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Lee A, Chen K, Cheng C, Ho H, Yuen J, Ngo N, Law Y, Tay K. Intensive sampling of the umbra and penumbra improves clinically-significant prostate cancer detection and reduces risk of grade group upgrading at radical prostatectomy. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00226-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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2
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Yuen J, Block SS. Vision characteristics of Special Olympics athletes seen at the United States National Games 2010-2018. J Intellect Disabil Res 2022; 66:782-792. [PMID: 35938524 DOI: 10.1111/jir.12968] [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: 05/12/2022] [Revised: 06/20/2022] [Accepted: 07/08/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Special Olympics International (SOI) has provided eye assessments at no cost to athletes participating in competitions through the Special Olympics Lions Clubs International Foundation Opening Eyes (OE) programme. Access to vision services is crucial given the high rates of eye abnormalities found in studies collected at OE programmes in other countries. As of 2022, no studies covering vision data have been published on SOI athletes specifically from the USA. Therefore, this multiple cross-sectional study hopes to investigate the vision profile of US athletes over three national games, detecting any changes in vision and ocular health outcomes over an 8-year period. METHODS Vision assessments were conducted in the US national games of 2010, 2014 and 2018. Demographic and clinical data from 1427 vision assessments were used in this study. Prevalence of vision and ocular health abnormalities were compared across national games. RESULTS In our cohort of 1427 assessments with athletes' mean age ± SD of 29.8 ± 11.5 years, 85.3% (n = 1170) had an abnormal vision result with at least one of the following findings: decreased visual acuity of 20/40 or worse (31.0%, n = 442), refractive error including myopia (52.8%, n = 754), hypermetropia (15.7%, n = 224), and astigmatism (35.0%, n = 499), ocular misalignment distant (16.2%, n = 224) or near (17.2%, n = 239), or ocular abnormality (19.1%, n = 273). CONCLUSIONS This study demonstrates the burden of vision defects and ocular disease in US SOI athletes over the past decade. While continued effort must be made to train eye providers in caring for patients with ID to increase eyecare accessibility outside of SOI, vision assessments at national games can continue providing opportunities for improved ocular health in children and adults with ID.
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Affiliation(s)
- J Yuen
- Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - S S Block
- Illinois College of Optometry, Chicago, IL, USA
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3
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Holmes DP, Clement CI, Nguyen V, Healey PR, Lim R, White A, Yuen J, Lawlor M. Comparative study of 2-year outcomes for Hydrus or iStent inject microinvasive glaucoma surgery implants with cataract surgery. Clin Exp Ophthalmol 2022; 50:303-311. [PMID: 35077009 DOI: 10.1111/ceo.14048] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [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: 10/13/2021] [Revised: 11/29/2021] [Accepted: 12/27/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND To compare real-world 24-month outcomes of phacoemulsification combined with either iStent inject or Hydrus Microstent. METHODS Analysis of data from the Fight Glaucoma Blindness (FGB) international registry. Anonymized data from 344 eyes with mild-to-moderate open-angle glaucoma, normal-tension glaucoma or ocular hypertension that underwent phacoemulsification combined with either iStent inject (224) or Hydrus Microstent (120) were included. Data were adjusted for baseline characteristics using linear regression and propensity score matching. The primary endpoint was a comparison of mean intraocular pressure (IOP) at 24 months. RESULTS At 24 months, there was no significant difference in IOP reduction between the two groups, consistent across all analyses. The matched cohort showed iStent inject achieved 3.1 mmHg reduction and Hydrus a 2.3 mmHg reduction (p = 0.530) and a mean medication reduction of 1.0 for iStent inject versus 0.5 for Hydrus (p = 0.081). 5.4% of eyes in the iStent inject group and 7.5% of eyes in the Hydrus group required subsequent procedures to improve IOP control within 24 months. Complications were rare with no significant differences between the groups. CONCLUSIONS Twenty-four-month outcomes showed sustained IOP reduction with a good safety profile for both groups. There was no significant difference in IOP outcomes between the groups. There may be a small additional reduction in glaucoma medication usage following cataract surgery with iStent inject compared to Hydrus.
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Affiliation(s)
- David P Holmes
- Department of Ophthalmology, Royal Victorian Eye and Ear Hospital, East Melbourne, Victoria, Australia
| | - Colin I Clement
- Save Sight Institute, Faculty of Medicine and Health, University of Sydney, Australia.,Department of Ophthalmology, Sydney Eye Hospital, Sydney, New South Wales, Australia.,Department of Ophthalmology, Eye Associates, Sydney, New South Wales, Australia
| | - Vuong Nguyen
- Save Sight Institute, Faculty of Medicine and Health, University of Sydney, Australia
| | - Paul R Healey
- Save Sight Institute, Faculty of Medicine and Health, University of Sydney, Australia.,Department of Ophthalmology, Sydney Eye Hospital, Sydney, New South Wales, Australia.,Department of Ophthalmology, Eye Associates, Sydney, New South Wales, Australia.,Westmead Hospital, Cnr Hawkesbury Road and, Westmead, New South Wales, Australia.,Department of Ophthalmology, University of Sydney, Camperdown, New South Wales, Australia
| | - Ridia Lim
- Save Sight Institute, Faculty of Medicine and Health, University of Sydney, Australia.,Department of Ophthalmology, Sydney Eye Hospital, Sydney, New South Wales, Australia
| | - Andrew White
- Westmead Hospital, Cnr Hawkesbury Road and, Westmead, New South Wales, Australia.,Department of Ophthalmology, University of Sydney, Camperdown, New South Wales, Australia
| | - Joshua Yuen
- Department of Ophthalmology, Applecross Eye Clinic, Ardross, Western Australia, Australia
| | - Mitchell Lawlor
- Save Sight Institute, Faculty of Medicine and Health, University of Sydney, Australia.,Department of Ophthalmology, Sydney Eye Hospital, Sydney, New South Wales, Australia
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Lee A, Chen K, Law Y, Ngo N, Huang H, Tay K, Ho H, Cheng C, Yuen J. Multiparametric MRI-ultrasound software fusion prostate biopsy – initial results using a stereotactic robot-assisted transperineal prostate biopsy platform comparing saturation versus targeted biopsy. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)34155-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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5
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Yuen J, Whitfield PC. Brainstem cavernous malformations - no longer a forbidden territory? A systemic review of recent literature. Neurochirurgie 2020; 66:116-126. [PMID: 32112802 DOI: 10.1016/j.neuchi.2019.12.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 11/21/2019] [Accepted: 12/17/2019] [Indexed: 10/24/2022]
Abstract
BACKGROUND Due to its eloquent location and potentially devastating neurological consequences, the management of brainstem cavernous malformations (CCMs) attracts considerable debate. There is currently a paucity of Level 1 evidence for their management. The aim of this literature review is to explore the current evidence on the risk-benefit profile of different management options. METHODS A systemic literature search, following the PRISMA algorithm was performed on publications between 2010 and 2018 using the Pubmed database, with the relevant keywords. Only English articles were included. Articles focusing on spinal CCMs and studies with less than 30 participants were excluded. RESULTS A total of 222 search results were reviewed and after removal of duplicates and screening of abstracts, 28 clinical papers comprising 30 or more brainstem CCM cases were included in the study. The heterogeneity of the publications precluded a formal meta-analysis of results. The general consensus is that for CCMs presenting with severe symptoms and/or multiple haemorrhages that reach an accessible pial surface, surgery is considered to be the gold-standard treatment, with some authors suggesting the optimal timing to be within two to six weeks of ictus. For those patients with multiple, deep-seated CCM related haemorrhages that do not reach the pial surface, stereotactic radiosurgery (SRS) can be considered. Conservative treatment is generally considered in incidental cases. Management of brainstem cavernomas of other categories still remains controversial. CONCLUSIONS Due to their highly eloquent location, brainstem CCMs are challenging lesions to manage. Management must be balanced by the risk-benefit profile and tailored to the individual patients and their treating clinicians. This review provides a comprehensive reference considering all treatment options and provides a basis for evidence-based patient counselling.
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Affiliation(s)
- J Yuen
- South West Neurosurgery Centre, Derriford Hospital, Plymouth Devon, UK PL6 8DH.
| | - P C Whitfield
- South West Neurosurgery Centre, Derriford Hospital, Plymouth Devon, UK PL6 8DH
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Yuen J, Sharma H. Reverse Wilson's framing for lumbar spinal surgery in patients with stiff shoulders. Ann R Coll Surg Engl 2019; 101:530. [PMID: 31155909 DOI: 10.1308/rcsann.2019.0079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- J Yuen
- Derriford Hospital, Southwest Neurosurgical Centre, Plymouth, UK
| | - H Sharma
- Derriford Hospital, Southwest Neurosurgical Centre, Plymouth, UK
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Yuen J, Muquit S, Whitfield P. Does open-access provide an opportunity or pose a barrier? A comprehensive survey on the cost of publication in exclusively open-access surgical journals. Int J Surg 2018. [DOI: 10.1016/j.ijsu.2018.05.488] [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]
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Yuen J, Selbi W, Muquit S, Berei T. Complication rates of external ventricular drain insertion by surgeons of different experience. Ann R Coll Surg Engl 2018; 100:221-225. [PMID: 29364007 PMCID: PMC5930101 DOI: 10.1308/rcsann.2017.0221] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [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] [Accepted: 10/16/2017] [Indexed: 11/22/2022] Open
Abstract
Introduction Insertion of external ventricular drain (EVD) is a widely accepted, routinely performed procedure for treatment of hydrocephalus and raised intracranial pressure. The purpose of this study was to investigate whether a surgeon's experience affects the associated complication rate. Methods This retrospective study included all adult patients undergoing EVD insertion at a single centre between July 2013 and June 2015. Medical records were retrieved to obtain details on patient demographics, surgical indication, risk factors for infection and use of anticoagulants or antiplatelets. Surgeon experience, operative time, intraoperative antibiotic prophylaxis, need for revision surgery and EVD associated infection were examined. Information on catheter tip position and radiological evidence of intracranial haemorrhage was obtained from postoperative imaging. Results A total of 89 patients were included in the study. The overall infection, haemorrhage and revision rates were 4.8%, 7.8% and 13.0% respectively, with no significant difference among surgeons of different experience. The mean operating time for patients who developed an infection was 22 minutes while for those without an infection, it was 33 minutes (p=0.474). Anticoagulation/antiplatelet use did not appear to increase the rate of haemorrhage. The infection rate did not correlate with known risk factors (eg diabetes and steroids), operation start time (daytime vs out of hours) or duration of surgery although intraoperative (single dose) antibiotic prophylaxis seemed to reduce the infection rate. There was also a correlation between longer duration of catheterisation and increased risk of infection. Conclusions This is the first study demonstrating there is no significant difference in complication rates between surgeons of different experience. EVD insertion is a core neurosurgical skill and junior trainees should be trained to perform it.
