| free radical |
an atom or molecule which has at least one electron which is not paired with another electron.
출처: www.pslc.ws/macrog/kidsmac/glossary.htm
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| free radical |
Highly toxic molecules capable of causing damage in brain and other tissue. Free radicals are common by-products of normal chemical reactions occurring in the body, and are believed to accelerate the progression of age-related and other diseases.
출처: naam-alzheimers.lle.org/Glossary.htm
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| free radical |
A molecule that can cause oxidative damage to a cell or tissue. Antioxidants are used to destroy free radicals.
출처: www.blindness.org/research/glossary.asp
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| free radical |
An unstable compound that can damage healthy cells. Creating free radicals is a normal part of cell function, but systems are also in place to neutralize free radicals before they cause damage.
출처: www.welchs.com/healthy/glossary.html
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| free radical |
An atom or group of atoms with one or more impaired electron. Free radicals are very damaging to DNA and proteins and to the fat in cell membranes where a free radical chain reaction can be started. Antioxidants such as vitamin E and C, selenium, zinc, copper and manganese usually neutralise these free radicals. However, if too many are produced they can cause degenerative diseases such as heart disease and cancer. ...
출처: www.lucyburney.co.uk/glossary/
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