Degradation of the components of Leonurus Herb was examined during drying. Compounds 1 and 2 were detected on TLC at lower temperature, but not at higher temperature. Their chemical structures were determined by spectral methods. They immediately decomposed even at 40°C in chloroform solution. They are believed to be transformed through a retro-aldol reaction. Compounds 1 and 2 have not been pr...

In plant virus ecology, weeds are regarded as wild reservoirs of viruses and as potential sources for insect-mediated transmission of viruses. During field surveys in 2013-2014, three Leonurus sibiricus plants showing virus-like symptoms were collected from pepper fields in Daegu, Seosan, and Danyang in Korea. Molecular diagnosis assays showed that the collected L. sibiricus samples were infect...

Two new sesquiterpenoids, (-)-(1S*,2S*,3R*)-3-ethoxycupar-5-ene-1,2-diol (1) and (-)-(1S*,4S*,9S*)-1,9-epoxybisabola-2,10-diene-4-ol (2), along with six known compounds 3-8, were isolated from the EtOH extract of the herb of Leonurus japonicus. Their structures were elucidated by physical and spectroscopic analysis. In the in vitro assays, compounds 7 and 8 showed obvious antibacterial activity...

The review deals with analysis and classification of literature data on phamacognostic study (botanical characteristics, geographical distribution, chemical composition and use in medicine) of species of Motherwort genus (Leonums L.). The review unveils opportunities for comprehensive study and development of approaches to the standardization of raw materials of Turkistan motherwort (L. turkest...

The pars intercerebralis of the brain of the desert locust contains about 2,400 cells in two groups, which stain with chrome-haematoxylin-phloxin and with paraldehydefuchsin. On the basis of differences in size and staining reactions, four types of cell, called A-, B-, C-, and D-cells may be differentiated. The Aand B-cells produce different kinds of material; they are not thought to be stages ...

BACKGROUND Leonurus heterophyllus sweet has been suggested to have cardioprotective effects against heart diseases, including ischemic diseases and ventricular remodeling. However, the active ingredients of the herb and the underlying mechanisms are poorly understood. The aim of the present study was to investigate the effects of stachydrine (STA), a major constituent of Leonurus heterophyllus ...