1.Research progress of CX3CL1-CX3CR1 and the pathogenesis of sepsis
Dingwei PENG ; Yueqiu QIN ; Pinhu LIAO
Tianjin Medical Journal 2017;45(4):428-431
Sepsis has poor prognosis, and its pathogenesis is not clear. Chemokine CX3CL1 (Fractalkine, FNK) has many functions such as chemotaxis, adhesion and mediate immune injury. CX3CR1 is the only receptor of CX3CL1 and participates in the development of sepsis. Here we review the structure, biological function and possible mechanism of CX3CL1 and CX3CR1 in the pathogenesis of sepsis.
2.Changes of coagulation in response to moderate hypothermia in patients with severe traumatic brain injury
Xiping YANG ; Yue TU ; Tiezhu MA ; Dingwei PENG ; Chong CHEN ; Sai ZHANG
Chinese Journal of Trauma 2014;30(6):491-494
Objective To determine the effect of moderate hypothermia on coagulation in patients with severe traumatic brain injury (sTBI) and investigate the clinical significance of thrombelastogram (TEG) monitoring.Methods Seventy-five patients with sTBI were randomly assigned to hypothermia group (conventional treatment + moderate hypothermia within 24 hours posttrauma,n =38) and control group (conventional treatment alone,n =38).TEG aided in monitoring coagulation function by measuring clot reaction time (R),clot formation time (K),clotting rate (α),maximal amplitude (MA),and percent fibrinolysis at 30 minutes after MA (LY30).Meantime,the intracranial pressure,vital signs,blood gas values,and blood electrolytes were also measured.Outcome was evaluated by using Glasgow outcome scale (GOS).Results The two groups were similar on admission with respect to R,K,α,MA,and LY30 (P > 0.05),but the coagulation index in hypothermia group was significantly different from that in control group at days 1,2,3 and 7 posttreatment (P < 0.05).Moreover,moderate hypothermia therapy demonstrated decrease of intraeranial pressure (P < 0.01),with no severe complications,low mortality and improved outcome in comparison with control group.Conclusion Moderate hypothermia improves the hypercoagulability in patients with sTBI without increasing the risk of hyperfibrinolysis and protects brain tissue by decreasing intracranial pressure.
3.Genetic polymorphism of rs9574 C/G of endothelial cell protein C receptor gene in Guangxi population
Yanbing LIANG ; Dingwei PENG ; Yuqing HUANG ; Yesheng WEI ; Weigui LUO ; Jun LI ; Pinhu LIAO
Chinese Journal of Clinical and Experimental Pathology 2017;33(3):249-252
Purpose To compare the difference of the genotype and allele of endothelial cell protein C receptor (EPCR)gene rs9574 C/G between Guangxi population and other ethnic groups.Methods The rs9574 C/G polymorphisms of EPCR in 130 cases of Guangxi population were detected by PCR and DNA sequencing.The distribution frequency of allele and genotype was compared with the other four ethnic groups (HapMap-CEU,HapMap-HCB,HapMap-JPT,HapMap-YRI),which was published by the human genome project.Results Three genotypes of CC,CT and TT were found in rs9574 C/G with the frequencies of 39.2%,46.2%,14.6% respectively.the allele frequencies of C,T were 62.3% and 37.7%.No significant difference was observed in the frequency of genotype and allele between male and female (P > 0.05).There were significant differences in the genotype distribution among Guangxi population,HapMap-CEU and HapMap-YRI (P < 0.05).Significant differences of allelic frequency were found among Guangxi population,HapMap-CEU,HapMap-JPT and HapMap-YRI.Condusion The polymorphisms of rs9574C/G in 3'-noncoding region of EPCR gene in Guangxi population were different in different regions and ethnic groups.
4.Expression and clinicopathologic significance of OPN, CD44v6 and MMP-2 in squamous cell carcinoma and adenocarcinoma of the lung.
Jun YU ; Tiecheng PAN ; Jun LI ; Xiang WEI ; Tao CHEN ; Min HU ; Dingwei SONG ; Ligang LIU ; Peng CHEN
Chinese Journal of Lung Cancer 2006;9(4):325-328
BACKGROUNDThere are a lot of studies on relationship of surface adhesion molecule (CD44) and matrix metalloproteinase (MMP) with tumors in recent years, however study on osteopontin (OPN) is still few. The aim of this study is to investigate the levels of OPN, CD44v6 and MMP-2 in squamous cell carcinoma and adenocarcinoma of the lung, and to clearly understand their roles in growth, invasion and metastasis of squamous cell carcinoma and adenocarcinoma.
