373,935 results match your criteria: "Turkey; **Koc University Research Center for Translational Medicine KUTTAM[Affiliation]"

Colistin-resistant (COLR-Ab) is an opportunistic pathogen commonly associated with nosocomial infections, and it is difficult to treat with current antibiotics. Therefore, new antimicrobial agents need to be developed for treatment. Based on this information, we investigated the antimicrobial, antibiofilm, and combination activities of -coumaric acid (-CA), ferulic acid (FA), and -methoxycinnamic acid (-MCA) against five COLR-Ab isolates.

View Article and Find Full Text PDF

Brucellosis is still the most common zoonosis worldwide despite advanced technology and animal husbandry. Since there is still no effective vaccine for humans, it is crucial to control the disease in ruminants through eradication and vaccination. Although some countries around the world have achieved this circumstance, every country aims to become free of Brucellosis through vaccination, animal movements, and various eradication measures.

View Article and Find Full Text PDF

Colic is a leading cause of mortality in horses, demanding precise and timely interventions. This study integrates machine learning and explainable artificial intelligence (XAI) to predict survival outcomes in horses with colic, using clinical, procedural, and diagnostic data. Random forest and XGBoost emerged as top-performing models, achieving F1 scores of 85.

View Article and Find Full Text PDF

Background: Although higher-generation TKIs are associated with improved progression-free survival in advanced NSCLC patients with EGFR mutations, the optimal selection of TKI treatment remains uncertain. To address this gap, we developed a web application powered by a reinforcement learning (RL) algorithm to assist in guiding initial TKI treatment decisions.

Methods: Clinical and mutational data from advanced NSCLC patients were retrospectively collected from 14 medical centers.

View Article and Find Full Text PDF

Background/objectives: Breast cancer is a significant global health concern, and early detection is crucial for improving patient outcomes. Mammography is widely used but has limitations, particularly for younger women with denser breasts. These include reduced sensitivity, false positives, and radiation risks.

View Article and Find Full Text PDF

To evaluate the neoadjuvant chemotherapy (NACTx) process in breast cancer (BC), its significant treatment-related adverse events (trAEs), tumor clinical response rates, and surgical and pathological outcomes, and to analyze factors influencing cavity shaving and axillary lymph node dissection (ALND) following sentinel lymph node biopsy (SLNB). A comprehensive retrospective study was conducted at a single center on patients who received NACTx for BC between 2015 and 2021. Medical records of 242 patients were reviewed.

View Article and Find Full Text PDF

Clinical Insight into Congenital Hypothyroidism Among Children.

Children (Basel)

January 2025

Department of Pediatrics, Division of Pediatric Endocrinology, Izmir Faculty of Medicine, University of Health Sciences, 35210 Izmir, Turkey.

Molecular, genetic, and technological advances have led to increased knowledge regarding neonatal thyroid hormone metabolism disorders. Maternal and fetal hypothyroidism, which can cause psychomotor dysfunction syndromes or low IQ levels, can lead to brain damage, reduced fetal growth and incidental fetal death. The treatment of congenital hypothyroidism detected by screening programs performed during the neonatal period provides normalization of growth, IQ levels, and the physical, mental, and motor development of infants.

View Article and Find Full Text PDF

Background/objectives: Systemic autoimmune rheumatic diseases (SARDs) pose diagnostic challenges, particularly in pediatric populations, due to their diverse presentations and overlapping symptoms. This study aimed to evaluate the diagnostic concordance between indirect immunofluorescence (IIF) at different dilution levels (1/80 and 1/640) and immunoblot findings for anti-centromere antibody (ACA) positivity. Additionally, the clinical significance of ACA positivity and its association with SARDs in pediatric patients was assessed.

View Article and Find Full Text PDF

Background/objectives: Vitamin D helps the mineralization of bone, teeth, and other calcified tissues by regulating calcium-phosphate metabolism. The nuclear activation of the vitamin D receptor () gene is essential for the effectiveness of vitamin D. The main objective of this study is to determine the role of vitamin D levels and gene variants in dental caries.

View Article and Find Full Text PDF

Nanoparticles for Biomedical Use Derived from Natural Biomolecules: Tannic Acid and Arginine.

