biology 2 9

Tag: "biology" at biology news

Gene chip technology shows potential for identifying life-threatening blood infection

...we can also say these genes are major clues to the biology of infection and the host's response to it. If every type of infection activates these genes, then we know they must be important to the disease process, and may also be new treatment targets." Cobb's current studies are focused on narrowing the n...

Emotional control circuit of brain's fear response discovered

...d treatments may someday be developed based on the biology of the person's disease," said Eric Kandel, M.D., Howard Hughes Medical Institute senior investigator, Fred Kavli Professor and Director of the Kavli Institute for Brain Sciences at the Columbia University College of Physicians and Surgeons (P&S)...

Fruit fly aggression studies have relevance to humans, animals

... said. "Ultimately we hope to understand the basic biology of this very important trait, because the better we understand it in flies, the more we can develop logical human pharmaceutical interventions." ...

Oldest animal fossils may have been bacteria

...ch include Bailey's adviser Frank Corsetti and USC biology graduate student Beverly Flood, were careful not to rule out the existence of animal fossils from the same geological era. The Doushantuo Formation contains the fossils of many species, some of which have been identified as animals. While calling t...

Humpback whales have brain cells also found in humans

....interscience.wiley.com/journal/ar . Although the biology of the humpback whale is well understood, there have been virtually no studies published on its brain composition, leaving an open question as to how brain structure may relate to the extensive behavioral and social abilities of this mammal. Although...

How blood flow dictates gene expression

...derstanding Klf2's role in blood vessel and muscle biology could help with fighting atherosclerosis. "We always knew that there had to be this line of communication from the vessel lining, or endothelium, to the smooth muscles, which never sees a blood cell," says senior author Mark Kahn, MD, Associate Pr...

Search on for treatment of slow-healing wounds

...artment of Medicine, which brings expertise in the biology of wound healing to the project. "It's a point to relish that much of the data that was gathered to make this grant successful was the result of undergraduate work," Stewart said. Ellen Swogger, a recent chemical engineering graduate from Miles C...

Jefferson scientists find aging gene also protects against prostate cancer development

...Pestell, who is also professor and chair of cancer biology at Jefferson Medical College. “We’ve shown that by making a prostate cancer with cells overexpressing a mutation for the androgen receptor, which is resistant to current forms of therapy, we can almost completely block the growth of these cells wit...

UNC scientists solve mystery of how largest cellular motor protein powers movement

...ool of Medicine’s bioinformatics and computational biology program, explains further. “One of the unknowns about dynein was that the molecular site where chemical energy is initially released from ATP is very far away from where the mechanical force occurs. The mechanical force must be transmitted over a la...

Honey bee genome holds clues to social behavior

...ion of gene expression, we hope to extrapolate the biology to humans." Adult worker bees perform a number of tasks in the hive when they are young, such as caring for eggs and larvae, and then shift to foraging for nectar and pollen as they age. However, if the hive has a shortage of foragers, some of the ...

Researchers make progress in studying genetic traits of India-born populations

... I. Patel, professor of biochemistry and molecular biology at the Keck School of Medicine of the University of Southern California (USC), and Noah Rosenberg, assistant professor in the department of Human Genetics at the University of Michigan, have conducted genetic analysis of India-born individuals in the...

Steep oxygen decline halted first land colonization by Earth's sea creatures

...ltiplied like crazy," said Ward, a UW professor of biology and of Earth and space sciences. He notes that atmospheric oxygen rose sharply at the end of the Silurian period about 415 million years ago, to reach a level of about 22 percent of the atmosphere, similar to today's oxygen content. But 55 million...

MIT creates 3-D scaffold for growing stem cells

... designer scaffolds, and most textbooks about cell biology will have to be revised when people obtain results from 3D cell culture studies," Zhang said. The researchers are now testing the designer scaffold with a variety of cells, including tooth, bone, heart, liver, cartilage, skin, pancreas, blood cells...

Jefferson researchers uncover new way nature turns genes on and off

...zo, Ph.D., professor of biochemistry and molecular biology at Jefferson Medical College, Svetlana Petruk, Ph.D., and their co-authors focused on pieces of genetic material called non-coding (nc)RNAs. About two-thirds of the human genome is converted into such RNAs (the better known messenger RNAs are transla...

Better sludge through metagenomics

...tep in a much broader strategy employing a systems biology approach to the study of microbial communities with the goal of designing predictive models to understand how these communities function," said Hector Garcia Martin, lead author of the study and post-doctoral fellow in the DOE JGI's Microbial Ecology...

How many genes does it take to learn? Lessons from sea slugs

...o Edgar Walters, Ph.D., a professor of integrative biology and pharmacology at the University of Texas Medical School at Houston, who was not involved in the research. "Few animals other than Aplysia allow scientists to relate a molecular pathway directly to the function of a cell, all in context with an...

When nerve cells can't make contact

...w want to carry out an analysis of the behavioural biology of mutant mice lacking not all of the neuroligins, but just neuroligin-3 or neuroligin-4, as is the case of autistic patients with neuroligin mutations. The relevant mutant mice have been available in the laboratory for a long time, "but we only star...

Protein shown to rally biological clock

...James Huettner, Ph.D., associate professor in cell biology and physiology at the Washington University School of Medicine, and Martin Straume, a biostatistician, have determined that VIP ¬?vasoactive intestinal polypeptide ?is the rallying protein that signals the brain’s biological clock to coordinate dai...

What animals can tell us about hemorrhage, organ transplants and aging

...f the mechanisms of hibernation," and "Comparative biology of aging in long-lived animals." How is it that: ...he aging process? In the symposium, "Comparative biology of aging in long-lived animals" scientists will compare the physiology of a variety of long- and sho...

Bacterial protein shows promise in treating intestinal parasites

...ons," said Raffi Aroian, an associate professor of biology at UCSD and co-principal author of the study. "Crystal toxins are safe to humans, mammals and other vertebrates. And it might be possible to improve the efficacy of current treatments by giving a drug like mebendazole and Cry5B simultaneously." Oth...

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