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Tag: "fail" at biology news

Tests for 'face-blindness' reveal disorder may not be so rare

...w or repeated. Prosopagnosics who take these tests fail to recognize repetition among the faces in the ser... complete strangers for acquaintances even as they fail to recognize family members, close friends, spouses, and even themselves. Many report difficulty wat...

Key gene controlling eye lens development identified

...cause the part of the brain called the cerebrum to fail to divide normally into two lobes. Holoprosencephaly is the most common abnormality of the development of the forebrain (front part of the brain) in humans. A few years ago the St. Jude team demonstrated that Six3 activity is critical for the normal ...

Enzyme shreds Alzheimer's protein

..., is a key part of a protective mechanism that may fail in some forms of AD. Also, they said their findings suggest that drugs to enhance CatB activity could break down amyloid deposits, counteracting one of the central pathologies of AD. Li Gan and colleagues published their findings in the September 2...

Malaria vaccine prompts victims' immune system to eliminate parasite from mosquitoes

...s then eliminate molecules the immune system would fail to detect. "With conjugate technology, NIH researchers have developed effective vaccines against such scourges as Haemophilus influenzae type B meningitis and typhoid fever," said Elias A. Zerhouni, M.D., Director of the National Institutes of Heal...

Autoimmune disease triggered if T cells miss a single protein early on

...re the immune system's T cells develop, if T cells fail to recognize just one of the body's thousands of proteins as "self." The research confirms an emerging view that autoimmunity can start in this cradle of the immune system, and not only at the sites where autoimmune diseases emerge, such as the panc...

Cigarette smoking impedes tendon-to-bone healing

... surgeons do know is that rotator cuff repairs can fail in the days and weeks after surgery. Some studies have reported short- to intermediate-term recurrence rates from 30 percent to 90 percent, depending on the size of the tear, chronic nature of the injury and the age of the patient, among other factor...

Proteins anchor memories in our brain

...re the immune system's T cells develop, if T cells fail to recognize just one of the body's thousands of proteins as "self." The research confirms an emerging view that autoimmunity can start in this cradle of the immune system, and not only at the sites where autoimmune diseases emerge, such as the panc...

Does natural selection drive the evolution of cancer?

...r understanding why current cancer therapies often fail and how radically new therapies might be devised. A review by researchers at The Wistar Institute of current research in this new field, published online November 16, will appear in the December issue of the journal Nature Reviews Cancer. "A tu...

A new target for painkillers

...es like aspirin, ibuprofen and acetaminophen often fail to relieve neuropathic pain. Morphine-like opiods such as oxycodone sometimes are used, but can cause constipation, nausea and a spaced-out feeling. Anticonvulsant drugs for epilepsy sometime are used to reduce the pain by decreasing nerve cell e...

Heavy smoking cuts women's chance of pregnancy -- even with donated oocytes

...n in the lining of the uterus of heavy smokers who fail to get pregnant and those whose have twins. But, for now, the clinical implications of the findings were clear. Tobacco makes the uterus less likely to accept an embryo. "In spite of all the noise generated about the effects of smoking in a se...

Anti-dandruff compound may help fight epilepsy

...tely “fire?in the brain. The brain’s “off?switches fail in part due to protein defects that prevent potassium from exiting nerve cells and calming them. “Channels that carry potassium,?says Min Li, Ph.D., professor of neuroscience at Johns Hopkins, “must open on cue to make sure nerve cells only fire for ...

Researchers find hepatitis A and hepatitis C attack same protein to block immune defenses

...k for many people traveling overseas, because they fail to receive the vaccine." Hepatitis A has also been the cause of large food-borne outbreaks in the U.S. in recent years, including one in Pennsylvania that caused three deaths in otherwise healthy adults....

Blame the brain for high blood pressure

...at the possibility of treating those patients that fail to respond to conventional therapy for hypertension with drugs that reduce blood vessel inflammation and increase blood flow within the brain. The future challenge will be to understand the type of inflammation within the vessels in the brain, so tha...

Major gene study uncovers secrets of leukemia

...ate into B lymphocytes. In ALL, the leukemic cells fail to differentiate normally and instead remain blocked at an immature stage of development. Locked in this state, the leukemic cells continue to proliferate, and this continual growth of leukemic cells eventually kills the child. "The new insights ...

A 'traffic light' for neurons means 'go' for improving brain research

...th neural circuits to determine why unhealthy ones fail and how healthy ones work. In patients with Parkinson's disease, for example, researchers have shown that electrical "deep brain stimulation" of cells can help patients, but they don't know precisely why. By allowing researchers to selectively sti...

Investigating the measles virus as a tool to kill multiple myeloma

...hat is, having had more than one type of treatment fail them) myeloma. They must not have had allogeneic (from another person) stem cell transplants and must either have had a prior measles infection or been vaccinated against it. In the 1970s, measles infections were observed to cause regression of p...

Improved predictions of warming-induced extinctions sought

...s "Quaternary conundrum" arises because the models fail to take adequate account of the mechanisms by which species persist in adverse conditions. Consequently, the researchers "believe that current projections of extinction rates are overestimates." A critical review of the four types of model now in com...

Man's best friend lends insight into human evolution

... also at our best animal friends. While chimps may fail to infer others' mental states when cooperating, domestic dogs do quite well at such tasks. If you point to hidden food, dogs often grasp what you are trying to tell them. Puppies even do it without prior training, indicating that it is an innate abi...

Get a whiff of this: Smell test could sniff out serious health problems

...e-related disease, flunks the sniff test? “If they fail our test, that’s a pretty good indication that there’s something wrong with their sense of smell. Maybe there’s an obstruction ?a deviated septum or polyps,?Frank says. “Perhaps the olfactory nerve has been damaged due to a head injury or a viral inf...

DOE JGI sets 'gold standard' for metagenomic data analysis

...ccuracy and a substantial number of sequences that fail to fit onto those larger fragments. On many occasions, this information is not taken into account, depriving the analysis of valuable information embedded in that sequence. The solution proposed by Mavrommatis and his colleagues was to evaluate a...

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