![]() There's a definite adaptive advantage to being able to back off." "We don't want to secrete more adrenaline than necessary. "Whether our stress responses are controlled by genes or lifestyle, we'd like to have more control," McCobb says. Improved understanding of chemical signaling cascades in the endocrine system could lead to better medical therapies - perhaps even gene therapy - for conditions such as hypertension and heart attack, predict McCobb, an assistant professor of neurobiology and behavior, and Xie, a postdoctoral researcher in the McCobb's department. Stressful experience is remembered, and biases us toward responding forcefully to subsequent threats," McCobb says. ![]() "Our study points to the effect of lifestyle. McCobb, co-author along with Jiuyong Xie of a report in the April 17 issue of the journal Science. "The hormonal response to stress is different for every individual, and seems to be controlled by some combination of inheritance and lifestyle," explains David P. The key to this so-called molecular memory resides in a donut-shaped protein on the surface of cells that secrete adrenaline, the hormone also known as epinephrine. Now Cornell University neurobiologists, studying the adrenal glands of rats, have discovered how chronic stress cranks up the intensity of this adrenaline response. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |