PubMed · 14224450
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U CIULLA. 1964. [CERVICAL HOSTILITY].. https://pubmed.ncbi.nlm.nih.gov/14224450/
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PROBLEM: This study was carried out to determine the presence of early pregnancy factor (EPF) activity in cervical mucus of pregnant women and explore the relationship between EPF activity in sera suggested it and in cervical mucus. METHOD OF STUDY: Cervical mucus and sera were collected from 60 pregnant women in different terms and 25 non-pregnant women, respectively. EPF activity was detected by rosette inhibition assay. RESULTS: EPF activity did exist in cervical mucus of pregnant women and was similar both in cervical mucus and sera. CONCLUSIONS: We report here for the first time the EPF activity in cervical mucus of pregnant women. The parallel change observed in sera suggested it might be another useful index in evaluating embryo viability.
The effect of the female genital tract on sperm is not well known. To investigate the effect of cervical mucus on the lipid content of human sperm, we co-incubated sperm and mucus samples in vitro such that the sperm were able to swim in and out of the mucus samples. High performance liquid chromatography and UV detection were used to measure the lipid contents of the sperm and cervical mucus before and after migration. The concentrations of cholesterol, vitamin E, sphingomyelin, diacyls and plasmalogens in sperm were all approximately 45% lower after migration in cervical mucus and the cervical mucus was found to be enriched in some of these lipid species after the sperm migration. These results suggest that the cervical mucus selects a subpopulation of sperm with a lower lipid content. However, a concomitant efflux of various lipid classes from the sperm to the cervical mucus cannot be ruled out.
The article focuses on the role of natural family planning NFP as a component of reproductive health. It distinguishes NFP from the concept of fertility awareness method. Furthermore, the effectiveness of NFP as determined by previous studies is presented and the advantages and disadvantages of NFP are highlighted. Additionally, factors that influence the use of NFP methods are examined. Finally, delivery strategies and options for mainstreaming NFP into reproductive health services are identified and discussed.