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Gunsaulus M, Wang L, Haack L, Christopher A, Feingold B, Squires J, Horslen S, Hoskoppal A, Rose-Felker K, West S, Trucco S, Squires J, Olivieri L, Kreutzer J, Goldstein B, Alsaied T. Cardiac MRI-Derived Inferior Vena Cava Cross-Sectional Area Correlates with Measures of Fontan-Associated Liver Disease. Pediatr Cardiol 2024; 45:909-920. [PMID: 36454265 DOI: 10.1007/s00246-022-03054-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 11/15/2022] [Indexed: 12/05/2022]
Abstract
There is currently no clear consensus on screening techniques to evaluate the presence or severity of Fontan-associated liver disease (FALD). Cardiac MRI (CMR) is used routinely for post-Fontan surveillance, but CMR-derived measures that relate to the severity of FALD are not yet defined. This was a cross-sectional single-center study of post-Fontan patients who underwent a CMR. CMR exams were re-analyzed by a single pediatric cardiologist. Surrogates of FALD included Gamma-Glutamyl Transferase (GGT), Fibrosis-4 laboratory score (FIB-4), and imaging findings. Findings consistent with cirrhosis on liver ultrasound included increased liver echogenicity and/or nodularity. Statistical analyses were performed to investigate potential relationships between CMR parameters and markers of FALD. Sixty-one patients were included. A larger inferior vena cava cross-sectional area (IVC-CSA) indexed to height was significantly associated with a higher FIB-4 score (Spearman's ρ = 0.28, p = 0.04), a higher GGT level (Spearman's ρ = 0.40, p = 0.02), and findings consistent with cirrhosis on liver ultrasound (OR 1.17, 95% CI: (1.01, 1.35), p = 0.04). None of the other CMR parameters were associated with markers of FALD. A larger indexed IVC-CSA was associated with higher systemic ventricle end-diastolic pressure (EDP) on cardiac catheterization (Spearman's ρ = 0.39, p = 0.018) as well as older age (Spearman's ρ = 0.46, p = < 0.001). Indexed IVC-CSA was the only CMR parameter that was associated with markers of FALD. This measure has the potential to serve as an additional non-invasive tool to improve screening strategies for FALD.
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Affiliation(s)
- Megan Gunsaulus
- Pediatric Cardiology, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, 5th Floor Faculty Pavilion, Pittsburgh, PA, 15224, USA.
| | - Li Wang
- Epidemiology Data Center, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA
| | - Lindsey Haack
- Pediatric Cardiology, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, 5th Floor Faculty Pavilion, Pittsburgh, PA, 15224, USA
| | - Adam Christopher
- Pediatric Cardiology, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, 5th Floor Faculty Pavilion, Pittsburgh, PA, 15224, USA
| | - Brian Feingold
- Pediatric Cardiology, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, 5th Floor Faculty Pavilion, Pittsburgh, PA, 15224, USA
| | - James Squires
- Pediatric Gastroenterology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Simon Horslen
- Pediatric Gastroenterology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Arvind Hoskoppal
- Pediatric Cardiology, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, 5th Floor Faculty Pavilion, Pittsburgh, PA, 15224, USA
| | - Kirsten Rose-Felker
- Pediatric Cardiology, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, 5th Floor Faculty Pavilion, Pittsburgh, PA, 15224, USA
| | - Shawn West
- Pediatric Cardiology, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, 5th Floor Faculty Pavilion, Pittsburgh, PA, 15224, USA
| | - Sara Trucco
- Pediatric Cardiology, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, 5th Floor Faculty Pavilion, Pittsburgh, PA, 15224, USA
| | - Judy Squires
- Pediatric Radiology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Laura Olivieri
- Pediatric Cardiology, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, 5th Floor Faculty Pavilion, Pittsburgh, PA, 15224, USA
| | - Jacqueline Kreutzer
- Pediatric Cardiology, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, 5th Floor Faculty Pavilion, Pittsburgh, PA, 15224, USA
| | - Bryan Goldstein
- Pediatric Cardiology, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, 5th Floor Faculty Pavilion, Pittsburgh, PA, 15224, USA
| | - Tarek Alsaied
- Pediatric Cardiology, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, 5th Floor Faculty Pavilion, Pittsburgh, PA, 15224, USA
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Wadhwani SI, Kruse G, Squires J, Ebel N, Gupta N, Campbell K, Hsu E, Zielsdorf S, Vittorio J, Desai DM, Bucuvalas JC, Gottlieb LM, Lai JC. Caregiver Perceptions of Social Risk Screening in Pediatric Liver Transplantation: From the Multicenter SOCIAL-Tx Study. Transplantation 2024; 108:940-946. [PMID: 37831642 PMCID: PMC10963151 DOI: 10.1097/tp.0000000000004835] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2023]
Abstract
BACKGROUND The social determinants of health contribute to adverse post-liver transplant outcomes. Identifying unmet social risks may enable transplant teams to improve long-term outcomes for at-risk children. However, providers may feel uncomfortable asking about household-level social risks in the posttransplant period because they might make their patients/families uncomfortable. METHODS We conducted a mixed-methods analysis of caregiver participants (ie, parents/guardians of pediatric liver transplant recipients) in the Social and Contextual Impact on Children Undergoing Liver Transplantation study to assess their perceptions of provider-based social risk screening. Participants (N = 109) completed a 20-min social determinants of health questionnaire that included questions on the acceptability of being asked intimate social risk questions. A subset of participants (N = 37) engaged in an in-depth qualitative interview to share their perceptions of social risk screening. RESULTS Of 109 participants across 9 US transplant centers, 60% reported financial strain and 30% reported at least 1 material economic hardship (eg, food insecurity, housing instability). Overall, 65% of respondents reported it very or somewhat appropriate and 25% reported being neutral to being screened for social risks in a liver transplant setting. In qualitative analyses, participants reported trust in the providers and a clear understanding of the intention of the screening as prerequisites for liver transplant teams to perform social risk screening. CONCLUSIONS Only a small minority of caregivers found social risk screening unacceptable. Pediatric liver transplant programs should implement routine social risk screening and prioritize the patient and family voices when establishing a screening program to ensure successful implementation.
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Affiliation(s)
| | - Gina Kruse
- Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - James Squires
- University of Pittsburgh Medical Center, Pittsburgh, PA
| | | | | | | | - Evelyn Hsu
- Seattle Children’s Hospital, Seattle, WA
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3
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Ashokkumar C, Ningappa M, Raghu V, Mazariegos G, Higgs BW, Morgan P, Remaley L, Fazzolare Martin T, Holzer P, Trostle K, Xu Q, Zeevi A, Squires J, Soltys K, Horslen S, Khanna A, Ganoza A, Sindhi R. Enhanced Donor Antigen Presentation by B Cells Predicts Acute Cellular Rejection and Late Outcomes After Transplantation. Transplant Direct 2024; 10:e1589. [PMID: 38414976 PMCID: PMC10898653 DOI: 10.1097/txd.0000000000001589] [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] [Received: 05/31/2023] [Revised: 10/16/2023] [Accepted: 11/11/2023] [Indexed: 02/29/2024] Open
Abstract
Background Enhanced B-cell presentation of donor alloantigen relative to presentation of HLA-mismatched reference alloantigen is associated with acute cellular rejection (ACR), when expressed as a ratio called the antigen presenting index (API) in an exploratory cohort of liver and intestine transplant (LT and IT) recipients. Methods To test clinical performance, we measured the API using the previously described 6-h assay in 84 LT and 54 IT recipients with median age 3.3 y (0.05-23.96). Recipients experiencing ACR within 60 d after testing were termed rejectors. Results We first confirmed that B-cell uptake and presentation of alloantigen induced and thus reflected the alloresponse of T-helper cells, which were incubated without and with cytochalasin and primaquine to inhibit antigen uptake and presentation, respectively. Transplant recipients included 76 males and 62 females. Rejectors were tested at median 3.6 d before diagnosis. The API was higher among rejectors compared with nonrejectors (2.2 ± 0.2 versus 0.6 ± 0.04, P value = 1.7E-09). In logistic regression and receiver-operating-characteristic analysis, API ≥1.1 achieved sensitivity, specificity, and positive and negative predictive values for predicting ACR in 99 training set samples. Corresponding metrics ranged from 80% to 88% in 32 independent posttransplant samples, and 73% to 100% in 20 independent pretransplant samples. In time-to-event analysis, API ≥1.1 predicted higher incidence of late donor-specific anti-HLA antibodies after API measurements in LT recipients (P = 0.011) and graft loss in IT recipients (P = 0.008), compared with recipients with API <1.1, respectively. Conclusions Enhanced donor antigen presentation by circulating B cells predicts rejection after liver or intestine transplantation as well as higher incidence of DSA and graft loss late after transplantation.
