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Biomedical subjects

V Ia Arion

Publications and source records attributed to V Ia Arion.

At least 19 recordsLinked to original sources
PubMed1999

[From transplantation of the thymus to molecular reconstruction of the immune system].

The results of the first global grafting of the thymus and a thymus-sternum block are given. The grafting of immunocompetent organs in children with the Louis-Bar syndrome is shown to cause to a partial and in some cases significant recovery of immunological parameters. Thus, blast-cell transformation showed 10-40% increases, the titers of antibodies to Staphylococcus and Escherichia coli rose, and immunoglobulin A that was generally absent in these children before surgery appeared. The clinical effect of grafting was noticeably observed 20-30 days after surgery. The most significant parameters were as follows: cessation of sinusitis, rhinitis, bronchitis, and purulent skin lesions. Neurological syndromes improved: tremor and staggering gait diminished, ocular convergence normalized. Thereafter such operations were made in 27 patients with Bruton's disease and in 3 patients with lymphogranulomatosis. The grafting of immunocompetent organs led to the design of agents derived from the thyroid gland (Tactivin) and bone marrow (myelopid). The immunobiological and clinical effects of Tactivin in the past 15-20 years are given in detail. The basic principles in immunomodulating therapy with thymic agents are presented.

Activins↗
PubMed1996

[The use of immunological indices for assessing the severity of the course of periodontitis and treatment efficacy].

The authors studied immunological status of patients with paradontosis. If included estimation of extended structure of lymphocytes and functional status of thymus. There was marked correlation between clinical of patients and immunological indices especially in severe form of paradontitis. As immunological preparation T-activin was used in injections and applications. Using of T-activin gave positive results in patient developed of paradontitis.

Adjuvants, Immunologic↗
PubMed1996

[Tactivin in the combined treatment of acute inflammatory diseases of the maxillofacial area].

Examinations of 46 patients with acute inflammatory diseases of the maxillofacial area revealed a reduction of some immunity parameters. Thymic activity of the saliva and blood was found to reduce still more after surgery (opening of the phlegmon). The ratio of thymic activities of the saliva and blood may be an indirect evidence of a tendency in development of an inflammatory process. The authors demonstrated the efficacy of correcting immunity parameters by tactivin, which was particularly effective in grave cases. Tactivin concentrations in the blood and saliva, their time course and ratio may be considered as additional criteria for assessing the status of patients and the risk of complications.

Acute Disease↗
PubMed1996

[The use of tactivin in the combined treatment and prevention of complications in reconstructive operations on the bones of the facial skeleton].

Sixty-three patients with congenital and acquired defects and deformations of facial bones without concomitant diseases were examined. Twenty-eight of them were operated on; auto- and alloplasty was resorted to in 18 patients, and to 10 patients tactivin was administered after common protocols for immunocorrection before or after surgery. Immunologic and clinical studies showed that immunodeficiency states are the most probable causes of postoperative complications following repair surgery on the facial bones. Tactivin normalized the immunity parameters and prevented the development of postoperative complications.

Adjuvants, Immunologic↗
PubMed1992

[T-cell immunity and immunomodulators in the comprehensive treatment of diffuse toxic goiter].

Age-specific and related to DTG severity lowering of T-lymphocyte count, active and autologous T-lymphocyte number, thymic serum activity were found in 83 DTG patients. These shifts made justified the use of immunomodulator tactivin in 32 DTG patients. The drug was administered in daily subcutaneous doses (1 ml of 0.01% solution) for 5 days. As a result, the T-cell immunity returned to normal values. The highest response occurred in young subjects with moderate hyperthyroidism. Because a single tactivin course failed to bring up a persistent effect, repeat courses are needed to achieve good clinical and immunologic responses.

Adjuvants, Immunologic↗
PubMed1992

[Biologically active substances from the skin that influence the proliferation and differentiation of cultured human keratinocytes].

Three fractions of biologically active substances of human skin varying in molecular weight (F1 > 15 kD, F2 1.4-15 kD, F3 < 1.4 kD) were tested in primary and regenerating cultures of human epidermal keratinocytes. F1 and F3 caused stimulation of keratinocyte proliferation, F2 inhibited proliferation and enhanced terminal differentiation of epidermal cells.

Cell Differentiation↗
PubMed1991

[Leukocytic index of intoxication and immunologic disorders in diffuse suppurative peritonitis].

