Thyroid Autoantibodies Research Articles

7144 Lack of TPO Antibodies Heralds “Immune Escape” of Aggressive Thyroid Cancers of Follicular Origin: An International Retrospective Analysis of 1,943 Consecutive Thyroidectomy Cases

7144 Lack of TPO Antibodies Heralds “Immune Escape” of Aggressive Thyroid Cancers of Follicular Origin: An International Retrospective Analysis of 1,943 Consecutive Thyroidectomy Cases

Expression of thyroid antigens in the female reproductive system.

Thyroid autoimmunity (TAI) has been linked to fertility disorders and pregnancy complications, even in euthyroid women. However, the exact pathophysiological mechanism underlying this association is not fully understood. This study seeks to investigate the expression of thyroid antigens within the human female reproductive system, potentially identifying targets for thyroid antibodies. Human biopsies of endometrium and follicular granulosa cells were collected and thyroperoxidase (TPO) and thyroglobulin (TG) expression was evaluated in these tissues by immunohistochemistry. Results showed, for the first time, the expression of TG protein and confirmed the presence of thyroid TPO in human endometrium and granulosa cells. Results suggest that TPO antibodies (TPOAbs) and TG antibodies (TGAbs) could interact with TPO and TG expressed in the reproductive system in patients with positive thyroid antibodies, thereby disrupting the function of TPO and TG and generating an inflammatory response, leading to fertility disorders and pregnancy complications.

Impact of Thyroid Autoantibody Positivity on Inflammation and Platelet Indices among Hemodialysis Patients

Amaç: Hemodiyaliz hastalarında inflamasyon ve otoimmün hastalıkların sıklığı artmıştır. Tiroid antijenlerine karşı immün reaktiviteye bağlı olarak tiroid bezinin enflamasyonu ile karakterize otoimmün tiroid hastalığı (AİTH) bu popülasyonda yaygındır. Bu çalışmada hemodiyaliz hastalarında tiroid otoantikor pozitifliği (TAAP), trombosit fonksiyonu ve diğer inflamatuvar belirteçler arasındaki ilişki araştırılmıştır. Materyal ve Metod: Bu kesitsel çalışmaya, TAAP (n=22) ve tiroid otoantikor negatif (TAAN, n=132) gruplarına ayrılmış 154 hemodiyaliz hastası dahil edilmiştir. En az 3 aydır haftada üç kez diyalize giren hastalar levotiroksin almıyordu. Veriler rutin aylık testlerden ve hastane kayıtlarından elde edilmiştir. Dışlama kriterleri aktif malignite, yakın zamanda kemoterapi, enfeksiyonlar, karaciğer sirozu, talasemi, demir eksikliği, hemoliz ve yakın zamanda geçirilmiş majör cerrahiyi içermekteydi. Hastalar demografik veriler, metabolik parametreler, ortalama trombosit hacmi (MPV) ve trombosit sayısı (PLT) dahil olmak üzere trombosit indeksleri ve diğer inflamatuvar belirteçler açısından analiz edildi. Bulgular: TAAP hastaları TAAN hastalarına kıyasla anlamlı olarak daha yüksek MPV/PLT oranı (0.06/0.04, p=0.005) ve daha düşük PLT (163.05±46.67 vs 200.73±67.30, p=0.013) ve platelet kriteri (PCT) (0.15±0.04 vs 0.18±0.06, p=0.046) gösterdi. Metabolik parametreler veya diğer inflamatuvar belirteçler açısından gruplar arasında anlamlı bir fark gözlenmedi. Sonuç: Çalışmamız tiroid otoantikor pozitifliği olan (TAAP) ve olmayan (TAAN) hemodiyaliz hastaları arasında trombosit ve inflamatuvar indeksler açısından anlamlı farklılıklar ortaya koymuştur. Özellikle, TAAP hastaları daha düşük trombosit sayısı (PLT) ve trombosit kriteri (PCT) seviyelerinin yanı sıra daha yüksek ortalama trombosit hacmi (MPV) sergilemiştir. Bu bulgular, hemodiyaliz hastalarında TAAP ile trombosit fonksiyonu ve aktivasyonundaki değişiklikler arasında potansiyel bir ilişki olduğunu göstermektedir.

