Abstract
Objective: To study the effect of excessive fluoride intake on the function of pancreatic islet’s B cells.
Methods: We performed x-rays, determined the [F] in the urine, conducted OGTT insulin and C-peptide releasing tests in the serum, and analyzed the drinking water quality of the exposed group and control group.
Results: (1) The [F] in drinking water and the geometrical mean of the [F] in the urine of the people of the exposed group were higher than those of the control group. (2) The fasting blood glucose concentration and the peak value after oral glucose in the exposed group were higher than those of the control group. The peak value was found later in the exposed group than in the control group. (3) The detectable rate of Diabetes and IGT in the exposed group was higher than that in the control group. (4) The blood-insulin and C-peptide in the exposed group were lower than in the control group, although the peak value after oral glucose was found later in the exposed group.
Conclusions: Excessive fluoride can do much harm to the function of the pancreas islet B cells and the effects change with the degree of fluorosis.
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Activity of pancreatic antioxidative enzymes and malondialdehyde concentrations in rats with hyperglycemia caused by fluoride intoxication.
The aim of this work was to examine the effect of fluoride ions on antioxidative enzyme activity in the pancreas of rats exposed during 4 months to NaF in drinking water. The study was carried out in 30 four-week-old male Wistar FL rats, that were randomly assigned to three equal
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Predominant contribution of the G protein-mediated mechanism to NaF-induced vascular contractions in diabetic rats: association with an increased level of G(qalpha) expression.
The purpose of this study was to determine the mechanism responsible for alterations in NaF-induced contractions of blood vessels from streptozotocin-induced diabetic rats. In the presence of AlCl(3), NaF (>/=7.5 mM) produced significantly greater contractions in diabetic aorta and mesenteric artery compared with age-matched controls. Pretreatment with 1 microM nifedipine
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Ameliorative effect of tamarind leaf on fluoride-induced metabolic alterations
OBJECTIVES: Fluoride is a serious health hazard across several nations, and chronic intake of fluoride deranges the carbohydrate, lipid and antioxidant metabolism in general. As there are limited remedial measures to prevent fluorosis, we investigated the role of tamarind leaf as a food supplement in restoration of carbohydrate, lipid and
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Dental fluorosis as a complication of hereditary diabetes insipidus: studies of six affected patients.
Hereditary diabetes insipidus is a rare endocrine disorder caused by a deficiency of the antidiuretic hormone, vasopressin. The disease is characterized by polyuria, extreme thirst, and polydipsia. In this study of six affected members from two families with hereditary diabetes insipidus, it was found that two children who drank water
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Bone mass increase and glucose tolerance in rats chronically treated with sodium fluoride.
Female rats were treated with fluoride for 100 days (between 21 and 121 days of age) replacing the water supply with a 5 mM NaF solution. Bone mass was assessed by destructive physical and chemical measurements on the whole skeleton, that gave an overall view not reported previously. Bone mass
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NRC (2006): Fluoride's Effect on Glucose Metabolism
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Fluoride Sensitivity Among Diabetics
This section on Diabetes includes: • Fluoride & Impaired Glucose Tolerance • Fluoride & Insulin • Fluoride Sensitivity Among Diabetics • Fluoridated Water Causes Severe Dental Fluorosis in Children with Diabetes Insipidus • NRC (2006): Fluoride’s Effect on Glucose Metabolism “The present study showed that aortae and mesenteric arteries from streptozotocin-induced diabetic rats exhibited greater contractions
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Fluoridated Water Causes Severe Dental Fluorosis in Children with Diabetes Insipidus
This section on Diabetes includes: • Fluoride & Impaired Glucose Tolerance • Fluoride & Insulin • Fluoride Sensitivity Among Diabetics • Fluoridated Water Causes Severe Dental Fluorosis in Children with Diabetes Insipidus • NRC (2006): Fluoride’s Effect on Glucose Metabolism Excessive exposure to fluoride causes a defect of the tooth enamel known as dental fluorosis. In
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Fluoride & Impaired Glucose Tolerance
The proper regulation of blood glucose levels is essential to good health. When the body's ability to regulate blood glucose levels falters, as occurs in diabetes mellitus, chronic elevated glucose levels (hyperglycemia) can lead to serious complications. These consequences include damage to the kidneys, nervous system, cardiovascular system, retina, legs
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Fluoride & Insulin
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