1
|
Zeng Z, Bai Y, Hao W, Zhang T, Yang J, Wu F, Li X. Elevated TRPV2 expression in the facial nerve of rats by cold stimulation: Implications for Bell's palsy. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2024:101895. [PMID: 38685355 DOI: 10.1016/j.jormas.2024.101895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 04/27/2024] [Indexed: 05/02/2024]
Abstract
OBJECTIVE Bell's palsy, also referred to as clinical manifestations of unilateral facial nerve palsy, encompasses downward angling of the corners of the mouth, the absence of forehead creases, and unilateral incomplete eyelid closure. The incidence of Bell's palsy has increased progressively in recent years, but the underlying mechanism of its occurrence remains unknown; therefore, it is essential to investigate both the cause and treatment of Bell's palsy. Member 2 of the Subfamily V Transient Receptor Potential Cation Channel is a mechanically and thermally sensitive ion channel that plays a crucial role in neural growth and development. Using a novel modeling technique, we endeavored to develop an animal model of Bell's palsy and determine whether TRPV2 expression is altered throughout the course of a facial nerve injury. MATERIALS AND METHODS The rats were categorized into 3 groups, and their facial nerve function was assessed using RT-qPCR, WB, and pathologic testing, respectively, after undergoing unilateral cold air stimulation for 1, 3, and 7 days. TRPV2 expression was identified using these techniques. RESULTS In response to cold stimulation, rats exhibited facial nerve paralysis symptoms, demyelinating lesions in the facial nerve, and increased TRPV2 expression. CONCLUSIONS Extended cold stimulation of the facial nerve in rats may lead to an imbalance in facial nerve homeostasis and increased TRPV2 expression. These findings will contribute to the understanding of the potential mechanism by which cold stimulation affects the facial nerve. Moreover, this finding implies that TRPV2 could possibly function as an additional diagnostic marker or therapeutic target in the context of Bell's palsy.
Collapse
Affiliation(s)
- Ziqi Zeng
- Shanxi Medical University School and Hospital of Stomatology, Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi, 030001, PR China
| | - Yulan Bai
- Shanxi Medical University School and Hospital of Stomatology, Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi, 030001, PR China
| | - Weijiang Hao
- Huanzhong Dental Clinic, Taiyuan, Shanxi, 030001, PR China
| | - Tiefeng Zhang
- Chengxi Branch of Hangzhou Stomatology Hospital, Hangzhou, 310000, PR China
| | - Jing Yang
- Institute for Oral Science, Matsumoto Dental University, Shiojiri 399-0781, Japan
| | - Feng Wu
- Shanxi Medical University School and Hospital of Stomatology, Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi, 030001, PR China.
| | - Xianqi Li
- Shanxi Medical University School and Hospital of Stomatology, Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi, 030001, PR China; Institute for Oral Science, Matsumoto Dental University, Shiojiri 399-0781, Japan; Department of Oral and Maxillofacial Surgery, School of Dentistry, Matsumoto Dental University, Shiojiri 399-0781, Japan.
| |
Collapse
|
2
|
Franz L, Marioni G, Mazzoni A, de Filippis C, Zanoletti E. Contemporary Perspectives in Pathophysiology of Facial Nerve Damage in Oto-Neurological and Skull Base Surgical Procedures: A Narrative Review. J Clin Med 2023; 12:6788. [PMID: 37959253 PMCID: PMC10650057 DOI: 10.3390/jcm12216788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/19/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023] Open
Abstract
During the last decades, neuro-otological surgery has progressively reduced functional morbidity, including facial nerve damage. However, the occurrence of this sequela may significantly impact on patients' quality of life. The aim of this narrative review is to provide an update on the patho-physiological and clinical issues related to facial nerve damage in oto-neurological and skull base surgery, in the light of a comprehensive therapeutic and rehabilitative approach to iatrogenic disfunctions. The narrative review is based on a search in the PubMed, Scopus, and Web of Science databases. In this surgical setting, the onset of intraoperative facial nerve damage is related to various aspects, mainly concerning the anatomical relationship between tumor and nerve, the trajectory of the surgical corridor, and the boundaries of the resection margins. Mechanisms related to stretching, compression, devascularization, and heating may play a role in determining intraoperative facial nerve damage and provide the patho-physiological basis for possible nerve regeneration disorders. Most of the studies included in this review, dealing with the pathophysiology of surgical facial nerve injury, were preclinical. Future research should focus on the association between intraoperative trauma mechanisms and their clinical correlates in surgical practice. Further investigations should also be conducted to collect and record intraoperative data on nerve damage mechanisms, as well as the reports from neuro-monitoring systems.
Collapse
Affiliation(s)
- Leonardo Franz
- Phoniatric and Audiology Unit, Department of Neuroscience, University of Padova, 31100 Treviso, Italy; (G.M.); (C.d.F.)
- Skull-Base Unit, Otolaryngology Section, Department of Neuroscience, University of Padova, 35122 Padova, Italy;
| | - Gino Marioni
- Phoniatric and Audiology Unit, Department of Neuroscience, University of Padova, 31100 Treviso, Italy; (G.M.); (C.d.F.)
| | - Antonio Mazzoni
- Skull-Base Unit, Otolaryngology Section, Department of Neuroscience, University of Padova, 35122 Padova, Italy;
| | - Cosimo de Filippis
- Phoniatric and Audiology Unit, Department of Neuroscience, University of Padova, 31100 Treviso, Italy; (G.M.); (C.d.F.)
| | - Elisabetta Zanoletti
- Skull-Base Unit, Otolaryngology Section, Department of Neuroscience, University of Padova, 35122 Padova, Italy;
| |
Collapse
|
3
|
Lan D, Deng W, He K, Li Q, Peng X, Lao J, Li Z. Acupuncture treatment of a pregnant patient with Bell's palsy in the third trimester: Case report. Front Neurol 2023; 13:1088138. [PMID: 36686504 PMCID: PMC9845618 DOI: 10.3389/fneur.2022.1088138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 12/05/2022] [Indexed: 01/06/2023] Open
Abstract
At present, the optimal treatment for Bell's palsy remains controversial, and the combination of corticosteroids and antiviral medication is usually recommended in the early stage. However, treatment is often delayed because the effects of these drugs on pregnant women and fetuses are still unclear. As a safe and effective complementary alternative therapy, acupuncture can alleviate Bell's palsy symptoms and improve the quality of life of the patient. Herein, we report the clinical presentation of a 27-year-old woman with Bell's palsy who was 26 weeks pregnant at the time of diagnosis. After five courses of treatment, the patient made a complete recovery.
