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Kopczynska M, Teubner A, Taylor M, Abraham A, Hvas C, Burden S, Carlson G, Lal S. Nutritional autonomy in Short Bowel Syndrome and Intestinal Fistulas. Clin Nutr ESPEN 2022. [DOI: 10.1016/j.clnesp.2022.02.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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2
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Carlson G, Werth S, Shirzaei M. Joint Inversion of GNSS and GRACE for Terrestrial Water Storage Change in California. J Geophys Res Solid Earth 2022; 127:e2021JB023135. [PMID: 35866034 PMCID: PMC9287077 DOI: 10.1029/2021jb023135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 03/03/2022] [Accepted: 03/06/2022] [Indexed: 05/25/2023]
Abstract
Global Navigation Satellite System (GNSS) vertical displacements measuring the elastic response of Earth's crust to changes in hydrologic mass have been used to produce terrestrial water storage change (∆TWS) estimates for studying both annual ∆TWS as well as multi-year trends. However, these estimates require a high observation station density and minimal contamination by nonhydrologic deformation sources. The Gravity Recovery and Climate Experiment (GRACE) is another satellite-based measurement system that can be used to measure regional TWS fluctuations. The satellites provide highly accurate ∆TWS estimates with global coverage but have a low spatial resolution of ∼400 km. Here, we put forward the mathematical framework for a joint inversion of GNSS vertical displacement time series with GRACE ∆TWS to produce more accurate spatiotemporal maps of ∆TWS, accounting for the observation errors, data gaps, and nonhydrologic signals. We aim to utilize the regional sensitivity to ∆TWS provided by GRACE mascon solutions with higher spatial resolution provided by GNSS observations. Our approach utilizes a continuous wavelet transform to decompose signals into their building blocks and separately invert for long-term and short-term mass variations. This allows us to preserve trends, annual, interannual, and multi-year changes in TWS that were previously challenging to capture by satellite-based measurement systems or hydrological models, alone. We focus our study in California, USA, which has a dense GNSS network and where recurrent, intense droughts put pressure on freshwater supplies. We highlight the advantages of our joint inversion results for a tectonically active study region by comparing them against inversion results that use only GNSS vertical deformation as well as with maps of ∆TWS from hydrological models and other GRACE solutions. We find that our joint inversion framework results in a solution that is regionally consistent with the GRACE ∆TWS solutions at different temporal scales but has an increased spatial resolution that allows us to differentiate between regions of high and low mass change better than using GRACE alone.
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Affiliation(s)
- G. Carlson
- Department of Geological SciencesVirginia Polytechnic and State UniversityBlacksburgVAUSA
| | - S. Werth
- Department of Geological SciencesVirginia Polytechnic and State UniversityBlacksburgVAUSA
| | - M. Shirzaei
- Department of Geological SciencesVirginia Polytechnic and State UniversityBlacksburgVAUSA
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3
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Kopczynska M, Teubner A, Taylor M, Abraham A, Hvas C, Burden S, Carlson G, Lal S. Nutritional autonomy in short bowel syndrome and intestinal fistulas. Clin Nutr ESPEN 2021. [DOI: 10.1016/j.clnesp.2021.09.646] [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: 10/19/2022]
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4
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Green MA, Miles L, Sage E, Smith J, Carlson G, Hogan K, Bogucki J, Ferenzi L, Hartman E, Tao Y, Peng Y, Roche AI, Bolenbaugh MA, Wienkes C, Garrison Y, Eilers S. Cardiac biomarkers of disordered eating as a function of diagnostic subtypes. Eat Behav 2020; 39:101425. [PMID: 32916550 PMCID: PMC7704766 DOI: 10.1016/j.eatbeh.2020.101425] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 08/13/2020] [Accepted: 08/13/2020] [Indexed: 10/23/2022]
Abstract
OBJECTIVE The purpose of this study was to identify cardiac biomarkers of disordered eating as a function of diagnostic subtype as assessed via self-report inventory. METHOD Mean heart rate (HR), systolic and diastolic blood pressure, mean R wave amplitude (mV), mean T wave amplitude (mV), QTc interval (sec), Tpeak-Tend interval prolongation (sec), QTc interval prolongation (sec), QRS prolongation (sec), and spectral indicators of cardiac dysfunction (LF/HF spectral ratio, HF spectral power) were assessed via electrocardiography among women with no eating disorder symptoms (n = 32), subclinical eating disorder symptoms (n = 92), anorexia nervosa (n = 7), bulimia nervosa (n = 89), binge eating disorder (BED: n = 20), and other specified feeding and eating disorders (OSFED: n = 19). RESULTS MANOVA results showed statistically significant group differences. Follow-up tests revealed significantly decreased mean R wave amplitude among participants with self-indicated clinical (bulimia nervosa, binge eating disorder) and subclinical forms of disordered eating compared to asymptomatic controls. DISCUSSION Results suggest decreased mean R wave amplitude is a promising cardiac biomarker of disordered eating.
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Affiliation(s)
- M. A. Green
- Cornell College Eating Disorder Institute, Cornell College, 600 First Street SW, Mt. Vernon, IA 52314
| | - L. Miles
- Cornell College Eating Disorder Institute, Cornell College, 600 First Street SW, Mt. Vernon, IA 52314
| | - E. Sage
- Cornell College Eating Disorder Institute, Cornell College, 600 First Street SW, Mt. Vernon, IA 52314
| | - J. Smith
- Cornell College Eating Disorder Institute, Cornell College, 600 First Street SW, Mt. Vernon, IA 52314
| | - G. Carlson
- Cornell College Eating Disorder Institute, Cornell College, 600 First Street SW, Mt. Vernon, IA 52314
| | - K. Hogan
- Cornell College Eating Disorder Institute, Cornell College, 600 First Street SW, Mt. Vernon, IA 52314
| | - J. Bogucki
- Cornell College Eating Disorder Institute, Cornell College, 600 First Street SW, Mt. Vernon, IA 52314
| | - L. Ferenzi
- Cornell College Eating Disorder Institute, Cornell College, 600 First Street SW, Mt. Vernon, IA 52314
| | - E. Hartman
- Cornell College Eating Disorder Institute, Cornell College, 600 First Street SW, Mt. Vernon, IA 52314
| | - Y. Tao
- Cornell College Eating Disorder Institute, Cornell College, 600 First Street SW, Mt. Vernon, IA 52314
| | - Y. Peng
- Cornell College Eating Disorder Institute, Cornell College, 600 First Street SW, Mt. Vernon, IA 52314
| | - A. I. Roche
- University of Iowa, Department of Psychological and Brain Sciences, W311 Seashore Hall, Iowa City, IA 52242
| | - M. A. Bolenbaugh
- University of Iowa, Department of Psychological & Quantitative Foundations, 240 South Madison Street, Iowa City, Iowa 52240
| | - C. Wienkes
- University of Iowa, Department of Psychological & Quantitative Foundations, 240 South Madison Street, Iowa City, Iowa 52240
| | - Y. Garrison
- University of Iowa, Department of Psychological & Quantitative Foundations, 240 South Madison Street, Iowa City, Iowa 52240
| | - S. Eilers
- Mercy Medical Center, 1340 Blairs Ferry Rd NE, Hiawatha, IA 52233
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Mendoza J, Carlson G, Nath P, Quinn J. P100 A REVIEW OF ADHERENCE WITH SUBCUTANEOUS IMMUNOTHERAPY (SCIT) IN HEALTHCARE SYSTEM WITHOUT OUT-OF-POCKET PATIENT EXPENSES. Ann Allergy Asthma Immunol 2020. [DOI: 10.1016/j.anai.2020.08.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Zhu R, Carlson G, Kelly M, Song Y, Fung CH, Mitchell MN, Josephson KR, Zeidler MR, Badr MS, Alessi CA, Washington DL, Yano EM, Martin JL. 0581 Characteristics of US Women Veterans with Sleep Apnea: Results of a National Survey of VA Healthcare Users. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Sleep apnea (SA) is the most commonly diagnosed sleep disorder among patients in the US Veterans Administration (VA). The dramatic rise in women receiving VA care makes it essential to understand the presentation and treatment of SA in women Veterans. We performed a nationwide survey about sleep among US women Veterans and compared characteristics of respondents with and without a self-reported history of SA diagnosis and treatment.
