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Science News for October 1, 1999


New drugs target HIV's deep pocket

Researchers have developed a new family of chemicals that bind specifically to the gp41 pocket, halting HIV's ability to infect cells. The compounds, created using mirror-image phage display, show promise as potential oral treatments for HIV, with advantages including reduced cell membrane penetration and lower likelihood of resistance.

Alcohol researchers confirm molecular culprit of alcohol-induced liver damage

A study found that tumor necrosis factor-alpha (TNF-alpha) plays a crucial role in early liver damage caused by alcohol consumption. The researchers used gene knockout technology to show that TNF-alpha mediates the development of liver injury, leading to potential new drug therapies for conditions affecting millions of Americans.

Some Neanderthals practiced cannibalism, shows find from French cave, as reported in the 1 October issue ofScience

The discovery of 78 Neanderthal bones at Moula-Guercy suggests that European Neanderthals practiced cannibalism, systematically defleshing and breaking apart the bones to remove marrow and brains. The abundance of natural resources available at the site makes survival-based cannibalism unlikely.

Researchers solve vision mystery

A study of infants with dense cataracts found that visual stimulation, not brain development, is responsible for the five-fold visual improvement within six months of birth. Babies' vision improved rapidly after cataract removal and contact lens fitting, with some developing 20/20 vision.

SourceThe Hospital for Sick Children·JournalScience·DateOct 1, 1999