This invention relates to a novel use of
synephrine in the preparation of drugs for treating
cholestatic liver disease, belonging to the field of
pharmaceutical technology.
Cholestatic liver disease is characterized by
jaundice and conjugated
bilirubin and / or total
bilirubin hyperconjugation caused by impaired
bilirubin excretion due to various reasons. Its causes include common
bile duct stones,
pancreatic duct cancer, common
bile duct malignant tumors,
pancreatic cancer, biliary parasitic diseases,
viral hepatitis cirrhosis,
alcoholic liver disease,
fatty liver disease,
drug-induced
liver injury,
primary biliary cirrhosis, intrahepatic sclerosing cholangitis, and certain congenital diseases such as Dubin-Johnson syndrome and Rotor syndrome. This invention establishes a mouse
cholestasis model using
bile duct ligation and administers
synephrine by gavage to evaluate its protective effect against
liver injury. The results showed that
synephrine significantly improved
jaundice caused by
cholestasis, reduced
hepatocellular necrosis and
inflammatory infiltration caused by
cholestasis, alleviated bile duct dilation, decreased serum total bilirubin (TBIL) and direct bilirubin (DBIL), and reduced the levels of total bile acids (BA) in
liver tissue and
plasma. Furthermore, the above-mentioned effects of synephrine in improving cholestasis showed a clear
dose-dependent effect. This invention reveals for the first time the application of synephrine in
cholestatic liver disease, demonstrating good safety and promising clinical development prospects.