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Greenspon CM, Valle G, Hobbs TG, Verbaarschot C, Callier T, Okorokova EV, Shelchkova ND, Sobinov AR, Jordan PM, Weiss JM, Fitzgerald EE, Prasad D, van Driesche A, Lee RC, Satzer D, Gonzalez-Martinez J, Warnke PC, Miller LE, Boninger ML, Collinger JL, Gaunt RA, Downey JE, Hatsopoulos NG, Bensmaia SJ. Biomimetic multi-channel microstimulation of somatosensory cortex conveys high resolution force feedback for bionic hands. bioRxiv 2023:2023.02.18.528972. [PMID: 36824713 PMCID: PMC9949113 DOI: 10.1101/2023.02.18.528972] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
Manual interactions with objects are supported by tactile signals from the hand. This tactile feedback can be restored in brain-controlled bionic hands via intracortical microstimulation (ICMS) of somatosensory cortex (S1). In ICMS-based tactile feedback, contact force can be signaled by modulating the stimulation intensity based on the output of force sensors on the bionic hand, which in turn modulates the perceived magnitude of the sensation. In the present study, we gauged the dynamic range and precision of ICMS-based force feedback in three human participants implanted with arrays of microelectrodes in S1. To this end, we measured the increases in sensation magnitude resulting from increases in ICMS amplitude and participant's ability to distinguish between different intensity levels. We then assessed whether we could improve the fidelity of this feedback by implementing "biomimetic" ICMS-trains, designed to evoke patterns of neuronal activity that more closely mimic those in natural touch, and by delivering ICMS through multiple channels at once. We found that multi-channel biomimetic ICMS gives rise to stronger and more distinguishable sensations than does its single-channel counterpart. Finally, we implemented biomimetic multi-channel feedback in a bionic hand and had the participant perform a compliance discrimination task. We found that biomimetic multi-channel tactile feedback yielded improved discrimination over its single-channel linear counterpart. We conclude that multi-channel biomimetic ICMS conveys finely graded force feedback that more closely approximates the sensitivity conferred by natural touch.
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Affiliation(s)
- Charles M. Greenspon
- Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL
| | - Giacomo Valle
- Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL
| | - Taylor G. Hobbs
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA
| | - Ceci Verbaarschot
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA
| | - Thierri Callier
- Committee on Computational Neuroscience, University of Chicago, Chicago, IL
| | | | | | - Anton R. Sobinov
- Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL
| | - Patrick M. Jordan
- Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL
| | - Jeffrey M. Weiss
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA
| | - Emily E. Fitzgerald
- Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL
| | - Dillan Prasad
- Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL
| | - Ashley van Driesche
- Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL
| | - Ray C. Lee
- Schwab Rehabilitation Hospital, Chicago, IL
| | - David Satzer
- Department of Neurological Surgery, University of Chicago, Chicago, IL
| | | | - Peter C. Warnke
- Department of Neurological Surgery, University of Chicago, Chicago, IL
| | - Lee E. Miller
- Department of Neuroscience, Northwestern University, Chicago, IL
- Department of Biomedical Engineering, Northwestern University, Evanston, IL
- Department of Physical Medicine and Rehabilitation, Northwestern University, Chicago, IL
- Shirley Ryan Ability Lab, Chicago, IL
| | - Michael L. Boninger
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA
| | - Jennifer L. Collinger
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA
| | - Robert A. Gaunt
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA
| | - John E. Downey
- Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL
| | - Nicholas G. Hatsopoulos
- Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL
- Committee on Computational Neuroscience, University of Chicago, Chicago, IL
- Neuroscience Institute, University of Chicago, Chicago, IL
| | - Sliman J. Bensmaia
- Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL
- Committee on Computational Neuroscience, University of Chicago, Chicago, IL
- Neuroscience Institute, University of Chicago, Chicago, IL
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Esterhuizen AI, Tiffin N, Riordan G, Wessels M, Burman RJ, Aziz MC, Calhoun JD, Gunti J, Amiri EE, Ramamurthy A, Bamshad MJ, Mefford HC, Ramesar R, Wilmshurst JM, Carvill GL, Leal SM, Nickerson DA, Anderson P, Bacus TJ, Blue EE, Brower K, Buckingham KJ, Chong JX, Cornejo Sánchez D, Davis CP, Davis CJ, Frazar CD, Gomeztagle-Burgess K, Gordon WW, Horike-Pyne M, Hurless JR, Jarvik GP, Johanson E, Thomas Kolar J, Marvin CT, McGee S, McGoldrick DJ, Mekonnen B, Nielsen PM, Patterson K, Radhakrishnan A, Richardson MA, Roote GT, Ryke EL, Schrauwen I, Shively KM, Smith JD, Tackett M, Wang G, Weiss JM, Wheeler MM, Yi Q, Zhang X. Precision medicine for developmental and epileptic encephalopathies in Africa-strategies for a resource-limited setting. Genet Med 2023; 25:100333. [PMID: 36480001 DOI: 10.1016/j.gim.2022.11.002] [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] [Received: 07/20/2022] [Revised: 10/31/2022] [Accepted: 11/01/2022] [Indexed: 12/13/2022] Open
Abstract
PURPOSE Sub-Saharan Africa bears the highest burden of epilepsy worldwide. A presumed proportion is genetic, but this etiology is buried under the burden of infections and perinatal insults in a setting of limited awareness and few options for testing. Children with developmental and epileptic encephalopathies (DEEs) are most severely affected by this diagnostic gap in Africa, because the rate of actionable findings is highest in DEE-associated genes. METHODS We tested 234 genetically naive South African children diagnosed with/possible DEE using gene panels, exome sequencing, and chromosomal microarray. Statistical comparison of electroclinical features in children with and children without candidate variants was performed to identify characteristics most likely predictive of a positive genetic finding. RESULTS Of the 41 (of 234) children with likely/pathogenic variants, 26 had variants supporting precision therapy. Multivariate regression modeling highlighted neonatal or infantile-onset seizures and movement abnormalities as predictive of a positive genetic finding. We used this, coupled with an emphasis on precision medicine outcomes, to propose the pragmatic "Think-Genetics" strategy for early recognition of a possible genetic etiology. CONCLUSION Our findings emphasize the importance of an early genetic diagnosis in DEE. We designed the Think-Genetics strategy for early recognition, appropriate interim management, and genetic testing for DEE in resource-constrained settings.
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Affiliation(s)
- Alina I Esterhuizen
- The South African MRC/UCT Genomic and Precision Medicine Research Unit, Division of Human Genetics, Institute of Infectious Diseases and Molecular Medicine, Department of Pathology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa; National Health Laboratory Service, Groote Schuur Hospital, Cape Town, South Africa
| | - Nicki Tiffin
- South African National Bioinformatics Institute, University of the Western Cape, Bellville, Western Cape, South Africa
| | - Gillian Riordan
- Department of Paediatric Neurology, Red Cross War Memorial Children's Hospital, Neuroscience Institute, University of Cape Town, Cape Town, South Africa
| | - Marie Wessels
- Department of Paediatric Neurology, Red Cross War Memorial Children's Hospital, Neuroscience Institute, University of Cape Town, Cape Town, South Africa
| | - Richard J Burman
- Division of Clinical Neurology, Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom
| | - Miriam C Aziz
- Ken and Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - Jeffrey D Calhoun
- Ken and Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - Jonathan Gunti
- Ken and Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - Ezra E Amiri
- Ken and Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - Aishwarya Ramamurthy
- Ken and Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - Michael J Bamshad
- Department of Pediatrics, University of Washington, Seattle, WA; Department of Genome Sciences, University of Washington, Seattle, WA; Brotman Baty Institute, Seattle, WA
| | | | - Heather C Mefford
- Centre for Pediatric Neurological Disease Research, St. Jude Children's Research Hospital, Memphis, TN
| | - Raj Ramesar
- The South African MRC/UCT Genomic and Precision Medicine Research Unit, Division of Human Genetics, Institute of Infectious Diseases and Molecular Medicine, Department of Pathology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa; National Health Laboratory Service, Groote Schuur Hospital, Cape Town, South Africa
| | - Jo M Wilmshurst
- Department of Paediatric Neurology, Red Cross War Memorial Children's Hospital, Neuroscience Institute, University of Cape Town, Cape Town, South Africa.
| | - Gemma L Carvill
- Ken and Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Northwestern University, Chicago, IL; Department of Pharmacology, Northwestern University Feinberg School of Medicine, Northwestern University, Chicago, IL; Department of Pediatrics, Northwestern University Feinberg School of Medicine, Northwestern University, Chicago, IL.
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Yigit BI, Fernandez-Orth J, Weiss JM, Molnar C, Andrieux G, Gonzalez-Mendez I, Börries M, Niemeyer CM, Teichert-von Lüttichau I, Erlacher M. Identification of functional defects promoting leukemogenesis in
GATA2-deficient individuals. KLINISCHE PADIATRIE 2022. [DOI: 10.1055/s-0042-1748716] [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] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- BI Yigit
- University Medical Center Freiburg, Center for Pediatrics, Department
of Pediatric Hematology and Oncology, Freiburg, Germany
- Kinderklinik Muenchen Schwabing, Department of Pediatrics and
Children's Cancer Research Center, TUM School of Medicine, Technical
University of Munich, Munich, Germany
| | - J Fernandez-Orth
- University Medical Center Freiburg, Center for Pediatrics, Department
of Pediatric Hematology and Oncology, Freiburg, Germany
| | - JM Weiss
- University Medical Center Freiburg, Center for Pediatrics, Department
of Pediatric Hematology and Oncology, Freiburg, Germany
| | - C Molnar
- University Medical Center Freiburg, Center for Pediatrics, Department
of Pediatric Hematology and Oncology, Freiburg, Germany
| | - G Andrieux
- University Medical Center Freiburg, Institute of Medical Bioinformatics
und Systems Medicine IBSM, Freiburg, Germany
| | - I Gonzalez-Mendez
- University of Tübingen, Institute of Pathology and
Neuropathology, Tübingen, Germany
| | - M Börries
- University Medical Center Freiburg, Institute of Medical Bioinformatics
und Systems Medicine IBSM, Freiburg, Germany
| | - CM Niemeyer
- University Medical Center Freiburg, Center for Pediatrics, Department
of Pediatric Hematology and Oncology, Freiburg, Germany
| | - I Teichert-von Lüttichau
- Kinderklinik Muenchen Schwabing, Department of Pediatrics and
Children's Cancer Research Center, TUM School of Medicine, Technical
University of Munich, Munich, Germany
| | - M Erlacher
- University Medical Center Freiburg, Center for Pediatrics, Department
of Pediatric Hematology and Oncology, Freiburg, Germany
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Hagenbourger F, Fernandez-Orth J, Bohler S, Weiss JM, Andrieux G, Börries M, Niemeyer CM, Erlacher M. Characterization of cooperating mechanisms in GATA2
syndrome. KLINISCHE PADIATRIE 2022. [DOI: 10.1055/s-0042-1748717] [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] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- F Hagenbourger
- University Medical Center Freiburg, Center for Pediatrics and
Adolescent Medicine, Department of Pediatric Hematology and Oncology, Freiburg,
Germany
- MOTI-VATE Graduate School, Faculty of Medicine, University of Freiburg,
Freiburg, Germany
| | - J Fernandez-Orth
- University Medical Center Freiburg, Center for Pediatrics and
Adolescent Medicine, Department of Pediatric Hematology and Oncology, Freiburg,
Germany
| | - S Bohler
- University Medical Center Freiburg, Center for Pediatrics and
Adolescent Medicine, Department of Pediatric Hematology and Oncology, Freiburg,
Germany
| | - JM Weiss
- University Medical Center Freiburg, Center for Pediatrics and
Adolescent Medicine, Department of Pediatric Hematology and Oncology, Freiburg,
Germany
| | - G Andrieux
- University Medical Center Freiburg, Institute of Medical Bioinformatics
und Systems Medicine IBSM, Freiburg, Germany
| | - M Börries
- University Medical Center Freiburg, Institute of Medical Bioinformatics
und Systems Medicine IBSM, Freiburg, Germany
| | - CM Niemeyer
- University Medical Center Freiburg, Center for Pediatrics and
Adolescent Medicine, Department of Pediatric Hematology and Oncology, Freiburg,
Germany
| | - M Erlacher
- University Medical Center Freiburg, Center for Pediatrics and
Adolescent Medicine, Department of Pediatric Hematology and Oncology, Freiburg,
Germany
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Dekleva BM, Weiss JM, Boninger ML, Collinger JL. Generalizable cursor click decoding using grasp-related neural transients. J Neural Eng 2021; 18. [PMID: 34289456 DOI: 10.1088/1741-2552/ac16b2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 07/21/2021] [Indexed: 11/11/2022]
Abstract
Objective.Intracortical brain-computer interfaces (iBCI) have the potential to restore independence for individuals with significant motor or communication impairments. One of the most realistic avenues for clinical translation of iBCI technology is enabling control of a computer cursor-i.e. movement-related neural activity is interpreted (decoded) and used to drive cursor function. Here we aim to improve cursor click decoding to allow for both point-and-click and click-and-drag control.Approach.Using chronic microelectrode arrays implanted in the motor cortex of two participants with tetraplegia, we identified prominent neural responses related to attempted hand grasp. We then developed a new approach for decoding cursor click (hand grasp) based on the most salient responses.Main results.We found that the population-wide response contained three dominant components related to hand grasp: an onset transient response, a sustained response, and an offset transient response. The transient responses were larger in magnitude-and thus more reliably detected-than the sustained response, and a click decoder based on these transients outperformed the standard approach of binary state classification.Significance.A transient-based approach for identifying hand grasp can provide a high degree of cursor click control for both point-and-click and click-and-drag applications. This generalized click functionality is an important step toward high-performance cursor control and eventual clinical translation of iBCI technology.
