What Two-Dimensional Electronic Spectroscopy Can Tell Us about Energy Transfer in Dendrimers: Ab Initio Simulations.

Two-dimensional (2D) electronic spectra of the phenylene ethynylene dendrimer with 2-ring and 3-ring branches were evaluated by combining the on-the-fly trajectory surface hopping nonadiabatic dynamics and the doorway-window simulation protocol. The ground state bleach (GSB), stimulated emission (SE), and excited-state absorption (ESA) contributions to the 2D signal were obtained and carefully analyzed. The results demonstrate that the ultrafast intramolecular nonadiabatic excited-state energy transfer (EET) from the 2-ring to the 3-ring units is comprehensively characterized by the SE and ESA signals.

The Burden of Hepatitis B and C in Asia, 1990-2019: An Update Analysis From the Global Burden of Disease Study 2019.

Aim: This research was aimed to uncover the hepatitis B virus (HBV) and hepatitis C virus (HCV) related diseases burden in Asia over the past 3 decades, estimating from the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2019.

Methods: Age-standardised rates, case numbers of prevalence, disability-adjusted life-years (DALYs), incidence and deaths with 95% uncertainty intervals (UI) for HBV/HCV-related diseases from 1990 to 2019 were derived from GBD 2019 database, with the estimated annual percentage changes (EAPCs) calculated. Our analysis also encompassed the association between the Sociodemographic Index (SDI) and the burden of HBV/HCV-related diseases, future disease burden predictions in six selected countries and various risk factors.

Ischemic Area-Targeting and Self-Monitoring Nanoprobes Ameliorate Myocardial Ischemia/Reperfusion Injury by Scavenging ROS and Counteracting Cardiac Inflammation.

Precise and effective management of myocardial ischemia/reperfusion injury (MIRI) is still a formidable challenge in clinical practice. Additionally, real-time monitoring of drug aggregation in the MIRI region remains an open question. Herein, a drug delivery system, hesperadin and ICG assembled in PLGA-Se-Se-PEG-IMTP (HI@PSeP-IMTP), is designed to deliver hesperadin and ICG to the MIRI region for in vivo optical imaging tracking and to ameliorate MIRI.

Ahmed glaucoma valve implant for refractory glaucoma in children: A systematic review and meta-analysis.

Purpose: The aim of this study was to evaluate the efficacy and safety of the Ahmed glaucoma valve in pediatric patients with refractory glaucoma.

Methods: A comprehensive literature search was conducted across multiple major databases, including PubMed, Embase, the Cochrane Library of Systematic Reviews, Science Direct, China's National Knowledge Infrastructure, and the Wanfang database. We retrieved studies published before December 2022 that met the inclusion criteria, including clinical controlled trials (randomized controlled trials) and clinical noncontrolled trials (non-randomized controlled trials) on the use of Ahmed glaucoma valve in pediatric patients with refractory glaucoma.

High paracrine activity of hADSCs cartilage microtissues inhibits extracellular matrix degradation and promotes cartilage regeneration.

Due to its unique structure, articular cartilage has limited self-repair capacity. Microtissues are tiny tissue clusters that can mimic the function of target organs or tissues. Using cells alone for microtissue construction often results in the formation of necrotic cores.