ADP-Glucose (ADPG) is an immediate precursor used in the biosynthesis, by glucose addition, of storage polysaccharides in plants, green algae, and cyanobacteria, as well as structural polysaccharides in certain bacteria.[1],[2] It is used by amylose synthases or starch synthases in plastids in the production of amylose, amylopectins, starch, and other polysaccharides. ADPG is normally generated within plastids, although it can be biosynthesized in the cytoplasm of certain grasses and imported into plastids by a membrane-bound transporter.[3]
2-deoxy-D-Glucose-13C6is intended for use as an internal standard for the quantification of 2-deoxy-D-glucose by GC- or LC-MS. 2-deoxy-D-Glucose is a glucose antimetabolite and an inhibitor of glycolysis.1,2It inhibits hexokinase, the enzyme that converts glucose to glucose-6-phosphate, as well as phosphoglucose isomerase, the enzyme that converts glucose-6-phosphate to fructose-6-phosphate.32-deoxy-D-Glucose (16 mM) induces apoptosis in SK-BR-3 cells, as well as inhibits the growth of 143B osteosarcoma cells cultured under hypoxic conditions when used at a concentration of 2 mg ml.4,5In vivo, 2-deoxy-D-glucose (500 mg kg) reduces tumor growth in 143B osteosarcoma and MV522 non-small cell lung cancer mouse xenograft models when used alone or in combination with doxorubicin or paclitaxel .6 1.Kang, H.T., and Hwang, E.S.2-Deoxyglucose: An anticancer and antiviral therapeutic, but not any more a low glucose mimeticLife Sci.78(12)1392-1399(2006) 2.Aft, R.L., Zhang, F.W., and Gius, D.Evaluation of 2-deoxy-D-glucose as a chemotherapeutic agent: Mechanism of cell deathBr. J. Cancer87(7)805-812(2002) 3.Ralser, M., Wamelink, M.M., Struys, E.A., et al.A catabolic block does not sufficiently explain how 2-deoxy-D-glucose inhibits cell growthProc. Natl. Acad. Sci. USA105(46)17807-17811(2008) 4.Liu, H., Savaraj, N., Priebe, W., et al.Hypoxia increases tumor cell sensitivity to glycolytic inhibitors: A strategy for solid tumor therapy (Model C)Biochem. Pharmacol.64(12)1745-1751(2002) 5.Zhang, X.D., Deslandes, E., Villedieu, M., et al.Effect of 2-deoxy-D-glucose on various malignant cell lines in vitroAnticancer Res.26(5A)3561-3566(2006) 6.Maschek, G., Savaraj, N., Priebe, W., et al.2-deoxy-D-glucose increases the efficacy of adriamycin and paclitaxel in human osteosarcoma and non-small cell lung cancers in vivoCancer Res.64(1)31-34(2004)
Paromomycin (Sulfate Salt) is an aminoglycoside that is active against Gram-negative and many Gram-positive bacteria as well as some protozoa and cestodes. Paromomycin in combination with sodium stibogluconate has proven to be effective in African and Indian VL (visceral leishmaniasis) and improves survival in African VL[3]. PS (Paromomycin Sulfate) is effective for elimination of B. coli without hematological side effects[4]. The activity of phosphoglucose isomerase was slightly inhibited by 10(-3) M paromomycin sulfate while those of hexokinase, phosphofructokinase and glucose-6-phosphate dehydrogenase were not inhibited[5]. In addition, with regard to correlation of endotoxemia with renal impairment, endogenous creatinine clearance and p-aminohippurate clearance were significantly improved (P less than 0.02) in those patients whose endotoxemia disappeared on paromomycin sulfate administration. Paromomycin sulfate seems to be effective in the prevention of endotoxemia and the associated renal impairment in cirrhosis in man[6]. Significantly higher frequencies of resistance to paromomycin, kanamycin, neomycin and tobramycin were observed in S. aureus isolates from PS (paromomycin supplemented) birds. Paromomycin supplementation resulted in resistance to aminoglycosides in bacteria of PS turkeys. Co-selection for resistance to other antimicrobial agents was observed in E. coli isolates[7].