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Peltier S, Adib Y, Nicosia L, Ly Ka So S, Da Silva C, Serror K, Duciel L, Proust R, Mimoun M, Bagot M, Bensussan A, des Courtils C, Michel L. In vitro effects of wound-dressings on key wound healing properties of dermal fibroblasts. Exp Dermatol 2024; 33:e15098. [PMID: 38770557 DOI: 10.1111/exd.15098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 04/02/2024] [Accepted: 04/28/2024] [Indexed: 05/22/2024]
Abstract
Healing of complex wounds requires dressings that must, at least, not hinder and should ideally promote the activity of key healing cells, in particular fibroblasts. This in vitro study assessed the effects of three wound-dressings (a pure Ca2+ alginate: Algostéril®, a Ca2+ alginate + carboxymethylcellulose: Biatain alginate® and a polyacrylate impregnated with lipido-colloid matrix: UrgoClean®) on dermal fibroblast activity. The results showed the pure calcium alginate to be non-cytotoxic, whereas the other wound-dressings showed moderate to strong cytotoxicity. The two alginates stimulated fibroblast migration and proliferation, whereas the polyacrylate altered migration and had no effect on proliferation. The pure Ca2+ alginate significantly increased the TGF-β-induced fibroblast activation, which is essential to healing. This activation was confirmed by a significant increase in Vascular endothelial growth factor (VEGF) secretion and a higher collagen production. The other dressings reduced these fibroblast activities. The pure Ca2+ alginate was also able to counteract the inhibitory effect of NK cell supernatants on fibroblast migration. These in vitro results demonstrate that tested wound-dressings are not equivalent for fibroblast activation. Only Algostéril was found to promote all the fibroblast activities tested, which could contribute to its healing efficacy demonstrated in the clinic.
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Affiliation(s)
- S Peltier
- Inserm UMRS_976, Hôpital Saint-Louis, Paris, France
- Université Paris Cité, Paris, France
| | - Y Adib
- Inserm UMRS_976, Hôpital Saint-Louis, Paris, France
- Université Paris Cité, Paris, France
| | - L Nicosia
- Inserm UMRS_976, Hôpital Saint-Louis, Paris, France
- Université Paris Cité, Paris, France
| | - S Ly Ka So
- Inserm UMRS_976, Hôpital Saint-Louis, Paris, France
| | - C Da Silva
- Inserm UMRS_976, Hôpital Saint-Louis, Paris, France
| | - K Serror
- Inserm UMRS_976, Hôpital Saint-Louis, Paris, France
- Université Paris Cité, Paris, France
- Service de Chirurgie plastique, reconstructive et esthétique, APHP, Hôpital Saint-Louis, Paris, France
| | - L Duciel
- Laboratoires Brothier, Nanterre, France
| | - R Proust
- Laboratoires Brothier, Nanterre, France
| | - M Mimoun
- Inserm UMRS_976, Hôpital Saint-Louis, Paris, France
- Université Paris Cité, Paris, France
- Service de Chirurgie plastique, reconstructive et esthétique, APHP, Hôpital Saint-Louis, Paris, France
| | - M Bagot
- Inserm UMRS_976, Hôpital Saint-Louis, Paris, France
- Université Paris Cité, Paris, France
- Service de Dermatologie, APHP, Hôpital Saint Louis, Paris, France
| | - A Bensussan
- Inserm UMRS_976, Hôpital Saint-Louis, Paris, France
- Université Paris Cité, Paris, France
| | | | - Laurence Michel
- Inserm UMRS_976, Hôpital Saint-Louis, Paris, France
- Université Paris Cité, Paris, France
- Service de Dermatologie, APHP, Hôpital Saint Louis, Paris, France
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Blain SD, Taylor SF, Lasagna CA, Angstadt M, Rutherford SE, Peltier S, Diwadkar VA, Tso IF. Aberrant Effective Connectivity During Eye Gaze Processing Is Linked to Social Functioning and Symptoms in Schizophrenia. Biol Psychiatry Cogn Neurosci Neuroimaging 2023; 8:1228-1239. [PMID: 37648206 PMCID: PMC10840731 DOI: 10.1016/j.bpsc.2023.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 08/02/2023] [Accepted: 08/19/2023] [Indexed: 09/01/2023]
Abstract
BACKGROUND Patients with schizophrenia show abnormal gaze processing, which is associated with social dysfunction. These abnormalities are related to aberrant connectivity among brain regions that are associated with visual processing, social cognition, and cognitive control. In this study, we investigated 1) how effective connectivity during gaze processing is disrupted in schizophrenia and 2) how this may contribute to social dysfunction and clinical symptoms. METHODS Thirty-nine patients with schizophrenia/schizoaffective disorder (SZ) and 33 healthy control participants completed an eye gaze processing task during functional magnetic resonance imaging. Participants viewed faces with different gaze angles and performed explicit and implicit gaze processing. Four brain regions-the secondary visual cortex, posterior superior temporal sulcus, inferior parietal lobule, and posterior medial frontal cortex-were identified as nodes for dynamic causal modeling analysis. RESULTS Both the SZ and healthy control groups showed similar model structures for general gaze processing. Explicit gaze discrimination led to changes in effective connectivity, including stronger excitatory, bottom-up connections from the secondary visual cortex to the posterior superior temporal sulcus and inferior parietal lobule and inhibitory, top-down connections from the posterior medial frontal cortex to the secondary visual cortex. Group differences in top-down modulation from the posterior medial frontal cortex to the posterior superior temporal sulcus and inferior parietal lobule were noted, such that these inhibitory connections were attenuated in the healthy control group but further strengthened in the SZ group. Connectivity was associated with social dysfunction and symptom severity. CONCLUSIONS The SZ group showed notably stronger top-down inhibition during explicit gaze discrimination, which was associated with more social dysfunction but less severe symptoms among patients. These findings help pinpoint neural mechanisms of aberrant gaze processing and may serve as future targets for interventions that combine neuromodulation with social cognitive training.
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Affiliation(s)
- Scott D Blain
- Department of Psychiatry & Behavioral Health, The Ohio State University, Columbus, Ohio; Department of Psychiatry, University of Michigan, Ann Arbor, Michigan.
| | - Stephan F Taylor
- Department of Psychiatry, University of Michigan, Ann Arbor, Michigan; Department of Psychology, University of Michigan, Ann Arbor, Michigan
| | - Carly A Lasagna
- Department of Psychology, University of Michigan, Ann Arbor, Michigan
| | - Mike Angstadt
- Department of Psychiatry, University of Michigan, Ann Arbor, Michigan
| | - Saige E Rutherford
- Department of Psychiatry, University of Michigan, Ann Arbor, Michigan; Predictive Clinical Neuroscience Lab, Donders Center for Medical Neuroscience, Nijmegen, the Netherlands
| | - Scott Peltier
- Functional MRI Laboratory, University of Michigan, Ann Arbor, Michigan
| | - Vaibhav A Diwadkar
- Department of Psychiatry & Behavioral Neurosciences, Wayne State University, Detroit, Michigan
| | - Ivy F Tso
- Department of Psychiatry & Behavioral Health, The Ohio State University, Columbus, Ohio; Department of Psychiatry, University of Michigan, Ann Arbor, Michigan
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de Ruiter MB, Deardorff RL, Blommaert J, Chen BT, Dumas JA, Schagen SB, Sunaert S, Wang L, Cimprich B, Peltier S, Dittus K, Newhouse PA, Silverman DH, Schroyen G, Deprez S, Saykin AJ, McDonald BC. Brain gray matter reduction and premature brain aging after breast cancer chemotherapy: a longitudinal multicenter data pooling analysis. Brain Imaging Behav 2023; 17:507-518. [PMID: 37256494 PMCID: PMC10652222 DOI: 10.1007/s11682-023-00781-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/29/2023] [Indexed: 06/01/2023]
Abstract
Brain gray matter (GM) reductions have been reported after breast cancer chemotherapy, typically in small and/or cross-sectional cohorts, most commonly using voxel-based morphometry (VBM). There has been little examination of approaches such as deformation-based morphometry (DBM), machine-learning-based brain aging metrics, or the relationship of clinical and demographic risk factors to GM reduction. This international data pooling study begins to address these questions. Participants included breast cancer patients treated with (CT+, n = 183) and without (CT-, n = 155) chemotherapy and noncancer controls (NC, n = 145), scanned pre- and post-chemotherapy or comparable intervals. VBM and DBM examined GM volume. Estimated brain aging was compared to chronological aging. Correlation analyses examined associations between VBM, DBM, and brain age, and between neuroimaging outcomes, baseline age, and time since chemotherapy completion. CT+ showed longitudinal GM volume reductions, primarily in frontal regions, with a broader spatial extent on DBM than VBM. CT- showed smaller clusters of GM reduction using both methods. Predicted brain aging was significantly greater in CT+ than NC, and older baseline age correlated with greater brain aging. Time since chemotherapy negatively correlated with brain aging and annual GM loss. This large-scale data pooling analysis confirmed findings of frontal lobe GM reduction after breast cancer chemotherapy. Milder changes were evident in patients not receiving chemotherapy. CT+ also demonstrated premature brain aging relative to NC, particularly at older age, but showed evidence for at least partial GM recovery over time. When validated in future studies, such knowledge could assist in weighing the risks and benefits of treatment strategies.
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Affiliation(s)
- Michiel B de Ruiter
- Psychosocial Research and Epidemiology, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Rachael L Deardorff
- Center for Neuroimaging, Department of Radiology and Imaging Sciences, Indiana University Melvin and Bren Simon Comprehensive Cancer Center, and Indiana Alzheimer's Disease Research Center, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Jeroen Blommaert
- Department of Oncology, KU Leuven, Leuven, Belgium and Research Foundation Flanders (FWO), Brussels, Belgium
| | - Bihong T Chen
- City of Hope National Medical Center, Duarte, CA, USA
| | | | - Sanne B Schagen
- Psychosocial Research and Epidemiology, Netherlands Cancer Institute, Amsterdam, Netherlands
- Department of Psychology, University of Amsterdam, Amsterdam, The Netherlands
| | - Stefan Sunaert
- Department of Imaging and Pathology, KU Leuven, Leuven, Belgium
- Department of Radiology, University Hospitals Leuven, Leuven, Belgium
| | - Lei Wang
- Wexner Medical Center, Ohio State University, Columbus, OH, USA
| | | | | | - Kim Dittus
- University of Vermont Cancer Center, University of Vermont, Burlington, VT, USA
| | - Paul A Newhouse
- Center for Cognitive Medicine, Vanderbilt University Medical Center and Geriatric Research Educational and Clinical Center, Tennessee Valley VA Health System, Nashville, TN, USA
| | | | - Gwen Schroyen
- Department of Imaging and Pathology, KU Leuven, Leuven, Belgium
- Leuven Cancer Institute, KU Leuven, Leuven, Belgium
| | - Sabine Deprez
- Department of Imaging and Pathology, KU Leuven, Leuven, Belgium
- Leuven Cancer Institute, KU Leuven, Leuven, Belgium
| | - Andrew J Saykin
- Center for Neuroimaging, Department of Radiology and Imaging Sciences, Indiana University Melvin and Bren Simon Comprehensive Cancer Center, and Indiana Alzheimer's Disease Research Center, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Brenna C McDonald
- Center for Neuroimaging, Department of Radiology and Imaging Sciences, Indiana University Melvin and Bren Simon Comprehensive Cancer Center, and Indiana Alzheimer's Disease Research Center, Indiana University School of Medicine, Indianapolis, IN, USA.
