PMID- 35498428 OWN - NLM STAT- MEDLINE DCOM- 20220503 LR - 20221207 IS - 1664-2392 (Print) IS - 1664-2392 (Electronic) IS - 1664-2392 (Linking) VI - 13 DP - 2022 TI - Factors Defining the Association Between Vitamin D and Testosterone in Males With Type 2 Diabetes and Hypogonadism. PG - 842722 LID - 10.3389/fendo.2022.842722 [doi] LID - 842722 AB - OBJECTIVE: This study aimed to evaluate Serum 25-hydroxyvitamin D (25[OH]D) levels in diabetic men with and without hypogonadism and figured out the potential factors influencing the connection between vitamin D and testosterone. METHODS: A total of 367 men with type 2 diabetes mellitus (T2DM) were investigated, including 254 men with normal gonadal function (Group 1) and 113 men with hypogonadism (Group 2). Men with hypogonadism were classified as either hypogonadotropic hypogonadism (Group 2a) or hypergonadotropic hypogonadism (Group 2b). Serum 25(OH)D levels were detected by liquid chromatography-tandem mass spectrometry in all cases. Morning total testosterone (TT), estradiol (E), dehydroepiandrosterone (DHEA), prolactin (PRL), sex hormone-binding globulin (SHBG), luteinizing hormone (LH), follicle-stimulating hormone (FSH), thyroid function, parathyroid and adrenal hormones, fasting blood glucose (FBG), fasting insulin (Fins) and hemoglobin A1c (HbA1c) were also assessed. RESULTS: The prevalence of hypovitaminosis D in men with T2DM was up to 96.46%. Serum 25(OH)D levels were significantly lower in men with hypogonadism than those with eugonadism (16.65 +/- 6.44 ng/mL vs. 18.17 +/- 6.17 ng/mL, P=0.033). The lowest 25(OH)D level was observed in Group 2a (16.22 +/- 6.52 ng/mL). After adjustment for the selected factors, serum 25(OH)D concentrations were shown to be positively correlated with TT concentrations (r=0.137, P=0.032). The relationship between 25(OH)D and testosterone was altered by age, duration of T2DM, body mass index, and HbA1c. Serum 25(OH)D level was positively associated with serum TT level in men with age <60 years (r=0.180, P=0.003), or with duration>/=5 years (r=0.186, P=0.013), or with body mass index (BMI)>/=28kg/m(2) (r=0.431, P=0.000), or with HbA1c>/=9% (r=0.145, P=0.031). CONCLUSIONS: These findings indicate that type 2 diabetes patients with hypogonadism have lower 25(OH)D levels than those without hypogonadism. There seems to be a positive association between the serum 25(OH)D and TT levels, which affected by age, duration, BMI, and HbA1c. CI - Copyright (c) 2022 Hu, Han, Chen, Xiang, Wei, Gong, He, Su, Chen and Liu. FAU - Hu, Xin AU - Hu X AD - Endocrine and Diabetes Center, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China. FAU - Han, Xue AU - Han X AD - Endocrine and Diabetes Center, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China. FAU - Chen, Yu AU - Chen Y AD - Key Laboratory of Tradicional Chinese Medicine Syndrome and Treatment of Yingbing of State Administration of Traditional Chinese Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, China. FAU - Xiang, Pingping AU - Xiang P AD - Endocrine and Diabetes Center, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China. FAU - Wei, Xiao AU - Wei X AD - Key Laboratory of Tradicional Chinese Medicine Syndrome and Treatment of Yingbing of State Administration of Traditional Chinese Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, China. FAU - Gong, Tong AU - Gong T AD - Endocrine and Diabetes Center, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China. FAU - He, Zhiwei AU - He Z AD - Endocrine and Diabetes Center, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China. FAU - Su, Yafeng AU - Su Y AD - Endocrine and Diabetes Center, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China. FAU - Chen, Guofang AU - Chen G AD - Endocrine and Diabetes Center, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China. FAU - Liu, Chao AU - Liu C AD - Endocrine and Diabetes Center, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China. LA - eng PT - Journal Article DEP - 20220412 PL - Switzerland TA - Front Endocrinol (Lausanne) JT - Frontiers in endocrinology JID - 101555782 RN - 0 (Glycated Hemoglobin A) RN - 0 (Vitamins) RN - 1406-16-2 (Vitamin D) RN - 3XMK78S47O (Testosterone) SB - IM MH - *Diabetes Mellitus, Type 2/complications MH - Female MH - Glycated Hemoglobin MH - Humans MH - *Hypogonadism/complications MH - Male MH - Middle Aged MH - Testosterone MH - Vitamin D MH - Vitamins PMC - PMC9039328 OTO - NOTNLM OT - hypogonadism OT - males OT - testosterone OT - type 2 diabetes OT - vitamin D COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2022/05/03 06:00 MHDA- 2022/05/04 06:00 PMCR- 2022/01/01 CRDT- 2022/05/02 07:11 PHST- 2021/12/24 00:00 [received] PHST- 2022/02/14 00:00 [accepted] PHST- 2022/05/02 07:11 [entrez] PHST- 2022/05/03 06:00 [pubmed] PHST- 2022/05/04 06:00 [medline] PHST- 2022/01/01 00:00 [pmc-release] AID - 10.3389/fendo.2022.842722 [doi] PST - epublish SO - Front Endocrinol (Lausanne). 2022 Apr 12;13:842722. doi: 10.3389/fendo.2022.842722. eCollection 2022.