The most studied phyto constituent isolated from Virola surinamensis (Rol. ex Rottb.) Warb.,
Myristicaceae, is the tetrahydrofuran neolignan grandisin, which exhibits a series of …

En el presente trabajo se evaluaron el contenido de flavonoides, las actividades
antimicrobianas y antioxidante de los propóleos de abejas sin aguijón, Melipona …

Twenty-two synthetic analogues of neolignans comprising β-ketoethers and β-ketosulfides
were obtained from condensation reactions among β-bromoketones and phenols or …

The dichloromethane extract of Larrea tridentata (Creosote bush, Zygophyllaceae) showed
activity against the protozoan pathogens Trypanosoma brucei rhodesiense, Trypanosoma …

The creosote bush (Larrea tridentata) accumulates a complex mixture of 8–8′
regiospecifically linked lignans, of which the potent antioxidant nordihydroguaiaretic acid …

Three seco-iridoids 7-methoxydiderroside, 6′-O-acetyldiderroside and 8-O-
tigloyldiderroside, were isolated from the wood bark of Calycophyllum spruceanum together …

Endophytic fungi are ubiquitous fungi that reside inter-or intracellularly in plant parts for at
least a portion of their lives without causing apparent symptoms of infection (Petrini, 1991) …

The therapy of parasitic diseases has relied, until recently, on the use of a very limited
number of drugs, most of them of low efficacy, leading to side effects and in certain cases …

Dengue is a tropical disease caused by an arbovirus transmitted by the mosquito Aedes
aegypti. Because no effective vaccine is available for the disease, the strategy for its …

The present study was aimed at the identification of biological components from pathogenic-
infected Astragalus adsurgens with an activity-guided purification process. Fifteen flavonoids …