http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Higher-than-normal levels of insulin place postmenopausal women at increased risk of breast cancer, researchers at Albert Einstein College of Medicine of Yeshiva University report. Their findings, published in the January 7 issue of the Journal of the National Cancer Institute, suggest that interventions that target insulin and its signaling pathways may decrease breast cancer risk in these women. http://www.physorg.com/news150781398.html Medicine & Health Sat, 10 Jan 2009 03:43:18 EST news150781398 (PhysOrg.com) -- Using cancer cells that were originally isolated from an anaplastic large cell lymphoma patient, two researchers, including a faculty member of The University of Texas at Austin's College of Pharmacy, have identified a novel regulatory mechanism in inflammatory signaling of immune cells that may prove beneficial in treating cancer. http://www.physorg.com/news150652358.html Medicine & Health Thu, 08 Jan 2009 15:52:38 EST news150652358 The lowest ever levels of oxygen in humans have been reported in climbers on an expedition led by UCL (University College London) doctors. The world-first measurements of blood oxygen levels in climbers near the top of Mount Everest, published in this week's New England Journal of Medicine (NEJM), could eventually help critical care doctors to re-evaluate treatment strategies in some long-term patients with similarly low levels of blood oxygen. http://www.physorg.com/news150571554.html Medicine & Health Wed, 07 Jan 2009 17:25:54 EST news150571554 The molecular details of Aromatase, the key enzyme required for the body to make estrogen, are no longer a mystery thanks to the structural biology work done by the Ghosh lab at the Hauptman-Woodward Medical Research Institute (HWI) in Buffalo, New York. Dr. Debashis Ghosh's solution of the three-dimensional structure of aromatase is the first time that scientists have been able to visualize the mechanism of synthesizing estrogen. http://www.physorg.com/news150556571.html Medicine & Health Wed, 07 Jan 2009 13:16:11 EST news150556571 Research on the mechanisms involved in neurodegenerative diseases such as Alzheimer's, stroke, dementia, Parkinson's and multiple sclerosis, to name a few, has taken a step forward thanks to the work of biological sciences Ph.D. student Sonia Do Carmo, supervised by Professor Éric Rassart of the Université du Québec à Montreal (UQAM) Biological Sciences Department, in collaboration with researchers at the Armand-Frappier Institute and the University of Valladolid in Spain. http://www.physorg.com/news150468573.html Medicine & Health Tue, 06 Jan 2009 12:49:33 EST news150468573 Females of all ages are less active than their male peers. Two studies, presented today (Tuesday 6 January) at a major academic conference, reveal the gender difference in activity levels among school children and the over 70s. Both studies show males to be more physically active than females. http://www.physorg.com/news150446607.html Medicine & Health Tue, 06 Jan 2009 06:43:27 EST news150446607 Childhood trauma is a potent risk factor for development of chronic fatigue syndrome (CFS), according to a study by researchers at Emory University School of Medicine and the Centers for Disease Control and Prevention (CDC). The study is published in the Jan. 5, 2009 Archives of General Psychiatry. http://www.physorg.com/news150396443.html Medicine & Health Mon, 05 Jan 2009 16:47:23 EST news150396443 Levels of two proteins in a woman's ovarian cancer are strongly associated with her likelihood of survival, a research team led by scientists at The University of Texas M. D. Anderson Cancer Center reports in the Dec. 18 issue of the New England Journal of Medicine. http://www.physorg.com/news148758151.html Medicine & Health Wed, 17 Dec 2008 17:42:31 EST news148758151 (PhysOrg.com) -- Write out every letter in the human genome, one A, C, T or G per millimeter, and the text would be 1,800 miles long, roughly the distance from New York to Colorado. Now, in the search for genes that affect how humans synthesize, process and break down cholesterol, a consortium of researchers led by Rockefeller University scientists has found a single letter among this expanse of code that is associated with elevated LDL cholesterol levels, one of the leading health concerns that has come to dominate the 21st century. http://www.physorg.com/news148663261.html Medicine & Health Tue, 16 Dec 2008 15:21:01 EST news148663261 A secondary analysis of a large, multicenter clinical trial has shown that a diet loaded with fruits, vegetables and fiber and somewhat lower in fat compared to standard federal dietary recommendations cuts the risk of recurrence in a