Liver may be source of 'good' cholesterol
...isease. Until now, scientists had thought that HDL formation occurred throughout the body rather than coming mainly from one organ. They know that some of it is manufactured in the walls of blood vessels, for example. "These results profoundly alter our concept of how HDL is manufactured in the body and estab...Chemical present in clear plastics can impair learning and cause disease
...sexually differentiated behaviors, as well as with formation and retention of memory. Although estrogen is best known as one of the principal hormone products of the ovary, a number of studies over the last twenty years have shown that estrogen is also synthesized in the brain, where it contributes to the deve...Smart plastics change shape with light
...f the stretched sample to light. The result is the formation of two layers. So "while the deformation is well-fixed for [the irradiated] layer, the other keeps its elasticity. As a result, one contracts much more than the other when the external stress is released, forming an arch or corkscrew spiral shape," t...Shape-altering genes linked to ovarian cancer
...nation with any of the other HOX genes resulted in formation of low-grade tumors that are less aggressive than high-grade tumors. Because HOX genes are sensitive to levels of the female hormones estrogen and progesterone produced in the reproductive organs, Naora speculates that abnormal changes in levels of t...Alternate view for pathology of AD
... to the researchers, tau phosphorylation or fibril formation itself is unlikely to be the harbinger of neuronal death since NFT-bearing neurons appear to survive for decades. In fact, one study found that neurons containing NFTs can survive for as long as 20 years. Senior author, Mark A. Smith, Ph.D., profess...Tea may help prevent diabetes and cataracts
... human, both teas significantly inhibited cataract formation relative to a control group which did not get tea, they say. The researchers found that both teas decreased glucose levels, which in turn affects other biochemical pathways that accelerate diabetic complications such as cataracts. "Most people, scien...Melbourne researchers develop safer and more effective 'aspirin'
...ating heart attack and stroke patients by stopping formation of the problem-causing blood clots without causing...leagues identified the mechanism that promotes the formation of pathological blood clots (clots that lead to heart attack or stroke) and how it differed from the...The Cochrane Library newsletter, 2005, issue 2
... key role in normal brain function, especially the formation and reinforcement of memories. In Alzheimer's disease, nerve cells can become overactive to the point where they die. Consequently there is the hope that memantine, which blocks some of L-glutamate's receptors, may reduce symptoms of dementia. Cochra...Used in a new way, RNA interference permanently silences key breast cancer gene
...TAT3 because when activated, it is involved in the formation of multiple types of tumors, including breast cancer. When hijacked by a cancer cell, the activated gene is believed to interfere with the ability of key immune cells to attack a growing tumor. Investigators used the lentivirus to permanently insert ...Little evidence found for IVF as most effective infertility treatment
...d inserted in a woman's fallopian tubes before the formation of an embryo. Artificial insemination involves placing a specially prepared semen sample directly into a woman's uterus during ovulation. IVF has become a widely accepted treatment for unexplained infertility even though very few high quality studies...New prostate cancer studies look at hormone and protein connection
...late the function of beta-catenin to prevent tumor formation in prostate cells....Spinoff company receives $2.5 million NIH grant to build prototype scanner
...: angiogenesis and metastasis. Angiogenesis is the formation of new blood vessels that supply the nutrients tumors need to grow. With the newly formed vessels in place, cancer cells that break away from the tumor can circulate through the body to seed cancer elsewhere (metastasis). Conventional mammography, li...Antibody combined with cancer drug shows promise against breast tumors
...rishing tumors significantly reduced breast cancer formation and growth in mice when combined with a current cancer drug, according to researchers at UT Southwestern Medical Center. Their work appears in today's issue of Cancer Research. "This antibody could enhance the therapeutic efficacy of the drug docetax...Researchers prevent post-traumatic brain damage
... cycle, thus limiting growth of the glial scar and formation of an inflammatory response. The size of the lesion was reduced by more than 80 percent, compared to rats who were not given the drug, and that resulted in a "remarkable improvement in tissue preservation and behavioral outcome," said Di Giovanni. ...Study shows Erbitux may fight colorectal cancer after other therapies fail
...ing repaired, blocks metastasis and suppresses the formation of blood vessels to nourish the tumor, he adds. The most frequently reported side effects were skin rashes, weakness and nausea....Disease progression model of pancreatic cancer developed by Penn researchers
... in the mouse model. Genomic instabilitycontinuous formation of mutated chromosomesleads to widespread genetic changes throughout the affected cells. Genomic instability is seen in many human epithelial cancers, including pancreatic cancer, and is thought to be a driving force in the transition from local tumo...Fluorescence device to diagnose atherosclerosis and tumors described at optics conference
...'s thin, fibrous cap, often leading to rupture and formation of blood clots that could plug the blood vessel. A variety of technologies are now being investigated for their potential to detect vulnerable plaque before rupture or to study how plaques develop and rupture. This is believed to be the first docume...New technique appears to stop abnormal blood vessel growth
... this technology can not only prevent blood vessel formation but also help eliminate existing blood vessels, Dr. Ambati says. Much laboratory work remains before clinical trials are considered, he says. The researchers need to study the process in the retina, the target of abnormal blood vessel growth that occ...Mayo Clinic Proceedings studies risk factors for blood clots
... a pulmonary embolism after the surgery. The formation of a blood clot within one of the large, deep veins of the pelvis or lower limbs, often in the deep veins of the calf, thigh, knee or pelvis, is referred to as deep vein thrombosis (DVT). A pulmonary embolism can form when the blood clot breaks into ...