Urocortin-positive nerve fibres and cells are present in the human choroid

Conclusion
UCN is part of the choroidal innervation. UCN+/VAChT+ fibres could derive from the few cells of the PPG or cells of the CIL, if these indeed supply the choroid. UCN+/SP+ fibres might originate from ICN, or the few UCN+ cells detected in the TRI. Further studies are necessary to establish UCN function in the choroid and its implication for choroidal autonomic control.

Source: British Journal of Ophthalmology - September 21, 2023 Category: Opthalmology Authors: Kaser-Eichberger, A., Platzl, C., Wolfmeier, H., Trost, A., Horn, A., Barnerssoi, M., Strohmaier, C., Schroedl, F. Tags: Original articles - Laboratory science Source Type: research