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Kent RD. The Feel of Speech: Multisystem and Polymodal Somatosensation in Speech Production. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2024; 67:1424-1460. [PMID: 38593006 DOI: 10.1044/2024_jslhr-23-00575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
PURPOSE The oral structures such as the tongue and lips have remarkable somatosensory capacities, but understanding the roles of somatosensation in speech production requires a more comprehensive knowledge of somatosensation in the speech production system in its entirety, including the respiratory, laryngeal, and supralaryngeal subsystems. This review was conducted to summarize the system-wide somatosensory information available for speech production. METHOD The search was conducted with PubMed/Medline and Google Scholar for articles published until November 2023. Numerous search terms were used in conducting the review, which covered the topics of psychophysics, basic and clinical behavioral research, neuroanatomy, and neuroscience. RESULTS AND CONCLUSIONS The current understanding of speech somatosensation rests primarily on the two pillars of psychophysics and neuroscience. The confluence of polymodal afferent streams supports the development, maintenance, and refinement of speech production. Receptors are both canonical and noncanonical, with the latter occurring especially in the muscles innervated by the facial nerve. Somatosensory representation in the cortex is disproportionately large and provides for sensory interactions. Speech somatosensory function is robust over the lifespan, with possible declines in advanced aging. The understanding of somatosensation in speech disorders is largely disconnected from research and theory on speech production. A speech somatoscape is proposed as the generalized, system-wide sensation of speech production, with implications for speech development, speech motor control, and speech disorders.
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Khan MI, Easwaran M, Martinez JD, Kimura A, Erickson-DiRenzo E. Method for Collecting Single Epithelial Cells from the Mouse Larynx. Laryngoscope 2024; 134:786-794. [PMID: 37602769 PMCID: PMC10841475 DOI: 10.1002/lary.30970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 08/01/2023] [Accepted: 08/03/2023] [Indexed: 08/22/2023]
Abstract
OBJECTIVE The larynx is lined by specialized epithelial cell populations. Studying molecular changes occurring in individual epithelial cell types requires a reliable method for removing these cells from the larynx. Our objective was to develop a method to harvest individual epithelial cells from the mouse larynx while minimizing contamination from non-laryngeal sites and non-epithelial laryngeal cells. METHODS Mice were euthanized, and the larynx was carefully exposed and separated from non-laryngeal sites. A small dental brush was inserted into the laryngeal inlet and rotated to obtain epithelial cells. Cells were transferred to collection media, counted, and cytospin preparations stained for laryngeal epithelial (i.e., Pan-Keratin, EpCAM, NGFR, p63, K5, β-tubulin, MUC5AC) and non-epithelial (i.e., vimentin) cell markers. Histopathology was completed on brushed laryngeal tissue sections to evaluate the depth of cell collection. Preliminary Single-cell RNA sequencing (scRNA-seq) was performed to confirm this method can capture diverse laryngeal cell types. RESULTS We collected 6000-8000 cells from a single larynx and 35000-40000 cells from combining brushings from three tissues. Histopathology demonstrated brushing removed the epithelial layer of the larynx and some underlying tissue. Immunofluorescence staining demonstrated the phenotype of harvested cells was primarily epithelial. Preliminary scRNA-seq was successfully conducted and displayed nine unique cell clusters. CONCLUSION We developed a reliable method of harvesting individual epithelial cells from the mouse larynx. This method will be useful for collection of laryngeal cells for a variety of downstream cellular and molecular assays, including scRNA-seq, protein analyses, and cell-culture-based experiments, following laryngeal injury. LEVEL OF EVIDENCE NA Laryngoscope, 134:786-794, 2024.
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Affiliation(s)
- Mohammed Imran Khan
- Department of Otolaryngology - Head & Neck Surgery, School of Medicine, Stanford University, Stanford, CA
| | - Meena Easwaran
- Department of Otolaryngology - Head & Neck Surgery, School of Medicine, Stanford University, Stanford, CA
- Department of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA
| | - Joshua D. Martinez
- Department of Otolaryngology - Head & Neck Surgery, School of Medicine, Stanford University, Stanford, CA
| | - Akari Kimura
- Department of Otolaryngology - Head & Neck Surgery, School of Medicine, Stanford University, Stanford, CA
| | - Elizabeth Erickson-DiRenzo
- Department of Otolaryngology - Head & Neck Surgery, School of Medicine, Stanford University, Stanford, CA
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Sivrice ME, Akın V, Erkılınç G, Yasan H, Tüz M, Okur E, Kumbul YÇ, Çiriş İM. Frozen Section Evaluation for Surgical Margins in Laryngeal Squamous Cell Carcinoma: Is it a Reliable Method for Partial and Total Laryngectomies? Head Neck Pathol 2023; 17:172-177. [PMID: 36171534 PMCID: PMC10063756 DOI: 10.1007/s12105-022-01485-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 03/24/2022] [Accepted: 08/02/2022] [Indexed: 10/14/2022]
Abstract
BACKGROUND In this study, we aimed to compare the accuracy of frozen section evaluation in partial and total laryngectomies performed to treat laryngeal squamous cell carcinoma . METHODS A retrospective study was conducted to evaluate the efficacy and accuracy of frozen section analysis for laryngeal squamous cell carcinoma of 65 patients, operated at a tertiary hospital. Two groups were recruited according to the surgical procedure. RESULTS The sensitivity and specificity of frozen section diagnosis in laryngeal cancer were 20% and 99.73%, respectively. For partial laryngectomy, the sensitivity was 16.66% and specificity was 100%. For total laryngectomy, sensitivity was 22.2% and specificity 99.13%. Discordances between the initial frozen section diagnosis and the subsequent permanent section diagnosis were found in 13 (3.35%) pairs (3.37% partial laryngectomy and 3.33% total laryngectomy). CONCLUSION Our study shows that the surgical method applied has no effect on discordances. However, sampling errors are likely to be more common in partial laryngectomy procedures. It should be kept in mind that the sensitivity of frozen section evaluation is low.
