Publications by authors named "Neslihan Tutuncu"

Aim: A co-formulation containing insulin degludec and insulin aspart (IDegAsp) is available for the treatment of diabetes in Turkey. We aimed to evaluate the clinical results of switching to IDegAsp treatment for Type 2 diabetes.

Methods: A total of 217 patients with type 2 diabetes treated with IDegAsp and having follow-up data were included.

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Background: The response against adjuvants in vaccines is presented as autoimmune/inflammatory syndrome (ASIA). In this case report, we presented both SAT and Graves' disease in a patient as ASIA following the BNT162b2 mRNA COVID-19 vaccination.

Case Presentation: A 31-year-old woman was admitted to the endocrinology outpatient clinic with the complaint of neck pain following the second dose of the BNT162B2 SARS-CoV-2 (Pfizer/BioNTech) vaccine.

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Background: A considerable number of COVID-19 vaccines became available following the outbreak. Yet, various inflammatory and autoimmune complications have been reported following vaccination. We aimed to report the case of a type 1 diabetic patient converting from Hashimoto's thyroiditis to Graves' disease after the fourth dose of COVID-19 vaccine, thought to trigger an autoimmune/inflammatory syndrome induced by adjuvants (ASIA syndrome).

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Background: Mitochondrial uncoupling proteins (UCP) 1, 2 and 3 are members of the anion carrier protein family located in the inner mitochondrial membrane. There are various controversial reports on UCP genotypes and obesity in adults and children. This study aims to investigate the link between mostly studied UCP polymorphisms (UCP1-3826A/G, UCP2 Insertion/Deletion (Ins/Del) polymorphism of exon 8, and UCP3-55C/T Polymorphisms) and obesity in Turkish children.

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Objective: Proton pump inhibitor (PPI) drugs reduce gastric acid secretion and lead to an increase in serum gastrin levels. Many preclinical and some clinical researches have established some positive effects of gastrin or PPI therapy on glucose regulation. The aim of this study was to prospectively investigate the short term effects of esomeprazole on glycaemic control in patients with type 2 diabetes mellitus.

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Aims: We aimed to evaluate the elastographic features of Achilles tendon with Acoustic Radiation Force Impulse in patients with and without diabetic neuropathy.

Methods: According to the presence of peripheral neuropathy, 45 patients with type 2 diabetes were divided into 2 subgroups. Those with peripheral neuropathy were defined as group I (22 patients) and those without peripheral neuropathy were defined as group II (23 patients).

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Background: Limited real-world data are currently available on hypoglycemia in diabetes patients. The International Operations Hypoglycemia Assessment Tool (IO HAT) study was designed to estimate hypoglycemia in insulin-treated type I (T1DM) and type II (T2DM) diabetes mellitus patients from 9 countries. The data from Turkey cohort are presented here.

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Objective: The objective of this study was to assess the antiproliferative pleiotropic effects of statins on thyroid function, volume, and nodularity.

Subjects And Methods: One hundred and six hyperlipidemic patients were included in this prospective study. The 69 patients in the statin groups received atorvastatin (16 received 10 mg and 18 received 20 mg) or rosuvastatin (20 received 10 mg and 15 received 20 mg).

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Objective: Thyroid volume and the prevalence of thyroid nodules are higher in patients with insulin resistance. A relationship between thyroid volume and glucose metabolism disorders (GMD) has not as yet been clarified. The present retrospective study aimed to investigate the association between GMD and thyroid volume.

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The prevalence of temporomandibular disorders is higher among women than men (ratio 3:1 -9:1). Polycystic ovary syndrome(PCOS) is the most common endocrine disorder in women, which is characterised by chronic low-grade inflammation and excess of androgenic hormones that lead to metabolic aberrations and ovarian dysfunction. Increased activities of various matrix metalloproteinases (particularly MMP-2 and 9) in the serum of these patients has been reported, and it has been hypothesised that high activities of MMP may contribute to loss of matrix and chronic inflammation of the fibrocartilage in temporomandibular disorders.

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The present retrospective study aimed to investigate the relationship between thyroid volume and prevalence of thyroid cancer. We investigated the data of 3,850 patients who underwent fine-needle aspiration biopsy (FNAB). Biopsy results were evaluated as diagnostic or nondiagnostic, and diagnostic results were classified as benign, malignant, and indeterminate.

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Background: Previous studies have shown a positive relationship between insulin resistance and several common adult cancers. The present retrospective study aimed to investigate the association between glucose metabolism disorders (GMDs) and the prevalence of thyroid cancer.

