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Gan H, Wu LT, Sun BQ. [Molecular diagnostic strategies and management of dust mite allergy]. Zhonghua Yu Fang Yi Xue Za Zhi 2024; 58:148-154. [PMID: 38228563 DOI: 10.3760/cma.j.cn112150-20231129-00384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Dust mites are one of the most important allergens, widely distributed around the world, especially in household environments. Dermatophagoides pteronyssinus, Dermatophagoides farinae and Blomia tropicalis are the most common species of dust mites. There are more than 35 known sensitization components of dust mites, among which Der p 1, Der p 2 and Der p 23 are the major components. Clinically, allergen skin test and serum specific immunoglobulin E (sIgE) detection are widely used in the preliminary diagnosis of dust mite allergy. However, these methods cannot accurately identify specific dust mite sensitization components. Considering that there are significant differences in the allergenic components of dust mites in different regions and populations, component-resolved diagnosis of dust mite is particularly important in accurately determining the allergenic components. This is not only of guiding significance for allergen avoidance, but also important for determining the immunotherapy regimen for dust mites. In order to strengthen the understanding of the molecular diagnosis of dust mites and promote the integration of allergy science in China with the international standards, this article interprets the "Allergy Molecular Allergology User's Guide 2.0" published recently by the European Academy of Allergy and Clinical Immunology.
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Affiliation(s)
- H Gan
- Department of Clinical Laboratory of the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou 510120, China
| | - L T Wu
- Department of Clinical Laboratory of the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou 510120, China
| | - B Q Sun
- Department of Clinical Laboratory of the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou 510120, China
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Marwah R, Xing D, Soon YY, Squire T, Gan H, Ng SP. Reirradiation vs. Systemic Therapy vs. Combination Therapy for Recurrent High-Grade Glioma: A Meta-Analysis of Survival and Toxicity. Int J Radiat Oncol Biol Phys 2023; 117:e136-e137. [PMID: 37784703 DOI: 10.1016/j.ijrobp.2023.06.942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) To compare the effects of reirradiation, systemic therapy and combination therapy (reirradiation + systemic therapy) on overall survival (OS), progression-free survival (PFS) and adverse effects (AEs) in patients with recurrent high-grade glioma (rHGG). MATERIALS/METHODS A search was performed on PubMed, Scopus, Embase and CENTRAL on 18 March 2022, and repeated on 1 November 2022. Studies comparing OS, PFS and AEs in patients with rHGG, and encompassing the following four groups were included; reirradiation vs systemic therapy, combination therapy vs systemic therapy, combination therapy vs reirradiation, and reirradiation + bevacizumab-based systemic therapy vs reirradiation +/- non-bevacizumab-based systemic therapy. Risk of bias was assessed using the Cochrane RoB 2 tool for randomized control trials (RCTs) and the ROBINS-I tool for non-randomized studies. The logHR and SE (logHR) for OS and PFS, and logRR and SE (logRR) for AEs were extracted or estimated if not reported. Meta-analyses were performed for each comparator group using a random effects model. Subgroup analysis was performed on only RCTs if ≥ 2 studies were available. RESULTS Thirty-three studies comprising of 2201 participants were included. In the reirradiation vs systemic therapy group, there was no difference in PFS (2 studies, 185 participants; HR 0.87 (95% CI 0.61-1.22)) and OS (3 studies, 237 participants; HR 0.94 (95% CI 0.67-1.31)). In the combination therapy vs systemic therapy group, combination therapy improved PFS (6 studies, 605 participants; HR = 0.70 (95% CI 0.59-0.82)) and OS (6 studies, 537 participants; HR 0.73 (95% CI 0.56-0.96)), and there was no difference in grade 3+ AEs (4 studies, 398 participants; RR 1.03 (95% CI 0.57-1.86)). Subgroup analysis of only RCTs (2 studies, 205 participants) similarly showed no difference in grade 3+ AEs (RR 1.13 (95% CI 0.71-1.82)), though no significant improvements in PFS (HR 0.51 (95% CI 0.22-1.19)) or OS (HR 0.90 (95% CI 0.65-1.26)) were demonstrated. In the combination therapy vs reirradiation group, combination therapy improved PFS (5 studies, 259 participants; HR 0.50 (95% CI 0.37-0.69)) and OS (13 studies, 713 participants; HR 0.59 (95% CI 0.47-0.74)). In the reirradiation + bevacizumab-based systemic therapy vs reirradiation +/- non-bevacizumab-based systemic therapy group, combining reirradiation with bevacizumab improved PFS (2 studies, 104 participants; HR 0.46 (95% CI 0.27-0.77)) and OS (5 studies, 256 participants; HR 0.42 (95% CI 0.24-0.72)), and reduced radionecrosis (RN) (5 studies, 353 participants; RR 0.17 (95% CI 0.06-0.48)). CONCLUSION Combination therapy may improve OS and PFS with acceptable toxicity in select patients with rHGG. Further RCTs comparing systemic therapy to combination therapy, particularly with bevacizumab-based systemic therapy, are needed. The limitations of previous RCTs must be addressed; namely inadequate accrual of appropriate patients, and exclusion of FLAIR abnormalities from target delineation.
