Publications by authors named "Ozaslan M"

Sulfonate derivatives are an essential class of compounds with diverse pharmacological applications. This study presents the synthesis and detailed characterization of six novel Schiff base sulfonate derivatives (L-L) through spectroscopic techniques (FT-IR and NMR). Their inhibitory potential was evaluated against human carbonic anhydrase isoenzymes (hCA I and hCA II) and acetylcholinesterase (AChE), which are crucial therapeutic targets for diseases such as glaucoma, epilepsy, and Alzheimer's disease.

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Background: Since January 2015, the Cystic Fibrosis National Newborn Bloodspot Screening (CF-NBS) program has been implemented in Türkiye with two samples of immune reactive trypsinogen (IRT-1/IRT-2) testing.

Aims: To evaluate the Turkish national CF screening program, which included patients referred to a tertiary pediatric pulmonology center, to ascertain the optimal cut-off values for IRT-1/IRT-2 and to identify alternative strategies for mitigating the number of late-diagnosed false-negative patients (FNPs) who initially exhibited screen negative results but were diagnosed subsequently based on clinical suspicion. The study also compared NBS-positive patients to FNPs to determine the influence of delayed diagnosis.

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This study investigates the potential phytochemicals that modulate bovine peroxisome proliferator-activated receptor gamma (PPARγ) and the mitogen-activated protein kinase (MAPK) pathways to enhance milk fat production in dairy animals. Bovine PPARγ, a key member of the nuclear hormone receptor superfamily, plays a vital role in regulating metabolic, cellular differentiation, apoptosis, and anti-inflammatory responses in livestock, while the MAPK pathway is contributory in cellular processes that impact milk fat synthesis. This approach involved an all-inclusive molecular docking analysis of 10,000 polyphenols to identify potential PPARγ ligands.

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Article Synopsis
  • Breast cancer is a leading cause of cancer-related deaths among women globally, and the XRCC2 gene, which is critical for DNA repair, may influence breast cancer risk.
  • Conducted at Zheen International Hospital in Erbil, Iraq, the study analyzed 88 samples, including paired normal and cancer tissues, using advanced techniques like Next-Generation Sequencing and RT-PCR.
  • The findings identified seven inherited variants in the XRCC2 gene, with one likely pathogenic mutation, increased gene expression in tumor tissues, and low DNA methylation rates, suggesting that XRCC2 could serve as a biomarker for breast cancer.
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Patatin-like phospholipase domain-containing lipase 8 (PNPLA8), one of the calcium-independent phospholipase A2 enzymes, is involved in various physiological processes through the maintenance of membrane phospholipids. Biallelic variants in PNPLA8 have been associated with a range of paediatric neurodegenerative disorders. However, the phenotypic spectrum, genotype-phenotype correlations and the underlying mechanisms are poorly understood.

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  • TREM2 is a protein that plays a key role in immune responses and neuroinflammation, with mutations linked to neurodegenerative diseases, particularly Nasu-hakola disease (NHD) that leads to bone lesions and early dementia.
  • Whole-exome sequencing was performed on a family of three siblings suspected to have NHD, revealing a new genetic deletion in the TREM2 gene that correlates with their condition.
  • The study enhances understanding of TREM2's role in various diseases, contributing to better diagnoses and potential therapies for affected individuals.
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Introduction: Flexible bronchoscopy is a valuable method in the diagnosis and treatment of respiratory tract diseases in children. This study aimed to examine the indications for and results of flexible bronchoscopy in children.

Materials And Methods: The study included patients aged 0-18 years who underwent flexible bronchoscopy between 1 January 2017 and 31 December 2022.

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Glutathione S-transferases (GSTs) belong to the superfamily of multifunctional detoxification isoenzymes with an important role in cellular signaling. They can prevent reactive electrophilic compounds from harming the body by covalently binding identical type of moleculs to each other. GSTs can be used alone or in combination for cancer detection or diagnosis, in addition to therapeutic interventions.

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Glucose-6-phosphate dehydrogenase (G6PD) and 6-phosphogluconate dehydrogenase (6PGD) are pentose phosphate pathway enzymes. Compounds with a heterocyclic pyrrole ring system containing this atom can be derivatized with various functional groups into highly effective bioactive agents. In this study, pyrrole derivatives on these enzyme's activity were investigated.

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Objective: A major part of the cytokines secreted from the immune system are interleukins (IL) and their main role is to stimulate the immune system cells. Therefore the genotypic effects of IL-6 and IL-10 on the immune system in CLL were investigated in the study.

Method: For this purpose 100 patients diagnosed with CLL and 70 healthy individuals with no cancer history were included in the study.

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Introduction: At the beginning of December 2019, humanity has faced a new problem caused by coronavirus. In Hubei province of central China, epidemic events associated with severe primary viral pneumonia in humans began to develop. The isolated etiological agent was identified as a representative of family.

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There is a lack of consensus of the frequency of follow-up of laboratory parameters during isotretinoin treatment. We conducted a retrospective analysis of the changes in laboratory parameters used in daily practice for patients with acne who were treated with isotretinoin to determine the optimum test repetition frequency. Patient demographic data; cumulative isotretinoin doses; alanin transaminase (ALT), aspartate transaminase (AST), γ-glutamyltransferase (GGT), creatinine kinase (CK), low-density lipoprotein cholesterol (LDL-C), and triglyceride (TG) levels during treatment were recorded.

