{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T21:39:20Z","timestamp":1791841160715,"version":"4.3.4"},"reference-count":52,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2023,3,1]],"date-time":"2023-03-01T00:00:00Z","timestamp":1677628800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"the Ministry of Education of Korea","award":["5120200313836"],"award-info":[{"award-number":["5120200313836"]}]},{"name":"the Ministry of Education of Korea","award":["GRRCkyunghee2018-B05"],"award-info":[{"award-number":["GRRCkyunghee2018-B05"]}]},{"name":"GRRC program of Gyeonggi province","award":["5120200313836"],"award-info":[{"award-number":["5120200313836"]}]},{"name":"GRRC program of Gyeonggi province","award":["GRRCkyunghee2018-B05"],"award-info":[{"award-number":["GRRCkyunghee2018-B05"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Brain Sciences"],"abstract":"<jats:p>The seriousness of the diseases caused by aging have recently gained attention. Alzheimer\u2019s disease (AD), a chronic neurodegenerative disease, accounts for 60\u201380% of senile dementia cases. Continuous research is being conducted on the cause of Alzheimer\u2019s disease, and it is believed to include complex factors, such as genetic factors, the accumulation of amyloid beta plaques, a tangle of tau protein, oxidative stress, cholinergic dysfunction, neuroinflammation, and cell death. Sinapic acid is a hydroxycinnamic acid found in plant families, such as oranges, grapefruit, cranberry, mustard seeds, and rapeseeds. It exhibits various biological activities, including anti-inflammatory, anti-oxidant, anti-cancer, and anti-depressant effects. Sinapic acid is an acetylcholine esterase inhibitor that can be applied to the treatment of dementia caused by Alzheimer\u2019s disease and Parkinson\u2019s disease. However, electrophysiological studies on the effects of sinapic acid on memory and learning must still be conducted. Therefore, it was confirmed that sinapic acid was effective in long-term potentiation (LTP) using organotypic hippocampal segment tissue. In addition, the effect on scopolamine-induced learning and memory impairment was measured by oral administration of sinapic acid 10 mg\/kg\/day for 14 days, and behavioral experiments related to short-term and long-term spatial memory and avoidance memory were conducted. Sinapic acid increased the activity of the field excitatory postsynaptic potential (fEPSP) in a dose-dependent manner after TBS, and restored fEPSP activity in the CA1 region suppressed by scopolamine. The scopolamine-induced learning and memory impairment group showed lower results than the control group in the Y-maze, Passive avoidance (PA), and Morris water maze (MWM) experiments. Sinapic acid improved avoidance memory, short and long-term spatial recognition learning, and memory. In addition, sinapic acid weakened the inhibition of the brain-derived neurotrophic factor (BDNF), tropomyosin receptor kinase B (TrkB) and the activation of prostaglandin-endoperoxide synthase 2 (COX-2) and interleukin 1 beta (IL-1\u03b2) induced by scopolamine in the hippocampus. These results show that sinapic acid is effective in restoring LTP and cognitive impairment induced by the cholinergic receptor blockade. Moreover, it showed the effect of alleviating the reduction in scopolamine-induced BDNF and TrkB, and alleviated neuroinflammatory effects by inhibiting the increase in COX-2 and IL-1\u03b2. Therefore, we showed that sinapic acid has potential as a treatment for neurodegenerative cognitive impairment.<\/jats:p>","DOI":"10.3390\/brainsci13030427","type":"journal-article","created":{"date-parts":[[2023,3,2]],"date-time":"2023-03-02T03:06:43Z","timestamp":1677726403000},"page":"427","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["Effect of Sinapic Acid on Scopolamine-Induced Learning and Memory Impairment in SD Rats"],"prefix":"10.3390","volume":"13","author":[{"given":"In-Seo","family":"Lee","sequence":"first","affiliation":[{"name":"Department of Gerontology (AgeTech Service Convergence Major), Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17104, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0958-6111","authenticated-orcid":false,"given":"Ga-Young","family":"Choi","sequence":"additional","affiliation":[{"name":"Center for Research Equipment, Korea Basic Science Institute, Cheongju 28119, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Inturu","family":"Sreelatha","sequence":"additional","affiliation":[{"name":"Department of Gerontology (AgeTech Service Convergence Major), Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17104, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ji-Won","family":"Yoon","sequence":"additional","affiliation":[{"name":"Department of East-West Medicine, Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17104, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Suk-Hee","family":"Youn","sequence":"additional","affiliation":[{"name":"Department of East-West Medicine, Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17104, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9347-7902","authenticated-orcid":false,"given":"Sungho","family":"Maeng","sequence":"additional","affiliation":[{"name":"Department of Gerontology (AgeTech Service Convergence Major), Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17104, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ji-Ho","family":"Park","sequence":"additional","affiliation":[{"name":"Department of Gerontology (AgeTech Service Convergence Major), Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17104, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,3,1]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"275","DOI":"10.1515\/REVNEURO.1994.5.4.275","article-title":"Alzheimer\u2019s disease, beta-amyloidosis, and aging","volume":"5","author":"Coria","year":"1994","journal-title":"Rev. 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