Vanadium: For Athletes, Those Losing Weight, Diabetics
Vanadium (V)
For athletes, those losing weight, diabetics.
In the human body vanadium participates in redox processes, respiration, and hematopoiesis. It plays an important role in growth and reproduction processes, as well as slowing down cholesterol synthesis, and is necessary for the formation of bone tissue and teeth.
The daily requirement of the human body is 10–25 mcg.
In the body of an adult there are about 100 mcg of vanadium. Less than 5% of vanadium absorbed orally (in the form of vanadyl or vanadate) is absorbed. Vanadium is part of muscle and bone tissue and can accumulate in the heart muscle, spleen, thyroid gland, lungs, and kidneys. Once in the blood, vanadium is apparently converted into vanadyl–transferrin and vanadyl–ferritin complexes in body fluids and plasma. Urine is the main route of excretion for absorbed vanadium, while bones are the main site of deposition.
Biological role in the human body. The biological role of vanadium is not well studied. It is believed that vanadium participates in the regulation of carbohydrate metabolism and cardiovascular activity, as well as in the metabolism of bone and dental tissues.
It is considered that vanadium has catalytic functions in redox processes. Vanadium is an inhibitor and possibly a regulator of Na+–K+–ATPase, ribonuclease, and other enzymes. Vanadium enhances oxygen absorption by liver tissues, catalyzes the oxidation of phospholipids by isolated liver enzymes, and may influence blood sugar levels. Vanadium affects certain functions of the eyes, liver, kidneys, myocardium, and nervous system.
It is considered that vanadium has catalytic functions in redox processes. Vanadium is an inhibitor and possibly a regulator of Na+–K+–ATPase, ribonuclease, and other enzymes. Vanadium enhances oxygen absorption by liver tissues, catalyzes the oxidation of phospholipids by isolated liver enzymes, and may influence blood sugar levels. Vanadium affects certain functions of the eyes, liver, kidneys, myocardium, and nervous system.
In biological systems, the most important forms of vanadium are tetra- and pentavalent states, which easily form complexes with other substances, such as transferrin or hemoglobin, thus stabilizing them against oxidation. It is suggested that vanadium acts as a cofactor for the enzymes phosphoryltransferase, adenylate cyclase, and protein kinase; in the form of vanadyl – in the biosynthesis of hormones, glucose, and lipid metabolism. The most studied is galoperoxidase – a peroxidase of the thyroid gland.
In recent years, it has been established that a number of inorganic compounds, namely, vanadium, selenium, molybdenum, and tungsten salts, mimic the effects of insulin. Among them, the biological role of vanadium is the most studied. It is likely that in the near future, the use of vanadium-containing compounds in the therapy of patients with type I diabetes will allow for a reduction in the dose of insulin administered to diabetics, and possibly even a complete withdrawal from it.
In recent years, it has been established that a number of inorganic compounds, namely, vanadium, selenium, molybdenum, and tungsten salts, mimic the effects of insulin. Among them, the biological role of vanadium is the most studied. It is likely that in the near future, the use of vanadium-containing compounds in the therapy of patients with type I diabetes will allow for a reduction in the dose of insulin administered to diabetics, and possibly even a complete withdrawal from it.
Vanadium belongs to a biologically significant group of transition elements. Its chemistry is extremely complex. It easily changes its oxidation state and can exist in both anionic and cationic forms. Under physiological conditions, pentavalent vanadium predominantly exists as metavanadate (VO3–) and possibly orthovanadate (VO43–), while tetravalent vanadium is mainly present in the form of vanadyl (VO2+). In blood plasma, the concentration of vanadium is about 20 ng, and its main form is metavanadate, which enters the cell via anion-transporting systems and is then reduced by glutathione to vanadyl. Both biologically active forms of vanadium (vanadate and vanadyl) exhibit insulin-like action. Essentially, all the main effects of insulin aimed at regulating carbohydrate and lipid metabolism are mimicked by vanadium compounds in vitro and in vivo.
Vanadium compounds, in addition to their hypoglycemic effect, also exhibit antihypertensive and anti-cholesterolemic activity. Furthermore, vanadium-containing compounds demonstrate antitumor activity.
Synergists and antagonists of vanadium. To date, no synergists of vanadium have been identified.
Antagonists of vanadium include chromium and proteins found in food.
Antagonists of vanadium include chromium and proteins found in food.
Signs of vanadium deficiency: vanadium deficiency may be one of the causes of cardiovascular and kidney diseases, increased risk of atherosclerosis, increased risk of developing diabetes, reduced reproductive capacity, and increased infant mortality.
Vanadium deficiency in animals leads to an increase in the frequency of abortions and a decrease in milk production (about 40% of offspring die), enlargement of the thyroid gland, and stunted growth.
