Most common diseases of 50 plus - Diseases of Central Nervous system - Free radical causes of dementia (Alzheimer’s disease)

By Kyle J. Norton (Draft Article)
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.,.
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               Diseases of Central Nervous system

                                 Dementia

About 5-8% of all people over the age of 65 have some form of dementia, and this number doubles every five years above that age. Dementia is the loss of mental ability, severe enough to interfere with people's every life and Alzheimer's disease is the most common type of dementia in aging people.
II. Causes of dementia
B. Free radical causes of dementia
B.1. Alzheimer’s disease
1. Free radical and Alzheimer’s disease
Free radicals causes Alzheimer’s disease is well defined in many researches(25)(26). Oxidative stress-induced injury involved the selective modification of different intracellular proteins may lead to the neurofibrillary degeneration of neurons in the brain(27)(28) (source)

2.  Antioxidants and Alzheimer’s disease
a. Docosahexaenoic acid (DHA)
Change of brain aging in DHA metabolism, was found in patients with Alzheimer's disease(29). DHA, a naturally occurring component found in every cell membrane(29) increases phosphatidylserine(30)(31) is important in decreased production of proinflammatory omega-6 eicosanoids causes of Alzheimer's disease(31) and in improved the memory of animals with Alzheimer's disease by suppressing oxidative damage in the brain(32).

b. Vitamin E
Vitamin E, and drugs(memantine) reduced generalized inflammation, may slow the decline of mental and physical abilities in people with Alzheimer's disease (AD) over the long term(33). Also vitamin E inhibits cells damage and cells death caused by beta-amyloid(34)(35), which is toxic to brain cells(36).

c. Phosphatidylserine
Patients who had Alzheimer’s disease took 100 milligrams per day (mg/day) of phosphatidylserine scored significantly better on standardized memory tests at the end of the 12-week trial period than patients without(37)(38).

d. Antioxidants
Antioxidant are found at much lower levels for patients with Alzheimer’s disease(39)(40)(41) , such as serum of vitamin A, C, E, zinc and transfferin.

e. Muscarinic cholinergic receptors 
 Alzheimer’s disease patients showed to exhibit the significant loss of muscarinic cholinergic receptors neurons(42) causes of reduced volume of neural transmission that can lead to loss of memory(43).

f. Etc.

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