Chronic dysregulation of carbohydrate metabolism, resulting in abnormal hyperglycemic
patterns is commonly known as diabetes. This is actually a "catch-all"
term. Diabetic individuals are actually categorized as follows:
Insulin-Dependent Diabetes Mellitus (IDDM, Type I DM) also known as juvenile-onset
diabetes, is characterized by a full physiological need for insulin, which
is patient administered via injection. In this form of diabetes, the patient
demonstrates a full pancreatic destruction of insulin secreting beta cells.
Non-Insulin Dependent Diabetes Mellitus (NIDDM, Type II DM) also known as
adult-onset diabetes is the most common form of the disease. It claims an
estimated 90% of all cases reported. This form is generally associated with
obesity. Treatment typically consists of weight loss, diet modification and
one of the sulfonylurea agents such as chlorpropamide, glyburide or glipizide.
Gymnema Sylvestre: An Ayurvedic Tool
The leaf extract of Gymenma sylvestre (GSE), a plant indigenous to the forests
of India and Nepal, has demonstrated great promise in the treatment of type
I and type II diabetes.
Studies performed on diabetic rats have shown the herbal extract to double
the number of pancreatic islet and beta cells. Blood glucose normalization via
increased insulin production was achieved through repair and/or regeneration
of pancreatic tissues.
In one study, conducted on twenty-seven IDDM patients, GSE significantly reduced
the dose requirement for insulin and also demonstrated a near normalization
of serum lipids. Again, GSE?s proposed mechanism of action was via the repair
and/or regeneration of pancreatic beta cells.
In another study performed with twenty-two NIDDM individuals on conventional
oral sulfonylurea anti-hyperglycemic agents (such as glyburide, glipizide),
GSE were administered for 18-20 weeks as an adjunct, at a dosage of 400 mg per
day. Blood values during GSE supplementation demonstrated a significant reduction
of glucose, glycosylated hemoglobin, and glycosylated plasma proteins. Of the
twenty-two individuals studied, five were able to discontinue the use of pharmaceuticals
and maintain glucose homeostatsis SOLELY from GSE.
Big Research on a Little Nutrient
As the American populace becomes more sedentary and thus more obese, diabetes
is steadily on the rise. So, potential new therapies are being studied. One
particularly promising compound is the trace element vanadium. Research conducted
almost one hundred years ago by French physician B. Lyonnet demonstrated that
when a vanadium salt was administered to diabetic subjects, the concentration
of glucose in urine dropped sharply. Within the past 20 years a resurgence of
vanadium research has taken place in areas such as pharmacodynamics and toxicity.
Although many published studies have verified the insulin-mimetic effects of
vanadium, it?s total biological role in human nutrition is still poorly understood.
Various studies on vanadium, such as those preformed on streptozocin-induced
diabetes in rats, resulted in a normalization in blood glucose levels. Stimulation
of glucose oxidation and adipoyte transport has been demonstrated via vanadium
by several experiments, as well as enhancement of glycogen synthesis and inhibition
of hepatic gluconeogenesis. Investigators also believe vanadium to be responsible
for the phosphoryation of the insulin receptor, resulting in activitation and
glucose sensitivity.
It has been demonstrated that the inorganic vanadate 5+ salt forms have great
potential for toxicity (primarily manifesting as elevation of hepatic enzymes,
neuropathy and renal damage) in long term treatment. These negative aspects
were also observed with vanadyl sulfate, even at clinical doses. Other forms
of the element were studied for gut absorption, bioavailability, and dose-to-efficacy
toxicity.
Vanadium as bis(maltolato)oxovanadium (BMOV) was shown to have a NO POTENTIAL
FOR TOXICITY at therapeutic doses when administered for a prolonged period.
This was due to increased absorption and a higher rate of clearance and excretion
than other forms of vanadium. The increased bioavailability of BMOV thus resultes
in a lesser need for the element to achieve glucose stability and a reduction
and/or elimination of toxicity potential.
BMOV is widely considered by scientific studies to be the preferred choice
of the element for long term therapy of various hyperglycemic conditions.
