Results: 3070

Chemical variability between different organs of the medicinal plant Casearia sylvestris

The phytochemical profile of essential oils and extracts from Casearia sylvestris leaves, flowers and fruits have been investigated here. Leaf and flower extracts were prepared by sonication and analyzed by thin-layer chromatography and high-performance liquid chromatography. The phenolic content was det...

Efectividad del Oleozón® en el tratamiento de pacientes con discromía dental
Effectiveness of Oleozon® in the treatment of patients with dental dischromya

Medisan; 22 (1), 2018
Se realizó un estudio cuasiexperimental, de intervención terapéutica, para evaluar la efectividad del Oleozón® tópico y la luz halógena como fuente de luz azul y calor en el tratamiento de 52 pacientes con discromías dentales, atendidos en el Policlínico Docente Ramón López Peña del municipio...

Cuban flora species as a potential source of DNA protective compounds

Environmental exposure to genotoxic agents represents a major health concern for modern society. DNA damage could lead to mutations, which accumulative effect is closely related to degenerative and lethal diseases, such as cancer. Because of their structural and chemical diversity natural products play a...

Solidago chilensis Meyen (Asteraceae), a medicinal plant from South America: a comprehensive review: ethnomedicinal uses, phytochemistry and bioactivity

Solidago chilensis Meyen (Asteraceae) is a medicinal and aromatic herb widely distributed in South America. From 2000 to the present numerous articles on this species have been published, mainly in the last decade where the pharmacological studies and articles on its secondary metabolites have risen shar...

Effects of essential oils from two Lippia species on growth of phytopathogenic fungi

Chemical characterization of the essential oils of two Lippia species by GC-MS and NMR spectroscopy revealed that limonene (84.3%) and β-caryophyllene (6.1%) were the most abundant components in Lippia turbinata while (6S,7S,10S)-trans-davanone (99.1%) predominated in Lippia integrifolia. Antifungal act...

Linking the platelet antiaggregation effect of different strawberries species with antioxidants: metabolomic and transcript profiling of polyphenols

A comparative study of antioxidant properties, platelet antiaggregation activity and transcriptional analysis of flavonoid biosynthesis genes were performed in Fragaria x ananassa, F. vesca and F. chiloensis subsp chiloensis f. chiloensis and f. patagonica. Furthermore, differences in flavonoid content w...

Chemical constituents of essential oils from three Vietnamese species of Pinus

This paper reports the chemical composition of essential oils obtained from Pinus dalatensis Ferré, Pinus kwangtungensis Chun ex. Tsiang and Pinus armandii subsp. xuannhaensis L.K. Phan. The oils were studied by gas chromatograpgy (GC) and gas chromatography coupled to mass spectrometry (GC-MS). The ma...

Phthalate contamination of some plants and herbal products

Phthalate derivatives cause a number of risks to human health and the environment. Essential oil and volatile fractions of some vegetables and herbal products were extracted by hydrodistillation and percolation methods to analyze using gas chromatography and mass spectrometry (GC-MS) for evaluation of ph...

Toxicidad, genotoxicidad y actividad anti-Leishmania de aceites esenciales obtenidos de cuatro (4) quimiotipos del género Lippia

Los aceites esenciales (AEs), pertenecientes al género Lippia, son candidatos interesantes de formulaciones tópicas en el tratamiento de la leishmaniasis cutánea (LC). El objetivo de este trabajo fue determinar el perfil toxicológico y la actividad anti-Leishmania de AEs obtenidos de plantas colo...

Influence of biomaterials on scintigraphic diagnosis of periprosthetic infections. Ceftizoxime-99m technetium model

Acta cir. bras; 33 (1), 2018
Abstract Purpose: To compare the influence of two metallic implants in the diagnosis of periprosthetic infection using 99m technetium-labeled ceftizoxime. Methods: Twenty rats were randomly divided into four groups, which received sterile and contaminated titanium and stainless steel implants. After 3...