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Chen ZJ, Yang HG, Zhu WP, Xue CM, Zhang HM, Peng YT, Li DH, Hua HM. New aporphine alkaloids with antitumor activities from the roots of Thalictrum omeiense. J Asian Nat Prod Res 2024:1-9. [PMID: 38389314 DOI: 10.1080/10286020.2024.2317826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 02/08/2024] [Indexed: 02/24/2024]
Abstract
Two new aporphine alkaloids, 6aR-2'-(3-oxobutenyl)-thaliadin (1) and N-methylthalisopynine (2), along with ten known analogs (3-12), were isolated from the roots of Thalictrum omeiense W. T. Wang et S. H. Wang. Their structures were determined by extensive spectroscopic and X-ray crystallographic analyses. Compounds 1-7 and 9-12 were tested for their antiproliferative effects in vitro against two human cancer cell lines (A549 and MCF-7). Among them, compounds 1, 3, and 7 exhibited moderate inhibitory activity against the tested cell lines with IC50 values ranging from 23.73 to 34.97 μM.
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Affiliation(s)
- Zhao-Jing Chen
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Han-Gao Yang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Wen-Peng Zhu
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Chun-Mei Xue
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Hong-Mei Zhang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Yu-Ting Peng
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Da-Hong Li
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300350, PR China
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Hui-Ming Hua
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, PR China
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Peng YT, Xiong JX, Wei B, Li H, Xu J, Chen AJ, Wang P. Tumor necrosis factor-α inhibitor for successful treatment of toxic epidermal necrolysis with severe infection: a case series. J Int Med Res 2024; 52:3000605231223059. [PMID: 38296223 PMCID: PMC10832423 DOI: 10.1177/03000605231223059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 12/11/2023] [Indexed: 02/03/2024] Open
Abstract
Toxic epidermal necrolysis (TEN) is a rare severe cutaneous adverse reaction that involves more than 30% of the body surface area. TEN can be accompanied by a series of systemic symptoms and has a high risk of death. Tumor necrosis factor (TNF)-α inhibitors such as adalimumab and etanercept have been shown to be safe and effective for the treatment of TEN in some cases. However, clinical data on the use of TNF-α inhibitors to treat TEN with severe systemic infection are scarce. In the present study, three adult patients who developed TEN with serious active infection were successfully treated with etanercept. One of the three patients had active open pulmonary tuberculosis, and the other two had septicemia and/or fungal sepsis. All patients' skin lesions significantly improved after several days, and none of the patients developed emerging or re-emerging infectious diseases, adverse reactions, or a similar rash during follow-up. TNF-α inhibitors may be an effective treatment choice for TEN with severe systemic infection. However, further studies with large samples are still required for validation because clinical experience is limited.
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Affiliation(s)
- Yu-Ting Peng
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jian-Xia Xiong
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Bin Wei
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hui Li
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jing Xu
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ai-Jun Chen
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ping Wang
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Peng YT, Yu RT, Chen AJ, Wen ZY, Xu J, Huang K, Wang P. Predicting the Risk of Nail Involvement in Psoriasis Patients: Development and Assessment of a Predictive Nomogram. Diagnostics (Basel) 2023; 13:diagnostics13040633. [PMID: 36832121 PMCID: PMC9955142 DOI: 10.3390/diagnostics13040633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/17/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
BACKGROUND Nail involvement has a tremendous impact on psoriasis patients. Early detection and prompt intervention of psoriatic nail damage are necessary. METHODS A total of 4290 patients confirmed to have psoriasis between June 2020 and September 2021 were recruited from the Follow-up Study of Psoriasis database. Among them, 3920 patients were selected and divided into the nail involvement group (n = 929) and the non-nail involvement group (n = 2991) by inclusion and exclusion criteria. Univariate and multivariable logistic regression analyses were performed to identify the predictors of nail involvement for the nomogram. Calibration plots, the receiver operating characteristic (ROC) curve, and decision curve analysis (DCA) were used to evaluate the discriminative and calibrating ability and clinical utility of the nomogram. RESULTS Sex, age at onset, duration, smoking, drug allergy history, comorbidity, sub-type of psoriasis, scalp involvement, palmoplantar involvement, genital involvement, and PASI score were selected to establish the nomogram for nail involvement. AUROC (0.745; 95% CI: 0.725-0.765) indicated the satisfactory discriminative ability of the nomogram. The calibration curve showed favorable consistency, and the DCA showed the good clinical utility of the nomogram. CONCLUSION A predictive nomogram with good clinical utility was developed to assist clinicians in evaluating the risk of nail involvement in psoriasis patients.
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Affiliation(s)
| | | | | | | | | | | | - Ping Wang
- Correspondence: ; Tel.: +86-13271982269
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Yang M, Hou G, Peng Y, Wang L, Liu X, Jiang Y, He C, She M, Zhao M, Chen Q, Li M, Zhang Y, Lin Y, Zhang Y, Wang Y, He W, Wang X, Tang H, Luo Y. FaGAPC2/FaPKc2.2 and FaPEPCK reveal differential citric acid metabolism regulation in late development of strawberry fruit. Front Plant Sci 2023; 14:1138865. [PMID: 37082348 PMCID: PMC10110876 DOI: 10.3389/fpls.2023.1138865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 02/28/2023] [Indexed: 05/03/2023]
Abstract
Citric acid is the primary organic acid that affects the taste of strawberry fruit. Glycolysis supplies key substrates for the tricarboxylic acid cycle (TCA cycle). However, little is known about the regulatory mechanisms of glycolytic genes on citric acid metabolism in strawberry fruits. In this study, the citric acid content of strawberry fruit displayed a trend of rising and decreasing from the initial red stage to the full red stage and then dark red stage. Thus, a difference in citric acid metabolic regulation was suspected during strawberry fruit development. In addition, overexpression of either cytoplasm glyceraldehyde-3-phosphate dehydrogenase (FxaC_14g13400, namely FaGAPC2) or pyruvate kinase (FxaC_15g00080, namely FaPKc2.2) inhibited strawberry fruit ripening and the accumulation of citric acid, leading to a range of maturity stages from partial red to full red stage. The combined transcriptome and metabolome analysis revealed that overexpression of FaGAPC2 and FaPKc2.2 significantly suppressed the expression of phosphoenolpyruvate carboxykinase (FxaC_1g21491, namely FaPEPCK) but enhanced the content of glutamine and aspartic acid. Meanwhile, the activities of PEPCK and glutamate decarboxylase (GAD) were inhibited, but the activities of glutamine synthase (GS) were increased in FaGAPC2/FaPKc2.2-overexpressed fruit. Further, functional verification demonstrated that overexpression of FaPEPCK can promote strawberry fruit ripening, resulting in a range of maturity stage from full red to dark red stage, while the citric acid synthase (CS) activities and citric acid content were significantly decreased. Overall, this study revealed that FaGAPC2/FaPKc2.2 and FaPEPCK perform an important role in reducing citric acid content in strawberry fruit, and FaGAPC2/FaPKc2.2 mainly by promoting the GS degradation pathway and FaPEPCK mainly by inhibiting the CS synthesis pathway.