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Affiliation(s)
- R Marwah
- Townsville University Hospital, Department of Radiation Oncology, Townsville, QLD, Australia; James Cook University, College of Medicine and Dentistry, Townsville, QLD, Australia
| | - D Xing
- Townsville University Hospital, Department of Radiation Oncology, Townsville, QLD, Australia; James Cook University, College of Medicine and Dentistry, Townsville, QLD, Australia
| | - Y Y Soon
- National University Cancer Institute, Department of Radiation Oncology, Singapore, Singapore; NHMRC Clinical Trials Centre, University of Sydney, Sydney, NSW, Australia
| | - T Squire
- Townsville University Hospital, Department of Radiation Oncology, Townsville, QLD, Australia; James Cook University, College of Medicine and Dentistry, Townsville, QLD, Australia
| | - H Gan
- Olivia Newton-John Cancer Wellness & Research Centre, Austin Health, Department of Medical Oncology, Melbourne, VIC, Australia; Cancer Therapies and Biology Group, Centre of Research Excellence in Brain Tumours, Olivia Newton-John Cancer Wellness and Research Centre, Austin Hospital, Melbourne, VIC, Australia
| | - S P Ng
- Olivia Newton-John Cancer Wellness & Research Centre, Austin Health, Department of Radiation Oncology, Melbourne, VIC, Australia
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Zhang J, Shi W, Zou M, Zeng Q, Feng Y, Luo Z, Gan H. Prevalence and risk factors of erectile dysfunction in COVID-19 patients: a systematic review and meta-analysis. J Endocrinol Invest 2023; 46:795-804. [PMID: 36307637 PMCID: PMC9616422 DOI: 10.1007/s40618-022-01945-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 10/10/2022] [Indexed: 01/18/2023]
Abstract
PURPOSE Studies have found that erectile dysfunction (ED) may be a short-term or long-term complication in coronavirus disease 2019 (COVID-19) patients, but no relevant studies have completed a pooled analysis of this claim. The purpose of the review was to comprehensively search the relevant literature, summarize the prevalence of ED in COVID-19 patients, assess risk factors for its development, and explore the effect of the COVID-19 infection on erectile function. METHODS Medline, Embase, and the Cochrane Library was performed from database inception until April 14, 2022. Heterogeneity was analyzed by χ2 tests and I2 was used as a quantitative test of heterogeneity. Subgroup analyses, meta-regression, and sensitivity analyses were used to analyze sources of heterogeneity. RESULTS Our review included 8 studies, 4 of which functioned as a control group. There were 250,606 COVID-19 patients (mean age: 31-47.1 years, sample size: 23-246,990). The control group consisted of 10,844,200 individuals (mean age: 32.76-42.4 years, sample size 75-10,836,663). The prevalence of ED was 33% (95% CI 18-47%, I2 = 99.48%) in COVID-19 patients. The prevalence of ED based on the international coding of diseases (ICD-10) was 9% (95% CI 2-19%), which was significantly lower than the prevalence of ED diagnosed based on the International Index of Erectile Function (IIEF-5) (46%, 95% CI 22-71%, I2 = 96.72%). The pooling prevalence of ED was 50% (95% CI 34-67%, I2 = 81.54%) for articles published in 2021, significantly higher than that for articles published in 2022 (17%, 95% CI 7-30%, I2 = 99.55%). The relative risk of developing ED was 2.64 times in COVID-19 patients higher than in non-COVID-19 patients (RR: 2.64, 95% CI 1.01-6.88). The GRADE-pro score showed that the mean incidence of ED events in COVID-19 patients was 1,333/50,606 (2.6%) compared with 52,937/844,200 (0.4%) in controls; the absolute impact of COVID-19 on ED was 656/100,000 (ranging from 4/100,000 to 2352/100,000). Anxiety (OR: 1.13, 95% CI 1.03-1.26, I2 = 0.0%) in COVID-19 patients was a risk factor for ED. CONCLUSION COVID-19 patients have a high risk and prevalence of ED, mainly driven by anxiety. Attention should be paid to patient's erectile functioning when treating COVID-19.
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Affiliation(s)
- J Zhang
- Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - W Shi
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - M Zou
- Lab of Inflammatory Bowel Disease, The Center for Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Q Zeng
- Lab of Inflammatory Bowel Disease, The Center for Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Y Feng
- Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Z Luo
- Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - H Gan
- Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
- Lab of Inflammatory Bowel Disease, The Center for Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
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Li YF, Zhang JH, Gan H, Zhang KC, Cai K, Liu W, Luo SN, Jiang HL, Jin B, Zhao LB, Sun K. [Related factors of negative conversion time of nucleic acid in children with COVID-19]. Zhonghua Er Ke Za Zhi 2023; 61:256-260. [PMID: 36849354 DOI: 10.3760/cma.j.cn112140-20221023-00897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Objective: To explore the related factors of negative conversion time (NCT) of nucleic acid in children with COVID-19. Methods: A retrospective cohort study was conducted. A total of 225 children who were diagnosed with COVID-19 and admitted to Changxing Branch of Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine from April 3rd to May 31st 2022 were enrolled in the study. The infection age, gender, viral load, basic disease, clinical symptoms and information of accompanying caregivers were retrospectively analyzed. According to age, the children were divided into<3 years of age group and 3-<18 years of age group. According to the viral nucleic acid test results, the children were divided into positive accompanying caregiver group and negative accompanying caregiver group. Comparisons between groups were performed using Mann-Whitney U test or Chi-square test. Multivariate Logistic regression analysis was used to analyze the related factors of NCT of nucleic acid in children with COVID-19. Results: Among the 225 patients (120 boys and 105 girls) of age 2.8 (1.3, 6.2) years, 119 children <3 years and 106 children 3-<18 years of age, 19 cases were diagnosed with moderate COVID-19, and the other 206 cases were diagnosed with mild COVID-19. There were 141 patients in the positive accompanying caregiver group and 84 patients in the negative accompanying caregiver group.Patients 3-<18 years of age had a shorter NCT (5 (3, 7) vs.7 (4, 9) d, Z=-4.17, P<0.001) compared with patients <3 years of age. Patients in the negative accompanying caregiver group had a shorter NCT (5 (3, 7) vs.6 (4, 9) d,Z=-2.89,P=0.004) compared with patients in the positive accompanying caregiver group. Multivariate Logistic regression analysis showed that anorexia was associated with NCT of nucleic acid (OR=3.74,95%CI 1.69-8.31, P=0.001). Conclusion: Accompanying caregiver with positive nucleic acid test may prolong NCT of nucleic acid, and decreased appetite may be associated with prolonged NCT of nucleic acid in children with COVID-19.
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Affiliation(s)
- Y F Li
- Department of Pediatric Nephrology, Rheumatology and Immunology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - J H Zhang
- Department of Pediatric Pulmonology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - H Gan
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - K C Zhang
- Department of Pediatric Endocrinology and Genetic Metabolism, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - K Cai
- Department of Infectious Diseases, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - W Liu
- Department of Pediatric Heart Center, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - S N Luo
- Jinglang Senior Expert Clinic, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - H L Jiang
- Department of Cardiology, Changxing Branch of Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 201913, China
| | - B Jin
- Department of Radiology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - L B Zhao
- Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - K Sun
- Department of Pediatric Heart Center, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
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Yang X, Zhao Y, Gan H, Hawkins S, Eckelkamp L, Prado M, Burns R, Purswell J, Tabler T. Modeling gait score of broiler chicken via production and behavioral data. Animal 2023; 17:100692. [PMID: 36584623 DOI: 10.1016/j.animal.2022.100692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 11/24/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022] Open
Abstract
Lameness in broilers may be associated with pain and is considered a major broiler production and welfare concern. Manual gait score assessment in commercial broiler houses is discrete, time-consuming, and laborious. As such, automatic methods for broiler gait score assessment are urgently needed. The objective of this study was to identify the relation of broiler gait score with several productions and behavioral metrics (bird BW, age, activity, and distribution), and establish three gait score prediction models for automatic gait score estimations in broiler farms with automatic weighing systems, camera systems, or both. Sixteen pens were used to rear Cobb 500 and Ross 708 broilers for eight and nine weeks, respectively (eight pens/strain, 12 birds/pen). The gait scores of all birds were assessed weekly by trained assessors following a six-point (0-5) scoring protocol from the third week. The pen's average BW was measured weekly. Top-view cameras were installed to continuously record videos of broilers in all 16 pens. Images were extracted from video clips (10 min/hour) during a 16-hour light period to determine the activity index and distribution index through image processing. The gait score was positively correlated with BW (R2 = 0.97 for Cobb and R2 = 0.96 for Ross), while negatively correlated with activity (R2 = 0.78 for Cobb and R2 = 0.73 for Ross). The three models showed high accuracies in predicting broiler gait score based on variables of BW, age, activity index, and distribution index (R2 = 0.90-0.91, RMSE = 0.38-0.41). The findings of this study demonstrated the potential of estimating broiler gait score using bird BW, age, activity index, and distribution index. This information will assist in the development of automated gait score assessment systems in broiler production.
