Regorafenib Treatment for Recurrent Glioblastoma Beyond Bevacizumab-Based Therapy: A Large, Multicenter, Real-Life Study.

Background/objectives: In the REGOMA trial, regorafenib demonstrated an overall survival advantage over lomustine, and it has become a recommended treatment for recurrent glioblastoma in guidelines. This study aimed to evaluate the effectiveness and safety of regorafenib as a third-line treatment for patients with recurrent glioblastoma who progressed while taking bevacizumab-based therapy.

Methods: This retrospective, multicenter study in Turkey included 65 patients treated between 2021 and 2023 across 19 oncology centers.

Efficacy and prognostic factors of anti-PD1 and nivolumab-ipilimumab therapy in advanced melanoma patients resistant to prior ICI treatment.

Immune checkpoint inhibitors (ICIs) have significantly improved the five-year survival rate for advanced melanoma. However, many patients exhibit resistance to ICI therapy. This study evaluated the efficacy and prognostic factors of anti-PD-1 (Group A) and nivolumab-ipilimumab (Group B) therapy in patients with advanced melanoma who were resistant to prior ICI therapy.

Investigation of the Weldability of 3D-Printed Multi-Material Materials (PLA and PLA Wood) Using Friction Stir Welding.

In the industry sector, it is very common to have different types of dissimilar materials on the same construction rather than products made from a single type of material. Traditional methods (welding, mechanical fastening, and adhesive bonding) and hybrid techniques (friction stir welding, weld bonding, and laser welding) are used in the assembly or joining of these materials. However, while joining similar types of materials is relatively easy, the process becomes more challenging when joining dissimilar materials due to the structure and properties of the materials involved.

Use of ivabradine in children with junctional ectopic tachycardia after pediatric cardiac surgery; two-centre experience.

Introduction: Although amiodarone is traditionally used in the treatment of postoperative junctional ectopic tachycardia (JET), the search for new treatments is ongoing. We present our experience with ivabradine at two medical centers.

Materials And Methods: Between January 2022 and January 2023, patients who developed JET after pediatric cardiac surgery were prospectively followed up and documented.

The spectrum of esophagitis in patients living with HIV - a scoping review.

Esophageal lesions are common findings in disorders of the digestive tract in patients living with HIV, the most typical symptoms being odynophagia and/or dysphagia. This article provides a narrative review of the spectrum of esophagitis in patients living with HIV, focusing on fungal, viral, bacterial and non-infectious etiologies, as well as co-infections with viral hepatitis viruses. The article provides a comprehensive approach to the strategy of diagnosis and the role of upper digestive endoscopy and histopathological examination in the evaluation of esophageal pathology in patients living with HIV.

Exploring the Frequency and Risk Factors of Hyperprogressive Disease in Patients with Advanced Melanoma Treated with Immune Checkpoint Inhibitors.

Hyperprogressive disease (HPD) is described as the unexpected rapid growth of a tumour accompanied by a decline in performance status. While immune checkpoint inhibitors (ICIs) have improved outcomes in advanced melanoma, HPD remains a significant challenge in a subset of patients. Although HPD has been extensively studied in various solid tumours, research specifically focusing on advanced melanoma remains limited.

Cholecystectomy in children: indications, clinical, laboratory and histopathological findings and cost analysis.

Background: The most common indication for cholecystectomy in children is cholelithiasis, and routine histopathological examination is performed on all gallbladder specimens. Currently, selective histopathological examination is suggested instead of routine examination due to the low frequency of gallbladder cancer in adults. The purpose of this study was to evaluate the indications, clinical, laboratory and histopathological findings of the cholecystectomy in children.

Observational study of immunosuppressive treatment patterns and outcomes in primary membranous nephropathy: a multicenter retrospective analysis.

Background: We evaluated the efficacy of different immunosuppressive regimens in patients with primary membranous nephropathy in a large national cohort.

