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Antithyroid peroxidase

Hoda G Bakr, Takwa E Meawed
An association between low levels of vitamin D and Hashimoto's thyroiditis was suggested. This study aimed to determine the status of 25 (OH) vitamin D in Hashimoto's thyroiditis. A case-control study was designed, a Hashimoto's thyroiditis patient group (n=30) and two control groups including Graves' disease (30) and a healthy control group (20). TSH, Free T3, Free T4, antithyroid antibodies (antithyroglobulin and antithyroid peroxidase), calcium and serum 25 (OH) vitamin D were assessed. Vitamin D and calcium levels were significantly lower in Hashimoto thyroiditis and Graves' disease versus healthy controls...
June 2017: Egyptian Journal of Immunology
Alberto Bocchetta, Luca Ambrosiani, Gioia Baggiani, Claudia Pisanu, Caterina Chillotti, Raffaella Ardau, Fernanda Velluzzi, Doloretta Piras, Andrea Loviselli, Antonello Pani
BACKGROUND: Concerns about the adverse effects of long-term treatment with lithium include reduced renal function. In the present study, we examined comorbidities which may be associated with chronic kidney disease in a cohort of patients treated with lithium for up to 41 years. METHODS: We studied 394 patients who were treated with lithium for ≥ 5 years. The potential role of comorbidities (diabetes, concurrent antihypertensive medication, treatment with L-thyroxine, and presence of antithyroid peroxidase/microsomes, anti-thyroglobulin, and/or anti-thyrotropin-receptor antibodies) was analysed...
March 1, 2018: International Journal of Bipolar Disorders
Kamal K Solanki, Mahmood Al-Majmuei, Douglas H N White
BACKGROUND: Autoimmune thyroid disease affects 1% of the general population, and autoimmune thyroid antibodies are noted in up to 15%. OBJECTIVE: We hypothesized systemic sclerosis (SSc) is associated with higher prevalence of antithyroglobulin (anti-Tg) and anti-thyroid peroxidase (anti-TPO) antibodies) to justify monitoring of thyroid function for earlier detection and treatment. METHODS: Waikato Hospital SSc clinic patients were prospectively tested for thyroid function tests and antithyroid antibodies (ATAs)...
February 15, 2018: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
Tomáš Šálek, Ishraq Dhaifalah, Dagmar Langova, Jana Havalová
BACKGROUND: To establish maternal thyroid-stimulating hormone (TSH) reference ranges for first trimester screening from 11 + 0 to 13 + 6 weeks of gestation. METHODS: A total of 10 592 singleton and 201 twin consecutive Caucasian pregnant women who underwent simultaneously prenatal first trimester Down's syndrome screening and thyroid function screening from January 2010 to November 2017 were included in the study. Women with positive antithyroid peroxidase antibody (TPOAb) and positive personal history of thyroid disease were previously excluded...
February 3, 2018: Journal of Clinical Laboratory Analysis
Abbas Ali Tam, Didem Ozdemir, Cevdet Aydın, Nagihan Bestepe, Serap Ulusoy, Nuran Sungu, Reyhan Ersoy, Bekir Cakir
PURPOSE: We aimed to investigate the relation between preoperative serum thyrotrophin (TSH) and clinicopathological features in patients with papillary thyroid carcinoma (PTC) and microcarcinoma (PTMC). METHODS: Patients who underwent thyroidectomy and diagnosed to have benign nodular disease or PTC/PTMC in our clinic were evaluated retrospectively. Patients with a previous history of thyroid surgery, patients using antithyroid medications or thyroid hormone and patients with tumors known to be unresponsive to TSH were excluded...
January 27, 2018: Endocrine
Qingling Guo, Dan Wu, Huixin Yu, Jiandong Bao, Shiqiao Peng, Zhongyan Shan, Haixia Guan, Weiping Teng
BACKGROUND: Dysregulated DNA methylation in lymphocytes has been linked to autoimmune disorders. The aims of this study were to identify global DNA methylation patterns in patients with autoimmune thyroid diseases (AITDs) and to observe methylation changes after treatment for these conditions. METHODS: We conducted a cross-sectional study design including the following patients: 51 with newly diagnosed Graves' disease (GD), 28 with autoimmune hypothyroidism (AIT), 29 with positive thyroid autoantibodies (pTAb) and 39 matched healthy volunteers...
January 16, 2018: Thyroid: Official Journal of the American Thyroid Association
Saeed Razmeh, Amir Hasan Habibi, Farzad Sina, Elham Alizadeh, Monireh Eslami
Background: Stiff person syndrome (SPS) is a rare neurological disease resulting in stiffness and spasm of muscles. It initially affects the axial muscles and then spread to limb muscles. Emotional stress exacerbated the symptoms and signs of the disease. The pathophysiology of the disease is caused by the decreased level of the glutamic acid decarboxylase (GAD) activity due to an autoantibody against GAD that decreases the level of gamma-aminobutyric acid (GABA). In this paper, we present a case of atypical presentation of SPS with lower limb stiffness misdiagnosed as conversion disorder...
