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Bozali K, Metin Guler E, Kocyigit A. A Study on Thymoquinone: Antioxidant Capacity and Anticancer Activities in LoVo Colorectal Cancer Cells. Chem Biodivers 2024; 21:e202301886. [PMID: 38308180 DOI: 10.1002/cbdv.202301886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 01/17/2024] [Indexed: 02/04/2024]
Abstract
Thymoquinone has antioxidant and anticancer effects. This study investigates the cytotoxic, genotoxic, and apoptotic effects of black seed and its active ingredient, thymoquinone on colorectal cancer cells. The antioxidant content of Black seed methanolic extracts (BSME) with different concentrations (50, 500 and 1000 μg/mL) were determined by the photometric methods. The reactive oxygen production (iROS) of BSME and thymoquinone on colorectal cancer cells (LoVo) and normal epithelial cells (CCD18Co) were analyzed by the fluorometric methods. A luminometric glutathione kit was employed to observe the changes in intracellular glutathione (GSH) levels. Cytotoxicity was determined by the ATP method, genotoxicity was determined by Comet Assay, and the apoptosis was identified by the Acridine Orange/Ethidium Bromide (AO/EB) double dye method. The cytotoxicity was increased by BSME and thymoquinone in LoVo cells in a dose-dependent manner (p<0.001). BSME and thymoquinone also increased iROS, and induced apoptosis and DNA damage (p<0.001). High doses of BSME and thymoquinone on cancer and healthy cells have cytotoxic, genotoxic and apoptotic effects with pro-oxidant effects. Colorectal cancer cells are more sensitive than healthy cells.
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Affiliation(s)
- Kubra Bozali
- Avans University of Applied Science, Faculty Life Sciences and Environmental Technology, 4818 AJ, Breda, The Netherlands
- Department of Medical Biochemistry, Faculty of Hamidiye Medicine, University of Health Sciences Turkey, 34668, Istanbul, Türkiye
| | - Eray Metin Guler
- Department of Medical Biochemistry, Faculty of Hamidiye Medicine, University of Health Sciences Turkey, 34668, Istanbul, Türkiye
- Department of Medical Biochemistry, Haydarpasa Numune Health Application and Research Center, 34668, İstanbul, Türkiye
| | - Abdurrahim Kocyigit
- Department of Medical Biochemistry, Bezmialem Vakif University, Faculty of Medicine, 34093, Istanbul, Türkiye
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Kurtulmus A, Sahbaz C, Elbay A, Guler EM, Sonmez Avaroglu G, Kocyigit A, Ozdemir MH, Kirpinar I. Clinical and biological correlates of optical coherence tomography findings in schizophrenia. Eur Arch Psychiatry Clin Neurosci 2023; 273:1837-1850. [PMID: 37022475 DOI: 10.1007/s00406-023-01587-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 03/06/2023] [Indexed: 04/07/2023]
Abstract
There is a growing body of evidence indicating retinal layer thinning in schizophrenia. However, neuropathological processes underlying these retinal structural changes and its clinical correlates are yet to be known. Here, we aim to investigate the clinical and biological correlates of OCT findings in schizophrenia. 50 schizophrenia patients and 40 healthy controls were recruited. Retinal nerve fiber layer (RNFL), ganglion cell layer (GCL), inner plexiform layer (IPL), and macular and choroidal thicknesses were recorded. A comprehensive battery of neuropsychological tests was applied. Fasting glucose, triglycerides and HDL-cholesterol levels, TNF-α, IL-1β and IL-6 levels were measured. Right IPL was significantly thinner in patients than the controls after controlling for various confounders (F = 5.42, p = .02). Higher IL-6, IL-1β, and TNF-α levels were associated with decreased left macular thickness (r = - 0.26, p = .027, r = - 0.30, p = 0.012, and r = - 0.24, p = .046, respectively) and higher IL-6 was associated with thinning of right IPL (r = - 0.27, p = 0.023) and left choroid (r = - 0.23, p = .044) in the overall sample. Thinning of right IPL and left macula were also associated with worse executive functioning (r = 0.37, p = 0.004 and r = 0.33, p = 0.009) and attention (r = 0.31, p = 0.018 and r = 0.30, p = 0.025). In patients with schizophrenia, IPL thinning was associated with increased BMI (r = - 0.44, p = 0.009) and decreased HDL levels (r = 0.43, p = 0.021). Decreased TNF-α level was related to IPL thinning, especially in the left eye (r = 0.40, p = 0.022). These findings support the hypothesis that OCT might provide the opportunity to establish an accessible and non-invasive probe of brain pathology in schizophrenia and related disorders. However, future studies investigating retinal structural changes as a biological marker for schizophrenia should also consider the metabolic state of the subjects.
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Affiliation(s)
- Ayse Kurtulmus
- Department of Psychiatry, Bezmialem Vakif University, Istanbul, Turkey.
- Department od Psychiatry, Istanbul Medeniyet University Goztepe Research and Training Hospital, Istanbul, Turkey.
| | - Cigdem Sahbaz
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Ahmet Elbay
- Department of Ophthalmology, Bezmialem Vakif University, Istanbul, Turkey
| | - Eray Metin Guler
- Department of Medical Biochemistry, Hamidiye School of Medicine, University of Health Sciences, Istanbul, Turkey
| | - Gamze Sonmez Avaroglu
- Fatih Community Mental Health Centre, Haseki Research and Training Hospital, Istanbul, Turkey
| | - Abdurrahim Kocyigit
- Department of Medical Biochemistry, Bezmialem Vakif University, Istanbul, Turkey
| | | | - Ismet Kirpinar
- Department of Psychiatry, Bezmialem Vakif University, Istanbul, Turkey
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Balıbey FB, Bahadori F, Ergin Kizilcay G, Tekin A, Kanimdan E, Kocyigit A. Optimization of PLGA-DSPE hybrid nano-micelles with enhanced hydrophobic capacity for curcumin delivery. Pharm Dev Technol 2023; 28:843-855. [PMID: 37773031 DOI: 10.1080/10837450.2023.2264964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 09/26/2023] [Indexed: 09/30/2023]
Abstract
Poly (D, L Lactic-co-Glycolic acid) (PLGA) is an FDA-approved polymer. It is distinguished from other biocompatible polymers by its feasibility of production and safety for intravenous cancer tumor targeting. Curcumin (CUR) is a natural molecule with versatile bioactivities including inhibiting the nuclear Factor kappa B (Nf-kB) levels in cancer cells, increased by chemotherapy agents. Our group previously reported a successful decrease in the p65 (RelA) subunit of Nf-kB using 125 µg/ml CUR loaded into PLGA nano-micelles. However, this amount was insufficient to reduce all Nf-kB subunits. This study aimed to increase the hydrophobic capacity of PLGA toward CUR using 1,2-Distearoyl-sn-glycerol-3-phosphoethanolamine (DSPE), an FDA-approved phospholipid. PLGA-DSPE hybrid nano-micelles (HNM) were prepared using two different methods, oil-in-water (OiWa) and film preparation-rehydration (FiRe). The encapsulated CUR was successfully increased to 250 µg/ml using the FiRe method. Physicochemical characterization of CUR-loaded HNM was performed using DLS FT-IR, DSC, and HPLC. In HNM with a size of 156.6 nm, DSPE, incorporated with all functional groups of PLGA, and CUR was trapped in the core of this structure. The release profile of CUR was suitable for targeted cancer therapy and the Encapsulation Efficacy was 92%.
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Affiliation(s)
- Fatmanur Babalı Balıbey
- Department of Biotechnology, Institute of Health Sciences, Bezmialem Vakif University, Fatih, Istanbul, Turkey
- Department of Medical Biochemistry, Bezmialem Vakif University, Fatih, Istanbul, Turkey
| | - Fatemeh Bahadori
- Department of Pharmaceutical Biotechnology, BezmialemVakif University, Istanbul, Turkey
- Department of Analytical Chemistry, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | | | - Adem Tekin
- Informatics Institute, Istanbul Technical University, Maslak, Istanbul, Turkey
| | - Ebru Kanimdan
- Department of Medical Biochemistry, Bezmialem Vakif University, Fatih, Istanbul, Turkey
| | - Abdurrahim Kocyigit
- Department of Medical Biochemistry, Bezmialem Vakif University, Fatih, Istanbul, Turkey
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Kocyigit A, Guler EM, Durmus E, Yenigun VB, Kanimdan E, Ozman Z, Yasar O, Goren AC, Hekimoglu ER, Oruc HH, Aydogdu G. Propolis Enhances 5-Fluorouracil Mediated Antitumor Efficacy and Reduces Side Effects in Colorectal Cancer: An in Vitro and in Vivo Study. Chem Biodivers 2023; 20:e202300591. [PMID: 37497658 DOI: 10.1002/cbdv.202300591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 07/28/2023]
Abstract
In this study, we investigated the combined treatment of 5-fluorouracil (5-FU) and Anatolian propolis extract (PE) on colorectal cancer (CRC)using in vitro and in vivo studies. We exposed luciferase-transfected (Lovo-Luc CRC) cells and healthy colon cells (CCD-18Co) to varying concentrations of 5-FU and PE to assess their genotoxic, apoptotic, and cytotoxic effects, as well as their intracellular reactive oxygen species (iROS) levels. We also developed a xenograft model in nude mice and evaluated the anti-tumor effects of PE and 5-FU using various methods. Our findings showed that the combination of PE and 5-FU had selectivity against cancer cells, particularly at higher doses, and enhanced the anti-tumor effectiveness of 5-FU against colon CRC. The results suggest that PE can reduce side effects and increase the effectiveness of 5-FU through iROS generation in a dose-dependent manner.
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Affiliation(s)
- Abdurrahim Kocyigit
- Bezmialem Vakif University Medical Faculty, Department of Medical Biochemistry, 34093, Fatih, Istanbul, Turkey
- Bezmialem Vakif University Traditional and Complementary Medicine Advanced Research Applications and Research Center, Istanbul, Turkey
| | - Eray Metin Guler
- University of Health Sciences Turkey, Hamidiye School of Medicine, Department of Medical Biochemistry, Istanbul, Turkey
| | - Ezgi Durmus
- Bezmialem Vakif University Medical Faculty, Department of Medical Biochemistry, 34093, Fatih, Istanbul, Turkey
- Bezmialem Vakıf University Institute of Health Sciences, Medical Biochemistry, Turkey
| | - Vildan Betul Yenigun
- Bezmialem Vakif University Medical Faculty, Department of Medical Biochemistry, 34093, Fatih, Istanbul, Turkey
| | - Ebru Kanimdan
- Bezmialem Vakif University Medical Faculty, Department of Medical Biochemistry, 34093, Fatih, Istanbul, Turkey
- Istanbul University Institute of Science, Molecular Biology and Genetics, Turkey
| | - Zeynep Ozman
- Bezmialem Vakif University Medical Faculty, Department of Medical Biochemistry, 34093, Fatih, Istanbul, Turkey
- Bezmialem Vakıf University Institute of Health Sciences, Medical Biochemistry, Turkey
| | - Oznur Yasar
- Bezmialem Vakif University Medical Faculty, Department of Medical Biochemistry, 34093, Fatih, Istanbul, Turkey
| | - Ahmet Ceyhan Goren
- Faculty of Pharmacy, Department of Basic Pharmaceutical Sciences, Bezmialem Vakif University, Istanbul, Turkey
| | - Emine Rumeysa Hekimoglu
- Bezmialem Vakif University School of Medicine Department of Histology and Embryology, Istanbul, Turkey
| | - Hasan Huseyin Oruc
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Uludag University, Bursa, Turkey
| | - Gokhan Aydogdu
- Faculty of Veterinary Medicine Uludag University, Bursa, Turkey
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Kutlu E, Ozgen LT, Bulut H, Kocyigit A, Ustunova S, Hüseyinbas O, Torun E, Cesur Y. Investigation of irisin's role in pubertal onset physiology in female rats. Peptides 2023; 163:170976. [PMID: 36796677 DOI: 10.1016/j.peptides.2023.170976] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 01/09/2023] [Accepted: 02/13/2023] [Indexed: 02/16/2023]
Abstract
OBJECTIVE The timing of pubertal development is closely related to metabolic status and energy reserves. It is thought that irisin, which is involved in the regulation of energy metabolism and is shown to be present in the hypothalamo-pituitary-gonadal (HPG) axis, may play a role in this process. In our study, we aimed to investigate the effect of irisin administration on pubertal development and HPG axis in rats. DESIGN-METHODS 36 female rats were included in the study were divided into 3 groups: 100 ng/kg/day irisin treatment group (irisin-100), 50 ng/kg/day irisin treatment group (irisin-50), and control group. On the 38th day, serum samples were taken to determine levels of luteinizing hormone (LH) and follicle stimulating hormone (FSH), estradiol and irisin. Brain hypothalamus samples were taken to determine levels of pulsatile gonadotropin-releasing hormone (GnRH), kisspeptin, neurokinin-B, dynorphin (Dyn), and makorin ring finger protein-3 (MKRN3). RESULTS Vaginal opening and estrus were seen firstly in the irisin-100 group. At the end of the study, the highest rate of vaginal patency was found in the irisin-100 group. Hypothalamic protein expression levels of GnRH, NKB and Kiss1 in homogenates; serum FSH, LH, and estradiol levels were the highest in the irisin-100 group, followed by the irisin-50 and control groups, respectively. Ovarian sizes were significantly greater in the irisin-100 group compared to the other groups. The hypothalamic protein expression levels of MKRN3 and Dyn were the lowest in the irisin-100 group. CONCLUSIONS In this experimental study, irisin triggered the onset of puberty in a dose-dependent manner. Irisin administration caused the excitatory system to dominate in the hypothalamic GnRH pulse generator.
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Affiliation(s)
- Esra Kutlu
- Health Sciences University Istanbul Umraniye Training and Research Hospital, Department of Pediatrics, Division of Pediatric Endocrinology, Umraniye, Istanbul, Turkey.
| | - Lker Tolga Ozgen
- Bezmialem Vakif University, Faculty of Medicine, Department of Pediatrics, Division of Pediatric Endocrinology, Fatih, Istanbul, Turkey
| | - Huri Bulut
- Istinye University, Faculty of Medicine, Department of Biochemistry, Zeytinburnu, Istanbul, Turkey
| | - Abdurrahim Kocyigit
- Bezmialem Vakif University, Faculty of Medicine, Department of Biochemistry, Fatih, Istanbul, Turkey
| | - Savas Ustunova
- Bezmialem Vakif University, Faculty of Medicine, Department of Physiology, Fatih, Istanbul, Turkey
| | - Onder Hüseyinbas
- Bezmialem Vakif University, Faculty of Medicine, Animal Research Laboratory, Fatih, Istanbul, Turkey
| | - Emel Torun
- Bezmialem Vakif University, Faculty of Medicine, Department of Pediatrics, Fatih, Istanbul, Turkey
| | - Yasar Cesur
- Bezmialem Vakif University, Faculty of Medicine, Department of Pediatrics, Division of Pediatric Endocrinology, Fatih, Istanbul, Turkey
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Gunay B, Kaya MS, Ozgen IT, Guler EM, Kocyigit A. Evaluation of the relationship between pain inflammation due to dental caries and growth parameters in preschool children. Clin Oral Investig 2023:10.1007/s00784-023-04988-2. [PMID: 37036512 PMCID: PMC10088690 DOI: 10.1007/s00784-023-04988-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 03/28/2023] [Indexed: 04/11/2023]
Abstract
OBJECTIVES To evaluate the relationship between pain inflammation due to dental caries and growth parameters, sleep disturbances, and oral health-related quality of life (OHRQoL) in preschool children before/after dental treatment and compare the results with the control group. MATERIALS AND METHODS Study (pain inflammation due to caries) and control groups were included in this prospective clinical trial. The Child Sleep Habits Questionnaire (CSHQ) assessing sleep disturbances and the Early Childhood Oral Health Impact Scale (ECOHIS) assessing OHRQoL were applied in the corresponding time intervals to the study and control groups, respectively: baseline (T0study), 7 days after treatment (T1study), and following 6 months (T2study); baseline (T0control), and the following 6 months (T2control). Biochemical growth parameters (insulin-like growth factor-1 and insulin-like growth factor binding protein-3) and anthropometric measurements (standard deviation score of height, weight, and body mass index) were obtained at T0study, T2study, and T0control. Mann-Whitney U and the Student t-tests were used for statistical analyses. The significance level was set at p < 0.05. RESULTS Data on 45 children (mean age: 55.6 ± 10.37 months) were analyzed. T2study was statistically higher than T0study for the anthropometric measurements and biochemical growth parameters (p < 0.05). T0study was statistically higher than T0control for biochemical growth parameters (p < 0.05). CSHQ and ECOHIS scores were found statistically significant at T0study than T0control (p < 0.05). Statistical scores of CSHQ and ECOHIS in T2study were significantly reduced compared to T0study (p < 0.05). CONCLUSION Children's growth parameters, sleep disturbances, and OHRQoL improved after the elimination of pain and inflammation. CLINICAL RELEVANCE This study's novelty is the observation of drastically increased growth parameters and reduced sleep disturbances following dental treatment.
