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
Scotch (adjective) ma Scotch blue bell." Scotch (adjective) Scotch is an adjective meaning "of Scotland". The modern usage in Scotland is Scottish or Scots, and the word "Scotch" is only applied to specific products, mostly food or drink, such as Scotch whisky, Scotch pie, Scotch broth, and Scotch eggs. "Scotch" applied to people is widely considered pejorative in Scotland, reflecting old Anglo-Scottish antagonisms, but it is still occasionally used in England and Ireland, though the usage is considered old-fashioned. The verb "to scotch" is unrelated to the adjective. It derives from Anglo-French "escocher" meaning "to notch, nick", from "coche", "a notch, groove",