Related Experiment Video
Updated: Apr 19, 2026

Author Spotlight: Genetic Profiling for Fluorouracil Response in Gastric Cancer
Published on: May 10, 2024
GPR30 Gene Polymorphisms Are Associated with Gynecomastia Risk in Adolescents
Hüseyin Anıl Korkmaz1, Tuba Edgünlü, Erdal Eren
1Division of Pediatric Endocrinology, Dr. Behcet Uz Child Disease and Surgery Training and Research Hospital, Izmir, Turkey.
Aim:
The G protein-coupled receptor, GPR30, which is a third estrogen receptor, has been shown to mediate estrogenic effects on the essential features of human breast cancer cells. The aim of this study was to evaluate the association between GPR30 single nucleotide polymorphisms and gynecomastia in males.
Methods:
This study included 109 male adolescents with gynecomastia and 104 controls. Follicle stimulating hormone, luteinizing hormone, total testosterone, estradiol (E2), dehydroepiandrosterone sulfate (DHEAS), and prolactin levels were measured. DNA was extracted from whole blood using a GeneJET Genomic DNA purification kit. The genotypes of the GPR30 gene (rs3808350, rs3808351 and rs11544331) were studied using a tetra-primer ARMS (amplification refractory mutation system) PCR approach.
Results:
The median E2 (11.80 vs. 16.86 IU/l, p < 0.001) and DHEAS levels (116.8 vs. 146.5 μg/dl, p = 0.044) were higher in the gynecomastia group. The G allele of rs3808350 and the A allele of rs3808351 were frequently observed in patients with gynecomastia. Gynecomastia was more common in patients with the GG genotype of rs3808350 and in patients with the AA genotype of rs3808351.
Conclusions:
Our results suggest that increased E2 levels, the G allele of rs3808350 and the A allele of rs3808351 might explain why certain adolescents are affected by gynecomastia.
More Related Videos
12:49Mutagenesis and Analysis of Genetic Mutations in the GC-rich KISS1 Receptor Sequence Identified in Humans with Reproductive Disorders
Published on: September 4, 2011
07:56Modified Yeast-Two-Hybrid System to Identify Proteins Interacting with the Growth Factor Progranulin
Published on: January 17, 2012
Related Concept Videos
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase
Activation and Inactivation of G Proteins
Pharmacogenetic Phenotypes: Alterations in Pharmacokinetics, Drug Targets and Biologic Milieu
Pharmacogenetics of Drug Transporters: P-Glycoprotein and Solute Carrier Transporters
GPCRs Regulate Adenylyl Cylase Activity
Pharmacogenomics: Identification of New Drug Targets