Tag: "acting" at biology news

Driving diversification

... an ancient, evolutionarily conserved gene, may be acting to convert a primordial dendrite pattern to different complexities for different neurons. Many neurological disorders such as autism are likely associated with dendrite defects. Understanding how dendritic morphogenesis is controlled may provide hel...

New insight into skin-tanning process suggests novel way of preventing skin cancer

...s. The experiments demonstrated that, rather than acting directly on the nuclei of melanocytes, UV radiation acts on keratinocytes (the most abundant as well as superficial cells in the skin), causing them to produce and secrete MSH, which attaches to adjacent melanocytes and starts the pigment-making proc...

Study shows enzyme builds neurotransmitters via newly discovered pathway

...ol food intake, among other critical processes, by acting on cannabinoid receptors in the central nervous system. The system drives consumption of fat and calorie-rich foods and the amount of fat stored or expended and plays a significant role in energy homeostasis. "At least one cannabinoid receptor anta...

Genetic surprise confirms neglected 70-year-old evolutionary hypothesis

...lit in two turns out to be accurate after all, and acting in nature. The finding, reported in today's issue of Science, reveals that scientists must reassess the process involved in the origin of species. The beginnings of speciation, suggests the paper, can be triggered by genes that change their locations...

Siberian lakes burp 'time-bomb' greenhouse gas

.... five times higher than previously estimated" and acting as a positive feedback to climate warming, said Katey Walter, in a paper published today in the journal Nature. Walter's project is the first time this type of bubbling has been accurately quantified. "We realized that our previous estimates were mi...

Study illuminates how the plague bacteria causes disease

...rupt cell structure. The domain paralyzes cells by acting as an "off-switch" for host proteins involved in modifying cell shape, Stebbins said. Mutations that prevented the bacterial proteins' interaction with the host protein significantly impaired YpkA's ability to disrupt the cytoskeleton. Moreover, a m...

Study suggests a second dimension to Alzheimer's disease

...may control the balance of calcium within cells by acting as a calcium channel. Calcium is an important signaling molecule, with effects on the nervous system that include functions relevant to learning and memory, the researchers said. The research team also discovered that the mutant forms of presenilin--...

News tips from the Journal of Neuroscience

...e precise neuronal response at low firing rates by acting like a coincidence detector rather than an integrator. 2. A Well-Rounded View of the Fly Synapse Natasha M. Viquez, Caroline R. Li, Yogesh P. Wairkar, and Aaron DiAntonio Fly fishing in St. Louis can be quite interesting it appears. This week, V...

Who gives stem cells their marching orders?

... same, and exposed to the same environment end up acting in such different ways, and in so orchestrated a manner? Understanding the choreography involved in this mysterious cellular signaling dance is crucial to our ability to coax stem cells to grow into specific tissues outside the body. And it is also i...

Long acting insulin makes the grade

... Health and Ageing has today informed us that long acting insulin has been approved for inclusion on the Pha...on Conference being held on the Gold Coast. Long acting insulin, with the two commercial names of Lantuse (insulin glargine) and Levemir@ (insulin detemir),...

Latest enhancements to the free Access Grid Toolkit are now available for download

...also to perform their research." Michael Papka, acting Deputy Associate Laboratory Director for Computing and Life Sciences at Argonne said "Collaboration is part of science and the Access Grid provides a robust foundation on which researchers can build collaborative tools for enabling discovery, allowin...

Case Western Reserve University chemist takes on HIV-1 virus with $1M support from NIH

...y is finding that the protein in this virus is not acting like other proteins she encounters in her lab. The flexibility of the AIDS virus that robs humans of their immune defenses has stumped her time and again. A pilot study in 2003-04 from the American Foundation for AIDS Research provided the groundwo...

Draft environmental impact statement prepared for USAMRIID facilities at Fort Detrick

...port government-wide biological defense efforts by acting as the DoD's lead laboratory for the testing and evaluation of medical biological defense products. Environmental analyses of the Proposed Action and alternatives evaluated land use, climate, geology, soils, water resources, wetlands, plant and ani...

Amphibian declines, disease ecology, biodiversity are highlighted at conference

...nteraction, either by fostering social contact, or acting as a barrier.The study will run until 2010, but results suggest that people prefer a lush landscape conducive to recreation and social networking over an arid landscape. Weds, Aug. 9, 5:00-6:30 p.m., Exhibit Hall, Ballroom Level . Unifying The...

Hunt for DNA amplified in cancers uncovers important target gene

...vasive activity is normally associated with strong acting cancer-promoting genes. The authors were further able to show, in 3D cultures and other assays, that YAP overexpression both activated cell growth and inhibited cell death, just as one might have predicted from the studies of Yki in Drosophila. Mo...

Ossur's POWER KNEE widely available in September

..., combines the act of sensing, then thinking, then acting to enable amputees to perform these activites in a normal and functional pattern. After the nationwide debut of the POWER KNEE on September 27, 2006 at the American Orthotic and Prosthetic Associations (AOPA) annual National Assembly in Hollywood, F...

NJIT researchers seed, heat and grow carbon nanotubes in long tubing

...lead researcher Somenath Mitra, PhD, professor and acting chair of NJIT's Dep't of Chemistry and Environmental Science. Graduate and post-doctoral students who worked on the project are Mahesh Karwa, Chutarat Saridara and Roman Brukh. The ground-breaking method will lead to improvements in cleaner gasolin...

Technique used commonly in physics finds application in neuroscience

... can apply this to improve our detection of toxins acting on these proteins." The researchers used the technique also to develop a sensor for detecting botulinum toxin, responsible for an often fatal type of food poisoning. "Our sensor is extremely sensitive because it is capable of detecting interacti...

UC Davis study finds HIV hiding from drugs in gut, preventing immune recovery

...ons," Dandekar said. "In these patients the gut is acting as a viral reservoir that keeps us from ridding patients of the virus." Physicians treating HIV-infected patients have long relied on blood measurements of viral load and T-cell counts when choosing a course of treatment. Viral load is the number ...

Onchocerciasis treatment reduces prevalence and intensity by 38 percent

...is pathology, since this is the habitat of the fly acting as a vector. The parasite, in the form of larve, is inoculated to humans when the fly bites humans to obtain blood. Female parasites measure 30 to 50 cm and live 10 to 15 years, whereas male parasites measure 3 to 5 cm. Worms form tumours in infected...

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(Date:10/29/2014)... open for the Society of Interventional Radiology,s ... is the one place where interventional radiologists, ... care professionals can come together to find ... being presented, discussed and tested. , ... image-guided medicine, SIR 2015 will feature essential ...
(Date:10/29/2014)... and industrial products are in the environment – and ... them, scientists have yet to determine whether they cause ... doing that by estimating which substances people are exposed ... the ACS journal Environmental Science & Technology . ... risks to human health of any given substance depend ...
(Date:10/29/2014)... LANSING, Mich. – As bodies decompose, their types ... the clues they provide could mean the difference ... , Michigan State University is using a more ... help Detroit death-scene investigators examine these changing populations. ... as geographical location of death, gender, race, socioeconomic ...
Breaking Biology News(10 mins):SIR 2015: Interventional radiology shapes tomorrow's medicine 2MSU partners with Detroit to investigate death scenes 2
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