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Affiliation(s)
- Basak Gunay
- Department of Pedodontics, School of Dentistry, Bezmialem Vakif University, 34093, Istanbul, Turkey.
| | - Mustafa Sarp Kaya
- Department of Pedodontics, School of Dentistry, Bezmialem Vakif University, 34093, Istanbul, Turkey
| | - Ilker Tolga Ozgen
- Division of Pediatric Endocrinology, Department of Pediatrics, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Eray Metin Guler
- Department of Medical Biochemistry, Hamidiye School of Medicine, University of Health Sciences Turkey, Istanbul, Turkey
- Department of Medical Biochemistry, Haydarpasa Numune Health Application and Research Center, Hamidiye Faculty of Medicine, University of Health Sciences Turkey, Istanbul, Turkey
| | - Abdurrahim Kocyigit
- Department of Clinical Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
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Cintesun S, Ozman Z, Kocyigit A, Mansuroglu B, Kocacaliskan I. Effects of walnut (Juglans regia L.) kernel extract and juglone on dopamine levels and oxidative stress in rats. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2022.102327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Gungor AS, Durmus E, Kurt BZ, Kocyigit A, Dalkilic E, Arisu HD. Effects of Bioactive Pulp-capping Materials on Cell Viability, Differentiation, and Mineralization Behaviors of Human Dental Pulp Stem Cells In Vitro. Oper Dent 2023:490502. [PMID: 36745519 DOI: 10.2341/22-023-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/10/2022] [Indexed: 02/07/2023]
Abstract
PURPOSE The objective of this study was to assess the effect of bioactive pulp-capping materials on human dental pulp stem cell (hDPSC) behavior in terms of cell viability and bioactivity via mineralization potential. METHODS AND MATERIALS Nanoparticles of 58S5 bioactive glass (nBG) powder were elaborated by a sol-gel process. Primer hDPSCs were cultured with experimental nBG, Biodentine, TheraCal LC, and ProRoot mineral trioxide aggregate (MTA) extracts. Cell viability was measured for 1, 3, and 7 days by water-soluble tetrazolium salts (WST-1) assay. Expression of mineralization-related marker genes (dentin sialophosphoprotein [DSPP] and osteocalcin [OCN]) was quantified by a real-time polymerase chain reaction. Detection of DSPP protein expression in hDPSCs was also assessed by western blotting. Alizarin red staining was used to detect the formation of mineralized nodules, and alkaline phosphatase (ALP) activity was quantified by a photometric method (days 7 and 14). All data were statistically analyzed with a one-way analysis of variance (ANOVA) and Tukey's post-hoc test (p<0.05). RESULTS The cell viability of hDPSCs in all groups decreased except for nBG, and the lowest cell viability was determined in TheraCal LC at all incubation times. nBG and MTA showed significantly higher ALP activity than the control group. The tested materials elevated the calcium nodule form of hDPSCs except for TheraCal LC. The highest DSPP expression was seen in nBG for both incubation times. CONCLUSION nBG promotes differentiation and mineralization of hDPSCs at a higher rate than other bioactive pulp-capping materials tested.
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Affiliation(s)
- A S Gungor
- *Ayca Sarialioglu Gungor, Department of Restorative Dentistry, Faculty of Dentistry, Bezmialem Vakif University, Istanbul, Turkey
| | - E Durmus
- Ezgi Durmus, Department of Medical Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - B Z Kurt
- Belma Zengin Kurt, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Bezmialem Vakif University, Istanbul, Turkey
| | - A Kocyigit
- Abdurrahim Kocyigit, Department of Medical Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - E Dalkilic
- Evrim Dalkilic, Department of Restorative Dentistry, Faculty of Dentistry, Bezmialem Vakif University, Istanbul, Turkey
| | - H D Arisu
- Hacer Deniz Arisu, Department of Restorative Dentistry, Faculty of Dentistry, Gazi University, Ankara, Turkey
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Yenigun VB, Acar H, Kanimdan E, Yenigun A, Kocyigit A, Cora T. KRAS Mutation Reduces Thymoquinone Anticancer Effects on Viability of Cells and Apoptosis. Anticancer Agents Med Chem 2023; 23:1747-1753. [PMID: 37194932 DOI: 10.2174/1871520623666230517123807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 03/04/2023] [Accepted: 03/15/2023] [Indexed: 05/18/2023]
Abstract
BACKGROUND Cancer is a life-threatening condition with an economic burden on societies. Phytotherapy is rapidly taking place in cancer research to increase the success of treatment and quality of life. Thymoquinone (TQ) is the main active phenolic compound obtained from the essential oil of the Nigella sativa (black cumin) plant seed. For a long time, black cumin has been used traditionally for the remedy of different diseases because of its various biological effects. It has been shown that most of these effects of black cumin seeds are due to TQ. TQ became a popular research topic for phytotherapy studies for its potential therapeutic applications, and more research is going on to fully understand its mechanisms of action, safety, and efficacy in humans. KRAS is a gene that regulates cell division and growth. Monoallelic variants in KRAS result in uncontrollable cell division, leading to cancer development. Studies have shown that cancer cells with KRAS mutations are often resistant to certain types of chemotherapy and targeted therapies. OBJECTIVE This study aimed to compare the effect of TQ on cancer cells with and without KRAS mutation to better understand the reason why TQ may have different anticancer effects in the different types of cancer cells. METHODS TQ was investigated for its cytotoxic and apoptotic effects in laryngeal cancer cells (HEp-2) without KRAS mutation and compared to mutant KRAS-transfected larynx cancer cells and KRAS mutation-carrying lung cancer cells (A549). RESULTS We showed that TQ has more cytotoxic and apoptotic effects on laryngeal cancer cells without KRAS mutation than in cells with mutation. CONCLUSION KRAS mutations decrease the effect of TQ on cell viability and apoptosis, and further studies are needed to fully understand the relationship between KRAS mutations and thymoquinone effectiveness in cancer treatment.
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Affiliation(s)
- Vildan Betul Yenigun
- Department of Medical Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
- Health Services Vocational School, Bezmialem Vakif University, Istanbul, Turkey
| | - Hasan Acar
- Department of Medical Genetics, University of Health Sciences, Konya City Research and Application Center, Konya, Turkey
| | - Ebru Kanimdan
- Department of Medical Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
- Health Services Vocational School, Bezmialem Vakif University, Istanbul, Turkey
| | - Alper Yenigun
- Department of Otorhinolaryngology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Abdurrahim Kocyigit
- Department of Medical Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Tulin Cora
- Department of Medical Genetics, Faculty of Medicine, Selcuk University, Konya, Turkey
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Cakir A, Bozali K, Celikten M, Guler EM, Sahan E, Durdu B, Sumbul B, Kocyigit A. Examination of antimicrobial effect of fluoxetine in experimental sepsis model: An in vivo study. J Biochem Mol Toxicol 2023; 37:e23240. [PMID: 36214215 DOI: 10.1002/jbt.23240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 08/03/2022] [Accepted: 09/22/2022] [Indexed: 01/18/2023]
Abstract
Since most infectious diseases can develop into sepsis, it is still a major medical problem. Some in-vivo studies showed promising properties of fluoxetine in the treatment of infections. This study aims the antimicrobial effect of fluoxetine on the inflammatory process used in the treatment of sepsis-modeled rats. Besides, to investigate the efficacy of fluoxetine on modifying the antibiotic effect of imipenem in the inflammatory response. An experimental sepsis model was divided into negative control, positive control, fluoxetine 5 mg/kg, imipenem 60 mg/kg, and combined (fluoxetine; imipenem). Procalcitonin (PCT), high-sensitivity C-reactive protein (hs-CRP), lactate, myeloperoxidase activity (MPO), the inflammation markers interleukin-1β (IL-1β), interleukin-6 (IL-6), tumor necrosis factor-alfa (TNF-α), and monocyte chemoattractant protein-1 (MCP-1) levels were measured by enzyme-linked immunosorbent assay method. Oxidative stress markers, total oxidant status (TOS), total antioxidant status (TAS), total thiol (TT), and native thiol (NT) were measured using photometric methods. Oxidative stress index (OSI) was calculated according to TAS and TOS levels. The statistical analysis was performed by Statistical Package for Social Sciences version 22.0. After treatment with fluoxetine, imipenem, and combined groups, IL-1β, IL-6, TNF-α, MPO activity, MCP-1, hs-CRP, PCT, lactate, and the oxidative stress markers OSI, and disulfide levels were decreased (p < 0.05). The TT, NT, and TAS levels significantly statistically increased (p < 0.05). This research demonstrates that fluoxetine has effects as anti-inflammatory and antioxidant, and the combined treatment with antibioticum imipenem indicates positive synergistic effects in the experimental sepsis model.
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Affiliation(s)
- Ahsen Cakir
- Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Kubra Bozali
- Faculty Life Sciences and Environmental Technology, Avans University of Applied Science, Breda, The Netherlands.,Department of Medical Biochemistry, Faculty of Hamidiye Medicine, University of Health Sciences Turkey, Istanbul, Turkey
| | - Mert Celikten
- Department of Scientific Research Projects, Experimental Application and Research Center, Bezmialem Vakif University, Istanbul, Turkey.,Department of Anatomy, Medipol Institute of Health Sciences, Istanbul, Turkey
| | - Eray Metin Guler
- Department of Medical Biochemistry, Faculty of Hamidiye Medicine, University of Health Sciences Turkey, Istanbul, Turkey.,Department of Medical Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Ebru Sahan
- Department of Psychiatry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Bulent Durdu
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Bilge Sumbul
- Department of Medical Microbiology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Abdurrahim Kocyigit
- Department of Medical Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
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Kocyigit A, Guler EM, Irban A, Kiran B, Atayoglu AT. Assessment of Association Between the Potential Immunomodulatory Activity and Drinking Olive Leaf Tea in the Coronavirus Disease-2019 Pandemic: An Observational Study. J Integr Complement Med 2022; 28:940-947. [PMID: 36112183 DOI: 10.1089/jicm.2022.0554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Objective: During the Coronavirus Disease-2019 (COVID-19) pandemic, in addition to the current measures, the healthy immune system plays an essential role and various natural agents have been recommended to boost innate immunity. The aim of this study was to investigate any association between the potential immunomodulatory activity and drinking olive leaf tea (OLT) in the COVID-19 pandemic. Design: The study was conducted among the workers in a tractor factory where OLT was served in routine. Drinking at least one cup of OLT per day for a minimum of 1 month was the inclusion criteria used in the study. The workers who had a history of vaccination and COVID-19 were excluded from the study, and lymphocyte subsets, interleukin (IL)-2, IFN-γ, COVID-19-specific IgM and IgG levels were analyzed in all the participants to determine the asymptomatic individuals among the participants and compare the immunological parameters. Results: The study was conducted among 336 workers, 183 of them were OLT drinkers and 153 were OLT nondrinkers. The results showed higher values of CD3-/CD16/56 (natural killer [NK]) cells, CD3+/CD16/56 (natural killer T [NKT]) cells, total NK (NK+NKT) cells, and serum IFN-γ, and IL-2 levels in OLT drinkers compared to the nondrinkers. Although all the OLT drinkers and nondrinkers included in the study reported no history of COVID-19, specific COVID-19 IgG levels were found positive in 60% of OLT drinkers and 38% OLT nondrinkers. Conclusions: Peripheral NK and NKT cell values and IL-2 and IFN-γ secretion levels were found higher in the OLT drinking group. There were positive correlations between the OLT drinking frequency and NK cell counts. Moreover, the number of individuals who had "asymptomatic" COVID-19 infection was higher in the OLT drinking group than in the nondrinking cohort. Clinical Trial Registration Number: The trial has been registered in the ClinicalTrials.gov database (CTR NCT05222347).
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Affiliation(s)
- Abdurrahim Kocyigit
- Department of Biochemistry, Faculty of Medicine, Bezmialem Vakıf University, Istanbul, Turkey
| | - Eray Metin Guler
- Department of Clinical Biochemistry and Hamidiye Medicine Faculty, Health Sciences University, Istanbul, Turkey
| | - Arzu Irban
- Department of Anestesia and Reanimation, Hamidiye Medicine Faculty, Health Sciences University, Istanbul, Turkey
| | - Bayram Kiran
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Kastamonu University, Kastamonu, Turkey
| | - Ali Timucin Atayoglu
- Department of Family Medicine, International School of Medicine, Istanbul Medipol University, Istanbul, Turkey
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Yilmaz A, Uckaya F, Bayindir N, Guler EM, Toprak A, Kocyigit A, Esrefoglu M, Topcu G. Comparing healing effect against ulcerative colitis and toxicological effects of Rosmarinus officinalis: A comprehensive in vivo study of an edible plant in rats. J Food Biochem 2022; 46:e14299. [PMID: 35778816 DOI: 10.1111/jfbc.14299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 05/16/2022] [Accepted: 06/13/2022] [Indexed: 12/29/2022]
Abstract
Ulcerative colitis (UC) is a chronic and inflammatory disorder of the gastrointestinal (GI) tract. UC usually worsens the daily life of the patient and may sometimes become mortal. There is no known remedy discovered against UC, yet. Rosmarinus officinalis consists of many flavonoids, phenolics, and terpenoids possessing various biological activities such as anti-inflammatory. For this reason, in the present study, anti-ulcerative colitis effect of ROME (Rosmarinus officinalis methanol extract) was investigated comprehensively by histopathological studies, a number of in vivo anti-inflammatory activities and several in vivo antioxidant activities, in addition to in vitro antioxidant activities and biochemical analyses. In addition, the toxic effects of ROME were examined. The results showed that ROME provided a significant healing effect against ulcerative colitis in rats. Both in vitro and in vivo assay results correlated with histopathological examinations. ROME exhibited minimal toxic alterations. When the results of rosemary are compared with the results of sulfasalazine, it can be suggested that instead of synthetic drugs with side effects, natural sources can be used for the treatment of various diseases. Although some activities of rosemary have been investigated in vitro in the previous studies, this is the first study revealing anti-ulcerative colitis effect of rosemary through histopathological studies, in vivo and in vitro assays as well as biochemical analyses overall. PRACTICAL APPLICATIONS: The results revealed and proved that ROME provided a significant healing effect against ulcerative colitis in rats. When the results of rosemary are compared with the results of sulfasalazine, a commercially available drug on the market, it can be suggested that instead of synthetic drugs with side effects, natural sources can be used for the treatment of various inflammatory diseases such as UC disease. In addition, ROME possesses limited toxic alterations, but not much more than the commercial drug. As a future perspective, lethal and therapeutic doses can be examined and determined. Thus, human studies can be started through this comprehensive in vivo study on rosemary which is commonly used as an edible plant and spice all over the world.
