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Fernandes O, Ramos LR, Acchar MC, Sanchez TA. Migraine aura discrimination using machine learning: an fMRI study during ictal and interictal periods. Med Biol Eng Comput 2024:10.1007/s11517-024-03080-5. [PMID: 38637358 DOI: 10.1007/s11517-024-03080-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 03/26/2024] [Indexed: 04/20/2024]
Abstract
Functional magnetic resonance imaging (fMRI) studies on migraine with aura are challenging due to the rarity of patients with triggered cases. This study optimized methodologies to explore differences in ictal and interictal spatiotemporal activation patterns based on visual stimuli using fMRI in two patients with unique aura triggers. Both patients underwent separate fMRI sessions during the ictal and interictal periods. The Gaussian Process Classifier (GPC) was used to differentiate these periods by employing a machine learning temporal embedding approach and spatiotemporal activation patterns based on visual stimuli. When restricted to visual and occipital regions, GPC had an improved performance, with accuracy rates for patients A and B of roughly 86-90% and 77-81%, respectively (p < 0.01). The algorithm effectively differentiated visual stimulation and rest periods and identified times when aura symptoms manifested, as evident from the varying predicted probabilities in the GPC models. These findings contribute to our understanding of the role of visual processing and brain activity patterns in migraine with aura and the significance of temporal embedding techniques in examining aura phenomena. This finding has implications for diagnostic tools and therapeutic techniques, especially for patients suffering from aura symptoms.
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Affiliation(s)
- Orlando Fernandes
- Laboratory of Neuroimaging and Psychophysiology, Instituto de Psiquiatria, Faculdade de Medicina - Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Laboratório de Neurofisiolgia e Comportamento, Departamento de Fisiologia e Farmacologia, Instituto Biomédico - Universidade Federal Fluminense, Nitéroi, RJ, Brazil
| | - Lucas Rego Ramos
- Laboratory of Neuroimaging and Psychophysiology, Instituto de Psiquiatria, Faculdade de Medicina - Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Mariana Calixto Acchar
- Laboratory of Neuroimaging and Psychophysiology, Instituto de Psiquiatria, Faculdade de Medicina - Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Universidade Estacio de Sá (UNESA), Rio de Janeiro, RJ, Brazil
| | - Tiago Arruda Sanchez
- Laboratory of Neuroimaging and Psychophysiology, Instituto de Psiquiatria, Faculdade de Medicina - Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
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de Souza PM, Mota BEF, de Resende HDP, Fernandes O, Sanchez TA, Volchan E, Bearzoti E, Souza GGL. Impact of Loneliness on Training Gains with Heart Rate Variability Biofeedback in the Elderly: A Pilot Study. Appl Psychophysiol Biofeedback 2024:10.1007/s10484-024-09623-8. [PMID: 38453731 DOI: 10.1007/s10484-024-09623-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 01/03/2024] [Accepted: 01/30/2024] [Indexed: 03/09/2024]
Abstract
The negative impact of loneliness on the health of the elderly is particularly noticeable because of the effects of central control on the autonomic nervous system. Such an impact can be assessed through heart rate variability (HRV) analysis and can be modified using HRV biofeedback training. This study aimed to investigate the impact of different levels of social interaction reported by the elderly on HRV before and after training with HRV biofeedback and after a follow-up period. The participants of this pilot study comprised 16 elderly people of both sexes with a mean age of 71.20 ± 4.92 years. The participants were divided into two groups, the loneliness group (N = 8) and the no-loneliness group (N = 8), based on a combination of both criteria: the institutionalization condition (institutionalized or not) and the score on the loneliness scale (high or low). All participants had their HRV components recorded at baseline, after 14 training sessions with HRV biofeedback (three times a week, 15 min each for 4.5 weeks), and after 4.5 weeks of follow-up without training. After HRV biofeedback training, HRV components increased in both groups. However, the gains lasted at follow-up only in the no-loneliness group. In conclusion, loneliness can influence the maintenance of HRV after interruption of training with HRV biofeedback in the elderly. HRV biofeedback training can be an innovative and effective tool for complementary treatment of elderly individuals, but its effects on lonely elderly individuals need to be further investigated.
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Affiliation(s)
- Perciliany Martins de Souza
- Laboratory of Psychophysiology, Graduate Program in Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Brazil
| | - Bruna Eugênia Ferreira Mota
- Laboratory of Psychophysiology, Graduate Program in Health and Nutrition, Federal University of Ouro Preto, Ouro Preto, Brazil
| | | | - Orlando Fernandes
- Laboratory of Neurophysiology and Behavior, Department of Physiology and Pharmacology, Federal Fluminense University, Rio de Janeiro, Brazil
| | - Tiago Arruda Sanchez
- Laboratory of Neuroimaging and Psychophysiology, Department of Radiology, Medical School, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Eliane Volchan
- Laboratory of Neurobiology, Carlos Chagas Filho Biophysics Institute, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Eduardo Bearzoti
- Department of Statistics, Federal University of Ouro Preto, Ouro Preto, Brazil
| | - Gabriela Guerra Leal Souza
- Laboratory of Psychophysiology, Institute of Exact and Biological Sciences, Department of Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Brazil.
