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1.
Biochem Biophys Res Commun ; 733: 150417, 2024 Jul 17.
Artículo en Inglés | MEDLINE | ID: mdl-39047428

RESUMEN

Selenium@zinc nanoparticles, or Se@Zn NPs, are extensively employed in various environmental, industrial and biological domains. However, the biological potential of Se@Zn NPs has not been thoroughly investigated. This study focused on fabricating Se@Zn NPs from algae using an aqueous extract of Champia parvula seaweed. Analytical techniques were used to describe the successfully synthesized Se@Zn NPs. In addition, a biological function analysis of the Se@Zn NPs was conducted. The Ultraviolet-visible spectroscopy (UV-vis) spectrum showed a specific absorbance peak for the Se@Zn NPs at 350-400 nm. The biomolecules involved in forming Se@Zn NPs were identified by their potential functional groups, as revealed by Fourier transform infrared spectroscopy (FTIR). By scanning electron microscopy (SEM) and transmission electron microscopy (TEM), Se@Zn NPs were shown to be spherical and to have a diameter range of 100-200 nm. NPs with a crystallite diameter of 54.8 nm and chemical compositions of zinc and selenium (1:1.5 ratio) were revealed by X-ray diffraction analysis (XRD) and energy dispersive x-ray spectroscopy (EDS). IC50 values were determined for the anticancer activity against A549, MCF-7 and HeLa cells. Cell morphological changes in fluorescence microscopy and apoptosis mechanisms by flow cytometry analysis were investigated, which show that Se@Zn NPs induced apoptosis in various cancer cells. DNA fragmentation and ROS levels were studied by fluorescence microscopy. In conclusion, conditions required for therapeutic and preventative applications may be met by the green synthesis of Se@Zn NPs.

2.
Nanotechnology ; 35(19)2024 Feb 21.
Artículo en Inglés | MEDLINE | ID: mdl-38320329

RESUMEN

The phytochemicals found inCaralluma pauciflorawere studied for their ability to reduce silver nitrate in order to synthesise silver nanoparticles (AgNPs) and characterise their size and crystal structure. Thunbergol, 1,1,6-trimethyl-3-methylene-2-(3,6,9,13-tetram, Methyl nonadecanoate, Methyl cis-13,16-Docosadienate, and (1R,4aR,5S)-5-[(E)-5-Hydroxy-3-methylpent were the major compounds identified in the methanol extract by gas chromatography-mass spectrum analysis. UV/Vis spectra, Fourier-transform infrared spectroscopy, x-ray diffraction, scanning electron microscope with Energy Dispersive Xâray Analysis (EDAX), Dynamic Light Scattering (DLS) particle size analyser and atomic force microscope (AfM) were used to characterise theCaralluma paucifloraplant extract-based AgNPs. The crystal structure and estimated size of the AgNPs ranged from 20.2 to 43 nm, according to the characterization data. The anti-cancer activity of silver nanoparticles (AgNPs) synthesised fromCaralluma paucifloraextract. The AgNPs inhibited more than 60% of the AGS cell lines and had an IC50 value of 10.9640.318 g, according to the findings. The cells were further examined using fluorescence microscopy, which revealed that the AgNPs triggered apoptosis in the cells. Furthermore, the researchers looked at the levels of reactive oxygen species (ROS) in cells treated with AgNPs and discovered that the existence of ROS was indicated by green fluorescence. Finally, apoptotic gene mRNA expression analysis revealed that three target proteins (AKT, mTOR, and pI3K) were downregulated following AgNP therapy. Overall, the findings imply that AgNPs synthesised from Caralluma pauciflora extract could be used to treat human gastric cancer.


Asunto(s)
Apocynaceae , Nanopartículas del Metal , Neoplasias Gástricas , Humanos , Especies Reactivas de Oxígeno/metabolismo , Fosfatidilinositol 3-Quinasas/metabolismo , Proteínas Proto-Oncogénicas c-akt/metabolismo , Apocynaceae/metabolismo , Nanopartículas del Metal/química , Neoplasias Gástricas/tratamiento farmacológico , Regulación hacia Abajo , Extractos Vegetales/farmacología , Extractos Vegetales/química , Plata/farmacología , Plata/metabolismo , Apoptosis , Serina-Treonina Quinasas TOR/metabolismo , Serina-Treonina Quinasas TOR/farmacología , Antibacterianos/farmacología , Espectroscopía Infrarroja por Transformada de Fourier
3.
Environ Res ; 252(Pt 4): 119026, 2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-38677407

