87 results on '"Hong JL"'
Search Results
2. Image processing tools for petabyte-scale light sheet microscopy data.
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Ruan X, Mueller M, Liu G, Görlitz F, Fu TM, Milkie DE, Lillvis JL, Kuhn A, Gan Chong J, Hong JL, Herr CYA, Hercule W, Nienhaus M, Killilea AN, Betzig E, and Upadhyayula S
- Abstract
Light sheet microscopy is a powerful technique for high-speed three-dimensional imaging of subcellular dynamics and large biological specimens. However, it often generates datasets ranging from hundreds of gigabytes to petabytes in size for a single experiment. Conventional computational tools process such images far slower than the time to acquire them and often fail outright due to memory limitations. To address these challenges, we present PetaKit5D, a scalable software solution for efficient petabyte-scale light sheet image processing. This software incorporates a suite of commonly used processing tools that are optimized for memory and performance. Notable advancements include rapid image readers and writers, fast and memory-efficient geometric transformations, high-performance Richardson-Lucy deconvolution and scalable Zarr-based stitching. These features outperform state-of-the-art methods by over one order of magnitude, enabling the processing of petabyte-scale image data at the full teravoxel rates of modern imaging cameras. The software opens new avenues for biological discoveries through large-scale imaging experiments., (© 2024. The Author(s).)
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- 2024
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3. Impact of 25 Years of Mobile Health Tools for Pain Management in Patients With Chronic Musculoskeletal Pain: Systematic Review.
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Shi JL and Sit RW
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- Humans, Patient Compliance statistics & numerical data, Musculoskeletal Pain therapy, Telemedicine, Chronic Pain therapy, Pain Management methods, Mobile Applications
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Background: Mobile technologies are increasingly being used in health care and public health practice for patient communication, monitoring, and education. Mobile health (mHealth) tools have also been used to facilitate adherence to chronic musculoskeletal pain (CMP) management, which is critical to achieving improved pain outcomes, quality of life, and cost-effective health care., Objective: The aim of this systematic review was to evaluate the 25-year trend of the literature on the adherence, usability, feasibility, and acceptability of mHealth interventions in CMP management among patients and health care providers., Methods: We searched the PubMed, Cochrane CENTRAL, MEDLINE, EMBASE, and Web of Science databases for studies assessing the role of mHealth in CMP management from January 1999 to December 2023. Outcomes of interest included the effect of mHealth interventions on patient adherence; pain-specific clinical outcomes after the intervention; and the usability, feasibility, and acceptability of mHealth tools and platforms in chronic pain management among target end users., Results: A total of 89 articles (26,429 participants) were included in the systematic review. Mobile apps were the most commonly used mHealth tools (78/89, 88%) among the included studies, followed by mobile app plus monitor (5/89, 6%), mobile app plus wearable sensor (4/89, 4%), and web-based mobile app plus monitor (1/89, 1%). Usability, feasibility, and acceptability or patient preferences for mHealth interventions were assessed in 26% (23/89) of the studies and observed to be generally high. Overall, 30% (27/89) of the studies used a randomized controlled trial (RCT), cohort, or pilot design to assess the impact of the mHealth intervention on patients' adherence, with significant improvements (all P<.05) observed in 93% (25/27) of these studies. Significant (judged at P<.05) between-group differences were reported in 27 of the 29 (93%) RCTs that measured the effect of mHealth on CMP-specific clinical outcomes., Conclusions: There is great potential for mHealth tools to better facilitate adherence to CMP management, and the current evidence supporting their effectiveness is generally high. Further research should focus on the cost-effectiveness of mHealth interventions for better incorporating these tools into health care practices., Trial Registration: International Prospective Register of Systematic Reviews (PROSPERO) CRD42024524634; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=524634., (©Jenny Lin-Hong Shi, Regina Wing-Shan Sit. Originally published in the Journal of Medical Internet Research (https://www.jmir.org), 16.08.2024.)
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- 2024
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4. Efficacy of Mobocertinib and Amivantamab in Patients With Advanced Non-Small Cell Lung Cancer With EGFR Exon 20 Insertions Previously Treated With Platinum-Based Chemotherapy: An Indirect Treatment Comparison.
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Ou SI, Prawitz T, Lin HM, Hong JL, Tan M, Proskorovsky I, Hernandez L, Jin S, Zhang P, Lin J, Patel J, Nguyen D, and Neal JW
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- Humans, Male, Female, Middle Aged, Aged, Acrylamides therapeutic use, Adult, Mutation, Carbazoles therapeutic use, Treatment Outcome, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Aged, 80 and over, Anilides, Aniline Compounds, Indoles, Pyrimidines, Carcinoma, Non-Small-Cell Lung drug therapy, Carcinoma, Non-Small-Cell Lung genetics, Carcinoma, Non-Small-Cell Lung pathology, Carcinoma, Non-Small-Cell Lung mortality, Lung Neoplasms drug therapy, Lung Neoplasms genetics, Lung Neoplasms pathology, Lung Neoplasms mortality, ErbB Receptors genetics, Exons genetics, Quinolines therapeutic use
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Introduction: Exon 20 insertions (ex20ins) mutations of the EGFR gene account for 1% to 2% of all non-small-cell lung cancers (NSCLCs). Targeted therapies have been developed to treat this cancer type but have not been studied in head-to-head trials. Our objective was to use a matching-adjusted indirect comparison (MAIC) to assess the efficacy of mobocertinib and amivantamab in patients with NSCLC EGFR ex20ins mutations who were previously treated with platinum-based chemotherapy., Materials and Methods: An unanchored MAIC was conducted to estimate the treatment effects of mobocertinib and amivantamab using individual-level data from the mobocertinib phase I/II single-arm trial (NCT02716116) and published data from the amivantamab single-arm CHRYSALIS trial (NCT02609776). Confirmed overall response rate (cORR), progression-free survival (PFS), overall survival (OS), and duration of response (DoR) were assessed., Results: Both trials were comparable in terms of study population, study design, and outcome definitions and included 114 patients who received mobocertinib and 114 patients who received amivantamab. After MAIC weighting, all reported baseline characteristics were balanced between mobocertinib and amivantamab. The weighted odds ratio (OR) [95% confidence interval (CI)] comparing mobocertinib to amivantamab was 0.56 (0.30-1.04) for independent review committee (IRC)-assessed cORR and 0.98 (0.53-1.82) for investigator (INV)-assessed cORR. The weighted hazard ratio (HR) comparing mobocertinib to amivantamab was 0.74 (0.51-1.07) for IRC-assessed PFS, 0.92 (0.57-1.48) for OS, and 0.59 (0.30-1.18) for INV-assessed DoR., Conclusion: MAIC analysis showed that mobocertinib and amivantamab had similar efficacy in patients with NSCLC harboring EGFR ex20ins mutations whose disease progressed during or after platinum-based chemotherapy. These findings may benefit patients by supporting future treatment options., (Copyright © 2023. Published by Elsevier Inc.)
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- 2024
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5. Real-world perioperative treatment patterns and burden of recurrent disease in patients with high-risk endometrial cancer: a SEER-Medicare study.
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Prabhu VS, Kponee-Shovein K, Cheng M, Hong JL, Song Y, Sun Y, Hilts A, Hua Q, Lichfield J, and Duska LR
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- Humans, Female, United States, Aged, Aged, 80 and over, Neoplasm Staging, Insurance Claim Review, Chemotherapy, Adjuvant economics, Perioperative Care economics, Salpingo-oophorectomy economics, Neoadjuvant Therapy statistics & numerical data, Endometrial Neoplasms pathology, Endometrial Neoplasms surgery, Endometrial Neoplasms economics, Endometrial Neoplasms mortality, Endometrial Neoplasms therapy, Medicare economics, SEER Program, Neoplasm Recurrence, Local, Hysterectomy economics
- Abstract
Objectives: To elucidate unmet needs in high-risk endometrial cancer (EC), this study described perioperative treatment patterns in Medicare beneficiaries with high-risk EC and quantified the impact of disease recurrence on clinical and economic outcomes among patients receiving adjuvant therapy., Methods: Patients aged ≥66 years with high-risk EC (stage I/II EC of non-endometrioid histology or stage III/IVA EC of any histology) receiving hysterectomy with bilateral salpingo-oophorectomy from SEER-Medicare data (2007-2019) were identified; perioperative treatment patterns were described. Post-operative treatment patterns were described among patients receiving adjuvant therapy; overall survival (OS), all-cause and EC-related healthcare resource utilization and costs were evaluated from recurrence date (using a claims-based algorithm developed with clinical input) for recurrent patients and from a frequency-matched date for non-recurrent patients., Results: Of 2,279 patients receiving EC surgery, 3.1% received neoadjuvant therapy and 55.3% received adjuvant therapy. Among 1,199 patients receiving adjuvant therapy, systemic adjuvant therapy with radiation (38.9%) was most common. Median OS was 1.4 years among 378 (31.5%) recurrent patients identified over a median follow-up of 3.7 years. Recurrent patients had significantly higher per-patient-year rates of all-cause outpatient visits (37.7 vs. 22.6), EC-related outpatient visits (14.5 vs. 3.0), and all-cause hospitalizations (1.3 vs. 0.4) than non-recurrent patients, and an excess of $84,562 and $62,128 in all-cause and EC-related annual costs, predominantly driven by hospitalizations., Conclusions: Our findings highlight the considerable clinical and economic burden experienced by patients with high-risk EC experiencing recurrence and emphasize the unmet need for novel therapies in early settings to mitigate this burden.
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- 2024
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6. Response to "NGS, the New Global Standard?"
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Ou SI, Hong JL, Christopoulos P, Lin HM, Vincent S, Churchill EN, Soeda J, Kazdal D, Thomas M, and Stenzinger A
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- 2023
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7. Real-World Response and Outcomes in Patients With NSCLC With EGFR Exon 20 Insertion Mutations.
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Ou SI, Lin HM, Hong JL, Yin Y, Jin S, Lin J, Mehta M, Nguyen D, and Neal JW
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Introduction: This study describes treatment patterns and outcomes in patients with NSCLC with EGFR exon 20 insertions ( EGFRex20ins ) in the United States., Methods: The Flatiron Health electronic health record database was used to select three cohorts among patients diagnosed with NSCLC with EGFRex20ins (January 1, 2011-February 29, 2020): (1) first-line (1L) or patients receiving 1L therapy after documented EGFRex20ins ; (2) second or later-line (≥2L) or patients receiving ≥2L therapy after documented EGFRex20ins ; and (3) ≥2L postplatinum trial-aligned, or ≥2L patients previously treated with platinum chemotherapy whose baseline characteristics aligned with key eligibility criteria (initiating new treatment after documented EGFRex20ins and ≥1 previous treatment excluding mobocertinib or amivantamab) of the mobocertinib trial NCT02716116. Real-world end points were confirmed overall response rate, overall survival, and progression-free survival., Results: Of 237 patients with EGFRex20ins -mutated NSCLC, 129 and 114 patients were included in the 1L and ≥2L cohorts, respectively. In 1L patients, platinum chemotherapy plus nonplatinum chemotherapy (31.0%) and EGFR tyrosine kinase inhibitors (28.7%) were the most common regimens. In ≥2L patients, immuno-oncology monotherapy (28.1%) and EGFR tyrosine kinase inhibitors (17.5%) were the most common index treatments. For any 1L, ≥2L, and ≥2L postplatinum trial-aligned patients, the confirmed overall response rate was 18.6%, 9.6%, and 14.0%, respectively; the median overall survival was 17.0, 13.6, and 11.5 months; the median progression-free survival was 5.2, 3.7, and 3.3 months, respectively., Conclusions: The outcomes for patients with NSCLC with EGFRex20ins were poor. This real-world study provides a benchmark on treatment outcomes in this patient population and highlights the unmet need for improved therapeutic options., (© 2023 by the International Association for the Study of Lung Cancer.)
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- 2023
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8. Epidemiology, Disease Course, and Clinical Outcomes of Perianal Fistulas and Fissures Crohn's Disease: A Nationwide Population-Based Study in Taiwan.
