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Gonzalez-Pereira JP, Johnson CJ, Wells S, Bushman W, Roldan-Alzate A. Technical feasibility of uro-dynamic MRI study of voiding biomechanics: a pilot study. Int Urol Nephrol 2024; 56:893-899. [PMID: 37823972 DOI: 10.1007/s11255-023-03823-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 09/25/2023] [Indexed: 10/13/2023]
Abstract
INTRODUCTION Dynamic volumetric MRI was used to non-invasively assess voiding biomechanics in a healthy male volunteer. METHODS Using 3D Differential Subsampling with Cartesian Ordering (DISCO) Flex acquisition sequence, volumetric bladder images were obtained throughout the voiding effort. These were subsequently segmented using MIMICS. Segmented anatomical volumes were used to quantify total voided volume, post-void residual, volumetric displacement of urine over time, bladder neck angle, sphericity index, and prostatic urethral angle through the voiding effort. RESULTS Bladder sphericity index correlated positively with flow rate. The greatest degree of bladder neck funneling correlated with the maximum urine flow rate. There was straightening of the prostatic urethral angle during voiding that also correlated positively with urine flow. CONCLUSION This pilot study confirms the potential of dynamic MRI to provide non-invasive assessment of lower urinary tract anatomy and biomechanics during voiding.
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Affiliation(s)
| | - Cody John Johnson
- Department of Radiology, University of Wisconsin-Madison, Madison, USA
| | - Shane Wells
- Department of Radiology, University of Wisconsin-Madison, Madison, USA
| | - Wade Bushman
- Department of Urology, University of Wisconsin-Madison, Madison, USA
| | - Alejandro Roldan-Alzate
- Department of Mechanical Engineering, Department of Radiology, Department of Biomedical Engineering and Department of Urology, University of Wisconsin-Madison, Madison, USA.
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Campbell G, Wells S, Huang W, Cooley GM, Jarrard D, Kyriakopoulos C, Cho SY, Lang J, Floberg JM. Disease and Toxicity Outcomes after Salvage Radiotherapy (SRT) for Biochemically Recurrent Prostate Cancer (PC) for Patients Enrolled in a Phase II, Open Label Trial Investigating Neoadjuvant Chemohormonal Therapy Followed by Radical Prostatectomy (RP). Int J Radiat Oncol Biol Phys 2023; 117:e369. [PMID: 37785259 DOI: 10.1016/j.ijrobp.2023.06.2466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Men with metastatic hormone sensitive prostate cancer have improved progression free and overall survival (PFS/OS) when treated with docetaxel and androgen deprivation therapy (ADT). Our institution conducted a phase II trial (UW17009) investigating the addition of three cycles of neoadjuvant docetaxel and ADT to RP in men with high-risk prostate cancer. Here we report toxicity and freedom from biochemical recurrence (FFBCR) for patients treated with SRT following participation in this trial. MATERIALS/METHODS Between January 17, 2018 and August 10, 2021, 28 patients enrolled on UW17009. Patients who had a recurrence and received SRT were identified. Toxicity was assessed using modified LENT (Late Effects of Normal Tissues)/RTOG (Radiation Therapy Oncology Group) criteria, and time to recurrence following SRT was determined for each patient. Additionally, the months of ADT received by each patient was recorded. FFBCR was then determined for this cohort using the method of Kaplan and Meier. RESULTS Of 28 patients enrolled on UW17009, 20 (71%) had BCR after RP. Of these, 19 received SRT, representing 68% of the patients enrolled on the trial. The rates of acute grade 1 and grade 2 GU toxicity with SRT were 37% (7) and 53% (10), respectively. The rates of acute grade 1 and grade 2 GI toxicity with SRT were 32% (6) and 37% (7), respectively. On patient experienced a grade 4 genitourinary toxicity during SRT. There were no acute grade 3 or grade 5 toxicities. The rates of late grade 1 and grade 2 GU toxicity were 16% (3) and 11% (2), respectively. The rates of late grade 1 and grade 2 GI toxicity were 11% (2) and 5% (1), respectively. There was 1 (5%) late grade 3 GU toxicity. There were no late grade 3-5 GI toxicities, or late grade 4-5 GU toxicities. The average duration of ADT after prostatectomy was 15 months (range: 0-37 months). According to the method of Kaplan and Meier, mean FFBCR after SRT was 34.0 months at a median of 37.8 months. Median FFBCR had not yet been reached. At the time of analysis, 13 patients remained free from biochemical recurrence after SRT. CONCLUSION Rates of biochemical recurrence and SRT following neoadjuvant docetaxel and ADT and then RP were consistent with historical data, as was the rate of successful SRT. Toxicities were also consistent with historical data, though there was notably one acute grade 4 GU toxicity.
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Affiliation(s)
- G Campbell
- University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - S Wells
- Department of Radiology, University of Wisconsin Hospitals & Clinics, Madison, WI
| | - W Huang
- University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - G M Cooley
- Department of Human Oncology, University of Wisconsin Hospital and Clinics, Madison, WI
| | - D Jarrard
- Department of Urology, University of Wisconsin Hospitals and Clinics, Madison, WI
| | - C Kyriakopoulos
- Department of Human Oncology, University of Wisconsin Hospital and Clinics, Madison, WI
| | - S Y Cho
- Department of Radiology, University of Wisconsin Hospitals and Clinics, Madison, WI
| | - J Lang
- University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - J M Floberg
- University of Wisconsin School of Medicine and Public Health, Madison, WI
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Arunachalampillai A, Chandrappa P, Cherney A, Crockett R, Doerfler J, Johnson G, Kommuri VC, Kyad A, McManus J, Murray J, Myren T, Fine Nathel N, Ndukwe I, Ortiz A, Reed M, Rui H, Silva Elipe MV, Tedrow J, Wells S, Yacoob S, Yamamoto K. Atroposelective Brønsted Acid-Catalyzed Photocyclization to Access Chiral N-Aryl Quinolones with Low Rotational Barriers. Org Lett 2023; 25:5856-5861. [PMID: 37499637 DOI: 10.1021/acs.orglett.3c02117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Herein, a novel route to atropisomeric N-aryl quinolones with low rotational barriers is demonstrated, leveraging a dual photochemical/organocatalytic approach to the required ring closure in up to 94% yield and up to >99% ee. The use of a continuous flow system allows for impurity suppression and enables rapid scale-up to a decagram scale.
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Affiliation(s)
| | | | - Alan Cherney
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Richard Crockett
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Jaika Doerfler
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Gregory Johnson
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | | | - Ali Kyad
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Joshua McManus
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - James Murray
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Tessa Myren
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Noah Fine Nathel
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Ikenna Ndukwe
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Adrian Ortiz
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Margaret Reed
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Huan Rui
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | | | - Jason Tedrow
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Shane Wells
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Suha Yacoob
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Kumiko Yamamoto
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
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Thaggard S, Reid S, Chan A, White C, Fraser L, Arroll BA, Best E, Whittaker R, Wells S, Thomas MG, Ritchie SR. Whānau Māori and Pacific peoples' knowledge, perceptions, expectations and solutions regarding antibiotic treatment of upper respiratory tract infections: a qualitative study. BMC Infect Dis 2023; 23:458. [PMID: 37430196 DOI: 10.1186/s12879-023-08431-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 06/28/2023] [Indexed: 07/12/2023] Open
Abstract
INTRODUCTION The rate of community antibiotic use is high in Aotearoa New Zealand (NZ) when compared to other nations, and in NZ, as in most other nations, antibiotics are very commonly prescribed for self-limiting upper respiratory tract infections (URTIs). Resources that build knowledge, perceptions and understanding can potentially reduce unnecessary antibiotic consumption. METHODS To inform the content of educational resources, we conducted an in-depth qualitative study with 47 participants via 6 focus groups of the knowledge, attitudes, and expectations of whānau Māori and Pacific peoples about antibiotics and URTIs. RESULTS Focus groups with 47 participants identified four themes: Knowledge that might influence expectations to receive antibiotics for URTIs; Perceptions - the factors that influence when and why to seek medical care for URTI; Expectations - the features of successful medical care for URTI; Solutions - how to build community knowledge about URTI and their treatment and prevention. Knowledge that might reduce expectations to receive antibiotics for URTI included confidence in the use of alternative remedies, knowledge that URTI are usually caused by viruses, and concerns about antibiotic adverse effects. Participants commonly reported that they would confidently accept their doctor's recommendation that an antibiotic was not necessary for an URTI, provided that a thorough assessment had been performed and that treatment decisions were clearly communicated. CONCLUSION These findings suggest that building patients' knowledge and skills about when antibiotics are necessary, and increasing doctors' confidence and willingness not to prescribe an antibiotic for patients with an URTI, could significantly reduce inappropriate antibiotic prescribing in NZ.
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Affiliation(s)
- S Thaggard
- Nursing Department, Auckland University of Technology, Auckland, New Zealand
| | - S Reid
- Health Literacy NZ, Auckland, New Zealand
| | - Ahy Chan
- Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - C White
- Health Literacy NZ, Auckland, New Zealand
| | - L Fraser
- Turuki Health Care, Auckland, New Zealand
| | - B A Arroll
- Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - E Best
- Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - R Whittaker
- Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - S Wells
- Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - M G Thomas
- Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - S R Ritchie
- Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand.
- 502-301E Infection and Immunity, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland, Auckland, Private Bag, 92019, New Zealand.
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Mitra J, Bhushan C, Ghose S, Mills D, Chan H, Tarasek M, Foo T, Wells S, Jupitz S, Bednarz B, Brace C, Holmes J, Yeo D. Abstract No. 49 Motion Compensation in 3D MRI-US Fusion Using Fast Deformable Registration: A Feasibility Study for Real-Time Intervention. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.092] [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: 02/27/2023] Open
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Martin M, Wells S, Chen J. MITRAL VALVE CHORDAE TENDINEAE DEVELOP INDEPENDENTLY FROM LEAFLET TISSUE DURING FETAL DEVELOPMENT. Can J Cardiol 2022. [DOI: 10.1016/j.cjca.2022.08.032] [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] Open
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Baliga S, Klamer B, Palmer J, Wells S, Gamez M, Jhawar S, Mitchell D, Grecula J, Kang S, Seim N, Ozer E, Agrawal A, VanKoevering K, Karivedu V, Bhateja P, Bonomi M, Old M, Rocco J, Carrau R, Blakaj D. Defining the Psychiatric and Financial Landscape of Mental and Substance Use Disorders in Head and Neck Cancer Patients. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2021.12.125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Raaijmakers A, Curl C, Wells S, Delbridge L, Bell J. Greater Cardiac Adiposity is Associated With Diastolic Dysfunction and Cardiomyocyte Lipid Accumulation in Rodents. Heart Lung Circ 2022. [DOI: 10.1016/j.hlc.2022.06.540] [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: 10/16/2022]
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Birling MC, Fray MD, Kasparek P, Kopkanova J, Massimi M, Matteoni R, Montoliu L, Nutter LMJ, Raspa M, Rozman J, Ryder EJ, Scavizzi F, Voikar V, Wells S, Pavlovic G, Teboul L. Importing genetically altered animals: ensuring quality. Mamm Genome 2021; 33:100-107. [PMID: 34536110 PMCID: PMC8913481 DOI: 10.1007/s00335-021-09908-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 08/26/2021] [Indexed: 11/30/2022]
Abstract
The reproducibility of research using laboratory animals requires reliable management of their quality, in particular of their genetics, health and environment, all of which contribute to their phenotypes. The point at which these biological materials are transferred between researchers is particularly sensitive, as it may result in a loss of integrity of the animals and/or their documentation. Here, we describe the various aspects of laboratory animal quality that should be confirmed when sharing rodent research models. We also discuss how repositories of biological materials support the scientific community to ensure the continuity of the quality of laboratory animals. Both the concept of quality and the role of repositories themselves extend to all exchanges of biological materials and all networks that support the sharing of these reagents.
