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Tag: "helps" at biology news

Neurons find their place in the developing nervous system with the help of a sticky molecule

...d on the surface of certain migrating neurons that helps them find their correct position along on the way. Decreasing levels of that protein, an adhesion molecule called MDGA1, prevents neurons that normally make this protein from assuming their proper position, resulting in brain malformation, research...

Newly identified mechanism helps explain why people of African descent are more vulnerable to TB

...nd that they are more vulnerable to TB. This study helps to resolve two of the puzzles of tuberculosis, the differences between mice and human antibacterial mechanisms, and the susceptibility of people of African and possibly Asian descent to tuberculosis. The researchers suggest a need for clinical trial...

Feinstein researchers identify intelligence gene

...unication between brain cells in these regions and helps promote their survival. An alteration in the genetic blueprint for dysbindin may ultimately interfere with cell communication and fail to protect brain cells from dying, with a resulting negative impact on cognition and intelligence. ...

Powerful new tool for studying brain development

... in St. Jude Developmental Neurobiology. "The BGEM helps researchers skip over much of the drudgery of digging up information from the literature or from other databases." The BGEM already contains detailed information and images of the expression of hundreds of genes that play key roles directing brain d...

Common bacteria pirate natural mechanism to get inside cells

...et stuck on 'on'." Receptor over-stimulation also helps explain why some drugs stop being effective over time. "What that means is there are no more receptors outside the cells to be affected by the drugs," Dr. Daaka says. "This is a self-regulatory mechanism for cells. You don't want your receptors to al...

Amazonian terra preta can transform poor soil into fertile

... amount of fertilizer needed, because the bio-char helps retain nitrogen in the soil as well as higher levels of plant-available phosphorus, calcium, sulfur and organic matter. The black soil also does not get depleted, as do other soils, after repeated use. "In other words, producing and applying bio-cha...

GPSDB, the free Gene and Protein Synonyms DataBase

... amount of fertilizer needed, because the bio-char helps retain nitrogen in the soil as well as higher levels of plant-available phosphorus, calcium, sulfur and organic matter. The black soil also does not get depleted, as do other soils, after repeated use. "In other words, producing and applying bio-cha...

Boosting newborns' immune responses

... block adenosine in newborn animals to see if this helps protect against infection," Levy says. Levy believes the differences his team has uncovered in newborns' immune response patterns may serve an evolutionary purpose. Nature may suppress babies' production of inflammatory cytokines like TNF-alpha and ...

New compound stops brain cell degeneration in Alzheimer's disease

...ion in the hippocampus, the area of the brain that helps regulate memory and is gradually destroyed in neurodegenerative diseases such as Alzheimer's. Treatment with the compound also attenuated Alzheimer's-like behavioral deficits in the mice that are due to injury to the hippocampus. While previous rese...

Protecting endangered species helps reduce poverty

...ndangered species like pandas, gorillas and tigers helps reduce poverty and improve the lives of local comm... shows that WWF's work to save endangered wildlife helps eradicate poverty and hunger, as well as promote sustainable and fair development in rural areas. ...

Growing crops to cope with climate change

... live in an altered climate. Research such as this helps to present answers to some of these problems." ...

Cholesterol gets 'thumbs up' for role in digit development

... the National Academy of Sciences (PNAS) last week helps to clear up some of the conflicting data about cholesterol's controversial role in limb development, said senior author on the study, Chin Chiang, Ph.D., associate professor of Cell and Developmental Biology. The developmental protein at work here,...

Born with a love of speech

...itch of a voice, such as baritone or soprano, that helps us clue in to the identity of a voice. These non-speech stimuli were developed by Drs. Sonya Bird and Guy Carden in the Department of Linguistics and Dr. Janet Werker in the Department of Psychology, all at the University of British Columbia, where D...

Lactic acid not athlete's poison, but an energy source - if you know how to use it

...mulating lactate and create more energy. Training helps people get rid of the lactic acid before it can build to the point where it causes muscle fatigue, and at the cellular level, Brooks said, training means growing the mitochondria in muscle cells. The mitochondria - often called the powerhouse of the ...

Aggression-related gene weakens brain's impulse control circuits

...omics' to study the brain's workings in a way that helps us to understand the circuitry underlying diversity in human temperament," said NIH Director Elias A. Zerhouni, M.D., who conducted MRI studies earlier in his career. "By itself, this gene is likely to contribute only a small amount of risk in int...

Viral protein helps infected T cells stick to uninfected cells

...r T cells, touch uninfected T cells. The finding helps explain how this cell-to-cell transmission happens. It suggests that an HTLV-1 protein known as p12 activates infected T cells and causes them to become sticky and adhere to other T cells. The greater stickiness happens because the p12 viral protei...

Why nerve cells work faster than the theory allows

...ctivation of action potentials, on the other hand, helps the cells to transmit fast changing signals, even with high precision. According to the Hodgkin-Huxley model, the cells would lack the ability to do this. "Many scientists ?including us ?saw the Hodgkin-Huxley model up to now no longer as a hypoth...

Forsyth scientists gain greater understanding of how embryos differentiate left from right

...serotonin at the 16-cell stage, suggesting that it helps to regulate the early flow of this important neurotransmitter. These data implicate H+-V-ATPase activity in patterning the left right axis of three different vertebrates, reveal mechanisms both upstream and downstream of its activity, and identify a ...

Animal brains 'hard-wired' to recognize predator's foot movements, Queen's study suggests

...etector is part of an evolutionary old system that helps animals detect quickly ?even on the periphery of their visual field ?whether a potential predator or prey is nearby. "Research on newly hatched chicks suggests that it works from very early on in an animal's development," says Dr. Troje. "It seems li...

Patients now surviving once-fatal immune disease

...amma globulin therapy. Our study is reassuring and helps to put into perspective the ability of such patients to thrive with proper care, despite this potentially devastating disease." Forty of the 41 patients were receiving intravenous infusions of gamma globulin every two to four weeks and 16 (39 perce...

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