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How to boost your immune system – Harvard Health

May 19th, 2015 6:49 pm

On the whole, your immune system does a remarkable job of defending you against disease-causing microorganisms. But sometimes it fails: A germ invades successfully and makes you sick. Is it possible to intervene in this process and make your immune system stronger? What if you improve your diet? Take certain vitamins or herbal preparations? Make other lifestyle changes in the hope of producing a near-perfect immune response?

The idea of boosting your immunity is enticing, but the ability to do so has proved elusive for several reasons. The immune system is precisely that a system, not a single entity. To function well, it requires balance and harmony. There is still much that researchers don't know about the intricacies and interconnectedness of the immune response. For now, there are no scientifically proven direct links between lifestyle and enhanced immune function.

But that doesn't mean the effects of lifestyle on the immune system aren't intriguing and shouldn't be studied. Quite a number of researchers are exploring the effects of diet, exercise, age, psychological stress, herbal supplements, and other factors on the immune response, both in animals and in humans. Although interesting results are emerging, thus far they can only be considered preliminary. That's because researchers are still trying to understand how the immune system works and how to interpret measurements of immune function. The following sections summarize some of the most active areas of research into these topics. In the meantime, general healthy-living strategies are a good way to start giving your immune system the upper hand.

Immunity in action. A healthy immune system can defeat invading pathogens as shown above, where two bacteria that cause gonorrhea are no match for the large phagocyte, called a neutrophil, that engulfs and kills them (see arrows).

Photos courtesy of Michael N. Starnbach, Ph.D., Harvard Medical School

Your first line of defense is to choose a healthy lifestyle. Following general good-health guidelines is the single best step you can take toward keeping your immune system strong and healthy. Every part of your body, including your immune system, functions better when protected from environmental assaults and bolstered by healthy-living strategies such as these:

Don't smoke.

Eat a diet high in fruits, vegetables, and whole grains, and low in saturated fat.

Exercise regularly.

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Your Immune System: Natural Born Killer – Crash Course …

May 19th, 2015 6:49 pm

Hank tells us about the team of deadly ninja assassins that is tasked with protecting our bodies from all the bad guys that want to kill us - also known as our immune system.

Crash Course Biology is now available on DVD! http://dft.ba/-8bCC

Like CrashCourse - http://www.facebook.com/YouTubeCrashC... Follow CrashCourse - http://www.twitter.com/TheCrashCourse

Table of Contents 1) Innate Immune System 1:45 a) Mucous Membranes 2:54 b) Inflammatory Response 3:44 c) Leukocytes 4:45

2) Open Letter 6:33 a) Natural Killer Cells 6:56 b) Dendritic Cells 7:57

3) Acquired Immune System 8:36 a) Antibodies 9:08 b) Lymphocytes 9:48 c) Cell-Mediated Response 10:17 d) Humoral Response 13:00

References Campbell Biology, 9th ed. http://faculty.stcc.edu/AandP/AP/AP2p... http://highered.mcgraw-hill.com/sites...

This video uses the following sounds from Freesound.org: "Pigs-01.flac" by Erdie "straw slurp.wav" by dparke4 "Disgusting Slop.wav" by Ighuaran "Sonar Ping.wav" by digifishmusic "Swishes.wav" by Pogotron "swing.mp3" by morgantj

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Stress Weakens the Immune System

May 19th, 2015 6:49 pm

Edwards, K.M., Burns V.E., Reynolds, T., Carroll, D., Drayson, M., & Ring, C. (2006). Acute stress exposure prior to influenza vaccination enhances antibody response in women. Brain, Behavior, and Immunity, 20:159-68.

Glaser, R., Sheridan, J. F., Malarkey, W. B., MacCallum, R. C., & Kiecolt-Glaser, J. K. (2000). Chronic stress modulates the immune response to a pneumococcal pneumonia vaccine. Psychosomatic Medicine, 62, 804-807.

Glaser, R., Robles, T. F., Malarkey, W. B., Sheridan, J. F., & Kiecolt-Glaser, J. K. (2003). Mild depressive symptoms are associated with amplified and prolonged inflammatory responses following influenza vaccination in older adults. Archives of General Psychiatry, 60, 1009-1014.

Kiecolt-Glaser, J. K., Glaser, R. (1993). Mind and immunity. In: D. Goleman & J. Gurin, (Eds.) Mind/Body Medicine (pp. 39-59). New York: Consumer Reports.

Kiecolt-Glaser, J. K., & Glaser, R. (2002). Depression and immune function: Central pathways to morbidity and mortality. Journal of Psychosomatic Research, 53, 873-876.

Kiecolt-Glaser, J. K., McGuire, L., Robles, T., & Glaser, R. (2002). Psychoneuroimmunology: Psychological influences on immune function and health. Journal of Consulting and Clinical Psychology, 70, 537-547.

Kiecolt-Glaser, J. K., McGuire, L., Robles, T., & Glaser, R. (2002). Psychoneuroimmunology and psychosomatic medicine: Back to the future. Psychosomatic Medicine, 64, 15-28.

Pressman, S. D., Cohen, S., Miller, G.E., Barkin, A., Rabin, B. S., Treanor, J. J. (2005). Loneliness, Social Network Size and Immune Response to Influenza Vaccination in College Freshmen, Health Psychology, 24, pages.

Robinson-Whelen, S., Tada, Y., MacCallum, R. C., McGuire, L., & Kiecolt-Glaser, J. K. (2001). Long-term caregiving: What happens when it ends? Journal of Abnormal Psychology, 110, 573-584.

Segerstrom, S. C. and Miller, G. E. (2004). Psychological Stress and the Human Immune System: A Meta-Analytic Study of 30 Years of Inquiry. Psychological Bulletin, Vol. 130, No. 4.

