ثيرد يتكلم عن الجذور الحرة وكيف تتكون في اجسامنا وممكن تؤدي الضرر في خلايا الجسم الصحية و تحويلها الى خلايا سرطانية، وفي المقابل كيف الجسم يواجه الجذور الحرة عن طريق مضدات الاكسدة لمنع الاثار الضارة الي تحدث بسبب الجذور الحرة 🥼🧬🖇@bioc4all @basimbyg2 @happyrealist95
Free radicals and antioxidants 🧬🥼
•What are free radicals?
•Types of free radicals.
•Properties of free radicals.
•Reactive Oxygen Species (ROS)
•Antioxidant.
•What are free radicals?
•Types of free radicals.
•Properties of free radicals.
•Reactive Oxygen Species (ROS)
•Antioxidant.
Free Radical 🤔
Any molecule containing one or more unpaired electrons.These unpaired electrons readily form free radical molecules which are chemically reactive and highly unstable.
Any molecule containing one or more unpaired electrons.These unpaired electrons readily form free radical molecules which are chemically reactive and highly unstable.
Types of free radicals.
•Superoxide, O2-
•Hydrogen peroxide, H2O2
•Hydroxyl radical, OH-
•Singlet oxygen, 1O2
•Hydroperoxy radical, HOO-
•Lipid peroxide radical, ROO-
•Nitric oxide, NO-
•peroxynitrite, ONOO-
•Superoxide, O2-
•Hydrogen peroxide, H2O2
•Hydroxyl radical, OH-
•Singlet oxygen, 1O2
•Hydroperoxy radical, HOO-
•Lipid peroxide radical, ROO-
•Nitric oxide, NO-
•peroxynitrite, ONOO-
Cause and Properties of free radicals🧬
1. Highly reactive
2.Very short half-life
3. Generate new radicals by chain reaction
4.Cause damage to biomolecules, cells and tissues.
1. Highly reactive
2.Very short half-life
3. Generate new radicals by chain reaction
4.Cause damage to biomolecules, cells and tissues.
Most free radicals in biological systems are derivatives of oxygen (Reactive Oxygen Species, ROS).
Reactive Oxygen Species (ROS).
•Superoxide (O2-)
•Hydrogen Peroxide (H2O2)
•Hydroxyl Radical (OH)
•Singlet oxygen, (1O2)
•Superoxide (O2-)
•Hydrogen Peroxide (H2O2)
•Hydroxyl Radical (OH)
•Singlet oxygen, (1O2)
Antioxidants are man-made or natural substances that may prevent or delay some types of cell damage.
Antioxidants 💪🏼
Prevents the transfer of electron from O2 to organic molecules.
Stabilizes free radicals.
Terminates free radical reactions.
They can help repair damage already sustained by cells
Prevents the transfer of electron from O2 to organic molecules.
Stabilizes free radicals.
Terminates free radical reactions.
They can help repair damage already sustained by cells
Sources 🍊🥝💪🏼
What should you do? Countering the Harmful Effects of F.R ❌
•Don’t smoke .
•Don't overdo your exposure to the sun.
•Don’t consume foods containing trans fats or hydrogenated oils.
•Do consume antioxidant rich foods and use a good antioxidan.
•Keep your stress levels down.
•Don’t smoke .
•Don't overdo your exposure to the sun.
•Don’t consume foods containing trans fats or hydrogenated oils.
•Do consume antioxidant rich foods and use a good antioxidan.
•Keep your stress levels down.
The end of the theard 🧬💪🏼
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