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Affiliation(s)
- Min Yang
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - GouYan Hou
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - YuTing Peng
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - LiangXin Wang
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - XiaoYang Liu
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - YuYan Jiang
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - CaiXia He
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - MuSha She
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - ManTong Zhao
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Qing Chen
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Mengyao Li
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Yong Zhang
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Yuanxiu Lin
- Institute of Olericulture and Pomology, Sichuan Agricultural University, Chengdu, China
| | - Yunting Zhang
- Institute of Olericulture and Pomology, Sichuan Agricultural University, Chengdu, China
| | - Yan Wang
- Institute of Olericulture and Pomology, Sichuan Agricultural University, Chengdu, China
| | - Wen He
- Institute of Olericulture and Pomology, Sichuan Agricultural University, Chengdu, China
| | - Xiaorong Wang
- Institute of Olericulture and Pomology, Sichuan Agricultural University, Chengdu, China
| | - Haoru Tang
- Institute of Olericulture and Pomology, Sichuan Agricultural University, Chengdu, China
| | - Ya Luo
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
- *Correspondence: Ya Luo,
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Zhao ZX, Yin XX, Li S, Peng YT, Yan XL, Chen C, Hassan B, Zhou SX, Pu M, Zhao JH, Hu XH, Li GB, Wang H, Zhang JW, Huang YY, Fan J, Li Y, Wang WM. miR167d-ARFs Module Regulates Flower Opening and Stigma Size in Rice. Rice (N Y) 2022; 15:40. [PMID: 35876915 PMCID: PMC9314575 DOI: 10.1186/s12284-022-00587-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 07/12/2022] [Indexed: 06/15/2023]
Abstract
Flower opening and stigma exertion are two critical traits for cross-pollination during seed production of hybrid rice (Oryza sativa L.). In this study, we demonstrate that the miR167d-ARFs module regulates stigma size and flower opening that is associated with the elongation of stamen filaments and the cell arrangement of lodicules. The overexpression of miR167d (OX167d) resulted in failed elongation of stamen filaments, increased stigma size, and morphological alteration of lodicule, resulting in cleistogamy. Blocking miR167d by target mimicry also led to a morphological alteration of the individual floral organs, including a reduction in stigma size and alteration of lodicule cell morphology, but did not show the cleistogamous phenotype. In addition, the four target genes of miR167d, namely ARF6, ARF12, ARF17, and ARF25, have overlapping functions in flower opening and stigma size. The loss-of-function of a single ARF gene did not influence the flower opening and stigma size, but arf12 single mutant showed a reduced plant height and aborted apical spikelets. However, mutation in ARF12 together with mutation in either ARF6, ARF17, or ARF25 led to the same defective phenotypes that were observed in OX167d, including the failed elongation of stamen filaments, increased stigma size, and morphological alteration of lodicule. These findings indicate that the appropriate expression of miR167d is crucial and the miR167d-ARFs module plays important roles in the regulation of flower opening and stigma size in rice.
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Affiliation(s)
- Zhi-Xue Zhao
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xiao-Xiao Yin
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
| | - Sha Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yu-Ting Peng
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xiu-Lian Yan
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
| | - Chen Chen
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
| | - Beenish Hassan
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
| | - Shi-Xin Zhou
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
| | - Mei Pu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
| | - Jing-Hao Zhao
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xiao-Hong Hu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
| | - Guo-Bang Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
| | - He Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
| | - Ji-Wei Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yan-Yan Huang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
| | - Jing Fan
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yan Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China
| | - Wen-Ming Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China.
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Liu C, Peng YT, Li J, Lin L, Song Q, Cheng W, Zeng YQ, Chen P. [Status of vaccination and related influencing factors in patients with chronic obstructive pulmonary disease: a real-world cross-sectional study]. Zhonghua Jie He He Hu Xi Za Zhi 2022; 45:355-361. [PMID: 35381632 DOI: 10.3760/cma.j.cn112147-20211019-00727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the influenza and pneumonia vaccination rates in patients with chronic obstructive pulmonary disease (COPD), and analyze the factors affecting vaccination. Methods: Totally 4 016 COPD patients at the initial visit were included in the Respiratory Department of Xiangya Second Hospital of Central South University from December, 2016 to December, 2019. Each patient's vaccination status after the visit for 1 year was reviewed, and finally 3 177 patients were included in the analysis. Relevant factors affecting vaccination were analyzed with logistic regression. Results: The overall vaccination rates of COPD patients with influenza vaccine, pneumonia vaccine and influenza combined pneumonia vaccine were 2.3% (72/3 177), 1.1% (34/3 177) and 1.1% (34/3 177), respectively. The influenza vaccination rate of urban patients (3.3%, 41/1 252) was higher than that of rural patients (1.6%, 31/1 925,P=0.002). The rates of influenza vaccine, pneumonia vaccine and influenza combined pneumonia vaccine in ex-smokers with COPD were 3.3% (33/993), 2.1% (21/993), 2.1% (21/993), respectively and 1.7% (25/1 467), 0.7% (11/1 467), 0.7% (11/1 467), in current smokers with COPD, respectively (P=0.034, P=0.015, P=0.015, respectively). The influenza vaccination rate was higher in patients with COPD assessment test (CAT) scored less than 10 (4%, 27/673) than patients with CAT scored more than 10 (1.8%, 45/2 504,P=0.002). In a multifactor analysis, patients who lived in country side, were current smokers, and had more symptoms were less likely to be vaccinated, with an aOR 1.73(95%CI 1.02-2.93), 2.10(95%CI 1.18-3.76), 2.06(95%CI 1.24-3.43), respectively. 81.2% of COPD patients did not receive the vaccine because they did not know the vaccine. Conclusions: Vaccination rates for influenza vaccine, pneumonia vaccine and both of them in COPD patients were low and the patients lacked knowledge of vaccine. The residence, smoking status and symptoms were related to the vaccination of COPD patients, and these should be taken into account in the vaccination health education.
