RADIOCARBON DATING OF CHARCOALS FROM HISTORICAL MORTARS FROM TÝŘOV AND PYŠOLEC CASTLES.

Organic inclusions in lime binders provide useful samples for radiocarbon dating of historical objects. Two Czech castles Týřov and Pyšolec from Late Middle Ages were explored, and tens of charcoals were found in their walls. The radiocarbon content of the charcoals was measured with accelerator mass spectrometry.

Multiple In vitro biological effects of phenolic compounds from Morus alba root bark.

Ethnopharmacological Relevance: Morus alba L. is used in traditional Chinese medicine for the treatment of various diseases, including bacterial infections and inflammation. As a rich source of phenolic compounds, the plant is an object of many phytochemical and pharmacological studies.

Phytochemical Analysis of and -Hexane Extracts and the HPLC Quantitation of Triterpenes.

Previously tested -hexane extracts of the showed promising bioactivity in vivo. Because triterpenes could account for this activity, -hexane extracts were analyzed by HPLC to identify and quantify the triterpenes as the most abundant constituents. Other and species, potentially containing triterpenic aglycones, were included in the study.

A new isoflavanone from Iresine herbstii.

A new isoflavanone 2',2,5-trimethoxy-6,7-methylenedioxyisoflavanone was isolated from the aerial parts of Iresine herbstii, together with isoflavone tlatlancuayin (2',5-dimethoxy-6,7-methylenedioxyisoflavone). The structure was identified using spectroscopic analysis. This is the first description of a methoxy group occurrence at position 2 of the isoflavanone skeleton.

[Medicinal plants and diabetes mellitus].

Diabetes mellitus is a group of chronic metabolic disorders. Hyperglycaemia and other related disturbances in the body's metabolism can result in serious damage to many of the body's systems, especially the blood vessels and nerves. Across the globe, there are an estimated 150 million people suffering from diabetes mellitus, which causes about 5 % of all deaths globally each year.