Various microbial taxa couple arsenic transformation to nitrogen and carbon cycling in paddy soils.

Background: Arsenic (As) metabolism pathways and their coupling to nitrogen (N) and carbon (C) cycling contribute to elemental biogeochemical cycling. However, how whole-microbial communities respond to As stress and which taxa are the predominant As-transforming bacteria or archaea in situ remains unclear. Hence, by constructing and applying ROCker profiles to precisely detect and quantify As oxidation (aioA, arxA) and reduction (arrA, arsC1, arsC2) genes in short-read metagenomic and metatranscriptomic datasets, we investigated the dominant microbial communities involved in arsenite (As(III)) oxidation and arsenate (As(V)) reduction and revealed their potential pathways for coupling As with N and C in situ in rice paddies.

Arsenic Reduces Methane Emissions from Paddy Soils: Insights from Continental Investigation and Laboratory Incubations.

Arsenic (As) contamination and methane (CH) emissions co-occur in rice paddies. However, how As impacts CH production, oxidation, and emission dynamics is unknown. Here, we investigated the abundances and activities of CH-cycling microbes from 132 paddy soils with different As concentrations across continental China using metagenomics and the reverse transcription polymerase chain reaction.

Correlation between red blood cell distribution width and cardiovascular events in the patients receiving peritoneal dialysis: A Strobe-compliant article.

There are few studies on the correlation between red blood cell distribution width (RDW) and cardiovascular events in the patients receiving peritoneal dialysis (PD). We explored the correlation between RDW and cardiovascular events in PD patients and possible mechanism.A total of 138 PD patients were divided into RDW < 15% group (n = 104) and RDW ≥ 15% group (n = 34).