In vitro enhancement of human platelet aggregation by somatostatin.

Very low concentrations of somatostatin (S-14) strongly potentiate the in vitro aggregation induced by collagen, ristocetin and arachidonic acid, but not that induced by ADP or epinephrine, in both human platelet rich plasmas and gel-filtered platelet preparations. Desensitization phenomena may be induced either by repeated addition of S-14 or long lasting contact between S-14 and platelets.

Secondary sclerosing cholangitis: an experimental study.

An experimental study on rabbit sclerosing cholangitis (SC) secondary to direct injection into the biliary tract of the chemical substances commonly employed for intraoperative sterilization of the hydatid cyst content is reported. Among the various substances utilized, 10% formalin and 30% hypertonic solution caused gross and microscopic lesions compatible with less advanced forms of sclerosing cholangitis. The authors present their hypothesis on the development of SC in operated hydatid cysts of the liver.