2017: Caspian Journal of Internal Medicine
Dominique Endres, Magnus S Vry, Petra Dykierek, Anne N Riering, Eva Lüngen, Oliver Stich, Rick Dersch, Nils Venhoff, Daniel Erny, Irina Mader, Philipp T Meyer, Ludger Tebartz van Elst
Background: Hashimoto's encephalopathy (HE) is a rare immunological neuropsychiatric disorder characterized by increased antithyroid antibodies and mixed neurological and psychiatric symptoms. HE has been previously discussed as a differential diagnosis for rapid progressive dementia. However, most of these patients suffered from additional neurological symptoms, like ataxia or seizures. Case presentation: Here, we present the case of a 59-year-old female patient suffering rapid onset dementia with salient frontal executive dysfunction...
2017: Frontiers in Psychiatry
Gagandeep Kaur, C M Kuldeep, Puneet Bhargava, Deepak Kumar Mathur, Sonam Sharda, Pulkit Chaturvedi
Background: Alopecia areata (AA) is a common, recurrent form of nonscarring alopecia which often presents as circumscribed patches of spontaneous hair loss. The global prevalence of this disease varies from 0.1% to 0.2% in general population and 7-30 cases per 1000 dermatological patients. The etiology of AA still remains uncertain; however, genetic or environmental factor and autoimmunity are claimed responsible for it. Various autoimmune diseases, such as Hashimoto's thyroiditis, diabetes mellitus, vitiligo, and lupus erythematosus, have been reported in association with AA...
October 2017: International Journal of Trichology
Ruiguo Zhang, Guizhi Zhang, Renfei Wang, Jian Tan, Yajing He, Zhaowei Meng
Purpose: Calculation of effective thyroidal half-life (Teff) of iodine-131((131)I) is cumbersome and tedious. The aim of this study was to investigate factors that could be used to predict Teff and to develop a Teff prediction model in Graves' disease patients. Methods: A total of 256 patients with GD were involved in this study. We investigated the influences of age, gender, disease duration, thyroid weight, antithyroid drugs, antithyroid drugs discontinuation period (ADP), thyroid function indexes, thyroid autoantibodies, thyroid-stimulating hormone receptor antibody (TRAb) level and radioactive iodine uptake (RAIU) values before (131)I therapy on Teff, applying univariate and multivariate analyses...
October 6, 2017: Oncotarget
Aimee Seungdamrong, Anne Z Steiner, Clarisa R Gracia, Richard S Legro, Michael P Diamond, Christos Coutifaris, William D Schlaff, Peter Casson, Gregory M Christman, Randal D Robinson, Hao Huang, Ruben Alvero, Karl R Hansen, Susan Jin, Esther Eisenberg, Heping Zhang, Nanette Santoro
OBJECTIVE: To study whether preconceptual thyroid-stimulating hormone (TSH) and antithyroid peroxidase (TPO) antibodies are associated with poor reproductive outcomes in infertile women. DESIGN: Secondary analysis of data from two multicenter, randomized, controlled trials conducted by the Reproductive Medicine Network of the Eunice Kennedy Shriver National Institute of Child Health and Human Development. Multivariable logistic regression analyses were performed to assess the association between preconceptual TSH levels and anti-TPO antibodies...
October 25, 2017: Fertility and Sterility
Tiffany Y Lin, Ning Li, Michael W Yeh, Angela M Leung, Daniel B Rootman
OBJECTIVE: Thyroid eye disease (TED), an autoimmune inflammatory process involving the orbital tissues around the eye, is the most common extra-thyroidal manifestation of Graves' disease (GD). Due to changes in the patient's appearance, TED is a socially and visually disabling condition with significant impacts on quality of life. The aim of this study is to assess predictors of strabismus, a severe manifestation of TED. DESIGN: Single-institution retrospective case-control study...
September 2017: Journal of Clinical & Translational Endocrinology
Poupak Fallahi, Ilaria Ruffilli, Dilia Giuggioli, Michele Colaci, Silvia Martina Ferrari, Alessandro Antonelli, Clodoveo Ferri
We have reviewed scientific literature about the association of systemic sclerosis (SSc) and thyroid disorders. A high incidence, and prevalence, of new cases of autoimmune thyroiditis (AT) and/or hypothyroidism have been shown in sclerodermic patients (overall in the female gender). An association among a Th1 immune-predominance, low vitamin D levels, and AT have been also shown in SSc patients. Cases of Graves' disease (GD) have been described in SSc patients, too, according with the higher prevalence of thyroid autoimmunity...
2017: Frontiers in Endocrinology
Hekma Saad Farghaly, Kotb Abbass Metwalley, Faisal-Alkhateeb Ahmed, Duaa Mohamed Raafat, Osama El-Asheer, Ahmed Mahmood Ali, Ahlam Bahdawy, Asmaa Mohamed Zahran
BACKGROUND: This study aims to assess the levels of visfatin in children and adolescents with autoimmune thyroiditis (AIT) and its relationship with disease-related variables. METHODS: The study included 84 children and adolescents with AIT and 84 healthy subjects. Measurements of fasting glucose, insulin, thyroid-stimulating hormone (TSH), free thyroxin (FT4), antithyroid peroxidase antibodies (TPOAb) and antithyroglobulin antibody (TgAb) were completed, with assessment of visfatin levels...
