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Keyword: immunesystem

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  • How some exposure to Ebola could lead to immunity

    10/27/2014 10:34:08 AM PDT · by SeekAndFind · 39 replies
    Fox News ^ | 10/27/2014 | By Tanya Lewis
    Epidemics like the current Ebola outbreak in West Africa often get started when people make contact with animals carrying infectious diseases, but, paradoxically, a certain amount of human exposure to a virus at its source can actually also prevent the extensive spread of a disease, new research suggests. Finding a "sweet spot" where there is enough human contact for some people to build immunity to a virus, but in a way that does not cause a disease to spread widely, could be a key to preventing deadly diseases from becoming epidemics, researchers say. "If we're really worried about emerging infectious...
  • US government, military research program helped identify experimental Ebola treatment

    08/05/2014 7:05:15 AM PDT · by SeekAndFind · 13 replies
    Fox News ^ | 08/05/2014
    The experimental drug used to treat two American aid workers who have been infected with the Ebola virus has never been tested on humans before and was only identified earlier this year as part of an ongoing research program backed by the U.S. government and military. Dr. Kent Brantly and Nancy Writebol have each received doses of the drug, known as ZMapp, aimed at boosting the immune system's efforts to fight off Ebola and is made from antibodies produced by lab animals exposed to parts of the virus. The Associated Press reported that Writebol, 59, had received two doses of...
  • Genetic mapping triggers new hope on schizophrenia

    07/22/2014 7:01:30 AM PDT · by Olog-hai · 9 replies
    Associated Press ^ | Jul. 22, 2014 2:09 AM EDT | Seth Borenstein
    Scientists have linked more than 100 spots in our DNA to the risk of developing schizophrenia, casting light on the mystery of what makes the disease tick. Such work could eventually point to new treatments, although they are many years away. Already, the new results provide the first hard genetic evidence to bolster a theory connecting the immune system to the disease. […] The study included the genetic codes of more than 150,000 people—nearly 37,000 of them diagnosed with the disease. Researchers found 108 genetic markers for risk of getting the disease, 83 of them not previously reported. And scientists...
  • Fasting for three days can regenerate entire immune system, study finds

    06/06/2014 4:04:55 AM PDT · by Olog-hai · 70 replies
    Daily Telegraph (UK) ^ | 7:51PM BST 05 Jun 2014 | Sarah Knapton
    Fasting for as little as three days can regenerate the entire immune system, even in the elderly, scientists have found in a breakthrough described as “remarkable”. Although fasting diets have been criticized by nutritionists for being unhealthy, new research suggests starving the body kick-starts stem cells into producing new white blood cells, which fight off infection. Scientists at the University of Southern California say the discovery could be particularly beneficial for people suffering from damaged immune systems, such as cancer patients on chemotherapy. […] Scientists found that prolonged fasting also reduced the enzyme PKA, which is linked to aging and...
  • Breast implant used by 99% of women in Britain is ‘triggering new cancer’, warn scientist

    05/04/2014 11:58:02 AM PDT · by Berlin_Freeper · 66 replies
    dailymail.co.uk ^ | 3 May 2014 | Barney Calman
    A new form of cancer could be triggered by a type of breast implant popular with British women, scientists are warning. At least 150 cases of the disease, called anaplastic large cell lymphoma (ALCL) of the breast, have been reported, including a handful in Britain. Nine in 10 cases of the disease – a cancer of the immune system – have been in women who have received breast implants with a textured outer shell, according to experts.
  • Researchers find source of new lineage of immune cells

    02/13/2014 8:39:38 AM PST · by neverdem · 6 replies
    Biology News Net ^ | February 12, 2014 | NA
    The elusive progenitor cells that give rise to innate lymphoid cells—a recently discovered group of infection-fighting white blood cells—have been identified in fetal liver and adult bone marrow of mice, researchers from the University of Chicago report early online in the journal Nature. Innate lymphoid cells (ILCs) are among the first components of the immune system to confront certain pathogens. They have a critical function at mucosal barriers—locations such as the bowel or the lung—where the body comes in direct contact with the environment. Yet they went undetected by researchers studying the immune system for a century. "Scientists tend to...
  • Skin drug shows 'promising' results on type 1 diabetes

