ABSTRACT
Objective To investigate the chemical constituents from marine sponge Agelas sp.Methods Multi-chromatographic methods including silica gel column chromatography, Sephadex-LH20 gel permeation and HPLC were employed for the isolation and purification.The structures were identified on the basis of chemical evidence and NMR spectra data.Results Nine compounds were isolated and identified as: 4,5-dibromo-1H-pyrrole-2-carboxylic acid amide (1), 4,5-dibromo-1H-pyrrole-2-carboxylic acid (2), 4,5-dibromo-1H-pyrrole-2-carboxylic acid methyl ester (3), N-(4,5-dibromopyrrole-2-carbonyl) glycine methyl ester (4), 3-{[1-(4,5-dibromopyrrole-2-yl)-methanoyl]-amino}-propionic acid methyl ester (5), 3-{[1-(4,5-dibromopyrrole-2-yl)-methanoyl]-amino}-propionic acid ethyl ester (6),isoindole-1,3-dione (7), 2 (3H)-benzothiazolone (8), and manzacidin C (9).Conclusion Compounds 4～9 were isolated from the sponge of Agelas sp.for the first time,and compounds 4～6 were new natural products.
ABSTRACT
Objective To investigate the application effect of flexible management in nursing of general surgery department. Methods 21 nursing staff and 836 patients from January to October, 2007 were selected as research object, and were given flexible management. 21 nursing staff and 797 patients from January to December were selected as the control. The influence of flexible management on nurses and patients and satisfaction degree with nursing work before and after application of flexible management were compared. Results Working and learning enthusiasm greatly improved,educational background and professional titles of nurses increased after application of flexible management. The average hospitalization time was 28 days,the per capita cost was 12 131 yuan,satisfaction degree with nursing was 87.0% before application of flexible management, but the average hospital stay of patients decreased to 20 days, the per capita cost decreased to 8764 yuan and satisfaction degree with nursing increased to 97.0% after application of flexible management. Conclusions Application of flexible management in nursing care of general surgery department showed significant effect,it is suitable for more application in practice.
ABSTRACT
Sect. Aptera (Gentiana L.) is the plant origin of Traditional Chinese Medicine (TCM) "Qinjiao", which is used to treat rheumatism and pains with a long history. The plants of Sect. Aptera mainly contain iridoids, triterpenes and steroids, and possess anti-inflammatory, analgesia, stomach invigorate and bacteria inhibitory effects, etc. Herein, we reviewed the advances of chemical and pharmacological investigations of Sect. Aptera for further research.