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Affiliation(s)
- Brian M Dekleva
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA, United States of America.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, United States of America.,Center for the Neural Basis of Cognition, Pittsburgh, PA, United States of America
| | - Jeffrey M Weiss
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA, United States of America
| | - Michael L Boninger
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA, United States of America.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, United States of America.,Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States of America.,Department of Veterans Affairs, Human Engineering Research Labs, VA Center of Excellence, Pittsburgh, PA, United States of America
| | - Jennifer L Collinger
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA, United States of America.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, United States of America.,Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States of America.,Center for the Neural Basis of Cognition, Pittsburgh, PA, United States of America.,Department of Veterans Affairs, Human Engineering Research Labs, VA Center of Excellence, Pittsburgh, PA, United States of America.,Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, United States of America
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Hughes CL, Flesher SN, Weiss JM, Downey JE, Boninger M, Collinger JL, Gaunt RA. Neural stimulation and recording performance in human sensorimotor cortex over 1500 days. J Neural Eng 2021; 18. [PMID: 34320481 DOI: 10.1088/1741-2552/ac18ad] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 07/28/2021] [Indexed: 01/12/2023]
Abstract
Objective.Intracortical microstimulation (ICMS) in somatosensory cortex can restore sensation to people with spinal cord injury. However, the recording quality from implanted microelectrodes can degrade over time and limitations in stimulation longevity have been considered a potential barrier to the clinical use of ICMS. Our objective was to evaluate recording stability of intracortical electrodes implanted in the motor and somatosensory cortex of one person. The electrodes in motor cortex had platinum tips and were not stimulated, while the electrodes in somatosensory cortex had sputtered iridium oxide film (SIROF) tips and were stimulated. Additionally, we measured how well ICMS was able to evoke sensations over time.Approach. We implanted microelectrode arrays with SIROF tips in the somatosensory cortex (SIROF-sensory) of a human participant with a cervical spinal cord injury. We regularly stimulated these electrodes to evoke tactile sensations on the hand. Here, we quantify the stability of these electrodes in comparison to non-stimulated platinum electrodes implanted in the motor cortex (platinum-motor) over 1500 days with recorded signal quality and electrode impedances. Additionally, we quantify the stability of ICMS-evoked sensations using detection thresholds.Main results. We found that recording quality, as assessed by the number of electrodes with high-amplitude waveforms (>100µV peak-to-peak), peak-to-peak voltage, noise, and signal-to-noise ratio, decreased over time on SIROF-sensory and platinum-motor electrodes. However, SIROF-sensory electrodes were more likely to continue to record high-amplitude signals than platinum-motor electrodes. Interestingly, the detection thresholds for stimulus-evoked sensations decreased over time from a median of 31.5μA at day 100-10.4μA at day 1500, with the largest changes occurring between day 100 and 500.Significance. These results demonstrate that ICMS in human somatosensory cortex can be provided over long periods of time without deleterious effects on recording or stimulation capabilities. In fact, the sensitivity to stimulation improved over time.
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Affiliation(s)
- Christopher L Hughes
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States of America
| | - Sharlene N Flesher
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States of America
| | - Jeffrey M Weiss
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, United States of America
| | - John E Downey
- Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL, United States of America
| | - Michael Boninger
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, United States of America
| | - Jennifer L Collinger
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States of America.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, United States of America
| | - Robert A Gaunt
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States of America.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, United States of America
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Hughes CL, Flesher SN, Weiss JM, Boninger M, Collinger JL, Gaunt RA. Perception of microstimulation frequency in human somatosensory cortex. eLife 2021; 10:65128. [PMID: 34313221 PMCID: PMC8376245 DOI: 10.7554/elife.65128] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 07/22/2021] [Indexed: 12/11/2022] Open
Abstract
Microstimulation in the somatosensory cortex can evoke artificial tactile percepts and can be incorporated into bidirectional brain–computer interfaces (BCIs) to restore function after injury or disease. However, little is known about how stimulation parameters themselves affect perception. Here, we stimulated through microelectrode arrays implanted in the somatosensory cortex of two human participants with cervical spinal cord injury and varied the stimulus amplitude, frequency, and train duration. Increasing the amplitude and train duration increased the perceived intensity on all tested electrodes. Surprisingly, we found that increasing the frequency evoked more intense percepts on some electrodes but evoked less-intense percepts on other electrodes. These different frequency–intensity relationships were divided into three groups, which also evoked distinct percept qualities at different stimulus frequencies. Neighboring electrode sites were more likely to belong to the same group. These results support the idea that stimulation frequency directly controls tactile perception and that these different percepts may be related to the organization of somatosensory cortex, which will facilitate principled development of stimulation strategies for bidirectional BCIs.
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Affiliation(s)
- Christopher L Hughes
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, United States.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, United States.,Center for the Neural Basis of Cognition, University of Pittsburgh, Pittsburgh, United States
| | - Sharlene N Flesher
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, United States.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, United States.,Center for the Neural Basis of Cognition, University of Pittsburgh, Pittsburgh, United States.,Department of Neurosurgery, Stanford University, Stanford, United States.,Department of Electrical Engineering, Stanford University, Stanford, United States
| | - Jeffrey M Weiss
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, United States.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, United States
| | - Michael Boninger
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, United States.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, United States.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, United States.,Human Engineering Research Laboratories, VA Center of Excellence, Department of Veterans Affairs, Pittsburgh, United States
| | - Jennifer L Collinger
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, United States.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, United States.,Center for the Neural Basis of Cognition, University of Pittsburgh, Pittsburgh, United States.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, United States.,Human Engineering Research Laboratories, VA Center of Excellence, Department of Veterans Affairs, Pittsburgh, United States
| | - Robert A Gaunt
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, United States.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, United States.,Center for the Neural Basis of Cognition, University of Pittsburgh, Pittsburgh, United States.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, United States
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Flesher SN, Downey JE, Weiss JM, Hughes CL, Herrera AJ, Tyler-Kabara EC, Boninger ML, Collinger JL, Gaunt RA. A brain-computer interface that evokes tactile sensations improves robotic arm control. Science 2021; 372:831-836. [PMID: 34016775 DOI: 10.1126/science.abd0380] [Citation(s) in RCA: 138] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 03/25/2021] [Indexed: 12/14/2022]
Abstract
Prosthetic arms controlled by a brain-computer interface can enable people with tetraplegia to perform functional movements. However, vision provides limited feedback because information about grasping objects is best relayed through tactile feedback. We supplemented vision with tactile percepts evoked using a bidirectional brain-computer interface that records neural activity from the motor cortex and generates tactile sensations through intracortical microstimulation of the somatosensory cortex. This enabled a person with tetraplegia to substantially improve performance with a robotic limb; trial times on a clinical upper-limb assessment were reduced by half, from a median time of 20.9 to 10.2 seconds. Faster times were primarily due to less time spent attempting to grasp objects, revealing that mimicking known biological control principles results in task performance that is closer to able-bodied human abilities.
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Affiliation(s)
- Sharlene N Flesher
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.,Center for the Neural Basis of Cognition, Pittsburgh, PA, USA
| | - John E Downey
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.,Center for the Neural Basis of Cognition, Pittsburgh, PA, USA.,Department of Organismal Biology, University of Chicago, Chicago, IL, USA
| | - Jeffrey M Weiss
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, USA
| | - Christopher L Hughes
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.,Center for the Neural Basis of Cognition, Pittsburgh, PA, USA
| | - Angelica J Herrera
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.,Center for the Neural Basis of Cognition, Pittsburgh, PA, USA
| | | | - Michael L Boninger
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, USA.,McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA.,VA Center of Excellence, Department of Veterans Affairs, Pittsburgh, PA, USA
| | - Jennifer L Collinger
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA, USA. .,Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.,Center for the Neural Basis of Cognition, Pittsburgh, PA, USA.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, USA.,VA Center of Excellence, Department of Veterans Affairs, Pittsburgh, PA, USA
| | - Robert A Gaunt
- Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA, USA. .,Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.,Center for the Neural Basis of Cognition, Pittsburgh, PA, USA.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, USA
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Felsen UR, Tlamsa A, Moir L, Shukla S, Thompson D, Weiss JM, Heo M, Litwin AH. Comparing Routine HIV and Hepatitis C Virus Screening to Estimate the Effect of Required Consent on HIV Screening Rates Among Hospitalized Patients. Public Health Rep 2021; 137:102-109. [PMID: 33673778 PMCID: PMC8721757 DOI: 10.1177/0033354921999170] [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: 02/03/2023] Open
Abstract
OBJECTIVES Routine screening for HIV and hepatitis C virus (HCV) among specified age cohorts is recommended. New York State requires consent before screening for HIV but not HCV. We sought to estimate the effect of the consent requirement on screening rates for HIV. METHODS We performed a retrospective study of patients hospitalized in 2015-2016 at a tertiary care hospital in the Bronx, New York, during a period when prompts in the electronic health record facilitated screening for HIV and HCV among specified age cohorts. We compared proportions of patients eligible for screening for HIV and/or HCV who underwent screening and used generalized estimating equations and a meta-analytic weighted average to estimate an adjusted risk difference between undergoing HIV screening and undergoing HCV screening. RESULTS Among 11 938 hospitalized patients eligible for HIV and/or HCV screening, 38.5% underwent screening for HIV and 59.1% underwent screening for HCV. The difference in screening rates persisted after adjusting for patient and admission characteristics (adjusted risk difference = 22.0%; 95% CI, 20.6%-23.4%). CONCLUSIONS Whereas the requirement for consent was the only difference in the processes of screening for HIV compared with screening for HCV, differences in how the 2 viruses are perceived may also have contributed to the difference in screening rates. Nevertheless, our findings suggest that requiring consent continues to impede progress toward the public health goal of routine HIV screening.
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Affiliation(s)
- Uriel R. Felsen
- Department of Medicine, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, NY, USA,Uriel R. Felsen, MD, MPH, MS, Albert Einstein College of Medicine and Montefiore Medical Center, Department of Medicine, 111 E 210th St, Bronx, NY 10467, USA.
| | - Aileen Tlamsa
- Department of Medicine, Englewood Hospital and Medical Center, Englewood, NJ, USA
| | - Lorlette Moir
- Division of Public Health Services, New Hampshire Department of Health and Human Services, Concord, NH, USA
| | - Shuchin Shukla
- Department of Family Medicine, University of North Carolina School of Medicine, Chapel Hill, NC, USA,Department of Family Medicine, Mountain Area Health Education Center, Asheville, NC, USA
| | - Devin Thompson
- Department of Medicine, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, NY, USA
| | - Jeffrey M. Weiss
- Department of Medicine, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, NY, USA
| | - Moonseong Heo
- Department of Public Health Sciences, Clemson University, Clemson, SC, USA
| | - Alain H. Litwin
- Department of Medicine, University of South Carolina School of Medicine, Greenville, SC, USA,Clemson University School of Health Research, Clemson, SC, USA,Prisma Health, Greenville, SC, USA
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10
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Quick KM, Weiss JM, Clemente F, Gaunt RA, Collinger JL. Intracortical Microstimulation Feedback Improves Grasp Force Accuracy in a Human Using a Brain-Computer Interface .. Annu Int Conf IEEE Eng Med Biol Soc 2020; 2020:3355-3358. [PMID: 33018723 DOI: 10.1109/embc44109.2020.9175926] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
After a spinal cord injury, a person may grasp objects using a brain-computer interface (BCI) to control a robot arm. However, most BCIs do not restore somatosensory percepts that would enable someone to sense grasp force. Intracortical microstimulation (ICMS) in the somatosensory cortex can evoke tactile sensations and may therefore offer a viable solution to provide grasp force feedback. We investigated whether a bidirectional BCI could improve grasp force control over a BCI using only visual feedback. When evaluating the error of the applied force during a force matching task, we found that ICMS feedback improved overall applied grasp force accuracy.
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11
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Torabi J, Rocca JP, Ajaimy M, Melvin J, Campbell A, Akalin E, Liriano LE, Azzi Y, Pynadath C, Greenstein SM, Le M, Goldstein DY, Fox AS, Carrero J, Weiss JM, Powell T, Racine AD, Reinus JF, Kinkhabwala MM, Graham JA. Commercial insurance delays direct-acting antiviral treatment for hepatitis C kidney transplantation into uninfected recipients. Transpl Infect Dis 2020; 23:e13449. [PMID: 32810315 DOI: 10.1111/tid.13449] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 07/28/2020] [Accepted: 08/11/2020] [Indexed: 12/14/2022]
Abstract
INTRODUCTION The advent of direct-acting antivirals (DAAs) has created an avenue for transplantation of hepatitis C virus (HCV)-infected donors into uninfected recipients (D+/R-). The donor transmission of HCV is then countered by DAA administration during the post-operative period. However, initiation of DAA treatment is ultimately dictated by insurance companies. METHODS A retrospective chart review of 52 D+/R- kidney recipients who underwent DAA treatment post-transplant was performed. Patients were grouped according to their prescription coverage plans, managed by either commercial or government pharmacy benefit managers (PBMs). RESULTS Thirty-nine patients had government PBMs and 13 had commercial PBMs. Demographics were similar between the two groups. All patients developed HCV viremia, but cleared the virus after treatment with DAA. Patients with government PBMs were treated earlier compared to those with commercial PBMs (11 days vs 26 days, P = .01). Longer time to DAA initiation resulted in higher peak viral loads (β = 0.39, R2 = .15, P = .01) and longer time to HCV viral load clearance (β = 0.41, R2 = .17, P = .01). CONCLUSIONS D+/R- transplantation offers patients an alternative strategy to increase access. However, treatment can be profoundly delayed by a third-party payer authorization process that may be subjecting patients to unnecessary risks and worsened outcomes.
