Wednesday, November 20, 2019

Effect of Green Tea Consumption on Alzheimer’s disease

The intake of tea, which contains caffeine and tea polyphenols, may be important. High caffeine intake may reduce the risk for dementia. Particularly in Alzheimer’s disease, the green tea catechin polyphenols have been reported to have neuro-protective effects such as anti-oxidative stress, anti-inflammation, inhibition of amyloid-beta aggregation, and anti-apoptosis.

Alzheimer’s disease is one of the most common neurodegenerative disorders worldwide. Its incidence is gradually increasing because of an aging demographic. Therefore, Alzheimer’s disease prevention and modification is important to improve the health status of older adults. Oxidative stress is a component of the pathological mechanisms underlying Alzheimer’s disease.

Alzheimer’s disease is the second leading health concern among adults following cancer, being the sixth leading cause of death, and also the only disease among the top 10 that cannot be prevented, cured, or treated.

Catechins, which are bioactive components of tea, have antioxidative and anti-inflammatory effects. Catechins may contribute to protection from neuro-degeneration. Beverages containing plant polyphenols have been recommended as a natural complementary therapy for alleviating the symptoms of A Alzheimer’s disease. Specifically, one study reported that language and verbal memory were positively associated with the intake of green tea catechins and black tea theaflavins.

Bioactive green tea components reportedly have antioxidant and anti-inflammatory activities, induce protein kinase C activation, inhibit acetylcholine esterase activity, and modulate other neurotransmission systems (e.g., GABAergic, glutamatergic, dopaminergic, and serotonergic neurotransmission).

Data from several cross-sectional studies consistently showed that tea drinking is associated with better performance on cognitive tests. Tea consumption is considered to be one simple lifestyle adjustment that may either prevent or treat the cognitive declines associated with neurodegenerative Alzheimer’s disease.
Effect of Green Tea Consumption on Alzheimer’s disease  

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