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    Biochemical, Histopathologic, and Genotoxic Effects of Ethanol Extract of Salvia hypargeia (Fisch. & Mey.) on Incisional and Excisional Wounded Diabetic Rats
    (Taylor & Francis Inc, 2021) Ozay, Yusuf; Guzel, Sevda; Ozkorkmaz, Ebru Gokalp; Kumas, Meltem; Uzun, Cosar; Yildirim, Zuhal; Celik, Ayla
    Purpose: Nonhealing wounds are a serious problem of diabetic patients. Salvia species are traditionally used for the treatment of wounds. The aim of the study was to investigate the effects of ointment prepared with ethanol extract obtained from the aerial parts of Salvia hypargeia, an endemic plant from Turkey, on diabetic rat incisional and excisional skin wounds. Materials and Methods: Male Wistar albino rats (n: 60) were divided into five groups. Diabetes was induced and two concentrations (0.5% and 1%) of the extract were used for ointments and applied on wounds for 7 and 14 days. Fito cream was chosen as a reference drug. Results: In excisional wounds, healing ratios of 0.5% (63.4% and 99.3%) and 1% (65.5% and 99.9%) S. hypargeia groups were higher compared to control (35.9% and 75.1%), and in incisional wounds, healing ratios of 0.5% (78.1% and 98.5%) and 1% (84.4% and 99.4%) S. hypargeia groups were higher compared to control (30.5% and 72.9%) (p < .01). Hydroxyproline (0.31 +/- 0.3 and 0.34 +/- 0.2) levels were lower and GSH (10.7 +/- 3.1 and 7.6 +/- 0.9) levels were higher in 0.5% and 1% S. hypargeia groups on the 14th day (p < .01). Histopathological results revealed re-epithelialization and formation of granulation tissue in all S. hypargeia groups. Genotoxicologic results indicated, GDI, DCP values, and MN frequency of 0.5% and 1% S. hypargeia groups did not reach to significant levels both on the 7 and 14 days. Conclusions: S. hypargeia may have a potential for therapeutic use in treatment and management of diabetic wounds with a successful topical application.
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    Comparison of testosterone, FSH, LH and E2 hormone levels in infertility suspected males with COVID-19 infection
    (Lippincott Williams & Wilkins, 2023) Ozkorkmaz, Ebru Gokalp; Basaran, Suereyya Ozdemir; Afsin, Muhamet; Asir, Firat
    Background: Coronavirus disease 2019 (COVID-19) is an infectious disease that has many adverse impacts on many systems including reproduction. The direct effects of COVID-19 on urogenital system are still open to argue. This study aimed to compare testosterone, follicle-stimulating hormone (FSH), luteinizing hormone (LH) and estradiol (E2) hormone levels in COVID-19 infected male individuals with infertility suspicion.Methods: One hundred five control (healthy) and 105 COVID-19 infected males aged between 20 to 54 years old were enrolled in the study. All patients were either diagnosed with primary or secondary infertility suspicion. The COVID-19 infection was diagnosed via reverse-transcription polymerase chain reaction test. Blood samples from patients were analyzed from the control and COVID-19 group to measure serum testosterone, FSH, LH, and E2 levels. Hormone levels were statistically compared between groups with the Independent T test.Results: In control and COVID-19 patients, no significance was determined for FSH and LH hormone values. Testosterone hormone were significantly decreased and E2 level was statistically increased in COVID-19 patients compared to that in the control group (P < .001).Conclusion: COVID-19 is a viral disease that affects organ including gonads. COVID-19 infection decreased testosterone levels and increased E2 levels, which leading to disorders in male and female reproductivity.
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    DOES GALLIC ACID HAVE A POTENTIAL REMEDIAL EFFECT IN EXPERIMENTAL CORROSIVE BURN INJURY TO THE ESOPHAGUS?
    (Sestre Milosrdnice Univ Hospital, 2023) Basuguy, Erol; Ozkorkmaz, Ebru Gokalp
    Gallic acid, acting as an antioxidant, anti -precipitant and cytoprotective agent, was used as a possible remedial natural component for treating experimentally induced esophageal burn. Wistar rats (n=24) were divided into three groups. Control group was given 1 mL 0.9% NaCl. Experimental esophageal burn was induced with 1 mL 40% NaOH application to the esophagus in groups 2 and 3. Gallic acid (R) (20 mg/kg) was administered to the treated group via oral gavage for 10 days. Removed tissues were fixed and paraffin blocks were prepared. Histopathological examination was performed after the sections had been stained with hematoxylin-eosin. Tumor necrosis factor alpha and caspase-3 antibodies were used on immunohistochemical analysis. In the esophageal burn group, necrosis, degeneration and numerous apoptotic cells, as well as intense inflammatory cell infiltration and fibrosis in the muscle layer were observed under light microscope. In the treated group, remodeling of epithelial cells with marked reduction in the connective tissue collagen content was observed, as well as marked reduction in the volume of collagen and abundance of inflammatory cells in blood vessels. Gallic acid treatment may help heal esophageal burns and prevent complications.
