目的研究导致肝硬化合并肝肿瘤患者行不规则肝切除术后再手术的相关因素。方法回顾性分析2012年2月至2016年2月期间在我院外科行不规则性肝切除术的152例肝硬化合并肝肿瘤患者的临床资料。根据患者是否再次手术,分为再手术组和非再手术...目的研究导致肝硬化合并肝肿瘤患者行不规则肝切除术后再手术的相关因素。方法回顾性分析2012年2月至2016年2月期间在我院外科行不规则性肝切除术的152例肝硬化合并肝肿瘤患者的临床资料。根据患者是否再次手术,分为再手术组和非再手术组。分析患者再手术情况及相关临床参数,行Logistic回归分析再手术的相关危险因素。结果肝硬化合并肝肿瘤患者,再手术率为13.2%(20/152)。再手术的主要原因为切口裂开6例,腹腔出血10例;腹腔感染4例,其中合并胆瘘1例。再手术组术前ALB水平低于非再手术组,术前合并有糖尿病、术中出血量水平及术中血浆输入量均高于非再手术组,两组比较差异有统计学意义(P<0.05)。Logistic回归分析结果显示,术前合并有糖尿病、ALB水平<35 g/L以及术中出血量≥500 m L者与行不规则肝切除术后再次手术的发生密切相关(P<0.05)。结论术前合并有糖尿病、ALB水平<35 g/L以及术中出血量≥500 m L者是行不规则肝切除术后再次手术的独立危险因素。展开更多
OBJECTIVE:To explore the underlying mechanism of acupuncture on nerve repair by investigating its effect on the differentiation of glial cells and the repair of glial scars.METHODS:Sprague-Dawley rats were randomly al...OBJECTIVE:To explore the underlying mechanism of acupuncture on nerve repair by investigating its effect on the differentiation of glial cells and the repair of glial scars.METHODS:Sprague-Dawley rats were randomly allocated to three groups:normal group,model group,and acupuncture group.Acupuncture was applied at Renzhong(GV26),Baihui(GV20),Fengfu(GV16),Yamen(GV15)and Hegu(LI4)within 12 h after TBI modeling with a frequency of one session per day for 4 weeks.Neurobehavioral assessment,hematoxylin and eosin staining,immunofluorescence detection,and magnetic resonance imaging scanning were performed on days 3,7,14,and 28 after modeling of traumatic brain injury(TBI).RESULTS:Acupuncture promoted the proliferation of glial cells and glial scars at an early stage but inhibited the proliferation of glial cells and glial scars at a late stage.Morphological observations and immunofluorescence histochemistry showed that the morphology of the perilesional cortex in the acupuncture group was improved and the number of neurons was increased when compared with the model group.The lesion size of ipsilateral brain parenchyma in the acupuncture group was smaller than in the model group on days 7,14,and 28(P<0.05)after TBI modeling.CONCLUSIONS:Acupuncture might have a bidirectional regulatory effect on glial scar repair after TBI by promoting the proliferation of glial cells and glial scars to limit the injured area and relieve nerve injury during the early stages,and by inhibiting glial scar hyperplasia to benefit the regeneration and repair of neurons and axons and promote neurological function recovery during the later stages.展开更多
OBJECTIVE: To evaluate the effect of acupuncture on neuroinflammation in traumatic brain injury(TBI) rats by stimulating Yamen(GV 15), Fengfu(GV16), Baihui(GV 20), Shuigou(GV 26) and Hegu(LI 4)acupoints and to investi...OBJECTIVE: To evaluate the effect of acupuncture on neuroinflammation in traumatic brain injury(TBI) rats by stimulating Yamen(GV 15), Fengfu(GV16), Baihui(GV 20), Shuigou(GV 26) and Hegu(LI 4)acupoints and to investigate the mechanism underpinning this effect.METHODS: A TBI model was induced in SpragueDawley rats using Feeney's freefall impact method.Acupuncture to stimulate the Yamen(GV 15), Fengfu(GV 16), Baihui(GV 20), Shuigou(GV 26) and Hegu(LI 4) acupoints was performed on the TBI rats. After 3 consecutive days of acupuncture treatment, we investigated signal molecules, receptors and microglia related to neuroinflammation in brain tissue of the TBI rats and analyzed the possi-ble mechanism underlying the effect of acupuncture on neuroinflammation.RESULTS: After the acupuncture treatment, ionized calcium binding adaptor molecule 1(Iba1), a protein specific to microglia, was investigated. In the cortical layer of damaged brain tissue in TBI rats,the