LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 14

Search options

  1. Article: Research progress on reactive oxygen species production mechanisms in tumor sonodynamic therapy.

    Dong, He-Qin / Fu, Xiao-Feng / Wang, Min-Yan / Zhu, Jiang

    World journal of clinical cases

    2023  Volume 11, Issue 22, Page(s) 5193–5203

    Abstract: In recent years, because of the growing desire to improve the noninvasiveness and safety of tumor treatments, sonodynamic therapy has gradually become a popular research topic. However, due to the complexity of the therapeutic process, the relevant ... ...

    Abstract In recent years, because of the growing desire to improve the noninvasiveness and safety of tumor treatments, sonodynamic therapy has gradually become a popular research topic. However, due to the complexity of the therapeutic process, the relevant mechanisms have not yet been fully elucidated. One of the widely accepted possibilities involves the effect of reactive oxygen species. In this review, the mechanism of reactive oxygen species production by sonodynamic therapy (SDT) and ways to enhance the sonodynamic production of reactive oxygen species are reviewed. Then, the clinical application and limitations of SDT are discussed. In conclusion, current research on sonodynamic therapy should focus on the development of sonosensitizers that efficiently produce active oxygen, exhibit biological safety, and promote the clinical transformation of sonodynamic therapy.
    Language English
    Publishing date 2023-08-07
    Publishing country United States
    Document type Journal Article ; Review
    ISSN 2307-8960
    ISSN 2307-8960
    DOI 10.12998/wjcc.v11.i22.5193
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article: [Emission Characteristics and Ozone Formation Potential of VOCs in Printing Enterprises in Beijing-Tianjin-Hebei].

    Liu, Wen-Wen / Fang, Li / Guo, Xiu-Rui / Nie, Lei / Wang, Min-Yan

    Huan jing ke xue= Huanjing kexue

    2019  Volume 40, Issue 9, Page(s) 3942–3948

    Abstract: In this study, 23 typical printing enterprises were selected in Beijing-Tianjin-Hebei. Through gas chromatography-mass spectrometry/flame ionization detection (GC-MS/FID), 46 sets of analysis results were obtained to quantitatively analyze the emissions ... ...

    Abstract In this study, 23 typical printing enterprises were selected in Beijing-Tianjin-Hebei. Through gas chromatography-mass spectrometry/flame ionization detection (GC-MS/FID), 46 sets of analysis results were obtained to quantitatively analyze the emissions characteristics of volatile organic compounds (VOCs) and the ozone generation potential of these printing enterprises. The results show that the emission concentrations of total VOCs (TVOCs) in exhaust funnels of the printing enterprises varied greatly, ranging from 3.3 mg·m
    Language Chinese
    Publishing date 2019-12-18
    Publishing country China
    Document type English Abstract ; Journal Article
    ISSN 0250-3301
    ISSN 0250-3301
    DOI 10.13227/j.hjkx.201901043
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Bisphenol A induces testicular oxidative stress in mice leading to ferroptosis.

    Li, Li / Wang, Min-Yan / Jiang, Hua-Bo / Guo, Chun-Rong / Zhu, Xian-Dan / Yao, Xia-Qin / Zeng, Wei-Wei / Zhao, Yuan / Chi, Ling-Kan

    Asian journal of andrology

    2022  Volume 25, Issue 3, Page(s) 375–381

    Abstract: Bisphenol A is a common environmental factor and endocrine disruptor that exerts a negative impact on male reproductive ability. By exploring bisphenol A-induced testicular cell death using the Institute of Cancer Research (ICR) mouse model, we found ... ...

