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Genetic screening of Chinese patients with hydatidiform mole by whole-exome sequencing and comprehensive analysis.


ABSTRACT:

Purpose

We aim to explore if there are any other candidate genetic variants in patients with a history of at least one hydatidiform mole (HM) besides the well-known variants in NLRP7 and KHDC3L.

Methods

The diagnosis of HM type was based on histopathology, and available HM tissues were collected for short tandem repeat (STR) genotyping to verify the diagnosis. DNA extracted from blood samples or decidual tissues of the 78 patients was subjected to whole-exome sequencing (WES).

Results

We identified five novel variants in NLRP7, two novel variants in KHDC3L, and a chromosome abnormality covering the KHDC3L locus among patients with HM. We found that patients with HM who carried heterozygous variants in KHDC3L had a chance of normal pregnancy. We also detected four novel genetic variants in candidate genes that may be associated with HM.

Conclusion

Our study enriched the spectrum of variants in NLRP7 and KHDC3L in Chinese HM patients and provided a new outlook on the effects of heterozygous variants in KHDC3L. The novel candidate genetic variants associated with HMs reported in this study will also contribute to further research on HMs.

SUBMITTER: Yang J 

PROVIDER: S-EPMC9596675 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature

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Publications

Genetic screening of Chinese patients with hydatidiform mole by whole-exome sequencing and comprehensive analysis.

Yang Jingyi J   Yan Liying L   Li Rong R   Liu Ping P   Qiao Jie J   Liu Yan Y   Zhi Xu X  

Journal of assisted reproduction and genetics 20220824 10


<h4>Purpose</h4>We aim to explore if there are any other candidate genetic variants in patients with a history of at least one hydatidiform mole (HM) besides the well-known variants in NLRP7 and KHDC3L.<h4>Methods</h4>The diagnosis of HM type was based on histopathology, and available HM tissues were collected for short tandem repeat (STR) genotyping to verify the diagnosis. DNA extracted from blood samples or decidual tissues of the 78 patients was subjected to whole-exome sequencing (WES).<h4>  ...[more]

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