Showing 1-25 of 25 results for "285943"
W J Malaisse et al.
The American journal of physiology, 275(6 Pt 1), E993-E1006 (1998-12-09)
The metabolism of beta-L-glucose pentaacetate and its interference with the catabolism of L-[U-14C]glutamine, [U-14C]palmitate, D-[U-14C]glucose, and D-[5-3H]glucose were examined in rat pancreatic islets. Likewise, attention was paid to the effects of this ester on the biosynthesis of islet peptides, the...
H Jijakli et al.
Endocrine, 10(3), 219-224 (1999-09-14)
The metabolism of alpha-D-glucose pentaacetate and its positive insulinotropic action in isolated rat pancreatic islets are both unexpectedly resistant to D-mannoheptulose, as judged from experiments conducted over 90-120 min incubation. In the present study, the possible effects of the heptose...
G Ayvaz et al.
Research communications in molecular pathology and pharmacology, 103(1), 83-90 (1999-08-10)
The pentaacetate ester of alpha-D-glucose was recently introduced as a new insulin secretagogue. Its insulinotropic action appears mainly attributable to the catabolism of its hexose moiety in islet cells, but a direct effect of the ester itself upon a receptor...
W J Malaisse et al.
Archives of biochemistry and biophysics, 381(1), 61-66 (2000-10-06)
Hepatocytes from fed rats were incubated for 120 min in the presence of alpha-D-[1,2-13C]glucose pentaacetate (1.7 mM), both D-[1,2-13C]glucose (1.7 mM) and acetate (8.5 mM), alpha-D-glucose penta[2-13C]acetate (1.7 mM), or D-[1,2-13C]glucose (8.3 mM). The amounts of 13C-enriched L-lactate and D-glucose...
Monosaccharide esters: new tools in biomedical research.
W J Malaisse
Molecular genetics and metabolism, 65(2), 129-142 (1998-10-27)
W J Malaisse et al.
International journal of molecular medicine, 2(1), 95-98 (1998-12-17)
The polyacetate esters of certain non-nutrient monosaccharides, such as L-glucose and 2-deoxy-D-glucose, were recently reported to display positive insulinotropic action and, hence, proposed as possible tools for stimulation of insulin release in non-insulin-dependent diabetes. In the present study, the secretory...
F Ponticelli et al.
Carbohydrate research, 330(4), 459-468 (2001-03-28)
We describe the synthesis of some 3-tert-butyl-4-hydroxyphenyl D-glycopyranosides by reaction of tert-butylhydroquinone with beta-D-pentaacetyl-glucose, beta-D-pentaacetyl-galactose, 2-acetamido- and 3,4,6-tri-O-acetyl-2-butanamido-2-deoxy-beta-D-glucopyranosyl chlorides as well as the formation of anomeric 3-tert-butyl-4-hydroxyphenyl 4,6-di-O-acetyl-2,3-dideoxy-D-erythro-hex-2-eno-pyranosides by reaction between tert-butylhydroquinone and 3,4,6-tri-O-acetyl-D-glucal. All compounds, except 3-tert-butyl-4-hydroxyphenyl alpha- and...
M M Kadiata et al.
Life sciences, 64(9), 751-754 (1999-03-13)
Both alpha- and beta-D-glucose pentaacetate (1.7 mM each) augmented, to almost the same extent, insulin release caused by succinic acid dimethyl ester (10.0 mM) in rat pancreatic islets. The secretory response to these hexose esters largely exceeded that evoked by...
W J Malaisse
Acta clinica Belgica, 57(2), 49-52 (2002-08-03)
The first report dealing with the use of monosaccharide esters as new tools in biomedicine was published in 1997 (1). This topic was first reviewed in 1998 (2). The major aim of the present report is to briefly evoke the...
A Bastida et al.
Bioorganic & medicinal chemistry letters, 9(4), 633-636 (1999-03-31)
Penta-O-acetyl-alpha-D-glucopyranose was selectively deacetylated in aqueous media by lipases from Candida cilindracea (CCL) adsorbed on octyl-agarose support. Enzymatic hydrolyses was regioselective at the 4-position under neutral pH and towards the 6 position under acidic conditions. This enzymatic approach allows the...
Shaji K Chacko et al.
Journal of applied physiology (Bethesda, Md. : 1985), 104(4), 944-951 (2008-01-12)
We report a new method to measure the fraction of glucose derived from gluconeogenesis using gas chromatography-mass spectrometry and positive chemical ionization. After ingestion of deuterium oxide by subjects, glucose derived from gluconeogenesis is labeled with deuterium. Our calculations of...
