<prompt> Best predictor of Cardiovascular risk amongst the following-Antichlamydial antibodyLipoprotein aC reactive protein CRPHomocysteine  <response>: Ref: R Alagappan - Manual of Practical Medicine 4th Edition.pg no:684 Lp a It consists of an apoprotein a molecule bound by sulfhydril link to the apolipoprotein B moiety of LDL paicle. Apoprotein a has homology with plasminogen and may inhibit fibrinolysis by competing with plasminogen. Thus it provides an impoant link between haemostasis and blood lipids and plays a major role in atherogenesis. Normal serum level is 0-3 mgdl. Elevated levels of lipoprotein a above 30 mgdL are associated with increased risk for atherosclerotic cardiovascular disease. Moderate reduction is possible only with niacin and the primary approach to therapy is reduction of LDL-C. 