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Chen Y, Zhao R, Huang Z, Chu C, Xiao Y, Hu X, Wang X. A small-scale external quality assessment for PCR detection of group B streptococcus in China. Clin Chim Acta 2024; 553:117733. [PMID: 38128816 DOI: 10.1016/j.cca.2023.117733] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 12/14/2023] [Accepted: 12/18/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Group B streptococcus (GBS) is considered a leading cause of maternal and infant morbidity and mortality. Molecular diagnosis is a routinely used approach for GBS screening to protect pregnant women and prevent early-onset GBS neonatal disease. The objective of this study was to identify issues and guarantee the dependability of GBS molecular diagnosis by an external quality assessment (EQA) scheme. METHODS The EQA panel comprised eight samples spiked with 10-fold dilutions of GBS suspension (20-2,000,000 copies/mL), and 2 negative control samples. The panels were coded randomly and distributed to participating laboratories for GBS detection. RESULTS In total, 44 participating laboratories submitted results with eight commercial GBS PCR assays and one in-house assay. Among them, 36 obtained an acceptable or higher performance score, while 8 required improvement. Among the 440 results returned, 62 (14.1 %) were incorrect, including 5 false positives and 57 false negatives. CONCLUSIONS Our small-scale EQA showed that most participating laboratories have reliable diagnostic capacities for GBS PCR detection. Nonetheless, further improvements in the detection performance of some laboratories are required, particularly with low-concentration samples. Our survey also reinforces the use of EQA as an essential tool to evaluate the overall proficiency of clinical laboratories.
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Affiliation(s)
- Yingwei Chen
- Department of Quality Control Material R&D, Shanghai Center for Clinical Laboratory, Shanghai, China
| | - Ran Zhao
- Department of Quality Control Material R&D, Shanghai Center for Clinical Laboratory, Shanghai, China
| | - Zhongqiang Huang
- Department of Molecular Biology, Shanghai Center for Clinical Laboratory, Shanghai, China
| | - Chengxiang Chu
- Department of Quality Control Material R&D, Shanghai Center for Clinical Laboratory, Shanghai, China
| | - Yanqun Xiao
- Department of Molecular Biology, Shanghai Center for Clinical Laboratory, Shanghai, China
| | - Xiaobo Hu
- Department of Quality Control Material R&D, Shanghai Center for Clinical Laboratory, Shanghai, China; Department of Molecular Biology, Shanghai Center for Clinical Laboratory, Shanghai, China.
| | - Xueliang Wang
- Department of Quality Control Material R&D, Shanghai Center for Clinical Laboratory, Shanghai, China; Department of Molecular Biology, Shanghai Center for Clinical Laboratory, Shanghai, China.
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Zhou J, Zou C, Huo D, Chu C, Liu S, Yang M, Zhang S, Wang X, Hou C. Synthesis of N,Si co-doped carbon dots to establish a fluorescent sensor for Hg(II) detection with triple signal output. Anal Methods 2023; 15:5181-5189. [PMID: 37767981 DOI: 10.1039/d3ay01344h] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
Mercury is a heavy metal with extreme toxicity. Thus, it is of significance to develop an effective method for mercury ion detection with high performance. In this study, carbon dots doped with nitrogen and silicon (N,Si/CQDs) were successfully prepared from folic acid and N-[3-(trimethoxysily)propyl]-ethylenediamine. The N,Si/CQDs show an obvious cyan fluorescence of 460 nm with the radiation of 350 nm. The existence of mercury ions induces the fluorescence quenching of N,Si/CQDs due to photoinduced electron transfer, which was applied for the sensitive sensing of Hg(II). More importantly, the practical application of the N,Si/CQD probe was confirmed by measurements of Hg(II) in real samples of lake water, sorghum and rice. In addition, the N,Si/CQD nanoprobe was integrated on a sensing strip for specific detection of Hg(II). Quantitative measurement of Hg(II) was realized by the outstanding linearity between the diameter (or fluorescence intensity) of the fluorescence quenching ring and the concentration of mercury ions. The sensor shows potential for rapid detection with a triple signal readout on-site and represents a larger step towards practical applications.
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Affiliation(s)
- Jun Zhou
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, Bioengineering College of Chongqing University, Chongqing 400044, PR China.
- National Engineering Research Center of Solid-State Brewing, Luzhou Laojiao Group Co. Ltd., Luzhou 646000, PR China.
| | - Chengyue Zou
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, Bioengineering College of Chongqing University, Chongqing 400044, PR China.
| | - Danqun Huo
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, Bioengineering College of Chongqing University, Chongqing 400044, PR China.
| | - Chengxiang Chu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, Bioengineering College of Chongqing University, Chongqing 400044, PR China.
| | - Shasha Liu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, Bioengineering College of Chongqing University, Chongqing 400044, PR China.
| | - Mei Yang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, Bioengineering College of Chongqing University, Chongqing 400044, PR China.
| | - Suyi Zhang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, Bioengineering College of Chongqing University, Chongqing 400044, PR China.
- National Engineering Research Center of Solid-State Brewing, Luzhou Laojiao Group Co. Ltd., Luzhou 646000, PR China.
| | - Xianfeng Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, Bioengineering College of Chongqing University, Chongqing 400044, PR China.
- Wuxi School of Medicine, Jiangnan University, Wuxi 214122, PR China.
| | - Changjun Hou
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, Bioengineering College of Chongqing University, Chongqing 400044, PR China.
- Chongqing Key Laboratory of Bio-perception & Intelligent Information Processing, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, 400044, PR China
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Huo L, Chu C, Jiang X, Zheng S, Zhang P, Zhou R, Chen N, Guo J, Qiu B, Liu H. A Pilot Trial of Consolidation Bevacizumab after Hypo-Fractionated Concurrent Chemoradiotherapy in Patients with Unresectable Locally Advanced Non-Squamous Non-Small-Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e38. [PMID: 37785285 DOI: 10.1016/j.ijrobp.2023.06.731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) To assess the feasibility of adding bevacizumab consolidation into hypo-fractionated concurrent chemoradiotherapy (hypo-CCRT) in patients with unresectable locally advanced non-squamous non-small cell lung cancer (LA-NS-NSCLC). MATERIALS/METHODS Eligible patients were treated with hypo-RT (40 Gy in 10 fractions) followed by hypo-boost (24-28 Gy in 6-7 fractions) combined with concurrent weekly chemotherapy. Patients completed the hypo-CCRT without≥G2 toxicities then received consolidation bevacizumab every 3 weeks for up to 1 year, or disease progression or unacceptable treatment related toxicities. The primary endpoint was the risk of G4 or higher hemorrhage. The secondary endpoint was progression-free survival (PFS), overall survival (OS), locoregional failure-free survival (LRFS), distant metastasis-free survival (DMFS) and objective response rate (ORR). All time-to-event endpoints (OS, PFS, LRFS and DMFS) were measured from the start of radiotherapy. RESULTS From December 2017 to July 2020, a total of 27 patients were analyzed with a median follow-up duration of 28.0 months. One patient (3.7%) developed G5 hemorrhage during bevacizumab consolidation. Besides, there were 7 patients (25.9%) had G3 cough and 3 patients (11.1%) had G3 pneumonitis. The ORR was 92.6% of the whole cohort. The median OS was 37.0 months (95% confidence interval, 8.9-65.1 months), the median PFS was 16.0 months (95% confidence interval, 14.0-18.0 months), the median LRFS was not reached and the median DMFS was 18.0 months. CONCLUSION This pilot study met its goal of demonstrating the tolerability of consolidation bevacizumab after hypo-CCRT. Further investigation of antiangiogenic and immunotherapy combinations in LA-NSCLC is warranted while G3 respiratory toxicities is worth considering.
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Affiliation(s)
- L Huo
- Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - C Chu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - X Jiang
- Sun Yat-sen University Cancer Center, Guangzhou, China
| | - S Zheng
- Sun Yat-sen University Cancer Center, Guangzhou, China
| | - P Zhang
- Sun Yat-sen University Cancer Center, Guangzhou, China
| | - R Zhou
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - N Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - J Guo
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - B Qiu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - H Liu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
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Hoffman KE, Smith BD, Singh P, Qiao W, Bloom ES, Chu C, Clemens M, Ehlers R, Rosa H, Joyner MM, Largo R, Mitchell MP, Tamirisa N, Villa M, Woodward WA, Kuerer HM, Schaverien M. Prospective Clinical Trial of Premastectomy Radiotherapy Followed by Immediate Breast Reconstruction for Operable Breast Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e179-e180. [PMID: 37784797 DOI: 10.1016/j.ijrobp.2023.06.1030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Radiation delivered prior to mastectomy and autologous breast reconstruction may avoid the adverse effects of radiation on autologous donor tissue while providing the psychologic benefit of immediate reconstruction. We aimed to study the feasibility of premastectomy radiation therapy (PreMRT). MATERIALS/METHODS A total of 50 women enrolled in a prospective trial of preoperative radiation to the breast and regional nodes followed by mastectomy with axillary evaluation and immediate breast reconstruction. The trial was embedded in a randomized trial of hypofractionated versus conventionally fractionated regional nodal irradiation (NCT02912312). Eligible women enrolled from 2018-22, had cT0-T3 N0-3 breast cancer, and a pre-operative recommendation for radiation. The primary outcome was frequency of complete free flap loss. Mastectomy skin flap necrosis was assessed by validated SKIN grading score. The Satisfaction with Breast Cosmetic Outcomes Scales evaluated patient satisfaction with cosmetic result. Descriptive statistics and 95% exact confidence intervals were calculated. RESULTS One patient withdrew prior to any treatment and one elected not to have breast reconstruction. Median age of the 48 women completing PreMRT and reconstruction was 48 [range 31-72]. Most had ER-positive HER2-negative (77%), cT3 (54%) or cT2 (38%), cN1 (79%) disease and received 50 Gy in 25 fractions (n = 24) or 40.05 Gy in 15 fractions (n = 23). Four received 10-16 Gy internal mammary or infraclavicular boost. 35% VMAT, 48% matched photon-electron, and 17% partially-wide-tangent technique. Median time to surgery was 23 days [14-85]. Skin reaction delayed surgery for one patient. Most had skin-sparing mastectomy (92%) and axillary lymph node dissection (67%). 12 surgeons performed the reconstructions: 35 deep inferior epigastric perforators; 4 profunda artery perforator; 2 muscle-sparing transverse rectus abdominis myocutaneous; 1 latissimus dorsi (LD); 2 LD/implant; 2 LD/tissue expander (TE); and 2 subpectoral (SP) TE. There were no complete flap losses. Two patients (4.4%, 95% CI 0.5%-14.8%) with free flaps had partial flap loss with revision surgery. Both patients with SP TEs had infections and unplanned reoperation. The protocol was subsequently amended to not allow SP TE reconstruction. Eight patients had skin flap necrosis: 5 partial and 3 full thickness necrosis; only 1 required operative debridement. Seven had pathologic complete response. At six months 19/31 (61%) reported being "quite a bit" or "very much" satisfied with how they looked in the mirror clothed. There are no recurrences with a median follow up of 33 months [5-119]. CONCLUSION Radiation treatment of the breast and lymph node basins prior to mastectomy with immediate autologous reconstruction is feasible. There were no autologous flap loses and complication rates are similar to reconstruction after radiation series. This promising strategy reduces time to autologous reconstruction and merits further prospective study.
