Application of retinol in medical practice is widespread. After all, he takes part in almost all chemical processes in the body - regulates the growth and division of cells, neutralizes free radicals, stimulates the immune system, is responsible for the visual impulses of the brain controls the work of metabolism, hormone production, cell regeneration and tissue. Also included in the mandatory list of complex multivitamin, such as Aevitum, Aerovit, dekamevit, komplivit and others.
In the human body, as a true vitamin, retinol comes from animal products. Dairy products - milk, butter, cream, cheese. Meat and fish by-products, eggs and caviar. Vitamin can be synthesized by the body from carotene - provitamin A, similar to him in function and structure, which is contained in plant foods. Carotene and retinol other compounds are present in small amounts in almost all vegetables, fruits, berries and some herbs. Carotene is resistant to heat treatment, but evaporates during the oxidation and svetochuvstvitelen also not advisable to use iron and copper utensils for cooking foods containing this vitamin.
Third, no less important way of receipt of retinol in the body is the use of the finished drug - retinol acetate or retinol palmitate. The most common form is the use of a solution of retinol acetate in butter and jelly beans, but the greatest efficiency has dosedvitamin A capsules. Application capsules due to the fact that the active substance contained in the envelope, and not in contact with oxygen. In our body vitamin A protects against oxidation tocopherol (vitamin E). If tocopherol level is low, the body can not digest enough vitamin A. The same principle retinol interacts with calciferol (vitamin D). A deficiency of zinc may affect the inefficient delivery of vitamin A through the intestinal wall into the bloodstream, retinol deficiency, in turn, complicates the assimilation of zinc.
Retinol - one of the best natural antioxidants, stimulates the redox processes in the body, increases metabolism and energy metabolism. Metabolic disorders, disorders of body weight, as well as diseases such as rickets and hyperkeratosis, prevent the use ofvitamin A capsules. Application the drug also increases protein synthesis in bone and cartilage, it has beneficial effects on the formation of bones and teeth.
The use of an oil solutionvitamin A capsules, using other pharmacological forms of retinol, help in the development of immunity. Increases the body's resistance to infections, regulates the biosynthesis of cell membranes, increases the level of antibodies and the activity of phagocytes. Vitamin A protects the body from viral respiratory infections, bronchopulmonary disease, erosive and ulcerative and inflammatory lesions of the gastrointestinal tract and urinary tract infections. Controls the synthesis of adrenal hormones and growth hormone production slows swings thyroid hormones and establishes the function of the sebaceous and sweat glands. To maintain a constant level of blood sugar in diabetes and hypoglycemia must be takenvitamin A capsules. Application of the drug is required to deficiency of vitamin A.
When A-avitaminosis in most cases there is a weakening of spatial orientation in the twilight, reduced color clarity and the total concentration of view. Also, with a deficiency of vitamin A can occur unexplainable headaches, general weakness and fatigue, lethargy and loss of appetite which leads to depletion of the body. At deficiency of retinol in the blood decreases the level of hormone progesterone, resulting in infertility occurs in women.
As an adjunct in the treatment of eczema, ichthyosis, psoriasis, pyoderma also recommendedvitamin A capsules. Application retinol bring a positive trend in the treatment of various inflammatory and degenerative processes of the skin: injuries, burns and frostbite. Retinol is indicated for lesions of the retina and optic nerve, such as night blindness varying degrees, lacrimation disorders, viral and bacterial conjunctivitis, eczematous lesions of the eyelids.
Preventive doses are set depending on age, weight and the daily needs of the organism. They are mostly standard. For children - 0, 5-1 mg for adults - 1, 5, pregnant and lactating women - 2-2, 5 mg.
Due to the high percentage of uptake of the active ingredient, in a very complicated and advanced cases of the disease, prescribevitamin A capsules. Application capsules gives rapid effect and contributes to the concentration of the drug in the liver, retina, heart, lung, adrenal cortex. That is why retinol treatment should be done only under medical supervision, and should not be abused to increase the prescribed dose. Unsupervised use of large doses of the drug causes side effects and hypervitaminosis.
The main symptoms of vitamin overdose are drowsiness and dizziness, headache, nausea and vomiting, dizziness, bone pain, allergies and hypothermia. As an antidote used vitamin C or thyroxine. Adverse events are themselves, if in time to cancel an appointmentvitamin A capsules. Applications retinol nephropathy, pyelonephritis, cholelithiasis, and heart failure is not recommended.
Should not be administered high doses of the drug to pregnant women, especially in the first trimester, as there is a high risk of teratogenic effects, which remains 6-12 months after stopping. You also need to take into account some of the chemical characteristics of retinol in combination with other medicines. Should not drink based on hormonal contraceptives with estrogen, togethervitamin A capsules. Application may result in hypervitaminosis A by increasing the absorption of vitamin A under the action of the hormone. Against the background of the use of high doses of retinol undesirable long-term treatment with antibiotics of the tetracycline group - it increases the risk of a sharp rise in intracranial pressure.
Tatiana Nikolaeva
Women's magazine JustLady