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1.
Rev. baiana saúde pública ; 45(Supl. Especial 2): 89-97, 2021/12/28.
Article in Portuguese | LILACS | ID: biblio-1352333

ABSTRACT

Alterações hematológicas, como anemia ou pancitopenia, podem ser manifestações atípicas do hipertireoidismo. Embora a maioria dos casos de pancitopenia na doença de Graves seja decorrente do uso de drogas antitireoidianas ­ tionamidas ­, ela também pode estar associada ao quadro de hipertireoidismo não tratado e, assim, se manifestar como uma complicação grave. Este estudo tem como objetivo relatar o caso de uma paciente portadora de hipertireoidismo que evoluiu durante o internamento por pancitopenia secundária à doença primária. As informações foram obtidas por meio da revisão do prontuário, entrevista com a paciente e revisão da literatura. Trata-se de uma paciente do sexo feminino, de 39 anos, internada em um hospital de Salvador por apresentar um quadro de edema em membros inferiores que evoluiu progressivamente para anasarca por 45 dias. Associados ao quadro, a paciente apresentava perda ponderal, dispneia paroxística noturna, taquicardia, sudorese e calafrios, além dos exames laboratoriais terem apresentado pancitopenia. O caso relatado demonstra uma manifestação atípica e rara do hipertireoidismo, que melhorou após o início do tratamento e do estado de eutireoidismo.


Hematological changes such as anemia or pancytopenia can occur as atypical manifestations of hyperthyroidism. Although most cases of pancytopenia in Graves' disease are due to the use of antithyroid drugs (thionamides), it can also be associated with untreated hyperthyroidism, thus manifesting as a serious complication. This study aims to report the case of a 39-year-old hyperthyroid female patient who developed pancytopenia during hospitalization. Data were collected by means of the medical record, an interview conducted with the patient, and literature review. The patient was admitted to a hospital in Salvador presenting lower extremity edema that progressively evolved to anasarca within 45 days prior to the interview. She also presented weight loss, paroxysmal nocturnal dyspnea, tachycardia, sweating, chills, and laboratory test results for pancytopenia. The case reported here demonstrates an atypical and rare manifestation of hyperthyroidism that improved after the beginning of the treatment, reaching the euthyroid state.


Los cambios hematológicos como anemia o pancitopenia pueden ocurrir como manifestaciones atípicas de hipertiroidismo. Aunque la mayoría de los casos de pancitopenia en la enfermedad de Graves se deben al uso de fármacos antitiroideos (tionamidas), también se puede asociar a um hipertiroidismo no tratado y, por tanto, puede manifestarse como una complicación grave. Este estudio tiene como objetivo reportar el caso de una paciente con hipertiroidismo que desarrolló durante la hospitalización pancitopenia secundaria a la enfermedad primaria. La información se obtuvo revisando la historia clínica, entrevistando a la paciente y revisando la literatura. Se trata de una paciente de 39 años ingresada en un hospital de Salvador por presentar edema en miembros inferiores, evolucionando progresivamente a anasarca durante 45 días. Asociado a la afección, presentaba pérdida de peso, disnea paroxística nocturna, taquicardia, sudoración, escalofríos y análisis de laboratorio que mostraban pancitopenia. El caso aquí reportado demuestra una manifestación atípica y rara de hipertiroidismo, que evolucionó luego del inicio del tratamiento y del estado de eutiroidismo.


Subject(s)
Humans , Female , Pancytopenia , Bone Marrow , Hyperthyroidism
2.
Article in Portuguese | LILACS | ID: biblio-1353031

ABSTRACT

.Introdução: O hipertireoidismo decorre da elevação sérica dos hormônios tireoidianos, secundária à hiperfunção da glândula tireoide, sendo as principais causas a Doença de Graves (DG) e os Bócios Nodulares Tóxicos (BNT). Objetivos: Avaliar o perfil clínico e modalidades terapêuticas aplicadas em pacientes com diagnóstico de hipertireoidismo acompanhados em um Hospital Universitário no Sul do Brasil. Métodos: Estudo observacional, transversal e descritivo, com inclusão de pacientes com diagnóstico de hipertireoidismo por DG e BNT; foram coletados dados epidemiológicos, clínicos, laboratoriais e de tratamento. Resultados: A maioria dos pacientes foi referenciada pela atenção primária e encontrava-se em uso prévio de droga antitireoidiana (DAT). A variável idade obteve diferença estatisticamente significativa entre as etiologias de DG e BNT; em ambas houve predomínio de incidência no sexo feminino. A DG apresentou maior frequência de sinais e sintomas de tireotoxicose, ao passo que o BNT mostrou mais sinais e sintomas de compressão. Houve remissão da doença em 23,2% dos pacientes com DG tratados com DAT; em 23,2% dos pacientes optou-se pela manutenção de metimazol em baixa dose por mais de 36 meses e em 16,1% foi realizado tratamento definitivo. No BNT foram preferidas terapias definitivas, principalmente a tireoidectomia, em 27,5% dos pacientes. Doses baixas de metimazol por mais de 36 meses foram utilizados também no BNT, em 22,5% dos pacientes. Conclusão: O hipertireoidismo é uma doença heterogênea, desde a clínica inicial até a terapêutica, entre suas etiologias mais prevalentes. Observou-se uma tendência de priorizar as terapias medicamentosas em longo prazo com baixas doses, tanto na DG quanto no BNT. (AU)


Perfil clínico e terapêutico dos pacientes com hipertireoidismo do ambulatório de endocrinologia de um hospital universitário do sul do BrasilClinical and therapeutic profile of patients with hyperthyroidism in an outpatient endocrine clinic at a university hospital in southern Brazil ARTIGO ORIGINALRafael Antonio Parabocz1, Renata Soares Carvalho1, Gianna Carla Alberti Schrut1, Ana Claudia Garabeli Cavalli Kluthcovsky1, Matheo Augusto Morandi Stumpf1Introduction: Hyperthyroidism results from the serum elevation of thyroid hormones, secondary to hyperfunction of the thyroid gland. The main causes are Graves' disease (DG) and Toxic Nodular Goiters (BNT). Objectives: Evaluate the clinical profile and therapeutic modalities applied in patients diagnosed with hyperthyroidism followed up at a University Hospital in Southern Brazil. Methods: Observational, cross-sectional and descriptive study, including patients diagnosed with hyperthyroidism by DG and BNT; epidemiological, clinical, laboratory and treatment data were collected. Results: Most patients were referred by primary care and had been using antithyroid drugs (DAT). The age variable obtained showed a statistically significant difference between the etiologies of DG and BNT; in both, there was a predominance of incidence in females. DG showed a higher frequency of signs and symptoms of thyrotoxicosis, while BNT showed more signs and symptoms of compression. There was remission of the disease in 23.2% of patients with DG treated with DAT; in 23.2% of the patients, low-dose methimazole was maintained for more than 36 months and in 16.1%, definitive treatment was performed. In BNT, definitive therapies were preferred, mainly thyroidectomy, in 27.5% of patients. Low doses of methimazole for more than 36 months were also used in BNT in 22.5% of patients. Conclusion: Hyperthyroidism is a heterogeneous disease, from initial clinic to therapy, among its most prevalent etiologies. There was a tendency to prioritize long-term drug therapies with low doses, both in DG and BNT. (AU)


