49 results on '"lipid peroksidasyon"'
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2. Sipermetrine Maruz Kalan Sıçanlarda Baikalinin Lipid Peroksidasyon ve Oksidatif Hasar Üzerine Etkileri.
- Author
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TEKELİ, Muhammet Yasin
- Subjects
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BLOOD proteins , *URIC acid , *CYPERMETHRIN , *OXIDATIVE stress , *GLUTATHIONE , *HEART - Abstract
This study aims to investigate the protective effects of baicalin (BAI) in rats exposed to cypermethrin (CYP). A total of 40 Wistar Albino male rats, 10 in each group, aged 6 to 8 weeks and weighing 180 to 220 g, were utilized for this experiment. The groups were determined, respectively, control, BAI (50 mg kg-1), CYP (25 mg kg-1), and CYP (25 mg kg-1) + BAI (50 mg kg-1). At the end of the 21-day trial period, blood samples were collected from rats by cardiac puncture into test tubes with anticoagulant and non-anticoagulant properties under intraperitoneal ketamine and xylazine anesthesia. Afterward, the rats were sacrificed by cervical dislocation, and the liver, kidney, brain, testis, heart and lung tissues were removed. Glutathione, NO, and MDA levels and GPx, GR, GST, SOD, and CAT enzyme activities in tissue and blood (plasma and erythrocyte) samples were measured on a microplate reader by a spectrophotometry method, whereas LDH, AST, ALT, ALP, triglyceride, cholesterol, albumin, total protein, BUN, uric acid and creatinine levels/activities in serum were measured on a Roche Cobas autoanalyzer. At the end of the experiment, it was determined that the parameters of the BAI group were similar to those of the control group (P>0.05). When the CYP-exposed group was compared to the control group, it was discovered that there was a statistically considerable decrease in tissue GSH levels as well as GPx, GR, GST, SOD, and CAT enzyme activities (P<0.05). A significant increase was recorded in MDA and NO levels (P<0.05). Additionally, while serum total protein and albumin levels decreased, AST, ALT, ALP, LDH, cholesterol, triglyceride, BUN, uric acid, and creatinine levels/activities increased (P<0.05). The effects of CYP were partially or completely ameliorated in the CYP and BAI co-administered group. Consequently, it was revealed that BAI may have a protective effect against CYP-induced oxidative damage in rats by suppressing oxidative stress and promoting antioxidant system activity. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
3. Changes in Germination, Antioxidant Enzyme Activities and Biochemical Contents of Safflower (Carthamus tinctorius L.) Under Different Salinity Levels
- Author
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Ebru Dayan, Muhammet Tonguç, Yaşar Karakurt, and Sercan Önder
- Subjects
germination ,lipid peroxidation ,oxidative stress ,protein ,salt stress ,çimlenme ,lipid peroksidasyon ,oksidatif stres ,tuz stresi ,Science (General) ,Q1-390 - Abstract
The present study was carried out using Dinçer and Olas safflower varieties at 5 different salt (NaCl) concentrations (0, 50, 100, 150, and 200 mM) for 14 days. The germination percentages of the cultivars under salt conditions as well as the activities of antioxidant enzymes (SOD, CAT, POD and APX) and biochemical changes (protein and MDA) in the seedlings were determined. The germination percentage decreased with increased salt concentrations, and the greatest decrease in germination percentage was observed at a 200 mM salt concentration by 34% in both cultivars. The activity of superoxide dismutase (SOD) increased at low salt concentrations, but decreased after 100 and 150 mM salt concentrations, respectively. Catalase (CAT) and ascorbate peroxidase (APX) activities, as well as malondialdehyde (MDA) and hydrogen peroxide (H2O2) contents, increased with increasing salt concentrations at Dinçer and Olas, but total soluble protein content decreased with increasing salt concentration. Peroxidase (POD) activity was not significantly affected by salt stress in safflower. Germination percentage showed negative correlations with CAT, MDA and H2O2 levels, and showed a positive correlation with soluble protein content under salt stress in safflower. The present results may be useful to identify mechanisms of salt tolerance involving antioxidant enzyme activities and biochemical changes in safflower seedlings.
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- 2022
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4. Anatomical, Micromorphological, Karyological and Biochemical study of Scutellaria orientalis subsp. virens and Scutellaria salviifolia.
- Author
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AÇAR, Mikail, TAŞAR, Neslihan, and AKBULUT, Gülçin BEKER
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SCUTELLARIA ,CHROMOSOMES ,CHLOROPHYLL ,MALONDIALDEHYDE ,CAROTENOIDS - Abstract
Copyright of Journal of Agriculture & Nature / Kahramanmaraş Sütçü İmam Üniversitesi Tarım & Doğa Dergisi is the property of Kahramanmaras Sutcu Imam Universitesi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
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- View/download PDF
5. Sıçanlarda İndometazin ile İndüklenen Mide Ülseri Üzerine Badem ve Elma Yağının Koruyucu Etkileri.
- Author
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AYDIN BERKTAŞ, Özlem and ATALAY DUMLU, Fadime
- Subjects
THERAPEUTIC use of essential oils ,UNSATURATED fatty acids ,EXPERIMENTAL design ,BIOCHEMISTRY ,APPLES ,ANIMAL experimentation ,ANTI-inflammatory agents ,PHENOMENOLOGICAL biology ,INDOMETHACIN ,RATS ,FAMOTIDINE ,PEPTIC ulcer ,ALMOND ,ANIMALS ,LIPID peroxidation (Biology) - Abstract
Copyright of Balikesir Health Sciences Journal / Balıkesir Sağlık Bilimleri Dergisi is the property of Balikesir Health Sciences Journal (BAUN Health Sci J) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
- Full Text
- View/download PDF
6. Changes in Germination, Antioxidant Enzyme Activities and Biochemical Contents of Safflower (Carthamus tinctorius L.) Under Different Salinity Levels.
- Author
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ÖNDER, Sercan, DAYAN, Ebru, KARAKURT, Yaşar, and TONGUÇ, Muhammet
- Subjects
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SAFFLOWER , *SALINITY , *SUPEROXIDE dismutase , *ENZYMES , *HYDROGEN peroxide , *CATALASE , *CULTIVARS - Abstract
The present study was carried out using Dinçer and Olas safflower varieties at 5 different salt (NaCl) concentrations (0, 50, 100, 150, and 200 mM) for 14 days. The germination percentages of the cultivars under salt conditions as well as the activities of antioxidant enzymes (SOD, CAT, POD and APX) and biochemical changes (protein and MDA) in the seedlings were determined. The germination percentage decreased with increased salt concentrations, and the greatest decrease in germination percentage was observed at a 200 mM salt concentration by 34% in both cultivars. The activity of superoxide dismutase (SOD) increased at low salt concentrations, but decreased after 100 and 150 mM salt concentrations, respectively. Catalase (CAT) and ascorbate peroxidase (APX) activities, as well as malondialdehyde (MDA) and hydrogen peroxide (H2O2) contents, increased with increasing salt concentrations at Dinçer and Olas, but total soluble protein content decreased with increasing salt concentration. Peroxidase (POD) activity was not significantly affected by salt stress in safflower. Germination percentage showed negative correlations with CAT, MDA and H2O2 levels, and showed a positive correlation with soluble protein content under salt stress in safflower. The present results may be useful to identify mechanisms of salt tolerance involving antioxidant enzyme activities and biochemical changes in safflower seedlings. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
7. The effect of dietary supplementation of natural antioxidants and coated calcium butyrate on carcass traits, serum biochemical parameters, lipid peroxidation in meat and intestinal histomorphology in broilers.
- Author
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GÜMÜŞ, Erinç, KÜÇÜKERSAN, Seher, BAYRAKTAROĞLU, Alev Gürol, and SEL, Tevhide
- Subjects
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VITAMIN E , *BUTYRATES , *GRAPE seed extract , *DIETARY supplements , *INTESTINES , *GREEN tea , *MEAT - Abstract
The aim of this study was to investigate the effects of vitamin E, grape seed extract and green tea extract with or without supplementation of coated calcium butyrate in broilers based on carcass traits, some biochemical parameters, intestinal histomorphology, and lipid peroxidation in meat. Two hundred fifty-two one-day-old broiler chicks were divided into nine groups, one control and eight experimental. Control group fed only a basal diet (control). The experimental groups' diets contained feed additives as; coated calcium butyrate (CCB), vitamin E (VitE), grape seed extract (GSE), green tea extract (GTE), a combination of vitamin E with coated calcium butyrate (VitE+CCB), grape seed extract with coated calcium butyrate (GSE+CCB), green tea extract with coated calcium butyrate (GTE+CCB), and a combination of grape seed extract, green tea extract, and coated calcium butyrate (GSE+GTE+CCB) respectively. According to the study results; no significant differences were observed in gut histomorphology and serum biochemical parameters. The broilers fed with GSE and GTE with/without CCB had significantly higher hot carcass yield than control, VitE, and VitE+CCB. Furthermore, all groups showed significantly lesser lipid peroxidation in meat than control; however, the VitE group had the lowest malondialdehyde (MDA) levels. It can be concluded that the combination of CCB with natural antioxidants could be used to improve carcass traits and meat antioxidant capacity in broilers. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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8. Immunohistochemical Investigation of Oxidative Stress-induced DNA Damage and Lipid Peroxidation in Bovine Papillomas and Fibropapillomas.
- Author
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KARAKURT, Emin
- Subjects
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DNA damage , *MALONDIALDEHYDE , *PEROXIDATION , *FORMALDEHYDE , *CELL nuclei , *LIPIDS , *IMMUNOSTAINING - Abstract
In this study, it was aimed to evaluate the expressions of 8-OHdG and MDA immunohistochemically in order to determine the oxidative stress-induced DNA damage and lipid peroxidation in 16 papillomas and 14 fibropapillomas from 30 cattle brought to our department between 2013-2020. Biopsy samples taken after surgery were fixed in buffered 10% formaldehyde solution. Sections of 5 µm thickness were taken from the paraffin blocks prepared after routine tissue follow-up procedures and Hematoxylin & Eosin staining was applied to the sections in order to detect histopathological changes. Avidin Biotin Peroxidase method was used for immunohistochemical staining. In papilloma cases, severe hyperkeratosis, retepects extending from the epidermis to the dermis, spongiosis and balloon-like degeneration in squamous epithelial cells, basophilic inclusion bodies in granular cells, ulcerations in the epidermis layer, hemorrhagic areas and an increase in kerato hyaline granules were observed. In addition to these findings, dense connective tissue increases were detected in fibropapilloma cases. In immunohistochemical evaluations, positive reactions for BPV were observed in the nuclei of cells in stratum granulosum. 8-OHdG positive reactions were detected in the cytoplasm and nucleus of the epidermal cells in papilloma cases, whereas in cases of fibropapilloma, reactions in these cells were observed in the cytoplasm of fibrocytes and fibroblasts in the dermis. Membranous MDA positive reactions were observed in the epidermal cells in papilloma cases, whereas MDA expressions were detected in the cytoplasm of fibrocytes and fibroblasts in the dermis of fibropapilloma cases. As a result of the literature reviews, no study data was found in which DNA damage due to oxidative stres and lipid peroxidation was detected by means of 8-OHdG and MDA expressions in papilloma and fibropapilloma cases of cattle, it is thought that the findings obtained in this study will contribute to the literature. In addition, it has been concluded that oxidative stress plays an important role in the pathogenesis of this tumor. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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9. Akut yüzme egzersizi yaptırılan diyabetik sıçanlarda intraperitoneal çinko sülfat uygulamasının kas dokusundaki lipid peroksidasyonuna etkisi
- Author
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Sadettin Ünsal and Mürsel Biçer
- Subjects
çinko ,diyabet ,kas doku ,lipid peroksidasyon ,egzersiz ,zinc ,diabetes ,muscle tissue ,lipid peroxidation ,exercise ,Medicine (General) ,R5-920 - Abstract
Amaç: Bu çalışmanın amacı, streptozotosin ile diyabet oluşturulmuş akut yüzme egzersizi yaptırılan sıçanlarda çinko uygulamasının kas dokusundaki lipid peroksidasyonu ve antioksidan kapasite üzerindeki etkisinin araştırılmasıdır.Gereç ve Yöntem: Spraque-Dawley cinsi 80 adet erişkin erkek ratlar kullanılan çalışmada. deney hayvanları eşit sayıda 8 gruba ayrıldı: Grup 1, genel kontrol. Grup 2, çinko uygulanan kontrol. Grup 3, çinko uygulanan diyabetli kontrol. Grup 4, yüzme kontrol. Grup 5, çinko uygulanan yüzme. Grup 6, çinko uygulanan diyabetli yüzme. Grup 7, diyabetli yüzme. Grup 8, diyabet grubu. Diyabet oluşturmak için hayvanlara 40 mg/kg dozunda intraperitoneal ip streptozotosin STZ enjekte edildi. Enjeksiyonlar 24 saat sonra aynı dozda tekrarlandı. Son enjeksiyonlardan 6 gün sonra kan glukozu 300 mg/dl ve üzerinde olan hayvanlar diyabetik olarak kabul edildi. Hayvanlara 4 hafta boyunca 6 mg/kg/gün ip çinko sülfat verildi. Dört hafta süren çalışmanın bitiminde deney hayvanlarından dekapitasyonla alınan kas doku örneklerinde MDA nmol/gram/ protein ve GSH mg/dl/gram protein düzeyleri tayin edildi. Bulgular: Kas dokusundaki en yüksek MDA değerleri grup 4 ve 7’de elde edildi. Grup 5 ve 6’nın kas MDA seviyeleri grup 4 ve 7’den düşük, diğer grupların tamamından yüksekti. Grup 5 ve 6 en yüksek kas GSH değerlerine sahipti. Grup 4’ün aynı parametresi grup 5 ve 6’dan düşük diğer grupların tamamından daha yüksekti. Kas dokusundaki en düşük GSH düzeyleri Grup 7 ve 8’de elde edildi.Sonuç: Çalışmanın sonuçları diyabetik sıçanlarda zorlu yüzme egzersizinin yol açtığı kas dokusundaki lipit peroksidasyonu üzerinde intraperitoneal çinko sülfat uygulamasının koruyucu rolü olduğunu göstermektedir
- Published
- 2018
10. Nil Tilapyası, Oreochromis niloticus (Linnaeus, 1758) Karaciğer Dokusunda Kurşunun Neden Olduğu Oksidatif Strese Karşı Humik Maddelerin Koruyucu Etkisi
- Author
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Ferbal Özkan Yılmaz, Zülfiye Su, Arzu Özlüer-Hunt, Metin Yıldırım, and Serap Yalın
- Subjects
Oreochromis niloticus ,kurşun ,humik madde ,antioksidan sistem ,Lipid peroksidasyon ,Agriculture ,Agriculture (General) ,S1-972 - Abstract
Bu araştırmada, subletal kurşun (Pb) derişiminin Nil tilapyası (Oreochromis niloticus)’nda antioksidan enzim sistemi üzerine etkilerine karşı, yeme katılan humik maddenin koruyucu etkisi incelenmiştir. Bu amaçla 1,5 mg/L kurşun nitrat Pb(NO3)2 ortam derişimi etkisindeki balıklar, %0,2 oranında humik madde katkısı bulunan yem ile beslenmişlerdir. Kontrol grubu, humik madde (HM), Pb, ve Pb+HM grublarını içeren bu çalışmada 4. ve 10. günlerde karaciğer doku örnekleri alınmıştır. Karaciğer dokusu katalaz (CAT) ve süperoksit dismutaz (SOD) enzim aktiviteleri ve lipid peroksidasyon ürünü olan malondealdehit (MDA) seviyesi, kontrol grubu ile karşılaştırıldığında, subletal kurşun derişimi uygulanan grupta 4. ve 10. günlerde önemli oranda arttığı belirlenmiştir. Pb grubu ile HM+Pb grubu karşılaştırıldığında, CAT ve SOD aktivitesinde önemli bir değişime neden olmadığı, ancak humik madde uygulamasının karaciğer dokusu lipid peroksidasyonu üzerine Pb toksisitesinin etkisini azalttığı belirlenmiştir. Deneme sonuçlarına göre, yeme ilave edilen %0,2 humik madde, 1,5 mg/L Pb ortam derişiminin, O. niloticus karaciğer dokusu lipid peroksidasyon üzerindeki toksisitesini belirli düzeyde azalttığı belirlenmiştir.
