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D-+-Galactosamine (Synonyms: D-(+)-Galactosamine)

Catalog No.GC11746 Copy One-Click Copy Product Info

D-+-Galactosamine is a highly selective hepatotoxin that causes liver damage primarily through the production of free radicals and the consumption of uracil nucleotides.

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D-+-Galactosamine Chemical Structure

Cas No.: 1772-03-8

Size Price Stock Qty
100mg
$35.00
In stock
500mg
$67.00
In stock

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Sample solution is provided at 25 µL, 10mM.



Description of D-+-Galactosamine

D-+-Galactosamine is a highly selective hepatotoxin that causes liver damage primarily through the production of free radicals and the consumption of uracil nucleotides[1]. D-+-Galactosamine is a 6-carbon amino sugar derived from galactose that is used to induce hepatitis in the liver of rodents[2]. D-+-Galactosamine poisoning can also lead to renal insufficiency, so renal failure is often associated with end-stage liver damage[3].

In vitro, D-+-Galactosamine (5mM) treatment of mouse primary hepatocytes for 24h significantly induced apoptosis 2h after hepatotoxin administration, significantly increased cell necrosis 24h after administration, induced caspase-3 activation and DNA fragmentation in hepatocytes, but did not change the activity of caspase-6, -8, -9, SMases or cytochrome c release [4]. Treatment of rat primary hepatocytes with D-+-Galactosamine (1-40 mM) for 24 h reduced mitochondrial dehydrogenase activity and glutathione content in a dose-dependent manner, and increased the concentration of lipid peroxide MDA[5].

In vivo, a single intraperitoneal injection of D-+-Galactosamine (500 mg/kg) in Sprague-Dawley rats caused significant damage to liver tissue, increased serum aspartate and alanine aminotransferase, γ-glutamyl transpeptidase, alkaline phosphatase, lactate dehydrogenase, sialic acid and uric acid levels, increased serum superoxide dismutase, glutathione peroxidase, glutathione-S-transferase, catalase activities and lipid peroxidation values, and reduced serum and liver glutathione levels[6]. A single intraperitoneal injection of D-+-Galactosamine (1400 mg/kg) in Wistar rats induced acute liver failure with severe parenchymal necrosis and severe lobular and periportal inflammatory infiltration in the liver[7].

References:
[1] Endo Y, Shibazaki M, Yamaguchi K, et al. Enhancement by galactosamine of lipopolysaccharide (LPS)‐induced tumour necrosis factor production and lethality: its suppression by LPS pretreatment[J]. British journal of pharmacology, 1999, 128(1): 5-12.
[2] Saracyn M, Zdanowski R, Brytan M, et al. D-Galactosamine intoxication in experimental animals: is it only an experimental model of acute liver failure?[J]. Medical Science Monitor: International Medical Journal of Experimental and Clinical Research, 2015, 21: 1469.
[3] Sinha M, Manna P, Sil P C. Amelioration of galactosamine-induced nephrotoxicity by a protein isolated from the leaves of the herb, Cajanus indicus L[J]. BMC complementary and alternative medicine, 2007, 7: 1-18.
[4] Siendones E, JIMÉNEZ‐GÓMEZ Y, Montero J L, et al. PGE1 abolishes the mitochondrial‐independent cell death pathway induced by D‐galactosamine in primary culture of rat hepatocytes[J]. Journal of gastroenterology and hepatology, 2005, 20(1): 108-116.
[5] Kučera O, Lotková H, Kanďár R, et al. The model of D-galactosamine-induced injury of rat hepatocytes in primary culture[J]. Mesenchymal stem cells isolated from the human bone marrow: Cultivation, phenotypic and changes, 2006, 49(1): 59-65.
[6] Catal T, Tunali S, Bolkent S, et al. An antioxidant combination improves histopathological alterations and biochemical parameters in D-galactosamine-induced hepatotoxicity in rats[J]. European Journal of Biology, 2017, 76(1): 14-19.
[7] Éboli L P C B, Netto A A S, Azevedo R A, et al. Evaluating the best time to intervene acute liver failure in rat models induced by d-galactosamine[J]. Acta Cirurgica Brasileira, 2016, 31(12): 783-792.

