1
|
Wang HZ, Gao G, Yang QQ, Hou XM, Li BQ, Li Q, Si YC. [Study on therapeutic mechanism of Rehmanniae Radix Praeparata- Corni Fructus in sequelae of ischemic stroke based on network pharmacology technology]. Zhongguo Zhong Yao Za Zhi 2021; 45:6020-6027. [PMID: 33496143 DOI: 10.19540/j.cnki.cjcmm.20200914.401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In ischemic stroke sequela phase, Rehmanniae Radix Praeparata-Corni Fructus drug pair has the effect in protecting damaged neurons, but its mechanism has not been clear. In this study, network pharmacology was used to predict the mechanism of Rehmanniae Radix Praeparata-Corni Fructus in the treatment of ischemic stroke sequela. Through database search and literature retrie-val, 40 active ingredients of Rehmanniae Radix Praeparata and Corni Fructus were obtained, and their targets were obtained through STITCH and TCMSP databases. The targets of ischemic stroke sequela were obtained through OMIM,GAD,TTD and DrugBank databases. By screening the intersections of active ingredients targets and stroke treatment targets, 21 potential targets were obtained. The DAVID database was used for GO enrichment analysis and KEGG pathway analysis of potential targets. GO enrichment analysis showed that Rehmanniae Radix Praeparata-Corni Fructus were mainly involved in regulation of blood pressure, negative regulation of extrinsic apoptotic signaling and positive regulation of angiogenesis. KEGG pathway analysis showed that Rehmanniae Radix Praeparata-Corni Fructus could inhibit inflammatory response and apoptosis signaling pathway by regulating HIF-VEGFA signaling pathway in neural stem cell proliferation, TNF signaling pathway and NF-kappaB signaling pathway. Molecular docking technique was used to verify that Rehmanniae Radix Praeparata-Corni Fructus component has a good binding activity with potential targets. The results showed that in ischemic stroke sequela phase, Rehmanniae Radix Praeparata-Corni Fructus drug pair could play an important role in recovering neural function, promoting the proliferation of neural stem cells, angiogenesis, preventing neural cells apoptosis and regulating inflammatory factors.
Collapse
Affiliation(s)
- Han-Ze Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine Beijing 102488, China
| | - Ge Gao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine Beijing 102488, China
| | - Qian-Qian Yang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine Beijing 102488, China
| | - Xiao-Meng Hou
- School of Chinese Materia Medica, Beijing University of Chinese Medicine Beijing 102488, China
| | - Bing-Qi Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine Beijing 102488, China
| | - Qiang Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine Beijing 102488, China
| | - Yin-Chu Si
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine Beijing 100029, China
| |
Collapse
|
2
|
Han CY, Liu J, Wan F, Tian M, Zhang YL, He QH, Si YC. Effects of Tianqijiangtang capsule on survival, self-renewal and differentiation of hippocampal neural stem cells of embryonic rats cultured in high glucose medium. Am J Transl Res 2019; 11:5560-5572. [PMID: 31632529 PMCID: PMC6789250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 05/30/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVE This study aims to investigate the effects of Tianqijiangtang capsule on the survival, self-renewal and differentiation of hippocampal neural stem cells (NSCs) of embryonic rats cultured in high glucose medium. MATERIALS AND METHODS A cell model of diabetic encephalopathy was established. Cell viability was assessed to screen the optimal concentration of glucose for the cell model of diabetic encephalopathy. Then, the effects of Tianqijiangtang capsule on the proliferation and differentiation of NSCs, and the expression of vascular endothelial growth factor (VEGF) and brain-derived neurotrophic factor (BDNF) in the culture medium and cells were detected. RESULTS High glucose significantly reduced the ability of survival, proliferation and differentiation of NSCs, which was statistically significant, when compared to the control group (P < 0.05 or 0.01). Tianqijiangtang capsule significantly enhanced the survival, proliferation and differentiation of NSCs cultured in high glucose medium, which was statistically significant, when compared with the high glucose group (P < 0.05 or 0.01). The high glucose culture resulted in a significant decrease in VEGF and BDNF levels in culture medium and cells of NSCs. Tianqijiangtang capsule significantly increased the level of VEGF nuclear BDNF in cells and the culture medium, which was significantly higher, when compared to that in the high glucose group (P < 0.05 or 0.01). CONCLUSION Tianqijiangtang capsule enhances the level of neurotrophic factor synthesized and secreted by hippocampal NSCs cultured with high glucose through the autocrine and paracrine pathway, promotes the NSC survival, replication and differentiation of new neurons and astrocytes, and reduces the degeneration and necrosis of nerve cells.
