摘要:

This study was undertaken to determine where most of the uterine collagen is degraded during the postpartum involution. The greater part of uterine collagen, which was estimated as hydroxyproline, had disappeared by day 2 post partum. Colchicine, which decreases phagocytic activity, did not affect the uterine collagen degradation. Phagocytic activity in the post partum uterus did not appear until day 3 post partum. These results suggest that most of the uterine collagen is degraded by the extracellular but not by the intracellular pathway.

ISSN:1422-6405    

DOI:10.1159/000145795

出版商:S. Karger AG    

年代:1983

数据来源: Karger

摘要:

We examined the number and distribution of ganglion cells within a vallate papilla from a healthy human adult. The vast majority of cell bodies were located near the base of the papilla, clustered in the central portion of its core immediately above underlying muscles and von Ebner’s glands. Neurons appeared to be of one morphological type with ovoid cell bodies and spherical nuclei. The possible functional significance of their presence in invaginated or trench-containing gustatory papillae is discusse

ISSN:1422-6405    

DOI:10.1159/000145796

出版商:S. Karger AG    

年代:1983

数据来源: Karger

摘要:

Cells isolated from the fixed human aorta by alkaline dissociation have been studied. Cellular content of normal and atherosclerotic intima is described. Special attention is given to stellate cells that were found in large quantities in all analyzed samples. It is found that in the fatty streak stellate cells are localized nearest to the endothelium but they have no definite localization in the fibrous plaque. In unaffected intima, stellate cells are diffusely localized, and often prevail over other cell types.

ISSN:1422-6405    

DOI:10.1159/000145797

出版商:S. Karger AG    

年代:1983

数据来源: Karger

摘要:

Cells in pig colostrum, milk and involution secretion were identified using light and electron microscopy. Cell types identified were neutrophils, macrophages, epithelial cells, eosinophils and lymphocytes. The neutrophils predominated in colostrum and involution secretion, whereas in milk it was the epithelial cell. Macrophages and lymphocytes were present throughout lactation and so too were eosinophils which were always present in lower concentrations. Both neutrophils and macrophages were seen with phagocytic vacuoles containing either lipid, casein or cellular debris. The possible roles played by the phagocytic and lymphoid cells in the protection of the mammary gland of the sow and the gut of the neonate from pathogenic microorganisms is discussed.

ISSN:1422-6405    

DOI:10.1159/000145798

出版商:S. Karger AG    

年代:1983

数据来源: Karger

摘要:

In order to investigate if castration cells or hypertrophic gonadotrophs are induced by ovariectomy at birth, neonatal female rats were ovariectomized within 12 h after birth and the pituitary cells were examined when the rats were 15 days of age by means of immunocytochemistry and electron microscopy. Hypertrophic gonadotrophs were present in the anterior pituitary glands of these young rats. However, when estradiol was injected on alternate days, beginning on the 5th day after birth, this castration response in the pituitary was markedly suppressed. This morphological evidence confirms physiological results previously reported that a feedback interaction between the ovary and the hypothalamo-adenohypophysial system is functional in the early days of life.

ISSN:1422-6405    

DOI:10.1159/000145799

出版商:S. Karger AG    

年代:1983

数据来源: Karger