Abstract

A tannin extract of Sanguisorba officinalis L. contains tannin in a range of 35%-100% (w/w), wherein the content of total saponin is less than 10% (w/w), and the content of sanguisorbin I is less than 5% (w/w). The extract can protect bone marrow hematopoietic stem cells, relieve the inhibition of mouse bone marrow DNA caused by drugs for radiation therapy and chemotherapy, as well as increase numbers of leucocytes.

IPC Classes  ?

• A61K 31/352 - Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having six-membered rings with one oxygen as the only ring hetero atom condensed with carbocyclic rings, e.g. cannabinols, methantheline
• C07D 311/62 - Benzo [b] pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulfur atoms in position 2 or 4 with aryl radicals attached in position 2 with oxygen atoms directly attached in position 3, e.g. anthocyanidins
• A61K 36/739 - Sanguisorba (burnet)
• A61P 7/00 - Drugs for disorders of the blood or the extracellular fluid
• A61P 35/00 - Antineoplastic agents