Hepatic lipase often found bound to HSPG, heparan sulfate proteoglycans (HSPG), keeping HL inactive and unable to bind to HDL (high density lipoprotein) or IDL (intermediate density lipoprotein). When it is free in the bloodstream, however, it is found associated with HDL to maintain it inactive. This is because the triacylglycerides in HDL serve as a substrate, but the lipoprotein contains proteins around the triacylglycerides that can prevent the triacylglycerides from being broken down by HL. One of the principal functions of hepatic lipase is to convert intermediate-density lipoprotein (IDL) to low-density lipoprotein (LDL). Hepatic lipase thus plays an important role in
Nominalized adjective Nominalized adjective A nominalized adjective is an adjective that has undergone nominalization, and is thus used as a noun. For example, in "the rich and the poor", the adjectives "rich" and "poor" function as nouns denoting people who are rich and poor respectively. The most common appearance of the nominalized adjective in English is when an adjective is used to indicate a collective group. This happens in the case where a phrase such as "the poor people" becomes "the poor". The adjective "poor" is nominalized, and the noun "people" disappears. Other adjectives commonly used in this way include "rich", "wealthy",