Although creatine offers an array of benefits, most people think of it simply as a supplement that bodybuilders and other athletes use to gain strength and muscle mass. Nothing could be further from the truth.
A substantial body of research has found that creatine may have a wide variety of uses. In fact, creatine is being studied as a supplement that may help with diseases affecting the neuromuscular system, such as muscular dystrophy (MD).
Recent studies suggest creatine may have therapeutic applications in aging populations for wasting syndromes, muscle atrophy, fatigue, gyrate atrophy, Parkinson's disease, Huntington's disease and other brain pathologies. Several studies have shown creatine can reduce cholesterol by up to 15% and it has been used to correct certain inborn errors of metabolism, such as in people born without the enzyme(s) responsible for making creatine.
Some studies have found that creatine may increase growth hormone production.
What is creatine?
Creatine is formed in the human body from the amino acids methionine, glycine and arginine. The average person's body contains approximately 120 grams of creatine stored as creatine phosphate. Certain foods such as beef, herring and salmon, are fairly high in creatine.
However, a person would have to eat pounds of these foods daily to equal what can be obtained in one teaspoon of powdered creatine.
Creatine is directly related to adenosine triphosphate (ATP). ATP is formed in the powerhouses of the cell, the mitochondria. ATP is often referred to as the "universal energy molecule" used by every cell in our bodies. An increase in oxidative stress coupled with a cell's inability to produce essential energy molecules such as ATP, is a hallmark of the aging cell and is found in many disease states.
Key factors in maintaining health are the ability to: (a) prevent mitochondrial damage to DNA caused by reactive oxygen species (ROS) and (b) prevent the decline in ATP synthesis, which reduces whole body ATP levels. It would appear that maintaining antioxidant status (in particular intra-cellular glutathione) and ATP levels are essential in fighting the aging process.
It is interesting to note that many of the most promising anti-aging nutrients such as CoQ10, NAD, acetyl-l-carnitine and lipoic acid are all taken to maintain the ability of the mitochondria to produce high energy compounds such as ATP and reduce oxidative stress.
The ability of a cell to do work is directly related to its ATP status and the health of the mitochondria. Heart tissue, neurons in the brain and other highly active tissues are very sensitive to this system. Even small changes in ATP can have profound effects on the tissues' ability to function properly.
Of all the nutritional supplements available to us currently, creatine appears to be the most effective for maintaining or raising ATP levels.
How does creatine work?
In a nutshell, creatine works to help generate energy. When ATP loses a phosphate molecule and becomes adenosine diphosphate (ADP), it must be converted back to ATP to produce energy. Creatine is stored in the human body as creatine phosphate (CP) also called phosphocreatine.
When ATP is depleted, it can be recharged by CP. That is, CP donates a phosphate molecule to the ADP, making it ATP again. An increased pool of CP means faster and greater recharging of ATP, which means more work can be performed.
This is why creatine has been so successful for athletes. For short-duration explosive sports, such as sprinting, weight lifting and other anaerobic endeavors, ATP is the energy system used.
To date, research has shown that ingesting creatine can increase the total body pool of CP which leads to greater generation of energy for anaerobic forms of exercise, such as weight training and sprinting. Other effects of creatine may be increases in protein synthesis and increased cell hydration.
Creatine has had spotty results in affecting performance in endurance sports such as swimming, rowing and long distance running, with some studies showing no positive effects on performance in endurance athletes.
Whether or not the failure of creatine to improve performance in endurance athletes was due to the nature of the sport or the design of the studies is still being debated.
Creatine can be found in the form of creatine monohydrate, creatine citrate, creatine phosphate, creatine-magnesium chelate and even liquid versions.
However, the vast majority of research to date showing creatine to have positive effects on pathologies, muscle mass and performance used the monohydrate form. Creatine monohydrate is over 90% absorbable. What follows is a review of some of the more interesting and promising research studies with creatine.
Creatine and neuromuscular diseases
One of the most promising areas of research with creatine is its effect on neuromuscular diseases such as MD. One study looked at the safety and efficacy of creatine monohydrate in various types of muscular dystrophies using a double blind, crossover trial.
Thirty-six patients (12 patients with facioscapulohumeral dystrophy, 10 patients with Becker dystrophy, eight patients with Duchenne dystrophy and six patients with sarcoglycan-deficient limb girdle muscular dystrophy) were randomized to receive creatine or placebo for eight weeks.
The researchers found there was a "mild but significant improvement" in muscle strength in all groups. The study also found a general improvement in the patients' daily-life activities as demonstrated by improved scores in the Medical Research Council scales and the Neuromuscular Symptom scale. Creatine was well tolerated throughout the study period, according to the researchers.1
Another group of researchers fed creatine monohydrate to people with neuromuscular disease at 10 grams per day for five days, then reduced the dose to 5 grams per day for five days.
The first study used 81 people and was followed by a single-blinded study of 21 people.
In both studies, body weight, handgrip, dorsiflexion and knee extensor strength were measured before and after treatment. The researchers found "Creatine administration increased all measured indices in both studies." Short-term creatine monohydrate increased high-intensity strength significantly in patients with neuromuscular disease.2
There have also been many clinical observations by physicians that creatine improves the strength, functionality and symptomology of people with various diseases of the neuromuscular system.
Creatine and neurological protection/brain injury
If there is one place creatine really shines, it's in protecting the brain from various forms of neurological injury and stress. A growing number of studies have found that creatine can protect the brain from neurotoxic agents, certain forms of injury and other insults.