- Published
- 2018
- Full Text
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11. Van Bölgesinde Yetişen Allium schoenoprasum L. Bitkisinin Toplam Flavonoid, DPPH Radikal Söndürme, Lipid Peroksidasyonu ve Antimikrobiyal Aktivitesinin Araştırılması.
- Author
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KOÇAK, Yılmaz, OTO, Gökhan, MEYDAN, İsmet, and ŞEÇKİN, Hamdullah
- Subjects
HYDROXY acids ,PATHOGENIC microorganisms ,PATHOGENIC bacteria ,ENTEROCOCCUS faecalis ,PLANT extracts ,CANDIDA albicans ,ENTEROCOCCUS - Abstract
Copyright of Yuzuncu Yil Universitesi Journal of Agricultural Sciences (YYU J Agr Sci) is the property of Yuzuncu Yil University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2020
- Full Text
- View/download PDF
12. The Effect of Green Tea Extract Supplementation in Bull Semen Cryopreservation.
- Author
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İNANÇ, Muhammed Enes, ÇİL, Beste, YENİ, Deniz, AVDATEK, Fatih, ORAKÇI, Durmuş, TUNCER, Pürhan Barbaros, TÜRKMEN, Ruhi, and TAŞDEMİR, Umut
- Subjects
- *
FROZEN semen , *TEA extracts , *GREEN tea , *SEMEN , *SEMEN analysis , *CRYOPRESERVATION of organs, tissues, etc. - Abstract
This study aims to investigate the effect of catechin (CT), green tea extract, as a supplement to Tris extender on semen quality parameters in frozen-thawed of bull sperm. Ejaculates were taken with artificial vagina from Holstein bulls and divided equal five aliquots, diluted to containing different amounts of CT (5, 10, 25 and 50 µg/mL) and no-additive (control). All samples were equilibrated at 4°C for 4 h and were frozen using a digital freezing machine. Post-thawed sperm motility and kinetic parameters were determined using the sperm analyser system. Spermatozoa DNA integrity was evaluated with the single cell gel electrophoresis, abnormal spermatozoa rate was evaluated by fluid fixation test and lipid peroxidation status was evaluated colorimetrically. CT supplementation did not improve motility and kinetic parameters. However, the higher morphological integrity was detected in CT10, 25 and 50 groups compared to control (P<0.05). Regarding chromatin integrity, positive effects of catechin were observed in the treatment groups while in CT 50 group adverse effects were found (P<0.05). Although there was no improvement in malondialdehyde levels, the highest total antioxidant activity was seen in the CT50 group (P<0.05). In conclusion, CT supplementation could be used the protection of morphological and DNA integrity from cryodamage and it has increased the total antioxidant activity depending of the dose in bull semen. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
13. Akut yüzme egzersizi yaptırılan diyabetik sıçanlarda intraperitoneal çinko sülfat uygulamasının kas dokusundaki lipid peroksidasyonuna etkisi*.
- Author
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Biçer, Mürsel and Ünsal, Sadettin
- Abstract
Objective: The objective of the present study is to explore the effect of zinc supplementation on lipid peroxidation and antioxidant capacity in the muscle tissue of rats which were induced diabetes with streptozotocin and subjected to acute swimming exercise. Material and Method: The study included 80 adult, male, Spraque-Dawley type rats, which were equally allocated to 8 groups. Group 1, general control. Group 2, zinc-supplemented control. Group 3, zinc-supplemented diabetic control. Group 4, swimming control. Group 5, zinc-supplemented swimming. Group 6, zinc-supplemented diabetic swimming. Group 7, diabetic swimming. Group 8, diabetes group. The animals were injected with 40 mg/kg intraperitoneal (ip) streptozotocin (STZ) to induce diabetes. The injections were repeated after 24 hours. The animals whose blood glucose stood at or over 300 mg/dl on day 6 following the last injection were considered diabetic. The animals were supplemented with 6 mg/kg/day ip zinc sulfate for 4 weeks. At the end of the 4-week study, the animals were decapitated to collect muscle tissue samples, which were analyzed in terms of MDA (nmol/gram/protein) and GSH (mg/dl/gram protein) levels. Results: The highest MDA values in the muscle tissue were established in groups 4 and 7. Muscle MDA levels in groups 5 and 6 were lower than those in groups 4 and 7, but higher than the levels in all other groups. Groups 5 and 6 had the highest muscle GSH values. Group 4 had this parameter lower than groups 5 and 6, but higher than others. The lowest GSH levels in the muscle tissue were obtained in groups 7 and 8. Conclusion: Results of the study demonstrate that zinc sulfate supplementation has a protective role against lipid peroxidation caused by strenuous swimming exercise in the muscle tissue of diabetic rats. [ABSTRACT FROM AUTHOR]
- Published
- 2018
14. Civa ile oksidatif stres oluşturan ratlarda polydatinin etkisinin belirlenmesi
- Author
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İçyer, Duygu, Acaröz, Ulaş, and İçyer, Duygu
- Subjects
Lipid Peroksidasyon ,Oksidatif Stress ,Civa ,Rat - Abstract
Bu çalışmada, civa (Hg) ile oksidatif stres oluşturan ratlarda polydatinin etkisi araştırıldı. 35 adet wistar albino cinsi rat beş gruba ayrıldı. Grup I negatif kontrol ve Grup II pozitif kontrol olarak belirlendi. Pozitif kontrol grubuna 7. gün sonunda 5mg/kg dozunda civa tek doz intraperitoneal olarak verildi. III, IV ve V. gruplara sırasıyla 25mg/kg, 50 mg/kg, 100mg/kg dozlarda polydatin 7 gün boyunca gastrik gavaj yoluyla verildi ve bu gruplara 7. gün sonunda 5mg/kg civa tek doz intraperitoneal olarak verildi. Ratlardan alınan kan, karaciğer, beyin, böbrek, akciğer, kalp ve testis doku örneklerinde antioksidan enzim aktiviteleri (katalaz CAT ve süperoksitdismutaz, SOD), redükte glutatyon (GSH) ve malondialdehit (MDA) seviyeleri belirlendi. Ayrıca, histopatolojik incelemeler gerçekleştirildi. Böbrek ve karaciğer örneklerinde TNF-α, IFN- γ ve NF-kB yangısal genlerinin moleküler analizi gerçekleştirildi. Civa uygulaması rat dokularında antioksidan enzim aktivitelerinde azalmaya neden oldu. Ayrıca, GSH düzeylerinde de azalmaya sebep oldu. Bununla birlikte, MDA düzeyini yükseltti. TNF-α, IFN- γ ve NF-kB ekspresyon düzeylerini yükseltti ve doku hasarına neden oldu. Polydatin uygulaması artan dozlarda koruyucu etki gösterdi. Sonuç olarak, civa uygulamasıyla meydana gelen oksidatif strese karşı polydatinin koruyucu etki gösterdiği belirlendi. This study aimed to determine the effect of polydatin in rats that caused oxidative stress by mercury (Hg). 35 Wistar albino rats were divided into five groups. Group I was determined as negative control and Group II as positive control. At the end of the 7th day, a single dose of 5mg/kg mercury was administered intraperitoneally to the positive control group. Groups III, IV, and V were given 25mg/kg, 50mg/kg, and 100mg/kg doses of polydatin, respectively, for 7 days by gastric gavage, and at the end of the 7th day, a single dose of 5mg/kg mercury was given intraperitoneally. Antioxidant enzyme activities (catalase CAT and superoxide dismutase, SOD), reduced glutathione (GSH) and malondialdehyde (MDA) levels were determined in blood, liver, brain, kidney, lung, heart and testes tissue samples taken from rats. In addition, histopathological examinations were performed. Molecular analysis of IFN-γ, TNF-α and NF-kB inflammatory genes was performed in kidney and liver samples. Mercury application caused a decrease in antioxidant enzyme activities in rat tissues. It also caused a decrease in GSH levels. However, it did raise the MDA level. It increased the expression levels of TNF-α, IFN-γ and NF-kB and caused tissue damage. Polydatin administration showed a protective effect at increasing doses. Consequently, it was determined that polydatin had a protective effect against oxidative stress caused by mercury application. Bu tez çalışması; Afyon Kocatepe Üniversitesi Bilimsel Araştırma Projeleri Koordinasyon Birimi (BAPK) Tarafından Desteklenmiştir. Proje No: “20.SAĞ.BİL.28”
- Published
- 2022
15. Malathion ile oksidatif stres oluşturulan ratlarda ferulik asitin etkisinin belirlenmesi
- Author
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Genay, Sermet, Acaröz, Ulaş, and Genay, Sermet
- Subjects
Oksidatif Stres ,Lipid Peroksidasyon ,Malathion ,Wistar Albino Rat ,Ferulik Asit - Abstract
Malathion yaygın olarak kullanılan organofosfatlı bir pestisittir. Bu madde, zirai alanda yararları olduğu kadar biliçsiz kullanımı halk sağlığını ve ekosistemi olumsuz etkileyecek zararlara da neden olabilir. Bu çalışmada malathion ile oksidatif stres oluşturan ratlarda, ferulik asitin olası koruyucu etkisinin araştırılması amaçlandı. Çalışmada 42 adet Wistar Albino Rat kullanıldı ve altı farklı grup oluşturuldu; Birinci Grup negatif kontrol, 2. grup yağ grubu, 3. grup pozitif kontrol (30 gün boyunca oral yolla 27 mg/kg dozunda malathion verildi.) olarak belirlendi. Ayrıca diğer 4, 5, 6. gruplara da 30 gün süreyle, günde bir defa olacak şekilde oral yolla 27 mg/kg malathion ile beraber sırasıyla günde 12,5 mg/kg, 25 mg/kg, 50 mg/kg dozunda gastrik gavaj yoluyla ferulik asit uygulandı. 30 gün süren çalışmanın sonucunda ratlardan alınan kan, kalp, karaciğer, böbrek, beyin, akciğer ve testis dokularında antioksidan enzim aktiviteleri (SOD, CAT), lipid peroksidasyon (MDA), glutatyon (GSH) değerleri analiz edildi ve histopatolojik incelemeler gerçekleştirildi. Ayrıca ratlardan alınan karaciğer ve böbrek doku örneklerinden IFN- γ, TNF-α ve NFkB proinflamatuvar genlerinin moleküler analizi gerçekleştirildi. Malathion uygulaması antioksidan enzim aktivitelerinde azalmaya neden oldu. Ayrıca, malathion uygulaması glutatyon seviyelerinide azalmaya neden olurken lipid peroksidasyon seviyelerini yükseltti. Proinflamatuvar genlerin ekspreyon düzeylerinde artışa neden oldu ve dokularda histopatolojik değişikliklere neden oldu. Ferulik asit uygulaması bu olumsuz etkileri tersine çevirdi ve en yüksek etkisi 50 mg/kg dozda görüldü. Çalışma sonucunda, malathion tarafından indüklenen oksidatif strese karşı doğal antioksidan olan ferulik asitin etkili bir koruyucu olduğu tespit edildi Malathion is a widely used organophosphate pesticide. While this substance has benefits in the agricultural field, its unconscious use may also cause harm that will adversely affect public health and the ecosystem. In this study, it was aimed to investigate the possible protective effect of ferulic acid in rats that caused oxidative stress with malathion. In the study, 42 Wistar Albino Rats were used and six different groups were formed; Group 1 was determined as negative control, Group 2 as oil group, Group 3 as positive control (27 mg/kg malathion was given orally for 30 days). In addition, the other 4th, 5th, and 6th groups were administered orally, once a day for 30 days, with 27 mg/kg malathion and ferulic acid was applied by gastric gavage at a dose of 12.5 mg/kg, 25 mg/kg, and 50 mg/kg per day, respectively. As a result of the study that lasted for 30 days, antioxidant enzyme activities (SOD, CAT), lipid peroxidation (MDA), glutathione (GSH) values were analyzed and histopathological examinations were performed in blood, heart, liver, kidney, brain, lung and testes tissues taken from rats. In addition, molecular analysis of IFN-γ, TNF-α and NFkB proinflammatory genes was performed from liver and kidney tissue samples taken from rats. Malathion application caused a decrease in antioxidant enzyme activities. In addition, malathion administration caused a decrease in glutathione levels and increased lipid peroxidation levels. It caused an increase in the expression levels of proinflammatory genes and caused histopathological changes in tissues. Ferulic acid administration reversed these negative effects and the highest effect was seen at 50 mg/kg dose. As a result of the study, it was determined that ferulic acid, a natural antioxidant, has a protective effect against oxidative stress induced by malathion. Bu tez çalışması; Afyon Kocatepe Üniversitesi Bilimsel Araştırma Projeleri Koordinasyon Birimi (BAPK) Tarafından Desteklenmiştir. Proje No: “20.SAĞ.BİL.26”
- Published
- 2022
16. Sodyum florür ile oksidatif stres oluşturulan ratlarda polydatinin etkisinin araştırılması
- Author
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Can, Öznur, Acaröz, Ulaş, and Can, Öznur
- Subjects
Oksidatif Stres ,Lipid Peroksidasyon ,Polydatin ,Rat ,Sodyum Florür - Abstract
