Revealing NOD1-Activating Gram-Positive Gut Microbiota via in Vivo Labeling with a meso-Diaminopimelic Acid Probe.

As an important receptor in a host's immune and metabolic systems, NOD1 is usually activated by Gram-negative bacteria having -diaminopimelic acid (-DAP) in their peptidoglycan (PGN). But some atypical Gram-positive bacteria also contain -DAP in their PGN, giving them the potential to activate NOD1. The prevalence of -DAP-type Gram-positive bacteria in the gut, however, remains largely unknown.

Effect of the stability of the poly(gamma-glutamic acid)-ACP dispersion system on biomimetic mineralization of type I collagen.

: To explore the relationship between the stability of poly(gamma-glutamic acid) (γ-PGA) dispersion systems with γ-PGA of different molecular weights (MWs) and concentrations and type I collagen mineralization. : γ-PGA was used as a noncollagenous protein (NCP) analogue to regulate the stability of supersaturated γ-PGA-stabilized amorphous calcium phosphate (PGA-ACP) solutions by changing the γ-PGA MW (2, 10, 100, 200 and 500 kDa) and concentration (400, 500 and 600 μg mL). Then, the optical density (OD) at 72 h was measured to determine the PGA-ACP solution stability.

Reaction mechanism with indano[60]fullerene bromide for evaporable fullerene derivatives.

Indano[60]fullerene bromide was isolated as a key intermediate in the synthesis of indano[60]fullerene ketone, an evaporable fullerene derivative. Based on the identified reaction mechanism, aqueous hydrobromic acid was used to achieve reproducible and high-yielding reactions. A scalable one-pot reaction from aryl[60]fullerenyl dimers to indano[60]fullerene ketone was also demonstrated.

A comparative analysis of Marburg virus-infected bat and human models from public high-throughput sequencing data.

Marburg virus (MARV) disease (MVD) is an uncommon yet serious viral hemorrhagic fever that impacts humans and non-human primates. In humans, infection by the MARV is marked by rapid onset, high transmissibility, and elevated mortality rates, presenting considerable obstacles to the development of vaccines and treatments. Bats, particularly , are suspected to be natural hosts of MARV.

Repetitive transcranial magnetic stimulation strategies for post-stroke dysphagia: A systematic review and network meta-analysis.

Objective: Repetitive transcranial magnetic stimulation (rTMS) is a promising approach in improving swallowing function after stroke. However, comparative efficacy of different rTMS protocols for post-stroke dysphagia (PSD) remains unclear.

Data Sources: PubMed, Embase and Cochrane database were systematically searched for eligible random controlled trials (RCTs) from inception to 30 August 2024.