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Dogan NB, Yasar HY, Kilicaslan B. Cardioprotective Effects of Sodium-Glucose Cotransporter 2 Inhibitors and Their Possible Association With Normalization of the Circadian Index of Heart Rhythm. Tex Heart Inst J 2023; 50:e238196. [PMID: 38083821 PMCID: PMC10751477 DOI: 10.14503/thij-23-8196] [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] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
BACKGROUND Updated recommendations for the treatment of heart failure with reduced ejection fraction (HFrEF) include sodium-glucose cotransporter 2 (SGLT2) inhibitors and other long-established HFrEF therapies. These drugs' mechanisms of action have yet to be fully clarified. OBJECTIVE This study evaluated the effects of SGLT2 inhibitors on the modulation of autonomic function at 1 month beyond conventional HF therapy. METHODS This single-center, observational, prospective study was conducted from January 2020 to December 2022. Patients with type 2 diabetes who had ischemic HFrEF and met the study criteria were considered for SGLT2 inhibitor treatment with empagliflozin or dapagliflozin. Changes in the circadian index were used as the primary outcome to assess the early effects of SGLT2 inhibitors on autonomic function. Changes in functional effort capacity and laboratory findings were also evaluated. Participants' circadian index was measured by a 24-hour rhythm Holter monitoring recorder (BTL-08 Holter H100). A symptom-limited treadmill test assessed patients' effort capacities. Tests were repeated after 1 month of therapy. RESULTS The mean (SD) age of the 151 participants was 56.95 (7.29) years; their mean (SD) left ventricular EF was 35.69% (7.10%), and 95 participants were men (62.9%). From baseline to 1 month, mean (SD) daytime heart rate (80.63 [9.17] vs 77.67 [8.04] beats per minute; P = .004) and nighttime heart rate (76.83 [11.34] vs 73.81 [10.25] beats per minute; P = .03) decreased significantly. Variation in the circadian indexes (mean [SD], 1.04 [0.02] vs 1.10 [0.04]; P < .001) was statistically significant, favoring increased modulation of autonomic function. The increases in exercise duration (mean [SD], 8.88 [3.69] minutes and median [IQR], 8.81 [5.76-12.13] minutes vs 9.72 [3.14] and 9.59 [7.24-12.22] minutes; P = .04) and exercise capacity (mean [SD], 203.38 [65.18] m and median [IQR], 119.22 [149.43-259.15] m vs 335.61 [51.39] and 325.79 [293.59-376.91] m; P < .001] were also significant. CONCLUSION The use of SGLT2 inhibitors during early treatment can favorably affect both autonomic dysfunction and functional effort capacity of patients with type 2 diabetes with ischemic HFrEF.
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Affiliation(s)
- Nazile Bilgin Dogan
- Department of Cardiology, University of Health Sciences Tepecik Training and Research Hospital, Izmir, Turkey
| | - Hamiyet Yilmaz Yasar
- Department of Endocrinology, University of Health Sciences Tepecik Training and Research Hospital, Izmir, Turkey
| | - Baris Kilicaslan
- Department of Cardiology, University of Health Sciences Tepecik Training and Research Hospital, Izmir, Turkey
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Demirpence M, Yilmaz Yasar H, Karakoyun I, Girgin EM. Galanin-like peptide and its correlation with androgen levels in patients with polycystic ovary syndrome. Endokrynol Pol 2023; 74:197-202. [PMID: 37155301 DOI: 10.5603/ep.a2023.0026] [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: 12/28/2022] [Revised: 03/11/2023] [Accepted: 03/11/2023] [Indexed: 05/10/2023]
Abstract
INTRODUCTION We aimed to investigate serum galanin-like peptide (GALP) levels and their correlation with hormonal and metabolic parameters in patients with polycystic ovary syndrome (PCOS). MATERIAL AND METHODS The study included 48 women (age range, 18-44 years) with a diagnosis of PCOS, and a control group that included 40 healthy females (age range, 18-46 years). Waist circumference, body mass index (BMI), and Ferriman-Gallwey score were evaluated and plasma glucose, lipid profile, oestradiol, progesterone, total testosterone, prolactin, insulin, dehydroepiandrosterone sulphate (DHEA-S), follicle-stimulating hormone (FSH), luteinizing hormone (LH), thyroid-stimulating hormone (TSH), 25-hydroxyvitamin D (25(OH)D), fibrinogen, d-dimer, C-reactive protein (CRP), and GALP levels were measured in all study subjects. RESULTS Waist circumference (p = 0.044) and Ferriman-Gallwey score (p = 0.002) were significantly higher in patients with PCOS compared to the control group. Among the metabolic and hormonal parameters studied, only total testosterone was significantly higher in patients with PCOS (p = 0.002). Also, the serum 25(OH)D level was significantly lower in the PCOS group (p = 0.001). CRP, fibrinogen, and D-dimer levels were all similar between the 2 groups. Serum GALP level was significantly higher in PCOS patients (p = 0.001). GALP was negatively correlated with 25(OH)D (r = -0.401, p = 0.002) and positively correlated with total testosterone values (r = 0.265, p = 0.024). Multiple regression analysis revealed that both total testosterone and 25(OH)D significantly contributed to GALP levels. CONCLUSIONS Our study is the first in the literature to evaluate serum GALP levels in patients with PCOS. Increased GALP levels in PCOS and its association with total testosterone levels might show that GALP can act as an intermediary in increased GnRH-mediated LH release, which is one of the underlying pathogenetic mechanism of PCOS.