Methods
A survey was mailed to a random sample of 4000 women VA healthcare users. The survey included demographics, Insomnia Severity Index (ISI), Patient Health Questionnaire-4 (PHQ-4 depression/anxiety), Primary Care-Post-Traumatic Stress Disorder (PC-PTSD), RLS symptom presence, SA symptoms (snore loudly, observed breathing pauses), diagnosis of SA, and use of PAP therapy (APAP, BPAP, CPAP). We compared women with and without SA, and (among those with SA) women who did and did not use PAP, using Chi-square and t-tests.
Results
1,498 completed surveys were returned (mean age 51.6 years, range 18-105 years, 62% non-Hispanic White). 200 respondents (13.4%) reported diagnosed SA. Women with SA were older (p<.001), likely to be employed (p=.013), more likely to snore loudly (p<.001) and to have breathing pauses while asleep (p<.001). They also had higher ISI (p<.001), were more like to report RLS (p<.001) nightmares (p=.027), and had higher PHQ-4 (p<.001) and PC-PTSD (p<.001) scores. Among women with SA, 130 (65%) used PAP. Loud snorers (p<.001) and those with observed breathing pauses were more likely to use PAP (p<.001).
Conclusion
One in 7 women who receive VA care report diagnosed SA. Women with SA had more mental health symptoms and comorbid sleep problems. Most reported using PAP therapy, although the amount of use is unknown. Those with SA symptoms were more likely to use PAP. Future work is needed to understand barriers to diagnosis and treatment of SA among women Veterans.
Support
Funding: VA Quality Enhancement Research Initiative RRP12-189 (Martin); NIH/NHLBI K24 HL143055 (Martin).
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Affiliation(s)
- R Zhu
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA
| | - G Carlson
- VA Health Services Research & Development Center for the Study of Healthcare Innovation, Implementation, and Policy, VA Greater Los Angeles Healthcare System, Los Angeles, CA
| | - M Kelly
- VA Greater Los Angeles Healthcare System, Los Angeles, CA
| | - Y Song
- Geriatric Research Education and Clinical Center, VA Greater Los Angeles Healthcare System, North Hills, CA
- School of Nursing at the University of California, Los Angeles, Los Angeles, CA
| | - C H Fung
- Geriatric Research Education and Clinical Center, VA Greater Los Angeles Healthcare System, North Hills, CA
- Department of Medicine, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA
| | - M N Mitchell
- Geriatric Research Education and Clinical Center, VA Greater Los Angeles Healthcare System, Los Angeles, CA
| | - K R Josephson
- Geriatric Research Education and Clinical Center, VA Greater Los Angeles Healthcare System, Los Angeles, CA
| | - M R Zeidler
- Geriatric Research Education and Clinical Center, VA Greater Los Angeles Healthcare System, North Hills, CA
- Department of Medicine, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA
| | - M S Badr
- Department of Internal Medicine, Wayne State University School of Medicine, Detroit, MI
- John D. DIngell VA Medical Center, Detroit, MI
| | - C A Alessi
- Geriatric Research Education and Clinical Center, VA Greater Los Angeles Healthcare System, North Hills, CA
- Department of Medicine, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA
| | - D L Washington
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA
| | - E M Yano
- VA Health Services Research & Development Center for the Study of Healthcare Innovation, Implementation, and Policy, VA Greater Los Angeles Healthcare System, Los Angeles, CA
| | - J L Martin
- Geriatric Research Education and Clinical Center, VA Greater Los Angeles Healthcare System, North Hills, CA
- Department of Medicine, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA
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Dzierzewski JM, Zhu R, Donovan EK, Perez E, Song Y, Kelly MR, Carlson G, Fung CH, Alessi C, Martin JL. 0537 Cognitive Functioning Before and After Insomnia Treatment in Women Veterans. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Women are at higher risk for cognitive impairment and dementia compared to men. Identifying potentially treatable risk factors such as insomnia is an important clinical goal. In a trial comparing two behavioral treatments for insomnia in women veterans, we hypothesized that 1) worse baseline insomnia severity would be associated with poorer cognitive function, and 2) improvement in insomnia severity with treatment would be associated with improvement in cognitive functioning.
Methods
347 women veterans with insomnia disorder [mean age 48.3 (12.9) years] completed baseline testing. Of these, 149 women were randomized to receive cognitive behavioral therapy for insomnia (CBT-I) or acceptance and commitment (ACT) based insomnia treatment (both treatments included sleep restriction, stimulus control, and sleep hygiene). Insomnia Severity Index (ISI) was assessed at baseline, post-treatment, and 3-month follow-up. Cognitive functioning was measured with Symbol Digit Coding (SDC) and Trail Making Test A and B (TMTA and TMTB). Pearson correlations were used to examine associations between insomnia severity and cognitive functioning at baseline and changes in both insomnia severity and cognitive functioning from before to after treatment.
Results
At baseline (N=347), mean ISI was 14.1 (5.3). Worse baseline ISI was associated with worse baseline cognitive functioning on TMTA (r=-.15, p<.01) and SDC (r=-.12, p<.05). In the randomized sample (N=149), ISI scores improved at post-treatment (mean ISI change= -9.0; p<.001) and 3-month follow-up (mean change= -8.0; p<.001) relative to baseline. Improvement in ISI from baseline to post-treatment was significantly associated with improvement in SDC from baseline to post-treatment (r=-.18, p<.05), but not improvement in TMTA and TMTB. Change in ISI was not significantly related to change in cognitive tasks from baseline to 3-month follow-up.
Conclusion
More severe insomnia is associated with worse cognitive functioning in women veterans. The magnitude of improvement in insomnia symptoms may be associated with improvement in cognition.
Support
NIH/NIA K23AG049955 (PI: Dzierzewski); VA/HSR&D IIR-HX002300 (PI: Martin), NIH/NHLBI K24HL143055 (PI: Martin).