Subject(s)
Humans , Male , Female , Primary Health Care , Thyroidectomy , Thyrotoxicosis , Graves Disease , Morbidity , Goiter, Nodular , Hospitals, University , Hyperthyroidism
3.
Rev. colomb. cir ; 36(4): 682-695, 20210000. fig, tab
Article in Spanish | LILACS | ID: biblio-1291253

ABSTRACT

La coexistencia entre cáncer de tiroides e hipertiroidismo es infrecuente, y la mayoría de las lesiones nodulares a partir de las cuales se documenta un tumor maligno en este grupo de pacientes corresponden a nódulos fríos. Justificado en el creciente número de reportes en la literatura acerca de tumores malignos diagnosticados a partir de nódulos calientes, se realizó una revisión sistemática que tuvo como objetivo determinar los posibles factores asociados con el diagnóstico de cáncer de tiroides a partir de nódulos calientes en pacientes con hipertiroidismo. Los resultados sugieren que el diagnóstico clínico de bocio nodular tóxico, lesiones nodulares de diámetro mayor de 10 mm y tipo histológico compatible con carcinoma folicular, son factores que aumentan por sí solos el riesgo de realizar el diagnóstico de cáncer a partir de un nódulo caliente


Coexistence between thyroid cancer and hyperthyroidism is rare, and most of the nodular lesions from which a malignant tumor is documented in this group of patients correspond to cold nodules. Justified by the increasing number of reports in the literature about malignant tumors diagnosed from hot nodules, a systematic review was carried out to determine possible factors associated with the diagnosis of thyroid cancer from hot nodules in pa-tients with hyperthyroidism. The results suggest that the clinical diagnosis of toxic nodular goiter, nodular lesions of diameter > 10 mm and a histological type compatible with a follicular carcinoma, are factors that on their own increase the risk of making the diagnosis of cancer from a hot nodule


Subject(s)
Humans , Thyroid Neoplasms , Hyperthyroidism , Thyroid Gland , Thyroid Nodule , Adenocarcinoma, Follicular , Systematic Review
4.
Arch. argent. pediatr ; 119(1): S1-S7, feb. 2021. tab
Article in Spanish | LILACS, BINACIS | ID: biblio-1147352

ABSTRACT

El hipertiroidismo es el cuadro clínico resultante del exceso de hormonas tiroideas debido a hiperfunción glandular. Es una enfermedad rara en niños y adolescentes, pero con una alta morbilidad. La causa más frecuente es la enfermedad de Graves. El objetivo de esta publicación es realizar una revisión y actualización del hipertiroidismo infantojuvenil para guiar su detección y derivación temprana al endocrinólogo pediatra. Debe ser considerado cuando el niño o adolescente presente síntomas asociados a esta patología y bocio de grado variable. Se confirma con el perfil bioquímico característico.El tratamiento consiste, inicialmente, en bloquear los efectos del exceso de hormonas tiroideas con betabloqueantes y, además, disminuir su producción con drogas antitiroideas como primera elección. Ante efectos secundarios a su administración, recidivas o ausencia de remisión de la enfermedad, se optará por el tratamiento definitivo: yodo radioactivo o cirugía con el objetivo de lograr el hipotiroidismo o eutiroidismo


Hyperthyroidism is a serious and rare disorder in childhood characterized by the overproduction of thyroid hormones by the thyroid gland. Graves disease is the most common cause. The objective of this paper is to review and update hyperthyroidism in children and adolescents aiming to guide its early detection and referral to the pediatric endocrinologist. The disease should be suspected if typical symptoms and goiter are present and has to be confirmed with the characteristic biochemical profile. Initially, treatment to block the effect of the thyroid excess is needed. Antithyroid drugs are the recommended first-line treatment to diminish hormone production. Alternative treatments, such us radioactive iodine or thyroidectomy, are considered in cases of adverse effects to drugs, relapse or non-remission of the disease, in order to achieve hypothyroidism or euthyroidism.


Subject(s)
Humans , Male , Female , Child , Adolescent , Hyperthyroidism/diagnosis , Hyperthyroidism/drug therapy , Antithyroid Agents/therapeutic use , Graves Disease , Hyperthyroidism/etiology , Hyperthyroidism/therapy , Iodine/therapeutic use
5.
Rev. chil. endocrinol. diabetes ; 14(1): 14-16, 2021. tab
Article in Spanish | LILACS | ID: biblio-1146466

ABSTRACT

La enfermedad trofoblástica gestacional (ETG) es una complicación del embarazo poco común. Corresponde a un espectro de lesiones proliferativas del tejido trofoblástico: Mola Hidatiforme (MH) en sus formas parcial y completa, Coriocarcinoma, Tumor Trofoblástico y Tumor Trofoblástico Epiteloide. Los distintos tipos de ETG presentan en común la hipersecreción de gonadotrofina coriónica humana (hCG). La hCG es una hormona glicoproteica con una estructura muy similar a la TSH, por lo cual puede estimular la función tiroidea en condiciones fisiológicas y en algunas condiciones patológicas. La ETG puede cursar con hipertiroidismo, el cual puede variar en intensidad, desde una presentación asintomática con alteración leve de hormonas tiroideas a un cuadro de hipertiroidismo manifiesto. Se presentan 3 casos clínicos de pacientes con ETG, específicamente MH que evolucionaron con tirotoxicosis transitoria. Los casos presentaron un cuadro leve de hipertiroidismo con pocos síntomas asociados. La taquicardia fue el único síntoma en la mayoría de los casos. En todas las pacientes las hormonas tiroideas se normalizaron después del tratamiento de la ETG. Conclusión: Se debe tener presente la posibilidad de hipertiroidismo en toda paciente con ETG. Un alto nivel de sospecha permitirá identificar a aquellas pacientes que cursen con hipertiroidismo, permitiendo así un diagnóstico y tratamiento oportuno.


