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Scherer M, Harmsen IE, Samuel N, Elias GJB, Germann J, Boutet A, MacLeod CE, Giacobbe P, Rowland NC, Lozano AM, Milosevic L. Oscillatory network markers of subcallosal cingulate deep brain stimulation for depression. Brain Stimul 2023; 16:1764-1775. [PMID: 38061548 PMCID: PMC10947774 DOI: 10.1016/j.brs.2023.11.016] [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: 08/23/2023] [Revised: 11/12/2023] [Accepted: 11/27/2023] [Indexed: 12/24/2023] Open
Abstract
Identifying functional biomarkers related to treatment success can aid in expediting therapy optimization, as well as contribute to a better understanding of the neural mechanisms of the treatment-resistant depression (TRD) and subcallosal cingulate deep brain stimulation (SCC-DBS). Magnetoencephalography data were obtained from 16 individuals with SCC-DBS for TRD and 25 healthy subjects. The first objective of the study was to identify region-specific oscillatory modulations that both (i) discriminate individuals with TRD (with SCC-DBS OFF) from healthy controls, and (ii) discriminate TRD treatment responders from non-responders (with SCC-DBS ON). The second objective of this work was to further explore the effects of stimulation intensity and frequency on oscillatory activity in the identified brain regions of interest. Oscillatory power analyses led to the identification of brain regions that differentiated responders from non-responders based on modulations of increased alpha (8-12 Hz) and decreased gamma (32-116 Hz) power within nodes of the default mode, central executive, and somatomotor networks, Broca's area, and lingual gyrus. Within these nodes, it was also found that low stimulation frequency had stronger effects on oscillatory modulation than increased stimulation intensity. The identified functional network biomarkers implicate modulation of TRD-related activity in brain regions involved in emotional control/processing, motor control, and the interaction between speech, vision, and memory, which have all been implicated in depression. These electrophysiological biomarkers have the potential to be used as functional proxies for therapy optimization. Additional stimulation parameter analyses revealed that oscillatory modulations can be strengthened by increasing stimulation intensity or reducing frequency, which may represent potential avenues of direction in non-responders.
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Affiliation(s)
- M Scherer
- Krembil Brain Institute, University Health Network, Toronto, Canada; Institute of Biomedical Engineering, University of Toronto, Canada
| | - I E Harmsen
- Krembil Brain Institute, University Health Network, Toronto, Canada; Division of Neurosurgery, Department of Surgery, Toronto Western Hospital, University of Toronto, Toronto, Ontario, Canada; Mitchell Goldhar MEG Unit, University Health Network, Toronto, Canada
| | - N Samuel
- Krembil Brain Institute, University Health Network, Toronto, Canada; Division of Neurosurgery, Department of Surgery, Toronto Western Hospital, University of Toronto, Toronto, Ontario, Canada
| | - G J B Elias
- Krembil Brain Institute, University Health Network, Toronto, Canada; Division of Neurosurgery, Department of Surgery, Toronto Western Hospital, University of Toronto, Toronto, Ontario, Canada
| | - J Germann
- Krembil Brain Institute, University Health Network, Toronto, Canada; Division of Neurosurgery, Department of Surgery, Toronto Western Hospital, University of Toronto, Toronto, Ontario, Canada
| | - A Boutet
- Krembil Brain Institute, University Health Network, Toronto, Canada; Joint Department of Medical Imaging, University of Toronto, Canada
| | - C E MacLeod
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario, Canada
| | - P Giacobbe
- Department of Psychiatry, Sunnybrook Health Sciences, University of Toronto, Toronto, Ontario, Canada
| | - N C Rowland
- Department of Neurosurgery, Medical University of South Carolina, Charleston, SC, USA; Murray Center for Research on Parkinson's Disease and Related Disorders, Medical University of South Carolina, Charleston, SC, USA
| | - A M Lozano
- Krembil Brain Institute, University Health Network, Toronto, Canada; Division of Neurosurgery, Department of Surgery, Toronto Western Hospital, University of Toronto, Toronto, Ontario, Canada; Center for Advancing Neurotechnological Innovation to Application (CRANIA), Toronto, Canada
| | - L Milosevic
- Krembil Brain Institute, University Health Network, Toronto, Canada; Institute of Biomedical Engineering, University of Toronto, Canada; Center for Advancing Neurotechnological Innovation to Application (CRANIA), Toronto, Canada; KITE Research Institute, University Health Network, Toronto, Canada.
