Abstract

Exposure of rats to the combined effect of HF and SO2 decreased body weight, O2 consumption and myoglobin levels in muscles and increased the erythrocyte level in blood. Low and high concentrations of HF and SO2 decreased cytochrome oxidase activity in almost all organs and had a toxic effect on succinate dehydrogenase activity in lung, liver and brain tissue. The combined effect of the 2 gases on most indices was of the summation type.

• Related Studies :

  • Oxidative stress parameters in rats exposed to fluoride and caffeine

    In our experiment, the 1-month effects of caffeine (Caff) and fluoride (F) administered separately and together on nitric oxide and total antioxidant status in serum, brain, liver and kidney of rats were investigated. Also, the influence of caffeine on fluoride excretion with urine was studied. Thirty adult male Wistar rats

  • A possible mechanism for combined arsenic and fluoride induced cellular and DNA damage in mice

    Arsenic and fluoride are major contaminants of drinking water. Mechanisms of toxicity following individual exposure to arsenic or fluoride are well known. However, it is not explicit how combined exposure to arsenic and fluoride leads to cellular and/or DNA damage. The present study was planned to assess (i) oxidative stress

  • New data for the validation of the mean daily maximum permissible concentration of hydrogen fluoride in atmospheric air

    1.  Round-the-clock exposure to hydrogen fluoride concentrations of 0.10 and 0.03 mg/m3 causes inhibition in the central nervous system, decreases the activity of a number of enzymes, impairs the phosphorus-calcium metabolism, and causes the accumulation of fluorine in the body and damage to the internal organs and bone tissue. 2.  A

  • Impact of Prenatal and Postnatal Treatment of Sodium Fluoride and Aluminum Chloride on Some Hormonal and Sensorimotor Aspects in Rats.

    In most communities, there is a constant exposure to environmental pollutants with probable negative impact on the development of the nervous system. Among these pollutants are the sodium fluoride (NaF) and aluminum chloride (AlCl3) which may represent a real threat to the proper functioning of the brain. This study comprises

  • Establishment of drug delivery system nanocapsulated with an antioxidant (+)-catechin hydrate and sodium meta borate chelator against sodium fluoride induced oxidative stress in rats

    Oxidative stress a major cause of fluoride induced toxicity and mitochondrial impairment in common in experimental rats during chronic exposure of fluoride. Attempts have been made in the present experiment to diminish oxidative damage, combined therapy with (+)-catechin hydrate (an antioxidant) and sodium meta borate (chelator) were used. Fluoride intoxication

• Related FAN Content :

  • Fluoride & IQ: 69 Studies

    As of June 2021, a total of 77 studies have investigated the relationship between fluoride and human intelligence. Of these investigations, 69 studies have found that elevated fluoride exposure is associated with reduced IQ in humans, while over 60 animal studies have found that fluoride exposure impairs the learning and/or

  • Fluoride Affects Learning & Memory in Animals

    An association between elevated fluoride exposure and reduced intelligence has now been observed in 65 IQ studies. Although a link between fluoride and intelligence might initially seem surprising or random, it is actually consistent with a large body of animal research. This animal research includes the following 45 studies (out

  • Fluoride: Developmental Neurotoxicity.

    Developmental Neurotoxicity There has been a tremendous amount of research done on the association of exposure to fluoride with developmental neurotoxicity. There are over 60 studies reporting reduced IQ in children and several on the impaired learning/memory in animals. And there are studies which link fluoride to Attention Deficit Hyperactivity Disorder. Teaching

  • Fluoride's Effect on Fetal Brain

    The human placenta does not prevent the passage of fluoride from a pregnant mother's bloodstream to the fetus. As a result, a fetus can be harmed by fluoride ingested pregnancy. Based on research from China, the fetal brain is one of the organs susceptible to fluoride poisoning. As highlighted by the excerpts

  • NRC (2006): Fluoride's Neurotoxicity and Neurobehavioral Effects

    The NRC's analysis on fluoride and the brain.