1. Position sensitive measurement of trace lithium in the brain with NIK (neutron-induced coincidence method) in suicide.
- Author
-
Schoepfer, J., Gernhäuser, R., Lichtinger, S., Stöver, A., Bendel, M., Delbridge, C., Widmann, T., Winkler, S., and Graw, M.
- Subjects
LITHIUM ,BRAIN physiology ,SUICIDE ,AFFECTIVE disorders ,MONOVALENT cations - Abstract
Mood disorder is the leading intrinsic risk factor for suicidal ideation. Questioning any potency of mood-stabilizers, the monovalent cation lithium still holds the throne in medical psychiatric treatment. Furthermore, lithium's anti-aggressive and suicide-preventive capacity in clinical practice is well established. But little is still known about trace lithium distribution and any associated metabolic effects in the human body. We applied a new technique (neutron-induced coincidence method "NIK") utilizing the
6 Li(n,α)3 H reaction for the position sensitive, 3D spatially resolved detection of lithium traces in post-mortem human brain tissue in suicide versus control. NIK allowed, for the first time in lithium research, to collect a three dimensional high resolution map of the regional trace lithium content in the non lithium-medicated human brain. The results show an anisotropic distribution of lithium, thus indicating a homeostatic regulation under physiological conditions as a remarkable link to essentiality. In contrast to suicide we could empirically prove significantly higher endogenous lithium concentrations in white compared to gray matter as a general trend in non-suicidal individuals and lower lithium concentrations in emotion-modulating regions in suicide. [ABSTRACT FROM AUTHOR]- Published
- 2021
- Full Text
- View/download PDF