Tag: "subtypes" at biology news
Chromosomal Abnormalities Key For Prediting Leukemia Outcome
...netics helps determine treatment by identifyingthe subtypes
of leukemia that are likely to respond to a certain type oftherapy and those that probably wont. For example, a patient withcytogenetics that shows a good prognosis (such as damage to chromosome 16,as mentioned above) might receive today...
Newly Recognized Cell-Surface Receptor Protects Heart Tissue Against Damage
... teases apart the differing effectsof two receptor subtypes
-- A1 and A3 -- showing that activation of A3 receptorselicits sustained protection whereas activation of A1 receptors triggers ashort-lived effect. "We showed that the A3 receptor is the dominantcardioprotective receptor, and therefore should be the...
UCSF Finding Offers Insight Into Way Genes Regulate Aging And Life Span
...eliminated daf-2 activity ina wide variety of cell subtypes
and observed whether the alteration prompted acorresponding change in the mutated cells themselves or in other cells instead. What they discovered was that there was not a one-to-one correspondence,or cell "autonomous" relationship, between ...
Ribozyme Pharmaceuticals, Inc. Demonstrates Potent Activity Of A Ribozyme Targeted Against The Hepatitis C Virus
...f HCV,with at least six genotypes and more than 90 subtypes
known. HEPTAZYME® contains many novel features...is completely conserved in all known genotypes and subtypes
ofHCV, which gives HEPTAZYME® the potential to inhibit all forms of the virus. Finally, since HC...
Genetically Engineered Mice Exhibit Anxiety, Offering Insight Into Role Of Serotonin In Brain
...t the relativecontribution of the various receptor subtypes
to the regulation of particularbehaviors. "It may... "If we understood which of the serotonin receptor subtypes
contributed to theseantidepressant and anxiety-reducing effects, then we might be able to developmor...
Genetic, Familial Factors Influence ADHD, Not Necessarily Sex Of Child
... School ofMedicine in St. Louis found two distinct subtypes
of ADHD, and at least one ofthose subtypes
of ADHD affects boys and girls at practically the same rate. "The hyperactivity of young boys is eas...
Breast Milk Of Women Who Eat Lake Ontario Fish Contains High Levels Of PCBs, UB Study Finds
...els will be. "The data on individual PCB subtypes
also allow researchers to quantifyexposures to specific subtypes, all of which have different rates of eliminationfrom the body, different degrees of toxicity and, in many cases, differenttoxicological effects." The New York State Angler Coho...
HIV variant in U.S. and Europe found rare in Africa AIDS cases
...nts in the semen." "It's surprising that different subtypes
of HIV in different parts of the worldwould have different biological properties," Swanstrom said. "It's likely toimpact on features of the epidemic in ways that we don't understand right now."...
Pain drug reveals what most already know - men's and women's brains are simply different
...jor goal ofcurrent research efforts is to identify subtypes
of opioid receptors that couldprovide targets for drugs that act like morphine without its side effects. Theimmediate goal of the current study was to tease out the impact thatkappa-opioids have on the descending pathway of opioid pain relief. Three ...
Mutations not the only gene defect that leads to cancer
...fore provide a way to identify subtypes
of cancer that respond better to certain kinds of treatment. Plass said there is also preliminary evidence suggesting that resistance to chemotherapy is in some cases linked to the degree ...
UCSF finding could lead to long-sought alternative to morphine
...t delta receptors. But within each class there are subtypes
of receptors and scientists are still working to tease out the impact the individual drugs have at each receptor. There are three clinically available forms of kappa-opioids, nalbuphine, pentazocine and butorphanol. One possible explanation for the ...
Novel test pinpoints location of rare insulin disorder to guide surgical cure in newborns
...d in multicenter studies that classified the other subtypes
of HI, distinguished by gene mutations affecting enzymes and potassium channels that govern insulin secretion. The particular gene defect in the focal HI described in the current study involves mutations that affect the potassium channel in beta cell...
Fred Hutchinson Cancer Research Center to lead international team to accelerate investigation of immune-related genes
...r geographic area, such as malaria and the varying subtypes
of the human immunodeficiency virus (HIV) appearing in different parts of the world....
American Society for Microbiology news tips for November 2000
...an nations. "Overall, the high number of HIV-1 subtypes
cocirculating, the high intrasubtype diversity and the high numbers of possible recombinant viruses as well as different unclassified strains are all in agreement with an old and mature epidemic in the DRC, suggesting that this region is the epicente...
With HIV rising, UMBI tailors vaccine for Nigeria
...e." The vaccine is made up of bits of the specific subtypes
of HIV predominating Nigerian infections. He said the bits of HIV in the vaccine were identified by the first complete nationwide analysis of blood from HIV positive individuals in all 36 states of Nigeria, conducted in collaboration with the Centers...
Violence and aggression: University of New Orleans researchers offer provocative insights
...heir behavior. They lack guilt and empathy." The subtypes
show important differences that may require assorted intervention approaches. Dr. Thomas H. Ollendick, from the Child Study Center at Virginia Polytechnic Institute and State University agrees: "Subtyping of childhood aggression is critical from both...
Common genetic differences affect vulnerability to childhood leukemia, new study shows
...ar. Cancer biologists now recognize at least three subtypes
of childhood leukemia, based on different abnormal...e has been no indication that these three leukemia subtypes
develop in different ways. In one type, known as hyperdiploid, children have extra copies of chromos...
Proteins in African HIV strains interact differently with drugs
...ing genetic variations in HIV-A and HIV-C, the two subtypes
of HIV prevalent in Africa, make it harder for inh...ly HIV-A and HIV-C," says Freire. "Those different subtypes
can vary genetically from the B subtype as much as 10 to 30 percent along their entire genome, and t...
University of Pittsburgh researchers identify subtype of cell that promotes organ transplant acceptance
...pre-transplant infusion of lymphoid dendritic cell subtypes
derived from tissue such as the spleen, allowed for prolonged survival in a mouse heart transplant model, even without the use of drugs to control rejection. In contrast, myeloid dendritic cells accelerated the rejection response. "The lymphoid-deriv...
Lymphocytes in early atherogenesis
...ic contributions of Th1 cells and other lymphocyte subtypes
to this disease process....
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