Abstract

In a new approach to an understanding of the genesis of nonskeletal and skeletal fluorosis, glutathione content in blood was investigated. Thirty cases of fluorosis and forty controls (20 from fluorotic and 20 from nonfluorotic areas) were studied. In fluorotic subjects, blood glutathione concentration was significantly elevated. Urinary hydroxyproline and serum alkaline phosphatase data were also correlated. It appears that the persistent stress of the F- ion demands a protective redox maintainer and that glutatione fulfills that need.

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  • Lipid peroxidation and antioxidant defense systems in liver of rats in chronic fluoride toxicity

    In conclusion, exposure to high fluoride levels [30 & 100 ppm] in drinking water during early stages of life led to increased oxidative stress in the liver of rats as indicated by elevated MDA level and disturbed antioxidant defenses. Adaptive mechanisms in the form of increased activities of GSH-Px and

  • Fluoride induced tissue hypercalcemia, IL-17 mediated inflammation and apoptosis lead to cardiomyopathy: ultrastructural and biochemical findings.

    An increased prevalence of cardiac complications has been observed in residents of fluorosis endemic areas chronically exposed to fluoride. Fluoride induces soft tissue injury due to oxidative stress, lipid peroxidation (LPO) and mitochondriopathy. It was hypothesized that chronic fluoride exposure induces apoptosis in cardiomyocytes due to inflammation, lysis of extra

  • Protective effect of quercetin against sodium fluoride induced oxidative stress in rat's heart

    The antioxidative and cardioprotective properties of quercetin were investigated against sodium fluoride (NaF) induced oxidative stress in rat hearts. Experimental rats were divided into five groups. The first group served as the untreated (normal) control. The second group received NaF at a dose of 600 ppm through drinking water for

  • Effects of melatonin and epiphyseal proteins on fluoride-induced adverse changes in antioxidant status of heart, liver, and kidney of rats

    Several experimental and clinical reports indicated the oxidative stress-mediated adverse changes in vital organs of human and animal in fluoride (F) toxicity. Therefore, the present study was undertaken to evaluate the therapeutic effect of buffalo (Bubalus bubalis) epiphyseal (pineal) proteins (BEP) and melatonin (MEL) against F-induced oxidative stress in heart,

  • Effect of sodium fluoride in maternal and offspring rats and its amelioration

    High fluoride content is known to cause dental and skeletal abnormalities. In addition, present review indicates that sodium fluoride consumption caused increased number of resorptions and dead foetuses. Various skeletal anomalies such as wavy ribs, presence of 14th ribs, lacking 6th sternebrae and incomplete ossification of skull occur. All these

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  • Fluoride content in tea and its relationship with tea quality.

    J Agric Food Chem. 2004 Jul 14;52(14):4472-6. Fluoride content in tea and its relationship with tea quality. Lu Y, Guo WF, Yang XQ. Department of Tea Science, Zhejiang University, 268 Kaixuan Road, Hangzhou 310027, People's Republic of China. Abstract: The tea plant is known as a fluorine accumulator. Fluoride (F) content in fresh leaves collected

  • Nutrient Deficiencies Enhance Fluoride Toxicity

    It has been known since the 1930s that poor nutrition enhances the toxicity of fluoride. As discussed below, nutrient deficiencies have been specifically linked to increased susceptibility to fluoride-induced tooth damage (dental fluorosis), bone damage (osteomalacia), neurotoxicity (reduced intelligence), and mutagenicity. The nutrients of primary importance appear to be calcium,

  • Fluoride & Oxidative Stress

    A vast body of research demonstrates that fluoride exposure increases oxidative stress. Based on this research, it is believed that fluoride-induced oxidative stress is a key mechanism underlying the various toxic effects associated with fluoride exposure. It is also well established that fluoride's toxic effects can be ameliorated by exposure