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Age-related changes of the noradrenergic and acetylcholinesterase reactive nerve fibres innervating the pigeon bursa of Fabricius.
Age-related changes of the noradrenergic and acetylcholinesterase reactive nerve fibres innervating the pigeon bursa of Fabricius.
- Source :
-
Annals of anatomy = Anatomischer Anzeiger : official organ of the Anatomische Gesellschaft [Ann Anat] 1995 May; Vol. 177 (3), pp. 237-42. - Publication Year :
- 1995
-
Abstract
- Age-dependent changes in the innervation of the pigeon (Columba livia, L.) bursa of Fabricius, from hatching to 120 days of age, were studied by fluorescence-histochemical and neurochemical methods for demonstrating noradrenergic and acetylcholinesterase (AChE)-reactive nerve fibres respectively. The distribution of both nerve fibre types was largely perivascular. Furthermore, a few isolated nerve fiber profiles were observed beneath the bursal epithelium, in the interfollicular septa and in the follicular cortex. No nerve fibre profiles reaching the medulla of the lymphoid follicles were observed. In addition to nerve fibres, AChE reactive neuron-like cells were encountered within the capsule and interfollicular septa. AChE reactivity was also found in dendritic-like cells localized in the cortical and cortico-medullary border. No changes in the density of perivascular noradrenergic innervation were noticeable during the ages studied, whereas the density of AChE-reactive fibres supplying vessels reached the adult pattern at 30 days, and then remained unvaried. The density of non-perivascular nerve fiber profiles, specially the AChE reactive type, increased until 30 days, remained unchanged until 75 days and then increased with aging (90-120 days). The interrelationship between the autonomic nervous system and the immune system is discussed.
- Subjects :
- Animals
Bursa of Fabricius growth & development
Glyoxylates
Male
Microscopy, Fluorescence
Nerve Fibers ultrastructure
Neurons cytology
Neurons physiology
Acetylcholinesterase analysis
Aging physiology
Bursa of Fabricius innervation
Columbidae physiology
Nerve Fibers physiology
Norepinephrine analysis
Subjects
Details
- Language :
- English
- ISSN :
- 0940-9602
- Volume :
- 177
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Annals of anatomy = Anatomischer Anzeiger : official organ of the Anatomische Gesellschaft
- Publication Type :
- Academic Journal
- Accession number :
- 7598221
- Full Text :
- https://doi.org/10.1016/S0940-9602(11)80194-9