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Affiliation(s)
- Julia Torabi
- Albert Einstein College of Medicine, Bronx, NY, USA
| | - Juan P Rocca
- Albert Einstein College of Medicine, Bronx, NY, USA.,Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, NY, USA
| | - Maria Ajaimy
- Albert Einstein College of Medicine, Bronx, NY, USA.,Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, NY, USA
| | | | - Alesa Campbell
- Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, NY, USA
| | - Enver Akalin
- Albert Einstein College of Medicine, Bronx, NY, USA.,Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, NY, USA
| | - Luz E Liriano
- Albert Einstein College of Medicine, Bronx, NY, USA.,Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, NY, USA
| | - Yorg Azzi
- Albert Einstein College of Medicine, Bronx, NY, USA.,Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, NY, USA
| | - Cindy Pynadath
- Albert Einstein College of Medicine, Bronx, NY, USA.,Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, NY, USA
| | - Stuart M Greenstein
- Albert Einstein College of Medicine, Bronx, NY, USA.,Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, NY, USA
| | - Marie Le
- Albert Einstein College of Medicine, Bronx, NY, USA.,Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, NY, USA
| | - Doctor Y Goldstein
- Albert Einstein College of Medicine, Bronx, NY, USA.,Department of Pathology, Montefiore Medical Center, Bronx, NY, USA
| | - Amy S Fox
- Albert Einstein College of Medicine, Bronx, NY, USA.,Department of Pathology, Montefiore Medical Center, Bronx, NY, USA
| | - Jin Carrero
- Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, NY, USA
| | - Jeffrey M Weiss
- Albert Einstein College of Medicine, Bronx, NY, USA.,Department of Medicine, Montefiore Medical Center, Bronx, NY, USA
| | - Tia Powell
- Albert Einstein College of Medicine, Bronx, NY, USA.,Montefiore-Einstein Center for Bioethics, Montefiore Medical Center, Bronx, NY, USA
| | - Andrew D Racine
- Albert Einstein College of Medicine, Bronx, NY, USA.,Department of Pediatrics, Montefiore Medical Center, Bronx, NY, USA
| | - John F Reinus
- Albert Einstein College of Medicine, Bronx, NY, USA.,Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, NY, USA
| | - Milan M Kinkhabwala
- Albert Einstein College of Medicine, Bronx, NY, USA.,Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, NY, USA
| | - Jay A Graham
- Albert Einstein College of Medicine, Bronx, NY, USA.,Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, NY, USA
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12
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Downey JE, Quick KM, Schwed N, Weiss JM, Wittenberg GF, Boninger ML, Collinger JL. The Motor Cortex Has Independent Representations for Ipsilateral and Contralateral Arm Movements But Correlated Representations for Grasping. Cereb Cortex 2020; 30:5400-5409. [PMID: 32494819 DOI: 10.1093/cercor/bhaa120] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 03/25/2020] [Accepted: 04/15/2020] [Indexed: 11/14/2022] Open
Abstract
Motor commands for the arm and hand generally arise from the contralateral motor cortex, where most of the relevant corticospinal tract originates. However, the ipsilateral motor cortex shows activity related to arm movement despite the lack of direct connections. The extent to which the activity related to ipsilateral movement is independent from that related to contralateral movement is unclear based on conflicting conclusions in prior work. Here we investigate bilateral arm and hand movement tasks completed by two human subjects with intracortical microelectrode arrays implanted in the left hand and arm area of the motor cortex. Neural activity was recorded while they attempted to perform arm and hand movements in a virtual environment. This enabled us to quantify the strength and independence of motor cortical activity related to continuous movements of each arm. We also investigated the subjects' ability to control both arms through a brain-computer interface. Through a number of experiments, we found that ipsilateral arm movement was represented independently of, but more weakly than, contralateral arm movement. However, the representation of grasping was correlated between the two hands. This difference between hand and arm representation was unexpected and poses new questions about the different ways the motor cortex controls the hands and arms.
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Affiliation(s)
- John E Downey
- Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL 60637, United States.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, United States.,Center for the Neural Basis of Cognition, Pittsburgh, PA 1523, United States.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA 15213, United States
| | - Kristin M Quick
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA 15213, United States
| | - Nathaniel Schwed
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, United States
| | - Jeffrey M Weiss
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA 15213, United States
| | - George F Wittenberg
- VA Pittsburgh Healthcare System, Pittsburgh, PA 15206, United States.,Department of Neurology, University of Pittsburgh, Pittsburgh, PA 15213, United States
| | - Michael L Boninger
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, United States.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA 15213, United States.,VA Pittsburgh Healthcare System, Pittsburgh, PA 15206, United States
| | - Jennifer L Collinger
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, United States.,Center for the Neural Basis of Cognition, Pittsburgh, PA 1523, United States.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA 15213, United States.,VA Pittsburgh Healthcare System, Pittsburgh, PA 15206, United States
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13
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Affiliation(s)
- Jeffrey M. Weiss
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, USA
| | - Robert A. Gaunt
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA
- Center for the Neural Basis of Cognition, Pittsburgh, PA, USA
| | | | - Michael L. Boninger
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA
- Center for the Neural Basis of Cognition, Pittsburgh, PA, USA
- Department of Veterans Affairs, Pittsburgh, PA, USA
| | - Jennifer L. Collinger
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA
- Center for the Neural Basis of Cognition, Pittsburgh, PA, USA
- Department of Veterans Affairs, Pittsburgh, PA, USA
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14
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Weiss JM. Osteopontin regulatory functions in the hair follicle open a therapeutic approach for hypertrichosis. Br J Dermatol 2019; 182:1324-1325. [PMID: 31774146 DOI: 10.1111/bjd.18637] [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: 11/28/2022]
Affiliation(s)
- J M Weiss
- Department of Dermatology and Allergy, University of Ulm, Albert-Einstein-Allee 23, D-89081, Ulm, Germany
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15
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Barrenas F, Raehtz K, Xu C, Law L, Green RR, Silvestri G, Bosinger SE, Nishida A, Li Q, Lu W, Zhang J, Thomas MJ, Chang J, Smith E, Weiss JM, Dawoud RA, Richter GH, Trichel A, Ma D, Peng X, Komorowski J, Apetrei C, Pandrea I, Gale M. Macrophage-associated wound healing contributes to African green monkey SIV pathogenesis control. Nat Commun 2019; 10:5101. [PMID: 31704931 PMCID: PMC6841668 DOI: 10.1038/s41467-019-12987-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 08/22/2018] [Accepted: 10/08/2019] [Indexed: 01/13/2023] Open
Abstract
Natural hosts of simian immunodeficiency virus (SIV) avoid AIDS despite lifelong infection. Here, we examined how this outcome is achieved by comparing a natural SIV host, African green monkey (AGM) to an AIDS susceptible species, rhesus macaque (RM). To asses gene expression profiles from acutely SIV infected AGMs and RMs, we developed a systems biology approach termed Conserved Gene Signature Analysis (CGSA), which compared RNA sequencing data from rectal AGM and RM tissues to various other species. We found that AGMs rapidly activate, and then maintain, evolutionarily conserved regenerative wound healing mechanisms in mucosal tissue. The wound healing protein fibronectin shows distinct tissue distribution and abundance kinetics in AGMs. Furthermore, AGM monocytes exhibit an embryonic development and repair/regeneration signature featuring TGF-β and concomitant reduced expression of inflammatory genes compared to RMs. This regenerative wound healing process likely preserves mucosal integrity and prevents inflammatory insults that underlie immune exhaustion in RMs.
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Affiliation(s)
- Fredrik Barrenas
- Department of Microbiology, University of Washington, Seattle, WA, USA
- Department of Cell and Molecular Biology, Uppsala University, Uppsala, Sweden
| | - Kevin Raehtz
- Division of Infectious Diseases, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Microbiology and Molecular Genetics, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Cuiling Xu
- Department of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Lynn Law
- Department of Immunology, University of Washington, Seattle, WA, USA
- Center for Innate Immunity and Immune Diseases, University of Washington, Seattle, WA, USA
| | - Richard R Green
- Department of Immunology, University of Washington, Seattle, WA, USA
- Center for Innate Immunity and Immune Diseases, University of Washington, Seattle, WA, USA
| | - Guido Silvestri
- Department of Pathology & Laboratory Medicine, Emory University, Atlanta, GA, USA
- Division of Microbiology & Immunology, Yerkes National Primate Research Center, Emory University, Atlanta, GA, USA
| | - Steven E Bosinger
- Department of Pathology & Laboratory Medicine, Emory University, Atlanta, GA, USA
- Division of Microbiology & Immunology, Yerkes National Primate Research Center, Emory University, Atlanta, GA, USA
| | - Andrew Nishida
- Department of Microbiology, University of Washington, Seattle, WA, USA
| | - Qingsheng Li
- Nebraska Center for Virology, School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Wuxun Lu
- Nebraska Center for Virology, School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Jianshui Zhang
- Nebraska Center for Virology, School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Matthew J Thomas
- Department of Immunology, University of Washington, Seattle, WA, USA
- Washington National Primate Research Center, University of Washington, Seattle, WA, USA
| | - Jean Chang
- Department of Immunology, University of Washington, Seattle, WA, USA
- Center for Innate Immunity and Immune Diseases, University of Washington, Seattle, WA, USA
| | - Elise Smith
- Department of Immunology, University of Washington, Seattle, WA, USA
- Center for Innate Immunity and Immune Diseases, University of Washington, Seattle, WA, USA
| | - Jeffrey M Weiss
- Department of Microbiology, University of Washington, Seattle, WA, USA
| | - Reem A Dawoud
- Department of Pathology & Laboratory Medicine, Emory University, Atlanta, GA, USA
| | - George H Richter
- Department of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Anita Trichel
- Divison of Laboratory Animal Resources, University of Pittsburgh, Pittsburgh, PA, USA
| | - Dongzhu Ma
- Department of Orthopedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Xinxia Peng
- Department of Molecular Biomedical Sciences, North Carolina State University, Raleigh, NC, USA
| | - Jan Komorowski
- Department of Cell and Molecular Biology, Uppsala University, Uppsala, Sweden
- Institute of Computer Science, PAN, Warsaw, Poland
| | - Cristian Apetrei
- Division of Infectious Diseases, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Microbiology and Molecular Genetics, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Ivona Pandrea
- Department of Microbiology and Molecular Genetics, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Michael Gale
- Department of Immunology, University of Washington, Seattle, WA, USA.
- Center for Innate Immunity and Immune Diseases, University of Washington, Seattle, WA, USA.
- Washington National Primate Research Center, University of Washington, Seattle, WA, USA.
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16
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Weiss JM, Csoszi T, Maglakelidze M, Hoyer RJ, Beck JT, Domine Gomez M, Lowczak A, Aljumaily R, Rocha Lima CM, Boccia RV, Hanna W, Nikolinakos P, Chiu VK, Owonikoko TK, Schuster SR, Hussein MA, Richards DA, Sawrycki P, Bulat I, Hamm JT, Hart LL, Adler S, Antal JM, Lai AY, Sorrentino JA, Yang Z, Malik RK, Morris SR, Roberts PJ, Dragnev KH. Myelopreservation with the CDK4/6 inhibitor trilaciclib in patients with small-cell lung cancer receiving first-line chemotherapy: a phase Ib/randomized phase II trial. Ann Oncol 2019; 30:1613-1621. [PMID: 31504118 PMCID: PMC6857609 DOI: 10.1093/annonc/mdz278] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Chemotherapy-induced damage of hematopoietic stem and progenitor cells (HSPC) causes multi-lineage myelosuppression. Trilaciclib is an intravenous CDK4/6 inhibitor in development to proactively preserve HSPC and immune system function during chemotherapy (myelopreservation). Preclinically, trilaciclib transiently maintains HSPC in G1 arrest and protects them from chemotherapy damage, leading to faster hematopoietic recovery and enhanced antitumor immunity. PATIENTS AND METHODS This was a phase Ib (open-label, dose-finding) and phase II (randomized, double-blind placebo-controlled) study of the safety, efficacy and PK of trilaciclib in combination with etoposide/carboplatin (E/P) therapy for treatment-naive extensive-stage small-cell lung cancer patients. Patients received trilaciclib or placebo before E/P on days 1-3 of each cycle. Select end points were prespecified to assess the effect of trilaciclib on myelosuppression and antitumor efficacy. RESULTS A total of 122 patients were enrolled, with 19 patients in part 1 and 75 patients in part 2 receiving study drug. Improvements were seen with trilaciclib in neutrophil, RBC (red blood cell) and lymphocyte measures. Safety on trilaciclib+E/P was improved with fewer ≥G3 adverse events (AEs) in trilaciclib (50%) versus placebo (83.8%), primarily due to less hematological toxicity. No trilaciclib-related ≥G3 AEs occurred. Antitumor efficacy assessment for trilaciclib versus placebo, respectively, showed: ORR (66.7% versus 56.8%, P = 0.3831); median PFS [6.2 versus 5.0 m; hazard ratio (HR) 0.71; P = 0.1695]; and OS (10.9 versus 10.6 m; HR 0.87; P = 0.6107). CONCLUSION Trilaciclib demonstrated an improvement in the patient's tolerability of chemotherapy as shown by myelopreservation across multiple hematopoietic lineages resulting in fewer supportive care interventions and dose reductions, improved safety profile, and no detriment to antitumor efficacy. These data demonstrate strong proof-of-concept for trilaciclib's myelopreservation benefits. CLINICAL TRAIL NUMBER NCT02499770.