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Affiliation(s)
- J Yuen
- Plymouth Hospitals NHS Trust, UK
| | - W Selbi
- Plymouth Hospitals NHS Trust, UK
| | - S Muquit
- Plymouth Hospitals NHS Trust, UK
| | - T Berei
- Plymouth Hospitals NHS Trust, UK
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Ng KKC, Chok KSH, Chan ACY, Cheung TT, Wong TCL, Fung JYY, Yuen J, Poon RTP, Fan ST, Lo CM. Randomized clinical trial of hepatic resection versus radiofrequency ablation for early-stage hepatocellular carcinoma. Br J Surg 2017; 104:1775-1784. [PMID: 29091283 DOI: 10.1002/bjs.10677] [Citation(s) in RCA: 204] [Impact Index Per Article: 29.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 06/22/2017] [Accepted: 07/11/2017] [Indexed: 12/11/2022]
Abstract
Abstract
Background
Hepatic resection and radiofrequency ablation (RFA) are treatment options for early-stage hepatocellular carcinoma (HCC). Whether tumour recurrence and long-term survival favour either treatment has not been established. This randomized trial aimed to test the hypothesis that RFA is superior to hepatic resection in terms of lower tumour recurrence rate and better long-term survival.
Methods
Patients with early-stage HCC (solitary tumour no larger than 5 cm; or no more than 3 tumours, each 3 cm or smaller) were randomized into hepatic resection and RFA groups. Demographic and clinical characteristics, and short- and long-term outcome measures were compared between groups. Primary and secondary outcome measures were overall tumour recurrence and survival respectively.
Results
Clinicopathological data were similar in the two groups, which each contained 109 patients. The RFA group had a shorter treatment duration, less blood loss and shorter hospital stay than the resection group. Mortality and morbidity rates were similar in the two groups. The overall tumour recurrence rate was similar in the resection and RFA groups (71·3 versus 81·7 per cent respectively). The 1-, 3-, 5- and 10-year overall survival rates were 94·5, 80·6, 66·5 and 47·6 per cent respectively in the resection group, compared with 95·4, 82·3, 66·4 and 41·8 per cent in the RFA group (P = 0·531). Corresponding disease-free survival rates were 74·1, 50·9, 41·5 and 31·9 per cent in the resection group, and 70·6, 46·6, 33·6 and 18·6 per cent in the RFA group (P = 0·072).
Conclusion
RFA for early-stage HCC is not superior to hepatic resection, in terms of tumour recurrence, overall survival and disease-free survival. Registration number: HKUCTR-10 (http://www.hkuctr.com).
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Affiliation(s)
- K K C Ng
- Department of Surgery, University of Hong Kong, Hong Kong, China
- Department of Surgery, Queen Mary Hospital, Hong Kong, China
| | - K S H Chok
- Department of Surgery, University of Hong Kong, Hong Kong, China
- State Key Laboratory for Liver Research, University of Hong Kong, Hong Kong, China
- Department of Surgery, Queen Mary Hospital, Hong Kong, China
| | - A C Y Chan
- Department of Surgery, University of Hong Kong, Hong Kong, China
- State Key Laboratory for Liver Research, University of Hong Kong, Hong Kong, China
- Department of Surgery, Queen Mary Hospital, Hong Kong, China
| | - T T Cheung
- Department of Surgery, University of Hong Kong, Hong Kong, China
- State Key Laboratory for Liver Research, University of Hong Kong, Hong Kong, China
- Department of Surgery, Queen Mary Hospital, Hong Kong, China
| | - T C L Wong
- Department of Surgery, University of Hong Kong, Hong Kong, China
- Department of Surgery, Queen Mary Hospital, Hong Kong, China
| | - J Y Y Fung
- State Key Laboratory for Liver Research, University of Hong Kong, Hong Kong, China
- Department of Medicine, University of Hong Kong, Hong Kong, China
- Department of Medicine, Queen Mary Hospital, Hong Kong, China
| | - J Yuen
- Department of Diagnostic and Interventional Radiology, Hong Kong Sanatorium and Hospital, Hong Kong, China
| | - R T P Poon
- Department of Surgery, University of Hong Kong, Hong Kong, China
- State Key Laboratory for Liver Research, University of Hong Kong, Hong Kong, China
| | - S T Fan
- Department of Surgery, University of Hong Kong, Hong Kong, China
- State Key Laboratory for Liver Research, University of Hong Kong, Hong Kong, China
- Liver Surgery Centre, Hong Kong Sanatorium and Hospital, Hong Kong, China
| | - C M Lo
- Department of Surgery, University of Hong Kong, Hong Kong, China
- State Key Laboratory for Liver Research, University of Hong Kong, Hong Kong, China
- Department of Surgery, Queen Mary Hospital, Hong Kong, China
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Atkinson C, Yuen J, Poder J, Hau E, Chin Y. P2.14-010 The Time-Weighted Mid-Ventilation Technique: Reducing Planning Target Volumes For Patients Undergoing Lung Stereotactic Body Radiotherapy. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Thomas-Sharma S, Andrade-Piedra J, Carvajal Yepes M, Hernandez Nopsa JF, Jeger MJ, Jones RAC, Kromann P, Legg JP, Yuen J, Forbes GA, Garrett KA. A Risk Assessment Framework for Seed Degeneration: Informing an Integrated Seed Health Strategy for Vegetatively Propagated Crops. Phytopathology 2017; 107:1123-1135. [PMID: 28545348 DOI: 10.1094/phyto-09-16-0340-r] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Pathogen buildup in vegetative planting material, termed seed degeneration, is a major problem in many low-income countries. When smallholder farmers use seed produced on-farm or acquired outside certified programs, it is often infected. We introduce a risk assessment framework for seed degeneration, evaluating the relative performance of individual and combined components of an integrated seed health strategy. The frequency distribution of management performance outcomes was evaluated for models incorporating biological and environmental heterogeneity, with the following results. (1) On-farm seed selection can perform as well as certified seed, if the rate of success in selecting healthy plants for seed production is high; (2) when choosing among within-season management strategies, external inoculum can determine the relative usefulness of 'incidence-altering management' (affecting the proportion of diseased plants/seeds) and 'rate-altering management' (affecting the rate of disease transmission in the field); (3) under severe disease scenarios, where it is difficult to implement management components at high levels of effectiveness, combining management components can be synergistic and keep seed degeneration below a threshold; (4) combining management components can also close the yield gap between average and worst-case scenarios. We also illustrate the potential for expert elicitation to provide parameter estimates when empirical data are unavailable. [Formula: see text] Copyright © 2017 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license .
