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Rajagopal S, Yao X, Abadir W, Baetz TD, Easson AM, Knight G, McWhirter E, Nessim C, Rosen CF, Sun A, Wright FC, Petrella TM. An Ontario Health (Cancer Care Ontario) Clinical Practice Guideline: Surveillance Strategies in Patients with Stage I, II, III or Resectable IV Melanoma Who Were Treated with Curative Intent. Clin Oncol (R Coll Radiol) 2024; 36:243-253. [PMID: 38336503 DOI: 10.1016/j.clon.2024.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/20/2023] [Accepted: 01/15/2024] [Indexed: 02/12/2024]
Abstract
AIMS To make recommendations on managing the surveillance of patients with stage I, II, III or resectable IV melanoma who are clinically free of disease following treatment with curative intent. MATERIALS AND METHODS This guideline was developed by Ontario Health's (Cancer Care Ontario's) Program in Evidence-Based Care and the Melanoma Disease Site Group (including seven medical oncologists, four surgical oncologists, three dermatologists, one radiation oncologist and one patient representative). The MEDLINE, EMBASE, Cochrane Library, PROSPERO databases and the main relevant guideline websites were searched. Internal and external reviews were conducted, with final approval by the Program in Evidence-Based Care and the Melanoma Disease Site Group. The Grading of Recommendations, Assessment, Development and Evaluation approach was followed, and the Modified Delphi method was used. RESULTS Based on the current evidence (eight eligible original study papers and four relevant guidelines) and the clinical opinions of the authors of this guideline, the initial recommendations were made. To reach 75% agreement for each recommendation, the Melanoma Disease Site Group (16 members) voted twice and one recommendation was voted on three times. After a comprehensive internal and external review process (including national and international reviewers), 12 recommendations, three weak recommendations and six qualified statements were ultimately made. CONCLUSIONS After a systematic review, a comprehensive internal and external review process and a consensus process, the current guideline has been created. The guideline authors believe that this guideline will help clinicians, patients and policymakers make well-informed healthcare decisions that will guide them in clinical melanoma surveillance and ultimately assist in improving patient outcomes.
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Affiliation(s)
- S Rajagopal
- Trillium Health Partners, Credit Valley Hospital, Peel Regional Cancer Centre, Mississauga, Ontario, Canada.
| | - X Yao
- Department of Oncology, Department of Health Research Methods Evidence and Impact, McMaster University, Hamilton, Ontario, Canada; Program in Evidence-Based Care, Ontario Health (Cancer Care Ontario), Hamilton, Ontario, Canada.
| | - W Abadir
- Odette Cancer Centre, Sunnybrook Health Sciences Centre, Ontario, Canada
| | - T D Baetz
- Cancer Centre of Southeastern Ontario, Queen's Cancer Research Institute, Kingston, Ontario, Canada
| | - A M Easson
- Department of Surgery, Marvelle Koffler Breast Centre, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - G Knight
- Department of Oncology, Grand River Regional Cancer Centre, Grand River Hospital, Kitchener, Ontario, Canada
| | - E McWhirter
- Department of Medical Oncology, Juravinski Cancer Centre, Hamilton Health Sciences, Hamilton, Ontario, Canada
| | - C Nessim
- Department of Surgery, University of Ottawa, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - C F Rosen
- Division of Dermatology, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - A Sun
- Department of Radiation Oncology, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - F C Wright
- Department of Surgery, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - T M Petrella
- Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
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Xu BL, Ling SQ, Zhang Y, Liu XC, Luo Y, Yao X. [Study the involvement of Langerin in mediating epicutaneous sensitization of atopic dermatitis-like mouse model]. Zhonghua Yi Xue Za Zhi 2023; 103:3041-3046. [PMID: 37813655 DOI: 10.3760/cma.j.cn112137-20230724-00084] [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: 10/11/2023]
Abstract
Objective: To explore the role of Langerin in mediating epicutaneous sensitization of atopic dermatitis (AD) in mouse model. Methods: Mice were topically treated with calcipotriol (MC903) plus ovalbumin (OVA) on the ears to establish AD mouse models, and mice were divided into wild-type control group, wild-type AD group, Langerin knockout control group, and Langerin knockout AD group. Changes of lesion were daily observed. Infiltration of inflammatory cells, mRNA expression of Tslp, Il4, Il13, Il17a, and Il22, levels of serum total IgE, OVA-specific IgE (sIgE), OVA sIgG1 and OVA sIgG2a, proportion of regulatory T (Treg) cells in cervical draining lymph nodes were evaluated at the end of model preparation. Results: Skin tumidness and thickness, dermal inflammatory cells infiltration, the mRNA expression levels of Tslp, Il4, Il13, Il17a and Il22 in wild-type AD groups were higher than those in wild-type control groups, with (1.80±0.66, 1.64±0.25, 1.71±0.54, 2.41±0.23, 2.49±0.32) and (0.53±0.45, 0.85±0.29, 0.73±0.50, 0.72±0.25, 0.56±0.29), respectively (all P<0.05). In addition, the levels of serum total IgE, OVA sIgE and OVA sIgG1 in wild-type AD groups were higher than those in wild-type control groups, with [(1 216.00±572.70) ng/ml, (597.00±538.30) ng/ml, 1.59±0.09] and [(24.22±35.04) ng/ml, (20.01±41.71) ng/ml, 1.16±0.03], respectively (all P<0.05). In Langerin knockout mice, compared to wild-type mice, skin erythema, skin tumidness, epidermal thickening, inflammatory cell infiltration were more obvious; the mRNA expression levels of Tslp, Il4, Il13, Il17a and Il22 were upregulated with (8.19±6.44, 2.53±0.69, 2.82±0.73, 3.94±1.32, 3.80±1.43) (all P<0.05); the levels of serum total IgE, OVA sIgE and OVA sIgG1 were significantly increased with (2 508.00±657.10) ng/ml, (1 808.00±470.70) ng/ml, (1.73±0.09) (all P<0.05); the number of CD4+CD25+CD127-Treg cells were decreased significantly with (13.25±0.96)% and (15.31±1.47)%, respectively (P<0.05). Conclusion: Langerin is involved in mediating epicutaneous sensitization of the AD mouse model and plays a negative immunoregulatory role.
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Affiliation(s)
- B L Xu
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
| | - S Q Ling
- Dermatology Hospital, Southern Medical University, Guangzhou 510091, China
| | - Y Zhang
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
| | - X C Liu
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
| | - Y Luo
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
| | - X Yao
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
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Feng X, Tang B, Wang P, Kang S, Liao X, Yao X, Wang X, Orlandini LC. Effectiveness of Bladder Filling Control during Online MR-Guided Adaptive Radiotherapy for Rectum Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e725-e726. [PMID: 37786113 DOI: 10.1016/j.ijrobp.2023.06.2238] [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) MR-guided adaptive radiotherapy (MRgART) treatment sessions at MR-Linac are time-consuming and changes in bladder filling during the session can impact the treatment dosimetry. In this work, we present the procedure implemented in the clinical workflow to stabilize bladder filling during the MR based adaptive radiotherapy sessions and evaluate its effectiveness and the resulting dosimetric impact on the adaptive plan. MATERIALS/METHODS Twenty-five rectum cancer patients treated at 1.5T MR-Linac with a short course radiotherapy (25 Gy in 5 fractions of 5 Gy each) were included in this retrospective study. Patients were treated with the adapt-to-shape workflow consisting of a plan adaptation based on the MRI acquired in each session and optimized on the corresponding MR-based synthetic CT. Considering the significant interval time between the acquisition of the first daily MRI used for plan adaptation, and the beam delivery, a bladder catheter was used to stabilize the bladder filling; the procedure consists of emptying the bladder and refilling it with a well-known amount of physiological solution before each MRI acquisition. Two MRIs were acquired at each session: the first was used for plan adaptation and the second was acquired while approving the adapted plan, to be rigidly registered with the first to ensure the appropriateness of the isodoses on the ongoing delivery treatment. A total of 125 sessions and 250 MRI images and bladder contours were analyzed; for each fraction, the time interval between the first and second MRI and the corresponding bladder volumes were recorded; the consistency of bladder volumes and shapes along each online session was assessed with the dice similarity index (DSC) and Hausdorff distance (HD); the impact on plan dosimetry was evaluated by comparing target and bladder DVH cut off points of the plan on the two different MRI datasets. RESULTS The time interval between the first and second MRI, averaged over the 125 sessions is 39.0 min, range (18.6-75.8) min. The changes in bladder volumes, DSC index, HD, and the differences between the bladder and target DVH cut-off points are shown in the table below. The DSC and HD are comparable to inter-observer variability in manual contour segmentation, with an average DSC of 0.91 and average HD of 2.13 mm; the average differences in bladder and target dosimetry remain under 0.63% and 0.10%, respectively. CONCLUSION The use of a procedure in the clinical workflow of MRgART to stabilize the bladder filling throughout the online session may be helpful to guarantee the accuracy of the ongoing delivered treatment.
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Affiliation(s)
- X Feng
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - B Tang
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - P Wang
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - S Kang
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - X Liao
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - X Yao
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - X Wang
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - L C Orlandini
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
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Yao X, Liu M, Liao X, Yuan K, Li J, Wang X, Orlandini LC. Study on the Clinical Use of a Respiratory Navigator Combined with Breath-Hold for MRI- Guided Liver SBRT. Int J Radiat Oncol Biol Phys 2023; 117:e740-e741. [PMID: 37786151 DOI: 10.1016/j.ijrobp.2023.06.2274] [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) Respiratory movement strongly affects the accuracy of stereotactic body radiation therapy (SBRT) of liver malignancies treated without the use of a respiratory gating system. This study investigates the feasibility and advantages of using a respiratory navigator-guided combined with patient breath-hold for liver SBRT in an adaptive magnetic-resonance guided workflow. MATERIALS/METHODS Clinical datasets of 10 liver cancer patients treated with 1.5T MR-Linac with respiratory navigator-guided SBRT combined with patient breath-hold were retrospectively analyzed. All patients underwent simulation CT with and without contrast, and 4D-CT and 3D-T2w MRI without contrast. Patients received a prescription dose ranging from 36 to 50 Gy in 5 to 8 fractions and followed the adapt to shape (ATS) workflow including contours adjustment and a subsequent MR-based synthetic CT (sCT) calculation on the online MRI acquired. The reference treatment plan was optimized on the expiratory phase of the 4D-CT, and during the online session the contours and the adapted plans were performed using the 3D-T2w navigator MRI of the patient's end-expiratory signal; 2D-T2w real-time monitoring MRI was also used as support for the contour's definition. The radiation therapist instructed the patients to hold their breath at the end of the breathing cycle for the time of the beam on. A total of 59 fractions were analyzed. For each fraction the dosimetric parameters of the target and normal liver of the adaptive and reference plans were compared; particularly the volume, the conformity index (CI) and gradient index (GI) for the target, and V5, V10 and Dmean for the normal liver. T-student statistical analysis was performed; a p-value less than 0.05 was considered statistically significant. RESULTS In the free breathing state, the 3D-T2w navigator MRI images enable a clear visualization of the tumor and its boundaries. The average target CI of the adaptive and reference plans is not significantly different (p = 0.448), while the GI is significantly higher (p = 0.043). Normal liver V10 and Dmean are lower and V5 is slightly increased, but without statistical differences. The mean values and standard deviation of the dosimetric parameters of the reference and adapted plans are shown in the Table below. CONCLUSION The use of a respiratory navigator combined with the breath-hold for MRI- guided liver SBRT allows clear visualization of the tumor, ensures the accuracy of the delivered dose and may be considered an alternative when the respiratory gating system is not available during MRgART sessions.
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Affiliation(s)
- X Yao
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - M Liu
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - X Liao
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - K Yuan
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - J Li
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - X Wang
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - L C Orlandini
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
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Yuan K, Liao X, Yao X, Liu M, Xu P, Yin J, Li C, Orlandini LC. Study on Lattice Radiotherapy Treatments (LRT) for Head and Neck Bulky Tumors. Int J Radiat Oncol Biol Phys 2023; 117:e596-e597. [PMID: 37785800 DOI: 10.1016/j.ijrobp.2023.06.1954] [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) Lattice radiotherapy (LRT) exploits various effects of radiation, such as the bystander effect and the abscopal effect, and consists on the administration of high dose fraction in small areas with large tumor masses, helping to solve the problem of treating bulky disease, especially if it is located in a critical anatomical area. The optimization of LRT treatment plans is challenging due to the difficulty to generate spots of high dose within the tumor with consequent high gradient. This study compares the plan dosimetry and delivery time of two delivery techniques VMAT and CyberKnife for LRT treatments of bulky head and neck lesions. MATERIALS/METHODS Six patients with giant head and neck tumors who received LRT at our institution were included in this study. Target and OARs were contoured following international guidelines; to allow easy identification of the desired high gradient zones, an artificial geometrical lattice structure with spherical vertices was arranged inside the target volume (GTV), and the vertices of the lattice representing the high dose boost volumes (GTVboost) were delineated. The GTVboost and GTV were prescribed to receive 12 Gy and 3 Gy, respectively in a single fraction. Separate VMAT and CyberKnife LRT plans were optimized for each patient with lattice vertex of 0.5 diameter and center-to-center distances of 1.5 cm (LRT1.5) and 3 cm (LRT3). The dose heterogeneity was measured as the peak-to-valley dose ratio (PVDR), with the traditional definition being replaced by the D10/D90 ratio, where D10 and D90 represent the doses covering 10% and 90% of the GTV, respectively. For each plan generated, the treatment delivery time, the monitor units (MU), and the PVDR were assessed. Pre-treatment plan verifications were performed with ArcCheck array and Gafchromics film for VMAT and CyberKnife, respectively, using gamma analysis criteria of 3%-3mm. RESULTS The mean PVDR obtained for VMAT LRT plans were 2.0 and 2.6 for LRT1.5 and LRT3, respectively, and 3.2 and 4.7, respectively for CyberKnife LRT plans. For each pre-treatment plan dose verification, the gamma passing rate (GPR) was higher than 95.0 %; CyberKnife delivery time and MU were more than 10 times higher than that of VMAT, nevertheless, VMAT had a lower PVDR. The detailed results are shown in the table below. CONCLUSION CyberKnife LRT has a strong ability to place the peak dose within the target, generating a higher peak-to-valley dose ratio, however its use is partially invalidated by the long beam delivery times and the resulting high MU number; the use of the VMAT LRT technique allows clinically adequate dosimetry with acceptable delivery times.