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    Effects of Carvacrol in an Experimentally Induced Esophageal Burn Model: Expression of VEGF and Caspase-3 Proteins
    (Taylor & Francis Inc, 2021) Zeytun, Hikmet; Ozkorkmaz, Ebru Gokalp
    Introduction: We investigated the therapeutic effects of carvacrol in an experimental esophageal burn rat model with immunohistochemical techniques. Materials and Methods: Three groups were included in this study, composed of eight Wistar albino rats each. The control group was given 1 mL 0.9% (wt/vol) NaCl; esophageal burns were induced in groups 2 and 3 by administration of 1 mL 40% NaOH in the distal 2 cm of the esophagus. The treatment group was administered 75 mg/kg carvacrol in 2 mL 0.9% NaCl for 10 days. After a routine histological examination of the tissues, sections were stained with vascular endothelial growth factor (VEGF) and caspase-3 for immunohistochemical analysis and were examined under a light microscope. Results: In the control group, there were regular cells in the cornified epithelial tissue and cylindrical cells in the basal layer, which faced toward the apical surface in the mitotic phase. The burn group displayed wide degeneration, necrosis, and abundant apoptotic cells in the epithelial tissue as well as intense inflammatory cell infiltration. In the treatment group, there was an increase in mitotic activity in the basal cells of the epithelial layer and degenerative changes, but a preserved epithelial layer and significant cornified structures. The treatment group showed positive caspase-3 expression in some apoptotic cells within the epithelial layer and in connective tissue, and there were only a small number of degenerated cells in the muscle layer. Additionally, in the treatment group, VEGF expression was evident in small numbers of inflammatory cells in the papillary region of the epithelium, and in dilated vascular endothelial cells. Conclusions: Carvacrol may contribute to a reduction in fibrosis by decreasing inflammation and preventing cell apoptosis.
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    Effects of methanolic extract of Verbascum inulifolium Hub.-Mor. on incisional and excisional skin wounds in diabetic and non-diabetic rats
    (Natl Inst Science Communication-Niscair, 2019) Ozay, Yusuf; Guzel, Sevda; Ozkorkmaz, Ebru Gokalp; Yildiz, Atilla; Yildirim, Zuhal; Erdogdu, Ibrahim Halil; Darcan, Sinan
    The genus Verbascum, commonly known as mullein, traditionally used in folk medicine, is known for its anti-inflammatory, antioxidant and antibacterial activities. Verbascum inulifolium Hub.-Mor. (Scrophulariaceae), is an endemic species from Turkey. Here, we examined the healing effect of methanol extract of the aerial parts of V. inulifolium on incisional and excisional skin wounds in diabetic and non-diabetic rats. Ointments of the extract were prepared in two concentrations (0.5 and 1% (w/w)) and applied topically on wound models once daily throughout for 7 and 14 days. During the experiments, wounds were visually observed, photographically documented and wound areas were measured. After 7 and 14 days treatments, animals were sacrificed and measurements of hydroxyproline level and biomechanical analysis were performed. Histopathology of the wound area was evaluated considering features of re-epithelialization, the granulation tissue thickness, angiogenesis, presence of inflammation, number of mast cells. Outcomes of this study revealed that the ethanolic extract of the aerial parts of V. inulifolium enhances the healing process of skin tissue in both non-diabetic and diabetic wounds. The best wound healing activity was observed in incisional wound treated with 0.5% (w/w) concentrated ointment (99.7%) and in excisional wound treated with 1% (w/w) concentrated ointment (98.1%) on day 14 according to macroscopic results.
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    Prolonged Simvastatin Treatment Provided a Decrease in Apoptotic, Inflammatory, and Oxidative Stress Markers in Ischemia-Reperfusion-Induced Acute Kidney Injury Model of Rats
    (Sci Printers & Publ Inc, 2021) Kafkasli, Alper; Ozkorkmaz, Ebru Gokalp
    OBJECTIVE: Ischemia-reperfusion (I/R) leads to reactive oxygen species formation and cell death in kidney tissue with injury and organ transplantation. Simvastatin (SIM) is an antioxidant, anti-inflammatory, and anticoagulant agent. Alterations in I/R-induced acute kidney injury model with SIM treatment were analyzed. STUDY DESIGN: Wistar rats (n=28) were grouped into Sham, Ischemia, I/R, and I/R+ SIM treated. Left rat kidney renal vessels were clamped for 60 minutes for ischemia, and the I/R group had 6 hours of reperfusion. 10 mg/kg SIM was given orally for 28 days. MDA, GSH, and MPO were analyzed. Kidney tissues were paraffin embedded, and primary antibodies TNF-alpha and caspase-3 were applied for immunohistochemistry. RESULTS: In the I/R group, intense inflammatory cell infiltration around the vessels and necrosis in the glomerular structures were observed. In the treated group, proximal and distal tubular cells were found to be close to normal. Immunoexpression of caspase-3 in the ischemia group was positive in degenerative glomeruli. In the treated group, TNF-alpha expression was negative in the glomerular structures. MDA and MPO levels were significantly increased in ischemia and I/R. CONCLUSION: We suggest that SIM treatment improved kidney tissue structure and function in a model of I/R injury.