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Affiliation(s)
- J M Dzierzewski
- Department of Psychology, Virginia Commonwealth University, VA
| | - R Zhu
- VA Greater Los Angeles, Los Angeles, CA
| | - E K Donovan
- Department of Psychology, Virginia Commonwealth University, VA
| | - E Perez
- Department of Psychology, Virginia Commonwealth University, VA
| | - Y Song
- University of California, Los Angeles, Los Angeles, CA
| | - M R Kelly
- VA Greater Los Angeles, Los Angeles, CA
| | - G Carlson
- VA Greater Los Angeles, Los Angeles, CA
| | - C H Fung
- VA Greater Los Angeles, Los Angeles, CA
- University of California, Los Angeles, Los Angeles, CA
| | - C Alessi
- VA Greater Los Angeles, Los Angeles, CA
- University of California, Los Angeles, Los Angeles, CA
| | - J L Martin
- VA Greater Los Angeles, Los Angeles, CA
- University of California, Los Angeles, Los Angeles, CA
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8
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Bond A, Soop M, Taylor M, Purssell H, Abraham A, Teubner A, Carlson G, Lal S. Home parenteral nutrition and the older adult: Experience from a national intestinal failure unit. Clin Nutr 2020; 39:1418-1422. [DOI: 10.1016/j.clnu.2019.06.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 06/19/2019] [Accepted: 06/22/2019] [Indexed: 12/18/2022]
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9
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Duffy A, Carlson G, Dubicka B, Hillegers MHJ. Pre-pubertal bipolar disorder: origins and current status of the controversy. Int J Bipolar Disord 2020; 8:18. [PMID: 32307651 PMCID: PMC7167382 DOI: 10.1186/s40345-020-00185-2] [Citation(s) in RCA: 28] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 03/17/2020] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Evidence from epidemiological, clinical and high-risk studies has established that the peak period of risk for onset of bipolar disorder spans late adolescence and early adulthood. However, the proposal of the existence of a pre-pubertal form of bipolar disorder manifesting in early childhood created substantial debate. In this narrative review, the literature and contributing factors pertaining to the controversy surrounding the proposed pre-pubertal bipolar disorder subtype are discussed. The resolution of the debate and lessons learned are highlighted. MAIN BODY In the mid 1990s US researchers proposed that chronic irritability and explosive temper in pre-pubertal children with pre-existing ADHD and/or other learning and developmental disorders might represent a variant of mania. A number of factors contributed to this proposal including severely ill children with no diagnostic home given changes in the ADHD DSM diagnostic criteria and over-reliance on symptoms and structured interviews rather than on a clinical assessment incorporating developmental history, social context and clinical course. Prospective studies of children at high familial risk did not support the proposed pre-pubertal bipolar phenotype; but rather provided convergent evidence that bipolar disorder onset in adolescence and early adulthood not uncommonly preceded by sleep and internalizing symptoms and most often debuting as depression in adolescence (after puberty). Epidemiological studies of population and hospital discharge data provided evidence that the pre-pubertal bipolar phenotype was largely a US driven phenomenon. CONCLUSIONS Psychiatric diagnosis is particularly challenging given the current lack of objective biomarkers. However, validity and utility of clinical diagnoses can be strengthened if all available predictive information is used to formulate a diagnosis. As in other areas of medicine, critical information required to make a valid diagnosis includes developmental history, clinical course, family history and treatment response-weighed against the known trajectories of classical disorders. Moreover, given that psychiatric disorders are in evolution over childhood and adolescence and symptoms, in of themselves, are often non-specific, a thorough clinical assessment incorporating collateral history and psychosocial context is paramount. Such an approach might have avoided or at least brought a more timely resolution to the debate on pre-pubertal mania.
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Affiliation(s)
- A. Duffy
- Queen’s University, Kingston, Canada
- Department of Psychiatry, University Oxford, Oxford, UK
| | - G. Carlson
- Renaissance School of Medicine, Stonybrook University, Stony Brook, NY USA
| | - B. Dubicka
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - M. H. J. Hillegers
- Department of Child and Adolescent Psychiatry and Psychology, Erasmus Medical Center-Sophia Children’s Hospital, Rotterdam, The Netherlands
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Carlson G, Shirzaei M, Werth S, Zhai G, Ojha C. Seasonal and Long-Term Groundwater Unloading in the Central Valley Modifies Crustal Stress. J Geophys Res Solid Earth 2020; 125:e2019JB018490. [PMID: 33163318 PMCID: PMC7607378 DOI: 10.1029/2019jb018490] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 12/12/2019] [Accepted: 12/29/2019] [Indexed: 05/31/2023]
Abstract
Changes in terrestrial water content cause elastic deformation of the Earth's crust. This deformation is thought to play a role in modulating crustal stress and seismicity in regions where large water storage fluctuations occur. Groundwater is an important component of total water storage change in California, helping to drive annual water storage fluctuations and loss during periods of drought. Here we use direct estimates of groundwater volume loss during the 2007-2010 drought in California's Central Valley obtained from high resolution Interferometric Synthetic Aperture Radar-based vertical land motion data to investigate the effect of groundwater volume change on the evolution of the stress field. We show that GPS-derived elastic load models may not capture the contribution of groundwater to terrestrial water loading, resulting in an underestimation of nontectonic crustal stress change. We find that groundwater unloading during the drought causes Coulomb stress change of up to 5.5 kPa and seasonal fluctuations of up to 2.6 kPa at seismogenic depth. We find that faults near the Valley show the largest stress change and the San Andreas fault experiences only ~40 Pa of Coulomb stress change over the course of a year from groundwater storage change. Annual Coulomb stress change peaks dominantly in the fall, when the groundwater level is low; however, some faults experience peak stress in the spring when groundwater levels are higher. Additionally, we find that periods of increased stress correlate with higher than average seismic moment release but are not correlated with an increase in the number of earthquakes. This indicates groundwater loading likely contributes to nontectonic loading of faults, especially near the Valley edge, but is not a dominant factor in modulation of seismicity in California because the amplitude of stress change declines rapidly with distance from the Valley. By carefully quantifying and spatially locating groundwater fluctuations, we will improve our understanding of what drives nontectonic stress and forces that modulate seismicity in California.
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Affiliation(s)
- G. Carlson
- School of Earth and Space ExplorationArizona State UniversityTempeAZUSA
| | - M. Shirzaei
- School of Earth and Space ExplorationArizona State UniversityTempeAZUSA
| | - S. Werth
- School of Earth and Space ExplorationArizona State UniversityTempeAZUSA
- School of Geographical Sciences and Urban PlanningArizona State UniversityTempeAZUSA
| | - G. Zhai
- School of Earth and Space ExplorationArizona State UniversityTempeAZUSA
- Department of Earth and Planetary ScienceUniversity of CaliforniaBerkeleyCAUSA
| | - C. Ojha
- School of Earth and Space ExplorationArizona State UniversityTempeAZUSA
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Carlson G, Coop C. M228 EARLY PRESENTATION OF SECONDARY SELECTIVE IGM DEFICIENCY - LIKE THE SPREADING CRACK ON A DAM. Ann Allergy Asthma Immunol 2019. [DOI: 10.1016/j.anai.2019.08.200] [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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12
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Soop M, Khan H, Nixon E, Teubner A, Abraham A, Carlson G, Lal S. SUN-PO306: Causes and Outcomes of Intestinal Failure in Crohn’s Disease: An 18-Year Experience from a National Centre. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32936-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Bond A, Purssell H, Taylor M, Teubner A, Abraham A, Soop M, Carlson G, Lal S. Home parenteral nutrition in the elderly: experience from a national intestinal failure centre. Clin Nutr ESPEN 2019. [DOI: 10.1016/j.clnesp.2018.12.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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14
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Bond A, Teubner A, Taylor M, Cawley C, Abraham A, Dibb M, Chadwick P, Soop M, Carlson G, Lal S. Assessing the impact of quality improvement measures on catheter related blood stream infections and catheter salvage: Experience from a national intestinal failure unit. Clin Nutr 2018; 37:2097-2101. [DOI: 10.1016/j.clnu.2017.10.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 09/21/2017] [Accepted: 10/03/2017] [Indexed: 10/18/2022]
