Pulmonary Connective Tissue Modifications Induced by Internal α Irradiation: I. Effect of Time and Dose on Alterations Following Inhalation of Plutonium-239 Dioxide Aerosol in Rat

1978 ◽  
Vol 75 (2) ◽  
pp. 385 ◽  
Author(s):  
H. Metivier ◽  
R. Masse ◽  
N. Legendre ◽  
J. Lafuma
Keyword(s):  
Connective Tissue ◽  
Pulmonary Connective Tissue

Electron microscopic observations on pulmonary connective tissue stained by Ruthenium Red

1982 ◽  
Vol 14 (2) ◽  
pp. 257-271 ◽  
Author(s):  
Kimihiko Takusagawa ◽  
Fumio Ariji ◽  
Kuniji Shida ◽  
Toshio Sato ◽  
Noboru Asoo ◽  
...  
Keyword(s):  
Connective Tissue ◽  
Ruthenium Red ◽  
Electron Microscopic ◽  
Pulmonary Connective Tissue

Modification of the Pulmonary Connective Tissue Developmental Response in the Neonatal Rat by Ciclosporin

1991 ◽  
Vol 16 (2) ◽  
pp. 89-98 ◽  
Author(s):  
Philip J. Roos ◽  
Coenraad M. van Gent ◽  
James C. Mauch ◽  
James W. Blankenship ◽  
Leonard L. Bailey ◽  
...  
Keyword(s):  
Connective Tissue ◽  
Neonatal Rat ◽  
Pulmonary Connective Tissue

scholarly journals Rare Pulmonary Connective Tissue Type Mast Cells Regulate Lung Endothelial Cell Angiogenesis

2020 ◽  
Vol 190 (8) ◽  
pp. 1763-1773
Author(s):  
Yue Ren ◽  
Yuyan Lyu ◽  
Jared A. Mereness ◽  
Shumin Wang ◽  
Jinjiang Pang ◽  
...  
Keyword(s):  
Endothelial Cell ◽  
Mast Cells ◽  
Connective Tissue ◽  
Tissue Type ◽  
Pulmonary Connective Tissue

scholarly journals Morphological features of histogenic differon cells in connective tissue of guinea pigs’ lungs after sensitization with ovalbumin

2021 ◽  
Vol 14 (2) ◽  
pp. 220-225
Author(s):  
S. S. Popko ◽  
V. M. Yevtushenko
Keyword(s):  
Connective Tissue ◽  
Guinea Pigs ◽  
Morphological Changes ◽  
Early Period ◽  
Allergic Inflammation ◽  
Morphological Features ◽  
Control Group ◽  
Group A ◽  
Experimental Sensitization ◽  
Pulmonary Connective Tissue

An urgent issue of modern morphology is establishing a number of patterns of morphological changes and reactivity of connective tissue components of lungs in case of experimental sensitization with allergens. The aim is to estimate morphological features of histogenic differon cells in connective tissue of guinea pigs’ lungs after sensitization with ovalbumin. Materials and methods. Using morphometric and histological method, we have estimated the lung connective tissue of 48 male guinea pigs with experimental ovalbumin-induced allergic inflammation, simulated by subcutaneous sensitization and aeroallergization with ovalbumin. The number of fibrocytes, fibroblasts per 5000 μm2 and their ratio – fibroblast/fibrocyte coefficient were determined. Results. We have established the regularity of morphological changes dynamics in the cellular elements of pulmonary connective tissue. Experimental sensitization and inhalated allergization with ovalbumin leads to a statistically significant increase in the average number of fibroblasts and fibrocytes throughout the observation period in all experimental groups. It has been proved that the dynamics of cells has a multidirectional character, demonstrated by indicators of the fibroblast/fibrocyte coefficient, which shows the disproportion in the fibroblast/fibrocyte ratio and proves the tendency to the development of fibrosis in guinea pigs’ pulmonary connective tissue in case of experimental sensitization with ovalbumin. Conclusions. A gradual increase in the number of fibrocytes, against the background of a decrease in the number of fibroblasts is observed from the 23rd day to the completion of experimental sensitization with ovalbumin in the lungs of guinea pigs, compared with control group. A decrease of fibroblast/fibrocyte coefficient from 1.37 ± 0.03 in the early period to 0.82 ± 0.03 in the late period of the allergic inflammation demonstrates multidirectional nature of the dynamics in the number of connective tissue cells and indicates a tendency towards the development of fibrosis in pulmonary connective tissue.

Pulmonary Connective Tissue and Environmental Lung Disease

CHEST Journal ◽  
1981 ◽  
Vol 80 (1) ◽  
pp. 33S-38S ◽  
Author(s):  
Ronald G. Crystal ◽  
Stephen I. Rennard
Keyword(s):  
Connective Tissue ◽  
Lung Disease ◽  
Pulmonary Connective Tissue

Induction and Differentiation of Dental Epithelium in Vivo and in Vitro

1982 ◽  
Vol 40 ◽  
pp. 142-145
Author(s):  
E. J. Kollar
Keyword(s):  
Connective Tissue ◽  
Oral Mucosa ◽  
Basal Lamina ◽  
Functional Derivatives ◽  
Specific Source ◽  
Dental Epithelium ◽  
Connective Tissue Stroma

The differentiation and maintenance of many specialized epithelial structures are dependent on the underlying connective tissue stroma and on an intact basal lamina. These requirements are especially stringent in the development and maintenance of the skin and oral mucosa. The keratinization patterns of thin or thick cornified layers as well as the appearance of specialized functional derivatives such as hair and teeth can be correlated with the specific source of stroma which supports these differentiated expressions.

Ultrastructure of Liver in Lactosyl Ceramidosis

1971 ◽  
Vol 29 ◽  
pp. 312-313
Author(s):  
Z. Hruban ◽  
J. R. Esterly ◽  
G. Dawson ◽  
A. O. Stein
Keyword(s):  
Connective Tissue ◽  
Liver Biopsy ◽  
Osmium Tetroxide ◽  
Close Contact ◽  
Multivesicular Bodies ◽  
Bile Canaliculi ◽  
Dense Bodies ◽  
Marginal Plates ◽  
Membranous Material ◽  
Perichromatin Granules

Samples of a surgical liver biopsy from a patient with lactosyl ceramidosis were fixed in paraformaldehyde and postfixed in osmium tetroxide. Hepatocytes (Figs. 1, 2) contained 0.4 to 2.1 μ inclusions (LCI) limited by a single membrane containing lucid matrix and short segments of curved, lamellated and circular membranous material (Fig. 3). Numerous LCI in large connective tissue cells were up to 11 μ in diameter (Fig. 2). Heterogeneous dense bodies (“lysosomes”) were few and irregularly distributed. Rough cisternae were dilated and contained smooth vesicles and surface invaginations. Close contact with mitochondria was rare. Stacks were small and rare. Vesicular rough reticulum and glycogen rosettes were abundant. Smooth vesicular reticulum was moderately abundant. Mitochondria were round with few cristae and rare matrical granules. Golgi complex was seen rarely (Fig. 1). Microbodies with marginal plates were usual. Multivesicular bodies were very rare. Neutral lipid was rare. Nucleoli were small and perichromatin granules were large. Small bile canaliculi had few microvilli (Fig. 1).

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