    09/22/2013 5:14:00 PM PDT · by Innovative · 4 replies
    BBC ^ | Sept 22, 2013 | BBC
    A drug that was used to treat a skin disorder has shown signs of being able to treat aspects of type 1 diabetes. A small trial on US patients suggests that alefacept helps the body produce its own insulin, which is key for people with type 1 diabetes.
  • Researchers Identify New Source of Powerful Immunity Protein

    08/05/2013 6:11:33 PM PDT · by neverdem · 10 replies
    ScienceDaily ^ | July 10, 2013 | NA
    Researchers at UT Southwestern Medical Center report the identification of a new cellular source for an important disease-fighting protein used in the body's earliest response to infection. The protein interferon-gamma (IFN-γ) keeps viruses from replicating and stimulates the immune system to produce other disease-fighting agents. Neutrophils, the newly identified cellular source of the protein, are the major component of the pus that forms around injured tissue. The researchers also report that the neutrophils appear to produce IFN-γ through a new cellular pathway independent of Toll-like receptors (TLRs): the body's early warning system for invasion by pathogens. This finding indicates that...
  • New wonder drug matches and kills all kinds of cancer — human testing starts 2014

    07/11/2013 11:38:50 AM PDT · by GrandJediMasterYoda · 93 replies
    Ny Post ^ | 7/11/13 | By MICHAEL BLAUSTEIN
    New wonder drug matches and kills all kinds of cancer — human testing starts 2014 By MICHAEL BLAUSTEIN Last Updated: 2:03 PM, July 11, 2013 Posted: 12:55 PM, July 11, 2013 Stanford researchers are on track to begin human trials of a potentially potent new weapon against cancer, and would-be participants are flooding in following the Post’s initial report on the discovery. The progress comes just two months after the groundbreaking study by Dr Irv Weissman, who developed an antibody that breaks down a cancer's defense mechanisms in the body. A protein called CD47 tells the body not to "eat"...
  • New Type 1 diabetes vaccine shows promising results

    06/27/2013 3:53:11 PM PDT · by neverdem · 4 replies
    CBS News ^ | June 27, 2013 | MICHELLE CASTILLO
    A clinical trial for a Type 1 diabetes vaccine has resulted in promising findings, suggesting there may be a future where we can prevent people from getting the disease. Researchers completed a 12-week trial on a DNA-based vaccine on 80 subjects with Type 1 diabetes. The patients were able to maintain levels of a blood-borne intermediary that can stimulate insulin production, and some subjects were able to increase levels. That suggests the cellular changes that occur in patients with Type 1 diabetes may be shut down.  "We're very excited by these results, which suggest that the immunologist's dream of shutting...
  • Type 1 diabetes vaccine hailed as 'significant step'

    06/27/2013 3:28:10 PM PDT · by CutePuppy · 14 replies
    BBC ^ | June 26, 2013 | BBC
    It may be possible to reverse type 1 diabetes by training a patient's own immune system to stop attacking their body, an early trial suggests. Their immune system destroys the cells that make insulin, the hormone needed to control blood sugar levels. A study in 80 patients, published in the journal Science Translational Medicine, showed a vaccine could retrain their immune system. Experts described the results as a "significant step". Normally a vaccine teaches the immune system to attack bacteria or viruses that cause disease, such as the polio virus. Researchers at the Stanford University Medical Centre used a vaccine...
  • Protesters across globe rally against Monsanto - GMO