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Affiliation(s)
- C Liu
- Department of Pulmonary and Critical Care Medicine, the Second Xiangya Hospital, Central South University; Research Unit of Respiratory Disease, Central South University, Changsha 410011, China
| | - Y T Peng
- Department of Pulmonary and Critical Care Medicine, the Second Xiangya Hospital, Central South University; Research Unit of Respiratory Disease, Central South University, Changsha 410011, China
| | - J Li
- Department of Pulmonary and Critical Care Medicine, the Second Xiangya Hospital, Central South University; Research Unit of Respiratory Disease, Central South University, Changsha 410011, China
| | - L Lin
- Department of Pulmonary and Critical Care Medicine, the Second Xiangya Hospital, Central South University; Research Unit of Respiratory Disease, Central South University, Changsha 410011, China
| | - Q Song
- Department of Pulmonary and Critical Care Medicine, the Second Xiangya Hospital, Central South University; Research Unit of Respiratory Disease, Central South University, Changsha 410011, China
| | - W Cheng
- Department of Pulmonary and Critical Care Medicine, the Second Xiangya Hospital, Central South University; Research Unit of Respiratory Disease, Central South University, Changsha 410011, China
| | - Y Q Zeng
- Department of Pulmonary and Critical Care Medicine, the Second Xiangya Hospital, Central South University; Research Unit of Respiratory Disease, Central South University, Changsha 410011, China
| | - P Chen
- Department of Pulmonary and Critical Care Medicine, the Second Xiangya Hospital, Central South University; Research Unit of Respiratory Disease, Central South University, Changsha 410011, China
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Peng YT, Hsu YH, Chou MY, Chu CS, Su CS, Liang CK, Wang YC, Yang T, Chen LK, Lin YT. Factors associated with insomnia in older adult outpatients vary by gender: a cross-sectional study. BMC Geriatr 2021; 21:681. [PMID: 34876057 PMCID: PMC8650339 DOI: 10.1186/s12877-021-02643-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 11/18/2021] [Indexed: 01/17/2023] Open
Abstract
Background Insomnia is a common sleep disturbance in older adults and is associated with many poor health outcomes. This study aimed to explore factors associated with insomnia in older adult outpatient clinics, and to further analyze the influence of gender on factors associated with insomnia. Methods This cross-sectional study was conducted in the outpatient clinics of a tertiary hospital in Southern Taiwan from July to September 2018. A total of 400 consecutive subjects aged 60 years or older were recruited. Insomnia was defined as a score of ≥6 points on the Athens Insomnia Scale (AIS). Socio-demographics, health behaviors and clinical data were collected by face-to-face interview. Multivariable logistic regression was adopted for statistical analysis of the entire sample and stratified by gender. Results Participants’ mean age was 74.74 ± 8.54 years, and the majority (93%) had more than one chronic disease. The prevalence of insomnia accounted for 30% (120/400) of all subjects, with males 22.9% (46/201) and females 37.2% (74/199). Gender, appetite, exercise, depressive symptoms, and sleep-related conditions such as short sleep duration, sleeping pills usage, medium-high risk of obstructive sleep apnea (OSA) and restless leg syndrome (RLS) were factors associated with insomnia in older adults. Exercise, sleeping pills usage, and RLS were independently associated with insomnia only in men, while appetite and medium-high risk of OSA were associated with insomnia in women only. In addition, after further adjusting for covariates, prevalence of the insomnia-related symptoms such as sleep induction, total sleep duration, sleep quality and sleepiness during the day was significantly higher in females than in males. Conclusions Insomnia symptoms are highly prevalent among older adults, predominantly females. Significant differences are found between genders in factors associated with insomnia and insomnia-related symptoms. Understanding gender differences may help clinicians to modify associated factors when managing older adults with insomnia.
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Affiliation(s)
- Yu-Ting Peng
- Center for Geriatrics and Gerontology, Kaohsiung Veterans General Hospital, No. 386, Dazhong 1st Rd., Zuoying Dist., Kaohsiung City, 81362, Taiwan, Republic of China.,Department of Family Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Ying-Hsin Hsu
- Center for Geriatrics and Gerontology, Kaohsiung Veterans General Hospital, No. 386, Dazhong 1st Rd., Zuoying Dist., Kaohsiung City, 81362, Taiwan, Republic of China.,Division of Neurology, Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.,Meiho University, Pingtung, Taiwan
| | - Ming-Yueh Chou
- Center for Geriatrics and Gerontology, Kaohsiung Veterans General Hospital, No. 386, Dazhong 1st Rd., Zuoying Dist., Kaohsiung City, 81362, Taiwan, Republic of China.,Aging and Health Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Geriatric Medicine, National Yang Ming Chiao Tung University School of Medicine, Taipei, Taiwan
| | - Che-Sheng Chu
- Center for Geriatrics and Gerontology, Kaohsiung Veterans General Hospital, No. 386, Dazhong 1st Rd., Zuoying Dist., Kaohsiung City, 81362, Taiwan, Republic of China.,Department of Psychiatry, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Chen-San Su
- Division of Neurology, Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Chih-Kuang Liang
- Center for Geriatrics and Gerontology, Kaohsiung Veterans General Hospital, No. 386, Dazhong 1st Rd., Zuoying Dist., Kaohsiung City, 81362, Taiwan, Republic of China. .,Division of Neurology, Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan. .,Aging and Health Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan. .,Department of Geriatric Medicine, National Yang Ming Chiao Tung University School of Medicine, Taipei, Taiwan.
| | - Yu-Chun Wang
- Center for Geriatrics and Gerontology, Kaohsiung Veterans General Hospital, No. 386, Dazhong 1st Rd., Zuoying Dist., Kaohsiung City, 81362, Taiwan, Republic of China
| | - Tsan Yang
- Department of Health Business Administration, Meiho University, Pingtung, Taiwan
| | - Liang-Kung Chen
- Aging and Health Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Geriatric Medicine, National Yang Ming Chiao Tung University School of Medicine, Taipei, Taiwan.,Center for Geriatrics and Gerontology, Taipei Veterans General Hospital, Taipei, Taiwan.,Taipei Municipal Gan-Dau Hospital, Taipei, Taiwan
| | - Yu-Te Lin
- Center for Geriatrics and Gerontology, Kaohsiung Veterans General Hospital, No. 386, Dazhong 1st Rd., Zuoying Dist., Kaohsiung City, 81362, Taiwan, Republic of China.,Division of Neurology, Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.,Department of Pharmacy, Tajen University, Pingtung, Taiwan
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8
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Peng JB, Peng YT, Lin P, Wan D, Qin H, Li X, Wang XR, He Y, Yang H. Differentiating infected focal liver lesions from malignant mimickers: value of ultrasound-based radiomics. Clin Radiol 2021; 77:104-113. [PMID: 34753587 DOI: 10.1016/j.crad.2021.10.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 10/11/2021] [Indexed: 12/12/2022]
Abstract
AIM To establish an ultrasound-based radiomics model through machine learning methods and then to assess the ability of the model to differentiate infected focal liver lesions from malignant mimickers. MATERIALS AND METHODS A total of 104 patients with infected focal liver lesions and 485 patients with malignant hepatic tumours were included, consisting of hepatocellular carcinoma (HCC), cholangiocarcinoma (CC), combined hepatocellular-cholangiocarcinoma (cHCC-CC), and liver metastasis. Radiomics features were extracted from grey-scale ultrasound images. Feature selection and predictive modelling were carried out by dimensionality reduction methods and classifiers. The diagnostic effect of the prediction mode was assessed by receiver operating characteristic (ROC) curve analysis. RESULTS In total, 5,234 radiomics features were extracted from grey-scale ultrasound image of every focal liver lesion. The ultrasound-based radiomics model had a favourable predictive value for differentiating infected focal liver lesions from malignant hepatic tumours, with an area under the curve (AUC) of 0.887 and 0.836 (HCC group), 0.896 and 0.766 (CC group), 0.944 and 0.754 (cHCC-CC group), 0.918 and 0.808 (liver metastasis group), and 0.949 and 0.745 (malignant hepatic tumour group) for the training set and validation set, respectively. CONCLUSIONS Ultrasound-based radiomics is helpful in differentiating infected focal liver lesions from malignant mimickers and has the potential for use as a supplement to conventional grey-scale ultrasound and contrast-enhanced ultrasound (CEUS).