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    Protective effects of passiflora incarnata on ovarian ischemia/reperfusion damage in rats with ovarian torsion
    (Turkish Assoc Trauma Emergency Surgery, 2023) Arslan, Serkan; Asir, Firat; Ozkorkmaz, Ebru Gokalp; Azizoglu, Mustafa; Basuguy, Erol; Okur, Mehmet Hanifi; Otcu, Serap Mutlu Ozcelik
    BACKGROUND: This study aimed to investigate whether Passiflora Incarnata (PI) has a protective effect against ischemia-reperfusion (IR)-induced oxidative and inflammatory ovarian damage. METHODS: The effects of PI on ovarian ischemia-reper fusion injury were investigated in female Wistar albino rats. The animals were randomly divided into three groups: Group 1 (sham), Group 2 (IR), and Group 3 (IR+PI). RESULTS: The mean levels of Malondialdehyde (MDA), Myeloperoxidase (MPO), and Total Oxidant Status (TOS) were higher in the IR group (p=0.025, p<0.001, and p=0.016, respectively). The Total Antioxidant Status (TAS) levels were lower in the IR group (p=0.005). Immunostaining revealed significant differences across the groups for Tumor necrosis factor-alpha (TNF-alpha): 13.84%, 49.51%, and 22.51% for Groups 1, 2, and 3, respectively (p<0.01). Bax: 10.53%, 46.74%, and 26.46% for Groups 1, 2, and 3, respectively (p<0.01). Annexin V: 12.24%, 44.86%, and 23.28% for Groups 1, 2, and 3, respectively (p<0.01). The mean scores for hemorrhage, inflammation, follicular degeneration, and congestion showed significant variations among the groups, all registering p<0.001. CONCLUSION: Passiflora Incarnata exhibited antioxidant, anti-inflammatory, and anti-apoptotic properties, promoting cell survival, histologically protecting ovarian tissue, and ameliorating IR injury by reducing oxidative stress.
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    Wound healing activity of Salvia huberi ethanolic extract in streptozocininduced diabetic rats
    (Ma Healthcare Ltd, 2023) Ozay, Yusuf; Ozkorkmaz, Ebru Gokalp; Kumas-Kulualp, Meltem; Kara, Sevda Guzel; Yildirim, Zuhal; Uzun, Cosar; Celik, Ayla
    Objective: The aim of this study was to examine the in vivo wound healing potential of Salvia huberi Hedge (endemic to Turkey) on excision and incision wound models in diabetic rats. Method: Male Wistar albino rats, 3-4 months old and weighing 180-240g were used. The animals were randomly divided into five groups including Control, Vehicle and Fito reference, and two different concentrations (0.5% and 1% weight/weight (w/w)) of ethanol extract of Salvia huberi were investigated in both wound models on streptozocin-induced diabetic rats using macroscopic, biomechanical, biochemical, histopathological, genotoxic and gene expression methods over both seven and 14 days. Fito cream (Tripharma Drug Industry and Trade Inc., Turkey) was used as the reference drug. Results: A total of 60 rats were used in this study. Salvia huberi ointments at 0.5% and 1% (w/w) concentrations and Fito cream showed 99.3%, 99.4% and 99.1% contraction for excision wounds, and 99.9%, 97.0% and 99% contraction for incision wounds, respectively. In Salvia huberi ointments and Fito cream groups, re-epithelialisation increased dramatically by both day 7 and day 14 (p<0.05). By day 14, low hydroxyproline and malondialdehyde (MDA) levels, and high glutathione (GSH) levels were observed in the Salvia huberi ointment groups. After two application periods, damaged cell percent and genetic damage index values and micronucleus frequency of Salvia huberi ointment treatment groups were lower than Control and Vehicle groups (p<0.001). A growth factor expression reached a high level by day 7 in the Control group; in Salvia huberi-treated groups it was decreased. Conclusion: The study showed that application of Salvia huberi ointments ameliorated the healing process in diabetic rats with excisional and incisional wounds and may serve as a potent healing agent. Declaration of interest: The authors have no conflicts of interest.