Gestational trophoblastic disease (GTD) is a rare complication of pregnancy. GTD includes a group of proliferative lesions of trophoblastic tissue: partial and complete hydatidiform mole, choriocarcinoma, epithelioid trophoblastic tumor, and placental site trophoblastic tumor. The different types of GTD have in common the hypersecretion of human chorionic gonadotropin (hCG). HCG is a glycoprotein hormone with a similar structure to TSH. In physiological and pathological conditions hCG can stimulate thyroid function. GTD can present with hyperthyroidism, which can vary in intensity, from an asymptomatic presentation with mild alteration of thyroid hormones to a manifest hyperthyroidism. We present 3 clinical cases of patients with GTD thyrotoxicosis. All cases presented mild hyperthyroidism. Tachycardia was the only symptom in most cases. In all patients thyroid hormones return to normal after treatment of GTD. Conclusion: In patients with GTD the possibility of hyperthyroidism should be kept in mind. A high level of suspicion will allow to identifying patients with hyperthyroidism.


Subject(s)
Humans , Female , Pregnancy , Adolescent , Adult , Young Adult , Gestational Trophoblastic Disease/complications , Gestational Trophoblastic Disease/diagnosis , Hyperthyroidism/etiology , Propranolol/therapeutic use , Tachycardia , Thyrotoxicosis/etiology , Hydatidiform Mole , Methotrexate/therapeutic use , Gestational Trophoblastic Disease/drug therapy
6.
Rev. méd. Minas Gerais ; 31: 31411, 2021.
Article in Portuguese | LILACS | ID: biblio-1291393

ABSTRACT

A paralisia periódica hipocalêmica tireotóxica é uma complicação rara do hipertireoidismo. Caracteriza-se por episódios de fraqueza muscular recorrente, associado à tireotoxicose e hipocalemia. Ocorre frequentemente em pacientes do sexo masculino e de origem asiática. Nesse contexto, o objetivo deste estudo é descrever o relato de caso de um paciente acometido por paralisia periódica hipocalêmica tireotóxica com redução acentuada da qualidade de vida e internações recorrentes devido a quadro agudo de tetraparesia flácida ascendente associado a hipocalemia grave por não adesão ao tratamento do hipertireoidismo. A paralisia periódica hipocalêmica tireotóxica apresenta evolução favorável quando reconhecida e tratada com controle inicial dos sintomas para normalização sérica do potássio e posterior resolução do quadro tireotóxico.


Thyrotoxic hypokalemic periodic paralysis is a rare complication of hyperthyroidism. The issue has been characterized by episodes of recurrent muscle weakness associated with thyrotoxicosis and hypokalemia. It occurs most often in male patients of Asian origin. This study aims on describing the case report of a patient affected by thyrotoxic hypokalemic periodic paralysis with intense reduction in life quality and recurrent hospitalizations due to ascending acute flaccid tetraparesis associated with severe hypokalemia due to non-adherence to treatment of hyperthyroidism. Thyrotoxic hypokalemic periodic paralysis presents a favorable evolution when identified and treated with initial symptom control for serum potassium normalization and subsequent resolution of the thyroid toxicity.


Subject(s)
Humans , Male , Adult , Thyrotoxicosis , Hypokalemic Periodic Paralysis , Potassium , Thyroid Gland , Muscle Weakness , Asian Continental Ancestry Group , Hyperthyroidism , Hypokalemia
7.
Rev. bras. anal. clin ; 52(3): 238-242, 20200930. tab, graf
Article in Portuguese | LILACS | ID: biblio-1255090

ABSTRACT

Objetivo: Caracterizar o perfil dos hormônios tireoidianos de mulheres com idade maior ou igual a 50 anos atendidas no Laboratório Municipal de Referência Regional de Serrinha (LMRRS) no ano de 2017. Métodos: Os resultados de T3, T4 livre e TSH foram coletados retrospectivamente através do sistema informatizado utilizado pelo laboratório para construção de uma base de dados, e analisados de acordo com valores de referência recomendados pela Sociedade Brasileira de Endocrinologia. Resultados: Foi encontrada uma prevalência moderada de disfunções tireoidianas, sendo 58,62% de casos de hipotireoidismo e 41,38% de hipertireoidismo. Houve também aumento dos níveis de TSH e T4 livre entre os 50 e 70 anos, sem alterações nos níveis de T3 total. Conclusão: Os resultados assemelham-se a estudos anteriores, envolvendo outras populações, com predomínio do hipotireoidismo subclínico entre mulheres na mesma faixa etária. No entanto, a tendência crescente dos níveis de T4 livre não reflete os achados prévios que associam o avanço da idade e redução da produção de estrogênios com a diminuição da função tireoidiana.


Objective: To characterize the thyroid hormone profile of women aged 50 years and older attended at the Laboratório Municipal de Referência Regional de Serrinha (LMRRS) in the year 2017. Methods: The results of T3, free T4 and TSH were retrospectively collected from the computerized system of laboratory for building a database, and analyzed according to the reference values recommended by the Brazilian Society of Endocrinology. Results: A moderate prevalence of thyroid dysfunction was found, with 58.62% of cases of hypothyroidism and 41.38% of hyperthyroidism. There was also an increase of TSH and free T4 levels between 50 and 70 years with no changes in total T3 levels. Conclusion: The results are similar to previous studies involving other populations, with a prevalence of subclinical hypothyroidism in women in the same age group. However, the increasing trend of free T4 levels does not reflect the previous findings that associate the advancement of age and reduction of estrogen production with the decrease of thyroid function.


Subject(s)
Humans , Female , Middle Aged , Aged , Aged, 80 and over , Thyroid Gland , Thyroid Hormones , Menopause , Hyperthyroidism , Hypothyroidism
8.
Rev. Assoc. Med. Bras. (1992) ; 66(8): 1057-1061, Aug. 2020. tab, graf
Article in English | LILACS, SES-SP | ID: biblio-1136332

ABSTRACT

SUMMARY OBJECTIVE This study aimed to investigate the effect of propylthiouracil treatment on adhesion molecules in patients with subclinical hyperthyroidism. METHODS In this study, a total of 168 patients diagnosed with subclinical hyperthyroidism were treated with propylthiouracil for one year. The levels of adhesion molecules, consisting of sICAM-1, sVCAM-1, and sE-Selectin, before and after the treatment were measured and compared. These results were compared with the levels of 148 healthy controls who received a placebo. RESULTS sICAM-1 levels were significantly higher in subclinical hyperthyroidism patients than in healthy controls (*pa=0.000). sICAM-1 levels were significantly decreased after the treatment (**pb=0.000). Despite this decrease in patients with subclinical hyperthyroidism, it did not decrease to the level of the control group. sVCAM-1 did not change before and after propylthiouracil treatment. The level of sE-selectin was similar to that of the pretreatment control group, but it did not have statistical significance, although it increased after the treatment (**pb=0.004). CONCLUSION The sICAM level was significantly higher than the pretreatment values and decreased after the propylthiouracil treatment. However, further studies are needed to reduce the risk of atherosclerosis and cancer in patients with subclinical hyperthyroidism.


