Yazar "Okur, Mehmet Evren" seçeneğine göre listele

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    An alternative approach wound healing field with Polypodium vulgare
    (Logos Medical Publishing, 2020) Batur, Şebnem; Ayla, Şule; Şakul, Ayşe Arzu; Okur, Mehmet Evren; Karadağ, Ayşe Esra; Daylan, Benay; Günal, Mehmet Yalçın
    Objective: In this study, we examined the effects of Polypodium vulgare L. (Polypodiaceae) as a candidate to be used for wound healing scarred area. We investigated the antibacterial, and antioxidant activity of P. Vulgare on both in vivo, and in vitro wound healing using an excisional wound model in mice Method: We used 32 Balb-c mice equally divided into four groups: Group 1 control, Group 2 vehicle, Group 3 Polypodium vulgare, and Group 4 Centella asiatica extract (CAE). All treatments were applied topically once in a day. The scar area, percentage wound closure and epithelization time were measured. PDGF, VEGF, and collagen immunohistochemical staining were used for evaluation. Results: CAE and P. vulgare extract groups were observed to be more effective than the control and vehicle groups in terms of new vascular, epidermal and granulation tissue organization. PDGF, VEGF, and collagen immunohistochemical staining was stronger in the P.vulgare extract and CAE groups compared to the control and vehicle groups. In the P. vulgare and CAE groups, PDGF staining intensity was stronger than the control and vehicle groups, but VEGF and collagen staining in P. vulgare group was not different from the control group. Conclusion: P. vulgare had an effect on the injured area by regenerating the epidermis and increasing vascularization. P. vulgare extract with known antioxidant, and antimicrobial activities may be helpful as a supportive treatment in wound healing. © Istanbul Medeniyet University Faculty of Medicine.
  • Küçük Resim
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    In vivo wound-healing and in vitro antibacterial and antioxidant properties of Carduus adpressus extract
    (2023) Şakul, Ayşe Arzu; Ayla, Şule; Okur, Mehmet Evren; Karadağ, Ayşe Esra; Daylan, Benay; Güzel, Elif; Özdemir, Ekrem Musa; Günal, Mehmet Yalçın
    Carduus adpressus has been used for its anti-hair loss effect in traditional folk medicine. The plant species is mainly distributed in Türkiye, Bulgaria, and the Western Caucasus. The studies on this specific plant in the genus Carduus is limited which remarks the significance of the current study. This study aims to investigate the antibacterial, antioxidant, and wound-healing properties of the methanolic extract of Carduus adpressus. Extract was obtained by maceration. The broth microdilution assay was performed on Staphylococcus aureus, Enterococcus faecalis, Pseudomonas aeruginosa, and Escherichia coli. DPPH and ABTS radical scavenging assays were performed to detect the antioxidant capacity. Wound-healing activity was tested using alloxan-induced diabetic BALB-c mice. 4 groups, control, vehicle, CAE and Carduus adpressus groups were treated with the relative agent for 10 days. Extract demonstrated 62.5 µg/mL MIC against S. aureus and E. faecalis, and 125 µg/mL MIC against P. aeruginosa and E. coli. ABTS assay showed higher antioxidant activity compared to the DPPH assay. Carduus adpressus group demonstrated strong regeneration, epithelisation, and angiogenesis compared to the control group on day 10. Additionally, expression of PDGF, VEGF, and collagen formation was increased in the Carduus adpressus group compared to the control group on day 10. Extract demonstrated strong antibacterial, antioxidant, and wound-healing activities which indicate that it could be a source in developing wound-healing agents.
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    Öğe
    Novel insight into wound healing properties of methanol extract of Capparis ovata Desf. var. palaestina Zohary fruits
    (Wiley, 2018) Okur, Mehmet Evren; Ayla, Şule; Polat, Derya Çicek; Günal, Mehmet Y.; Yoltaş, Ayşegül; Biçeroğlu, Özge
    ObjectivesThe objective of this study was to investigate the wound healing activity of Capparis ovata var. palaestina fruit extract in mice. For this aim, wound healing, invitro antimicrobial and antioxidant activities, HPLC, phenolic and flavonoid compounds analyses were performed. MethodsThe wound healing effect was tested by excisional wound model. Wound closure was measured for 14days and at 14th day wound healing was assessed by levels of TGF-, VEGF, COL1A1 and angiogenesis, granulation tissue thickness, epidermal and dermal regeneration. The antioxidant activity was calculated by DPPH and ABTS free radical scavenging assays. Antimicrobial ability was evaluated by minimum inhibitory concentration and agar well diffusion tests. Key findingsThe extract indicated significant antioxidant activity while it also exhibited antimicrobial activity. Rutin was found in the extract according to HPLC study. Moreover, the extract was found to have rich phenolic and flavonoid contents. Histological evaluation showed that extract group induced significant (P<0.001) wound healing activity compared to control group. Furthermore, extract group increased wound healing rates by promoting granulation tissue, epidermal regeneration, angiogenesis, collagen, TGF- and VEGF. ConclusionsThe results clarified that the extract possesses antioxidant, antimicrobial activity and thus could provide a valuable contribution to the wound healing.
