Chronic administration of aluminum–fluoride or sodium–fluoride to rats in drinking water: alterations in neuronal and cerebrovascular integrity
| Autor: | William J. Horvath, Julie A. Varner, Karl F. Jensen, Robert L. Isaacson |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Male
medicine.medical_specialty Pathology H&E stain Kidney Fluorides Cresyl violet chemistry.chemical_compound Internal medicine Sodium fluoride medicine Animals Tissue Distribution Serum amyloid A Aluminum Compounds Molecular Biology Cerebral Cortex Neurons Serum Amyloid A Protein Amyloid beta-Peptides Eosin General Neuroscience Neurotoxicity Brain medicine.disease Immunohistochemistry Rats Endocrinology Immunoglobulin M chemistry Cerebrovascular Circulation Toxicity Sodium Fluoride Neurology (clinical) Fluoride Developmental Biology |
| Zdroj: | Brain Research. 784:284-298 |
| ISSN: | 0006-8993 |
| Popis: | This study describes alterations in the nervous system resulting from chronic administration of the fluoroaluminum complex (AlF3) or equivalent levels of fluoride (F) in the form of sodium-fluoride (NaF). Twenty seven adult male Long-Evans rats were administered one of three treatments for 52 weeks: the control group was administered double distilled deionized drinking water (ddw). The aluminum-treated group received ddw with 0.5 ppm AlF3 and the NaF group received ddw with 2.1 ppm NaF containing the equivalent amount of F as in the AlF3 ddw. Tissue aluminum (Al) levels of brain, liver and kidney were assessed with the Direct Current Plasma (DCP) technique and its distribution assessed with Morin histochemistry. Histological sections of brain were stained with hematoxylin & eosin (H&E), Cresyl violet, Bielschowsky silver stain, or immunohistochemically for beta-amyloid, amyloid A, and IgM. No differences were found between the body weights of rats in the different treatment groups although more rats died in the AlF3 group than in the control group. The Al levels in samples of brain and kidney were higher in both the AlF3 and NaF groups relative to controls. The effects of the two treatments on cerebrovascular and neuronal integrity were qualitatively and quantitatively different. These alterations were greater in animals in the AlF3 group than in the NaF group and greater in the NaF group than in controls. |
| Databáze: | OpenAIRE |
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