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Affiliation(s)
- Chethan Ashokkumar
- Department of Surgery, Hillman Center for Pediatric Transplantation, UPMC Children’s Hospital of Pittsburgh and the University of Pittsburgh, PA
| | - Mylarappa Ningappa
- Department of Surgery, Hillman Center for Pediatric Transplantation, UPMC Children’s Hospital of Pittsburgh and the University of Pittsburgh, PA
| | - Vikram Raghu
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, UPMC Children’s Hospital Pittsburgh, PA
| | - George Mazariegos
- Department of Surgery, Hillman Center for Pediatric Transplantation, UPMC Children’s Hospital of Pittsburgh and the University of Pittsburgh, PA
| | - Brandon W. Higgs
- Department of Surgery, Hillman Center for Pediatric Transplantation, UPMC Children’s Hospital of Pittsburgh and the University of Pittsburgh, PA
| | - Paul Morgan
- Department of Surgery, Hillman Center for Pediatric Transplantation, UPMC Children’s Hospital of Pittsburgh and the University of Pittsburgh, PA
| | - Lisa Remaley
- Department of Surgery, Hillman Center for Pediatric Transplantation, UPMC Children’s Hospital of Pittsburgh and the University of Pittsburgh, PA
| | - Tamara Fazzolare Martin
- Department of Surgery, Hillman Center for Pediatric Transplantation, UPMC Children’s Hospital of Pittsburgh and the University of Pittsburgh, PA
| | - Pamela Holzer
- Department of Surgery, Hillman Center for Pediatric Transplantation, UPMC Children’s Hospital of Pittsburgh and the University of Pittsburgh, PA
| | - Kevin Trostle
- Department of Surgery, Hillman Center for Pediatric Transplantation, UPMC Children’s Hospital of Pittsburgh and the University of Pittsburgh, PA
| | - Qingyong Xu
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA
| | - Adriana Zeevi
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA
| | - James Squires
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, UPMC Children’s Hospital Pittsburgh, PA
| | - Kyle Soltys
- Department of Surgery, Hillman Center for Pediatric Transplantation, UPMC Children’s Hospital of Pittsburgh and the University of Pittsburgh, PA
| | - Simon Horslen
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, UPMC Children’s Hospital Pittsburgh, PA
| | - Ajai Khanna
- Department of Surgery, Hillman Center for Pediatric Transplantation, UPMC Children’s Hospital of Pittsburgh and the University of Pittsburgh, PA
| | - Armando Ganoza
- Department of Surgery, Hillman Center for Pediatric Transplantation, UPMC Children’s Hospital of Pittsburgh and the University of Pittsburgh, PA
| | - Rakesh Sindhi
- Department of Surgery, Hillman Center for Pediatric Transplantation, UPMC Children’s Hospital of Pittsburgh and the University of Pittsburgh, PA
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4
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Preiksaitis J, Allen U, Bollard CM, Dharnidharka VR, Dulek DE, Green M, Martinez OM, Metes DM, Michaels MG, Smets F, Chinnock RE, Comoli P, Danziger-Isakov L, Dipchand AI, Esquivel CO, Ferry JA, Gross TG, Hayashi RJ, Höcker B, L'Huillier AG, Marks SD, Mazariegos GV, Squires J, Swerdlow SH, Trappe RU, Visner G, Webber SA, Wilkinson JD, Maecker-Kolhoff B. The IPTA Nashville Consensus Conference on Post-Transplant lymphoproliferative disorders after solid organ transplantation in children: III - Consensus guidelines for Epstein-Barr virus load and other biomarker monitoring. Pediatr Transplant 2024; 28:e14471. [PMID: 37294621 DOI: 10.1111/petr.14471] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/10/2022] [Accepted: 01/02/2023] [Indexed: 06/11/2023]
Abstract
The International Pediatric Transplant Association convened an expert consensus conference to assess current evidence and develop recommendations for various aspects of care relating to post-transplant lymphoproliferative disorders after solid organ transplantation in children. In this report from the Viral Load and Biomarker Monitoring Working Group, we reviewed the existing literature regarding the role of Epstein-Barr viral load and other biomarkers in peripheral blood for predicting the development of PTLD, for PTLD diagnosis, and for monitoring of response to treatment. Key recommendations from the group highlighted the strong recommendation for use of the term EBV DNAemia instead of "viremia" to describe EBV DNA levels in peripheral blood as well as concerns with comparison of EBV DNAemia measurement results performed at different institutions even when tests are calibrated using the WHO international standard. The working group concluded that either whole blood or plasma could be used as matrices for EBV DNA measurement; optimal specimen type may be clinical context dependent. Whole blood testing has some advantages for surveillance to inform pre-emptive interventions while plasma testing may be preferred in the setting of clinical symptoms and treatment monitoring. However, EBV DNAemia testing alone was not recommended for PTLD diagnosis. Quantitative EBV DNAemia surveillance to identify patients at risk for PTLD and to inform pre-emptive interventions in patients who are EBV seronegative pre-transplant was recommended. In contrast, with the exception of intestinal transplant recipients or those with recent primary EBV infection prior to SOT, surveillance was not recommended in pediatric SOT recipients EBV seropositive pre-transplant. Implications of viral load kinetic parameters including peak load and viral set point on pre-emptive PTLD prevention monitoring algorithms were discussed. Use of additional markers, including measurements of EBV specific cell mediated immunity was discussed but not recommended though the importance of obtaining additional data from prospective multicenter studies was highlighted as a key research priority.
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Affiliation(s)
- Jutta Preiksaitis
- Division of Infectious Diseases, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Upton Allen
- Division of Infectious Diseases and the Transplant and Regenerative Medicine Center, Department of Paediatrics, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Catherine M Bollard
- Center for Cancer and Immunology Research, Children's National Hospital, The George Washington University, Washington, District of Columbia, USA
| | - Vikas R Dharnidharka
- Department of Pediatrics, Division of Pediatric Nephrology, Hypertension & Pheresis, Washington University School of Medicine & St. Louis Children's Hospital, St. Louis, Missouri, USA
| | - Daniel E Dulek
- Division of Pediatric Infectious Diseases, Monroe Carell Jr. Children's Hospital at Vanderbilt and Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Michael Green
- Division of Pediatric Infectious Diseases, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Olivia M Martinez
- Department of Surgery and Program in Immunology, Stanford University School of Medicine, Stanford, California, USA
| | - Diana M Metes
- Departments of Surgery and Immunology, Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Marian G Michaels
- Division of Pediatric Infectious Diseases, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Françoise Smets
- Pediatric Gastroenterology and Hepatology, Cliniques Universitaires Saint-Luc, UCLouvain, Brussels, Belgium
| | | | - Patrizia Comoli
- Cell Factory & Pediatric Hematology/Oncology, Fondazione IRCCS Policlinico, Pavia, Italy
| | - Lara Danziger-Isakov
- Division of Infectious Disease, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio, USA
| | - Anne I Dipchand
- Labatt Family Heart Centre, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | | | - Judith A Ferry
- Harvard Medical School, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Thomas G Gross
- Center for Cancer and Blood Diseases, Children's Hospital Colorado, Aurora, Colorado, USA
| | - Robert J Hayashi
- Division of Pediatric Hematology/Oncology, St. Louis Children's Hospital, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Britta Höcker
- University Children's Hospital, Pediatrics I, Heidelberg, Germany
| | - Arnaud G L'Huillier
- Faculty of Medicine, Pediatric Infectious Diseases Unit and Laboratory of Virology, Geneva University Hospitals, Geneva, Switzerland
| | - Stephen D Marks
- Department of Paediatric Nephrology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
- NIHR Great Ormond Street Hospital Biomedical Research Centre, University College London, Great Ormond Street Institute of Child Health, London, UK
| | - George Vincent Mazariegos
- Department of Surgery, Hillman Center for Pediatric Transplantation, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - James Squires
- Division of Gastroenterology, Hepatology and Nutrition, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Steven H Swerdlow
- Division of Hematopathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Ralf U Trappe
- Department of Hematology and Oncology, DIAKO Ev. Diakonie-Krankenhaus Bremen, Bremen, Germany
- Department of Internal Medicine II: Hematology and Oncology, University Medical Centre Schleswig-Holstein, Kiel, Germany
| | - Gary Visner
- Division of Pulmonary Medicine, Boston Children's Hospital/Harvard Medical School, Boston, Massachusetts, USA
| | - Steven A Webber
- Department of Pediatrics, Vanderbilt School of Medicine, Nashville, Tennessee, USA
| | - James D Wilkinson
- Department of Pediatrics, Vanderbilt School of Medicine, Nashville, Tennessee, USA
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5
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Sood V, Lee EJ, Raghu V, Reyes-Mugica M, Salgado CM, Squires J, Mazariegos G. Liver transplantation for alpha 1 antitrypsin deficiency (A1ATD) using a heterozygous donor: Outcomes and review of the literature. Pediatr Transplant 2023; 27:e14488. [PMID: 36808684 DOI: 10.1111/petr.14488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 01/02/2023] [Accepted: 02/03/2023] [Indexed: 02/22/2023]
Abstract
INTRODUCTION Alpha 1 antitrypsin deficiency (A1ATD) accounts for 21% of all pediatric liver transplants due to metabolic disease in the western world. Donor heterozygosity has been evaluated in adults but not to a recipient with A1ATD. METHODS The data of patient were retrospectively analyzed and a literature review performed. RESULTS We present a unique case of living related donation from a A1ATD heterozygote female to a child for decompensated cirrhosis due to A1ATD. In the immediate postoperative period, the child had low-alpha 1 antitrypsin levels, but these normalized by 3 months posttransplant. He is currently 19 months post-transplant with no evidence of recurrent disease. CONCLUSION Our case provides initial evidence that A1ATD heterozygote donors may be safely used for pediatric patients with A1ATD, thus expanding the donor pool.
