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    Anti-Cataract effect of the traditional aqueouse extract of yerba mate (Ilex paraguariensis A. St.-Hil.): An in ovo perspective
    (Multidisciplinary Digital Publishing Institute (MDPI), 2024) Öncü, Şeyma; Kızılkaya, Merve Becit; Bilir, Abdulkadir; Sarıtaş, Alperen; Söylemez, Evrim Suna Arıkan; Koca, Halit Buğra; Fırat, Fatma; Kaplan, Afife Büşra Uğur; Yılmaz, Mustafa Abdullah
    Introduction: The therapeutic effect of different doses of the traditional aqueous extract of dried leaves of yerba mate (Ilex paraguariensis A. St.-Hil.) was investigated in an experimental cataract model in chicken embryos. Methods and Results: LC-MS/MS analysis allowed the identification and quantification of 53 metabolites. In the hydrocortisone-induced cataract model, lenses were examined morphologically after treatment and parameters related to oxidative stress (total antioxidant/oxidant status (TAS/TOS), glutathione (GSH), and malondialdehyde (MDA)) were evaluated. Antiproliferative cell nuclear antigen (PCNA) and caspase-3 H-scores were determined and crystallin alpha A (CRYAA) gene expression in the lenses was measured by RT-PCR. The degree of cataract decreased in all treatment groups. While there was no significant difference in TAS levels compared to the negative control, TOS, GSH, and MDA levels were dose-dependently regulated. Treatment groups other than the high-dose group regulated the decrease in PCNA and the increase in caspase-3. CRYAA gene expression increased significantly only at the lowest dose. Conclusion: YM, which is becoming increasingly popular as a traditional tea, showed a therapeutic effect on hydrocortisone-induced cataracts in chicken embryos at relatively low doses.
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    Development and in vitro characterization nanoemulsion containing the methanol extract of Hypericum linarioides for wound healing: In vitro scratch assay
    (Elsevier B.V., 2024) Kaplan, Afife Büşra Uğur; Yeşilyurt, Fatma; Güven, Leyla; Çetin, Meltem; Laçin, Burak Batuhan; Özkaraca, Mustafa; Yılmaz, Mustafa Abdullah
    It was aimed to develop and in vitro characterize the methanol extract of Hypericum linarioides (MHL)-containing nanoemulsion formulation (MHL-NEF) to heal the wound effectively. MHL-NEF was prepared and its droplet size, polydispersity index (PDI), viscosity, pH and zeta potential (ZP) values were determined. The effect of MHL and MHL-NEF on human dermal fibroblast cell viability was examined by MTT assay. Also, their wound healing potential was evaluated using the scratch assay. The droplet size, PDI, ZP, pH and viscosity values for the MHL-NEF were found to be 157.67±7.61 nm, 0.268±0.036, (-)40.20±6.79 mV, 4.27±0.01, and 1.82±0.01 cP, respectively. In the cell viability assay, the highest percentage of living cells was obtained at concentration of 0.4 µg/mL for the MHL and MHL-NEF. In the scratch assay, MHL-NEF showed significantly ameliorated wound closure (%) rates at 24 and 30 h than the groups of control, MHL and blank-NEF (NEF without MHL) (p < 0.001). Immunofluorescence staining was carried out. TGF-?1 and FGFR-2 expressions in MHL-NEF-treated fibroblast cells increased significantly at 24 h compared to the groups of control, MHL, and B-NEF (p < 0.001). Our findings show that MHL-NEF may be promising for better wound healing. © 2024 SAAB
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    The methanol extract of Centaurea depressa M. Bieb. -Containing nanoemulsion formulation: In vitro characterization and scratch assay
    (Editions de Sante, 2024) Güven, Leyla; Kaplan, Afife Büşra Uğur; Yeşilyurt, Fatma; Çetin, Meltem; Laçin, Burak Batuhan; Özkaraca, Mustafa; Yılmaz, Mustafa Abdullah
    Centaurea depressa M. Bieb. is used in traditional medicine as wound healing, antidiabetic, antibacterial, antimalarial, antirheumatic, diuretic, antipyretic, antibacterial, tonic, astringent, choleretic. It is popularly used as poultice, pounded, infusion, decoction, external, and internal. This study aimed to develop and in vitro characterize the methanol extract of Centaurea depressa (MCD)-containing nanoemulsion formulation (MCD-NEF) to heal the wound effectively and analyze the phenolic compounds. MCD-NEF was prepared and its droplet size, PDI, and ZP, and viscosity were determined. The effect of MCD and MCD-NEF on human dermal fibroblast cell viability was examined by MTT assay. MCD's phenolic compound profiles were analyzed by LC-MS/MS. Also, MCD and MCD-NEF's wound healing potential was evaluated using the scratch assay. The droplet size, PDI, ZP, pH and viscosity values for the MCD-NEF were found to be 152.42 ± 3.50 nm, 0.187 ± 0.020, (−)27.67 ± 1.68 mV, 5.57 ± 0.03, and 1.891 ± 0.010 cP, respectively. In the cell viability assay, the highest percentage of living cells was obtained at concentration of 16 μg/mL for the MCD and MCD-NEF. In the scratch assay, MCD-NEF showed significantly ameliorated wound closure % rates at 24 and 30 h than the control, MCD and blank-NEF (without MCD) groups (p < 0.001). In this study, immunofluorescence staining was carried out. TGF-β1 and FGFR-2 expressions in MCD-NEF-treated fibroblast cells increased significantly at 24 and 30 h compared to the control, MCD, and B-NEF groups (p < 0.001). MCD's. Twenty-seven phenolic compounds, including quinic acid, chlorogenic acid, cynaroside, cosmosiin, protocatechuic acid and isoquercitrin were determined by LC-MS/MS to be major phytochemical compounds in MCD. Our findings show that MCD-NEF may be promising for better wound healing.