Alterations in Intestinal Microbiota Composition in Mice Treated With Vitamin D3 or Cathelicidin.

Gut microbiota is a complex aggregation of microbial organisms, which offers diverse protective benefits to the host. Dysbiosis of intestinal microbiota is frequently associated with many diseases. Vitamin D3 (VD), which was originally associated with bone health, also possesses antimicrobial activities and can act through antimicrobial peptide.

Corrigendum: Metagenome Analysis of Intestinal Bacteria in Healthy People, Patients With Inflammatory Bowel Disease and Colorectal Cancer.

[This corrects the article DOI: 10.3389/fcimb.2021.

Metagenome Analysis of Intestinal Bacteria in Healthy People, Patients With Inflammatory Bowel Disease and Colorectal Cancer.

Objectives: Several reports suggesting that the intestinal microbiome plays a key role in the development of inflammatory bowel disease (IBD) or colorectal cancer (CRC), but the changes of intestinal bacteria in healthy people, patients with IBD and CRC are not fully explained. The study aimed to investigate changes of intestinal bacteria in healthy subjects, patients with IBD, and patients with CRC.

Materials: We collected data from the European Nucleotide Archive on healthy people and patients with colorectal cancer with the study accession number PRJEB6070, PRJEB7774, PRJEB27928, PRJEB12449, and PRJEB10878, collected IBD patient data from the Integrated Human Microbiome Project from the Human Microbiome Project Data Portal.

mC RNA Methylation Primarily Affects the ErbB and PI3K-Akt Signaling Pathways in Gastrointestinal Cancer.

5-Methylcytosine (mC) is a kind of methylation modification that occurs in both DNA and RNA and is present in the highly abundant tRNA and rRNA. It has an important impact on various human diseases including cancer. The function of mC is modulated by regulatory proteins, including methyltransferases (writers) and special binding proteins (readers).

Characterization of chemical composition and prebiotic effect of a dietary medicinal plant Penthorum chinense Pursh.

Penthorum chinense Pursh is a dietary medicinal plant widely distributed in Asia-Pacific countries. The present study aims to profile the chemical constituents of P. chinense and investigate its prebiotic role in modulating gut microbiota.

The molecular landscape of histone lysine methyltransferases and demethylases in non-small cell lung cancer.

: Lung cancer is one of the most common malignant tumors. Histone methylation was reported to regulate the expression of a variety of genes in cancer. However, comprehensive understanding of the expression profiles of histone methyltransferases and demethylases in lung cancer is still lacking.

Expression of CD9 and CD81 in bovine germinal vesicle oocytes after vitrification followed by in vitro maturation.

The present study aimed to investigate the effect of vitrification on the expression of fertilization related genes (CD9 and CD81) and DNA methyl transferases (DNMT1 and DNMT3b) in bovine germinal vesicle (GV) oocytes and their resulting metaphase Ⅱ (MⅡ) stages after in vitro maturation culture. GV oocytes were vitrified using the open-pulled straw method; after warming, they were cultured in vitro. The vitrified-warmed GV oocytes and more developed MII oocytes were used to calculate the maturation rates (first polar body extrusion under a stereomicroscopy), and to detect mRNA expression (qRT-PCR).

Improved development by melatonin treatment after vitrification of mouse metaphase II oocytes.

The study was aimed to investigate the effect of melatonin on the development potential of mouse MII oocytes after cryopreservation. Mouse MII oocytes were subjected first to vitrification/warming and 2 h of in vitro culture (phase 1), then to parthenogenetic activation (PA) followed by in vitro culture of parthenogenetic embryos (phase 2). Different concentrations of melatonin (0, 10, 10 mol/L) were added to the medium during either phase 1, phase 2 or both phases.