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Affiliation(s)
- M-C Birling
- PHENOMIN-Institut Clinique de la Souris, CELPHEDIA, CNRS, INSERM, Université de Strasbourg, Illkirch-Graffenstaden, 67404, Strasbourg, France.
| | - M D Fray
- The Mary Lyon Centre, Medical Research Council Harwell, Harwell Campus, Didcot, OX11 0RD, Oxon, UK
| | - P Kasparek
- Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Vestec, Czech Republic
| | - J Kopkanova
- Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Vestec, Czech Republic
| | - M Massimi
- Institute of Biochemistry and Cell Biology, Italian National Research Council (CNR), Monterotondo Scalo, Rome, Italy
| | - R Matteoni
- Institute of Biochemistry and Cell Biology, Italian National Research Council (CNR), Monterotondo Scalo, Rome, Italy
| | - L Montoliu
- Department of Molecular and Cellular Biology, National Centre for Biotechnology (CNB-CSIC) Madrid and CIBERER-ISCIII, Madrid, Spain
| | - L M J Nutter
- The Centre for Phenogenomics, The Hospital for Sick Children, Toronto, ON, Canada
| | - M Raspa
- Institute of Biochemistry and Cell Biology, Italian National Research Council (CNR), Monterotondo Scalo, Rome, Italy
| | - J Rozman
- Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Vestec, Czech Republic
| | - E J Ryder
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, UK.,LGC, Sport and Specialised Analytical Services, Fordham, UK
| | - F Scavizzi
- Institute of Biochemistry and Cell Biology, Italian National Research Council (CNR), Monterotondo Scalo, Rome, Italy
| | - V Voikar
- Neuroscience Center and Laboratory Animal Center, Helsinki Institute of Life Science (HiLIFE), University of Helsinki, Helsinki, Finland
| | - S Wells
- The Mary Lyon Centre, Medical Research Council Harwell, Harwell Campus, Didcot, OX11 0RD, Oxon, UK
| | - G Pavlovic
- PHENOMIN-Institut Clinique de la Souris, CELPHEDIA, CNRS, INSERM, Université de Strasbourg, Illkirch-Graffenstaden, 67404, Strasbourg, France.
| | - L Teboul
- The Mary Lyon Centre, Medical Research Council Harwell, Harwell Campus, Didcot, OX11 0RD, Oxon, UK.
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Blitzer GC, Wojcieszynski A, Abel EJ, Best S, Lee FT, Hinshaw JL, Wells S, Ziemlewicz TJ, Lubner MG, Alexander M, Yadav P, Bayouth JE, Floberg J, Cooley G, Harari PM, Bassetti MF. Combining Stereotactic Body Radiotherapy and Microwave Ablation Appears Safe and Feasible for Renal Cell Carcinoma in an Early Series. Clin Genitourin Cancer 2021; 19:e313-e318. [PMID: 34024743 DOI: 10.1016/j.clgc.2021.04.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 04/04/2021] [Accepted: 04/05/2021] [Indexed: 01/20/2023]
Abstract
Microwave (MW) ablation and stereotactic body radiation therapy (SBRT) are both used in treating inoperable renal cell carcinoma (RCC). MW ablation and SBRT have potentially complementary advantages and limitations. Combining SBRT and MW ablation may optimize tumor control and toxicity for patients with larger (> 5 cm) RCCs or those with vascular involvement. Seven patients with RCC were treated at our institution with combination of SBRT and MW ablation, median tumor size of 6.4 cm. Local control was 100% with a median follow-up of 15 months. Four patients experienced grade 2 nausea during SBRT. Three patients experienced toxicities after MW ablation, 2 with grade 1 hematuria and 1 with grade 3 retroperitoneal bleed/collecting system injury. Median eGFR (estimated glomerular filtration rate) preceding and following SBRT and MW ablation was 69 mL/min/1.73 m2 and 68 mL/min/1.73 m2 (P = .19), respectively. In patients who are not surgical candidates, larger RCCs or those with vascular invasion are challenging to treat. Combination treatment with SBRT and MW ablation may balance the risks and benefits of both therapies and demonstrates high local control in our series. MW ablation and SBRT have potentially complementary advantages and limitations.
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Affiliation(s)
- Grace C Blitzer
- Department of Human Oncology, University of Wisconsin Hospitals & Clinics, Madison, WI.
| | | | - E Jason Abel
- Department of Urology, University of Wisconsin Hospitals & Clinics, Madison, WI
| | - Sara Best
- Department of Urology, University of Wisconsin Hospitals & Clinics, Madison, WI
| | - Fred T Lee
- Department of Radiology, University of Wisconsin Hospitals & Clinics, Madison, WI
| | - J Louis Hinshaw
- Department of Radiology, University of Wisconsin Hospitals & Clinics, Madison, WI
| | - Shane Wells
- Department of Radiology, University of Wisconsin Hospitals & Clinics, Madison, WI
| | - Timothy J Ziemlewicz
- Department of Radiology, University of Wisconsin Hospitals & Clinics, Madison, WI
| | - Meghan G Lubner
- Department of Radiology, University of Wisconsin Hospitals & Clinics, Madison, WI
| | - Marci Alexander
- Department of Radiology, University of Wisconsin Hospitals & Clinics, Madison, WI
| | - Poonam Yadav
- Department of Human Oncology, University of Wisconsin Hospitals & Clinics, Madison, WI
| | - John E Bayouth
- Department of Human Oncology, University of Wisconsin Hospitals & Clinics, Madison, WI
| | - John Floberg
- Department of Human Oncology, University of Wisconsin Hospitals & Clinics, Madison, WI
| | - Greg Cooley
- Department of Human Oncology, University of Wisconsin Hospitals & Clinics, Madison, WI
| | - Paul M Harari
- Department of Human Oncology, University of Wisconsin Hospitals & Clinics, Madison, WI
| | - Michael F Bassetti
- Department of Human Oncology, University of Wisconsin Hospitals & Clinics, Madison, WI
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Esdaille ARP, Lawrence E, Kyriakopoulos C, Johnson B, Roldán-Alzate A, Huang W, Beebe DJ, Emamekhoo H, Wells S, Lang JM, Cho SY, Jarrard DF. 18F-DCFPyL PSMA PET imaging compared to conventional imaging in the detection of pelvic nodal metastases in patients with locally advanced or oligometastatic prostate cancer. J Clin Oncol 2021. [DOI: 10.1200/jco.2021.39.6_suppl.36] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
36 Background: Interest has arisen in the use of prostate specific membrane antigen (PSMA) PET/CT imaging to detect prostate cancer at metastatic sites using different tracers. Here, we examined the ability of 18F-DCFPyL (DCFPyL) PSMA-based PET imaging to detect nodal disease in comparison to conventional imaging in a cohort of men with locally advanced or oligometastatic prostate cancer (PC). Methods: UW17009 is an IRB-approved open-label, single-arm trial that enrolled 26 patients with newly diagnosed advanced PC. Patients received androgen deprivation therapy and docetaxel for 3 months followed by radical prostatectomy (RP) and pelvic lymph node dissection (PLND). Exploratory interventions include PSMA PET/CT and MRI imaging as a method for determining treatment response and heterogeneity in primary PC and metastatic lesions performed before and after chemohormonal therapy. Prior to randomization, patients received DCFPyL PET/CT and PET/MR imaging as well as CTs and Bone Scans. A mean dose of 7.86 mCi DCFPyL was administered. Whole-body PET/CT images were acquired starting at approximately 60 minutes after radiotracer injection followed by dedicated pelvic PET/MR and whole-body PET/MR. PET imaging findings were compared to conventional dedicated CT imaging and were correlated to the results of final pathologic examination of each pelvic nodal dissection. Results: 26 patients underwent conventional and exploratory imaging with subsequent neoadjuvant treatment, RP and PLND. The mean diagnostic PSA was 32.1 ng/dl and 88.5% had Gleason 9 PCa. Using conventional imaging, pelvic nodal disease was identified in 6/26 patients. Pelvic lymph node uptake was identified in 12/26 patients using DCFPyL-based PSMA PET. Initial correlation of the pathologic specimens with pretreatment PSMA PET imaging revealed pelvic nodal metastatic PC in 10/12(83%) patients. On a per-lymph node packet basis (6 per patient), there were 156 evaluable regions, including 65 from patients with positive nodes. PSMA detected 14 packets that were positive for PC and 102 packets that were negative on imaging and final pathology. PC was missed in 5 packets. The mean tumor size in the missed nodes was 2.3 mm(range 1-4 mm). Calculated sensitivity was 73.7%(95% CI [48.8, 90.8]), 85.7 % specificity(95% CI[78.1, 91.4]), and 95.3 % negative predictive value(95% CI[90.5, 97.7]). Conclusions: In comparison to conventional imaging, in this cohort, DCFPyL PSMA-based PET imaging identified nodal positive disease at twice the rate and when evaluating on a per-packet basis, there was high negative predictive value. Ongoing analysis of post-chemohormonal therapy PET imaging may provide more information regarding tumor response in this cohort.