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Affiliation(s)
- Vikrant Sood
- Department of Pediatric Hepatology, Institute of Liver and Biliary Sciences, New Dehli, India
| | - Eliza J Lee
- Department of Surgery, Pediatric Transplant Center, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Vikram Raghu
- Division of Pediatric Gastroenterology, Department of Pediatrics, University of Pittsburgh Medical Center Pittsburgh Children's Hospital, Pittsburgh, Pennsylvania, USA
| | - Miguel Reyes-Mugica
- Department of Pathology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Claudia M Salgado
- Department of Pathology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - James Squires
- Division of Pediatric Gastroenterology, Department of Pediatrics, University of Pittsburgh Medical Center Pittsburgh Children's Hospital, Pittsburgh, Pennsylvania, USA
| | - George Mazariegos
- Division of Transplant Surgery, Department of Surgery, University of Pittsburgh Medical Center Pittsburgh Children's Hospital, Pittsburgh, Pennsylvania, USA
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6
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Leung DH, Devaraj S, Goodrich NP, Chen X, Rajapakshe D, Ye W, Andreev V, Minard CG, Guffey D, Molleston JP, Bass LM, Karpen SJ, Kamath BM, Wang KS, Sundaram SS, Rosenthal P, McKiernan P, Loomes KM, Jensen MK, Horslen SP, Bezerra JA, Magee JC, Merion RM, Sokol RJ, Shneider BL, Alonso E, Bass L, Kelly S, Riordan M, Melin-Aldana H, Bezerra J, Bove K, Heubi J, Miethke A, Tiao G, Denlinger J, Chapman E, Sokol R, Feldman A, Mack C, Narkewicz M, Suchy F, Sundaram SS, Van Hove J, Garcia B, Kauma M, Kocher K, Steinbeiss M, Lovell M, Loomes KM, Piccoli D, Rand E, Russo P, Spinner N, Erlichman J, Stalford S, Pakstis D, King S, Squires R, Sindhi R, Venkat V, Bukauskas K, McKiernan P, Haberstroh L, Squires J, Rosenthal P, Bull L, Curry J, Langlois C, Kim G, Teckman J, Kociela V, Nagy R, Patel S, Cerkoski J, Molleston JP, Bozic M, Subbarao G, Klipsch A, Sawyers C, Cummings O, Horslen SP, Murray K, Hsu E, Cooper K, Young M, Finn L, Kamath BM, Ng V, Quammie C, Putra J, Sharma D, Parmar A, Guthery S, Jensen K, Rutherford A, Lowichik A, Book L, Meyers R, Hall T, Wang KS, Michail S, Thomas D, Goodhue C, Kohli R, Wang L, Soufi N, Thomas D, Karpen S, Gupta N, Romero R, Vos MB, Tory R, Berauer JP, Abramowsky C, McFall J, Shneider BL, Harpavat S, Hertel P, Leung D, Tessier M, Schady D, Cavallo L, Olvera D, Banks C, Tsai C, Thompson R, Doo E, Hoofnagle J, Sherker A, Torrance R, Hall S, Magee J, Merion R, Spino C, Ye W. Serum biomarkers correlated with liver stiffness assessed in a multicenter study of pediatric cholestatic liver disease. Hepatology 2023; 77:530-545. [PMID: 36069569 PMCID: PMC10151059 DOI: 10.1002/hep.32777] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 07/26/2022] [Accepted: 08/03/2022] [Indexed: 01/28/2023]
Abstract
BACKGROUND AND AIMS Detailed investigation of the biological pathways leading to hepatic fibrosis and identification of liver fibrosis biomarkers may facilitate early interventions for pediatric cholestasis. APPROACH AND RESULTS A targeted enzyme-linked immunosorbent assay-based panel of nine biomarkers (lysyl oxidase, tissue inhibitor matrix metalloproteinase (MMP) 1, connective tissue growth factor [CTGF], IL-8, endoglin, periostin, Mac-2-binding protein, MMP-3, and MMP-7) was examined in children with biliary atresia (BA; n = 187), alpha-1 antitrypsin deficiency (A1AT; n = 78), and Alagille syndrome (ALGS; n = 65) and correlated with liver stiffness (LSM) and biochemical measures of liver disease. Median age and LSM were 9 years and 9.5 kPa. After adjusting for covariates, there were positive correlations among LSM and endoglin ( p = 0.04) and IL-8 ( p < 0.001) and MMP-7 ( p < 0.001) in participants with BA. The best prediction model for LSM in BA using clinical and lab measurements had an R2 = 0.437; adding IL-8 and MMP-7 improved R2 to 0.523 and 0.526 (both p < 0.0001). In participants with A1AT, CTGF and LSM were negatively correlated ( p = 0.004); adding CTGF to an LSM prediction model improved R2 from 0.524 to 0.577 ( p = 0.0033). Biomarkers did not correlate with LSM in ALGS. A significant number of biomarker/lab correlations were found in participants with BA but not those with A1AT or ALGS. CONCLUSIONS Endoglin, IL-8, and MMP-7 significantly correlate with increased LSM in children with BA, whereas CTGF inversely correlates with LSM in participants with A1AT; these biomarkers appear to enhance prediction of LSM beyond clinical tests. Future disease-specific investigations of change in these biomarkers over time and as predictors of clinical outcomes will be important.
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Affiliation(s)
- Daniel H Leung
- Division of Gastroenterology, Hepatology, and Nutrition, Texas Children's Hospital, Department of Pediatrics , Baylor College of Medicine , Houston , Texas , USA
| | - Sridevi Devaraj
- Department of Pathology and Immunology , Texas Children's Hospital, Baylor College of Medicine , Houston , Texas , USA
| | - Nathan P Goodrich
- Arbor Research Collaborative for Health , Ann Arbor , Michigan , USA
| | - Xinpu Chen
- Department of Pathology and Immunology , Texas Children's Hospital, Baylor College of Medicine , Houston , Texas , USA
| | - Deepthi Rajapakshe
- Department of Pathology and Immunology , Texas Children's Hospital, Baylor College of Medicine , Houston , Texas , USA
| | - Wen Ye
- Department of Biostatistics , University of Michigan , Ann Arbor , Michigan , USA
| | - Victor Andreev
- Arbor Research Collaborative for Health , Ann Arbor , Michigan , USA
| | - Charles G Minard
- Institute for Clinical and Translational Research , Baylor College of Medicine , Houston , Texas , USA
| | - Danielle Guffey
- Institute for Clinical and Translational Research , Baylor College of Medicine , Houston , Texas , USA
| | - Jean P Molleston
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics , Riley Hospital for Children , Indiana University , Indianapolis , Indiana , USA
| | - Lee M Bass
- Department of Pediatrics , Ann & Robert H. Lurie Children's Hospital of Chicago , Northwestern University Feinberg School of Medicine , Chicago , Illinois , USA
| | - Saul J Karpen
- Division of Gastroenterology, Hepatology, and Nutrition, Children's Healthcare of Atlanta, Department of Pediatrics , Emory University School of Medicine , Atlanta , Georgia , USA
| | - Binita M Kamath
- Division of Gastroenterology, Hepatology and Nutrition , Hospital for Sick Children, University of Toronto , Toronto , Ontario , Canada
| | - Kasper S Wang
- Department of Pediatric Surgery , Children's Hospital Los Angeles , Los Angeles , California , USA
| | - Shikha S Sundaram
- Pediatric Gastroenterology, Hepatology and Nutrition , Children's Hospital Colorado, University of Colorado School of Medicine , Aurora , Colorado , USA
| | - Philip Rosenthal
- Department of Pediatrics , University of California, San Francisco , San Francisco , California , USA
| | - Patrick McKiernan
- Pediatric Gastroenterology, Hepatology and Nutrition , Children's Hospital of Pittsburgh , Pittsburg , Pennsylvania , USA
| | - Kathleen M Loomes
- Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics , The Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania , Philadelphia , Pennsylvania , USA
| | - M Kyle Jensen
- Pediatric Gastroenterology, Hepatology and Nutrition , University of Utah School of Medicine , Salt Lake City , Utah , USA
| | - Simon P Horslen
- Pediatric Gastroenterology, Hepatology and Nutrition , Seattle Children's Hospital, University of Washington School of Medicine , Seattle , Washington , USA
| | - Jorge A Bezerra
- Pediatric Gastroenterology, Hepatology and Nutrition , Cincinnati Children's Medical Center, University of Cincinnati School of Medicine , Cincinnati , Ohio , USA
| | - John C Magee
- University of Michigan Hospitals and Health Centers , Ann Arbor , Michigan , USA
| | - Robert M Merion
- Arbor Research Collaborative for Health , Ann Arbor , Michigan , USA
| | - Ronald J Sokol
- Pediatric Gastroenterology, Hepatology and Nutrition , Children's Hospital Colorado, University of Colorado School of Medicine , Aurora , Colorado , USA
| | - Benjamin L Shneider
- Division of Gastroenterology, Hepatology, and Nutrition, Texas Children's Hospital, Department of Pediatrics , Baylor College of Medicine , Houston , Texas , USA
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Rasmussen SK, Lemoine CP, Superina R, Sayed B, Goldaracena N, Soltys KA, Griesemer A, Dick A, Angelis M, Chin LT, Florman S, Ganoza A, Lyer K, Kang SM, Magliocca J, Squires J, Eisenberg E, Bray D, Tunno J, Reyes JD, Mazariegos GV. State of pediatric liver transplantation in the United States and achieving zero wait list mortality with ideal outcomes: A statement from the Starzl Network for Excellence in Pediatric Transplant Surgeon's Working Group. Pediatr Transplant 2023; 27 Suppl 1:e14283. [PMID: 36468324 DOI: 10.1111/petr.14283] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [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: 11/30/2021] [Revised: 03/14/2022] [Accepted: 03/22/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND Liver transplant is a life-saving therapy that can restore quality life for several pediatric liver diseases. However, it is not available to all children who need one. Expertise in medical and surgical management is heterogeneous, and allocation policies are not optimally serving children. Technical variant grafts from both living and deceased donors are underutilized. METHODS Several national efforts in pediatric liver transplant to improve access to and outcomes from liver transplant for children have been instituted and include adjustments to allocation policies, UNOS-sponsored collaborative improvement projects, and the emergence of national learning networks to study ongoing challenges in the field the Surgical Working group of the Starzl Network for Excellence in Pediatric Transplantation (SNEPT) discusses key issues and proposes potential solutions to eliminate the persistent wait list mortality that pediatric patients face. RESULTS A discussion of the factors impacting pediatric patients' access to liver transplant is undertaken, along with a proposal of several measures to ensure equitable access to life-saving liver transplant. CONCLUSIONS Pediatric liver transplant wait list mortality can and should be eliminated. Several measures, including collaborative efforts among centers, could be leveraged to acheive this goal.