    Abstract Bisphenol A is a common environmental factor and endocrine disruptor that exerts a negative impact on male reproductive ability. By exploring bisphenol A-induced testicular cell death using the Institute of Cancer Research (ICR) mouse model, we found that a ferroptosis phenomenon may exist. Mice were divided into six groups and administered different doses of bisphenol A via intragastric gavage once daily for 45 consecutive days. Serum was then collected to determine the levels of superoxide dismutase and malondialdehyde. Epididymal sperm was also collected for semen analysis, and testicular tissue was collected for ferritin content determination, electron microscope observation of mitochondrial morphology, immunohistochemistry, real-time quantitative polymerase chain reaction, and western blot analysis. Exposure to bisphenol A was found to decrease sperm quality and cause oxidative damage, iron accumulation, and mitochondrial damage in the testes of mice. In addition, bisphenol A was confirmed to affect the expression of the ferroptosis-related genes, glutathione peroxidase 4 (GPX4), ferritin heavy chain 1 (FTH1), cyclooxygenase 2 (COX2), and acyl-CoA synthetase 4 (ACSL4) in mouse testicular tissues. Accordingly, we speculate that bisphenol A induces oxidative stress, which leads to the ferroptosis of testicular cells. Overall, the inhibition of ferroptosis may be a potential strategy to reduce male reproductive toxicity caused by bisphenol A.
    MeSH term(s) Male ; Mice ; Animals ; Testis/metabolism ; Ferroptosis ; Semen ; Oxidative Stress
    Chemical Substances bisphenol A (MLT3645I99)
    Language English
    Publishing date 2022-09-21
    Publishing country China
    Document type Journal Article
    ZDB-ID 2075824-8
    ISSN 1745-7262 ; 1008-682X
    ISSN (online) 1745-7262
    ISSN 1008-682X
    DOI 10.4103/aja202266
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article: Controlled fabrication, characterization and comparison of porous poly(l-lactide) and poly(d-lactide) films by electric breath figure

    Wang, Min-Yan / Wang, Han / Zhai, Song / Shen, Qing

    RSC advances. 2016 Mar. 29, v. 6, no. 37

    2016  

    Abstract: Porous poly(l-lactide), PLLA, and poly(d-lactide), PDLA, films were fabricated by the electric breath figure (EBF) method. The pore sizes of both the PLLA and PDLA films were reduced with the increase in electric voltage; however, the former followed a ... ...

    Abstract Porous poly(l-lactide), PLLA, and poly(d-lactide), PDLA, films were fabricated by the electric breath figure (EBF) method. The pore sizes of both the PLLA and PDLA films were reduced with the increase in electric voltage; however, the former followed a non-linear fit, whereas the latter followed a linear fit. Under 0 V condition, the average diameter, da, was 15.0 ± 0.50 μm for the PLLA film and 6.66 ± 0.54 μm for the PDLA film, whereas under 3 kV condition, da was 1.65 ± 0.35 μm for the PLLA film and 0.73 ± 0.07 μm for the PDLA film. FTIR spectra analysis showed that the EBF process did not change the structure of PLLA or PDLA.
    Keywords Fourier transform infrared spectroscopy ; electric potential difference
    Language English
    Dates of publication 2016-0329
    Size p. 31417-31421.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ISSN 2046-2069
    DOI 10.1039/c6ra04053e
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  5. Article: Electric-Assisted Capillary Rise Adsorption of Polar and Nonpolar Solvents by Cellulose and Chitosan

    Yan, Qi / Wang Min-Yan / Wu Yu-Hang / Jiang Lin-Hai / Shen Qing

    Journal of physical chemistry. 2016 Feb. 18, v. 120, no. 6

    2016  

    Abstract: Electric-assisted capillary rise adsorption of polar and nonpolar solvents by cellulose and chitosan was studied by employing an electrostatic generator to assist a common capillary rise wetting by taking the anode and cathode electrodes respectively ... ...

