Aim To observe changes of gene expression profile in rat heart , liver and brain treated with iptakalim using cDNA microarray and analyze its molecule mechanism about pharmacology and treatment. Methods ①Rats were treated with iptakalim for 14 days at a dose of 3 mg?kg-1 by gavage. Total RNA was extracted from heart, liver and brain tissues and reversely transcribed to cDNA, which were labeled with Cy3 and Cy5 fluorescent as probes and hybridized to Gene Chip (BiostarR-40s). Scan array 3 000 was used for scanning the hybridizing signals and ImageGENE 3.0 for data analysis. Data were confirmed using RT-PCR. ②Rats were randomly divided into normal control group and 4 iptakalim groups. Iptakalim was administered orally at doses of 1, 3, 9 mg?kg-1 body weight per day for 2 weeks. The last group was orally administered at a dose of 9 mg?kg-1 body weight per day for 2 weeks, and iptakalim was withdrawn for 10 days. We observe effects of iptakalim on hemodynamics parameters in anesthetized rats and changes of myocardial structure, myofilament ultra-structure after 24h at the end of the last administration. Results ① The new chemical entity iptakalim had selectivity on changes of gene expression in rat heart, liver and brain. Compared with control group, 236 genes are changed (100 increased and 136 decreased) in rat hearts and 6 transcripts (6 increased) in rat livers, there are no changes on gene expression in rat brains. ② In anesthetized rats, iptakalim at doses of 1, 3, 9 mg?kg-1 neither affected pharmacological effects on cardiovascular hemodynamics parameters nor had pathological changes on myocardial morphological and ultrastructure. Conclusion Under the same experimental conditions, the new chemical entity iptakalim has selectivity on changes of gene expression in vital organs. Iptakalim shows no side-effects on cardiac function and tissue structure.

[Objective]To investigate the clinical treatments of perioperative complications in patients with cervical cord injury.[Method]Totally 155 cases of cervical cord injury associated with fracture of the cervical spine were enrolled in this study from January 1997 to December 2007.Eighty-five cases were treated with anterior internal fixation,66 with expansive open-door laminoplasty of the cervical spine,and 4 with one stage anterior and posterior approach operations.[Result]Forty-five cases were complicated with hyperpyrexia,31 with respiratory dysfunction,43 with pulmonary infection,70 with hyponatremia,25 with urinary system infection,3 with stress ulcer,10 with deep venous thrombosis,5 with palsy of the C5 nerve root,3 with injury of superior laryngeal nerve or recurrent nerve,1 with leakage of cerebrospinal fluid,2 with cervical hematoma,1 with loosening of interal fixation,1 with esophageal fislula,and 10 died.[Conclusion]There are many perioperative complications from cervical cord injury.To pay attention to the treatments of perioperative complications will bring a satisfactory clinical effect.

Objective To explore the differences between the conservative treatment and the operative treatment in the management of cervical spinal cord injury, and the timing of the operation. Methods The therapeutic effectiveness o f the 45 cases who were treated from October 1996 to January 2002 was analyzed. 21 of them underwent conservative treatment and 24 operative treatment. The corr elation between the therapeutic effects of the operation and its timing was expl ored. Results The myeloid functional recovery was poor in the patients who had b een treated with conservative means but good in those who had been given an oper ation. The earlier the operation, the more effective it could be, and the higher the probability of the myeloid functional recovery. Conclusions The operative treatment promises better outcome than the conservative treatment. To get the be st effects, the operation should be done within one month after the injury, for the longer the lapse between the injury and the operation, the worse the effect.

Objective To examine the bacteriostasis of baicalin against Escherichiacoli strain carrying NDM-1 gene.Methods Minimal inhibitory concentration(MIC)and minimal bactericidal concentration(MBC)were determined by broth dilution method.Synergy function was designed withcheckerboard method.Anti-infection effect in vivo of baicalin was observed in mice with bacteremia.Results In vitro antibacterial tests showed that the MIC and MBC baicalin were 8 mg/ml.Synergistic inhibitory effect was observed between baicalin and imipenem (FIC=0.125).In vivo inhibition experiments showed that ba-icalin had decreased the mortality of 25% of Escherichiacoli Strain carrying NDM-1 gene infection in mice.Conclusion Ba-icalin has antibacterial effect on NDM-1 E.coli.

