November 29, 1999

Genes Found that Unravel Methylation Mystery Two genes, discovered by En Li (front, left) and colleagues, encode enzymes that attach methyl groups to DNA. Methylation has a powerful influence on gene regulation in the growing embryo, silencing the expression of some genes. The discovery may have implications for certain birth defects and cancer.

Researchers Find That Small To Moderate Amounts of Alcohol May Reduce Men's Risk of Stroke Study Finds Peers and Pop Culture Influence Girls' Unhealthy Weight Control Behaviors Combination of Abciximab and Low-Dose Clot-Buster Improves Blood Flow To Both Blocked Arteries and Smaller Vessels in Heart-Attack Patients—Enhanced Effects Also Observed in Difficult-to-Treat Heart-Attack Patients Natural Levels Of Sleep-Hormone Melatonin Found Not To Decline With Age

Photo Exhibit: Courage and Resiliency—Cambodian Women in America Marcus Halevi November 11–December 30

Fourth-Year Students Complete First Comprehensive Clinical Exam The fourth-year class has just completed its first standardized comprehensive clinical exam, which was based on the objective structured clinical exam (OSCE) format. The initial review was a big production, involving 129 faculty examiners and eight days of student testing.