Results 91 to 100 of about 25,050 (248)

Effects and treatment methods of acupuncture and herbal medicine for premenstrual syndrome/premenstrual dysphoric disorder: systematic review [PDF]

open access: yes, 2014
BACKGROUND: During their reproductive years about 10% of women experience some kind of symptoms before menstruation (PMS) in a degree that affects their quality of life (QOL).
Dong Il Kim, Min-Sun Choi, Su Hee Jang
core   +1 more source

Impact of Soil on Biomass Yield and Accumulation of Lipophilic Secondary Metabolites in Four Hypericum Species

open access: yesAgriculture
The genus Hypericum is a widely distributed ornamental and therapeutic herb known for its diverse bioactive compounds, including xanthones. The levels of secondary metabolites in plants are influenced by the specific plant part, agronomic conditions, and
Ieva Miķelsone   +5 more
doaj   +1 more source

Quality Control of Hypericum perforatum L. Analytical challenges and recent progress [PDF]

open access: yes, 2017
Objectives The most widely applied qualitative and quantitative analytical methods in the quality control of Hypericum perforatum extracts will be reviewed, including routine analytical tools and most modern approaches.
Anastasia Agapouda   +17 more
core   +3 more sources

On the Mechanism of Action of Anti-Inflammatory Activity of Hypericin: An In Silico Study Pointing to the Relevance of Janus Kinases Inhibition

open access: yesMolecules, 2018
St. John’s Wort (Hypericum perforatum L.) flowers are commonly used in ethnomedical preparations with promising outcomes to treat inflammation both per os and by topical application. However, the underlying molecular mechanisms need to be described
Luca Dellafiora   +4 more
doaj   +1 more source

Herb-Induced Liver Injury in the Berlin Case-Control Surveillance Study [PDF]

open access: yes, 2016
Herb-induced liver injury (HILI) has recently attracted attention due to increasing reports of hepatotoxicity associated with use of phytotherapeutics. Here, we present data on HILI from the Berlin Case-Control Surveillance Study. The study was initiated
Andersohn, Frank   +6 more
core   +2 more sources

Quinones as Key Intermediates in Natural Products Synthesis. Syntheses of Bioactive Xanthones from Hypericum perforatum

open access: yesMolecules, 2009
Two bioactive xanthones from Hypericum perforatum have been synthesized by direct routes. Benzo[c]xanthone 5 can be prepared from intermediate 4.
John Mengwasser, George A. Kraus
doaj   +1 more source

Impact of Origin and Biological Source on Chemical Composition, Anticholinesterase and Antioxidant Properties of Some St. John’s Wort Species (Hypericum spp., Hypericaceae) from the Central Balkans

open access: yesMolecules, 2013
The study shows the influence of the origin of plant material and biological source on the in vitro antioxidant (neutralization of DPPH and OH radical, nitric oxide, and inhibition of lipid peroxidation) and anticholinesterase activity of chemically ...
Biljana Božin   +6 more
doaj   +1 more source

Elemental fingerprinting of Hypericum perforatum (St John's Wort) herb and preparations using ICP-OES and chemometrics [PDF]

open access: yes, 2016
This is a pre-copyedited, author-produced PDF of an article accepted for publication in Journal of Pharmaceutical and Biomedical Analysis following peer review.
Evans, Sara J.   +3 more
core   +2 more sources

Hypericum perforatum L.

open access: yes, 2015
Profilo fitochimico- Il recente interesse per la chimica di questo genere ha portato all’isolamento di diversi composti dotati di differenti attività biologiche. Le classi chimiche più caratteristiche sono rappresentate dai naftodiantroni, acilfloroglucinoli, flavonoidi, xantoni, tannini, proantocianidine, benzofenoni, olio essenziale.
Rozicki, Adriana Paola   +2 more
openaire   +3 more sources

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