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Affiliation(s)
- Sara K Rasmussen
- Department of Surgery, Seattle Children's Hospital, University of Washington, Seattle, Washington, USA
| | - Caroline P Lemoine
- Northwestern University Feinberg School of Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
| | - Riccardo Superina
- Northwestern University Feinberg School of Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
| | - Blayne Sayed
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | | | - Kyle A Soltys
- UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Adam Griesemer
- Department of Surgery, Columbia University, New York, New York, USA
| | - Andre Dick
- Department of Surgery, Seattle Children's Hospital, University of Washington, Seattle, Washington, USA
| | | | - L Thomas Chin
- Advent Health Transplant Institute, Orlando, Florida, USA
| | - Sander Florman
- Mt Sinai Recanati/Miller Transplantation Institute, New York, New York, USA
| | - Armando Ganoza
- UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Kishore Lyer
- Mt Sinai Recanati/Miller Transplantation Institute, New York, New York, USA
| | - Sang-Mo Kang
- Mt Sinai Recanati/Miller Transplantation Institute, New York, New York, USA
| | - Joseph Magliocca
- Department of Surgery, University of California San Francisco, San Francisco, California, USA
| | - James Squires
- UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Elizabeth Eisenberg
- Department of Surgery, Emory University, Atlanta, Georgia, USA.,Patient and Family Voice Committee, Starzl Network, Pittsburgh, Pennsylvania, USA
| | - David Bray
- Department of Surgery, Emory University, Atlanta, Georgia, USA.,Patient and Family Voice Committee, Starzl Network, Pittsburgh, Pennsylvania, USA
| | - John Tunno
- Department of Surgery, Emory University, Atlanta, Georgia, USA
| | - Jorge D Reyes
- Department of Surgery, Seattle Children's Hospital, University of Washington, Seattle, Washington, USA
| | - George V Mazariegos
- UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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8
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Duarte M, Garcia L, Naccarato F, Squires J. New insights to secure the workforce and develop innovation and technology in the Canadian meat industry. Meat Sci 2022. [DOI: 10.1016/j.meatsci.2022.108918] [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: 10/31/2022]
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9
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Bass LM, Ye W, Hawthorne K, Leung DH, Murray KF, Molleston JP, Romero R, Karpen S, Rosenthal P, Loomes KM, Wang KS, Squires RH, Miethke A, Ng VL, Horslen S, Kyle Jensen M, Sokol RJ, Magee JC, Shneider BL, Bass L, Kelly S, Riordan M, Melin‐Aldana H, Bezerra J, Bove K, Heubi J, Miethke A, Tiao G, Denlinger J, Chapman E, Sokol R, Feldman A, Mack C, Narkewicz M, Suchy F, Sundaram S, Van Hove J, Garcia B, Kauma M, Kocher K, Steinbeiss M, Lovell M, Loomes K, Piccoli D, Rand E, Russo P, Spinner N, Erlichman J, Stalford S, Pakstis D, King S, Squires R, Sindhi R, Venkat V, Bukauskas K, McKiernan P, Haberstroh L, Squires J, Rosenthal P, Bull L, Curry J, Langlois C, Kim G, Teckman J, Kociela V, Nagy R, Patel S, Cerkoski J, Molleston JP, Bozic M, Subbarao G, Klipsch A, Sawyers C, Cummings O, Horslen S, Murray K, Hsu E, Cooper K, Young M, Finn L, Kamath B, Ng V, Quammie C, Putra J, Sharma D, Parmar A, Guthery S, Jensen K, Rutherford A, Lowichik A, Book L, Meyers R, Hall T, Wang K, Michail S, Thomas D, Goodhue C, Kohli R, Wang L, Soufi N, Thomas D, Karpen S, Gupta N, Romero R, Vos MB, Tory R, Berauer J, Abramowsky C, McFall J, Shneider B, Harpavat S, Hertel P, Leung D, Tessier M, Schady D, Cavallo L, Olvera D, Banks C, Tsai C, Thompson R, Doo E, Hoofnagle J, Sherker A, Torrance R, Hall S, Magee J, Merion R, Spino C, Ye W. Risk of variceal hemorrhage and pretransplant mortality in children with biliary atresia. Hepatology 2022; 76:712-726. [PMID: 35271743 PMCID: PMC9378352 DOI: 10.1002/hep.32451] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 02/24/2022] [Accepted: 02/25/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND AIMS The natural history of gastroesophageal variceal hemorrhage (VH) in biliary atresia (BA) is not well characterized. We analyzed risk factors, incidence, and outcomes of VH in a longitudinal multicenter study. APPROACH AND RESULTS Participants enrolled in either an incident (Prospective Database of Infants with Cholestasis [PROBE]) or prevalent (Biliary Atresia Study of Infants and Children [BASIC]) cohort of BA were included. Variceal hemorrhage (VH) was defined based on gastrointestinal bleeding in the presence of varices accompanied by endoscopic or nontransplant surgical intervention. Cumulative incidence of VH and transplant-free survival was compared based on features of portal hypertension (e.g., splenomegaly, thrombocytopenia) and clinical parameters at baseline in each cohort (PROBE: 1.5 to 4.5 months after hepatoportoenterostomy [HPE]; BASIC: at enrollment > 3 years of age). Analyses were conducted on 869 children with BA enrolled between June 2004 and December 2020 (521 in PROBE [262 (51%) with a functioning HPE] and 348 in BASIC). The overall incidence of first observed VH at 5 years was 9.4% (95% CI: 7.0-12.4) in PROBE and 8.0% (5.2-11.5) in BASIC. Features of portal hypertension, platelet count, total bilirubin, aspartate aminotransferase (AST), albumin, and AST-to-platelet ratio index at baseline were associated with an increased risk of subsequent VH in both cohorts. Transplant-free survival at 5 years was 45.1% (40.5-49.6) in PROBE and 79.2% (74.1-83.4) in BASIC. Two (2.5%) of 80 participants who had VH died, whereas 10 (12.5%) underwent transplant within 6 weeks of VH. CONCLUSIONS The low risk of VH and associated mortality in children with BA needs to be considered in decisions related to screening for varices and primary prophylaxis of VH.
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Affiliation(s)
- Lee M Bass
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Wen Ye
- Department of Biostatistics, University of Michigan, Ann Arbor, Michigan, USA
| | - Kieran Hawthorne
- Arbor Research Collaborative for Health, Ann Arbor, Michigan, USA
| | - Daniel H Leung
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Baylor College of Medicine and Texas Children's Hospital, Houston, Texas, USA
| | - Karen F Murray
- Division of Gastroenterology, Department of Pediatrics, Hepatology, Seattle Children's Hospital and the University of Washington School of Medicine, Seattle, Washington State, USA
| | - Jean P Molleston
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Riley Hospital for Children, Indiana University, Indianapolis, Indiana, USA
| | - Rene Romero
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Children's Healthcare of Atlanta and Emory University School of Medicine, Atlanta, Georgia, USA
| | - Saul Karpen
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Children's Healthcare of Atlanta and Emory University School of Medicine, Atlanta, Georgia, USA
| | - Philip Rosenthal
- Department of Pediatrics, University of California, San Francisco, San Francisco, California, USA
| | - Kathleen M Loomes
- Division of Gastroenterology, Hepatology and Nutrition, The Children's Hospital of Philadelphia and Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Kasper S Wang
- Department of Pediatric Surgery, Children's Hospital Los Angeles, Los Angeles, California, USA
| | - Robert H Squires
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Pittsburgh, School of Medicine and Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Alexander Miethke
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Cincinnati, Cincinnati, Ohio, USA
| | - Vicky L Ng
- Division of GI, Hepatology and Nutrition, Hospital for Sick Children and University of Toronto, Toronto, Ontario, Canada
| | - Simon Horslen
- Department of Pediatrics, Seattle Children's Hospital, University of Washington School of Medicine, Seattle, Washington State, USA
| | - M Kyle Jensen
- Department of Pediatrics, University of Utah, Salt Lake City, Utah, USA
| | - Ronald J Sokol
- Department of Pediatrics-Gastroenterology, Hepatology and Nutrition, University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, Colorado, USA
| | - John C Magee
- Department of Surgery, University of Michigan School of Medicine, Ann Arbor, Michigan, USA
| | - Benjamin L Shneider
- Section of Pediatric Gastroenterology, Hepatology and Nutrition, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas, USA
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Gunasekaran V, Squires J, Squires J, Michaels MG, Ibrahim J. Hepatosplenomegaly and Periventricular Cyst in a Neonate with Direct Hyperbilirubinemia. Neoreviews 2022; 23:e40-e44. [PMID: 34970666 DOI: 10.1542/neo.23-1-e40] [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: 11/24/2022]
Affiliation(s)
- Vignesh Gunasekaran
- Neonatal-Perinatal Medicine Fellowship Program, Magee-Women's Hospital of UPMC/Children's Hospital of Pittsburgh, Pittsburgh, PA
| | - Judy Squires
- Division of Pediatric Radiology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA
| | - James Squires
- Division of Pediatric Gastroenterology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA
| | - Marian G Michaels
- Division of Pediatric Infectious Disease, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA
| | - John Ibrahim
- Division of Newborn Medicine, Magee-Women's Hospital of UPMC/Children's Hospital of Pittsburgh, Pittsburgh, PA
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11
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Henkel S, Vetterly C, Squires R, McKiernan P, Squires J. Pharmacological management of portal hypertension and its complications in children: lessons from adults and opportunities for the future. Expert Opin Pharmacother 2020; 22:291-304. [PMID: 33074032 DOI: 10.1080/14656566.2020.1825685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
INTRODUCTION Portal hypertension (PHT) and its complications in children are thought to be distinct from adult PHT in several areas, including the underlying bio-physiology of a child in which PHT develops, but also because of the pediatric-specific etiologies that drive disease progression. And yet pharmacologic approaches to PHT in children are mainly based on adult data, modified for pediatric practice. This reality has been driven by a lack of data specific to children. AREAS COVERED The authors discuss current therapeutic approaches to PHT in children, including management of acute gastrointestinal variceal bleed, pharmacotherapy in prophylaxis, and established and emerging therapies to combat systemic co-morbidities that result from PHT. The few areas where pediatric-specific data exist are highlighted and the many gaps in knowledge that remain unresolved are underscored. EXPERT OPINION Despite decades of experience, optimal management of pediatric PHT remains undefined. In large part, this can be directly linked to a lack of basic understanding related to the unique pathophysiology and natural history that defines PHT in children. As a result, meaningful research into the utility and effectiveness of pharmacotherapy in children with PHT remains in its infancy. Large, multi-center, prospective studies will be needed to begin to establish an infrastructure on which a pediatric-specific research agenda can be built.