subgroup of early-stage breast cancer survivors - women who didn't have hot flashes - by approximately 31 percent. These patients typically have higher recurrence and lower survival rates than breast cancer patients who have hot flashes. The study team, led by researchers at the Moores Cancer Center at the University of California, San Diego, along with six other sites, including the University of California, Davis, reported its results online December 15, 2008, in the Journal of Clinical Oncology. http://www.physorg.com/news148624645.html Medicine & Health Tue, 16 Dec 2008 04:37:25 EST news148624645 Patients with the skin disease psoriasis appear more likely to have higher levels of leptin (a hormone produced by fat cells that may contribute to obesity and other metabolic abnormalities) than persons without psoriasis, according to a report in the December issue of Archives of Dermatology. http://www.physorg.com/news148585122.html Medicine & Health Mon, 15 Dec 2008 17:38:42 EST news148585122 In the first worldwide study of pesticides in fruit-based soft drinks, researchers in Spain are reporting relatively high levels of pesticides in drinks in some countries, especially the United Kingdom and Spain. Drinks sampled from the United States, however, had relatively low levels, the researchers note. Their study is scheduled for the December 15 issue of ACS' Analytical Chemistry. http://www.physorg.com/news148566374.html Chemistry Mon, 15 Dec 2008 12:26:14 EST news148566374 Three-quarters of youths with type 1 diabetes were found to have insufficient levels of vitamin D, according to a study by researchers at the Joslin Diabetes Center - findings that suggest children with the disease may need vitamin D supplementation to prevent bone fragility later in life. http://www.physorg.com/news148565766.html Medicine & Health Mon, 15 Dec 2008 12:16:06 EST news148565766 For patients with moderate chronic kidney disease (CKD), higher levels of phosphorus in the blood are associated with increased calcification of the major arteries and heart valves -which may contribute to the increased risk of cardiovascular disease in patients with CKD, reports a study in the Journal of the American Society of Nephrology (JASN). http://www.physorg.com/news148152195.html Medicine & Health Wed, 10 Dec 2008 17:23:15 EST news148152195 Overweight siblings of children with type 2 diabetes are four times more likely to have abnormal glucose levels compared to other overweight children. Because abnormal glucose levels may indicate risk for diabetes or diabetes itself, these children could benefit from screening tests and diabetes prevention education. http://www.physorg.com/news148067860.html Medicine & Health Tue, 09 Dec 2008 17:57:40 EST news148067860 A pair of proteins may help explain why people with surgically removed colorectal cancer and who are overweight, physically inactive, and follow a Western-pattern diet may have an increased risk of dying of the disease or other causes, Dana-Farber Cancer Institute scientists report in a new study. http://www.physorg.com/news148057346.html Medicine & Health Tue, 09 Dec 2008 15:02:26 EST news148057346 A connection between the body clock and abnormalities in metabolism and diabetes has been suggested in new research by an international team involving the University of Oxford, the Wellcome Trust Sanger Institute and the MRC Epidemiology Unit in Cambridge. http://www.physorg.com/news148053745.html Medicine & Health Tue, 09 Dec 2008 14:02:25 EST news148053745 Pomegranate peel left over from production of the juice renowned for its potential health benefits can make a nutritious feed supplement for cattle, researchers in Israel report in an article in the November 12 issue of ACS' biweekly Journal of Agricultural and Food Chemistry. The peel packs some of the weight-boosting and health-enhancing effects of antibiotics and hormones without the detrimental effects, and researchers say it may yield meat with higher levels of beneficial antioxidants. http://www.physorg.com/news147956627.html Chemistry Mon, 08 Dec 2008 11:03:47 EST news147956627 Researchers in Finland are reporting identification of the first potential "biomarker" that could be used in development of a sputum test for early detection of chronic obstructive pulmonary disease (COPD). That condition, which causes severe difficulty in breathing - most often in cigarette smokers - affects 12 million people in the United States. http://www.physorg.com/news147956534.html Medicine & Health Mon, 08 Dec 2008 11:02:14 EST news147956534 Scientists have identified 12 new genes that are somewhat strange bedfellows: Some link gallstones and blood cholesterol levels, others link melatonin and sleep patterns to