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. Researchers from the University of Alabama at Birmingham (UAB) have discovered that restricting consumption of glucose, the most common dietary sugar, can extend the life of healthy human-lung cells and speed the death of precancerous human-lung cells, reducing cancer's spread and growth rate. http://www.physorg.com/news180298600.html Medicine & Health Thu, 17 Dec 2009 18:57:20 EST news180298600 (PhysOrg.com) -- A new paper from MIT biology professor Leonard Guarente strengthens the link between longevity proteins called sirtuins and the lifespan-extending effects of calorie restriction. http://www.physorg.com/news180036887.html Medicine & Health Mon, 14 Dec 2009 19:00:02 EST news180036887 Scientists searching for the secrets of how calorie-restricted diets increase longevity are reporting discovery of proteins in the fat cells of human volunteers that change as pounds drop off. The proteins could become markers for monitoring or boosting the effectiveness of calorie-restricted diets - the only scientifically proven way of extending life span in animals. Their study appears online in ACS' Journal of Proteome Research. http://www.physorg.com/news179589014.html Medicine & Health Wed, 09 Dec 2009 14:30:02 EST news179589014 In spite of their genetic similarity to humans, chimpanzees and great apes have maximum lifespans that rarely exceed 50 years. The difference, explains USC Davis School of Gerontology Professor Caleb Finch, is that as humans evolved genes that enabled them to better adjust to levels of infection and inflammation and to the high cholesterol levels of their meat rich diets. http://www.physorg.com/news178988828.html Medicine & Health Wed, 02 Dec 2009 16:00:02 EST news178988828 Getting the correct balance of proteins in our diet may be more important for healthy ageing than reducing calories, new research funded by the Wellcome Trust and Research into Ageing suggests. http://www.physorg.com/news178984012.html Medicine & Health Wed, 02 Dec 2009 14:40:02 EST news178984012 (PhysOrg.com) -- If people were given a pill to make them live longer what would they do with that extra time? According to a new study by University of Queensland researchers, they would spend it with their family. http://www.physorg.com/news178815180.html Medicine & Health Mon, 30 Nov 2009 15:20:04 EST news178815180 (AP) -- Hardware store owner and heart attack survivor Leo Aeikens spent most of his life with a hankering for meat, cheese and ice cream. But an ambitious effort aimed at making his entire southern Minnesota city healthier has Aeikens calling himself a vegan and weighing 25 pounds less in just 10 months. http://www.physorg.com/news174734632.html Medicine & Health Wed, 14 Oct 2009 10:24:17 EST news174734632 Investigators at Burnham Institute for Medical Research (Burnham) have found that the conserved protein d4eBP modulates cardiac aging in Drosophila (fruit flies). The team also found that d4eBP, which binds to the protein dEif4e, protects heart function against aging. This research enhances our understanding of the TOR and FoxO signaling pathways and provides a more specific target for further research into cardiac aging. Since the TOR and FoxO genes are conserved between Drosophila and humans, this work may lead to new, tissue-specific methods to protect the heart. The paper was published in the journal Aging Cell. http://www.physorg.com/news172162462.html Medicine & Health Mon, 14 Sep 2009 16:20:26 EST news172162462 A new study from the University of Missouri may shed light on how to increase the level and quality of activity in the elderly. In the study, published in this week's edition of Public Library of Science - ONE, MU researchers found that gene therapy with a proven "longevity" gene energized mice during exercise, and might be applicable to humans in the future. http://www.physorg.com/news169915661.html Medicine & Health Wed, 19 Aug 2009 16:10:02 EST news169915661 Johns Hopkins scientists have tracked down a powerful set of cells in bladder tumors that seem to be primarily responsible for the cancer's growth and spread using a technique that takes advantage of similarities between tumor and organ growth. The findings, reported in the July Stem Cells, could help scientists develop new ways of finding and attacking similar cells in other types of cancer. http://www.physorg.com/news168786163.html Medicine & Health Thu, 06 Aug 2009 14:03:15 EST news168786163 Temperature explains much of why cold-blooded organisms such as fish, amphibians, crustaceans, and lizards live longer at higher latitudes than at lower latitudes, according to research published this week in the Proceedings of the National Academy of Sciences (PNAS) online. Assistant Professor Dr. Stephan Munch and Ph.D. candidate Santiago Salinas, both of Stony Brook University's School of Marine and Atmospheric Sciences (SoMAS), found that for a diverse range of species whose body temperatures vary with the temperature of their surroundings, ambient temperature is the dominant factor controlling geographic variation of lifespan within species. http://www.physorg.com/news167933883.html Biology Mon, 27 Jul 2009 17:18:34 EST news167933883 (AP) -- Two new techniques to preserve and transplant ovaries might give women a better chance to fight their biological clocks and have children when they are older, doctors announced Monday. http://www.physorg.com/news165490159.html Medicine & Health Mon, 29 Jun 2009 10:30:02 EST news165490159 When humans and animals delay reproduction because food or other resources are scarce, they may live longer to increase the impact of