Hepatic stellate cell in the cell body store vitamin A as retinol ester. The function and role of quiescent hepatic stellate cells is unclear. Recent evidence suggests a role as a liver-resident antigen-presenting cell, presenting lipid antigens to and stimulating proliferation of NKT cells. When the liver is damaged, stellate cells can change into an "activated" state. The activated stellate cell is characterized by proliferation, contractility, and chemotaxis. This state of the stellate cell is the main source of extracellular matrix production in liver injury. This attribute makes it a key factor in the pathophysiology of the liver. The amount of stored vitamin
Postpositive adjective Postpositive adjective A postpositive or postnominal adjective is an attributive adjective that is placed after the noun or pronoun that it modifies. This contrasts with prepositive adjectives, which come before the noun or pronoun. In some languages the postpositive placement of adjectives is the normal syntax, but in English it is less usual, largely confined to archaic and poetic uses (as in "They heard wights unseen), phrases loaned from Romance languages or Latin (such as "heir apparent, "aqua regia"), and certain particular grammatical constructions (as in "those anxious to leave"). Recognizing postpositive adjectives in English is important for determining the