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Arruda Sanchez T, Ramos LR, Araujo F, Schenberg EE, Yonamine M, Lobo I, de Araujo DB, Luna LE. Emotion regulation effects of Ayahuasca in experienced subjects during implicit aversive stimulation: An fMRI study. J Ethnopharmacol 2024; 320:117430. [PMID: 37979818 DOI: 10.1016/j.jep.2023.117430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 08/15/2023] [Accepted: 11/12/2023] [Indexed: 11/20/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ayahuasca is a beverage used in Amazonian traditional medicine and it has been part of the human experience for millennia as well as other different psychoactive plants. Although Ayahuasca has been proposed as potentially therapeutic as an anxiolytic and antidepressant, whilst no studies have been carried out so far investigating their direct effect on brain emotional processing. AIM OF THE STUDY This study aimed to measure the emotional acute effect of Ayahuasca on brain response to implicit aversive stimulation using a face recognition task in functional magnetic resonance imaging (fMRI). MATERIALS AND METHODS Nineteen male experienced Ayahuasca users participated in this study in two fMRI sessions before and after 50 min of the Ayahuasca ingestion. Subjects were presented with pictures of neutral (A) and aversive (B) (fearful or disgusted) faces from the Pictures of Facial Affect Series. Subjects were instructed to identify the gender of the faces (gender discrimination task) while the emotional content was implicit. Subjective mood states were also evaluated before Ayahuasca intake and after the second fMRI session, using a visual analogue mood scale (VAMS). RESULTS During the aversive stimuli, the activity in the bilateral amygdala was attenuated by Ayahuasca (qFDR<0.05). Furthermore, in an exploratory analysis of the effects after intake, Ayahuasca enhances the activation in the insular cortex bilaterally, as well as in the right dorsolateral prefrontal cortex (qFDR<0.05). In the psychometric VAMS scale, subjects reported attenuation of both anxiety and mental sedation (p < 0.01) during acute effects. CONCLUSIONS Together, all reported results including neuroimaging, behavioral data and psychometric self-report suggest that Ayahuasca can promote an emotion regulation mechanism in response to aversive stimuli with corresponding improved cognition including reduced anxiety and mental sedation.
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Affiliation(s)
- Tiago Arruda Sanchez
- Laboratory of Neuroimaging and Psychophysiology, Faculdade de Medicina, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil.
| | - Lucas Rego Ramos
- Laboratory of Neuroimaging and Psychophysiology, Faculdade de Medicina, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| | - Felipe Araujo
- Laboratory of Neuroimaging and Psychophysiology, Faculdade de Medicina, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| | | | - Mauricio Yonamine
- Faculdade de Ciências Farmacêuticas, Universidade de São Paulo (USP), São Paulo, SP, Brazil
| | - Isabela Lobo
- Instituto de Biodiversidade e Sustentabilidade (NUPEM), UFRJ, Macaé, RJ, Brazil
| | - Draulio Barros de Araujo
- Brain Institute / Hospital Universitário Onofre Lopes, Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Luis Eduardo Luna
- Research Centre for the study of psychointegrator plants, Visionary Art and Consciousness - Wasiwaska, Florianópolis, SC, Brazil
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Fernandes O, Marra da Silva R, Rego Ramos L, Gama TM, Lobo I, Guerra Leal Souza G, Arruda Sanchez T. The impact of a violent community on mental health and the benefits of a sport program for social development. J Community Psychol 2023; 51:51-66. [PMID: 35583853 DOI: 10.1002/jcop.22877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 03/28/2022] [Accepted: 04/25/2022] [Indexed: 06/15/2023]
Abstract
The aim of the present study was to evaluate the impact of a violent environment on mental health and the impact of a sport for social development (SSD) program on quality of life, mental distress symptoms, and heart rate variability (HRV). HRV and psychometric data were measured from 20 men professional athletes assisted by the SSD and 20 men living in the same violent community. The comparison of groups revealed greater sympathetic parameters of HRV, positive affect, and quality of life in the SSD group. Multiple regression analysis showed that the quality of life in the SSD group was positively predicted by positive affect, while in the control group the quality of life was negatively predicted by their history of traumatic events. Both groups reported high levels of exposure to traumatic events and posttraumatic stress symptoms. However, this study demonstrates the benefits of SSD programs in mental health.
