1
|
Meneghini V, Tebar WR, Santos IS, Janovsky CCPS, de Almeida-Pititto B, Birck MG, Lotufo PA, Goulart AC, Sgarbi JA, Teixeira PDFDS, Silva GTD, Benseñor IM. Potential Determinants of Thyroid Peroxidase Antibodies and Mortality Risk: Results From the ELSA-Brasil Study. J Clin Endocrinol Metab 2024; 109:e698-e710. [PMID: 37698138 DOI: 10.1210/clinem/dgad539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 08/16/2023] [Accepted: 09/09/2023] [Indexed: 09/13/2023]
Abstract
CONTEXT The presence of thyroid peroxidase antibodies (TPOAbs) may be considered as an indicator of adverse health outcomes. OBJECTIVE We aimed to investigate the potential determinants of TPOAb levels and to analyze the association between TPOAb titers and the risk of all- and specific-cause mortality. METHODS Baseline and longitudinal data of 13 187 participants from the ELSA-Brasil Study were analyzed. We investigated the association of TPOAb, detectability, positivity, and persistent positivity with sociodemographic and lifestyle factors using logistic regressions. Cox proportional hazards and Fine-Gray subdistribution hazard regression analyses were used to verify the association of TPOAbs with mortality. RESULTS The determinants of TPOAb detectability and positivity were younger age, higher body mass index, female sex, and former and current smoking status. Black, mixed, and other self-reported races, intermediate and higher education, and heavy drinking were determinants of detectable and positive TPOAb levels. Female sex, White race, and former smoking were determinants of persistent TPOAb positivity at 2 visits, although only the female sex maintained its association at 3 visits. Moreover, after multivariate adjustment, there were associations between higher levels of TPOAbs and higher risk of cancer-related mortality among men, and TPOAb detectability and mortality by other causes among women. CONCLUSION Sociodemographic and lifestyle-related factors were determinants of multiple TPOAb categories. TPOAb levels were associated with mortality risk; however, the low mortality rate in this sample might have compromised this finding. We suggest further studies to explore the clinical importance of detectable TPOAb levels, not only its positivity, as a potential marker of inflammation.
Collapse
Affiliation(s)
- Vandrize Meneghini
- Center for Clinical and Epidemiological Research, Universidade de São Paulo, São Paulo, SP 05508-000, Brazil
| | - William Rodrigues Tebar
- Center for Clinical and Epidemiological Research, Universidade de São Paulo, São Paulo, SP 05508-000, Brazil
| | - Itamar Souza Santos
- Center for Clinical and Epidemiological Research, Universidade de São Paulo, São Paulo, SP 05508-000, Brazil
- Department Internal Medicine, Universidade de São Paulo, São Paulo, SP 05508-000, Brazil
| | | | - Bianca de Almeida-Pititto
- Department of Preventive Medicine, Universidade Federal de São Paulo, São Paulo, SP 04023-062, Brazil
| | - Marina Gabriela Birck
- Center for Clinical and Epidemiological Research, Universidade de São Paulo, São Paulo, SP 05508-000, Brazil
| | - Paulo Andrade Lotufo
- Center for Clinical and Epidemiological Research, Universidade de São Paulo, São Paulo, SP 05508-000, Brazil
- Department Internal Medicine, Universidade de São Paulo, São Paulo, SP 05508-000, Brazil
| | - Alessandra Carvalho Goulart
- Center for Clinical and Epidemiological Research, Universidade de São Paulo, São Paulo, SP 05508-000, Brazil
| | - José Augusto Sgarbi
- Division of Endocrinology and Metabolism, Department of Medicine, Faculdade de Medicina de Marilia, Marilia, SP 17519-030, Brazil
| | | | - Gisela Tunes da Silva
- Institute of Mathematics and Statistics, Universidade de São Paulo, São Paulo, SP 05508-090, Brazil
| | - Isabela Martins Benseñor
- Center for Clinical and Epidemiological Research, Universidade de São Paulo, São Paulo, SP 05508-000, Brazil
- Department Internal Medicine, Universidade de São Paulo, São Paulo, SP 05508-000, Brazil
| |
Collapse
|
2
|
Huo J, Xu Y, Yu J, Guo Y, Hu X, Ou D, Qu R, Zhao L. Causal association between body mass index and autoimmune thyroiditis: evidence from Mendelian randomization. Eur J Med Res 2023; 28:526. [PMID: 37974233 PMCID: PMC10652572 DOI: 10.1186/s40001-023-01480-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Accepted: 10/28/2023] [Indexed: 11/19/2023] Open
Abstract