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Affiliation(s)
- J M Weiss
- Division of Hematology and Oncology, Lineberger Comprehensive Cancer Center at the University of North Carolina, Chapel Hill, USA
| | - T Csoszi
- Oncology, Hetenyi Geza Korhaz, Onkologiai Kozpont, Szolnok, Hungary
| | - M Maglakelidze
- Department of Oncology, Research Institute of Clinical Medicine, Tbilisi, Georgia, USA
| | - R J Hoyer
- Department of Oncology, Memorial Hospital, University of Colorado Health, Colorado Springs, USA
| | - J T Beck
- Department of Medical Oncology and Hematology, Highlands Oncology Group, Fayetteville, USA
| | - M Domine Gomez
- Department of Oncology, University Hospital Fundacion Jimenez Diaz, IIS-FJD, Madrid, Spain
| | - A Lowczak
- Department of Pulmonology, Faculty of Health and Science, University of Warmia and Mazury in Olsztyn, Poland
| | - R Aljumaily
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, USA
| | - C M Rocha Lima
- Gibbs Cancer Center and Research Institute, Spartanburg, USA
| | - R V Boccia
- Center for Cancer and Blood Disorders, Bethesda, USA
| | - W Hanna
- Hematology/Oncology, University of Tennessee Medical Center, Knoxville, USA
| | - P Nikolinakos
- University Cancer & Blood Center, LLC, Athens, Greece
| | - V K Chiu
- Department of Hematology/Oncology, University of New Mexico Comprehensive Cancer Center, Albuquerque, USA
| | - T K Owonikoko
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, USA
| | | | - M A Hussein
- Department of Oncology, Florida Cancer Specialists, Leesburg, USA
| | - D A Richards
- Department of Oncology, US Oncology Research, Tyler, USA
| | - P Sawrycki
- Department of Cancer Chemotherapy, Provincial Hospital, Toruń, Poland
| | - I Bulat
- ARENSIA Oncology Unit, Institute of Oncology, Chisinau, Moldova
| | - J T Hamm
- Department of Medical Oncology, Norton Health Care, Louisville, USA
| | - L L Hart
- Drug Development Program, Floridia Cancer Specialists, Fort Myers, USA
| | - S Adler
- Clinical Research, G1 Therapeutics, Inc., Research Triangle Park, USA
| | - J M Antal
- Clinical Research, G1 Therapeutics, Inc., Research Triangle Park, USA
| | - A Y Lai
- Clinical Research, G1 Therapeutics, Inc., Research Triangle Park, USA
| | - J A Sorrentino
- Clinical Research, G1 Therapeutics, Inc., Research Triangle Park, USA
| | - Z Yang
- Clinical Research, G1 Therapeutics, Inc., Research Triangle Park, USA
| | - R K Malik
- Clinical Research, G1 Therapeutics, Inc., Research Triangle Park, USA
| | - S R Morris
- Clinical Research, G1 Therapeutics, Inc., Research Triangle Park, USA
| | - P J Roberts
- Clinical Research, G1 Therapeutics, Inc., Research Triangle Park, USA
| | - K H Dragnev
- Department of Hematology/Oncology, Norris Cotton Cancer Center Dartmouth-Hitchcock Medical Center, Lebanon, USA.
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17
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Felsen UR, Torian LV, Futterman DC, Stafford S, Xia Q, Allan D, Esses D, Cunningham CO, Weiss JM, Zingman BS. An expanded HIV screening strategy in the Emergency Department fails to identify most patients with undiagnosed infection: insights from a blinded serosurvey. AIDS Care 2019; 32:202-208. [PMID: 31146539 DOI: 10.1080/09540121.2019.1619663] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Screening for HIV in Emergency Departments (EDs) is recommended to address the problem of undiagnosed HIV. Serosurveys are an important method for estimating the prevalence of undiagnosed HIV and can provide insight into the effectiveness of an HIV screening strategy. We performed a blinded serosurvey in an ED offering non-targeted HIV screening to determine the proportion of patients with undiagnosed HIV who were diagnosed during their visit. The study was conducted in a high-volume, urban ED and included patients who had blood drawn for clinical purposes and had sufficient remnant specimen to undergo deidentified HIV testing. Among 4752 patients not previously diagnosed with HIV, 1403 (29.5%) were offered HIV screening and 543 (38.7% of those offered) consented. Overall, undiagnosed HIV was present in 12 patients (0.25%): six among those offered screening (0.4%), and six among those not offered screening (0.2%). Among those with undiagnosed HIV, two (16.7%) consented to screening and were diagnosed during their visit. Despite efforts to increase HIV screening, more than 80% of patients with undiagnosed HIV were not tested during their ED visit. Although half of those with undiagnosed HIV were missed because they were not offered screening, the yield was further diminished because a substantial proportion of patients declined screening. To avoid missed opportunities for diagnosis in the ED, strategies to further improve implementation of HIV screening and optimize rates of consent are needed.
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Affiliation(s)
- Uriel R Felsen
- Department of Medicine, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, NY, USA
| | - Lucia V Torian
- HIV Epidemiology and Field Services Program, New York City Department of Health and Mental Hygiene, New York, NY, USA
| | - Donna C Futterman
- Adolescent AIDS Program, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY, USA
| | - Stephen Stafford
- Adolescent AIDS Program, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY, USA
| | - Qiang Xia
- HIV Epidemiology and Field Services Program, New York City Department of Health and Mental Hygiene, New York, NY, USA
| | - David Allan
- Department of Emergency Medicine, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, NY, USA
| | - David Esses
- Department of Emergency Medicine, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, NY, USA
| | - Chinazo O Cunningham
- Department of Medicine, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, NY, USA
| | - Jeffrey M Weiss
- Department of Medicine, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, NY, USA
| | - Barry S Zingman
- Department of Medicine, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, NY, USA
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18
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Burns J, Miller T, Weiss JM, Erdfarb A, Silber D, Goldberg-Stein S. Just Culture: Practical Implementation for Radiologist Peer Review. J Am Coll Radiol 2018; 16:384-388. [PMID: 30584040 DOI: 10.1016/j.jacr.2018.10.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 10/26/2018] [Indexed: 10/27/2022]
Abstract
Peer review is a cornerstone of quality improvement programs and serves to support the peer learning process. Peer review in radiology incorporates the review of diagnostic imaging interpretation, interventional procedures, communication, and the evaluation of untoward patient events. A just culture is an environment in which errors and near-miss events are evaluated in a deliberately nonpunitive framework, avoiding a culture of blame and responsibility and focusing instead on error prevention and fostering a culture of continuous quality improvement. Adoption of a just culture requires careful attention to detail and relies on continuous coaching of individuals and teams to ensure future systems improvements and a culture of safety. The authors describe the practical implementation of a just culture framework for peer review in an academic radiology department and highlight its application to interpretive, noninterpretive, and procedural domains through case examples.
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Affiliation(s)
- Judah Burns
- Department of Radiology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York.
| | - Todd Miller
- Department of Radiology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York
| | - Jeffrey M Weiss
- Department of Medicine, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York
| | - Amichai Erdfarb
- Department of Radiology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York
| | - David Silber
- Albert Einstein College of Medicine, Bronx, New York
| | - Shlomit Goldberg-Stein
- Department of Radiology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York
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19
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Weiss JM, Flesher SN, Franklin R, Collinger JL, Gaunt RA. Artifact-free recordings in human bidirectional brain–computer interfaces. J Neural Eng 2018; 16:016002. [DOI: 10.1088/1741-2552/aae748] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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20
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Downey JE, Weiss JM, Flesher SN, Thumser ZC, Marasco PD, Boninger ML, Gaunt RA, Collinger JL. Implicit Grasp Force Representation in Human Motor Cortical Recordings. Front Neurosci 2018; 12:801. [PMID: 30429772 PMCID: PMC6220062 DOI: 10.3389/fnins.2018.00801] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 10/15/2018] [Indexed: 01/19/2023] Open
Abstract
In order for brain-computer interface (BCI) systems to maximize functionality, users will need to be able to accurately modulate grasp force to avoid dropping heavy objects while also being able to handle fragile items. We present a case-study consisting of two experiments designed to identify whether intracortical recordings from the motor cortex of a person with tetraplegia could predict intended grasp force. In the first task, we were able classify neural responses to attempted grasps of four objects, each of which required similar grasp kinematics but different implicit grasp force targets, with 69% accuracy. In the second task, the subject attempted to move a virtual robotic arm in space to grasp a simple virtual object. For each trial, the subject was asked to grasp the virtual object with the force appropriate for one of the four objects from the first experiment, with the goal of measuring an implicit representation of grasp force. While the subject knew the grasp force during all phases of the trial, accurate classification was only achieved during active grasping, not while the hand moved to, transported, or released the object. In both tasks, misclassifications were most often to the object with an adjacent force requirement. In addition to the implications for understanding the representation of grasp force in motor cortex, these results are a first step toward creating intelligent algorithms to help BCI users grasp and manipulate a variety of objects that will be encountered in daily life. Clinical Trial Identifier: NCT01894802 https://clinicaltrials.gov/ct2/show/NCT01894802.
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Affiliation(s)
- John E Downey
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States.,Center for the Neural Basis of Cognition, Pittsburgh, PA, United States.,Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL, United States.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, United States
| | - Jeffrey M Weiss
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States.,Center for the Neural Basis of Cognition, Pittsburgh, PA, United States.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, United States
| | - Sharlene N Flesher
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States.,Center for the Neural Basis of Cognition, Pittsburgh, PA, United States.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, United States.,Department of Neurosurgery, Stanford University, Stanford, CA, United States
| | - Zachary C Thumser
- Laboratory for Bionic Integration, Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States.,Research Service, Louis Stokes Cleveland VA Medical Center, Cleveland, OH, United States
| | - Paul D Marasco
- Laboratory for Bionic Integration, Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States.,Advanced Platform Technology Center of Excellence, Louis Stokes Cleveland VA Medical Center, Cleveland, OH, United States
| | - Michael L Boninger
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, United States.,VA Pittsburgh Healthcare System, Pittsburgh, PA, United States
| | - Robert A Gaunt
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States.,Center for the Neural Basis of Cognition, Pittsburgh, PA, United States.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, United States
| | - Jennifer L Collinger
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States.,Center for the Neural Basis of Cognition, Pittsburgh, PA, United States.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, United States.,VA Pittsburgh Healthcare System, Pittsburgh, PA, United States
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21
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Hernandez-Colon A, Lemkhen M, Motyka TF, Shen Y, Weiss JM, Di Palo KE. Who's Readmitted for Heart Failure and Why? Real-time Capture of Admissions through an Institutional Analytics Dashboard. J Card Fail 2018. [DOI: 10.1016/j.cardfail.2018.07.355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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22
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Teixeira PA, Bresnahan MP, Laraque F, Litwin AH, Shukla SJ, Schwartz JM, Reynoso S, Perumalswami PV, Weiss JM, Wyatt B, Schackman BR. Telementoring of primary care providers delivering hepatitis C treatment in New York City: Results from Project INSPIRE. Learn Health Syst 2018; 2:e10056. [PMID: 31106275 PMCID: PMC6508766 DOI: 10.1002/lrh2.10056] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 03/30/2018] [Accepted: 04/04/2018] [Indexed: 12/17/2022] Open
Abstract
INTRODUCTION The recent availability of highly effective, easily administered, and relatively nontoxic treatments for hepatitis C virus (HCV) infection provides an opportunity for clinicians to treat HCV in nonspecialist settings with appropriate support. Project INSPIRE provides care coordination to HCV patients and a web-based training program (telementoring) on disease management and treatment by HCV specialists to primary care providers inexperienced in HCV treatment. Weekly telementoring sessions use a didactic and case-based approach to instruct non-HCV providers on how to identify and assess HCV treatment candidates and prescribe appropriate treatment. METHODS We used mixed methods to assess the telementoring service, including provider surveys and semistructured interviews. Quantitative data were analyzed using descriptive statistics, and qualitative data were analyzed to identify dominant themes. RESULTS Provider survey responses indicated an increased ability to identify and evaluate HCV treatment candidates and increased confidence in sharing knowledge with peers and patients. Interviews revealed a high degree of satisfaction with the telementoring service and Project INSPIRE overall. The telementoring service was viewed as having enhanced providers' knowledge, confidence, and ability to treat their own HCV-infected patients rather than having to refer them to an HCV specialist with resulting benefits for continuity of care. Providers reported comradery and collegiality with other INSPIRE providers and satisfaction with professional growth from attaining new knowledge and skills via the telementoring service. CONCLUSIONS Using readily available web conferencing technology, telementoring can facilitate knowledge transfer between specialists and primary care providers, facilitating continuity of care for patients and increased provider satisfaction.
