Shed plane leaves as a source of?-tocopherol

Хидырова, Н. К.; Rashkes, Ya. V.; Rashkes, A. M.; Abdullaev, U. A.; Khodzhaeva, M. T.; Shakhidoyatov, Kh. H.; Turakhozhaev, M. T.

doi:10.1007/bf01165191

Cited by 5 publications

(3 citation statements)

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“…Additionally, it is one of the largest and longest-living trees in the Eastern Mediterranean (Hajhashemi et al, 2011). Proanthocyanidin glycosides (Nishanbaev et al, 2010), flavonol glycosides (El-Alfy et al, 2008), phenolic substances (Mitrokotsa et al, 1993), fatty acids (Khidyrova et al, 1995), phytol derivatives (Abdullaev et al, 1994), and flavonoids (Haider et al, 2012) have been identified as the plant's main chemical components. The leaves, fruits, seeds, and other structures of this species are used in public health (Dogan and Anuk, 2019).…”

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Exploring the Protective Effects of Chinar (Platanus Orientalis L.) Leaf on Testes Damage Induced by Ethanol in Rat Model

2024

THE JAPS

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The aim of this study was to investigate the protective effects of an infusion obtained from dried Chinar (Platanus orientalis L.; PO) leaves against ethanol (EtOH)-induced damage in rat testes. Thirty male Wistar rats were randomly and equally divided into 5 groups, as the Control, EtOH 20%, EtOH 20% + Silymarin (10 mg/kg/day), EtOH 20% + PO-20 mg/mL infusion, and EtOH 20% + PO-60 mg/mL infusion. Histopathologically, treatment with PO-60 leaf infusion resulted in improvements in EtOH-induced damage in the testes by inhibiting the depletion of germ cells and loss of spermatozoa. Immunohistochemically, an increase in the expression of endothelial nitric oxide synthase (eNOS) and caspase-3 was observed in the EtOH group. Treatment with the PO extract markedly reduced the EtOH-induced expression of eNOS and caspase-3 in the EtOH 20% + PO-60 group. According to the biochemical results, both of the PO infusion treatments caused a decrease in the malondialdehyde levels compared to the EtOH group. On the other hand, the glutathione contents in the treatment groups were significantly higher than ethanol group. Fluctuations in antioxidant defense enzyme activities were determined. PO leaf might have a protective role against EtOH-induced testicular damage in rats by inducing apoptosis via the upregulation of eNOS expression and preventing lipid peroxidation.

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Section: Introductionmentioning

confidence: 99%

Exploring the Protective Effects of Chinar (Platanus Orientalis L.) Leaf on Testes Damage Induced by Ethanol in Rat Model

2024

THE JAPS

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“…The hydrolysates contained quercetin, myricetin, cyanidin, and delphinidin [2,3]. Fallen leaves of plane tree are rich in α-tocopherol, its oxidized dimeric forms, and esters with higher fatty acids [4,5], and carbohydrates [6].The trunk bark contains neutral phytosterols (sito-and stigma-), α-tocopherol, and polyprenols [7] in addition to triterpenoids such as betulinic acid, betulinic aldehyde, platanoic and 3-dehydroplatanoic acids, and sitosterol [3,8].Trunk bark is used in folk medicine to treat dysentery, toothache, diarrhea, etc. [9, 10] and as an anticancer agent [11].…”

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New Oligomeric Proanthocyanidins from Bark of Platanus orientalis

et al. 2005

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The genus Platanus (Platanaceae) is represented by four species in Central Asia [1]. The most widely distributed species is P. orientalis, eastern plane tree, the chemistry of which is little studied.The chemical composition of the leaves has been studied to a comparatively greater extent than that of the trunk bark. Phenolcarboxylic acids and flavonoids (hyperin, tiliroside) were isolated from the leaves. The hydrolysates contained quercetin, myricetin, cyanidin, and delphinidin [2,3]. Fallen leaves of plane tree are rich in α-tocopherol, its oxidized dimeric forms, and esters with higher fatty acids [4,5], and carbohydrates [6].The trunk bark contains neutral phytosterols (sito-and stigma-), α-tocopherol, and polyprenols [7] in addition to triterpenoids such as betulinic acid, betulinic aldehyde, platanoic and 3-dehydroplatanoic acids, and sitosterol [3,8].Trunk bark is used in folk medicine to treat dysentery, toothache, diarrhea, etc. [9, 10] and as an anticancer agent [11]. The goal of the present work was to investigate the chemical composition including proanthocyanidins of plane-tree trunk bark.Proanthocyanidins were isolated by fractionating the aqueous-alcohol extract of P. orientalis bark according to polarity using organic solvents. This produced low-molecular-weight, oligomeric, and polymeric fractions of proanthocyanidins.Column chromatography over finely crystalline cellulose and gel-filtration over Sephadex LH-20 isolated from the butanol fraction of the aqueous-alcohol extract two pure oligomeric glycosylated proanthocyanidins Pl-1 and Pl-7, which gave a red color with vanillin-H 2 SO 4 .Compound Pl-1 had empirical formula C 86 H 78 O 44 and molecular weight MW = 1814. Alkaline decomposition of Pl-1 under a N 2 atmosphere formed three compounds: fluoroglucinol (1) and protocatechoic (2) and gallic acids (3). Hydrolysis cleaved not only interflavane bonds but also flavan-3-ol units at the pyran heterocycle. Fluoroglucinol formed from ring A; phenolic acid, from ring B. Atoms C 3 -C 4 of ring C gave acetic acid [12,13].Acid hydrolysis of Pl-1 cleaved interflavane C-C bonds. This produced (-)-epicatechin-3-O-gallate (4), cyanidin (5), and glucose (6). Thiolytic cleavage of Pl-1 in the presence of thiophenol and acetic acid formed three compounds. The "lower" part of the molecule gave (-)-epicatechin-3-O-gallate (4); the "upper" blocks, a mixture of thioethers 7 and 8, which then decomposed catalytically in the presence of Raney Ni. The resulting compounds were identified by physicochemical and spectral properties as (-)-epicatechin (9) and (-)-epicatechin-3-O-gallate (4).

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Investigation of the phytochemical composition and antioxidant properties of chinar (Platanus orientalis L.) leaf infusion against ethanol-induced oxidative stress in rats

Doğan

Anuk

2019

Mol Biol Rep

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Shed plane leaves as a source of?-tocopherol

Cited by 5 publications

References 1 publication

Exploring the Protective Effects of Chinar (Platanus Orientalis L.) Leaf on Testes Damage Induced by Ethanol in Rat Model

Exploring the Protective Effects of Chinar (Platanus Orientalis L.) Leaf on Testes Damage Induced by Ethanol in Rat Model

New Oligomeric Proanthocyanidins from Bark of Platanus orientalis

Investigation of the phytochemical composition and antioxidant properties of chinar (Platanus orientalis L.) leaf infusion against ethanol-induced oxidative stress in rats

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