RESULTS: This work presents mechanisms by which interaction of fluoride ions with enzymes can take place. The effects of fluoride on enzymes participating in cellular metabolic pathways, like energy formation and carbohydrate and lipid turnover, are discussed. A list of enzymes which are inhibited or activated in vivo and in vitro by fluoride ions is provided, together with information on species and organs of origin, fluoride concentration, and extent of inhibition or activation.
Effects of fluoride accumulation on some enzymes of brain and gastrocnemius muscle of mice
This study reports accumulation of fluoride and altered activities of some enzymes involved in free-radical metabolism and membrane function in whole brain and gastrocnemius muscle of female mice treated with NaF (20mg/kg/body weight) for 14 days. The body weight and somatic index were decreased, whereas fluoride levels were significantly increased
Diverse effects of fluoride on NA+ and K+ transport across the rat erythrocyte membrane.
The cellular effects of fluoride (as F – from NaF) on Na + and K + transport across the rat erythrocyte membrane were investigated using 22 Na as a tracer and nonradioactive Rb + as a K + congener. Exposure of rat erythrocytes to 20 mM NaF for 30–120 min
Enzymatic activity of Glutathione S-Transferase and dental fluorosis among children receiving two different levels of naturally fluoridated water
This study was conducted to measure the activity of the enzyme glutathione S-transferase (GST) in saliva and to compare the activity of this enzyme in children with and without dental fluorosis in communities with different concentrations of naturally fluoridated water. A total of 141 schoolchildren participated in this cross-sectional study.
Lipid peroxidation and antioxidant enzyme status of adult males with skeletal fluorosis in Andhra Pradesh, India.
Blood samples from 24 adult males, age 25 to 40, with endemic skeletal fluorosis, living in the Vaillapally village of the Nalgonda district, Andhra Pradesh, India, were examined and compared with samples from 15 matched controls for their antioxidant enzyme activity and lipid peroxidation. Elevated malondialdehyde (MDA) levels indicated an
Epigallocatechin gallate potentially attenuates fluoride induced oxidative stress mediated cardiotoxicity and dyslipidemia in rats
The present study was undertaken to evaluate the cardioprotective role of (-)-epigallocatechin-gallate (EGCG) against Fluoride (F) induced oxidative stress mediated cardiotoxicity in rats. The animals exposed to F as sodium Fluoride (NaF) (25mg/kg BW) for 4 weeks exhibited a significant increase in the levels of cardiac troponins T and I
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