Assay for endogenous heparin in plasma of livestock using a synthetic chromogenic substrate.

This research investigates the amount of heparin, a naturally occurring anticoagulant, in the blood plasma of various livestock animals. Using a synthetic chromogenic substrate, the study found the lowest levels of heparin in cattle and the highest in pigs.

Objective of the Research

• The main objective of the research was to measure the levels of endogenous heparin in the plasma of different livestock animals including horses, cows, sheep, and pigs. This was done using a synthetic chromogenic substrate called benzoyl-isoleucyl-glutamyl-glycyl-arginyl-p-nitroanilide (S-2222).

Methodology

• The research was conducted by taking plasma samples from these animals and applying the synthetic chromogenic substrate S-2222.
• This substrate is specifically designed to react with heparin in the plasma, resulting in a color change that can be measured using colorimetric analysis.

Results and Findings

• From the analysis, it was found that the plasma of pigs had the highest concentrations of heparin.
• In contrast, the cattle plasma samples were determined to have the lowest heparin concentrations.

Conclusion

• The research provides valuable insights into the natural levels of the anticoagulant, heparin, present in various livestock animals. It highlights the potential physiological and pharmacological differences across species.