During retinal visual processing, rod bipolar cells (RBC) transfer scotopic signals from rods to AII amacrine cells as second-order neurons. Elucidation of the RBC's excitation/inhibition is essential for understanding the visual signal transmission. Excitation mechanisms via mGluR6 and voltage-gated Ca2+ channels in the RBCs and GABAergic inhibitory synaptic inputs have been studied in previous studies.
View Article and Find Full Text PDFThe human body reacts to tissue damage by generating damage-associated molecular patterns (DAMPs) that activate sterile immune responses. To date, little is known about how DAMPs are removed to avoid excessive immune responses. Here, we show that proteasomal dysfunction induces the release of mitochondrial DNA (mtDNA) as a DAMP that activates the cyclic GMP-AMP synthase (cGAS)-stimulator of interferon gene (STING) pathway and is subsequently degraded through the N-degron pathway.
View Article and Find Full Text PDFBackground: Gastrointestinal perforation (GIP) is a life-threatening condition that necessitates immediate surgical intervention. This study aims to identify prognostic factors in patients with GIP treated within a standardized acute care surgery (ACS) framework.
Materials And Methods: This single center retrospective cohort study analyzed patients diagnosed with GIP who underwent emergent surgery and were admitted to the intensive care unit between January 2013 and March 2023.
Romosozumab, which is approved for the treatment of osteoporosis, has a dual-action mechanism that promotes bone formation and inhibits bone resorption. However, its association with an increased risk of major adverse cardiovascular events, as highlighted in the ARCH I study, raises concerns. The underlying pathophysiological mechanisms, possibly involving changes in platelet dynamics, are yet to be fully elucidated.
View Article and Find Full Text PDFPrcis: The lamina cribrosa microvasculature reduction was associated with the posterior deformation of lamina cribrosa, as well as the functional deterioration, in all spectrums of open-angle glaucoma.
Purpose: To investigate the factors associated with the lamina cribrosa vessel density (LCVD) determined via swept-source optical coherence tomography angiography (SS-OCTA).
Materials And Methods: The optic nerve head (ONH) scan was obtained using SS-OCTA (PLEX Elite 9000; Carl Zeiss Meditec, Inc.