Iba1-positive area was 3.3% ± 0.9% in the rats that received acupuncture compared with 5.2% ±1.4% in the TBI rats that did not receive acupuncture, and the microglia were smaller with more slender protrusions in the acupuncture-treated rats.This result indicates that acupuncture can significantly reduce microglia activation in TBI rats. A possible mechanism for this effect is that acupuncture reduces the expression of autotaxin and lysophosphatidic acid. Together, these constitute the autotaxin-lysophosphatidic acid axis, which induces microglial activation in the brains of TBI rats. Acupuncture treatment may downregulate the expression of Lysophosphatidic acid(LPA) receptor(LPAR) 1 and LPAR2 on the microglial cytomembrane, which affects the microglia activation process.CONCLUSION: Acupuncture stimulating the Yamen(GV 15), Fengfu(GV 16), Baihui(GV 20),Shuigou(GV 26) and Hegu(LI 4) acupoints can effectively inhibit the development of neuroinflammation after TBI. One possible mechanism for this effect is that acupuncture downregulates LPA synthesis and affects the LPA-LPAR pathway by inhibiting LPAR1 and LPAR2, thereby inhibiting microglial activation and reducing neuroinflammation.展开更多
文摘目的研究导致肝硬化合并肝肿瘤患者行不规则肝切除术后再手术的相关因素。方法回顾性分析2012年2月至2016年2月期间在我院外科行不规则性肝切除术的152例肝硬化合并肝肿瘤患者的临床资料。根据患者是否再次手术,分为再手术组和非再手术组。分析患者再手术情况及相关临床参数,行Logistic回归分析再手术的相关危险因素。结果肝硬化合并肝肿瘤患者,再手术率为13.2%(20/152)。再手术的主要原因为切口裂开6例,腹腔出血10例;腹腔感染4例,其中合并胆瘘1例。再手术组术前ALB水平低于非再手术组,术前合并有糖尿病、术中出血量水平及术中血浆输入量均高于非再手术组,两组比较差异有统计学意义(P<0.05)。Logistic回归分析结果显示,术前合并有糖尿病、ALB水平<35 g/L以及术中出血量≥500 m L者与行不规则肝切除术后再次手术的发生密切相关(P<0.05)。结论术前合并有糖尿病、ALB水平<35 g/L以及术中出血量≥500 m L者是行不规则肝切除术后再次手术的独立危险因素。
基金Supported by National Natural Science Foundation of China:Explore the Effect and Mechanism of Acupuncture for Neuroinflammation and Glial Scars After Traumatic Brain Injury Based on the Signaling Pathway of TLR2/4-NFκB(No.81574066)National Natural Science Foundation of China:Explore the Effect of Acupuncture on Brain Function Remodeling and the Benign Bidirectional Regulation to Autophagy After TBI(No.81873362)+4 种基金National Natural Science Foundation of China:Basing on the Theory of Bidirectional Benign Regulation to Investigate the Mechanism of Acupuncture Regulating Microglia-mediated Immune Imbalance to Promote Nerve Repair After TBI(No.82174483)National Natural Science Foundation of China:Based on Iron Metabolic Pathway to Explore the Mechanism of Electroacupuncture Inhibits Ferroptosis to Reduce TBI Nerve Injury(No.82205249)China Postdoctoral Science Foundation:the Effect and Mechanism of Electroacupuncture in Promoting Neural Function Repair by Regulating Iron Metabolism in Neurons of TBI Rats(2022M710912)Natural Science Foundation of Guangdong Province:the Effect and Mechanism of Acupuncture on the Linkage of Neuron Autophagy and Apoptosis after TBI Based on PI3K/AKT/mTOR Signaling Pathway(2021A1515011219)Natural Science Foundation of Guangdong Province:the Effect and Mechanism of Acupuncture on Microglial Polarization Mediated Immune Homeostasis After TBI Based on TREM2/STAT6/NFκB Signaling Pathway(2021A1515110146)。
