background vegf gene has been reported to be related with many diseases and recurrent pregnancy loss in various studies. vegf polymorphisms are risk factors for pregnancy losses, and generally studies report only women’s genetic analyses. to evaluate the association between vegf a c405g, c460t, c936t and c2578a polymorphisms and spontaneous abortion, we studied the genotypes of spontaneously ab...

Jason Treberg discusses the impact of Paul Yancey et al.'s classic paper 'Living with water stress: evolution of osmolyte systems', published in Science in 1982. Occasionally a hypothesis comes along that is so broadly applicable to biological systems that it borders on being universal. Even less frequent is when the hypothesis involves linking knowledge from almost a century before with recent...

stressful life events may play an important role in coronary heart disease and sudden cardiac death. this study was performed to compare the frequency of stressful events and mental strain in patients with acute myocardial infarction (mi) and normal population. a case-control study was performed on 50 survivors of mi and 50 controls with no evidence of cardiovascular disease, matched by age, ge...

This study investigated possible differences using the same stretch-shortening exercise (SSE) protocol on generally accepted monitoring markers (dependent variables: changes in creatine kinase, muscle soreness, and voluntary and electrically evoked torque) in males across three lifespan stages (childhood versus adulthood versus old age). The protocol consisted of 100 intermittent (30 s interval...

Cooperative resource sharing is widespread across cultures, and it was likely critical during much of human evolutionary history for pooling risk. Need-based specifically pools risk by following two cooperative rules: help others when asked, only request in need. In a two-part study, we first expanded an agent-based model need-based partnerships, adding types defection varying partnership sizes...