RESUMO ANTECEDENTES O objetivo deste estudo foi investigar o efeito do tratamento com propiltiouracil nas moléculas de adesão em pacientes com hipertireoidismo subclínico. MÉTODOS Neste estudo, 168 pacientes diagnosticados com hipertireoidismo subclínico foram tratados com propiltiouracil por um ano. Os níveis de moléculas de adesão, especificamente sICAM-1, sVCAM-1 e sE-Selectina, antes e após o tratamento foram medidos e comparados. Esses resultados foram comparados com os níveis de 148 indivíduos saudáveis no grupo de controle que receberam um placebo. RESULTADOS Os níveis de sICAM-1 foram significativamente maiores em pacientes com hipertireoidismo subclínico do que nos controles saudáveis (*pa=0,000). Os níveis de sICAM-1 diminuíram significativamente após o tratamento (**pb=0,000). Apesar dessa diminuição em pacientes com hipertireoidismo subclínico, ela não diminuiu para o nível do grupo controle. O sVCAM-1 não se alterou antes e após o tratamento com propiltiouracil. O nível de sE-Selectina foi semelhante ao do grupo de controle pré-tratamento, mas não apresentou significância estatística, embora tenha aumentado após o tratamento (** pb = 0,004). CONCLUSÃO O nível de sICAM foi significativamente superior aos valores pré-tratamento e diminuiu após o tratamento com propilciliouracil. No entanto, mais estudos são necessários para reduzir o risco de aterosclerose e câncer em pacientes com hipertireoidismo subclínico.


Subject(s)
Humans , Propylthiouracil/therapeutic use , Hyperthyroidism/drug therapy , Intercellular Adhesion Molecule-1 , Vascular Cell Adhesion Molecule-1 , E-Selectin
9.
Rev. méd. Chile ; 148(6): 740-745, jun. 2020. tab
Article in English | LILACS | ID: biblio-1139366

ABSTRACT

ABSTRACT Background: Hypothyroidism occurs in 1-2% of the general population, is associated with significant morbidity and requires continuous treatment with levothyroxine. Aim: To determine the effectiveness, adherence and safety of levothyroxine therapy in patients with hypothyroidism. Material and Methods: The Morisky-Green adherence test was applied, and effectiveness was determined by measuring thyroid-stimulating hormone (TSH) in 330 patients with with hypothyroidism; the mean age was 64+-15 years and 76% was women. Results: Median TSH was 2.09 mIU/L (interquartile range: 1.16-3.61 mIU/L). Two hundred thirty-five (71%) patients had TSH levels in the euthyroid range, 64 (19%) in the hypothyroid range and 31 (9%) in the hyperthyroid range. Complete, moderate and lack of adherence with levothyroxine was reported in 283 (86%), 29 (9%) and 18 (5%) of patients, respectively. The presence of anemia (odds ratio (OR): 0.37, 95% confidence intervals (CI): 0.15-0.98) or the need of doses over 100 µg/day (OR: 0.47, 95%CI: 0.28-0.80) increased the probability of having an abnormal TSH level. Conclusions: In a large proportion of these patients, TSH levels were controlled, and most patients were adherent to levothyroxine therapy.


Antecedentes: El hipotiroidismo se presenta entre el 1-2% de la población general, genera importante morbilidad y requiere tratamiento con levotiroxina de manera continua. Objetivo: Determinar la efectividad, adherencia y seguridad de la terapia con levotiroxina en pacientes con hipotiroidismo. Material y Métodos: Se aplicó test de adherencia de Morisky-Green y se determinó efectividad mediante medición de TSH en 330 pacientes con edad promedio 63 ± 15 años (76% mujeres). Resultados: La mediana de TSH fue 2,09 mUI/l, (rango intercuartílico: 1,16mUI/l-3,61mUI/l). Un total de 235 (71,2%) tenían cifras de TSH en rango de estado eutiroideo, 64 (19,4%) se catalogaron hipotiroideos y 31 (9,4%) hipertiroideos. El 86% (n = 283) manifestó tener adherencia completa al medicamento, 29 (9%) moderada y 18 (5%) se clasificaron poco adherentes. Tener diagnóstico de anemia (razón de riesgo (RR): 0,37; intervalos de confianza (IC) 95%: 0,15-0,98) o necesitar dosis mayores de 100 µg/día (RR: 0,47; IC95%: 0,28-0,80) elevaron la probabilidad de no controlar el hipotiroidismo. Conclusiones. Una alta proporción de pacientes se encuentran controlados y con mucha frecuencia son adherentes a la terapia con levotiroxina.


Subject(s)
Humans , Female , Middle Aged , Aged , Thyroxine/therapeutic use , Hyperthyroidism , Hyperthyroidism/drug therapy , Thyrotropin , Prescriptions
10.
Rev. méd. Chile ; 148(5): 697-701, mayo 2020. tab, graf
Article in English | LILACS | ID: biblio-1139355

ABSTRACT

ABSTRACT Hyperthyroidism can induce elevation in several liver function tests including aminotransferases, alkaline phosphatases and, less frequently, serum bilirubin. These alterations are usually mild and asymptomatic. We report a 26 year-old male presenting with palpitations, progressive jaundice, choluria and generalized itching. Laboratory tests were compatible with hyperthyroidism and a mild elevation of bilirubin, alkaline phosphatases and gamma glutamyl transpeptidase. A liver biopsy showed portal hepatitis with canalicular cholestasis. The patient was treated temporarily with glucocorticoids, cholestyramine and betablockade. Thereafter, he was treated with radioactive iodine, after which serum bilirubin decreased steadily until normalization in ten weeks.


El hipertiroidismo puede producir elevación de aminotransferasas, fosfatasas alcalinas y, menos frecuentemente, de bilirrubina sérica. Habitualmente, estas alteraciones son leves y asintomáticas. Reportamos un hombre de 26 años con hipertiroidismo secundario a enfermedad de Basedow-Graves, que debutó con un cuadro colestásico, inicialmente estudiado por sospecha de patología hepática autoinmune que incluyó biopsia hepática. Posteriormente, se diagnosticó hipertiroidismo que fue tratado con glucocorticoides, colestiramina y beta bloqueo como puente a terapia definitiva con radioyodo. La evolución mostró disminución progresiva hasta la normalización de bilirrubina sérica.


