1.Biomarkers of renal injury in cerebral hemorrhage patients with cerebral microbleeds
Yachao YANG ; Yingxia LIU ; Jiangshan ZHANG ; Jinbiao ZHANG
Chinese Journal of Neurology 2015;48(6):469-474
Objective To investigate the relationship between biomarkers of renal function and cerebral microbleeds (CMBs) in cerebral hemorrhage patients.Methods This is a cross-sectional study including a total of 129 patients with cerebral hemorrhage.All patients underwent susceptibility weighted 3.0 T MRI.The presence and number of CMBs on susceptibility weighted MRI were independently interpreted.We calculated the urinary albumin/creatinine ratio (UACR) from morning spot urine and the estimated glomerular filtration rate (eGFR) in serum samples.Serum cystatin C (CysC) was measured using the automated particle-enhanced turbidimetric immunoassay.Results Among 129 patients with cerebral hemorrhage,86 (66.7%) had CMBs on susceptibility-weighted imaging.UACR (mg/g;20.47 ± 9.03 vs 35.24±14.83,t=3.823,P<0.01)andCysC (mg/L;0.98±0.09vs 1.31 ±0.13,t=4.739,P<0.01) levels were higher in the patients with CMBs than those without,and the eGFR (ml · min-1 · 1.73 m 2) was lower in the patients with CMBs than those without (78.07 ± 18.69 vs 61.59 ± 17.08,t =3.672,P <0.01).A Logistic regression analysis indicated that the levels of kidney impairment biomarkers were significantly associated with the prevalence of CMBs in cerebral hemorrhage patients after an adjustment for age,sex and other risk factors.The odds ratio (OR) and 95% CI of each kidney biomarkers (eGFR,UACR,and CysC) for the CMBs status were 2.573 (1.172-5.315),2.735 (1.247-6.246)and 2.976 (1.764-6.968),respectively.CysC exhibited fair diagnostic value for CMBs,with an area under the curve of 0.835 (95% CI 0.791-0.878).Furthermore,there were negative correlations between eGFR and the the number of CMBs (P =0.038,R2 total =0.216).There was a positive correlation between UACR,CysC and number of CMBs (P =0.024,R2 total =0.312;P =0.013,R2 total =0.375).Conclusions Elevated levels of kidney biomarkers are associated with the presence of CMBs in cerebral hemorrhage patients,independent of conventional risk factors.CysC may be a potential diagnostic biomarker for CMBs in cerebral hemorrhage patients.
2.Association of risk factors with subtypes of mild cognitive impairment
Yonghong ZHANG ; Wei KONG ; Haifeng WANG ; Yachao FAN ; Chengming XING
Chinese Journal of Geriatrics 2012;31(9):789-793
Objective To explore the association of risk factors with amnestic versus nonamnestic of mild cognitive impairment.Methods All the subjects with mild cognitive impairment (MCI) aged 65-75 years were recruited from Neurology Department of 3 third-class hospitals of Qingdao,admitted from January 2011 to September 2011.They were systematically evaluated with mini-mental state examination( MMSE )and Montreal cognitive assessment (MoCA),then health conditions were collected.According to Petersen's standards,patients were divided into 89 cases with amnestic mild cognitive impairment(aMCI) and 51 cases with non-amnestic mild cognitive impairment (non-aMCI)groups to compare different risk factors between them.Results There were statistical differences in high total cholesterol (P=0.011),diabetes mellitus (P=0.009),MoCA score (P=0.040) between aMCI and non-aMCIgroups.MoCAscore (OR=1.081,95%CI:1.001-1.204,P=0.040) in the aMCI group was lower than that in non aMCI group.Diabetes mellitus ratio (OR=0.258,95%CI:0.096-0.695,P=0.009) was higher in non-aMCI group than in aMCI group.The level of total-cholesterol(OR=13.345,95%CI:1.127-158.085,P=0.011) in aMCI group was higher than that in non-aMCI group.The high total cholesterol was a independent risk factor for aMCI.Conclusions Different risk factors appear to exert different effects for aMCI and nonaMCI.
3.Research on personnel training mode of health supervision professionals for general education of undergraduates
Lihua FAN ; Yachao ZHANG ; Xueyan JING ; Jia CAO ; Lili CHEN
Chinese Journal of Medical Education Research 2014;(7):661-663
To train health supervision talents , one of the scarce talent cultivation plans of National Health and Family Planning Commission, the undergraduate of health supervision was set up by Harbin Medical University and approved by the Ministry of education in 2012. According to the problems of personnel training, the competency model of health supervision was established through empirical research, which covered six aspects and 33 factors, and based on the model, the personnel training model was developed to cultivate the compound health supervision talents to meet the demand of health supervision, and the curriculum system covered medical, law, supervision and management courses. In order to realize the target of talent training, some viable measures were taken such as re-forming the traditional teaching methods, establishing comprehensive teachers, strengthening teacher training, and so on.
