Four gene 'micronet' found to regulate social behavior in female mice
...ller team was able to infer for the first time the roles of oxytocin and estrogen receptor genes in social recognition in female mice. "We have linked four genes known to be involved in social interaction into one model to explain the behavior known as social recognition," says first author Elena Choleris,...Purification of signaling protein may boost tissue engineering
...ought-after goal since the proteins play important roles in embryonic development and in controlling the proliferation of stem cells. Nusse and Harold Varmus, President of Memorial Sloan-Kettering Cancer Center and a member of the HHMI medical advisory board, were members of one of the research teams that ...Scientists observe nanosize microtubules 'treadmilling' across plant cells
...much of the diversity of form that plays important roles in physiological and ecological function and also makes plants fun to garden with," Ehrhardt added. Tracks and girders A microtubule is only about 25 nanometers in diameter roughly 2,000 times narrower than a human hair. Found in all plant and an...Scientists discover 'drive shaft' in mechanism that propels parasite into cells
... aldolase and perhaps other proteins can hold dual roles in the cell. We should keep that possibility in mind when assessing the possible function of proteins."...Key to hepatitis virus persistence found
... will be a valuable tool in further dissecting the roles of viral proteases and their host cell targets, says Dr. Gale. For example, the scientists plan to use NS3/4A to hunt for the still unknown host cell enzyme responsible for activating IRF-3. Conceivably, Dr. Gale explains, future therapeutic approach...Novel method identifies 'hidden' genes
... next step, say researchers, is to investigate the roles they play in cell growth and development. This wor...rtel. The next step, he says, is to figure out the roles that microRNAs play in the machinery of cell growth and differentiation and find out what breaks dow...Scientists break down patterns in nature
...sidered involves the relationships between various roles played by the species present in an area (their niches). These relationships are often described in ecology as something akin to an "evolutionary tree" in which the branches reflect how ecological communities are organized--a tree-like organizational...Carnegie Mellon University research story ideas on DNA
...the DNA quadruplex - which appear to have critical roles in gene expression and disease initiation and progression. In recent years, DNA also has been shown to catalyze reactions and serve as a nanotech device or a template to generate such devices. Dr. Bruce Armitage is one of a new generation of bioorg...New research establishes genetic associations in hepatitis C
...nt correlation with RANTES suggests their possible roles in the immune response to HCV infection in and around the portal area by attracting nave and active T-cells. This research will continue with the addition of more genes and the target set numbers of genes are to be pooled to ascertain the risk....Fruit fly cells reveal Hedgehog's secrets
...st of the fruit fly genome and examine closely the roles of the four newly identified genes....Fungi family tree goes under the microscope
... Fungi play key biological, economic and medicinal roles in many areas, including agriculture and food production; health and medicine; death and decay; and research and drug discovery. They have been found in every ecosystem where they have been sought, including deserts, glacial ice and deep-sea thermal ...Fire frequency determines forest carbon storage
...oreal forest and the atmosphere, and clarify their roles in global change....Carnegie Mellon scientists create unique DNA probe with great potential
...on. DNA quadruplexes also appear to play important roles in regulating the expression of genes that produce antibodies as well as c-MYC, a cancer-causing gene. A quadruplex structure has also been implicated in the messenger RNA derived from FMRP, a gene that has been implicated in fragile X syndrome, the ...Gene that drives cells to commit suicide also plays key role in development of skeletal muscle
...es. The fact that FKHR plays such vastly different roles depending on where it is, forces us to reassess the impact that a single transcription factor can have on cells, said Gerard C. Grosveld, Ph.D., chairman of the St. Jude Department of Genetics. It also alerts us to the possibility that a mutated tran...Neural development in time and space
...rol of neural fate determination. "Identifying new roles to this bunch of old proteins is intriguing" says Dr. Ericson, "since it helps to demystify the time aspect of neural development and further indicates that the temporal and spatial control of neuronal differentiation must be tightly linked. It is im...Tea complements drugs in fight against colon cancer
..., medical and surgical treatments may all play key roles in preventing death from this cancer, he said....Experimental Biology 2003 meets in San Diego April 11-15
... focus on topics such as glycobiology (the complex roles of various naturally occurring sugars); pathways and regulation of metabolism, including symposia on novel signaling pathways involved in leptin action and regulation of energy balance and novel mechanisms for insulin resistance; and how the rapidly ...Pregnancy prevention efforts rely on neighborhood ties
...ities for both adults and teens to take leadership roles and multiple effective communication methods that reached adults and youth, including e-mail, phone calls and a full-page "youth forum" feature in the monthly Vietnamese newspaper. Neighborhoods that lacked many of these features or showed little int...Iowa City chemist wins national award for drug research
...le about their specific structures, activities and roles in the body. He decided to study them and, by doing so, try to make a simpler, more selective version of the drug in the laboratory. With his multidisciplinary team of carbohydrate chemists, biologists, medicinal chemists and pharmacologists, Linhard...Maine chemist wins national award for research and mentoring
...lained. With their attractive colors and important roles in nature, carotenoids can draw students to the basics of electron structure, energy transfer and other fundamentals of physical chemistry. In turn, Christensen can then show how understanding such properties can further other fields such as nanotech...