Collapse
Affiliation(s)
- Danchun Lan
- Department of Acupuncture and Moxibustion, Foshan Hospital of Traditional Chinese Medicine, Foshan, China
| | - Wenfei Deng
- The Eighth Clinical School of Medicine, Guangzhou University of Chinese Medicine, Foshan, China
| | - Kunze He
- Acupuncture and Rehabilitation Clinical School of Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qian Li
- The Eighth Clinical School of Medicine, Guangzhou University of Chinese Medicine, Foshan, China
| | - Xin Peng
- The Eighth Clinical School of Medicine, Guangzhou University of Chinese Medicine, Foshan, China
| | - Jinxiong Lao
- Department of Acupuncture and Moxibustion, Foshan Hospital of Traditional Chinese Medicine, Foshan, China,The Eighth Clinical School of Medicine, Guangzhou University of Chinese Medicine, Foshan, China,*Correspondence: Jinxiong Lao ✉
| | - Ziyong Li
- Department of Acupuncture and Moxibustion, Foshan Hospital of Traditional Chinese Medicine, Foshan, China,The Eighth Clinical School of Medicine, Guangzhou University of Chinese Medicine, Foshan, China,Ziyong Li ✉
| |
Collapse
|
4
|
Na G, Kim KW, Jung KW, Yun J, Cheong TY, Lee JM. Delayed Recovery in Idiopathic Sudden Sensorineural Hearing Loss. J Clin Med 2022; 11:jcm11102792. [PMID: 35628918 PMCID: PMC9143329 DOI: 10.3390/jcm11102792] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 05/03/2022] [Accepted: 05/13/2022] [Indexed: 12/04/2022] Open
Abstract
Sudden hearing loss is an easily encountered disease in clinics, but its prognosis has not been completely elucidated. In the present study, we investigated the long-term prognosis of sudden hearing loss with 130 patients who were diagnosed based on strict criteria and provided uniform treatment. The patients with incomplete recovery were reevaluated after 2 months without receiving additional treatment. Hearing levels at different time points were compared. Moreover, the associated factors affecting the degree of hearing improvement over time were evaluated using stepwise multiple linear regression. After treatment, 73 out of the 130 (56.1%) patients attained incomplete recovery and were reevaluated after 2 months. Seventeen out of the seventy-three (23.3%) patients showed a grade promotion, fifty-four (74%) were constant, and two (2.7%) were aggravated. The mean interaural hearing differences (IHDs) showed significant improvement. Old age, poor initial IHD, and poor recovery grade were significantly associated with a profitable delayed hearing gain. Poorer hearing level at the time of onset might be a sign for slower recovery rather than a poorer prognostic factor. The treatment outcome of idiopathic sudden sensorineural hearing loss (ISSNHL) should be evaluated at least 2 months after treatment completion, and counseling is required due to the need for long-term follow-up in patients with ISSNHL.
Collapse
|
5
|
Er-Rouassi H, Benichou L, Lyoussi B, Vidal C. Efficacy of LED Photobiomodulation for Functional and Axonal Regeneration After Facial Nerve Section-Suture. Front Neurol 2022; 13:827218. [PMID: 35280271 PMCID: PMC8905314 DOI: 10.3389/fneur.2022.827218] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 01/14/2022] [Indexed: 11/13/2022] Open
Abstract
Facial nerve damage can lead to partial or total facial nerve palsy. Photobiomodulation has been reported to improve and accelerate functional recovery following peripheral nerve lesion, depending on the type of lesion and the light exposure parameters used. The aim of this study was to investigate the effects of infrared exposure on functional and axonal regeneration after section-suture of the distal branches of the facial nerve: the buccal and marginal mandibular branches and the distal pes. The animals underwent surgery and were irradiated with infrared light at 850 nm twice daily from day 1 to day 16. The recovery of facial function was then studied at both the behavioral and morphological levels. Behavioral analyses were performed by videoscoring with a high-speed camera and using various devices to assess the recovery of whisker movement on the lesioned side from day 1 to day 30. We also assessed nasal deviation toward the intact side and the ability to close the ipsilateral eyelid completely from day 1 to day 38 and from day 1 to day 50, respectively. For morphological analyses, we assessed the re-establishment of facial motoneuron labeling with Fluorogold®, an immunofluorescent retrograde marker of axonal transport injected into the vibrissae, on D10, D14 and D30. We found that whisker movements recovery was significantly faster in treated than in control mice. A complete disappearance of nasal deviation was observed at 2 weeks in infrared-treated lesioned mice and at 5 weeks in controls. Complete eyelid closure was observed 3 weeks after surgery in treated animals and 6 weeks after surgery in controls. Finally, normal fluorogold labeling of the facial nuclei complex was restored 30 days after surgery in the treated animals, but no such restoration was ever observed in control animals. In conclusion, our data show that IR treatment at a distal site has a significant positive effect on facial nerve recovery. These findings pave the way for the clinical use of infrared photobiomodulation in patients with nerve lesions.
Collapse
Affiliation(s)
- Hafsa Er-Rouassi
- Centre Borelli, CNRS UMR-9010, Université de Paris, Paris, France.,Laboratory of Natural Substances, Pharmacology, Environment, Modeling, Health, and Quality of Life (SNAMOPEQ), Department of Biology, Faculty of Sciences Dhar Mehraz, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Luc Benichou
- Paris-Est Créteil Université (UPEC) Faculté de Médecine, Creteil, France
| | - Badiaa Lyoussi
- Laboratory of Natural Substances, Pharmacology, Environment, Modeling, Health, and Quality of Life (SNAMOPEQ), Department of Biology, Faculty of Sciences Dhar Mehraz, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Catherine Vidal
- Centre Borelli, CNRS UMR-9010, Université de Paris, Paris, France
| |
Collapse
|
6
|
Jakovcevski I, von Düring M, Lutz D, Vulović M, Hamad M, Reiss G, Förster E, Schachner M. Mice lacking perforin have improved regeneration of the injured femoral nerve. Neural Regen Res 2022; 17:1802-1808. [PMID: 35017441 PMCID: PMC8820721 DOI: 10.4103/1673-5374.332152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The role that the immune system plays after injury of the peripheral nervous system is still not completely understood. Perforin, a natural killer cell- and T-lymphocyte-derived enzyme that mediates cytotoxicity, plays important roles in autoimmune diseases, infections and central nervous system trauma, such as spinal cord injury. To dissect the roles of this single component of the immune response to injury, we tested regeneration after femoral nerve injury in perforin-deficient (Pfp–/–) and wild-type control mice. Single frame motion analysis showed better motor recovery in Pfp–/– mice compared with control mice at 4 and 8 weeks after injury. Retrograde tracing of the motoneuron axons regrown into the motor nerve branch demonstrated more correctly projecting motoneurons in the spinal cord of Pfp–/– mice compared with wild-types. Myelination of regrown axons measured by g-ratio was more extensive in Pfp–/– than in wild-type mice in the motor branch of the femoral nerve. Pfp–/– mice displayed more cholinergic synaptic terminals around cell bodies of spinal motoneurons after injury than the injured wild-types. We histologically analyzed lymphocyte infiltration 10 days after surgery and found that in Pfp–/– mice the number of lymphocytes in the regenerating nerves was lower than in wild-types, suggesting a closed blood-nerve barrier in Pfp–/– mice. We conclude that perforin restricts motor recovery after femoral nerve injury owing to decreased survival of motoneurons and reduced myelination.