BACKGROUND Recent studies have reported associations between body mass index (BMI) and various autoimmune disorders. However, it is still uncertain whether there exists a direct cause-and-effect relationship between BMI and autoimmune thyroiditis (AIT). The aim of our study is to investigate the causal association between BMI and AIT. METHODS We conducted a two-sample summary data Mendelian randomization (MR) analysis using genome-wide association studies (GWAS) summary statistics data related to BMI as exposure, and GWAS summary statistic data sets for AIT as the outcome. Robustly associated single-nucleotide polymorphisms (SNPs) for BMI were selected as instrumental variables (IVs). We used the inverse variance weighted (IVW) method as the primary method and performed other MR methods such as MR-Egger regression, weighted median, simple mode, and weighted mode analyses for further validation. The slope of MR-Egger regression was used to correct for pleiotropy and provide estimates of causality. The p-value for the intercept in MR-Egger was utilized to detect any directional pleiotropic effects. Heterogeneity and sensitivity analyses were performed to assess the robustness of our findings. RESULTS Seventy-eight SNPs were selected from GWAS on BMI as the IVs. Our MR analysis using the IVW method showed a potential causal association between BMI and AIT (OR = 3.071, 95% CI 1.324-7.118). Findings from other MR methods are non-significant, although the direction of effect is consistent. There was no evidence that the result was affected by genetic pleiotropy (MR-Egger regression intercept = 0.01, SE = 0.00025, p = 0.719). Heterogeneity and sensitivity analyses revealed no significant heterogeneity among SNPs, and no single SNP drove the observed associations. CONCLUSION Our findings suggest a potential causal association between BMI and AIT, which may provide a basis for further investigation into the relationship between BMI and AIT. Further studies are required as only the IVW method shows significant results, and the case sample size is small.
Collapse
Affiliation(s)
- Jinlong Huo
- Department of Breast and Thyroid Surgery, The Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, Guizhou, China
| | - Yaxuan Xu
- Department of General Surgery, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, 149 Dalian Road, Huichuan District, Zunyi, Guizhou, China
| | - Jie Yu
- Department of General Surgery, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, 149 Dalian Road, Huichuan District, Zunyi, Guizhou, China
| | - Youming Guo
- Department of Breast and Thyroid Surgery, The Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, Guizhou, China
| | - Xiaochi Hu
- Department of Breast and Thyroid Surgery, The Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, Guizhou, China
| | - Dong Ou
- Department of Oncology, The First People's Hospital of Zunyi), The Third Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Rui Qu
- Department of Breast and Thyroid Surgery, The Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, Guizhou, China.
| | - Lijin Zhao
- Department of General Surgery, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, 149 Dalian Road, Huichuan District, Zunyi, Guizhou, China.
| |
Collapse
|
3
|
Lu Y, Xia Q, Wu L, Xie Z. Gender difference in association between low muscle mass and risk of non-alcoholic fatty liver disease among Chinese adults with visceral obesity. Front Nutr 2023; 10:1026054. [PMID: 36713086 PMCID: PMC9880268 DOI: 10.3389/fnut.2023.1026054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 01/02/2023] [Indexed: 01/15/2023] Open
Abstract
Background and aims Although the association between low muscle mass and the risk of non-alcoholic fatty liver disease is well-known, it has not been explored in viscerally obese populations by gender. Besides, whether low muscle mass still increases the NAFLD risk in subjects with visceral obesity, independent of obesity, is still unknown. The aim of this study was to explore the gender-specific association between low muscle mass and the risk of non-alcoholic fatty liver disease (NAFLD) in subjects with visceral obesity. Methods Overall, 1,114 participants aged 19-89 years were recruited in this retrospective study. Liver disease was diagnosed by hepatic ultrasound. Skeletal muscle mass was estimated by bioimpedance analysis and defined by the appendicular skeletal muscle index (ASMI). Gender-specific differences in the ASMI value were compared between NAFLD and control groups. Restricted cubic spline and multivariate logistic regression were performed to analyze the association (stratified by gender and age) between the ASMI and the risk of NAFLD, respectively. Results Middle-aged females (40-60 years) and males (of any age) with NAFLD had a significantly lower ASMI compared with controls (P-value < 0.05). An inverse linear association was found between the ASMI and risk of NAFLD (all P fornon-linearity > 0.05). Lower quartiles of the ASMI conferred independent risk of NAFLD compared to higher quartiles (all P for trend < 0.001). Low muscle mass conferred a higher risk of NAFLD in middle-aged females (adjusted odds ratio = 2.43, 95% confidence interval: 1.19-4.95) and males [18-39 years: 3.76 (1.79-7.91); 40-60 years: 4.50 (2.16-9.39); and >60 years: 4.10 (1.13-14.84)]. Besides, Low muscle mass and low muscle mass with obesity increase the risk of developing NAFLD, independent of obesity. Conclusion Among those with visceral obesity, low muscle mass increased the risk of NAFLD in males of any age, and middle-aged females, this may be explained by the postmenopausal decline in estrogen.
Collapse
|