Methods: In this registry study, 558 patients from 47 centers who were treated with at least one immunosuppressive agent and had adequate follow-up data were included. Primary outcome was defined as complete (CR) or partial remission (PR).

Alpha B-crystallin Ameliorates Imbalance of Redox Homeostasis, Inflammation and Apoptosis in an Acute Lung Injury Model with Rats.

Objective: Ischemia-reperfusion (IR) of the aorta is a significant contributor to the development of postoperative acute lung damage after abdominal aortic surgery. The aim of the present study was to examine the effect of alpha B-crystallin, a small heat shock protein (known as HspB5), on lung injury induced by abdominal aortic IR in rats.

Methods: Male Sprague-Dawley rats were divided into three groups: control, ischemia-reperfusion (IR, 90 min ischemia and 180 min reperfusion), and alpha B-crystallin +IR.

The ameliorative potential of metformin against aluminum-induced neurotoxicity: Insights from in vitro studies.

Alzheimer's disease (AD) is increasingly recognized as a metabolic disorder, often referred to as type 3 diabetes, due to its strong association with insulin resistance. Chronic exposure to aluminum, a known neurotoxin, has been identified as a significant risk factor in the development and progression of AD. This study explores the potential of metformin, a common anti-diabetic drug, to mitigate aluminum-induced neurotoxicity in an in vitro model of AD.

Multi-criteria solar power plant siting problem solution using a GIS-Taguchi loss function based interval type-2 fuzzy approach: The case of Kars Province/Turkey.

The determination of the areas where the solar power plant will be installed is of great importance for the performance of the solar power plant. Solar and hydroelectric energy are the most widely used renewable energy sources in Kars province. Site selection for these power plants is an important factor in terms of reducing the installation cost of the solar power plant and achieving maximum efficiency during operation.

Histopathological analysis of skin adnexal tumors: An experience at a tertiary center.

Background: Skin appendage tumors (SATs) are benign and malignant neoplasms. Although there are many studies on their clinical features and epidemiology in the literature, most of these studies have a small number of patients and are not classified according to the WHO 2018 classification.

Objectives: This study aimed to reveal the clinical and histopathological features of the SATs and compare the pre-diagnosis.

Rare immune-related adverse effect of pembrolizumab: pulmonary hypertension.

Pembrolizumab is an immune checkpoint inhibitor that acts PD-1 blockade. Recent studies have shown its effectiveness in treating various solid organ tumours. However, unlike cytotoxic chemotherapeutic agents, pembrolizumab may cause immune-related adverse effects.

The antitumoral effect of the esculetin in HeLa cells through endoplasmic reticulum stress.

Objective: Despite the multiple available treatment modalities, cervical cancer is one of the leading causes of mortality and morbidity among female gynecological cancers. Endoplasmic Reticulum (ER) is an effective organelle in ensuring cell homeostasis and is closely related to the development of cancer. Esculetin is a coumarin derivative that has anticancer, anti-inflammatory, antioxidant, and neuroprotective effects.

Dimensionality Matters: Exploiting UV-Photopatterned 2D and Two-Photon-Printed 2.5D Contact Guidance Cues to Control Corneal Fibroblast Behavior and Collagen Deposition.

In the event of disease or injury, restoration of the native organization of cells and extracellular matrix is crucial for regaining tissue functionality. In the cornea, a highly organized collagenous tissue, keratocytes can align along the anisotropy of the physical microenvironment, providing a blueprint for guiding the organization of the collagenous matrix. Inspired by this physiological process, anisotropic contact guidance cues have been employed to steer the alignment of keratocytes as a first step to engineer in vitro cornea-like tissues.

Immunosuppressive treatment results in patients with primary IgA nephropathy in Turkiye; the data from TSN-GOLD working group.

Background: Immunoglobulin A (IgA) nephropathy (IgAN) treatment consists of maximal supportive care and, for high-risk individuals, immunosuppressive treatment (IST). There are conflicting results regarding IST. Therefore, we aimed to investigate IST results among IgAN patients in Turkiye.