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Bostan H, Kizilgul M, Calapkulu M, Kalkisim HK, Topcu FBG, Gul U, Duger H, Hepsen S, Ucan B, Cakal E. The prevalence and associated risk factors of detectable renal morphological abnormalities in acromegaly. Pituitary 2024; 27:44-51. [PMID: 38064149 DOI: 10.1007/s11102-023-01370-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/27/2023] [Indexed: 02/03/2024]
Abstract
PURPOSE The aim of this study was to investigate the prevalence of simple renal cysts (SRCs) and kidney stone disease (KSD) together with laboratory data in patients with acromegaly through comparisons with healthy subjects, and to examine the possible risk factors associated with these abnormalities in acromegaly. METHODS This retrospective, single-center study included 125 acromegaly patients (46.4 ± 11.6 years, 68 females/57 males) and 114 age-sex matched healthy individuals (45.3 ± 12.4 years, 59 females/55 males). Demographic data, clinical history, biochemical and abdominal/urinary system ultrasonographic data of the patients were reviewed. RESULTS The SRC prevalence (28.8% vs. 8.8%, p < 0.001) and the longitudinal and transverse lengths of kidneys (p < 0.05) were significantly higher in patients with acromegaly compared to the control group. The presence of acromegaly was determined to increase the risk of SRC formation 12.8-fold. The prevalence of KSD was similar in both the patient and control groups (15.2% vs. 7.9%, p = 0.08). Patients with acromegaly with renal cysts (n = 36) compared to the group without cysts (n = 89) were older, had a higher male gender frequency, a longer pre-diagnosis symptom duration, and a higher incidence of hypertension and diabetes mellitus at the time of diagnosis. The multivariate logistic regression analysis showed that only advanced age and male gender were associated risk factors for SRCs in acromegaly patients. CONCLUSION The results of this study showed that acromegaly disease significantly increased the prevalence of SRCs and kidney length compared to the age-sex matched healthy population, while the prevalence of KSD was similar. Advanced age and male gender were seen to be independent risk factors for SRC formation in patients with acromegaly.
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Affiliation(s)
- Hayri Bostan
- Department of Endocrinology and Metabolism, Canakkale Mehmet Akif Ersoy State Hospital, Canakkale, Türkiye.
- Department of Endocrinology and Metabolism, Ankara Etlik City Hospital, Ankara, Türkiye.
| | - Muhammed Kizilgul
- Department of Endocrinology and Metabolism, Ankara Etlik City Hospital, Ankara, Türkiye
| | - Murat Calapkulu
- Department of Endocrinology and Metabolism, Igdir Nevruz Erez State Hospital, Igdir, Türkiye
| | | | | | - Umran Gul
- Department of Endocrinology and Metabolism, Ankara Etlik City Hospital, Ankara, Türkiye
| | - Hakan Duger
- Department of Endocrinology and Metabolism, Kilis State Hospital, Kilis, Türkiye
| | - Sema Hepsen
- Department of Endocrinology and Metabolism, Ankara Etlik City Hospital, Ankara, Türkiye
| | - Bekir Ucan
- Department of Endocrinology and Metabolism, Ankara Etlik City Hospital, Ankara, Türkiye
| | - Erman Cakal
- Department of Endocrinology and Metabolism, Ankara Etlik City Hospital, Ankara, Türkiye
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Bostan H, Sencar ME, Calapkulu M, Kayihan S, Hepsen S, Cimsir A, Gul U, Ozturk Unsal I, Ozcelik O, Kizilgul M, Ucan B, Cakal E. Impact of the COVID-19 pandemic on the incidence, seasonal distribution, and characteristics of subacute thyroiditis. Endocrine 2023; 79:323-330. [PMID: 36129593 PMCID: PMC9490701 DOI: 10.1007/s12020-022-03197-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 09/09/2022] [Indexed: 02/04/2023]
Abstract
PURPOSE An increasing number of cases of subacute thyroiditis (SAT) related to the coronavirus disease 2019 (COVID-19) and its vaccines continue to be published. The aim of this study was to investigate any change in the incidence and characteristics of SAT by comparing the pre-pandemic and pandemic periods. METHODS This retrospective, single-center study included 432 newly-diagnosed SAT patients between January 2018 and December 2021. The annual frequency of SAT was calculated as the number of newly-diagnosed SAT cases divided by the total number of outpatients that year. RESULTS The frequencies of newly-diagnosed SAT were 0.136% in 2018, 0.127% in 2019, 0.157% in 2020, and 0.114% in 2021 (p = 0.19). While SAT patients were clustered in the autumn (35.1%) in 2018 and 2019, it was found that this cluster shifted to the winter (33.0%) in 2020 and 2021, in parallel with COVID-19 case peaks (p = 0.017). The patients were separated into two groups as pre-COVID-19 pandemic SAT (n = 272) and COVID-19 pandemic SAT (n = 160). The mean ages of the groups were similar. There were more male patients in the COVID-19 pandemic SAT group than in the pre-pandemic group (30.6% vs. 18.7%, p = 0.005). Frequencies of overt hyperthyroidism and median free-thyroxine levels were significantly higher in the COVID-19 pandemic SAT group (p = 0.029, p = 0.001). Treatment modalities, recurrence rates, and permanent hypothyroidism were similar in both groups. CONCLUSION With the COVID-19 pandemic, although there was a change in seasonal variation of SAT and an increase in the number of male patients, there was no change in the incidence and clinical course of SAT.
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Affiliation(s)
- Hayri Bostan
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey.
| | - Muhammed Erkam Sencar
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
- Department of Endocrinology and Metabolism, Medicana International Ankara Hospital, Ankara, Turkey
| | - Murat Calapkulu
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Serdar Kayihan
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Sema Hepsen
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Aykut Cimsir
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Umran Gul
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Ilknur Ozturk Unsal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Ozgur Ozcelik
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Muhammed Kizilgul
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Bekir Ucan
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
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Kizilgul M, Karakis R, Dogan N, Bostan H, Yapici MM, Gul U, Ucan B, Duman E, Duger H, Cakal E, Akin O. Real-time detection of acromegaly from facial images with artificial intelligence. Eur J Endocrinol 2023; 188:6986588. [PMID: 36747333 DOI: 10.1093/ejendo/lvad005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/21/2022] [Accepted: 01/05/2023] [Indexed: 01/15/2023]
Abstract
OBJECTIVE Despite improvements in diagnostic methods, acromegaly is still a late-diagnosed disease. In this study, it was aimed to automatically recognize acromegaly disease from facial images by using deep learning methods and to facilitate the detection of the disease. DESIGN Cross-sectional, single-centre study. METHODS The study included 77 acromegaly (52.56 ± 11.74, 34 males/43 females) patients and 71 healthy controls (48.47 ± 8.91, 39 males/32 females), considering gender and age compatibility. At the time of the photography, 56/77 (73%) of the acromegaly patients were in remission. Normalized images were obtained by scaling, aligning, and cropping video frames. Three architectures named ResNet50, DenseNet121, and InceptionV3 were used for the transfer learning-based convolutional neural network (CNN) model developed to classify face images as "Healthy" or "Acromegaly". Additionally, we trained and integrated these CNN machine learning methods to create an Ensemble Method (EM) for facial detection of acromegaly. RESULTS The positive predictive values obtained for acromegaly with the ResNet50, DenseNet121, InceptionV3, and EM were calculated as 0.958, 0.965, 0.962, and 0.997, respectively. The average sensitivity, specificity, precision, and correlation coefficient values calculated for each of the ResNet50, DenseNet121, and InceptionV3 models are quite close. On the other hand, EM outperformed these three CNN architectures and provided the best overall performance in terms of sensitivity, specificity, accuracy, and precision as 0.997, 0.997, 0.997, and 0.998, respectively. CONCLUSIONS The present study provided evidence that the proposed AcroEnsemble Model might detect acromegaly from facial images with high performance. This highlights that artificial intelligence programs are promising methods for detecting acromegaly in the future.
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Affiliation(s)
- Muhammed Kizilgul
- University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Department of Endocrinology, Ankara, Turkey
| | - Rukiye Karakis
- Sivas Cumhuriyet University, Faculty of Technology, Software Engineering Department, Sivas, Turkey
| | - Nurettin Dogan
- Selçuk University, Faculty of Technology, Computer Engineering Department, Konya, Turkey
| | - Hayri Bostan
- University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Department of Endocrinology, Ankara, Turkey
| | - Muhammed Mutlu Yapici
- Ankara University, Elmadağ Vocational School, Computer Technologies Department, Ankara, Turkey
| | - Umran Gul
- University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Department of Endocrinology, Ankara, Turkey
| | - Bekir Ucan
- University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Department of Endocrinology, Ankara, Turkey
| | - Elvan Duman
- Burdur Mehmet Akif Ersoy University, Faculty of Technology, Software Engineering Department, Burdur, Turkey
| | - Hakan Duger
- University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Department of Endocrinology, Ankara, Turkey
| | - Erman Cakal
- University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Department of Endocrinology, Ankara, Turkey
| | - Omer Akin
- TOBB ETU, Faculty of Science and Literature, Mathematics Department, Ankara, Turkey
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Bostan H, Unsal IO, Kizilgul M, Gul U, Sencar ME, Ucan B, Cakal E. Response to the letter to the editor: two cases of subacute thyroiditis after different types of SARS-CoV-2 vaccination. Archives of Endocrinology and Metabolism 2022; 66:932-933. [PMID: 36394488 PMCID: PMC10118765 DOI: 10.20945/2359-3997000000569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Bostan H, Kayihan S, Calapkulu M, Hepsen S, Gul U, Ozturk Unsal I, Kizilgul M, Sencar ME, Cakal E, Ucan B. Evaluation of the diagnostic features and clinical course of COVID-19 vaccine-associated subacute thyroiditis. Hormones (Athens) 2022; 21:447-455. [PMID: 35711078 PMCID: PMC9203142 DOI: 10.1007/s42000-022-00380-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 06/08/2022] [Indexed: 01/06/2023]
Abstract
OBJECTIVE This study aimed to identify cases of coronavirus disease 2019 (COVID-19) vaccine-associated subacute thyroiditis (SAT) during the active vaccination period of the pandemic, analyze the characteristics of these cases, and compare them with cases of non-vaccine associated SAT diagnosed in the same period. METHODS A total of 55 patients diagnosed with SAT in our outpatient clinic between February and October, 2021, were included in this retrospective single-center study. RESULTS Of the study population, 16 (29.1%) were diagnosed with COVID-19 vaccine-associated SAT (10 with CoronaVac® and six with Pfizer-BioNTech® vaccine), with a median time to onset of symptoms after vaccination of 6.5 (range, 2-20) days. There was no statistically significant difference between the vaccine-associated (VA) and non-vaccine associated (NVA) groups in terms of age, gender, time to diagnosis, thyroid volumes, thyroid function tests, and acute phase reactants. Seven (43.8%) and 25 (64.1%) patients were treated with methylprednisolone in the VA group and NVA group, respectively (p = 0.16). Follow-up data of 45 patients (16/16 for VA and 29/39 for NVA) were available. The mean follow-up of these patients was 47.4 ± 19.4 days, and the follow-up periods of the VA group and NVA group were comparable (p = 0.24). There was no difference between the two groups in terms of the frequency of euthyroidism at the follow-up visit (12/16 vs.14/29, p = 0.08). CONCLUSION With the increase in COVID-19 vaccination rates during the current pandemic, VA SAT cases are seen more frequently. The present study demonstrated that these cases have similar diagnostic features and clinical course to that of classic forms of SAT. In addition, most patients with VA SAT had a mild clinical course that improved with non-steroidal anti-inflammatory drugs.
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Affiliation(s)
- Hayri Bostan
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ziraat Mahallesi, Şht. Ömer Halisdemir Blv No. 1, 06110, AltindagAnkara, Turkey.
| | - Serdar Kayihan
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ziraat Mahallesi, Şht. Ömer Halisdemir Blv No. 1, 06110, AltindagAnkara, Turkey
| | - Murat Calapkulu
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ziraat Mahallesi, Şht. Ömer Halisdemir Blv No. 1, 06110, AltindagAnkara, Turkey
| | - Sema Hepsen
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ziraat Mahallesi, Şht. Ömer Halisdemir Blv No. 1, 06110, AltindagAnkara, Turkey
| | - Umran Gul
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ziraat Mahallesi, Şht. Ömer Halisdemir Blv No. 1, 06110, AltindagAnkara, Turkey
| | - Ilknur Ozturk Unsal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ziraat Mahallesi, Şht. Ömer Halisdemir Blv No. 1, 06110, AltindagAnkara, Turkey
| | - Muhammed Kizilgul
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ziraat Mahallesi, Şht. Ömer Halisdemir Blv No. 1, 06110, AltindagAnkara, Turkey
| | - Muhammed Erkam Sencar
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ziraat Mahallesi, Şht. Ömer Halisdemir Blv No. 1, 06110, AltindagAnkara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ziraat Mahallesi, Şht. Ömer Halisdemir Blv No. 1, 06110, AltindagAnkara, Turkey
| | - Bekir Ucan
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ziraat Mahallesi, Şht. Ömer Halisdemir Blv No. 1, 06110, AltindagAnkara, Turkey
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Sencar ME, Calapkulu M, Bostan H, Sakiz D, Hepsen S, Kizilgul M, Unsal IO, Ozcelik O, Arslan E, Ucan B, Azili C, Ozbek M, Cakal E. Effect of thyroid nodule size on cytology reliability and incidence of malignancy: A large cohort of 1,205 patients from a single center. Annales d'Endocrinologie 2022; 84:238-241. [PMID: 36126756 DOI: 10.1016/j.ando.2022.08.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 04/09/2022] [Accepted: 08/29/2022] [Indexed: 10/14/2022]
Abstract
OBJECTIVE There is controversy about whether the rates of malignancy and of false-negative malignancy are greater in large nodules. The aim of this study was to determine the reliability of cytology in ≥4cm nodules and to compare malignancy rates between ≥4cm and<4cm nodules. METHODS The study included 1205 patients who underwent biopsy and subsequent thyroidectomy with the diagnosis of nodular thyroid disease between 2014 and 2019. The patients were separated into two groups, ≥4cm and<4cm, according to the size of the index nodule on ultrasonography. RESULTS Two hundred and eleven index nodules (17.5%) were ≥4cm. Malignancy rate on definitive pathology was 51% in<4cm nodules and 30% in ≥4cm nodules. Malignancy risk was significantly lower in ≥4cm nodules than <4cm nodules (P<0.001). When<1cm nodules were excluded and 1-4cm and ≥4cm nodules were compared, malignancy risk was also significantly lower in ≥4cm nodules (P=0.001). On definitive pathology, there were 45 false-negative results among cytologically benign nodules. There was no difference in false-negative cytology rate between<4cm and ≥4cm nodules (P=0.209). CONCLUSION The present study found no decrease in the reliability of cytology in ≥4cm nodules, and there may not be a linear relationship between nodule size and malignancy risk. Therefore, in asymptomatic cytologically benign ≥4cm nodules, surgery may not be recommended based on nodule size alone.
