Improvement of preparative method of acellular nerve allograft and its effect on bridging of peripheral nerve defects;

Comparing the regeneration of sciatic nerve defects repaired after different predegeneration time in rats;

Background: The treatment of peripheral nerve injury is a tough problem clinically, in which two crucial problems should be solved: the repair of nerve defects and neurotropic reinnervation of the nerve fibers.

Objective To study the feasibility to repair the peripheral nerve gap with tissue engineering scaffold complex that is composed of medical biodegradable material agarose hydrogel and nerve growth factor (NGF).

Methods:The decellularized scaffolds prepared by using lyolecithin,DNase and RNase to treat the canine sciatic nerves were compounded with bone marrow derived neural tissue-committed stem cells via microinjection to creat the tissue engineered nerve,and thereby bridge the mouse sciatic nerve gap.

Effect on the expression of CGRP after different time-delayed repair sciatic nerve defect in rats;

Experimental study of bridging peripheral nerve defect with biodegradable PDLLA/NGF controlled release conduit;

Repairing ischiadicus nerve defect by slowly stretching the defective nerve with a tissue expander;

The Concept of business vacancy is ambiguous and should be replaced by the concept of monitoring vacancy in order to research on new ways of advancing the development of enterprise innovation.

Based on the investigation, it reaches the conclusion that the shortage of funds of compulsory education in the rural areas can t be solved under the managing system with " county as the center", under the economic conditions of a county run mainly by agriculture.

With the economicand social development, colleges and universities are facing unprecedented prob- lems, especially the shortage of funds.