Diallyl sulfide (DAS) and diallyl disulfide (DADS) at 25 ug/mL decreased the benzo[a]pyrene (B[a]P)-induced colony growth inhibition of human epidermal keratinocytes. DAS and DADS decreased B[a]P-DNA and B[a]P-protein adducts by 65% and 49-55%, respectively. The B[a]P-induced ethoxyresorufin O-deethylase activity, a marker enzyme for cytochrome P450 1, was decreased from 3 to 1.7-1.9 nmol/min/mg microsomal protein by DAS and DADS treatments. The activity of glutathione S-transferase, a detoxifying enzyme for B[a]P, ... was decreased by DADS, but was unaffected by DAS
... /The authors/ investigated the mutation preventive properties of ellagic acid, green tea, and diallyl sulfide (DAS) against the mutagenicity of the nitrosamine N-nitrosomethylbenzylamine (NMBA) in the esophagus of the rat. ... The type of mutations induced by two 2-mg/kg sc injections of NMBA in the lacI gene of "Big Blue" rats is consistent with that found previously for nitrosamines in other systems and consists of G:C-->A:T transitions. .... the addition of ellagic acid to the feed, replacing drinking water with green tea, and gavage with DAS significantly reduced the mutagenicity of NMBA. ...
Diallyl sulphide (DAS) is a sulphur-containing volatile compound present in garlic (Allium sativum). It has been shown to inhibit a number of chemically induced forms of cancer in experimental animals. The present study demonstrates the inhibitory effect of DAS on the development of diethylnitrosamine (DEN) initiated and 2-acetyl-aminofluorene (2-AAF) promoted preneoplastic altered hepatic foci (AHF) in Wistar rats. AHF were scored and analysed by quantitative stereology using the Image Analysis system from frozen liver sections stained for biological markers, namely glutathione S-transferase, placental form (GST-P), gamma-glutamyl transpeptidase (GGT), adenosine triphosphatase (ATPase), glucose-6-phosphatase (G6 Pase) and alkaline phosphatase (AlkPase). DAS-supplemented rats were found to restore the near-normal levels of enzymes GST-P and GGT when exposed to DEN and 2-AAF. DAS administration following DEN and 2-AAF exposure led to the restoration of enzymic activity of ATPase, G6 Pase and AlkPase, as evident by number and area of the foci. These findings suggest the protective role of DAS in rat hepatocarcinogenesis ...
Gentamicin (GM) is an antibiotic whose clinical use is limited by its nephrotoxicity. Experimental evidences suggest a role of reactive oxygen species in GM-induced nephrotoxicity. ...This work ... explored the effect of diallyl sulfide (DAS) ... on GM-induced nephrotoxicity. Four groups of rats were studied: (1) Control, treated intragastrically with olive oil as a vehicle, (2) GM, treated subcutaneously with GM (125 mg/kg/day for 4 days), (3) DAS, treated intragastrically with DAS (50 mg/kg/day for 4 days), and (4) GM + DAS. Nephrotoxicity was made evident by: (1) the increase in creatinine and blood urea nitrogen in serum, (2) the increase in urinary excretion of N-acetyl-beta-D-glucosaminidase and total protein, and (3) necrosis of proximal tubular cells. These functional and structural alterations were prevented or ameliorated by DAS treatment. In addition, GM increased levels of renal oxidative stress markers nitrotyrosine and protein carbonyl groups which were also ameliorated by DAS in GM + DAS group. The mechanism by which DAS has a protective effect on GM-induced nephrotoxicity may be related, at least in part, to the decrease in oxidative stress in renal cortex.