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Affiliation(s)
- K Yuan
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - X Liao
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - X Yao
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - M Liu
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - P Xu
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - J Yin
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - C Li
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
| | - L C Orlandini
- Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, Chengdu, China
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Yao X, Saikawa E, Warner S, D’Souza PE, Ryan PB, Barr DB. Phytoremediation of Lead-Contaminated Soil in the Westside of Atlanta, GA. Geohealth 2023; 7:e2022GH000752. [PMID: 37637997 PMCID: PMC10450253 DOI: 10.1029/2022gh000752] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 06/13/2023] [Accepted: 07/19/2023] [Indexed: 08/29/2023]
Abstract
Phytoremediation has been explored as a cost-effective method to remediate soil Pb contamination. A greenhouse study was conducted to evaluate the efficacy of Vigna unguiculata, Brassica pekinensis, Gomphrena globose, and Helianthus annuus for removing and immobilizing Pb in soil collected from the Westside Lead Superfund site in Atlanta. Plants were cultivated in sampled soil with a Pb concentration of 515 ± 10 mg/kg for 60 days. Soils growing H. annuus were additionally treated with ethylenediaminetetraacetic acid (EDTA) (0.1 g/kg) or compost (20% soil blend) to assess their capabilities for enhancing phytoremediation. Mean post-phytoremediation Pb concentrations in the four plant species were 23.5, 25.7, 50.0, and 58.1 mg/kg dry weight (DW), respectively, and were substantially higher than 1.55 mg/kg DW in respective plant species grown in control soils with no Pb contamination. The highest Pb concentration, translocation factor, and biomass were found in V. unguiculate among four species without soil amendments. H. annuus treated with EDTA and compost resulted in a significant increase in the total Pb uptake and larger biomass compared to non-treated plants, respectively. Although this study found that V. unguiculata was the best candidate for Pb accumulation and immobilization among four species, soil remediation was limited to 54 mg/kg in a growing season. We find that it is critically important to perform phytostabilization in a secure manner, since Pb bioavailability of edible plant parts implies the potential risk associated with their unintentional consumption. Efficiently and effectively remediating Pb-contaminated soils in a low-cost manner needs to be further studied.
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Affiliation(s)
- X. Yao
- Department of Environmental SciencesEmory UniversityAtlantaGAUSA
| | - E. Saikawa
- Department of Environmental SciencesEmory UniversityAtlantaGAUSA
- Gangarosa Department of Environmental HealthEmory UniversityAtlantaGAUSA
| | - S. Warner
- Department of Environmental SciencesEmory UniversityAtlantaGAUSA
| | - P. E. D’Souza
- Gangarosa Department of Environmental HealthEmory UniversityAtlantaGAUSA
| | - P. B. Ryan
- Gangarosa Department of Environmental HealthEmory UniversityAtlantaGAUSA
| | - D. B. Barr
- Gangarosa Department of Environmental HealthEmory UniversityAtlantaGAUSA
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Ge J, Guo X, Zhao W, Zhang R, Bian Q, Luo L, Linlin X, Yao X. EVALUATION OF PRE-ABLATION NLR AND LMR AS PREDICTORS OF DISTANT METASTASES IN PATIENTS WITH DIFFERENTIATED THYROID CANCER. Acta Endocrinol (Buchar) 2023; 19:215-220. [PMID: 37908873 PMCID: PMC10614579 DOI: 10.4183/aeb.2023.215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Objective This research aim was to evaluates the role of the pre-ablation neutrophil-to-lymphocyte ratio (NLR) and lymphocyte-to-monocyte ratio (LMR) as predictors of distant metastases in patients with differentiated thyroid cancer (DTC). Methods A retrospective analysis was given to 140 patients with DTC who received 131I remnant ablation after surgery. The patients were divided into two groups based on the existence of distant metastasis. Results The two groups showed no significant difference in age, gender, WBCs, neutrophils, monocytes, eosinophils, basophils and whether the tumor was multifocal. In the univariate analysis, significant differences were found in tumor size (p=0.021), lymphocyte (p=0.012), NLR (p=0.027), and LMR (p=0.007). According to the ROC curves, NLR had an AUC of 0.612 ± 0.097 with a cut-off value of 1.845, sensitivity of 60.0%, and specificity of 66.2% (p=0.027). LMR had an AUC of 0.638 ± 0.095 with a cut-off value of 4.630, sensitivity of 84.6%, and specificity of 35.4% (p=0.007). In the multivariate analysis, larger tumor size (OR=5.246, 95% CI 1.269-10.907, p=0.009) and higher NLR (OR=2.087, 95% CI 0.977-4.459, p=0.034) were statistically significant for distant metastases. Conclusion This research reveals that pre-ablation NLR and tumor size are significantly statistically correlated with distant metastases in patients with DTC.
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Affiliation(s)
- J. Ge
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - X. Guo
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - W. Zhao
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - R. Zhang
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - Q. Bian
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - L. Luo
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - X. Linlin
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - X. Yao
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
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Huo HM, Yao X, Lai YJ, Lu W, Liu CL, Huang ZH, Wei ZZ, Xie Y. [Analysis of success rate of organoid construction of nasopharyngeal carcinoma by first-day suspension method]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:250-255. [PMID: 36878504 DOI: 10.3760/cma.j.cn115330-20220801-00473] [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: 03/08/2023]
Abstract
Objective: To investigate the efficacy of the first-day suspension method for improving the success rate of construction of nasopharyngeal carcinoma-patient derived organoids (NPC-PDO). Methods: The tumor samples of 14 nasopharyngeal carcinoma(NPC) patients, i.e.,13 males and 1 female, with a mean age of 43.0±12.0 years old, were collected from the Affiliated Tumor Hospital of Guangxi Medical University and the First Affiliated Hospital of Guangxi Medical University from January 2022 to July 2022. The tumor samples of 3 patients were digested into single cell suspension and divided into 2 groups, for comparing the efficacy of NPC-PDO construction by the direct inoculation method and the first-day suspension method. The remaining 11 patients were randomized to receive either the direct inoculation method or the first-day suspension method for NPC-PDO construction. The diameter and the number of spheres of NPC-PDO constructed by the two methods were compared by optical microscope; the 3D cell viability detection kit was used to compare the cell viability; the survival rates were compared by trypan blue staining; the success rates of the two construction methods were compared; the number of cases which could be successfully passaged for more than 5 generations and were consistent with the original tissue by pathological examination was counted; and the dynamic changes of cells in suspension overnight were observed by live cell workstation. The independent sample t-test was applied to compare the measurement data of the two groups, and the chi-square test was used to compare the classification data. Results: Compared with the direct inoculation, the diameter and the number of spheres of NPC-PDO constructed by the first-day suspension method were increased, with a higher cell activity, and the success rate of construction was obviously improved (80.0% vs 16.7%, χ2=4.41, P<0.05). In the suspension state, some of the cells aggregated and increased their ability to proliferate. Conclusion: The first-day suspension method can improve the success rate of NPC-PDO construction, especially for those whose original tumor sample size is small.
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Affiliation(s)
- H M Huo
- Life Sciences Institute, Guangxi Medical University, Nanning 530021, China
| | - X Yao
- Life Sciences Institute, Guangxi Medical University, Nanning 530021, China Guangxi Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor, Nanning 530021, China
| | - Y J Lai
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - W Lu
- Department of Head and Neck Surgery, the Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - C L Liu
- Department of Head and Neck Surgery, the Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - Z H Huang
- Department of Head and Neck Surgery, the Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - Z Z Wei
- Guangxi Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor, Nanning 530021, China Department of Head and Neck Surgery, the Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - Y Xie
- Life Sciences Institute, Guangxi Medical University, Nanning 530021, China Guangxi Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor, Nanning 530021, China
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Wang M, Ling Y, Dong Z, Yao X, Gan Y, Zhou C, Su Y. GPU-accelerated iterative method for FD-OCT image reconstruction with an image-level cross-domain regularizer. Opt Express 2023; 31:1813-1831. [PMID: 36785208 DOI: 10.1364/oe.478970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 12/31/2022] [Indexed: 06/18/2023]
Abstract
The image reconstruction for Fourier-domain optical coherence tomography (FD-OCT) could be achieved by iterative methods, which offer a more accurate estimation than the traditional inverse discrete Fourier transform (IDFT) reconstruction. However, the existing iterative methods are mostly A-line-based and are developed on CPU, which causes slow reconstruction. Besides, A-line-based reconstruction makes the iterative methods incompatible with most existing image-level image processing techniques. In this paper, we proposed an iterative method that enables B-scan-based OCT image reconstruction, which has three major advantages: (1) Large-scale parallelism of the OCT dataset is achieved by using GPU acceleration. (2) A novel image-level cross-domain regularizer was developed, such that the image processing could be performed simultaneously during the image reconstruction; an enhanced image could be directly generated from the OCT interferogram. (3) The scalability of the proposed method was demonstrated for 3D OCT image reconstruction. Compared with the state-of-the-art (SOTA) iterative approaches, the proposed method achieves higher image quality with reduced computational time by orders of magnitude. To further show the image enhancement ability, a comparison was conducted between the proposed method and the conventional workflow, in which an IDFT reconstructed OCT image is later processed by a total variation-regularized denoising algorithm. The proposed method can achieve a better performance evaluated by metrics such as signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR), while the speed is improved by more than 30 times. Real-time image reconstruction at more than 20 B-scans per second was realized with a frame size of 4096 (axial) × 1000 (lateral), which showcases the great potential of the proposed method in real-world applications.
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10
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Chua J, Li C, Ho LKH, Wong D, Tan B, Yao X, Gan A, Schwarzhans F, Garhöfer G, Sng CCA, Hilal S, Venketasubramanian N, Cheung CY, Fischer G, Vass C, Wong TY, Chen CLH, Schmetterer L. A multi-regression framework to improve diagnostic ability of optical coherence tomography retinal biomarkers to discriminate mild cognitive impairment and Alzheimer’s disease. Alzheimers Res Ther 2022; 14:41. [PMID: 35272711 PMCID: PMC8908577 DOI: 10.1186/s13195-022-00982-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 02/23/2022] [Indexed: 11/24/2022]
Abstract
Background Diagnostic performance of optical coherence tomography (OCT) to detect Alzheimer’s disease (AD) and mild cognitive impairment (MCI) remains limited. We assessed whether compensating the circumpapillary retinal nerve fiber layer (cpRNFL) thickness for multiple demographic and anatomical factors as well as the combination of macular layers improves the detection of MCI and AD. Methods This cross-sectional study of 62 AD (n = 92 eyes), 108 MCI (n = 158 eyes), and 55 cognitively normal control (n = 86 eyes) participants. Macular ganglion cell complex (mGCC) thickness was extracted. Circumpapillary retinal nerve fiber layer (cpRNFL) measurement was compensated for several ocular factors. Thickness measurements and their corresponding areas under the receiver operating characteristic curves (AUCs) were compared between the groups. The main outcome measure was OCT thickness measurements. Results Participants with MCI/AD showed significantly thinner measured and compensated cpRNFL, mGCC, and altered retinal vessel density (p < 0.05). Compensated RNFL outperformed measured RNFL for discrimination of MCI/AD (AUC = 0.74 vs 0.69; p = 0.026). Combining macular and compensated cpRNFL parameters provided the best detection of MCI/AD (AUC = 0.80 vs 0.69; p < 0.001). Conclusions and relevance Accounting for interindividual variations of ocular anatomical features in cpRNFL measurements and incorporating macular information may improve the identification of high-risk individuals with early cognitive impairment. Supplementary Information The online version contains supplementary material available at 10.1186/s13195-022-00982-0.
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11
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Li X, Cao S, Liu H, Yao X, Brott BC, Litovsky SH, Song X, Ling Y, Gan Y. Multi-Scale Reconstruction of Undersampled Spectral-Spatial OCT Data for Coronary Imaging Using Deep Learning. IEEE Trans Biomed Eng 2022; 69:3667-3677. [PMID: 35594212 PMCID: PMC10000308 DOI: 10.1109/tbme.2022.3175670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Coronary artery disease (CAD) is a cardiovascular condition with high morbidity and mortality. Intravascular optical coherence tomography (IVOCT) has been considered as an optimal imagining system for the diagnosis and treatment of CAD. Constrained by Nyquist theorem, dense sampling in IVOCT attains high resolving power to delineate cellular structures/features. There is a trade-off between high spatial resolution and fast scanning rate for coronary imaging. In this paper, we propose a viable spectral-spatial acquisition method that down-scales the sampling process in both spectral and spatial domain while maintaining high quality in image reconstruction. The down-scaling schedule boosts data acquisition speed without any hardware modifications. Additionally, we propose a unified multi-scale reconstruction framework, namely Multiscale-Spectral-Spatial-Magnification Network (MSSMN), to resolve highly down-scaled (compressed) OCT images with flexible magnification factors. We incorporate the proposed methods into Spectral Domain OCT (SD-OCT) imaging of human coronary samples with clinical features such as stent and calcified lesions. Our experimental results demonstrate that spectral-spatial down-scaled data can be better reconstructed than data that are down-scaled solely in either spectral or spatial domain. Moreover, we observe better reconstruction performance using MSSMN than using existing reconstruction methods. Our acquisition method and multi-scale reconstruction framework, in combination, may allow faster SD-OCT inspection with high resolution during coronary intervention.
