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1.
Iran J Public Health ; 53(3): 495-507, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38919306

RESUMO

Background: Patients with benign prostatic hyperplasia are generally treated holmium laser enucleation of the prostate (HoLEP) and thulium laser enucleation of the prostate (ThuLEP). Therefore, it is important to analyze the several surgical procedures used for benign prostatic hyperplasia in terms of their role, effectiveness and safety. Methods: We conducted a meta-analysis by searching databases of PubMed, Google Scholar, and Web of Science. Finally, we selected 10 papers including 2,456 patients treated with of thulium laser and holmium laser in the surgical treatment of benign prostatic hyperplasia. We did the analysis using RevMan 5.0 with the selected studies until 26 October 2023. Results: ThuLEP resulted in a smaller reduction in haemoglobin (MD: -0.22, 95%CI -0.32 to -0.13, P<0.001) and a shorter hospital stay (MD: -0.29, 95%CI -0.38 to -0.20, P <0.001). During the postoperative follow-ups, only the IPSS (MD: -0.03; 95%CI -0.11 to -0.06; P 0.58) at the six-month showed statistically significant differences. Conclusion: ThuLEP has greater security and faster growth than HoLEP.

2.
J Drug Target ; 32(5): 557-569, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38616303

RESUMO

We successfully prepared mercury sulphide nanoparticle hydrogels by physical encapsulation method. The successfully prepared mercuric sulphide nanoparticle hydrogel was a zinc folate hydrogel, which showed an obvious porous structure with interconnected and uniformly distributed pores and a pore size range of about 20 µm. The maximum drug loading of the hydrogels was 3%, and the in vitro cumulative release degree was in accordance with the first-order kinetic equation Mt = 149.529 (1 - e-0.026t). The particles in mercuric sulphide nanoparticle hydrogels significantly down-regulated the expression of the cell surface co-stimulatory molecule CD86 (p < .0001). Meanwhile, the inflammatory response was regulated through the NF-κB pathway in LPS-induced inflammatory cells. Later, it was observed that mercuric sulphide nanoparticle hydrogels could significantly counteract the inflammatory and immune models through a mouse ear swelling model, a rat foot-plantar swelling model and a rheumatoid arthritis model. This design targets the immunomodulatory, and anti-inflammatory effects through nanocomposite hydrogel technology. It reduces the drawbacks of low mercury utilisation and susceptibility to accumulation of toxicity. It aims to provide an experimental basis for the development of mercuric sulphide and the treatment of inflammatory and immune-related diseases.HighlightsMercury sulphide nanoparticle hydrogel has an optimal mercury sulphide nanoparticle content of 2%, is structurally homogeneous and stable, and does not exhibit significant liver or kidney toxicity.Mercuric sulphide nanoparticle hydrogel exerts anti-inflammatory effects in cells and rats, and regulates the expression of macrophage surface molecules and factors related to the NF-κB pathway.Mercuric sulphide nanoparticle hydrogel improves the condition of ankle synovial joints in a rat model of rheumatoid arthritis.


Assuntos
Anti-Inflamatórios , Hidrogéis , Compostos de Mercúrio , Nanopartículas , Animais , Hidrogéis/química , Compostos de Mercúrio/química , Compostos de Mercúrio/administração & dosagem , Camundongos , Ratos , Nanopartículas/química , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios/administração & dosagem , Anti-Inflamatórios/química , Masculino , NF-kappa B/metabolismo , Células RAW 264.7 , Artrite Reumatoide/tratamento farmacológico , Ratos Sprague-Dawley , Inflamação/tratamento farmacológico
3.
Eur J Histochem ; 67(4)2023 Oct 02.
Artigo em Inglês | MEDLINE | ID: mdl-37781863