The effect of COVID-19 on the presentation of thyroid antibodies. Case report

The effect of COVID-19 on the presentation of thyroid antibodies. Case report

Antithyroid Antibodies and Reproductive Parameters of Women with Hashimoto’s Thyroiditis

ABSTRACT Objectives/introduction To evaluate the presence and concentration of antithyroid peroxidase (TPOAb) and antithyroglobulin (TGAb) antibodies at the onset of Hashimoto’s Thyroiditis (HT) and their association with disease characteristics and reproductive parameters before and after diagnosis. Methods This is a cross-sectional study with 65 women with HT followed in an outpatient clinic. The data was collected by interviews and review of medical records. The variables were characteristics of the disease; TPOAb and TGAb measurements; pregnancies; live children; premature births; pregnancy losses and infertility. We used the chi-square or Fisher’s exact tests, the Mann–Whitney test and the Spearman correlation. The significance level was set at 5%. Results The mean age at diagnosis was 38 (SD ± 11.1) years and the duration of the disease was 7.5 (SD ± 5.3) years; 46% of the women reported infertility periods. 59/65 (90.7%) women had TPOAb and 42 (64.6%) had TGAb antibodies. Comparison between the groups with and without TPOAb or TGAb showed no differences between all variables studied. We found positive correlations between TPOAb concentration and preterm births and thyroid volume; and TGAb concentration was positively correlated with age. Conclusion The presence of autoantibodies did not influence reproductive parameters; TPOAb concentration was correlated with premature births and thyroid volume.

Селен и нарушения функции щитовидной железы: от патофизиологии к терапевтическим возможностям

The review focuses on the discussion of the role of selenium in the thyroid hormone metabolism and its impact on the risk of thyroid disorders, among which the most common are autoimmune thyroiditis (Hashimoto's disease) and Graves' disease. Selenium, which is a component of selenoproteins, such as glutathione peroxidase and iodothyronine deiodinases, is involved in the thyroid hormone synthesis and regulation and has an antioxidant effect on thyrocytes. Selenium deficiency can contribute to the development of thyroid disorders, aggravating the inflammatory processes and increasing the levels of antibodies against thyroid peroxidase (TPO AB) and thyroglobulin (TG AB). Clinical trials show that selenium supplements can reduce the levels of thyroid autoantibodies in patients with autoimmune thyroiditis, thereby improving the thyroid structure and reducing inflammation. In patients with Graves' disease, selenium supplements demonstrate a positive effect on the ophthalmopathy progression and quality of life. However, the effect of selenium varies depending on the mineral baseline levels, which emphasizes the need for individual approach to treatment. The literature review shows an important role of selenium in maintaining health of the thyroid gland and emphasizes the need for further research aimed to optimize therapy based on the selenium supplementation.

Clinical factors as predictors of the development of severe recurrence of chronic spontaneous urticaria after completion of omalizumab therapy

Chronic spontaneous urticaria (CSU) affects about 1% of population, and its prevalence is increasing. The disease occurs in both children and adults, with predominance among women. At least two possible causes of CSU have been identified, two autoimmune endotypes, with different types of autoantibodies associated with activation of skin mast cells. In clinical practice, patients with CSU receive therapy accordance the clinical recommendations of the Ministry of Health of Russia for treatment of urticaria, according to the doctor’s algorithm of actions. In patients with CSU, symptoms are difficult to relieve due to special mechanisms of development this variant of disease. In recent years, specific markers, including clinical and laboratory parameters, have been described that can predict response to treatment patients with CSU. In clinical practice, we encounter difficulties in managing these patients. One of these is recurrence of urticaria symptoms after cessation of omalizumab treatment, which negatively affects compliance of patients and its psycho-emotional background. A retrospective analysis of 14 patients with CSU with resumption symptoms after completion of omalizumab treatment was carried out. Patients were divided into two groups: 1 group – 10 patients that symptoms began controlled with antihistamines (go to 1st therapy stage); and 2 group – 4 patients who need re-prescription of omalizumab (stay on 3rd treatment stage). The duration of CSU, activity according to UAS7, combination with development of angioedema, presence of concomitant allergic and autoimmune pathologies, level of CRP, total IgE, and presence of TPO antibodies were analyzed. There was no tendency relapses severity CSU after omalizumab discontinuation with age, gender, duration of the disease, presence of concomitant allergic diseases and drug hypersensitivity. In patients with high disease activity was tendency toward more severe relapses of CSU. The search and study of predictors response to treatment of CSC remains actual task. Further research to identify predictors of response to treatment and relapses severity help identify groups of patients for early transition to more effective treatment methods, which optimize and personalize management of patients with CSU.