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Affiliation(s)
- Sarah Henkel
- Division of Gastroenterology and Hepatology, UPMC Children's Hospital of Pittsburgh , Pittsburgh, PA
| | - Carol Vetterly
- Department of Pharmacy, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Pharmacy , Pittsburgh, PA
| | - Robert Squires
- Division of Gastroenterology and Hepatology, UPMC Children's Hospital of Pittsburgh , Pittsburgh, PA
| | - Patrick McKiernan
- Division of Gastroenterology and Hepatology, UPMC Children's Hospital of Pittsburgh , Pittsburgh, PA
| | - James Squires
- Division of Gastroenterology and Hepatology, UPMC Children's Hospital of Pittsburgh , Pittsburgh, PA
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12
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Elisofon SA, Magee JC, Ng VL, Horslen SP, Fioravanti V, Economides J, Erinjeri J, Anand R, Mazariegos GV, Martin A, Mannino D, Flynn L, Mohammad S, Alonso E, Superina R, Brandt K, Riordan M, Lokar J, Ito J, Elisofon S, Zapata L, Jain A, Foristal E, Gupta N, Whitlow C, Naik K, Espinosa H, Miethke A, Hawkins A, Hardy J, Engels E, Schreibeis A, Ovchinsky N, Kogan‐Liberman D, Cunningham R, Malik P, Sundaram S, Feldman A, Garcia B, Yanni G, Kohli R, Emamaullee J, Secules C, Magee J, Lopez J, Bilhartz J, Hollenbeck J, Shaw B, Bartow C, Forest S, Rand E, Byrne A, Linguiti I, Wann L, Seidman C, Mazariegos G, Soltys K, Squires J, Kepler A, Vitola B, Telega G, Lerret S, Desai D, Moghe J, Cutright L, Daniel J, Andrews W, Fioravanti V, Slowik V, Cisneros R, Faseler M, Hufferd M, Kelly B, Sudan D, Mavis A, Moats L, Swan‐Nesbit S, Yazigi N, Buranych A, Hobby A, Rao G, Maccaby B, Gopalareddy V, Boulware M, Ibrahim S, El Youssef M, Furuya K, Schatz A, Weckwerth J, Lovejoy C, Kasi N, Nadig S, Law M, Arnon R, Chu J, Bucuvalas J, Czurda M, Secheli B, Almy C, Haydel B, Lobritto S, Emand J, Biney‐Amissah E, Gamino D, Gomez A, Himes R, Seal J, Stewart S, Bergeron J, Truxillo A, Lebel S, Davidson H, Book L, Ramstack D, Riley A, Jennings C, Horslen S, Hsu E, Wallace K, Turmelle Y, Nadler M, Postma S, Miloh T, Economides J, Timmons K, Ng V, Subramonian A, Dharmaraj B, McDiarmid S, Feist S, Rhee S, Perito E, Gallagher L, Smith K, Ebel N, Zerofsky M, Nogueira J, Greer R, Gilmour S, Robert C, Cars C, Azzam R, Boone P, Garbarino N, Lalonde M, Kerkar N, Dokus K, Helbig K, Grizzanti M, Tomiyama K, Cocking J, Alexopoulos S, Bhave C, Schillo R, Bailey A, Dulek D, Ramsey L, Ekong U, Valentino P, Hettiarachchi D, Tomlin R. Society of pediatric liver transplantation: Current registry status 2011-2018. Pediatr Transplant 2020; 24:e13605. [PMID: 31680409 DOI: 10.1111/petr.13605] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [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: 05/31/2019] [Revised: 08/08/2019] [Accepted: 09/27/2019] [Indexed: 11/29/2022]
Abstract
BACKGROUND SPLIT was founded in 1995 in order to collect comprehensive prospective data on pediatric liver transplantation, including waiting list data, transplant, and early and late outcomes. Since 2011, data collection of the current registry has been refined to focus on prospective data and outcomes only after transplant to serve as a foundation for the future development of targeted clinical studies. OBJECTIVE To report the outcomes of the SPLIT registry from 2011 to 2018. METHODS This is a multicenter, cross-sectional analysis characterizing patients transplanted and enrolled in the SPLIT registry between 2011 and 2018. All patients, <18 years of age, received a first liver-only, a combined liver-kidney, or a combined liver-pancreas transplant during this study period. RESULTS A total of 1911 recipients from 39 participating centers in North America were registered. Indications included biliary atresia (38.5%), metabolic disease (19.1%), tumors (11.7%), and fulminant liver failure (11.5%). Greater than 50% of recipients were transplanted as either Status 1A/1B or with a MELD/PELD exception score. Incompatible transplants were performed in 4.1%. Kaplan-Meier estimates of 1-year patient and graft survival were 97.3% and 96.6%. First 30 days of surgical complications included reoperation (31.7%), hepatic artery thrombosis (6.3%), and portal vein thrombosis (3.2%). In the first 90 days, biliary tract complications were reported in 13.6%. Acute cellular rejection during first year was 34.7%. At 1 and 2 years of follow-up, 39.2% and 50.6% had normal liver tests on monotherapy (tacrolimus or sirolimus). Further surgical, survival, allograft function, and complications are detailed.
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Affiliation(s)
- Scott A Elisofon
- Division of Gastroenterology, Hepatology and Nutrition, Boston Children's Hospital, Boston, Massachusetts
| | - John C Magee
- Division of Surgery, University of Michigan Transplant Center, Ann Arbor, Michigan
| | - Vicky L Ng
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Transplant and Regenerative Medicine Center, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Simon P Horslen
- Department of Pediatrics, Seattle Children's Hospital, University of Washington School of Medicine, Seattle, Washington
| | - Vicki Fioravanti
- Section of Hepatology and Liver Transplantation, Children's Mercy Hospital, Kansas City, Missouri
| | | | | | | | - George V Mazariegos
- Division of Pediatric Transplant Surgery, Hillman Center for Pediatric Transplantation, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
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Nayeri S, Schenkel F, Fleming A, Kroezen V, Sargolzaei M, Baes C, Cánovas A, Squires J, Miglior F. Genome-wide association analysis for β-hydroxybutyrate concentration in Milk in Holstein dairy cattle. BMC Genet 2019; 20:58. [PMID: 31311492 PMCID: PMC6636026 DOI: 10.1186/s12863-019-0761-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [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] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 06/28/2019] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Ketosis in dairy cattle has been shown to cause a high morbidity in the farm and substantial financial losses to dairy farmers. Ketosis symptoms, however, are difficult to identify, therefore, the amount of ketone bodies (mainly β-hydroxybutyric acid, BHB) is used as an indicator of subclinical ketosis in cows. It has also been shown that milk BHB concentrations have a strong correlation with ketosis in dairy cattle. Mid-infrared spectroscopy (MIR) has recently became a fast, cheap and high-throughput method for analyzing milk components. The aim of this study was to perform a genome-wide association study (GWAS) on the MIR-predicted milk BHB to identify genomic regions, genes and pathways potentially affecting subclinical ketosis in North American Holstein dairy cattle. RESULTS Several significant regions were identified associated with MIR-predicted milk BHB concentrations (indicator of subclinical ketosis) in the first lactation (SCK1) and second and later lactations (SCK2) in Holstein dairy cows. The strongest association was located on BTA6 for SCK1 and BTA14 on SCK2. Several SNPs on BTA6 were identified in regions and variants reported previously to be associated with susceptibility to ketosis and clinical mastitis in Jersey and Holstein dairy cattle, respectively. One highly significant SNP on BTA14 was found within the DGAT1 gene with known functions on fat metabolism and inflammatory response in dairy cattle. A region on BTA6 and three SNPs on BTA20 were found to overlap between SCK1 and SCK2. However, a novel region on BTA20 (55-63 Mb) for SCK2 was also identified, which was not reported in previous association studies. Enrichment analysis of the list of candidate genes within the identified regions for MIR-predicted milk BHB concentrations yielded molecular functions and biological processes that may be involved in the inflammatory response and lipid metabolism in dairy cattle. CONCLUSIONS The results of this study confirmed several SNPs and genes identified in previous studies as associated with ketosis susceptibility and immune response, and also found a novel region that can be used for further analysis to identify causal variations and key regulatory genes that affect clinical/ subclinical ketosis.
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Affiliation(s)
- S. Nayeri
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1 Canada
| | - F. Schenkel
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1 Canada
| | - A. Fleming
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1 Canada
- Canadian Dairy Network, Guelph, ON N1K 1E5 Canada
| | - V. Kroezen
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1 Canada
| | - M. Sargolzaei
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1 Canada
- Select Sires Inc., Plain City, OH 43064 USA
| | - C. Baes
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1 Canada
| | - A. Cánovas
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1 Canada
| | - J. Squires
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1 Canada
| | - F. Miglior
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1 Canada
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Bone C, Lou Y, Squires J. PSVII-34 The Characterization of Androstenone Binding to Plasma Proteins in Boars. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.786] [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: 11/12/2022] Open
Affiliation(s)
- C Bone
- University of Guelph,Guelph, ON, Canada
| | - Y Lou
- University of Guelph,Guelph, ON, Canada
| | - J Squires
- University of Guelph,Guelph, ON, Canada
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Bedford A, Yu H, Hernandez M, Squires J, Leeson S, Hou Y, Gong J. Response of Ross 308 and 708 broiler strains in growth performance and lipid metabolism to diets containing tributyrate glycerides. Can J Anim Sci 2017. [DOI: 10.1139/cjas-2017-0025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Andrea Bedford
- Guelph Food Research Program, Agriculture and Agri-Food Canada, Guelph, Ontario, Canada,
| | - Hai Yu
- Guelph Food Research Program, Agriculture and Agri-Food Canada, Guelph, Ontario, Canada,
| | - Marta Hernandez
- Guelph Food Research Program, Agriculture and Agri-Food Canada, Guelph, Ontario, Canada,
| | - J. Squires
- University of Guelph, Animal and Poultry Science, Animal Science and Nutrition Bldg, Room 228, Guelph, Ontario, Canada, N1G2W1, ,
| | - Steve Leeson
- U o Guelph, APS, Guelph, ON, Guelph, Canada, N1G2W1,
| | - Yongqing Hou
- Wuhan Polytechnic University, 74615, Wuhan, Hubei , China
| | - Joshua Gong
- Guelph Food Research Program, Agriculture and Agri-Food Canada, 93 Stone Road West, Guelph, Ontario, Canada, N1G 5C9, ,
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Craigie M, Squires J, Miles K. Can CT measures of tumour heterogeneity stratify risk for nodal metastasis in patients with non-small cell lung cancer? Clin Radiol 2017; 72:899.e1-899.e7. [PMID: 28522257 DOI: 10.1016/j.crad.2017.04.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Revised: 04/02/2017] [Accepted: 04/11/2017] [Indexed: 01/20/2023]
Abstract
AIM To undertake a preliminary assessment of the potential for computed tomography (CT) measurement of tumour heterogeneity to stratify risk of nodal metastasis in patients with non-small cell lung cancer (NSCLC). MATERIALS AND METHODS Tumour heterogeneity in CT images from combined positron-emission tomography (PET)/CT examinations in 150 consecutive patients with NSCLC was assessed using CT texture analysis (CTTA). The short axis diameter of the largest mediastinal node was also measured. Forty-two patients without distant metastases subsequently had tumour nodal status confirmed at surgery (n=26) or endobronchial ultrasound (EBUS; n=16). CTTA parameters and largest nodal diameter were related to nodal status using the rank correlation and the risk ratio for each nodal stage (>N0, >N1, >N2) was compared between patients categorised as high and low risk by CTTA or nodal size. The most significant predictor of nodal status was related to overall survival using Kaplan-Meier analysis. RESULTS N-stage was more significantly correlated with CTTA than nodal diameter (Rs = -0.39, p=0.011, Rs = -0.45, p=0.0025, Rs = -0.40, p=0.0091 for normalised standard deviation (SD), normalised entropy and kurtosis respectively; Rs = -0.39, p=0.042 for nodal diameter). The presence of two or more high-risk CTTA values was the greatest risk factor for mediastinal metastasis (risk ratio: 11.0, 95% confidence interval: 1.56-77.8, p=0.0014) and was associated with significantly poorer overall survival (p=0.016). CONCLUSION CTTA in NSCLC is related to nodal status in patients without distant metastases and has the potential to inform selection of investigative strategies for the assessment of mediastinal malignancy.
