12 results on '"Dinc K"'
Search Results
2. The Effect of Cerebrolysin on Ischemia Reperfusion-Induced Oxidative and Inflammatory Ovarian Damage in Rats
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Ozer, M., Ince, S., Suleyman, B., Mammadov, R., Bulent Yavuzer, Bulut, S., Akbas, N., Mokhtare, B., Mendil, A. S., Dinc, K., Borekci, B., and Suleyman, H.
- Abstract
© 2022, Colegio de Farmaceuticos de la Provincia de Buenos Aires. All rights reserved.SUMMARY. Ovarian ischemia-reperfusion (I/R) injury develops due to oxidative stress and inflammation that occurs when tissue is deprived of oxygen. Ovarian I/R damage also causes infertility. The aim of this study is to see the effect of ovarian I/R damage on reproductive functions and to determine the protection of antioxidant and anti-inflammatory cerebrolysin in possible damage. Albino Wistar-type female rats were divided into sham operation (SG), ischemia-reperfusion (IR) and cerebrolysin+ischemia-reperfusion (CIR) groups. After I/R application with cerebrolysin, the ovaries of six animals from each group were taken and biochemical and histopathological examinations were performed. Six animals from each remaining group were left to breed. Our test results showed that cerebrolysin decreased I/R-related oxidant, proinflammatory cytokine and tissue damage and increased antioxidant levels. In addition, cerebrolysis significantly inhibited the delay of the maternity period. These findings indicate that cerebrolysin may be helpful in the treatment of I/R-related ovarian damage and infertility.
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- 2022
3. Dynamic thiol/disulphide homeostasis and ischemic modified albumin levels in isolated oligohydramnios
- Author
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Kiremitli, T., primary, Kiremitli, S., additional, Erel, O., additional, Oguz, E., additional, Dinc, K., additional, Nayki, U., additional, Nayki, C., additional, Turkler, C., additional, and Kirkinci, A., additional
- Published
- 2021
- Full Text
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4. Fertility protective effect of taxifolin in cisplatin-induced ovarian damage.
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OZYURT, R., CELIK, N., SULEYMAN, Z., CAGIRAN, F., KALI, Z., GURKAN, N., ALTINDAG, F., BULUT, S., SARIGUL, C., DINC, K., and SULEYMAN, H.
- Abstract
OBJECTIVE: The aim of our study was to investigate the protective effect of taxifolin on ovarian damage and reproductive dysfunction created by cisplatin administration. MATERIALS AND METHODS: A total of 36 albino Wistar female adult rats were equally divided into 3 groups as cisplatin administered only (CIS), taxifolin+cisplatin (T+C) and healthy control group (HG). Taxifolin 50 mg/kg was administered orally by gavage in the T+C (n=12) group. In the HG (n=12) and CIS (n=12) groups, the same volume of distilled water as a solvent was orally administered. One hour after administration of taxifolin or distilled water, animals in the T+C and CIS groups were injected with cisplatin at a dose of 2.5 mg/kg intraperitoneally. This procedure was repeated once a day for 14 days. Six animals from each group were sacrificed on day 15, and their ovaries were removed for histopathological and biochemical analysis. Ovarian tissue malondialdehyde (MDA), total Glutathione (tGSH), Nuclear Factor-Kappa B (NF-kB), Tumor Necrosis Factor-α (TNF-α), Interleukin 1 beta (IL-1β), and Interleukin-6 (IL-6) levels were measured. The remaining animals (n=6 in each group) were kept in the laboratory with mature male rats for two months to breed. RESULTS: CIS administration led to an increase in inflammatory molecules and membrane lipid peroxidation products, and decreased the synthesis of antioxidant molecules. Compared to the CIS group, the ovarian tissue MDA, NF-kB, TNF-α, IL-1β and IL-6 levels were found to be significantly decreased in the T+C group (p<0.001 for all comparisons). On the other hand, the tGSH levels of the T+C group were significantly higher than the CIS group (p<0.001). Milder ovarian necrosis, fibrosis and follicle damage were detected in animals which were given taxifolin. Four out of the six rats (67%) treated with taxifolin gave birth within 27 days. CONCLUSIONS: We demonstrated, for the first time, that taxifolin ameliorates cisplatin-induced ovarian injury by decreasing MDA and proinflammatory cytokines and increasing the antioxidant enzyme. The fact that more than half of the animals receiving taxifolin became pregnant suggests that the cytoprotective effect of taxifolin is strong enough to preserve fertility [ABSTRACT FROM AUTHOR]
- Published
- 2022
5. The negative effect of desflurane on reproductive capacity in female rats
- Author
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Turkler, C., primary, Kulhan, M., additional, Kulhan, N. G., additional, Onat, T., additional, Yildirim, E., additional, Kaplan, S., additional, Suleyman, H., additional, and Dinc, K., additional
- Published
- 2020
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6. The control of fluoride concentration in ETI Aluminyum Bayer refinery liquor.
