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1.
Nat Prod Res ; : 1-6, 2024 Apr 23.
Article in English | MEDLINE | ID: mdl-38652839

ABSTRACT

This study was aimed at investigating the ability of extract of Annona muricata (AM) flower-petals in ameliorating the toxic effects of acetaminophen on the kidneys of albino rats. The biochemical results showed a marked increase in AM 200 mg (32.84 ± 0.14) and AM 400 mg (32.64 ± 0.78). Increase levels of total protein in AM 200 mg (77.00 ± 5.65) displays nephroprotective potential of the flower extract. Reduction of renal activities of serum urea in AM 400 mg group (6.41 ± 0.22) indicates its protective potency against acetaminophen induced kidney damage. Increased activities of SOD levels at 200 mg (4.97 ± 0.05) and CAT levels at 200 mg (23.39 ± 1.13). This study showed that A. muricata has good prospects of being a nephroprotective drug candidate.

2.
Article in English | MEDLINE | ID: mdl-31558912

ABSTRACT

Plants are reservoir for potentially useful bioactive compounds, and owing to the rising occurrences of drug resistance to malaria parasites, there is a need to discover and develop new phytochemicals in plant that can be used as antimalarial agents. In this study, we gave a detailed description of the phytochemicals present in both ethyl acetate and methanolic extracts of Callistemon citrinus (C. citrinus) using Gas Chromatography-Mass Spectrometry (GC-MS) analysis; both extracts were also evaluated for their in vitro antimalarial, antitrypanosomal, and cytotoxicity activities against Trypanosoma brucei brucei (T. b brucei) parasites, Plasmodium falciparum (P. falciparum) malaria parasites 3D7 strain, and human cervix adenocarcinoma cells (HeLa cells); in addition, the antimicrobial and antioxidant efficacies were determined using standard methods. Both extracts were characterized by a high amount of fatty acids (52.88 and 62.48%). The ethyl acetate extract exhibited a greater activity with minimum inhibitory concentration (MIC) values ranging from 0.025 to 0.10 mg/mL while the methanol extract ranged from 0.025 to 0.15 mg/mL. Both extracts were bactericidal to Escherichia coli ATCC 35150 (E. coli) and Pseudomonas aeruginosa ACC (P. aeruginosa). Qualitative and quantitative phytochemical screenings conducted for both extracts revealed the presence of alkaloids, glycosides, saponins, steroids, and triterpenoids, fat and oils, flavonoids, phenols, and tannins in varying amounts. Both crude extracts exhibited antitrypanosomal potentials with an IC50 of 6.6/9.7 µg/mL and antiplasmodial activities with an IC50 of 8.4/13.0 µg/mL. Conclusion from this study indicates that apart from the folkloric uses of this plant in traditional settings, the extracts possess a broad spectrum of antimicrobial, antitrypanosomal, and antimalarial activities and some pharmaceutically essential bioactive components with remarkable antioxidant capacities that may be used in the synthesis of novel drugs for the management of different varieties of ailments.

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