The transient products have been characterized of alpha-methylstyrene (AMS) degradation by P. aeruginosa st. 8 which utilizes AMS in high concentrations (2-10 g/l) as the only source of carbon and energy. The existence of two pathway of AMS catabolism has been demonstrated. The minor pathway is connected with accumulation of nonmetabolized products of an isopropenyl fragment. The main pathway leads through formation of hydroxylation products with subsequent meta-cleavage of aromatic ring. A possible participation of wide-specific meta-pyrocatechase in AMS catabolism has been discussed.
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J Med Chem
January 2025
Department of Medicinal Chemistry, University of Minnesota, 308 Harvard Street SE, Minneapolis, Minnesota 55455, United States.
The antibacterial agent Bio-AMS is metabolized in vivo through hydrolysis of the central acyl-sulfamide linker leading to high clearance and release of a moderately cytotoxic metabolite . Herein, we disclose analogues designed to prevent the metabolism of the central acyl-sulfamide moiety through steric hindrance or attenuation of the acyl-sulfamide electrophilicity. was identified as a metabolically stable analogue with a single-digit nanomolar dissociation constant for biotin protein ligase (BPL) and minimum inhibitory concentrations (MICs) against and ranging from 0.
View Article and Find Full Text PDFSci China Life Sci
January 2025
Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
Although disturbances in the gut microbiome have been implicated in multiple sclerosis (MS), little is known about the changes and interactions between the gut microbiome and blood metabolome, and how these changes affect disease-modifying therapy (DMT) in preventing the progression of MS. In this study, the structure and composition of the gut microbiota were evaluated using 16S rRNA gene sequencing and an untargeted metabolomics approach was used to compare the serum metabolite profiles from patients with relapsing-remitting MS (RRMS) and healthy controls (HCs). Results indicated that RRMS was characterized by phase-dependent α-phylogenetic diversity and significant disturbances in serum glycerophospholipid metabolism.
View Article and Find Full Text PDFImmunity
January 2025
Lydia Becker Institute of Immunology and Inflammation, University of Manchester, Manchester, UK; Division of Immunology, Immunity to Infection and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK; Geoffrey Jefferson Brain Research Centre, University of Manchester, Manchester, UK. Electronic address:
Interleukin-17 plays a major role in controlling adipose tissue homeostasis. In a recent study published in Nature, Douglas et al. demonstrate that time-of-day-dependent expression of interleukin-17 by tissue-resident innate lymphocytes in the adipose tissue drives circadian regulation of adipose tissue homeostasis and function.
View Article and Find Full Text PDFInt J Mol Sci
January 2025
Key Laboratory for Molecular Genetic Mechanisms and Intervention Research on High Altitude Disease of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang 712082, China.
The Qinghai-Tibet Plateau, famously known as the "Roof of the World", has witnessed a surge in individuals traveling or working there. However, a considerable percentage of these individuals may suffer from acute mountain sickness (AMS), with high-altitude pulmonary edema (HAPE) being a severe and potentially life-threatening manifestation. HAPE disrupts the balance of intrapulmonary tissue fluid, resulting in severe lung function impairment.
View Article and Find Full Text PDFMedicina (Kaunas)
December 2024
Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy.
Percutaneous coronary intervention (PCI) is a proven therapy for acute myocardial infarction (AMI) cardiogenic shock (CS). Dual anti-platelet therapy (i.e.
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