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Affiliation(s)
- X Yang
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Y Zhao
- Department of Animal Science, The University of Tennessee, Knoxville, TN 37996, USA.
| | - H Gan
- Department of Biosystems Engineering & Soil Science, The University of Tennessee, Knoxville, TN 37996, USA
| | - S Hawkins
- Department of Biosystems Engineering & Soil Science, The University of Tennessee, Knoxville, TN 37996, USA
| | - L Eckelkamp
- Department of Animal Science, The University of Tennessee, Knoxville, TN 37996, USA
| | - M Prado
- Department of Animal Science, The University of Tennessee, Knoxville, TN 37996, USA
| | - R Burns
- Department of Biosystems Engineering & Soil Science, The University of Tennessee, Knoxville, TN 37996, USA
| | - J Purswell
- USDA Agricultural Research Service, Poultry Research Unit, Mississippi State, MS 39762, USA
| | - T Tabler
- Department of Animal Science, The University of Tennessee, Knoxville, TN 37996, USA
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Gan H, White M, McGaffin G, Lannagan T, Campbell A, Graham J, Sansom O, Wilson R. P-36 Real-world outcomes in BRAFV600E metastatic colorectal cancer – the Glasgow experience. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Lee ST, Muralidharan V, Tebbutt N, Wong P, Fang C, Liu Z, Gan H, Sachinidis J, Pathmaraj K, Christophi C, Scott AM. Prevalence of hypoxia and correlation with glycolytic metabolism and angiogenic biomarkers in metastatic colorectal carcinoma. Eur J Nucl Med Mol Imaging 2020; 48:1585-1592. [PMID: 33125527 DOI: 10.1007/s00259-020-05074-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 10/12/2020] [Indexed: 12/12/2022]
Abstract
PURPOSE Hypoxia is associated with aggressive tumour behaviour and can influence response to systemic therapy and radiotherapy. The prevalence of hypoxia in metastatic colorectal cancer is poorly understood, and the relationship of hypoxia to patient outcomes has not been clearly established. The aims of the study were to evaluate hypoxia in metastatic colorectal cancer with [18F]Fluoromisonidazole ([18F]FMISO PET) and correlate these findings with glycolytic metabolism ([18F]FDG PET) and angiogenic blood biomarkers and patient outcomes. METHODS Patients with metastatic colorectal cancer received routine staging investigations and both [18F] FMISO PET and [18F] FDG PET scans. Correlative blood specimens were also obtained at the time of the [18F] FMISO PET scan. Patient follow-up was performed to establish progression-free survival. RESULTS A total of 40 patients were recruited into the trial. [18F]FMISO and [18F]FDG PET scans showed a significant correlation of SUVmax (p = 0.003). A significant correlation of progression-free survival and [18F] FMISO TNR (p = 0.02) and overall survival with [18F]FMISO TNR (p = 0.003) and [18F]FDG TGV (p = 0.02) was observed. Serum levels of osteopontin, but not VEGF, correlated with [18F] FMISO and [18F]FDG PET scan parameters. CONCLUSION [18F]FMISO PET uptake in metastatic colorectal cancer significantly correlates with glycolytic metabolism and is predictive of progression-free and overall survival. These findings have implications for the assessment and treatment of metastatic colorectal cancer patients with novel therapies which affect tumour angiogenesis and hypoxia.
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Affiliation(s)
- S T Lee
- Department of Molecular Imaging and Therapy, Austin Health, Melbourne, Australia. .,Tumour Targeting Laboratory, Olivia Newton-John Cancer Research Institute, Austin Health, Melbourne, Australia. .,School of Cancer Medicine, La Trobe University, Melbourne, Australia. .,Department of Medicine, The University of Melbourne, Austin Health, Melbourne, Australia.
| | - V Muralidharan
- Department of Surgery, Austin Health, Melbourne, Australia.,Department of Surgery, The University of Melbourne, Austin Health, Melbourne, Australia
| | - N Tebbutt
- Department of Surgery, The University of Melbourne, Austin Health, Melbourne, Australia.,Department of Medical Oncology, Austin Health, Melbourne, Australia
| | - P Wong
- Department of Surgery, Austin Health, Melbourne, Australia
| | - C Fang
- Tumour Targeting Laboratory, Olivia Newton-John Cancer Research Institute, Austin Health, Melbourne, Australia
| | - Z Liu
- Tumour Targeting Laboratory, Olivia Newton-John Cancer Research Institute, Austin Health, Melbourne, Australia
| | - H Gan
- Tumour Targeting Laboratory, Olivia Newton-John Cancer Research Institute, Austin Health, Melbourne, Australia.,School of Cancer Medicine, La Trobe University, Melbourne, Australia.,Department of Medical Oncology, Austin Health, Melbourne, Australia
| | - J Sachinidis
- Department of Molecular Imaging and Therapy, Austin Health, Melbourne, Australia
| | - K Pathmaraj
- Department of Molecular Imaging and Therapy, Austin Health, Melbourne, Australia
| | - C Christophi
- Department of Surgery, Austin Health, Melbourne, Australia.,Department of Surgery, The University of Melbourne, Austin Health, Melbourne, Australia
| | - A M Scott
- Department of Molecular Imaging and Therapy, Austin Health, Melbourne, Australia.,Tumour Targeting Laboratory, Olivia Newton-John Cancer Research Institute, Austin Health, Melbourne, Australia.,School of Cancer Medicine, La Trobe University, Melbourne, Australia.,Department of Medicine, The University of Melbourne, Austin Health, Melbourne, Australia
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Janku F, Abdul-Karim R, Azad A, Bendell J, Gan H, Sen S, Tan T, Wang J, Marina N, Baker L, Ma L, Mooney J, Luo D, Leveque J, Milla M, Meniawy T. Preliminary results from an open-label, multicenter phase 1/2 dose escalation and expansion study of THOR-707, a novel not-Alpha IL-2, as a single agent in adult subjects with advanced or metastatic solid tumors. Eur J Cancer 2020. [DOI: 10.1016/s0959-8049(20)31094-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Gan H, Zhang Y, Yuan M, Wu XY, Liu ZR, Liu M, Wu JB, Xu SJ, Gong L, Xu HL, Tao FB. [Epidemiological analysis on 1 052 cases of COVID-19 in epidemic clusters]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:1004-1008. [PMID: 32213270 DOI: 10.3760/cma.j.cn112338-20200301-00223] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the epidemiological characteristics of the cases of COVID-19 epidemic clusters, and explore the influence of family factors and social factors such as group activities on the spread of the disease. Methods: The data of cases of COVID-19 epidemic clusters from 19 January, 2020 to 25 February, 2020 were collected from the official platforms of 36 cities in 6 provinces in China. Descriptive statistical methods, χ(2) test and curve fitting were used to analyze the epidemiological characteristics of the clustered cases. Results: By 25 February, 2020, the data of 1 052 cases in 366 epidemic clusters were collected. In these clustered cases, 86.9%(914/1 050) occurred in families. Among the 1 046 cases with gender information, 513 were males (49.0%) and 533 were females (51.0%). The cases were mainly young adults between 18 and 59 years old, accounting for 68.5% (711/1 038). In the 366 epidemic clusters , the clusters in which the first confirmed cases with the history of sojourn in Wuhan or Hubei accounted for 47.0%(172/366). From 19 January to 3 February, 2020, the first confirmed cases with Wuhan or Hubei sojourn history accounted for 66.5%. From 4 to 25 February, the first confirmed cases who had Wuhan or Hubei sojourn history accounted for only 18.2%. The median of interval between the first generation case onset and the second generation case onset was 5 (2-8) days. The median of onset- diagnosis interval of the initial cases was 6 (3-9) days, and the median of onset-diagnosis interval of the secondary cases was 5 (3-8) days. Conclusions: Epidemic clusters of COVID-19 were common in many cities outside Wuhan and Hubei. Close contact in family was one of the main causes for the spread of household transmission of the virus. After 4 February, the epidemic clusters were mainly caused by the first generation or second generation cases in local areas, and the time for diagnosis became shorter.
