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Chloroplast antioxidant reactions associated with zinc-alleviating effects on iron toxicity in wheat seedlings.
Photosynthetica
January 2025
College of Life Science, Northwest Normal University, 730070 Lanzhou, China.
This study aimed to explore the mechanism by which Zn retards Fe toxicity by analyzing the morphological, photosynthetic, and chloroplast physiological parameters of wheat seedlings treated with either single or combined Zn and Fe. Different behavior of the seedlings was observed under untreated and treated conditions. The most discriminating quantitative traits were associated with leaf area, biomass dry mass and fresh mass, net photosynthetic rate, intercellular CO concentration, stomatal conductance, transpiration rate of seedlings, Hill reaction, Mg-ATPase and Ca-ATPase activities, malondialdehyde and O contents, and glutathione reductase, ascorbate peroxidase, peroxidase, and superoxide dismutase activities and their gene expression in the seedling chloroplast.
View Article and Find Full Text PDFToxic Effects of Cobalt on Erythroid Progenitor Cells.
Chem Res Toxicol
January 2025
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
Cobalt is a crucial trace element that widely exists in natural environments and is necessary for normal physiological function. However, excessive cobalt exposure leads to various adverse health effects, especially hematological and endocrine dysfunctions. Here, we investigated the toxicity of cobalt on early erythropoiesis by using ex vivo cultured erythroid progenitor cells (EPCs).
View Article and Find Full Text PDFThe role of serum zinc and selenium levels in etiology of febrile seizures.
Clin Exp Pediatr
January 2025
Department of Pediatrics, Division of Child Neurology, Fırat University Faculty of Medicine, Elazıg, Turkey.
Background: Febrile seizures (FSs) are the most common form of childhood seizures. Determining the role of trace elements in the pathophysiology of FSs will contribute to the management of FSs by pediatricians.
Purpose: This study aimed to investigate the effects of zinc and selenium on the nervous system and how they may influence the risk of FSs.
Te@Se Core-Shell Heterostructures with Tunable Shell Thickness for Ultra-Stable NO Detection.
ACS Sens
January 2025
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China.
An effective long-term nitrogen dioxide (NO) monitoring at trace concentration is critical for protecting the ecological environment and public health. Tellurium (Te), as a recently discovered 2D elemental material, is promising for NO detection because of its suitable band structure for gas adsorption and charge mobility. However, the high activity of Te leads to poor stability in ambient and harsh conditions, limiting its application as a gas-sensitive material.
View Article and Find Full Text PDFEffects of injectable trace minerals (Se, Zn, Cu, and Mn) administration on the immune response elicited by primary intranasal modified-live virus vaccination in dairy calves.
Vet Res Commun
January 2025
Brooksco Dairy, L.L.C. Quitman, Quitman, 31643-9403, GA, USA.
The objective was to determine the effects of injectable trace minerals (ITM, containing Se, Cu, Zn & Mn) administered at the time of primary intranasal (IN) modified-live virus (MLV) vaccination of young dairy calves on the serum neutralizing antibody (SNA) titers to Bovine herpes virus 1 (BHV1), Bovine respiratory syncytial virus (BRSV), and Bovine Parainfluenza type 3 virus (BPIV); cytokine expression in peripheral white blood cells, and BHV1-specific IgA titers in nasal secretions following the vaccination. A total of 60 calves (1 month old) were administered an IN MLV vaccine containing BHV1, BRSV, BPIV (Inforce 3) and randomly assigned to one of two experimental groups: ITM (n = 30; Multimin90, containing Se, Cu, Zn, and Mn) or SAL (n = 30; sterile saline). There was a consistent decay in virus-specific SNA titers in both groups.
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