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  • Küçük Resim
    Öğe
    DOĞAL ÜRÜNLERİN FENOLİK İÇERİĞİ VE ANTİOKSİDAN ÖZELLİKLERİ
    (2017) Kolaç, Turgay; GÜRBÜZ, Perihan; Yetiş, Gülsüm
    Yaşamda maruz kalınan iç ve dış etkenler, vücutta serbest radikallerin oluşmasına neden olur. Serbest radikaller bireyde hastalık oluşumu ve tabii yaşlanma sürecinin temel sebeplerinden biridir. Antioksidan maddeler vücudu serbest radikallerin zararlı etkilerinden korur. Doğal birçok ürünün antioksidan özelliği vardır. Bitkisel ürünlerin antioksidan etkileri özellikle flavonoidler, sinnamik asit türevleri, kumarinler gibi fenolik bileşiklerden kaynaklanmaktadır. Polifenollerin ana gurupları flavonoidler, fenolik asitler, taninler, stilbenler(resveratrol) ve lignanlar’dır.
  • Küçük Resim
    Öğe
    An Overview about Adverse Hepatic Effects of the Plants Used in Turkey
    (2020) GÜRBÜZ, Perihan
    Herbal supplements are widely used for improving health and treating diseases in nearly all cultures of the world. However, the efficacy, safety, and drug interactions of many of the herbal treatment modalities are not known scientifically, and they are generally used without professional health assistance. Injudicious plant usage has been shown to be a risk factor for serious and unexpected side effects, and from this perspective, herbal drug usage is related to 25%–30% of drug-induced liver injury cases. Plant usage as an alternative therapeutic modality is common in Turkey. In this study, the adverse hepatic effects of the commonly used plants in Turkey has been reviewed. More than 400 plants that are sold by herbalists in different regions of Turkey have been obtained from various studies on this topic, and these plants were investigated for their hepatic effects in PubMed and Science Direct databases. The adverse hepatic outcomes of 27 of the researched plants. Studies about plant hepatotoxicity, plant-plant interaction, and plant-drug interaction have been reviewed in this article. Herbal modalities are widely used as an alternative and complementary treatment method in the population; however, the basic hepatotoxic compounds and the liver injury mechanism of many of the frequently used plants and the molecular action mechanism of most of the ingredient compounds of the plants are not exactly known. Multidisciplinary studies on the mentioned topics will be helpful in understanding the role of plants and hepatotoxicity in medical approaches.