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Tag: "extent" at biology news

Novel technology detects human DNA mutations

... the direct detection of a particular gene and the extent to which it is normal or mutated. The technology, reported in the February 2005 (Volume 33, Number 2), issue of Nucleic Acids Research, allows detection of a SNP in an unknown genotype with a greater than 99 percent confidence threshold and can be us...

Scientists discover the cellular roots of graying hair

...ur goal is to prevent or treatmelanoma, and to the extent this research is revealing the life cyclesof melanocytes, which are the cells that become cancerous in melanoma,we would love to identify a signal that would make a melanoma cell stopgrowing.?Fisher and the report’s lead author, Emi K. Nishimura, MD,...

Fundamental Finding Yields Insight into Stem Cells, Cancer; Opens Door to Drug Discovery

...ur goal is to prevent or treatmelanoma, and to the extent this research is revealing the life cyclesof melanocytes, which are the cells that become cancerous in melanoma,we would love to identify a signal that would make a melanoma cell stopgrowing.?Fisher and the report’s lead author, Emi K. Nishimura, MD,...

Weizmann Institute scientists develop a new approach for directing treatment to metastasized prostate cancer in the bones.

...ur goal is to prevent or treatmelanoma, and to the extent this research is revealing the life cyclesof melanocytes, which are the cells that become cancerous in melanoma,we would love to identify a signal that would make a melanoma cell stopgrowing.?Fisher and the report’s lead author, Emi K. Nishimura, MD,...

PET/MRI scans may help unravel mechanisms of prenatal drug damage

...ique anatomy of fetal circulation) and to a lesser extent in the brain. "While the uptake of the tracer into the fetal brain is lower and slower than in the mother's brain, a measurable quantity of cocaine and/or its labeled metabolites does accumulate in the fetal brain, particularly in the striatum, wher...

Discovery Promises Simpler Therapy for Sickle Cell Disease

...ssels under low oxygen conditions, but to a lesser extent than normal red cells. In contrast, red cells from those with severe disease symptoms cause blood vessels to constrict when oxygen levels drop, they found, a response which would further exacerbate the oxygen deficiency. Treatment of red blood cells ...

WHO Warns Of Increased Risk Of Vector-borne Diseases In Tsunami-affected Areas

...led control measures for these. However, given the extent of destruction due to the tsunami, WHO and the Ministry of Health are concerned about the increased risk of Dengue in Aceh and are carefully monitoring the situation. Concerns for malaria remain high, too. Although there is no information to suggest ...

Are rice and wheat behind China's population boom?

...y successfully manipulating rice production to the extent that these ancient people did, in combination with millet and wheat, helps explain the foundation of China's huge population today." ...

Plant Sacrifices Cells to Fight Invaders

... inactivated, the plant was unable to regulate the extent of PCD, leading to excessive cell death throughout the plant. When a plant pathogen makes contact with its intended target, the plant cells immediately launch a set of sophisticated molecular responses. Such defense mechanisms, including PCD, are si...

U. Iowa researchers improve Huntington's disease symptoms in mice

...wn the disease-causing copy of the gene to such an extent that either disease progression is delayed or possibly even disease onset is prevented." It may even be the case that a partial reduction of toxic protein levels allows the brain cells' machinery to "catch up" with the disease-causing protein and cl...

New miniaturised chip dramatically reduces time taken for DNA analysis

...of an organism. DNA chips are limited to a certain extent because of some very specific analytical problems, such as establishing the source of microbial contamination quickly and efficiently. The new miniaturised electrochemical genosensors meet the current need for DNA to be analysed at a low cost with ea...

Depression gene may weaken mood-regulating circuit

...and the clarinet playing the same tune and to what extent might this gene account for it?'" In this case, it turned out that the amygdala, a fear processing hub deep in the brain and the cingulate, an emotion-dampening center located near the front of the brain, were playing a duet under the baton of the d...

Study shows humans have ability to track odors, much like bloodhounds

...eplicate his results for that reason, that is, the extent to which they enabled natural behavior, specifically sniffing," Sobel said. "In some studies subjects asked to localize an odor wouldn't be allowed to sniff. That's almost like studying auditory localization but having your ears plugged. We actually ...

High rates of sexually transmitted infections found in young drug users

...ction drug users we recruited, which indicates the extent of sexual risk behaviors among both of these populations. Non-injection heroin and/or crack users are rarely the target of sexual or drug risk reduction interventions. Sexually transmitted infection prevention and treatment programs need to target dr...

