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Neuroprotective effects and mechanism of saikosaponin A on acute spinal cord injury in rats
To investigate the effect of saikosaponin a (SSa) on the levels of immune inflammation in rats with acute spinal cord injury and its possible mechanism. Seventy-two Sprague Dawley rats (weighing, 220-250 g) were randomly divided into sham operation group (group A), spinal cord injury group (group B)...
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| Published in: | Zhongguo xiu fu chong jian wai ke za zhi 2017-07, Vol.31 (7), p.825-829 |
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| container_title | Zhongguo xiu fu chong jian wai ke za zhi |
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| creator | Zhu, Shuanglong Duan, Huiquan Liu, Yingfu Li, Guangzong Liu, Yingjie Huang, Mengqiang Chen, Xuyi Xu, Yunqiang |
| description | To investigate the effect of saikosaponin a (SSa) on the levels of immune inflammation in rats with acute spinal cord injury and its possible mechanism.
Seventy-two Sprague Dawley rats (weighing, 220-250 g) were randomly divided into sham operation group (group A), spinal cord injury group (group B), and SSa treatment group (group C) respectively, 24 rats in each group. The spinal cord injury model was induced by using the Allen's method in groups B and C; the spinous process and vertebral plate at both sides were cut off by lamina excision to expose the spinal cord in group A. The rats were given intraperitoneal injection of 10 mg/kg SSa in group C and equal volume of normal saline in group B at immediate after injury. The spinal cord tissue was harvested from 18 rats of each group at 24 hours after operation to measure the levels of tumor necrosis factor α (TNF-α) and interleukin 6 (IL-6) by ELISA, to detect the expressions of nuclear factor κB (NF-κB) P65, NF-κB P-P65, and aquaporin 4 (AQP4) by Western blot and to observe the morphology of spinal cord by HE staining. The motor function of the lower limbs was evaluated by BBB score and tiltboard experiment in 6 rats at 1, 3, 7, 14, 21, and 28 days after injury.
The BBB score and tiltboard experiment maximum angle were significantly higher in group A than groups B and C at each time point ( |
| doi_str_mv | 10.7507/1002-1892.201702106 |
| format | article |
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Seventy-two Sprague Dawley rats (weighing, 220-250 g) were randomly divided into sham operation group (group A), spinal cord injury group (group B), and SSa treatment group (group C) respectively, 24 rats in each group. The spinal cord injury model was induced by using the Allen's method in groups B and C; the spinous process and vertebral plate at both sides were cut off by lamina excision to expose the spinal cord in group A. The rats were given intraperitoneal injection of 10 mg/kg SSa in group C and equal volume of normal saline in group B at immediate after injury. The spinal cord tissue was harvested from 18 rats of each group at 24 hours after operation to measure the levels of tumor necrosis factor α (TNF-α) and interleukin 6 (IL-6) by ELISA, to detect the expressions of nuclear factor κB (NF-κB) P65, NF-κB P-P65, and aquaporin 4 (AQP4) by Western blot and to observe the morphology of spinal cord by HE staining. The motor function of the lower limbs was evaluated by BBB score and tiltboard experiment in 6 rats at 1, 3, 7, 14, 21, and 28 days after injury.
The BBB score and tiltboard experiment maximum angle were significantly higher in group A than groups B and C at each time point (
<0.05) and in group C than group B at 14, 21, and 28 days after operation (
<0.05). ELISA test showed that the concentrations of TNF-α and IL-6 were significantly lower in group A than groups B and C, and in group C than group B (
<0.05). Western blot results showed that the protein expression levels of NF-κB P65, NF-κB P-P65, and AQP4 were significantly lower in group A than groups B and C, and in group C than group B (
<0.05). HE staining demonstrated normal neurons of the spinal cord and no obvious lesion in group A; neuronal cells were observed in the injured area of group B, with hemorrhage, neutrophil infiltration, and nerve cell edema in the injured area; the neuronal cells were visible in the spinal cord of group C, with microglia mild hyperplasia, and the pathological changes were improved when compared with group B.