L Ladrière et al.
Biochemical and biophysical research communications, 264(3), 855-859 (1999-11-02)
The metabolism of d-glucose and its pentaacetate ester was investigated in GLUT4 null mice and control C57Bl6/CBA mice. The incorporation of d-[U-(14)C]glucose (1.7 mM) into glycogen of diaphragm, soleus, and extensor digitorium longus muscles averaged, in the GLUT4 null mice...
Tatiana Rodríguez-Pérez et al.
Nucleic acids symposium series (2004), (52)(52), 101-102 (2008-09-09)
An efficient synthesis protocol for the glucosyl-nucleoside phosphodiester derivatives has been developed. These mononucleotides were designed to act as pronucleotides with potential to deliver the parent compound as its monophosphate. Key step of the synthesis is the regioselective hydrolysis of...
D Mercan et al.
Biochemical and biophysical research communications, 262(2), 346-349 (1999-08-27)
The early (min </= 1) and late (min 45) changes in NAD(P)H fluorescence caused by alpha-D-glucose pentaacetate, beta-L-glucose pentaacetate, and beta-D-galactose pentaacetate (1.7 mM each), alone or together with either L-leucine (10.0 mM) or D-glucose (8.3 mM), were monitored in...
W J Malaisse
International journal of molecular medicine, 2(4), 383-388 (1998-12-19)
The two anomers of L-glucose pentaacetate were recently found to stimulate insulin release. The insulinotropic action of these esters cannot be attributed to the catabolism in islet cells of their glucidic or acetic moieties. The present review deals with an...
Directed assembly of sub-nanometer thin organic materials with programmed-size nanopores.
Delia C Danila et al.
Angewandte Chemie (International ed. in English), 47(37), 7036-7039 (2008-08-05)
K Louchami et al.
International journal of molecular medicine, 3(2), 181-184 (1999-01-26)
The anomers of both D-glucose pentaacetate and L-glucose pentaacetate were recently found to display insulinotropic potential. In order to progress in understanding the mode of action of these esters in islet cells, we have now investigated whether they mimic the...
E Olivares et al.
Cell biochemistry and function, 16(4), 233-237 (1998-12-19)
The esterification of several monosaccharides, such as D-glucose, D-mannoheptulose and 2-deoxy-D-glucose was recently reported to increase their biological efficiency as either nutrient or antimetabolic agent. In the present study, however, the tetraacetate ester of streptozotocin was unexpectedly found to be...
Insulinotropic action of monosaccharide esters: therapeutic perspectives.
W J Malaisse
Diabetologia, 42(3), 286-291 (1999-03-30)
M M Kadiata et al.
International journal of molecular medicine, 3(6), 573-575 (1999-05-26)
In the presence of 2.8 mM D-glucose, beta-D-glucose pentaacetate (1. 7 mM) augmented insulin release from isolated rat pancreatic islets more than alpha-D-glucose pentaacetate. Likewise, the further increment in insulin output evoked by nateglinide (0.01 mM) was higher in islets...
L Ladriere et al.
International journal of molecular medicine, 5(4), 331-333 (2000-03-17)
Tumoral pancreatic islet cells of the RINm5F line were incubated, in groups of 25x106 cells each, for 120 min at 37 degrees C in media (5. 0 ml) containing either alpha-D-[1,2-13C]glucose pentaacetate (1.7 mM) or both D-[1,2-13C]glucose (1.7 mM) and...
R Pomares et al.
International journal of molecular medicine, 3(1), 15-20 (1998-12-29)
Electrical activity of beta-cells and cytosolic Ca2+ concentration ([Ca2+]i) were monitored in mouse pancreatic islets exposed to the pentaacetate esters of alpha-D-glucose, beta-D-galactose and beta-L-glucose, all tested at 1.7 mM concentration. In the presence of 5 mM D-glucose, alpha-D-glucose pentaacetate...
J Cancelas et al.
International journal of molecular medicine, 6(2), 197-199 (2000-07-13)
The effects of alpha-D-glucose pentaacetate (1.7 mM) upon glycogen synthase a activity and lactate output were examined in rat hepatocytes incubated at increasing concentrations of D-glucose. The ester enhanced the activity of glycogen synthase a at all concentrations (2.8, 4.0...
Stimulation of insulin synthesis and release by alpha-D-glucose pentaacetate in pancreatic islets from human subjects.
E Usac et al.
Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme, 32(3), 118-120 (2000-04-29)
Monosaccharide esters: clinically relevant?
E O Balasse
Acta clinica Belgica, 57(2), 47-48 (2002-08-03)

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