{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,26]],"date-time":"2026-09-26T03:17:28Z","timestamp":1790392648290,"version":"4.1.0"},"reference-count":30,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2025,5,22]],"date-time":"2025-05-22T00:00:00Z","timestamp":1747872000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Medical University of Silesia, , 40-055 Katowice, Poland","award":["PCN-1-176\/N\/2\/K."],"award-info":[{"award-number":["PCN-1-176\/N\/2\/K."]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>Genetic variations in the COL1A1 and COL1A2 genes have been linked to bone mineral density (BMD) and metabolic disorders. This study analyzed the associations of COL1A1 (rs1107946, rs1800012) and COL1A2 (rs42524) polymorphisms with BMD, obesity, and type 2 diabetes (T2D) in 554 postmenopausal women. Dual-energy X-ray absorptiometry assessed BMD, and genotyping was performed alongside an evaluation of metabolic and lifestyle factors. The COL1A1 rs1107946 AA genotype was associated with higher femoral neck BMD (p &lt; 0.05), an over 10-fold increased obesity prevalence (p = 0.038), and a 3.5-fold higher T2D risk (p = 0.011)\u2014a novel finding. The rs1800012 polymorphism showed age-dependent BMD effects: A allele carriers had lower femoral neck BMD in the 60\u201369 age group but higher total hip BMD in the 70\u201379 age group. Additionally, COL1A2 rs42524 GG homozygotes had a significantly higher incidence of maternal fractures (p &lt; 0.05). These results highlight COL1A1 rs1107946 as a potential marker for both skeletal and metabolic risk, demonstrate the age-specific effects of rs1800012 on BMD, and identify rs42524 as a possible genetic indicator of familial fracture risk. These insights may inform personalized approaches to osteoporosis and metabolic disease prevention.<\/jats:p>","DOI":"10.3390\/ijms26114981","type":"journal-article","created":{"date-parts":[[2025,5,22]],"date-time":"2025-05-22T07:04:28Z","timestamp":1747897468000},"page":"4981","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["The Impact of Selected COL1A1 and COL1A2 Gene Polymorphisms on Bone Mineral Density and the Risk of Metabolic Diseases in Postmenopausal Women"],"prefix":"10.3390","volume":"26","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0125-4323","authenticated-orcid":false,"given":"Edyta","family":"Cichocka","sequence":"first","affiliation":[{"name":"Department of Internal Medicine, Diabetology and Nephrology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6669-7216","authenticated-orcid":false,"given":"Sylwia Barbara","family":"G\u00f3rczy\u0144ska-Kosiorz","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, Diabetology and Nephrology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pawe\u0142","family":"Niemiec","sequence":"additional","affiliation":[{"name":"Department of Biochemistry and Medical Genetics, School of Health Sciences in Katowice, Medical University of Silesia, Medykow Street 18, 40-752 Katowice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0702-8121","authenticated-orcid":false,"given":"Wanda","family":"Trautsolt","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, Diabetology and Nephrology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Janusz","family":"Gumprecht","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, Diabetology and Nephrology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,5,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Thapa, S., Nandy, A., and Rendina-Ruedy, E. 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