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Affiliation(s)
- Paul A. Teixeira
- Heathcare Policy & ResearchWeill Cornell Medical CollegeNew York CityNew York
| | - Marie P. Bresnahan
- Bureau of Communicable DiseasesNew York City Department of Health and Mental HygieneNew York CityNew York
| | - Fabienne Laraque
- Bureau of Communicable DiseasesNew York City Department of Health and Mental HygieneNew York CityNew York
| | - Alain H. Litwin
- Department of MedicineMontefiore Medical CenterNew York CityNew York
| | - Shuchin J. Shukla
- Department of MedicineMontefiore Medical CenterNew York CityNew York
| | | | - Sheila Reynoso
- Department of MedicineMontefiore Medical CenterNew York CityNew York
| | | | - Jeffrey M. Weiss
- Department of MedicineMount Sinai Medical CenterNew York CityNew York
| | - Brooke Wyatt
- Department of MedicineMount Sinai Medical CenterNew York CityNew York
| | - Bruce R. Schackman
- Heathcare Policy & ResearchWeill Cornell Medical CollegeNew York CityNew York
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23
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Dutta M, Robertson SJ, Okumura A, Scott DP, Chang J, Weiss JM, Sturdevant GL, Feldmann F, Haddock E, Chiramel AI, Ponia SS, Dougherty JD, Katze MG, Rasmussen AL, Best SM. A Systems Approach Reveals MAVS Signaling in Myeloid Cells as Critical for Resistance to Ebola Virus in Murine Models of Infection. Cell Rep 2017; 18:816-829. [PMID: 28099857 DOI: 10.1016/j.celrep.2016.12.069] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [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: 07/14/2016] [Revised: 11/11/2016] [Accepted: 12/20/2016] [Indexed: 01/08/2023] Open
Abstract
The unprecedented 2013-2016 outbreak of Ebola virus (EBOV) resulted in over 11,300 human deaths. Host resistance to RNA viruses requires RIG-I-like receptor (RLR) signaling through the adaptor protein, mitochondrial antiviral signaling protein (MAVS), but the role of RLR-MAVS in orchestrating anti-EBOV responses in vivo is not known. Here we apply a systems approach to MAVS-/- mice infected with either wild-type or mouse-adapted EBOV. MAVS controlled EBOV replication through the expression of IFNα, regulation of inflammatory responses in the spleen, and prevention of cell death in the liver, with macrophages implicated as a major cell type influencing host resistance. A dominant role for RLR signaling in macrophages was confirmed following conditional MAVS deletion in LysM+ myeloid cells. These findings reveal tissue-specific MAVS-dependent transcriptional pathways associated with resistance to EBOV, and they demonstrate that EBOV adaptation to cause disease in mice involves changes in two distinct events, RLR-MAVS antagonism and suppression of RLR-independent IFN-I responses.
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Affiliation(s)
- Mukta Dutta
- Department of Microbiology, School of Medicine, University of Washington, Seattle, WA 59105, USA
| | - Shelly J Robertson
- Laboratory of Virology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, Hamilton, MT 59840, USA
| | - Atsushi Okumura
- Department of Microbiology, School of Medicine, University of Washington, Seattle, WA 59105, USA; Laboratory of Virology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, Hamilton, MT 59840, USA; Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY 10032, USA
| | - Dana P Scott
- Rocky Mountain Veterinary Branch, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, Hamilton, MT 59840, USA
| | - Jean Chang
- Department of Microbiology, School of Medicine, University of Washington, Seattle, WA 59105, USA
| | - Jeffrey M Weiss
- Department of Microbiology, School of Medicine, University of Washington, Seattle, WA 59105, USA
| | - Gail L Sturdevant
- Laboratory of Virology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, Hamilton, MT 59840, USA
| | - Friederike Feldmann
- Laboratory of Virology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, Hamilton, MT 59840, USA
| | - Elaine Haddock
- Laboratory of Virology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, Hamilton, MT 59840, USA
| | - Abhilash I Chiramel
- Laboratory of Virology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, Hamilton, MT 59840, USA
| | - Sanket S Ponia
- Laboratory of Virology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, Hamilton, MT 59840, USA
| | - Jonathan D Dougherty
- Laboratory of Virology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, Hamilton, MT 59840, USA
| | - Michael G Katze
- Department of Microbiology, School of Medicine, University of Washington, Seattle, WA 59105, USA
| | - Angela L Rasmussen
- Department of Microbiology, School of Medicine, University of Washington, Seattle, WA 59105, USA; Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY 10032, USA
| | - Sonja M Best
- Laboratory of Virology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, Hamilton, MT 59840, USA.
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24
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Weins AB, Scharffetter-Kochanek K, Weiss T, Brockow K, Biedermann T, Psotta-Schachtner C, Mockenhaupt M, Weiss JM. Is neutrophilic desquamative erythroderma a form of acute generalized exanthematous pustulosis? J Eur Acad Dermatol Venereol 2017; 32:e230-e232. [PMID: 29224230 DOI: 10.1111/jdv.14751] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- A B Weins
- Department of Dermatology and Allergy Biederstein, Technical University of Munich (TUM), Munich, Germany.,Department of Dermatology and Allergy, University of Ulm, Ulm, Germany
| | | | - T Weiss
- Department of Dermatology and Allergy, University of Ulm, Ulm, Germany
| | - K Brockow
- Department of Dermatology and Allergy Biederstein, Technical University of Munich (TUM), Munich, Germany
| | - T Biedermann
- Department of Dermatology and Allergy Biederstein, Technical University of Munich (TUM), Munich, Germany
| | | | - M Mockenhaupt
- Dokumentationszentrum schwerer Hautreaktionen (dZh), Department of Dermatology, Medical Center and Medical Faculty, University of Freiburg, Freiburg, Germany
| | - J M Weiss
- Department of Dermatology and Allergy, University of Ulm, Ulm, Germany
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25
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Adelman JS, Aschner JL, Schechter CB, Angert RM, Weiss JM, Rai A, Parakkattu V, Goffman D, Applebaum JR, Racine AD, Southern WN. Babyboy/Babygirl: A National Survey on the Use of Temporary, Nondistinct Naming Conventions for Newborns in Neonatal Intensive Care Units. Clin Pediatr (Phila) 2017; 56:1157-1159. [PMID: 28403654 DOI: 10.1177/0009922817701178] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 11/15/2022]
Affiliation(s)
- Jason S Adelman
- 1 NewYork-Presbyterian Hospital, New York, NY, USA.,2 Columbia University Medical Center, New York, NY, USA
| | - Judy L Aschner
- 3 Children's Hospital at Montefiore, Bronx, NY, USA.,4 Montefiore Medical Center, Bronx, NY, USA.,5 Albert Einstein College of Medicine, Bronx, NY, USA
| | | | - Robert M Angert
- 3 Children's Hospital at Montefiore, Bronx, NY, USA.,5 Albert Einstein College of Medicine, Bronx, NY, USA
| | - Jeffrey M Weiss
- 4 Montefiore Medical Center, Bronx, NY, USA.,5 Albert Einstein College of Medicine, Bronx, NY, USA
| | - Amisha Rai
- 1 NewYork-Presbyterian Hospital, New York, NY, USA
| | | | - Dena Goffman
- 1 NewYork-Presbyterian Hospital, New York, NY, USA.,2 Columbia University Medical Center, New York, NY, USA
| | | | - Andrew D Racine
- 4 Montefiore Medical Center, Bronx, NY, USA.,5 Albert Einstein College of Medicine, Bronx, NY, USA
| | - William N Southern
- 4 Montefiore Medical Center, Bronx, NY, USA.,5 Albert Einstein College of Medicine, Bronx, NY, USA
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26
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Di Palo KE, Weiss JM, Loehner JR, Gillespie L, Assafin M, Piña IL. Establishment of an Institutional Heart Failure Registry as a Cornerstone to Readmission Reduction Efforts. J Card Fail 2017. [DOI: 10.1016/j.cardfail.2017.07.281] [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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27
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Genuneit J, Braig S, Logan CA, Weiss JM, Brenner H, Rothenbacher D. Stabile Inzidenz der atopischen Dermatitis über eine Dekade aber Diskrepanzen zwischen Eltern- und Arztberichten: die Ulmer Geburtskohorten. Das Gesundheitswesen 2017. [DOI: 10.1055/s-0037-1605728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- J Genuneit
- Universität Ulm, Institut für Epidemiologie und Medizinische Biometrie, Ulm
| | - S Braig
- Universität Ulm, Institut für Epidemiologie und Medizinische Biometrie, Ulm
| | - CA Logan
- Universität Ulm, Institut für Epidemiologie und Medizinische Biometrie, Ulm
| | - JM Weiss
- Universitätsklinikum Ulm, Klinik für Dermatologie und Allergologie, Ulm
| | - H Brenner
- Deutsches Krebsforschungszentrum, Abteilung Klinische Epidemiologie und Alternsforschung, Heidelberg
| | - D Rothenbacher
- Universität Ulm, Institut für Epidemiologie und Medizinische Biometrie, Ulm
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28
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Adelman JS, Aschner JL, Schechter CB, Angert RM, Weiss JM, Rai A, Berger MA, Reissman SH, Yongue C, Chacko B, Dadlez NM, Applebaum JR, Racine AD, Southern WN. Evaluating Serial Strategies for Preventing Wrong-Patient Orders in the NICU. Pediatrics 2017; 139:peds.2016-2863. [PMID: 28557730 DOI: 10.1542/peds.2016-2863] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [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] [Accepted: 01/12/2017] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND NICU patients have characteristics believed to increase their risk for wrong-patient errors; however, little is known about the frequency of wrong-patient errors in the NICU or about effective interventions for preventing these errors. We conducted a quality improvement study to evaluate the frequency of wrong-patient orders in the NICU and to assess the effectiveness of an ID reentry intervention and a distinct naming convention (eg, "Wendysgirl") for reducing these errors, using non-NICU pediatric units as a comparator. METHODS Using a validated measure, we examined the rate of wrong-patient orders in NICU and non-NICU pediatric units during 3 periods: baseline (before implementing interventions), ID reentry intervention (reentry of patient identifiers before placing orders), and combined intervention (addition of a distinct naming convention for newborns). RESULTS We reviewed >850 000 NICU orders and >3.5 million non-NICU pediatric orders during the 7-year study period. At baseline, wrong-patient orders were more frequent in NICU than in non-NICU pediatric units (117.2 vs 74.9 per 100 000 orders, respectively; odds ratio 1.56; 95% confidence interval, 1.34-1.82). The ID reentry intervention reduced the frequency of errors in the NICU to 60.2 per 100 000 (48.7% reduction; P < .001). The combined ID reentry and distinct naming interventions yielded an additional decrease to 45.6 per 100 000 (61.1% reduction from baseline; P < .001). CONCLUSIONS The risk of wrong-patient orders in the NICU was significantly higher than in non-NICU pediatric units. Implementation of a combined ID reentry intervention and distinct naming convention greatly reduced this risk.
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Affiliation(s)
- Jason S Adelman
- Departments of Medicine and Biomedical Informatics, Columbia University Medical Center, New York, New York; .,Division of Quality and Patient Safety, NewYork-Presbyterian Hospital, New York, New York
| | - Judy L Aschner
- Children's Hospital at Montefiore, Bronx, New York.,Albert Einstein College of Medicine, Bronx, New York.,Montefiore Medical Center, Bronx, New York; and
| | | | - Robert M Angert
- Children's Hospital at Montefiore, Bronx, New York.,Albert Einstein College of Medicine, Bronx, New York
| | - Jeffrey M Weiss
- Albert Einstein College of Medicine, Bronx, New York.,Montefiore Medical Center, Bronx, New York; and
| | - Amisha Rai
- Division of Quality and Patient Safety, NewYork-Presbyterian Hospital, New York, New York
| | - Matthew A Berger
- Albert Einstein College of Medicine, Bronx, New York.,Montefiore Medical Center, Bronx, New York; and
| | | | - Camille Yongue
- Case Western University Reserve School of Medicine, Cleveland, Ohio
| | | | - Nina M Dadlez
- Children's Hospital at Montefiore, Bronx, New York.,Albert Einstein College of Medicine, Bronx, New York
| | - Jo R Applebaum
- Division of Quality and Patient Safety, NewYork-Presbyterian Hospital, New York, New York
| | - Andrew D Racine
- Albert Einstein College of Medicine, Bronx, New York.,Montefiore Medical Center, Bronx, New York; and
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29
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Norrgran Engdahl J, Bignert A, Jones B, Athanassiadis I, Bergman Å, Weiss JM. Cats' Internal Exposure to Selected Brominated Flame Retardants and Organochlorines Correlated to House Dust and Cat Food. Environ Sci Technol 2017; 51:3012-3020. [PMID: 28192994 DOI: 10.1021/acs.est.6b05025] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Pet cats may be used as a biomarker for assessing exposures to organohalogen compounds (OHCs) adsorbed to household dust in home environments. This study explores two exposure routes of OHCs, ingestion of OHCs (i) via house dust and (ii) via cat food. House dust from 17 Swedish homes and serum from the participating families' pet cats were collected, and cat food was purchased matching the diet reported. Paired samples of cat serum, house dust, and cat food were analyzed for brominated flame retardants/natural products (polybrominated diphenyl ethers (PBDEs), decabromobiphenyl (BB-209), decabromodiphenyl ethane (DBDPE), 2,4,6-tribromophenol (2,4,6-TBP), OH-PBDEs) and organochlorines (polychlorinated biphenyls (PCBs), 1,1-bis(4,4'-dichlorodiphenyl)-2,2,2-trichloroethane (4,4'-DDT), 1,1-bis(4,4'-dichlorodiphenyl)-2,2-dichloroethene (4,4'-DDE), hexachlorobenzene (HCB), pentachlorophenol (PCP)). Significant correlations were found between serum and dust samples from the living rooms for BDE-47 (p < 0.035), BDE-99 (p < 0.035), and BDE-153 (p < 0.039), from the adult's bedroom for BDE-99 (p < 0.019) and from all rooms for BDE-99 (p < 0.020) and BB-209 (p < 0.048). This is the first time a correlation between cat serum levels and household dust has been established, a finding that supports the hypothesis that dust is a significant exposure route for cats. Serum levels were also significantly correlated with concentrations found in cat food for 6-OH-BDE47 (p < 0.002), 2,4,6-TBP (p < 0.035), and BB-209 (p < 0.007). DBDPE was found in high concentrations in all dust (median 154 pmol/g) and food samples (median 0.7 pmol/g lw) but was below detection in serum samples, suggesting low or no bioavailability for DBDPE in cats.