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12
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Zhou L, Dai T, Zhang D, Guo H, Zhou F, Shi B, Wang S, Ji Z, Wang C, Yao X, Wei Q, Chen N, Xing J, Yang J, Kong C, Huang J, Ye D. 152P An epidemiologic study on PD-L1 expression with clinical observation of initial treatment pattern in the Chinese muscle invasive urothelial bladder carcinoma patients. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.187] [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: 12/05/2022] Open
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13
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Tang Y, Yao X. SYNTHESIS OF A NEW LAYERED Zn(II) COORDINATION POLYMER VIA DUAL-LIGAND STRATEGY: LUMINESCENCE SENSING FOR DETECTION OF Fe3+ ION. J STRUCT CHEM+ 2022. [DOI: 10.1134/s002247662211004x] [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: 12/12/2022]
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14
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Li L, Chen Q, Zhang N, Yao X, Wang C. Use of antidepressants following hysterectomy with or without oophorectomy: A national sample in the US. Maturitas 2022; 167:32-38. [DOI: 10.1016/j.maturitas.2022.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 09/11/2022] [Accepted: 09/25/2022] [Indexed: 10/14/2022]
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15
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Liu J, Zhan LY, Yao X, Gao HB, Xie FF, Chang F. [The importance of intranasal trigeminal event-related potentials test for patients with olfactory dysfunction]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:974-979. [PMID: 36058665 DOI: 10.3760/cma.j.cn115330-20220407-00174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To analyze the characteristics of trigeminal event-related potentials (tERPs) in different kinds of olfactory disorders (OD), and to evaluate the importance of tERPs for the patients with olfactory dysfunction. Methods: Clinical data of 314 patients with olfactory dysfunction from the Smell and Taste Clinics in Beijing Anzhen Hospital from 2015 to 2021 were retrospectively reviewed, including 158 males and 156 females, aging from 6 to 78 years. The control group consisted of healthy people from medical examination center, who were gender and age matched. The clinical characteristics of OD were analyzed using Sniffin' Sticks test, olfactory event-related potentials (oERPs), tERPs and acoustic rhinometry test. SPSS 17.0 software was used to compare the difference of tERPs between the two groups, and to analyze the related factors affecting trigeminal function. Results: The ratio of tERPs presence was different in OD caused by different reasons: head traumatic OD (54.9%), post-virus infection OD (63.6%), sinonasal inflammatory OD (68.4%) and OD due to other causes (56.9%). Compared with controls, tERPs signals in OD patients showed a significant lower amplitude in the N1 wave (all P<0.001), and lower amplitude in the P2 wave in most OD patients (head trauma t=-4.11, P<0.001; sinonasal inflammation t=-2.04, P=0.046; others t=-2.40, P=0.020) except in OD by post-virus infection (t=-1.98, P=0.052). tERPs signals in OD patients by sinonasal inflammation showed longer latency in the N1 wave (t=2.15, P=0.036), but this difference was not observed in other OD patients (all P>0.05). tERPs signals were significantly correlated with the Sniffin' Sticks score, deficiency of oERPs and nasal minimum cross-sectional area (all P<0.05). Conclusions: OD patients show neurophysiologic deficits in trigeminal function. The absence of tERPs or lower amplitude in N1 waves are the important characteristics of patients with OD.
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Affiliation(s)
- J Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Children's Hospital, Capital Institute of Pediatrics, Beijing 100020, China
| | - L Y Zhan
- Department of Otorhinolaryngology Head and Neck Surgery, Children's Hospital, Capital Institute of Pediatrics, Beijing 100020, China
| | - X Yao
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - H B Gao
- Department of Otorhinolaryngology Head and Neck Surgery, Children's Hospital, Capital Institute of Pediatrics, Beijing 100020, China
| | - F F Xie
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Feifan Chang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
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16
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Chua J, Bostan M, Li C, Sim YC, Bujor I, Wong D, Tan B, Yao X, Schwarzhans F, Garhöfer G, Fischer G, Vass C, Tiu C, Pirvulescu R, Popa-Cherecheanu A, Schmetterer L. A multi-regression approach to improve optical coherence tomography diagnostic accuracy in multiple sclerosis patients without previous optic neuritis. Neuroimage Clin 2022; 34:103010. [PMID: 35447469 PMCID: PMC9043868 DOI: 10.1016/j.nicl.2022.103010] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 08/24/2021] [Revised: 04/12/2022] [Accepted: 04/12/2022] [Indexed: 01/19/2023]
Abstract
OCT diagnostics for MS improved after combining macular data with compensated peripapillary RNFL.
Background Optical coherence tomography (OCT) is a retinal imaging system that may improve the diagnosis of multiple sclerosis (MS) persons, but the evidence is currently equivocal. To assess whether compensating the peripapillary retinal nerve fiber layer (pRNFL) thickness for ocular anatomical features as well as the combination with macular layers can improve the capability of OCT in differentiating non-optic neuritis eyes of relapsing-remitting MS patients from healthy controls. Methods 74 MS participants (n = 129 eyes) and 84 age- and sex-matched healthy controls (n = 149 eyes) were enrolled. Macular ganglion cell complex (mGCC) thickness was extracted and pRNFL measurement was compensated for ocular anatomical factors. Thickness measurements and their corresponding areas under the receiver operating characteristic curves (AUCs) were compared between groups. Results Participants with MS showed significantly thinner mGCC, measured and compensated pRNFL (p ≤ 0.026). Compensated pRNFL achieved better performance than measured pRNFL for MS differentiation (AUC, 0.75 vs 0.80; p = 0.020). Combining macular and compensated pRNFL parameters provided the best discrimination of MS (AUC = 0.85 vs 0.75; p < 0.001), translating to an average improvement in sensitivity of 24 percent for differentiation of MS individuals. Conclusion The capability of OCT in MS differentiation is made more robust by accounting OCT scans for individual anatomical differences and incorporating information from both optic disc and macular regions, representing markers of axonal damage and neuronal injury, respectively.
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Affiliation(s)
- Jacqueline Chua
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore; Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Medical School, National University of Singapore, Singapore; SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore
| | - Mihai Bostan
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania; Ophthalmology Emergency Hospital, Bucharest, Romania
| | - Chi Li
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore; SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore
| | - Yin Ci Sim
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore; SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore
| | - Inna Bujor
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Damon Wong
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore; SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore; School of Chemical and Biological Engineering, Nanyang Technological University, Singapore
| | - Bingyao Tan
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore; SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore; School of Chemical and Biological Engineering, Nanyang Technological University, Singapore
| | - Xinwen Yao
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore; SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore; School of Chemical and Biological Engineering, Nanyang Technological University, Singapore
| | - Florian Schwarzhans
- Center for Medical Statistics Informatics and Intelligent Systems, Section for Medical Information Management, Medical University Vienna, Vienna, Austria; Department of Clinical Pharmacology, Medical University Vienna, Vienna, Austria
| | - Gerhard Garhöfer
- Department of Clinical Pharmacology, Medical University Vienna, Vienna, Austria
| | - Georg Fischer
- Center for Medical Statistics Informatics and Intelligent Systems, Section for Medical Information Management, Medical University Vienna, Vienna, Austria
| | - Clemens Vass
- Department of Ophthalmology and Optometry, Medical University Vienna, Vienna, Austria
| | - Cristina Tiu
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania; Emergency University Hospital, Department of Neurology, Bucharest, Romania
| | - Ruxandra Pirvulescu
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania; Emergency University Hospital, Department of Ophthalmology, Bucharest, Romania
| | - Alina Popa-Cherecheanu
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania; Emergency University Hospital, Department of Ophthalmology, Bucharest, Romania.
| | - Leopold Schmetterer
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore; Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Medical School, National University of Singapore, Singapore; SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore; School of Chemical and Biological Engineering, Nanyang Technological University, Singapore; Department of Clinical Pharmacology, Medical University Vienna, Vienna, Austria; Center for Medical Physics and Biomedical Engineering, Medical University Vienna, Vienna, Austria; Institute of Molecular and Clinical Ophthalmology, Basel, Switzerland.
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17
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Li J, Tang B, Liu M, Guo S, Yao X, Liao X, Feng X, Clara Orlandini L. PO-1554 Catching errors by synthetic CT in the clinical workflow of an MR-Linac. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03518-6] [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: 10/18/2022]
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18
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Ge J, Wang J, Liu H, Wan R, Yao X. 131I SUCCESSFULLY TREATED A CASE OF HYPERTHYROIDISM AFTER ALLOGENEIC HEMATOPOIETIC STEM CELL TRANSPLANTATION. Acta Endocrinol (Buchar) 2022; 18:238-240. [PMID: 36212265 PMCID: PMC9512369 DOI: 10.4183/aeb.2022.238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Hematopoietic stem cell transplantation (HSCT) is an effective treatment for various types of hereditary hematologic disease, hematological malignancy, primary immunodeficiency and metabolic disease. Thyroid dysfunction is a common complication of HSCT, which situation is mainly manifested as hypothyroidism and rarely as hyperthyroidism. This report presents a 28-year-old man who developed hyperthyroidism 9 years after sibling allogeneic HSCT, which was most likely caused by chronic GVHD. In the meantime, the patient also suffered from liver dysfunction and pancytopenia, for which he was inappropriate to take antithyroid drugs (ATD) for treatment of hyperthyroidism. The patient was orally administered 259 MBq 131I, an individualized dose. The symptoms of hyperthyroidism were mitigated by 131I treatment.
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Affiliation(s)
- J. Ge
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Department of Nuclear Medicine, Hefei, China
| | - J. Wang
- Jackson Memorial Hospital, University of Miami Miller School of Medicine - Division of Nuclear Medicine, Department of Radiology, Miami, United States
| | - H. Liu
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Department of Hematology, Hefei, China
| | - R. Wan
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Department of Nuclear Medicine, Hefei, China
| | - X. Yao
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Department of Nuclear Medicine, Hefei, China
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Chua J, Le T, Sim YC, Chye HY, Tan B, Yao X, Wong D, Ang BWY, Toh D, Lim H, Bryant JA, Wong TY, Chin CWL, Schmetterer L. Relationship of Quantitative Retinal Capillary Network and Myocardial Remodeling in Systemic Hypertension. J Am Heart Assoc 2022; 11:e024226. [PMID: 35253475 PMCID: PMC9075291 DOI: 10.1161/jaha.121.024226] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Background
This study examined the associations between quantitative optical coherence tomography angiography (OCTA) parameters and myocardial abnormalities as documented on cardiovascular magnetic resonance imaging in patients with systemic hypertension.
Methods and Results
We conducted a cross‐sectional study of 118 adults with hypertension (197 eyes). Patients underwent cardiovascular magnetic resonance imaging and OCTA (PLEX Elite 9000, Carl Zeiss Meditec). Associations between OCTA parameters (superficial and deep retinal capillary density) and adverse cardiac remodeling (left ventricular mass, remodeling index, interstitial fibrosis, global longitudinal strain, and presence of left ventricular hypertrophy) were studied using multivariable linear regression analysis with generalized estimating equations. Of the 118 patients with hypertension enrolled (65% men; median [interquartile range] age, 59 [13] years), 29% had left ventricular hypertrophy. After adjusting for age, sex, systolic blood pressure, diabetes, and signal strength of OCTA scans, patients with lower superficial capillary density had significantly higher left ventricular mass (β=−0.150; 95% CI, −0.290 to −0.010), higher interstitial volume (β=−0.270; 95% CI, −0.535 to −0.0015), and worse global longitudinal strain (β=−0.109; 95% CI, −0.187 to −0.032). Lower superficial capillary density was found in patients with hypertension with replacement fibrosis versus no replacement fibrosis (16.53±0.64 mm
‐1
versus 16.96±0.64 mm
‐1
;
P
=0.003).
Conclusions
We showed significant correlations between retinal capillary density and adverse cardiac remodeling markers in patients with hypertension, supporting the notion that the OCTA could provide a non‐invasive index of microcirculation alteration for vascular risk stratification in people with hypertension.
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Affiliation(s)
- Jacqueline Chua
- Singapore Eye Research InstituteSingapore National Eye Centre Singapore Singapore
- Academic Clinical Program Duke‐NUS Medical School National University of Singapore Singapore Singapore
- SERI‐NTU Advanced Ocular Engineering (STANCE) Singapore Singapore
| | - Thu‐Thao Le
- Academic Clinical Program Duke‐NUS Medical School National University of Singapore Singapore Singapore
- National Heart Research Institute SingaporeNational Heart Centre Singapore Singapore Singapore
| | - Yin Ci Sim
- Singapore Eye Research InstituteSingapore National Eye Centre Singapore Singapore
| | - Hui Yi Chye
- Singapore Eye Research InstituteSingapore National Eye Centre Singapore Singapore
| | - Bingyao Tan
- Singapore Eye Research InstituteSingapore National Eye Centre Singapore Singapore
- SERI‐NTU Advanced Ocular Engineering (STANCE) Singapore Singapore
- School of Chemical and Biomedical Engineering Nanyang Technological University Singapore
| | - Xinwen Yao
- Singapore Eye Research InstituteSingapore National Eye Centre Singapore Singapore
- SERI‐NTU Advanced Ocular Engineering (STANCE) Singapore Singapore
- School of Chemical and Biomedical Engineering Nanyang Technological University Singapore
| | - Damon Wong
- Singapore Eye Research InstituteSingapore National Eye Centre Singapore Singapore
- SERI‐NTU Advanced Ocular Engineering (STANCE) Singapore Singapore
- School of Chemical and Biomedical Engineering Nanyang Technological University Singapore
| | - Briana W. Y. Ang
- National Heart Research Institute SingaporeNational Heart Centre Singapore Singapore Singapore
| | - Desiree‐Faye Toh
- National Heart Research Institute SingaporeNational Heart Centre Singapore Singapore Singapore
| | - Huishan Lim
- National Heart Research Institute SingaporeNational Heart Centre Singapore Singapore Singapore
| | - Jennifer A. Bryant
- National Heart Research Institute SingaporeNational Heart Centre Singapore Singapore Singapore
| | - Tien Yin Wong
- Singapore Eye Research InstituteSingapore National Eye Centre Singapore Singapore
- Academic Clinical Program Duke‐NUS Medical School National University of Singapore Singapore Singapore
| | - Calvin Woon Loong Chin
- Academic Clinical Program Duke‐NUS Medical School National University of Singapore Singapore Singapore
- National Heart Research Institute SingaporeNational Heart Centre Singapore Singapore Singapore
| | - Leopold Schmetterer
- Singapore Eye Research InstituteSingapore National Eye Centre Singapore Singapore
- Academic Clinical Program Duke‐NUS Medical School National University of Singapore Singapore Singapore
- SERI‐NTU Advanced Ocular Engineering (STANCE) Singapore Singapore
- School of Chemical and Biomedical Engineering Nanyang Technological University Singapore
- Department of Clinical Pharmacology Medical University Vienna Vienna Austria
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20
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Abstract
ABSTRACT Structural and functional alterations in the microcirculation by systemic hypertension can cause significant organ damage at the eye, heart, brain, and kidneys. As the retina is the only tissue in the body that allows direct imaging of small vessels, the relationship of hypertensive retinopathy signs with development of disease states in other organs have been extensively studied; large-scale epidemiological studies using fundus photography and advanced semi-automated analysis software have reported the association of retinopathy signs with hypertensive end-organ damage includes the following: stroke, dementia, and coronary heart disease. Although yielding much useful information, the vessels assessed from fundus photographs remain limited to the larger retinal arterioles and venules, and abnormalities observed may not be that of the earliest changes. Newer imaging modalities such as optical coherence tomography angiography and adaptive optics technology, which allow a greater precision in the structural quantification of retinal vessels, including capillaries, may facilitate the assessment and management of these patients. The advent of deep learning technology has also augmented the utility of fundus photographs to help create diagnostic and risk stratification systems. Particularly, deep learning systems have been shown in several large studies to be able to predict multiple cardiovascular risk factors, major adverse cardiovascular events within 5 years, and presence of coronary artery calcium, from fundus photographs alone. In the future, combining deep learning systems with the imaging precision offered by optical coherence tomography angiography and adaptive optics could pave way for systems that are able to predict adverse clinical outcomes even more accurately.
