July 26 and August 2, 2004
In Print Photo by Jeff Cleary From Focus: Secrets of Brain Aging Revealed Researchers led by Bruce Yankner (on right) and Tao Lu have identified a group of genes whose activity decreases with age in the human brain. The decline, starting as early as 40, results from damage to the brain's DNA and progresses at widely varying rates in different individuals. Among the genes most affected are those involved in learning and memory.   Publications Online BBS Bulletin Focus HMI World HSTconnector MD-PhD Newsletter MedEd News Mentations On The Brain   Related Links InteliHealth Harvard Health Publications		Headlines Study Yields Insights into Precancerous Condition [Select "In Research"] Increased Dosage of Thyroid Medication Necessary Early in Pregnancy Efficacy of Statin Therapy Tied to Patients' Genes Study Suggests Value of Regular PSA Tests for Tracking Prostate Cancer Study Suggests Broader Chemotherapy Attack in Breast Cancer Growth Hormone Control May Be Important HIV Lipodystrophy Treatment Study Finds "Ratings Creep": Movie Ratings Categories Contain More Violence, Sex, Profanity than Decade Ago Caulking Found to be Unrecognized Source of PCB Contamination in Schools and Other Buildings Survey Finds Most Air Travelers Want to Be Contacted After Possible Exposure to a Serious Contagious Disease		Spotlight Presented Online, Method Brings Socioeconomic Data into Monitoring Health Disparities HSPH researchers have developed a systematic way to bring socioeconomic data into monitoring health disparities. The method, based on geocoding U.S. Census tract poverty levels, proved valid across a wide range of health outcomes. The Public Health Disparities Geocoding Project Monograph is available free online. Student Scene Photo by Graham Ramsay Can Lid Be Lifted on Clinical Trials? Erica Seiguer explores leading arguments for transparency in clinical trials and broad dissemination of results, particularly those that are negative. Lab Works A multimedia site featuring Harvard Medical research

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