Publications by authors named "Guelsan Karabay"

Objective: To determine the effects of sunflower seed oil and coconut oil on the skin integrity and weight gain of preterm infants in the neonatal ICU.

Methods: In this randomized controlled trial, 66 preterm neonates (34-37 weeks' gestation) in the neonatal ICU of a training and research hospital were equally divided into three groups: sunflower seed oil, coconut oil, and control. The weights of neonates in all three groups were measured at admission to the neonatal ICU, at discharge, and at 1 month postdischarge.

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Background: Although large language models like ChatGPT-4 have demonstrated competency in English, their performance for minority groups speaking underrepresented languages, as well as their ability to adapt to specific sociocultural nuances and regional cuisines, such as those in Central Asia (for example, Kazakhstan), still requires further investigation.

Objectives: To evaluate and compare the effectiveness of the ChatGPT-4 system in providing personalized, evidence-based nutritional recommendations in English, Kazakh, and Russian in Central Asia.

Methods: This study was conducted from 15 May to 31 August, 2023.

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Objectives: Fournier's gangrene is an aggressive, rapidly progressing, and life-threatening necrotizing fasciitis of the perineal and genital regions. Various scoring systems have been developed for predicting survival and prognosis in Fournier's gangrene. This retrospective study aimed to evaluate the effectiveness of the newly developed Fournier's gangrene mortality index (FGMI) in predicting mortality associated with Fournier's gangrene.

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Purpose: Consumption of cocoa flavanols and caffeine might acutely enhance cognition, particularly in synergy. Due to the use of multifaceted tasks in prior research, it is unclear precisely which cognitive functions are implicated. Here we aimed to assess the acute effects of the (joint) ingestion of cocoa flavanols and caffeine on temporal attention, spatial attention, and working memory.

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(1) Background: Metabolic dysfunction-associated steatotic liver disease (MASLD) is the most common chronic liver disease. Although the changes in the expression levels of microRNAs (miRNAs) in hepatitis B virus-related diseases have been evaluated, no study has evaluated the role of miRNAs in HBV vaccine response in MASLD patients. We aimed to determine the miRNA expression profile in MASLD patients according to HBV vaccine response.

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Domestic violence is a widespread problem in both stable and crisis contexts. During crisis-driven periods, such as environmental, economic, political, and health emergencies, existing gender inequalities are exacerbated, and the risks of violence against women (VAW) are amplified. This qualitative study explores the experiences of professionals working in VAW organisations in a Central Asian country during the COVID-19 pandemic.

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Empathy, defined as the ability to understand and share another person's feelings, is crucial in the healthcare setting, particularly for patients with cancer who face significant psychosocial challenges. We aimed to develop a novel tool, the Empathy, Life with Cancer, and Psychosocial Skills (ELPIS) Scale that prioritizes emotional and cognitive components in order to determine the reflection of the negative stigmatization of cancer in societies on individuals, excluding the behavioral and ethical dimensions of empathy. The study was conducted using a quantitative research design with a sample of first- and second-year medical students in Türkiye.

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Objectives: This study aimed to investigate the relationship between controlling nutritional status index (CONUT) and prognostic nutrition index (PNI) scores that are used to evaluate nutritional status and GDM. Also, lipid abnormalities and albumin levels in pregnant women with normal glucose tolerance and GDM were researched.

Material And Methods: This study was conducted as a retrospective study at Ankara Etlik City Hospital, Turkey.

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Objectives: This study aimed to evaluate the 18-month clinical performance of two different one-step adhesives that were applied alone or with an additional hydrophobic adhesive layer to noncarious cervical lesions.

Methods And Materials: One hundred sixty teeth in 31 patients were included in the study. Each patient received at least four restorations.

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Objective: To compare psychological factors and the number of painful sites between wheelchair basketball athletes (WBA) with and without shoulder pain and examine their associations with shoulder pain.

Design: A cross-sectional, case-control study.

Methods: Forty-three WBA participated.

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To determine the role of sortilin in the pathogenesis of fetal growth restriction (FGR) by examining serum sortilin levels in fetal cord blood. This prospective case-control study was conducted at Ankara Etlik City Hospital between July 2023 and January 2024. Group 1 included 44 pregnant women with late FGR; Group 2 included 44 healthy pregnant women as controls.

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Background: This study investigates the role of Delta Neutrophil Index (DNI), an inflammation marker, in late-onset fetal growth restriction (LO-FGR) and its prediction of composite adverse neonatal outcomes.

Methods: A retrospective study was conducted on 684 pregnant women (456 with normal fetal development and 228 with LO-FGR) who delivered at Health Sciences University Etlik Zubeyde Hanim Women's Health Training and Research Hospital between January 1, 2015, and June 30, 2018. Composite adverse neonatal outcomes were defined as at least one of the following: 5th minute APGAR score < 7, respiratory distress syndrome (RDS), or neonatal intensive care unit (NICU) admission.

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Objective: The aim of this study was to evaluate the potential of immunonutritional markers, specifically the hemoglobin, albumin, lymphocyte, and platelet (HALP) score and the prognostic nutritional index (PNI), in predicting late-onset fetal growth restriction (LO-FGR) during the first trimester.

