Tag: "foreign" at biology news
New strategy for treating allergic disorders
...distinguishes between our bodys own substances and foreign
substances and begins to attack our own tissues and organs. In other cases, the immune system responds mistakenly to harmless substances, such as the house dust mite, milk products, or pollen. This inappropriate immune system reaction to contact with...
First case of successful ovarian tissue transplantation between two, nonidentical sisters
...tem would not recognise her sisters bone marrow as foreign
and reject it. The treatment was successful and Teresa was cured. However, in 1990 there were no procedures available for preserving her fertility before commencement of the treatment by, for instance, removing and freezing her eggs or ovarian tiss...
New research identifies anti-viral protein that may predict who might be at risk to develop lupus
...f from non-self, so that it preferentially attacks foreign
microbes. Interferon-alpha is normally a helpful molecule in this regard, leading the fight against invading viruses. Genes producing high levels of interferon-alpha have probably been selected over time to help fight infection. But high levels of in...
New target for HIV/AIDS drugs and vaccine discovered
...nst infection. DCs are instrumental in identifying foreign
invaders to the body and then orchestrating an immune response that ultimately removes them. NK cells are among the first cells summoned by DCs to help isolate and contain the infection until more potent reinforcements can be manufactured to eradicat...
JCI table of contents -- July 26, 2007
...of immune cells known as T cells, which respond to foreign
pathogens and are tolerant of self-antigens. The observed defect in thymocyte development resulted in reduced numbers of peripheral T cells. In addition, the thymocytes in these animals were impaired in their ability to differentiate into Th1- or Th2...
Can the tonsils influence oral HIV transmission?
... the tonsils renders this tissue more permeable to foreign
invaders, thus allowing tonsils to function in immune surveillance. However, it also renders the site more accessible to pathogens that infect immune cells. Future studies will elucidate how host vulnerability is influenced by tonsils during exposure...
Learning a second language -- Is it all in your head?
...l. -- Think you havent got the aptitude to learn a foreign
language? New research led by Northwestern Univers...vely and that could help us more effectively teach foreign
languages and possibly other skills, said Wong....
Discoverer of Sly Syndrome finds way of delivering medicine to fight rare genetic disorder
...barrier, a structure which protects the brain from foreign
substances, if it is given with the hormone epinephrine. Ever since William S. Sly, M.D., chairman of the department of biochemistry and molecular biology at Saint Louis University, discovered the rare genetic disease in 1969, he and his colleagues...
New joint replacement material developed at MGH put to first clinical use
...ne. The bodys immune system reacted against these foreign
particles, eventually destroying adjacent bone tissue and causing the implant to loosen a condition called periprosthetic osteolysis. Harris and his colleagues, working with polymer chemists from MIT, found that high doses of radiation would cros...
Genomic analysis uncovers new targets for HIV vaccine
...s a major role in the immune system by identifying foreign
invaders and tagging them for destruction. Two of the HLA genes, known as HLA-A and B, are turned off by HIV when it enters the body, which keeps the immune system from recognizing the virus as foreign. HLA-C however is not thought to be turned of...
JCI table of contents: July 19, 2007
...lls in the blood that recognize and bind self- and foreign
lipids. They rapidly release cytokines that can promote or suppress different immune responses, however the regulation of these responses is not well understood. In a study appearing online on July 19 in advance of publication in the August print iss...
Disease-free mosquito bred to disease-carrier can have all disease-free progeny
...ago, scientists announced the ability to introduce foreign
genes into the mosquito genome. A year ago, scient... Irvine have demonstrated the ability to express a foreign
gene exclusively in the female mosquito germline, a necessary prerequisite to future genetic control...
UCLA researchers show that culture influences brain cells
...rly everyone in our society, but to someone from a foreign
country, they may be incomprehensible. The opposite is true as well. Plop an American in a foreign
land and he or she may be clueless to the common gestures of that particular culture. This raises a ...
Immune system 'escape hatch' gives cancer cells traction
...ells, from binding with proteins that identify the foreign
antigens on the surface of unhealthy cancer cells,...rs measured the immune response in mice to various foreign
proteins, with and without injections of MDSCs. They found an 80 percent suppression of the immune ...
A decisive step toward a cure for insulin dependent diabetes
...ancreatic cells, which it mistakenly identifies as foreign
bodies. The identification of these genes will help advance research on two fronts: prevention and treatment. Prevention, as the findings will help develop more effective tests for newborns prone to developing type I diabetes. Treatment, as, accord...
Biodesign Institute leads innovative project to prevent cancer
... Its been well-established that cancers create foreign
proteins that the immune system can recognize, sai...lection of proteins that effectively represent any foreign
protein that a breast tumor would produce, the immune system would arm itself against breast cancer,...
VIB scientist receives major research grant
...stem often recognizes these coagulation factors as foreign
and purges them, rendering the treatment ineffective. With the research project that has been selected to receive the award, the VIB research group will seek to identify which mechanisms are involved in the purging of this coagulation factor and how ...
Satellite images reveal link between urban growth and changing rainfall patterns
...al economic zones have been established to attract foreign
investment and generate international trade. One zone, Shenzhen, was created in 1980 in the Pearl River Delta just north of Hong Kong. Seto, a Hong Kong native, witnessed the impact of this designation during successive visits with relatives in mainl...
Stressed-out African naked mole-rats may provide clues about human infertility
...bers, while the soldiers defend the colony against foreign
mole-rats and predators such as snakes. By living in large social groups with a co-operative non-breeding workforce, naked mole-rats are able to exploit an ecological niche where solitary animals or small groups would be unlikely to survive, said D...
Allergy molecule identified
...ping the immune system decide on how to respond to foreign
molecules. In the latest research, Dr Nicoletti compared the activity of dendritic cells in the gut and in the spleen of allergic and allergy resistant mice. He found that in the gut of susceptible mice, dendritic cells have stopped producing IL-12. ...
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