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Affiliation(s)
- K E Hoffman
- Department of Breast Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - B D Smith
- Department of Breast Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - P Singh
- Department of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - W Qiao
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - E S Bloom
- Department of Breast Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - C Chu
- Department of Plastic Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - M Clemens
- Department of Plastic Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - R Ehlers
- Department of Plastic Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - H Rosa
- Department of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - M M Joyner
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - R Largo
- Department of Plastic Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - M P Mitchell
- Department of Breast Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - N Tamirisa
- Department of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - M Villa
- Department of Plastic Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - W A Woodward
- Department of Breast Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - H M Kuerer
- Department of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - M Schaverien
- Department of Plastic Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX
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Rogers BG, Chan PA, Sutten-Coats C, Zanowick-Marr A, Patel RR, Mena L, Goedel WC, Chu C, Silva E, Galipeau D, Arnold T, Gomillia C, Curoe K, Villalobos J, Underwood A, Sosnowy C, Nunn AS. Perspectives on long-acting formulations of pre-exposure prophylaxis (PrEP) among men who have sex with men who are non-adherent to daily oral PrEP in the United States. BMC Public Health 2023; 23:1643. [PMID: 37641018 PMCID: PMC10463714 DOI: 10.1186/s12889-023-16382-4] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 07/25/2023] [Indexed: 08/31/2023] Open
Abstract
INTRODUCTION Pre-exposure prophylaxis (PrEP) persistence among men who have sex with men (MSM) in real world clinical settings for HIV prevention is suboptimal. New longer-acting formulations of PrEP are becoming available, including injectables, subdermal implants, and other oral medications. These longer-acting formulations have the potential to improve retention among those who have challenges remaining adherent to daily oral PrEP. METHODS We interviewed 49 MSM who had initiated but discontinued oral PrEP at three diverse clinics across the United States. We examined participants' perspectives about long-acting PrEP formulations and how long-acting options could affect PrEP use using thematic analysis. RESULTS Participants were not very knowledgeable about long-acting formulations of PrEP but were open to learning about them and considering use. Participants were concerned about safety and efficacy of products given that they were still newer and/or in development. Finally, participants had clear preferences for oral pills, injectables, and then subdermal implants and were most interested in options that reduced the number of visits to the clinic. CONCLUSION Long-acting formulations of PrEP are acceptable to MSM with suboptimal PrEP persistence and have the potential to improve PrEP persistence. However, many felt they needed more information on safety, efficacy, and use to consider these options. As these long-acting formulations are implemented, public health campaigns and clinical interventions to encourage may maximize uptake particularly among those who are not currently adherent to daily oral PrEP.
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Affiliation(s)
- Brooke G Rogers
- Department of Medicine, Division of Infectious Diseases,, Warren Alpert Medical School of Brown University, Providence, 02903, USA.
- Department of Psychiatry and Human Behavior, Warren Alpert Medical School of Brown University, Providence, 02903, USA.
| | - P A Chan
- Department of Medicine, Division of Infectious Diseases,, Warren Alpert Medical School of Brown University, Providence, 02903, USA
- Department of Social and Behavioral Sciences, Brown University School of Public Health, Rhode Island, Providence, 02903, USA
| | - C Sutten-Coats
- Department of Social and Behavioral Sciences, Brown University School of Public Health, Rhode Island, Providence, 02903, USA
| | - A Zanowick-Marr
- Department of Medicine, Division of Infectious Diseases,, Warren Alpert Medical School of Brown University, Providence, 02903, USA
| | - R R Patel
- Department of Infectious Diseases, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - L Mena
- Department of Population Health Science, University of Mississippi Medical Center, Jackson, MS, 39216, USA
- Department of Medicine, Division of Infectious Diseases, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - W C Goedel
- Department of Epidemiology, Brown University School of Public Health, Rhode Island, Providence, 02903, USA
| | - C Chu
- Department of Medicine, Division of Infectious Diseases,, Warren Alpert Medical School of Brown University, Providence, 02903, USA
| | - E Silva
- Department of Medicine, Division of Infectious Diseases,, Warren Alpert Medical School of Brown University, Providence, 02903, USA
| | - D Galipeau
- Department of Medicine, Division of Infectious Diseases,, Warren Alpert Medical School of Brown University, Providence, 02903, USA
| | - T Arnold
- Department of Psychiatry and Human Behavior, Warren Alpert Medical School of Brown University, Providence, 02903, USA
| | - C Gomillia
- Department of Medicine, Division of Infectious Diseases, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - K Curoe
- Department of Infectious Diseases, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - J Villalobos
- Department of Infectious Diseases, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - A Underwood
- Department of Infectious Diseases, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - C Sosnowy
- Department of Medicine, Division of Infectious Diseases,, Warren Alpert Medical School of Brown University, Providence, 02903, USA
| | - Amy S Nunn
- Department of Medicine, Division of Infectious Diseases,, Warren Alpert Medical School of Brown University, Providence, 02903, USA.
- Department of Social and Behavioral Sciences, Brown University School of Public Health, Rhode Island, Providence, 02903, USA.
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Chu C, Zou C, Qiu Y, Huo D, Deng Y, Wang X, Xu G, Hou C. Synthesis of two nitrogen-doped carbon quantum dots to construct fluorescence probes for sensitive Hg 2+ detection with dual signal output. Dalton Trans 2023. [PMID: 37222537 DOI: 10.1039/d3dt00663h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The rapid and sensitive detection of heavy metal ions is of great importance in food safety and for the environment. Therefore, two novel probes, M-CQDs and P-CQDs, based on carbon quantum dots were utilized to detect Hg2+ based on fluorescence resonance energy transfer and photoinduced electron transfer mechanisms. The M-CQDs were prepared from folic acid and m-phenylenediamine (mPDA) using a hydrothermal method. Similarly, the novel P-CQDs were obtained according to the same synthetic procedure used to create M-CQDs except the mPDA was replaced with p-phenylenediamine (pPDA). Upon the addition of Hg2+ to the M-CQDs probe, the fluorescence intensity reduced significantly with a linear concentration range between 5 and 200 nM. The limit of detection (LOD) was calculated to be 2.15 nM. On the contrary, the fluorescence intensity of the P-CQDs was enhanced greatly after the addition of Hg2+. The Hg2+ detection was realized with a wide linear range from 100 to 5000 nM and the LOD was calculated to be as low as 52.5 nM. The fluorescence "quenching" and "enhancing" effect exhibited by the M-CQDs and P-CQDs, respectively, is due to the different distribution of -NH2 in the mPDA and pPDA precursors. Notably, paper-based chips modified with M/P-CQDs were established for visual Hg2+ sensing, demonstrating the possibility for real-time detection of Hg2+. Moreover, the practicality of this system was confirmed through the successful measurement of Hg2+ in tap water and river water samples.
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Affiliation(s)
- Chengxiang Chu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, PR China
- Shanghai Center for Clinical Laboratory, Shanghai 200126, PR China
| | - Chengyue Zou
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, PR China
| | - Yue Qiu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, PR China
| | - Danqun Huo
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, PR China
| | - Yuanyi Deng
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, PR China
| | - Xianfeng Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, PR China
| | - Guoren Xu
- State Key Laboratory of Urban Water Resources & Environment, Harbin Institute of Technology, Harbin 150090, PR China.
| | - Changjun Hou
- State Key Laboratory of Urban Water Resources & Environment, Harbin Institute of Technology, Harbin 150090, PR China.
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Chu C, Wang X, Deng Y, Ma Y, Zou C, Yang M, Luo H, Huo D, Hou C. Discrimination of Chinese green tea according to tea polyphenols using fluorescence sensor array based on Tb (III) and Eu (III) doped Zr (IV) metal-organic frameworks. Spectrochim Acta A Mol Biomol Spectrosc 2023; 292:122380. [PMID: 36736046 DOI: 10.1016/j.saa.2023.122380] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 12/24/2022] [Accepted: 01/13/2023] [Indexed: 06/18/2023]
Abstract
A facile and rapid fluorescence sensor array based on Tb (III) and Eu (III) doped Zr (IV) metal-organic frameworks was proposed for Chinese green tea discrimination. According to large porosity of Tb@UiO-66-(COOH)2 and Eu@UiO-66-(COOH)2, phenolic hydroxyl groups of tea polyphenols could coordinate with free carboxylic acid groups and was captured into the pores, which led to the disturbance of electronic structure of ligand and inhibited the energy transfer efficiency from ligand to Tb (III) and Eu (III) center, causing the fluorescence quenching effect. Based on Hierarchy Cluster Analysis and Linear Discrimination Analysis, the fluorescence sensor array was employed for successful tea polyphenols classification through the analysis of different fluorescence quenching effect to tea polyphenols. Green tea samples within different categories and grades were also successfully discriminated using this assay according to tea polyphenols, providing a new method for Chinese green tea identification.
