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James Hamilton, M. D.
Statins, Part II
I'll make this the final part, at least for now, and keep it short.
There are a few points and the final chapter regarding statin drugs has probably not been written.
Statins really revolutionized the treatment of hypercholesterolemia and, subsequentially, the outcome of atherosclerotic diseases. In "the old days" when I entered the medical field we were limited in our knowledge and ability to lower cholesterol levels. Niacin and fibrates (Atromid-S) were not all that effective. Statins were, and still are, very effective in decreasing LDL (bad cholesterol) levels.
Of course, diet, exercise and lifestyle modifications are always considered first line therapy for treatment and prevention of cholesterol related issues. But, let's be real folks, at our age are we actually going to change that much how we live?
There are a lot of statins now on the market. The relative effectiveness of these depends not only on dosage but the kind of statin. Some are "stronger" than others.
One can also divide statins into another category that being solubility. Lipophilic statins are soluble in fat and hydrophilic ones in water. Simvastatin, atorvastatin, cerivastatin, fluvastatin, pitavastatin and lovastatin are primarily fat soluble whereas pravastatin and rosuvastatin are mostly hydrophilic.
It would seem to me that tissues that absorb various statins (based on solubility) might be targets for any side effects that could occur - that is, IF they occur. The brain is fatty, the liver is more "watery". So, if a patient would get an adverse reaction to a certain statin, switching to a different statin may be indicated. A tissue that we do know can be affected, occassionally seriously, is muscle tissue. Although that is fairly rare it is more likely that that affect is caused by the patient being on other drugs that, when combined with certain statins, can cause severe muscle damage.
Medical studies are not infrequently found to contradict each other. That is possibly due to the fact that the human body has a lot of "pathways" that can be affected in different ways. Preventing atherosclerosis in arteries (including carotid arteries) is good for the brain and probably outweighs many direct toxic effects that could damage it. Certainly strokes damage brain cells. Also preventing heart attacks is beneficial to the brain.
As one can see there are no easy answers, but I, personally, am a fan of statin therapy in the right clinical setting.
There are newer and stronger drugs on the market now for hypercholesterolemia, most of which are directed at younger patients who have hereditary forms of the disease. PKSC inhibitors are injectable monoclonal antibodies (very expensive) that are available and dempedoic acid is also occasionally used along with the more standard (statin) medicines.
Again, your individual doctors should know your cases the best and which medicines at which doses would be most appropriate for you.
To your health,
Jim
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