Disease relevance of terephthalic acid

• PURPOSE: To evaluate polyethylene terephthalate and polyurethane as coatings of vascular endoprostheses in the treatment of experimental arteriovenous fistulas (AVFs) [1].
• Characterization of the terephthalate degradation genes of Comamonas sp. strain E6 [2].
• Thyrocytes from Graves' disease glands were plated onto the upper face of a 8-mum-pore polyethylene terephthalate culture insert filter placed in the inverted position and grown for 24 h before the insert was returned to the normal position for a week in the cell culture plate wells [3].
• Isophthalate and terephthalate (anions) are readily used as carbon sources by aerobic bacteria, and preliminary evidence is consistent with catabolic routes for these isomers converging at the ring-cleavage substrate protocatechuate [4].
• Delftia tsuruhatensis sp. nov., a terephthalate-assimilating bacterium isolated from activated sludge [5].

Psychiatry related information on terephthalic acid

• In analogy, in man-made fibres thermal shrinkage induces changes in mechanical properties attributable to the entropy-driven disorientation of 'unfrozen' molecular chains (as in polyethylene terephthalate) or the 'broken' intermolecular hydrogen bonds (as in nylons) [6].

High impact information on terephthalic acid

• Conversely, the proportion of adherent cells undergoing apoptosis was increased significantly on anionic and hydrophilic surfaces (46 +/- 3.7 and 57 +/- 5.0%, respectively) when compared with the polyethylene terephthalate base surface [7].
• Using i.p. and s. c. implantation of polyethylene terephthalate disks in mice we find: (i) Extensive degranulation of mast cells, accompanied by histamine release, occurs adjacent to short-term i.p. implants [8].
• Percutaneous polymeric stents in porcine coronary arteries. Initial experience with polyethylene terephthalate stents [9].
• The DNA damage is suppressed in the presence of a radical scavenger, namely t-BuOH, and hydroxyl radicals are shown to be the reactive intermediates by trapping experiments with terephthalic acid [10].
• Both structures, which have been determined by using X-ray powder diffraction data, are built up from chains of chromium(III) octahedra linked through terephthalate dianions [11].

Chemical compound and disease context of terephthalic acid

• We isolated Comamonas sp. strain E6, which utilizes terephthalate (TPA) as the sole carbon and energy source via the protocatechuate (PCA) 4,5-cleavage pathway [2].
• Molecular analysis of isophthalate and terephthalate degradation by Comamonas testosteroni YZW-D [12].
• This study sought to determine the minimum leak size for entry of Enterobacter aerogenes under laboratory conditions, and normal flora under commercial conditions, into tryptic soy broth with yeast extract (TSBYE), homestyle chicken, and beef enchilada packaged in 355-ml polyethylene terephthalate/ethylene vinyl alcohol/polypropylene trays [13].
• To investigate the prostaglandin E2 (PGE2) biosynthetic mechanism in bladder carcinogenesis, we established Wistar rat model of bladder papilloma and transitional cell carcinoma (TCC) induced by 5% terephthalic acid (TPA) treatment [14].
• Degradability of dimethyl terephthalate by Variovorax paradoxus T4 and Sphingomonas yanoikuyae DOS01 isolated from deep-ocean sediments [15].

Biological context of terephthalic acid

• Similarly the 1254-cm-1 feature is unaffected, while the 1266-cm-1 feature is shifted to approximately 1290 cm-1 when inhibitors such as phenolates or terephthalate bind to the active site [16].
• Analysis of the nucleotide sequence for the terephthalate degradation operon located genes for a regulatory protein, a transport protein, a dioxygenase large subunit, a dioxygenase small subunit, a cis-dihydrodiol dehydrogenase, and a reductase [12].
• The pad and pat genes are contained on a catabolic island that is duplicated on plasmids pRHL1 and pRHL2 and includes predicted terephthalate catabolic genes (tpa) [17].
• Metabolism of DEHT by the rat appears to occur via rapid hydrolysis of both ester linkages to give two moles of 2-ethylhexanol and one mole of terephthalic acid [18].
• In presence of methanogenic granular biomass, high terephthalate removal capacities were obtained in these reactors (15 g-COD/L . day) after approximately 125 days of operation [19].