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Affiliation(s)
- J Norrgran Engdahl
- Department of Environmental Science and Analytical Chemistry, Stockholm University , SE-106 91 Stockholm, Sweden
| | - A Bignert
- Swedish Museum of Natural History , Frescativägen 40, SE-114 18 Stockholm, Sweden
| | - B Jones
- Department of Clinical Sciences, Swedish University of Agricultural Sciences , SE-750 07 Uppsala, Sweden
| | - I Athanassiadis
- Department of Environmental Science and Analytical Chemistry, Stockholm University , SE-106 91 Stockholm, Sweden
| | - Å Bergman
- Department of Environmental Science and Analytical Chemistry, Stockholm University , SE-106 91 Stockholm, Sweden
- Swedish Toxicology Sciences Research Centre (Swetox) , Forskargatan 20, SE-151 36 Södertälje, Sweden
| | - J M Weiss
- Department of Environmental Science and Analytical Chemistry, Stockholm University , SE-106 91 Stockholm, Sweden
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30
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Flesher SN, Collinger JL, Foldes ST, Weiss JM, Downey JE, Tyler-Kabara EC, Bensmaia SJ, Schwartz AB, Boninger ML, Gaunt RA. Intracortical microstimulation of human somatosensory cortex. Sci Transl Med 2016; 8:361ra141. [PMID: 27738096 DOI: 10.1126/scitranslmed.aaf8083] [Citation(s) in RCA: 374] [Impact Index Per Article: 46.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Accepted: 10/05/2016] [Indexed: 12/21/2022]
Abstract
Intracortical microstimulation of the somatosensory cortex offers the potential for creating a sensory neuroprosthesis to restore tactile sensation. Whereas animal studies have suggested that both cutaneous and proprioceptive percepts can be evoked using this approach, the perceptual quality of the stimuli cannot be measured in these experiments. We show that microstimulation within the hand area of the somatosensory cortex of a person with long-term spinal cord injury evokes tactile sensations perceived as originating from locations on the hand and that cortical stimulation sites are organized according to expected somatotopic principles. Many of these percepts exhibit naturalistic characteristics (including feelings of pressure), can be evoked at low stimulation amplitudes, and remain stable for months. Further, modulating the stimulus amplitude grades the perceptual intensity of the stimuli, suggesting that intracortical microstimulation could be used to convey information about the contact location and pressure necessary to perform dexterous hand movements associated with object manipulation.
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Affiliation(s)
- Sharlene N Flesher
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, USA.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Jennifer L Collinger
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, USA.,Center for the Neural Basis of Cognition, Pittsburgh, PA 15213, USA.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA 15213, USA.,Department of Veterans Affairs Medical Center, Pittsburgh, PA 15206, USA
| | - Stephen T Foldes
- Center for the Neural Basis of Cognition, Pittsburgh, PA 15213, USA.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA 15213, USA.,Department of Veterans Affairs Medical Center, Pittsburgh, PA 15206, USA
| | - Jeffrey M Weiss
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, USA.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - John E Downey
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, USA.,Center for the Neural Basis of Cognition, Pittsburgh, PA 15213, USA
| | - Elizabeth C Tyler-Kabara
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, USA.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA 15213, USA.,Department of Neurological Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA.,McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Sliman J Bensmaia
- Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL 60637, USA
| | - Andrew B Schwartz
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, USA.,Center for the Neural Basis of Cognition, Pittsburgh, PA 15213, USA.,McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA.,Department of Neurobiology, University of Pittsburgh, Pittsburgh, PA 15213, USA.,Systems Neuroscience Institute, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Michael L Boninger
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, USA.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA 15213, USA.,Department of Veterans Affairs Medical Center, Pittsburgh, PA 15206, USA.,McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Robert A Gaunt
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, USA. .,Center for the Neural Basis of Cognition, Pittsburgh, PA 15213, USA.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA 15213, USA
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Geitner M, Hoppe I, Biskup C, Runnebaum IB, Weiss JM. Ulipristal hemmt Progesteron-vermittelte Kalziumsignale und könnte mit der für die Spermienfunktion wichtigen Progesteronwirkung interagieren. Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1592780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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32
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Afreen S, Bohler S, Kunze M, Weiss JM, Erlacher M. The role of the anti-apoptotic protein Bcl-xL for the maintenance of human hematopoiesis. Klin Padiatr 2016. [DOI: 10.1055/s-0036-1582503] [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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33
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Downey JE, Weiss JM, Muelling K, Venkatraman A, Valois JS, Hebert M, Bagnell JA, Schwartz AB, Collinger JL. Blending of brain-machine interface and vision-guided autonomous robotics improves neuroprosthetic arm performance during grasping. J Neuroeng Rehabil 2016; 13:28. [PMID: 26987662 PMCID: PMC4797113 DOI: 10.1186/s12984-016-0134-9] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Accepted: 03/04/2016] [Indexed: 11/26/2022] Open
Abstract
Background Recent studies have shown that brain-machine interfaces (BMIs) offer great potential for restoring upper limb function. However, grasping objects is a complicated task and the signals extracted from the brain may not always be capable of driving these movements reliably. Vision-guided robotic assistance is one possible way to improve BMI performance. We describe a method of shared control where the user controls a prosthetic arm using a BMI and receives assistance with positioning the hand when it approaches an object. Methods Two human subjects with tetraplegia used a robotic arm to complete object transport tasks with and without shared control. The shared control system was designed to provide a balance between BMI-derived intention and computer assistance. An autonomous robotic grasping system identified and tracked objects and defined stable grasp positions for these objects. The system identified when the user intended to interact with an object based on the BMI-controlled movements of the robotic arm. Using shared control, BMI controlled movements and autonomous grasping commands were blended to ensure secure grasps. Results Both subjects were more successful on object transfer tasks when using shared control compared to BMI control alone. Movements made using shared control were more accurate, more efficient, and less difficult. One participant attempted a task with multiple objects and successfully lifted one of two closely spaced objects in 92 % of trials, demonstrating the potential for users to accurately execute their intention while using shared control. Conclusions Integration of BMI control with vision-guided robotic assistance led to improved performance on object transfer tasks. Providing assistance while maintaining generalizability will make BMI systems more attractive to potential users. Trial registration NCT01364480 and NCT01894802. Electronic supplementary material The online version of this article (doi:10.1186/s12984-016-0134-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- John E Downey
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.,Center for the Neural Basis of Cognition, Pittsburgh, PA, USA
| | - Jeffrey M Weiss
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, USA
| | | | - Arun Venkatraman
- Robotics Institute, Carnegie Mellon University, Pittsburgh, PA, USA
| | | | - Martial Hebert
- Robotics Institute, Carnegie Mellon University, Pittsburgh, PA, USA
| | - J Andrew Bagnell
- Robotics Institute, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Andrew B Schwartz
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.,Center for the Neural Basis of Cognition, Pittsburgh, PA, USA.,Department of Neurobiology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Jennifer L Collinger
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA. .,Center for the Neural Basis of Cognition, Pittsburgh, PA, USA. .,Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, USA. .,VA Pittsburgh Healthcare System, Pittsburgh, PA, USA. .,University of Pittsburgh, 3520 5th Avenue, Suite 300, Pittsburgh, PA, 15213, USA.
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Peng X, Thierry-Mieg J, Thierry-Mieg D, Nishida A, Pipes L, Bozinoski M, Thomas MJ, Kelly S, Weiss JM, Raveendran M, Muzny D, Gibbs RA, Rogers J, Schroth GP, Katze MG, Mason CE. Tissue-specific transcriptome sequencing analysis expands the non-human primate reference transcriptome resource (NHPRTR). Nucleic Acids Res 2014; 43:D737-42. [PMID: 25392405 PMCID: PMC4383927 DOI: 10.1093/nar/gku1110] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The non-human primate reference transcriptome resource (NHPRTR, available online at http://nhprtr.org/) aims to generate comprehensive RNA-seq data from a wide variety of non-human primates (NHPs), from lemurs to hominids. In the 2012 Phase I of the NHPRTR project, 19 billion fragments or 3.8 terabases of transcriptome sequences were collected from pools of ∼20 tissues in 15 species and subspecies. Here we describe a major expansion of NHPRTR by adding 10.1 billion fragments of tissue-specific RNA-seq data. For this effort, we selected 11 of the original 15 NHP species and subspecies and constructed total RNA libraries for the same ∼15 tissues in each. The sequence quality is such that 88% of the reads align to human reference sequences, allowing us to compute the full list of expression abundance across all tissues for each species, using the reads mapped to human genes. This update also includes improved transcript annotations derived from RNA-seq data for rhesus and cynomolgus macaques, two of the most commonly used NHP models and additional RNA-seq data compiled from related projects. Together, these comprehensive reference transcriptomes from multiple primates serve as a valuable community resource for genome annotation, gene dynamics and comparative functional analysis.
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Affiliation(s)
- Xinxia Peng
- Department of Microbiology, University of Washington, Seattle, WA 98109, USA Washington National Primate Research Center, Seattle, WA 98109, USA
| | - Jean Thierry-Mieg
- National Center for Biotechnology Information, National Institutes of Health, Bethesda, MD 20894, USA
| | - Danielle Thierry-Mieg
- National Center for Biotechnology Information, National Institutes of Health, Bethesda, MD 20894, USA
| | - Andrew Nishida
- Department of Microbiology, University of Washington, Seattle, WA 98109, USA Washington National Primate Research Center, Seattle, WA 98109, USA
| | - Lenore Pipes
- Department of Physiology and Biophysics, Weill Cornell Medical College, New York, NY 10065, USA Institute for Computational Biology (ICB), Weill Cornell Medical College, New York, NY 10065, USA
| | - Marjan Bozinoski
- Department of Physiology and Biophysics, Weill Cornell Medical College, New York, NY 10065, USA Institute for Computational Biology (ICB), Weill Cornell Medical College, New York, NY 10065, USA
| | - Matthew J Thomas
- Department of Microbiology, University of Washington, Seattle, WA 98109, USA Washington National Primate Research Center, Seattle, WA 98109, USA
| | - Sara Kelly
- Department of Microbiology, University of Washington, Seattle, WA 98109, USA Washington National Primate Research Center, Seattle, WA 98109, USA
| | - Jeffrey M Weiss
- Department of Microbiology, University of Washington, Seattle, WA 98109, USA Washington National Primate Research Center, Seattle, WA 98109, USA
| | | | - Donna Muzny
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Richard A Gibbs
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jeffrey Rogers
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA
| | | | - Michael G Katze
- Department of Microbiology, University of Washington, Seattle, WA 98109, USA Washington National Primate Research Center, Seattle, WA 98109, USA
| | - Christopher E Mason
- Department of Physiology and Biophysics, Weill Cornell Medical College, New York, NY 10065, USA Institute for Computational Biology (ICB), Weill Cornell Medical College, New York, NY 10065, USA Feil Family Brain and Mind Research Institute (BMRI), Weill Cornell Medical College, New York, NY 10065, USA
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Rasmussen AL, Okumura A, Ferris MT, Green R, Feldmann F, Kelly SM, Scott DP, Safronetz D, Haddock E, LaCasse R, Thomas MJ, Sova P, Carter VS, Weiss JM, Miller DR, Shaw GD, Korth MJ, Heise MT, Baric RS, de Villena FPM, Feldmann H, Katze MG. Host genetic diversity enables Ebola hemorrhagic fever pathogenesis and resistance. Science 2014; 346:987-91. [PMID: 25359852 DOI: 10.1126/science.1259595] [Citation(s) in RCA: 208] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Existing mouse models of lethal Ebola virus infection do not reproduce hallmark symptoms of Ebola hemorrhagic fever, neither delayed blood coagulation and disseminated intravascular coagulation nor death from shock, thus restricting pathogenesis studies to nonhuman primates. Here we show that mice from the Collaborative Cross panel of recombinant inbred mice exhibit distinct disease phenotypes after mouse-adapted Ebola virus infection. Phenotypes range from complete resistance to lethal disease to severe hemorrhagic fever characterized by prolonged coagulation times and 100% mortality. Inflammatory signaling was associated with vascular permeability and endothelial activation, and resistance to lethal infection arose by induction of lymphocyte differentiation and cellular adhesion, probably mediated by the susceptibility allele Tek. These data indicate that genetic background determines susceptibility to Ebola hemorrhagic fever.
