Can humidifier reservoir bacteria colonize the circuit during mechanical ventilation: An in vitro study.

Background: Although the circuit condensate, an ideal bacterial reservoir during mechanical ventilation, may flow into the humidifier reservoir, no studies have investigated if humidifier reservoir colonized bacteria colonize other circuit locations with airflow.

Aim: We aimed to prove whether the humidifier reservoir colonized bacteria colonize other circuit locations with airflow and provide some advice on the disposal of condensate in the clinical setting.

Study Design: An in vitro experiment was conducted.

[Ecological Toxic Effect of Perfluorinated Compounds on Fish Based on Meta-analysis].

Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are refractory organic pollutants, which are characterized by ubiquity, bioaccumulation, and biological toxicity. To explore the biotoxic effects of PFAS on fish, this study reviewed 64 publications. The toxicity of PFAS on functional traits of fish exposed to PFAS was analyzed based on Meta-analysis combined with effect sizes, which provided reference for the toxicity assessment of PFAS and was conducive to the priority control and management of PFAS pollution.

Transcriptome analysis of pacific white shrimp (Penaeus vannamei) intestines and hepatopancreas in response to Enterocytozoon hepatopenaei (EHP) infection.

Penaeus vannamei is the most economically important species of shrimp cultured worldwide. Enterocytozoon hepatopenaei (EHP) is an emerging pathogen that severely affects the growth and development of shrimps. In this study, the transcriptome differences between EHP-infected and uninfected shrimp were investigated through next-generation sequencing.