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Affiliation(s)
| | - Edward Lawrence
- University of Wisconsin School of Medicine and Public Health, Madison, WI
| | | | | | | | - Wei Huang
- University of Wisconsin Madison, Madison, WI
| | - David J. Beebe
- Department of Biomedical Engineering, University of Wisconsin, Madison, WI
| | - Hamid Emamekhoo
- University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - Shane Wells
- University of Wisconsin School of Medicine and Public Health, Madison, WI
| | | | - Steve Y. Cho
- University of Wisconsin SMPH, Department of Radiology, University of Wisconsin Carbone Cancer Center, Madison, WI
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12
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Esdaille ARP, Kyriakopoulos C, Cho SY, Johnson B, Allen GO, Huang W, Roldán-Alzate A, Beebe DJ, Emamekhoo H, Wells S, Lang JM, Jarrard DF. Preoperative predictors of biochemical recurrence in a phase II trial of neoadjuvant therapy in very high-risk prostate cancer. J Clin Oncol 2021. [DOI: 10.1200/jco.2021.39.6_suppl.74] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
74 Background: Understanding the lethal nature of high risk prostate cancer, there is a need for the development of multimodal therapies. Prior studies have confirmed a survival benefit with the addition of docetaxel to androgen deprivation therapy (ADT) in men with metastatic hormone-sensitive prostate cancer (HSPC). We conducted a Phase II trial enrolling men with very high risk localized, locally advanced or oligometastatic prostate cancer (PC) to examine resistance and response to neoadjuvant chemohormonal therapy. This analysis aims to identify the preoperative predictors of biochemical recurrence (BCR). Methods: UW17009 is an IRB-approved open-label, single-arm trial that recruited 26 men with newly diagnosed advanced PC. Patients received ADT and docetaxel for 3 months followed by prostatectomy. The primary endpoint was pathologic complete response rate. A secondary clinical objective was the rate of PSA recurrence 12 months after surgery. The pre-trial PSAs, age, cancer grade, stage, percent tumor involvement of the initial biopsy, metastatic disease on conventional and 18F-DCFPyL PSMA (DCFPyL) PET/CT and MRI imaging, completion of chemohormonal therapy and PSA nadirs following chemohormonal therapy were assessed in relationship to biochemical recurrence. One way ANOVA was used to evaluate differences among continuous values: age, PSA at diagnosis, percent tumor involvement, and PSA nadir after chemo ADT. Fisher’s exact tests were used to evaluate the differences among categorical variables: stage at diagnosis, positive bone scan, and positive PSMA PET. Results: 26 patients were enrolled and underwent neoadjuvant treatment, radical prostatectomy (RP) and lymph node dissection. The median age was 62 (IQR 58-66), mean PSA at diagnosis was 32.8 ng/dl and 88.4% had Gleason 9 cancer. At study initiation, 12/26 patients had metastatic disease detected by DCFPyL-based PSMA PET. Final pathology demonstrated 81%(21/26) had ≥ pT3 and 73%(19/26) patients had negative margins. Positive lymph nodes were found in 10/26(38.5%) patients on final pathology. At week 6 after surgery, 91%(24/26) had undetectable PSA. At a mean follow up of 12.1 months(5.2-21.4), the biochemical recurrence rate is 58%(15/26). Features associated with BCR include stage, % tumor involvement, and positive PSMA PET scan. All patients with positive margins and 9/10 patients with positive nodes at final pathology developed BCR at a mean follow up of 12 months. Conclusions: In this neoadjuvant cohort, stage T2c, elevated PSA, positive pre-operative PSMA PET/CT, and PSA nadir > 1 following chemohormonal therapy predict biochemical recurrence. Clinically, and in the short term, neoadjuvant chemohormonal therapy prior to definitive surgery for very high risk localized and/or oligometastatic PC generates local tumor control with a high rate of negative surgical margins.
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Affiliation(s)
| | | | - Steve Y. Cho
- University of Wisconsin SMPH, Department of Radiology, University of Wisconsin Carbone Cancer Center, Madison, WI
| | | | - Glenn O. Allen
- University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - Wei Huang
- University of Wisconsin Madison, Madison, WI
| | | | - David J. Beebe
- Department of Biomedical Engineering, University of Wisconsin, Madison, WI
| | - Hamid Emamekhoo
- University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - Shane Wells
- University of Wisconsin School of Medicine and Public Health, Madison, WI
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Wells S, Raaijmakers A, Curl C, O'Shea C, Kirchhof P, Pavlovic D, Delbridge L, Bell J. Disruption to Mouse Ventricular Transmural Conduction Gradients in a Setting of High Cardiac Adiposity. Heart Lung Circ 2021. [DOI: 10.1016/j.hlc.2021.06.143] [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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Evans T, Poppe K, Rolleston A, Legget M, Stubbs M, Heath M, Aish S, Wells S, Richards A, Stewart R, Doughty R. A017 Cardiac Biomarkers to Guide Risk in Secondary Prevention Post-Acute Coronary Syndromes. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.05.022] [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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Abstract
INTRODUCTION The Vascular Risk in Adult New Zealanders (VARIANZ) datasets contain a range of routinely-collected New Zealand health data relevant to cardiovascular disease (CVD) and related conditions. The datasets enable exploration of cardiovascular-related treatment, service utilisation, outcomes and prognosis. PROCESSES Each dataset is constructed by anonymised individual-level linkage of eight national administrative health databases to identify all New Zealand adults aged ≥20 years who have recorded contact with publicly-funded New Zealand health services during a given year from 2006 onwards, when data quality is considered sufficient. DATA CONTENTS Individual-level data for each VARIANZ dataset can include variables covering demography, dispensing of cardiovascular disease (CVD) preventive medications and prior hospitalisations for atherosclerotic CVD, heart failure, atrial fibrillation and diabetes. If required, VARIANZ datasets can be individually linked to follow-up national routinely collected health data in subsequent years, including all-cause mortality events and fatal/non-fatal CVD events, to create VARIANZ longitudinal cohorts. Bespoke linkage can also be undertaken to include other national and regional administrative health data such as non-CVD related hospitalisations in order to explore CVD comorbidities or novel risk factors. Furthermore, a subset of the VARIANZ datasets based on specific health contacts (such as CVD hospitalisations only) can also be identified, and some data can be requested for years prior to 2006. The New Zealand routinely-collected health databases used to construct the VARIANZ datasets do not capture primary care diagnostic classifications or certain CVD risk factor data such as smoking status, blood pressure or lipid profiles. CONCLUSION The Vascular Risk in Adult New Zealanders (VARIANZ) datasets capture the majority of the New Zealand population in a given year and are available from 2006 onwards, or earlier than 2006 for some datasets based on specific health contacts. VARIANZ data can be used to explore a range of research questions regarding management, outcomes and prognosis for CVD.
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Affiliation(s)
- S Mehta
- Section of Epidemiology and Biostatistics, School of Population Health, University of Auckland, Auckland, New Zealand
| | - R Jackson
- Section of Epidemiology and Biostatistics, School of Population Health, University of Auckland, Auckland, New Zealand
| | - DJ Exeter
- Section of Epidemiology and Biostatistics, School of Population Health, University of Auckland, Auckland, New Zealand
| | - BP Wu
- Section of Epidemiology and Biostatistics, School of Population Health, University of Auckland, Auckland, New Zealand
| | - S Wells
- Section of Epidemiology and Biostatistics, School of Population Health, University of Auckland, Auckland, New Zealand
| | - AJ Kerr
- Section of Epidemiology and Biostatistics, School of Population Health, University of Auckland, Auckland, New Zealand
- Middlemore Hospital, Auckland, New Zealand
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Wells S, Evans L, Nelson A, Anwar A, Singh I, Aithal S. 102PREVALENCE OF ATRIAL FIBRILLATION AND ITS IMPACT ON COGNITION IN PEOPLE WITH IDIOPATHIC PARKINSON’S DISEASE. Age Ageing 2019. [DOI: 10.1093/ageing/afz064.03] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S Wells
- Department of Geriatric Medicine, Ysbyty Ystrad Fawr, Aneurin Bevan University Health Board, Wales
| | - L Evans
- Department of Geriatric Medicine, Ysbyty Ystrad Fawr, Aneurin Bevan University Health Board, Wales
| | - A Nelson
- Department of Geriatric Medicine, Ysbyty Ystrad Fawr, Aneurin Bevan University Health Board, Wales
| | - A Anwar
- Department of Geriatric Medicine, Ysbyty Ystrad Fawr, Aneurin Bevan University Health Board, Wales
| | - I Singh
- Department of Geriatric Medicine, Ysbyty Ystrad Fawr, Aneurin Bevan University Health Board, Wales
| | - S Aithal
- Department of Geriatric Medicine, Ysbyty Ystrad Fawr, Aneurin Bevan University Health Board, Wales