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Hepsen S, Bostan H, Akhanli P, Sencar ME, Kizilgul M, Ucan B, Ozcelik O, Cakal E. Subacute thyroiditis paranchime heterogeneity may mask thyroid nodules and higher EU-TIRADS scores. Endocrine 2022; 77:291-296. [PMID: 35553358 DOI: 10.1007/s12020-022-03069-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 05/01/2022] [Indexed: 11/27/2022]
Abstract
PURPOSE Nonhomogenous and ill-defined hypoechoic areas are typical ultrasonographic features of subacute thyroiditis (SAT). Evaluating a thyroid nodule accurately in this heterogeneous paranchime may be troublesome. This study aims to compare thyroid nodules, their characteristics, and European Thyroid Imaging and Reporting Data System (EU-TIRADS) categories at the time of the diagnosis and in the remission of SAT. METHODS Ultrasonographic features of SAT and characteristics and EU-TIRADS categories of thyroid nodules in the initial and control ultrasonography (US) of 350 patients with SAT have been evaluated in this retrospective observational study. Fine needle aspiration biopsy (FNAB) results and postsurgical data, if performed, have been estimated. RESULTS A hundred patients (28.6%) with SAT had thyroid nodules at the time of the diagnosis, while 152 (43.4%) patients had a nodule in remission US (p < 0.001). The number of thyroid nodules was found to be higher in the control US as against the initial US (p = 0.001). EU-TIRADS scores of the nodules in the remission US were significantly higher than the scores at the time of the diagnosis (p < 0.001). FNAB was performed in 23% of nodules observed in the remission US, and the rate of thyroid carcinoma within them was 3.3%. CONCLUSION Thyroid nodules, malignancy suspected features, and EU-TIRADS categories of them may not be appropriately evaluated due to heterogenous paranchime of SAT. Performing a control US examination after resolution of hypoechoic areas may be beneficial to avoid missing clinically significant nodules with high EU-TIRADS scores.
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Affiliation(s)
- Sema Hepsen
- University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey.
| | - Hayri Bostan
- University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Pinar Akhanli
- University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Muhammed Erkam Sencar
- University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Muhammed Kizilgul
- University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Bekir Ucan
- University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Ozgur Ozcelik
- University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Erman Cakal
- University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
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Kizilgul M, Duger H, Nasiroglu NI, Sencar E, Hepsen S, Akhanli P, Berker D, Cakal E, Bostan H, Ucan B. Efficacy of cabergoline add-on therapy in patients with acromegaly resistance to somatostatin analogs treatment and the review of literature. Arch Endocrinol Metab 2022; 66:2359-3997000000481. [PMID: 35612842 PMCID: PMC9832853 DOI: 10.20945/2359-3997000000481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 03/02/2022] [Indexed: 11/23/2022]
Abstract
Objective It is reported that adding cabergoline to somatostatin analog (SSA) normalizes IGF-1 levels approximately in one-third of patients with acromegaly. We investigated the effect of combination therapy and potential predictors of response in patients with acromegaly who do not respond to SSA therapy alone. Methods Fifty acromegaly patients (M/F 23/27, mean age 50.88 ± 12.34 years) were divided into two groups as the active and control groups in this connection. Before and after treatment, we not only evaluated serum GH and IGF-1 levels and tumor size but also analyzed the factors relevant to the effect of the combined therapy. Results Adding cabergoline to SSA treatment led to IGF-1 normalization in 42% (21/50) of patients. Mean GH levels decreased from 2.64 ± 1.79 to 1.34 ± 0.99 ng/mL (p < .0001) and IGF-1 levels decreased from 432.92 ± 155.61 to 292.52 ± 126.15 ng/mL (p < .0001). GH and IGF-1 reduction in percent (%) were significantly higher in the controlled group (63% to 40%, p = 0.023 and 45% to 19%, p = 0.0001). Moreover, tumor size decrease was significantly higher in controlled group (-3.6 cm to -1.66 cm, p = 0.005). Conclusion According to the results of our study, the addition of cabergoline to SSA normalized IGF-1 levels in a considerable amount of acromegaly patients with a moderately elevated IGF-1 level, regardless of serum PRL levels. Besides, cabergoline treatment was also influential in patients with higher IGF-1 levels despite a lower remission rate.
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Affiliation(s)
- Muhammed Kizilgul
- University of Health Sciences, Diskapi Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey, ;
| | - Hakan Duger
- University of Health Sciences, Diskapi Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Narin Imga Nasiroglu
- University of Health Sciences, Numune Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Erkam Sencar
- University of Health Sciences, Diskapi Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Sema Hepsen
- University of Health Sciences, Diskapi Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Pinar Akhanli
- University of Health Sciences, Diskapi Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Dilek Berker
- University of Health Sciences, Numune Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Erman Cakal
- University of Health Sciences, Diskapi Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Hayri Bostan
- University of Health Sciences, Diskapi Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Bekir Ucan
- University of Health Sciences, Diskapi Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
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Bostan H, Ucan B, Kizilgul M, Calapkulu M, Hepsen S, Gul U, Ozturk Unsal I, Cakal E. Relapsed and newly diagnosed Graves’ disease due to immunization against COVID-19: A case series and review of the literature. J Autoimmun 2022; 128:102809. [PMID: 35220164 PMCID: PMC8867370 DOI: 10.1016/j.jaut.2022.102809] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 02/14/2022] [Accepted: 02/19/2022] [Indexed: 01/06/2023]
Abstract
In addition to genetic factors, environmental factors such as viruses are thought to be triggers in the development of autoimmune thyroid diseases (AITD) such as Graves' disease (GD). In this context, AITD cases that may be associated with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection or immunization have begun to be reported in increasing numbers. Although it is not clear by which pathogenetic mechanisms immunization against coronavirus disease 2019 (COVID-19) triggers the development of AITD, both the potential effect of the adjuvants in the vaccines and the cross-reactivity that can be generated by the molecular similarity of viral particles with mammalian proteins seem to be possible mechanisms. In this article, 7 GD patients consisting of relapsed and newly diagnosed cases following the COVID-19 vaccination were presented. Of these 7 cases, 5 (71.4%) were female, and the median age of the patients was 47 years (range, 31–53). One of the patients was associated with the inactivated COVID-19 vaccine, while the others were associated with the mRNA COVID-19 vaccine. The median post-vaccination symptom onset was 7 days (range, 4–30). Three of the patients had a history of GD and one had a history of Hashimoto's thyroiditis. Rapidly developing Graves' ophthalmopathy was detected in one patient. These cases are cautionary that GD and its extrathyroidal manifestations may develop in a short period after COVID-19 vaccination. When considered together with the literature review, the history of AITD in approximately half of the patients suggests that more attention should be paid to these patients in the post-vaccination period. Nevertheless, multicenter, prospective studies are needed to better understand this possible causal relationship.
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Affiliation(s)
- Hayri Bostan
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey.
| | - Bekir Ucan
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Muhammed Kizilgul
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Murat Calapkulu
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Sema Hepsen
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Umran Gul
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Ilknur Ozturk Unsal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
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Bostan H, Unsal IO, Kizilgul M, Gul U, Sencar ME, Ucan B, Cakal E. Two cases of subacute thyroiditis after different types of SARS-CoV-2 vaccination. Arch Endocrinol Metab 2022; 66:97-103. [PMID: 35029854 PMCID: PMC9991036 DOI: 10.20945/2359-3997000000430] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 09/22/2021] [Indexed: 11/23/2022]
Abstract
Although the development of subacute thyroiditis (SAT) following viral infections is well-documented, the actual mechanism has not been clearly elucidated. The occurrence of SAT after vaccination has been reported in several case series and possible mechanisms such as molecular mimicry due to the exposure to viral proteins and/or abnormal reactogenicity by adjuvants have been implicated. We describe two cases who developed SAT three days after the messenger RNA vaccine against COVID-19 (Pfizer-BioNTech®) and six days after the inactivated COVID-19 vaccine (CoronaVac®). SAT diagnosis of these patients was delayed for more than two weeks. When the current cases were evaluated together with 1 Pfizer-BioNTech® and 3 CoronaVac® related cases reported previously, the patients were female aged between 30-42, except for the male patient we presented, and the complaints of the patients initiated within the first 2-7 days. While two Pfizer-BioNTech® vaccine-related cases were severely symptomatic and thyrotoxic at presentation, there were cases with mild to moderate clinical manifestations in CoronaVac® vaccine-related group. Physicians should be aware of SAT that may occur within a few days following the COVID-19 vaccination.
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Affiliation(s)
- Hayri Bostan
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey,
| | - Ilknur Ozturk Unsal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Muhammed Kizilgul
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Umran Gul
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Muhammed Erkam Sencar
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Bekir Ucan
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
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Bostan H, Duger H, Akhanli P, Calapkulu M, Turkmenoglu TT, Erdol AK, Duru SA, Sencar ME, Kizilgul M, Ucan B, Ozbek M, Cakal E. Cushing's syndrome due to adrenocorticotropic hormone-secreting metastatic neuroendocrine tumor of unknown primary origin: a case report and literature review. Hormones (Athens) 2022; 21:147-154. [PMID: 34478059 PMCID: PMC8414022 DOI: 10.1007/s42000-021-00316-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Accepted: 08/24/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND In this article, we present a case of neuroendocrine neoplasm of unknown primary origin (UPO NEN), which is a rare cause of ectopic Cushing's syndrome (ECS) presenting numerous challenges, together with a literature review. CASE REPORT A 43-year-old male patient presented with clinical features consistent with Cushing's syndrome (CS) and adrenocorticotropic hormone (ACTH)-dependent hypercortisolemia. Despite a suspicious lesion on pituitary MRI, the high-dose dexamethasone suppression test and bilateral inferior petrosal sinus sampling results were not compatible with Cushing's disease. Bilateral non-homogeneous opacities were observed in the thorax CT of the patient, who also had a history of COVID-19 infection, but no tumoral lesion was detected. When 68Ga-SSTR PET/CT and 18FDG-PET/CT were performed, multiple metastatic foci were detected in mediastinal and hilar lymph nodes and the axial skeleton. Paratracheal-subcarinal lymph nodes were excised mediastinoscopically, and the diagnosis of NEN was made. Histopathological findings indicated that the possible origin was an atypical pulmonary carcinoid with a low Ki-67 labeling index. After controlling hypercortisolemia, a regimen of somatostatin analogs and capecitabine plus temozolomide was decided upon as treatment by a multidisciplinary council. CONCLUSION This is a challenging case of UPO NEN presenting with ECS and confounding factors, such as previous infection and incidental lesions, during the diagnosis process. The case in question highlighted the fact that atypical pulmonary carcinoid with a low proliferation index may cause visible metastases even when radiologically undetectable.