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Affiliation(s)
- Mehmet Emre Sivrice
- Department of Oto-Rhino-Laryngology and Head&Neck Surgery, Faculty of Medicine, Süleyman Demirel University, 32200 Isparta, Isparta Turkey
| | - Vural Akın
- Department of Oto-Rhino-Laryngology and Head&Neck Surgery, Faculty of Medicine, Süleyman Demirel University, 32200 Isparta, Isparta Turkey
| | - Gamze Erkılınç
- Department of Pathology, Urla State Hospital, İzmir, Turkey
| | - Hasan Yasan
- Department of Oto-Rhino-Laryngology and Head&Neck Surgery, Faculty of Medicine, Süleyman Demirel University, 32200 Isparta, Isparta Turkey
| | - Mustafa Tüz
- Department of Oto-Rhino-Laryngology and Head&Neck Surgery, Faculty of Medicine, Süleyman Demirel University, 32200 Isparta, Isparta Turkey
| | - Erdoğan Okur
- Department of Oto-Rhino-Laryngology and Head&Neck Surgery, Faculty of Medicine, Süleyman Demirel University, 32200 Isparta, Isparta Turkey
| | - Yusuf Çağdaş Kumbul
- Department of Oto-Rhino-Laryngology and Head&Neck Surgery, Faculty of Medicine, Süleyman Demirel University, 32200 Isparta, Isparta Turkey
| | - İbrahim Metin Çiriş
- Department of Pathology, Faculty of Medicine, Süleyman Demirel University, Isparta, Turkey
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Noyes EA, DeVore EK, Carroll TL. A case of true vocal fold jaundice. Am J Otolaryngol 2022; 43:103456. [PMID: 35417838 DOI: 10.1016/j.amjoto.2022.103456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 04/04/2022] [Indexed: 11/28/2022]
Abstract
OBJECTIVES While jaundice is frequently described in the sclera and skin, there are few reports of true vocal fold jaundice in patients with high bilirubin, and no reports by otolaryngologists in the literature. Here we describe a case of a patient with bilateral true vocal fold jaundice and discuss the potential pathogenesis and implications of this finding. METHODS A 29-year-old man with history of Dubin-Johnson Syndrome presented with cough and difficulty breathing and was incidentally found to have persistent yellow discoloration of the true vocal folds bilaterally. RESULTS Videolaryngoscopic exam demonstrated bilateral true vocal fold yellow discoloration with sparing of nearby laryngeal structures on initial presentation and follow-up exam. Direct and total bilirubin levels were found to be elevated. CONCLUSION A patient with benign Dubin-Johnson Syndrome and elevated total and direct bilirubin was incidentally found to have bilateral vocal fold jaundice. Jaundice and the presence of bilirubin do not appear to cause harm to the function or health of the true vocal folds and may be related to the high concentration of elastin present in the true vocal folds.
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Affiliation(s)
| | - Elliana K DeVore
- Department of Otolaryngology-Head and Neck Surgery, Massachusetts Eye and Ear Infirmary, Boston, MA, USA
| | - Thomas L Carroll
- Division of Otolaryngology-Head and Neck Surgery, Brigham and Women's Hospital, Boston, MA, USA; Department of Otolaryngology-Head and Neck Surgery, Harvard Medical School, Boston, MA, USA
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Coburn PT, Li X, Li JY, Kishimoto Y, Li-Jessen NY. Progress in Vocal Fold Regenerative Biomaterials: An Immunological Perspective. ADVANCED NANOBIOMED RESEARCH 2022; 2:2100119. [PMID: 35434718 PMCID: PMC9007544 DOI: 10.1002/anbr.202100119] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Vocal folds, housed in the upper respiratory tract, are important to daily breathing, speech and swallowing functions. Irreversible changes to the vocal fold mucosae, such as scarring and atrophy, require a regenerative medicine approach to promote a controlled regrowth of the extracellular matrix (ECM)-rich mucosa. Various biomaterial systems have been engineered with an emphasis on stimulating local vocal fold fibroblasts to produce new ECM. At the same time, it is imperative to limit the foreign body reaction and associated immune components that can hinder the integration of the biomaterial into the host tissue. Modern biomaterial designs have become increasingly focused on actively harnessing the immune system to accelerate and optimize the process of tissue regeneration. An array of physical and chemical biomaterial parameters have been reported to effectively modulate local immune cells, such as macrophages, to initiate tissue repair, stimulate ECM production, promote biomaterial-tissue integration, and restore the function of the vocal folds. In this perspective paper, the unique immunological profile of the vocal folds will first be reviewed. Key physical and chemical biomaterial properties relevant to immunomodulation will then be highlighted and discussed. A further examination of the physicochemical properties of recent vocal fold biomaterials will follow to generate deeper insights into corresponding immune-related outcomes. Lastly, a perspective will be offered on the opportunity of integrating material-led immunomodulatory strategies into future vocal fold tissue engineering therapies.
