Sex Differences In Heart Disease May Be Due To Enzyme That Breaks Down Fat
...pase in men than in women. We asked the question, does hepatic lipase accountfor these lipid differences in men and women, and, if so, to what extent?" addsHokanson, research scientist in the department of medicine at the University ofWashington, Seattle. Hokanson's research -- the first to focu...Research: Breast Cancer Gene Screening Not Warranted For All
... known they are carriers,she said. Being a carrier does not necessarily mean a woman will develop breastcancer even though the gene boosts her chances. King, Newman and others then at the University of California at Berkeleymapped the BRCA1 gene in 1990. University of Utah and National Institute...Research Finds That Watching TV Helps Kids Put On Pounds
...evision watched by American children increases, so does theirweight. As reported in the March 25 issue of the Journal of the American MedicalAssociation (JAMA), analysis completed using the results of the Third National Health and Nutrition Examination Survey (NHANES III)indicates that one quarter...Butterfly Wings, Beetle Horns Teach Biologists Basic Lesson In Development's Laws
...rphosis they were "closedsystems." An insect pupa does not feed and instead contains a fat body thatprovides the only nutrition for the developing adult animal, making the resultsof competition far more clear-cut. "Such competition would be more difficult to detect in organisms suchas mammals t...... adaptations of Australopithecus and Homo. And she does this using a new method for paleoanthro- pology. But I fear that because most paleoanthropologists, like myself, are neither mathematicians nor engineers they will find her method difficult to follow and thus her conclusions won't receive the recogn...Insect Taste Buds Target Of Control Method
...pest of corn in the United States. While its larva does most of the damage, this occurs beneath the groun...ble. Taste is very critical to insects. Mullin does not know what insects perceive as taste, but he does know that chemicals considered sweet-tasting b...Rapid Progress Reported On New Class Of Anti-Cancer Drugs
...sium to function, while geranylgeranyl transferase does not -- a differencethat might also offer clues to new inhibitors. In his prepared ACS presentation, Casey also cited advances by Beese andgraduate student Steve Long in obtaining the first crystallographic structuresof the FTase enzyme that i...Tiny Worm Reveals Workings Of Suspected Tumor Protein
...r the first time, the study demonstrates what p300 does in a liveorganism. It also suggests a mechanism fo...00acts when a cell begins to differentiate, and it does so for most of the worm'stissues. This may provide insight into how adenovirus E1A corrupt...Kaposi's Sarcoma Caused By Virus Usually Transmitted Through Homosexual Sex, According To UCSF Study
...and a co-author of the study. "Our finding does not mean that HHV-8 is only transmitted via homose...robiologist andsenior author of the study. "But it does suggest that in the population that isoverwhelmingly the most likely to develop Kaposi's sarcoma, th...Microchip Sensor Detects Bacteria
..., the water supply or on the battlefield before it does damage has never been reliable or fast enough to prevent death, illness or economic loss. As just one example, last year a Columbus, Neb., beef-processing plant was forced to recall 25 million pounds of hamburger when less than a speck of bacteria w...Learning About Evolution Critical For Understanding Science
...ciate their own place in the world." The guidebook does not attempt to refute the ideas of those who oppose theteaching of evolution. Rather, it points out that most religious denominations in the United States do not view evolution as being at odds with their understanding of human origins. The idea th...No Ode To Joy From Food Scientists Over New Edition
...ers use such pesticides. Joy : Organic produce does not need to be washed. Fact : All produce is s... It is not safe to use raw eggs in any recipe that does not includethorough cooking. Joy : A cooking temperature of 155 F is high enough to kill Esche...Evaluation Of The Two Types Of Cardiac Pacemakers Indicates Only Modest Differences In Value
...heart beat is initiated at theappropriate rate but does not make it through the electrical system. Patientswere assessed at three, nine and 18 months after enrollment in the study....Researchers Discover Existing Drugs May Prevent Enlarged Hearts
...or endocrine disorders ormutations. What the heart does is try to compensate for that damage byincreasing its size to achieve greater cardiac output," said Olson. Initially this is beneficial, but ultimately the heart mayenlarge too much, causing congestive heart failure that can lead tosudden dea...Fat Is Back, Healthy Diets Need Fat
... and variety contribute as much to diet quality as does low fat content,'' Drewnowski said. "A monotonous diet of two or three low-fat foods may do wonders for your cholesterol levels, but will do nothing for your mental health or your quality of life. The premier U.S.D.A. recommendation is to enjoy a v...Duke Researchers Genetically Engineer Mice To Block Heart Enlargement
... myocardial hypertrophy. The heart gets bigger, it does not add any newmuscle, and the existing muscle cells simply get larger. Although the additionalmuscle mass helps at first, over time the heart walls can harden and hamperrather than bolster the pumping action. This leads to congestive heart failure. ...UPMC Reports On New Liver Assist Device
...suggest that the bio-artificialliver assist device does in fact have a marked effect on the course of acuteliver failure. The intercranial pressure also improved in the treated animals. The anticipated phase I human trials of the device would have theprimary aim of ensuring the safety of the dev...... apoE3 promotes nerve cell outgrowth,whereas apoE4 does not. Most people have either two apoE3 genes, two apoE4s or one of each. TheapoE2 gene is much rarer. Inheriting two apoE4s seems to be the worst luck ofthe draw. As well as lowering the age at which Alzheimer's disease develops,this permutat...Bears Cubed: Virginia Tech Studies Three Bears, And Three Bears, And Three More Bears
... asks. "The tiny claws are the only parts that she does not digest andthat get passed through her intestines." "Black bears are one of nature's few real hibernators," Vaughan points out."That is, they do not eat, drink, urinate, or defecate for three to five monthswhile denning. What is so incredible is t......etent barrier by 19 days. Normally a skin barrier does not develop inrats until 21 days. A distinct SC was present in treated rats while those in the controlgroups lacked a well-defined SC. The activity of two enzymes involved in theformation of the SC were also increased in fetal rats with acti...