Person: ŞEN, ALİ
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ŞEN
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ALİ
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Publication Open Access The antioxidant, anti-inflammatory and antiplatelet effects of Ribes rubrum L. fruit extract in the diabetic rats(2022-03-01) ŞENER, AZİZE; ŞEKERLER, TURGUT; ŞEN, ALİ; Gülmez G., Şen A., Şekerler T., Algül F. K., Çilingir-Kaya Ö. T., Şener A.AbstractThe prothrombotic and inflammatory state plays a significant role in the occurrence of cardiovascular complications in type 2 diabetes mellitus. In this study, the antidiabetic, anti-inflammatory, and antiplatelet potentials of the extracts obtained fromRibes rubrumwere investigated. The antidiabetic, anti-inflammatory, and antioxidant activities of the ethanol and water extracts ofR. rubrumwere evaluated by in vitro methods. The total phenolic and flavonoid contents were also determined. The experimental diabetes model in rats was induced with streptozotocin (STZ). After hyperglycemia occurred, the ethanol extracts ofR. rubrum(RRE, at 100mg/kg and 500mg/kg doses) were administered to the treatment groups for 14days. Blood glucose, lipid profile, plasma, and pancreas tumor necrosis factor-α (TNF-α) levels were determined and compared at the end of the experiments. P-selectin levels and mitochondrial membrane polarization (MMP) of platelets were also measured. In vitro study, the RRE showed potent anti-inflammatory activity. Administration of RRE (at 100mg/kg doses) to diabetic rats lowered blood glucose level insignificantly. The results showed that there was an increment in levels of TNF-α in plasma and pancreas tissue of the diabetic group compared to the control group.R. rubrumextract regulated and normalized their levels in plasma and pancreatic tissue. RRE at both doses significantly decreased platelet P-selectin levels and prevented STZ-induced loss of MMP in platelets. The results of current research indicate that RRE extract has potent anti-platelet and anti-inflammatory effects and may be beneficial in preventing diabetic complications.Practical applicationsHyperglycemia causes dyslipidemia, advanced oxidative stress, platelet activation, and inflammation in diabetes mellitus. Plants with various medicinal properties are of worldwide interest for the treatment of diseases due to their biological activities. In this study, the antidiabetic, anti-inflammatory, and antioxidant effects of extracts ofRibes rubrum(%100 ethanol, 50% ethanol, water) were evaluated by in vitro and in vivo methods. The diabetes model was induced with streptozotocin (STZ). The rats were divided into control, diabetic control,R. rubrum-100mg/kg, andR. rubrum-500mg/kg doses groups. Blood glucose levels, tumor necrosis factor-α (TNF-α), platelet P-selectin levels, mitochondrial membrane polarization of platelets were examined. The present study has shown thatR. rubrumhas anti-inflammatory and antiplatelet activity.R. rubrummay be beneficial in the prevention and treatment of DM complications due to its anti-inflammatory and antithrombotic effects.Publication Open Access Ethanol extract of Cotinus coggygria leaves accelerates wound healing process in diabetic rats(TAYLOR & FRANCIS LTD, 2016-11) ŞEN, ALİ; Aksoy, Halil; Sen, Ali; Sancar, Mesut; Sekerler, Turgut; Akakin, Dilek; Bitis, Leyla; Uras, Fikriye; Kultur, Sukran; Izzettin, Fikret VehbiContext:Cotinus coggygria Scop. (Anacardiaceae) leaves that were used as wound healing in traditional Balkan and Anatolian folk medicine, could be potentially effective in treating diabetic wounds.Objective: This study investigates biochemical and histological effects of ethanol extract of C. coggygria (CCE) on excision wound model in diabetic rats.Materials and methods: This study was conducted on diabetic Wistar albino rats, which were injected by a single dose (50mg/kg i.p.) streptozotocin. Afterward an excision wound model was created in all animals; diabetic control rats were applied topically simple ointment and diabetic treatment rats were applied topically 5% (w/w) ointment with CC, once a day during the experimental period. Malondialdehyde, glutathione and hydroxyproline levels in wound tissues were investigated at the end of 3rd, 7th, and 14th days. Histopathological examination was also performed.Results: Hydroxyproline content was significantly increased in the CCE treated group versus control after the 3rd and 7th days (15.33 versus 11.83; 19.67 versus 15.67mg/g, p<0.05; respectively). A statistically significant elevation in glutathione at the end of 3rd, 7th, and 14th days (5.13 versus 1.58, p<0.05; 4.72 versus 1.88, p<0.05; 3.83 versus 1.88mol/g, p<0.05, respectively) and a statistically significant decrease in malondialdehyde level at the end of 7th day (4.49 versus 1.48nmol/g, p<0.05) were determined in the treated group versus control group. These results were also supported by histological analyses.Discussion and conclusion: These findings indicate that CCE accelerated the cutaneous wound healing process in diabetic wounds, in confirmation of its traditional use.Publication Open Access The Effect of Algan Hemostatic Agent (AHA) on Wound Healing(MARMARA UNIV, INST HEALTH SCIENCES, 2020-09-04) ŞEN, ALİ; Aksoy, Halil; Sener, Azize; Akakin, Dilek; Sen, Ali; Ozakpinar, Ozlem Bingol; Ozcan, Sinemcan; Simsek, Ahmet Kaan; Sekerler, Turgut; Guzel, Sevket Ergun; Midi, AhmetObjective: The Algan Hemostatic Agent (AHA) is a novel herbal originated blood stopper. The aim of this study is to investigate the effect of AHA on wound healing on excisional wound model in rats. Methods: In this study, 54 adult Wistar albino rats were used. Rats were divided into 3 