Drug stops blinding blood vessel growth in mice
...tion, the leading causes of blindness in young and old people,respectively, in developed countries. Human trials of the drug, called PKC 412, could begin early next year,says Peter A. Campochiaro, M.D., senior author of the study and a professor ofophthalmology and neuroscience at Hopkins. ...USGS study casts doubt on role of fire suppression in causing catastrophic shrubland wildfires
...erhour. Such wildfires burn through both young and old age classes of shrubland,which means, said Keeley, that attempts to alter vegetation age structure acrosslarge landscapes in the hope of managing these wind-driven fires is unlikely tostop catastrophic fires....New Census report shows exponential growth in number of centenarians
...ocial Research. "The growing numbers of extremely old people give us theopportunity to examine their lives in more detail. By doing so, we will be ableto discover the genetic, medical, social, and behavioral factors contributing tolongevity and robustness in very advanced age." Suzman points out that s...SFVAMC-UCSF scientists solve a key protein structure
Completing a decades old quest by biochemists and biophysicists scattered aroundthe world, a multi-institutional team of researchers has discovered thestructure of Complex II, a protein essential to the production of energy withincells. Complex II is a generic name for one ...Common genes form new family tree for animals
...cular evidence to finally fell theanimal kingdom's old family tree. Writing this week in the British journal Nature, scientists from the Universityof Wisconsin-Madison, the University of Paris, Cambridge University and St.Petersburg University in Russia report the discovery of a common genetic themethat ...Molecular biologists prune branches from the animal family tree
...DNA, the master blueprint of life -- ispruning the old evolutionary tree. "Basically, we're redrawing the tree," says Jennifer Grenier, a Howard HughesMedical Institute (HHMI) associate at the University of Wisconsin-Madison. Grenier and HHMI investigator <AHREF="http://www.hhmi.org/science/genetic...Young rats challenged as model for blood vessel response in older people
...ate bioengineer says his experiments withyoung and old rats show that the response of their blood vessels...ation is so different as to suggest that young and old human patients mayneed different treatment based on age Dr. Norman R. Harris, assistant prof...CWRU physicists invent "supershielding" for MRI devices
...g with the desire forhigher-quality shielding, the old methods of shielding have not kept pace. Two years ago, Picker posed a shielding question to Brown and his research group at CWRU. Morich and Petropoulosformulated the specific problem. In response, the CWRU researchers came up with a surprising theo...$6.75 Million to extend primate studies of diet and aging
...ude: Signs that good health can be extended into old age. Diabetes, forexample, has been held at bay in...eys - which, in captivity, can live to be 40 years old --are only now entering late middle age, a definitive answer to the bigquestion of the link between ...A new view of visual system development
... visual cortex, ending up with equal shares. "The old theory is that inputs from the two eyes start out completelyoverlapping," explains Katz, "and they fight it out and separate into twoindependent territories with no favorites in the battle." The theory posits thatthis sorting-out process can occur be...Genes play a bigger role in women's depression than in men's, twin study finds
... Council Twin Registry. They wereat least 18 years old at that time. Between 1992 and 1993, each member of 2,685twin pairs was interviewed over the telephone. The highly trained layinterviewers used a list of questions designed to assess whether the subjectshad ever experienced symptoms of various psychi......may be in the female's best interest to get rid of old spermbecause it could get damaged if its stored for too long," says Price. But forthe male, the truth is in the numbers: it is to his evolutionary advantage tofertilize as many eggs as possible and to prevent the fertilization of as manyeggs as poss...U-M scientists identify genes that make blood "thicker" and more likely to clot as we get older
...ys. "Others have studied either very young or very old animals, but alongitudinal study is the only way t... increased coagulationis associated with a healthy old age in some people, but leads to thromboses,strokes and cardiovascular disease in others. "Once we c...Children and environmental toxics: special symposium at New Orleans scientific meeting
...stant motion. Video studies of one- to three-year old youngsters show howthey can come in contact with environmental toxics, such as pesticides, whichmay subsequently contaminate their food. (G. Akland - Research TriangleInstitute, N.C.; ENVR 8; Sunday, Aug. 22, 9:35 a.m.; Convention Center, Room209. ...Mosquitoes have discriminating tastes, UF researchers find
...ite rightaway, there's a reason for that. Just any old spot won't do. They search the skin surface with their mouth parts till they find a site thatfeels or tastes good, then insert their stylet. The stylet moves through thetissue "like an oil-drilling rig" working around objects and turning at angles.Wh...Cockroaches beware! This house has been treated with catnip
...S, La., August 23 -- Researchers have confirmed an old wives' tale:Placing catnip around the house helps keep cockroaches away. Today at the national meeting of the American Chemical Society, the world'slargest scientific society, Iowa State University researchers Chris Peterson andJoel Coats, Ph.D., rep...Study details genetic basis of aging -- and how it might be delayed
...ing,extend life span and improve overall health in old age. The new study, Weindruch said, tends to support the idea that caloricrestriction works by slowing metabolism, the chemical processes by which livingorganisms and cells convert food to energy. In the process of metabolism, some toxic byproducts a...Primate genus sheds light on great ape and human origins, as reported in Science
...iscovering anexquisitely preserved 15 million year old partial skeleton of an ancient ape.The new genus ...y ancestor changes as new discoveries are made and old fossils arere-analyzed. The new fossil ape reported in Science prompted itsdiscoverers to take ano...DNA fingerprinting reveals surprise in wine-grape family tree
...as very practical significance both for preserving old and for developing new grapevine varieties," Mere...ountry. Even Gouais blanc's name, derived from the old French adjective "gou" -- a term of derision -- reveals its position of low esteem. "It is surprisi...... corescontaining ice between 500 and 140 000 years old from three sites in Greenland.To prevent contamination, they first disinfected the outside of each core usingultraviolet light, then searched the inner core for RNA from the tomato pathogenusing the polymerase chain reaction (PCR). Sure enough, the t...