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    Dermatoprotective effect of Moringa oleifera leaf extract on sodium valproate-induced skin damage in rats
    (Taylor & Francis Ltd, 2024) Elik, Gülsüm; Oktay, Sehkar; Türkyılmaz, İsmet Burcu; Alev Tüzüner, Burçin; Magaji, Umar Faruk; Sacan, Özlem; Yanardağ, Refiye
    Valproic acid is an antiepileptic drug associated with skin-related issues like excessive hair growth, hair loss, and skin rashes. In contrast, Moringa oleifera, rich in nutrients and antioxidants, is gaining popularity worldwide for its medicinal properties. The protective properties of M. oleifera extract against skin-related side effects caused by valproic acid were investigated. Female rats were divided into control groups and experimental groups such as moringa, sodium valproate, and sodium valproate + moringa groups. A 70% ethanolic extract of moringa (0.3 g/kg/day) was given to moringa groups, and a single dose of sodium valproate (0.5 g/kg/day) was given to valproate groups for 15 days. In the skin samples, antioxidant parameters (such as glutathione, glutathione-S-transferase, superoxide dismutase, catalase, and total antioxidant capacity), as well as oxidant parameters representing oxidative stress (i.e. lipid peroxidation, sialic acid, nitric oxide, reactive oxygen species, and total oxidant capacity), were examined. Additionally, boron, hydroxyproline, sodium-potassium ATPase, and tissue factor values were determined. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis was also carried out for protein analysis in the skin samples. The results showed that moringa could increase glutathione, total antioxidant capacity, sodium-potassium ATPase, and boron levels, while decreasing lipid peroxidation, sialic acid, nitric oxide, total oxidant capacity, reactive oxygen species, hydroxyproline, and tissue factor levels. These findings imply that moringa possesses the potential to mitigate dermatological side effects.
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    Moringa oleifera hydroalcoholic leaf extracts mitigate valproate-induced oxidative status in the extraorbital lacrimal gland in a rat model
    (ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND, 2024) Alev Tüzüner, Burçin; Oktay, Sehkar; Çergel, Eda; Elik, Gülsüm; Magaji, Umar Faruk; Saçan, Özlem; Yanardağ, Refiye; Yarat, Ayşen
    Dysfunction of the extraorbital lacrimal gland (ELG) can lead to loss of vision due to damage to the epithelium of cornea. The broad-spectrum anti-epileptic drug sodium valproate (SV) has numerous side effects. Moringa oleifera (M.oleifera) is widely used as a food and in folk medicine. The effects of orally administered SV and M. oleifera hydroalcoholic leaf extract on rat ELG were investigated in this study by analysing both antioxidant and oxidant parameters. Additionally, boron level and tissue factor (TF) activity were determined. Protein changes were detected by sodium dodecyl sulfate gel electrophoresis (SDS-PAGE). Significantly lower values of glutathione (GSH), superoxide dismutase (SOD), catalase (CAT) and total antioxidant status (TAS) were observed in the SV group compared to the control group. Treatment with Moringa extract significantly increased SOD, CAT and TAS values in the Moringa given SV group (SVM). While no significant differences were observed between the sialic acid values of the groups, lipid peroxidation (LPO), nitric oxide (NO) and total oxidant status (TOS) values were significantly elevated in the SV group compared to the control group. Due to the effect of Moringa extract, LPO, NO and TOS levels were significantly decreased in the SVM group compared to the SV group. TF activity was not meaningfully altered between groups. Compared to control rats, oxidative stress index (OSI) level significantly increased, whereas the boron level decreased in the SV group. Moringa extract treatment noticeably reduced OSI in the SVM group. According to SDS-PAGE, decreases in the density of protein bands with molecular weights of 51, 83, and 90 kDa were observed in SV given rats compared to the other groups. These decreases were reversed by the administration of Moringa extract. Moringa extract has shown protective properties arising from antioxidant potential, especially with its very low OSI value. Individuals undergoing SV treatment and having ELG complications might consider using Moringa extract to mitigate valproate induced damage.
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    Reversal of Valproate-Induced Major Salivary Gland Changes By Moringa Oleifera Extract in Rats
    (Wiley-V C H Verlag Gmbh, 2024) Çergel, Eda; Alev Tüzüner, Burçin; Türkyilmaz, İsmet Burcu; Oktay, Sehkar; Magaji, Umar Faruk; Saçan, Özlem; Yanardağ, Refiye
    This study aimed to explore the potential protective impacts of Moringa oleifera extract on major alteration in salivary glands of rats exposed to sodium valproate (VA). Groups were defined as control, control+moringa extract, sodium valproate, and sodium valproate+moringa extract. Antioxidant and oxidant status, activities of digestive and metabolic enzymes were examined. VA treatment led to various biochemical changes in the salivary glands, including decreased levels of antioxidants like glutathione, glutathione-S-transferase, and superoxide dismutase (except for sublingual superoxide dismutase). Conversely, a decrease in alpha-amylase, alkaline and acid phosphatase, lactate dehydrogenase, protease, and maltase activities were observed. The study also demonstrated that VA induces oxidative stress, increases lipid peroxidation, sialic acid, and nitric oxide levels in the salivary glands. Total oxidant capacity was raised in all glands except in the sublingual gland. The electrophoretic patterns of proteins were similar. Moringa oleifera extract exhibited protective properties, reversing these VA-induced biochemical changes due to its antioxidant and therapeutic attributes. This research suggests that moringa extract might serve as an alternative treatment approach for individuals using VA and experiencing salivary gland issues, although further research is necessary to confirm these findings in human subjects.