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Affiliation(s)
- H Gan
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Key Laboratory of Population Health Across Life Cycle, Ministry of Education, Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, National Health Commission, Hefei 230032, China
| | - Y Zhang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Key Laboratory of Population Health Across Life Cycle, Ministry of Education, Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, National Health Commission, Hefei 230032, China
| | - M Yuan
- Center for Big Data Science in Health, School Health Service Management, Anhui Medical University, Hefei 230032, China
| | - X Y Wu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Key Laboratory of Population Health Across Life Cycle, Ministry of Education, Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, National Health Commission, Hefei 230032, China
| | - Z R Liu
- Department of Public Health Emergency Management and Acute Infectious Diseases Prevention, Anhui Provincial Center for Disease Control and Prevention, Hefei 230601, China
| | - M Liu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Key Laboratory of Population Health Across Life Cycle, Ministry of Education, Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, National Health Commission, Hefei 230032, China
| | - J B Wu
- Department of Public Health Emergency Management and Acute Infectious Diseases Prevention, Anhui Provincial Center for Disease Control and Prevention, Hefei 230601, China
| | - S J Xu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Key Laboratory of Population Health Across Life Cycle, Ministry of Education, Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, National Health Commission, Hefei 230032, China
| | - L Gong
- Department of Public Health Emergency Management and Acute Infectious Diseases Prevention, Anhui Provincial Center for Disease Control and Prevention, Hefei 230601, China
| | - H L Xu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Key Laboratory of Population Health Across Life Cycle, Ministry of Education, Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, National Health Commission, Hefei 230032, China
| | - F B Tao
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Key Laboratory of Population Health Across Life Cycle, Ministry of Education, Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, National Health Commission, Hefei 230032, China
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Liu M, Xu HL, Yuan M, Liu ZR, Wu XY, Zhang Y, Ma LY, Gong L, Gan H, Liu WW, Tao SM, Zong Q, Du YN, Tao FB. [Analysis on epidemic situation and spatiotemporal changes of COVID-19 in Anhui]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:630-633. [PMID: 32107910 DOI: 10.3760/cma.j.cn112150-20200221-00150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We used the epidemic data of COVID-19 published on the official website of the municipal health commissions in Anhui province to map the spatiotemporal changes of confirmed cases, fit the epidemic situation by the population growth curve at different stages and analyze the epidemic situation in Anhui Province. It was found that the cumulative incidence of COVID-19 was 156/100 000 by February 18, 2020 and the trend of COVID-19 epidemic declined after February 7 with a change from J-shaped curve to S-shaped curve. As the reporting time of cases might be 3-5 days later than the actual onset time, the number of new cases in Anhui province actually began to decline around February 2 to February 4, 2020.
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Affiliation(s)
- M Liu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Population Health Across Life Cycle,Ministry of Education of the People's Republic of China/National Health Commission Key Laboratory of Study on Abnormal Gametes and Reproductive Tract,Hefei 230032, China
| | - H L Xu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Population Health Across Life Cycle,Ministry of Education of the People's Republic of China/National Health Commission Key Laboratory of Study on Abnormal Gametes and Reproductive Tract,Hefei 230032, China
| | - M Yuan
- Center for Big Data Science in Health, School of Health Service Management, Anhui Medical University, Hefei 230032, China
| | - Z R Liu
- Anhui Provincial Center for Disease Control and Prevention, Hefei 230601, China
| | - X Y Wu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Population Health Across Life Cycle,Ministry of Education of the People's Republic of China/National Health Commission Key Laboratory of Study on Abnormal Gametes and Reproductive Tract,Hefei 230032, China
| | - Y Zhang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Population Health Across Life Cycle,Ministry of Education of the People's Republic of China/National Health Commission Key Laboratory of Study on Abnormal Gametes and Reproductive Tract,Hefei 230032, China
| | - L Y Ma
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Population Health Across Life Cycle,Ministry of Education of the People's Republic of China/National Health Commission Key Laboratory of Study on Abnormal Gametes and Reproductive Tract,Hefei 230032, China
| | - L Gong
- Department of Health Emergecy Management and Acute Infectious Disease Prevention, Anhui Provincial Center for Disease Control and Prevention, Hefei 230601, China
| | - H Gan
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Population Health Across Life Cycle,Ministry of Education of the People's Republic of China/National Health Commission Key Laboratory of Study on Abnormal Gametes and Reproductive Tract,Hefei 230032, China
| | - W W Liu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Population Health Across Life Cycle,Ministry of Education of the People's Republic of China/National Health Commission Key Laboratory of Study on Abnormal Gametes and Reproductive Tract,Hefei 230032, China
| | - S M Tao
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Population Health Across Life Cycle,Ministry of Education of the People's Republic of China/National Health Commission Key Laboratory of Study on Abnormal Gametes and Reproductive Tract,Hefei 230032, China
| | - Q Zong
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Population Health Across Life Cycle,Ministry of Education of the People's Republic of China/National Health Commission Key Laboratory of Study on Abnormal Gametes and Reproductive Tract,Hefei 230032, China
| | - Y N Du
- Center for Big Data Science in Health, School of Health Service Management, Anhui Medical University, Hefei 230032, China
| | - F B Tao
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Population Health Across Life Cycle,Ministry of Education of the People's Republic of China/National Health Commission Key Laboratory of Study on Abnormal Gametes and Reproductive Tract,Hefei 230032, China
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Clark J, Lokan J, Fellowes A, Xu H, Smith K, Gan H, Cher L, Desai J, Leong T, Fox S. 51. Adult brainstem anaplastic astrocytoma with an unusual molecular profile. Pathology 2020. [DOI: 10.1016/j.pathol.2020.01.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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12
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Gan H, Xue W, Gao Y, Zhu G, Chan D, Cheah KSE, Huang J. KIF5B modulates central spindle organization in late-stage cytokinesis in chondrocytes. Cell Biosci 2019; 9:85. [PMID: 31636894 PMCID: PMC6794761 DOI: 10.1186/s13578-019-0344-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 09/23/2019] [Indexed: 01/23/2023] Open
Abstract
Background The growth plate is a special region of the cartilage that drives longitudinal growth of long bones. Proliferating chondrocytes in the growth plate, arranged in columns, divide perpendicular to the long axis of the growth plate then intercalate to re-align with parental columns. Which molecular partners maintain growth plate columnar structures and chondrocyte cytokinesis has not been fully revealed. It is reported that kinesin family member 3A (KIF3A), a subunit of kinesin-2, plays an important role in maintaining columnar organization in growth plates via controlling primary cilia formation and cell proliferation. Result Here we identify kinesin family member 5B (KIF5B), the heavy chain of kinesin-1, a ubiquitously expressed motor protein for anterograde intracellular transport along the microtubule network, as a key modulator of cytokinesis in chondrocytes via maintenance of central spindle organization. We show that KIF5B is concentrated in the central spindle during cytokinesis in both primary chondrocytes and chondrogenic ATDC5 cells. Conclusion The failure of cytokinesis in KIF5B null chondrocytes leads to incomplete cell rotation, disrupting proliferation and differentiation, and results in a disorganized growth plate.