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15
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Carlson G, Coop C. LONG TERM TREATMENT OF SYSTEMIC MASTOCYTOSIS WITH OMALIZUMAB. Ann Allergy Asthma Immunol 2018. [DOI: 10.1016/j.anai.2018.09.212] [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: 10/27/2022]
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Sawbridge D, Burden S, Stevens P, Soop M, Carlson G, Lal S. Systematic review: The role of somatostatin analogues in the management of enterocutaneous fistulae. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Bond A, Teubner A, Taylor M, Cawley C, Varden J, Abraham A, Chadwick P, Soop M, Carlson G, Lal S. Catheter related infections in patients with acute type ii intestinal failure admitted to a national centre: Incidence and outcomes. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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18
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Bond A, Taylor M, Abraham A, Teubner A, Soop M, Carlson G, Lal S. Factors influencing parenteral nutrition requirements and glucogan like peptide-2 analogue suitability in a type three intestinal failure cohort: Experience from a national U.K. intestinal failure unit. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Bond A, Taylor M, Abraham A, Teubner A, Soop M, Carlson G, Lal S. Examining the pathophysiology of short bowel syndrome and glucagon-like peptide 2 analogue suitability in chronic intestinal failure: experience from a national intestinal failure unit. Eur J Clin Nutr 2018; 73:751-756. [PMID: 30111847 DOI: 10.1038/s41430-018-0278-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 07/16/2018] [Accepted: 07/18/2018] [Indexed: 01/22/2023]
Abstract
INTRODUCTION Short bowel syndrome (SBS) is a leading cause of intestinal failure (IF). Home parenteral nutrition (HPN) remains the standard treatment, with small intestinal transplantation reserved for cases with severe complications to HPN. There have recently been significant developments in growth factor therapy. We aimed to develop a greater contemporary understanding of our SBS-IF subset. METHOD We performed a retrospective observational study of a prospectively maintained HPN audit database in October 2017. Intestinal anatomical details and parenteral requirements were recorded. Each case was assessed for eligibility for growth factor therapy using recently published trials. RESULTS Of 273 patients receiving HPN, 152 (55.7%) had type three IF as a result of SBS (SBS-IF), with a mean duration of HPN of 61 months (range 4-416). Mean length of small intestine was 98 cm. Furthermore, 114 (41.8%) patients had an end jejunostomy (SBS-J), 18 (6.6%) had an end ileostomy, and 7.3% of patients had all or part of the colon-in-continuity. Crohn's disease was the most common underlying pathology. Univariate analysis for the whole HPN cohort demonstrated SBS-IF and a longer duration of HPN to be associated with higher PN energy requirements, p ≤ 0.0001. Of all, 73 (48%) patients with SBS-IF were deemed suitable for GLP-2 analogue therapy, with co-morbidity being the most frequent cause of non-suitability (29.1%). CONCLUSION We describe a large U.K. HPN cohort using ESPEN pathophysiological and clinical severity classification. The majority of patients with SBS-IF had a jejunostomy and relatively few had colon-in-continuity. Co-morbidity is the most common contra-indication to GLP-2 analogue therapy. CLINICAL RELEVANCY GLP-2 analogues are emerging as an important treatment for patients with short bowel syndrome. Our study explores patient suitability in a large HPN cohort managed in a national IF centre. Furthermore, the international variation in the pathophysiology of SBS-IF varies significantly, which can have a bearing on PN requirements and outcomes when GLP-2 analogues are used.
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Affiliation(s)
- A Bond
- Intestinal Failure Unit, Salford Royal NHS Foundation Trust, Salford, UK.
| | - M Taylor
- Intestinal Failure Unit, Salford Royal NHS Foundation Trust, Salford, UK
| | - A Abraham
- Intestinal Failure Unit, Salford Royal NHS Foundation Trust, Salford, UK
| | - A Teubner
- Intestinal Failure Unit, Salford Royal NHS Foundation Trust, Salford, UK
| | - M Soop
- Intestinal Failure Unit, Salford Royal NHS Foundation Trust, Salford, UK.,School of Medical Sciences, University of Manchester, Manchester, UK
| | - G Carlson
- Intestinal Failure Unit, Salford Royal NHS Foundation Trust, Salford, UK.,School of Medical Sciences, University of Manchester, Manchester, UK
| | - S Lal
- Intestinal Failure Unit, Salford Royal NHS Foundation Trust, Salford, UK.,School of Medical Sciences, University of Manchester, Manchester, UK
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Simpson RG, Quayle J, Stylianides N, Carlson G, Soop M. Intravenous fluid and electrolyte administration in elective gastrointestinal surgery: mechanisms of excessive therapy. Ann R Coll Surg Engl 2017; 99:497-503. [PMID: 28660810 DOI: 10.1308/rcsann.2017.0077] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
INTRODUCTION While clinical guidelines stress the importance of the judicious perioperative intravenous fluid administration, data show that adherence to these protocols is poor. The reasons have not been identified. We therefore audited the magnitude and indications of fluid and electrolyte administration in a teaching hospital. We hypothesised that epidural analgesia is associated with excessive fluid therapy. MATERIALS AND METHODS Intravenous fluid and electrolyte administration during the day of surgery and the subsequent 2 days in consecutive patients undergoing elective gastrointestinal surgery between November 2013 and May 2014 were retrospectively audited. Timing, volumes and indications were recorded. RESULTS One hundred patients undergoing elective gastrointestinal resection were studied. Patients received 9030 ml ± 2860 ml (mean ± standard deviation) intravenous fluids containing a total of 1180 ml ± 420 mmol sodium and resulting in a cumulative fluid balance of +5120 ml ± 2510 ml; 44% ± 14% of total volumes were given in theatre. Nearly all fluid was given for maintenance, 100% (96-100%, interquartile range), with 17 patients only receiving replacement or resuscitation. Independent predictors of increased volumes included open surgery, upper gastrointestinal surgery, increased duration and epidural analgesia but not body weight. Postoperative fluid volume was the only independent predictor of postoperative complication grade (P = 0.0044). CONCLUSIONS Despite published guidelines, perioperative fluid and electrolyte administration were excessive and were associated with postoperative morbidity. Substantial volumes were administered in theatre. Nearly all administration was for maintenance, yet patients received approximately five times the amount of sodium required. Epidural analgesia was an independent predictor of fluid volumes but body weight was not.
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Affiliation(s)
- R G Simpson
- Department of Surgery, Salford Royal Foundation Trust , Salford , UK
| | - J Quayle
- Department of Surgery, Salford Royal Foundation Trust , Salford , UK
| | - N Stylianides
- Department of Surgery, Salford Royal Foundation Trust , Salford , UK
| | - G Carlson
- Department of Surgery, Salford Royal Foundation Trust , Salford , UK
| | - M Soop
- Department of Surgery, Salford Royal Foundation Trust , Salford , UK
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Vaizey CJ, Maeda Y, Barbosa E, Bozzetti F, Calvo J, Irtun Ø, Jeppesen PB, Klek S, Panisic-Sekeljic M, Papaconstantinou I, Pascher A, Panis Y, Wallace WD, Carlson G, Boermeester M. European Society of Coloproctology consensus on the surgical management of intestinal failure in adults. Colorectal Dis 2016; 18:535-48. [PMID: 26946219 DOI: 10.1111/codi.13321] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 01/22/2016] [Indexed: 12/19/2022]
Abstract
Intestinal failure (IF) is a debilitating condition of inadequate nutrition due to an anatomical and/or physiological deficit of the intestine. Surgical management of patients with acute and chronic IF requires expertise to deal with technical challenges and make correct decisions. Dedicated IF units have expertise in patient selection, operative risk assessment and multidisciplinary support such as nutritional input and interventional radiology, which dramatically improve the morbidity and mortality of this complex condition and can beneficially affect the continuing dependence on parenteral nutritional support. Currently there is little guidance to bridge the gap between general surgeons and specialist IF surgeons. Fifteen European experts took part in a consensus process to develop guidance to support surgeons in the management of patients with IF. Based on a systematic literature review, statements were prepared for a modified Delphi process. The evidence for each statement was graded using Oxford Centre for Evidence-Based Medicine Levels of Evidence. The current paper contains the statements reflecting the position and practice of leading European experts in IF encompassing the general definition of IF surgery and organization of an IF unit, strategies to prevent IF, management of acute IF, management of wound, fistula and stoma, rehabilitation, intestinal and abdominal reconstruction, criteria for referral to a specialist unit and intestinal transplantation.