Collapse
Affiliation(s)
- Chun-Yong Han
- Department of Sub-Health of TCM, School of Traditional Chinese Medicine, Hunan University of Chinese MedicineChangsha 410208, China
| | - Jing Liu
- Ben Best Medical Science & Technology (Beijing) Co., Ltd.Beijing 100036, China
| | - Feng Wan
- Department of Anatomy, School of Traditional Chinese Medicine, Beijing University of Chinese MedicineBeijing 100029, China
| | - Mo Tian
- Department of Anatomy, School of Traditional Chinese Medicine, Beijing University of Chinese MedicineBeijing 100029, China
| | - Yan-Li Zhang
- Department of Anatomy, School of Traditional Chinese Medicine, Beijing University of Chinese MedicineBeijing 100029, China
| | - Qing-Hu He
- Department of Sub-Health of TCM, School of Traditional Chinese Medicine, Hunan University of Chinese MedicineChangsha 410208, China
| | - Yin-Chu Si
- Department of Anatomy, School of Traditional Chinese Medicine, Beijing University of Chinese MedicineBeijing 100029, China
| |
Collapse
|
3
|
Feng LD, Tian Y, Wang X, Dai R, Cai S, Cao YJ, Si YC. Therapy of Dredging the Bowels Enhanced the Neuroprotective Effect of Nourishing Kidney Herbs on Hippocampal Cholinergic System in Alzheimer's Disease Model Rat Induced by A β 1-42. Evid Based Complement Alternat Med 2018; 2018:3282385. [PMID: 30298092 PMCID: PMC6157172 DOI: 10.1155/2018/3282385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 06/03/2018] [Accepted: 08/15/2018] [Indexed: 11/17/2022]
Abstract
BACKGROUND Therapy of nourishing kidney has been used for treating memory deficits of Alzheimer's disease (AD) for thousands of years based on traditional Chinese medicine. However, we found the therapy of dredging the bowels could alleviate both memory deficits and mental symptoms of AD in clinic. OBJECTIVE To determine whether the therapy of dredging the bowels could enhance the neuroprotective effect of nourishing kidney herbs for treating AD rats, and to explore the underlying mechanism of the combination of nourishing kidney and dredging the bowels (NKDB) herbs. METHODS 60 rats were randomly divided into sham-operated group (SOG), model group (MG), nourishing kidney group (NKG), dredging the bowels group (DBG), nourishing kidney and dredging the bowels group (NKDBG), and donepezil hydrochloride group (DHG). The model establishment was performed by injecting Aβ 1-42 into the hippocampal CA1 region. Animals received aqueous solution of Chinese herbal medicine or western medicine while SOG received only distilled water. Ability of learning and memory were assessed by Morris water maze. Acetylcholinesterase(AChE) and choline acetyltransferase (ChAT) activity and positive cells in the hippocampus were detected by the biochemical and immunofluorescent assay. RESULTS All rats were in the same baseline. While after model establishment, ability of learning and memory of MG, NKG, DBG, NKDBG, and DHG were significantly impaired compared with SOG. Whereas after treatment, ability of learning and memory of NKG, DBG, NKDBG, and DHG were significantly improved compared with MG. Additionally, AChE activity of NKG, DBG, and NKDBG was significantly decreased, meanwhile ChAT activity showed an increased tendency. The number of AChE-positive cells and ChAT-positive cells of both NKDBG and DHG were significantly decreased and increased respectively, superior to those when compared with NKG and DBG. What's more, there was no significant difference between NKDBG and DHG. CONCLUSION Therapy of dredging the bowels could enhance the neuroprotective effect of nourishing kidney herbs by reversing morphological damage of hippocampal cholinergic system. Furthermore, treatment with NKDB herbs could be effectively against AD, providing a practical therapeutic strategy in clinic.
