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Pomegranate (Punica granatum) Peel Inhibits the In Vitro and In Vivo Growth of Piroplasm Parasites.

ABSTRACT: Pomegranate (Punica granatum) peel has seen a rapid surge in attention as a medical and nutritional product over the last decade. The impact of pomegranate peel methanolic extract monotherapy and combination therapy on the in vitro growth of Babesia (B.) bovis, B. bigemina, B. divergens, B. caballi, and Theileria (T.) equi, as well as B. microti in mice, was investigated in this work. Fluorescence-based SYBR green I assay was used for evaluating the inhibitory antibabesial efficacy of pomegranate (Punica granatum) peel against the growth of several piroplasm parasites in vitro and in vivo. Celltac α MEK-6450 computerized haematology analyzer was used for monitoring the haematological parameters of treated mice every 4 days. Pomegranate peel inhibited the in vitro growth of B. bovis, B. bigemina, B. divergens, T. equi, and B. caballi in a dose-dependent manner, with IC₅₀ values of 154.45 ± 23.11, 40.90 ± 9.35, 72.71 ± 14.77, 100 ± 16.20, and 77.27 ± 16.94 μg/ml, respectively. On a B. bovis culture, the in vitro inhibitory effect of pomegranate peel was amplified when it was combined with diminazene aceturate (DA). Combination therapy of pomegranate peel and a low dose of DA (15 mg kg^-1) inhibited B. microti growth significantly (P < 0.05) higher than the treatment with the full dose of DA (25 mg kg^-1) in B. microti-infected mice. These findings suggest that pomegranate peel might be a potential medicinal plant for babesiosis treatment, especially when combined with a low dosage of DA.

SUBMITTER: Eltaysh R

PROVIDER: S-EPMC9237696 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:Background: MicroRNAs (miRNAs), a class of small non-coding endogenous RNAs that regulate gene expression posttranscriptionally, play multiple key roles in plant growth and development and the stress response. Knowledge of and the roles of miRNAs in pomegranate fruit development have not been explored. Results: Pomegranate, which accumulates a large amount of anthocyanins in skin and arils, is valuable to human health, mainly because of antioxidant properties. In this study, we developed a small RNA library from pooled RNA samples from young seedling to matured fruits and identified both conserved and pomegranate-specific miRNA from 29,948,480 high-quality reads. For the pool of 15- to 30-nt small RNAs, ~50% were 24 nt. The miR157 family was the most abundant, followed by miR156, miR160, and miR159, with many variants within each family. The base bias at the first position from the 5’ end has a strong preference for U for most 18- to 26-nt miRNAs but a preference for A for 18-nt miRNAs. In addition, for all 24-nt miRNAs, the nucleotide U is preferred (97%) in the first position. RT-qPCR was used to validate the expression of the predominant miRNA families in leaves, male and female flowers, and multiple fruit developmental stages; miR156, miR156-v1, miR159, miR159-v1, and miR319 were upregulated during the later stages of fruit development. Gene ontology and KEGG pathway analyses revealed predominant metabolic processes and catalytic activities, important for fruit development. In addition, KEGG pathway analyses revealed the involvement of miRNAs in ascorbate and linolenic acid, starch and sucrose metabolism; RNA transport; plant hormone signaling pathways; and circadian clock. Conclusion: Pomegranate largely contains anthocyanin, flavonoids, and antioxidants, which play critical roles in treating cancer, Alzheimer disease, and preventing heart attacks. Our first and preliminary report of novel miRNAs provides information on the biochemical compounds of pomegranate for future research. The functions of the targets of these novel miRNAs need further investigation.

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Pomegranate (Punica granatum) Peel Inhibits the In Vitro and In Vivo Growth of Piroplasm Parasites.

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