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Affiliation(s)
- M Craigie
- Department of Medical Imaging, Princess Alexandra Hospital, 199 Ipswich Road, Woolloongabba, 4102, QLD, Australia.
| | - J Squires
- Department of Medical Imaging, Princess Alexandra Hospital, 199 Ipswich Road, Woolloongabba, 4102, QLD, Australia
| | - K Miles
- Department of Medical Imaging, Princess Alexandra Hospital, 199 Ipswich Road, Woolloongabba, 4102, QLD, Australia; Institute of Nuclear Medicine, University College London, Euston Road, London, UK
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Huber LA, Squires J, de Lange CF. Plasma concentrations of hormones and growth factors in entire male pigs immunized against gonadotropin-releasing hormone. Can J Anim Sci 2016. [DOI: 10.1139/cjas-2016-0167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Lee-Anne Huber
- University of Guelph, Animal Biosciences, Guelph, Ontario, Canada,
| | - J. Squires
- University of Guelph, Animal and Poultry Science, Animal Science and Nutrition Bldg, Room 228, Guelph, Ontario, Canada, N1G2W1, ,
| | - Cornelis F.M. de Lange
- University of Guelph, Animal and Poultry Science, Animal Science and Nutrition Building, Building # 70, University of Guelph, 50 Stone Road East, Guelph, Ontario, Canada, N1G 2W1, ,
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Bedford A, Yu H, Hernandez M, Squires J, Leeson S, Hou Y, Gong J. 0939 Different responses of Ross 308 and 708 broiler strains in growth performance and related properties to diet treatment with or without tributyrate glycerides. J Anim Sci 2016. [DOI: 10.2527/jam2016-0939] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Park P, Mandell IB, de Lange CFM, Squires J. 0469 Use of low-cost, non-nutritive adsorbents as intestinal binding agents to sequester the boar taint compound androstenone. J Anim Sci 2016. [DOI: 10.2527/jam2016-0469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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21
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Affiliation(s)
- James Squires
- Pediatric Gastroenterology and Hepatology, Children's Hospital of Pittsburgh, Pittsburgh, PA, USA.
| | - Christina Nguyen
- Department of Pediatric Nephrology, Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
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Park P, Mandell IB, de Lange CFM, Squires J. 101 In vitro investigations on the use of non-nutritive sorbent additives to sequester boar taint compounds. J Anim Sci 2016. [DOI: 10.2527/msasas2016-101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Almanzar S, Shah N, Vithalani S, Shah S, Squires J, Appasani R, Katz CL. Knowledge of and attitudes toward clinical depression among health providers in Gujarat, India. Ann Glob Health 2016; 80:89-95. [PMID: 24976545 DOI: 10.1016/j.aogh.2014.04.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Revised: 11/05/2013] [Accepted: 11/15/2013] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Clinical depression is a major leading cause of morbidity and mortality but it is oftentimes overlooked and undertreated. The negative perception and lack of understanding of this condition prevents millions of people from seeking appropriate and on-time medical help, leading to distress and increased burden for affected people and their families. The implementation of public education campaigns and training of non-psychiatric health professionals on mental health and clinical depression has been neglected in several countries, including India, which is the second most populous country in the world with a population of more than 1.2 billion people, almost one-fifth of the world's population. OBJECTIVE This study sought to explore the knowledge and attitudes toward the diagnosis and treatment of clinical depression in nonpsychiatric health care providers in Vadodara, Gujarat, India. METHODS A cross-sectional survey was conducted over a 4-week period In Gujarat, India among resident physicians and community health workers about their knowledge and views on clinical depression. FINDINGS We found considerable stigma and misinformation about depression especially among health care workers in India. Most of the community health workers had a great deal of difficulty when defining clinical depression, and a large majority said that they never heard about depression or its definition and although the overwhelming majority of respondents did not believe that clinical depression results from a punishment from God (82% disagreed or strongly disagreed with this belief) or evil spirits (77.5%), a much smaller proportion disagreed with the assertions that depression was either solely due to difficult circumstances (38.2%) or that sufferers only had themselves to blame (47.2%). Meanwhile, only 32.6% disagreed with the position that clinical depression is a sign of weakness and 39.4% disagreed with the statement that suicide was a sign of weakness. CONCLUSIONS Our findings underscore the considerable public health priority facing India's policymakers and planners to better educate more non-psychiatric physicians and community health workers to identify, understand, and respond to early signs of mental illnesses, especially clinical depression.
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Affiliation(s)
- Santiago Almanzar
- Department of Psychiatry, Forensic Psychiatry Fellowship Program, University of Missouri School of Medicine, Columbia, MO.
| | | | | | - Sandip Shah
- Sumandeep Vidyapeeth University, Gujarat, India
| | - James Squires
- Icahn School of Medicine at Mount Sinai, New York, NY
| | | | - Craig L Katz
- Icahn School of Medicine at Mount Sinai, New York, NY
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Manojlovich M, Kerr M, Davies B, Squires J, Mallick R, Rodger GL. Achieving a climate for patient safety by focusing on relationships. Int J Qual Health Care 2014; 26:579-84. [DOI: 10.1093/intqhc/mzu068] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Zhu Y, Yang SR, Wang PP, Savas S, Wish T, Zhao J, Green R, Woods M, Sun Z, Roebothan B, Squires J, Buehler S, Dicks E, Zhao J, Mclaughlin JR, Parfrey PS, Campbell PT. Influence of pre-diagnostic cigarette smoking on colorectal cancer survival: overall and by tumour molecular phenotype. Br J Cancer 2014; 110:1359-66. [PMID: 24448365 PMCID: PMC3950884 DOI: 10.1038/bjc.2014.6] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2013] [Revised: 12/11/2013] [Accepted: 12/19/2013] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Smoking is a risk factor for incident colorectal cancer (CRC); however, it is unclear about its influence on survival after CRC diagnosis. METHODS A cohort of 706 CRC patients diagnosed from 1999 to 2003 in Newfoundland and Labrador, Canada, was followed for mortality and recurrence until April 2010. Smoking and other relevant data were collected by questionnaire after cancer diagnosis, using a referent period of '2 years before diagnosis' to capture pre-diagnosis information. Molecular analyses of microsatellite instability (MSI) status and BRAF V600E mutation status were performed in tumour tissue using standard techniques. Multivariate hazard ratios (HRs) and 95% confidence intervals (CIs) were calculated with Cox proportional hazards regression, controlling for major prognostic factors. RESULTS Compared with never smokers, all-cause mortality (overall survival, OS) was higher for current (HR: 1.78; 95% CI: 1.04-3.06), but not for former (HR: 1.06; 95% CI: 0.71-1.59) smokers. The associations of cigarette smoking with the study outcomes were higher among patients with ≥40 pack-years of smoking (OS: HR: 1.72; 95% CI: 1.03-2.85; disease-free survival (DFS: HR: 1.99; 95% CI: 1.25-3.19), those who smoked ≥30 cigarettes per day (DFS: HR: 1.80; 95% CI: 1.22-2.67), and those with microsatellite stable (MSS) or MSI-low tumours (OS: HR: 1.38; 95% CI: 1.04-1.82 and DFS: HR: 1.32; 95% CI: 1.01-1.72). Potential heterogeneity was noted for sex (DFS HR: 1.68 for men and 1.01 for women: P for heterogeneity=0.04), and age at diagnosis (OS: HR: 1.11 for patients aged <60 and 1.69 for patients aged ≥60: P for heterogeneity=0.03). CONCLUSIONS Pre-diagnosis cigarette smoking is associated with worsened prognosis among patients with CRC.
