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Sunday, 1 December 2013

Angina pectoris - The Antioxidants

Angina pectoris, also known as Angina, a symptoms of  Ischemic heart disease, is defined as a condition of chest pain caused by poor blood flow through the blood vessels due to obstruction or spasm of the coronary arteries resulting of lack of blood that lead to lack of oxygen supply and waste removal. 
Preventions
Antioxidants to prevent angina
1. Nitric oxide (NO)
Nitric oxide (NO), one of the antioxidant and peroxynitrite can inhibit pathways of oxygen radical generation, and, in turn, oxidants can inhibit NO synthesis from NOS.

2. Glutathione and vitamin E
Reduced form of glutathione may act as a first line of defense against oxidative stress during ischemia–reperfusion while vitamin E may act later on during severe oxidative stress by rendering resistance to the heart against the ischemic–reperfusion injury

3. 2-dithiole-3-thione (D3T)
Researcher found that in rat cardiac H9c2 cells, D3T and time-dependent induction of a number of cellular antioxidants and phase 2 enzymes, including catalase, reduced glutathione (GSH), GSH peroxidase, glutathione reductase (GR), GSH S-transferase (GST), and NADH:quinone oxidoreduc- tase-1 (NQO1) help to protect against H9c2 cell injury caused by various oxidants and simulated ischemia-reperfusion. D3T pretreatment also resulted in decreased intracellular accumulation of reactive oxygen in H9c2 cells after exposure to the oxidants as well as simulated ischemia-reperfusion.

4. Selenium
Deficiency of of a co-enzyme selenium, which is required in maintaining the glutathione redox cycle, also promote more susceptible to oxidative injure.

5. Etc.