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Affiliation(s)
| | - Atsushi Okumura
- Department of Microbiology, University of Washington, Seattle, WA, USA. Laboratory of Virology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA
| | - Martin T Ferris
- Department of Genetics, University of North Carolina, Chapel Hill, NC, USA
| | - Richard Green
- Department of Microbiology, University of Washington, Seattle, WA, USA
| | - Friederike Feldmann
- Rocky Mountain Veterinary Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA
| | - Sara M Kelly
- Department of Microbiology, University of Washington, Seattle, WA, USA
| | - Dana P Scott
- Rocky Mountain Veterinary Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA
| | - David Safronetz
- Laboratory of Virology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA
| | - Elaine Haddock
- Laboratory of Virology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA
| | - Rachel LaCasse
- Rocky Mountain Veterinary Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA
| | - Matthew J Thomas
- Department of Microbiology, University of Washington, Seattle, WA, USA
| | - Pavel Sova
- Department of Microbiology, University of Washington, Seattle, WA, USA
| | - Victoria S Carter
- Department of Microbiology, University of Washington, Seattle, WA, USA
| | - Jeffrey M Weiss
- Department of Microbiology, University of Washington, Seattle, WA, USA
| | - Darla R Miller
- Department of Genetics, University of North Carolina, Chapel Hill, NC, USA
| | - Ginger D Shaw
- Department of Genetics, University of North Carolina, Chapel Hill, NC, USA
| | - Marcus J Korth
- Department of Microbiology, University of Washington, Seattle, WA, USA
| | - Mark T Heise
- Department of Genetics, University of North Carolina, Chapel Hill, NC, USA. Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC, USA
| | - Ralph S Baric
- Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC, USA
| | | | - Heinz Feldmann
- Laboratory of Virology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA
| | - Michael G Katze
- Department of Microbiology, University of Washington, Seattle, WA, USA. Washington National Primate Research Center, Seattle, WA, USA.
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Aevermann BD, Pickett BE, Kumar S, Klem EB, Agnihothram S, Askovich PS, Bankhead A, Bolles M, Carter V, Chang J, Clauss TRW, Dash P, Diercks AH, Eisfeld AJ, Ellis A, Fan S, Ferris MT, Gralinski LE, Green RR, Gritsenko MA, Hatta M, Heegel RA, Jacobs JM, Jeng S, Josset L, Kaiser SM, Kelly S, Law GL, Li C, Li J, Long C, Luna ML, Matzke M, McDermott J, Menachery V, Metz TO, Mitchell H, Monroe ME, Navarro G, Neumann G, Podyminogin RL, Purvine SO, Rosenberger CM, Sanders CJ, Schepmoes AA, Shukla AK, Sims A, Sova P, Tam VC, Tchitchek N, Thomas PG, Tilton SC, Totura A, Wang J, Webb-Robertson BJ, Wen J, Weiss JM, Yang F, Yount B, Zhang Q, McWeeney S, Smith RD, Waters KM, Kawaoka Y, Baric R, Aderem A, Katze MG, Scheuermann RH. A comprehensive collection of systems biology data characterizing the host response to viral infection. Sci Data 2014; 1:140033. [PMID: 25977790 PMCID: PMC4410982 DOI: 10.1038/sdata.2014.33] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Accepted: 08/15/2014] [Indexed: 12/13/2022] Open
Abstract
The Systems Biology for Infectious Diseases Research program was established by
the U.S. National Institute of Allergy and Infectious Diseases to investigate
host-pathogen interactions at a systems level. This program generated 47
transcriptomic and proteomic datasets from 30 studies that investigate
in vivo and in vitro host responses to
viral infections. Human pathogens in the Orthomyxoviridae and
Coronaviridae families, especially pandemic H1N1 and avian
H5N1 influenza A viruses and severe acute respiratory syndrome coronavirus
(SARS-CoV), were investigated. Study validation was demonstrated via
experimental quality control measures and meta-analysis of independent
experiments performed under similar conditions. Primary assay results are
archived at the GEO and PeptideAtlas public repositories, while processed
statistical results together with standardized metadata are publically available
at the Influenza Research Database (www.fludb.org) and the Virus Pathogen
Resource (www.viprbrc.org). By comparing data from mutant versus wild-type
virus and host strains, RNA versus protein differential expression, and
infection with genetically similar strains, these data can be used to further
investigate genetic and physiological determinants of host responses to viral
infection.
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Affiliation(s)
| | | | - Sanjeev Kumar
- Northrop Grumman Information Systems, Health IT , Rockville, MD 20850, USA
| | - Edward B Klem
- Northrop Grumman Information Systems, Health IT , Rockville, MD 20850, USA
| | - Sudhakar Agnihothram
- Department of Epidemiology, University of North Carolina at Chapel Hill , Chapel Hill, NC 27599-7400, USA
| | | | - Armand Bankhead
- Oregon Clinical & Translational Research Institute , Portland, Oregon 97239-3098, USA ; Division of Bioinformatics and Computational Biology, Department of Medical Informatics and Clinical Epidemiology, Oregon Health Sciences University , Portland, Oregon 97239-3098, USA
| | - Meagen Bolles
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599-7290, USA
| | - Victoria Carter
- Department of Microbiology, University of Washington , Seattle, WA 98195, USA
| | - Jean Chang
- Department of Microbiology, University of Washington , Seattle, WA 98195, USA
| | - Therese R W Clauss
- Biological Sciences Division, Pacific Northwest National Laboratory , Richland, WA 99352, USA
| | - Pradyot Dash
- Department of Immunology, St. Jude Children's Research Hospital , Memphis, TN 38105-3678, USA
| | - Alan H Diercks
- Seattle Biomedical Research Institute , Seattle, WA 98109, USA
| | - Amie J Eisfeld
- School of Veterinary Medicine, Department of Pathobiological Sciences, Influenza Research Institute, University of Wisconsin-Madison , Madison, WI 53706, USA
| | - Amy Ellis
- School of Veterinary Medicine, Department of Pathobiological Sciences, Influenza Research Institute, University of Wisconsin-Madison , Madison, WI 53706, USA
| | - Shufang Fan
- School of Veterinary Medicine, Department of Pathobiological Sciences, Influenza Research Institute, University of Wisconsin-Madison , Madison, WI 53706, USA
| | - Martin T Ferris
- Department of Genetics, University of North Carolina at Chapel Hill , Chapel Hill, NC 27599-7264, USA
| | - Lisa E Gralinski
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599-7290, USA
| | - Richard R Green
- Department of Microbiology, University of Washington , Seattle, WA 98195, USA
| | - Marina A Gritsenko
- Biological Sciences Division, Pacific Northwest National Laboratory , Richland, WA 99352, USA
| | - Masato Hatta
- School of Veterinary Medicine, Department of Pathobiological Sciences, Influenza Research Institute, University of Wisconsin-Madison , Madison, WI 53706, USA
| | - Robert A Heegel
- Biological Sciences Division, Pacific Northwest National Laboratory , Richland, WA 99352, USA
| | - Jon M Jacobs
- Biological Sciences Division, Pacific Northwest National Laboratory , Richland, WA 99352, USA
| | - Sophia Jeng
- Oregon Clinical & Translational Research Institute , Portland, Oregon 97239-3098, USA
| | - Laurence Josset
- Department of Microbiology, University of Washington , Seattle, WA 98195, USA
| | - Shari M Kaiser
- Seattle Biomedical Research Institute , Seattle, WA 98109, USA
| | - Sara Kelly
- Department of Microbiology, University of Washington , Seattle, WA 98195, USA
| | - G Lynn Law
- Department of Microbiology, University of Washington , Seattle, WA 98195, USA
| | - Chengjun Li
- Division of Animal influenza, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences , Harbin, Heilongjiang Province 150001, China
| | - Jiangning Li
- Seattle Biomedical Research Institute , Seattle, WA 98109, USA
| | - Casey Long
- Department of Epidemiology, University of North Carolina at Chapel Hill , Chapel Hill, NC 27599-7400, USA
| | - Maria L Luna
- Biological Sciences Division, Pacific Northwest National Laboratory , Richland, WA 99352, USA
| | - Melissa Matzke
- Biological Sciences Division, Pacific Northwest National Laboratory , Richland, WA 99352, USA
| | - Jason McDermott
- Biological Sciences Division, Pacific Northwest National Laboratory , Richland, WA 99352, USA
| | - Vineet Menachery
- Department of Epidemiology, University of North Carolina at Chapel Hill , Chapel Hill, NC 27599-7400, USA
| | - Thomas O Metz
- Biological Sciences Division, Pacific Northwest National Laboratory , Richland, WA 99352, USA
| | - Hugh Mitchell
- Biological Sciences Division, Pacific Northwest National Laboratory , Richland, WA 99352, USA
| | - Matthew E Monroe
- Biological Sciences Division, Pacific Northwest National Laboratory , Richland, WA 99352, USA
| | - Garnet Navarro
- Seattle Biomedical Research Institute , Seattle, WA 98109, USA
| | - Gabriele Neumann
- School of Veterinary Medicine, Department of Pathobiological Sciences, Influenza Research Institute, University of Wisconsin-Madison , Madison, WI 53706, USA
| | | | - Samuel O Purvine
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory , Richland, WA 99354, USA
| | | | - Catherine J Sanders
- Department of Immunology, St. Jude Children's Research Hospital , Memphis, TN 38105-3678, USA
| | - Athena A Schepmoes
- Biological Sciences Division, Pacific Northwest National Laboratory , Richland, WA 99352, USA
| | - Anil K Shukla
- Biological Sciences Division, Pacific Northwest National Laboratory , Richland, WA 99352, USA
| | - Amy Sims
- Department of Epidemiology, University of North Carolina at Chapel Hill , Chapel Hill, NC 27599-7400, USA
| | - Pavel Sova
- Department of Microbiology, University of Washington , Seattle, WA 98195, USA
| | - Vincent C Tam
- Seattle Biomedical Research Institute , Seattle, WA 98109, USA
| | - Nicolas Tchitchek
- Department of Microbiology, University of Washington , Seattle, WA 98195, USA
| | - Paul G Thomas
- Department of Immunology, St. Jude Children's Research Hospital , Memphis, TN 38105-3678, USA
| | - Susan C Tilton
- Biological Sciences Division, Pacific Northwest National Laboratory , Richland, WA 99352, USA
| | - Allison Totura
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599-7290, USA
| | - Jing Wang
- Biological Sciences Division, Pacific Northwest National Laboratory , Richland, WA 99352, USA
| | | | - Ji Wen
- Biological Sciences Division, Pacific Northwest National Laboratory , Richland, WA 99352, USA
| | - Jeffrey M Weiss
- Department of Microbiology, University of Washington , Seattle, WA 98195, USA
| | - Feng Yang
- Biological Sciences Division, Pacific Northwest National Laboratory , Richland, WA 99352, USA
| | - Boyd Yount
- Department of Epidemiology, University of North Carolina at Chapel Hill , Chapel Hill, NC 27599-7400, USA
| | - Qibin Zhang
- Biological Sciences Division, Pacific Northwest National Laboratory , Richland, WA 99352, USA
| | - Shannon McWeeney
- Oregon Clinical & Translational Research Institute , Portland, Oregon 97239-3098, USA ; Division of Bioinformatics and Computational Biology, Department of Medical Informatics and Clinical Epidemiology, Oregon Health Sciences University , Portland, Oregon 97239-3098, USA
| | - Richard D Smith
- Biological Sciences Division, Pacific Northwest National Laboratory , Richland, WA 99352, USA
| | - Katrina M Waters
- Biological Sciences Division, Pacific Northwest National Laboratory , Richland, WA 99352, USA
| | - Yoshihiro Kawaoka
- School of Veterinary Medicine, Department of Pathobiological Sciences, Influenza Research Institute, University of Wisconsin-Madison , Madison, WI 53706, USA
| | - Ralph Baric
- Department of Epidemiology, University of North Carolina at Chapel Hill , Chapel Hill, NC 27599-7400, USA ; Department of Microbiology and Immunology, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599-7290, USA
| | - Alan Aderem
- Seattle Biomedical Research Institute , Seattle, WA 98109, USA
| | - Michael G Katze
- Department of Microbiology, University of Washington , Seattle, WA 98195, USA ; Washington National Primate Research Center, University of Washington , Seattle, WA 98195, USA
| | - Richard H Scheuermann
- J. Craig Venter Institute , La Jolla, CA 92037, USA ; Department of Pathology, University of California , San Diego, CA 92093, USA
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37
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Schumann-Stoiber KM, Weiss JM, Weiss T, Scharffetter-Kochanek K, Kropf-Sanchen C, Rüdiger S, Hübers B, Rottbauer W, Schumann C. Lupus pernio als Erstmanifestation einer Sarkoidose mit schwerer Lungenbeteiligung. Pneumologie 2014. [DOI: 10.1055/s-0034-1368007] [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: 10/25/2022]
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Leal TB, Holden T, Cavalcante L, Allen GO, Schumacher JR, Smith MA, Weiss JM, Neuman HB, LoConte NK. Colon Cancer Staging in Vulnerable Older Adults: Adherence to National Guidelines and Impact on Survival. Ann Hematol Oncol 2014; 1:1012. [PMID: 25914900 PMCID: PMC4405259] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
BACKGROUND There is concern that elders are not adequately evaluated prior to colon cancer surgery. We sought to determine adherence with ACOVE-3 (Assessing Care of Vulnerable Elders) quality indicators for pre-operative staging prior to colectomy for colon cancer utilizing the Surveillance, Epidemiology and End Results (SEER)-Medicare linked database (1992-2005). METHODS We determined the proportion of patients aged 75 and older who had preoperative staging prior to colectomy for colon adenocarcinoma. Preoperative staging was defined as abdominopelvic computed tomography or magnetic resonance imaging scan (SCAN) and colonoscopy or flexible sigmoidoscopy (SCOPE). Multivariate logistic regression identified predictors of adherence. Odds ratios were adjusted for comorbidity, socioeconomic status, and disease severity. The association of adherence to ACOVE-3 and survival was quantified. RESULTS Of the 37,862 patients, the majority were 75-84 years, 28% of the patients were ≥85 years. Regarding preoperative staging in the 6-month interval prior to surgical resection, 8% had neither SCAN nor SCOPE, 6% had only SCAN, 43% had only SCOPE, and 43% had both SCAN and SCOPE. Compared to patients who were not staged, those evaluated with either SCOPE alone or SCAN plus SCOPE had lower odds of 3-year mortality. Patients who were staged with SCAN alone had an increased odds of death compared to those who had neither SCAN or SCOPE. CONCLUSIONS These data demonstrate that the majority of vulnerable elders with colon cancer did not receive appropriate preoperative staging prior to resection. The findings also confirm that adherence to ACOVE-3 guidelines is associated with improved long-term survival.
