Journal article
Changes in the Nitric Oxide System Contribute to Effect of Procyanidins Extracted from the Lotus Seedpod Ameliorating Memory Impairment in Cognitively Impaired Aged Rats
Rejuvenation research, Vol.14(1), pp.33-43
02/01/2011
DOI: 10.1089/rej.2010.1076
PMID: 21269138
Abstract
The major purpose of this study was to determine the effect of procyanidins extracted from the lotus seedpod (LSPC) on the nitric oxide (NO) system in the hippocampus and cerebral cortex in cognitively impaired aged rats. Using the Morris water maze, aged-unimpaired (AU) and aged-impaired (AI) rats were chosen from aged rats. All aged rats exhibited elevated inducible nitric oxide synthase (iNOS) activities and decreased neuronal nitric oxide synthase (nNOS) activities in the both brain regions. The changes were more pronounced in the brain of AI rats, especially in the hippocampus. Furthermore, AI rats greatly lowed the percentage of change of hippocampal nNOS activity in the presence of protein kinase inhibitors or phosphatase inhibitor, which meant that AI animals existed in a hardly modified nNOS dephosphorylated state in hippocampus. LSPC supplementation [50, 100 mg/kg of body weight (BW),
per os
(p.o.)] for 7 weeks significantly decreased iNOS activities and improved hippocampal nNOS phosphorylation status in AI animals. These results suggested that changes in the NO system may involve in the ameliorative effects of LSPC on cognitive deficits in AI animals.
Details
- Title: Subtitle
- Changes in the Nitric Oxide System Contribute to Effect of Procyanidins Extracted from the Lotus Seedpod Ameliorating Memory Impairment in Cognitively Impaired Aged Rats
- Creators
- Jiqu Xu - 2Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, P.R. ChinaShuang Rong - 3MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. ChinaBijun Xie - 4College of Food Science and Technology, Huazhong Agricultural University, Wuhan, P.R. ChinaZhida Sun - Huazhong Agricultural UniversityQianchun Deng - 2Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, P.R. ChinaWei Bao - 3MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. ChinaDi Wang - 3MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. ChinaPing Yao - 3MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. ChinaFenghong Huang - 2Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, P.R. ChinaLiegang Liu - 3MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
- Resource Type
- Journal article
- Publication Details
- Rejuvenation research, Vol.14(1), pp.33-43
- Publisher
- Mary Ann Liebert, Inc
- DOI
- 10.1089/rej.2010.1076
- PMID
- 21269138
- ISSN
- 1549-1684
- eISSN
- 1557-8577
- Language
- English
- Date published
- 02/01/2011
- Academic Unit
- Epidemiology; Fraternal Order of Eagles Diabetes Research Center
- Record Identifier
- 9983995002702771
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