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Triche B, Curci N, Abel E, Caoili E, Maciolek K, Davenport M, Wells S. 04:21 PM Abstract No. 372 Contrast-enhanced CT performed in conjunction with renal ablation is safe. J Vasc Interv Radiol 2019. [DOI: 10.1016/j.jvir.2018.12.445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Waddell H, Wells S, Sim C, Porrello E, Delbridge L, Bell J. Microelectrode Array Screening of Different Cardiomyocyte Cultures Reveals Inherent Disparities in Cardiac Cell Electrophysiology. Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.035] [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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Wells S, O'shea C, Waddell H, Kirchhof P, Pavlovic D, Delbridge L, Bell J. Acute Oestradiol Slows Conduction in Male, but not Female, Murine Left Atria. Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.155] [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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B, Burroughs C, Cuthbertson D, Deemer M, Eberhard C, Fiske S, Ford J, Garmeson J, Guillette H, Browning G, Coughenour T, Sulk M, Tsalikan E, Tansey M, Cabbage J, Dixit N, Pasha S, King M, Adcock K, Geyer S, Atterberry H, Fox L, Englert K, Mauras N, Permuy J, Sikes K, Berhe T, Guendling B, McLennan L, Paganessi L, Hays B, Murphy C, Draznin M, Kamboj M, Sheppard S, Lewis V, Coates L, Moore W, Babar G, Bedard J, Brenson-Hughes D, Henderson C, Cernich J, Clements M, Duprau R, Goodman S, Hester L, Huerta-Saenz L, Karmazin A, Letjen T, Raman S, Morin D, Henry M, Bestermann W, Morawski E, White J, Brockmyer A, Bays R, Campbell S, Stapleton A, Stone N, Donoho A, Everett H, Heyman K, Hensley H, Johnson M, Marshall C, Skirvin N, Taylor P, Williams R, Ray L, Wolverton C, Nickels D, Dothard C, Hsiao B, Speiser P, Pellizzari M, Bokor L, Izuora K, Abdelnour S, Cummings P, Paynor S, Leahy M, Riedl M, Shockley S, Karges C, Saad R, Briones T, Casella S, Herz C, Walsh K, Greening J, Hay F, Hunt S, 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McCuller R, Miller A, Accacha S, Corrigan J, Fiore E, Levine R, Mahoney T, Polychronakos C, Martin J, Gagne V, Starkman H, Fox M, Chin D, Melchionne F, Silverman L, Marshall I, Cerracchio L, Cruz J, Viswanathan A, Miller J, Wilson J, Chalew S, Valley S, Layburn S, Lala A, Clesi P, Genet M, Uwaifo G, Charron A, Allerton T, Milliot E, Cefalu W, Melendez-Ramirez L, Richards R, Alleyn C, Gustafson E, Lizanna M, Wahlen J, Aleiwe S, Hansen M, Wahlen H, Moore M, Levy C, Bonaccorso A, Rapaport R, Tomer Y, Chia D, Goldis M, Iazzetti L, Klein M, Levister C, Waldman L, Muller S, Wallach E, Regelmann M, Antal Z, Aranda M, Reynholds C, Leech N, Wake D, Owens C, Burns M, Wotherspoon J, Nguyen T, Murray A, Short K, Curry G, Kelsey S, Lawson J, Porter J, Stevens S, Thomson E, Winship S, Wynn L, O’Donnell R, Wiltshire E, Krebs J, Cresswell P, Faherty H, Ross C, Vinik A, Barlow P, Bourcier M, Nevoret M, Couper J, Oduah V, Beresford S, Thalagne N, Roper H, Gibbons J, Hill J, Balleaut S, Brennan C, 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McCormick D, Powell A, Jones H, Bell J, Hargadon S, Hudson S, Kummer M, Badias F, Sauder S, Sutton E, Gensel K, Aguirre-Castaneda R, Benavides Lopez V, Hemp D, Allen S, Stear J, Davis E, Jones T, Baker A, Roberts A, Dart J, Paramalingam N, Levitt Katz L, Chaudhary N, Murphy K, Willi S, Schwartzman B, Kapadia C, Larson D, Bassi M, McClellan D, Shaibai G, Kelley L, Villa G, Kelley C, Diamond R, Kabbani M, Dajani T, Hoekstra F, Magorno M, Beam C, Holst J, Chauhan V, Wilson N, Bononi P, Sperl M, Millward A, Eaton M, Dean L, Olshan J, Renna H, Boulware D, Milliard C, Snyder D, Beaman S, Burch K, Chester J, Ahmann A, Wollam B, DeFrang D, Fitch R, Jahnke K, Bounmananh L, Hanavan K, Klopfenstein B, Nicol L, Bergstrom R, Noland T, Brodksy J, Bacon L, Quintos J, Topor L, Bialo S, Bream S, Bancroft B, Soto A, Lagarde W, Lockemer H, Vanderploeg T, Ibrahim M, Huie M, Sanchez V, Edelen R, Marchiando R, Freeman D, Palmer J, Repas T, Wasson M, Auker P, Culbertson J, Kieffer T, Voorhees D, Borgwardt T, DeRaad L, Eckert K, Gough J, Isaacson E, Kuhn H, Carroll A, Schubert M, Francis G, Hagan S, Le T, Penn M, Wickham E, Leyva C, Ginem J, Rivera K, Padilla J, Rodriguez I, Jospe N, Czyzyk J, Johnson B, Nadgir U, Marlen N, Prakasam G, Rieger C, Granger M, Glaser N, Heiser E, Harris B, Foster C, Slater H, Wheeler K, Donaldson D, Murray M, Hale D, Tragus R, Holloway M, Word D, Lynch J, Pankratz L, Rogers W, Newfield R, Holland S, Hashiguchi M, Gottschalk M, Philis-Tsimikas A, Rosal R, Kieffer M, Franklin S, Guardado S, Bohannon N, Garcia M, Aguinaldo T, Phan J, Barraza V, Cohen D, Pinsker J, Khan U, Lane P, Wiley J, Jovanovic L, Misra P, Wright M, Cohen D, Huang K, Skiles M, Maxcy S, Pihoker C, Cochrane K, Nallamshetty L, Fosse J, Kearns S, Klingsheim M, Wright N, Viles L, Smith H, Heller S, Cunningham M, Daniels A, Zeiden L, Parrimon Y, Field J, Walker R, Griffin K, Bartholow L, Erickson C, Howard J, Krabbenhoft B, Sandman C, Vanveldhuizen A, Wurlger J, Paulus K, Zimmerman A, Hanisch K, Davis-Keppen L, Cotterill A, Kirby J, Harris M, Schmidt A, Kishiyama C, Flores C, Milton J, Ramiro J, Martin W, Whysham C, Yerka A, Freels T, Hassing J, Webster J, Green R, Carter P, Galloway J, Hoelzer D, Ritzie AQL, Roberts S, Said S, Sullivan P, Allen H, Reiter E, Feinberg E, Johnson C, Newhook L, Hagerty D, White N, Sharma A, Levandoski L, Kyllo J, Johnson M, Benoit C, Iyer P, Diamond F, Hosono H, Jackman S, Barette L, Jones P, Shor A, Sills I, Bzdick S, Bulger J, Weinstock R, Douek I, Andrews R, Modgill G, Gyorffy G, Robin L, Vaidya N, Song X, Crouch S, O’Brien K, Thompson C, Thorne N, Blumer J, Kalic J, Klepek L, Paulett J, Rosolowski B, Horner J, Terry A, Watkins M, Casey J, Carpenter K, Burns C, Horton J, Pritchard C, Soetaert D, Wynne A, Kaiserman K, Halvorson M, Weinberger J, Chin C, Molina O, Patel C, Senguttuvan R, Wheeler M, Furet O, Steuhm C, Jelley D, Goudeau S, Chalmers L, Wootten M, Greer D, Panagiotopoulos C, Metzger D, Nguyen D, Horowitz M, Christiansen M, Glades E, Morimoto C, Macarewich M, Norman R, Harding P, Patin K, Vargas C, Barbanica A, Yu A, Vaidyanathan P, Osborne W, Mehra R, Kaster S, Neace S, Horner J, McDonough S, Reeves G, Cordrey C, Marrs L, Miller T, Dowshen S, Doyle D, Walker S, Catte D, Dean H, Drury-Brown M, McGee PF, Hackman B, Lee M, Malkani S, Cullen K, Johnson K, Hampton P, McCarrell M, Curtis C, Paul E, Zambrano Y, Hess KO, Phoebus D, Quinlan S, Raiden E, Batts E, Buddy C, Kirpatrick K, Ramey M, Shultz A, Webb C, Romesco M, Fradkin J, Blumberg E, Beck G, Brillon D, Gubitosi-Klug R, Laffel L, Veatch R, Wallace D, Braun J, Lernmark A, Lo B, Mitchell H, Naji A, Nerup J, Orchard T, Steffes M, Tsiatis A, Zinman B, Loechelt B, Baden L, Green M, Weinberg A, Marcovina S, Palmer JP, Weinberg A, Yu L, Babu S, Winter W, Eisenbarth GS, Bingley P, Clynes R, DiMeglio L, Eisenbarth G, Hays B, Marks J, Matheson D, Rodriguez H, Wilson D, Redondo MJ, Gomez D, Zheng X, Pena S, Pietropaolo M, Batts E, Brown T, Buckner J, Dove A, Hammond M, 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Toledo F, Rodriguez H, Bollepalli S, Diamond F, Eyth E, Henson D, Lenz A, Shulman D, Raskin P, Adhikari S, Dickson B, Dunnigan E, Lingvay I, Pruneda L, Ramos-Roman M, Raskin P, Rhee C, Richard J, Siegelman M, Sturges D, Sumpter K, White P, Alford M, Arthur J, Aviles-Santa ML, Cordova E, Davis R, Fernandez S, Fordan S, Hardin T, Jacobs A, Kaloyanova P, Lukacova-Zib I, Mirfakhraee S, Mohan A, Noto H, Smith O, Torres N, Wherrett D, Balmer D, Eisel L, Kovalakovska R, Mehan M, Sultan F, Ahenkorah B, Cevallos J, Razack N, Ricci MJ, Rhode A, Srikandarajah M, Steger R, Russell WE, Black M, Brendle F, Brown A, Moore D, Pittel E, Robertson A, Shannon A, Thomas JW, Herold K, Feldman L, Sherwin R, Tamborlane W, Weinzimer S, Toppari J, Kallio T, Kärkkäinen M, Mäntymäki E, Niininen T, Nurmi B, Rajala P, Romo M, Suomenrinne S, Näntö-Salonen K, Simell O, Simell T, Bosi E, Battaglia M, Bianconi E, Bonfanti R, Grogan P, Laurenzi A, Martinenghi S, Meschi F, Pastore M, Falqui L, Muscato MT, Viscardi M, 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Gardner J, LeBoeuf C, Bell P, McGlore O, Tennet H, Alba N, Carroll M, Baert L, Beaton H, Cordell E, Haynes A, Reed C, Lichter K, McCarthy P, McCarthy S, Monchamp T, Roach J, Manies S, Gunville F, Marosok L, Nelson T, Ackerman K, Rudolph J, Stewart M, McCormick K, May S, Falls T, Barrett T, Dale K, Makusha L, McTernana C, Penny-Thomas K, Sullivan K, Narendran P, Robbie J, Smith D, Christensen R, Koehler B, Royal C, Arthur T, Houser H, Renaldi J, Watsen S, Wu P, Lyons L, House B, Yu J, Holt H, Nation M, Vickers C, Watling R, Heptulla R, Trast J, Agarwal C, Newell D, Katikaneni R, Gardner C, Del Rio A, Logan A, Collier H, Rishton C, Whalley G, Ali A, Ramtoola S, Quattrin T, Mastrandea L, House A, Ecker M, Huang C, Gougeon C, Ho J, Pacuad D, Dunger D, May J, O’Brien C, Acerini C, Salgin B, Thankamony A, Williams R, Buse J, Fuller G, Duclos M, Tricome J, Brown H, Pittard D, Bowlby D, Blue A, Headley T, Bendre S, Lewis K, Sutphin K, Soloranzo C, Puskaric J, Madison H, Rincon M, Carlucci M, Shridharani R, Rusk B, Tessman E, Huffman D, Abrams H, Biederman B, Jones M, Leathers V, Brickman W, Petrie P, Zimmerman D, Howard J, Miller L, Alemzadeh R, Mihailescu D, Melgozza-Walker R, Abdulla N, Boucher-Berry C, Ize-Ludlow D, Levy R, Swenson Brousell C, Scott R, Heenan H, Lunt H, Kendall D, Willis J, Darlow B, Crimmins N, Edler D, Weis T, Schultz C, Rogers D, Latham D, Mawhorter C, Switzer C, Spencer W, Konstantnopoulus P, Broder S, Klein J, Bachrach B, Gardner M, Eichelberger D, Knight L, Szadek L, Welnick G, Thompson B, Hoffman R, Revell A, Cherko J, Carter K, Gilson E, Haines J, Arthur G, Bowen B, Zipf W, Graves P, Lozano R, Seiple D, Spicer K, Chang A, Fregosi J, Harbinson J, Paulson C, Stalters S, Wright P, Zlock D, Freeth A, Victory J, Maheshwari H, Maheshwari A, Holmstrom T, Bueno J, Arguello R, Ahern J, Noreika L, Watson