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Affiliation(s)
- Anil Yilmaz
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Trakya University, Edirne, Turkey.,Department of Pharmacognosy, Faculty of Pharmacy, Bezmialem Vakif University, Istanbul, Turkey
| | - Fatih Uckaya
- Department of Biochemistry, Faculty of Pharmacy, Bezmialem Vakif University, Istanbul, Turkey.,Department of Fundamentals of Nursing, Faculty of Health Sciences, Alanya Alaaddin Keykubat University, Antalya, Turkey
| | - Nihan Bayindir
- Department of Histology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Eray Metin Guler
- Department of Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Ali Toprak
- Department of Biostatistics, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Abdurrahim Kocyigit
- Department of Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Mukaddes Esrefoglu
- Department of Histology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Gulacti Topcu
- Department of Pharmacognosy, Faculty of Pharmacy, Bezmialem Vakif University, Istanbul, Turkey
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Koyuncu I, Temiz E, Durgun M, Kocyigit A, Yuksekdag O, Supuran CT. Intracellular pH-mediated induction of apoptosis in HeLa cells by a sulfonamide carbonic anhydrase inhibitor. Int J Biol Macromol 2022; 201:37-46. [PMID: 34999037 DOI: 10.1016/j.ijbiomac.2021.12.190] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 12/16/2021] [Accepted: 12/30/2021] [Indexed: 01/26/2023]
Abstract
Carbonic anhydrase IX (CAIX) is a hypoxia-associated transmembrane protein that is critical in the survival of cells. Because CAIX has a key role in pH regulation, its therapeutic effects have been heavily studied by different research laboratories. This study aims to investigate how a synthetic CAIX inhibitor triggers apoptosis in a cancer cell line, HeLa. In this regard, we investigated the effects of the compound I, synthesized as a CAIX inhibitor, on the survival of cancer cells. The compound I inhibited the proliferation of the CAIX+ HeLa cells, kept the cells in G0/G1 phase (74.7%) and altered the cells morphologies (AO/EtBr staining) and the nuclear structure (γ-H2AX staining). CAIX inhibition triggered apoptosis in HeLa cells with a rate of 47.4%. According to the expression of mediator genes (CASP-3, -8, -9, BAX, BCL-2, BECLIN, LC3), the both death pathways were activated in HeLa cells with the inhibition of CAIX with the compound I. The compound I was also determined to affect the genes and proteins that have a critical role in the regulation of apoptotic pathways (pro casp-3, cleaved casp-3, -8, -9, cleaved PARP and CAIX). Furthermore, CAIX inhibition caused changes in pH balance, disruption in organelle integrity of mitochondria, and increase intracellular reactive oxygen level of HeLa cells. Taken together, our findings suggest that CAIX inhibition has a potential in cancer treatment, and the compound I, a CAIX inhibitor, could be a promising therapeutic strategy in the treatment of aggressive tumours.
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Affiliation(s)
- Ismail Koyuncu
- Department of Medical Biochemistry, Faculty of Medicine, Harran University, Sanliurfa 63290, Turkey.
| | - Ebru Temiz
- Program of Medical Promo and Marketing, Health Services Vocational School, Harran University, Sanliurfa 63300, Turkey
| | - Mustafa Durgun
- Department of Chemistry, Faculty of Arts and Sciences, Harran University, Sanliurfa 63290, Turkey.
| | - Abdurrahim Kocyigit
- Department of Medical Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Istanbul 34093, Turkey.
| | - Ozgur Yuksekdag
- Department of Medical Biochemistry, Faculty of Medicine, Harran University, Sanliurfa 63290, Turkey
| | - Claudiu T Supuran
- NEUROFARBA Department, Section of Pharmaceutical and Nutraceutical Sciences, Università degli Studi di Firenze, Sesto Fiorentino, Florence 50019, Italy.
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Kocyigit A, Yıldırım M, Kose DA, Yıldız DE. Synthesize and characterization of Co-complex as interlayer for Schottky type photodiode. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-021-04021-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Kocyigit A, Aydogdu G, Balkan E, Yenigun VB, Guler EM, Bulut H, Koktasoglu F, Gören AC, Atayoglu AT. The Acorn Honey Used for a Published Study was Mistakenly Listed as Quercus pyrenaica and Should Be Corrected to Quercus species. Integr Cancer Ther 2022; 21:15347354221110818. [PMID: 35912548 PMCID: PMC9421218 DOI: 10.1177/15347354221110818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Affiliation(s)
- Abdurrahim Kocyigit
- Bezmialem Vakif University, Istanbul, Turkey.,Advanced Research and Application Center of Traditional and Complementary Medicine, Istanbul, Turkey
| | | | - Ezgi Balkan
- Bezmialem Vakif University, Istanbul, Turkey
| | | | | | - Huri Bulut
- Bezmialem Vakif University, Istanbul, Turkey
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16
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Kilicarslan T, Sahan E, Kirik F, Guler EM, Kurtulmus A, Yildiz FBP, Ozdemir MH, Kocyigit A, Kirpinar I. The relation of optical coherence tomography findings with oxidative stress parameters in patients with bipolar disorder and unaffected first-degree relatives. J Affect Disord 2022; 296:283-290. [PMID: 34628249 DOI: 10.1016/j.jad.2021.09.065] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/12/2021] [Accepted: 09/21/2021] [Indexed: 01/09/2023]
Abstract
BACKGROUND We aimed to evaluate the optical coherence tomography(OCT) findings and oxidative stress parameters in patients with bipolar disorder(BD) and their unaffected first-degree relatives(FDRs) and to explore OCT findings and oxidative stress parameters as potential endophenotype candidates. METHODS Fifty patients with BD, 40 FDRs of BD, and 50 healthy controls(HCs) were included. OCT was performed to measure peripapillary retinal nerve fiber layer(RNFL), ganglion cell layer(GCL), inner plexiform layer(IPL), central macular, and minimum foveal thicknesses(CMT and MFT), choroidal thickness(ChT). 4-hydroxy-2-nonenal(HNE), total thiol(TT), native thiol(NT), total oxidant status(TOS), total antioxidant status(TAS), disulfide(DIS) and oxidative stress index(OSI) were measured from serum samples. RESULTS TOS was higher patients with BD and FDRs than HCs (p < .001 and p = .012, respectively). OSI, DIS, HNE levels were higher patients with BD and FDRs than HCs (p < .001). TAS, TT, NT levels were lower patients and FDRs than HCs (p < .001). MFT of patients was thinner than HCs (p = .001). CMT of patients was thinner than HCs (p = .006); the same trend was observed in FDRs but did not reach the statistical significance level (p = .07). The groups did not differ on RNFL and choroidal thickness or GCL and IPL volume. LIMITATIONS Evaluation of only a few retinal layers. CONCLUSIONS TOS, TAS, OSI, TT, NT, DIS, HNE can be useful endophenotype biomarkers in BD. Among the OCT findings, CMT was determined as the closest parameter to being an endophenotype biomarker. Our study corroborates that oxidative stress parameters are more effective than OCT findings in endophenotype studies.
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Affiliation(s)
- Tezer Kilicarslan
- Department of Psychiatry, Igdir State Hospital, Igdir, Turkey; Faculty of Medicine, Department of Psychiatry, Bezmialem Vakif University, Istanbul, Turkey.
| | - Ebru Sahan
- Faculty of Medicine, Department of Psychiatry, Marmara University, Istanbul, Turkey
| | - Furkan Kirik
- Faculty of Medicine, Department of Ophthalmology, Bezmialem Vakif University, Istanbul, Turkey
| | - Eray Metin Guler
- Hamidiye Faculty of Medicine, Haydarpaşa Numune Health Application and Research Center, Department of Medical Biochemistry, University of Health Sciences Turkey, Istanbul, Turkey
| | - Ayse Kurtulmus
- Goztepe Training and Research Hospital, Istanbul Medeniyet University, Istanbul, Turkey
| | | | - Mehmet Hakan Ozdemir
- Faculty of Medicine, Department of Ophthalmology, Bezmialem Vakif University, Istanbul, Turkey
| | - Abdurrahim Kocyigit
- Faculty of Medicine, Department of Medical Biochemistry, Bezmialem Vakif University, Istanbul, Turkey
| | - Ismet Kirpinar
- Faculty of Medicine, Department of Psychiatry, Bezmialem Vakif University, Istanbul, Turkey
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Aydogdu I, Karaca E, Coban G, Cay A, Guler EM, Kocyigit A, Uzun E, Aydoğdu YE, Metin H, Miçooğullari U, Ilbey YO, Keskin MZ. An investigation of the effects of amniotic fluid on experimental ischemia/reperfusion damage in rat testes. J Pediatr Urol 2021; 17:761.e1-761.e6. [PMID: 34518124 DOI: 10.1016/j.jpurol.2021.08.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 07/18/2021] [Accepted: 08/06/2021] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Various agents have been tested as preventive treatments for ischemia/reperfusion (IR) damage. In this study, we have investigated for the first time in the literature the efficacy of injection of amniomax (AMX) into testicular parenchyma, which is a commercial medium of rat amniotic fluid, in preventing testicular IR damage related to testicular torsion. OBJECTIVE This study aims to evaluate whether or not amniomax has an effect on experimental IR damage in rat testes using biochemical and histopathological methods based on data in the literature. Even if testicular torsion is repaired surgically in early term injury because of de IR damage still occurs. Is it possible to reduce the ischemia reperfusion injury with amniotic fluid and increase the success of treatment? STUDY DESIGN 40 male Wistar albino rats were included. Four groups were formed with 10 rats in each group: Sham, Ischemia/Reperfusion (IR), injection 1 min before detorsion (AMX-BD), injection 1 min after detorsion (AMX-AD). Total Oxidant Status (TOS) and Oxidative Stress Index (OSI) were computed for oxidative stress, and Total Antioxidant Status (TAS) levels were computed for the antioxidant system, for both serum and tissue. Necrosis and microcalcification levels were assessed in the evaluation of testicular histology. P < 0.05 was considered statistically significant. RESULTS AMX-AD group has low necrosis degree than IR, Mean serum and tissue levels of TAS, TOS, and OSI parameters were respectively determined as; for TAS: 0.64 ± 0.11 and 0.96 ± 0.25 mmol Trolox Equivalent/L; for TOS: 6.71 ± 0.87 and 9.40 ± 1.03 μmol H2O2 equivalent/L; for OSI: 11.94 ± 3.74 and 10.70 ± 4.23 arbitrary unit. DISCUSSION Our study has investigated for the first time in the literature the efficacy of amniotic fluid in preventing testicular IR damage, and used amniomax (AMX) for this purpose. The limitation of our study may be the small number of rat in the groups. CONCLUSION We think an injection after detorsion is more favorable considering that the AMX-AD group demonstrated significantly lower levels of TOS in serum and tissue and OSI in serum, and significantly higher serum levels of TAS compared to the AMX-BD group, as well as the fact that the morphological protection effect was only observed for injections performed immediately after detorsion.
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Affiliation(s)
- Ibrahim Aydogdu
- Bezmialem Vakif University, School of Medicine, Department of Pediatric Surgery, Istanbul, Turkey.
| | - Erkin Karaca
- Izmir Saglik Bilimleri University, Tepecik Training and Research Hospital, Department of Urology, Izmir, Turkey.
| | - Ganime Coban
- Bezmialem Vakif University, School of Medicine, Department of Pathology, Istanbul, Turkey.
| | - Ali Cay
- Bezmialem Vakif University, School of Medicine, Department of Pediatric Surgery, Istanbul, Turkey.
| | - Eray Metin Guler
- Bezmialem Vakif University, Medical Laboratory Techniques Program, Istanbul, Turkey.
| | - Abdurrahim Kocyigit
- Bezmialem Vakif University, School of Medicine, Department of Biochemistry, Istanbul, Turkey.
| | - Ersan Uzun
- Istanbul Medeniyet University, School of Medicine, Department of Pediatric Surgery, Istanbul, Turkey.
| | | | - Hüseyin Metin
- Bezmialem Vakif University, Scgool of Medicine, Emergency Medicine, Istanbul, Turkey.
| | - Uygar Miçooğullari
- Izmir Saglik Bilimleri University, Tepecik Training and Research Hospital, Department of Urology, Izmir, Turkey.
| | - Yusuf Ozlem Ilbey
- Izmir Saglik Bilimleri University, Tepecik Training and Research Hospital, Department of Urology, Izmir, Turkey.
| | - Mehmet Zeynel Keskin
- Izmir Saglik Bilimleri University, Tepecik Training and Research Hospital, Department of Urology, Izmir, Turkey.
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18
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Guler EM, Kurtulmus A, Gul AZ, Kocyigit A, Kirpinar I. Oxidative stress and schizophrenia: A comparative cross-sectional study of multiple oxidative markers in patients and their first-degree relatives. Int J Clin Pract 2021; 75:e14711. [PMID: 34370389 DOI: 10.1111/ijcp.14711] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 08/06/2021] [Indexed: 01/03/2023] Open
Abstract
OBJECTIVE Schizophrenia (SCZ) is a chronic, disruptive mental disorder with unknown pathogenic mechanisms. Several studies evidenced that oxidative stress (OS) may be one of the causal factors to play a role in the pathophysiology of the disease. Our study aims to contribute to the SCZ research by investigating a possible relationship between the severity of illness (scored with "The Positive and Negative Syndrome Scale [PANSS]") and OS biomarkers in patients. We additionally assess the "first-degree-relatives (FDRs)" oxidative status with multiple parameters to test the idea of oxidative imbalance leads to disease progression as a genetical susceptibility factor. METHODS This study included: 50 adult patients with SCZ, 50 unaffected FDRs, and 50 controls. OS biomarkers included myeloperoxidase (MPO), total oxidant status (TOS), total antioxidant status (TAS), total thiol (TT), native thiol (NT). Photometric methods were used to measure the parameters in the peripheral blood samples of participants. Disulphide (DS) and oxidative stress index (OSI) parameters were calculated. RESULTS TOS, DS, OSI levels were significantly higher, and TAS, TT, NT levels were significantly lower in both SCZ and FDRs than controls. In the SCZ group, MPO activity was significantly higher compared with other groups. Results in this study did not provide a strong correlation between the PANSS and selected biomarkers. There was a slightly negative correlation between TT and PANSS in the SCZ group (P = .041, r = -.297). CONCLUSION OS biomarkers increased significantly in the peripheral blood of SCZ patients compared with other groups indicates the presence of OS in the aetiology of the disease. Mid-levels of oxidative markers found in FDRs imply that unaffected first-degree relatives have an increased risk for turning up to the clinical presentation stage.