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Weng MT, Lin KL, Huang YL, Karki C, Hong JL, Bennett D, Arnold Chan K, and Wei SC
- Abstract
Background: Population-based data on the course of perianal disease in East Asian populations with Crohn's disease (CD) are limited. This study examined the prevalence, clinical course, and compared the outcomes of CD patients with perianal CD (pCD) versus without pCD in Taiwan., Methods: A nationwide population-based study was implemented from 2000 to 2017 by using the Taiwan National Health Insurance Research Database., Results: Of 2424 patients with CD, 358 (14.8%) patients with pCD were identified. Most patients with CD and pCD were men (79.3%). The mean age at CD diagnosis was lower in patients with pCD (33.7 years) than in those without pCD (44.9 years). Approximately half the patients with pCD received the pCD diagnosis at least 6 months before receiving a CD diagnosis. Approximately one-third (121/358) of patients with pCD had recurrent fistula; the median recurrence interval was 239 days. Compared with patients without pCD, patients with pCD had higher mean incidences of hospitalization (7.0 vs 3.8, P < .01), outpatient visits (13 vs 2.9, P < .01), and emergency room visits (10.3 vs 4.4, P < .01) over a 15-year period. Although patients with pCD had higher rates of healthcare utilization, their 15-year mortality rate was lower than that of those without pCD (6.1% vs 17.3%, P < .01)., Conclusions: The period prevalence of pCD in Taiwanese patients with CD was 14.8%. Although patients with pCD required more intensive care and had greater healthcare utilization, they did not have inferior survival outcomes compared with those without pCD., Competing Interests: M.T.W., K.L.L., and Y.L.H. has nothing to disclose. S.C.W. has received consultancy fees from AbbVie, Celltrion, Ferring Pharmaceuticals Inc., Janssen, Pfizer Inc, Takeda, and Tanabe, and speaker fees from AbbVie, Celltrion, Excelsior Biopharma Inc., Ferring Pharmaceuticals Inc., Pfizer Inc, Janssen, Takeda and Tanabe. K.A.C. has received research grants from MSD, Boehringer Ingelheim, and Amgen. D.B., C.K., and J.L.H. are employees of Takeda., (© The Author(s) 2023. Published by Oxford University Press on behalf of Crohn's & Colitis Foundation.)
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- 2023
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9. Distribution and Detectability of EGFR Exon 20 Insertion Variants in NSCLC.
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Ou SI, Hong JL, Christopoulos P, Lin HM, Vincent S, Churchill EN, Soeda J, Kazdal D, Stenzinger A, and Thomas M
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- Humans, Retrospective Studies, ErbB Receptors genetics, Mutation, Exons genetics, Protein Kinase Inhibitors, Lung Neoplasms genetics, Carcinoma, Non-Small-Cell Lung genetics
- Abstract
Introduction: EGFR exon 20 insertion (ex20ins) mutations represent 5% to 10% of EGFR mutations in NSCLC. Identifying patients with EGFR ex20ins is challenging owing to the limited coverage of polymerase chain reaction (PCR) assays and the relatively recent use of next-generation sequencing (NGS). This study analyzes the spectrum of EGFR ex20ins variants in a large patient population from a global clinical trial and several real-world cohorts and the ability of PCR kits to identify these alterations., Methods: We conducted this retrospective analysis in patients with NSCLC who underwent NGS or other sequencing testing and had a known EGFR ex20ins mutation. Patients were gathered from a clinical trial (NCT02716116), a chart review study in Germany, and the LC-SCRUM-Japan, GENIE, and U.S. COTA databases. Proportions of patients with ex20ins variants that could have been detected by six commercially available and widely used PCR kits were calculated in each data set., Results: Overall, 636 patients with NSCLC harboring EGFR ex20ins mutations were included in this analysis and 104 unique EGFR ex20ins variants were identified across the data sources. The proportion of patients whose ex20ins could have been detected by any PCR test alone ranged from 11.8% to 58.9% across the data sources., Conclusions: Our findings suggest that the PCR tests evaluated would have missed more than 40% of patients with NSCLC harboring EGFR ex20ins mutations. NGS-based genetic testing is preferable than standard PCR assays and can substantially improve the identification of the diverse profile of EGFR ex20ins variants in NSCLC., (Copyright © 2023 International Association for the Study of Lung Cancer. Published by Elsevier Inc. All rights reserved.)
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- 2023
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10. Comparative effectiveness of mobocertinib and standard of care in patients with NSCLC with EGFR exon 20 insertion mutations: An indirect comparison.
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Ou SI, Lin HM, Hong JL, Yin Y, Jin S, Lin J, Mehta M, Zhang P, Nguyen D, and Neal JW
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- Humans, Platinum therapeutic use, Mutagenesis, Insertional, Standard of Care, Protein Kinase Inhibitors therapeutic use, ErbB Receptors genetics, Exons, Mutation, Carcinoma, Non-Small-Cell Lung drug therapy, Lung Neoplasms drug therapy
- Abstract
Introduction: Mobocertinib is a novel, first-in-class, irreversible, oral epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI) designed to selectively target in-frame EGFR exon 20 insertions (ex20ins). Comparative effectiveness data for mobocertinib versus real-world treatments are lacking in this rare population. This study compared data for mobocertinib reported in a Phase I/II single-arm clinical trial with an external control group consisting of patients who received available treatment in the real-world setting in the United States (US)., Materials and Methods: The mobocertinib group included platinum-pretreated patients with advanced EGFR ex20ins non-small cell lung cancer (NSCLC) receiving mobocertinib 160 mg QD in an ongoing, single-arm, phase 1/2 clinical trial (NCT02716116; n = 114). The real-world data (RWD) group included platinum-pretreated patients with advanced EGFR ex20ins-mutant NSCLC from the Flatiron Health database (n = 50). Inverse probability treatment weighting based on the propensity score method controlled for potential confounding between groups. Confirmed overall response rate (cORR), progression-free survival (PFS), and overall survival (OS) were compared between groups., Results: After weighting, baseline characteristics were balanced. Patients in the RWD group received EGFR TKI (20 %), immuno-oncology therapy (40 %), or any regimens containing chemotherapy (40 %) in the second- or later-line setting. In the mobocertinib and RWD groups, respectively, cORR was 35.1 % and 11.9 % (odds ratio: 3.75 [95 % confidence interval (CI): 2.05, 6.89]); median PFS was 7.3 and 3.3 months (hazard ratio [HR]: 0.57 [95 % CI: 0.36, 0.90]); and median OS was 24.0 and 12.4 months (HR: 0.53 [95 % CI: 0.33, 0.83]) after weighting., Discussion: Mobocertinib showed substantially improved outcomes versus an external control group using available therapies in platinum-pretreated patients with EGFR ex20ins-mutant NSCLC. In the absence of comparative evidence from randomized trials, these findings help elucidate potential benefits of mobocertinib in this rare population., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 The Authors. Published by Elsevier B.V. All rights reserved.)
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- 2023
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11. Indirect comparison of mobocertinib and real-world therapies for pre-treated non-small cell lung cancer with EGFR exon 20 insertion mutations.
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Christopoulos P, Prawitz T, Hong JL, Lin HM, Hernandez L, Jin S, Tan M, Proskorovsky I, Lin J, Zhang P, Patel JD, Ou SI, Thomas M, and Stenzinger A
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- Humans, Retrospective Studies, Mutagenesis, Insertional, Prognosis, Protein Kinase Inhibitors therapeutic use, Mutation, ErbB Receptors genetics, Exons, Carcinoma, Non-Small-Cell Lung drug therapy, Lung Neoplasms drug therapy
- Abstract
Objectives: Mobocertinib, a novel oral epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor, is available for the treatment of non-small cell lung cancer (NSCLC) with EGFR exon 20 insertion (ex20ins) mutations after platinum chemotherapy. We performed an indirect comparison of clinical trial data and real-world data (RWD) to determine the relative efficacy of mobocertinib vs. other treatments for these patients., Materials and Methods: Data on the efficacy of mobocertinib from a phase I/II trial (NCT02716116) were compared to RWD from a retrospective study in 12 German centers using inverse probability of treatment weighting to adjust for age, sex, Eastern Cooperative Oncology Group score, smoking status, presence of brain metastasis, time from advanced diagnosis, and histology. Tumor response assessment was based on RECIST v1.1., Results: The analysis included 114 patients in the mobocertinib group and 43 in the RWD group. The confirmed overall response rate (cORR) according to investigator assessment was 0% for standard treatments and 35.1% (95% confidence interval [CI], 26.4-44.6) for mobocertinib (p < 0.0001). Compared to standard regimens in the weighted population, mobocertinib prolonged overall survival (OS, median [95% CI] = 9.8 [4.3-13.7] vs. 20.2 [14.9-25.3] months; hazard ratio [HR] = 0.42 [0.25-0.69], p = 0.0035), progression-free survival (PFS, median [95% CI] = 2.6 [1.5-5.7] vs. 7.3 [5.6-8.8] months; HR = 0.28 [0.18-0.44], p < 0.0001), and time to treatment discontinuation (median [95% CI] = 2.1 [1.2-3.1] vs. 7.4 [6.4-8.5] months; HR = 0.34 [0.18-0.65], p = 0.0004)., Conclusion: Mobocertinib was associated with an improved cORR and prolonged PFS and OS compared to standard treatments for patients with EGFR ex20ins-positive NSCLC previously treated with platinum-based chemotherapy., Competing Interests: Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: PC: research funding from AstraZeneca, Amgen, Merck, Novartis, Roche, and Takeda, speaker’s honoraria from AstraZeneca, Pfizer, Novartis, Roche, Takeda, support for attending meetings from AstraZeneca, Daiichi Sankyo, Eli Lilly, Gilead, Janssen, Novartis, Takeda, and personal fees for participating to advisory boards from Boehringer Ingelheim, Chugai, Pfizer and Roche. TP: employee of Evidera/PPD; ownership of stocks from PPD and Thermo Fisher. JLH: employee of Takeda. HML: employee of Takeda. LH: employee of Takeda. SJ: employee of Takeda. MTa: employee of Evidera/PPD; ownership of stocks from PPD and Thermo Fisher. IP: employee of Evidera/PPD; ownership of stocks from PPD and Thermo Fisher. JL: employee of Takeda. PZ: employee of Takeda. JDP: research funding from BMS, consulting fees from AbbVie, AstraZeneca, Takeda. SHO: research funding from Takeda; speaker’s honoraria from Pfizer, AstraZeneca, Takeda/ARIAD, Roche/Genentech, Daiichi Sankyo, and Janssen/JNJ; ownership of stocks from Turning Point Therapeutics and Elevation Oncology. MT: research funding from AstraZeneca, Bristol-Myers Squibb, Merck, Roche, and Takeda; speaker’s honoraria from AstraZeneca, BeiGene, Bristol-Myers Squibb, Boehringer Ingelheim, Celgene, Chugai, Daiichi Sankyo, GlaxoSmithKline, Janssen Oncology, Eli Lilly, Merck, MSD, Novartis, Pfizer, Roche, Sanofi, and Takeda; non-financial support from AstraZeneca, Bristol-Myers Squibb, Janssen Oncology, MSD, Pfizer, Roche, and Takeda. AS: research funding from Bayer, Bristol-Myers Squibb, Chugai, and Incyte; speaker’s honoraria from Aignostics, Amgen, Astra Zeneca, Bayer, BMS, Eli Lilly, Illumina, Incyte, Janssen, MSD, Novartis, Pfizer, Qlucore, Roche, Seagen, Takeda, and Thermo Fisher., (Copyright © 2023 The Authors. Published by Elsevier B.V. All rights reserved.)
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- 2023
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12. Pericardial paraganglioma detected with contrast-enhanced CT, MRI, and 18 F-FDG PET/CT findings.
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Li GY, Hong JL, Wang SY, Xie Z, Liu ET, and Wang SX
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- Humans, Fluorodeoxyglucose F18, Positron-Emission Tomography, Magnetic Resonance Imaging, Radiopharmaceuticals, Positron Emission Tomography Computed Tomography, Paraganglioma
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- 2023
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13. Comparative Transcriptomic and Metabolomic Analyses Reveal the Regulatory Effect and Mechanism of Tea Extracts on the Biosynthesis of Monascus Pigments.
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Li WL, Hong JL, Lu JQ, Tong SG, Ni L, Liu B, and Lv XC
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Monascus pigments (MPs) are natural edible pigments with high safety and strong function, which have been widely used in food and health products. In this study, different types of tea extracts (rich in polyphenols) were used to regulate the biosynthesis of MPs. The results showed that 15% ethanol extract of pu-erh tea (T11) could significantly increase MPs production in liquid fermentation of Monaco's purpureus M3. Comparative transcriptomic and metabolomic analyses combined with reverse transcription-quantitative polymerase chain reaction (RT-qPCR) were used to further explore the regulatory mechanism of T11 on the biosynthesis of MPs. Comparative transcriptomic analysis showed that there were 1503 differentially expressed genes (DEGs) between the Con group and the T11 group, which were mainly distributed in carbohydrate metabolism, amino acid metabolism, energy metabolism, lipid metabolism, metabolism of terpenoids and polyketides, etc. A total of 115 differential metabolites (DMs) identified by metabolomics between the Con and T11 groups were mainly enriched in glutathione metabolism, starch and sucrose metabolism, alanine, aspartic acid and glutamate metabolism and glycine, serine and threonine metabolism, etc. The results of metabolomics were basically consistent with those of gene transcriptomics, indicating that the regulatory effect of T11 on the biosynthesis of MPs is mainly achieved through affecting the primary metabolic pathway, providing sufficient energy and more biosynthetic precursors for secondary metabolism. In this study, tea extracts with low economic value and easy access were used as promoters of MPs biosynthesis, which may be conducive to the application of MPs in large-scale industrial production. At the same time, a more systematic understanding of the molecular regulatory mechanism of Monascus metabolism was obtained through multi-omics analysis.
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- 2022
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14. The impact of TP53 co-mutations and immunologic microenvironment on outcome of lung cancer with EGFR exon 20 insertions.
