نتایج جستجو برای: methyl catechol
تعداد نتایج: 115362 فیلتر نتایج به سال:
T he influence of estrogen on blood pressure is complicated and sometimes contradictory. Premenopausal women have a lower incidence of hypertension, but recent clinical trials suggest that postmenopausal hormone replacement therapy does not necessarily decrease the risk of cardiovascular disease. Sexually dimorphic hypertension is evident in multiple animal models, yet only some indicate a crit...
Co-metabolism of 3-methylcatechol, 4-chlorocatechol and 3,5-dichlorocatechol by an Achromobacter sp. was shown to result in the accumulation of 2-hydroxy-3-methylmuconic semialdehyde, 4-chloro-2-hydroxymuconic semialdehyde and 3,5-dichloro-2-hydroxymuconic semialdehyde respectively. Formation of these products indicated that cleavage of the aromatic nucleus of the substituted catechols was acco...
The naturally occurring neurotoxin, 1-methyl-6,7-dihydroxy-1,2,3,4-tetrahydroisoquinoline (salsolinol; SAL), has been speculated to contribute to Parkinson's disease and neuropathology of chronic alcoholism. In the present study, we found the capability of SAL to cause DNA cleavage in the presence of Cu(ll). Incubation of SAL and CuCl2 with calf thymus DNA caused strand breaks. Likewise, SAL in...
Background and Objective: The activities of various industries produce a wide range of pollutants and toxic compounds. One of these compounds is the catechol, a cyclic organic compound with high toxicity and resistant to degradation. Therefore, the purpose of this study was to investigate efficiency of powder activated carbon magnetized with Fe3O4 nanoparticles in the removal of catechol from a...
To refine further the structure-activity relationships of D(1) dopamine receptor agonists, we investigated the roles of three conserved serine residues [Ser198(5.42), Ser199(5.43), and Ser202(5.46)] in agonist binding and receptor activation. These transmembrane domain 5 (TM5) residues are believed to engage catechol ligands through polar interactions. We stably expressed wild-type or mutant (S...
Research works proposed that radical scavenging activity of flavonoids is due to ring B, andthe remaining part of the molecule can be disregarded. Thus the objective of this work is toobserve whether hydroxytoluenes account the radical scavenging activity of flavonoid and toestablish structural requirements for their activity (as they showed appreciable activity) andelucidate a comprehensive me...
Background & Aims: Catechol, a phenolic compound, is carcinogenic and toxic and enters the environment through industrial waste. The main objective of this paper was to evaluate the performance of the ozone in the removal of catechol from water. Materials & Methods: Catechol concentration was determined using a high-pressure gas chromatography (HPLC). Concentration of ozone and chemical oxyg...
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