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Affiliation(s)
- Eray Metin Guler
- Department of Medical Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
- Department of Medical Biochemistry, Hamidiye School of Medicine, University of Health Sciences Turkey, Istanbul, Turkey
- Department of Medical Biochemistry, Haydarpasa Numune Health Application and Research Center, University of Health Sciences Turkey, Istanbul, Turkey
| | - Ayse Kurtulmus
- Department of Psychiatry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
- Department of Psychiatry, Istanbul Medeniyet University Goztepe Education Research Hospital, Istanbul, Turkey
| | - Ayse Zehra Gul
- Department of Medical Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Abdurrahim Kocyigit
- Department of Medical Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Ismet Kirpinar
- Department of Psychiatry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
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Aslan T, Guler EM, Cakir A, Dundar T, Gulgec AS, Huseyinbas O, Celikten M, Coban G, Hakyemez IN, Kocyigit A, Durdu B. Dexpanthenol and ascorbic acid ameliorate colistin-induced nephrotoxicity in rats. Eur Rev Med Pharmacol Sci 2021; 25:1016-1023. [PMID: 33577057 DOI: 10.26355/eurrev_202101_24671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Colistin is a potent antibiotic which is mainly preferred in the treatment of multidrug-resistant (MDR) gram-negative bacilli. However, due to the increased risk of acute kidney injury following its use, the clinical application is limited. This nephrotoxicity is known to be induced by oxidative stress and related inflammation. In this study on rats, potent antioxidants Dexpanthenol (DEX) and Ascorbic acid (Vit C) have been administered in combination with Colistin to find out whether they would weaken Colistin's nephrotoxic effects. MATERIALS AND METHODS Inflammation biomarkers were studied with enzyme-linked immunosorbent assay (ELISA) kits, and oxidative stress biomarkers were studied with different photometric methods in blood and tissue samples taken after treatment with DEX and Vit C in rats with colistin nephrotoxicity. In addition, inflammation and necrosis in the kidney tissues were examined pathologically. RESULTS It has been observed in the serum and tissue samples that DEX and Vit C decrease oxidative stress and inflammation biomarkers, therefore acting as nephroprotective agents. CONCLUSIONS These compounds have been found to ameliorate the nephrotoxic effects of Colistin, which were demonstrated in the rats treated with Colistin, as well as the combinations.
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Affiliation(s)
- T Aslan
- Bezmialem Vakif University Faculty of Medicine Department of Infectious Diseases and Clinical Microbiology, Istanbul, Turkey.
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Akkoyunlu Y, Kocyigit A, Okay G, Guler EM, Aslan T. Integrase inhibitor-based antiretroviral treatments decrease oxidative stress caused by HIV infection. Eur Rev Med Pharmacol Sci 2021; 24:12389-12394. [PMID: 33336759 DOI: 10.26355/eurrev_202012_24033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Several chronic illnesses, including HIV infection are associated with oxidative stress. In addition to HIV itself, some antiretrovirals also increase oxidative stress while decreasing viral replication. To investigate the alterations in oxidative stress parameters and thiol-disulphide homeostasis in people living with HIV who were receiving integrase inhibitor-based antiretroviral therapy. PATIENTS AND METHODS Thirty treatment-naive adult people living with HIV were prospectively enrolled in the study. Sera were collected from patients twice: at the beginning of antiretroviral therapy (group 1) and 6 months later (group 2). Thirty age-matched healthy volunteers were enrolled in the study as the control group (group 3). Serum levels of total antioxidant status (TAS) and total oxidative status (TOS) were determined using an automated measurement method. Serum malondialdehyde (MDA) and protein carbonyl (PC) levels were measured spectrophotometrically. CD4+ T-cells were counted flow cytometrically. A mathematical equation was used to calculate the oxidative stress index (OSI) and determine disulfide levels (DIS). RESULTS TOS, OSI, MDA, and PC levels were significantly increased in treatment-naive people living with HIV than in those receiving ART (p<0.001). Total and native thiol were significantly lower in both HIV-infected groups than in the control group (p<0.001). PC and MDA levels were significantly higher in both HIV-infected groups than in the control group (p<0.001). In correlation analysis, MDA and age were negatively correlated, whereas TAS was positively correlated with CD4+ T-cell count in treatment-naive people living with HIV. Age was positively correlated with TOS (r:0.421, p:0.023) in healthy controls. CONCLUSIONS Integrase inhibitor-based antiretroviral treatments decrease the oxidative stress caused by HIV infection and may be a good therapeutic option in people living with HIV.
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Affiliation(s)
- Y Akkoyunlu
- Department of Infectious Diseases and Clinical Microbiology, Bezmialem Vakif University, Istanbul, Turkey.
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Temiz E, Koyuncu I, Durgun M, Caglayan M, Gonel A, Güler EM, Kocyigit A, Supuran CT. Inhibition of Carbonic Anhydrase IX Promotes Apoptosis through Intracellular pH Level Alterations in Cervical Cancer Cells. Int J Mol Sci 2021; 22:6098. [PMID: 34198834 PMCID: PMC8201173 DOI: 10.3390/ijms22116098] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 05/29/2021] [Accepted: 06/03/2021] [Indexed: 02/07/2023] Open
Abstract
Carbonic anhydrase IX (CAIX) is a hypoxia-related protein that plays a role in proliferation in solid tumours. However, how CAIX increases proliferation and metastasis in solid tumours is unclear. The objective of this study was to investigate how a synthetic CAIX inhibitor triggers apoptosis in the HeLa cell line. The intracellular effects of CAIX inhibition were determined with AO/EB, AnnexinV-PI, and γ-H2AX staining; measurements of intracellular pH (pHi), reactive oxygen species (ROS), and mitochondrial membrane potential (MMP); and analyses of cell cycle, apoptotic, and autophagic modulator gene expression (Bax, Bcl-2, caspase-3, caspase-8, caspase-9, caspase-12, Beclin, and LC3), caspase protein level (pro-caspase 3 and cleaved caspase-3, -8, -9), cleaved PARP activation, and CAIX protein level. Sulphonamide CAIX inhibitor E showed the lowest IC50 and the highest selectivity index in CAIX-positive HeLa cells. CAIX inhibition changed the morphology of HeLa cells and increased the ratio of apoptotic cells, dramatically disturbing the homeostasis of intracellular pHi, MMP and ROS levels. All these phenomena consequent to CA IX inhibition triggered apoptosis and autophagy in HeLa cells. Taken together, these results further endorse the previous findings that CAIX inhibitors represent an important therapeutic strategy, which is worth pursuing in different cancer types, considering that presently only one sulphonamide inhibitor, SLC-0111, has arrived in Phase Ib/II clinical trials as an antitumour/antimetastatic drug.
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Affiliation(s)
- Ebru Temiz
- Program of Medical Promotion and Marketing, Health Services Vocational School, Harran University, Sanliurfa 63300, Turkey
| | - Ismail Koyuncu
- Department of Medical Biochemistry, Faculty of Medicine, Harran University, Sanliurfa 63290, Turkey; (I.K.); (A.G.)
| | - Mustafa Durgun
- Department of Chemistry, Faculty of Arts and Sciences, Harran University, Sanliurfa 63290, Turkey
| | - Murat Caglayan
- Department of Medical Biochemistry, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara 06110, Turkey;
| | - Ataman Gonel
- Department of Medical Biochemistry, Faculty of Medicine, Harran University, Sanliurfa 63290, Turkey; (I.K.); (A.G.)
| | - Eray Metin Güler
- Department of Medical Biochemistry, Faculty of Hamidiye Medicine, University of Health Sciences Turkey, Istanbul 34668, Turkey;
| | - Abdurrahim Kocyigit
- Department of Medical Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Istanbul 34093, Turkey;
| | - Claudiu T. Supuran
- NEUROFARBA Department, Section of Pharmaceutical and Nutriceutical Sciences, Università degli Studi di Firenze, Sesto Fiorentino, 50019 Florence, Italy
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22
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Kocyigit A, Sogut O, Durmus E, Kanimdan E, Guler EM, Kaplan O, Yenigun VB, Eren C, Ozman Z, Yasar O. Circulating furin, IL-6, and presepsin levels and disease severity in SARS-CoV-2-infected patients. Sci Prog 2021; 104:368504211026119. [PMID: 34187224 PMCID: PMC10305811 DOI: 10.1177/00368504211026119] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Coronavirus disease 2019 (COVID-19) is an infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has resulted in a vast number of infections and deaths that deeply affect the world. When the virus encounters the host cell, it binds to angiotensin-converting enzyme 2, then the S protein of the virus is broken down by the transmembrane protease serine 2 with the help of furin, allowing the virus to enter the cell. The elevated inflammatory cytokines suggest that a cytokine storm, also known as cytokine release syndrome, may play a major role in the pathology of COVID-19. Therefore, the aim of this study is to investigate the relationship between circulating furin levels, disease severity, and inflammation in patients with SARS-CoV-2. A total of 52 SARS-CoV-2 patients and 36 healthy control participants were included in this study. SARS- CoV-2 patients were scored by the disease activity score. Serum furin, presepsin, and interleukin-6 (IL-6) levels were assessed using an enzyme-linked immunosorbent assay. The mean furin, presepsin, and IL-6 levels were significantly higher in the peripheral blood of SARS-CoV-2 compared to the controls (p < 0.001). There were close positive relationship between serum furin and IL-6, furin and presepsin, and furin and disease severity (r = 0.793, p < 0001; r = 0.521, p < 0.001; and r = 0,533, p < 0.001, respectively) in patients with SARS-CoV-2. These results suggest that furin may contribute to the exacerbation of SARS-CoV-2 infection and increased inflammation, and could be used as a predictor of disease severity in COVID-19 patients.
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Affiliation(s)
- Abdurrahim Kocyigit
- Department of Medical Biochemistry,
Bezmialem Vakif University, Istanbul, Turkey
| | - Ozgur Sogut
- Department of Emergency Medicine,
Health Science University, Haseki Training and Research Hospital, Istanbul,
Turkey
| | - Ezgi Durmus
- Department of Medical Biochemistry,
Bezmialem Vakif University, Istanbul, Turkey
| | - Ebru Kanimdan
- Department of Medical Biochemistry,
Bezmialem Vakif University, Istanbul, Turkey
| | - Eray Metin Guler
- Department of Medical Biochemistry,
Bezmialem Vakif University, Istanbul, Turkey
| | - Onur Kaplan
- Department of Emergency Medicine,
Health Science University, Haseki Training and Research Hospital, Istanbul,
Turkey
| | - Vildan Betul Yenigun
- Department of Medical Biochemistry,
Bezmialem Vakif University, Istanbul, Turkey
| | - Canan Eren
- Marmara University Pendik Training and
Research Hospital, Medical Microbiology and Blood Centre, Pendik, Istanbul
| | - Zeynep Ozman
- Department of Medical Biochemistry,
Bezmialem Vakif University, Istanbul, Turkey
| | - Oznur Yasar
- Department of Medical Biochemistry,
Bezmialem Vakif University, Istanbul, Turkey
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23
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Dogan R, Guler EM, Kocyigit A, Çelik İ, Senturk E, Yenigun A, Tugrul S, Ozturan O. Are the oxidative stress levels in the tumor center and tumor boundary different from those in healthy tissue? Eur Arch Otorhinolaryngol 2021; 278:5013-5020. [PMID: 33811549 DOI: 10.1007/s00405-021-06749-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 03/11/2021] [Indexed: 12/23/2022]
Abstract
PURPOSE This study aimed to investigate the relationship between oxidative stress levels in the tumor center, tumor edge, and healthy tissue. METHODS This study included a total of 53 patients with head and neck cancer. Samples of 5 × 5 × 5 mm were collected from the tumor center, tumor edge, and the healthy tissue. Total antioxidant status (TAS), total oxidant status (TOS), and oxidative stress index (OSI) values were evaluated. (1) Oxidative stress values in the center and edge of all tumors and in healthy tissues were compared according to localization. (2) Tumors were divided into two groups as malignant (Group 1 [n = 28]: Laryngeal and tongue squamous cell cancers) and benign (Group 2 [n = 25]: Pleomorphic adenoma and Warthin tumors). The groups were compared according to the localization of the tissues. RESULTS The TOS value in the tumor edge was significantly higher than those in the tumor center and the healthy tissue. The TAS value in tissue located in the tumor edge was significantly higher than in the healthy tissue. The OSI value in the tumor edge was significantly higher than those in the tumor center and the healthy tissue. In all three localizations (tumor center, tumor edge, and healthy tissue), TOS and OSI values in Group 1 were significantly higher than Group 2. CONCLUSION Oxidative stress values in the tumor edge are significantly higher than the center of the tumor and healthy tissue. In malignant tumors, oxidative stress values are significantly higher in all localizations compared to benign tumors.
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Affiliation(s)
- Remzi Dogan
- Department of Otorhinolaryngology, Faculty of Medicine, Bezmialem Vakif University, Fatih, Istanbul, Turkey.
| | - Eray Metin Guler
- Department of Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Fatih, Istanbul, Turkey
| | - Abdurrahim Kocyigit
- Department of Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Fatih, Istanbul, Turkey
| | - İsmail Çelik
- Department of Otorhinolaryngology, Faculty of Medicine, Bezmialem Vakif University, Fatih, Istanbul, Turkey
| | - Erol Senturk
- Department of Otorhinolaryngology, Faculty of Medicine, Bezmialem Vakif University, Fatih, Istanbul, Turkey
| | - Alper Yenigun
- Department of Otorhinolaryngology, Faculty of Medicine, Bezmialem Vakif University, Fatih, Istanbul, Turkey
| | - Selahattin Tugrul
- Department of Otorhinolaryngology, Faculty of Medicine, Bezmialem Vakif University, Fatih, Istanbul, Turkey
| | - Orhan Ozturan
- Department of Otorhinolaryngology, Faculty of Medicine, Bezmialem Vakif University, Fatih, Istanbul, Turkey
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24
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Eskandari Z, Bahadori F, Yapaoz MA, Yenigun VB, Celikten M, Kocyigit A, Onyuksel H. Targeting breast cancer using pirarubicin-loaded vasoactive intestinal peptide grafted sterically stabilized micelles. Eur J Pharm Sci 2021; 162:105830. [PMID: 33819623 DOI: 10.1016/j.ejps.2021.105830] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 03/29/2021] [Accepted: 03/30/2021] [Indexed: 12/22/2022]
Abstract
In this study the chemotherapeutic agent Pirarubicin (PRB) which is known for its serious side effects was actively targeted to the breast cancer cells by uploading it to the biocompatible and biodegradable Sterically Stabilized Micelles (SSMs) made of 1,2- Distearoyl- sn- glycero‑3- phosphoethanolamine- N- methoxy‑ polyethylene glycol 2000 (DSPE-PEG2000) to enhance efficacy and reduce toxicity. Vasoactive intestinal peptide (VIP), the receptors of which are overexpressed on the breast cancer cells, was grafted on the surface of the micelles. To the best of our knowledge this is the first report on active targeting of PRB to tumor site. For this purpose, PRB loaded VIP grafted SSMs (PRB-SSM-VIP) were synthesized and characterized. The in vitro efficiency of PRB-SSM-VIP along with SSM and free PRB was investigated on the MCF-7 breast cancer cells and the in vivo effects were studied on the 4T1 breast cancer bearing nude mice. Solubilizing 300 µg of PRB using 2.81 mg of DSPE-PEG2000 resulted in obtaining monodispersed particles of 12.16 ± 2.7 nm with slow drug release profile. Incorporation of PRB within the hydrophobic DSPE core of SSM was confirmed using differential scanning calorimetry (DSC) and the spherical shape of the synthesized particles was demonstrated using atomic force microscope (AFM). Both in vitro and in vivo studies showed significantly higher activity of PRB-SSM-VIP compared to free PRB. In vivo imaging showed successful accumulation of PRB-SSM-VIP at the tumor site and 98.8% tumor eradication was obtained with no signs of side effects. Current study suggests that SSM-VIP could be used as new drug delivery system for targeting PRB to the breast cancer cells.