- Author
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Savkilioglu E., Light metals 2013 San Antonia, Texas 03-Mar-1307-Mar-13, Avcu S., Baygul M., Carton C., Dinc K., Ertugral S., Savkilioglu E., Light metals 2013 San Antonia, Texas 03-Mar-1307-Mar-13, Avcu S., Baygul M., Carton C., Dinc K., and Ertugral S.
- Abstract
An increase in production capacity was initiated at the ETI Aluminyum plant in Turkey involving increasing the liquor caustic concentration in the evaporator discharge to increase alumina dissolution during digestion, but excessive and process-inhibiting scale was observed to be formed in the discharge pumps and pipes. Investigations showed that the cause was the presence of fluoride in the process liquor which was precipitated as NaF under the high caustic concentrations. Test work was carried out to investigate the NaF solubility curve in synthetic caustic solution and the effects of temperature on the solubility. Tests were also conducted using a rotary evaporator and the liquor phase and precipitates were analysed and the turbidity of the liquor was measured. The results were used to develop a process in which the NaF was precipitated and settled out from a liquor side stream using thickeners. NaF scale formation on the evaporator components has been reduced in test tank lines, allowing the caustic concentration to be increased to above previous limits., An increase in production capacity was initiated at the ETI Aluminyum plant in Turkey involving increasing the liquor caustic concentration in the evaporator discharge to increase alumina dissolution during digestion, but excessive and process-inhibiting scale was observed to be formed in the discharge pumps and pipes. Investigations showed that the cause was the presence of fluoride in the process liquor which was precipitated as NaF under the high caustic concentrations. Test work was carried out to investigate the NaF solubility curve in synthetic caustic solution and the effects of temperature on the solubility. Tests were also conducted using a rotary evaporator and the liquor phase and precipitates were analysed and the turbidity of the liquor was measured. The results were used to develop a process in which the NaF was precipitated and settled out from a liquor side stream using thickeners. NaF scale formation on the evaporator components has been reduced in test tank lines, allowing the caustic concentration to be increased to above previous limits.
- Published
- 2013
7. Modified Dead-Alive Test for the assessment of semantic and episodic memory performance of older patients with neurocognitive disorder.
- Author
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Ozel-Kizil ET, Bastug G, Kirici S, Dinc K, and Gursay M
- Abstract
The aim of this study is to provide a test that allows for evaluation of both semantic memory (SM) and episodic memory (EM). The study sought to examine psychometric characteristics of the Modified Dead-Alive Test (M-DAT) in patients with neurocognitive disorders and the healthy elderly (HE). The M-DAT consists of 45 names of celebrities who have died in the remote past (15), died in the last five years (15), and are still alive (15), and participants are asked whether they are alive or dead. The M-DAT performances of patients with Diagnostic and Statistical Manual of Mental Disorders-5 (DSM-5) major neurocognitive disorder due to Alzheimer's Disease (MND-AD) ( n = 69) and patients with minor neurocognitive disorder (MiND) ( n = 27) who were admitted to a geriatric psychiatry clinic and healthy controls (HC) ( n = 29) were compared. Age and level of education were taken as covariates, and an analysis of covariance (ANCOVA) was performed since the MND-AD group was older and less educated. The MND-AD group had lower performance in EM and SM scores of the M-DAT. M-DAT failed to differentiate between MiND and HE. Both subscale scores of the M-DAT were associated with other neuropsychological test performances as well as the level of education. The results suggest that M-DAT is a valid and reliable tool that examines both EM and SM performances. M-DAT is an alternative for the assessment of SM evaluated by verbal fluency or naming tests. Evaluating EM and SM together is an important advantage; however, M-DAT is influenced by education, and the items require updating.
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- 2024
- Full Text
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8. The effect of carvacrol on the proinflammatory cytokines, histology, and fertility outcome of cisplatin-related ovarian change in a rat model.
