UI Laboratory Develops Procedure To Study DNA Replication
...s. This separation has been difficult toachieve in previous replication systems. Using his technique, Wold hopes that his lab and others can begin to understandwhat causes some cells to mutate. DNA replication is a complex process that isvery accurate and highly regulated. Errors in DNA replication can lead t...Stanford Chemical Engineer Chaitan Khosla Receives Alan T. Waterman Award From NSF
...h degrees are in chemical engineering. His previous honors include the Camille and Henry Dreyfus NewInvestigator Award (1991); a David and Lucile Packard Foundation Fellowship inScience and Engineering (1994); and the Allan P. Colburn Award from the AmericanInstitute of Chemical Engineers (1997). He ...Tumor Oxygen Level And Blood Flow Fluctuate, Duke Scientists Discover
...e rapidly.The Duke animal study, which contradicts previous assumptions about tumors,could be important because the two major cancer treatments, radiation andchemotherapy, depend on a constant high oxygen level and steady blood flowwithin a tumor, scientists said. "These fluctuations in oxygen level and bloo...New Discovery May Lead To Control Of Production Of Key Proteins
...heart function. The new results build upon previous discoveries by Brewer and hiscolleagues, dating back to 1986. One key discovery, in 1991, was of a proteinthat they called AUF1, which binds to the messenger RNA. "It has been known for some number of years that there are enzymes thatare invo...... this sentence and nearly 100 timeslarger than the previous bacterial record-holder. In addition to its giant size,the new microbe is an exotic organism that provides firmer evidence of couplingbetween two key environmental cycles thought until very recently to be mutuallyexclusive in the ocean: the sulfur a...Dietary Lutein Inhibits Mammary Tumor Growth And Normalizes Immune Balance In Tumor-Bearing Mice
...ining aneffective anti-tumor response. Dr. Chew's previous research established that dietary lutein from marigoldextract inhibited the growth of mammary tumors in mice. In addition, theyshowed that lutein can regulate gene activity in immune cells. Further researchis needed to confirm speculation that lute...Study Suggests New Approach To Asthma
...oids, which suppress allergicsymptoms. Holtzman's previous work has suggested a way to dampen the JAK/STAT pathway andhopefully to alleviate asthma. He and his colleagues discovered that adenovirus,which causes respiratory infections, can sabotage the airway cells' inflammatoryresponse by preventing Stat1 fr...Study Bolsters Theory Of Plant Nutrients Trapped In Soil
...utrients to grow. In his previous work, Patrick G. Hatcher, professor of chemistry at Ohio State, proved that molecules ofhumic acid can trap environmental contaminants. This study proved that humic acid can a...UF Researcher: Athletes Likely To Have Symptoms Of Eating Disorders
...Carronfrom The University of Western Ontario. In a previous study, published in December's Journal of Sport Behavior,Hausenblas concluded that participants in athletic activities have betterbody images, higher levels of self-esteem and more interpersonal trust thannon-athletes. Hausenblas said these qualities...Plant-Based Fat Inhibits Growth Of Breast-Cancer Cell Line, UB Researchers Show
...y of an enzyme called PP2A, which was found in his previous study to playa role in reducing prostate-cancer cell growth. Additional researchers on the study were A. Downie, UB graduate studentin nutrition, and Carol S. Fink, Ph.D., UB clinical assistant professor ofnutrition....Purdue Students Win $4,500 For Vegetarian Gelatin Dessert
...an farmersin finding new ways to use soybeans. Two previous winners, soybean crayons andsoybean candles, are very good examples of the success of this program," Ludwigsays. "This year's entries are very timely and exciting in light of the newhealth-claim labeling proposal for soy products that the FDA is curr...Breast Milk Of Women Who Eat Lake Ontario Fish Contains High Levels Of PCBs, UB Study Finds
...nvironmental Research. "This work supports previous studies that also indicate that lactationis a primary means of removal of these persistent contaminants in the female,"said Paul J. Kostyniak, Ph.D., chair of the UB Department of Clinical LaboratoryScience in the School of Medicine and Biomedical Sc...UT Southwestern Researchers Find Way To Control Gene Activity, Opening Way For Cancer Drugs
...were able to inhibit the activity ofthe enzyme. In previous investigations by other scientists trying to usesynthetic bits of DNA to block gene activity, only about one in 10 or 20 wassimilarly successful. Beyond targeting telomerase, the study's findings also might aid in designingdrugs for other diseases an......yproduct of the body's metabolism of food. Several previous studieshave linked high blood levels of homocysteine with increased risk for heartattack and stroke. In the body, folate and other B vitamins break down homocysteine. Therefore,high blood levels of folate, found naturally in green leafy vegetables, ...Unprecedented View Of RNA Structure Captured
...se secondarystructure had already been detected by previous scientists, but which alsopresented solid evidence...h that knowledge, Draper said he can now return to previous hypotheses aboutthe nature of RNA and see long-standing questions in a new light. The insightshould ...Aging Vehicle Fleet Polluting The Air
... mid-1980s tend todeteriorate more slowly than the previous generation of vehicles, Rodgers says.But people are driving their vehicles longer now, even in excess of 300,000miles. So Atlanta can expect to see an increase in catastrophic failures invehicle emissions control systems as its fleet ages, Rodgers ex...Researchers Find Protein Abnormality Associated With Alzheimer's Disease
... Pharmaceuticals in Tarrytown, NY. In previous research, Fallon showed that agrin contributes to developmentof the connection between nerve and muscle cells. Agrin causes "clustering"of neurotransmitter receptors on the muscle cell, to ensure propercommunication with the nervous...The Reason The French Have Low Levels Of Heart Disease
... lung cancer risk and smoking. The authors examine previous explanations of the "French paradox" including the under certification of heart disease deaths by French doctors (which they say could account for about 20 per cent of the difference in mortality rates); smoking; alcohol intake (especially red wine);...Biologists work to preserve rainforests endangered plants
...ve techniques to collect endangered plants. Their previous field siteshave been in Plair's homeland of Trinidad, and much of the laboratory work isdone at the Cincinnati Zoo and Botanical Garden's Center for Research ofEndangered Wildlife (CREW). Pence is head of the Plant Conservation Division atCREW and an...Stanford launches interdisciplinary initiative in the biological sciences
...e is concentrated. He wasfamiliar with Robertson's previous collaboration with Brenner, and asked him ifhe would be interested in working together. Robertson and his students were ableto apply many of the techniques he had developed with Brenner to the new studyand they also custom-built a video-microscope ca...