Subject(s)
Humans , Male , Adult , Graves Disease/complications , Cholestasis/diagnosis , Cholestasis/etiology , Hyperthyroidism/complications
12.
Rev. otorrinolaringol. cir. cabeza cuello ; 80(1): 39-47, mar. 2020. tab, graf
Article in Spanish | LILACS | ID: biblio-1099200

ABSTRACT

INTRODUCCIÓN: En el tratamiento del hipertiroidismo se recurre a la cirugía en casos de bocio grande, fracaso del tratamiento médico o indicación social de tratamiento definitivo. OBJETIVO: Analizar los resultados en cuanto a función tiroidea del tratamiento del hipertiroidismo mediante tiroidectomía total (TT). MATERIAL Y MÉTODO: Estudio retrospectivo de 26 pacientes con hipertiroidismo, intervenidos en el Hospital de la Plana durante 2015-2018, con seguimiento de 36 meses. Tras estudio estadístico descriptivo e inferencial, se analizó la probabilidad de recidiva del hipertiroidismo mediante el método de Kaplan-Meier, y se utilizó el modelo de Cox para ajustar los efectos sobre la recidiva de las diferentes variables. RESULTADOS: El 73,1% tenían normofunción tiroidea; el 19,2%, hiperfunción, y en otro 7,7% existía hipofunción. El tiempo medio de supervivencia (normofunción) fue de 25,87 meses (IC: 17,52-34,21). En el estudio de supervivencia con el log-rank en función de la variable anatomía patológica y complicaciones, no hay diferencias estadísticamente significativas en la supervivencia de ambos grupos. DISCUSIÓN: Coincide con otros trabajos publicados. CONCLUSIÓN: La TT es un método efectivo de tratamiento para el hipertiroidismo, con baja incidencia de complicaciones. Sin embargo, no hemos encontrado ninguna variable que nos permita predecir el resultado.


INTRODUCTION: Surgery is used in the management of hyperthyroidism in cases of large goiter, failure of medical treatment or social indication of definitive treatment. AIM: To analyze the results of the treatment of hyperthyroidism by total thyroidectomy (TT) regarding to thyroid function. MATERIAL AND METHODS: Retrospective study of 26 patients with hyperthyroidism, operated on the Hospital de la Plana during 2015-2018, with a follow-up of 36 months. After a descriptive and inferential statistical study, the probability of recurrence of hyperthyroidism was analyzed using the Kaplan-Meier method, and the Cox model was used to adjust the effects on recurrence of the different variables. RESULTS: 73.1% had thyroid normofunction; in 19.2% there was hyperfunction, and in another 7.7% there was hypofunction. The average survival time (normofunction) was 25,87 months (CI: 17,52-34,21). In the study of survival with the log-rank depending on the pathological results and complications, there are no statistically significant differences in the survival of both groups. DISCUSSION: This coincides with other published works. CONCLUSION: TT is an effective method of treatment for hyperthyroidism, with a low incidence of complications. However, we have not found any variable that allows us to predict the result.


Subject(s)
Humans , Male , Female , Thyroidectomy/methods , Hyperthyroidism/surgery , Survival Analysis , Graves Disease , Multivariate Analysis , Retrospective Studies , Follow-Up Studies , Treatment Outcome , Hyperthyroidism/physiopathology
13.
Actual. SIDA. infectol ; 28(104): 123-126, 2020 dic.
Article in Spanish | LILACS, BINACIS | ID: biblio-1349139

ABSTRACT

La epidemia por COVID-19, causada por el nuevo coronavirus-2 del síndrome respiratorio agudo severo (SARS-CoV-2) ha enfrentado al equipo de salud a un abanico de presentaciones clínicas y alteraciones de las funciones órganicas a las que diagnosticar y tratar. Dentro de estas se encuentra la disfunción tiroidea.En este reporte se presenta el caso de una paciente con taquicardia persistente luego de pasado el cuadro de COVID-19, que derivó en múltiples consultas hasta que se arribó al diagnóstico de tirotoxicosis de etiología autoinmune.La tirotoxicosis asociada a COVID-19 es infrecuente, pero agrega morbilidad a la convalecencia de los pacientes, por lo que su sospecha clínica y diagnóstico rápido serían beneficiosos


The infection by the new severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has challenged the health care system with a new spectrum of clinical manifestations and organ disfuntions, that require proper diagnosis and treatment.In this case we report a patient with persistent tachycardia after COVID-19 acute illness. This finding led to multiple medical visits until final diagnosis of thyrotoxicosis of autoimmune etiology.Thyrotoxicosis is an unusual complication of COVID-19, that results in higher morbility in patients during the convalescent phase of the disease. Opportune clinical suspicion and early diagnosis seems to be beneficial in terms of clinical outcome


Subject(s)
Humans , Female , Adult , Thyroid Diseases/diagnosis , Thyroid Diseases/drug therapy , Thyrotoxicosis/diagnosis , Morbidity , Early Diagnosis , COVID-19 , Hyperthyroidism/immunology
14.
Rev. chil. endocrinol. diabetes ; 13(4): 166-169, 2020. tab
Article in Spanish | LILACS | ID: biblio-1123623

ABSTRACT

Introducción: En Chile en las últimas décadas ha aumentado la población de personas mayores de 65 años. La tirotoxicosis en este grupo está asociada a complicaciones como fibrilación auricular (FA), insuficiencia cardiaca (ICC), osteoporosis y aumento de la mortalidad. En algunos casos puede presentarse con síntomas no específicos, cuadro conocido como hipertiroidismo apático. Objetivos: Evaluar las características clínicas de la tirotoxicosis en personas mayores. Método: Serie de casos retrospectiva. Se analizaron fichas clínicas de pacientes mayores de 65 años con el diagnóstico de tirotoxicosis controlados en nuestro centro entre enero de 2012 y mayo de 2018. Resultados: En el periodo estudiado 54 pacientes fueron diagnosticados de tirotoxicosis. Se excluyen 4 por datos incompletos. El 80% corresponden a mujeres. La mediana de edad fue 71 años (rango 65-94), sin diferencias por género (p=0,61). La etiología más frecuente fue enfermedad de Graves (EG) en 64%, seguido por bocio multinodular hiperfuncionante en 20%, adenoma tóxico en 10% y asociada a fármacos en 6%. De los pacientes con EG, 28% presentó orbitopatía distiroidea (OD) clínicamente evidente. Un 30% se diagnosticó en contexto de baja de peso, deterioro cognitivo o patología cardiovascular, sin presentar síntomas clásicos de hipertiroidismo. Un 16% presentó FA, 14% ICC y 6% fractura osteoporótica. El 28% fue diagnosticado durante una hospitalización o requirió ser hospitalizado durante los meses siguientes. Los mayores de 75 años presentan una mayor probabilidad de hipertiroidismo apático (OR 5,1, IC95% 1,15-22,7 p=0,01). Además, las complicaciones aumentan en mayores de 75 años, encontrándose en este grupo todos los casos de FA. Conclusiones: La etiología más común de tirotoxicosis fue la EG, a diferencia de lo reportado en otras poblaciones. Un número importante de pacientes debutó sin síntomas clásicos de hipertiroidismo, principalmente mayores de 75 años, por lo que se debe tener una alta sospecha en este grupo etario.


