Fish Oil Improves Memory, Reduces Diabetes and Heart Disease Risk Factors



Fish Oil Improves Memory, Reduces Diabetes and Heart Disease Risk Factors


 

 

 

FISH OIL IMPROVES MEMORY, REDUCES DIABETES AND HEART DISEASE RISK FACTORS

Fish oil, which is rich in anti-inflammatory omega-3 polyunsaturated fatty acids, can play an important role in maintaining cardiovascular health.  There is also research data available to suggest that regular supplements of fish oil may improve brain function, including memory, in older patients.  Now, a recently published research paper, which appears in the Nutrition Journal, provides strong evidence that fish oil supplements can indeed improve cognitive function, while simultaneously reducing risk factors for cardiovascular disease.

In this study, 40 healthy middle-aged and elderly research volunteers underwent initial evaluation, including blood tests and cognitive function testing.  In this “placebo-controlled crossover” study, the volunteers were randomly divided into two groups.  One group received 3 grams of fish oil per day, while the other group received a placebo (sugar) pill.  After 5 weeks, the two groups of research volunteers were retested, and were then switched, or “crossed over,” with respect to the fish oil supplements and placebo pills.  After 5 additional weeks, the research volunteers were all once again retested.

Retesting of these research volunteers showed a significant improvement in memory function after taking fish oil for 5 weeks (when compared to the volunteers who were taking placebo pills).  Moreover, fish oil supplementation was also associated with a lower level of fat (triglycerides) in the blood, lower blood pressure, lower blood sugar levels, and a decrease in the level of the inflammatory protein TNF-alpha (tumor necrosis factor-alpha).

Taken together, the findings of this clinical study identified several apparent health benefits associated with daily fish oil supplements in middle-aged and elderly research volunteers, including improved memory function and improvements in multiple known risk factors for cardiovascular disease and diabetes.

 

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Dr. Wascher’s latest video:

Dark as Night, Part 1


Dark as Night, Part 1

Dark as Night, Part 1


At this time, more than 8 percent of Americans are unemployed.  According to the Bureau of Labor Statistics, however, the unemployment rate for veterans who served on active duty between September 2001 and December 2011 is now more than 12 percent.  A new website, Veterans in Healthcare, seeks to connect veterans with potential employers.  If you are a veteran who works in the healthcare field, or if you are an employer who is looking for physicians, advanced practice professionals, nurses, corpsmen/medics, or other healthcare professionals, then please take a look at Veterans in Healthcare. As a retired veteran of the U.S. Army, I would also like to personally urge you to hire a veteran whenever possible.

For a groundbreaking overview of cancer risks, and evidence-based strategies to reduce your risk of developing cancer, order your copy of my bestselling book, “A Cancer Prevention Guide for the Human Race,” from AmazonBarnes & NobleBooks-A-MillionVroman’s Bookstore, and other fine bookstores!

Within one week of publication, A Cancer Prevention Guide for the Human Race was ranked #6 among all cancer-related books on the Amazon.com “Top 100 Bestseller’s List” for Kindle e-books. Within three months of publication, A Cancer Prevention Guide for the Human Race was the #1 book on the Amazon.comTop 100 New Book Releases in Cancer” list.




Disclaimer:  As always, my advice to readers is to seek the advice of your physician before making any significant changes in medications, diet, or level of physical activity


 

Dr. Wascher is an oncologic surgeon, professor of surgery, cancer researcher, oncology consultant, and a widely published author


 

I and the staff of Weekly Health Update would again like to take this opportunity to thank the more than 100,000 health-conscious people from around the world who visit this premier global health information website every month.  Over the past 12 months, more than 2.4 million pages of high-quality medical research findings were served to the worldwide audience of health-conscious readers.  As always, we enjoy receiving your stimulating feedback and questions, and I will continue to try and personally answer as many of your inquiries as I possibly can.


 


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Resveratrol May Reduce Cancer Risk and Cancer Cell Growth



 

A new study suggests that resveratrol may reduce cancer risk and cancer progression.



 

 

 

RESVERATROL MAY REDUCE CANCER RISK AND CANCER CELL GROWTH

As I discuss in my bestselling book, A Cancer Prevention Guide for the Human Race, resveratrol, a plant-derived phenol, has been found, in laboratory studies, to potentially reduce the risk of both cardiovascular disease and cancer, and may increase longevity as well (at least in laboratory animals…).