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DNA from the Beginning – An animated primer of 75 …

May 19th, 2015 6:48 pm

DNA from the Beginning is organized around key concepts. The science behind each concept is explained by: animation, image gallery, video interviews, problem, biographies, and links. DNAftb blog: It's the season of hibernation, something I've always wished I could do. Oh, to wrap up in a ball, sleep away the winter, and wake to a beautiful spring day like Bambi! Although the thought has always intrigued me, it never really occurred to me what a feat hibernation actually is. It turns out that all of the bears, squirrels, rabbits ... that I thought were just sleeping, are breaking biological laws!! If I was to stay dormant for 5 months, without food or drink and little to no movement in freezing temperatures [...] Feature: We have relaunched the Weed to Wonder site as a flexible "e-book" that can be viewed as a website, an app, or a printable PDF. Mailing List Gene News - Scientists stumble across unknown stem-cell type Find the DNALC on: Language options:

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Chimera (genetics) – Wikipedia, the free encyclopedia

May 19th, 2015 6:48 pm

A chimera (also spelled chimaera) (from the creature Chimera in Greek mythology) is a single organism composed of genetically distinct cells. This can result in male and female organs, two different blood types, or subtle variations in form.[1] Animal chimeras are produced by the merger of multiple fertilized eggs. In plant chimeras, however, the distinct types of tissue may originate from the same zygote, and the difference is often due to mutation during ordinary cell division. Normally, chimerism is not visible on casual inspection; however, it has been detected in the course of proving parentage.[2]

Another way that chimerism can occur in animals is by organ transplantation, giving one individual tissues that developed from two different genomes. For example, a bone marrow transplant can change someone's blood type.

An animal chimera is a single organism that is composed of two or more different populations of genetically distinct cells that originated from different zygotes involved in sexual reproduction. If the different cells have emerged from the same zygote, the organism is called a mosaic. Chimeras are formed from at least four parent cells (two fertilized eggs or early embryos fused together). Each population of cells keeps its own character and the resulting organism is a mixture of tissues. There are some reports of human chimerism.[1]

This condition is either inherited or it is acquired through the infusion of allogeneic hematopoietic cells during transplantation or transfusion. In nonidentical twins, chimerism occurs by means of blood-vessel anastomoses. The likelihood of offspring being a chimera is increased if it is created via in vitro fertilization[citation needed].[3] Chimeras can often breed, but the fertility and type of offspring depends on which cell line gave rise to the ovaries or testes; varying degrees of intersex differences may result if one set of cells is genetically female and another genetically male.

Tetragametic chimerism is a form of congenital chimerism. This condition occurs through the fertilization of two separate ova by two sperm, followed by aggregation of the two at the blastocyst or zygote stages. This results in the development of an organism with intermingled cell lines. Put another way, the chimera is formed from the merging of two nonidentical twins (although a similar merging presumably occurs with identical twins, but as their DNA is almost identical, the presence would not be immediately detectable in a very early (zygote or blastocyst) phase). As such, they can be male, female, or have mixed intersex characteristics.

As the organism develops, it can come to possess organs that have different sets of chromosomes. For example, the chimera may have a liver composed of cells with one set of chromosomes and have a kidney composed of cells with a second set of chromosomes. This has occurred in humans, and at one time was thought to be extremely rare, though more recent evidence suggests that it is not as rare as previously believed.[1][4]

This is particularly true for the marmoset. Recent research shows most marmosets are chimeras, sharing DNA with their fraternal twins.[5] 95% of Marmoset fraternal twins trade blood through chorionic fusions, making them hematopoietic chimeras.[6][7]

Most chimeras will go through life without realizing they are chimeras. The difference in phenotypes may be subtle (e.g., having a hitchhiker's thumb and a straight thumb, eyes of slightly different colors, differential hair growth on opposite sides of the body, etc.) or completely undetectable. Chimeras may also show, under a certain spectrum of UV light, distinctive marks on the back resembling that of arrow points pointing downwards from the shoulders down to the lower back; this is one expression of pigment unevenness called Blaschko's lines.[8]

Affected persons may be identified by the finding of two populations of red cells or, if the zygotes are of opposite sex, ambiguous genitalia and intersex alone or in combination; such persons sometimes also have patchy skin, hair, or eye pigmentation (heterochromia). If the blastocysts are of opposite sex, genitals of both sexes may be formed: either ovary and testis, or combined ovotestes, in one rare form of intersex, a condition previously known as true hermaphroditism.

Note that the frequency of this condition does not indicate the true prevalence of chimerism. Most chimeras composed of both male and female cells probably do not have an intersex condition, as might be expected if the two cell populations were evenly blended throughout the body. Often, most or all of the cells of a single cell type will be composed of a single cell line, i.e. the blood may be composed predominantly of one cell line, and the internal organs of the other cell line. Genitalia produce the hormones responsible for other sex characteristics. If the sex organs are homogeneous, the individual will not be expected to exhibit any intersex traits.

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Genetic Testing Clinical Reference For Clinicians …

May 19th, 2015 6:48 pm

GENETIC TESTING TIME TOOLA Resource from the American College of Preventive Medicine

CLINICAL REFERENCEThe following Clinical Reference Document provides the evidence to support the Genetic Testing Time Tool. The following bookmarks are available to move around the Clinical Reference Document. You may also download a printable version for future reference.

Human genomics, the study of structure, function, and interactions of all genes in the human genome, promises to improve the diagnosis, treatment, and prevention of disease. The proliferation of genetic tests has been greatly accelerated by the Human Genome Project over the last decade. [1]

Meanwhile, practicing physicians and health professionals need to be trained in the principles, applications, and the limitations of genomics and genomic medicine. [2]

Over 1,500 genetic tests are now available clinically, with nearly 300 more available on a research basis only. The number of genetic tests is predicted to increase by 25% annually. [3] There is a boom in the development of genetic tests using the scanning technology from the Genome Project, but questions remain regarding the validity and usefulness of these newer tests.