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Affiliation(s)
- S Thomas-Sharma
- First, fourth, and eleventh authors: Department of Plant Pathology, Kansas State University, Manhattan; first author: Department of Plant Pathology, University of Wisconsin-Madison, Madison; second author: International Potato Center, Lima, Peru; third author: International Center for Tropical Agriculture, Cali, Colombia; fourth and eleventh authors: Plant Pathology Department, Institute for Sustainable Food Systems, and Emerging Pathogens Institute, University of Florida, Gainesville; fifth author: Centre for Environmental Policy, Imperial College London; sixth author: Institute of Agriculture, University of Western Australia, Crawley, Australia; seventh author: International Potato Center, Quito, Ecuador; eighth author: International Institute of Tropical Agriculture, Dar es Salaam, Tanzania; ninth author: Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden; and tenth author: International Potato Center, Kunming, China
| | - J Andrade-Piedra
- First, fourth, and eleventh authors: Department of Plant Pathology, Kansas State University, Manhattan; first author: Department of Plant Pathology, University of Wisconsin-Madison, Madison; second author: International Potato Center, Lima, Peru; third author: International Center for Tropical Agriculture, Cali, Colombia; fourth and eleventh authors: Plant Pathology Department, Institute for Sustainable Food Systems, and Emerging Pathogens Institute, University of Florida, Gainesville; fifth author: Centre for Environmental Policy, Imperial College London; sixth author: Institute of Agriculture, University of Western Australia, Crawley, Australia; seventh author: International Potato Center, Quito, Ecuador; eighth author: International Institute of Tropical Agriculture, Dar es Salaam, Tanzania; ninth author: Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden; and tenth author: International Potato Center, Kunming, China
| | - M Carvajal Yepes
- First, fourth, and eleventh authors: Department of Plant Pathology, Kansas State University, Manhattan; first author: Department of Plant Pathology, University of Wisconsin-Madison, Madison; second author: International Potato Center, Lima, Peru; third author: International Center for Tropical Agriculture, Cali, Colombia; fourth and eleventh authors: Plant Pathology Department, Institute for Sustainable Food Systems, and Emerging Pathogens Institute, University of Florida, Gainesville; fifth author: Centre for Environmental Policy, Imperial College London; sixth author: Institute of Agriculture, University of Western Australia, Crawley, Australia; seventh author: International Potato Center, Quito, Ecuador; eighth author: International Institute of Tropical Agriculture, Dar es Salaam, Tanzania; ninth author: Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden; and tenth author: International Potato Center, Kunming, China
| | - J F Hernandez Nopsa
- First, fourth, and eleventh authors: Department of Plant Pathology, Kansas State University, Manhattan; first author: Department of Plant Pathology, University of Wisconsin-Madison, Madison; second author: International Potato Center, Lima, Peru; third author: International Center for Tropical Agriculture, Cali, Colombia; fourth and eleventh authors: Plant Pathology Department, Institute for Sustainable Food Systems, and Emerging Pathogens Institute, University of Florida, Gainesville; fifth author: Centre for Environmental Policy, Imperial College London; sixth author: Institute of Agriculture, University of Western Australia, Crawley, Australia; seventh author: International Potato Center, Quito, Ecuador; eighth author: International Institute of Tropical Agriculture, Dar es Salaam, Tanzania; ninth author: Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden; and tenth author: International Potato Center, Kunming, China
| | - M J Jeger
- First, fourth, and eleventh authors: Department of Plant Pathology, Kansas State University, Manhattan; first author: Department of Plant Pathology, University of Wisconsin-Madison, Madison; second author: International Potato Center, Lima, Peru; third author: International Center for Tropical Agriculture, Cali, Colombia; fourth and eleventh authors: Plant Pathology Department, Institute for Sustainable Food Systems, and Emerging Pathogens Institute, University of Florida, Gainesville; fifth author: Centre for Environmental Policy, Imperial College London; sixth author: Institute of Agriculture, University of Western Australia, Crawley, Australia; seventh author: International Potato Center, Quito, Ecuador; eighth author: International Institute of Tropical Agriculture, Dar es Salaam, Tanzania; ninth author: Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden; and tenth author: International Potato Center, Kunming, China
| | - R A C Jones
- First, fourth, and eleventh authors: Department of Plant Pathology, Kansas State University, Manhattan; first author: Department of Plant Pathology, University of Wisconsin-Madison, Madison; second author: International Potato Center, Lima, Peru; third author: International Center for Tropical Agriculture, Cali, Colombia; fourth and eleventh authors: Plant Pathology Department, Institute for Sustainable Food Systems, and Emerging Pathogens Institute, University of Florida, Gainesville; fifth author: Centre for Environmental Policy, Imperial College London; sixth author: Institute of Agriculture, University of Western Australia, Crawley, Australia; seventh author: International Potato Center, Quito, Ecuador; eighth author: International Institute of Tropical Agriculture, Dar es Salaam, Tanzania; ninth author: Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden; and tenth author: International Potato Center, Kunming, China
| | - P Kromann
- First, fourth, and eleventh authors: Department of Plant Pathology, Kansas State University, Manhattan; first author: Department of Plant Pathology, University of Wisconsin-Madison, Madison; second author: International Potato Center, Lima, Peru; third author: International Center for Tropical Agriculture, Cali, Colombia; fourth and eleventh authors: Plant Pathology Department, Institute for Sustainable Food Systems, and Emerging Pathogens Institute, University of Florida, Gainesville; fifth author: Centre for Environmental Policy, Imperial College London; sixth author: Institute of Agriculture, University of Western Australia, Crawley, Australia; seventh author: International Potato Center, Quito, Ecuador; eighth author: International Institute of Tropical Agriculture, Dar es Salaam, Tanzania; ninth author: Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden; and tenth author: International Potato Center, Kunming, China
| | - J P Legg
- First, fourth, and eleventh authors: Department of Plant Pathology, Kansas State University, Manhattan; first author: Department of Plant Pathology, University of Wisconsin-Madison, Madison; second author: International Potato Center, Lima, Peru; third author: International Center for Tropical Agriculture, Cali, Colombia; fourth and eleventh authors: Plant Pathology Department, Institute for Sustainable Food Systems, and Emerging Pathogens Institute, University of Florida, Gainesville; fifth author: Centre for Environmental Policy, Imperial College London; sixth author: Institute of Agriculture, University of Western Australia, Crawley, Australia; seventh author: International Potato Center, Quito, Ecuador; eighth author: International Institute of Tropical Agriculture, Dar es Salaam, Tanzania; ninth author: Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden; and tenth author: International Potato Center, Kunming, China
| | - J Yuen
- First, fourth, and eleventh authors: Department of Plant Pathology, Kansas State University, Manhattan; first author: Department of Plant Pathology, University of Wisconsin-Madison, Madison; second author: International Potato Center, Lima, Peru; third author: International Center for Tropical Agriculture, Cali, Colombia; fourth and eleventh authors: Plant Pathology Department, Institute for Sustainable Food Systems, and Emerging Pathogens Institute, University of Florida, Gainesville; fifth author: Centre for Environmental Policy, Imperial College London; sixth author: Institute of Agriculture, University of Western Australia, Crawley, Australia; seventh author: International Potato Center, Quito, Ecuador; eighth author: International Institute of Tropical Agriculture, Dar es Salaam, Tanzania; ninth author: Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden; and tenth author: International Potato Center, Kunming, China
| | - G A Forbes
- First, fourth, and eleventh authors: Department of Plant Pathology, Kansas State University, Manhattan; first author: Department of Plant Pathology, University of Wisconsin-Madison, Madison; second author: International Potato Center, Lima, Peru; third author: International Center for Tropical Agriculture, Cali, Colombia; fourth and eleventh authors: Plant Pathology Department, Institute for Sustainable Food Systems, and Emerging Pathogens Institute, University of Florida, Gainesville; fifth author: Centre for Environmental Policy, Imperial College London; sixth author: Institute of Agriculture, University of Western Australia, Crawley, Australia; seventh author: International Potato Center, Quito, Ecuador; eighth author: International Institute of Tropical Agriculture, Dar es Salaam, Tanzania; ninth author: Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden; and tenth author: International Potato Center, Kunming, China
| | - K A Garrett
- First, fourth, and eleventh authors: Department of Plant Pathology, Kansas State University, Manhattan; first author: Department of Plant Pathology, University of Wisconsin-Madison, Madison; second author: International Potato Center, Lima, Peru; third author: International Center for Tropical Agriculture, Cali, Colombia; fourth and eleventh authors: Plant Pathology Department, Institute for Sustainable Food Systems, and Emerging Pathogens Institute, University of Florida, Gainesville; fifth author: Centre for Environmental Policy, Imperial College London; sixth author: Institute of Agriculture, University of Western Australia, Crawley, Australia; seventh author: International Potato Center, Quito, Ecuador; eighth author: International Institute of Tropical Agriculture, Dar es Salaam, Tanzania; ninth author: Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden; and tenth author: International Potato Center, Kunming, China
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Ojiambo PS, Yuen J, van den Bosch F, Madden LV. Epidemiology: Past, Present, and Future Impacts on Understanding Disease Dynamics and Improving Plant Disease Management-A Summary of Focus Issue Articles. Phytopathology 2017; 107:1092-1094. [PMID: 29205105 DOI: 10.1094/phyto-07-17-0248-fi] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Epidemiology has made significant contributions to plant pathology by elucidating the general principles underlying the development of disease epidemics. This has resulted in a greatly improved theoretical and empirical understanding of the dynamics of disease epidemics in time and space, predictions of disease outbreaks or the need for disease control in real-time basis, and tactical and strategic solutions to disease problems. Availability of high-resolution experimental data at multiple temporal and spatial scales has now provided a platform to test and validate theories on the spread of diseases at a wide range of spatial scales ranging from the local to the landscape level. Relatively new approaches in plant disease epidemiology, ranging from network to information theory, coupled with the availability of large-scale datasets and the rapid development of computer technology, are leading to revolutionary thinking about epidemics that can result in considerable improvement of strategic and tactical decision making in the control and management of plant diseases. Methods that were previously restricted to topics such as population biology or evolution are now being employed in epidemiology to enable a better understanding of the forces that drive the development of plant disease epidemics in space and time. This Focus Issue of Phytopathology features research articles that address broad themes in epidemiology including social and political consequences of disease epidemics, decision theory and support, pathogen dispersal and disease spread, disease assessment and pathogen biology and disease resistance. It is important to emphasize that these articles are just a sample of the types of research projects that are relevant to epidemiology. Below, we provide a succinct summary of the articles that are published in this Focus Issue .
