The author estimates the effectiveness of morphological diagnostics of alcoholic cardiomyopathy taking into consideration the general patterns of the structural and functional organization of the heart with special reference to myocardial histo-hematic barrier (HHB) the components of which are characterized by specific structural and functional properties and close relationships between them. It was shown that the morphological changes in the histo-hematic barrier reflect the range of variability of its morphological components and may be used as the indicators of its integrity and stability in the case of disorder. The study has demonstrated that the structural and functional degradation as well as decay of myocardial components may occur under the influence of both an ultrastrong acute impact and latent chronic intoxication or the diseases accompanied by rapid or slow persisting disintegration of the structural organization of the organ. The author maintains that the maximally high informative value of the assessment of the morphological criteria for alcoholic cardiomyopathy can be achieved with the use of special immunohistochemical methods allowing the concrete components of the biological structures to be identified and giving the exact location of the cellular and tissue components in the affected regions. Such an approach permits to detect the developing pathological changes at the molecular level with a high degree of accuracy and visualize the structural reorganization, if any, of each component of the myocardial histo-hematic barrier responsible for the lesions associated with alcoholic cardiomyopathy.
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http://dx.doi.org/10.17116/sudmed20155834-8 | DOI Listing |
Neuromolecular Med
September 2019
Department of Physiology, Faculty of Basic Medical Sciences, College of Health Sciences, The Nile University of Nigeria, Plot 681 Cadastral Zone, C-00 Research and Institution Area, Jabi Airport Road Bypass, Abuja, FCT, Nigeria.
Emerging evidences indicate a critical role of the gut microbiota in etiopathogenesis of dementia, a debilitating multifactorial disorder characterized by progressive deterioration of cognition and behavior that interferes with the social and professional functions of the sufferer. Available data suggest that gut microbiota disorder that triggers development of dementia is characterized by substantial reduction in specific species belonging to the Firmicutes and Bacteroidetes phyla and presence of pathogenic species, predominantly, pro-inflammatory bacteria of the Proteobacteria phylum. These changes in gut microbiota microecology promote the production of toxic metabolites and pro-inflammatory cytokines, and reduction in beneficial substances such as short chain fatty acids and other anti-inflammatory factors, thereby, enhancing destruction of the gut epithelial barrier with concomitant activation of local and distant immune cells as well as dysregulation of enteric neurons and glia.
View Article and Find Full Text PDFSud Med Ekspert
August 2015
Department of Forensic Medicine and Law, I.P. Pavlov First Saint Petersburg State Medical University, Saint Petersburg, Russia, 195076.
Int J Nanomedicine
May 2016
Faculty of Medicine and Defence Health, National Defence University of Malaysia, Kuala Lumpur, Malaysia.
Neurodegenerative causes of blindness and deafness possess a major challenge in their clinical management as proper treatment guidelines have not yet been found. Brain-derived neurotrophic factor (BDNF) has been established as a promising therapy against neurodegenerative disorders including hearing and visual loss. Unfortunately, the blood-retinal barrier and blood-cochlear barrier, which have a comparable structure to the blood-brain barrier prevent molecules of larger sizes (such as BDNF) from exiting the circulation and reaching the targeted cells.
View Article and Find Full Text PDFIn experiments on rats, changes of the ultrastructure of myocardial histo-hematic barriers in the right atrium during short-term and prolonged heat stress were studied. Short-term heat exposure (40 degrees C, 30 and 60 min) increased the rectal temperature by 3.0-3.
View Article and Find Full Text PDFVopr Onkol
July 2002
City Office for Postmortem Examinations, St. Petersburg.
Close interaction between biosynthetic, proliferative and overall activities of nucleic acids in tumor epithelial cells, on the one hand, and histo-hematic barrier of peritumorous area, on the other, has been investigated. Nucleolar organizer regions in prostate cancer appeared very active and the interaction of histo-hematic barrier components much closer than in nodose hyperplasia. Fibroplastic and sclerotic alterations in stroma adjacent to tumor enhanced.
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