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.Regulatory T lymphocytes and ischemic stroke
Xiang CHEN ; Dan YE ; Yun XUN
International Journal of Cerebrovascular Diseases 2013;21(12):933-937
Stroke is a cerebrovascular disease type with high morbidity and mortality,of which ischemic stroke accounts for about 80%.Now,it is believed that the inflammatory mechanisms play an important role in the progress of pathological physiology of ischemic stroke.Peripheral T lymphocytes infiltrate to the damaged area within 24 hours after cerebral ischemia and are involved in the advance of inflammatory process of brain tissue.As a subtype of T lymphocytes,regulatory T cells are mainly located in the ischemic penumbra; however,at present,its role in ischemic brain injury remains controversial.The research on the mechanisms of regulatory T cells in ischemic stroke may contribute to further understanding of the pathogenesis of ischemic stroke and find new therapeutic targets.
3.Significance of Twenty-Four Hours Oesophageal Power of Hydrogen Monitoring for Gastroesophageal Reflux in 30 Neonates with Pneumonia
jian-wen, XIANG ; yun-bin, CHEN
Journal of Applied Clinical Pediatrics 2006;0(19):-
Objective To investigate the effects of pneumonia on gastroesophageal reflux(GER)of neonates.Methods The distal 24 h esophageal pH monitoring was performed in 30 neonates with pneumonia and 30 controls.The number of reflux episodes,the number of refluxover 5 min,the longest time of reflux,the total time of pH
4.Alprostadil the pneumoconiosis rheology and respiratory function of patients with pulmonary heart disease clinical research.
Chui-yun LUI ; Xiang-wen GONG ; Qian CHEN
Chinese Journal of Industrial Hygiene and Occupational Diseases 2012;30(9):694-696
Adult
;
Aged
;
Alprostadil
;
therapeutic use
;
Female
;
Hemorheology
;
Humans
;
Male
;
Middle Aged
;
Pneumoconiosis
;
blood
;
drug therapy
;
physiopathology
;
Respiratory Function Tests
6.Comparison of cannulated lag screw versus buttress plate fixation for posterior malleolar fractures
Peng WANG ; Xiang ZHANG ; Yun SHEN ; Xiaodong CHEN ; Lei SHEN
Chinese Journal of Orthopaedic Trauma 2017;19(3):192-197
Objective To compare the clinical outcomes of percutaneous cannulated lag screws versus posterior buttress plate in the fixation for posterior malleolar fractures.Methods We reviewed the 167 patients who had been treated between January 2010 and December 2014 for ankle fracture involving larger than 25% of the articular surface of the posterior malleolus.They received posterior malleolus fixation with percutaneous cannulated lag screws or with a buttress plate.In the cannulated screw group (84 patients),there were 47 males and 37 females,aged from 23 to 72 years (average,49.7 ±9.1 years),and 39 cases of type B and 45 ones of type C according to the Dennis-Webber classification.In the buttress plate group (83 patients),there were 38 males and 45 females,aged from 31 to 69 years (average,52.3 ± 8.3 years),and 45 cases of type B and 38 ones of type C according to the Dennis-Webber classification.At 6 and 12 months postoperation and the final follow-up,the ankle motion was evaluated using American Orthopaedic Foot and Ankle Society (AOFAS) score and range of motion (ROM).Results The average operation time for the cannulated screw group was significantly shorter than for the buttress plate group (Z =-9.145,P < 0.001).No fracture nonunion,reduction loss or incision infection happened in either group.In the cannulated screw group,we detected malunion with a step-off beyond 2 mm in 5 patients,and penetration of one cannulated lag screw into the tibiofibular syndesmosis in 3 patients.In the buttress plate group,we detected toe flexion contracture in 4 patients,and uncomfortable feeling in ankle motion in 7 patients.At the final follow-up,X-rays and CT scans in the 2 groups showed no obvious post-traumatic osteoarthritis of the ankle.There were no significant differences between the 2 groups regarding the AOFAS scores at 6 and 12 months postoperation and the final follow-up(P > 0.05);the AOFAS scores at the final follow-up for all the patients were significantly different from those at 6 and 12 months postoperation (P < 0.05).At the final follow-up,there were no significant differences between the 2 groups regarding ROMs of dorsal flexion,plantar flexion,varus or valgus (P > 0.05).Conclusions As there are no significant differences between the percutaneous cannulated lag screws and posterior buttress plate in AOFAS score and ROM of the ankle after fixation for posterior malleolar fractures,the 2 fixation methods can both achieve good clinical outcomes.Fixation with cannulated lag screws has advantages of indirect reduction and minimal invasion but also a disadvantage of uncertain quality of reduction;fixation with buttress plates has an advantage of anatomical reduction under direct vision but also shortcomings of relatively large invasion and high cost.