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Affiliation(s)
- P S Ojiambo
- 2017 Focus Issue Senior Editors First author: Center for Integrated Fungal Research, Department of Entomology and Plant Pathology, North Carolina State University, Raleigh 27695; second author: Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden; third author: Rothamsted Research, West Common, Harpenden, AL5 2JQ, U.K.; and fourth author: Department of Plant Pathology, The Ohio State University, Ohio Agricultural Research and Development Center, Wooster 44691
| | - J Yuen
- 2017 Focus Issue Senior Editors First author: Center for Integrated Fungal Research, Department of Entomology and Plant Pathology, North Carolina State University, Raleigh 27695; second author: Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden; third author: Rothamsted Research, West Common, Harpenden, AL5 2JQ, U.K.; and fourth author: Department of Plant Pathology, The Ohio State University, Ohio Agricultural Research and Development Center, Wooster 44691
| | - F van den Bosch
- 2017 Focus Issue Senior Editors First author: Center for Integrated Fungal Research, Department of Entomology and Plant Pathology, North Carolina State University, Raleigh 27695; second author: Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden; third author: Rothamsted Research, West Common, Harpenden, AL5 2JQ, U.K.; and fourth author: Department of Plant Pathology, The Ohio State University, Ohio Agricultural Research and Development Center, Wooster 44691
| | - L V Madden
- 2017 Focus Issue Senior Editors First author: Center for Integrated Fungal Research, Department of Entomology and Plant Pathology, North Carolina State University, Raleigh 27695; second author: Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden; third author: Rothamsted Research, West Common, Harpenden, AL5 2JQ, U.K.; and fourth author: Department of Plant Pathology, The Ohio State University, Ohio Agricultural Research and Development Center, Wooster 44691
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Yazer MH, van de Watering L, Lozano M, Sirdesai S, Rushford K, Wood EM, Yokoyama AP, Kutner JM, Lin Y, Callum J, Cserti-Gazdewich C, Lieberman L, Pendergrast J, Pendry K, Murphy MF, Selleng K, Greinacher A, Marwaha N, Sharma R, Jain A, Orlin Y, Yahalom V, Perseghin P, Incontri A, Masera N, Okazaki H, Ikeda T, Nagura Y, Zwaginga JJ, Pogłod R, Rosiek A, Letowska M, Yuen J, Cid J, Harm SK, Adhikari P. Development of RBC transfusion indications and the collection of patient-specific pre-transfusion information. Vox Sang 2017; 112:e22-e47. [PMID: 28524359 DOI: 10.1111/vox.12509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | - S Sirdesai
- Department of Clinical Haematology, Monash Health, Melbourne, Victoria, Australia
| | - K Rushford
- Monash Pathology, Monash Health, Melbourne, Victoria, Australia
| | - E M Wood
- Department of Clinical Haematology Monash Health and Transfusion Research Unit, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - A P Yokoyama
- Hemotherapy and Cell Therapy Department, Hospital Israelita Albert Einstein, Av. Albert Einstein, 627 - Bloco E, São Paulo, SP, 05651-901, Brazil
| | - J M Kutner
- Hemotherapy and Cell Therapy Department, Hospital Israelita Albert Einstein, Av. Albert Einstein, 627 - Bloco E, São Paulo, SP, 05651-901, Brazil
| | - Y Lin
- Department of Clinical Pathology, Sunnybrook Health Sciences Centre, 2075 Bayview Avenue, Room B2-04, Toronto, ON, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, 2075 Bayview Avenue, Room B2-04, Toronto, ON, M4N 3M5, Canada
| | - J Callum
- Department of Clinical Pathology, Sunnybrook Health Sciences Centre, 2075 Bayview Avenue, Room B2-04, Toronto, ON, Canada
| | - C Cserti-Gazdewich
- Department of Medicine / Laboratory Medicine & Pathobiology, University of Toronto, Toronto General Hospital 3EC-306, 200 Elizabeth Street, Toronto, ON, Canada, M5G-2C4.,Laboratory Medicine Program, Laboratory Hematology: Blood Transfusion Laboratory, University Health Network, Toronto General Hospital 3EC-306, 200 Elizabeth Street, Toronto, ON, Canada, M5G-2C4
| | - L Lieberman
- Department of Laboratory Hematology (Transfusion Medicine), University Health Network, 200 Elizabeth Street, Suite 306, Toronto, ON, Canada, M5G 2C4
| | - J Pendergrast
- Department of Laboratory Hematology (Transfusion Medicine), University Health Network, 200 Elizabeth Street, Suite 306, Toronto, ON, Canada, M5G 2C4
| | - K Pendry
- Central Manchester University Hospitals, NHS Foundation Trust, Oxford Rd, Manchester, M13 9WL.,NHS Blood and Transplant Manchester Blood Centre, Plymouth Grove, Manchester, M13 9LL, UK
| | - M F Murphy
- Blood Transfusion Medicine, University of Oxford, Headley Way, Headington, Oxford, OX3 9BQ, UK.,NHS Blood andTransplant and Oxford University Hospitals NHS Foundation Trust, Headley Way, Headington, Oxford, OX3 9BQ, UK.,NHS Blood & Transplant, John Radcliffe Hospital, Headley Way, Headington, Oxford, OX3 9BQ, UK
| | - K Selleng
- Institut für Immunologie und Transfusionsmedizin, Universitätsmedizin Greifswald, Sauerbruchstrasse, 17475, Greifswald, Germany
| | - A Greinacher
- Institut für Immunologie und Transfusionsmedizin, Universitätsmedizin Greifswald, Sauerbruchstrasse, 17475, Greifswald, Germany
| | - N Marwaha
- Department of Transfusion Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - R Sharma
- Department of Transfusion Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - A Jain
- Department of Transfusion Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Y Orlin
- Transfusion & Apheresis Services, Rabin Medical Center, Petach Tikva, Israel
| | - V Yahalom
- Transfusion & Apheresis Services, Rabin Medical Center, Petach Tikva, Israel
| | - P Perseghin
- UOS Aferesi e nuove tecnologie trasfusionali-Laboratorio di Criobiologia, ASST-Monza Ospedale San Gerardo, Via Pergolesi 33, Monza (MB), 20900, Italy
| | - A Incontri
- UOS Aferesi e nuove tecnologie trasfusionali, ASST-Monza Ospedale San Gerardo, Via Pergolesi 33, Monza (MB), 20900, Italy
| | - N Masera
- Clinica Pediatrica, Università di Milano Bicocca and A. O. San Gerardo, Via Pergolesi 33, Monza (MB), 20900, Italy
| | - H Okazaki
- Department of Blood Transfusion, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - T Ikeda
- Department of Blood Transfusion, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Y Nagura
- Department of Blood Transfusion, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - J J Zwaginga
- Department of Immunohematology and Bloodtransfusion, Center for Stem Cell Therapies, Leiden University Medical Center, Albinusdreef 2, Building 1, E3-Q P.O. Box 9600, 2300, RC Leiden, The Netherlands
| | - R Pogłod
- Department of Transfusion Medicine, Institute of Hematology and Transfusion Medicine, ul. Indira Gandhi 14, Warsaw, 02-776, Poland
| | - A Rosiek
- Department for Quality Assurance and Organization of Blood Transfusion Service, Institute of Hematology and Transfusion Medicine, ul. Indira Gandhi 14, Warsaw, 02-776, Poland
| | - M Letowska
- Department for Diagnostics for Hematology and Transfusion Service, Institute of Hematology and Transfusion Medicine, ul. Indira Gandhi 14, Warsaw, 02-776, Poland
| | - J Yuen
- Blood Transfusion Services, Department of Laboratory Medicine, Tan Tock Seng Hospital, Level 2 - Podium Block, 11 Jalan Tan Tock Seng, 308433, Singapore
| | - J Cid
- Apheresis Unit, Department of Hemotherapy and Hemostasis, Hospital Clínic, Villarroel 170, 08036 Barcelona, Catalonia, Spain
| | - S K Harm
- University of Vermont Medical Center, 111 Colchester Avenue, Burlington, VT, 05401, USA
| | - P Adhikari
- University of Vermont Medical Center, 111 Colchester Avenue, Burlington, VT, 05401, USA
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Yazer MH, van de Watering L, Lozano M, Sirdesai S, Rushford K, Wood EM, Yokoyama AP, Kutner JM, Lin Y, Callum J, Cserti-Gazdewich C, Lieberman L, Pendergrast J, Pendry K, Murphy MF, Selleng K, Greinacher A, Marwaha N, Sharma R, Jain A, Orlin Y, Yahalom V, Perseghin P, Incontri A, Masera N, Okazaki H, Ikeda T, Nagura Y, Zwaginga JJ, Pogłod R, Rosiek A, Letowska M, Yuen J, Cid J, Harm SK, Adhikari P. Development of RBC transfusion indications and the collection of patient-specific pre-transfusion information: summary. Vox Sang 2017; 112:487-494. [PMID: 28524235 DOI: 10.1111/vox.12496] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- M H Yazer
- The Institute for Transfusion Medicine, University of Pittsburgh and University of Southern Denmark, 3636 Blvd of the Allies, Pittsburgh, PA, 15213, USA
| | - L van de Watering
- Jon J van Rood Center for Clinical Transfusion Research, Sanquin - LUMC, Plesmaniaan 1a, Leiden, 2333 BZ, the Netherlands
| | - M Lozano
- Department of Hemotherapy and Hemostasis, University Clinic Hospital, Villaroel 170, Barcelona, 08036, Spain
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Koivusalo M, Vermeiren C, Yuen J, Reeve C, Gadbois S, Katz K. Canine scent detection as a tool to distinguish meticillin-resistant Staphylococcus aureus. J Hosp Infect 2017; 96:93-95. [DOI: 10.1016/j.jhin.2017.03.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 03/02/2017] [Indexed: 10/20/2022]
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Savary S, Bregaglio S, Willocquet L, Gustafson D, Mason D’Croz D, Sparks A, Castilla N, Djurle A, Allinne C, Sharma M, Rossi V, Amorim L, Bergamin A, Yuen J, Esker P, McRoberts N, Avelino J, Duveiller E, Koo J, Garrett K. Crop health and its global impacts on the components of food security. Food Secur 2017. [DOI: 10.1007/s12571-017-0659-1] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Khor L, Sultana R, Yeong J, Huang H, Teo J, Yuen J, Tan P. Prognostic grade grouping in prostate cancer of Singapore men. Pathology 2017. [DOI: 10.1016/j.pathol.2016.09.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Yuen J, Pluthero FG, Douda DN, Riedl M, Cherry A, Ulanova M, Kahr WHA, Palaniyar N, Licht C. NETosing Neutrophils Activate Complement Both on Their Own NETs and Bacteria via Alternative and Non-alternative Pathways. Front Immunol 2016; 7:137. [PMID: 27148258 PMCID: PMC4831636 DOI: 10.3389/fimmu.2016.00137] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Accepted: 03/28/2016] [Indexed: 01/28/2023] Open
Abstract
Neutrophils deposit antimicrobial proteins, such as myeloperoxidase and proteases on chromatin, which they release as neutrophil extracellular traps (NETs). Neutrophils also carry key components of the complement alternative pathway (AP) such as properdin or complement factor P (CFP), complement factor B (CFB), and C3. However, the contribution of these complement components and complement activation during NET formation in the presence and absence of bacteria is poorly understood. We studied complement activation on NETs and a Gram-negative opportunistic bacterial pathogen Pseudomonas aeruginosa (PA01, PAKwt, and PAKgfp). Here, we show that anaphylatoxin C5a, formyl-methionyl-leucyl-phenylalanine (fMLP) and phorbol myristate acetate (PMA), which activates NADPH oxidase, induce the release of CFP, CFB, and C3 from neutrophils. In response to PMA or P. aeruginosa, neutrophils secrete CFP, deposit it on NETs and bacteria, and induce the formation of terminal complement complexes (C5b-9). A blocking anti-CFP antibody inhibited AP-mediated but not non-AP-mediated complement activation on NETs and P. aeruginosa. Therefore, NET-mediated complement activation occurs via both AP- and non AP-based mechanisms, and AP-mediated complement activation during NETosis is dependent on CFP. These findings suggest that neutrophils could use their "AP tool kit" to readily activate complement on NETs and Gram-negative bacteria, such as P. aeruginosa, whereas additional components present in the serum help to fix non-AP-mediated complement both on NETs and bacteria. This unique mechanism may play important roles in host defense and help to explain specific roles of complement activation in NET-related diseases.
