Plumeria alba (P. alba) is a small laticiferous tree with promising medicinal properties. Green synthesis of nanoparticles is eco-friendly, cost-effective, and non-hazardous compared to chemical and physical synthesis methods. Current research aiming to synthesize silver nanoparticles (AgNPs) from the leaf extract of P. alba (P- AgNPs) has described its physiochemical and pharmacological properties in recognition of its therapeutic potential as an anticancer and antimicrobial agent. These biogenic synthesized P-AgNPs were physiochemically characterized by ultraviolet-visible spectroscopy, Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), transmission electron microscope (TEM), atomic force microscopy (AFM), X-ray diffractometry (XRD), and zeta potential analyses. Antimicrobial activity was investigated against Escherichia coli, Pseudomonas aeruginosa, Enterobacter aerogenes, Enterococcus faecalis, Bacillus subtilis, Streptococcus pneumoniae, Candida albicans, and Candida glabrata. Anticancer activity against glioblasoma U118 MG cancer lines was investigated using an MTT assay, and apoptosis activity was determined by flow cytometry. UV–visible spectroscopic analysis portrayed surface plasmon resonance at 403 nm of synthesized P-AgNPs, and FTIR suggested the presence of amines, alkanes, and phenol molecules that could be involved in reduction and capping processes during AgNPs formation. Synthesized particles were spherical in shape and poly-dispersed with an average particle size of 26.43 nm and a poly-dispersity index (PDI) of 0.25 with a zeta potential value of −24.6 mV, ensuring their stability. The lattice plane values confirm the crystalline nature as identified by XRD. These P-AgNPs exhibited potential antimicrobial activity against selected human pathogenic microbes. Additionally, the in vitro MTT assay results show its effective anticancer activity against the glioma U118 MG cancer cell line with an IC50 value of 9.77 µg/mL AgNPs by initiating apoptosis as identified by a staining study with flow cytometric annexin V–fluorescein isothiocyanate (FITC) and propidium iodide (PI). Thus, P. alba AgNPs can be recommended for further pharmacological and other biological research. To conclude, the current investigation developed an eco-friendly AgNPs synthesis using P. alba leaf extract with potential cytotoxic and antibacterial capacity, which can therefore be recommended as a new strategy to treat different human diseases.
In India, the under-reporting of adverse drug reactions (ADRs) by health professionals is recognized as one of the leading reasons of poor ADR signal detection. The knowledge of ADRs and positive attitude of health-care professionals toward ADRs reporting is vital for decreasing the irrational use of an inappropriate pharmacy. The present study was directed to assess the knowledge, attitude, and practice (KAP) of pharmacovigilance (PV) among the physicians, nurses, and pharmacists of a teaching tertiary care hospital of India. A structured questionnaire was designed using previous studies and standardized. Questions were categorized into three groups: Group 1 tested the knowledge (K1–K8), Group 2 tested attitude (A1–A6), and Group 3 tested the level of practice of PV (P1–P5) of the participant. Such 250 questionnaires were distributed to different health-care professionals of VIMS, Ballari. The participants were graded in three categories as poor, unsatisfactory, and satisfactory depending on the mean score. The data were interpreted by calculating the frequencies, one-way ANOVA and Scheffe's test. Furthermore, factors that discourage them from taking part in the PV program were recorded. A total of 182 questionnaires were statistically analyzed. It was found that KAP of PV among doctors, nurses, and pharmacists was unsatisfactory. Our study showed that knowledge, attitude, and level of practice of PV among doctors, nurses, and pharmacists stand inadequate. Educational interventions periodically can improve these parameters of PV.