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Affiliation(s)
- Orlando Fernandes
- Laboratório de Neuroimagem e Psicofisiologia, Departamento de Radiologia, Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ruy Marra da Silva
- Laboratório de Neuroimagem e Psicofisiologia, Departamento de Radiologia, Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
- Programa de Pós-graduação em Cardiologia, Instituto do Coração Edson Saad, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Lucas Rego Ramos
- Laboratório de Neuroimagem e Psicofisiologia, Departamento de Radiologia, Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Tamires M Gama
- Laboratório de Neuroimagem e Psicofisiologia, Departamento de Radiologia, Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Isabela Lobo
- Grupo de Psicobiologia/Laboratório Integrado de Morfologia, Instituto de Biodiversidade e Sustentabilidade/NUPEM, Universidade Federal do Rio de Janeiro, Macaé, Rio de Janeiro, Brazil
| | - Gabriela Guerra Leal Souza
- Laboratório de Psicofisiologia, Departamento de Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Tiago Arruda Sanchez
- Laboratório de Neuroimagem e Psicofisiologia, Departamento de Radiologia, Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
- Programa de Pós-graduação em Cardiologia, Instituto do Coração Edson Saad, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
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da Silva RVB, Sanchez TA, Gama TM, Fontana AP, Gasparetto EL, Vincent MB. The digiti quinti sign in hemiplegic migraine: An fMRI study. J Neuroimaging 2022; 32:690-696. [PMID: 35191129 DOI: 10.1111/jon.12981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 02/03/2022] [Accepted: 02/04/2022] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND AND PURPOSE The digiti quinti sign (DQS) consists of a wider angle between the fourth and fifth fingers (ANG) indicative of subtle hemiparesis that has been found interictally in hemiplegic migraine (HM), suggesting a permanent subtle motor dysfunction. The aim of this study was to find a possible cortical origin for the DQS using blood oxygen level dependent (BOLD) functional (f) MRI. METHODS Eight HM patients and 13 controls entered the cross-sectional study. We examined hand dominance, performed handgrip tests with dynamometry, documented the DQS graphically in two consecutive sessions, and used BOLD-fMRI during a motor task specifically designed to measure the evoked activation in the motor cortex (M1). The brain activation at the symptomatic side was compared with the contralateral hemisphere and with both correspondent hemispheres in controls. RESULTS Subjects had a normal neurological examination, except for DQS in all HM patients. The activation amplitude (beta values) and the cluster extension (mm3 ) of the activation area in M1 was smaller at the affected side. Besides, the cluster extension correlated negatively with the disease time span. The ANG was wider bilaterally in patients and the fMRI signals were reduced in the patient's group. CONCLUSION The DQS, a relevant clinical finding in HM, indicates a disrupted cortical activation.
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Affiliation(s)
- Rafaela V B da Silva
- Department of Neurology, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Tiago Arruda Sanchez
- Department of Radiology, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Tamires Morett Gama
- Department of Radiology, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ana P Fontana
- Research Group in Stroke Rehabilitation (LAB.AVC.UFRJ), Faculty of Physiotherapy, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Emerson L Gasparetto
- Department of Radiology, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Maurice B Vincent
- Department of Neurology, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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Chaves ACS, Reis FJJ, Bandeira PM, Fernandes O, Arruda Sanchez T. Autonomic dysregulation and impairments in the recognition of facial emotional expressions in patients with chronic musculoskeletal pain. Scand J Pain 2021; 21:530-538. [PMID: 33725753 DOI: 10.1515/sjpain-2020-0132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 01/12/2021] [Indexed: 12/18/2022]
Abstract
OBJECTIVES Emotions are involved in the identification of safety cues in the environment, and are also related to social interaction through recognition of emotional facial expressions. Heart rate variability (HRV) can be an indicator of the adaptive response of the autonomic nervous system to stressful conditions, including pain. This study aimed to investigate the emotional processing in a sample of patients with chronic musculoskeletal by measuring the resting-state HRV and the ability to recognize facial emotion expressions. METHODS This cross-sectional study was composed of 40 participants with chronic musculoskeletal pain and 40 asymptomatic participants. Resting HRV was measured for 10 min. The facial emotion recognition task was presented in videos and included modification from a neutral expression to faces of fear, anger, sadness, happiness, and disgust. For the facial emotion recognition task, the hit rate (%) and response time for each emotional category were measured. RESULTS The symptomatic group had a mean high frequency (HF) lower (mean = 34.14; SD = 16.95; p<0.001) than the asymptomatic group (mean = 51.11; SD = 13.01; p<0.001). The emotional facial expressions of disgust (H (1, 80)=7.82; p<0.01), anger (H (1, 80)=13.56; p<0.01), sadness (H (1, 80)=6.58; p=0.01), and happiness (H (1, 80)=12.68; p<0.01) were those for which volunteers from the symptomatic group had a lower hit rate of correct answers compared to the asymptomatic group. The response time to corrected answers showed a major group effect (F (1.77)=21.11; p<0.001) and emotional category (F (4.308)=174.21; p<0.001), without presenting any interaction between the factors (F (4.308)=0.446; p=0.775). The symptomatic group was slower to perform the task of identifying facial emotional expression (7.066 s; SD = 1.188) than the participants in the asymptomatic group (6.298 s; SD = 1.203) for all emotional categories. CONCLUSIONS Participants with chronic musculoskeletal pain presented a lower vagal activity evidenced by HRV. Participants in the symptomatic group showed lower ability to recognize faces of disgust, anger, and sadness when compared to asymptomatic participants. Considering that individuals with low resting HF-HRV have difficulties with regulating their emotions, the lower vagal activity and lower ability to recognize faces of emotional expressions observed in chronic musculoskeletal pain may suggest alterations in emotional processing. This study may shed light on changes in the emotional processing and in the autonomic nervous system in this population.