Several in vitro studies found that neurons exposed to either glutamate or beta-amyloid (both highly toxic to neurons and involved in various neurological diseases) were protected when exposed to creatine.3 The researchers hypothesized that "? cells supplemented with the precursor creatine make more phosphocreatine (PCr) and create larger energy reserves with consequent neuroprotection against stressors."
More recent studies, in vitro and in vivo in animals, have found creatine to be highly neuroprotective against other neurotoxic agents such as N-methyl-D-aspartate (NMDA) and malonate.4 Another study found that feeding rats creatine helped protect them against tetrahydropyridine (MPTP), which produces parkinsonism in animals through impaired energy production.
The results were impressive enough for these researchers to conclude, "These results further implicate metabolic dysfunction in MPTP neurotoxicity and suggest a novel therapeutic approach, which may have applicability in Parkinson's disease."5 Other studies have found creatine protected neurons from ischemic (low oxygen) damage as is often seen after strokes or injuries.6
Yet more studies have found creatine may play a therapeutic and or protective role in Huntington's disease7, 8 as well as ALS (amyotrophic lateral sclerosis).9 This study found that "? oral administration of creatine produced a dose-dependent improvement in motor performance and extended survival in G93A transgenic mice, and it protected mice from loss of both motor neurons and substantia nigra neurons at 120 days of age.
Creatine administration protected G93A transgenic mice from increases in biochemical indices of oxidative damage. Therefore, creatine administration may be a new therapeutic strategy for ALS." Amazingly, this is only the tip of the iceberg showing creatine may have therapeutic uses for a wide range of neurological disease as well as injuries to the brain.
One researcher who has looked at the effects of creatine commented, "This food supplement may provide clues to the mechanisms responsible for neuronal loss after traumatic brain injury and may find use as a neuroprotective agent against acute and delayed neurodegenerative processes."
Creatine and heart function
Because it is known that heart cells are dependent on adequate levels of ATP to function properly, and that cardiac creatine levels are depressed in chronic heart failure, researchers have looked at supplemental creatine to improve heart function and overall symptomology in certain forms of heart disease.
It is well known that people suffering from chronic heart failure have limited endurance, strength and tire easily, which greatly limits their ability to function in everyday life. Using a double blind, placebo-controlled design, 17 patients aged 43 to 70 years with an ejection fraction
best cleaning company Lincolnshire ..There is a secret vitamin in the neighborhood, wandering around... Read More
Ideally, humans would eat wholly nutritious diets rich in protein,... Read More
The mankind has never stopped searching for the scerets of... Read More
At the present time, one out of ten adults have... Read More
Herbal supplements have become hugely popular over the years, and... Read More
Herbal Supplement ? what is it?So what is an herbal... Read More
At the moment we are in the grip of an... Read More
Nutrients form the basis for your body, emotional and spiritual... Read More
Don't be overwhelmed by this big word, ... Read More
Vision is one of our most precious senses. Without it... Read More
Over the past few years, Coral Calcium has received a... Read More
Since the 1960???s there have been numerous controlled clinical trials... Read More
Glyconutrients- the latest development in the health industry. What are... Read More
Our system uses a free-form gas called Nitric Oxide as... Read More
As I have become more involved in using functional nutritional... Read More
Can you treat a headache or stomach ache externally, without... Read More
No Money in PreventionI have been recommending a wide variety... Read More
As consumers, we are faced daily with choices about what... Read More
While HA has dramatically increased in popularity and use within... Read More
Flavones are the latest big supplement to hit the market.... Read More
Not All Supplements are Created Equal. There are more supplements... Read More
Since ancient time bee pollen has been considered as an... Read More
The multi-vitamin market is rich with choice. It's also very... Read More
The food is the raw material for the body. Minerals... Read More
ZMA is a scientifically designed anabolic mineral formula containing zinc... Read More
on demand house cleaning Lake Forest ..Aging, a steady declineThe History of the world is filled... Read More
One of the questions that I frequently get asked is... Read More
Vitamins and minerals play a major role in becoming healthy... Read More
It seems today that for every mood swing, inconvenient behavior,... Read More
AMLA ( EMBLICA OFFICINALIS ) FOR HEALTH AND BEAUTYAMLA, proudly... Read More
I finally bought the stuff. I couldn't resist anymore. After... Read More
Since coral calcium is one of he hottest products on... Read More
Herbal nutrition supplements are everywhere these days. So should you... Read More
Can you treat a headache or stomach ache externally, without... Read More
The muscles of the body actually depend heavily on the... Read More
As with most nutrients and minerals, zinc is often ignored... Read More
Minerals are essential nutrients that serve the body in many... Read More
Creatine ? The most researched performance enhancing nutritional supplementDoes creatine... Read More
No Money in PreventionI have been recommending a wide variety... Read More
When it comes to personalized weight loss programs and their... Read More
Carbohydrate blockers seem to have come and gone with the... Read More
Hyaluronic acid, a key component of human tissue, aiding the... Read More
VITAMINS:Vitamins are major for Healthy life. Vitamin D may reduce... Read More
Chromium picolinate supplement combines the essential trace mineral Chromium with... Read More
Currently, there are no known side effects for most hyaluronic... Read More
1. Do not refrigerate vegetables and fruits (raw and uncut)... Read More
Are the new Argireline Wrinkle Relaxing Creams as effective as... Read More
In part one of this series, titled "Take Back Your... Read More
Liquid vitaminsHardly does a day pass without the liquid vitamins... Read More
Haven't heard of fucose? Think it's the latest teen dance... Read More
Nutritional Supplements |