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Titolo:
REGENERATION OF TACTILE LAMELLAR CORPUSCLES OF THE RAT AFTER POSTNATAL FREEZE INJURY
Autore:
JIRMANOVA I; DUBOVY P; ZELENA J;
Indirizzi:
ACAD SCI CZECH REPUBL,INST PHYSIOL,VIDENSKA 1083 CZ-14220 PRAGUE CZECH REPUBLIC FAC MED,DEPT ANAT BRNO CZECH REPUBLIC
Titolo Testata:
Anatomy and embryology
fascicolo: 4, volume: 195, anno: 1997,
pagine: 363 - 374
SICI:
0340-2061(1997)195:4<363:ROTLCO>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
MUSCLE-SPINDLE FORMATION; PERIPHERAL-NERVE; CHOLINESTERASE ACTIVITY; GRAFTS; ALLOGRAFTS; AXONS; SKIN;
Keywords:
DIGITAL CORPUSCLES; DEVELOPMENT; FREEZE INJURY; REGENERATION; INNERVATED SKIN; DENERVATED SKIN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
27
Recensione:
Indirizzi per estratti:
Citazione:
I. Jirmanova et al., "REGENERATION OF TACTILE LAMELLAR CORPUSCLES OF THE RAT AFTER POSTNATAL FREEZE INJURY", Anatomy and embryology, 195(4), 1997, pp. 363-374

Abstract

Tactile lamellar corpuscles were studied after freeze injury of rat toe pads under normal conditions and following permanent denervation in1- to 65-day-old animals In the innervated skin, digital corpuscles redifferentiated in all age groups examined during development and maturation. Characteristic of the reinnervated skin was a great diversity in the shape and size of newly formed corpuscles. Small corpuscles with only 1-3 lamellae around their terminals and well-developed corpuscles of about normal size with up to 15 lamellae were sometimes found within the same sample of skin. The regenerated corpuscles were reduced in number; they reappeared in only 50% of dermal papillae in the toe pads after freeze injury in 7-week-old rats, compared with approximately 100% of dermal papillae that contained lamellar corpuscles in normaltoe-pad skin. In denervated toes, occasional corpuscular lamellar structures appeared first after freeze injury applied to 34-day-old rats. In the toe pads denervated and injured by freezing in 42- and 49-day-old rats, lamellar structures redifferentiated in 10% of the papillae,and in 23.5% after freeze in about jury applied to 3-month-old rats. Unsatisfactory preservation of basal laminae at the former sites of the corpuscles and in the acellular peripheral nerve stumps, and/or insufficient migration of Schwann cells, may be responsible for the absence or abortive regeneration of lamellar structures in denervated skin of food pads after freeze injury in young rats.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/12/20 alle ore 06:51:22