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Dinc K, Ozyurt R, Coban TA, Yazici GN, Suleyman Z, Yavuzer B, and Suleyman H
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- Humans, Rats, Female, Male, Animals, Cisplatin therapeutic use, Cytokines adverse effects, Oxidative Stress, Fertility, Primary Ovarian Insufficiency chemically induced, Primary Ovarian Insufficiency drug therapy, Infertility, Female chemically induced, Infertility, Female drug therapy
- Abstract
Objective: In women, agents used in chemotherapy treatment have side effects such as accelerating follicular depletion and early menopause. Thus, cytotoxic treatments may cause various effects ranging from partial damage to the ovary to premature ovarian failure (POI) and infertility. This study aimed to investigate the protective effect of carvacrol on cisplatin (CIS)-induced reproductive toxicity in female rats., Materials and Methods: The animals were divided to four groups; a healthy group (HG), administered only cisplatin 2.5 mg/kg (CIS); cisplatin 2.5 mg/kg + carvacrol mg/kg (CC-50), and cisplatin 2.5 mg/kg + carvacrol 100 mg/kg (CC-100). In this study, the CC-50 and CC-100 groups were injected with carvacrol at 50 and 100 mg/kg intraperitoneally (IP). The CIS and HG groupswere administered normal saline as a solvent in the same way. One hour afterwardthe CC-50 and CC-100 groups were injected with cisplatin at 2.5 mg/kg IP. This procedure was continued once a day for 14 days. At the end of this period, six rats from each group were euthanized with high-dose anaesthesia. Biochemical (oxidant-antioxidant and proinflammatory cytokines) and histopathological examinations were performed on the right ovarian tissue removed from the dead rats. The remaining (n = 6 in each group) animals were kept in the laboratory with mature male rats for two months for breeding. Rats that didn't give birth within two months were considered infertile. A one-way ANOVA test was used for the biochemical analysis, the a Kruskal Wallis test was used for the histopathological analysis., Results: It has been observed that cisplatine causes oxidative stress and inflammatory damage in the ovarian tissue of animals and ultimately causes infertility due to this oxidative stress. While carvacrol significantly suppressed cisplatin-related oxidative stress in ovarian tissue at the 50 and 100 mg/kg doses, it could suppress proinflammatory cytokine increase only at thecytokine increase only at the 100 mg/kg dose. In addition, carvacrol significantly reduced the development of cisplatin-related infertility (from 0 to 83.3%) at a dose of 100 mg/kg., Conclusion: These findings suggest that carvacrol at high doses can reduce the harmful effects of cisplatin on the ovary and improve ovarian reserve in rats., Competing Interests: Declaration of competing interest The authors have no conflicts of interest relevant to this article., (Copyright © 2023. Published by Elsevier B.V.)
- Published
- 2023
- Full Text
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9. Novel marker to predict rupture risk in tubal ectopic pregnancies: the systemic immune-inflammation index.
- Author
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Dinc K and Issın G
- Subjects
- Pregnancy, Female, Humans, Biomarkers, ROC Curve, Inflammation, Pregnancy, Tubal diagnosis, Pregnancy, Ectopic diagnosis
- Abstract
Objectives: Ectopic pregnancy is a life-threatening condition; delaying treatment can result in mortality or serious complications. Identification of a biomarker that can predict tubal rupture may be helpful for guiding treatment. In this study, we evaluated the association between serum β-hCG, biochemical markers, Systemic Immunity-inflammation Index (SII) score, and the trophoblastic invasion stage., Material and Methods: Tubal pregnancy was classified into three groups based on the depth of trophoblastic infiltration: stage I - limited to the mucosa; stage II - invaded the muscular layer, and stage III - invaded the serosa/subserosa of the tuba uterine. The association between groups, serum β-hCG, biochemical markers, and the SII score were assessed., Results: There was no significant difference between the groups, hemoglobin, platelet count, MPV, RDW, NLR or PLR values (p > 0.05). A ROC analysis was performed to evaluate the accuracy of serum β-hCG predictions for infiltration level. At a 95% confidence interval upper limit, cut-off value of the serum β-hCG that best predicted stage III trophoblastic infiltration, was 2799 mIU/mL, with 78.9% sensitivity, 53.8% specificity (positive predictive value was 71.4%, and a negative predictive value was 63.6%). Moreover, ROC curve analysis showed that The SII value of 792 was the best predictor of trophoblastic infiltration at stage III, with a sensitivity of 92.3% and a specificity of 63.1%., Conclusions: A linear relationship exists between depth of trophoblastic infiltration and serum β-hCG and the SII were observed. These findings suggested that the SII score can be used for predicting tubal ectopic pregnancy rupture.
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- 2023
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10. Does being infected with SARS-CoV-2 in the first-trimester increase the risk of miscarriage?
