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Meta-analysis associates probiotic supplementation with lower cholesterol

Tuesday, October 27, 2015

The results of a meta-analysis published on October 16, 2015 in the journal PLOS One affirm an association between probiotic supplementation and a reduction in total and low-density lipoprotein (LDL) cholesterol in humans.

Researchers at Tokyo's Kelo University selected 11 randomized trials that analyzed serum lipids among males and females with or without elevated cholesterol who consumed probiotics. Strains used in the studies included L. helveticus, L. fermentum, L. Bulgaricus, S. thermophilus, L. acidophilus, L. reuteri and other probiotic bacteria consumed as capsules or in fermented milk products.

Probiotic use was associated with an average 6.56 milligram per deciliter (mg/dL) reduction in total cholesterol and an 8.49 mg/dL decrease in LDL cholesterol. Use of probiotics for longer than four weeks was more effective at reducing total and LDL cholesterol in comparison with shorter term use, and decreases were greater among those with mildly elevated cholesterol.

"Our results showed that probiotic intervention led to statistically significant reductions in LDL cholesterol and total cholesterol levels in hypercholesterolemic patients, which were greater than in normocholesterolemic study participants," authors Mikiko Shimizu and colleagues conclude. "The decrease in LDL cholesterol levels after probiotic intervention in hypercholesterolemic patients would lead to an approximately 8% reduction in major cardiovascular events."

"Probiotic supplementation (fermented milk products and probiotic preparations) could be useful in the primary prevention of hypercholesterolemia and may lead to reductions in risk factors for cardiovascular disease," they conclude.

 
What's Hot
Metformin use associated with lower LDL cholesterol
What's Hot  
 

The October, 2015 issue of the American Diabetes Association journal Diabetes Care featured an article which reveals a reduction in low-density lipoprotein (LDL) cholesterol levels among users of metformin, a commonly used antidiabetic drug that has been associated with other health benefits.

Rui Wang-Sattler of Helmholtz Zentrum München and colleagues utilized fasting serum samples collected from over 1,800 subjects, including 151 type 2 diabetics treated with metformin, enrolled in the Health Research in the Region of Augsburg (KORA) cohort. The current study evaluated genetic factors and 131 metabolites, as well as serum lipids.

In association with a decline in three metabolites, the researchers observed a relationship between metformin use and lower LDL cholesterol in type 2 diabetics treated with the drug in comparison with those who were not using oral glucose-lowering medications. "We speculate that metformin intake affects the levels of LDL cholesterol via AMPK, leading to a down-regulation of the genes FADS1 and 2," stated Dr Wang-Sattler, of the Research Unit of Molecular Epidemiology at the Institute of Epidemiology II of the Helmholtz Zentrum München.. "This is also supported by the fact that three lipid metabolites, which are dependent on FADS, are decreased. Presumably, this is the mechanism how the production of LDL cholesterol is repressed by metformin."

"Our study suggests that metformin might indeed have an additional beneficial effect with regards to cardiovascular diseases among the diabetes patients," first author Tao Xu concluded.

 
Life Extension Clinical Research Update
Effects of Nutritional Supplements on Cognition, Mood, and Fatigue

Life Extension is sponsoring a study to assess the effects of nutritional supplements in support of cognition, mood and fatigue in individuals with memory complaints, an altered mood and/or feelings of fatigue within the past six months.

If you or someone you know is:

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  • In good health
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  • Currently drinking no more than one cup of coffee a day
  • Able to comply with all study procedures and visits
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https://www.lifeextension.com/clinicalresearch/ClinicalTrials.htm

Highlight

Life Extension Magazine® November 2015 Interactive Issue

Life Extension Magazine® E-Issue Now Online

Reports

On the cover: AMPK and aging, by Raegan Linton

Boron reduces prostate cancer risk, by Michael Downey

How to obtain optimal benefits from selenium, by Alice Langstrom

The link between vitamin C and optimal immunity, by Chad Robertson

How to improve your odds of successful cataract surgery, by Kenneth J. Absher, DO, BCCN

Novel strategy to restore youthful facial contour, by Robert Goldfaden and Gary Goldfaden, MD

The Microbiome of Aging and Age-Related Disease conference, by Ben Best

Departments

As we see it: "To Grow Old Without Disease", by William Faloon

In the news

Wellness profile: Dr Vladimir Turovskiy, at the forefront of integrative medicine

 

Health Concern

Cholesterol management

There are several nutrients that have been identified as potential agents for promoting a favorable lipid profile; many of them work by the same principles as conventional therapies (such as reducing cholesterol synthesis, or interfering with cholesterol absorption in the gut). Several also have additional activities (antihypertensive, inhibition of LDL-oxidation, anti-inflammatory) that complement their cholesterol-lowering activity and lend to their overall reductions in fatal and non-fatal cardiovascular events.

Indian gooseberry (Amla; Emblica officinalis) has been used traditionally as a nutrient-dense food in Indian regions, and in Ayurvedic medicine for treating a variety of conditions. Modern scientific inquiry has revealed considerable evidence in support of the medicinal use of this nutritional powerhouse. Analytical studies on extracts of Indian gooseberry highlight its potent antioxidant properties; animal studies carry these findings forward by showing that orally administered amla extract significantly reduce levels of oxidized LDL. In human studies, extracts of amla have been shown to attenuate elevations in LDL, total cholesterol, and triglycerides, and boost levels of protective HDL.

Prebiotics, a subset of soluble fiber, have gained attention in recent years in their ability to be selectively fermented by gut flora for a diversity of potential health-promoting benefits. The fermentation of prebiotic fibers into short-chain fatty acids such as acetate, butyrate, or propionate may inhibit cholesterol synthesis in the liver.

Read More
 

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Probiotics Provide Anti-Aging Defense

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