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Science News for November 20, 1997


Purdue Researchers Track Oil Spill's Effects On Sea Otters

Researchers are studying the effects of the 1989 Exxon Valdez oil spill on Alaskan sea otter populations. Initial results indicate higher levels of an enzyme in otters living near the spill area, suggesting continued exposure to low levels of oil or other contaminants.

SourcePurdue University·DateNov 20, 1997

MGH Team Identifies New Immune Activity That May Control HIV Levels

Researchers at MGH have discovered a new immune response that may help control HIV levels in the body. In a study of chronically infected individuals and long-term nonprogressors, the team found that those with strong HIV-specific helper T-cell responses had lower viral loads, suggesting a potential therapeutic target.

SourceMassachusetts General Hospital·JournalScience·DateNov 20, 1997
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Older Moms Have Favorite Children And Admit It

A study found that 80% of older mothers admit to having a favorite child, while 71% of their grown children correctly identify their mom's favorite. The researchers also discovered that how parents feel about their children depends on factors like social status and personal history.

SourceCornell University·DateNov 20, 1997

Specifically Targeting HIV-Infected Cells: A New Gene-Therapy Approach

Researchers have developed a novel gene-therapy strategy to target HIV-infected cells using the virus's molecular tools against it. The technique, which employs therapeutic genes only in infected cells, has broad applicability and could potentially cure HIV infection.

SourceUniversity of Pennsylvania School of Medicine·JournalScience·DateNov 20, 1997