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Acta Obstet Gynecol Scand ; 96(10): 1188-1196, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28699189

RESUMO

INTRODUCTION: Recently, an association between human papillomavirus infection and both spontaneous abortion and spontaneous preterm delivery was suggested. However, the reported human papillomavirus prevalence in pregnant women varies considerably and reliable conclusions are difficult. We aimed to investigate human papillomavirus infection in placental tissue of a Danish study cohort. Furthermore, we studied the cellular localization of human papillomavirus. MATERIAL AND METHODS: In this prospective case-control study, placental tissue was analyzed for human papillomavirus infection by nested PCR in the following four study groups: full-term delivery (n = 103), spontaneous preterm delivery (n = 69), elective abortion (n = 54), and spontaneous abortion (n = 44). Moreover, human papillomavirus cellular target was identified using in situ hybridization. RESULTS: Human papillomavirus prevalence in placental tissue was 8.7% in full-term deliveries, 8.8% in spontaneous preterm deliveries, 10.9% in spontaneous abortions, and 20.4% in elective abortions. Twelve different human papillomavirus types were detected, and placental human papillomavirus infection was associated to a disease history of cervical cancer. Human papillomavirus DNA was identified in trophoblast cells, cells of the placental villi mesenchyme including Hofbauer cells, and in parts of the encasing endometrium. CONCLUSION: Placental human papillomavirus infections are not likely to constitute a risk factor for spontaneous preterm labor or spontaneous abortions in the Danish population, although an effect of human papillomavirus DNA in placental cells cannot be excluded.


Assuntos
Aborto Espontâneo/virologia , Trabalho de Parto Prematuro/virologia , Infecções por Papillomavirus/complicações , Placenta/virologia , Complicações Infecciosas na Gravidez/virologia , Nascimento Prematuro/virologia , Estudos de Casos e Controles , Dinamarca , Feminino , Humanos , Gravidez , Estudos Prospectivos , Trofoblastos/virologia
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