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Tag: "background" at biology news

A new mechanism of regulating RNA degradation

...is to recognize them amidst the incredibly complex background of cellular machinery. Now, in a paper in the January 28th issue of Cell, Lynne E. Maquat, Ph.D., professor of Biochemistry and Biophysics at the University of Rochester Medical Center, and her team have identified a novel pathway for RNA degradatio...

FDA Approves Human Hookworm Vaccine for Phase I Safety Trials

...is to recognize them amidst the incredibly complex background of cellular machinery. Now, in a paper in the January 28th issue of Cell, Lynne E. Maquat, Ph.D., professor of Biochemistry and Biophysics at the University of Rochester Medical Center, and her team have identified a novel pathway for RNA degradatio...

Whole genome fine map of rice completed

...r the maternal strain "PeiAi 64" (its main genetic background being Japonica, as well as a mixture of Indica and Japonica genes ). This would further help discovering distribution of the hybrid genes in F1 and the changes of physiological traits, thus revealing the source of the hybridization advantage in hybri...

Great White shark evolution debate involves WSU Lake Campus geology professor

... the study of prehistoric life forms. His academic background also includes master's degrees in zoology and geology and a bachelor's degree in physics and chemistry. "My work looks at large scale changes of life over time and how things like mass extinction affect the course of life," he said. Ciampaglio discu...

50-year-old Mystery Solved: Protein Tags Regulate Key Ion Channel

...dating back to the 1950s: How do cells control the background movement of potassium ions across the cell membran...s team discovered the type of ion channel known as background (or leak) potassium channels in yeast cells in 1995 and in fruit flies in 1996. Although potassium l...

Survey finds silver contamination in North Pacific waters

...r concentrations 50 times greater than the natural background level. Though still well below levels that would b... cruise in the Atlantic Ocean. Because the natural background level is so low, scientists may be able to use silver as a tracer element for tracking the fate of i...

Single-donor Islet Transplantation Procedure Shows Promise For Patients With Type 1 Diabetes

...etes remains a therapeutic challenge, according to background information in the article. The success rate of islet (cells that produce insulin to control blood sugar levels) transplants has recently been increased markedly by transplanting a higher number of islets prepared from 2 to 4 donor pancreases. Howeve...

Researchers Find New Technique To Identify Fetal Genetic Material From Amniotic Fluid

...ssue on medical applications of biotechnology. In background information in the article, the authors write that fetal monitoring in the womb is now "limited to noninvasive methods such as measurement of uterine size or anatomic evaluation by fetal sonography. In addition, genetic analysis can be performed on a...

'EuroVacc 02' HIV Vaccine Trial Begins

...vaccines in larger clinical trials." Development background The vaccine candidates for the trial - DNA-HIV-C and NYVAC-HIV-C - were developed within the network European Vaccine Effort against HIV/AIDS. NYVAC-HIV-C (a vaccine candidate based on poxvirus) was manufactured by sanofi pasteur - the vaccine divi...

15 generations of untrained jocks, couch potatoes show big physiological adaptations

... rats ?meaning they all had the same basic genetic background ?and bred two separate lines purely on the basis of "continued selecting of untrained rats with either high- and low-running endurance." In this way, they could study the genetic role in endurance performance and oxygen delivery systems. Results of ...

Researchers develop new method for facile identification of proteins in bacterial cells

...ing a lot of time and resources on eliminating the background noise to find the signal, our method increases the signal upfront so that it stands out above the background noise. By forcing an up-regulation of enzyme expression in the bacterium of interest, our target can...

Microscopic brain imaging in the palm of your hand

..., as they return to the detector. The result is a background haze in the images, almost like viewing the sample through a cloud. It's possible to get rid of background haze and reduce the scattering using two-photon fluorescence imaging. Instead of one higher-energy p...

New mitochondrial DNA gene chip may be early cancer diagnosis tool

...alysis to detect the cancer indicators against the background of natural variation in mtDNA. The NIST Cancer Biomarker Validation and Reference Laboratory assesses cost, efficiency and reliability of potential diagnostic techniques using biomarkers before further clinical evaluation in other laboratories of th...

Hospitalizations because of chicken pox down dramatically since implementation of vaccine

...dren and adults in the United States, according to background information in the article. Before its licensure in 1995, almost everyone developed chicken pox; thus, incidence approximated the birth cohort, with about 13,000 hospitalizations and 100 to 150 deaths annually. Varicella vaccine coverage has increase...

Genomics researchers discover protein deficit that causes drug toxicity

...at 1 in 300 patients of Caucasian European genetic background has two copies of the variant gene -- specifically, a switch in 2 out of 245 amino acids -- that results in the absence of the protein needed to properly metabolize thiopurine drugs. In patients with the genetic defect, instead of helping heal, a sta...

Tiny avalanche photodiodes target bioterrorism agents

...t by the ozone layer providing for a naturally low background signal. Solar-blind APDs are intrinsically able to take advantage of this low background level, while PMTs must use external filters to become solar-blind. This makes secure battlefield com...

DDT-resistant insects have additional genetic advantage that helps resistance spread

...erefore often correspond to differences in genetic background rather and are not due to the resistance gene itself." Using DDT-resistant fruit flies (Drosophila melanogaster) in state-of-the-art controlled temperature rooms provided by the Wolfson Trust, Caroline McCart, a PhD student in the Department of Biol...

No single gene for ageing

...of cancer, because cancer and ageing have the same background causes, thinks Vilhelm Bohr, professor at the University of Baltimore in the United States. "Cancer is more frequent with age. We must understand the causes of ageing to be able to understand why we have cancer," points out Bohr during his presentat...

Divergent mating systems and parental conflict as a barrier to hybridization in flowering plants

... parties with differing interests, investment, and background interact to produce a new individual. From the former perspective, parental interests are unified (both wish to produce vigorous offspring), while the latter suggests possible conflict. This conflict can occur before or after fertilization. Before f...

Prenatal exposure to famine increases risk of schizophrenia

...al functioning and social withdrawal, according to background information in the article. It is distributed worldwide with a lifetime risk of approximately 1 percent. Schizophrenia is increasingly viewed as a neurodevelopmental disorder with environmental influences during early brain development modifying risk...

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