Millennium Ecosystem Assessment: Many of 2 billion dryland dwellers at risk as land degrades

...te the importance of its global impacts, the exact extent of desertification is unknown. Nor is it known acc...ation. "Bridging the wide gaps in determining the extent and understanding the processes of desertification are urgent requirements in order to develop polic...

Scientists devise way to measure RNA synthesis on the fly in a live cell

...lp scientists discover new drugs and learn to what extent some RNA molecules help control the blueprint of life. "The standard assumption has been that DNA encoding for proteins was the sole actor to control the blueprint for all of life," said Philippe Cluzel, an Assistant Professor in Physics at the Univ...

Lance Armstrong through a physiological lens: hard training boosts muscle power 8%

...th gross and delta efficiency improved to the same extent and also with the same time course suggests an improved efficiency of ATP turnover within muscle fibers during contraction." (ATP, or adenosine triphosphate, is a nucleotide present that serves as an energy source for many metabolic processes.) "One...

Researchers predict infinite genomes

... don't know--and apparently, we'll never know--the extent of its diversity." To interpret this infinite view of microbial genomes, Tettelin and colleagues propose describing a species by its "pan-genome": the sum of a core genome, containing genes present in all strains, and a dispensable genome, with gene...

Lands surface change on Alaska tundra creating longer, warmer summers in Arctic

...o a longer snow-free season and an increase in the extent of woody vegetation. Both of these changes increase the amount of solar radiation that goes into heating rather than being reflected back to the atmosphere. Epstein said that since the early 1960s the spring thaw in Alaska's tundra country is arriv...

Once given 'no respect,' cells' tiny RNAS take driver's seat

..., microRNAs' best-known function is to control the extent to which other genes can be used to make proteins,... of the genes in the human genome, controlling the extent to which they are used to make proteins. Myc also is faulty and overactive in many human cancer cell...

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(Date:4/20/2014)... the body,s master cells demonstrate a bizarre property ... a study published today from scientists at the University ... is one which may have application as wide-ranging as ... stretched will contract. For example, if one pulls on ... The opposite is also true: squeeze a material and ...
(Date:4/20/2014)... to treat lung, breast and pancreatic cancers also promote ... University of California, San Diego School of Medicine have ... surface of drug-resistant tumors that appears responsible for inducing ... cancer cells. , The findings, published in the ... Biology , may point to new therapeutic opportunities for ...
(Date:4/20/2014)... Although doctors have long known that people with Down ... leukemia (ALL) during childhood, they haven,t been able to ... Institute investigators has uncovered a connection between the two ... the journal Nature Genetics , the researchers track ... abnormality in Down syndrome to the cellular havoc that ...
Breaking Biology News(10 mins):Bulletproof nuclei? Stem cells exhibit unusual absorption property 2Cancer stem cells linked to drug resistance 2Dana-Farber researchers uncover link between Down syndrome and leukemia 2Dana-Farber researchers uncover link between Down syndrome and leukemia 3
(Date:4/18/2014)... a brain-related discovery that could revolutionize doctors, perception ... opens up the possibility that environmental and/or genetic ... activity that the researchers have identified as helping ... Neuroscience has just published a paper about ... of psychology and his doctoral student John Gaspar, ...
(Date:4/18/2014)... discovery by Northwestern Medicine scientists could lead to potential ... in people with scleroderma. , Fibrosis, or scarring, ... of the skin and lungs can lead to serious ... concept for new therapeutic options centers on findings made ... who identified the role that a specific protein plays ...
(Date:4/17/2014)... specifically associated with the risk of a difficult-to-diagnose ... of all breast cancer cases. , The largest ... invasive lobular carcinoma, gives researchers important clues to ... breast cancer, which can be missed through screening. ... journal PloS Genetics , was co-led by ...
(Date:4/17/2014)... PLOS Pathogens , children who live in regions of ... immune response to infection with malaria parasites that may ... and illness and partially control the growth of malaria ... develop future interventions that prevent or mitigate the disease ... 200 million cases of malaria occur worldwide, resulting in ...
(Date:4/17/2014)... 2014) Two recent papers by a University ... may help scientists develop treatments or vaccines for ... encephalitis and other disease-causing flaviviruses. , Jeffrey S. ... genetics at the School of Medicine and an ... Institute, and colleagues recently published articles in the ...
Breaking Medicine News(10 mins):Health News:Scientists discover brain's anti-distraction system 2Health News:New clues on tissue scarring in scleroderma 2Health News:First genetic link discovered to difficult-to-diagnose breast cancer sub-type 2Health News:First genetic link discovered to difficult-to-diagnose breast cancer sub-type 3Health News:Study sheds light on how the immune system protects children from malaria 2Health News:CU researchers discover target for treating dengue fever 2
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