RESUMEN

The purpose of this study was to look into the proximate parameters (moisture, ash, total fat, protein, and total carbohydrate), mineral composition (Fe, Cu, Mg, and Zn), antimicrobial as well as cytotoxic (anticancer) properties of extracts from the marine red macro algae Gracilaria corticata, Chondrus ocellatus, and Posphyra perforata against a few prevalent microbial pathogens (Salmonella typhi, Streptococcus pneumoniae, Corynebacterium diphtheriae, Clostridium tetani, and Treponema pallidum as well as fungal pathogens such as Candida albicans, Aspergillus niger, and Cryptococcus neoformans) and two cancerous cell lines (HeLa and MCF7). The dry biomass of these red algae biomass contains considerable valuable proximate parameters and minerals. The diffusion technique on agar wells was used to evaluate the antimicrobial properties of these test red algae methanol and hexane extract; MTT assay was used to evaluate the cytotoxic effects of the methanol and hexane extracts on each cancer cell line. The methanol extracts demonstrated significant antimicrobial activity against most of the tested pathogenic organisms. Mortality of cells was effectively caused by methanol extract and it followed by hexane extract at increased dosage 10 mg mL-1. The MTT assay revealed that the methanol extract of the red algae was considerably cytotoxic to HeLa and MCF7 cells, accompanied by the hexane extract in a dose-dependent manner. These findings suggest that the methanol extract of these red algae may contain bioactive compounds with antimicrobial and anticancer properties, which could be studied for future use in the discovery of new drugs from marine ecosystems.


Asunto(s)
Antiinfecciosos , Antineoplásicos , Rhodophyta , Humanos , Rhodophyta/química , Antiinfecciosos/farmacología , Antineoplásicos/farmacología , Células HeLa , Células MCF-7 , Pruebas de Sensibilidad Microbiana , Hongos/efectos de los fármacos , Bacterias/efectos de los fármacos
4.
Environ Res ; 216(Pt 2): 114574, 2023 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-36270535

RESUMEN

This study aimed to assess the phyto-synthesizing potential of Tarenna asiatica methanol leaf extract as well as its larvicidal and pupicidal potential against Aedes aegypti larvae. According to the findings of this study, the methanol leaf extract of T. asiatica has the potential to synthesize zinc oxide nanoparticles from zinc acetate dehydrate. Standard analytical techniques such as UV-visible spectrophotometer, Fourier-transform infrared spectroscopy, X-ray Diffraction analysis, Scanning Electron Microscope, and Energy Dispersive X-Ray were used to characterize the phyto-synthesized nanoparticles. The zinc oxide nanoparticles synthesized ranged in size from 22.35 to 31.27 nm and was spherical in shape. These nanoparticles demonstrated excellent larvicidal activity against Aedes aegypti larvae in the second, third, and fourth in stars, as well as significant pupicidal activity. These findings suggest that the methanol leaf extract of T. asiatica synthesized zinc oxide nanoparticles, which could be used to develop mosquito repellents.


Asunto(s)
Aedes , Dengue , Insecticidas , Nanopartículas del Metal , Óxido de Zinc , Animales , Plata/química , Nanopartículas del Metal/toxicidad , Nanopartículas del Metal/química , Metanol , Insecticidas/química , Extractos Vegetales/farmacología , Mosquitos Vectores , Larva , Dengue/prevención & control , Hojas de la Planta
5.
Environ Res ; 231(Pt 1): 115962, 2023 Aug 15.
Artículo en Inglés | MEDLINE | ID: mdl-37119839

RESUMEN

The search for natural therapeutic agents has intensified due to their potential to treat various diseases. Bioactive secondary metabolites from endophytes offer high therapeutic profiles and can be mass-produced after optimizing medium parameters and purification. This investigation aimed to maximize crude pigmented secondary metabolite (CPSM) production from Curvularia australiensis FC2AP by optimizing fermentation conditions statistically. The endophytic fungus produced a maximum yield of 8.81 UL/g from biomass using Sabouraud's Dextrose Broth. After screening essential factors, the Plackett-Burman design was used for factorial optimization, and the Box Behnken design was employed to investigate three significant factors. The final CPSM yield was 12.3 UL/g, approximately 4-fold higher than the preliminary growth medium. Chromatographic purification using a gradient solvent system resulted in six fractions, with the fourth fraction demonstrating the highest bioactivity profile. Structural characterization confirmed this fraction to be a dimer of epicatechin, which has anti-cancer properties, as confirmed through in vivo studies on Sprague Dawley rats. This is the first report of a epicatechin dimer produced from C. australiensis.