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Affiliation(s)
- Patrick T. Coburn
- School of Communication Sciences and Disorders, McGill University, Canada
| | - Xuan Li
- Department of Mechanical Engineering, McGill University, Canada
| | - Jianyu. Y. Li
- Department of Mechanical Engineering, McGill University, Canada
- Department of Biomedical Engineering, McGill University, Canada
| | - Yo Kishimoto
- Department of Otolaryngology – Head & Neck Surgery, Kyoto University, Kyoto, Japan
| | - Nicole Y.K. Li-Jessen
- School of Communication Sciences and Disorders, McGill University, Canada
- Department of Biomedical Engineering, McGill University, Canada
- Department of Otolaryngology – Head & Neck Surgery, McGill University, Canada
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Lepka P, Zatoński T, Barnaś S, Jaśkiewicz-Burnejko E, Hałoń A. Analysis of laryngeal brush cytology results in patients of the 4th Military Teaching Hospital with Polyclinic in Wrocław in 2019–2020. Otolaryngol Pol 2022; 76:15-23. [DOI: 10.5604/01.3001.0015.7083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Introduction: Cytological examination of exfoliated epithelial cells of the cervix, oral cavity or anus has been successfully used for years in the diagnosis of diseases of these organs. In these cases, test samples are taken from accessible areas.
Purpose: The aim of this study was to analyse cytological smears of the laryngeal epithelium in patients hospitalised in the Clinic of Otolaryngology, Head and Neck Surgery of the 4th Military Teaching Hospital with Polyclinic in Wrocław in 2019–2020. The analysis was to determine if representative test samples could be obtained from the laryngeal epithelium.
Material and methods: The study was performed on 92 patients, including 34 females
(37.0%), aged between 26 and 85 years, who, while undergoing laryngeal microsurgery with a Kleinsasser lanryngoscope in 2019–2020, had test samples collected for cytological examination.
Results: Ninety of 92 cytological smears (97.8%) were analysed. The examinations that were not included in the analysis were unclear. The smears were assessed according to a scale based on the modification of the Bethesda scale. The result of the cytological examination was more often abnormal. Among the abnormal examination results, HSIL with features of invasion was the most common.
Conclusions: Cytological examination can successfully evaluate laryngeal epithelial cells. An abnormal laryngeal cytology smear is often hypercellular; however, it rarely shows inflammatory cells. There was no statistically significant relationship between the cytological examination result and overall smear quality, cell count, erythrocyte count or degree of inflammation.
Keywords: brush cytology, cytological smear, intraepithelial neoplasia, laryngeal brush cytology
List of abbreviations: FI-normal cytology result, LSIL-low-grade squamous intraepithelial
lesion, HSIL-high-grade squamous intraepithelial lesion, ASCUS-abnormal squamous cells of undetermined significance, WWP-squamous epithelium
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Affiliation(s)
- Paulina Lepka
- Klinika Otolaryngologii, Chirurgii Głowy i Szyi 4 Wojskowego Szpitala Klinicznego z Polikliniką we Wrocławiu
| | - Tomasz Zatoński
- Katedra i Klinika Otolaryngologii, Chirurgii Głowy i Szyi Uniwersytetu Medycznego we Wrocławiu
| | - Szczepan Barnaś
- Klinika Otolaryngologii, Chirurgii Głowy i Szyi 4 Wojskowego Szpitala Klinicznego z Polikliniką we Wrocławiu
| | - Emilia Jaśkiewicz-Burnejko
- Klinika Otolaryngologii, Chirurgii Głowy i Szyi 4 Wojskowego Szpitala Klinicznego z Polikliniką we Wrocławiu
| | - Agnieszka Hałoń
- Katedra Patomorfologii i Cytologii Onkologicznej Uniwersytetu Medycznego we Wrocławiu
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Koyama S, Kondo K, Ueha R, Kashiwadani H, Heinbockel T. Possible Use of Phytochemicals for Recovery from COVID-19-Induced Anosmia and Ageusia. Int J Mol Sci 2021; 22:8912. [PMID: 34445619 PMCID: PMC8396277 DOI: 10.3390/ijms22168912] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/10/2021] [Accepted: 08/13/2021] [Indexed: 12/14/2022] Open
Abstract
The year 2020 became the year of the outbreak of coronavirus, SARS-CoV-2, which escalated into a worldwide pandemic and continued into 2021. One of the unique symptoms of the SARS-CoV-2 disease, COVID-19, is the loss of chemical senses, i.e., smell and taste. Smell training is one of the methods used in facilitating recovery of the olfactory sense, and it uses essential oils of lemon, rose, clove, and eucalyptus. These essential oils were not selected based on their chemical constituents. Although scientific studies have shown that they improve recovery, there may be better combinations for facilitating recovery. Many phytochemicals have bioactive properties with anti-inflammatory and anti-viral effects. In this review, we describe the chemical compounds with anti- inflammatory and anti-viral effects, and we list the plants that contain these chemical compounds. We expand the review from terpenes to the less volatile flavonoids in order to propose a combination of essential oils and diets that can be used to develop a new taste training method, as there has been no taste training so far. Finally, we discuss the possible use of these in clinical settings.