Proportion and Covariates of Hypothyroidism Among Patients with Metabolic Syndrome Attending in Tertiary Care Hospital

Background: Hypothyroidism in patients with metabolic syndrome is associated with worse outcomes. However, this has not yet been adequately investigated in Bangladeshi people. Objective: To find out the proportion and covariates of hypothyroidism among patients with metabolic syndrome. Materials and methods: A hospital-based cross-sectional study was conducted with 323 patients from the Endocrinology and Allied Medicine Department at BIRDEM General Hospital. Patients with metabolic syndrome but no prior diagnosis of hypothyroidism were included. Detailed history, physical examinations, and thyroid function tests—Thyroid Stimulating Hormone (TSH), Free Thyroxine (FT4), and Anti-Thyroid Peroxidase Antibody (Anti-TPO Ab)—were performed. Subclinical hypothyroidism was defined as TSH >4.12 mIU/L and <10 mIU/L, while overt hypothyroidism was defined as TSH >10 mIU/L. Statistical analyses, including Chi-square tests, ANOVA, Pearson's correlation, and multiple linear regression, were conducted to explore associations between components of metabolic syndrome and thyroid dysfunction. Results: Out of the 323 participants, 62.8% were euthyroid, 28.5% had subclinical hypothyroidism, and 8.7% had overt hypothyroidism. Autoimmune hypothyroidism was confirmed in 31.6% of hypothyroid patients through elevated Anti-TPO Ab levels, a statistically significant finding. Hypothyroidism was significantly more prevalent in females and obese individuals. Significant positive correlations were observed between TSH and waist circumference (r=0.153), systolic blood pressure (r=0.271), and triglycerides (r=0.128), while FT4 showed negative correlations. Multiple linear regression indicated significant associations between waist circumference, fasting plasma glucose, and thyroid dysfunction. Conclusion: It was concluded that a higher proportion of metabolic syndrome cases were suffering from hypothyroidism. This necessitates that all MetS patients be screened for thyroid profile and autoimmune status and managed accordingly.

Efficacy of selenium supplementation for patients with Graves' hyperthyroidism during methimazole treatment: protocol for a systematic review and meta-analysis

IntroductionThe most common cause of hyperthyroidism, Graves' disease is a common organ-specific autoimmune disease. Selenium is an essential trace element of the human body that is mainly concentrated in the...

Prospective Follow-Up Study on Anti-Tpo Antibodies and Anti-Tg Antibodies in Euthyroid Subjects

Prospective Follow-Up Study on Anti-Tpo Antibodies and Anti-Tg Antibodies in Euthyroid Subjects

Vitamin D deficiency and thyroid cancer: is there a true association? A prospective observational study.

Literature data indicate a correlation between vitamin D deficiency and thyroid cancer (TC). We conducted this observational study to test this hypothesis. We studied 327 consecutive thyroidectomy cases, and compared patients with TC and those who had benign thyroid disease (BTD). In total, 183 cases with well-differentiated TC (group B) were compared with 144 cases of BTD (group A). We defined 25-hydroxyvitamin D (25(OH)VitD) values <10ng/ml as severe vitamin D deficiency (15.4%), 10-30ng/ml as inadequacy (70.4%) and >30ng/ml as adequate (14.2%). We further used a cut-off point of 30ng/ml (used in a recent meta-analysis) to classify patients as vitamin D deficient or not. There was no statistically significant difference in the following: age, size of the thyroid gland, preoperative calcium levels, preoperative parathormone and vitamin D levels, body mass index and anti-thyroid antibodies. Only thyroid-stimulating hormone and weight of the thyroid gland were found to differ. There was no significant difference in mean vitamin D levels (group A = 19.82ng/ml [sd 9.59] vs group B = 19.69ng/ml [sd 11.34]; p = 0.917). The same was found when we compared the two groups according to the three categories of vitamin D values (deficiency, inadequacy, adequacy; p = 0.485) and when we performed the analysis based on all threshold levels (10, 20 and 30ng/ml; p = 0.328). Using various statistical methods, no correlation was found between vitamin D deficiency and differentiated TC (overall, microcarcinomas, macrocarcinomas). Based on our results, no correlation between vitamin D deficiency and TC was confirmed, contradicting and questioning the results of two recent meta-analyses.

Zinc and Ferritin Levels and Their Associations with Functional Disorders and/or Thyroid Autoimmunity: A Population-Based Case-Control Study.