Asunto(s)
Catequina , Ratas , Animales , Ratas Sprague-Dawley , Curvularia , Fermentación , Hongos
6.
Bioorg Med Chem Lett ; 50: 128332, 2021 10 15.
Artículo en Inglés | MEDLINE | ID: mdl-34418571

RESUMEN

Signal transducer and activator of transcription 3 (STAT3) is a tumorigenic transcription factor that is persistently activated in various human cancers including hepatocellular carcinoma (HCC). Therefore, STAT3 is considered as a prominent target to counteract the uncontrolled proliferation of cancer cells. In the present report, pyrimidine-2,4-diones (N-methyluracil derivatives) (MNK1-MNK14) were synthesized in an ionic liquid (BMIm PF6) medium employing a ligand-free Suzuki-Miyaura cross-coupling process. Among the 14 derivatives, compound MNK8 showed good cytotoxicity towards both the tested cell lines and did not display a toxic effect against normal hepatocytes (LO2). MNK8 significantly increased the Sub-G1 cell count in both cell lines and the cytotoxic effect of MNK8 was found to be mediated through the suppression of constitutive phosphorylation of STAT3Y705. It also decreased the DNA interaction ability of nuclear STAT3 in HCC cells. MNK8 downregulated the levels of apoptosis-related proteins (such as Bcl-2, cyclin D1, survivin) and increased cleaved caspase-3 inferring the apoptogenic effect of MNK8. It also reduced the CXCL12-triggered cell migration and invasion in in vitro assay systems. Overall, MNK8 has been demonstrated as a new inhibitor of STAT3 signaling cascade in HCC cells.


Asunto(s)
Carcinoma Hepatocelular/tratamiento farmacológico , Neoplasias Hepáticas/tratamiento farmacológico , Factor de Transcripción STAT3/antagonistas & inhibidores , Factor de Transcripción STAT3/metabolismo , Antineoplásicos/farmacología , Línea Celular Tumoral , Supervivencia Celular/efectos de los fármacos , Regulación hacia Abajo , Regulación Neoplásica de la Expresión Génica/efectos de los fármacos , Humanos , Factor de Transcripción STAT3/genética , Transducción de Señal
7.
Environ Toxicol ; 36(2): 249-256, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-32946155

RESUMEN

Cardiovascular-related diseases continue to be a leading cause of death globally. Among ischemic-induced cardiac diseases, myocardial infarction (MI) is reported to be of an alarming value. Despite numerous improvements in the medical intrusions, still this armamentarium fails to be effective in managing the illness without setbacks. Ferruginol (FGL) is a major polyphenols and terpenoids with numerous pharmacological activities including antioxidant and anti-inflammatory. Following, this work was aimed to explore the cardio protective effect of FGL (50 mg/kg) in isoprenaline hydrochloride (ISO)-induced MI in experimental rats. After treatment with FGL in ISO-induced MI in rats, noticeable changes were observed in the experimental rats. Injection of ISO to rats resulted in the augmented cardiac weight, serum cardiac markers (creatine kinase, creatine kinase-MB, cardiac troponin T, and Cardiac troponin I), lipid peroxidation end products (thiobarbituric acid-reactive substance and lipid hydroperoxides), reduced endogenous antioxidants (superoxide dismutase, catalase, glutathione peroxidase, and glutathione), reduced ATPase activity, and escalated pro-inflammatory cytokines (interleukin-6, tumor necrosis factor-α, and nuclear factor-κB) levels. Interestingly, the FGL supplementation to the ISO-treated rats revealed the diminished heart weight, reduced cardiac markers, and lipid peroxidation. FGL also possessed the improved antioxidants status and diminished pro-inflammatory mediator levels. The outcomes of histological analysis also evidenced the cardio protective role of FGL. Treatment with FGL reduced the cardiac damage biomarkers maintained to near normal levels in ISO-induced rats. These study findings disclose the prospective capability of FGL in the treatment of MI in the future.