Introduction: Hyperthyroidism in the elderly can produce severe complications such as atrial fibrillation (AF), heart failure (CHF) and osteoporosis. In the elderly, thyrotoxicosis may have only nonspecific symptoms, known as apathetic hyperthyroidism. Objective: To evaluate the clinical characteristics of thyrotoxicosis in the elderly. Methods: Retrospective case series. We reviewed clinical records of patients with thyrotoxicosis older than 65 years, between January 2012 and March 2019. Results: During this period, 54 patients were diagnosed with thyrotoxicosis. Four patients were excluded due to incomplete data. 80% were women. The average age was 73 years (range 65-94), without age difference between gender (p=0,61). The most frequent etiology was Graves' disease in 64%. Hyperfunctioning multinodular goiter was confirmed in 20%, toxic adenoma in 10% and drug-associated in 6%. Twenty eight percent of Graves' disease patients had dysthyroid orbitopathy. Thirty percent presented as apathetic hyperthyroidism. Sixteen percent of the patients presented AF, 14% CHF, and 6% osteoporotic fracture. Twenty-eight percent were diagnosed during hospitalization or required hospitalization in the following months. Those older than 75 years had a greater probability of presenting apathetic hyperthyroidism (OR 5.1, 95% CI 1.15- 22.7 p=0.01). Complications increase in this age group, with all cases of AF. Conclusions: The most common etiology of thyrotoxicosis in this group was GD. This differs from other populations. A significant number of patients presented without classic symptoms of hyperthyroidism, especially in people older than 75 years. Special attention should be paid to atypical symptoms of hyperthyroidism in this group.


Subject(s)
Humans , Male , Female , Aged , Aged, 80 and over , Thyrotoxicosis/epidemiology , Thyrotoxicosis/complications , Thyrotoxicosis/diagnosis , Thyrotoxicosis/etiology , Adenoma , Graves Disease , Retrospective Studies , Age Factors , Age Distribution , Hospitals, University/statistics & numerical data , Hyperthyroidism/epidemiology
15.
Article in English | WPRIM | ID: wpr-816634

ABSTRACT

In 2017, the first Korean nationwide data on serum thyroid stimulating hormone (TSH) levels, serum free thyroxine (fT4) levels, and urinary iodine concentration (UIC) were published based on a population of 7,061 Koreans who participated in the Korea National Health and Nutrition Examination Survey VI. The mean TSH level was 2.16 mIU/L, with a reference interval of 0.59 to 7.03 mIU/L (men 2.09 mIU/L, women 2.24 mIU/L, P<0.001). A U-shaped association was found between serum TSH levels and age. The mean fT4 level was 1.25 ng/dL, and its reference interval was 0.92 to 1.60 ng/dL (men 1.29 ng/dL, women 1.20 ng/dL, P<0.0001). Serum fT4 levels decreased with age (P for trend <0.0001). Serum thyroid peroxidase antibody (TPOAb) was detected in 7.30% of participants (men 4.33%, women 10.62%). TPOAb titers tended to increase with age, and were higher in women than in men. The median UIC was 294 µg/L, and UIC showed a U-shaped relationship with age. According to the World Health Organization recommendations, only 23% of participants were in the adequate range of iodine intake, while 65% were in the above requirements or excessive, and 12% in insufficient. The prevalence of overt hyperthyroidism and hypothyroidism in Koreans was 0.34% to 0.54% and 0.73% to 1.43%, respectively.


Subject(s)
Female , Humans , Hyperthyroidism , Hypothyroidism , Iodide Peroxidase , Iodine , Korea , Male , Nutrition Surveys , Prevalence , Thyroid Gland , Thyrotropin , Thyroxine , World Health Organization
16.
Cambios rev. méd ; 18(2): 13-17, 2019/12/27. tabs.
Article in Spanish | LILACS | ID: biblio-1097601

ABSTRACT

INTRODUCCIÓN. El hipotiroidismo e hipertiroidismo, constituyen patologías tiroideas, que si no reciben tratamiento apropiado llegan a provocar alteraciones sistémicas, siendo una de las principales las cardiovasculares. OBJETIVO. Conocer la influencia que tiene el hipotiroidismo e hipertiroidismo como factores de riesgo para el desarrollo de enfermedad cardiovascular. MATERIALES Y MÉTODOS. Estudio retrospectivo de enfoque cuantitati-vo; desarrollado en una población y muestra conocida de 111 pacientes, que acudieron al Servicio de Endocrinología del Hospital Manuel Ygnacio Monteros Valdivieso de la ciudad de Loja, atendidos en el año 2015. RESULTADOS. Predominó el sexo femenino, con un 20,72% (23; 69) en el grupo etario de 61 a 70 años de las pacientes hipotiroideas; y las de 51 a 60 años en 5,40% (6; 11) de las hipertiroideas. De acuerdo a los parámetros que pue-den condicionar mayor riesgo cardiovascular, el sobrepeso y obesidad presentaron una mayor frecuencia para hipotiroidismo en 67,70% (65; 111) e hipertiroidismo en un 66,67% (10; 111). El riesgo bajo cardiovascular prevaleció en 75,00% (72; 96) de la población hipo-tiroidea y 93,33% (14; 15) de la hipertiroidea. La hipertensión arterial fue la patología car-diovascular diagnosticada con mayor frecuencia sobre todo en los pacientes hipotiroideos representado por el 14,58% (14; 19). CONCLUSIÓN. Estas patologías, de no controlarse pudieran condicionar en la población de estudio un mayor riesgo cardiovascular.


INTRODUCTION. Hypothyroidism and hyperthyroidism, constitute thyroid pathologies, that if they do not received appropriate treatment, cause systematic alterations, treatment, cause systematic cardiovascular diseases being one of the main ones. OBJECTIVE. Know the influence of hypothyroidism and hyperthyroidism as risk factors for the development of cardiovascular disease. MATERIALS AND METHODS. Retrospective study of quantitative approach; developed in a population and known sample of 111 patients, who went to the Endocrinology Service of the Manuel Ygnacio Monteros Valdivieso Hospital in the city of Loja, attended in 2015. RESULTS. The female sex predominated, with 20,72% (23; 69) in the age group predominated 61 to 70 years of age in 5,40% (6; 11) of hyperthyroids. According to the parameters that may condition higher cardiovascular risk, overweight and obesity presented a higher frequency for hypothyroidism in 67,70% (65; 111) and hyperthyroidism in 66,67% (10; 111). Low cardiovascular risk prevailed in 75,00% (72; 96) of the hypothyroid population and 93,33% (14; 15) of the hyperthyroid population. Arterial hypertension was the most frequently diagnosed cardiovascular disease, especially in hypothyroid patients by 14,58% (14; 19). CONCLUSION. These pathologies, if not controlled, could condition a higher cardiovascular risk in the study population.


