Juvenile shrimps (Penaeus monodon) weighing about 15-20 gms were procured from the grow-out ponds and reared under laboratory conditions. They were challenged with Vibrio parahaemolyticus MTCC 451 and their LD50 value was evaluated. The ascorbic acid and the histamine activity of both the control and experimental groups were assessed. The results showed a marked decline in both the parameters at all intervals. This reveals the pathogenesis of the inoculated bacterial strain, which affects the defense mechanism by reducing the glutathione content by the decreased level of ascorbic acid and letharginess by the decreased histamine content of the experimental prawns.
Download full-text PDF |
Source |
---|
Talanta
January 2025
College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, China.
Monitoring reactive nitrogen species (RNS) in complex biological media is essential for evaluating the health status of living organisms; however, biofouling on the sensor surface restricts its applications. To overcome this issue, we developed an antifouling electrochemical sensing platform using copper-platinum bimetallic nanoparticles/N-doped biomass porous carbon fibres (Cu-PtNPs/N-BCF) for directly detecting peroxynitrite anion (ONOO), a major type of RNS. Cyclic voltammetry measurements demonstrated that the Cu-PtNPs/N-BCF-2 nanocomposite, synthesised at a molar ratio of 1:1 between Co and Zn, exhibited exceptional electrocatalytic activity for ONOO oxidation.
View Article and Find Full Text PDFDalton Trans
January 2025
Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 22, Kerala, India.
The rise of various diseases demands the development of new agents with antioxidant, antimicrobial, anti-inflammatory, enzyme-inhibiting, and cytotoxic properties. In this study, heterocyclic Schiff base complexes of Cu(II) featuring a benzo[]thiophene moiety were synthesized and their biological activities evaluated. The complexes were characterized using FT-IR, UV-Vis, and EPR spectroscopy, TG-DTG analysis, magnetic moment measurements, molar conductivity measurements, and elemental analyses.
View Article and Find Full Text PDF<b>Background and Objective:</b> Methotrexate is an anti-metabolic medication used to treat cancer. It causes oxidative stress in nerve tissue and has neurotoxic effects. A strong antioxidant and effective free radical scavenger is vitamin C.
View Article and Find Full Text PDFJ Appl Physiol (1985)
January 2025
Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO 80309.
: Cerebrovascular disease and dementia risk increases with age and lifetime risk is greater in women. Cerebrovascular dysfunction likely precedes cerebrovascular disease and dementia but the mechanisms are incompletely understood. We hypothesized that oxidative stress mediates cerebrovascular dysfunction with human aging.
View Article and Find Full Text PDFFood Chem
January 2025
College of Life Sciences, Dalian Minzu University, Dalian 116600, China; Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian 116600, China. Electronic address:
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!