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Affiliation(s)
- J B Peng
- Department of Medical Ultrasonics, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Y T Peng
- Department of Medical Ultrasonics, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - P Lin
- Department of Medical Ultrasonics, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - D Wan
- Department of Medical Ultrasonics, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - H Qin
- Department of Medical Ultrasonics, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - X Li
- GE HealthcareShanghai, People's Republic of China
| | - X R Wang
- GE HealthcareShanghai, People's Republic of China
| | - Y He
- Department of Medical Ultrasonics, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, People's Republic of China.
| | - H Yang
- Department of Medical Ultrasonics, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, People's Republic of China.
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Lu YY, Peng YT, Huang YT, Chen JN, Jhou J, Lan LW, Jian SH, Kuo CC, Hsieh SH, Chen CH, Sankar R, Chou FC. Engineering an Indium Selenide van der Waals Interface for Multilevel Charge Storage. ACS Appl Mater Interfaces 2021; 13:4618-4625. [PMID: 33445863 DOI: 10.1021/acsami.0c16336] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
As the continuous miniaturization of floating-gate transistors approaches a physical limit, new innovations in device architectures, working principles, and device materials are in high demand. This study demonstrated a nonvolatile memory structure with multilevel data storage that features a van der Waals gate architecture made up of a partially oxidized surface layer/indium selenide (InSe) van der Waals interface. The key functionality of this proof-of-concept device is provided through the generation of charge-trapping sites via an indirect oxygen plasma treatment on the InSe surface layer. In contrast to floating-gate nonvolatile memory, these sites have the ability to retain charge without the help of a gate dielectric. Together with the layered structure, the surface layer with charge-trapping sites facilitates continual electrostatic doping in the underlying InSe layers. The van der Waals gating effect is further supported by trapped charge-induced core-level energy shifts and relative work function variations obtained from operando scanning X-ray photoelectron spectroscopy and Kelvin probe microscopy, respectively. On modulating the amount of electric field-induced trapped electrons by the electrostatic gate potential, eight distinct storage states remained over 3000 s. Moreover, the device exhibits a high current switching ratio of 106 within 11 cycles. The demonstrated characteristics suggest that the engineering of an InSe interface has potential applications for nonvolatile memory.
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Affiliation(s)
- Yi-Ying Lu
- Department of Physics, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Yu-Ting Peng
- Department of Physics, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Yan-Ting Huang
- Department of Physics, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Jia-Ni Chen
- Department of Physics, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Jie Jhou
- Department of Physics, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Liang-Wei Lan
- Department of Physics, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Shi-Hao Jian
- Department of Physics, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Chien-Cheng Kuo
- Department of Physics, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Shang-Hsien Hsieh
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Chia-Hao Chen
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Raman Sankar
- Institute of Physics, Academia Sinica, Taipei 11529, Taiwan
| | - Fang-Cheng Chou
- Center for Condensed Matter Sciences, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
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10
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Peng YT, Zhou CY, Lin P, Wen DY, Wang XD, Zhong XZ, Pan DH, Que Q, Li X, Chen L, He Y, Yang H. Preoperative Ultrasound Radiomics Signatures for Noninvasive Evaluation of Biological Characteristics of Intrahepatic Cholangiocarcinoma. Acad Radiol 2020; 27:785-797. [PMID: 31494003 DOI: 10.1016/j.acra.2019.07.029] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 07/27/2019] [Accepted: 07/29/2019] [Indexed: 02/07/2023]
Abstract
RATIONALE AND OBJECTIVES The purpose of this study was to establish and validate radiomics signatures based on ultrasound (US) medicine images to assess the biological behaviors of intrahepatic cholangiocarcinoma (ICC) in a noninvasive manner. MATERIALS AND METHODS This study consisted of 128 ICC patients. We focused on evaluating six pathological features: microvascular invasion, perineural invasion, differentiation, Ki-67, vascular endothelial growth factor, and cytokeratin 7. Region of interest (ROI) of ICC was identified by manually plotting the tumor contour on the grayscale US image. We extracted radiomics features from medical US imaging. Then, dimensionality reduction methods and classifiers were used to develop radiomic signatures for evaluating six pathological features in ICC. Finally, independent validation datasets were used to assess the radiomic signatures performance. RESULTS We extracted 1076 quantitative characteristic parameters on the US medicine images. Based on extracted radiomics features, the best performing radiomic signatures for evaluating microvascular invasion features were produced by hypothetical test + support vector machine (SVM), perineural invasion subgroup were least absolute shrinkage and selection operator + principal component analysis + support vector machine, differentiation subgroup were hypothetical test + decision tree, Ki-67 subgroup were hypothetical test + logistic regression, vascular endothelial growth factor subgroup were hypothetical test + Gradient Boosting Decision Tree (GBDT), and cytokeratin 7 subgroup were hypothetical test + bagging, respectively. CONCLUSION Through the high-throughput radiomics analysis based on US medicine images, we proposed radiomics signatures that have moderate efficiency in predicting the biological behaviors of ICC noninvasively.
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Affiliation(s)
- Yu-Ting Peng
- Department of Medical Ultrasonics, First Afliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang, China
| | - Chuan-Yang Zhou
- Department of Medical Ultrasonics, First Afliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang, China
| | - Peng Lin
- Department of Medical Ultrasonics, First Afliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang, China
| | - Dong-Yue Wen
- Department of Medical Ultrasonics, First Afliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang, China
| | - Xiao-Dong Wang
- Department of Medical Ultrasonics, First Afliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang, China
| | - Xiao-Zhu Zhong
- Department of Medical Ultrasonics, First Afliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang, China
| | - Deng-Hua Pan
- Department of Medical Ultrasonics, First Afliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang, China
| | - Qiao Que
- Department of Medical Ultrasonics, First Afliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang, China
| | - Xin Li
- GE Healthcare, Shanghai, China
| | | | - Yun He
- Department of Medical Ultrasonics, First Afliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang, China.
| | - Hong Yang
- Department of Medical Ultrasonics, First Afliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang, China.
