Lyssa Leitner

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Glomus cells of the rabbit carotid body were destroyed by local freezing. Electrophysiological recording of baroreceptor afferent activities showed that carotid sinus nerve regeneration was completed after 3 months. Nevertheless, ventilatory reaction as well as chemoreceptor afferent activity were no longer observed in response to the usual stimuli of(More)
Carotid bodies, together with Hering's nerves, were excised from anesthetized rabbits 24, 48 or 72 h after single reserpine injections (5 mg kg-1, i.v. or i.p.) and were superfused in vitro. Some carotid bodies were processed for formaldehyde-induced fluorescence microscopy to assess catecholamine depletion. Twenty-four hours after reserpine treatment, most(More)
We have studied the ultrastructure and physiological properties of the rabbit carotid body superfused in vitro. After 3 h superfusion, the ultrastructural features of the carotid body cells, nerve fibres and nerve endings are similar to those observed after in vivo perfusion with fixative. After 5 h superfusion, the fluorescence of type I cells and(More)
  • L M Leitner
  • 1981
Disturbed and non-disturbed subjects were compared on a Repertory Grid measure of the differentiation of values, emotions and behaviours. The disturbed subjects tended to show either excessively tightened or excessively loosened relationships between values, feelings and behaviours. Tight relationships denoted a close correspondence between a subject's(More)
(RCP), a program at the University of Minnesota that convenes the wide-­‐ranging expertise of U of M faculty and students to address strategic local projects that advance community resilience and sustainability. RCP is a program of the Center for Urban and Regional Affairs (CURA) and the Institute on the Environment. This work is licensed under the Creative(More)
The monoamine and catabolite contents of a large number of rabbit (n = 95) and cat (n = 32) carotid bodies (CBs) have been measured by high performance liquid chromatography with electrochemical detection (HPLC-ED). The dopamine (DA) content as well as that of its precursors tyrosine (TYR), dihydroxyphenylalanine (DOPA) and catabolites dihydroxyphenylacetic(More)
In rabbit carotid bodies (CBs) superfused during 1-5 h, with an air-equilibrated medium containing no tyrosine (TYR), the dopamine (DA) content decreased by approximately 60% after 1 h and remained constant afterwards. TYR and 3,4-dihydroxyphenylacetic acid (DOPAC) decreased with the same time course. Noradrenaline (NA) content exhibited a biphasic decrease(More)
The effect of different concentrations (0.001, 0.01, 0.1 and 1 mM) of dopamine on chemo-afferent activity was studied in the rabbit carotid body superfused in vitro. Excitation was the sole effect observed: it was always present for dopamine tests at 0.1 and 1 mM but was found in only 4 out of 9 tests at 0.01 mM and in 1 out of 5 tests at 0.001 mM. By(More)