Which of the following is not steroid?: (A) Estrogen, (B) Cholic acid, (C) Leukotrians, (D) Vitamin D
Answer is C. Leukotrienes are a family of inflammatory mediators produced in leukocytes by the oxidation of arachidonic acid (AA) and the essential fatty acid eicosapentaenoic acid (EPA) by the enzyme arachidonate 5-lipoxygenase.Ref: DM Vasudevan, 7th edition, page no: 190