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Lin P, Peng YT, Gao RZ, Wei Y, Li XJ, Huang SN, Fang YY, Wei ZX, Huang ZG, Yang H, Chen G. Radiomic profiles in diffuse glioma reveal distinct subtypes with prognostic value. J Cancer Res Clin Oncol 2020; 146:1253-1262. [PMID: 32065261 DOI: 10.1007/s00432-020-03153-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 02/10/2020] [Indexed: 01/22/2023]
Abstract
PURPOSE To evaluate a radiomic approach for the stratification of diffuse gliomas with distinct prognosis and provide additional resolution of their clinicopathological and molecular characteristics. METHODS For this retrospective study, a total of 704 radiomic features were extracted from the multi-channel MRI data of 166 diffuse gliomas. Survival-associated radiomic features were identified and submitted to distinguish glioma subtypes using consensus clustering. Multi-layered molecular data were used to observe the different clinical and molecular characteristics between radiomic subtypes. The relative profiles of an array of immune cell infiltrations were measured gene set variation analysis approach to explore differences in tumor immune microenvironment. RESULTS A total of 6 categories, including 318 radiomic features were significantly correlated with the overall survival of glioma patients. Two subgroups with distinct prognosis were separated by consensus clustering of radiomic features that significantly associated with survival. Histological stage and molecular factors, including IDH status and MGMT promoter methylation status were significant differences between the two subtypes. Furthermore, gene functional enrichment analysis and immune infiltration pattern analysis also hinted that the inferior prognosis subtype may more response to immunotherapy. CONCLUSION A radiomic model derived from multi-parameter MRI of the gliomas was successful in the risk stratification of diffuse glioma patients. These data suggested that radiomics provided an alternative approach for survival estimation and may improve clinical decision-making.
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Affiliation(s)
- Peng Lin
- Department of Ultrasound, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Yu-Ting Peng
- Department of Ultrasound, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Rui-Zhi Gao
- Department of Ultrasound, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Yan Wei
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Xiao-Jiao Li
- Department of PET-CT, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Su-Ning Huang
- Department of Radiotherapy, Guangxi Medical University Cancer Hospital, 71 Hedi Road, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Ye-Ying Fang
- Department of Radiotherapy, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Zhu-Xin Wei
- Department of Radiotherapy, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Zhi-Guang Huang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Hong Yang
- Department of Ultrasound, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Gang Chen
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China.
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Qin H, Wen DY, Que Q, Zhou CY, Wang XD, Peng YT, He Y, Yang H, Liao BM. Reduced expression of microRNA-139-5p in hepatocellular carcinoma results in a poor outcome: An exploration the roles of microRNA-139-5p in tumorigenesis, advancement and prognosis at the molecular biological level using an integrated meta-analysis and bioinformatic investigation. Oncol Lett 2019; 18:6704-6724. [PMID: 31807180 PMCID: PMC6876336 DOI: 10.3892/ol.2019.11031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 09/27/2019] [Indexed: 02/06/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is generally considered one of the most common gastrointestinal malignant tumors, characterized by high invasiveness and metastatic rate, as well as insidious onset. A relationship between carcinogenicity and aberrant microRNA-139-5p (miR-139-5p) expression has been identified in multiple tumors while the specific molecular mechanisms of miR-139-5p in HCC have not yet been thoroughly elucidated. A meta-analysis of available data from The Cancer Genome Atlas (TCGA), Gene Expression Omnibus, ArrayExpress and Oncomine databases, as well as the published literature, was comprehensively conducted with the aim of examining the impact of miR-139-5p expression on HCC. Additionally, predicted downstream target genes were confirmed using a series of bioinformatics tools. Moreover, a correlative biological analysis was performed to ascertain the precise function of miR-139-5p in HCC. The results revealed that the expression of miR-139-5p was noticeably lower in HCC compared with non-tumor liver tissues according to the pooled standard mean difference, which was -0.84 [95% confidence interval (CI): -1.36 to -0.32; P<0.001]. Furthermore, associations were detected between miR-139-5p expression and certain clinicopathological characteristics of TCGA samples, including tumor grade, pathological stage and T stage. Moreover, the pooled hazard ratio (HR) for overall survival (HR=1.37; 95% CI: 1.07-1.76; P=0.001) indicated that decreased miR-139-5p expression was a risk factor for adverse outcomes. Additionally, 382 intersecting genes regulated by miR-139-5p were obtained and assembled in signaling pathways, including 'transcription factor activity, sequence-specific DNA binding', 'pathways in cancer' and 'Ras signaling pathway'. Notably, four targeted genes that were focused in 'pathways in cancer' were identified as hub genes and immunohistochemical staining of the proteins encoded by these four hub genes in liver tissues, explored using the Human Protein Atlas database, confirmed their expression patterns in HCC and normal liver tissues Findings of the present study suggest that reduced miR-139-5p expression is capable of accelerating tumor progression and is associated with a poor clinical outcome by modulating the expression of downstream target genes involved in tumor-associated signaling pathways.
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Affiliation(s)
- Hui Qin
- Department of Medical Ultrasonics, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Dong-Yue Wen
- Department of Medical Ultrasonics, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Qiao Que
- Department of Medical Ultrasonics, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Chuan-Yang Zhou
- Department of Medical Ultrasonics, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Xiao-Dong Wang
- Department of Medical Ultrasonics, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Yu-Ting Peng
- Department of Medical Ultrasonics, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Yun He
- Department of Medical Ultrasonics, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Hong Yang
- Department of Medical Ultrasonics, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Bo-Ming Liao
- Department of Internal Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
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Li XY, Cheng W, Duan JX, Peng YT, Cai S, Chen Y, Chen P. [Reliability and validity of the chronic obstructive pulmonary disease morning symptom diary Chinese version]. Zhonghua Jie He He Hu Xi Za Zhi 2019; 42:444-450. [PMID: 31189231 DOI: 10.3760/cma.j.issn.1001-0939.2019.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To describe the development of the Chronic Obstructive Pulmonary Disease Morning Symptom Diary (COPD-MSD) Chinese version and to test its reliability and validity. Methods: The COPD-MSD Chinese version was developed by the standard cross-cultural translation principle. A hundred and eight patients with COPD in stable condition from the Second Xiangya Hospital were assessed by interview with COPD-MSD Chinese version, and underwent mMRC, CAT scores and pulmonary function test.The reliability and validity were evaluated by performing correlation analysis.The stages of COPD determined by lung function were compared to observe the value of COPD-MSD Chinese version in determining disease severity. Results: The Cronbach's alpha and retest reliability of the total scale were 0.908 and 0.927, respectively.The explanatory factor analysis was conducted using orthogonal rotation through the maximum variation principle components extraction which revealed the presence of 5 components with eigen values exceeding 1, explaining totally 74.257% of the variance, and the total score of the COPD-MSD Chinese version was significantly correlated with the mMRC and CAT scores (r=0.44 and 0.56,P<0.01), indicating that the scale of the convergence validity was good. The COPD-MSD Chinese version scores varied significantly in patients with different severity of COPD(χ(2)=9.808, P<0.05). Conclusion: The COPD-MSD Chinese version showed good reliability and validity and could be used in clinical assessment of morning symptoms in Chinese COPD patients.