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Cardiovascular Diseases , Body Mass Index , Risk Factors , Essential Hypertension , Hyperthyroidism , Hypothyroidism , Thyroid Diseases , Hypertriglyceridemia , Overweight , Hypercholesterolemia , Obesity
17.
Medicina (B.Aires) ; 79(5): 419-423, oct. 2019. graf, tab
Article in Spanish | LILACS | ID: biblio-1056744

ABSTRACT

Se presenta el caso de una paciente que, durante los estudios por búsqueda de fertilidad y posterior embarazo, mostraba un perfil tiroideo alterado con niveles elevados de T4 libre y TSH normal. Luego de descartar un adenoma tirotropo y ante la ausencia de sintomatología clínica de hipertiroidismo, se investigó la posibilidad de interferencias analíticas en los inmunoensayos utilizados para la medición de las hormonas. Se han descrito interferencias causadas por anticuerpos heterófilos, macro TSH, anticuerpos anti-tiroideos, biotina, y en menor medida anticuerpos anti-estreptavidina y anti-rutenio. Los análisis de la paciente se realizaron en autoanalizador cuya plataforma emplea el sistema estreptavidina-biotina que es muy susceptible a varios interferentes. Un algoritmo propuesto incluye una serie de pruebas simples de realizar e interpretar que permiten detectar o descartar la presencia de interferentes. De acuerdo al mismo, se efectuó la comparación con una plataforma analítica diferente (que no utiliza el sistema estreptavidina-biotina), diluciones seriadas, precipitación con polietilenglicol 6000 y tratamiento con micropartículas recubiertas con estreptavidina. Los resultados obtenidos confirmaron la presencia de anticuerpos anti-estreptavidina en el suero de la paciente. Ante discordancias entre las manifestaciones clínicas y los resultados de laboratorio, se debe investigar la posibilidad de interferencias metodológicas para evitar el riesgo iatrogénico potencial que implica una interpretación bioquímica errónea.


We present the case of a patient who, during studies for fertility and subsequent pregnancy, showed an altered thyroid profile with elevated levels of free T4 and normal TSH. After ruling out a thyrotropic adenoma and in the absence of clinical symptoms of hyperthyroidism, the possibility of analytical interference in the immunoassays used to measure hormones was investigated. Interferences caused by heterophile antibodies, macro TSH, anti-thyroid antibodies, biotin, and to a lesser extent anti-streptavidin and anti-ruthenium antibodies have been described. The analysis of the patient was carried out in a self-analyzer whose platform uses the streptavidin-biotin system that is very susceptible to several interferents. A proposed algorithm includes a series of simple tests to perform and interpret that allow detecting or ruling out the presence of interferents. Accordingly, a comparison was made with a different analytical platform (which does not use the streptavidin-biotin system), serial dilutions, precipitation with polyethylene glycol 6000 and treatment with microparticles coated with streptavidin. Results obtained confirmed the presence of anti-streptavidin antibodies in the patient's serum. In the case of disagreements between clinical manifestations and laboratory results, the possibility of methodological interferences should be investigated in order to avoid the potential iatrogenic risk involved in an erroneous biochemical interpretation.


Subject(s)
Humans , Female , Pregnancy , Adult , Pituitary Neoplasms/diagnosis , Adenoma/diagnosis , Antibodies, Anti-Idiotypic/immunology , Streptavidin/immunology , Hyperthyroidism/diagnosis , Pituitary Neoplasms/immunology , Thyroxine/blood , Triiodothyronine/blood , Thyrotropin/blood , Adenoma/immunology , Diagnostic Errors , Hyperthyroidism/immunology
18.
Medicina (B.Aires) ; 79(5): 411-414, oct. 2019. ilus
Article in Spanish | LILACS | ID: biblio-1056742

ABSTRACT

El hipertiroidismo es una condición relativamente frecuente con múltiples etiologías. La más común es la enfermedad de Graves, seguida del bocio multinodular y el adenoma tóxico. La asociación entre hipertiroidismo y cáncer es infrecuente en la práctica clínica. Presentamos el caso de un varón de 42 años con síntomas de hipertiroidismo de dos meses de evolución. Al examen físico se constató una marcada hepatomegalia de consistencia duro pétrea. El examen de testículos se reveló normal. Se llevó a cabo el diagnóstico de hipertiroidismo a través del dosaje hormonal. Los estudios por imágenes mostraron la presencia de múltiples lesiones sólidas compatibles con metástasis hepáticas. Luego de descartar las causas habituales de hipertiroidismo y las neoplasias primarias de la glándula tiroides, se consideró la posibilidad de mimetismo molecular a través de la producción ectópica de gonadotrofina coriónica humana. Se obtuvieron valores críticamente elevados de esta hormona y en un segundo tiempo se confirmó el diagnóstico histológico de coriocarcinoma a través de una biopsia hepática. Consideramos que el reconocimiento de este mecanismo poco frecuente de hipertiroidismo, puede ser una clave diagnóstica para arribar rápidamente al diagnóstico correcto, particularmente en los tumores extragonadales.


Hyperthyroidism is a relatively frequent condition with multiple causes. The most common cause is Graves' disease; followed by hyperthyroid multinodular goiter and toxic adenoma. Association between hyperthyroidism and cancer is infrequent in daily practice. We present the case of a 42-year-old man who developed severe symptoms of hyperthyroidism within a period of two months. Physical examination revealed significant hepatomegaly. Testicular examination proved normal. Imaging studies showed the presence of multiple hepatic solid lesions consistent with metastases. After discarding the most common causes of hyperthyroidism and primary thyroid gland neoplasm, the possibility of molecular mimicry was considered through human chorionic gonadotrophin production. Critical high values of this hormone were found and choriocarcinoma histological diagnosis was confirmed through a liver biopsy. We consider that the recognition of this rare mechanism of hyperthyroidism may be a clue permitting a faster diagnosis, particularly when extragonadal tumors are present.


