adult dating personals feeds - Radicals and antioxidants updating a personal view
The OS effects depend on the intensity of such abnormalities and the cellular response.If the cell is unable to overcome and to recover its function, the exogenous and endogenous AOX defenses cannot counter it, and the cell can become extinct (Figure 2).
A free radical (FR) is an atom or molecule that contains an unpaired electron in its outer orbital.
This situation confers them instability and the need to lose/gain an electron in order to get stable.
All cell membranes are rich in polyunsaturated fatty acids (PUFAs), which are easily injured by oxidizing agents.
There are endogenous and exogenous defense mechanisms against oxidative attack.
All these oxidative and AOX activities can be assayed on various ophthalmological samples, including aqueous humor, vitreous body, and tear biopsies, and in the blood, urine, or saliva.