In the dermatology the most frequently used methods are minor ozonated autohaemotherapy in the treatment of allergodermia, acne, herpes; ozone chambers in the treatment of varicose symptocomplex (as a variant - ozone caps in the treatment of alopecia areata); intravenous infusions of ozonated saline solution in the treatment of angiitis, severe forms of allergodermia, alopecia, lichen planus; subcutaneous ozone injections in the treatment of alopecia, acne disease, lipodystrophy.
One of the central mechanisms of positive action of O3 in different diseases is correction of hypoxic conditions by increasing deformability of the erythrocytes, partial oxygen tension in arterial blood, by improving release of oxygen by oxyhemoglobin.
Immunomodulating effects of ozone therapy are related to an increase in the production of cytokines. Of particular interest is the report of H. Kief (1993) about an increase in the level of interleukin 2 and gamma-interferon through ozone therapy provided to patients with allergosis (food allergy, bronchial asthma, atopic dermatitis).
The investigation into the effect of ozone therapy on the course of HIV-infection was a starting point for studying the mechanism of immunocorrective properties of O3. The results of the experiments "in vitro" have shown that ozone is able to inactivate extracellular HIV in the organism's liquids and suppress the growth of intracellular HIV in concentrations being safe for cells. It has been established that the antiviral effect of ozone includes destruction of virus particles, inactivation of reverse transcriptase and disability of virus to adhere its receptor to target cells.
The investigations have shown that by conveying O3 through virus-containing liquid it comes to complete inactivation of virus, chronically infected cells treated with ozone lose their ability to initiate infection in case of joint cultivation with intact sensitive cells. Thus, O3 is a promising method of inactivation of human retroviruses in the organism's liquids and blood preparations.
The experimental investigations conducted by Italian scientists V.Bocci and L.Paulesu in 1990 established that ozone acts on monocytes and lymphocytes as an inductor of cytokines towards the production of interferon and tumor necrosis factor and apparently on many other immune functions as well. V.Bocci supposes that these cytokines in turn can activate further lymphoid cells, lead to immunostimulation without side effects. Of great importance are the data about absence of carcinogenic and teratogenic effects of moderate ozone concentrations. The use of high ozone concentrations for external applications allows achieving a viricidal effect.
Through interaction of microorganisms with high ozone concentrations it comes to elimination of both bacteria and viruses resulted from oxidative destruction of their capsulated membrane. Cleavage products of DNA and RNA were found out through ozone by different authors. Disturbances of physical properties of membranes occur due to changes in the composition of their lipid fraction in case of excessive free-radical oxidation. The mechanism of action of high ozone concentrations is of great importance for practical medicine i.e. for treatment of trophic ulcers, burn surfaces and infected wounds with ozone/oxygen gas mixtures.
Nowadays, dermatovenereology and dermatocosmetology are the fields of medicine where ozone therapy is widely used in the form of parenteral methods of introduction, treatment of damaged areas with O2/O3 gas mixtures and ozonized external remedies, in particular ozonized olive oil. High ozone concentrations are indicated for bactericidal and mycocidal action, low ozone concentrations - for inactivation of viruses and immunomodulating effects. The mechanisms of sanogenesis of ozone therapy in atopic dermatitis are most well-investigated. It has been shown that improvement of clinical picture is associated with normalization of immune indices, activation of some enzymatic antioxidants along with non-stimulation of lipid peroxidation, increase in the levels of histaminopexia and serotoninopexia.
Nowadays, ozone therapy of atopic dermatitis is performed in the form of minor ozonated autohaemotherapy, rectal insufflations of O2/O3 gas mixtures, intravenous infusions of ozonated saline solution, major ozonated autohaemotherapy, applications with ozonized olive oil. Thanks to similar etiology and pathogenesis ozone therapy is effective in another allergodermia as well, in particular - eczema. The generally accepted method of laboratory control over efficiency and safety of ozone therapy is determination of lipid peroxidation products, spectrum of enzymatic antioxidants, in particular superoxiddismutase and catalase of the erythrocytes and integral index - total antioxidant plasma activity.
The ability of ozone to inactivate viruses is used in the treatment of dermatosis of viral etiology, in particular herpes, the method of choice is major ozonated autohaemotherapy. J.Delgano et al. (1997) reported about efficiency of subcutaneous injections of O2/O3 in the treatment of pemphigus.
The use of ozone therapy in the treatment of viral diseases is especially actual in the conditions of growing spread of HIV-infection. The important aspect explaining a positive influence of ozone therapy in AIDS is the action of ozone on causative agents of opportunistic infections (herpes, mycosis, folliculitis). Besides, ozone can not only inactivate HIV, but also stimulate immunocompetent cells through normalization in the level of T-helpers and relationship Tx/Tc. The efficient antiviral effect of ozone is proved by evidence about complete disappearance of pointed condylomas in women after applications with ozone-containing drug products. Nowadays, ozonized olive oil has a hygienic certificate and is a remedy for cosmetic care. Its production requires lengthy perfusion of O2/O3 gas mixture with high ozone concentrations through a column of olive oil. As a result of reaction between ozone and unsaturated fatty acids it comes to formation of peroxides characterized by low reactivity. While gaseous ozone exerts an instant bactericidal effect, the effect of ozone-related oily products can last for many hours. Ozonized olive oil has well-manifested fungicidal properties and can be efficiently used in the treatment of onychomycosis caused by Tr. rubrum and yeast fungi.
Ozonized olive oil is also used in the treatment of trophic ulcers, microbic eczema, chronic ulcerous pyoderma, herpes. The use of ozonized olive oil in the treatment of different pyodermas is proved by in vitro investigations of its bactericidal activity.