Materials And Methods: This retrospective study was conducted at a tertiary care center between October 2022 and August 2023. The study included a total of 213 singleton pregnancies, with 99 women in the LO-FGR group and 114 in the healthy control group, matched by maternal age and gestational age at delivery.

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Article Synopsis
  • * Analyzed 56 adult COVID-19 patients revealed that ICU patients had a much higher rate of vitamin D deficiency (56.25%) compared to outpatients (10%) and inpatients (5%), alongside significantly lower VDBP and 25-hydroxyvitamin D levels.
  • * The findings indicate that specific VDBP gene polymorphisms may affect vitamin D levels and COVID-19 severity, suggesting that genetic screening could help identify patients at higher risk for severe outcomes and inform personalized treatment approaches.
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Background: This study aimed to evaluate the umbilical cord blood chondroitin sulfate proteoglycan 4 (CSPG4) concentrations in pregnancies complicated with fetal growth restriction (FGR) and aimed to investigate the rela-tionship between the CSPG4 levels in these pregnancies and adverse neonatal outcomes.

Methods: This prospective case-control study was conducted between August 2023 and January 2024. The study included 80 singleton pregnancies at 35 to 39 weeks of gestation.

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Objective: Among women, breast cancer (BC) is the most prevalent form of cancer. Many molecular targets have been discovered for BC prognosis and treatment. However, new markers still need to be identified, as cancer pathogenesis is triggered by different mechanisms.

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Theories of visual working memory have seen significant progress through the use of continuous reproduction tasks. However, these tasks have mainly focused on studying visual features, with limited examples existing in the auditory domain. Therefore, it is unknown to what extent newly developed memory models reflect domain-general limitations or are specific to the visual domain.

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Objective: To evaluate amniotic fluid volume with Doppler parameters and its association with composite adverse perinatal outcomes (CAPOs) in fetal growth restriction (FGR).

Materials And Methods: This study was conducted prospectively in a tertiary referral center between 2023 and 2024 on pregnant women diagnosed with early- and late-onset FGR. Fetal ultrasonographic measurements, including deepest vertical pocket (DVP) for amniotic fluid, and Doppler parameters including uterine artery (UtA) systolic/diastolic (S/D) and pulsatility index (PI), middle cerebral artery (MCA) S/D and PI, and umbilical artery (UA) S/D and PI, were conducted following fetal biometry.

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Objective: This study aims to evaluate the role of elevated lipoprotein (a) [Lp(a)] levels as a potential contributor to residual risk in individuals with atherosclerotic cardiovascular disease (ASCVD). Considering that approximately 90% of Lp(a) levels are genetically determined and can vary regionally, we assessed Lp(a) levels in a cohort of ASCVD patients from the Turkish population, where data is currently limited.

Methods: We conducted a retrospective analysis of data and Lp(a) measurements collected from individuals diagnosed with ASCVD at a single center.

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Objective: To determine and compare pregnancy outcomes after bilateral uterine artery ligation (BUAL) or bilateral hypogastric artery ligation (BHAL) for postpartum hemorrhage (PPH).

Material And Methods: This retrospective cross-sectional study was conducted from January 2010 to June 2018 at a tertiary referral hospital. Patients who had undergone arterial ligation for PPH were included in the study.

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Background: Our study aimed to investigate the value of inflammatory indices in predicting the latency period until birth in patients with preterm premature rupture of membranes (PPROM).

Methods: This retrospective study was conducted on PPROM cases between 24 and 34 weeks of gestation at Ankara Etlik City Hospital Perinatology Department from October 2023 to April 2024. A total of 146 participants were divided into two groups: Group 1 included 73 patients who gave birth within 72 hours (h) of PPROM diagnosis, and Group 2 included 73 patients who gave birth after 72 h.

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Objectives: To investigate the association between gestational diabetes mellitus (GDM) and blood levels of gelsolin (an inflammation-related protein thought to be reduced in type 2 diabetes mellitus) and to determine its role in potential diagnosis and neonatal outcomes.

Methods: This prospective case-control study was conducted at Ankara Etlik City Hospital between November 2023 and February 2024 with 40 pregnant women with GDM and 40 normoglycemic women. Pregnant women aged 18-40 years who were in their 24th to 28th week of pregnancy and had no known chronic disease were included in the present study and it was investigated as to whether there was a significant difference between the two groups in terms of gelsolin levels and neonatal outcome.

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The CHA₂DS₂-VASc (congestive heart failure, hypertension, age, diabetes mellitus, stroke, vascular disease, sex) scoring system, which includes conventional risk factors of coronary artery disease, was originally created to quantify the risk of thromboembolism in patients with atrial fibrillation. This study evaluated the usefulness of this score to predict adverse outcomes in STEMI (ST-elevation myocardial infarction) patients without atrial fibrillation. Primary end points were identified as MACE (major adverse cardiovascular events) which included in-hospital death or cerebrovascular accident.

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Background: Acute myeloid leukemia (AML) is a heterogeneous ailment in both biological and clinical concepts. Numerous efforts have been devoted to discover natural compounds for combating cancer, which showed great potential in cancer management. Methylsulfonylmethane (MSM), an organosulfur dietary supplement, is utilized for improving various clinical conditions, particularly osteoarthritis.

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