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Affiliation(s)
- Huiyan Gan
- 1School of Biomedical Sciences, The University of Hong Kong, Hong Kong, People's Republic of China
| | - Wenqian Xue
- 1School of Biomedical Sciences, The University of Hong Kong, Hong Kong, People's Republic of China
| | - Ya Gao
- 1School of Biomedical Sciences, The University of Hong Kong, Hong Kong, People's Republic of China.,2Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Guixia Zhu
- 1School of Biomedical Sciences, The University of Hong Kong, Hong Kong, People's Republic of China
| | - Danny Chan
- 1School of Biomedical Sciences, The University of Hong Kong, Hong Kong, People's Republic of China
| | - Kathryn S E Cheah
- 1School of Biomedical Sciences, The University of Hong Kong, Hong Kong, People's Republic of China
| | - Jiandong Huang
- 1School of Biomedical Sciences, The University of Hong Kong, Hong Kong, People's Republic of China.,3Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055 People's Republic of China
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Chia P, Cao D, Gan H, Reilly E, Phillips A, John T, Scott A. P2.06-10 ABT-806 Derived Antibody Drug Conjugates (ADCs) Inhibit Growth of Malignant Mesothelioma In-Vivo. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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14
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Voskoboynik M, Mileshkin L, Gan H, Millward M, Au-Yeung G, Meniawy T, Kichenadasse G, Zhang K, Zhang M, Mu S, Lickliter J. Safety, antitumor activity, and pharmacokinetics (PK) of pamiparib (BGB-290), a PARP1/2 inhibitor, in patients (pts) with advanced solid tumours: Updated phase I dose-escalation/expansion results. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz244.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Sandhu S, Hill A, Gan H, Friedlander M, Voskoboynik M, Barlow P, Townsend A, Song J, Zhang Y, Liang L, Desai J. Tislelizumab, an anti-PD-1 antibody, in patients with urothelial carcinoma (UC): Results from an ongoing phase I/II study. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy487.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Krajewska J, Robinson B, Keam B, Capdevila J, Klochikhin A, Gan H, Kapiteijn E, Elisei R, Partyka J, Borgman A, Schlumberger M. A noninferiority trial of cabozantinib (C) comparing 60 mg vs 140 mg orally per day to evaluate the efficacy and safety in patients (pts) with progressive, metastatic medullary thyroid cancer (MTC). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy302.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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17
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Hansen A, Bauer T, Moreno V, Maio M, Groenland S, Martin-Liberal J, Gan H, Rischin D, Millward M, Olszanski A, Cho D, Paul E, Ballas M, Ellis C, Zhou H, Yadavilli S, Sadik Shaik J, Schmidt E, Hoos A, Angevin E. First in human study with GSK3359609 [GSK609], inducible T cell co-stimulator (ICOS) receptor agonist in patients [Pts] with advanced, solid tumors: Preliminary results from INDUCE-1. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy288.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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18
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Ahluwalia M, Narita Y, Muragaki Y, Gan H, Merrell R, van den Bent M, Roberts-Rapp L, Guseva M, Ansell P, Lassman A. OS1.2 Stability of EGFR amplification in glioblastoma is differentially impacted based on therapeutic pressure. Neuro Oncol 2018. [DOI: 10.1093/neuonc/noy139.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- M Ahluwalia
- Burkhardt Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, OH, United States
| | - Y Narita
- National Cancer Center Hospital, Tokyo, Japan
| | - Y Muragaki
- Tokyo Women’s Medical University Hospital, Tokyo, Japan
| | - H Gan
- Austin Health and Olivia Newton-John Cancer Research Institute, ClevelandMelbourne, Australia
| | - R Merrell
- NorthShore University HealthSystem, Evanston, IL, United States
| | | | | | - M Guseva
- AbbVie Inc., North Chicago, IL, United States
| | - P Ansell
- AbbVie Inc., North Chicago, IL, United States
| | - A Lassman
- Columbia University Medical Center, New York, NY, United States
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Chen Y, Liu G, Zhang T, Yang K, Yu H, Tie Y, Liang J, Zhou J, Gan H. Diagnostic yield and safety of double balloon-assisted enteroscopy in the elderly: A systematic review and meta-analysis. Eur Geriatr Med 2017. [DOI: 10.1016/j.eurger.2017.06.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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Meniawy T, Richardson G, Townsend A, Desai J, Gan H, Friedlander M, Horvath L, Jameson M, Sandhu S, Wu Z, Qin Z, Kang K, Markman B. Preliminary results from a subset of patients (pts) with advanced ovarian cancer (OC) in a dose-escalation/expansion study of BGB-A317, an anti-PD-1 monoclonal antibody (mAb). Ann Oncol 2017. [DOI: 10.1093/annonc/mdx367.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Lickliter J, Gan H, Gao B, Grimison P, Zou J, Kallender H, Sun K, Chen X, Behren A, Fernandez-Penas P, Nagrial A, Voskoboynik M, Woods K, Millward M, Meniawy T. A first-in-human study of a novel monoclonal antibody INCSHR01210 directed against programmed cell death protein 1 (PD-1) in patients with advanced or metastatic cancer. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx376.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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22
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Desai J, Millward M, Chao Y, Gan H, Voskoboynik M, Markman B, Townsend A, Atkinson V, Zhu A, Song J, Qi Q, Kang A, Deva S. Preliminary results from subsets of patients (pts) with advanced gastric cancer (GC) and esophageal carcinoma (EC) in a dose-escalation/expansion study of BGB-A317, an anti-PD-1 monoclonal antibody (mAb). Ann Oncol 2017. [DOI: 10.1093/annonc/mdx367.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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He F, Huang X, Gan H, Dong B. ASSOCIATION OF THYROID HORMONES WITH CHRONIC CONSTIPATION IN HOSPITALIZED ELDERLY PATIENTS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.3502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Affiliation(s)
- F. He
- The Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - X. Huang
- The Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - H. Gan
- The Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - B. Dong
- The Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, Chengdu, China
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Lassman A, Gan H, Robert-Rapp L, Ansell P, Merrell R, Kumthekar P, Gomez E, Holen K, Reardon D, van den Bent M. P09.25 Identifying the correct patient (pt) population for ABT414: biomarker assays for epidermal growth factor receptor (EGFR) in pts with glioblastoma (GBM). Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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25