Oldukça reaktif bir element olan flor, halojen bir elementtir. Flor, diş ve kemik metabolizması için önemli ve dışarıdan alınması gereken elementlerden biridir. Ancak flor alımının dozdan bağımsız olarak zararlı etkileri olduğuna yönelik yaygın bir yanlış algı vardır. Resveratrolün bir glikoziti olan polydatin anti-inflamatuar ve antioksidan dahil olmak üzere çeşitli biyolojik fonksiyonlar sergiler. Günümüzde araştırmacılar tarafından hücre koruyucu etkilerinin olduğu bildirilen polydatinin antioksidan ajan olarak oksidan maddelere karşı kullanımı sıklıkla incelenen bir konu olmuştur. Bu çalışmada ratlarda florid kaynaklı oluşturulan oksidatif strese karşı polydatinin koruyucu etkisinin araştırılması amaçlandı. Bu amaçla ratlara içme suyu ile 600 ppm NaF ad libitum olarak verildi. Tedavi grubuna polydatin 25; 50; 100 mg/kg dozda gastrik gavaj yoluyla uygulandı. 14 gün süren çalışmanın sonucu hayvanlardan elde edilen kan, kalp, karaciğer, böbrek, beyin, testis ve akciğerden SOD, MDA, CAT, GSH değerleri analiz edilerek incelendi. Alınan doku örneklerinin histopatolojik incelemeleri yapıldı. Serumda AST, ALT ve ALP düzeyleri ölçüldü. Bununla birlikte, IFN-γ, TNF-α and NFkB yangısal genlerinin ekspresyon düzeyleri incelendi. Ratların tüm dokularında sodyum florür lipit peroksidasyonunu uyararak CAT, SOD ve GSH seviyelerini azalttı. Ayrıca, MDA, AST, ALP ve ALT düzeylerini yükseltti. Polydatin uygulaması SOD, CAT ve GSH değerlerini kontrole yaklaştırdı ve MDA seviyesini azalttı. Aynı zamanda polydatin uygulaması serum AST, ALT ve ALP değerlerini kontrol grubuna yaklaştırdı. Çalışma sonucunda sodyum florür uygulamasıyla oluşturulan oksidatif stres üzerinde doğal bir antioksidan olan polydatinin koruyucu etki gösterdiği belirlendi. Fluoride, a highly reactive element, is a halogen element. Fluoride is one of the elements that are important for tooth and bone metabolism and must be taken from outside. However, there is a common misconception that fluorine intake has harmful effects regardless of dose. Polydatin, a glycoside of resveratrol, exhibits a variety of biological functions, including anti-inflammatory and antioxidant. Today, the use of polydatin, which is reported to have cell-protective effects by researchers, as an antioxidant agent against oxidant substances has been a frequently studied subject. In this study, it was aimed to investigate the protective effect of polydatin against sodium fluoride-induced oxidative stress in rats. For this purpose, 600 ppm NaF was given ad libitum to the rats with drinking water. Polydatin was given to the treatment groups at the doses of 25; 50; 100 mg/kg by gastric gavage. In the 14 days study, SOD, MDA, CAT, GSH values from blood, heart, liver, kidney, brain, testis and lung obtained from animals were analyzed. Histopathological examinations of the tissue samples were performed. AST, ALT and ALP levels were measured in serum. In addition, the expression levels of IFN-γ, TNF-α and NFkB inflammatory genes were examined. Sodium fluoride stimulated lipid peroxidation and decreased CAT, SOD and GSH levels in all tissues of rats. It also increased MDA, AST, ALP, and ALT levels. Polydatin application brought SOD, CAT and GSH values closer to control and decreased MDA levels. At the same time, polydatin application brought serum AST, ALT and ALP values closer to the control group. As a result of the study, it was determined that polydatin, a natural antioxidant, had a protective effect on the oxidative stress created by sodium fluoride application. Fluoride, a highly reactive element, is a halogen element. Fluoride is one of the elements that are important for tooth and bone metabolism and must be taken from outside. However, there is a common misconception that fluorine intake has harmful effects regardless of dose. Polydatin, a glycoside of resveratrol, exhibits a variety of biological functions, including anti-inflammatory and antioxidant. Today, the use of polydatin, which is reported to have cell-protective effects by researchers, as an antioxidant agent against oxidant substances has been a frequently studied subject. In this study, it was aimed to investigate the protective effect of polydatin against sodium fluoride-induced oxidative stress in rats. For this purpose, 600 ppm NaF was given ad libitum to the rats with drinking water. Polydatin was given to the treatment groups at the doses of 25; 50; 100 mg/kg by gastric gavage. In the 14 days study, SOD, MDA, CAT, GSH values from blood, heart, liver, kidney, brain, testis and lung obtained from animals were analyzed. Histopathological examinations of the tissue samples were performed. AST, ALT and ALP levels were measured in serum. In addition, the expression levels of IFN-γ, TNF-α and NFkB inflammatory genes were examined. Sodium fluoride stimulated lipid peroxidation and decreased CAT, SOD and GSH levels in all tissues of rats. It also increased MDA, AST, ALP, and ALT levels. Polydatin application brought SOD, CAT and GSH values closer to control and decreased MDA levels. At the same time, polydatin application brought serum AST, ALT and ALP values closer to the control group. As a result of the study, it was determined that polydatin, a natural antioxidant, had a protective effect on the oxidative stress created by sodium fluoride application.
- Published
- 2022
17. Tartrazin ile oksidatif stres oluşturulan ratlarda karvakrolün etkisinin belirlenmesi
- Author
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Özüdoğru, Murat, Acaröz, Ulaş, and Özüdoğru, Murat
- Subjects
Oksidatif Stres ,Lipid Peroksidasyon ,Rat ,Tartrazin ,Karvakrol - Abstract
Tartrazin (E 102), sarı renkte hammaddesi kömür katranı olan sentetik bir azo boyasıdır. En ucuz sentetik boyalardan biridir ve sıklıkla pastacılık sektöründe kek ve şekerleme yapımında, alkolsüz içecekler, hazır pudingler, hazır çorbalar, sakız, çerez, reçel, jelatin, jöle, hardal, ketçap ve pek çok başka gıda maddesinde kullanılmaktadır. Kekiğin ana bileşeni olan karvakrol antioksidan, anti-bakteriyel ve anti-inflamatuar özelliklere sahip bir bileşik olup ABD Gıda ve İlaç Dairesi tarafından insan tüketimine uygun olarak tanımlanmış, fenolik bir bileşik olarak Avrupa Gıda Konseyi tarafından da kullanımına izin verilmiştir. Günümüzde antioksidan ajan olarak karvakrolün, potansiyel kullanımları araştırmacıların yoğun ilgisini çekmiş ve yapılan çalışmalarla karvakrolün antioksidan ve hücre koruyucu etkilerinin olduğu bildirilmiştir. Planlamış olduğumuz bu araştırma ile ratlarda tartrazinin meydana getirdiği oksidatif hasara karşı karvakrolün antioksidan etkisinin incelenmesi amaçlandı. Çalışmamız doğrultusunda, tartrazin (500 mg/kg) ve karvakrol (12,5; 25; 50 mg/kg) miktarlarda 21 gün boyunca ratlara gastrik gavaj ile verildi. Bu süre sonunda hayvanlardan elde edilen kan, karaciğer, beyin, böbrek, akciğer, testis ve kalp doku örneklerinden süperoksit dismutaz (SOD), redükte glutatyon (GSH), malondialdehit (MDA) ve katalaz (CAT) enzimlerinin seviyeleri incelendi. Ayrıca serumda alanin aminotransferaz (ALT), aspartat aminotransferaz (AST) ve alkalen fosfataz (ALP) düzeyleri ölçüldü. Ratlardan alınan karaciğer ve böbrek doku örneklerinde doku hasarı ile ilişkili olan IFN- γ, TNF-α ve NFkB yangısal genlerinin moleküler analizi ve histopatolojik incelemeleri gerçekleştirildi. Tartrazin, ratların tüm dokularında lipit peroksidasyonu uyararak SOD, CAT ve GSH düzeylerini azalttı, MDA aktivitesini yükseltti, serum ALT, ALP ve AST aktivitelerini de yükseltti. Karvakrol uygulaması ile dokulardaki SOD, CAT ve GSH düzeyleri kontrole yaklaşırken, MDA aktivitesi ise azaldı. Diğer taraftan karvakrol, serum AST, ALT ve ALP aktivitelerini kontrol grubuna yaklaştırdı. Elde edilen bulgular, tartrazin uygulamasının plazma ve hücrelerde oksidatif strese neden olduğunu ve doğal bir antioksidan madde olan karvakrolün oral tartrazin toksisitesi üzerinde koruma etkisinin olduğunu ve tartrazin’in sebep olduğu oksidatif strese bağlı olumsuz etkileri düzelttiğini göstermektedir. Çalışmada elde edilen verilerin istatistiksel değerlendirmesi yapılarak, gruplar arası farklılıkların önemi ile parametreler arası ilişkiler saptanmış ve karvakrolün, tartrazin ile oksidatif hasara karşı olası koruyucu etkinliği belirlenmiştir. Bu sonuçlara göre karvakrolün oksidatif strese bağlı doku ve organ hasarlarının önlenmesinde olumlu etkilere sahip olduğu ortaya konmuştur. Tartrazine (E 102) is a yellow synthetic azo dye whose raw material is coal tar. It is one of the cheapest synthetic dyes and is often used in the pastry industry for making cakes and confectionery, soft drinks, instant puddings, instant soups, chewing gum, snacks, jams, gelatin, jelly, mustard, ketchup and many other foodstuffs. Carvacrol, the main component of thyme, is a compound with antioxidant, anti-bacterial and anti-inflammatory properties. Today, the potential uses of carvacrol as an antioxidant agent have attracted the attention of researchers and studies have reported that carvacrol has antioxidant and cell protective effects. The aim of this study, which we planned, was to examine the antioxidant effect of carvacrol against oxidative damage caused by tartrazine in rats. In line with our study, tartrazine (500 mg/kg) and carvacrol (12.5; 25; 50 mg/kg) were administered to rats by gastric gavage for 21 days. At the end of this period, the levels of superoxide dismutase (SOD), reduced glutathione (GSH), malondialdehyde (MDA) and catalase (CAT) enzymes were examined from blood, liver, brain, kidney, lung, testes and heart tissue samples obtained from animals. In addition, serum alanine aminotransferase (ALT), aspartate aminotransferase (AST) and alkaline phosphatase (ALP) levels were measured. Molecular analysis and histopathological examinations of IFN-γ, TNF-α and NFkB inflammatory genes associated with tissue damage were performed in liver and kidney tissue samples taken from rats. Tartrazine decreased SOD, CAT and GSH levels by stimulating lipid peroxidation in all tissues of rats, increased MDA activity, and increased serum ALT, ALP and AST activities. With the application of carvacrol, SOD, CAT and GSH levels in the tissues approached the control, while MDA activity decreased. On the other hand, carvacrol brought the serum AST, ALT and ALP activities closer to the control group. The findings show that tartrazine administration causes oxidative stress in plasma and cells, and carvacrol, a natural antioxidant, has a protective effect on oral tartrazine toxicity and corrects the negative effects of tartrazine-induced oxidative stress. By statistical evaluation of the data obtained in the study, the importance of the differences between the groups and the relationships between the parameters were determined and the possible protective effectiveness of carvacrol against oxidative damage with tartrazine was determined. According to these results, it has been revealed that carvacrol has positive effects in the prevention of tissue and organ damage due to oxidative stress. Bu tez çalışması; Afyon Kocatepe Üniversitesi Bilimsel Proje Araştırmaları Koordinasyon Birimi (BAPK) Tarafından Desteklenmiştir. Proje No: “20.SAĞ.BİL.10”
- Published
- 2022
18. Antioxidant capacity, anti-acetylcholinesterase activity and inhibitory effect on lipid peroxidation in mice brain homogenate of Achillea millefolium.
- Author
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Barut, Elif Nur, Barut, Burak, Engin, Seçkin, Yıldırım, Sercan, Yaşar, Ahmet, Türkiş, Sevda, Özel, Arzu, and Sezen, Feride Sena
- Subjects
- *
YARROW , *ACETYLCHOLINESTERASE inhibitors , *ANTIOXIDANTS , *LIPID peroxidation (Biology) , *LABORATORY mice , *THERAPEUTICS - Published
- 2017
- Full Text
- View/download PDF
19. Synthesis and Antioxidant Properties of New Oxazole-5(4H)-one Derivatives.
- Author
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KUŞ, Canan, UĞURLU, Ezgi, ÖZDAMAR, Elçin D., and CAN-EKE, Benay
- Subjects
- *
ANTIOXIDANTS , *OXAZOLES synthesis , *HIPPURIC acid , *BENZOIC acid , *BENZALDEHYDE - Abstract
Objectives: To synthesize and characterize 4-(substituted benzylidene)-2-(substituted phenyl)oxazol-5(4H)-one derivatives (E1-E10), and evaluate them for antioxidant activity. Materials and Methods: Required oxazole-5(4H)-one derivatives were synthesized in two steps to obtain novel hippuric acid derivatives (7-13); glycine and acylated appropriate benzoic acid derivatives were used and then, final compounds were obtained with condensation of 7-13 with appropriate benzaldehydes (E1-E10). These products were purified by column chromatography using ethyl acetate/n-hexane as eluent. All the compounds were unequivocally characterized using the combination of 1H and 13C-nuclear magnetic resonance, mass spectrometry (ESI-MS), and elemental analysis. The inhibition of lipid peroxidation and its effects on hepatic cytochrome P450-dependent ethoxyresorufin-O-deethylase (EROD) enzyme were determined in rats in vitro. Results: The most active analogue on the microsomal EROD activity was E3 which inhibited the microsomal EROD activity (89%) and was similarly better than that of the specific inhibitor caffeine (85%) at 10-3 M concentration. Conclusion: The findings of this study indicate that the synthesized compounds, such as E3, display significant antioxidant activity. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
20. Radyasyona Maruz Bırakılan Ratlarda Lipid Peroksidasyonu ve Bazı Antioksidan Parametreler Üzerine Propolisin Etkisi.
- Author
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ŞİMŞEK, Halil, KAYA, Enes, and ÖZÇELİK, Mehtap
- Abstract
The aim of this study was to determine the changes on radiation exposed rats and the blood in the levels of MDA, GSH, activities SOD, GSH-Px and CAT with the application of propolis. This research was carried out on 3 groups and 30 rats were used. Group 1 was the control group and no application was made. Group 2 was given 100 mg/kg body weight of % 0.9 saline brine intraperitoneal for three days and at the end of the application radiation (6 Gy dose of gamma rays) irradiation was applied. Group 3 was given 100 mg/kg propolis intraperitoneal for three days and at the end of the application the radiation with the same dose was applied. In blood samples taken, plasma MDA, erythrocyte GSH levels, SOD, GSH-Px and CAT activities were measured using spectrophotometric method. After statistical analyses, when compared to the control group, in radiation group, plasma MDA (P<0.001) and erythrocyte GSH (P<0.001) levels, GSH-Px (P<0.001), CAT (P<0.001) and SOD (P<0.001) activites were found to be significant. When compared to radiation group, in propolis + radiation group; while the levels of plasma MDA (P<0.001) were found to be signifacant, levels of GSH (P>0.05) in erythrocyte and activities of SOD, GSH-Px and CAT were not found to be significant. In this study, it was observed that the dose of propolis used did not act to increase the decrease in enzyme activity caused by radiation. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
21. Farklı Gövde Yüksekliğine Sahip Karaerik (Vitis vinifera L.) Üzüm Çeşidinin Kış Gözlerinde Soğuk Zararı Ve Lipid Peroksidasyon Düzeyinin Belirlenmesi.
