What is the fine-grained topic of the following text: This simplistic interpretation is most evident in the positive and negative correlations with the atherosclerotic process manifested by cholesterol associated with the most abundant lipoprotein species, respectively low density (LDL) and high density (HDL) lipoproteins 1,2. Only return the topic.
Correlation between atherosclerotic process and cholesterol in low density and high density lipoproteins