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    Öğe
    Prunus spinosa L. meyvelerinin deneysel yara iyileşmesi üzerine etkileri
    (2017) Ayla, Şule; Günal, Mehmet Yalçın; Şakul, Ayşe Arzu Sayın; Biçeroğlu, Özge; Özdemir, Ekrem Musa; Okur, Mehmet Evren; Bilgiç, Bülent Emre
    Farelerde oluşturduğumuz deneysel yara modellerinde, Prunus Spinosa L. metanollü meyve ekstresini kullanarak, bu ekstrenin yara iyileşmesindeki etkisini araştırdık. Otuz iki adet C57/Black fare ile 4 deney grubu oluşturuldu. Birinci grup kontrol grubu, 2. grup taşıyıcı (gliserin) grup, 3. grup Prunus spinosa, 4. grup ma- decassol grubu idi ve her bir grupta farelerin sırtında eksizyonel yara modeli oluşturularak Prunus Spinosa L. ve madecassol 10. gün boyunca uygulandı. Onuncu gün sonunda yara bölgeleri his- tolojik takip için alındı, yara dokuları hematoksilen-eosin ve im- munohistokimyasal (TGF-?, COL1A1) boyalarla boyanarak, yara iyileşmesi için epidermal ve dermal rejenerasyon, granülasyon doku oluşumu, anjiogenezis (yeni damar oluşumu), immunohis- tokimyasal boyalarla yeni oluşan kollajen yapılanması ve TGF ? artışı değerlendirilerek skorlandı. Prunus spinosa L’nin yara do- kusunda iyileşme oranlarını, granülasyon dokusunu, epidermal rejenerasyonu ve anjiogenezisi artırarak gösterdiği yine immü- nohistokimyasal boyamalarda kollajen ve TGF ? oranlarında ista- tistiksel olarak anlamlı bir artışın olduğu gözlendi. Yine 4. günün ve 10. günün sonunda yara kontraksiyonunda ve yara yerinin reepitelizasyonunda ilaç ve madecassol grubunda kontrol gru- buna kıyasla anlamlı bir artış gözlenmiştir. Bulgularımız, Prunus spinosa L’nin yara iyileşmesini desteklediğini göstermiştir. Prunus spinosanın antiinflamatuvar, antioksidan ve antibakteriyel etki- si ile, kollajen sentezini artırarak ve inflamatuvar hücre sayısını azaltarak yara iyileşmesinin tedavisinde kullanılabileceğini dü- şündürdü.
  • Küçük Resim
    Öğe
    Wound Healing Activity of Arum Maculatum
    (2023) Arzu Sakul, Ayşe; Okur, Mehmet Evren; Ayla, Şule; Daylan, Benay; Karadağ, Ayşe Esra; Batur, Şebnem; Özdemir, Ekrem Musa; Altınalan, Ebrar; Günal, Mehmet Yalçın
    Objective: In this study, the antioxidant properties of Arum maculatum plant were evaluated. This study reported for the first time the wound healing activity of the methanol extract of A. maculatum fruits. This study aimed to assess and determine the possible pharmacological activities of A. maculatum and evaluate its potential to act as a wound care plant. Methods: The antioxidant and antimicrobial activities of A. maculatum were investigated using excisional in vivo and in vitro wound healing mouse models. A total of 32 Balb-c mice were used, which were equally, divided into four groups: saline control group, control group, A. maculatum group, and Centella asiatica extract group. Treatment applications were performed topically once per day. Wound area narrowing, wound healing percentage, and epithelialization time were analyzed. Results: A. maculatum application supported the healing process in in vivo and in vitro wound models. A. maculatum contributed to the healing process by promoting granulation tissue formation, epidermal regeneration, and angiogenesis. Conclusions: Wound healing is a complex and well-organized process that requires communication between cells. The antioxidant and antimicrobial activities of A. maculatum extract have been determined by current studies. A. maculatum extract may provide significant benefits in promoting the wound healing process.
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    Wound healing effects of methanol extract of Laurocerasus officinalis roem
    (Taylor & Francis Ltd, 2019) Ayla, Şule; Okur, Mehmet Evren; Günal, Mehmet Yalçın; Özdemir, Ekrem Musa; Polat, Derya Çiçek; Yoltaş, Ayşegül; Biçeroğlu, Özge; Karahüseyinoğlu, Serçin
    Laurocerasus officinalis Roem. (syn: Prunus laurocerasus L.) is a member of Rosaceae family. We investigated the antimicrobial and antioxidant activity of L. officinalis Roem in wound healing both in vivo and in vitro using an excisional wound model model in mice. We used four groups of eight mice as follows: untreated (control), empty gel, extract +gel (L. officinalis +gel), and Madecassol (R) groups. All treatments were applied topically once daily. The scar area, percentage wound closure and epithelization time were measured. L. officinalis promoted wound healing and increased granulation tissue, epidermal regeneration and angiogenesis. L. officinalis extract, which is known for its antioxidant and antimicrobial activities, may be useful for promoting wound healing.