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Affiliation(s)
- Anna C S Chaves
- Postgraduate Program in Medicine (Cardiology), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Felipe J J Reis
- Postgraduate Program in Medicine (Cardiology), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Pamela M Bandeira
- Postgraduate Program in Medicine (Cardiology), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Orlando Fernandes
- Postgraduate Program in Radiology, Department of Radiology, Faculty of Medicine, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Tiago Arruda Sanchez
- Postgraduate Program in Medicine (Cardiology), Department of Radiology, Faculty of Medicine, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
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Lima Portugal LC, Alves RDCS, Junior OF, Sanchez TA, Mocaiber I, Volchan E, Smith Erthal F, David IA, Kim J, Oliveira L, Padmala S, Chen G, Pessoa L, Pereira MG. Interactions between emotion and action in the brain. Neuroimage 2020; 214:116728. [PMID: 32199954 PMCID: PMC7485650 DOI: 10.1016/j.neuroimage.2020.116728] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 03/04/2020] [Accepted: 03/07/2020] [Indexed: 11/16/2022] Open
Abstract
A growing literature supports the existence of interactions between emotion and action in the brain, and the central participation of the anterior midcingulate cortex (aMCC) in this regard. In the present functional magnetic resonance imaging study, we sought to investigate the role of self-relevance during such interactions by varying the context in which threating pictures were presented (with guns pointed towards or away from the observer). Participants performed a simple visual detection task following exposure to such stimuli. Except for voxelwise tests, we adopted a Bayesian analysis framework which evaluated evidence for the hypotheses of interest, given the data, in a continuous fashion. Behaviorally, our results demonstrated a valence by context interaction such that there was a tendency of speeding up responses to targets after viewing threat pictures directed towards the participant. In the brain, interaction patterns that paralleled those observed behaviorally were observed most notably in the middle temporal gyrus, supplementary motor area, precentral gyrus, and anterior insula. In these regions, activity was overall greater during threat conditions relative to neutral ones, and this effect was enhanced in the directed towards context. A valence by context interaction was observed in the aMCC too, where we also observed a correlation (across participants) of evoked responses and reaction time data. Taken together, our study revealed the context-sensitive engagement of motor-related areas during emotional perception, thus supporting the idea that emotion and action interact in important ways in the brain.
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Affiliation(s)
- Liana Catarina Lima Portugal
- Department of Physiology and Pharmacology, Laboratory of Neurophysiology of Behavior, Biomedical Institute, Federal Fluminense University, Niterói, RJ, Brazil
| | - Rita de Cássia Soares Alves
- Department of Physiology and Pharmacology, Laboratory of Neurophysiology of Behavior, Biomedical Institute, Federal Fluminense University, Niterói, RJ, Brazil
| | - Orlando Fernandes Junior
- Laboratory of Neuroimaging and Psychophysiology, Department of Radiology, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Tiago Arruda Sanchez
- Laboratory of Neuroimaging and Psychophysiology, Department of Radiology, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Izabela Mocaiber
- Laboratory of Cognitive Psychophysiology, Department of Natural Sciences, Institute of Humanities and Health, Federal Fluminense University, Rio das Ostras, RJ, Brazil
| | - Eliane Volchan
- Laboratory of Neurobiology II, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Fátima Smith Erthal
- Laboratory of Neurobiology II, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Isabel Antunes David
- Department of Physiology and Pharmacology, Laboratory of Neurophysiology of Behavior, Biomedical Institute, Federal Fluminense University, Niterói, RJ, Brazil
| | - Jongwan Kim
- Department of Psychology, University of Maryland, College Park, MD, USA
| | - Leticia Oliveira
- Department of Physiology and Pharmacology, Laboratory of Neurophysiology of Behavior, Biomedical Institute, Federal Fluminense University, Niterói, RJ, Brazil
| | | | - Gang Chen
- Scientific and Statistical Computing Core, National Institute of Mental Health, USA
| | - Luiz Pessoa
- Department of Psychology, University of Maryland, College Park, MD, USA; Maryland Neuroimaging Center, University of Maryland, College Park, MD, USA
| | - Mirtes Garcia Pereira
- Department of Physiology and Pharmacology, Laboratory of Neurophysiology of Behavior, Biomedical Institute, Federal Fluminense University, Niterói, RJ, Brazil.
