Abstract
SUMMARY: Wistar rats were given 20 ppm fluoride in drinking water, or single administration of 115 mg/kg alloxan i.m. to induce diabetes, or single administration of 115 mg/kg alloxan i.m. followed by 20 ppm fluoride for 31 days. Blood sugar level increased in rats given alloxan and alloxan + fluoride. Body weight gain in rats given alloxan + fluoride decreased significantly compared to other groups. Decrease in hemoglobin and glutamic oxaloacetate transaminase (GOT) was seen only in rats given alloxan + fluoride. In this group alkaline phosphatase, the target enzyme in fluoride toxicosis, increased considerably. The toxicity of fluoride in diabetic rats was further reflected in organ weight data. This investigation shows that fluoride toxicity is greater in diabetic rats.
Excerpt:
Pathological findings of the present study also indicate toxicological magnification by fluoride in diabetic rats. Both diabetes and fluorosis are major disorders which affect several organ systems. It may be concluded from the present study that toxicity by fluoride is greater in diabetes.
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Vitamin D deficiency in patients with diabetes and its correlation with water fluoride levels.
Chronic exposure to fluoride through drinking water has been linked to insulin resistance and resulting type 2 diabetes mellitus (T2DM). Here, we aim to study the impact of water fluoride levels on blood glucose and vitamin D levels. A hospital-based study was conducted on diabetic patients (n = 303) at
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Changes in the concentration of fluoride in the serum and bones of female rats with streptozotocin induced diabetes.
The aim of this study was to determine if streptozotocin-induced diabetes in rats as a model for Type-1 human diabetes causes changes in the levels of fluoride (F) and biogenic elements in the bones and serum in the initial stage of the disease. Twenty-two female Wistar rats were given streptozotocin
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Insulin signal decrease in muscle but not in the liver of castrated male rats from chronic exposure to fluoride
With half the animals as controls without fluoride (F) in their drinking water, 16 of 32 seven-week-old castrated male Wistar rats were administered NaF in their drinking water and F contained in food pellets (estimated total F intake: 4.0 mg F/kg bw/day). After 42 days, determinations were made of the
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Fluoride-induced resistance to insulin in the rat.
The insulinic response of rats challenged with glucose at different times after an oral dose of 40 µmol NaF/100 g bw revealed the concentration of the molecular species reacting with anti-insulin antibody was significantly lower after 3 hr, and the glucose levels were somewhat higher than in controls. At the
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Chronic fluorides impact on pancreatic islet cells in workers
Summary: Decreasing of the insulin concentration and increasing of the C-peptide level in blood serum of 72 workers of cryolytes industries detected by radioimmunilogical method. These changes were caused by the fluorine intoxication of workers.
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NRC (2006): Fluoride's Effect on Glucose Metabolism
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