1.Moyamoya disease and immune inflammation
International Journal of Cerebrovascular Diseases 2016;24(2):146-149
Moyamoya disease is a chronic progressive cerebrovascular disease. Its main manifestation is bilateral internal carotid artery progressive stenosis w ith abnormal vascular netw ork formation of the compensatory hyperplasia in brain base. The pathological mechanism of moyamoya disease is not clear. Grow ing evidence has suggested that immune inflammation may play an important role in its occurrence and development process. Abnormal expression of various inflammatory cytokines and immune proteins can be observed in patients w ith moyamoya disease. This article review s the possible mechanism of immune inflammation in moyamoya disease in recent years.
2.Simultaneous Determination of Baicalin,Baicalein and Wogonin in Huatan Pingchuan Tablet by HPLC
Xiang CHEN ; Hongping ZHANG ; Jingjing XU
China Pharmacy 2016;(6):846-847,848
OBJECTIVE:To establish a method for the simultaneous determination of baicalin,baicalein and wogonin in Hua-tan pingchuan tablet. METHODS:HPLC was performed on the column was Diamonsil C18 with mobile phase of methanol-0.1%phosphoric acid(gradient elution)at a flow rate of 1.0 ml/min,detection wavelength was 277 nm,column temperature was 30 ℃, and the injection volume was 10 μl. RESULTS:The linear range was 0.069 04-0.690 4 μg for baicalin(r=0.999 4),0.054 56-0.5456 μg for baicalein(r=0.999 6)and 0.030 36-0.303 6 μg for wogonin(r=0.999 1);RSDs of precision,stability and reproduc-ibility tests were lower than 2%;recoveries were 97.64%-99.06%(RSD=0.57%,n=6),98.31%-100.64%(RSD=0.85%,n=6) and 97.53%-99.48%(RSD=0.76%,n=6). CONCLUSIONS:The method is simple,stable and reproducible,and can be used for the contents determination of baicalin,baicalein and wogonin in Huatan pingchuan tablet.
3.Ultrasonographic diagnosis of hepatobiliary cystadenoma
Xiang XU ; Ling CHEN ; Zhen YE
Chinese Journal of Ultrasonography 2009;18(6):496-498
Objective To explore the characteristics of uhrasonography of hepatobiliary cystadenoma. Methods The ultrasonographic characteristics of 5 cases with hepatobiliary cystadenoma were retrospectively analysed, and compared with the operation and pathology. Results The ultrasonography of 5 cases was multilocular cystic mass,which seems to be,but not indeed communicating with the biliary tree,in which irregular septation was demonstrated in two-dimensional structure and also with perforator vessels along in color Doppler flow imagineg. And in some cases small papillary tuft and small loci of calcification was noted on the septation. Conclusions Muhilocular cystic mass,locating along the biliary tree, however not communicating with the the biliary tree, is an important diagnostic basis of biliary cystadenoma. And it should be distinguished with other cystic tumor in the liver.
4.Effect of omeprazole combined with Kangfuxin liquid on immune function, gastrin family and NO levels in gastric ulcer
Weidong CHEN ; Tingting XIANG ; Xingang XU
Chinese Journal of Biochemical Pharmaceutics 2017;37(3):168-171
Objective To observe the effect of omeprazole combined with Kangfuxin liquid on immune function,gastrin family and NO levels in patients with gastric ulcer.Methods 120 cases of patients with gastric ulcer from October 2014 to September 2016 in our hospital were selected and randomly divided into the observation group and the control group with 60 cases in each group.The control group was given omeprazole based on conventional treatment, and the observation group was given Kangfuxin liquid based on the control group.For four weeks, to observe the differences of immune function (CD3 +,CD4 +,CD8 +,CD4 +/CD8 + and CD4 +CD25 +FoxP3 +Treg), gastric gastrin family (GAS, CCK, MTL) and NO levels between the two groups.Results After treatment, the CD3 +, CD4 +, CD8 +, CD4 +/CD8 +and CD4 +CD25 +FoxP3 +Treg levels of the two groups were compared, the difference was statistically significant (P<0.05), CD3 +, CD4 +, CD4 +/CD8 + of the groups showed a gradually increasing, the difference was statistically significant (P<0.05) and CD8 +, CD4 +CD25 +FoxP3 +Treg showed a gradually decreasing, the difference was statistically significant (P<0.05), and the change range of the observation group was more than that of the control group, the difference was statistically significant (P<0.05), the GAS,CCK,MTL levels of the two groups were compared, the difference was statistically significant (P<0.05), the GAS, CCK of the two groups showed a gradually decreasing, the difference was statistically significant (P<0.05), and MTL showed a gradually increasing, the difference was statistically significant ( P<0.05 ) , and the change range of the observation group was more than that of the control group , the difference was statistically significant (P<0.05), the NO levels of the two groups were compared, the difference was statistically significant (P<0.05), NO of the groups showed a gradually increasing, the difference was statistically significant (P<0.05), and the change range of the observation group was more than that of the control group, the difference was statistically significant (P<0.05).Conclusion Omeprazole combined with Kangfuxin liquid can get better regulating results of immune function and gastrin family, NO in patients with GU, and have more effective than omeprazole alone.
