THE INVESTIGATION OF TANNIC ACID EFFECTS ON REMOVAL OF HEAVY METALS AND SOME BIOCHEMICAL VALUES IN THE RAT TOXICITY INDUCED BY CADMIUM

KADMİYUM TOKSİSİTESİ OLUŞTURULAN SIÇANLARDA TANNİK ASİTİN, AĞIR METAL GİDERİMİ VE BAZI BİYOKİMYASAL DEĞERLER ÜZERİNE ETKİSİNİN ARAŞTIRILMASI

Didem TURGUT COŞAN,Aylin DAL,Ahu SOYOCAK,ERTUĞRUL ÇOLAK,ARZU ÇİÇEK,Hülyam KURT

Abstract

OBJECTIVE: Cadmium (Cd), one of the major environmental pollutants used intensively in the industrial field and could causes a variety of vital threats due to our exposure in our daily lives. Having a long half-life, Cd causes direct or indirect toxicity to respiratory, urinary, cardiovascular, gastrointestinal, nervous system and bones. It is known that Cd that accumulates in the body causes many diseases such as osteoporosis, anemia, eosinophilia, anosmia and chronic rhinitis. In our study, we aimed to investigate the role of tannic acid (TA), an antioxidant substance with a high content of flavonoids and heavy metal chelating agents, in order to investigate its role in protecting from Cd toxicity. MATERIALS AND METHODS: In this study, it was used 28 Spraque-Dawley, 200-300 gr, 3-4 monthly male rats. For pre-treatment, TA (50 mg/kg/day) was administered by intraperitoneal (i.p) injection to the experimental groups for 5 days. And then a single dose CdCl2 (35 mg/kg) was was administered by intragastric (i.g). RESULTS: It was observed that superoxide dismutase (SOD) values decreased in hemolysate, liver and kidney by CdCl2 administration; but increased with TA. Malondialdehyde (MDA) values increased with CdCl2 administration whereas decreased with TA the hemolysate and liver. TA was found to be effective in decreasing heart accumulation, while TA was not effective in reducing accumulation with CdCl2 administration in liver, kidney, lung, testis and spleen. TA is not effective in reducing increased iron accumulation with CdCl2 administration in the kidney, spleen and heart, but in liver, lung and testis it could be effective. CONCLUSIONS: Food and drinks used in the daily diet may increase the quality of life of individuals by early prevention of certain diseases that may result in exposure to toxic agents. In our study, it has been shown that TA, which is consumed in our daily lives, may be effective in protecting substances from heavy metal toxicity. According to the results obtained, different results could be reached in different tissues; but when assessed in general, the harmful effects of Cd, or at least the result that TA have been achieved to reduce the accumulation of some tissues.

Özet

AMAÇ: Endüstriyel alanda yoğun bir şekilde kullanılan, önemli çevre kirleticilerden biri olan kadmiyum (Cd), günlük hayattaki maruziyetimiz nedeniyle yaşamsal bir takım tehditlere sebep olabilmektedir. Uzun bir yarılanma ömrüne sahip olan Cd, solunum, üriner, kardiovasküler, gastrointestinal, sinir sistemi ve kemiklerde direkt veya dolaylı olarak toksisiteye neden olmaktadır. Vücutta biriken Cd’un osteoporoz, anemi, eozinofili, anozmi ve kronik rinit gibi birçok hastalığa neden olduğu bilinmektedir. Çalışmamızda, flavonoid içeriği oldukça yüksek, ağır metal şelatlayıcı özelliğe sahip ve antioksidan tannik asidin (TA) Cd toksikasyonundan korunmadaki rolünü araştırmak amaçlandı.