Asunto(s)
Abietanos/farmacología , Antioxidantes/farmacología , Infarto del Miocardio/tratamiento farmacológico , Animales , Antioxidantes/metabolismo , Biomarcadores/metabolismo , Catalasa/metabolismo , Modelos Animales de Enfermedad , Glutatión Peroxidasa/metabolismo , Corazón/efectos de los fármacos , Isoproterenol/toxicidad , Peroxidación de Lípido/efectos de los fármacos , Peróxidos Lipídicos/metabolismo , Masculino , Infarto del Miocardio/inducido químicamente , Infarto del Miocardio/metabolismo , Miocardio/metabolismo , Ratas , Ratas Wistar , Superóxido Dismutasa/metabolismo , Troponina T/metabolismo
8.
Environ Toxicol ; 36(4): 460-471, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-33156559

RESUMEN

BACKGROUND: Neferine (NEF) is nontoxic, bisbenzylisoquinoline alkaloid is derived from the seed embryo of lotus, a familiar medicinal plant. Although several mechanisms have been planned, an evident antitumor action pathway of NEF on the oral tumor is still not known. In the current study, we aimed at investigating the protecting effect of NEF against experimental oral carcinoma and clarify its possible mechanism through the induction of apoptosis, proliferation, and inflammatory signaling pathways. METHODS: The experimental hamsters were divided into four groups (I-IV) containing six hamsters each. The group I was control group, group II and III hamsters treated with 7,12-dimethylbenz(a)anthracene (DMBA) (0.5%) alone, thrice in a week for 10 weeks, and group III and IV hamsters received oral supplementation of NEF at a concentration of 15 mg/kg bw. All the hamsters were sacrificed after 16 weeks. RESULTS: Our results revealed that DMBA treated hamsters exhibited 100% oral tumor cell formation with high-tumor incidence (TI), tumor number (TN), tumor volume (TV), decreased levels of antioxidants, increased status of lipid peroxidation (LPO), and modulated the activities of liver marker agents as well as NF-kB, cell proliferation (PCNA), and p53 proteins. NEF supplementation in DMBA treated hamsters, resulted in delayed lesion synthesis, and brought back the levels of the biochemical parameters. In addition, immunostaining of NF-kB, PCNA, and p53 showed that they were inhibited by NEF. CONCLUSION: Thus, NEF might be considered a better chemopreventive drug in an experimental model of home-based primary care (HBPC). More research is necessary to study other pathways implicated in oral carcinomas and their modulation by NEF.


Asunto(s)
Anticarcinógenos/farmacología , Bencilisoquinolinas/farmacología , Carcinogénesis/efectos de los fármacos , Carcinoma de Células Escamosas/prevención & control , Medicamentos Herbarios Chinos/farmacología , Neoplasias de la Boca/prevención & control , 9,10-Dimetil-1,2-benzantraceno/toxicidad , Animales , Anticarcinógenos/administración & dosificación , Antioxidantes/metabolismo , Apoptosis/efectos de los fármacos , Bencilisoquinolinas/administración & dosificación , Carcinoma de Células Escamosas/patología , Proliferación Celular/efectos de los fármacos , Cricetinae , Medicamentos Herbarios Chinos/administración & dosificación , Células Epiteliales/efectos de los fármacos , Peroxidación de Lípido/efectos de los fármacos , Masculino , Neoplasias de la Boca/patología , FN-kappa B/metabolismo , Transducción de Señal/efectos de los fármacos , Proteína p53 Supresora de Tumor/metabolismo
9.
Environ Toxicol ; 35(12): 1374-1385, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-32691977

RESUMEN

Cardiovascular disease created enormous health and economic burdens worldwide, which is responsible for the highest mobility and mortality that results in nearly 6.2% of in-hospital deaths every year. Plumbagin is a major bioactive compound that occurs in the Plumbago indica and P. zeylanica with numerous therapeutic benefits. The current research exploration was planned to investigate the therapeutic role of plumbagin against doxorubicin stimulated cardiotoxicity in rats. The cardiotoxicity was stimulated to the rats by administering the 2.5 mg/kg of doxorubicin for 14 days with concurrent supplementation with plumbagin. The hemodynamic parameters were studied by using the tail-cuff plethysmography. The lipid peroxidation and antioxidant status was examined by the standard procedures. The myocardial function and damage markers were assessed with the help of commercial kits. The expression status of inflammatory markers and PI3K/Akt signaling markers were investigated by reverse transcription polymerase chain reaction (RT-PCR) and western blotting analysis, respectively. The plumbagin supplementation appreciably regained the body weight and heart weight of the investigational animals. Hemodynamic parameters and antioxidants statuses were escalated by the plumbagin treatment. The severe elevation in the cardiac damage markers and inflammatory markers were noticeably ameliorated by the plumbagin treatment. The plumbagin treatment also assuaged the overexpression of inflammatory and apoptotic proteins in the heart tissues of doxorubicin-challenged rats. The histopathological analysis revealed that the plumbagin appreciably protected the heart tissues from the doxorubicin-induced damages. The findings of this exploration evidenced that plumbagin treatment attenuated the doxorubicin-stimulated cardiotoxicity in rats.


