Dergiler / Turkish Journal of Endocrinology and Metabolism / 2020 / Cilt: 24 - Sayı: 1

Obesity is Associated with Increased Thyroid Volume and Heterogeneity in Ultrasonography

Obezite Tiroid Ultrasonografisinde Artmış Tiroid Volümü ve Heterojeniteyle İlişkilidir

Sayfa
9–15
DOI
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

This suggests that the value of US in the diagnosis of autoimmune thyroiditis might decrease in obese patients.

📌 3 Maddede Bu Makale

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Amaç & Hipotez:Objective: The aim of the present study was to investigate the possible association between obesity and thyroid functions and thyroid morphology.
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Temel Bulgular & Veri:Material and Methods: A total of 674 subjects-121 obese and 553 nonobese-were included in the study.
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Sonuç & Katkı:This suggests that the value of US in the diagnosis of autoimmune thyroiditis might decrease in obese patients.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Alan Parametreleri

Özet

Objective: The aim of the present study was to investigate the possible association between obesity and thyroid functions and thyroid morphology. Material and Methods: A total of 674 subjects-121 obese and 553 nonobese-were included in the study. Body mass index, serum thyrotrophic, free triiodothyronine (fT3), free thyroxine (fT4), antithyroid peroxidase antibody, and antithyroglobulin antibody (antiTg) were evaluated in each subject. The subjects with thyroid nodules in ultrasonography (USG) were excluded. The thyroid volume of each subject was calculated and analyzed. Results: Obesity was significantly associated with increased age and low fT4 in univariate analysis (p<0.05). With multivariate analysis, the odds of obesity was found to increase by 21.8% (95% CI: 12.4-31.9%) for each 5-year increase in age anddecrease by 53.1% (95% CI: 0.4-77.9%) for each 1 ng/dL increase in fT4. The odds of obesity in patients with positive antiTg was 1.603 (95% 1.047-2.454) times higher than the odds of obesity in patients with negative antiTg. The median total thyroid volume was significantly higher in obese as compared to nonobese subjects (12.11 mL vs. 10.77 mL, p<0.001). Heterogeneous gland with negative thyroid antibodies was observed in 17 (14%) obese and 40 (7.2%) nonobese subjects (p=0.024). Conclusion: Obesity was positively associated with antiTg and age, whereas negatively associated with fT4. Approximately, in every seven obese subjects, one showed heterogeneity in US despite negative thyroid autoantibodies. This suggests that the value of US in the diagnosis of autoimmune thyroiditis might decrease in obese patients.

Abstract

Amaç: Obezite ile tiroid fonksiyonları ve tiroid morfolojisi arasındaki muhtemel ilişkiyi araştırmaktır. Gereç ve Yöntemler: Çalışmaya toplam 121’i obez 553’ü nonobez olmak üzere 674 birey alındı. Her bireyde beden kitle indeksi, serum tirotiropin, serbest triodotironin (sT3), serbest tiroksin (sT4), antitiroid peroksidaz antikoru ve antitiroglobulin antikoru (antiTg) değerlendirildi. Ultrasonografi (USG) de tiroid nodülü olanlar çalışma dışında bırakıldı. Her bireyde tiroid volümü hesaplandı ve analiz edildi. Bulgular: Univariate analizde obezite anlamlı olarak artan yaş ve düşük sT4 ile ilişkiliydi (p<0,05). Multivariate analizde obezite riski yaşta artan her 5 yıl için %21,8 (%95 güven aralığı (GA): %12,4-31,9) ve sT4’teki her bir ng/dL azalışta %53,1 (%95 GA: %0,4-77,9) artmaktaydı. AntiTg negatif hastalara göre antiTg pozitif olan hastalarda obezite riski 1,603 (%95 1,047-2,454) kat daha fazlaydı. Obezlerde nonobezlere göre median total tiroid volümü anlamlı olarak daha fazlaydı (12,11 mL’ye karşı 10,77 mL, p<0,001). Heterojen glandıyla birlikte tiroid antikorlarının negatifliği 17 (%14) obez ve 40 (%7,2) nonobez bireyde tespit edildi (p=0,024). Sonuç: Obezite antiTg ve yaş ile pozitif ve sT4 ile negatif olarak ilişkiliydi. Obezitesi olan yaklaşık olarak her 7 bireyin birinde tiroid antikorları negatif olmasına rağmen USG’de heterojenite vardı. Bu bize, obez hastalarda otoimmün tiroidit tanısında USG'nin değerinin azalabileceğini göstermektedir.

