title: [Numerical variation in synaptic ribbons of rat pinealocytes under magnetic storm conditions and on calm days].
abstract: Based on the hypothesis of the magnetoreceptor function of the pineal gland, a comparative study has been made, with electronic microscopy, of the numerical variations of the synaptic ribbons of the pinealocytes (indicating the cellular metabolic activity) of the groups of rats, under magnetic storm conditions and in calm days. In this quantitative study it was established that the incidence of synaptic ribbons per each 20,000 microns 2 of pineal tissue was smaller in the group of animals sacrificed during geomagnetic storms, as compared with the other group of animals sacrificed in calm periods (P less than 0.001). It was suggested that the synaptic ribbons may be morphological indicators of the pineal activity, with respect to the variations of the geomagnetic field.
authors.affiliation: Bioelectromagnetics Institute Alonso de Santa Cruz, Department of Medical Specialities, School of Medicine, University of Alcalá de Henares, Madrid, Spain.
authors.forename: J L
authors.initials: JL
authors.lastname: Bardasano
authors.forename: S
authors.initials: S
authors.lastname: Cos
authors.forename: M L
authors.initials: ML
authors.lastname: Picazo
mesh_terms: D000818:Animals; D004574:Electromagnetic Fields; D055590:Electromagnetic Phenomena; D005260:Female; D010870:Pineal Gland / Q000502:physiology* / Q000648:ultrastructure; D051381:Rats; D011919:Rats, Inbred Strains; D013569:Synapses / Q000502:physiology* / Q000648:ultrastructure; D014887:Weather
vernacular_title: Veränderungen der Anzahl synaptischer Bänder in der Pinealdrüse der Ratte an geomagnetischen Ruhetagen und Gewittertagen.