RESUMO

Pulmonary fibrosis is a progressive lung disorder. Evidence has shown that hsa_circular (circ)RNA_0001861 is dysregulated in pulmonary fibrosis. However, the detailed function of hsa_circRNA_0001861 in pulmonary fibrosis remains unexplored. To investigate the function of hsa_circRNA_0001861 in pulmonary fibrosis, human pulmonary fibroblasts in vitro were used, and cell counting kit-8 (CCK-8) and 5-ethynyl-2'-deoxyuridine (EdU) staining were performed to assess cell viability and proliferation, respectively. Western blot analysis and reverse transcription-quantitative PCR (RT-qPCR) were used to evaluate protein and mRNA levels. Meanwhile, the relationship among hsa_circRNA_0001861, miR-296-5p and BCL-2 binding component 3 (BBC3) was investigated by RNA pull-down assays. Furthermore, an in vivo model of lung fibrosis was constructed to assess the function of hsa_circRNA_0001861 in lung fibrosis. The data revealed that TGF­ß1 significantly increased the proliferation of pulmonary fibroblasts, while this phenomenon was markedly abolished by hsa_circRNA_0001861 overexpression. hsa_circRNA_0001861 overexpression markedly inhibited TGF­ß1­induced fibrosis in pulmonary fibroblasts through the mediation of α-smooth muscle actin, E-cadherin, collagen III and fibronectin 1. Meanwhile, hsa_circRNA_0001861 could bind with miR-296-5p, and BBC3 was identified to be the downstream mRNA of miR-296-5p. In addition, the upregulation of hsa_circRNA_0001861 clearly reversed TGF­ß1­induced fibrosis and proliferation in pulmonary fibroblasts through the upregulation of BBC3. Furthermore, hsa_circRNA_0001861 upregulation markedly alleviated pulmonary fibrosis in vivo. Hsa_circRNA_0001861 upregulation attenuated pulmonary fibrosis by modulating the miR-296-5p/BBC3 axis. Hence, the present study may provide some insights for the discovery of new methods against pulmonary fibrosis.


Assuntos
MicroRNAs , Fibrose Pulmonar , Humanos , Proliferação de Células/genética , MicroRNAs/genética , Proteínas Proto-Oncogênicas c-bcl-2 , Fibrose Pulmonar/genética , RNA Circular , RNA Mensageiro , Fator de Crescimento Transformador beta1/farmacologia
4.
Artigo em Inglês | MEDLINE | ID: mdl-34475961

RESUMO

Sendeng-4 is a traditional Chinese medicine that has been successfully applied to anti-inflammatory diseases in clinical practice. Monomers within Sendeng-4 showed promising antitumor activity against lung cancer, colon cancer, and cutaneous cancer. However, potency of Sendeng-4 in melanoma has not been explored. This study aims to explore the potential application of Sendeng-4 in melanoma treatment. In the present study, we systemically investigate the possibility of Sendeng-4 for treatment of melanoma cancer in vitro by proliferation assay, colony formation, flow cell cytometry, RNA-seq, western blot, and fluorescence-based assay. Our data demonstrated that Sendeng-4 suppresses the proliferation and colony formation capacity of melanoma cells and induces cell cycle block at G2/M phase and eventually cell death. Mechanistically, transcriptome sequencing demonstrates that the PI3K-AKT pathway was significantly inactivated upon Sendeng-4 exposure, which was confirmed by western blot showing decreased phosphorylation of AKT. In addition, decreased BCL-2 expression and increased BAX expression were observed, suggesting programmed cell death via apoptosis. Moreover, LC3-II production as well as autophagosomes formation was observed as demonstrated by western blot and immunofluorescence, indicating elevated autophagy network by Sendeng-4 stimulation. Collectively, we concluded that Sendeng-4 might be used as an anticancer drug for melanoma.

5.
Nanoscale ; 13(3): 1689-1695, 2021 Jan 28.
Artigo em Inglês | MEDLINE | ID: mdl-33416821

RESUMO

The exploration of advanced electrode materials with outstanding electrochemical properties is of considerable importance for hybrid supercapacitors but challenging. In this paper, an effective two-step solvothermal route is demonstrated to synthesize nitrogen-doped carbon dots (NCDs) decorated cobalt-doped nickel sulfide (Co-NiS) flower-like hierarchitectures. Because of the modification with NCDs and doping by cobalt atoms, the resulting Co-NiS/NCDs hierarchitectures exhibit an ultrahigh specific capacity up to 1240 C g-1 (2480 F g-1) at 1 A g-1 and a remarkable rate capability of 790.8 C g-1 (1581.6 F g-1) even at 20 A g-1 when used as advanced electrodes for supercapacitors. More significantly, coupling with ap-phenylenediamine (PPD) modified reduced graphene oxide (rGO) anode, a hybrid supercapacitor device is successfully constructed, which possesses an impressive energy density of 71.6 W h kg-1 at 712.0 W kg-1 and a decent cyclic stability with 78.3% retention after 12 000 cycles at 5 A g-1. The dual improvement strategy may provide insight to rational engineering of novel electrode materials with multi-components for high-performance hybrid supercapacitors.