Anatomical context of terephthalic acid

• Adhesion studies reveal a 100-fold increase in endothelial cell attachment for the UEA I/polyethylene terephthalate surface (99.7 +/- 29.6 cells/high-power field) when compared with untreated (0.7 +/- 0.5), crosslinking agent (0.4 +/- 0.3), and denatured UEA I (1.2 +/- 1.1) control groups [20].
• To support the bulbar urethra a gelatin coated polyethylene terephthalate trapezoid shaped sling or cadaveric fascia lata is tied to the pubic bone using the 4 pairs of sutures attached to the bone anchors [21].
• Five vascular endothelial cell lines adhered to the UEA I/polyethylene terephthalate surface, whereas monocytes, smooth muscle cells, and fibroblasts did not [20].
• Streaming potential variation with pressure measured through poly(ethylene terephthalate) track-etched membranes of different pore sizes led to the determination of an apparent interfacial potential zetaa in the presence of 10-2 M KCl [22].
• Biocompatibility of polyethylene terephthalate (Trevira hochfest) augmentation device in repair of the anterior cruciate ligament [23].

Associations of terephthalic acid with other chemical compounds

• The Eyring activation parameters of the E/Z and Z/E isomerization barriers in the presence of the stationary phase BP21 (poly(ethylene glycol) terephthalate terminated) were determined by temperature-dependent experiments between 80 and 90 degrees C for 1 and 70 and 130 degrees C for 2 [24].
• The pH dependence of terephthalate binding as well as the spectral similarities of the dicarboxylate complexes to the ESO2 intermediate provides further evidence for the suggestion that this intermediate is a tightly bound enzyme-product complex [25].
• Finally the spectra of the 4-hydroxybenzoate and terephthalate complexes demonstrate the presence of two tyrosines coordinated to the active-site iron as suggested by others; these tyrosines have different vCO's and excitation profiles [25].
• The genes encoding the putative TER operon and degradation of protocatechuate, with the meta cleavage pathway, were attributed a chromosomal location in strains T-2 and PSB-4 [26].
• In vitro genotoxicity of dimethyl terephthalate [27].

Gene context of terephthalic acid

• After contact with polyethylene terephthalate, a slight but significant decrease in the percentage of both CD29 and CD49e positive cells was observed, which suggests a lower number of cells expressing the fibronectin receptor alpha5beta1 [28].
• The reduction in the fibronectin receptor could account for the poor endothelialization observed in vivo on polyethylene terephthalate [28].
• Small disks of polyethylene terephthalate, a material used in vascular grafts, were surgically implanted into the peritoneum of wild-type and Plg(-/-) mice [29].
• Astrocyte growth and glial cell line-derived neurotrophic factor secretion in three-dimensional polyethylene terephthalate fibrous matrices [30].
• Other synthetic polyesters such as poly(trimethylene adipate) (SP3/6), poly(tetramethylene adipate) (SP4/6), and aliphatic-aromatic copolyesters from 1,4-butanediol, terephthalic acid, and adipic acid (BTA-copolymers) exhibit only very low anaerobic microbial susceptibility [31].

Analytical, diagnostic and therapeutic context of terephthalic acid

• Importance of solubility in the sample preparation of poly(ethylene terephthalate) for MALDI TOFMS [32].
• At room temperature, a suspension of these beads flows through a microfluidic channel constructed of poly(ethylene terephthalate) [33].
• Transjugular intrahepatic portosystemic shunts formed with polyethylene terephthalate-covered stents: experimental evaluation in pigs [34].
• A coculture of the strain with the hydrogenotrophic methanogen Methanospirillum hungatei converted terephthalate to acetate and methane within 3 months of incubation, whereas strain JT could not degrade terephthalate in pure culture [35].
• Characterisation of the surface Lewis acid-base properties of poly(butylene terephthalate) by inverse gas chromatography [36].

References