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Monday, August 29, 2016

Dietary Minerals Calcium: Calcium and aluminum in Neurodegenerative disorders

Kyle J. Norton(Scholar, Master of Nutrients), all right reserved.
Health article writer and researcher; Over 10.000 articles and research papers have been written and published on line, including world wide health, ezine articles, article base, healthblogs, selfgrowth, best before it's news, the karate GB daily, etc.,.
Named TOP 50 MEDICAL ESSAYS FOR ARTISTS & AUTHORS TO READ by Disilgold.com Named 50 of the best health Tweeters Canada - Huffington Post
Nominated for shorty award over last 4 years
Some articles have been used as references in medical research, such as international journal Pharma and Bio science, ISSN 0975-6299.

                                 Dietary Minerals 

Dietary Minerals are the group of minerals which is essential for our body to sustain normal functions and physical health.

                                      Calcium

Calcium, a trace mineral plays an important role in build and maintain strong bones and teeth, found abundantly in meat, poultry, fish, nut, seeds, bean, etc. As we age, calcium is absorbed less effectively.

     Calcium and aluminum in Neurodegenerative disorders

Both calcium and aluminum have been implicated in the cell damage and death that occurs in several neurodegenerative disorders including Alzheimer's disease (AD). In the study to examine the effects of experimentally elevated intraneuronal levels of aluminum ([Al]i) and/or calcium ([Ca2+]i) on neuronal degeneration and antigenic alterations in the microtubule-associated protein tau in cell cultures of rat hippocampus and human cerebral cortex, showed that Exposure of cultures to Al3+ alone (200 microM) for up to 6 d did not result in neuronal degeneration. Neurons exposed to the divalent cation ionophore A23187 degenerated within 4 h when Ca2+ was present in the culture medium whether or not Al3+ was present. Measurements of [Ca2+]i using the calcium indicator dye fura-2 demonstrated a direct relationship between increased [Ca2+]i and neuronal degeneration. In contrast, neurons did not degenerate when exposed to A23187 in the presence of Al3+ and the absence of Ca2+, despite a 10-fold elevation in [Al]i as measured by laser microprobe mass spectrometry. Calcium influx, but not aluminum influx, elicited antigenic changes in tau similar to those seen in AD neurofibrillary tangles. Neurons exposed to glutamate in the presence of Al3+ but in the absence of Ca2+ were not vulnerable to injury. Finally, increased [Al]i occurred in neurons that degenerated as the result of exposure to glutamate indicating that aluminum associates with degenerating neurons(10).

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