Collapse
Affiliation(s)
- Lu-Da Feng
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Yang Tian
- Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
- Neuroscience Department, Tufts University, Boston MA, 02111, USA
| | - Xin Wang
- Research Center of TCM Information Engineering, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Run Dai
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Song Cai
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Yu-Jia Cao
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Yin-Chu Si
- Department of Anatomy, School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| |
Collapse
|
4
|
Romero-Nava R, Zhou DS, García N, Ruiz-Hernández A, Si YC, Sánchez-Muñoz F, Huang F, Hong E, Villafaña S. Evidence of alterations in the expression of orphan receptors GPR26 and GPR39 due to the etiology of the metabolic syndrome. J Recept Signal Transduct Res 2017; 37:422-429. [DOI: 10.1080/10799893.2017.1298133] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Rodrigo Romero-Nava
- Escuela Superior de Medicina del Instituto Politécnico Nacional, Laboratorio de Señalización Intracelular, Sección de Posgrado, Mexico
| | - De-Shan Zhou
- Department of Histology and Embryology, Capital Medical University, Beijing, China
| | - Noemí García
- Escuela Nacional de Medicina, Tecnológico de Monterrey, Monterrey, NL, Mexico
- Centro de Investigación Básica y de Transferencia, Hospital Zambrano Hellio, Garza García, NL, Mexico
| | - Armando Ruiz-Hernández
- Escuela Superior de Medicina del Instituto Politécnico Nacional, Laboratorio de Señalización Intracelular, Sección de Posgrado, Mexico
| | - Yin-Chu Si
- Department of Anatomy, Beijing University of Chinese Medicine, Beijing, China
| | - Fausto Sánchez-Muñoz
- Departamento de Inmunología, Instituto Nacional de Cardiología Ignacio Chávez, Ciudad de México, Mexico
| | - Fengyang Huang
- Departamento de Farmacología y Toxicología, Hospital Infantil de México Federico Gómez (HIMFG), México, Mexico
| | - Enrique Hong
- Departamento de Farmacobiología, Centro de Investigación y de Estudios Avanzados, Ciudad de México, México
| | - Santiago Villafaña
- Escuela Superior de Medicina del Instituto Politécnico Nacional, Laboratorio de Señalización Intracelular, Sección de Posgrado, Mexico
| |
Collapse
|
5
|
Wan F, Niu X, Song YL, Si YC. The Role of Chinese Herbs and Acupuncture on the Inflammation Reaction After Cerebral Ischemia. Curr Pharm Des 2016; 22:709-19. [PMID: 26635265 DOI: 10.2174/1381612822666151204001348] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 12/01/2015] [Indexed: 11/22/2022]
Abstract
As a complex pathological process, immune inflammatory reaction plays an important role in the injury by cerebral ischemia. Inflammatory mediators can promote each other to coregulate the immune inflammatory reaction. Inflammatory cytokines play a pivotal role in regulating the immune inflammatory reaction process. Chinese herbs and acupuncture can exert a protective effect against neuronal damage by cerebral ischemia by inhibiting the production and expression of inflammatory cytokines and adhesion molecules, effectively blocking the inflammatory reaction and reducing the apoptosis of nerve cells.
Collapse
Affiliation(s)
| | | | | | - Yin-Chu Si
- Department of Anatomy, School of Basic Medical Sciences, Beijing University of Chinese Medicine, Box: 100029, Beijing, China.
| |
Collapse
|
6
|
Si YC, Li Q, Xie CE, Niu X, Xia XH, Yu CY. Chinese herbs and their active ingredients for activating xue (blood) promote the proliferation and differentiation of neural stem cells and mesenchymal stem cells. Chin Med 2014; 9:13. [PMID: 24716802 PMCID: PMC3991899 DOI: 10.1186/1749-8546-9-13] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Accepted: 04/03/2014] [Indexed: 01/18/2023] Open
Abstract
Some Chinese herbs are anti-thrombolysis, and anti-inflammatory, improves brain RNA content, promotes brain protein synthesis, enhances dopamine function, regulates brain hormones, and improves microcirculation in central nervous system that might improve, repair and rehabilitation from the stroke and brain injury. Specific Chinese herbs and their components, such as Acanthopanax, Angelica, could maintain the survival of neural stem cells, and Rhodiola, Ganoderma spore Polygala, Tetramethylpyrazine, Gardenia, Astragaloside and Ginsenoside Rg1 promoted proliferation of neural stem cells, and Rhodiola, Astragaloside promoted differentiation of neural stem cell into neuron and glia in vivo. Astragalus, Safflower, Musk, Baicalin, Geniposide, Ginkgolide B, Cili polysaccharide, Salidroside, Astragaloside, Antler polypeptides, Ginsenoside Rg1, Panax notoginseng saponins promoted proliferation and differentiation of neural stem cells in vitro. Salvia, Astragalus, Ginsenoside Rg1, P. notoginseng saponins, Musk polypeptide, Muscone and Ginkgolide B promoted neural-directed differentiation of MSCs into nerve cells. These findings are encouraging further research into the Chinese herbs for developing drugs in treating patients of stroke and brain injury.
