scholarly journals Prevalence of thyroid dysfunction and anti-thyroid peroxidase antibodies in vitiligo patients

Author(s):  
Jishna P. ◽  
M. P. Binitha ◽  
Abdul Latheef E. N. ◽  
V. P. Anilakumari

<p class="abstract"><strong>Background:</strong> Vitiligo is associated with various autoimmune diseases, including autoimmune thyroid disease. The objectives of the present study was to determine the prevalence of thyroid dysfunction and anti-thyroid peroxidase antibodies in patients with vitiligo, and to compare the clinical profile of anti-thyroid peroxidase positive and anti-thyroid peroxidase negative patients<span lang="EN-IN">.</span></p><p class="abstract"><strong>Methods:</strong> A cross-sectional comparative study was conducted in 100 patients with vitiligo and 100 controls. After dermatologic and systemic evaluation, serum thyroid hormones and anti-thyroid peroxidase antibody levels were measured in all the subjects.<strong></strong></p><p class="abstract"><strong>Results:</strong> Thyroid dysfunction was more common in the vitiligo group (27%) than in the controls. Serum thyroid stimulating hormone abnormalities were more common in the vitiligo group (27%) than in the controls (6%). The most common thyroid dysfunction was subclinical hypothyroidism. Anti-thyroid peroxidase antibody positivity was higher in the vitiligo group (36%) when compared to the controls (24%), and the most common type of vitiligo was vitiligo vulgaris (18%) in this group. Thyroid dysfunction and anti-thyroid peroxidase positivity were more common in women (58%) when compared to men (42%). There was a significantly higher prevalence of other autoimmune diseases in the vitiligo group (20%) compared to the controls (6%)<span lang="EN-IN">. </span></p><p class="abstract"><strong>Conclusions:</strong> This study shows a significant association between vitiligo and thyroid dysfunction, anti-thyroid peroxidase antibodies and other autoimmune diseases. We recommend that thyroid evaluation and regular follow-up should be done in patients with vitiligo for prompt detection of thyroid dysfunction<span lang="EN-IN">.</span></p>

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Cheng Han ◽  
Xinghai Xia ◽  
Aihua Liu ◽  
Xiaowen Zhang ◽  
Mi Zhou ◽  
...  

Thyroid hormone (TH) affects many metabolic processes such as promoting oxidation of sugar, fat, and protein in many tissues. Thyroid dysfunction is associated with metabolic disorders. The newly discovered adipocyte- and hepatocyte-derived cytokine, betatrophin, has been reported to be involved in metabolic diseases, but its influence on thyroid dysfunction is uncertain. Therefore, the present study aims to evaluate circulating betatrophin levels in subjects with different thyroid function status and to predict the factors associated with betatrophin levels, especially whether thyroid stimulating hormone (TSH), TH, or thyroid autoantibodies are associated with betatrophin levels. In the study, serum betatrophin was measured in the subjects grouped as overt hypothyroidism (OH), subclinical hypothyroidism (SCH), euthyroid with isolated thyroid peroxidase antibody positivity (isolated Ab), and healthy control (HC), according to their thyroid functions. From our results, we found that betatrophin may be associated with thyroid insufficiency but not thyroid autoimmunity. Thus, when interpreting the results of betatrophin, thyroid functions should also be taken into consideration.


2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Nermin Diab ◽  
Natalie R. Daya ◽  
Stephen P. Juraschek ◽  
Seth S. Martin ◽  
John W. McEvoy ◽  
...  

Abstract Prevalence estimates and evidence informing treatment targets for thyroid dysfunction largely come from studies of middle-aged adults. We conducted a cross-sectional analysis to determine the prevalence of thyroid dysfunction and risk factors for abnormal thyroid tests in participants aged ≥65 in the Atherosclerosis Risk in Communities (ARIC) study (N = 5,392). We measured serum concentrations of triiodothyronine (T3), free thyroxine (FT4), thyroid peroxidase antibody (Anti-TPO), and thyroid stimulating hormone (TSH). In this population (58% women, 22% black), 17% reported medication use for thyroid dysfunction. Among those not on treatment, the prevalence of overt and subclinical hypothyroidism was 0.82% and 6.06%, respectively. Overt and subclinical hyperthyroidism affected 0.26% and 0.78%, respectively. Multivariable adjusted TSH, FT4 and T3 levels were 25%, 1.3% and 3.9% lower in blacks compared to whites, respectively. Men were less likely to be anti-TPO positive compared to women (p < 0.001). Former and never smoking were associated with lower T3 and FT4 levels compared to current smoking. The prevalence of thyroid dysfunction in older adults is nearly 25%. Multiple illnesses can interact to contribute to declines in health. Additional attention to thyroid dysfunction and screening in this age group is recommended.


2015 ◽  
Vol 20 (2) ◽  
pp. 135-138 ◽  
Author(s):  
Mohammad Javad Yazdanpanah ◽  
Seyed Ali Seyedi Noghabi ◽  
Morteza Taghavi ◽  
Monavar Afzal Aghaee ◽  
Naghmeh Zabolinejad

Background and Objective: Activity of vitiligo has not been considered as a patient selection criteria in previous studies; we decided to compare the presence of elevated thyroid auto-antibodies in patients with progressive and stable vitiligo. Methods: Seventy-two patients with vitiligo were examined for thyroid problems and were divided into 2 groups of stable and progressive vitiligo according to their history and physical examination. Anti-thyroid peroxidase antibodies (anti-TPO antibodies), thyroxine (T4), and thyroid stimulating hormone (TSH) levels were assessed for all patients. Results: Elevated levels of anti-TPO antibodies were observed in 43.7% of the patients with stable vitiligo and in 37.5% of patients with progressive vitiligo, which was not statistically significant ( P = .315). Conclusion: This study not only confirmed thyroid dysfunction in patients with vitiligo but also showed that there was no difference in thyroid dysfunction and anti-TPO antibody levels in the subgroups of patients with stable or progressive vitiligo.


Author(s):  
Luís Raposo ◽  
Sandra Martins ◽  
Daniela Ferreira ◽  
João Tiago Guimarães ◽  
Ana Cristina Santos

Background:The prevalence of thyroid dysfunction and autoimmunity in the Portuguese population has not yet been estimated. However, the national prevalence of the metabolic syndrome remains high. The association of thyroid pathology with cardiovascular risk has been addressed but is still unclear. Our study aimed to evaluate the prevalence of thyroid dysfunction and autoimmunity and to assess the associations of thyroid-stimulating hormone and thyroid hormones and antibodies with metabolic syndrome, its components, and other possible determinants in a national sample.Material and Methods:The present study included a subsample of 486 randomly selected participants from a nationwide cross-sectional study sample of 4095 adults. A structured questionnaire was administered on past medical history and socio-demographic and behavioural characteristics. Blood pressure and anthropometric measurements were collected, and the serum lipid profile, glucose, insulin, hs- CRP, TSH, FT4, FT3 and thyroid antibodies were measured.Results:In our sample, the prevalence of hypothyroidism, hyperthyroidism and undiagnosed dysfunction was 4.9%, 2.5% and 72.2%, respectively. Overall, the prevalence of positivity for the thyroid peroxidase and thyroglobulin antibodies was 11.9% and 15.0%, respectively. A positive association was found between free triiodothyronine and metabolic syndrome (OR: 2.019; 95% CI: 1.196, 3.410). Additionally, thyroid peroxidase antibodies had a negative association with metabolic syndrome (OR: 0.465; 95% CI: 0.236, 0.917) and its triglyceride component (OR: 0.321; 95% CI: 0.124, 0.836).Conclusion:The prevalence of undiagnosed thyroid dysfunction and autoimmunity was high. Thyroid peroxidase antibodies were negatively associated with metabolic syndrome and its triglyceride component, whereas the free triiodothyronine level was positively associated with metabolic syndrome.


2020 ◽  
Vol 33 (8) ◽  
pp. 1027-1030
Author(s):  
Liisa Saare ◽  
Aleksandr Peet ◽  
Vallo Tillmann

AbstractObjectivesThe need for screening for autoimmune thyroid disease in children who have HLA-conferred susceptibility to type 1 diabetes (T1D), but have not yet been diagnosed with T1D, has not been thoroughly studied. The aim of this study was to describe the prevalence of positive thyroid peroxidase antibodies and its effect on thyroid function in children with genetic susceptibility to T1D as well as to describe the association between thyroid autoimmunity and HLA-DQ genotypes.MethodsCross-sectional study in 223 children (112 boys) aged 7.4–10.5 years with HLA-conferred susceptibility to T1D. TPOAb were measured in all children; thyroglobulin antibodies (TGAb) and thyroid function in TPOAb positive subjects.ResultsGirls had a significantly higher median TPOAb concentration than boys (12 vs 11 kU/L; p=0.001). Positive TPOAb occurred in 13.9% and positive TGAb in 4% of subjects. Only two children had mild changes in thyroid function. There was no association between HLA risk groups and the prevalence of TPOAb.ConclusionsTPOAb are common in children with HLA-conferred susceptibility to T1D, yet are weakly associated with thyroid function, suggesting limited value of thyroid screening in this cohort.


2019 ◽  
Vol 12 (3) ◽  
pp. 131-135
Author(s):  
Adam Grice

Subclinical hypothyroidism is a common condition associated with a raised thyroid-stimulating hormone and a normal serum free thyroxine that affects about 10% of females over 55 years in age. The most common cause is autoimmune thyroid disease, with 2.5% of patients with subclinical hypothyroidism progressing to clinically overt hypothyroidism each year. The rate of progression is higher in patients with anti-thyroid peroxidase antibodies and higher levels of thyroid-stimulating hormone. Only a small proportion of patients with subclinical hypothyroidism have symptoms, and although there is some debate in the literature about which patients should be treated, the National Institute for Health and Care Excellence clinical knowledge summaries give clear recommendations. There is an increased risk of cardiovascular disease in patients with subclinical hypothyroidism; it is uncertain whether treatment with levothyroxine reduces this risk. When deciding whether to treat subclinical hypothyroidism consider the patient’s age, symptoms, presence of anti-thyroid peroxidase antibodies, thyroid-stimulating hormone levels and risk factors such as cardiovascular disease.


2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
R. Dash ◽  
A. Mohapatra ◽  
B. S. Manjunathswamy

Aim.The aim of the study was to study the relation of vitiligo with demographic data like age, sex, and duration and determine the prevalence of thyroid autoimmunity in vitiligo patients.Materials and Methods.This study was a cross sectional study consisting of 100 patients clinically diagnosed (old and new) as having vitiligo irrespective of age or sex. Patients with known thyroid disease on supplementation therapy, or who had undergone thyroid surgery, those on antithyroid medication, patients with other causes of leukoderma, and cases who do not provide informed consent were excluded from the study. Serum TSH and anti-TPO antibodies were measured in all the patients.Results.The prevalence of anti-TPO antibody positivity was found to be 28%.Conclusion.According to our study, none of our vitiligo patients had symptoms or signs of thyroid disease at the time of presentation but, on biochemical evaluation, anti-TPO antibodies were found in a considerable number of patients. Hence, we recommend screening of these patients with thyroid antibodies.


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