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Affiliation(s)
- Chengxiang Chu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, PR China
| | - Xianfeng Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, PR China
| | - Yuanyi Deng
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, PR China
| | - Yi Ma
- Liquor Making Biology Technology and Application of Key Laboratory of Sichuan Province, College of Bioengineering, Sichuan University of Science and Engineering, Zigong 643000, PR China
| | - Chengyue Zou
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, PR China
| | - Mei Yang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, PR China
| | - Huibo Luo
- Liquor Making Biology Technology and Application of Key Laboratory of Sichuan Province, College of Bioengineering, Sichuan University of Science and Engineering, Zigong 643000, PR China
| | - Danqun Huo
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, PR China; Chongqing Key Laboratory of Bio-perception & Intelligent Information Processing, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, PR China.
| | - Changjun Hou
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, PR China; Chongqing Key Laboratory of Bio-perception & Intelligent Information Processing, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, PR China.
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Askew A, Agu I, Margulies S, Schroeder M, LeCroy K, Geller E, Willis-Gray M, Chu C, Connolly A, Wu J. Postoperative patient removal of urinary catheters: a randomized controlled trial. Am J Obstet Gynecol 2023. [DOI: 10.1016/j.ajog.2022.12.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
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Agu I, Das R, Geller E, Carey E, Chu C. 8571 Prevalence of Baseline Lower Urinary Tract Symptoms in Women Planning to Undergo Hysterectomy for Uterine Fibroids. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Wainwright C, McColley S, McNally P, Powers M, Ratjen F, Rayment J, Retsch-Bogart G, Roesch E, Ahluwalia N, Chin A, Chu C, Lu M, Menon P, Moskowitz S, Waltz D, Weinstock T, Xuan F, Zelazoski L, Davies J. 163 Long-term safety and efficacy of elexacaftor/tezacaftor/ivacaftor in children 6 years and older with cystic fibrosis and at least one F508del alleles: 96-week interim results from an open-label extension study. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00854-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Rogers BG, Sosnowy C, Zanowick-Marr A, Chan PA, Mena LA, Patel RR, Goedel WC, Arnold T, Chu C, Galipeau D, Montgomery MC, Curoe K, Underwood A, Villalobos J, Gomillia C, Nunn AS. Facilitators for retaining men who have sex with men in pre-exposure prophylaxis care in real world clinic settings within the United States. BMC Infect Dis 2022; 22:673. [PMID: 35931953 PMCID: PMC9354303 DOI: 10.1186/s12879-022-07658-y] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 07/29/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Pre-exposure prophylaxis (PrEP) can significantly reduce HIV acquisition especially among communities with high HIV prevalence, including men who have sex with men (MSM). Much research has been finding suboptimal PrEP persistence; however, few studies examine factors that enhance PrEP persistence in real-world settings. METHODS We interviewed 33 patients who identified as MSM at three different PrEP clinics in three regions of the U.S. (Northeast, South, Midwest). Participants were eligible if they took PrEP and had been retained in care for a minimum of 6 months. Interviews explored social, structural, clinic-level and behavioral factors that influencing PrEP persistence. RESULTS Through thematic analysis we identified the following factors as promoting PrEP persistence: (1) navigation to reduce out-of-pocket costs of PrEP (structural), (2) social norms that support PrEP use (social), (3) access to LGBTQ + affirming medical providers (clinical), (4) medication as part of a daily routine (behavioral), and (5) facilitation of sexual health agency (belief). DISCUSSION In this sample, persistence in PrEP care was associated with structural and social supports as well as a high level of perceived internal control over protecting their health by taking PrEP. Patients might benefit from increased access, LGBTQ + affirming medical providers, and communications that emphasize PrEP can promote sexual health.
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Affiliation(s)
- Brooke G. Rogers
- grid.40263.330000 0004 1936 9094Department of Medicine, Division of Infectious Diseases, Warren Alpert Medical School, Brown University, Providence, RI 02903 USA ,grid.40263.330000 0004 1936 9094Department of Psychiatry and Human Behavior, Warren Alpert Medical School of Brown University, Providence, RI 02903 USA
| | - C. Sosnowy
- grid.40263.330000 0004 1936 9094Department of Medicine, Division of Infectious Diseases, Warren Alpert Medical School, Brown University, Providence, RI 02903 USA
| | - A. Zanowick-Marr
- grid.40263.330000 0004 1936 9094Department of Medicine, Division of Infectious Diseases, Warren Alpert Medical School, Brown University, Providence, RI 02903 USA
| | - P. A. Chan
- grid.40263.330000 0004 1936 9094Department of Medicine, Division of Infectious Diseases, Warren Alpert Medical School, Brown University, Providence, RI 02903 USA ,grid.40263.330000 0004 1936 9094Department of Social and Behavioral Sciences, Brown University School of Public Health, Providence, RI 02903 USA
| | - L. A. Mena
- grid.410721.10000 0004 1937 0407Department of Population Health Science, University of Mississippi Medical Center, Jackson, MS 39216 USA ,grid.410721.10000 0004 1937 0407Department of Medicine, Division of Infectious Diseases, University of Mississippi Medical Center, Jackson, MS 39216 USA
| | - R. R. Patel
- grid.4367.60000 0001 2355 7002Department of Infectious Diseases, Washington University School of Medicine, St. Louis, MO 63110 USA
| | - W. C. Goedel
- grid.40263.330000 0004 1936 9094Department of Epidemiology, Brown University School of Public Health, Providence, RI 02903 USA
| | - T. Arnold
- grid.40263.330000 0004 1936 9094Department of Psychiatry and Human Behavior, Warren Alpert Medical School of Brown University, Providence, RI 02903 USA
| | - C. Chu
- grid.40263.330000 0004 1936 9094Department of Medicine, Division of Infectious Diseases, Warren Alpert Medical School, Brown University, Providence, RI 02903 USA
| | - D. Galipeau
- grid.40263.330000 0004 1936 9094Department of Medicine, Division of Infectious Diseases, Warren Alpert Medical School, Brown University, Providence, RI 02903 USA
| | - M. C. Montgomery
- grid.40263.330000 0004 1936 9094Department of Medicine, Division of Infectious Diseases, Warren Alpert Medical School, Brown University, Providence, RI 02903 USA
| | - K. Curoe
- grid.4367.60000 0001 2355 7002Department of Infectious Diseases, Washington University School of Medicine, St. Louis, MO 63110 USA
| | - A. Underwood
- grid.4367.60000 0001 2355 7002Department of Infectious Diseases, Washington University School of Medicine, St. Louis, MO 63110 USA
| | - J. Villalobos
- grid.4367.60000 0001 2355 7002Department of Infectious Diseases, Washington University School of Medicine, St. Louis, MO 63110 USA
| | - C. Gomillia
- grid.410721.10000 0004 1937 0407Department of Population Health Science, University of Mississippi Medical Center, Jackson, MS 39216 USA
| | - A. S. Nunn
- grid.40263.330000 0004 1936 9094Department of Social and Behavioral Sciences, Brown University School of Public Health, Providence, RI 02903 USA
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Liu Y, Chen Y, Chu C, Qu Y, Man Y. Use of reactive soft tissue for primary wound closure during immediate implant placement: a two-year retrospective study. Int J Oral Maxillofac Surg 2022; 51:1085-1092. [DOI: 10.1016/j.ijom.2022.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 11/20/2021] [Accepted: 02/02/2022] [Indexed: 11/27/2022]
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Xie LP, Zhao L, Chu C, He L, Liang XC, Sun SN, Zhao QM, Wang F, Cao YY, Lin YX, Zeng ZQ, Wu L, Huang GY, Liu F. [Retrospective analysis of infliximab in the treatment of Kawasaki disease]. Zhonghua Er Ke Za Zhi 2022; 60:14-19. [PMID: 34986617 DOI: 10.3760/cma.j.cn112140-20210713-00576] [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 efficacy and safety of infliximab (IFX) therapy for children with Kawasaki disease. Methods: Sixty-eight children with Kawasaki disease who received IFX therapy in Children's Hospital of Fudan University from January 2014 to April 2021 were enrolled. The indications for IFX administration, changes in laboratory parameters before and after IFX administration, response rate, drug adverse events and complications and outcomes of coronary artery aneurysms (CAA) were retrospectively analyzed. Comparisons between groups were performed with unpaired Student t test or Mann-Whitney U test or chi-square test. Results: Among 68 children with Kawasaki disease, 52 (76%) were males and 16 (24%) were females. The age of onset was 2.1 (0.5, 3.8) years. IFX was administered to: (1) 35 children (51%) with persistent fever who did not respond to intravenous immunoglobulin (IVIG) or steroids, 28 of the 35 children (80%) developed CAA before IFX therapy; (2) 32 children (47%) with continuous progression of CAA; (3) 1 child with persistent arthritis. In all cases, IFX was administered as an additional treatment (the time from the onset of illness to IFX therapy was 21 (15, 30) days) which consisted of second line therapy in 20 (29%), third line therapy in 20 (29%), and fourth (or more) line therapy in 28 (41%). C-reactive protein (8 (4, 15) vs. 16 (8, 43) mg/L, Z=-3.38, P=0.001), serum amyloid protein A (17 (10, 42) vs. 88 (11, 327) mg/L, Z=-2.36, P=0.018) and the percentage of neutrophils (0.39±0.20 vs. 0.49±0.21, t=2.63, P=0.010) decreased significantly after IFX administration. Fourteen children (21%) did not respond to IFX and received additional therapies mainly including steroids and cyclophosphamide. There was no significant difference in gender, age at IFX administration, time from the onset of illness to IFX administration, the maximum coronary Z value before IFX administration, and the incidence of systemic aneurysms between IFX-sensitive group and IFX-resistant group (all P>0.05). Infections occurred in 11 cases (16%) after IFX administration, including respiratory tract, digestive tract, urinary tract, skin and oral infections. One case had Calmette-Guérin bacillus-related adverse reactions 2 months after IFX administration. All of these adverse events were cured successfully. One child died of CAA rupture, 6 children were lost to follow up, the remaining 61 children were followed up for 6 (4, 15) months. No CAA occurred in 7 children before and after IFX treatment, while CAA occurred in 54 children before IFX treatment. CAA regressed in 23 (43%) children at the last follow-up, and the diameter of coronary artery recovered to normal in 10 children. Conclusion: IFX is an effective and safe therapeutic choice for children with Kawasaki disease who are refractory to IVIG or steroids therapy or with continuous progression of CAA.