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Affiliation(s)
| | - C J Vaizey
- The Lennard Jones Intestinal Failure Unit, St Mark's Hospital, Northwick Park, Harrow, UK.,Imperial College London, London, UK
| | - Y Maeda
- The Lennard Jones Intestinal Failure Unit, St Mark's Hospital, Northwick Park, Harrow, UK.,Imperial College London, London, UK
| | - E Barbosa
- Serviço de Cirurgia, Hospital Pedro Hispano, Senhora da Hora, Portugal
| | - F Bozzetti
- Faculty of Medicine, University of Milan, Milan, Italy
| | - J Calvo
- Department of General, Digestive, Hepato-Biliary-Pancreatic Surgery and Abdominal Organ Transplantation Unit, University Hospital 12 de Octubre, Madrid, Spain
| | - Ø Irtun
- Gastrosurgery Research Group, UiT the Arctic University of Norway, University Hospital North-Norway, Tromsø, Norway.,Department of Gastroenterologic Surgery, University Hospital North-Norway, Tromsø, Norway
| | - P B Jeppesen
- Department of Medical Gastroenterology CA-2121, Rigshospitalet, Copenhagen, Denmark
| | - S Klek
- General and Oncology Surgery, General and Oncology Unit, Stanley Dudrick's Memorial Hospital, Skawina, Poland
| | - M Panisic-Sekeljic
- Department for Perioperative Nutrition, Clinic for General Surgery, Military Medical Academy, Belgrade, Serbia
| | - I Papaconstantinou
- 2nd Department of Surgery, Areteion Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - A Pascher
- Department of General, Visceral, Vascular, Thoracic and Transplant Surgery, Charité - Universitaetsmedizin Berlin, Berlin, Germany
| | - Y Panis
- Colorectal Department, Beaujon Hospital and University Paris VII, Clichy, France
| | - W D Wallace
- Northern Ireland Regional Intestinal Failure Service, Belfast City Hospital, Belfast, UK
| | - G Carlson
- National Intestinal Failure Centre, Salford Royal NHS Foundation Trust, University of Manchester, Salford, Manchester, UK
| | - M Boermeester
- Department of Surgery/Intestinal Failure Team, Academic Medical Center, Amsterdam, The Netherlands
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Allan PJ, Stevens P, Abraham A, Paine P, Farrer K, Teubner A, Carlson G, Lal S. Outcome of intestinal failure after bariatric surgery: experience from a national UK referral centre. Eur J Clin Nutr 2016; 70:772-8. [DOI: 10.1038/ejcn.2016.37] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 10/08/2015] [Accepted: 10/17/2015] [Indexed: 12/27/2022]
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23
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Simpson R, Quale J, Stylianides N, Carlson G, Soop M. MON-PP275: Fluid Therapy in Current Surgical Daily Practice: An Analysis of the Magnitude and Causes of Perioperative Fluid Excess. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30707-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Allan P, Nixon E, Sidhu S, Teubner A, Abraham A, Carlson G, Lal S. PP152-SUN: Development and Outcome of Intestinal Failure in Crohn’s Disease: 3 Decades of Experience. Clin Nutr 2014. [DOI: 10.1016/s0261-5614(14)50194-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Lal S, Donaldson E, Taylor M, Abraham A, Carlson G, Fletcher O, Varden J, Teubner A. PP264-MON: Improving Quality in a National Intestinal Failure Unit: Greater Efficiency, Improved Access, Reduced Mortality. Clin Nutr 2014. [DOI: 10.1016/s0261-5614(14)50598-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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26
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Waksman R, Maya J, Angiolillo D, Carlson G, Teng R, Caplan R, Ferdinand K. CRT-99 ∗ Ticagrelor Versus Clopidogrel in African American Patients with Stable Coronary Artery Disease: A Randomized, Open-label, Multiple-dose, Crossover Study. JACC Cardiovasc Interv 2014. [DOI: 10.1016/j.jcin.2013.12.017] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Essén-Gustavsson B, Jensen-Waern M, Lindholm A, Valberg S, Carlson G. Curriculum vitae paper - Sune G.B. Persson (1931-2009). Comparative Exercise Physiology 2013. [DOI: 10.3920/cep13x02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Sune Persson was born in Landskrona Sweden in 1931 and grew up on the west coast of Sweden. He graduated from the Royal Veterinary College in Stockholm in 1960 and in 1967 received his PhD entitled ‘On blood volume and working capacity in horses’. Sune pursued an academic career devoted to internal medicine and exercise physiology. He rapidly became Professor of Medicine in 1979 as the veterinary school moved from Stockholm to the Swedish University of Agricultural Sciences in Uppsala.
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Affiliation(s)
- B. Essén-Gustavsson
- Department of Clinical Sciences, Section for Comparative Physiology and Medicine, Swedish University of Agricultural Sciences, P.O. Box 7018, 750 07 Uppsala, Sweden
| | - M. Jensen-Waern
- Department of Clinical Sciences, Section for Comparative Physiology and Medicine, Swedish University of Agricultural Sciences, P.O. Box 7018, 750 07 Uppsala, Sweden
| | - A. Lindholm
- Department of Clinical Sciences, Section for Comparative Physiology and Medicine, Swedish University of Agricultural Sciences, P.O. Box 7018, 750 07 Uppsala, Sweden
| | - S. Valberg
- Equine Center, Neuromuscular Diagnostic Laboratory, University of Minnesota, 1333 Gortner Avenue, St. Paul, MN 55108-1098, USA
| | - G.P. Carlson
- Faculty of Veterinary Medicine, Department of Medicine and Epidemiology, University of California, One Shields Avenue, Davis, CA 95616, USA
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Forde C, Farrer K, Meskell R, Anderson I, Slade D, Lees N, Watson D, Carlson G. PP045-MON LONG TERM METABOLIC AND CLINICAL EFFECTS OF PREOPERATIVE CARBOHYDRATE LOADING. A PROSPECTIVE RANDOMISED CLINICAL TRIAL. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/s1744-1161(12)70384-8] [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: 10/27/2022]
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Gandal MJ, Sisti J, Klook K, Ortinski PI, Leitman V, Liang Y, Thieu T, Anderson R, Pierce RC, Jonak G, Gur RE, Carlson G, Siegel SJ. GABAB-mediated rescue of altered excitatory-inhibitory balance, gamma synchrony and behavioral deficits following constitutive NMDAR-hypofunction. Transl Psychiatry 2012; 2:e142. [PMID: 22806213 PMCID: PMC3410621 DOI: 10.1038/tp.2012.69] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Reduced N-methyl-D-aspartate-receptor (NMDAR) signaling has been associated with schizophrenia, autism and intellectual disability. NMDAR-hypofunction is thought to contribute to social, cognitive and gamma (30-80 Hz) oscillatory abnormalities, phenotypes common to these disorders. However, circuit-level mechanisms underlying such deficits remain unclear. This study investigated the relationship between gamma synchrony, excitatory-inhibitory (E/I) signaling, and behavioral phenotypes in NMDA-NR1(neo-/-) mice, which have constitutively reduced expression of the obligate NR1 subunit to model disrupted developmental NMDAR function. Constitutive NMDAR-hypofunction caused a loss of E/I balance, with an increase in intrinsic pyramidal cell excitability and a selective disruption of parvalbumin-expressing interneurons. Disrupted E/I coupling was associated with deficits in auditory-evoked gamma signal-to-noise ratio (SNR). Gamma-band abnormalities predicted deficits in spatial working memory and social preference, linking cellular changes in E/I signaling to target behaviors. The GABA(B)-receptor agonist baclofen improved E/I balance, gamma-SNR and broadly reversed behavioral deficits. These data demonstrate a clinically relevant, highly translatable neural-activity-based biomarker for preclinical screening and therapeutic development across a broad range of disorders that share common endophenotypes and disrupted NMDA-receptor signaling.
