Medical Forum / Diseases and Disorders / Alzheimer's / September 2008
Bloodletting In Angina And Dementia
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ironjustice - 17 Sep 2008 17:56 GMT Reducing blood viscosity may improve chest pain and mental function
July 22, 2008 – Case reports published in the July/August issue of Alternative Therapies in Health and Medicine, a peer-reviewed scientific journal, describe the application of therapeutic phlebotomy (or blood-letting) in two patient cases: the first involving a patient presenting with severe angina and the second reporting progressive fatigue for a decade culminating in dementia. Both case studies, performed at the Paracelsus Clinic near Seattle, Washington, utilized serial phlebotomy in moderate amounts (0.5-pint or 250-cc per session) to mitigate symptoms and improve the quality of life.
Case 1 describes a 58 year-old, active housewife, who complained of episodes of chest pain “like an elephant on my chest,” clearly indicative of angina pectoris. She was cleared at the local hospital of having had a heart attack (myocardial infarction), and coronary angiograms were normal. However, the patient’s blood viscosity was tested and found to be extremely elevated. After phlebotomy was performed 8 times, the last episode of chest pain occurred 10 months after the initial episode. Twenty-two months after the initial viscosity measurement, her levels had approached the normal range.
Case 2 details a 66 year-old publisher whose symptoms were severe enough to lead him to consider discontinuing his business endeavors. While the patient’s CT cerebral angiogram was normal, his blood viscosity measurements were elevated. Phlebotomy was performed 5 times on the patient to improve microcirculation and cerebral perfusion. The patient’s symptoms were alleviated within a month of the last phlebotomy, and he was able to continue his business endeavors. In both cases studies, a thrombogenic potential index was utilized to monitor changes in blood viscosity.
Serial phlebotomy works to reduce blood viscosity by hemodilution, as the plasma is restored by hydration more rapidly than are the red blood cells. The study co-authors wrote that the subsequent reduction in viscosity leads to an increase in the delivery of oxygen to the body’s tissues by two physiologic mechanisms: (1) increased cardiac output and (2) reduced oxygen shunting that occurs normally between arterioles and venules. In the first mechanism, decreased viscosity reduces the flow resistance at the peripheral vessels, thus leading to greater oxygen delivery. In the second mechanism, the difference in oxygen concentration between the arterioles and venules leads to shunting, where oxygen is extracted from arterial blood to the veins. By reducing the viscosity, flow increases and the transit time to the capillaries is reduced, thereby limiting the amount of oxygen that is extracted from the arterioles.
According to the authors, “an evaluation of blood viscosity by clinical means is a useful, inexpensive outpatient clinical tool,” and “the best-known mechanism for correcting [abnormal viscosity] is repeated (but not excessively frequent) phlebotomy in small amounts.”
SOURCE:
T. Dorman, et al. Benefits of reducing whole blood viscosity for patients with angina and dementia symptoms. Alternative Therapies, (2008) 14 (4), 48-51
Who loves ya. Tom
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anonymous@nowhere.you.know - 17 Sep 2008 20:33 GMT This is just an example of several posts made recently not having nutritional content. Should not you be more selective in your choice of news groups?
ironjustice@aol.com - 17 Sep 2008 21:48 GMT On Sep 17, 12:33 pm, anonym...@nowhere.you.know wrote: This is just an example of several posts made recently not having nutritional content. Should not you be more selective in your choice of news groups? <<
Viscosity of the blood has been explained to you in its' relation TO nutrition / diet.
You are unable to understand HOW diet affects blood viscosity.
"Better to be thought an idiot than to open your mouth and prove it"
Who loves ya. Tom
Jesus Was A Vegetarian! http://tinyurl.com/634q5a
Man Is A Herbivore! http://tinyurl.com/4rq595
DEAD PEOPLE WALKING http://tinyurl.com/zk9fk
ironjustice@aol.com - 17 Sep 2008 22:16 GMT On Sep 17, 1:48 pm, "ironjust...@aol.com" <ironjust...@aol.com> wrote: HOW diet affects blood viscosity. <<
Karen Pallarito, "Veggie Diet May Lower High Blood Pressure", ABC News, January 21, 2005,
Vegetarians tend to have lower blood pressure than the general population, but it hasn't been clear whether their diet or their lifestyle guards them against hypertension.