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Blain SD, Taylor SF, Rutherford SE, Lasagna CA, Yao B, Angstadt M, Green MF, Johnson TD, Peltier S, Diwadkar VA, Tso IF. Neurobehavioral indices of gaze perception are associated with social cognition across schizophrenia patients and healthy controls. J Psychopathol Clin Sci 2023; 132:733-748. [PMID: 37384487 PMCID: PMC10513759 DOI: 10.1037/abn0000846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
BACKGROUND Gaze perception is a basic building block of social cognition, which is impaired in schizophrenia (SZ) and contributes to functional outcomes. Few studies, however, have investigated neural underpinnings of gaze perception and their relation to social cognition. We address this gap. METHOD We recruited 77 SZ patients and 71 healthy controls, who completed various social-cognition tasks. During functional magnetic resonance imaging, participants (62 SZ, 54 controls) completed a gaze-perception task, where they judged whether faces with varying gaze angles were self-directed or averted; as a control condition, participants identified stimulus gender. Activation estimates were extracted based on (a) task versus baseline, (b) gaze-perception versus gender-identification, (c) parametric modulation by perception of stimuli as self-directed versus averted, and (d) parametric modulation by stimulus gaze angle. We used latent variable analysis to test associations among diagnostic group, brain activation, gaze perception, and social cognition. RESULTS Preferential activation to gaze perception was observed throughout dorsomedial prefrontal cortex, superior temporal sulcus, and insula. Activation was modulated by stimulus gaze angle and perception of stimuli as self-directed versus averted. More precise gaze perception and higher task-related activation were associated with better social cognition. Patients with SZ showed hyperactivation within left pre-/postcentral gyrus, which was associated with more precise gaze perception and fewer symptoms and thus may be a compensatory mechanism. CONCLUSIONS Neural and behavioral indices of gaze perception were related to social cognition, across patients and controls. This suggests gaze perception is an important perceptual building block for more complex social cognition. Results are discussed in the context of dimensional psychopathology and clinical heterogeneity. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
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Affiliation(s)
- Scott D. Blain
- Department of Psychiatry, University of Michigan, Ann Arbor, MI
- Department of Psychiatry & Behavioral Health, The Ohio State University, Columbus, OH
| | - Stephan F. Taylor
- Department of Psychiatry, University of Michigan, Ann Arbor, MI
- Department of Psychology, University of Michigan, Ann Arbor, MI
| | - Saige E. Rutherford
- Department of Psychiatry, University of Michigan, Ann Arbor, MI
- Donders Center for Medical Neuroscience, Nijmegen, Netherlands
| | | | - Beier Yao
- Schizophrenia and Bipolar Disorder Program, McLean Hospital, Belmont, MA; Department of Psychiatry, Harvard Medical School, Boston, MA
| | - Mike Angstadt
- Functional MRI Lab, University of Michigan, Ann Arbor, MI
| | - Michael F. Green
- Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, CA
- Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA
| | | | - Scott Peltier
- Functional MRI Lab, University of Michigan, Ann Arbor, MI
| | - Vaibhav A. Diwadkar
- Department of Psychiatry & Behavioral Neurosciences, Wayne State University, Detroit, MI
| | - Ivy F. Tso
- Department of Psychiatry, University of Michigan, Ann Arbor, MI
- Department of Psychiatry & Behavioral Health, The Ohio State University, Columbus, OH
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5
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Yao B, Gu P, Lasagna CA, Peltier S, Taylor SF, Tso IF, Thakkar KN. Structural connectivity of an interoception network in schizophrenia. Psychiatry Res Neuroimaging 2023; 331:111636. [PMID: 37001298 PMCID: PMC10133183 DOI: 10.1016/j.pscychresns.2023.111636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 03/21/2023] [Accepted: 03/25/2023] [Indexed: 04/08/2023]
Abstract
Interoception refers to the processing, integration, and interpretation of bodily signals by the brain. Interoception is key to not only basic survival, but also motivational and affective functioning. There is emerging evidence suggesting altered interoception in schizophrenia, but few studies have explored potential neural underpinnings. The current study aims to investigate the anatomical connectivity of a previously identified interoception network in individuals with schizophrenia, and the relationship between network structural connectivity and both emotional functioning and clinical symptoms. Thirty-five participants with schizophrenia (SZ) and 36 healthy control participants (HC) underwent diffusion tensor imaging (DTI) and performed tasks measuring emotional functioning. Probabilistic tractography was used to identify white matter tracts connecting key hubs in an interoception network. Microstructural integrity of these tracts was compared across groups and correlated with measures of emotional functioning and symptom severity. Compared with HC, SZ exhibited altered structural connectivity in the interoception network. In HC, the structural connectivity of the network was significantly correlated with emotion recognition, supporting a link between the interoception network and emotional functioning. However, this correlation was much weaker in SZ. These findings suggest that altered interoception may have implications for illness mechanisms of schizophrenia, especially in relation to emotional deficits.
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Affiliation(s)
- Beier Yao
- Schizophrenia and Bipolar Disorder Program, McLean Hospital, Belmont, MA, USA; Department of Psychiatry, Harvard Medical School, Boston, MA, USA.
| | - Pan Gu
- Department of Neuroscience, University of Texas at Dallas, Richardson, TX, USA
| | - Carly A Lasagna
- Department of Psychology, University of Michigan, Ann Arbor, MI, USA
| | - Scott Peltier
- Functional MRI Laboratory, University of Michigan, Ann Arbor, MI, USA; Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - Stephan F Taylor
- Department of Psychology, University of Michigan, Ann Arbor, MI, USA; Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - Ivy F Tso
- Department of Psychiatry & Behavioral Health, Ohio State University, Columbus, OH, USA
| | - Katharine N Thakkar
- Department of Psychology, Michigan State University, East Lansing, MI, USA; Division of Psychiatry and Behavioral Medicine, Michigan State University, Grand Rapids, MI, USA
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Hampstead BM, Iordan A, Peltier S, Ploutz‐Snyder R. Transcranial direct current stimulation (tDCS) in cognitively symptomatic older adults. Alzheimers Dement 2022. [DOI: 10.1002/alz.067610] [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: 12/24/2022]
Affiliation(s)
- Benjamin M. Hampstead
- Research Program on Cognition & Neuromodulation Based Interventions, University of Michigan Ann Arbor MI USA
- VA Ann Arbor Healthcare System Ann Arbor MI USA
- University of Michigan Ann Arbor MI USA
| | | | - Scott Peltier
- University of Michigan Ann Arbor MI USA
- Michigan Alzheimer’s Disease Research Center Ann Arbor MI USA
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Bender AR, Dubois KN, Grabinski T, Peltier S, Giordani B, Paulson HL, Kanaan NM, Hampstead BM. Plasma phospho‐tau predicts differences in white matter microstructural complexity and cognition in non‐demented older adults. Alzheimers Dement 2022. [DOI: 10.1002/alz.064157] [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: 12/24/2022]
Affiliation(s)
- Andrew R. Bender
- Michigan Alzheimer's Disease Research Center Ann Arbor MI USA
- Michigan State University East Lansing MI USA
| | - Kelly N. Dubois
- Michigan Alzheimer's Disease Research Center Ann Arbor MI USA
- Michigan State University Grand Rapids MI USA
| | - Tessa Grabinski
- Michigan Alzheimer's Disease Research Center Ann Arbor MI USA
- Michigan State University Grand Rapids MI USA
| | - Scott Peltier
- Michigan Alzheimer's Disease Research Center Ann Arbor MI USA
- University of Michigan Ann Arbor MI USA
| | - Bruno Giordani
- Michigan Alzheimer's Disease Research Center Ann Arbor MI USA
- University of Michigan Ann Arbor MI USA
| | - Henry L. Paulson
- Michigan Alzheimer's Disease Research Center Ann Arbor MI USA
- University of Michigan Ann Arbor MI USA
| | - Nicholas M Kanaan
- Michigan Alzheimer's Disease Research Center Ann Arbor MI USA
- Michigan State University Grand Rapids MI USA
| | - Benjamin M. Hampstead
- Michigan Alzheimer's Disease Research Center Ann Arbor MI USA
- University of Michigan Ann Arbor MI USA
- VA Ann Arbor Healthcare System Ann Arbor MI USA
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Pruitt PJ, Lahna D, Schwartz DL, Peltier S, Silbert LC, Dodge HH. Social engagement intervention increases dorsal attention network functional connectivity in socially‐isolated older‐old adults: I‐CONECT. Alzheimers Dement 2022. [DOI: 10.1002/alz.059653] [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: 12/24/2022]
Affiliation(s)
| | - David Lahna
- Oregon Health & Science University Portland OR USA
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Ripoche D, Michaux A, Pialoux V, Vallier M, Langhi C, Chavanelle V, Otero YF, Peltier S, Sirvent P. Totum-854 reduction of blood pressure is associated with tissue remodeling in aorta and heart of SHR rat. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction and purpose
Arterial Hypertension (AHT) is a major cause of premature death worldwide. We have developed Totum-854 (T-854), a polyphenol-rich botanical composition to reduce the risk of developing AHT. We assessed the acute and chronic effects on blood pressure in spontaneous hypertensive rats (SHR).
Method
Acute protocol: 12-week-old SHR rats received randomly in a cross-over design, a dose of vehicle (VEH, 1% Tween 20), Captopril (50mg/kg) and T-854 (1250mg/kg) per os with at least 48h-wash-out interval between two gavages. Arterial pressure was recorded during 24h post-gavage, thanks to a radio-telemetry device (HD-S10, DSI) directly into the abdominal aorta. Baseline arterial pressure was measured before oral gavage during 90 min.
Chronic study
18-week-old SHR rats received vehicle (VEH, 1% Tween 20) or T-854 (1000mg/kg) per os once a day for 8 weeks. Arterial pressure was recorded before the oral gavage for 90 min once a week with a radio-telemetry device (HD-S10, DSI). Delta (Δ) SBP and ΔDBP were calculated by subtracting baseline blood pressure (before the start of oral gavage) to measured blood pressure every week. At the end of supplementation, rats were euthanized, and aorta and heart were sampled. Aorta was embedded in paraffin and Masson's trichrome staining was performed in slides obtained by a microtome. Media thickness was measured with ImageJ. For the heart, mRNA was extracted using Trizol and cardiac hypertrophy/fibrosis gene expression was evaluated by RT-qPCR.
Results
Acute supplementation with T-854 exhibited an intermediate profile between VEH and Captopril response for change in SBP and DBP curves. SBP and DBP were reduced in comparison to VEH with 24h-AUC decreased by 93.6±67.8 mmHg h and 70.8±54.6 mmHg h for captopril and T-854, respectively.
When T-854 was administered chronically during 8 weeks, ΔSBP and ΔDBP evolution were significantly different in comparison to VEH group (p<0.05). These curves were maintained under vehicle curves from the 2nd week of supplementation and until the end of the study. After 8 weeks of T-854 supplementation, tissue analysis showed a decrease of 10% on the aorta media thickness in T-854 supplemented rats (p<0.05). Cardiac MMP-2 gene expression was also lower in T-854 group compared to VEH (p=0.059).
Conclusion
T-854 24h-post-gavage acute effect on blood pressure in hypertensive SHR rats suggests a rapid effect, with a decrease in blood pressure few hours after oral administration. Moreover, chronic T-854 supplementation prevents AHT development in SHR. In conclusion, T-854 appears as an efficient strategy to prevent HTA suggesting also a protective role of T-854 on vascular and heart structure and function.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
| | | | - V Pialoux
- University Claude Bernard of Lyon, LIBM EA7424, Team ATPA , Lyon , France
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Langhi C, Otero YF, Le Joubioux F, Guigas B, Peltier S, Sirvent P. Totum-070 prevents diet-induced hypercholesterolemia in western diet fed mice and inhibits cholesterol uptake in human enterocyte caco2 cell line. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.3072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
It is well known that hypercholesterolemia is an important modifiable risk factor in the development of cardiovascular diseases. Lowering blood cholesterol level reduces the incidence of atherosclerotic disease. Totum-070 (T070) is a clinical stage polyphenol-rich active substance composed by the association of 5 plant extracts.
Purpose
We assessed the hypothesis that administration of T070 prevents hypercholesterolemia in western diet fed mice and explored the potential mechanisms involved in vitro in human enterocytes.
Methods
C57BL/6 mice were fed either a normal diet (ND) or western diet (WD) for 6 weeks and received either vehicle or T070 (1mg/kg or 3mg/kg) daily by gavage (n=14 mice per group). Food intake, body weight and plasma lipid were monitored along study duration. Liver and feces lipid content were quantified at the end of the study. For in vitro studies, human Caco2 cells were differentiated in transwells for 21 days. To perform cholesterol uptake assay, [1,2-3H(N)]-cholesterol was incubated in apical medium for 1 hour in presence or not of T070 prior to quantification of radioactivity in the cells.
Results
In mice, supplementation with T070 had no effect on food intake during the study. At the end of the in vivo study, body weight in WD-fed mice was increased to 28.3±0.8 g compared to the ND group (24.5±0.4 g, p<0.001). Interestingly, a significant (p<0.01) 29% reduction in body weight gain was observed in the T070 3mg/kg group compared to the WD group at the end of the study. Compared to WD group, total-cholesterol in mice supplemented by T070 was reduced in a dose dependent manner (298±8 mg/dl WD vs 276±9 mg/dl T070 1mg/kg, p=0.19, and 265±8 mg/dl T070 3mg/kg, p<0.05). Furthermore, hepatic steatosis induced by the WD was reduced by 73% (p<0.001) in the T070 3mg/kg group. Hepatic and intestinal gene expression were drastically altered by WD feeding compared to ND, while supplementation with T070 tended to restore normal expression levels for many genes implicated in lipid and lipoprotein metabolism. A significant increase in fecal cholesterol excretion was observed in mice supplemented with T070 3 mg/g compared to the mice fed with WD alone (442.3±151.7 nmol/day WD + T070 3mg/g vs 75.4±5.9 nmol/day WD, p<0.05). Studies in human enterocytes demonstrated that 1 g/l T070 reduced cholesterol uptake by 35% (p<0.001), suggesting that T070 inhibits intestinal cholesterol absorption.
Conclusion
Our results show the beneficial effect of supplementation with Totum-070 to prevent induction of hypercholesterolemia in a nutritional mouse model. Investigation of mechanisms of action in enterocytes demonstrate the role of Totum-070 to inhibit intestinal cholesterol absorption. These results highlight the interest of using Totum-070 for the management of hypercholesterolemia.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
| | | | | | - B Guigas
- Leiden University Medical Center , Leiden , The Netherlands
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Langhi C, Otero Y, Le Joubioux F, Guigas B, Peltier S, Sirvent P. TOTUM-070 prevents diet-induced hyperlipidemia in high fat high cholesterol fed hamsters. Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Iordan A, Ryan S, Tyszkowski T, Peltier S, Rahman-Filipiak A, Hampstead B. High-definition transcranial direct current stimulation enhances network segregation during spatial navigation in mild cognitive impairment. Brain Stimul 2021. [DOI: 10.1016/j.brs.2021.10.211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Adib Y, Peltier S, Duciel L, Proust R, Courtils CD, Bensussan A, Michel L. 366 Role of calcium ions released by a calcium alginate dressing on NK cell activation. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.08.375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Deelchand DK, Berrington A, Noeske R, Joers JM, Arani A, Gillen J, Schär M, Nielsen JF, Peltier S, Seraji-Bozorgzad N, Landheer K, Juchem C, Soher BJ, Noll DC, Kantarci K, Ratai EM, Mareci TH, Barker PB, Öz G. Across-vendor standardization of semi-LASER for single-voxel MRS at 3T. NMR Biomed 2021; 34:e4218. [PMID: 31854045 PMCID: PMC7299834 DOI: 10.1002/nbm.4218] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 10/18/2019] [Accepted: 10/21/2019] [Indexed: 05/23/2023]
Abstract
The semi-adiabatic localization by adiabatic selective refocusing (sLASER) sequence provides single-shot full intensity signal with clean localization and minimal chemical shift displacement error and was recommended by the international MRS Consensus Group as the preferred localization sequence at high- and ultra-high fields. Across-vendor standardization of the sLASER sequence at 3 tesla has been challenging due to the B1 requirements of the adiabatic inversion pulses and maximum B1 limitations on some platforms. The aims of this study were to design a short-echo sLASER sequence that can be executed within a B1 limit of 15 μT by taking advantage of gradient-modulated RF pulses, to implement it on three major platforms and to evaluate the between-vendor reproducibility of its perfomance with phantoms and in vivo. In addition, voxel-based first and second order B0 shimming and voxel-based B1 adjustments of RF pulses were implemented on all platforms. Amongst the gradient-modulated pulses considered (GOIA, FOCI and BASSI), GOIA-WURST was identified as the optimal refocusing pulse that provides good voxel selection within a maximum B1 of 15 μT based on localization efficiency, contamination error and ripple artifacts of the inversion profile. An sLASER sequence (30 ms echo time) that incorporates VAPOR water suppression and 3D outer volume suppression was implemented with identical parameters (RF pulse type and duration, spoiler gradients and inter-pulse delays) on GE, Philips and Siemens and generated identical spectra on the GE 'Braino' phantom between vendors. High-quality spectra were consistently obtained in multiple regions (cerebellar white matter, hippocampus, pons, posterior cingulate cortex and putamen) in the human brain across vendors (5 subjects scanned per vendor per region; mean signal-to-noise ratio > 33; mean water linewidth between 6.5 Hz to 11.4 Hz). The harmonized sLASER protocol is expected to produce high reproducibility of MRS across sites thereby allowing large multi-site studies with clinical cohorts.