METHODSOPN, CD44v6 and MMP-2 were detected in 69 patients with squamous cell carcinoma and adenocarcinoma by immunohistochemical method.
RESULTSThe expression rate of OPN, CD44v6 and MMP-2 was significantly related to histological classification, TNM stages and lymph node metastasis (P < 0.05), but not to cell differentiation (P > 0.05). There was a positive correlation between OPN and CD44v6 expression (P < 0.001), as well as between OPN and MMP-2 expression (P < 0.001). There was no correlation between CD44v6 and MMP-2 expression.
CONCLUSIONSOPN, CD44v6 and MMP-2 expression is related to the histology, TNM stages and lymph node metastasis of lung cancer. They might be used as clinical indicators to predict the progress and metastatic potential for squamous cell carcinoma and adenocarcinoma of the lung.
5.Effect of umbilical cord mesenchymal stem cells on immune microenvironment and vascular reconstruction in traumatic brain injury
Dingwei PENG ; Bo ZHANG ; Xi WANG ; Lei WANG ; Hu CHENG ; Huajiang DONG ; Sai ZHANG
International Journal of Biomedical Engineering 2019;42(3):205-210
Objective To investigate the effects of umbilical cord mesenchymal stem cells (UCMSCs) on immune microenvironment and angiogenesis in patients with traumatic brain injury. Methods Cerebrospinal fluid (CSF) samples were divided into 4 groups, including normal group (n=6), traumatic brain injury group (n=6), traumatic brain injury+UCMSCs treatment group ( n=6 ) and craniocerebral trauma + conventional treatment group ( n=6 ) . The CSF samples were detected by liquid chromatography-mass spectrometry , and data were collected by data independent acquisition (DIA) technology. The differential proteins were screened by bioinformatics processing, and analyzed by Gene Ontology (GO) analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis. Results A total of 688 proteins were screened in CSF samples and reliably quantified. There were 38 differential proteins in the CSF of patients with traumatic brain injury after treatment with UCMSCs, including 20 up-regulated proteins and 18 down-regulated proteins. The results of GO analysis and KEGG analysis showed that the differential proteins were mainly immunoregulatory function-related proteins, angiogenesis-related proteins, and various connexins. Conclusions The main possible mechanism of UCMSCs in the treatment of traumatic brain injury is to regulate the stability of the immune microenvironment and to promote the regeneration and reconstruction of damaged brain tissue.
6.Totally robotic fundoplication for the treatment of gastroesophageal reflux in 21 cases
Peng LI ; Ziwen WEI ; Rujuan WANG ; Chunli ZOU ; Yongyi XIE ; Xiaoyu LIU ; Dingwei LU ; Honglin YI ; Weishan XU ; Ruhong LI
Chinese Journal of General Surgery 2024;39(6):444-449
Objective:To evaluate the safety and effectiveness for the treatment of totally robotic fundoplication.Methods:A retrospective analysis was conducted on the clinical data of 21 patients with gastroesophageal reflux disease (GERD) who underwent unassisted totally robotic fundoplication at the Second Department of General Surgery, Yan'an Hospital Affiliated to Kunming Medical University from Aug 2023 to Jan 2024. The postoperative outcomes were evaluated using SF-36, GERD-Q, and NRS scoring indicators.Results:All 21 patients successfully underwent the surgery. The robotic surgery time was (99±41) minutes, with precise intraoperative anatomy and insignificant blood loss of (1.7±1.4) ml. There were no intraoperative or postoperative complications, and no conversions to open surgery . Postoperative recovery of bowel function was rapid (11.71±3.33) hours, with minimal postoperative pain (NRS score of 1.67±0.48).The postoperative hospital stay was short (3.86±2.90) days, and patient satisfaction was high, SF-36 score of (80.90±1.14);The symptoms of reflux after surgery was significantly reduced.Postoperative GERD-Q score of (4.38±1.69) significantly lower than the preoperative score of (13.90±2.07).Conclusion:Totally robotic fundoplication provides clear view of intraoperative anatomical structures, rapid postoperative recovery, minimal pain, and effective anti-reflux outcomes.