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Affiliation(s)
- Mustafa Demirpence
- Department of Endocrinology and Metabolic Diseases, Health Sciences University, Izmir Tepecik Training and Research Hospital, Izmir, Türkiye.
| | - Hamiyet Yilmaz Yasar
- Department of Endocrinology and Metabolic Diseases, Health Sciences University, Izmir Tepecik Training and Research Hospital, Izmir, Türkiye
| | - Inanc Karakoyun
- Department of Medical Biochemistry, Health Sciences University, Izmir Tepecik Training and Research Hospital, Izmir, Türkiye
| | - Elif Merve Girgin
- Department of Medical Biochemistry, Health Sciences University, Izmir Tepecik Training and Research Hospital, Izmir, Türkiye
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Altin Z, Yasar HY. The effect of diabetes mellitus on disease prognosis in COVID-19 patients. Ir J Med Sci 2022; 191:2619-2624. [PMID: 35411486 PMCID: PMC8999986 DOI: 10.1007/s11845-022-03001-1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 03/31/2022] [Indexed: 01/08/2023]
Abstract
Background In this study, we aimed to evaluate and compare the clinical characteristics, laboratory findings, and outcomes of hospitalized patients with and without diabetes along with poorly vs. well-controlled diabetes. Methods A total of 341 hospitalized patients with COVID-19 confirmed by RT-PCR and/or chest imaging suggestive of COVID-19 infection were retrospectively included in this study. The patients were divided into 2 groups as diabetic (n = 120) and non-diabetic (n = 221). Demographic data, symptoms, comorbidities, and laboratory values were recorded. The patients were classified according to the clinical stages defined by guidance of the WHO for COVID-19. The percentage of patients with severe disease was higher in diabetic group (n = 57) 47.5% compared to non-diabetic group (n = 61) 27.8% (p = 0.001). The percentage of patients requiring oxygen therapy was significantly higher in 61 (51.2%) diabetic group than non-diabetic group 65 (29.4%) (p = 0.001). The median duration of hospitalization in the diabetic group was 8 days [IQR 6–11.5] that was significantly higher than the non-diabetic group as 7 days [IQR 5–10] (p = 0.009). The median duration of hospitalization in poorly controlled diabetic group was 9 days [IQR 6.00–16.00] that was significantly higher than well-controlled diabetic group 8 days [IQR 6.00–11.00] (p = 0.006). Results Patients with diabetes were more susceptible to COVID-19 infection and the infection was more severe in patients with diabetes compared to patients without diabetes. However, the mortality rate was similar between diabetic and non-diabetic group. Diabetic COVID-19 patients without other comorbidities were not prone to severe infection. Conclusion Patients with diabetes and comorbidities, apart from the glycemic control, should receive intensive monitoring and disease management.
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Affiliation(s)
- Zeynep Altin
- Department of Internal Medicine, Tepecik Training and Research Hospital, 1140/1 Street Number, Yenişehir, Konak, Izmir, Turkey.