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Affiliation(s)
- Hayri Bostan
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ziraat Mahallesi, Şht. Ömer Halisdemir Blv. No. 1, 6110, Ankara, Turkey.
| | - Hakan Duger
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ziraat Mahallesi, Şht. Ömer Halisdemir Blv. No. 1, 6110, Ankara, Turkey
| | - Pinar Akhanli
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ziraat Mahallesi, Şht. Ömer Halisdemir Blv. No. 1, 6110, Ankara, Turkey
| | - Murat Calapkulu
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ziraat Mahallesi, Şht. Ömer Halisdemir Blv. No. 1, 6110, Ankara, Turkey
| | - Tugba Taskin Turkmenoglu
- Department of Pathology, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Ayse Kevser Erdol
- Department of Chest Diseases, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Serap Akcali Duru
- Department of Chest Diseases, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Muhammed Erkam Sencar
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ziraat Mahallesi, Şht. Ömer Halisdemir Blv. No. 1, 6110, Ankara, Turkey
| | - Muhammed Kizilgul
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ziraat Mahallesi, Şht. Ömer Halisdemir Blv. No. 1, 6110, Ankara, Turkey
| | - Bekir Ucan
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ziraat Mahallesi, Şht. Ömer Halisdemir Blv. No. 1, 6110, Ankara, Turkey
| | - Mustafa Ozbek
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ziraat Mahallesi, Şht. Ömer Halisdemir Blv. No. 1, 6110, Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ziraat Mahallesi, Şht. Ömer Halisdemir Blv. No. 1, 6110, Ankara, Turkey
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12
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Sakiz D, Sencar ME, Calapkulu M, Unsal IO, Aktas L, Ucan B, Ozbek M, Cakal E. The Effects of Chronic Lymphocytic Thyroiditis on Clinicopathological Factors In Papillary Thyroid Cancer. Endocr Pract 2021; 27:1199-1204. [PMID: 34293511 DOI: 10.1016/j.eprac.2021.07.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 07/10/2021] [Accepted: 07/13/2021] [Indexed: 11/26/2022]
Abstract
INTRODUCTION This study evaluated the impact of chronic lymphocytic thyroiditis (CLT) on clinicopathological parameters, prognostic outcome and initial treatment responses in patients with papillary thyroid cancer (PTC). METHODS A retrospective review was made of 1409 patients with PTC, comprising 443 pathology proven PTC patients with CLT and 447 PTC patients without CLT. RESULTS The median follow-up time was 58 (8-380) months and the median age at the time of diagnosis was 43 years. The diagnosis age was significantly lower in patients with CLT (42 vs. 45 years, p:0.001). The preoperative TSH level was found to be significantly higher in CLT patients (1.71 mIU/L vs. 1.28 mIU/L, p<0.001). Multifocality, capsular, lymphovascular and perineural invasion were detected at a higher rate in the group with CLT than in the group without CLT (p:0.015, p:0.024, p:0.004, p:0.039, respectively). No difference was found between the two groups in terms of tumor size, bilaterality, extrathyroidal invasion, lymph node metastasis, disease stage and response to treatment (p>0.05). CONCLUSION The results of the present study demonstrated that coexistence of PTC and CLT is very frequent. It was found that patients with PTC and CLT coexistence were diagnosed at an earlier age and the TSH level was higher. Contrary to previous studies, no positive effect of CLT and PTC combination was detected on any clinicopathological factor. In addition, lymphovascular and perineural invasion, which had negative effects on prognosis, was more common in the CLT group.
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Affiliation(s)
- Davut Sakiz
- Department of Endocrinology and Metabolism, Mardin State Hospital, Mardin Turkey.
| | - Muhammed Erkam Sencar
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Murat Calapkulu
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Ilknur Ozturk Unsal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Levent Aktas
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Bekir Ucan
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Mustafa Ozbek
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
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Sencar ME, Hepsen S, Çalapkulu M, Bostan H, Sakiz D, Ozturk Unsal I, Duger H, Kizilgul M, Ucan B, Taskin Turkmenoglu T, Ozbek M, Cakal E. The value of routine measurement of serum calcitonin on insufficient, indeterminate, and suspicious thyroid nodule cytology. Bosn J Basic Med Sci 2021; 22:118-123. [PMID: 34247569 PMCID: PMC8860309 DOI: 10.17305/bjbms.2021.5756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 05/14/2021] [Indexed: 11/16/2022] Open
Abstract
Routine calcitonin measurement in patients with nodular thyroid disease is rather controversial. The aim of this study was to evaluate the contribution of serum calcitonin measurement in the diagnostic evaluation of thyroid nodules with insufficient, indeterminate, or suspicious cytology. Out of 1668 patients who underwent thyroidectomy with the diagnosis of nodular thyroid disease and were screened, 873 patients with insufficient, indeterminate, or suspicious fine-needle aspiration biopsy results were included in the study. From the total number of patients in this study, 10 (1.1%) were diagnosed as medullary thyroid cancer (MTC) using histopathology. The calcitonin level was detected to be above the assay-specific cutoff in 23 (2.6%) patients ranging between 6.5 and 4450 pg/mL. While hypercalcitoninemia was detected in all 10 MTC patients, a false positive elevation of serum calcitonin was detected in 13 patients (1.5%). Of the MTC group, seven patients had cytology results that were suspicious for malignancy (Bethesda V), one patient’s cytology showed atypia of undetermined significance (Bethesda III), and two patient’s cytology results were suspicious for follicular neoplasm (Bethesda IV). Among the cases with non-diagnostic cytology (Bethesda I), none of the patients were diagnosed with MTC. In conclusion, routine serum calcitonin measurement can be performed in selected cases rather than in all nodular thyroid patients. While it is reasonable to perform routine calcitonin measurement in patients with Bethesda IV and Bethesda V, this measurement was not useful in Bethesda I patients. In Bethesda III patients, patient-based decisions can be made according to their calcitonin measurement.
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Affiliation(s)
- Muhammed Erkam Sencar
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Sema Hepsen
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Murat Çalapkulu
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Hayri Bostan
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Davut Sakiz
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Ilknur Ozturk Unsal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Hakan Duger
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Muhammed Kizilgul
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Bekir Ucan
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Tugba Taskin Turkmenoglu
- Department of Pathology, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Mustafa Ozbek
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
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14
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Hepsen S, Sakiz D, Pamukcu HE, Arslan IE, Duger H, Akhanli P, Sencar ME, Unsal IO, Ucan B, Kizilgul M, Cakal E. The Assessment of Ventricular Arrhythmia Indicators Based on Electrocardiography in Patients With Differentiated Thyroid Cancer Followed Up With Levothyroxine Suppression. Angiology 2021; 72:657-663. [PMID: 33557584 DOI: 10.1177/0003319721993343] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Levothyroxine suppression therapy (LST) can cause some unfavorable effects on the cardiovascular system in patients with differentiated thyroid cancer (DTC). The aim of this study was to evaluate ventricular arrhythmia predictors based on electrocardiography (ECG) in patients with DTC with LST. The ECG parameters including QT, corrected QT (QTc), Tp-e intervals, Tp-e/QT, and Tp-e/QTC ratios of 265 patients with DTC who met the inclusion criteria were compared with 100 controls. No difference was observed in the number of patients with DTC and controls with prolonged and borderline QTc interval (P = .273). Tp-e interval, Tp-e/QT, and Tp-e/QTc ratios were significantly higher in patients (P = .002, P = .02, P = .003; respectively). Linear regression analysis suggested that male gender was a predictor of higher Tp-e interval, Tp-e/QT, and Tp-e/QTc ratios (β = 4.322, R 2 = 0.024, P = .042; β = 0.016, R 2 = 0.048, P = .005; β = 0.015, R 2 = 0.044, P = .006, respectively). A higher serum fT4 level was found to be associated with a higher Tp-e/QT ratio (β = 0.018, R 2 = 0.089, P = .007). Ventricular arrhythmia indicators were found to be higher in patients with DTC with LST. Defining ventricular arrhythmia predictors through ECG, an easily accessible cardiac diagnostic tool, can be potentially useful in raising awareness of the possible cardiac harm of LST.
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Affiliation(s)
- Sema Hepsen
- Department of Endocrinology and Metabolism, 66908University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Davut Sakiz
- Department of Endocrinology and Metabolism, 66908University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Hilal Erken Pamukcu
- Department of Cardiology, 66908University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Ismail Emre Arslan
- Department of Endocrinology and Metabolism, 66908University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Hakan Duger
- Department of Endocrinology and Metabolism, 66908University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Pinar Akhanli
- Department of Endocrinology and Metabolism, 66908University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Muhammed Erkam Sencar
- Department of Endocrinology and Metabolism, 66908University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Ilknur Ozturk Unsal
- Department of Endocrinology and Metabolism, 66908University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Bekir Ucan
- Department of Endocrinology and Metabolism, 66908University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Muhammed Kizilgul
- Department of Endocrinology and Metabolism, 66908University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, 66908University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
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Ucan B, Kizilgul M, Karci AC, Duger H, Erkam Sencar M, Imga NN, Demirci T, Berker D, Erman Cakal. THE PREVALENCE OF CANCER AND ITS RELATION TO DISEASE ACTIVITY IN PATIENTS WITH ACROMEGALY: TWO CENTERS' EXPERIENCE. Endocr Pract 2021; 27:51-55. [PMID: 33475501 DOI: 10.4158/ep-2020-0398] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE Acromegaly is characterized by increased serum concentrations of growth hormone (GH) and insulin-like growth factor 1 (IGF-1). Although animal studies have demonstrated a relationship between these hormones and cancer risk, the results of human studies evaluating cancer prevalence in acromegaly are inconsistent. We aimed to investigate the prevalence of malignant neoplasms in patients with acromegaly. METHODS Cancer risk was evaluated in a cohort of 280 patients (male/female: 120/160; mean age: 50.93 ± 12.07 years) with acromegaly. Patients were categorized into 2 groups according to the presence or absence of cancer. Standard incidence ratios were calculated as compared to the general population. RESULTS From 280 patients, cancer was diagnosed in 19 (6.8%) patients; 9 (47%) of them had thyroid cancer, which was the most common cancer type. Standard incidence ratios of all cancers were 0.8 (95% CI, 0.5-1.1) and 1.0 (95% CI, 0.8-1.3) in men and women, respectively. Compared to patients without cancer, the current age was higher in patients with cancer (59 [49-65] to 51 [42-59], P = .027). In contrast, the age at diagnosis was similar in both groups. Not only was the time to diagnosis and disease duration similar in both groups but also the basal and current GH and IGF-1 levels. The prevalence of active disease was also similar between the groups (32% to 23%, P = .394). CONCLUSION Our findings were not consistent with the studies suggesting that patients with acromegaly encounter an increased cancer risk. Furthermore, there were similar basal and current GH and IGF-1 levels in patients with acromegaly, both with and without cancer.
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Affiliation(s)
- Bekir Ucan
- Department of Endocrinology and Metabolism, University of Health Sciences, Dıskapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
| | - Muhammed Kizilgul
- Department of Endocrinology and Metabolism, University of Health Sciences, Dıskapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey.
| | - Alper Cagri Karci
- Department of Endocrinology and Metabolism, University of Health Sciences, Numune Training and Research Hospital, Ankara, Turkey
| | - Hakan Duger
- Department of Endocrinology and Metabolism, University of Health Sciences, Dıskapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
| | - Muhammed Erkam Sencar
- Department of Endocrinology and Metabolism, University of Health Sciences, Dıskapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
| | - Narin Nasiroglu Imga
- Department of Endocrinology and Metabolism, University of Health Sciences, Numune Training and Research Hospital, Ankara, Turkey
| | - Taner Demirci
- Department of Endocrinology and Metabolism, University of Health Sciences, Dıskapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
| | - Dilek Berker
- Department of Endocrinology and Metabolism, University of Health Sciences, Numune Training and Research Hospital, Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, University of Health Sciences, Dıskapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
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Sencar ME, Calapkulu M, Sakiz D, Unsal IO, Cayir D, Hepsen S, Kus A, Kizilgul M, Ucan B, Ozbek M, Cakal E. Residual Pyramidal Lobe Increases Stimulated Thyroglobulin and Decreases Endogenous Thyroid Stimulating Hormone Stimulation in Differentiated Thyroid Cancer Patients. Endocr Pract 2020; 27:212-215. [PMID: 33645511 DOI: 10.1016/j.eprac.2020.10.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 09/01/2020] [Accepted: 10/06/2020] [Indexed: 10/22/2022]
Abstract
OBJECTIVE To determine the frequency of pyramidal lobe remnants after total thyroidectomy (TT) and the effect on stimulated thyroglobulin (Tg). METHODS The study included 1740 differentiated thyroid cancer (DTC) patients who were followed up by our center. The department database was searched to identify DTC patients with residual pyramidal lobe after TT. All postoperative technetium-99m pertechnetate thyroid scintigraphy images were re-evaluated for pyramidal lobe residue. Serum stimulated Tg and thyroid stimulating hormone (TSH) levels measured within the first 6 months after TT were retrieved from the database. RESULTS Pyramidal lobe residue was detected in 10.4% of the patients who underwent TT. Evidence of the pyramidal lobe was present on preoperative ultrasonography in 1.6% of the patients with residual pyramidal lobe. Stimulated Tg in patients with pyramidal lobe residue was significantly higher than that in patients without residue (P = .01). Endogenous stimulated TSH in patients with residual pyramidal lobe was significantly lower than that in patients without residue (P = .036). In 5.7% of patients with pyramidal lobe residue, a TSH level of >30 mIU/L was not achieved, which was a significantly higher rate than that in patients without pyramidal lobe residue (P = .034) and is the level required for maximum radioiodine uptake. CONCLUSION Pyramidal lobe residue was found in almost 10% of DTC patients. The pyramidal lobe is often missed on preoperative ultrasonography. Residual pyramidal lobe increased stimulated Tg and decreased endogenous stimulated TSH. Residual pyramidal lobe may complicate the follow-up of DTC patients.
