Objective To establish the RP-HPLC method for determination of Bruchine and Strychine in Pingxiao Tablet. Methods The lichrospher C18 (4.6 mm?250 mm, 5 ?m) was Used as the stationary phase. The Mobile phase consisted of water-acetonitrile (60∶40) with 1.7 g sodium dodecylsulphate and 3.4 g KH2PO4 in 1 000 mL mixture. The Detecting wavelength was 254 nm and flow rate was 1.0 mL/min. The column temperature was 25 ℃. Result The linear ranage of Bruchine and Strychine were 0.102～0.918 ?g and 0.208 ～ 1.872 ?g respectively. The recovery rates of bruchine and strychnine were 101.07% (RSD=2.26%) and 99.29% (RSD=2.79%) respectively. Conclusion This method is realiable and accurate, the method can be applied to determination the contents of Bruchine and Strychine in Pingxiao Tablet.

Objective To observe the immunohistochemical changes of ICAM-1,MMP-2 and MMP-9 in the lungs of immunocompromised rats with Pseudomonas aeruginosa pneumonia and their relationships with lung inflammation.Methods After the establishment of pseudomonas aeruginosa pneumonia infected immunocompromised rat mode,the pathological changes of lungs were observed, lung wet/dry ratios and total protein concentration in bronchial alveolar lavage fluid were tested,and imunnohistochemical study of ICAM-1,MMP-2 and MMP 9 in lung tissue were performed.Results 1.The staining intensity of ICAM-1 in alveolar epithelial cells turned stronger in rats with pulmonary infection than those without of both groups(P＜0.05);2.The staining intensity of MMP-2 in lung tissue was stronger in rats with pulmonary infection than those without infection in both groups,and reached peak at 6～9 h after inoculation.Immunohistochemical changes of MMP-9 exhibited a similar pattern,4.Immunohistochemical changes of ICAM-1,MMP-2 and MMP-9 showed some correlation with numbers of polymorphonuclears in lung tissue(P＜0.05);5.A correlation between the stai- ning intensity of MMP-9 in bronchial epithelial eells and total protein concentrations were observed(r_s =0.484,P＜0.05),similar association were found between the staining intensity of MMP-2 in alveolar epithelial cells,endothelium of arterioles and venules and tissues beneath endothelium and to- tal protein eoncentrations in bronchial alveolar lavage fluid(r_s were 0.457,0.492 and 0.429,respec- tively,P＜0.05).Conclusion In immunocompromised rats,the staining intensity of ICAM-1, MMP-2 and MMP-9 in lung tissue of those with pseudomonas aeruginosa pneumonia were stronger than those without infection,and the changes were demonstrated some correlation with the levels of polymorphonuclears infiltration or severity of lung injury.

China ; epidemiology ; Humans ; Occupational Diseases ; epidemiology ; Occupational Health ; Rural Population ; statistics & numerical data

Adult ; China ; Follow-Up Studies ; Humans ; Middle Aged ; Mining ; Rural Population ; Silicosis ; mortality

Adult ; Bone Neoplasms ; pathology ; surgery ; Femur ; pathology ; surgery ; Humans ; Male ; Osteochondroma ; pathology ; surgery ; Young Adult

Adolescent ; Adult ; Child ; Female ; Hematopoietic Stem Cell Transplantation ; adverse effects ; methods ; Humans ; Infection ; etiology ; therapy ; Lymphoma ; microbiology ; surgery ; Male ; Middle Aged ; Young Adult

Adult ; China ; Humans ; Middle Aged ; Occupational Health Services ; Pneumoconiosis ; prevention & control ; Universal Precautions

0.05).Conclusion The application of oxygen inhalation with a special facial mask during propofol-sedated gastroscopy appears to be more safer than that of oxygen inhalation via snuffle tube.

OBJECTIVE: To select and breed elite variety of Dendrobium officinale, thus to conserve the wild germplasms and promote the healthy developing of D. officinale industry. METHODS: System breeding method was employed for the breeding of new variety developed from wild germplasm oi Dendrobium officinale. Yield of fresh stems and leaves, quality characters including dried stem rate and raw polysaccharide content etc. were tested. ISSR molecular marker technique was used to distinguish genetic difference between new variety and other D. officinale materials. RESULTS: New elite variety 'Xianhu 2' was bred successfully with high polysaccharide content, fine adaptability, and high yield. 'Xianhu 2' had significantly higher yields of fresh stems-leaves and stems than D. officinale var. 'Yunnan Ruanjiao' and D. officinale var. 'Xianhu 1' and significantly higher dried stem ratio and raw polysaccharide content than 'Yunnan Ruanjiao' at 12, 24, and 36 m, respectively. ISSR analysis indicated that there were distinct differences in DNA level between 'Xianhu 2' and other D. officinale varieties and lines. D. officinale var. 'Xianhu 2' got its certificate for commerce releasing by Zhejiang Province in December 2011. CONCLUSION: 'Xianhu 2' is a new elite variety with good synthetic agronomic traits. Its breeding is beneficial for the cultivation of D. officinale.

Animals ; Animals, Newborn ; Apoptosis ; drug effects ; Cerebral Cortex ; drug effects ; metabolism ; pathology ; Female ; Hypoxia-Ischemia, Brain ; drug therapy ; Male ; Malondialdehyde ; metabolism ; Nitric Oxide Synthase ; metabolism ; Nitroso Compounds ; therapeutic use ; Rats ; Rats, Wistar