- Author
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KALKAN, Nalan Nazan, KAYA, Özkan, KARADOĞAN, Birol, and KÖSE, Cafer
- Abstract
This experiment was carried out to determine the cold injury of winter buds according to different trunk heights in Karaerik cv. grape cultivar grown in Erzincan province during the winter colds that occurred in 2012/13. In addition, the level of lipid peroxidation activity was examined in winter buds exposed to low temperatures. For this purpose, 1 year old shoots were taken in the spring before pruning and of the first 4 buds of one-year old shoot were examined with a binocular microscope after opening with a razor blade and low temperature damage was detected in the dormant buds. Lipid peroxidation level in winter buds was determined by malonindialdehyde (MDA) analysis. Falling winter temperatures up to -19.2oC the damage was caused 75cm, 100cm and 125cm trunk height shoots in winter buds average 24.10%, 30.2% and 22.9% respectively in this period. However, no significant difference was found between trunk heights according to the results of injury rate and lipid peroxidation activity level in winter buds. Along with that, 125cm trunk height the winter buds have been slightly more tolerant to low winter temperatures compared to other trunk heights. We are of the conviction may be a more accurate approach of investigation of the effects of trunk heights on yield and quality criteria for recommend which trunk height is more suitable for local vineyard in future work. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
22. Subakut metaflumizon uygulamasının lipid peroksidasyon, aktioksidan aktivite ve dokular üzerindeki etkilerinin erkek ratlarda araştırılması
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Demirkapı, Ezgi Nur and Demirel, Hasan Hüseyin
- Subjects
Oksidatif stres ,Antioksidan aktivite ,İnsektisit ,Metaflumizon ,Lipid peroksidasyon ,Akut toksisite - Abstract
Yapılan tez çalışmasında sodyum kanalı bloke edici insektisit çeşidi olan Metaflumizon (MTF)’un erkek ratlarda lipid peroksidasyon, antioksidan aktivite düzeyleri, karaciğer, böbrek ve beyin dokuları üzerindeki etkilerinin araştırılması amaçlanmıştır. Uygulama için Afyon Kocatepe Üniversitesi Etik Kurul’undan 49533702/189 sayılı onay alınarak başlandı. Çalışmada 300-350 g 10-12 haftalık toplam 32 Sprague Dawley erkek rat, her kafesde 8’erli hayvan olacak şekilde rastgele örnekleme yöntemiyle 4 gruba ayrıldı. Kontrol grubuna fizyolojik su, ikinci gruba 50 mg/kg MTF, üçüncü gruba 100 mg/kg ve son gruba 200 mg/kg MTF gastrik gavaj yoluyla oral olarak 28 gün boyunca uygulandı. Çalışma sonunda elde edilen veriler değerlendirildiğinde kontrol grubuna göre MTF‘un artan dozlarda uygulamasının eritrosit örneklerinde, karaciğer, böbrek ve beyin dokularında malondialdehit (MDA), süperoksit dismutaz (SOD) ve katalaz (CAT) seviyelerinin anlamlı derecede (p˂0,05) arttığı, glutatyon (GSH) seviyelerinin ise azaldığı belirlendi. Ek olarak artan dozlarda MTF uygulaması ile plazma aspartat aminotransferaz (AST), alanin aminotransferaz (ALT), alkalen fosfataz (ALP) , üre, kreatinin, total protein ve glukoz seviyelerinin anlamlı derecede (p˂0,05) arttığı rapor edildi. Bunlara ek olarak MTF50, MTF100 ve MTF200 gruplarında karaciğer, böbrek, testis ve beyin dokularında hasara ilişkin histopatolojik değişiklikler ile hücre ölümünü gösteren apoptotik bulguların oluştuğu belirlenmiştir. Tez çalışması sonucunda elde edilen bulgulara göre MTF’un ratlarda oksidatif stresi indüklediği ve karaciğer, böbrek ve beyin dokuları üzerinde histopatolojik hasarlar meydana getirdiği tespit edilmiştir. In the thesis study, it was aimed to investigate the effects of Metaflumizon (MTF), a sodium channel blocking insecticide, on lipid peroxidation, antioxidant activity levels, liver, kidney and brain tissues in male rats. The application was started with the approval numbered 49533702/189 from the Afyon Kocatepe University Ethics Committee. In the study, a total of 32 Sprague Dawley male rats, 300-350 g, 10-12 weeks old, were randomly divided into 4 groups with 8 animals in each cage. Physiological water was administered to the control group, 50 mg/kg MTF to the second group, 100 mg/kg to the third group, and 200 mg/kg MTF to the last group by gastric gavage for 28 days orally. When the data obtained at the end of the study were evaluated, compared to the control group, the application of MTF in increasing doses increased the levels of malondialdehyde (MDA), superoxide dismutase (SOD) and catalase (CAT) significantly (p˂0.05) in erythrocyte samples, liver, kidney and brain tissues. It was determined that glutathione (GSH) levels decreased. In addition, it was reported that plasma aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), urea, creatinine, total protein and glucose levels increased significantly (p˂0.05) with increasing doses of MTF. In addition, it was determined that histopathological changes related to damage to liver, kidney, testis and brain tissues and apoptotic findings indicating cell death occurred in MTF50, MTF100 and MTF200 groups. According to the findings obtained as a result of the thesis study, it was determined that MTF induced oxidative stress in rats and caused histopathological damage on liver, kidney and brain tissues. Bu tez çalışması; Afyon Kocatepe Üniversitesi Bilimsel Proje Araştırmaları Koordinasyon Birimi (BAPK) Tarafından Desteklenmiştir. Proje No: “20. SAĞ. BİL.23”
- Published
- 2022
23. Bazı kavun Cucumis sp. genotiplerinin tuz stresine tepkileri
- Author
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Şebnem Kuşvuran, Şebnem Ellialtıoğlu, Fikret Yaşar, and Kazım Abak
- Subjects
melon ,salinity ,tolerance ,ion ,lipid pedoxidation ,kavun ,tuzluluk ,tolerans ,iyon ,lipid peroksidasyon ,Agriculture (General) ,S1-972 - Abstract
Araştırmada, kavunda tuza tolerans bakımından genotipler düzeyinde farklılığın bulunup bulunmadığını ortaya koymak; tuza toleransın belirlenmesinde bitki biyomas değerlerinin ve yapraklarda iyon biriktirme derecesinin kullanılma olanağını iincelemek amaçlanmıştır. Ayrıca tuz stresinde yapraklarda MDA miktarındaki artış incelenmiştir. 36 adet farklı genotip, tuza tolerans ve duyarlılık özelliği bakımından farklı parametrelere göre sıralanmış, özellikler arasındaki korelasyon katsayıları belirlenmiştir. Kavunda tuz zararının Na+ ve Cl- iyonlarının toksik etkisinden kaynaklandığı, bu iyonları bünyede az bulunduran genotiplerde tuza toleransın daha yüksek olduğu gözlenmiştir. Denemede kullanılan genotipler arasında Midyat, Besni ve Şemame kavun genotipleri tuza tolerant olarak belirlenirken; Ananas ve Yuva çeşitlerinin tuza en duyarlı kavun çeşitleri olduğu ortaya konmuştur
- Published
- 2007
24. Ratlarda Pentaklorofenol Zehirlenmesinde Nar Çekirdeği Yağının Lipid Peroksidasyonu ve Biyokimyasal Parametrelere Etkileri.
- Author
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Sarıca, Zeynep Soyer and Liman, Bilal Cem
- Abstract
In the study, Sprague-Dawley male rats were used and four groups were formed. The first group was held as the control group. The second group was given 0.15 ml/kg pomegranate seed oil (PSO), the third group was given 40mg/kg pentachlorphenol (PCP) and, the forth group was given 40mg/kg PCP+0.15 ml/kg PSO during 28 days as specified into stomach by gavages. At the end of the experiment, erythrocyte haemoglobin, catalase, glutathione peroxidase, nitric oxide, blood serum 8-hidroksi-2-deoksi guanosin (8-OH-dG) and biochemical parameters were analysed. As a result, 40mg/kg PCP applied by gavage, caused liver damage, lipid peroxidation and decreased the anti-oxidant enzyme activity and 0.15ml/kg PSD applied for 28 days, had no negative effect on protein, oil and carbonhidrate metabolism, had no toxic effect on liver and had no effect on lipid peroxidation. Overall, it's determined that pomegranate seed oil prevents the negative effects of the pentachlorophenol. [ABSTRACT FROM AUTHOR]
- Published
- 2016
25. Scutellaria orientalis subsp. virens ve Scutellaria salviifolia üzerinde Anatomik, Mikromorfolojik, Karyolojik ve Biyokimyasal bir çalışma
- Author
-
ACAR, Mikail, TAŞAR, Neslihan, and BEKER AKBULUT, Gülçin
- Subjects
Trikom ,Lipid peroksidasyon ,Toplam karbonhidrat ,Mikromorfoloji ,Scutellaria ,Trichome ,Lipid peroxidation ,Total carbohydrate ,Micromorphology ,Biology ,Biyoloji - Abstract
In this study, the anatomical and micromorphological structure, karyological characteristics and biochemical content of Scutellaria orientalis subsp. virens and endemic Scutellaria salviifolia, whose distributions areas overlap, were compared. Some anatomical and micromorphological differences were observed on the taxa; scleranchymatic pericycle layer on the stem, stomata density, distribution of trichomes, as well as the main vascular bundle and general shape of the petiole. The chromosome numbers of both taxa were determined as 2n = 22. However, there was a difference between chromosome length range and total chromosome length. The chromosome numbers and chromosome morphologies of these species have been defined for the first time in this paper. Differences in biochemical content were observed between species. Chlorophyll a (Chl a), total chlorophyll (Total Chl), total carbohydrate and malondialdehyde (MDA) contents were determined higher in leaf and stem samples of S. orientalis subsp. virens than S. salviifolia. There was no significant difference between the two taxa in terms of chlorophyll b (Chl b) content. Carotenoid (Car) content was detected higher in leaves samples of S. orientalis subsp. virens, but no significant difference was found between stems samples. Also, the effect of taxa on biochemical contents in relation to the habitat they live in is given in this study., Bu çalışmada, yayılış alanları örtüşen Scutellaria orientalis subsp. virens ve endemik Scutellaria salviifolia'nın anatomik ve mikromorfolojik yapısı, karyolojik özellikleri ve biyokimyasal içeriği karşılaştırılmıştır. Taksonlarda bazı anatomik ve mikromorfolojik farklılıklar gözlenmiştir. Bunlar; gövdede sklerankimatik periskl tabakası, stoma yoğunluğu, trikomların dağılımı, petiyolün genel şekli ve ayrıca ana iletim demetinde birtakım farklılıklar şeklindedir. Her iki taksonun kromozom sayıları 2n=22 olarak belirlenmesine rağmen kromozom uzunluk aralığı ile toplam kromozom uzunluğu arasında fark görülmüştür. Bu türlerin kromozom sayıları ve kromozom morfolojileri ilk kez bu çalışmada tanımlanmıştır. Türler arasında biyokimyasal içerik farklılıkları da gözlenmiştir. S. orientalis subsp. virens'in yaprak ve gövde örneklerinde klorofil a (Chl a), toplam klorofil (Toplam Chl), toplam karbonhidrat ve malondialdehit (MDA) içeriğinin S. salviifolia'ya göre daha yüksek olduğu belirlenmiştir. Klorofil b (Chl b) içeriği açısından iki takson arasında önemli bir fark tespit edilmemiştir. S. orientalis subsp. virens'in yaprak örneklerinde karotenoid (Car) içeriği daha yüksek saptanmış, ancak gövde örnekleri arasında önemli bir fark bulunmamıştır. Çalışmada taksonların yaşadıkları habitata göre biyokimyasal içerikleri üzerindeki etkisi de verilmiştir.
- Published
- 2021
26. Effects of Low Dose Methotrexate in Cerebral Ischemia Reperfusion Injury in Rat.
- Author
-
BAKAR, Bulent, KOSE, Emine Arzu, SARI, Elif, SARKARATI, Bahram, and ATASOY, Pinar
- Subjects
- *
METHOTREXATE , *CEREBRAL ischemia , *PHARMACODYNAMICS , *OXIDATIVE stress , *BLOOD-brain barrier disorders , *INFLAMMATION , *CONTROL groups , *ANIMAL models in research - Abstract
Background: During cerebral ischemia reperfusion injury, oxidative stress leads to excitotoxicity, blood brain barrier dysfunction and inflammation. This study was designed to evaluate possible protective effects of low dose methotrexate on cerebral transient ischemia reperfusion injury in rat. Methods: Except CONTROL group, temporary aneurysm clips were performed to both common carotid arteries of rats for duration of 30 minutes. Four hours later, except CONTROL and SHAM groups, methotrexate (1.25 mg/kg/day) was administered intraperitoneally. Seventy two hours later, animals of CONTROL, MTX-A and SHAM-A group; and ten days later animals of MTX-C and SHAM-C group were sacrificed and hippocampal pyknotic neuronal cell count results and tissue lipid peroxidation (LPO) values were analyzed statistically. Results: Pyknotic cell count values of CONTROL group were lower than SHAM-A, SHAMC, MTX-A and MTX-C group values. Cell count values of SHAM-A and MTX-A group were higher than SHAM-C and MTX-C values, respectively. LPO values of CONTROL group were lower than SHAM-A and MTX-A values, but not different from MTX-C and SHAM-C values. LPO values of MTX-A group higher than MTX-C group values. Conclusion: Cell count values and LPO values demonstrated that low dose methotrexate could not prevent neuronal cells from destructive effects of transient ischemia reperfusion injury in rat. [ABSTRACT FROM AUTHOR]
- Published
- 2015
27. The Effects of Grape Seed on Lipid Peroxidation and Haematological Parameters in Broiler Administered Ionophore Antibiotics.