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Affiliation(s)
- Zahra Eskandari
- Department of Chemistry, Biochemistry Division, Faculty of Sciences and Arts, Yildiz Technical University, Istanbul, Turkey; Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Bezmialem Vakif University, Istanbul, Turkey
| | - Fatemeh Bahadori
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Bezmialem Vakif University, Istanbul, Turkey.
| | - Melda Altıkatoglu Yapaoz
- Department of Chemistry, Biochemistry Division, Faculty of Sciences and Arts, Yildiz Technical University, Istanbul, Turkey.
| | - Vildan Betul Yenigun
- Department of Medical Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Mert Celikten
- Experimental Application and Research Center, Bezmialem Vakif University, Turkey
| | - Abdurrahim Kocyigit
- Department of Medical Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Hayat Onyuksel
- Department of Biopharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL 60612, USA
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25
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Guler EM, Sisman BH, Kocyigit A, Hatiboglu MA. Investigation of cellular effects of thymoquinone on glioma cell. Toxicol Rep 2021; 8:162-170. [PMID: 33489775 PMCID: PMC7806546 DOI: 10.1016/j.toxrep.2020.12.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 12/20/2020] [Accepted: 12/28/2020] [Indexed: 02/07/2023] Open
Abstract
Glioblastoma, as an invasive tumor, is one of the most common primary malignant brain tumors. Despite maximum aggressive treatment, patients with glioblastoma have a dismal prognosis. Thymoquinone (TQ) has been found to show anti-cancer effects on different types of cancer. There are a few in vitro studies on the effect of TQ on glial tumors. However, the molecular mechanism of TQ's anti-cancer effect has not been fully elucidated. In the present study, we aimed to investigate the genotoxic, apoptotic, and cytotoxic effects of TQ on C6 rat glioma cells. C6 glioma cells were analyzed after 24 h of exposure to different concentrations of TQ by the ATP cell viability assay for cytotoxicity, comet assay for genotoxicity, 2',7'dichlorodihydrofluorescein diacetate (H2DCF-DA) for intracellular reactive oxygen species (iROS) generation, 3.3'dihexyloxacarbocyanine iodide (DiOC6(3)) for mitochondrial membrane potential, GSH/GSSG-Glo Assay for glutathione level and Fura-2AM for intracellular calcium levels. Apoptosis induction was studied by acridine orange/ethidium bromide double staining, flow cytometry, and western blotting analyses. Caspase-3, Caspase-9, Bax, Bcl-2, and pSTAT3 protein levels were determined by the western blotting method. Cytotoxicity was enhanced by TQ in C6 glioma cells in a concentration-dependent manner. TQ also induced DNA damage, apoptosis, and increased iROS. Also, MMP and GSH levels were decreased by TQ. It inhibited pSTAT3, resulting in apoptosis induction through the regulation of anti-apoptotic and pro-apoptotic proteins. Our results suggest that TQ would be an effective treatment in glioma. Further studies should support these findings.
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Affiliation(s)
- Eray Metin Guler
- Department of Medical Biochemistry, Faculty of Hamidiye Medicine, University of Health Sciences Turkey, Istanbul, Turkey
- Department of Medical Biochemistry, Bezmialem Vakif University, Faculty of Medicine, Istanbul, Turkey
- Traditional and Complementary Medicine Advanced Research and Application Center (GETAMER), Bezmialem Vakif University, Istanbul, Turkey
| | - Behice Hande Sisman
- Department of Cardiology, Bezmialem Vakif University Faculty of Medicine, Istanbul, Turkey
| | - Abdurrahim Kocyigit
- Department of Medical Biochemistry, Bezmialem Vakif University, Faculty of Medicine, Istanbul, Turkey
- Traditional and Complementary Medicine Advanced Research and Application Center (GETAMER), Bezmialem Vakif University, Istanbul, Turkey
| | - Mustafa Aziz Hatiboglu
- Traditional and Complementary Medicine Advanced Research and Application Center (GETAMER), Bezmialem Vakif University, Istanbul, Turkey
- Department of Neurosurgery, Bezmialem Vakif University Faculty of Medicine Istanbul, Turkey
- Department of Molecular Biology, Beykoz Institute of Life Sciences and Biotechnology, Bezmialem Vakif University, Istanbul, Turkey
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26
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Guler EM, Gokce M, Bacaksiz A, Kocyigit A. Urotensin-II, oxidative stress, and inflammation increase in hypertensive and resistant hypertensive patients. Clin Exp Hypertens 2020; 43:211-216. [PMID: 33172302 DOI: 10.1080/10641963.2020.1847128] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Objective: Hypertension is a multi-factorial process prevalent in developed as well as in developing countries. Urotensin-II, different antioxidants, free radicals, and inflammatory biomarkers play an essential role in the cardiovascular system. The aim of this study is to investigate Urotensin-II, oxidative stress, and inflammation markers in normotensive, hypertensive, and resistant hypertensive patients. Methods: Fifty resistance hypertensive (rHT) patients, 50 hypertensive patients, and 50 age gender matched normotensive controls (NT-control) were enrolled. Urotensin-II (UII), total oxidant status (TOS), total antioxidant status (TAS), native thiol (NT), total thiol (TT), disulfide (DIS), interleukin 1 beta (IL1β), interleukin 6 (IL6), tumor necrosis factor-alpha (TNFα), high sensitive c reactive protein (hsCRP), high-density lipoprotein (HDL) low-density lipoprotein (LDL), and total cholesterol (TC) were evaluated. Results: Serum levels of UII, IL1β, IL6, TNFα, DIS, TOS, and OSI were found higher in rHT and HT as compared to NT-control (p < .001). On the contrary, serum levels of TT, TAS, and NT were lower in rHT and HT as compared to NT-control (p < .001). While TC, hsCRP, TOS, OSI, UII, IL1β, IL6, and TNFα levels increase from HT to rHT group (p < .001); TAS and NT levels decrease from HT to rHT group (p < .001). Conclusions: UII levels, oxidative stress, and inflammation are higher in rHT and HT, while antioxidants and thiol levels are lower than the NT-control. Our study clearly showed that rHT and HT are more susceptible to impaired states of antioxidants, oxidative stress, and free radicals.
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Affiliation(s)
- Eray Metin Guler
- Department of Medical Biochemistry, Bezmialem Vakif University School of Medicine , Istanbul, Turkey
| | - Mustafa Gokce
- Department of Pharmacology, Bezmialem Vakif University School of Pharmacy , Istanbul, Turkey
| | - Ahmet Bacaksiz
- Department of Cardiology, Bezmialem Vakif University School of Medicine , Istanbul, Turkey
| | - Abdurrahim Kocyigit
- Department of Medical Biochemistry, Bezmialem Vakif University School of Medicine , Istanbul, Turkey
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27
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Bozali K, Guler EM, Gulgec AS, Kocyigit A. Cytotoxic, genotoxic and apoptotic effects of Viburnum opulus on colon cancer cells: an in vitro study. Turkish Journal of Biochemistry 2020. [DOI: 10.1515/tjb-2020-0182] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Abstract
Objective
Intake of various fruits is quite significant for maintaining the human body, due to their supply of useful constituents. V. opulus has been found to have outstanding antioxidant activity while showing a pro-oxidant effect at high doses. Due to this feature, V. opulus would be anticipated to have a healing impact on cancer treatment. In this study, it has been proposed to examine the cytotoxic, genotoxic, and apoptotic effects of V. opulus on human colorectal cancer cell.
Method
Different concentrations of V. opulus methanolic extract (5–2000 μg/mL) were incubated for 24 h with colorectal cancer cell line (Lovo). The cell viability, intracellular reactive oxygen species (iROS), DNA damage, and apoptosis were measured after incubation.
Results
The obtained results of this research demonstrate decreased cell viability and increased DNA damage, iROS, and apoptosis levels of V. opulus in Lovo cells in a concentration-dependent manner in the range of 14.88–52.06%. There were strong positive relationships between apoptosis, genotoxicity, and cytotoxicity in V. opulus methanolic extract treated cancer cell line.
Discussion
This in vitro research clearly demonstrated that V. opulus methanolic extract induces DNA damage, apoptosis, and cytotoxicity in a dose-dependent manner in cancer cells due to its pro-oxidant activity.
Conclusion
Although in vitro results are favorable, in vivo and further studies are needed.
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Affiliation(s)
- Kubra Bozali
- Avans University of Applied Science, Biology and Medical Laboratory Research , Breda , the Netherlands
| | - Eray Metin Guler
- Bezmialem Vakif University, Medicine Faculty , Department of Medical Biochemistry , Istanbul , Turkey
| | | | - Abdurrahim Kocyigit
- Bezmialem Vakif University, Medicine Faculty , Department of Medical Biochemistry , Istanbul , Turkey
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28
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Bulut H, Yuksel B, Gul M, Eren M, Karatas E, Kara N, Yilmazer B, Kocyigit A, Labrou NE, Binay B. Conserved Amino Acid Residues that Affect Structural Stability of Candida boidinii Formate Dehydrogenase. Appl Biochem Biotechnol 2020; 193:363-376. [PMID: 32974869 DOI: 10.1007/s12010-020-03429-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 09/18/2020] [Indexed: 10/23/2022]
Abstract
The NAD+-dependent formate dehydrogenase (FDH; EC 1.2.1.2) from Candida boidinii (CboFDH) has been extensively used in NAD(H)-dependent industrial biocatalysis as well as in the production of renewable fuels and chemicals from carbon dioxide. In the present work, the effect of amino acid residues Phe285, Gln287, and His311 on structural stability was investigated by site-directed mutagenesis. The wild-type and mutant enzymes (Gln287Glu, His311Gln, and Phe285Thr/His311Gln) were cloned and expressed in Escherichia coli. Circular dichroism (CD) spectroscopy was used to determine the effect of each mutation on thermostability. The results showed the decisive roles of Phe285, Gln287, and His311 on enhancing the enzyme's thermostability. The melting temperatures for the wild-type and the mutant enzymes Gln287Glu, His311Gln, and Phe285Thr/His311Gln were 64, 70, 77, and 73 °C, respectively. The effects of pH and temperature on catalytic activity of the wild-type and mutant enzymes were also investigated. Interestingly, the mutant enzyme His311Gln exhibits a large shift of pH optimum at the basic pH range (1 pH unit) and substantial increase of the optimum temperature (25 °C). The present work supports the multifunctional role of the conserved residues Phe285, Gln287, and His311 and further underlines their pivotal roles as targets in protein engineering studies.
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Affiliation(s)
- Huri Bulut
- Medical Biochemistry Department, Faculty of Medicine, Istinye University, 34010, Istanbul, Turkey.,Medical Biochemistry Department, School of Medicine, Bezmialem Vakif University, 34093, Istanbul, Turkey
| | - Busra Yuksel
- Molecular Biology and Genetics Department, Istanbul Technical University, 34467, Istanbul, Turkey
| | - Mehmet Gul
- Molecular Biology and Genetics Department, Istanbul Technical University, 34467, Istanbul, Turkey
| | - Meryem Eren
- Molecular Biology and Genetics Department, Istanbul Technical University, 34467, Istanbul, Turkey
| | - Ersin Karatas
- Molecular Biology and Genetics Department, Gebze Technical University, 41400, Kocaeli, Turkey
| | - Nazli Kara
- Medical Biochemistry Department, Faculty of Medicine, Istinye University, 34010, Istanbul, Turkey
| | - Berin Yilmazer
- Molecular Biology and Genetics Department, Gebze Technical University, 41400, Kocaeli, Turkey
| | - Abdurrahim Kocyigit
- Medical Biochemistry Department, School of Medicine, Bezmialem Vakif University, 34093, Istanbul, Turkey
| | - Nikolaos E Labrou
- Laboratory of Enzyme Technology, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, Gr-11855, Athens, Greece
| | - Baris Binay
- Department of Bioengineering, Gebze Technical University, 41400, Kocaeli, Turkey.
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29
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Buyukaydin B, Guler EM, Karaaslan T, Olgac A, Zorlu M, Kiskac M, Kocyigit A. Relationship between diabetic polyneuropathy, serum visfatin, and oxidative stress biomarkers. World J Diabetes 2020; 11:309-321. [PMID: 32843933 PMCID: PMC7415233 DOI: 10.4239/wjd.v11.i7.309] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 05/08/2020] [Accepted: 05/13/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Diabetic polyneuropathy is a very common complication of diabetes. Numerous studies are available in terms of pathogenesis. But examination methods with low reliability are still not standardized and generally time consuming. High-sensitive, easy-to-access methods are expected. Biochemical markers are one of the subjects of research. We aimed to discover a potential biomarker that can be used for this purpose in patients with diabetes who have not yet developed symptoms of neuropathy.
AIM To determine the place and availability of visfatin and thiol-disulfide homeostasis in this disorder.
METHODS A total of 392 patients with type 2 diabetes mellitus were included in the study. The polyneuropathy clinical signs were evaluated with the Subjective Peripheral Neuropathy Screen Questionnaire and Michigan Neuropathy Screening Instrument questionnaire and examination. The biochemical parameters, oxidative stress markers, visfatin, and thiol-disulfide homeostasis were analyzed and correlated with each other and clinical signs.
RESULTS Subjective Peripheral Neuropathy Screen Questionnaire and Michigan Neuropathy Screening Instrument questionnaire with examination scores were correlated with each other and diabetes duration (P < 0.005). Neuropathy related symptoms were present in 20.7% of the patients, but neuropathy related findings were observed in 43.9% of the patients. Serum glucose, glycated hemoglobin, and visfatin were positively correlated with each other. Also, these parameters were positively correlated with the total oxidative stress index. Total and native thiol was positively correlated with total antioxidant status and negatively with oxidant status. Inversely thiol-disulfide positively correlated with higher glucose and oxidant status and negatively with total antioxidant status (P < 0.005). There was no correlation between visfatin and thiol-disulphide (P = 0.092, r = 0.086). However, a significant negative correlation was observed between visfatin and total with native thiol (P < 0.005, r = -0.338), (P < 0.005, r = -0.448).
CONCLUSION Diagnosis of neuropathy is one of the issues studied in patients with diabetes. Visfatin and thiol-disulfide balance were analyzed for the first time in this study with inspiring results.
