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Abstract Title:

Altered gut microbiota and intestinal permeability in Parkinson's disease: Pathological highlight to management.

Abstract Source:

Neurosci Lett. 2019 Sep 24 ;712:134516. Epub 2019 Sep 24. PMID: 31560998

Abstract Author(s):

Shakshi Sharma, Anupam Awasthi, Shamsher Singh

Article Affiliation:

Shakshi Sharma

Abstract:

Parkinson's disease (PD) is a multifactorial neurodegenerative disorder, affecting 3.7% of the population over 65 years of age. PD involves degeneration of dopaminergic neurons in the substantia nigra pars compacta (SNPC) with deficiency of dopamine. Genetic factors like SNCA, PARK-2, PARK-7, PINK-1 and LRRK-2 as well as environmental toxins enhance alpha-synuclein, amyloidβ (beta) and τ (tau) proteins aggregation. Moreover, oxidative stress, mitochondrial dysfunctioning, neuroinflammation, prion like phenomena, excitotoxicity, mutations etc are known to cause pathological insult in PD. Recently, facts indicates strong correlation between gut-brain axis and PD. Thecommunication between the gastrointestinal system (GIT) and central nervous system is bidirectional and it is hypothesized that PD arises in the gut and spreads to brain via vagus nerve that helps to propagate the alpha-synuclein that target brain. The Lewy bodies are found in olfactory bulb, dorsalmotor vagal nerve and the ENS of the gut indicate peripheral and central correlation. The alteration of gut microbial flora leads to GIT disturbance which cause neuroinflammation by prion alpha-synuclein expression and produces PD like symptoms. Persistent gut inflammation with spontaneous neuroinflammation is yet need to confirm but increased intestinal permeability and disrupt function of GIT is known to produce non-motor symptoms of PD. The present review is aimed to explore mechanistic approach for gut associated PD symptoms as well as use of probiotics and prebiotics as therapeutic approach to retain gut microbial flora and prevent PD like symptoms.

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