- Author
-
KARABACAK, Mürsel and LİMAN, Bilal Cem
- Subjects
- *
BROILER chickens , *GRAPES , *LIPID peroxidation (Biology) , *HEMATOLOGY , *IONOPHORES , *ANTIBIOTICS - Abstract
The present study was aimed to determine at the determination of the effects of salinomycin, lasalocid and maduramacin, which are ionophore antibiotics, on lipid peroxidation and certain blood parameters in broilers and to investigate the protective effect of grape seed against the adverse effects of these antibiotics. Ninety six broiler chickens constituted the material of the study. Eight trial groups were established, each group comprising of 12 chicks. The first group was maintained for control purposes and was provided with feed free from any drug or feed additive. The second group received grape seed (0.5%), whilst the 3rd, 4th and 5th groups were given salinomycin (60 ppm), lasalocid (100 ppm) and maduramycin (5 ppm), respectively. The sixth group was given a combination of salinomycin (60 ppm) and grape seed (0.5%), whilst the seventh group received lasalocid (100 ppm) combined with grape seed (0.5%). Finally, the eighth group received maduramycin (5 ppm) and grape seed (0.5%). The feed treatments were continued for a period of 6 weeks. On days 21 and 42 of the trial, blood samples were collected. Levels of plasma malondialdehyde (MDA) and nitric oxide (NO), and the activities of erythrocyte catalase (CAT) and glutathione peroxidase (GSH-Px), and haemoglobin and haematocrit of whole blood were evaluated. The results obtained demonstrated that when incorporated into broiler chicken feed at a level of 0.5% for a period of 42 days, grape seed did not cause any adverse effects on lipid peroxidation and haematological parameters. On the other hand, the administration of salinomycin, lasalocid and maduramycin at treatment doses in feed caused adverse alterations in lipid peroxidation and haematological parameters, which were more pronounced on day 42. Furthermore, it was ascertained that grape seed alleviated the adverse effects caused by salinomycin, lasalocid and maduramycin on lipid peroxidation and haematological parameters (p< 0.05). [ABSTRACT FROM AUTHOR]
- Published
- 2015
28. Streptozotosin ile Tip-1 diyabet oluşturulan sıçanlarda acı badem yağının serum ve eritrositlerdeki bazı biyokimyasal parametrelere etkisi.
- Author
-
Demir, Ersin and Yılmaz, Ökkeş
- Subjects
- *
STREPTOZOTOCIN , *TREATMENT of diabetes , *TYPE 1 diabetes , *ANIMAL models in research , *MALONDIALDEHYDE , *PHYSIOLOGICAL effects of glutathione , *CONTROL groups , *THERAPEUTICS - Abstract
The present study was designed to evaluate the efficacy of bitter almond oil on some biochemical parameters in serum and erythrocytes of streptozotocin-induced type-1diabetic rats. The rats were divided into three groups: Control (C); Diabetes (STZ); Diabetes+Bitter almond oil (STZ+BAO). Experimental diabetes induced in rats with a single intraperitoneal streptozotocin injection (65 mg/kg). 1 ml/kg dose of bitter almond oil was intraperitoneally injected to bitter almond oil group rats (STZ+BAO) twice in a week and additionally 2 g/500 ml dose of bitter almond seed powder was added to the drinking water of these rats. According to control group, postprandial blood glucose level was significantly increased (p<0.001) in the STZ group; but its level was significantly decreased (p<0.001) in the STZ+BAO group when compared to the STZ group. Malondialdehyde (MDA) levels of serum and erythrocytes increased significantly (p<0.001) in STZ group and glutathione (GSH) level erythrocytes decreased significantly (p<0.001) when compared to control group. It was detected that, MDA levels of serum and erythrocytes significantly decreased (p<0.001) in the STZ+BAO group and GSH levels were significantly (p<0.001) inreased compared to STZ group. In the serum, the palmitic and linoleic acid levels; in the erythrocytes, the palmitic, palmitoleic, stearic, arachidonic and docosahexaenoic acid levels were closed to the control group values in the STZ+BAO group. In also, in the serum, α-tocopherol acetate and β-sitosterol levels; in the erythrocytes, α-tocopherol levels were closed to the control group values in the same group. The α-tocopherol level was increased in the serum of STZ+BAO group when comparison to the STZ group. In conclusion, it was determined that the treatment of bitter almond oil positively affected lipid peroxidation, glutathione, fatty acids and α-tocopherol levels in the serum and erythrocytes of diabetic rats. According to our study results, bitter almond oil consumption could be a good diet strategy in the treatment of diabetes, but these results should be supported by detail researchs. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
29. Streptozotosinin Neden Olduğu Tip-1 Diyabette Çam Yağının Karaciğer ve Böbrek Dokusundaki Bazı Biyokimyasal Parametrelere Etkisi.
- Author
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Demir, Ersin and Yılmaz, Ökkeş
- Subjects
STREPTOZOTOCIN ,DIABETES ,DRUG side effects ,LIVER physiology ,KIDNEY physiology ,HYPERGLYCEMIA ,LIPID peroxidation (Biology) ,LABORATORY rats - Abstract
Copyright of Karaelmas Science & Engineering Journal / Karaelmas Fen ve Mühendislik Dergisi is the property of Karaelmas Science & Engineering Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2014
- Full Text
- View/download PDF
30. Nil Tilapyası, Oreochromis niloticus (Linnaeus, 1758) Karaciğer Dokusunda Kurşunun Neden Olduğu Oksidatif Strese Karşı Humik Maddelerin Koruyucu Etkisi
- Author
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Serap Yalin, Metin Yildirim, Zülfiye Su, Ferbal Özkan Yilmaz, and Arzu Özlüer-Hunt
- Subjects
Antioxidant ,medicine.medical_treatment ,Lipid peroksidasyon ,Commercial fish feed ,lcsh:Agriculture ,Superoxide dismutase ,Lipid peroxidation ,chemistry.chemical_compound ,medicine ,Food science ,humik madde ,lcsh:Agriculture (General) ,biology ,Chemistry ,Oreochromis niloticus ,lcsh:S ,General Medicine ,antioksidan sistem ,Malondialdehyde ,biology.organism_classification ,lcsh:S1-972 ,kurşun ,Enzyme assay ,Oreochromis ,Catalase ,biology.protein - Abstract
Bu araştırmada, subletal kurşun (Pb) derişiminin Nil tilapyası (Oreochromis niloticus)‘nda antioksidan enzim sistemi üzerine etkilerine karşı, yeme katılan humik maddenin koruyucu etkisi incelenmiştir. Bu amaçla 1,5 mg/L kurşun nitrat Pb(NO3)2 ortam derişimi etkisindeki balıklar, %0,2 oranında humik madde katkısı bulunan yem ile beslenmişlerdir. Kontrol grubu, humik madde (HM), Pb, ve Pb+HM grublarını içeren bu çalışmada 4. ve 10. günlerde karaciğer doku örnekleri alınmıştır. Karaciğer dokusu katalaz (CAT) ve süperoksit dismutaz (SOD) enzim aktiviteleri ve lipid peroksidasyon ürünü olan malondealdehit (MDA) seviyesi, kontrol grubu ile karşılaştırıldığında, subletal kurşun derişimi uygulanan grupta 4. ve 10. günlerde önemli oranda arttığı belirlenmiştir. Pb grubu ile HM+Pb grubu karşılaştırıldığında, CAT ve SOD aktivitesinde önemli bir değişime neden olmadığı, ancak humik madde uygulamasının karaciğer dokusu lipid peroksidasyonu üzerine Pb toksisitesinin etkisini azalttığı belirlenmiştir. Deneme sonuçlarına göre, yeme ilave edilen %0,2 humik madde, 1,5 mg/L Pb ortam derişiminin, O. niloticus karaciğer dokusu lipid peroksidasyon üzerindeki toksisitesini belirli düzeyde azalttığı belirlenmiştir.
- Published
- 2018
- Full Text
- View/download PDF
31. Spontan hipertansif sıçanların mide mukozasında lipid peroksidasyon ve apopitozis düzeyleri.
- Author
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Ercan, Sevim, Koçer, Günnur, Çelik-Ozenci, Çiler, and Gündüz, Filiz
- Subjects
- *
GASTRITIS , *LIPID peroxidation (Biology) , *APOPTOSIS , *TISSUES , *HYPERTENSION , *LABORATORY rats , *BLOOD flow - Abstract
Aim: The spontaneously hypertensive rat is a widely used animal model for essential hypertension . Despite the recognized gastric complications of hypertension, such as bleeding from gastritis, gastric mucosal blood flow and motility and vascular ectasias until now no investigations have been conducted on gastric mucosal apoptosis in hypertensive animals. In this study, we investigated the lipid peroxidation and apoptotic changes in the stomachs on spontaneously hypertensive rats. Methods: Spontaneously hypertensive (n: 10) and normotensive Wistar Kyoto rats (n: 10) were used. Thiobarbituric acid reactive substances were determined as an indicator of lipid peroxidation and terminal deoxynucleotdyl transferase-mediated deoxyuridine triphosphate nick-end labelling technique was used to detect apoptosis in gastric tissue. Results: While the number of apoptotic cells were increased significantly in spontaneously hypertensive rats, thiobarbituric acid reactive substances were not changed when compared Wistar Kyoto rats. In conclusion, data presented in the current study demonstrate the significant increase in gastric mucosal apoptosis in spontaneously hypertensive rats for the first time but underlying mechanisms of apoptosis are not clarified. [ABSTRACT FROM AUTHOR]
- Published
- 2013
32. Reactive Aldehydes and Neurodegenerative Disorders.
- Author
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Matveychuk, Dmitriy, Dursun, Serdar M., Wood, Paul L., and Baker, Glen B.
- Subjects
- *
NEURODEGENERATION , *ALDEHYDES , *ALZHEIMER'S disease , *PARKINSON'S disease , *MULTIPLE sclerosis , *AMYOTROPHIC lateral sclerosis , *NEUROTOXICOLOGY - Abstract
Interest in neurodegenerative disorders has increased markedly in the last several decades; however, the exact pathological mechanisms of disorders such as Alzheimer's disease (AD), Parkinson's disease (PD), multiple sclerosis (MS) and amyotrophic lateral sclerosis (ALS) remain to be elucidated. There is increasing evidence for the role of endogenous reactive aldehydes (including malondialdehyde [MDA], 4-hydroxynonenal [HNE], acrolein, 3-aminopropanal [3-AP], formaldehyde and methylglyoxal) as common mediators of neurodegeneration. These reactive aldehydes are produced by a wide variety of sources and have been shown to possess a multitude of neurotoxic and gliotoxic properties in vitro and in vivo. Evidence for accumulation of reactive aldehydes in and possible linkage to pathological processes underlying the above neurodegenerative disorders is discussed. [ABSTRACT FROM AUTHOR]
- Published
- 2011
- Full Text
- View/download PDF
33. The Effect of Glurenorm (Gliquidone) on Aorta in STZ Induced Diabetic Rats.
- Author
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Akbay, Tugba Tunali, Yarat, Aysen, Sacan, Ozlem, and Yanardag, Refiye
- Subjects
- *
PERIPHERAL vascular diseases , *DIABETES , *ATHEROSCLEROSIS , *CARDIOVASCULAR diseases , *GLUTATHIONE transferase , *LABORATORY rats - Abstract
Vascular diseases are one of the common complications of diabetes mellitus. In diabetes, increased free radical formation raises the incidence of atherosclerosis and cardiovascular diseases. Regardless of the type of diabetes, the objective of the therapy is to achieve normoglycemia and to prevent or delay the complications. Glurenorm (gliquidone) is one of the members of sulphonylurea group oral antidiabetics. Sulphonylurea oral antidiabetics act via stimulating insulin release from β cells of the pancreas. Therefore, the aim of the study was to investigate the effect of glurenorm (gliquidone, 10 mg/kg) on the aorta of streptozotocin-induced diabetic rats in terms of nonenzymatic glycation, lipid peroxidation and reduced glutathione. Both diabetic and control group rats have taken the drug daily, until the end of the experiment, at day 42. Blood samples and aorta was taken from each rat at day 42. Blood glucose was measured by o-toluidine method. Glurenorm decreased the blood glucose and increased the body weights of diabetic rats. However, glurenorm did not decrease non-enzymatic glycation of aorta proteins in diabetic rats, but it decreased lipid peroxidation of aorta. Although the aorta lipid peroxidation level was decreased in glurenorm given diabetic rats, glutathione level did not increase. This may show that oxidative damage continues during the glurenorm treatment. Glurenorm also did not change the electrophoretic pattern of aorta proteins. The results indicate the usage of glurenorm is effective on decreasing of blood glucose but not on decreasing nonenzymatic glycation or oxidative damage in aorta samples of diabetic rats. [ABSTRACT FROM AUTHOR]
- Published
- 2011
34. N-Asetilsistein'in Kroner Arter Baypas Uygulanan Hastalarda İskemi Reperfüzyona Etkisi.
- Author
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Çınar, Demet, Uzun, Şennur, Kılınç, Kamer, Kanbak, Meral, and Çelebioğlu, Bilge
- Subjects
- *
CORONARY artery bypass , *CARDIOMYOPATHIES , *OXIDATION-reduction reaction , *GLUTATHIONE , *ANTIOXIDANTS - Abstract
Aim: Available ample evidence reveals that the cause of myocardial damage after coronary artery bypass grafting (CABG) is the uncontrolled release of free oxygen radicals during the first minutes of reperfusion and the use of appropriate agents improve contractile functions. One of the most popular methods inhibiting the oxidative damage involves the usage of glutathione regulating agents. N-acetylcysteine (NAC) is the mostly investigated agent among the glutathione compounds. In this study, the effects of NAC on the ischemic reperfusion damage after CABG, on total antioxidant capacity (TAC), lipid peroxidation, glutathione peroxides (GPx), myeloperoxides (MPO) and cardiac parameters were investigated. Material and Methods: A randomised, controlled clinical study was performed. After induction of anaesthesia, 50 mg kg-1 iv bolus of NAC followed by its infusion (diluted in 500 cc 0.9 % NaCl) at a rate of 50 mg kg-1/12 hr was instituted to Group N (N-acetylcysteine). An infusion of 0.9 % NaCl (500 cc/12 hr) was initiated in Group C (control). On predetermined time points, blood samples for TAC, lipid peroxidation, GPx, MPO were collected and cardiac output (CO), cardiac index (CI), mean pulmonary arterial pressure (MPAP) and mean pulmonary capillary wedge pressure (MPCWP) were measured. Results: While CO, CI were increased, MPCWP was decreased compared to baseline in Group N (p<0.05). Compared to baseline TAC, GPx and MPO decreased and lipid peroxidation rate increased in both groups (p<0.05). MPO increased before CABG in Group N and decreased in Group C (p<0.05). Conclusion: N-acetylcysteine seems to be a promising agent to decrease the oxidative stress associated with CABG. [ABSTRACT FROM AUTHOR]
- Published
- 2010
35. Melatonin and the pathophysiology of cellular membranes.
- Author
-
Reiter, Russel J., Fuentes-Broto, Lorena, Paredes, Sergio D., Dun-Xian Tan, and Garcia, Joaquin J.