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Affiliation(s)
- Banu Buyukaydin
- Department of Internal Medicine, Bezmialem Vakif University Medical Faculty, İstanbul 34093, Turkey
| | - Eray Metin Guler
- Department of Medical Biochemistry, Bezmialem Vakif University Medical Faculty, İstanbul 34093, Turkey
| | - Tahsin Karaaslan
- Department of Nephrology, Istanbul Medeniyet University Medical Faculty, İstanbul 34093, Turkey
| | - Atilla Olgac
- Department of Internal Medicine, Bezmialem Vakif University Medical Faculty, İstanbul 34093, Turkey
| | - Mehmet Zorlu
- Department of Internal Medicine, Bezmialem Vakif University Medical Faculty, İstanbul 34093, Turkey
| | - Muharrem Kiskac
- Department of Internal Medicine, Bezmialem Vakif University Medical Faculty, İstanbul 34093, Turkey
| | - Abdurrahim Kocyigit
- Department of Medical Biochemistry, Bezmialem Vakif University Medical Faculty, İstanbul 34093, Turkey
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30
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Guler EM, Bektay MY, Akyildiz AG, Sisman BH, Izzettin FV, Kocyigit A. Investigation of DNA damage, oxidative stress, and inflammation in synthetic cannabinoid users. Hum Exp Toxicol 2020; 39:1454-1462. [PMID: 32508150 DOI: 10.1177/0960327120930057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
BACKGROUND The widespread use of synthetic cannabinoids (SCs) among youth has become an important public health problem. Several life-threatening side effects of SC have been reported, including cardiovascular, gastrointestinal, neurological, renal, metabolic, ophthalmologic, and pulmonary effects, besides skin toxicity and hepatotoxicity. METHODS Given that high levels of SC can lead to oxidative stress, DNA damage, and inflammation, it has been aimed in this study to investigate the effects of SC in aspects of primary DNA damage, plasma total oxidant status (TOS)/total antioxidant status (TAS), thiol-disulfide homeostasis, myeloperoxidase (MPO) level, and cytokine levels (interleukin 1 beta (IL-1β), interleukin 6 (IL-6), and tumor necrosis factor-alpha (TNF-α)) of 40 SC users (SCUs) in Turkey. RESULTS Mean plasma TOS levels were significantly higher in the SCUs group than in the healthy group (HG). Similarly, mononuclear leukocyte DNA damage, plasma TOS, MPO activity, disulfide, oxidative stress index levels, IL-1β, IL-6, and TNF-α levels were significantly higher in the SCU group than in the HG, whereas plasma TAS, total, and native thiol levels were significantly lower in the SCU group than in the HG. CONCLUSION It is concluded that SC can cause increase in oxidative stress and in inflammatory processes in addition to its potential for DNA damage. Additional studies with larger sample sizes and longer durations should be held to understand more specific outcomes of SC use.
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Affiliation(s)
- E M Guler
- Faculty of Medicine, Department of Medical Biochemistry, Bezmialem Vakif University, Istanbul, Turkey.,Traditional and Complementary Medicine, Advanced Research and Application Center, Bezmialem Vakif University, Istanbul, Turkey
| | - M Y Bektay
- Faculty of Pharmacy, Department of Clinical Pharmacy, Bezmialem Vakif University, Istanbul, Turkey.,Faculty of Pharmacy, Department of Clinical Pharmacy, Marmara University, Istanbul, Turkey
| | - A G Akyildiz
- Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Bezmialem Vakif University, Istanbul, Turkey.,Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Istanbul University, Istanbul, Turkey
| | - B H Sisman
- Department of Emergency Medicine, Fatih Sultan Mehmet Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - F V Izzettin
- Faculty of Pharmacy, Department of Clinical Pharmacy, Bezmialem Vakif University, Istanbul, Turkey
| | - A Kocyigit
- Faculty of Medicine, Department of Medical Biochemistry, Bezmialem Vakif University, Istanbul, Turkey.,Traditional and Complementary Medicine, Advanced Research and Application Center, Bezmialem Vakif University, Istanbul, Turkey
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Kocyigit A, Aydogdu G, Balkan E, Yenigun VB, Guler EM, Bulut H, Koktasoglu F, Gören AC, Atayoglu AT. Quercus pyrenaica Honeydew Honey With High Phenolic Contents Cause DNA Damage, Apoptosis, and Cell Death Through Generation of Reactive Oxygen Species in Gastric Adenocarcinoma Cells. Integr Cancer Ther 2020; 18:1534735419876334. [PMID: 31556752 PMCID: PMC6764044 DOI: 10.1177/1534735419876334] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Many studies have shown that honey with high phenolic contents prevents cancer
formation. Furthermore, recent studies have demonstrated that honey can be used
for the treatment of cancer as well as cancer prevention. Antineoplastic effects
of honey are often associated with their antioxidant phenolic contents. However,
very few studies have dealt with the association of phenolic contents of honeys
in terms of antiproliferative effects. The aim of this study was, therefore, to
elucidate the cytotoxic, genotoxic, apoptotic, and reactive oxygen species (ROS)
generating effects of honey samples on the basis of their phenolic and flavonoid
contents. Fourteen different honey varieties were collected from various parts
of Turkey, and their characteristics regarding total phenols, flavonoids, and
antioxidant contents were determined to test their effects on gastric cancer
cells (AGS). For convenience, 2 honey varieties were selected, namely, Ida
Mountains Quercus pyrenaica honeydew honey (QPHH-IM) having the
highest phenolic and antioxidant content and Canakkale multifloral honey (MFH-C)
with the lowest phenolic and antioxidant content. Levels of 11 different
phenolic compounds in QPHH-IM and MFH-C samples were determined by LC-MS/MS. AGS
cells were incubated with different concentrations of QPHH-IM and MFH-C for 24
hours, then the cell viability, DNA damage, apoptosis, and generation of ROS
were determined. We found that QPHH-IM had more cytotoxic, genotoxic, and
apoptotic effects than that of MFH-C. We think that these effects are probably
related to pro-oxidant activities due to the high phenolic contents present.
Therefore, further research on high-phenolic honey may contribute to the future
development of cancer therapeutics.
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Affiliation(s)
- Abdurrahim Kocyigit
- Bezmialem Vakif University, Istanbul, Turkey.,Advanced Research and Application Center of Traditional and Complementary Medicine, Istanbul, Turkey
| | | | - Ezgi Balkan
- Bezmialem Vakif University, Istanbul, Turkey
| | | | | | - Huri Bulut
- Bezmialem Vakif University, Istanbul, Turkey
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Koyuncu I, Gonel A, Durgun M, Kocyigit A, Yuksekdag O, Supuran CT. Assessment of the antiproliferative and apoptotic roles of sulfonamide carbonic anhydrase IX inhibitors in HeLa cancer cell line. J Enzyme Inhib Med Chem 2019; 34:75-86. [PMID: 30362386 PMCID: PMC6211230 DOI: 10.1080/14756366.2018.1524380] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 09/12/2018] [Accepted: 09/12/2018] [Indexed: 12/22/2022] Open
Abstract
Carbonic anhydrase IX (CA IX) has recently been validated as an antitumor/antimetastatic drug target. In this study, we examined the underlying molecular mechanisms and the anticancer activity of sulfonamide CA IX inhibitors against cervical cancer cell lines. The effects of several sulfonamides on HeLa, MDA-MB-231, HT-29 cancer cell lines, and normal cell lines (HEK-293, PNT-1A) viability were determined. The compounds showed high cytotoxic and apoptotic activities, mainly against HeLa cells overexpressing CA IX. We were also examined for intracellular reactive oxygen species (ROS) production; intra-/extracellular pH changes, for inhibition of cell proliferation, cellular mitochondrial membrane potential change and for the detection of caspase 3, 8, 9, and CA IX protein levels. Of the investigated sulfonamides, one compound was found to possess high cytotoxic and anti-proliferative effects in HeLa cells. The cytotoxic effect occurred via apoptosis, being accompanied by a return of pHe/pHi towards normal values as for other CA IX inhibitors investigated earlier.
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Affiliation(s)
- Ismail Koyuncu
- Department of Biochemistry, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| | - Ataman Gonel
- Department of Biochemistry, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| | - Mustafa Durgun
- Department of Chemistry, Faculty of Arts and Sciences, Harran University, Sanliurfa, Turkey
| | - Abdurrahim Kocyigit
- Department of Medical Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Ozgur Yuksekdag
- Department of Biochemistry, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| | - Claudiu T. Supuran
- Neurofarba Dept., Section of Pharmaceutical and Nutriceutical Sciences, Università degli Studi di Firenze, Sesto Fiorentino (Florence), Italy
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Evran S, Calis F, Akkaya E, Baran O, Cevik S, Katar S, Gurevin EG, Hanimoglu H, Hatiboglu MA, Armutak EI, Karatas E, Kocyigit A, Kaynar MY. The effect of high mobility group box-1 protein on cerebral edema, blood-brain barrier, oxidative stress and apoptosis in an experimental traumatic brain injury model. Brain Res Bull 2019; 154:68-80. [PMID: 31715313 DOI: 10.1016/j.brainresbull.2019.10.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 10/21/2019] [Accepted: 10/26/2019] [Indexed: 12/24/2022]
Abstract
Traumatic brain injury (TBI) is one of the important reason of morbidity and mortality. While the primary injury due to mechanical impact is unavoidable, the secondary injury which is formed as a result of primary injury and thought to occur due to neuroinflammation in the forefront can be prevented and by this way mortality and morbidity can be reduced. High mobility group box-1 (HMGB1) is a protein that triggers the neuroinflammatory process by being released from the nucleus of necrotic tissues after primary injury. The aim of this study is to investigate the effects of HMGB1 on its receptors TLR4 and RAGE, cerebral edema, blood-brain barrier, oxidative stress and apoptosis causing secondary damage in an experimental traumatic brain injury model. Weighing between 280-320 g, 10 to 12 weeks-old, a total of 30 adult male Sprague-Dawley rats were used for the experiments. The rats were randomly assigned to 3 groups: 1) Control, 2) TBI and 3) TBI + ethyl pyruvate group (n = 10 per group). Right parietal cortical contusion was made by using a weight-dropping TBI method. Brain samples were harvested from pericontusional area at 24 h after TBI. HMGB1, TLR4, RAGE, occludin, claudin-5, ZO-1 levels are investigated by western blot analyses and immunohistochemistry examinations. HMGB-1, TLR4 and RAGE expressions increased after TBI. Major tight junction proteins in the blood-brain barrier: occludin, claudin-5 and ZO-1 expressions decreased after TBI. Brain edema increased after TBI. Also, proapoptotic bax and active caspase 3 expressions increased, antiapoptotic bcl-2 levels decreased after TBI. Total oxidant status and oxidative stress increased, total antioxidant status decreased after TBI. HMGB-1 protein plays a key role in the pathophysiology of traumatic brain injury.
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Affiliation(s)
- Sevket Evran
- Department of Neurosurgery, Haseki Research and Training Hospital, Medical Faculty, Health Sciences University, Istanbul, Turkey.
| | - Fatih Calis
- Department of Neurosurgery, Goztepe Research and Training Hospital, Istanbul Medeniyet University, Istanbul, Turkey
| | - Enes Akkaya
- Department of Neurosurgery, Sisli Hamidiye Etfal Research and Training Hospital, Medical Faculty, Health Sciences University, Istanbul, Turkey
| | - Oguz Baran
- Department of Neurosurgery, Haseki Research and Training Hospital, Medical Faculty, Health Sciences University, Istanbul, Turkey
| | - Serdar Cevik
- Department of Neurosurgery, Medical Faculty, Koc University, Istanbul, Turkey
| | - Salim Katar
- Neurosurgery Clinic, Diyarbakir State Hospital, Diyarbakir, Turkey
| | - Ebru Gurel Gurevin
- Department of Biology, Faculty of Science, Istanbul University, Istanbul, Turkey
| | - Hakan Hanimoglu
- Department of Neurosurgery, Medical Faculty, Koc University, Istanbul, Turkey
| | - Mustafa Aziz Hatiboglu
- Department of Neurosurgery, Medical Faculty, Bezmialem Vakif University, Istanbul, Turkey
| | - Elif Ilkay Armutak
- Department of Histology and Embriology, Faculty of Veterinary Medicine, Istanbul University, Cerrahpasa, Istanbul, Turkey
| | - Ersin Karatas
- Department of Biochemistry, Medical Faculty, Bezmialem Vakif University, Istanbul, Turkey
| | - Abdurrahim Kocyigit
- Department of Biochemistry, Medical Faculty, Bezmialem Vakif University, Istanbul, Turkey
| | - Mehmet Yasar Kaynar
- Department of Neurosurgery, Medical Faculty, Koc University, Istanbul, Turkey
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Hatiboglu MA, Kocyigit A, Guler EM, Akdur K, Khan I, Nalli A, Karatas E, Tuzgen S. P11.55 Thymoquinone enhances the sensitivity of B16-F10 melanoma cell line to Gamma Knife radiosurgery. Neuro Oncol 2019. [DOI: 10.1093/neuonc/noz126.201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
BACKGROUND
Melanoma patients with brain metastasis have poor prognosis. Gamma Knife radiosurgery (GKR) is an effective treatment to control brain metastasis from melanoma. Thymoquinone (TQ) has gained attention as a potential therapeutic option due to its anti-tumor effects on various cancers. The aim of the study was to invetsigate the effect of GKR in B16-F10 melanoma cells in vitro and in established intracerebral melanoma model in mice in vivo, and the sensitizing efficacy of TQ towards GKR.
MATERIAL AND METHODS
Effects of GKR and combination treatment of GKR and TQ were studied on B16-F10 melanoma cells via analyzing cytotoxicty by adenosine triphosphate (ATP) assay; apoptosis induction by acridine orange staining and genotoxicity by comet assay. Expression of STAT3, p-STAT3 (Tyr705) and apoptotic pathway proteins was investigated by western blot analysis. Enzyme Linked Immunosorbent Assay (ELISA) was performed to assess the expression of inflammatory cytokines. Also survival was evaluated in mice with brain tumor after GKR and its combination treatment with TQ.
RESULTS
The effects of GKR on cytotoxicity, apoptosis and genotxicity were significantly enhanced by TQ on B16-F10 melanoma cells. GKR induced apoptosis through inhibition of p-STAT3 expression, which subsequently regulated pro- and anti-apoptotic proteins such as caspase-3, Bax, Bcl-2, survivin. Combination TQ with GKR irradiation enhanced the apoptotic effect of GKR irradiation. Furthermore, GKR decreased the levels of tumor-related inflammatory cytokines on B16-F10 melanoma cells. This effect was more pronounced when TQ was added to GKR irradiation. GKR with 15 Gy improved the survival of mice with intracerebral melanoma compared to untreated mice. Although, the additive effect of TQ in combination with GKR irradiation on B16-F10 melanoma cells in vitro, TQ did not add any significant survival benefit to GKR treatment in mice with intracerebral melanoma.
CONCLUSION
Our findings indicate that TQ would be a potential therapeutic and sensitizing agent in addition to GKR to enhance the anti-tumor effect of irradiation. Further studies are required to support our findings.
