CN
Search Within
M7133
应用筛选条件
关键词:'M7133'
显示 1-30 共 34 条结果 关于 "M7133" 范围 论文
Paraskevi Tsoutsikos et al.
Biochemical pharmacology, 67(1), 191-199 (2003-12-12)
Renal ischaemia is associated with accumulation of fatty acids (FA) and mobilisation of arachidonic acid (AA). Given the capacity of UDP-glucuronosyltransferase (UGT) isoforms to metabolise both drugs and FA, we hypothesised that FA would inhibit renal drug glucuronidation. The effect
M Kleinig et al.
Analytical biochemistry, 260(2), 128-134 (1998-07-11)
An assay was developed, using two similar formats, to simultaneously measure both the lysosomal targeting receptor binding and enzyme activity of the recombinant human enzyme N-acetylgalactosamine-4-sulfatase. This assay also has potential application for all phosphorylated lysosomal enzymes that contain mannose-6-phosphate
J Kawano et al.
The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society, 35(5), 523-530 (1987-05-01)
Metal precipitation techniques for ultrastructural demonstration of arylsulfatase C activity were studied in rat kidney. Possible substrates for the techniques were biochemically tested with regard to their velocity of enzymatic hydrolysis and their specificity for arylsulfatase C. Effects of buffers
Veysel S Hançer et al.
Molecular syndromology, 10(5), 272-275 (2020-02-06)
Mucopolysaccharidosis (MPS) type VI, also known as Maroteaux-Lamy syndrome, is a lysosomal storage disorder, characterized by the deficiency of the arylsulfatase B enzyme. The clinical phenotype and severity of the illness varies according to the residual enzyme activity. Typical features
J Chen et al.
The Journal of pharmacology and experimental therapeutics, 280(1), 24-31 (1997-01-01)
The vascularly perfused rat intestine and liver preparations were used to examine the effect of flow (8 and 10 ml/min) on the sequential metabolism of 4-methylumbelliferone (4MU), which forms primarily the glucuronide conjugate (4MUG) in intestine and the sulfate conjugate
C L Zimmerman et al.
Journal of chromatography, 563(1), 83-94 (1991-01-18)
A direct high-performance liquid chromatographic (HPLC) assay was developed for the separation and determination of 4-methylumbelliferone (4MU) and its glucuronide (MUG) and sulfate (MUS) conjugates in the cell-free perfusate ("plasma") from in situ perfused rat intestine-liver preparation. In addition, a
L A Casciola-Rosen et al.
The Journal of biological chemistry, 266(7), 4341-4347 (1991-03-05)
We used perfused rat livers to investigate the role of endosomes versus lysosomes in the hydrolysis of endocytosed material. When perfusions were performed at 37 degrees C with 125I-asialoorosomucoid, 125I-galactosylated albumin, or 125I-mannosylated albumin, there was a 15-min lag before
Lin Yi et al.
Analytical and bioanalytical chemistry, 386(3), 666-674 (2006-05-26)
Characterizing the biological effects of metabolic transformations (or biotransformation) is one of the key steps in developing safe and effective pharmaceuticals. Sulfate conjugation, one of the major phase II biotransformations, is the focus of this study. While this biotransformation typically
A M Hassen et al.
Drug metabolism and disposition: the biological fate of chemicals, 24(7), 792-798 (1996-07-01)
The uptake of estrone sulfate (E1S; 1 to 400 microM), harmol sulfate (HS; 5 to 900 microM), and 4-methylumbelliferyl sulfate (4MUS; 5 to 1000 microM) was investigated in isolated rat hepatocytes in the presence or absence of inhibitors. Uptake of
M Chiba et al.
