Abstract

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  • The beneficial or detrimental fluoride to gut microbiota depends on its dosages.

    Highlights The beneficial or detrimental fluoride to gut microbiota depends on its dosages. Low dosages of fluoride had limited effect on structure of gut microbiota. Low dosage of fluoride could promote the growth of beneficial gut microbiota. High dosage of fluoride significantly changed the composition of gut microbiota. High

  • Toxicology and Carcinogenesis Studies of Sodium Fluoride in F344/N Rats and B6C3F1 Mice (Drinking Water Studies)

    CASRN: 7681-49-4 Chemical Formula: NaF Molecular Weight: 41.99 Report Date: December 1990 Sodium fluoride is a white, crystalline, water-soluble powder used in municipal water fluoridation systems, in various dental products, and in a variety of industrial applications. Toxicology and carcinogenesis studies were conducted with F344/N rats and B6C3F1 mice of each sex by incorporating

  • Fluoride disrupts intestinal epithelial tight junction integrity through intracellular calcium-mediated RhoA/ROCK signaling and myosin light chain kinase

    Highlights Fluoride increases epithelial intestinal barrier permeability. Fluoride induces the downregulation and redistribution of ZO-1. Fluoride releases intracellular calcium ions to activate RhoA/ROCK pathway and MLCK. RhoA/ROCK pathway and MLCK play essential roles in fluoride-triggered MLC2 phosphorylation and F-actin rearrangement. Fluoride is a common contaminant of groundwater and agricultural commodity, which

  • Comparative evaluation of serum fluoride levels in patients with and without chronic abdominal pain.

    BACKGROUND: Fluorosis ranks high among the major environmental health problems in India. Non-ulcer dyspeptic complaints are common in humans and it is a known fact that fluoride in drinking water, food and other items can cause these symptoms. METHODS: Fifty adult outpatients (mean age: 35.2±12.7y) with chronic abdominal pain of unexplained origin were

  • Intestinal barrier damage involved in intestinal microflora changes in fluoride-induced mice.

    Highlights Fluoride inhibited the secretion of glycoproteins. Fluoride induced relative number of goblet and mast cells down-regulate. Fluoride inhibited epithelial cells proliferation. Fluoride induced cecal epithelial barrier damages. Fluoride interfered the composition of intestinal microflora. Intestinal microflora play an important role in maintaining the homeostasis of the intestinal microenvironment, but fluoride-induced

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  • Side Effects from Fluoride Gels: Gastric Distress

    Gastric distress -- including nausea, pain, and vomiting -- is one the most common side effects from professional application of "fluoride gels" at the dentist. Patients receiving fluoride gels can swallow more than 20 mg of fluoride from a single treatment -- doses that far exceed the doses that can

  • Fluoride-Induced Damage to Gastric Mucosa in Human Clinical Trials

    When fluoride has been used (at doses of 18-34 mg/day) as an experimental treatment for osteoporosis, gastric pain is one of the two main side effects consistently encountered. To better understand how fluoride causes this effect, researchers have sought to determine how fluoride affects the tissue that lines the gastrointestinal tract. In a

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    Humans suffering from skeletal fluorosis are known to suffer from an increased occurrence of gastrointestinal disorders. When fluoride intake is reduced, these gastrointestinal problems are among the first symptoms to disappear. The following are some of the studies that have examined this issue: "It is clear from the observations presented in this article

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    The following is an excerpt from the National Research Council's (2006) review of fluoride toxicity: "It is important to realize that GI effects depend more on the net concentration of the aqueous solution of fluoride in the stomach than on the total fluoride dose in the fluid or solid ingested. The

  • Fluoride-Induced Gastric Symptoms in Human Clinical Trials

    In studies where fluoride has been used (at doses of 18-34 mg/day) as an experimental drug for the treatment of osteoporosis, gastrointestinal disturbances are one of the two main side effects consistently encountered. The following are some of the accounts from the published literature: "The use of fluoride in the prophylaxis or