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Affiliation(s)
- Sachiko Koyama
- Department of Chemistry, Indiana University, Bloomington, IN 47405, USA
| | - Kenji Kondo
- Department of Otolaryngology, Faculty of Medicine, The University of Tokyo, Tokyo 113-8655, Japan;
| | - Rumi Ueha
- Department of Otolaryngology, Faculty of Medicine, The University of Tokyo, Tokyo 113-8655, Japan;
- Swallowing Center, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Hideki Kashiwadani
- Department of Physiology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8544, Japan;
| | - Thomas Heinbockel
- Department of Anatomy, College of Medicine, Howard University, Washington, DC 20059, USA
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Aggarwal N, Yadav J, Chhakara S, Janjua D, Tripathi T, Chaudhary A, Chhokar A, Thakur K, Singh T, Bharti AC. Phytochemicals as Potential Chemopreventive and Chemotherapeutic Agents for Emerging Human Papillomavirus-Driven Head and Neck Cancer: Current Evidence and Future Prospects. Front Pharmacol 2021; 12:699044. [PMID: 34354591 PMCID: PMC8329252 DOI: 10.3389/fphar.2021.699044] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 06/17/2021] [Indexed: 12/20/2022] Open
Abstract
Head and neck cancer (HNC) usually arises from squamous cells of the upper aerodigestive tract that line the mucosal surface in the head and neck region. In India, HNC is common in males, and it is the sixth most common cancer globally. Conventionally, HNC attributes to the use of alcohol or chewing tobacco. Over the past four decades, portions of human papillomavirus (HPV)-positive HNC are increasing at an alarming rate. Identification based on the etiological factors and molecular signatures demonstrates that these neoplastic lesions belong to a distinct category that differs in pathological characteristics and therapeutic response. Slow development in HNC therapeutics has resulted in a low 5-year survival rate in the last two decades. Interestingly, HPV-positive HNC has shown better outcomes following conservative treatments and immunotherapies. This raises demand to have a pre-therapy assessment of HPV status to decide the treatment strategy. Moreover, there is no HPV-specific treatment for HPV-positive HNC patients. Accumulating evidence suggests that phytochemicals are promising leads against HNC and show potential as adjuvants to chemoradiotherapy in HNC. However, only a few of these phytochemicals target HPV. The aim of the present article was to collate data on various leading phytochemicals that have shown promising results in the prevention and treatment of HNC in general and HPV-driven HNC. The review explores the possibility of using these leads against HPV-positive tumors as some of the signaling pathways are common. The review also addresses various challenges in the field that prevent their use in clinical settings.
