September 6th, 2011 by HarvardHealth in Health Tips, Research
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Low-fat diets, move over. When it comes to lowering cholesterol, a “portfolio” diet that includes cholesterol-lowering foods such as oatmeal, nuts, and soy products is better.
Several years ago, researchers at St. Michael’s Hospital and the University of Toronto created what they called a “dietary portfolio of cholesterol-lowering foods.” It went after cholesterol by adding to a heart-healthy diet specific foods known to lower cholesterol: margarine enriched with plant sterols; oats, barley, psyllium, okra, and eggplant, all rich in soluble fiber; soy protein; and whole almonds.
In a head-to-head test against the low-fat diet traditionally recommended by the American Heart Association, the portfolio approach was the clear winner. (You can see the makeup of the test diet here.) After 24 weeks, it lowered harmful LDL cholesterol by 13%, while the low-fat diet lowered LDL by only 3%. As an added benefit, the portfolio approach also lowered triglycerides and blood pressure, and did not depress the level of beneficial HDL cholesterol. The results were published in the Journal of the American Medical Association.
What I appreciate about this study is that it Read more »
*This blog post was originally published at Harvard Health Blog*
August 5th, 2011 by RyanDuBosar in Research
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More on the Mediterranean diet shows that olive oil is the key component associated with less stroke risk in seniors, a French study found.
The Mediterranean diet has already been linked to better cardiovascular effects, so researchers poured it on to assess its link to stroke. A study of people 65 and older in the French cities of Bordeaux, Dijon and Montpellier divided 7,625 residents into three categories of olive oil consumption: no use, moderate use for cooking or dressing, or intensive use for both cooking and dressing. Researchers used plasma oleic acid as an indirect biological marker of oleic acid intake from olive oil. (They acknowledged that it could also stem from use of butter and goose or duck fat.) Results appeared in the Aug. 2 issue of Neurology.
In the study, Read more »
*This blog post was originally published at ACP Internist*
July 30th, 2011 by DrCharles in Health Tips, Research
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A recent study confirmed that the doctor’s office may be one of the worst places to determine if your blood pressure is under control. The automatic rise in tension many people experience when they are being scrutinized contributes to artificially high blood pressure readings. Although many times the only way improve one’s blood pressure is through treatment (such as medication, a low salt diet, and weight loss), other times I’ve seen a simple 10 second relaxation routine drop a patient’s blood pressure reading by up to 20 systolic points. The following may help you obtain a better, more accurate reading the next time you have your pressure checked in the harried office.
1) Insist on being seated for at least 3 minutes before your pressure is taken. Even walking from the waiting room back into an examining room will briefly increase your blood pressure.
2) Take several deep, relaxed breaths in and out before the doctor begins to check your blood pressure.
3) Read more »
*This blog post was originally published at The Examining Room of Dr. Charles*
July 26th, 2011 by HarvardHealth in Health Tips, Research
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As if people with the combination of high blood pressure and heart disease don’t already have enough to worry about, a new study suggests that common painkillers called nonsteroidal anti-inflammatory drugs (NSAIDs) pose special problems for them.
Among participants of an international trial called INVEST, those who often used NSAIDs such as ibuprofen (Advil, Motrin and others), naproxen (Aleve, Naprosyn, and others), or celecoxib (Celebrex) were 47% more likely to have had a heart attack or stroke or to have died for any reason over three years of follow-up than those who used the drugs less, or not at all. The results were published in the July issue of the American Journal of Medicine.
Millions of people take NSAIDs to relieve pain and inflammation. They are generally safe and effective. The main worry with NSAIDs has always been upset stomach or gastrointestinal bleeding. During the last few years, researchers have raised concerns that Read more »
*This blog post was originally published at Harvard Health Blog*
July 15th, 2011 by Linda Burke-Galloway, M.D. in Health Tips, Research
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A little knowledge is dangerous; especially when it relates to medicine. A recent article in the British newspaper, Daily Mirror discussed a medical study that attempted to prove there was a link between pregnant women’s sleeping positions and stillbirth. The author is of the opinion that the study was small and biased and therefore “there is a serious need for more research before we’re in a strong position to make ¬any recommendations.” Obviously this author has limited knowledge about the cardiovascular system of a pregnant woman.
Our organs and tissues require oxygen to function. Without it, they essentially die. Blood from the lower part of our body flows back to the heart where it receives oxygen, compliments of a large blood vessel called the Inferior Vena Cava (IVC). The inferior vena cava is a large, thin-walled blood vessel located near the spine. As the pregnant uterus becomes enlarged, it can press against the IVC and reduce the amount of its blood flow. Why is that not good? Because it reduces the circulating blood flow in the body that is commonly known as our cardiac output (CO). When the pregnant uterus squeezes the IVC and reduces cardiac output, a woman might feel dizzy and even faint. Her blood supply of oxygen is reduced and the unborn baby’s is as well. When a pregnant woman in her early or late third trimester feels faint after lying flat on her back, the syndrome is called Supine Hypotensive Disorder. Her blood pressure has dropped because her cardiac output has dropped. The heart can only pump out what comes into it, so less blood into the heart means less blood going out of the heart and the patient feels faint. How is this avoided? Read more »
*This blog post was originally published at Dr. Linda Burke-Galloway*