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Torres Berdeguez MB, Thomas S, Rafful P, Arruda Sanchez T, Medeiros Oliveira Ramos S, Souza Albernaz M, Vasconcellos de Sá L, Lopes de Souza SA, Mas Milian F, Silva AXD. A new approach for radiosynoviorthesis: A dose-optimized planning method based on Monte Carlo simulation and synovial measurement using 3D slicer and MRI. Med Phys 2017; 44:3821-3829. [PMID: 28419533 DOI: 10.1002/mp.12276] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 02/23/2017] [Accepted: 04/03/2017] [Indexed: 11/10/2022] Open
Abstract
PURPOSE Recently, there has been a growing interest in a methodology for dose planning in radiosynoviorthesis to substitute fixed activity. Clinical practice based on fixed activity frequently does not embrace radiopharmaceutical dose optimization in patients. The aim of this paper is to propose and discuss a dose planning methodology considering the radiological findings of interest obtained by three-dimensional magnetic resonance imaging combined with Monte Carlo simulation in radiosynoviorthesis treatment applied to hemophilic arthropathy. METHOD The parameters analyzed were: surface area of the synovial membrane (synovial size), synovial thickness and joint effusion obtained by 3D MRI of nine knees from nine patients on a SIEMENS AVANTO 1.5 T scanner using a knee coil. The 3D Slicer software performed both the semiautomatic segmentation and quantitation of these radiological findings. A Lucite phantom 3D MRI validated the quantitation methodology. The study used Monte Carlo N-Particle eXtended code version 2.6 for calculating the S-values required to set up the injected activity to deliver a 100 Gy absorbed dose at a determined synovial thickness. The radionuclides assessed were: 90Y, 32P, 188Re, 186Re, 153Sm, and 177Lu, and the present study shows their effective treatment ranges. RESULT The quantitation methodology was successfully tested, with an error below 5% for different materials. S-values calculated could provide data on the activity to be injected into the joint, considering no extra-articular leakage from joint cavity. Calculation of effective treatment range could assist with the therapeutic decision, with an optimized protocol for dose prescription in RSO. CONCLUSION Using 3D Slicer software, this study focused on segmentation and quantitation of radiological features such as joint effusion, synovial size, and thickness, all obtained by 3D MRI in patients' knees with hemophilic arthropathy. The combination of synovial size and thickness with the parameters obtained by Monte Carlo simulation such as effective treatment range and S-value, from which is calculated the injected activity, could be used for treatment planning in RSO. Data from this methodology could be a potential aid to clinical decision making by selecting the most suitable radionuclide; justifying the procedure, fractioning the dose, and the calculated injected activity for children and adolescents, considering both the synovial size and thickness.
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Affiliation(s)
- Mirta Bárbara Torres Berdeguez
- Department of Nuclear Engineering, Federal University of Rio de Janeiro, Horácio Macedo Ave., 2030 Block G-Room 206, Technology Center,, University City, Fundão Island, 21941-914,, Rio de Janeiro, RJ, Brazil
| | - Sylvia Thomas
- Department of Nuclear Medicine, Clementino Fraga Filho University Hospital of Federal University of Rio de Janeiro, Street Rodolpho Paulo Rocco, 255, University City, Fundão Island, 21941-913,, Rio de Janeiro, RJ, Brazil
| | - Patricia Rafful
- Department of Radiology, Clementino Fraga Filho University Hospital of Federal University of Rio de Janeiro, Street Rodolpho Paulo Rocco, 255, University City, Fundão Island, 21941-913,, Rio de Janeiro, RJ, Brazil
| | - Tiago Arruda Sanchez
- Department of Radiology, Clementino Fraga Filho University Hospital of Federal University of Rio de Janeiro, Street Rodolpho Paulo Rocco, 255, University City, Fundão Island, 21941-913,, Rio de Janeiro, RJ, Brazil
| | - Susie Medeiros Oliveira Ramos
- Department of Nuclear Medicine, Clementino Fraga Filho University Hospital of Federal University of Rio de Janeiro, Street Rodolpho Paulo Rocco, 255, University City, Fundão Island, 21941-913,, Rio de Janeiro, RJ, Brazil
| | - Marta Souza Albernaz
- Department of Nuclear Medicine, Clementino Fraga Filho University Hospital of Federal University of Rio de Janeiro, Street Rodolpho Paulo Rocco, 255, University City, Fundão Island, 21941-913,, Rio de Janeiro, RJ, Brazil
| | - Lidia Vasconcellos de Sá
- Institute of Radiation Protection and Dosimetry, Brazilian Nuclear Energy Commission, Salvador Allende Ave., s/n, Recreio dos Bandeirantes,, 22783-127,, Rio de Janeiro, RJ, Brazil
| | - Sergio Augusto Lopes de Souza
- Department of Nuclear Medicine, Clementino Fraga Filho University Hospital of Federal University of Rio de Janeiro, Street Rodolpho Paulo Rocco, 255, University City, Fundão Island, 21941-913,, Rio de Janeiro, RJ, Brazil
| | - Felix Mas Milian
- CPqCTR - Research Center for Radiation Sciences and Technology, State University of Santa Cruz, Rodovia Ilhéus-Itabuna, Km 16, Salobrinho, 45662000, Ilhéus, BA, Brazil
| | - Ademir Xavier da Silva
