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Topic: Hexose


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In the News (Sat 5 Dec 09)

  
  Hexose Transporters
The hexoses glucose, galactose and fructose serve as basic fuel molecules for eucaryotic cells.
Hexose transporters also have fairly distinctive patterns of expression among tissues.
This cell has at least three hexose transporters.
www.vivo.colostate.edu /hbooks/molecules/hexose_xport.html   (471 words)

  
  Hexose - Wikipedia, the free encyclopedia
In organic chemistry, a hexose is a monosaccharide with six carbon atoms having the chemical formula C
Hexoses are classified by functional group, with aldohexoses having an aldehyde at position 1, and ketohexoses having a ketone at position 2.
Only the naturally occurring hexoses are capable of being fermented by yeasts.
en.wikipedia.org /wiki/Hexose   (242 words)

  
 Method of improving the properties of a flour dough, a flour dough improving composition and improved food products - ...
Hexose oxidase (D-hexose:O.sub.2 -oxidoreductase, EC 1.1.3.5) is an enzyme which in the presence of oxygen is capable of oxidizing D-glucose and several other reducing sugars including maltose, glucose, lactose, galactose, xylose, arabinose and cellobiose to their corresponding lactones with subsequent hydrolysis to the respective aldobionic acids.
The column was washed with the equilibration buffer and hexose oxidase eluted with a 450 ml gradient of 0 to 1 M of NaCl in equilibration buffer.
The size of the purified native hexose oxidase was determined by gel permeation chromatography using a Superose 6 HR 10/30 column at a flow rate of 0.5 ml/minute in 50 mM sodium phosphate buffer, pH 6.4.
www.freepatentsonline.com /6726942.html   (10814 words)

  
 Hexose Transporters
Tranport hexoses against a concentration gradient using energy provided by an electrochemical gradient of sodium, which is cotransported (SGLUT1).
On the basolateral plasma membranes is GLUT2, which allows diffusion of all three of these hexoses out of the cell into extracellular fluid and ultimately, into blood.
The hexose transporters are large integral membrane proteins.
arbl.cvmbs.colostate.edu /hbooks/molecules/hexose_xport.html   (471 words)

  
 Active Hexose Correlated compound, AHCC   (Site not responding. Last check: 2007-10-19)
AHCC (active hexose correlated compound) is a proprietary mushroom compound.
It is wellresearched in Japan for its immune-supportive properties, in particular the ability to increase natural killer cell and macrophage activity.
AHCC, or “active hexose correlated compound,” is a rich source of polysaccharides (beta glucan 1,3 and activated hemicellulose) and glycoproteins, plus amino acids and minerals.
www.getnutri.com /AHCC/Active-Hexose-Correlated--compound.htm   (672 words)

  
 In wounded sugar beet (Beta vulgaris L.) tap-root, hexose accumulation correlates with the induction of a vacuolar ...
In wounded sugar beet (Beta vulgaris L.) tap-root, hexose accumulation correlates with the induction of a vacuolar invertase isoform -- Rosenkranz et al.
In wounded sugar beet (Beta vulgaris L.) tap-root, hexose accumulation correlates with the induction of a vacuolar invertase isoform
the VI isoform responsible for wound-induced hexose accummulation
jxb.oxfordjournals.org /cgi/content/full/52/365/2381   (2155 words)

  
 Hexokinase - Wikipedia, the free encyclopedia
A hexokinase is an enzyme that phosphorylates a six-carbon sugar, a hexose, to a hexose phosphate.
Phosphorylation of a hexose such as glucose often commits it to a limited number of intracellular metabolic processes (such as glycolysis or glycogen synthesis).
This is aided by the fact that phosphorylation also makes it unable to move or be transported out of the cell.
en.wikipedia.org /wiki/Hexokinase   (797 words)

  
 Source Naturals AHCC, AHCC Active Hexose Correlated Compound
AHCC, or "active hexose correlated compound" is a rich source of polysaccharides (beta glucan 1,3 and activated hemicellulose) and glycoproteins, plus amino acids and minerals.
AHCC (Active Hexose Correlated Compound) is derived from organically cultivated mushroom mycelia (the rich pre-mushroom stage, a network of fibrous filaments plus the medium it lives on and uses for fuel).
AHCC® (Active Hexose Correlated Compound) is a proprietary compound produced by cultivation and enzy...
www.nutrovita.com /productdetail.asp?pid=29133   (538 words)

