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Abstract Title:

Protective Effect of Aronia Melanocarpa Polyphenols on Cadmium Accumulation in the Body: a Study in a Rat Model of Human Exposure to this Metal.

Abstract Source:

Curr Drug Targets. 2015 Jan 2. Epub 2015 Jan 2. PMID: 25557255

Abstract Author(s):

Malgorzata M Brzóska, Malgorzata Galażyn-Sidorczuk, Maria Jurczuk, Michal Tomczyk

Article Affiliation:

Malgorzata M Brzóska

Abstract:

Recently a growing attention has been paid to the possibility of using biologically active compounds, including polyphenols, for the prevention of unfavourable effects of exposure to xenobiotics. The study was aimed to investigate, in a female rat model, whether consumption of Aronia melanocarpa polyphenols (AMP) under chronic exposure to cadmium (Cd) decreases the gastrointestinal absorption and body burden of this heavy metal. For this purpose, Cd turnover (apparent absorption, retention in the body, concentration in the blood, soft tissues and bone tissue, total pool in internal organs, faecal and urinary excretion) was evaluated in the female Wistar rats who were administered only a 0.1% water extract of AMP (prepared from the powdered extract containing 65.74% of polyphenols) as drinking fluid or/and Cd in diet (1 and 5 mg/kg) for up to 24 months. AMP administration under the low Cd treatment (1 mg/kg diet) had only very slight protective impact against this metal accumulation in the organism, whereas their application under the moderate exposure (5 mg Cd/kg diet) importantly decreased the apparent absorption and retention in the body, and increased urinary concentration of this xenobiotic resulting in its lower concentration in the blood and lower accumulation in soft tissues (mainly in the liver and kidneys) and bone tissue. Based on the study it can be concluded that consumption of polyphenol-rich products may prevent Cd absorption from the diet polluted by this metal and its accumulation in the females' body, and thus also protect from its toxic action.

Study Type : Animal Study

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