small increases in glucose levels and larger jumps in the risk of diabetes. http://www.physorg.com/news147885016.html Medicine & Health Sun, 07 Dec 2008 15:10:16 EST news147885016 A new study presages a real aim of genetics: to look at whole populations to in order determine the significance of individual genetic variants for individual health. The research team, whose work is published in Nature Genetics, find six novel genetic variants that are associated with lipid levels, a common indicator of heart or artery disease. http://www.physorg.com/news147884469.html Medicine & Health Sun, 07 Dec 2008 15:01:09 EST news147884469 Diabetes and high levels of blood sugar may be linked to abnormalities in a person's body clock and sleep patterns, according to a genome-wide association study published today in the journal Nature Genetics. http://www.physorg.com/news147881709.html Medicine & Health Sun, 07 Dec 2008 14:15:09 EST news147881709 More than 95 per cent of men who took degarelix for prostate cancer saw their testosterone levels fall dramatically as early as three days after they started treatment, according to a paper in the December issue of BJU International. http://www.physorg.com/news147529873.html Medicine & Health Wed, 03 Dec 2008 12:31:13 EST news147529873 A study published in the November issue of the Journal of Alzheimer's Disease provides an insight into normal, physiological levels and association between proteins involved in development of Alzheimer's disease. A group of scientists and physicians from the University of Washington and Puget Sound Veterans' Affairs Health Care System in Seattle, in collaboration with groups from the University of Pennsylvania and the University of California San Diego, performed a study in cognitively normal and generally healthy adults, from young to old (age range 21-88 years), of both genders, measuring levels of different brain-derived molecules associated with Alzheimer's disease. http://www.physorg.com/news147446100.html Medicine & Health Tue, 02 Dec 2008 13:15:00 EST news147446100 By discovering the meaning of a rare mineral that can be used to track ancient climates, Binghamton University geologist Tim Lowenstein is helping climatologists and others better understand what we're probably in for over the next century or two as global warming begins to crank up the heat - and, ultimately, to change life as we know it. http://www.physorg.com/news147373416.html Space & Earth Mon, 01 Dec 2008 17:03:36 EST news147373416 If you think your levels of "good cholesterol" are good enough, a new study published in the December 2008 issue of The FASEB Journal suggests that you may want to think again. In the report, researchers from the University of Chicago challenge the conventional wisdom that simply having high levels of good cholesterol (HDL) and low levels of bad cholesterol (LDL) is necessary for good heath. Instead, they show that the good cholesterol has varying degrees of quality and that poor quality HDL is actually bad for you. http://www.physorg.com/news147355528.html Medicine & Health Mon, 01 Dec 2008 12:05:28 EST news147355528 Mercury levels in fish are prompting widespread consumption advisories and uncertainty among consumers over which species are safe to eat. Now researchers at North Carolina State University have developed a model that will help scientists and regulators around the country predict which areas are likely to have fish with high mercury levels - a breakthrough that should help officials address public uncertainty by developing health advisories for specific water bodies and fish species. http://www.physorg.com/news147354867.html Space & Earth Mon, 01 Dec 2008 11:54:27 EST news147354867 Chronic pancreatitis (CP) is a chronic clinical disorder characterized by irreversible damage to the pancreas, the development of histologic evidence of inflammation and fibrosis, and eventually the destruction and permanent loss of exocrine and endocrine tissue. Imaging or function tests may not reveal early CP, and the results of these tests do not necessarily correlate with each other. http://www.physorg.com/news147352040.html Medicine & Health Mon, 01 Dec 2008 11:07:20 EST news147352040 A new and insidious environmental threat has been detected in North American lakes by researchers from Queen's and York universities. http://www.physorg.com/news147015868.html Biology Thu, 27 Nov 2008 13:44:28 EST news147015868 When mice that lack steroid receptor-2 (SRC-2) - a master regulator gene called a coactivator - fast for a day, their blood sugar levels plummet. If they go another day without food, they will die. http://www.physorg.com/news147015809.html Medicine & Health Thu, 27 Nov 2008 13:43:29 EST news147015809