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Affiliation(s)
- TB Leal
- University of Wisconsin Carbone Cancer Center
- University of Wisconsin Department of Medicine, Section of Hematology/Oncology
| | - T Holden
- University of Wisconsin Department of Medicine, Section of Hematology/Oncology
| | - L Cavalcante
- University of Wisconsin Department of Medicine, Section of Hematology/Oncology
| | - GO Allen
- University of Wisconsin Health Innovation Program
| | | | - MA Smith
- University of Wisconsin Health Innovation Program
| | - JM Weiss
- University of Wisconsin Carbone Cancer Center
- University of Wisconsin Department of Medicine, Section of Division of Gastroenterology and Hepatology
| | - HB Neuman
- University of Wisconsin Department of Surgery
| | - NK LoConte
- University of Wisconsin Carbone Cancer Center
- University of Wisconsin Department of Medicine, Section of Hematology/Oncology
- University of Wisconsin Health Innovation Program
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39
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Scheurmann J, Treiber N, Weber C, Renkl AC, Frenzel D, Trenz-Buback F, Ruess A, Schulz G, Scharffetter-Kochanek K, Weiss JM. Mice with heterozygous deficiency of manganese superoxide dismutase (SOD2) have a skin immune system with features of "inflamm-aging". Arch Dermatol Res 2013; 306:143-55. [PMID: 23856836 DOI: 10.1007/s00403-013-1389-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Revised: 06/24/2013] [Accepted: 06/28/2013] [Indexed: 01/10/2023]
Abstract
Dendritic cells (DC) are central in regulating skin immunity. Immunosenescence is associated with a chronic inflammatory state. Little is known about the contribution of DC to "inflamm-aging". When determining langerhans cell (LC) numbers, we found a 60 % reduction of LC in aged epidermis. Reactive oxygen species(ROS) are linked with aging. The mitochondrial manganese superoxide dismutase (SOD2) is in the first line of antioxidant defense. We investigated the function of DC from SOD2 heterozygous mice (SOD2+/-) and found that at 4 months of age LC numbers are not altered, but activated LC have impaired expression of MHC-II and CD44. Immature SOD2+/- DC produced increased proinflammatory IL-6 and chemokines CXCL1 and CXCL2. Upon challenge SOD2+/- DC accumulated ROS. When activating SOD2+/- DC by LPS they less efficiently upregulated MHC-II, CD86 and CD44. Surprisingly, in vivo contact hypersensitivity (CHS) was enhanced in SOD2+/- mice although SOD2+/- DC were less potent in stimulating wt T cells. However, SOD2+/- T cells showed increased proliferation, even when stimulated with SOD2+/- DC, possibly explaining the increased CHS. Our findings suggest that SOD2 is a molecular candidate in the regulation of "inflamm-aging" conveying both immunosuppressive and proinflammatory signals through alteration of DC and T cell functions.
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Affiliation(s)
- J Scheurmann
- Department of Dermatology and Allergology, University of Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
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Abstract
The hypothalamic decapeptide gonadotrophin-releasing hormone (GnRH) binds to specific receptors on pituitary gonadotrophs. These receptors belong to the family of G protein-coupled receptors. Their activation leads to phosphoinositide breakdown with generation of inositol 1,4,5-trisphosphate (Ins(1,4,5)P3) and diacylglycerol. These second messengers initiate Ca2+ release from intracellular stores and activation of protein kinase C, both of which are important for gonadotrophin secretion and synthesis. Prolonged activation of GnRH receptors by GnRH leads to desensitization and consequently to suppressed gonadotrophin secretion. This is the primary mechanism of action of agonistic GnRH analogues. By contrast, GnRH antagonists compete with GnRH for receptors on gonadotroph cell membranes, inhibit GnRH-induced signal transduction and consequently gonadotrophin secretion. These compounds are free of agonistic actions, which might be beneficial in certain clinical applications.
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Affiliation(s)
- O Ortmann
- Department of Obstetrics and Gynecology, Medical University of Lübeck, 23538 Lübeck, Germany.
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Pipes L, Li S, Bozinoski M, Palermo R, Peng X, Blood P, Kelly S, Weiss JM, Thierry-Mieg J, Thierry-Mieg D, Zumbo P, Chen R, Schroth GP, Mason CE, Katze MG. The non-human primate reference transcriptome resource (NHPRTR) for comparative functional genomics. Nucleic Acids Res 2012. [PMID: 23203872 PMCID: PMC3531109 DOI: 10.1093/nar/gks1268] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
RNA-based next-generation sequencing (RNA-Seq) provides a tremendous amount of new information regarding gene and transcript structure, expression and regulation. This is particularly true for non-coding RNAs where whole transcriptome analyses have revealed that the much of the genome is transcribed and that many non-coding transcripts have widespread functionality. However, uniform resources for raw, cleaned and processed RNA-Seq data are sparse for most organisms and this is especially true for non-human primates (NHPs). Here, we describe a large-scale RNA-Seq data and analysis infrastructure, the NHP reference transcriptome resource (http://nhprtr.org); it presently hosts data from12 species of primates, to be expanded to 15 species/subspecies spanning great apes, old world monkeys, new world monkeys and prosimians. Data are collected for each species using pools of RNA from comparable tissues. We provide data access in advance of its deposition at NCBI, as well as browsable tracks of alignments against the human genome using the UCSC genome browser. This resource will continue to host additional RNA-Seq data, alignments and assemblies as they are generated over the coming years and provide a key resource for the annotation of NHP genomes as well as informing primate studies on evolution, reproduction, infection, immunity and pharmacology.
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Affiliation(s)
- Lenore Pipes
- Department of Physiology and Biophysics, Weill Cornell Medical College, New York, NY 10065, USA
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Adelman JS, Kalkut GE, Schechter CB, Weiss JM, Berger MA, Reissman SH, Cohen HW, Lorenzen SJ, Burack DA, Southern WN. Understanding and preventing wrong-patient electronic orders: a randomized controlled trial. J Am Med Inform Assoc 2012; 20:305-10. [PMID: 22753810 DOI: 10.1136/amiajnl-2012-001055] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE To evaluate systems for estimating and preventing wrong-patient electronic orders in computerized physician order entry systems with a two-phase study. MATERIALS AND METHODS In phase 1, from May to August 2010, the effectiveness of a 'retract-and-reorder' measurement tool was assessed that identified orders placed on a patient, promptly retracted, and then reordered by the same provider on a different patient as a marker for wrong-patient electronic orders. This tool was then used to estimate the frequency of wrong-patient electronic orders in four hospitals in 2009. In phase 2, from December 2010 to June 2011, a three-armed randomized controlled trial was conducted to evaluate the efficacy of two distinct interventions aimed at preventing these errors by reverifying patient identification: an 'ID-verify alert', and an 'ID-reentry function'. RESULTS The retract-and-reorder measurement tool effectively identified 170 of 223 events as wrong-patient electronic orders, resulting in a positive predictive value of 76.2% (95% CI 70.6% to 81.9%). Using this tool it was estimated that 5246 electronic orders were placed on wrong patients in 2009. In phase 2, 901 776 ordering sessions among 4028 providers were examined. Compared with control, the ID-verify alert reduced the odds of a retract-and-reorder event (OR 0.84, 95% CI 0.72 to 0.98), but the ID-reentry function reduced the odds by a larger magnitude (OR 0.60, 95% CI 0.50 to 0.71). DISCUSSION AND CONCLUSION Wrong-patient electronic orders occur frequently with computerized provider order entry systems, and electronic interventions can reduce the risk of these errors occurring.
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Affiliation(s)
- Jason S Adelman
- Departments of Medicine, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, NY 10467, USA.
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Navare AT, Sova P, Purdy DE, Weiss JM, Wolf-Yadlin A, Korth MJ, Chang ST, Proll SC, Jahan TA, Krasnoselsky AL, Palermo RE, Katze MG. Quantitative proteomic analysis of HIV-1 infected CD4+ T cells reveals an early host response in important biological pathways: protein synthesis, cell proliferation, and T-cell activation. Virology 2012; 429:37-46. [PMID: 22542004 DOI: 10.1016/j.virol.2012.03.026] [Citation(s) in RCA: 34] [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] [Subscribe] [Scholar Register] [Received: 01/01/2012] [Revised: 02/07/2012] [Accepted: 03/30/2012] [Indexed: 10/28/2022]
Abstract
Human immunodeficiency virus (HIV-1) depends upon host-encoded proteins to facilitate its replication while at the same time inhibiting critical components of innate and/or intrinsic immune response pathways. To characterize the host cell response on protein levels in CD4+ lymphoblastoid SUP-T1 cells after infection with HIV-1 strain LAI, we used mass spectrometry (MS)-based global quantitation with iTRAQ (isobaric tag for relative and absolute quantification). We found 266, 60 and 22 proteins differentially expressed (DE) (P-value ≤ 0.05) at 4, 8, and 20 hours post-infection (hpi), respectively, compared to time-matched mock-infected samples. The majority of changes in protein abundance occurred at an early stage of infection well before the de novo production of viral proteins. Functional analyses of these DE proteins showed enrichment in several biological pathways including protein synthesis, cell proliferation, and T-cell activation. Importantly, these early changes before the time of robust viral production have not been described before.
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Affiliation(s)
- Arti T Navare
- Department of Microbiology, University of Washington, Seattle, WA 98195-8070, USA
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Hancke K, Hay B, Kreienberg R, Reister F, Weiss JM. Übergewicht in der Schwangerschaft beeinträchtigt das mütterliche und kindliche Outcome. Z Geburtshilfe Neonatol 2011. [DOI: 10.1055/s-0031-1293254] [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: 10/15/2022]
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Isachenko V, Isachenko E, Kreienberg R, Woriedh M, Weiss JM. Human ovarian tissue cryopreservation: quality of follicles as a criteria of effectiveness. Reprod Biomed Online 2010; 20:441-2. [DOI: 10.1016/j.rbmo.2010.01.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2009] [Revised: 09/24/2009] [Accepted: 12/09/2009] [Indexed: 11/29/2022]
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Isachenko V, Lapidus I, Isachenko E, Krivokharchenko A, Kreienberg R, Woriedh M, Bader M, Weiss JM. Human ovarian tissue vitrification versus conventional freezing: morphological, endocrinological, and molecular biological evaluation. Reproduction 2009; 138:319-27. [DOI: 10.1530/rep-09-0039] [Citation(s) in RCA: 121] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Cryopreservation as a process can be divided into two methods: conventional freezing and vitrification. The high effectiveness of vitrification in comparison with conventional freezing for human oocytes and embryos is shown, whereas data on human ovarian tissue are limited. The aim of this study was to compare the safety and effectiveness of conventional freezing and vitrification of human ovarian tissue. Ovarian tissue fragments from 15 patients were transported to the laboratory within 22–25 h in a special, isolated transport box that can maintain a stable temperature of between 5 and 8 °C for 36 h. Small pieces of ovarian tissue (0.3–1×1–1.5×0.7–1 mm) were randomly distributed into three groups: group 1, fresh pieces immediately after receiving transport box (control); group 2, pieces after vitrification; and group 3, pieces after conventional freezing. After thawing, all the pieces were culturedin vitro. The viability and proliferative capacity of the tissue byin vitroproduction of hormones, development of follicles, and glyceraldehyde 3-phosphate dehydrogenase (GAPDH) gene expression after culture were evaluated. A difference between freezing and vitrification was not found in respect to hormonal activity and follicle quality. The supernatants showed 17-β estradiol concentrations of 365, 285, and 300 pg/ml respectively, and progesterone concentrations of 3.82, 1.99, and 1.95 ng/ml respectively. It was detected that 95, 80, and 83% follicles respectively were morphologically normal. The molecular biological analysis, however, demonstrated that theGAPDHgene expression in ovarian tissue after vitrification was dramatically decreased in contrast to conventional freezing. For cryopreservation of human ovarian tissue, conventional freezing is more promising than vitrification, because of higher developmental potential.
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Weiss JM, Polack S, Kreienberg R, Diedrich K. Effekte von Testosteron auf die Exozytose gonadotroper Zellen. Geburtshilfe Frauenheilkd 2008. [DOI: 10.1055/s-0028-1088877] [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] Open
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Isachenko E, Isachenko V, Kreienberg R, Weiss JM. Vergleich verschiedener Protokolle für die Vitrifikation von menschlichem Eierstocksgewebe. Geburtshilfe Frauenheilkd 2008. [DOI: 10.1055/s-0028-1089176] [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] Open
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Isachenko V, Isachenko E, Kreienberg R, Weiss JM. Kryobanking von Ovarialgewebe: Konzept und Perspektive. Geburtshilfe Frauenheilkd 2008. [DOI: 10.1055/s-0028-1089172] [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] Open
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