In the present paper are discussed the results of the investigations of the phenylpropanoids of the medicinal plants which are of the great interest as the sources of the neurotropic, adaptogenic, immunostimulating, antioxidative, and hepatoprotective preparations. There were shown the necessity of using of the standard samples of triandrin (Rhodiola rosea L. tissue cultures, Salix viminalis L....

INTRODUCTION When directly exposed to various echinacea fractions, human leukocytes ex vivo are strongly stimulated to proliferate and to produce immunostimulation and inflammatory cytokines. A comparison of fractions containing lipoidal small molecules and high-molecular-weight water-soluble polysaccharides indicates that the latter are substantially more potent as immunostimulants. Echinacea ...

Alkamides are one of the most important constituents of lipophilic extracts of Echinacea angustifolia roots. These compounds play an important role in the versatile pharmacological actions of this plant. The present study aimed to compare the concentrations of isomeric dodeca-2E,4E,8Z,10E/Z-tetraenoic acid isobutylamides (DTAI) in brain and periepididymal fat tissues and blood plasma of rats. T...

Received: 5/May/2007, Accepted: 2/Dec/2007 Objective: Purple cone flower plant (Echinacea purpurea) is one of the most important Herbal products in many countries. Up to now a lot of experiments demonstrated the controversial effects of this herb on immune system . In this research we study the in vivo and in vitro effect of Iranian E.purpurea extract on cellular immunity. Materials and Methods...

Americans spend between $3.5 and $5 billion annually on herbal treatments, and nearly 50 million individuals currently report use of botanical supplements. With so many herbal products on the market, it is imperative that physicians thoroughly question patients with regard to supplement use. Physicians must understand the benefits and risks associated with medicinal herbs and counsel patients a...

Echinacea purpurea (EP) and Echinacea angustifolia (EA) are ones of the most important world's herbs with immunotropic activity. They were traditional medicinal plants used by North American Indians for the treatment of various illnesses. Now they are cultivated in many countries and are used mainly to treat respiratory tract infections. Rhodiola rosea (RR) and Rhodiola quadrifida (RQ) are medi...

To enhance the genetic resource base of Echinacea purpurea (L.) Moench, a tetraploid was developed by treating seeds with different concentrations of colchicine. For further multiplication, in vitro micropropagation through adventitious shoot induction and proliferation was achieved. Shoot buds were induced directly on adaxial surface of mature leaf tissues growing on MS medium supplemented wit...