    05/26/2013 8:26:53 AM PDT · by opentalk · 144 replies
    Associates Press ^ | May 25, 2013
    LOS ANGELES (AP) — Protesters rallied in dozens of cities Saturday as part of a global protest against seed giant Monsanto and the genetically modified food it produces, organizers said. Organizers said "March Against Monsanto" protests were held in 52 countries and 436 cities, including Los Angeles where demonstrators waved signs that read "Real Food 4 Real People" and "Label GMOs, It's Our Right to Know."… The U.S. Senate this week overwhelmingly rejected a bill that would allow states to require labeling of genetically modified foods.
  • Missing parts? Salamander regeneration secret revealed

    05/20/2013 7:20:34 PM PDT · by Redcitizen · 53 replies
    Live science ^ | 5-20-2013 | Tanya Lewis
    Salamanders can regrow entire limbs and regenerate parts of major organs, an ability that relies on their immune systems, research now shows. A study of the axolotl, an aquatic salamander, reveals that immune cells called macrophages are critical in the early stages of regenerating lost limbs. Wiping out these cells permanently prevented regeneration and led to tissue scarring. The findings hint at possible strategies for tissue repair in humans.
  • Viruses With Immune System Found; Indicates They Are Living Creatures

    03/01/2013 8:51:09 PM PST · by Olog-hai · 39 replies
    Science World Report ^ | Feb 28, 2013 01:21 PM EST | Mark Hoffman
    Astonishingly, a virus that exclusively attacks the cholera bacteria was caught having stolen the functional immune system of bacteria—and is even using it against its bacterial host. A study published this week in the journal Nature provides the first evidence that this type of virus, a bacteriophage (“phage” for short), can acquire a wholly functional and adaptive immune system, something that was thought to be a too complex task for the very basic and “dumb” virus. The phage used the stolen immune system to disable—and thus defeat—the cholera bacteria’s defense system against phages. Therefore, the phage can kill the cholera...
  • Scientists Discover Children’s Cells Living in Mothers’ Brains

    12/07/2012 1:50:17 PM PST · by NYer · 66 replies
    Scientific American ^ | December 4, 2012 | Robert Martone
    The link between a mother and child is profound, and new research suggests a physical connection even deeper than anyone thought. The profound psychological and physical bonds shared by the mother and her child begin during gestation when the mother is everything for the developing fetus, supplying warmth and sustenance, while her heartbeat provides a soothing constant rhythm. The physical connection between mother and fetus is provided by the placenta, an organ, built of cells from both the mother and fetus, which serves as a conduit for the exchange of nutrients, gasses, and wastes. Cells may migrate through the placenta...
  • Breakthrough nanoparticle halts multiple sclerosis

    11/21/2012 11:41:34 PM PST · by LibWhacker · 21 replies
    EurekAlert! ^ | 11/18/12 | Marla Paul
    New nanotechnology can be used for Type 1 diabetes, food allergies and asthma New nanoparticle tricks and resets immune system in mice with MSFirst MS approach that doesn't suppress immune systemClinical trial for MS patients shows why nanoparticle is best optionNanoparticle now being tested in Type 1 diabetes and asthma CHICAGO --- In a breakthrough for nanotechnology and multiple sclerosis, a biodegradable nanoparticle turns out to be the perfect vehicle to stealthily deliver an antigen that tricks the immune system into stopping its attack on myelin and halt a model of relapsing remitting multiple sclerosis (MS) in mice, according...
  • Vitamin B3 May Help Kill Superbugs

    10/07/2012 11:17:41 AM PDT · by CutePuppy · 43 replies
    Medical News Today (MNT) ^ | August 25, 2012 | Catharine Paddock, PhD
    Nicotinamide, commonly known as vitamin B3, may help the innate immune system kill antibiotic-resistant staph bacteria, the so-called "superbugs". In lab work done with mice and human blood, researchers found high doses of the vitamin increased the ability of immune cells to kill the bacteria by 1,000 times.The discovery opens the door to a new arsenal of tools for dealing with antibiotic-resistant bacterial infections, such as those caused by methicillin-resistant S. aureus or MRSA, that have killed thousands of people around the world. They are increasing in hospitals and nursing homes, and also rising in prisons, among athletes, people in...
  • Bacteria-immune system 'fight' can lead to chronic diseases, study suggests

