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Tag: "permit" at biology news

Manipulating single cell receptor alters animal behavior

...l strides in molecular biology and technology that permit scientists to examine exactly how cells function at the molecular level. Daniels explains that the kidneys and lungs produce enzymes that eventually provoke production of angiotensin. It previously was known that angiotensin has robust behavioral ...

There's something fishy about human brain evolution

... higher nutrient density. My hypothesis is that to permit the brain to start to increase in size, the fittest early humans were those with the fattest infants," says Dr. Cunnane, author of the book Survival of the Fattest, published in 2005. Unlike the prehistoric savannahs or forests, argues Dr. Cunnane, ...

New journal article urges use of animal serum-free media for growing live cells

...etal calf without anesthesia. Recent breakthroughs permit the growth of human cells in a medium free of animal serum, enabling scientists and researchers to make cell culture safer and more humane. "Scientists have access to humane and scientifically superior alternatives, so now is the time to completely...

Birth defects: 8 million annually worldwide

...alence," says Prof. Modell. The data, however, do permit broad comparison of specific birth defects across regions and among countries of different income level, Dr. Howson says. "Such comparisons show that the highest birth defects prevalence is found among the world's poorest countries, whereas many of ...

RNA splicing occurs in nerve-cell dendrites

...l splicing, and subsequent protein translation may permit exquisitely sensitive control of these cellular functions. "The regulation and timing of the expression of proteins is what makes the central nervous system function," says Eberwine. The diversity and redundancy of the nervous-system proteins m...

From one cell, many possible cures

...one marrow to be grown in sufficient quantities to permit far more research -- and allow faster growth of tissues that can be transplanted into patients. Teng Ma, an assistant professor of chemical and biomedical engineering at the Florida A&M University-FSU College of Engineering, and colleagues have ...

Cord blood cells may widen treatment window for stroke

...programmed cell death. "This delayed death would permit more time to deliver neuron-sparing treatments than originally thought," Dr. Willing said. The USF researchers continue to investigate the ways cord blood cells aid stroke recovery in animals, and will begin a study to determine the timing of brain...

Marathon of nano-sprinters

...ule experiments and biomimetic model systems which permit the study of molecular motors outside cells in a systematic fashion. One example is the bead assay, where filaments are immobilized on a surface. Molecular motors pull latex beads along these filaments, and the movement of the beads is observed under...

Stem cells' electric abilities might help their safe clinical use

.... These ion channels act like electrical wires and permit ESCs, versatile cells that possess the unique ability to become all cell types of the body, to conduct and pass along electric currents. If researchers could selectively block some of these channels in implanted cells, derived from stem cells, they ...

Research Permits First-Ever Visualization of Psychological Stress in the Human Brain

... working memory and goal-oriented behavior -- that permit humans to adapt to environmental challenges and threats. "The message from this study is that while stress may be useful in increasing focus, chronic stress could also be detrimental to mental health," concludes Jiongjiong Wang, PhD, Assistant Profes...

Past illegal blood donation in China linked to hepatitis C virus infection

... blood and reinfused compatible red blood cells to permit more frequent donations. Although government action has markedly curtailed such practices since the late 1990s, blood collection and banking methods in such settings still need to be monitored and improved, the article noted. Researchers from the Un...

Chernobyl: The true scale of the accident

...me imperfections in the shelter itself and did not permit gathering complete data on the stability of the damaged unit. Also, some structural parts of the shelter have corroded in the past two decades. The main potential hazard posed by the shelter is the possible collapse of its top structures and the rele...

U-M scientists say fused genes trigger the development of prostate cancer

...of each chromosome -- so-called haplotypes -- will permit more accurate study of genetic differences and their consequences for medical research and the study of evolution. Experimental methods for deriving these haplotypes are expensive and time-consuming. But now experts in bioinformatics at two Califor...

California computer scientists double volume of data in NIH biotech repository

...of each chromosome -- so-called haplotypes -- will permit more accurate study of genetic differences and their consequences for medical research and the study of evolution. Experimental methods for deriving these haplotypes are expensive and time-consuming. But now experts in bioinformatics at two Califor...

Drug resistant avian influenza viruses more common in Southeast Asia than North America

...e International Society for Infectious Diseases to permit rapid and accurate monitoring of infectious disease outbreaks globally; and to serve as a central location for news, updates, and discussions of infectious disease outbreaks that threaten humans. For example, a ProMED transmission on July 6, 2005 not...

NASA satellite data provides rapid analysis of Amazon deforestation

...g finding of this study is that it shows MODIS can permit regional analyses of land cover in a matter of days, a substantial reduction in effort in comparison to the months now required with Landsat," said Douglas Morton, scientist at the University of Maryland-College Park and lead author of the new study....

MSKCC researchers uncover structure of key protein complex in cells

... nucleus with the cytoplasm beyond. These conduits permit the transfer of information both to and from the nucleus, and are vital to proper cell function. "The next step in this research is to probe the importance of the contacts observed in our structure with the biochemical activities and effects on the ...

Columbia scientists develop cancer terminator viruses

...nt the next generation of therapeutic viruses that permit replication uniquely in cancer cells with simultaneous production of immune modulating and toxic genes. These viruses effectively eliminate primary tumors and distant tumors (metastases) without harming normal cells or tissues. Dr. Fisher's cancer r...

3D Atlas Will Help Navigate The Spinal Cord

...celerate progress of such research because it will permit scientists to navigate seamlessly between the rat and human spinal cords to test hypotheses inspired by human considerations and relate data from experiments in animals back to humans. The proposed description of the structure of the spinal cord wil...

Microreactor efficiently regenerates cofactors for biocatalysis

...us regeneration of molecules called cofactors that permit the synthesis through inexpensive and environmentally friendly biocatalytic processes. Now, a team of researchers from the University of Illinois at Urbana-Champaign and the Universite Paul Sabatier in Toulouse, France, has developed a microreactor ...

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