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Affiliation(s)
- X Y Li
- Pulmonary and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha 410011, China
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Huang PH, Chen MC, Peng YT, Kao WH, Chang CH, Wang YC, Lai CH, Hsieh JT, Wang JH, Lee YT, Lin E, Yue CH, Wang HY, You SC, Lin H. Cdk5 Directly Targets Nuclear p21CIP1 and Promotes Cancer Cell Growth. Cancer Res 2017; 76:6888-6900. [PMID: 27909065 DOI: 10.1158/0008-5472.can-15-3253] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 08/03/2016] [Accepted: 09/09/2016] [Indexed: 11/16/2022]
Abstract
The significance of Cdk5 in cell-cycle control and cancer biology has gained increased attention. Here we report the inverse correlation between the protein levels of Cdk5 and p21CIP1 from cell-based and clinical analysis. Mechanistically, we identify that Cdk5 overexpression triggers the proteasome-dependent degradation of p21CIP1 through a S130 phosphorylation in a Cdk2-independent manner. Besides, the evidence from cell-based and clinical analysis shows that Cdk5 primarily regulates nuclear p21CIP1 protein degradation. S130A-p21CIP1 mutant enables to block either its protein degradation or the increase of cancer cell growth caused by Cdk5. Notably, Cdk5-triggered p21CIP1 targeting primarily appears in S-phase, while Cdk5 overexpression increases the activation of Cdk2 and its interaction with DNA polymerase δ. The in vivo results show that Cdk2 might play an important role in the downstream signaling to Cdk5. In summary, these findings suggest that Cdk5 in a high expression status promotes cancer growth by directly and rapidly releasing p21CIP1-dependent cell-cycle inhibition and subsequent Cdk2 activation, which illustrates an oncogenic role of Cdk5 potentially applied for future diagnosis and therapy. Cancer Res; 76(23); 6888-900. ©2016 AACR.
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Affiliation(s)
- Pao-Hsuan Huang
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Mei-Chih Chen
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Yu-Ting Peng
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Wei-Hsiang Kao
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Chih-Hsiang Chang
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Yun-Chi Wang
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Chih-Ho Lai
- Department of Microbiology and Immunology, Chang Gung University, Taoyuan, Taiwan
| | - Jer-Tsong Hsieh
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Jo-Hsin Wang
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Yueh-Tsung Lee
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan.,Department of Surgery, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Eugene Lin
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan.,Department of Urology, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Chia-Herng Yue
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan.,Department of Surgery, Tung's Taichung MetroHarbor Hospital, Taichung, Taiwan
| | - Hsin-Yi Wang
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan.,Department of Nuclear Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Shuen-Chi You
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Ho Lin
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan. .,Department of Biotechnology, Asia University, Taichung, Taiwan.,Department of Medical Research, China Medical University Hospital, Taichung, Taiwan.,Agricultural Biotechnology Center, National Chung Hsing University, Taichung, Taiwan.,Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung, Taiwan
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15
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Manjappa KB, Peng YT, Liou TJ, Yang DY. Pseudo three-component approach to coumarin-annulated azepines: synthesis of coumarin[3,4-b]azepines. RSC Adv 2017. [DOI: 10.1039/c7ra09289j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of coumarin-annulated azepines were synthesized via acid-catalyzed condensation of 3-amino-4-hydroxycoumarin with two equivalents of substituted acetophenones in toluene with moderate to good yields.
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Affiliation(s)
| | - Yu-Ting Peng
- Department of Chemistry
- Tunghai University
- Taichung 40704
- Taiwan
| | - Teau-Jiuan Liou
- Department of Applied English
- Chaoyang University of Technology
- Taichung 41349
- Taiwan
| | - Ding-Yah Yang
- Department of Chemistry
- Tunghai University
- Taichung 40704
- Taiwan
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Manjappa KB, Peng YT, Jhang WF, Yang DY. Microwave-promoted, catalyst-free, multi-component reaction of proline, aldehyde, 1,3-diketone: one pot synthesis of pyrrolizidines and pyrrolizinones. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.12.056] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Chen L, Peng YT, Chen FL, Tung TH. Epidemiology, management, and economic evaluation of screening of gallstone disease among type 2 diabetics: A systematic review. World J Clin Cases 2015; 3:599-606. [PMID: 26244151 PMCID: PMC4517334 DOI: 10.12998/wjcc.v3.i7.599] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 01/30/2015] [Accepted: 04/14/2015] [Indexed: 02/05/2023] Open
Abstract
The knowledge of gallstone disease (GSD) is crucial to manage this condition when organizing screening and preventive strategies and identifying the appropriated clinical therapies. Although cholecystectomy still be the gold standard treatment for patients with symptomatic GSD, expectant management could be viewed as a valid therapeutic method for this disorder. If early treatment of GSD decreases the morbidity or avoids further cholecystectomy, it may save clinical care costs in later disease periods sufficiently to offset the screening and early treatment costs. In addition, whether routine screening for GSD is worthwhile depends on whether patients are willing to pay the ultrasonography screening cost that would reduce the risk of cholecystectomy. In this review we discuss the epidemiology, management, and economic evaluation of screening of GSD among type 2 diabetics.
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Peng YT, Wu WR, Chen LR, Kuo KK, Tsai CH, Huang YT, Lan YH, Chang FR, Wu YC, Shiue YL. Upregulation of cyclin-dependent kinase inhibitors CDKN1B and CDKN1C in hepatocellular carcinoma-derived cells via goniothalamin-mediated protein stabilization and epigenetic modifications. Toxicol Rep 2015; 2:322-332. [PMID: 28962365 PMCID: PMC5598353 DOI: 10.1016/j.toxrep.2015.01.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 01/10/2015] [Accepted: 01/12/2015] [Indexed: 01/12/2023] Open
Abstract
Cell cycle deregulation is common in human hepatocellular carcinoma (HCC). To ensure proper cell cycle controlling, cyclin/cyclin-dependent kinases (CDK) complexes are tightly regulated by CDK inhibitors (CKIs) in normal cells. However, insufficient cyclin-dependent kinase inhibitor 1B (CDKN1B, also known as p27Kip1) and CDKN1C (p57Kip2) proteins are characteristics of high-risk HCC. In two HCC-derived cell lines with distinct genetic backgrounds, we identified a small natural compound, goniothalamin (GTN), serving as an inducer of CKIs. In TP53-mutated (Y220C) and retinoblastoma 1 (RB1)-positive Huh-7 cells, GTN stabilized CDKN1B protein levels by targeting the degradation of its specific E3 ubiquitin ligase (S-phase kinase-associated protein 2). Alternatively, in TP53- and RB1-negative Hep-3B cells, GTN increased CDKN1C transcription and its subsequent translation by acting as a histone deacetylase inhibitor. In both cell lines, GTN induced G0/G1 cell cycle arrest, delayed S phase entry of cells and inhibited anchorage-independent cell growth which might be attributed to the upregulation of CKIs and downregulation of several positive cell cycle regulators, including CDC28 protein kinase regulator subunit 1B, cyclin E1 and D1, cyclin-dependent kinase 2 (CDK2), CDK4, CDK6, E2F transcription factor 1 and/or transcription factor Dp-1. Therefore, GTN might represent a novel class of anticancer drug that induces CKIs through post-translational and epigenetic modifications.