- Department of Nuclear Engineering, Federal University of Rio de Janeiro, Horácio Macedo Ave., 2030 Block G-Room 206, Technology Center,, University City, Fundão Island, 21941-914,, Rio de Janeiro, RJ, Brazil
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Delaveau P, Arruda Sanchez T, Steffen R, Deschet K, Jabourian M, Perlbarg V, Gasparetto EL, Dubal S, Costa E Silva J, Fossati P. Default mode and task-positive networks connectivity during the N-Back task in remitted depressed patients with or without emotional residual symptoms. Hum Brain Mapp 2017; 38:3491-3501. [PMID: 28390165 DOI: 10.1002/hbm.23603] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 03/13/2017] [Accepted: 03/27/2017] [Indexed: 12/28/2022] Open
Abstract
Clinical remission of depression may be associated with emotional residual symptoms. We studied the association of emotional blunting, rumination with neural networks dynamics in remitted depressed patients and cognitive performance during an N-Back task. Twenty-six outpatients in remission of depression (Hamilton Depressive rating scale score <7) performed an N-Back task during fMRI assessment. All patients had been treated by paroxetine for a minimum of 4 months. Two subgroups of patients [Nonemotionally blunted (NEB) = 14 and emotionally blunted (EB) = 12] were determined. To identify functional network maps across participants, the Network Detection using Independent Component Analysis approach was employed. Within and between Task Positive Network (TPN) and Default Mode Network (DMN) connectivity were assessed and related to variability of performance on the N-Back task and rumination. EB and NEB patients were not different for the level of accurate responses at the N-Back. However over the entire working memory task, the negative correlation between DMN and TPN was significantly lower in the EB than NEB group and was differently related to cognitive performance and rumination. The stronger the negative correlation between DMN and TPN was, the less variable the reaction time during 3-Back task in NEB patients. Moreover the greater the negative correlation between DMN and TPN was, the lower the rumination score in EB patients. Emotional blunting may be associated with compromised monitoring of rumination and cognitive functioning in remitted depressed patients through altered cooperation between DMN and TPN. The study suggests clinical remission in depression is associated with biological heterogeneity. Hum Brain Mapp 38:3491-3501, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Pauline Delaveau
- Sorbonne Universités, UPMC Univ Paris 06, Inserm, CNRS, APHP, Institut du cerveau et de la moelle (ICM)-Hôpital Pitié Salpêtrière, Boulevard de l'hôpital, Paris, France
| | - Tiago Arruda Sanchez
- Department of Radiology, Universidade Federal do Rio de Janeiro, Medical School, Rio de Janeiro, Brazil
| | - Ricardo Steffen
- Department of Psychiatry, Clinical Research Center in Psychiatry, Hospital Santa Casa de Misericórdia do Rio de Janeiro, Brazil
| | - Karine Deschet
- Institut de Recherches Internationales Servier, Suresnes, France
| | | | - Vincent Perlbarg
- IHU-A-ICM, Bioinformatics/Biostatistics Plateform, Paris, France.,INSERM U1146, CNRS UMR7371, laboratoire d'imagerie biomédicale, Sorbonne université, UPMC université, Paris 60 UMCR2, Hôpital de la Pitié-Salpêtrière, Paris, France
| | | | - Stéphanie Dubal
- Sorbonne Universités, UPMC Univ Paris 06, Inserm, CNRS, APHP, Institut du cerveau et de la moelle (ICM)-Hôpital Pitié Salpêtrière, Boulevard de l'hôpital, Paris, France
| | - Jorge Costa E Silva
- Institut Brésilien du Cerveau, INBRACER, RJ, Brazil, Université Catholique de Rio de Janeiro, Brazil
| | - Philippe Fossati
- Sorbonne Universités, UPMC Univ Paris 06, Inserm, CNRS, APHP, Institut du cerveau et de la moelle (ICM)-Hôpital Pitié Salpêtrière, Boulevard de l'hôpital, Paris, France
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Bizzo BC, Sanchez TA, Tukamoto G, Zimmermann N, Netto TM, Gasparetto EL. Cortical Thickness and Episodic Memory Impairment in Systemic Lupus Erythematosus. J Neuroimaging 2016; 27:122-127. [DOI: 10.1111/jon.12394] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 08/19/2016] [Accepted: 08/20/2016] [Indexed: 11/27/2022] Open
Affiliation(s)
- Bernardo Canedo Bizzo
- Department of Radiology, Hospital Universitário Clementino Fraga Filho, Federal University of Rio de Janeiro; Cidade Universitária; Ilha do Fundão Rio de Janeiro, RJ Brazil
- Clínica de Diagnóstico por Imagem (CDPI); Barra da Tijuca; Rio de Janeiro, RJ Brazil
| | - Tiago Arruda Sanchez
- Department of Radiology, Hospital Universitário Clementino Fraga Filho, Federal University of Rio de Janeiro; Cidade Universitária; Ilha do Fundão Rio de Janeiro, RJ Brazil
| | - Gustavo Tukamoto
- Clínica de Diagnóstico por Imagem (CDPI); Barra da Tijuca; Rio de Janeiro, RJ Brazil
| | - Nicolle Zimmermann
- Department of Radiology, Hospital Universitário Clementino Fraga Filho, Federal University of Rio de Janeiro; Cidade Universitária; Ilha do Fundão Rio de Janeiro, RJ Brazil
| | - Tania Maria Netto
- Department of Radiology, Hospital Universitário Clementino Fraga Filho, Federal University of Rio de Janeiro; Cidade Universitária; Ilha do Fundão Rio de Janeiro, RJ Brazil
