2016
DOI: 10.1016/j.abb.2015.10.014
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All- trans -retinoic acid and retinol binding to the FA1 site of human serum albumin competitively inhibits heme-Fe(III) association

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Cited by 14 publications
(29 citation statements)
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“…Heme‐Fe(III) binding to HSA, in the absence and presence of cantharidin, was followed spectrophotometrically between 350 and 450 nm, at pH 7.3 (2.0 × 10 −2 phosphate buffer) and between 10.0°C and 30.0°C . The heme‐Fe(III) concentration was 7.3 × 10 −7 M, the cantharidin concentration ranged between 2.0 × 10 −6 M and 2.0 × 10 −4 M, and the HSA concentration ranged between 1.3 × 10 −7 M and 2.0 × 10 −6 M. Heme‐Fe(III) binding to HSA, in the absence and presence of cantharidin, was investigated at a fixed low heme‐Fe(III) concentration by increasing the amount of HSA …”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…Heme‐Fe(III) binding to HSA, in the absence and presence of cantharidin, was followed spectrophotometrically between 350 and 450 nm, at pH 7.3 (2.0 × 10 −2 phosphate buffer) and between 10.0°C and 30.0°C . The heme‐Fe(III) concentration was 7.3 × 10 −7 M, the cantharidin concentration ranged between 2.0 × 10 −6 M and 2.0 × 10 −4 M, and the HSA concentration ranged between 1.3 × 10 −7 M and 2.0 × 10 −6 M. Heme‐Fe(III) binding to HSA, in the absence and presence of cantharidin, was investigated at a fixed low heme‐Fe(III) concentration by increasing the amount of HSA …”
Section: Methodsmentioning
confidence: 99%
“…Dansyl‐arginine and dansyl‐sarcosine binding to HSA, in the absence and presence of cantharidin, was followed spectrofluorimetrically at pH 7.3 (2.0 × 10 −2 M phosphate buffer) and 20.0°C. The fluorophore of dansyl‐arginine and dansyl‐sarcosine was excited at 370 nm; the fluorescence emission intensities were measured at the maximum wavelengths (ie, 460 nm for dansyl‐arginine and at 475 nm for dansyl‐sarcosine); the excitation and emission slits were 5 nm . The HSA concentration was 3.1 × 10 −6 M, the dansyl‐arginine and dansyl‐sarcosine concentration ranged between 1.0 × 10 −5 M and 2.0 × 10 −4 M, and the cantharidin concentration ranged between 2.0 × 10 −6 M and 2.0 × 10 −4 M.…”
Section: Methodsmentioning
confidence: 99%
“…Values of the dissociation equilibrium constants for HSA binding to heme‐Fe(III), in the absence and presence of neonicotinoids (i.e., K h 0 and K h app respectively; see Scheme 1), were obtained spectrophotometrically from the dependence of the relative absorbance intensity change (i.e., Δ A /Δ A max ) of the HSA:heme‐Fe(III) complex on the concentration of free HSA (i.e., [HSA]), according to Equation (1): normalΔA/normalΔAmax=HSAn/()Knormalhn+HSAn, where Δ A is the absorbance intensity change occurring at each concentration of HSA, Δ A max is the maximum absorbance intensity change occurring under saturating conditions, and n is the Hill coefficient. The concentration of free HSA was determined subtracting the HSA:heme‐Fe(III) concentration from that of total HSA.…”
Section: Methodsmentioning
confidence: 99%
“…Os retinoides favorecem o crescimento, diferenciação e morte celular e a desregulação das suas vias de sinalização está ligada a tumorigênese. Por esta razão, eles têm sido cada vez mais apontados como potenciais agentes terapêuticos para várias doenças, incluindo o câncer (MUZIO et al, 2016).…”
Section: Vitamina Aunclassified
“…Os retinoides favorecem o crescimento, diferenciação e morte celular e a desregulação das suas vias de sinalização está ligada a tumorigênese. Por esta razão, eles têm sido cada vez mais apontados como potenciais agentes terapêuticos para várias doenças, incluindo o câncer (MUZIO et al, 2016).A deficiência de vitamina A (VAD, em inglês) é um dos maiores problemas de desnutrição do mundo e no Brasil, a prevalência da ausência de micronutrientes é em sua maioria subclínica, assintomática (CHAVES et al, 2015). …”
unclassified