RESUMEN
The results of investigations of certain aspects of the effect of magnetic fields on the nervous tissue are presented. The time course of pathomorphological reactions of the nerve cells and neuropile of the parietal cerebral cortex of rats receiving a single 61/2-hour treatment with alternating magnetic field (induction 20 mT, frequency 50 Hz) was studied. Changes in the microcirculatory bed of the cortex were observed manifested mainly by hydropic disorders in the cellular and fibrous components of the vessel wall. The effect of magnetic fields may be probably characterized by various hydropic changes in the cells, glial elements, and dendritic apparatus realized through disorders in the water-salt balance in cells.
Asunto(s)
Corteza Cerebral/patología , Campos Electromagnéticos/efectos adversos , Fenómenos Electromagnéticos/efectos adversos , Neuronas/patología , Animales , Corteza Cerebral/irrigación sanguínea , Dendritas/patología , Masculino , Microcirculación/patología , Neuroglía/patología , Ratas , Factores de TiempoRESUMEN
Examination of 110 patients with chronic opisthorchiasis lasting for over 5 years has revealed the syndrome of malabsorption by means of the d-xylose test, Kamer's method and radioindication. Dysbacteriosis, hypokinesia of the small intestine, reduction of the cholate-cholesterol ratio of the bile, structural alterations in the small intestine mucosa were found to be implicated in the genesis of malabsorption. The helminthologic recovery of the patients with protracted opisthorchiasis did not entail complete normalization of the function of the small intestine and thus required therapeutic correction.
Asunto(s)
Absorción Intestinal , Parasitosis Intestinales/fisiopatología , Intestino Delgado/fisiopatología , Opistorquiasis/fisiopatología , Adolescente , Adulto , Humanos , PeristaltismoAsunto(s)
Traumatismos del Nacimiento/complicaciones , Plexo Braquial/lesiones , Trastornos Cerebrovasculares/etiología , Parálisis/etiología , Traumatismos de la Médula Espinal/diagnóstico , Traumatismos Vertebrales/complicaciones , Adolescente , Células del Asta Anterior , Traumatismos del Nacimiento/diagnóstico , Trastornos Cerebrovasculares/complicaciones , Trastornos Cerebrovasculares/diagnóstico , Niño , Preescolar , Diagnóstico Diferencial , Electromiografía , Humanos , Lactante , Isquemia/etiología , Masculino , Pletismografía de Impedancia , Radiografía , Espasmo/etiología , Médula Espinal/irrigación sanguínea , Traumatismos Vertebrales/diagnóstico por imagen , Síndrome , Arteria Vertebral/lesionesAsunto(s)
Traumatismos del Nacimiento/diagnóstico por imagen , Traumatismos de la Médula Espinal/congénito , Traumatismos Abdominales/complicaciones , Asfixia Neonatal/complicaciones , Traumatismos del Nacimiento/complicaciones , Vértebras Cervicales/lesiones , Niño , Preescolar , Femenino , Humanos , Lactante , Recién Nacido , Enfermedades del Prematuro , Presentación en Trabajo de Parto , Masculino , Complicaciones del Trabajo de Parto , Preeclampsia , Embarazo , Complicaciones del Embarazo , Traumatismos de la Médula Espinal/complicaciones , Traumatismos de la Médula Espinal/diagnóstico por imagen , Traumatismos de la Médula Espinal/etiología , Traumatismos Vertebrales/complicaciones , Tomografía por Rayos XAsunto(s)
Hígado/fisiopatología , Opistorquiasis/fisiopatología , Adolescente , Adulto , Biopsia con Aguja , Enfermedad Crónica , Femenino , Hepatitis/diagnóstico , Hepatitis/etiología , Hepatitis Crónica/diagnóstico , Hepatitis Crónica/etiología , Humanos , Cirrosis Hepática/diagnóstico , Cirrosis Hepática/etiología , Masculino , Persona de Mediana Edad , Opistorquiasis/complicacionesAsunto(s)
Aminofilina/administración & dosificación , Traumatismos del Nacimiento/complicaciones , Espasticidad Muscular/tratamiento farmacológico , Ácidos Nicotínicos/administración & dosificación , Parafina/administración & dosificación , Traumatismos de la Médula Espinal/complicaciones , Aminofilina/uso terapéutico , Niño , Preescolar , Quimioterapia Combinada , Humanos , Lactante , Iontoforesis , Espasticidad Muscular/etiología , Ácidos Nicotínicos/uso terapéutico , Ceras/administración & dosificaciónRESUMEN
After whole-body X-irradiation with a dose of 5 Gy, the content of limbic neocortex cells of altered neurocytes markedly increases: many of the disorders in their structure are reversible. In the inner cell complex the neurocytes with "dark type" changes are frequent and, in most cases, irreversible. Different types of gliocytes respond in a different manner to the effect of ionizing radiation.
Asunto(s)
Sistema Límbico/efectos de la radiación , Animales , Masculino , Neuronas/efectos de la radiación , Ratas , Irradiación Corporal TotalRESUMEN
The state of the parietal cortex neural elements in the white rat brains exposed to a total 5-fold effect lasting for 6.5 hours and to a single continuous 24-hour's effect of the magnetic field (strength 20, 40, 70 mT, frequency 50 Hz) have been studied light optically and electron microscopically. The most manifested pathomorphological changes are observed after the 5-fold effect lasting for 6.5 hours. The cortical vessel walls, filamentous astrocytes connected with them, as well as dendrites and spiculae are evidently the most injured formations and perhaps are the first to participate in the response reaction mechanism to the effect of the magnetic field. Hydropic changes appearing everywhere speak in favour of the water-electrolytic balance disturbance, evidently this phenomenon is specific for the magnetic field effects.
Asunto(s)
Magnetismo , Neuronas/patología , Animales , Corteza Cerebral/patología , Masculino , Microscopía Electrónica , Ratas , Factores de TiempoRESUMEN
The irreversible changes accompanied by the impairment of the structure and architectonics of the neurons have been established to appear in the cerebrum parietal cortex of the white rats under the total fivefold 6,5 hr force of alternating magnetic field (20 mT, f = 50 hz). The preliminary hypodermic administration of sodium glutamate (1 mg/g mass of the body) to the animals decreases considerably the damage of the cerebral cortex neural elements.