Showing papers by "Qinghua Hu published in 1994"
Journal Article•
TL;DR: The results showed that multiparity, age younger than 20 or older than 36, long second and third stages of labour, abortion, low income, lack of obstetric care, etc, were identified as risk factors statistically.
Abstract: The 1:2 matched case-control retrospective study of postpartum hemorrhage (PPH) was undertaken in Suizhou, Hubei Province from 1 January 1990 to 31 December 1991. The subjects consisted of 109 women who had a PPH (blood loss equal to or more than 500 ml) and 218 women whose blood loss at delivery was less than 200 ml. The results showed that multiparity, age younger than 20 or older than 36, long second and third stages of labour, abortion, low income, lack of obstetric care, etc, were identified as risk factors statistically.
3 citations
TL;DR: The results suggest that ATP stimulates both calcium release from intracellular calcium pool(s) and calcium influx across the plasma membrane from extracellular space.
Abstract: Effects of ATP on cytosolic free calcium ([Ca2+]i) in single porcine pulmonary artery endothelial cell were studied. Using a dual-wavelength excitation microflurometry. it was found that ATP evoked a rapid transient in [Ca2+]i which was then followed by a maintained elevation of [Ca2+]i. The removal of extracellular Ca2+ abolished the maintained plateform, but exerted no obvious effect on the initial-transient. These results suggest that ATP stimulates both calcium release from intracellular calcium pool(s) and calcium influx across the plasma membrane from extracellular space.