    08/04/2012 7:16:59 PM PDT · by neverdem · 31 replies
    Biology News Net ^ | August 2, 2012 | NA
    Results from a study conducted at Georgia State University suggest that a "fight" between bacteria normally living in the intestines and the immune system, kicked off by another type of bacteria, may be linked to two types of chronic disease. The study suggests that the "fight" continues after the instigator bacteria have been cleared by the body, according to Andrew Gewirtz, professor of biology at the GSU Center for Inflammation, Immunity and Infection. That fight can result in metabolic syndrome, an important factor in obesity, or inflammatory bowel disease (IBD). The results were published in the journal Cell Host &...
  • Synthetic protein kick-starts the immune system to prevent all strains of the flu

    07/09/2012 10:44:45 AM PDT · by CutePuppy · 7 replies
    Gizmag / Dan Diego State University ^ | July 09, 2012 | Darren Quick
    We've seen promising moves towards developing a universal or near-universal influenza vaccine, but researchers at the Donald P. Shiley BioScience Center have taken a different tack to ward of the crafty virus. Although the flu virus actively keeps the immune system from detecting it for a few days, giving it time to gain a foothold, the researchers have found that a powerful synthetic protein, known as EP67, can kick start the immune system so that it reacts almost immediately to all strains of the virus. Previously, EP67 had primarily been used to help activate the immune response by being added...
  • Why that spare tyre could be GOOD for your health (may help to regulate your immune system)

    06/07/2012 7:05:31 AM PDT · by smokingfrog · 17 replies
    dailymail.co.uk ^ | 6 June 2012 | Emma Reynolds
    Dieters desperate to get rid of that spare tyre can finally let it all hang out. That muffin-top could actually help to regulate the immune system and provide a first line of defence against infection and viruses. A hard-to-shift beer belly could even help regenerate damaged tissue after an injury. The fatty membrane in the belly, called the omentum, has never seemed to serve much of a purpose. But now the research by scientists in Chicago has shown it can be a health benefit - and their discovery could lead to the development of new drugs for organ transplant patients...
  • 'Danger Signals' From Dying Cells Jolt Immune System Into Action

    02/11/2012 8:52:11 PM PST · by neverdem · 7 replies
    Science News ^ | 9 February 2012 | Mitch Leslie
    Enlarge Image Looking for trouble. Cytotoxic T cells like this one might react to distress signals released by dying or damaged body cells. Credit: Eye of Science/Photo Researchers Inc. In 1994, Polly Matzinger came up with a controversial idea. The immunologist at the U.S. National Institute of Allergy and Infectious Diseases proposed that alarm signals released from injured and dying cells can kick our immune system into high gear even when no microbial threat is evident. Many of Matzinger's colleagues ridiculed her "danger hypothesis," and it has remained divisive ever since. But a new study lends strong support to the...
  • Rabies vaccine to be dropped from the air

    01/22/2012 3:52:05 PM PST · by Libertynotfree · 18 replies
    Natural Remedies Matter ^ | Jan22,2012 | Libertynotfree
    The Texas Department of State Health Services will drop vaccines from the air Wednesday. It's part of the annual effort to protect people and livestock from rabies.
  • Self-regulation of the immune system suppresses defense against cancer

    12/21/2011 8:17:19 AM PST · by decimon · 16 replies
    It is vital that the body's own immune system does not overreact. If its key players, the helper T cells, get out of control, this can lead to autoimmune diseases or allergies. An immune system overreaction against infectious agents may even directly damage organs and tissues. Immune cells called regulatory T cells ("Tregs") ensure that immune responses take place in a coordinated manner: They downregulate the dividing activity of helper T cells and reduce their production of immune mediators. "This happens through direct contact between regulatory cell and helper cell," says Prof. Peter Krammer of DKFZ. "But we didn't know...
  • Source found for immune system effects on learning, memory

