Posts Tagged ‘Alzheimer’s disease’

Aloe Vera Juice

Thursday December 17, 2009
Aloe Vera
Aloe Vera

You have perhaps already heard about the benefits of aloe vera when applied topically. You could also benefit from its innumerable medicinal properties if you consume aloe vera in the form of juice, pills or capsules. One of the very popular uses of aloe vera is in the form of aloe vera juice, benefits of which seems endless and has spread far and wide in terms of popularity. But how is it made? Essentially aloe vera juice is made from its gel. A regular use of 2 to 4 ounces of aloe vera juice taken twice in a day can boost your immune system and keep you in good health.

In case you are wondering why you should take aloe vera juice, here are some of the key aloe vera juice benefits:

  • While on one hand it can be used as a detoxifying agent, you could also use it as a regular colon cleanser. The juice of this wonderful herb can help in purification of blood.
  • Aloe vera juice can be used to heal burns and wounds. Because of its anti inflammatory properties, aloe vera juice is an effective calmative that soothes the affected area as well as reduces swelling, redness and offers sustainable pain relief.
  • With regard to wound healing, aloe vera juice exerts its strong anti bacterial properties and does not allow any infection to affect the wound.
  • Drinking aloe vera juice can alleviate several gastro-intestinal problems including healing of ulcers, irregular bowel clearance, irritable bowel syndrome and more.
  • Aloe vera juice can be applied on an itchy scalp or to treat chronic skin disorders. (more…)

The Antioxidant Process

Saturday November 28, 2009

Antioxidants block the process of oxidation by neutralizing free radicals. In doing so, the antioxidants themselves become oxidized. That is why there is a constant need to replenish our antioxidant resources.

How they work can be classified in one of two ways:

  • Chain-breaking – When a free radical releases or steals an electron, a second radical is formed. This molecule then turns around and does the same thing to a third molecule, continuing to generate more unstable products. The process continues until termination occurs — either the radical is stabilized by a chain-breaking antioxidant such as beta-carotene and vitamins C and E, or it simply decays into a harmless product.
  • Preventive – Antioxidant enzymes like superoxide dismutase, catalase and glutathione peroxidase prevent oxidation by reducing the rate of chain initiation. That is, by scavenging initiating radicals, such antioxidants can thwart an oxidation chain from ever setting in motion. They can also prevent oxidation by stabilizing transition metal radicals such as copper and iron.

The effectiveness of any given antioxidant in the body depends on which free radical is involved, how and where it is generated, and where the target of damage is. Thus, while in one particular system an antioxidant may protect against free radicals, in other systems it could have no effect at all. Or, in certain circumstances, an antioxidant may even act as a “pro-oxidant” that generates toxic oxygen species.

Types of Antioxidants

What Are Antioxidants?

Saturday November 28, 2009

As the name implies, antioxidants are substances that are capable of counteracting the damaging, but normal, effects of the physiological process of oxidation in animal tissue. Antioxidants are nutrients (vitamins and minerals) as well as enzymes (proteins in your body that assist in chemical reactions). They are believed to play a role in preventing the development of such chronic diseases as cancer, heart disease, stroke, Alzheimer’s disease, Rheumatoid arthritis, and cataracts.

Oxidative stress occurs when the production of harmful molecules called free radicals is beyond the protective capability of the antioxidant defenses. Free radicals are chemically active atoms or molecular fragments that have a charge due to an excess or deficient number of electrons. Examples of free radicals are the superoxide anion, hydroxyl radical, transition metals such as iron and copper, nitric acid, and ozone. Free radicals containing oxygen, known as reactive oxygen species (ROS), are the most biologically significant free radicals. ROS include the radicals superoxide and hydroxyl radical, plus derivatives of oxygen that do not contain unpaired electrons, such as hydrogen peroxide, singlet oxygen, and hypochlorous acid.

Because they have one or more unpaired electrons, free radicals are highly unstable. They scavenge your body to grab or donate electrons, thereby damaging cells, proteins, and DNA (genetic material). The same oxidative process also causes oils to become rancid, peeled apples to turn brown, and iron to rust.

It is impossible for us to avoid damage by free radicals. Free radicals arise from sources both inside (endogenous) and outside (exogenous) our bodies. Oxidants that develop from processes within our bodies form as a result of normal aerobic respiration, metabolism, and inflammation. Exogenous free radicals form from environmental factors such as pollution, sunlight, strenuous exercise, X-rays, smoking and alcohol. Our antioxidant systems are not perfect, so as we age, cell parts damaged by oxidation accumulate.

The Antioxidant Process

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