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Fornical Closed-Loop Stimulation for Alzheimer's Disease
Suhan Senova1, Antoine Chaillet2, Andres M Lozano3
1Krembil Research Institute, University Health Network, Toronto, ON, Canada; Division of Neurosurgery, Department of Surgery, Krembil Neuroscience Centre, University Health Network, University of Toronto, Toronto, ON, Canada; Departments of Neurosurgery and Psychiatry, Assistance Publique-Hôpitaux de Paris (APHP) Groupe Henri-Mondor Albert-Chenevier, 94000 Créteil, France; Institut National de la Santé et de la Recherche Médicale (INSERM) Unité 955, Mondor Institute of Biomedical Research (IMRB), Faculté de Médecine, Université Paris 12, Université Paris-Est Créteil (UPEC), 94010 Créteil, France.
Pharmacological treatments and open-loop deep brain stimulation (DBS) show limited success for Alzheimer's disease (AD) memory deficits. Future research should explore closed-loop DBS targeting memory circuits for potential AD treatment.
Area of Science:
- Neuroscience
- Neuromodulation
- Alzheimer's Disease Research
Background:
- Pharmacological therapies and open-loop deep brain stimulation (DBS) have demonstrated limited efficacy in addressing memory impairments associated with Alzheimer's disease (AD).
- Previous clinical trials employing open-loop DBS for AD have not yielded successful outcomes, highlighting the need for novel therapeutic approaches.
- Advancements in understanding memory processes and successful closed-loop DBS in other neurological conditions suggest a promising avenue for AD research.
Purpose of the Study:
- To investigate the potential of closed-loop deep brain stimulation (DBS) strategies targeting the fornix for treating memory deficits in Alzheimer's disease (AD) preclinical models.
- To explore the dynamics of memory processes through phase-specific modulation of hippocampal activity.
- To build upon recent findings in animal studies and clinical applications of closed-loop DBS.
Main Methods:
- Review of existing literature on pharmacological neuromodulation, open-loop DBS for AD, and closed-loop DBS for movement disorders.
- Analysis of preclinical findings on phase-specific modulation of hippocampal activity during memory tasks.
- Conceptual framework for applying closed-loop fornical DBS to AD models.
Main Results:
- Limited success of current pharmacological and open-loop DBS strategies for AD-related memory deficits.
- Evidence from preclinical studies suggests phase-specific modulation of hippocampal activity is crucial for memory.
- Successful application of closed-loop DBS in treating movement disorders indicates its potential for complex neurological functions.
Conclusions:
- Closed-loop fornical DBS presents a promising, yet unexplored, strategy for investigating and potentially treating memory deficits in Alzheimer's disease.
- Further research is warranted to explore the efficacy of closed-loop DBS in preclinical AD models.
- Understanding memory dynamics through advanced neuromodulation techniques is critical for developing effective AD therapies.