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Affiliation(s)
- Muhammed Erkam Sencar
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey.
| | - Murat Calapkulu
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Davut Sakiz
- Department of Endocrinology and Metabolism, Mardin Public Hospital, Mardin Turkey
| | - Ilknur Ozturk Unsal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Derya Cayir
- Department of Nuclear Medicine, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Sema Hepsen
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Arif Kus
- Department of Internal Medicine, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Muhammed Kizilgul
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Bekir Ucan
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Mustafa Ozbek
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
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Hepsen S, Akhanli P, Sencar ME, Duger H, Sakiz D, Kizilgul M, Ozturk Unsal I, Ucan B, Ozbek M, Cakal E. The Evaluation of Low- and High-Dose Steroid Treatments in Subacute Thyroiditis: A Retrospective Observational Study. Endocr Pract 2020; 27:594-600. [PMID: 34024631 DOI: 10.1016/j.eprac.2020.11.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 10/25/2020] [Accepted: 11/14/2020] [Indexed: 01/21/2023]
Abstract
OBJECTIVE The optimal steroid regimen in the treatment of subacute thyroiditis (SAT) is controversial. This study aims to compare low- and high-dose steroid regimens in the treatment of SAT. METHODS A single-center, retrospective observational cohort study with up to 1 year of follow-up was conducted. A total of 44 patients in the 16-mg methylprednisolone (MPS) group and 47 patients in the 48-mg MPS group were enrolled. Clinical and laboratory findings from the time of diagnosis to 1-year of the follow-up were assessed. Treatment response, recurrence, and hypothyroidism (HPT) rates were evaluated. RESULTS Clinical symptoms, sedimentation rates, C-reactive protein, and thyroid hormone levels of the patients were similar in the 2 groups. Recovery was achieved in all patients at the end of the treatments; however, treatment duration needed to be extended for 6 (13.6%) and 1 (2.1%) of the patients in the 16-mg and 48-mg MPS groups, respectively. The 48-mg MPS group had a higher SAT recurrence rate than the 16-mg MPS group (P = .04). Logistic regression analysis suggested that a lower thyroid-stimulating hormone level at the end of the treatment was a predictor of recurrence (β = -0.544, P = .014, 95% CI: 0.376-0.895). While the transient HPT rate was 10 (21.3%) and 10 (22.7%) in the 48-mg and 16-mg MPS groups, respectively, a permanent HPT developed in 5 (10.6%) of patients in the 48-mg MPS and 3 (6.8%) in the 16-mg MPS group. The permanent and transient HPT rates were determined to be similar in the low- and high-dose groups (P > .05). CONCLUSION Low-dose steroid therapy may be sufficient to achieve a complete recovery and better outcomes in SAT.
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Affiliation(s)
- Sema Hepsen
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey.
| | - Pinar Akhanli
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Muhammed Erkam Sencar
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Hakan Duger
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Davut Sakiz
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Muhammed Kizilgul
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Ilknur Ozturk Unsal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Bekir Ucan
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Mustafa Ozbek
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
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Akhanlı P, Hepsen S, Ucan B, Saylam G, Cakal E. HYPERCALCEMIC PATIENT DIAGNOSED WITH PRIMARY HYPERPARATHYROIDISM AFTER DAPAGLIFLOZIN TREATMENT. AACE Clin Case Rep 2020; 6:e319-e321. [PMID: 33244493 DOI: 10.4158/accr-2020-0113] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 07/20/2020] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE Hypercalcemia associated with the use of sodium-glucose transporter-2 (SGLT-2) inhibitors is very rare. Only 2 cases have been reported in the current literature. In these cases hypercalcemia occurred with the use of SGLT-2 inhibitors taken with thiazides and excessive calcium salts. We present a case of hypercalcemia and primary hyperparathyroidism diagnosed after dapagliflozin treatment. METHODS We describe the medical history, laboratory test results, parathyroid ultrasound, 4-dimensional computed tomography-magnetic resonance imaging, and histopathology findings of the patient. RESULTS A 49-year-old man with 5-year history of type 2 diabetes mellitus was found to have hypercalcemia with corrected calcium of 11.28 mg/dL (reference range [RR] is 8.8 to 10.6 mg/dL) 6 months after starting dapagliflozin. Previous records showed normocalcemia for many years. Parathyroid hormone level was 70.8 pg/mL (RR is 15 to 65 pg/mL) and 24-hour urinary calcium excretion level was 492 mg/day (RR is 100 to 300 mg/day). On parathyroid ultrasound, a 4 × 9 × 14-mm hypoechoic lesion inferior to the right thyroid lobe was detected. A 15 × 10 × 9-mm oval lesion was observed in the right paratracheal area. A lesion at T1 vertebra level was also seen on 4-dimensional computed tomography-magnetic resonance imaging. The patient underwent lower right parathyroidectomy. Histopathology confirmed the diagnosis of parathyroid adenoma. The patient was asymptomatic 3 months after the operation with a normal corrected calcium level of 9.2 mg/dL. CONCLUSIONS SGLT-2 inhibitors could have unmasked an underlying mild hyperparathyroidism, as they can increase predisposition to hypercalcemia when used with medications causing it. Volume depletion caused by SGLT-2 inhibitors may also contribute to hypercalcemia. For these reasons, calcium levels should be monitored in patients taking SGLT-2 inhibitors.
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Hepsen S, Akhanli P, Sakiz D, Sencar ME, Ucan B, Unsal IO, Cakal E, Ozbek M. The effects of patient and disease-related factors on the quality of life in patients with hypoparathyroidism. Arch Osteoporos 2020; 15:75. [PMID: 32430780 DOI: 10.1007/s11657-020-00759-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 05/11/2020] [Indexed: 02/07/2023]
Abstract
UNLABELLED This study aims to evaluate factors affecting the quality of life (QOL) of hypoparathyroidism. While QOL is reduced in post-surgical and non-surgical groups, mental health seems to be less affected in non-surgical patients. Having an additional disease affects QOL negatively but having thyroid cancer may not change the QOL results. PURPOSE Hypoparathyroidism (HypoPT) is an orphan disease, which causes physical, emotional, and cognitive problems. We aimed to estimate the factors affecting the quality of life (QOL) of HypoPT patients. METHODS Basal characteristics, treatments, and laboratory results of the participants were recorded. QOL of the patients and controls were evaluated via the Short Form-36 (SF-36) survey. RESULTS One hundred sixty HypoPT patients were compared with 148 controls. Patients had lower scores in all SF-36 domains than controls. Non-surgical patients had better scores in vitality and mental health compared with post-surgical ones. Males had higher scores in mental and physical health domains than females. Non-surgical patients had higher scores in mental health compared with post-surgical ones when calcium levels were between 8 and 8.9 mg/dL. When we compared the patients with the pathological results, QOL scores of post-surgical patients with thyroid cancer were not different from the patients with thyroid nodular hyperplasia. HypoPT patients having an additional disease presented lower scores in physical functions and general health. Disease duration was found out positively correlated with vitality in non-surgical patients. CONCLUSION While QOL is reduced in both post-surgical and non-surgical HypoPT groups, mental health seems to be less affected in non-surgical patients. Non-surgical patients might be tolerating hypocalcemia symptoms, lower calcium levels, and longer disease duration better than post-surgical ones. Having an additional disease affects the QOL negatively but having thyroid cancer may not change the QOL results of post-surgical patients.
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Affiliation(s)
- Sema Hepsen
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey.
| | - Pinar Akhanli
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Davut Sakiz
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Muhammed Erkam Sencar
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Bekir Ucan
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Ilknur Ozturk Unsal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Mustafa Ozbek
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
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Hepsen S, Sencar E, Sakiz D, Akhanli P, Ucan B, Unsal I, Ozbek M, Cakal E. Serum cortisol level after low dose dexamethasone suppression test may be predictive for diabetes mellitus and hypertension presence in obese patients: A retrospective study. Diabetes Res Clin Pract 2020; 161:108081. [PMID: 32068098 DOI: 10.1016/j.diabres.2020.108081] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 10/17/2019] [Accepted: 02/10/2020] [Indexed: 12/13/2022]
Abstract
AIMS Obesity, a remarkably increased healthcare problem, accompanies with morbidities including type 2 diabetes mellitus (DM), hypertension, and cardiovascular diseases. Hypothalamic-pituitary-adrenal (HPA) axis alteration is thought to be effective on the background of obesity, even concomitant with DM and hypertension. We aimed to evaluate the negative feedback mechanism of the HPA axis via overnight 1 mg dexamethasone suppression test (DST) and the association of post-1 mg DST cortisol level with DM and hypertension presence in obesity. METHODS This study consisted of 402 obese patients who provide suppression after DST. Post-1 mg DST cortisol level and its association with other variables including anthropometric measurements, laboratory test results, hypertension, prediabetes, and DM presence were evaluated. Predictivity of post-1 mg DST for hypertension and DM was investigated. RESULTS We established a significant difference in post-1 mg DST cortisol level when compared patients with and without DM, patients without DM and with prediabetes, patients with prediabetes and DM (p < 0.001 vs. p = 0.003 vs. p = 0.022 respectively). Post-1 mg DST cortisol level was significantly higher in hypertensive patients (p < 0.001). Post-1 mg DST cortisol level had positive correlation with age (r = 0.319, p < 0.001), fasting plasma glucose (r = 0.168, p = 0.001), and HbA1c (r = 0.278, p < 0.001) levels. Logistic regression analyses demonstrated that post-1 mg DST cortisol level is an independent predictor of DM and hypertension presence. CONCLUSION Cortisol negative feedback mechanism may be altered in obese patients who are complicated with hypertension and DM. Therefore, post-1 mg DST cortisol level can be predictive for hypertension and DM presence in obesity.
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Affiliation(s)
- Sema Hepsen
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey.
| | - Erkam Sencar
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Davut Sakiz
- Department of Endocrinology and Metabolism, Mardin State Hospital, Mardin, Turkey
| | - Pinar Akhanli
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Bekir Ucan
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Ilknur Unsal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Mustafa Ozbek
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
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Sencar ME, Sakiz D, Calapkulu M, Hepsen S, Kizilgul M, Ozturk IU, Ucan B, Bayram M, Cagir BB, Akin S, Ozbek M, Cakal E. The Effect of Exenatide on Thyroid-Stimulating Hormone and Thyroid Volume. Eur Thyroid J 2019; 8:307-311. [PMID: 31934556 PMCID: PMC6944867 DOI: 10.1159/000501895] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 06/19/2019] [Indexed: 01/03/2023] Open
Abstract
OBJECTIVE Glucagon-like peptide-1 (GLP-1) analogues are now widely used for the treatment of type 2 diabetes mellitus (DM). Many binding sites for GLP-1 have been demonstrated in the specific tissue compartments of organs in-cluding the brain and thyroid. The aim of this study was to investigate the effect of exenatide treatment on thyroid-stimulating hormone (TSH) and thyroid volume in diabetic patients without thyroid disease. MATERIAL AND METHODS The study included 46 diabetic patients without thyroid disease who were receiving exenatide treatment. Comparisons were made of total thyroid volume and serum concentrations of TSH at baseline and after 6 months of follow-up. RESULTS Of the 46 patients, 13 were excluded from the study, as they were unable to complete the treatment or left the follow-up process. After 6 months of exenatide treatment, the serum TSH concentration decreased significantly (from 2.3 [0.7-5.4] to 1.8 mIU/L [0.3-4.2], p= 0.007). There were no significant differences in thyroid volume (11.6 ± 9.0 vs. 12.1 ± 8.8 cm3, p = 0.19), free thyroxine (fT4), free tri-iodothyronine (fT3), and calcitonin levels before and after treatment. Thyroid volume was not affected by decreased TSH level (p:= 0.141) or a reduction in body mass index (BMI) (p > 0.05), and no correlation was detected between variation in TSH level and change in BMI (p > 0.05). CONCLUSIONS Exenatide treatment for 6 months significantly decreased serum TSH concentration but did not affect thyroid volume in diabetic patients without thyroid disease.
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Affiliation(s)
- Muhammed Erkam Sencar
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
- *Muhammed Erkam Sencar, MD, Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Sehit Omer Halisdemir Avenue, TR–06110 Ankara (Turkey), E-Mail
| | - Davut Sakiz
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Murat Calapkulu
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Sema Hepsen
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Muhammed Kizilgul
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Ilknur Unsal Ozturk
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Bekir Ucan
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Murat Bayram
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Busra Betul Cagir
- Department of Internal Medicine, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Safak Akin
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Mustafa Ozbek
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
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Sencar ME, Sakiz D, Unsal IO, Hepsen S, Calapkulu M, Gumus P, Ucan B, Ozbek M, Cakal E. Serum Vitamin D Level Does not Affect The Sensitivity of Parathyroid Adenoma Localization Tests. Sci Rep 2019; 9:12035. [PMID: 31427650 PMCID: PMC6700071 DOI: 10.1038/s41598-019-48536-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 08/07/2019] [Indexed: 11/09/2022] Open
Abstract
The aim of the present study was to evaluate the predictive value of 25-hydroxyvitamin D, calcium and parathormone level, co-existence of thyroid nodule, thyroidectomy history and adenoma volume on the success of neck ultrasound (US) and technetium-99m sestamibi (MIBI) scan in primary hyperparathyroidism (PHP) patients. This study included 256 patients with PHP who underwent parathyroidectomy. 169 (%66) patients had vitamin D deficiency and 56 (%22) of patients had insufficiency. The sensitivity of US and MIBI studies showed no difference between vitamin D deficiency, insufficiency and replete groups (%80.5, %82 and %71 (p > 0.05) and %81, %84 and %71 respectively (p > 0.05)). Vitamin D level was not found to be an independent predictor of localization on either US or MIBI scan after adjusting for different variables (p > 0.05). Calcium level was found to be an independent predictor for US sensitivity (r2:0,033, p:0,032) and parathormone level for MIBI sensitivity (r2:0,05, p:0,025). The co-existence of nodular thyroid disease and history of thyroidectomy significantly decreased the sensitivity of US (%76 and %43). MIBI sensitivity was not impaired by nodular disease but the history of thyroidectomy also impaired the sensitivity of MIBI (%43). As a result vitamin D level does not affect the sensitivity of preoperative localization tests.
