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...development from the last trimester in utero up through ages 1 to 2. Infants' brains expand quickly, then ruthlessly prune back brain cells - a process of orderly cell death, known as apoptosis. In an experiment in young rats undergoing this crucial stage of neural development, Christopher Turner, an assistant professor of neurobiology and anatomy at Wake Forest University School of Medicine, witnessed out-of-control apoptosis in the brains of rats treated with drugs that mimicked the action of the general anesthetic ketamine. Starved of calcium, whole portions of the rats' brains died off - enough to cause significant cognitive impairment...
...Some researchers, including Lisa Wise-Faberowski, an assistant professor of anesthesiology and pediatric cardiology at the University of Colorado, Denver, think the effect in humans won't be easy to show. At the ASA conference, Wise-Faberowski devoted her presentation to chiding researchers for worrying prematurely about "anesthesia-induced neurotoxicity," pointing out that it has been seen only in "cell cultures and lab animals." If anesthetics have always been neurotoxic, one slide in her presentation asked, "Why is it only an issue now?" She and others point out that non-human testing of anesthetic safety has an unreliable history...
Rodolfo F. Pastor, a visiting professor of history at Harvard, understands how the identity and culture of Honduras—a nation obsessed with soccer—has evolved alongside the country’s political and economic misfortunes. Until recently, Pastor served as the Honduran Minister of Culture under President Jose Manuel Zelaya. Pastor was forced to flee the country this past summer when a military coup ousted Zelaya’s administration...
...Harvard Center for the Environment Director Daniel P. Schrag and Environmental Epidemiology Professor Joel Schwartz challenged Lehner to explain the repercussions of these strategies...
Most of us eat chocolate. Now--at least according to School for Engineering and Applied Sciences Professor David Edwards--we should inhale...