Genotype: The genetic constitution of the individual; the characterization of the genes. [6]

Phenotype: The observable properties of an individual that are the product of interactions between the genotype and the environment. [6] Nucleotides: The monomeric units from which DNA or RNA polymers are constructed. They consist of a purine or pyrimidine base, a pentose sugar, and a phosphate group. [6]

Oligonucleotide: A relatively short single-stranded nucleic-acid chain usually consisting of 2 to 20 nucleotides that is synthesized to match a region where a mutation is known to occur, and then used as a probe. [6]

Single nucleotide polymorphism (SNP): A single nucleotide variation in a genetic sequence that occurs at appreciable frequency in the population. [6]

Penetrance: The probability of developing the disease in those who have the mutation. [6]

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Kids Health – Down Syndrome

May 19th, 2015 6:48 pm

Kids with Down syndrome tend to share certain physical features such as a flat facial profile, an upward slant to the eyes, small ears, and a protruding tongue.

Low muscle tone (called hypotonia) is also characteristic of children with DS, and babies in particular may seem especially "floppy." Though this can and often does improve over time, most children with DS typically reach developmental milestones like sitting up, crawling, and walking later than other kids.

At birth, kids with DS are usually of average size, but they tend to grow at a slower rate and remain smaller than their peers. For infants, low muscle tone may contribute to sucking and feeding problems, as well as constipation and other digestive issues. Toddlers and older kids may have delays in speech and self-care skills like feeding, dressing, and toilet teaching.

Down syndrome affects kids' ability to learn in different ways, but most have mild to moderate intellectual impairment. Kids with DS can and do learn, and are capable of developing skills throughout their lives. They simply reach goals at a different pace which is why it's important not to compare a child with DS against typically developing siblings or even other children with the condition.

Kids with DS have a wide range of abilities, and there's no way to tell at birth what they will be capable of as they grow up.

While some kids with DS have no significant health problems, others may experience a host of medical issues that require extra care. For example, almost half of all children born with DS will have a congenital heart defect.

Kids with Down syndrome are also at an increased risk of developing pulmonary hypertension, a serious condition that can lead to irreversible damage to the lungs. All infants with Down syndrome should be evaluated by a pediatric cardiologist.

Approximately half of all kids with DS also have problems with hearing and vision. Hearing loss can be related to fluid buildup in the inner ear or to structural problems of the ear itself. Vision problems commonly include strabismus (cross-eyed), near- or farsightedness, and an increased risk of cataracts.

Regular evaluations by an otolaryngologist (ear, nose, and throat doctor), audiologist, and an ophthalmologist are necessary to detect and correct any problems before they affect language and learning skills.

Other medical conditions that may occur more frequently in kids with DS include thyroid problems, intestinal abnormalities, seizure disorders, respiratory problems, obesity, an increased susceptibility to infection, and a higher risk of childhood leukemia. Upper neck abnormalities are sometimes found and should be evaluated by a doctor (these can be detected by cervical spine X-rays). Fortunately, many of these conditions are treatable.

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Genetic engineering – Wikipedia, the free encyclopedia

May 19th, 2015 6:48 pm

Genetic engineering, also called genetic modification, is the direct manipulation of an organism's genome using biotechnology. New DNA may be inserted in the host genome by first isolating and copying the genetic material of interest using molecular cloning methods to generate a DNA sequence, or by synthesizing the DNA, and then inserting this construct into the host organism. Genes may be removed, or "knocked out", using a nuclease. Gene targeting is a different technique that uses homologous recombination to change an endogenous gene, and can be used to delete a gene, remove exons, add a gene, or introduce point mutations.

An organism that is generated through genetic engineering is considered to be a genetically modified organism (GMO). The first GMOs were bacteria generated in 1973 and GM mice in 1974. Insulin-producing bacteria were commercialized in 1982 and genetically modified food has been sold since 1994. Glofish, the first GMO designed as a pet, was first sold in the United States December in 2003.[1]

Genetic engineering techniques have been applied in numerous fields including research, agriculture, industrial biotechnology, and medicine. Enzymes used in laundry detergent and medicines such as insulin and human growth hormone are now manufactured in GM cells, experimental GM cell lines and GM animals such as mice or zebrafish are being used for research purposes, and genetically modified crops have been commercialized.

IUPAC definition

Process of inserting new genetic information into existing cells in order to modify a specific organism for the purpose of changing its characteristics.

Note: Adapted from ref.[2][3]

Genetic engineering alters the genetic make-up of an organism using techniques that remove heritable material or that introduce DNA prepared outside the organism either directly into the host or into a cell that is then fused or hybridized with the host.[4] This involves using recombinant nucleic acid (DNA or RNA) techniques to form new combinations of heritable genetic material followed by the incorporation of that material either indirectly through a vector system or directly through micro-injection, macro-injection and micro-encapsulation techniques.

Genetic engineering does not normally include traditional animal and plant breeding, in vitro fertilisation, induction of polyploidy, mutagenesis and cell fusion techniques that do not use recombinant nucleic acids or a genetically modified organism in the process.[4] However the European Commission has also defined genetic engineering broadly as including selective breeding and other means of artificial selection.[5]Cloning and stem cell research, although not considered genetic engineering,[6] are closely related and genetic engineering can be used within them.[7]Synthetic biology is an emerging discipline that takes genetic engineering a step further by introducing artificially synthesized material from raw materials into an organism.[8]

If genetic material from another species is added to the host, the resulting organism is called transgenic. If genetic material from the same species or a species that can naturally breed with the host is used the resulting organism is called cisgenic.[9] Genetic engineering can also be used to remove genetic material from the target organism, creating a gene knockout organism.[10] In Europe genetic modification is synonymous with genetic engineering while within the United States of America it can also refer to conventional breeding methods.[11][12] The Canadian regulatory system is based on whether a product has novel features regardless of method of origin. In other words, a product is regulated as genetically modified if it carries some trait not previously found in the species whether it was generated using traditional breeding methods (e.g., selective breeding, cell fusion, mutation breeding) or genetic engineering.[13][14][15] Within the scientific community, the term genetic engineering is not commonly used; more specific terms such as transgenic are preferred.