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Affiliation(s)
- Wilson Tan
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore
| | - Xinwen Yao
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore
| | - Thu-Thao Le
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore
- Ophthalmology and Visual Sciences Academic Clinical Program, Duke-National University of Singapore Medical School, Singapore
| | - Bingyao Tan
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore
| | - Leopold Schmetterer
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore
- Ophthalmology and Visual Sciences Academic Clinical Program, Duke-National University of Singapore Medical School, Singapore
- Department of Clinical Pharmacology, Medical University of Vienna, Austria
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Austria
- Institute of Molecular and Clinical Ophthalmology, Basel, Switzerland
| | - Jacqueline Chua
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Ophthalmology and Visual Sciences Academic Clinical Program, Duke-National University of Singapore Medical School, Singapore
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Guo C, Li M, Chen Y, Xu X, Liu C, Chu J, Yao X. Seed bulb size influences the effects of exogenous brassinolide on yield and quality of Pinellia ternata. Plant Biol (Stuttg) 2022; 24:117-126. [PMID: 34693612 DOI: 10.1111/plb.13314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 06/15/2021] [Indexed: 06/13/2023]
Abstract
In recent years, natural Pinellia ternata populations of have gradually been exhausted, while the cultivated yield has been limited due to lack of research and uncertain climate condition. Therefore, it is necessary to explore methods of improving yield and quality in P. ternata using brassinolide (BR) treatments and choice of a suitable seed bulb size. This article reports the effects of BR and two seed bulb sizes (diameter: 0.5-1.0 cm and 1.0-1.5 cm) on active and nutrient components and antioxidant activity in P. ternata. The experiment included six levels of BR (0, 0.05, 0.10, 0.50, 1.00 and 2.00 mg l-1 ). The tuber yield of the two seed bulb sizes and bulbil yield of small seed bulbs increased 5.67%, 22.66% and 69.23% by day 105 after 0.50 mg l-1 BR treatment, compared with the control. On day 105, only 0.05 mg l-1 BR increased scores in principal components analysis (PCA) in tubers of small seed bulbs by 167.29%, and 0.05 and 0.50 mg l-1 BR increased PCA score in bulbils of large seed bulbs by 145.66% and 252.97%, respectively, compared with the control. Significant BR × seed bulb size interactions were found on yield and quality of P. ternata. The results indicate that BR effects on yield and quality of tubers and bulbils of P. ternata are not only related to BR concentration but also to seed bulb size.
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Affiliation(s)
- C Guo
- College of Life Sciences, Hebei University, Baoding, China
| | - M Li
- College of Life Sciences, Hebei University, Baoding, China
| | - Y Chen
- College of Life Sciences, Hebei University, Baoding, China
| | - X Xu
- College of Life Sciences, Hebei University, Baoding, China
| | - C Liu
- College of Life Sciences, Hebei University, Baoding, China
- Institute of Life Sciences and Green Development, Hebei University, Baoding, China
| | - J Chu
- College of Life Sciences, Hebei University, Baoding, China
- Institute of Life Sciences and Green Development, Hebei University, Baoding, China
| | - X Yao
- College of Life Sciences, Hebei University, Baoding, China
- Institute of Life Sciences and Green Development, Hebei University, Baoding, China
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22
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Yao X, Lan Y, Liao L, Huang Y, Yu S, Ye S, Yang M. Effects of nitrogen supply rate on photosynthesis, nitrogen uptake and growth of seedlings in a Eucalyptus/Dalbergia odorifera intercropping system. Plant Biol (Stuttg) 2022; 24:192-204. [PMID: 34569130 DOI: 10.1111/plb.13341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
The introduction of N2 -fixing species into a Eucalyptus plantation resulted in a successful planting system. It is essential to understand the contribution of nitrogen (N) competition and photosynthetic efficiency to plant dry matter yield to shed more light on the growth mechanism of the Eucalyptus/legume system. We compared N competition, photosynthesis and dry matter yield of Eucalyptus urophylla × E. grandis and the N2 -fixing tree species Dalbergia odorifera in intercropping and monoculture systems under different N levels. The photosynthesis of E. urophylla × E. grandis was improved, while that of D. odorifera was inhibited in the intercropping system. Intercropped E. urophylla × E. grandis increased the N utilization and the dry matter yield by 6.57-48.46% and 7.59-97.26%, and decreased those of D. odorifera by 10.21-30.33% and 0.48-13.19%, respectively. Furthermore, N application enhanced the competitive ability of E. urophylla × E. grandis relative to D. odorifera and changed the N contents and chlorophyll synthesis to optimize the photosynthetic structure of both species. Our results reveal Eucalyptus for photosynthesis, N absorption and increasing the growth benefit from the introduction of N2 -fixing species, which hence can be considered to be an effective sustainable management option of Eucalyptus plantations.
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Affiliation(s)
- X Yao
- College of Forestry, Guangxi University, Nanning, Guangxi, China
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, Guangdong, China
| | - Y Lan
- College of Forestry, Guangxi University, Nanning, Guangxi, China
| | - L Liao
- College of Forestry, Guangxi University, Nanning, Guangxi, China
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, Guangdong, China
| | - Y Huang
- College of Forestry, Guangxi University, Nanning, Guangxi, China
| | - S Yu
- College of Forestry, Guangxi University, Nanning, Guangxi, China
| | - S Ye
- College of Forestry, Guangxi University, Nanning, Guangxi, China
| | - M Yang
- College of Forestry, Guangxi University, Nanning, Guangxi, China
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23
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Tan W, Yao X, Le TT, Tan ACS, Cheung CY, Chin CWL, Schmetterer L, Chua J. The Application of Optical Coherence Tomography Angiography in Systemic Hypertension: A Meta-Analysis. Front Med (Lausanne) 2021; 8:778330. [PMID: 34859021 PMCID: PMC8630630 DOI: 10.3389/fmed.2021.778330] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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: 09/16/2021] [Accepted: 10/20/2021] [Indexed: 01/05/2023] Open
Abstract
Objective: Multiple studies have compared various optical coherence tomography angiography (OCTA) parameters in participants with systemic hypertension vs. controls and have presented discordant findings. We conducted a meta-analysis to pool together data from different studies to generate an overall effect size and find out whether OCTA parameter(s) significantly differed in participants with systemic hypertension as compared to controls. Methods: We conducted a literature search through a search of electronic databases to identify studies before 19 June 2021, which compared OCTA parameters in non-diabetic participants with systemic hypertension vs. controls. If the OCTA parameter had a minimum number of 3 studies that analyzed it, the mean difference between participants with systemic hypertension and controls were analyzed using a random-effects model. Results: We identified 11 eligible studies. At the macula, 9 studies analyzed vessel density at the superficial capillary plexus (SVD), 7 analyzed vessel density at the deep capillary plexus (DVD), and 6 analyzed the area of the superficial foveal avascular zone (FAZ). Participants with systemic hypertension had significantly lower SVD (standardized mean difference [SMD], -0.50 [-0.70, -0.30], P < 0.00001, I 2 = 63%), lower DVD (SMD, -0.38 [-0.64, -0.13], P = 0.004, I 2 = 67%) and larger superficial FAZ (SMD, 0.32 [0.04, 0.61], P = 0.020, I 2 = 77%). Conclusion: The eyes of people with systemic hypertension have robustly lower superficial and deep vascular densities at the macula when compared to control eyes. Our results suggest that OCTA can provide information about pre-clinical microvascular changes from systemic hypertension.
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Affiliation(s)
- Wilson Tan
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore.,Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore, Singapore
| | - Xinwen Yao
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore.,School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore.,SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore
| | - Thu-Thao Le
- National Heart Centre Singapore, National Heart Research Institute Singapore, Singapore, Singapore.,Ophthalmology and Visual Sciences Academic Clinical Program, Duke-National University of Singapore Medical School, Singapore, Singapore
| | - Anna C S Tan
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore.,Ophthalmology and Visual Sciences Academic Clinical Program, Duke-National University of Singapore Medical School, Singapore, Singapore
| | - Carol Y Cheung
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Calvin Woon Loong Chin
- National Heart Centre Singapore, National Heart Research Institute Singapore, Singapore, Singapore.,Ophthalmology and Visual Sciences Academic Clinical Program, Duke-National University of Singapore Medical School, Singapore, Singapore
| | - Leopold Schmetterer
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore.,School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore.,SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore.,Ophthalmology and Visual Sciences Academic Clinical Program, Duke-National University of Singapore Medical School, Singapore, Singapore.,Department of Clinical Pharmacology, Medical University of Vienna, Vienna, Austria.,Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria.,Institute of Molecular and Clinical Ophthalmology, Basel, Switzerland
| | - Jacqueline Chua
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore.,Ophthalmology and Visual Sciences Academic Clinical Program, Duke-National University of Singapore Medical School, Singapore, Singapore
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24
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Wong D, Chua J, Tan B, Yao X, Chong R, Sng CCA, Husain R, Aung T, Garway-Heath D, Schmetterer L. Combining OCT and OCTA for Focal Structure-Function Modeling in Early Primary Open-Angle Glaucoma. Invest Ophthalmol Vis Sci 2021; 62:8. [PMID: 34878500 PMCID: PMC8662568 DOI: 10.1167/iovs.62.15.8] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose To investigate modeling of the focal visual field (VF) loss by combining structural measurements and vascular measurements in eyes with early primary open-angle glaucoma (POAG). Methods In this cross-sectional study, subjects with early glaucoma (VF mean deviation, ≥−6 dB) underwent optical coherence tomography (OCT) imaging, optical coherence tomography angiography (OCTA) imaging, and Humphrey 24-2 VF tests. Capillary perfusion densities (CPDs) were calculated after the removal of large vessels in the OCTA images. Focal associations between VF losses at the individual VF test locations, circumpapillary retinal nerve fiber layer (RNFL) thickness measurements from OCT, and CPDs were determined using nerve fiber trajectory tracings. Linear mixed models were used to model focal VF losses at each VF test location. Results Ninety-seven eyes with early POAG (VF mean deviation, −2.47 ± 1.64 dB) of 71 subjects were included. Focal VF modeling using a combined RNFL–CPD approach resulted in a median adjusted R2 value of 0.30 (interquartile range [IQR], 0.13–0.55), whereas the RNFL-only and CPD-only approaches resulted in median values of 0.22 (IQR, 0.10–0.51) and 0.26 (IQR, 0.10–0.52), respectively. Seventeen VF locations with the combined approach had an adjusted R2 value greater than 0.50. Likelihood testing at each VF test location showed that the combined approach performed significantly better at the superior nasal VF regions of the eyes compared with the univariate approaches. Conclusions Modeling of focal VF losses showed improvements when structural thickness and vascular parameters were included in tandem. Evaluation of VF defects in early glaucoma may benefit from considering both RNFL and OCTA characteristics.