    10/26/2011 3:52:34 PM PDT · by decimon · 10 replies
    Duke University ^ | October 26, 2011
    DURHAM, N.C. - Immune system cells of the brain, which scavenge pathogens and damaged neurons, are also key players in memory and learning, according to new research by Duke neuroscientists. Earlier studies by Staci Bilbo, an assistant professor in psychology & neuroscience, had shown that laboratory rats experiencing an infection at an early age have an aggressive immune response to subsequent infections, which also harms their learning and memory. In a study published in the Oct. 26 Journal of Neuroscience, Bilbo's team identifies the source of the learning difficulties and traces it back to the immune system itself. The researchers...
  • Many cancer cells found to have an 'eat me' signal in Stanford study

    12/22/2010 2:36:19 PM PST · by decimon · 13 replies · 2+ views
    Stanford University Medical Center ^ | December 22, 2010 | Unknown
    STANFORD, Calif. — Researchers at the Stanford University School of Medicine have discovered that many cancer cells carry the seeds of their own destruction — a protein on the cell surface that signals circulating immune cells to engulf and digest them. On cancer cells, this "eat me" signal is counteracted by a separate "don't eat me" signal that was described in an earlier study. The two discoveries may lead to better cancer therapies, and also solve a mystery about why a previously reported cancer therapy is not more toxic. In the study to be published Dec. 22 in Science Translational...
  • Vaccine boosts your immune system (inflammation. MS, RA...)

    12/14/2010 7:16:24 AM PST · by decimon · 10 replies
    University of Copenhagen ^ | December 14, 2010 | Unknown
    Researchers at BRIC, the University of Copenhagen, have discovered that the human body can create its own vaccine, which boosts the immune system and helps prevent chronic inflammatory diseases. The researchers’ results have just been published in the prestigious Journal of Clinical Investigation and may have significant consequences in developing new medicine.Researchers at the Biotech Research and Innovation Centre (BRIC) at the University of Copenhagen have discovered a protein normally found in the body that can act to prevent chronic tissue inflammation. When administered in the form of a therapeutic vaccine it is able to effectively prevent and treat a...
  • They shall not pass! (Fighting infections with blood clots)

    08/03/2010 9:07:17 AM PDT · by decimon · 6 replies · 17+ views
    The adaptive immune system can recognize and respond specifically to particular infectious agents. But the first line of defence against pathogens is the so-called innate immune system. This system reacts to invaders by initiating unspecific inflammatory responses which attract various types of specialized cells such as neutrophils to the site of the incursion. "Neutrophils secrete proteins that inactivate bacteria and other microbes", says LMU researcher Professor Bernd Engelmann, "but they also play a role in blood coagulation." A research team led by Engelmann has now shown that the processes of blood coagulation and antimicrobial defence are functionally coupled -- and...
  • An Apple a Day? Study Shows Soluble Fiber Boosts Immune System

    03/09/2010 12:34:50 AM PST · by SmartInsight · 12 replies · 112+ views
    Science Daily ^ | March 9, 2010 | Science Daily
    A new University of Illinois study touts the benefits of soluble fiber -- found in oats, apples, and nuts, for starters -- saying that it reduces the inflammation associated with obesity-related diseases and strengthens the immune system. This happens because soluble fiber causes increased production of an anti-inflammatory protein called interleukin-4, he said. Scientists have long known that obesity is linked to inflammatory conditions, such as diabetes and heart disease. Yet, in a recent study, the U of I scientists demonstrated that fat tissue produces hormones that appear to compensate for this inflammation. "There are significant anti-inflammatory components in fat...
  • Antibody Variation Is Not Evolution