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Affiliation(s)
- M J Gandal
- Translational Neuroscience Program, Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA
| | - J Sisti
- Translational Neuroscience Program, Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA
| | - K Klook
- Translational Neuroscience Program, Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA,Department of Psychiatry and Psychotherapy, RWTH Aachen University, Aachen, Germany
| | - P I Ortinski
- Center for Neurobiology and Behavior, Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA
| | - V Leitman
- Translational Neuroscience Program, Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA
| | - Y Liang
- Translational Neuroscience Program, Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA
| | - T Thieu
- Translational Neuroscience Program, Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA
| | - R Anderson
- Translational Neuroscience Program, Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA
| | - R C Pierce
- Center for Neurobiology and Behavior, Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA
| | - G Jonak
- Translational Neuroscience Program, Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA
| | - R E Gur
- Neuropsychiatry Program, Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA
| | - G Carlson
- Center for Neurobiology and Behavior, Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA
| | - S J Siegel
- Translational Neuroscience Program, Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA,Director, Translational Neuroscience Program, Department of Psychiatry, University of Pennsylvania, Translational Research Laboratories, 125 S. 31st Street, Philadelphia, PA 19104, USA. E-mail: or
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Li C, Barclay H, Hans H, Liu J, Klos R, Carlson G. Accuracy in population estimation: A methodological consideration. Ecological Complexity 2010. [DOI: 10.1016/j.ecocom.2010.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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31
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Mathesius CA, Barnett JF, Cressman RF, Ding J, Carpenter C, Ladics GS, Schmidt J, Layton RJ, Zhang JXQ, Appenzeller LM, Carlson G, Ballou S, Delaney B. Safety assessment of a modified acetolactate synthase protein (GM-HRA) used as a selectable marker in genetically modified soybeans. Regul Toxicol Pharmacol 2009; 55:309-20. [PMID: 19682528 DOI: 10.1016/j.yrtph.2009.08.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2009] [Revised: 08/04/2009] [Accepted: 08/06/2009] [Indexed: 11/24/2022]
Abstract
Acetolactate synthase (ALS) enzymes have been isolated from numerous organisms including soybeans (Glycine max; GM-ALS) and catalyze the first common step in biosynthesis of branched chain amino acids. Expression of an ALS protein (GM-HRA) with two amino acid changes relative to native GM-ALS protein in genetically modified soybeans confers tolerance to herbicidal active ingredients and can be used as a selectable transformation marker. The safety assessment of the GM-HRA protein is discussed. Bioinformatics comparison of the amino acid sequence did not identify similarities to known allergenic or toxic proteins. In vitro studies demonstrated rapid degradation in simulated gastric fluid (<30s) and intestinal fluid (<1min). The enzymatic activity was completely inactivated at 50 degrees C for 15 min demonstrating heat lability. The protein expressed in planta is not glycosylated and genetically modified soybeans expressing the GM-HRA protein produced similar protein/allergen profiles as its non-transgenic parental isoline. No adverse effects were observed in mice following acute oral exposure at a dose of at least 436 mg/kg of body weight or in a 28-day repeated dose dietary toxicity study at doses up to 1247 mg/kg of body weight/day. The results demonstrate GM-HRA protein safety when used in agricultural biotechnology.
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Affiliation(s)
- C A Mathesius
- Pioneer Hi-Bred International, Inc., Ankeny, IA, USA
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Yee AJ, Yoo JU, Marsolais EB, Carlson G, Poe-Kochert C, Bohlman HH, Emery SE. Use of a postoperative lumbar corset after lumbar spinal arthrodesis for degenerative conditions of the spine. A prospective randomized trial. J Bone Joint Surg Am 2008; 90:2062-8. [PMID: 18829902 DOI: 10.2106/jbjs.g.01093] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Lumbosacral corsets and braces have been used to treat a variety of spinal disorders. Although their use after lumbar arthrodesis for degenerative conditions has been reported, there is a lack of evidence on which to base guidelines on their use. The purpose of this study was to evaluate the effect of a postoperative corset on the outcome of lumbar arthrodesis. METHODS A prospective randomized trial was performed in which patients who wore a postoperative lumbar corset for eight weeks full-time after a posterior lumbar arthrodesis for a degenerative spinal condition were compared with those who did not use a corset after such an operation. Ninety patients were randomized to one of the two treatments. A history was recorded and patients were assessed with a physical examination, radiographs, and functional outcome questionnaires (the Dallas Pain Questionnaire [DPQ] and the Short Form-36 [SF-36]) preoperatively and at one year and two years following the surgery. The primary outcome measure of the study was the DPQ, a disease-specific patient-derived functional measure of the spine, and secondary end points included the SF-36 scores, complications, rates of fusion as determined radiographically, and reoperation rates. RESULTS Follow-up analysis was performed for seventy-two patients, thirty-seven randomized to the brace (experimental) group and thirty-five randomized to the control group. Regardless of the treatment method, the patients had substantial improvement in the disease-specific and general health measures by two years postoperatively. At two years, there was no difference in the DPQ category scores (the primary outcome parameter) of the two treatment groups. There was also no difference in the mean SF-36 component scores at two years. Postoperative complications occurred in 22% and 23% of patients in the experimental and control groups, respectively, and a subsequent lumbar spinal operation was performed in 19% and 14%, respectively. Seven patients (five in the experimental group and two in the control group) with radiographic evidence of nonunion underwent revision surgery. CONCLUSIONS This study does not indicate a significant advantage or disadvantage to the use of a postoperative lumbar corset following spinal arthrodesis for degenerative conditions of the lumbar spine. LEVEL OF EVIDENCE Therapeutic Level I. See Instructions to Authors for a complete description of levels of evidence.
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Affiliation(s)
- A J Yee
- The Spine Program, Division of Orthopaedic Surgery, Sunnybrook Health Sciences Centre, Department of Surgery, University of Toronto, Toronto, ON M4N 3M5, Canada.
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Robertson-Plouch C, Tohen M, Kryshanovskaya L, Carlson G, DelBello M, Wozniak J, Kowatch R, Wagner K, Findling R, Lin D, Xu W, Dittmann RW, Biederman J. Olanzapine versus placebo in adolescent mania. Pharmacopsychiatry 2007. [DOI: 10.1055/s-2007-991723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Kryzhanovskaya L, Carlson G, DelBello M, Findling R, Kowatch R, Schulz S, Robertson-Plouch C, Xu W, Sethuraman G, Carlson J, Tohen M. Changes in metabolic parameters in olanzapine-treated adolescents with schizophrenia or bipolar I disorder: A pooled analysis of 4 studies. Eur Psychiatry 2007. [DOI: 10.1016/j.eurpsy.2007.01.483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Hammock L, Cohen C, Carlson G, Murray D, Ross JS, Sheehan C, Nazir TM, Carlson JA. Chromogenic in situ hybridization analysis of melastatin mRNA expression in melanomas from American Joint Committee on Cancer stage I and II patients with recurrent melanoma. J Cutan Pathol 2006; 33:599-607. [PMID: 16965333 DOI: 10.1111/j.1600-0560.2006.00501.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
OBJECTIVE To determine whether loss of melastatin (MLSN) is a universal phenomenon in American Joint Committee on Cancer (AJCC) stage I and II melanoma patients who experienced recurrence. MATERIAL AND METHODS Paraffin blocks of primary melanomas (PMs) were retrieved from 30 patients who had a negative sentinel lymph node biopsy and developed recurrent melanoma (AJCC stage I and II). Chromogenic in situ hybridization (CISH) methods were utilized to evaluate the expression of MLSN mRNA. These results were correlated with clinicopathologic data. RESULTS Variable, heterogeneous expression of MLSN mRNA was identified in normal, in situ and invasive melanocytes within and between cases. For the invasive PM component, 24 (80%) had focal, regional or complete loss of MLSN mRNA. The remaining 20% had either regional or total partial downregulation of MLSN mRNA. Intact MLSN mRNA expression was present regionally in 14/30 (47%), with mean relative tumor area of 38%, range 5-85%. Increasing loss of MLSN mRNA significantly correlated with increasing tumor depth and microsatellites (r = 0.1/0.4, p = 0.04). However, thin, AJCC T stage 1a PM had higher relative mean loss than intermediate AJCC T stage 2a/2b/3a thickness PM (65% vs. 34%/48%/25%). Increasing loss of MLSN mRNA significantly impacted on disease free survival (DFS) by multivariate analysis (58 vs. 0% 2 years DFS, < or = 75 vs. > 75% mRNA loss, p = 0.02). Decreased overall survival significantly correlated with increasing age and vascular invasion on multivariate analysis. CONCLUSION Extensive loss of MLSN in PM correlated with aggressive metastatic melanoma. Ancillary testing for MLSN mRNA expression by CISH could offer a means to more accurately identify AJCC stage I and II patients at risk for metastatic disease, who could benefit from adjuvant therapy.
