title: [Hierdence of X-chromatin post partum].
abstract: Determinations of the X-chromatin frequency in buccal smears were performed in 33 pregnant women at the day before delivery and daily for seven days thereafter. In 23 women with a spontaneous delivery there was a statistically significant drop in the X-chromatin frequency after delivery being lowest on the second day. On the fifth day the X-chromatin frequency had reached the predelivery level. In 10 women with operative delivery by cesarean section and hormonal suppression of lactation no such changes in the X-chromatin-frequency have been noted.
mesh_terms: D000704:Analysis of Variance; D005260:Female; D006801:Humans; D009061:Mouth Mucosa / Q000378:metabolism; D049590:Postpartum Period; D011247:Pregnancy; D012728:Sex Chromatin / Q000378:metabolism*; D013997:Time Factors
vernacular_title: X-chromatinfrequenz post partum