n. 1  A nucleic acid that carries the genetic information in cells and some viruses, consisting of two long chains of nucleotides twisted into a double helix and joined by hydrogen bonds between the complementary bases adenine and thymine or cytosine and guanine.
Less than 1 percent of patients with normal results on liver function tests before taking extended-release niacin tablets have elevated liver enzyme values (more than three times the reference range) after niacin is started.
The liver enzymes might rise due to several reasons. A liver injury could increase the liver enzymes levels in the blood. Hepatitis A, B and C are common causes of elevated liver enzymes. High liver enzymes might indicate presence of stone in the gall bladder or a gall bladder disease.