1.Gut microbiota and cardiovascular disease
Basic & Clinical Medicine 2017;37(5):729-733
The intestine microbiota and the host interacts with each other.Resently,the association and causality between gut microbiota and cardiovascular diseases have been well studied.Some underlying mechanisms,especially metabolic pathways are known, including the role of trimethylamine N-oxide in the pathogenesis of atherosclerotic heart disease and heart failure and that of short chain fatty acids and their receptors in blood pressure regulation.
2.The factors relevant to the vascular calcification in ulemic patients
Clinical Medicine of China 2009;25(12):1273-1275
Objective To investigate the factors relevant to the vascular calcification in uiemic patients.Methods Eighty-five uiemic patients were enrolled in this study.The levels of fetuin-A,serum calcium,serum phosphorus,C-reactive protein and other parameters related to calcification were examined.B-ultrasound was used to detect carotid plaques.Results The Fetuin-A levels in patients with vascular calcification were significantly lower than those with non-vascular calcification[(2.34±0.95) μg/L vs (3.79±1.19) μg/L,t=5.94,P<0.01],but serum calcium,serum phosphorus and C-reactive protein were higher than those non-vascular calcification [serum phosphorus (1.97±0.23) mmol/L vs (1.80±0.33) mmol/L,t=2.05,P<0.05;calcium and phosphorus product (50.04±6.61) mg~2/dl~2 vs (44.84±9.75) mg~2/dl~2,t=2.05,P<0.05;C-reactive protein (33.45±25.11)mmol/L vs (20.65±13.43) mmol/L,t=2.03,P<0.05].Linear correlation analysis indicated that low fetuin-A level was correlated with C-reactive protein (r=-0.43,P<0.01),calcium-phosphorus product (r=-0.32,P<0.01),serum albumin concentration (r=0.37,P<0.05) and phosphorus level (r=-0.36,P<0.05).Conclusions The risk factors relevant to the vascular calcification are high serum phosphorus,calcium and phosphorus product and the micro-inflammatory status in uiemic patients.Vascular calcification is also correlated with low fetuinA level,adding exogenous Fetuin-A may become an effective means in preventing vascular calcification.
3.Neuropsychological Study of Agnosia in Patients with Cerebral Vascular Disease
Chinese Journal of Rehabilitation Theory and Practice 1999;5(1):17-19
In order to study the type and cerebral location of agnosia in patients with cerebral vascular disease, 35 patients with single cerebral lesion determined by CT or MRI were checked. The standardized Aphasia Battery in Chinese and self designed tasks about agnosia were adopted. The results showed that there were object agnosia, picture agnosia, color agnosia, agnosia acalculia, auditory agnosia, tactile agnosia, neglect, environmental agnosia, body agnosia in left hemisphere group, and color agnosia, neglect, environmental agnosia, anosognosia in right group. The conclusions were that for the majority of dextrals, cerebral dominance for visual, auditory, tactile, body cognition all located in the left hemisphere. Color agnosia may happen in right hemisphere. Either hemisphere can produce neglect, anosognosia, and the incidence in right hemisphere is higher than in left one.
5.Chitinase Gene Overexpression of Chaetomium cupreum in Pichia pastoris by Multi-site Mutations
Microbiology 2008;0(10):-
By using gene SOEing PCR, Arg (CGC) in the expression fragment of chitinase gene (chi58) from Chaetomium cupreum was mutated synonymously to Arg (AGA), which is a bias code of Pichia pas-toris yeast. The expression plasmid pPIC9K-chi58A was constructed and transformed into GS115 strain through electroporation. The chitinase activity reached 101.71 U/mL?3.33 U/mL after induced with 120 h, which was the 3 fold of the original strain (31.83 U/mL?4.85 U/mL). Additionally, recombinant yeast showed good genetic stability after 10 cycle. SDS-PAGE analysis suggested that the weight of protein was 58 kD.
