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Ogawa S, Kondo M, Ino K, Ii T, Imai R, Furukawa TA, Akechi T. Fear of Fear and Broad Dimensions of Psychopathology over the Course of Cognitive Behavioural Therapy for Panic Disorder with Agoraphobia in Japan. East Asian Arch Psychiatry 2017; 27:150-155. [PMID: 29259145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To examine the relationship of fear of fear and broad dimensions of psychopathology in panic disorder with agoraphobia over the course of cognitive behavioural therapy in Japan. METHODS A total of 177 Japanese patients with panic disorder with agoraphobia were treated with group cognitive behavioural therapy between 2001 and 2015. We examined associations between the change scores in Agoraphobic Cognitions Questionnaire or Body Sensations Questionnaire and the changes in subscales of Symptom Checklist-90 Revised during cognitive behavioural therapy controlling the change in panic disorder severity using multiple regression analysis. RESULTS Reduction in Agoraphobic Cognitions Questionnaire score was related to a decrease in all Symptom Checklist-90 Revised (SCL-90-R) subscale scores. Reduction in Body Sensations Questionnaire score was associated with a decrease in anxiety. Reduction in Panic Disorder Severity Scale score was not related to any SCL-90-R subscale changes. CONCLUSIONS Changes in fear of fear, especially maladaptive cognitions, may predict broad dimensions of psychopathology reductions in patients of panic disorder with agoraphobia over the course of cognitive behavioural therapy. For the sake of improving a broader range of psychiatric symptoms in patients of panic disorder with agoraphobia, more attention to maladaptive cognition changes during cognitive behavioural therapy is warranted.
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Fujitani K, Ando M, Sakamaki K, Terashima M, Kawabata R, Ito Y, Yoshikawa T, Kondo M, Kodera Y, Yoshida K. Multicentre observational study of quality of life after surgical palliation of malignant gastric outlet obstruction for gastric cancer. BJS Open 2017; 1:165-174. [PMID: 29951619 PMCID: PMC5989952 DOI: 10.1002/bjs5.26] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 09/14/2017] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Quality of life (QoL) is a key component in decision-making for surgical palliation, but QoL data in association with surgical palliation in advanced gastric cancer are scarce. The aim of this multicentre observational study was to examine the impact of surgical palliation on QoL in advanced gastric cancer. METHODS The study included patients with gastric outlet obstruction caused by incurable advanced primary gastric cancer who had no oral intake or liquid intake only. Patients underwent palliative distal/total gastrectomy or bypass surgery at the physician's discretion. The primary endpoint was change in QoL assessed at baseline, 14 days, 1 month and 3 months following surgical palliation by means of the EuroQoL Five Dimensions (EQ-5D™) questionnaire and the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire gastric cancer module (QLQ-STO22). Secondary endpoints were postoperative improvement in oral intake and surgical complications. RESULTS Some 104 patients (23 distal gastrectomy, 9 total gastrectomy, 70 gastrojejunostomy, 2 exploratory laparotomy) were enrolled from 35 institutions. The mean EQ-5D™ utility index scores remained consistent, with a baseline score of 0·74 and the change from baseline within ± 0·05. Gastric-specific symptoms showed statistically significant improvement from baseline. The majority of patients were able to eat solid food 2 weeks after surgery and tolerated it thereafter. The rate of overall morbidity of grade III or more according to the Clavien-Dindo classification was 9·6 per cent (10 patients) and the 30-day postoperative mortality rate was 1·9 per cent (2 patients). CONCLUSION In patients with gastric outlet obstruction caused by advanced gastric cancer, surgical palliation maintained QoL while improving solid food intake, with acceptable morbidity for at least the first 3 months after surgery. Registration number 000023494 (UMIN Clinical Trials Registry).
