Exocrine pancreas Flashcards
Serum amylase
Not specific to pancreas (does have a higher concentration though)
Seen in Intestine, Salivary gland (except dogs), ovary and testes
Amylase
Hydrolyzes complex carbs to form maltose and glucose
Increased serum amylase
-Acute pancreatitis and neoplasia
-Chronic renal insufficiency
-Decreased GFR
-Intestinal disease of obstruction
(rare in cats)
Lipase
Hydrolyzes triglycerides
Serum lipase
Several forms:
-Pancreatic
-Hepatic
-Gastrointestinal
-Renal
-Lipoprotein
Increased serum lipase
-Acute pancreatitis
-Pancreatic neoplasia
-Gastrointestinal disease
-Hepatic disease
-Azotemia
-Hyperadrenocorticism
Mild increased in amylase and lipase
Usually due to GFR (2-3x UPR)
moderate increase in amylase and lipase (>3-5x URI)
Pancreatic disorder
Increase in proteolytic enzymes
-Acinar cell damage
-Decreased renal excretion
-Recent food consumption
-Cats: vitamin B12 deficiency
Decrease in proteolytic enzymes
-Reduced secretion from acinar cells
-Chronic pancreatitis
-Exocrine pancreas insufficiency
Serum pancreatic lipase immunoreactivity
Uses antibody specific for pancreatic lipase
Good for ruling in pancreatitis if + but not useful for ruling it out if negative
Exocrine pancreatic insufficiency
Inadequate pancreatic enzymes diagnose with serum trypsin-like immunoreactivity
Serum trypsin-like immunoreactivity
Uses antibodies against both trypsin and trypsinogen which is only synthesized by pancreas and is species specific