Objective To observe the effect of medicinal wine regimen which is guided by the theory of constitution distinction of TCM.Methods 76 patients were selected from all patients enrolled in wine style health experience from February 2011 to December 2011 in line with the corresponding physical characteristics.Among these 76 patients,23 patients were Yang deficiency constitution,34 were phlegm dampness constitution,and 19 were yin deficiency constitution.All these patients were taken a physical and chemical examination after taking the medicinal wine for a month.Results ①Examination index comparison before and after the treatment in different physical constitution patients:in phlegm dampness constitution patients the pulse were slowed (t=2.122,P＜0.05) after taking the blood fat reducing wine,and physical type of conversion points were lowered (t=4.86,P＜0.01); in Yang constitution patients,the systolic blood pressure (FT4),free thyroxine T4,physical type of conversion points were all significantly decreased [t values were 2.735,3.672,12.93,P＜0.05 or 0.01] after taking Guilu Erxian wine; in Yin deficiency patients,adrenocorticotropic hormone (ACTH),interleukin-1 (IL-1),interleukin-2 (IL-2) were all increased [t values were 2.355,2.645,3.829,P＜0.05 or 0.01] after taking Ziyin-Buxue wine.② Comparison of the clinical curative effect:according to the type of constitution transformation changes,the total effective rate was more than 70％.According to Ridit test,except yin deficiency physique (t=1.85,P＞0.05),patients in both phlegm dampness constitution and yang deficiency constitution groups showed statistical difference after the treatment than before (t=4.86 and 12.93,P ＜0.01).Conclusions Blood fat reducing wine can improve phlegm dampness constitution; Ziyin-Buxue wine can improve Yin deficiency constitution and enhance immune function; Guilu Erxian wine can lower blood pressure and improve Yang deficiency constitution.

BACKGROUND:Researches showed that the enriched environment could improve the cognitive dysfunction of rats with vascular dementia. However, there are few reports regarding its mechanism of action.
OBJECTIVE:To explore the effect of enriched environment on the cognitive dysfunction of rats with vascular dementia from the behavioral level.
METHODS:Vascular dementia models weremade by permanent ligation of bilateral common carotid arteries and were divided into vascular dementia group (n=8) and enriched environment group (n=12). Vascular dementia group was taken care under conventional breeding environment for 30 days, while the enriched environment group was subjected to the enriched environment for 30 days. Morris water maze test was adapted to test the cognitive function of rats between two groups. Immunohistochemistry and immunoblotting were applied to observe the number ofDCX+cels and DCX protein level in both groups. The number of DCX-labeled cels co-expressing NeuN was observed using immunofluorescence technique.
RESULTS AND CONCLUSION:(1) The escape latency in the vascular dementia group was longer than that in the enriched environment group (P< 0.05). The times across the platform was less in the vascular dementia group than that in the enriched environment group (P< 0.05). (2) In comparison with the enriched environment group, the number of DCX-positive cels andits protein level in the piriform cortex were significantly decreased in the vascular dementia group (P< 0.05). (3) The number of DCX/NeuN co-labeled cels in the piriform cortex was significantly less in the vascular dementia group than in the enriched environment group (P< 0.05). (4) These findings suggested that enriched environment could improve the cognitive dysfunction of rats with vascular dementia through promoting the expression and differentiation of the immature neurons.

