Wednesday, November 7, 2012

New way to Reduce Bad and Total Cholesterol (Probiotic)

New way to Reduce Bad and Total Cholesterol (Probiotic)

Before we see this new research report let us see what are Probiotic and Bad and good Cholesterol.

What are Probiotic?

They are new health miracles called probiotics. They claim to help with health problems, ranging from constipation to diarrhea, and prevent colds or fight them once you already have one. Probiotics are showing up in foods, beverages, and supplements. What exactly are they, do they work, and are they safe for us to be consuming?


Let's start with the facts behind what probiotics are. The root of the word probiotic comes from the Greek word pro, meaning "promoting" and biotic, meaning "life." There is some debate about how to define probiotics. The Food and Agriculture Organization of the United Nations (FAO) defines probiotics as "live microorganisms, which, when administered in adequate amounts, confer a health benefit on the host." Yes, they are actually alive, and most of these microorganisms are bacteria. Most people think of antibiotics and antibacterial products when you mention bacteria. Both of those kill bacteria so why would you want to consume anything that has live bacteria in it? It's all about balance.

What foods contain probiotics?

Fermented dairy products have been advertised as containing "beneficial cultures." These cultures are what would now be considered probiotics. Other foods currently claiming to provide probiotics are cereal, juice, frozen yogurt, granola, candy bars, and cookies. While they may contain probiotics, there is no guarantee that they have them in the amount or in the form that is necessary to get the health benefits you are looking for. Only the manufacturer of the product can tell you if there are any studies to support their specific product.

What is Cholesterol?

Cholesterol is a lipid (fat) which is produced by the liver. Cholesterol is vital for normal body function. Every cell in our body has cholesterol in its outer layer.
Cholesterol is a waxy steroid and is transported in the blood plasma of all animals. It is the main sterol synthesized by animals - small amounts are also synthesized in plants and fungi. A sterol is a steroid sub-group.

What are the main functions of cholesterol?

It builds and maintains cell membranes (outer layer), it prevents crystallization of hydrocarbons in the membrane
It is essential for determining which molecules can pass into the cell and which cannot (cell membrane permeability)
It is involved in the production of sex hormones (androgens and estrogens)
It is essential for the production of hormones released by the adrenal glands (cortisol, corticosterone, aldosterone, and others)
It aids in the production of bile
It converts sunshine to vitamin D. Scientists from the Rockefeller University were surprised to find that taking vitamin D supplements do not seem to reduce the risk of cholesterol-related cardiovascular disease.
It is important for the metabolism of fat soluble vitamins, including vitamins A, D, E, and K
It insulates nerve fibers.

There are three main types of lipoproteins

Cholesterol is carried in the blood by molecules called lipoproteins. A lipoprotein is any complex or compound containing both lipid (fat) and protein. The three main types are:

LDL (low density lipoprotein)

 - people often refer to it as bad cholesterol. LDL carries cholesterol from the liver to cells.

HDL (high density lipoprotein)

 - people often refer to it as good cholesterol. Experts say HDL prevents arterial disease. HDL does the opposite of LDL - HDL takes the cholesterol away from the cells and back to the liver.

Triglycerides

 - these are the chemical forms in which most fat exists in the body, as well as in food. They are present in blood plasma. Triglycerides, in association with cholesterol, form the plasma lipids (blood fat). Triglycerides in plasma originate either from fats in our food, or are made in the body from other energy sources, such as carbohydrates. Calories we consume but are not used immediately by our tissues are converted into triglycerides and stored in fat cells. When your body needs energy and there is no food as an energy source, triglycerides will be released from fat cells and used as energy - hormones control this process.

What causes high cholesterol?

 

Lifestyle causes

Nutrition - although some foods contain cholesterol, such as eggs, kidneys, eggs and some seafoods, dietary cholesterol does not have much of an impact in human blood cholesterol levels. However, saturated fats do! Foods high in saturated fats include red meat, some pies, sausages, hard cheese, lard, pastry, cakes, most biscuits, and cream (there are many more).

