Interaction of Sodium, Lithium, Caesium, and Potassium Ions with Ascorbyl Radicals

Wieczorek, Piotr Z.; Ogoński, T.; Machoy, Z

doi:10.1515/znc-1987-0307

Cited by 3 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, potassium ions can stabilize ascorbic acid free radicals [ 38 ]. Vitamin C may control the active transport of potassium ions in some tissues and allow a rapid diffusion of potassium into the cell [ 39 , 40 ].…”

Section: Discussionmentioning

confidence: 99%

Potassium affects the association between dietary intake of vitamin C and NAFLD among adults in the United States

Liu,

Chen,

Luo

et al. 2024

PLoS ONE

View full text Add to dashboard Cite

Introduction Although the association between nonalcoholic fatty liver disease (NAFLD) and vitamin C has been well studied, the effects of dietary potassium intake on this relationship are still unclear. Thus, this study aimed to determine the effects of dietary potassium intake on the association between vitamin C and NAFLD. Methods We performed a cross-sectional learn about with 9443 contributors the usage of 2007–2018 NHANES data. Multiple logistic regression evaluation has been utilized to check out the affiliation of dietary vitamin C intake with NAFLD and advanced hepatic fibrosis (AHF). Subsequently, we plotted a smoothed match curve to visualize the association. Especially, the analysis of AHF was conducted among the NAFLD population. In addition, stratified evaluation used to be developed primarily based on demographic variables to verify the steadiness of the results. Effect amendment by way of dietary potassium intake used to be assessed via interplay checks between vitamin C and NAFLD in the multivariable linear regression. Results In this cross-sectional study, we found that vitamin C was negatively related to NAFLD and AHF. The relationship between vitamin C and NAFLD was different in the low, middle and high potassium intake groups. Furthermore, potassium intake significantly modified the negative relationship between vitamin C and NAFLD in most of the models. Conclusion Our research showed that potassium and vitamin C have an interactive effect in reducing NAFLD, which may have great importance for clinical medication.

show abstract

Section: Discussionmentioning

confidence: 99%

Potassium affects the association between dietary intake of vitamin C and NAFLD among adults in the United States

Liu,

Chen,

Luo

et al. 2024

PLoS ONE

View full text Add to dashboard Cite

show abstract

“…Several investigations have demonstrated that the magnitude of alkali metal ion participation in catalysis of radical reactions varied with the identity of the ion (10)(11)(12).…”

Section: Evaluation Of the Relative Ability Of Alkali Metalmentioning

confidence: 99%

“…This was considered somewhat surprising because, while radical reactions can be sensitive to the polarity of the medium (8), hydrogen atom abstractions are insensitive (9) presumably due to a lack of charge buildup in the reactions' transition states. Recently, however, Clark (10) used gas-phase ab initio calculations to support the feasibility of a proposed mechanism in which complexation with alkali metal ions along the reaction coordinate catalyzed hydrogen atom abstractions by HOO*; some experimental support of these calculations has appeared (11,12). Ample justification thus existed to support the further exploration of possible catalytic effects of alkali metals on HOO*-dependent reactions in solution, especially since alkali metals (particularly Na+ and K+) are present ubiquitously in biological systems (13).…”

Section: Introductionmentioning

confidence: 99%

Effect of solution ionic strength on lipid peroxidation initiation by the perhydroxyl (xanthine oxidase-derived) and peroxyl radicals

Aikens¹,

Dix²

1992

Chem. Res. Toxicol.

View full text Add to dashboard Cite

The role of solution ionic strength in perhydroxyl (HOO.) and peroxyl (ROO.) radical initiated lipid peroxidation has been defined and investigated. Xanthine oxidase activity was used as the source of superoxide (O2-) and its conjugate acid (HOO.) in these experiments. While the enzyme's activity varied with changes in ionic strength, the effect could be factored out of the lipid peroxidation studies. Both HOO.- and ROO.-initiated peroxidations of linoleic acid were promoted by increases in solution ionic strength: the inclusion of 0.1 M of various alkali metal salts in the reaction resulted in up to a 4-fold increase in the overall peroxidation rate. Significant differences between alkali metal cations (Li+, Na+, K+, Cs+) and halogen anions (F-, Cl-, Br-) were not observed. Thus, the increased rates of lipid peroxidation were attributable to changes in solution ionic strength rather than specific ion-reaction interactions. Ionic stimulation of lipid peroxidation occurred only in the presence of preexisting fatty acid hydroperoxides (LOOHs), which provided additional support for the hydrogen atom transfer mechanism previously proposed [Aikens, J., and Dix, T. A. (1991) J. Biol. Chem. 266, 15091] for the HOO./LOOH initiation process. Physiologically appropriate salt concentrations were used in these studies, hence the results may have biological significance.

show abstract

Lanthanide Ions Coupled with Photoinduced Electron Transfer Generate Strong Reduction Potentials from Visible Light

Meyer

Slanina

Heckel

et al. 2017

Chemistry A European J

View full text Add to dashboard Cite

Metal ions can have beneficial effects on photoinduced electron transfer. Merging such metal-ion-coupled electron transfer (MCET) with consecutive photoinduced electron transfer (conPET) enables the one-electron reduction of chlorobenzene with blue light in the presence of diisopropylethylamine as an electron donor. The presence of the metal ions extends the substrate scope of the photoredox catalysis to extreme reduction potentials (beyond -3 V vs. SCE).

show abstract

Interaction of Sodium, Lithium, Caesium, and Potassium Ions with Ascorbyl Radicals

Cited by 3 publications

References 0 publications

Potassium affects the association between dietary intake of vitamin C and NAFLD among adults in the United States

Potassium affects the association between dietary intake of vitamin C and NAFLD among adults in the United States

Effect of solution ionic strength on lipid peroxidation initiation by the perhydroxyl (xanthine oxidase-derived) and peroxyl radicals

Lanthanide Ions Coupled with Photoinduced Electron Transfer Generate Strong Reduction Potentials from Visible Light

Contact Info

Product

Resources

About