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Affiliation(s)
- Dinesh K Deelchand
- Center for Magnetic Resonance Research, Department of Radiology, University of Minnesota, Minneapolis, MN, USA
| | - Adam Berrington
- The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University, Baltimore, MD, USA
- Sir Peter Mansfield Imaging Centre, School of Physics and Astronomy, University of Nottingham, Nottingham, UK
| | | | - James M Joers
- Center for Magnetic Resonance Research, Department of Radiology, University of Minnesota, Minneapolis, MN, USA
| | - Arvin Arani
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
| | - Joseph Gillen
- The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University, Baltimore, MD, USA
| | - Michael Schär
- The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University, Baltimore, MD, USA
| | | | - Scott Peltier
- Department of Biomedical Engineering, University of Michigan, MI, USA
| | | | - Karl Landheer
- Departments of Biomedical Engineering and Radiology, Columbia University, New York, NY, USA
| | - Christoph Juchem
- Departments of Biomedical Engineering and Radiology, Columbia University, New York, NY, USA
| | - Brian J Soher
- Center for Advanced Magnetic Resonance Development, Duke University Medical Center, Durham, NC, USA
| | - Douglas C Noll
- Department of Biomedical Engineering, University of Michigan, MI, USA
| | - Kejal Kantarci
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
| | - Eva M Ratai
- Department of Radiology, Massachusetts General Hospital, Athinoula A. Martinos Center for Biomedical Imaging, Harvard Medical School, Boston, MA, USA
| | - Thomas H Mareci
- Department of Biochemistry and Molecular Biology, University of Florida, Gainesville, FL, USA
| | - Peter B Barker
- The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University, Baltimore, MD, USA
- The Kennedy Krieger Institute, Baltimore, MD, USA
| | - Gülin Öz
- Center for Magnetic Resonance Research, Department of Radiology, University of Minnesota, Minneapolis, MN, USA
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15
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Tso IF, Angstadt M, Rutherford S, Peltier S, Diwadkar VA, Taylor SF. Dynamic causal modeling of eye gaze processing in schizophrenia. Schizophr Res 2021; 229:112-121. [PMID: 33229223 PMCID: PMC8324063 DOI: 10.1016/j.schres.2020.11.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 09/16/2020] [Accepted: 11/12/2020] [Indexed: 11/15/2022]
Abstract
BACKGROUND Abnormal eye gaze perception is related to symptoms and social functioning in schizophrenia. However, little is known about the brain network mechanisms underlying these abnormalities. Here, we employed dynamic causal modeling (DCM) of fMRI data to discover aberrant effective connectivity within networks associated with eye gaze processing in schizophrenia. METHODS Twenty-seven patients (schizophrenia/schizoaffective disorder, SZ) and 22 healthy controls (HC) completed an eye gaze processing task during fMRI. Participants viewed faces with different gaze angles and performed explicit gaze discrimination (Gaze: "Looking at you?" yes/no) or implicit gaze processing (Gender: "male or female?"). Four brain regions, the secondary visual cortex (Vis), posterior superior temporal sulcus (pSTS), inferior parietal lobule (IPL), and posterior medial frontal cortex (pMFC) were identified as nodes for subsequent DCM analysis. RESULTS SZ and HC showed similar generative model structure, but SZ showed altered connectivity for specific self-connections, inter-regional connections during all gaze processing (reduced excitatory bottom-up and enhanced inhibitory top-down connections), and modulation by explicit gaze discrimination (increased frontal inhibition of visual cortex). Altered effective connectivity was significantly associated with poorer social cognition and functioning. CONCLUSIONS General gaze processing in SZ is associated with distributed cortical dysfunctions and bidirectional connectivity between regions, while explicit gaze discrimination involves predominantly top-down abnormalities in the visual system. These results suggest plausible neural mechanisms underpinning gaze processing deficits and may serve as bio-markers for intervention.
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Affiliation(s)
- Ivy F. Tso
- Department of Psychiatry, University of Michigan, Ann Arbor,Address correspondence to Ivy Tso, Department of Psychiatry, University of Michigan, 4250 Plymouth Road, Ann Arbor, MI 48109, U.S.A.
| | - Mike Angstadt
- Department of Psychiatry, University of Michigan, Ann Arbor
| | | | - Scott Peltier
- Functional MRI Laboratory, University of Michigan, Ann Arbor
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16
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Adib Y, Peltier S, Proust R, Duciel L, Bagot M, Bensussan A, Michel L. Rôle des ions calcium libérés par un pansement d’alginate de calcium sur les cellules NK. Ann Dermatol Venereol 2020. [DOI: 10.1016/j.annder.2020.09.559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Zouali H, Dobos G, Ly Ka So S, Peltier S, Ram-Wolff C, Battail C, Boland A, Bagot M, Bensussan A, Deleuze JF, Michel L. Analyse transcriptomique des fibroblastes dermiques associés aux lymphomes T cutanés : démonstration de leur rôle support. Ann Dermatol Venereol 2020. [DOI: 10.1016/j.annder.2020.09.145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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18
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Greenberg T, Fournier J, Stiffler R, Chase HW, Almeida JR, Aslam H, Deckersbach T, Cooper C, Toups M, Carmody T, Kurian B, Peltier S, Adams P, McInnis MG, Oquendo MA, Fava M, Parsey R, McGrath PJ, Weissman M, Trivedi M, Phillips ML. Reward related ventral striatal activity and differential response to sertraline versus placebo in depressed individuals. Mol Psychiatry 2020; 25:1526-1536. [PMID: 31462766 PMCID: PMC7047617 DOI: 10.1038/s41380-019-0490-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 04/16/2019] [Accepted: 05/31/2019] [Indexed: 12/22/2022]
Abstract
Medications to treat major depressive disorder (MDD) are not equally effective across patients. Given that neural response to rewards is altered in MDD and given that reward-related circuitry is modulated by dopamine and serotonin, we examined, for the first time, whether reward-related neural activity moderated response to sertraline, an antidepressant medication that targets these neurotransmitters. A total of 222 unmedicated adults with MDD randomized to receive sertraline (n = 110) or placebo (n = 112) in the Establishing Moderators and Biosignatures of Antidepressant Response in Clinical Care (EMBARC) study completed demographic and clinical assessments, and pretreatment functional magnetic resonance imaging while performing a reward task. We tested whether an index of reward system function in the ventral striatum (VS), a key reward circuitry region, moderated differential response to sertraline versus placebo, assessed with the Hamilton Rating Scale for Depression (HSRD) over 8 weeks. We observed a significant moderation effect of the reward index, reflecting the temporal dynamics of VS activity, on week-8 depression levels (Fs ≥ 9.67, ps ≤ 0.002). Specifically, VS responses that were abnormal with respect to predictions from reinforcement learning theory were associated with lower week-8 depression symptoms in the sertraline versus placebo arms. Thus, a more abnormal pattern of pretreatment VS dynamic response to reward expectancy (expected outcome value) and prediction error (difference between expected and actual outcome), likely reflecting serotonergic and dopaminergic deficits, was associated with better response to sertraline than placebo. Pretreatment measures of reward-related VS activity may serve as objective neural markers to advance efforts to personalize interventions by guiding individual-level choice of antidepressant treatment.
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Affiliation(s)
- Tsafrir Greenberg
- Department of Psychiatry, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
| | - Jay Fournier
- Department of Psychiatry, University of Pittsburgh School of Medicine
| | - Richelle Stiffler
- Department of Psychiatry, University of Pittsburgh School of Medicine
| | - Henry W. Chase
- Department of Psychiatry, University of Pittsburgh School of Medicine
| | - Jorge R. Almeida
- Department of Psychiatry, University of Texas at Austin Dell Medical School
| | - Haris Aslam
- Department of Psychiatry, University of Pittsburgh School of Medicine
| | | | - Crystal Cooper
- Department of Psychiatry, University of Texas Southwestern Medical Center
| | - Marisa Toups
- Department of Psychiatry, University of Texas at Austin Dell Medical School
| | - Tom Carmody
- Department of Psychiatry, University of Texas Southwestern Medical Center
| | - Benji Kurian
- Department of Psychiatry, University of Texas Southwestern Medical Center
| | | | - Phillip Adams
- Department of Psychiatry, Columbia University College of Physicians and Surgeons and the New York State Psychiatric Institute
| | | | - Maria A. Oquendo
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania
| | - Maurizio Fava
- Department of Psychiatry, Massachusetts General Hospital
| | - Ramin Parsey
- Departments of Psychiatry and Behavioral Science & Radiology, Stony Brook University
| | - Patrick J. McGrath
- Department of Psychiatry, Columbia University College of Physicians and Surgeons and the New York State Psychiatric Institute
| | - Myrna Weissman
- Department of Psychiatry, Columbia University College of Physicians and Surgeons and the New York State Psychiatric Institute
| | - Madhukar Trivedi
- Department of Psychiatry, University of Texas Southwestern Medical Center
| | - Mary L. Phillips
- Department of Psychiatry, University of Pittsburgh School of Medicine
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19
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Hampstead BM, Mascaro N, Schlaefflin S, Bhaumik A, Laing J, Peltier S, Martis B. Variable symptomatic and neurophysiologic response to HD-tDCS in a case series with posttraumatic stress disorder. Int J Psychophysiol 2019; 154:93-100. [PMID: 31783040 DOI: 10.1016/j.ijpsycho.2019.10.017] [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] [Received: 09/03/2018] [Revised: 10/22/2019] [Accepted: 10/29/2019] [Indexed: 01/04/2023]
Abstract
Chronic Posttraumatic stress disorder (PTSD), characterized by symptoms of re-experiencing, hyperarousal, and avoidance, is challenging to treat as a significant proportion of patients remain symptomatic following even empirically supported interventions. The current case series investigated the effects of up to 10 sessions of high definition transcranial direct current stimulation (HD-tDCS) on symptoms of PTSD. Participants received HD-tDCS that targeted the right lateral temporal cortex (LTC; center cathode placed over T8), given this region's potential involvement in symptoms of re-experiencing and, possibly, hyperarousal. Five of the six enrolled patients completed at least 8 sessions. Of these five, four showed improvement in symptoms of re-experiencing after HD-tDCS. This improvement was accompanied by connectivity change in the right LTC as well as a larger extended fear network but not a control network that consisted of visual cortex regions; however, the nature of the change varied across participants as some showed increased connectivity whereas others showed decreased connectivity. These preliminary data suggest that HD-tDCS may be beneficial for treatment of specific PTSD symptoms, in at least some individuals, and warrants further investigation.
