Abstract
The protective effect of ascorbic acid at dose level of 1.0 mg/L in drinking water against the fluoride-induced damage on reproductive system of rat was studied. 150 mg/L sodium fluoride (NaF) in drinking water of male rat can cause the significant decrease of sperm count and mobility, the increase of serum and testicular lipid peroxides (LPO) contents, and the adenosine triphosphatase (ATPase) activity depression of epididymis. All of those effects are reversible by adding adequate ascorbic acid in drinking water simultaneously. The effects of ascorbic acid against fluoride-induced damages are similar to those produced by 2.0 mg/L Na2SeO3 in the drinking water of rats. However, no significant recovery of fluoride-induced effects on GSH-Px activities in the tissues of testis and epididymis were observed in ascorbic acid and fluoride group. The mechanism of ascorbic acid on fluoride-induced damage of male reproductive system need to be further studied.
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Fluoride toxicity in the testis and cauda epididymis of guinea pig and reversal by ascorbate
Effects of sodium fluoride (NaF) (30 mg kg-1 body weight) and ascorbic acid ingestion along with sodium fluoride for 30 days each were studied to evaluate its possible role as an ameliorative agent on functions of reproductive organs and spermatozoa of the fluorotic guinea pig. The cauda epididymal spermatozoa were
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Induction of oxidative stress on reproductive and metabolic organs in sodium fluoride-treated male albino rats: protective effect of testosterone and vitamin E coadministration
The present study was undertaken to search out the effect of sodium fluoride, a water pollutant noted throughout the world, including India, on oxidative stress induction in reproductive tissues, sperm pellet, and metabolic tissues like the liver and kidney. The protective effects of testosterone or vitamin-E coadministration were also observed
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[Study on antagonistic effects of selenite on fluoride-induced impairments of testis and epididymis in rats].
Objective: To study the mechanisms of the antagonistic action of selenite on fluoride-induced male reproductive damages, and find out the optimal level of selenite in drinking water against fluoride toxicity. Methods: Five groups of SD male rats were provided with deionized drinking water containing 0 and 150 mg/L NaF, and
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Amelioration of fluoride toxicity in rats through vitamins (C, D) and calcium
The healthy, adult male rats (Rattus norvegicus) were treated with fluoride water (F.W.+5.8 ppm), F.W.+ ascorbic acid and F.W. + vitamins (C, D) and Ca+2 for 60 days. Fluoride water ingestion to rats for 60 days resulted in significant reduction of seminal vesicle weight, sperm motility and sperm density of
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Reversal of fluoride-induced alteration in cauda epididymal spermatozoa and fertility impairment in male mice
The effects of sodium fluoride (NaF) ingestion (10 mg NaF/kg body weight) and the possible therapeutic effects of ascorbic acid (AA, 15 mg/animal/day) and/or calcium phosphate (Ca, 25 mg/animal/day) on the reproductive functions and fertility of male mice were investigated. NaF-ingestion brought about a significant decline in sperm acrosomal acrosin
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Nutrient Deficiencies Enhance Fluoride Toxicity
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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
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Kidney Patients Are at Increased Risk of Fluoride Poisoning
It is well established that individuals with kidney disease are susceptible to suffering bone damage and other ill effects from low levels of fluoride exposure. Kidney patients are at elevated risk because when kidneys are damaged they are unable to efficiently excrete fluoride from the body. As a result, kidney patients
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Factors which increase the risk for skeletal fluorosis
The risk for developing skeletal fluorosis, and the course the disease will take, is not solely dependent on the dose of fluoride ingested. Indeed, people exposed to similar doses of fluoride may experience markedly different effects. While the wide range in individual response to fluoride is not yet fully understood, the following are some of the factors that are believed to play a role.
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Fluoride Is Not an Essential Nutrient
In the 1950s, dentists believed that fluoride was a “nutrient.” A nutrient is a vitamin or mineral that is necessary for good health. Dentists believed that fluoride ingestion during childhood was necessary for strong, healthy teeth. A “fluoride deficiency” was thus believed to cause cavities, just like a deficiency of calcium can
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