6.
Curr Drug Deliv ; 18(7): 984-993, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33319681

RESUMO

INTRODUCTION: Quercetin is the main active ingredient of Xanthoceras sorbifolia Bunge. Traditional compatibility theory of traditional Chinese medicine has typically reported a synergistic interaction among multiple components, while the synergistic effects of nanoemulsion have not been fully clarified. OBJECTIVE: The paper aims to study the preparation and characterization of quercetin-based Mongolia Medicine Sendeng-4 nanoemulsion (N-QUE-NE) and its antibacterial activity and mechanisms. METHODS: The morphology of the nanoemulsion was observed by Transmission Electron Microscopy (TEM), and the zeta potential, Polydispersity Index (PDI), and particle size distribution were determined by the nanometer particle size analyze. The stability of nanoemulsion was investigated by light test, high-speed centrifugal test and storage experiment at different temperatures. The combined bacteriostatic effect of N-QUE-NE was studied in vitro by the double-dilution method and checkerboard dilution method. RESULTS: The appearance of N-QUE-NE was pale yellow, clear and transparent. The nanoemulsion particles were spherical and uniformly distributed under TEM. The PDI was 0.052, the average particle size was 19.6nm, and the Zeta potential was -0.2mV. When quercetin nanoemulsion (QUENE) was used in combination with tannin nanoemulsion (TAN-NE) and toosendanin nanoemulsion (TOO-NE), it exhibited a synergistic antibacterial effect. However, the combination of QUE-NE and geniposide nanoemulsion (GEN-NE) exhibited an antagonistic effect. It was revealed that the antibacterial effect was in the order of quercetin-tannin-toosendanin nanoemulsion (QUE-TANTOO- NE) > quercetin-tannin nanoemulsion (QUE-TAN-NE) > QUE-NE > quercetin-tannintoosendanin- geniposide nanoemulsion (QUE-TAN-TOO-GEN-NE). CONCLUSION: This study explored the preparation and efficacy of N-QUE-NE, and the results showed that quercetin, tannin and toosendanin had satisfactory synergistic antibacterial effects. The antagonistic effect of quercetin and geniposide in nanoemulsion indicated that it is not beneficial to the antibacterial effect of Sendeng-4, and further research needs to be conducted to clarify its antibacterial effect.


Assuntos
Nanopartículas , Quercetina , Antibacterianos/farmacologia , Emulsões , Mongólia , Tamanho da Partícula , Quercetina/farmacologia
7.
Int. braz. j. urol ; 45(5): 916-924, Sept.-Dec. 2019. graf
Artigo em Inglês | LILACS | ID: biblio-1040072

RESUMO

ABSTRACT Objective This study aims to investigate the association of filamin A with the function and morphology of prostate cancer (PCa) cells, and explore the role of filamin A in the development of PCa, in order to analyze its significance in the evolvement of PCa. Materials and Methods A stably transfected cell line, in which filamin A expression was suppressed by RNA interference, was first established. Then, the effects of the suppression of filamin A gene expression on the biological characteristics of human PCa LNCaP cells were observed through cell morphology, in vitro cell growth curve, soft agar cloning assay, and scratch test. Results A cell line model with a low expression of filamin A was successfully constructed on the basis of LNCaP cells. The morphology of cells transfected with plasmid pSilencer-filamin A was the following: Cells were loosely arranged, had less connection with each other, had fewer tentacles, and presented a fibrous look. The growth rate of LNCap cells was faster than cells transfected with plasmid pSilencer-filamin A (P <0.05). The clones of LNCap cells in the soft agar cloning assay was significantly fewer than that of cells stably transfected with plasmid pSilencer-filamin A (P <0.05). Cells stably transfected with plasmid pSilencer-filamin A presented with a stronger healing and migration ability compared to LNCap cells (healing rate was 32.2% and 12.1%, respectively; P <0.05). Conclusion The expression of the filamin A gene inhibited the malignant development of LNCap cells. Therefore, the filamin A gene may be a tumor suppressor gene.


