Liver Transplantation from Female Donors Provokes Higher Complement Component C5a Activity

Pediatric liver transplantation from neonatal donors.

Sixteen recipients of neonatal liver grafts were compared with 114 contemporaneous pediatric recipients of grafts from older donors. Graft and patient survival were worse in the neonatal group although the differences were not statistically significant. Patients with neonatal livers who had no technical complications required a longer time postoperatively to correct jaundice and a prolonged pro...

Successful liver transplantation from crossmatch-positive donors.

Donors for liver transplantation.

There is good evidence that the decade of the 1980s will witness an expansion of efforts to transplant extrarenal organs. This will have a profound effect in pediatrics, and particularly in the field of hepatology. The number of infants born with biliary atresia is not known with certainty, but it is likely that there are approximately 500 new cases each year in the United States. The number of...

CYP4F18-Deficient Neutrophils Exhibit Increased Chemotaxis to Complement Component C5a

CYP4Fs were first identified as enzymes that catalyze hydroxylation of leukotriene B4 (LTB4). CYP4F18 has an unusual expression in neutrophils and was predicted to play a role in regulating LTB4-dependent inflammation. We compared chemotaxis of wild-type and Cyp4f18 knockout neutrophils using an in vitro assay. There was no significant difference in the chemotactic response to LTB4, but the res...

Complement component C5a mediates hemorrhage-induced intestinal damage.

BACKGROUND Complement has been implicated in the pathogenesis of intestinal damage and inflammation in multiple animal models. Although the exact mechanism is unknown, inhibition of complement prevents hemodynamic alterations in hemorrhage. MATERIALS AND METHODS C57Bl/6, complement 5 deficient (C5-/-) and sufficient (C5+/+) mice were subjected to 25% blood loss. In some cases, C57Bl/6 mice we...