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Affiliation(s)
- L P Xie
- Heart Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - L Zhao
- Heart Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - C Chu
- Heart Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - L He
- Heart Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - X C Liang
- Heart Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - S N Sun
- Heart Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Q M Zhao
- Heart Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - F Wang
- Heart Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Y Y Cao
- Heart Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Y X Lin
- Heart Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Z Q Zeng
- Heart Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - L Wu
- Heart Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - G Y Huang
- Heart Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - F Liu
- Heart Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
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Xi Y, Qiu B, Li Y, Xie X, Liu F, Wu L, Liang T, Li L, Feng Y, Guo J, Wang D, Chu C, Zeng Y, Yang L, Zhang J, Wang J, Chen M, Xue L, Ding Y, Wu Q, Liu H. Diagnostic Signatures for Lung Cancer by Gut Microbiome and Urine Metabolomics Profiling. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Chen N, Qiu B, Zhou Y, Luo Y, Chu C, Li Q, Wang B, Li C, Jiang H, Liu F, Wang D, Huang X, Xiong M, Liu H. Radiomic Features of Tumor and Tumor Organismal Environment in Locally Advanced Non-Small Cell Lung Cancer Treated With Concurrent Chemoradiotherapy: A Retrospective Analysis of Survival Prediction. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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16
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Wang X, Chen X, Chu C, Deng Y, Yang M, Huo D, Xu F, Hou C, Lv J. Naked-eye detection of site-specific ssRNA and ssDNA using PAMmer-assisted CRISPR/Cas9 coupling with exponential amplification reaction. Talanta 2021; 233:122554. [PMID: 34215057 DOI: 10.1016/j.talanta.2021.122554] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 03/08/2021] [Revised: 05/08/2021] [Accepted: 05/24/2021] [Indexed: 12/26/2022]
Abstract
Accurate and effective detection of single-stranded nucleic acids is vital in both disease diagnosis and pathological studies. Hence, we develop a PAMmer-assisted CRISPR/Cas9 system mediated G4-EXPAR (Cas-G4EX) strategy for site-specific detection of ssRNA and ssDNA. PAMmer-assisted CRISPR/Cas9 executes the site-specific cleavage of target ssRNA or ssDNA and released product fragment with the desired sequence at the 3'-terminal. This fragment serves as a primer to activate subsequent sequence-dependent exponential amplification reaction (EXPAR). The G-rich EXPAR products assembles with hemin to form a G-Quadruplex (G4/hemin). G4/hemin catalyzes ABTS-H2O2 system with the appearance of vivid green color, realizing naked-eye analysis. Cas-G4EX integrates the superiority of CRISPR/Cas9 and EXPAR, presenting outstanding site-specific recognition and high-performance amplification efficiency. Meanwhile, the programmability of CRISPR/Cas9 system makes the proposed method become a universal detection paradigm for any ssRNA or ssDNA. Cas-G4EX assay shows the linear relationship from 250 aM to 2.5 nM for ssRNA detection with the actual LOD of 250 aM, and that ranges from 100 aM to 1 nM for ssDNA detection with the actual LOD of 100 aM. Additionally, the acceptable recoveries of 101.48%-109.61% for ssRNA and 93.25%-111.98% for ssDNA in real detection of human serum are obtained for detection of single-strand nucleic acid in real samples. Cas-G4EX also exhibits the excellent discrimination for single-base mutation of single-stranded nucleic acids. Therefore, Cas-G4EX assay provides a promising platform in the applications of molecular diagnosis and pathological analysis.
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Affiliation(s)
- Xianfeng Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China
| | - Xiaolong Chen
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China
| | - Chengxiang Chu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China
| | - Yuanyi Deng
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China
| | - Mei Yang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China
| | - Danqun Huo
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China; Chongqing Key Laboratory of Bio-perception & Intelligent Information Processing, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, 400044, PR China.
| | - Faliang Xu
- Medical School of Chongqing University, Chongqing, 400044, PR China.
| | - Changjun Hou
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China.
| | - Jiayi Lv
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China
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Hamilton E, Goel S, Arend R, Chu C, Richardson D, Corr B, John V, Janku F, Hays J, Michenzie M, Reichmann W, Achour H, Sherman M, Ruiz-Soto R, Mathews C. 728P A phase Ib/II study of rebastinib and paclitaxel in advanced/metastatic platinum-resistant ovarian cancer. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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18
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Wang X, Zhou S, Chu C, Yang M, Huo D, Hou C. Dual Methylation-Sensitive Restriction Endonucleases Coupling with an RPA-Assisted CRISPR/Cas13a System (DESCS) for Highly Sensitive Analysis of DNA Methylation and Its Application for Point-of-Care Detection. ACS Sens 2021; 6:2419-2428. [PMID: 34019391 DOI: 10.1021/acssensors.1c00674] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
High-performance detection of DNA methylation possesses great significance for the diagnosis and therapy of cancer. Herein, for the first time, we present a digestion strategy based on dual methylation-sensitive restriction endonucleases coupling with a recombinase polymerase amplification (RPA)-assisted CRISPR/Cas13a system (DESCS) for accurate and sensitive determination of site-specific DNA methylation. This dual methylation-sensitive restriction endonuclease system selectively digests the unmethylated target but exhibits no response to methylated DNA. Therefore, the intact methylated DNA target triggers the RPA reaction for rapid signal amplification. In contrast, the digested unmethylated target initiates no RPA reaction. RPA products with a T7 promoter can execute the T7 transcription in the presence of T7 RNA polymerase to generate a large number of single-stranded RNA (ssRNA). This ssRNA can be recognized by CRISPR/Cas13a to induce the ssRNase activity of Cas13a, showing the indiscriminate cleavage of the collateral FQ reporter to release the fluorescence signal. With such a design, by combining the unique features of dual methylation-sensitive restriction endonucleases with RPA-assisted CRISPR/Cas13a, the DESCS system not only presents the rapid and powerful signal amplification for the determination of methylated DNA with ultrahigh sensitivity but also effectively eliminates the false positive influences from incomplete digestion of the unmethylated target. More importantly, 0.01% methylation level can be effectively distinguished with the existence of excess unmethylated DNA. In addition, the DESCS assay is integrated into the lateral flow biosensor (LFB) for the point-of-care determination of DNA methylation. In view of the superiorities in high sensitivity, outstanding selectivity, and ease of operation, the DESCS system will provide a reliable assay for site-specific analysis of methylation.
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Affiliation(s)
- Xianfeng Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, P. R. China
| | - Shiying Zhou
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, P. R. China
| | - Chengxiang Chu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, P. R. China
| | - Mei Yang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, P. R. China
| | - Danqun Huo
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, P. R. China
- Chongqing Key Laboratory of Bio-perception & Intelligent Information Processing, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, P. R. China
| | - Changjun Hou
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400044, P. R. China
- Chongqing Key Laboratory of Bio-perception & Intelligent Information Processing, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, P. R. China
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Wang X, Zhou S, Chu C, Yang M, Huo D, Hou C. Target-induced transcription amplification to trigger the trans-cleavage activity of CRISPR/Cas13a (TITAC-Cas) for detection of alkaline phosphatase. Biosens Bioelectron 2021; 185:113281. [PMID: 33940494 DOI: 10.1016/j.bios.2021.113281] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [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: 02/06/2021] [Revised: 04/13/2021] [Accepted: 04/21/2021] [Indexed: 02/07/2023]
Abstract
Herein, an ultra-sensitive alkaline phosphatase (ALP) sensing strategy is developed by target-induced transcription amplification to trigger the trans-cleavage activity of Cas13a (TITAC-Cas). A double-stranded DNA duplex integrating a T7 promoter with 5'-phosphate and a transcription template (5'P-dsDNA) serves as the ALP substrate. In the absence of ALP, 5'P-dsDNA can be degraded by the λexo, leading to the subsequent transcription failure. In the presence of ALP, dephosphorylation reaction converts the 5'P-dsDNA to 5'OH-dsDNA and provides the protection for T7 promoter against the λexo-digestion. The intact T7 promoter of 5'OH-dsDNA can activate T7 transcription to produce a mass of single-stranded RNA (ssRNA). The ssRNA products possess a full complementarity to the spacer of crRNA and activate the ssRNase activity of CRISPR/Cas13a. As a result, Cas13a exhibits the indiscriminate cleavage of collateral FQ-reporter to release significant fluorescence signal, realizing the ultra-sensitive detection of ALP. Due to the triple signal amplification (ALP self-catalysis, T7 transcription amplification, and trans-cleavage of CRISPR/Cas13a), TITAC-Cas assay shows the ultra-sensitive detection of ALP activity with a wide linear range from 0.008 to 250 U∙L-1). The LOD is calculated to be 6 ± 0.52 mU∙L-1. TITAC-Cas assay is also successfully applied for analysis of ALP activity in HepG2 cell lysate with high fidelity. In addition, this method is employed to screen ALP inhibitor.
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Affiliation(s)
- Xianfeng Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China
| | - Shiying Zhou
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China
| | - Chengxiang Chu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China
| | - Mei Yang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China
| | - Danqun Huo
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China; Chongqing Key Laboratory of Bio-perception & Intelligent Information Processing, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, 400044, PR China.
| | - Changjun Hou
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China; Chongqing Key Laboratory of Bio-perception & Intelligent Information Processing, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, 400044, PR China.