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Affiliation(s)
- Muhammed Erkam Sencar
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey.
| | - Davut Sakiz
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Ilknur Ozturk Unsal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Sema Hepsen
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Murat Calapkulu
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Pelin Gumus
- Department of Internal Medicine, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Bekir Ucan
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Mustafa Ozbek
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
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Ucan B, Demirci T. Acromegaly. Journal of Health Sciences and Medicine 2019. [DOI: 10.32322/jhsm.485584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Abstract
Nodular thyroid disease is a very common disorder in patients with acromegaly. Insulin-like growth factor-1 (IGF-1) is a thyroid growth factor, and there is a correlation between IGF-1 levels and thyroid volume (TV) in patients with acromegaly. There is no study investigating the impact of somatostatin analog (SSA) treatment on thyroid nodule volume in patients with acromegaly. We aimed to assess thyroid nodule volume change with SSA treatment in patients with persistent acromegaly. We retrospectively analyzed data from 108 consecutive patients with acromegaly who were followed up by our clinic after undergoing surgery between 2002 and 2014. Patients who were cured after surgery were excluded. We only selected 43 patients (21 males, 22 females, mean age 52.8 ± 11.9 years) who did not meet the criteria of remission postoperatively, who were treated with SSA for at least six months and had normal thyroid function. Patients were divided into three groups (well-controlled, controlled, and active) according to their IGF-1 and growth hormone (GH) levels. All patients underwent an evaluation of TV and total thyroid nodule volume (TTNV) by ultrasound. TTNV decreased significantly in patients with well-controlled acromegaly (0.44 [0.75] to 0.23 [0.73], p < 0.001). TTNV did not change in controlled patients (0.18 [1.28] to 0.13 [1.54], p = 0.959); however TTNV increased in patients with active acromegaly (0.77 [1.46] to 1.03 [1.88], p = 0.028). Successful medical treatment of patients with active acromegaly decreases thyroid nodule volume. Sustained exposure to IGF-1 may cause an increase in thyroid nodule volume in patients with acromegaly.
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Affiliation(s)
- Seyfullah Kan
- Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - Muhammed Kizilgul
- Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - Bulent Celik
- Department of Statistics, Gazi University, Faculty of Science, Ankara, Turkey
| | - Selvihan Beysel
- Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - Mustafa Caliskan
- Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - Mahmut Apaydin
- Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - Bekir Ucan
- Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital, Ankara, Turkey
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Araz M, Cayir D, Ucan B, Dilli A, Çakal E. Clinical Significance of Incidental Pituitary TC-99m MIBI Uptake on Parathyroid Spect and Factors Affecting Uptake Intensity. Cancer Biother Radiopharm 2018; 33:295-299. [PMID: 29924654 DOI: 10.1089/cbr.2017.2433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVE (1)To define a quantitative cutoff value for incidental pituitary Technetium-99m methoxyisobutylisonitrile (Tc-99m MIBI) uptake above which is of clinical importance and (2) to investigate possible factors affecting the intensity of uptake in pituitary adenoma. MATERIALS AND METHODS A retrospective analysis of 55 patients with a simultaneous parathyroid single-photon emission computed tomography and pituitary magnetic resonance imaging were included. Twenty-four patients with pituitary adenoma were chosen as the study group and 31/55 patients who had no signs of a pituitary adenoma were included in the control group. Mean count values (count/pixel) for pituitary region of interest (ROI)/mean value for normal cortical region ROI (P/C) were calculated in both groups. Median P/C values were compared. A cutoff value for P/C was calculated as a quantitative parameter to indicate pituitary tumors. Possible contributing factors in intensity of pituitary Tc-99m MIBI uptake were investigated. RESULTS Median P/C ratios were significantly higher in the study group (p < 0.001). A cutoff value of 7.675 was found for P/C to have a sensitivity, spesificity, positive predictive value, and negative predictive value 100%, 96.8%, 96%, and 100%, respectively. There was no correlation between investigated factors and degree of pituitary Tc-99m MIBI uptake. CONCLUSIONS Incidental pituitary Tc-99m MIBI uptake values above 7.675 for P/C are suspicious for pituitary adenoma and can be further investigated clinically and radiologically. Tc-99m MIBI uptake is not affected from the biochemical nature of the adenoma, the therapies received, size, local invasion, or cystic necrotic component of the tumor.
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Affiliation(s)
- Mine Araz
- 1 Nuclear Medicine Department, UHS Diskapi Yildirim Beyazit Training and Research Hospital , Ankara, Turkey
| | - Derya Cayir
- 1 Nuclear Medicine Department, UHS Diskapi Yildirim Beyazit Training and Research Hospital , Ankara, Turkey
| | - Bekir Ucan
- 2 Endocrinology and Metabolism Department, UHS Diskapi Yildirim Beyazit Training and Research Hospital , Ankara, Turkey
| | - Alper Dilli
- 3 Radiology Department, UHS Diskapi Yildirim Beyazit Training and Research Hospital , Ankara, Turkey
| | - Erman Çakal
- 2 Endocrinology and Metabolism Department, UHS Diskapi Yildirim Beyazit Training and Research Hospital , Ankara, Turkey
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Kizilgul M, Sencar E, Ucan B, Beysel S, Ozcelik O, Ozbek M, Cakal E. Components of the Complete Blood Count in Type 2 Diabetes Mellitus with Inadequate Glycemic Control. Dicle Tıp Dergisi 2018. [DOI: 10.5798/dicletip.410811] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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Abstract
BACKGROUND This retrospective study investigated the effect of adding metformin to pharmacologic insulin dosing in type 1 diabetics on insulin therapy 1 year after treatment compared with patients on insulin therapy alone. METHODS Twenty-nine adults with type 1 diabetes who had metformin added to their insulin therapy for 12 months were compared with 29 adults with type 1 diabetes who remained on insulin-alone therapy. RESULTS Fifty-eight patients with C peptide negative-type 1 diabetics (26 females, mean age: 29.01 ± 7.03 years, BMI: 24.18 ± 3.16 kg/m2) were analyzed. Age, sex, body weight, insulin dose requirement, plasma glucose (PG), blood pressure (BP), and lipids did not differ between groups before treatment (p > 0.05). Metabolic syndrome (44.8 vs 41.4%, p > 0.05) did not differ between the metformin-insulin and insulin alone groups before treatment. Metabolic syndrome was more decreased in the metformin-insulin group than in the insulin alone group after treatment (-8.9 ± 1.3 vs. 2.5 ± 0.6%, p = 0.028). Insulin dose requirement was lower in the metformin-insulin group than in the insulin alone group (-0.03 vs. 0.11 IU/kg/d, p = 0.006). Fasting PG (-26.9 ± 54.2 vs. 0.7 ± 29.5 mg/dL, p = 0.022) and postprandial PG (-43.1 ± 61.8 mg/dL vs. -3.1 ± 40.1 mg/dL, p = 0.010) was more decreased in the metformin-insulin group than in the insulin alone group. Body weight, lipids, and HbA1c did not differ between the groups (p > 0.05). CONCLUSIONS Metformin decreased glucose concentrations, reduced metabolic syndrome, as well as insulin dose requirement more than insulin therapy alone, 1 year after treatment. These results were independent of blood lipid improvement or weight loss, although on average weight remained decreased with metformin-insulin therapy, whereas the average weight increased with insulin therapy alone.
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Affiliation(s)
- Selvihan Beysel
- Department of Endocrinology and Metabolism, Eskisehir State Hospital, Eskisehir, Turkey
- Department of Medical Biology, Baskent University, Ankara, Turkey
| | - Ilknur Ozturk Unsal
- Department of Endocrinology and Metabolism, Ankara Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - Muhammed Kizilgul
- Department of Endocrinology and Metabolism, Kilis State Hospital, Kilis, Turkey
| | - Mustafa Caliskan
- Department of Endocrinology and Metabolism, Duzce Ataturk State Hospital, Duzce, Turkey
| | - Bekir Ucan
- Department of Endocrinology and Metabolism, Ankara Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, Ankara Diskapi Teaching and Research Hospital, Ankara, Turkey
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Kizilgul M, Ozcelik O, Beysel S, Akinci H, Kan S, Ucan B, Apaydin M, Cakal E. Screening for celiac disease in poorly controlled type 2 diabetes mellitus: worth it or not? BMC Endocr Disord 2017; 17:62. [PMID: 28985731 PMCID: PMC5639597 DOI: 10.1186/s12902-017-0212-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Accepted: 10/02/2017] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Recent studies have demonstrated that immune factors might have a role in the pathophysiology of insulin resistance and type 2 diabetes mellitus (T2DM). Inappropriate glycemic control in patients with T2DM is an important risk factor for the occurrence of diabetes complications. The prevalence of celiac disease (CD) is high in type 1 diabetes mellitus however, there are scarce data about its prevalence in T2DM. Our aim was to investigate the prevalence of celiac disease among insulin-using type 2 diabetes patients with inappropriate glycemic control. METHODS IgA tissue transglutaminase antibodies (tTGA IgA) test was performed as a screening test. A total of 135 patients with T2DM whose control of glycemia is inappropriate (HbAlc value >7%) in spite of using insulin treatment for at least 3-months (only insulin or insulin with oral antidiabetic drugs) and 115 healthy controls were enrolled in the study. Upper gastrointestinal endoscopy with duodenal biopsy was performed to all patients with raised tTGA IgA or selective lgA deficiency. RESULTS Gender, age, body mass index (BMI) and tTGA IgA, kreatinin, calcium, LDL-cholesterol (LDL-C), total cholesterol, 25-OH vitamin D3 levels were similar between groups. Systolic and diastolic blood pressure, waist circumference, fasting plasma glucose, postprandial plasma glucose, urea, sodium, HbA1c, LDL-C, triglyceride, vitamin B12 levels were significantly higher in DM group (p < 0.0001). BMI, high-sensitive CRP, microalbuminuria, and AST, ALT, potassium, phosphorus levels were significantly higher in the T2DM group (p < 0.05). HDL-cholesterol and parathormone levels were significantly lower in the T2DM group (p < 0.05). Two of the 135 patients with T2DM were diagnosed with CD (1.45%). CONCLUSIONS The prevalence of celiac disease among patients with type 2 diabetes, with poor glycemic control despite insulin therapy, is slightly higher than the actual CD prevalence in general population. Type 2 diabetic patients with inappropriate control of glycemia in spite of insulin treatment might be additionally tested for Celiac disease especially if they have low C-peptide levels.
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Affiliation(s)
- Muhammed Kizilgul
- Department of Endocrinology and Metabolism, Diskapi Training and Research Hospital, Ankara, Turkey
- Schulze Diabetes Institute, University of Minnesota, Minneapolis, MN USA
| | - Ozgur Ozcelik
- Department of Endocrinology and Metabolism, Diskapi Training and Research Hospital, Ankara, Turkey
| | - Selvihan Beysel
- Department of Endocrinology and Metabolism, Diskapi Training and Research Hospital, Ankara, Turkey
| | - Hakan Akinci
- Department of Gastroenterology, Diskapi Training and Research Hospital, Ankara, Turkey
| | - Seyfullah Kan
- Department of Endocrinology and Metabolism, Diskapi Training and Research Hospital, Ankara, Turkey
| | - Bekir Ucan
- Department of Endocrinology and Metabolism, Diskapi Training and Research Hospital, Ankara, Turkey
| | - Mahmut Apaydin
- Department of Endocrinology and Metabolism, Diskapi Training and Research Hospital, Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, Diskapi Training and Research Hospital, Ankara, Turkey
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Ucan B, Sahin M, Kizilgul M, Ozbek M, Ozdemir S, Calıskan M, Cakal E. Serum ghrelin levels in papillary thyroid carcinoma. Arch Endocrinol Metab 2017; 61:464-469. [PMID: 28977162 PMCID: PMC10522255 DOI: 10.1590/2359-3997000000290] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 05/15/2017] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Ghrelin plays a role in several processes of cancer progression, and numerous cancer types express ghrelin and its receptor. We aimed to investigate serum levels of ghrelin in patients with papillary thyroid carcinoma (PTC) and its association with the prognostic factors in PTC. MATERIALS AND METHODS We enrolled 54 patients with thyroid cancer (7 male, 47 female) and 24 healthy controls (6 male, 18 female) in the study. We compared demographic, anthropometric, and biochemical data, and serum ghrelin levels between the groups. Serum ghrelin levels were measured using as enzyme-linked immunosorbent assay. RESULTS Ghrelin levels were similar between the groups, but plasma ghrelin levels were significantly higher in tumors larger than 1 cm diameter compared with papillary microcarcinomas. Serum ghrelin levels also correlated with tumor size (r = 0.499; p < 0.001). Body mass index, thyroid-stimulating hormone, and HOMA-IR levels were similar between the groups. There were no statistically significant differences regarding average age and other prognostic parameters including lymph node invasion, capsule invasion, multifocality and surgical border invasion between patients with microcarcinoma and tumors larger than 1 cm. CONCLUSION In our study, no significant difference in serum ghrelin levels was determined between patients with papillary thyroid cancer and healthy controls however, serum ghrelin levels were higher in tumors larger than 1 cm compared to in those with thyroid papillary microcarcinoma.
