METHYL ORANGE & ITS METAB, N,N-DIMETHYL-P-PHENYLENEDIAMINE WERE MUTAGENIC TO SALMONELLA TYPHIMURIUM WHEN TESTED IN PRESENCE OF LIVER HOMOGENATE. SULFANILIC ACID ANOTHER METABOLITE WAS NOT MUTAGENIC.
When various dyes and indicators were fed to partially hepatectomized male rats as supplements in basal diet for 10 days after surgery, liver regeneration was stimulated by 1-phenylazo-2-naphthol and by 1-(p-phenylazophenylazo)-2-naphthol, as such or with methyl substituents on the phenyl rings, and also by methyl orange. The efficacy of the azonaphthiols stemmed from the activity of the metabolic intermediate, 1-amino-2-naphthol, which was tested in rats at a level of 0.20% (as the hydrochloride). The presence of a nitro group pr two methoxy groups of the phenyl ring of 1-phenylazo-2-naphthol or of sulfonic acid groups on either of the azonaphthol series led to cmpd that were ineffective. The stimulants generally elicited liver enlargement when fed to intact rats for the same interval. In contrast to p-dimethylaminoazobenzenesulfonate (methyl orange) ... was stimulatory. Sulfanilic acid, a prominent metabolite of several azo dyes, proved inactive in partially hepatectomized males at a level of 0.20%.
Clastogenic activity was evaluated in 3 cultures of RL1 rat liver cells per dose, exposed for 22 hours to 4-dimethylaminoazobenzene-4-sulphonic acid, sodium salt at concentrations of 0, 12.5, 25.0, or 50.0 ug/ml of culture medium. Concentrations were chosen to be approximately 1/4, 1/2, and 1x the GI50 (concentration at which 50% growth inhibition is achieved). Both positive (methyl-methanesulfonate) and solvent (dimethylsulfoxide) controls were used. No metabolic activation system was used. Cell division was arrested, and at least 380 metaphases from each test concentration were examined. The test substance did not induce a significant frequency of chromatid or chromosome aberrations. The proportions of cells showing chromatid aberrations were 0.7% for the negative control, 0% at both 12.5 and 25.0 ug/ml, and 0.3% at 50.0 ug/ml. The proportions showing chromosomal aberrations were 0.1% for the negative control, 0.3% at 25.0 ug/ml, and 0% at the other concentrations. Although the positive control showed 3.3% of cells with chromatid aberrations, no chromosome aberrations were induced.
KINETIC ANALYSIS OF BILIARY EXCRETION OF IV DOSE OF [(3)H]METHYL ORANGE & PRODUCTS OF DEMETHYLATION (MONO- & DI-) SHOWED THAT SUCCESSIVE REMOVAL OF METHYL GROUP RESULTED IN MUCH FASTER BILIARY EXCRETION OF CMPD.
BILIARY EXCRETION OF IV ADMIN METHYL ORANGE & METABOLITES, 4'-SULFO-4-METHYLAMINOAZOBENZENE & 4'-SULFO-4-AMINOAZOBENZENE, BY RATS WAS USED TO ILLUSTRATE A ONE-COMPARTMENT PHARMACOKINETIC MODEL IN WHICH A DRUG UNDERWENT 2 SUCCESSIVE METABOLIC REACTIONS.
[EN] METHODS OF TREATMENT OF AMYLOIDOSIS USING ASPARTYL-PROTEASE INIHIBITORS<br/>[FR] PROCEDES DE TRAITEMENT D'AMYLOIDOSE UTILISANT DES INHIBITEURS DE PROTEASE ASPARTYLE
申请人:ELAN PHARM INC
公开号:WO2005070407A1
公开(公告)日:2005-08-04
The invention relates to acetyl 2-hydroxy-1,3-diaminospirocyclohexanes and derivatives thereof that are useful in treating diseases, disorders, and conditions associated with amyloidosis. Amyloidosis refers to a collection of diseases, disorders, and conditions associated with abnormal deposition of A-beta protein.
A new fabrication of AgX (X = Br, I)–TiO<sub>2</sub> nanoparticles immobilized on polyacrylonitrile (PAN) nanofibers with high photocatalytic activity and renewable property
作者:Dandan Yu、Jie Bai、Haiou Liang、Junzhong Wang、Chunping Li
DOI:10.1039/c5ra19235h
日期:——
AgX–TiO2/PAN (X = Br, I) photocatalyst was synthesized by the electrospinning technique, solvothermal synthesis, physical adsorption and gas/solid reaction.
[EN] PEPTIDE DEFORMYLASE INHIBITORS<br/>[FR] INHIBITEURS DE PEPTIDE DEFORMYLASE
申请人:SMITHKLINE BEECHAM CORP
公开号:WO2003101442A1
公开(公告)日:2003-12-11
Novel PDF inhibitors and novel methods for their use are provided.
提供了新型PDF抑制剂和其使用的新方法。
[EN] 1 -HYDROXY-BENZOOXABOROLES AS ANTIPARASITIC AGENTS<br/>[FR] 1-HYDROXY-BENZOOXABOROLES COMME AGENTS ANTIPARASITAIRES
申请人:LILLY CO ELI
公开号:WO2014149793A1
公开(公告)日:2014-09-25
Provided are compounds useful for controlling endoparasites both in animals and agriculture. Further provided are methods for controlling endoparasite infestations of an animal by administering an effective amount of a compound as described above, or a pharmaceutically acceptable salt thereof, to an animal, as well as formulations for controlling endoparasite infestations using the compounds described above or an acceptable salt thereof, and an acceptable carrier. The claimed compounds are described by the following Markush formula:A typical example for a compound according to above formula is: A typical example for a compound according to above formula is:
A novel approach using plant embryos for green synthesis of silver nanoparticles as antibacterial and catalytic agent
作者:Minh-Trong Tran、Linh-Phuong Nguyen、Dinh-Truong Nguyen、T. Le Cam-Huong、Chi-Hien Dang、Tran Thi Kim Chi、Thanh-Danh Nguyen
DOI:10.1007/s11164-021-04548-x
日期:2021.11
The plant extract has been used extensively for biosynthesis of noble metallic nanoparticles due to cost efficiency and simple technology. However, influence of plant growth condition can induce changes in composition and content of bioactive compounds, leading to difficulty in reproducing the metallic nanoparticles. In this work, we first utilized the plant embryos (Panax vietnamensis embryos—PVE)