PMID- 15899960 OWN - NLM STAT- MEDLINE DCOM- 20050914 LR - 20210825 IS - 0021-972X (Print) IS - 0021-972X (Linking) VI - 90 IP - 8 DP - 2005 Aug TI - Association of cryptorchidism with a specific haplotype of the estrogen receptor alpha gene: implication for the susceptibility to estrogenic environmental endocrine disruptors. PG - 4716-21 AB - CONTEXT: The prevalence of cryptorchidism (CO) has increased during the past few decades in several countries, and this event has primarily been ascribed to the estrogenic effects of environmental endocrine disruptors (EEDs). Little is known, however, about the role of genetic susceptibility to EEDs in this phenomenon. OBJECTIVE: The objective of this study was to determine whether CO is associated with a specific haplotype of the gene for estrogen receptor alpha (ESR1) that mediates the estrogenic effects of EEDs. DESIGN: This was a case-control study. SETTING: The study was performed at the National Research Institute and University Hospitals. SUBJECTS: Sixty-three cryptorchid males, aged 1-13 yr, and 47 control males, aged 4-12 yr, were studied. INTERVENTION: After genotyping 15 single nucleotide polymorphisms widely distributed in the greater than 300-kb genomic sequences of ESR1, haplotype analysis was performed. MAIN OUTCOME MEASURE: Identification of a specific ESR1 haplotype associated with CO was the main outcome measure. RESULTS: A haplotype block was identified for an approximately 50-kb region encompassing single nucleotide polymorphisms 10-14 in the 3' region of ESR1 in both groups. The frequency of the estimated AGATA haplotype within the block was higher in the patients than in the control males (34.0% vs. 21.3%; P = 0.037), and the association of this haplotype with CO phenotype was significant in a recessive mode (P = 0.0060). The homozygosity for this haplotype was identified only in the patients, and the frequency of the homozygotes was significantly different between the two groups (10 of 63 vs. zero of 47; P = 0.0042). CONCLUSIONS: The association of CO with homozygosity for the specific ESR1 haplotype suggests the relevance of genetic susceptibility to EEDs in the development of CO. FAU - Yoshida, Rie AU - Yoshida R AD - Department of Endocrinology and Metabolism, National Research Institute for Child Health and Development, 2-10-1 Ohkura, Setagaya, Tokyo 157-8535, Japan. FAU - Fukami, Maki AU - Fukami M FAU - Sasagawa, Isoji AU - Sasagawa I FAU - Hasegawa, Tomonobu AU - Hasegawa T FAU - Kamatani, Naoyuki AU - Kamatani N FAU - Ogata, Tsutomu AU - Ogata T LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20050517 PL - United States TA - J Clin Endocrinol Metab JT - The Journal of clinical endocrinology and metabolism JID - 0375362 RN - 0 (Estrogen Receptor alpha) RN - 0 (Estrogens) SB - IM CIN - J Clin Endocrinol Metab. 2005 Aug;90(8):4975-7. PMID: 16087960 EIN - J Clin Endocrinol Metab. 2021 Jan 1;106(1):e411. PMID: 33146697 MH - Adolescent MH - Case-Control Studies MH - Child MH - Child, Preschool MH - Cryptorchidism/etiology/*genetics MH - *Environmental Exposure MH - Estrogen Receptor alpha/*genetics MH - *Estrogens MH - Genetic Predisposition to Disease MH - Haplotypes MH - Humans MH - Infant MH - Linkage Disequilibrium MH - Male MH - Polymorphism, Single Nucleotide EDAT- 2005/05/19 09:00 MHDA- 2005/09/15 09:00 CRDT- 2005/05/19 09:00 PHST- 2005/05/19 09:00 [pubmed] PHST- 2005/09/15 09:00 [medline] PHST- 2005/05/19 09:00 [entrez] AID - jc.2005-0211 [pii] AID - 10.1210/jc.2005-0211 [doi] PST - ppublish SO - J Clin Endocrinol Metab. 2005 Aug;90(8):4716-21. doi: 10.1210/jc.2005-0211. Epub 2005 May 17.