Plants, animals or micro organisms that have changed through genetic engineering are termed genetically modified organisms or GMOs.[16] Bacteria were the first organisms to be genetically modified. Plasmid DNA containing new genes can be inserted into the bacterial cell and the bacteria will then express those genes. These genes can code for medicines or enzymes that process food and other substrates.[17][18] Plants have been modified for insect protection, herbicide resistance, virus resistance, enhanced nutrition, tolerance to environmental pressures and the production of edible vaccines.[19] Most commercialised GMO's are insect resistant and/or herbicide tolerant crop plants.[20] Genetically modified animals have been used for research, model animals and the production of agricultural or pharmaceutical products. They include animals with genes knocked out, increased susceptibility to disease, hormones for extra growth and the ability to express proteins in their milk.[21]

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Sustainable Table | Genetic Engineering

May 19th, 2015 6:48 pm

Genetic engineering (GE) is the modification of an organisms genetic composition by artificial means, often involving the transfer of specific traits, or genes, from one organism into a plant or animal of an entirely different species. When gene transfer occurs, the resulting organism is called transgenic or a GMO (genetically modified organism).

Genetic engineering is different from traditional cross breeding, where genes can only be exchanged between closely related species. With genetic engineering, genes from completely different species can be inserted into one another. For example, scientists in Taiwan have successfully inserted jellyfish genes into pigs in order to make them glow in the dark.

All life is made up of one or more cells. Each cell contains a nucleus, and inside each nucleus are strings of molecules called DNA (deoxyribonucleic acid). Each strand of DNA is divided into small sections called genes. These genes contain a unique set of instructions that determine how the organism grows, develops, looks, and lives.

During genetic engineering processes, specific genes are removed from one organism and inserted into another plant or animal, thus transferring specific traits.

Nearly 400 million acres of farmland worldwide are now used to grow GE crops such as cotton, corn, soybeans and rice. In the United States, GE soybeans, corn and cotton make up 93%, 88% and 94% of the total acreage of the respective crops. The majority of genetically engineered crops grown today are engineered to be resistant to pesticides and/or herbicides so that they can withstand being sprayed with weed killer while the rest of the plants in the field die.

GE proponents claim genetically engineered crops use fewer pesticides than non-GE crops, when in reality GE plants can require even more chemicals. This is because weeds become resistant to pesticides, leading farmers to spray even more on their crops. This pollutes the environment, exposes food to higher levels of toxins, and creates greater safety concerns for farmers and farm workers.

Some GE crops are actually classified as pesticides. For instance, the New Leaf potato, which has since been taken off grocery shelves, was genetically engineered to produce the Bt (Bacillus thuringiensis) toxin in order to kill any pests that attempted to eat it. The actual potato was designated as a pesticide and was therefore regulated by the Environmental Protection Agency (EPA), instead of the Food & Drug Administration (FDA), which regulates food. Because of this, safety testing for these potatoes was not as rigorous as with food, since the EPA regulations had never anticipated that people would intentionally consume pesticides as food.

Adequate research has not yet been carried out to identify the effects of eating animals that have been fed genetically engineered grain, nor have sufficient studies been conducted on the effects of directly consuming genetically engineered crops like corn and soy. Yet despite our lack of knowledge, GE crops are widely used throughout the world as both human and animal food.

Scientists are currently working on ways to genetically engineer farm animals. Atlantic salmon have been engineered to grow to market size twice as fast as wild salmon, chickens have been engineered so that they cannot spread H5N1 avian flu to other birds, and research is being conducted to create cattle that cannot develop the infectious prions that can cause bovine spongiform encephalopathy (aka mad cow disease). At this point, no GE animals have been approved by the FDA to enter the food supply. Genetic engineering experiments on animals do, however, pose potential risks to food safety and the environment.

In 2003, scientists at the University of Illinois were conducting an experiment that involved inserting cow genes into female pigs in order to increase their milk production. They also inserted a synthetic gene to make milk digestion easier for the piglets. Although the experimental pigs were supposed to be destroyed, as instructed by the FDA, 386 offspring of the experimental pigs were sold to slaughterhouses, where they were processed and sent to grocery stores as pork chops, sausage, and bacon.

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genetic engineering | Encyclopedia Britannica

May 19th, 2015 6:48 pm

genetic engineering,the artificial manipulation, modification, and recombination of DNA or other nucleic acid molecules in order to modify an organism or population of organisms.

The term genetic engineering initially meant any of a wide range of techniques for the modification or manipulation of organisms through the processes of heredity and reproduction. As such, the term embraced both artificial selection and all the interventions of biomedical techniques, among them artificial insemination, in vitro fertilization (e.g., test-tube babies), sperm banks, cloning, and gene manipulation. But the term now denotes the narrower field of recombinant DNA technology, or gene cloning (see Figure), in which DNA molecules from two or more sources are combined either within cells or in vitro and are then inserted into host organisms in which they are able to propagate. Gene cloning is used to produce new genetic combinations that are of value to science, medicine, agriculture, or industry.

DNA is the carrier of genetic information; it achieves its effects by directing the synthesis of proteins. Most recombinant DNA technology involves the insertion of foreign genes into the plasmids of common laboratory strains of bacteria. Plasmids are small rings of DNA; they are not part of the bacteriums chromosome (the main repository of the organisms genetic information). Nonetheless, they are capable of directing protein synthesis, and, like chromosomal DNA, they are reproduced and passed on to the bacteriums progeny. Thus, by incorporating foreign DNA (for example, a mammalian gene) into a bacterium, researchers can obtain an almost limitless number of copies of the inserted gene. Furthermore, if the inserted gene is operative (i.e., if it directs protein synthesis), the modified bacterium will produce the protein specified by the foreign DNA.