Collapse
Affiliation(s)
- Igor Jakovcevski
- Institut für Anatomie und Klinische Morphologie, Universität Witten/Herdecke, Witten, Germany
| | - Monika von Düring
- Department of Neuroanatomy and Molecular Brain Research, Ruhr University Bochum, Bochum, Germany
| | - David Lutz
- Department of Neuroanatomy and Molecular Brain Research, Ruhr University Bochum, Bochum, Germany
| | - Maja Vulović
- Department of Anatomy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Mohammad Hamad
- Institut für Anatomie und Klinische Morphologie, Universität Witten/Herdecke, Witten, Germany
| | - Gebhard Reiss
- Institut für Anatomie und Klinische Morphologie, Universität Witten/Herdecke, Witten, Germany
| | - Eckart Förster
- Department of Neuroanatomy and Molecular Brain Research, Ruhr University Bochum, Bochum, Germany
| | - Melitta Schachner
- Keck Center for Collaborative Neuroscience and Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ, USA
| |
Collapse
|
7
|
Hostettler IC, Jayashankar N, Bikis C, Wanderer S, Nevzati E, Karuppiah R, Waran V, Kalbermatten D, Mariani L, Marbacher S, Guzman R, Madduri S, Roethlisberger M. Clinical Studies and Pre-clinical Animal Models on Facial Nerve Preservation, Reconstruction, and Regeneration Following Cerebellopontine Angle Tumor Surgery-A Systematic Review and Future Perspectives. Front Bioeng Biotechnol 2021; 9:659413. [PMID: 34239858 PMCID: PMC8259738 DOI: 10.3389/fbioe.2021.659413] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 04/28/2021] [Indexed: 11/13/2022] Open
Abstract
Background and purpose: Tumorous lesions developing in the cerebellopontine angle (CPA) get into close contact with the 1st (cisternal) and 2nd (meatal) intra-arachnoidal portion of the facial nerve (FN). When surgical damage occurs, commonly known reconstruction strategies are often associated with poor functional recovery. This article aims to provide a systematic overview for translational research by establishing the current evidence on available clinical studies and experimental models reporting on intracranial FN injury. Methods: A systematic literature search of several databases (PubMed, EMBASE, Medline) was performed prior to July 2020. Suitable articles were selected based on predefined eligibility criteria following the Preferred Reporting Items for Systematic Reviews and Meta Analyses (PRISMA) guidelines. Included clinical studies were reviewed and categorized according to the pathology and surgical resection strategy, and experimental studies according to the animal. For anatomical study purposes, perfusion-fixed adult New Zealand white rabbits were used for radiological high-resolution imaging and anatomical dissection of the CPA and periotic skull base. Results: One hundred forty four out of 166 included publications were clinical studies reporting on FN outcomes after CPA-tumor surgery in 19,136 patients. During CPA-tumor surgery, the specific vulnerability of the intracranial FN to stretching and compression more likely leads to neurapraxia or axonotmesis than neurotmesis. Severe FN palsy was reported in 7 to 15 % after vestibular schwannoma surgery, and 6% following the resection of CPA-meningioma. Twenty-two papers reported on experimental studies, out of which only 6 specifically used intracranial FN injury in a rodent (n = 4) or non-rodent model (n = 2). Rats and rabbits offer a feasible model for manipulation of the FN in the CPA, the latter was further confirmed in our study covering the radiological and anatomical analysis of perfusion fixed periotic bones. Conclusion: The particular anatomical and physiological features of the intracranial FN warrant a distinguishment of experimental models for intracranial FN injuries. New Zealand White rabbits might be a very cost-effective and valuable option to test new experimental approaches for intracranial FN regeneration. Flexible and bioactive biomaterials, commonly used in skull base surgery, endowed with trophic and topographical functions, should address the specific needs of intracranial FN injuries.