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Lapière J, Christen C, Kerouani-Lafaye G, Monard A, Turcry F, Grude F, Gazin V, Burbank M, Chocarne P, Taleb A, Belgodere L, Brunel L, Chu C, Deligny C, Ake E, Gonçalves S, Bouheret P, Barbou-des-Courières S, Sainte-Marie I, Guyader G, Boudali L, Albin N. Evaluation of Clinical Trials in Onco-haematology: A New Method Based on Risk Analysis and Multidisciplinarity. Ther Innov Regul Sci 2021; 55:601-611. [PMID: 33502745 DOI: 10.1007/s43441-020-00256-7] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 12/30/2020] [Indexed: 12/01/2022]
Abstract
BACKGROUND European member states are increasingly vying with one another to recruit patients for clinical trials (CTs). The French national agency for medicines (ANSM) now receives an ever-growing number of CTs, extending response times. The aim of the new methodology presented herein is to reduce assessment times below the national mandatory timeframe of 60 days and to improve patient safety. MATERIALS AND METHODS Based on an analysis of the criteria defining CTs, 4 key points were identified (safety, fragile population, loss of opportunity, design complexity) to build a criticality score which would determine evaluation type. This score also determines the resources needed (complete evaluation, multidisciplinary advice, ad hoc evaluation) and the timeframe required for appropriate analysis. All post-phase I CTs were analysed from the implementation of the new assessment method, on 01/02/2018 through to 31/12/2019. RESULTS 447 CTs were analysed (63% industry and 37% academic sponsors). Based on a criticality scale, 27% of the CTs received a type A evaluation (complete), 37% a type B (multidisciplinary evaluation), 23% a type C evaluation (ad hoc evaluation) and 13% a type D evaluation (fast evaluation). From 2014 to 2017, 37% of the CTs were analysed within the mandatory timeframe, with a mean of 68 days, reaching a maximum of 102 days in 2017. Using this new assessment method, 92% of CTs respected the mandatory timeframe in 2019; the mean time in 2018-2019 was 34 days; Grounds for Non-Acceptance (GNA) were raised for 66% of the CTs (69% from academic sponsors and 65% from industrial firms). 3 CTs were refused. CONCLUSION Here, we demonstrate the feasibility of risk analysis and multidisciplinarity method, which resulted in a dramatic improvement of assessment times.
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Affiliation(s)
- J Lapière
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
- Groupe Hospitalier Mutualiste de Grenoble - Institut Daniel Hollard, Grenoble, France
| | - C Christen
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - G Kerouani-Lafaye
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - A Monard
- Groupe Hospitalier Mutualiste de Grenoble - Institut Daniel Hollard, Grenoble, France
| | - F Turcry
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - F Grude
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - V Gazin
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - M Burbank
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - P Chocarne
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - A Taleb
- Groupe Hospitalier Sud Ile de France, Melun, France
| | - L Belgodere
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - L Brunel
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - C Chu
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - C Deligny
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - E Ake
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - S Gonçalves
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - P Bouheret
- Groupe Hospitalier Mutualiste de Grenoble - Institut Daniel Hollard, Grenoble, France
| | - S Barbou-des-Courières
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - I Sainte-Marie
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - G Guyader
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - L Boudali
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France
| | - N Albin
- ANSM Agence Nationale de Sécurité Des Médicaments Direction Onco-Hématologie et Thérapie Cellulaire, 147 boulevard Anatole France, Saint-Denis, France.
- Groupe Hospitalier Mutualiste de Grenoble - Institut Daniel Hollard, Grenoble, France.
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Mir H, Chu C, Bouck Z, Sivaswamy A, Austin P, Dudzinski D, Nesbitt G, Edwards J, Yared K, Wong B, Hansen M, Weinerman A, Thavendiranathan P, Johri A, Rakowski H, Picard M, Weiner R, Bhatia R. IMPACT OF APPROPRIATE ECHOCARDIOGRAPHY USE ON UTILIZATION OF CARDIAC SERVICES AND OUTCOMES IN PATIENTS WITH HEART FAILURE OR CORONARY ARTERY DISEASE: A RETROSPECTIVE COHORT STUDY OF THE ECHO WISELY RANDOMIZED CONTROLLED TRIAL. Can J Cardiol 2020. [DOI: 10.1016/j.cjca.2020.07.170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Xu XJ, Gang YJ, Liu X, Huang GR, Chu C, Mu JJ, Yang RH. Association of arterial stiffness in non-hypertensive offspring with parental hypertension: the Hanzhong adolescent hypertension cohort study. Eur Rev Med Pharmacol Sci 2020; 24:9030-9040. [PMID: 32964993 DOI: 10.26355/eurrev_202009_22846] [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: 11/12/2022]
Abstract
OBJECTIVE Arterial stiffness may be an early marker for vascular changes associated with hypertension in young adults. Individuals with a family history of hypertension are at high risk of developing hypertension. We investigated whether arterial stiffness measured, such as mean arterial pressure (MAP) and brachial to ankle pulse wave velocity (baPWV), were increased in normotensive offspring with a parental history of hypertension. PATIENTS AND METHODS We compared MAP and baPWV in a sample of 1953 non-hypertensive participants (974 men, mean age 42±3 years) recruited in the previous Hanzhong adolescent hypertension cohort study. Standardized questionnaires, physical examinations and laboratory tests were used to obtain information, with a particular focus on family hypertension history, anthropometric, hemodynamic, and biochemical factors. RESULTS A total of 1039, 759, 155 participants had 0, 1, and 2 parents with hypertension, respectively. Parental hypertension was associated with elevated offspring MAP (in multivariable-adjusted models, B=1.5 mm Hg, 95% CI 0.8-2.2 for 1 parent with hypertension; B=3.0 mm Hg, 95% CI 1.8-4.3, for 2 parents with hypertension; p<0.001 for each). A significant positive correlation was also observed between MAP and baPWV (r=0.543, p<0.001). BaPWV displayed a similar correlation with parental hypertension in age-adjusted, sex-adjusted and body mass index (BMI)-adjusted models (B=23.1 cm/s, 95% CI 8.0-38.1, for 1 parent with hypertension, p<0.01; B=53.0 cm/s, 95% CI 25.8-80.2, p<0.001 for 2 parents with hypertension), but associations were attenuated in multicovariate models after adjustment for MAP. In multivariable-adjusted models, logistic regression analysis showed that the risk of belonging to the upper quartile of MAP was significantly increased for offspring whose parents had hypertension (OR=1.5, 95% CI 1.2-1.9, for 1 parent with hypertension; OR=2.3, 95% CI 1.6-3.4, for 2 parents with hypertension; p<0.001 for each). Similarly, the odds ratios of belonging to the upper quartile of baPWV increased (OR=1.3, 95% CI 1.1-1.6, for 1 parent with hypertension, p<0.05; OR=2.1, 95% CI 1.5-3.0, for 2 parents with hypertension, p<0.001, in age-sex-BMI-adjusted models), and were then brought down in the fully adjusted models including MAP, but the increase remained significant for 2 parents with hypertension (OR=1.6, 95% CI 1.0-2.3, p<0.05). CONCLUSIONS These findings provide evidence that arterial stiffness is higher in young-to middle-aged normotensive subjects with a family history of hypertension, suggesting that increased arterial stiffness may occur in the early stages during the pathogenesis of hypertension.
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Affiliation(s)
- X-J Xu
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, PR China.
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Wang X, Chu C, Lv J, Jia Y, Lin L, Yang M, Zhang S, Huo D, Hou C. Simultaneous measurement of Cr(III) and Cu(II) based on indicator-displacement assay using a colorimetric nanoprobe. Anal Chim Acta 2020; 1129:108-117. [PMID: 32891379 DOI: 10.1016/j.aca.2020.07.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 04/23/2020] [Revised: 06/13/2020] [Accepted: 07/03/2020] [Indexed: 12/18/2022]
Abstract
High-performance analysis of heavy metal ions is great importance in both environment and food safety. In this work, a facile and reliable colorimetric sensor was presented for simultaneous detection of Cu2+ and Cr3+ based on indicator-displacement assay (IDA). As a typical silicate nanomaterials, ZnSiO3 hollow nanosphere (ZSHS) exhibited an outstanding ion exchange capacity. Zincon was incorporated with the ZSHS to form a zincon/ZSHS hybrid ionophore with a blue color. Upon the addition of Cr3+, IDA reaction and selective ion exchange occurred with the color change of zincon/ZSHS ionophore from blue to yellow. With such a design, colorimetric measurement of Cr3+ was realized. The linear concentration for Cr3+ detection ranged from 0.5 μM to 75 μM with the LOD of 83.2 nM. Furthermore, we also screened different kinds of complexing agents that may respond with zincon/ZSHS ionophore and various metal ions. It was found that tartaric acid (TA) showed the chelation capability of Zn2+-TA is stronger than that of Zn2+-zincon. Thus zincon/ZSHS/TA presented a yellow color due to the chelation reaction of Zn2+-TA, releasing the zincon as a free state. After addition of Cu2+, a stronger chelation reaction of Cu2+-zincon occurred. This process involved in the color change from yellow to blue and realized colorimetric measurement of Cu2+. The detection limit of Cu2+ was calculated to be 43.7 nM with linear range from 0.1 to 20 μM. In addition, the zincon/ZSHS nanoprobe was successfully applied for simultaneous measurement of Cu2+ and Cr3+ in sorghum and river water, indicating that the zincon/ZSHS nanoprobe provided a promising sensing platform in environment and food safety.
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Affiliation(s)
- Xianfeng Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China
| | - Chengxiang Chu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China
| | - Jiayi Lv
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China
| | - Yuanyuan Jia
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China
| | - Libo Lin
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China
| | - Mei Yang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China
| | - Suyi Zhang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China; National Engineering Research Center of Solid-State Brewing, Luzhou Laojiao Group Co. Ltd., Luzhou, 646000, PR China.
| | - Danqun Huo
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China; Chongqing Key Laboratory of Bio-perception & Intelligent Information Processing, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, 400044, PR China.
| | - Changjun Hou
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China; Chongqing Key Laboratory of Bio-perception & Intelligent Information Processing, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, 400044, PR China.