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Affiliation(s)
- M A Hatiboglu
- Department of Neurosurgery, Bezmialem Vakif University Medical School, Istanbul, Turkey
- Department of Molecular Biology, Beykoz Institute of Life Sciences and Biotechnology, Bezmialem Vakif University, Istanbul, Turkey
| | - A Kocyigit
- Department of Biochemistry, Bezmialem Vakif University Medical School, Istanbul, Turkey
| | - E M Guler
- Department of Biochemistry, Bezmialem Vakif University Medical School, Istanbul, Turkey
| | - K Akdur
- Department of Biochemistry, Bezmialem Vakif University Medical School, Istanbul, Turkey
| | - I Khan
- Department of Molecular Biology, Beykoz Institute of Life Sciences and Biotechnology, Bezmialem Vakif University, Istanbul, Turkey
| | - A Nalli
- Department of Neurosurgery, Bezmialem Vakif University Medical School, Istanbul, Turkey
- Department of Molecular Biology, Beykoz Institute of Life Sciences and Biotechnology, Bezmialem Vakif University, Istanbul, Turkey
| | - E Karatas
- Department of Biochemistry, Bezmialem Vakif University Medical School, Istanbul, Turkey
| | - S Tuzgen
- Department of Neurosurgery, Bezmialem Vakif University Medical School, Istanbul, Turkey
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Galleze A, Kocyigit A, Cherif N, Attal N, Touil-Boukoffa C, Raache R. Assessment of oxidative/anti-oxidative markers and DNA damage profile induced by chemotherapy in algerian children with lymphoma. Drug Chem Toxicol 2019; 43:169-173. [PMID: 31464142 DOI: 10.1080/01480545.2019.1659309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The aim of this study was to assess the oxidative stress and the genotoxicity induced by chemotherapy by the determination of plasma malondialdehyde (MDA) level, protein carbonyl (PC) content, superoxide dismutase (SOD) activity and lymphocyte DNA damage in Algerian children with lymphoma. The study population included thirty patients with lymphoma and fifty healthy controls. Patients were treated with 2 courses of OEPA (oncovin 1,5 mg/m2, etoposide 125 mg/m2, prednisone 60 mg/m2 and doxorubicin 40 mg/m2) followed by 2 to 4 courses of COPDAC (cyclophosphamide 500 mg/m2, oncovin 1,5 mg/m2, dacarbazine 250 mg/m2 and prednisone 40 mg/m2). Plasma levels of MDA, PC and SOD were spectrophotometrically measured. DNA damage was assessed by alkaline comet assay in peripheral blood leukocytes. Plasma MDA, PC levels and lymphocyte DNA damage, were found to be significantly higher in lymphoma patients than in controls (p < 0.001). Whereas, SOD activity in lymphoma patients was significantly lower than in healthy controls (p < 0.001). There were significant positive correlations between DNA damage, MDA and PC in patients (r = 0.96, p < 0.001, r = 0.97, p < 0.001, respectively), and negative correlation with SOD (r = -0.87, p < 0.01). Our results indicated that, leukocytes DNA damage and oxidative stress were significantly higher in lymphoma patients, suggesting that the direct effect of chemotherapy and the alteration of the redox balance may influence oxidative/antioxidative status.
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Affiliation(s)
- Assia Galleze
- Department of Cellular and Molecular Biology, Cytokines and Nitric Oxide Synthases, Faculty of Biology, University Houari Boumediene USTHB, Algiers, Algeria
| | - Abdurrahim Kocyigit
- Faculty of Medicine, Department of Biochemistry, Bezmialem Vakif University, Istanbul, Turkey
| | - Nacira Cherif
- Hematology Department, Beni Messous Hospital, Algiers, Algeria
| | - Nabila Attal
- Department of Immunology, Institute Pasteur of Algeria, Algiers, Algeria
| | - Chafia Touil-Boukoffa
- Department of Cellular and Molecular Biology, Cytokines and Nitric Oxide Synthases, Faculty of Biology, University Houari Boumediene USTHB, Algiers, Algeria
| | - Rachida Raache
- Department of Cellular and Molecular Biology, Cytokines and Nitric Oxide Synthases, Faculty of Biology, University Houari Boumediene USTHB, Algiers, Algeria
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Turk HM, Aliyev A, Celik RS, Seker M, Coban E, Demir T, Baydas T, Kocyigit A. Usefulness of serum M30 and M65 levels to predict response to neoadjuvant chemotherapy in patients with breast cancer. Curr Probl Cancer 2019; 44:100497. [PMID: 31371034 DOI: 10.1016/j.currproblcancer.2019.06.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 05/09/2019] [Accepted: 06/27/2019] [Indexed: 11/18/2022]
Abstract
OBJECTIVE M30 and M65 levels reflect tumor cell activity in patients with epithelial cancer. Cytokeratin 18 is one of the cell skeletal elements. M30 is a apoptotic marker of cytokeratin 18. M65 levels are both an apoptosis and a necrosis marker. The aim of our study was to determine the predictive value of M30 and M65 levels in neoadjuvant treatment of breast cancer. MATERIALS AND METHODS In this prospective study, 41 patients with breast cancer who underwent neoadjuvant chemotherapy were included. Following 4 cycles of chemotherapy with anthracycline containing regimen, patients received paclitaxel treatment for 12 weeks. Blood was collected from the patients before chemotherapy and on day 21, after the 2nd, 4th, and 8th cycles. M30 and M65 levels were measured with the ELISA method. RESULTS While there was an increase in M30 and M65 levels at the 4th cycle (P < 0.05), levels were decreased after the 8th cycle. In addition, there was no significant relationship among M30, M65 levels, and prognostic factors such as ER, PR, c-Erb-2, Ki-67, pathologic-T, pathologic-N, and chemotherapy responses. CONCLUSION M30 and M65 levels are not of predictive values of response to breast cancer patients receiving neoadjuvant chemotherapy. Nevertheless, M30 and M65 levels increased when patients kept receiving anthracycline containing chemotherapy.
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Affiliation(s)
- H Mehmet Turk
- Bezmialem Vakif University, Faculty of Medicine, Department of Medical Oncology, Fatih/Istanbul, Turkey
| | - Altay Aliyev
- Bezmialem Vakif University, Faculty of Medicine, Department of Medical Oncology, Fatih/Istanbul, Turkey.
| | - Rabia Sevda Celik
- Bezmialem Vakif University, Faculty of Medicine, Department of Internal Medicine, Fatih/Istanbul, Turkey
| | - Mesut Seker
- Bezmialem Vakif University, Faculty of Medicine, Department of Medical Oncology, Fatih/Istanbul, Turkey
| | - Ezgi Coban
- Bezmialem Vakif University, Faculty of Medicine, Department of Medical Oncology, Fatih/Istanbul, Turkey
| | - Tarık Demir
- Bezmialem Vakif University, Faculty of Medicine, Department of Medical Oncology, Fatih/Istanbul, Turkey
| | - Tuba Baydas
- Bezmialem Vakif University, Faculty of Medicine, Department of Internal Medicine, Fatih/Istanbul, Turkey
| | - Abdurrahim Kocyigit
- Bezmialem Vakif University, Faculty of Medicine, Department of Biochemistry, Fatih/Istanbul, Turkey
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Hatiboglu MA, Kocyigit A, Guler EM, Nalli A, Akdur K, Sakarcan A, Ozek E, Uysal O, Mayadagli A. Gamma knife radiosurgery compared to whole brain radiation therapy enhances immunity via immunoregulatory molecules in patients with metastatic brain tumours. Br J Neurosurg 2019; 34:604-610. [PMID: 31317782 DOI: 10.1080/02688697.2019.1642445] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Background: There is lack of data on the effect of stereotactic radiosurgery in modulation of the immune system for cancer patients with metastatic brain tumours. Therefore, we investigated the change in levels of immunoregulatory molecules after Gamma Knife radiosurgery (GKR) and whole brain radiation therapy (WBRT) in patients with brain metastases.Methods: Peripheral blood samples were collected from 15 patients who received GKR, nine patients who received WBRT for brain metastases and 10 healthy controls. Samples were obtained at three time points such as before, 1h after and 1 week after the index procedure for patients treated with GKR or WBRT. All patients' demographic data and radiosurgical parameters were retrospectively reviewed. We analyzed the change in the levels of T-lymphocyte-associated antigen 4 (CTLA-4) and programmed cell death ligand-1 (PD-L1), and cytokines such as IL-2, IL-10, IFN-γ, TNF-α after GKR and WBRT using Enzyme-linked immunosorbent assays (ELISA).Results: Baseline level of IFN-γ was found to be lower and that of PD-L1 was higher in the GKR group compared to WBRT group and healthy controls (p < 0.05 and p < 0.01, respectively). Levels of IFN-γ and IL-2 were increased (p < 0.01 and p < 0.01, respectively), while CTLA-4 and PD-L1 were decreased (p = 0.05 and p = 0.01, respectively) after GKR compared to pre-GKR levels, while there was no change after WBRT.Conclusion: GKR regulates immunoregulatory molecules towards enhancing the immune system, while WBRT did not exert any effect. These findings suggested that treatment of metastatic brain lesion with GKR might stimulate a systemic immune response against the tumour.
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Affiliation(s)
- Mustafa Aziz Hatiboglu
- Department of Neurosurgery, Bezmialem Vakif University School of Medicine, Istanbul, Turkey.,Department of Molecular Biology, Bezmialem Vakif University Beykoz Institute of Life Science and Biotechnology, Istanbul, Turkey
| | - Abdurrahim Kocyigit
- Department of Medical Biochemistry, Bezmialem Vakif University School of Medicine, Istanbul, Turkey
| | - Eray Metin Guler
- Department of Medical Biochemistry, Bezmialem Vakif University School of Medicine, Istanbul, Turkey
| | - Arife Nalli
- Department of Molecular Biology, Bezmialem Vakif University Beykoz Institute of Life Science and Biotechnology, Istanbul, Turkey
| | - Kerime Akdur
- Department of Neurosurgery, Bezmialem Vakif University School of Medicine, Istanbul, Turkey
| | - Ayten Sakarcan
- Department of Neurosurgery, Bezmialem Vakif University School of Medicine, Istanbul, Turkey
| | - Erdinc Ozek
- Department of Neurosurgery, Bezmialem Vakif University School of Medicine, Istanbul, Turkey
| | - Omer Uysal
- Department of Biostatistics, Bezmialem Vakif University School of Medicine, Istanbul, Turkey
| | - Alpaslan Mayadagli
- Department of Radiation Oncology, Bezmialem Vakif University School of Medicine, Istanbul, Turkey
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Kocyigit A, Guler EM, Kaleli S. Anti-inflammatory and antioxidative properties of honey bee venom on Freund's Complete Adjuvant-induced arthritis model in rats. Toxicon 2019; 161:4-11. [DOI: 10.1016/j.toxicon.2019.02.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 02/05/2019] [Accepted: 02/13/2019] [Indexed: 12/28/2022]
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Günes-Bayir A, Kocyigit A, Güler EM, Kiziltan HS. Effects of Thymol, a Natural Phenolic Compound, on Human Gastric Adenocarcinoma Cells In Vitro. Altern Ther Health Med 2019; 25:12-21. [PMID: 29477139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
CONTEXT Alternative and complementary medicine has gained importance in anticancer treatment, reflecting a movement toward an integrated approach to treating various diseases. Natural products originating from plants can contain biologically active substances. Thymol is a major component of many plants from the family Lamiaceae that are often used for medicinal and culinary purposes in Mediterranean countries. OBJECTIVE The purpose of the present study was to investigate thymol's cytotoxic, genotoxic, apoptotic effects on gastric adenocarcinoma (AGS) cells, including measurement of reactive oxygen species (ROS) and glutathione (GSH) levels at the same time. DESIGN The research team studied thymol's anticancer potential in vitro. SETTING The research was conducted at the Laboratory of Biochemistry of the Faculty of Medicine at Bezmialem Vakif University (Istanbul, Turkey). INTERVENTION Caucasian human AGS cells were exposed to 7 concentrations of thymol-10, 20, 30, 50, 100, 200, and 400 μM-prepared from a stock solution of 600 μM of thymol in dimethyl sulfoxide (DMSO), and after 24 h of incubation, the results were analyzed. The thymol was obtained commercially. The study used a negative control prepared in a concentration of 1:1000 from the stock solution of DMSO. OUTCOME MEASURES Cytotoxicity was determined using (1) the adenosine 5'-triphosphate cell viability assay; (2) the dichloro-dihydro-fluorescein diacetate assay to evaluate the generation of ROS; (3) the luminescence-based, total GSH assay to determine the GSH levels; and (4) the comet assay to study genotoxicity. Apoptotic induction of thymol was detected (5) by acridine orange/ethidium bromide staining and (6) by Western blotting using a value below the half maximal inhibitory concentration (IC50). RESULTS Thymol showed significant cytotoxic, genotoxic, apoptotic, ROS-generating, and GSH-reducing effects, in a dose-dependent manner (P ≤ .001). A close negative relationship existed between cell viability and the ROS level. CONCLUSIONS After researchers have confirmed thymol's anticarcinogenic effects in vitro on healthy cell lines and in vivo, it may be found to be a novel and strong therapeutic agent against gastric cancer. The study's results suggest that thymol may have therapeutic power when developed from natural components of the diet for treatment of the disease.
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Koyuncu I, Gonel A, Kocyigit A, Temiz E, Durgun M, Supuran CT. Selective inhibition of carbonic anhydrase-IX by sulphonamide derivatives induces pH and reactive oxygen species-mediated apoptosis in cervical cancer HeLa cells. J Enzyme Inhib Med Chem 2018; 33:1137-1149. [PMID: 30001631 PMCID: PMC6052416 DOI: 10.1080/14756366.2018.1481403] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 05/23/2018] [Accepted: 05/23/2018] [Indexed: 01/07/2023] Open
Abstract
Selective inhibition with sulphonamides of carbonic anhydrase (CA) IX reduces cell proliferation and induces apoptosis in human cancer cells. The effect on CA IX expression of seven previously synthesised sulphonamide inhibitors, with high affinity for CA IX, as well as their effect on the proliferation/apoptosis of cancer/normal cell lines was investigated. Two normal and three human cancer cell lines were used. Treatment resulted in dose- and time-dependent inhibition of the growth of various cancer cell lines. One compound showed remarkably high toxicity towards CA IX-positive HeLa cells. The mechanisms of apoptosis induction were determined with Annexin-V and AO/EB staining, cleaved caspases (caspase-3, caspase-8, caspase-9) and cleaved PARP activation, reactive oxygen species production (ROS), mitochondrial membrane potential (MMP), intracellular pH (pHi), extracellular pH (pHe), lactate level and cell cycle analysis. The autophagy induction mechanisms were also investigated. The modulation of apoptotic and autophagic genes (Bax, Bcl-2, caspase-3, caspase-8, caspase-9, caspase-12, Beclin and LC3) was measured using real time PCR. The positive staining using γ-H2AX and AO/EB dye, showed increased cleaved caspase-3, caspase-8, caspase-9, increased ROS production, MMP and enhanced mRNA expression of apoptotic genes, suggesting that anticancer effects are also exerted through its apoptosis-inducing properties. Our results show that such sulphonamides might have the potential as new leads for detailed investigations against CA IX-positive cervical cancers.