- Author
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Kiremitli S, Kiremitli T, Ulug P, Kirkinci A, Kurnuc FZ, Yilmaz N, Dinc K, Yilmaz BK, Gul OI, and Uzel K
- Subjects
- Female, Humans, Pregnancy, Pregnancy Trimester, First, SARS-CoV-2, Abortion, Spontaneous etiology, COVID-19 complications, Pregnancy Complications, Infectious diagnosis
- Abstract
Aim of this study is to investigate whether the risk of miscarriage increases in pregnant women who had COVID-19 in first trimester. Our study included 52 patients with SARS-CoV-2 infection detected by RT-PCR and 53 patients with negative RT-PCR test in samples taken with nasopharyngeal swab in the first trimester between March 1 and December 31, 2020. Complete abortion, incomplete abortion, blighted ovum, intrauterine exitus, biochemical pregnancies were accepted as in the miscarriage group (MG). Pregnant women with COVID-19 and control group were compared in terms of demographic data, miscarriage rate and laboratory results. Patients were divided into MG and ongoing pregnancy groups (OPG) and compared in terms of the diagnosed weeks, clinical findings, laboratory results, treatments, and hospitalization. While miscarriage was observed in 15 (28.8%) of pregnant women infected with SARS-CoV-2 in the first trimester, this number was 7 (13.2%) in the control group. While the common symptoms in the MG were cough (60%), fever (53.3%), shortness of breath (53.3%), and fatigue (46.7%) (p<0.05); asymptomatic patients (51.4%) were higher in the OPG (p<0.001). Hospitalized patients were 33.3% in the MG and 8.1% in the OPG (p=0.02). According to the results of our study, the risk of miscarriage increases in pregnant women infected with SARS-CoV-2 (especially in severe infection) in the first trimester.
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- 2022
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11. Are the body shape index, the body roundness index and waist-to-hip ratio better than BMI to predict recurrent pregnancy loss?
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Kiremitli T, Kiremitli S, Ulug P, Dinc K, Uzel K, and Arslan YK
- Abstract
Purpose: Etiology could not be determined in approximately 50% of recurrent pregnancy loss cases, and it was named unexpected recurrent pregnancy loss(URPL). A body shape index(ABSI), body roundness index(BRI), and waist-to-hip ratio(WtHR) are new indexes that are superior to BMI in showing body fat distribution. We aimed to investigate the potency of ABSI, BRI, and WtHR in URPL, their superiority to BMI, and their suitability for clinical use., Methods: One hundred and thirty-eight patients between the ages of 20-40 who applied to our hospital for URPL between January 2016 and December 31, 2020 were included in our study. Weight, height, waist circumference, and hip circumference were measured, and indexes were calculated. Differences between the URPL and control groups were calculated using the IBM SPSS program., Results: There was a significant difference between the two groups for BRI, ABSI, and WtHR values, while there was no significant difference in BMI. BRI(4.4 ± 1.7vs3.9 ± 1.5), ABSI(0.08 ± 0.005 vs 0.078 ± 0.004), and WtHR(0.84 ± 0.06vs0.82 ± 0.05) values were higher in the URPL group. ROC analysis showed us that BRI, ABSI, and WtHR have a diagnostic value for URPL( P < .05). When indexes were above the cutoff values, RPL risk increased 3.59 times in ABSI, 2.26 times in BRI, and 2.9 times in WtHR( P < .05)., Conclusions: The relationship between obesity and URPL can be explained more clearly by using effective indexes that show body fat distribution rather than BMI. Ethics committee approval was obtained from Erzincan Binali Yildirim University in 14.01.2021. Clinical Research Ethics Committee no: 01/01., Competing Interests: Tunay Kiremitli, Sevil Kiremitli, Pasa Ulug, Kemal Dinc, Kemine Uzel and Yusuf Kemal Arslan declare that they have no conflict of interest., (© 2021 The Authors. Reproductive Medicine and Biology published by John Wiley & Sons Australia, Ltd on behalf of Japan Society for Reproductive Medicine.)
- Published
- 2021
- Full Text
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12. The negative effect of desflurane on reproductive capacity in female rats.
- Author
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Turkler C, Kulhan M, Kulhan NG, Onat T, Yildirim E, Kaplan S, Suleyman H, and Dinc K
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- Animals, Antioxidants, Female, Glutathione Peroxidase, Malondialdehyde, Rats, Rats, Wistar, Superoxide Dismutase, Desflurane toxicity, Infertility, Female chemically induced, Oxidative Stress drug effects
- Abstract
Aim: The aim of this study was to determine the effect of desflurane on reproductive capacity in female rats through a study of biochemical evaluations., Method: After experimental procedure, the blood samples of female rats were collected, and the malondialdehyde, interleukin‑1‑beta, total glutathione and superoxide dismutase levels were measured to evaluate oxidative stress. In addition to biochemical evaluations, the reproductive performance of the experimental groups was also examined., Results: The results of our study demonstrated that in blood samples of desflurane‑treated groups of rats, the parameters indicating oxidative stress and inflammation increased, and antioxidant parameters decreased (p < 0.05). It was also proven that repeated desflurane doses caused infertility in female rats, prolonged the gestation period and reduced the number of offspring., Conclusions: This study showed that recurrent desflurane application can cause infertility problems through oxidative stress in female rats (Tab. 3, Fig. 1, Ref. 25).
- Published
- 2020
- Full Text
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