Iron release from both human and horse spleen haemosiderin to desferrioxamine was substantially less than that released from ferritin samples. This finding contradicts a previous report [Kontoghiorges, Chambers & Hoffbrand (1987) Biochem. J. 241, 87-92]. Differences in phosphate content of cores and in core size between haemosiderin and ferritin did not account for the different iron-release ra...

OBJECTIVES The present study was undertaken to determine the effects of free ionized calcium influenced by either the anticoagulant used (citrate vs. heparin) or directly varying the calcium levels after treatment of blood with citrate on the antiplatelet efficacy of two classes of GPIIb/IIIa antagonists. METHODS The platelet effects of changes in plasma [Ca(++)] with the different GPIIb/IIIa...

Lead, copper, cobalt, nickel, iron and zinc ions form monocitrate complexes (negative charge) in citrate solution which is absorbed on the citrate form of anion-exchange resins (citrate as counter ion) y exchange of citrate ion with citrate complexes. These are subsequently recovered from the resin by 0.5M ammonium citrate eluent at pH 2.0. Under optimized conditions, quantitative recovery ...

We describe a case of severe erythrocytosis caused by testosterone replacement therapy in a 66-year-old man affected with hypogonadotropic hypogonadism (HH) determining osteoporosis, resolved by switching to restoration therapy with clomiphene citrate. The patient complained fatigue, loss of libido and defective erections and a spontaneous vertebral fracture despite bisphosphonate therapy and v...

Acetyl-CoA carboxylase is thought to be absent in the heart since the latter is highly catabolic and nonlipogenic. It has been suggested that the high level of malonyl-CoA that is found in the heart is derived from mitochondrial propionyl-CoA carboxylase, which also uses acetyl-CoA. In the present study, acetyl-CoA carboxylase was identified and purified from homogenates of rat heart. The isola...

Factor VIII (antihemophilic factor) has been purified approximately 500.fold from the cryoprecipitate fraction of human plasma. The isolation procedure involves adsorption of contaminants with Al(OH),, column chromatography on tricalcium citrate-cellulose, precipitation with concanavalin A, and an agarose gel filtration step. The linal product is homogeneous when examined by zone electrophoresi...

background: clomiphene citrate (cc) an agonist and antagonist of estrogen, is the first line treatment in ovarian stimulation. anti-estrogenic effect of cc in endometrial thickness and cervical mucus has negative effect on pregnancy rate. letrozole is an aromatase inhibitor has been seen that has acceptable pregnancy rate compared to cc. objective: the aim of this study was to compare the effic...

this study was designed to compare the effect of clomiphene and letrozole in ovulatory stimulation in infertile women under intrauterine insemination who referred to mahdiyeh infertility clinic during 2008-2009. 106 infertile women were randomly divided into two equal groups. patients were treated with 5 mg of letrozole daily (in letrozole group) or 100 mg of clomiphene citrate daily (in clomip...

In this work, we report synthesis of surface modified superparamagnetic iron oxide nanoparticles (SPION) by co-precipitation method using FeSO4.7H2O and Fe2(SO4)3.5H2O as precursors and trisodium citrate dihydrate as surfactant. Surface modification of the as prepared samples was performed in pot by sol-gel precipitation method u...

In this work, two types of solvents ethanol or water were used in preparation of the LaFeO3 catalysts by citrate sol gel method. The obtained samples were subjected to various calcination temperatures in order to study the catalytic activity and stability for methanol electro-oxidation by XRD, cyclic voltammetry and chronoamperometry. The crystallinity of the LaFeO3 ph...