SSa has neuroprotective effects on acute spinal cord injury in rats by inhibiting NF-κB signaling pathway and AQP4 protein expression and reducing inflammation response and edema.</description><identifier>ISSN: 1002-1892</identifier><identifier>DOI: 10.7507/1002-1892.201702106</identifier><identifier>PMID: 29798527</identifier><language>chi</language><publisher>China</publisher><subject>Animals ; Neuroprotective Agents - pharmacology ; NF-kappa B - drug effects ; NF-kappa B - metabolism ; Oleanolic Acid - analogs & derivatives ; Oleanolic Acid - pharmacology ; Rats ; Rats, Sprague-Dawley ; Saponins - pharmacology ; Spinal Cord ; Spinal Cord Injuries - drug therapy ; Tumor Necrosis Factor-alpha - drug effects ; Tumor Necrosis Factor-alpha - metabolism</subject><ispartof>Zhongguo xiu fu chong jian wai ke za zhi, 2017-07, Vol.31 (7), p.825-829</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c176t-2e35db3a726af0735e958e35d1493a75e5a6549d994ca12993206348236e5dee3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29798527$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhu, Shuanglong</creatorcontrib><creatorcontrib>Duan, Huiquan</creatorcontrib><creatorcontrib>Liu, Yingfu</creatorcontrib><creatorcontrib>Li, Guangzong</creatorcontrib><creatorcontrib>Liu, Yingjie</creatorcontrib><creatorcontrib>Huang, Mengqiang</creatorcontrib><creatorcontrib>Chen, Xuyi</creatorcontrib><creatorcontrib>Xu, Yunqiang</creatorcontrib><title>Neuroprotective effects and mechanism of saikosaponin A on acute spinal cord injury in rats</title><title>Zhongguo xiu fu chong jian wai ke za zhi</title><addtitle>Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi</addtitle><description>To investigate the effect of saikosaponin a (SSa) on the levels of immune inflammation in rats with acute spinal cord injury and its possible mechanism.
Seventy-two Sprague Dawley rats (weighing, 220-250 g) were randomly divided into sham operation group (group A), spinal cord injury group (group B), and SSa treatment group (group C) respectively, 24 rats in each group. The spinal cord injury model was induced by using the Allen's method in groups B and C; the spinous process and vertebral plate at both sides were cut off by lamina excision to expose the spinal cord in group A. The rats were given intraperitoneal injection of 10 mg/kg SSa in group C and equal volume of normal saline in group B at immediate after injury. The spinal cord tissue was harvested from 18 rats of each group at 24 hours after operation to measure the levels of tumor necrosis factor α (TNF-α) and interleukin 6 (IL-6) by ELISA, to detect the expressions of nuclear factor κB (NF-κB) P65, NF-κB P-P65, and aquaporin 4 (AQP4) by Western blot and to observe the morphology of spinal cord by HE staining. The motor function of the lower limbs was evaluated by BBB score and tiltboard experiment in 6 rats at 1, 3, 7, 14, 21, and 28 days after injury.
The BBB score and tiltboard experiment maximum angle were significantly higher in group A than groups B and C at each time point (
<0.05) and in group C than group B at 14, 21, and 28 days after operation (
<0.05). ELISA test showed that the concentrations of TNF-α and IL-6 were significantly lower in group A than groups B and C, and in group C than group B (
<0.05). Western blot results showed that the protein expression levels of NF-κB P65, NF-κB P-P65, and AQP4 were significantly lower in group A than groups B and C, and in group C than group B (
<0.05). HE staining demonstrated normal neurons of the spinal cord and no obvious lesion in group A; neuronal cells were observed in the injured area of group B, with hemorrhage, neutrophil infiltration, and nerve cell edema in the injured area; the neuronal cells were visible in the spinal cord of group C, with microglia mild hyperplasia, and the pathological changes were improved when compared with group B.
