Metagenomic profiling of placental tissue suggests DNA virus infection of the placenta is rare.
J Gen Virol
; 102(11)2021 11.
Article
en En
| MEDLINE
| ID: mdl-34723784
ABSTRACT
It is widely recognized that pathogens can be transmitted across the placenta from mother to foetus. Recent re-evaluation of metagenomic studies indicates that the placenta has no unique microbiome of commensal bacteria. However, viral transmission across the placenta, including transmission of DNA viruses such as the human herpesviruses, is possible. A fuller understanding of which DNA virus sequence can be found in the placenta is required. We employed a metagenomic analysis to identify viral DNA sequences in placental metagenomes from full-term births (20 births), pre-term births (13 births), births from pregnancies associated with antenatal infections (12 births) or pre-term births with antenatal infections (three births). Our analysis found only a small number of DNA sequences corresponding to the genomes of human herpesviruses in four of the 48 metagenomes analysed. Therefore, our data suggest that DNA virus infection of the placenta is rare and support the concept that the placenta is largely free of pathogen infection.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Placenta
/
Infecciones por Virus ADN
/
Virus ADN
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Metagenoma
Límite:
Female
/
Humans
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Male
/
Newborn
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Pregnancy
Idioma:
En
Revista:
J Gen Virol
Año:
2021
Tipo del documento:
Article
País de afiliación:
Reino Unido