Increased genetic selection over the past 40 years has resulted in a dairy cow with an improved biological efficiency for producing milk but with an associated reduced fertility. Embryo loss is the greatest factor contributing to the failure of a cow to conceive. The extent and timing of embryo loss indicates that 70% to 80% of this loss occurs in the first 2 weeks after artificial insemination...

a:4:{s:10:"Background";s:364:"Antiphospholipid syndrome is a coagulation disorder that causes recurrent miscarriages and fetal deaths. In the present review we summarize current knowledge about Antiphospholipid syndrome that associated with recurrent miscarriages. In addition, on the basis of these comprehensive data, possible pathophysiologic mechanisms of this disorder are discussed.";s:19:"M...

Recurrent pregnancy loss (RPL) refers to the consecutive loss of three or more clinically recognized pregnancies prior to the 20th week of gestation (excluding ectopic, molar and biochemical pregnancies). RPL is classified into two categories: primary RPL, which consists of repeated miscarriages in which a pregnancy has never been carried to viability; and secondary RPL, in which a live birth h...

Background Accurate prevalence figures are not available, but it has been estimated that 1-2% of women have recurrent pregnancy loss (RPL), defined as three or more consecutive losses of intrauterine pregnancy in the first trimester. Half of whom have no identifiable cause. Recent studies of early pregnancy loss, preeclampsia, pregnancy complications such a hydatidiform mole suggests that these...