http://medicineworld.org/news/research-news.html MedicineWorld.Org brings daily research news from various sources to keep you updated on the latest events in the world on this topic. Medicineworld research news service is the most comprehensive research news service on the internet. We keep an archive of previous few days of news on this site. Please go down through the list to find the older news items Tue, 13 Jan 2009 05:40:58 GMT en-us http://medicineworld.org/images/research-news.jpg http://medicineworld.org/news/research-news.html 94 103 http://medicineworld.org/stories/lead/1-2009/new-weapon-in-battle-against-hiv-infection.html http://medicineworld.org/stories/lead/1-2009/new-weapon-in-battle-against-hiv-infection.html Tue, 13 Jan 2009 05:40:58 GMT Scientists have discovered a potentially important new resistance factor in the battle against HIV: blood types. An international team of scientists from Canadian Blood Services, The Hospital for Sick Children (SickKids) and Lund University in Sweden have discovered that certain blood types are more predisposed to contracting HIV, while others are more effective at fending it off........ ]]> http://medicineworld.org/stories/lead/1-2009/new-clues-to-understanding-cancer.html http://medicineworld.org/stories/lead/1-2009/new-clues-to-understanding-cancer.html Tue, 13 Jan 2009 05:40:58 GMT In the 13th January print edition of the journal Current Biology, Instituto Gubenkian de Ciencia scientists provide insight into an old mystery in cell biology, and offer up new clues to understanding cancer. Ins Cunha Ferreira and Mnica Bettencourt Dias, working with scientists at the universities of Cambridge, UK, and Siena, Italy, unravelled the mystery of how cells count the number of centrosomes, the structure that regulates the cell's skeleton, controls the multiplication of cells, and is often transformed in cancer........ ]]> http://medicineworld.org/stories/lead/1-2009/nanoparticles-based-drug-delivery-system.html http://medicineworld.org/stories/lead/1-2009/nanoparticles-based-drug-delivery-system.html Tue, 13 Jan 2009 05:40:58 GMT A tiny particle syringe composed of polymer layers and nanoparticles may provide drug delivery that targets diseased cells without harming the rest of the body, as per a team of chemical engineers. This delivery system could be robust and flexible enough to deliver a variety of substances. "People probably fear the effects of some therapys more than they fear the disease they treat," says Huda A. Jerri, graduate student, chemical engineering. "The drugs are poison. Treatment is a matter of dosage so that it kills the cancer and not the patient. Targeted therapy becomes very important"........ ]]> http://medicineworld.org/cancer/lead/1-2009/genes-and-crohns-disease.html http://medicineworld.org/cancer/lead/1-2009/genes-and-crohns-disease.html Tue, 13 Jan 2009 05:40:58 GMT Scientists at McGill University, the Research Institute of the McGill University Health Centre (RI MUHC) and the McGill University and Gnome Qubec Innovation Centre, along with colleagues at other Canadian and Belgian institutions, have discovered DNA variations in a gene that increases susceptibility to developing Crohn's disease. Their study was reported in the recent issue of the journal Nature Genetics....... ]]> http://medicineworld.org/cancer/lead/1-2009/for-fats-longer-may-not-be-better.html http://medicineworld.org/cancer/lead/1-2009/for-fats-longer-may-not-be-better.html Tue, 13 Jan 2009 05:40:58 GMT Scientists have uncovered why some dietary fats, specifically long-chain fats, such as oleic acid (found in olive oil), are more prone to induce inflammation. Long-chain fats, it turns out, promote increased intestinal absorption of pro-inflammatory bacterial molecules called lipopolysaccharides (LPS). This study appears in the recent issue of JLR....... ]]> http://medicineworld.org/cancer/lead/1-2009/natures-powerful-nanoscale-motors.html http://medicineworld.org/cancer/lead/1-2009/natures-powerful-nanoscale-motors.html Tue, 13 Jan 2009 05:40:58 GMT Peering at structures only atoms across, scientists have identified the clockwork that drives a powerful virus nanomotor. Because of the motor's strength--to scale, twice that of an automobile--the new findings could inspire engineers designing sophisticated nanomachines. In addition, because many virus types may possess a similar motor, including the virus that causes herpes, the results may also assist pharmaceutical companies developing methods to sabotage virus machinery........ ]]> http://medicineworld.org/cancer/lead/1-2009/genetic-determinants-of-adhd.html http://medicineworld.org/cancer/lead/1-2009/genetic-determinants-of-adhd.html Tue, 13 Jan 2009 05:40:58 GMT A special issue of American Journal of Medical Genetics (AJMG): Part B: Neuropsychiatric Genetics presents a comprehensive overview of the latest progress in genetic research of Attention Deficit/Hyperactivity Disorder (ADHD). The issue covers major trends in the field of complex psychiatric genetics, underscoring how genetic studies of ADHD have evolved, and what approaches are needed to uncover its genetic origins........ ]]> http://medicineworld.org/cancer/lead/1-2009/blood-vessels-to-combat-obesity.html http://medicineworld.org/cancer/lead/1-2009/blood-vessels-to-combat-obesity.html Tue, 13 Jan 2009 05:40:58 GMT Mice exposed to low temperatures develop more blood vessels in their adipose tissue and metabolise body fat more quickly, as per a newly released study from Karolinska Institutet. Researchers now hope to learn how to control blood vessel development in humans in order to combat obesity and diabetes........ ]]> http://medicineworld.org/cancer/lead/1-2009/seeing-brain-aging-before-symptoms-appear.html http://medicineworld.org/cancer/lead/1-2009/seeing-brain-aging-before-symptoms-appear.html Tue, 13 Jan 2009 05:40:58 GMT UCLA researchers have used innovative brain-scan technology developed at UCLA, along with patient-specific information on Alzheimer's disease risk, to help diagnose brain aging, often before symptoms appear. Reported in the recent issue of Archives of General Psychiatry, their study may offer a more accurate method for tracking brain aging........ ]]> http://medicineworld.org/cancer/lead/1-2009/how-do-they-do-it.html http://medicineworld.org/cancer/lead/1-2009/how-do-they-do-it.html Tue, 13 Jan 2009 05:40:58 GMT Stem cells are the body's primal cells, retaining the youthful ability to develop into more specialized types of cells over a number of cycles of cell division. How do they do it? Researchers at the Carnegie Institution have identified a gene, named scrawny, that may be a key factor in keeping a variety of stem cells in their undifferentiated state. Understanding how stem cells maintain their potency has implications both for our knowledge of basic biology and also for medical applications. The results would be reported in the January 9, 2009 print edition of Science....... ]]> http://medicineworld.org/cancer/lead/1-2009/getting-better-results-from-anxiety-treatment.html http://medicineworld.org/cancer/lead/1-2009/getting-better-results-from-anxiety-treatment.html Tue, 13 Jan 2009 05:40:58 GMT A network of emotion-regulating brain regions implicated in the pathological worry that can grip patients with anxiety disorders may also be useful for predicting the benefits of therapy. A newly released study appearing online Jan. 2 reports that high levels of brain activity in an emotional center called the amygdala reflect patients' hypersensitivity to anticipation of adverse events. At the same time, high activity in a regulatory region known as the anterior cingulate cortex is linked to a positive clinical response to a common antidepressant medication. The study will appear in an upcoming issue of the American Journal of Psychiatry....... ]]> http://medicineworld.org/cancer/lead/1-2009/chronic-pancreatitis-pain-relief-with-antioxidants.html http://medicineworld.org/cancer/lead/1-2009/chronic-pancreatitis-pain-relief-with-antioxidants.html Tue, 13 Jan 2009 05:40:58 GMT Antioxidant supplementation was found to be effective in relieving pain and reducing levels of oxidative stress in patients with chronic pancreatitis (CP), reports a newly released study in Gastroenterology CP is a progressive inflammatory disease of the pancreas in which patients experience abdominal pain (in early stage) and diabetes and maldigestion (in late stage). Pain is the major problem in 90 percent of patients with CP and currently, there is no effective medical treatment for pain relief. Gastroenterology is the official journal of the American Gastroenterological Association (AGA) Institute........ ]]> http://medicineworld.org/cancer/lead/12-2008/components-of-grape-seed-may-control-leukemia.html http://medicineworld.org/cancer/lead/12-2008/components-of-grape-seed-may-control-leukemia.html Tue, 13 Jan 2009 05:40:58 GMT An extract from grape seeds forces laboratory leukemia cells to commit cell suicide, as per scientists from the University of Kentucky. They observed that within 24 hours, 76 percent of leukemia cells had died after being exposed to the extract. The investigators, who report their findings in the January 1, 2009, issue of Clinical Cancer Research, a journal of the American Association for Cancer Research, also teased apart the cell signaling pathway linked to use of grape seed extract that led to cell death, or apoptosis. They observed that the extract activates JNK, a protein that regulates the apoptotic pathway........ ]]> http://medicineworld.org/cancer/lead/12-2008/anti-fungal-drug-against-asthma.html http://medicineworld.org/cancer/lead/12-2008/anti-fungal-drug-against-asthma.html Tue, 13 Jan 2009 05:40:58 GMT Some patients with severe asthma who also have allergic sensitivity to certain fungi enjoy great improvements in their quality of life and on other measures after taking an antifungal drug, as per new research from The University of Manchester in England. The findings were published in the first issue for January of the American Thoracic Society's American Journal of Respiratory and Critical Care Medicine....... ]]> http://medicineworld.org/cancer/lead/12-2008/what-triggers-alzheimers-disease.html http://medicineworld.org/cancer/lead/12-2008/what-triggers-alzheimers-disease.html Tue, 13 Jan 2009 05:40:58 GMT A slow, chronic starvation of the brain as we age may be a main triggers of a biochemical process that causes some forms of Alzheimer's disease. A newly released study from Northwestern University's Feinberg School of Medicine has found when the brain doesn't get enough sugar glucose -- as might occur when cardiovascular disease restricts blood flow in arteries to the brain -- a process is launched that ultimately produces the sticky clumps of protein that appear to be a cause of Alzheimer's........ ]]>