文摘OBJECTIVE:To explore the underlying mechanism of acupuncture on nerve repair by investigating its effect on the differentiation of glial cells and the repair of glial scars.METHODS:Sprague-Dawley rats were randomly allocated to three groups:normal group,model group,and acupuncture group.Acupuncture was applied at Renzhong(GV26),Baihui(GV20),Fengfu(GV16),Yamen(GV15)and Hegu(LI4)within 12 h after TBI modeling with a frequency of one session per day for 4 weeks.Neurobehavioral assessment,hematoxylin and eosin staining,immunofluorescence detection,and magnetic resonance imaging scanning were performed on days 3,7,14,and 28 after modeling of traumatic brain injury(TBI).RESULTS:Acupuncture promoted the proliferation of glial cells and glial scars at an early stage but inhibited the proliferation of glial cells and glial scars at a late stage.Morphological observations and immunofluorescence histochemistry showed that the morphology of the perilesional cortex in the acupuncture group was improved and the number of neurons was increased when compared with the model group.The lesion size of ipsilateral brain parenchyma in the acupuncture group was smaller than in the model group on days 7,14,and 28(P<0.05)after TBI modeling.CONCLUSIONS:Acupuncture might have a bidirectional regulatory effect on glial scar repair after TBI by promoting the proliferation of glial cells and glial scars to limit the injured area and relieve nerve injury during the early stages,and by inhibiting glial scar hyperplasia to benefit the regeneration and repair of neurons and axons and promote neurological function recovery during the later stages.
基金Supported by the Natural Science Foundation of China(No.81704156)the Natural Science Foundation of Guangdong Province,China(No.2016A030310093,2017A030310024)+1 种基金Administration of Traditional Chinese Medicine of Guangdong Province,China(No.20161067,20181070)the Fundamental Research Funds for the Central Universities,China(No.21616318)。
文摘OBJECTIVE: To evaluate the effect of acupuncture on neuroinflammation in traumatic brain injury(TBI) rats by stimulating Yamen(GV 15), Fengfu(GV16), Baihui(GV 20), Shuigou(GV 26) and Hegu(LI 4)acupoints and to investigate the mechanism underpinning this effect.METHODS: A TBI model was induced in SpragueDawley rats using Feeney's freefall impact method.Acupuncture to stimulate the Yamen(GV 15), Fengfu(GV 16), Baihui(GV 20), Shuigou(GV 26) and Hegu(LI 4) acupoints was performed on the TBI rats. After 3 consecutive days of acupuncture treatment, we investigated signal molecules, receptors and microglia related to neuroinflammation in brain tissue of the TBI rats and analyzed the possi-ble mechanism underlying the effect of acupuncture on neuroinflammation.RESULTS: After the acupuncture treatment, ionized calcium binding adaptor molecule 1(Iba1), a protein specific to microglia, was investigated. In the cortical layer of damaged brain tissue in TBI rats,the Iba1-positive area was 3.3% ± 0.9% in the rats that received acupuncture compared with 5.2% ±1.4% in the TBI rats that did not receive acupuncture, and the microglia were smaller with more slender protrusions in the acupuncture-treated rats.This result indicates that acupuncture can significantly reduce microglia activation in TBI rats. A possible mechanism for this effect is that acupuncture reduces the expression of autotaxin and lysophosphatidic acid. Together, these constitute the autotaxin-lysophosphatidic acid axis, which induces microglial activation in the brains of TBI rats. Acupuncture treatment may downregulate the expression of Lysophosphatidic acid(LPA) receptor(LPAR) 1 and LPAR2 on the microglial cytomembrane, which affects the microglia activation process.CONCLUSION: Acupuncture stimulating the Yamen(GV 15), Fengfu(GV 16), Baihui(GV 20),Shuigou(GV 26) and Hegu(LI 4) acupoints can effectively inhibit the development of neuroinflammation after TBI. One possible mechanism for this effect is that acupuncture downregulates LPA synthesis and affects the LPA-LPAR pathway by inhibiting LPAR1 and LPAR2, thereby inhibiting microglial activation and reducing neuroinflammation.