Objective To analyze setup errors for irradiation of pelvic carcinoma by online conebeam CT (CBCT) scanning and to calculate the external margins from clinical target volume (CTV) to planning target volume (PTV) in treatment planning. Methods Twelve patients with rectal or prostate cancer were enrolled in this study. Translational errors (x,y,z) and rotational errors (u,v,w) were obtained by using CBCT in radiotherapy. Results The set-up errors were gathered from 229 sets of CBCT in 12patients. The systemic ± random errors on x,y,z, u,v and w axes were (0.49 ± 1.18) mm, (-0. 11 ±3.45) mm, (-2. 00 ± 1.59) mm, 1.14°±0. 67°, 0. 42°±O. 94°and -0. 32°±±0. 68°, respectively. Setup errors in the left-right, anterior-posterior, and superior-inferior directions were 4. 6 mm, 12. 5 mm, and 6. 2 mm, respectively. Conclusions Set-up errors were unavoidable in pelvic carcinoma irradiation. To minimize the influence of set-up errors, we suggest a PTV margin of 5 mm, 15 mm and 10 mm in the leftright, anterior-posterior and superior-inferior directions, respectively.

Aim To investigate the role of Wnt/β-cate-nin signaling pathway on the baicalin-induced osteo-genic differentiation in rat bone marrow derived mesen-chymal stem cells ( rBMSC ) . Methods rBMSC was isolated and cultured by adherence screening method. Alkaline phosphatase ( ALP) amount, CFU-FALP and mineralized nodules were compared between each ba-icalin group and vehicle control group at different time points. Real time q-PCR was employed to evaluate the mRNA level of Wnt signaling-related marker ( Wnt10a, GSK-3β,β-catenin and LEF1) after baica-lin treatment. Protein expression of β-catenin and Runx2 was measured by Western blot. Results Ba-icalin significantly increased ALP activities from day 3 to day 7 . The formation of CFU-FALP and mineralized nodules remarkably increased after rBMSC was treated with1, 10, 50 μmol · L-1 baicalin. mRNA levels of Wnt10a, β-catenin, GSK-3β, LEF1and osteocalcin were enhanced significantly in baicalin-treated group compared to control group. Protein expression of β-catenin and Runx2 was also elevated. Conclusion Baicalin ( 0. 1 to 50 μmol · L-1 ) promotes the osteo-genic differentiation and maturation of rBMSC, in which Wnt/β-catenin signaling pathway might be in-volved.

Objective To investigate the phenotype and genotype in a carbapenem resistant L.adecarboxylata strain.Methods Microbial identification and drug susceptibility test was done with VITEK II Compact.Carbapenemases genes were detec-ted by PCR methods.Results The strain of carbapenem resistant L.adecarboxylata produced IMP-1 carbapenemase.Con-clusion L.adecarboxylata was found only rarely in the clinical isolates.This was the first Isolate of L.adecarboxylata pro-ducing IMP-1 metallo-beta-lactamase.

[Objective]To investigate the genetic polymorphisms of the CYP2C19 gene in the elderly Chinese Han populations of Guangzhou,and compare the frequencies of CYP2C19 gene polymorphisms in different populations,in order to provide accurate data for the appropriate prescription.[Methods]To detect the genetic polymorphisms of the CYP2C19 gene by the DNA microarray,and compare the frequencies of CYP2C19 gene polymorphisms in Chinese Han populations from different areas and the different races.[Results]There were 2312 case samples in our study. The allele frequencies of CYP2C19*1,CYP2C19*2 and CYP2C19*3 were 64.27%,30.75%,and 4.98%,respectively. As the genotype,EM(*1/*1)was 41.44%(n=958),IM(*1/*2,*1/*3)was 45.67%(n=1056),and PM(*2/*2,*2/*3 and*3/*3)was 12.89%(n=298). The ratios of EM and IM in Chinese Han populations from different areas and all the subtypes of the CYP2C19 genotype in different minority were statistically significant. As the races,there were difference in all the subtypes of the CYP2C19 genotype when Asian populations were compared with white races(P<1304.64)and black races(P<0.01),which was also statistically significant.[Conclusions]The distributions of the CYP2C19 gene polymorphisms were significantly different in Chinese han populations and in different races,and the main subtypes of the CYP2C19 genotype in the elderly of Chinese han populations were IM and EM,which is beneficial for prescribing appropriate in the elderly populations.