A key step in the development of genetic engineering was the discovery of restriction enzymes in 1968 by the Swiss microbiologist Werner Arber. However, type II restriction enzymes, which are essential to genetic engineering for their ability to cleave a specific site within the DNA (as opposed to type I restriction enzymes, which cleave DNA at random sites), were not identified until 1969, when the American molecular biologist Hamilton O. Smith purified this enzyme. Drawing on Smiths work, the American molecular biologist Daniel Nathans helped advance the technique of DNA recombination in 197071 and demonstrated that type II enzymes could be useful in genetic studies. Genetic engineering itself was pioneered in 1973 by the American biochemists Stanley N. Cohen and Herbert W. Boyer, who were among the first to cut DNA into fragments, rejoin different fragments, and insert the new genes into E. coli bacteria, which then reproduced.

Genetic engineering has advanced the understanding of many theoretical and practical aspects of gene function and organization. Through recombinant DNA techniques, bacteria have been created that are capable of synthesizing human insulin, human growth hormone, alpha interferon, a hepatitis B vaccine, and other medically useful substances. Plants may be genetically adjusted to enable them to fix nitrogen, and genetic diseases can possibly be corrected by replacing bad genes with normal ones. Nevertheless, special concern has been focused on such achievements for fear that they might result in the introduction of unfavourable and possibly dangerous traits into microorganisms that were previously free of theme.g., resistance to antibiotics, production of toxins, or a tendency to cause disease.

The new microorganisms created by recombinant DNA research were deemed patentable in 1980, and in 1986 the U.S. Department of Agriculture approved the sale of the first living genetically altered organisma virus, used as a pseudorabies vaccine, from which a single gene had been cut. Since then several hundred patents have been awarded for genetically altered bacteria and plants.

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What is gene therapy? – Genetics Home Reference

May 19th, 2015 6:48 pm

Gene therapy is an experimental technique that uses genes to treat or prevent disease. In the future, this technique may allow doctors to treat a disorder by inserting a gene into a patients cells instead of using drugs or surgery. Researchers are testing several approaches to gene therapy, including:

Replacing a mutated gene that causes disease with a healthy copy of the gene.

Inactivating, or knocking out, a mutated gene that is functioning improperly.

Introducing a new gene into the body to help fight a disease.

Although gene therapy is a promising treatment option for a number of diseases (including inherited disorders, some types of cancer, and certain viral infections), the technique remains risky and is still under study to make sure that it will be safe and effective. Gene therapy is currently only being tested for the treatment of diseases that have no other cures.

MedlinePlus from the National Library of Medicine offers a list of links to information about genes and gene therapy.

Educational resources related to gene therapy are available from GeneEd.

The Genetic Science Learning Center at the University of Utah provides an interactive introduction to gene therapy and a discussion of several diseases for which gene therapy has been successful.

The Centre for Genetics Education provides an introduction to gene therapy, including a discussion of ethical and safety considerations.

KidsHealth from Nemours offers a fact sheet called Gene Therapy and Children.

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What is Gene Therapy ? – Learn Genetics

May 19th, 2015 6:48 pm

Gene therapy could be a way to fix a genetic problem at its source. By adding a corrected copy of a defective gene, gene therapy promises to help diseased tissues and organs work properly. This approach is different from traditional drug-based approaches, which may treat symptoms but not the underlying genetic problems.

Most commonly, gene therapy uses a vector, typically a virus, to deliver a gene to the cells where it's needed. Once it's inside, the cell's gene-reading machinery uses the information in the gene to build RNA and protein molecules. The proteins (or RNA) can then carry out their job in the cells.

But gene therapy is not a molecular bandage that will automatically fix any genetic problem. While many disorders or medical conditions can potentially be treated using gene therapy, others are not suitable for this approach. So what makes a condition a good candidate for gene therapy?

Could the condition be corrected by adding one or a few functional genes? For you to even consider gene therapy, the answer must be "yes." For instance, genetic disorders caused by mutations in single genes tend to be good candidates for gene therapy, while diseases involving many genes and environmental factors tend to be poor candidates.

Do you know which genes are involved? If you plan to treat a genetic flaw, you need to know which gene(s) to pursue. You must also have a DNA copy of the gene available in your laboratory.

Do you understand the biology of the disorder? To design the best possible approach, you need to learn all you can about how the gene factors into the disorder. For example, which tissues the disorder affects, what role the protein encoded by the gene plays within the cells of that tissue, and exactly how mutations in the gene affect the protein's function.

Will adding a normal copy of the gene fix the problem in the affected tissue? Or could getting rid of the defective gene fix it? Sometimes when a gene is defective, no functional protein is being made from it. In cases like these, adding a functional copy of the gene could correct the problem. But sometimes a defective gene codes for a protein that starts doing something it shouldn't or prevents another protein from doing its job. In order to correct the problem, you would need to get rid of the misbehaving protein.

Can you deliver the gene to cells of the affected tissue? The answer will come from several pieces of information, including the tissue's accessibility and molecular signatures.

APA format: Genetic Science Learning Center (2014, June 22) What is Gene Therapy?. Learn.Genetics. Retrieved May 19, 2015, from http://learn.genetics.utah.edu/content/genetherapy/gtintro/ MLA format: Genetic Science Learning Center. "What is Gene Therapy?." Learn.Genetics 19 May 2015 <http://learn.genetics.utah.edu/content/genetherapy/gtintro/> Chicago format: Genetic Science Learning Center, "What is Gene Therapy?," Learn.Genetics, 22 June 2014, <http://learn.genetics.utah.edu/content/genetherapy/gtintro/> (19 May 2015)

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Gene Therapy – Genetics Home Reference

May 19th, 2015 6:48 pm

Please choose from the following list of questions for information about gene therapy, an experimental technique that uses genetic material to treat or prevent disease.

On this page:

Gene therapy is an experimental technique that uses genes to treat or prevent disease. In the future, this technique may allow doctors to treat a disorder by inserting a gene into a patients cells instead of using drugs or surgery. Researchers are testing several approaches to gene therapy, including:

Replacing a mutated gene that causes disease with a healthy copy of the gene.