| | - Hamiyet Yilmaz Yasar
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Tepecik Training and Research Hospital, Izmir, Turkey
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Yilmaz Yasar H, Demirpence M, Colak A, Zeytinli M, Yasar E, Taylan A. Serum neudesin levels in patients with polycystic ovary syndrome. Ginekol Pol 2022; 93:525-530. [PMID: 34263912 DOI: 10.5603/gp.a2021.0139] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 04/05/2021] [Accepted: 04/06/2021] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVES We aimed to investigate serum neudesin levels that has neural, metabolic functions in patients with polycystic ovary syndrome (PCOS). MATERIAL AND METHODS The study included 180 women (age range, 18-44 years) with a diagnosis of PCOS and a control group that included 100 healthy females (age range, 18-46 years). Body mass index (BMI), waist circumference, Ferriman-Gallwey score, was evaluated and plasma glucose, lipid profile, estradiol, progesterone, total testosterone, prolactin, insulin, dehydroepiandrosterone sulfate (DHEA-S), FSH, LH, free T3, free T4, thyroid stymulating hormone (TSH), anti-thyroperoxidase (anti-TPO) antibody and neudesin levels were evaluated in all participants. RESULTS BMI and waist circumference were similar between two groups. Ferriman-Gallwey score was significantly higher in the patient group. Fasting blood glucose, HbA1C, lipid parameters except triglyceride levels, free T3, free T4, TSH, anti-TPO were similar between the two groups. Triglyceride, insulin and HOMA values were significantly higher in PCOS patients. While follicle-stimulating hormone (FSH), estradiol, progesterone, prolactin and DHEAS levels were similar, LH was significantly higher in patients with PCOS. Serum neudesin level was significantly lower in PCOS patients with respect to controls (p = 0.015). Neudesin was positively correlated with insulin (r = 0.224, p = 0.037), and progesterone (r = 0.716, p = 0.001). Multiple regression analysis revealed that neudesin correlated with only progesterone (beta = 0.308, p = 0.001). CONCLUSIONS Due to the association of decreased levels of neudesin with PCOS and correlation of neudesin with progesterone, neudesin may be related with one of patophysiologic pathways of PCOS. Still, it is not certain that decreased neudesin is involved in the pathogenesis of PCOS or is the result of the disorder.
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Affiliation(s)
- Hamiyet Yilmaz Yasar
- Department of Endocrinology, Tepecik Research and Training Hospital, Izmir, Turkey.
| | - Mustafa Demirpence
- Department of Endocrinology, Tepecik Research and Training Hospital, Izmir, Turkey
| | - Ayfer Colak
- Department of Biochemistry, Tepecik Research and Training Hospital, Izmir, Turkey
| | - Merve Zeytinli
- Department of Biochemistry, Tepecik Research and Training Hospital, Izmir, Turkey
| | - Erdem Yasar
- Department of Anesthesiology and Algology, Katip Celebi University, Ataturk Research and Training Hospital, Izmir, Turkey
| | - Ali Taylan
- Department of Rheumatology, Tepecik Research and Training Hospital, Izmir, Turkey
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Yasar HY, Demirpence M, Colak A, Yurdakul L, Zeytinli M, Turkon H, Ekinci F, Günaslan A, Yasar E. Serum irisin and apelin levels and markers of atherosclerosis in patients with subclinical hypothyroidism. Archives of Endocrinology and Metabolism 2019; 63:16-21. [PMID: 30864627 PMCID: PMC10118837 DOI: 10.20945/2359-3997000000106] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 07/04/2018] [Indexed: 11/23/2022]
Abstract
OBJECTIVE In this study, we aimed to evaluate serum irisin and apelin levels in patients with subclinical hypothyroidism (SCH) when they were subclinical hypothyroid and become euthyroid after levothyroxine therapy and association of these adipokines with markers of atherosclerosis such as serum homocysteine levels and carotid intima-media thickness (IMT). SUBJECTS AND METHODS The study included 160 patients with newly diagnosed subclinical hypothyroidism due to Hashimoto's thyroiditis and 86 euthyroid healty subjects. Serum glucose and lipid profile, insulin, HOMA, TSH, free T3, free T4, anti-thyroperoxidase and anti-thyroglobulin antibodies, homocysteine, apelin and irisin levels were measured in all study subjects. Thyroid and carotid ultrasound examinations were performed. The subclinical hypothyroid group was reevaluated after 12-weeks of levothyroxine therapy when they became euthyroid. RESULTS Clinical characteristics of the patient and control group were similar. Glucose, insulin and HOMA levels, lipid parameters and free T3 were similar between the two groups.. Serum homocystein was higher and apelin was lower in patients with SCH, but irisin levels were similar between the two groups. While thyroid volume was lower, carotid IMT was significantly greater in patients with SCH (pCarotidIMT:0,01). After 12-weeks of levothyroxine therapy, all the studied parameters remained unchanged except, serum freeT4, TSH, homocystein and apelin. While homocystein decreased (p: 0,001), apelin increased significantly (p = 0,049). In multivariate analysis, low apelin levels significantly contributed to carotid IMT (p = 0,041). CONCLUSIONS Apelin-APJ system may play a role in vascular and cardiac dysfunction in patients with SCH and treatment of this condition may improve the risk of cardiovascular disease.