Asunto(s)
Antioxidantes/metabolismo , Apoptosis/efectos de los fármacos , Doxorrubicina/toxicidad , Corazón/efectos de los fármacos , Miocardio , Naftoquinonas/farmacología , Animales , Proteínas Reguladoras de la Apoptosis/metabolismo , Biomarcadores/sangre , Cardiotoxicidad , Citocinas/metabolismo , Peroxidación de Lípido/efectos de los fármacos , Masculino , Miocardio/metabolismo , Miocardio/patología , Fosfatidilinositol 3-Quinasas/metabolismo , Ratas , Ratas Wistar , Transducción de Señal
10.
Biofouling ; 32(1): 71-9, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-26754920

RESUMEN

The auto-aggregating ability of a probiotic is a prerequisite for colonization and protection of the gastrointestinal tract, whereas co-aggregation provides a close interaction with pathogenic bacteria. Peptide pheromone mediated signaling has been studied in several systems. However, it has not yet been explored in prokaryotes, especially actinobacteria. Hence, in the present study, the diffusible aggregation promoting factor was purified from the culture supernatant of a potent actinobacterial probiont and characterized using 20 different actinobacterial cultures isolated from the gut region of chicken and goat. The results showed that the pheromone-like compound induces the aggregation propensity of treated isolates. The factor was found to be a heat stable, acidic pH resistant, low molecular weight peptide which enhances the biofilm forming ability of other actinobacterial isolates. The aggregation promoting factor represents a bacterial sex factor (pheromone) and its characterization confirms its usage in the probiotic formulation.


Asunto(s)
Actinobacteria , Biopelículas/crecimiento & desarrollo , Tracto Gastrointestinal/microbiología , Interacciones Microbianas/fisiología , Feromonas , Probióticos/metabolismo , Actinobacteria/aislamiento & purificación , Actinobacteria/fisiología , Animales , Pollos , Cabras , Péptidos/química , Péptidos/metabolismo , Feromonas/química , Feromonas/metabolismo , Factores Protectores
11.
Chemosphere ; 339: 139739, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37549749

RESUMEN

The heavy metal pollution is a serious environmental pollution around the globe and threatens the ecosystem. The physicochemical traits (pH, Electrical conductivity, hardness, NPK, Al, Fe, Cd, Cr, Pb, Mg, and Mn) of soil sample collected from the polluted site were analyzed and found that the most of the metal contents were beyond the acceptable limits of national standards. The metals such as Mn (1859.37 ± 11.25 mg kg-1), Cd (24.86 ± 1.85 mg kg-1), Zn (795.64 ± 9.24 mg kg-1), Pb (318.62 ± 5.85 mg kg-1), Cr (186.84 ± 6.84 mg kg-1), and Al (105.84 ± 5.42 mg kg-1) were crossing the permissible limits. The pre-isolated L. ferrooxidans showed considerable metal tolerance to metals such as Al, Cd, Cr, Pb, Mg, and Mn at up to the concentration of 750 µg mL-1 and also have remediation potential on polluted soil in a short duration of treatment. The greenhouse study demonstrated that the bio/phytoremediation potential of metal tolerant L. ferrooxidans and R. communis under various remediation (A, B, and C) groups. Surprisingly, remediation group C demonstrated greater phytoextraction potential than the other remediation groups (A and B). These results strongly suggest that coexistence of L. ferrooxidans and R. communis had a significant positive effect on phytoextraction on metal-contaminated soil.


Asunto(s)
Metales Pesados , Contaminantes del Suelo , Ricinus , Cadmio , Aguas del Alcantarillado , Ecosistema , Plomo , Contaminantes del Suelo/análisis , Metales Pesados/análisis , Biodegradación Ambiental , Suelo/química
12.
Food Sci Nutr ; 11(10): 6020-6031, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37831734

RESUMEN

Cauliflower (Brassica oleracea var. botrytis) by-products (leaves, stems, stalks) (CBP) were successfully utilized in muffins as a model system and their feasibility of incorporation was investigated. CBP powder-based muffin formulations were made by the progressive replacement of wheat flour (WF) with 10%, 20%, and 30% of CBP. The physicochemical, pasting properties, antioxidant potential, textural characteristics, and sensorial attributes were analyzed. Substitution of CBP significantly (p < .05) resulted in an upsurge in crude protein, crude fiber, minerals, total phenolics, and total flavonoid contents, as well as total antioxidant activity values of muffins. The pasting properties were influenced by monitoring an increase in peak, breakdown, final, and setback viscosities. Although the addition of an increasing amount of CBP improved the nutritional characteristics, however, the increased level of replacement (>10%) had significant adverse effects on baking and physical characteristics. The specific loaf volume of the developed muffins decreased the crumb color which became darker, and enriched muffins were hardened in texture. Furthermore, sensory evaluation confirmed the positive effects of CBP incorporation only up to 10%. Overall, present results highlighted that supplementation of wheat muffins with 10% CBP is a beneficial approach to enrich them with nutrients and intensify their antioxidant potential.