7.Aldehyde Dehydrogenase 2 Gene Mutation May Reduce the Risk of Rupture of Intracranial Aneurysm in Chinese Han Population
Xiheng CHEN ; Siming GUI ; Dachao WEI ; Dingwei DENG ; Yudi TANG ; Jian LV ; Wei YOU ; Jia JIANG ; Jun LIN ; Huijian GE ; Peng LIU ; Yuhua JIANG ; Lixin MA ; Yunci WANG ; Ming LV ; Youxiang LI
Journal of Stroke 2025;27(2):237-249
Background:
and Purpose Ruptured intracranial aneurysms (RIA) are associated with a mortality rate of up to 40% in the Chinese population, highlighting the critical need for targeted treatment interventions for at-risk individuals. Although the impact of aldehyde dehydrogenase 2 (ALDH2) gene mutations on susceptibility to intracranial aneurysms (IA) is well documented, the potential connection between ALDH2 rs671 single-nucleotide polymorphism (SNP) and RIA remains unexplored. Given the increased prevalence of ALDH2 gene mutations among Chinese Han individuals, it is clinically relevant to investigate the link between ALDH2 rs671 SNP and IA rupture.
Methods:
A prospective study was conducted on 546 patients diagnosed with IA to investigate the association between ALDH2 rs671 SNP and the risk of IA rupture.
Results:
The ALDH2 rs671 SNP (ALDH2*2) was significantly more prevalent in patients with unruptured IA (UIA) than in those with RIA (32.56% vs. 18.58%, P=0.004). Multivariate logistic regression analysis revealed that people with the ALDH2 mutation (ALDH2*1/*2 and ALDH2*2/*2 gene type) had a significantly reduced odds ratio (OR=0.49; 95% confidence level [CI] 0.27–0.88; P=0.018) for RIAs. Age-specific subgroup analysis indicated that the ALDH2 mutation provided a stronger protective effect in individuals aged 60 years and above with IA compared to those under 60 years old (OR=0.38 vs. OR=0.52, both P<0.05).
Conclusion
The incidence of RIA was significantly higher in individuals with a normal ALDH2 gene (ALDH2*1/*1) than in those with an ALDH2 rs671 SNP (ALDH2*1/*2 or ALDH2*2/*2). ALDH2 rs671 SNP may serve as a protective factor against RIA in the Chinese Han population.
8.Aldehyde Dehydrogenase 2 Gene Mutation May Reduce the Risk of Rupture of Intracranial Aneurysm in Chinese Han Population
Xiheng CHEN ; Siming GUI ; Dachao WEI ; Dingwei DENG ; Yudi TANG ; Jian LV ; Wei YOU ; Jia JIANG ; Jun LIN ; Huijian GE ; Peng LIU ; Yuhua JIANG ; Lixin MA ; Yunci WANG ; Ming LV ; Youxiang LI
Journal of Stroke 2025;27(2):237-249
Background:
and Purpose Ruptured intracranial aneurysms (RIA) are associated with a mortality rate of up to 40% in the Chinese population, highlighting the critical need for targeted treatment interventions for at-risk individuals. Although the impact of aldehyde dehydrogenase 2 (ALDH2) gene mutations on susceptibility to intracranial aneurysms (IA) is well documented, the potential connection between ALDH2 rs671 single-nucleotide polymorphism (SNP) and RIA remains unexplored. Given the increased prevalence of ALDH2 gene mutations among Chinese Han individuals, it is clinically relevant to investigate the link between ALDH2 rs671 SNP and IA rupture.
Methods:
A prospective study was conducted on 546 patients diagnosed with IA to investigate the association between ALDH2 rs671 SNP and the risk of IA rupture.
Results:
The ALDH2 rs671 SNP (ALDH2*2) was significantly more prevalent in patients with unruptured IA (UIA) than in those with RIA (32.56% vs. 18.58%, P=0.004). Multivariate logistic regression analysis revealed that people with the ALDH2 mutation (ALDH2*1/*2 and ALDH2*2/*2 gene type) had a significantly reduced odds ratio (OR=0.49; 95% confidence level [CI] 0.27–0.88; P=0.018) for RIAs. Age-specific subgroup analysis indicated that the ALDH2 mutation provided a stronger protective effect in individuals aged 60 years and above with IA compared to those under 60 years old (OR=0.38 vs. OR=0.52, both P<0.05).
Conclusion
The incidence of RIA was significantly higher in individuals with a normal ALDH2 gene (ALDH2*1/*1) than in those with an ALDH2 rs671 SNP (ALDH2*1/*2 or ALDH2*2/*2). ALDH2 rs671 SNP may serve as a protective factor against RIA in the Chinese Han population.
