The potential of plant-based natural compounds in the creation of new molluscicidal and antimicrobial medications has gained attention in recent years. The current study compared the metabolic profiles, antibacterial, and molluscicidal properties of the medicinal plants () and (). In both plants, 118 metabolites were identified using gas chromatography-mass spectrometry. Palmitic acid, stigmasterol, and campesterol were the most prevalent constituents. extract showed stronger antibacterial activity than . against and . Both extracts exhibited molluscicidal activity against with LC values of (135 mg/L) and (223.8 mg/L). Survival rates of snails exposed to sub-lethal concentrations (LC) of and extracts were 5% and 20%, respectively. The hatchability of snail eggs exposed to both extracts has been dramatically reduced. Both extracts significantly decreased the levels of alkaline phosphatase, acid phosphatase, total protein, and albumin in snails, as well as causing DNA damage and resulting in numerous hermaphrodite and digestive gland damages and distortions. Molecular docking showed palmitic acid binding with acid, alkaline, and alanine aminotransferases in treated digestive gland snails. In conclusion, and have antibacterial and molluscicidal properties.
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http://dx.doi.org/10.3390/plants12030477 | DOI Listing |
Molecules
November 2024
Natural Sciences and Science Education, National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore 637616, Singapore.
Marine cyanobacteria represent a promising yet underexplored source of novel natural products with potent biological activities. Historically, the focus has been on isolating cytotoxic compounds from marine cyanobacteria, but a substantial number of these photosynthetic microorganisms also produce diverse specialized molecules with significant anti-infective properties. Given the global pressing need for new anti-infective lead compounds, this review provides a concise yet comprehensive overview of the current knowledge on anti-infective secondary metabolites derived from marine cyanobacteria.
View Article and Find Full Text PDFDrug Des Devel Ther
September 2024
Faculty of Natural Sciences, Juraj Dobrila University of Pula, Pula, 52100, Croatia.
Niclosamide (NIC), an anthelmintic drug, has garnered recent attention for its potential as an antiviral, antibacterial, and chemotherapeutic agent, among other applications. Repurposing NIC presents a current trend, offering significant time and cost savings compared to developing entirely new therapeutic chemical entities. However, its drawback lies in poor solubility, resulting in notably low oral bioavailability.
View Article and Find Full Text PDFChemMedChem
August 2024
Department of Chemistry, University of Manitoba, Winnipeg, MB, Canada.
Multicomponent therapy combining antibiotics with enhancer molecules known as adjuvants is an emerging strategy to combat antimicrobial resistance. Niclosamide is a clinically relevant anthelmintic drug with potential to be repurposed for its inherent antibacterial activity against Gram-positive bacteria and its ability to potentiate the antibacterial activity of colistin against susceptible and resistant Gram-negative bacteria. Herein, sulfonamide analogs of niclosamide were prepared and found to enhance colistin activity against Gram-negative bacteria.
View Article and Find Full Text PDFMar Drugs
September 2023
School of Medicine, Shanghai University, 99 Shangda Road, Bao Shan District, Shanghai 200444, China.
Marine soft corals are prolific sources of various natural products that have served as a wealthy reservoir of diverse chemical scaffolds with potential as new drug leads. The genus contains almost 100 species but only a small proportion of them has been chemically investigated, which calls for more attentions from global researchers. In the current work, 175 secondary metabolites have been discussed, drawing from published data spanning almost five decades, up to July 2023.
View Article and Find Full Text PDFPharm Res
August 2023
Novo Nordisk Foundation Center for Biosustainability, Technical University Denmark, Lyngby, Denmark.
Purpose: Niclosamide is approved as an oral anthelminthic, but its low oral bioavailability hinders its medical use requiring high drug exposure outside the gastrointestinal tract. An optimized solution of niclosamide for nebulization and intranasal administration using the ethanolamine salt has been developed and tested in a Phase 1 trial. In this study we investigate the pulmonary exposure of niclosamide following administration via intravenous injection, oral administration or nebulization.
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