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Updated: Aug 8, 2025
12:49
Mutagenesis and Analysis of Genetic Mutations in the GC-rich KISS1 Receptor Sequence Identified in Humans with Reproductive Disorders
Published on: September 4, 2011
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KISS1 Gene Variations and Susceptibility to Idiopathic Recurrent Pregnancy Loss
Fanting Meng1, Aiqin Zhao1, Haiying Lu1
1Department of Obstetrics and Gynecology, Suzhou High Tech Zone People's Hospital, No. 95, Huashan Road, High Tech Zone, Suzhou, 215129, Jiangsu Province, China.
Reproductive Sciences (Thousand Oaks, Calif.)
|February 28, 2023
Summary
Genetic variations in the KISS1 gene, specifically rs12998 and rs4889, are significantly associated with idiopathic recurrent pregnancy loss (iRPL). These KISS1 gene variants may serve as potential risk factors for unexplained recurrent pregnancy loss in women.
Area of Science:
- Reproductive biology
- Human genetics
- Molecular medicine
Background:
- Kisspeptin is crucial for reproductive regulation, with KISS1 gene variations linked to reproductive diseases.
- Limited data exists on the association between KISS1 variations and female reproductive disorders.
- Idiopathic recurrent pregnancy loss (iRPL) affects a significant number of women, necessitating research into its genetic underpinnings.
Purpose of the Study:
- To investigate the association between three missense single nucleotide polymorphisms (SNPs) in the KISS1 gene (rs12998, rs35431622, rs4889) and idiopathic recurrent pregnancy loss (iRPL).
- To analyze haplotype and linkage disequilibrium (LD) patterns for KISS1 variants in relation to iRPL.
Main Methods:
- Genotyping of 720 individuals for KISS1 SNPs (rs12998, rs35431622, rs4889) using the Polymerase Chain Reaction (PCR) method.
- Statistical analysis including association studies, haplotype analysis, and linkage disequilibrium (LD) assessment.
Main Results:
- The KISS1 variants rs12998 (G>A) and rs4889 (C>G) showed a significant association with iRPL (p < 0.05).
- No significant association was found for the rs35431622 (A>G) variant with iRPL.
- Three haplotypes (C-A-A, G-G-G, G-G-A) were significantly associated with iRPL, and significant LD was observed between rs12998 and rs35431622.
Conclusions:
- The rs12998 G>A and rs4889 C>G variants within the KISS1 gene are linked to unexplained recurrent pregnancy loss.
- These identified KISS1 variants may represent potential genetic risk factors contributing to the development of idiopathic recurrent pregnancy loss.
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