Sedentary lifestyle - people who do not exercise and spend most of their time sitting/lying down have significantly higher levels of LDL (bad cholesterol) and lower levels of HDL (good cholesterol).
Bodyweight - people who are overweight/obese are much more likely to have higher LDL levels and lower HDL levels, compared to people who are of normal weight.
Smoking - this can have quite a considerable effect on LDL levels.
Alcohol - people who consume too much alcohol regularly, generally have much higher levels of LDL and much lower levels of HDL, compared to people who abstain or those who drink in moderation.

What are normal cholesterol levels?

 

Below is a list of cholesterol levels and how most doctors would categorize them in mg/dl (milligrams/deciliter) and 5mmol/liter (millimoles/liter).
Desirable - Less than 200 mg/dL
Borderline high - 200 to 239 mg/dL
High - 240 mg/dL and above
Optimum level: less than 5mmol/liter
Mildly high cholesterol level: between 5 to 6.4mmol/liter
Moderately high cholesterol level: between 6.5 to 7.8mmol/liter
Very high cholesterol level: above 7.8mmol/liter
 

New Research- How New Probiotic Helps in Lowering Bad and Total Cholesterol

 

I love to yogurt, so this means I am getting good dose of Probiotic in my diet.
Two daily doses of a probiotic lowered key cholesterol-bearing molecules in the blood as well as "bad" and total cholesterol, in a study presented at the American Heart Association's Scientific Sessions 2012. Probiotics are live microorganisms (naturally occurring bacteria in the gut) thought to have beneficial effects; common sources are yogurt or dietary supplements.
In previous studies, a formulation of the bacteria, known as Lactobacillus reuteri NCIMB 30242, has lowered blood levels of LDL or "bad" cholesterol. Such treatments are drawing increasing medical attention as researchers unravel how supplementing gut bacteria (microbiome) with probiotics can play a role in health and certain chronic diseases such as heart disease, said Mitchell L. Jones, M.D., Ph.D., lead author of the study and a research assistant in the Faculty of Medicine at McGill University in Montreal. Researchers investigated whether the same probiotic could lower LDL and reduce blood levels of cholesterol esters - molecules of cholesterol attached to fatty acids, a combination that accounts for most total blood cholesterol and has been tied to cardiovascular disease risk. Researchers tracked cholesterol esters bound to saturated fat, which have been linked to dangerous arterial plaque buildup and occur at higher levels in coronary artery disease patients. The study involved 127 adult patients with high cholesterol. About half the participants took L. reuteri NCIMB 30242 twice a day, while the rest were given placebo capsules. Those taking the probiotic had LDL levels 11.6 percent lower than those on placebo after nine weeks. Furthermore, cholesterol esters were reduced by 6.3 percent and cholesterol ester saturated fatty acids by 8.8 percent, compared with the placebo group.
For the first time, research shows that the probiotic formulation can reduce cholesterol esters "and in particular reduce the cholesterol esters associated with 'bad' saturated fatty acids in the blood," said Jones, co-founder and chief science officer of Micropharma, the company that formulated the probiotic. Furthermore, people taking the probiotic had total cholesterol reduced by 9.1 percent. HDL "good" cholesterol and blood triglycerides, a dangerous form of fat in the blood, were unchanged. Scientists have proposed that Lactobacillus bacteria alone may impact cholesterol levels in several ways, including breaking apart molecules known as bile salts. L. reuteri NCIMB 30242 was fermented and formulated to optimize its effect on cholesterol and bile salts.

Based on correlations between LDL reduction and bile measurements in the gut, the study results suggest the probiotic broke up bile salts, leading to reduced cholesterol absorption in the gut and less LDL. The probiotic worked at doses of just 200 milligrams a day, far lower than those for soluble fiber or other natural products used to reduce cholesterol. "Most dietary cholesterol management products require consumption between 2 to 25 grams a day," Jones said. Patients appear to tolerate the probiotic well and the probiotic strain L. reuteri has a long history of safe use, he said. Because of the small number of patients involved in the study, researchers aren't sure if the impact of the probiotic differs between men and women or among ethnic groups.

(Source-American Heart Association's Scientific Sessions 2012)

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