Transdermal electrophysiological recordings of diet-induced small fiber peripheral neuropathy using a needle electrode array in mice and man

BackgroundDiabetic peripheral neuropathy (DPN) is a common complication of diabetes. Proactive treatment options remain limited, which is exacerbated by a lack of sensitive and convenient diagnostics, especially early in disease progression or specifically to assess small fiber neuropathy (SFN), the...

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Main Authors: Magdalena Blaszkiewicz, Lydia Caron, Brooke Villinski, Joshua Passarelli, Julia M. Towne, Naeemah M. Story, Erin Merchant, Furrukh S. Khan, Nuri Emanetoglu, Leonard Kass, Rosemary L. Smith, Kristy L. Townsend
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-01-01
Series:Frontiers in Bioengineering and Biotechnology
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Online Access:https://www.frontiersin.org/articles/10.3389/fbioe.2024.1511383/full
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author Magdalena Blaszkiewicz
Magdalena Blaszkiewicz
Lydia Caron
Brooke Villinski
Joshua Passarelli
Julia M. Towne
Naeemah M. Story
Erin Merchant
Furrukh S. Khan
Nuri Emanetoglu
Leonard Kass
Rosemary L. Smith
Kristy L. Townsend
Kristy L. Townsend
author_facet Magdalena Blaszkiewicz
Magdalena Blaszkiewicz
Lydia Caron
Brooke Villinski
Joshua Passarelli
Julia M. Towne
Naeemah M. Story
Erin Merchant
Furrukh S. Khan
Nuri Emanetoglu
Leonard Kass
Rosemary L. Smith
Kristy L. Townsend
Kristy L. Townsend
author_sort Magdalena Blaszkiewicz
collection DOAJ
description BackgroundDiabetic peripheral neuropathy (DPN) is a common complication of diabetes. Proactive treatment options remain limited, which is exacerbated by a lack of sensitive and convenient diagnostics, especially early in disease progression or specifically to assess small fiber neuropathy (SFN), the loss of distal small diameter axons that innervate tissues and organs.MethodsWe designed, fabricated, tested, and validated a first-of-its-kind medical diagnostic device for the functional assessment of transdermal small fiber nerve activity. This device, the Detecting Early Neuropathy (DEN), is an electrically conductive needle array designed to record nerve electrical activity in the skin and subdermal tissues, as a feature of a broader theragnostic platform.ResultsDEN recordings were validated across a time course of diet-induced PN in mice, using statistical and computational analyses and compared to other SFN measures. Based on these preclinical mouse data, the device design was adapted to obtain recordings in human with a flexible printed circuit board to mold to the leg or other skin regions. The DEN successfully recorded various types of neural activity in mouse and human, with or without stimulation, including validated action potentials and electromyography signals.ConclusionNew functional diagnostic tools like DEN offer a promising outlook for patients needing an earlier or more sensitive diagnosis of DPN/SFN, to allow for earlier and more effective treatment options, especially as more become available in the clinic in future years.
