|
Every person with diabetes understands what blood sugar control
is. Most diabetics know about complications. Yet only a handful
are familiar with oxidative stress. In research studies, oxidative
stress is causally linked to both blood sugar levels and complications.
That’s why knowing what oxidative stress is, what causes
the condition, and what treatments can be used in combating
it are vital.
Oxidative Stress and Diabetes
The effect oxidative stress (OS) has in diabetes has been,
and continues to be, the object of substantial clinical investigation.
It has been well established that oxidative stress in the cells
of peripheral nerves leads to diabetic complications like neuropathy.
And the OS begins long before the neuropathic symptoms of pain,
burning, and numbness appear. Equally significant is how OS
affects blood sugar levels. It has been shown that OS can reduce
insulin sensitivity and damage the insulin-producing cells
in the pancreas.
What Is Oxidative Stress?
Oxidative stress (OS) is the term used to describe the damage
to a cell, tissue, or organ caused by reactive oxygen species
(ROS) such as free radicals. You see examples of oxidative
stress in everyday life. Apples turn brown. Iron rusts. All
caused by free radical molecules during the interaction of
oxygen with a cell.
What Causes Oxidative Stress?
Oxidative stress is caused by free radicals (see chart below).
The human body is exposed to free radicals from outside the
body (exogenous) and inside the body (endogenous). Examples
of exogenous free radicals are smog, cigarette smoke, radiation,
consumption of excessive amounts of alcohol, and even sunlight.
But the most profuse amount of free radicals humans are exposed
to comes from within. Your cells need oxygen to generate the
energy they need to function properly. In a process known as
mitochondrial respiration, the mitochondria in your cells take
in oxygen, burn it, and release energy. Every breath you take
in “feeds” this energy machine. But during the
process, electrons get “fumbled” and free radicals
are produced. Oxidative stress occurs when free radical production
exceeds your body’s ability to neutralize them. This
imbalance happens for one of two reasons: 1) When your antioxidant
production is diminished or 2) when the free radicals are produced
in excess. Conditions such as diabetes, or the aging process
itself, can lead to accelerated production of these endogenous
free radicals and diminished antioxidant defense. The good
news is, today there are effective treatments in combating
free radicals and preventing and reversing oxidative stress.
 |
| Free Radicals and Oxidative Stress:
Free radicals attack normal cells causing damage known as oxidative stress. Over
time, the build up of oxidative stress can lead to insulin
resistance and diabetic neuropathy. |
How Alpha-Lipoic Acid Combats Oxidative Stress
Alpha-lipoic acid (ALA) has been used in Germany for over
30 years for the treatment of diabetic neuropathy. In the United
States, it is being clinically developed for the same indications.
Two recent published works (see Clinical Trials) demonstrate
ALA’s remarkable efficacy:
But how does alpha-lipoic acid work to combat oxidative stress?
ALA as Potent Antioxidant
Antioxidants neutralize free radicals. Alpha-lipoic acid is
a very potent antioxidant. It gains access to both water-soluble
and lipid-soluble cell membranes. ALA can enter the mitochondria
and neutralize a free radical quickly. What’s more, ALA
is able to regenerate and recycle the body’s own antioxidant
vitamins C, E, and CoQ10 - helping to further reduce free radicals.
Most importantly, ALA elevates intracellular levels of glutathione
- the body’s natural cell detoxifier. That’s how
ALA is believed to prevent further oxidative stress. Current
scientific thinking suggests that by preventing additional
oxidative stress, ALA gives the cells the power to heal themselves.
Perhaps that’s why users of Glucotize who have neuropathy
have reported gaining the feeling back.
ALA as Insulin Sensitizer
Studies show that Glucotize increases insulin sensitivity
and glucose disposal. Studies point to two mechanical actions
that may explain this phenomenon. The first states that because
oxidative stress impairs the body’s ability to utilize
glucose, ALA’s ability to reduce oxidative stress leads
to better insulin sensitivity and glucose disposal. But there
may be another mechanism that produces better glucose utilization
independent of the oxidative stress pathways. Apart from its
status as potent antioxidant, ALA is a necessary component
for the conversion of glucose to energy. A study is currently
scheduled to determine if supplementing with ALA may cause
the cell to take up more glucose.
|