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1.
Article in Chinese | WPRIM | ID: wpr-746319

ABSTRACT

Objective Animal experiment is indispensible for the progress of medicine and medical research.Experimental animals deserve basic respect and care.This paper reviewed the history and status of the experimental animal welfare nationally and internationally to identify the ethical problems existed in animal experiments,and finally discuss the establishing of ethical review system of experimental animals.Methods According to literature review,as well as summarizing the operating practice in the affiliated hospital of Chengdu university of TCM,this study analyzed the problems in the field of experimental animal welfare protection.Results Many countries,such as Britain,Germany and the United States,have legislation on the welfare of experimental animals.There are no such laws in China while departmental regulations has formulated.At present,the weak cognition of bioethics among medical personnel,lack of corresponding certification system,lack of the ethical review system of laboratory animal are still unsolved problems.This paper summarizes the principles of ethical review,the documents of review and the elements of review.Conclusions The protection of experimental animals is a systematic project,and ethical review as the first link of animal experiments can play a good role in promoting animal experiment.

2.
Article in Chinese | WPRIM | ID: wpr-528440

ABSTRACT

Objective To study the imaging findings of pulmonary lymphangitic carcinomatosis (PLC) and discuss it′s clinical value. Methods The imaging materials of 40 cases with PLC which were proved by bronchoscopic or pleural or open-lung biopsy were retrospectively analyzed, and the clinical application of imaging diagnosis were investigated. Results The primary tumorous pathological types of PLC included:13 cases peripheral type carcinoma of lung,2 cases central type carcinoma of lung,11 cases mammary cancer,6 cases gastric carcinoma,4 cases pancreatic carcinoma,3 cases renal carcinoma,1 case colon carcinoma. The major imaging features of PLC were showed as pleural nodes, lobular core nodes, intralobular small reticular and nodular shadows, small beaded thickened interlobular septums, beaded thickened bronchovascular bundles, tumescent pulmonary hilar and/or mediastinal lymph nodes. Conclusion PLC possess relative imaging feature, particularly HRCT may accurately reflect pathological feature of PLC. Imaging diagnosis is a satisfactory method in diagnosing pulmonary lymphangial metastasis of malignant tumor.

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