The neurotransmitter plays an important role in the neurologic functional recovery of animals and patients with spinal cord injury. This article reviews the neurotransmitters in spinal cord injured of rats and the effect of some therapy on them.

Objective To investigate the anti-H5N1 activities and chemical constituents from stems and leaves of Buddleja lindleyana Fort.. Methods Constituents were separated through AB-8 macroporous resin, chromatography of silica gel, Sephadex LH-20 and recrystallization. Structures of the compounds were identified by analysis of physicochemical properties and spectral data. Results Ten compounds were isolated and identified as linarin(1), rutin(2), luteolin(3), quercetin(4), apigenin(5), hesperetin (6), salidroside (7), oleanolic acid (8),β-sitosterol (9), and daucosterol (10), respectively. Conclusion Compounds 2-7 were obtained from this plant for the first time.

Objective To evaluate the significance of fiberoptic bronchoscopic brush cytology in the diagnosis and histological classification of lung carcinoma.Methods Data of 309 patients with lung carcinoma were retrospectively analyzed.Both bronchoscopic cytology and histology diagnosis were available.The positive rate of bronchoscopic cytology and tissue biopsy were calculated respectively.The classification accuracy of cytological diagnosis for lung carcinoma was evaluated.In tissue biopsy standard,evaluated the significance of bronchoscopic cytology in diagnosis and histological diagnosis.Results The positive rate of bronchoscopic cytology and tissue biopsy were 86.1％ (266/309) and 83.8％ (259/309),respectively.Bronchoscopic cytology combined with bronchial biopsy could obviously improve the positive rate to 94.2％ (291/309) in lung carcinoma diagnosis.Taking the tissue biopsy histological type as a standard,the cytotyping accuracy for brush method was 85.1％(74/87) in squamous carcinoma,82.4％(108/131) in adenocarcinoma and 100％(11/11) in small cell carcinoma for higher.However,the accuracy in diagnosing poorly differentiated carcinomas was only 12.2％ (5/ 41).Conclusion Fiberoptic bronchoscopic brush cytology plays an stable and important role in diagnosing lung carcinomas and histological type determination.However,it has limited use in diagnosing poorly differentiated carcinomas.

OBJECTIVE:To evaluate the application of prescription comment software in our hospital. METHODS:552 pre-scriptions were evaluated by pharmacist A,B and software,and the Kappa values were calculated to evaluate the reliability of the software. The results of comment by pharmacist B and by software were combined (serial test and parallel test),and then com-pared with the results of comment by pharmacist A. The sensitivity,specificity and Youden's index were calculated to evaluate the reliability of the software. The comment results of 552 prescriptions by pharmacist A for twice were compared to calculate Kappa value,and it was used to evaluate the comment consistency of pharmacist A. RESULTS:The pharmacist A,B comment results and software comment results showed poor consistency,and Kappa value were 0.020 2 and 0.002 0,with significant difference (P<0.001);pharmacist A comment results had strongest consistency with pharmacist B comment results,and Kappa value was 0.843 0,with no significant difference(0.1

Objective To observe the changes of telomere length and MMPs level in human fibroblasts induced by UVB, and to explore their roles on skin photoaging .Methods Human skin fibroblasts were extracted and cul-tured.The 5th fibroblasts were irradiated by UVB .The morphology of fibroblasts were microscoped , and the length of telomere and the mRNA expression of COL1a1 and hTERT were detected by RT-qPCR.The expression of MMP-3 and MMP-1 were detected by Western blot .Results The fibroblasts gradually became round , wrinkled and disorderly arranged after 30 mJ/cm2 UVB irradiation for 24 h.The mRNA level of COL1a1 and hTERT and the expression of MMP-3 and MMP-1 were significantly increased after UVB irradiation compared with control , and the length of telomere was shortened .Conclusions UVB may frigger the early process of photoaging by the morphologi-cal changes of human skin fibroblasts and increasing the expression of MMP-3 and MMP-1 .

Objective To study the effect of early mechanical ventilation in treatment of patients with severe acute pancreatitis(SAP).Methods Fifty-two patients with SAP admitted in the First People's Hospital of Zhaoqing from January 2010 to January 2015 were randomly allocated into two groups (n =26),early mechanical ventilation group(observation group) and conventional mechanical ventilation group(control group).Patients in the observation group treated with early lung protective ventilation when PaO2 ＜ 13.3kPa.Patients in the control group treated without mechanical ventilation untill PaO2 ＜ 8kPa.The symptoms,the extent of inflammatory reaction,the severity of lung lesions and the mortality of two groups were compared through monitoring vital signs,abdominal circumference,APACHE Ⅱ score,bladder pressure,oxygenation index (PaO2/FiO2),C reactive protein (CRP),procalcitonin (PCT),hospital stay and mortality.Results No statistically significant differences in the APACHE Ⅱ score,bladder pressure,oxygenation index,CRP and PCT in two groups before treatment were observed(P ＞ 0.05).The APACHE Ⅱ score (12.8 ± 7.6) points,bladder pressure (14.9± 7.9) cmH2O,CRP (48.8 ± 30.1) rmg/L,PCT (1.25 ± 0.55) μg/L,mortality (3.84％) of the observation group after treatment were significantly lower than those of the control group (t =2.057,2.091,3.252,2.697,x2 =4.305,all P ＜ 0.05),while the oxygenation index in the observation group [(300.0 ± 34.9) mmHg] was significantly higher than that in the control group [(278.1 ± 32.8) mmHg],the difference of the two groups was statistically significant (t =3.322,P ＜ 0.05).Conclusion Early lung protective ventilation is safe and effective for treatment of the patients with SAP.

