Publications by authors named "Mehmet Yalcın"

Purpose: Adults with type 1 diabetes (T1D) are reported to be at higher risk for clinical eating disorders (ED) and other disordered eating behaviors (DEB) than their peers without diabetes. On the other hand, there is insufficient data on DEB in adults with type 2 diabetes (T2D). Our study aimed to investigate the prevalence of DEB in patients with T1D and T2D on intensive insulin therapy followed in our outpatient clinic.

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Although lithium (LIT) therapy is key in managing bipolar disorder long-term, prolonged use significantly contributes to acquired Nephrogenic Diabetes Insipidus (NDI). This study examined whether combining Silymarin (SIL) with Vitamin C (Vit C) enhances protection against lithium-induced nephrotoxicity in rats, comparing their individual antioxidant effects as well. Rats subjected to Li exposure were provided with a standard commercial diet supplemented with 80 mmol LiCl per kilogram for 28 days.

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Backgruound: This study investigated the risk of frailty in older adults with differentiated thyroid cancer (DTC) and the effect of thyroid- stimulating hormone (TSH) levels on frailty.

Methods: This single-center, cross-sectional study included 70 DTC patients aged ≥60 years with stable TSH levels during the previous year while receiving levothyroxine. Frailty was assessed using the fried frailty phenotype (FFP).

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This systematic review and meta-analysis examines the effectiveness of science-based mobile apps for reducing anxiety. A systematic review was employed to identify experimental studies on science-based mobile applications developed anxiety disorders. International databases such as PubMed, Web of Science, SCOPUS and ProQuest were searched to locate relevant articles.

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Purpose: To discern whether reduced infection rates were attributed to antiseptic solutions or mechanical rectal irrigation.

Patients And Methods: After receiving ethical approval, the study included patients who underwent transrectal prostate biopsy due to elevated PSA or abnormal digital rectal examination findings, and prostate cancer under active surveillance, at Tepecik Training and Research Hospital between April 2022 and June 2023. Standard antibiotic prophylaxis was administered.

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Objective: Endogenous cortisol excess is known to affect body fat distribution. Ectopic fat is the accumulation of triglycerides in non-adipose tissue regions that normally contain little fat. The aim of study was to investigate the amount of ectopic fat in aortic perivascular and renal sinus fat of patients with endogenous cortisol excess and its relationship with their comorbitidies and laboratory findings.

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Background/aim: Type 2 diabetes mellitus (T2DM) is the most common type of diabetes and occurs due to insufficient insulin secretion or inability to use existing insulin and the effects of environmental factors. Although there are many studies on the pathophysiology of T2DM, the mechanisms contributing to the pathogenesis of insulin resistance and pancreatic beta-cell dysfunction have not been completely elucidated. Some adipokines secreted from adipose tissue, which are the primary regulators of insulin resistance, affect immune and inflammatory functions.

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Objective: To investigate the clinical, laboratory findings and signal intensity index (SII) on magnetic resonance imaging (MRI) of patients with bilateral and unilateral macronodular mild autonomous cortisol secretion (MACS).

Patients And Measurements: Clinical and laboratory findings of 81 patients with MACS were examined from retrospective records. SII of adenomas and internodular areas were evaluated by MRI.

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Context: The impact of abnormal cortisol secretion on cognitive functions in patients with mild autonomous cortisol secretion (MACS) remains uncertain.

Objective: To assess cognitive functions, determine serum brain-derived neurotrophic factor (BDNF) concentration in patients with MACS, and investigate the association between cognitive subdomains and BDNF.

Methods: We prospectively recruited 84 participants-28 patients with MACS, 28 patients with nonfunctional adrenal adenoma (NFAA), and 28 control subjects matched for age, gender, body mass index (BMI), visceral adiposity, and educational level.

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Although PSMA-targeted PET imaging is predominantly used for prostate carcinoma (PC), it has also been reported for thyroid carcinoma (TC). A 77-year-old man had a liver metastasectomy for poorly differentiated TC, which had elevated 18 F-FDG uptake. Two years later, he was diagnosed with acinar-type modified Gleason score of 7 (3 + 4) PC.

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Purpose: To compare the efficacy, safety and advantages of the total tubeless (TT) percutaneous nephrolithotomy (PCNL) and standard PCNL in the supine position.

Methods: This study was carried out at İzmir Tepecik Health Application and Research Center. A total of 87 patients were examined.

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Purpose: Studies on intestinal microbiota in acromegaly are scant. This study aimed to characterize the gut microbiome in patients with acromegaly.

Method: Stool samples were collected from 11 patients newly diagnosed with acromegaly and 12 healthy controls matched for body mass index (BMI) and age after three days on a standard diet.

