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Pang Y, Guan Y, Jin X, Shen H, Liu L, Jia Q, Meng F, Zhang X. Association of TSHR Gene Copy Number Variation with TSH Abnormalities. Biol Trace Elem Res 2018; 186:85-90. [PMID: 29546542 DOI: 10.1007/s12011-018-1300-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 03/06/2018] [Indexed: 12/09/2022]
Abstract
Thyroid-stimulating hormone (TSH) is secreted by the pituitary gland and promotes thyroid growth and function, with increased TSH levels typically associated with hypothyroidism. By consulting the literature, we found that the TSHR, PAX8, and PDE4B genes are associated with thyroid function. Recently, copy number variations (CNVs) have been used as genetic markers to investigate inter-individual variation. Therefore, we investigated the relationship between the TSHR, PAX8, and PDE4B gene CNVs and TSH abnormalities, by calculating variations in gene copy number. Four hundred and eighty-one participants, 232 healthy controls and 249 patients with TSH abnormalities, were selected from three distinct areas in China with different iodine statuses. RT-PCR was used to detect CNVs. Urinary iodine concentrations (UIC) were measured by As3+-Ce4+ catalytic spectrophotometry. There was an association between a CNV at the TSHR gene and TSH abnormalities (p = 0.002). The distribution of PAX8 and PDE4B gene CNVs between patients with TSH abnormalities and healthy controls was not significantly different. UIC > 200 μg/l (OR = 1.49, 95% CI = 1.01-2.22) and the TSHR gene (OR = 6.01, 95% CI = 1.96-18.41) were found to be risk factors for TSH abnormalities. PAX8 and PDE4B gene CNVs were not significantly associated with TSH abnormalities. There was no significant interaction between UIC and any of the examined CNVs. In conclusion, the TSHR gene CNV was associated with the development of TSH abnormalities. No significant associations were revealed between urinary iodine levels and candidate gene CNVs.
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Affiliation(s)
- Yi Pang
- Key Laboratory of Etiology and Epidemiology, National Health and Family Planning Commission, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
| | - Yunfeng Guan
- Key Laboratory of Etiology and Epidemiology, National Health and Family Planning Commission, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
| | - Xing Jin
- Key Laboratory of Etiology and Epidemiology, National Health and Family Planning Commission, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
| | - Hongmei Shen
- Key Laboratory of Etiology and Epidemiology, National Health and Family Planning Commission, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China.
| | - Lixiang Liu
- Key Laboratory of Etiology and Epidemiology, National Health and Family Planning Commission, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
| | - Qingzhen Jia
- Institute for Endemic Disease Prevention and Treatment of Shanxi Province, Linfen, Shanxi, China
| | - Fangang Meng
- Key Laboratory of Etiology and Epidemiology, National Health and Family Planning Commission, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
| | - Xiaoye Zhang
- Key Laboratory of Etiology and Epidemiology, National Health and Family Planning Commission, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
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Ruggeri RM, Vicchio TM, Giovinazzo S, Certo R, Alibrandi A, Trimarchi F, Benvenga S, Trovato M. TP53 polymorphism may contribute to genetic susceptibility to develop Hashimoto's thyroiditis. J Endocrinol Invest 2015; 38:1175-82. [PMID: 25935255 DOI: 10.1007/s40618-015-0292-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2015] [Accepted: 04/09/2015] [Indexed: 10/23/2022]
Abstract
PURPOSE p53, which is encoded by the tumor suppressor gene TP53, plays a crucial role in the regulation of mechanisms of cell cycle arrest and apoptosis. Some SNPs of TP53, involving a different apoptotic ability of p53, have been associated with increased susceptibility to develop autoimmune diseases as well as cancer. We investigated the genotypic distribution of TP53 exon 4 SNPs in a cohort of Caucasian patients affected by Hashimoto's thyroiditis (HT). METHODS Peripheral blood for DNA extraction was collected from 109 Caucasian unrelated subjects, 79 HT patients and 30 healthy controls. SNPs analysis was carried out by amplification and sequencing of exon 4 TP53. RESULTS For the Pro72Arg (rs 1042522) SNP we found these rates in HT patients: 11.4% wild-type C/C (Pro72Pro), 24.0% heterozygous G/C (Pro72Arg), 64.6% homozygous G/G (Arg72Arg). The corresponding rates in healthy controls were 10, 46.7 and 43.3%, respectively. Thus, significantly different were G/C heterozygosity (24.0 vs 46.7 %, p = 0.039) and G/G homozygosity (64.6 vs 43.3%, p = 0.042). These differences were also confirmed when comparing our study population to published Caucasian control groups. The other described SNPs (Pro34Pro rs 11575998, Pro36Pro rs1800370, Pro47Ser rs1800371, and Arg110Leu rs 11540654) were absent or very rare in our study population. CONCLUSIONS Our preliminary data, the first on a Caucasian population, indicate an increased prevalence of the homozygous genotype Arg/Arg and a decreased prevalence of heterozygous genotype Arg/Pro of rs 1042522 in HT patients compared to controls, suggesting that such SNP may contribute to confer susceptibility to HT.
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Affiliation(s)
- R M Ruggeri
- Department of Clinical and Experimental Medicine, Endocrine Unit, University of Messina, Padiglione H, 4 Piano, AOU Policlinico Universitario "G. Martino", via Consolare Valeria, 1, 98125, Messina, Italy.
| | - T M Vicchio
- Department of Clinical and Experimental Medicine, Endocrine Unit, University of Messina, Padiglione H, 4 Piano, AOU Policlinico Universitario "G. Martino", via Consolare Valeria, 1, 98125, Messina, Italy
| | - S Giovinazzo
- Department of Clinical and Experimental Medicine, Endocrine Unit, University of Messina, Padiglione H, 4 Piano, AOU Policlinico Universitario "G. Martino", via Consolare Valeria, 1, 98125, Messina, Italy
| | - R Certo
- Department of Clinical and Experimental Medicine, Endocrine Unit, University of Messina, Padiglione H, 4 Piano, AOU Policlinico Universitario "G. Martino", via Consolare Valeria, 1, 98125, Messina, Italy
| | - A Alibrandi
- Department of Statistical Sciences (SEFISAST), University of Messina, Messina, Italy
| | - F Trimarchi
- Department of Clinical and Experimental Medicine, Endocrine Unit, University of Messina, Padiglione H, 4 Piano, AOU Policlinico Universitario "G. Martino", via Consolare Valeria, 1, 98125, Messina, Italy
| | - S Benvenga
- Department of Clinical and Experimental Medicine, Endocrine Unit, University of Messina, Padiglione H, 4 Piano, AOU Policlinico Universitario "G. Martino", via Consolare Valeria, 1, 98125, Messina, Italy
| | - M Trovato
- Department of Clinical and Experimental Medicine, Endocrine Unit, University of Messina, Padiglione H, 4 Piano, AOU Policlinico Universitario "G. Martino", via Consolare Valeria, 1, 98125, Messina, Italy
- Department of Human Pathology, University of Messina, Messina, Italy
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Rotondi M, Coperchini F, Magri F, Chiovato L. Serum-negative autoimmune thyroiditis: what's in a name? J Endocrinol Invest 2014; 37:589-91. [PMID: 24789542 DOI: 10.1007/s40618-014-0083-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Accepted: 04/08/2014] [Indexed: 10/25/2022]
Affiliation(s)
- M Rotondi
- Unit of Internal Medicine and Endocrinology, Laboratory for Endocrine Disruptors, Fondazione Salvatore Maugeri I.R.C.C.S, University of Pavia, Via S. Maugeri 10, 27100, Pavia, Italy
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