Synergetic effect of a DSP4-induced locus coeruleus lesion and systemic LPS exacerbates substantia nigra dopaminergic neuron loss
Feryal Şimşek, Diana Papová, Emilia Henriksson, Sonia Olmedo-Díaz, Marcus Blyberg, Roine El-Habta, Ana Virel, Sara af Bjerkén · 2025
Read Synergetic effect of a DSP4-induced locus coeruleus lesion and systemic LPS exacerbates substantia nigra dopaminergic neuron loss by Feryal Şimşek, Diana Papová, Emilia Henriksson, Sonia Olmedo-Díaz, Marcus Blyberg, Roine El-Habta, Ana Virel, Sara af Bjerkén (2025) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-12749801.txt.
Description
Parkinson's disease kills dopamine neurons in a small midbrain region, and an earlier casualty is the neighbouring cluster that supplies noradrenaline, a chemical that also calms inflammation. Feryal Şimşek and co-authors tested a two-hit idea in rats: lose the noradrenaline supply first, then face an inflammatory insult, and the dopamine cells may fall faster. They lesioned the noradrenaline cluster with a selective toxin and added a low dose of a bacterial inflammatory trigger.
Either insult alone thinned dopamine neurons in both regions. Together they destroyed more midbrain dopamine cells than either alone, an additive shove toward a tipping point. Immune signal levels shifted in both regions as well. The authors argue that protecting the noradrenaline system could matter in Parkinson's, since its loss leaves dopamine cells exposed.
Catalog record
| CREATOR | Feryal Şimşek, Diana Papová, Emilia Henriksson, Sonia Olmedo-Díaz, Marcus Blyberg, Roine El-Habta, Ana Virel, Sara af Bjerkén |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 42 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |