Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 153
Filter
Add more filters










Publication year range
2.
Heliyon ; 10(14): e34769, 2024 Jul 30.
Article in English | MEDLINE | ID: mdl-39130447

ABSTRACT

Background: Streptococcus pyogenes is one of the major public health concerns causing human infections ranging from skin and throat infections to acute rheumatic fever and post streptococcal glomerulonephritis. Moreover, nowadays drug-resistant strains of S. pyogenes are emerging and can be transmitted through apparently healthy carriers to susceptible individuals. Objective: To assess the prevalence, antimicrobial susceptibility pattern and associated factors S. pyogenes among apparently healthy school children in Mekelle city primary schools, Northern Ethiopia. Methods: A cross-sectional study was conducted among 504 apparently healthy school children from February to May 2018. We used structured questionnaire to collect socio-demographic data. Throat specimens were collected using sterile cotton Swab and transported for culture, antimicrobial susceptibility and identification of S. pyogenes according to standard operating procedures. Data were analyzed using Stata 13 for descriptive statistics, bivariate and multivariate logistic regression. P-value <0.05 was declared statistically significance. Results: The mean age of the study participants was 11.5 years of which 55 % of them were females. The overall prevalence of S. pyogenes was 8.3 %. Being female, having low monthly income, weak personal hygiene, poor hand washing habit and crowded living style were significantly associated with the occurrence of S. pyogenes. The isolates of S. pyogenes showed resistance to Penicillin (69.1 %), Amoxicillin-Clavulanic acid (62 %), Ampicillin (54.6 %), Ceftriaxone (47.6 %), Tetracycline (14.4 %), Cefoxitin (7.2 %). About 57.15 % isolates were multidrug-resistant. Conclusions: This study revealed that some isolates of S. pyogenes among the apparently healthy school children were resistant to commonly prescribed antibiotic agents and associated with hygienic conditions and living style. Therefore, it is recommended to practice antimicrobial susceptibility test to maintain rational antibiotic use and improve hygienic and hand washing practices to decrease the likelihood of carriage rate.

3.
Int J Med Sci ; 21(10): 1915-1928, 2024.
Article in English | MEDLINE | ID: mdl-39113883

ABSTRACT

Introduction: Lung cancer, characterized by uncontrolled cellular proliferation within the lung tissues, is the predominant cause of cancer-related fatalities worldwide. The traditional medicinal herb Piper longum has emerged as a significant contender in oncological research because of its documented anticancer attributes, suggesting its potential for novel therapeutic development. Methods: This study adopted network pharmacology and omics methodology to elucidate the anti-lung cancer potential of P. longum by identifying its bioactive constituents and their corresponding molecular targets. Results: Through a comprehensive literature review and the Integrated Medicinal Plant Phytochemistry and Therapeutics database (IMPPAT), we identified 33 bioactive molecules from P. longum. Subsequent analyses employing tools such as SwissTargetPrediction, SuperPred, and DIGEP-Pred facilitated the isolation of 676 potential targets, among which 72 intersected with 666 lung cancer-associated genetic markers identified through databases including the Therapeutic Target Database (TTD), Online Mendelian Inheritance in Man (OMIM), and GeneCards. Further validation through protein-protein interaction (PPI) networks, gene ontology, pathway analyses, boxplots, and overall survival metrics underscored the therapeutic potential of compounds such as 7-epi-eudesm-4(15)-ene-1ß, demethoxypiplartine, methyl 3,4,5-trimethoxycinnamate, 6-alpha-diol, and aristolodione. Notably, our findings reaffirm the relevance of lung cancer genes, such as CTNNB1, STAT3, HIF1A, HSP90AA1, and ERBB2, integral to various cellular processes and pivotal in cancer genesis and advancement. Molecular docking assessments revealed pronounced affinity between 6-alpha-diol and HIF1A, underscoring their potential as therapeutic agents for lung cancer. Conclusion: This study not only highlights the bioactive compounds of P. longum but also reinforces the molecular underpinnings of its anticancer mechanism, paving the way for future lung cancer therapeutics.


Subject(s)
Lung Neoplasms , Molecular Docking Simulation , Network Pharmacology , Piper , Humans , Lung Neoplasms/drug therapy , Lung Neoplasms/pathology , Piper/chemistry , Antineoplastic Agents, Phytogenic/pharmacology , Antineoplastic Agents, Phytogenic/therapeutic use , Antineoplastic Agents, Phytogenic/chemistry , Protein Interaction Maps/drug effects , Plant Extracts/pharmacology , Plant Extracts/therapeutic use , Plant Extracts/chemistry , Phytochemicals/pharmacology , Phytochemicals/therapeutic use , Phytochemicals/chemistry , Plants, Medicinal/chemistry
4.
5.
Curr Pharm Des ; 2024 Aug 13.
Article in English | MEDLINE | ID: mdl-39143880

ABSTRACT

Post-transcriptional modifications (PTMs) are pivotal in the regulation of gene expression, and pseudouridylation is emerging as a critical player. This modification, facilitated by enzymes such as NOB1 (PNO1), is integral to ribosome biogenesis. PNO1, in collaboration with the NIN1/RPN12 binding protein 1 homolog (NOB1), is vital for the maturation of ribosomes, transitioning 20S pre-rRNA into functional 18S rRNA. Recent studies have highlighted PNO1's potential involvement in cancer progression; however, its underlying mechanisms remain unclear. Relentless growth characterizing cancer underscores the burgeoning significance of epitranscriptomic modifications, including pseudouridylation, in oncogenesis. Given PNO1's emerging role, it is imperative to delineate its contribution to cancer development to identify novel therapeutic interventions. This review summarizes the current literature regarding the role of PNO1 in cancer progression and its molecular underpinnings in oncogenesis. Overexpression of PNO1 was associated with unfavorable prognosis and increased tumor malignancy. At the molecular level, PNO1 facilitates cancer progression by modulating mRNA stability, alternative splicing, and translation efficiency. Its role in pseudouridylation of oncogenic and tumor-suppressor transcripts further underscores its significance in cancer biology. Although disruption of ribosome biogenesis is known to precipitate oncogenesis, the precise mechanisms by which these alterations contribute to cancer remain unclear. This review elucidates the intricate process of ribosomal small subunit maturation, highlighting the roles of crucial ribosomal proteins (RPs) and RNA-binding proteins (RBPs) as well as the positioning and function of NOB1 and PNO1 within the 40S subunit. The involvement of these components in the maturation of the small subunit (SSU) and their significance in the context of cancer therapeutics has been thoroughly explored. PNO1's burgeoning significance in oncology makes it a potential target for cancer therapies. Strategies aimed at modulating PNO1-mediated pseudouridylation may provide new avenues for cancer treatment. However, further research is essential to unravel the complete spectrum of PNO1 mechanisms in cancer and harness this knowledge for the development of targeted and more efficacious anticancer therapies.

7.
Front Pharmacol ; 15: 1410942, 2024.
Article in English | MEDLINE | ID: mdl-39035991

ABSTRACT

The application of network pharmacology (NP) has advanced our understanding of the complex molecular mechanisms underlying diseases, including neck, head, and oral cancers, as well as thyroid carcinoma. This review aimed to explore the therapeutic potential of natural network pharmacology using compounds and traditional Chinese medicines for combating these malignancies. NP serves as a pivotal tool that provides a comprehensive view of the interactions among compounds, genes, and diseases, thereby contributing to the advancement of disease treatment and management. In parallel, this review discusses the significance of publicly accessible databases in the identification of oral, head, and neck cancer-specific genes. These databases, including those for head and neck oral cancer, head and neck cancer, oral cancer, and genomic variants of oral cancer, offer valuable insights into the genes, miRNAs, drugs, and genetic variations associated with these cancers. They serve as indispensable resources for researchers, clinicians, and drug developers, contributing to the pursuit of precision medicine and improved treatment of these challenging malignancies. In summary, advancements in NP could improve the globalization and modernization of traditional medicines and prognostic targets as well as aid in the development of innovative drugs. Furthermore, this review will be an eye-opener for researchers working on drug development from traditional medicines by applying NP approaches.

8.
Technol Health Care ; 2024 Jul 04.
Article in English | MEDLINE | ID: mdl-39031400

ABSTRACT

BACKGROUND: Ficus benghalensis has been used by local health care practitioners to treat pain, inflammation, rheumatism, and other health issues. OBJECTIVE: In this study, the crude extract and diverse fractions, along with the isolated compound of F. benghalensis were examined for their roles as muscle relaxants, analgesics, and sedatives. METHODS: The extract and isolated compound 1 were screened for muscle-relaxant, analgesic, and sedative actions. The acetic acid-mediated writhing model was utilized for analgesic assessment, the muscle relaxant potential was quantified through traction and inclined plan tests, and the open field test was applied for sedative effects. RESULTS: The extract/fractions (25, 50, and 100 mg/kg) and isolated compounds (2.5, 5, 10, and 20 mg/kg) were tested at various doses. A profound (p< 0.001) reduce in the acetic acid-mediated writhing model was observed against carpachromene (64.44%), followed by ethyl acetate (60.67%) and methanol (58.42%) fractions. A marked (p< 0.001) muscle relaxant activity was noticed against the isolated compound (71.09%), followed by ethyl acetate (66.98%) and methanol (67.10%) fractions. Regarding the sedative effect, a significant action was noted against the isolated compound (71.09%), followed by ethyl acetate (66.98%) and methanol (67.10%) fractions. Furthermore, the binding modes of the isolated compounds were explored using molecular docking. The molecular docking study revealed that the isolated compound possessed good binding affinity for COX2 and GABA. Our isolated compound may possess inhibitory activity against COX2 and GABA receptors. CONCLUSION: The extract and isolated compounds of Ficus benghalensis can be used as analgesics, muscle relaxants, and sedatives. However, detailed molecular and functional analyses are essential to ascertain their function as muscle relaxants, analgesics, and sedatives.

9.
Molecules ; 29(13)2024 Jun 28.
Article in English | MEDLINE | ID: mdl-38999050

ABSTRACT

Recently, nanoparticles have received considerable attention owing to their efficiency in overcoming the limitations of traditional chemotherapeutic drugs. In our study, we synthesized a vanillic acid nanocomposite using both chitosan and silver nanoparticles, tested its efficacy against lung cancer cells, and analyzed its antimicrobial effects. We used several characterization techniques such as ultraviolet-visible spectroscopy (UV-Vis), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDAX), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC) to determine the stability, morphological characteristics, and properties of the biosynthesized vanillic acid nanocomposites. Furthermore, the vanillic acid nanocomposites were tested for their antimicrobial effects against Escherichia coli and Staphylococcus aureus, and Candida albicans. The data showed that the nanocomposite effectively inhibited microbes, but its efficacy was less than that of the individual silver and chitosan nanoparticles. Moreover, the vanillic acid nanocomposite exhibited anticancer effects by increasing the expression of pro-apoptotic proteins (BAX, Casp3, Casp7, cyt C, and p53) and decreasing the gene expression of Bcl-2. Overall, vanillic acid nanocomposites possess promising potential against microbes, exhibit anticancer effects, and can be effectively used for treating diseases such as cancers and infectious diseases.


Subject(s)
Anti-Infective Agents , Antineoplastic Agents , Nanocomposites , Vanillic Acid , Vanillic Acid/chemistry , Vanillic Acid/pharmacology , Nanocomposites/chemistry , Humans , Antineoplastic Agents/pharmacology , Antineoplastic Agents/chemistry , Antineoplastic Agents/chemical synthesis , Anti-Infective Agents/pharmacology , Anti-Infective Agents/chemistry , Anti-Infective Agents/chemical synthesis , Silver/chemistry , Silver/pharmacology , Chitosan/chemistry , Chitosan/pharmacology , Microbial Sensitivity Tests , Staphylococcus aureus/drug effects , Candida albicans/drug effects , Escherichia coli/drug effects , Metal Nanoparticles/chemistry , Cell Line, Tumor
10.
Food Chem ; 458: 140277, 2024 Jun 29.
Article in English | MEDLINE | ID: mdl-38970957

ABSTRACT

This study analyzed the metabolite profiles and antioxidant capacities of two waxy and non-waxy Korean red rice accessions newly bred. Fifteen phenolic compounds were detected in the rice samples. Accession1 had high fatty acids, phytosterols, and vitamin E; accession3 had high vitamin E and phytosterol; and accession4 had a high total flavonoid. The correlation analysis findings from this study validated the positive association between all the metabolites and antioxidant activity. in silico results revealed that protocatechuic acid had a docking score of -9.541, followed by luteolin, quercetin, and caffeic acid, all of which had significant docking scores and a significant number of contacts. Similarly, molecular dynamics simulations showed that phytochemicals had root mean square deviation values of <2.8 Å with Keap 1, indicating better stability. This study provides valuable insights into potential directions for future investigations and improvements in the functional qualities of other colored rice varieties.

11.
Plant Cell Rep ; 43(8): 198, 2024 Jul 18.
Article in English | MEDLINE | ID: mdl-39023775

ABSTRACT

KEY MESSAGE: Plants respond to environmental challenges by producing reactive species such as ROS and RNS, which play critical roles in signaling pathways that lead to adaptation and survival strategies. Understanding these pathways, as well as their detection methods and effects on plant development and metabolism, provides insight into increasing crop tolerance to combined stresses. Plants encounter various environmental stresses (abiotic and biotic) that affect plant growth and development. Plants sense biotic and abiotic stresses by producing different molecules, including reactive species, that act as signaling molecules and stimulate secondary messengers and subsequent gene transcription. Reactive oxygen and nitrogen species (ROS and RNS) are produced in both physiological and pathological conditions in the plasma membranes, chloroplasts, mitochondria, and endoplasmic reticulum. Various techniques, including spectroscopy, chromatography, and fluorescence methods, are used to detect highly reactive, short-half-life ROS and RNS either directly or indirectly. In this review, we highlight the roles of ROS and RNS in seed germination, root development, senescence, mineral nutrition, and post-harvest control. In addition, we provide information on the specialized metabolism involved in plant growth and development. Secondary metabolites, including alkaloids, flavonoids, and terpenoids, are produced in low concentrations in plants for signaling and metabolism. Strategies for improving crop performance under combined drought and pathogen stress conditions are discussed in this review.


Subject(s)
Plants , Reactive Nitrogen Species , Reactive Oxygen Species , Signal Transduction , Stress, Physiological , Reactive Oxygen Species/metabolism , Reactive Nitrogen Species/metabolism , Plants/metabolism , Plant Physiological Phenomena , Plant Development
12.
Appl Microbiol Biotechnol ; 108(1): 382, 2024 Jun 19.
Article in English | MEDLINE | ID: mdl-38896329

ABSTRACT

Camptothecin (CPT), an indole alkaloid popular for its anticancer property, is considered the third most promising drug after taxol and famous alkaloids from Vinca for the treatment of cancer in humans. Camptothecin was first identified in Camptotheca acuminata followed by several other plant species and endophytic fungi. Increased harvesting driven by rising global demand is depleting the availability of elite plant genotypes, such as Camptotheca acuminata and Nothapodytes nimmoniana, crucial for producing alkaloids used in treating diseases like cancer. Conservation of these genotypes for the future is imperative. Therefore, research on different plant tissue culture techniques such as cell suspension culture, hairy roots, adventitious root culture, elicitation strategies, and endophytic fungi has been adopted for the production of CPT to meet the increasing demand without affecting the source plant's existence. Currently, another strategy to increase camptothecin yield by genetic manipulation is underway. The present review discusses the plants and endophytes that are employed for camptothecin production and throws light on the plant tissue culture techniques for the regeneration of plants, callus culture, and selection of cell lines for the highest camptothecin production. The review further explains the simple, accurate, and cost-effective extraction and quantification methods. There is enormous potential for the sustainable production of CPT which could be met by culturing of suitable endophytes or plant cell or organ culture in a bioreactor scale production. Also, different gene editing tools provide opportunities for engineering the biosynthetic pathway of CPT, and the overall CPT production can be improved . KEY POINTS: • Camptothecin is a naturally occurring alkaloid with potent anticancer properties, primarily known for its ability to inhibit DNA topoisomerase I. • Plants and endophytes offer a potential approach for camptothecin production. • Biotechnology approaches like plant tissue culture techniques enhanced camptothecin production.


Subject(s)
Biotechnology , Camptotheca , Camptothecin , Endophytes , Camptothecin/biosynthesis , Biotechnology/methods , Endophytes/metabolism , Endophytes/genetics , Camptotheca/metabolism , Antineoplastic Agents, Phytogenic/biosynthesis , Humans
13.
Med Oncol ; 41(6): 134, 2024 May 04.
Article in English | MEDLINE | ID: mdl-38703282

ABSTRACT

Primary liver cancer is a type of cancer that develops in the liver. Hepatocellular carcinoma is a primary liver cancer that usually affects adults. Liver cancer is a fatal global condition that affects millions of people worldwide. Despite advances in technology, the mortality rate remains alarming. There is growing interest in researching alternative medicines to prevent or reduce the effects of liver cancer. Recent studies have shown growing interest in herbal products, nutraceuticals, and Chinese medicines as potential treatments for liver cancer. These substances contain unique bioactive compounds with anticancer properties. The causes of liver cancer and potential treatments are discussed in this review. This study reviews natural compounds, such as curcumin, resveratrol, green tea catechins, grape seed extracts, vitamin D, and selenium. Preclinical and clinical studies have shown that these medications reduce the risk of liver cancer through their antiviral, anti-inflammatory, antioxidant, anti-angiogenic, and antimetastatic properties. This article discusses the therapeutic properties of natural products, nutraceuticals, and Chinese compounds for the prevention and treatment of liver cancer.


Subject(s)
Liver Neoplasms , Signal Transduction , Animals , Humans , Antineoplastic Agents, Phytogenic/pharmacology , Antineoplastic Agents, Phytogenic/therapeutic use , Carcinoma, Hepatocellular/prevention & control , Carcinoma, Hepatocellular/drug therapy , Carcinoma, Hepatocellular/metabolism , Dietary Supplements , Liver Neoplasms/prevention & control , Liver Neoplasms/drug therapy , Liver Neoplasms/metabolism , Phytochemicals/pharmacology , Phytochemicals/therapeutic use , Signal Transduction/drug effects
14.
Int J Med Sci ; 21(6): 1016-1026, 2024.
Article in English | MEDLINE | ID: mdl-38774755

ABSTRACT

Introduction: Breast cancer results from tissue degradation caused by environmental and genetic factors that affect cells in the body. Matrix metalloproteinases, such as MMP-2 and MMP-9, are considered potential putative markers for tumor diagnosis in clinical validation due to their easy detection in body fluids. In addition, recent reports have suggested multiple roles for MMPs, rather than simply degeneration of the extracellular matrix, which comprises mobilizing growth factors and processing surface molecules. Methods: In this study, the chemotherapeutic effects of anthraquinone (AQ) extracted from edible mushrooms (Pleurotus ostreatus Jacq. ex Fr.) cells was examined in MCF-7 breast cancer cells. The cytotoxic potential and oxidative stress induced by purified anthraquinone were assessed in MCF-7 cells using MTT and ROS estimation assays. Gelatin Zymography, and DNA fragmentation assays were performed to examine MMP expression and apoptotic induction in the MCF-7 cells treated with AQ. The genes crucial for mutations were examined, and the mutated RNA knockout plausibility was analyzed using the CRISPR spcas9 genome editing software. Results: MCF-7 cells were attenuated in a concentration-dependent manner by the administration of AQ purified from P. ostreatus compared with the standard anticancer drug paclitaxel. AQ supplementation decreased oxidative stress and mitochondrial impairment in MCF-7 cells. Treatment with AQ and AQ with paclitaxel consistently decreased the expression of crucial marker genes such as MMP2 and MMP9. The mutated genes MMP2, MMP7, and MMP9 were assessed and observed to reveal four putative gene knockdown potentials for breast cancer treatment. Conclusions: The synergistic application of AQ and paclitaxel exerted a strong inhibitory effect on the MCF-7 breast cancer cells. Extensive studies are imperative to better understand the action of bioactive mixes on the edible oyster fungus P. ostreatus. The gene knockout potential detected by CRISPR SpCas9 will aid in elite research into anticancer treatments.


Subject(s)
Anthraquinones , Apoptosis , Breast Neoplasms , Matrix Metalloproteinase 2 , Matrix Metalloproteinase 9 , Pleurotus , Humans , Breast Neoplasms/drug therapy , Breast Neoplasms/pathology , Breast Neoplasms/genetics , Anthraquinones/pharmacology , MCF-7 Cells , Matrix Metalloproteinase 9/metabolism , Matrix Metalloproteinase 9/genetics , Female , Apoptosis/drug effects , Apoptosis/genetics , Matrix Metalloproteinase 2/genetics , Matrix Metalloproteinase 2/metabolism , Pleurotus/chemistry , Gene Expression Regulation, Neoplastic/drug effects , Oxidative Stress/drug effects
15.
Sci Total Environ ; 930: 172413, 2024 Jun 20.
Article in English | MEDLINE | ID: mdl-38631632

ABSTRACT

Nanotechnology is a new scientific area that promotes unique concepts to comprehend the optimal mechanics of nanoparticles (NPs) in plants under heavy metal stress. The present investigation focuses on effects of synthetic and green synthesized titanium dioxide nanoparticles (TiO2 NPs and gTiO2 NPs) against Cr(VI). Green TiO2 NPs have been produced from plant leaf extract (Ricinus communis L.). Synthesis was confirmed employing an array of optical spectroscopic and electron microscopic techniques. Chromium strongly accelerated H2O2 and MDA productions by 227 % and 266 % at highest chromium concentration (60 mg/kg of soil), respectively, and also caused DNA damage, and decline in photosynthesis. Additionally, anomalies were observed in stomatal cells with gradual increment in chromium concentrations. Conversely, foliar applications of TiO2 NPs and gTiO2 NPs considerably mitigated chromium stress. Sunflower plants treated with modest amounts of green TiO2 NPs had significantly better growth index compared to chemically synthesized ones. Principal component analysis highlighted the variations among photosynthetic attributes, oxidative stress markers, and antioxidant defense systems. Notably, gTiO2 supplementation to the Cr(VI) strained plants minimized PC3 production which is a rare report so far. Conclusively, gTiO2 NPs have been identified to be promising nano-based nutrition resource for farming applications.


Subject(s)
Chromium , Green Chemistry Technology , Helianthus , Titanium , Titanium/toxicity , Helianthus/drug effects , Chromium/toxicity , Metal Nanoparticles/toxicity , Soil Pollutants , Oxidative Stress/drug effects , Photosynthesis/drug effects , Nanoparticles
16.
Materials (Basel) ; 17(7)2024 Mar 22.
Article in English | MEDLINE | ID: mdl-38611966

ABSTRACT

This article describes an affordable method for the synthesis of MnMoO4 nanoflowers through the microwave synthesis approach. By manipulating the reaction parameters like solvent, pH, microwave power, and irradiation duration along this pathway, various nanostructures can be acquired. The synthesized nanoflowers were analyzed by using a powder X-ray diffractometer (XRD), field emission scanning electron microscopy (FE-SEM) with energy dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FT-IR), and UV-vis diffuse reflectance spectroscopy (UV-DRS) to determine their crystalline nature, morphological and functional group, and optical properties, respectively. X-ray photoelectron spectroscopy (XPS) was performed for the examination of elemental composition and chemical states by qualitative and quantitative analysis. The results of the investigations demonstrated that the MnMoO4 nanostructures with good crystallinity and distinct shape were formed successfully. The synthesized MnMoO4 nanoflowers were tested for their efficiency as a photocatalyst in the degradation studies of methylene blue (MB) as model organic contaminants in an aqueous medium under visible light, which showed their photocatalytic activity with a degradation of 85%. Through the band position calculations using the electronegative value of MnMoO4, the photocatalytic mechanism of the nanostructures was proposed. The results indicated that the effective charge separation, and transfer mechanisms, in addition to the flower-like shape, were responsible for the photocatalytic performance. The stability of the recovered photocatalyst was examined through its recyclability in the degradation of MB. Leveraging MnMoO4's photocatalytic properties, future studies may focus on scaling up these processes for practical and large-scale environmental remediation.

17.
ACS Omega ; 9(12): 13522-13533, 2024 Mar 26.
Article in English | MEDLINE | ID: mdl-38559935

ABSTRACT

Soil pollution from various anthropogenic and natural activities poses a significant threat to the environment and human health. This study explored the sources and types of soil pollution and emphasized the need for innovative remediation approaches. Nanotechnology, including the use of nanoparticles, is a promising approach for remediation. Diverse types of nanomaterials, including nanobiosorbents and nanobiosurfactants, have shown great potential in soil remediation processes. Nanotechnology approaches to soil pollution remediation are multifaceted. Reduction reactions and immobilization techniques demonstrate the versatility of nanomaterials in mitigating soil pollution. Nanomicrobial-based bioremediation further enhances the efficiency of pollutant degradation in agricultural soils. A literature-based screening was conducted using different search engines, including PubMed, Web of Science, and Google Scholar, from 2010 to 2023. Keywords such as "soil pollution, nanotechnology, nanoremediation, heavy metal remediation, soil remediation" and combinations of these were used. The remediation of heavy metals using nanotechnology has demonstrated promising results and offers an eco-friendly and sustainable solution to address this critical issue. Nanobioremediation is a robust strategy for combatting organic contamination in soils, including pesticides and herbicides. The use of nanophytoremediation, in which nanomaterials assist plants in extracting and detoxifying pollutants, represents a cutting-edge and environmentally friendly approach for tackling soil pollution.

18.
Heliyon ; 10(7): e28204, 2024 Apr 15.
Article in English | MEDLINE | ID: mdl-38571635

ABSTRACT

This study introduces a series of novel Alkyl thio-1,2,4-triazole (4a-p) and mercapto-1,2,4-triazole (3a-d) compounds derived from nalidixic acid. The synthesis was streamlined, involving interactions between nalidixic acid hydrazide and various isothiocyanates to yield cyclic and alkyl(aryl) sulfide compounds, characterized using 1H NMR, 13C NMR, IR, and elemental analysis. Antioxidant capabilities were quantified through DPPH and ABTS assays, highlighting significant potential, especially for compound 3d, which demonstrated an ABTS IC50 value of 0.397 µM, on par with ascorbic acid (IC50 = 0.87 µM). Antibacterial efficacy was established through MIC assessments against a broad spectrum of Gram-positive and Gram-negative bacteria, including Candida albicans. Compounds 3b, 4e, 4h, 4j, 4i, 4m, and 4o showed broad-spectrum activity, with 4k and 4m exhibiting pronounced potency against E. coli. Molecular docking studies validated the antibacterial potential, with compounds 4f and 4h showing high binding affinities (docking scores of -9.8 and -9.6 kcal/mol, respectively), indicating robust interactions with the bacterial enzyme targets. These scores underscore the compounds' mechanistic basis for their antibacterial action and support their therapeutic promise. Furthermore, compounds 3b, 4i, and 4m, identified through drug-likeness and toxicity predictions, were highlighted for their favorable profiles, suggesting their suitability for oral antibiotic therapies. This comprehensive study, blending synthetic, in vitro, and in silico approaches, emphasizes the triazole derivatives' potential as future candidates for antibiotic and antioxidant applications, particularly spotlighting compounds 3b, 4i, and 4m due to their promising efficacy and safety profiles.