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Affiliation(s)
- Y Zhu
- Division of Community Health and Humanities, Faculty of Medicine, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
- Department of Epidemiology, School of Public Health, Tianjin Medical University, Tianjin, China
| | - S R Yang
- Division of Community Health and Humanities, Faculty of Medicine, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| | - P P Wang
- Division of Community Health and Humanities, Faculty of Medicine, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
- Department of Epidemiology, School of Public Health, Tianjin Medical University, Tianjin, China
| | - S Savas
- Discipline of Genetics, Faculty of Medicine, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
- Discipline of Oncology, Faculty of Medicine, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| | - T Wish
- Discipline of Genetics, Faculty of Medicine, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| | - J Zhao
- Division of Community Health and Humanities, Faculty of Medicine, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| | - R Green
- Discipline of Genetics, Faculty of Medicine, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| | - M Woods
- Discipline of Genetics, Faculty of Medicine, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| | - Z Sun
- Division of Community Health and Humanities, Faculty of Medicine, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| | - B Roebothan
- Division of Community Health and Humanities, Faculty of Medicine, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| | - J Squires
- Division of Community Health and Humanities, Faculty of Medicine, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| | - S Buehler
- Division of Community Health and Humanities, Faculty of Medicine, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| | - E Dicks
- Clinical Epidemiology Unit, Faculty of Medicine, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| | - J Zhao
- Division of Community Health and Humanities, Faculty of Medicine, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| | - J R Mclaughlin
- Prosserman Centre for Health Research, Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - P S Parfrey
- Clinical Epidemiology Unit, Faculty of Medicine, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| | - P T Campbell
- Epidemiology Research Program, American Cancer Society, Atlanta, GA, USA
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Shindo S, Sakuma T, Negishi M, Squires J. Phosphorylation of serine 212 confers novel activity to human estrogen receptor α. Steroids 2012; 77:448-53. [PMID: 22266331 PMCID: PMC4033595 DOI: 10.1016/j.steroids.2012.01.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2011] [Revised: 12/15/2011] [Accepted: 01/03/2012] [Indexed: 10/14/2022]
Abstract
Estrogen receptor α (ERα) can be phosphorylated at various residues, one of which is serine 212 in the DNA binding domain. The majority of human nuclear receptors conserves, as a motif, this serine residue within their DNA binding domain. Among these nuclear receptors, phosphorylation of the corresponding threonine 38 in the nuclear receptor CAR is essential for determining its activity [9]. Here, we have investigated the role of phosphorylated serine 212 in the regulation of ERα activity by comparing it with serine 236, another potential phosphorylation site within the DNA binding domain, and demonstrated that phosphorylation of serine 212 confers upon ERα a distinct activity regulating gene expression in Huh-7 cells. In Western blot analysis, wild type ERα and mutants ERα S212A, ERα S212D, ERα S236A and ERα S236D were equally expressed in the nucleus, thus indicating that phosphorylation does not determine nuclear localization of ERα. ERα S212D, but not ERα S236D, retained its capability of activating an ERE-reporter gene in luciferase assays. Similar results were also obtained for human ERβ; the ERβ S176D mutant retained its trans-activation activity, but the ERβ S200D mutant did not. cDNA microarray and Ingenuity Pathway Analysis, employed on Huh-7 cells ectopically expressing either ERα S212A or ERα S212D, revealed that phosphorylation of serine 212 enabled ERα to regulate a unique set of genes and cellular functions.
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Affiliation(s)
| | | | - Masahiko Negishi
- Corresponding author. Tel.: +1 919 541 2404; fax: +1 919 541 0696. (M. Negishi)
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Rosen D, Bloor-Young D, Squires J, Parkesh R, Waters G, Vasudevan SR, Lewis AM, Churchill GC. Synthesis and use of cell-permeant cyclic ADP-ribose. Biochem Biophys Res Commun 2012; 418:353-8. [PMID: 22274607 DOI: 10.1016/j.bbrc.2012.01.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2012] [Accepted: 01/06/2012] [Indexed: 12/13/2022]
Abstract
Cyclic ADP-ribose (cADPR) is a second messenger that acts on ryanodine receptors to mobilize Ca(2+). cADPR has a net negative charge at physiological pH making it not passively membrane permeant thereby requiring it to be injected, electroporated or loaded via liposomes. Such membrane impermeance of other charged intracellular messengers (including cyclic AMP, inositol 1,4,5-trisphosphate and nicotinic acid adenine dinucleotide phosphate) and fluorescent dyes (including fura-2 and fluorescein) has been overcome by synthesizing masked analogs (prodrugs), which are passively permeant and hydrolyzed to the parent compound inside cells. We now report the synthesis and biological activity of acetoxymethyl (AM) and butoxymethyl (BM) analogs of cADPR. Extracellular addition of cADPR-AM or cADPR-BM to neuronal cells in primary culture or PC12 neuroblastoma cells induced increases in cytosolic Ca(2+). Pre-incubation of PC12 cells with thapsigargin, ryanodine or caffeine eliminated the response to cADPR-AM, whereas the response still occurred in the absence of extracellular Ca(2+). Combined, these data demonstrate that masked cADPR analogs are cell-permeant and biologically active. We hope these cell-permeant tools will facilitate cADPR research and reveal its diverse physiological functions.
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Affiliation(s)
- Daniel Rosen
- University of Oxford, Department of Pharmacology, Mansfield Road, Oxford OX1 3QT, UK
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Lee J, Squires J, Hays JL, Kotz HL, Nielsen D, Houston ND, Kohn EC. A pharmacokinetics/pharmacodynamics study of sequence specificity of the PARP inhibitor olaparib with carboplatin in refractory/recurrent women’s cancers: NCT01237067. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.tps158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Kohn EC, Lee J, Annunziata CM, Minasian LM, Zujewski J, Prindiville SA, Kotz HL, Squires J, Houston ND, Chen HX, Wright JJ. A phase II study of intermittent sorafenib with bevacizumab in bevacizumab-naive epithelial ovarian cancer (EOC) patients. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.5019] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Lee J, Annunziata CM, Minasian LM, Zujewski J, Prindiville SA, Kotz HL, Squires J, Houston ND, Ji JJ, Yu M, Doroshow JH, Kohn EC. Phase I study of the PARP inhibitor olaparib (O) in combination with carboplatin (C) in BRCA1/2 mutation carriers with breast (Br) or ovarian (Ov) cancer (Ca). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.2520] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Affiliation(s)
- James Squires
- Chelsea and Westminster Hospital NHS Foundation Trust, London
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Kim G, Annunziata CM, Sarosy GA, Minasian LM, Prindiville SA, Zujewski J, Otten L, Squires J, Houston ND, Kohn EC. Phase I study of dasatinib in combination with bevacizumab in advanced solid tumors. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.tps163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Kim G, Squires J, Yu M, Walker A, Houston ND, Otten L, Kohn EC. Phase II study of clinical activity of pegaspargase in women with relapsed or refractory epithelial ovarian, fallopian tube, and/or primary peritoneal cancer. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.tps258] [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: 11/20/2022] Open
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Neri Q, Hong S, Squires J, Rosenwaks Z, Palermo G. Developmental consequences on the surviving embryos after spontaneous embryo reduction. Fertil Steril 2008. [DOI: 10.1016/j.fertnstert.2008.07.1502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Heo KH, Squires J, Yovanoff P. Cross-cultural adaptation of a pre-school screening instrument: comparison of Korean and US populations. J Intellect Disabil Res 2008; 52:195-206. [PMID: 18261019 DOI: 10.1111/j.1365-2788.2007.01000.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
BACKGROUND Accurate and efficient developmental screening measures are critical for early identification of developmental problems; however, few reliable and valid tests are available in Korea as well as other countries outside the USA. The Ages and Stages Questionnaires (ASQ) was chosen for study with young children in Korea. METHODS The ASQ was translated into Korean and necessary cross-cultural adaptations were made. The translated version was then distributed and completed by 3220 parents of young children between the ages of 4 months and 5 years. Reliability was studied including domain correlations, internal consistency, and performance of identification cut-off scores for the Korean population. Rasch analyses including tests of Differential Item Functioning, contrasting Korean and US samples were also performed. RESULTS In general, internal consistency of the Korean ASQ was high, with overall correlations 0.75 for communication, 0.85 for gross motor, 0.74 for fine motor, 0.72 for problem solving, and 0.65 for personal-social. Validity, including concurrent validity, also had strong evidence. Mean scores of children on the Korean translation of the ASQ and the US normative sample were generally similar. Rasch analyses indicated the majority of items functioned similarly across the Korean sample. CONCLUSIONS In general, the ASQ was translated with cultural appropriateness in mind and functioned as a valid and reliable parent-completed screening test to assist in early identification of young children with developmental delays. Further research is needed to confirm these results with a larger and more diverse Korean sample.
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Affiliation(s)
- K H Heo
- Chongshin University, Seoul, Korea
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Neri Q, Williams-Pitman M, Rosenwaks Z, Squires J, Palermo G. Cognitive and behavioral profiles of ICSI children conceived from surgically retrieved spermatozoa. Fertil Steril 2007. [DOI: 10.1016/j.fertnstert.2007.07.140] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Janson H, Squires J. Parent-completed developmental screening in a Norwegian population sample: a comparison with US normative data. Acta Paediatr 2005; 93:1525-9. [PMID: 15513584 DOI: 10.1080/08035250410033051] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 09/30/2022]
Abstract
AIM To compare normative data of a Norwegian translation of the Ages and Stages Questionnaires with original US normative data. METHODS Norwegian-born mothers randomly selected from the population register completed Norwegian translations of the Ages and Stages Questionnaires, a series of 19 age-specific child development screening questionnaires each made up of 30 items in five domains: Communication, Gross Motor, Fine Motor, Problem Solving, and Personal-Social. Domain score group differences with original US normative data on 10 age-specific questionnaires (for ages 4, 8, 12, 16, 20, 24, 30, 36, 48, and 60 mo) were investigated. The Norwegian data consisted of 1341 children, varying between 82 and 176 per age interval. RESULTS On the whole, parents' reports of their children's development were very similar in the two data sets. Only five out of 50 mean comparisons revealed a mean difference either greater than a Cohen's d of 0.5 or greater than the smallest increment on a domain score. The variation in scores tended to be somewhat smaller in the Norwegian sample. CONCLUSION It seems reasonable to expect that domain scores on the Ages and Stages Questionnaires may be interpreted in the same way in Norway and the United States, and these results may also generalize to other Western settings. These findings from a true random sample also increase the confidence in the original normative data.
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Affiliation(s)
- H Janson
- Institute of Psychology, University of Oslo, Norway.