Population zinc and iron status appear to be associated with an increased risk of thyroid function abnormalities and thyroid autoimmunity (AITD). In the present study, we aimed to determine whether zinc and/or iron levels (assessed by ferritin levels) were associated with the presence of AITD and with alterations in thyroid function. A population-based case-control study (n = 1048) was conducted (cases: n = 524; controls: n = 524). Participants were measured for blood concentrations of zinc and ferritin, TSH, FT4, FT3, and thyroid autoantibodies. No significant differences were found in relation to ferritin levels between cases and controls. Among cases, the prevalence of low zinc levels in those with hypothyroidism (both subclinical and overt) was 49.1% [odds ratio (OR) of low zinc levels: 5.926; 95% CI: 3.756-9.351]. The prevalence of low zinc levels in participants with hyperthyroidism (both subclinical and overt) was 37.5% [OR of low zinc levels: 3.683; 95% CI: 1.628-8.33]. The zinc value that best discriminated the highest frequency of AITD was 70.4 µg/dL [sensitivity: 0.947, 1-specificity: 0.655, specificity: 0.345]. The highest frequency of AITD was calculated based on a zinc value <70 µg/dL (relative to a normal value), with this frequency being significantly higher in cases than in controls [OR: 9.3; 95% CI: 6.1-14.3 (p = 0.001)]. In conclusion, the results of our study suggest that zinc deficiency is associated with an increased frequency of functional thyroid disorders and thyroid autoimmunity.

Expression of integrin α4β1 and α4β7 on B cells correlates with autoimmune responses in Graves’ disease

BackgroundIntegrins are upregulated on endothelial cells and T-lymphocytes in autoimmune thyroid disease (AITD), potentially contributing to immune response localization. The role of integrins on B-cells in AITD remains unclear. MethodsPeripheral blood samples were collected from healthy controls (n = 56), patients with Graves’ disease (GD) (n = 37) and Hashimoto’s thyroiditis (HT) (n = 52). Ultrasound-guided fine-needle aspiration (FNA) of the thyroid was performed in patients with non-autoimmune thyroid disease (nAITD) (n = 19), GD (n = 11), and HT (n = 40). Integrins α4β7, α4β1, and αEβ7 in B cells were measured by flow cytometry. Serum zonulin levels were quantified via ELISA. Associations of integrins on B cells with thyroid hormones, thyroid autoantibodies, AITD duration, and zonulin were analyzed. ResultsHT patients exhibited lower α4β7 and higher α4β1 expression on B cells compared to healthy controls and GD patients. While α4β7 was predominant on circulating B cells, the dominant integrin expressed on intrathyroidal B cells varied with specific thyroid diseases. In GD patients, α4β7 and α4β1 expression on circulating B cells correlated positively and negatively with thyroid function and thyroid stimulating immunoglobulins (TSI) levels, respectively. Intrathyroidal α4β1+ B cells positively correlated with TSH levels in HT patients. Additionally, serum zonulin was elevated in HT patients, and intrathyroidal α4β7+ B cells and α4β1+ B cells correlated negatively and positively with zonulin levels, respectively. Integrin αEβ7 on B cells showed no significant association with AITD. ConclusionIntegrins expressed on B cells potentially play a role in the pathogenesis of AITD and might serve as immune biomarkers for the disease.

Autoimmune Hypothyroidism Associated with Helicobacter Pylori Infection

Objective: The study aimed to investigate the correlation between Helicobacter pylori (H. pylori) and thyroid autoimmunity. Material and Methods: To demonstrate the possible correlation between H. pylori infection and autoimmune hypothyroidism, 200 individuals were enrolled in this research (100 patients with active H. pylori infection and 100 healthy controls). All of them were tested for serum levels of thyroid hormones, thyroid stimulating hormone (TSH), and autoantibodies, as well as Helicobacter pylori-Immunoglobulin G (H. pylori-IgG) and cytotoxin-associated gene A-Immunoglobulin G (cagA-IgG) antibodies. Results: The study found that H. pylori infection was associated with higher levels of TSH, thyroperoxidase and thyroglobulin (TPO and TG) (p-value&lt;0.000, 0.001 and 0.006, respectively) and a significant decrease in the levels of free-thyroid hormone (FT3 and FT4) (p-values=0.008 and 0.007 respectively) in patients compared with the control group. Moreover, using Pearson’s correlation tests, significant proportional correlations were found between H. pylori IgG and TSH (r=0.302, p-value=0.001), and a significant negative correlation was found between anti-H. pylori-IgG and with FT3 and FT4 (r=-0.261, p-value=0.003 and r=-0.260, p-value=0.003, respectively). Moreover, Spearman’s correlation results showed that H. pylori IgG was positively linked to TPO (r=0.531, p-value&lt;0.001) and TG (r=0.320, p-value=0.001). Conclusion: The current investigation found that H. pylori infection was linked to higher concentrations of thyroid autoantibody and TSH and lower levels of thyroid hormones, suggesting that the bacterium may play a role in the development of subclinical autoimmune hypothyroidism.