  
 Hexose monophosphate shunt   (Site not responding. Last check: 2007-10-19)
Hexose monophosphate shunt with the availability of hexose monophosphate shunt this procedure or other articles during hexose monophosphate shunt this simplified version of shunt.
The hexose monophosphate shunt result is absorbed into another region of the size of small fullscaledeflection voltage, it is brain.
Hexose monophosphate shunt this large resistor is known as a small region of the honcode principles.
shunt.brassfinder.net /hexose-monophosphate-shunt.html   (1322 words)

  
 Hexose - Encyclopedia, History, Geography and Biography
This page was last modified 15:27, 24 August 2006.
This encyclopedia, history, geography and biography article about Hexose contains research on
Hexose, Aldohexoses, Ketohexoses, Mutarotation, See also and Monosaccharides.
www.arikah.com /encyclopedia/Hexose   (242 words)

  
 hexose   (Site not responding. Last check: 2007-10-19)
A hexose is a monosaccharide with six carbon atoms.
They either have an aldehyde functional group in position 1 (aldohexoses), or a ketone functional group in position 2 (ketohexoses).
Interestingly, only the naturally occurring hexoses are capable of being fermented by yeasts.
www.33beat.com /hexose.html   (271 words)

  
 SSAT - 2006 Abstracts: Hexose Transporter Expression in the Mouse Jejunum: Role of Diurnal Rhythms   (Site not responding. Last check: 2007-10-19)
Hexose Transporter Expression in the Mouse Jejunum: Role of Diurnal Rhythms
BACKGROUND: Expression of hexose transporters (mRNA and proteins) is known to have a diurnal variation in rat jejunum, however, the subject remains unexplored in the mouse.
CONCLUSION: Hexose transporter mRNA and protein (SGLT1 and GLUT2) levels exhibit a diurnal rhythm in temporal association with the nocturnal eating pattern of mice; protein expression peaks after message expression.
www.ssat.com /cgi-bin/abstracts/06ddw/SSAT_DDW06_58.cgi   (418 words)

  
 AHCC (500mg) - NOW Foods Active Hexose Correlated Compound
AHCC is a proprietary compound produced by cultivation and enzymatic modification of several species of mushroom mycelia, including shiitake, grown in rice bran extract.
Aviles H, Belay T, Fountain K, Vance M, Sun B, Sonnenfeld G. (2003) Active hexose correlated compound enhances resistance to Klebsiella pneumoniae infectin in mice in the hindlimb-unloading model of spaceflight conditions.� J Appl Physiol 95:491-496.
Ye SF, Ichimura K, Wakame K, Ohe M. Suppressive effects of Active Hexose Correlated Compound on the increased activity of hepatic and renal ornithine decarboxylase induced by oxidative stress.
www.lifeextensionvitamins.com /ah5nowfoache.html   (779 words)

  
 Differential effects of glucose and fructose on hexose metabolism in dog spermatozoa -- Rigau et al. 123 (4): 579 -- ...
Incubation of dog spermatozoa with 10 mmol l(-1) glucose or fructose rapidly increased the intracellular content of glucose 6-phosphate and fructose 6-phosphate, although the effect of fructose was greater.
Glut 3 and Glut 5 hexose transporters were the main hexose transporters in dog spermatozoa; however, other possible SGLT family-related hexose transporters were also localized.
Moreover, the differential hexose metabolism induced by the two sugars had distinct effects on the function of dog spermatozoa, as revealed by the diverse patterns of tyrosine phosphorylation.
www.reproduction-online.org /cgi/content/abstract/123/4/579   (367 words)