6.Study of Wenyang Huoxue Fang in Treating Patients with Acute Coronary Syndrome
Jun WANG ; Xin YAN ; Zhen WANG
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(10):-
Objective To study the effects of Wenyang Huoxue fang on patients with acute coronary syndrome in clinical presentation,inflammatory reactions,plasmin/plasminogen activators,endothelial cell injurys.Method Eighty cases of acute coronary syndrome were divided into treatment group and control group randomly,40 cases for each group.Both groups were treated with standard management(vasodilaters,cholesterol-lowering,antiplatelet) and the treatment group was given Wenyang Huoxue fang additionally for four weeks.TCM symptoms,effect of angina,TXB2,6-K-PGF,t-PA,PAI,IL-2,IL-6 were observed before and after treatment.Result Effective rate of angina in treatment group and control group was 80% and 65% respectively(P
7.Significance of global end-diastolic volume index in acute kidney injury after septic shock
Jun WANG ; Yan CUI ; Zhi SONG ; Ling WANG ; Yan GAO
Chinese Journal of Nephrology 2013;29(9):650-654
Objective To analyze the significance of global end-diastolic volume index (GEDVI) in acute kidney injury (AKI) after septic shock.Methods A retrospective analysis of 61 patients was performed.The patients were diagnosed of septic shock in emergency ward of Shenyang Military Hospital from 2012 March to 2013 May and were monitored by pulse indicator continuous cardiac output (PiCCO).The patients were divided into two groups:low GEDVI group (GEDVI < 700 ml/m2,29 cases) and high GEDVI group (GEDVI≥700 ml/m2,32 cases) by evaluating GEDVI of 24 hour after PiCCO.Several physiologic and biochemical indexes were recorded,including the hemodynamic parameters at the beginning and the 24 h of PiCCO monitoring,Scr,BUN,lactic acid,incidence and mortality of AKI,baseline glomerular filtration rate,baseline Scr,APACHE Ⅱ scores,mortality during the period of emergency ward or within 28 d after the diagnosis.Results A total of 26 cases in high GEDVI group (81.3%) were attacked with AKI,while 16 cases in low GEDVI group (55.2%) were attacked with AKI,the incidence of AKI in high GEDVI group was significantly higher than that in the low GEDVI group.A COX regression analysis of mortality was performed between the patients staying at emergency ward and during 28 d after diagnosis.The results indicated that AKI and GEDVI had no relation with patients' death.Therefore,AKI and GEDVI could not be considered as the risk factors for the prognosis.Conclusions High GEDVI can significantly increase the incidence of AKI after septic shock,therefore high GEDVI should be avoided as much as possible in the course of clinical treatment.
8.Study on the efficacy and quality of life of tiotropium combined with sulpiride in elderly patients with moderate to severe COPD
Wensen YAN ; Bin LI ; Yan WANG ; Xiaoyun JIANG ; Jun WANG
Chinese Journal of Biochemical Pharmaceutics 2017;37(5):277-279
Objective To observe the effect of tiotropium combined Seretide in the treatment of elderly patients with moderate to severe COPD clinical curative effect and the influence on the quality of life of patients.Methods114 cases of moderate or severe COPD in our hospital from January 2014 to January 2016,were randomly divided into observation group and control group, 57 cases in each group.The control group was treated with Seretide treatment, the observation group were treated by tiotropium combined with Seretide treatment, compared two groups of patients with curative effect and quality of life.ResultsBefore treatment, there were no significant differences in lung function index, MRC score, 6MWT and WHOQOL-100 scores between the two groups;After treatment, FEV1/FVC and FEV1% in the observation group were significantly higher than in the control group, and the difference was statistically significant (P<0.05);the dyspnea severity score (MRC) and six minute walk test (6MWT) in the observation group were significantly better than those in the control group, and the differences were statistically significant (P<0.05);the quality of life score (WHOQOL-100) in the observation group was significantly higher than in the control group, the difference was statistically significant (P<0.05).ConclusionTiotropium bromide combined with nimesulide in the treatment of elderly patients with moderate or severe COPD is effective, and can effectively improve the level of pulmonary function, improve the quality of life of patients.