13.
Bioinorg Chem Appl ; 2022: 9493816, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-38623354

RESUMEN

The purpose of this study was aimed to investigate the zinc oxide nanoparticles (ZnONPs) synthesizing efficiency of aqueous leaf extract of Phyllanthus acidus. Furthermore, the antioxidant and anticancer activities of synthesized ZnONPs were also investigated through the in-vitro approach. The obtained results show that the aqueous extract of P. acidus can synthesize ZnONPs, as evidenced by a sharp absorbance peak at 375 nm. The Fourier transform infrared spectroscopy (FTIR) analysis confirmed that the aqueous extract contained significant numbers of functional groups, which were involved in reducing zinc nitrate into ZnONPs. Also, they participate in the capping and stabilization of synthesized ZnONPs and their size ranged from 27.14-35.74 nm with a spherical shape . The results obtained in ABTS radical scavenging activity 1, 1-diphenyl-2-picryl-hydroxyl (DPPH), hydrogen peroxide (H2O2), and 2,2'-Azino-Bis(3-ethylbenzene thiazoline-6-sulfonic acid) (ABTS) assays declared has excellent in-vitro radicals scavenging activity with reasonable IC50 values. Interestingly, these green synthesized ZnONPs have an excellent anticancer activity against human epidermoid carcinoma (Hep3) cell line in an in-vitro approach. These findings imply that an aqueous leaf extract of P. acidus can be used to synthesize pharmaceutically valuable ZnONPs. To consider such nanomaterials as potential therapeutic agents, optimization and in-vivo biomedical studies are required.

14.
Artículo en Inglés | MEDLINE | ID: mdl-35368753

RESUMEN

The RAC2 gene encoding GTPases involve cellular signaling of actin polymerization, cell migration, and formation of the phagocytic NADPH oxidase complex. Oncogenic mutations in the RAC2 gene have been identified in various cancers, and extensive research is in progress to delineate its signaling pathways and identify potential therapeutic targets in breast cancers. This paper explored developing a bioinformatics model system to understand the RAC2 gene expression pattern concerning estrogenic receptor status in breast cancers. We have used the MDA-MB-231 breast cancer cell line to identify RAC2 gene expression. To simplify the development of model system with one dataset, we retrieved the microarray dataset GSE27515 from the Gene Expression Omnibus (GEO) for the differential gene expression analysis. Then, network analysis, pathway enrichment analysis, volcano plot, ORA, and the up/downregulated genes were used to highlight genes involved in signaling network pathways. We observed that the RAC2 gene is upregulated in the GSM679722, GSM676923, and GSM679724 downregulated in the samples GSM676925, GSM676926, and GSM676927 from the GEO dataset. Our observation found that the RAC2 gene is upregulated in the estrogen receptor (ER) negative breast cancers and downregulated in ER-positive breast cancer, involving pathways such as focal adhesion, MAPK signaling, axon guidance, and VEGF signaling pathway.

15.
Artículo en Inglés | MEDLINE | ID: mdl-35356239

RESUMEN

Objective: In recent times, urinary tract infection (UTI) is one of the most widely recognized bacterial diseases all over the planet. UTI influences individuals of any age and gender. The target of this study is to concentrate on the recurrence of uropathogens, the antimicrobial susceptibility pattern of the isolates, and the plasmid profile of people from the government clinics of Karaikudi. Methods: From July 2017 to December 2017, 100 urine tests were gathered and handled for the isolation of pathogenic microbes. In total, 89 isolates were found from the samples collected. Results: Escherichia coli was discovered as the most common bacterial isolate screened from the UTI-infected people, accounting for 28.09 percent of all isolates. E. coli was seen to be the highest prevalent bacterium for UTI in all age groups and demonstrated resistance to routinely used medications, especially cefpodoxime and novobiocin, which have been 100 percent resistant. The E. coli isolates screened were positive for beta-lactamase and film generation, and they have strong antimicrobial resistance. As a result, the E. coli strains with the highest prevalence of virulence determinants have become more resistant to many medications because they support the microorganism in overcoming the host's defense and colonizing or entering the urinary system. The amplified 16S rRNA product was analyzed, and phylogenetic relationships were determined. The presence of TEM (56 percent), CTX-M (64 percent), SHV (40 percent), and OXA (60 percent) was discovered. Among E. coli isolates, CTX-M was the most common extended spectrum-beta lactamase (ESBL). Multiplex PCR was also used to identify the existence of CTX-M subgroups in E. coli isolates. Conclusion: Finally, we urge that antibiotic selection should be predicated on the awareness of the specific prevalence and that novel antimicrobial medicines for urinary infections be developed to combat the overuse of antibiotics.