Resveratrol’s anti-cancer effects have been observed in multiple laboratory studies using cancer cells grown in culture and in laboratory animals.  (Unfortunately, there is very little clinical data available regarding the effects of resveratrol in humans.) However, the precise mechanisms whereby resveratrol may inhibit the development and growth of cancer cells remain unclear at this time.  Now, a newly published study, which appears in the journal Cancer Prevention Research, sheds some important scientific light on at least one mechanism whereby resveratrol may inhibit cancer cell development and growth.

In this two-part laboratory study, resveratrol was found to increase the production of the enzyme SIRT1, which appears to play an important role in suppressing cancer cell growth and survival.

In the first part of this study, human prostate cancer cells were exposed to resveratrol, which resulted in an increase in the production of SIRT1, and an associated decrease in tumor cell growth and survival.

In the second part of this study, a strain of mice predisposed to developing prostate cancer had their food supplemented with resveratrol.  When compared to similar mice that did not receive resveratrol supplements, exposure to dietary resveratrol resulted in a significant decrease in prostate gland size, and, more importantly, a significant reduction (54%) in precancerous changes (high-grade prostatic intraepithelial neoplasia, or HGPIN) within the prostate gland.  When the prostate glands of the resveratrol-supplemented mice were tested, increased levels of the SIRT1 enzyme were also confirmed.

This study showed that resveratrol increases SIRT1 levels, which may, in turn, reduce the development of precancerous changes that can lead to the development of prostate cancer (and, potentially, other types of cancer as well).  This study also showed that resveratrol may also be able to reduce the growth and survival of human prostate cancer cells.

There are a couple of very important caveats to mention with regards to this study.  First of all, as I have repeatedly noted before, what works on cancer cells growing in a laboratory dish, or in genetically altered laboratory animals, often fails to work on human beings.  Secondly, there is no long-term clinical data looking at the effects (either good or bad) of resveratrol supplementation in humans.  Finally, resveratrol is poorly absorbed in humans, and relatively high (and frequent) oral intake of this compound is required to achieve blood levels comparable to those concentrations used in most laboratory studies. Fortunately, at this time there are approximately a dozen human research studies underway that are assessing the impact of resveratrol supplementation on cancer risk and cancer-associated survival.  Hopefully, some of these ongoing clinical studies will shed additional important scientific light on the potential of resveratrol to prevent and treat cancer in humans, although the findings of these studies are still years away.

Links to Other Breaking Health News

Flu Cases Surge in US, Especially Among the Unvaccinated

Regular Walks Cut Stroke Risk

Falling Asleep While Driving More Common than Previously Thought

Growing Immune Cells to Fight Cancer

Celebrity Health Fads Debunked

Thousands of Surgery Mistakes Are Still Happening Each Year

New Graphic Antismoking Ads Debut in England

Kids with Food Allergies May Become Targets of Bullies

Obesity Among Young Children May Be Declining

Tamoxifen for 10 Years (Instead of 5 Years) Significantly Improves Breast Cancer Survival Rate

Fresh Fruits & Vegetables May Reduce Breast Cancer Risk

Satisfaction with Life May Actually Increase with Age

Brain Changes in the Elderly May Increase Susceptibility to Being Scammed

“Talking” Therapy May Help Depression When Antidepressant Medications Fail

New Egg-Free Flu Vaccine

Graphic Cigarette Labels in Australia

Predicting Childhood Obesity at Birth

Inexpensive Power Foods

 


Dr. Wascher’s latest video:

Dark as Night, Part 1


Dark as Night, Part 1

Dark as Night, Part 1


At this time, more than 8 percent of Americans are unemployed.  According to the Bureau of Labor Statistics, however, the unemployment rate for veterans who served on active duty between September 2001 and December 2011 is now more than 12 percent.  A new website, Veterans in Healthcare, seeks to connect veterans with potential employers.  If you are a veteran who works in the healthcare field, or if you are an employer who is looking for physicians, advanced practice professionals, nurses, corpsmen/medics, or other healthcare professionals, then please take a look at Veterans in Healthcare. As a retired veteran of the U.S. Army, I would also like to personally urge you to hire a veteran whenever possible.


