Document Detail


Naloxone in renal ischemia: a functional and microanatomical study.
MedLine Citation:
PMID:  3586632     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Naloxone HCl (Nx) improves cardiopulmonary performance, reverses cellular hypoxia, and stabilizes lysosomal membranes in shock states. However, no detailed study has yet explored its potential role in renal ischemia, which is inevitable in transplantation and surgical and nonsurgical conditions associated with hypotension and shock. This functional and microanatomical study was carried out on dogs subjected to renal warm ischemia with contralateral nephrectomy. Group I (control; N = 4) had bilateral renal dissection and right nephrectomy. Groups II-IV had their kidney pedicles cross-clamped for 60 min and then reperfused. Group II (N = 9) ischemic kidneys received no treatment. Group III (N = 6) kidneys were flushed with pure Nx HCl (2 mg/kg) during ischemia. Group IV (N = 6) dogs received one iv Nx bolus (2 mg/kg) before clamping and another dose before declamping. Biopsies for adenine nucleotides, histology, and ultrastructure were obtained before ischemia, before reflow, and 15 min and 7 days after reflow. Serum creatinine and blood urea nitrogen were measured daily. Ischemia induced significant renal dysfunction, which was reversed by systemic Nx. Nx offered a remarkable protection against postischemic structural damage. Seventy percent of Group II cortical sections showed grade 4 acute tubular necrosis (ATN), and severe residual damage after a week. Eighty-three percent of Group IV sections showed grade 1 ATN and no residual damage after a week. One week survival was 33% in Group II and 100% in Group IV. Nx can be useful in prevention of acute renal failure in clinical situations with arterial hypotension and shock.
Authors:
H K Elkadi; D D Nghiem; J H Southard; K M Kelly; C L Olson
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of surgical research     Volume:  42     ISSN:  0022-4804     ISO Abbreviation:  J. Surg. Res.     Publication Date:  1987 Jun 
Date Detail:
Created Date:  1987-07-23     Completed Date:  1987-07-23     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0376340     Medline TA:  J Surg Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  675-92     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adenine Nucleotides / metabolism
Animals
Blood Urea Nitrogen
Creatinine / blood
Dogs
Kidney / blood supply*
Kidney Cortex / metabolism,  pathology,  ultrastructure
Kidney Failure, Acute / etiology,  prevention & control*
Naloxone / pharmacology*
Nephrectomy
Postoperative Complications / prevention & control*
Regional Blood Flow
Temperature
Chemical
Reg. No./Substance:
0/Adenine Nucleotides; 465-65-6/Naloxone; 60-27-5/Creatinine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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