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Affiliation(s)
- Joshua Yuen
- Cell Biology Program, The Hospital for Sick Children Research Institute, Toronto, ON, Canada; Program in Physiology and Experimental Medicine, The Hospital for Sick Children Research Institute, Toronto, ON, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Fred G Pluthero
- Cell Biology Program, The Hospital for Sick Children Research Institute, Toronto, ON, Canada; Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, ON, Canada
| | - David N Douda
- Program in Physiology and Experimental Medicine, The Hospital for Sick Children Research Institute, Toronto, ON, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Magdalena Riedl
- Cell Biology Program, The Hospital for Sick Children Research Institute , Toronto, ON , Canada
| | - Ahmed Cherry
- Cell Biology Program, The Hospital for Sick Children Research Institute , Toronto, ON , Canada
| | - Marina Ulanova
- Division of Medical Sciences, Northern Ontario School of Medicine, Lakehead University , Thunder Bay, ON , Canada
| | - Walter H A Kahr
- Cell Biology Program, The Hospital for Sick Children Research Institute, Toronto, ON, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada; Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, ON, Canada; Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada; Department of Biochemistry, University of Toronto, Toronto, ON, Canada; Department of Paediatrics, University of Toronto, Toronto, ON, Canada
| | - Nades Palaniyar
- Program in Physiology and Experimental Medicine, The Hospital for Sick Children Research Institute, Toronto, ON, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada; Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
| | - Christoph Licht
- Cell Biology Program, The Hospital for Sick Children Research Institute, Toronto, ON, Canada; Program in Physiology and Experimental Medicine, The Hospital for Sick Children Research Institute, Toronto, ON, Canada; Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada; Department of Paediatrics, University of Toronto, Toronto, ON, Canada; Division of Nephrology, The Hospital for Sick Children, Toronto, ON, Canada
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Yuen J, Bavan L, Graham A. A rare case of multiple subungual glomus tumours in a neurofibromatosis type 1 patient. ACTA ACUST UNITED AC 2015; 20:159-60. [PMID: 25609293 DOI: 10.1142/s0218810415720065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Glomus tumours are uncommon lesions of the digit. They tend to be solitary. Only a small number of multifocal cases have been published, most of which are linked to an underlying genetic disorder. Here we report an unusual case of multifocal glomus tumours in the same hand in a patient suffering from neurofibromatosis type 1.
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Affiliation(s)
- J Yuen
- Department of Trauma and Orthopaedics, Buckinghamshire Healthcare Trust, UK
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Liu J, Yuen J, Kang S. Sleep duration, C-reactive protein and risk of incident coronary heart disease--results from the Framingham Offspring Study. Nutr Metab Cardiovasc Dis 2014; 24:600-605. [PMID: 24548663 DOI: 10.1016/j.numecd.2013.12.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2013] [Revised: 12/12/2013] [Accepted: 12/28/2013] [Indexed: 11/30/2022]
Abstract
BACKGROUND Both sleep-duration and C-reactive protein (CRP) are useful predictors of coronary heart disease (CHD). The increased CRP level is associated with the unusual sleep-duration. However, it is unclear whether CRP impacts the CHD risk prediction of sleep-duration. METHODS AND RESULTS A total of 3381 individuals from the Framingham Offspring Study, aged 30+, CHD-free, and without missing measurement of CRP and sleep-duration and being followed to the end of 2007 were included in this analysis. Hazards ratio (HR) from the Cox regression models was used to evaluate the strength of association between the sleep-duration, CRP levels, and risk of incident CHD. Compared to sleep-duration 7-8 h (n = 2512) after adjusting for age and gender, the HR (95% CL) of incident CHD were 1.42 (1.15, 1.76, p < 0.005) for sleep-duration ≤6 h (n = 588) and 1.23 (0.90, 1.70, p < 0.2) for sleep-duration ≥9 h (n = 281), respectively. A further adjustment for other covariates including CRP did not change the CHD risk association. When subjects were categorized into 9 groups by sleep-duration (≤6, 7-8, and ≥9 h) and CRP levels (<1, 1-3, and ≥3 mg/L), and compared to those whose sleep-duration was 7-8 h and CRP levels were <1 mg/L, the HRs of CHD were similar for sleep-duration in ≤6 h or ≥9 h categories regardless of their CRP levels. The increased CRP levels, however, did show an increased risk for CHD when sleep-duration was 7-8 h CONCLUSION The levels of CRP do not significantly attenuate the association between sleep duration and incident CHD.
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Affiliation(s)
- J Liu
- Brock University, 500 Glenridge Ave., St. Catharines, Ontario L2S 3A1, Canada.
| | - J Yuen
- Brock University, 500 Glenridge Ave., St. Catharines, Ontario L2S 3A1, Canada
| | - S Kang
- University of Toronto, Toronto, Ontario, Canada
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Abstract
Barberry (Berberis spp.) hosts the aecial stage of several rust species, including Puccinia graminis, which causes stem rust on grasses and cereals. The aecial stage of this pathogen has received less attention because it is not as economically important compared with the uredinial and telial stages. The main objective of this study was to identify and describe the rust species that were found on Berberis spp. collected in different parts of Sweden. A morphological study, including spore measurements and aecia descriptions, was conducted, as well as DNA sequence analyses (using the internal transcribed spacer region and the EF1-α gene). Based on spore and aecia morphology as well as the genetic analyses, three different taxa could be distinguished on barberry: P. graminis f. sp. avenae, P. graminis f. sp. tritci/secalis, and P. arrhenatheri. The genetic analysis revealed little or no differentiation between P. graminis f. sp. tritici and P. graminis f. sp. secalis and, thus, this group of samples was denominated P. graminis f. sp. tritici/secalis. Aecial morphology may be used to differentiate between different taxa. In particular, examination of aecial cross-sections may be used to distinguish between P. graminis f. sp. avenae and P. graminis f. sp. tritici/secalis. A clear differentiation in the mode of growth on barberry was also found; P. arrhenatheri always appeared systemic whereas P. graminis always appeared localized.
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Affiliation(s)
- A Berlin
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, SE-750 07 Uppsala, Sweden
| | - J Kyaschenko
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, SE-750 07 Uppsala, Sweden
| | - A F Justesen
- Department of Agroecology, Plant Pathology and Entomology, Aarhus University, 4200, Slagelse, Denmark
| | - J Yuen
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences
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West C, Crawford M, Yuen J, Fallavollita A, Yuen V, McNeill J, Krassioukov A. Hind-limb Exercise Reduces Cardiac Dysfunction in Rats with Complete Spinal Cord Injury. Auton Neurosci 2013. [DOI: 10.1016/j.autneu.2013.05.126] [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: 10/26/2022]
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Abstract
Potato late blight, caused by Phytophthora infestans, is a major disease in potato production throughout the world. In southern Sweden, hairy nightshade (Solanum physalifolium), an alternative non-crop host to the pathogen, is an increasing weed problem. Single-lesion leaves infected by P. infestans were collected from potato and hairy nightshade to determine phenotypic and genotypic population differentiation of P. infestans between the two hosts. Genotypic variation was estimated using microsatellites as markers. The results showed no genotypic differentiation in the samples between the two hosts. Aggressiveness tests were performed using the sampled isolates to cross-inoculate potato and hairy nightshade. The proportion of infected leaves, latency period, lesion growth rate, and sporulation capacity were measured. For isolates from hairy nightshade, the odds of infection were higher on both hosts combined. When tested on potato leaves, isolates from hairy nightshade showed a significantly shorter latency period and higher sporulation capacity compared with isolates from potato. This indicates that an alternative host can filter populations of P. infestans toward a higher aggressiveness, which could lead to increasing problems in controlling potato late blight.
