Study suggests estrogen deficiency can lead to obesity-induced high blood pressure after menopause
...gnificantly higher blood pressure than the control rats (126.2 versus 110.6 mmHg). The rats receiving estrogen had the lowest blood pressure levels of all (102.6 mmHg). The researchers also...Testosterone replacement therapy: How safe for aging men?
...ve Rats (SHR), in which spontaneously hypertensive rats were used as a model for genetic hypertension. Three groups of rats were used: intact, gonadectomized (at eight months of age), and testosterone-supplemented rats. Test...Female gender provides an advantage in renal diseases
...ed supplemental levels of estrogen/testosterone to rats or castrated/performed ovariectomies in males and females rats, respectively. The studies found that estrogen helped to protect against kidney disease while testosterone proved to be detrimental to kidney health. More recently, Dr. Sharon Silbiger ...Grapes, soy and kudzu blunt some menopausal side effects
...ion significantly reduced arterial pressure in the rats fed a high salt diet, compared to controls. The re... percent of the blood pressure rise that occurs in rats placed on a high salt diet. Kudzu has also been shown to reduce blood glucose, insulin and leptin in...News tips from the Journal of Neuroscience
...s major pain effectors, the authors injected naive rats intrathecally with the C5a anaphylatoxin. C5a increased cold pain sensitivity, and a C5a receptor antagonist blocked this effect, consistent with a role for C5a in neuropathic pain....UCF research links proteins, stem cells and potential Alzheimer's treatment
...ined a technique for transplanting stem cells into rats and a newly discovered compound, phenserine. It re...orted that brain stem cells transplanted into aged rats seemed to become functional neurons and improved age-associated memory loss, with no side effects. ...ESA announces 2007 award recipients
...f California, Santa Cruz) for her paper Introduced rats indirectly alter marine communities. She found that marine bird abundance differed between rat-infested and rat-free islands, and that this resulted in significant differences in intertidal invertebrate abundance and algal cover on the two island ty...Stem cell therapy rescues motor neurons in ALS model
...d cells were then implanted in the spinal cords of rats afflicted with a form of ALS. "GDNF has a very high affinity for motor neurons in the spinal cord," says Svendsen. When implanted, "the (GDNF secreting) cells survive beautifully. In 80 percent of the animals, we saw nice maturing transplants." T...Cell damage caused by brushing may help keep gums healthy
...s. They then brushed the teeth, gums and tongue of rats with a modified electric toothbrush. We saw lots of bright cells, says Dr. Miyake, co-director of the MCG Cell Imaging Core Facility. (W)e suggest that, in addition to its well-know ability to remove bacteria and their harmful products from teeth,...New studies on goats' milk show it is more beneficial to health than cows' milk
... metabolic balance technique has been used both in rats with experimentally induced nutritional ferropenic...e calcium balance in the organism was found in the rats that consumed this food. Javier Daz Castro points out that the inclusion of goats milk with normal...News tips from the Journal of Neuroscience
... a substrate for cGMP-dependent protein kinase. In rats and humans, A10 neurons expressed up to three times more G-substrate than A9 neurons. Overexpression of wild-type G-substrate protected dopaminergic neurons from 6-hydroxydopamine-induced toxicity. The T123A G-substrate mutant, which has reduced inhi...Zebrafish: It's not your parents' lab rat
...ing neurological development." Zebrafish -- like rats and fruit flies before them -- are becoming regular contributors on research ranging from cancer to cocaine addiction. For example, zebrafish were used a landmark 2005 study that led scientists to the human gene that regulates skin color. Lane's ze...Nature's weapon against nerve agents
...aintact, and follows earlier unpublished work with rats which showed the enzyme successfully protected the animals against neurological problems caused by exposure to paraoxon, a model compound for nerve agents such as sarin, soman and VX. GOTs ability to protect against neurological damage, the company...JCI table of contents -- July 26, 2007
...howed that spinal cord injury in otherwise healthy rats caused a lesion in spinal cord tissue that progressively expanded in size and was accompanied by a fragmentation of surrounding capillaries, resulting in hemorrhage, tissue necrosis, and neurological dysfunction. The expression of sulfonylurea recept...Monell researchers find metabolic defect in liver that can lead to obesity
...ced obesity, Friedman and lead author Hong Ji used rats that differ in their genetic predisposition to gai...g a low-fat diet and still lean, the obesity-prone rats were less able to burn fat than were the obesity-resistant rats. This intrinsic deficit in fat oxida...Radiation therapy combined with microsurgery shows promise for curing injured spinal cord
Research on rats with crushed spinal cords, similar to human injury...ock the repair process. In earlier research on rats with cords that were completely severed, Kalderon was able to show that radiation therapy, similar t...Pediatric ritalin use may affect developing brain, new study suggests
...veloping brain, suggests a new study of very young rats by a research team at Weill Cornell Medical Colleg...er. "The changes we saw in the brains of treated rats occurred in areas strongly linked to higher executive functioning, addiction and appetite, social re...Assessing levies for by-catch could fund conservation measures
...so threatened by such invasive species as cats and rats at breeding colonies. "Fisheries are complex, reve...r from other causes of population decline, such as rats eating eggs, chicks and adult birds on the island. Their analysis showed that closing the fishery ar...Research study describes the role part of the brain plays in memory
A research with experimental rats carried out by the Institute of Neuroscience of th...ey applied a chemical compound to the experimental rats that neutralised the acetylcholine receptors (muscarinic cholinergic receptor) of this region. By bl......d axonal and myelin loss after injury; and treated rats had better recovery of hindlimb locomotor function. News for the Left-Handed Stefan Klppel, Anna Vongerichten, Thilo van Eimeren, Richard S. J. Frackowiak, and Hartwig R. Siebner Most of us (90%) do just about every complex manual task with o...