{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T20:14:07Z","timestamp":1791317647617,"version":"4.3.1"},"reference-count":40,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2025,5,8]],"date-time":"2025-05-08T00:00:00Z","timestamp":1746662400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Korea Institute of Planning and Evaluation for Technology in Food, Agriculture, Forestry (IPET)","award":["RS-2024-00402311"],"award-info":[{"award-number":["RS-2024-00402311"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Antioxidants"],"abstract":"<jats:p>Live Leuconostoc mesenteroides H40 has been reported to have probiotic properties; however, the effect of its live probiotic form on cognitive ability has not been reported. This study investigated modulatory effects of the probiotic L. mesenteroides H40 in an ICR mouse model (male) of cognitive disorders. Cognitive disorders were induced in mice by the addition of scopolamine (1 mg\/kg\/day) with donepezil (2 mg\/kg\/day) as a medicinal control. L. mesenteroides H40 significantly attenuated scopolamine-induced cognitive disorder in the novel object recognition and Y-maze tests in a concentration-dependent manner. L. mesenteroides H40 decreased amyloid \u03b2 levels, but increased \u03b2-secretase levels. The mRNA expression levels of inducible nitric oxide synthase (iNOS) and cyclooxygenase (COX)-2 significantly decreased following L. mesenteroides H40 treatment. Additionally, TNF-\u03b1, IL-1\u03b2, and PGE2 protein expression was decreased. Acetylcholine, acetylcholinesterase, choline acetyltransferase, brain-derived neurotrophic factor (BDNF), and cAMP response element-binding protein (CREB) levels were increased in the brain tissues. The antioxidant effects of superoxide dismutase, catalase, and glutathione peroxidase were also alleviated. We demonstrated that L. mesenteroides H40 exhibits neuroprotective effects through anti-inflammatory, synaptic plasticity regulation, and antioxidant effects. Thus, the probiotic L. mesenteroides H40 could be used as a prophylactic functional food for cognitive disorders.<\/jats:p>","DOI":"10.3390\/antiox14050565","type":"journal-article","created":{"date-parts":[[2025,5,8]],"date-time":"2025-05-08T11:37:02Z","timestamp":1746704222000},"page":"565","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Preventive Effect of Probiotic Leuconostoc mesenteroides H40 Against Cognitive Disorder by Anti-Inflammatory, Synaptic Plasticity Regulation, and Antioxidant Effects"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2395-550X","authenticated-orcid":false,"given":"Na-Kyoung","family":"Lee","sequence":"first","affiliation":[{"name":"Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 05029, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yunjung","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Food and Nutrition, Kyungnam University, Changwon 51767, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Minhye","family":"Won","sequence":"additional","affiliation":[{"name":"Department of Food and Nutrition, Kyungnam University, Changwon 51767, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nayeong","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Food and Nutrition, Kyungnam University, Changwon 51767, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3462-6090","authenticated-orcid":false,"given":"Eunju","family":"Park","sequence":"additional","affiliation":[{"name":"Department of Food and Nutrition, Kyungnam University, Changwon 51767, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9891-7703","authenticated-orcid":false,"given":"Hyun-Dong","family":"Paik","sequence":"additional","affiliation":[{"name":"Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 05029, Republic of Korea"},{"name":"View of Creativity, GHBio Co., Ltd., 120 Neungdong-Ro, Konkuk University, Seoul 05029, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,5,8]]},"reference":[{"key":"ref_1","unstructured":"WHO (World Health Organization) (2020). 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