Postpartum unintended pregnancy and contraception practice among rural-to-urban migrant women in Shanghai.

BACKGROUND: Rural-to-urban migrant women in Shanghai have poor reproductive health; the incidence of postpartum unintended pregnancy and contraceptive practices has not been adequately studied in this population. STUDY DESIGN: This retrospective study examined the incidence of postpartum unintended pregnancy and associated factors among migrant women and included a medical records reviews, telephone interviews and in-depth face-to-face interviews. RESULTS: The incidence of unintended pregnancy during the first and second years postpartum was 12.8 and 12.9 per 100 women-years, respectively. Eighty-six percent resulted from nonuse of contraception, and 88% ended in induced abortions. Median times of sexual activity resumption and contraception initiation were 2 months and 7.5 months postpartum, respectively. Approximately 17% of women did not adopt effective contraceptive methods until undergoing induced abortion. CONCLUSIONS: Concentrated efforts, including contraception counseling prior to discharge and early postpartum visits, are required to increase early use of effective contraception among rural-to-urban migrant women in Shanghai and to reduce their high level of postpartum unintended pregnancy.

Compartmentalization of gene expression during sporulation of Bacillus subtilis is compromised in mutants blocked at stage III of sporulation.

Mutations in the spoIIIA and spoIIIJ loci disrupt the compartmentalization of gene expression during sporulation of Bacillus subtilis. The breakdown in compartmentalization is not the cause of their being blocked in spore formation. Rather, it appears to be a consequence of the engulfed prespore's being unstable.

Cardiac 5-HT(4) serotoninergic receptors, 52kD SSA/Ro and autoimmune-associated congenital heart block.

It was recently reported that sera from patients with systemic lupus erythematosus contain antibodies reactive with the second extracellular loop of the serotoninergic 5-HT(4) receptor expressed in the human heart. This antibody response was associated with antibodies to 52kD SSA/Ro, a reactivity prevalent in mothers of children with congenital heart block (CHB). The current study was undertaken to determine whether the 5-HT(4) receptor is a target of the immune response in these mothers. Initial experiments demonstrated mRNA expression of the 5-HT(4) receptor in the human foetal atrium. Electrophysiologic studies established that human foetal atrial cells express functional 5-HT(4) receptors. Sera from 116 mothers enrolled in the Research Registry for Neonatal Lupus, whose children have CHB, were evaluated. Ninety-nine (85%) of these maternal sera contained antibodies to SSA/Ro, 84% of which were reactive with the 52kD SSA/Ro component by immunoblot. None of the 116 sera were reactive with the peptide spanning aa165-185 of the serotoninergic receptor. Rabbit antisera which recognized this peptide did not react with 52kD SSA/Ro or peptide aa365-382 in the C terminus. Although 5-HT(4) receptors are present and functional in the human foetal heart, maternal antibodies to the 5-HT(4) receptor are not associated with the development of CHB.