Objective To evaluate the in vitro effect of ferulic acid on the proliferation of,as well as melanin synthesis,tyrosinase activity and expressions of c-kit and ERK proteins in cultured normal human epidermal melanocytes.Methods Cultured normal human epidermal melanocytes were treated with various concentrations of ferulic acid for different durations,and those remaining untreated served as the control.Then,3-(4,5-dimethylthiazol2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium,inner salt (MTS) assay was performed to estimate cell proliferative activity at 24,48 and 72 hours,sodium hydroxide solubilization method to quantify melanin content in melanocytes at 72 hours,dopa oxidation assay to evaluate tyrosinase activity at 72 hours,Western blot to measure the expressions of c-kit and ERK1/2 proteins at 72 hours.Results Cellular proliferative activity was significantly inhibited in melanocytes treated with ferulic acid of 0.01,0.1 and 1 mg/ml for 24,48 and 72 hours compared with untreated melanocytes (all P ＜ 0.05),and the 72-hour treatment with ferulic acid of 1 mg/ml showed the strongest inhibitory effect.Ferulic acid at 0.01,0.1 and 1 mg/ml all markedly suppressed melanin synthesis and tyrosinase activity,decreased the expressions of c-kit and ERK1/2 proteins in melanocytes,with significant differences in these parameters between ferulic acid-treated and untreated melanocytes (all P ＜ 0.05).Conclusions Ferulic acid could downregulate the proliferation of,as well as melanin synthesis,tyrosinase activity,and expressions of c-kit and ERK proteins in cultured human epidermal melanocytes.

OBJECTIVE: To study mutations in the GJB2 gene in Kazak patients with nonsyndromic hearing impairment from Xinjiang. METHOD: One hundred and ninety-three cases of Kazak from the Xinjiang region, including 97 cases of hearing loss and 96 cases of normal people, were performed mutational analysis of the GJB2 coding region by PCR-direct sequencing. RESULT: Eight kinds of mutation were found in the encoding region of hearing impairment group:12 cases of 35 delG homozygous, 5 cases of 79G>A homozygous, 8 cases of 79G>A heterozygous, 1 case of 79G>A heterozygous and 608T>C heterozygous, 5 cases of 79G>A heterozygous and 341A>G heterozygous, 4 cases of 235 delC heterozygous, 2 cases of 341A>G heterozygous, 1 case of 439T>G heterozygous, 1 cases of 457G> A heterozygous, 2 cases of 521G>A homozygous. Four kinds of mutations found in the normal group were confirmed as common polymorphic mutation. CONCLUSION The study suggests that the GJB2 gene mutation of the Kazak deaf population in Xinjiang has ethnic and regional characteristics. There is a rather high carrier frequency of GJB2 mutation of Kazak patients in Xinjiang. In this study the 35 delG mutation is a common mutation of Kazak patients.
Adolescent ; Adult ; Child ; Child, Preschool ; China ; Connexin 26 ; Connexins ; genetics ; Deafness ; genetics ; Ethnic Groups ; genetics ; Humans ; Infant ; Mutation ; Young Adult

Objective To study and evaluate the therapeutic efficacy of CT-guided radioactive 125Iseeds implantation combined with percutaneous vertebroplasty for spinal vertebra metastases.Methods Fifteen patients and 21 lesions were enrolled in this study.Based on the CT images,a computer-based treatment planning system (TPS) was used to determine the optimal seeds distribution.Under CT-guided,radioactive 125I seeds were implanted into the lesions.Based on the X-ray and CT image after the implantation,quality check was carried out with TPS.The ostalgia-relieving degree and the image alterations of the spinal vertebra metastases lesions were observed.Two months later,15 patients underwent percutaneous vertebroplasty with DSA guidance,bone cement was made according to the ratio methyl acrylic resin polymer/liquid methyl acrylic resin monomer/contrast as 3 ∶ 2 ∶ 1 in injecting paste form.The puncturation through pedicle of vertebral arch and lateral posterior body of vertebra was both adopted in thoracic and lumbosacral vertebrae site.After making sure that the puncturation was completed and there was no leakage in vertebral body,the bone cement was injected into vertebral body quickly.Results Accepted radioactive 125I seeds plantation,relief of pain was obtained.Among 15 patients,8 patients were powerful,6 patients were effective and 1 patient was inefficiency.After treatment,the pain grading significantly decreased.After treatment for 2 months,CT was used to recheck,7 lesions were local controlled,12 lesions had no changes,2 lesions were progress.The responsive rate was 90.5％ (19/21).No serious side-effect happened.Conclusions Radioactive 125I seeds implantation can be a safe and effective method in treating spinal vertebra metastases and obtaining good clinical effects with minimal damage and few complications.Percutaneous vertebroplasty can strengthen the target and relief pain quickly.CT-guided radioactive 125I seeds implantation combined with percutaneous vertebroplasty for the treatment of spinal vertebra metastases has complementary advantages.