Improvement of the liver pathology by the aqueous extract and the n-butanol fraction of Sida pilosa Retz in Schistosoma mansoni-infected mice

2016 ◽  
Vol 180 ◽  
pp. 114-123 ◽  
Author(s):  
Hermine Boukeng Jatsa ◽  
Remo Castro Russo ◽  
Cintia Aparecida de Jesus Pereira ◽  
Edenil Costa Aguilar ◽  
Cristiana Couto Garcia ◽  
...  
2019 ◽  
Vol Volume 12 ◽  
pp. 709-719 ◽  
Author(s):  
Asmaa M El-kady ◽  
Alzahraa Abdelraouf Ahmad ◽  
Tasneem M Hassan ◽  
Heba E M El-Deek ◽  
Samer S Fouad ◽  
...  

Author(s):  
Hermine Boukeng Jatsa ◽  
Christian Mérimé Kenfack ◽  
Distele Nadège Simo ◽  
Nestor Gipwe Feussom ◽  
Emilienne Tienga Nkondo ◽  
...  

Author(s):  
Mérimé Christian Kenfack ◽  
Hermine Boukeng Jatsa ◽  
Nestor Gipwe Feussom ◽  
Emilienne Tienga Nkondo ◽  
Ulrich Membe Femoe ◽  
...  

Aims: Treatment against schistosomiasis relies on praziquantel. Its treatment failure and the possible development of resistant schistosomes strains have been reported in the literature. Clerodendrum umbellatum leaves are used in Africa for the treatment of intestinal helminthiasis. The aim of this study was to evaluate the in vitro activity of C. umbellatum leaves aqueous extract and derived fractions on Schistosoma mansoni adult worms. Methodology: Five male and five female Schistosoma mansoni adult worms were incubated in each well for 48 h in a GMEM culture medium with C. umbellatum aqueous extract (125 to 4000 µg/mL) or its n-hexane, ethyl acetate and methanol fractions or the aqueous residue (62.5 to 2000 µg/mL). The main parameters assessed were the worm’s mortality and the reduction of motor activity. Phytochemical screening of all our tested substances was also performed. The cytotoxicity assay using mouse melanoma liver cells line was performed on the aqueous extract and on the most active fraction. Results: Our study shown that C. umbellatum leaves aqueous extract and its derived fractions promoted worm mortality. The aqueous extract disclosed a LC50 of 805.21 µg/mL while the LC50 of the methanol fraction was 343.10 µg/mL. With this lowest LC50, the methanol fraction from C. umbellatum aqueous extract was therefore the most active. Moreover, it showed low level of toxicity on hepatocytes. Incubation of worms with C. umbellatum aqueous extract and fractions also resulted in a significant reduction of the motor activity of survival worms with a 39.54 to 100% reduction after 48h. The phytochemical screening of C. umbellatum aqueous extract and fractions revealed the presence of alkaloids, phenols, flavonoids, tannins, saponins and terpenoids. Conclusion: The present study demonstrated the in vitro activity of C. umbellatum aqueous extract and derived fractions on S. mansoni adult worms and could then justify its empirical use to combat schistosomiasis.


2015 ◽  
Vol 06 (08) ◽  
pp. 380-390 ◽  
Author(s):  
Hermine Boukeng Jatsa ◽  
Cintia Aparecida de Jesus Pereira ◽  
Ana Bárbara Dias Pereira ◽  
Deborah Aparecida Negrão-Corrêa ◽  
Fernão Castro Braga ◽  
...  

2019 ◽  
Vol Volume 12 ◽  
pp. 2003-2004
Author(s):  
Asmaa M El-kady ◽  
Alzahraa Ahmed ◽  
Tasneem Hassan ◽  
Heba El-Deek ◽  
Samer Fouad ◽  
...  

Acta Tropica ◽  
2008 ◽  
Vol 106 (3) ◽  
pp. 162-167 ◽  
Author(s):  
Teresa C.M. Garcia ◽  
Cristina T. Fonseca ◽  
Lucila G.G. Pacifico ◽  
Fernanda do Valle Durães ◽  
Fábio Antônio Vitarelli Marinho ◽  
...  