| | - Emerson Leandro Gasparetto
- Department of Radiology, Hospital Universitário Clementino Fraga Filho, Federal University of Rio de Janeiro; Cidade Universitária; Ilha do Fundão Rio de Janeiro, RJ Brazil
- Clínica de Diagnóstico por Imagem (CDPI); Barra da Tijuca; Rio de Janeiro, RJ Brazil
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Batista e Sá VW, Gomes MK, Rangel MLS, Sanchez TA, Moreira FA, Hoefle S, Souto IB, da Cunha AJLA, Fontana AP, Vargas CD. Primary Motor Cortex Representation of Handgrip Muscles in Patients with Leprosy. PLoS Negl Trop Dis 2015. [PMID: 26203653 PMCID: PMC4512691 DOI: 10.1371/journal.pntd.0003944] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Leprosy is an endemic infectious disease caused by Mycobacterium leprae that predominantly attacks the skin and peripheral nerves, leading to progressive impairment of motor, sensory and autonomic function. Little is known about how this peripheral neuropathy affects corticospinal excitability of handgrip muscles. Our purpose was to explore the motor cortex organization after progressive peripheral nerve injury and upper-limb dysfunction induced by leprosy using noninvasive transcranial magnetic stimulation (TMS). METHODS In a cross-sectional study design, we mapped bilaterally in the primary motor cortex (M1) the representations of the hand flexor digitorum superficialis (FDS), as well as of the intrinsic hand muscles abductor pollicis brevis (APB), first dorsal interosseous (FDI) and abductor digiti minimi (ADM). All participants underwent clinical assessment, handgrip dynamometry and motor and sensory nerve conduction exams 30 days before mapping. Wilcoxon signed rank and Mann-Whitney tests were performed with an alpha-value of p<0.05. FINDINGS Dynamometry performance of the patients' most affected hand (MAH), was worse than that of the less affected hand (LAH) and of healthy controls participants (p = 0.031), confirming handgrip impairment. Motor threshold (MT) of the FDS muscle was higher in both hemispheres in patients as compared to controls, and lower in the hemisphere contralateral to the MAH when compared to that of the LAH. Moreover, motor evoked potential (MEP) amplitudes collected in the FDS of the MAH were higher in comparison to those of controls. Strikingly, MEPs in the intrinsic hand muscle FDI had lower amplitudes in the hemisphere contralateral to MAH as compared to those of the LAH and the control group. Taken together, these results are suggestive of a more robust representation of an extrinsic hand flexor and impaired intrinsic hand muscle function in the hemisphere contralateral to the MAH due to leprosy. CONCLUSION Decreased sensory-motor function induced by leprosy affects handgrip muscle representation in M1.
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Affiliation(s)
- Vagner Wilian Batista e Sá
- Núcleo de Pesquisas em Fisioterapia, Universidade Castelo Branco, Rio de Janeiro, Rio de Janeiro, Brazil
- Programa de Pós-Graduação em Clínica Médica, Hospital Universitário Clementino Fraga Filho e Departamento de Medicina de Família e Comunidade/Faculdade de Medicina da Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
- Laboratório de Neurobiologia II, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
- * E-mail: (VWBeS); (CDV)
| | - Maria Katia Gomes
- Programa de Pós-Graduação em Clínica Médica, Hospital Universitário Clementino Fraga Filho e Departamento de Medicina de Família e Comunidade/Faculdade de Medicina da Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Maria Luíza Sales Rangel
- Laboratório de Neurobiologia II, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Tiago Arruda Sanchez
- Programa de Pós-Graduação em Clínica Médica, Hospital Universitário Clementino Fraga Filho e Departamento de Medicina de Família e Comunidade/Faculdade de Medicina da Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Filipe Azaline Moreira
- Programa de Pós-Graduação em Clínica Médica, Hospital Universitário Clementino Fraga Filho e Departamento de Medicina de Família e Comunidade/Faculdade de Medicina da Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Sebastian Hoefle
- Laboratório de Neurobiologia II, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
- Cognitive and Behavioral Neuroscience Unit and Neuroinformatics Workgroup, D'Or Institute for Research and Education, Rio de Janeiro, Brazil
| | - Inaiacy Bittencourt Souto
- Programa de Pós-Graduação em Clínica Médica, Hospital Universitário Clementino Fraga Filho e Departamento de Medicina de Família e Comunidade/Faculdade de Medicina da Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Antônio José Ledo Alves da Cunha
- Programa de Pós-Graduação em Clínica Médica, Hospital Universitário Clementino Fraga Filho e Departamento de Medicina de Família e Comunidade/Faculdade de Medicina da Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ana Paula Fontana
- Programa de Pós-Graduação em Clínica Médica, Hospital Universitário Clementino Fraga Filho e Departamento de Medicina de Família e Comunidade/Faculdade de Medicina da Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Claudia Domingues Vargas
- Laboratório de Neurobiologia II, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