5.Effect of the General Education on Medical Ethics of Medical Students
Bei CHEN ; Yifeng JIANG ; Xiang XU
Chinese Medical Ethics 1995;0(02):-
Medical students' education of medical ethics is now influenced by many unfavorable factors,such as absence of humanities quality,weakening belief in ideality and shock from the market economy.General education may play an important role in strengthening humanities quality and belief in ideality among medical students,and correcting their cognition of the market economy.Therefore,it is necessary to deepen general education on strengthening medical students' education of medical ethics.
6.Expression of TGF-betal in placenta of the patients with pregnancy-induced hypertension and its relationship with serum VCAM-1.
Wenpei, XIANG ; Xiaoyan, XU ; Hanping, CHEN
Journal of Huazhong University of Science and Technology (Medical Sciences) 2005;25(1):82-4
The expression of transforming growth factor-beta1 (TGF-beta1) in placental tissue of pregnancy-induced hypertension (PIH) and the relationship between the level of expression of TGF-beta1 and the amount of vascular cell adhesion molecule-1 (VCAM-1) in serum was studied. Immunohistochemistry ABC was used to detect the expression and distribution of TGF-beta1 in placental tissues in 40 PIH women and 20 normal pregnancy women. High resolution pathological image analysis system was used to determine the quality of TGF-beta1. The VCAM-1 in serum was examined by enzyme linked immunoabsorbent assay (ELISA). The results showed that TGF-beta1 could be express in syncytiotrophoblast. The levels of TGF-beta1 expression in placental tissues of the patients with moderate and severe PIH were significantly higher (P < 0.05), while the serum VCAM-1 was significantly lower than in normal group (P < 0.01). There was a significant positive correlation between the expression of TGF-beta1 in placental tissues and the serum VCAM-1 (r = 0.969, P < 0.01). It was concluded that the level of TGF-beta1 expression in PIH was increased and was positively correlated with the amount of serum VCAM-1, indicating that they might be involved in the pathogenesis of PIH.
Hypertension, Pregnancy-Induced/*metabolism
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Placenta/metabolism
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Transforming Growth Factor beta/*metabolism
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Transforming Growth Factor beta1
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Vascular Cell Adhesion Molecule-1/*blood
7.MICROARRAY ANALYSIS OF DIFFERENT GENE EXPRESSION OF HUMAN CERVICAL CANCER SUBCLONE CELL LINES
Wei CHEN ; Xu LI ; Xiang WANG
Journal of Pharmaceutical Analysis 2006;18(1):49-52
Objective To examine the differentially expressed invasion-related genes in two anchorage-independent uterine cervical carcinoma cell lines derived from the same patient using a cDNA array. Methods Two human uterine cervical carcinoma subclonal cell lines CS03 and CS07 derived from a single donor line CS1213 were established by limited dilution procedure. The two cDNA samples retro-transcribed from total RNA derived from CS03 and CS07 cells were screened by a cDNA microarray carrying 234 human cell-cycle related genes and 1011 human signal transduction and membrane receptor -associated genes, scanned with a ScanArray 3000 laser scanner. Results The cDNA microarray analysis showed that 12 genes in CS03 were up-regulated compared to CS07, and 24 genes in CS07 were up-regulated. The function of a number of differentially expressed genes was consistently associated with cell-cycle, cell proliferation, migration, apoptosis, signal transduction and tumor metastasis, including p34cdc2, TSC22, plasminogen activator inhibitor I (PAI-1)and desmosome associated protein(Pinin). Conclusion Multiple genes are differentially expressed in uterine cervical carcinoma cell lines even came from the same patient. It is suggested that these genes are involved in the different phenotypic characteristics and development of cervical carcinoma.