Biomedicines

January 2025

Department of Chemistry, Faculty of Sciences, Canakkale Onsekiz Mart University, Terzioglu Campus, Canakkale 17100, Turkey.

: Tannic acid (TA) is a well-known natural phenolic acid composed of ten gallic acids linked to each other with ester bonding possessing excellent antioxidant properties in addition to antimicrobial and anticancer characteristics. Arginine (ARG) is a positively charged amino acid at physiological pH because of nitrogen-rich side chain. : Here, poly(tannic acid-co-arginine) (p(TA-co-ARG)) particles at three mole ratios, TA:ARG = 1:1, 1:2, and 1:3, were prepared via a Mannich condensation reaction between TA and ARG by utilizing formaldehyde as a linking agent.

View Article and Find Full Text PDF

The course of relapsing-remitting multiple sclerosis (RRMS) is highly variable and there is a lack of effective prognostic biomarkers. This study aimed to assess the potential prognostic value of the chemokines B lymphocyte chemoattractant molecule (CXCL13), eotaxin-1 (CCL11), and macrophage inflammatory protein 3-alpha (CCL20) in RRMS. Forty-two patients with MS were enrolled, along with 22 controls, 12 of the controls were idiopathic intracranial hypertension (IIH) patients, and 10 of the controls were other neurologic diseases (OND).

View Article and Find Full Text PDF

Excessive Weight Gain During Pregnancy Increased Ponoxarase 1 Level in Neonatal Cord Blood.

Antioxidants (Basel)

January 2025

Department of Medical Biology, Faculty of Medicine, Kocaeli University, Kocaeli 41380, Turkey.

Maternal obesity is increasingly recognized as a risk factor for adverse fetal outcomes, primarily through its association with heightened oxidative stress. This study aimed to evaluate oxidative stress markers in umbilical cord blood of neonates born to obese mothers. Sixty-three pregnant women, who were of normal weight at the start of pregnancy but classified as obese at term, were included.

View Article and Find Full Text PDF

Phytochemical and Bioactivity Evaluation of Bee Pollen and Androecia of , , and Species.

Antioxidants (Basel)

December 2024

Department of Pharmacognosy, Faculty of Pharmacy, Yeditepe University, Kayisdagi Cad., Atasehir, 34755 Istanbul, Türkiye.

Qualitative and quantitative differences in the chemical composition between bee pollen originated from (Türkiye and Slovenia), spp. (Türkiye and Slovenia), and spp. (Türkiye) and androecia of , , and (apetalous trees) were evaluated for the first time by new high-performance thin-layer chromatography (HPTLC) and ultra-performance liquid chromatography (UPLC) methods using marker compounds.

View Article and Find Full Text PDF

Investigation of Heterogeneity to Overcome Trastuzumab Resistance in HER2-Positive Breast Cancer.

Biology (Basel)

December 2024

Department of Medical Biology, Faculty of Medicine, Recep Tayyip Erdogan University, 53100 Rize, Turkey.

HER2-positive breast cancer has an aggressive tumour progression among breast cancers characterized by the overexpression of HER2. Trastuzumab is an FDA-approved drug and has significantly improved outcomes for patients; however, drug resistance remains a major challenge. Tumour heterogeneity, describing genetic, epigenetic, and phenotypic differences within and between tumours, complicates tumour treatment and contributes to drug resistance.

View Article and Find Full Text PDF

This study aimed to examine the effects of endurance and high-intensity resistance training on arterial stiffness and ventricular repolarization in elite athletes. A total of 50 male athletes from different sports disciplines (volleyball, football, judo, and wrestling) and a sedentary group of 30 males participated in this study. Data collected from all participants included age, height, body weight, cardiovascular hemodynamic parameters, arterial stiffness parameters, and ECG measurements.

View Article and Find Full Text PDF

: This study evaluated the prognostic impact of Trop-2, CD47, and CD163 expression on clinical outcomes in triple-negative breast cancer (TNBC) and investigated their interactions with tumor progression. : A retrospective cohort of 92 patients with TNBC was analyzed. The expression scores for Trop-2, CD47, and CD163 were categorized as negative/low (0-3 points) or high (4-6 points).