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Affiliation(s)
- Benjamin M Hampstead
- Mental Health Service, VA Ann Arbor Healthcare System, Ann Arbor, MI, USA; Neuropsychology Section, Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA.
| | - Nathan Mascaro
- Trauma Recovery Program, Atlanta VAMC, Decatur, GA, USA; Department of Psychiatry and Behavioral Sciences, Emory University, Atlanta, GA, USA
| | - Stephen Schlaefflin
- Neuropsychology Section, Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - Arijit Bhaumik
- Department of Neurology, University of Michigan, Ann Arbor, MI, USA
| | - Julia Laing
- Neuropsychology Section, Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - Scott Peltier
- Functional MRI Laboratory, University of Michigan, Ann Arbor, MI, USA; Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - Brian Martis
- Mental Health Service, VA Ann Arbor Healthcare System, Ann Arbor, MI, USA
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20
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Hagler DJ, Hatton SN, Cornejo MD, Makowski C, Fair DA, Dick AS, Sutherland MT, Casey BJ, Barch DM, Harms MP, Watts R, Bjork JM, Garavan HP, Hilmer L, Pung CJ, Sicat CS, Kuperman J, Bartsch H, Xue F, Heitzeg MM, Laird AR, Trinh TT, Gonzalez R, Tapert SF, Riedel MC, Squeglia LM, Hyde LW, Rosenberg MD, Earl EA, Howlett KD, Baker FC, Soules M, Diaz J, de Leon OR, Thompson WK, Neale MC, Herting M, Sowell ER, Alvarez RP, Hawes SW, Sanchez M, Bodurka J, Breslin FJ, Morris AS, Paulus MP, Simmons WK, Polimeni JR, van der Kouwe A, Nencka AS, Gray KM, Pierpaoli C, Matochik JA, Noronha A, Aklin WM, Conway K, Glantz M, Hoffman E, Little R, Lopez M, Pariyadath V, Weiss SRB, Wolff-Hughes DL, DelCarmen-Wiggins R, Ewing SWF, Miranda-Dominguez O, Nagel BJ, Perrone AJ, Sturgeon DT, Goldstone A, Pfefferbaum A, Pohl KM, Prouty D, Uban K, Bookheimer SY, Dapretto M, Galvan A, Bagot K, Giedd J, Infante MA, Jacobus J, Patrick K, Shilling PD, Desikan R, Li Y, Sugrue L, Banich MT, Friedman N, Hewitt JK, Hopfer C, Sakai J, Tanabe J, Cottler LB, Nixon SJ, Chang L, Cloak C, Ernst T, Reeves G, Kennedy DN, Heeringa S, Peltier S, Schulenberg J, Sripada C, Zucker RA, Iacono WG, Luciana M, Calabro FJ, Clark DB, Lewis DA, Luna B, Schirda C, Brima T, Foxe JJ, Freedman EG, Mruzek DW, Mason MJ, Huber R, McGlade E, Prescot A, Renshaw PF, Yurgelun-Todd DA, Allgaier NA, Dumas JA, Ivanova M, Potter A, Florsheim P, Larson C, Lisdahl K, Charness ME, Fuemmeler B, Hettema JM, Maes HH, Steinberg J, Anokhin AP, Glaser P, Heath AC, Madden PA, Baskin-Sommers A, Constable RT, Grant SJ, Dowling GJ, Brown SA, Jernigan TL, Dale AM. Image processing and analysis methods for the Adolescent Brain Cognitive Development Study. Neuroimage 2019; 202:116091. [PMID: 31415884 PMCID: PMC6981278 DOI: 10.1016/j.neuroimage.2019.116091] [Citation(s) in RCA: 414] [Impact Index Per Article: 82.8] [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: 10/30/2018] [Revised: 08/01/2019] [Accepted: 08/08/2019] [Indexed: 01/29/2023] Open
Abstract
The Adolescent Brain Cognitive Development (ABCD) Study is an ongoing, nationwide study of the effects of environmental influences on behavioral and brain development in adolescents. The main objective of the study is to recruit and assess over eleven thousand 9-10-year-olds and follow them over the course of 10 years to characterize normative brain and cognitive development, the many factors that influence brain development, and the effects of those factors on mental health and other outcomes. The study employs state-of-the-art multimodal brain imaging, cognitive and clinical assessments, bioassays, and careful assessment of substance use, environment, psychopathological symptoms, and social functioning. The data is a resource of unprecedented scale and depth for studying typical and atypical development. The aim of this manuscript is to describe the baseline neuroimaging processing and subject-level analysis methods used by ABCD. Processing and analyses include modality-specific corrections for distortions and motion, brain segmentation and cortical surface reconstruction derived from structural magnetic resonance imaging (sMRI), analysis of brain microstructure using diffusion MRI (dMRI), task-related analysis of functional MRI (fMRI), and functional connectivity analysis of resting-state fMRI. This manuscript serves as a methodological reference for users of publicly shared neuroimaging data from the ABCD Study.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Feng Xue
- University of California, San Diego
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Megan Herting
- University of Southern California & Children’s Hospital Los Angeles
| | | | - Ruben P Alvarez
- Eunice Kennedy Shriver National Institute of Child Health and Human Development
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Yi Li
- University of California, San Francisco
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Michael E Charness
- VA Boston Healthcare System; Harvard Medical School; Boston University School of Medicine
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21
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Romano L, Feng J, Peltier S, Boccara D, Bagot M, Gan X, Liu G, Bensussan A, Michel L. 664 Biological activities of traditional medicinal herbs on skin cells. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Peltier S, Adib Y, Armstrong F, Ly Ka So S, Da Silva C, Proust R, Samardzic M, Bagot M, Bensussan A, Michel L. 671 Study of the molecular and functional effects of wound dressings on human dermal fibroblasts. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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23
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Lalwani P, Gagnon H, Cassady K, Simmonite M, Peltier S, Seidler RD, Taylor SF, Weissman DH, Polk TA. Neural distinctiveness declines with age in auditory cortex and is associated with auditory GABA levels. Neuroimage 2019; 201:116033. [PMID: 31326572 DOI: 10.1016/j.neuroimage.2019.116033] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 07/17/2019] [Accepted: 07/17/2019] [Indexed: 12/31/2022] Open
Abstract
Neural activation patterns in the ventral visual cortex in response to different categories of visual stimuli (e.g., faces vs. houses) are less selective, or distinctive, in older adults than in younger adults, a phenomenon known as age-related neural dedifferentiation. In this study, we investigated whether neural dedifferentiation extends to the auditory cortex. Inspired by previous animal work, we also investigated whether individual differences in GABA are associated with individual differences in neural distinctiveness in humans. 20 healthy young adults (ages 18-29) and 23 healthy older adults (over 65) completed a functional magnetic resonance imaging (fMRI) scan, during which neural activity was estimated while they listened to music and foreign speech. GABA levels in the auditory, ventrovisual and sensorimotor cortex were estimated in the same individuals in a separate magnetic resonance spectroscopy (MRS) scan. Relative to the younger adults, the older adults exhibited both (1) less distinct activation patterns for music vs. speech stimuli and (2) lower GABA levels in the auditory cortex. Also, individual differences in auditory GABA levels (but not ventrovisual or sensorimotor GABA levels) were associated with individual differences in neural distinctiveness in the auditory cortex in the older adults. These results demonstrate that age-related neural dedifferentiation extends to the auditory cortex and suggest that declining GABA levels may play a role in neural dedifferentiation in older adults.
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Affiliation(s)
- Poortata Lalwani
- Department of Psychology, University of Michigan, Ann Arbor, MI, 48109, USA.
| | - Holly Gagnon
- Department of Psychology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Kaitlin Cassady
- Department of Psychology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Molly Simmonite
- Department of Psychology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Scott Peltier
- Department of Bioengineering, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Rachael D Seidler
- Department of Applied Physiology & Kinesiology, University of Florida, Gainesville, FL, 32611, USA
| | - Stephan F Taylor
- Department of Psychology, University of Michigan, Ann Arbor, MI, 48109, USA; Department of Psychiatry, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Daniel H Weissman
- Department of Psychology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Thad A Polk
- Department of Psychology, University of Michigan, Ann Arbor, MI, 48109, USA
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Kardan O, Reuter-Lorenz PA, Peltier S, Churchill NW, Misic B, Askren MK, Jung MS, Cimprich B, Berman MG. Brain connectivity tracks effects of chemotherapy separately from behavioral measures. Neuroimage Clin 2019; 21:101654. [PMID: 30642760 PMCID: PMC6412071 DOI: 10.1016/j.nicl.2019.101654] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [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] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 12/06/2018] [Accepted: 01/03/2019] [Indexed: 11/17/2022]
Abstract
Several studies in cancer research have suggested that cognitive dysfunction following chemotherapy, referred to in lay terms as "chemobrain", is a serious problem. At present, the changes in integrative brain function that underlie such dysfunction remain poorly understood. Recent developments in neuroimaging suggest that patterns of functional connectivity can provide a broadly applicable neuromarker of cognitive performance and other psychometric measures. The current study used multivariate analysis methods to identify patterns of disruption in resting state functional connectivity of the brain due to chemotherapy and the degree to which the disruptions can be linked to behavioral measures of distress and cognitive performance. Sixty two women (22 healthy control, 18 patients treated with adjuvant chemotherapy, and 22 treated without chemotherapy) were evaluated with neurocognitive measures followed by self-report questionnaires and open eyes resting-state fMRI scanning at three time points: diagnosis (M0, pre-adjuvant treatment), 1 month (M1), and 7 months (M7) after treatment. The results indicated deficits in cognitive health of breast cancer patients immediately after chemotherapy that improved over time. This psychological trajectory was paralleled by a disruption and later recovery of resting-state functional connectivity, mostly in the parietal and frontal brain regions. Mediation analysis showed that the functional connectivity alteration pattern is a separable treatment symptom from the decreased cognitive health. Current study indicates that more targeted support for patients should be developed to ameliorate these multi-faceted side effects of chemotherapy treatment on neural functioning and cognitive health.
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25
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Jenkins LM, Skerrett KA, DelDonno SR, Patrón VG, Meyers KK, Peltier S, Zubieta JK, Langenecker SA, Starkman MN. Individuals with more severe depression fail to sustain nucleus accumbens activity to preferred music over time. Psychiatry Res Neuroimaging 2018; 275:21-27. [PMID: 29555382 PMCID: PMC5899937 DOI: 10.1016/j.pscychresns.2018.03.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 02/20/2018] [Accepted: 03/02/2018] [Indexed: 12/31/2022]
Abstract
We investigated the ability of preferred classical music to activate the nucleus accumbens in patients with Major depressive disorder (MDD). Twelve males with MDD and 10 never mentally ill male healthy controls (HC) completed measures of anhedonia and depression severity, and listened to 90-second segments of preferred classical music during fMRI. Compared to HCs, individuals with MDD showed less activation of the left nucleus accumbens (NAcc). Individuals with MDD showed attenuation of the left NAcc response in later compared to earlier parts of the experiment, supporting theories that MDD involves an inability to sustain reward network activation. Counter intuitively, we found that NAcc activity during early music listening was associated with greater depression severity. In whole-brain analyses, anhedonia scores predicted activity in regions within the default mode network, supporting previous findings. Our results support theories that MDD involves an inability to sustain reward network activation. It also highlights that pleasant classical music can engage critical neural reward circuitry in MDD.
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Affiliation(s)
- Lisanne M Jenkins
- Department of Psychiatry, The University of Illinois at Chicago, Chicago, IL, USA
| | - Kristy A Skerrett
- Department of Psychiatry, The University of Illinois at Chicago, Chicago, IL, USA
| | - Sophie R DelDonno
- Department of Psychiatry, The University of Illinois at Chicago, Chicago, IL, USA
| | | | - Kortni K Meyers
- Department of Psychiatry, The University of Michigan, Ann Arbor, MI, USA
| | - Scott Peltier
- Department of Biomedical Engineering, The University of Michigan, Ann Arbor, MI, USA
| | - Jon-Kar Zubieta
- Department of Psychiatry, The University of Michigan, Ann Arbor, MI, USA
| | - Scott A Langenecker
- Department of Psychiatry, The University of Illinois at Chicago, Chicago, IL, USA; Department of Psychiatry, The University of Michigan, Ann Arbor, MI, USA.
| | - Monica N Starkman
- Department of Psychiatry, The University of Michigan, Ann Arbor, MI, USA
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Jung MS, Zhang M, Askren MK, Berman MG, Peltier S, Hayes DF, Therrien B, Reuter-Lorenz PA, Cimprich B. Cognitive dysfunction and symptom burden in women treated for breast cancer: a prospective behavioral and fMRI analysis. Brain Imaging Behav 2018; 11:86-97. [PMID: 26809289 DOI: 10.1007/s11682-016-9507-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Neural dysfunction and cognitive complaints are associated with chemotherapy for breast cancer although trajectory and contributory factors remain unclear. We prospectively examined neurocognition using fMRI and self-reported cognitive, physical and psychological symptoms in women treated with adjuvant chemotherapy over one year. Patients treated with (n = 28) or without (n = 34) chemotherapy for localized breast cancer and healthy controls (n = 30) performed a Verbal Working Memory Task (VWMT) during fMRI and provided self-reports at baseline (pre-adjuvant treatment), five- (M5) and 12-months (M12). Repeated measures ANOVA and multivariable regression determined change over time and possible predictors (e.g., hemoglobin, physical symptoms, worry) of VWMT performance, fMRI activity in the frontoparietal executive network, and cognitive complaints at M12. Trajectories of change in VWMT performance for chemotherapy and healthy control groups differed significantly with the chemotherapy group performing worse at M12. Chemotherapy patients had persistently higher spatial variance (neural inefficiency) in executive network fMRI-activation than both other groups from baseline to M12. Cognitive complaints were similar among groups over time. At M12, VWMT performance and executive network spatial variance were each independently predicted by chemotherapy treatment and their respective baseline values, while cognitive complaints were predicted by baseline level, physical symptoms and worry. Executive network inefficiency and neurocognitive performance deficits pre-adjuvant treatment predict cognitive dysfunction one-year post-baseline, particularly in chemotherapy-treated patients. Persistent cognitive complaints are linked with physical symptom severity and worry regardless of treatment. Pre-chemotherapy interventions should target both neurocognitive deficits and symptom burden to improve cognitive outcomes for breast cancer survivors.