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Affiliation(s)
- Nikita Aggarwal
- Molecular Oncology Laboratory, Department of Zoology, Faculty of Science, University of Delhi, Delhi, India
| | - Joni Yadav
- Molecular Oncology Laboratory, Department of Zoology, Faculty of Science, University of Delhi, Delhi, India
| | - Suhail Chhakara
- Molecular Oncology Laboratory, Department of Zoology, Faculty of Science, University of Delhi, Delhi, India
| | - Divya Janjua
- Molecular Oncology Laboratory, Department of Zoology, Faculty of Science, University of Delhi, Delhi, India
| | - Tanya Tripathi
- Molecular Oncology Laboratory, Department of Zoology, Faculty of Science, University of Delhi, Delhi, India
| | - Apoorva Chaudhary
- Molecular Oncology Laboratory, Department of Zoology, Faculty of Science, University of Delhi, Delhi, India
| | - Arun Chhokar
- Molecular Oncology Laboratory, Department of Zoology, Faculty of Science, University of Delhi, Delhi, India
| | - Kulbhushan Thakur
- Molecular Oncology Laboratory, Department of Zoology, Faculty of Science, University of Delhi, Delhi, India
| | - Tejveer Singh
- Molecular Oncology Laboratory, Department of Zoology, Faculty of Science, University of Delhi, Delhi, India
| | - Alok Chandra Bharti
- Molecular Oncology Laboratory, Department of Zoology, Faculty of Science, University of Delhi, Delhi, India
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Dorris ER, Russell J, Murphy M. Post-intubation subglottic stenosis: aetiology at the cellular and molecular level. Eur Respir Rev 2021; 30:30/159/200218. [PMID: 33472959 PMCID: PMC9489001 DOI: 10.1183/16000617.0218-2020] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 09/20/2020] [Indexed: 02/07/2023] Open
Abstract
Subglottic stenosis (SGS) is a narrowing of the airway just below the vocal cords. This narrowing typically consists of fibrotic scar tissue, which may be due to a variety of diseases. This review focuses on post-intubation (PI) SGS. SGS can result in partial or complete narrowing of the airway. This narrowing is caused by fibrosis and can cause serious breathing difficulties. It can occur in both adults and children. The pathogenesis of post-intubation SGS is not well understood; however, it is considered to be the product of an abnormal healing process. This review discusses how intubation can change the local micro-environment, leading to dysregulated tissue repair. We discuss how mucosal inflammation, local hypoxia and biomechanical stress associated with intubation can promote excess tissue deposition that occurs during the pathological process of SGS. COVID-19 may cause an increased incidence of subglottic stenosis (SGS). In this review, the cellular and molecular aetiology of post-intubation SGS is outlined and we discuss how better knowledge of the underlying biology can inform SGS management.https://bit.ly/2RSliRK
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Affiliation(s)
- Emma R Dorris
- National Children's Research Centre, Our Lady's Children's Hospital, Dublin, Ireland .,School of Medicine, University College Dublin, Dublin, Ireland
| | - John Russell
- Children's Hospital Ireland Crumlin, Dublin, Ireland
| | - Madeline Murphy
- National Children's Research Centre, Our Lady's Children's Hospital, Dublin, Ireland.,School of Medicine, University College Dublin, Dublin, Ireland
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Tachibana T, Kariya S, Wani Y, Komatsubara Y, Naoi Y, Kuroda K, Fushimi S, Hotta M, Haruna K, Nagatani T, Makino T, Kataoka Y, Nishizaki K. Supraglottic subepithelial benign mass lesions: Focus on clinical features of sialolipoma-like lesion. Auris Nasus Larynx 2020; 48:154-160. [PMID: 32807554 DOI: 10.1016/j.anl.2020.07.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 07/13/2020] [Accepted: 07/21/2020] [Indexed: 11/17/2022]
Abstract
OBJECTIVES Sialolipoma has been classified as a benign soft tissue lesion in the 2017 World Health Organization classification of head and neck tumors. To our knowledge, only one case of laryngeal sialolipoma has been reported in the English literature. We conducted a retrospective study to identify clinical characteristics of supraglottic sialolipoma-like lesion and differentiate it from other supraglottic subepithelial masses. METHODS Medical records of 16 patients with supraglottic subepithelial benign mass lesions who underwent histological evaluation between 2003 and 2019 were retrospectively analyzed. Sialolipoma-like lesion was defined as a local finding of a well-circumscribed gross mass with pathological presence of salivary gland-like parenchymal lobules with evenly interspersed adipose tissue. RESULTS Eight patients showed histological positivity for sialolipoma-like lesion, 3 for amyloidosis, 2 for hemangioma, and 1 each for cyst, lymphoid hyperplasia, and chondrometaplasia. Sialolipoma-like lesion tended to be predominant among men; those affected had a mean age of 52.8 (range, 39-74) years. By contrast, among patients with amyloidosis, the ratio of men to women was 1:2 (100% vs. 33%; p = 0.055). Fiberscopic examination of all patients with sialolipoma-like lesions identified well-circumscribed, yellowish masses, closely resembling local amyloidosis findings. Sialolipoma-like lesion was associated with a significantly higher body-mass index (BMI; 27.4 ± 2.8 kg/m2) than amyloidosis (21.6 ± 1.4 kg/m2; p = 0.014). The transoral approach was used for lesion resection in all patients with sialolipoma-like lesion. No patient experienced postoperative recurrence. CONCLUSION Laryngeal sialolipoma-like lesion might be more prevalent than was previously reported, and histological examination is important to differentiate it from amyloidosis. Supraglottic sialolipoma-like lesion must be differentially diagnosed in patients with high BMI presenting with well-circumscribed, yellowish supraglottic masses.
