نتایج جستجو برای: echinacea purpurea

تعداد نتایج: 2498  

2016
Weizhen Jiang Qingling Li Xiaolu Chen Yi Ren Rong Chen Hong Wu Yuesheng Yang

BACKGROUND Aneuploid ermpglasm is an important resource for genetic studies and identification of individual chromosomes in the cells of the aneuploid is an important step. The karyotype has already been established for purple coneflower (Echinacea purpurea L.), but due to the high similarity in the morphology of several pairs of chromosomes in this species, it cannot be used to identify indivi...

2013
Luiz H. Rosa Nurhayat Tabanca Natascha Techen David E. Wedge Zhiqiang Pan Ulrich R. Bernier James J. Becnel Natasha M. Agramonte Larry A. Walker Rita M. Moraes

Echinacea is one of the top ten selling medicinal herbs in Europe and United States. Commercially available formulations may contain different plant parts of three species (Echinacea purpurea, E. pallida, and E. angustifolia). Our study evaluates the diversity of microbial community associated with healthy E. purpurea clones and their ability to produce defense compounds. We recovered and ident...

Journal: :Journal of pharmaceutical and biomedical analysis 2004
Federica Pellati Stefania Benvenuti Lara Magro Michele Melegari Fabrizia Soragni

The aim of this study was to set up and validate an RP-LC method with DAD-detection to quantify caffeic acid derivatives in various Echinacea spp. Samples were extracted with 80% methanol. The analyses were carried out on a Lichrospher RP-18 column (125 mm x 4 mm i.d., 5 microm), with a mobile phase gradient, which increases the acetonitrile level in a phosphoric acid solution (0.1%). The flow ...

1999
Kathleen A. McKeown

Echinacea (Asteraceae), a North American genus of 11 recognized taxa (McGregor 1968), is of great economic and scientific interest. Three species, E. angustifolia DC. var. angustifolia, E. pallida (Nutt.) and E. purpurea (L.) Moench, show potential pharmacological activity (Bauer et al. 1988a; Bauer and Wagner 1991). Hydroalcoholic extracts of the roots of these three taxa stimulate phagocytosi...

2015
Zahide Esra Durak Hilmi Kocaoğlu Hikmet Can Çubukçu

Aim: This study aims to investigate the possible effects of aqueous Echinacea (E. Purpurea, whole plant) extract on Adenosine deaminase (ADA) activity in cancerous and non-cancerous human gastric and colon tissues. Materials and Methods: Thirty three cancerous and 33 non-cancerous human gastric tissues, and 25 cancerous and non-cancerous human colon tissues removed by surgical operations were s...

Journal: :Journal of medicinal food 2007
Zili Zhai Yi Liu Lankun Wu David S Senchina Eve S Wurtele Patricia A Murphy Marian L Kohut Joan E Cunnick

Echinacea preparations are commonly used as nonspecific immunomodulatory agents. Alcohol extracts from three widely used Echinacea species, Echinacea angustifolia, Echinacea pallida, and Echinacea purpurea, were investigated for immunomodulating properties. The three Echinacea species demonstrated a broad difference in concentrations of individual lipophilic amides and hydrophilic caffeic acid ...

2002
J. Kapteyn

The genus Echinacea, Asteraceae, is comprised of nine species, which are perennial herbs indigenous to North America and which have been traditionally used as medicinal plants for centuries. Three Echinacea species, E. angustifolia DC var. angustifolia, E. purpurea (L.) Moench, and E. pallida (Nutt.) Nutt., are currently being traded internationally in the natural products market. Echinacea pro...

Journal: :Journal of animal science 2003
J R Hermann M S Honeyman J J Zimmerman B J Thacker P J Holden C C Chang

The effect of dietary Echinacea purpurea on performance, viremia, and ontogeny of the humoral antibody response against porcine reproductive and respiratory syndrome virus (PRRSV) infection was evaluated in weaned pigs. In three replicates, 120 weaned pigs (25 +/- 1 d of age; 8.46 +/- 0.48 kg of BW) from a PRRSV-naive herd were allotted randomly to one of eight pens (diets) in two separate room...

Journal: :The Journal of pharmacy and pharmacology 2005
Joanne Barnes Linda A Anderson Simon Gibbons J David Phillipson

This paper reviews the chemistry, pharmacology and clinical properties of Echinacea species used medicinally. The Echinacea species Echinacea angustifolia, Echinacea pallida and Echinacea purpurea have a long history of medicinal use for a variety of conditions, particularly infections, and today echinacea products are among the best-selling herbal preparations in several developed countries. M...

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