Phenome-Wide Association Study of Latent Autoimmune Diabetes from a Southern Mexican Population Implicates rs7305229 with Plasmatic Anti-Glutamic Acid Decarboxylase Autoantibody (GADA) Levels.

Latent autoimmune diabetes in adults (LADA) is characterized by the presence of glutamate decarboxylase autoantibodies (GADA). LADA has intermediate features between type 1 diabetes and type 2 diabetes. In addition, genetic risk factors for both types of diabetes are present in LADA. Nonetheless, evidence about the genetics of LADA in non-European populations is scarce. This study aims to perform a genome-wide association study with a phenome-wide association study of LADA in a southeastern Mexican population. We included 59 patients diagnosed with LADA from a previous study and 3121 individuals without diabetes from the MxGDAR/ENCODAT database. We utilized the GENESIS package in R to perform the genome-wide association study (GWAS) of LADA and PLINK for the phenome-wide association study (PheWAS) of LADA features. Nine polymorphisms reach the nominal association level (1 × 10-5) in the GWAS. The PheWAS showed that rs7305229 is genome-wide and associated with serum GADA levels in our sample (p = 1.84 × 10-8). rs7305229 is located downstream of the FAIM2 gene; previous reports associate FAIM2 variants with childhood obesity, body mass index, body adiposity measures, lymphocyte CD8+ activity, and anti-thyroid peroxidase antibodies. Our findings reveal that rs7305229 affects the GADA levels in patients with LADA from southeastern Mexico. More studies are needed to determine if this risk genotype exists in other populations with LADA.

Omalizumab for the Treatment of Chronic Spontaneous Urticaria in Adults and Adolescents: An Eight-Year Real-Life Experience.

Background: Omalizumab, an anti-IgE monoclonal antibody, is an effective treatment for patients with chronic spontaneous urticaria (CSU) resistant to antihistamines, but about 10% are unresponsive. Our aim was to assess the effectiveness, safety, and drug survival (DS) of omalizumab by considering clinical and laboratory characteristics. Methods: We conducted a retrospective study on 296 patients with severe CSU treated with omalizumab. Disease activity, comorbidities, and serum levels of total IgE and anti-thyroid autoantibodies were evaluated over a period of up to 8 years. DS was analyzed using unadjusted Kaplan-Meier survival curves. When applicable, the risk of discontinuation was assessed using Cox regression analysis. Results: Out of 296 patients, 118 (40.4%) were early responders, 72 (25.0%) were late responders, 76 (26.0%) were partial responders, and 25 (8.6%) were non-responders. Early responders were more likely to be patients without associated inducible urticaria (p = 0.021, χ2 = 9.692), without autoimmune thyroiditis (p = 0.007, χ2 = 12.037), and those with higher IgE levels (p = 0.039, χ2 = 8.385). Overall, DS was 53.5% at 8 years, primarily due to clinical remission. DS due to inefficacy and clinical remission were 83.9% and 62.1%, respectively, at 8 years. No patients discontinued omalizumab due to adverse events. Patients with normal IgE levels (p = 0.012, HR = 4.639, CI: 1.393-15.445) and those with autoimmune thyroiditis (p = 0.028, HR = 3.316, CI: 1.128-8.718) had a higher risk of discontinuing omalizumab due to inefficacy. Conclusions: This study confirms the long-term effectiveness and safety of omalizumab in the treatment of CSU over a period of up to 8 years. Most patients discontinued omalizumab due to clinical remission, while only 5.1% discontinued it due to ineffectiveness.

Updates on the Association Between Vitiligo and Thyroid Diseases: A Systematic Review.