- Subjects
- *
MELATONIN , *PATHOLOGICAL physiology , *CELL membranes , *UNICELLULAR organisms , *LIPIDS , *FREE radicals , *MANAGEMENT science - Abstract
The ability of melatonin to influence the physiology of cell membranes is reviewed in this report. Publications related to this field from 1993 - present. Melatonin is a ubiquitously acting indoleamine which is associated with a variety of important functions within both unicellular and multicellular organisms. By virtue of its ability to protect lipids from free radical damage, melatonin is remarkably beneficial in preserving the morphological and functional integrity of cell membranes. In doing so, it reduces the quantity of oxidized lipids in membranes and maintains them at optimal fluidity, i.e., prevents them from becoming rigid. This contributes significantly to the function of proteins (receptors, channels, pores, etc.) in the cell membranes and helps in preserving the normal physiology of the cells. In addition to these indirect effects of melatonin on membrane function, there is evidence that this indoleamine also may act directly on channels assisting membranes in maintaining proper ion gradients and current. The role of melatonin in the functioning of membrane channels and pores is an area of research that should be experimentally exploited. [ABSTRACT FROM AUTHOR]
- Published
- 2010
36. The Effects of Vitamin E and Selenium on Cypermethrin-Induced Oxidative Stress in Rats.
- Author
-
Atessahin, Ahmet, Yilmaz, Seval, Karahan, Izzet, Pirinçci, Ibrahim, and Tasdemir, Bülent
- Subjects
- *
LABORATORY rats , *OXIDATIVE stress , *VITAMIN E , *SELENIUM , *CATALASE - Abstract
The aim of this study was to investigate whether vitamin E (VitE) and selenium (Se) or VitE plus Se have any the protective and/or augmented effects on cypermethrin (CYP)-induced oxidative stress in liver, brain, kidney and blood in rats. Rats were treated orally with daily 50 mg/kg (~ 1/4 ED50) of CYP in corn oil for five days after administrations of VitE (100 mg/kg sc.), Se (0.1 mg/kg, sc.) and VitE plus Se for three days. Malondialdehyde (MDA) concentrations, glutathione peroxidase (GSH-Px) and catalase (CAT) activities were measured in tissues and blood samples. MDA concentrations in all tissues except plasma, and GSH-Px activities in liver and erythrocytes were significantly increased, but CAT activities in all tissues except erythrocytes were decreased in CYP treated group when compared with the control group. Treatment with VitE prior to CYP reduced sensitivity on CYP-induced oxidative stress. The use of Se was observed to increase both MDA concentrations and antioxidant systems such as GSH-Px and CAT activities. On the other hand, VitE plus Se caused complex alterations in the antioxidant system on the oxidative stress induced by CYP. The results suggest that CYP can induce oxidative stress and VitE can modify CYP metabolism and play a protective role against CYP-induced oxidative stress. [ABSTRACT FROM AUTHOR]
- Published
- 2005
37. Investigation of Antioxidant Enzymes and Some Biochemical Parameters in Ewes with Gangrenous Mastitis.
- Author
-
Çetin, Hayrettin, Gürgöze, Serna Yaralioglu, Keskin, Oktay, Atli, Mehmet Osman, and Korkmaz, Ömer
- Subjects
- *
EWES , *MASTITIS , *ANTIOXIDANTS , *ENZYMES , *GLUTATHIONE - Abstract
This paper investigates the effects of gangrenous mastitis seen with cell necrosis and tissue damage on the activity of erythrocyte glutathione peroxidase (GSH-Px), level of plasma lipid peroxidation (MDA), and some biochemical parameters. To do that, 20 clinically gangrenous mastitis diagnosed and 20 healthy ewes, all from the same flock in a local ewes unit were used as material. Blood samples were kept in test tube containing the disodium salt of ethylenediamine tetraacetic acid (EDTA) as anticoagulant for plasma MDA and erythrocyte GSH-Px analysis and in vacutainer tube for biochemical analyses from the jugular vein. The following measurements were performed in blood serum: glucose, cholesterol, triglyceride, total protein, albumin, sodium (Na), potassium (K), chloride (Cl), calcium (Ca), total bilirubin, alanine transaminase (ALT), aspartate transaminase (AST), urea and creatinine in an autoanalyzer. Erythrocyte GSH-Px activities and plasma MDA levels were found to be significantly higher in the ewes with gangrenous mastitis than healthy ewes. While there was an increase in creatinine and total bilirubin, Na, K, Ca, glucose and albumin were significantly decreased in the gangrenous mastitic group than the control group. In conclusion, in ewes, the severe damage in the inflamed mammary gland tissue during gangrenous mastitis might be said to cause high oxidant stress, which leads to increases in the levels of erythrocyte GSH-Px and plasma MDA. [ABSTRACT FROM AUTHOR]
- Published
- 2005
38. FLUMETHRİN İLE SUBAKUT TOKSİSİTE OLUŞTURULAN RATLARDA BAİCALİNİN ETKİLERİNİN ARAŞTIRILMASI.
- Author
-
ÜVENÇ, Esra Nur
- Abstract
Copyright of Journal of Health Sciences / Sağlık Bilimleri Dergisi is the property of Erciyes Universitesi Saglik Bilimleri Dergisi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2021
39. Protective Effect of Taurine Against Acrylamide-induced Oxidative Stress in Rats
- Author
-
İsmail Küçükkurt, Zeki Gürler, Hasan Hüseyin Demirel, Abdullah Eryavuz, Ulaş Acaröz, Nuray Varol, Sinan Ince, Damla Arslan-Acaroz, Varol, Nuray, and Afyon Kocatepe Üniversitesi
- Subjects
Oksidatif Stres ,Sıçan ,0301 basic medicine ,Lipid Peroksidasyon ,03 medical and health sciences ,030104 developmental biology ,Taurin ,[No Keywords] ,Sitokin ,Akrilamid - Abstract
Bu çalışmada, sıçanlarda akrilamid ile oluşturulan oksidatif strese karşı antioksidan ajan olan taurinin koruyucu etkisinin araştırılması amaçlandı. Toplam 35 Wistar erkek sıçan standart rodent yemiyle beslendi ve 5 eşit gruba ayrıldı. I. Grup: kontrol grubu, II. Grup: sadece 15 mg/kg akrilamid 60 gün boyunca gastrik gavaj yolu ile verildi. III., IV. ve V. gruplara sırasıyla akrilamid (15 mg/kg) ve taurin 50, 100 ve 200 mg/kg/gün olacak şekilde ağızdan gastrik gavaj ile verildi. Akrilamid uygulaması sıçanların kan ve dokularında malondialdehid seviyelerinde önemli bir artışa ve glutatyon seviyelerinde azalmaya neden oldu. Buna ilave olarak, akrilamid uygulaması ile süperoksid dismutaz ve katalaz aktivitelerinin sıçan eritrosit ve dokularında azaldığı belirlendi. Taurin uygulamasının akrilamid ile indüklenen oksidatif stres ve lipid peroksidasyonu azaltarak vücudun antioksidan savunma sistemini iyileştirdiği belirlendi. Bunun yanı sıra, taurin uygulaması ile akrilamid verilen sıçanların karaciğer ve beyin dokularındaki IFN-γ, IL-1β, TNF-α ve NFĸB mRNA ekspresyon düzeylerinin azaldığı gözlendi. Ayrıca, taurin dokularda akrilamid ile indüklenen oksidatif stres sonucu oluşan histopatolojik değişikliklere karşı koruyucu etki gösterdi. Sonuçta doza bağlı olarak taurinin sıçanlarda antioksidan savunma mekanizmasını artırarak akrilamidle indüklenen oksidatif strese karşı koruyucu etki gösterdiği belirlendi. The aim of the present study was to evaluate the protective effect of taurine on acrylamide-induced oxidative stress in rats. Totally, 35 Wistar albino male rats were fed standard rodent diet and divided into 5 equal groups. I. Group: control group, II. Group: only 15 mg/kg acrylamide treated by gastric gavage for 60 days. III., IV., and V. group received 15 mg/kg acrylamide with taurine at dose of 50, 100 and 200 mg/kg/day by gastric gavage. Treatment with acrylamide significantly increased malondialdehyde levels and decreased glutathione levels in blood and tissues of rats. Additionally, acrylamide treatment decreased superoxide dismutase and catalase activities in erythrocyte and tissues of rats. However, treatment of taurine inhibited acrylamide-induced oxidative stress, lipid peroxidation, and enhanced the antioxidant enzymes activities. Besides, mRNA expression levels of IFN-γ, IL-1β, TNF-α, and NFĸB in liver and brain of acrylamide exposed rats were decreased with taurine treatment. Moreover, taurine exhibited protective action against the acrylamide-induced histopathological changes in tissues. In conclusion, it was determined that taurine in a dose-dependent manner has a protective effect against acrylamide induced oxidative stress by increasing antioxidant defense mechanism in rats.
- Published
- 2018
40. Ratlarda Gentamisin İle İndüklenmiş Oksidatif Streste Borun Muhtemel Koruyucu Etkisinin Dokularda Araştırılması#
- Author
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Küçükkurt, İsmail, Arslan Acaröz, Damla, Demirel, Hasan Hüseyin, İnce, Sinan, Eryavuz, Abdullah, Afyon Kocatepe Üniversitesi, Veteriner Fakültesi, Biyokimya Anabilim Dalı, Afyon Kocatepe Üniversitesi, Bayat Meslek Yüksek Okulu, Laborant ve Veteriner Sağlık Bölümü, Afyon Kocatepe Üniversitesi, Veteriner Fakültesi, Farmakoloji ve Toksikoloji Anabilim Dalı, and Afyon Kocatepe Üniversitesi, Veteriner Fakültesi, Fizyoloji Anabilim Dalı
- Subjects
Oksidatif Stres ,Boron,Gentamicin,Histopathology,Lipid Peroxidation,Oxidative Stress,Rat ,Lipid Peroksidasyon ,Histopathology ,Bor,Gentamisin,Histopatoloji,Lipid Peroksidasyon,Oksidatif Stres,Rat ,Doku ,Gentamisin ,Oxidative Stress ,Histopatoloji ,Bor ,Rat ,Lipid Peroxidation ,Gentamicin ,Boron - Abstract
Çalışmada gentamisin maruziyeti ile toksisite oluşturulan ratlarda borun (B) muhtemel koruyucu etkisinin belirlenmesi amaçlandı. Bu amaçla Wistar albino 56 erkek rat kullanıldı. Her grupta 7 hayvan olacak şekilde, kontrol, gentamisin (100 mg/kg i.p.), B-5 (5 mg/kg B, i.p.), B-10 (10 mg/kg B, i.p.), B-20 (20 mg/kg B, i.p.), B-5 + gentamisin (5 mg/kg B ve 100 mg/kg gentamisin, i.p.), B-10 + gentamisin (10 mg/kg B ve 100 mg/kg gentamisin, i.p.), B-20 + gentamisin (20 mg/kg B ve 100 mg/kg gentamisin, i.p.) olarak 8 gruba ayrıldı. Ratlara B uygulaması gentamisin enjeksiyonundan 4 gün önce verilmeye başlandı. Gentamisin uygulamasına 4. gün başlandı ve 12. gün bu uygulama sonlandırıldı. Gentamisin uygulamasının bitişinden itibaren hayvanlara 2 gün daha B verildi. Uygulama sonunda hayvanlardan anestezi altında karaciğer, kalp, beyin, akciğer ve testis dokuları alındı. Gentamisinin karaciğer dokusunda malondialdehid düzeylerini arttırdığı, buna karşın redükte glutatyon düzeylerini, superoksid dismutaz ve katalaz aktivitelerini azalttığı tespit edildi. Histopatolojik incelemede gentamisinin dokularda hasar oluşturduğu gözlendi. Buna karşın, B uygulamasının gentamisin ile indüklenen hasarı azalttığı tespit edildi., The objective of this study was to determine the protective effects of boron on gentamicin induced toxicity in rats. Rats were divided into eight experimental groups containing seven animals in each group. Experimental groups were as follows; control group (fed without B), gentamicin group (100 mg/kg, i.p.), B-5 group (5 mg/kg B, i.p.), B-10 group (10 mg/kg B, i.p.), B-20 group (20 mg/kg B, i.p.), B-5 + gentamicin group (5 mg/kg B and 100 mg/kg gentamicin, i.p.), B-10 + gentamicin group (10 mg/kg B and 100 mg/kg gentamicin, i.p.), and B-20 + gentamicin group (20 mg/kg B and 100 mg/kg gentamicin, i.p.). B was given to rats before four days. Gentamicin was given to rats on the fourth day and finished on the twelfth day. Also, administration of B was completed the fourteenth day. End of the experiment, liver, hearth, brain, lung, and testis tissues were collected from animals under anaesthesia. Administration of gentamicin increased malondialdehyde levels whereas decreased reduce glutathione levels, superoxide dismutase and catalase activities in the liver. Histopathologically, damages were detected in the tissues of gentamicin group. However, treatment of boron resulted in a reversal of gentamicin-induced damages.