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Affiliation(s)
- Damon Wong
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore.,School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore.,Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Jacqueline Chua
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore.,Academic Clinical Program, Duke-NUS Medical School, Singapore
| | - Bingyao Tan
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore.,School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore.,Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Xinwen Yao
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore.,School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore.,Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Rachel Chong
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Chelvin C A Sng
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore.,Department of Ophthalmology, National University Hospital, Singapore
| | - Rahat Husain
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Tin Aung
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore.,Academic Clinical Program, Duke-NUS Medical School, Singapore.,Department of Ophthalmology, National University Hospital, Singapore.,Department of Ophthalmology, National University Hospital, Singapore
| | - David Garway-Heath
- NIHR Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust, London, United Kingdom.,Institute of Ophthalmology, University College, London, United Kingdom
| | - Leopold Schmetterer
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore.,School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore.,Singapore Eye Research Institute, Singapore National Eye Centre, Singapore.,Department of Ophthalmology, National University Hospital, Singapore.,Department of Clinical Pharmacology, Medical University of Vienna, Vienna, Austria.,Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria.,Institute of Molecular and Clinical Ophthalmology, Basel, Switzerland
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25
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Zheng Z, Yao X. Multiparametric MRI-based radiomics signature for preoperative estimation of basal and luminal features in bladder cancer. EUR UROL SUPPL 2021. [DOI: 10.1016/s2666-1683(21)03223-7] [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: 11/28/2022] Open
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26
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Liu M, Wu J, Yao X, Yuan K, Zhang D, Tang B, Yin J. Feasibility of Single Non-Coplanar Models for Stereotactic Radiosurgery of Brain Metastases. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1489] [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: 11/26/2022]
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27
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Dickow J, Van Houten H, Sangaralingham L, Friedman P, Packer D, Kirchhof P, Noseworthy P, Yao X. Generalizability of the EAST-AFNET 4 trial: assessing outcomes of early rhythm-control therapy in patients with atrial fibrillation. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0441] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The Early Treatment of Atrial Fibrillation for Stroke Prevention Trial (EAST-AFNET 4) demonstrated clinical benefit of early rhythm-control therapy in patients with recently diagnosed atrial fibrillation (AF) and concomitant cardiovascular conditions (CHA2DS2-VASc-Score ≥2) compared to the current practice of limited rhythm-control therapy to improve AF-related symptoms.
Purpose
To evaluate the generalizability of the EAST-AFNET 4 trial in routine practice, we assessed the proportion of patients who would have met trial eligibility and examined the association between early rhythm-control and clinical outcomes.
Methods
Using a large US administrative database, we identified 109,739 patients with newly diagnosed AF from July 28th, 2011 to December 30th, 2016, the enrollment period of the EAST-AFNET 4 trial. Eligibility for trial inclusion was assessed based on inclusion criteria. Eligible patients were classified as either receiving early rhythm-control, i.e AF ablation and/or any antiarrhythmic drug therapy, within the first year after AF diagnosis (N=27,106) or patients not receiving early rhythm-control (N=82,633). The date 12 months after the first AF diagnosis was defined as the index date and the start of the follow up period. Propensity score overlap weighting was used to balance patients on 90 baseline characteristics. Cox proportional hazards regression was used to compare early rhythm-control with no early rhythm-control for the primary outcome of a composite end point of all-cause mortality, stroke, or hospitalization with the diagnoses heart failure or myocardial infarction.
Results
Eligible for the trial were 72.9% (82,633/109,739) of all patients with newly diagnosed AF. Early rhythm-control therapy was associated with a reduction in the composite end point in the overall cohort of patients (hazard ratio [HR] 0.85; 95% confidence interval [CI] 0.75–0.97; P=0.015) with largely consistent treatment effects between patients eligible or ineligible for the trial. The reduction of stroke risk associated with early rhythm-control therapy was found in the overall cohort (HR 0.66; 95% CI 0.47–0.93; P=0.017) and in the trial-eligible cohort (HR 0.67; 95% CI 0.45–0.98; P=0.041).
Conclusion
In a large health care data set, the majority of patients with newly diagnosed AF were eligible for the trial. Early rhythm-control therapy was associated with a 15% reduction in the composite end point of all-cause mortality, stroke, or hospitalization with the diagnoses heart failure or myocardial infarction, with the greatest benefit in the reduction of stroke risk. The treatment effect was consistent between patients eligible or ineligible for the trial. Patients in routine practice had higher rates of adverse outcomes than the trial, but the relative risk reduction with early rhythm-control therapy was similar. These data demonstrate the potential of early rhythm-control therapy to reduce outcomes in patients with AF.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): German Heart Foundation (Mit Fördermitteln der Deutschen Herzstiftung e.V.)
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Affiliation(s)
- J Dickow
- University Heart & Vascular Center Hamburg, Hamburg, Germany
| | | | | | - P.A Friedman
- Mayo Clinic, Rochester, United States of America
| | - D.L Packer
- Mayo Clinic, Rochester, United States of America
| | - P Kirchhof
- University Heart & Vascular Center Hamburg, Hamburg, Germany
| | | | - X Yao
- Mayo Clinic, Rochester, United States of America
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28
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Tan B, McNabb RP, Zheng F, Sim YC, Yao X, Chua J, Ang M, Hoang QV, Kuo AN, Schmetterer L. Ultrawide field, distortion-corrected ocular shape estimation with MHz optical coherence tomography (OCT). Biomed Opt Express 2021; 12:5770-5781. [PMID: 34692214 PMCID: PMC8515957 DOI: 10.1364/boe.428430] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 07/08/2021] [Accepted: 07/08/2021] [Indexed: 05/06/2023]
Abstract
Ocular deformation may be associated with biomechanical alterations in the structures of the eye, especially the cornea and sclera in conditions such as keratoconus, congenital glaucoma, and pathological myopia. Here, we propose a method to estimate ocular shape using an ultra-wide field MHz swept-source optical coherence tomography (SS-OCT) with a Fourier Domain Mode-Locked (FDML) laser and distortion correction of the images. The ocular biometrics for distortion correction was collected by an IOLMaster 700, and localized Gaussian curvature was proposed to quantify the ocular curvature covering a field-of-view up to 65°×62°. We achieved repeatable curvature shape measurements (intraclass coefficient = 0.88 ± 0.06) and demonstrated its applicability in a pilot study with individuals (N = 11) with various degrees of myopia.
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Affiliation(s)
- Bingyao Tan
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
- Authors contributed equally to the study
| | - Ryan P McNabb
- Duke University Medical Center, Durham, NC 27607, USA
- Authors contributed equally to the study
| | - Feihui Zheng
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
| | - Yin Ci Sim
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
| | - Xinwen Yao
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
| | - Jacqueline Chua
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- Department of Ophthalmology, Duke-NUS Medical School, Singapore
| | - Marcus Ang
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- Department of Ophthalmology, Duke-NUS Medical School, Singapore
| | - Quan V Hoang
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- Department of Ophthalmology, Duke-NUS Medical School, Singapore
- Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Ophthalmology, Edward S. Harkness Eye Institute, Columbia College of Physicians and Surgeons, New York, NY 10032, USA
| | - Anthony N Kuo
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- Duke University Medical Center, Durham, NC 27607, USA
| | - Leopold Schmetterer
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
- Department of Ophthalmology, Duke-NUS Medical School, Singapore
- Department of Clinical Pharmacology, Medical University of Vienna, Vienna, Austria
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria
- Institute of Molecular and Clinical Ophthalmology, Basel, Switzerland
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29
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Haider MA, Brown J, Yao X, Chin J, Perlis N, Schieda N, Loblaw A. Multiparametric Magnetic Resonance Imaging in the Diagnosis of Clinically Significant Prostate Cancer: an Updated Systematic Review. Clin Oncol (R Coll Radiol) 2021; 33:e599-e612. [PMID: 34400038 DOI: 10.1016/j.clon.2021.07.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 07/05/2021] [Accepted: 07/27/2021] [Indexed: 12/20/2022]
Abstract
There has been growing utilisation of multiparametric magnetic resonance imaging (MPMRI) as a non-invasive tool to diagnose and localise clinically significant prostate cancer (CSPCa). This updated systematic review examines the use of MPMRI in patients with an elevated risk of CSPCa who have had a prior negative transrectal ultrasound systematic biopsy (TRUS-SB) and who were biopsy naïve. MEDLINE, EMBASE and the Cochrane Database of Systematic Reviews were searched for existing systematic reviews published up to September 2020. The literature search of the electronic databases combined disease-specific terms (prostate cancer, prostate carcinoma, etc.) and treatment-specific terms (magnetic resonance, etc.). Studies were included if they were randomised controlled trials (RCTs) comparing MPMRI to template transperineal mapping biopsy (TPMB) or to TRUS-SB. Thirty-six RCTs were eligible. For biopsy-naïve men, accuracy of diagnosis of CSPCa showed sensitivities from 87 to 96% and specificities ranging from 29 to 45%. Meta-analyses for CSPCa showed increased detection favouring MPMRI-targeted biopsy over TRUS-SB by 3% (95% confidence interval 0-7%, P = 0.03) and decreased detection of clinically insignificant prostate cancer (CISPCa) favouring MPMRI by 8% (95% confidence interval -11 to 5%, P < 0.00001). Accuracy of MPMRI for men with prior negative biopsy showed sensitivities of 78-100% and specificities of 30-100%. Meta-analyses comparing MPMRI to TRUS-SB showed increased detection of 5% (95% confidence interval 3-7%, P < 0.0001) with a reduction of CISPCa detection of 7% (95% confidence interval 4-9%, P < 0.00001). The growing acceptance of MPMRI utilisation internationally and the recent publication of several RCTs regarding MPMRI in reducing CISPCa detection rates, particularly in biopsy-naïve men, without loss of sensitivity for CSPCa necessitates the synthesis of updated evidence examining MPMRI in the diagnosis of CSPCa.
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Affiliation(s)
- M A Haider
- Sinai Health System and University of Toronto, Joint Department of Medical Imaging, Toronto, ON, Canada
| | - J Brown
- Program in Evidence-based Care, Ontario Health (Cancer Care Ontario), McMaster University, Hamilton, ON, Canada
| | - X Yao
- Program in Evidence-based Care, Ontario Health (Cancer Care Ontario), McMaster University, Hamilton, ON, Canada; Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, ON, Canada.
| | - J Chin
- London Health Sciences Centre, Victoria Hospital, London, ON, Canada
| | - N Perlis
- Cancer Clinical Research Unit, Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - N Schieda
- Department of Radiology, University of Ottawa, Ottawa, ON, Canada
| | - A Loblaw
- Sunnybrook Health Sciences Centre, Toronto, ON, Canada
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30
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Zhao Y, Wu L, Lu Q, Gao X, Zhu X, Yao X, Li L, Li W, Ding Y, Song Z, Liu L, Dang N, Zhang C, Liu X, Gu J, Wang J, Geng S, Liu Q, Guo Y, Dong L, Su H, Bai L, O'Malley JT, Luo J, Laws E, Mannent L, Ruddy M, Amin N, Bansal A, Ota T, Wang M, Zhang J. The efficacy and safety of dupilumab in Chinese patients with moderate-to-severe atopic dermatitis: a randomized, double-blind, placebo-controlled study. Br J Dermatol 2021; 186:633-641. [PMID: 34358343 PMCID: PMC9298048 DOI: 10.1111/bjd.20690] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/05/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Dupilumab is an antibody against interleukin 4 receptor α, used in treating atopic dermatitis (AD). OBJECTIVES To evaluate the efficacy and safety of dupilumab in adult Chinese patients with moderate-to-severe AD. METHODS In this randomized, double-blind, placebo-controlled, parallel-group, phase III study, conducted between December 2018 and February 2020, patients with AD received dupilumab (300mg) or placebo once every 2 weeks for 16 weeks, and were followed up for 12 weeks. The primary efficacy endpoint was the proportion of patients with both Investigator's Global Assessment (IGA) score of 0-1 and a reduction from baseline of ≥2 points at week 16. RESULTS Overall, 165 patients (mean age: 30.6 years; 71.5% male) were randomized: 82 to dupilumab and 83 to placebo. At week 16, 26.8% of patients in the dupilumab group and 4.8% of patients in the placebo group achieved the primary endpoint (difference, 22.0%; 95% confidence interval [CI], 11.37-32.65%; p<0.0001). Compared with placebo, higher proportions of patients in the dupilumab group achieved ≥75% reduction in the Eczema Area and Severity Index score (57.3% vs 14.5%; difference, 42.9%; 95% CI, 29.75-55.97%; p<0.0001) and had ≥3-point (52.4% vs 9.6%; difference, 42.8%; 95% CI, 30.26-55.34%; p<0.0001) and ≥4-point (39.0% vs 4.8%; difference, 34.2%; 95% CI, 22.69-45.72%; p<0.0001) reductions in weekly average daily peak daily pruritus numerical rating scale scores. The incidence of TEAEs during the treatment period was similar in the two groups. The incidence of conjunctivitis, allergic conjunctivitis, and injection site reaction was higher in the dupilumab group than in the placebo group. CONCLUSIONS In adult Chinese patients, dupilumab was effective in improving the signs and symptoms of AD and demonstrated a favorable safety profile.
