Scopus İndeksli Yayınlar Koleksiyonu

Permanent URI for this collectionhttps://hdl.handle.net/20.500.14627/7

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  • Article
    Citation - Scopus: 4
    Dodder (Cuscuta Sp.) Extract Ameliorates Liver Fibrosis in Bile Duct-Ligated Rats
    (Istanbul University Press, 2022) Albayrak, O.; Ozbeyli, D.; Sen, A.; Cevik, O.; Erdogan, O.; Ercan, F.; Sener, G.; Ede-pazarbasi, Seren
    Objective: The aim is to examine the possible protective effect of Cuscuta sp. extract against liver damage induced by biliary obstruction in rats. Materials and Methods: To induce biliary obstruction, the bile duct ligation (BDL) method was used. Sprague Dawley rats were allocated to 4 groups: Control (C), Cuscuta (CUS), bile duct ligation (BDL), and bile duct ligation + Cuscuta (BDL+CUS). Control and BDL rats were given physiological saline (SF), while CUS and BDL+CUS groups were administered 250 mg/ kg of Cuscuta extract by oral gavage. At the end of 28th day, the rats were decapitated, serum and tissue samples were collected, and aspartate aminotransferase (AST), alanine transaminase (ALT), and direct and total bilirubin (DB and TB) levels were determined in blood samples. In liver tissues, transforming growth factor-β (TGF-β), 8-hydroxyguanosine (8-OHdG), hydroxyproline, and sodium-potassium ATPase (Na+/K+-ATPase) levels were determined. Results: Serum samples of rats with cholestasis had high ALT, AST, DB, and TB levels, while TGF-β, 8-OHdG, and hydroxyproline concentrations were found to be significantly high in tissues. Hepatic Na+/K+-ATPase levels were decreased through biliary obstruction. Biochemical parameters were drastically reversed by Cuscuta care; also, this was supported histologically. Conclusion: Results showed that Cuscuta extract, through its antioxidant and anti-inflammatory properties, provided protection against oxidative injury by biliary obstruction. Also, these results confirm the traditional use of Cuscuta sp. as hepatoprotective. © Ankara Medical Journal.All rights reserved.
  • Article
    Citation - Scopus: 6
    Myrtus Communis L. Extract Ameliorates High Fat Diet Induced Kidney and Bladder Damage by Inhibiting Oxidative Stress and Inflammation
    (Istanbul University Press, 2022) Mustafaoglu, F.K.; Ertas, B.; Sen, A.; Akakin, D.; Sener, G.; Ercan, F.
    Objective: Obesity is associated with many diseases, including urinary system disorders such as chronic kidney disease and overactive bladder syndrome. Myrtus communis L. (MC) extract has been reported to have antioxidant and anti-inflammatory effects. The aim of this study was to investigate the protective effects of MC extract on high-fat diet (HFD)-induced kidney and bladder damage. Materials and Methods: Wistar albino male rats were divided into three experimental groups: control, HFD and HFD+MC. Experimental groups were fed a standard diet (control group) or HFD (HFD and HFD+MC groups) for 16 weeks. MC extract (100 mg/kg) was administered to the HFD+MC group orally during the last 4 weeks (5 days/week) of the experiment. High-density lipoprotein, total cholesterol, triglyceride and leptin levels were measured in blood serum. Tissue malondialdehyde (MDA), glutathione (GSH), 8-hydroxy-2'-deoxyguanosine (8-OHdG) and myeloperoxidase (MPO) levels were evaluated biochemically. Kidney and bladder morphology, NADPH oxidase-2 (NOX-2) and nuclear factor-kappa B (NF-ҡB)-positive and apoptotic cells were evaluated histologically. Results: Lipid profiles altered and leptin levels increased in blood serum. MDA, 8-OHdG and MPO levels increased and GSH level decreased in kidney and bladder in the HFD group. Moreover, degenerated kidney and bladder morphology, increased NOX-2 and NF-ҡB-positive and apoptotic cells were observed in this group. All of these biochemical and histological parameters were ameliorated in the HFD+MC group. Conclusion: HFD-induced obesity causes kidney and bladder damage by oxidative and inflammatory processes. MC extract may reduce oxidative stress and inflammation and play a protective role in obesity-related kidney and bladder damage. © 2022 by the Author(s).
