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Send reply to: Parkinson's Information Exchange Network <[log in to unmask]> From: Ivan M Suzman <[log in to unmask]> Subject: Alive or dead?? a PWP's Substantia Nigra - 4 more questions To: [log in to unmask] Date sent: Tue, 21 Mar 2000 12:07:31 -0500 > 1) Are the various pigmentation states of the substantia > nigra known through post-mortem study, primarily, or have there been > studies where this brain tissue has been observed in > persons who are alive? Do these tissues come from autopsy? > From surgical theaters? Autopsy > > 2) Do surgeons see these mid brain tissues regularly? > Rarely? Almost never? Never in the live patient. The area is inaccessible surgically. > > 3) In examinations after death, would the > color of the substantia nigra be different from what it was during life? > If different, could this difference be accounted for either > by the deposit of pigment(s), or by the precipitation of protein? > I don't know. Best, Bob ********************************************** Robert A. Fink, M. D., F.A.C.S., P. C. 2500 Milvia Street Suite 222 Berkeley, California 94704-2636 Telephone: 510-849-2555 FAX: 510-849-2557 WWW: http://www.dovecom.com/rafink/ mailto:[log in to unmask] "Ex Tristitia Virtus" *********************************************