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Christopoulos P, Kluck K, Kirchner M, Lüders H, Roeper J, Falkenstern-Ge RF, Szewczyk M, Sticht F, Saalfeld FC, Wesseler C, Hackanson B, Dintner S, Faehling M, Kuon J, Janning M, Kauffmann-Guerrero D, Kazdal D, Kurz S, Eichhorn F, Bozorgmehr F, Shah R, Tufman A, Wermke M, Loges S, Brueckl WM, Schulz C, Misch D, Frost N, Kollmeier J, Reck M, Griesinger F, Grohé C, Hong JL, Lin HM, Budczies J, Stenzinger A, and Thomas M
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- Brain Neoplasms genetics, Brain Neoplasms secondary, Exons, Humans, Mutation, Platinum therapeutic use, Protein Kinase Inhibitors therapeutic use, Retrospective Studies, Tumor Microenvironment genetics, Antineoplastic Agents therapeutic use, Carcinoma, Non-Small-Cell Lung drug therapy, Carcinoma, Non-Small-Cell Lung genetics, Carcinoma, Non-Small-Cell Lung pathology, ErbB Receptors genetics, Lung Neoplasms drug therapy, Lung Neoplasms genetics, Lung Neoplasms pathology, Tumor Suppressor Protein p53 genetics
- Abstract
Background: EGFR exon20 insertions (ex20ins) are targeted by novel compounds in non-small-cell lung cancer (NSCLC). However, data about outcome under conventional therapies and the influence of molecular features are scarce., Patients and Methods: We retrospectively analysed 118 patients with evaluation of radiologic response based on RECIST v1.1. TP53 status was available for 88 cases., Results: Platinum doublets and chemoimmunotherapy showed similar response rates (20-25%), disease control rates (80%) and median progression-free survival (mPFS, ≈7 months), which were longer compared to monochemotherapy (9%, 59%, 4.1 months), EGFR inhibitors (0%, 46%, 3.0) and PD-(L)1 inhibitors (0%, 30%, 2.1; p < 0.05). Overall survival (OS) was not dependent on the choice of first-line treatment, but related to more lines of systemic therapy (p < 0.05). TP53 mutations and brain metastases were associated with shorter PFS under platinum doublets and EGFR inhibitors (HR 3.3-6.1, p < 0.01), and shorter OS for patients receiving both treatments (p < 0.05). More tumour CD8
+ and less Th1 cells were associated with longer OS independent of brain and TP53 status (p < 0.01). No difference in outcome was noted according to the ex20ins site and use of pemetrexed (vs. other cytotoxics) or bevacizumab. Long-lasting responses (>1 year) occasionally occurred under EGFR inhibitors for both 'near-' and 'far-loop' variants., Conclusions: Platinum doublets and chemoimmunotherapy have the highest activity with ORR of 20-25% and mPFS of approximately 7 months, regardless of the cytotoxic partner, while PD-(L)1 inhibitors show limited efficacy. TP53 mutations, brain metastases and a lower tumour CD8/Th1-cell ratio are independently associated with shorter survival., Competing Interests: Conflict of interest statement PC: research funding from Amgen, AstraZeneca, Boehringer Ingelheim, Novartis, Roche, Takeda, and advisory board/lecture fees from AstraZeneca, Boehringer Ingelheim, Chugai, Daiichi Sankyo, Gilead, Novartis, Pfizer, Roche, Takeda. JR: lecture fees from AstraZeneca, Boehringer Ingelheim. FCS: research funding from Roche; non-financial support from Lilly; personal fees from Takeda, and Pfizer, outside the submitted work. BH: advisory board/lecture fees from AstraZeneca, Boehringer Ingelheim, BMS, MSD, Roche, Pfizer. JK: research funding from AstraZeneca and Celgene. MJ: speaker's honoraria from Roche, Boehringer, and travel grants from Daiichi Sankyo. DK: advisory boards/speakers honoraria from AstraZeneca, BMS, Boehringer Ingelheim, GSK, MSD, Novartis, Pfizer, Roche, Takeda. FE: speaker's honoraria from Roche. FB: research funding from AstraZeneca, BMS and Roche, and travel grants from BMS and MSD. RS: research funding from BMS, and speaker's honoraria from AstraZeneca and Roche. AT: research funding from BMS. MW: research funding from Roche; Personal fees from Roche, AstraZeneca, Boehringer, Kite, Novartis, Merck, BMS, Heidelberg Pharma; Non-financial support from AstraZeneca, BMS, Glenmark; outside the submitted work. SL: advisory board, speaker's honoraria and travel support from BerGenBio, Novartis, Lilly, BMS, MSD, Roche, Celgene, Takeda, AstraZeneca, Sanofi, as well as research funding from Roche, BMS, BerGenBio. WB: consulting fees from AstraZeneca, Boehringer Ingelheim, BMS, Lilly, MSD, Pfizer, Roche, Sanofi, honoraria for lectures from AstraZeneca, Boehringer Ingelheim, BMS, Lilly, MSD, Pfizer, Roche, Sanofi. Travel grants from AstraZeneca, Boehringer Ingelheim, MSD, Roche. CS: advisory board honoraria from AstraZeneca, Boehringer Ingelheim, BMS, MSD, Novartis, Roche, Pfizer, Takeda. Speaker's honoraria from AstraZeneca, Boehringer, Lilly, Roche, MSD, Takeda. DM: advisory board/lecture fees from AstraZeneca, BMS, Boehringer Ingelheim, Lilly, MSD, Novartis, Roche, Sanofi and Takeda (no personal honoraria) NF: advisory board/lecture fees from AbbVie, AstraZeneca, BMS, Boehringer Ingelheim, Pfizer, Roche, MSD, Takeda. JK: advisory board member without receiving any personal fees for Roche Pharma, Boehringer Ingelheim, BMS, MSD, Amgen, Lilly and Takeda. MR: advisory board/lecture fees from Amgen, AstraZeneca, BMS, Boehringer, Lilly, Merck, MSD, Novartis, Pfizer, Roche, Samsung. FG: grants and personal fees from AstraZeneca, Boehringer Ingelheim, BMS, Eli Lilly, MSD, Novartis, Pfizer, Roche, Takeda, as well as personal fees from AbbVie, Tesaro/GSK, Blueprint Medicines, Amgen. CG: advisory board/lecture fees from Amgen, AstraZeneca, BMS, Boehringer Ingelheim, Eli Lilly, Takeda, MSD, Novartis, Pfizer, Roche, AbbVie, Tesaro/GSK and Blueprints Medicines. AS: advisory board honoraria from BMS, AstraZeneca, ThermoFisher, Novartis, speaker's honoraria from BMS, Illumina, AstraZeneca, Novartis, ThermoFisher, MSD, Roche, and research funding from Chugai and BMS. MT: advisory board honoraria from Novartis, Eli Lilly, BMS, MSD, Roche, Celgene, Takeda, AbbVie, Boehringer Ingelheim, Pfizer, speaker's honoraria from Eli Lilly, MSD, Takeda, Pfizer, research funding from AstraZeneca, BMS, Celgene, Novartis, Roche, Takeda, and travel grants from BMS, MSD, Novartis, Boehringer. All remaining authors have declared no conflicts of interest., (Copyright © 2022 Elsevier Ltd. All rights reserved.)- Published
- 2022
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15. The Singularity Paramagnetic Peak of Bi 0.3 Sb 1.7 Te 3 with p-type Surface State.
- Author
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Huang SM, Wang PC, Chen PC, Hong JL, Cheng CM, Jian HL, Yan YJ, Yu SH, and Chou MMC
- Abstract
The magnetization measurement was performed in the Bi
0.3 Sb1.7 Te3 single crystal. The magnetic susceptibility revealed a paramagnetic peak independent of the experimental temperature variation. It is speculated to be originated from the free-aligned spin texture at the Dirac point. The ARPES reveals that the Fermi level lies below the Dirac point. The Fermi wavevector extracted from the de Haas-van Alphen oscillation is consistent with the energy dispersion in the ARPES. Our experimental results support that the observed paramagnetic peak in the susceptibility curve does not originate from the free-aligned spin texture at the Dirac point., (© 2022. The Author(s).)- Published
- 2022
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16. Antiphospholipid Syndrome-Induced Leriche Syndrome in a Man with Lower Limbs Sensory and Motor Defect.
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Hong JL, Hou YT, Lin PC, Chen YL, Chien DS, Yiang GT, and Wu MY
- Abstract
Antiphospholipid syndrome (APS) is an autoimmune disorder with characteristics of arterial and/or venous thrombosis due to hypercoagulation status. Although deep vein thrombosis is common, the involvement of arterial thrombosis is more dangerous and poses a high risk of complications. Acute aorto-iliac occlusive disease (AIOD, known as Leriche syndrome) is severe arterial thrombosis that is associated with high morbidity and mortality rates. Severe acute occlusion may cause spinal cord ischemia, leading to neurological defects, such as acute onset of paraplegia. Co-occurrence of acute aorto-iliac occlusive disease and antiphospholipid syndrome is rare and may present with atypical symptoms mimicking other diseases, including chronic ulcers, musculoskeletal events, and pulmonary diseases. In patients with weak femoral pulses and recurrent thrombotic events, co-occurrence of APS and AIOD should be taken into consideration. Here, we describe a rare case of co-occurrence of APS and AIOD presenting with acute lower leg weakness and numbness. Timely thrombectomies and bilateral common iliac artery stentings rescued distal blood flow. We highlight the clinical features and early diagnosis of co-occurrence of APS and AIOD in order to prevent catastrophic complications. The detailed mechanism and pathogenesis of antiphospholipid syndrome-induced acute aorto-iliac occlusive disease are also discussed.
- Published
- 2021
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17. Adherence to Statins Use and Risk of Dementia among Patients with Diabetes and Comorbid Hyperlipidemia.
- Author
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Chang CY, Lin FJ, Hong JL, and Wu CH
- Subjects
- Humans, Retrospective Studies, Dementia epidemiology, Diabetes Mellitus epidemiology, Hydroxymethylglutaryl-CoA Reductase Inhibitors, Hyperlipidemias drug therapy, Hyperlipidemias epidemiology
- Abstract
The results from previous observational studies and clinical trials about the neuroprotective benefits of statins use for the prevention of dementia are contradictory. It is unclear whether the neuroprotective benefits are experienced in a specific group with a higher risk of dementia, such as patients with concurrent diabetes and hyperlipidemia. We aimed to examine the association between adherence to statins and the risk of dementia among patients with diabetes and comorbid hyperlipidemia. This was a retrospective study with a new user design. We used data from the Taiwan National Health Insurance Research Database to identify patients with diabetes and comorbid hyperlipidemia. The occurrence of dementia was the study outcome. The adherence to statins was the exposure, which was measured by the proportion of days covered (PDC) of statins. The good adherence included patients with ≥80% PDC of statins. Cox proportional hazards regression models were used to evaluate the association between adherence to statins and dementia. Among 18,125 included individuals with diabetes and comorbid hyperlipidemia, 33.5% had good adherence to statins. Compared to poor adherence to statins, good adherence to statins was not significantly associated with a reduced risk of dementia (hazard ratio = 0.94; 95%confidence interval = 0.70-1.24) among patients with diabetes and comorbid hyperlipidemia. Good adherence to statins was not found to be associated with the risk of dementia among patients with diabetes and comorbid hyperlipidemia in Taiwan. Future studies with a more diverse study population are needed to evaluate the neuroprotective effects of statins use on dementia prevention.
- Published
- 2021
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18. Observation of Landau Level-Dependent Aharonov-Bohm-Like Oscillations in a Topological Insulator.
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Huang SM, Lin C, You SY, Chen PC, Hong JL, Wong JF, Yan YJ, Yu SH, and Chou MMC
- Abstract
We study the quantum oscillations in the BiSbTe
3 topological insulator. In addition to the Shubnikov-de Haas (SdH) oscillation, the Aharonov-Bohm-like (ABL) oscillations are also observed. The ABL oscillation period is constant at each Landau level (LL) which is determined from the SdH oscillation. The shorter ABL oscillation periods are observed at lower LLs. The oscillation period is proportional to the square root of the LL at temperatures. The ratio of the ABL oscillation period to the effective mass is weak LL dependence. The LL-dependent ABL oscillation might originate from the LL-dependent effective mass.- Published
- 2020
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19. Hypoglycemic and hypolipidemic activities of Grifola frondosa polysaccharides and their relationships with the modulation of intestinal microflora in diabetic mice induced by high-fat diet and streptozotocin.