V, Hourse S, Breyer P, Kissel C, Nicholson Y, Pfeifer M, Almazan S, Bajaj J, Quinn M, Funk K, McCance J, Moreno E, Veintimilla R, Wells A, Cook J, Trunnel S, Transue D, Surhigh J, Bezzaire D, Moltz K, Zacharski E, Henske J, Desai S, Frizelis K, Khan F, Sjoberg R, Allen K, Manning P, Hendry G, Taylor B, Jones S, Couch R, Danchak R, Lieberman D, Strader W, Bencomo M, Bailey T, Bedolla L, Roldan C, Moudiotis C, Vaidya B, Anning C, Bunce S, Estcourt S, Folland E, Gordon E, Harrill C, Ireland J, Piper J, Scaife L, Sutton K, Wilkins S, Costelloe M, Palmer J, Casas L, Miller C, Burgard M, Erickson C, Hallanger-Johnson J, Clark P, Taylor W, Galgani J, Banerjee S, Banda C, McEowen D, Kinman R, Lafferty A, Gillett S, Nolan C, Pathak M, Sondrol L, Hjelle T, Hafner S, Kotrba J, Hendrickson R, Cemeroglu A, Symington T, Daniel M, Appiagyei-Dankah Y, Postellon D, Racine M, Kleis L, Barnes K, Godwin S, McCullough H, Shaheen K, Buck G, Noel L, Warren M, Weber S, Parker S, Gillespie I, Nelson B, Frost C, Amrhein J, Moreland E, Hayes A, Peggram J, Aisenberg J, Riordan M, Zasa J, Cummings E, Scott K, Pinto T, Mokashi A, McAssey K, Helden E, Hammond P, Dinning L, Rahman S, Ray S, Dimicri C, Guppy S, Nielsen H, Vogel C, Ariza C, Morales L, Chang Y, Gabbay R, Ambrocio L, Manley L, Nemery R, Charlton W, Smith P, Kerr L, Steindel-Kopp B, Alamaguer M, Tabisola-Nuesca E, Pendersen A, Larson N, Cooper-Olviver H, Chan D, Fitz-Patrick D, Carreira T, Park Y, Ruhaak R, Liljenquist D. A Type 1 Diabetes Genetic Risk Score Predicts Progression of Islet Autoimmunity and Development of Type 1 Diabetes in Individuals at Risk. Diabetes Care 2018; 41:1887-1894. [PMID: 30002199 PMCID: PMC6105323 DOI: 10.2337/dc18-0087] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 06/06/2018] [Indexed: 02/03/2023]
Abstract
OBJECTIVE We tested the ability of a type 1 diabetes (T1D) genetic risk score (GRS) to predict progression of islet autoimmunity and T1D in at-risk individuals. RESEARCH DESIGN AND METHODS We studied the 1,244 TrialNet Pathway to Prevention study participants (T1D patients' relatives without diabetes and with one or more positive autoantibodies) who were genotyped with Illumina ImmunoChip (median [range] age at initial autoantibody determination 11.1 years [1.2-51.8], 48% male, 80.5% non-Hispanic white, median follow-up 5.4 years). Of 291 participants with a single positive autoantibody at screening, 157 converted to multiple autoantibody positivity and 55 developed diabetes. Of 953 participants with multiple positive autoantibodies at screening, 419 developed diabetes. We calculated the T1D GRS from 30 T1D-associated single nucleotide polymorphisms. We used multivariable Cox regression models, time-dependent receiver operating characteristic curves, and area under the curve (AUC) measures to evaluate prognostic utility of T1D GRS, age, sex, Diabetes Prevention Trial-Type 1 (DPT-1) Risk Score, positive autoantibody number or type, HLA DR3/DR4-DQ8 status, and race/ethnicity. We used recursive partitioning analyses to identify cut points in continuous variables. RESULTS Higher T1D GRS significantly increased the rate of progression to T1D adjusting for DPT-1 Risk Score, age, number of positive autoantibodies, sex, and ethnicity (hazard ratio [HR] 1.29 for a 0.05 increase, 95% CI 1.06-1.6; P = 0.011). Progression to T1D was best predicted by a combined model with GRS, number of positive autoantibodies, DPT-1 Risk Score, and age (7-year time-integrated AUC = 0.79, 5-year AUC = 0.73). Higher GRS was significantly associated with increased progression rate from single to multiple positive autoantibodies after adjusting for age, autoantibody type, ethnicity, and sex (HR 2.27 for GRS >0.295, 95% CI 1.47-3.51; P = 0.0002). CONCLUSIONS The T1D GRS independently predicts progression to T1D and improves prediction along T1D stages in autoantibody-positive relatives.
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Affiliation(s)
- Maria J. Redondo
- Texas Children’s Hospital, Baylor College of Medicine, Houston, TX
| | | | - Andrea K. Steck
- Barbara Davis Center for Childhood Diabetes, University of Colorado School of Medicine, Aurora, CO
| | - Seth Sharp
- Institute of Biomedical and Clinical Science, University of Exeter, Exeter, U.K
| | - John M. Wentworth
- Walter and Eliza Hall Institute of Medical Research and Royal Melbourne Hospital, Parkville, Victoria, Australia
| | - Michael N. Weedon
- Institute of Biomedical and Clinical Science, University of Exeter, Exeter, U.K
| | | | | | | | | | - Richard A. Oram
- Institute of Biomedical and Clinical Science, University of Exeter, Exeter, U.K
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Zhang Y, Holmes J, Rabanillo I, Guidon A, Wells S, Hernando D. Quantitative diffusion MRI using reduced field-of-view and multi-shot acquisition techniques: Validation in phantoms and prostate imaging. Magn Reson Imaging 2018; 51:173-181. [PMID: 29678540 DOI: 10.1016/j.mri.2018.04.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 04/14/2018] [Indexed: 01/22/2023]
Abstract
PURPOSE To evaluate the reproducibility of quantitative diffusion measurements obtained with reduced Field of View (rFOV) and Multi-shot EPI (msEPI) acquisitions, using single-shot EPI (ssEPI) as a reference. METHODS Diffusion phantom experiments, and prostate diffusion-weighted imaging in healthy volunteers and patients with known or suspected prostate cancer were performed across the three different sequences. Quantitative diffusion measurements of apparent diffusion coefficient, and diffusion kurtosis parameters (healthy volunteers), were obtained and compared across diffusion sequences (rFOV, msEPI, and ssEPI). Other possible confounding factors like b-value combinations and acquisition parameters were also investigated. RESULTS Both msEPI and rFOV have shown reproducible quantitative diffusion measurements relative to ssEPI; no significant difference in ADC was observed across pulse sequences in the standard diffusion phantom (p = 0.156), healthy volunteers (p ≥ 0.12) or patients (p ≥ 0.26). The ADC values within the non-cancerous central gland and peripheral zone of patients were 1.29 ± 0.17 × 10-3 mm2/s and 1.74 ± 0.23 × 10-3 mm2/s respectively. However, differences in quantitative diffusion parameters were observed across different number of averages for rFOV, and across b-value groups and diffusion models for all the three sequences. CONCLUSION Both rFOV and msEPI have the potential to provide high image quality with reproducible quantitative diffusion measurements in prostate diffusion MRI.
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Affiliation(s)
- Yuxin Zhang
- Department of Medical Physics, University of Wisconsin Madison, Madison, WI, United States; Department of Radiology, School of Medicine and Public Health, University of Wisconsin Madison, Madison, WI, United States
| | - James Holmes
- Department of Radiology, School of Medicine and Public Health, University of Wisconsin Madison, Madison, WI, United States
| | - Iñaki Rabanillo
- Laboratorio MR de Procesado de Imagen, Universidad de Valladolid, Valladolid, Spain
| | - Arnaud Guidon
- Applications and Workflow, GE Healthcare, Boston, MA, United States
| | - Shane Wells
- Department of Radiology, School of Medicine and Public Health, University of Wisconsin Madison, Madison, WI, United States
| | - Diego Hernando
- Department of Medical Physics, University of Wisconsin Madison, Madison, WI, United States; Department of Radiology, School of Medicine and Public Health, University of Wisconsin Madison, Madison, WI, United States.
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Waddell H, Wells S, Delbridge L, Bell J. Assessing Sex and Sex Steroid Influence on Cardiac Electrophysiology in Cultured Monolayers. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Abel EJ, Miller B, Gettle LM, Van Roo JR, Ziemlewicz TJ, Best SL, Wells S, Lubner M, Downs TM, Nakada SY. Should Active Surveillance Be the Treatment of Choice for Renal Oncocytic Neoplasms? J Am Coll Surg 2017. [DOI: 10.1016/j.jamcollsurg.2017.07.656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Yang W, Varghese T, Ziemlewicz T, Alexander M, Lubner M, Hinshaw JL, Wells S, Lee FT. Delineation of Post-Procedure Ablation Regions with Electrode Displacement Elastography with a Comparison to Acoustic Radiation Force Impulse Imaging. Ultrasound Med Biol 2017; 43:1953-1962. [PMID: 28595851 PMCID: PMC5523876 DOI: 10.1016/j.ultrasmedbio.2017.04.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 04/12/2017] [Accepted: 04/20/2017] [Indexed: 05/03/2023]
Abstract
We compared a quasi-static ultrasound elastography technique, referred to as electrode displacement elastography (EDE), with acoustic radiation force impulse imaging (ARFI) for monitoring microwave ablation (MWA) procedures on patients diagnosed with liver neoplasms. Forty-nine patients recruited to this study underwent EDE and ARFI with a Siemens Acuson S2000 system after an MWA procedure. On the basis of visualization results from two observers, the ablated region in ARFI images was recognizable on 20 patients on average in conjunction with B-mode imaging, whereas delineable ablation boundaries could be generated on 4 patients on average. With EDE, the ablated region was delineable on 40 patients on average, with less imaging depth dependence. Study of tissue-mimicking phantoms revealed that the ablation region dimensions measured on EDE and ARFI images were within 8%, whereas the image contrast and contrast-to-noise ratio with EDE was two to three times higher than that obtained with ARFI. This study indicated that EDE provided improved monitoring results for minimally invasive MWA in clinical procedures for liver cancer and metastases.