    01/21/2009 8:07:52 AM PST · by GodGunsGuts · 155 replies · 1,455+ views
    ICR ^ | January 21, 2009 | Brian Thomas, M.S.
    Antibody Variation Is Not Evolution by Brian Thomas, M.S.* Researchers at Wayne State University in Michigan have uncovered a key step in the formation of antibodies. It was already known that the immune system generates a variety of antibodies in response to an invading pathogen. The recent study discovered that many of the necessary antibody variations are produced when a cellular copying procedure is slowed down.1 Antibodies are manufactured with variations on one end, the “light chain” end. When a specific light chain variation is found that locks onto the outermost molecules of the invading bacterium or virus, the antibody...
  • Chimps and People Show 'Architectural' Genetic Design

    11/16/2008 8:38:56 AM PST · by GodGunsGuts · 96 replies · 1,286+ views
    ICR ^ | Brian Thomas, M.S.
    An international team of geneticists recently set out to explore in more detail the evolutionary relationship between humans and chimpanzees. Despite their assumption that man and chimp share a common ancestor, their findings are actually more consistent with the creation model...
  • Researchers Use Adult Stem Cells to Replace Immune Systems in Mice

    11/25/2007 7:50:12 PM PST · by Coleus · 3 replies · 70+ views
    lifenews ^ | November 23, 2007 | Steven Ertelt
    Scientists at Stanford University in California have found another success story with the use of adult stem cells. Their studies of replacing the immune systems in mice come on the heels of a major announcement by scientists in Japan and Wisconsin that they were able to get adult stem cells to revert to their embryonic state. In this new advance, the Stanford team said it found a method of transplanting blood-forming adult stem cells into the bone marrow of mice and replacing their failed immune systems. Should scientists be able to replicate the studies in humans, it could provide a...
  • Iran unveils Aids herbal remedy

    02/03/2007 5:49:04 PM PST · by Lorianne · 8 replies · 702+ views
    Tehran - Iranian health minister Kamran Baqeri Lankarani announced on Saturday that Iran's scientists have produced a herbal medicine to boost the human body's immune system against HIV/Aids. "The herbal-based medication, called Imod, serves to control the Aids virus and increases the body's immunity," Baqeri Lankarani was quoted as saying on state radio by the official news agency IRNA. "It is not a medication to kill the virus, it rather can be used besides other anti-retroviral drugs." The drug was made after five years' of research and had been tested on 200 patients, said IRNA. It said the drug was...
  • Role of the nervous system in regulating ADULT stem cells discovered

    09/03/2006 10:15:05 PM PDT · by Coleus · 3 replies · 285+ views
    EurekAlert ^ | 01.26.06 | Paul Frenette
    Role of the nervous system in regulating stem cells discoveredStudy led by Mount Sinai School of Medicine may provide new hope for cancer patients and others with compromised immune systems  New study by Mount Sinai researchers may lead to improved stem cell therapies for patients with compromised immune systems due to intensive cancer therapy or autoimmune disease. The study is published in this week's issue of Cell.  A group, led by Paul Frenette, Associate Professor of Medicine at Mount Sinai School of Medicine, found that the sympathetic--or "fight or flight" branch--of the nervous system plays a critical role in coaxing...
  • Northwestern U. study uses ADULT stem cells to strengthen immune system

    09/02/2006 9:37:18 PM PDT · by Coleus · 3 replies · 293+ views
    The Daily Colonial, ^ | 02.07.06 | Joanna Allerhand
    EVANSTON, Ill. -- A recent Northwestern University study found that a new treatment using stem cells might extend the lives of patients with lupus. Stem cell treatments could help patients with severe cases who have not responded to other options, according to a study published in the Feb. 1 issue of The Journal of the American Medical Association. Lupus is a disease that causes patients' immune systems to become unable to distinguish between foreign substances and normal parts of the body. This causes the immune system to attack the patient's own cells and tissues instead of protecting them. Researchers, including...
  • Human "Embryonic" stem cells trigger immune attack, may be useless for therapeutic applications