Inactivating, or knocking out, a mutated gene that is functioning improperly.

Introducing a new gene into the body to help fight a disease.

Although gene therapy is a promising treatment option for a number of diseases (including inherited disorders, some types of cancer, and certain viral infections), the technique remains risky and is still under study to make sure that it will be safe and effective. Gene therapy is currently only being tested for the treatment of diseases that have no other cures.

MedlinePlus from the National Library of Medicine offers a list of links to information about genes and gene therapy.

Educational resources related to gene therapy are available from GeneEd.

The Genetic Science Learning Center at the University of Utah provides an interactive introduction to gene therapy and a discussion of several diseases for which gene therapy has been successful.

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Gene Therapy - Genetics Home Reference

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Alliance for Cancer Gene Therapy (ACGT) Foundation

May 19th, 2015 6:48 pm

Spotlight News Spot

April 28, 2015

ACGTs inaugural Innovative Leadership Award Gala raised $750,000 to fund cell and gene therapy research which aims to make cancer a manageable and treatable disease. The gala, honoring the significant contributions of Dr. Savio L.C. Woo has made to Read More

March 26, 2015

Emperor of All Maladies on PBS (CPTV) presented by documentary filmmaker Ken Burns, isbased on the2010 Pulitzer Prize-winning bookThe Emperor of All Maladies: A Biography of Cancerby Dr. Siddhartha Mukherjee. Among other scientists, doctors and patients, the programfeatured ACGT Researcher Read More

March 2, 2015

HBO Documentary Series, Vice, aired an episode on February 27th entitled, Killing Cancer, focusing on how different viruses are being used successfully as weapons to target cancer. The program focuses on 2013 ACGT Grantee Dr. John Bell, for his work Read More

January 16, 2015

In 2012, Bob Levis, an Allentown, Pennsylvania resident, believed he had come to the end of his life. Diagnosed in 2002 with chronic lymphocytic leukemia, the cancer had resisted every possible treatment and had infiltrated his bone marrow, paralyzing his Read More

March 16, 2014

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Procedure and Information on Fat Stem Cell Therapy

May 19th, 2015 6:47 pm

Fat Stem Cell Therapy 5 Step Treatment Procedure

Fat Stem Cell Therapy Procedure Avg. Rating: 5 out of 5 from 116 votes.

Autologous Adipose Enriched Stem Cells can help reverse and repair some of the world's most common medical diseases. Infinite Horizons Medical Center has perfected the Treatment and Recovery process to help patients suffering from some common medical conditions such as, Osteoarthritis, Pulmonary Disease, and Diabetes Type II, as well as some Cosmetic Procedures like Face Lifts, Breast Augmentation, and Anti-Aging. You can click on any procedure named above to get more detailed information.

Below you'll find our 5 step treatment procedure explained in detail:

Preparing the abdomen It all starts with a local anesthetic to the abdominal area.

Mini Liposuction A board certified cosmetic surgeon, who is also trained in liposuction techniques will then perform a manual mini liposuction procedure.

Fat Quantity The amount of fat that is extracted depends on which treatment we are performing. In most cases we only need between 40-200cc of fat.

Fat Distribution The surgeon will take it from both sides of the abdomen to ensure proper distribution.

Time Once the fat required has been harvested it will be handed to the Lab Tech to begin processing. The Fat Harvesting process has taken roughly 30-50 minutes.

Quantity of Fat Each test tube of harvested fat will now be handled by the Lab Tech who has been carefully trained by the Bio Tech Company that supplies us with this process. Not all the test tubes of fat will be processed. Some of the fat harvested may be needed to complete certain other cosmetic procedures.

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Procedure and Information on Fat Stem Cell Therapy

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Mesenchymal stem cell – Wikipedia, the free encyclopedia

May 19th, 2015 6:47 pm

Mesenchymal stem cells, or MSCs, are multipotent stromal cells that can differentiate into a variety of cell types,[1] including: osteoblasts (bone cells),[2]chondrocytes (cartilage cells),[3]myocytes (muscle cells)[4] and adipocytes (fat cells). This phenomenon has been documented in specific cells and tissues in living animals and their counterparts growing in tissue culture.

While the terms mesenchymal stem cell and marrow stromal cell have been used interchangeably, neither term is sufficiently descriptive:

The youngest, most primitive MSCs can be obtained from the umbilical cord tissue, namely Wharton's jelly and the umbilical cord blood. However the MSCs are found in much higher concentration in the Whartons jelly compared to the umbilical cord blood, which is a rich source of hematopoietic stem cells. The umbilical cord is easily obtained after the birth of the newborn, is normally thrown away, and poses no risk for collection. The umbilical cord MSCs have more primitive properties than other adult MSCs obtained later in life, which might make them a useful source of MSCs for clinical applications.

An extremely rich source for mesenchymal stem cells is the developing tooth bud of the mandibular third molar. While considered multipotent, they may prove to be pluripotent. The stem cells eventually form enamel, dentin, blood vessels, dental pulp, and nervous tissues, including a minimum of 29 different unique end organs. Because of extreme ease in collection at 810 years of age before calcification, and minimal to no morbidity, they will probably constitute a major source for personal banking, research, and multiple therapies. These stem cells have been shown capable of producing hepatocytes.

Additionally, amniotic fluid has been shown to be a rich source of stem cells. As many as 1 in 100 cells collected during amniocentesis has been shown to be a pluripotent mesenchymal stem cell.[9]

Adipose tissue is one of the richest sources of MSCs. There are more than 500 times more stem cells in 1 gram of fat than in 1 gram of aspirated bone marrow. Adipose stem cells are actively being researched in clinical trials for treatment of a variety of diseases.

