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  • Articles  (4)
  • Cell & Developmental Biology  (2)
  • Malignant hypertension  (2)
  • 1
    ISSN: 1432-2307
    Keywords: Stroke-prone spontaneously hypertensive rats ; Arteriolar fibrinoid necrosis ; Smooth muscle cell proliferation ; Malignant hypertension
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A light-microscopic study of various organs of stroke-prone spontaneously hypertensive (SHRSP) rats was performed. The rats characteristically developed fibrinoid necrosis of the wall and marked cellular thickening of the intima and media of the arterioles and small arteries of the kidney, testicle, mesentery, adrenal gland, brain, etc. Parenchymal damage of the organs, secondary to the vascular alterations took place. There were no accumulations of lipids in the vascular lesions. Though stroke has been stressed as a characteristic clinical feature of the SHRSP rats, the cerebral lesions are different from those seen in ordinary cerebrovascular disease. Furthermore, many organs are involved. The overall vascular changes in the brain and other organs are consistent with those seen in malignant hypertension; the SHRSP rat is an excellent model of this disease.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1459
    Keywords: Malignant hypertension ; CSF lactate ; CSF protein ; Intracranial pressure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei 21 Patienten mit maligner Hypertonie, 19 mit benigner Hypertonie und 21 mit normalem Blutdruck wurden in Blut und Liquor die Lactat- und Pyruvatkonzentrationen sowie die Säure-Basen-Parameter gemessen. Die Werte für das Lactat bzw. für das Lactat-Pyruvat-Verhältnis im Liquor waren bei Patienten mit maligner Hypertonie signifikant höher (1,90±0,10 mM/1, 19,2±1,0) als bei den Patienten mit benigner Hypertonie (1,50±0,05 mM/1, 15,7±0,7) bzw. bei normotensiven Individuen (1,44±0,04 mM/1, 15,7±0,4). Es bestand eine lineare Korrelation zwischen den Lactatwerten und dem Druck im Liquor (r=0,565, P〈0,01), wobei dies außerdem korrelierte mit einem mittleren arteriellen Blutdruck von mehr als 150 mm Hg (r=0,553, P〈0,01). Diese Zunahme in den Säuremetaboliten im Liquor weist darauf hin, daß der Hirnstoffwechsel bei maligner Hypertonie in eine anaerobe Phase tritt, wahrscheinlich wegen des erhöhten intrakraniellen Druckes. Es wird auch die Möglichkeit einer erhöhten cerebralen Gefäßdurchlässigkeit als mitbeteiligter Mechanismus erwogen.
    Notes: Summary Lactate and pyruvate concentrations and acid-base parameters in cerebrospinal fluid (CSF) and arterial blood were measured in 21 patients with malignant hypertension (MHT), 19 with benign hypertension (BHT) and 21 normotensive subjects (NT). Average values for CSF lactate and lactate/pyruvate (L/P) ratio were significantly higher in MHT (1.90±10mM/1, 19.2±1.0) than in either BHT (1.50±0.05 mM/1, 15.7±0.7) or NT (1.44±0.04 mM/1, 15.7±0.4). There was a linear correlation between CSF lactate and CSF pressure (r=0.565, P〈0.01), and the latter was also related to mean arterial pressure exceeding 150 mm Hg (r=0.553, P〈0.01). Such increases in the acid metabolites in CSF indicate that brain metabolism becomes anaerobic in MHT, probably due to increased intracranial prssure. Increased cerebrovascular permeability is also discussed as participating in causal mechanisms.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    The @Anatomical Record 56 (1933), S. 229-240 
    ISSN: 0003-276X
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    The @Anatomical Record 56 (1933), S. 219-228 
    ISSN: 0003-276X
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine
    Additional Material: 6 Tab.
    Type of Medium: Electronic Resource
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