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Hamilton E, Goel S, Arend R, Chu C, Richardson D, Diamond J, John V, Janku F, Matthews C, JeBailey L, Kuida K, Achour H, Ruiz-Soto R, Hays J. 839P A phase Ib/II study of rebastinib and paclitaxel in advanced or metastatic platinum-resistant ovarian cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Demiya S, Neumann C, Chu C, Chand K, Yu E. PNS2 Voice Technology - an Opportunity to Broaden Participation in Patient Reported Outcomes Research. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Chu C, Sheen Y. 665 Associations of BIRC2/3/5 copy number gains with clinicopathological features of acral melanomas in Taiwan. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Thomas AM, Li S, Chu C, Shats I, Xu J, Calabresi PA, van Zijl PCM, Walczak P, Bulte JWM. Evaluation of cell transplant-mediated attenuation of diffuse injury in experimental autoimmune encephalomyelitis using onVDMP CEST MRI. Exp Neurol 2020; 329:113316. [PMID: 32304749 DOI: 10.1016/j.expneurol.2020.113316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 02/08/2020] [Accepted: 04/14/2020] [Indexed: 12/13/2022]
Abstract
The development and translation of cell therapies have been hindered by an inability to predict and evaluate their efficacy after transplantation. Using an experimental autoimmune encephalomyelitis (EAE) mouse model of multiple sclerosis (MS), we studied attenuation of the diffuse injury characteristic of EAE and MS by transplanted glial-restricted precursor cells (GRPs). We assessed the potential of on-resonance variable delay multiple pulse (onVDMP) chemical exchange saturation transfer (CEST) MRI to visualize this attenuation. Allogeneic GRPs transplanted in the motor cortex or lateral ventricles attenuated paralysis in EAE mice and attenuated differences compared to naïve mice in onVDMP CEST signal 5 days after transplantation near the transplantation site. Histological analysis revealed that transplanted GRPs co-localized with attenuated astrogliosis. Hence, diffuse injury-sensitive onVDMP CEST MRI may complement conventional MRI to locate and monitor tissue regions responsive to GRP therapy.
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Affiliation(s)
- A M Thomas
- The Russell H. Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, United States of America; Cellular Imaging Section and Vascular Biology Program, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, United States of America
| | - S Li
- The Russell H. Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, United States of America; Cellular Imaging Section and Vascular Biology Program, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, United States of America
| | - C Chu
- The Russell H. Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, United States of America; Cellular Imaging Section and Vascular Biology Program, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, United States of America
| | - I Shats
- The Russell H. Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, United States of America; Cellular Imaging Section and Vascular Biology Program, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, United States of America
| | - J Xu
- The Russell H. Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, United States of America; F.M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, United States of America
| | - P A Calabresi
- Department of Neurology, The Johns Hopkins University School of Medicine, United States of America; The Solomon H Snyder Department of Neuroscience, The Johns Hopkins University School of Medicine, United States of America
| | - P C M van Zijl
- The Russell H. Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, United States of America; F.M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, United States of America; Department of Oncology, the Johns Hopkins University School of Medicine, United States of America
| | - P Walczak
- The Russell H. Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, United States of America; Cellular Imaging Section and Vascular Biology Program, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, United States of America
| | - J W M Bulte
- The Russell H. Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, United States of America; Cellular Imaging Section and Vascular Biology Program, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, United States of America; F.M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, United States of America; Department of Oncology, the Johns Hopkins University School of Medicine, United States of America; Department of Biomedical Engineering, The Johns Hopkins University School of Medicine, United States of America; Department of Chemical & Biomolecular Engineering, The Johns Hopkins University School of Medicine, United States of America.
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Guo TS, Chu C, Zheng WL, Hu JW, Mu JJ. [The correlation between blood pressure response to cold pressor test and long-term blood pressure changes]. Zhonghua Nei Ke Za Zhi 2020; 59:286-291. [PMID: 32209194 DOI: 10.3760/cma.j.cn112138-20190623-00431] [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: The aim of the study was to investigate the correlation between blood pressure response to cold pressor test (CPT) and follow-up blood pressure after 8 years in subjects, and to evaluate the predictive value of CPT for long-term blood pressure levels. Methods: A total of 365 individuals from eight natural villages were enrolled by stratified cluster sampling from Mei County, Shaanxi Province in 2004. Baseline characteristics of subjects were collected and CPTs were conducted. Subjects were followed up in 2009 and 2012, respectively. According to the maximal change of systolic response (SR), the area under the curve (AUC) of systolic blood pressure change (AUC-SBP), the maximal change of diastolic response (DR) and the AUC of diastolic blood pressure change (AUC-DBP) in CPT, the individuals were divided into four quartile groups by above parameters, respectively: group Ⅰ (P(25)), group Ⅱ (P(50)), group Ⅲ (P(75)) and group Ⅳ (P(100)). The correlation between blood pressure response to CPT and the follow-up blood pressure was analyzed. Results: (1) There were no significant differences in baseline blood pressure levels and prevalence of hypertension among four quartile groups no matter it was grouped on SR, DR, AUC-SBP or AUC-DBP. (2) The prevalence of hypertension in each group from lowest (P(25)) to highest (P(100)) in 2012 was 25.64%, 30.67%, 38.03%, 55.74% on SR grouping (P<0.01), and 27.5%, 29.17%, 38.46%, 57.35% on AUC-SBP grouping (P<0.05), respectively. (3) There were no significant differences in the prevalence of hypertension among four groups in 2012 (P>0.05) either on DR or on AUC-DBP grouping. (4) The random effects model analysis showed that the correlation coefficient between SR, AUC-SBP and long-term systolic blood pressure increase were 1.91 (P<0.05) and 1.44 (P<0.05), respectively, and the correlation coefficient between DR, AUC-DBP and long-term diastolic blood pressure increase were 0.82 (P<0.05) and 0.78 (P>0.05), respectively. Age, male, body mass index, and fasting blood glucose were independent risk factors for long-term blood pressure elevation, and age, body mass index and fasting blood glucose positively correlated with changes in long-term blood pressure (all P<0.05). Conclusion: Individual systolic blood pressure response to CPT can be used as a predictor of long-term hypertension.
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Affiliation(s)
- T S Guo
- Department of Cardiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - C Chu
- Department of Cardiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - W L Zheng
- Department of Cardiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - J W Hu
- Department of Cardiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - J J Mu
- Department of Cardiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
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Lenger S, Liang B, Lowder J, Strand E, Chu C. 22: Creation of a surgical skills teaching model for anterior and posterior colporrhaphy. Am J Obstet Gynecol 2020. [DOI: 10.1016/j.ajog.2019.12.170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Whittle E, James E, Smith A, Highton M, Shaikh S, Stone B, Thompson J, Orr T, Hogan I, Stokes S, Langton J, Chu C, Orr T, Hogan I. 44 Wirral's Teletriage Service. Age Ageing 2020. [DOI: 10.1093/ageing/afz185.07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
The Wirral Teletriage Service provides non-urgent clinical support to Wirral Care Homes in order to help avoid unnecessary hospital admissions for their residents. It also aims to provide quicker access to clinical assessment than via NHS 111 and to provide this care in the patient’s residence wherever possible.
Methods
Care homes call the Teletriage service when they have concerns about the health of one of their residents. The Teletriage nurse undertakes a clinical assessment of the resident remotely via Skype. Care Homes have been provided with a secure NHS email address to facilitate secure sharing of data. They have also been provided with iPads and training for their staff. After being assessed by Teletriage, residents are signposted to the most appropriate care pathway for their needs.
Results
76 Care Homes have signed up to the service. On average, the Teletriage Service receives 300-400 calls a month. In an 18 month period, the number of calls to NHS 111 have reduced by 76%. Out of all the calls to Teletriage, 22% of patients were managed by the Teletriage team with no onward referral, 57% were managed via community services e.g GPs, Community Geriatricians, and 10% were referred to the ambulance service. Emergency Health Care Plans (EHCPs), Preferred Priorities of Care and EOL (End of Life) wishes are taken into account.
Conclusions
The Teletriage project has reduced the number of phone calls to NHS 111 and the ambulance service, and subsequently has reduced the number of patients conveyed to hospital by 12%. The Teletriage nurses work very closely with various community services as well as GPs, NWAS and Community Geriatricians. The ongoing training and education provided to the Care Home Staff means that overall there has been good engagement with the project from the majority of the Wirral Care Homes.
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Affiliation(s)
- E Whittle
- Wirral University Teaching Hospitals NHS Foundation Trust
| | - E James
- Wirral Community Health and Care NHS Foundation Trust
| | - A Smith
- Wirral Community Health and Care NHS Foundation Trust
| | - M Highton
- Wirral Community Health and Care NHS Foundation Trust
| | - S Shaikh
- Wirral Clinical Commissioning Group
| | - B Stone
- Wirral Clinical Commissioning Group
| | | | - T Orr
- Wirral Community Health and Care NHS Foundation Trust
| | - I Hogan
- Wirral Community Health and Care NHS Foundation Trust
| | - S Stokes
- Wirral Clinical Commissioning Group
| | - J Langton
- Wirral University Teaching Hospitals NHS Foundation Trust
| | - C Chu
- Wirral University Teaching Hospitals NHS Foundation Trust
| | - T Orr
- Wirral Community Health and Care NHS Foundation Trust
| | - I Hogan
- Wirral Community Health and Care NHS Foundation Trust
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Dwi Putra SE, Reichetzeder C, Hasan AA, Slowinski T, Chu C, Krämer BK, Kleuser B, Hocher B. Being Born Large for Gestational Age is Associated with Increased Global Placental DNA Methylation. Sci Rep 2020; 10:927. [PMID: 31969597 PMCID: PMC6976643 DOI: 10.1038/s41598-020-57725-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 12/31/2019] [Indexed: 02/01/2023] Open
Abstract
Being born small (SGA) or large for gestational age (LGA) is associated with adverse birth outcomes and metabolic diseases in later life of the offspring. It is known that aberrations in growth during gestation are related to altered placental function. Placental function is regulated by epigenetic mechanisms such as DNA methylation. Several studies in recent years have demonstrated associations between altered patterns of DNA methylation and adverse birth outcomes. However, larger studies that reliably investigated global DNA methylation are lacking. The aim of this study was to characterize global placental DNA methylation in relationship to size for gestational age. Global DNA methylation was assessed in 1023 placental samples by LC-MS/MS. LGA offspring displayed significantly higher global placental DNA methylation compared to appropriate for gestational age (AGA; p < 0.001). ANCOVA analyses adjusted for known factors impacting on DNA methylation demonstrated an independent association between placental global DNA methylation and LGA births (p < 0.001). Tertile stratification according to global placental DNA methylation levels revealed a significantly higher frequency of LGA births in the third tertile. Furthermore, a multiple logistic regression analysis corrected for known factors influencing birth weight highlighted an independent positive association between global placental DNA methylation and the frequency of LGA births (p = 0.001).