Assuntos
Humanos , Masculino , Neoplasias da Próstata/patologia , Filaminas/análise , Filaminas/fisiologia , Plasmídeos , Neoplasias da Próstata/genética , Sais de Tetrazólio , Fatores de Tempo , Cicatrização/fisiologia , Transfecção/métodos , Células Cultivadas , Western Blotting , Colorimetria/métodos , Linhagem Celular Tumoral , Proliferação de Células , Filaminas/genética , Formazans
8.
Int Braz J Urol ; 45(5): 916-924, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31268639

RESUMO

OBJECTIVE: This study aims to investigate the association of filamin A with the function and morphology of prostate cancer (PCa) cells, and explore the role of filamin A in the development of PCa, in order to analyze its significance in the evolvement of PCa. MATERIALS AND METHODS: A stably transfected cell line, in which filamin A expression was suppressed by RNA interference, was first established. Then, the effects of the suppression of filamin A gene expression on the biological characteristics of human PCa LNCaP cells were observed through cell morphology, in vitro cell growth curve, soft agar cloning assay, and scratch test. RESULTS: A cell line model with a low expression of filamin A was successfully constructed on the basis of LNCaP cells. The morphology of cells transfected with plasmid pSilencer-filamin A was the following: Cells were loosely arranged, had less connection with each other, had fewer tentacles, and presented a fibrous look. The growth rate of LNCap cells was faster than cells transfected with plasmid pSilencer-filamin A (P<0.05). The clones of LNCap cells in the soft agar cloning assay was significantly fewer than that of cells stably transfected with plasmid pSilencer-filamin A (P<0.05). Cells stably transfected with plasmid pSilencer-filamin A presented with a stronger healing and migration ability compared to LNCap cells (healing rate was 32.2% and 12.1%, respectively; P<0.05). CONCLUSION: The expression of the filamin A gene inhibited the malignant development of LNCap cells. Therefore, the filamin A gene may be a tumor suppressor gene.


Assuntos
Filaminas/análise , Filaminas/fisiologia , Neoplasias da Próstata/patologia , Western Blotting , Linhagem Celular Tumoral , Proliferação de Células , Células Cultivadas , Colorimetria/métodos , Filaminas/genética , Formazans , Humanos , Masculino , Plasmídeos , Neoplasias da Próstata/genética , Sais de Tetrazólio , Fatores de Tempo , Transfecção/métodos , Cicatrização/fisiologia
9.
J Colloid Interface Sci ; 524: 93-101, 2018 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-29635089

RESUMO

The development of simple and cost-effective synthesis methods for electrocatalysts of hydrogen evolution reaction (HER) and oxygen reduction reaction (ORR) is critical to renewable energy technologies. Herein, we report an interesting bifunctional HER and ORR electrocatalyst of Fe/Fe3C@N-doped-carbon porous hierarchical polyhedrons (Fe/Fe3C@N-C) by a simple metal-organic framework precursor route. The Fe/Fe3C@N-C polyhedrons consisting of Fe and Fe3C nanocrystals enveloped by N-doped carbon shells and accompanying with some carbon nanotubes on the surface were prepared by thermal annealing of Zn3[Fe(CN)6]2·xH2O polyhedral particles in nitrogen atmosphere. This material exhibits a large specific surface area of 182.5 m2 g-1 and excellent ferromagnetic property. Electrochemical tests indicate that the Fe/Fe3C@N-C hybrid has apparent HER activity with a relatively low overpotential of 236 mV at the current density of 10 mA cm-2 and a small Tafel slope of 59.6 mV decade-1. Meanwhile, this material exhibits excellent catalytic activity toward ORR with an onset potential (0.936 V vs. RHE) and half-wave potential (0.804 V vs. RHE) in 0.1 M KOH, which is comparable to commercial 20 wt% Pt/C (0.975 V and 0.820 V), and shows even better stability than the Pt/C. This work provides a new insight to developing multi-functional materials for renewable energy application.