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Bouyer J, Culbert NJ, Dicko AH, Pacheco MG, Virginio J, Pedrosa MC, Garziera L, Pinto ATM, Klaptocz A, Germann J, Wallner T, Salvador-Herranz G, Herrero RA, Yamada H, Balestrino F, Vreysen MJB. Field performance of sterile male mosquitoes released from an uncrewed aerial vehicle. Sci Robot 2020; 5:5/43/eaba6251. [DOI: 10.1126/scirobotics.aba6251] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 05/22/2020] [Indexed: 11/02/2022]
Abstract
Genetic control methods of mosquito vectors of malaria, dengue, yellow fever, and Zika are becoming increasingly popular due to the limitations of other techniques such as the use of insecticides. The sterile insect technique is an effective genetic control method to manage insect populations. However, it is crucial to release sterile mosquitoes by air to ensure homogeneous coverage, especially in large areas. Here, we report a fully automated adult mosquito release system operated from an uncrewed aerial vehicle or drone. Our system, developed and tested in Brazil, enabled a homogeneous dispersal of sterile male Aedes aegypti while maintaining their quality, leading to a homogeneous sterile-to-wild male ratio due to their aggregation in the same sites. Our results indicate that the released sterile males were able to compete with the wild males in mating with the wild females; thus, the sterile males were able to induce sterility in the native female population. The use of drones to implement the sterile insect technique will lead to improvements in areal coverage and savings in operational costs due to the requirement of fewer release sites and field staff.
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Affiliation(s)
- J. Bouyer
- Unité Mixte de Recherche ASTRE, CIRAD, INRA, Univ Montpellier, Montpellier, France
| | - N. J. Culbert
- Insect Pest Control Laboratory, Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture, A-1400 Vienna, Austria
- Institute of Integrative Biology and the Centre for Genomic Research, University of Liverpool, Liverpool, Merseyside, UK
| | - A. H. Dicko
- WeRobotics, Rue d’Italie 11, 1204 Geneva, Switzerland
- Statistics for Development–STATS4D, Sacre Coeur III, 1 bis, P.O 11000, Dakar, Senegal
| | - M. Gomez Pacheco
- Biofábrica Moscamed Brasil, Av. C1, 992 - Quadra D 13, Lote 15, Distrito Industrial do São Francisco, Bahia, Brazil
| | - J. Virginio
- Biofábrica Moscamed Brasil, Av. C1, 992 - Quadra D 13, Lote 15, Distrito Industrial do São Francisco, Bahia, Brazil
| | - M. C. Pedrosa
- Biofábrica Moscamed Brasil, Av. C1, 992 - Quadra D 13, Lote 15, Distrito Industrial do São Francisco, Bahia, Brazil
| | - L. Garziera
- Biofábrica Moscamed Brasil, Av. C1, 992 - Quadra D 13, Lote 15, Distrito Industrial do São Francisco, Bahia, Brazil
| | - A. T. Macedo Pinto
- Biofábrica Moscamed Brasil, Av. C1, 992 - Quadra D 13, Lote 15, Distrito Industrial do São Francisco, Bahia, Brazil
| | - A. Klaptocz
- WeRobotics, Rue d’Italie 11, 1204 Geneva, Switzerland
| | - J. Germann
- WeRobotics, Rue d’Italie 11, 1204 Geneva, Switzerland
| | - T. Wallner
- Insect Pest Control Laboratory, Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture, A-1400 Vienna, Austria
- WeRobotics, Rue d’Italie 11, 1204 Geneva, Switzerland
| | - G. Salvador-Herranz
- WeRobotics, Rue d’Italie 11, 1204 Geneva, Switzerland
- Instituto de Investigación e Innovación en Bioingeniería (I3B), Universitat Politècnica de València, Camino de Vera, s/n, 46022 Valencia, Spain
| | - R. Argiles Herrero
- Insect Pest Control Laboratory, Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture, A-1400 Vienna, Austria
| | - H. Yamada
- Insect Pest Control Laboratory, Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture, A-1400 Vienna, Austria
| | - F. Balestrino
- Insect Pest Control Laboratory, Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture, A-1400 Vienna, Austria
- Centro Agricoltura Ambiente “Giorgio Nicoli” S.r.l. (CAA), Via Sant’Agata, 835, 40014 Crevalcore BO, Italy
| | - M. J. B. Vreysen
- Insect Pest Control Laboratory, Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture, A-1400 Vienna, Austria
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