7.Comparative Study of Environmental Risk Factors for Han and Uyghur Children with Dyslexia
Hua ZHAO ; Pengxiang ZUO ; Baoping ZHANG ; Yun CHEN ; Xiang ZHOU
Journal of Audiology and Speech Pathology 2016;24(2):130-134
Objective To investigate differences between Han and Uyghur children in dyslexia prevalence and potential environmental risk factors as well as to provide diagnosis and treatment evidence for dyslexia children . Methods We used cluster sampling to recruit 2 854 students in grades 3~6 from five Uyghur -Chinese bilingual primary schools in Xinjiang province .The children with dyslexia were selected step by step according to the defini‐tion of ICD-10 and DSM -IV .The children with DD and children without DD were selected and compared by 1∶1 of the same class ,ages and genders .Then single factor analysis and logistic regression analysis were used to as‐sess children'environmental risk factors .Results In total ,2 438 effective quostionnaires have been got .The difference between Han (3 .89% ) and Uyghur (7 .05% ) dyslexia prevalence was statistically significant .The factor analysis revealed that educational grades ,family income ,father's and mother's occupations ,and their education levels as well as some home literacy environmental factors were significantly different for the two groups of children with dyslexia (P<0 .05) .Conclusion The prevalence of dyslexia was high in both groups ,and especially for Uyghur children . Some environmental factors may be responsible for the differences noted ,especially for the occupation of mother .
8.Effects of behavioral inhibition system/behavioral activation system and emotion regulations on depression of adolescents
Yanzhang LI ; Yun XU ; Zi CHEN ; Juan XIANG
Chinese Journal of Behavioral Medicine and Brain Science 2013;22(10):926-928
Objective To explore the effects of behavioral inhibition system/activation system (BIS/BAS) and emotion regulations on depression of adolescents.Methods 800 adolescents from an university and a middle school were chosen by cluster random sampling,and were surveyed by BIS/BAS scale,Beck depression inventory(BDI),center for epidemiologic studies depression scale (CESD) and cognitive emotion regulation questionnaire (CERQ).The data were analyzed by pearson correlation,F test and multiple stepwise regression analysis.Results (1) BDI and CESD were correlated positively with BIS (r =0.39,0.41,P < 0.01),self-blame,rumination,catastrophizing,blame others and perspective(r =0.19-0.50,P < 0.05-0.01),and negatively with planning,reappraisal (r =-0.08-0.24,P<0.05).(2)The scores of severe depression group were highest(15.45 ±2.57,P<0.01) in BIS,lowest in BAS-drive(9.60 ±2.99,P<0.01),and nonadaptive emotion regulations were used mostly,and adaptive emotion regulations were done leastly.(3) Catastrophizing,BIS,reappraisal,rumination,refocusing and self-blame explained 35% of total variance,and catastrophizing and BIS explained the largest proportion,respectively 25% and 4%.Conclusion BIS/BAS and emotion regulations may be important factors influencing non-clinical depression of adolescents.
9.Clinical observation on effect of shenle capsule in treating mesangial proliferating glomerulonephritis.
Chen-yun WEI ; Xiang-mei CHEN ; Yan-ping ZHANG
Chinese Journal of Integrated Traditional and Western Medicine 2002;22(5):341-345
OBJECTIVETo study the therapeutic effect of Shenle capsule (SLC) in treating mesangial proliferating glomerulonephritis (MsPGN) and to explore its therapeutic mechanism and clinical indication.
METHODSAdopting case control method, taking angiotensin-converting enzyme inhibitor (benazepril) as control agent, the 142 cases of MsPGN were randomly divided into 3 groups, treated with SLC (Group A, n = 36), SLC plus benazepril (Group B, n = 68) and benazepril alone (Group C, n = 38) respectively. Changes of fibrinogen, lipids, renal function and urinary protein were observed.
