Exophtalmie et cryptococcose chez une chienne

National audienc

Exophtalmie et cryptococcose chez une chienne

National audienc

Two cases of surgically treated feline patellar fractures.

peer reviewedA transverse patellar fracture in a six-month-old cat was successfully treated by figure-of-eight dorsal wiring of the patella. A longitudinal patellar fracture with luxation of a large medial fragment in a 2.5-year-old cat was treated by lateral marginal patellectomy with a positive outcome. While adding material to the few veterinary reports in that species, in this brief communication, the authors discuss the aetiology, diagnosis, and the treatment of the presented cases with regards to findings in previously published feline cases

Ruolo della P300 acustica nel monitoraggio del recupero dello stato di coscienza nei pazienti con grave cerebrolesione acquisita

si descrive la correlazione tra dati clinici e potenziali evento correlati in un gruppo di pazienti con gravi disordini di coscienz

Interaction of 12C ions with the mouse retinal response to light

Astronauts in orbit reported phosphenes varying in shape and orientation across the visual field; incidence was correlated with the radiation flux. Patients with skull tumors treated by 12C ions and volunteers whose posterior portion of the eye was exposed to highly ionizing particles in early studies reported comparable percepts. An origin in radiation activating the visual system is suggested. Bursts (~4ms) of 12C ions evoked electrophysiological mass responses comparable to those to light in the retina of anesthetized wild-type mice at threshold flux intensities consistent with the incidence observed in humans. The retinal response amplitude increased in mice with ion intensity to a maximum at ~2000 ions/burst, to decline at higher intensities; the inverted-U relationship suggests complex effects on retinal structures. Here, we show that bursts of 12C ions presented simultaneously to white light stimuli reduced the presynaptic mass response to light in the mouse retina, while increasing the postsynaptic retinal and cortical responses amplitude and the phase-locking to stimulus of cortical low frequency and gamma (~25-45Hz) responses. These findings suggest 12C ions to interfere with, rather than mimicking the light action on photoreceptors; a parallel action on other retinal structures/mechanisms resulting in cortical activation is conceivable. Electrophysiological visual testing appears applicable to monitor the radiation effects and in designing countermeasures to prevent functional visual impairment during operations in space