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Affiliation(s)
- L Hammock
- Johns Hopkins Hospital, Baltimore, MD, USA
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Xin J, Noetzel M, Demorest Z, Carlson G, Ashe K, Low W. Decreased proliferation of endogenous neural stem cells in transgenic tau Alzheimer's mice. Exp Neurol 2006. [DOI: 10.1016/j.expneurol.2006.02.106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Kerr LE, Birse-Archbold JLA, Simon A, Logan N, Scott F, Carlson G, Nicholson DW, Kelly JS, Sharkey J. Differential regulation of caspase-3 by pharmacological and developmental stimuli as demonstrated using humanised caspase-3 mice. Apoptosis 2005; 9:739-47. [PMID: 15505416 DOI: 10.1023/b:appt.0000045787.50848.e1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Caspase-3 is a potential therapeutic target for a number of degenerative diseases. However the development of specific caspase-3 inhibitors has been hampered by inter-species differences and the high degree of homology shared by different caspases. To circumvent these issues, we have produced and characterised a humanised caspase-3 mouse line (possessing one copy of the human gene with both copies of the murine gene disrupted) by crossing human caspase-3 transgenic mice with nullizygous caspase-3 knock-out mice. Humanised mice appeared normal and survived to adulthood. Analysis of the human gene revealed that human pro-caspase-3 was expressed in the same tissues as its murine counterpart. However humanised mice retained the hypercellularity of frontal cortex seen in their knock-out parental line and there was no biochemical evidence of human protein processing during naturally occurring neuronal death taking place during brain development. In contrast, the human protein was cleaved by the mouse machinery following anti-Fas treatment of adult mice. These data suggest that there is a fundamental difference between the activation pathways leading to caspase-3 cleavage during naturally occurring cell death in development/embryogenesis and following an apoptotic stimulus in the adult.
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Affiliation(s)
- L E Kerr
- Fujisawa Institute of Neuroscience in Edinburgh, University of Edinburgh, EH8 9JZ, UK.
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Kerr LE, McGregor AL, Amet LEA, Asada T, Spratt C, Allsopp TE, Harmar AJ, Shen S, Carlson G, Logan N, Kelly JS, Sharkey J. Mice overexpressing human caspase 3 appear phenotypically normal but exhibit increased apoptosis and larger lesion volumes in response to transient focal cerebral ischaemia. Cell Death Differ 2004; 11:1102-11. [PMID: 15153940 DOI: 10.1038/sj.cdd.4401449] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [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: 02/05/2023] Open
Abstract
Caspase 3 activation has been implicated in cell death following a number of neurodegenerative insults. To determine whether caspase genes can affect the susceptibility of cells to neurodegeneration, a transgenic mouse line was created, expressing human caspase 3 under control of its own promoter. The human gene was regulated by the murine homeostatic machinery and human procaspase 3 was expressed in the same tissues as mouse caspase 3. These novel transgenic mice appeared phenotypically and developmentally normal and survived in excess of 2 years. Behavioural assessment using the 5-choice serial reaction time task found no differences from wild-type littermates. Caspase activity was found to be tightly regulated under physiological conditions, however, significantly larger lesions were obtained when transgenic mice were subjected to focal cerebral ischaemia/reperfusion injury compared to wild-type littermates. These data demonstrate that mice overexpressing human caspase 3 are essentially normal, however, they have increased susceptibility to degenerative insults.
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Affiliation(s)
- L E Kerr
- Fujisawa Institute of Neuroscience in Edinburgh, University of Edinburgh, Edinburgh EH8 9JZ, UK.
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Soop M, Carlson G, Hopkinson J, Clarke S, Thorell A, Nygren J, Ljunqvist O. Metabolic effects of postoperative enteral nutrition in an enhanced-recovery protocol after colorectal surgery. Clin Nutr 2003. [DOI: 10.1016/s0261-5614(03)80282-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kuipers P, Foster M, Carlson G, Moy J. Classifying client goals in community-based ABI rehabilitation: a taxonomy for profiling service delivery and conceptualizing outcomes. Disabil Rehabil 2003; 25:154-62. [PMID: 12648005 DOI: 10.1080/0963828021000024898] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [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: 10/26/2022]
Abstract
PURPOSE To develop, confirm and trial a framework for analysing the content of goals set within community-based rehabilitation. This framework (taxonomy) is proposed as a tool to assist in service evaluation and outcome exploration. METHOD Qualitative thematic analysis and categorization of 1765 rehabilitation goal statements in a four phase process of synthesis, refinement, verification and application. RESULTS A taxonomy of goal content was developed comprising 21 categories within five domains, utilizing 125 descriptors. The taxonomy demonstrated good inter-rater consistency and was able to discriminate between similar but related data sets comprising goal statements. CONCLUSION Structured analysis of the content of goal setting (particularly in community rehabilitation) utilizing a framework such as the proposed taxonomy has considerable potential as a 'window' into service delivery to broaden the parameters of existing service evaluation and to more clearly link outcome exploration to intervention.
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Affiliation(s)
- P Kuipers
- Acquired Brain Injury Outreach Service and Centre of National Research on Disability and Rehabilitation Medicine, The University of Queensland, Australia.
