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1.
Article in Chinese | WPRIM | ID: wpr-668493

ABSTRACT

Objective To design and manufacture a multifunctional cushion for venous thrombosis prevention of lower extremities, which can be also applied to the low extremities needing raising. Methods The cushion was made of anti-rust, low-weight, undeformable and easy-to-clean stainless material, which was composed of a pad and a massage apparatus. The pad had its height regulable from 16 to 30 cm and telescopic inclination from 30 to 70° to adapt the cushion to sizes of patients. There were 6 independent air chambers and tubular circulating pipes around the blanket wrapping the chambers so that extremity massage and temperature-controlled heating could be executed based on setting up pressure, time and temperature of the electromagnetic air and water pumps. Results The cushion simulated the functions of the muscle pump, which formed step-by-step-increasing pressure changes by driving the chambers to be inflated and discharged continuously to execute extremity massage, temperature-controlled heating etc. Conclusion The cushion gains advantages in flexible composition, patient comfort etc, solves the problems in fixing angle and height, constant time for pump inflation and discharge as well as temperature-controlled heating, and thus is worthy promoting clinically.

2.
Acta Pharmaceutica Sinica ; (12): 474-480, 2017.
Article in Chinese | WPRIM | ID: wpr-779617

ABSTRACT

In this study, the endocytosis pathway of heparosan and its intracellular distribution were investigated in MCF-7 tumor cells and COS7 normal cells. The endocytosis inhibition and cellular probe location experiments showed that MCF-7 tumor cells took heparosan more efficiently and selectively than COS7 cells. The cellular uptake of heparosan was energy-dependent in both MCF-7 tumor cells and COS7 normal cells. Moreover, the major endocytosis pathway of heparosan into MCF-7 tumor cells was caveolin-mediated endocytosis and macropinocytosis. The internalized heparosan was mainly located in lysosomes of the cells.

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