Collapse
Affiliation(s)
- Isabel C Hostettler
- Department of Neurosurgery, Klinikum Rechts der Isar, Technical University Munich, Munich, Germany
| | - Narayan Jayashankar
- Department of Oto-Rhino-Laryngology, Nanavati Super Speciality Hospital, Mumbai, India
| | - Christos Bikis
- Department of Biomedical Engineering, Biomaterials Science Center, University of Basel, Allschwil, Switzerland.,Integrierte Psychiatrie Winterthur - Zürcher Unterland, Winterthur, Switzerland
| | - Stefan Wanderer
- Department of Neurosurgery, Kantonsspital Aarau, Aarau, Switzerland
| | - Edin Nevzati
- Department of Neurosurgery, Kantonsspital Luzern, Lucerne, Switzerland
| | - Ravindran Karuppiah
- Department of Neurosurgery, University Malaya Specialist Centre, University of Malaya, Kuala Lumpur, Malaysia
| | - Vicknes Waran
- Department of Neurosurgery, University Malaya Specialist Centre, University of Malaya, Kuala Lumpur, Malaysia
| | - Daniel Kalbermatten
- Department of Plastic Surgery, University Hospital Geneva, Geneva, Switzerland.,Department of Surgery, Biomaterials and Neuro Tissue Bioengineering, University of Geneva, Geneva, Switzerland
| | - Luigi Mariani
- Department of Neurosurgery, University Hospital of Basel, University of Basel, Basel, Switzerland
| | - Serge Marbacher
- Department of Neurosurgery, Kantonsspital Aarau, Aarau, Switzerland
| | - Raphael Guzman
- Department of Neurosurgery, University Hospital of Basel, University of Basel, Basel, Switzerland.,Department of Biomedicine, Brain Ischemia and Regeneration, University of Basel, Basel, Switzerland.,Department of Biomedical Engineering, Center for Bioengineering and Regenerative Medicine, University of Basel, Basel, Switzerland
| | - Srinivas Madduri
- Department of Surgery, Biomaterials and Neuro Tissue Bioengineering, University of Geneva, Geneva, Switzerland.,Department of Biomedicine, Brain Ischemia and Regeneration, University of Basel, Basel, Switzerland.,Department of Biomedical Engineering, Center for Bioengineering and Regenerative Medicine, University of Basel, Basel, Switzerland
| | - Michel Roethlisberger
- Department of Neurosurgery, University Malaya Specialist Centre, University of Malaya, Kuala Lumpur, Malaysia.,Department of Neurosurgery, University Hospital of Basel, University of Basel, Basel, Switzerland.,Department of Biomedical Engineering, Center for Bioengineering and Regenerative Medicine, University of Basel, Basel, Switzerland
| |
Collapse
|
8
|
Campos RM, Barbosa-Silva MC, Ribeiro-Resende VT. Comparison of effect of crush or transection peripheral nerve lesion on lumbar spinal cord synaptic plasticity and microglial dynamics. IBRO Neurosci Rep 2021; 10:225-235. [PMID: 34179871 PMCID: PMC8211924 DOI: 10.1016/j.ibneur.2021.05.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 05/10/2021] [Accepted: 05/12/2021] [Indexed: 11/22/2022] Open
Abstract
In an injury to the peripheral nervous system, the spinal cord and brain structure reorganize connections to optimize the function of the remaining parts. Many cell events are triggered in the spinal cord to support changes in the synaptic connections around motoneurons, where old connections are removed, and new ones created. Microglial cells are primitive macrophages that invade the central nervous system in early stages of neurodevelopment and have several functions, such as eliminating synapses. We investigated the synaptic plasticity after different types of peripheral (sciatic) nerve injury (crush or total transection), as well as the behavior of microglial cells for 2 weeks after a peripheral lesion. As expected, sciatic-nerve injury reduced motor performance in mice, but crushed animals regained partial motor control. Because of sciatic-nerve injury, pre-synaptic inputs decreased around the motoneurons in the ventro-lateral horn, while microglial cells increased around these cells. Microglial cells also exhibited altered morphology in both types of peripheral lesion, indicating a similar underlying mechanism of plasticity. To investigate the involvement of microglia in this scenario, microglial activation was modulated by daily administration of minocycline. The minocycline treatment directly affected the microglial response and impacted the synapse rearrangement in the spinal cord. Together, these results demonstrate that microglia cells are involved in synaptic plasticity in the lumbar spinal cord in both nerve-injury scenarios. SUMMARY OF STATEMENT Here, we demonstrated that acute plasticity in the lumbar spinal cord (LSC) did not differ between crush and transection of peripheral nerve, and that microglial reactivity in the LSC was important after both injury types.
Collapse
Affiliation(s)
- Raquel M.P. Campos
- Instituto de Biofísica Carlos Chagas Filho, Laboratório de Neuroquímica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil
| | - Maria Carolina Barbosa-Silva
- Instituto de Biofísica Carlos Chagas Filho, Laboratório de Neuroquímica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil
| | - Victor T. Ribeiro-Resende
- Instituto de Biofísica Carlos Chagas Filho, Laboratório de Neuroquímica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil
- Núcleo Multidisciplinar de Pesquisa em Biologia (Numpex-Bio), Campus de Duque de Caxias Geraldo Guerra Cidade, Universidade Federal do Rio de Janeiro, Duque de Caxias, RJ 25255-030, Brazil
| |
Collapse
|
9
|
Costa AL, Papadopulos N, Porzionato A, Natsis K, Bassetto F, Tiengo C, Giunta R, Soldado F, Bertelli JA, Baeza AR, Battiston B, Titolo P, Tos P, Radtke C, Aszmann O, Moschella F, Cordova A, Toia F, Perrotta RE, Ronchi G, Geuna S, Colonna MR. Studying nerve transfers: Searching for a consensus in nerve axons count. J Plast Reconstr Aesthet Surg 2021; 74:2731-2736. [PMID: 33962889 DOI: 10.1016/j.bjps.2021.03.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 03/13/2021] [Indexed: 11/26/2022]
Abstract
Axonal count is the base for efficient nerve transfer; despite its capital importance, few studies have been published on human material, most research approaches being performed on experimental animal models of nerve injury. Thus, standard analysis methods are still lacking. Quantitative data obtained have to be reproducible and comparable with published data by other research groups. To share results with the scientific community, the standardization of quantitative analysis is a fundamental step. For this purpose, the experiences of the Italian, Austrian, German, Greek, and Iberian-Latin American groups have been compared with each other and with the existing literature to reach a consensus in the fiber count and draw up a protocol that can make future studies from different centers comparable. The search for a standardization of the methodology was aimed to reduce all the factors that are associated with an increase in the variability of the results. All the preferential methods to be used have been suggested. On the other hand, alternative methods and different methods have been identified to achieve the same goal, which in our experience are completely comparable; therefore, they can be used indifferently by the different centers according to their experience and availability.
Collapse
Affiliation(s)
- Alfio Luca Costa
- Department of Human Pathology of the Adult, the Child and the Adolescent, University of Messina, Via Consolare Valeria 1, 98125 Messina, Italy.