16.
Food Chem Toxicol ; 168: 113367, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-35973469

RESUMEN

Green fabrication of copper nanoparticles (CuNPs) is an environmentally friendly and cost-effective method of synthesis for biomedical and bioremediation applications. In recent times, bacterial pathogens contaminating or affecting food and food crops pose the greatest threat to the food industry. In addition to this issue, synthetic dyes released from the textile and dyeing industries are polluting aquatic ecosystems and agricultural lands. The combined impact of these two factors is considered a major threat to life. Therefore, the use of CuNPs will provide an effective and long-term solution as an antibacterial and dye removing agent. The current study focuses on the synthesis of CuNPs using the leaf extract of Chloroxylon swietenia (C-CuNPs). The formation of a peak at 390 nm and a change in color from yellow to dark brown confirmed the synthesis of C-CuNPs. Subsequent synthesis at pH 9 was suitable for preparing C-CuNPs. Structural and chemical characterization of C-CuNPs was performed using Fourier Transfer Infra-Red (FTIR), X-ray diffraction (XRD), Dynamic Light scattering (DLS), and Scanning Electron Microscopy (SEM) analysis. The synthesized C-CuNPs possess a crystalline nature, a functional group that resembles C. swietenia, and are negatively charged and spherical in shape. C-CuNPs were tested against Congo red, Coomassie blue, and crystal violet and they showed complete degradation within 24 h under optimum conditions. Disk diffusion and broth dilution assay were used to test the antibacterial activity of C-CuNPs against Staphylococcus nepalensis, Staphylococcus gallinarum, Pseudomonasstutzeri,Bacillus subtilis, and Enterococcus faecalis. Therefore, the present study represents the first report on C-CuNPs' ability to degrade synthetic dyes and kill foodborne bacterial pathogens. Thus, the study has shed light on the potential of green synthesized CuNPs as bioremediation and packaging material in the future.


Asunto(s)
Antiinfecciosos , Nanopartículas del Metal , Rutaceae , Antibacterianos/química , Antiinfecciosos/química , Antiinfecciosos/farmacología , Colorantes , Rojo Congo , Cobre/química , Cobre/farmacología , Ecosistema , Violeta de Genciana , Tecnología Química Verde , Nanopartículas del Metal/química , Extractos Vegetales/química , Espectroscopía Infrarroja por Transformada de Fourier
17.
Food Chem Toxicol ; 168: 113346, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-35940333

RESUMEN

Textile industry is the major backbone of economy of the developing countries. The major problems associated in the textile factories are release of undesired dye effluents, which is a potential pollution risk for human health as well as the environmental aquatic system. The objective of this study was fabrication of a novel composite to treat textile industry effluents in an ecofriendly manner. In this context, hydroxyapatite (HAp) was derived from the mussel shell biowaste and fabricated with chitosan-sodium alginate through the in-situ method. The prepared HAp/CS-SA composite was physicochemically characterized by using Fourier Transform Infrared Spectroscopy (FTIR), X-ray diffraction (XRD), Field emission scanning electron microscopy with energy dispersive X-ray spectroscopy (FESEM-EDX) and High Resolution-Transmission Electron Microscope (HR-TEM). The photocatalytic activity of the HAp/CS-SA composite was evaluated by using Congo red (CR), Malachite green (MG) and Methylene blue (MB) as model dyes for degradation in aqueous solutions under solar irradiation. The degradation rate was recorded as CR (88%), MG (81%) and MB (93%) respectively within 75 min of irradiation. The degraded end products were subjected to toxicity assessment by evaluating the phytotoxicity on seed germination of Vigna radiata plant in pot study. The degraded end products were also tested for toxic inhibition of E. coli and P. aeruginosa by agar well diffusion method. The prepared HAp/CS-SA composite had an enhanced photocatalytic activity due to the presence of natural biopolymers and their biological properties. HAp/CS-SA composite showed potential dye degradation properties and it could be effective for dye removal from industrial wastewaters.


