Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 20
Filtrar
Más filtros











Base de datos
Intervalo de año de publicación
2.
Gig Sanit ; (8): 52-3, 1991 Aug.
Artículo en Ruso | MEDLINE | ID: mdl-1937100

RESUMEN

Combined pulse-discrete microwave irradiation (9375 and 1765 MHz, irradiance flux density to 375 microW/cm2, by 12 h/day for 4 months) caused faint inhibition of CNS in locomotion activity and defensive reflex parameters.


Asunto(s)
Conducta Animal/efectos de la radiación , Sistema Nervioso Central/efectos de la radiación , Microondas , Animales , Femenino , Actividad Motora/efectos de la radiación , Ratas
4.
Radiobiologiia ; 30(5): 679-84, 1990.
Artículo en Ruso | MEDLINE | ID: mdl-2251358

RESUMEN

Multiple irradiation of rats with microwaves of continuous generation (2450 MHz, 1 mW/cm2) increased and of pulsed generation (3000 MHz, 0.1 to 2.5 mW/cm2) decreased the functional activity of the thyroid gland with no changes in the triiodothyronine and thyroxin in blood serum. The role of the thyroid gland in inducing behaviour effects of microwaves was demonstrated by the method of extirpation.


Asunto(s)
Microondas , Glándula Tiroides/efectos de la radiación , Animales , Conducta Animal/efectos de la radiación , Femenino , Masculino , Ratas , Ratas Endogámicas F344 , Glándula Tiroides/fisiología , Tiroxina/sangre , Triyodotironina/sangre
10.
Radiobiologiia ; 28(2): 281-3, 1988.
Artículo en Ruso | MEDLINE | ID: mdl-3363112

RESUMEN

Behavioural aspects of the effect of a single microwave exposure (2450 MHz; 1 mW/cm2; 0.27 mW/g; 7 h) were studied on albino rats using the labyrinth method and registering various constituents of the motor activity on days 1 and 4 after irradiation. No changes were found during the first 24 hours and an increase in the activity was noted on day 4 following irradiation.


Asunto(s)
Conducta Animal/efectos de la radiación , Microondas , Animales , Femenino , Ratas , Ratas Endogámicas F344 , Factores de Tiempo
12.
Radiobiologiia ; 28(1): 120-5, 1988.
Artículo en Ruso | MEDLINE | ID: mdl-3344322

RESUMEN

Albino rats were exposed to chronic (1-3 months) electromagnetic radiation (2375 MHz; 1, 5, 10, 50 and 500 microW/cm2; 7 hours a day). Inhibition of the activity during the open field tests and diminution of consolidation of the defence conditioned reflexes in a shuttle chamber occurred during exposure (5 to 500 microW/cm2) while the activity increased and reflexes consolidation gradually normalized during the post-irradiation period.


Asunto(s)
Reacción de Prevención/efectos de la radiación , Condicionamiento Clásico/efectos de la radiación , Conducta Exploratoria/efectos de la radiación , Microondas , Animales , Ratas , Factores de Tiempo
18.
Fiziol Zh SSSR Im I M Sechenova ; 63(5): 707-14, 1977 May.
Artículo en Ruso | MEDLINE | ID: mdl-196946

RESUMEN

In anesthetized dogs, i. v. injections of 0.1-1.0 mcg/kg adrenaline, noradrenaline, and isadrine evoked a raise of blood pressure in the right ventricle of the hear by 13-200%. The greatest pressor effects were obtained with isadrine, the smallest those--with noradrenaline. In experiments with closed chest animals with perfusion of lungs lobe by venous blood under constant pressure and recording of blood flow with photoelectric drop recorder, injections into perfusate of 0.02-32.0 mcg adrenaline and noradrenaline diminished blood flow and increased vascular resistance. In 1/3 of cases isadrine evoked the same reaction, in other cases it increased blood flow in perfused lobe and decreased resistance. The isadrine effect was blocked by beta--blocking agent inderal, whereas those of adrenaline and noradrenaline--by alpha-blocking drug phentolamine. Adrenaline and noradrenaline to constrict the pulmonary vessels by activating the vascular alpha-adrenoreceptors. Isadrine can dilate and constrict the lung vessels. In intact circulation isadrine seems to cause vasoconstriction and elevate blood pressure in lesser circulation.


Asunto(s)
Catecolaminas/farmacología , Circulación Pulmonar/efectos de los fármacos , Animales , Velocidad del Flujo Sanguíneo , Presión Sanguínea/efectos de los fármacos , Perros , Relación Dosis-Respuesta a Droga , Epinefrina/farmacología , Femenino , Isoproterenol/farmacología , Masculino , Norepinefrina/farmacología , Receptores Adrenérgicos alfa/efectos de los fármacos , Receptores Adrenérgicos beta/efectos de los fármacos
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA