By Federico Quilodran MARIA ELENA, Chile -- A major earthquake crushed cars, damaged thousands of houses, blocked roads and terrified people for hundreds of miles around Wednesday. Chilean authorities reported at least two deaths and more than 100 injuries.

By Gonzalez-Navarrete, Flor Eisner, Veronica; Morales, Priscilla; Castro, Olga; Et al Abstract Background. The role of tumor necrosis factor-alpha (TNF- alpha) in granulosa luteal cell function and steroidogenesis is still controversial.

By Araya, Magdalena; Olivares, Manuel; Pizarro, Fernando; Mndez, Marco A; Et al ABSTRACT The health consequences of mild copper excess in humans are unknown. In a previous study, 2 mo of supplementation with up to 6 mg Cu/L in drinking water did not induce detectable changes.