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The genus chenopodium: Phytochemistry, ethnopharmacology and pharmacology
The review includes 154 references on the genus Chenopodium covered up to December 2008 and has been compiled using references mainly from Chemical Abstracts and Pubmed. This article briefly reviews… Expand
Radical scavenging and antioxidant activities of methanolic extracts from Hypericum species growing in Bulgaria
Thirteen Hypericum species growing in Bulgaria were investigated for free radical-scavenging activity, antioxidant activity, total tannins and total flavonoids contents. Methanolic extracts from the… Expand
Mangiferin and isomangiferin in some Hypericum species
Mangiferin was found in 26 and isomangiferin in 33 of the 36 evaluated species from Hypericum L., belonging to 17 sections of the genus. These substances are reported here in 25 taxa for the first… Expand
First optical identification of a supersoft X-ray source in M31
We propose the first association of an optical counterpart with a luminous supersoft X-ray source in M31, RX J0044.0+4118, observed with ROSAT in July 1991. The PSPC position is at 1.6" angular… Expand
Effect of benzophenones from Hypericum annulatum on carbon tetrachloride-induced toxicity in freshly isolated rat hepatocytes.
- M. Mitcheva, M. Kondeva, V. Vitcheva, P. Nedialkov, G. Kitanov
- Medicine, Chemistry
- Redox report : communications in free radical…
Five benzophenones and a xanthone, isolated from Hypericum annulatum Moris, were investigated for their protective effect against carbon tetrachloride toxicity in isolated rat hepatocytes. The… Expand
Benzophenone O-glucoside, a biogenic precursor of 1,3,7-trioxygenated xanthones in Hypericum annulatum.
Two benzophenones, hypericophenonoside (1) and annulatophenone (2) were isolated from the methanol extract of the herb of Hypericum annulatum. The structures of the benzophenones were established as… Expand
ANTIOXIDANT ACTIVITY OF TRIBULUS TERRESTRIS - A NATURAL PRODUCT IN INFERTILITY THERAPY
Antioxidant potential of Tribulus terrestris L. herbal preparations was evaluated using 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2′-azino-bis(3ethylbenzothiazoline-6-sulfonic acid) di-ammonium salt… Expand
Cytoprotective and antioxidant effects of phenolic compounds from Haberlea rhodopensis Friv. (Gesneriaceae)
- M. Kondeva-Burdina, D. Zheleva-Dimitrova, P. Nedialkov, U. Girreser, M. Mitcheva
- Chemistry, Medicine
- Pharmacognosy magazine
- 1 October 2013
Background: Haberlea rhodopensis Friv. (Gesneriaceae) is a rare poikilohydric endemic and preglacial relict growing in Balkan Peninsula. Previous investigations demonstrated strong antioxidant,… Expand
Benzophenones and flavonoids from Hypericum maculatum and their antioxidant activities
- D. Zheleva-Dimitrova, P. Nedialkov, U. Girreser, G. Kitanov
- Chemistry, Medicine
- Natural product research
- 8 August 2012
The occurrence of three known benzophenones, namely annulatophenonoside, acetylannulatophenonoside and annulatophenone as well as a flavonol O-glycoside guajaverin in the aerial parts of Hypericum… Expand
Study on antibacterial activity of Haberlea rhodopensis.
The present work is a preliminary study of the antibacterial activity of the total extract of the medicinal plant Haberlea rhodopensis. A total extract from Haberlea rhodopensis leaves macerated for… Expand