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e24859

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Marine Lambert et al.
Molecules (Basel, Switzerland), 20(5), 7890-7914 (2015-05-06)
A rapid, sensitive and selective analysis method using Ultra High Performance Liquid Chromatography coupled to triple-quadrupole Mass Spectrometry (UHPLC-QqQ-MS) has been developed for the quantification of polyphenols in rosé wines. The compound detection being based on specific MS transitions in
H Kasiganesan et al.
Acta physiologica (Oxford, England), 190(2), 163-169 (2007-03-31)
Recently a family of O(2)-dependent prolyl hydroxylase domain-containing enzymes (PHD) has been identified as a cellular oxygen-sensing mechanism. Reduced prolyl hydroxylase activity initiates a signalling cascade that includes the accumulation, as well as the activation, of hypoxia-inducible factor (HIF-1alpha). In
Regina G Daré et al.
International journal of pharmaceutics, 582, 119336-119336 (2020-04-19)
Excessive exposure to solar radiation induces injurious effects on human skin. Our previous study evidenced that protocatechuic acid (P0) and ethyl protocatechuate (P2) act against photodamage and photoaging. The present study aimed to develop solid lipid nanoparticles (SLNs) and nanostructured
Maria Luiza Zeraik et al.
PloS one, 9(10), e110277-e110277 (2014-10-24)
Pro-oxidant effects of phenolic compounds are usually correlated to the one-electron redox potential of the phenoxyl radicals. Here we demonstrated that, besides their oxidizability, hydrophobicity can also be a decisive factor. We found that esterification of protocatechuic acid (P0) provoked
Yanpeng Gao et al.
Water research, 176, 115745-115745 (2020-04-03)
Widespread occurrence of emerging organic contaminants (EOCs) in water have been explicitly associated with adverse effects on human health, therefore representing a major risk to public health. Especially the increased toxicity is frequently observed during the photodegradation of EOCs in
James M May et al.
Archives of biochemistry and biophysics, 500(2), 162-168 (2010-06-01)
Ascorbic acid improves endothelial barrier function by decreasing the permeability of endothelial cells cultured on semi-porous membrane filters. This decrease was not due to enhanced collagen synthesis and was mimicked by the collagen synthesis inhibitor ethyl-3,4-dihydroxybenzoic acid (EDHB). Since EDHB
Jian Wang et al.
FEBS letters, 529(2-3), 309-312 (2002-10-10)
Ethyl-3,4-dihydroxybenzoate (EDHB) is commonly utilized as a substrate analog and competitive inhibitor of prolyl 4-hydroxylases. These iron-dependent enzymes have received a lot of attention for their involvement in crucial biochemical pathways such as collagen maturation and oxygen sensing. Since EDHB
Su Jin Kang et al.
International journal of molecular sciences, 16(10), 24219-24242 (2015-10-17)
Plants rich in antioxidant substances may be useful for preventing skin aging. Pomegranates, containing flavonoids and other polyphenolic compounds, are widely consumed due to their beneficial properties. We examined the underlying mechanisms of dried pomegranate concentrate powder (PCP) on melanin
Ravi Kant et al.
Molecular and cellular biochemistry, 312(1-2), 25-31 (2008-02-15)
Remote preconditioning is a unique phenomenon in which brief episodes of ischemia and reperfusion to remote organ protect the target organ against sustained ischemia-reperfusion (I/R)-induced injury. Protective effects of remote renal preconditioning (RRPC) are well established in heart, but their
L M Andersson et al.
Biochimica et biophysica acta, 1268(1), 27-34 (1995-07-20)
Fibroblasts degrade about 15% of newly synthesised collagen within the cell before it can be secreted. When the helical structure of collagen is disrupted, about 30% is degraded intracellularly. To determine if collagen degradation occurs in a pre-lysosomal compartment, the
Christina Warnecke et al.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 17(9), 1186-1188 (2003-04-24)
Hypoxia-inducible transcription factors (HIF) mediate complex adaptations to reduced oxygen supply, including neoangiogenesis. Regulation of HIF occurs mainly through oxygen-dependent destruction of its alpha subunit. In the presence of oxygen, two HIFalpha prolyl residues undergo enzymatic hydroxylation, which is required
Yuting Li et al.
Food chemistry, 317, 126454-126454 (2020-03-01)
The reaction efficiency of o-benzoquinones with amines (L-lysine, Nα-acetyl-L-lysine, glycine, L-methionine and L-arginine), thiols (L-cysteine and Nα-acetyl-L-cysteine) and protein (bovine serum albumin) were determined at pH 5.0, 7.0 and 8.0 and scan rate of 10, 50 and 100 mV/s by cyclic
Tanveer Ahmad et al.
American journal of respiratory cell and molecular biology, 47(1), 1-10 (2012-02-09)
Oxygen-sensing prolyl-hydroxylase (PHD)-2 negatively regulates hypoxia-inducible factor (HIF)1-α and suppresses the hypoxic response. Hypoxia signaling is thought to be proinflammatory but also attenuates cellular injury and apoptosis. Although increased hypoxic response has been noted in asthma, its functional relevance is
Claudia Grajeda-Iglesias et al.
Food chemistry, 194, 749-757 (2015-10-17)
Hibiscus sabdariffa L. is a worldwide consumed plant, principally after infusion of its dried sepals and calyces, which are usually discarded. Nevertheless, they represent a potential source of natural bioactive compounds, e.g. polyphenols, which could add value to this under-exploited
Maria-Ioanna Stavropoulou et al.
Molecules (Basel, Switzerland), 26(2) (2021-01-21)
Chemical composition of propolis depends on the plant source and thus on the geographic and climatic characteristics of the site of collection. The aim of this study was to investigate the chemical profile of Greek and Chinese propolis extracts from
Milind M Muley et al.
