Publications by authors named "Kadir Demır"

Pancreatic exocrine insufficiency (PEI) is a prevalent disease that is often underdiagnosed and undertreated, leading to resulting in diminished health-related quality of life. The PEI questionnaire (PEI-Q), a patient-reported outcome questionnaire developed to diagnose and evaluate PEI, is available only in English. The study aimed to provide a Turkish translation of PEI-Q and validate its reliability and diagnostic performance in a Turkish-speaking population with PEI.

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Nonalcoholic fatty liver disease (NAFLD) is a multisystem disease and is significantly associated with obesity, insulin resistance, type 2 diabetes mellitus, metabolic syndrome, and cardiovascular disease. NAFLD has become the most prevalent chronic liver disease in Western countries, and the proportion of NAFLD-related cirrhosis among patients on liver transplantation waiting lists has increased. In light of the accumulated data about NAFLD, and to provide a common approach with multi-disciplines dealing with the subject, it has become necessary to create new guidance for diagnosing and treating NAFLD.

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Background And Aim: Radioembolization (RE) is a one of the palliative treatments that have been used to down stage and/or increase the survival time in intermediate-advanced stages of HCC. We aimed to evaluate the clinical impact of RE and the clinical use of the albumin-bilirubin (ALBI) score as a predictor for survival in HCC patients.

Materials And Methods: Fifty-nine unresectable hepatocellular carcinoma (HCC) patients were enrolled.

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Article Synopsis
  • - Chronic hepatitis B virus (HBV) infection can lead to hepatocellular carcinoma (HCC), and this study explores the methylation status of tumor suppressor genes RASSF1 and CDKN2AIP in patients with HBV-induced liver cirrhosis.
  • - The study involved 47 patients divided into two groups: those with both HCC and liver cirrhosis (22 patients), and those with only liver cirrhosis (25 patients).
  • - Results indicated that methylation levels of the CDKN2AIP gene were significantly lower in patients with HCC, suggesting that cfDNA methylation of these genes could be valuable for diagnosing HCC in HBV cirrhosis patients
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Background: One-third of all extraintestinal manifestations are mucocutaneous findings in patients with Crohn's disease and there is a relationship between some risk factors. Our aim is to evaluate factors associated with mucocutaneous manifestations in our cohort of patients with Crohn's disease with a follow-up duration of up to 25 years.

Methods: In the study, 336 patients with Crohn's disease who were followed up between March 1986 and October 2011 were included.

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Background: Artificial intelligence (AI) has affected our day-to-day in a great extent. Healthcare industry is one of the mainstream fields among those and produced a noticeable change in treatment and education. Medical students must comprehend well why AI technologies mediate and frame their decisions on medical issues.

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Background: Cyclosporine is a rescue treatment alternative to avoid colectomy in corticosteroid refractory acute severe ulcerative colitis. In this study, we aimed to evaluate the long-term efficacy and safety of cyclosporine therapy in acute severe ulcerative colitis patients.

Methods: Acute severe ulcerative colitis (basal Lichtiger score > 10) patients who did not respond to 40 mg intravenous methylpredniso- lone therapy after 3-5 days were included in the study.

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Introduction: There are limited data about the safety of tenofovir disoproxil fumarate (TDF) in chronic renal failure (CRF). In this study, we aimed to evaluate the safety and efficacy of TDF in renal transplant recipients and hemodialysis patients with chronic hepatitis B (CHB) during long-term follow-up.

Material And Methods: CHB patients undergoing hemodialysis (group 1), renal transplant recipients (group 2) and patients with normal renal function were included in the study.

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Article Synopsis
  • A study was conducted on 207 patients with inflammatory bowel disease (IBD) during the COVID-19 pandemic to assess their health and medication management affected by the virus.
  • Out of the participants, 12 were diagnosed with COVID-19, with most experiencing lung issues; many IBD patients had medication changes during this time, particularly with anti-TNF treatments.
  • The findings indicated that the incidence of COVID-19 was relatively low among this group, and most patients diagnosed with the virus were in the active stage of their IBD.
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The novel coronavirus disease (COVID-19) is a highly contagious disease caused by the SARS-CoV-2 virus, leading severe acute respiratory syndrome in patients. Although various antiviral drugs and their combinations have been tried so far against SARS-CoV-2 and they have shown some effectiveness, there is still a need for safe and cost-effective binding inhibitors in the fight against COVID-19. Therefore, phytochemicals in nature can be a quick solution due to their wide therapeutic spectrum and strong antiviral, anti-inflammatory, and antioxidant properties.