    Abstract Electric-assisted capillary rise adsorption of polar and nonpolar solvents by cellulose and chitosan was studied by employing an electrostatic generator to assist a common capillary rise wetting by taking the anode and cathode electrodes respectively linked to a metal tube charged with samples and the probe solvent. To vary the voltage at 0, 100, 200, and 300 V, respectively, the recorded dynamic adsorption results showed that the cellulose and chitosan both kept a stable adsorption of the nonpolar hexane and diiodomethane, obviously ignoring the voltage increase. Moreover, the hexane amount adsorbed by cellulose and chitosan is similar, while the diiodomethane amount was adsorbed to a greater amount by cellulose as compared with the chitosan corresponding to these two biomaterials-based nonpolar components, for example, greater for cellulose and smaller for chitosan. Results also showed that the adsorption of polar water and formamide was gradually increased with the voltage increase, especially for chitosan, to correspond to the polar component of these materials, for example, greater for chitosan and smaller for cellulose. These adsorption behaviors suggested that the application of an extra electric field can only enhance the adsorption of polar solvent, and the molecular structure, for exmaple, the β-(1–4)-linked d-glucosamine units of chitosan, has sensitive electric field responses in polar solvent adsorption as compared with those of the β(1–4)-linked d-glucose units of cellulose. The reason for the electric adsorption behaviors was known due to the presence of an extra electric-field-induced reduction of the total surface tension of solvent and mainly the polar component.
    Keywords adsorption ; anodes ; capillarity ; cathodes ; cellulose ; chemical structure ; chitosan ; electric field ; generators (equipment) ; glucosamine ; glucose ; hexane ; solvents ; surface tension
    Language English
    Dates of publication 2016-0218
    Size p. 1121-1125.
    Publishing place American Chemical Society
    Document type Article
    ISSN 1520-5207
    DOI 10.1021%2Facs.jpcb.5b10673
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  6. Article ; Online: A single-crystal to single-crystal transition from a 7-fold interpenetrated coordination polymer to a non-interpenetrated one by photochemical [2 + 2] polymerization and their sensing properties.

    Zhang, Xiao-Yu / Zhao, Shu-Man / Li, Ran / Xu, Zou-Hong / Wang, Min-Yan / Jiang, Yu-Fei / Chen, Kai / Zhao, Yue / Sun, Wei-Yin

    Dalton transactions (Cambridge, England : 2003)

    2021  Volume 50, Issue 12, Page(s) 4408–4414

    Abstract: Two complexes, namely [Zn(bpeb)(sda)] (1) and [Zn(poly-bpeb)(sda)] (2), were synthesized by an organic ligand with an extensively conjugated system, bpeb = 1,4-bis[2-(3-pyridyl) vinyl]-benzene, ... ...

    Abstract Two complexes, namely [Zn(bpeb)(sda)] (1) and [Zn(poly-bpeb)(sda)] (2), were synthesized by an organic ligand with an extensively conjugated system, bpeb = 1,4-bis[2-(3-pyridyl) vinyl]-benzene, H
    Language English
    Publishing date 2021-03-11
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472887-4
    ISSN 1477-9234 ; 1364-5447 ; 0300-9246 ; 1477-9226
    ISSN (online) 1477-9234 ; 1364-5447
    ISSN 0300-9246 ; 1477-9226
    DOI 10.1039/d0dt04428h
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Electric-Assisted Capillary Rise Adsorption of Polar and Nonpolar Solvents by Cellulose and Chitosan.

    Yan, Qi / Wang, Min-Yan / Wu, Yu-Hang / Jiang, Lin-Hai / Shen, Qing

    The journal of physical chemistry. B

    2016  Volume 120, Issue 6, Page(s) 1121–1125

    Abstract: Electric-assisted capillary rise adsorption of polar and nonpolar solvents by cellulose and chitosan was studied by employing an electrostatic generator to assist a common capillary rise wetting by taking the anode and cathode electrodes respectively ... ...

