The International Journal of Romanian Society of Endocrinology / Registered in 1938

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  • Endocrine Care

    Aydin C, Ersoy R, Ozdemir D, Cuhaci N, Arpaci D, Usluogullari CA, Ustu Y, Baser H, Dirikoc A, Cakir B

    Comparison of Growth Hormone Suppression Response after Oral and Intravenous Glucose Tolerance Tests in Healthy Adults

    Acta Endo (Buc) 2015 11(2): 202-207 doi: 10.4183/aeb.2015.202

    Objective. Personal discrepancies in gastrointestinal physiology might influence responses to GH suppression during OGTT. We aim to compare growth hormone (GH) response during oral glucose tolerance test (OGTT) and intravenous glucose tolerance test (IVGTT). Methods. Data of 18 healthy volunteers were analyzed in the study. Subjects were firstly evaluated with standard 75-g OGTT. In subjects with serum glucose <100 mg/dL at basal state and <140 mg/dL at 120th minute of oral loading, IVGTT was performed after at least 3 days. Serum glucose, insulin and GH levels were measured during two tests. Results. Basal GH levels had a wide distribution ranging from 0.00005 μg/L to 0.768 μg/L (median 0.0145 μg/L). Mean nadir GH level during OGTT was obtained at 60th minute and it was 0.0376 μg/L(range 0.00011-0.387, median 0.0016 μg/L, SD: 0.095, SEM: 0.038). Nadir GH level during IVGTT was observed at 10th minute and it was 0.112 μg/L(range 0.0005-0.770 μg/L, median 0.0053 μg/L, SD: 0.242, SEM: 0.057). There was a statistically significant difference between nadir GH levels obtained during IVGTT and OGTT (p=0.028). Conclusions. We found that mean nadir GH level was significantly higher during IVGTT in healthy subjects. This is a preliminary study and further large scale studies are required to suggest that IVGTT may be used in the diagnosis and follow-up of patients with acromegaly as an alternative to or instead of OGTT.
  • Case Report

    Uslu S

    Papillary Thyroid Carcinoma Following Adalimumab Treatment in Ankylosing Spondylitis: A Causal or Coincidental Association?

    Acta Endo (Buc) 2023 19(3): 376-379 doi: 10.4183/aeb.2023.376

    The introduction of tumor necrosis factor-alpha (TNF-α) targeting drugs has given new opportunities in the treatment of various inflammatory rheumatic diseases and has been the most important development in the treatment of ankylosing spondylitis (AS). However, the increasing use and longer follow-up periods of treatment also pose risks of developing various adverse effects, ranging from common ones, including infections, to uncommon thyroid neoplasms. Adalimumab (ADA), a fully human monoclonal antibody targeted against TNF-α, is indicated for AS. We describe the case of a patient with AS who developed a papillary thyroid carcinoma (PTC) while on therapy with ADA. Cervical lymphadenopathy and a heterogeneous nodule in the right thyroid lobe were detected in the 48-year-old female patient who had been using ADA (40 mg subcutaneously every 2 weeks) for 2 years with the diagnosis of AS. Fine-needle aspiration cytology confirmed PTC. ADA treatment was discontinued, and a total thyroidectomy surgery was performed. We believe that the thyroid gland should also be taken into consideration while screening for malignancy before and during TNF inhibitors (TNFi).