In situ variation of cervical mucus pH during exposure to atmospheric air

Autor: Correa C.H.M., Mattos A.L.G., Ferrari A.N.
Jazyk: angličtina
Rok vydání: 2001
Předmět:
Zdroj: Brazilian Journal of Medical and Biological Research, Vol 34, Iss 6, Pp 767-770 (2001)
Druh dokumentu: article
ISSN: 0100-879X
0034-7310
Popis: The objective of the present study was to determine if exposure of cervical mucus to air during specular examination could modify mucus pH. Detection of changes is justified because of their possible interference with sperm-mucus interaction, since an acidic pH is unfavorable to sperm penetration and is associated with infertility due to the cervical factor. Twenty women with good quality mucus were evaluated. pH measurements of ecto- and endocervical mucus were made in situ using a glass electrode after 0-, 5- and 10-min exposure to air. There was a progressive alkalinization of mucus pH. Mean values of ectocervical mucus pH were 6.91, 7.16 and 7.27, while mean values of endocervical mucus pH were 7.09, 7.34 and 7.46 at 0, 5 and 10 min, respectively. Significant differences were found between the mean values obtained at 0 and 5 min, and at 0 and 10 min (P
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