For a groundbreaking overview of cancer risks, and evidence-based strategies to reduce your risk of developing cancer, order your copy of my bestselling book, “A Cancer Prevention Guide for the Human Race,” from AmazonBarnes & NobleBooks-A-MillionVroman’s Bookstore, and other fine bookstores!

Within one week of publication, A Cancer Prevention Guide for the Human Race was ranked #6 among all cancer-related books on the Amazon.com “Top 100 Bestseller’s List” for Kindle e-books. Within three months of publication, A Cancer Prevention Guide for the Human Race was the #1 book on the Amazon.comTop 100 New Book Releases in Cancer” list.




Disclaimer:  As always, my advice to readers is to seek the advice of your physician before making any significant changes in medications, diet, or level of physical activity


 

Dr. Wascher is an oncologic surgeon, professor of surgery, cancer researcher, oncology consultant, and a widely published author


 

I and the staff of Weekly Health Update would again like to take this opportunity to thank the more than 100,000 health-conscious people from around the world who visit this premier global health information website every month.  Over the past 12 months, more than 2.3 million pages of high-quality medical research findings were served to the worldwide audience of health-conscious readers.  As always, we enjoy receiving your stimulating feedback and questions, and I will continue to try and personally answer as many of your inquiries as I possibly can.


 


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Multivitamins and Cancer Risk: Reading Between the Lines





 

A new study in the Journal of the American Medical Association claims that a daily multivitamin supplement reduces cancer risk….


 

 

MULTIVITAMINS AND CANCER RISK: READING BETWEEN THE LINES

As I discuss in my book, A Cancer Prevention Guide for the Human Race, recent high-level studies of common vitamins, including antioxidant vitamins, has dimmed the prior enthusiasm that these micronutrients can reduce the risk of cancer, or cardiovascular disease, in otherwise healthy individuals who eat a balanced diet.  Moreover, recent prospective, randomized, placebo-controlled clinical studies have actually suggested that taking supplements of Vitamin E and Vitamin A (including beta-carotene) may actually be harmful to our health, while recent similar studies of Vitamin C supplements have shown neither apparent benefit nor harm.

Despite the almost uniformly discouraging recent research findings regarding most nutritional supplements and their alleged ability to decrease our risk of cancer and other serious illnesses, many people (as well as nutritional supplement manufacturers…) continue to hold out hope that popping a daily vitamin pill, or other nutritional supplement, will protect them from cancer and other dreaded diseases.  (Meanwhile, most people still tend to ignore the evidence-based cancer prevention lifestyle and diet practices that I describe in A Cancer Prevention Guide for the Human Race, and which have been linked, by hundreds of reputable clinical research studies, with a 40 to 60 percent reduction in cancer risk.)  So, it is not surprising to see the extensive and favorable media coverage that is being given to a newly published clinical study looking at the potential impact of daily multivitamin supplements and cancer risk, and which appears in the current issue of the Journal of the American Medical Association.

The Physicians’ Health Study II is a large, ongoing, prospective, randomized, placebo-controlled study of 14,641 male physicians in the United States.  All of these men were at least 50 years of age when they entered into this public health study (the average age of all study participants when they entered into this study was 64 years of age).  This study has observed health outcomes in this very large group of male physicians for an average of 11 years now, and the study’s authors have now reported on the impact of taking a daily commercial multivitamin supplement upon cancer risk and cancer-associated death rates.

To summarize the findings of this very large public health study, the male physicians in this study were secretly randomized to receive either Centrum Silver (a commercial multivitamin and mineral supplement) or a placebo (sugar) pill.  At the time of their entry into this study, 1,312 of these male volunteers were noted to have a prior personal history of cancer.  Following more than 11 years of observation, 2,669 of these physician volunteers were subsequently confirmed to have developed cancer, including 1,373 cases of prostate cancer and 210 cases of colorectal cancer.  When compared with the men who were randomly (and secretly) assigned to the placebo group, the men who were assigned to the multivitamin supplement group experienced an observed, and modest (8 percent), but still significant, reduction in the risk of being diagnosed with cancer.