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Dedeian K, Djurovich PI, Garces FO, Carlson G, Watts RJ. A new synthetic route to the preparation of a series of strong photoreducing agents: fac-tris-ortho-metalated complexes of iridium(III) with substituted 2-phenylpyridines. Inorg Chem 2002. [DOI: 10.1021/ic00008a003] [Citation(s) in RCA: 281] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Tewari A, Issa M, El-Galley R, Stricker H, Peabody J, Pow-Sang J, Shukla A, Wajsman Z, Rubin M, Wei J, Montie J, Demers R, Johnson CC, Lamerato L, Divine GW, Crawford ED, Gamito EJ, Farah R, Narayan P, Carlson G, Menon M. Genetic adaptive neural network to predict biochemical failure after radical prostatectomy: a multi-institutional study. Mol Urol 2002; 5:163-9. [PMID: 11790278 DOI: 10.1089/10915360152745849] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND AND PURPOSE Despite many new procedures, radical prostatectomy remains one of the commonest methods of treating clinically localized prostate cancer. Both from the physician's and the patient's point of view, it is important to have objective estimation of the likelihood of recurrence, which forms the foundation for treatment selection for an individual patient. Currently, it is difficult to predict the probability of biochemical recurrence (rising serum prostate specific antigen [PSA] concentration) in an individual patient, and approximately 30% of the patients do experience recurrence. Tools predicting the recurrence will be of immense practical utility in the treatment selection and planning follow up. We have utilized preoperative parameters through a computer based genetic adaptive neural network model to predict recurrence in such patients, which can help primary care physicians and urologists in making management recommendations. PATIENTS AND METHODS Fourteen hundred patients who underwent radical prostatectomy at participating institutions form the subjects of this study. Demographic data such as age, race, preoperative PSA, systemic biopsy based staging and Gleason scores were used to construct a neural network model. This model simulated the functioning of a trained human mind and learned from the database. Once trained, it was used to predict the outcomes in new patients. RESULTS The patients in this comprehensive database were representative of the average prostate cancer patients as seen in USA. Their mean age was 68.4 years, the mean PSA concentration before surgery was 11.6 ng/mL, and 67% patients had a Gleason sum of 5 to 7. The mean length of follow-up was 41.5 months. Eighty percent of the cancers were clinical stage T2 and 5% T3. In our series, 64% of patients had pathologically organ-confined cancer, 33% positive margins, and 14% had seminal vesicle invasion. Lymph node positive patients were not included in this series. Progression as judged by serum PSA was noted in 30.6%. With entry of a few routinely used parameters, the model could correctly predict recurrence in 76% of the patients in the validation set. The area under the curve was 0.831. The sensitivity was 85%, the specificity 74%, the positive predictive value 77%, and the negative predictive value of 83%. CONCLUSION It was possible to predict PSA recurrence with a high accuracy (76%). Physicians desiring objective treatment counseling can use this model, and significant cost savings are anticipated because of appropriate treatment selection and patient-specific follow-up protocols. This technology can be extended to other treatments such as watchful waiting, external-beam radiation, and brachytherapy.
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Affiliation(s)
- A Tewari
- Josephine Ford Cancer Center and Department of Urology, Henry Ford Medical Center, Detroit, Michigan 48202, USA.
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Carlson G. Inaccurate portrayal. Minn Med 2001; 84:6-7. [PMID: 11774626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
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Dimofte G, Alexander A, Carlson G, Little R, Irving M. TNF alpha and IL-6 involvement in surgical trauma. II. In vitro cytokine production. Rev Med Chir Soc Med Nat Iasi 2001; 105:493-8. [PMID: 12092180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
The study aimed to correlate TNF alpha and IL-6 dynamics during surgical trauma as well as the changes which appear in the circulating monocytes' response after LPS stimulation in vitro. Three patients with major abdominal operations were chosen and serial blood samples were taken before, during and after the operation. Normal unmatched individuals were used as control group during a two hours bed resting period. Both TNF alpha and IL-6 in vitro production showed similar patterns with an initial drop and almost full recovery 24 hours after the operation. We propose a model for TNF alpha and IL-6 role in trauma induced inflammation.
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Affiliation(s)
- G Dimofte
- School of Medicine, University of Medicine and Pharmacy Gr.T. Popa Iaşi
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Abstract
The critically ill patient's response to stress is to increase production of glucose; his can lead to hyperglycemia as insulin releasing factors become overloaded. Although parenteral insulin can aid in preventing complications of hyperglycemia by maintaining a euglycemic state, care must be taken to prevent hypoglycemia. The safest way to prevent large fluctuations in blood glucose levels is frequent monitoring of blood glucose levels via bedside glucose testing. As blood glucose levels fluctuate, the critical care nurse may titrate an insulin drip without specific orders for how much to increase or decrease the amount of insulin infusing. By developing a protocol, including a formula to calculate the amount of insulin to infuse, based on blood glucose levels, the critical care nurse can safely, competently, and accurately maintain blood glucose levels under 250 mg/dL.
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Affiliation(s)
- G Carlson
- Trauma/ED/Orthopedic/Neurosurgical Services, Kalamazoo, Michigan, USA
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Litcher L, Bromet E, Carlson G, Gilbert T, Panina N, Golovakha E, Goldgaber D, Gluzman S, Garber J. Ukrainian application of the Children's Somatization Inventory: psychometric properties and associations with internalizing symptoms. J Abnorm Child Psychol 2001; 29:165-75. [PMID: 11321631 DOI: 10.1023/a:1005240214564] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [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: 01/30/2023]
Abstract
This paper examines the psychometric properties of the Children's Somatization Inventory (CSI) in 600 10-12-year old children in Kyiv, Ukraine, replicating and extending the original findings from a sample in Nashville, Tennessee (J. Garber et al. 1991). The Kyiv children had significantly lower CSI total scores and reported significantly fewer symptoms than the American children. The Kyiv mothers, however, reported significantly more somatization symptoms in their children than did the American mothers. A factor analysis of the children's data yielded four similar factors encompassing pseudoneurologic, cardiovascular, gastrointestinal, and pain/weakness symptoms. Consistent with the findings from the Nashville study, the CSI was significantly related to the children's self-reports of health and depressive and anxiety symptoms and to maternal reports of child depression and anxiety symptoms. In addition, although more children with the highest CSI scores (25+) reported various illness experiences than those with 0-1 symptoms, no differences were found in the school absentee records. Thus, the results were congruent with the findings of the Nashville study, indicating that the CSI reliably measured somatization in this Ukrainian sample.
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Affiliation(s)
- L Litcher
- Department of Psychiatry and Behavioral Science, State University of New York at Stony Brook, 11794-8790, USA
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Nadeau JH, Balling R, Barsh G, Beier D, Brown SD, Bucan M, Camper S, Carlson G, Copeland N, Eppig J, Fletcher C, Frankel WN, Ganten D, Goldowitz D, Goodnow C, Guenet JL, Hicks G, Hrabe de Angelis M, Jackson I, Jacob HJ, Jenkins N, Johnson D, Justice M, Kay S, Kingsley D, Lehrach H, Magnuson T, Meisler M, Poustka A, Rinchik EM, Rossant J, Russell LB, Schimenti J, Shiroishi T, Skarnes WC, Soriano P, Stanford W, Takahashi JS, Wurst W, Zimmer A. Sequence interpretation. Functional annotation of mouse genome sequences. Science 2001; 291:1251-5. [PMID: 11233449 DOI: 10.1126/science.1058244] [Citation(s) in RCA: 106] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- J H Nadeau
- Department of Genetics, BRB 624, Case Western Reserve University School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106, USA.
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Carlson G. Part 2. Nutritional support of the surgical patient: is it worthwhile? Adult patients. Proc Nutr Soc 2000; 59:477-9. [PMID: 10997677] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Affiliation(s)
- G Carlson
- Intestinal Failure Unit, Hope Hospital, Salford, UK.
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Auricchio A, Carlson G, Kadhiresan V, Huvelle E, Spinelli J, Michel U. Prognosis of heart failure patients with ventricular resynchronization therapy based on autonomic function assessment. Eur J Heart Fail 2000. [DOI: 10.1016/s1388-9842(00)80131-2] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Affiliation(s)
- A. Auricchio
- Department of Cardiology; University Hospital; Magdeburg Germany
| | - G. Carlson
- CHF Research, Guidant Corporation; St. Paul MN United States
| | - V. Kadhiresan
- CHF Research, Guidant Corporation; St. Paul MN United States
| | - E. Huvelle
- CHF Research, Guidant Corporation; Brussels Belgium
| | - J. Spinelli
- CHF Research, Guidant Corporation; St. Paul MN United States
| | - U. Michel
- CHF Research, Guidant Corporation; Zaventem Belgium
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