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Affiliation(s)
- Tomoyasu Tachibana
- Departments of Otolaryngology, Japanese Red Cross Society Himeji Hospital, 12-1 Shimoteno 1-Chome, Himeji City, Hyogo 670-8540, Japan.
| | - Shin Kariya
- Department of Otolaryngology Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama City, Okayama 700-8558, Japan
| | - Yoji Wani
- Departments of Pathology, Japanese Red Cross Society Himeji Hospital, 12-1 Shimoteno 1-Chome, Himeji City, Hyogo 670-8540, Japan
| | - Yasutoshi Komatsubara
- Departments of Otolaryngology, Japanese Red Cross Society Himeji Hospital, 12-1 Shimoteno 1-Chome, Himeji City, Hyogo 670-8540, Japan
| | - Yuto Naoi
- Departments of Otolaryngology, Japanese Red Cross Society Himeji Hospital, 12-1 Shimoteno 1-Chome, Himeji City, Hyogo 670-8540, Japan
| | - Kazunori Kuroda
- Departments of Otolaryngology, Japanese Red Cross Society Himeji Hospital, 12-1 Shimoteno 1-Chome, Himeji City, Hyogo 670-8540, Japan
| | - Soichiro Fushimi
- Departments of Pathology, Japanese Red Cross Society Himeji Hospital, 12-1 Shimoteno 1-Chome, Himeji City, Hyogo 670-8540, Japan
| | - Machiko Hotta
- Departments of Pathology, Japanese Red Cross Society Himeji Hospital, 12-1 Shimoteno 1-Chome, Himeji City, Hyogo 670-8540, Japan
| | - Katsuya Haruna
- Departments of Inspection technology, Japanese Red Cross Society Himeji Hospital, 12-1 Shimoteno 1-Chome, Himeji City, Hyogo 670-8540, Japan
| | - Tami Nagatani
- Departments of Inspection technology, Japanese Red Cross Society Himeji Hospital, 12-1 Shimoteno 1-Chome, Himeji City, Hyogo 670-8540, Japan
| | - Takuma Makino
- Department of Otolaryngology Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama City, Okayama 700-8558, Japan
| | - Yuko Kataoka
- Department of Otolaryngology Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama City, Okayama 700-8558, Japan
| | - Kazunori Nishizaki
- Department of Otolaryngology Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama City, Okayama 700-8558, Japan
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McCormick CA, Samuels TL, Battle MA, Frolkis T, Blumin JH, Bock JM, Wells C, Yan K, Altman KW, Johnston N. H+/K+ATPase Expression in the Larynx of Laryngopharyngeal Reflux and Laryngeal Cancer Patients. Laryngoscope 2020; 131:130-135. [PMID: 32250454 DOI: 10.1002/lary.28643] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 02/27/2020] [Accepted: 03/03/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVES The gastric H+/K+ ATPase proton pump has previously been shown to be expressed in the human larynx, however its contribution to laryngopharyngeal reflux (LPR) signs, symptoms and associated diseases such as laryngeal cancer is unknown. Proton pump expression in the larynx of patients with LPR and laryngeal cancer was investigated herein. A human hypopharyngeal cell line expressing the proton pump was generated to investigate its effects. STUDY DESIGN In-vitro translational. METHODS Laryngeal biopsies were obtained from three LPR and eight LSCC patients. ATP4A, ATP4B and HRPT1 were assayed via qPCR. Human hypopharyngeal FaDu cell lines stably expressing proton pump were created using lentiviral transduction and examined via transmission electron microscopy and qPCR for genes associated with inflammation or laryngeal cancer. RESULTS Expression of ATP4A and ATP4B was detected in 3/3 LPR, 4/8 LSCC-tumor and 3/8 LSCC-adjacent specimens. Expression of ATP4A and ATP4B in FaDu elicited mitochondrial damage and expression of IL1B, PTGS2, and TNFA (P < .0001); expression of ATP4B alone did not. CONCLUSIONS Gastric proton pump subunits are expressed in the larynx of LPR and LSCC patients. Mitochondrial damage and changes in gene expression observed in cells expressing the full proton pump, absent in those expressing a single subunit, suggest that acid secretion by functional proton pumps expressed in upper airway mucosa may elicit local cell and molecular changes associated with inflammation and cancer. LEVEL OF EVIDENCE NA Laryngoscope, 131:130-135, 2021.