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Backgrounds And Aims: In autoimmune hepatitis, there are uncertainties about whether to discontinue the treatment, when the treatment should be discontinued, and the risks of relapse in the cases where remission is achieved with immunosuppressive therapy. In this study, patients with AIH, whose immunosuppressive treatments were discontinued, were evaluated for the rates of remission and the risk of relapse.

Materials And Methods: A total of 119 patients, who were diagnosed with AIH based on the AIHG scoring systems between 1990 and 2015, were evaluated.

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Chronic delta hepatitis (CDH) has a worse outcome than other types of viral hepatitis. High-dose, long-term alpha interferon (IFN-α) is the approved treatment and may ameliorate the course of infection. We evaluated long-term histological outcomes of CDH patients treated with IFN-α.

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The present investigation aims to determine pappus and fruit characters of 21 taxa representing 12 different genera from Turkey. For this reason, present data of pappus and cypsela characters as well as previous results from 21 additional Cardueae taxa have been comparatively evaluated, and a total of 42 taxa were grouped by using cluster and MDS analysis methods. The cluster analysis resolved two main clusters, with five taxa having scale or coroniform pappus as the first-branching group.

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Background: It is unlikely that applications of artificial intelligence (AI) will completely replace physicians. However, it is very likely that AI applications will acquire many of their roles and generate new tasks in medical care. To be ready for new roles and tasks, medical students and physicians will need to understand the fundamentals of AI and data science, mathematical concepts, and related ethical and medico-legal issues in addition with the standard medical principles.

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Wilson's disease (WD) is an autosomal recessive genetic disorder of copper metabolism, and WD patients can present with neurologic symptoms. We aimed to report the general characteristics and prognosis of a Turkish series of WD patients with neurological manifestations. A total of 12,352 patients were screened from the patient database, and 53 WD patients were included.

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Background: Crohn's disease (CD) primarily involves gastrointestinal tract; however, it can present with extraintestinal manifestations (EIMs), which leads to significant morbidity. Frequency of EIMs and associated risk factors vary due to genetic and environmental differences in studies.

Aim: To examine the frequency and risk factors associated with EIMs in CD.

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Purpose: Although the hepatic and neurological consequences of Wilson's disease (WD) have been investigated in detail, its cardiac involvement remains little studied. Our aim was to investigate potential cardiac differences in strain (ST) and strain rate (STR) echocardiography in adult WD patients compared with controls.

Methods: We included 30 patients with WD and a control group of 26 sex and age matched healthy adults.

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Background: Crohn disease is a chronic bowel disease that causes serious complications. Prevalence of Crohn disease is increasing. Studies have shown that the behavior of the disease is not stable and severe complications secondary to behavior change over time have been shown.

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What Is Known And Objective: Propofol is a most commonly used anaesthetic drug for conscious sedation in outpatient procedures. Previous studies have shown that propofol may affect ventricular repolarization based on QT and Tp-e intervals. Frontal QRS-T angle is a marker of ventricular depolarization and repolarization difference.

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Background: Biochemical recurrence (BCR) affects a significant proportion of patients who undergo robotic-assisted laparoscopic prostatectomy (RALP).

Purpose: To evaluate the performance of a routine clinical prostate multiparametric magnetic resonance imaging (mpMRI) and Decipher genomic classifier score for prediction of biochemical recurrence in patients who underwent RALP.

Study Type: Retrospective cohort study.

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Introduction And Objectives: Hepatitis E virus (HEV) is one of the most common causes of acute hepatitis. In recent years, its role in the development of chronic hepatitis and cirrhosis especially in immunosuppressed patients and its wide range of extrahepatic involvement have increased the amount of research on HEV. In this study we aimed to investigate the presence of HEV infection in individuals with cryptogenic cirrhosis.

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Objectives: Isoniazid (INH) prophylaxis is recommended for the prevention of tuberculosis (TB) reactivation before or/and during initiation of treatment with tumour necrosis factor antagonists (anti-TNF agents). Nonetheless, the long-term effectiveness of chemoprophylaxis is not clear. In this study, we aimed to evaluate the characteristics of patients who developed TB reactivation in spite of INH prophylaxis associated with anti-TNF treatment.

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Introduction And Aim: Over the years, there has been a change in the profile of patients with chronic hepatitis C (CHC). In recent years, more patients with CHC have presented to the clinics at the cirrhotic stage, with decompensated liver disease, and with hepatocellular carcinoma. The aim of this study was to investigate the changing epidemiological, clinical, and virological characteristics of CHC patients.

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Introduction: Gastroesophageal reflux disease (GERD) is more frequent in patients with diabetes mellitus (DM).The aim of the present study was to evaluate gastroesophageal reflux (GER) in asymptomatic patients with DM using 24-h pH impedance.

Materials And Methods: 19 healthy controls and 35 patients with DM without typical GERD symptoms were enrolled in the study.

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