    01/24/2005 8:24:51 PM PST · by Coleus · 23 replies · 3,370+ views
    Nature ^ | 01.24.05
    Human stem cells trigger immune attackJessica Ebert Doubt cast on therapeutic use of embryonic cell lines. Exposure to molecules from animals might have made human stem cells unacceptable.© ANDREW LEONARD / SCIENCE PHOTO LIBRARY Most human embryonic stem-cell lines, including those available to federally funded researchers in the United States, may be useless for therapeutic applications. The body's immune defences would probably attack the cells, say US researchers. When embryonic stem cells are added to serum from human blood, antibodies stick to the cells. This suggests the cells are seen as foreign, and that transplanting them into the body would...
  • Portable Dipstick to Measure Caffeine

    05/11/2006 11:25:54 PM PDT · by anymouse · 17 replies · 731+ views
    LiveScience ^ | 5/12/06
    While it might seem strange scientists would think to develop dipsticks to measure caffeine, how they're making them is even weirder. How about three llamas and two camels. The animals, both called camelids by scientists, are among the few whose immune systems produce antibodies that are not destroyed by hot coffee. We did not look into who figured that out or why. Anyway, the researchers injected proteins linked to caffeine into the five beasts to elicit an immune response. The animals produced antibodies in their blood that were reactive to caffeine. Then in the lab, these antibodies were found to...
  • Bird Flu Redux

    11/27/2005 12:51:39 PM PST · by crystal wind · 1 replies · 222+ views
    Baseline of Health Newsletter ^ | 9/26/2005 | Jon Barron
    ...Don't count on having access to a reliable vaccine. First of all, no vaccine has proven effective at stopping even the current strain of avian flu, let alone the eventual mutation that truly threatens humans. Yes, it will be a related strain, but as experience has shown year after year with flu vaccines, in most cases, related is not close enough. If you don't have a vaccine for the actual strain that is causing the pandemic, the odds are not good that a "related" vaccine will help -- and no one can develop the proper vaccine until that final strain...
  • Aids may help spread of bird flu(good breeding ground for eventual killer mutant)

    11/17/2005 4:51:06 PM PST · by TigerLikesRooster · 51 replies · 826+ views
    BBC News ^ | 11/17/05 | Roland Pease
    Aids may help spread of bird flu   By Roland Pease BBC science correspondent   It is feared bird flu will jump from human to human Bird flu could readily mutate into a pandemic form if it infects people with Aids, a flu expert has warned.Dr Robert Webster said it was possible people with Aids, who have depressed immune systems, could harbour the deadly H5N1 strain of bird flu. This would potentially give it the opportunity to become better adapted - and more dangerous - to humans. Dr Webster was speaking at a conference organised by the Council on...
  • Resveratrol may have anti-flu activity

    05/25/2005 10:01:48 PM PDT · by Coleus · 20 replies · 667+ views
    ABC News & Reuters ^ | May 24, 2005
    May 24, 2005 — NEW YORK (Reuters Health) - Resveratrol, a chemical found in red grapes, blocks replication of the influenza virus in cell culture and in animals, Italian researchers report. "Resveratrol merits further investigation as a potential weapon for combating the growing threat of influenza," Dr. Anna Teresa Palamara of the Institute of Microbiology in Rome and colleagues conclude. In cell culture experiments, resveratrol prevented influenza from replicating. Study: Cigarette Smoke May Harm Fertility Big Guns: When Cops Use Steroids Study: Bypass Better for Clogged Arteries Resveratrol treatment had the greatest effect when administered 3 hours after exposure to...
  • Fastest-evolving genes in humans and chimps revealed