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Affiliation(s)
- Wenjun Yang
- Department of Medical Physics, University of Wisconsin School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin, USA.
| | - Tomy Varghese
- Department of Medical Physics, University of Wisconsin School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Timothy Ziemlewicz
- Department of Radiology, University of Wisconsin School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Marci Alexander
- Department of Radiology, University of Wisconsin School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Meghan Lubner
- Department of Radiology, University of Wisconsin School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - James Louis Hinshaw
- Department of Radiology, University of Wisconsin School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Shane Wells
- Department of Radiology, University of Wisconsin School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Fred T Lee
- Department of Radiology, University of Wisconsin School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin, USA
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Poppe K, Doughty R, Harwood M, Barber P, Harrison J, Jackson R, Wells S. P1546Suboptimal management of cardiovascular risk among people with atrial fibrillation - an opportunity for improvement? Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Poppe K, Doughty R, Harwood M, Barber P, Harrison J, Jackson R, Wells S. P5828Stroke and cardiovascular outcomes for patients with atrial fibrillation in the community - an opportunity for improvement? Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Lim AH, Wells S, Grimes M, Wittmann T, Best S, Hinshaw JL, Lee FT, Lubner M, Ziemiewicz T, Nakada SY, Abel EJ. MP100-12 SHOULD PATHOLOGIC DIAGNOSIS BE OBTAINED PRIOR TO RENAL MASS ABLATION? J Urol 2017. [DOI: 10.1016/j.juro.2017.02.3119] [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: 11/25/2022]
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Johnson B, Wells S, Best S, Hartung M, Ziemlewicz T, Lubner M, Hinshaw JL, Lee F, Nakada SY, Abel EJ. MP100-04 PERCUTANEOUS MICROWAVE ABLATION FOR CLINICAL T1B RENAL CANCERS. J Urol 2017. [DOI: 10.1016/j.juro.2017.02.3111] [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: 10/19/2022]
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Best S, Johnson B, Wells S, Lubner M, Ziemlewicz T, Hinshaw JL, Lee F, Nakada SY, Abel EJ. MP100-18 LONG-TERM OUTCOMES OF CRYOABLATION FOR BIOPSY-PROVEN RCC: SIZE MATTERS. J Urol 2017. [DOI: 10.1016/j.juro.2017.02.3125] [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: 10/19/2022]
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Schubert T, Motosugi U, Kinner S, Colgan TJ, Sharma SD, Hetzel S, Wells S, Campo CA, Reeder SB. Crossover comparison of ferumoxytol and gadobenate dimeglumine for abdominal MR-angiography at 3.0 tesla: Effects of contrast bolus length and flip angle. J Magn Reson Imaging 2016; 45:1617-1626. [PMID: 27862577 DOI: 10.1002/jmri.25513] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Accepted: 10/01/2016] [Indexed: 12/16/2022] Open
Abstract
PURPOSE Ferumoxytol (FE) has gained interest as an alternative to gadolinium-based contrast agents (GBCAs). The purpose of this study was to evaluate and optimize ferumoxytol dose and T1 weighting, in comparison to a conventional GBCA. MATERIALS AND METHODS Twelve healthy volunteers (six women / six men, mean age 44.3 years) were recruited for this study. Scanning was performed on a clinical 3 Tesla (T) MRI system. Gadobenate dimeglumine (GD)-enhanced MRA was performed followed by FE-enhanced MRA 1 month later. Volunteers were randomly assigned to a diluted (n = 6) or undiluted (n = 6) dose of GD (0.1 mmol/kg), and to FE doses of 4 mg/kg (n = 6) or 2 mg/kg (n = 6). First pass and steady-state MRA were performed for GD- and FE-enhanced MRA. Flip-angle optimization was performed after FE administration. Quantitative analysis included relative contrast-to-noise ratio (relCNR) measurements for all acquisitions. First pass GD- and FE-enhanced MRA images were evaluated qualitatively. RESULTS RelCNR was significantly higher with undiluted GD (31.8, 95% confidence interval [CI], 27.7-35.9) compared with diluted GD (16.2; 95% CI, 12.2-20.3; P = 0.001) and both 4 mg/kg FE (12.5; 95% CI, 8.5-16.4; P < 0.001) and 2 mg/kg FE (9.1; 95% CI, 5.1-13.2; P < 0.001) during first pass. Relative CNR did not decrease with FE 5 min postinjection compared with GD. Flip-angle analysis revealed relative CNR-peaks at 30° for FE 4 mg/kg and at 20° for FE 2 mg/kg. Diluted GD (P = 0.013) and FE 4 mg/kg (P = 0.01) revealed significantly higher image quality scores compared with undiluted GD during first pass. CONCLUSION This study shows an equivalent image quality of FE and GD for first pass MRA even though GD showed significantly higher relative CNR. LEVEL OF EVIDENCE 1 Technical Efficacy: Stage 2 J. MAGN. RESON. IMAGING 2017;45:1617-1626.
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Affiliation(s)
- Tilman Schubert
- Department of Radiology, University of Wisconsin-Madison, Madison, Wisconsin, USA.,Clinic of Radiology and Nuclear Medicine, Basel University Hospital, Basel, Switzerland
| | - Utaroh Motosugi
- Department of Radiology, University of Wisconsin-Madison, Madison, Wisconsin, USA.,Department of Radiology, University of Yamanashi, Yamanashi, Japan
| | - Sonja Kinner
- Department of Radiology, University of Wisconsin-Madison, Madison, Wisconsin, USA.,Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Germany
| | - Timothy J Colgan
- Department of Radiology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Samir D Sharma
- Department of Radiology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Scott Hetzel
- Department of Biostatistics and Medical Informatics, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Shane Wells
- Department of Radiology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Camilo A Campo
- Department of Radiology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Scott B Reeder
- Department of Radiology, University of Wisconsin-Madison, Madison, Wisconsin, USA.,Department of Medical Physics, University of Wisconsin-Madison, Madison, Wisconsin, USA.,Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA.,Department of Emergency Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA.,Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin, USA
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Affiliation(s)
- B Kool
- Section of Epidemiology and Biostatistics, School of Population Health, University of Auckland, Auckland, New Zealand.
| | - S Wells
- Section of Epidemiology and Biostatistics, School of Population Health, University of Auckland, Auckland, New Zealand
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Kipping R, Jago R, Metcalfe C, White J, Papadaki A, Campbell R, Hollingworth W, Ward D, Wells S, Brockman R, Nicholson A, Moore L. NAP SACC UK: protocol for a feasibility cluster randomised controlled trial in nurseries and at home to increase physical activity and healthy eating in children aged 2-4 years. BMJ Open 2016; 6:e010622. [PMID: 27053273 PMCID: PMC4823443 DOI: 10.1136/bmjopen-2015-010622] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 03/03/2016] [Accepted: 03/07/2016] [Indexed: 11/08/2022] Open
Abstract
INTRODUCTION Systematic reviews have identified the lack of intervention studies with young children to prevent obesity. This feasibility study examines the feasibility and acceptability of adapting the Nutrition and Physical Activity Self-Assessment for Child Care (NAP SACC) intervention in the UK to inform a full-scale trial. METHODS AND ANALYSIS A feasibility cluster randomised controlled trial in 12 nurseries in England, with 6 randomly assigned to the adapted NAP SACC UK intervention: nursery staff will receive training and support from an NAP SACC UK Partner to review the nursery environment (nutrition, physical activity, sedentary behaviours and oral health) and set goals for making changes. Parents will be invited to participate in a digital media-based home component to set goals for making changes in the home. As this is a feasibility study, the sample size was not based on a power calculation but will indicate the likely response rates and intracluster correlations. Measures will be assessed at baseline and 8-10 months later. We will estimate the recruitment rate of nurseries and children and adherence to the intervention and data. Nursery measurements will include the Environmental Policy Assessment and Observation score and the nursery staff's review of the nursery environment. Child measurements will include height and weight to calculate z-score body mass index (zBMI), accelerometer-determined minutes of moderate-to-vigorous physical activity per day and sedentary time, and diet using the Child and Diet Evaluation Tool. Questionnaires with nursery staff and parents will measure mediators. A process evaluation will assess fidelity of intervention delivery and views of participants. ETHICS AND DISSEMINATION Ethical approval for this study was given by Wales 3 NHS Research Ethics Committee. Findings will be made available through publication in peer-reviewed journals, at conferences and to participants via the University of Bristol website. Data will be available from the University of Bristol Research Data Repository. TRIAL REGISTRATION NUMBER ISRCTN16287377.
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Affiliation(s)
- R Kipping
- School of Social and Community Medicine, University of Bristol, Bristol, UK
| | - R Jago
- Centre for Exercise, Nutrition and Health Sciences, School for Policy Studies, University of Bristol, Bristol, UK
| | - C Metcalfe
- School of Social and Community Medicine, University of Bristol, Bristol, UK Bristol Randomised Trials Collaboration, Bristol, UK
| | - J White
- South East Wales Trials Unit, School of Medicine, Cardiff University, Cardiff, UK
| | - A Papadaki
- Centre for Exercise, Nutrition and Health Sciences, School for Policy Studies, University of Bristol, Bristol, UK
| | - R Campbell
- School of Social and Community Medicine, University of Bristol, Bristol, UK
| | - W Hollingworth
- School of Social and Community Medicine, University of Bristol, Bristol, UK
| | - D Ward
- Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - S Wells
- School of Social and Community Medicine, University of Bristol, Bristol, UK
| | - R Brockman
- School of Social and Community Medicine, University of Bristol, Bristol, UK
| | - A Nicholson
- School of Social and Community Medicine, University of Bristol, Bristol, UK
| | - L Moore
- MRC/CSO Social and Public Health Sciences Unit, University of Glasgow, Glasgow, UK
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Klapperich M, Wells S, Ziemlewicz T, Hinshaw J, Lubner M, Brace C, Abel E, Best S, Lee F. Percutaneous microwave ablation of 100 T1a renal cell carcinoma: short and intermediate term efficacy with emphasis on tumor complexity and mitigation of complications. J Vasc Interv Radiol 2016. [DOI: 10.1016/j.jvir.2015.12.213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Carberry G, Smolock A, Cristescu M, Ziemlewicz T, Wells S, Hinshaw J, Lubner M, Brace C, Lee F. Percutaneous microwave ablation of liver tumors near the heart: safety and efficacy. J Vasc Interv Radiol 2016. [DOI: 10.1016/j.jvir.2015.12.214] [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] Open
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Godden SM, Wells S, Donahue M, Stabel J, Oakes JM, Sreevatsan S, Fetrow J. Effect of feeding heat-treated colostrum on risk for infection with Mycobacterium avium ssp. paratuberculosis, milk production, and longevity in Holstein dairy cows. J Dairy Sci 2016; 98:5630-41. [PMID: 26074228 DOI: 10.3168/jds.2015-9443] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Accepted: 04/19/2015] [Indexed: 11/19/2022]
Abstract
In summer 2007, a randomized controlled field trial was initiated on 6 large Midwest commercial dairy farms to investigate the effect of feeding heat-treated (HT) colostrum on transmission of Mycobacterium avium ssp. paratuberculosis (MAP) and on future milk production and longevity within the herd. On each farm, colostrum was collected daily from fresh cows, pooled, divided into 2 aliquots, and then 1 aliquot was heat-treated in a commercial batch pasteurizer at 60°C for 60min. A sample from each batch of colostrum was collected for PCR testing (MAP-positive vs. MAP-negative). Newborn heifer calves were removed from the dam within 30 to 60min of birth and systematically assigned to be fed 3.8 L of either fresh (FR; n=434) or heat-treated (HT; n=490) colostrum within 2h of birth. After reaching adulthood (>2 yr old), study animals were tested once annually for 3 yr (2010, 2011, 2012) for infection with MAP using serum ELISA and fecal culture. Lactation records describing milk production data and death or culling events were collected during the 3-yr testing period. Multivariable model logistic and linear regression was used to investigate the effect of feeding HT colostrum on risk for testing positive to MAP during the 3-yr testing period (positive/negative; logistic regression) and on first and second lactation milk yield (kg/cow; linear regression), respectively. Cox proportional hazards regression was used to investigate the effect of feeding HT colostrum on risk and time to removal from the herd. Fifteen percent of all study animals were fed PCR-positive colostrum. By the end of the 3-yr testing period, no difference was noted in the proportion of animals testing positive for MAP, with either serum ELISA or fecal culture, when comparing the HT group (10.5%) versus the FR group (8.1%). There was no effect of treatment on first- (HT=11.797kg; FR=11,671kg) or second-lactation (HT=11,013kg; FR=11,235kg) milk production. The proportion of cows leaving the herd by study conclusion was not different for animals originally fed HT (68.0%) versus FR (71.7%) colostrum. Although a previous study showed that feeding HT colostrum (60°C for 60min) produces short-term benefits, including improved passive transfer of IgG and reduced morbidity in the preweaning period, the current study found no benefit of feeding HT colostrum on long-term outcomes including risk for transmission of Mycobacterium avium ssp. paratuberculosis, milk production in the first and second lactation, and longevity within the herd.
