Comparative studies on serum arginase and transaminases in hepatic necrosis in various species of domestic animals.

The study compares serum concentrations of arginase and two transaminases in various domestic animals both before and after they were given a substance known to cause liver cell death. It finds that increased levels of arginase in the blood can be used as a reliable indicator of liver damage in all studied animals, while one of the transaminases is only a reliable marker in dogs and cats.

Study Matter and Design

• The researchers conducted a comparative study to assess serum concentrations of specific enzymes – arginase, glutamic pyruvic transaminase (SGPT), and glutamic oxaloacetic transaminase (SGOT) – in various domestic animals.
• The species studied included dogs, cats, horses, cattle, sheep, and pigs. These animals were used as models to compare the enzymes’ behaviors according to the species.
• The researchers measured the enzymes’ concentrations before and after the animals were given carbon tetrachloride (CCl4), a substance known to cause hepatic necrosis, or liver cell death.

Observations and Results

• After administration of CCl4, the researchers noted an increase in the serum concentration of arginase and SGOT to a level of diagnostic significance in all animals. This meant these enzymes could be used as indicators of liver damage across the studied species.
• SGPT, on the other hand, showed a notable increase only in dogs and cats. It also marginally increased in one out of three cattle and two out of three pigs, indicating it may not be a reliable indicator of liver damage in all animals.
• The researchers also observed that in the animals that survived, the serum concentration of arginase returned to the normal range quicker than SGPT or SGOT.

Conclusions

• The research concluded that an elevated level of serum arginase could be a reliable indicator of hepatic necrosis in both small and large animals, based on the experimental toxicity results of this study.
• SGPT, however, appeared to be a reliable indicator of liver damage only in dogs and cats, suggesting its use may be limited to certain species.