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Affiliation(s)
- L Grönberg
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, P.O. Box 7026, SE-750 07 Uppsala, Sweden.
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25
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Sim A, Ho H, Yuen J, Cheng C. POD-02.06 A Novel Robotic Assisted Prostate Biopsy Device Allows Better Detection and Characterization of Prostate Cancer in Patients with TRUS Biopsy-detected HGPIN. Urology 2011. [DOI: 10.1016/j.urology.2011.07.407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ting DSW, Morlet N, Clark A, Ng JQ, Yuen J, Preen DB. Differences in diabetic retinopathy management by primary eye care providers in Australia. Clin Exp Ophthalmol 2011; 39:585-6. [DOI: 10.1111/j.1442-9071.2010.02489.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: 12/01/2022]
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Abstract
BACKGROUND To survey the current diabetic retinopathy screening and management practices of Australian optometrists following the release of the 1997 National Health Medical Research Council Diabetic Retinopathy Management Guidelines. DESIGN Cross-sectional national survey, primary care setting. PARTICIPANTS 1000 Australian optometrists across different states. METHODS A self-administered questionnaire was sent to 1000 optometrists across all states during 2007/2008. MAIN OUTCOME MEASURES Use of retinal camera, screening practices/attitudes and behaviour in diabetic retinopathy management. RESULTS 568 optometrists (57%) responded to the survey. Patients' unpreparedness to drive post dilation (51%) and the fear of angle closure glaucoma (13%) were the two main barriers to optometrists not performing dilated ophthalmoscopy. Those who had strong desire to screen for diabetic retinopathy were more likely to use a retinal camera (p<0.005). Use of a retinal camera was significantly associated with an increased confidence in detecting clinical signs of diabetic retinopathy including macular oedema (P<0.001). Optometrists who read the guidelines at least once were 2.5-times (P<0.001) more likely to have confidence in detecting macular oedema than those who had never read the guidelines. Although they may be confident in diagnosis, and may use retinal cameras for screening, nearly 60% of optometrists would not refer patients with macular oedema to an ophthalmologist. CONCLUSIONS Despite their self-reported desire for involvement in diabetic retinopathy, the management of macular oedema by Australian optometrists needs improvement. The use of retinal cameras and promotion of the 2008 NHMRC guidelines should be encouraged to improve overall optometric diabetic retinopathy management, particularly with macular oedema.
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Affiliation(s)
- Daniel S W Ting
- Eye and Vision Epidemiology Research Group, Centre for Health Services Research, School of Population Health, University of Western Australia, Australia.
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Ting D, Ng J, Morlet N, Yuen J, Clark A, Taylor H, Keefe J, Preen D. Diabetic retinopathy--screening and management by Australian GPs. Aust Fam Physician 2011; 40:233-238. [PMID: 21597536] [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: 05/30/2023]
Abstract
AIM To describe current diabetic retinopathy (DR) screening and management practices among Australian general practitioners. METHODS A self administered questionnaire on DR management was mailed to 2000 rural and urban GPs across Australia in 2007-2008. RESULTS Only 29% of the GP respondents had read the National Health and Research Council guidelines at least once and 41% had a 'moderate' to 'strong' desire to screen for DR. A majority of GPs (74%) reported not routinely examining their diabetic patients for DR. Lack of confidence in detecting DR changes (86.4%) and time constraints (73.4%) were the two major barriers to GPs performing dilated fundoscopy on diabetic patients. DISCUSSION Given that access to optometry is not evenly distributed across the country, and that ophthalmology is underresourced, GPs are the healthcare providers most able to manage and screen for DR in the community.
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Affiliation(s)
- Daniel Ting
- University of Western Australia and Centre of Ophthalmology and Visual Science, Lions Eye Institute, Perth, Western Australia.
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Yuen J, Clark A, Ng JQ, Morlet N, Keeffe J, Taylor HR, Preen DB. Further survey of Australian ophthalmologist's diabetic retinopathy management: did practice adhere to National Health and Medical Research Council guidelines? Clin Exp Ophthalmol 2010; 38:613-9. [DOI: 10.1111/j.1442-9071.2010.02326.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Myers CL, Hang PC, Ng G, Yuen J, Honek JF. Semi-synthetic analogues of thiostrepton delimit the critical nature of tail region modifications in the control of protein biosynthesis and antibacterial activity. Bioorg Med Chem 2010; 18:4231-7. [PMID: 20510619 DOI: 10.1016/j.bmc.2010.04.098] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2010] [Revised: 04/24/2010] [Accepted: 04/30/2010] [Indexed: 11/27/2022]
Abstract
We report the successful production of selectively-modified tail analogues of the natural product antibiotic thiostrepton, which have been used to evaluate the critical nature of this section of the antibiotic to its inhibition of protein synthesis. This work highlights the tail region as a critical area for future semi-synthetic or synthetically bioengineered thiostrepton derivatives.
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Affiliation(s)
- Cullen L Myers
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
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Lee L, Yuen J, Sim H. UP-2.079: Renal Cell Carcinoma in Patients Under 40 Years of Age Has a Poorer Prognosis. Urology 2009. [DOI: 10.1016/j.urology.2009.07.298] [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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Herrera-Foessel SA, Singh RP, Huerta-Espino J, William HM, Djurle A, Yuen J. Molecular Mapping of a Leaf Rust Resistance Gene on the Short Arm of Chromosome 6B of Durum Wheat. Plant Dis 2008; 92:1650-1654. [PMID: 30764291 DOI: 10.1094/pdis-92-12-1650] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Leaf rust, caused by Puccinia triticina, is an important disease of durum wheat (Triticum turgidum subsp. durum) worldwide, and the most effective way to control it is through the use of resistant cultivars. A partially dominant leaf rust resistance gene present in the International Maize and Wheat Improvement Center-derived Chilean cv. Guayacan INIA and its sister line Guayacan 2 was mapped to chromosome arm 6BS by identifying linked amplified fragment length polymorphisms (AFLPs) and mapping two of the molecular markers in common wheat (T. aestivum) linkage maps of the International Triticeae Mapping Initiative and Oligoculm × Fukuho-komugi populations. Comparison of infection type responses of the two resistant durums with common wheat testers carrying the previously mapped resistance genes Lr36 and Lr53 on 6BS, and their chromosomal positions, indicated that the resistance gene in durum wheat Guayacan INIA is a new leaf rust resistance gene, which was designated as Lr61. Gene Lr61 is effective against the P. triticina race BBG/BN predominant in northwestern Mexico and other races infecting durum wheat in various countries.
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Affiliation(s)
- S A Herrera-Foessel
- Department of Forest Mycology and Pathology, Swedish University of Agricultural Sciences (SLU), Box 7026, S 750 07 Uppsala, Sweden
| | - R P Singh
- International Maize and Wheat Improvement Center (CIMMYT), Apdo. Postal 6-641, 06600 Mexico, D.F., Mexico
| | - J Huerta-Espino
- Campo Experimental Valle de México INIFAP, Apdo. Postal 10, 56230, Chapingo, Edo de Mexico, Mexico
| | | | - A Djurle
- Department of Forest Mycology and Pathology, SLU, Sweden
| | - J Yuen
- Department of Forest Mycology and Pathology, SLU, Sweden
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Herrera-Foessel SA, Singh RP, Huerta-Espino J, William HM, Garcia V, Djurle A, Yuen J. Identification and Molecular Characterization of Leaf Rust Resistance Gene Lr14a in Durum Wheat. Plant Dis 2008; 92:469-473. [PMID: 30769688 DOI: 10.1094/pdis-92-3-0469] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Leaf rust, caused by Puccinia triticina, is an important disease of durum wheat (Triticum turgidum subsp. durum) and only a few designated resistance genes are known to occur in this crop. A dominant leaf rust resistance gene in the Chilean durum cv. Llareta INIA was mapped to chromosome arm 7BL through bulked segregant analysis using the amplified fragment length polymorphism (AFLP) technique, and by mapping three polymorphic markers in the common wheat (T. aestivum) International Triticeae Mapping Initiative population. Several simple sequence repeat (SSR) markers, including Xgwm344-7B and Xgwm146-7B, were associated with the leaf rust resistance gene. Resistance response and chromosomal position indicated that this gene is likely to be Lr14a. The SSR markers Xgwm344-7B and Xgwm146-7B and one AFLP marker also differentiated common wheat cv. Thatcher from the near-isogenic line with Lr14a, as well as durum 'Altar C84' from durum wheat with Lr14a. This is the first report of the presence of Lr14a in durum wheat, although the gene originally was transferred from emmer wheat 'Yaroslav' to common wheat. Lr14a is also present in CIMMYT-derived durum 'Somateria' and effective against Mexican and other P. triticina races of durum origin. Lr14a should be deployed in combination with other effective leaf rust resistance genes to prolong its effectiveness in durum wheat.