1.周国泰,化学危险品安全技术全书,化学工业出版社,1997 2.国家环保局有毒化学品管理办公室、北京化工研究院合编,化学品毒性法规环境数据手册,中国环境科学出版社.1992 3.Canadian Centre for Occupational Health and Safety,CHEMINFO Database.1998 4.Canadian Centre for Occupational Health and Safety, RTECS Database, 1989
Wertheim, Justus Liebigs Annalen der Chemie, 1845, vol. 55, p. 301
摘要:
DOI:
作为试剂:
描述:
对氨基苯甲酸 、 alkaline earth salt of/the/ methylsulfuric acid 在
二烯丙基硫醚 、 human colon adenocarcinoma cells 、 RPMI 1640 medium 作用下,
生成 对乙酰氨基苯甲酸
参考文献:
名称:
Effects of the Garlic Components Diallyl Sulfide and Diallyl Disulfide on Arylamine N-Acetyltransferase Activity in Human Colon Tumour Cells
摘要:
Diallyl sulfide (DAS) and diallyl disulfide (DADS). major components of garlic, were used to determine inhibition of arylamine N-acetyltransferase (NAT) activity in a human colon tumour (adenocarcinoma) cell line. Two assay Systems were performed, one with cellular cytosols (9000 g supernatant), the other with intact bacterial cell suspensions. The NAT activity in a human colon tumour cell line was inhibited by DAS and DADS in a dose-dependent manner in both system: that is, the greater the concentration of DAS and DADS in the reaction, the greater the inhibition of NAT activities in both systems. The data also indicated that DAS and DADS decrease the apparent values of K-m and V-max of NAT enzymes from human colon tumour cells in both systems examined. This is the first report to demonstrate that garlic components do affect human colon tumour cell NAT activity. (C) 1998 Elsevier Science Ltd. All rights reserved.
Chemoselective Rearrangement Reactions of Sulfur Ylide Derived from Diazoquinones and Allyl/Propargyl Sulfides
作者:Sijia Yan、Junxin Rao、Cong-Ying Zhou
DOI:10.1021/acs.orglett.0c03493
日期:2020.11.20
three types of rearrangement reactions of sulfur ylidederivedfrom diazoquinones and allyl/propargyl sulfides. With Rh2(esp)2 as the catalyst, diazoquinones react with allyl/propargyl sulfides to form a sulfur ylide, which undergoes a chemoselective tautomerization/[2,3]-sigmatropic rearrangement reaction, a Doyle–Kirmse rearrangement/Cope rearrangement cascade reaction, or a Doyle–Kirmse rearrangement/elimination
The present invention provides GA targeting compounds which comprise GA targeting agent-linker conjugates linked to a combining site of an antibody. Various uses of the compounds are provided, including methods to prevent or treat diabetes or diabetes-related conditions.
BRM TARGETING COMPOUNDS AND ASSOCIATED METHODS OF USE
申请人:Arvinas Operations, Inc.
公开号:US20190300521A1
公开(公告)日:2019-10-03
The present disclosure relates to bifunctional compounds, which find utility as modulators of SMARCA2 or BRM (target protein). In particular, the present disclosure is directed to bifunctional compounds, which contain on one end a ligand that binds to the Von Hippel-Lindau E3 ubiquitin ligase, and on the other end a moiety which binds the target protein, such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of target protein. The present disclosure exhibits a broad range of pharmacological activities associated with degradation/inhibition of target protein. Diseases or disorders that result from aggregation or accumulation of the target protein are treated or prevented with compounds and compositions of the present disclosure.
[EN] METHODS AND COMPOUNDS FOR THE TREATMENT OF GENETIC DISEASE<br/>[FR] PROCÉDÉS ET COMPOSÉS POUR LE TRAITEMENT D'UNE MALADIE GÉNÉTIQUE
申请人:DESIGN THERAPEUTICS INC
公开号:WO2021158707A1
公开(公告)日:2021-08-12
The present disclosure relates to compounds and methods for modulating the expression of dmpk, and treating diseases and conditions in which dmpk plays an active role. The compound can be a transcription modulator molecule having a first terminus, a second terminus, and oligomeric backbone, wherein: a) the first terminus comprises a DNA-binding moiety capable of noncovalently binding to a nucleotide repeat sequence CAG or CTG; b) the second terminus comprises a protein-binding moiety binding to a regulatory molecule that modulates an expression of a gene comprising the nucleotide repeat sequence CAG or CTG; and c) the oligomeric backbone comprising a linker between the first terminus and the second terminus.