BACKGROUND Recurrent spontaneous abortion (RSA) is one of the most common health complications with a strong genetic component. Several genetic disorders were identified as etiological factors of hereditary X linked RSA. However, more genetic factors remain to be identified. OBJECTIVE In this study we performed linkage analysis on a large X linked RSA pedigree to find a novel susceptibility l...

BACKGROUND Recurrent spontaneous abortion (RSA) is defined as three or more sequential abortions before the twentieth week of gestation. There are evidences to support an allo-immunologic mechanism for RSA. One of the methods for treatment of RSA is leukocyte therapy; however there is still controversy about effectiveness of this method. OBJECTIVES To evaluate the effectiveness of leukocyte t...

Human parvovirus B19 is a small DNA virus that is transmitted mainly through contact with respiratory secretion or aerosols, but it may be transmitted to the fetus transplacentally from infected mother leading to many complications mainly fetal hydrops, intrauterine fetal death or spontaneous abortion. In this study we aimed at assessment of the relation between maternal human parvovirus B19 in...

BACKGROUND Approximately 205 million pregnancies occur each year in the worldwide. On the other hand, Spontaneous abortion has been reported in 15-20% of all diagnosed pregnancies. The most common cause of spontaneous abortion is chromosomal abnormalities of the embryo. Robertsonian translocation carriers specially 21-14 are the most common balanced rearrangement among the carrier couples with ...

Randomized trials of lymphocytes immunotherapy (LIT) in the treatment for recurrent spontaneous abortion (RSA) have shown conflicting results. Current evidences to evaluate the effectiveness of LIT for RSA patients who lack of blocking antibody (BA) are systematic reviewed as a purpose. Literatures concern RSA patients with negative BA and who receiving LIT were searched and screened. Pregnancy...

One of the major causes of spontaneous abortion before the fourth month of pregnancy is chromosomal abnormalities. We report an unusual case of a familial balanced chromosomal translocation in a consanguineous couple who experienced 4 spontaneous abortions. Chromosomal studies were performed on the basis of G-banding technique at high resolution and revealed 46, XX, t (16; 6) (p12; q26) and 46,...

Introduction Adenosine and deoxyadenosine metabolism is influenced by adenosine deaminase (ADA) enzyme. ADA increases in different diseases and is considered as one of the markers for cell-mediated immunity. Pregnancy is associated with depressed cell-mediated immunity. The level of ADA expression, which seems to play a key role in maintaining pregnancy, is influenced by adenosine deaminase G22...