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Association between iodine intake and thyroid autoantibodies: a cross-sectional study of 7073 early pregnant women in an iodine-adequate region.
Sun, J; Teng, D; Li, C; Peng, S; Mao, J; Wang, W; Xie, X; Fan, C; Li, C; Meng, T; Zhang, S; Du, J; Gao, Z; Shan, Z; Teng, W.
Afiliação
  • Sun J; Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China.
  • Teng D; Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China.
  • Li C; Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China.
  • Peng S; Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China.
  • Mao J; Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China.
  • Wang W; Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China.
  • Xie X; Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China.
  • Fan C; Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China.
  • Li C; Department of Obstetrics and Gynecology, Shenyang Fifth People's Hospital, Shenyang, 110023, China.
  • Meng T; Department of Obstetrics and Gynecology, The First Hospital of China Medical University, Shenyang, 110001, China.
  • Zhang S; Department of Endocrinology, No. 202 Hospital of People's Liberation Army, Shenyang, 110003, China.
  • Du J; Department of Endocrinology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116044, China.
  • Gao Z; Department of Endocrinology, Dalian Municipal Central Hospital Affiliated of Dalian Medical University, Dalian, 116033, China.
  • Shan Z; Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China. cmushanzhong
  • Teng W; Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China. twp@vip.163.
J Endocrinol Invest ; 43(1): 43-51, 2020 Jan.
Article em En | MEDLINE | ID: mdl-31264141
ABSTRACT

PURPOSE:

The association between iodine intake and thyroid autoimmunity has been debated, especially in pregnant women. This study aimed to investigate thyroid autoantibodies and their association with iodine intake and hypothyroidism in early pregnancy.

METHODS:

7073 early pregnant women from an iodine-sufficient region participated in this study. Urinary iodine concentrations (UICs) were measured using an ammonium persulfate method. Serum thyroid peroxidase antibody (TPOAb), thyroglobulin antibody (TgAb), thyroid-stimulating hormone (TSH), free thyroxine (FT4), and Tg were determined using an electrochemiluminescence immunoassay.

RESULTS:

Iodine deficiency (UIC < 100 µg/L) was associated with higher risks of TPOAb positivity [adjusted odds ratio (aOR) = 1.64, 95% confidence interval [CI] (1.29-2.08)] and TgAb positivity [aOR = 1.44, 95% CI (1.16-1.80)]. Women with isolated TPOAb positivity, isolated TgAb positivity, or both TPOAb and TgAb positivity had a 14.64-fold, 7.83-fold, and 44.69-fold increased risk of overt hypothyroidism, and a 4.36-fold, 2.86-fold, and 6.26-fold increased risk of subclinical hypothyroidism, respectively. Moreover, the risks of overt and subclinical hypothyroidism in women with a high TPOAb titer were 16.99 and 4.80 times that in TPOAb-negative women, respectively. The risk of overt hypothyroidism in women with a high TgAb titer was 6.97 times that in TgAb-negative women.

CONCLUSIONS:

Our work demonstrates that iodine deficiency during early pregnancy is an independent risk factor for both TPOAb positivity and TgAb positivity. Furthermore, positivity for both autoantibodies and a high thyroid autoantibody titer are associated with significantly higher risks of overt and subclinical hypothyroidism.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Autoanticorpos / Hormônios Tireóideos / Biomarcadores / Hipotireoidismo / Iodo Tipo de estudo: Observational_studies / Prevalence_studies / Prognostic_studies / Risk_factors_studies Limite: Adult / Female / Humans / Pregnancy Idioma: En Ano de publicação: 2020 Tipo de documento: Article
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Autoanticorpos / Hormônios Tireóideos / Biomarcadores / Hipotireoidismo / Iodo Tipo de estudo: Observational_studies / Prevalence_studies / Prognostic_studies / Risk_factors_studies Limite: Adult / Female / Humans / Pregnancy Idioma: En Ano de publicação: 2020 Tipo de documento: Article