reproduction, according to a new study by University of Minnesota researchers published in the June 25 issue of PLoS (Public Library of Science) One. http://www.physorg.com/news165147535.html Biology Thu, 25 Jun 2009 11:19:26 EST news165147535 Experiment after experiment confirms that a diet on the brink of starvation expands lifespan in mice and many other species. But the molecular mechanism that links nutrition and survival is still poorly understood. Now, researchers at the Salk Institute for Biological Studies have identified a pivotal role for two enzymes that work together to determine the health benefits of diet restriction. http://www.physorg.com/news165068957.html Biology Wed, 24 Jun 2009 15:00:04 EST news165068957 A protein that plays a key role in tumor formation, oxygen metabolism and inflammation is involved in a pathway that extends lifespan by dietary restriction. The finding, which appears in the May 22, 2009 edition of the on-line journal PLoS Genetics, provides a new understanding of how dietary restriction contributes to longevity and cancer prevention and gives scientists new targets for developing and testing drugs that could extend the healthy years of life. http://www.physorg.com/news162215715.html Medicine & Health Fri, 22 May 2009 12:55:40 EST news162215715 German scientists said Wednesday they had tweaked organic light-emitting diodes (OLEDs) -- the materials used in flat-screen TVs, laptop computer screens and mobile phone displays -- to become flexible, energy-efficient sources of white light. http://www.physorg.com/news161442237.html Technology Wed, 13 May 2009 14:04:47 EST news161442237 Yuan et al. have identified another anti-cancer effect of the "longevity" protein SIRT1. By speeding the destruction of the tumor promoter c-Myc, SIRT1 curbs cell division. The study will be published online April 13 and will appear in the April 20 print issue of the Journal of Cell Biology. http://www.physorg.com/news158835232.html Biology Mon, 13 Apr 2009 09:54:19 EST news158835232 Johns Hopkins researchers have discovered a new energy-making biochemical twist in determining the lifespan of yeast cells, one so valuable to longevity that it is likely to also functions in humans. http://www.physorg.com/news157105752.html Biology Tue, 24 Mar 2009 09:29:55 EST news157105752 The theory that a higher metabolism means a shorter lifespan may have reached the end of its own life, thanks to a study published in the journal Physiological and Biochemical Zoology. The study, led by Lobke Vaanholt (University of Groningen, The Netherlands), found that mice with increased metabolism live just as long as those with slower metabolic rates. http://www.physorg.com/news155832014.html Biology Mon, 09 Mar 2009 15:43:17 EST news155832014 We know that lifespan can be extended in animals by restricting calories such as sugar intake. Now, according to a study published in the journal PLoS Genetics, Université de Montréal scientists have discovered that it's not sugar itself that is important in this process but the ability of cells to sense its presence. http://www.physorg.com/news155550999.html Chemistry Fri, 06 Mar 2009 08:36:51 EST news155550999 Women who have more years of fertility (the time from first menstruation to menopause) have a lower risk of developing Parkinson`s disease than women with fewer years, according to a large, new study by researchers at Albert Einstein College of Medicine of Yeshiva University. http://www.physorg.com/news154803926.html Medicine & Health Wed, 25 Feb 2009 17:07:41 EST news154803926 Even though your grandparents` old photo albums are yellowed and grainy, they`re still there for you and your family to enjoy. But will your grandchildren be able to say the same of the digital photo albums you`re compiling today? Rapid advances in computer technology have left past hardware and software in the dust. If we`re creating documents no one will be able to access, has our Information Age created a digital dark age? http://www.physorg.com/news153683275.html Technology Thu, 12 Feb 2009 17:48:40 EST news153683275 Inbreeding can unexpectedly extend male lifespan. Insect experiments described in the open access journal BMC Evolutionary Biology have shown that, in seed beetles, inbreeding causes males to live longer, while shortening female lifespan. http://www.physorg.com/news153147399.html Biology Fri, 06 Feb 2009 12:57:37 EST news153147399 (PhysOrg.com) -- Heinrich Jasper, assistant professor of biology at the University of Rochester, has won a $900,000 Senior Fellow Award from the Ellison Medical Foundation for his work showing how stress affects stem cell function, leading to symptoms of aging. http://www.physorg.com/news152813533.html Biology Mon, 02 Feb 2009 16:12:45 EST news152813533 (PhysOrg.com) -- Language in humans has evolved culturally rather than genetically, according to a study by UCL (University College London) and US researchers. By modelling the ways in which genes for language might have evolved alongside language itself, the study showed that genetic adaptation to language would be highly unlikely, as cultural conventions change much more rapidly than genes. Thus, the biological machinery upon which human language is built appears to predate the emergence of language. http://www.physorg.com/news151671102.html Biology Tue, 20 Jan 2009 10:52:58 EST news151671102 A group of scientists who set out to study sex pheromones in a tiny worm found that the same family of pheromones also controls a stage in the worms' life cycle, the long-lived dauer larva. http://www.physorg.com/news136036770.html Biology Wed, 23 Jul 2008 12:59:30 EST news136036770