Difference between revisions of "Glutamate dehydrogenase"

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(Created page with "== GLDH Introduction == ''Virtually liver specific, this enzyme is localised almost exclusively in the mitochondria of hepatocytes. It is generally considered that a severe in...")
 
 
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== GLDH Introduction ==
 
== GLDH Introduction ==
''Virtually liver specific, this enzyme is localised almost exclusively in the mitochondria of hepatocytes. It is generally considered that a severe insult is required to bring about its release and it is therefore not a sensitive general marker for hepatic disease. However, GLDH has been demonstrated to be a sensitive marker of hepatocellular necrosis in the dog irrespective of its severity.''
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Virtually liver specific, this enzyme is localised almost exclusively in the mitochondria of hepatocytes. It is generally considered that a severe insult is required to bring about its release and it is therefore not a sensitive general marker for hepatic disease. However, GLDH has been demonstrated to be a sensitive marker of hepatocellular necrosis in the dog irrespective of its severity.
  
=== ''Small Animals'' ===
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=== Small Animals ===
  
==== ''Causes of increased GLDH activity'' ====
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==== Causes of increased GLDH activity ====
  
* ''Hepatocellular necrosis''
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* Hepatocellular necrosis
* ''Secondary hepatopathies (for example, congestive heart failure and small intestinal pathology)''
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* Secondary hepatopathies (for example, congestive heart failure and small intestinal pathology)
  
==== ''Complementary tests'' ====
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==== Complementary tests ====
''ALT, albumin, bilirubin and bile acids.''
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ALT, albumin, bilirubin and bile acids.
  
=== ''Equine'' ===
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=== Equine ===
''GLDH has a relatively short half life in the horse (12-14 hours) compared to LDH, [[Aspartate aminotransferase|AST]] and [[Gamma-glutamyltransferase|GGT]]. Elevated levels therefore indicate active hepatocellular damage.''
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GLDH has a relatively short half life in the horse (12-14 hours) compared to LDH, [[Aspartate aminotransferase|AST]] and [[Gamma-glutamyltransferase|GGT]]. Elevated levels therefore indicate active hepatocellular damage.
  
 
==== Causes of increased GLDH activity ====
 
==== Causes of increased GLDH activity ====
  
* ''Hepatocellular necrosis''
+
* Hepatocellular necrosis
  
* ''Enteropathy – common and levels can be quite high''
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* Enteropathy – common and levels can be quite high
  
==== ''Complementary tests'' ====
+
==== Complementary tests ====
''[[Aspartate aminotransferase|AST]], [[Gamma-glutamyltransferase|GGT]] (hepatocellular damage) and bile acids (hepatic function).''
+
[[Aspartate aminotransferase|AST]], [[Gamma-glutamyltransferase|GGT]] (hepatocellular damage) and bile acids (hepatic function).
  
 
== Authors & References ==
 
== Authors & References ==
 
[[NationWide Laboratories]]
 
[[NationWide Laboratories]]
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[[Category:Clinical Chemistry|ABCDEFGHIJKLMN]]

Latest revision as of 15:56, 28 April 2022

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GLDH Introduction

Virtually liver specific, this enzyme is localised almost exclusively in the mitochondria of hepatocytes. It is generally considered that a severe insult is required to bring about its release and it is therefore not a sensitive general marker for hepatic disease. However, GLDH has been demonstrated to be a sensitive marker of hepatocellular necrosis in the dog irrespective of its severity.

Small Animals

Causes of increased GLDH activity

  • Hepatocellular necrosis
  • Secondary hepatopathies (for example, congestive heart failure and small intestinal pathology)

Complementary tests

ALT, albumin, bilirubin and bile acids.

Equine

GLDH has a relatively short half life in the horse (12-14 hours) compared to LDH, AST and GGT. Elevated levels therefore indicate active hepatocellular damage.

Causes of increased GLDH activity

  • Hepatocellular necrosis
  • Enteropathy – common and levels can be quite high

Complementary tests

AST, GGT (hepatocellular damage) and bile acids (hepatic function).

Authors & References

NationWide Laboratories