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Koseoglu Atilla FD, Ozgen Saydam B, Erarslan NA, Diniz Unlu AG, Yilmaz Yasar H, Ozer M, Akinci B. Does the ACR TI-RADS scoring allow us to safely avoid unnecessary thyroid biopsy? single center analysis in a large cohort. Endocrine 2018; 61:398-402. [PMID: 29744655 DOI: 10.1007/s12020-018-1620-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [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: 01/03/2018] [Accepted: 04/26/2018] [Indexed: 12/30/2022]
Abstract
INTRODUCTION The American College of Radiology (ACR) has recently proposed a guideline that recommends clinicians to perform thyroid fine-needle aspiration biopsy (FNAB) on the basis of ultrasound features. In this study, we focused on nodules for which no biopsy is recommended by the ACR Thyroid Imaging, Reporting and Data System (TI-RADS) guideline. SUBJECTS AND METHODS Two-thousand eight-hundred and forty-seven consecutive patients with thyroid nodules who underwent FNAB according to the 2009 American Thyroid Association (ATA) guideline were included. The nodules were re-classified according to the ACR TI-RADS guideline as benign (TR1), not suspicious (TR2), mildly suspicious (TR3), moderately suspicious (TR4) and highly suspicious (TR5). The TR3 category was stratified into two subcategories as regard to the nodule size (TR3; <25 mm and TR3; ≥25 mm). RESULTS Two-hundred and thirty-three (8.2%) patients with non-diagnostic FNABs were excluded. When the TR2 and TR3; <25 mm categories were merged, FNAB was suggestive of thyroid cancer in 17 of 1382 patients (1.2%). FNAB revealed Bethesda IV-VI in 5 of 273 patients with the TR3; ≥25 mm category (1.8%), in 61 of 896 patients with the TR4 category (6.8%), and in 18 of 63 of patients with the TR5 category (28.6%). The ACR TI-RADS scoring was 98.8% (95% CI: 98 to 99.3) specific for identification of a benign nodule. CONCLUSION Our data suggest that ACR TI-RADS scoring is an applicable and potentially cost-effective approach to determine thyroid nodules to be biopsied, although a small proportion of thyroid cancers would be missed.
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Affiliation(s)
| | - Basak Ozgen Saydam
- Division of Endocrinology and Metabolism, Dokuz Eylul University Faculty of Medicine, 35340,, Izmir, Turkey.
| | - Nihat Ali Erarslan
- Department of Radiology, Tepecik Training and Research Hospital, 35180,, Izmir, Turkey
| | | | - Hamiyet Yilmaz Yasar
- Division of Endocrinology and Metabolism, Tepecik Training and Research Hospital, 35180,, Izmir, Turkey
| | - Muhammet Ozer
- Department of Internal Medicine, Dokuz Eylul University Faculty of Medicine, 35340,, Izmir, Turkey
| | - Baris Akinci
- Division of Endocrinology and Metabolism, Dokuz Eylul University Faculty of Medicine, 35340,, Izmir, Turkey
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Demirpence M, Yasar HY, Colak A, Akinci B, Yener S, Toprak B, Karademirci I. MEAN PLATELET VOLUME AND PLATELET FUNCTION ANALYSIS IN ACROMEGALIC PATIENTS BEFORE AND AFTER TREATMENT. Acta Endocrinol (Buchar) 2016; 12:401-406. [PMID: 31149122 DOI: 10.4183/aeb.2016.401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Objective Mean platelet volume (MPV) and platelet function analysis have been studied before in acromegaly, but the effect of treatment on both parameters has not been evaluated. We aimed to investigate MPV and platelet function analysis in acromegalic patients after six-months of treatment. Methods Forty patients with active acromegaly and 36 healthy subjects were included in the study. Plasma glucose and lipids, fibrinogen, GH, IGF-1 levels, MPV and platelet function analysis were measured. All patients with acromegaly were re-evaluated six months after treatment. Results Fasting blood glucose (FBG), GH, IGF-1, fibrinogen levels and MPV values were significantly higher in acromegalic group compared with the control. Platelet function was enhanced significantly (pcol-ADP: 0.002, pcolepinephrine: 0.002). After 6 months of treatment FBG, serum GH, IGF-1, fibrinogen and MPV decreased and collagen/ADP- and collagen/epinephrine-closure times (CT) were increased. Acromegalic patients that were in remission with long-acting SSA after surgery had significantly higher fibrinogen levels and MPV and decreased collagen/epinephrine-CT with respect to the controls (pfibrinogen: 0.001, pMPV: 0.026, pcol-epinephrine: 0.037). Conclusion Acromegaly was associated with increased MPV and enhanced platelet activity. Although growth hormone hypersecretion was controlled by surgery and medical treatment, these parameters did not improve - indicating a still increased risk for cardiovascular events.