Protocol of D-+-Galactosamine

Cell experiment [1]:

Cell lines

Hepatocytes

Preparation Method

Cells were treated with PGE1 (1mM) 2 h before D-+-Galactosamine (5mM) and then cultured for 24 h. Apoptosis was determined by DNA fragmentation and caspase-3, -6, -8, and -9 activation in hepatocytes. Necrosis was determined by measuring lactate dehydrogenase (LDH) activity in the culture medium.

Reaction Conditions

5mM; 0-24h

Applications

D-+-Galactosamine significantly induced cell apoptosis 2 hours after hepatotoxin administration and significantly increased cell necrosis 24 hours after administration.

Animal experiment [2]:

Animal models

Sprague-Dawley rats

Preparation Method

The rats were separated into four groups of 10 rats each: (1) control animals (0.9% NaCl i.p.); (2) control animals given antioxidants (100 mg/kg/day ascorbic acid,100 mg/kg/day alpha tocopherol, 15 mg/kg/day beta carotene, and 0.2 mg/kg/day sodium selenate, p.o.); (3)animals given only a single dose of D-+-Galactosamine (500mg/kg, i.p.) (dissolved in 0.9% NaCl); (4)animals given D-+-Galactosamine and antioxidants. D-+-Galactosamine was administered on day 3, and rats were sacrificed 7 hours after the last antioxidant administration. Blood samples were collected and liver tissue samples were obtained for biochemical and histological analyses.

Dosage form

500mg/kg; i.p.

Applications

D-+-Galactosamine administration caused significant damage to liver tissue. Serum aspartate and alanine aminotransferase, γ-glutamyl transpeptidase, alkaline phosphatase, lactate dehydrogenase, sialic acid, and uric acid levels were increased. Serum and liver glutathione levels were decreased, and serum superoxide dismutase, glutathione peroxidase, glutathione-S-transferase, catalase activities, and lipid peroxidation values ​​were increased in the D-+-Galactosamine group.

References:

[1]Siendones E, JIMÉNEZ‐GÓMEZ Y, Montero J L, et al. PGE1 abolishes the mitochondrial‐independent cell death pathway induced by D‐galactosamine in primary culture of rat hepatocytes[J]. Journal of gastroenterology and hepatology, 2005, 20(1): 108-116.

[2]Catal T, Tunali S, Bolkent S, et al. An antioxidant combination improves histopathological alterations and biochemical parameters in D-galactosamine-induced hepatotoxicity in rats[J]. European Journal of Biology, 2017, 76(1): 14-19.

Chemical Properties of D-+-Galactosamine

Cas No. 1772-03-8 SDF
Synonyms D-(+)-Galactosamine
Chemical Name (2R,3R,4R,5R)-2-amino-3,4,5,6-tetrahydroxyhexanal hydrochloride
Canonical SMILES N[C@@]([C@](O)([H])[C@](O)([H])[C@@](O)([H])CO)([H])C=O.Cl
Formula C6H13NO5.HCl M.Wt 215.63
Solubility ≥ 21.6mg/mL in Water Storage Store at RT
General tips Please select the appropriate solvent to prepare the stock solution according to the solubility of the product in different solvents; once the solution is prepared, please store it in separate packages to avoid product failure caused by repeated freezing and thawing.Storage method and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored at -20°C, please use it within 1 month.
To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time.
Shipping Condition Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request.

Complete Stock Solution Preparation Table of D-+-Galactosamine

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1 mg 5 mg 10 mg
1 mM 4.6376 mL 23.1879 mL 46.3757 mL
5 mM 927.5 μL 4.6376 mL 9.2751 mL
10 mM 463.8 μL 2.3188 mL 4.6376 mL
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