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Affiliation(s)
- Yu-Ting Peng
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Wen-Ren Wu
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Lih-Ren Chen
- Division of Physiology, Livestock Research Institute, Council of Agriculture, Executive Yuan, Taiwan.,Institute of Biotechnology, National Cheng Kung University, Tainan, Taiwan.,Institute of Biotechnology, Southern Taiwan University of Technology, Tainan, Taiwan
| | - Kung-Kai Kuo
- Department of Surgery, Chung-Ho Memorial Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Cheng-Hui Tsai
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Yu-Ting Huang
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Yu-Hsuan Lan
- School of Pharmacy, China Medical University, Taichung, Taiwan
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yang-Chang Wu
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Yow-Ling Shiue
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan.,Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan.,Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University, Kaohsiung, Taiwan
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Lin YT, Chen YC, Peng YT, Chen L, Liu JH, Chen FL, Tung TH. Evidence-Based Medicine of Screening of Diabetic Retinopathy among Type 2 Diabetes: A Clinical Overview. Health (London) 2015. [DOI: 10.4236/health.2015.77103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Peng YT, Chen TY, Chen MC, Lin E, Lin H. Abstract 2121: Resveratrol regulates phospho-serine 81 androgen receptor and its stability to inhibit growth of prostate cancer cells. Cancer Res 2014. [DOI: 10.1158/1538-7445.am2014-2121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Resveratrol, a polyphenol, has been reported as a cell growth inhibitor of various types of cancer. The molecular mechanisms of resveratrol are involved in different cellular signal transductions such as anti-inflammation and anti-oxidation. Resveratrol inhibits growth of prostate cancer cells through regulating cyclin-dependent kinases, anti-apoptotic proteins, and pro-apoptotic proteins. Notably, resveratrol may down-regulate androgen receptor (AR) and its downstream gene to inhibit prostate cancer cell growth. In previous study, serine 81 phosphorylation of AR increases its protein stability and transcriptional activity, which promotes prostate cancer cell growth. The aim of this study is to investigate whether AR serine 81 phosphorylation would be a target of resveratrol in prostate cancer cells. Our data indicate that resveratrol inhibited the growth of prostate cancer cell line, LNCaP, with the decrease of AR phospho-serine 81 levels. Moreover, AR protein stability was declined by resveratrol without affecting AR mRNA expression. Indeed, resveratrol inhibited AR transcriptional activity in results of AR reporter assay and PSA level in LNCaP cells. In summary, the results suggest that resveratrol might inhibit growth of LNCaP cells, at least, via decreasing phospho-serine 81 of AR, AR protein stability, and AR transcriptional activity.
Citation Format: Yu-Ting Peng, Tzu-Yin Chen, Mei-Chih Chen, Eugene Lin, Ho Lin. Resveratrol regulates phospho-serine 81 androgen receptor and its stability to inhibit growth of prostate cancer cells. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 2121. doi:10.1158/1538-7445.AM2014-2121
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Affiliation(s)
- Yu-Ting Peng
- National Chung Hsing University, Taichung, Taiwan
| | - Tzu-Yin Chen
- National Chung Hsing University, Taichung, Taiwan
| | | | - Eugene Lin
- National Chung Hsing University, Taichung, Taiwan
| | - Ho Lin
- National Chung Hsing University, Taichung, Taiwan
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Li CF, Huang HY, Wu WR, Liang SS, Chen YL, Chen LR, Peng YT, Lee HC, Shiue YL. Clinical aggressiveness of myxofibrosarcomas associates with down-regulation of p12CDK2AP1: prognostic implication of a putative tumor suppressor that induces cell cycle arrest and apoptosis via mitochondrial pathway. Ann Surg Oncol 2014; 21 Suppl 4:S711-20. [PMID: 24889487 DOI: 10.1245/s10434-014-3825-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Indexed: 01/06/2023]
Abstract
BACKGROUND Attenuated endogenous protein levels of cyclin-dependent kinase 2 associated protein 1 (p12(CDK2AP1)) and its active homodimer p25(CDK2AP1) were found in myxofibrosarcoma-derived cell lines. Clinical and biological significances of this putative tumor suppressor in myxofibrosarcoma were studied. METHODS Plasmids carrying the CDK2AP1 gene and small hairpin RNA interference (shRNAi) targeting CDK2AP1 were transfected into NMFH-1 and/or OH931 cells to evaluate the effects on the CDK2, active caspase 3 (CASP3), cleaved-CASP8 and -CASP9 levels, cell cycle regulation, and/or apoptotic responses. Immunostaining of p12(CDK2AP1) was interpretable in 102 primary myxofibrosarcomas and correlated with clinicopathological variables, CDK2, Ki-67 and active CASP3 protein levels, and disease-specific survival. RESULTS Exogenous expression of p12(CDK2AP1) in NMFH-1 and OH931 cells significantly induced G0/G1 cell cycle arrest and down-regulated CDK2 protein level. In NMFH-1 cells, these aspects were reversed by shRNAi targeting CDK2AP1 gene. Increased active CASP3 and cleaved-CASP9, but not -CASP8, were detected after CDK2AP1 overexpression, suggesting the cellular apoptosis were induced through the mitochondrial pathway. Immunostains of p12(CDK2AP1) were aberrantly decreased in 56.9 % of cases; positively and negatively correlated with protein levels of CDK2 (p = 0.023), Ki-67 (p = 0.001) and active CASP3 (p < 0.001), respectively. Following by high histological grades, p12(CDK2AP1) down-regulation was predictive of worse disease-specific survival in univariate (p = 0.003) and multivariate (p = 0.004) analyses. CONCLUSIONS Through down-regulation of CDK2, high p12(CDK2AP1) level induced cell cycle arrest and the mitochondrial-dependent apoptotic pathway. Low p12(CDK2AP1) level represents a poor prognostic factor in patients with myxofibrosarcoma.
