Effects of water chestnut (<i>Tarpa bispinosa</i> Roxb.) extract/lutein on fingertip-measured advanced glycation endproduct/carotenoid levels

Yamane, Yukari; Mochiji, Mihoko; Ichioka, Sho; Takayanagi, Yuji; Ishida, Akiko; Obana, Akira; Tanito, Masaki

doi:10.1080/10715762.2022.2085098

Free Radical Research

2022

DOI: 10.1080/10715762.2022.2085098

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Effects of water chestnut (Tarpa bispinosa Roxb.) extract/lutein on fingertip-measured advanced glycation endproduct/carotenoid levels

Yukari Yamane

Mihoko Mochiji

Sho Ichioka

et al.

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2023

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“…(8) Simultaneous modulation of advanced glycation end products and oxidative stress can be beneficial in preventing cataract genesis. (9) Cysteine thiols are key factors in the proper functioning of enzymes, receptors, ion channels, transporters, and transcription factors, (8) but are the targets of oxidation.…”

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Linear association between aging and decreased blood thiol antioxidant activity in patients with cataract

Tanito

Takayanagi

Ishida

et al. 2023

J. Clin. Biochem. Nutr.

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We comprehensively assessed the roles of systemic redox markers by including both prooxidant and antioxidant markers in 121 Japanese subjects (mean ± SD age, 70 ± 11 years; 38 men) with no ocular pathology except age-related cataract. Serum levels of lipid peroxides, ferric-reducing activity, and thiol antioxidant activity were measured using the diacron reactive oxygen metabolite (dROM), biologic antioxidant potential (BAP), and sulfhydryl (SH) tests, respectively, using a free-radical analyzer. Univariate analyses suggested that older age, higher pulse rate, worse bestcorrected visual acuity (BCVA), higher intraocular pressure, and higher cataract grade were associated with a lower SH level. Scatterplots revealed virtually linear associations between age and the SH level (estimate, −4.4 μM/year). Multivariate analyses suggested that older age, higher systolic blood pressure, and worse BCVA were associated with a lower SH level. Neither the univariate nor multivariate analyses, except between female sex and higher dROM level, were associated with the dROM or BAP level. A lower serum SH level was the driver of aging itself and age-related decline in VA due to cataract. The serum SH level may be an excellent predictor of aging status in each subject.

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confidence: 99%

Linear association between aging and decreased blood thiol antioxidant activity in patients with cataract

Tanito

Takayanagi

Ishida

et al. 2023

J. Clin. Biochem. Nutr.

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Effects of water chestnut (Tarpa bispinosa Roxb.) extract/lutein on fingertip-measured advanced glycation endproduct/carotenoid levels

Cited by 1 publication

References 24 publications

Linear association between aging and decreased blood thiol antioxidant activity in patients with cataract

Linear association between aging and decreased blood thiol antioxidant activity in patients with cataract

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