Tag: "human" at biology news
Are yeast cells bringing us a step closer in treating obesity?
...he chance is great that this is also the case with human
cells. Because about 40% of today's medicines act ... proteins found in yeast have a similar variant in human
cells. This makes yeast an excellent model organism for learning more about mechanisms in humans and...
Newly discovered protein suggests novel tumorigenic pathway
...e second most commonly mutated tumor suppressor in human
tumors. This discovery suggests the possibility o...he PTEN tumor suppressor are found in a variety of human
cancers including breast and prostate cancers. Approximately 20 percent of the mutations are locate...
New method studies living bacterial cells
...hich are typically one-hundredth the diameter of a human
hair. The APS provides the nation's most brilliant X-rays for research. In these experiments, scientists exposed both planktonic and biofilm cells to elevated concentrations of hexavalent chromium. The researchers then used X-ray fluorescence micros...
Latest buzz in research: Intoxicated honey bees may clue scientists into drunken human behavior
...searchers better insight into alcohol's effects on human
behavior, a new study suggests. "Alcohol affects bees and humans in similar ways it impairs motor functioning along with learning and memory processing," said Julie Mustard, a study co-author and a postdoctoral researcher in entomology at Ohio State...
Reductions in blood oxygen levels in newborns could contribute to ADHD development
...aused by apnea (brief pauses in breathing) in some human
infants, is followed by a long-lasting reduction i...occurs in up to 85 percent of all prematurely born human
infants, and obstructive sleep apnea occurs in 3 to 27 percent of all children. Data from previous ...
Deciphering an autism mystery
...ers used neuroimaging coupled with measurements of human
behavior to investigate the autistic brain. Nicole... of the ability to discern the complex features of human
speech. Next, the children performed the same task while the scientists used M...
Pesticides may promote Parkinson's disease and exercise may offer protection
...e development of more effective treatments of this human
illness. The second most common neurodegenerative...that use dopamine as their neurotransmitter. Using human
postmortem samples, the researchers also showed that the amount of COX-2 protein was higher in patie...
Retinal stem cells can regenerate after transplant
University of Toronto researchers have shown that human
retinal stem cells transplanted into the eyes of m...ciences, documents the development of transplanted human
retinal stem cells into light-sensing photoreceptor cells and retinal pigment epithelial (RPE) cells...
Sandbagging cancer in the bloodstream
...ct on patients with metastatic cancer, because the human
immune system handles tumor cells very well if they are in the circulation. "Tumor cells don't last in the circulation," explains Cheresh. "If you can increase the dwell time that tumor cells spend in circulation by reducing their capacity to get ou...
Potential new oncogene may be missing link in cancer-causing chain
... is available online Oct. 25. "In several types of human
cancer, such as breast and colon cancer, a key cel...ooked for higher-than-normal LRP6 gene activity in human
tumor samples. "We used patient-matched tumor specimens from the Siteman Cancer Center," Bu says. "W...
New center to map DNA of key lab mice
... mouse strains important to laboratory research on human
health. This initiative, called the "Resequencing ...xposure to factors in the environment." Almost all human
genes have counterparts in mice. By examining the environmental triggers of disease in genetically ...
Bug's-eye-view of urinary tract reveals E.coli infection genes
...as a container of pooled urine from healthy female human
volunteers. The third was inside the urinary tract...s when it grew inside the urinary tract, in pooled human
urine or in nutrient broth. The researchers used the bacteria growing in Luria broth as the study's ...
Medical informatics project targets ovarian, breast cancers
...urpose of this project is to capitalize on all the human
genome data and powerful bioinformatics approaches out there," said IU cancer biologist Kenneth Nephew, who is leading one of the cancer project's four parts. "In the end, we believe our work will lead to better therapies for ovarian and breast cance...
Insects implicated in the evolution of new human infectious diseases
...ficulty controlling. In-built similarities between human
and insect immune systems also mean that any disea...ts can also act as a reservoir to 'cook up' future human
diseases. "Understanding the mechanism that the bacteria use to change their disease-causing ability...
Predicting infection risk of mosquito-borne disease
... that Smith and colleagues developed predicts that human
biting rate is highest shortly after mosquito popu...aks, typically either near breeding sites or where human
density is highest. The proportion of infectious mosquitoes, on the other hand, reflects the age of ...
Children's Hospital Boston geneticist awarded for research on muscular dystrophy
...f Human Genetics (ASHG). A pioneer in the field of human
genetics, Kunkel was honored for nearly two decade...izes substantial and far-reaching contributions to human
genetics carried out over a sustained period of scientific inquiry and productivity. According to th...
A clear view of mycobacterial infection
...erculosis, which causes tuberculosis (TB), and its human
host. One of the host's first moves against the mycobacterium is the formation of a granuloma, an aggregate of cells, which consists of macrophages and other defensive immune cells. Although granulomas are required for the elimination of the infecti...
Emory study details dolphin brain evolution for the first time
...t the observation that there is a single remaining human
lineage "pruned down from a bushier tree" has led to a popular view that several species of highly encephalized animals cannot co-exist at the same time. "However, our results show that not only do multiple highly encephalized delphinoids coexist in ...
Passage of Marin County GMO ban would encourage widespread use of harsh pesticides
...to genetic engineering have been documented in the human
population." Furthermore they found that genetically engineered foods and traditionally bred food crops present similar risks. The report can be read on the National Academies web site at http://www.nap.edu/books/0309092094/html/ . The progress o...
Almost good enough to eat
...acts." Food chain characteristics may help explain human
food taboos, say the researchers. Most of the species avoided for the ill include species high on the food chain. These fish are more likely to accumulate toxins. The prohibitions on these species may be biologically adaptive for the people, sugges...
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