August 2017: Therapeutic Advances in Endocrinology and Metabolism
Manish Gutch, Annesh Bhattacharjee, Sukriti Kumar, Durgesh Pushkar
Hashimoto's encephalitis is a rare, heterogeneous and completely treatable form of neuroendocrine disorder manifesting with seizures, stroke-like episodes, encephalopathy, dementia and variable neuropsychiatric manifestations. It is generally associated with a background of Hashimoto's Thyroiditis, and the patient has high titers of antithyroid antibodies, especially antithyroid peroxidase antibodies. This entity responds dramatically to corticosteroids, hence should be always considered and excluded while treating a patient with encephalopathy in the background of a thyroid disease...
July 2017: International Journal of Applied and Basic Medical Research
Catherine C Lerro, Laura E Beane Freeman, Curt T DellaValle, Muhammad G Kibriya, Briseis Aschebrook-Kilfoy, Farzana Jasmine, Stella Koutros, Christine G Parks, Dale P Sandler, Michael C R Alavanja, Jonathan N Hofmann, Mary H Ward
OBJECTIVES: Animal studies suggest that exposure to pesticides may alter thyroid function; however, few epidemiologic studies have examined this association. We evaluated the relationship between individual pesticides and thyroid function in 679 men enrolled in a substudy of the Agricultural Health Study, a cohort of licensed pesticide applicators. METHODS: Self-reported lifetime pesticide use was obtained at cohort enrolment (1993-1997). Intensity-weighted lifetime days were computed for 33 pesticides, which adjusts cumulative days of pesticide use for factors that modify exposure (eg, use of personal protective equipment)...
August 3, 2017: Occupational and Environmental Medicine
Ilaria Ruffilli, Francesca Ragusa, Salvatore Benvenga, Roberto Vita, Alessandro Antonelli, Poupak Fallahi, Silvia Martina Ferrari
Psoriasis (PsO) is a chronic relapsing/remitting autoimmune skin disease, associated with an increased risk of other autoimmune disorders. Psoriatic arthritis (PsA) is a chronic inflammatory arthritis occurring approximately in 30% of PsO patients. Sporadic cases of association between PsO and autoimmune thyroid disorders (AITDs) have been reported. However, two different recent studies did not find any association between them. In patients with PsO and PsA, an association with AITD has been shown by most of the studies in adults, but not in the juvenile form...
2017: Frontiers in Endocrinology
Silvia Martina Ferrari, Giusy Elia, Camilla Virili, Marco Centanni, Alessandro Antonelli, Poupak Fallahi
Most of the studies present in the literature show a high prevalence, and incidence, of new cases of hypothyroidism and autoimmune thyroiditis (AT) in systemic lupus erythematosus (SLE) patients, overall in female gender. A limited number of cases of Graves' disease have been also reported in SLE patients, in agreement with the higher prevalence of thyroid autoimmunity. It has been also demonstrated that a Th1 predominance is associated with AT in SLE patients. Furthermore, a higher prevalence of papillary thyroid cancer has been recently reported in SLE, in particular in the presence of thyroid autoimmunity...
2017: Frontiers in Endocrinology
Chengqun Ju, Linna Zhang
BACKGROUND: A case report of Hashimoto's thyroiditis-associated ophthalmopathy that masqueraded as double elevator palsy in 1 eye. CASE PRESENTATION: A 54-year-old woman presented to our strabismus clinic with diplopia for 1 year. She was diagnosed with double elevator palsy in the left eye. The forced duction test yielded positive findings for the inferior rectus of the left eye; hence, computed tomography of the orbit and thyroid-associated blood tests were performed; surprisingly, the thyroid function test results were consistent with hypothyroidism and the antibody results such as antithyroglobulin and antithyroid peroxidase were markedly elevated, and the patient was diagnosed with Hashimoto's thyroiditis and treated with corticosteroids...
June 2017: Medicine (Baltimore)
Harsh V Sirohi, Prashant K Singh, Naseer Iqbal, Pradeep Sharma, Amit K Singh, Punit Kaur, Sujata Sharma, Tej P Singh
Lactoperoxidase (LPO) belongs to mammalian heme peroxidase superfamily, which also includes myeloperoxidase (MPO), eosinophil peroxidase (EPO), and thyroid peroxidase (TPO). LPO catalyzes the oxidation of a number of substrates including thiocyanate while TPO catalyzes the biosynthesis of thyroid hormones. LPO is also been shown to catalyze the biosynthesis of thyroid hormones indicating similar functional and structural properties. The binding studies showed that 2-mercaptoimidazole (MZY) bound to LPO with a dissociation constant of 0...
October 2017: Proteins
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