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Affiliation(s)
- Caroline A McCormick
- Department of Otolaryngology, Medical College of Wisconsin, Milwaukee, Wisconsin, U.S.A
| | - Tina L Samuels
- Department of Otolaryngology, Medical College of Wisconsin, Milwaukee, Wisconsin, U.S.A
| | - Michele A Battle
- Department of Cell Biology, Neurobiology, & Anatomy, Medical College of Wisconsin, Milwaukee, Wisconsin, U.S.A
| | - Talia Frolkis
- Department of Cell Biology, Neurobiology, & Anatomy, Medical College of Wisconsin, Milwaukee, Wisconsin, U.S.A
| | - Joel H Blumin
- Department of Otolaryngology, Medical College of Wisconsin, Milwaukee, Wisconsin, U.S.A
| | - Jonathan M Bock
- Department of Otolaryngology, Medical College of Wisconsin, Milwaukee, Wisconsin, U.S.A
| | - Clive Wells
- Department of Microbiology & Immunology, Medical College of Wisconsin, Milwaukee, Wisconsin, U.S.A
| | - Ke Yan
- Department of Pediatrics Quantitative Health Sciences, Medical College of Wisconsin, Milwaukee, Wisconsin, U.S.A
| | - Kenneth W Altman
- Department of Otolaryngology, Geisinger Health System, Danville, California, U.S.A
| | - Nikki Johnston
- Department of Otolaryngology, Medical College of Wisconsin, Milwaukee, Wisconsin, U.S.A.,Department of Microbiology & Immunology, Medical College of Wisconsin, Milwaukee, Wisconsin, U.S.A
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12
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Shi J, Uyeda JW, Duran-Mendicuti A, Potter CA, Nunez DB. Multidetector CT of Laryngeal Injuries: Principles of Injury Recognition. Radiographics 2019; 39:879-892. [DOI: 10.1148/rg.2019180076] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Junzi Shi
- From the Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis St, Boston, MA 02115
| | - Jennifer W. Uyeda
- From the Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis St, Boston, MA 02115
| | - Alejandra Duran-Mendicuti
- From the Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis St, Boston, MA 02115
| | - Christopher A. Potter
- From the Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis St, Boston, MA 02115
| | - Diego B. Nunez
- From the Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis St, Boston, MA 02115
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Levendoski EE, Leydon C, Thibeault SL. Vocal fold epithelial barrier in health and injury: a research review. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2014; 57:1679-91. [PMID: 24686981 PMCID: PMC4557797 DOI: 10.1044/2014_jslhr-s-13-0283] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Accepted: 03/04/2014] [Indexed: 05/07/2023]
Abstract
PURPOSE Vocal fold epithelium is composed of layers of individual epithelial cells joined by junctional complexes constituting a unique interface with the external environment. This barrier provides structural stability to the vocal folds and protects underlying connective tissue from injury while being nearly continuously exposed to potentially hazardous insults, including environmental or systemic-based irritants such as pollutants and reflux, surgical procedures, and vibratory trauma. Small disruptions in the epithelial barrier may have a large impact on susceptibility to injury and overall vocal health. The purpose of this article is to provide a broad-based review of current knowledge of the vocal fold epithelial barrier. METHOD A comprehensive review of the literature was conducted. Details of the structure of the vocal fold epithelial barrier are presented and evaluated in the context of function in injury and pathology. The importance of the epithelial-associated vocal fold mucus barrier is also introduced. RESULTS/CONCLUSIONS Information presented in this review is valuable for clinicians and researchers as it highlights the importance of this understudied portion of the vocal folds to overall vocal health and disease. Prevention and treatment of injury to the epithelial barrier is a significant area awaiting further investigation.
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14
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Xu H, Kvit AA, Devine EE, Ying X, Dong P. Voice Outcome of Modified Frontolateral Partial Laryngectomy in Excised Canine Larynges and Finite Element Model. Otolaryngol Head Neck Surg 2014; 151:294-300. [PMID: 24850781 DOI: 10.1177/0194599814535185] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Accepted: 04/21/2014] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To evaluate vocal parameters after modified frontolateral partial laryngectomy (MFLPL) and frontolateral partial laryngectomy (FLPL) in both excised canine and finite element models. STUDY DESIGN FLPL and MFLPL were compared, using a prospective paired case control laboratory study with excised canine larynx and computational modeling. SETTING Basic science study conducted in university laboratory. METHODS FLPL and MFLPL were performed serially on 9 excised canine larynges. The excised larynx bench apparatus was used to collect phonation threshold pressure (PTP) and high-speed video data. A finite element model was built to compare a normal vocal fold with applied tension, a cut fold with no applied tension (simulating FLPL), and a cut fold with applied tension (simulating MFLPL). Stress values and distributions across the 3 conditions were computed. RESULTS The mean PTP increase after MFLPL (15.45-17.46 cmH2O) was not statistically significant. In the excised canine model, fundamental frequency (F0) showed a significant increase for the MFLPL (P = .039). Differences in vibration amplitudes were not statistically significant. Von Mises stress distribution was most similar between the MFLPL model and the normal fold. Maximum von Mises stresses at the midline were 17.56, 21.63, and 5.10 kPa for the normal, MFLPL, and FLPL, respectively, and 47.57, 63.98, and 101.97 kPa at the peripheries. CONCLUSIONS From these results, we conclude that MFLPL has the potential to give a better voice outcome while avoiding tracheotomy in partial laryngectomy patients. In vivo study in canines to examine the healing process would lend further evidence-based support for this surgical method.