| | - Nikolaos Papadopulos
- Department of Plastic Surgery and Burns, Alexandroupoli University Hospital, Democritus University of Thace, Alexandroupoli, Greece
| | - Andrea Porzionato
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, Padova, Italy
| | - Konstantinos Natsis
- Department of Anatomy and Surgical Anatomy, (Chairperson: Professor Dr. K. NATSIS), Medical School, Aristotle University of Thessaloniki, Greece
| | - Franco Bassetto
- Clinic of Plastic Surgery, Padova University Hospital, Padova, Italy
| | - Cesare Tiengo
- Clinic of Plastic Surgery, Padova University Hospital, Padova, Italy
| | - Riccardo Giunta
- Division of Hand, Plastic and Aesthetic Surgery, Ludwig-Maximilians-University (LMU), Pettenkoferstraße. 8a, 80336 Munich, Germany
| | - Francisco Soldado
- Pediatric Upper Extremity Surgery and Microsurgery, Vithas San Jose Hospital, Vitoria and Hospital HM nens, Barcelona, Spain
| | - Jayme Augusto Bertelli
- Department of Orthopedic Surgery, Governador Celso Ramos Hospital, Florianópolis, Brazil
| | - Alfonso Rodrìguez Baeza
- Unit of Human Anatomy and Embryology, Department of Morphological Sciences, Faculty of Medicine, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Bellaterra, 08193 Barcelona, Spain
| | - Bruno Battiston
- Human Anatomy Unit, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Paolo Titolo
- Human Anatomy Unit, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Pierluigi Tos
- Azienda Ospedaliero-Universitaria Citta della Salute e della Scienza di Torino, Depatment of Traumatology, Turin, Italy
| | - Christine Radtke
- Hand Surgery and Reconstructive Microsurgery Unit, ASST G Pini-CTO, Milano, Italy
| | - Oscar Aszmann
- Hand Surgery and Reconstructive Microsurgery Unit, ASST G Pini-CTO, Milano, Italy
| | - Francesco Moschella
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Medical University of Vienna, Vienna, Austria
| | - Adriana Cordova
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Medical University of Vienna, Vienna, Austria
| | - Francesca Toia
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Medical University of Vienna, Vienna, Austria
| | - Rosario Emanuele Perrotta
- Section of Plastic and Reconstructive Surgery. Department of Surgical, Oncological and Oral Sciences. University of Palermo, Italy
| | - Guilia Ronchi
- Department of Plastic and Reconstructive Surgery, University of Catania, Catania 95100, Italy; Department of Clinical and Biological Sciences, University of Torino, Turin, Italy
| | - Stefano Geuna
- Department of Plastic and Reconstructive Surgery, University of Catania, Catania 95100, Italy
| | - Michele Rosario Colonna
- Department of Human Pathology of the Adult, the Child and the Adolescent, University of Messina, Via Consolare Valeria 1, 98125 Messina, Italy
| |
Collapse
|
10
|
Mayse ML, Norman HS, Peterson AD, Rouw KT, Johnson PJ. Targeted lung denervation in sheep: durability of denervation and long-term histologic effects on bronchial wall and peribronchial structures. Respir Res 2020; 21:117. [PMID: 32423414 PMCID: PMC7236341 DOI: 10.1186/s12931-020-01383-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 05/04/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Targeted lung denervation (TLD), a novel bronchoscopic procedure which attenuates pulmonary nerve input to the lung to reduce the clinical consequences of neural hyperactivity, may be an important emerging treatment for COPD. While procedural safety and impact on clinical outcomes have recently been reported, the mechanism of action has not been reported. We explored the long-term pathologic and histopathologic effects in a sheep model of ablation of bronchial branches of the vagus nerve using a novel dual-cooled radiofrequency ablation catheter. METHODS Nineteen sheep underwent circumferential ablation of both main bronchi with simultaneous balloon surface cooling using a targeted lung denervation system (Nuvaira, Inc., USA). Animals were followed over an extended time course (30, 365, and 640 days post procedure). At each time point, lung denervation (axonal staining in bronchial nerves), and effect on peribronchial structures near the treatment site (histopathology of bronchial epithelium, bronchial cartilage, smooth muscle, alveolar parenchyma, and esophagus) were quantified. One way analysis of variance (ANOVA) was performed to reveal differences between group means on normal data. Non-parametric analysis using Kruskal-Wallis Test was employed on non-normal data sets. RESULTS No adverse clinical effects were observed in any sheep. Nerve axon staining distal to the ablation site was decreased by 60% at 30 days after TLD and efferent axon staining was decreased by >70% at 365 and 640 days. All treated airways exhibited 100% epithelial integrity. Effect on peribronchial structures was strictly limited to lung tissue immediately adjacent to the ablation site. Tissue structure 1 cm proximal and distal to the treatment area remained normal, and the pulmonary veins, pulmonary arteries, and esophagus were unaffected. CONCLUSIONS The denervation of efferent axons induced by TLD therapy is durable and likely a contributing mechanism through which targeted lung denervation impacts clinical outcomes. Further, long term lung denervation did not alter the anatomy of the bronchioles or lung, as evaluated from both a gross and histologic perspective.
Collapse
Affiliation(s)
- Martin L Mayse
- Nuvaira, Inc, Suite 105 3750 Annapolis Lane North, Minneapolis, MN, 55447, USA
| | - Holly S Norman
- Nuvaira, Inc, Suite 105 3750 Annapolis Lane North, Minneapolis, MN, 55447, USA
| | | | - Kristina T Rouw
- Nuvaira, Inc, Suite 105 3750 Annapolis Lane North, Minneapolis, MN, 55447, USA
| | - Philip J Johnson
- Nuvaira, Inc, Suite 105 3750 Annapolis Lane North, Minneapolis, MN, 55447, USA.
| |
Collapse
|
11
|
Design-Based stereology and binary image histomorphometry in nerve assessment. J Neurosci Methods 2020; 336:108635. [PMID: 32070676 PMCID: PMC8045463 DOI: 10.1016/j.jneumeth.2020.108635] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 02/02/2020] [Accepted: 02/14/2020] [Indexed: 01/13/2023]
Abstract
BACKGROUND Stereology and histomorphometry are widely used by investigators to quantify nerve characteristics in normal and pathological states, including nerve injury and regeneration. While these methods of analysis are complementary, no study to date has systematically compared both approaches in peripheral nerve. This study investigated the reliability of design-based stereology versus semi-automated binary imaging histomorphometry for assessing healthy peripheral nerve characteristics. NEW METHOD Stereological analysis was compared to histomorphometry with binary image analysis on uninjured sciatic nerves to determine nerve fiber number, nerve area, neural density, and fiber distribution. RESULTS Sciatic nerves were harvested from 6 male Lewis rats, aged 8-12 weeks for comprehensive analysis of 6 nerve specimens. From each animal, sciatic nerve specimens were fixed, stained, and sectioned for analysis by light and electron microscopy. Both histomorphometry and stereological peripheral nerve analyses were performed on all specimens by two blinded and independent investigators who quantified nerve fiber count, fiber width, density, and related distribution parameters. COMPARISON WITH EXISTING METHODS Histomorphometry and stereological analysis provided similar outcomes in nerve fiber number and total nerve area. However, the light microscopy, but not electron microscopy, stereological analysis yielded higher nerve fiber area compared to histomorphometry or manual measurement. CONCLUSION Both methods measure similar fiber number and overall nerve fiber area; however, stereology with light microscopy quantified higher fiber area. Histomorphometry optimizes throughput and comprehensive analysis but requires user thresholding.