View Article and Find Full Text PDF

Evaluation of Retinal Changes in Women with Different Phenotypes of Polycystic Ovary Syndrome.

Diagnostics (Basel)

January 2025

Department of Obsetrics and Gynaecology, Faculty of Medicine, Recep Tayyip Erdogan University, Rize 53100, Turkey.

: The aim of our study was to evaluate the retinal nerve fiber layer (RNFL) and macular and choroidal thicknesses in women with different phenotypes of polycystic ovary syndrome (PCOS), and compare these measurements with those of healthy women of reproductive age. : This prospective case-control study included 120 eyes of 120 women with PCOS, with each of the four distinct phenotypes comprising 30 eyes of 30 women. Additionally, 30 eyes from 30 healthy women were included in the control group.

View Article and Find Full Text PDF

: As an endocrine organ, adipose tissue produces adipokines that influence coronary artery disease (CAD). The objective of this study was to assess the potential value of CTRP5 and chemerin in differentiating coronary computed tomography angiography (CCTA)-confirmed coronary artery disease (CAD) versus non-CAD. Secondarily, within the CCTA-confirmed CAD group, the aim was to investigate the relationship between the severity and extent of CAD, as determined by coronary artery calcium score (CACS), and the levels of CTRP5 and chemerin.

View Article and Find Full Text PDF

CABG is a commonly performed procedure to improve survival and quality of life in patients with coronary artery disease. Despite advances in surgical techniques and perioperative care, postoperative pneumonia remains a serious complication contributing to increased morbidity, mortality and healthcare costs. This study aims to evaluate the incidence of postoperative pneumonia (POP) and identify its risk factors in patients undergoing isolated CABG.

View Article and Find Full Text PDF

: Microsatellite-stable (MSS) and microsatellite-instable (MSI) colon cancer (CC) cases have different characteristics. These characteristics may impact the accuracy of abdominal computed tomography (CT) scan examinations in MSI CC. : A retrospective analysis was conducted to examine the effects of MSI CC on patients' clinical and tumor characteristics.

View Article and Find Full Text PDF

The impact of Celiac Disease (CD) is not only limited to the intestinal system, but extraintestinal manifestations may also be seen. In this context, cardiac manifestations have recently been the focus of attention. This study aimed to evaluate myocardial repolarization properties in CD patients by assessing the frontal QRS-T Angle (fQRS-T) on electrocardiography (ECG).

View Article and Find Full Text PDF

Although the cure rates of classical Hodgkin Lymphoma (cHL) are as high as 90% using the current treatment protocols, the prognosis is poor for primary refractory patients. Thus, a biomarker that can predict patients with early progression at the time of diagnosis is an unmet clinical need. Endothelial activation and stress index (EASIX) and its variant modified EASIX (mEASIX) is a scoring system currently used for the prediction of prognosis in hematologic malignancies.

View Article and Find Full Text PDF

: As colorectal cancers are histopathologically and molecularly highly heterogeneous tumors, it is necessary to consider the tumor's microenvironment as well as its cellular characteristics in order to determine the biological behavior of the tumor. This study included 100 patients who underwent resection for colorectal cancer. We aimed to investigate the relationships between the expression status of the HIF-1α, LOX and ITGA5 proteins and clinicopathologic parameters.

View Article and Find Full Text PDF

This study aims to evaluate the quantitative changes in retinal nerve fiber layer (RNFL) thickness and radial peripapillary capillary (RPC) vessel density in patients with chronic central serous chorioretinopathy (CSCR), specifically excluding the peripapillary region. A prospective case-control study was conducted at the Antalya Training and Research Hospital, Health Sciences University, involving 65 patients with chronic CSCR. Participants were categorized into two groups based on the presence or regression of subretinal fluid (SRF).

View Article and Find Full Text PDF

: Fractional Flow Reserve (FFR) is a method that enables the hemodynamic assessment of coronary artery stenosis. The Systemic Inflammatory Response Index (SIRI) is a new marker calculated by multiplying the neutrophil-to-lymphocyte ratio (NLR) with the monocyte count. It is indicative of the presence and severity of coronary artery disease.

View Article and Find Full Text PDF