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Affiliation(s)
- Y Zhao
- Peking University People's Hospital, Beijing, China
| | - L Wu
- Hangzhou First People's Hospital, Hangzhou, China
| | - Q Lu
- The Second Xiangya Hospital of Central South University, Changsha, China
| | - X Gao
- The First Hospital of China Medical University, Shenyang, China
| | - X Zhu
- Wuxi Second People's Hospital, Jiangsu, China
| | - X Yao
- Hospital for skin diseases, Institute of Dermatology, Chinese Academy of medical sciences, Nanjing, China
| | - L Li
- Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - W Li
- Huashan Hospital, Fudan University, Shanghai, China
| | - Y Ding
- Shanghai Skin Disease Hospital, Shanghai, China
| | - Z Song
- The Southwest Hospital of AMU, Chongqing, China
| | - L Liu
- Peking University First Hospital, Beijing, China
| | - N Dang
- Jinan Central Hospital, Jinan, China
| | - C Zhang
- Peking University Third Hospital, Beijing, China
| | - X Liu
- University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - J Gu
- Changhai Hospital of Shanghai, Shanghai, China
| | - J Wang
- Ningbo No.2 Hospital, Ningbo, China
| | - S Geng
- The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Q Liu
- Tianjin Medical University General Hospital, Tianjin, China
| | - Y Guo
- Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - L Dong
- Research & Development, Sanofi, Shanghai, China
| | - H Su
- Research & Development, Sanofi, Shanghai, China
| | - L Bai
- Research & Development, Sanofi, Shanghai, China
| | | | - J Luo
- Research & Development, Sanofi, Indianapolis, USA
| | - E Laws
- Research & Development, Sanofi, Bridgewater, USA
| | - L Mannent
- Research & Development, Sanofi, Paris, France
| | - M Ruddy
- Research & Development, Regeneron, New York, USA
| | - N Amin
- Research & Development, Regeneron, New York, USA
| | - A Bansal
- Research & Development, Regeneron, New York, USA
| | - T Ota
- Research & Development, Regeneron, New York, USA
| | - M Wang
- Medical, Sanofi China, Shanghai, China
| | - J Zhang
- Peking University People's Hospital, Beijing, China
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Zhao Y, Tang B, Li J, Wang P, Liao X, Yao X, Xin X, Orlandini L. PO-1902 Treating left-sided breast patients in breath hold using a real time surface tracking system. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)08353-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Saxena A, Yao X, Wong D, Chua J, Ang M, Hoang QV, Agrawal R, Girard M, Cheung G, Schmetterer L, Tan B. Framework for quantitative three-dimensional choroidal vasculature analysis using optical coherence tomography. Biomed Opt Express 2021; 12:4982-4996. [PMID: 34513237 PMCID: PMC8407849 DOI: 10.1364/boe.426093] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 05/20/2021] [Accepted: 05/27/2021] [Indexed: 05/25/2023]
Abstract
Choroidal vasculature plays an important role in the pathogenesis of retinal diseases, such as myopic maculopathy, age-related macular degeneration, diabetic retinopathy, central serous chorioretinopathy, and ocular inflammatory diseases. Current optical coherence tomography (OCT) technology provides three-dimensional visualization of the choroidal angioarchitecture; however, quantitative measures remain challenging. Here, we propose and validate a framework to segment and quantify the choroidal vasculature from a prototype swept-source OCT (PLEX Elite 9000, Carl Zeiss Meditec, USA) using a 3×3 mm scan protocol centered on the macula. Enface images referenced from the retinal pigment epithelium were reconstructed from the volumetric data. The boundaries of the choroidal volume were automatically identified by tracking the choroidal vessel feature structure over the depth, and a selective sliding window was applied for segmenting the vessels adaptively from attenuation-corrected enface images. We achieved a segmentation accuracy of 96% ± 1% as compared with manual annotation, and a dice coefficient of 0.83 ± 0.04 for repeatability. Using this framework on both control (0.00 D to -2.00 D) and highly myopic (-8.00 D to -11.00 D) eyes, we report a decrease in choroidal vessel volume (p<0.001) in eyes with high myopia.
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Affiliation(s)
- Ashish Saxena
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore
| | - Xinwen Yao
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore
- NTU Institute for Health Technologies, Singapore
| | - Damon Wong
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore
- NTU Institute for Health Technologies, Singapore
| | - Jacqueline Chua
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore
- Department of Ophthalmology, Duke-NUS Medical School, Singapore
| | - Marcus Ang
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Department of Ophthalmology, Duke-NUS Medical School, Singapore
| | - Quan V. Hoang
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Department of Ophthalmology, Duke-NUS Medical School, Singapore
- Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Ophthalmology, Columbia University College of Physicians and Surgeons, 630 W 168th St, New York, NY 10032, USA
| | - Rupesh Agrawal
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Department of Ophthalmology, Duke-NUS Medical School, Singapore
- Tan Tock Seng Hospital, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Michael Girard
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Department of Ophthalmology, Duke-NUS Medical School, Singapore
- Institute of Molecular and Clinical Ophthalmology, 4031 Basel, Switzerland
| | - Gemmy Cheung
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- NTU Institute for Health Technologies, Singapore
| | - Leopold Schmetterer
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore
- NTU Institute for Health Technologies, Singapore
- Department of Ophthalmology, Duke-NUS Medical School, Singapore
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
- Department of Clinical Pharmacology, Medical University of Vienna, Austria
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Austria
- Institute of Molecular and Clinical Ophthalmology, 4031 Basel, Switzerland
| | - Bingyao Tan
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore
- NTU Institute for Health Technologies, Singapore
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33
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Huebinger RM, Do DH, Carlson DL, Yao X, Stones DH, De Souza Santos M, Vaz DP, Keen E, Wolf SE, Minei JP, Francis KP, Orth K, Krachler AM. Bacterial adhesion inhibitor prevents infection in a rodent surgical incision model. Virulence 2021; 11:695-706. [PMID: 32490711 PMCID: PMC7550027 DOI: 10.1080/21505594.2020.1772652] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Surgical site infection risk continues to increase due to lack of efficacy in current standard of care drugs. New methods to treat or prevent antibiotic-resistant bacterial infections are needed. Multivalent Adhesion Molecules (MAM) are bacterial adhesins required for virulence. We developed a bacterial adhesion inhibitor using recombinant MAM fragment bound to polymer scaffold, mimicking MAM7 display on the bacterial surface. Here, we test MAM7 inhibitor efficacy to prevent Gram-positive and Gram-negative infections. Using a rodent model of surgical infection, incision sites were infected with antibiotic-resistant bioluminescent strains of Staphylococcus aureus or Pseudomonas aeruginosa. Infections were treated with MAM7 inhibitor or control suspension. Bacterial abundance was quantified for nine days post infection. Inflammatory responses and histology were characterized using fixed tissue sections. MAM7 inhibitor treatment decreased burden of S. aureus and P. aeruginosa below detection threshold. Bacterial load of groups treated with control were significantly higher than MAM7 inhibitor-treated groups. Treatment with inhibitor reduced colonization of clinically-relevant pathogens in an in vivo model of surgical infection. Use of MAM7 inhibitor to block initial adhesion of bacteria to tissue in surgical incisions may reduce infection rates, presenting a strategy to mitigate overuse of antibiotics to prevent surgical site infections.
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Affiliation(s)
- R M Huebinger
- Department of Surgery, Division of General and Acute Care Surgery, University of Texas Southwestern Medical Center , Dallas, TX, USA
| | - D H Do
- Department of Surgery, Division of General and Acute Care Surgery, University of Texas Southwestern Medical Center , Dallas, TX, USA
| | - D L Carlson
- Department of Surgery, Division of General and Acute Care Surgery, University of Texas Southwestern Medical Center , Dallas, TX, USA
| | - X Yao
- Department of Surgery, Division of General and Acute Care Surgery, University of Texas Southwestern Medical Center , Dallas, TX, USA
| | - D H Stones
- School of Biosciences, Institute of Microbiology and Infection, University of Birmingham , Birmingham, UK.,University of Gloucestershire, School of Natural and Social Sciences , Cheltenham, UK
| | - M De Souza Santos
- Department of Molecular Biology, University of Texas Southwestern Medical Center , Dallas, TX, USA
| | - D P Vaz
- Department of Microbiology and Molecular Genetics, University of Texas Health Science Center at Houston, McGovern Medical School , Houston, TX, USA
| | - E Keen
- School of Biosciences, Institute of Microbiology and Infection, University of Birmingham , Birmingham, UK
| | - S E Wolf
- Department of Surgery, Division of General and Acute Care Surgery, University of Texas Southwestern Medical Center , Dallas, TX, USA.,UTMB Department of Surgery, Shriners Hospitals for Children , Galveston, TX, USA
| | - J P Minei
- Department of Surgery, Division of General and Acute Care Surgery, University of Texas Southwestern Medical Center , Dallas, TX, USA
| | | | - K Orth
- Department of Molecular Biology, University of Texas Southwestern Medical Center , Dallas, TX, USA.,Department of Biochemistry, University of Texas Southwestern Medical Center , Dallas, TX, USA.,Howard Hughes Medical Institute, University of Texas Southwestern Medical Center , Dallas, TX, USA
| | - A M Krachler
- Department of Microbiology and Molecular Genetics, University of Texas Health Science Center at Houston, McGovern Medical School , Houston, TX, USA
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Zhu J, Li X, Zhang S, Liu J, Yao X, Zhao Q, Kou B, Han P, Wang X, Bai Y, Zheng Z, Xu C. Taraxasterol inhibits TGF-β1-induced epithelial-to-mesenchymal transition in papillary thyroid cancer cells through regulating the Wnt/β-catenin signaling. Hum Exp Toxicol 2021; 40:S87-S95. [PMID: 34219514 DOI: 10.1177/09603271211023792] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Taraxasterol (TAR) is a kind of active compound extracted from dandelion and its molecular structure resembles steroid hormones. Recently, TAR has been reported to show an anti-tumor activity. However, the specific role of TAR in papillary thyroid cancer (PTC) has not been clarified. In this study, we investigated the effect of TAR on PTC cell migration, invasion and epithelial-to-mesenchymal transition (EMT) induced by TGF-β1. PTC cells were exposed to TGF-β1 (5 ng/mL) and then treated with different concentrations of TAR. We found that TAR showed no obvious cytotoxicity below 10 μg/mL but notably reduced migration and invasion of TGF-β1-treated PTC cells. Moreover, TAR treatment decreased MMP-2 and MMP-9 levels, and obviously affected the expression of EMT markers. We also observed that Wnt3a and β-catenin levels were significantly increased in TGF-β1-treated PTC cells while TAR inhibited these effects in a concentration-dependent manner. Additionally, activation of the Wnt pathway by LiCl attenuated the suppressive effect of TAR on TGF-β1-induced migration, invasion and EMT in PTC cells. Taken together, we highlighted that TAR could significantly suppress TGF-β1-regulated migration and invasion by reversing the EMT process via the Wnt/β-catenin pathway, suggesting that TAR may be a potential anti-cancer agent for PTC treatment.
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Affiliation(s)
- J Zhu
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Department of General Surgery, Shaanxi Tumor Hospital, Xi'an, China
| | - X Li
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - S Zhang
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - J Liu
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - X Yao
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Q Zhao
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - B Kou
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - P Han
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - X Wang
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Y Bai
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Z Zheng
- The Third Ward of Department of General Surgery, Rizhao People's Hospital, Rizhao, China
| | - C Xu
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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Yao X, Tan B, Ho Y, Liu X, Wong D, Chua J, Wong TT, Perera S, Ang M, Werkmeister RM, Schmetterer L. Full circumferential morphological analysis of Schlemm's canal in human eyes using megahertz swept source OCT. Biomed Opt Express 2021; 12:3865-3877. [PMID: 34457385 PMCID: PMC8367246 DOI: 10.1364/boe.426218] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/03/2021] [Accepted: 05/05/2021] [Indexed: 05/16/2023]
Abstract
We performed full circumferential imaging of the Schlemm's canal (SC) of two human eyes using a Fourier domain mode-lock laser (FDML) based 1.66-MHz SS-OCT prototype at 1060 nm. Eight volumes with overlapping margins were acquired around the limbal area with customized raster scanning patterns designed to fully cover the SC while minimizing motion artifacts. The SC was segmented from the volumes using a semi-automated active contour segmentation algorithm, whose mean dice similarity coefficient was 0.76 compared to the manual segmentation results. We also reconstructed three-dimensional (3D) renderings of the 360° SC by stitching the segmented SCs from the volumetric datasets. Quantitative metrics of the full circumferential SC were provided, including the mean and standard deviation (SD) of the cross-sectional area (CSA), the maximum CSA, the minimum and maximum SC opening width, and the number of collector channels (CC) stemming from the SC.
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Affiliation(s)
- Xinwen Yao
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Bingyao Tan
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Yijie Ho
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Xinyu Liu
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Damon Wong
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Jacqueline Chua
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Academic Clinical Program, Duke-NUS Medical School, Singapore
| | - Tina T. Wong
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Academic Clinical Program, Duke-NUS Medical School, Singapore
| | - Shamira Perera
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Academic Clinical Program, Duke-NUS Medical School, Singapore
| | - Marcus Ang
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Academic Clinical Program, Duke-NUS Medical School, Singapore
| | - René M. Werkmeister
- Department of Clinical Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Leopold Schmetterer
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Academic Clinical Program, Duke-NUS Medical School, Singapore
- Department of Clinical Pharmacology, Medical University of Vienna, Vienna, Austria
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria
- Institute of Molecular and Clinical Ophthalmology, Basel, Switzerland
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36
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Wang B, Yao J, Yao X, Lao J, Liu D, Chen C, Lu Y. [Swertiamarin alleviates diabetic peripheral neuropathy in rats by suppressing NOXS/ ROS/NLRP3 signal pathway]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:937-941. [PMID: 34238748 PMCID: PMC8267977 DOI: 10.12122/j.issn.1673-4254.2021.06.18] [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: 03/18/2023]
Abstract
OBJECTIVE To observe the therapeutic effect of swertiamarin on diabetic peripheral neuropathy (DPN) in rats and explore the molecular mechanism in light of the NOXS/ROS/NLRP3 signal pathway. OBJECTIVE Thirty-two SD rats were randomly divided into control group, DPN model group (treated with saline), swertiamarin (5 mg/kg) treatment group and NOXS inhibitor (10 mL/kg DPI) treatment group. Rat models of DPN were established in the latter 3 groups by intraperitoneal injections of STZ, and the treatments were administered on days 1, 7 and 14 after modeling. Tactile hypersensitivity of the rats was evaluated 30 min after the treatment. The expressions of NOXS, ROS, NLRP3 and inflammatory factors in the spinal cord tissue were detected using ELISA, and the protein expressions of NOXS, ROS, and NLRP3 were also detected with Western blotting. OBJECTIVE Compared with those in the control group, the rats in DPN group showed significant hyperalgesia (P < 0.001), increased expressions of TNF-α (P < 0.001) and IL-6 (P < 0.001), decreased expressions of TGF-β (P < 0.001), and increased expressions of NOXS/ROS/NLRP3 signal pathway (P < 0.001). Compared with those in DPN model group, the rats with swertiamarin treatment showed improved hyperalgesia (P < 0.001), decreased expressions of TNF-α (P=0.03) and IL-6 (P=0.002), increased expressions of TGF-β (P=0.04), and decreased expressions of NOXS (P < 0.001), ROS (P < 0.001) and NLRP3 (P=0.002). Treatment with swertiamarin and the NOXS inhibitor produced similar effects on the expressions of the inflammatory factors in the rat models (P>0.05). OBJECTIVE DPN effectively relieves hyperalgesia in rat models of DPN by restoring the balance in the expressions of the inflammatory factors by suppressing NOXs/ROS/NLRP3 signaling pathway.