    05/03/2005 11:40:39 AM PDT · by LibWhacker · 18 replies · 675+ views
    New Scientist ^ | 5/1/05 | Jennifer Viegas
    The most comprehensive study to date exploring the genetic divergence of humans and chimpanzees has revealed that the genes most favoured by natural selection are those associated with immunity, tumour suppression, and programmed cell death. These genes show signs of positive natural selection in both branches of the evolutionary tree and are changing more swiftly than would be expected through random mutation alone. Lead scientist Rasmus Nielsen and colleagues at the University of Copenhagen, Denmark, examined the 13,731 chimp genes that have equivalent genes with known functions in humans. Research in 2003 revealed that genes involved with smell, hearing, digestion,...
  • Scientists Explore Meth's Role in Immune System

    02/22/2005 8:55:44 PM PST · by neverdem · 29 replies · 1,075+ views
    NY Times ^ | February 22, 2005 | ANAHAD O'CONNOR
    Reports that a New York man may be carrying a rare and possibly virulent strain of H.I.V. have focused new attention on the biological relationship between the virus and methamphetamine, a drug that has become increasingly entwined in the spread of sexually transmitted diseases in cities from San Francisco to Miami to New York. Although methamphetamine, often called crystal meth or speed, is most troubling to health officials because of its role in blotting out inhibitions and fueling high-risk sexual behavior, experts say they are also grappling with mounting evidence that the drug by itself may increase a person's susceptibility...
  • Abortion argument unravels

    11/16/2004 2:30:51 PM PST · by Tamar1973 · 35 replies · 1,725+ views
    Answers in Genesis ^ | November 16, 2004 | Alex Williams
    While the demand for abortion grows,1 so does the scientific case against the arguments often used to support it. Recent powerful evidence comes from immunology. Half a century ago, when the amazing mechanism of the human immune system was first being uncovered, Nobel prize-winning biologist Sir Peter Medawar made a significant comment. He declared that the survival of the genetically different child within a mother's womb contradicted the immunological laws that were thwarting their attempts at tissue transplantation.2 The immune system normally detects the presence of any "foreign" tissue in the body and it immediately sets up a defence against it (primarily...
  • Immune systems evolved more than once

    07/08/2004 10:21:49 AM PDT · by PatrickHenry · 21 replies · 722+ views
    Nature ^ | 07 July 2004 | Laura Nelson
    When discussing the attributes that make mammals special, a sophisticated immune response generally comes close to the top of the list. But now it seems that we're not so unique after all. Researchers have found that fish-like creatures called lampreys have evolved their own system, using building blocks that are completely unrelated to the antibodies found in mammals. The discovery opens up a new world for immunologists, who had previously assumed there was only one way of doing things – ours. "The result blew my mind," says Chris Amemiya, molecular geneticist at the Benaroya Research Institute in Seattle, and an...
  • Engineered pig organs survive in monkeys

    12/08/2003 7:13:18 AM PST · by PatrickHenry · 27 replies · 543+ views
    Nature Magazine ^ | 08 December 2003 | HELEN PEARSON
    Genetically modified pig kidneys have survived long after being transplanted into baboons. Researchers hope that this early success may pave the way for animal-to-human organ transplants. The pigs used in the experiment were engineered to have human-friendly organs in 2002. They lack a key sugar molecule that normally prompts the human and monkey immune system to launch an aggressive and fatal attack on foreign tissues. Now David Sachs, of Massachusetts General Hospital in Cambridge, and his team have transplanted kidneys from the genetically modified pigs into eight baboons. The new organs enabled the animals to survive for up to 81...
  • Fed Health Chief: I'll Skip Smallpox Vaccine

    12/18/2002 5:56:04 PM PST · by 2sheep · 227 replies · 1,944+ views
    NY Post ^ | 12/16/02 | AP
    <p>WASHINGTON - Health and Human Services Secretary Tommy Thompson said yesterday he does not plan to be inoculated with the smallpox vaccine and recommends that other Cabinet members not request the inoculation either.</p> <p>"I do not believe it is necessary or should be taking place," he said.</p>