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Affiliation(s)
- Mi Sook Jung
- College of Nursing Chungnam National University, 266 Munhwa-ro Jung-gu, Daejeon, 35015, South Korea.
| | - Min Zhang
- University of Michigan, 500 S State St, Ann Arbor, MI, 48109, USA
| | | | - Marc G Berman
- University of Chicago, 5801 S Ellis Ave, Chicago, IL, 60637, USA
| | - Scott Peltier
- University of Michigan, 500 S State St, Ann Arbor, MI, 48109, USA
| | - Daniel F Hayes
- University of Michigan, 500 S State St, Ann Arbor, MI, 48109, USA
| | - Barbara Therrien
- University of Michigan, 500 S State St, Ann Arbor, MI, 48109, USA
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Hampstead BM, Lesnovskaya A, Garcia S, Ma S, Bhaumik AK, Giordani B, Peltier S. [P4–023]: HIGH‐DEFINITION TRANSCRANIAL DIRECT CURRENT STIMULATION MODULATES BOLD SIGNAL DURING SPATIAL NAVIGATION IN OLDER CONTROLS AND PATIENTS WITH MCI. Alzheimers Dement 2017. [DOI: 10.1016/j.jalz.2017.06.1887] [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)
| | | | | | - Sean Ma
- University of MichiganAnn ArborMIUSA
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Hampstead B, Garcia S, Chen A, Rahman-Filipiak A, Reckow J, Peltier S. The current state of, and future directions for, tDCS in dementia. Brain Stimul 2017. [DOI: 10.1016/j.brs.2017.01.481] [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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Nejad-Davarani SP, Chopp M, Peltier S, Li L, Davoodi-Bojd E, Lu M, Bagher-Ebadian H, Budaj J, Gallagher D, Ding Y, Hearshen D, Jiang Q, Cerghet M. Resting state fMRI connectivity analysis as a tool for detection of abnormalities in five different cognitive networks of the brain in Multiple Sclerosis patients. ACTA ACUST UNITED AC 2016; 2:464-471. [PMID: 29170718 PMCID: PMC5697978 DOI: 10.15761/ccrr.1000s1001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Objectives Cognitive dysfunction is present in at least half of patients with Multiple Sclerosis. The purpose of this study was to examine functional connectivity abnormalities in patients with multiple sclerosis (MS) using resting state fMRI (rsfMRI). Methods Conventional MRI, rsfMRI and diffusion tensor imaging (DTI) data was acquired from 10 patients with relapsing-remitting multiple sclerosis (RRMS) and 20 healthy controls. Cross-correlation of the resting state average signal among the voxels in each brain region of the five cognitive networks: default mode network (DMN), attention, verbal memory, memory, and visuospatial working memory network, was calculated. Voxelwise analyses were used to investigate fractional anisotropy (FA) of white matter tracts. The normalized gray matter (GM), white matter and thalamus volumes were calculated. Results Compared to controls, significant deficit in MS patients at each of five networks, attention (p=0.026), DMN (p=0.004), verbal memory (p<0.001), memory (p=0.001), visuospatial working memory (p=0.003) was found. Significant reduction (p=0.034) in the normalized GM volume and asymmetry in thalamus volume (p=0.041) was detected in MS patients compared to controls. Conclusion Wide spread of functional abnormalities are present within different cognitive networks in patients with RRMS, suggesting that DMN may not be sufficient for measurement of MS cognitive impairment. Larger and longitudinal studies should ascertain whether rsfMRI of cognitive networks and changes in GM and thalamus volume can be used as tools for assessment of cognition in clinical trials in MS.
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Affiliation(s)
- Siamak P Nejad-Davarani
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA.,Department of Biomedical engineering, University of Michigan, Ann Arbor, MI, USA.,Department of Radiology, University of Michigan, Ann Arbor, MI, USA
| | - Michael Chopp
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA
| | - Scott Peltier
- Department of Biomedical engineering, University of Michigan, Ann Arbor, MI, USA
| | - Lian Li
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA
| | | | - Mei Lu
- Biostatistics and Research Epidemiology, Henry Ford Hospital, Detroit, MI, USA
| | | | - John Budaj
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA
| | - David Gallagher
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA
| | - Yue Ding
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA
| | - David Hearshen
- Department of Radiology, Henry Ford Hospital, Detroit, MI, USA
| | - Quan Jiang
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA
| | - Mirela Cerghet
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA
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Cameron Craddock R, S Margulies D, Bellec P, Nolan Nichols B, Alcauter S, A Barrios F, Burnod Y, J Cannistraci C, Cohen-Adad J, De Leener B, Dery S, Downar J, Dunlop K, R Franco A, Seligman Froehlich C, J Gerber A, S Ghosh S, J Grabowski T, Hill S, Sólon Heinsfeld A, Matthew Hutchison R, Kundu P, R Laird A, Liew SL, J Lurie D, G McLaren D, Meneguzzi F, Mennes M, Mesmoudi S, O'Connor D, H Pasaye E, Peltier S, Poline JB, Prasad G, Fraga Pereira R, Quirion PO, Rokem A, S Saad Z, Shi Y, C Strother S, Toro R, Q Uddin L, D Van Horn J, W Van Meter J, C Welsh R, Xu T. Brainhack: a collaborative workshop for the open neuroscience community. Gigascience 2016; 5:16. [PMID: 27042293 PMCID: PMC4818387 DOI: 10.1186/s13742-016-0121-x] [Citation(s) in RCA: 27] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 03/15/2016] [Indexed: 11/10/2022] Open
Abstract
Brainhack events offer a novel workshop format with participant-generated content that caters to the rapidly growing open neuroscience community. Including components from hackathons and unconferences, as well as parallel educational sessions, Brainhack fosters novel collaborations around the interests of its attendees. Here we provide an overview of its structure, past events, and example projects. Additionally, we outline current innovations such as regional events and post-conference publications. Through introducing Brainhack to the wider neuroscience community, we hope to provide a unique conference format that promotes the features of collaborative, open science.
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Affiliation(s)
- R Cameron Craddock
- The Neuro Bureau, Leipzig, 04317 Germany ; Computational Neuroimaging Lab, Center for Biomedical Imaging and Neuromodulation, Nathan S. Kline Institute for Psychiatric Research, Orangeburg, New York, 10962 USA ; Center for the Developing Brain, Child Mind Institute, New York, New York, 10022 USA
| | - Daniel S Margulies
- The Neuro Bureau, Leipzig, 04317 Germany ; Max Planck Research Group for Neuroanatomy & Connectivity, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, 04103 Germany
| | - Pierre Bellec
- The Neuro Bureau, Leipzig, 04317 Germany ; Département d'Informatique et de Recherche Opérationnelle, Université de Montréal, Montréal, Québec H3W 1W5, Canada ; Functional Neuroimaging Unit, Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal, Québec H3W 1W5, Canada
| | - B Nolan Nichols
- The Neuro Bureau, Leipzig, 04317 Germany ; Center for Health Sciences, SRI International, Menlo Park, California, 94025 USA ; Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, California, 94305 USA
| | - Sarael Alcauter
- Instituto De Neurobiología, Universidad Nacional Autónoma de México, Querétaro, 76203 México
| | - Fernando A Barrios
- Instituto De Neurobiología, Universidad Nacional Autónoma de México, Querétaro, 76203 México
| | - Yves Burnod
- Laboratoire d'Imagerie Biomédicale, Sorbonne Universités, UPMC Université Paris 06, Paris, 75005 France ; Institut des Systèmes Complexes de Paris-Île-de-France, Paris, 75013 France
| | - Christopher J Cannistraci
- Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, New York, 10029 USA
| | - Julien Cohen-Adad
- Functional Neuroimaging Unit, Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal, Québec H3W 1W5, Canada ; Institute of Biomedical Engineering, Ecole Polytechnique de Montréal, Montréal, Québec H3T 1J4, Canada
| | - Benjamin De Leener
- Institute of Biomedical Engineering, Ecole Polytechnique de Montréal, Montréal, Québec H3T 1J4, Canada
| | - Sebastien Dery
- McConnell Brain Imaging Center, Montreal Neurological Institute, Montreal, Quebec H3A 2B4, Canada
| | - Jonathan Downar
- MRI-Guided rTMS Clinic, University Health Network, Toronto, Ontario M5T 2S8, Canada ; Department of Psychiatry, University Health Network, University of Toronto, Toronto, Ontario M5T 2S8, Canada ; Institute of Medical Sciences, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Katharine Dunlop
- MRI-Guided rTMS Clinic, University Health Network, Toronto, Ontario M5T 2S8, Canada ; Institute of Medical Sciences, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Alexandre R Franco
- The Neuro Bureau, Leipzig, 04317 Germany ; Faculdade de Engenharia, PUCRS, Porto Alegre, 90619 Brazil ; Instituto do Cérebro do Rio Grande do Sul, PUCRS, Porto Alegre, 90610 Brazil ; Faculdade de Medicina, PUCRS, Porto Alegre, 90619 Brazil
| | - Caroline Seligman Froehlich
- The Neuro Bureau, Leipzig, 04317 Germany ; Computational Neuroimaging Lab, Center for Biomedical Imaging and Neuromodulation, Nathan S. Kline Institute for Psychiatric Research, Orangeburg, New York, 10962 USA
| | - Andrew J Gerber
- New York State Psychiatric Institute, New York, New York, 10032 USA ; Division of Child and Adolescent Psychiatry, Department of Psychiatry, Columbia University, New York, New York, 10032 USA
| | - Satrajit S Ghosh
- The Neuro Bureau, Leipzig, 04317 Germany ; McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139 USA ; Department of Otology and Laryngology, Harvard Medical School, Boston, Massachusetts, 02115 USA
| | - Thomas J Grabowski
- Department of Radiology, University of Washington, Seattle, Washington, 98105 USA ; Department of Neurology, University of Washington, Seattle, Washington, 98105 USA
| | - Sean Hill
- International Neuroinformatics Coordinating Facility, Stockholm, 171 77 Sweden ; Karolinska Institutet, Stockholm, 171 77 Sweden
| | | | - R Matthew Hutchison
- The Neuro Bureau, Leipzig, 04317 Germany ; Center for Brain Science, Harvard University, Cambridge, Massachusetts, 02138 USA
| | - Prantik Kundu
- The Neuro Bureau, Leipzig, 04317 Germany ; Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, New York, 10029 USA
| | - Angela R Laird
- Department of Physics, Florida International University, Miami, Florida, 33199 USA
| | - Sook-Lei Liew
- The Neuro Bureau, Leipzig, 04317 Germany ; Chan Division of Occupational Science and Occupational Therapy, Division of Physical Therapy and Biokinesiology, Department of Neurology, University of Southern California, Los Angeles, California, 90033 USA ; USC Mark and Mary Stevens Neuroimaging and Informatics Institute, University of Southern California, Los Angeles, Canada, 90033 USA
| | - Daniel J Lurie
- Department of Psychology,, University of California, Berkeley, California, 94720 USA
| | - Donald G McLaren
- The Neuro Bureau, Leipzig, 04317 Germany ; Biospective, Inc., Montréal,, Québec H4P 1K6, Canada ; Department of Neurology, Massachusetts General Hospital, Boston, Massachusetts, 02114, USA
| | | | - Maarten Mennes
- The Neuro Bureau, Leipzig, 04317 Germany ; Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behaviour, Centre for Cognitive Neuroimaging, Nijmegen, 6525 EN The Netherlands
| | - Salma Mesmoudi
- Institut des Systèmes Complexes de Paris-Île-de-France, Paris, 75013 France ; Sorbonne Universités, Paris-1 Université, Equipement d'Excellence MATRICE, Paris, 75005, France
| | - David O'Connor
- Center for the Developing Brain, Child Mind Institute, New York, New York, 10022 USA
| | - Erick H Pasaye
- Instituto De Neurobiología, Universidad Nacional Autónoma de México, Querétaro, 76203 México
| | - Scott Peltier
- Functional MRI Laboratory, University of Michigan, Ann Arbor, Michigan, 48109 USA
| | - Jean-Baptiste Poline
- Helen Wills Neuroscience Institute, University of California, Berkeley, California, 94720 USA ; Henry H. Wheeler Jr. Brain Imaging Center, University of California, Berkeley, California, 94709 USA
| | - Gautam Prasad
- Laboratory of Neuro Imaging, Stevens Neuroimaging and Informatics Institute, Keck School of Medicine of University of Southern California, Los Angeles, California, 90033 USA
| | | | - Pierre-Olivier Quirion
- Functional Neuroimaging Unit, Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal, Québec H3W 1W5, Canada
| | - Ariel Rokem
- The University of Washington eScience Institute, Seattle, Washington, 98195 USA
| | - Ziad S Saad
- Scientific and Statistical Computing Core, National Institute of Mental Health, Bethesda, Maryland, 20892 USA
| | - Yonggang Shi
- Laboratory of Neuro Imaging, Stevens Neuroimaging and Informatics Institute, Keck School of Medicine of University of Southern California, Los Angeles, California, 90033 USA
| | - Stephen C Strother
- Institute of Medical Sciences, University of Toronto, Toronto, Ontario M5S 1A8, Canada ; Rotman Research Institute, Baycrest Hospital, Toronto, Ontario M6A 2E1, Canada ; Department of Medical Biophysics, University of Toronto, Toronto, Ontario M5G 1L7, Canada
| | - Roberto Toro
- The Neuro Bureau, Leipzig, 04317 Germany ; Human Genetics and Cognitive Functions Unit, Institut Pasteur, Paris, 75015 France ; Unité Mixte de Recherche 3571, Genes, Synapses and Cognition, Centre National de la Recherche Scientifique, Institut Pasteur, Paris, 75015 France
| | - Lucina Q Uddin
- The Neuro Bureau, Leipzig, 04317 Germany ; Department of Psychology, University of Miami, Coral Gables, Florida, 33124 USA ; Neuroscience Program, University of Miami Miller School of Medicine, Miami, Florida, 33136 USA
| | - John D Van Horn
- USC Mark and Mary Stevens Neuroimaging and Informatics Institute, University of Southern California, Los Angeles, Canada, 90033 USA
| | - John W Van Meter
- Center for Functional and Molecular Imaging, Georgetown University Medical Center, Washington,, 20007 DC USA
| | - Robert C Welsh
- Department of Psychiatry, University of Michigan, Ann Arbor, Michigan, 48109 USA ; Department of Radiology,, University of Michigan, Ann Arbor, Michigan, 48109 USA
| | - Ting Xu
- Center for the Developing Brain, Child Mind Institute, New York, New York, 10022 USA
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Greenberg T, Chase HW, Almeida JR, Stiffler R, Zevallos CR, Aslam HA, Deckersbach T, Weyandt S, Cooper C, Toups M, Carmody T, Kurian B, Peltier S, Adams P, McInnis MG, Oquendo MA, McGrath PJ, Fava M, Weissman M, Parsey R, Trivedi MH, Phillips ML. Moderation of the Relationship Between Reward Expectancy and Prediction Error-Related Ventral Striatal Reactivity by Anhedonia in Unmedicated Major Depressive Disorder: Findings From the EMBARC Study. Am J Psychiatry 2015; 172:881-91. [PMID: 26183698 PMCID: PMC4858169 DOI: 10.1176/appi.ajp.2015.14050594] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
OBJECTIVE Anhedonia, disrupted reward processing, is a core symptom of major depressive disorder. Recent findings demonstrate altered reward-related ventral striatal reactivity in depressed individuals, but the extent to which this is specific to anhedonia remains poorly understood. The authors examined the effect of anhedonia on reward expectancy (expected outcome value) and prediction error- (discrepancy between expected and actual outcome) related ventral striatal reactivity, as well as the relationship between these measures. METHOD A total of 148 unmedicated individuals with major depressive disorder and 31 healthy comparison individuals recruited for the multisite EMBARC (Establishing Moderators and Biosignatures of Antidepressant Response in Clinical Care) study underwent functional MRI during a well-validated reward task. Region of interest and whole-brain data were examined in the first- (N=78) and second- (N=70) recruited cohorts, as well as the total sample, of depressed individuals, and in healthy individuals. RESULTS Healthy, but not depressed, individuals showed a significant inverse relationship between reward expectancy and prediction error-related right ventral striatal reactivity. Across all participants, and in depressed individuals only, greater anhedonia severity was associated with a reduced reward expectancy-prediction error inverse relationship, even after controlling for other symptoms. CONCLUSIONS The normal reward expectancy and prediction error-related ventral striatal reactivity inverse relationship concords with conditioning models, predicting a shift in ventral striatal responding from reward outcomes to reward cues. This study shows, for the first time, an absence of this relationship in two cohorts of unmedicated depressed individuals and a moderation of this relationship by anhedonia, suggesting reduced reward-contingency learning with greater anhedonia. These findings help elucidate neural mechanisms of anhedonia, as a step toward identifying potential biosignatures of treatment response.