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Affiliation(s)
- S E Dwi Putra
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology), University Medical Centre Mannheim, University of Heidelberg, Heidelberg, Germany.,Department of Nutritional Toxicology, Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany.,Faculty of Biotechnology, University of Surabaya, Surabaya, Indonesia
| | - C Reichetzeder
- Department of Nutritional Toxicology, Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany.
| | - A A Hasan
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology), University Medical Centre Mannheim, University of Heidelberg, Heidelberg, Germany.,Department of Nutritional Toxicology, Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany.,Department of Biochemistry, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt.,UP Transfer GmbH, University of Potsdam, Potsdam, Germany
| | - T Slowinski
- Department of Nephrology, Campus Charité Mitte, University Hospital Charité, Berlin, Germany
| | - C Chu
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology), University Medical Centre Mannheim, University of Heidelberg, Heidelberg, Germany
| | - B K Krämer
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology), University Medical Centre Mannheim, University of Heidelberg, Heidelberg, Germany
| | - B Kleuser
- Department of Nutritional Toxicology, Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany
| | - B Hocher
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology), University Medical Centre Mannheim, University of Heidelberg, Heidelberg, Germany. .,Department of Basic Medicine, Medical College of Hunan Normal University, Changsha, China. .,Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China.
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Ng S, Liu T, Chan C, Chan C, Chu C, Poon C, Poon L, Lai C, Tse M. Reliability and validity of the long-distance corridor walk among stroke survivors. J Rehabil Med 2020; 52:jrm00062. [DOI: 10.2340/16501977-2691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Nouraei H, Virani S, Chu C, Davis M, Ignaszewski A, Toma M. APPROPRIATENESS OF ORAL ANTICOAGULATION USE IN A CONTEMPORARY COHORT OF AMBULATORY HEART FAILURE PATIENTS. Can J Cardiol 2019. [DOI: 10.1016/j.cjca.2019.07.417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Liang W, Lu A, Chu C, Wang J, Davis D, Liang W. REGULATION OF VOLTAGE-GATED SODIUM CURRENT BY WNT SIGNALLING IN HEALTHY AND BRUGADA SYNDROME HUMAN CARDIOMYOCYTES. Can J Cardiol 2019. [DOI: 10.1016/j.cjca.2019.07.303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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35
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Geng X, Zhang Y, Yan J, Chu C, Gao F, Jiang Z, Zhang X, Chen Y, Wei X, Feng Y, Lu H, Wang C, Zeng F, Jia W. Mitochondrial DNA mutation m.3243A>G is associated with altered mitochondrial function in peripheral blood mononuclear cells, with heteroplasmy levels and with clinical phenotypes. Diabet Med 2019; 36:776-783. [PMID: 30536471 DOI: 10.1111/dme.13874] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/29/2018] [Indexed: 12/18/2022]
Abstract
AIMS To investigate the associations among heteroplasmy levels (i.e. the proportions of mutant and wild-type mitochondrial DNA in the same cell), mitochondrial function and clinical severity of the m.3243A>G mutation. METHODS A total of 17 participants carrying the m.3243A>G mutation and 17 sex- and age-matched healthy controls were included in this study. Heteroplasmy levels of the m.3243A>G mutation in leukocytes, saliva and urine sediment were determined by pyrosequencing. The clinical evaluation included endocrinological, audiological and ophthalmological examinations. Mitochondrial function was determined in peripheral blood mononuclear cells isolated from participants. RESULTS Heteroplasmy levels in urine sediment were higher than those in leukocytes and saliva. Reduced levels of adenosine triphosphate and mitochondrial membrane potential, and increased reactive oxygen species production were observed in mutant peripheral blood mononuclear cells (all P < 0.05). Linear regression analysis indicated that higher heteroplasmy levels in peripheral blood leukocytes were associated with increased levels of glycated albumin and HbA1c , and decreased total hip bone mineral density T-score after adjustment for age and sex (all P < 0.05). Furthermore, mitochondrial membrane potential was independently associated with bone mineral density T-score at the femoral neck (P < 0.05). CONCLUSIONS Heteroplasmy levels in peripheral blood leukocytes and mitochondrial membrane potential in peripheral blood mononuclear cells were closely associated with clinical manifestations and were valuable for evaluation of the clinical severity of the m.3243A>G mutation.
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Affiliation(s)
- X Geng
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes, Shanghai, China
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
- Metabolic Diseases Biobank, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Y Zhang
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes, Shanghai, China
- Metabolic Diseases Biobank, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
- Centre for Translational Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - J Yan
- Shanghai Institute of Medical Genetics, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
- Key Laboratory of Embryo Molecular Biology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
- Ministry of Health of China and Shanghai Key Laboratory of Embryo and Reproduction Engineering, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - C Chu
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes, Shanghai, China
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
- Metabolic Diseases Biobank, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - F Gao
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes, Shanghai, China
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
- Metabolic Diseases Biobank, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Z Jiang
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes, Shanghai, China
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
- Metabolic Diseases Biobank, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - X Zhang
- Department of Neurology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Y Chen
- Department of Ophthalmology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - X Wei
- Department of Diagnostic Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Y Feng
- Department of Otolaryngology Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - H Lu
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes, Shanghai, China
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
- Metabolic Diseases Biobank, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - C Wang
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes, Shanghai, China
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
- Metabolic Diseases Biobank, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - F Zeng
- Shanghai Institute of Medical Genetics, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
- Key Laboratory of Embryo Molecular Biology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
- Ministry of Health of China and Shanghai Key Laboratory of Embryo and Reproduction Engineering, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - W Jia
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes, Shanghai, China
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
- Metabolic Diseases Biobank, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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Mantia-Smaldone G, Arguello D, Mahdi H, ElNaggar A, Winer I, Holloway R, Krivak T, Jones N, Galvan-Turner V, Herzog T, Chu C, Brown J. Molecular portraits of clear cell ovarian and endometrial carcinoma with comparison to clear cell renal cell carcinoma. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.04.407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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37
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Chu C, Sheen Y, Tan K, Tse K. 815 Genetic alterations in primary melanoma in Taiwan. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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38
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Chu C, Zhang YL, Yu L, Sharma S, Fei ZL, Drevet JR. Epididymal small non-coding RNA studies: progress over the past decade. Andrology 2019; 7:681-689. [PMID: 31044548 DOI: 10.1111/andr.12639] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 03/01/2019] [Accepted: 03/30/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND Small non-coding RNAs (sncRNAs) accomplish a huge variety of biological functions. Over the past decade, we have witnessed the substantial progress in the epididymal sncRNA studies. In the Epididymis 7, we had the true privilege of having a whole session to share our findings and exchange ideas on the epididymal sncRNA studies. OBJECTIVES This mini-review attempts to provide an overview of what is known about the sncRNAs in the mammalian epididymis and discuss the future directions in this field. METHODS We surveyed literature regarding the sncRNA studies in the mammalian epididymis, and integrated some of our unpublished findings as well. We focus on the progress in methodology and the advances in our understanding of the expression and functions of epididymal sncRNAs. RESULTS AND DISCUSSION The applications of high-throughput approaches have made great contributions in the discovery of new sncRNA species and profiling their dynamics in the epithelial cells, the passing spermatozoa, and the luminal environment. The diverse classes of epididymal sncRNAs exert important biological functions from the in situ regulation of epididymal gene expression to the epigenetic inheritance in the offspring. CONCLUSION Although still in its infancy, we believe that the research on epididymal sncRNAs will not only lead to a better understanding of their physiological and pathological functions, but also contribute to the whole landscape of the RNA field.
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Affiliation(s)
- C Chu
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA.,Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Y L Zhang
- State Key Laboratory of Molecular Biology, Shanghai Key Laboratory of Molecular Andrology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - L Yu
- State Key Laboratory of Molecular Biology, Shanghai Key Laboratory of Molecular Andrology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - S Sharma
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA.,Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Z L Fei
- State Key Laboratory of Molecular Biology, Shanghai Key Laboratory of Molecular Andrology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - J R Drevet
- Genetics Reproduction & Development Laboratory, CNRS UMR 6293 - INSERM U1103 - Université Clermont Auvergne, Clermont-Ferrand, France
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Hong J, Do T, Butt M, Chu C, Zaenglein A. 625 Retrospective review and telephone follow-up of adverse events resulting from standardized isotretinoin lab monitoring. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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40
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Bollegala N, Gakhal N, Marani H, Chu C. A90 SCREENING FOR COMORBID SERONEGATIVE ARTHRITIS AND INFLAMMATORY BOWEL DISEASE IN AN AMBULATORY GASTROENTEROLOGY AND RHEUMATOLOGY PRACTICE MODEL. J Can Assoc Gastroenterol 2019. [DOI: 10.1093/jcag/gwz006.089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- N Bollegala
- GI, Women’s College Hospital, Toronto, ON, Canada
| | - N Gakhal
- GI, Women’s College Hospital, Toronto, ON, Canada
| | - H Marani
- GI, Women’s College Hospital, Toronto, ON, Canada
| | - C Chu
- GI, Women’s College Hospital, Toronto, ON, Canada
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41
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Aggarwal S, Chu C, Ngumi M. Abstract P1-10-05: Analysis of genetic mutation in ethnically diverse population with Breast and ovarian cancer: Single institution experience. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p1-10-05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Only 5-10% of all breast and ovarian cancers have been attributed to inherited mutation. In unselected breast cancer patients, prevalence of germline BRCA 1 & 2 is about 2%. In Ashkenazi Jewish population the prevalence is estimated to be 11.7%. The rate of mutations in other populations has not been well characterized. The purpose of this study is to identify and characterize the risk of genetic mutations in an ethnically diverse population referred for genetic testing according to NCCN guidelines.
Method:
In this single institution retrospective study, we analyzed 782 patients referred for genetic testing between 2009-2018. Information regarding reason for referral, ethnicity, cancer history and results of genetic mutation using multigene panels were collected.