Expression of total T- and B-population, T-subpopulation lymphocyte receptors and secretion of IgM, IgG and IgA were measured in 112 patients with diffuse purulent peritonitis and 81 healthy donors. Expression of receptors was correlated with the disease severity identified by leukocytic index of intoxication (LII). The latter appeared to accurately reflect the pattern of immunological impairment. Reduced absolute and proportional values of total pools of T-, B-cells and T-helpers, but elevated ones of T-suppressors and T-amplifiers occurred in LII less than 2.0. In LII greater than 7.0 there was total suppression of all the cellular populations due to deep lymphopenia. At the terminal stage of peritonitis paralysis of T-helper receptors and B-cells went in parallel with high secretion of serum immunoglobulins.

B-Lymphocytes↗
PubMed1991

[T and B components of the immune system in acute bronchopulmonary diseases in children with thymomegaly and without it].

The immune status was estimated comprehensively and indicators of the level I and II tests of T and B components of the immunity system were defined in 120 children with thymomegaly (group I), in 30 children with unenlarged thymus (group II), and in 40 practically healthy children with unestablished size of the thymus, with a favourable family and personal disease history, who had never fallen ill before the immunologic examination (group III). The children belonging to groups I and II were examined at the acute disease period, during convalescence and clinical wellbeing. It has been established that during the acute bronchopulmonary disease, the group I and II children manifested the same regularities of immune response to the action of an antigenic stimulus. However, at the period of the clinical wellbeing, the group II children showed a higher lymphocytosis, impairment of the ratio of the T lymphocyte subpopulations, an increase of the EAC--RFC count, and a decline of the level of serum thymic factor. It is assumed that in the group I children, the system of immunologic defence is of weak safety within the first 3 years of life.

Acute Disease↗
PubMed1990

[The use of T-activin for the prevention of congenital influenzal infection in mice and the correction of the immune deficiency].

Viremia accompanying influenza infection and the possibility of transplacental passage of the virus into the fetus make it expedient to develop measures for the prophylaxis of intrauterine infection of the fetus in case of influenza during pregnancy. The work presents the optimum scheme of administration of T-activin for prophylactic purposes to pregnant mice with acute influenza infection. Besides, the use of T-activin for immunocorrection in case of established congenital influenza infection in mice is proposed.

Adjuvants, Immunologic↗
PubMed1989

[Interaction of T-activin with peritoneal macrophages].

The action of T-activin on peritoneal macrophages of CBA mice after its introduction into the animals has been studied. In intact mice the phagocytic activity of macrophages and their resistance to the cytopathogenic action of Salmonella typhimurium live cells remains unchanged. The injection of corpuscular pertussis vaccine into mice leads to a decrease in the resistance of macrophages to the action of salmonellae. The simultaneous injection of T-activin into mice in doses of 0.1 and 1.0 microgram per animal abolishes the damaging action of the vaccine. The analysis of the in vitro action of T-activin on macrophages of intact mice revealed that the preliminary incubation of cells with the preparation sharply increases their resistance to the action of salmonellae, while its introduction simultaneously with bacteria or after them rapidly leads to the death of macrophages. The action of T-activin is supposed to be linked with triggering the biosynthetic processes mediating the resistance of macrophages to the cytopathogenic action of salmonellae.

Adjuvants, Immunologic↗
PubMed1989

[Effect of taktivin on diuresis and tubular cardiotrast secretion in the kidney].

The effect of a new immunomodulator taktivin (7-20 micrograms/kg subcutaneously, for 6 days) on the diuresis and tubular transport of cardiotrast (diodrast) was studied on rats. taktivin was shown to increase the tubular transport of the xenobiotic without significant changes in glomerular filtration and renal excretion of water, sodium, potassium, uric acid and creatinine. Possible mechanism of taktivin's action on the tubular transport of xenobiotics is discussed.

Adjuvants, Immunologic↗
PubMed1989

[Immunotherapy with taktivin and myelolipid in experimental influenzal infection].

In experiments on mice the influence of thymic and medullary immunomodulators on the character of fatal influenza infection, the reproduction of influenza virus in pulmonary and thymic tissues and the level of MIF production was studied. Tactivin and myelolipid, used both separately and in combination, proved to be immunotherapeutic preparations capable of decreasing mortality rate by 70-95%. The immunological effects of these preparations were manifested by an increase in the functional activity of the T-link of immunity in the absence of the stimulation of antibody formation.

Activins↗