    Abstract Electric-assisted capillary rise adsorption of polar and nonpolar solvents by cellulose and chitosan was studied by employing an electrostatic generator to assist a common capillary rise wetting by taking the anode and cathode electrodes respectively linked to a metal tube charged with samples and the probe solvent. To vary the voltage at 0, 100, 200, and 300 V, respectively, the recorded dynamic adsorption results showed that the cellulose and chitosan both kept a stable adsorption of the nonpolar hexane and diiodomethane, obviously ignoring the voltage increase. Moreover, the hexane amount adsorbed by cellulose and chitosan is similar, while the diiodomethane amount was adsorbed to a greater amount by cellulose as compared with the chitosan corresponding to these two biomaterials-based nonpolar components, for example, greater for cellulose and smaller for chitosan. Results also showed that the adsorption of polar water and formamide was gradually increased with the voltage increase, especially for chitosan, to correspond to the polar component of these materials, for example, greater for chitosan and smaller for cellulose. These adsorption behaviors suggested that the application of an extra electric field can only enhance the adsorption of polar solvent, and the molecular structure, for exmaple, the β-(1-4)-linked d-glucosamine units of chitosan, has sensitive electric field responses in polar solvent adsorption as compared with those of the β(1-4)-linked d-glucose units of cellulose. The reason for the electric adsorption behaviors was known due to the presence of an extra electric-field-induced reduction of the total surface tension of solvent and mainly the polar component.
    MeSH term(s) Adsorption ; Cellulose/chemistry ; Chitosan/chemistry ; Electricity ; Electrodes ; Solvents/chemistry ; Static Electricity ; Surface Properties
    Chemical Substances Solvents ; Cellulose (9004-34-6) ; Chitosan (9012-76-4)
    Language English
    Publishing date 2016-02-18
    Publishing country United States
    Document type Journal Article
    ISSN 1520-5207
    ISSN (online) 1520-5207
    DOI 10.1021/acs.jpcb.5b10673
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Shenqi fuzheng, an injection concocted from chinese medicinal herbs, combined with platinum-based chemotherapy for advanced non-small cell lung cancer

    Wang Min-Yan / Su Shi-Yue / Dong Ju / Zhan Zhen

    Journal of Experimental & Clinical Cancer Research, Vol 29, Iss 1, p

    a systematic review

    2010  Volume 137

    Abstract: Abstract Background Platinum-based chemotherapy has been a standard therapy for advanced non-small cell lung cancer (NSCLC), but it has high toxicity. In China, Shenqi Fuzheng, a newly developed injection concocted from Chinese medicinal herbs has been ... ...

    Abstract Abstract Background Platinum-based chemotherapy has been a standard therapy for advanced non-small cell lung cancer (NSCLC), but it has high toxicity. In China, Shenqi Fuzheng, a newly developed injection concocted from Chinese medicinal herbs has been reported that may increase efficacy and reduce toxicity when combined with platinum-based chemotherapy, but little is known about it outside of China. The aim of this study was to systematically review the existing clinical evidence on Shenqi Fuzheng Injection(SFI) combined with platinum-based chemotherapy for advanced NSCLC. Methods Pubmed, Cochrane Library, EMBASE, CNKI, and CBM search were organized for all documents published, in English and Chinese, until April 2010. The randomized controlled clinical trials were selected based on specific criteria, in which a SFI plus platinum-based chemotherapy treatment group was compared with a platinum-based chemotherapy control group for patients with advanced NSCLC. The quality of studies was assessed by modified Jadad's scale, and Revman 4.2 software was used for data syntheses and analyses. Results Twenty nine studies were included in this review based on our selection criteria. Of them, ten studies were of high quality and the rest were of low quality, according to the modified Jadad scale. The meta-analysis showed there was a statistically significant higher tumor response (RR, 1.19; 95% CI, 1.07 to 1.32; P = 0.001) and performance status ((RR, 1.57; 95% CI, 1.45 to 1.70; P < 0.00001); but lower severe toxicity for WBC (RR, 0.37; 95% CI, 0.29 to 0.47; P < 0.00001), PLT (RR, 0.33; 95% CI, 0.21 to 0.52; P < 0.00001), HB (RR, 0.44; 95% CI, 0.30 to 0.66; P < 0.0001) and nausea and vomiting (RR, 0.32; 95% CI, 0.22 to 0.47; P < 0.00001), when the SFI plus platinum-based chemotherapy treatment group was compared with the platinum-based chemotherapy control group. Sensitivity analysis was restricted to studies with the high quality, and the result was similar when the studies with low quality were excluded. Asymmetry was observed in a funnel plot analysis, and Egger's test also indicated an evidence of publication bias ( P = 0.016). Conclusions SFI intervention appears to be useful to increase efficacy and reduce toxicity when combined with platinum-based chemotherapy for advanced NSCLC, although this result needs to be further verified by more high-quality trials.
    Keywords Neoplasms. Tumors. Oncology. Including cancer and carcinogens ; RC254-282 ; Internal medicine ; RC31-1245 ; Medicine ; R ; DOAJ:Oncology ; DOAJ:Medicine (General) ; DOAJ:Health Sciences
    Subject code 610
    Language English
    Publishing date 2010-10-01T00:00:00Z
    Publisher BioMed Central
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  9. Article: [Study on the chemical compositions of VOCs emitted by cooking oils based on GC-MS].