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spelling doaj-art-5f7afb4f692c4a038b38b133c62ee68d2025-01-10T06:10:48ZengFrontiers Media S.A.Frontiers in Bioengineering and Biotechnology2296-41852025-01-011210.3389/fbioe.2024.15113831511383Transdermal electrophysiological recordings of diet-induced small fiber peripheral neuropathy using a needle electrode array in mice and manMagdalena Blaszkiewicz0Magdalena Blaszkiewicz1Lydia Caron2Brooke Villinski3Joshua Passarelli4Julia M. Towne5Naeemah M. Story6Erin Merchant7Furrukh S. Khan8Nuri Emanetoglu9Leonard Kass10Rosemary L. Smith11Kristy L. Townsend12Kristy L. Townsend13Department of Neurological Surgery, The Ohio State University, Columbus, OH, United StatesSchool of Biology and Ecology, University of Maine, Orono, ME, United StatesSchool of Biology and Ecology, University of Maine, Orono, ME, United StatesCollege of Engineering, University of Maine, Orono, ME, United StatesSchool of Biology and Ecology, University of Maine, Orono, ME, United StatesCollege of Engineering, University of Maine, Orono, ME, United StatesDepartment of Neurological Surgery, The Ohio State University, Columbus, OH, United StatesCollege of Engineering, University of Maine, Orono, ME, United StatesDepartment of Electrical and Computer Engineering, The Ohio State University, Columbus, OH, United StatesCollege of Engineering, University of Maine, Orono, ME, United StatesSchool of Biology and Ecology, University of Maine, Orono, ME, United StatesCollege of Engineering, University of Maine, Orono, ME, United StatesDepartment of Neurological Surgery, The Ohio State University, Columbus, OH, United StatesSchool of Biology and Ecology, University of Maine, Orono, ME, United StatesBackgroundDiabetic peripheral neuropathy (DPN) is a common complication of diabetes. Proactive treatment options remain limited, which is exacerbated by a lack of sensitive and convenient diagnostics, especially early in disease progression or specifically to assess small fiber neuropathy (SFN), the loss of distal small diameter axons that innervate tissues and organs.MethodsWe designed, fabricated, tested, and validated a first-of-its-kind medical diagnostic device for the functional assessment of transdermal small fiber nerve activity. This device, the Detecting Early Neuropathy (DEN), is an electrically conductive needle array designed to record nerve electrical activity in the skin and subdermal tissues, as a feature of a broader theragnostic platform.ResultsDEN recordings were validated across a time course of diet-induced PN in mice, using statistical and computational analyses and compared to other SFN measures. Based on these preclinical mouse data, the device design was adapted to obtain recordings in human with a flexible printed circuit board to mold to the leg or other skin regions. The DEN successfully recorded various types of neural activity in mouse and human, with or without stimulation, including validated action potentials and electromyography signals.ConclusionNew functional diagnostic tools like DEN offer a promising outlook for patients needing an earlier or more sensitive diagnosis of DPN/SFN, to allow for earlier and more effective treatment options, especially as more become available in the clinic in future years.https://www.frontiersin.org/articles/10.3389/fbioe.2024.1511383/fullobesitymedical devicemicroneedle electrodesperipheral nervesdiabetic peripheral neuropathysmall fiber neuropathy
spellingShingle Magdalena Blaszkiewicz
Magdalena Blaszkiewicz
Lydia Caron
Brooke Villinski
Joshua Passarelli
Julia M. Towne
Naeemah M. Story
Erin Merchant
Furrukh S. Khan
Nuri Emanetoglu
Leonard Kass
Rosemary L. Smith
Kristy L. Townsend
Kristy L. Townsend
Transdermal electrophysiological recordings of diet-induced small fiber peripheral neuropathy using a needle electrode array in mice and man
Frontiers in Bioengineering and Biotechnology
obesity
medical device
microneedle electrodes
peripheral nerves
diabetic peripheral neuropathy
small fiber neuropathy
title Transdermal electrophysiological recordings of diet-induced small fiber peripheral neuropathy using a needle electrode array in mice and man
title_full Transdermal electrophysiological recordings of diet-induced small fiber peripheral neuropathy using a needle electrode array in mice and man
title_fullStr Transdermal electrophysiological recordings of diet-induced small fiber peripheral neuropathy using a needle electrode array in mice and man
title_full_unstemmed Transdermal electrophysiological recordings of diet-induced small fiber peripheral neuropathy using a needle electrode array in mice and man
title_short Transdermal electrophysiological recordings of diet-induced small fiber peripheral neuropathy using a needle electrode array in mice and man
title_sort transdermal electrophysiological recordings of diet induced small fiber peripheral neuropathy using a needle electrode array in mice and man
topic obesity
medical device
microneedle electrodes
peripheral nerves
diabetic peripheral neuropathy
small fiber neuropathy
url https://www.frontiersin.org/articles/10.3389/fbioe.2024.1511383/full
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