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Guo WL, Deng JC, Pan YY, Xu JX, Hong JL, Shi FF, Liu GL, Qian M, Bai WD, Zhang W, Liu B, Zhang YY, Luo PJ, Ni L, Rao PF, and Lv XC
- Subjects
- Animals, Body Weight drug effects, Cecum drug effects, Cecum metabolism, Diabetes Mellitus, Experimental chemically induced, Diabetes Mellitus, Experimental metabolism, Diabetes Mellitus, Experimental pathology, Fatty Acids, Volatile metabolism, Glucose metabolism, Lipid Metabolism drug effects, Liver drug effects, Liver metabolism, Liver pathology, Male, Mice, Diabetes Mellitus, Experimental microbiology, Diet, High-Fat adverse effects, Fungal Polysaccharides pharmacology, Gastrointestinal Microbiome drug effects, Grifola chemistry, Hypoglycemic Agents pharmacology, Hypolipidemic Agents pharmacology
- Abstract
This study aimed to investigate the hypoglycemic and hypolipidemic activities of polysaccharides from Grifola frondosa (GFP) in diabetic mice induced by high-fat diet (HFD) and streptozotocin (STZ). Results showed that oral administration of GFP markedly reduced the serum levels of fasting blood glucose (FBG), oral glucose tolerance (OGT), cholesterol (TC), triglyceride (TG) and low-density lipoprotein cholesterol (LDL-C), and significantly decreased the hepatic levels of TC, TG and free fatty acids (FFA). Meanwhile, high-dose of GFP supplementation (900 mg/kg day) also showed powerful effects on moderating the composition of intestinal microflora in diabetic mice, especially altering the functionally relevant intestinal microbial phylotypes. Spearman's correlation network analysis revealed that key microbial phylotypes responding to GFP intervention were strongly correlated with the glucose and lipid metabolic disorders associated parameters. Moreover, GFP treatment regulated mRNA expression levels of the genes responsible for hepatic glucose and lipid metabolism. It is noteworthy that GFP treatment markedly increased mRNA expression of cholesterol 7α-hydroxylase (CYP7A1) and bile salt export pump (BSEP), suggesting an enhancement of bile acids (BAs) synthesis and excretion in liver. These findings demonstrated that GFP could prevent hyperglycemia and hyperlipidemia in diabetic mice by altering gut microbiota and regulating hepatic glycolipid metabolism related genes, and therefore could be used as potential functional food ingredients for the prevention or treatment of hyperglycemia and hyperlipidemia., Competing Interests: Declaration of Competing Interest The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2019 Elsevier B.V. All rights reserved.)
- Published
- 2020
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20. Comparative transcriptomic analysis reveals the regulatory effects of inorganic nitrogen on the biosynthesis of Monascus pigments and citrinin.
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Hong JL, Wu L, Lu JQ, Zhou WB, Cao YJ, Lv WL, Liu B, Rao PF, Ni L, and Lv XC
- Abstract
Monascus spp. and its secondary metabolites have been widely applied in foods and medicines for thousands of years in eastern Asia. Nitrogen sources are essential nutrients for the growth and metabolism of Monascus spp. Our previous study found that inorganic nitrogen sources (especially NH
4 Cl and NH4 NO3 ) promoted the biosynthesis of Monascus pigments (MPs) and inhibited the production of citrinin. The objective of the present study was to investigate the regulatory mechanism of inorganic nitrogen on the biosynthesis of MPs and citrinin by the comparative transcriptional approach (RNA sequencing combined with RT-qPCR). Results indicated that the submerged fermentation of M. purpureus M3103 with NH4 Cl or NH4 NO3 as the sole nitrogen source can significantly increase the yields of MPs (especially for Monascus orange and red pigments) and decrease citrinin production, compared with the organic nitrogen source (peptone group). Comparative transcriptomic profiling by RNA sequencing found that the numbers of differentially expressed genes (DEGs) between different experimental groups-M group (peptone group) vs. ML group (NH4 Cl group), and M group (peptone group) vs. MX group (NH4 NO3 group), were 722 and 1287, respectively. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis revealed that genes involved in carbon and nitrogen metabolism, biosynthesis of amino acids were up-regulated by NH4 Cl and NH4 NO3 , which would produce more biosynthetic precursors for MPs. Whereas, the inorganic nitrogen source (both of NH4 Cl and NH4 NO3 ) down-regulated the expression levels of genes involved in tyrosine metabolism. In addition, NR analysis indicated that the essential genes and transcription factors involved in the biosynthesis pathway of citrinin were down-regulated by NH4 Cl and NH4 NO3 . These results indicated that NH4 Cl or NH4 NO3 as a nitrogen source for M. purpureus M3103 can significantly promote the precursor synthesis of Monascus pigments, but reduce the transcription of polyketide synthase for citrinin, and therefore significantly increase Monascus pigments production and decrease citrinin formation. These findings will facilitate a comprehensive understanding of the regulatory mechanisms of inorganic nitrogen in the biosynthesis of secondary metabolites in M. purpureus , and would benefit the application of M. purpureus in the production of MPs., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (This journal is © The Royal Society of Chemistry.)- Published
- 2020
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21. Corrigendum to 'The regulation mechanisms of soluble starch and glycerol for production of azaphilone pigments in Monascus purpureus FAFU618 as revealed by comparative proteomic and transcriptional analyses' [Food Research International 106: 626-635].
- Author
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Huang ZR, Zhou WB, Yang XL, Tong AJ, Hong JL, Jia RB, Lin J, Li TT, Pan YY, Lv XC, and Liu B
- Published
- 2019
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22. Micro- and Mesoporous Carbons Derived from KOH Activations of Polycyanurates with High Adsorptions for CO 2 and Iodine.
- Author
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Wang ST and Hong JL
- Abstract
The adsorption ability of porous carbons toward contaminants is closely related to the porous structures and the working functional groups. In this aspect, two porous carbons, with the potential use as adsorbents for CO
2 and iodine, were prepared from polycyclotrimerizations (PCTs) of flexible bisphenyl A dicyanate (BPAC) and rigid binaphthalenyl dicyanate (BNC) cyanate ester monomers. Primarily, PCT reactions of BPAC and BNC generated the respective nonporous c-BPAC and c-BNC precursors, which contain high amounts of nitrogen and oxygen heteroatoms. Further KOH activations of c-BPAC and c-BNC produced the respective porous a-BPAC and a-BNC carbons, which mainly contain oxygen heteroatoms. The a-BNC derived from rigid BNC contains both micro- and mesopores and is high in adsorbing both CO2 (6.3 mmol/g) and iodine; in contrast, the microporous a-BPAC is lower in adsorbing CO2 (3.9 mmol/g) and iodine. The effects of molecular flexibility of the starting cyanate ester on the micro- and mesopore distribution as well as the CO2 and iodine adsorption behaviors of the porous carbons are therefore probed in this study., Competing Interests: The authors declare no competing financial interest.- Published
- 2019
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23. Microbial communities and volatile metabolites in different traditional fermentation starters used for Hong Qu glutinous rice wine.
- Author
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Huang ZR, Guo WL, Zhou WB, Li L, Xu JX, Hong JL, Liu HP, Zeng F, Bai WD, Liu B, Ni L, Rao PF, and Lv XC
- Subjects
- Bacteria classification, Bacteria genetics, Bacteria metabolism, Biodiversity, Fungi classification, Fungi genetics, Fungi metabolism, High-Throughput Screening Assays, Mycobiome, Fermentation, Microbiota, Oryza metabolism, Volatile Organic Compounds analysis, Wine analysis, Wine microbiology
- Abstract
Hong Qu glutinous rice wine (HQGRW), as one of the most typical representatives of Chinese rice wine, is generally brewed from glutinous rice by adding two traditional wine fermentation starters-Hong Qu (HQ) and Bai Qu (BQ). The objective of this study was to determine the microbial communities and volatile metabolites of different traditional fermentation starters for HQGRW, and elucidate the potential correlation between microbiota and volatile metabolites. Both heatmap and principal component analysis (PCA) revealed the significant variances in volatile profiles among different wine starters. Microbiological analysis based on high-throughput sequencing (HTS) technology demonstrated that both of bacterial and fungal communities varied significantly in different starters. HQ was dominated mainly by bacteria of Bacillus ginsengihumi (20.17%), Pantoea sp. (10.39%), Elizabethkingia sp. (5.52%), Streptococcus sp. (5.03%) Brevundimonas sp. (3.03%), Rickettsia prowazekii (2.94%), Thermus thermophilus (2.54%), Bacillus amyloliquefaciens (1.48%), Bacillus aryabhattai (1.42%); fungi of Monascus purpureus (39.7%), Aspergillus niger (27.35%), Xeromyces bisporus (8.39%), Aspergillus penicillioides (6.89%), Aspergillus flavus (2.33%) and Pichia farinose (0.79%). By contrast, BQ contained much higher proportions of bacteria of Lactococcus lactis (10.45%), Lactobacillus brevis (9.99%), Pediococcus pentosaceus (8.29%), Weissella paramesenteroides (6.69%), Lactobacillus fermentum (4.83%), Gluconobacter thailandicus (3.93%), Lactobacillus alimentarius (3.59%), fungi of Rhizopus arrhizus (31.47%), Saccharomycopsis fibuligera (27.86%), Aspergillus niger (20.81%), Issatchenkia orientalis (3.79%), Saccharomycopsis malanga (3.15%), Clavispora lusitaniae (2.29%), Candida tropicalis (1.47%), Saccharomyces cerevisiae (1.11%) and Rhizopus microsporus (0.57%). Furthermore, core functional microbiota that might contribute to volatile flavour development was explored through Spearman's correlation-based network analysis. Lactobacillus brevis, Lactobacillus alimentarius, Lactobacillus plantarum and Aspergillus niger were found to be strongly associated with acid compounds (FDR adjusted P < 0.01), while Pichia sp., Candida sp., Monascus purpureus, Lactobacillus brevis and Lactobacillus alimentarius were positively correlated with concentrations of aromatic esters associated with fruity and floral notes (FDR adjusted P < 0.01), implying that these microorganisms might make significant contributions to the flavour of rice wine. These findings demonstrated that the aromatic quality of HQGRW may be critically influenced by the microbiota in traditional fermentation starters. To conclude, this study would contribute to the development of novel defined starter cultures for improving the aromatic quality of HQGRW., (Copyright © 2018 Elsevier Ltd. All rights reserved.)
- Published
- 2019
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24. Preparation of a novel Grifola frondosa polysaccharide-chromium (III) complex and its hypoglycemic and hypolipidemic activities in high fat diet and streptozotocin-induced diabetic mice.
- Author
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Guo WL, Shi FF, Li L, Xu JX, Chen M, Wu L, Hong JL, Qian M, Bai WD, Liu B, Zhang YY, Ni L, Rao PF, and Lv XC
- Subjects
- Animals, Blood Glucose, Diabetes Mellitus, Experimental, Diet, High-Fat, Disease Models, Animal, Lipid Metabolism drug effects, Liver drug effects, Liver metabolism, Male, Mice, Spectrum Analysis, Streptozocin adverse effects, Chromium chemistry, Fungal Polysaccharides chemistry, Grifola chemistry, Hypoglycemic Agents chemistry, Hypoglycemic Agents pharmacology, Hypolipidemic Agents chemistry, Hypolipidemic Agents pharmacology
- Abstract
Polysaccharide from Grifola frondosa is one of the best metal-ion chelating agents because of its structural characteristics and excellent functional activities. In this study, we synthesized and characterized a novel Grifola frondosa polysaccharide-chromium (III) [GFP-Cr(III)] complex. Response surface methodology (RSM) was used to optimize the reaction conditions for the maximum chelation rate of GFP-Cr(III) complex. The optimal reaction conditions obtained from RSM were as follows: concentration of CrCl
3 6.97 mg/mL, pH 7.75 and temperature 71.73 °C, respectively. The pH was the most significant factor, followed by reaction temperature and concentration of CrCl3 . Under the deduced optimal conditions (CrCl3 7.0 mg/mL, pH 7.7 and temperature 70.0 °C), the experimental chelation rate was 28.01% ± 0.18% for GFP-Cr(III) complex, which agreed closely with the predicted value (27.61%). Fourier transform infrared (FTIR) spectroscopy revealed that the primary sites of chromium (III)-binding in polysaccharides were OH and CN groups, leading to the structure of GFP-Cr(III) complex was loose than the original polysaccharide. Nevertheless, Cr(III) did not make a fundamental change in the structure of GFP when comparing the FTIR spectra of GFP and GFP-Cr(III) complex. Additionally, the effects of GFP-Cr(III) complex on hyperglycemia and hyperlipidemia in high-fat diet (HFD) and streptozotocin (STZ)-induced diabetic mice were also investigated. Results showed that the serum total cholesterol (TC), total triglyceride (TG), low density lipoprotein cholesterol (LDL-C), fasting blood glucose levels and glucose tolerance in diabetic mice fed a high-fat diet (HFD) supplemented with GFP-Cr(III) complex (900 mg/kg day) were significantly lower than the diabetic group (P < 0.01). These results suggest that GFP-Cr(III) complex could be used as potential functional food ingredients for the prevention or treatment of hyperglycemia and hyperlipidemia., (Copyright © 2019 Elsevier B.V. All rights reserved.)- Published
- 2019
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25. Repression of lncRNA NEAT1 enhances the antitumor activity of CD8 + T cells against hepatocellular carcinoma via regulating miR-155/Tim-3.