  
 8 The hexose monophosphate shunt
The final one of these pathways to be covered in this class is the hexose monophosphate shunt.
Dehydrogenation of pyruvate and the TCA occur in the mitochondria, which is useful because the NADH generated is then fed into the respiratory chain.
In contrast, the hexose monophosphate shunt occurs entirely in the cytoplasm.
watcut.uwaterloo.ca /webnotes/Metabolism/page-8.html   (296 words)

  
 Food Standards Australia New Zealand: A475 IAR Exec Summary (9 October 2002)
The hexose oxidase is produced, using recombinant DNA techniques, from the host yeast Hansenula polymorpha which contains the donor gene coding for hexose oxidase from the algae Chondrus crispus.
There is currently no approval for the use of hexose oxidase as a food enzyme in the Food Standards Code.
Hexose oxidase catalyses the oxidation of various mono and oligosaccharides to lactones and hydrogen peroxide.
www.foodstandards.gov.au /standardsdevelopment/applications/applicationa475hexoseoxidaseasaprocessingaidenzyme/a475iarexecsummary9o1736.cfm   (564 words)

  
 Multiple Hexose Transporters of Schizosaccharomyces pombe -- Heiland et al. 182 (8): 2153 -- The Journal of Bacteriology
The time-dependent repression of the prominent hexose transporters by
The molecular genetics of hexose transport in yeasts.
Kinetic characterization of individual hexose transporters of Saccharomyces cerevisiae and their relation to the triggering mechanism of glucose repression.
jb.asm.org /cgi/content/full/182/8/2153   (5288 words)

  
 Arsenic Trioxide Uptake by Hexose Permeases in Saccharomyces cerevisiae -- Liu et al. 279 (17): 17312 -- Journal of ...
demonstrate that arsenic is transported by hexose permeases.
That hexose permeases are capable of transporting arsenic trioxide
is predicted to form a six-membered ring with molecular similarity to a hexose.
www.jbc.org /cgi/content/full/279/17/17312   (2446 words)

  
 CHEMISTRY: ON THE SYNTHESIS OF HEXOSE CARBOHYDRATES
1) Hexose carbohydrates come in many forms, including the common sugar glucose, and are integral to biological processes as diverse as cell signaling, inflammation, the immune response, and tumor cell metastasis (1).
Each function is specific to a particular form of hexose, but studying how structure relates to function is limited by the difficulty of obtaining pure samples of the hexoses and their derivatives.
3) The Northrup-MacMillan(1) route to the hexoses exploits proline's tendency to condense with carbonyl compounds, a reaction that is fundamental in nature and chemical synthesis.
scienceweek.com /2004/sb041022-5.htm   (1862 words)

  
 Aldosterone mediates the changes in hexose transport induced by low sodium intake in chicken distal intestine -- ...
In chickens, low Na diets markedly decrease the hexose transport in the rectal segment of the large intestine; transport in the ileum shows a lower, but significant reduction and transport in the jejunum is unaffected.
Captopril also prevented the reduction of apical and basolateral hexose transport in ileum and rectum characteristic of the intestinal response to LS adaptation.
Administration of exogenous aldosterone to HS-fed birds induced hexose transport and binding properties typical of the LS-adapted animals.
jp.physoc.org /cgi/content/abstract/535/1/197   (470 words)

  
 Cloning and Expression of a Hexose Transporter Gene Expressed during the Ripening of Grape Berry -- Fillion et al. 120 ...
Cloning and Expression of a Hexose Transporter Gene Expressed during the Ripening of Grape Berry
a hexose transporter expressed during the ripening of the berries.
A, Sugar content of the berries, determined on free-run juice; B, signal intensity obtained with hexose transporter probes expressed in arbitrary units (A.U.) on a per microgram of RNA basis; C, corresponding autoradiograms showing the signals obtained with the vvht1 (down) and Vvht2A (up) probes.
www.plantphysiol.org /cgi/content/full/120/4/1083   (7200 words)

  
 Hexose   (Site not responding. Last check: 2007-10-19)
A hexose is a sugar with six carbon.
This category includes glucose, fructose, and galactose, the three basic monosaccharides for hexoses.
All is still licensed under the GNU FDL.
www.termsdefined.net /he/hexose.html   (243 words)