Collapse
|
12
|
Raslan A, Salem MAM, Al‐Hussaini A, Guntinas‐Lichius O, Irintchev A. Brief Electrical Stimulation Improves Functional Recovery After Femoral But Not After Facial Nerve Injury in Rats. Anat Rec (Hoboken) 2019; 302:1304-1313. [DOI: 10.1002/ar.24127] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 05/08/2018] [Accepted: 09/11/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Ashraf Raslan
- Department of OtorhinolaryngologyJena University Hospital Jena Germany
- Department of OtorhinolaryngologyAssiut University Assiut Egypt
| | | | | | | | - Andrey Irintchev
- Department of OtorhinolaryngologyJena University Hospital Jena Germany
| |
Collapse
|
13
|
Rink S, Bendella H, Akkin SM, Manthou M, Grosheva M, Angelov DN. Experimental Studies on Facial Nerve Regeneration. Anat Rec (Hoboken) 2019; 302:1287-1303. [DOI: 10.1002/ar.24123] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 10/09/2018] [Accepted: 11/02/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Svenja Rink
- Department of Prosthetic Dentistry, School of Dental and Oral MedicineUniversity of Cologne Cologne Germany
| | - Habib Bendella
- Department of NeurosurgeryUniversity of Witten/Herdecke, Cologne Merheim Medical Center (CMMC) Cologne Germany
| | - Salih Murat Akkin
- Department of Anatomy, School of MedicineSANKO University Gaziantep Turkey
| | - Marilena Manthou
- Department of Histology and EmbryologyAristotle University Thessaloniki Thessaloniki Greece
| | - Maria Grosheva
- Department of Oto‐Rhino‐LaryngologyUniversity of Cologne Cologne Germany
| | | |
Collapse
|
14
|
Botulinum Neurotoxin Application to the Severed Femoral Nerve Modulates Spinal Synaptic Responses to Axotomy and Enhances Motor Recovery in Rats. Neural Plast 2018; 2018:7975013. [PMID: 30254669 PMCID: PMC6145158 DOI: 10.1155/2018/7975013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 07/15/2018] [Accepted: 08/05/2018] [Indexed: 12/22/2022] Open
Abstract
Botulinum neurotoxin A (BoNT) and brain-derived neurotrophic factor (BDNF) are known for their ability to influence synaptic inputs to neurons. Here, we tested if these drugs can modulate the deafferentation of motoneurons following nerve section/suture and, as a consequence, modify the outcome of peripheral nerve regeneration. We applied drug solutions to the proximal stump of the freshly cut femoral nerve of adult rats to achieve drug uptake and transport to the neuronal perikarya. The most marked effect of this application was a significant reduction of the axotomy-induced loss of perisomatic cholinergic terminals by BoNT at one week and two months post injury. The attenuation of the synaptic deficit was associated with enhanced motor recovery of the rats 2–20 weeks after injury. Although BDNF also reduced cholinergic terminal loss at 1 week, it had no effect on this parameter at two months and no effect on functional recovery. These findings strengthen the idea that persistent partial deafferentation of axotomized motoneurons may have a significant negative impact on functional outcome after nerve injury. Intraneural application of drugs may be a promising way to modify deafferentation and, thus, elucidate relationships between synaptic plasticity and restoration of function.
Collapse
|
15
|
Rosso MPDO, Rosa Júnior GM, Buchaim DV, German IJS, Pomini KT, de Souza RG, Pereira M, Favaretto Júnior IA, Bueno CRDS, Gonçalves JBDO, Ferreira Júnior RS, Barraviera B, Andreo JC, Buchaim RL. Stimulation of morphofunctional repair of the facial nerve with photobiomodulation, using the end-to-side technique or a new heterologous fibrin sealant. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 175:20-28. [PMID: 28846931 DOI: 10.1016/j.jphotobiol.2017.08.023] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Revised: 08/13/2017] [Accepted: 08/17/2017] [Indexed: 12/01/2022]
Abstract
This research evaluated the influence of Photobiomodulation Therapy (PBMT) on lesions of the facial nerve repaired with the end-to-side technique or coaptation with a new heterologous fibrin sealant. Thirty-two Wistar rats were separated into 5 groups: Control group (CG), where the buccal branch of the facial nerve was collected; Experimental Suture Group (ESG) and Experimental Fibrin Group (EFG), in which the buccal branch was end-to-side sutured to the zygomatic branch on the right side of the face or coaptated with fibrin sealant on the left side; Experimental Suture Laser Group (ESLG) and Experimental Fibrin Laser Group (EFLG), in which the same procedures were performed as the ESG and EFG, associated with PBMT (wavelength of 830nm, energy density 6.2J/cm2, power output 30mW, beam area of 0.116cm2, power density 0.26W/cm2, total energy per session 2.16J, cumulative dose of 34.56J). The laser was applied for 24s/site at 3 points on the skin's surface, for a total application time of 72s, performed immediately after surgery and 3 times a week for 5weeks. A statistically significant difference was observed in the fiber nerve area between the EFG and EFLG (57.49±3.13 and 62.52±3.56μm2, respectively). For the area of the axon, fiber diameter, axon diameter, myelin sheath area and myelin sheath thickness no statistically significant differences were found (p<0.05). The functional recovery of whisker movement occurred faster in the ESLG and EFLG, which were associated with PBMT, with results closer to the CG. Therefore, PBMT accelerated morphological and functional nerve repair in both techniques.