19.
Med Oncol ; 41(5): 122, 2024 Apr 23.
Article in English | MEDLINE | ID: mdl-38652344

ABSTRACT

Drug repositioning or repurposing has gained worldwide attention as a plausible way to search for novel molecules for the treatment of particular diseases or disorders. Drug repurposing essentially refers to uncovering approved or failed compounds for use in various diseases. Cancer is a deadly disease and leading cause of mortality. The search for approved non-oncologic drugs for cancer treatment involved in silico modeling, databases, and literature searches. In this review, we provide a concise account of the existing non-oncologic drug molecules and their therapeutic potential in chemotherapy. The mechanisms and modes of action of the repurposed drugs using computational techniques are also highlighted. Furthermore, we discuss potential targets, critical pathways, and highlight in detail the different challenges pertaining to drug repositioning for cancer immunotherapy.


Subject(s)
Drug Repositioning , Immunotherapy , Neoplasms , Humans , Drug Repositioning/methods , Neoplasms/drug therapy , Neoplasms/immunology , Neoplasms/therapy , Immunotherapy/methods , Antineoplastic Agents/therapeutic use
20.
Vet Parasitol Reg Stud Reports ; 49: 100997, 2024 04.
Article in English | MEDLINE | ID: mdl-38462302

ABSTRACT

Diseases transmitted by vectors have a significant collision on society and community health, particularly in tropical and subtropical regions, where they can cause large-scale outbreaks shortly after initial transmission. The intent of this investigation was to study the plant extract derived from Sigesbeckia orientalis L. in controlling the immature stages of Anopheles, Culex and Aedes mosquitoes, while also considering its potential toxicity to ecosystems. The immature stages were exposed to different extracts (62.5-500 ppm), and the mortality of larvae and pupae, as well as ovicidal activity, were noted after 24 and 120 h of the experiment. The hexane and ethyl aceate extract of S. orientalis presented 100% ovicidal activity against the eggs of Anopheles, Aedes and Culex at 500 ppm concentration after 5 days of treatment. The hexane and ethylacetate extracts presented strong larvicidal activity with LC50 values of 215.7, 332.0, 197.4 and 212.6, 694.9 and 201.7 ppm against treated mosquitoes at 24 h, respectively. The same extract also presented promising pupicidal activity. The LC50 values of hexane extract were 219.6, 353.6, 194.2 and LC50 values of ethyl acetate were 257.6, 387.8 and 259.07 ppm against early stage pupae of three vector mosquitoes, respectively. The extracts from S. orientalis had strong inhibitory activity against growth and development of mosquitoes. SI/PSF values showed that the extracts of S. orientalis did not harm Poecilia reticulata, Diplonychus indicus (Water bug), Gambusia affinis and dragon fly nymph at tested concentrations. Furthermore, examinations of histopathology and growth disruption revealed significant damage to the midgut cells in the treated larvae. The formulations utilizing hexane and ethyl acetate extracts exhibited potent activity without posing any toxicity towards non-target organisms. This study clearly indicated that hexane and ethylacetate extracts showed promising results against treated mosquitoes. The present study documents the first report of the extracts from S. orientalis and they can be further assessed to identify compounds for application purposes.


Subject(s)
Acetates , Aedes , Anopheles , Culex , Insecticides , Animals , Hexanes/pharmacology , Sigesbeckia , Ecosystem , Insecticides/pharmacology , Insecticides/chemistry , Mosquito Vectors , Larva
SELECTION OF CITATIONS
SEARCH DETAIL