**Core Concept**
Heparin's mechanism of action is closely related to its interaction with lipoprotein lipase, an enzyme crucial for the regulation of lipid metabolism. Lipoprotein lipase plays a vital role in breaking down triglycerides in lipoproteins, such as VLDL, into free fatty acids and glycerol.

**Why the Correct Answer is Right**
Heparin enhances the release and activity of lipoprotein lipase from the capillary endothelium, thereby increasing the breakdown of triglycerides. This process is essential for the regulation of lipid metabolism, particularly in the context of hypertriglyceridemia. The interaction between heparin and lipoprotein lipase is mediated by the heparin-binding site on the enzyme, which is essential for its activation.

**Why Each Wrong Option is Incorrect**
* **Option A:** Hyluronidase is an enzyme involved in the breakdown of hyaluronic acid, a key component of connective tissue. It is not directly related to heparin's mechanism of action.
* **Option C:** Amylase is an enzyme involved in the breakdown of carbohydrates, specifically starch and glycogen. It is not affected by heparin.
* **Option D:** Invease is not a recognized enzyme in the context of heparin's mechanism of action.

**Clinical Pearl / High-Yield Fact**
Lipoprotein lipase deficiency is a rare genetic disorder characterized by severe hypertriglyceridemia, which can lead to pancreatitis and other complications. Understanding the role of lipoprotein lipase in lipid metabolism is crucial for the diagnosis and management of this condition.

**✓ Correct Answer: B. Lipoprotein lipase**