introduction: the main inhibitors of coagulation pathway are antithrombin (at), protein c and protein s. these inhibitors are necessary to prevent thromboembolism. hereditary deficiency of inhibitors is the main cause of alteration in balance between the anti-clotting and the formation of thrombin. patients with this abnormality are susceptible to venous thromboembolism (vte). two major clinica...

Protein S deficiency is an autosomal dominant disorder that results from mutations in the protein S gene (PROS1). Inherited deficiency of protein S constitutes a risk factor for venous thromboembolism. Protein S functions as a nonenzymatic cofactor for activated protein C in the proteolytic degradation of coagulation factors Va and VIIIa. The frequency of protein S deficiency seems to differ be...

background: intrauterine growth retardation (iugr) contributes significantly to fetal morbidity and mortality, but its etiology is unknown in most cases. objective: the aim of this study was to examine the association between inherited thrombophilia and iugr. materials and methods: a case-control study was performed in a tertiary referral center (afzalipour hospital) over 2-years period (2010-2...