In adult rats, when plasma osmolality increases, water flows across the blood-brain barrier down its concentration gradient from brain to plasma, and brain volume deceases. The brain responds to this stress by gaining osmotically active solutes, which limit water loss. This phenomenon is termed brain volume (water) regulation. We tested the hypothesis that brain volume regulation is more effect...

OBJECTIVES Premature rupture of the membranes (PROM) in pregnancy refers to rupture of membranes of the amniotic sac and chorion. The aim of the study was to review the literature and analyze the course of pregnancy (primipara) complicated by the premature rupture of the membranes, and consequent loss of amniotic fluid after 19 weeks of gestation. STUDY DESIGN A 27-year old primiparous patien...

OBJECTIVE to determine the risk factors for premature birth. METHODS retrospective case-control study of 600 pregnant women assisted in a hospital, with 298 pregnant women in the case group (who gave birth prematurely <37 weeks) and 302 pregnant women who gave birth to a full-term newborn in the control group. Stata software version 12.2 was used. The Chi-square test was used in bivariate ana...