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Biomedical subjects

L Bátkai

Publications and source records attributed to L Bátkai.

8 recordsLinked to original sources
PubMed1985

Interferon production by and radioprotective effect of poly I : C and tilorone in mice exposed to helium alpha irradiation.

Serum interferon production induced by poly I : C and tilorone and their radioprotective effect in mice exposed to He-alpha particles was studied. The results were compared to those observed after exposure of mice to acute 60Co-gamma irradiation. Interferon production induced by poly I : C was depressed by He-alpha irradiation less than that induced by tilorone. Treatment of mice with poly I : C or tilorone before He-alpha irradiation had no effect on the mortality of animals in contrast to the radioprotective activity of these compounds against 60Co-gamma irradiation.

Alpha Particles↗
PubMed1983

Effect of glutaurine on liver tumour development and acute leukaemia induced by MC29 virus in turkey poults.

The effect of glutaurine (gamma-L-glutamyl-taurine, Litoralon) on the take and development of hepatoma and acute leukaemia induced by MC29/L avian oncorna-virus has been investigated in turkey poults. Glutaurine significantly decreased the incidence of hepatoma, but had no significant effect on the lethality of MC29/L infected birds. The number of primitive myeloid cells was lower in the peripheral blood of glutaurine treated birds than in the untreated controls. Reverse transcriptase determinations in turkey fibroblast cell cultures indicated that glutaurine delays MC29/L virus expression.

Animals↗
PubMed1983

Results of space experiment program "Interferon". I. Production of interferon in vitro by human lymphocytes aboard space laboratory Solyut-6 ("Interferon I") and influence of space flight on lymphocyte functions of cosmonauts ("Interferon III").

The results of the biological space experiment "Interferon" performed by two international cosmonaut crews aboard the space laboratory Solyut-6 are reported. Human lymphocytes separated from the blood of healthy donors and placed into "Interferon I" equipment could be kept for 7 days in suspension culture under spaceflight conditions. Interferon production could be induced in human lymphocytes by preparations of different origin, such as virus, synthetic polyribonucleotides, bacterial protein and plant pigment. An increased lymphocyte interferon production was observed in the space laboratory as compared to the ground control. A decrease of induced interferon production and natural killer cell activity was observed in the cosmonauts' lymphocytes on the 1st day on Earth after 7 days spaceflight.

Cell Membrane Permeability↗
PubMed1983

Results of space experiment program "Interferon". II. Influence of spaceflight conditions on the activity of interferon preparations and interferon inducers ("Interferon II").

The influence of spaceflight conditions on the biological activity of HuIFN-alpha preparations (lyophilized, in solution and in ointment) and interferon inducers was studied. In antiviral activity no difference was observed between the samples kept aboard the spaceship and the controls kept under ground conditions. The interferon inducers poly I:C, poly G:C and gossipol placed in the space laboratory for 7 days maintained their interferon-inducing capacity. The circulating interferon level in mice was the same irrespective of the induction being performed with flight or ground-control samples of inducers.

Animals↗
PubMed1979

Induction of interferon and radioprotective activity of polyriboguanylic-polyribocytidylic acid complex in mice.

The effect of polyriboguanylic-polyribocytidylic acid complex was investigated against acute X- and prolonged 60Co-gamma irradiation. Prophylactic administration of the polyribonucleotide complex increased endogenous spleen colony formation and the percentage of survival of irradiated BALB/c mice. The most pronounced effect was observed when the animals had been irradiated at the time of maximum interferon accumulation in blood, i.e. 24 hr after interferon induction by the polyribonucleotide complex.

Animals↗