Now, a new review of previously published studies claims that diet provides the protection.
Who loves ya. Tom
Jesus Was A Vegetarian! http://tinyurl.com/634q5a
Man Is A Herbivore! http://tinyurl.com/4rq595
DEAD PEOPLE WALKING http://tinyurl.com/zk9fk
"It's the diet itself, and it is clearly the diet of choice for people who want to get their blood pressure under control," said Dr. Neal D. Barnard, president and founder of the Physicians Committee for Responsible Medicine and co-author of the report, which appears in the January issue of Nutrition Reviews.
Barnard, a nutritionist and author of the book Breaking the Food Seduction: The Hidden Reasons Behind Food Cravings and Seven Steps to End Them Naturally, concluded that a person who suffers from hypertension and has yet to switch to a vegetarian diet is "really trying to fight their condition with one arm tied behind their back."
About 65 million American adults have high blood pressure, according to the National Heart, Lung, and Blood Institute. Hypertension is often called the "silent killer" because it usually has no symptoms but leads to increased risk for heart disease, congestive heart failure, stroke and kidney failure.
Barnard and committee nutritionist Susan Berkow analyzed 80 scientific studies, including observational studies of individuals on vegetarian diets compared with non-vegetarians and randomized, controlled trials in which outcomes of people who switch to a plant-based diet were compared with control subjects.
"The purpose of our review was to bring together what is known about the effect of the diet, but also what we know about the mechanism and try to explain why this occurs," Barnard explained.
Some of the best observational data, according to the report, come from studies involving Seventh-Day Adventists, who advocate an alcohol- free, tobacco-free, vegetarian lifestyle. About 50 percent of Adventists follow a lacto-ovo-vegetarian diet, which includes dairy products and eggs, the authors noted.
One study involving California Adventists found that vegetarians have about half the prevalence of hypertension compared to non-vegetarian Adventists. When hypertensives were defined as those taking medication intended to reduce their blood pressure, a nearly threefold difference in the prevalence of hypertension was seen between the groups.
Overall, the randomized controlled trials included in the review found that blood pressure is lowered when animal products were replaced with vegetable products in both people with normal blood pressure and those who are hypertensive.
To understand the blood-pressure-lowering effects of a plant-based diet, the authors examined changes in body weight and intake of specific food groups and nutrients.
Studies show that vegetarians tend to be slimmer, on average, which may help explain their lower incidence of hypertension. A vegetarian diet also is significantly lower in saturated fat, reducing the viscosity, or thickness, of the blood.
Blood becomes "less like oil, more like water," Barnard explained.
And because vegetarian diets are generally high in fruits and vegetables, people who follow this diet consume more potassium than those who eat a diet of meat and vegetables. The analysis cites two reviews involving a total of 52 randomized clinical trials showing potassium supplementation significantly lowered blood pressure in people with normal and elevated blood pressure.
There are those who disagree with the finding, however.
Dr. Lawrence J. Appel, a nutrition specialist at the Johns Hopkins Bloomberg School of Public Health, said the paper fails to establish a clear cause-and-effect relationship between consuming a plant-based diet and lowering one's blood pressure.
"It's a good review, but there are still unanswered questions," he said.
He also noted that very few clinical trials have been conducted, and that those that have been done are small and not tightly controlled. Much of the data is observational.
So, he said, it remains unclear whether a vegetarian diet alone is responsible for lowering blood pressure or whether some aspect of a vegetarian regimen -- such as eating lots of fruits and vegetables rich in potassiumand fiber while maintaining a desirable body weight -- could have the same effect.