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Affiliation(s)
- Chien-Feng Li
- Department of Pathology, Chi Mei Medical Center, Tainan, Taiwan
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Hsu FN, Chen MC, Lin KC, Peng YT, Li PC, Lin E, Chiang MC, Hsieh JT, Lin H. Cyclin-dependent kinase 5 modulates STAT3 and androgen receptor activation through phosphorylation of Ser⁷²⁷ on STAT3 in prostate cancer cells. Am J Physiol Endocrinol Metab 2013; 305:E975-86. [PMID: 23941877 DOI: 10.1152/ajpendo.00615.2012] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Cyclin-dependent kinase 5 (Cdk5) is known to regulate prostate cancer metastasis. Our previous results indicated that Cdk5 activates androgen receptor (AR) and supports prostate cancer growth. We also found that STAT3 is a target of Cdk5 in promoting thyroid cancer cell growth, whereas STAT3 may play a role as a regulator to AR activation under cytokine control. In this study, we investigated the regulation of Cdk5 and its activator p35 on STAT3/AR signaling in prostate cancer cells. Our results show that Cdk5 biochemically interacts with STAT3 and that this interaction depends on Cdk5 activation in prostate cancer cells. The phosphorylation of STAT3 at Ser⁷²⁷ (p-Ser⁷²⁷-STAT3) is regulated by Cdk5 in cells and xenograft tumors. The mutant of STAT3 S727A reduces its interaction with Cdk5. We further show that the nuclear distribution of p-Ser⁷²⁷-STAT3 and the expression of STAT3-regulated genes (junB, c-fos, c-myc, and survivin) are regulated by Cdk5 activation. STAT3 mutant does not further decrease cell proliferation upon Cdk5 inhibition, which implies that the role of STAT3 regulated by Cdk5 correlates to cell proliferation control. Interestingly, Cdk5 may regulate the interaction between STAT3 and AR through phosphorylation of Ser⁷²⁷-STAT3 and therefore upregulate AR protein stability and transactivation. Correspondingly, clinical evidence shows that the level of p-Ser⁷²⁷-STAT3 is significantly correlated with Gleason score and the levels of upstream regulators (Cdk5 and p35) as well as downstream protein (AR). In conclusion, this study demonstrates that Cdk5 regulates STAT3 activation through Ser⁷²⁷ phosphorylation and further promotes AR activation by protein-protein interaction in prostate cancer cells.
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Affiliation(s)
- Fu-Ning Hsu
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
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Chien MH, Yeh CB, Li YC, Wei LH, Chang JH, Peng YT, Yang SF, Kuo WH. Relationship of interleukin-8 gene polymorphisms with hepatocellular carcinoma susceptibility and pathological development. J Surg Oncol 2011; 104:798-803. [PMID: 21780129 DOI: 10.1002/jso.22037] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2011] [Accepted: 06/27/2011] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND OBJECTIVES Hepatocellular carcinoma (HCC) is one of the most frequent malignant neoplasms worldwide, and the second leading cause of death from cancer in Taiwan. Interleukin-8 (IL-8) is an angiogenic chemokine with important roles in the development and progression of many human malignancies including HCC. This study investigates the effects of single-nucleotide polymorphisms (SNPs) in the IL-8 gene on the susceptibility and clinicopathological characteristics of HCC. METHODS One hundred thirty-one HCC patients and 340 control subjects were analyzed for four IL-8 SNPs (-251 T/A, +781 C/T, +1633 C/T, and +2767 A/T) using PCR-RFLP genotyping analysis. RESULTS After adjusting for other confounders, results show that individuals with the IL-8 +781 T/T polymorphic genotype had a significantly lower risk of developing HCC than those with the wild-type (C/C) genotype (AOR = 0.346; 95% CI: 0.132-0.909). Multiple regression analysis showed that the presence of T/A or A/A at IL-8 -251 may indicate higher potential risk of hepatitis B infection (AOR = 2.847; 95% CI: 1.083-8.656). Additionally, these four IL-8 SNPs did not associate with liver-related clinicopathological markers in serum. CONCLUSIONS Genetic polymorphism at IL-8 +781 is an important factor in determining susceptibility to HCC in the Taiwanese population.
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Peng YT, Lo KF, Juang YJ. Constructing a superhydrophobic surface on polydimethylsiloxane via spin coating and vapor-liquid sol-gel process. Langmuir 2010; 26:5167-5171. [PMID: 20020726 DOI: 10.1021/la903646h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In this study, a superhydrophobic surface on polydimethylsiloxane (PDMS) substrate was constructed via the proposed vapor-liquid sol-gel process in conjunction with spin coating of dodecyltrichlorosilane (DTS). Unlike the conventional sol-gel process where the reaction takes place in the liquid phase, layers of silica (SiO(2)) particles were formed through the reaction between the reactant spin-coated on the PDMS surface and vapor of the acid solution. This led to the SiO(2) particles inlaid on the PDMS surface. Followed by subsequent spin coating of DTS solution, the wrinkle-like structure was formed, and the static contact angle of the water droplet on the surface could reach 162 degrees with 2 degrees sliding angle and less than 5 degrees contact angle hysteresis. The effect of layers of SiO(2) particles, concentrations of DTS solution and surface topography on superhydrophobicity of the surface is discussed.
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Affiliation(s)
- Yu-Ting Peng
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan 70101
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Peng YT, Yang ZQ, Jia ZC, Lin WH. [The lymphoepithelial lesion in salivary glands:report of 25 cases]. Shanghai Kou Qiang Yi Xue 1997; 6:213-5. [PMID: 15160197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
This paper reported the results of the clinical observation and long-term follow-up of twenty-five cases of lymphoepithelial lesion in salivary glands.It evaluated the name and character of this disease and investigated correlation between Mikulicz syndrome and Sjogren syndrome.Lymphoepithelial lesion were a course of the benign disease,and had character similar as tumors.It was liable to be diagnosed erroneously and should be treated according to principle of the tumor therapy in the salivary gland.
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Affiliation(s)
- Y T Peng
- Departmet Of Oral and Maxillofacial Surgery,Changhai Hospital,Second Military Medical University. Shanghai 200433,China
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Peng YT, Shum AY, Tasi TH, Lin LC, Chen CF. High-performance liquid chromatography of the quinazolinocarboline alkaloid dehydroevodiamine. J Chromatogr 1993; 617:87-93. [PMID: 8376542 DOI: 10.1016/0378-4347(93)80425-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A high-performance liquid chromatographic method has been developed for the determination of dehydroevodiamine (DeHE), an active principle from Evodia fruit. Plasma was denatured with acetonitrile and centrifuged, the supernatant was separated and blown dry, and the residue was redissolved in water. Bile was acidified with perchloric acid and centrifuged to yield the supernatant. Aliquots were used for analysis. Elution was isocratic on a reversed-phase column with acetonitrile-water-phosphoric acid (64:35:0.8, v/v) adjusted to pH 3.5 as the mobile phase. Ultraviolet detection was at a wavelength of 367 nm. The detection limits were 2 ng/ml for plasma and 10 ng/ml for bile. The intra-day and inter-day variations were mostly below 10%.
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Affiliation(s)
- Y T Peng
- National Research Institute of Chinese Medicine, Taipei, Taiwan
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