When the jelly-less eggs removed from the most cephalic region of the oviduct (pars recta) of the toad Bufo arenarum were inseminated at a high sperm concentration, high frequencies of fertilization were obtained. On the other hand, control eggs removed from the pleuroperitoneal cavity (coelomic
The regulatory mechanism of the pulpal microcirculatory hemodynamics was investigated by measuring pulpal blood flow (PBF) in dogs by means of a laser doppler flowmeter. Application of vasodilators (acetylcholine, isoproterenol, histamine, bradykinin and substance P) to the prepared cavity caused an
The relationship between the kaolin-induced writhing reaction and production of arachidonate metabolites (PGs) in mice was studied. PGs were released into the peritoneal cavity after intraperitoneal injection (i.p.) of kaolin (2.5 mg/mouse) with a peak at 5 min. About 80% of the total amount was
The leukocyte migration induced by Phoneutria nigriventer spider venom (PNV) has been investigated in rats using the pleurisy model. Intrapleural injection of PNV (10-100 microg/cavity) caused a dose- and time-dependent leukocyte accumulation. The bradykinin B(2) receptor antagonist Hoe 140 (0.5
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