Results 21 to 30 of about 2,109,023 (306)

Flow Injection Amperometric Evaluation of Trolox Equivalent Antioxidant Capacity of Chocolates with Different Cocoa Content at a Boron-Doped Diamond Electrode

open access: yesFood Technology and Biotechnology, 2021
Research background. The objective of this paper is to introduce an instrumentally simple analytical tool for determination of cocoa solid content in chocolates. This electroanalytical method is based on amperometric oxidation of all present antioxidants
Tahir Arbneshi   +6 more
doaj  

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

FLOW INJECTION POTENTIOMETRIC ANALYSIS OF ASPARTIC ACID, GLUTAMIC ACID AND ASCORBIC ACID USING PLATINUM ELECTRODES

open access: yesJurnal Ilmu Dasar, 2012
The presence of  weak acids in solution can be detected using a potentiometric detector. Platinum was used as a working electrode and Ag/AgCl as a reference electrode.
Yeni Maulidah Muflihah   +3 more
doaj   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

open access: yesFEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Optimization of Flow Injection (FI) – Spectrophotometry for Hydroquinone Analysis [PDF]

open access: yesJournal of Pure and Applied Chemistry Research, 2019
Hydroquinone is one of the phenolic compounds used in various cosmetic products for skin lightening as it can inhibit tyrosinase enzyme in producing melanin.
Muhammad Iqbal Fahmi   +3 more
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

Analytical methods for the determination of some selected 4-quinolone antibacterials

open access: yesReviews in Analytical Chemistry, 2017
A comprehensive review with 337 references for the analysis of some selected 4-quinolone drugs belonging to the first and second generations since 2006 up till now is presented. This group includes nalidixic acid, oxolinic acid, piromidic acid, pipemidic
Belal Fathallah   +2 more
doaj   +1 more source

Flow Injection Analysis of Ellagic Acid in Cosmetic Skin-Whitening Creams Using a Dendritic Nanostructured Copper-Gold Alloy Plated Screen-Printed Carbon Electrode

open access: yesInternational Journal of Electrochemical Science, 2011
A copper-gold co-deposited alloy modified screen-printed electrode (SPE/{Cu-Au}nano) coupled flow injection analysis (FIA) was developed for sensitive and selective detection of ellagic acid (EA) in cosmetic products.
Annamalai Senthil Kumar   +4 more
doaj   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

Recent Electrochemical and Optical Sensors in Flow-Based Analysis

open access: yesSensors, 2006
Some recent analytical sensors based on electrochemical and optical detectioncoupled with different flow techniques have been chosen in this overview.
Nattakarn Wangfuengkanagul   +4 more
doaj   +1 more source

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