Abstract
Atherosclerosis is the precedent to ischemic heart disease, which may lead to angina, myocardial infarct, or heart failure; or to ischemic cerebrovascular disease, which may lead to stroke. The prevailing belief underlying conventional approaches to treatment of atherosclerosis and its sequel is that a diet high in cholesterol and saturated fat is the main contributory factor, triggering cholesterol build up in the intima of the blood vessels. Over the last 60 years, the blame has shifted from fats, to saturated fats, to low-density lipoprotein (LDL), and finally to oxidized LDL (Ox-LDL). Therapy has been predominantly aimed at lowering cholesterol and control of risk factors. However, there is an alternative hypothesis about the cause of heart disease linking it to the weakening of the vascular collagen matrix at the sites of high hemodynamic stress (coronary arteries) which triggers the infiltration of lipoprotein(apo) [Lp(a)] and plaque development. Accordingly, the vascular deposition of large molecules such as Lp(a) and atherosclerosis is the result of the body’s endogenous protective mechanism to reinforce the weakened artery walls. Understanding this mechanism may guide the natural prevention of this disease and form the basis for developing effective therapeutic strategies aiming at natural reversal of atherosclerosis through the reinforcement of the vascular wall structure as its primary goal. This reappraisal of atherosclerosis and the cholesterol theory looked at the historical development of the theory, and the Rath and Pauling unified theory of cardiovascular disease.
Highlights
Atherosclerosis is the precedent to ischemic heart disease, which may lead to angina, myocardial infarct, or heart failure; or to ischemic cerebrovascular disease, which may lead to stroke
The prevailing belief underlying conventional approaches to treatment of atherosclerosis and its sequel is that a diet high in cholesterol and saturated fat is the main contributory factor, triggering cholesterol build up in the intima of the blood vessels
Over the last 60 years, the blame has shifted from fats, to saturated fats, to low-density lipoprotein (LDL), and to oxidized LDL (Ox-LDL)
Summary
In the open debate over the last few decades on the role of cholesterol and CHD, the line between serum lipids and dietary lipids is narrow, and the two often merged. This is due to the understanding that consuming high dietary lipids will raise the cholesterol level in the blood. Considering that heart disease has been the global leading cause of death the last twenty-five years, and will still be by 2030 [5], a few pertinent questions need be asked: 1) Could we possibly have gone wrong on the lipid hypothesis of atherosclerosis? Considering that heart disease has been the global leading cause of death the last twenty-five years, and will still be by 2030 [5], a few pertinent questions need be asked: 1) Could we possibly have gone wrong on the lipid hypothesis of atherosclerosis? 2) If so, at what stage of theoretical development have we faulted? 3) Is there any viable alternative to the lipid hypothesis? This reappraisal of atherosclerosis and the cholesterol theory looked at the historical development of the theory, and the Rath and Pauling unified theory of cardiovascular disease, to attempt to answer the questions above
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