Objective To discuss the standardized management strategies of medical equipment quality control in the whole life cycle of medical equipment.Methods The quality control was prepared from the aspects of management,technology and materials firstly,then quality control object was determined through a comprehensive risk rating system with quantitative values at risk,and overall analysis was executed with PDCA method finally.Results The management of medical equipment quality control was further standardized,the risks during medical equipment utilization were reduced,and the comprehensive benefit of the hospital was increased.Conclusion The standardized management of medical equipment quality control is of great importance to enhance medical quality.

Skin temperature is relative to blood circulation. The temperature of transplanted skin is one of the most important indexes describing blood circulation after operation. This paper introduces a blood circulation monitor for transplanted skin, which monitors blood circulation through continuous testing of temperature.

Research teams work together to solve the technical bottleneck in the Panax notoginseng industry.These research directions mainly focus on breeding of new variety,alleviating the continuous cropping obstacles,building standard system and so on.We used methods such as biotechnology,information technology and so on,to realize digitization,network and intellectualization in the process of selection of producing areas,field management,harvest storage,solved key issues of the precise selection of producing areas,variety breeding,soil improvement,fertilization management,and realized the precision and optimization of ginseng cultivation.We built the composite technology system of pollution-free notoginseng.This technology system mainly contained the breeding of new cultivar,the composite technology of soil improvement,the cultivation system of pollution-free notoginseng and quality traceability system.A new disease-resistant cultivar of notoginseng was bred,which offered feasibility for the notoginseng continuous cropping.We first presented composite improvement technology of notoginseng continuous cropping soil.This improvement technology has been used in the field.This technology system of soil restoration and improvement guaranteed notoginseng continuous cropping.A first standard system of pollution-free notoginseng was issued.It established standard of high-quality notoginseng materials.Finally,quality traceability system of notoginseng was finished,which safeguarded the controllable quality.This composite technology system offers references for the cultivation of other Chinese herbal medicines.

Hyperhomocysteinemia (Hhcy) is an independent risk factor for Alzheimer's disease (AD). Visual dysfunction is commonly found and is positively correlated with the severity of cognitive defects in AD patients. Our previous study demonstrated that Hhcy induces memory deficits with AD-like tau and amyloid-β (Aβ) pathologies in the hippocampus, and supplementation with folate and vitamin B12 (FB) prevents the Hhcy-induced AD-like pathologies in the hippocampus. Here, we investigated whether Hhcy also induces AD-like pathologies in the retina and the effects of FB. An Hhcy rat model was produced by vena caudalis injection of homocysteine for 14 days, and the effects of FB were assessed by simultaneous supplementation with FB in drinking water. We found that Hhcy induced vessel damage with Aβ and tau pathologies in the retina, while simultaneous supplementation with FB remarkably attenuated the Hhcy-induced tau hyperphosphorylation at multiple AD-related sites and Aβ accumulation in the retina. The mechanisms involved downregulation of amyloid precursor protein (APP), presenilin-1, beta-site APP-cleaving enzyme 1, and protein phosphatase-2A. Our data suggest that the retina may serve as a window for evaluating the effects of FB on hyperhomocysteinemia-induced Alzheimer-like pathologies.
Alzheimer Disease ; etiology ; metabolism ; pathology ; therapy ; Amyloid beta-Peptides ; metabolism ; Animals ; Dietary Supplements ; Disease Models, Animal ; Folic Acid ; therapeutic use ; Homocysteine ; Hyperhomocysteinemia ; complications ; metabolism ; pathology ; therapy ; Male ; Rats, Sprague-Dawley ; Retina ; metabolism ; pathology ; Retinal Vessels ; metabolism ; pathology ; Vitamin B 12 ; therapeutic use ; tau Proteins ; metabolism