9.Analysis of ambroxol hydrochloride on inflammatory factor level changes of TNF-alpha and hs-CRP in severe pneumonia and clinical therapeutic effect
Wensen YAN ; Bin LI ; Yan WANG ; Xiaoyun JIANG ; Jun WANG
Chinese Journal of Biochemical Pharmaceutics 2017;37(6):307-309
Objective To investigate the therapeutic effect of ambroxol hydrochloride on severe pneumonia, and the influence on the inflammatory cytokines of TNF-alpha and hs-CRP etc.MethodsThe clinical data of 70 patients with severe pneumonia patients treated in our hospital from December 2014 to August 2016 were retrospectively analyzed.The patients were divided into control group(n=30) and observation group(n=40) according to the treatment methods, the control group was given routine treatment, the observation group was given ambroxol hydrochloride on the basis of conventional treatment.The therapeutic effect of the two groups was observed, the differences of serum levels of inflammatory cytokines, pulmonary function, cough and expectoration symptom scores of the two groups were compared before and after treatment.ResultsThe effective rate of the observation group was 97.50%, which was significantly higher than that of the control group(80.00%);There was no significant difference in serum inflammatory cytokine levels between the two groups before treatment, after treatment,the levels of IL-6, IL-8, hs-CRP and TNF-alpha the observation group were lower than those in the control group;There was no significant difference in the indexes of lung function between the two groups before treatment.After treatment, the levels of FVC, FEV1 and FEV1/FVC in the observation group were higher than those in the control group;There was no significant difference in symptom score between the two groups before treatment.After treatment, cough, sputum volume, cough ease and wheezing scores in the observation group were lower than in the control group.ConclusionAmbroxol hydrochloride has a good therapeutic effect on severe pneumonia,which can significantly reduce the levels of inflammatory cytokines such as TNF-α and hs-CRP, and improve the related symptoms, and has good application value.
10.Role of NO/cGMP signaling pathway in dexmedetomidine-induced reduction of neuropathic pain in rats
Biyu ZHANG ; Xuejun YAN ; Jun WANG
Chinese Journal of Anesthesiology 2016;36(4):481-483
Objective To investigate the role of nitric oxide/cyclic guanosine monophosphate (NO/ cGMP) signaling pathway in dexmedetomidine-induced reduction of neuropathic pain (NP) in the rats.Methods Forty-two healthy male Sprague-Dawley rats,weighing 200-250 g,were randomly divided into 7 groups (n =6 each) using a random number table:normal control group (C group);NP group;dexmedetomidine group (D group);dimethyl sulfoxide (DMSO) group;a non-selective nitric oxide synthase inhibitor N-nitro-L-arginine methyl ester (L-NAME) group (L-NAME group);inactive enantiomer D-NAME group (D-NAME group);a soluble guanylyl cyclase inhibitor 1H-[1,2,4] oxidazole[4,3-a] quinoxalin-1-one (ODQ) group (ODQ group).NP was induced by chronic constriction injury to the sciatic nerve in anesthetized rats.On day 7 after chronic constriction injury,dexmedetomidine 1.5 μg/kg was injected intrathecally in group D,and in DMSO,L-NAME,D-NAME and ODQ groups,DMSO l0 μl,L-NAME 100 μg,D-NAME 100 μg and ODQ 10 μg were injected intrathecally,respectively,and 25 min later dexmedetomidine 1.5 μg/kg was injected intrathecally.The thermal paw withdrawal latency was measured immediately after intrathecal administration and at 30,60,90,120,150,180 and 210 min after intrathecal administration,and the area under the curve of thermal paw withdrawal latency was calculated to reflect the thermal pain threshold.Results Compared with group C,the thermal pain threshold was significantly decreased in the other six groups (P<0.05).The thermal pain threshold was significantly higher in D,DMSO,L-NAME,ODQ and D-NAME groups than in group NP (P<0.05).Compared with group D,the thermal pain threshold was significantly decreased in L-NAME and ODQ groups (P<0.05),and no significant change was found in the thermal pain threshold in D-NAME and DMSO groups (P>0.05).Conclusion The mechanism by which dexmedetomidine reduces NP is related to activation of NO/cGMP signaling pathway in the rats.