Chitinase-3-like Protein 1 Reduces the Stability of Atherosclerotic Plaque via Impairing Macrophagic Efferocytosis.

CHI3L1 is strongly associated with atherosclerosis, but its role in macrophages remains unknown. In this study, we observed a significant up-regulation of CHI3L1 in both carotid plaques and serum of symptomatic patients, and demonstrated that CHI3L1 impairs the efferocytosis of macrophages by down-regulating crucial efferocytic mediator MFGE8 through inhibiting ATF2, which binds directly to the enhancer of MFGE8. In human plaques, we observed a negative correlation between CHI3L1 expression and both ATF2 and MFGE8 levels, further proved their involvement in plaque destabilization.

Bisphenol S accelerates the progression of high fat diet-induced NAFLD by triggering ferroptosis via regulating HMGCS2.

Bisphenol S (BPS) is a widely detected environmental toxin with the potential to increase the risk of non-alcoholic fatty liver disease (NAFLD). However, the effects of BPS on the progression of high fat diet (HFD)-induced NAFLD remain unclear. This study aimed to explore the role and underlying mechanisms of action of BPS in HFD-induced NAFLD.

Fraxin inhibits ovariectomized-induced bone loss and osteoclastogenesis by suppressing ROS activity.

Osteoporosis is characterized by increased osteoclast activity, which is strongly associated with increased levels of reactive oxygen species (ROS). Fraxin, a natural coumarin glycoside, has shown anti-inflammatory and antioxidant properties, but its effects on bone homeostasis are obscure. The effects of fraxin on osteoclast formation and activation were measured via an in vitro osteoclastogenesis assay.

The molar dose of FAPI administered impacts on the FAP-targeted PET imaging and therapy in mouse syngeneic tumor models.

Purpose: Since fibroblast activation protein (FAP), one predominant biomarker of cancer associated fibroblasts (CAFs), is highly expressed in the tumor stroma of various epidermal-derived cancers, targeting FAP for tumor diagnosis and treatment has shown substantial potentials in both preclinical and clinical studies. However, in preclinical settings, tumor-bearing mice exhibit relatively low absolute FAP expression levels, leading to challenges in acquiring high-quality PET images using radiolabeled FAP ligands (FAPIs) with low molar activity, because of which a saturation effect in imaging is prone to happen. Moreover, how exactly the molar dose of FAPI administered to a mouse influences the targeted PET imaging and radiotherapy remains unclear now.

Underwater moving target detection using online robust principal component analysis and multimodal anomaly detection.

In shallow water, reverberation complicates the detection of low-intensity, variable-echo moving targets, such as divers. Traditional methods often fail to distinguish these targets from reverberation, and data-driven methods are constrained by the limited data on intruding targets. This paper introduces the online robust principal component analysis and multimodal anomaly detection (ORMAD) method to address these challenges.