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Iron limitation triggers roseoceramide biosynthesis and membrane remodeling in marine roseobacter.
Proc Natl Acad Sci U S A
January 2025
Department of Chemistry, Princeton University, Princeton, NJ 08544.
Chemical communication between marine bacteria and their algal hosts drives population dynamics and ultimately determines the fate of major biogeochemical cycles in the ocean. To gain deeper insights into this small molecule exchange, we screened niche-specific metabolites as potential modulators of the secondary metabolome of the roseobacter, . Metabolomic analysis led to the identification of a group of cryptic lipids that we have termed roseoceramides.
View Article and Find Full Text PDFManganese exposure induces parkinsonism-like symptoms by Serpina3n-TFEB-v/p-ATPase signaling mediated lysosomal dysfunction.
Cell Biol Toxicol
January 2025
Department of Environmental Medicine, School of Medicine, Chongqing University, Chongqing, China.
Manganese (Mn) is a neurotoxin that has been etiologically linked to the development of neurodegenerative diseases in the case of overexposure. It is widely accepted that overexposure to Mn leads to manganism, which has clinical symptoms similar to Parkinson's disease (PD), and is referred to as parkinsonism. Astrocytes have been reported to scavenge and degrade extracellular α-synuclein (α-Syn) in the brain.
View Article and Find Full Text PDFDeciphering the mechanism for encapsulation of MOF (Fe-glutaric acid) onto Se/SnO embedded CMC for effective aqueous sequestration of pharmaceutical pollutant via adsorption.
Environ Monit Assess
January 2025
Department of Botany, Bacha Khan University, Charsadda, Charsadda, 24420, Khyber Pakhtunkhwa, Pakistan.
Wastewater is commonly contaminated with many pharmaceutical pollutants, so an efficient purification method is required for their removal from wastewater. In this regard, an innovative tertiary Se/SnO@CMC/Fe-GA nanocomposite was synthesized through encapsulation of metal organic frameworks (Fe-glutaric acid) onto Se/SnO-embedded-sodium carboxy methyl cellulose matrix to thoroughly evaluate its effectiveness for adsorption of levofloxacin drug from wastewater. The prepared Se/SnO@CMC/Fe-GA nanocomposite was analyzed via UV-Vis spectroscopy, Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), thermo gravimetric analysis (TGA), energy dispersive X-ray (EDX), and X-ray diffraction (XRD) to valuate optical property, size, morphology, thermal stability, and chemical composition.
View Article and Find Full Text PDFIntranasal iron administration induces iron deposition, immunoactivation, and cell-specific vulnerability in the olfactory bulb of C57BL/6 mice.
Zool Res
January 2025
School of Basic Medicine, Institute of Brain Science and Disease, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Brain Diseases, Qingdao University, Qingdao, Shandong, 266071, China. E-mail:
Iron is the most abundant transition metal in the brain and is essential for brain development and neuronal function; however, its abnormal accumulation is also implicated in various neurological disorders. The olfactory bulb (OB), an early target in neurodegenerative diseases, acts as a gateway for environmental toxins and contains diverse neuronal populations with distinct roles. This study explored the cell-specific vulnerability to iron in the OB using a mouse model of intranasal administration of ferric ammonium citrate (FAC).
View Article and Find Full Text PDFFluorometric Turn Off Detection of Cu and Pd Ions Using 1-(Imidazo[5,1-a]isoquinolin-3-yl)naphthalen-2-ol.
Luminescence
January 2025
Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam, India.
The fused heterocycle 1-(imidazo[5,1-a]isoquinolin-3-yl)naphthalen-2-ol (LH) has been synthesized and characterized by spectroscopic methods. Probe LH upon irradiation with λ = 336 nm exhibited strong fluorescence with λ = 437 nm in MeOH/HEPES buffer (5 mM, pH = 7.4, 2:8, v/v).
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