Objective: To investigate the neuroprotective effect of mesenchymal stem cells (MSC) combined with low⁃intensity transcranial ultrasound (LITUS) treatment on traumatic brain injury (TBI) . Methods: Seventy⁃two SD rats were randomly divided into four groups , namely , control group , TBI group , MSC injection group , and combined treatment group , with 18 rats in each group. TBI model was established by applying a pneumatic controlled cortical impingement instrument. Within 24 h after surgery , MSC was injected into the injury site by microinjector and microinjector pump using in situ injection. After injection , the injury site was treated with LITUS for 28 consecutive days using an ultrasound stimulator. The modified neurological functioning score ( mNSS) was performed on rats in each group at 1 , 3 , 7 , 14 , 21 and 28 days postoperatively , and then the brains were extracted to detect pathological changes at the injury site and the mRNA and protein expression of brain⁃derived neurotrophic factor (BDNF) , growth associated protein⁃43 ( GAP⁃43) , postsynaptic density protein⁃95 ( PSD⁃95 ) and glial fibrillary acidic protein(GFAP) by HE staining , immunohistochemistry , Western blot and RT⁃PCR. Results: Compared with the control group , the mNSS score increased in the TBI group (P < 0. 05) , the expression of GAP⁃43 and PSD⁃95 decreased , and the expression of GFAP increased ( P < 0. 05 ) ; Compared with the TBI group , the mNSS score of MSC group was lower (P < 0. 05) , the expression of BDNF , GAP⁃43 , PSD⁃95 increased , and the expression of GFAP decreased (P < 0. 05) ; mNSS scores were lower in the combined treatment group than those in the MSC group (P < 0. 05) , the expression of BDNF , GAP⁃43 , PSD⁃95 increased , and the expression of GFAP decreased (P < 0. 05) . Conclusion The mechanism by which MSC combined with LITUS exerts neuroprotective effects in TBI may be related to the promotion of BDNF , GAP⁃43 , and PSD⁃95 expression and reduction of GFAP expression.

Parkinson′s disease (PD) is the second most common neurodegenerative disease following Alzheimer′s disease, including motor and non?motor symptoms. Non?motor symptoms are mainly autonomic nervous dysfunction,which occur about 5-20 years earlier than motor symptoms. Abnormal blood pressure regulation is a common manifestation of autonomic nervous dysfunction. Long?term abnormal blood pressure can seriously hamper the quality of life and trigger deterioration of motor symptoms. Thus, it is necessary to obtain correct understanding of the etiology, mechanism, clinical features, diagnosis and treatment of PD with blood pressure regulation disorders in order to reduce the mortality rate and the burden of medical health. This article reviews the influencing factors,characteristics,mechanisms and management of PD with blood pressure regulation disorder.

Parkinson′s disease (PD) is the second most common neurodegenerative disease following Alzheimer′s disease, including motor and non-motor symptoms. Non-motor symptoms are mainly autonomic nervous dysfunction, which occur about 5-20 years earlier than motor symptoms. Abnormal blood pressure regulation is a common manifestation of autonomic nervous dysfunction. Long-term abnormal blood pressure can seriously hamper the quality of life and trigger deterioration of motor symptoms. Thus, it is necessary to obtain correct understanding of the etiology, mechanism, clinical features, diagnosis and treatment of PD with blood pressure regulation disorders in order to reduce the mortality rate and the burden of medical health. This article reviews the influencing factors, characteristics, mechanisms and management of PD with blood pressure regulation disorder.

The paper reports the development of a quality evaluation method for Angelica different processed products. The data of high-performance liquid chromatography, water, total ash and extract were analyzed with SPSS Clementine 11.0 software. Discriminant analysis (DA) established the classification model and parameter for Angelica different processed products. Fish's discriminant functions of Angelica different processed products were generated using 8 predictor variables selected from 59 indexes. The correct rate of discriminating back substitution is 96.7%. Angelica different processed products can be accurately and reliably recognized and validated with DA of SPSS Clementine 11.0 software.

OBJECTIVETo establish a chemical fingerprint method for reorganizing and validating angelica different processed products.

METHODA high-performance liquid chromatographic method was developed to establish the fingerprint. Principal component analysis, hierarchical cluster analysis and discriminate analysis were applied to study HPLC finger printing and chemical pattern reorganization.

RESULTThere were difference of characteristic peaks and its relative peak area of HPLC fingerprints between different processed products. Fish's discriminate functions were generated by using six selected predictor variables, the tested samples of different processed products were classified with 100% accuracy, and discriminate analysis plots for the five groups were well-resolved.

CONCLUSIONThe developed HPLC finger print, combined with chemometrics, can accurately identify and validate angelica different processed products, the research provide theoretical basis for the processing mechanism and quality assess of angelica different processed products.

Angelica ; chemistry ; classification ; China ; Chromatography, High Pressure Liquid ; methods ; Drugs, Chinese Herbal ; analysis ; standards ; Food Handling ; Plant Roots ; chemistry ; Quality Control

Objective To explore the characteristics of mycobacterium dependend antituberculous drug. Methods 137 strains of mycobacterium were tested for resistance by the absolute concentration method on Lowenstein Jensen medium. Dependent positive were the coloun that on higher concentration drug medium stronger than lower concentration than controls. Results 12(8.76%) of the 130 strains M. tuberculosis and 7 strains nontuberculous mycuberculous (NTM) were found dependent, in which strains dependend on INH, RFP and SM were 3(2.19%), 10(7.3%) and 3(2.19%) respectively, 4(2.92%) were dependend on two drugs. Conclusions Were NTM dependent, Not found all detected from multiple strains.