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Bu Makaleye Atıf Yap

TAM, A. A., ÖZDEMİR, D., ÖĞMEN, B. E., DELLAL, F. D., ALKAN, A., TOPALOĞLU, O., ERSOY, R., ÇAKIR, B. (2020). Obesity is Associated with Increased Thyroid Volume and Heterogeneity in Ultrasonography. Turkish Journal of Endocrinology and Metabolism, Cilt: 24 - Sayı: 1, 9–15. https://ajindex.com/articles/370675

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Kaynakça (13)

  1. Field AE, Coakley EH, Must A, Spadano JL, Laird N, Dietz WH, Rimm E, Colditz GA. Impact of overweight on the risk of developing common chronic diseases during a 10-year period. Arch Intern Med. 2001
  2. [Crossref] [PubMed] 2. Rotondi M, Leporati P, La Manna A, Pirali B, Mondello T, Fonte R, Magri F, Chiovato L. Raised serum TSH levels in patients with morbid obesity: is it enough to diagnose subclinical hypothyroidism? Eur J Endocrinol. 2009
  3. [Crossref] [PubMed] 3. Bétry C, Challan-Belval MA, Bernard A, Charrié A, Drai J, Laville M, Thivolet C, Disse E. Increased TSH in obesity: evidence for a BMI-independent association with leptin. Diabetes Metab. 2015
  4. [Crossref] [PubMed] 4. Bjergved L, Jørgensen T, Perrild H, Laurberg P, Krejbjerg A, Ovesen L, Rasmussen LB, Knudsen N. Thyroid function and body weight: a community-based longitudinal study. PLoS One. 2014
  5. e93515. [Crossref] [PubMed] [PMC] 5. Reinehr T. Obesity and thyroid function. Mol Cell Endocrinol. 2010
  6. [Crossref] [PubMed] 6. Radetti G, Kleon W, Buzi F, Crivellaro C, Pappalardo L, di Iorgi N, Maghnie M. Thyroid function and structure are affected in childhood obesity. J Clin Endocrinol Metab. 2008
  7. [Crossref] [PubMed] 7. Eray E, Sari F, Ozdem S, Sari R. Relationship between thyroid volume and iodine, leptin, and adiponectin in obese women before and after weight loss. Med Princ Pract. 2011
  8. [Crossref] [PubMed] 8. Sari R, Balci MK, Altunbas H, Karayalcin U. The effect of body weight and weight loss on thyroid volume and function in obese women. Clin Endocrinol (Oxf). 2003
  9. [Crossref] [PubMed] 9. Vejbjerg P, Knudsen N, Perrild H, Laurberg P, Pedersen IB, Rasmussen LB, Ovesen L, Jørgensen T. The association between hypoechogenicity or irregular echo pattern at thyroid ultrasonography and thyroid function in the general population. Eur J Endocrinol. 2006
  10. [Crossref] [PubMed] 10. Sanyal D, Raychaudhuri M. Hypothyroidism and obesity: an intriguing link. Indian J Endocrinol Metab. 2016
  11. [Crossref] [PubMed] [PMC] 11. Shon HS, Jung ED, Kim SH, Lee JH. Free T4 is negatively correlated with body mass index in euthyroid women. Korean J Intern Med. 2008
  12. [Crossref] [PubMed] [PMC] 12. Nillni EA, Vaslet C, Harris M, Hollenberg A, Bjørbak C, Flier JS. Leptin regulates prothyrotropin-releasing hormone biosynthesis. Evidence for direct and indirect pathways. J Biol Chem. 2000
  13. 36124-36133. [Crossref