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Tag: "normal" at biology news

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

... detect a smell,?Frank explains. “For someone with normal sense of smell, the size of the sniff when detecting an odor is cut in half. For someone who cannot detect odor, the size of the sniff for just air and the size of the sniff for an odor are the same.? In humans, Frank says the sense of smell is one...

Leukemia drug turns mini-molecules up, cancer genes down

...ncer. The protein produced by this gene blocks the normal process of cell death and helps keep cancer cells ..., an important cancer-causing gene. (Oncogenes are normal genes that when mutated lead to cancer.) Researchers at the Ohio State University Comprehensive ...

NIDA study identifies genes that might help some people abstain from smoking

...ent protein kinase gene, which plays a key role in normal brain development. In addition to genes implicated in intracellular signaling and intercellular interactions, a number of genes involved in other processes have also been identified. While many of the genes identified through this effort make sense ...

UCLA study uncovers clues for why Graves' disease attacks the eyes

...in, IGF-1 stimulates cell growth while suppressing normal cell death. The team suspects that this mechanism...spect that the high-jacked T-cells mutiny over the normal T-cells, sparking the body’s immune reaction against itself." The next step is to identify what...

Scientists see DNA get 'sunburned' for the first time

...ly flexible molecule. This flexibility enables the normal chemical reactions that are constantly happening in the cell. Each shape-shift can require anywhere from a few to several hundred picoseconds to complete. That's fast, but this new study shows that UV damage happens many times faster. On the times...

Researchers develop marker that identifies energy-producing centers in nerve cells

...he fluorescent protein does not interfere with the normal functions of mitochondria. Neurons conduct and generate electro-chemical impulses or nerve signals, which carry information from one part of the brain to another. Mitochondria in the neurons function like cellular powerhouses to produce those impu...

Genetic fingerprints identify brain tumors' origins

... detected these distinct patterns of expression in normal glia and stem cells from these brain locations, su... "There's been a movement in recent years to link normal brain development to pediatric neuro-oncology, and these findings affirm that as a necessary approac...

Cure for cancer one step closer

... by consenting patients during the course of their normal treatment. "I encourage patients and surgeons to support the important work of the Tissue Bank because everybody can play a part in the cure. Every cell contains a clue that can make a difference to tomorrow's cancer patients," he said. Queensl...

Scientists identify pancreatic cancer stem cells

...creatic cancer stem cells without interfering with normal stem cell function." While such a drug has not ...mors. These "cancer stem cells," could derive from normal adult stem cells in organs that have mutated, or from a differentiated cell that has devolved to tak...

Biodiesel study targets cleaner air, cleaner engines

...such as soybean, sunflower and canola. During normal farm field work, a research team from Agriculture and Agri-Food Canada tested both pure and blended biodiesel, in which the renewable fuel is mixed with petroleum diesel. Evaluated blends had 5 percent and 20 percent biodiesel content, and were teste...

Heart failure: Intervention possibilities from imaging programmed cell loss

...r imaging to "see" programmed cell loss—the body's normal way of getting rid of unneeded or abnormal cells—may help in early identification of those individuals who are at risk of developing heart failure, say researchers in the April Journal of Nuclear Medicine. "Our study indicates that it is feasible to...

Gut research yields new anti-cancer approach

...ncer cells as study models because they arise from normal gut cells and share some of their qualities (e.g. normal inflammatory signals). Unlike normal gut cells, however, cancer cells do not die when removed from t...

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

...he lights were turned off, the worms resumed their normal behavior. Meanwhile, in experiments in living b...ects from exposure to the light. They resume their normal function once the exposure ends. Potential applications The most direct application of optic...

Glucose triggers brain cell death in rats after hypoglycemic coma

...om an entirely different source." He adds that the normal role of NADPH oxidase in the brain is "completely unknown." The authors also found that the degree of oxidative stress was directly dependent upon the amount of glucose given. "We think that this stems from a known link between glucose and NADPH o...

In obesity, brain becomes 'unaware' of fat

...ity cure, Cowley said. If obese individuals lacked normal leptin levels, simply restoring the hormone might ...m.? The animals that did become obese maintained normal levels of the ARH brain receptors that respond to leptin, the researchers showed, while the level of...

Scientists identify molecular cause for one form of deafness

...structure of the bundles changes dramatically when normal espin is replaced with espin mutants that cause de...gues also found that a mixture of mutant espin and normal espin would prevent the structural transition from occurring. If gene expression could turn on the p...

Study shows isolation of stem cells may lead to a treatment for hearing loss

...cal treatments to repair these hair cells vital to normal hearing. In the United States, 30% of people over...l to regenerate the damaged hair cells and restore normal hearing. The team has already begun animal studies to explore the use of cochlear stem cells in wel...

Aspirin discovery may improve cancer treatments

...early increase in the phosphorylation of eIF2Ą in normal mouse cells, but not in cells deficient in PERK. A...r, although aspirin inhibited protein synthesis in normal cells, this did not occur significantly in cells deficient in PERK. Thus PERK plays an important rol...

Study finds antibiotic resistance in poultry even when antibiotics were not used

...rchers examined levels of antibiotic resistance in normal intestinal bacteria that do not cause human illness and ?in a companion study published in May in the same journal ?also examined levels of drug resistant campylobacter bacteria, a common foodborne cause of diarrhea, cramping and abdominal pain. T...

Gene found for rare disorder may reveal new pathway in mental retardation

...ad limb abnormalities. Five of the 11 patients had normal height, whereas only 5 percent of patients with classic CdLS achieve normal height. The patients with the SMCIA and SMC3 mutations had milder versions of the distinctive facial...

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