coenzyme Q10

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coenzyme Q10

A factor present in mitochondria which extracts energy from foods. It has acquired a reputation among fringe nutritionists as being effective in detoxifying patients with an overdose of environmental pollutants; it is also claimed to be beneficial in treating hypertension, obesity, periodontal disease, preventing cancer, increasing longevity and revitalising the immune system.


(ko-en'zim?) [ co- + enzyme]
An enzyme activator; a diffusible, heat-stable substance of low molecular weight that, when combined with an inactive protein called apoenzyme, forms an active compound or a complete enzyme called a holoenzyme (e.g., adenylic acid, riboflavin, and coenzymes I and II).

coenzyme A

A derivative of pantothenic acid, important as a carrier molecule for acetyl groups in many reactions including the Krebs cycle (tricarboxylic acid cycle) and the oxidation of fatty acids.

coenzyme Q

A dietary supplement promoted by alternative medicine practitioners as an antioxidant and as a treatment for gingivitis and heart diseases.

coenzyme Q10


coenzyme Q10

also known as ubiquinone, a non-essential lipid-soluble nutrient found predominantly in animal foods and at low levels in plant foods. In the body it is located primarily in the mitochondria, especially in skeletal and cardiac muscle. As a component of the electron transport chain, it is important for ATP formation. It is also believed to have an antioxidant function, protecting DNA and cell membranes from oxidative damage. For athletes, coenzyme Q10 supplements are claimed to enhance energy production through the electron transport chain, and to reduce the oxidative damage of exercise. Research does not support the claim, reporting either no effect or in some cases an ergolytic rather than ergogenic effect. See also ergogenic aids; appendix 4.4 .

coenzyme Q,

n an enzyme along the electron transport chain. Scientific name: 2,3 dimethoxy-5 methyl-6-decaprenyl benzoquinone; uses: heart disease—including ischemic heart disease, dysrhythmias, congestive heart failure, hypertension, angina pectoris, mitral valve prolapse—diabetes, infertility, Bell's palsy, periodontal disease; precautions: pregnancy, lactation, children; can cause nausea, diarrhea, epigastric pain. Also called
Co-Q10, mitoquinone, ubidecarenone, and
References in periodicals archive ?
Simply Right[TM] - Co Q-10 Softgels (100 mg; 180 ct.
Taking a Co Q-10 supplement can strengthen the immune system and help fight off infection.
In normal ageing, levels of Co Q-10 can decline by as much as 80 per cent - but these decreased levels may lead to age-related discomforts.
The richest concentrations of Co Q-10 are in the heart so supplying the body with sufficient amounts of the nutrient should help prevent heart and circulation problems.
Approximately 75 per cent of heart patients are found to be deficient in Co Q-10.
Along with ageing, other factors may deplete the body of Co Q-10, affecting the body's ability to manufacture adequate amounts and increasing the risk of deficiency.
Poor eating habits, stress, illnesses and infections can reduce the amount of Co Q-10 in our system.
Because high concentrations are also stored in the liver, maintaining an adequate supply of Co Q-10 and preventing a deficiency can help improve your liver function.
Algae and pullulan help tighten and firm the skin, while CO Q-10 Complex provides antioxidant protection.