Wagner G, Ottesen B
Ann Intern Med. 1982 Jun;96(6 Pt 2):921-3. doi: 10.7326/0003-4819-96-6-921.
We studied 18 young healthy women on the second, fourth, and 14th day of their menstrual cycle. Vaginal fluid was collected for measurement of oxygen and carbon dioxide tension (PO2 and PCO2) and specimens were collected for bacteriologic examination. The vaginal pH was measured at four different sites and the redox potential was measured in the top of the vagina. Staphylococcus aureus was found in three women. The PO2 ranged from 0 to 77 mm Hg on day 2; 0 to 76 mm Hg on day 4; and 0 to 53 mm Hg on day 14. The mean PCO2 (+/- SE) was 46 +/- 2 mm Hg on day 2; 62 +/- 4.5 mm Hg on day 4; and 50.6 +/- 8.5 mm Hg on day 14. The mean vaginal pH (+/- SE) was significantly higher on day 2 (6.6 +/- 0.3) compared with day 4 (5.3 +/- 0.3) and day 14 (4.2 +/- 0.2). The redox potential was significantly higher on day 14 compared with day 2 and day 4. No differences were found in values of women who took birth control pills and those of the women who did not.
我们对18名年轻健康女性在其月经周期的第2天、第4天和第14天进行了研究。收集阴道分泌物以测量氧分压和二氧化碳分压（PO2和PCO2），并采集样本进行细菌学检查。在四个不同部位测量阴道pH值，并在阴道顶端测量氧化还原电位。在三名女性中发现了金黄色葡萄球菌。第2天PO2范围为0至77毫米汞柱；第4天为0至76毫米汞柱；第14天为0至53毫米汞柱。第2天平均PCO2（±标准误）为46±2毫米汞柱；第4天为62±4.5毫米汞柱；第14天为50.6±8.5毫米汞柱。与第4天（5.3±0.3）和第14天（4.2±0.2）相比，第2天平均阴道pH值（±标准误）显著更高。与第2天和第4天相比，第14天氧化还原电位显著更高。服用避孕药的女性和未服用避孕药的女性之间未发现差异。