Collapse
Affiliation(s)
| | | | | | - Iris Jasmin Santos German
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru, SP, Brazil
| | - Karina Torres Pomini
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru, SP, Brazil
| | - Rafael Gomes de Souza
- Human Morphophysiology (Anatomy), University of Marilia (UNIMAR), Marilia, SP, Brazil
| | - Mizael Pereira
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru, SP, Brazil
| | | | | | | | - Rui Seabra Ferreira Júnior
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (Univ. Estadual Paulista, UNESP), Botucatu, SP, Brazil
| | - Benedito Barraviera
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (Univ. Estadual Paulista, UNESP), Botucatu, SP, Brazil
| | - Jesus Carlos Andreo
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru, SP, Brazil
| | - Rogério Leone Buchaim
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru, SP, Brazil; Human Morphophysiology (Anatomy), University of Marilia (UNIMAR), Marilia, SP, Brazil
| |
Collapse
|
16
|
Chen P, Knox CJ, Yao L, Li C, Hadlock TA. The effects of venous ensheathment on facial nerve repair in the rat. Laryngoscope 2017; 127:1558-1564. [PMID: 28224625 DOI: 10.1002/lary.26501] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 12/25/2016] [Accepted: 12/28/2016] [Indexed: 11/06/2022]
Abstract
OBJECTIVE To investigate the protective effect of autologous venous ensheathment on sutured rat facial nerve and to test whether the ensheathment could improve the functional recovery of repaired nerve and accuracy of axonal growth. STUDY DESIGN In vivo study. METHODS Forty-six rats were examined, with six rats serving as normal controls and 40 receiving facial nerve transection and suture repair (SR) or transection and suture repair with an additional venous ensheathment (VE). The rats were then subjected to functional testing, histological assessment of nerve specimens, or retrograde tracing, respectively. RESULTS At the postoperative day (POD) 60, the venous ensheathment showed no adhesion at the surrounding tissues. No significant difference in neuroma formation was found between the two surgical manipulations (SR and VE groups) (P < 0.05). Retrogradely labeled motoneurons in facial nuclei were extremely disorganized after the facial nerve undertook surgical manipulation. In all manipulated groups, double retrogradely labeled neurons, indicative of aberrant axonal branching during regeneration, could be observed after peripheral manipulation across all time points. With the two facial surgical manipulations, the average count of double-labeled neurons at POD 60 was significantly less than at POD 21 (P < 0.05). CONCLUSION Autologous venous ensheathment could not help with the functional recovery of facial nerve or improve the accuracy of axonal regeneration. Further studies are warranted to elucidate the effects of venous ensheathment in other motor and sensory nerve models. LEVEL OF EVIDENCE NA. Laryngoscope, 127:1558-1564, 2017.
Collapse
Affiliation(s)
- Pei Chen
- Department of Otolaryngology, Massachusetts Eye and Ear Infirmary and Harvard Medical School, Boston, Massachusetts, U.S.A.,Department of Otolaryngology, Wuhan Integrated TCM and Western Medicine Hospital (Wuhan No.1 Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Christopher J Knox
- Department of Otolaryngology, Massachusetts Eye and Ear Infirmary and Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Linli Yao
- Department of Otolaryngology, Wuhan Integrated TCM and Western Medicine Hospital (Wuhan No.1 Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Chunli Li
- Department of Otolaryngology, Wuhan Integrated TCM and Western Medicine Hospital (Wuhan No.1 Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Tessa A Hadlock
- Department of Otolaryngology, Massachusetts Eye and Ear Infirmary and Harvard Medical School, Boston, Massachusetts, U.S.A
| |
Collapse
|
17
|
Chao X, Xu L, Shang H, Han Y, Cai J, Li J, Wang H, Fan Z. The injury of marginal mandibular branch unexpectedly promotes the repair of buccal branch of facial nerve in a rat model. Acta Otolaryngol 2016; 136:956-63. [PMID: 27093225 DOI: 10.3109/00016489.2016.1169318] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONCLUSIONS The results indicate that the injury of the marginal mandibular branch improved the recovery of the buccal branch in a rat model. OBJECTIVE The aim of this study was to investigate whether the injury or intactness of the marginal mandibular branch affects the regeneration of the facial nerve buccal branch in a rat model. METHODS This experiment was conducted on 30 adult rats, which were randomly and equally divided into two groups. The buccal branch of the facial nerve was transected and reconstructed, with the marginal mandibular branch damaged (group A) or intact (group B). The vibrissae movement of rats was assessed since the 4th week after operation. At the 8th and 12th week, compound muscle action potentials (CMAPs) and morphological changes of injured buccal branches were evaluated. RESULTS After the operation, vibrissae movement of rats was eliminated in group A, but it was similar to the health side in group B. CMAPs were recorded from regenerated buccal branches in group A since the 8th week, but no CMAPs could be recorded in group B at each time point. Additionally, the diameter of nerve fibers, the thickness of myelin sheath, and the density of regenerated fibers in group A were significantly larger than those in group B (p < 0.05).
Collapse
Affiliation(s)
- Xiuhua Chao
- a Department of Otolaryngology Head and Neck Surgery , Shandong Provincial Hospital Affiliated to Shandong University , Jinan , PR China
- b Shandong Institute of Otolaryngology, Shandong Provincial Key Laboratory of Otology , Jinan , PR China
| | - Lei Xu
- a Department of Otolaryngology Head and Neck Surgery , Shandong Provincial Hospital Affiliated to Shandong University , Jinan , PR China
| | - Haiqiong Shang
- a Department of Otolaryngology Head and Neck Surgery , Shandong Provincial Hospital Affiliated to Shandong University , Jinan , PR China
- b Shandong Institute of Otolaryngology, Shandong Provincial Key Laboratory of Otology , Jinan , PR China
| | - Yuechen Han
- a Department of Otolaryngology Head and Neck Surgery , Shandong Provincial Hospital Affiliated to Shandong University , Jinan , PR China
| | - Jing Cai
- a Department of Otolaryngology Head and Neck Surgery , Shandong Provincial Hospital Affiliated to Shandong University , Jinan , PR China
| | - Jianfeng Li
- a Department of Otolaryngology Head and Neck Surgery , Shandong Provincial Hospital Affiliated to Shandong University , Jinan , PR China
- b Shandong Institute of Otolaryngology, Shandong Provincial Key Laboratory of Otology , Jinan , PR China
| | - Haibo Wang
- a Department of Otolaryngology Head and Neck Surgery , Shandong Provincial Hospital Affiliated to Shandong University , Jinan , PR China
- b Shandong Institute of Otolaryngology, Shandong Provincial Key Laboratory of Otology , Jinan , PR China
| | - Zhaomin Fan
- a Department of Otolaryngology Head and Neck Surgery , Shandong Provincial Hospital Affiliated to Shandong University , Jinan , PR China
- b Shandong Institute of Otolaryngology, Shandong Provincial Key Laboratory of Otology , Jinan , PR China
| |
Collapse
|
18
|
Buchaim DV, Rodrigues ADC, Buchaim RL, Barraviera B, Junior RSF, Junior GMR, Bueno CRDS, Roque DD, Dias DV, Dare LR, Andreo JC. The new heterologous fibrin sealant in combination with low-level laser therapy (LLLT) in the repair of the buccal branch of the facial nerve. Lasers Med Sci 2016; 31:965-72. [PMID: 27112578 DOI: 10.1007/s10103-016-1939-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 04/11/2016] [Indexed: 01/09/2023]
Abstract
This study aimed to evaluate the effects of low-level laser therapy (LLLT) in the repair of the buccal branch of the facial nerve with two surgical techniques: end-to-end epineural suture and coaptation with heterologous fibrin sealant. Forty-two male Wistar rats were randomly divided into five groups: control group (CG) in which the buccal branch of the facial nerve was collected without injury; (2) experimental group with suture (EGS) and experimental group with fibrin (EGF): The buccal branch of the facial nerve was transected on both sides of the face. End-to-end suture was performed on the right side and fibrin sealant on the left side; (3) Experimental group with suture and laser (EGSL) and experimental group with fibrin and laser (EGFL). All animals underwent the same surgical procedures in the EGS and EGF groups, in combination with the application of LLLT (wavelength of 830 nm, 30 mW optical power output of potency, and energy density of 6 J/cm(2)). The animals of the five groups were euthanized at 5 weeks post-surgery and 10 weeks post-surgery. Axonal sprouting was observed in the distal stump of the facial nerve in all experimental groups. The observed morphology was similar to the fibers of the control group, with a predominance of myelinated fibers. In the final period of the experiment, the EGSL presented the closest results to the CG, in all variables measured, except in the axon area. Both surgical techniques analyzed were effective in the treatment of peripheral nerve injuries, where the use of fibrin sealant allowed the manipulation of the nerve stumps without trauma. LLLT exhibited satisfactory results on facial nerve regeneration, being therefore a useful technique to stimulate axonal regeneration process.