Collapse
Affiliation(s)
- Yin-Chu Si
- Department of Anatomy, Beijing University of Chinese Medicine, Chaoyang District, Beijing 100029, China.
| | | | | | | | | | | |
Collapse
|
7
|
Si YC, Zhang JP, Xie CE, Zhang LJ, Jiang XN. Effects of Panax Notoginseng Saponins on Proliferation and Differentiation of Rat Hippocampal Neural Stem Cells. Am J Chin Med 2012; 39:999-1013. [PMID: 21905288 DOI: 10.1142/s0192415x11009366] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We aimed to investigate the effects of Panax notoginseng saponins (PNS) on proliferation, differentiation and self-renewal of rat hippocampal neural stem cells (NSCs) in vitro. Rat hippocampal NSCs were isolated from post-natal day 1 (P1) rats and cultured in a serum-free medium. The neurospheres were identified by the expressions of nestin, class III β-tublin (Tuj-1) and glial fibrillary acid protein (GFAP). The cells were given PNS and subjected to oxygen glucose deprivation (OGD) as an in vitro model of brain ischemia reperfusion. The proliferation of NSCs was determined by MTT colorimetry, nestin/BrdU immunofluorescent double-labeling and RT-PCR. Differentiation of NSCs was assessed by immunofluorescent double-labeling of nestin/BrdU, nestin/vimentin, and nestin/Tuj-1. The primary cells and the first two passages of cells formed certain amount of neurospheres, the cells derived from a single cell clone also formed neurospheres. Nestin, BrdU, GFAP and Tuj-1-positive cells appeared in those neurospheres. Compared to the control group, PNS significantly promoted NSC proliferation and the expression of nestin/BrdU, and also enhanced Tuj-1, vimentin, and nestin mRNA expressions in hippocampal NSCs. PNS significantly increased area density, optical density and numbers of nestin/BrdU, nestin/vimentin, and nestin/Tuj-1 positive cells following OGD. These results indicate that PNS can promote proliferation and differentiation of hippocampus NCSs in vitro after OGD, suggesting its potential benefits on neurogenesis and neuroregeneration in brain ischemic injury.
Collapse
Affiliation(s)
- Yin-Chu Si
- Department of Anatomy, Beijing University of Chinese Medicine, Beijing, China
| | - Jian-Ping Zhang
- Department of Anatomy, Jinggangshan University, Jiangxi Province, China
| | - Chun-E Xie
- Dongfang Hospital of Beijing University of Chinese Medicine, Beijing, China
| | | | - Xiang-Ning Jiang
- Department of Neurology, University of California, San Francisco, USA
| |
Collapse
|
8
|
Liu XN, Niu X, Si YC, Jin XD. Influence of Xiexin decoction on gastric emptying and gastrointestinal hormones in rats. Shijie Huaren Xiaohua Zazhi 2006; 14:997-1000. [DOI: 10.11569/wcjd.v14.i10.997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To observe the effect of Banxia (BX), Shengjiang (SJ) and Gancao (GC) Xiexin decoction on the gastric evacuation and secretion of gastrointestinal hormones.
METHODS: Sixty rats were randomly and averagely divided into control group, BX, SJ and GC group. The rats in BX, SJ, and GC group were treated with the decoctions of BX, SJ, and GC respectively [5.67, 7.42, 5.36 g/(kg•d)]. Gastric residue was observed in all the rats with a marker of dextran blue-2000 to determine the capacity of gastric emptying. The levels of gastrointestinal hormones, including vasoactive intestinal peptide (VIP), substance P (SP), somatostatin (SS), gastrin (GAS), and motilin (MTL), in rat blood were measured by radioimmunoassay.
RESULTS: In comparison with that in the normal controls (99.9% ± 32.2%), gastric residue decreased significantly in BX group (66.1% ± 21.1%, P = 0.014) and increased significantly in SJ group (141.8% ± 21.1%, P = 0.012), while it didn't change notably in GC group. The levels of VIP and SP were markedly lower in BX group than those in the normal controls (348.1 ± 102.5 ng/L vs 445.8 ± 101.9 ng/L, P = 0.032; 47.0 ± 15.2 ng/L vs 63.0 ± 14.7 ng/L, P = 0.011). The levels of SS was markedly higher in BX and SJ group than those in the controls (562.3 ± 149.7, 553.9 ± 98.9 ng/L vs 461.7 ± 77.0 ng/L, P = 0.014 and P = 0.023, respectively). The levels of GAS and MTL were obviously higher in SJ (70.7 ± 11.9 ng/L, P= 0.011; 205.0 ± 22.0 ng/L, P = 0.001) and GC group (79.7 ± 9.3 ng/L, P = 0.001; 205.1 ± 43.1 ng/L, P = 0.014) than those in the controls (56.0 ± 11.5 ng/L; 162.6 ± 19.5 ng/L).