BACKGROUND: Cancer is a major burden and threat to global society. A wide range of chemotherapeutic agents is extensively used to treat cancer at different stages. Inappropriate drug use may also lead to the raised cost of medical care, adverse drug effects, and patient mortality. Hence, in recent years, drug utilisation studies have become a potential tool to be used in the evaluation of different health care systems including cancer. AIMS: The objectives of the study were to identify the various types of cancer, the commonly prescribed drugs, rational use of anticancer drugs, and analyse the prescribing indicators in a tertiary care government hospital of India. MATERIAL AND METHODS: Newly diagnosed cancer and/or known case of carcinoma of either sex which required treatment/on treatment with chemotherapy aged > 18 yrs admitted in Radiotherapy Department from April 2016 to September 2016 were included in the study and analysed for prescribing indicators. RESULTS: The head & neck cancers were the prevalent cancers observed with more preponderance among males. Most of the patients were prescribed with a single anticancer drug. Cisplatin was the most commonly used cytotoxic drug followed by carboplatin, and antimetabolites. The most commonly used adjuvant drugs in our study were anti-emetics and anti-peptic ulcer drugs. Over 82% of anticancer agents were taken from the essential drug list and were prescribed in generic names, indicating rational use. CONCLUSION: Over 82% of anticancer agents were taken from the essential drug list and were prescribed in generic names, indicating rational use.
Biosynthesis of silver nanoparticles (AgNPs) using the green matrix is an emerging trend and is considered green nanotechnology because it involves a simple, low-cost, and environmentally friendly process. The present research aimed to synthesize silver nanoparticles from a Leonotis nepetifolia (L.) R.Br. flower bud aqueous extract, characterize these nanoparticles, and perform in vitro determination of their biological applications. UV-Vis spectra were used to study the characterization of biosynthesized L. nepetifolia-flower-bud-mediated AgNPs (LnFb-AgNPs); an SPR absorption maximum at 418 nm confirmed the formation of LnFb-AgNPs. The presumed phytoconstituents subjected to reduction in the silver ions were revealed by FTIR analysis. XRD, TEM, EDS, TGA, and zeta potential with DLS analysis revealed the crystalline nature, particle size, elemental details, surface charge, thermal stability, and spherical shape, with an average size of 24.50 nm. In addition, the LnFb-AgNPs were also tested for antimicrobial activity and exhibited a moderate zone of inhibition against the selected pathogens. Concentration-dependent antioxidant activity was observed in the DPPH assay. Further, the cytotoxicity increased proportionate to the increasing concentration of the biosynthesized LnFb-AgNPs with a maximum effect at 200 μg/mL by showing the inhibition cell viability percentages and an IC50 of 35.84 μg/mL. Subsequently, the apoptotic/necrotic potential was determined using Annexin V/Propidium Iodide staining by the flow cytometry method. Significant early and late apoptosis cell populations were observed in response to the pancreatic ductal adenocarcinoma (PANC-1) cell line, as demonstrated by the obtained results. In conclusion, the study’s findings suggest that the LnFb-AgNPs could serve as remedial agents in a wide range of biomedical applications.
Background and Objectives: Saussurea lappa (S. lappa) is an important species of the Asteraceae family with several purposes in traditional medicine. This study intended to explore the cytotoxic effect of S. lappa on HepG2 cancer cell proliferation. Materials and Methods: The effects of an S. lappa n-butanol extract on the induction of apoptosis were investigated by flow cytometry and mitochondrial cytochrome C-releasing apoptosis assay. Additionally, real-time PCR was employed to confirm apoptosis initiation. Further, qualitative estimation of the active constituent of S. lappa was done by gas chromatography–mass spectroscopy (GC–MS). Results: The cell viability study revealed that the n-butanol extract of S. lappa demonstrated potent cytotoxicity against HepG2 cancer cells, with an IC50 value of 56.76 μg/mL. Cell morphology with dual staining of acridine orange (AO)-ethidium bromide (EB) showed an increase in orange/red nuclei due to cell death by S. lappa n-butanol extract compared to control cells. Apoptosis, as the mode of cell death, was also confirmed by the higher release of cytochrome C from mitochondria, the increased expression of caspase-3 and bax, along with down regulation of Bcl-2. Conclusion: These findings conclude that S. lappa is a cause of hepatic cancer cell death through apoptosis and a potential natural source suggesting furthermore investigation of its active compounds that are responsible for these observed activities.
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