groups (saline, Madecassol (R) and AHA). Each group was then divided into 3 subgroups as the 3rd, 7th and 14th days. Two wounds were created in the dorsal thoracic region of the rats. One of the lesions was used for histopathological examinations and the other for hydroxyproline measurement. In order to evaluate the wound healing, wound area were measured during the whole treatment period and animals were sacrificed at the end of the 3rd, 7th and 14th days and tissue samples were taken for the determination of hydroxyproline levels. Results: AHA treatment did not cause significant difference in hydroxyproline level on days 3, 7, 14. The contraction percentage of wound area was higher in the AHA group on day 7 than that of the control group. However, the difference was not statistically significant (p>0.05). On days 3 and 14, no significant difference was detected in the contraction percentage of wound area between the control and the AHA groups. AHA and Madecassol (R) results of epidermis regeneration on the 14th day, neutrophil infiltration on the 7th day and edema on the 3rd, 7th and 14th days were different in terms of histopathological parameters compared to the control group. Conclusion: Despite good histological findings, AHA did not significantly accelerate wound healing, but did not adversely affect wound healing as well.Publication Open Access In vitro antihepatocellular carcinoma activity of secondary metabolites of Centaurea kilaea Boiss(MARMARA UNIV, 2020-07-16) ŞEN, ALİ; Sekerler, Turgut; Sen, Ali; Bitis, Leyla; Sener, AzizeThe aim of this study was to investigate in vitro cytotoxic effects of previously isolated compounds (taraxasterol, salvigenin, 3'-O-methyleupatorin, oleanolic acid, jaceosidin and pectolinarigenin) from Centaurea kilaea chloroform extract on hepatocellular carcinoma cell lines, HepG2 and Hep3B, as well as to evaluate the effect on the normal cell line, NIH3T3. In vitro antihepatocellular carcinoma activity of compounds was assessed by MTT method. All compounds except pectolinarigenin caused more inhibition on HepG2 rather than Hep3B. Among these compounds, it was found that Jaseosidin had the highest anticancer activity with IC50 values of 137.66 mu g/mL and 147.66 mu g/mL on the HepG2 and Hep3B cell lines, respectively. 3'-O- methyleupatorin showed the second highest cytotoxicity with IC50 values of 151.98 mu g/mL and 159.24 mu g/mL against the HepG2 and Hep3B cell lines, respectively. The results indicated that Jaseosidin and 3'-O-methyleupatorin, had the best antiproliferative activity against hepatocellular carcinoma cell lines. Also, according to our best knowledge, this study is first report on antihepatocellular carcinoma activity of Jaseosidin and 3'-O-methyleupatorin.Publication Open Access The antioxidant, anti-inflammatory, and antiplatelet effects of Ribes rubrum L. fruit extract in the diabetic rats(2022-07-01) KAYA, ÖZLEM TUĞÇE; ŞEKERLER, TURGUT; ŞEN, ALİ; Gulmez G., ŞEN A., ŞEKERLER T., Algul F. K., KAYA Ö. T., Sener A.The prothrombotic and inflammatory state plays a significant role in the occurrence of cardiovascular complications in type 2 diabetes mellitus. In this study, the antidiabetic, anti-inflammatory, and antiplatelet potentials of the extracts obtained from Ribes rubrum were investigated. The antidiabetic, anti-inflammatory, and antioxidant activities of the ethanol and water extracts of R. rubrum were evaluated by in vitro methods. The total phenolic and flavonoid contents were also determined. The experimental diabetes model in rats was induced with streptozotocin (STZ). After hyperglycemia occurred, the ethanol extracts of R. rubrum (RRE, at 100 mg/kg and 500 mg/kg doses) were administered to the treatment groups for 14 days. Blood glucose, lipid profile, plasma, and pancreas tumor necrosis factor-alpha (TNF-alpha) levels were determined and compared at the end of the experiments. P-selectin levels and mitochondrial membrane polarization (MMP) of platelets were also measured. In vitro study, the RRE showed potent anti-inflammatory activity. Administration of RRE (at 100 mg/kg doses) to diabetic rats lowered blood glucose level insignificantly. The results showed that there was an increment in levels of TNF-alpha in plasma and pancreas tissue of the diabetic group compared to the control group. R. rubrum extract regulated and normalized their levels in plasma and pancreatic tissue. RRE at both doses significantly decreased platelet P-selectin levels and prevented STZ-induced loss of MMP in platelets. The results of current research indicate that RRE extract has potent anti-platelet and anti-inflammatory effects and may be beneficial in preventing diabetic complications. Practical applications Hyperglycemia causes dyslipidemia, advanced oxidative stress, platelet activation, and inflammation in diabetes mellitus. Plants with various medicinal properties are of worldwide interest for the treatment of diseases due to their biological activities. In this study, the antidiabetic, anti-inflammatory, and antioxidant effects of extracts of Ribes rubrum (%100 ethanol, 50% ethanol, water) were evaluated by in vitro and in vivo methods. The diabetes model was induced with streptozotocin (STZ). The rats were divided into control, diabetic control, R. rubrum-100 mg/kg, and R. rubrum-500 mg/kg doses groups. Blood glucose levels, tumor necrosis factor-alpha (TNF-alpha), platelet P-selectin levels, mitochondrial membrane polarization of platelets were examined. The present study has shown that R. rubrum has anti-inflammatory and antiplatelet activity. R. rubrum may be beneficial in the prevention and treatment of DM complications due to its anti-inflammatory and antithrombotic effects.