Heme a is a redox cofactor unique to cytochrome c oxidases and vital to aerobic respiration. Heme a differs from the more common heme b by two chemical modifications, the C-8 formyl group and the C-2 hydroxyethylfarnesyl group. The effects of these porphyrin substituents on ferric and ferrous heme binding and electrochemistry were evaluated in a designed heme protein maquette. The maquette scaf...

BACKGROUND Although ferric pyrophosphate is a promising compound for iron fortification of foods, few data are available on the effect of food matrices, processing, and ascorbic acid on its bioavailability. OBJECTIVE We compared the relative bioavailability (RBV) of ferrous sulfate in an experimental form of micronized dispersible ferric pyrophosphate (MDFP) in a wheat-milk infant cereal give...

Introduction: Increased iron requirements to supply the expanding blood volume of the mother and the rapidly growing fetus and placenta can cause iron deficiency anemia.Plenty of oral iron formulations are available.A comparative study was planned to find out the best oral iron supplement for improving iron deficiency anemia in pregnant females as well as to compare their tolerability, as this ...

Received for publication December 22, 2004. Research was initiated to study the interaction between soil amendments (lime, gypsum, and ferrous sulfate) and dissolved molybdate reactive phosphorus [RP(<0.45)] losses from manure applications from concentrated runoff flow through a sod surface. Four run-over boxes (2.2-m2 surface area) were prepared for each treatment with a bermudagrass [Cynodon ...