Phytochemical analysis and in vitro biological activity of three Hypericum species from the Canary Islands (Hypericum reflexum, Hypericum canariense and Hypericum grandifolium)

Fitoterapia ◽  
2015 ◽  
Vol 100 ◽  
pp. 95-109 ◽  
Author(s):  
Christian Zorzetto ◽  
Candelaria C. Sánchez-Mateo ◽  
Rosa M. Rabanal ◽  
Giulio Lupidi ◽  
Dezemona Petrelli ◽  
...  
Keyword(s):  
Biological Activity ◽  
Canary Islands ◽  
Phytochemical Analysis ◽  
Hypericum Species

Chemical characterization and in vitro biological activity of Cymbopogon citratus extracts against Haemonchus spp. and Trichostrongylus spp. nematodes from sheep

Parasitology ◽  
2020 ◽  
Vol 147 (13) ◽  
pp. 1559-1568
Author(s):  
Letícia Oliveira da Rocha ◽  
Gloria Cristina da Silva Lemos ◽  
Ivo José Curcino Vieira ◽  
Raimundo Braz-Filho ◽  
Silvério de Paiva Freitas ◽  
...  
Keyword(s):  
Biological Activity ◽  
Chemical Characterization ◽  
Gastrointestinal Nematodes ◽  
The Body ◽  
Intestinal Cells ◽  
Phytochemical Analysis ◽  
Cymbopogon Citratus ◽  
Thin Sections ◽  
Methanolic Extracts

AbstractMedicinal plants have been the focus of several studies due to their nematicide properties which can be used to control nematodes in sheep. No study has examined the morphological effects of Cymbopogon citratus on nematodes. Thus, this study evaluated the chemical composition, nematicidal activity and effects of C. citratus extracts on the morphology of eggs and infective larvae (L3) of sheep. Aqueous and methanolic extracts and fractions of C. citratus were obtained and analysed in vitro. The C. citratus extracts were effective against Haemonchus spp. and Trichostrongylus spp. larvae and eggs. Ten fractions were obtained from C. citratus, six of which had high ovicidal activity at 1000 μg mL−1, and two fractions had high activity at all tested concentrations. The phytochemical analysis identified the presence of compounds such as terpenoids, various ketones, esters, and fatty acids. The ultrastructural analysis showed deformations of the cuticle and wilting along the body of the nematodes at all concentrations. The muscular layer, intestinal cells and the mitochondria profile showed damage compared to the typical pattern. Ultra-thin sections of eggs treated with methanolic fractions of C. citratus presented modifications. This study showed the biological activity and effects of C. citratus on the gastrointestinal nematodes in sheep.

Phytochemical analysis and in vitro evaluation of the biological activity against herpes simplex virus type 1 (HSV-1) of Cedrus libani A. Rich.

Phytomedicine ◽  
2008 ◽  
Vol 15 (1-2) ◽  
pp. 79-83 ◽  
Author(s):  
Monica Rosa Loizzo ◽  
Antoine Saab ◽  
Rosa Tundis ◽  
Giancarlo A. Statti ◽  
Ilaria Lampronti ◽  
...  
Keyword(s):  
Biological Activity ◽  
Herpes Simplex Virus ◽  
Herpes Simplex ◽  
Virus Type ◽  
Herpes Simplex Virus Type ◽  
Phytochemical Analysis ◽  
In Vitro Evaluation ◽  
Simplex Virus

In vitro cytotoxic and antioxidant activity of some Hypericum species belonging to drosanthe section

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
E Eroğlu Özkan ◽  
N Özsoy ◽  
G Özhan ◽  
A Mat
Keyword(s):  
Antioxidant Activity ◽  
Hypericum Species

Biological activity and phytochemical analysis of extracts obtained from Santolina rosmarinifolia L.

2017 ◽  
Author(s):  
L Félix ◽  
T Coutinho ◽  
A Barejão ◽  
M Taghouti ◽  
AM Silva
Keyword(s):  
Biological Activity ◽  
Phytochemical Analysis

QUALITATIVE AND QUANTITATIVE PHYTOCHEMICAL SCREENING AND IN VITRO ANTIOXIDANT EVALUATION OF PERGULARIA DAEMIA

2018 ◽  
Vol 24 (2) ◽  
Author(s):  
GITA MISHRA ◽  
HEMESHWER KUMAR CHANDRA ◽  
NISHA SAHU ◽  
SATENDRA KUMAR NIRALA ◽  
MONIKA BHADAURIA
Keyword(s):  
Reducing Sugars ◽  
Antioxidant Properties ◽  
Phytochemical Analysis ◽  
Phytochemical Screening ◽  
Qualitative And Quantitative ◽  
The Family ◽  
Ethanolic Extracts ◽  
Antioxidant Evaluation ◽  
In Vitro Antioxidant Activity

Pergularia daemia belongs to the family Asclepiadaceae, known to have anticancer, anti-inflammatory activity. Aim of the present study was to evaluate qualitative and quantitative phytochemical and antioxidant properties of ethanolic extracts of leaf, stem and root parts of P. daemia . Preliminary phytochemical analysis and in vitro antioxidant properties were evaluated by standard methods. The qualitative phytochemical analysis of P. daemia showed presence of flavonoids, tannins, alkaloid, phytosterol, carbohydrate, phenol, saponin, glycosides, terpenoids, steroids proteins and reducing sugars. Quantitative analysis showed polyphenol, flavonoid, flavonone, flavone and flavonol in P. daemia leaves, stem and root in considerable quantity. The in vitro antioxidant activity of P. daemia clearly demonstrated that leaf, stem and root parts have prominent antioxidant properties and was effective in scavenging free radicals.

COMPARATIVE STUDIES OF THE POTENTIATION OF CORTICOTROPHIN ACTIVITY BY SEVERAL INACTIVE DERIVATIVES

1963 ◽  
Vol 42 (2) ◽  
pp. 209-213 ◽  
Author(s):  
Arthur I. Cohen ◽  
Edward H. Frieden
Keyword(s):  
Biological Activity ◽  
Comparative Studies ◽  
Free Amino ◽  
Hormonal Activity ◽  
Amino Groups

ABSTRACT A number of corticotrophin analogues have been prepared, some of which potentiate the biological activity of the untreated hormone in vitro. The free amino groups of corticotrophin appear to be essential not only for hormonal activity, but also for the interaction of the analogues with the tissue corticotrophin inactivating system which is assumed to account for the potentiating effect.

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