Results 21 to 30 of about 15,699 (195)
A multicompartmental model of vitamin A kinetics in rats with marginal liver vitamin A stores.
A linear, first-order, constant-coefficient multicompartmental model is presented which describes the dynamics of [3H]retinol turnover in adult rats with normal plasma retinol concentrations but low liver stores (less than 100 micrograms of retinol ...
M H Green, L Uhl, J B Green
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This paper expands the current state of knowledge on impact of retinoids on redox status of cytochrome c in cancers. Little is known how the expression of cytochromes may influence the development of cancers.
Jakub Maciej Surmacki, Halina Abramczyk
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Dietary vitamin A/all-trans retinol/ROL plays a critical role in human vision. ROL circulates bound to the plasma retinol-binding protein (RBP4) as RBP4-ROL. In the eye, the STRA6 membrane receptor binds to circulatory RBP4 and internalizes ROL. STRA6 is,
Ashish K. Solanki +8 more
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Evidence for an Essential Role of Megalin in Transepithelial Transport of Retinol [PDF]
Abstract. Transepithelial transport of retinol is linked to retinol-binding protein (RBP), which is taken up and also synthesized in a number of epithelia. By immunocytochemistry of human, rat, and mouse renal proximal tubules, a strong staining in apical endocytic vacuoles, lysosomes, endoplasmic reticulum, Golgi, and basal ...
Christensen, Erik Ilsø +8 more
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Retinol Esterification Activity Contributes to Retinol Transport in Stellate Cells.
The mechanisms of retinol transport and accumulation in hepatic stellate cells (HSC) remain to be elucidated. Our previous studies suggested that retinol esterification activity, particularly lecithin:retinol acyltransferase (LRAT) activity, in liver retinoid metabolism is important to elucidate the relationship between retinol uptake by HSC and the ...
T, Matsuura +3 more
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Retinoid-binding proteins: similar protein architectures bind similar ligands via completely different ways. [PDF]
BACKGROUND: Retinoids are a class of compounds that are chemically related to vitamin A, which is an essential nutrient that plays a key role in vision, cell growth and differentiation. In vivo, retinoids must bind with specific proteins to perform their
Yu-Ru Zhang, Yu-Qi Zhao, Jing-Fei Huang
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Impact of vitamin A transport and storage on intestinal retinoid homeostasis and functions
: Lecithin:retinol acyltransferase and retinol-binding protein enable vitamin A (VA) storage and transport, respectively, maintaining tissue homeostasis of retinoids (VA derivatives).
Maryam Honarbakhsh +15 more
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During inflammation, serum amyloid A proteins transport retinol to infected tissues.
Stephanie C Ganal, Andrew J MacPherson
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Production of functional human vitamin A transporter/RBP receptor (STRA6) for structure determination. [PDF]
STRA6 is a plasma membrane protein that mediates the transport of vitamin A, or retinol, from plasma retinol binding protein (RBP) into the cell. Mutations in human STRA6 are associated with Matthew-Wood syndrome, which is characterized by severe ...
Conor J Breen +5 more
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Transthyretin (TTR) is a plasma hormone carrier protein associated with hereditary and senile forms of systemic amyloid disease, wherein slow tetramer disassembly is thought to be an obligatory step. Plasma transport of retinol is carried out exclusively by the retinol-binding protein (RBP), through complexation with transthyretin.
Hyung, Suk-Joon +2 more
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