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Affiliation(s)
- Bekir Ucan
- SBU Diskapi Yildirim Beyazit Training and Research HospitalDepartment of Endocrinology and MetabolismAnkaraTurkeySBU Diskapi Yildirim Beyazit Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Mustafa Sahin
- Ankara UniversitySchool of MedicineDepartment of Endocrinology and MetabolismAnkaraTurkeyAnkara University, School of Medicine, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Muhammed Kizilgul
- SBU Diskapi Yildirim Beyazit Training and Research HospitalDepartment of Endocrinology and MetabolismAnkaraTurkeySBU Diskapi Yildirim Beyazit Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Mustafa Ozbek
- SBU Diskapi Yildirim Beyazit Training and Research HospitalDepartment of Endocrinology and MetabolismAnkaraTurkeySBU Diskapi Yildirim Beyazit Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Seyda Ozdemir
- SBU Diskapi Yildirim Beyazit Training and Research HospitalDepartment of BiochemistryAnkaraTurkeySBU Diskapi Yildirim Beyazit Training and Research Hospital, Department of Biochemistry, Ankara, Turkey
| | - Mustafa Calıskan
- SBU Diskapi Yildirim Beyazit Training and Research HospitalDepartment of Endocrinology and MetabolismAnkaraTurkeySBU Diskapi Yildirim Beyazit Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Erman Cakal
- SBU Diskapi Yildirim Beyazit Training and Research HospitalDepartment of Endocrinology and MetabolismAnkaraTurkeySBU Diskapi Yildirim Beyazit Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
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Abstract
BACKGROUND Vitamin D deficiency is a common health problem worldwide. Many parts of the human eye, including the epithelium of the cornea, lens, ciliary body, and retinal pigment epithelium, as well as the corneal endothelium, ganglion cell layer, and retinal photoreceptors, contain vitamin D receptor (VDR). Dry eye is also a common health problem. An adequate tear film is required for maintaining health and function of the eye. Tear hyperosmolarity is considered to be the cause of ocular surface inflammation, symptoms, and tissue damage. It is well-documented that vitamin D has an anti-inflammatory action. We aimed to investigate the effect of vitamin D replacement on tear osmolarity in patients with vitamin D deficiency. METHODS A total of 44 patients (38 females, six males, mean age:43.5 ± 12.8 years) with vitamin D deficiency currently managed by the Endocrinology and Metabolism Department of Diskapi Training and Research Hospital in Turkey were enrolled in the study. Patients were given 50,000 units of 25(OH)D3 intramuscularly, once weekly, over a period of eight weeks. All of the patients underwent tear function osmolarity (TFO) measurement initially and eight weeks after vitamin D replacement. Demographic, anthropometric, and biochemistry data of patients were recorded. RESULTS The mean TFO was significantly decreased (313.7 ± 17.3 mOsm/L; 302.7 ± 14.2 mOsm/L, p<0.001) at the end of the second month; 25(OH)D3 concentrations increased from 8.3 ± 3.5 ng/mL to 68.8 ± 22.3 ng/mL (p<0.001). The mean levels of hsCRP, FPG, P were 2.5 ± 2.5 mg/L, 5.09 ± 0.48 mmol/L, 1.06 ± 0.16 mmol/L initially, and 3.8 ± 5.9 mg/L, 5.11 ± 0.68 mg/dL, 1.09 ± 0.16 mmol/L after vitamin D replacement, respectively (p>0.05). The mean Ca level was 2.37 ± 0.07 mmol/L initially and 2.35 ± 0.07 mmol/L after vitamin D replacement (p<0.05). The change of TFO was negatively correlated with the variation of 25(OH)D3 before and after replacement in patients with dry eye disease (r=-0.390, p=0.049). CONCLUSIONS As a consequence of the presence of VDR and 1α-hydroxylase in different parts of the eye, vitamin D replacement improves tear hyperosmolarity that is considered to be induced by ocular surface inflammation.
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Affiliation(s)
- Muhammed Kizilgul
- a Department of Endocrinology and Metabolism , Diskapi Training and Research Hospital , Ankara , Turkey.,b Schulze Diabetes Institute , University of Minnesota , Minneapolis , Minnesota , USA
| | - Seyfullah Kan
- a Department of Endocrinology and Metabolism , Diskapi Training and Research Hospital , Ankara , Turkey
| | - Ozgur Ozcelik
- a Department of Endocrinology and Metabolism , Diskapi Training and Research Hospital , Ankara , Turkey
| | - Selvihan Beysel
- a Department of Endocrinology and Metabolism , Diskapi Training and Research Hospital , Ankara , Turkey
| | - Mahmut Apaydin
- a Department of Endocrinology and Metabolism , Diskapi Training and Research Hospital , Ankara , Turkey
| | - Bekir Ucan
- a Department of Endocrinology and Metabolism , Diskapi Training and Research Hospital , Ankara , Turkey
| | - Erman Cakal
- a Department of Endocrinology and Metabolism , Diskapi Training and Research Hospital , Ankara , Turkey
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Ucan B, Sahin M, Sayki Arslan M, Colak Bozkurt N, Kizilgul M, Güngünes A, Cakal E, Ozbek M. Vitamin D Treatment in Patients with Hashimoto's Thyroiditis may Decrease the Development of Hypothyroidism. INT J VITAM NUTR RES 2017; 86:9-17. [PMID: 28697689 DOI: 10.1024/0300-9831/a000269] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The relationship between Hashimoto's thyroiditis and vitamin D has been demonstrated in several studies. The aim of the present study was to evaluate vitamin D concentrations in patients with Hashimoto's thyroiditis, the effect of vitamin D therapy on the course of disease, and to determine changes in thyroid autoantibody status and cardiovascular risk after vitamin D therapy. We included 75 patients with Hashimoto's thyroiditis and 43 healthy individuals. Vitamin D deficiency is defined as a 25-hydroxy vitamin D (25(OH)D3) concentration less than 20ng/mL. Vitamin D deficient patients were given 50.000 units of 25(OH)D3 weekly for eight weeks in accordance with the Endocrine Society guidelines. All evaluations were repeated after 2 months of treatment. Patients with Hashimoto's thyroiditis had significantly lower vitamin D concentrations compared with the controls (9.37±0.69 ng/mL vs 11.95±1.01 ng/mL, p < 0.05, respectively). Thyroid autoantibodies were significantly decreased by vitamin D replacement treatment in patients with euthyroid Hashimoto's thyroiditis. Also, HDL cholesterol concentrations improved in the euthyroid Hashimoto group after treatment. The mean free thyroxine (fT4) concentrations were 0.89±0.02 ng/dL in patients with Hashimoto's thyroiditis and 1.07±0.03 ng/dL in the healthy control group (p < 0.001). The mean thyroid volumes were 7.71±0.44 mL in patients with Hashimoto's thyroiditis and 5.46±0.63 mL in the healthy control group (p < 0.01). Vitamin D deficiency is frequent in Hashimoto's thyroiditis and treatment of patients with this condition with Vitamin D may slow down the course of development of hypothyroidism and also decrease cardiovascular risks in these patients. Vitamin D measurement and replacement may be critical in these patients.
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Affiliation(s)
- Bekir Ucan
- 1 Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - Mustafa Sahin
- 2 Department of Endocrinology and Metabolism, Ankara University, School of Medicine, Ankara, Turkey
| | - Muyesser Sayki Arslan
- 1 Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - Nujen Colak Bozkurt
- 1 Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - Muhammed Kizilgul
- 1 Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - Askin Güngünes
- 1 Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - Erman Cakal
- 1 Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - Mustafa Ozbek
- 1 Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital, Ankara, Turkey
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Kizilgul M, Beysel S, Ozcelik O, Kan S, Apaydin M, Caliskan M, Ucan B, Sencar E, Ozdemir S, Cakal E. PENTRAXIN 3 AS A NEW CARDIOVASCULAR MARKER IN ADRENAL ADENOMAS. Endocr Pract 2017; 23:662-668. [PMID: 28332877 DOI: 10.4158/ep161713.or] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
OBJECTIVE Pentraxin 3 (PTX3) is an acute-phase glycoprotein, which is increased in patients with cardiovascular disease (CVD) and considered as a predictor of CVD in the general population. Both functional and nonfunctional adrenal tumors are associated with a higher risk of cardiovascular events and mortality. We aimed to investigate plasma PTX3 levels in patients with functioning and nonfunctioning adrenal tumors and determine its relationship with cardiovascular risk factors. METHODS Twenty-one patients with functional adrenal tumors (11 pheochromocytomas, 9 Cushing syndrome, and 1 primary hyperaldosteronism), 28 patients with nonfunctional adrenal incidentalomas, and 40 healthy controls were enrolled in the study. Serum PTX3 levels were measured using a human PTX3 enzyme-linked immunosorbent assay. RESULTS PTX3 concentrations were significantly higher in the adrenal tumor group compared with the control group (3,001.64 ± 374.64 pg/mL vs. 1,173.59 ± 168.89 pg/mL; P<.001). PTX3 concentrations were positively correlated with carotid intima media thickness (CIMT) (r2, 0.464; P<.001), high-sensitivity C-reactive protein (hsCRP) (r2, 0.551; P<.001), diastolic blood pressure (r2, 0.334; P = .003), systolic blood pressure (r2, 0.312; P = .006), and urinary metanephrine concentrations (r2, 0.320; P = .041). Serum PTX3 concentrations in patients with functional adrenal tumors and comorbidities including hypertension, diabetes mellitus, or CVD were higher than in those without comorbidities (3,654.54 ± 447 pg/mL vs. 1,026.96 ± 447.97 pg/mL; P = .008). CONCLUSION We found that serum PTX3 concentrations increased in both functional and nonfunctional adrenal tumors. PTX3 levels were correlated with cardiovascular risk factors such as CIMT, hsCRP, and blood pressure. ABBREVIATIONS BMI = body mass index; CIMT = carotid intima-media thickness; CRP = C-reactive protein; CT = computed tomography; CVD = cardiovascular disease; FGF2 = fibroblast growth factor 2; hsCRP = high-sensitivity C-reactive protein; PA = primary hyperaldosteronism; PTX3 = pentraxin 3.
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Arslan MS, Tutal E, Sahin M, Karakose M, Ucan B, Ozturk G, Cakal E, Biyikli Gencturk Z, Ozbek M, Delibasi T. Effect of lifestyle interventions with or without metformin therapy on serum levels of osteoprotegerin and receptor activator of nuclear factor kappa B ligand in patients with prediabetes. Endocrine 2017; 55:410-415. [PMID: 27743302 DOI: 10.1007/s12020-016-1121-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 09/07/2016] [Indexed: 01/20/2023]
Abstract
Osteoprotegerin has been shown to be increased in cardiovascular disorders and type 2 diabetes mellitus. Prediabetes represents a high risk condition for diabetes and diabetic complications. Therefore, we aimed to find the relationship between prediabetes and osteoprotegerin with nuclear factor-B ligand, carotid intima media thickness, and metabolic markers. A total of 54 participants with prediabetes including impaired fasting glucose (n = 21), impaired glucose tolerance (n = 8), impaired fasting glucose and impaired glucose tolerance (n = 25), and 60 healthy individuals as a control were admitted to the study. Metabolic and anthropometric parameters, insulin resistance variables, osteoprotegerin, and nuclear factor-B ligand markers, carotid intima media thickness were examined at baseline for all participants. To evaluate the effect of therapy we determined the same parameters after the end of the study. Measurements of waist circumference, body mass index, body fat percentage and levels of fasting blood glucose, fasting insulin, homeostatic model assessment of insulin resistance, triglyceride levels and hsCRP and carotid intima media thickness were significantly higher in patients with prediabetes (p < 0.05). We also found higher osteoprotegerin and lower nuclear factor-B ligand levels in patients than in controls however, the value was non-significant (p > 0.05). Patients with prediabetes were under lifestyle interventions with (group 1, n = 33) or without metformin (group 2, n = 21) therapy. Baseline anthropometric and metabolic characteristics were not found statistically different in group 1 and group 2. Mean follow up period of the patients were 7.9 ± 2.2 month (min-max: 6-12 months). After the follow up period we evaluated the same parameters and found significant differences between waist circumference, body mass index, body fat percentage, fasting insulin, homeostatic model assessment of insulin resistance, and osteoprotegerin levels (p < 0.05). However, carotid intima media thickness, and nuclear factor-B ligand levels significantly different only in the group treated with metformin (p < 0.05). We also compared the variables after the treatment period with the control group and found significantly lower levels in terms of fasting insulin, homeostatic model assessment of insulin resistance, waist circumference, body mass index, body fat percentage, carotid intima media thickness, osteoprotegerin, and nuclear factor-B ligand values (p < 0.05). Correlation analysis revealed a negative relationship between nuclear factor-B ligand and body mass index, and body fat percentage in group 1 (p = 0.05, r = -0.646, p = 0.01, r = -0.585). Therapy of prediabetes was associated with a significant decrease in osteoprotegerin and certain metabolic variables together with an increase in nuclear factor-B ligand levels particularly in patients with under metformin therapy.