8.Calcium-binding protein secretagogin is a novel neuroendocrine marker.
Wen-jun WANG ; Fan ZHANG ; Guo-xiang XU ; Chen CHEN
Chinese Journal of Pathology 2010;39(9):627-628
Adenoma
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metabolism
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Adrenal Cortex Neoplasms
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metabolism
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Biomarkers, Tumor
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metabolism
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Calcium-Binding Proteins
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metabolism
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Carcinoma, Neuroendocrine
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metabolism
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Humans
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Lung Neoplasms
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metabolism
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Neuroendocrine Cells
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metabolism
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Neuroendocrine Tumors
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metabolism
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Secretagogins
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Small Cell Lung Carcinoma
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metabolism
9.Research advances in molecular epidemiology and vaccines of Coxsackievirus A16.
Xiang-Peng CHEN ; Xiao-Juan TAN ; Wen-Bo XU
Chinese Journal of Virology 2014;30(4):483-488
Epidemics of hand, foot and mouth disease (HFMD) have mainly been caused by Coxsackievirus A16 (CVA16) and Enterovirus A 71 (EV-A71), which circulated alternatively or together in the affected area. CVA16 has caused numerous outbreaks and epidemics in multiple countries and geographical regions, and has become an important public health problem. Based on an analysis of the complete VP1 coding region, all CVA16 strains can be divided into genotypes A, B1, and B2. Furthermore, genotype B1 can be divided into subgenotypes B1a, B1b, and B1c. After 2000, no reports of genotype B2 virus strains have been reported. All of the CVA16 strains reported in mainland China have belonged to subgenotypes B1a and B1b. Most CVA16-associated infections cause only mild symptoms; however, some CVA16 infections can lead to severe complications and even death. Vaccination is considered to be the most effective method to control the transmission and infection rate of this virus. A number of research groups are studying various vaccine types, including inactivated vaccines, genetic engineering vaccines, and DNA vaccines, amongst others. In this review, an overview is provided of the research advances in molecular epidemiology and vaccines of CVA16.
Animals
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China
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Coxsackievirus Infections
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epidemiology
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immunology
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prevention & control
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virology
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Enterovirus A, Human
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classification
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genetics
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isolation & purification
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Humans
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Molecular Epidemiology
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Viral Vaccines
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administration & dosage
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genetics
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immunology
10.Electro-acupuncture combined with surface gastric pacing in the treatment of gastrointestinal dysfunction after spinal cord injury
Yiwei LIU ; Yuying ZHENG ; Yong GAO ; Hui XU ; Xiang CHEN
Chinese Journal of Physical Medicine and Rehabilitation 2015;37(3):205-209
Objective To explore the effects of electro-acupuncture combined with surface gastric pacing on gastrointestinal dysfunction for patients with spinal cord injury (SCI).Methods Seventy-five SCI patients with gastrointestinal dysfunction were divided randomly into an electro-acupuncture group (group A),a gastric pacing treatment group (group B) and a group for which electro-acupuncture was combined with gastric pacing (group C).There were 25 cases in each group.Members of group A were given 30 minutes of electro-acupuncture per day ; those of group B had 30 minutes of gastric pacing treatment twice per day ; group C was provided with both 30 minutes of electro-acupuncture and one 30-minute gastric pacing treatment per day.All of the interventions lasted ten days.Before and after the treatment,all patients were assessed using a clinical symptoms score and with electrogastrograms,and any adverse effects were observed.Results There was a significant improvement in upper abdominal pain and epigastric discomfort,bloating and early satiety,nausea,vomiting,as well as belching and loss of appetite in each group after treatment.Before treatment there was no significant difference in the average clinical symptom scores of the three groups.After treatment the values had decreased,and those of group C were significantly lower than group A or B.The average scores of groups B and A were not significantly different.The electrogastrogram results showed than after treatment there was significant improvement in N% and T% in groups A and B,and also significant improvement in N%,B% and T% in group C compared to before treatment.Group C's improvements were all significantly greater than those observed in groups A and B.Conclusion Electro-acupuncture or gastric pacing alone can give some improvement in gastrointestinal function and its electrophysiological indicators,but their combined effects are better than when either is used alone.