Tunç, Erdal

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Profile URL
https://hdl.handle.net/20.500.12514/7544
Name Variants
Tunc, Erdal
Job Title
Prof. Dr.
Email Address
erdaltunc@artuklu.edu.tr, terdal0101@gmail.com
Main Affiliation
Department of Basic Medical Sciences / Temel Tıp Bilimleri Bölümü
Status
Current Staff
Website
ORCID ID
0000-0003-4964-1004
Scopus Author ID
23394065900
Turkish CoHE Profile ID
gperson.identifier.yokid
Google Scholar ID
ZRMEcCgAAAAJ
WoS Researcher ID
G-9229-2018
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cv_A-1726_ingilizce.pdf (468.71 KB)
cv_A-1726_turkce.pdf (474.12 KB)

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  • Thumbnail Image
    Article
    Exposure To High-Molecular Polyvinyl Chloride Alters Bacterial Diversity in the Gut Microbiota of the Wistar Rat
    (Middle Pomeranian Sci Soc Env Prot, 2024) Pekmezekmek, Ayper Boga; Emre, Mustafa; Kalay, Betuel; Tunc, Erdal; Kocahan, Sayad; Emre, Nesrin; Emre, Toygar
    The physical and chemical characteristics of microplastics make it easier for contaminants to adhere to the surface of the particles, acting as a vehicle for toxins to reach organisms after ingestion. The "most microbiome" comprises all the microorganisms present in our bodies as a whole because it has a big surface area and provides nutrient-rich components for the digestive system's germs. In this investigation, metagenome analysis was used to determine the impact of long-term administration of High-Molecular Weight-Polyvinyl Chloride microplastics to young Wistar rats on the gut microbiota. Forty adult rats in total were employed, with 15 first-group and 15 second-group experimental groups and 10 controls. Pellets made specifically for feeding rats are produced. Following the procedure, the rats were anaesthetised with ketamine and xylasine before being dissected. Due to the small number of samples, alpha diversity in the gut metagenome study did not demonstrate statistically significant variations, but it did illustrate differences in bacterial diversity and density. In particular, it has been discovered that bacterial diversity is higher in experimental groups. According to the control groups, in the assay groups, the intestinal microbiome, dominated by Escherichia coli, Shigella, and Lactobacillus, was assessed as an increase in metabolic pathways related to microplastic exposure and pathogenicity in general. The findings demonstrate the necessity for extreme caution in the manufacture and use of plastics that pose a risk to the welfare of living things.
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    Conference Object
    Evaluation of the Effect of Hmw-Pvc Microplastic on Rat Internal Organs and Gene Expression Evel
    (Wiley, 2025) Pekmezekmek, Ayper Boga; Emre, Mustafa; Tunc, Erdal; Ilgaz, Seda; Oksuz, Hale; Erdogan, Seyda; Emre, Yilmaz
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    Article
    The Histopathological and Genetic Effects of Long-Term Treatment with High-Molecular Polyvinyl Chloride on Various Organs of Young Wistar Rats
    (MDPI, 2025) Boga Pekmezekmek, Ayper; Emre, Toygar; Tunc, Erdal; Ilgaz, Seda; Oksuz, Hale; Erdogan, Seyda; Emre, Nesrin
    Microplastic particles with a size of less than 5 mm make up a significant component of the plastic pollution in freshwater and the ocean. This study was designed to investigate the effects of eight-week exposure to high-molecular-weight polyvinyl chloride (HMW-PVC) on young rats. A total of 40 rats were divided into two assay groups of 15 rats (Group 1, Group 2, a total of 30 rats) and a control group of 10 rats. The rats in the first and second assay groups were fed with food containing HMW-PVC at rates of 1 and 2% of their weight, respectively. The control group was fed food without HMW-PVC. The rats' weights were recorded every 15 days. After eight weeks of feeding, the rats' intestines, kidneys, and livers were removed and underwent histopathological examinations. Additionally, mRNA expression levels of Cyp3A2, Pepck, and Fasn genes in the liver, UT-A1, UT-A2, renin, and Cyp27B1 genes in the kidney, and Muc2, Fabp2, and PepT1 genes in the intestine were determined by using the RT-PCR technique. Our study revealed that rats exposed to microplastic particles exhibited non-significant weight loss and obvious organ degeneration. Furthermore, mRNA expression levels of the examined genes were either elevated or suppressed by regular exposure to high-molecular-weight PVC.
  • Thumbnail Image
    Conference Object
    Effects of High-Molecular Polyvinyl Chloride on Wistar Rat Gut Microbiota Diversity
    (Wiley, 2025) Pekmezekmek, Ayper Boga; Emre, Mustafa; Tunc, Erdal; Kalay, Betul; Kocahan, Sayad; Emre, Nesrin; Emre, Toygar
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    Article
    Ameloriate Effect of Glucose Monohydrate on Nicotine Sulfate-Induced Toxicity and Teratogenicity in Xenopus Embryos: an Experimental Study
    (Middle Pomeranian Sci Soc Env Prot, 2023) Emre, Mustafa; Tunc, Erdal; Sertdemir, Yasar; Pekmezekmek, Ayper Boga
    It is well documented that nicotine causes low birth weight, preterm birth, pregnancy difficulties, lower fertility, inhibition of spermatogenesis, and decreased steroidogenesis and potassium channels conductance of Xenopus oocytes. Lung cancer is the most well-known adverse impact of nicotine. This work used a 96-hour FETAX test to examine how concurrent administration of glucose monohydrate modifies the effects of exposure to nicotine, nicotine sulfate, and/or glucose on ion channels and membrane potential in Xenopus leavis embryos at an early stage of development. In-vitro fertilised embryos were treated with nicotine and glucose alone or in combination for this aim, and the effects of those treatments were then assessed for potential teratogenic effects. At the conclusion of the FETAX technique, the ratios of healthy, abnormal, and dead embryos were calculated, and the length of embryos in each treatment group was assessed. The ratios of abnormal and dead embryos were considerably higher with nicotine treatment alone compared to controls. Compared to the results of the nicotine-alone treatment group, the ratio of aberrant embryos was marginally reduced by concurrent glucose and nicotine therapy. In contrast, the ratio of normal embryos was raised. Additionally, treatments with glucose, nicotine, and Nic+Glu significantly altered the resting membrane potentials of fertilised oocytes (p < 0.001). Our findings indicated that the simultaneous treatment groups that also received glucose had a protective impact on embryos. Such structured, more sophisticated research is required to confirm these findings.