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van den Bent M, Gan H, Lassman A, Kumthekar P, Butowski N, Nabors L, Simes J, Maag D, Reardon D. OS07.4 Efficacy of a novel antibody-drug conjugate (ADC), ABT-414, as monotherapy in epidermal growth factor receptor (EGFR) amplified (EGFRamp), recurrent glioblastoma (rGBM). Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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26
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He S, Xue W, Duan Z, Sun Q, Li X, Gan H, Huang J, Qu JY. Multimodal nonlinear optical microscopy reveals critical role of kinesin-1 in cartilage development. Biomed Opt Express 2017; 8:1771-1782. [PMID: 28663865 PMCID: PMC5480580 DOI: 10.1364/boe.8.001771] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 02/17/2017] [Accepted: 02/17/2017] [Indexed: 06/07/2023]
Abstract
We developed a multimodal nonlinear optical (NLO) microscope system by integrating stimulated Raman scattering (SRS), second harmonic generation (SHG) and two-photon excited fluorescence (TPEF) imaging. The system was used to study the morphological and biochemical characteristics of tibial cartilage in a kinesin-1 (Kif5b) knockout mouse model. The detailed structure of fibrillar collagen in the extracellular matrix of cartilage was visualized by the forward and backward SHG signals, while high resolution imaging of chondrocytes was achieved by capturing endogenous TPEF and SRS signals of the cells. The results demonstrate that collagen fibrils in the superficial surface of the articular cartilage decreased significantly in the absence of Kif5b. The distorted morphology along with accumulated intracellular collagen was observed in the Kif5b-deficient chondrocytes, indicating the critical roles of kinesin-1 in the chondrocyte morphogenesis and collagen secretion. The study shows that multimodal NLO imaging method is an effective approach to investigate early development of cartilage.
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Affiliation(s)
- Sicong He
- Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
- Center of Systems Biology and Human Health, School of Science and Institute for Advanced Study, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
- These authors contributed equally to this work
| | - Wenqian Xue
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong, China
- These authors contributed equally to this work
| | - Zhigang Duan
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong, China
| | - Qiqi Sun
- Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
- Center of Systems Biology and Human Health, School of Science and Institute for Advanced Study, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Xuesong Li
- Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
- Center of Systems Biology and Human Health, School of Science and Institute for Advanced Study, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Huiyan Gan
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong, China
| | - Jiandong Huang
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong, China
- HKU-Shenzhen Institute of Research and Innovation, Shenzhen, Guangdong, China
- Shenzhen Institute of Advanced Technologies, Shenzhen, Guangdong, China
| | - Jianan Y Qu
- Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
- Center of Systems Biology and Human Health, School of Science and Institute for Advanced Study, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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Gopman DB, Dennis CL, McMichael RD, Hao X, Wang Z, Wang X, Gan H, Zhou Y, Zhang J, Huai Y. Enhanced ferromagnetic resonance linewidth of the free layer in perpendicular magnetic tunnel junctions. AIP Adv 2017; 7:055932. [PMID: 28690916 PMCID: PMC5497521 DOI: 10.1063/1.4977969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 11/28/2016] [Indexed: 06/07/2023]
Abstract
We report the frequency dependence of the ferromagnetic resonance linewidth of the free layer in magnetic tunnel junctions with all perpendicular-to-the-plane magnetized layers. While the magnetic-field-swept linewidth nominally shows a linear growth with frequency in agreement with Gilbert damping, an additional frequency-dependent linewidth broadening occurs that shows a strong asymmetry between the absorption spectra for increasing- and decreasing external magnetic field. Inhomogeneous magnetic fields produced during reversal of the reference and pinned layer complex is demonstrated to be at the origin of the symmetry breaking and the linewidth enhancement. Consequentially, this linewidth enhancement provides indirect information on the magnetic coercivity of the reference and pinned layers. These results have important implications for the characterization of perpendicular magnetized magnetic random access memory bit cells.
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Affiliation(s)
- D. B. Gopman
- Materials Science and Engineering Division, NIST, Gaithersburg, MD 20899, USA
| | - C. L. Dennis
- Materials Science and Engineering Division, NIST, Gaithersburg, MD 20899, USA
| | - R. D. McMichael
- Center for Nanoscale Science and Technology, NIST, Gaithersburg, MD 20899, USA
| | - X. Hao
- Avalanche Technology, Fremont, CA 95438, USA
| | - Z. Wang
- Avalanche Technology, Fremont, CA 95438, USA
| | - X. Wang
- Avalanche Technology, Fremont, CA 95438, USA
| | - H. Gan
- Avalanche Technology, Fremont, CA 95438, USA
| | - Y. Zhou
- Avalanche Technology, Fremont, CA 95438, USA
| | - J. Zhang
- Avalanche Technology, Fremont, CA 95438, USA
| | - Y. Huai
- Avalanche Technology, Fremont, CA 95438, USA
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Qi W, Li H, Zhang H, Liu S, Wang Y, Gai D, Lu Q, Gan H, Shi Y. Rehabilitation effect of exercise with soft tissue manipulation in patients with lumbar muscle strain. Niger J Clin Pract 2017; 20:629-633. [DOI: 10.4103/njcp.njcp_126_16] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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van den Bent M, Gan H, Reardon DA, Papadopoulos KP, Merrell R, Kumthekar P, Roberts-Rapp L, Holen K, Ansell P, Lassman AB. P06.02 Transcriptional profiling to identify determinants associated with response to ABT-414 in patients with glioblastoma. Neuro Oncol 2016. [DOI: 10.1093/neuonc/now188.093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Ameratunga M, McArthur G, Gan H, Cher L. Prolonged disease control with MEK inhibitor in neurofibromatosis type I-associated glioblastoma. J Clin Pharm Ther 2016; 41:357-359. [DOI: 10.1111/jcpt.12378] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 02/12/2016] [Indexed: 01/16/2023]
Affiliation(s)
- M. Ameratunga
- Department of Medical Oncology; Austin Health; Heidelberg Vic Australia
| | - G. McArthur
- Peter MacCallum Cancer Centre; East Melbourne Vic Australia
- University of Melbourne; Parkville Vic Australia
- St. Vincent's Hospital; University of Melbourne; Fitzroy Vic Australia
| | - H. Gan
- Department of Medical Oncology; Austin Health; Heidelberg Vic Australia
| | - L. Cher
- Department of Medical Oncology; Austin Health; Heidelberg Vic Australia