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Chase HW, Fournier JC, Greenberg T, Almeida JR, Stiffler R, Zevallos CR, Aslam H, Cooper C, Deckersbach T, Weyandt S, Adams P, Toups M, Carmody T, Oquendo MA, Peltier S, Fava M, McGrath PJ, Weissman M, Parsey R, McInnis MG, Kurian B, Trivedi MH, Phillips ML. Accounting for Dynamic Fluctuations across Time when Examining fMRI Test-Retest Reliability: Analysis of a Reward Paradigm in the EMBARC Study. PLoS One 2015; 10:e0126326. [PMID: 25961712 PMCID: PMC4427400 DOI: 10.1371/journal.pone.0126326] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 03/31/2015] [Indexed: 02/06/2023] Open
Abstract
Longitudinal investigation of the neural correlates of reward processing in depression may represent an important step in defining effective biomarkers for antidepressant treatment outcome prediction, but the reliability of reward-related activation is not well understood. Thirty-seven healthy control participants were scanned using fMRI while performing a reward-related guessing task on two occasions, approximately one week apart. Two main contrasts were examined: right ventral striatum (VS) activation fMRI BOLD signal related to signed prediction errors (PE) and reward expectancy (RE). We also examined bilateral visual cortex activation coupled to outcome anticipation. Significant VS PE-related activity was observed at the first testing session, but at the second testing session, VS PE-related activation was significantly reduced. Conversely, significant VS RE-related activity was observed at time 2 but not time 1. Increases in VS RE-related activity from time 1 to time 2 were significantly associated with decreases in VS PE-related activity from time 1 to time 2 across participants. Intraclass correlations (ICCs) in VS were very low. By contrast, visual cortex activation had much larger ICCs, particularly in individuals with high quality data. Dynamic changes in brain activation are widely predicted, and failure to account for these changes could lead to inaccurate evaluations of the reliability of functional MRI signals. Conventional measures of reliability cannot distinguish between changes specified by algorithmic models of neural function and noisy signal. Here, we provide evidence for the former possibility: reward-related VS activations follow the pattern predicted by temporal difference models of reward learning but have low ICCs.
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Affiliation(s)
- Henry W. Chase
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America
- * E-mail:
| | - Jay C. Fournier
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America
| | - Tsafrir Greenberg
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America
| | - Jorge R. Almeida
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America
| | - Richelle Stiffler
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America
| | - Carlos R. Zevallos
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America
| | - Haris Aslam
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America
| | - Crystal Cooper
- UT Southwestern Medical Center, Department of Psychiatry, Dallas, Texas, United States of America
| | - Thilo Deckersbach
- Department of Psychiatry, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Sarah Weyandt
- UT Southwestern Medical Center, Department of Psychiatry, Dallas, Texas, United States of America
| | - Phillip Adams
- Department of Psychiatry and Behavioral Science, Stony Brook University, Stony Brook, New York, United States of America
| | - Marisa Toups
- UT Southwestern Medical Center, Department of Psychiatry, Dallas, Texas, United States of America
| | - Tom Carmody
- UT Southwestern Medical Center, Department of Psychiatry, Dallas, Texas, United States of America
| | - Maria A. Oquendo
- NY State Psychiatric Institute, Therapeutics Depression Evaluation Service, New York, New York, United States of America
- Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, New York, United States of America
| | - Scott Peltier
- Functional MRI Laboratory, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Maurizio Fava
- Department of Psychiatry, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Patrick J. McGrath
- NY State Psychiatric Institute, Therapeutics Depression Evaluation Service, New York, New York, United States of America
- Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, New York, United States of America
| | - Myrna Weissman
- NY State Psychiatric Institute, Therapeutics Depression Evaluation Service, New York, New York, United States of America
- Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, New York, United States of America
| | - Ramin Parsey
- Department of Psychiatry and Behavioral Science, Stony Brook University, Stony Brook, New York, United States of America
- Department of Radiology, Stony Brook University, Stony Brook, New York, United States of America
| | - Melvin G. McInnis
- Department of Psychiatry, University of Michigan School of Medicine, Ann Arbor, Michigan, United States of America
| | - Benji Kurian
- UT Southwestern Medical Center, Department of Psychiatry, Dallas, Texas, United States of America
| | - Madhukar H. Trivedi
- UT Southwestern Medical Center, Department of Psychiatry, Dallas, Texas, United States of America
| | - Mary L. Phillips
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America
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Festini SB, Bernard JA, Kwak Y, Peltier S, Bohnen NI, Müller MLTM, Dayalu P, Seidler RD. Altered cerebellar connectivity in Parkinson's patients ON and OFF L-DOPA medication. Front Hum Neurosci 2015; 9:214. [PMID: 25954184 PMCID: PMC4405615 DOI: 10.3389/fnhum.2015.00214] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [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: 02/10/2015] [Accepted: 04/02/2015] [Indexed: 01/28/2023] Open
Abstract
Although nigrostriatal changes are most commonly affiliated with Parkinson's disease, the role of the cerebellum in Parkinson's has become increasingly apparent. The present study used lobule-based cerebellar resting state functional connectivity to (1) compare cerebellar-whole brain and cerebellar-cerebellar connectivity in Parkinson's patients both ON and OFF L-DOPA medication and controls, and to (2) relate variations in cerebellar connectivity to behavioral performance. Results indicated that, when contrasted to the control group, Parkinson's patients OFF medication had increased levels of cerebellar-whole brain and cerebellar-cerebellar connectivity, whereas Parkinson's patients ON medication had decreased levels of cerebellar-whole brain and cerebellar-cerebellar connectivity. Moreover, analyses relating levels of cerebellar connectivity to behavioral measures demonstrated that, within each group, increased levels of connectivity were most often associated with improved cognitive and motor performance, but there were several instances where increased connectivity was related to poorer performance. Overall, the present study found medication-variant cerebellar connectivity in Parkinson's patients, further demonstrating cerebellar changes associated with Parkinson's disease and the moderating effects of medication.
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Affiliation(s)
- Sara B Festini
- Center for Vital Longevity, School of Behavioral and Brain Sciences, University of Texas at Dallas Dallas, TX, USA ; Department of Psychology, University of Michigan Ann Arbor, MI, USA
| | - Jessica A Bernard
- Department of Psychology and Neuroscience, University of Colorado Boulder Boulder, CO, USA
| | - Youngbin Kwak
- Department of Psychological and Brain Sciences, University of Massachusetts Amherst Amherst, MA, USA
| | - Scott Peltier
- Functional MRI Laboratory, Department of Biomedical Engineering, University of Michigan Ann Arbor, MI, USA
| | - Nicolaas I Bohnen
- Department of Radiology, University of Michigan Ann Arbor, MI, USA ; Department of Neurology, University of Michigan Ann Arbor, MI, USA ; Geriatric Research, Education and Clinical Center, VA Ann Arbor Ann Arbor, MI, USA
| | | | - Praveen Dayalu
- Department of Neurology, University of Michigan Ann Arbor, MI, USA
| | - Rachael D Seidler
- Department of Psychology, University of Michigan Ann Arbor, MI, USA ; School of Kinesiology, University of Michigan Ann Arbor, MI, USA
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Jahanian H, Peltier S, Noll DC, Hernandez Garcia L. Arterial cerebral blood volume-weighted functional MRI using pseudocontinuous arterial spin tagging (AVAST). Magn Reson Med 2015; 73:1053-64. [PMID: 24753198 DOI: 10.1002/mrm.25220] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [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: 09/16/2013] [Revised: 02/14/2014] [Accepted: 02/25/2014] [Indexed: 02/03/2023]
Abstract
PURPOSE Neurovascular regulation, including responses to neural activation that give rise to the blood oxygenation level-dependent (BOLD) effect, occurs mainly at the arterial and arteriolar level. The purpose of this study is to develop a framework for fast imaging of arterial cerebral blood volume (aCBV) signal suitable for functional imaging studies. METHODS A variant of the pseudocontinuous arterial spin tagging technique was developed in order to achieve a contrast that depends on aCBV with little contamination from perfusion signal by taking advantage of the kinetics of the tag through the vasculature. This technique tailors the tagging duration and repetition time for each subject. The proposed technique, called AVAST, is compared empirically with BOLD imaging and standard (perfusion-weighted) arterial spin labeling (ASL) technique, in a motor-visual activation paradigm. RESULTS The average Z-scores in the activated area obtained over all the subjects were 4.25, 5.52, and 7.87 for standard ASL, AVAST, and BOLD techniques, respectively. The aCBV contrast obtained from AVAST provided 80% higher average signal-to-noise ratio and 95% higher average contrast-to-noise ratio compared with that of the standard ASL measurements. CONCLUSION AVAST exhibits improved activation detection sensitivity and temporal resolution over the standard ASL technique, in functional MRI experiments, while preserving its quantitative nature and statistical advantages. AVAST particularly could be useful in clinical studies of pathological conditions, longitudinal studies of cognitive function, and studies requiring sustained periods of the condition.
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Churchill NW, Cimprich B, Askren MK, Reuter-Lorenz PA, Jung MS, Peltier S, Berman MG. Scale-free brain dynamics under physical and psychological distress: pre-treatment effects in women diagnosed with breast cancer. Hum Brain Mapp 2014; 36:1077-92. [PMID: 25388082 DOI: 10.1002/hbm.22687] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 10/15/2014] [Accepted: 10/29/2014] [Indexed: 11/10/2022] Open
Abstract
Stressful life events are related to negative outcomes, including physical and psychological manifestations of distress, and behavioral deficits. Patients diagnosed with breast cancer report impaired attention and working memory prior to adjuvant therapy, which may be induced by distress. In this article, we examine whether brain dynamics show systematic changes due to the distress associated with cancer diagnosis. We hypothesized that impaired working memory is associated with suppression of "long-memory" neuronal dynamics; we tested this by measuring scale-free ("fractal") brain dynamics, quantified by the Hurst exponent (H). Fractal scaling refers to signals that do not occur at a specific time-scale, possessing a spectral power curve P(f)∝ f(-β); they are "long-memory" processes, with significant autocorrelations. In a BOLD functional magnetic resonance imaging study, we scanned three groups during a working memory task: women scheduled to receive chemotherapy or radiotherapy and aged-matched controls. Surprisingly, patients' BOLD signal exhibited greater H with increasing intensity of anticipated treatment. However, an analysis of H and functional connectivity against self-reported measures of psychological distress (Worry, Anxiety, Depression) and physical distress (Fatigue, Sleep problems) revealed significant interactions. The modulation of (Worry, Anxiety) versus (Fatigue, Sleep Problems, Depression) showed the strongest effect, where higher worry and lower fatigue was related to reduced H in regions involved in visuospatial search, attention, and memory processing. This is also linked to decreased functional connectivity in these brain regions. Our results indicate that the distress associated with cancer diagnosis alters BOLD scaling, and H is a sensitive measure of the interaction between psychological versus physical distress.
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Affiliation(s)
- Nathan W Churchill
- Rotman Research Institute, Baycrest Hospital, Toronto, Canada; Department of Medical Biophysics, University of Toronto, Toronto, Canada
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Mišić B, Fatima Z, Askren MK, Buschkuehl M, Churchill N, Cimprich B, Deldin PJ, Jaeggi S, Jung M, Korostil M, Kross E, Krpan KM, Peltier S, Reuter-Lorenz PA, Strother SC, Jonides J, McIntosh AR, Berman MG. The functional connectivity landscape of the human brain. PLoS One 2014; 9:e111007. [PMID: 25350370 PMCID: PMC4211704 DOI: 10.1371/journal.pone.0111007] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 09/19/2014] [Indexed: 11/23/2022] Open
Abstract
Functional brain networks emerge and dissipate over a primarily static anatomical foundation. The dynamic basis of these networks is inter-regional communication involving local and distal regions. It is assumed that inter-regional distances play a pivotal role in modulating network dynamics. Using three different neuroimaging modalities, 6 datasets were evaluated to determine whether experimental manipulations asymmetrically affect functional relationships based on the distance between brain regions in human participants. Contrary to previous assumptions, here we show that short- and long-range connections are equally likely to strengthen or weaken in response to task demands. Additionally, connections between homotopic areas are the most stable and less likely to change compared to any other type of connection. Our results point to a functional connectivity landscape characterized by fluid transitions between local specialization and global integration. This ability to mediate functional properties irrespective of spatial distance may engender a diverse repertoire of cognitive processes when faced with a dynamic environment.
