Objective To establish QAMS method to determine the contents of three alkaloids in bile processed Coptidis Rhizoma; To compare the results of QAMS with those from external standard method; To prove the feasibility of QAMS.Methods An HPLC method was developed. Berberine hydrochloride was selected as the internal reference substance. 2 relative correction factors (RCF) of berberine hydrochloride to palmatine hydrochloride and to jatrorrhizine hydrochloride were established. Obtained RCFs were used to conduct content calculation (calculated value) to complete QAMS method. At the same time, the contents (measured value) of the three components were also determined by external standard method. Calculated value and measured value were compared.Results The analysis results showed that there was no significant difference between the calculated values and the measured values of the three alkaloids in 10 batches of bile processed Coptidis Rhizoma.Conclusion The QAMS method can be applied in the determination of alkaloids in bile processed Coptidis Rhizoma.

Objective To investigate the role of PTEN protein in secretion of collagen Ⅳ and fibronectin after stimulation of transforming growth factor beta 1(TGF-?1) from renal fibroblasts of rat in vitro.Methods The cultured rat renal fibroblasts were transfected with the reconstructed adenovirus containing PTEN or adenovirus only containing green fluorescence protein(GFP).The fibroblsts were treated in four manners:control group with no added treatment,TGF-?1 group with TGF-?1 stimulation,PTEN+ TGF-?1 group with TGF-?1 stimulation after Ad-PTEN transfection,and GFP+ TGF-?1 group with TGF-?1 stimulation after Ad-GFP transfection.Invert fluorescent microscope was used to detect the GFP expression,meanwhile the PTEN mRNA was determined by RT-PCR method.36h after the transfection,TGF-?1 was added into the culture medium in a concentration of 10ng/ml.After another 24h,ELISA method was used to evaluate the level of collagen Ⅳ and fibronectin.Results The expressions of both GFP and PTEN mRNA increased obviously after the rats' renal fibroblasts were transfected with adenovirus.The secretion of collagen Ⅳ and fibronectin increased significantly in both TGF-?1 group and GFP+ TGF-?1 group compared with that in control group,and decreased markedly in PTEN+ TGF-?1 group compared with that in both TGF-?1 group and GFP+ TGF-?1 group(P

Objective To clone the human gene of Hepatitis B virus e antigen binding protein 1 (HBEBP1), which was screened with yeast two-hybrid system and bioinformatics techniques, to construct prokaryotic expression vector of pET-32a(+)-HBEBP1, and to induce the expression of recombinant protein in E. coli BL21. Methods The DNA fragment of HBEBP1 of about 372bp was amplified by reverse transcription PCR (RT-PCR), in which the mRNA was taken from HepG2 cells as the template, and cloned into pGEM-T vector. After restriction enzyme digestion identification and sequencing, the correct target DNA fragment was inserted into inducible prokaryotic expression vector pET-32a(+) and then transformed into competent E. coli BL21. By restriction enzyme digestion and PCR, the positive transformed clones were identified and induced with IPTG to obtain fusion protein. The HBEBP1 fusion protein was analyzed by Western blotting hybridization. Results The 372bp DNA fragment of HBEBP1 was amplified by RT-PCR. The recombinant expression vector pET-32a(+)-HBEBP1 was constructed successfully. After transformation with pET-32a(+)-HBEBP1 and induction with IPTG, the recombinant target protein of about 33kD was obtained, which was consistent with our anticipation. Western blotting assay showed that the protein had good specificity. Conclusions The recombinant prokaryotic expression vector pET-32a(+)-HBEBP1 is constructed, and the HBEBP1 gene is cloned successfully. The HBEBP1 fusion protein could be expressed in prokaryotic expression system of E. coli. These results lays a foundative for studying the immunogenicity and the biological characteristics of the HBEBP1 protein.

Objective To investigate the association between the lumbar vertebral fracture damage degree with the fracture classification,injury score,kyphosis deformity and nerve function injury.Methods According to the damage degree of posterior lig ament complex(PLC),the patients were divided into the PLC intact group and PLC injury group.Its relationship with PLC injury was researched by evaluating the fracture classification,injury score and nerve function injury situation in the two groups.Results The LCS score and TLICS score in the PLC injury group were (7.1±0.8) points and (8.2±0.6) points,which were higher than (5.7±0.5) points and (4.6±0.7) points in the PLC intact group.The Denis score in the PLC injury group was more serious.The Cobb angle in the PLC injury group was 29°,and which in the PLC intact group was 19°.The proportion of nerve function insufficiency in the PLC injury group was 89％,while which in the PLC intact group was only 60 ％.Conclusion The thoracolumbar vertebral fracture is closely related with PLC.PLC damage degree is positively correlated with the fracture classification,injury score,kyphosis deformity and nerve function injury degree.

Thladiantha dubia Bunge is a traditional Chinese medicine in Manzu region applied in the treatment of pain in waist and leg, or strain in lumbar without adverse reaction. By referring to the relative literatures on Thladiantha dubia Bunge from home and abroad, the study progress in the chemical constituents and pharmacological actions of Thladiantha dubia Bunge in the recent 30 years were reviewed to lay foundation for the reasonable exploitation and utilization of Thladiantha dubia Bunge.

