Universität zu Köln

Bendella, Habib, Rink, Svenja, Manthou, Marilena, Papamitsou, Theodora, Nakamura, Makoto, Angelov, Doychin N. and Sarikcioglu, Levent (2019). Effect of surgically guided axonal regrowth into a 3-way-conduit (isogeneic trifurcated aorta) on functional recovery after facial-nerve reconstruction: Experimental study in rats. Restor. Neurol. Neurosci., 37 (2). S. 181 - 197. AMSTERDAM: IOS PRESS. ISSN 1878-3627

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Abstract

Background: The post-paralytic syndrome after facial nerve reconstruction has been attributed to (i) malfunctioning axonal guidance at the fascicular (branches) level, (ii) collateral branching of the transected axons at the lesion site, and (iii) intensive intramuscular terminal sprouting of regenerating axons which causes poly-innervation of the neuromuscular junctions (NMJ). Objective: The first two reasons were approached by an innovative technique which should provide the re-growing axons optimal conditions to elongate and selectively re-innervate their original muscle groups. Methods: The transected facial nerve trunk was inserted into a 3-way-conduit (from isogeneic rat abdominal aorta) which should guide the re-growing facial axons to the three main branches of the facial nerve (zygomatic, buccal and marginal mandibular). The effect of this method was tested also on hypoglossal axons after hypoglossal-facial anastomosis (HFA). Coaptational (classic) FFA (facial-facial anastomosis) and HFA served as controls. Results: When compared to their coaptation (classic) alternatives, both types of 3-way-conduit operations (FFA and HFA) promoted a trend for reduction in the collateral axonal branching (the proportion of double- or triple-labelled perikarya after retrograde tracing was slightly reduced). In contrast, poly-innervation of NMJ in the levator labii superioris muscle was increased and vibrissal (whisking) function was worsened. Conclusions: The use of 3-way-conduit provides no advantages to classic coaptation. Should the latter be impossible (too large interstump defects requiring too long interpositional nerve grafts), this type of reconstruction may be applied. (230 words)

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Bendella, Habib UNSPECIFIED UNSPECIFIED UNSPECIFIED Rink, Svenja UNSPECIFIED UNSPECIFIED UNSPECIFIED Manthou, Marilena UNSPECIFIED UNSPECIFIED UNSPECIFIED Papamitsou, Theodora UNSPECIFIED UNSPECIFIED UNSPECIFIED Nakamura, Makoto UNSPECIFIED UNSPECIFIED UNSPECIFIED Angelov, Doychin N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sarikcioglu, Levent UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-139113
DOI:	10.3233/RNN-190899
Journal or Publication Title:	Restor. Neurol. Neurosci.
Volume:	37
Number:	2
Page Range:	S. 181 - 197
Date:	2019
Publisher:	IOS PRESS
Place of Publication:	AMSTERDAM
ISSN:	1878-3627
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language MOTOR END-PLATES; MANUAL STIMULATION; SCHWANN-CELLS; SCIATIC-NERVE; VIBRISSAL MOVEMENT; GROWTH-FACTOR; IN-VIVO; REINNERVATION; REGENERATION; MUSCLE Multiple languages Neurosciences Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/13911