Scientists Sift Through Trash In Search Of Perfect Landfill
...lythat landfills need not be "tombs" holding waste unchanged for decades. The study found that food decomposes relatively quickly. After six years in theMadison site, pasta, lima beans, peanuts and sunflower seeds all lost at leasthalf of their dry weight, and pasta almost completely vanished. In Florida, thef...Wake Forest Physicians Demonstrate How Gene-Diet Interaction Affects Cholesterol Absorption
...ly in the "normal" group, while remainingvirtually unchanged in the group with the variant gene. The difference wasstatistically significant. Absorption of cholesterol was lowest on the low fat diet, but thedifference between the gene groups was not significant. On the high saturatedfat diet, both gen...Mutations not the only gene defect that leads to cancer
...e function of those genes whose activation remains unchanged by methylation is unclear, though, as are the consequences of this methylation for the cell. We believe that methylation may contribute to the overall genetic instability in the tumor." Gene...New antioxidant vitamin RDAs better, but not good enough
... both men and women. The RDA for selenium remained unchanged at 55 micrograms for women, but dropped from 70 to 55 micrograms for men. "Going into this review, the goal was to identify levels of these micronutrients that would help prevent chronic disease, not just the amount needed to prevent deficiencies su...Jews are the genetic brothers of Palestinians, Syrians, and Lebanese
...analyzed the Y chromosome, which is usually passed unchanged from father to son, of more than 1,000 men worldwide. Throughout human history, alterations have occurred in the sequence of chemical bases that make up the DNA in this so-called male chromosome, leaving variations that can be pinpointed with modern ...Alcohol researchers suggest specific binding site for anesthetics and alcohols
... the altered receptors but reversibly activate the unchanged receptors. The researchers found this effect at a specific TM2 site in both glycine and GABAA receptor subunits. "While other possible explanations cannot be fully ruled out, our results are extremely suggestive that the binding of alcohols and ane...Scientists reveal new HIV vaccine target
...mmune response fully developed, the virus remained unchanged from the stock used to infect the animals. Shortly thereafter, the killer T-cell immune response that the researchers discovered began to combat the virus. Killer T cells are found throughout the body and are one of the immune system's most powerful...Increased consumption of whole grain foods associated with decreased risk of stroke
...on. This inverse association remained essentially unchanged with further adjustment for known CVD risk factors, including saturated fat and transfatty acids intake. The inverse relation was also consistently observed among subgroups of women who never smoked, did not drink alcohol, did not exercise regularly,...Deregulation will cause significant fluctuations in electricity prices, new study reveals
...le sulfur dioxide emissions will remain relatively unchanged despite higher electricity demands. That`s because current law prevents national sulfur dioxide emissions from growing. However, with higher electricity demands, generators will have to invest in new technologies to control sulfur dioxide emissions, ...Abnormalities in stress hormone response among alcoholics
... lengths of abstinence found they had a blunted or unchanged stress response following serotonergic stimulation. We also found that the stress hormone response in recovering alcoholics did not return to baseline levels as quickly as it did in age- and race-matched non-alcoholic comparison subjects. In other ...Career counseling for embryonic cells
...Interestingly, the QSulf1 gene remains essentially unchanged within the genomes of worms, flies, mice, and humans. "Evolution has seen fit to keep this protein around a long time," said Emerson. "What we see is the emerging picture of a fundamental player in the embryonic development of many types of organis...APS August/September journal hot picks
...ts functional properties have remained essentially unchanged despite 200 million years of evolution. Methodology: To determine the evolutionary origin and structure-function relationship of the human BSEP, a full-length clone of a marine skate (Raja erinacea), a 200-million year old vertebrate that shares 68....Fire and ice: An altered protein brings fever, chills
...ne system gene and its protein remain more or less unchanged through long periods of evolution, the implication is that the protein plays a central role in orchestrating immune defenses. If cryopyrin can be fitted into a broader picture of immune function as it developed over eons, more light may be shed on i...Researchers say gene discoveries could translate to health benefits, but consent should be updated
...lly served earlier studies well, but applying them unchanged to newer, population-based genetic research could cause significant problems. Informed consent is the process of communicating with potential participants about the risks, benefits and alternatives associated with a research project so they can decid...Respiratory activation in patients with obstructive sleep apnea syndrome (OSA)
...re that arterial CO2 pressure remained constant or unchanged throughout the hypoxia period by measuring end-tidal CO2 (PETCO2), and five percent CO2 was supplemented as needed. Hypoxia was abruptly terminated with one breath of 100 percent O2. The breathing pattern was monitored at 5, 20, and 40 minutes of the...Gene duplication adapts to changing environment
...ed that the original gene encoding RNASE1 remained unchanged after duplication, but its twin, which encodes RNASE1B, changed rapidly. Furthermore, the changes were not random; most caused the enzyme to become more negatively charged, which could affect its interaction with the RNA it degrades. Next, Zhang's ...Human running on surfaces of different stiffnesses
...y case, the support mechanics remained essentially unchanged over the four stiffest surfaces tested. The experiment findings supported the authors' hypothesis that the metabolic cost of running at an intermediate speed is progressively reduced and that the leg's spring stiffness is increased as ksurf changes ...Antioxidant vitamins may help transplant patients
...he group that received a placebo, but were largely unchanged in those who received the antioxidants. The use of antioxidants did not appear to interfere with the immunosuppressive drugs the patients needed to take, or cause any increase in transplant rejection. Some past studies looking at this and other ...Rockefeller researchers provide the first functional evidence for mammalian pheromone receptors
...cond, male aggression against other males was also unchanged in the mutants. A third test focused on male-male sexual behavior. Socially inexperienced mice are often observed to exhibit sexual behaviors toward other males until they become more experienced and learn to distinguish males from females. Socially......, the basal metabolic rate in allsubjects remained unchanged and allowed appropriately timed pubertaldevelopment. Reversal of severely impaired lymphocyte function suggests thatleptin is a key molecule in both CD4+ T cell development and function andraises the possibility of leptin-replacement therapy for othe...