Abstract

Altered H2S levels and intracellular viscosity have both been seen in Parkinson's disease (PD). However, how H2S and intracellular viscosity are involved in PD pathogenesis remains unknown. Herein, a dual-function fluorescent probe DF was designed and synthesized to analyze intracellular viscosity and hydrogen sulfide. It is a near-infrared fluorescence probe with improved photostability and large Stokes shift (110 nm). The probe reveals increased viscosity and hydrogen sulfide in zebrafish model of PD for the first time.

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