scholarly journals Inhibición del crecimiento de Giardia Lamblia por acción del extracto acuoso y metanólico de semillas de Cucurbita Pepo / Giardia lamblia growth inhibition by action of the aqueous and methanolic extract of cucurbita pepo seed

2015 ◽  
Vol 1 (1) ◽  
pp. 121
Author(s):  
María Porfiria Barrón González ◽  
Ramón Gerardo Rodríguez Garza ◽  
Yadira Quiñones Gutiérrez
Keyword(s):  
Growth Inhibition ◽  
Entamoeba Histolytica ◽  
Giardia Lamblia ◽  
Cucurbita Pepo ◽  
Methanolic Extract ◽  
Taenia Solium

Giardia lamblia es el protozoario parásito causante de la giardiasis, la cual se caracteriza por molestia abdominal, pérdida de peso y desnutrición. La droga de elección para su tratamiento es el metronidazol sin embargo, presenta diversos efectos secundarios adversos en el paciente. Por otra parte, en la herbolaria se conoce a la semilla de Cucurbita pepo por sus propiedades desparasitante, principalmente sobre Entamoeba histolytica y Taenia solium.  Por lo anterior se planteó la hipótesis de que las semillas de C. pepo contienen principios activos capaces de inhibir el crecimiento de G. lamblia bajo condiciones axénicas in vitro. El objetivo de esta investigación fue evaluar la actividad biológica del extracto acuoso y metanólico de las semillas de  C. pepo sobre el crecimiento de G. lamblia.  Tanto el extracto metanólico como el acuoso se identificaron siete grupos funcionales y la actividad antioxidante no fue significativa. En el extracto metanólico se observó mayor efecto giardicida seguido del acuoso, esta diferencia puede deberse a las saponinas que se encuentran sólo en el extracto metanólico. Los resultados sugieren que las semillas contienen principios activos que pueden emplearse para la investigación de nuevos tratamientos para la  giardiasis.

scholarly journals In Vitro Study of Antiamoebic Activity of Methanol Extracts ofArgemone mexicanaon Trophozoites ofEntamoeba histolyticaHM1-IMSS

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Joel H. Elizondo-Luévano ◽  
Rocío Castro-Ríos ◽  
Eduardo Sánchez-García ◽  
Magda E. Hernández-García ◽  
Javier Vargas-Villarreal ◽  
...  
Keyword(s):  
Entamoeba Histolytica ◽  
Methanolic Extract ◽  
Parasitic Infection ◽  
In Vitro Study ◽  
Argemone Mexicana ◽  
Traditional Use ◽  
Antiparasitic Activity ◽  
Antiamoebic Activity ◽  
Amoebicidal Activity

Infections caused by parasites in humans represent one of the main public health concerns. Amoebiasis, a parasitic infection caused byEntamoeba histolytica(E. histolytica), is considered endemic in Mexico, whereArgemone mexicana(A. mexicana) has been used in traditional medicine to treat intestinal parasitic diseases. The objective of this work was to evaluate the potential biological activity ofA. mexicanaonE. histolytica. For this purpose, a methanolic extract was prepared fromA. mexicanaleaves, and a differential fractionation was carried out with solvents of different polarities. The inhibitory capacities of the extract and its fractions were evaluated in vitro using HM1-IMSS, a strain ofEntamoeba histolytica.A. mexicanaextract was found to have a growth-inhibiting activity forE. histolytica, showing IC50 = 78.39 μg/mL. The extract was characterized phytochemically, and the methanolic extract fractions were analyzed by liquid chromatography (HPLC) and mass spectrometry (MS). Berberine and jatrorrhizine were present in the active fractions, and these compounds may be responsible for the antiparasitic activity. The identification of amoebicidal activity ofA. mexicanaonE. histolyticagives support to the traditional use. Further studies with berberine and jatrorrhizine will be carried out to understand the mechanism involved.

scholarly journals In vitro activity of selected Ghanaian medicinal plants against parasites: Giardia lamblia, Entamoeba histolytica and Naegleria fowleri

2017 ◽  
Vol 11 (23) ◽  
pp. 279-283 ◽  
Author(s):  
Kyere-Davies Gertrude ◽  
Agyare Christian ◽  
Duah Boakye Yaw ◽  
Bains Trpta ◽  
M. Suzuki Brian ◽  
...  
Keyword(s):  
Medicinal Plants ◽  
Entamoeba Histolytica ◽  
Giardia Lamblia ◽  
Vitro Activity ◽  
In Vitro Activity ◽  
Naegleria Fowleri ◽  
Nægleria Fowleri

scholarly journals Virtual Screening of FDA-Approved Drugs against Triose Phosphate Isomerase from Entamoeba histolytica and Giardia lamblia Identifies Inhibitors of Their Trophozoite Growth Phase

2021 ◽  
Vol 22 (11) ◽  
pp. 5943
Author(s):  
Alfredo Juárez-Saldivar ◽  
Elizabeth Barbosa-Cabrera ◽  
Edgar E. Lara-Ramírez ◽  
Alma D. Paz-González ◽  
Ana V. Martínez-Vázquez ◽  
...  
Keyword(s):  
Virtual Screening ◽  
Entamoeba Histolytica ◽  
Giardia Lamblia ◽  
Triosephosphate Isomerase ◽  
Glycolytic Enzyme ◽  
Public Health Issue ◽  
Intestinal Protozoan ◽  
Approved Drugs ◽  
Fda Approved Drugs

Infectious diseases caused by intestinal protozoan, such as Entamoeba histolytica (E. histolytica) and Giardia lamblia (G. lamblia) are a worldwide public health issue. They affect more than 70 million people every year. They colonize intestines causing primarily diarrhea; nevertheless, these infections can lead to more serious complications. The treatment of choice, metronidazole, is in doubt due to adverse effects and resistance. Therefore, there is a need for new compounds against these parasites. In this work, a structure-based virtual screening of FDA-approved drugs was performed to identify compounds with antiprotozoal activity. The glycolytic enzyme triosephosphate isomerase, present in both E. histolytica and G. lamblia, was used as the drug target. The compounds with the best average docking score on both structures were selected for the in vitro evaluation. Three compounds, chlorhexidine, tolcapone, and imatinib, were capable of inhibit growth on G. lamblia trophozoites (0.05–4.935 μg/mL), while folic acid showed activity against E. histolytica (0.186 μg/mL) and G. lamblia (5.342 μg/mL).

scholarly journals In-Vitro Effect of Kalanchoe daigremontiana and Its Main Com-ponent, Quercetin against Entamoeba histolytica and Trichomo-nas vaginalis

2021 ◽  
Author(s):  
Joel H. Elizondo-Luévano ◽  
Oscar A. Pérez-Narváez ◽  
Eduardo Sánchez-García ◽  
Rocío Castro-Ríos ◽  
Magda E. Hernández-García ◽  
...  
Keyword(s):  
Entamoeba Histolytica ◽  
Trichomonas Vaginalis ◽  
Methanolic Extract ◽  
Parasitic Infections ◽  
Trophozoite Stage ◽  
Main Component ◽  
Vitro Effect ◽  
Kalanchoë Daigremontiana ◽  
Kalanchoe Daigremontiana

Background: Parasitic infections represent one of the main public health problems in humans according to the WHO. Therefore, the need has arisen to find new treatments that can be used as an alternative cure to parasitosis. We aimed to investigate the in-vitro effects of the methanolic extract of Kalanchoe daigremontiana as well as its main component, quercetin against Entamoeba histolytica and Trichomonas vaginalis. Methods: For this purpose, the in-vitro activity of the methanol extract of K. daigremontiana also its main component, quercetin, against trophozoites of E. histolytica and T. vaginalis was evaluated, using the microassay technique. Furthermore, the antioxidant activity was determined. Finally, the cytotoxic and cytoprotective capacity was determined using the hemolysis technique. Results: The IC50 indicated that quercetin significantly (P < 0.05) inhibited the growth rate of the trophozoite stage of E. histolytica and T. vaginalis in comparison to the methanolic extract of K. daigremontiana (KalL). Also, quercetin significantly (P < 0.05) was a better antioxidant as compared with the positive control. In the evaluation of cytotoxicity effects, it could be observed that KalL as compared with quercetin exhibited more cytotoxicity against human erythrocytes. Quercetin significantly (P < 0.001) exhibited better cytoprotective activity compared to KalL. Conclusion: Both K. daigremontiana methanolic extract and quercetin alone demonstrated high antiparasitic activity against E. histolytica and T. vaginalis. However, the in-vivo efficacy of K. daigremontiana and quercetin also requires to be evaluated using an animal model.

scholarly journals In vitro activity of some natural honeys against Entamoeba histolytica and Giardia lamblia trophozoites

2019 ◽  
Vol 26 (2) ◽  
pp. 238-243 ◽  
Author(s):  
Seif Eldin A. Mohammed ◽  
Ahmed S. Kabbashi ◽  
Waleed S. Koko ◽  
Mohammad Javed Ansari ◽  
Nuru Adgaba ◽  
...  
Keyword(s):  
Entamoeba Histolytica ◽  
Giardia Lamblia ◽  
Vitro Activity ◽  
In Vitro Activity
Sign in / Sign up

Export Citation Format

Share Document