Life sciences, 93(1), 51-57 (2013-06-08)
The neuroprotective activities of silymarin, piracetam and protocatechuic acid ethyl ester (PCA) on cerebral global ischemic/reperfusion were evaluated in a rat model. A midline ventral incision was made in the throat region. The right and left common carotid arteries were
H Kondo et al.
In vitro cellular & developmental biology. Animal, 29A(12), 929-935 (1993-12-01)
Human fetal skin fibroblasts (TIG-3S) were found to migrate into a denuded area in a cell monolayer when cultured in both serum-depleted and serum-supplemented media, unlike adult-donor skin fibroblasts which migrated well only when cultured in serum-supplemented medium. Therefore, a
Lutz Kiep
ALTEX, 22(3), 135-141 (2005-09-28)
It is well known that in vitro preparations of the chick embryo can functionalise and conjugate selected model substances. Based on this biochemical knowledge an ex vivo model was developed to study xenobiotic metabolism in the incubated hen's egg. The
Michael J Fallon et al.
Metabolism: clinical and experimental, 57(8), 1148-1154 (2008-07-22)
The presence of Fe(II) alpha-ketoglutarate hydroxylases in rat and human pancreatic islets and INS-1 832/13 cells was demonstrated with the reverse transcriptase polymerase chain reaction (PHD1, 2, and 3; lysyl hydroxylases 1, 2, and 3; and phytanoyl-coenzyme A hydroxylase were
Zhi Zhong et al.
American journal of physiology. Gastrointestinal and liver physiology, 295(4), G823-G832 (2008-09-06)
The mitochondrial permeability transition (MPT) plays an important role in hepatocyte death caused by ischemia-reperfusion (IR). This study investigated whether activation of the cellular oxygen-sensing signal cascade by prolyl hydroxylase inhibitors (PHI) protects against the MPT after hepatic IR. Ethyl
E F Rocnik et al.
The Journal of clinical investigation, 101(9), 1889-1898 (1998-06-13)
Migration of smooth muscle cells (SMCs) and collagen synthesis by SMCs are central to the pathophysiology of vascular disease. Both processes can be induced shortly after vascular injury; however, a functional relationship between them has not been established. In this
O Saitoh et al.
Experimental cell research, 200(1), 70-76 (1992-05-01)
cis-4-Hydroxy-L-proline (cis-OH-Pro) and ethyl-3,4-dihydroxybenzoate (EDHB), two distinct inhibitors of collagen synthesis, prevented myogenesis in C2C12 mouse skeletal muscle cells. Both inhibitors blocked myotube formation and the expression of sarcomeric myosin heavy chain. Northern blot analysis showed that cis-OH-Pro- and EDHB-treated
E A Chernoff et al.
Tissue & cell, 33(1), 97-110 (2001-04-09)
The role of fibrillar collagen on myogenic differentiation has previously been studied in tissue culture cell lines but has not been studied in situ. We treated cultured chick and mouse embryos with collagen synthesis inhibitors to determine the role of
Ming-Xiu Hao et al.
Experimental and therapeutic medicine, 13(3), 935-941 (2017-04-30)
The aim of the present study was to investigate hypoxia-induced apoptosis and autophagy in vascular smooth muscle cells (VSMCs) and the underlying molecular mechanisms of microRNA (miR)-17-5p responses in an anaerobic environment. The results revealed that miR-17-5p expression was significantly
Bianca Crifo et al.
Journal of immunology (Baltimore, Md. : 1950), 202(5), 1521-1530 (2019-02-01)
Hypoxia is a common and prominent feature of the microenvironment at sites of bacteria-associated inflammation in inflammatory bowel disease. The prolyl-hydroxylases (PHD1/2/3) and the asparaginyl-hydroxylase factor-inhibiting HIF are oxygen-sensing enzymes that regulate adaptive responses to hypoxia through controlling the activity
Cristina Moreta et al.
Environmental research, 142, 452-460 (2015-08-09)
Exposure of humans to parabens is a concern due to the estrogenic activity of these compounds. Parabens are widely used as preservatives in some personal care products, foodstuffs and pharmaceuticals owing to their low cost, high water solubility and broad
S Saika et al.
Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 232(8), 499-502 (1994-08-01)
The spreading of epithelium is critical in the healing of corneal wounds. Such epithelial spreading requires the continuous production of protein and glycoprotein. To determine whether collagen production is required for the spreading of corneal epithelium, we studied the effects
S Saika et al.
Ophthalmic research, 27(6), 335-346 (1995-01-01)
We examined the effect of a prolyl hydroxylase inhibitor, ethyl-3,4-dihydroxybenzoate (E-DHB), on collagen production, proliferation, and spreading by cultured rabbit keratocytes and subconjunctival fibroblasts. Proliferating cells were incubated with or without E-DHB, and were examined by phase-contrast microscopy and proliferation
Susana Soares et al.
Journal of agricultural and food chemistry, 66(33), 8814-8823 (2018-07-31)
Polyphenols may contribute directly to plant-based foodstuffs flavor, in particular to astringency and bitterness. In this work, the bitterness of a small library of polyphenols from different classes [procyanidin dimers type B, ellagitannins (punicalagin, castalagin, and vescalagin) and phenolic acid
David J Lomb et al.
Journal of neurochemistry, 103(5), 1897-1906 (2007-09-01)
Nerve growth factor (NGF) serves a critical survival-promoting function for developing sympathetic neurons. Following removal of NGF, sympathetic neurons undergo apoptosis characterized by the activation of c-Jun N-terminal kinases (JNKs), up-regulation of BH3-only proteins including BcL-2-interacting mediator of cell death
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