Intercellular relationships in the external glial limiting membrane of the neocortex of the cat and rat

1975 ◽  
Vol 144 (4) ◽  
pp. 421-431 ◽  
Author(s):  
Vick Williams
Keyword(s):  
Intercellular Relationships

Hairy cell leukemia: Kinetics and intercellular relationships of cells in leukemic colonies grown in a semisolid medium

1985 ◽  
Vol 3 (3) ◽  
pp. 156-168 ◽  
Author(s):  
Randall E. Merchant ◽  
Marie-Claude Moreillon ◽  
Stephan Arrenbrecht ◽  
Victor Hofmann
Keyword(s):  
Hairy Cell Leukemia ◽  
Hairy Cell ◽  
Cell Leukemia ◽  
Semisolid Medium ◽  
Intercellular Relationships

scholarly journals Cellular/intercellular interrelations in various parts of aorta after reconstructive treatment of aortic stenosis in infants

2017 ◽  
Vol 21 (2) ◽  
pp. 52 ◽  
Author(s):  
S. S. Todorov
Keyword(s):  
Aortic Stenosis ◽  
Conflict Of Interest ◽  
Aortic Coarctation ◽  
Ascending Aorta ◽  
Coagulation Necrosis ◽  
Elastic Fibers ◽  
Thin Walled ◽  
Medical University ◽  
Smooth Myocytes ◽  
Intercellular Relationships

<p><strong>Aim.</strong> The article focuses on the evaluation of cellular/intercellular relationships in various parts of the aorta after reconstructive treatment of aortic stenosis in infants.<br /><strong>Methods.</strong> Medical histories and protocols of autopsies of three newborns were studied after surgical treatment of aortic coarctation. The operations were performed in children at 8th, 10th and 15th day after birth. In two cases, resection of the aortic lumen narrowing, botulinum duct ligation and formation of a direct aortic anastomosis were performed. In one observation, a closed balloon dilatation of the aorta in the area of constriction was used. When performing autopsy, the size of the heart, the perimeter of the aorta at the surgical sites and various parts of the aorta were examined. The fragments of the wall of the aortic sections were cut out and fixed in 10% neutral formalin. Histologic sections were prepared in a conventional way followed by staining them with hematoxylin-eosin or picrofuxin by Van Gieson, while elastic fibers were stained with rezorcin-fuchsin by Hotchkiss and Periodic acid–Schiff (PAS) in order to detect mucopolysaccharides.<br /><strong>Results.</strong> Cellular/intercellular relationships in various parts of the aorta following aortic coarctation in infants have some morphological features. Morphometric examination of the heart and aorta showed a significant increase in the volume and mass of the heart compared with the normal values due to myocardial hypertrophy of the right and left ventricles of the heart. An uneven narrowing of the aortic lumens was most pronounced in the arch and isthmus as compared to the ascending and thoracic parts of aorta. Morphological examination of the aortic wall in the constriction zones demonstrated the presence of coagulation necrosis, lysis of elastic, collagen fibers with surrounding hyperplasia of smooth myocytes, newly formed thin-walled capillary vessels. Outside the coarctation zone, the most significant changes characterized by the development of hypoelastosis, non-uniform accumulation of acid mucopolysaccharides were observed in the walls of the arch and the ascending aorta. <br /><strong>Conclusion.</strong> In infants with coarctation of the aorta, dilatation of the ascending aorta with compensatory hypertrophy of the heart is observed, and a muscle-fibrous tissue, rich in smooth myocytes and newly formed thin-walled vessels, tends to develop in stenotic zones. The risk of restenosis development is believed to depend on the prevalence and severity of proliferative processes of the cellular elements of the aorta, which allows us to consider early surgical interventions to prevent irreversible destructive changes as justifiable.</p><p>Received 2 February 2017. Accepted 27 May 2017.</p><p><strong>Funding:</strong> The study required no additional funding and sponsorship.<br /><strong>Conflict of interest:</strong> The author declares no conflict of interest.<br /><strong>Acknowledgements</strong><br />The author expresses his gratitude towards Professor S.V. Shlyk, Dr. Sci. (Medicine), Rector of Rostov State Medical University, Professor N.I. Volkova, Dr. Sci. (Medicine), Pro-Rector for Research of Rostov State Medical University and the researchers of the Molecular/Biological &amp; Optical Research Methods Department.</p>

scholarly journals FEATURES OF AUTOROSETTE FORMATION IN PERIPHERAL BLOOD IN PATIENTS WITH HIV INFECTION

2012 ◽  
Vol 17 (2) ◽  
pp. 25-28
Author(s):  
L. N. Korichkina ◽  
T. S. Vinogradova ◽  
E. L. Tofilo
Keyword(s):  
Immune System ◽  
Antiretroviral Therapy ◽  
Hiv Infection ◽  
Peripheral Blood ◽  
Treatment Efficacy ◽  
Healthy Individuals ◽  
Intercellular Relationships

In 108 HIV-infected patients studied the phenomenon of endogenous autorosette formation in peripheral blood in the peripheral blood has been studied. The total number of autorosettes and autorosettes with exocytic lysis was established to be much greater than in healthy individuals. This, along with neutrophilic and monocytic autorosettes a large number of autorosettes formed by platelets has been observed. Under the influence of antiretroviral therapy the number of platelet autorosettes decreases, the number of neutrophils and monocyte-derived autorosettes rises, eosinophilic autorosettes appear. Such dynamics seems to reflect the features of intercellular relationships in the blood of patients with HIV infection/ that indicates significant disturbances in the immune system and can serve as an indicator of treatment efficacy.

scholarly journals CELL JUNCTIONS IN OMMATIDIA OF LIMULUS

1967 ◽  
Vol 33 (2) ◽  
pp. 365-383 ◽  
Author(s):  
Arnaldo Lasansky
Keyword(s):  
Structural Features ◽  
Cell Junctions ◽  
Retinular Cell ◽  
Visual Cells ◽  
Lateral Eye ◽  
Distal Process ◽  
Retinular Cells ◽  
Intercellular Relationships ◽  
Ommatidial Cells

The intercellular relationships in the ommatidia of the lateral eye of Limulus have been investigated. The distal process of the eccentric cell gives origin to microvilli which interdigitate with the microvilli of the retinular cells. Therefore, both types of visual cells contribute to form the rhabdom and may have an analogous photoreceptor function. Quintuple-layered junctions are found within the rhabdom at the lines of demarcation between adjoining microvilli, whether the microvilli originate from a single retinular cell, from two adjacent retinular cells, or from a retinular cell and the eccentric cell. Furthermore, quintuple-layered junctions between the eccentric cell and the tips of the microvilli of the retinular cells occur at the boundary between the distal process and the rhabdom. These findings are interpreted to indicate that the rhabdom provides an extensive electrotonic junction relating retinular cells to one another and to the eccentric cell. Quintuple-layered junctions between glial and visual cells, as well as other structural features of the ommatidial cells, are also described.

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