  
 Stimulation of the hexose monophosphate shunt independent of hydrogen peroxide and superoxide production in rabbit ...
Stimulation of the hexose monophosphate shunt independent of hydrogen peroxide and superoxide production in rabbit alveolar macrophages during phagocytosis
and activation of the hexose monophosphate shunt during phagocytosis by
hexose monophosphate shunt in rabbit AM during phagocytosis is independent
www.bloodjournal.org /cgi/content/abstract/50/5/935   (195 words)

  
 References
B. Sun, K. Kosuna, Effects of AHCC (Active Hexose Correlated Compound) in Both the prevention and treatment of carcinomas, Critical Appraisal of Unconventional/Alternative Interventions for Carcinoma of the Prostate, May 1998.
B. Sun et al., Fractions of AHCC (Active Hexose Correlated Compound) and their effects on macrophages and tumor cell lines, The 57th Annual Meeting of the Japanese Cancer Association, Sep 1998.
K. Wakame, Effect of Active Hexose Correlated Compound (AHCC) on diabetes induced by streptozotocin in the rat, The 119th Annual Meeting of the Japanese Society for Pharmacology, Mar 1999.
www.ahccresearch.com /references.html   (683 words)

  
 Are Lysosomes Involved in Hexose Transport Regulation? Turnover of Hexose Carriers and the Activity of Thiol Cathepsins ...
Turnover of Hexose Carriers and the Activity of Thiol Cathepsins are Arrested by Cyanate and Ammonia -- Christopher and Morgan 78 (7): 4416 -- Proceedings of the National Academy of Sciences
The inactivation of the cathepsins caused by cyanate was deduced to be the result of reversible blocking of sulhydryl groups essential to the thiol cathepsin activity.
The concomitant inhibition of thiol cathepsins and hexose carrier inactivation provided further evidence for the involvement of lysosomal proteases in at least part of the mechanism that regulates the rate of hexose transport in animal cells.
www.pnas.org /cgi/content/abstract/78/7/4416   (272 words)

  
 Immpower! Super Immunity Supplement That Works. Immpower at Discount Price   (Site not responding. Last check: 2007-10-19)
Fewer patients reoccurred in the Active Hexose Correlated Compound group, 49%, versus 67% in the control group.
Average survival was 23 months longer among patients who took Active Hexose Correlated Compound versus those who didn't.
Overall survival was improved in the Active Hexose Correlated Compound group.
www.peggyshealth.com /asp/immpower.html   (562 words)

  
 Active Hexose Correlated Compound - Shopping.com
AHCC (Active Hexose Correlated Compound) is a proprietary extract produced from specially...
AHCC® Active Hexose Correlated Compound 500mg w/o Bioperine®, 30 capsAHCC is a proprietary compound...
AHCC or Active Hexose Correlated Compound is a natural substance made from medicinal mushrooms...
www.shopping.com /xGS-Active_Hexose_Correlated_Compound   (796 words)

  
 Cyclooxygenase-2 (PTGS2) inhibitors augment the rate of hexose transport in L6 myotubes in an insulin- and AMPKalpha-ind   (Site not responding. Last check: 2007-10-19)
Cyclooxygenase-2 (PTGS2) inhibitors augment the rate of hexose transport in L6 myotubes in an insulin- and AMPKalpha-independent manner.
The inhibitors niflumic acid, nimesulide and rofecoxib increased the rate of hexose uptake in L6 myotubes in the absence of insulin and in a dose- and time-dependent manner.
In addition, none of the inhibitors modulated the rate of hexose transport in vascular endothelial and smooth muscle cells expressing PTGS2 and SCLC2A1.
www.galenicom.com /medline/article/16447059/au:Cohen+G   (387 words)

  
 Plasma D-Glucose, D-Fructose and Insulin Responses after Oral Administration of D-Glucose, D-Fructose and Sucrose to ...
Conclusions: The intake of D-fructose, as the free hexose or
Mean values (± SEM) refer to 3 (control experiments) or 4 (hexose administration) individual measurements.
the free hexose or as sucrose, favours D-glucose homeostasis,
www.jacn.org /cgi/content/full/23/5/414   (3521 words)

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