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Science News Archive 1998 - Page 20


Page 20 of 42

To Retire Well, Invest In Making Friends

A University of Michigan study suggests that post-retirement changes in life satisfaction are common and influenced by the size of a person's social support network. Recently retired individuals with larger networks tend to be more satisfied, while those with smaller networks may experience decreased life satisfaction.

New Study: Politics Of Congress, President Affect Supreme Court

A new Ohio University study reveals that the political makeup of Congress and the party affiliation of the president play a significant role in shaping Supreme Court justices' rulings in criminal cases. The research found that liberal decisions by the court mirrored Democrats' influence, while conservative decisions were more prevalent...

SourceOhio University·JournalJournal of Economic Behavior & Organization·DateJul 27, 1998

Australian Scientists In World-First Cell Discovery

A team of Australian scientists has made a world-first discovery by describing the structure of a vital receptor found on the surface of body cells in all animals, including humans. This breakthrough has major implications for understanding growth and development, as well as diseases such as diabetes and cancer.

SourceCSIRO Australia·JournalNature·DateJul 24, 1998

Erectile Dysfunction Associated With Depression

Researchers found that depression is associated with erectile dysfunction (ED) in men, with moderate to complete ED occurring almost twice as often in those with depressive symptoms. The study used data from the Massachusetts Male Aging Study and found a significant link between ED and depressive symptomatology.

SourceCenter for Advancing Health·JournalPsychosomatic Medicine·DateJul 23, 1998

UF Discovery Of Chicken Gene Mutation Aids Study Of Rare Inherited Eye Disease

A University of Florida neuroscientist has discovered a mutant gene in chickens that helps researchers better understand a rare human eye disease called Leber's congenital amaurosis type I. The chicken model is being used to develop a form of gene therapy for treating the disease, which affects 100,000 to 200,000 people worldwide.

SourceUniversity of Florida·JournalProceedings of the National Academy of Sciences·DateJul 23, 1998

Black Teen-Agers With Severe Asthma Are Three Times More Likely Than White Teens To Be Steroid Resistant

A recent study found that black teen-agers with severe asthma are three times more likely to be steroid-resistant compared to their white counterparts. The study also revealed that children with steroid-resistant asthma are more likely to be African-American and require larger amounts of oral steroids.

SourceNational Jewish Health·JournalJournal of Allergy and Clinical Immunology·DateJul 23, 1998

HMOs In California Shine In A New U-M Study

A new University of Michigan study suggests that Health Maintenance Organizations (HMOs) in California are doing a better job of selecting high-quality hospitals for their patients. In the study, researchers found that HMO enrollees were more likely to receive care from above-average hospitals compared to those with other insurance plans.

SourceUniversity of Michigan·JournalHealth Services Research·DateJul 23, 1998

Cultured Neural Stem Cells Reduce Symptoms In Model Of Parkinson’s Disease

Researchers have developed a method to multiply and mature neural stem cells in the lab, which can form dopamine-producing neurons and reduce symptoms in an animal model of Parkinson's disease. The study opens up new opportunities for studying brain development and may lead to the creation of easily controlled stem cell therapies.

Sex Hormones Found To Have Little Or No Effect

Researchers at Penn State found that sex hormones have little effect on adolescent sexual behavior after a nearly two-year study. Social factors like peer pressure are believed to have a much larger impact on behavior.

SourcePenn State·JournalThe Journal of Clinical Endocrinology & Metabolism·DateJul 20, 1998

Pool Of Latently Infected, "Resting" Cells Established Early In HIV Infection

Researchers found that HIV establishes a pool of latently infected immune system cells even with early treatment. These cells can persist for years, posing an obstacle to ultimate control and eradication of the virus. The study suggests that these reservoirs are established very early in infection.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalProceedings of the National Academy of Sciences·DateJul 20, 1998

New Knowledge From Old Dung

Researchers successfully isolated intact DNA from giant sloth droppings, providing insight into its diet and habits. The discovery uses a novel molecular-palaeontologic method to analyze the chemical reaction that protects DNA in dried dung.

SourceMax-Planck-Gesellschaft·JournalScience·DateJul 17, 1998

Syphilis Genome Sequence Offers Clues To Better Diagnosis, Prevention And Treatment

Scientists have sequenced the complete genome of Treponema pallidum, the syphilis bacterium, providing critical information for developing diagnostic tests, treatments, and vaccines. The genetic blueprint reveals targets for new antibiotics and surface proteins that could stimulate an immune response in experimental vaccines.