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The effect of inhaled nitric oxide treatment on biomarkers of oxidative/nitrosative damage to proteins and DNA/RNA.
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Neonatal Research Group, Health Research Institute Hospital La Fe (IISLAFE), Avda Fernando Abril Martorell 106, 46026, Valencia, Spain; Spanish Network in Maternal, Neonatal, Child and Developmental Health Research (RICORS SAMID) (RD24/0013/0014), Instituto de Salud Carlos III, Madrid, Spain; Division of Neonatology, University & Polytechnic Hospital La Fe, Avda Fernando Abril Martorell 106, 46026, Valencia, Spain. Electronic address:
Inhaled nitric oxide (iNO) is a selective pulmonary vasodilator that is used as a treatment for persistent pulmonary hypertension in neonates (PPHN) with hypoxic respiratory failure. The generation of reactive oxygen and nitrogen species might induce oxidative/nitrosative damage to multiple organs. There is an increasing scientific and clinical interest in the determination of specific biomarkers to measure the degree of oxidative/nitrosative stress in non-invasively collected biofluids.
View Article and Find Full Text PDFπ-π stacking interactions in tryptophan-lumiflavin-tyrosine: a structural model for riboflavin insertion into riboflavin-binding protein.
J Mol Model
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Department of Natural Sciences, University of Michigan-Dearborn, Dearborn, MI, 48128, USA.
Context: Riboflavin (RF), also known as B2 vitamin, is the precursor to flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD), two co-enzymes involved in many electron transport processes. Interactions of the isoalloxazine ring, common to all three compounds, are of great interest due to their biological function in flavoproteins and relevance in the transport by the carrier protein leading to development of drug delivery strategies and non-invasive diagnostics techniques. Based on protein crystallographic data, a computational investigation of the interactions in the complexes between lumiflavin, a model compound, and aromatic amino acids, tyrosine and tryptophan, was pursued with the goal of characterizing noncovalent interactions.
View Article and Find Full Text PDFHDAC6 inhibitor-loaded brain-targeted nanocarrier-mediated neuroprotection in methamphetamine-driven Parkinson's disease.
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Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon, 16419, Republic of Korea; School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea. Electronic address:
The dynamic equilibrium between acetylation and deacetylation is vital for cellular homeostasis. Parkinson's disease (PD), a neurodegenerative disorder marked by α-synuclein (α-syn) accumulation and dopaminergic neuron loss in the substantia nigra, is associated with a disruption of this balance. Therefore, correcting this imbalance with histone deacetylase (HDAC) inhibitors represents a promising treatment strategy for PD.
View Article and Find Full Text PDFFe Single-Atom and Fe Cluster-Coupled N, S Co-doped Carbon Nanomaterial-Based Flexible Electrochemical Sweat Biosensor for the Real-Time Analysis of Uric Acid and Tyrosine.
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Hainan International Joint Research Center of Marine Advanced Photoelectric Functional Materials, Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China.
Fe single-atom and Fe cluster-coupled N, S co-doped carbon nanomaterials (Fe-FeO-NSC) were prepared through a two-step high-temperature pyrolysis process using Gelidium corneum enriched with C, Fe, O, N, and S as precursors. The analysis by aberration-corrected scanning transmission electron microscopy and X-ray absorption spectroscopy revealed the presence of single-atom Fe in Fe-N coordination structures, along with small clusters as Fe-O-coordinated FeO. Single-atom Fe in the form of Fe/Fe provides more electrocatalytic active sites, which synergistically accelerates the charge migration process in the assembly of Fe-FeO-NSC with FeO clusters.
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