9.Aldehyde Dehydrogenase 2 Gene Mutation May Reduce the Risk of Rupture of Intracranial Aneurysm in Chinese Han Population
Xiheng CHEN ; Siming GUI ; Dachao WEI ; Dingwei DENG ; Yudi TANG ; Jian LV ; Wei YOU ; Jia JIANG ; Jun LIN ; Huijian GE ; Peng LIU ; Yuhua JIANG ; Lixin MA ; Yunci WANG ; Ming LV ; Youxiang LI
Journal of Stroke 2025;27(2):237-249
Background:
and Purpose Ruptured intracranial aneurysms (RIA) are associated with a mortality rate of up to 40% in the Chinese population, highlighting the critical need for targeted treatment interventions for at-risk individuals. Although the impact of aldehyde dehydrogenase 2 (ALDH2) gene mutations on susceptibility to intracranial aneurysms (IA) is well documented, the potential connection between ALDH2 rs671 single-nucleotide polymorphism (SNP) and RIA remains unexplored. Given the increased prevalence of ALDH2 gene mutations among Chinese Han individuals, it is clinically relevant to investigate the link between ALDH2 rs671 SNP and IA rupture.
Methods:
A prospective study was conducted on 546 patients diagnosed with IA to investigate the association between ALDH2 rs671 SNP and the risk of IA rupture.
Results:
The ALDH2 rs671 SNP (ALDH2*2) was significantly more prevalent in patients with unruptured IA (UIA) than in those with RIA (32.56% vs. 18.58%, P=0.004). Multivariate logistic regression analysis revealed that people with the ALDH2 mutation (ALDH2*1/*2 and ALDH2*2/*2 gene type) had a significantly reduced odds ratio (OR=0.49; 95% confidence level [CI] 0.27–0.88; P=0.018) for RIAs. Age-specific subgroup analysis indicated that the ALDH2 mutation provided a stronger protective effect in individuals aged 60 years and above with IA compared to those under 60 years old (OR=0.38 vs. OR=0.52, both P<0.05).
Conclusion
The incidence of RIA was significantly higher in individuals with a normal ALDH2 gene (ALDH2*1/*1) than in those with an ALDH2 rs671 SNP (ALDH2*1/*2 or ALDH2*2/*2). ALDH2 rs671 SNP may serve as a protective factor against RIA in the Chinese Han population.
10.The surgery of giant symptomatic cavernous sinus aneurysms.
Fuyu WANG ; Zhenghui SUN ; Bainan XU ; Chen WU ; Jinli JIANG ; Yan JIANG ; Zhe XUE ; Dingwei PENG
Chinese Journal of Surgery 2014;52(4):276-279
OBJECTIVETo evaluate the management and outcomes in patients with giant symptomatic cavernous sinus aneurysms who underwent aneurysms trapping with bypass, proximal carotid occlusion and aneurysms trapping.
METHODSTwenty-three patients with giant symptomatic cavernous sinus aneurysms underwent surgery between February 2007 and March 2013, 3 cases were male and 20 cases were female patients, the age of the patients ranged between 24 and 68 years, mean age was 54.7 years. The pre-operative digital subtraction angiography (DSA) and ballon occlusion test (BOT) were performed to confirm the diagnosis and identify hemodynamic reserve with carotid occlusion, and the aneurysms trapping with bypass, aneurysms trapping and proximal occlusion of the internal carotid artery were performed according to BOT results. During the surgery, the neurophysiological monitoring and the intraoperative CT perfusion were used. The follow-up by DSA or CT angiography were made.
RESULTSSeventeen patients underwent aneurysms trapping with bypass, 1 underwent aneurysms trapping and 5 underwent proximal occlusion of the internal carotid artery. After surgery, symptom improved in 4 cases, did not change in 10 cases, and new neural function deficit developed in 9 cases. The follow-up period were 3 months to 75 months. Two patients were lost. The Glasgow Outcome Scale of last follow-up were 5 in 19 patients, 3 in 1 patient and 1 in 1 patient.
CONCLUSIONSThe aneurysms trapping with bypass and proximal occlusion of the internal carotid artery are effective and reliable procedure for treatment of giant symptomatic cavernous sinus aneurysms in selected patients after evaluation of the pre-operative BOT, intra-operative neurophysiological monitoring and the intraoperative CT perfusion.
Adult ; Aged ; Carotid Artery Diseases ; surgery ; Carotid Artery, Internal ; surgery ; Cavernous Sinus ; surgery ; Female ; Humans ; Intracranial Aneurysm ; surgery ; Male ; Middle Aged ; Treatment Outcome