Significant increase of oral bacteria in the early pregnancy period in Japanese women
Significant increase of oral bacteria in the early pregnancy period in Japanese women
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DOI:
10.1111/jicd.12189
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发表时间:
2017-02-01
影响因子:
--
通讯作者:
Noguchi, Mayumi
中科院分区:
文献类型:
--
作者:
Fujiwara, Natsumi;Tsuruda, Keiko;Noguchi, Mayumi
Aim: Oral microflora during pregnancy is critical to oral health care in the mother and her child. We examined the changes in the oral microbiota between pregnancy and nonpregnancy periods.Methods: The study was performed using 132 healthy pregnant women enrolled from Hiroshima City Asa Citizens Hospital and 51 healthy nonpregnant women as control. During pregnancy, 132 subjects were assessed for seven microbial species by the cultured method and polymerase chain reaction at the early (7-16 weeks gestation), the middle (17-28 weeks), and the late (2939 weeks) pregnancy periods. Pregnant women completed a series of questionnaires regarding oral and systemic health and lifestyle habits.Results: The total cultivable microbial counts in the early pregnancy were significantly higher than that of the nonpregnant women (P < 0.05). The incidences of Porphyromonas gingivalis and Aggregatibacter actinomycetemcomitans in gingival sulcus during the early and middle pregnancy were significantly higher than the nonpregnant group (P < 0.05), while Prevotella intermedia and Fusobacterium nucleatum did not change. Candida species were more frequently detected during the middle and late pregnancy.Conclusion: The data suggest that pregnancy, especially in the early periods, promotes the proliferation of microorganisms in the oral cavity and facilitates a colonization of periodontal pathogens.