Magnesium: Insulin Potentiation
Magnesium may be the most important mineral in the diabetic condition. Bith
NIDDM and IDDM individuals have been demonstrated to respond positively when
supplemented with magnesium (either as intravenous or oral).
Marked improvement was observed in areas such as blood glucose stablility and
drug (both insulin and oral) potency requirement. Unfortunately, the potential
for hypomagnesaemia among diabetic patients can be greater than other minerals
deficiencies including chromium and vanadium. This may be partly due to a variety
of exogenous factors shch as prescription diuretics (i.e., hydrachlorothiazide
and furosemide) and poor diet.
The significance of magnesium in the diabetic condition is gaining greater
acceptance in orthodox medicine. This is partly due to the insulin resistance
phenomenon (a.k.a. Syndrome X) and cardiac risk.
Magnesium has been shown to play a major role in various biochemical mechanisms
that directly impact glucose utilization. Studies have shown magnesium supplementation
to increase insulin sensitivity, establishing a rationale in Syndrome X therapy.
Stimulation of glycogenesis, glycolysis and oxygen utilization (resulting in
enhanced insulin bioavailability) are the primary dynamics of the magnesium
ion. Once again, magnesium emerges as a critical factor in the nutritional approach
to chronic degenerative disease.
Nutrient Catalysts: Pyridoxine and Alpha-Lipoic Acid
Pyridoxine and alpha-lipoic acid (a B-vitamin like compound classified as a
metavitamin) can be of benefit to the diabetic sufferer on many different levels.
Pyridoxine, either as HCI or the coenzyme phosphorolated form, has been demonstrated
to assist with glucose metabolism. This mechanism is likely due to its catalystic
effects with magnesium, positively effecting glycogensis and oxygen utilization.
Pyridoxine supplementation, as well as other B complex vitamins, also greatly
reduces the potential for the various neuropathies classically associated with
the diabetic patient.
One considered an obscure biological compound, alpha-lipoic acid has truly
?come-of-age?. This metavitamin has had a long history of use throughout Europe
and is primarily dispensed for hepatic disorders, peripheral neuropathy, heavy
metal toxicity and mushroom poisoning. Scientific studies have demonstrated
that alpha-lipoic acid increases glucose tolerance and glucose metabolism via
potentiation of the Kreb cycle. Within the past several years, alpha-lipoic
acid has also been demonstrated to have extremely potent anti-oxidant activity,
especially toward free-radicals which have an affinity for lipid molecules.
Alpha-lipoic acid may truly be one of the most important ?metavitamins? for
the diabetic sufferer.
Conclusion: A three-Fold Approach
Gymnema sylvestre, vanadium complex (BMOV), magnesium, pyridoxine, and alpha-lipoic
acid may perhaps be the protocol of choice for the nutritional treatment of
both NIDDM and IDDM.
This "tri-directional" procedure recognizes the three major factors
of the disease: stimulation of insulin via pancreatic beta/islet cells: mimicking
of insulin by an exogenous substance: and the potentiation of bioavailability
of endogenous insulin.
Mitch Chavez, B.SC., C.N. is a Certified Nutritionist with an undergraduate
in nutrition science with emphasis on nutritional biochemistry. He is an independent
technical consultant to the natural products industry and Director of Education
for Progressive Apothecary, a professional products distributor exclusively
for practioners of natural medicine.
In addition to his position with Progressive Apothecary, he is the Vice
President and Director of Research and Development of Nutraceutical Research
Laboratories and Chief Science Officer for Integrative Medical Research, Ltd.,
both makers/suppliers of cutting-edge nutriyionals for physicans specializing
in complementary and integrative medicine.
Mr. Chavez has had numerous articles puvblished in both lay magazines
and peer reviewed journals regarding nutritional supplemention and product
formula rationale. He has also lectured internationally by invitation to medical
schools at a post-graduate level concerning nutritional biochemistry and botanical
medicine.
SCIENTIFIC REFERENCES:
- Shanmugasundaram, E.R.B., et el. Possible Regeneration of the Islets of
Langerhans in Streptozotocin-Rats Given Gymnema Sylvestre Leaf Extracts. J.
Ethnopharma. 30:265-279, 1990.