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: The objective of this study was to investigate factors influencing Gallium 68 Prostate Specific Membrane Antigen Positron Emission Tomography (Ga68 PSMA PET-CT) uptake for primary staging in prostate cancer. : Retrospective analysis was conducted on 499 non-metastatic and 243 de novo metastatic prostate cancer cases undergoing Ga68 PSMA PET-CT. Demographic, clinical, and imaging data were collected and analyzed.

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Purpose: Our aim was to develop a prediction model based on a simple score with clinical, laboratory, and imaging findings for the subtype diagnosis of primary aldosteronism (PA). The contribution of adrenal volumetric assessment to PA subtyping was also investigated.

Methods: Thirty-five patients with adequate cannulation in adrenal venous sampling (AVS) were included.

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Objective: Acute pancreatitis is a rare disease in pregnant patients. Although it may have serious maternal and fetal consequences, morbidity and mortality rates have decreased recently due to appropriate and rapid treatment with earlier diagnosis. The aim of this study was to evaluate pregnant patients diagnosed with acute pancreatitis.

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Background: We tried to determine whether the indication of Achilles tenotomy (AT) in clubfoot patients based on clinical evaluation could be confirmed radiographically, and to find an objective radiographic cut-off value for its indication.

Methods: Eighty-six clubfeet from 60 patients, (26 bilateral and 34 unilateral) were included. A standard Ponseti treatment regimen was applied.

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Background: Although isolated distal radius and radial head fractures are common injuries, simultaneous ipsilateral fractures are uncommon. They can range from simple undisplaced fractures at either end to severely comminuted ipsilateral proximal and distal radial fractures. Few cases have been reported with concomitant comminuted distal radius and radial head fractures, and no treatment guidelines are available.

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Myonectin is a hormone that is produced mainly by skeletal muscle. We investigated the effects of exercise and energy drink (ED) administration on myonectin expression in skeletal muscle, liver and kidney tissue in rats; myonectin is produced by all three tissues. We used 28 male albino rats in four groups: untreated control (C), exercise (E), energy drink (ED) and exercise + energy drink (E + ED).

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Background And Aim: The prevalence of fibrosis and steatosis in patients with psoriasis, as determined by vibration-controlled transient elastography (VCTE), has not been evaluated in Turkiye to date. The present cross-sectional study aims to present the first systematic screening results, focusing on two primary objectives: 1) establishing the prevalence of fibrosis and steatosis, and 2) identifying independent predictors for liver stiffness measurement (LSM) and controlled attenuation parameter (CAP) values in this patient population.

Materials And Methods: Patients were eligible for inclusion if they had a confirmed diagnosis of psoriasis by a qualified dermatologist based on characteristic signs and symptoms and histopathological examination, and had undergone VCTE for LSM and CAP measurements.

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Peripheral nerve injuries inflict severe consequences, necessitating innovative therapeutic strategies. This study investigates the potential of liraglutide, a glucagon-like peptide-1 receptor agonist, in mitigating the consequences of peripheral nerve injury. The existing treatment methods for such injuries underscore the importance of ongoing translational research efforts.

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Accurate measurement of adrenocorticotropic hormone (ACTH) is crucial in the evaluation of pituitary and adrenal disorders. Although great progress has been achieved in ACTH measurement with immunometric assays, interference may occur and adversely affect the clinical management. The report contributes to compiling the evidence on the clinical challenges with the management of the interferences in the ACTH measurement by presenting three cases: two with clinically overt hypercortisolism and discrepant ACTH concentrations within the reference interval; the third case describes the falsely elevated ACTH in a patient with secondary adrenal insufficiency.

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Purpose: To evaluate the neuroprotective effects of Rilmenidine on diabetic peripheral neuropathy (DPN) in a rat model of diabetes induced by streptozotocin (STZ).

Methods: STZ (60 mg/kg) was administered to adult Sprague-Dawley rats to induce diabetes. On the 30th day after STZ administration, electromyography (EMG) and motor function tests confirmed the presence of DPN.

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Metabolic syndrome (MetS) is a prevalent public health problem. Uric acid (UA) is increased by MetS. We investigated whether administration of UA and 10% fructose (F) would accelerate MetS formation and we also determined the effects of irisin and exercise.

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Purpose: The effects of acromegaly on soft tissues, bones and joints are well-documented, but information on its effects on muscle mass and quality remains limited. The primary goal of this study is to assess the sonoelastographic features of forearm muscles in patients with acromegaly.

Method: Forty-five patients with acromegaly and 45 healthy controls similar in terms of gender, age, and body mass index (BMI) were included in a single-center, multidisciplinary, cross-sectional study.

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Objective: The aim of this study is to evaluate current urologic practice regarding the management of priapism in Turkey and compare with international guidelines.

Methods: Urologists and urology residents were invited to an online survey consisting of 30 multiple-choice questions on priapism-related clinical practices that were consid- ered most important and relevant to practices by using Google Forms.

Results: Total number of responses was 340.

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