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Affiliation(s)
- S M Godden
- Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, Saint Paul 55108.
| | - S Wells
- Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, Saint Paul 55108
| | - M Donahue
- Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, Saint Paul 55108
| | - J Stabel
- USDA, Agricultural Research Service, National Animal Disease Center, Ames, IA 50010
| | - J M Oakes
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis 55454
| | - S Sreevatsan
- Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, Saint Paul 55108
| | - J Fetrow
- Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, Saint Paul 55108
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Horner D, Wells S, Bonnici K, Reeves N, Parris RJ. RAISING THE BAR FOR EXCLUSION OF ACUTE VENOUS THROMBOEMBOLISM IN THE EMERGENCY DEPARTMENT: Table 1. Arch Emerg Med 2015. [DOI: 10.1136/emermed-2015-205372.19] [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: 11/03/2022]
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Jago R, Rawlins E, Kipping RR, Wells S, Chittleborough C, Peters TJ, Mytton J, Lawlor DA, Campbell R. Lessons learned from the AFLY5 RCT process evaluation: implications for the design of physical activity and nutrition interventions in schools. BMC Public Health 2015; 15:946. [PMID: 26399328 PMCID: PMC4580292 DOI: 10.1186/s12889-015-2293-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 09/16/2015] [Indexed: 11/26/2022] Open
Abstract
Background Systematic reviews have highlighted that school-based diet and physical activity (PA) interventions have had limited effects. This study used qualitative methods to examine how the effectiveness of future primary (elementary) school diet and PA interventions could be improved. Methods Data are from the Active For Life Year 5 (AFLY5) study, which was a cluster randomised trial conducted in 60 UK primary schools. Year 5 (8–9 years of age) pupils in the 30 intervention schools received a 12-month intervention. At the end of the intervention period, interviews were conducted with: 28 Year 5 teachers (including 8 teachers from control schools); 10 Headteachers (6 control); 31 parents (15 control). Focus groups were conducted with 70 year 5 pupils (34 control). Topics included how the AFLY5 intervention could have been improved and how school-based diet and PA interventions should optimally be delivered. All interviews and focus groups were transcribed and thematically analysed across participant groups. Results Analysis yielded four themes. Child engagement: Data suggested that programme success is likely to be enhanced if children feel that they have a sense of autonomy over their own behaviour and if the activities are practical. School: Finding a project champion within the school would enhance intervention effectiveness. Embedding diet and physical activity content across the curriculum and encouraging teachers to role model good diet and physical activity behaviours were seen as important. Parents and community: Encouraging parents and community members into the school was deemed likely to enhance the connection between schools, families and communities, and “create a buzz” that was likely to enhance behaviour change. Government/Policy: Data suggested that there was a need to adequately resource health promotion activity in schools and to increase the infrastructure to facilitate diet and physical activity knowledge and practice. Discussion and Conclusions Future primary school diet and PA programmes should find ways to increase child engagement in the programme content, identify programme champions, encourage teachers to work as role models, engage parents and embed diet and PA behaviour change across the curriculum. However, this will require adequate funding and cost-effectiveness will need to be established. Trial registration ISRCTN50133740
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Affiliation(s)
- R Jago
- Centre for Exercise, Nutrition and Health Sciences, School for Policy Studies, University of Bristol, Bristol, BS8 1TZ, UK.
| | - E Rawlins
- School of Social and Community Medicine, University of Bristol, Bristol, BS8 2PS, UK.
| | - R R Kipping
- School of Social and Community Medicine, University of Bristol, Bristol, BS8 2PS, UK.
| | - S Wells
- School of Social and Community Medicine, University of Bristol, Bristol, BS8 2PS, UK.
| | - C Chittleborough
- School of Population Health, University of Adelaide, Adelaide, SA, 5005, Australia.
| | - T J Peters
- School of Clinical Sciences, University of Bristol, Bristol, BS2 8DZ, UK.
| | - J Mytton
- Public Health, Bristol City Council, Avonquay Office, Cumberland Basin, Bristol, BS1 6XL, UK.
| | - D A Lawlor
- School of Social and Community Medicine, University of Bristol, Bristol, BS8 2PS, UK. .,MRC Integrative Epidemiology Unit at the University of Bristol, Bristol, BS8 2BN, UK.
| | - R Campbell
- School of Social and Community Medicine, University of Bristol, Bristol, BS8 2PS, UK.
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Cristescu M, Abel EJ, Wells S, Ziemlewicz TJ, Hedican SP, Lubner MG, Hinshaw JL, Brace CL, Lee FT. Percutaneous Microwave Ablation of Renal Angiomyolipomas. Cardiovasc Intervent Radiol 2015; 39:433-40. [PMID: 26390876 DOI: 10.1007/s00270-015-1201-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 07/18/2015] [Indexed: 12/12/2022]
Abstract
PURPOSE To evaluate the safety and efficacy of US-guided percutaneous microwave (MW) ablation in the treatment of renal angiomyolipoma (AML). MATERIALS AND METHODS From January 2011 to April 2014, seven patients (5 females and 2 males; mean age 51.4) with 11 renal AMLs (9 sporadic type and 2 tuberous sclerosis associated) with a mean size of 3.4 ± 0.7 cm (range 2.4-4.9 cm) were treated with high-powered, gas-cooled percutaneous MW ablation under US guidance. Tumoral diameter, volume, and CT/MR enhancement were measured on pre-treatment, immediate post-ablation, and delayed post-ablation imaging. Clinical symptoms and creatinine were assessed on follow-up visits. RESULTS All ablations were technically successful and no major complications were encountered. Mean ablation parameters were ablation power of 65 W (range 60-70 W), using 456 mL of hydrodissection fluid per patient, over 4.7 min (range 3-8 min). Immediate post-ablation imaging demonstrated mean tumor diameter and volume decreases of 1.8% (3.4-3.3 cm) and 1.7% (27.5-26.3 cm(3)), respectively. Delayed imaging follow-up obtained at a mean interval of 23.1 months (median 17.6; range 9-47) demonstrated mean tumor diameter and volume decreases of 29% (3.4-2.4 cm) and 47% (27.5-12.1 cm(3)), respectively. Tumoral enhancement decreased on immediate post-procedure and delayed imaging by CT/MR parameters, indicating decreased tumor vascularity. No patients required additional intervention and no patients experienced spontaneous bleeding post-ablation. CONCLUSION Our early experience with high-powered, gas-cooled percutaneous MW ablation demonstrates it to be a safe and effective modality to devascularize and decrease the size of renal AMLs.
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Affiliation(s)
- Mircea Cristescu
- Department of Radiology, University of Wisconsin, E3/366 CSC, 600 Highland Avenue, Madison, WI, USA.
| | - E Jason Abel
- Department of Urology, University of Wisconsin, Madison, WI, USA.
| | - Shane Wells
- Department of Radiology, University of Wisconsin, E3/366 CSC, 600 Highland Avenue, Madison, WI, USA.
| | - Timothy J Ziemlewicz
- Department of Radiology, University of Wisconsin, E3/366 CSC, 600 Highland Avenue, Madison, WI, USA.
| | - Sean P Hedican
- Department of Urology, University of Wisconsin, Madison, WI, USA.
| | - Megan G Lubner
- Department of Radiology, University of Wisconsin, E3/366 CSC, 600 Highland Avenue, Madison, WI, USA.
| | - J Louis Hinshaw
- Department of Radiology, University of Wisconsin, E3/366 CSC, 600 Highland Avenue, Madison, WI, USA.
| | - Christopher L Brace
- Department of Radiology, University of Wisconsin, E3/366 CSC, 600 Highland Avenue, Madison, WI, USA. .,Department of Medical Physics, University of Wisconsin, Madison, WI, USA. .,Department of Biomedical Engineering, University of Wisconsin, Madison, WI, USA.
| | - Fred T Lee
- Department of Radiology, University of Wisconsin, E3/366 CSC, 600 Highland Avenue, Madison, WI, USA. .,Department of Biomedical Engineering, University of Wisconsin, Madison, WI, USA.