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Affiliation(s)
- S A Herrera-Foessel
- Department of Forest Mycology and Pathology, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden
| | - R P Singh
- International Maize and Wheat Improvement Center (CIMMYT), Mexico, D.F., Mexico
| | - J Huerta-Espino
- Campo Experimental Valle de México INIFAP, Chapingo, Edo de Mexico, Mexico
| | | | | | - A Djurle
- Dept. of Forest Mycology and Pathology, SLU, Uppsala, Sweden
| | - J Yuen
- Dept. of Forest Mycology and Pathology, SLU, Uppsala, Sweden
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Shapiro LG, Atmosukarto I, Cho H, Lin HJ, Ruiz-Correa S, Yuen J. Similarity-Based Retrieval for Biomedical Applications. Case-Based Reasoning on Images and Signals 2008. [DOI: 10.1007/978-3-540-73180-1_12] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Fabre F, Plantegenest M, Yuen J. Financial benefit of using crop protection decision rules over systematic spraying strategies. Phytopathology 2007; 97:1484-1490. [PMID: 18943519 DOI: 10.1094/phyto-97-11-1484] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
ABSTRACT Decision rule models are considered to be one of the main cornerstones of the implementation of integrated pest management (IPM) programs. Even if the need for such programs to offer cost advantages over conventional strategies is a major incentive for IPM adoption, few studies focus on this financial dimension. In this article, a modeling approach of the response of a pathosystem to a disease control method and of the predictive performance of decision rules is used to explore how some basic factors act on the likelihood of adoption of decision rule models strategies (such as using an IPM system) over systematic strategies (such as systematic-spraying and never-spraying strategies). Even if the average cost of using the decision rule strategies is always lower than the average cost of systematic strategies in several different scenarios, the models developed here showed strong effects of different pathosystems and decision rules on financial benefits. The number of production situations where decision rules are of interest is highly correlated with their accuracy. However, because of the inescapable trade-offs between decision rule accuracy and limiting factors such as its user-friendly characteristics, the use of decision rules is unlikely to reduce costs to <70% of the costs of systemic strategies. In more general terms, this study provides quantitative guidelines on the financial advantage that decision rules can offer in plant protection as well as a better understanding of their potential usefulness.
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Ho H, Mohan P, Li D, Yuen J, Ng W, Lau W, Cheng C. POS-03.84: Robotic assisted transperineal saturation prostate biopsy in men with previous negative biopsy: comparison with transrectal approach. Urology 2007. [DOI: 10.1016/j.urology.2007.06.975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Landers J, Tan TH, Yuen J, Liu H. Comparison of visual function following implantation of Acrysof Natural intraocular lenses with conventional intraocular lenses. Clin Exp Ophthalmol 2007; 35:152-9. [PMID: 17362457 DOI: 10.1111/j.1442-9071.2006.01434.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Recently an intraocular lens (IOL) has been introduced which blocks blue light. As blocking blue light may be to the patient's detriment, this study was designed to evaluate visual function following implantation of a blue-blocking (Acrysof Natural) IOL. METHODS Patients were recruited for this non-randomized controlled interventional study, from those attending a private rural ophthalmology clinic for cataract surgery (n = 93). Only those who had previously had a conventional IOL implanted into one eye were offered an Acrysof Natural IOL for the second eye. Postoperatively patients underwent refracted Snellen visual acuity, contrast sensitivity using a CSV-1000E instrument and colour vision testing using a Farnsworth D-15 test, with a subset (n = 20) undergoing a Farnsworth-Munsell 100-Hue test. Results were then compared between eyes. Finally, a subset (n = 63) completed a survey designed to assess the subjective impact of the Acrysof Natural IOL. RESULTS There were no statistically significant differences between eyes implanted with conventional IOLs compared with Acrysof Natural IOLs for visual acuity (t = 0.57; P = 0.57), contrast sensitivity (t = 0.43; P = 0.67 for 3 cycles per degree [cpd], t = 0.56; P = 0.58 for 6 cpd, t = 0.09; P = 0.93 for 12 cpd and t = 0.16; P = 0.87 for 18 cpd) or colour vision with the Farnsworth D-15 (Chi(2) = 0.38; P = 0.55) or the Farnsworth-Munsell 100-Hue test t = 0.34; P = 0.74). Most subjects reported that they could not tell a difference between the two IOLs subjectively or that any difference experienced was not significant. CONCLUSION Our sample did not show any significant differences between eyes implanted with conventional IOLs and the Acrysof Natural IOL. We would suggest that the Acrysof Natural IOL may be used without any significant difference in visual function.
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Affiliation(s)
- John Landers
- Orana Eye Centre, Dubbo, New South Wales, Australia.
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Mohan P, Ho H, Yuen J, Ng WS, Cheng WS. A 3D computer simulation to study the efficacy of transperineal versus transrectal biopsy of the prostate. Int J Comput Assist Radiol Surg 2007. [DOI: 10.1007/s11548-007-0069-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Yuen J, Rodrigues G, Trenka K, Coad T, Yartsev S, Lock M, Bauman G. 2840. Int J Radiat Oncol Biol Phys 2006. [DOI: 10.1016/j.ijrobp.2006.07.1258] [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]
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Gonzales R, Glik D, Prelip M, Bourque L, Yuen J, Ang A, Jones M. Risk perceptions and behavioral intentions for Hepatitis B: how do young adults fare? Health Educ Res 2006; 21:654-61. [PMID: 16945982 DOI: 10.1093/her/cyl047] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Young adults are at risk for Hepatitis B infection. Little is known about their attitudes and beliefs concerning Hepatitis B, which are determinants of getting immunized. This investigation examined risk perceptions and behavioral intentions concerning Hepatitis B among a convenience sample of 1070 young adults, 18-24 years old who participated in a Hepatitis B campaign that aired a prevention-based advertisement in movies. The campaign did not produce any significant effects. Therefore, analyses presented in this paper explored whether risk perceptions and intentions vary by sociodemographic characteristics. Most young adults do not perceive themselves to be at risk for Hepatitis B, but perceive other people to be at risk. Gender and ethnic differences in behavioral intentions to seek out Hepatitis B information were also observed. This study offers insight about important factors to consider when designing Hepatitis B prevention interventions for young adults and suggests that increasing health-promotion efforts for this group, while accounting for differences in age, culture and gender, are warranted.
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Affiliation(s)
- Rm Gonzales
- School of Public Health, University of California, Los Angeles, Los Angeles, CA 90095, USA.
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Yuen J, Batchelar D, D'Souza D, Karnas S. 130 3D Image-based treatment planning in cervix cancer brachytherapy: The use of CT imaging in assessing dose parameters. Radiother Oncol 2006. [DOI: 10.1016/s0167-8140(06)80871-6] [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: 10/23/2022]
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Yuen J, Rodrigues G, Trenka K, Coad T, Yartsev S, Lock M, Bauman G. 82 Comparing two strategies of dynamic intensity modulated radiation therapy using helical tomotherapy versus 3D conformal radiation therapy in the hypofractionated treatment of the pelvis in high risk prostate cancer. Radiother Oncol 2006. [DOI: 10.1016/s0167-8140(06)80823-6] [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: 11/26/2022]
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Murray T, Derrah L, D'Souza D, Yuen J, Batchelar D, Kwon J, Sugimoto A, Carey M, Lock M. 156 Gynaecologic HDR Interstitial Brachytherapy: The Role of Radiation Oncology Nursing in Multi-disciplinary Care. Radiother Oncol 2006. [DOI: 10.1016/s0167-8140(06)80897-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yuen J, Gaede S, Yartsev S, Yu E. 83 Comparing helical tomotherapy, step and shoot intensity modulated radiation therapy, and traditional conformal radiation therapy using four-dimensional computed tomography and respiratory gating to treat early stage non small cell lung cancer. Radiother Oncol 2006. [DOI: 10.1016/s0167-8140(06)80824-8] [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]
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Herrera-Foessel SA, Singh RP, Huerta-Espino J, Crossa J, Yuen J, Djurle A. Effect of Leaf Rust on Grain Yield and Yield Traits of Durum Wheats with Race-Specific and Slow-Rusting Resistance to Leaf Rust. Plant Dis 2006; 90:1065-1072. [PMID: 30781301 DOI: 10.1094/pd-90-1065] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Leaf rust, caused by Puccinia triticina, is an important disease of durum wheat (Triticum turgidum) in many countries. We compared the effectiveness of different types of resistance in International Maize and Wheat Improvement Center-derived durum wheat germ plasm for protecting grain yield and yield traits. In all, 10 durum wheat lines with race-specific resistance, 18 with slow-rusting resistance, and 2 susceptible were included in two yield loss trials sown on different planting dates in Mexico with and without fungicide protection under high disease pressure. Eight genotypes with race-specific resistance were immune to leaf rust. Durum wheat lines with slow-rusting resistance displayed a range of severity responses indicating phenotypic diversity. Mean yield losses for susceptible, race-specific, and slow-rusting genotypes were 51, 5, and 26%, respectively, in the normal sowing date trial and 71, 11, and 44% when sown late. Yield losses were associated mainly with a reduction in biomass, harvest index, and kernels per square meter. Slow-rusting durum wheat lines with low disease levels and low yield losses, as well as genotypes with low yield losses despite moderate disease levels, were identified. Such genotypes can be used for breeding durum wheat genotypes with higher levels of resistance and negligible yield losses by using strategies that previously have been shown to be successful in bread wheat.