SSa has neuroprotective effects on acute spinal cord injury in rats by inhibiting NF-κB signaling pathway and AQP4 protein expression and reducing inflammation response and edema.</description><subject>Animals</subject><subject>Neuroprotective Agents - pharmacology</subject><subject>NF-kappa B - drug effects</subject><subject>NF-kappa B - metabolism</subject><subject>Oleanolic Acid - analogs & derivatives</subject><subject>Oleanolic Acid - pharmacology</subject><subject>Rats</subject><subject>Rats, Sprague-Dawley</subject><subject>Saponins - pharmacology</subject><subject>Spinal Cord</subject><subject>Spinal Cord Injuries - drug therapy</subject><subject>Tumor Necrosis Factor-alpha - drug effects</subject><subject>Tumor Necrosis Factor-alpha - metabolism</subject><issn>1002-1892</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNo9kEtLxDAUhbNQnGGcXyBIlm465tEkzXIYfMGgG125KLftLUbbpCatMP_eiqOrc_i4XPgOIRecbYxi5pozJjJeWLERjBsmONMnZPlPF2SdkquY4lIXuZJnZCGssYUSZkleH3GKYYhhxHp0X0ixbeeWKPiG9li_gXepp6GlCdxHSDAE7zzd0uAp1NOINA3OQ0frEBvq_PsUD3PQCGM6J6ctdAnXx1yRl9ub5919tn-6e9ht91nNjR4zgVI1lQQjNLTMSIVWFT-M53amChVoldvG2rwGLqyVgmmZF0JqVA2iXJGr37-zxueEaSx7l2rsOvAYplQKlisxq8_uK3J5PJ2qHptyiK6HeCj_BpHf0X9hkA</recordid><startdate>20170715</startdate><enddate>20170715</enddate><creator>Zhu, Shuanglong</creator><creator>Duan, Huiquan</creator><creator>Liu, Yingfu</creator><creator>Li, Guangzong</creator><creator>Liu, Yingjie</creator><creator>Huang, Mengqiang</creator><creator>Chen, Xuyi</creator><creator>Xu, Yunqiang</creator><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>7X8</scope></search><sort><creationdate>20170715</creationdate><title>Neuroprotective effects and mechanism of saikosaponin A on acute spinal cord injury in rats</title><author>Zhu, Shuanglong ; Duan, Huiquan ; Liu, Yingfu ; Li, Guangzong ; Liu, Yingjie ; Huang, Mengqiang ; Chen, Xuyi ; Xu, Yunqiang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c176t-2e35db3a726af0735e958e35d1493a75e5a6549d994ca12993206348236e5dee3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>chi</language><creationdate>2017</creationdate><topic>Animals</topic><topic>Neuroprotective Agents - pharmacology</topic><topic>NF-kappa B - drug effects</topic><topic>NF-kappa B - metabolism</topic><topic>Oleanolic Acid - analogs & derivatives</topic><topic>Oleanolic Acid - pharmacology</topic><topic>Rats</topic><topic>Rats, Sprague-Dawley</topic><topic>Saponins - pharmacology</topic><topic>Spinal Cord</topic><topic>Spinal Cord Injuries - drug therapy</topic><topic>Tumor Necrosis Factor-alpha - drug effects</topic><topic>Tumor Necrosis Factor-alpha - metabolism</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhu, Shuanglong</creatorcontrib><creatorcontrib>Duan, Huiquan</creatorcontrib><creatorcontrib>Liu, Yingfu</creatorcontrib><creatorcontrib>Li, Guangzong</creatorcontrib><creatorcontrib>Liu, Yingjie</creatorcontrib><creatorcontrib>Huang, Mengqiang</creatorcontrib><creatorcontrib>Chen, Xuyi</creatorcontrib><creatorcontrib>Xu, Yunqiang</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>MEDLINE - Academic</collection><jtitle>Zhongguo xiu fu chong jian wai ke za zhi</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhu, Shuanglong</au><au>Duan, Huiquan</au><au>Liu, Yingfu</au><au>Li, Guangzong</au><au>Liu, Yingjie</au><au>Huang, Mengqiang</au><au>Chen, Xuyi</au><au>Xu, Yunqiang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Neuroprotective effects and mechanism of saikosaponin A on acute spinal cord injury in rats</atitle><jtitle>Zhongguo xiu fu chong jian wai ke za zhi</jtitle><addtitle>Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi</addtitle><date>2017-07-15</date><risdate>2017</risdate><volume>31</volume><issue>7</issue><spage>825</spage><epage>829</epage><pages>825-829</pages><issn>1002-1892</issn><abstract>To investigate the effect of saikosaponin a (SSa) on the levels of immune inflammation in rats with acute spinal cord injury and its possible mechanism.