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Affiliation(s)
- Muyesser Sayki Arslan
- Diskapi Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey.
| | - Esra Tutal
- Diskapi Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Mustafa Sahin
- School of Medicine, Department of Endocrinology and Metabolism, Ankara University, Ankara, Turkey
| | - Melia Karakose
- Diskapi Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Bekir Ucan
- Diskapi Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Gulfer Ozturk
- Diskapi Training and Research Hospital, Department of Biochemistry, Ankara, Turkey
| | - Erman Cakal
- Diskapi Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | | | - Mustafa Ozbek
- Diskapi Training and Research Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - Tuncay Delibasi
- Department of Internal Medicine, School of Medicine (Kastamonu), Hacettepe University, Ankara, Turkey
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Arslan MS, Sahin M, Karakose M, Tutal E, Topaloglu O, Ucan B, Demirci T, Caliskan M, Ozdemir S, Ozbek M, Cakal E. SERUM LEVELS OF FIBROBLAST GROWTH FACTOR-23, OSTEOPROTEGERIN, AND RECEPTOR ACTIVATOR OF NUCLEAR FACTOR KAPPA B LIGAND IN PATIENTS WITH PROLACTINOMA. Endocr Pract 2016; 23:266-370. [PMID: 27849387 DOI: 10.4158/ep161440.or] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The aim of this study to was to evaluate the effect of fibroblast growth factor-23 (FGF-23), osteoprotegerin (OPG), receptor activator nuclear κB ligand (RANKL), and vitamin D hormones on bone loss in patients with hyperprolactinemia due to pituitary prolactinoma. METHODS We recruited 46 premenopausal female patients with prolactinoma and age and sex-matched healthy controls (Group 3, n = 20) for this cross-sectional study. Prolactinoma patients were divided into 2 groups as patients newly diagnosed (Group 1, n = 26) and those under cabergoline treatment (Group 2, n = 20). Anthropometric and metabolic variables; hormonal profiles; and osteocalcin, deoxypyridinoline (DOP), and bone mineral density measurements were performed for all participants. FGF-23, OPG, and RANKL levels were analyzed in all groups. RESULTS FGF-23, OPG, calcium, phosphorus, and parathormone levels were similar between all groups despite significantly higher levels in the control group in terms of vitamin D and RANKL levels than in patients. Bone loss was found more in Group 2, particularly observed in Z scores of femur and spinal bone (P<.05). Correlation analysis revealed a negative correlation between FGF-23 and femur neck T score (r = -0.0433, P = .05) in patients with active prolactinoma. A positive correlation was also observed between parameters of DOP and OPG (r = 0.673, P = .02). In patients with remission there were a negative correlation between prolactin and luteinizing hormone (r = -600, P = .08). Additionally, a negative correlation was found between osteocalcin and osteoprotegerin in patients in remission (r = -0.73, P = .01). CONCLUSION Our data indicated that FGF-23 and OPG levels do not play a critical role on the development of bone decrease in patients with hyperprolactinemia. However, further prospective studies in larger numbers of participants should be designed to clarify this issue. ABBREVIATIONS BFP = body fat percentage BMD = bone mineral density BMI = body mass index CV = coefficient of variation DOP = deoxypyridinoline ELISA = enzyme-linked immunosorbent assay FGF-23 = fibroblast growth factor-23 HOMA-IR = homeostatic model assessment of insulin resistance OPG = osteoprotegerin RANKL = receptor activator nuclear κB ligand.
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Ozbek M, Gungunes A, Sahin M, Ginis Z, Ucan B, Sayki M, Tutal E, Cakal E, Kuşkonmaz SM, Öztürk MA, Delibasi T. Serum heart type fatty acid binding protein levels are not changed in hyperthyroidism. MINERVA ENDOCRINOL 2016; 41:298-301. [PMID: 26859315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
BACKGROUND Heart type fatty acid binding protein (H-FABP) is a small protein and released into the circulation when myocardial damage has occurred. Previous studies have demonstrated that H-FABP is closely associated with cardiac and some endocrinologic disorders including prediabetes, metabolic syndrome, and acromegaly. Hyperthyroism is a well-known disorder associated with cardiovascular diseases. We aimed to investigate the effect of hyperthyrodism on H-FABP levels. METHODS Forty six patients with hyperthyroidism with no known history of coronary artery disease and 40 healthy controls are involved in the study. Serum H-FABP levels are measured using sandwich enzyme-linked immunosorbent assay. RESULTS There was no significant difference between serum H-FABP levels of patients with hyperthyroidism and controls (871±66 pg/mL, and 816±66 pg/mL, respectively P=0.56). There was no significant correlation between H-FABP, free triiodothyronine (fT3), free thyroxine (fT4), and thyroid stimulating hormone (TSH) levels in patients and controls. CONCLUSIONS Serum H-FABP levels are not altered in patients with hyperthyroidism.
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Affiliation(s)
- Mustafa Ozbek
- Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital, Ankara, Turkey -
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Arslan MS, Ozbek M, Karakose M, Tutal E, Ucan B, Yilmazer D, Dilli A, Gultekin SS, Cakal E, Delibasi T. Transformation of nonfunctioning pancreatic tumor into malignant insulinoma after 3 years: an uncommon clinical course of insulinoma. Arch Endocrinol Metab 2016; 59:270-2. [PMID: 26154097 DOI: 10.1590/2359-3997000000049] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Accepted: 01/14/2015] [Indexed: 11/22/2022]
Abstract
A 62-year-old man admitted to our outpatient clinic with two months of recurrent life threatening hypoglycemia episodes. He was diagnosed as malignant insulinoma with multiple metastases of liver and peripancreatic lymph nodes. Liver biopsy specimen was demonstrated grade 2 neuroendocrine tumor compatible with clinical and radiological results. He was followed under the treatment of continuous intravenous glucose infusion during the diagnostic procedures. He had a pancreatic lesion history measured 20 x 12 mm in diameter via the abdominal tomography examination approximately two years before the diagnosis. Unusual course of this case suggests the transformation of nonfunctioning pancreatic neuroendocrine tumor into functional insulin secreting tumor with metastases. The patient was found inoperable and started on chemotherapy.
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Affiliation(s)
- Muyesser Sayki Arslan
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Mustafa Ozbek
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Melia Karakose
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Esra Tutal
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Bekir Ucan
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Demet Yilmazer
- Department of Pathology, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Alper Dilli
- Department of Radiology, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Salih Sinan Gultekin
- Department of Nuclear Medicine, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Tuncay Delibasi
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
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Kizilgul M, Sencar E, Ucan B, Ozbek M, Cakal E. Letter to the Editor: Possible Decrease in GIP Levels May Explain Increased Plasma Dipeptidyl Peptidase-4 Activity-Associated Osteoporosis. J Clin Endocrinol Metab 2015; 100:L128-9. [PMID: 26642272 DOI: 10.1210/jc.2015-3397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Muhammed Kizilgul
- Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital, 06330 Ankara, Turkey
| | - Erkam Sencar
- Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital, 06330 Ankara, Turkey
| | - Bekir Ucan
- Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital, 06330 Ankara, Turkey
| | - Mustafa Ozbek
- Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital, 06330 Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital, 06330 Ankara, Turkey
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Yilmaz H, Ucan B, Sayki M, Unsal I, Sahin M, Ozbek M, Delibasi T. Usefulness of the neutrophil-to-lymphocyte ratio to prediction of type 2 diabetes mellitus in morbid obesity. Diabetes Metab Syndr 2015; 9:299-304. [PMID: 25470646 DOI: 10.1016/j.dsx.2014.04.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND There is growing consensus in the literature that inflammation plays a central role in the pathophysiology of obesity and type 2 diabetes mellitus (T2DM) and cardiovascular complications. Neutrophil-to-lymphocyte ratio (NLR) provides a simple method for assessment of inflammatory status and it is a new, inexpensive marker. The aim of the present study was to investigate the predictive value of preprocedural (before the OGTT) NLR on development of type 2 diabetes (T2DM) in morbid obesity patients (MOP). METHODS 306 MOP (body mass index ≥ 40 kg/m(2)) and 95 normal weight patients with normal OGTT [fasting plasma glucose (FPG)<100mg/dL. Two-hour glucose during OGTT<140 mg/dL] were evaluated in this study. RESULTS The mean ± SD NLR of MOP was significantly higher than that of patients with normal weight healthy patients (3.67 ± 0.95 vs. 1.82 ± 1.02, P<0.001, respectively). In receiver operating characteristics curve analysis, NLR>3.12 had 79.2% sensitivity and 64.9% specificity in predicting T2DM. Logistic regression analysis showed that elevated NLR (OR: 2.577, 95% CI: 1.363-4.872, P=0.004) was an independent variable for predicting T2DM in MOP. CONCLUSIONS MOP have higher NLR than healthy controls. High NLR is a powerful and independent predictor of T2DM in MOP. Elevated NLR levels are usually considered as an inflammatory marker. The results of this study suggested that inflammation plays a role in the pathogenesis of T2DM with MOP.
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Affiliation(s)
- H Yilmaz
- Turgut Ozal University School of Medicine, Department of Internal Medicine, Turkey.
| | - B Ucan
- Dışkapı Yıldırım Beyazıt Education and Researching Hospital, Department of Endocrinology and Metabolism, Turkey
| | - M Sayki
- Dışkapı Yıldırım Beyazıt Education and Researching Hospital, Department of Endocrinology and Metabolism, Turkey
| | - I Unsal
- Dışkapı Yıldırım Beyazıt Education and Researching Hospital, Department of Endocrinology and Metabolism, Turkey
| | - M Sahin
- Dışkapı Yıldırım Beyazıt Education and Researching Hospital, Department of Endocrinology and Metabolism, Turkey
| | - M Ozbek
- Dışkapı Yıldırım Beyazıt Education and Researching Hospital, Department of Endocrinology and Metabolism, Turkey
| | - T Delibasi
- Dışkapı Yıldırım Beyazıt Education and Researching Hospital, Department of Endocrinology and Metabolism, Turkey
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Kizilgul M, Kan S, Ucan B, Cakal E, Delibasi T. Letter to the Editor: Ceasing in Renal Function Deterioration After Parathyroidectomy: The Possible Hypotheses. J Clin Endocrinol Metab 2015; 100:L76. [PMID: 26339741 DOI: 10.1210/jc.2015-2683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Muhammed Kizilgul
- Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital (M.K., B.U., E.C., T.D.); Department of Endocrinology and Metabolism, Ankara Teaching and Research Hospital (S.K.); and Department of Internal Medicine, School of Medicine (Kastamonu), Hacettepe University (T.D.), Ankara, Turkey
| | - Seyfullah Kan
- Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital (M.K., B.U., E.C., T.D.); Department of Endocrinology and Metabolism, Ankara Teaching and Research Hospital (S.K.); and Department of Internal Medicine, School of Medicine (Kastamonu), Hacettepe University (T.D.), Ankara, Turkey
| | - Bekir Ucan
- Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital (M.K., B.U., E.C., T.D.); Department of Endocrinology and Metabolism, Ankara Teaching and Research Hospital (S.K.); and Department of Internal Medicine, School of Medicine (Kastamonu), Hacettepe University (T.D.), Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital (M.K., B.U., E.C., T.D.); Department of Endocrinology and Metabolism, Ankara Teaching and Research Hospital (S.K.); and Department of Internal Medicine, School of Medicine (Kastamonu), Hacettepe University (T.D.), Ankara, Turkey
| | - Tuncay Delibasi
- Department of Endocrinology and Metabolism, Diskapi Teaching and Research Hospital (M.K., B.U., E.C., T.D.); Department of Endocrinology and Metabolism, Ankara Teaching and Research Hospital (S.K.); and Department of Internal Medicine, School of Medicine (Kastamonu), Hacettepe University (T.D.), Ankara, Turkey
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Gungunes A, Sahin M, Demirci T, Ucan B, Cakir E, Arslan MS, Unsal IO, Karbek B, Calıskan M, Ozbek M, Cakal E, Delibasi T. Cushing's syndrome in type 2 diabetes patients with poor glycemic control. Endocrine 2014; 47:895-900. [PMID: 24740545 DOI: 10.1007/s12020-014-0260-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 03/28/2014] [Indexed: 10/25/2022]
Abstract
Cushing's syndrome may be more frequent in some specific patient groups such as type 2 diabetes and obesity. The aim of this study was to investigate the prevalence of Cushing's syndrome in outpatients with type 2 diabetes with poor glycemic control despite at least 3-months insulin therapy. Outpatients with type 2 diabetes whose glycemic control is poor (Hb Alc value >7 %) despite receiving at least 3-months long insulin treatment (insulin alone or insulin with oral antidiabetics) were included. Patients with classic features of Cushing's syndrome were excluded. Overnight 1 mg dexamethasone suppression test (DST) was performed as a screening test. A total of 277 patients with type 2 diabetes whose glycemic control is poor (Hb Alc value >7 %) despite insulin therapy were included. Two of the 277 patients with type 2 diabetes were diagnosed with Cushing's syndrome (0.72 %). Hypertension was statistically more frequent in the patients with cortisol levels ≥1.8 μg/dL than the patients with cortisol levels <1.8 μg/dL after overnight 1 mg DST (p = 0.041). Statistically significant correlation was determined between cortisol levels after 1 mg DST and age, daily insulin dose (r = 0.266 and p < 0.001, r = 0.163 and p = 0.008, respectively). According to our findings, the prevalence of Cushing's syndrome among patients with type 2 diabetes with poor glycemic control despite insulin therapy is much higher than in the general population. The patients with type 2 diabetes with poor glycemic control despite at least three months of insulin therapy should be additionally tested for Cushing's syndrome if they have high dose insülin requirements.
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Affiliation(s)
- Askin Gungunes
- Department of Endocrinology and Metabolic Diseases, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey,
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Ucan B, Delibasi T, Cakal E, Arslan MS, Bozkurt NC, Demirci T, Ozbek M, Sahin M. Papillary thyroid cancer case masked by subacute thyroiditis. ACTA ACUST UNITED AC 2014; 58:851-4. [PMID: 25465609 DOI: 10.1590/0004-2730000003222] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Accepted: 03/11/2014] [Indexed: 11/22/2022]
Abstract
Subacute thyroiditis (SAT) association with thyroid carcinoma has been rarely reported in the literature. We present a patient with SAT and papillary thyroid cancer that was suspected by ultrasonographic evaluation (US) following SAT treatment. A fifty-four-year old female patient referred to our department due to tachycardia, jitteriness and pain in cervical region for the past one month. SAT diagnosis was established by physical examination, laboratory and ultrasonographic findings. After treatment, control thyroid US revealed regression of the hypoechogenic regions seen in both lobes, and a previously unreported hypoechogenic lesion with microcalcification focus that had irregular borders and was not clearly separated from the surrounding parenchyma located in the posterior aspect of the lobe (Elasto score: 4, Strain index: 7.08). Fine needle aspiration biopsy was taken from this nodule; cytology was assessed to be compatible with papillary thyroid carcinoma. Postsurgical pathology evaluation showed a papillary microcarcinoma. SAT may produce ultrasound changes that obscure the coexistence of papillary carcinoma. We recommend that patients with SAT have ultrasonography after they recover. Hypoechogenic regions bigger than 1 cm that are present in the follow-up post-therapy US should be assessed by biopsy.