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Affiliation(s)
- S A Herrera-Foessel
- Department of Forest Mycology and Pathology, Swedish University of Agricultural Sciences (SLU), Box 7026, S 750 07 Uppsala, Sweden
| | - R P Singh
- International Maize and Wheat Improvement Center (CIMMYT), Apdo. Postal 6-641, 06600 México, D.F., México
| | - J Huerta-Espino
- Campo Experimental Valle de México INIFAP, Apdo. Postal 10, 56230, Chapingo, Edo de México, México
| | | | - J Yuen
- Department of Forest Mycology and Pathology, SLU, Sweden
| | - A Djurle
- Department of Forest Mycology and Pathology, SLU, Sweden
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Ng KK, Poon RT, Lam CM, Yuen J, Tso WK, Fan ST. Efficacy and safety of radiofrequency ablation for perivascular hepatocellular carcinoma without hepatic inflow occlusion. Br J Surg 2006; 93:440-7. [PMID: 16470712 DOI: 10.1002/bjs.5267] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND The role of radiofrequency ablation (RFA) for perivascular (up to 5 mm from the major intrahepatic portal vein or hepatic vein branches) hepatocellular carcinoma (HCC) is unclear because of possible incomplete tumour ablation and potential vascular damage. This study aimed to evaluate the safety and efficacy of RFA for perivascular HCC without hepatic inflow occlusion. METHODS Between May 2001 and November 2003, RFA using an internally cooled electrode was performed on 52 patients with perivascular HCC (group 1) through open (n = 39), percutaneous (n = 9), laparoscopic (n = 2) and thoracoscopic (n = 2) approaches. Hepatic inflow occlusion was not applied during the ablation procedure. The perioperative and postoperative outcomes were compared with those of 90 patients with non-perivascular HCC (group 2) treated by RFA during the same period. RESULTS The morbidity rate was similar between groups 1 and 2 (25 versus 28 per cent; P = 0.844). One patient in group 1 (2 per cent) and two in group 2 (2 per cent) had developed thrombosis of major intrahepatic blood vessels on follow-up computed tomography scan. There were no significant differences between groups 1 and 2 in mortality rate (2 versus 0 per cent; P = 0.366), complete ablation rate for small HCC (92 versus 98 per cent; P = 0.197), local recurrence rate (11 versus 9 per cent; P = 0.762) and overall survival (1-year: 86 versus 87 per cent; 2-year: 75 versus 75 per cent; P = 0.741). CONCLUSION RFA without hepatic inflow occlusion is a safe and effective treatment for perivascular HCC.
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Affiliation(s)
- K K Ng
- Centre for the Study of Liver Disease, Department of Surgery, The University of Hong Kong, Pokfulam, Hong Kong, China.
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Ackland SP, Jones M, Tu D, Simes J, Yuen J, Sargeant AM, Dhillon H, Goldberg RM, Abdi E, Shepherd L, Moore MJ. A meta-analysis of two randomised trials of early chemotherapy in asymptomatic metastatic colorectal cancer. Br J Cancer 2006; 93:1236-43. [PMID: 16265352 PMCID: PMC2361520 DOI: 10.1038/sj.bjc.6602841] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
This report constitutes a prospectively planned meta-analysis combining two almost identical trials undertaken in Australasia and Canada to study the effect of starting chemotherapy immediately in asymptomatic patients with metastatic colorectal cancer. Patients (n=168) were randomised to receive either immediate or delayed treatment (at onset of predefined symptoms). Australasian patients received either weekly 5-fluorouracil and leucovorin (500 and 20 mg m(-2), respectively) (n=59) or the daily x 5 Mayo Clinic schedule (425 and 20 mg m(-2), respectively) (n=42). Canadian patients were treated with the Mayo schedule (n=67). Otherwise, the two studies were almost identical in design and each used the European Organisation for the Research and Treatment of Cancer (EORTC) QLQ-C30 instrument for measuring quality of life (QoL). Treatment was continued until 6 months had elapsed or disease progression occurred. Low accrual led to trial suspension before the predetermined sample size for either study was reached. Median survival was not significantly better with immediate treatment (median 13.0 vs 11.0 months; hazard ratio, 1.15; 95% confidence interval (CI) 0.79-1.72; P=0.49). There was no statistically significant difference in progression-free survival (time from randomisation until first evidence of progression after chemotherapy, 10.2 vs 10.8 months; hazard ratio, 1.08; 95% CI 0.71-1.64; P=0.73). There was no difference in overall QoL or its individual domains between the two treatment strategies at baseline or at any subsequent time point. Early treatment of asymptomatic patients with metastatic colorectal cancer did not provide a survival benefit or improved QoL compared to withholding treatment until symptoms occurred.
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Affiliation(s)
- S P Ackland
- Australasian Gastro-Intestinal Trials Group, NSW Clinical Oncology Group, Camperdown, NSW 1450, Australia.
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Karlson BM, Ekbom A, Arvidsson D, Yuen J, Krusemot UB. Population-based study of cancer risk and relative survival following sphincterotomy for stones in the common bile duct. Br J Surg 2005. [DOI: 10.1046/j.1365-2168.1997.02773.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Olsen JH, Hahnemann JMD, Børresen-Dale AL, Tretli S, Kleinerman R, Sankila R, Hammarström L, Robsahm TE, Kääriäinen H, Bregård A, Brøndum-Nielsen K, Yuen J, Tucker M. Breast and other cancers in 1445 blood relatives of 75 Nordic patients with ataxia telangiectasia. Br J Cancer 2005; 93:260-5. [PMID: 15942625 PMCID: PMC2361547 DOI: 10.1038/sj.bjc.6602658] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Epidemiological studies have consistently shown elevated rates of breast cancer among female blood relatives of patients with ataxia telangiectasia (AT), a rare autosomal recessive disease. A large proportion of the members of AT families are carriers of AT-causing gene mutations in ATM (Ataxia Telangiectasia Mutated), and it has been hypothesised that these otherwise healthy carriers are predisposed to breast cancer. This is an extended and enlarged follow-up study of cancer incidence in blood relatives of 75 patients with verified AT in 66 Nordic families. Blood relatives were identified through population registry linkages, and the occurrence of cancer was determined from cancer registry files in each country and compared with national incidence rates. The ATM mutation carrier probabilities of relatives were assigned from the combined information on location in family, consanguinity, if any, and supplementary carrier screening in some families. Among the 1445 blood relatives of AT patients, 225 cancers were observed, with 170.4 expected, yielding a standardised incidence ratio (SIR) of 1.3 (95% confidence interval (CI), 1.1-1.4). Invasive breast cancer occurred in 34 female relatives (SIR, 1.7; 95% CI, 1.2-2.4) and was diagnosed in 21 women before the age of 55 years (SIR, 2.9; 95% CI, 1.8-4.5), including seven mothers of probands (SIR, 8.1; 95% CI, 3.3-17). When the group of mothers was excluded, no clear relationship was observed between the allocated mutation carrier probability of each family member and the extent of breast cancer risk. We concluded that the increased risk for female breast cancer seen in 66 Nordic AT families appeared to be restricted to women under the age of 55 years and was due mainly to a very high risk in the group of mothers. The findings of breast cancer risk in mothers, but not other likely mutation carriers, in this and other studies raises questions about the hypothesis of a simple causal relationship with ATM heterozygosity.
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Affiliation(s)
- J H Olsen
- Institute of Cancer Epidemiology, Danish Cancer Society, Strandboulevarden 49, DK-2100 Copenhagen.
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Abstract
Leaf rust, caused by Puccinia triticina, has become an important disease of durum wheat (Triticum turgidum) in Mexico since the detection in 2001 of BBG/BN, a new race virulent on all common cultivars and on more than 80% of CIMMYT's durum wheat collection. We investigated the genetic basis and diversity of resistance in nine durum genotypes that are highly resistant to the new race. These resistant durums were crossed with the susceptible cv. Atil C2000 and intercrossed in a half diallel arrangement. Five diverse sources of resistance were identified by evaluating parents, F1, F2, and F3 populations in greenhouse and/or field trials under artificial epidemics of race BBG/BN. The same pair of partially dominant complementary genes determined resistance in Jupare C2001, Hualita, and Pohowera. Somateria and Llareta INIA shared the same dominant resistance gene, whereas a partially dominant gene conferred resistance in two sister lines, Guayacan 2 and Guayacan INIA. A different partially dominant gene present in Storlom was linked in repulsion to another partially dominant gene in Camayo. These diverse resistance genes can be used effectively to control leaf rust, preferably by deploying them in combinations.
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Affiliation(s)
- S A Herrera-Foessel
- Dept. of Ecology and Crop Production Sciences, Swedish University of Agricultural Sciences (SLU), Box 7043, S 750 07 Uppsala, Sweden
| | - R P Singh
- International Maize and Wheat Improvement Center (CIMMYT), Apdo. Postal 6-641, 06600 México, D.F., México
| | - J Huerta-Espino
- Campo Experimental Valle de México INIFAP, Apdo. Postal 10, 56230, Chapingo, Edo de México, México
| | - J Yuen
- Dept. of Ecology and Crop Production Sciences, Swedish University of Agricultural Sciences (SLU), Box 7043, S 750 07 Uppsala, Sweden
| | - A Djurle
- Dept. of Ecology and Crop Production Sciences, Swedish University of Agricultural Sciences (SLU), Box 7043, S 750 07 Uppsala, Sweden
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