Objective To investigate the effects of staphylococcal enterotoxin A SEA gene on target cells mediated by replicative-deficient recombinant adenovirus vector. Methods Lymphocytes of C57BL/6 mice were infected with various titers of recombinant adenoviruses. Supernatants were collected after 12 h, 24 h, 48 h, 72 h, 96 h, 120 h and 144 h of incubation and analyzed for proliferation of lymphocytes by MTT assay. IL-2 level in the culture supernatants was measured with ELISA. The killing effect of lymphocytes was also observed by MTT assay. Results Proliferation response and elevated levels of IL-2 were observed in experimental group. The killing effect on B16 cells was stronger in experimental group, which seemed to be dose-dependent with the increase of ratio of lymphocytes/target cells. Conclusions SEA gene can be expressed in lymphocytes of C57BL/6 mice mediated by replicative-deficient recombinant adenovirus vector. The expressing products can activate lymphocytes of C57BL/6 mice, which kill B16 cells in vitro.

A near infrared spectroscopy ( NIRS) method was used for rapid quality evaluation of ferulic acid content in chrysanthemum morifolium cv. ( Chuju) continuous cropping soil. Standard leverage, studentized residual and Mahalanobis distance were calculated to eliminate abnormal samples. After the initial near infrared spectrum was treated by two second derivative and Norris smoothing filter noise, 6000-4000 cm-1 wave number range and 7 factors were chosen for partial least squares ( PLS) calibration model. The results showed that good correlation was presented between the calibration set/validation set and the values determined by high performance liquid chromatography, and the calibration correlation coefficient ( Rc ) and validation correlation coefficient ( Rcv ) were 0. 9914 and 0. 9935, respectively. Root mean square error of calibration (RMSEC), root mean square error of validation (RMSEP) and root mean square error of cross-validation (RMSECV) were 0. 484, 0. 539 and 0. 615, respectively. This method was accurate, reliable, simple, rapid and nondestructive, and could be applied to the fast analysis for ferulic acid in continuous cropping soil.

Aged ; Ear, Middle ; Female ; Foreign Bodies ; etiology ; Hearing Aids ; adverse effects ; Humans

BACKGROUND:Stimulation of the pudendal nerve as a target can improve neurogenic bladder dysfunction after spinal cord injury, by adjusting the frequency, intensity, pulse width, as wel as regulating synergistic effect of detrusor and urethral sphincter. OBJECTIVE: To assess the research status of electrical stimulation of the pudendal nerve in the treatment of neurogenic bladder dysfunction after spinal cord injury. METHODS: We searched the folowing databases for articles addressing electrical stimulation of the pudendal nerve for neurogenic bladder dysfunction after spinal cord injury: PubMed, Cochrane Central Register of Controled Trials (CENTRAL), China National Knowledge Infrastructure, Wanfang Database, and VIP Database. The search was updated to July 2014, and the reference lists of the identified studies were manualy screened for additional studies. The study selection and data extraction were independently conducted by two reviewers. RESULTS AND CONCLUSION:Fourteen studies were included in this review. We derived the folowing points by analyzing the included studies: Electrical stimulation of the pudendal nerve has positive effects on rehabilitation of neurogenic bladder dysfunction after spinal cord injury; pudendal nerve electrical stimulation can modulate the coordination of the detrusor and the external urethral sphincter, improve the bladder compliance and restore bladder function by regulating pudendal-to-bladder reflex and spinal reflexes to the bladder. Electrical stimulation of the pudendal nerve may be potentialy implemented as a feasible treatment of neurogenic bladder dysfunction after spinal cord injury. More high quality researches should be conducted to clarify the efficacy and the potential active mechanisms of pudendal nerve electrical stimulation for neurogenic bladder dysfunction after spinal cord injury because the number of clinical reports published in this study area is limited, neurophysiological mechanisms underlying biphasic regulation of frequency on bladder function are not wel known, and which intensity of pudendal nerve electrical stimulation is more effective than others for the treatment of neurogenic bladder dysfunction after spinal cord injury remains unknown.

Objective To explore the suicide ideation and related factors in elderly with depressive disorder.Methods A sample of 60 old patients meeting the criteria of ICD-10 for depressive disorder and 60 normal controls were assessed by the Self-rating Idea of Suicide Scale(SIOSS),Trait Coping Style Questionnaire (TCSQ),Self-Rating Anxiety Scale(SAS),Self-Rating Depression Scale(SDS) and Pittsburgh Sleep Quality Index(PSQI).Results The score of despair factor,optimistic factor,sleep factor,conceal factor and total score of SIOSS in patients with depressive disorders (6.22±3.28,2.43± 1.47,1.87± 1.58,1.17± 1.1 1 and 10.51±4.91,respectively) were significantly higher than those of normal controls(t=5.83-14.03,P＜0.01).The scores of SIOSS in patients were significantly positively related with the scores of SAS,SDS,PSQI and N C (r=0.311-0.792,all P＜0.05),but negatively related with the scores of PC(r=-0.761,P＜0.01).Moreover,regression analysis showed that the suicide ideation was increased in accordance with serious depression,anxiety,sleep quality,higher level of education and decreased ability to positive response in elderly with depressive disorder(R 2=0.853,F=62.768,P＜0.01).Conclusion The suicide ideation in elderly with depressive disorder is more serious than that of normal people,and may be influenced by depression,anxiety,sleep quality and coping style.