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Affiliation(s)
- B Wang
- Department of Anesthesiology, Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou 510130, China
| | - J Yao
- Department of Gastroenterology, Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510655, China
| | - X Yao
- Department of Anesthesiology, Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou 510130, China
| | - J Lao
- Department of Anesthesiology, Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou 510130, China
| | - D Liu
- Department of Anesthesiology, Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou 510130, China
| | - C Chen
- Department of Anesthesiology, Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou 510130, China
| | - Y Lu
- Department of Anesthesiology, Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou 510130, China
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Haoran L, Ye T, Yang X, Duan C, Yao X, Ye Z, Liang C. AhR activation attenuates calcium oxalate nephrocalcinosis-mediated kidney injury and crystals deposition by promoting M2 macrophage polarization. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00615-1] [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: 11/25/2022]
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38
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Huang J, Cai X, Yao X, Qian H, Zhang J, Kong W, Huang Y, Wu X, Chen Y, Xue W. Cognitive function after cardiopulmonary bypass and deep hypothermic circulatory arrest in the management of renal cell carcinoma with IVC tumor thrombus. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)01006-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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39
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Wong D, Chua J, Lin E, Tan B, Yao X, Chong R, Sng C, Lau A, Husain R, Aung T, Schmetterer L. Focal Structure-Function Relationships in Primary Open-Angle Glaucoma Using OCT and OCT-A Measurements. Invest Ophthalmol Vis Sci 2021; 61:33. [PMID: 33372979 PMCID: PMC7774057 DOI: 10.1167/iovs.61.14.33] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose To evaluate the focal structure-function associations among visual field (VF) loss, optical coherence tomography angiography (OCT-A) vascular measurements, and optical coherence tomography (OCT) structural measurements in glaucoma. Methods In this cross-sectional study, subjects underwent standard automated perimetry, OCT-based nerve fiber thickness measurements, and OCT-A imaging. Mappings of focal VF test locations with OCT and OCT-A measurements were defined using anatomically adjusted nerve fiber trajectories and were studied using multivariate mixed-effects analysis. Segmented regression analysis was used to determine the presence of breakpoints in the structure-function associations. Results The study included 119 eyes from 86 Chinese subjects with primary open-angle glaucoma (POAG). VF mean deviation was significantly associated with global capillary perfusion density (β = 0.13 ± 0.08) and global retinal nerve fiber layer thickness (β = 0.09 ± 0.02). Focal capillary density (FCD) was significantly associated with VF losses at 34 VF test locations (66.7% of 24-2 VF), with 24 of the 34 locations being within 20° of retinal eccentricity. Focal nerve layer (FNL) thickness was significantly associated with 16 VF test locations (31.4% of 24-2 VF; eight locations within 20° eccentricity). For VF test locations in the central 10° VF, VF losses below the breakpoint were significantly associated with FCD (slope, 0.89 ± 0.12, P < 0.001), but not with FNL thickness (slope, 0.57 ± 0.39, P = 0.15). Conclusions Focal capillary densities were significantly associated with a wider range of visual field losses and in a larger proportion of the visual field compared to nerve fiber thickness.
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Affiliation(s)
- Damon Wong
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore.,NTU Institute of Health Technologies, Singapore.,Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Jacqueline Chua
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore.,Academic Clinical Program, Duke-NUS Medical School, Singapore
| | - Emily Lin
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Bingyao Tan
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore.,NTU Institute of Health Technologies, Singapore.,Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Xinwen Yao
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore.,NTU Institute of Health Technologies, Singapore.,Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Rachel Chong
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Chelvin Sng
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore.,Ophthalmology Department, National University Hospital, Singapore
| | - Amanda Lau
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Rahat Husain
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Tin Aung
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore.,Academic Clinical Program, Duke-NUS Medical School, Singapore.,Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Leopold Schmetterer
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore.,Singapore Eye Research Institute, Singapore National Eye Centre, Singapore.,School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore.,Department of Clinical Pharmacology, Medical University of Vienna, Vienna, Austria.,Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria.,Institute of Molecular and Clinical Ophthalmology, Basel, Switzerland
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40
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41
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Paz-Ares L, Spigel D, Chen Y, Jove M, Juan-Vidal O, Rich P, Hayes T, Gutiérrez Calderón V, Caro R, Navarro A, Dowlati A, Zhang B, Moore Y, Yao X, Kokhreidze J, Ponce S, Bunn P. FP10.04 RESILIENT Part 1: Safety and Efficacy of Second-Line Liposomal Irinotecan in Patients with Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.126] [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: 10/21/2022]
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42
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Zhou H, Yao X, Tang SH, Xie M, Feng ZS, Qin JP. [Clinical study of transjugular intrahepatic portosystemic shunt with Viatorr stent in 43 cases]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:54-59. [PMID: 33541024 DOI: 10.3760/cma.j.cn501113-20190225-00058] [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
Objective: To investigate the clinical efficacy and safety of transjugular intrahepatic portosystemic shunt (TIPS) with the use of Viator stent in the treatment of cirrhotic portal hypertension. Methods: 43 cases with cirrhotic portal hypertension were implanted with Viatorr stent during TIPS procedure from March 2016 to August 2018. Serological indicators, color Doppler ultrasound, gastroscopy, rebleeding, ascites and hepatic encephalopathy were regularly followed up. Portal venous pressure, liver and kidney function, coagulation indexes were compared by t-test. Stent patency rate, hepatic encephalopathy incidence, rebleeding rate and survival rate were calculated by Kaplan-Meier curve. Results: TIPS procedure success rate was 100% in all patients. Portal pressure gradient was decreased from (25.57 ± 5.50) mmHg to (9.76 ± 2.92) mmHg before and after operation. Alanine aminotransferase (ALT) was significantly higher at 1 month after operation than before operation, but there was no significant difference between 3 and 6 months after and before operation. Total bilirubin, serum ammonia and prothrombin time at 1, 3, and 6 months after operation were higher than before operation. Albumin had no significant change compared with before operation, and creatinine and urea nitrogen were lower than before operation. The cumulative rebleeding rates at 12 and 24 months after operation was 0% and 9%, respectively. Of the 26 patients with ascites, 22 cases (84.6%) had complete disappearance of ascites and 3 (11.5%) had significant decrease of ascites. The cumulative incidence of hepatic encephalopathy at 3, 6, 12 and 24 months after surgery was 11.6%, 17.3%, 21.9% and 21.9%, respectively. The cumulative incidence of stent dysfunction at 12 and 24 months after surgery was 5.6% and 23.7%, respectively. The cumulative survival rate at 12 months and 24 months after surgery was 91.9%. Conclusion: TIPS procedure with Viatorr stent can effectively reduce portal pressure and rebleeding rate, improve intrahepatic shunt patency rate, and will not increase the risk of postoperative hepatic encephalopathy, and has a higher cumulative survival rate.
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Affiliation(s)
- H Zhou
- Department of Gastroenterology, General Hospital of Western Theater Command, Chengdu 610083, China North Sichuan Medical College, Nanchong 637000, China
| | - X Yao
- Department of Gastroenterology, General Hospital of Western Theater Command, Chengdu 610083, China
| | - S H Tang
- Department of Gastroenterology, General Hospital of Western Theater Command, Chengdu 610083, China
| | - M Xie
- Department of Gastroenterology, Sichuan Armed Police Corps Hospital, Leshan 614000, China
| | - Z S Feng
- Department of Gastroenterology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, China
| | - J P Qin
- Department of Gastroenterology, General Hospital of Western Theater Command, Chengdu 610083, China
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Yao X, Chen P, Cheng T, Sun K, Megharaj M, He W. Inoculation of Bacillus megaterium strain A14 alleviates cadmium accumulation in peanut: effects and underlying mechanisms. J Appl Microbiol 2021; 131:819-832. [PMID: 33386698 DOI: 10.1111/jam.14983] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 12/01/2020] [Accepted: 12/21/2020] [Indexed: 11/30/2022]
Abstract
AIMS A cadmium (Cd)-tolerant Bacillus megaterium strain A14 was used to investigate the effects and mechanisms of bacterial inoculation on peanut growth, Cd accumulation in grains and Cd fixation in Cd-contaminated soil. METHODS AND RESULTS Spectroscopic analysis showed that A14 has many functional groups (-OH, -NH2 and -COO et al.) distributed on its surface. The pot experiment indicated that compared to the Cd-contaminated soil alone treatment, inoculation with strain A14 increased shoot and root biomass by 59·93 and 58·31% respectively. The accumulation of Cd in grains decreased by 48·14%, while the proportion of exchangeable Cd in soil decreased from 40 to 26% in A14 inoculated soil. CONCLUSIONS Inoculation with B. megaterium A14 improved peanut plant growth via (i) adsorbing Cd2+ through functional groups on cell surface, (ii) immobilization of Cd in soil through extracellular secretions, (iii) scavenging the reactive oxygen species through production of antioxidant enzymes, and (iv) by reducing the phytoavailable Cd through regulation of Cd transport gene expression. SIGNIFICANCE AND IMPACT OF THE STUDY This study provided a new sight on microbial approach for the chemical composition transformation of soil Cd and associated food safety production, which pointed out an efficient way to improve peanut cultivation.
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Affiliation(s)
- X Yao
- College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - P Chen
- College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - T Cheng
- College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - K Sun
- College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - M Megharaj
- Global Centre for Environmental Remediation (GCER), Faculty of Science, The University of Newcastle (UoN), Callaghan, NSW, Australia
| | - W He
- College of Life Sciences, Nanjing Normal University, Nanjing, China
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Tan B, Barathi VA, Lin E, Ho C, Gan A, Yao X, Chan A, Wong DWK, Chua J, Tan GS, Schmetterer L. Longitudinal Structural and Microvascular Observation in RCS Rat Eyes Using Optical Coherence Tomography Angiography. Invest Ophthalmol Vis Sci 2021; 61:54. [PMID: 32579681 PMCID: PMC7415900 DOI: 10.1167/iovs.61.6.54] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose To evaluate the change of retinal thickness and ocular microvasculature in a rat model of retinitis pigmentosa using swept source optical coherence tomography angiography (SS-OCTA) Methods Three-weeks-old Royal College of Surgeons (RCS) rats (n = 8) and age-matched control rats (n = 14) were imaged by a prototype SS-OCTA system. Follow-up measurements occurred every three weeks on six RCS rats until week 18, and cross-sectional measurements were conducted on control rats. Thicknesses of different retinal layers and the total retina were measured. The enface angiograms from superficial vascular plexiform (SVP) and deep capillary plexiform (DCP) were analyzed, and the image sharpness was also extracted from the choroidal angiograms. Immunohistochemical analysis was done in the RCS rats after week 18, as well as in three-week-old RCS rats and age-matched controls. Results In RCS rats, the thicknesses of the ganglion cell complex, the nuclear layer, the debris/photoreceptor layer and the total retina decreased over the weeks (P < 0.001). The SVP metrics remained unchanged whereas the DCP metrics decreased significantly over the weeks (P < 0.001). The immunohistochemical analysis confirmed our OCTA findings of capillary dropout in the DCP. The choroidal plexus appeared indistinct initially due to scattering of light at the intact retinal pigment epithelium (RPE) and became more visible after week nine probably due to RPE degeneration. Loss of choriocapillaris was visualized at week 18. In control rats, no vascular change was detected, but nuclear layers, photoreceptor layers and total retina showed slight thinning with age (P < 0.001). Conclusions Photoreceptor degeneration in RCS rats was associated with the loss of capillaries in DCP, but not in SVP. The OCTA imaging allows for the characterization of structural and angiographic changes in rodent models.
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Yanga L, Zang S, Chen X, Yao X, Sun H, Liu Y, Dun W. Effects of feeding corn silage instead of peanut hay on the growth performance, meat quality and expression of growth-related genes in fattening lambs. ANIM NUTR FEED TECHN 2021. [DOI: 10.5958/0974-181x.2021.00021.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Chen YW, Sheng KX, Yao X, Xu CP, Qu LH, Guo Q, Chen JH, Zhang P. [Early mortality and risk analysis in adult patients with maintenance hemodialysis]. Zhonghua Nei Ke Za Zhi 2021; 60:35-40. [PMID: 33397019 DOI: 10.3760/cma.j.cn112138-20200608-00567] [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
Objective: To retrospectively analyze the early mortality and related risk factors in adult patients with maintenance hemodialysis (MHD). Methods: Adult MHD patients from 2008 to 2018 were enrolled and divided into training data group and validation data group. In training data group, multivariate logistic regression was used to analyze the risk factors of early death within 120 days after hemodialysis and establish a prediction model. The receiver operating characteristic (ROC) curve was applied to evaluate the prediction ability of the model. Results: A total of 4 885 patients were included. The cumulative mortality within 120 days was 20.97/100 person years, and that within 365 days was 12.25/100 person years. A total of 3 603 patients in the training data group were analyzed. The following risk factors were correlated with early mortality (all P<0.05), including age at start of dialysis over 60 years old (OR=1.792), non-chronic glomerulonephritis (OR=2.214), cardio-cerebrovascular disease (OR=2.695), plasma albumin less than 35 g/L (OR=1.358), platelet count less than 120×109/L (OR=2.194), serum creatinine less than 600 μmol/L (OR=1.652), blood urea nitrogen over 30 mmol/L (OR=1.887), blood phosphorus less than 1.13 mmol/L (OR=1.783), pulse pressure over 55 mmHg(1 mmHg=0.133 kPa) (OR=1.656), low density lipoprotein less than 1.5 mmol/L (OR=1.873), and blood calcium over 2.5 mmol/L (OR=1.876). Risk prediction model was established. The other 1 282 cases in the validation data group were verified. The area under ROC curve was 0.810, with sensitivity 85.7%, and specificity 62.5%. Conclusion: The mortality rate of adult MHD patients within 120 days after dialysis is high. The established prediction model can effectively predict the risk of early death.