4.Expression of resistin mRNA in human adipose tissue is not related to metabolicsyndrome
Yachao YANG ; Yangang WANG ; Shengli YAN ; Huiran ZHANG ; Yuping ZHOU
Chinese Journal of Endocrinology and Metabolism 1986;0(03):-
The mRNA expression levels of resistin in omental and abdominal subcutaneous adipose tissues were measured by one-step semi-quantitative RT-PCR in normal controls and metablic syndrome patients with or without type 2 diabetes. The results suggest that there is no relationship between resistin mRNA expression in omental and abdominal subcutaneous adipose tissue and metablic syndrome.
5.The detection and analysis of etiology of non-bacterial pneumonia in children in Xi'an
Zhigang LIU ; Yachao WANG ; Wei ZHANG ; Sufang LUO ; Aiping ZOU
Journal of Xi'an Jiaotong University(Medical Sciences) 1981;0(03):-
Objective To investigate the etiological characteristics of non-bacterial pneumonia in children in Xi'an. Methods Virus IgM antibody was detected by solid phase ELISA technique, and mycoplasma pneumonia(MP) IgM antibody was detected by Au-mark immunodotting technique. Results In a total of 302 cases, mycoplasma pneumonia and / or virus were detected in 204, with the positive infection rate as 67.55%(204/302); 328 cases were found with positive strains of pathogens including 120 mycoplasma(MP) strains (36.6%) among which were 77 coxsackie virus(CV) strains (23.5%), 56 respiratory syncytial virus(RSV) strains (17.1%), 39 influenza virus strains(11.9%), 25 adenovirus strains(7.6%) and 11 EBV strains(3.4%). The single infection rate was 51.99%(157/302) while the mixed infection rate was 15.56%(47/302). The onset of non-bacterial pneumonia in Xi'an could be seen in all seasons of the year. There was significant seasonal difference among the incidences caused by different pathogens(P0.05). The highest incidence age was between 7 months to 3 years. Conclusion MP, CV, RSV are the leading pathogens that cause non-bacterial pneumonia in children in Xi'an. ELISA and Au-mark immunodotting techniques are simple and quick to detect viruses and mycoplasma.
6.Therapeutic efficacy of extended therapy with interferon and a nucleoside analogue for treating patients with HBeAg-positive chronic hepatitis B
Xuli BAO ; Yachao QU ; Fang XIONG ; Feifei ZHANG ; Lei ZHANG ; Jun LU
Clinical Medicine of China 2016;32(8):673-676
Objective To observe the therapeutic efficacy of extended therapy with interferon and a nucleoside analogue for treating patients with HBeAg?positive chronic hepatitis B( CHB)?Methods Sixty cases patients diagnosed with CHB in You′an Hospital of Beijing Affiliated to Capital Medical University from March 2012 to May 2015 were retrospectively analyzed?They were divided into group A with 29 cases and group B with 31 cases according to different treatment methods?Group A were treated with pegylated interferonα?2a( Peg?IFNα?2a) combined with adefovir dipivoxil for 96 weeks,group B were treated with Peg?IFN α?2a combined with adefovir and lamivudine for 96 weeks?The patients'recovery rate of ALT,hepatitis B virus( HBV) DNA response rate and HBeAg and HBsAg seroconversion rate and conversion rate of 12,24,48,96 weeks in the treatment were observed?Results There were no significant differences in recovery rate of ALT,hepatitis B virus( HBV) DNA response rate,HBeAg seroconversion rate and HBsAg seroconversion rate between the two groups at differenct time points( P>0?05)?HBeAg seroconversion rates in group A were 34?5% at 48 weeks,62?1% at 96 weeks, and the difference was significant( P=0?036)?HBeAg seroconversion rates in group B were 35?5% at 48 weeks, 61?3% at 96 weeks,and the difference was significant ( P=0?042)?Conclusion The treatment of peginterferonα?2a in combination with adefovir dipivoxil and lamivudine is not more efficacious than peginterferon α?2a in combination with adefovir dipivoxil?The extended treatment of Peg? IFNα?2a plus a nucleoside analogue can achieve high rates of HBeAg seroconversion in patients with HBeAg?positive CHB.
7.Formula Optimization of Shengmai Dispersible Tablets by Uniform Design
Hao DENG ; Zhijun ZHU ; Song GAO ; Yingli LI ; Yachao JIANG ; Nannan ZHANG
China Pharmacist 2016;19(10):1980-1983
Objective:To explore the formula and preparation technology parameters of Shengmai dispersible tablets. Methods:With the granulation status, disintegration time, friability, taste and and so on as the testing indices, the formula and preparation tech-nology of Shengmai dispersion tablets were optimized by uniform design. Results:The optimized formula of Shengmai dispersible tab-lets was as follows:25% extract powder, 58% MCC, 8% CCMC-Na, 4% CMS-Na, 2% L-HPC, 2% magnesium stearate and 1%sweetener. L-HPC and magnesium stearate were added after the granulation, and the tablet hardness was controlled at 25N. The opti-mized dispersible tablets could disintegrate uniformly within 3 min. Conclusion: The optimization of the prescription and preparation process parameters of Shengmai dispersing tablets is stable and reliable, and has good repeatability, and the process is feasible.