Hepatology (Baltimore, Md.), 27(1), 134-146 (1998-01-13)
The hepatocellular entry of 4-methylumbelliferyl sulfate (4MUS) a highly ionized and highly bound anion capable of futile cycling, was examined in the single-pass albumin-free perfused rat liver preparation. Desulfation of 4MUS to 4-methylumbelliferone (4MU) was verified in vitro to be
A specific fluorogenic assay for N-acetylgalactosamine-4-sulphatase activity using immunoadsorption.
D A Brooks et al.
Journal of inherited metabolic disease, 14(1), 5-12 (1991-01-01)
A method combining immune capture and enzyme detection by fluorochemistry has been developed for the diagnostic assay of N-acetylgalactosamine-4-sulphatase (4-sulphatase). The procedure uses a monoclonal antibody 4-S 4.1 to immunoadsorb 4-sulphatase specifically from complex protein samples containing other sulphatases, and
Lihua Wang-Eckhardt et al.
Cells, 10(12) (2021-12-25)
Sulfatide synthesis in the human renal cancer cell line SMKT-R3 was strongly inhibited in the presence of low µM concentrations of AG-205, a progesterone receptor membrane component 1 (PGRMC1) antagonist. This was also the case in Chinese hamster ovary (CHO)
R M Trüeb et al.
Dermatology (Basel, Switzerland), 200(3), 247-249 (2000-06-01)
X-linked recessive ichthyosis (XRI) is a genetic disorder of keratinization with extracutaneous manifestations due to deficiency of steroid sulfatase (STS). Because STS plays an important role in androgen metabolism, and elevated levels of dehydroepiandrosterone sulfate have been reported in young
O P van Diggelen et al.
Journal of inherited metabolic disease, 12(3), 273-280 (1989-01-01)
Arylsulphatase C (ASC) activity in leukocytes and fibroblasts measured with 4-methylumbelliferylsulphate, is caused by at least two genetically different sulphatases. One of these is steroid sulphatase (STS). Depending on the substrate concentration, about 10-50% of the ASC activity in leukocytes
Renhong Tang et al.
The Journal of biological chemistry, 284(32), 21505-21514 (2009-06-13)
Sulf-1 and Sulf-2 are novel extracellular sulfatases that act on internal glucosamine 6-O-sulfate modifications within heparan sulfate proteoglycans and regulate their interactions with various signaling molecules, including Wnt ligands. Although the Sulfs are multidomain proteins, there is limited information available
P Urbitsch et al.
DNA and cell biology, 19(12), 765-773 (2001-02-15)
The human genome contains six arylsulfatase genes (ARSA-ARSF), of which four are clustered in a distal region of the short arm of the X chromosome (Xp22.3). They were probably generated by a series of evolutionary duplication events; their exon-intron boundaries
M Chiba et al.
The Journal of pharmacology and experimental therapeutics, 266(2), 492-499 (1993-08-01)
4-Methylumbelliferyl sulfate (4MUS), a polar metabolite of 4-methylumbelliferone (4MU), is known to undergo desulfation and participate in futile cycling with 4MU. Unusual parabolic or increasing profiles of the steady-state extraction ratio (Ess) of 4MUS with respect to concentration in rat
Glucosamine-6-sulfamate analogues of heparan sulfate as inhibitors of endosulfatases.
Mathias Schelwies et al.
Chembiochem : a European journal of chemical biology, 11(17), 2393-2397 (2010-10-26)
Wei-Ti Chen et al.
Analytical biochemistry, 339(1), 54-60 (2005-03-16)
A sensitive fluorometric assay was developed for alcohol sulfotransferase (AST). This was the first continuous fluorometric assay reported for AST. It used 3'-phosphoadenosine 5'-phosphosulfate regenerated from 3-phosphoadenosine 5'-phosphate by a recombinant phenol sulfotransferase (PST) using 4-methylumbelliferyl sulfate as the sulfuryl
Comparisons of detections, stabilities, and kinetics of degradation of hymecromone and its glucuronide and sulfate metabolites.
E R Garrett et al.
Journal of pharmaceutical sciences, 83(1), 115-116 (1994-01-01)
Caroline J Dean et al.
