PMID: 2485198Oct 1, 1989Paper

Connective tissue of the livers of newborn and adult marmosets (Callithrix jacchus)

Histology and Histopathology
D XuH J Merker

Abstract

Immunofluorescence microscopic and electron microscopic investigations revealed components of the matrix and of the basal lamina (collagen type I, III, IV and V, BL-heparan sulfate and fibronectin) in the sinus wall (Disse's space) of the livers of newborn and adult marmosets (Callithrix jacchus). Collagen type I was missing in both the two age groups. Small amounts of laminin were present in the livers of newborn and absent in those of adult animals, whereas collagen type III occurred in the form of delicate fibres. Light microscopic inspection showed a continuous distribution of all other components in the sinus wall. The amount of collagen type III and V increased depending on the age. Electron microscopic investigations revealed single or bundled fibrils (20-30 nm) and filaments (10-12 nm). After addition of tannic acid, plaques of a fine-filamentous network and incorporated granules were observed. After addition of resting Ruthenium Red, electron-dense granules (20-60 nm) were irregularly distributed in the structureless space, resting on collagenous fibrils and cell membranes. The fibrils were allocated to collagen type III, the filaments to collagen type V. The plaques were supposed to contain heparan sulfate, collagen t...Continue Reading

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