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Heise I, Fisher SP, Banks GT, Wells S, Peirson SN, Foster RG, Nolan PM. Sleep-like behavior and 24-h rhythm disruption in the Tc1 mouse model of Down syndrome. Genes Brain Behav 2015; 14:209-16. [PMID: 25558895 PMCID: PMC4409853 DOI: 10.1111/gbb.12198] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 12/10/2014] [Accepted: 12/17/2014] [Indexed: 12/11/2022]
Abstract
Down syndrome is a common disorder associated with intellectual disability in humans. Among a variety of severe health problems, patients with Down syndrome exhibit disrupted sleep and abnormal 24-h rest/activity patterns. The transchromosomic mouse model of Down syndrome, Tc1, is a trans-species mouse model for Down syndrome, carrying most of human chromosome 21 in addition to the normal complement of mouse chromosomes and expresses many of the phenotypes characteristic of Down syndrome. To date, however, sleep and circadian rhythms have not been characterized in Tc1 mice. Using both circadian wheel-running analysis and video-based sleep scoring, we showed that these mice exhibited fragmented patterns of sleep-like behaviour during the light phase of a 12:12-h light/dark (LD) cycle with an extended period of continuous wakefulness at the beginning of the dark phase. Moreover, an acute light pulse during night-time was less effective in inducing sleep-like behaviour in Tc1 animals than in wild-type controls. In wheel-running analysis, free running in constant light (LL) or constant darkness (DD) showed no changes in the circadian period of Tc1 animals although they did express subtle behavioural differences including a reduction in total distance travelled on the wheel and differences in the acrophase of activity in LD and in DD. Our data confirm that Tc1 mice express sleep-related phenotypes that are comparable with those seen in Down syndrome patients with moderate disruptions in rest/activity patterns and hyperactive episodes, while circadian period under constant lighting conditions is essentially unaffected.
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Affiliation(s)
- I Heise
- Harwell Science and Innovation Campus, MRC Harwell, Harwell, UK
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Dekarske A, Lubner M, Kitchin D, Kim D, Hinshaw J, Lee F, Pickhardt P, Robbins J, Wells S, Ziemlewicz T. Analysis of non-diagnostic CT-fluoroscopy guided lung biopsies at an academic health center: a 6 year review. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Wells S. Foreword. Recent Results Cancer Res 2015; 204:v-vi. [PMID: 26714327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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Mehta S, Wells S, Jackson R, Harrison J, Kerr A. Removal of special authority requirements for clopidogrel improved optimal care following percutaneous coronary intervention across sociodemographic groups. Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2015.04.132] [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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Wells S, Rozenblum R, Park A, Dunn M, Bates DW. Personal health records for patients with chronic disease: a major opportunity. Appl Clin Inform 2014; 5:416-29. [PMID: 25024758 DOI: 10.4338/aci-2014-01-ra-0002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [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: 01/03/2014] [Accepted: 03/05/2014] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Personal health records (PHRs) connected to a physician's electronic health record system hold substantial promise for supporting and engaging patients with chronic disease. OBJECTIVES To explore how U.S. health care organizations are currently utilizing PHRs for chronic disease populations. METHODS A mixed methods study including semi-structured interviews and a questionnaire was conducted. A purposive sample was developed of health care organizations which were recognized as exemplars for PHRs and were high performers in national patient satisfaction surveys (H-CAHPS or CAHPS). Within each organization, participants were health IT leaders or those managing high-risk or chronic disease populations. RESULTS Interviews were conducted with 30 informants and completed questionnaires were received from 16 organizations (84% response rate). Most PHRs allowed patients to access health records and educational material, message their provider, renew prescriptions and request appointments. Patient generated data was increasingly being sought and combined with messaging, resulted in greater understanding of patient health and functioning outside of the clinic visit. However for chronic disease populations, there was little targeted involvement in PHR design and few tools to help interpret and manage their conditions beyond those offered for all. The PHR was largely uncoupled from high risk population management interventions and no clear framework for future PHR development emerged. CONCLUSION This technology is currently underutilized and represents a major opportunity given the potential benefits of patient engagement and shared decision making. A coherent patient-centric PHR design and evaluation strategy is required to realize its potential and maximize this natural hub for multidisciplinary care co-ordination.
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Affiliation(s)
- S Wells
- Section of Epidemiology and Biostatistics, School of Population Health, University of Auckland , Auckland, New Zealand ; Department of General Internal Medicine, Brigham and Women's Hospital, Harvard Medical School , Boston, Massachusetts
| | - R Rozenblum
- Department of General Internal Medicine, Brigham and Women's Hospital, Harvard Medical School , Boston, Massachusetts
| | - A Park
- Department of General Internal Medicine, Brigham and Women's Hospital, Harvard Medical School , Boston, Massachusetts
| | - M Dunn
- Department of Health Care Policy and Management, Harvard School of Public Health , Boston, Massachusetts
| | - D W Bates
- Department of General Internal Medicine, Brigham and Women's Hospital, Harvard Medical School , Boston, Massachusetts ; Department of Health Care Policy and Management, Harvard School of Public Health , Boston, Massachusetts
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Kerr A, Mustafa A, Sculley M, Broadbent E, Wells S. Your Heart Forecast Tool Patient Evaluation: A Randomised Controlled Trial. Heart Lung Circ 2013. [DOI: 10.1016/j.hlc.2013.04.036] [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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Nakamura SN, Matsumura A, Okayasu Y, Seva T, Rodriguez VM, Baturin P, Yuan L, Acha A, Ahmidouch A, Androic D, Asaturyan A, Asaturyan R, Baker OK, Benmokhtar F, Bosted P, Carlini R, Chen C, Christy M, Cole L, Danagoulian S, Daniel A, Dharmawardane V, Egiyan K, Elaasar M, Ent R, Fenker H, Fujii Y, Furic M, Gan L, Gaskell D, Gasparian A, Gibson EF, Gogami T, Gueye P, Han Y, Hashimoto O, Hiyama E, Honda D, Horn T, Hu B, Hungerford EV, Jayalath C, Jones M, Johnston K, Kalantarians N, Kanda H, Kaneta M, Kato F, Kato S, Kawama D, Keppel C, Lan KJ, Luo W, Mack D, Maeda K, Malace S, Margaryan A, Marikyan G, Markowitz P, Maruta T, Maruyama N, Miyoshi T, Mkrtchyan A, Mkrtchyan H, Nagao S, Navasardyan T, Niculescu G, Niculescu MI, Nomura H, Nonaka K, Ohtani A, Oyamada M, Perez N, Petkovic T, Randeniya S, Reinhold J, Roche J, Sato Y, Segbefia EK, Simicevic N, Smith G, Song Y, Sumihama M, Tadevosyan V, Takahashi T, Tang L, Tsukada K, Tvaskis V, Vulcan W, Wells S, Wood SA, Yan C, Zhamkochyan S. Observation of the (Λ)(7)He hypernucleus by the (e, e'K+) reaction. Phys Rev Lett 2013; 110:012502. [PMID: 23383783 DOI: 10.1103/physrevlett.110.012502] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Indexed: 06/01/2023]
Abstract
An experiment with a newly developed high-resolution kaon spectrometer and a scattered electron spectrometer with a novel configuration was performed in Hall C at Jefferson Lab. The ground state of a neutron-rich hypernucleus, (Λ)(7)He, was observed for the first time with the (e, e'K+) reaction with an energy resolution of ~0.6 MeV. This resolution is the best reported to date for hypernuclear reaction spectroscopy. The (Λ)(7)He binding energy supplies the last missing information of the A = 7, T = 1 hypernuclear isotriplet, providing a new input for the charge symmetry breaking effect of the ΛN potential.
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Affiliation(s)
- S N Nakamura
- Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan
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Godden SM, Smolenski DJ, Donahue M, Oakes JM, Bey R, Wells S, Sreevatsan S, Stabel J, Fetrow J. Heat-treated colostrum and reduced morbidity in preweaned dairy calves: results of a randomized trial and examination of mechanisms of effectiveness. J Dairy Sci 2012; 95:4029-40. [PMID: 22720957 DOI: 10.3168/jds.2011-5275] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Accepted: 03/06/2012] [Indexed: 11/19/2022]
Abstract
A randomized controlled clinical trial was conducted using 1,071 newborn calves from 6 commercial dairy farms in Minnesota and Wisconsin, with the primary objective being to describe the effects of feeding heat-treated colostrum on serum immunoglobulin G concentration and health in the preweaning period. A secondary objective was to complete a path analysis to identify intermediate factors that may explain how feeding heat-treated colostrum reduced the risk for illness. On each farm, colostrum was collected each day, pooled, and divided into 2 aliquots; then, one aliquot was heat-treated in a commercial batch pasteurizer at 60°C for 60 min. Samples of fresh and heat-treated colostrum were collected for standard microbial culture (total plate count and total coliform count, cfu/mL) and for measurement of immunoglobulin G concentrations (mg/mL). Newborn calves were removed from the dam, generally within 30 to 60 min of birth, and systematically assigned to be fed 3.8L of either fresh (FR, n=518) or heat-treated colostrum (HT, n=553) within 2h of birth. Venous blood samples were collected from calves between 1 and 7d of age for measurement of serum IgG concentrations (mg/mL). All treatment and mortality events were recorded by farm staff between birth and weaning. Regression models found that serum IgG concentrations were significantly higher in calves fed HT colostrum (18.0 ± 1.5 mg/mL) compared with calves fed FR colostrum (15.4 ± 1.5 mg/ml). Survival analysis using Cox proportional hazards regression indicated a significant increase in risk for a treatment event (any cause) in calves fed FR colostrum (36.5%, hazard ratio=1.25) compared with calves fed HT colostrum (30.9%). In addition, we observed a significant increase in risk for treatment for scours in calves fed FR colostrum (20.7%, hazard ratio=1.32) compared with calves fed HT colostrum (16.5%). Path analysis suggested that calves fed HT colostrum were at lower risk for illness because the heat-treatment process caused a significant reduction in colostrum total coliform count, which was associated with a reduced risk for illness as a function of improved serum IgG concentrations.
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Affiliation(s)
- S M Godden
- Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, St. Paul 55108, USA.
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Kool B, King V, Ameratunga S, Wells S. IMPROVING THE CARE OF CHILDREN PRESENTING WITH MILD TRAUMATIC BRAIN INJURY (MTBI) TO EMERGENCY CARE SETTINGS: CLINICIANS ATTITUDES AND PERCEPTIONS OF CARE. Inj Prev 2012. [DOI: 10.1136/injuryprev-2012-040580g.19] [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: 11/04/2022]
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Tran A, Skoranski M, Wells S, Hoffman J. Spacing and set size effects in MOT may reflect different underlying mechanisms. J Vis 2012. [DOI: 10.1167/12.9.555] [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] Open
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McLean S, Wells S, Postell E, Doran M, Hoffman J. Do the two cerebral hemispheres act as independent tracking mechanisms? J Vis 2012. [DOI: 10.1167/12.9.554] [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] Open
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McCarron N, Meystre C, Wells S, Jones A, Gittoes N, Armour K, Hodson J, Webster C. Hypovitaminosis D in Hospice patients in a Caucasian West Midlands Population. BMJ Support Palliat Care 2012. [DOI: 10.1136/bmjspcare-2012-000264.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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