background & aim:hypericum perforatum l. is native to iran. this herb is one of the most important medicinal plants and had many medical effects.this experiment was conducted to investigate the effects of feeding hypericum perforatum and protexin on performance, carcass characteristics and intestinal morphology japanese quails. experimental: a total of 240 ten days old quails were divided into ...

The first in vitro study of seed dormancy breakage Iranian populations St. John’s Wort (Hypericum perforatum) with different geographical origins

Natural product Hypericum perforatum L. has been used in folk medicine to improve mental performance. However, the effect of H. perforatum L. on metabolism is still unknown. In order to test whether H. perforatum L. extract (EHP) has an effect on metabolic syndrome, we treated diet induced obese (DIO) C57BL/6J mice with the extract. The chemical characters of EHP were investigated with thin-lay...

BACKGROUND St. John's wort (Hypericum perforatum L.) is an herbaceous plant that is native to Europe, West Asia and North Africa and that is recognized and used worldwide for the treatment of mild and moderate depression. It also has been shown to be therapeutic for the treatment of burns, bruises and swelling and can be used for its wound healing, antiviral, antimicrobial, antioxidant, analges...

Identifying specialist and generalist species is of great interest to conservation biologists, population ecologists, and population geneticists. Specialization can be quantified with or without abundant data; we contend and prove that using floral abundance data leads to better identification of specialists. This can be of importance when analyzing non-native species, such as the Hypericum per...

Stamenković, J., Radojković, I., Đorđević, A., Jovanović, O., Petrović, G., Stojanović, G.: Optimization of HPLC method for the isolation of Hypericum perforatum L. methanol extract. Biologica Nyssana, 4 (12), December 2013: 81-85. St. John's Wort (Hypericum perforatum L.) is one of the most studied plant species in the family Hypericaceae. The aim of this study was the identification of the co...

The effects of Hypericum perforatum (St John's wort) on morphine withdrawal syndrome and comparison with clonidine have been investigated in morphine-dependent rats. Adult male Wistar rats were subjects. The frequencies of withdrawal behavioral signs (rearing, teeth chattering and jumping) induced by naloxone challenge were demonstrated in morphine dependent rats receiving Hypericum perforatum ...

Hexaploid seeds are produced by predominantly tetraploid populations of Hypericum perforatum, but the fate of hexaploid seedlings and their reproductive behavior have not been closely examined. We used flow cytometry to analyze single seeds and individual plant samples of three accessions of H. perforatum to determine ploidy levels and reproductive pathways. Seed samples of all three accessions...

St. John's wort (Hypericum perforatum) has been used as a medical herb for over 2000 years. Over the past two decades, its application as a standardized plant extract for treating depression has undergone rigorous scientific investigation, and its effectiveness has been shown in studies comparing it with other commonly used antidepressants and placebos. Safety and tolerability studies have reve...

Extracts from Hypericum perforatum (St. John’s wort; Clusiaceae) are widely used for the treatment of mild to moderate depression. Four classes of constituents – hyperforins, hypericins, flavonoids, and xanthones – appear to contribute to the antidepressant activity. Interestingly, all four classes of secondary metabolites involve polyketide derivatives. Key reactions of their biosyntheses are ...