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Chemosensitizing Effect of Monk Fruit Extract on Human Bladder Cancer Cells

Journal of Cancer Therapy 2024年第6期15卷 250-264页

作者： Sensuke Konno jonathan wong.andrew penunuri Kelvin Zheng Muhammad Choudhury Department of Urology New York Medical College Valhalla New York USA

The outcomes of chemotherapy have been unsatisfactory with the palpable side effects. We hypothesized that natural products might help improve chemotherapy with few side effects. Recently, we came across the bioactive extracts of monk fruit (Siraitia grosvenori) with anticancer activity. We then investigated if these extracts might have chemosensitizing effect to improve the efficacy of drugs clinically used today. Four different drugs, cisplatin (CPL), carboplatin (CBL), mitomycin C (MMC), and gemcitabine (GEM), were used in this study. Human bladder cancer T24 cells were treated with each drug itself or drug combined with either LLE or MOG (two types of monk fruit extracts). Cell viability was determined to assess anticancer effect and also explored the anticancer mechanism of such combinations, focusing on the status of glycolysis, cell cycle, and chromatin structure. Cell viability test showed that all drugs had anticancer activity, reducing cell viability, but only CPL showed the enhanced anticancer effect when combined with LLE (not with MOG). The rest of three drugs had no such effects with LLE or MOG. The CPL/LLE combination was found to disrupt glycolysis, by inhibiting hexokinase activity, resulted in the decreased ATP synthesis. This combination also blocked the cell cycle progression, due to a G1 cell cycle arrest. Moreover, the two epigenetic regulators, DNA methyltransferase and histone deacetylase, were inactivated with the combination, indicating chromatin modifications. Ultimately, these treated cells were found to undergo apoptosis. In conclusion, anticancer activity of CPL can be significantly enhanced with LLE. This chemosensitizing effect is attributed to the glycolysis inhibition, a G1 cell cycle arrest, and chromatin modifications, ultimately leading to apoptosis. Thus, certain natural products such as LLE could be used as an adjuvant agent in current chemotherapy, improving the drug efficacy but minimizing side effects.

关键词： Monk Fruit Anticancer Bladder Cancer Chemosensitization Lakanto

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Chemosensitizing Effect of Monk Fruit Extract on Human Bladder Cancer Cells

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Journal of Cancer Therapy（癌症治疗） 2024年第6期 250页

作者： Sensuke Konno jonathan wong.andrew penunuri Kelvin Zheng Muhammad Choudhury

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Emergency department patient experience:Same location,same provider,different scores by different survey methods

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World Journal of Emergency Medicine 2019年第3期10卷 138-144页

作者： Wirachin Hoonpongsimanont Preet Kaur Sahota Yanjun Chen Maria Nguyen Christine Louis jonathan Pena andrew wong Maxwell Jen Department of Emergency Medicine University of California Orange CA USA Institute for Clinical and Translational Sciences University of California Irvine CA USA

BACKGROUND: Recent findings on emergency department (ED) patient experience surveys and concerns for the low response rates challenge the quality and reliability of the survey reports. We assessed the consistency of an ED patient experience survey report and identifi ed the effects of patient demographics on ED patient experiences. METHODS: We conducted a prospective, cross-sectional study at a university-based ED from July to December 2017. We obtained ED patient experience scores from an institutional version (IS) survey and the Press Ganey Associates-distributed survey (PGA). We compared top box scores from the two reports using frequency analysis and performed multivariable logistic regressions to identify associations between IS patient demographics and scores. RESULTS: We obtained 289 PGA and 234 IS responses. The IS reported signifi cant, higher top box scores in doctor-specifi c patient questions compared to PGA (all four P-values < 0.01). Female, Christian and White patients were more likely to give top box scores (OR 3.07, OR 2.22 and OR 2.41, P-value < 0.05, respectively). CONCLUSION: We found significant differences in ED patient experience scores between the IS and PGA surveys. We recommend that healthcare providers consider patient demographic variables when interpreting ED experience score reports. Multiple survey techniques and distribution methods may be adopted to best capture ED patient experiences.

关键词： Patient experience Emergency department Patient satisfaction Press Ganey Survey methodology

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