Rapid quantification of murine bile acids using liquid chromatography-tandem mass spectrometry.

Interest in bile acids (BAs) is growing due to their emerging role as signaling molecules and their association with various diseases such as colon cancer and metabolic syndrome. Analyzing BAs requires chromatographic separation of isomers, often with long run times, which hinders BA analysis in large studies. Here, we present a high-throughput method based on liquid chromatography-tandem mass spectrometry to quantify BAs in mouse samples.

Prognostic value of N-Acetylglucosaminidase and Kidney-injury-molecule-1 in TAVI patients with severe aortic stenosis.

Aim: Cardiorenal syndrome (CRS) is common in severe aortic stenosis (AS). Previous studies revealed N-Acetylglucosaminidase (NAG) and Kidney-injury-molecule-1 (KIM-1) as potential markers for CRS. The study aimed to investigate the prognostic capability of NAG, KIM-1, NT-proBNP in severe AS before TAVI.

Sphingosine 1-phosphate receptor 1signaling in macrophages reduces atherosclerosis in LDL receptor-deficient mice.

Sphingosine 1-phosphate (S1P) is a lysosphingolipid with antiatherogenic properties, but mechanisms underlying its effects remain unclear. We here investigated atherosclerosis development in cholesterol-rich diet-fed LDL receptor-deficient mice with high or low overexpression levels of S1P receptor 1 (S1P1) in macrophages. S1P1-overexpressing macrophages showed increased activity of transcription factors PU.