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Beta-endorphin in experimental canine spinal ischemia

De Riu, Pier Luigi and Petruzzi, Valentino and Palmieri, Giovanni and Gentili, Carlo and Melis, Francesco and Caria, Marcello Alessandro and Azzena, Gian Battista and Casu, Anna Rita and Marras, Gabriella and Madeddu, Giuseppe (1989) Beta-endorphin in experimental canine spinal ischemia. Stroke, Vol. 20 (2), p. 253-258. eISSN 1524-4628. Article.

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Plasma and cerebrospinal fluid beta-endorphin concentrations were radioimmunologically assayed in dogs subjected to spinal cord ischemia induced by infrarenal aortic ligature and in control sham-operated dogs. Plasma beta-endorphin levels rose significantly following surgery in control dogs but were unaffected by spinal ischemia. On the other hand, a significant increase in cerebrospinal fluid beta-endorphin concentration occurred after spinal ischemia, while surgical stress had no significant effect. Thus, the origins of plasma and cerebrospinal fluid beta-endorphin may be different, with the former secreted from the hypophysis and the latter from nervous tissue. Observed changes in cerebrospinal fluid beta-endorphin concentration could be related to the ischemic lesion of nervous tissue while the changes in plasma levels may reflect general stressing factors such as the surgery in our experiments.

Item Type:Article
ID Code:189
Uncontrolled Keywords:Endorphins, spinal cord, dogs
Subjects:Area 07 - Scienze agrarie e veterinarie > VET/09 Clinica chirurgica veterinaria
Area 06 - Scienze mediche > MED/36 Diagnostica per immagini e radioterapia
Area 05 - Scienze biologiche > BIO/09 Fisiologia
Divisions:001 Università di Sassari > 03 Istituti > Clinica medica generale e terapia medica
001 Università di Sassari > 01 Dipartimenti > Patologia e clinica veterinaria
001 Università di Sassari > 01 Dipartimenti > Scienze biomediche
001 Università di Sassari > 01 Dipartimenti > Biologia animale
Publisher:Lippincott Williams & Wilkins
Copyright Holders:© American Heart Association
Deposited On:18 Aug 2009 10:01

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