- Instituto de Neurologia Deolindo Couto da Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
- * E-mail: (VWBeS); (CDV)
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Córdova-Fraga T, de Araujo DB, Sanchez TA, Elias J, Carneiro AAO, Brandt-Oliveira R, Sosa M, Baffa O. Euterpe Olerácea (Açaí) as an alternative oral contrast agent in MRI of the gastrointestinal system: preliminary results. Magn Reson Imaging 2004; 22:389-93. [PMID: 15062934 DOI: 10.1016/j.mri.2004.01.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2003] [Accepted: 01/26/2004] [Indexed: 10/26/2022]
Abstract
Using contrast agents is a common practice in medical imaging protocols. Paramagnetic properties of certain compounds present in contrast agents can affect magnetic resonance imaging (MRI) signals. For abdominal applications, they are usually injected, but may also be administered orally. However, their use as a routine technique is limited, mainly due to the lack of appropriate oral contrast agents. We herein present the preliminary characterization and results for implementation of Euterpe Olerácea (popularly named Açaí) as a possible clinical oral contrast agent for MRI of the gastrointestinal tract. The pulp of Açaí, a fruit from the Amazon area, presented an increase in T(1)-weighted MRI signal, equivalent to that of gadolinium-diethyltriamine pentaacetic acid, and a decrease in T(2)-weighted images. We looked for intrinsic properties that could be responsible for the T(1) signal enhancement and T(2) opacification. Atomic absorption spectra revealed the presence of Fe, Mn and Cu ions in Açai. The presence of such ions contribute to the susceptometric value found of chi = -4.83 x 10(-6). This finding assents with the hypothesis that image contrast changes were due to the presence of paramagnetic material. The first measurements in vivo demonstrate a clear increase of contrast, in T(1)-weighted images, due to the presence of Açaí. Consistently, the opacification in a T(2)-weighted acquisition was evident, revealing a good contrast on bowel walls of gastric tissues.
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Affiliation(s)
- T Córdova-Fraga
- Department de Fisica e Matematica, FFCLRP, Universidade de Sao Paulo, Av. Bandeirantes 3900, Ribeirao Preto Sao Paulo 14, 040-91, Brazil
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Sanchez TA, Habib I, Leland Booth J, Evetts SM, Metcalf JP. Zinc finger and carboxyl regions of adenovirus E1A 13S CR3 are important for transactivation of the cytomegalovirus major immediate early promoter by adenovirus. Am J Respir Cell Mol Biol 2000; 23:670-7. [PMID: 11062146 DOI: 10.1165/ajrcmb.23.5.3675] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Reactivation of latent cytomegalovirus (CMV) is an important cause of disease in susceptible patients. We previously demonstrated that an adenovirus early gene product can transactivate the CMV major immediate early (IE) promoter in inflammatory cells. This effect was due to the conserved region 3 (CR3) of the adenovirus E1A 13S gene product. There are two domains in the CR3 region, a zinc finger (aa 147-177) and a carboxyl (aa 180-188) domain. Both are crucial for transactivation of downstream promoter elements of adenovirus in E1A 13S. We sought to determine if either or both of these specific domains is also necessary for transactivation of the CMV IE promoter by the adenovirus E1A 13S gene product. We cotransfected T-lymphocyte Jurkat cells and monocyte/macrophage-like THP-1 cells with plasmids expressing wild-type (WT) or CR3 mutant E1A 13S and a CMV IE chloramphenicol acetyltransferase (CAT) reporter construct. With extracts of cells coinfected with E1A WT set to 100%, mutation in the zinc finger domain, the carboxyl domain, or both domains decreased CMV IE CAT activity by >/= 96%. In contrast, a mutation in the region between the zinc finger and carboxyl domains reduced CMV IE CAT activity by only 24 to 26%. Mixing studies in Jurkat cells confirmed the importance of these domains. We also evaluated the active site of the CMV IE promoter involved in transactivation in THP-1 cells using CMV IE promoter deletions and single promoter element constructs. These studies showed that progressive deletion of the 19-bp CMV IE repeats containing cyclic AMP response element binding protein/activating transcription factor (CREB/ATF) sites resulted in progressive loss of activity. The importance of this element was confirmed using single promoter elements containing CMV IE 16-, 18-, 19-, and 21-bp repeats. Finally, using a 19-bp single promoter element construct and the CR3 mutants we demonstrated that mutations in the zinc finger (C171S) carboxyl region (S185N) or both regions (C171S/ S185N) resulted in significant (83, 94, and 85%) loss of activity. We conclude that the zinc finger and carboxyl domains of the CR3 region of E1A 13S are necessary for transactivation of the CMV promoter and that this occurs mainly through activation of the 19-bp CREB/ATF site of the promoter.
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Affiliation(s)
- T A Sanchez
- Pulmonary and Critical Care Division, Department of Internal Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104, USA
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