And then there there is the fact that not everyone who has high blood pressure eats poorly or is overweight; genetic factors significantly influence a person's risk for hypertension.
Still, Barnard insists a vegetarian diet is healthy for everyone, whether or not they have high blood pressure.
He offers this caveat for people taking blood pressure medication: "Don't throw your medication in the trash." High blood pressure is a serious medical condition requiring immediate medical attention. Even if you switch to a vegetarian diet to trim down, you won't lose the weight overnight, he said. It could take more than a year for a person who is 60 pounds overweight to drop that excess baggage.
Barnard hopes the review will prompt more doctors to recommend a vegetarian diet. Many are reluctant to do because they fear that patients won't stick with it, but there's no reason to believe patients would be less likely to go vegetarian than to comply with other diets, he said.
"They may not hit the mark 100 percent, but they'd do much better if a doctor recommended it," he said.
Barnard's group, the physicians committee, is a Washington, D.C.- based nonprofit that promotes good nutrition, opposes unethical human experimentation and advocates alternatives to animal research.
> "Better to be thought an idiot than to open your mouth and prove it" > [quoted text clipped - 6 lines] > > DEAD PEOPLE WALKINGhttp://tinyurl.com/zk9fk anonymous@nowhere.you.know - 17 Sep 2008 22:47 GMT This is just an example of several posts made recently not having nutritional content. Should not you be more selective in your choice of news groups?
"Viscosity of the blood has been explained to you in its' relation TO nutrition / diet."
Then you need to make the connection each time if you think it can be made. You mentioned in passing one case that somehow involved veggie alone folk. You can not tie the entire universe to everything else by that one case. Some meat eaters have thin blood. should we make a universal case of that also?
Kaz Kylheku - 17 Sep 2008 23:02 GMT > This is just an example of several posts made recently not having > nutritional content. Should not you be more selective in your choice of > news groups? Why can you not see that you're replying to a moron who obviously could not pass any fifth grade subject if his life depended on it?
Really, what sense does it make to obsess over iron, when your foil hat contains a high fraction of toxic tin?
ironjustice@aol.com - 18 Sep 2008 02:43 GMT On Sep 17, 2:47 pm, anonym...@nowhere.you.know wrote:Some meat eaters have thin blood <<
Now you seem to use words in such a manner that people seem THEN to think that it is not .. accepted .. vegetarians have lower hemoglobins.
EVERYONE knows vegetarians are all .. "anemic" ..
Therefore .. ? .. one can assume all those people saying that mean .. "as opposed to meat eaters" ..
That's using your deductive skills ..
You have been shown studies which show CLEARLY the vegetarians ARE hypoviscous / thin blood ..
You KNOW higher hemoglobins bring increased viscosity / thicker blood.
NOW here is where YOU come in .. with .. ? .. "Some meat eaters have thin blood " ..
Whereas you should have said .. all meat eaters have higher viscosity than vegetarians.
That's using reasoning .. because you already know there are no meat eaters that DO meet the criteria of low hemoglobin whereas ALL vegetarians.. do. They're all anemic.
Sooo the chances of there BEING any meat eaters who DO meet the criteria OF .. "that hemoglobin found in a vegetarian" .. is very low.
Soo .. some .. is relative ..
THEY must be sick or something HAVING thin blood as meat eaters.
You can't call a very LOW number .. something one might even try to "make a universal case for "..
You'd think one might want to go for the very HIGH number .. horse betting wise .. odds .. and such.
Who loves ya. Tom
Jesus Was A Vegetarian! http://tinyurl.com/634q5a
Man Is A Herbivore! http://tinyurl.com/4rq595
DEAD PEOPLE WALKING http://tinyurl.com/zk9fk
C
> This is just an example of several posts made recently not having > nutritional content. Should not you be more selective in your choice of [quoted text clipped - 8 lines] > that one case. Some meat eaters have thin blood. should we make a > universal case of that also?
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