Collapse
Affiliation(s)
- Daniela Vieira Buchaim
- Human Morphophysiology (Anatomy), Faculty of Medicine, University of Marilia (UNIMAR), Marilia, SP, Brazil.
| | - Antonio de Castro Rodrigues
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Rogerio Leone Buchaim
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Benedito Barraviera
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (UNESP-Univ Estadual Paulista), Botucatu, São Paulo State, Brazil
| | - Rui Seabra Ferreira Junior
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (UNESP-Univ Estadual Paulista), Botucatu, São Paulo State, Brazil
| | | | | | - Domingos Donizeti Roque
- Human Morphophysiology (Anatomy), Faculty of Medicine, University of Marilia (UNIMAR), Marilia, SP, Brazil
| | | | | | - Jesus Carlos Andreo
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| |
Collapse
|
19
|
Synaptic plasticity in the facial nucleus in rats following infraorbital nerve manipulation after facial nerve injury. Eur Arch Otorhinolaryngol 2016; 273:3135-42. [DOI: 10.1007/s00405-016-3939-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 02/12/2016] [Indexed: 10/22/2022]
|
20
|
Placheta E, Wood MD, Lafontaine C, Frey M, Gordon T, Borschel GH. Macroscopic in vivo imaging of facial nerve regeneration in Thy1-GFP rats. JAMA FACIAL PLAST SU 2015; 17:8-15. [PMID: 25317544 DOI: 10.1001/jamafacial.2014.617] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
IMPORTANCE Facial nerve injury leads to severe functional and aesthetic deficits. The transgenic Thy1-GFP rat is a new model for facial nerve injury and reconstruction research that will help improve clinical outcomes through translational facial nerve injury research. OBJECTIVE To determine whether serial in vivo imaging of nerve regeneration in the transgenic rat model is possible, facial nerve regeneration was imaged under the main paradigms of facial nerve injury and reconstruction. DESIGN, SETTING, AND PARTICIPANTS Fifteen male Thy1-GFP rats, which express green fluorescent protein (GFP) in their neural structures, were divided into 3 groups in the laboratory: crush-injury, direct repair, and cross-face nerve grafting (30-mm graft length). The distal nerve stump or nerve graft was predegenerated for 2 weeks. The facial nerve of the transgenic rats was serially imaged at the time of operation and after 2, 4, and 8 weeks of regeneration. The imaging was performed under a GFP-MDS-96/BN excitation stand (BLS Ltd). INTERVENTION OR EXPOSURE Facial nerve injury. MAIN OUTCOME AND MEASURE Optical fluorescence of regenerating facial nerve axons. RESULTS Serial in vivo imaging of the regeneration of GFP-positive axons in the Thy1-GFP rat model is possible. All animals survived the short imaging procedures well, and nerve regeneration was followed over clinically relevant distances. The predegeneration of the distal nerve stump or the cross-face nerve graft was, however, necessary to image the regeneration front at early time points. Crush injury was not suitable to sufficiently predegenerate the nerve (and to allow for degradation of the GFP through Wallerian degeneration). After direct repair, axons regenerated over the coaptation site in between 2 and 4 weeks. The GFP-positive nerve fibers reached the distal end of the 30-mm-long cross-face nervegrafts after 4 to 8 weeks of regeneration. CONCLUSIONS AND RELEVANCE The time course of facial nerve regeneration was studied by serial in vivo imaging in the transgenic rat model. Nerve regeneration was followed over clinically relevant distances in a small number of experimental animals, as they were subsequently imaged at multiple time points. The Thy1-GFP rat model will help improve clinical outcomes of facial reanimation surgery through improving the knowledge of facial nerve regeneration after surgical procedures. LEVEL OF EVIDENCE NA.
Collapse
Affiliation(s)
- Eva Placheta
- Division of Plastic and Reconstructive Surgery, Medical University of Vienna, Vienna, Austria
| | - Matthew D Wood
- Division of Plastic and Reconstructive Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Christine Lafontaine
- Division of Plastic and Reconstructive Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Manfred Frey
- Division of Plastic and Reconstructive Surgery, Medical University of Vienna, Vienna, Austria
| | - Tessa Gordon
- Division of Plastic and Reconstructive Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Gregory H Borschel
- Division of Plastic and Reconstructive Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada3Department of Surgery, University of Toronto, Toronto, Ontario, Canada4Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada5I
| |
Collapse
|
21
|
Kruspe M, Thieme H, Guntinas-Lichius O, Irintchev A. Motoneuron regeneration accuracy and recovery of gait after femoral nerve injuries in rats. Neuroscience 2014; 280:73-87. [DOI: 10.1016/j.neuroscience.2014.08.051] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Revised: 08/28/2014] [Accepted: 08/28/2014] [Indexed: 11/27/2022]
|