Functional Role and Mutational Analysis of the Phytoene Synthase from the Halophilic Euryarchaeon in Bacterioruberin Biosynthesis.

Phytoene synthase (PSY) is one of key enzymes in carotenogenesis that catalyze two molecules of geranylgeranyl diphosphate to produce phytoene. PSY is widespread in bacteria, archaea, and eukaryotes. Currently, functional role and catalytic mechanism of archaeal PSY homologues have not been fully clarified due to the limited reports.

An interventional study of digital therapy on blood glucose and weight management in Chinese patients with type 2 diabetes.

Objective: Our study aimed to evaluate the effectiveness of a 3-months digital therapy (DTx) intervention in the real world for the management of blood glucose in 3,902 Chinese patients with type 2 diabetes (T2D) in Lingshui, Hainan.

Methods: Adults with T2D who were capable of using DTx application (app) were enrolled. Fasting blood glucose (FBG), 2-h postprandial blood glucose (2hPBG), and body weight before and after the intervention were collected.

KEAP1 mutations as key crucial prognostic biomarkers for resistance to KRAS-G12C inhibitors.

Background: KRAS-G12C inhibitors mark a notable advancement in targeted cancer therapies, yet identifying predictive biomarkers for treatment efficacy and resistance remains essential for optimizing clinical outcomes.

Methods: This systematic meta-analysis synthesized studies available through September 2024 across PubMed, Cochrane Library, SpringerLink, and Embase. Using CRISPR/Cas9 technology, this study generated cells with KEAP1 and STK11 knockouts, and utilized lentiviral vectors to overexpress PD-L1.

Norepinephrine (NE) promotes activated B cells to identify and kill effector CD8 T cells through FasL/Fas pathway in spleen mononuclear cells isolated from experimental autoimmune encephalomyelitis (EAE).

It has been reported that the nervous system can regulate immune reactions through various mechanisms. However, the role of splenic sympathetic nerve activity in the autoimmune reactions during the pathogenesis of experimental autoimmune encephalomyelitis (EAE) remained unclear. Here, we blocked the activity of the splenic sympathetic nerve and found that the number of adaptive immune cells, such as CD4 T cells, CD8 T cells and B cells, were upregulated.

Genomic analysis of Isoptericola halotolerans SM2308 reveals its potential involved in fucoidan degradation.

Marine bacteria play important roles in the degradation and recycling of algal polysaccharides. However, the marine bacteria involved in fucoidan degradation and their degradation pathways remain poorly understood. Here, we report the complete genome sequence of Isoptericola halotolerans SM2308, isolated from a brown algal sample collected from an intertidal zone of the Yellow Sea in China.