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Affiliation(s)
- Bratislav Mišić
- Rotman Research Institute, Baycrest Centre, Toronto, Ontario, Canada
- * E-mail: (MGB); (BM)
| | - Zainab Fatima
- Rotman Research Institute, Baycrest Centre, Toronto, Ontario, Canada
| | - Mary K. Askren
- Department of Radiology, University of Washington, Seattle, Washington, United States of America
| | - Martin Buschkuehl
- MIND Research Institute, Irvine, California, United States of America
| | - Nathan Churchill
- Rotman Research Institute, Baycrest Centre, Toronto, Ontario, Canada
| | - Bernadine Cimprich
- School of Nursing, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Patricia J. Deldin
- Department of Psychology, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Susanne Jaeggi
- Department of Psychology, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Misook Jung
- Department of Psychology, Chungnam University, Daejeon, South Korea
| | - Michele Korostil
- Rotman Research Institute, Baycrest Centre, Toronto, Ontario, Canada
| | - Ethan Kross
- Department of Psychology, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Katherine M. Krpan
- Department of Psychology, University of South Carolina, Columbia, South Carolina, United States of America
| | - Scott Peltier
- Department of Psychology, University of Michigan, Ann Arbor, Michigan, United States of America
| | | | | | - John Jonides
- Department of Psychology, University of Michigan, Ann Arbor, Michigan, United States of America
| | | | - Marc G. Berman
- Department of Psychology, University of South Carolina, Columbia, South Carolina, United States of America
- Department of Psychology, University of Chicago, Chicago, Illinois, United States of America
- * E-mail: (MGB); (BM)
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Askren MK, Jung M, Berman MG, Zhang M, Therrien B, Peltier S, Ossher L, Hayes DF, Reuter-Lorenz PA, Cimprich B. Neuromarkers of fatigue and cognitive complaints following chemotherapy for breast cancer: a prospective fMRI investigation. Breast Cancer Res Treat 2014; 147:445-55. [PMID: 25138546 DOI: 10.1007/s10549-014-3092-6] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Accepted: 08/05/2014] [Indexed: 11/28/2022]
Abstract
The aim of this study is to use functional magnetic resonance imaging (fMRI) to prospectively examine pre-treatment predictors of post-treatment fatigue and cognitive dysfunction in women treated with adjuvant chemotherapy for breast cancer. Fatigue and cognitive dysfunction often co-occur in women treated for breast cancer. We hypothesized that pre-treatment factors, unrelated to chemotherapy per se, might increase vulnerability to post-treatment fatigue and cognitive dysfunction. Patients treated with (n = 28) or without chemotherapy (n = 37) and healthy controls (n = 32) were scanned coincident with pre- and one-month post-chemotherapy during a verbal working memory task (VWMT) and assessed for fatigue, worry, and cognitive dysfunction. fMRI activity measures in the frontoparietal executive network were used in multiple linear regression to predict post-treatment fatigue and cognitive function. The chemotherapy group reported greater pre-treatment fatigue than controls and showed compromised neural response, characterized by higher spatial variance in executive network activity, than the non-chemotherapy group. Also, the chemotherapy group reported greater post-treatment fatigue than the other groups. Linear regression indicated that pre-treatment spatial variance in executive network activation predicted post-treatment fatigue severity and cognitive complaints, while treatment group, age, hemoglobin, worry, and mean executive network activity levels did not predict these outcomes. Pre-treatment neural inefficiency (indexed by high spatial variance) in the executive network, which supports attention and working memory, was a better predictor of post-treatment cognitive and fatigue complaints than exposure to chemotherapy per se. This executive network compromise could be a pre-treatment neuromarker of risk, indicating patients most likely to benefit from early intervention for fatigue and cognitive dysfunction.
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Affiliation(s)
- Mary K Askren
- Integrated Brain Imaging Center, Department of Radiology, University of Washington, Seattle, USA,
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Berman MG, Askren MK, Jung M, Therrien B, Peltier S, Noll DC, Zhang M, Ossher L, Hayes DF, Reuter-Lorenz PA, Cimprich B. Pretreatment worry and neurocognitive responses in women with breast cancer. Health Psychol 2013; 33:222-31. [PMID: 23914817 DOI: 10.1037/a0033425] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
UNLABELLED [Correction Notice: An Erratum for this article was reported in Vol 33(3) of Health Psychology (see record 2014-07787-001). The name of author Misook Jung was misspelled as Mi Sook Jung. All versions of this article have been corrected.] OBJECTIVE Altered cognitive function has been associated with breast cancer treatment, particularly adjuvant chemotherapy, but the underlying neuropsychological mechanisms are not yet understood. Recent research indicates that compromised attention and working memory can exist before adjuvant treatment, implicating psychological distress, such as worry, as a possible contributor to observed alterations in cognitive function. We hypothesized that worry associated with breast cancer diagnosis might influence neurocognitive responses before any adjuvant therapy. DESIGN Fifty women, 25 due to receive chemotherapy and 25 due to receive radiation therapy, participated in the study. Women performed a verbal working memory task during functional magnetic resonance imaging scanning to assess neurocognitive responses before any adjuvant treatment and to test the relationship of such responses with self-reports of worry. RESULTS Although prechemotherapy participants showed significantly higher levels of worry compared with preradiation participants, higher worry, across both groups, was related to altered brain function. Specifically, increased worry was associated with reduced demand-related deactivation in default-mode regions, such as the precuneus/posterior cingulate. Reduced demand-related deactivation was critically related to worse behavioral performance, which was partially mediated by worry. CONCLUSION Worry appears to be a significant contributor to neurocognitive dysfunction independent of adjuvant treatment for breast cancer. These results suggest that alterations in cognitive function may develop before any chemotherapy treatment and that worry about cancer diagnosis may contribute to reports of "chemo brain" during treatment. Psychological interventions aimed at mitigating worry may help to alleviate cognitive dysfunction associated with life-threatening illness such as breast cancer.
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Affiliation(s)
- Marc G Berman
- Department of Psychology, Rotman Research Institute at Baycrest
| | | | | | | | - Scott Peltier
- Department of Biomedical Engineering, University of Michigan
| | - Douglas C Noll
- Department of Biomedical Engineering, University of Michigan
| | - Min Zhang
- Biostatistics Department, University of Michigan
| | - Lynn Ossher
- Department of Psychology, University of Michigan
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Li Z, Santhanam P, Coles CD, Lynch ME, Hamann S, Peltier S, Hu X. Prenatal cocaine exposure alters functional activation in the ventral prefrontal cortex and its structural connectivity with the amygdala. Psychiatry Res 2013; 213:47-55. [PMID: 23693086 PMCID: PMC3672335 DOI: 10.1016/j.pscychresns.2012.12.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2011] [Revised: 12/12/2012] [Accepted: 12/20/2012] [Indexed: 12/20/2022]
Abstract
Prenatal cocaine exposure (PCE) is associated with arousal dysregulation, and alterations of amygdala activity in response to emotional arousal have previously been reported. However, voluntary regulation of emotional affect, enabling appropriate neural response to different streams of stimuli, must also engage prefrontal regions, yet the impact of PCE on these prefrontal mechanisms has not been investigated. Recent neuroimaging studies have shown the involvement of ventral prefrontal cortex (vPFC) in the modulation of amygdala reactivity and the mediation of effective emotional regulation. Based on these findings, using functional magnetic resonance imaging (fMRI) and diffusion tensor imaging (DTI), the present study compared functional activations of the vPFC as well as its structural connectivity with the amygdala between groups of PCE and control adolescents. In a working memory task with emotional distracters, the PCE adolescents exhibited less capability of increasing their vPFC activation in response to increased memory load, which corresponded with their less suppressed amygdala activation. Reduced structural connectivity between the vPFC and the amygdala was also observed from DTI measurement in the PCE group. In addition, correlations between amygdala activation and (i) vPFC activation, as well as (ii) amygdala-vPFC structural connectivity, were observed in the control but not in the PCE group. These data complement previous findings of the impact of PCE on the activity of the amygdala and extend our understanding of the neurobiological mechanisms underlying the effect of PCE on arousal dysregulation reported in human and animal studies.
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Affiliation(s)
- Zhihao Li
- Biomedical Imaging Technology Center, Department of Biomedical Engineering, Emory University & Georgia Institute of Technology, Atlanta 30322, Georgia U.S.A
| | - Priya Santhanam
- Biomedical Imaging Technology Center, Department of Biomedical Engineering, Emory University & Georgia Institute of Technology, Atlanta 30322, Georgia U.S.A
| | - Claire D. Coles
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta 30322, Georgia U.S.A
| | - Mary Ellen Lynch
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta 30322, Georgia U.S.A
| | - Stephan Hamann
- Department of Psychology, Emory University, Atlanta 30322, Georgia U.S.A
| | - Scott Peltier
- Biomedical Imaging Technology Center, Department of Biomedical Engineering, Emory University & Georgia Institute of Technology, Atlanta 30322, Georgia U.S.A
| | - Xiaoping Hu
- Biomedical Imaging Technology Center, Department of Biomedical Engineering, Emory University & Georgia Institute of Technology, Atlanta 30322, Georgia U.S.A.,Correspondence: Xiaoping Hu, PhD., Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Woodruff Memorial Building, 101 Woodruff Circle, Suite 2001, Atlanta Georgia 30322, Tel: (404)-712-2615, Fax: (404)-712-2707,
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Abstract
Mastication is one of the most important orofacial functions. The neurobiological mechanisms of masticatory control have been investigated in animal models, but less so in humans. This project used functional connectivity magnetic resonance imaging (fcMRI) to assess the positive temporal correlations among activated brain areas during a gum-chewing task. Twenty-nine healthy young-adults underwent an fcMRI scanning protocol while they chewed gum. Seed-based fcMRI analyses were performed with the motor cortex and cerebellum as regions of interest. Both left and right motor cortices were reciprocally functionally connected and functionally connected with the post-central gyrus, cerebellum, cingulate cortex, and precuneus. The cerebellar seeds showed functional connections with the contralateral cerebellar hemispheres, bilateral sensorimotor cortices, left superior temporal gyrus, and left cingulate cortex. These results are the first to identify functional central networks engaged during mastication.
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Affiliation(s)
- A Quintero
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, MI 48109-1078, USA
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Cimprich B, Hayes DF, Askren MK, Jung MS, Berman MG, Ossher L, Therrien B, Reuter-Lorenz PA, Zhang M, Peltier S, Noll DC. Abstract S6-3: Neurocognitive impact in adjuvant chemotherapy for breast cancer linked to fatigue: A Prospective functional MRI study. Cancer Res 2012. [DOI: 10.1158/0008-5472.sabcs12-s6-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Our previous research showed evidence of compromised cognitive function prior to adjuvant chemotherapy for breast cancer, with fatigue as a contributory factor. Fatigue is a common symptom reported by women treated for breast cancer, yet its association with neurocognitive function has not been systematically examined. In this prospective study, we examined possible alterations in neurocognitive responses, namely, working memory, from pre- to post- adjuvant treatment during functional magnetic resonance imaging (fMRI) and further investigated whether early fatigue might be linked to cognitive alterations over time.
Methods: Women treated with either adjuvant chemotherapy (anthracyline-based combination regimen, n=29) or radiotherapy (n = 37) for localized breast cancer (Stages 0-IIIa) and age-matched healthy controls (n = 32) were enrolled. Participants performed a verbal working memory task (VWMT) with varying levels of demand for cognitive control during fMRI scanning and provided self-reports of fatigue (FACT-F) at two time points coincident with pre- and one-month post chemotherapy assessments. Imaging data were analyzed with general linear models using SPM5; comparative statistics were used to determine group differences, and correlational analyses addressed relationships of fatigue and neurocognitive measures.
Findings: The chemotherapy group reported significantly greater severity of fatigue (p < .05) and performed less accurately on the VWMT both pre- and one-month post-treatment than the other groups. Greater fatigue was correlated with poorer performance on the VWMT at both time points across groups, with stronger correlation post-treatment (r = −.22, p = .03). A 2 time-point (pre- vs. post-treatment) × 2 group (chemotherapy vs. controls) × 2 demand-level contrasts (high minus low vs. medium minus low) analytic model showed a significant group × time interaction (p < .05), mainly due to lower pre-treatment activation in an area of the prefrontal cortex supporting working memory, the anatomical left inferior frontal gyrus (LiFG), at higher task demand in the chemotherapy group. The radiotherapy group scored between the other two groups with intermediate activation of those contrasts. Of interest, lower pre-treatment activation in the LiFG in the high-low demand contrast predicted severity of fatigue across all participants at the post-treatment assessment (r = −.27, p < .01), linking early compromise in neurocognitive performance with greater fatigue over time.
Discussion: Neurocognitive alterations during a working memory task and greater fatigue were evident before any adjuvant chemotherapy for breast cancer. Notably, functional alterations in working memory processes were evident with fMRI before adjuvant chemotherapy and predicted severity of post-treatment fatigue. Importantly, across all participants, greater fatigue over time was correlated with reduced cognitive performance. Taken together, these findings indicate that pre-treatment neurocognitive compromise and fatigue are key contributors to the cognitive impact often attributed solely to chemotherapy. Early therapeutic interventions targeting fatigue may improve cognitive function and reduce the distress of “chemo brain” throughout the course of adjuvant treatment.