8.Optimization of Enzymatic Extraction Technology of Polysaccharides from Schisandra chinensis by Central Composite Design-response Surface Methodology
Nannan ZHANG ; Zhijun ZHU ; Yachao JIANG ; Hao DENG ; Song GAO ; Yingli LI
China Pharmacy 2016;27(22):3142-3144
OBJECTIVE:To optimize enzymatic extraction technology of polysaccharide from Schisandra chinensis. METH-ODS:Using pH value of enzymatic extraction solution,the amount of enzyme,extraction temperature as response factor,S. chi-nensis polysaccharide as response value,on the basis of single-factor experiments,3-factor,5-level central composite experimental design was adopted for the experiment. Validation test was also conducted. RESULTS:The optimal extraction technology was as pH value of 5.7,enzyme dosage of 1.3%,extraction temperature of 53 ℃. In validation test,the extraction rate of S. chinensis polysaccharide was 14.30%(RSD=1.84%,n=6). CONCLUSIONS:The optimized extraction technology is simple,reasonable and stable,and can be used for the extraction of polysaccharide from S. chinensis.
9.G1986A and G1899A in the pre-C region of HBV promote the serological conversion of e antigen
Huawen YANG ; Yan ZHU ; Yachao YAO ; Yahong LI ; Nan LI ; Donglin CAO ; Zhi ZHANG ; Liangshan HU
The Journal of Practical Medicine 2017;33(6):990-993
Objective To investigate the correlation of the 1896 and 1899 mutations of hepatitis B virus (HBV)with the conversion of e antigen in serum and the progression of the disease. Methods 238 serum samples from the patients with HBsAg positive for over six months and HBV-DNA copy number > 5.0 × 102 IU/mL were collected,and the sequence analysis was used to analyze the nucleotide sequences of the 1896 and 1899 sites in the pre-C region of HBV. At the same time,the relevant clinical data and the expressions of HBeAg were collected,followed by Spearman correlation analysis and chi square test with SPSS 20.0. Results Both 1896 and 1899 sites in the pre-C region of HBV were mutated,and the base G was A,which was closely related to the expression of e antigen(P<0.05). Both G1896A and G1899A promoted the e antigen serological conversion ,and the e antigen serological conversion of G1899A was higher than that of G1896A. G1899A was associated with HBV related disease progression (correlation coefficient 0.280,P < 0.05),especially with the incurrence of HCC. Conclusions G1896A and G1899A in the pre-C region of HBV can promote the serological conversion of e antigen.
10.Effect of different doses of naloxone postconditioning on focal cerebral ischemia-reperfusion injury in rate
Yi LIU ; Fushan XUE ; Xu LIAO ; Jiaxun ZHAO ; Yachao XU ; Jun XIONG ; Yanming ZHANG ; Jianhua LIU
Chinese Journal of Anesthesiology 2010;30(1):97-100
Objective To investigate whether naloxone postconditioning could attenuate the focal cerebral ischemia-reperfusion (I/R) injury in rats. Methods Eighty-eight adult male SD nits weighing 270-330 g were randomly divided into 4 groups (n = 22 each) : group I sham operation (S); group Ⅱ I/R; group Ⅲ , Ⅳ I/R + low and high dose naloxone ( N_1, N_2). Focal cerebral I/R was produced by occlusion of right middle cerebral artery for 90 min followed by 24 h reperfusion. In group N_1, and N_2 naloxone 1 and 10 mg/kg were injected intraperitoneally at initiation of reperfusion respectively. In group I/R normal saline was injected instead of naloxone. HR, MAP and EKG were continuously monitored throughout the experiment. He neurological deficits were scored (0 = no deficit, 4 = unable to crawl, mental dysfunction) at 2 h and 24 h of reperfusion. The animals were then decapitated. The brains were immediately removed for determination of infarct size ( n = 10) and the expression of microtubule-associated protein-2 ( MAP-2) in brain tissue ( n = 6) . In the other 6 rats in each group FICT-dextran 1 ml (50 mg/ml) was injected iv at 1 min before decapitation. The cerebral plasma volume and diameter and segment length of cerebral microvessels on the I/R side were measured using laser scanning confocal microscopy (LSCM). Results Focal cerebral I/R significantly increased neurological deficit scores, induced cerebral infarct, and decreased MAP-2 expression in the brain tissue, cerebral plasma volume and the diameter and segment length of cerebral microvessels on the I/R side. Postconditioning with 10 mg/kg naloxone significantly attenuated the above-mentioned focal cerebral I/R-induced changes. Conclusion Postconditioning with naloxone can attenuate focal cerebral I/R injury in a dose-dependent manner.