- Shanmugasundaram, E.R.B., et al. Use of Gymnema Sylvestre Leaf Extract in
the Control of Blood Glucose in Insulin-Dependent Diabetes Mellitus. J. Ethnopharma.
30:281-294, 1990.
- Baskaran, K. et al. Antidiabetic Effect of a Leaf Extract From Gymnema Slyvestre
in Non-Insulin-Dependent Diabetes Mellitus Patients. J. Ethnopharma. 30:295-305,
1990.
- Tolman, E. et al. Effects of Vanadium on Glucose Metabolism in Vitro. Life
Sci. 25:1159-1164, 1980.
- Dubyac, G. et al. The Insulin-Mimetic Effects of Vanadium in Isolated Rat
Adipocytes. J. Biol. Chem. 225:5306-5312, 1980.
- Tamura, S. et al. Insulin-Like Effect of Vanadate on Adipocyte Glycogen
Synthase and on Phosphorylation of 95,000 Dalton Subunit of Insulin Receptor.
Biochem. Biophys. Research Comm. 113:80-86, 1983.
- Tamura, S. et al. A Novel Mechanism for the Insulin-Like Effect of Vanadate
on Glycogen Synthetase in Rat Adipocytes. J. Biol. Chem. 259:6650-6658, 1984.
- Myerovitch, J. et al. Oral Administration of Vanadate Normalizes Blood Glucose
Levels in Streptozocin-treated Rats. J. Biol. Chem. 262:6658-6662, 1987.
- Mc Neill, J.H .et al. Bis(maltolato)oxovanadium (IV) is a Potent Insulin
Mimic. J. Med Chem. 35:1489-1491, 1992.
- Yuen, V.G. et al. Glucose-lowering Effects of a New Organic Vanadium Complex,
Bis(maltolato)oxovanadium (IV). Can. J. Physiol. Pharmaco. 71:263-269, 1993.
- Yuen, V.G. et al. Prevention of Diabetes-induced Pathology in Streptozocin-induced
Diabetic Rats by Bis(maltolato)oxovanadium. Pharmacol. Comm. 0:1-11, 1993.
- NcNeill, J.H. et al. Increased Potency of Vanadium Using Organic Ligands.
Can. J. Physiol. Vanadium Symposium, 72(3), Abstract L13; p.11.
- Goldfine, A.B. et al. Clinical Trials of Vanadium Compounds in Human Diabetes
Mellitus. (abstract) Can. J. Physiol. Pharmacol. 72(supply 3) 11, 1994.
- Srivastava, V.K. et al. The Significance of Serum Magnesium in Diabetes
Mellitus. Indian J. Med Sci. 47(5):119-123, 1993.
- Gullestad, L. et al. Effect of Magnesium Treatment on Glycemic Control
and Metabolic Parameters in NIDDM Patients. Diabetes Care 17(5):460-461, 1
994.
- Lefebvre, P.J. et al. Magnesium and Glucose Metabolism. Therapie 49(1):1-7,
1994.
- Paolisso, G., Sgambato, S., Gambardella, A., et al. Daily Magnesium Supplements
Improve Glucose handling in Elderly Subjects. American Journal of Clinical
Nutrition, 55:1161-1167, 1992.
- White, J.R. and Campbell, R.K. Magnesium and Diabetes: A Review. Annals
of Pharmacotherapy, 27:775-780, 1993.
- Solomon, L.R. and Cohen, K. Erythrocyte2 Transport and Metabolism and Effects
of Vitamin B-6 Therapy in Type II Diabetes Mellitus. Diabetes, 38:881-886,
1989.
- Jones, C.L. and Gonzalez, V. Pyridoxine Deficiency: A New Factor in Diabetic
Neuropathy. Journal of the American Podiatric Association, 68:646-653, 1978.
- Jones, S. et al. Enhancement of Glucose Disposal in Patients with Type
II Diabetes by Alpha-lipoic Acid. Arzneim. Forsch., 45:872-874, 1995.
- Nagamatsu, M. et al. Lipoic Acid Improves Nerve Blood Flow, Reduces Oxidative
Stress, and Improves Distal Nerve Condition in Experimental Diabetic Neuropathy.
Diabetes Care, 18:1160-1167, 1995.