... no exogenous precipitating causes could be identified were during the 7 days before the onset of menstruation. 2. Haem biosynthesis has been monitored throughout a complete menstrual cycle in six normal females and compared with that in male control subjects. In the females, there was marked fluctuation...

...-aminolaevulinate dehydratase δ-aminolaevulinate synthase haem biosynthesis lead protoporphyrin Clinical Science (1979) 56,61-69 Erythrocyte 6-aminolaevulinic acid dehydratase activity and blood protoporphyrin concentrations as indices of lead exposure and altered haem biosynthesis P. A . M E R E D I T H , M...

...M. J. Brodie; M. R. Moore; G. G. Thompson; A. Goldberg 1. The activities of the enzymes of haem biosynthesis were studied in 23 patients with acute intermittent porphyria. The mitochondrial enzymes δ-aminolaevulinate synthase, coproporphyrinogen oxidase and ferrochelatase were measured...

...B. C. Campbell; M. J. Brodie; G. G. Thompson; P. A. Meredith; M. R. Moore; A. Goldberg 1. The activities of six of the enzymes of haem biosynthesis have been assayed in peripheral blood from patients with lead poisoning, acute intermittent porphyria or hereditary coproporphyria. 2. Compared...