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Tag: "weight" at biology news

Womb needed for proper brain development

...a study of 80 premature boys and girls whose birth weight was less than 1,000 grams (about 2.2 pounds), and who were born just 26 weeks into a normal 40-week pregnancy. Clinical ultrasounds of the premature infants' brains were done at birth and again when they were discharged from hospital, generally aroun...

Machinery of the 'marijuana munchies'

...id signaling in contributing to the maintenance of weight balance?" The researchers also included that "upre... may explain, at least in part, the increased body weight consistent with a prior report of elevated endocannabinoids" in such leptin-deficient mice. The res...

New class of antibiotics effective against drug-resistant bacteria discovered in fungi

...oultry to prevent bacterial infections and improve weight gain. A little bit of arsenic is taken up by the tissue and the majority of it is excreted in urine. Poultry litter -- the wood chips, feathers, droppings, and urine from under poultry houses -- is rich in nitrogen and phosphorous, so is a logical fe...

Geoscientists follow arsenic from chicken feed to streambeds

...oultry to prevent bacterial infections and improve weight gain. A little bit of arsenic is taken up by the tissue and the majority of it is excreted in urine. Poultry litter -- the wood chips, feathers, droppings, and urine from under poultry houses -- is rich in nitrogen and phosphorous, so is a logical fe...

Scientists discover the molecular switch for nerve cells' insulating jelly rolls

...e nervous system and constitutes 50 percent of the weight of the brain. It is also an important component of the spinal cord, and of nerves in other parts of the body. It has been known for almost 170 years that there are two kinds of axons --one is wrapped in myelin and appears white and the other is not a...

Researchers find gland that tells fruit flies when to stop growing

...uvenile and signals when it has reached a critical weight to begin metamorphosis into an adult. The team, l...." In the research, Mirth determined the critical weight for fruit flies to begin metamorphosis, and examined when larvae with enlarged prothoracic glands re...

Restaurant seafood prices since 1850s help plot marine harvests through history

...s pricing lobsters at one-quarter pound (113 gram) weight increments, another reflection of declining supplies, says Dr. Jones. "It's interesting on menus today to see the appearance of four and five pound (1.8 to 2.3 kilo) lobsters," he notes. "There is little chance those are coming from the inshore fish...

Cracking the perception code

...s after neuronal firing could give more subjective weight to the beginning of the response. Looking at the electrical responses from single neurons, Romo and his colleagues determined that, if all the neuronal firings were treated equally, these responses could not explain the monkeys' perception of the si...

Bronx Zoo bears are new Samsonite gorillas

...005/2005102.html Subjecting the canister to the weight and strength of the grizzly bear, one of the largest carnivores in the world, means the container provides more-than-adequate protection from the black bear, the grizzly bear's smaller cousin. Unlike grizzly bears, which are found in only a handful o...

An essential regulator of body weight revealed

... neurons, adult mice stop eating and undergo rapid weight loss. Remarkably, the researchers found that ab...that lacked both NPY and AgRP, they too had normal weight and fed normally. Speculation continued as to what molecule or molecules might be responsible for ...

Grasshopper love songs give insight into sensory tuning

...ral relevance of stimuli determines their relative weight in the ensemble." Machens, Herz, and their colleagues also concluded that their analytical technique could yield broader insight into the evolution of sensory circuitry. "Our approach presents a systematic way to uncover potential mismatches betwee...

Molecular Partners Required For Appropriate Neuronal Gene Repression

...ened levels of HA -- specifically a high-molecular weight version of HA -- and myelin loss in an MS-like disease in mice. We also identified the cells that were making the HA and determined that HA accumulation was linked to an overabundance of the CD44 protein." To further understand the process, Bebo and...

OHSU researchers discover potential mechanism to repair brain damage linked to Multiple Sclerosis

...ened levels of HA -- specifically a high-molecular weight version of HA -- and myelin loss in an MS-like disease in mice. We also identified the cells that were making the HA and determined that HA accumulation was linked to an overabundance of the CD44 protein." To further understand the process, Bebo and...

Old drug shows new promise for Huntington's Disease

...etter on tests of motor coordination, and had less weight loss. "It's a limited study, in that we used the same drug dose on all the animals as opposed to comparing different doses, but fairly convincing," Massa concluded. "Together, the in vitro and in vivo results suggest that Clioquinol has an effect of...

MWG Biotech expands siMAX?siRNA portfolio with new scales, lengths and design tools

...ir larval form, they consume many times their body weight in food, which can include our crops. ?When babies...s respond when a fruit fly larva has gained enough weight ?and stored enough food ?to begin the transformation to adulthood. When the gene was deactivated, l...

Scientists find a maturity gene in fly

...ir larval form, they consume many times their body weight in food, which can include our crops. ?When babies...s respond when a fruit fly larva has gained enough weight ?and stored enough food ?to begin the transformation to adulthood. When the gene was deactivated, l...

Exercise aside, genes may ultimately dictate seniors' mobility

...luated the 8 percent who reported participating in weight training. But genetic makeup influenced long-term...enetic make-up. In addition, seniors who reported weight training and had the DD or ID genotype displayed the lowest rate of mobility loss in any exercise ca...

UCLA scientists reveal how Nipah virus infects cells

...entists used an instrument that sorts molecules by weight to identify Ephrin-B2 as the receptor that bound to the bait. To confirm their findings, the UCLA team engineered a harmless virus with Nipah virus proteins embedded in its coat. The decoy virus successfully infected cells vulnerable to the Nipah vi...

Green diesel: New process makes liquid transportation fuel from plants

...tes to store energy." About 75 percent of the dry weight of herbaceous and woody biomass is comprised of carbohydrates. Because the UW-Madison process works with a range of carbohydrates, a wide range of plants, and more parts of the plant, can be consumed to make fuel. "The current delivered cost of biom...

Weight control protein may yield antiobesity drugs

A weight control protein with a key role in the brain's abi...s, including humans, the hormone acts to stabilize weight and glucose balance through activating its receptors in the hypothalamus. Earlier work by Rui's gro...

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