PREM KISHAN SINGHA (2026) “Gut–Brain Axis, Microbiome, and Neurodegenerative Diseases: Mechanistic Insights, Therapeutic Targets, and Translational Opportunities”, International Journal of Computer Information Systems and Industrial Management Applications, 18(6s), pp. 1390–1403. doi: 10.70917/ijcisim-2026-5908.