When goats were raised on a diet specifically deficient in vanadium, an increase in the number of miscarriages and mortality among newborn animals was observed. In this case, death often occurred with convulsions. Deformation of the skeleton (hind limbs) and enlargement of the thyroid gland were noted in the experimental animals.
Experiments on rats have shown that the introduction of vanadium against a background of iodine deficiency or other goitrogenic factors can have a positive effect on the restoration of thyroid function.
Since vanadium may affect iodine metabolism and thyroid function, it is suggested that it may have nutritional significance during stress, which causes a sharp decrease in the normal status of the thyroid gland.
Vanadium deficiency may be accompanied by a decrease in cholesterol levels and an increase in triglycerides, hepatic lipids, and phospholipids in blood plasma, as well as an increase in hematocrit.
Vanadium deficiency in animals leads to an increase in the frequency of abortions and a decrease in milk production (about 40% of offspring die), enlargement of the thyroid gland, and stunted growth.
When goats were raised on a diet specifically deficient in vanadium, an increase in the number of miscarriages and mortality among newborn animals was observed. In this case, death often occurred with convulsions. Deformation of the skeleton (hind limbs) and enlargement of the thyroid gland were noted in the experimental animals.
Experiments on rats have shown that the introduction of vanadium against a background of iodine deficiency or other goitrogenic factors can have a positive effect on the restoration of thyroid function.
Since vanadium may affect iodine metabolism and thyroid function, it is suggested that it may have nutritional significance during stress, which causes a sharp decrease in the normal status of the thyroid gland.
Vanadium deficiency may be accompanied by a decrease in cholesterol levels and an increase in triglycerides, hepatic lipids, and phospholipids in blood plasma, as well as an increase in hematocrit.
Excessive intake of vanadium into the body is usually associated with environmental and industrial factors. In cases of acute exposure to toxic doses of vanadium, workers experience local inflammatory reactions of the skin and mucous membranes of the eyes, upper respiratory tract, accumulation of mucus in the bronchi and alveoli. Systemic allergic reactions such as asthma and eczema, as well as leukopenia and anemia, occur, accompanied by disturbances in the main biochemical parameters of the body.
It has been established that vanadium can inhibit fatty acid synthesis and suppress cholesterol formation. Vanadium inhibits a number of enzyme systems, slows down phosphorylation and ATP synthesis, reduces the levels of coenzymes A and Q, stimulates the activity of monoamine oxidase and oxidative phosphorylation.
It has been established that vanadium can inhibit fatty acid synthesis and suppress cholesterol formation. Vanadium inhibits a number of enzyme systems, slows down phosphorylation and ATP synthesis, reduces the levels of coenzymes A and Q, stimulates the activity of monoamine oxidase and oxidative phosphorylation.
It is also known that in schizophrenia, the level of vanadium in the blood significantly increases.
When vanadium is administered to animals (at doses of 25–50 mcg/kg), growth retardation, diarrhea, and increased mortality are observed.
An increased intake of proteins and chromium in the diet reduces the toxic effects of vanadium.
An increased intake of proteins and chromium in the diet reduces the toxic effects of vanadium.
Main manifestations of vanadium excess: a decrease in the content of ascorbic acid in the body, a decrease in the content of cystine in hair, an increased frequency of bronchopulmonary diseases, and an increased risk of neoplasm development.
Vanadium is necessary: in diabetes, hyperinsulinemia, anemia, elevated blood pressure, in the treatment of tuberculosis, syphilis, rheumatism, during planned weight loss, in sports training.
Food sources of vanadium: mollusks, marine fish, fatty meat, liver, vegetables: ginger, potatoes, zucchini, kelp, carrots, pattypan squash, radishes, black radish, turnips, beets, celery, parsnips, parsley, Jerusalem artichokes, pumpkins, horseradish, garlic; greens: basil, coriander (cilantro), green onions, leeks, chives, parsley greens, rhubarb stalks, arugula, lettuce, celery greens, dill, wild garlic, garlic greens, spinach, sorrel, tarragon; black pepper, olives; grains and legumes: buckwheat, corn, oats, millet, soft wheat, hard wheat, rye, long-grain white rice, short-grain white rice, brown rice, wild rice, beans, peas, soybeans, beans, lentils, barley; fruits and berries: apricots, quince, pineapples, oranges, grapes, cherries, pomegranates, grapefruits, pears, melons, strawberries, figs, viburnum, cranberries, lemons, tangerines, sea buckthorn, peaches, black chokeberry, black currants, persimmons, cherries, blueberries, mulberries, apples; dried fruits: raisins, dried figs, dried apricots, dates, prunes; nuts and seeds: peanuts, cashews, sesame, poppy, macadamia, almonds, Brazil nuts, walnuts, pine nuts, sunflower seeds, pumpkin seeds, pistachios, hazelnuts; vegetable oils; mushrooms: white mushrooms, chanterelles.