The main objective of this study is to estimate the prevalence of thyroid diseases in patients with vitiligo and investigate the potential shared autoimmune mechanisms underlying the co-occurrence of vitiligo and thyroid diseases. To locate research that met the inclusion criteria, a thorough computerized search of relevant databases was carried out. A comprehensive search was carried out on PubMed, SCOPUS, Science Direct, and Web of Science to locate relevant material. Our data included 13 trials with 82,230 participants, and 40,116 (48.8%) of them were males. The prevalence of thyroid disorders ranged from 3.2% to 32.1%, with a total prevalence of 2,906 (3.5%). Vitiligo patients are more likely to have a number of immunological comorbidities, underscoring the serious effects of the illness on overall health, especially thyroid disorders. The correlation between vitiligo and positive thyroid peroxidase antibodies, hypothyroidism, and autoimmune thyroiditis is notably high. We found a strong association between vitiligo and the incidence of thyroid disorders, particularly autoimmune thyroid disorders. The findings emphasize the necessity of identifying and treating thyroid dysfunction in vitiligo patients, as it might affect the clinical course of the skin condition and overall patient health. Future research is required to standardize study methodology, investigate underlying mechanisms, and create integrated therapy and screening regimens.

Prevalence of subclinical hypothyroidism and longitudinal thyroid stimulating hormone changes in youth with metabolic dysfunction-associated steatotic liver disease: an observational study.

Studies on adults have shown an association between overt or subclinical hypothyroidism (SH) and metabolic dysfunction-associated steatotic liver disease (MASLD). The goal of this study was to assess the relationship between thyroid-stimulating hormone (TSH) levels and the histological characteristics of MASLD in youth. This observational study used prospectively collected liver biopsy and clinical data from youth enrolled in two pediatric clinical trials in the Nonalcoholic Steatohepatitis Clinical Research Network (NASH CRN). Thyroid assays were compared between youth with MASLD and population-based controls aged ≤18 years from the National Health and Nutrition Examination Survey (NHANES). Individuals with overt hypothyroidism, abnormal anti-thyroid antibody, or thyroid-related medications were excluded. SH was defined as TSH between 4.5-10.0uIU/L. Multinomial logistic regression was used to test the association between TSH and MASLD histological changes at baseline, adjusting for age, sex, race/ethnicity, and body mass index. Mixed-effect models, including treatment and time, were used for the longitudinal analysis. Mean TSH, total thyroxine (T4), total triiodothyronine (T3), and free T4 levels were higher (p<0.001) in the NASH CRN cohort (n=218; 421 observations) than in the NHANES cohort (n=2,198). TSH levels were positively associated with increased steatosis over time (p=0.03). SH was associated with borderline or definite metabolic-associated steatohepatitis on histology at baseline (p=0.03) and with changes in fibrosis over time (p=0.01). The association between TSH and steatosis severity in individuals with normal thyroid hormone concentrations suggests an independent role of TSH in MASLD.

Comparison of American Thyroid Association and Conventional Criteria in Diagnosing Hypothyroidism among Pregnant Ladies Attending a Tertiary Care Hospital

ABSTRACT Background: There is continuing debate regarding universal screening, the use of a thyroid-stimulating hormone (TSH) cutoff value, and levothyroxine replacement in frequently encountered issues like subclinical hypothyroidism in pregnancy. The study was intended to compare the American Thyroid Association (ATA)-2011 defined trimester-specific TSH with conventional TSH values in the diagnosis of newly detected hypothyroidism in pregnancy, as there are no trimester-specific reference ranges of TSH in Bangladesh. Methods: This cross-sectional, observational study enrolled 175 pregnant women recruited by convenient sampling from the Department of Obstetrics and Gynecology, BIRDEM General Hospital. As per the study protocol, investigations were advised. TSH, free thyroxine, and antithyroid antibodies were tested using the chemiluminescent technique. Data were analyzed by SPSS version 25. Nonparametric tests were chosen for statistical analysis. Results: The majority (53%) of the participants, were 30 years of age or younger. Using the ATA-2011 defined trimester-specific reference ranges of TSH, 32% had hypothyroidism. While using the conventional criteria (TSH – 0.4–4 mIU/L), hypothyroidism was diagnosed in 20.6% of cases. Conclusions: There is statistically significant discordance in diagnosing hypothyroidism in pregnancy between the two criteria.

Thyroid function and antibody testing in patients receiving pegylated-interferon therapy

Thyroid function and antibody testing in patients receiving pegylated-interferon therapy