- Author
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Yan K, Fu Y, Zhu N, Wang Z, Hong JL, Li Y, Li WJ, Zhang HB, and Song JH
- Subjects
- Apoptosis genetics, Base Sequence, CD8-Positive T-Lymphocytes cytology, CD8-Positive T-Lymphocytes metabolism, Carcinoma, Hepatocellular genetics, Carcinoma, Hepatocellular pathology, Cell Proliferation genetics, Female, Humans, Immunotherapy, Liver Neoplasms genetics, Liver Neoplasms pathology, Male, Middle Aged, Up-Regulation genetics, CD8-Positive T-Lymphocytes immunology, Carcinoma, Hepatocellular immunology, Hepatitis A Virus Cellular Receptor 2 genetics, Liver Neoplasms immunology, MicroRNAs genetics, RNA, Long Noncoding genetics
- Abstract
Background: Immunotherapy is a promising method for the treatment of hepatocellular carcinoma (HCC), in which CD8
+ T cells play a key role. The influence of long noncoding RNA (lncRNA) nuclear-enriched autosomal transcript 1(NEAT1) on the antitumor activity of CD8+ T cells was clarified in this study., Methods: Peripheral blood mononuclear cells (PBMCs) were isolated from HCC patients, and the expressions of NEAT1 and Tim-3 were determined by qRT-PCR and western blot, respectively. CD8+ T cell apoptosis and cell percentage were analyzed via flow cytometry. The cytolysis activity of CD8+ T cells against HCC cells was examined. RNA immunoprecipitation (RIP) and RNA pull-down assay were performed to explore the interaction between NEAT1 and miR-155., Results: NEAT1 and Tim-3 were up-regulated in the PBMCs of patients with HCC (n = 20) compared with healthy subjects (n = 20). Down-regulation of NEAT1 restrained CD8+ T cell apoptosis and enhanced the cytolysis activity, while interference of miR-155 showed the opposite effects by up-regulating Tim-3. Binding and interaction between NEAT1 and miR-155 were validated in CD8+ T cells. Down-regulation of NEAT1 restrained CD8+ T cell apoptosis and enhanced the cytolysis activity through the miR-155/Tim-3 pathway. Repression of NEAT1 suppressed tumor growth in HCC mice., Conclusion: Via modulating the miR-155/Tim-3 pathway, repression of NEAT1 restrained CD8+ T cell apoptosis and enhanced the cytolysis activity against HCC, implying an effective target for improving the outcome of immunotherapy., (Copyright © 2019 Elsevier Ltd. All rights reserved.)- Published
- 2019
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26. A Preliminary Study of Neonatal Cranial Venous System by Color Doppler.
- Author
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Liu LY, Hong JL, and Wu CJ
- Subjects
- Blood Flow Velocity physiology, Cerebrovascular Circulation physiology, Cerebrum blood supply, Cranial Sinuses physiology, Female, Humans, Infant, Newborn, Male, Skull blood supply, Skull diagnostic imaging, Ultrasonography, Doppler, Color, Veins physiology, Cardiovascular System diagnostic imaging, Cerebrum diagnostic imaging, Cranial Sinuses diagnostic imaging, Ultrasonography, Doppler, Transcranial
- Abstract
Aim: To present anatomic data in the ultrasound planes for the identification of the major veins and the venous sinuses in cerebrum and to establish the sonographic normal reference values for the visualization of vein vessels and vein sinuses and blood flow velocities., Methods: This study involved 55 healthy full-term neonates for transfontanellar color Doppler sonography. The imaging included both sagittal and coronal planes with LA332E probe, supplemented with PA240 probe as necessary. As low as reasonably achievable (ALARA) principle was obeyed, limiting Doppler exposure time and maximizing signal intensity by increasing gain rather than outputting transducer power settings. The output power was kept at a minimum level consistent with recording an adequate signal. Keeping the newborns in calm state, the total examination time which every neonate required was less than 5 min. All images were stored also in a workstation for further analysis. The description statistics and t-test for statistical analysis were used., Result: In all studied cases (100% cases), subependymal veins (SV), internal cerebral veins (ICV), Galen vein (GV), straight sinus (SS), superior sagittal sinus (SSS), and transverse sinuses (TS) were visualized. The visualization percentages of inferior sagittal sinus (ISS) or basal veins/Rosenthal veins (BV/RV) were lower than 100%. Based on vessel visualization percentage from high to low, the vessels were ordered as follows: SV, ICV, BV, SS, TS, ISS, and SSS. In SSS and TS, the pulsation percentage was 100%. The descending percentages of vessel pulsation were noted in SS, BV, ICV, and SV. On the basis of the mean of maximum velocities of the vessels from low to high, the vessels were ordered as follows: ISS, BV-L, BV-R, ICV-R, ICV-L, SV-L, SV-R, SSS, TS-L, TS-R, and SS., Conclusion: The measurements percent of visualization of cerebral deep veins was higher than the percent of cerebral venous sinuses. The pulsation percent of measurement and the velocities of cerebral venous sinuses were absolutely higher than the cerebral deep venous system. The pairs of vascular blood flow velocities were nonsignificantly different from one another.
- Published
- 2019
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27. Comparison of Methods to Generalize Randomized Clinical Trial Results Without Individual-Level Data for the Target Population.
- Author
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Hong JL, Webster-Clark M, Jonsson Funk M, Stürmer T, Dempster SE, Cole SR, Herr I, and LoCasale R
- Subjects
- Aged, Data Interpretation, Statistical, Female, Humans, Male, Middle Aged, Cardiovascular Diseases prevention & control, Epidemiologic Research Design, Rosuvastatin Calcium administration & dosage
- Abstract
Our study explored the application of methods to generalize randomized controlled trial results to a target population without individual-level data. We compared 4 methods using aggregate data for the target population to generalize results from the international trial, Justification for the Use of Statins in Prevention: an Intervention Trial Evaluating Rosuvastatin (JUPITER), to a target population of trial-eligible patients in the UK Clinical Practice Research Datalink (CPRD). The gold-standard method used individual data from both the trial and CPRD to predict probabilities of being sampled in the trial and to reweight trial participants to reflect CPRD patient characteristics. Methods 1 and 2 used weighting methods based on simulated individual data or the method of moments, respectively. Method 3 weighted the trial's subgroup-specific treatment effects to match the distribution of an effect modifier in CPRD. Method 4 calculated the expected absolute benefits in CPRD assuming homogeneous relative treatment effect. Methods based on aggregate data for the target population generally yielded results between the trial and gold-standard estimates. Methods 1 and 2 yielded estimates closest to the gold-standard estimates when continuous effect modifiers were represented as categorical variables. Although individual data or data on joint distributions remains the best approach to generalize trial results, these methods using aggregate data might be useful tools for timely assessment of randomized trial generalizability.
- Published
- 2019
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28. Exploring core functional microbiota responsible for the production of volatile flavour during the traditional brewing of Wuyi Hong Qu glutinous rice wine.
- Author
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Huang ZR, Hong JL, Xu JX, Li L, Guo WL, Pan YY, Chen SJ, Bai WD, Rao PF, Ni L, Zhao LN, Liu B, and Lv XC
- Subjects
- Bacteria classification, Bacteria genetics, Bacteria isolation & purification, Biodiversity, China, Fermentation, Flavoring Agents chemistry, Fungi classification, Fungi genetics, Fungi isolation & purification, Oryza chemistry, Volatile Organic Compounds chemistry, Wine analysis, Bacteria metabolism, Flavoring Agents metabolism, Fungi metabolism, Microbiota, Oryza microbiology, Volatile Organic Compounds metabolism, Wine microbiology
- Abstract
The objective of this study was to explore the core functional microbiota for the production of volatile flavour during the traditional brewing of Wuyi Hong Qu glutinous rice wine, one of the most typical representatives of rice wine in China. Microbiological analysis based on high-throughput sequencing (HTS) technology demonstrated that bacteria of Lactobacillus, Bacillus, Leuconostoc, Lactococcus, Raoultella, Staphylococcus, Pediococcus, and Weissella, and fungi of Saccharomyces, Saccharomycopsis, Rhizopus, Monascus, Pichia, Wickerhamomyces, Candida, and Aspergillus were the predominant genera during the traditional fermentation process. Principal component analysis (PCA) based on the relative abundance showed that both of bacterial and fungal communities varied significantly in different fermentation phases. Some predominant microbial species or genera (including bacteria of Bacillus spp., Staphylococcus spp., Weissella spp., and P. acidilactici, and fungi of M. purpureus, R. oryzae, R. arrhizus var. arrhizus, and A. niger) were detected at the initial brewing stage, and their populations decreased as the fermentation progressed, while those of Lactobacillus, Gluconacetobacter, Leuconostoc, Pichia, Wickerhamomyces, and Saccharomyces increased to become the predominant genera at the final stage. A total of 79 volatile compounds were identified in traditional fermentation starters and during the traditional brewing process, mainly including esters, alcohols, acids, aldehydes, ketones, and phenols. Heatmaps and PCA also revealed the significant variances in the composition of volatile compounds among different samples. Furthermore, the potential correlations between microbiota succession and volatile flavour dynamics were explored through bidirectional orthogonal partial least squares (O2PLS) based correlation analysis. Three bacterial genera, namely, Gluconacetobacter, Lactobacillus, Lactococcus, and three fungal genera of Pichia, Wickerhamomyces, and Saccharomyces, were determined as the core functional microbiota for production of main volatile compounds in Wuyi Hong Qu glutinous rice wine. To conclude, information provided by this study is valuable to the development of effective strategies for the selection of beneficial bacterial and fungal strains to improve the quality of Wuyi Hong Qu glutinous rice wine., (Copyright © 2018 Elsevier Ltd. All rights reserved.)
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- 2018
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29. Highly Stretchable, Self-Healable Elastomers from Hydrogen-Bonded Interpolymer Complex (HIPC) and Their Use as Sensitive, Stable Electric Skin.
- Author
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Liu WC, Chung CH, and Hong JL
- Abstract
There is a growing interest in developing stretchable strain sensors to quantify the large mechanical deformation and strain associated with the activities for a wide range of species. Herein, we constructed elastomeric, healable hydrogen-bonded interpolymer complex (HIPC) rubberlike film by complexation of hydrogen-bond (H-bond)-donating poly(acrylic acid) (PAA) and H-bond-accepting poly(ethylene oxide) (PEO) (or poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (F108)). All HIPC elastomers prepared from varied PAA/PEO (or PAA/F108) ratios are healable elastomers with high extensibility (with the highest strain of 1400%). Recovery of all films can automatically occur or be accelerated by externally added water droplet. The stress- and strain healing efficiencies (η
σ and ηε ) of the water-assisting healed PAA/F108 blends are as high as 99%. Furthermore, stretchable and healable conductor films were fabricated from silver nanowire-printed (Ag-p) and the single-walled carbon nanotube-blended (SW-b) conductor films, respectively. The healable Ag-p conductor film is an ultrasensitive strain sensor, exhibiting large electric resistance variation when stretched. In contrast, the healable SW-b film is an ultrastable strain sensor with reversible resistance strain response over 200 stretching release cycles within a high strain range of 500%. Therefore, this study provides a new and flexible HIPC strategy for the fabrication of stretchable, ultrasensitive, and stable self-healing electrode materials., Competing Interests: The authors declare no competing financial interest.- Published
- 2018
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30. Incretin-Based Therapies and Diabetic Retinopathy: Real-World Evidence in Older U.S. Adults.
- Author
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Wang T, Hong JL, Gower EW, Pate V, Garg S, Buse JB, and Stürmer T
- Subjects
- Aged, Aged, 80 and over, Cohort Studies, Diabetic Retinopathy etiology, Dipeptidyl-Peptidase IV Inhibitors administration & dosage, Dipeptidyl-Peptidase IV Inhibitors adverse effects, Drug Therapy, Combination, Female, Humans, Hypoglycemic Agents adverse effects, Incretins adverse effects, Insulin, Long-Acting therapeutic use, Male, Risk Factors, Sulfonylurea Compounds therapeutic use, Thiazolidinediones therapeutic use, United States epidemiology, Diabetes Mellitus, Type 2 complications, Diabetes Mellitus, Type 2 drug therapy, Diabetes Mellitus, Type 2 epidemiology, Diabetic Retinopathy epidemiology, Hypoglycemic Agents administration & dosage, Incretins administration & dosage
- Abstract
Objective: Recent large trials yield conflicting results on the association between incretin-based therapies (IBTs) and diabetic retinopathy (DR). We examined whether IBTs increase DR risk compared with other antihyperglycemics., Research Design and Methods: We implemented an active comparator, new-user cohort design using a nationwide 20% random sample of fee-for-service U.S. Medicare beneficiaries aged 65 years or older with Parts A, B, and D coverage between 2007 and 2015. We identified the following cohorts without prior treatment for retinopathy: dipeptidyl peptidase 4 inhibitors (DPP4i) versus sulfonylureas (SU), DPP4i versus thiazolidinediones (TZD), glucagon-like peptide-1 receptor agonists (GLP1RA) versus long-acting insulin (LAI), and GLP1RA versus TZD. Primary outcome was advanced diabetic retinopathy requiring treatment (ADRRT), defined as a procedure code for retinopathy treatment. Incident diabetic retinopathy (IDR), identified by a diagnosis code, was a secondary outcome. We estimated propensity scores to balance confounders and adjusted hazard ratios (95% CI) using weighted Cox proportional hazards models., Results: We identified 213,652 eligible patients. During a median duration of 0.58 to 0.87 years across comparisons, with a rate from 6.0 to 12.8 per 1,000 person-years, IBTs were not associated with increased ADRRT or IDR risk. The adjusted hazard ratios (95% CI) for ADRRT were 0.91 (0.79-1.04) by comparing DPP4i to SU ( n = 39,292 and 87,073); 0.91 (0.75-1.11), DPP4i to TZD ( n = 51,410 and 22,231); 0.50 (0.39-0.65), GLP1RA to LAI ( n = 9,561 and 82,849); and 0.75 (0.53-1.06), GLP1RA to TZD ( n = 10,355 and 27,345)., Conclusions: Our population-based cohort study of older U.S. adults with diabetes suggests that IBTs used for approximately 1 year do not increase the DR risk., (© 2018 by the American Diabetes Association.)
