Authors:
F. Burdan Experimental Teratology Unit of the Human Anatomy Department, Medical University of Lublin Poland

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Justyna Szumiło Clinical Pathomorphology Department, Medical University of Lublin Poland

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Agnieszka Korobowicz Experimental Teratology Unit of the Human Anatomy Department 8 Jaczewskiego Str, PL-20950 Lublin, Poland

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J. Dudka Toxicology Department, Medical University of Lublin Poland

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Elżbieta Korobowicz Clinical Pathomorphology Department, Medical University of Lublin Poland

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G. Wallner Second General Surgery Department, Medical University of Lublin Poland

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R. Maciejewski Human Anatomy Department, Medical University of Lublin PL-20074 Lublin, 1 Spokojna Str., Poland

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Cathepsin D (EC 3.4.23.5) is a lysosomal endopeptidase physiologically present at very low concentration in different tissues. The aim of the study was to estimate the physiological activity and distribution of cathepsin D in the liver. Four groups of ten-week-old male Wistar rats were raised without xenobiotics and sacrificed on day 4, 42, 47 and 84 of the experiment, and their livers were taken for immunohistochemical and biochemical investigation. Immunostaining for cathepsin D was evaluated by light microscope. Activity of the free and bound fractions of hepatic cathepsin D was measured spectrophotometrically. Immunohistochemical staining for cathepsin D was positive in Browicz-Kupffer cells in some but not in all rat liver specimens of each experimental group. The staining pattern was cytoplasmic and granular. Occasionally the positive stained endothelial cells were also found. No activity of cathepsin D in hepatocytes was detected. The positive immunostaining was found in livers with high enzyme activity in the biochemical investigation. No significant differences in activity of the free and bound fractions of cathepsin D among the different age groups were noted. However, the higher, age-dependent activity (p≯0.05) of the free fraction was observed in the youngest and the two-middle groups of rats that were sacrificed on day 42 and 47 than in the oldest one. The bound fraction did not reveal such changes. It could be concluded that there were no differences in the activity of hepatic free and bound fractions of cathepsin D in male Wistar rats of various reproductive age. The rat Browicz-Kupffer cells revealed the highest activity of cathepsin D.

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Senior editors

Editor(s)-in-Chief: Rosivall, László

Honorary Editor(s)-in-Chief): Monos, Emil

Managing Editor(s): Bartha, Jenő; Berhidi, Anna

Co-editor(s): Koller, Ákos; Lénárd, László; Szénási, Gábor

Assistant Editor(s): G. Dörnyei (Budapest), Zs. Miklós (Budapest), Gy. Nádasy (Budapest)

Hungarian Editorial Board

    1. Benedek, György (Szeged)
    1. Benyó, Zoltán (Budapest)
    1. Boros, Mihály (Szeged)
    1. Chernoch, László (Debrecen)
    1. Détári, László (Budapest)
    1. Hamar, János (Budapest)
    1. Hantos, Zoltán (Szeged)
    1. Hunyady, László (Budapest)
    1. Imre, Sándor (Debrecen)
    1. Jancsó, Gábor (Szeged)
    1. Karádi, Zoltán (Pécs)
    1. Kovács, László (Debrecen)
    1. Palkovits, Miklós (Budapest)
    1. Papp, Gyula (Szeged)
    1. Pavlik, Gábor (Budapest)
    1. Spät, András (Budapest)
    1. Szabó, Gyula (Szeged)
    1. Szelényi, Zoltán (Pécs)
    1. Szolcsányi, János (Pécs)
    1. Szollár, Lajos (Budapest)
    1. Szücs, Géza (Debrecen)
    1. Telegdy, Gyula (Szeged)
    1. Toldi, József (Szeged)
    1. Tósaki, Árpád (Debrecen)

International Editorial Board

    1. R. Bauer (Jena)
    1. W. Benjelloun (Rabat)
    1. A. W. Cowley Jr. (Milwaukee)
    1. D. Djuric (Belgrade)
    1. C. Fry (London)
    1. S. Greenwald (London)
    1. O. Hänninen (Kuopio)
    1. H. G. Hinghofer-Szalkay (Graz)
    1. Th. Kenner (Graz)
    1. Gy. Kunos (Richmond)
    1. M. Mahmoudian (Tehran)
    1. T. Mano (Seki, Gifu)
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    1. R. S. Reneman (Maastricht)
    1. A. Romanovsky (Phoenix)
    1. G. M. Rubanyi (Richmond)
    1. T. Sakata (Oita)
    1. A. Siddiqui (Karachi)
    1. Cs. Szabo (Beverly)
    1. E. Vicaut (Paris)
    1. N. Westerhof (Amsterdam)
    1. L. F. Zhang (Xi'an)

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Editorial Correspondence:
Acta Physiologica Hungarica
Semmelweis University, Faculty of Medicine Institute of Pathophysiology
Nagyvárad tér 4, H-1089 Budapest, Hungary
Phone/Fax: +36-1-2100-100
E-mail: aph@semmelweis-univ.hu

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Acta Physiologica Hungarica
Language English
Size  
Year of
Foundation
1950
Publication
Programme
changed title
Volumes
per Year
 
Issues
per Year
 
Founder Magyar Tudományos Akadémia
Founder's
Address
H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0231-424X (Print)
ISSN 1588-2683 (Online)

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