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de Guzman J, Gan H. Dural arteriovenous malformation at the right paramedian area of skull base in a 52year old male: a case report. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.1328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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32
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Van den Bent M, Roberts-Rapp L, Ansell P, Kular R, Song M, Sokolova I, Gan H, Papadopoulos K, Lassman A, Merrell R, Kumthekar P, Scott A, Gomez E, Fischer J, Bhathena A, Holen K, Lai R, Reardon D. 2903 Identifying the correct patient (pt) population for ABT-414: Biomarker assays for epidermal growth factor receptor (EGFR) in pts with glioblastoma (GBM). Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31620-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Anderson N, Jackson J, Khoo V, Schneider M, Rolfo M, Gan H, Kaegi K, Sneyd F, Lim Joon D, Wada M. Gross Tumor Volume Size and Oral Cavity Dose Drive Dysphagia in Definitive (Chemo) IMRT for Head and Neck Cancer. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Gan H, Zheng D, Lei Y, Li S, Zhang Q, Zhou S, Li J, Lin C. Monte Carlo Dose Evaluation for Pancreatic Stereotactic Body Radiation Therapy. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Zheng D, Gan H, Zhen W, Lin C, Driewer J, Wahl A, Zhou S. Is PTV Still Appropriate for Prescription Specification in Monte Carlo SBRT Lung Planning? Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Zheng S, Wang F, Gan H, Lu J, Jabbour S, Yue N, Zou W. Patient Treatment and Prognosis Information Extraction With Adaptive Self Learning Medical Form Generating System. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Li J, Denniston K, Hussain S, Gan H, Lin C. Comparison of CT and MRI-Based Gross Tumor Volume and Organ at Risk Delineation for Pancreatic Cancer Patients Undergoing Neoadjuvant Stereotactic Body Radiation Therapy. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1158] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zhang M, Zhang Q, Gan H, Li S, Zhou S. SU-E-T-360: Stereotactic Radiosurgery Plan Evaluation Using High Order Central Moments. Med Phys 2014. [DOI: 10.1118/1.4888693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Caretti V, Noll A, Woo P, Monje M, Cockle J, Bruning-Richardson A, Picton S, Levesley J, Ilett E, Short S, Melcher A, Lawler S, Garzia L, Dubuc A, Pitcher G, Northcott P, Mariampillai A, Mack S, Zayne K, Chan T, Skowron P, Wu X, Lionel A, Morrisy S, Hawkins C, Kongkham P, Rutka J, Huang A, Kenney A, Yang V, Salter M, Taylor M, Garzia L, Morrisy S, Skowron P, Jelveh S, Lindsay P, Largaespada D, Collier L, Dupuy A, Hill R, Taylor M, Hsieh TH, Wang HW, Cheng WC, Wong TT, Huang X, He Y, Dubuc A, Hashizume R, Zhang W, Stehbens S, Younger S, Barshow S, Zhu S, Wu X, Taylor M, Mueller S, Weiss W, James D, Shuman M, Jan YN, Jan L, Marigil M, Jauregi P, Idoate MA, Xipell E, Aldave G, Gonzalez-Huarriz M, Tejada-Solis S, Diez-Valle R, Montero-Carcaboso A, Mora J, Alonso MM, Taylor K, Mackay A, Truffaux N, Morozova O, Butterfield Y, Phillipe C, Vinci M, de Torres C, Cruz O, Mora J, Hargrave D, Monje M, Puget S, Yip S, Jones C, Grill J, Kaul A, Chen YH, Dahiya S, Emnett R, Gianino S, Gutmann D, Miwa T, Oi S, Nonaka Y, Sasaki H, Yoshida K, Lopez E, de Leon AP, Sepulveda C, Zarate L, Diego-Perez J, Pong W, Ding L, McLellan M, Hussain I, Emnett R, Gianino S, Higer S, Leonard J, Guha A, Mardis E, Gutmann D, Sarkar C, Pathak P, Jha P, Purkait S, Sharma V, Sharma MC, Suri V, Faruq M, Mukherjee M, Sivasankaran B, Velayutham RP, Fraschilla IR, Morris KJ, MacDonald TJ, Read TA, Sturm D, Northcott P, Jones D, Korshunov A, Picard D, Lichter P, Huang A, Pfister S, Kool M, Yao TW, Zhang J, Anna B, Brummer T, Gupta N, Nicolaides T, Chan KM, Fang D, Gan H, Hashizume R, Yu C, Schroeder M, Gupta N, Mueller S, James D, Jenkins R, Sarkaria J, Zhang Z. PEDIATRICS LABORATORY RESEARCH. Neuro Oncol 2013. [DOI: 10.1093/neuonc/not186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Anderson N, Jackson J, Wada M, Schneider-Kolsky M, Rolfo M, Gan H, Kaegi K, Sneyd F, Lim Joon D, Khoo V. Creating Guidelines for Reactive and Prophylactic Enteral Feeding in Definitive (Chemo) IMRT for Head-and-Neck Cancer. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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41
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Han G, Liu D, Gan H, Li S, Wang Z, Tan W, Zhen W, Hu D. A Dosimetric Study of Intensity Modulated Radiation Therapy for Locally-Advanced Nasopharyngeal Carcinoma With or Without Hippocampal Sparing. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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42
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Jackson J, Wada M, Lee S, Gan H, Poon A, Gong S, Gunawardana D, Joon D, Khaw P, Scott A. OC-0325: Pre-Radiotherapy 18Fluoromisonidazole PET Predicts for Long Term Local Control and Survival in Head and Neck Cancer. Radiother Oncol 2013. [DOI: 10.1016/s0167-8140(15)32631-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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43
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Liew M, Murone C, Walkiewicz M, Mitchell P, Gan H, Barnett S, Russell P, Wright G, Scott A, John T. Correlation of wtEGFR Activation Assessed by mAB806 Binding and EGFR Kinase Mutations in Stage IIIA N2 NSCLC. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)34250-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Song C, Ma H, Yao C, Tao X, Gan H. Alveolar macrophage-derived vascular endothelial growth factor contributes to allergic airway inflammation in a mouse asthma model. Scand J Immunol 2012; 75:599-605. [PMID: 22324377 DOI: 10.1111/j.1365-3083.2012.02693.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Vascular endothelial growth factor (VEGF) is a potent proangiogenic factor that correlates with vascular permeability and remodelling in asthma. Recently, alveolar macrophages (AM) were shown to be an important source of VEGF during lung injury. Our previous studies demonstrated that AM are an important subset of macrophages in the initiation of asthmatic symptoms. Here, we further investigated whether AM-derived VEGF was required for allergic airway inflammation in asthma. In this study, we reported that the expression of VEGF in AM was significantly increased after allergen challenge. Depleting AM or neutralizing VEGF in alveolus prevented ovalbumin (OVA)-induced asthma-related inflammation by inhibiting the infiltration of inflammatory cells in the lung, reduced the level of the cytokines, IL-4, IL-5, and IL-13, in the bronchoalveolar lavage fluid (BALF) and decreased airway hyperresponsiveness (AHR). Moreover, the inhibition of miR-20b increased the protein level of VEGF in normal AM; conversely, increasing miR-20b in asthmatic AM resulted in decreased VEGF protein levels. These findings suggest that AM-derived VEGF is necessary for allergic airway inflammation in asthmatic mice and miR-20b negatively regulates this expression.