Asunto(s)
Quitosano , Colorantes , Agar/farmacología , Alginatos/farmacología , Quitosano/química , Colorantes/química , Colorantes/toxicidad , Rojo Congo/farmacología , Durapatita/farmacología , Escherichia coli , Humanos , Azul de Metileno/química , Azul de Metileno/farmacología , Aguas Residuales , Agua
18.
Saudi J Biol Sci ; 29(2): 730-734, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-35197738

RESUMEN

Now-a-days, different bioproducts are being used extensively for the welfare of mankind. However, for proper utility of any bioproduct, the exact biotechnological potential of that product should be explored. Honey is produced in almost every country on the planet. It has long been used as a medicinal agent in addition to its broader use as a popular food throughout the human history. It can be used to treat various diseases without causing any negative side effects. In the present study, the antibacterial potential of honey produced by A. dorsata was investigated at its variable concentrations (25, 50, 75 and 100 %) against four pathogenic bacterial species. The highest antimicrobial action was seen against E. coli at 100 % concentration of the honey while showing zone of inhibition of 37.5 ±â€¯3.5 mm. However, the lowest antibacterial action was observed against E. faecalis. The overall order of growth inhibition by the honey at its 100 % concentration for the implicated bacterial species appeared as: E. coli ˃ P. aeruginosa ˃ S. aureus ˃ E. faecalis. The honey couldn't show antibacterial action at its 25 % concentration. Our findings of the present study will be helpful for utility of the honey as an alternative medicine for curing different complications caused by microbial pathogens.

19.
Biomed Res Int ; 2022: 2003184, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35958813

RESUMEN

Prenatal heart disease, generally known as cardiac problems (CHDs), is a group of ailments that damage the heartbeat and has recently now become top deaths worldwide. It connects a plethora of cardiovascular diseases risks to the urgent in need of accurate, trustworthy, and effective approaches for early recognition. Data preprocessing is a common method for evaluating big quantities of information in the medical business. To help clinicians forecast heart problems, investigators utilize a range of data mining algorithms to examine enormous volumes of intricate medical information. The system is predicated on classification models such as NB, KNN, DT, and RF algorithms, so it includes a variety of cardiac disease-related variables. It takes do with an entire dataset from the medical research database of patients with heart disease. The set has 300 instances and 75 attributes. Considering their relevance in establishing the usefulness of alternate approaches, only 15 of the 75 criteria are examined. The purpose of this research is to predict whether or not a person will develop cardiovascular disease. According to the statistics, naïve Bayes classifier has the highest overall accuracy.


Asunto(s)
Minería de Datos , Cardiopatías , Algoritmos , Teorema de Bayes , Minería de Datos/métodos , Cardiopatías/diagnóstico por imagen , Humanos , Procesamiento de Imagen Asistido por Computador
20.
Artif Cells Nanomed Biotechnol ; 49(1): 500-510, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-34151675

RESUMEN

In this research, we formulated new chemotherapeutic copper nanoparticles (Cu NPs) containing Allium noeanum Reut. ex Regel leaf for treating human endometrial cancer. For investigating the antioxidant activitiy, the 2,2-diphenyl-1-picrylhydrazyl (DPPH) test was used. MTT test was used on normal (Human umbilical vein endothelial cells (HUVECs)) and human endometrial cancer (Ishikawa, HEC-1-A, HEC-1-B, and KLE) cell lines for comparing the anti-human endometrial cancer properties of Cu(NO3)2, A. noeanum leaf aqueous extract, and copper nanoparticles. Copper nanoparticles had high cell death and anti-human endometrial cancer effects against Ishikawa, HEC-1-A, HEC-1-B, and KLE cell lines. The IC50 of A. noeanum leaf aqueous extract and copper nanoparticles against HEC-1-B cell line were 548 and 331 µg/mL, respectively; against HEC-1-A cell line were 583 and 356 µg/mL, respectively; against KLE cell line were 609 and 411 µg/mL, respectively; and against Ishikawa cell line were 560 and 357 µg/mL, respectively. Among the above cell lines, the best result of anti-human endometrial cancer properties of copper nanoparticles was gained in the cell line of HEC-1-B. This study indicated excellent anti-human endometrial cancer potentials of copper nanoparticles containing A. noeanum in the in vitro condition.


Asunto(s)
Antioxidantes , Neoplasias Endometriales , Allium , Cobre , Femenino , Humanos
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