10.
J Colloid Interface Sci ; 468: 136-144, 2016 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-26835583

RESUMO

Two-dimensional (2D) nanosheets possess the very essential features of nanomaterials, including quantum-confinement effects and unconventional reactivity, and are of special interest for a variety of promising applications. Here we report a facile chemical transformation strategy to prepare porous ZnS nanosheets via the organic-inorganic hybrid ZnS(butylamine) nanosheet-like precursor prepared from zinc diethyldithiocarbamate. The hybrid ZnS(butylamine) precursor show unique nanosheet-like structure composed by ZnS nanocluster region and non-crystalline region. The ZnS nanoclusters with crystallized state show the same crystal orientation in the nanosheets. A simple calcination process in nitrogen can induce the transformation of ZnS(butylamine) hybrid precursor to porous ZnS nanosheets. Different calcination temperature will cause the formation of porous ZnS nanosheets with different microstructure. In addition, the photoelectrochemical properties of the ZnS-based products including ZnS(butylamine) and porous ZnS nanosheets were investigated. This organic-inorganic hybrid precursor strategy to porous sulfides would also be suitable for fabricating other metal chalcogenides.

11.
J Colloid Interface Sci ; 464: 191-7, 2016 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-26619129

RESUMO

Prussian blue analogue Zn3[Fe(CN)6]2⋅xH2O (Zn-PBA) micro-/nanocrystals with well-defined spherical, cubic and polyhedral morphologies have been successfully synthesized by a simple room-temperature solution method. The morphologies and sizes of the micro-/nanocrystals can be easily tuned by HCl dosage and polymer additive. The as-prepared products are characterized by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, thermogravimetric analysis and Brunauer Emmet Teller adsorption-desorption analysis. The possible formation mechanism for these Zn-PBA micro-/nanocrystals is then proposed. In addtion, adsorption performances of these micro-/nanocrystals toward organic dyes are systematically investigated. It is demonstrated that they exhibit strong adsorption selectivity to methylene blue (MB) with an extraordinary adsorption capacity as high as 1.016gg(-1) due to the proper pore size and large specific surface area (643.2m(2)g(-1)) of the product as well as the strong electrostatic interaction between MB molecules and Zn-PBA particles. It is found that the morphology and size of the micro-/nanocrystals have an important effect on their adsorption performance. Moreover, the adsorbed MB dye can be well released in some organic solvents such as ethanol and trichloromethane. The facile morphology-controlled synthesis and excellent adsorption property afford the materials promising application in adsorption related fields.

12.
Zhongguo Zhong Yao Za Zhi ; 37(19): 2968-70, 2012 Oct.
Artigo em Chinês | MEDLINE | ID: mdl-23270244

RESUMO

OBJECTIVE: Herein, the synthesis, component, microstructure and pharmacological and toxicology researches of the Synthetic Mercury Sulfide (S-HgS) a kind of common drug in Chinese, Mongolia, Tibetan medicine, and Indian medicine system were summarized. The similar cognition about mercury toxicity & pharmacological action from some Asian regions was analyzed, and it can supply some useful direction for the traditional Asian medicine system. METHOD: Recent literatures both domestic and abroad were summarized and analyzed. RESULT: S-HgS is the basis of Vermilion, Mongolia-Vermilion, Zuotai, and Ras-sindoor. Athough the processes of synthesis are very different, but the microstructure and pharmacological & toxicology of S-HgS is similar. CONCLUSION: S-HgS has a far-ranging application,and unique curative effect. New technology such as nanotechnology can be used for improving the advancement of traditional Asian medicine.


Assuntos
Medicina Tradicional , Compostos de Mercúrio/farmacologia , Sulfatos/farmacologia , Humanos , Compostos de Mercúrio/efeitos adversos , Compostos de Mercúrio/química , Sulfatos/efeitos adversos , Sulfatos/química
13.
J Colloid Interface Sci ; 329(1): 188-95, 2009 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-18950787

RESUMO

Large-scale syntheses of Prussian Blue (PB) uniform nanocubes and nanospheres, together with an interesting PB micro-frame structure, have been achieved by direct dissociation of a single-source precursor K(3)[Fe(CN)(6)] with polyvinylprrolidone (PVP) as a capping and reducing agent. The reaction temperature has been proved to be a key factor for morphology development of PB nanocrystals, and the size of PB nanocrystals can be tuned by adjusting the feed ratio of K(3)[Fe(CN)(6)] to PVP and the concentration of K(3)[Fe(CN)(6)]. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected-area electron diffraction (SAED), and high resolution transmission electron microscopy (HRTEM) were used to characterize the resulting nanocrystals and investigate their growth mechanisms. Optical and magnetic studies showed size- and shape-dependent optical and magnetic properties in the PB nanocrystals. An excellent electro-catalytic property to hydrogen peroxide reduction was observed at the PB nanocube-modified electrode.

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