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Ponjaert-Kristoffersen I, Tjus T, Nekkebroeck J, Squires J, Verté D, Heimann M, Bonduelle M, Palermo G, Wennerholm UB. Psychological follow-up study of 5-year-old ICSI children. Hum Reprod 2004; 19:2791-7. [PMID: 15358721 DOI: 10.1093/humrep/deh511] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The developmental outcomes of children born after ICSI are still a matter of concern. The purpose of the present study was to investigate psychological outcomes for 5-year-old children born after ICSI and compare these with outcomes for children born after spontaneous conception (SC). METHODS Three hundred singleton children born after ICSI in Belgium, Sweden and the USA were matched by maternal age, child age and gender. Outcome measures included the Wechsler Preschool and Primary scales of intelligence (WPPSI-R), Peabody Developmental Motor Scales, Parenting Stress Index and Child Behaviour Checklist. RESULTS Regarding cognitive development, no significant differences were found on WPPSI-R verbal and performance scales between ICSI and SC children. However, some differences were noted on subtests of the Performance Scale. ICSI children more often obtained a score below 1 SD of the mean on the subtests: Object Assembly, Block Design and Mazes (all P<0.05). Significant differences by site (i.e. Belgium, Sweden and New York) were found on subtests related to parenting stress, child behaviour problems and motor development (all P<0.05). These findings can probably be explained by variables other than conception mode, such as cultural differences and selection bias. CONCLUSIONS Although the finding that a higher proportion of ICSI children obtained scores below the cut-off on some of the visual-spatial subscales of the WPPSI-R warrants further investigation, ICSI does not appear to affect the psychological well-being or cognitive development at age 5.
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Affiliation(s)
- I Ponjaert-Kristoffersen
- Department of Developmental- and Lifespanpsychology, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium.
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Balbontin FG, Kiberd B, Squires J, Singh D, Fraser A, Belitsky P, Lawen J. Tacrolimus monitoring by simplified sparse sampling under the concentration time curve. Transplant Proc 2003; 35:2445-8. [PMID: 14611982 DOI: 10.1016/j.transproceed.2003.08.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The purpose of this study was to determine which tacrolimus pharmacokinetic parameters best predicted efficacy in kidney transplantation. Blood tacrolimus levels at 0, 1, 2, 3, and 4 hours postdose were measured in 28 kidney transplants. All received tacrolimus-based triple-drug therapy with mychophenolate mofetil and prednisone. Associations between blood concentrations at each sampling time point and the area under the curve (AUC) 0-4 were measured by Pearson's correlation coefficients. Tacrolimus dosing was based on C0 not AUC. AUC and blood concentrations at each sampling time were retrospectively compared with C0 as predictor of acute rejection and nephrotoxicity. Although tacrolimus C0 correlated with AUC0-4 (r =.86), correlations were higher with C2 and C3 (r =.96 and r =.94, respectively). C0 levels were not significantly different in six patients with acute rejection and 23 patients without. There was a trend toward lower tacrolimus C3 in patients with AR than without AR (P =.06). C2 and C3 correlate better with AUC0-4 than C0. Early tacrolimus C3 levels may be a better than C0 as a predictor of efficacy.
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Affiliation(s)
- F G Balbontin
- Kidney Transplant Program, Queen Elizabeth II Health Sciences Centre, Halifax, Nova Scotia, Canada.
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Balbontin F, Kiberd B, Singh D, Squires J, Fraser A, Belitsky P, Lawen J. Basiliximab widens the therapeutic window for AUC-monitored neoral therapy early after kidney transplantation. Transplant Proc 2003; 35:2409-11. [PMID: 14611972 DOI: 10.1016/j.transproceed.2003.08.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Early adequate cyclosporine exposure has been shown to predict low acute rejection. Recently basiliximab induction has been added to immunosuppressive regimens to further reduce rejection. The aim of this study was to determine the importance of achieving the early cyclosporine therapeutic threshold with basiliximab induction. A retrospective analysis of first cadaver and nonidentical living donor transplant recipients treated with or without basiliximab induction was performed. All patients (n = 170) received neoral, mycophenolate mofetil, and prednisone. The cyclosporine absorption profile was measured on day 3. Adequate cyclosporine exposure was defined as area under the curve (AUC) 0-4: >4400 microg x h/L at day 3. The primary outcome was acute rejection (AR) within the first 6 month. In the no basiliximab (control) group, AR occurred in 22% (17/78) of recipients and was strongly associated with low cyclosporine exposure on day 3. AR occurred in 39% (9/23) with cyclosporine AUC0-4 < 4400 microg x h/L compared with 15% (8/55) with AUC0-4 > 4400 microg x h/L (P =.016). In the basiliximab group, AR occurred in only 9% (8/92) of recipients and did not correlate with cyclosporine exposure. AR occurred in 8% (2/24) with cyclosporine AUC0-4 < 4400 microg x h/L compared with 9% (6/68) with AUC0-4 > 4400 microg x h/L (P =.94). Achieving cyclosporine therapeutic targets by day 3 may not be required when anti-IL2 induction is used.
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Affiliation(s)
- F Balbontin
- Kidney Transplant program, Queen Elizabeth II Health Sciences Centre, Halifax, Nova Scotia, Canada
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Persaud DI, Squires J. Child abuse: an overview. Tex Dent J 2000; 117:12-9. [PMID: 11857881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/17/2023]
Affiliation(s)
- D I Persaud
- Department of Pediatrics, University of Texas Southwestern Medical Center at Dallas, USA
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Abstract
We studied the effects of feed intake and fatness on metabolic clearance rate (MCR) and half-life of progesterone in 40 ovariectomized gilts (10x4 littermates). One gilt from each litter was randomly allocated to each of four treatments in a randomized block design. Gilts were reared to be either lean (Ln), 113 kg BW and 10 mm backfat measured 65 mm from the midline at the level of the last rib (P2), or fat (F), 124 kg BW and 20 mm P2 backfat. They were ovariectomized and fitted with bilateral jugular catheters. Fat and Ln gilts were then fed either low (1.15 x maintenance energy, L), or high (2.30 x maintenance energy, H) feed intakes. Gilts received an i.m. injection of 130 mg of progesterone on two consecutive days (d1 and 2). From d 3, progesterone was infused at 5.4 mg/h (130 mg/d) for 60 h. Blood samples for progesterone analysis were taken during the last 24 h of infusion and for a further 72 h. Gilts were then slaughtered, and livers were sampled for microsomal studies. Fatness did not affect any aspect of progesterone metabolism measured. Postprandial MCR was greater in H than in L gilts, 103.0 vs. 76.1 mL x min(-1) x kg BW(-1) (P<.01), respectively. Feed intake did not affect the disappearance rate constant of progesterone (mean -.019), and the estimated half-life of progesterone was 36.5 h. High-intake gilts had larger proportional liver size (P<.001) than L gilts. Microsomal metabolism of progesterone and P450 enzyme concentration were similar across treatments. We conclude that increasing feed intake increases MCR of progesterone and could be used to manipulate progesterone concentration in sows.
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Affiliation(s)
- H M Miller
- Department of Animal Physiology and Nutrition, University of Leeds, UK.
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Affiliation(s)
- J Squires
- The University of Texas Southwestern Medical Center at Dallas, 75235-9063, USA
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Sandhu JS, Gorczynski RM, Waddell J, Nguyen H, Squires J, Waddell J, Boynton EL, Hozumi N. Effect of interleukin-6 secreted by engineered human stromal cells on osteoclasts in human bone. Bone 1999; 24:217-27. [PMID: 10071914 DOI: 10.1016/s8756-3282(98)00172-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The effect of elevated human IL-6 (hIL-6) production by human bone marrow (Hu-BM) stromal cells on osteoclasts in human bone was examined. Human bone was implanted into nonobese diabetic mice with severe combined immunodeficiency (Hu-Bone-NOD/SCID mice). Immunohistochemistry of bone implants and mouse spleens (at 20 weeks), showed human CD45+ cells, B cells, and macrophages in both tissues. Thus, Hu-BM cells survive human bone transplantation and infiltrate mouse tissue. Bone implants had 75 +/- 12% (mean +/- SD) human CD45+ cells, and 9 +/- 4% mouse hematopoietic cells. A retrovirus vector containing the human IL-6 gene was used to transduce Hu-BM stromal cells (IL-6/stromal) and the PA317 cell line (IL-6/PA317). IL-6/ stromal cells (secreting, on average, 17 microg of hIL-6/10(6) cells per 24 h) were injected directly into human bone implants in Hu-Bone-NOD/SCID mice. IL-6/PA317 cells (secreting 16 microg/mL of hIL-6/10(6) cells per 24 h) were injected intraperitoneally into Hu-Bone-NOD/SCID mice. Analyses of sera from both groups of animals showed elevated levels of IL-6. However, only bone implants engrafted with IL-6/stromal cells had a statistically significant increase in osteoclast-lined mineralized trabecular bone surface (BS). Thus, a high concentration of serum hIL-6 in Hu-Bone-NOD/SCID mice alone does not increase osteoclast-lined BS in bone implants. Most importantly, it is the type of human BM cell that secretes the high levels of hIL-6 that is most critical.
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Affiliation(s)
- J S Sandhu
- Department of Surgery, University of Toronto, Samuel Lunenfeld Research Institutet, Mount Sinai Hospital, ON, Canada
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Andersson HK, Hullberg A, Malmgren L, Lundström K, Rydhmer L, Squires J. Sexual Maturity in Entire Male Pigs: Environmental Effects, Relations to Skatole Level and Female Puberty. ACTA AGR SCAND A-AN 1999. [DOI: 10.1080/090647099424169] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Persaud DI, Squires J. Abuse detection in the dental environment. Quintessence Int 1998; 29:459-68. [PMID: 9759065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- D I Persaud
- University of Texas Southwestern Medical Center, Dallas, USA
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Affiliation(s)
- D I Persaud
- University of Texas Southwestern Medical Center at Dallas, Dallas, TX 75235-9063, USA
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Abstract
Examined the Ages and Stages Questionnaires (ASQ), a series of 11 developmental questionnaires designed to be completed by parents and caregivers of young children from 4 to 48 months of age. The ASQ were recently revised and additional psychometric data were gathered. Analyses on over 7,000 questionnaires indicated high test-retest reliability, interobserver reliability, and internal consistency. Concurrent validity using standardized measures yielded on overall agreement of 85%, with a range of 76-91%. Specificity was high across questionnaire intervals while sensitivity was lower and varied across intervals. Use of parent-completed screening tools such as the ASQ is attractive in terms of cost-effectiveness, parental involvement, and flexibility in administration procedures.
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Affiliation(s)
- J Squires
- Center on Human Development, University of Oregon, Eugene 97403-5253, USA
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