RESULTSThe total effective rate in Group A was higher than that in Group C, but with insignificant difference. The total effective rate in Group B after 3 courses of treatment was 89.74%, which was higher than that in Group C and Group A (P < 0.05). Levels of cholesterol (CH), triglyceride (TG), serum creatinine, fibrinogen and urinary protein (UP) were significantly lowered in Group A after treatment, with the levels of CH, TG and UP lower than those in Group C, while CH, TG and fibrinogen were unchanged in Group C after treatment.
CONCLUSIONSLC is superior in higher efficacy and less side-effects in treating MsPGN, its effect is related with the degree of kidney pathological changes, it is more effective in treating patients with mild pathological change than in those with severe change. The outcome of combined use of SLC and angiotensin-converting enzyme inhibitor would be better.
Adolescent ; Adult ; Aged ; Angiotensin-Converting Enzyme Inhibitors ; therapeutic use ; Benzazepines ; therapeutic use ; Child ; Cholesterol ; blood ; Drug Therapy, Combination ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Glomerulonephritis, Membranoproliferative ; blood ; drug therapy ; Humans ; Male ; Middle Aged ; Phytotherapy ; Proteinuria ; drug therapy ; Triglycerides ; blood
10.Effect of pure total flavonoids from citrus on hepatic SIRT1/PGC-1alpha pathway in mice with NASH.
Zhi-Yun CHEN ; Jian-Shuang LI ; Jian-Ping JIANG ; Mao-Xiang YAN ; Bei-Hui HE
China Journal of Chinese Materia Medica 2014;39(1):100-105
OBJECTIVETo observe the effect of pure total flavonoids from Citrus (PTFC) on the hepatic fatty degeneration, inflammation, oxidative stress and SIRT1/PGC-1alpha expressions in mice with non-alcohol steatohepatitis (NASH), and discuss the action mechanism of PTFC on NASH.
METHODMice were given high-fat diet for 16 weeks to induce the NASH model. Since the seventh week after the model establishment, the mice were intervened with 100, 50 and 25 mg x kg(-1) x d(-1) PTFC for 10 weeks. The pathologic changes in hepatic tissues were observed with HE staining. The contents of TG, CHOL in hepatic tissue, as well as the levels of AST, ALT in serum were detected by using the biochemical process. The expression of SIRT1, PGC-1alpha and MnSOD mRNA in hepatic tissues were detected with Real-time PCR assay. SIRT1, PGC-1alpha protein and 8-OHdG expressions were determined with the immunohistochemical method. The SOD level in hepatic tissues was tested by the xanthine oxidase method. The MDA content in hepatic tissues was examined by the thiobarbituric acid method.
RESULTThe contents of TG, CHOL, NAFLD activity scores and ALT level in serum in hepatic tissues of mice in the model induced by fat-rich diet were obviously higher than that of the normal group (P < 0.010. The SIRT1, PGC-1alpha, MnSOD mRNA and protein expression in hepatic tissues were significantly lower than that of the normal group (P < 0.01). The expression of 8-OHdG and the content of MDA in hepatic tissues were obviously higher than that of the normal group (P < 0.01). After the intervention with different doses of PTFC, the NAFLD activity scores, the content of TG and the level of AST in serum were notably lower than that of the normal group (P < 0.01, P < 0.05); whereas the SIRT1, PGC-1alpha, MnSOD mRNA and protein expression were obviously higher than that of the normal group (P < 0.01, P < 0.05), with the significant decrease in the expression of 8-OHdG and the content of MDA (P < 0.01).
CONCLUSIONOxidative stress/lipid peroxidation enhancement in in NASH mice induced by high-fat diet may be related to the changes in SIRT1/PGC-1alpha signal transduction pathway. PTFC could enhance the anti-oxidant capacity in liver, relieve the damage of reactive oxygen during the fatty acid metabolic process, and prevent NASH from the occurrence and development by regulating the SIRT1/PGC-1alpha signal pathway.
Animals ; Citrus ; chemistry ; Fatty Liver ; drug therapy ; genetics ; metabolism ; Flavonoids ; chemistry ; pharmacology ; Inflammation ; drug therapy ; genetics ; metabolism ; Liver ; drug effects ; metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Non-alcoholic Fatty Liver Disease ; Oxidative Stress ; drug effects ; genetics ; Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha ; Sirtuin 1 ; genetics ; metabolism ; Transcription Factors ; genetics ; metabolism