- Published
- 2018
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31. The Risk of Acute Pancreatitis After Initiation of Dipeptidyl Peptidase 4 Inhibitors: Testing a Hypothesis of Subgroup Differences in Older U.S. Adults.
- Author
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Hong JL, Buse JB, Jonsson Funk M, Pate V, and Stürmer T
- Subjects
- Adult, Age Factors, Aged, Aged, 80 and over, Cardiovascular Diseases drug therapy, Cardiovascular Diseases epidemiology, Cohort Studies, Female, Hospitalization statistics & numerical data, Humans, Incidence, Male, Medicare statistics & numerical data, Middle Aged, Risk Factors, Sulfonylurea Compounds therapeutic use, Thiazolidinediones therapeutic use, United States epidemiology, Diabetes Mellitus, Type 2 drug therapy, Diabetes Mellitus, Type 2 epidemiology, Dipeptidyl-Peptidase IV Inhibitors therapeutic use, Hypoglycemic Agents classification, Hypoglycemic Agents therapeutic use, Pancreatitis chemically induced, Pancreatitis epidemiology
- Abstract
Objective: To examine whether dipeptidyl peptidase 4 inhibitors (DPP-4I) increase acute pancreatitis risk in older patients and whether the association varies by age, sex, and history of cardiovascular disease (CVD)., Research Design and Methods: We conducted a cohort study of DPP-4I initiators versus thiazolidinedione (TZD) or sulfonylurea initiators using U.S. Medicare beneficiaries, 2007-2014. Eligible initiators were aged 66 years or older without history of pancreatic disease or alcohol-related diseases. Patients were followed up for hospitalization due to acute pancreatitis and censored at 90 days after treatment changes. Weighted Cox models were used to estimate the hazard ratio (HR) for acute pancreatitis. Analyses were performed overall as well as within subgroups defined by age, sex, and CVD history., Results: We found no increased risk of acute pancreatitis comparing 49,374 DPP-4I initiators to 132,223 sulfonylurea initiators (weighted HR 1.01; 95% CI 0.83-1.24) and comparing 57,301 DPP-4I initiators to 32,612 TZD initiators (weighted HR 1.11; 95% CI 0.76-1.62). Age and sex did not modify the association. Among patients with CVD, acute pancreatitis incidence was elevated in initiators of DPP-4I and sulfonylurea (2.3 and 2.4 per 1,000 person-years, respectively) but not in TZD initiators (1.5). Among patients with CVD, higher risk of acute pancreatitis was observed with DPP-4I compared with TZD (weighted HR 1.84; 95% CI 1.02-3.35) but not compared with sulfonylurea., Conclusions: Our study provides evidence that DPP-4I is not associated with an increased risk of acute pancreatitis in older adults overall. The positive association observed in patients with CVD could be due to chance or bias but merits further investigation., (© 2018 by the American Diabetes Association.)
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- 2018
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32. Pyrene-Terminated, Amphiphilic Polypeptide and Its Hydrogen-Bonded Interpolymer Complex as Delivery Systems of Doxorubicin.
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Tsai CY, Chung CH, and Hong JL
- Abstract
The intensity ratio between the first (373 nm) and the third (383 nm) vibronic peaks [ I
1 / I3 , as the pyrene (Py) scale] of fluorescent Py was used to monitor the critical concentration, drug-loading, and -releasing behaviors of a Py-terminated, amphiphilic polypeptide PPM and its hydrogen-bonded interpolymer complex (HIPC) with poly(acrylic acid) (PAA). Primarily, an amphiphilic PPM with a hydrophobic Py terminal and hydrophilic methoxy-bis(ethylene oxide) pendant groups was synthesized through multiple preparative steps, and the resultant PPM was thoroughly mixed with PAA through a preferable hydrogen bond (H bond) interaction to form HIPC. The emission study suggested that the I1 / I3 ratio and the quantum yield (ΦF ) are effective in determining the critical concentrations of the aqueous PPM and PPM/PAA solutions. Moreover, the I1 / I3 ratio and ΦF were found to be convenient measures for determining the amounts of doxorubicin drugs loaded by and released from the aqueous PPM and PPM/PAA solutions., Competing Interests: The authors declare no competing financial interest.- Published
- 2018
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33. Generalizing Randomized Clinical Trial Results: Implementation and Challenges Related to Missing Data in the Target Population.
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Hong JL, Jonsson Funk M, LoCasale R, Dempster SE, Cole SR, Webster-Clark M, Edwards JK, and Stürmer T
- Subjects
- Aged, C-Reactive Protein analysis, Cholesterol, LDL blood, Female, Humans, Male, Middle Aged, Risk Factors, United Kingdom epidemiology, Cardiovascular Diseases prevention & control, Data Interpretation, Statistical, Epidemiologic Research Design, Rosuvastatin Calcium administration & dosage
- Abstract
Statins are indicated in patients with elevated levels of high-sensitivity C-reactive protein and normal low-density lipoprotein cholesterol based on results of the multicountry trial, Justification for the Use of Statins in Prevention: an Intervention Trial Evaluating Rosuvastatin (JUPITER) (2003-2008), but the benefit in real-world populations remains unknown. We sought to generalize JUPITER results to trial-eligible population using data from the UK Clinical Practice Research Datalink (CPRD), 2001-2014. We multiply imputed missing baseline characteristics for the CPRD population and selected the trial-eligible participants as the target population based on observed and imputed values. Trial participants were weighted to be representative of the CPRD population (n = 383,418) based on individual predicted probability of selection into the trial. Trial participants were also standardized to the CPRD population without missing values (n = 2,677). In JUPITER, rosuvastatin reduced cardiovascular risk with a 3-year risk difference of -2.0% (95% confidence interval (CI): -2.9, -1.1). The rosuvastatin effect was muted in the first 2 years but remained strong at 3 years after standardizing to the imputed CPRD population (3-year risk difference = -2.7%; 95% CI: -5.8, 0.4) and the CPRD population without missing data (3-year risk difference = -1.7%; 95% CI: -3.5, 0.1). The study serves as an illustration of possible approaches to understanding generalizability of trials using real-world databases given limitations due to missing data on inclusion/exclusion criteria.
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- 2018
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34. The regulation mechanisms of soluble starch and glycerol for production of azaphilone pigments in Monascus purpureus FAFU618 as revealed by comparative proteomic and transcriptional analyses.
- Author
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Huang ZR, Zhou WB, Yang XL, Tong AJ, Hong JL, Guo WL, Li TT, Jia RB, Pan YY, Lin J, Lv XC, and Liu B
- Subjects
- Benzofurans, Benzopyrans, Chromatography, High Pressure Liquid, Gene Expression Regulation, Fungal, Heterocyclic Compounds, 3-Ring, Monascus genetics, Pigments, Biological genetics, Real-Time Polymerase Chain Reaction, Reverse Transcriptase Polymerase Chain Reaction, Solubility, Tandem Mass Spectrometry, Transcription, Genetic, Food Microbiology methods, Gene Expression Profiling methods, Glycerol metabolism, Monascus metabolism, Pigments, Biological biosynthesis, Proteomics methods, Starch metabolism, Transcriptome
- Abstract
Monascus spp. have been used for thousands of years as a traditional food additive in China. This mold can produce many different types of commercially valuable secondary metabolites of biological activity. Soluble starch and glycerol are the two principal carbon sources universally utilized by Monascus for the production of beneficial metabolites. In this study, the effects and regulation mechanisms of soluble starch and glycerol for M. purpureus FAFU618 on Monascus azaphilone pigments (MonAzPs) were investigated through ultra-performance liquid chromatography quadrupole time of flight mass spectrometry (UPLC-QTOF-MS/MS), comparative proteomics and quantitative real-time reverse transcription polymerase chain reaction (RT-qPCR). The production of intracellular and extracellular pigments was significantly different between the soluble starch group (SSG) and glycerol group (GCG). Additionally, the components of intracellular pigments revealed by UPLC-QTOF-MS/MS showed that Monascin and Ankaflavin increased significantly in the GCG, while Rubropunctatin and Monascorubrin increased in the SSG. Differentially expressed proteins of mycelia between SSG and GCG were analyzed by two-dimensional gel electrophoresis (2-DE) and MALDI-TOF/TOF MS. We identified 27 proteins with statistically altered expression, of which 18 proteins associated with the EMP (glycolytic pathway), translation, energy generation, proteolysis, etc. were up-regulated, and 9 proteins, including ribosomal proteins, heat shock proteins (HSPs) and others, were down-regulated in GCG. Meanwhile, the expression levels of MonAzP biosynthetic genes were also analyzed by RT-qPCR, and the results showed that mppA, mppC, mppR1 and mppR2 were down-regulated, whereas genes MpPKS5, MpFasA2, MpFasB2, mppB, mppD and mppE were up-regulated. Collectively, these findings illustrate that the regulation of MonAzPs is not only closely related to the expression levels of certain proteins in the polyketide synthesis pathway but also closely related to the concentration of primary metabolism-generated molecules that are used as substrates for polyketide synthesis. The present study provides insights into the regulation of different carbon sources on the metabolism of MonAzPs in M. purpureus FAFU618. These results may promote further development of functional foods or medicines from Monascus spp. fermented products., (Copyright © 2018 Elsevier Ltd. All rights reserved.)
- Published
- 2018
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35. The Association Between the Use of Zolpidem and the Risk of Alzheimer's Disease Among Older People.
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Cheng HT, Lin FJ, Erickson SR, Hong JL, and Wu CH
- Subjects
- Aged, Aged, 80 and over, Dose-Response Relationship, Drug, Female, Humans, Hypnotics and Sedatives administration & dosage, Male, National Health Programs, Pyridines administration & dosage, Risk Factors, Sleep Wake Disorders drug therapy, Taiwan, Zolpidem, Alzheimer Disease chemically induced, Alzheimer Disease epidemiology, Hypnotics and Sedatives adverse effects, Pyridines adverse effects
- Abstract
Objectives: To evaluate the association between zolpidem use and the risk of Alzheimer's disease among older people., Design: A retrospective cohort study using data from 2001 to 2011 from the National Health Insurance Research Database., Setting: Taiwan., Participants: A total of 6,922 patients aged 65 years or older enrolled from January 2002 to December 2004 (the enrollment period)., Intervention (exposure): Zolpidem users were identified as patients who used zolpidem during the enrollment period. The index date was the date of the first zolpidem prescription. Dosage of zolpidem use was defined using cumulative defined daily dose (cDDD) based on the cumulative dosage that patients took within one year after the index date (grouped as: less than 28, 28-90, 91-180, and more than 180 cDDD)., Measurements: The occurrence of Alzheimer's disease was defined as the time period from the end of one year after the index date to the date of the Alzheimer's disease diagnosis. The propensity score was used to adjust the measured confounders of Alzheimer's disease. Cox proportional hazards models were used to evaluate the association between zolpidem use and the incidence of Alzheimer's disease., Results: Zolpidem users with a high cumulative dose (>180 cDDD) in the first year after initiation had a significantly greater risk of Alzheimer's disease than non-zolpidem users (HR = 2.97, 95% CI = 1.61-5.49) and low cumulative dose (<28 cDDD) users (HR = 4.18, 95% CI = 1.77-9.86)., Conclusion: We found the use of a high cumulative dose of zolpidem was associated with an increased risk of Alzheimer's disease among older people living in Taiwan. It is advised to use caution when considering long-term use of zolpidem in older patients., (© 2017, Copyright the Authors Journal compilation © 2017, The American Geriatrics Society.)
- Published
- 2017
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36. Light-Up of Rhodamine Hydrazide to Generate Emissive Initiator for Polymerization and to Afford Photochromic Polypeptide Metal Complex.