Vaccine ◽  
2009 ◽  
Vol 27 (31) ◽  
pp. 4127-4135 ◽  
Author(s):  
Debora O. Lopes ◽  
Leonardo F. Paiva ◽  
Mauricio A. Martins ◽  
Fernanda C. Cardoso ◽  
Matheus A. Rajão ◽  
...  

2021 ◽  
Vol 158 ◽  
pp. 16282-16288
Author(s):  
Tchogou AP ◽  
Lokonon JE ◽  
Agbogba F ◽  
Medoatinsa SE ◽  
Abissi GY ◽  
...  

Objective: Cocos nucifera (coconut tree) is a tropical plant whose roots were used in Benin to treat anaemia. These roots contain anthocyanins, which are isolated by butanol. This work aimed to test the safety of the butanolic fraction of this root extract. Methodology and results: Acute oral toxicity (AOT) and subchronic (SCT) tests were performed by gavage Wistar rats with the fraction of the extract at a single dose of 2000 mg / Kg of weight for the AOT and of 200 mg / Kg / Day for 28 days for SCT. At D0 and on D14 for the AOT and on D28 for the SCT, the rats were weighed and sampled for assay of transaminases AST and ALT, uraemia, creatinine, blood leukocyte counts and liver, kidneys and spleen histology. These analyses did not show any abnormalities. The butanol fraction of the aqueous extract of Cocos nucifera roots did not show acute or sub-chronic oral toxicity. The physical balance assessed by the behaviour and weight of rats was normal. Liver function tests performed by transaminases AST and ALT improved. Renal balance conducted by uraemia and creatinine was normal. The immune status determined by the number of blood leukocytes was normal. These functional observations were confirmed by the histology of the liver, kidneys and spleen, which did not show any morphological atypia of these organs. Conclusion and application of results: The lack of toxicity at the acute or subchronic stage may be related to anthocyanins contained therein and some of which were known to be non-toxic. This result opened up great prospects for testing various biological properties, in particular the hematopoietic activity of this butanolic fraction of Cocos nucifera root extract which will be used as an improved traditional medicine. Key words: Cocos nucifera, butanol, safety. Tchogou et al., J. Appl. Biosci. 2021 Safety of the butanol fraction of Cocos nucifera roots aqueous extract in vivo. 16283 RÉSUMÉ Objectif : Cocos nucifera est une plante tropicale dont les racines sont utilisées au Bénin pour soigner l’anémie. Ces racines contiennent les anthocyanes qui sont isolés par le butanol. Ce travail se propose de tester l’innocuité de la fraction butanolique de cet extrait de racines. Méthodologie et résultats : Les Tests de toxicité orale aigüe (TOA) et subchronique (TSC) ont été effectués par gavage de rats Wistar avec la fraction d’extrait à la dose unique de 2000 mg/Kg de poids pour la TOA et de 200 mg/Kg/Jour pendant 28 jours pour la TSC. A J0, puis à J14 pour le TAO et à J28 pour le TSC, les rats ont été pesés puis prélevés pour le dosage des transaminases ASAT et ALAT, l’urémie, la créatininémie, la numération des leucocytes sanguins et l’histologie du foie, des reins et de la rate. Ces analyses n’ont pas montré d’anomalies. La fraction butanolique de l’extrait aqueux de racines de Cocos nucifera n’a pas révélé de toxicité orale aiguë ou sub-chronique. Le bilan physique évalué par le comportement et le poids des rats est normal. Le bilan hépatique effectué par les transaminases ASAT et ALAT est amélioré. Le bilan rénal réalisé par l’urémie et la créatininémie est normal. Le bilan immunitaire déterminé par le nombre de leucocytes sanguins est normal. Ces observations fonctionnelles sont confirmées par l’histologie du foie, des reins et de la rate qui n’a pas montré d’atypies morphologiques de ces organes. Conclusion et application des résultats :L’absence de toxicité orale à l’état aigu ou subchronique serait liée aux anthocyanes qui y sont contenus et dont certains sont connus comme étant non toxiques. Ce résultat ouvre de belles perspectives pour tester diverses propriétés biologiques, notamment l’activité hématopoïétique de cette fraction butanolique de l’extrait de racines de Cocos nucifera qui sera utilisé comme medicament tradiotionnel amélioré. Mots clés : Cocos nucifera, butanol, innocuité.


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