CONCLUSION: Three decoctions have different effects on the gastric motility and secretion of gastrointestinal hormones.
Collapse
|
9
|
Song XL, Gao YQ, Niu X, Si YC. [A review of experimental designs of compound compatibility law of traditional Chinese medicine]. Zhong Xi Yi Jie He Xue Bao 2003; 1:177-9. [PMID: 15339554 DOI: 10.3736/jcim20030309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
The paper discussed a variety of experimental designs of compound compatibility law of traditional Chinese medicine (TCM): study of whole formula and different ingredients of formula. The latter includes study of single ingredient, study of functional ingredient group, orthogonal design, clustering analysis, homogeneous design, factorial analysis and so on. It was proposed that experimental designs of formula should be based on the theory of TCM, and combined with modern sciences.
Collapse
Affiliation(s)
- Xiao-Li Song
- Department of Physiology, Beijing University of Traditional Chinese Medicine, Beijing 100029, China.
| | | | | | | |
Collapse
|
10
|
Chen CC, Yeh TL, Yang YK, Chen SJ, Lee IH, Fu LS, Yeh CY, Hsu HC, Tsai WL, Cheng SH, Chen LY, Si YC. Psychiatric morbidity and post-traumatic symptoms among survivors in the early stage following the 1999 earthquake in Taiwan. Psychiatry Res 2001; 105:13-22. [PMID: 11740971 DOI: 10.1016/s0165-1781(01)00334-1] [Citation(s) in RCA: 96] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
This study reports the clinical psychiatric presentations and post-traumatic symptoms among 525 survivors at Yu-Chyr District in Nantou County who sought psychiatric service in the first month following the devastating earthquake that struck the central area of Taiwan. All subjects received psychiatric interviews and assessments using the 12-item Chinese Health Questionnaire (CHQ-12) and a checklist for post-traumatic symptoms. The most common psychiatric symptoms reported were insomnia, palpitations, nervousness, and dizziness with headache. Eleven percent of the subjects reported having thought of death or having suicidal ideation. The mean score on the CHQ-12 was 6.43 (S.D.=2.89). The rate of probable psychiatric morbidity as defined by a CHQ-12 score > or =3 was 89.9%. Post-traumatic symptoms were very prevalent, particularly symptoms of re-experiencing the earthquake and hyper-arousal. Factors significantly associated with high psychiatric morbidity were being female, serious destruction of property and house, and personality characteristics of nervousness and obsessiveness. Findings of this study suggest that early psychiatric intervention, including pharmacological treatment for acute stress disorder, is indicated during the early stages following a disastrous earthquake.
Collapse
Affiliation(s)
- C C Chen
- Department of Psychiatry, College of Medicine, National Cheng Kung University and University Hospital, 138 Sheng-Li Road, 70428, Tainan, Taiwan, ROC.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Si YC, Zhu PC, Xu H. [Experimental study on effect of congsheng capsule on expression of brain derived neurotrophic factor and tyrosinkinase mRNA in forebrain of rats after cortical devascularization]. Zhongguo Zhong Xi Yi Jie He Za Zhi 2001; 21:849-51. [PMID: 12575383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To study the effect and mechanism of Congsheng Capsule (CSC) on brain derived neurotrophic factor (BDNF) and tyrosinkinase (trkB) mRNA in forebrain of rats after cortical devascularization. METHODS The rat devascularization model was established, and expression of BDNF mRNA and trkB mRNA were determined by hybridization in situ method. RESULTS Expression of BDNF mRNA and trkB mRNA reduced obviously in the cerebral cortex and hippocampus of devascularization model, especially in hippocampal CA1 subregion. There was trkB mRNA but no BDNF mRNA expression in the macrocyte basal nuclei (MBN). CSC significantly increased the decreased BDNF and trkB mRNA in cortex, hippocampus and MBN compared with placebo group. CONCLUSION CSC could salvage the degenerating neurons and maintain their survival after cortical devascularization by increasing the expression of BDNF and trkB mRNA and improving the synthesis of BDNF mRNA and trkB protein.
Collapse
Affiliation(s)
- Y C Si
- Department of Anatomy, Beijing University of TCM, Beijing 100029
| | | | | |
Collapse
|