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Tag: "scientists" at biology news

Scientists collaborate to assess health of global environment

For the first time, a group of scientists has accomplished the daunting task of evaluating t...Brasilia, Cairo, Nairobi and Rome. More than 2,000 scientists from 95 countries participated in the assessment and concluded that the environmental benefits that ...

Enzyme shown to help protect genomic stability

...ules that have attracted increasing attention from scientists as they move beyond sequencing the human genome to trying to better understand how DNA is managed and its activity regulated. Histones are small proteins around which DNA is coiled to create structures called nucleosomes. Compact strings of nucleosom...

BRCA1 causes ovarian cancer through indirect, biochemical route

...another, according to a team of researchers led by scientists at the USC/Norris Comprehensive Cancer Center and ...an cancer. This finding is actually good news for scientists and physicians trying to figure out new ways to treat ovarian cancer. If the cancer had arisen in th...

Scientists decipher genome of fungus that can cause life-threatening infections

...enefited animportant field of biomedical research, scientists have deciphered thegenomes of two closely related ...ngly little difference in their gene content."TIGR scientists led by primary investigator Claire M. Fraser, thePresident of TIGR, deciphered the genome of one str...

Poplar trees redirect resources in response to simulated attack

...ng plant biochemistry. Done in collaboration with scientists from Tufts University and Stony Brook University, ... drought on vital plant processes." Ferrieri says scientists trying to improve plants' resistance to environmental challenges -- or their ability to perform usef...

Purdue proves concept of using nano-materials for drug discovery

... being carried out by an interdisciplinary team of scientists and engineers who are members of a Center for Memb...more resistant to anticancer drugs. Engineers and scientists in the Purdue center are trying to find drugs that deactivate the pumps, which would make the chemot...

Scientists discover the cellular roots of graying hair

...r are asinevitable and obvious as “going gray,?yet scientists have been unableto explain the precise cause of th... diminished in proportion to theloss of color. The scientists were surprised to observe that, at thesame time and the same rate, differentiated, pigmented melanoc...

Researchers identify target for cancer drugs

For nearly a decade, scientists have been trying to fully understand a particular ...o many malignant brain and prostate cancers. While scientists have identified elements of this pathway, other key components have remained a mystery. Researchers ...

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

...r are asinevitable and obvious as “going gray,?yet scientists have been unableto explain the precise cause of th... diminished in proportion to theloss of color. The scientists were surprised to observe that, at thesame time and the same rate, differentiated, pigmented melanoc...

Scientists rid stem cell culture of key animal cells

...troversial technical barrier in stem cell biology, scientists at the WiCell Research Institute and the Universit... of the current cell lines now in use. Until now, scientists have had to grow and sustain stem cells through the tedious daily task of generating mouse feeder ce...

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

...r are asinevitable and obvious as “going gray,?yet scientists have been unableto explain the precise cause of th... diminished in proportion to theloss of color. The scientists were surprised to observe that, at thesame time and the same rate, differentiated, pigmented melanoc...

Experiments provide proof of how traveling in groups protects insects

...s was clear from partially chewed transmitters the scientists recovered, often with body parts still attached, L...s part of a larger study designed to learn whether scientists can predict and possibly change the path of massive insect bands, he said. "In the United States no...

First 'atlas' of key brain genes could speed research on cancer, neurological diseases

... some cases, develop abnormally or malfunction.The scientists say the map will accelerate research on brain tumo...parts of the brain pinned down.The map should tell scientists studying different parts of the brain,which transcription factor (TF) genes regulate the development...

New research questions basic tenet of neuron function

...h modes. However, new research by UT Southwestern scientists appearing in the Feb. 17 issue of the journal Neuron suggests that two distinct types of synaptic vesicles are responsible for the two different modes of neurotransmitter release ?one type of vesicle for spontaneous release, another vesicle associate...

Vital step in cellular migration described by UCSD medical researchers

...activity only at the rear of a crawling cell. The scientists noted that alpha4 integrins are widely expressed in neural crest cells, immune system leukocytes (such as T cells), striated and smooth muscle, and neurons. For this reason, they believe the mechanism used by alpha4 integrins to localize Rac activity...

Weill Cornell Research Reveals Secrets Of Trafficking Within Cells

... methodological roadblock. As Dr. Ryan explained, scientists have long known how to gauge the importance of par...ing technologies -- RNA interference (RNAi), where scientists cut down on protein expression by jamming the responsible gene with bits of RNA; and microscopy, whi...

Experiments provide proof of how traveling in groups protects insects

...s was clear from partially chewed transmitters the scientists recovered, often with body parts still attached, L...s part of a larger study designed to learn whether scientists can predict and possibly change the path of massive insect bands, he said. "In the United States no...

New Study from Affymetrix Laboratories Points to Changing View of How Genome Works

...f the genome that have been traditionally studied, scientists hope to discover new drug targets, new biomarkers, and a better understanding of disease mechanism. This project has been funded in whole or in part with Federal Funds from the National Cancer Institute, National Institutes of Health, under Contract...

Critical role in programmed cell death identified

...s more sporadic and harder to pinpoint. In worms, scientists know exactly which cells are dying, and when and where. During development, 1,090 cells form, but 131 of these cells die; the same cells always die at the same time and at the same place. This feature makes it possible to identify mutant worms, in wh...

Study: Soap And Water Work Best In Ridding Hands Of Disease Viruses

...ituted for, disease-causing organisms. After that, scientists had the subjects clean their hands with various agents and measured how much of the bacteria and virus remained afterwards. Sixty-two adults volunteered for and participated in the study. Investigators performed five evaluations on each of the 14 ag...

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