The presence of MSCs in peripheral blood has been controversial. However, a few groups have successfully isolated MSCs from human peripheral blood and been able to expand them in culture.[10] Australian company Cynata also claims the ability to mass-produce MSCs from induced pluripotent stem cells obtained from blood cells using the method of K. Hu et al.[11][12]

Mesenchymal stem cells are characterized morphologically by a small cell body with a few cell processes that are long and thin. The cell body contains a large, round nucleus with a prominent nucleolus, which is surrounded by finely dispersed chromatin particles, giving the nucleus a clear appearance. The remainder of the cell body contains a small amount of Golgi apparatus, rough endoplasmic reticulum, mitochondria, and polyribosomes. The cells, which are long and thin, are widely dispersed and the adjacent extracellular matrix is populated by a few reticular fibrils but is devoid of the other types of collagen fibrils.[13][14]

The International Society for Cellular Therapy (ISCT) has proposed a set of standards to define MSCs. A cell can be classified as an MSC if it shows plastic adherent properties under normal culture conditions and has a fibroblast-like morphology. In fact, some argue that MSCs and fibroblasts are functionally identical.[15] Furthermore, MSCs can undergo osteogenic, adipogenic and chondrogenic differentiation ex-vivo. The cultured MSCs also express on their surface CD73, CD90 and CD105, while lacking the expression of CD11b, CD14, CD19, CD34, CD45, CD79a and HLA-DR surface markers.[16]

MSCs have a great capacity for self-renewal while maintaining their multipotency. Beyond that, there is little that can be definitively said. The standard test to confirm multipotency is differentiation of the cells into osteoblasts, adipocytes, and chondrocytes as well as myocytes and neurons. MSCs have been seen to even differentiate into neuron-like cells,[17][18] but there is lingering doubt whether the MSC-derived neurons are functional.[19] The degree to which the culture will differentiate varies among individuals and how differentiation is induced, e.g., chemical vs. mechanical;[20] and it is not clear whether this variation is due to a different amount of "true" progenitor cells in the culture or variable differentiation capacities of individuals' progenitors. The capacity of cells to proliferate and differentiate is known to decrease with the age of the donor, as well as the time in culture. Likewise, whether this is due to a decrease in the number of MSCs or a change to the existing MSCs is not known.[citation needed]

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Blurry Eye Vision Blurred Vision, and Cures for Blurry …

May 19th, 2015 6:47 pm

by admin on February 14, 2012

Are you a patient suffering from blurred vision in the left eye? There are two types of blurred vision instances that the patient can be suffering from. The first instance includes the patient suffering from gradual blurred vision in the left eye and the second instance indicates a patient that is suffering from sudden blurred vision in the left eye.

Though there are many causes for each of these types of cases, it is important for the patient suffering from sudden blurred vision in the left eye to schedule an appointment with an optometrist or schedule an appointment with their family doctor to try and narrow down the cause of the blurred vision in the left eye.

Have you had any sudden trauma to the left eye? Many times, trauma to the left eye can create blurred vision in that eye for a period of between two to four days as the eye heals from the injury. However, if you have suffered from a trauma to the left eye and are suffering from blurred vision, you just might want to check with the local health care professional to ensure that there has been no damage to the eye.

Blurred vision has a number of causes, aside from trauma, but the causes become more worrisome when it is one eye that is suffering from the blurred vision, in contrast to both of the eyes suffering from blurred vision.

It is important to consider all of the options and consider all of the causes of blurred vision to ensure that the patient is going to have adequate medical attention and avoid any repercussions from the cause of the blurred vision.

A simple appointment with a doctor or optometrist can help to rule out any damage done to the eye and is recommended for those suffering from blurred vision.

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6 Tips for Eye Health and Maintaining Good Eyesight

May 19th, 2015 6:47 pm

Don't take your eyes for granted. Protect your sight with these six tips:

Protecting your eyes starts with the food on your plate. Nutrients such as omega-3 fatty acids, lutein, zinc, and vitamins C and E might help ward off age-related vision problems such as macular degeneration and cataracts, studies show. Regularly eating these foods can help lead to good eye health:

Eating a well-balanced diet also helps you maintain a healthy weight, which makes you less likely to get obesity-related diseases such as type 2 diabetes. Diabetes is the leading cause of blindness in adults.

Smoking makes you more likely to get cataracts, optic nerve damage, and macular degeneration. If you've tried to quit smoking before and started smoking again, keep trying. The more times you try to quit smoking, the more likely you are to succeed.

The right kind of sunglasses will help protect your eyes from the sun's ultraviolet (UV) rays.

Too much UV exposure makes you more likely to get cataracts and macular degeneration.

Choose sunglasses that block 99% to 100% of both UVA and UVB rays. Wraparound lenses help protect your eyes from the side. Polarized lenses reduce glare when driving.

If you wear contact lenses, some offer UV protection. It's still a good idea to wear sunglasses for more protection, though.

If you work with hazardous or airborne materials on the job or at home, wear safety glasses or protective goggles every time.

Certain sports such as ice hockey, racquetball, and lacrosse can also lead to eye injury. Wear eye protection (such as helmets with protective face masks or sports goggles with polycarbonate lenses) to shield your eyes.

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Diabetes mellitus – Wikipedia, the free encyclopedia

May 19th, 2015 6:47 pm

Diabetes mellitus (DM), commonly referred to as diabetes, is a group of metabolic diseases in which there are high blood sugar levels over a prolonged period.[2] Symptoms of high blood sugar include frequent urination, increased thirst, and increased hunger. If left untreated, diabetes can cause many complications.[3]Acute complications include diabetic ketoacidosis and nonketotic hyperosmolar coma.[4] Serious long-term complications include cardiovascular disease, stroke, chronic kidney failure, foot ulcers, and damage to the eyes.[3]

Diabetes is due to either the pancreas not producing enough insulin or the cells of the body not responding properly to the insulin produced.[5] There are three main types of diabetes mellitus:

Prevention and treatment involve a healthy diet, physical exercise, not using tobacco and being a normal body weight. Blood pressure control and proper foot care are also important for people with the disease. Type 1 diabetes must be managed with insulin injections.[3] Type 2 diabetes may be treated with medications with or without insulin.[7] Insulin and some oral medications can cause low blood sugar.[8]Weight loss surgery in those with obesity is an effective measure in those with type 2 DM.[9]Gestational diabetes usually resolves after the birth of the baby.[10]