Subject(s)
Humans , Male , Adult , Choriocarcinoma, Non-gestational/complications , Hyperthyroidism/etiology , Brain Neoplasms/complications , Brain Neoplasms/pathology , Thyrotropin/blood , Tomography, X-Ray Computed , Fatal Outcome , Choriocarcinoma, Non-gestational/pathology , Chorionic Gonadotropin/blood , Hyperthyroidism/pathology , Liver Neoplasms/complications , Liver Neoplasms/pathology , Lung Neoplasms/complications , Lung Neoplasms/pathology
19.
Rev. chil. endocrinol. diabetes ; 12(3): 175-178, jul. 2019. ilus, tab
Article in Spanish | LILACS | ID: biblio-1006639

ABSTRACT

Los nódulos tiroideos suelen ser benignos en más del 95% de los casos y eutiroideos. La probabilidad de cáncer de tiroides en el hipertiroidismo es baja. Al enfrentarse a un nódulo tiroideo la importancia radica en excluir patología maligna, pero se debe mantener el orden en el algoritmo de estudio para evitar un diagnóstico incorrecto y caer en costos innecesarios. Se presenta el caso de una mujer de 23 años de edad con hipertiroidismo que en la ecografía aparece un nódulo tiroideo y adenopatía derecha, ambos con elementos sospechosos de malignidad, por lo que se pide punción de ambas estructuras, y se confirma el carcinoma papilar en el nódulo tiroideo, no así en la adenopatía. En el centellograma se observa un nódulo caliente que coincide con el nódulo maligno. Se realiza biopsia intraoperatoria de la adenopatía sospechosa y resulta ser una metástasis de carcinoma papilar. Se procedió a la tiroidectomía total con vaciamiento ganglionar central y lateral derecho. La anatomía patológica confirmó la presencia del carcinoma papilar clásico con metástasis de la adenopatía sospechosa. Posteriormente se administraron 130 mCi de radioyodo. Se debe considerar que los carcinomas pueden enmascararse ocasionalmente como nódulos «calientes¼ en el centellograma y en este caso, si bien en principio no estaría indicada la punción con aguja fina del nódulo dado que es hipercaptante en el centellograma, la ecografía demuestra elementos sospechosos contundentes de malignidad. En este caso el hilo conductor fue la ecografía y se rompió con el esquema clásico en la solicitud de estudios paraclínicos, obteniendo finalmente la confirmación diagnóstica de un cáncer y se realizó el tratamiento adecuado del mismo.


Thyroid nodules are usually benign in more than 95% of cases and euthyroid. The likelihood of thyroid cancer in hyperthyroidism is low. When dealing with a thyroid nodule the importance lies in excluding malignant pathology, but order must be maintained in the study algorithm to avoid an incorrect diagnosis and to fall into unnecessary costs. We present the case of a 23-year-old woman with hyperthyroidism who presented a thyroid nodule and right adenopathy on ultrasound, both with suspicious elements of malignancy, so puncture of both structures was requested, and papillary carcinoma was confirmed in the thyroid nodule, but not in adenopathy. In the scintigraphy a hot nodule is observed that coincides with the malignant nodule. Intraoperative biopsy of the suspected adenopathy is performed and it turns out to be a metastasis of papillary carcinoma. Total thyroidectomy was performed with central and right lateral lymph node dissection. The pathological anatomy confirmed the presence of classic papillary carcinoma with metastasis of the suspected adenopathy. Subsequently, 130 mCi of radioiodine was administered. It should be considered that carcinomas can occasionally be masked as «hot¼ nodules in the scintigraphy and in this case, although in principle the fine needle puncture of the nodule is not indicated given that it is hypercaptant in the scintigraphy, the ultrasound shows blunt suspicious elements of malignancy. In this case, the common thread was ultrasound and it was broken with the classic scheme in the request for paraclinical studies, finally obtaining the diagnostic confirmation of a cancer and the appropriate treatment was carried out.


Subject(s)
Humans , Female , Young Adult , Thyroid Neoplasms/diagnostic imaging , Carcinoma, Papillary/diagnostic imaging , Thyroid Nodule/diagnostic imaging , Thyroidectomy , Thyroid Neoplasms/surgery , Thyroid Neoplasms/pathology , Carcinoma, Papillary/surgery , Carcinoma, Papillary/pathology , Radionuclide Imaging , Ultrasonography , Thyroid Nodule/surgery , Thyroid Nodule/pathology , Sodium Pertechnetate Tc 99m , Hyperthyroidism
20.
Arch. endocrinol. metab. (Online) ; 63(3): 280-287, May-June 2019. tab, graf
Article in English | LILACS | ID: biblio-1011172

ABSTRACT

ABSTRACT Objective Methylenetetrahydrofolate reductase (MTHFR) is involved in DNA methylation that is associated with autoimmune pathology. We investigated the association between MTHFR genetic polymorphisms at g.677C>T and g.1298A>C and their haplotypes, and the risk of thyroid dysfunction among Jordanian females. Subjects and methods A case-control study involving 98 hypothyroidism cases, 66 hyperthyroidism cases and 100 controls was conducted. Polymerase chain reaction/restriction fragment length polymorphism technique was performed to determine genotypes. Statistical analysis using SPSS software was performed. Results Genetic analysis showed a significant difference in genotype frequency of g.1298A>C between cases, and controls [hypothyroidism: AA (45.9%), AC (37.8%), CC (16.3%); hyperthyroidism: AA (9.1%), AC (69.7%), CC (21.2%); controls: AA (37.8%), AC (29.6%), CC (32.7%); CChypo vs. AAhypo: 2.55, 95% CI: (1.18-5.52); OR at least on Chypo: 1.79, 95% CI: (1.07-2.99)]; CChyper vs. AAhyper: 4.01, 95% CI: (1.79-9.01); OR at least on Chyper: 0.18, 95% CI: (0.07-0.48)]. There was no significant difference in genotype frequency of g.677C>T between cases and controls [hypothyroidism: CC (50.0%), CT (32.7%), TT (17.3%); hyperthyroidism: CC (77.3%), CT (15.2%), TT (7.6%); controls: CC (55.6%), CT (32.3%), TT (12.1%)]. There was a significant difference of MTHFR haplotypes among hypothyroidism cases and controls. TA and CC had a lower hypothyroidism risk whereas; TC showed a higher risk. Conclusions g.1298A>C genetic polymorphism of MTHFR may modulate the risk of thyroid disease. CC, TA, and TC haplotypes affect the risk of hypothyroidism. Larger samples should be included in the future to verify the role of MTHFR polymorphisms in thyroid diseases.


Subject(s)
Humans , Female , Adult , Middle Aged , Young Adult , Polymorphism, Restriction Fragment Length/genetics , Polymorphism, Single Nucleotide/genetics , Methylenetetrahydrofolate Reductase (NADPH2)/genetics , Hyperthyroidism/genetics , Hypothyroidism/genetics , Haplotypes , Case-Control Studies , Polymerase Chain Reaction , Risk Factors , DNA Methylation , Genetic Predisposition to Disease , Alleles , Genotype , Jordan
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