a biochemical reaction resulting in the addition of a methyl group (-CH3) to another molecule.

  Acetylation the addition of an acetyl group (-COCH3) group to a molecule.

the absence of hydrochloric acid in gastric juice.

having a pH of less than 7.

a condition of the skin characterized by the presence of comedones.

a rare, inherited disorder of impaired zinc absorption.

hyperpigmented patches that occur in sun-exposed skin; also known as liver spots or age spots.

having a short and relatively severe course.

also called acute-phase protein; plasma protein that is synthesized by the liver during acute inflammation. Examples include C-reactive protein (CRP), fibrinogen, serum amyloid A protein, and von Will [..]

the electrochemical signal transmitted in the cell membrane of a neuron or muscle cell. Also called nerve impulse.