Methods: We investigated the data of 4272 patients who had undergone fine-needle aspiration biopsy (FNAB) of thyroid nodules.

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Approximately 30% of patients with thyroid nodules have indeterminate or suspicious fine-needle aspiration (FNA) biopsy results. These patients usually undergo thyroidectomy because of cancer risk. Our aim was to determine diagnostic value of cyclin A and cyclin B1 immunohistochemistry added to routine cytology and their expression on histological sections.

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Insulin resistance, which provides a convenient milieu for platelet activation, has been closely associated with atherosclerotic disorders. Although it often accompanies hyperprolactinemia, findings conflict concerning its clinical impact in macroprolactinemia. In order to investigate the relationship between hyperprolactinemia and platelet activation evidenced by ADP-stimulated P-selectin expression on flow cytometry, we studied hyperprolactinemic, macroprolactinemic, and normoprolactinemic subjects.

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Background: Type 2 diabetes mellitus (DM) is a significant cause of morbidity and premature mortality especially in adults. In Turkey, there are few studies on DM incidence. This study aimed to determine the incidence of type 2 DM in women 15 years or older in Turkey.

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Objective: We report a rare case of 49,XXXXY syndrome with autoimmune diabetes (requiring insulin therapy), bilateral cataracts and unilateral glaucoma.

Clinical Presentation And Intervention: A 25-year-old man with mental retardation presented with multiple skeletal abnormalities, polyuria and polydipsia. He had high glucose concentrations, without ketonuria, and hypergonadotropic hypogonadism.

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Objective: Metabolic syndrome (MetS) is a cluster of metabolic abnormalities with insulin resistance (IR) as a major component. It has been recently questioned whether MetS and its related components are associated with functional and morphological alterations of the thyroid gland. The aim of our study is to examine thyroid volume and nodule prevalence in a case-control study of patients with MetS in a mild-to-moderate iodine-deficient area.

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Thyroid hemiagenesis is a rare form of thyroid dysgenesis, in which one thyroid lobe fails to develop. The true prevalence of this rare abnormality is about 0.05-0.

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Objectives: Owing to ineffective iodine removal, radioiodine dose reduction was recommended in thyroid cancer patients with chronic renal failure. In this study, the radioiodine biodistribution pattern on posttherapy scans in patients with normal renal function and those with chronic renal failure is outlined.

Methods: This study included 10 thyroid cancer patients with chronic renal failure (five females, five males; mean age: 43+/-12.

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Background: Mitochondria are the main production site of free oxygen radicals, which can cause organ dysfunction by oxidation of cellular macromolecules such as carbohydrates, lipids and proteins. Oxidative stress may result from either overproduction of these species or from failure of the antioxidant defence systems. Thyroid hormones have well-known effects on mitochondrial oxygen consumption, but data about how hypothyroidism affects oxidative stress are controversial, and little is known about oxidative stress in subclinical hypothyroidism.

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Objective: Amiodarone-induced thyrotoxicosis (AIT) is usually classified into two types: type 1, in which a high iodine content triggers the autonomous production of thyroid hormone; and type 2, in which destructive thyroiditis causes the release of preformed thyroid hormone. AIT is a difficult management problem that sometimes requires ablative thyroid therapy. The use of radioactive iodine (RAI) therapy in patients with type-1 AIT who had a 24-hour radioactive iodine uptake (RAIU) value of >10% has been previously reported.

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Background: Brain natriuretic peptide (BNP) is secreted from the ventricular myocardium in response to volume expansion and pressure overload. Serum BNP levels are also affected by thyroid function status, which was mostly related to a direct stimulatory effect of thyroid hormones on the secretion of BNP. Although the diagnostic value of BNP in heart failure is undisputed, its value in the presence of the thyroid dysfunction has been recently questioned.

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Background: The prevalence rate of thyroid cancers in patients with renal failure is variable in different studies. Our aim was to determine the prevalence and clinicopathological characteristics of thyroid cancers in the dialysis population and to evaluate the potential risk factors.

Methods: We performed a retrospective analysis on end-stage renal disease (ESRD) patients on dialysis and thyroidectomized patients without ESRD (2000-2006).

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Nettle (Urtica dioica) is commonly sold as a herbal tea in Turkey. We report a case of gynaecomastia in a man (in which the only aetiologic factor identified was nettle tea consumption) and a case of galactorrhoea in a woman (in which the only aetiologic factor identified was also nettle tea ingestion).

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