Results:
Reasons for referral were:
· Family History of cancer (142; 18.6%),
· Breast cancer diagnosed at early age (207; 26.4%),
· Triple negative breast cancer (12 ;53%
· Ovarian cancer (61; 7.8%)
· Multiple cancer (32; 4.09%)
· Known BRCA 1 or 2 mutation (51;6.5%)
· Known other mutation (9;1.15%)
· Family h/o cancer but not diagnosed with cancer (268)
Ethnic distribution:
· 328 Hispanic (41.94%)
· 177 Caucasian (22.6%),
· 27 Chinese, (3.4%)
· 52 Vietnamese (6.6%)
· 86 other- Asian (11%)
· 32 Middle eastern (4.1%),
· 14 South Asian (1.8%)
· 35 African American (4.5%)
· 8 Ashkenazi Jewish (1%)
· 19 Mixed Hispanic (2.1%)
Genetic testing was done in 545 /782 patients.
Deleterious Mutation detected: 88 patients (16.5% of tested)
· BRCA 1: 32(5.8%)
· BRCA 2:28 (5.14%)
· MSH2:5(0.9%)
· p53:39 (0.5%)
· PLB2:3 (0.38%)
· MUTYH:3 (0.38%)
· CDH1 :2 (0.26%)
· PMS2: 2 ( 0.26%)
· ATM: 1(0.13%)
· CCKn2A: 1(0.13%)
· CHEK 2: 1(0.13)
· MET:1(0.13%)
· MSH6:1 (0.13%)
· RAD50 :1(0.13%)
· RET1;1(0.13%)
BRCA1/BRCA2 mutation: 60
Mutation in BRCA 1/ 2 distribution by ethnicity:
· Hispanic (28; 8.54 %),
· Chinese (4;14.8%)
· Vietnamese (4; 7.7%)
· other Asian (12;13.9%)
· African American (3, 8.5, %)
· South Asian (0 %)
· Caucasian (8; 4.5 %)
· All Asian (20/165: 12.1%)
Mutation in other gene by Ethnicity: total 26
Hispanic (16, 4.5%), Caucasian: (3, 1.7%) Asian other than Chinese and Vietnamese (4, 4.65%)
Mutation in Breast cancer: 333 Breast cancer patients tested, 39 patients (11.17%) were found to have mutations.
10/32 triple negative (31%) 4/49 her2neu positive patients (8.1%) and 15/252 (5.9%) ER+ patients found to have mutations.
17/39 breast cancer patients with mutation had prophylactic BSO.
Mutation in BRCA 1& 2 by reason for referral:
Known family h/o of BRCA1 or 2 mutations (18; 39.5%)
Early age of cancer (10, 7.4%)
Cancer with positive family history (17, 8.2%)
Triple negative (2, 16%).
Variant of Unknown significance (VUS): 140 patients (25 %)
VUS in BRCA 2 were most common. VUS were found in 17% of Hispanic and African American patients.
No significant difference in PFS and OS was found in patient with mutation and without mutation
Conclusion:
We found much higher rates (16.5%) than previously reported mutation detection in this very highly diverse patient population.
Rate of BRCA 1&2 mutation was 8.55% in Hispanic and 12.1% in Asian patients compared with 4.5% in Caucasian patient when selected for high risk factors.
We Also noted very high rate of VUS especially in Hispanic and African American patients.
Citation Format: Aggarwal S, Chu C, Ngumi M. Analysis of genetic mutation in ethnically diverse population with Breast and ovarian cancer: Single institution experience [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P1-10-05.
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Affiliation(s)
- S Aggarwal
- Santa Clara Valley Medical Center, San Jose, CA
| | - C Chu
- Santa Clara Valley Medical Center, San Jose, CA
| | - M Ngumi
- Santa Clara Valley Medical Center, San Jose, CA
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Affiliation(s)
- S Woods
- Department of Elderly Care, Wirral University Teaching Hospital
| | - C Chu
- Department of Elderly Care, Wirral University Teaching Hospital
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Chu C, Chang C, Lin C, Ko T. ISQUA18-2405Sharing Decision Making (SDM) Approach Applicable to Whole Hospital - A Medical Center in Northern Taiwan. Int J Qual Health Care 2018. [DOI: 10.1093/intqhc/mzy167.31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- C Chu
- Cathay general hospital, Taipei, Taiwan
| | - C Chang
- Cathay general hospital, Taipei, Taiwan
| | - C Lin
- Cathay general hospital, Taipei, Taiwan
| | - T Ko
- Cathay general hospital, Taipei, Taiwan
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Wang Y, Hu JW, Wang KK, Yan Y, Chu C, Zheng WL, Lv YB, Ma Q, Gao K, Yuan Y, Yuan ZY, Mu JJ. P5722Association between salt intake and uric acid, and its interaction on the incidence of prehypertension among Chinese young adults. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Y Wang
- First Hospital of Medical College of Xi'an Jiaotong University, Xian, China People's Republic of
| | - J W Hu
- First Hospital of Medical College of Xi'an Jiaotong University, Xian, China People's Republic of
| | - K K Wang
- First Hospital of Medical College of Xi'an Jiaotong University, Xian, China People's Republic of
| | - Y Yan
- First Hospital of Medical College of Xi'an Jiaotong University, Xian, China People's Republic of
| | - C Chu
- First Hospital of Medical College of Xi'an Jiaotong University, Xian, China People's Republic of
| | - W L Zheng
- First Hospital of Medical College of Xi'an Jiaotong University, Xian, China People's Republic of
| | - Y B Lv
- 2nd Affiliated Hospital of Xian Jiaotong University, Xian, China People's Republic of
| | - Q Ma
- First Hospital of Medical College of Xi'an Jiaotong University, Xian, China People's Republic of
| | - K Gao
- First Hospital of Medical College of Xi'an Jiaotong University, Xian, China People's Republic of
| | - Y Yuan
- First Hospital of Medical College of Xi'an Jiaotong University, Xian, China People's Republic of
| | - Z Y Yuan
- First Hospital of Medical College of Xi'an Jiaotong University, Xian, China People's Republic of
| | - J J Mu
- First Hospital of Medical College of Xi'an Jiaotong University, Xian, China People's Republic of
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Papatla K, Halpern M, Hernandez E, Brown J, Benrubi I, Houck K, Chu C, Rubin S. Patients with a history of cervical cancer are at an increased risk of developing primary anal or oropharyngeal cancer. Gynecol Oncol 2018. [DOI: 10.1016/j.ygyno.2018.04.475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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46
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Roberts M, Hall M, Woodman S, Glass D, Brown J, Benrubi I, Jain A, Martin L, Chu C, Rubin S, Mantia-Smaldone G. Opportunities for improved Lynch syndrome tumor screening in endometrial cancer patients surgically treated at an NCI-designated comprehensive cancer center. Gynecol Oncol 2018. [DOI: 10.1016/j.ygyno.2018.04.473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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47
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Chu C, Syu Y, Sheen Y, Chu C. 147 Novel RNA targets regulated by insulin-like growth factor 2 mRNA-binding protein 3 (IMP-3) in human melanoma. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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48
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Liu C, Chu C, Zhang J, Wu D, Xu D, Li P, Chen Y, Liu B, Pei L, Zhang L, Liu S, Qi T, Lou XY, Li L. IRX3 is a genetic modifier for birth weight, adolescent obesity and transaminase metabolism. Pediatr Obes 2018; 13:141-148. [PMID: 28316138 DOI: 10.1111/ijpo.12214] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 01/20/2017] [Indexed: 01/29/2023]
Abstract
OBJECTIVE IRX3 expression has been functionally associated in obesity-associated long-distance susceptibility loci, but the effect of the IRX3 genetic variants on human obesity and obesity-related metabolism remains uncertain. METHODS To determine the genetic role of IRX3, we conducted a molecular epidemiological analysis using three haplotype tagging single nucleotide polymorphisms (SNPs; rs8053360, rs3751723 and rs12445085) and one nonsynonymous SNP (rs1126960) at the IRX3 locus in 333 junior and senior high school students from a northeast Chinese population. RESULTS We identified significant associations between IRX3 SNPs and birth weight, body mass index (BMI), aspartate aminotransferase (AST), alanine aminotransferase (ALT) and AST/ALT ratio. The rs8053360 CC and rs1126960 GG genotypes were associated with increased birth weight and BMI, especially in females. Individuals with the rs12445085 TT genotype had significantly higher levels of AST and ALT, whereas individuals with the rs1126960 GG genotype had a significantly lower AST/ALT ratio than did individuals with other genotypes. However, no significant relationships were found between any of the IRX3 SNPs and metabolic syndrome or diabetes. CONCLUSIONS IRX3 genetic variants associate with birth weight, BMI and AST/ALT-related transaminase metabolism, supporting the role of IRX3 as an obesity-associated susceptibility gene.
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Affiliation(s)
- C Liu
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, China
| | - C Chu
- Department of Applied Psychology, Humanities and Management Colleges, Guangdong Medical University, Guangdong, China
| | - J Zhang
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, China
| | - D Wu
- No. 2 Department of Rheumatology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - D Xu
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, China
| | - P Li
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Y Chen
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, China
| | - B Liu
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, China
| | - L Pei
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, China
| | - L Zhang
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, China
| | - S Liu
- Institute of Bioinformatics, Zhejiang University, Hangzhou, China
| | - T Qi
- Institute of Bioinformatics, Zhejiang University, Hangzhou, China
| | - X-Y Lou
- Biostatistics Program, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA.,Arkansas Children's Research Institute, Little Rock, AR, USA
| | - L Li
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, China
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Yen Y, Chu C, Wei Y, Cheng Y, Tseng Y, Su W, Lin C. MA 16.02 Different Pattern and Prognostic Role of PD-L1, IDO, and Foxp3 Treg Expression in Thymoma and Thymic Carcinoma. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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50
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Rousseau J, Chu C, Guitard P. HOME ASSESSMENT OF PERSON-ENVIRONMENT INTERACTION (HOPE): A CROSS-CULTURAL VALIDATION STUDY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- J. Rousseau
- École de Réadaptation/School of Rehabilitation, Université de Montréal, Montreal, Quebec, Canada,
- Research Center Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada
,
| | - C. Chu
- CIUSSS de l’Est-de-Montréal, Montreal, Quebec, Canada,
| | - P. Guitard
- École des Sciences de la Réadaptation /School of Rehabilitation Sciences, Université d’Ottawa / University of Ottawa, Ottawa, Ontario, Canada
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