- Published
- 2017
41. The ınvestıgatıon of protectıve effect of boron on formaldehyde-ınduced experımental oxıdatıve stress ın a549 lung epıthelıal cells by usıng bıochemıcal and molecular bıology technıques
- Author
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Arslan Acaröz, Damla and Bayşu Sözbilir, Nalan
- Subjects
Apoptozis ,Lipid Peroksidasyon ,A549 ,Hücre Canlılık Testi ,Formaldehit ,İnflamasyon ,Borik Asit - Abstract
Formaldehit yaygın olarak kullanılan suda çok iyi çözünen, renksiz, keskin kokulu kuvvetli elektrofilik özelliği nedeniyle oldukça reaktif bir bir aldehittir. Antiseptik, dezenfektan, kozmetik sanayinde, seralarda, hayvancılıkta, ahşap işlemede, reçine üretiminde, tıpta, endüstriyel alanda, diş hekimliğinde, laboratuvar malzemelerinin üretimi gibi birçok alanda formaldehit kullanılmakla birlikte, sigara dumanında da bulunur ve oksidatif strese yol açar. Gelişen teknoloji ve tıp ile birlikte sağlık açısından çeşitli hastalık olgularında teşhis ve tedavi amaçlı alternatif olarak birçok maddenin kullanımı söz konusu olmaktadır. Bununla birlikte, ülkemizin zengin bor madeni ihtiva etmesi ve bunun kullanımının arttırılması ile ekonomik açıdan da olumlu katkılar sağlanabilecektir. Bu durumun da yapılan veya yapılacak çalışma ve projelerle gerçekleştirilmesi büyük önem arz etmektedir. Bu tez çalışmasında, A549 akciğer epitel hücrelerinde formaldehit ile oluşturulan oksidatif streste borik asitin etkisini belirlemek amacıyla hücre canlılık testi (MTT), indirgenmiş glutatyon (GSH), malondialdehid (MDA), süperoksid dismutaz (SOD), katalaz (CAT) düzeyleri analiz edildi. Bunlara ilaveten oluşan inflamasyonda borik asitin etkisini belirlemek amacıyla β-aktin, Tnf-α, kaspaz-3, Bcl-XL ve NFĸB genlerinin mRNA ekspresyon düzeyleri moleküler olarak araştırıldı. Bu amaçla, A549 hücre hatları 12 saat borik asit 2,5;5 ve 10 mM düzeylerine maruz bırakıldı. Daha sonra 4 saat süresince 100 μM formaldehit hücre hatları üzerine uygulandı. Uygulama sonrasında, formaldehitin hücre canlılığını önemli derecede azalttığı, hücre lizatlarında MDA düzeylerini artıtdığı, GSH düzeyini azalttığı, SOD ve CAT enzim aktivitesi azalttığı, NO düzeyleri üzerine belirgin bir etki göstermediği belirlendi. Tnf-α, NFkB ve kaspaz-3 mRNA ekspresyon düzeylerinin formaldehit uygulaması ile arttığı. Buna karşın Bcl-XL mRNA ekspresyon düzeylerinde önemli bir değişim gözlenmediği belirlendi. Borik asitin formaldehit maruziyeti ile oluşan lipid peroksidasyonu, azalan antioksidan enzim aktivitesini, inflamasyon ve apoptozda rol alan genlerin artan mRNA ekspresyon düzeylerini tersine çevirdiği tespit edildi. Sonuç olarak, bor kaynağı olan borik asitin formaldehit maruziyeti ile A549 hücrelerinde oluşan oksidatif stres, inflamasyon ve apoptoziste önemli rol oynadığı ve hücre gelişimi üzerine olumlu etkilerinin olduğu belirlendi. Formaldehyde is a highly reactive aldehyde due to its electrophilic character, which is colourless, pungent, well soluble in water and it has a strong odour. Formaldehyde is used in many fields such as cosmetics industry, greenhouses, livestock, wood processing, production, environment, industry, dentistry and it is also used in the production of resin, laboratory materials, antiseptics, disinfectants. Besides, it is found in cigarette smoke, and it causes oxidative stress. With the development of technology and medicine, many substances are used as an alternative for diagnosis and treatment in various diseases. Turkey possesses rich boron mine sources. The increase in the usage of boron will provide positive economic benefits. Therefore, it is of utmost importance for performing researches and projects in this area. In this thesis, cell viability test (MTT), reduced glutathione (GSH), malondialdehyde (MDA) levels and activities of superoxide dismutase (SOD), catalase (CAT) were analysed to determine the effect of boric acid against formaldehyde-induced oxidative stress in A549 lung epithelial cells. Also, mRNA expression levels of β-actin, Tnf-α, caspase-3, Bcl-XL and NFκB genes were molecularly evaluated to determine the effect of boric acid in inflammation. For this purpose, A549 cell lines were exposed to 2.5, 5 and 10 mM boric acid for 12 hours. Then 100 μM formaldehyde was applied for 4 hours on cell lines. After application, it was determined that formaldehyde significantly reduced cell viability whereas increased MDA levels. However, it decreased GSH levels, SOD and CAT enzyme activities of cell lysates, and had no significant effect on NO levels of culture medium. Also, it was determined that formaldehyde administration increased Tnf-α, NFkB and caspase-3 mRNA expression levels, yet no significant change was observed in Bcl-XL mRNA expression levels. It was found that boric acid reversed lipid peroxidation, decreased antioxidant enzyme activity, increased mRNA expression levels of genes involved in inflammation and apoptosis which are caused by formaldehyde exposure. As a result, it was determined that boric acid, as a boron source, plays a significant role in formaldehyde-induced oxidative stress, inflammation and apoptosis in A549 cells and has positive effects on cell growth. Bu Tez Afyon Kocatepe Üniversitesi Bilimsel Araştırma Projeleri Koordinasyon Birimi tarafından 15.SAĞ.BİL.12 proje numarası ile desteklenmiştir
- Published
- 2017
42. Effects of carvacrol, alfa pinene and cineole-rich essential oil mixed on performance, egg production and quality and egg lipid peroxidation in laying quails
- Author
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Bülbül, Aziz, Ulutaş, Elmas, Özdemir, Vural, Bülbül, Tuba, and Başka Kurum
- Subjects
lipid peroksidasyon ,alfa pinen ,Carvacrol ,quails ,cineole ,oxidative stress ,alfa pinene ,sineol ,bıldırcın ,performance ,Karvakrol ,performans - Abstract
Amaç: Bu araştırma bıldırcın rasyonlarına katılan karvakrol, alfa pinen ve sineol'den zengin esansiyel yağ karışımlarının performans, yumurta kalitesi ile yumurta lipid peroksidasyonu üzerine etkilerini belirlemek amacıyla yapıldı. Gereç ve Yöntem: Araştırmada toplam 420 adet (280 dişi ve 140 erkek) sekiz haftalık yaşta Japon bıldırcını (Coturnix coturnix japonica) kullanıldı. Bıldırcınlar her birinde 60 adet bulunan 1 kontrol ve 6 deneme grubuna ayrıldı. Her bir grup da kendi arasında 15 bıldırcın içeren 4 alt gruba bölündü. Kontrol grubu temel rasyonla beslendi. Karvakrol (K), alfapinen (P) ve sineol (S)’den oluşan deneme grubu rasyonlarına 100 ve 1000 mg/kg esansiyel yağ karışımları ilave edildi. Araştırma 8 haftada tamamlandı. Bulgular: Araştırmada yem tüketiminin P1000 ve S1000 gruplarında azaldığı (P, Aim: The present study was conducted to determine the effects of essential oil mixtures rich in carvacrol, alpha-pinene and cineole supplementation in laying quail diets on performance, egg quality, and egg lipid peroxidation. Materials and Methods: A total of 420 (280 females and 140 males) eight-week-old Japanese quails (Coturnix coturnix japonica) were used. They were divided into 1 control group and 6 treatment groups containing 60 quails in each. Each group was divided into four replicate groups each containing 15 quails. The control group was fed basal diet. The diets of treatment groups occurring from carvacrol (C), alpha-pinene (P) and cineole (Cn) were supplemented with 100 and 1000 mg/kg essential oil mixed. The experimental period was lasted for 8 weeks. Results: The results showed that feed consumption decreased in the P1000 and Cn1000 groups (P
- Published
- 2017
43. Antimicrobial and antioxidant activity of Prunus cerasifera cv. 'Pissardii Nigra'
- Author
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Ferda Göztok and Sevda Kırbağ
- Subjects
antimicrobial activity ,Prunus,antimikrobial aktivite,DPPH,vitamin,LPO ,Fen ,DPPH ,Science ,vitamin ,antioxidant effect ,lipid peroxidation ,General Medicine ,Molecular biology ,antioksidant ,Lipid peroxidation ,chemistry.chemical_compound ,lipid peroksidasyon ,chemistry ,antimikrobial aktivite ,Prunus ,Prunus,antioxidant effect,antimicrobial activity,DPPH,lipid peroxidation - Abstract
Bu çalışmada; Elazığ ilinde toplanan P. cerasifera cv. “Pissardi Nigra“ ekstraktlarının antioksidan ve antimikrobiyal aktiviteleri araştırıldı. Bitki özlerinin DPPH serbest radikal temizleme aktivitesi, lipid peroksidasyon önleme etkinliği ve vitamin içerikleri ölçüldü. Eksraktların 25 µl konsantrasyondan itibaren serbest radikal temizleme etkisi gösterdiği ve bu etkinin doza bağımlı arttığı tespit edildi. In vitro ortamda FeCI2 grubunda lipid peroksidasyon düzeylerinin kontrol grubuna göre yüksek miktarlarda arttığı, meyve ekstraktı ve FeCI2 içeren gruplardaki lipid peroksidasyon seviyelerinin belirli oranlarda azaldığı görüldü. Ekstraktların en fazla E vitamini (50.60-57.32 mg/g) ihtiva ettiği belirlendi. Ayrıca, meyve kısımlarından elde edilen özütlerin 13 bakteri (14-22 mm), 3 maya (14-18 mm) ve 2 dermofit fungus (16-18 mm) üzerine farklı düzeylerde antimikrobiyal etki gösterdikleri tespit edilmiştir., In this study, antioksidant and antimicrobial activities of Prunus cerasifera cv. Pissardi Nigra collected from Elazığ were researched. The free radical scavenging activity (DPPH), lipid peroxidation inhibitory activity and vitamin amounts of plant extracts were measured. It showed that the free radical scavenging effect from 25 μl concentration of extracts. The effect was found to dose dependently increased. In vitro medium, it was determined that in FeCI2 group, lipid peroxidation amounts increases in a large ration with respect to the control group and lipid peroxidation levels in groups which includes plant extracts and FeCI2, decreases in certain amounts. According to results of the experiment, it was determined to contain a high amount of vitamin E in the extract (50.60-57.32 g/g). In addition, the antimicrobial activity studies of extract were shown to inhibit to different degrees the growth on thirteen bacteria (14-22 mm), three yeast (14-18 mm) and two dermatophyte (16-18 mm).
- Published
- 2016
44. Kerevit Yemine Katılan n-3 Serisi Yağ Asitlerinin Pleopodal Yumurta, Hepatopankreas ve Kas Dokusunda Lipid Peroksidasyon ve Glutatyon Düzeylerine Etkisi
- Author
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HARLIOĞLU, Muzaffer Mustafa, KÖPRÜCÜ, Kenan, YILMAZ, Ökkeş, ÇAKMAK, M. Nuri, AKSU, Önder, YONAR, Serpil MİŞE, HARLIOĞLU, Ayşe Gül, DURAN, Tuba ÇAKMAK, AYDIN, Sevinç, and ÖZCAN, Sinan
- Subjects
Astacus leptodactylus ,Fen ,Science ,n-3 series fatty acid ,Astacus leptodactylus,n-3 series fatty acid,lipid peroxydation,glutathione ,glutatyon ,n-3 serisi yağ asidi ,lipid peroksidasyon ,lcsh:TA1-2040 ,lipid peroxydation ,lcsh:Q ,glutathione ,Astacus leptodactylus,n-3 serisi yağ asidi,lipid peroksidasyon,glutatyon ,lcsh:Engineering (General). Civil engineering (General) ,lcsh:Science - Abstract
Bu çalışmada, kerevit yemine farklı oranlarda katılan n-3 serisi yağ asitlerinin pleopodal yumurta, hepatopankreas ve kas dokusunda (abdomen eti) malondialdehit (MDA) ve glutatyon (GSH) düzeylerine etkileri araştırıldı. Bu amaçla n-3 serisi yağ asidi içermeyen, toplam enerji düzeyi 3600 kcal/kg ve ham protein oranı %35 olan bir kontrol yemi (Deneme 1) hazırlandı. Bu yeme %1, 2 ve 3 oranlarında n-3 serisi yağ asidi ilave edilerek sırasıyla 2, 3 ve 4 nolu deneme yemleri oluşturuldu. Üç tekrarlı olarak yürütülen çalışmada, 107 günlük besleme sonunda, kerevitlerden pleopodal yumurta, hepatopankreas ve kas doku örnekleri alınarak, MDA ve GSH düzeyleri araştırıldı. Sonuçta; pleopodal yumurtaların MDA ve GSH düzeylerinde gruplar arasında önemli farklılıklar belirlendi (P, In this study, the effects of dietary n-3 series fatty acids on the malondialdehyde (MDA) and glutathione(GSH) levels in pleopodal egg, hepatopancreas and muscle of freshwater crayfish (Astacus leptodactylus) were investigated. For this aim, a control diet (D1) containing 3600 kcal/kg gross energy and 35% crude protein was prepared. The experiment was carried out with the three following treatments: control groups (D1, not supplemented n-3 series fatty acids), D2 (1%), D3 (2%) and D4 (3%). At the end of feeding for 107 days, MDA and GSH levels in pleopodal egg, hepatopancreas and muscle of crayfish were investigated. In conclusion, a significant difference in the level of MDA and GSH of pleopodal egg was determined between the experimental groups (P
- Published
- 2011
45. The effects of dietary supplementation of false flax (Camelina sativa L.) meal on performance, egg quality traits, and lipid peroxidation in laying quails
- Author
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Tuba Bulbul, Elmas Ulutas, and Başka Kurum
- Subjects
False flax meal ,lipid peroksidasyon ,laying quail ,egg quality ,lipid peroxidation ,Ketencik küspesi ,yumurta kalitesi ,False flax meal,performance,egg quality,lipid peroxidation,laying quail ,yumurtacı bıldırcın ,Ketencik küspesi,performans,yumurta kalitesi,lipid peroksidasyon,yumurtacı bıldırcın ,performance ,performans - Abstract
