안면신경 압박손상 후 Adenovirus 매개 BDNF 유전자 전달을 통한 신경손상 회복에 관한 연구

• 영문명: ADENOVIRAL VECTOR MEDIATED IN VIVO GENE TRANSFER OF BDNF PROMOTE FUNCTIONAL RECOVERY AFTER FACIAL NERVE CRUSH INJURY
• 발행기관: 대한구강악안면외과학회
• 저자명: 양병은(Byoung-Eun Yang) 이종호(Jong-Ho Lee)
• 간행물 정보: 『대한구강악안면외과학회지』대한구강악안면외과학회지 제32권 제4호, 308~316쪽, 전체 9쪽
• 주제분류: 의약학 > 내과학
• 파일형태: PDF
• 발행일자: 2006.08.30

영문 초록

Objectives Despite considerable advances in technique, experience and skill, the precise place of surgery in the treatment of facial nerve injury remains uncertain. We designed a facial nerve crush injury model in rats and evaluated the recovery of crushed nerve which is the most common injury type of facial nerve using adenovirus vector mediated in vivo gene transfer of Brain derived neurotrophic factor(BDNF). Materials and methods In 48 Sprague Dawley rats, we made a facial nerve crush injury model to main trunk before the furcation, and injected a 1011pfu adenoviral BDNF in experimental group(BDNF adenoviral injection group; ad-BDNF) and 3㎕ saline in control group(Saline injection group; saline). After a period of regeneration from 10 to 40 days, nerve regeneration was evaluated with functioinal test (vibrissae and ocular movement), electrophysiologic study(threshold, peak voltage, conduction velocity) and histomorphometric study of axon density. Results Vibrissae and ocular movement, threshold and conduction velocity improved as time elapse in both group, however axon density was increased significantly only in experimental group. Functional test in 10 days and 20 days showed no difference between experimental group and control group. Vibrissae movement, threshold, conduction velocity and axon density in 30 days revealed that the regeneration in quality of experimental group was significantly superior to that of control group. Conclusion In general, there is tendency for nerve regeneration in experimental group (BDNF-adenovirus injection group) during 40 days, functional recovery was detected successfully after facial nerve crush in 30 days postoperatively

키워드

Facial nerve regeneration BDNF Adenoviral gene transfection Crush injury