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1.
Vopr Onkol ; 49(3): 332-6, 2003.
Artigo em Russo | MEDLINE | ID: mdl-12926216

RESUMO

Translocation of cytomedins into the cell is determined by their interaction with cellular membranes. The investigation concerned membrane-associated free-radical reactions in the formed elements of blood incubated with epithalamin. The antioxidative effect of epithalamin on such elements as red blood cells and lymphocytes sampled from breast cancer patients manifested itself as enhanced activity of antioxidative enzymes and elevated concentrations of fat-soluble antioxidative vitamins in the membranes. These changes are likely to be brought about by the intensification of their regeneration from the oxidized forms. It is suggested that the stimulating effect of epithalamin on immunocompetent cells is due to its modulating influence on free-radical reactions. This effect gives epithalamin significant advantage over many immunotropic drugs and makes a case for its large-scale application for immunological rehabilitation of cancer patients.


Assuntos
Antineoplásicos/farmacologia , Antioxidantes/farmacologia , Células Sanguíneas/efeitos dos fármacos , Células Sanguíneas/imunologia , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/imunologia , Radicais Livres/metabolismo , Peptídeos/farmacologia , Adulto , Idoso , Neoplasias da Mama/sangue , Feminino , Sequestradores de Radicais Livres/farmacologia , Radicais Livres/imunologia , Humanos , Pessoa de Meia-Idade , Vitaminas/metabolismo
2.
Vopr Onkol ; 45(3): 241-4, 1999.
Artigo em Russo | MEDLINE | ID: mdl-10443223

RESUMO

The influence of homolymph and of that incubated with chemopreparations on in vitro activity of antioxidants of blood was compared to establish a possible mechanism of effective application of homolymphochemotherapy for locally advanced tumors of the lung. As a result of homolymph injection into the blood, mainly non-enzymatic systems of antioxidant defense by lymphocytes were affected. This was probably due to their being disposed of in the course of host-against-transplant reaction to heterogenous antigens of donor lymph. Neutrophil functional activity was shown to pick up again as homolymph and chemotherapeutic drugs interacted with blood. A possible therapeutic effect of homolymph and chemopreparations on blood may be alleviating lung tumor suppression of granulocytes.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Antioxidantes/metabolismo , Imunoterapia/métodos , Neoplasias Pulmonares/tratamento farmacológico , Neoplasias Pulmonares/imunologia , Linfa/imunologia , Neutrófilos/efeitos dos fármacos , Neutrófilos/imunologia , Adulto , Terapia Combinada , Humanos , Injeções , Pessoa de Meia-Idade , Transplante Homólogo
3.
Vopr Onkol ; 45(3): 245-8, 1999.
Artigo em Russo | MEDLINE | ID: mdl-10443224

RESUMO

To establish the effect of autolymphochemotherapy on enzymatic and non-enzymatic systems of antioxidant protection of plasma and formed elements in blood of lung cancer patients, certain indices of peroxidation processes were simulated using a model containing blood and autolymph (with chemopreparations) sampled from patients with lung tumors. Autolymph injection into the patients' blood stream was followed on the basis moderate stress reaction which of caused reactions of endogenous antioxidants to oscillate. However, the structure and function of cellular membranes of formed elements were not affected. Chemotherapy neither aggravated stress condition nor did it exert direct cytotoxic effect on blood cells.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/farmacologia , Antioxidantes/metabolismo , Sangue/efeitos dos fármacos , Imunoterapia/métodos , Neoplasias Pulmonares/tratamento farmacológico , Neoplasias Pulmonares/imunologia , Linfa/imunologia , Adulto , Células Sanguíneas/efeitos dos fármacos , Humanos , Injeções , Neoplasias Pulmonares/sangue , Pessoa de Meia-Idade , Oxirredução/efeitos dos fármacos , Plasma/efeitos dos fármacos , Transplante Autólogo
4.
Vopr Onkol ; 44(3): 297-9, 1998.
Artigo em Russo | MEDLINE | ID: mdl-9695775

RESUMO

Indices of lipid peroxidation in lymph from lung cancer patients before and after chemotherapy were studied. Chemotherapeutic drugs were shown to exert a moderate stressor effect on lymph by triggering oscillating reactions of endogenous antioxidant systems. Stress releases a pool of low-molecular weight antioxidants. Absence of catalase activity in plasma and lymphocytes is a peculiar feature of lymph in lung cancer patients.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/farmacologia , Radicais Livres , Peroxidação de Lipídeos/efeitos dos fármacos , Neoplasias Pulmonares/metabolismo , Linfa/metabolismo , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Feminino , Humanos , Neoplasias Pulmonares/tratamento farmacológico , Masculino , Pessoa de Meia-Idade
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