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The possible regulatory role of tetrahydrobiopterin (BH 4 ) in Type III nitric oxide synthase (NOS III) activity of human placentae from first trimester, term and pre-eclamptic pregnancies was investigated. In homogenates of first-trimester or term placentae, BH 4 stimulated NOS III activity up to 2.5-fold in a concentration dependent manner from 20n m to 1μm BH 4 , and half-maximal...
Introduction: The phenotypic analysis of human umbilical cord blood (CB) mononuclear cells is important to study their maturity and differentiation regarding their transplantable capacity.Materials and Methods: In this work we have studied the differential expression of B cell antigens on CD5-/HLA-DR+ B cells (B1b, B2) and CD5+/HLA-DR+ cells (B1a) from the CB (n = 6) and adult peripheral blood (PB)...
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