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Affiliation(s)
- Bekir Ucan
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Tuncay Delibasi
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Muyesser Sayki Arslan
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Nujen Colak Bozkurt
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Taner Demirci
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Mustafa Ozbek
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Mustafa Sahin
- Department of Endocrinology and Metabolism, School of Medicine, Ankara University, Ankara, Turkey
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Gungunes A, Ozbek M, Ginis Z, Sahin M, Demirci T, Cakir Ozkaya E, Karbek B, Sayki Arslan M, Ozturk Unsal I, Tutal Akkaya E, Ucan B, Gultuna Ozguclu S, Cakal E, Topaloglu O, Delibasi T. Serum nesfatin-1 levels in overt and subclinical hyperthyroidism. MINERVA ENDOCRINOL 2014; 39:209-214. [PMID: 25068306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
AIM Nesfatin-1 was recently discovered anorexigenic peptide in the brain which is derived from nucleobindin-2. Central and peripheral administration of nesfatin-1, inhibits food intake, dose-dependently. Hyperthyroid patients have increased appetite and food intake with a craving for carbohydrate-rich food, at the beginning of disease, but the physiological mechanisms underlying this behavior is not known exactly. In this study, we investigated whether nesfatin-1 is involved in the regulation of appetite and body weight in hyperthyroidism, or not. METHODS A total of 70 patients with subclinical (35) and overt hyperthyroidism (35) compared with 35 control patients. Serum nesfatin-1 level was measured from all samples by commercial ELISA kit. RESULTS Serum nesfatin-1 levels were similar between three groups (P=0.293). After adjusting for age and body mass index, nesfatin-1 levels in control group was not different from subclinical and overt hyperthyroid group, respectively (P=0.567 and P=0.519). CONCLUSION These data showed that serum nesfatin-1 levels do not significant change in overt and subclinical hyperthyroidism.
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Affiliation(s)
- A Gungunes
- Department of Endocrinology and Metabolic Diseases Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey -
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Topaloglu O, Sayki Arslan M, Turak O, Ginis Z, Sahin M, Cebeci M, Ucan B, Cakir E, Karbek B, Ozbek M, Cakal E, Delibasi T. Three noninvasive methods in the evaluation of subclinical cardiovascular disease in patients with acromegaly: epicardial fat thickness, aortic stiffness and serum cell adhesion molecules. Clin Endocrinol (Oxf) 2014; 80:726-34. [PMID: 24164445 DOI: 10.1111/cen.12356] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Revised: 10/08/2013] [Accepted: 10/23/2013] [Indexed: 11/26/2022]
Abstract
CONTEXT Several studies have reported increased risk of cardiovascular disease due to early development of endothelial dysfunction and structural vascular changes in patients with acromegaly. OBJECTIVE The aim of this study was to evaluate subclinical cardiovascular disease with epicardial fat thickness (EFT), aortic stiffness and serum levels of cell adhesion molecules (CAMs) in patients with acromegaly. DESIGN Cross-sectional study. PATIENTS Twenty-seven patients with active acromegaly (AA), 13 patients with remission acromegaly (RA) and 37 age- and sex-matched healthy controls were studied. MEASUREMENTS Epicardial fat thickness was evaluated by transthoracic echocardiography (TTE). Aortic stiffness (β) index, aortic strain (AoS) and aortic distensibility (AoD) were calculated from the aortic diameters measured by TTE. Serum levels of CAMs such as intercellular adhesion molecule (ICAM)-1, vascular cell adhesion molecule (VCAM)-1 and E-selectin were measured. RESULTS Epicardial fat thickness was significantly increased in patients with RA and AA as compared to controls 9·71 ± 1·54 and 10·08 ± 1·95 mm vs 5·74 ± 0·92 mm, P < 0·001, respectively). A significant positive correlation was found between the EFT and growth hormone (GH) levels (r = 0·365, P = 0·024). β-index was similarly higher in patients with RA and AA than controls (15·68 ± 7·27 and 11·90 ± 8·24 vs 6·85 ± 2·87, P < 0·001, respectively). AoS and AoD were significantly decreased in patients with RA and AA as compared to the control group (3·81 ± 1·94 and 3·68 ± 1·99 vs 8·19 ± 4·19%, P < 0·001, respectively; and 1·21 ± 0·66 and 1·18 ± 0·63 vs 2·58 ± 1·50, 10(-6) cm(2) /dyn, P < 0·001, respectively). Serum ICAM-1 and VCAM-1 levels were significantly higher in patients as compared to the control group (P < 0·001 vs P = 0·032, respectively). There were no significant differences in EFT, AoD, AoS, β-index and serum CAMs between two patients groups (AA vs RA, P > 0·05). There was a significant negative correlation between E-selectin and AoD (r = -0·45, P = 0·008). In multiple linear regression analysis, EFT was found to be associated with GH levels (β-coefficient = 0·575, P = 0·008). CONCLUSION This study suggests that EFT and risk of subclinical cardiovascular disease are increased in patients with acromegaly. Serum GH level is an independent risk factor for EFT.
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Affiliation(s)
- Oya Topaloglu
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
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Bozkurt NC, Karbek B, Ucan B, Sahin M, Cakal E, Ozbek M, Delibasi T. The association between severity of vitamin D deficiency and Hashimoto's thyroiditis. Endocr Pract 2014; 19:479-84. [PMID: 23337162 DOI: 10.4158/ep12376.or] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE The relation between vitamin D and autoimmune disorders has long been investigated regarding the important roles of this hormone in immune regulation. We evaluated 25-hydroxyvitamin D (25OHD) status in subjects with Hashimoto's thyroiditis (HT) and healthy controls. METHODS Group-1 included 180 euthyroid patients (123 females/57 males) with HT who were on a stable dose of L-thyroxine (LT). A total of 180 sex-, age-, and body mass index (BMI)-matched euthyroid subjects with newly diagnosed HT were considered as Group-2, and 180 healthy volunteers were enrolled as controls (Group-3). All 540 subjects underwent thyroid ultrasound and were evaluated for serum 25OHD, anti-thyroid peroxidase (anti-TPO), and anti-thyroglobulin (anti-TG) levels. RESULTS Group-1 had the lowest 25OHD levels (11.4 ± 5.2 ng/mL) compared to newly diagnosed HT subjects (Group-2) (13.1 ± 5.9 ng/mL, P = .002) and to control subjects (15.4 ± 6.8 ng/mL, P<.001). Serum 25OHD levels directly correlated with thyroid volume (r = 0.145, P<.001) and inversely correlated with anti-TPO (r = -0.361, P<.001) and anti-TG levels (r = -0.335, P<.001). We determined that 48.3% of Group-1, 35% of Group-2, and 20.5% of controls had severe 25OHD deficiency (<10 ng/mL). Female chronic HT patients had the lowest serum 25OHD levels (10.3 ± 4.58 ng/mL), and male control subjects had the highest (19.3 ± 5.9 ng/mL, P<.001). CONCLUSIONS We demonstrated that serum 25OHD levels of HT patients were significantly lower than controls, and 25OHD deficiency severity correlated with duration of HT, thyroid volume, and antibody levels. These findings may suggest a potential role of 25OHD in development of HT and/or its progression to hypothyroidism.
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Affiliation(s)
- Nujen Colak Bozkurt
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey.
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Topaloglu O, Arslan MS, Karakose M, Ucan B, Ginis Z, Cakir E, Akkaymak ET, Sahin M, Ozbek M, Cakal E, Delibasi T. Is There Any Association Between Thrombosis and Tissue Factor Pathway Inhibitor Levels in Patients With Vitamin D Deficiency? Clin Appl Thromb Hemost 2013; 21:428-33. [DOI: 10.1177/1076029613509477] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Objective: The aim of this study was to evaluate the relationship between vitamin D levels and hemostatic factors like tissue factor pathway inhibitor (TFPI). Methods: Patients who had 25-hydroxyvitamin D3 (25(OH)D3) levels measured were included. Coagulation and hemostatic parameters were evaluated. Patients were divided into 3 groups based on 25(OH)D3 levels as group 1 (25(OH)D3 < 10 ng/mL, n = 25), group 2 (25(OH)D3 = 10-19.9 ng/mL, n = 22), and group 3 (25(OH)D3 ≥ 20 ng/mL, n = 28). Results: A total of 75 patients with a mean age of 39 (range 18-57) years were included in the study. Prothrombin time was longer in group 3 than in group 2 ( P = .043). The TFPI levels were higher in group 3 than in the other groups ( P < .001). There was a strong positive correlation between 25(OH)D3 and TFPI levels ( r = .47, P < .001). Conclusion: Further studies are needed for evaluation of the role of TFPI in hemostasis and thrombotic process in patients with vitamin D deficiency.
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Affiliation(s)
- Oya Topaloglu
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Muyesser Sayki Arslan
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Melia Karakose
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Bekir Ucan
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Zeynep Ginis
- Department of Biochemistry, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Evrim Cakir
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Esra Tutal Akkaymak
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Mustafa Sahin
- Department of Endocrinology and Metabolism, Ankara University School of Medicine, Ankara, Turkey
| | - Mustafa Ozbek
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Tuncay Delibasi
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
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Cakir E, Sahin M, Topaloglu O, Colak NB, Karbek B, Gungunes A, Arslan MS, Unsal IO, Tutal E, Ucan B, Delibasi T. The relationship between LH and thyroid volume in patients with PCOS. J Ovarian Res 2012; 5:43. [PMID: 23231775 PMCID: PMC3524043 DOI: 10.1186/1757-2215-5-43] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Accepted: 12/09/2012] [Indexed: 11/29/2022] Open
Abstract
Background Thyroid volume (TV) has been found to be associated with age, anthropometry, smoking, iodine status and hyperinsulinemia. Hyperinsulinemia is frequent finding in patients with PCOS and has associations with TV. However, the TV has been evaluated only a few studies in patients with PCOS. Therefore, the aim of this study was to evaluate the biochemical and hormonal variables in patients with PCOS comparing with the controls and their relationships between TV. Methods This was a case–control study conducted in a training and research hospital. The study population consisted of 47 reproductive-age PCOS women and 30 control subjects. We evaluated anthropometric, biochemical and hormonal parameters as well as thyroid volume in PCOS patients and controls. Insulin resistance was calculated using the homeostasis model assessment insulin resistance index (HOMA-IR). Results Mean age, BMI, thyroid stimulant hormone (TSH) levels and TV were similar between groups (p<0.05). The HOMA-IR and free T4 levels were higher in patients with PCOS. However, hyperinsulinemia and insulin resistance were not found to be associated with TV. Thyroid volume was positively correlated with the LH and anti TPO levels. The participants were divided into 2 groups according to HOMA-IR levels. The mean TV measurement was higher in group with higher HOMA-IR levels, but the difference was not significant in young age PCOS patients. Conclusion In early age PCOS patients it was observed that insulin resistance had no effect on TV. In this case, anti TPO and LH have dominant effect on TV. Chronic stimulation with LH and insulin may lead to increase in TV in later stages of the PCOS diseases.
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Affiliation(s)
- Evrim Cakir
- Department of Endocrinology and Metabolic Diseases, Diskapi Training and Research Hospital, Ankara, Turkey.
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Turk E, Temir ZG, Karkiner A, Memis A, Topalak O, Evciler H, Ucan B, Karaca I. Bilhemia, an unusual complication after blunt liver trauma in a child: case report and review of the literature. Eur J Pediatr Surg 2010; 20:212-4. [PMID: 20387204 DOI: 10.1055/s-0030-1249697] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- E Turk
- Dr. Behcet Uz Children's Hospital, Pediatric Surgery, IZMIR, Turkey.
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Theysohn JM, Maderwald S, Vogt FM, Ladd SC, Ucan B, Barkhausen J, Schmitt P, Quick HH. Zeitlich und räumlich hoch aufgelöste 3D MRA (TWIST) der Pulmonalarterien: Erste klinische Erfahrungen. ROFO-FORTSCHR RONTG 2007. [DOI: 10.1055/s-2007-977091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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49
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Vogt FM, Maderwald S, Ucan B, Schmitt P, Quick HH, Barkhausen J. Zeitlich und örtlich hoch aufgelöste Multistationen-MRA (TWIST) der Becken-Bein-Arterien im Vergleich zur DSA: Erste klinische Erfahrungen bei Patienten mit pAVK. ROFO-FORTSCHR RONTG 2007. [DOI: 10.1055/s-2007-976975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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50
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Theysohn JM, Maderwald S, Vogt FM, Ladd SC, Ucan B, Barkhausen J, Schmidt M, Quick HH. Zeitlich und räumlich hoch aufgelöste kontrastverstärkte 3D MRA (TWIST) der Karotiden: Erste klinische Erfahrungen. ROFO-FORTSCHR RONTG 2007. [DOI: 10.1055/s-2007-976982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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