RESUMO
The alterations taking place in the microvessels of the rat mesentery and liver under a photodynamic effect, were studied. Excitation of a photosensitizer injected preliminarily in the organism led to aggregation of thrombocytes in the lumen of hepatic and mesenteric microvessels until a complete obturation of the lumen. The dependence of the thrombocyte aggregate size on the duration of the photodynamic effect had a linear character whereas the photodynamic effect depended on the dosage of the photosensitizer. The level of fluorescence from the surface of the liver was found to decrease from the beginning of the photodynamic effect and become stable in hemostasis.
Assuntos
Fotorradiação com Hematoporfirina , Agregação Plaquetária/efeitos dos fármacos , Animais , Fígado/irrigação sanguínea , Fígado/efeitos dos fármacos , Mesentério/irrigação sanguínea , Mesentério/efeitos dos fármacos , Microcirculação/efeitos dos fármacos , Microscopia de Fluorescência , RatosRESUMO
Increase of capillaries blood volume, nuclear mass and nuclear cytoplasmic relationship and decrease of lipid content and adrenocortical sizes were determined in superficial adrenocortical layers on helium-neon LAZER irradiation of uncovered left adrenal glands in white female rats. It was confirmed by corticosteroid function increase. Similar morphometric changes were identified all over adrenocortical bundles on arsenate-helium irradiation of covered left adrenal gland from the back of the animal. According to obtained results LAZER irradiation may be recommended to use for functional stimulation of adrenal cortex.
Assuntos
Córtex Suprarrenal/efeitos da radiação , Lasers , Córtex Suprarrenal/anatomia & histologia , Córtex Suprarrenal/fisiologia , Animais , Arseniatos , Feminino , Hélio , Microcirculação/efeitos da radiação , Neônio , RatosRESUMO
In the experiments on the volunteers it has been shown that the method of dynamic radiothermography is quite sensitive for measurement of temperature fluctuations in human body. This method makes it possible to register the changes of the temperature in inner organs using the probes placed on body surface. Some volunteers drank hot or cold water, some volunteers drank glucose solution, others got the dose of low laser radiation upon the liver. In the case of cold water liver temperature fell, in all other cases liver temperature rose. The results of the dynamic radiothermography of human liver allow us to suppose that low laser radiation of this organ leads to the stimulation of liver blood flow.