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Affiliation(s)
- Hongming Xu
- Department of Otolaryngology-Head and Neck Surgery, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Anton A Kvit
- Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin, USA
| | - Erin E Devine
- Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin, USA
| | - Xinjiang Ying
- Department of Otolaryngology-Head and Neck Surgery, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Pin Dong
- Department of Otolaryngology-Head and Neck Surgery, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, People's Republic of China
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Ayres JG, Mansur AH. Vocal cord dysfunction and severe asthma: considering the total airway. Am J Respir Crit Care Med 2011; 184:2-3. [PMID: 21737588 DOI: 10.1164/rccm.201103-0582ed] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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16
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Pickup BA, Thomson SL. Identification of geometric parameters influencing the flow-induced vibration of a two-layer self-oscillating computational vocal fold model. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2011; 129:2121-32. [PMID: 21476668 PMCID: PMC3087392 DOI: 10.1121/1.3557046] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Simplified models have been used to simulate and study the flow-induced vibrations of the human vocal folds. While it is clear that the models' responses are sensitive to geometry, it is not clear how and to what extent specific geometric features influence model motion. In this study geometric features that played significant roles in governing the motion of a two-layer (body-cover), two-dimensional, finite element vocal fold model were identified. The model was defined using a flow solver based on the viscous, unsteady, Navier-Stokes equations and a solid solver that allowed for large strain and deformation. A screening-type design-of-experiments approach was used to identify the relative importance of 13 geometric parameters. Five output measures were analyzed to assess the magnitude of each geometric parameter's effect on the model's motion. The measures related to frequency, glottal width, flow rate, intraglottal angle, and intraglottal phase delay. The most significant geometric parameters were those associated with the cover--primarily the pre-phonatory intraglottal angle--as well as the body inferior angle. Some models exhibited evidence of improved model motion, including mucosal wave-like motion and alternating convergent-divergent glottal profiles, although further improvements are still needed to more closely mimic human vocal fold motion.
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Affiliation(s)
- Brian A Pickup
- Department of Mechanical Engineering, Brigham Young University, Provo, Utah 84602, USA
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Cook DD, Nauman E, Mongeau L. Ranking vocal fold model parameters by their influence on modal frequencies. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2009; 126:2002-10. [PMID: 19813811 PMCID: PMC2771058 DOI: 10.1121/1.3183592] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2009] [Revised: 06/26/2009] [Accepted: 06/30/2009] [Indexed: 05/24/2023]
Abstract
The purpose of this study was to identify, using computational models, the vocal fold parameters which are most influential in determining the vibratory characteristics of the vocal folds. The sensitivities of vocal folds modal frequencies to variations model parameters were used to determine the most influential parameters. A detailed finite element model of the human vocal fold was created. The model was defined by eight geometric and six material parameters. The model included transitional boundary regions to idealize the complex physiological structure of real human subjects. Parameters were simultaneously varied over ranges representative of actual human vocal folds. Three separate statistical analysis techniques were used to identify the most and least sensitive model parameters with respect to modal frequency. The results from all three methods consistently suggest that a set of five parameters are most influential in determining the vibratory characteristics of the vocal folds.
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Affiliation(s)
- Douglas D Cook
- School of Mechanical Engineering, Purdue University, 140 South Martin Jischke Drive, West Lafayette, Indiana 47907, USA.
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Ximenes Filho JA, Ferreira FV, Rocha Filho FD, Tsuji DH, Sennes LU. Células de Langerhans no epitélio da prega vocal humana: estudo imunoistoquímico. ACTA ACUST UNITED AC 2004. [DOI: 10.1590/s0034-72992004000500002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Células de Langerhans (CL) são um tipo de células dendríticas que têm funções que envolvem apresentação de antígeno e a estimulação de resposta T dependente. Elas representam aproximadamente 4% das células do epitélio laríngeo. OBJETIVO: Identificar a presença de CL no epitélio das pregas vocais, comparar suas subpopulações, bem com comparar a capacidade de quatro marcadores imunoistoquímicos. FORMA DE ESTUDO: Experimental. CASUÍSTICA E MÉTODO: Seis cadáveres, 3 homens e 3 mulheres foram estudados. Foram analisadas amostras de pele e das pregas vocais coradas e imunomarcadas para vimentina, proteína S-100, CD-68 e fascina. Após análise histológica, foi realizado o teste t de Student e análise de variância no estudo estatístico. RESULTADOS E CONCLUSÕES: Foi possível identificar a presença de CL no epitélio das pregas vocais de humanos não fumantes de ambos os sexos. A fascina, a vimentina o CD-68 mostraram-se bons marcadores das CL, enquanto a proteína S-100 teve estatisticamente menor poder de marcação tanto na prega vocal (p=0,01) como na pele (p=0,02). Foi possível identificar três diferentes subpopulações de CL presentes tanto na prega vocal como na pele destes indivíduos, contudo apenas na pele observarmos maior quantidade estatisticamente significante na camada basal do epitélio.
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Affiliation(s)
- J Ayres
- Department of Respiratory Medicine, Birmingham Heartlands Solihull NHS Trust, Bordesley Green East, Birmingham B9 5SS, UK.
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Abstract
A pediatric case of Langerhans cell histiocytosis leading to severe and recurrent subglottic stenosis, ultimately necessitating partial cricotracheal resection, is presented and the literature on this very rare disorder is briefly reviewed.
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Affiliation(s)
- M L Duynstee
- Department of Otorhinolaryngology, Erasmus University Medical Center Rotterdam, PO Box 1738, 3000 DR, Rotterdam, The Netherlands.
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