Role of Renal Ammonium Accumulation in Ischemic Acute Renal Failure and Acute Tubular Necrosis of Rats1

Author(s):  
Martha Lenhart ◽  
James Skapars ◽  
Jorge Areas ◽  
M. Hossein Razavi ◽  
Carlos Garcia ◽  
...  
1992 ◽  
Vol 3 (3) ◽  
pp. 688-697
Author(s):  
Sara Douglas

Acute tubular necrosis (ATN) is the most common cause of acute renal failure. Early recognition of patients who are at risk for ATN can prevent or improve the course of ATN. Acute renal failure is classified as prerenal, intrinsic, or postrenal disease. ATN is classified as a type of intrinsic renal disease. The clinical course of ATN is divided into the renal failure phase, diuretic phase, and recovery phase, with each phase having distinct symptoms and laboratory findings. Diagnosis of ATN often is complicated and confusing; understanding of laboratory findings can facilitate the critical care nurse’s ability to assess those at risk for ATN. The care and treatment of the patient with ATN is complicated, and specific treatments are discussed in detail. The critical care nurse can play a vital role in identifying the patient at risk, preventing the development of ATN in those at risk, and providing appropriate care for those who develop ATN


1987 ◽  
Vol 32 (3) ◽  
pp. 313-321 ◽  
Author(s):  
Robert W. Schrier ◽  
Patricia E. Arnold ◽  
Vicki J. Van Putten ◽  
Thomas J. Burke

2007 ◽  
Vol 49 (3) ◽  
pp. 154-160 ◽  
Author(s):  
Junji Yamashita ◽  
Mamoru Ohkita ◽  
Masanori Takaoka ◽  
Yoshiaki Kaneshiro ◽  
Takato Matsuo ◽  
...  

Nephron ◽  
1976 ◽  
Vol 17 (3) ◽  
pp. 204-214 ◽  
Author(s):  
Chen H. Hsu ◽  
Theodore W. Kurtz ◽  
John M. Weller

1972 ◽  
Vol 1 (1) ◽  
pp. 65-69 ◽  
Author(s):  
J. M. Hayes

Acute renal failure has oliguria and uraemia as its cardinal manifestations. The syndrome may be due to acute tubular necrosis, glomerulonephritis, urinary tract obstruction and occlusive vascular disease. The renal damage due to acute tubular necrosis is of uncertain aetiology. Renal cortical ischaemia and depression of glomerular filtration rate are important in the pathogenesis. Activation of the renin-angiotensin system and glomerular coagulation may prove to be important in these changes. The differentiation between reversible oliguria and established renal failure is generally accomplished on clinical grounds and the response to a therapeutic trial of mannitol. Measurement of urinary sodium concentration and osmolality are valuable adjuncts. The keystone of management is the prevention of symptomatic uraemia. Infection and haemorrhage have now replaced pulmonary oedema and hyperkalaemia as the major causes of death. The mortality rate remains high in acute tubular necrosis and a significant mortality occurs in the diuretic phase.


Renal Failure ◽  
1992 ◽  
Vol 14 (4) ◽  
pp. 533-539 ◽  
Author(s):  
Helga Maria Mazzarolo-Cruz ◽  
Décio de Oliveira Penna ◽  
Luis Balthazar Saldanha ◽  
Elza Hissako Kanashiro ◽  
Jenner Cruz ◽  
...  

1994 ◽  
Vol 267 (6) ◽  
pp. F1052-F1058 ◽  
Author(s):  
H. Rabb ◽  
C. C. Mendiola ◽  
J. Dietz ◽  
S. R. Saba ◽  
T. B. Issekutz ◽  
...  

Leukocytes, particularly neutrophils, have been implicated in ischemic-reperfusion organ injury (IRI). However, their role in kidney IRI is controversial. Leukocytes express the adhesion molecules CD11/CD18 on their surface, which mediate many functions that can lead to tissue damage. To determine the role of CD11a and CD11b in IRI in the kidney, uninephrectomized Sprague-Dawley rats were pretreated with monoclonal antibodies (MAbs) directed against CD11a and CD11b or control MAbs. The serum creatinine (SCr), complete blood count, and kidney histopathological damage scores (PDS) (scale: 0-4) were assessed prior to and 24 h after 60 min of ischemia. Mean SCr 24 h after ischemia was significantly decreased in the anti-CD11a- and -CD11b-treated group compared with the control MAb-treated group (2.5 +/- 0.3 mg/dl vs. 3.4 +/- 0.2 mg/dl, P <0.05). PDS were also reduced in the CD11a and CD11b group compared with controls (2.7 +/- 0.2 vs. 3.5 +/- 0.1, P < 0.001). These data show that the CD11/CD18 leukocyte adhesion pathway plays a role in mediating ischemic acute renal failure in rats.


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