- Author
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Gao JY, Huang WC, Huang PY, Song CY, and Hong JL
- Abstract
Ring-opening polymerization (ROP) of cyclic peptide monomer of γ-propargyl-l-glutamate N-carboxyanhydride (PLG⁻NCA) was originally initiated by non-emissive, ring-close rhodamine 6G hydrazide (R-C). However, instantaneously after adding PLG⁻NCA to R-C, the spirolactam ring of R-C was opened by PLG⁻NCA, rendering emissive, ring-open R-O to initiate ROP of PLG⁻NCA. The emissive R-O moiety therefore produced fluorescent R⁻PLG with aggregation-induced emission (AIE) properties. Moreover, R⁻PLG was found to exhibit photochromic properties with good fatigue resistance and long lifetime when forming metal complexes with Sn(II) and Fe(III). In the dark, irradiated metal complexes slowly (~50 min) restored to the initial state. This research provides foundation for the development of new photochromic materials with long lifetime., Competing Interests: The authors declare no conflict of interest.
- Published
- 2017
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37. Differential Use of Screening Mammography in Older Women Initiating Metformin versus Sulfonylurea.
- Author
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Hong JL, Henderson LM, Jonsson Funk M, Lund JL, Buse JB, Pate V, and Stürmer T
- Subjects
- Aged, Aged, 80 and over, Breast Neoplasms epidemiology, Cohort Studies, Female, Humans, Hypoglycemic Agents administration & dosage, Mass Screening methods, Breast Neoplasms diagnosis, Early Detection of Cancer methods, Mammography methods, Metformin administration & dosage, Sulfonylurea Compounds administration & dosage
- Abstract
Purpose: Differential use of screening mammography may lead to biased detection of breast cancer. This study aimed to compare receipt of screening mammography and the incidence of screen-detected breast cancer between metformin and sulfonylurea initiators., Methods: We used 2006-2014 US Medicare claims to identify initiators of metformin or sulfonylurea aged 65+ years continuously enrolled in Parts A/B for ≥2 years pre-initiation and ≥2 years post-initiation. We reported frequencies of screening mammograms and screen-detected breast cancer in 1 year pre-initiation among all cohort members and in 1 year post-initiation among cancer-free cohort members. Weighted screening risk differences (RDs) were estimated comparing metformin to sulfonylurea group., Results: We identified 41,436 and 13,367 initiators of metformin and sulfonylurea, 35% and 24% of which had ≥1 screening mammogram in 1 year pre-initiation (weighted RD: 6 percentage points; 95% CI: 5 to 7), respectively. The weighted RD for screen-detected breast cancer associated with metformin was 0.00 percentage points (95% CI: -0.09 to 0.09). Among cancer-free cohort members, metformin initiators had 5 percentage points (95% CI: 4 to 6) and 0.11 percentage points (95% CI: -0.02 to 0.23) absolute risk excess of screening mammography and screen-detected breast cancer in 1 year post-initiation, compared with sulfonylurea initiators, respectively., Conclusions: Metformin initiators were more likely to receive screening mammograms than sulfonylurea initiators pre- and post-initiation, indicating possible detection bias due to differential screening mammography. Researchers should be aware of the potential for more screening mammograms pre- and post-initiation when interpreting the findings of metformin on breast cancer incidence. Copyright © 2017 John Wiley & Sons, Ltd., (Copyright © 2017 John Wiley & Sons, Ltd.)
- Published
- 2017
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38. Comparative Effect of Initiating Metformin Versus Sulfonylureas on Breast Cancer Risk in Older Women.
- Author
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Hong JL, Jonsson Funk M, Buse JB, Henderson LM, Lund JL, Pate V, and Stürmer T
- Subjects
- Aged, Cohort Studies, Cross-Sectional Studies, Female, Humans, Incidence, Propensity Score, Proportional Hazards Models, Protective Factors, Breast Neoplasms epidemiology, Diabetes Mellitus, Type 2 drug therapy, Hypoglycemic Agents therapeutic use, Metformin therapeutic use, Sulfonylurea Compounds therapeutic use
- Abstract
Background: Several observational studies have reported that metformin may be associated with reduced risk of breast cancer; however, many of these studies were affected by time-related biases such as immortal time bias and time-window bias. This study aimed to examine the relative risk of breast cancer for older women initiating metformin versus sulfonylureas while avoiding such biases., Methods: The study cohort consisted of women aged 65+ who initiated monotherapy with metformin (n = 45,900) or sulfonylureas (n = 13,904) and were free of cancer and renal disease within 6 months before treatment initiation using 2007-2012 US Medicare claims data. We followed treatment initiators for incident breast cancer, and estimated hazard ratios using weighted Cox models. Unmeasured confounding by body mass index and smoking was further adjusted by propensity score calibration using external information from Medicare Current Beneficiary Survey 2006-2009 panels., Results: During 58,835 and 16,366 person-years of follow-up, 385 initiators of metformin treatment and 95 of sulfonylurea were diagnosed with breast cancer. Metformin initiators did not have a reduced risk of breast cancer compared with sulfonylurea initiators (hazard ratio: 1.2; 95% confidence interval: 0.94, 1.6). Externally controlling for body mass index and smoking did not affect the estimates., Conclusion: The findings of this study provide no support for a reduced risk of breast cancer after initiation of metformin compared with a clinical alternative in older women. This study is limited by the relatively short follow-up time and we cannot exclude the possible benefits of long-time metformin use on breast cancer risk.
- Published
- 2017
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39. Ionic complex of a rhodamine dye with aggregation-induced emission properties.
- Author
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Huang PY, Gao JY, Song CY, and Hong JL
- Subjects
- Animals, Cattle, Fluorescent Dyes chemical synthesis, Ions chemical synthesis, Ions chemistry, Molecular Structure, Rhodamines chemical synthesis, Amines analysis, Fluorescent Dyes chemistry, Metals analysis, Rhodamines chemistry, Serum Albumin, Bovine analysis
- Abstract
An AIE-active rhodamine based luminogen was prepared via a complexation reaction between non-emissive rhodamine hydrazide (RdH) and bulky camphorsulfonic acid (CSA). Besides acting to open the spirolactam ring of RdH, CSA also imposes a rotational restriction on the resultant ionic complex, RdH(CSA)
x . Without CSA, the analogous complex RdH(HCl)3 is a luminogen with aggregation-caused quenching (ACQ) properties. The ionic bonds of RdH(CSA)3 are sensitive to several external stimuli and therefore it is a luminescent sensor for metal ions, organic amines and the blood protein bovine serum albumin (BSA). Besides being a sensor for BSA, the ionic RdH(CSA)3 is also a denaturant capable of uncoiling the peptide chain of BSA.- Published
- 2017
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40. New and efficient fluorescent and phosphorescent luminogens: general discussion.
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Leung N, Pucci A, Hu R, Campbell EE, Krishnamoorthy G, Tang BZ, Wu S, Zhang F, Mei J, Bai W, Li B, He X, Tang Y, Liu B, Zhang R, Wang Z, Qin A, Li Z, Zhang D, Pasini D, Tian W, Tsuchiya Y, Jadhav T, Wang Y, Zhao Z, He G, Li K, Rivard E, Zhu MQ, Xu B, Sun JZ, Chujo Y, Hong JL, Kong L, Lu P, Chang CC, Wang K, and Singh RA
- Published
- 2017
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41. Identification of impaired fasting glucose, healthcare utilization and progression to diabetes in the UK using the Clinical Practice Research Datalink (CPRD).
- Author
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Hong JL, McNeill AM, He J, Chen Y, and Brodovicz KG
- Subjects
- Adult, Aged, Aged, 80 and over, Cohort Studies, Databases, Factual, Diabetes Mellitus, Type 2 diagnosis, Disease Progression, Fasting, Female, Follow-Up Studies, Glucose Tolerance Test, Humans, Male, Middle Aged, Patient Acceptance of Health Care, Prediabetic State diagnosis, Retrospective Studies, Time Factors, United Kingdom epidemiology, Blood Glucose, Diabetes Mellitus, Type 2 epidemiology, Glucose Intolerance epidemiology, Prediabetic State epidemiology
- Abstract
Purpose: Few studies have examined patients with prediabetes in usual, "real-world" clinical practice settings. Among patients with impaired fasting glucose (IFG), we aimed to describe the rates of progression to diabetes and to examine the long-term reduction in diabetes risk associated with regression to normoglycemia at 1 year., Methods: The UK-based study included 120 055 non-diabetic patients in Clinical Practice Research Datalink from 2001 to 2012 aged 25+ years and with ≥1 fasting plasma glucose (FPG) test between ≥6.1 and <7.0 mmol/l indicating IFG who were followed for progression to diabetes. In a subgroup of 45 167 patients with IFG with subsequent FPG results 1 year later, we assessed the 1-year glycemic status change and estimated the relative hazard of diabetes comparing patients with regression to normoglycemia (IFG-normoglycemia) to those who remained in IFG (IFG-IFG) using a multivariable Cox model., Results: Among patients with IFG with over 414 649 person-years of follow-up, 52% received a subsequent FPG test, and 10% developed diabetes within 1 year after recognition of IFG. The incidence rate of diabetes was 5.86 (95% CI: 5.78 to 5.93) per 100 person-years. In the subgroup analysis, 31% of these patients remained in IFG, while 53% and 16% converted to normoglycemia or diabetes, respectively. The adjusted hazard ratio of developing diabetes was 0.33 (95% CI: 0.31 to 0.35) comparing IFG-normoglycemia to IFG-IFG., Conclusions: IFG is a high-risk state for diabetes. Regression to normoglycemia from IFG strongly reduces the long-term risk of developing diabetes. Our study also shows the feasibility of identifying patients with IFG in the Clinical Practice Research Datalink. Copyright © 2016 John Wiley & Sons, Ltd., (Copyright © 2016 John Wiley & Sons, Ltd.)
- Published
- 2016
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42. Secondary neoplasms arising from nevus sebaceus: A retrospective study of 450 cases in Taiwan.
- Author
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Hsu MC, Liau JY, Hong JL, Cheng Y, Liao YH, Chen JS, Sheen YS, and Hong JB
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Cell Transformation, Neoplastic, Child, Child, Preschool, Female, Humans, Male, Middle Aged, Retrospective Studies, Taiwan, Young Adult, Neoplasms, Second Primary pathology, Nevus, Sebaceous of Jadassohn pathology, Skin Neoplasms pathology
- Abstract
Nevus sebaceus is frequently associated with the development of secondary neoplasms. Incidences of malignant transformation vary among different reports and few data is available regarding Asian populations. We aimed to determine the characteristics of secondary tumors developing from nevus sebaceus in a Taiwanese population and to review the published work. Patients with clinically and histologically confirmed nevus sebaceus were identified from 1992 to 2012 in a medical center. Among the 450 cases of nevus sebaceus, 38 secondary neoplasms were noted, accounting for 8.5% of all cases. Benign tumors represented more than 80% of all tumors. Syringocystadenoma papilliferum (2.7%) was the most common benign tumor, followed by trichoblastoma (1.6%) and trichilemmoma (1.6%) whereas basal cell carcinoma (0.9%) was the most frequent malignant tumor on nevus sebaceus and its clinical features were not typical. All the malignant tumors on nevus sebaceus were noted only in adulthood and the mean age of those with basal cell carcinoma was significantly older than that of trichoblastoma (P = 0.028). Our study concludes that malignant transformation is rare in nevus sebaceus and occurs uniquely in adulthood. On the basis of the findings, prophylactic excision of nevus sebaceus can be elective during childhood but is strongly advocated at puberty due to the increased risk of malignant transformation with time., (© 2015 Japanese Dermatological Association.)
- Published
- 2016
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43. Construction of a Near-Infrared-Activatable Enzyme Platform To Remotely Trigger Intracellular Signal Transduction Using an Upconversion Nanoparticle.
- Author
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Gao HD, Thanasekaran P, Chiang CW, Hong JL, Liu YC, Chang YH, and Lee HM
- Subjects
- Animals, Cell Line, Cyclic AMP-Dependent Protein Kinases metabolism, Enzymes, Immobilized metabolism, Fibroblasts metabolism, Nanoparticles chemistry, Rats, Cyclic AMP-Dependent Protein Kinases radiation effects, Enzymes, Immobilized radiation effects, Infrared Rays, Nanoparticles metabolism, Signal Transduction
- Abstract
Photoactivatable (caged) bioeffectors provide a way to remotely trigger or disable biochemical pathways in living organisms at a desired time and location with a pulse of light (uncaging), but the phototoxicity of ultraviolet (UV) often limits its application. In this study, we have demonstrated the near-infrared (NIR) photoactivatable enzyme platform using protein kinase A (PKA), an important enzyme in cell biology. We successfully photoactivated PKA using NIR to phosphorylate its substrate, and this induced a downstream cellular response in living cells with high spatiotemporal resolution. In addition, this system allows NIR to selectively activate the caged enzyme immobilized on the nanoparticle surface without activating other caged proteins in the cytosol. This NIR-responsive enzyme-nanoparticle system provides an innovative approach to remote-control proteins and enzymes, which can be used by researchers who need to avoid direct UV irradiation or use UV as a secondary channel to turn on a bioeffector.