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Affiliation(s)
- C Song
- Departments of Immunology Pathology, Bengbu Medical College, Bengbu, China.
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Wada M, Chang J, Anderson N, Joon DL, Lee S, Gan H, Khoo V, Scott A. EP-1188 IMPROVING TUMOUR CONTROL IN HYPOXIC HEAD AND NECK CANCERS USING FMISO PET-BASED RADIOTHERAPY DOSE PAINTING. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)71521-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Tan V, Tan C, Chow J, Tan K, Lingamanaicker J, Lim V, Tong K, Leong G, Gan H, Goh Y, Lee S, Goh P. OP-016: FEASIBILITY OF STEP DOWN CARE UNIT IN PATIENTS WITH ACUTE ST ELEVATION MYOCARDIAL INFARCTION WHO REMAINED IN KILLIP CLASS 2 VERSUS KILLIP CLASS 1 IMMEDIATE POST SUCCESSFUL PRIMARY PERCUTANEOUS INTERVENTION: SINGLE CENTRE EXPERIENCE. Int J Cardiol 2011. [DOI: 10.1016/s0167-5273(11)70127-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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47
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Gan H, Matkovic K, Ammer A, Purgathofer W, Bennett D, Terblanche M. Interactive visual analysis of a large ICU database: a novel approach to data analysis. Crit Care 2011. [PMCID: PMC3061765 DOI: 10.1186/cc9555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Gan H, Kakar V, Madhavan B, Clough R, OʼSullivan G. Anaesthetic techniques for thoracic endovascular aortic aneurysm repair (TEVAR): Experience of a large single centre. Eur J Anaesthesiol 2010. [DOI: 10.1097/00003643-201006121-00290] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Leifer ND, Johnson VS, Ben-Ari R, Gan H, Lehnes JM, Guo R, Lu W, Muffoletto BC, Reddy T, Stallworth PE, Greenbaum SG. Solid-State NMR Studies of Chemically Lithiated CF. J Electrochem Soc 2010; 157:A148-A154. [PMID: 20676233 PMCID: PMC2911803 DOI: 10.1149/1.3267042] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Three types of fluorinated carbon, all in their original form and upon sequential chemical lithiations via n-butyllithium, were investigated by (13)C and (19)F solid-state NMR methods. The three starting CF(x) materials [where x = 1 (nominally)] were fiber based, graphite based, and petroleum coke based. The aim of the current study was to identify, at the atomic/molecular structural level, factors that might account for differences in electrochemical performance among the different kinds of CF(x). Differences were noted in the covalent F character among the starting compounds and in the details of LiF production among the lithiated samples.
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Affiliation(s)
- N. D. Leifer
- Department of Physics, Hunter College of The City University of New York, New York, New York 10065, USA
| | - V. S. Johnson
- Department of Physics, Hunter College of The City University of New York, New York, New York 10065, USA
| | - R. Ben-Ari
- Department of Physics, Hunter College of The City University of New York, New York, New York 10065, USA
| | - H. Gan
- Greatbatch, Incorporated, Clarence, New York 14031, USA
| | - J. M. Lehnes
- Greatbatch, Incorporated, Clarence, New York 14031, USA
| | - R. Guo
- Greatbatch, Incorporated, Clarence, New York 14031, USA
| | - W. Lu
- Greatbatch, Incorporated, Clarence, New York 14031, USA
| | | | - T. Reddy
- Department of Materials Science and Engineering, Rutgers University, New Brunswick, New Jersey 08854, USA
| | - P. E. Stallworth
- Department of Physics, Hunter College of The City University of New York, New York, New York 10065, USA
| | - S. G. Greenbaum
- Department of Physics, Hunter College of The City University of New York, New York, New York 10065, USA
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Le Tourneau C, Michiels S, Gan H, Siu L. Reporting of endpoints and tracking of failures in randomized trials of radiotherapy or concurrent chemoradiotherapy for locally advanced head and neck squamous cell cancer (LA-HNSCC). J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.6072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
6072 Background: Due to their anatomical complexity, the interactive effects of multiple treatment modalities, the difficulties in differentiating scar tissues versus residual disease and second cancers versus tumor recurrence, LA-HNSCC represent a challenging disease for the reporting of endpoints and the tracking of failures. Methods: We retrieved all randomized trials that began accrual on or after 1978, and enrolled previously untreated nonmetastatic HNSCC patients receiving primary (chemo)radiotherapy. The reporting of endpoints and the tracking of failures in these trials were analyzed. Failures were defined as events meeting a pre-specified endpoint definition. Results: Forty trials involving 13,892 patients fulfilled our inclusion criteria. A total of 125 endpoints were identified: primary versus secondary = 34:91, survival-based (e.g., overall survival [OS]) versus surrogate (e.g. locoregional control [LRC]) = 47:78. In 6 trials, no primary endpoint was identified. LRC and OS accounted for 70% of primary endpoints. All but one trial reported at least one secondary endpoint, with a median of 2 per trial (range: 0–5), and as many as 17 different types of secondary endpoints were reported. Among 72 endpoints tracking locoregional failures, 21/72 (29%) did not define locoregional failure, while 46/72 (64%) specified the absence of complete response as a failure. Whether salvage surgery or elective node dissection was performed or not was reported in less than half of the trials. Furthermore, it was usually not specified if residual disease found during these procedures would account for failure or not. The means (i.e. clinical and/or radiological examinations) to ascertain failures and the protocol-specified timing to track failures were reported in 41% and 67% of surrogate endpoints, respectively. The tracking of other types of failure beyond the first failure is not reported by any of the trials. The reporting of second cancers was found in 15/40 (38%) trials, whereas the duration of follow-up was quantified in 31/40 (78%) trials. Conclusions: These results demonstrate the vast heterogeneity in endpoint reporting and tracking of failures in clinical trials of LA-HNSCC. No significant financial relationships to disclose.
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Affiliation(s)
- C. Le Tourneau
- Princess Margaret Hospital, Toronto, ON, Canada; Institut Gustave Roussy, Villejuif, France
| | - S. Michiels
- Princess Margaret Hospital, Toronto, ON, Canada; Institut Gustave Roussy, Villejuif, France
| | - H. Gan
- Princess Margaret Hospital, Toronto, ON, Canada; Institut Gustave Roussy, Villejuif, France
| | - L. Siu
- Princess Margaret Hospital, Toronto, ON, Canada; Institut Gustave Roussy, Villejuif, France
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