Aim: This study was carried out to determine the effects of false flax (Camelina sativa L.) meal supplementation to laying quail diets on performance, egg quality traits, and lipid peroxidation in serum and eggs. Materials and Methods: A total of 240 (160 females and 80 males) eight-week-old Japanese quails (Coturnix coturnix japonica) divided into one control group and four treatment groups containing 48 quails. Each group was divided into four replicate groups each containing 12 quails. The control group was fed diet containing soybean meal basis without false flax meal (0% FFM). The FFM was used at level of 5% (FFM5), 10% (FFM10), 15% (FFM15), and 20% (FFM20) in treatment diets. The experimental period was lasted for 8 weeks.Results: The results showed that feed intake was lowest in the FFM15 and FFM20 groups (P, Amaç: Bu araştırma yumurtacı bıldırcın rasyonlarına ketencik (Camelina sativa L.) küspesi ilavesinin performans ve yumurta kalite özellikleri ile serum ve yumurtada lipid peroksidasyon üzerine etkisini belirlemek amacıyla yapıldı.Gereç ve Yöntem: Araştırmada toplam 240 adet (160 dişi ve 80 erkek) sekiz haftalık Japon bıldırcını (Coturnix coturnix japonica) her biri 48 bıldırcından oluşan 1 kontrol ve 4 deneme grubuna ayrıldı. Her bir grup da 12 bıldırcından oluşan 4 alt gruba ayrıldı. Kontrol grubu ketencik küspesi (KK) ilavesi yapılmayan (%0 KK) soya fasülyesi küspesi temeline dayanan temel rasyonla beslendi. Deneme gruplarının rasyonlarında KK %5 (KK5), 10 (KK10), 15 (KK15) ve 20 (KK20) düzeylerinde kullanıldı. Araştırma 8 haftada tamamlandı.Bulgular: Araştırmada yem tüketiminin KK15 ve KK20 gruplarında en düşük olduğu belirlendi (P
- Published
- 2015
46. Düşük Doz Metotreksatın Ratlarda Serebral İskemi Reperfüzyon Üzerine Olan Etkileri
- Author
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BULENT BAKAR, Kose, Emine Arzu, Sari, Elif, Sarkarati, Bahram, Atasoy, Pinar, Kırıkkale Üniversitesi, İstanbul Medipol Üniversitesi, Bakar, Bulent Kirikkale Univ, Sch Med, Neurosurg, Kirikkale, Turkey, Kose, Emine Arzu Istanbul Medipol Univ, Anaestesiol & Reanimat, Istanbul, Turkey, Sari, Elif Kirikkale Univ, Sch Med Plast & Reconstruct Surg, Kirikkale, Turkey, Sarkarati, Bahram Hacettepe Univ, Sch Med, Biochem, Ankara, Turkey, and Atasoy, Pinar Kirikkale Univ, Sch Med, Pathol, Kirikkale, Turkey
- Subjects
musculoskeletal diseases ,İskemi Reperfüzyon Yaralanması ,Low Dose Methotrexate ,Lipid Peroksidasyon ,Pyknotic Neuron ,Ischemia Reperfusion Injury ,Nörolojik Bilimler ,Lipid Peroxidation ,Düşük Doz Metotreksat ,Piknotik Nöron - Abstract
Amaç: Serebral iskemi reperfüzyon yaralanmalarında oluşan oksidatif stress eksitotoksisiteye, kan-beyin bariyerinde bozulmaya ve inflamasyon süreçlerinin oluşmasına neden olur. Bu çalışmada ratlarda oluşturulan hipoksi reperfüzyon yaralanmasında düşük doz metotreksatın olası koruyucu etkileri araştırılmıştır. Yöntem ve Gereç: Serebral iskemi reperfüzyon yaralanması oluşturmak amacıyla KONTROL grubu haricindeki tüm deney hayvanlarının (N=30) iki taraflı karotis arterlerine 30 dakika süreyle geçici anevrizma klibi konulmuştur. Yaralanmadan 4 saat sonra KONTROL ve SHAM grubu haricindeki hayvanlara intraperitoneal düşük doz metotreksat (1.25 mg/kg/gün) verilmiştir. Takiben 72 saatin sonunda KONTROL (N=6), MTX-A (N=8) ve SHAM-A (N=6) grubundaki hayvanlara ve 10 günün sonunda MTX-C (N=8) ve SHAM-C (N=8) grubundaki hayvanlara ötenazi uygulanıp beyin dokuları çıkarılmış; hipokampustaki dejenere (piknotik) nöron hücre sayıları ve dokulardaki lipid peroksidasyon (LPO) düzeyleri istatistiksel analize tabi tulmuştur. Bulgular: KONTROL grubunun piknotik nöron sayılarının SHAM-A, SHAM-C, MTX-A ve MTX-C gruplarınınkinden düşük olduğu saptanmıştır. Öte yandan SHAM-A ve MTX-A grubuna ait sayım değerlerinin sırası ile SHAM-C ve MTX-C gruplarının değerlerine göre belirgin yüksek olduğu tespit edilmiştir. KONTROL grubunun LPO düzeylerinin SHAM-A and MTX-A gruplarından düşük ancak MTX-C ve SHAM-C gruplarının düzeyleri ile aynı olduğu bulunmuştur. Ayrıca, MTX-A grubunun LPO değerlerinin MTX-C grubuna göre daha yüksek olduğu da görülmüştür. Sonuç: Araştırmanın sonunda, düşük doz metotreksat tedavisinin ratların nöronal hücelerini serebral iskemi reperfüzyon yaralanmasının yıkıcı etkilerinden koruyamadığı gözlenmiştir. Background: During cerebral ischemia reperfusion injury, oxidative stress leads to excitotoxicity, blood brain barrier dysfunction and inflammation. This study was designed to evaluate possible protective effects of low dose methotrexate on cerebral transient ischemia reperfusion injury in rat. Methods: Except CONTROL group, temporary aneurysm clips were performed to both common carotid arteries of rats for duration of 30 minutes. Four hours later, except CONTROL and SHAM groups, methotrexate (1.25 mg/kg/day) was administered intraperitoneally. Seventy two hours later, animals of CONTROL, MTX-A and SHAM-A group; and ten days later animals of MTX-C and SHAM-C group were sacrificed and hippocampal pyknotic neuronal cell count results and tissue lipid peroxidation (LPO) values were analyzed statistically. Results: Pyknotic cell count values of CONTROL group were lower than SHAM-A, SHAM- C, MTX-A and MTX-C group values. Cell count values of SHAM-A and MTX-A group were higher than SHAM-C and MTX-C values, respectively. LPO values of CONTROL group were lower than SHAM-A and MTX-A values, but not different from MTX-C and SHAM-C values. LPO values of MTX-A group higher than MTX-C group values. Conclusion: Cell count values and LPO values demonstrated that low dose methotrexate could not prevent neuronal cells from destructive effects of transient ischemia reperfusion injury in rat.
- Published
- 2015
47. Sıçanlarda deneysel böbrek iskemi-reperfüzyon hasarında çinko ve melatoninin etkisi
- Author
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Yilmaz, Mine, Moğulkoç, Rasim, Enstitüler, Sağlık Bilimleri Enstitüsü, Fizyoloji (Tıp) Ana Bilim Dalı, and Fizyoloji Anabilim Dalı
- Subjects
Fizyoloji ,Kidney diseases ,Physiology ,Renal ischaemi-reperfusion ,Lipid peroxidation ,Kidney ,Lipid peroksidasyon ,Rats ,Reperfusion injury ,Zinc ,Ischemia ,Çinko ,Reperfusion ,Böbrek iskemi-reperfüzyonu ,Rat ,Melatonin - Abstract
Böbrek iskemi-reperfüzyonunda oluşan oksidatif stres direkt olarak glomerular ve tubüler epitelyumu etkiler. Oksijen serbest radikaller renal iskemi-reperfüzyon yaralanmasının patofizyolojisinde önemli rol oynamaktadır. Mevcut çalışmanın amacı sıçanlarda deneysel olarak böbrek iskemi-reperfüzyon hasarında 3 hafta süreli çinko, melatonin ve çinko + melatonin takviyesinin doku ve plazmadaki malondialdehid (MDA) ile eritrosit ve dokudaki glutatyon (GSH) düzeyleri ve böbrek histolojine olan olan etkisini belirlemekti. Çalışma ağırlıkları ortalama 250 gr olan erkek Wistar albino ratlar üzerinde gerçekleştirildi. Deney grupları şu şekilde oluşturuldu. 1-Kontrol, 2-Sham, 3-İskemi-Reperfüzyon, 4-Çinko + İskemi-Reperfüzyon, 5- Melatonin+ İskemi-Reperfüzyon, 6-Çinko +Melatonin + İskemi-Reperfüzyon grubu. Çinko ve melatonin iskemi-reperfüzyon öncesi 3 mg/kg dozunda 3 hafta boyunca peritoniçi günlük olarak uygulandı. Renal iskemi-reperfüzyon genel anestezi yapılan hayvanlarda sol böbreklerin 45 dakika iskemi ve 1 saat reperfüzyonu şeklinde oluşturuldu. Uygulamanın bitiminde öldürülen hayvanlardan alınan kan ile böbrek dokusundaki MDA ve GSH seviyeleri ile dokudaki histolojik değişiklikler belirlendi. Böbrek dokusu ve eritrositlerde GSH değerlerinin çinko ve melatonin takviyesi yapılan gruplarda yükseldiği tespit edildi (P, Oxidative stres during the renal ischaemi-reperfusion affect directly glomeruler and tubuler epitelium. Oxygen free radicals have roles in pathophysiology of renal ischaemi-reperfusion injury. The aim of present study was determined to the effects of 3 weeks zinc, melatonin or zinc plus melatonin on plasma and tissue malondialdehyde (MDA) and eryhtrocyte and tissue glutathione levels and renal histology. Experiments were held on the Wistar-albino rats which mean body weight 250 gr. Groups were design as 1-Control, 2-Sham, 3-Ischaemi-Reperfusion, 4- Zinc + Ischaemi-Reperfusion, 5- Melatonin + Ischaemi-Reperfusion, 6-Zinc + Melatonin + Ischaemi-Reperfusion. Zinc and melatonin were supplemented as 3 mg/kg/day by intraperitoneally. For the renal ischaemi-reperfusion animals were anesthesized and left kidneys ischaemized and reperfused 45 and 60 minutes, respectively. Following that mentioned procedure animals were killed and MDA and GSH samples analyzed in renal tissue and blood and also histopathologic evaluation was done. GSH levels were increased in zinc and melatonin supplemented groups (P, Bu araştırma Selçuk Üniversitesi Bilimsel Araştırma Projeleri Koordinatörlüğü tarafından 12202009 proje numarası ile desteklenmiştir.
- Published
- 2014
48. Ooferektomize ratlarda L- karnitinin oksidatif stres parametreleri üzerine etkisinin araştırılması
- Author
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Canbolat, Emel Peri, Sağsöz, Nevin, and Kırıkkale Üniversitesi, Fen Bilimleri Enstitüsü, Fizik Ana Bilim Dalı
- Subjects
Ooferektomi ,U-TIP/1618 ,Menopoz ,MDA ,TAS ,TOS ,L- karnitin ,Lipid peroksidasyon ,NO - Abstract
Tez (Tıpta Uzmanlık) -- Kırıkkale Üniversitesi 88035 …
- Published
- 2012
49. Akut Yüzme Egzersizi Yaptırılan Diyabetik Sıçanlarda Intraperitoneal Çinko Sülfat Uygulamasının Kas Dokusundaki Lipid Peroksidasyonuna Etkisi
- Author
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Mürsel Biçer, Sadettin Ünsal, Selçuk Üniversitesi, Fen Fakültesi, Biyoloji Bölümü, Ünsal, Sadettin, and Selçuk Üniversitesi
- Subjects
Zinc ,lipid peroksidasyon ,diabetes ,muscle tissue ,exercise ,Çinko ,egzersiz ,lipid peroxidation ,kas doku ,Genel ve Dahili Tıp ,diyabet - Abstract
Amaç: Bu çalışmanın amacı, streptozotosin ile diyabet oluşturulmuş akut yüzme egzersizi yaptırılan sıçanlarda çinko uygulamasının kas dokusundaki lipid peroksidasyonu ve antioksidan kapasite üzerindeki etkisinin araştırılmasıdır. Gereç ve Yöntem: Spraque-Dawley cinsi 80 adet erişkin erkek ratlar kullanılan çalışmada. deney hayvanları eşit sayıda 8 gruba ayrıldı: Grup 1, genel kontrol. Grup 2, çinko uygulanan kontrol. Grup 3, çinko uygulanan diyabetli kontrol. Grup 4, yüzme kontrol. Grup 5, çinko uygulanan yüzme. Grup 6, çinko uygulanan diyabetli yüzme. Grup 7, diyabetli yüzme. Grup 8, diyabet grubu. Diyabet oluşturmak için hayvanlara 40 mg/kg dozunda intraperitoneal (ip) streptozotosin (STZ) enjekte edildi. Enjeksiyonlar 24 saat sonra aynı dozda tekrarlandı. Son enjeksiyonlardan 6 gün sonra kan glukozu 300 mg/dl ve üzerinde olan hayvanlar diyabetik olarak kabul edildi. Hayvanlara 4 hafta boyunca 6 mg/kg/gün ip çinko sülfat verildi. Dört hafta süren çalışmanın bitiminde deney hayvanlarından dekapitasyonla alınan kas doku örneklerinde MDA (nmol/gram/ protein) ve GSH (mg/dl/gram protein) düzeyleri tayin edildi. Bulgular: Kas dokusundaki en yüksek MDA değerleri grup 4 ve 7’de elde edildi. Grup 5 ve 6’nın kas MDA seviyeleri grup 4 ve 7’den düşük, diğer grupların tamamından yüksekti. Grup 5 ve 6 en yüksek kas GSH değerlerine sahipti. Grup 4’ün aynı parametresi grup 5 ve 6’dan düşük diğer grupların tamamından daha yüksekti. Kas dokusundaki en düşük GSH düzeyleri Grup 7 ve 8’de elde edildi. Sonuç: Çalışmanın sonuçları diyabetik sıçanlarda zorlu yüzme egzersizinin yol açtığı kas dokusundaki lipit peroksidasyonu üzerinde intraperitoneal çinko sülfat uygulamasının koruyucu rolü olduğunu göstermektedir., Objective: The objective of the present study is to explore the effect of zinc supplementation on lipid peroxidation and antioxidant capacity in the muscle tissue of rats which were induced diabetes with streptozotocin and subjected to acute swimming exercise. Material and Method: The study included 80 adult, male, Spraque-Dawley type rats, which were equally allocated to 8 groups. Group 1, general control. Group 2, zinc-supplemented control. Group 3, zinc-supplemented diabetic control. Group 4, swimming control. Group 5, zinc-supplemented swimming. Group 6, zinc-supplemented diabetic swimming. Group 7, diabetic swimming. Group 8, diabetes group. The animals were injected with 40 mg/kg intraperitoneal (ip) streptozotocin (STZ) to induce diabetes. The injections were repeated after 24 hours. The animals whose blood glucose stood at or over 300 mg/dl on day 6 following the last injection were considered diabetic. The animals were supplemented with 6 mg/kg/day ip zinc sulfate for 4 weeks. At the end of the 4-week study, the animals were decapitated to collect muscle tissue samples, which were analyzed in terms of MDA (nmol/gram/protein) and GSH (mg/dl/gram protein) levels. Results: The highest MDA values in the muscle tissue were established in groups 4 and 7. Muscle MDA levels in groups 5 and 6 were lower than those in groups 4 and 7, but higher than the levels in all other groups. Groups 5 and 6 had the highest muscle GSH values. Group 4 had this parameter lower than groups 5 and 6, but higher than others. The lowest GSH levels in the muscle tissue were obtained in groups 7 and 8. Conclusion: Results of the study demonstrate that zinc sulfate supplementation has a protective role against lipid peroxidation caused by strenuous swimming exercise in the muscle tissue of diabetic rats.
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