Seventy-two Sprague Dawley rats (weighing, 220-250 g) were randomly divided into sham operation group (group A), spinal cord injury group (group B), and SSa treatment group (group C) respectively, 24 rats in each group. The spinal cord injury model was induced by using the Allen's method in groups B and C; the spinous process and vertebral plate at both sides were cut off by lamina excision to expose the spinal cord in group A. The rats were given intraperitoneal injection of 10 mg/kg SSa in group C and equal volume of normal saline in group B at immediate after injury. The spinal cord tissue was harvested from 18 rats of each group at 24 hours after operation to measure the levels of tumor necrosis factor α (TNF-α) and interleukin 6 (IL-6) by ELISA, to detect the expressions of nuclear factor κB (NF-κB) P65, NF-κB P-P65, and aquaporin 4 (AQP4) by Western blot and to observe the morphology of spinal cord by HE staining. The motor function of the lower limbs was evaluated by BBB score and tiltboard experiment in 6 rats at 1, 3, 7, 14, 21, and 28 days after injury.
The BBB score and tiltboard experiment maximum angle were significantly higher in group A than groups B and C at each time point (
<0.05) and in group C than group B at 14, 21, and 28 days after operation (
<0.05). ELISA test showed that the concentrations of TNF-α and IL-6 were significantly lower in group A than groups B and C, and in group C than group B (
<0.05). Western blot results showed that the protein expression levels of NF-κB P65, NF-κB P-P65, and AQP4 were significantly lower in group A than groups B and C, and in group C than group B (
<0.05). HE staining demonstrated normal neurons of the spinal cord and no obvious lesion in group A; neuronal cells were observed in the injured area of group B, with hemorrhage, neutrophil infiltration, and nerve cell edema in the injured area; the neuronal cells were visible in the spinal cord of group C, with microglia mild hyperplasia, and the pathological changes were improved when compared with group B.
SSa has neuroprotective effects on acute spinal cord injury in rats by inhibiting NF-κB signaling pathway and AQP4 protein expression and reducing inflammation response and edema.</abstract><cop>China</cop><pmid>29798527</pmid><doi>10.7507/1002-1892.201702106</doi><tpages>5</tpages></addata></record> |
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| ispartof | Zhongguo xiu fu chong jian wai ke za zhi, 2017-07, Vol.31 (7), p.825-829 |
| issn | 1002-1892 |
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| subjects | Animals Neuroprotective Agents - pharmacology NF-kappa B - drug effects NF-kappa B - metabolism Oleanolic Acid - analogs & derivatives Oleanolic Acid - pharmacology Rats Rats, Sprague-Dawley Saponins - pharmacology Spinal Cord Spinal Cord Injuries - drug therapy Tumor Necrosis Factor-alpha - drug effects Tumor Necrosis Factor-alpha - metabolism |
| title | Neuroprotective effects and mechanism of saikosaponin A on acute spinal cord injury in rats |
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