Citation Information: Cancer Res 2012;72(24 Suppl):Abstract nr S6-3.
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Affiliation(s)
- B Cimprich
- University of Michigan, Ann Arbor, MI; University of Washington, Seattle, WA; Rotman Research Institute at Baycrest, University of Toronto, Canada
| | - DF Hayes
- University of Michigan, Ann Arbor, MI; University of Washington, Seattle, WA; Rotman Research Institute at Baycrest, University of Toronto, Canada
| | - MK Askren
- University of Michigan, Ann Arbor, MI; University of Washington, Seattle, WA; Rotman Research Institute at Baycrest, University of Toronto, Canada
| | - MS Jung
- University of Michigan, Ann Arbor, MI; University of Washington, Seattle, WA; Rotman Research Institute at Baycrest, University of Toronto, Canada
| | - MG Berman
- University of Michigan, Ann Arbor, MI; University of Washington, Seattle, WA; Rotman Research Institute at Baycrest, University of Toronto, Canada
| | - L Ossher
- University of Michigan, Ann Arbor, MI; University of Washington, Seattle, WA; Rotman Research Institute at Baycrest, University of Toronto, Canada
| | - B Therrien
- University of Michigan, Ann Arbor, MI; University of Washington, Seattle, WA; Rotman Research Institute at Baycrest, University of Toronto, Canada
| | - PA Reuter-Lorenz
- University of Michigan, Ann Arbor, MI; University of Washington, Seattle, WA; Rotman Research Institute at Baycrest, University of Toronto, Canada
| | - M Zhang
- University of Michigan, Ann Arbor, MI; University of Washington, Seattle, WA; Rotman Research Institute at Baycrest, University of Toronto, Canada
| | - S Peltier
- University of Michigan, Ann Arbor, MI; University of Washington, Seattle, WA; Rotman Research Institute at Baycrest, University of Toronto, Canada
| | - DC Noll
- University of Michigan, Ann Arbor, MI; University of Washington, Seattle, WA; Rotman Research Institute at Baycrest, University of Toronto, Canada
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Suranadi IW, Demaison L, Chaté V, Peltier S, Richardson M, Leverve X. An increase in the redox state during reperfusion contributes to the cardioprotective effect of GIK solution. J Appl Physiol (1985) 2012; 113:775-84. [PMID: 22797310 DOI: 10.1152/japplphysiol.01153.2011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
This study aimed at determining whether glucose-insulin-potassium (GIK) solutions modify the NADH/NAD(+) ratio during postischemic reperfusion and whether their cardioprotective effect can be attributed to this change in part through reduction of the mitochondrial reactive oxygen species (ROS) production. The hearts of 72 rats were perfused with a buffer containing glucose (5.5 mM) and hexanoate (0.5 mM). They were maintained in normoxia for 30 min and then subjected to low-flow ischemia (0.5% of the preischemic coronary flow for 20 min) followed by reperfusion (45 min). From the beginning of ischemia, the perfusate was subjected to various changes: enrichment with GIK solution, enrichment with lactate (2 mM), enrichment with pyruvate (2 mM), enrichment with pyruvate (2 mM) plus ethanol (2 mM), or no change for the control group. Left ventricular developed pressure, heart rate, coronary flow, and oxygen consumption were monitored throughout. The lactate/pyruvate ratio of the coronary effluent, known to reflect the cytosolic NADH/NAD(+) ratio and the fructose-6-phosphate/dihydroxyacetone-phosphate (F6P/DHAP) ratio of the reperfused myocardium, were evaluated. Mitochondrial ROS production was also estimated. The GIK solution improved the recovery of mechanical function during reperfusion. This was associated with an enhanced cytosolic NADH/NAD(+) ratio and reduced mitochondrial ROS production. The cardioprotection was also observed when the hearts were perfused with fluids known to increase the cytosolic NADH/NAD(+) ratio (lactate, pyruvate plus ethanol) compared with the other fluids (control and pyruvate groups). The hearts with a high mechanical recovery also displayed a low F6P/DHAP ratio, suggesting that an accelerated glycolysis rate may be responsible for increased cytosolic NADH production. In conclusion, the cardioprotection induced by GIK solutions could occur through an increase in the cytosolic NADH/NAD(+) ratio, leading to a decrease in mitochondrial ROS production.
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Affiliation(s)
- I W Suranadi
- Faculty of Medicine, Udayana University, Denpasar, Bali, Indonesia
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Ramasubbu R, Masalovich S, Gaxiola I, Peltier S, Holtzheimer PE, Heim C, Goodyear B, Macqueen G, Mayberg HS. Differential neural activity and connectivity for processing one's own face: a preliminary report. Psychiatry Res 2011; 194:130-40. [PMID: 21962775 PMCID: PMC4410711 DOI: 10.1016/j.pscychresns.2011.07.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Revised: 06/01/2011] [Accepted: 07/06/2011] [Indexed: 11/24/2022]
Abstract
The experience of self is unique and pivotal to clinically relevant cognitive and emotional functions. However, well-controlled data on specialized brain regions and functional networks underlying the experience of self remain limited. This functional magnetic resonance imaging study investigated neural activity and connectivity specific to processing one's own face in healthy women by examining neural responses to the pictures of the subjects' own faces in contrast to faces of their own mothers, female friends and strangers during passive viewing, emotional and self-relevance evaluations. The processing of one's own face in comparison to processing of familiar faces revealed significant activity in right anterior insula (AI) and left inferior parietal lobule (IPL), and less activity in right posterior cingulate/precuneus (PCC/PCu) across all tasks. Further, the seed-based correlation analysis of right AI, and left IPL, showed differential functional networks in self and familiar faces contrasts. There were no differences in valence and saliency ratings between self and familiar others. Our preliminary results suggest that the self-experience cued by self-face is processed predominantly by brain regions and related networks that link interoceptive feelings and sense of body ownership to self-awareness and less by regions of higher order functioning such as autobiographical memories.
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Affiliation(s)
- Rajamannar Ramasubbu
- Department of Psychiatry/Clinical Neurosciences, University of Calgary, Hotchkiss Brain Institute, Calgary, Alberta, Canada.
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Ichesco E, Quintero A, Clauw DJ, Peltier S, Sundgren PM, Gerstner GE, Schmidt-Wilcke T. Altered functional connectivity between the insula and the cingulate cortex in patients with temporomandibular disorder: a pilot study. Headache 2011; 52:441-54. [PMID: 21929661 DOI: 10.1111/j.1526-4610.2011.01998.x] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Among the most common chronic pain conditions, yet poorly understood, are temporomandibular disorders (TMDs), with a prevalence estimate of 3-15% for Western populations. Although it is increasingly acknowledged that central nervous system mechanisms contribute to pain amplification and chronicity in TMDs, further research is needed to unravel neural correlates that might abet the development of chronic pain. OBJECTIVE The insular cortex (IC) and cingulate cortex (CC) are both critically involved in the experience of pain. The current study sought specifically to investigate IC-CC functional connectivity in TMD patients and healthy controls (HCs), both during resting state and during the application of a painful stimulus. METHODS Eight patients with TMD, and 8 age- and sex-matched HCs were enrolled in the present study. Functional magnetic resonance imaging data during resting state and during the performance of a pressure pain stimulus to the temple were acquired. Predefined seed regions were placed in the IC (anterior and posterior insular cortices) and the extracted signal was correlated with brain activity throughout the whole brain. Specifically, we were interested whether TMD patients and HCs would show differences in IC-CC connectivity, both during resting state and during the application of a painful stimulus to the face. RESULTS As a main finding, functional connectivity analyses revealed an increased functional connectivity between the left anterior IC and pregenual anterior cingulate cortex (ACC) in TMD patients, during both resting state and applied pressure pain. Within the patient group, there was a negative correlation between the anterior IC-ACC connectivity and clinical pain intensity as measured by a visual analog scale. CONCLUSIONS Since the pregenual region of the ACC is critically involved in antinociception, we hypothesize that an increase in anterior IC-ACC connectivity is indicative of an adaptation of the pain modulatory system early in the chronification process.
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Affiliation(s)
- Eric Ichesco
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
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46
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Li Z, Santhanam P, Coles CD, Lynch ME, Hamann S, Peltier S, Hu X. Increased "default mode" activity in adolescents prenatally exposed to cocaine. Hum Brain Mapp 2011; 32:759-70. [PMID: 20690141 DOI: 10.1002/hbm.21059] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Prenatal cocaine exposure (PCE) is associated with attention/arousal dysregulation and possible inefficiencies in some cognitive functions. However, the neurobiological bases of these teratogenic effects have not been well characterized. Because activities in the default mode network (DMN) reflect intrinsic brain functions that are closely associated with arousal regulation and cognition, alterations in the DMN could underlie cognitive effects related to PCE. With resting-state and task activation functional magnetic resonance imaging (fMRI), this study investigated the possible PCE related changes in functional brain connectivity and brain activation in the DMN. In the resting state, the PCE group was found to have stronger functional connectivity in the DMN, as compared to the nonexposed controls. During a working memory task with emotional distracters, the PCE group exhibited less deactivation in the DMN and their fMRI signal was more increased by emotional arousal. These data revealed additional neural effects related to PCE, and consistent with previous findings, indicate that PCE may affect behavior and functioning by increasing baseline arousal and altering the excitatory/inhibitory balancing mechanisms involved in cognitive resource allocation.
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Affiliation(s)
- Zhihao Li
- Biomedical Imaging Technology Center, Department of Biomedical Engineering, Emory University and Georgia Institute of Technology, 101 Woodruff Circle, Atlanta, GA 30322, USA
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Schmidt-Wilcke T, Glass J, Williams D, Clauw D, Peltier S. Unterschiedliche cerebrale Aktivierungsmuster bei Fibromyalgie (FM) Patientinnen und gesunden Kontrollprobandinnen bei der Bewältigung der Go No-Go Aufgabe erlauben eine Klassifizierung mittels Support Vector Machines (SVM). KLIN NEUROPHYSIOL 2011. [DOI: 10.1055/s-0031-1272780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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48
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Abstract
Major depressive disorder (MDD) has been characterized by excessive default-network activation and connectivity with the subgenual cingulate. These hyper-connectivities are often interpreted as reflecting rumination, where MDDs perseverate on negative, self-referential thoughts. However, the relationship between connectivity and rumination has not been established. Furthermore, previous research has not examined how connectivity with the subgenual cingulate differs when individuals are engaged in a task or not. The purpose of the present study was to examine connectivity of the default network specifically in the subgenual cingulate both on- and off-task, and to examine the relationship between connectivity and rumination. Analyses using a seed-based connectivity approach revealed that MDDs show more neural functional connectivity between the posterior-cingulate cortex and the subgenual-cingulate cortex than healthy individuals during rest periods, but not during task engagement. Importantly, these rest-period connectivities correlated with behavioral measures of rumination and brooding, but not reflection.
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Affiliation(s)
- Marc G Berman
- Department of Psychology, University of Michigan, 530 Church Street, Ann Arbor, MI 48109-1043, USA.
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Kwak Y, Peltier S, Bohnen NI, Müller MLTM, Dayalu P, Seidler RD. Altered resting state cortico-striatal connectivity in mild to moderate stage Parkinson's disease. Front Syst Neurosci 2010; 4:143. [PMID: 21206528 PMCID: PMC3009475 DOI: 10.3389/fnsys.2010.00143] [Citation(s) in RCA: 146] [Impact Index Per Article: 10.4] [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: 05/13/2010] [Accepted: 08/23/2010] [Indexed: 11/16/2022] Open
Abstract
Parkinson's disease (PD) is a progressive neurodegenerative disorder that is characterized by dopamine depletion in the striatum. One consistent pathophysiological hallmark of PD is an increase in spontaneous oscillatory activity in the basal ganglia thalamocortical networks. We evaluated these effects using resting state functional connectivity MRI in mild to moderate stage Parkinson's patients on and off l-DOPA and age-matched controls using six different striatal seed regions. We observed an overall increase in the strength of cortico-striatal functional connectivity in PD patients off l-DOPA compared to controls. This enhanced connectivity was down-regulated by l-DOPA as shown by an overall decrease in connectivity strength, particularly within motor cortical regions. We also performed a frequency content analysis of the BOLD signal time course extracted from the six striatal seed regions. PD off l-DOPA exhibited increased power in the frequency band 0.02–0.05 Hz compared to controls and to PD on l-DOPA. The l-DOPA associated decrease in the power of this frequency range modulated the l-DOPA associated decrease in connectivity strength between striatal seeds and the thalamus. In addition, the l-DOPA associated decrease in power in this frequency band correlated with the l-DOPA associated improvement in cognitive performance. Our results demonstrate that PD and l-DOPA modulate striatal resting state BOLD signal oscillations and cortico-striatal network coherence.
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Affiliation(s)
- Youngbin Kwak
- Neuroscience Program, University of Michigan Ann Arbor, MI, USA
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50
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Cimprich B, Reuter-Lorenz P, Nelson J, Clark PM, Therrien B, Normolle D, Berman MG, Hayes DF, Noll DC, Peltier S, Welsh RC. Prechemotherapy alterations in brain function in women with breast cancer. J Clin Exp Neuropsychol 2009; 32:324-31. [PMID: 19642048 DOI: 10.1080/13803390903032537] [Citation(s) in RCA: 121] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Despite clinical reports of cognitive deficits associated with cancer chemotherapy, the underlying brain mechanisms are not clear. This research examined selective attention and working memory using functional magnetic resonance imaging (fMRI) in women before chemotherapy for localized breast cancer. Patients were tested with an established selective attention and working memory task during fMRI. Compared with healthy controls, patients showed (a) bilateral brain activation in high-demand task conditions with recruitment of additional components of attention/working memory circuitry, and (b) less accurate and slower task performance. Results indicate compromised cognitive functioning before any chemotherapy and raise key questions for further research.
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