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    Morphologic study of left ventricular bands
    (Springer-Verlag, 2004) Deniz, M; Kilinç, M; Hatipoglu, ES
    The presence of left ventricular bands has drawn attention to their possible clinical importance, though there are no concrete data to support their role in serious clinical diseases. We have investigated the incidence, location, microscopic and macroscopic structure of left ventricular bands in the human and animals. We examined 100 hearts: 28 human and 72 animal (dog, goat, sheep). Left ventricular bands were present in 13 of 28 (46%) human hearts and 62 of 72 (86%) animal hearts. The bands usually extended from the interventricular septum to the free walls in human hearts and from the papillary muscles to the interventricular septum in animal hearts. They were composed of muscle tissue in various proportions in human and dog hearts, and of connective and conductive tissue in sheep and goat hearts.
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    Morphological alterations in small intestine of rats with myenteric plexus denervation
    (Karger, 2004) Deniz, M; Kilinç, M; Hatipoglu, ES
    We aimed to investigate the effect of myenteric denervation by benzalkonium chloride (BAC) on small intestine morphology in the rat, and whether segmental myenteric denervation alters morphology elsewhere in the small intestine. Forty male Sprague-Dawley rats were equally divided into 4 groups: control (0.9% NaCl); denervation (0.062% BAC); chemical inflammation (5% acetic acid), and intraluminal stasis produced by partial obstruction. 28 days after operation tissue samples were taken from the treated segment, 10 cm distal to the treated segment, and 20 cm proximal to the treated segment. Morphological changes and the number of ganglion cells were examined under the light microscope. BAC application reduced the number of myenteric neurons by 85% in the treated segment. Denervation increased villus height and crypt depth in the treated and proximal segments. But changes in muscle thickness were seen throughout the intestine. As a result, although myenteric plexus denervation caused mucosa morphology in the treated and proximal segments, it caused smooth muscle changes throughout the small intestine. Copyright (C) 2004 S. Karger AG, Basel.