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Affiliation(s)
- Y W Chen
- Kidney Disease Center, the First Affiliated Hospital, Medical College of Zhejiang University, Hangzhou 310006, ChinaChen youwei is working on the Department of Nephrology, Second Affiliated Hospital of Jiaxing Medical College, Jiaxing, Zhejiang 314000, China
| | - K X Sheng
- Kidney Disease Center, the First Affiliated Hospital, Medical College of Zhejiang University, Hangzhou 310006, ChinaChen youwei is working on the Department of Nephrology, Second Affiliated Hospital of Jiaxing Medical College, Jiaxing, Zhejiang 314000, China
| | - X Yao
- Kidney Disease Center, the First Affiliated Hospital, Medical College of Zhejiang University, Hangzhou 310006, ChinaChen youwei is working on the Department of Nephrology, Second Affiliated Hospital of Jiaxing Medical College, Jiaxing, Zhejiang 314000, China
| | - C P Xu
- Kidney Disease Center, the First Affiliated Hospital, Medical College of Zhejiang University, Hangzhou 310006, ChinaChen youwei is working on the Department of Nephrology, Second Affiliated Hospital of Jiaxing Medical College, Jiaxing, Zhejiang 314000, China
| | - L H Qu
- Kidney Disease Center, the First Affiliated Hospital, Medical College of Zhejiang University, Hangzhou 310006, ChinaChen youwei is working on the Department of Nephrology, Second Affiliated Hospital of Jiaxing Medical College, Jiaxing, Zhejiang 314000, China
| | - Q Guo
- Kidney Disease Center, the First Affiliated Hospital, Medical College of Zhejiang University, Hangzhou 310006, ChinaChen youwei is working on the Department of Nephrology, Second Affiliated Hospital of Jiaxing Medical College, Jiaxing, Zhejiang 314000, China
| | - J H Chen
- Kidney Disease Center, the First Affiliated Hospital, Medical College of Zhejiang University, Hangzhou 310006, ChinaChen youwei is working on the Department of Nephrology, Second Affiliated Hospital of Jiaxing Medical College, Jiaxing, Zhejiang 314000, China
| | - P Zhang
- Kidney Disease Center, the First Affiliated Hospital, Medical College of Zhejiang University, Hangzhou 310006, ChinaChen youwei is working on the Department of Nephrology, Second Affiliated Hospital of Jiaxing Medical College, Jiaxing, Zhejiang 314000, China
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Chua J, Hu Q, Ke M, Tan B, Hong J, Yao X, Hilal S, Venketasubramanian N, Garhöfer G, Cheung CY, Wong TY, Chen CLH, Schmetterer L. Retinal microvasculature dysfunction is associated with Alzheimer's disease and mild cognitive impairment. Alzheimers Res Ther 2020; 12:161. [PMID: 33276820 PMCID: PMC7718666 DOI: 10.1186/s13195-020-00724-0] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 11/10/2020] [Indexed: 12/20/2022]
Abstract
Background The retina and brain share many neuronal and vasculature characteristics. We investigated the retinal microvasculature in Alzheimer’s disease (AD) and mild cognitive impairment (MCI) using optical coherence tomography angiography (OCTA). Methods In this cross-sectional study, 24 AD participants, 37 MCI participants, and 29 controls were diagnosed according to internationally accepted criteria. OCTA images of the superficial and deep capillary plexus (SCP, DCP) of the retinal microvasculature were obtained using a commercial OCTA system (Zeiss Cirrus HD-5000 with AngioPlex, Carl Zeiss Meditec, Dublin, CA). The main outcome measures were vessel density (VD) and fractal dimension (FD) in the SCP and DCP within a 2.5-mm ring around the fovea which were compared between groups. Perfusion density of large vessels and foveal avascular zone (FAZ) area were additional outcome parameters. Results Age, gender, and race did not differ among groups. However, there was a significant difference in diabetes status (P = 0.039) and systolic blood pressure (P = 0.008) among the groups. After adjusting for confounders, AD participants showed significantly decreased VD in SCP and DCP (P = 0.006 and P = 0.015, respectively) and decreased FD in SCP (P = 0.006), compared to controls. MCI participants showed significantly decreased VD and FD only in SCP (P = 0.006 and P < 0.001, respectively) and not the DCP (P > 0.05) compared with controls. There was no difference in the OCTA variables between AD and MCI (P > 0.05). Perfusion density of large vessels and FAZ area did not differ significantly between groups (P > 0.05). Conclusions and relevance Eyes of patients with AD have significantly reduced macular VD in both plexuses whereas MCI participants only showed reduction in the superficial plexus. Changes in the retinal microvasculature and capillary network may offer a valuable insight on the brain in AD. Supplementary information The online version contains supplementary material available at 10.1186/s13195-020-00724-0.
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Affiliation(s)
- Jacqueline Chua
- Singapore Eye Research Institute, Singapore National Eye Centre, 20 College Road, The Academia, Level 6, Discovery Tower, Singapore, 169856, Singapore.,Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Medical School, National University of Singapore, Sha Tin, Singapore.,SERI-NTU Advanced Ocular Engineering (STANCE), Sha Tin, Singapore
| | - Qinglan Hu
- Singapore Eye Research Institute, Singapore National Eye Centre, 20 College Road, The Academia, Level 6, Discovery Tower, Singapore, 169856, Singapore.,SERI-NTU Advanced Ocular Engineering (STANCE), Sha Tin, Singapore
| | - Mengyuan Ke
- Singapore Eye Research Institute, Singapore National Eye Centre, 20 College Road, The Academia, Level 6, Discovery Tower, Singapore, 169856, Singapore.,SERI-NTU Advanced Ocular Engineering (STANCE), Sha Tin, Singapore
| | - Bingyao Tan
- Singapore Eye Research Institute, Singapore National Eye Centre, 20 College Road, The Academia, Level 6, Discovery Tower, Singapore, 169856, Singapore.,SERI-NTU Advanced Ocular Engineering (STANCE), Sha Tin, Singapore.,Institute for Health Technologies, Nanyang Technological University, Sha Tin, Singapore
| | - Jimmy Hong
- Singapore Eye Research Institute, Singapore National Eye Centre, 20 College Road, The Academia, Level 6, Discovery Tower, Singapore, 169856, Singapore
| | - Xinwen Yao
- Singapore Eye Research Institute, Singapore National Eye Centre, 20 College Road, The Academia, Level 6, Discovery Tower, Singapore, 169856, Singapore.,SERI-NTU Advanced Ocular Engineering (STANCE), Sha Tin, Singapore.,Institute for Health Technologies, Nanyang Technological University, Sha Tin, Singapore
| | - Saima Hilal
- Memory Aging and Cognition Centre, Departments of Pharmacology and Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Sha Tin, Singapore.,Saw Swee Hock School of Public Health, National University of Singapore, Sha Tin, Singapore.,Department of Pharmacology, National University of Singapore, Singapore, Singapore
| | - Narayanaswamy Venketasubramanian
- Memory Aging and Cognition Centre, Departments of Pharmacology and Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Sha Tin, Singapore.,Raffles Neuroscience Centre, Raffles Hospital, Singapore, Singapore
| | - Gerhard Garhöfer
- Department of Clinical Pharmacology, Medical University Vienna, Vienna, Austria
| | - Carol Y Cheung
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Sha Tin, Hong Kong
| | - Tien Yin Wong
- Singapore Eye Research Institute, Singapore National Eye Centre, 20 College Road, The Academia, Level 6, Discovery Tower, Singapore, 169856, Singapore.,Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Medical School, National University of Singapore, Sha Tin, Singapore
| | - Christopher Li-Hsian Chen
- Memory Aging and Cognition Centre, Departments of Pharmacology and Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Sha Tin, Singapore
| | - Leopold Schmetterer
- Singapore Eye Research Institute, Singapore National Eye Centre, 20 College Road, The Academia, Level 6, Discovery Tower, Singapore, 169856, Singapore. .,Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Medical School, National University of Singapore, Sha Tin, Singapore. .,SERI-NTU Advanced Ocular Engineering (STANCE), Sha Tin, Singapore. .,Institute for Health Technologies, Nanyang Technological University, Sha Tin, Singapore. .,Department of Clinical Pharmacology, Medical University Vienna, Vienna, Austria. .,Center for Medical Physics and Biomedical Engineering, Medical University Vienna, Vienna, Austria. .,Institute of Molecular and Clinical Ophthalmology, Basel, Switzerland.
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Ling Y, Wang M, Yao X, Gan Y, Schmetterer L, Zhou C, Su Y. Effect of spectral leakage on the image formation of Fourier-domain optical coherence tomography. Opt Lett 2020; 45:6394-6397. [PMID: 33258820 DOI: 10.1364/ol.404654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 10/22/2020] [Indexed: 06/12/2023]
Abstract
We report on the investigation of spectral leakage's impact on the reconstruction of Fourier-domain optical coherence tomography (FD-OCT). We discuss the shift-variant nature introduced by the spectral leakage and develop a novel spatial-domain FD-OCT image formation model. A proof-of-concept phantom experiment is conducted to validate our model. Compared with previous models, the proposed framework could better describe the image formation process, especially when the fineness of the axial structure approaches the theoretical resolution limit.
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Wang Y, Yao X, Tang MY, Liu L, Song SH, Tao ZY, Xia H, Chang XL, Fang Q. [Immune characteristics of Plasmodium reinfections in mice following chloroquine cure of primary Plasmodium infections]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 32:569-576. [PMID: 33325190 DOI: 10.16250/j.32.1374.2020164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To investigate the disease progression and immunoprotective characteristics in mice re-infected with homogeneous/heterogeneous Plasmodium strains following cure of Plasmodium infections with chloroquine at the peak of parasitemia. METHODS C57BL/6 mice were infected with the non-lethal P. yoelii 17XNL strain, and half of mice were given treatment with chloroquine at the peak of parasitemia (9 days post-infection), while the other mice were self-cured naturally. Then, all cured mice were re-infected with the equivalent lethal P. yoelii 17XL or P. berghei ANKA strain 90 days following primary Plasmodium infections. The parasitemia levels during primary infections and reinfections were measured by microscopic examinations of Giemsa-stained thin blood films, and the levels of the IgG antibody in sera and the percentages of memory T cell subsets in spleen cells were detected in mice using ELISA and flow cytometry before and after parasite reinfections, respectively. RESULTS Following primary infections with the P. yoelii 17XNL strain, the serum IgG antibody levels were (5.047 ± 0.924) pg/mL in the selfcured mice and (4.429 ± 0.624) pg/mL in the chloroquine-treated mice, respectively (t = 0.437, P > 0.05), which were both significantly higher than that in the uninfected mice (1.624 pg/mL ± 0.280 pg/mL) (F = 22.522, P < 0.01). There was no significant difference in the serum IgG antibody level among self-cured and chloroquine-treated mice re-infected with the P. yoelii 17XL strain or the P. berghei ANKA strain (F = 0.542, P > 0.05); however, the serum IgG antibody levels were all significantly higher in selfcured and chloroquine-treated mice re-infected with the P. yoelii 17XLstrain[(15.487±1.173)pg/mLand(15.965±1.150)pg/mL] or the P. berghei ANKA strain [(14.644 ± 1.523) pg/mL and (15.185 ± 1.333) pg/mL] relative to primary infections (F = 67.383, P < 0.01). There was no significant difference in the proportion of CD4+ [(34.208 ± 2.106), (32.820 ± 1.930), (34.023 ± 2.289), (35.608 ± 1.779) pg/mL] or CD8+ T memory cells [(17.935 ± 2.092), (18.918 ± 2.823), (17.103 ± 1.627), (17.873 ± 1.425) pg/mL] in self-cured and chloroquine-treated mice with primary infections with the P. yoelii 17XNL strain followed by re-infections with the P. yoelii 17XL strain or the P. berghei ANKA strain (F = 0.944 and 0.390, both P > 0.05); however, the proportions of the CD4+ or CD8+ T memory cells were significantly greater in self-cured and chloroquine-treated mice with primary infections with the P. yoelii 17XNL strain followed by re-infections with the P. yoelii 17XL strain or the P. berghei ANKA strain than in mice with primary infections (F = 50.532 and 21.751, both P < 0.01). CONCLUSIONS The cure of murine Plasmodium infections with chloroquine does not affect the production of effective immune protections in mice during parasite re-infections. Following a primary infection, mice show a protection against re-infections with either homogeneous or heterogeneous Plasmodium strains, and a higher-level resistance to re-infections with homogeneous parasite strains is found than with heterogeneous strains.
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Affiliation(s)
- Y Wang
- Department of Microbiology and Parasitology, Bengbu Medical College, Anhui Key Laboratory of Infection and Immunity, Bengbu 233030, China
| | - X Yao
- ▵Co-first author.,Department of Microbiology and Parasitology, Bengbu Medical College, Anhui Key Laboratory of Infection and Immunity, Bengbu 233030, China
| | - M Y Tang
- Grade 2016, School of Clinical Medical Sciences, Bengbu Medical College, China
| | - L Liu
- Grade 2018, The Second School of Clinical Medical Sciences, Bengbu Medical College, China
| | - S H Song
- Grade 2018, School of Psychiatry, Bengbu Medical College, China
| | - Z Y Tao
- Department of Microbiology and Parasitology, Bengbu Medical College, Anhui Key Laboratory of Infection and Immunity, Bengbu 233030, China
| | - H Xia
- Department of Microbiology and Parasitology, Bengbu Medical College, Anhui Key Laboratory of Infection and Immunity, Bengbu 233030, China
| | - X L Chang
- Department of Microbiology and Parasitology, Bengbu Medical College, Anhui Key Laboratory of Infection and Immunity, Bengbu 233030, China
| | - Q Fang
- Department of Microbiology and Parasitology, Bengbu Medical College, Anhui Key Laboratory of Infection and Immunity, Bengbu 233030, China
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Liu M, Li Y, Ma X, Zhang L, Yao X, Wang Q, Wang D, Shi J, Li J, Zhang L. 34P Clinical significance of neoadjuvant dose-dense chemotherapy for II and III stage breast cancer: A meta-analysis of published studies. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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