While this 8 percent reduction in overall cancer risk has been widely trumpeted by other media sites, it is important to note several significant caveats before you run out to the drugstore and buy a case of Centrum Silver.  When one looks at the statistical analysis of the data that resulted in the claimed 8 percent reduction in cancer risk, one immediately notices that the so-called “confidence interval” for this claim extends to 0.998, which is right up against the limit of 1.0 that would render these findings statistically insignificant.  Therefore, the single, sole positive finding in this study of a modest decrease in overall cancer incidence is, itself, at the very borderline of what most statisticians would consider to be a statistically significant finding.

In addition to the single modest (and only barely statistically significant) positive finding of this study, as I have noted above, there was no significant correlation between multivitamin use and the risk of developing prostate cancer, colorectal cancer, or, indeed, any other individual type of cancer.  The absence of any identifiable decrease in the risk of any individual type of cancer in this study, likewise, further calls into question the validity of this study’s single, and statistically borderline, positive finding of an 8 percent reduction in overall cancer incidence among the group of men who were randomized to receive a daily multivitamin tablet.  Moreover, this study also failed to reveal any detectable reduction in the cancer-associated death rate among the men who received a daily multivitamin tablet.

The rather breathlessly favorable media reaction to this study’s conclusions vividly illustrates how the superficial reporting of seemingly favorable clinical research findings can mislead the public into accepting overblown or invalid conclusions, such as those made by the authors of this particular research study.  As I discuss in A Cancer Prevention Guide for the Human Race, most of the published research in the area of cancer prevention research is of relatively low quality in terms of the methods used to conduct such research.  Moreover, as this particular prospective, randomized, placebo-controlled study shows, even clinical studies that actually utilize higher level methodologies still require both a careful and critical analysis of their findings and claims, and the conclusions of such studies should not be simply accepted at face value.  While this multivitamin study makes the very simple and straightforward claim that taking a commercial multivitamin and mineral supplement “significantly” reduces the incidence of cancer (at least among middle-aged and elderly male physicians), even a cursory evaluation of this study’s data and conclusions confirms that there is likely to be little or no overall health benefit, in terms of cancer risk and cancer-related death reduction, associated with taking a daily multivitamin and mineral supplement in otherwise healthy and well-nourished adults.  As the old saying goes, if something seems too good to true, it probably isn’t…..


A Cancer Prevention Guide for the Human Race is now available in both printed and digital formats from all major bookstores.  Get your copy now, and begin living an evidence-based cancer prevention lifestyle now!

 

Dr. Wascher’s latest video:

Dark as Night, Part 1

Dark as Night, Part 1

Dark as Night, Part 1



At this time, more than 8 percent of Americans are unemployed.  According to the Bureau of Labor Statistics, however, the unemployment rate for veterans who served on active duty between September 2001 and December 2011 is now more than 12 percent.  A new website, Veterans in Healthcare, seeks to connect veterans with potential employers.  If you are a veteran who works in the healthcare field, or if you are an employer who is looking for physicians, advanced practice professionals, nurses, corpsmen/medics, or other healthcare professionals, then please take a look at Veterans in Healthcare. As a retired veteran of the U.S. Army, I would also like to personally urge you to hire a veteran whenever possible.


For a groundbreaking overview of cancer risks, and evidence-based strategies to reduce your risk of developing cancer, order your copy of my bestselling book, “A Cancer Prevention Guide for the Human Race,” from AmazonBarnes & NobleBooks-A-MillionVroman’s Bookstore, and other fine bookstores!

Within one week of publication, A Cancer Prevention Guide for the Human Race was ranked #6 among all cancer-related books on the Amazon.com “Top 100 Bestseller’s List” for Kindle e-books. Within three months of publication, A Cancer Prevention Guide for the Human Race was the #1 book on the Amazon.comTop 100 New Book Releases in Cancer” list.




Disclaimer:  As always, my advice to readers is to seek the advice of your physician before making any significant changes in medications, diet, or level of physical activity


 

Dr. Wascher is an oncologic surgeon, professor of surgery, cancer researcher, oncology consultant, and a widely published author


 

I and the staff of Weekly Health Update would again like to take this opportunity to thank the more than 100,000 health-conscious people from around the world who visit this premier global health information website every month.  (More than 1.3 million pages of high-quality medical research findings were served to the worldwide audience of health-conscious people who visited Weekly Health Update in 2011!)  As always, we enjoy receiving your stimulating feedback and questions, and I will continue to try and personally answer as many of your inquiries as I possibly can.


 




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