    He, Wan-Qing / Nie, Lei / Tian, Gang / Li, Jing / Shao, Xia / Wang, Min-Yan

    Huan jing ke xue= Huanjing kexue

    2013  Volume 34, Issue 12, Page(s) 4605–4611

    Abstract: Volatile organic compounds (VOCs) are key precursors of ozone and secondary organic aerosols in air, and the differences in the compositions of VOCs lead to their different contribution to atmospheric reaction. Cooking oil fume is one of the important ... ...

    Abstract Volatile organic compounds (VOCs) are key precursors of ozone and secondary organic aerosols in air, and the differences in the compositions of VOCs lead to their different contribution to atmospheric reaction. Cooking oil fume is one of the important sources of atmospheric VOCs, and its chemical compositions are distinct under different conditions of oil types, food types, cooking methods and heating temperatures etc. In this study, the production of cooking oil fume was simulated by heating typical pure vegetable oils (peanut oil, sunflower oil, soybean oil, olive oil and blend oil) at different temperatures in beakers to investigate the chemical compositions of VOCs. The emitted VOCs were sampled with a Tenax adsorption tube and analyzed using GC-MS after thermal desorption. According to spectral library search and map analysis, using area normalized semi-quantitative method, preliminary qualitative and quantitative tests were conducted for the specific components of VOCs under different conditions.
    MeSH term(s) Cooking ; Gas Chromatography-Mass Spectrometry ; Olive Oil ; Ozone ; Peanut Oil ; Plant Oils/analysis ; Soybean Oil/analysis ; Sunflower Oil ; Temperature ; Volatile Organic Compounds/analysis
    Chemical Substances Olive Oil ; Peanut Oil ; Plant Oils ; Sunflower Oil ; Volatile Organic Compounds ; Ozone (66H7ZZK23N) ; Soybean Oil (8001-22-7)
    Language Chinese
    Publishing date 2013-12
    Publishing country China
    Document type Journal Article
    ISSN 0250-3301
    ISSN 0250-3301
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article: [Study on the quantitative estimation method for VOCs emission from petrochemical storage tanks based on tanks 4.0.9d model].

    Li, Jing / Wang, Min-Yan / Zhang, Jian / He, Wan-Qing / Nie, Lei / Shao, Xia

    Huan jing ke xue= Huanjing kexue

    2013  Volume 34, Issue 12, Page(s) 4718–4723

    Abstract: VOCs emission from petrochemical storage tanks is one of the important emission sources in the petrochemical industry. In order to find out the VOCs emission amount of petrochemical storage tanks, Tanks 4.0.9d model is utilized to calculate the VOCs ... ...

    Abstract VOCs emission from petrochemical storage tanks is one of the important emission sources in the petrochemical industry. In order to find out the VOCs emission amount of petrochemical storage tanks, Tanks 4.0.9d model is utilized to calculate the VOCs emission from different kinds of storage tanks. VOCs emissions from a horizontal tank, a vertical fixed roof tank, an internal floating roof tank and an external floating roof tank were calculated as an example. The consideration of the site meteorological information, the sealing information, the tank content information and unit conversion by using Tanks 4.0.9d model in China was also discussed. Tanks 4.0.9d model can be used to estimate VOCs emissions from petrochemical storage tanks in China as a simple and highly accurate method.
    MeSH term(s) Air Pollutants/analysis ; China ; Environmental Monitoring ; Models, Theoretical ; Petroleum/analysis ; Petroleum Pollution ; Volatile Organic Compounds/analysis
    Chemical Substances Air Pollutants ; Petroleum ; Volatile Organic Compounds
    Language Chinese
    Publishing date 2013-12
    Publishing country China
    Document type English Abstract ; Journal Article
    ISSN 0250-3301
    ISSN 0250-3301
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top