ISSN: 0973-7510

E-ISSN: 2581-690X

Review Article | Open Access
Shani Kunjamma John, Vani Chandrapragasam and Pinaki Dey
Department of Biotechnology, Karunya Institute of Technology and Sciences, Karunya Nagar, Coimbatore – 641 114, Tamil Nadu, India.
J Pure Appl Microbiol. 2021;15(3):1029-1041 | Article Number: 6694 | © The Author(s). 2021
Received: 03/10/2020 | Accepted: 09/06/2021 | Published: 23/06/2021

Alzheimer’s disease is neurodegenerative dementia which has significant health complications in the old age group. An imbalance in gut microbiota can influence to cause several diseases like chronic disorders, depression, type II diabetics, and neurological disorders like AD. Aging is one of the major causes of the development of neurodegenerative disease due to the decreasing levels of neurotransmitters, oxidative stress, chronic inflammation, and apoptosis. These harmful effects of aging can be prevented by probiotics usage. The gut-microbiota is capable to control the brain function through the gut-brain axis. Lactobacillus strains are considered as beneficial microorganism because of its importance of the maintenance in healthy intestinal microflora, immunomodulation, and intestinal pathogenic intervention. They have diverse applications in the medical field with properties like antioxidant, anticancer, anti-inflammatory, anti-proliferative, anti-obesity, and anti-diabetic activities. Probiotic supplementation with Lactobacillus strains shows an optimistic trend to use it as a significant therapy for cognitive symptoms. This review article put forwards the significance of the gut-brain axis and the contribution of Lactobacillus strains as a probiotic supplement and its therapeutic innovations for future aspects and the limitation to treat AD-related pathogenesis are briefly elucidated.


Alzheimer’s disease, neurodegenerative disease, Lactobacillus strains, dementia, gastrointestinal tract, gut-microbiota, gut-brain axis

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© The Author(s) 2021. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License which permits unrestricted use, sharing, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.