Publications by authors named "S Christoph Hartmann"

Hypothesis: Water drop infiltration into a thin amphiphilic porous medium is influenced by wettability. Due to the reorganization of amphiphilic matter in contact with water, polar interaction changes the wettability in the bulk porous medium and at the liquid/porous substrate interface. To model out of equilibrium water transfer, we propose a thermodynamics approach derived from Onsager's principle.

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Article Synopsis
  • Individuals at ultra-high risk (UHR) for psychosis with persistent attenuated psychotic symptoms (APS) show worse clinical and functional outcomes compared to those who remit, closely resembling individuals who transition to psychosis.
  • After an initial period, the symptom and functioning trajectories for those with persistent APS diverge quickly from those who remit.
  • Prediction of non-remission improves significantly with longitudinal data (6-month follow-up) rather than relying on baseline data alone, indicating the need for consistent monitoring and intervention for UHR individuals with persistent APS.
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Leucine-rich repeat-containing G protein-coupled receptors 5/4 (LGR5/LGR4) are critical stem cell markers in epithelial tissues including intestine. They agonise wingless-related integration site (WNT) signalling. Until now, LGR5/LGR4 were uncharacterised in placenta, where analogous functions may exist.

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Class A G protein-coupled receptors (GPCRs) are key mediators in numerous signaling pathways and important drug targets for several diseases. A major shortcoming in GPCR ligand screening is the detection limit for weak binding molecules, which is especially critical for poorly druggable GPCRs. Here, we present a proximity-based screening system for class A GPCRs, which adopts the natural two-step activation mechanism of class B GPCRs.

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Channelrhodopsins, light-gated cation channels, enable precise control of neural cell depolarization or hyperpolarization with light in the field of optogenetics. This study integrates time-resolved serial crystallography and atomistic molecular dynamics (MD) simulations to resolve the structural changes during C1C2 channelrhodopsin activation. Our observations reveal that within the crystal environment, C1C2 predominantly remains in a light-activated state with characteristics of the M intermediate.

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