geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Mapping of bovine pericardium: physical and histopathologic tests


, : Mapping of bovine pericardium: physical and histopathologic tests. Journal of Heart Valve Disease 7(2): 202-206

This study was performed to identify the physical and histopathologic characteristics of different sections of glutaraldehyde-tanned bovine pericardium. Ten pericardial sacs were obtained from animals aged from 18 to 36 months. Physical tests included shrinkage and mechanical resistance (rupture, elongation, tenacity index). Collagen and elastic fibers were evaluated in Gomori's trichrome-stained sections, hematoxylin and eosin, by PAS and Verhoeff's method. Studied areas were proximal to the great arteries, and the right atrial, right ventricular, left ventricular and left atrial regions. Results showed that bovine pericardium does not have enough regional differences to identify any single region for bioprosthesis manufacture. However, histopathology showed better preservation of collagen and elastic fibers in the right ventricular region, implying that this area is more adequate as bioprosthetic material.

US$29.90

PMID: 9587862


Other references

Jarzabek, Z., 1981: Genetic characteristics of poliomyelitis virus strains isolated in Poland during the years 1978-1979, the period of continuous vaccination with polyvalent vaccines. Przeglad Epidemiologiczny 35(2): 221-224

Monget, P.; Monniaux, D.; Pisselet, C.; Durand, P., 1993: Changes in insulin-like growth factor-I (IGF-I), IGF-II, and their binding proteins during growth and atresia of ovine ovarian follicles. Ovarian follicles of Ile-de-France ewes were dissected and measured individually, and follicular fluid was collected. They were classified according to size and degree of atresia, assessed on the basis of microscopic examination of smears of granu...

Altendorf, K.; Booth, I.R.; Gralla, J.; Greie, Jörg-Christian.; Rosenthal, A.Z.; Wood, J.M., 2009: Osmotic Stress. Escherichia coli and Salmonella encounter osmotic pressure variations in natural environments that include host tissues, food, soil, and water. Osmotic stress causes water to flow into or out of cells, changing their structure, physics, and chemis...

Ozoh, O.B.; Awokola, T.; Buist, S.A., 2014: Medical students' knowledge about the management of chronic obstructive pulmonary disease in Nigeria. College of Medicine, University of Lagos, Nigeria. To determine the level of knowledge of medical students regarding the management of chronic obstructive pulmonary disease (COPD). Descriptive cross-sectional survey using a structured questionnair...

Alshamlan, H.; Badr, G.; Alohali, Y., 2016: mRMR-ABC: A Hybrid Gene Selection Algorithm for Cancer Classification Using Microarray Gene Expression Profiling. An artificial bee colony (ABC) is a relatively recent swarm intelligence optimization approach. In this paper, we propose the first attempt at applying ABC algorithm in analyzing a microarray gene expression profile. In addition, we propose an inn...

Romero Arroyo, C.E.; James, S.R.; Farmer, M.; Krause, D.C., 1997: Does loss of the putative cytadherence protein P30 confer a developmental defect in Mycoplasma pneumoniae?. Abstracts of the General Meeting of the American Society for Microbiology 97(0): 282-283

Purdie, E.L.; Metcalf, J.S.; Kashmiri, S.; Codd, G.A., 2010: Toxicity of the cyanobacterial neurotoxin beta-N-methylamino-L-alanine to three aquatic animal species. Beta-N-methylamino-L-alanine (BMAA), a neurotoxin and candidate contributory cause of neurodegenerative diseases including amyotrophic lateral sclerosis, is produced by aquatic and terrestrial cyanobacteria. We have determined BMAA toxicity to thr...

Ellis B.R.; Marth E.H., 1984: Growth of pseudomonas or flavobacterium in milk reduced yield of cheddar cheese. Cheddar cheese was manufactured from milk which was artificially contaminated with proteolytic species of Pseudomonas or Flavobacterium and stored at 7.degree. C. Cheese was analyzed for moisture content and yield was determined on a dry matter ba...

Rosé, C.; Dose, J.; Avril, N., 2002: Positron emission tomography for the diagnosis of breast cancer. This article reviews the literature on breast imaging with (18F)fluorodeoxyglucose positron emission tomography (FDG PET). In clinical applications, there is currently no defined role for detecting primary breast cancer. The limited sensitivity of...

Yao, L.; Zheng, M.; Li, C.; Ma, L.; Shen, W., 2012: Facile synthesis of superhydrophobic surface of ZnO nanoflakes: chemical coating and UV-induced wettability conversion. This work reports an oriented growth process of two-dimensional (2D) ZnO nanoflakes on aluminum substrate through a low temperature hydrothermal technique and proposes the preliminary growth mechanism. A bionic superhydrophobic surface with excel...