  • Article
    Citation - WoS: 3
    Citation - Scopus: 2
    Morphological and Biochemical Investigation of the Protective Effects of Panax Ginseng on Methotrexate-Induced Testicular Damage
    (Istanbul Univ, 2023) Karakaya-Cimen, Fatma Bedia; Macit, Caglar; Sivas, Guzin Goksun; Akbay, Tugba Tunali; Sener, Goksel; Ercan, Feriha; Cımen, Fatma Bedia Karakaya
    Objective: Methotrexate (MTX) is a chemotherapeutic agent that causes testicular toxicity used in the cure of various types of cancer. The anti-oxidant and anti-cancer effects of Panax ginseng (PxG) have been reported in both experimental and clinical studies. This study aims to examine the healing effect of PxG on testicular damage induced by MTX. Materials and Methods: Sprague Dawley male rats (8-week-olds) were used in the study. A single dose ofMTXdissolved in saline (20 mg/kg) was given to MTX and MTX+PxG groups by intraperitoneal injection. PxG dissolved in saline (100 mg/kg) was given by orogastric gavage once a day for 5 days to the MTX+PxG group. Saline was given to the control and MTX groups orally during the experiments. After decapitation, the testis sampleswere obtained. Seminiferous tubules and basement membranewere evaluated histopathologically. Seminiferous tubule diameter and germinal epithelium thickness were measured. Furthermore, oxidative stress parameters such as malondialdehyde, glutathione, superoxide dismutase, and glutathione-S-transferase were measured. Results: MTX treatment caused seminiferous tubule degeneration with a decrease in Johnsen's score, the seminiferous tubule's diameter, and the germinal epithelium's thickness. Parallel with the histopathological results increased testicular oxidative stress with an increase in malondialdehyde level and a decrease of endogenous anti-oxidant activity with a decrease in glutathione level and glutathione-S-transferase and superoxide dismutase activities. PxG treatment improved these histological and biochemical parameters in MTX-induced testis cytotoxicity. Conclusion: MTX treatment causes testicular damage via the oxidative processes. PxG treatment ameliorates MTX-induced testicular damage by inhibiting oxidative stress.
  • Article
    Citation - Scopus: 1
    A Systematic Review And Meta-analysis Of The Prevalence, Risk Factors, Agents And Laboratory Diagnosis Of Vulvovaginal Candidiasis İn Türkiye;
    (Refik Saydam National Public Health Agency (RSNPHA), 2024) Kilbaş, İ.; Kilbaş, E.P.K.; Çİftçİ, İ.H.
    Objective: Vulvovaginal candidiasis (VVC) is the most common superficial mycosis among women, and it is estimated that 75% of women experience at least one in their lifetime, and about 40-50% have a second exposure. This study aims to determine the prevalence, risk factors, etiological factors and laboratory diagnosis of VVC in Türkiye. Methods: In the study, original scientific articles for the reporting of VVC epidemiological features published in English and Turkish languages in national and international databases (PubMed, Embase, Scopus, Google Scholar, Web of Science and Turkish Medline) between January 1995 and December 2021 were searched. Electronic databases were searched using various combinations of “vaginal yeast infection”, “vaginal candidiasis”, “vulvovaginal candidiasis Turkey”, “candidal vaginitis”, “Candida vaginitis”, “vaginal candidosis”, “Candida species”, “epidemiology” key terms. Results: The mean prevalence of VVC in adult women was found to be 57.91% in all of the 28 included studies, and 68.21% in the 2-18 age group. Considering the causative distribution, the most common Candida albicans (54.76%), Candida glabrata (24.04%), other Candida species (12.29%), Candida krusei (3.68%), Candida kefyr (3.37%), and Candida tropicalis (2.07%) positivity has been reported. In the included studies, the most common predisposing factors of the patients were pregnancy (35.71%) and diabetes (35.71%). When the articles were examined according to the year they were published and the provinces, it was seen that the prevalence of Candida did not differ significantly (p>0.05). In the studies, VITEK®2 (bioMérieux, Marcy l’Etoile, France) automatic identification system (15), Germ tube (7) and CHROMagar (7) diagnostic methods were used to identify strains. As a result of the meta analysis, it was determined that there was a high level of heterogeneity among studies (I2=95.28). Conclusion: As a result of our meta-analysis study, the prevalence of VVC was found to be high in women and children in Turkey. In addition, it was determined that non-albicans species increased in the etiology of VVK. It has been observed that the incidence of C. glabrata species in the etiology of VVC has increased since 1999. Considering that VVK infection increases the susceptibility to other sexually transmitted diseases, as well as the risk of preterm birth and congenital cutaneous candidiasis in pregnant women, it is essential to raise awareness of patients on issues such as treatment follow-up and protection from the disease. © (2024), (Refik Saydam National Public Health Agency (RSNPHA)). All Rights Reserved.