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Affiliation(s)
- Ismail Koyuncu
- Department of Biochemistry, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| | - Ataman Gonel
- Department of Biochemistry, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| | - Abdurrahim Kocyigit
- Department of Medical Biochemistry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Ebru Temiz
- Department of Biochemistry, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| | - Mustafa Durgun
- Department of Chemistry, Faculty of Arts and Sciences, Harran University, Sanliurfa, Turkey
| | - Claudiu T. Supuran
- Laboratorio di Chimica Bioinorganica, Università degli Studi di Firenze, Polo Scientifico, Sesto Fiorentino, Florence, Italy
- Neurofarba Department, Section of Pharmaceutical and Nutriceutical Sciences, Università degli Studi di Firenze, Sesto Fiorentino, Florence, Italy
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Sezer T, Altinisik M, Guler EM, Kocyigit A, Ozdemir H, Koytak A. Evaluation of xenon, light-emitting diode (LED) and halogen light toxicity on cultured retinal pigment epithelial cells. Cutan Ocul Toxicol 2018; 38:125-130. [DOI: 10.1080/15569527.2018.1539008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Taha Sezer
- Department of Ophthalmology, Igdir State Hospital, Igdir, Turkey
| | - Muhammed Altinisik
- Department of Ophthalmology, Manisa Celal Bayar University, Manisa, Turkey
| | - Eray Metin Guler
- Department of Medical Biochemistry, Bezmialem Vakif University, Istanbul, Turkey
| | - Abdurrahim Kocyigit
- Department of Medical Biochemistry, Bezmialem Vakif University, Istanbul, Turkey
| | - Hakan Ozdemir
- Department of Ophthalmology, Bezmialem Vakif University, Istanbul, Turkey
| | - Arif Koytak
- Department of Ophthalmology, Bezmialem Vakif University, Istanbul, Turkey
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Yilmazer C, Cevik M, Kocyigit A. Effects of subcutaneous melatonin implants and short-term intravaginal progestagen treatments on estrus induction and fertility of Kivircik ewes on seasonal anestrus. Pol J Vet Sci 2018; 21:353-359. [PMID: 30450875 DOI: 10.24425/122604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The aim of this study was to compare the efficacy of estrus induction and fertility by using subcutaneous melatonin (MEL, T1) and short-term intravaginal medroxyprogesteronacetate plus pregnant mare serum gonadotropin treatments (sMAP+eCG, T2) in ewes on seasonaly anestrus. In this study, 105 mature clinically healthy Kivircik ewes in anestrus season and 4 rams were used. After synchronization applications, ewes exhibiting estrus signs were hand-mated with rams known to be fertile. Blood samples were collected at different times in order to determine progesterone (P4) concentrations. Results showed that estrus manipulation protocols induced significant improvement in pregnancy rate. All the fertility results obtained with the sMAP+eCG or MEL groups were similar, in seasonal anestrus. The efficacy duration of P4 in the MEL group was longer than that in short-term progestagen group. Plasma P4 concentrations was significantly different between the first (I) and last (III) measurement days (p0.01). Increase in P4 concentration in T2 group was faster than that in T1 group, and blood P4 concentrations at higher levels could successfully be achieved by using any of the protocols in this study during the seasonal anestrus. In conclusion, according to the results obtained, the hormone application groups received very high estrus response. In addition, the twin ratio was found to be higher in T1 group compared to those determined in the other groups (T2 and Control group). Furthermore, plasma P4 concentrations and high birth rates were obtained in ewes in T1 and T2 groups. These procedures can be considered a good alternative to traditional procedures due to its flexibility under field conditions.
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Affiliation(s)
- C Yilmazer
- Republic of Turkey Ministry of Food, Agriculture and Livestock, 59000, Tekirdag, Turkey
| | - M Cevik
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Ondokuz Mayis University, 55200, Samsun, Turkey
| | - A Kocyigit
- 3Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Cumhuriyet University, 58140, Sivas, Turkey
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Ozer OF, Guler EM, Kocyigit A, Selek S, Yigit M, Meral I, Gultepe BS, Ersoy YE. Raftlin, presepsin levels and thiol-disulphide homeostasis in acute appendicitis: A pilot study. J PAK MED ASSOC 2018; 68:1660-1665. [PMID: 30410146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To investigate some of the new inflammatory and oxidative stress markers in acute appendicitis. METHODS This clinical pilot study was conducted at the emergency department of Bezmialem Vakif University, Istanbul, Turkey, between January and July 2015, and comprised patients with definitive diagnosis of acute appendicitis and as many healthy controls. Venous blood was collected to assess white blood cell count, C-reactive protein, raftlin, presepsin, total thiol, native thiol and disulphide levels. Alvarado scores of patients were determined at the time of admission. Surgical excisions were sent for pathological examination. The results of histopathology of appendectomy specimens were categorised as non-perforated or perforated appendicitis. RESULTS There were130 subjects with 65(50%) patients and 65(50%) controls. Serum raftlin, presepsin, white blood count, C-reactive protein and disulphide levels were higher, and the total and native thiol levels were significantly lower in patients compared to controls (p<0.05). There was no significant difference between the non-perforated and perforated appendicitis patients regarding all the measured parameters (p>0.05) except mean Alvarado scores which were higher in perforated than non-perforated appendicitis (p<0.05). CONCLUSIONS Inflammatory and oxidative stress markers were significantly different in acute appendicitis patients compared to healthy controls.
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Affiliation(s)
- Omer Faruk Ozer
- Department of Biochemistry, School of Medicine, Bezmialem Vakif University
| | - Eray Metin Guler
- Department of Biochemistry, School of Medicine, Bezmialem Vakif University
| | | | - Sahabettin Selek
- Department of Biochemistry, School of Medicine, Bezmialem Vakif University
| | - Mehmet Yigit
- Department of Emergency Medicine, Haseki Training and Research Hospital, Istanbul, Turkey
| | - Ismail Meral
- Department of Physiology, School of Medicine, Bezmialem Vakif University
| | | | - Yeliz Emine Ersoy
- Department of General Surgery, School of Medicine, Bezmialem Vakif University
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Falay Gur T, Erdemir AV, Gurel MS, Kocyigit A, Guler EM, Erdil D. The investigation of the relationships of demodex density with inflammatory response and oxidative stress in rosacea. Arch Dermatol Res 2018; 310:759-767. [PMID: 30151656 DOI: 10.1007/s00403-018-1857-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 08/05/2018] [Accepted: 08/21/2018] [Indexed: 01/11/2023]
Abstract
The relationships of demodex density with systemic oxidative stress, inflammatory response, and clinical severity in rosacea are not clear. This study aimed to (a) analyze the levels of systemic oxidative stress, antioxidant capacity, inflammatory parameters, and matrix metalloproteinases (MMPs) in systemic circulation in patients with rosacea, (b) identify the relationship between mite density and both oxidative stress and inflammation, and (c) investigate the role of photoaging and sebum secretion in etiopathogenesis. Forty patients with rosacea and 40 age-, sex-, and skin phenotype-matched healthy volunteers were included in the study. Clinical disease severity of the patients was determined. Sebum levels were measured in both the groups, and photoaging was evaluated. Reflectance confocal microscopy was used to calculate demodex density. Serum total antioxidant capacity (TAC), total oxidant capacity (TOC), myeloperoxidase (MPO), MMP-1, MMP-9, arylesterase (ARES), interleukin-1β (IL-1β), paraoxonase-1 (PON-1), and tumor necrosis factor-α (TNF-α) levels were also analyzed. The patients with rosacea had significantly higher serum TOC and lower TAC levels (p < 0.001). The serum ARES and PON-1 levels were significantly lower (p = 0.045 and p < 0.001, respectively); however, the serum levels of MMP-1, MMP-9, IL-1β and MPO were higher in the patient group. Demodex parameters were higher in the patient group compared to the control group. There was no significant correlation between the number of mites and disease severity. In addition, the number of mites was not correlated with the serum levels of TAC, TOC, OSI, MPO, MMP-1, MMP-9, ARES, PON-1, TNF-α, and IL-1β. However, sebum levels were directly proportional to the number of mites. Photoaging severity was similar between the patients and control subjects. The changing sebaceous microenvironment in rosacea leads to an increase in the number of demodex mites. However, increased demodex density does not alter disease severity, level of oxidative stress, or inflammation. Although none of the patients with rosacea had any underlying systemic disease, patients' systemic oxidative stress and inflammation parameters were found high in systemic circulation. It is assumed that the patients with rosacea are more prone to systemic diseases.
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Affiliation(s)
- Tuğba Falay Gur
- Department of Dermatology, Sultan Abdulhamid Han Training and Research Hospital, Health Science University, Usküdar, Istanbul, Turkey.
| | - Aslı Vefa Erdemir
- Department of Dermatology, Göztepe Training and Research Hospital, Istanbul Medeniyet University, Istanbul, Turkey
| | - Mehmet Salih Gurel
- Department of Dermatology, Göztepe Training and Research Hospital, Istanbul Medeniyet University, Istanbul, Turkey
| | - Abdurrahim Kocyigit
- Department of Biochemistry, Bezmialem Vakif University Medical School, Istanbul, Turkey
| | - Eray Metin Guler
- Department of Biochemistry, Bezmialem Vakif University Medical School, Istanbul, Turkey
| | - Duygu Erdil
- Department of Dermatology, Ağrı State Hospital, Ağrı, Turkey
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Seker M, Isen HC, Çevirme N, Aydın S, Bilici A, Bulut H, Yasin AI, Coban E, Demir T, Aliyev A, Kocyigit A, Turk HM. Role of Urotensin-2 in 5-Fluorouracil-Related Arterial Vasoconstriction in Cancer Patients. Oncol Res Treat 2018; 41:545-549. [PMID: 30121640 DOI: 10.1159/000490120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 05/16/2018] [Indexed: 12/29/2022]
Abstract
BACKGROUND The aim of this study was to identify the possible relationship of 5-fluorouracil (5-FU)-related arterial vasoconstriction with urotensin-2 (UT-2), which has a high potential as an endogenic vasoconstrictor. METHODS We assigned the patients to 1 of 3 groups. Patients in group 1 received a bolus of 5-FU, those in group 2 a continuous infusion (CI) of 5-FU, and those in group 3 no 5-FU, which was also a control group. Pre- and post-treatment UT-2 levels and brachial arterial diameters were measured and recorded in all patients. RESULTS 132 patients were included in the study. Pre- and post-treatment brachial artery diameters were similar in all groups: in group 1 (3.28 ± 0.52 vs. 3.25 ± 0.44 mm, p = 0.740), in group 2 (3.57 ± 0.47 vs. 3.46 ± 0.45 mm, p = 0.441) and in the control group (3.51 ± 0.52 vs. 3.25 ± 0.44 mm, p = 0.818). Pre- and post-treatment UT-2 levels were significantly different in each group: in group 1 (39.5 ± 30.9 vs. 56.7 ± 27.1 ng/ml, p = 0.0001), in group 2 (37.7 ± 33.7 vs. 62.5 ± 37.7 ng/ml, p = 0.0001) and in the control group (52.9 ± 40.2 vs. 60.8 ± 40.7 ng/ml, p = 0.006). CONCLUSION Our findings suggest that UT-2 has a high potential as a vasoconstrictor agent in our bodies and its level increases through a bolus or CI 5-FU. Increased UT-2 levels are likely to play a role in 5-FU-related cardiac toxicity pathogenesis.
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Dogan R, Sjostrand AP, Yenıgun A, Karatas E, Kocyigit A, Ozturan O. Influence of Ginkgo Biloba extract (EGb 761) on expression of IL-1 Beta, IL-6, TNF-alfa, HSP-70, HSF-1 and COX-2 after noise exposure in the rat cochlea. Auris Nasus Larynx 2018; 45:680-685. [DOI: 10.1016/j.anl.2017.09.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Revised: 08/30/2017] [Accepted: 09/21/2017] [Indexed: 10/18/2022]
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Tuncay S, Senol H, Guler EM, Ocal N, Secen H, Kocyigit A, Topcu G. Synthesis of Oleanolic Acid Analogues and Their Cytotoxic Effects on 3T3 Cell Line. Med Chem 2018; 14:617-625. [DOI: 10.2174/1573406414666180222094544] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 01/12/2018] [Accepted: 01/15/2018] [Indexed: 11/22/2022]
Affiliation(s)
- Salih Tuncay
- Department of Food Technology, Uskudar University, 34664 Uskudar, Istanbul, Turkey
| | - Halil Senol
- Department of Chemistry, Faculty of Science, Ataturk University, 25240 Erzurum, Turkey
| | - Eray Metin Guler
- Department of Medical Biochemistry, School of Medicine, Bezmialem Vakif University, 34093 Fatih, Istanbul, Turkey
| | - Nuket Ocal
- Department of Chemistry, Faculty of Art and Sciences, Yildiz Technical University, 34220, Esenler, Istanbul, Turkey
| | - Hasan Secen
- Department of Chemistry, Faculty of Science, Ataturk University, 25240 Erzurum, Turkey
| | - Abdurrahim Kocyigit
- Department of Medical Biochemistry, School of Medicine, Bezmialem Vakif University, 34093 Fatih, Istanbul, Turkey
| | - Gulacti Topcu
- Department of Pharmacognosy & Phytochemistry, Faculty of Pharmacy, Bezmialem Vakif University, 34093 Fatih, Istanbul, Turkey
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Hatiboglu MA, Kocyigit A, Guler EM, Akdur K, Nalli A, Karatas E, Tuzgen S. Thymoquinone Induces Apoptosis in B16-F10 Melanoma Cell Through Inhibition of p-STAT3 and Inhibits Tumor Growth in a Murine Intracerebral Melanoma Model. World Neurosurg 2018; 114:e182-e190. [DOI: 10.1016/j.wneu.2018.02.136] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Accepted: 02/23/2018] [Indexed: 11/16/2022]
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Günes-Bayir A, Kocyigit A, Güler EM. In vitro effects of two major phenolic compounds from the family Lamiaceae plants on the human gastric carcinoma cells. Toxicol Ind Health 2018; 34:525-539. [PMID: 29848188 DOI: 10.1177/0748233718761698] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Phenolic compounds of essential oils from the family Lamiaceae are commonly used substances in the food industry because of their flavouring, antimicrobial and antioxidant properties. In this context, it has become important to have healthy and safe products for consumers who are exposed to these phenolic compounds. The present study was aimed to investigate the toxic effects of carvacrol, thymol and their mixture on human gastric carcinoma (AGS) cells. Cells were analyzed after 24 h of exposure to different concentrations of carvacrol, thymol and their mixture by the ATP cell viability, 2',7' dichlorodihydrofluorescein diacetate (H2DCF-DA), reducte glutatione/oxide glutathione ((GSH)/GSSG-Glo) and comet assays. Apoptosis induction was studied by acridine orange/ethidium bromide staining and western blotting. Carvacrol, thymol and their mixture induced cytotoxicity, genotoxicity, apoptosis, increased reactive oxygen species (ROS) and decreased GSH levels after 24 h of their exposure in a dose-dependent manner. A close negative relationship was found between cell viability and ROS generation. We examined dose-dependent cytotoxic effects of carvacrol, thymol and their mixture in human AGS cells. Increased intracellular ROS causes oxidative stress in cells. The results indicated that these compounds should be used carefully in the food industry.
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Affiliation(s)
- Ayse Günes-Bayir
- 1 Faculty of Health Sciences, Department of Nutrition and Dietetics, Bezmialem Vakif University, Istanbul, Turkey
| | - Abdurrahim Kocyigit
- 2 Faculty of Medicine, Department of Medical Biochemistry, Bezmialem Vakif University, Istanbul, Turkey
| | - Eray Metin Güler
- 2 Faculty of Medicine, Department of Medical Biochemistry, Bezmialem Vakif University, Istanbul, Turkey
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Dogan EE, Aydın MŞ, Güler EM, Kocyigit A, Gursu M, Seker M, Kazancioglu R. SP057EFFECTS OF PROXEED PLUS IN THE PREVENTION AND TREATMENT OF CISPLATIN NEPHROTOXICITY: AN EXPERIMENTAL RAT STUDY. Nephrol Dial Transplant 2018. [DOI: 10.1093/ndt/gfy104.sp057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Elif Ece Dogan
- Internal Medicine, Bayrampaşa State Hospital, Istanbul, Turkey
| | - Mehmet Şerif Aydın
- Department of Histology and Embryology, Medipol University, Regenerative and Restorative Medicine Research Center, Istanbul, Turkey
| | - Eray Metin Güler
- Department of Biochemistry, Bezmialem Vakif University, Istanbul, Turkey
| | | | - Meltem Gursu
- Department of Nephrology, Bezmialem Vakif University, Istanbul, Turkey
| | - Mesut Seker
- Department of Oncology, Bezmialem Vakif University, Istanbul, Turkey
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