As of 2014, an estimated 387 million people have diabetes worldwide,[11] with type 2 diabetes making up about 90% of the cases.[12][13] This represents 8.3% of the adult population,[13] with equal rates in both women and men.[14] From 2012 to 2014, diabetes is estimated to have resulted in 1.5 to 4.9 million deaths each year.[7][11] Diabetes at least doubles a person's risk of death.[3] The number of people with diabetes is expected to rise to 592 million by 2035.[11] The global economic cost of diabetes in 2014 was estimated to be $612 billion USD.[15] In the United States, diabetes cost $245 billion in 2012.[16]

The classic symptoms of untreated diabetes are weight loss, polyuria (increased urination), polydipsia (increased thirst), and polyphagia (increased hunger).[17] Symptoms may develop rapidly (weeks or months) in type1 diabetes, while they usually develop much more slowly and may be subtle or absent in type2 diabetes.

Several other signs and symptoms can mark the onset of diabetes, although they are not specific to the disease. In addition to the known ones above, they include blurry vision, headache, fatigue, slow healing of cuts, and itchy skin. Prolonged high blood glucose can cause glucose absorption in the lens of the eye, which leads to changes in its shape, resulting in vision changes. A number of skin rashes that can occur in diabetes are collectively known as diabetic dermadromes.

Low blood sugar is common in persons with type 1 and type 2 diabetes. Most cases are mild and are not considered medical emergencies. Effects can range from feelings of unease, sweating, trembling, and increased appetite in mild cases to more serious issues such as confusion, changes in behavior, seizures, unconsciousness, and (rarely) permanent brain damage or death in severe cases.[18][19] Mild cases are self-treated by eating or drinking something high in sugar. Severe cases can lead to unconsciousness and must be treated with intravenous glucose or injections with glucagon.

People (usually with type1 diabetes) may also experience episodes of diabetic ketoacidosis, a metabolic disturbance characterized by nausea, vomiting and abdominal pain, the smell of acetone on the breath, deep breathing known as Kussmaul breathing, and in severe cases a decreased level of consciousness.[20]

A rare but equally severe possibility is hyperosmolar nonketotic state, which is more common in type2 diabetes and is mainly the result of dehydration.[20]

All forms of diabetes increase the risk of long-term complications. These typically develop after many years (1020), but may be the first symptom in those who have otherwise not received a diagnosis before that time.

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Diabetes.net Welcome to the Original Diabetes Network

May 19th, 2015 6:46 pm

The Artificial Pancreas Treatment mimics natural and provides themissing stimulationof the liver. Clinics are open in the USA, China, and India, with Clinics planned in Taiwan, Mexico, Europe and Africa.

How is it "natural?" Theliverprovides theenzymes needed for the bodyto metabolize (burn) carbohydrates. This is the core problem that people with diabetes have, the inability to process this important type of food.

When the Artificial Pancreas Treatment mimics a normal pancreas stimulation of the liver, these missingenzymes are restored, the body can process carbohydrateswhich provides each cell with needed levels of cellular energy (ATP) fromcarbohydrates.

With that needed energy thetissuesheal themselves because the DNA remembers how to heal, naturally!

For Information, call(916) 550 1050

The Goals and Achievements

Global Roll Out of the THE ARTIFICIAL PANCREAS TREATMENT With new clinics going into 45 cities, and existing clinics in 18 USA cities the Trina Health Global Roll Out is under way. "We have proven that we can stop the suffering of diabetic heart, kidney, eye, nerve, brain fog, and wounds, what more is neeed?" announce the Trina Health CEO, and Chief Medical Officers. For over 20 years the Artificial Pancreas Treatment and Artificial Pancreas System have been in development, but the problem has always been that the cost of delivering the treatment is too high for the average diabetic patient. It is now proven that APT will slow, stop and in many ways reverse the complications of diabetes, truly wonderful news to millions. And now it is affordable and available. The treatment provides what a nondiabetic pancreas supplies, a very discreet series of oscillations in the blood of a nondiabetic person. These oscillations are required for normal carbohydrate and lipid metabolism. By mimicking what a nondiabetic pancreas does, the Artificial Pancreas System restores energy to the cells from carbohydrates, which are needed for the cells to have a normal amount of energy (ATP). The good news is that the DNA of every cell never forgets what it is supposed to do, and once proper metabolic energy is reestablished, the cell knows what to do and the body prepares itself naturally and in its own special way. The Artificial Pancreas Treatment (which is a treatment under the practice of Medicine) uses the FDA-cleared Bionica pump, the infusion part of the Artificial Pancreas System, and is now in the final commercial rollout phase where patients can be treated for six months and, with the help of a friend or family member, the patient can be treated at home for three weeks coming back only once a month into the clinic for the first year. After a successful year the patient will be able to be treated once every two months. This approach provides the answer on how to treat millions of people who are in dire need of stopping and reversing their diabetes complications. CALL OUR NUMBER FOR THE NEXT WEBINAR

Because of the amazing outcomes, there are not enough chairs for patients seeking the Artificial Pancreas Treatment. The two physician groups have joined to provide the outstanding care achieved in other clinics. This Clinic is a "Fath Based" clinic which helps even those who cannot fully pay. God bless them for that ! Read more...

Expanded Management by Hunter Carr and Scott Hepford is brining more patients to the Trina Health West Houston location, and additional locations in Houston are being planned. If anyone or a loved one has diabetes related complications, these Trina Health facilities provide free consultations and assessments. Conveniently located at 11511 Katy Freeway, Suite 510, Houston, TX, 77079 Please call: 713.595.9595 Read more...

Located in a new prestigious building, the Santa Monica clinic will be serving the UCLA and Beverly Hills area. Scheduled to open in March, this will provide a second LA Basin location. 5 more clinics are opening in the LA area. Read more...

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