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M. Saad Mansoura University Department of Pharmacology, Faculty of Medicine Mansoura Egypt

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Amr Abbas

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V. Boshra Mansoura University Department of Pharmacology, Faculty of Medicine Mansoura Egypt

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M. Elkhateeb Mansoura University Department of Neurology, Faculty of Medicine Mansoura Egypt

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I. Aal Mansoura University Department of Clinical Pathology, Faculty of Medicine Mansoura Egypt

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This work aims at studying the possible alteration of renal renin secretion after human ischemic stroke and correlating it to the post stroke neurological and renal function alterations using angiotensin II type 1(AT1) receptor blocker (ARB), candesartan, and β1 adrenoreceptor blocker atenolol, which inhibits renin secretion, in Wistar rats subjected to middle cerebral artery occlusion. Methods . This study comprised 21 patients with cerebral ischemic stroke. Seventeen normal persons were used for comparison. Recumbent and standing plasma renin activity (PRA), reflex plasma renin sensitivity, plasminogen activator inhibitor and creatinine clearance (Ccr) were estimated at admission and two weeks later. Moreover, 60 male Wistar rats were divided into two groups SHAM and ischemic. Each of the two groups was further subdivided into three subgroups, non-treated, atenolol treated, and candesartan treated. In all rats, mean arterial blood pressure (MAP), systolic blood pressure (SBP), diastolic blood pressure (DBP), pulse pressure (PP), heart rate (HR), neurobehavioral evaluation, Ccr, PRA, and infarct size were measured. Results . Together with the significant deterioration of the neurological score, focal cerebral ischemia in rats resulted in increased PRA and decreased glomerular filtration rate (GFR). In ischemic stroke patients, GFR was significantly decreased at admission and two weeks later, PRA increased at admission and two weeks later while plasma renin reflex secretion sensitivity had decreased significantly at admission relative to controls, but it increased significantly 2 weeks later. Atenolol caused significant improvement of the neurobehavioral score and renal function and decrease infarct size of rats subjected to focal cerebral ischemia whereas candesartan caused significant improvement of the neurobehavioral score and decreased infarct size with no significant change in GFR. Neither atenolol nor candesartan caused significant change in MAP, SBP, DBP, PP and HR Conclusion . (1) Ischemic stroke seems to be associated with a postischemic increase of the plasma renin secretion, which may increase the infarct size in the brain and may induce acute renal insufficiency. (2) This study confirms that Atenolol and ARBs could benefit ischemic stroke patients without altering blood pressure.

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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)
    1. G. Navar (New Orleans)
    1. H. Nishino (Nagoya)
    1. O. Petersen (Liverpool)
    1. U. Pohl (Münich)
    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
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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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