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Cholestyramine

Cat. No. M9815
Cholestyramine Structure
Synonym:

Colestyramin

Size Price Availability Quantity
500mg USD 55  USD55 In stock
1g USD 67  USD67 In stock
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Quality Control & Documentation
Biological Activity

Cholestyramine is a bile acid binding resin and can inhibit intestinal bile acid absorption which results in the increasing bile acid synthesis from cholesterol. Cholestyramine also induces hepatic lipogenic gene expression, which is attenuated by co-administration with GSPE.

Chemical Information
Molecular Weight 385.66
Formula C27H47N
CAS Number 11041-12-6
Storage Powder          -20°C   3 years ;  4°C   2 years
In solvent       -80°C   6 months ;  -20°C   1 month
Conversion of different model animals based on BSA (PMID: 27057123)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.

References

[1] Rebecca M Heidker, et al. PLoS One. Grape Seed Procyanidins and Cholestyramine Differentially Alter Bile Acid and Cholesterol Homeostatic Gene Expression in Mouse Intestine and Liver

[2] Cyrille Maugeais, et al. Atherosclerosis. rHDL administration increases reverse cholesterol transport in mice, but is not additive on top of ezetimibe or cholestyramine treatment

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