Page 93 - IMO-2-3
P. 93

Innovative Medicines & Omics                                             Bioactivities of Commelina diffusa



            3.4. Hypoglycemic activity                         profile at therapeutic doses. Comprehensive toxicological

            The hypoglycemic efficacy of  C. diffusa was assessed by   evaluations, including chronic toxicity and genotoxicity
            measuring blood glucose levels in treated mice following   assessments,  are  necessary  before  clinical  use.  Given  its
            glucose administration. The results are illustrated in Figure 2.  wide geographical distribution, phytochemical richness,
                                                               and diverse pharmacological activities,  C. diffusa is a
              Despite  growing  interest  in natural products for   promising candidate for further investigation in natural
            managing metabolic disorders,  the crude methanol   product drug discovery. With systematic scientific
                                      31
            extract and the various fractions of  C. diffusa did not   validation, C. diffusa could offer sustainable solutions in
            produce a significant reduction in blood glucose levels   healthcare and environmental management. 26,35,36
            in this study. This contrasts with reports of  Commelina
            benghalensis extracts showing significant hypoglycemic   Antimicrobial resistance is  a growing global health
            effects in alloxan-induced diabetic rats.  The discrepancy   concern characterized by the ability of microorganisms,
                                           32
            may be attributed to interspecies variation and differences   such as bacteria, viruses, fungi, and parasites, to resist
            in phytochemical composition between species. Moreover,   the effects of antimicrobial agents. The World Health
            the use of a single dose in non-diabetic (normoglycemic)   Organization has declared antimicrobial resistance as
                                                                                                     37
            animals limits the interpretation of hypoglycemic efficacy.  one of the top ten global public health threats.  The rise
                                                               in resistance is driven by a complex interplay of factors,
            4. Discussion                                      including the misuse and overuse of antibiotics, poor
            Bangladesh is endowed with rich biodiversity, particularly   infection control practices, and inadequate surveillance
            in medicinal plants that have been used traditionally   and regulation. Natural products have historically served
                                                                                            6
            for centuries. According to the Bangladesh National   as a primary source of antibiotics.  Many widely used
            Herbarium, over 5,000 plant species exist in the country, of   antimicrobials, such as penicillin, streptomycin, and
            which around 500 are recognized as medicinal. 33,34  tetracycline, were originally derived from microbial sources.
                                                               The structural complexity and evolutionary refinement
              C. diffusa, commonly known as climbing dayflower or   of these compounds allow them to target bacterial cells
            spreading dayflower, is a herbaceous plant belonging to   effectively, often through unique mechanisms. For example,
            the family Commelinaceae. Morphologically,  C. diffusa   actinomycetes and Bacillus species produce a wide array
            is a prostrate or ascending annual herb characterized   of secondary metabolites, including aminoglycosides,
            by  succulent  stems,  ovate  to  lanceolate  leaves,  and   polyketides, and lipopeptides, which exhibit strong
            distinctive blue flowers borne in spathes.  The plant   antimicrobial activity. 38,39  Curcumin, a polyphenol from
                                                35
            reproduces both sexually (via seeds) and vegetatively   Curcuma longa, also exerts antimicrobial effects and has
            (through rooting at nodes), contributing to its invasive   been shown to disrupt bacterial cell membranes and
            potential.  C. diffusa has a pantropical distribution and   inhibit quorum sensing. Similarly, essential oils (e.g.,
            is especially common in Asia (including India, China,   thymol, carvacrol, eugenol) exhibit bactericidal properties
            Bangladesh, and Southeast Asia), the Caribbean, Africa,
            and South America. Traditional medicine and animal   through membrane disruption and inhibition of bacterial
                                                                      40,41
            studies suggest that C. diffusa has a relatively low toxicity   enzymes.   Importantly, many of these compounds
                                                               synergize with conventional antibiotics, enhancing their
                                                               efficacy and reversing resistance mechanisms.
                                                                 In the present study, the  C. diffusa extracts showed
                                                               potent antimicrobial activity, likely due to the presence
                                                               of bioactive compounds. These results warrant further
                                                               phytochemical investigation, including the isolation
                                                               and characterization of the active compounds, for the
                                                               development of novel antimicrobial agents.  Despite
                                                                                                     42
                                                               encouraging  in vitro and  in vivo findings, the clinical
                                                               development of natural compounds faces several
                                                               hurdles. These include poor solubility, low bioavailability,
                                                               toxicity, and difficulties in standardization and large-
            Figure  2. Plasma glucose level of the mice after administration of   scale production. To ensure effective translation, further
            Commelina diffusa extracts at different time intervals. Data are shown as   research must focus on elucidating mechanisms of action,
            mean±SEM (n = 5 per group).
            Abbreviations: CF: Chloroform fraction; ME: Methanol extract;   optimizing  pharmacokinetics,  and  conducting  rigorous
            PEF: Petroleum ether fraction; SEM: Standard error of the mean.  clinical trials. Interdisciplinary collaborations and


            Volume 2 Issue 3 (2025)                         87                          doi: 10.36922/IMO025270030
   88   89   90   91   92   93   94   95   96   97   98