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Affiliation(s)
- M Demirpence
- Tepecik Research and Training Hospital, Dept. of Endocrinology, Izmir, Turkey
| | - H Y Yasar
- Tepecik Research and Training Hospital, Dept. of Endocrinology, Izmir, Turkey
| | - A Colak
- Tepecik Research and Training Hospital, Dept. of Biochemistry, Izmir, Turkey
| | - B Akinci
- Dokuz Eylul University Hospital, Dept. of Endocrinology, Aydin, Turkey
| | - S Yener
- Dokuz Eylul University Hospital, Dept. of Endocrinology, Aydin, Turkey
| | - B Toprak
- Tepecik Research and Training Hospital, Dept. of Biochemistry, Izmir, Turkey
| | - I Karademirci
- Tepecik Research and Training Hospital, Dept. of Biochemistry, Izmir, Turkey
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Yasar HY, Topaloglu O, Demirpence M, Ceyhan BO, Guclu F. IS SUBCLINICAL HYPOTHYROIDISM IN PATIENTS WITH POLYCYSTIC OVARY SYNDROME ASSOCIATED WITH BMI? Acta Endocrinol (Buchar) 2016; 12:431-436. [PMID: 31149127 DOI: 10.4183/aeb.2016.431] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Objective To investigate the impact of body weight on the subclinical hypothyroidism observed in patients with PCOS. Methods The study included 95 normal weight (Group-1) and 122 overweight or obese women (Group-2) with PCOS. The control group consisted of age and BMI matched healthy individuals and grouped as normal weight (n: 66, Group-3) and overweight or obese (n: 65, Group-4. Women with chronic disease such as overt thyroid dysfunction, late-onset adrenal hyperplasia, and diabetes were excluded from the study. Plasma glucose and lipid profile, thyroid hormones, insulin, FSH, LH, total testosterone, estradiol, progesterone and DHEA-S were measured. Results While fasting glucose was similar, insulin and HOMA-IR were higher in Group-2 and Group-4 (p: 0.001). The groups were similar with respect to FSH, Estradiol, prolactine, DHEAS. While total testosterone and LH levels were higher (ptestosterone: 0,009), progesterone was lower in both PCOS groups (pprogesterone: 0.041). Free T3, free T4, thyroid antibodies were similar between the groups, but the prevalence of subclinical hypothyroidism was greater in Group-2 and -4 than in Group-1 and -3 (p: 0.044). TSH was only correlated with BMI (r: 0.122, p: 0.02). Conclusion The increased prevalence of subclinical hypothyroidism in women with PCOS might be the result of increased BMI.
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Affiliation(s)
- H Y Yasar
- Tepecik Research and Training Hospital, Dept. of Endocrinology, Izmir, Turkey
| | - O Topaloglu
- Tepecik Research and Training Hospital, Dept. of Internal Medicine, Izmir, Turkey
| | - M Demirpence
- Tepecik Research and Training Hospital, Dept. of Endocrinology, Izmir, Turkey
| | - B O Ceyhan
- Medline Hospital, Dept. of Endocrinology, Aydin, Turkey
| | - F Guclu
- Tepecik Research and Training Hospital, Dept. of Endocrinology, Izmir, Turkey
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Abstract
BACKGROUND Insulin had been shown to have a mitogenic effect on thyroid cell cultures. The aim of this study was to investigate insulin resistance in patients with euthyroid nodular goiter. METHODS Sixty-three patients with nodular thyroid disease and 83 healthy controls were included in the study. Both the patient and the control group were euthyroid, euglycemic and normotensive. None of the study subjects had risk factors for insulin resistance. All the study subjects were evaluated by serum insulin levels and biochemical parameters and thyroid ultrasound. All subjects with thyroid nodules greater than 1cm (n = 36) were offered to undergo thyroid fine needle aspiration biopsy. RESULTS The two groups were similar with respect to age, gender, BMI, waist circumference, serum lipid levels, serum fT3, fT4 and TSH levels. But HOMA was found to be significantly higher in the patient group (p: 0.007) and thyroid volume was significantly greater in the patient group (p = 0.03). In the patient group there was a significant correlation between HOMA and nodule volume (p < 0.001) while there was not a significant correlation between HOMA and number of thyroid nodules. Thyroid cancer was diagnosed in 3 of the 36 patients (8.33 %). CONCLUSIONS Insulin resistance may induce increased thyroid proliferation and nodule volume and nodule formation. Therefore, insulin resistance may be a risk factor for euthyoid nodular goiter.
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