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Unlabelled: The SARS-CoV-2 virus targets the antigen converting enzyme 2 () receptor, thus resulting in elevated morbidity and an increased risk of severe and fatal COVID-19 infection in individuals with hypertension and diabetes mellitus.

Objectives: This study aimed to identify the association between increased susceptibility and severity in order to evaluate their impact in hypertensive COVID-19 patients using in vitro and in silico models.

Methods: We identified 80 miRNA binding sites on (for different miRNAs) as well as various 30 SNPs in the miRNA binding sites of the 3' untranslated region (3' UTR) in the gene using different online software and tools.

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Tests which have proven their efficacy and reliability in the follow-up of pemphigus patients are used only on a limited scale or take time to complete due to a lack of technical facilities in several centers. Therefore, more accessible methods are being considered for monitoring disease activity. We aimed to investigate the relationship between platelet function and disease activity based on the change in proinflammatory cytokine profile in pemphigus pathogenesis.

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Article Synopsis
  • Drug-induced liver injury (DILI), primarily caused by acetaminophen (APAP), poses a global health concern, leading to a study on terazosin's (an alpha-adrenergic blocker) potential protective effects in APAP-induced acute liver injury using New Zealand rabbits.
  • Terazosin was administered alongside APAP in rabbits, resulting in improved liver function indicators (ALT and ALP) while positively altering lipid profiles (reducing total cholesterol and triglycerides and increasing HDL levels).
  • The research also indicated that terazosin significantly reduced the expression of the CYP2E1 gene, suggesting its ability to facilitate liver recovery and enhance renal function at both the tissue and molecular levels.
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In the current study, some phenolic compounds, including acteoside, isoacteoside, echinacoside, and arenarioside purified and characterized from Plantago subulata. These compounds were tested for its antioxidant potential, including Fe and Cu reductive ability and Fe chelating effects. The inhibitory effects of isolated phenolic compounds were tested towards human carbonic anhydrase I and II isoenzymes (hCA I and hCA II), butyrylcholinesterase (BChE) acetylcholinesterase (AChE), aldose reductase (AR) and α-glycosidase (α-gly).

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Glutathione-S-transferase (GSTs) is a multifunctional enzyme that provides homeostasis by catalyzing the first step of the formation of mercapturic acid, the end product in detoxification metabolism. They can prevent reactive electrophilic compounds from harming the body by covalently binding the same type of compounds to each other. In this study, we determined the in vitro inhibitory effects of metal ions such as Cu, Cd, Ag, and Co on GST enzyme activity.

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This review was focused on global data analysis and risk factors associated with morbidity and mortality of coronavirus disease 2019 from different countries, including Bangladesh, Brazil, China, Central Eastern Europe, Egypt, India, Iran, Pakistan, and South Asia, Africa, Turkey and UAE. Male showed higher confirmed and death cases compared to females in most of the countries. In addition, the case fatality ratio (CFR) for males was higher than for females.

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Early diagnosis of breast cancer can increase the survivability of the patients and the patient's quality of life. There is growing evidence demonstrating the active role of LncRNA-GAS5 and miR-103 in cancer biology. APOBEC enzymes are important players in immunity and may contribute to carcinogenesis.

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  • Breast cancer is the most prevalent cancer among women globally, and identifying the genetic factors that contribute to its susceptibility, particularly through the MLH3 gene, is crucial for early detection and treatment.
  • This study utilized exome sequencing on 80 samples from breast cancer patients to identify mutations, revealing 26 variants in multiple susceptibility genes, including 22 inherited variants in notable genes like BRCA1 and MLH3.
  • The research found that MLH3 gene expression was significantly reduced in tumor samples compared to normal tissues, particularly in higher grades of breast cancer, suggesting that MLH3 holds potential as a biomarker for assessing breast cancer susceptibility.
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Mutations in CLN3 (OMIM: 607042) are associated with juvenile neuronal ceroid lipofuscinoses (JNCL)-a rare neurodegenerative disease with early retinal degeneration and progressive neurologic deterioration. The study aimed to determine the underlying genetic factors justifying the NCL phenotype in a large Iraqi consanguineous family. Four affected individuals with an initial diagnosis of NCL were recruited.

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Introduction: A smokeless tobacco known as Maras powder (MP) is commonly consumed in the southern region of Turkey. To the extent of our knowledge, no previous study in literature has reported acute MP intoxication in children.

Aim: Our aim was to determine the clinical effects and treatment strategies of MP poisoning in children.

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The process of genetically programmed cell death, or apoptosis, plays a crucialrolein cellular homeostasis and gene expression. Disruption of apoptosis may lead to aberrant immune responses, cancer, and neurodegenerative diseases. Single nucleotide polymorphisms (SNPs) present in various microRNA (miRNA) genes and targets being an alteration of miRNA activity resulting in human diseases.

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Aldose reductase (AR) is the first and rate-limiting enzyme of the polyol pathway, which converts glucose to sorbitol in an NADPH-dependent reaction. α-Glycosidase breaks down starch and disaccharides to glucose. Hence, inhibition of these enzymes can be regarded a considerable approach in the treatment of diabetic complications.

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