Clinical chemistry, 52(4), 643-649 (2006-02-25)
Mucopolysaccharidosis type II (MPS II) is a lysosomal storage disorder related to a deficiency in the enzyme iduronate-2-sulfatase (IDS). Clinical trials of enzyme replacement therapy are in progress, but effective treatment will require screening assays to enable early detection and
Lauren J McAllister et al.
PloS one, 7(2), e32385-e32385 (2012-03-01)
Streptococcus pneumoniae (the pneumococcus) is a formidable human pathogen, responsible for massive global morbidity and mortality. The ability to utilize carbohydrates in a variety of host niches appears to be integral to pneumococcal pathogenesis. In this study we investigated a
C Nishida et al.
Xenobiotica; the fate of foreign compounds in biological systems, 34(5), 439-448 (2004-09-17)
1. To elucidate the mechanisms involved in the sinusoidal efflux of sulfate and glucuronide metabolites of 4-methylumbelliferone (4MU), isolated rat liver perfusion studies were performed under several conditions. 2. The effect of sodium azide on the hepatic handling of both
Andrew J Nok et al.
Journal of biochemical and molecular toxicology, 17(1), 59-66 (2003-03-05)
The venom of Naja nigricolis was found to contain a high level of the enzyme aryl sulfatase. The enzyme was isolated from the venom of N. nigriclois and purified to electrophoretic homogeneity by gel chromatography on Sephadex G-100, DEAE-cellulose, and
S Ratna et al.
Hepatology (Baltimore, Md.), 17(5), 838-853 (1993-05-01)
Futile cycling between 4-methylumbelliferone and its sulfate and glucuronide conjugates was examined in the single-pass perfused rat liver preparation. The steady-state hepatic extraction ratio of 4-methylumbelliferone was found to be high (0.97) at a low input concentration of 0.005 mumol/L
Renhong Tang et al.
The Journal of biological chemistry, 284(32), 21505-21514 (2009-06-13)
Sulf-1 and Sulf-2 are novel extracellular sulfatases that act on internal glucosamine 6-O-sulfate modifications within heparan sulfate proteoglycans and regulate their interactions with various signaling molecules, including Wnt ligands. Although the Sulfs are multidomain proteins, there is limited information available
Lihua Wang-Eckhardt et al.
Cells, 10(12) (2021-12-25)
Sulfatide synthesis in the human renal cancer cell line SMKT-R3 was strongly inhibited in the presence of low µM concentrations of AG-205, a progesterone receptor membrane component 1 (PGRMC1) antagonist. This was also the case in Chinese hamster ovary (CHO)
Maciej J Zamek-Gliszczynski et al.
The Journal of pharmacology and experimental therapeutics, 319(1), 459-467 (2006-07-22)
The hepatic excretion of hydrophilic conjugates, end products of phase II metabolism, is not completely understood. In the present studies, transport mechanism(s) responsible for the biliary excretion of 4-methylumbelliferyl glucuronide (4MUG) and 4-methylumbelliferyl sulfate (4MUS) were studied. Isolated perfused livers
Paula G Franco et al.
Clinica chimica acta; international journal of clinical chemistry, 446, 86-92 (2015-04-22)
Mucopolysaccharidosis type VI can be screened by measuring the lysosomal arylsulfatase B (ARSB) residual enzyme activity in dried blood spots (DBS) using synthetic substrates. However, we have found experimental obstacles when determining ARSB activity with the fluorescent method due to
Junichi Enokizono et al.
Drug metabolism and disposition: the biological fate of chemicals, 35(6), 922-928 (2007-03-14)
Breast cancer resistance protein (Bcrp/Abcg2) is a member of the ATP-binding cassette transporter family with the ability to transport a variety of sulfate conjugates. In the present study, the regional expression and activity of Bcrp and sulfotransferases (SULTs/Sults) were investigated
1/2