- Published
- 2015
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44. Metformin and the risk of endometrial cancer: a population-based cohort study.
- Author
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Ko EM, Stürmer T, Hong JL, Castillo WC, Bae-Jump V, and Funk MJ
- Subjects
- Adult, Cohort Studies, Female, Humans, Incidence, Middle Aged, Proportional Hazards Models, Retrospective Studies, Risk Factors, Sulfonylurea Compounds administration & dosage, United States epidemiology, Endometrial Neoplasms epidemiology, Hypoglycemic Agents administration & dosage, Metformin administration & dosage
- Abstract
Objective: While some observational studies have suggested a protective effect of metformin on incident cancer, concerns about potential bias remain. We compared the incidence of endometrial cancer in metformin versus sulfonylurea initiators. Research design and methods We conducted a retrospective cohort analysis using US healthcare claims (MarketScan®), 2000-2011. We identified new users of metformin versus sulfonylureas with no prior cancer diagnoses and followed them until a diagnosis of endometrial cancer, hysterectomy, treatment change, or disenrollment. We estimated hazard ratios (HR) and 95% confidence intervals (CI) using Cox proportional hazards, using an as-treated analytic approach. Stabilized inverse probability of treatment weights were used to adjust for potential confounding at baseline., Results: Of 541,128 eligible women, 456,838 (84%) initiated metformin and 84,290 (16%) initiated sulfonylurea. The treatment groups differed at baseline in terms of age and recent diagnosis codes for diabetes, polycystic ovarian syndrome, and endometrial hyperplasia. Over a median follow-up of 1.2 (IQR 0.4-2.3) years and a total of 2,030,914 person-years, 729 women developed endometrial cancer. Metformin initiation was associated with a lower risk of endometrial cancer in the unadjusted analysis (HR 0.81, 95% CI 0.67-0.97). However, after balancing baseline covariates across groups, metformin was not associated with a reduced risk of endometrial cancer (HR 1.09, 95% CI 0.88-1.35). This finding was consistent across multiple sensitivity analyses and subgroup analyses in diabetic patients and relevant age groups., Conclusions: In this population-based cohort of >500,000 women, initiating metformin compared with sulfonylureas was not associated with a reduced risk of developing endometrial cancer., (Copyright © 2014 Elsevier Inc. All rights reserved.)
- Published
- 2015
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45. Protein quantitation by complexation of fluorescent tetraphenylthiophene cation to anion-terminated poly(N-isopropylacrylamide): aggregation-enhanced emission and electrostatic interaction.
- Author
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Deng SL, Hsiao TS, Shih KY, and Hong JL
- Subjects
- Acrylic Resins metabolism, Animals, Anions chemistry, Cations chemistry, Cattle, Circular Dichroism, Protein Binding, Serum Albumin, Bovine chemistry, Serum Albumin, Bovine metabolism, Sodium Dodecyl Sulfate chemistry, Static Electricity, Thiophenes metabolism, Acrylic Resins chemistry, Fluorometry, Serum Albumin, Bovine analysis, Thiophenes chemistry
- Abstract
A fluorescent biological sensor utilizing aggregation-enhanced emission (AEE) property was developed in our laboratory. First, the AEE-active fluorescent tetraphenylthiophene (TP) unit was synthetically connected to poly(N-isopropylacrylamide) by covalent and ionic bonds, resulting in the respective c- and i-TP-PNIPAM for the detection and quantification of the bovine serum albumin (BSA) model protein. When bind to BSA, the ionic i-TP-PNIPAM shows much better fluorescence (FL) sensitivity compared to c-PNIPAM. The fluorescence (FL) intensity of i-TP-PNIAPM displays a good linear dependence on concentration of BSA (0-1 mg/mL), indicating quantitative fluorimetric protein detection can be achieved. Further addition of anionic surfactant of sodium dodecylsulfate (SDS) considerably raised the FL intensity of the complex solution. All the FL response was discussed in term of conformational freedom of the TP unit under different environmental constraints., (Copyright © 2014 Elsevier B.V. All rights reserved.)
- Published
- 2014
- Full Text
- View/download PDF
46. Leonurusoleanolides E-J, minor spirocyclic triterpenoids from Leonurus japonicus fruits.
- Author
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Ye M, Xiong J, Zhu JJ, Hong JL, Zhao Y, Fan H, Yang GX, Xia G, and Hu JF
- Subjects
- Antineoplastic Agents, Phytogenic chemistry, Antineoplastic Agents, Phytogenic pharmacology, Carcinoma, Hepatocellular, Cell Survival drug effects, Drug Screening Assays, Antitumor, Drugs, Chinese Herbal chemistry, Drugs, Chinese Herbal pharmacology, Fruit chemistry, Humans, Inhibitory Concentration 50, Liver Neoplasms, Molecular Structure, Nuclear Magnetic Resonance, Biomolecular, Spiro Compounds chemistry, Spiro Compounds pharmacology, Triterpenes chemistry, Triterpenes pharmacology, Antineoplastic Agents, Phytogenic isolation & purification, Drugs, Chinese Herbal isolation & purification, Leonurus chemistry, Spiro Compounds isolation & purification, Triterpenes isolation & purification
- Abstract
Six new (leonurusoleanolides E-J, 1-6) and five known (7-11) nortriterpenoids were isolated and characterized from the dried fruits of Leonurus japonicus. They all contain a distinctive 19(18→17)-abeo-28-noroleanane-type spirocylclic skeleton with a trans or a cis acyl substituent at C-3 or C-23. Similar to the previously known leonurusoleanolides A/B (7/8) and C/D (9/10), compounds 1/2 and 3/4 were also found to exist as equilibrium mixtures of trans and cis isomers. The isolated pure compounds and mixtures were evaluated for their cytotoxicity against a small panel of human cancer cell lines (BGC-823 and KE-97 gastric carcinoma, Huh-7 hepatocarcinoma, Jurkat T cell lymphoblasts, and MCF-7 breast adenocarcinoma) using the CellTiter-Glo luminescent cell viability assay method. Among them, (2α,3β,17R*,18β)-3-O-(trans-caffeoyl)-19(18→17)-abeo-28-norolean-12-ene-2,18,23-triol (leonurusoleanolide J, 6) showed the most potent cytotoxic activity, with IC50 values less than 10 μM.
- Published
- 2014
- Full Text
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47. [Changes of historical Paragonimus metacercaria infection rates of freshwater crabs in Yongjia County].
- Author
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Zhou TJ, Chen HQ, and Hong JL
- Subjects
- Animals, China epidemiology, Fresh Water, Brachyura parasitology, Disease Reservoirs parasitology, Paragonimus isolation & purification
- Abstract
Objective: To understand the changes of Paragonimus metacercaria infection rates of freshwater crabs in Paragonimus endemic areas and explore the causes in Yongjia County, Zhejiang Province, China., Methods: A field investigation was carried out. The freshwater crabs were collected and the metacercaria were separated from the crabs. The infection rates, infectiosities and infection indexes were calculated and the results were vertically compared with the historical findings. The causes of the changes were discussed., Results: Compared with those in 1980, the average infection rate in original endemic areas decreased from 59.71% to 21.50% (P < 0.05), while the infection density decreased from 1.09/g to 0.23/g (P < 0.05). The infection index decreased obviously. In Hesheng Village, it decreased from 4.05 to 0.01 (P < 0.01), in Wuchi Village, it was from 37.90 to 2.91 (P <0.01), and in Daruoyan Scinic area,it was from 5.85 to 0.03 (P < 0.01). Two endemic areas disappeared but two new endemic areas (Sihai Village and Sunshan Village) were found, and in Sunshan Village, the metacercaria infection rate was 100%, the infection density and infection index were 21.30/g and 3 402.68 respectively, which meant it was a super high endemic focus., Conclusion: The Paragonimus metacercaria infection rate in crabs is lower than before in Yongjia County, but some super high epidemic focus of paragonimiasis still exists. Therefore, we still should strengthen the control measures.
- Published
- 2013
48. Acid-sensing by airway afferent nerves.
- Author
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Lee LY, Gu Q, Xu F, and Hong JL
- Subjects
- Acidosis chemically induced, Aerosols, Animals, Cough physiopathology, Humans, Inflammation chemically induced, Inflammation physiopathology, Inhalation Exposure adverse effects, Nerve Fibers, Myelinated metabolism, Nerve Fibers, Unmyelinated metabolism, Neurons, Afferent drug effects, Respiratory System drug effects, Respiratory System physiopathology, Respiratory Tract Diseases chemically induced, Respiratory Tract Diseases physiopathology, TRPV Cation Channels metabolism, Acids adverse effects, Cough chemically induced, Neurons, Afferent metabolism
- Abstract
Inhalation of acid aerosol or aspiration of acid solution evokes a stimulatory effect on airway C-fiber and Aδ afferents, which in turn causes airway irritation and triggers an array of defense reflex responses (e.g., cough, reflex bronchoconstriction, etc.). Tissue acidosis can also occur locally in the respiratory tract as a result of ischemia or inflammation, such as in the airways of asthmatic patients during exacerbation. The action of proton on the airway sensory neurons is generated by activation of two different current species: a transient (rapidly activating and inactivating) current mediated through the acid-sensing ion channels, and a slowly activating and sustained current mediated through the transient receptor potential vanilloid type 1 (TRPV1) receptor. In view of the recent findings that the expression and/or sensitivity of TRPV1 are up-regulated in the airway sensory nerves during chronic inflammatory reaction, the proton-evoked irritant effects on these nerves may play an important part in the manifestation of various symptoms associated with airway inflammatory diseases., (Copyright © 2013 Elsevier Ltd. All rights reserved.)
- Published
- 2013
- Full Text
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49. Risk of colorectal cancer after initiation of orlistat: matched cohort study.
- Author
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Hong JL, Meier CR, Sandler RS, Jick SS, and Stürmer T
- Subjects
- Adult, Epidemiologic Methods, Female, Humans, Male, Middle Aged, Obesity drug therapy, Orlistat, Anti-Obesity Agents adverse effects, Colorectal Neoplasms chemically induced, Lactones adverse effects
- Abstract
Objective: To examine the risk of colorectal cancer after orlistat initiation in the UK population., Design: Retrospective matched cohort study., Setting: Data from the UK Clinical Practice Research Datalink from September 1998 to December 2008., Participants: 33,625 adults aged 18 years or over who started treatment with orlistat; each orlistat initiator was matched to up to five non-initiators (n=160,347) on age, sex, body mass index, and calendar time., Main Outcome Measures: Associations between orlistat initiation and the risk of colorectal cancer, assessed by calculating hazard ratios with propensity score adjusted Cox proportional hazard models., Results: Of 193,972 patients with a median age of 47 (interquartile range 37-57) years, 77% were women and approximately 90% were obese (body mass index ≥ 30). Orlistat initiators were more likely to have a previous history of diabetes or hypertension and to receive prescriptions for anti-diabetes drugs, statins, and aspirin compared with non-initiators. In the intention to treat analysis, 57 colorectal cancer events were identified among orlistat initiators and 246 among non-initiators, with median follow-up times of 2.96 and 2.86 years, respectively. The calculated incidence rate of colorectal cancer per 100,000 person years was 53 (95% confidence interval 41 to 69) for orlistat initiators and 50 (44 to 57) for non-initiators. Orlistat initiation was not associated with a higher risk of colorectal cancer (adjusted hazard ratio 1.11, 95% confidence interval 0.84 to 1.47). Findings were robust in the as treated analyses and in patients who were aged 50 years or over, were morbidly obese, or had a history of diabetes., Conclusions: This study found no evidence of an increased risk of colorectal cancer after the initiation of orlistat. It is limited by the relatively short follow-up time, and the possibility of adverse effects of long term orlistat use on risk of colorectal cancer cannot be excluded.
- Published
- 2013
- Full Text
- View/download PDF
50. Tetracyclic triterpenoids and terpenylated coumarins from the bark of Ailanthus altissima ("Tree of Heaven").
- Author
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Hong ZL, Xiong J, Wu SB, Zhu JJ, Hong JL, Zhao Y, Xia G, and Hu JF
- Subjects
- Molecular Structure, Ailanthus chemistry, Coumarins chemistry, Plant Bark chemistry, Triterpenes chemistry
- Abstract
Tetracyclic triterpenoids (named as altissimanins A-E, 1-5) and a terpenylated coumarin (denominated as altissimacoumarin G, 6), along with fifteen known compounds (7-21) were isolated from the bark of Ailanthus altissima. Structures of compounds 1-6 were established by spectroscopic methods and chemical transformations. Altissimanin A (1) is a tirucallane-type triterpenoid bearing an uncommon oxetane ring in the side-chain, while altissimanins D (4) and E (5) are two unprecedented dimers each consisting of one tirucallane-type and one dammarane-type triterpenoid moiety. All the isolates were evaluated for their cytotoxic effects against a small panel of human cancer cell lines., (Copyright © 2012 Elsevier Ltd. All rights reserved.)
- Published
- 2013
- Full Text
- View/download PDF
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