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DNA'S Extended Domain Subject to the push of scrutiny, all scientific suppositions sit at truth's precarious edge. And now DNA's presumed place in the cell is beginning to sway. Although [...]

Images of Pain In this nightmarish scenario, a 7-year-old boy captures the brutality of his recurrent headaches. Although verbal imagery can paint poignant pictures of pain, visual renditions can be [...]

Vaccination success convicts seal killer In the first scientific test in seals of two vaccines for canine distemper virus (CDV), Dutch scientists have successfully inoculated six of the animals. The [...]

Sunshine fuels a bacterial relationship Scientists have identified a bacterium that lives with and 'fixes' nitrogen for certain plants, but uses the sun's energy instead of the plant's to survive. [...]

Tomato tumors: Red light means grow Two scientists have discovered that visible red light induces tiny tumors on the leaves of tomato and certain other plants growing in an environment [...]

Eyeing the ingrained origins of DNA Using extremely sensitive microscopy, two scientists have identified the specific cellular sites at which DNA replicates itself. The work might someday help researchers develop [...]

Probing the nucleus of focal epilepsy Scientists have detected chromosomal rearrangements inside certain brain cells of epileptic patients, a finding that could help explain why these cells can initiate recurrent [...]

Endurance superstars may be 'born to run' A study of muscle chemistry in world-class long-distance runners suggests these athletes' ability to 'reach levels of physical endurance unattainable by all but [...]

Plants Poised at Extinction's Edge Botanists polled in a new survey predict that 680 native U.S. plants may become extinct before the year 2000, representing 'clearly the most catastrophic loss [...]

Laskers highlight addiction, RNA work A physician, a molecular biologist and a biochemist received the 43rd annual Albert Lasker Medical Research Awards, announced this week by the Albert and Mary [...]

Firming the figures on mental illness Almost one-third of U.S. adults are likely to suffer from a mental illness or substance abuse or dependence sometime in their lives, according to [...]

Scientist solves secret of bee bread A microbiologist has discovered the microbial ingredients honeybees embed in the nutrient-packed pollen derivative known as bee bread. Martha A. Gilliam of the U.S. [...]

Muscles in space forfeit more than fibers Scientists and ex-football players know that muscles atrophy from disuse. But in space, where there is little gravity and muscles carry almost no [...]

Two Americans, Briton share medical Nobel Gertrude B. Elion was getting dressed at 6:30 a.m. Oct. 17 when a journalist called, congratulating the new Nobel laureate. 'I said, 'You're kidding; [...]

Taking aim at high cholesterol in kids Studies have shown that heart disease can begin very early in life (SN: 10/8/88, p.234), but medical experts are only beginning to establish [...]

New genes for complete-protein beans Legumes and grains provide plenty of protein for a healthy meal, but neither alone provides a complete set of the amino acids humans (and all [...]

Pesticidal plants face legal hurdle As scientists prepare genetically altered plants for commercial sales, federal policymakers are planning a difficult regulatory obstacle for plants genetically engineered to kill viral or [...]

Belief in boron: An element of strength Students should no longer be taught that boron is essential only for plants, says Forrest H. Nielsen of the Department of Agriculture's Grand [...]

Fetal AIDS mimicked in brain-cell culture Scientists have created the first successful tissue-culture model of the nervous system damage incurred by fetuses from mothers infected with the AIDS virus, or [...]

Revealing the finicky functions of fish oil Fats in fish oil exert varied and often conflicting effects on heart-disease risk factors ranging from clotting to cholesterol. At this week's meeting [...]

Mutation revealed for adult Tay-Sachs Scientists have discovered the genetic mutation responsible for the adult form of Tay-Sachs disease, a rare, degenerative brain disorder most commonly seen in its childhood [...]

Weakness for alcohol borne by muscles A new study of a homogeneous population of alcoholics with no signs of sickness reveals that long-term, heavy alcohol consumption damages the heart in [...]

Genetic evidence for autism A surprisingly large percentage of parents and siblings of austistic individuals display language and personality features reminiscent of autism, suggesting a genetic component for this early-onset [...]

Drug shows promise in sickle cell anemia Early clinical studies suggest that a drug normally used to treat leukemia may be effective in treating sickle cell anemia, a genetic disorder [...]

Reports on the results of a research on the skeletal stability of hibernating bears. Calcium measurements of the animals during the entire life cycle; Comparison of the winter and summer biopsies to measure bone formation; Details on how researchers work with the bears in the research facility. INSET: Working with bears: Very, very carefully.

Focuses on the effectiveness of using water-soluble forms of vitamin A in treating vitamin A deficiency in rats in Ames, Iowa. Use of the vitamin A compounds in controlling wrinkling and acne in humans; Effectiveness of using tretinoin as an anti-wrinkle cream; Accounts on the toxicity of vitamin A if given in large doses.