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Sato M, Kakumu T, Goto D, Kato T, Yogo N, Hase T, Morise M, Fukui T, Yokoi K, Sekido Y, Girard L, Minna J, Byers L, Heymach J, Coombes K, Kondo M, Hasegawa Y. P3.03-013 Identification of Proteosomal Catalytic Subunit PSMA6 as a Therapeutic Target for Lung Cancer through a Pooled shRNA Screen. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Mizutani K, Matsushima Y, Okada K, Yamagiwa A, Akeda T, Kondo M, Kakeda M, Habe K, Yamanaka K. 376 Is neutrophil the dominant IL-17 producer in psoriasis? J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kuriyama N, Ihara M, Koyama T, Mizuno T, Ozaki E, Kondo M, Tokuda T, Tamura A, Kazuo T, Nakagawa M, Watanabe Y. Vasoactive mid-regional pro-adrenomedullin is associated with cognitive decline accompa-nying deep white matter lesions in the brain: A longitudinal brain MRI study. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Matsushima Y, Okada K, Mizutani K, Kondo M, Habe K, Yamanaka K. 507 Skin inflammation leads immunoglobulin G aggregation and deposition in multiple organs. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Niwa F, Kondo M, Ishii R, Yamada T, Yamaguchi T, Mizuno T, Nakagawa M. The survey about cognitive decline in the presenile residents in Tango, Kyoto. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kondo M, Ohmichi T, Tsuji Y, Masanori M, Mizuno T. Constructive disturbance and abnormal regional cerebral blood flow distribution in amyotrophic lateral sclerosis with dementia. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Yoshimoto S, Araki T, Uemura T, Nezu T, Kondo M, Sasai K, Iwase M, Satake H, Yoshida A, Kikuchi M, Sekitani T. Wireless EEG patch sensor on forehead using on-demand stretchable electrode sheet and electrode-tissue impedance scanner. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2017; 2016:6286-6289. [PMID: 28269686 DOI: 10.1109/embc.2016.7592165] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A wireless electroencephalogram (EEG) sensor using a stretchable electrode sheet and electrode-tissue impedance measurement module is presented herein. The sensor can be attached to the forehead using biocompatible gel with the electrode sheet. The sensor is compactly designed for 3 cm × 9 cm × 6 mm with weight of 12 g. Impedance scanning circuit is also proposed to evaluate the skin surface condition before EEG measurements. We developed the impedance scanning board for 3 cm × 5 cm × 3 mm, with weight of 5.6 g. Results show that the proposed system demonstrates a promising performance in diagnosing the Alzheimer's disease using frequency domain analysis.
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Kimura T, Nakamura K, Miyoshi T, Yoshida M, Saito Y, Kondo M, Akazawa K, Ito H. P1108Effects of Tofogliflozin, an Sodium-glucose co-transporter 2 Inhibitor, on Cardiac Hypertrophy in Metabolic Model Rats. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Toyoda Y, Hanibuchi M, Kishi J, Kawano H, Morizumi S, Sato S, Kondo M, Takikura T, Tezuka T, Goto H, Nishioka Y. Clinical features and outcome of acute exacerbation of interstitial pneumonia associated with connective tissue disease. THE JOURNAL OF MEDICAL INVESTIGATION 2017; 63:294-9. [PMID: 27644575 DOI: 10.2152/jmi.63.294] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Acute exacerbation (AE) of interstitial lung disease is reported to be developed in not only idiopathic pulmonary fibrosis but also connective tissue disease-associated interstitial pneumonia (CTD-IP). As the significance of AE of CTD-IP has not been so widely recognized, its clinical feature is not fully elucidated. In the present study, we investigated the incidence, clinical features and outcome of AE of CTD-IP. We retrospectively reviewed admitted cases in our department with medical record from 2011 to 2015. Among 155 patients with CTD-IP, 10 (6.5%) cases developed AE (6 rheumatoid arthritis, 2 polymyositis/dermatomyositis, 1 systemic lupus erythematosus, 1 Sjögren syndrome), and one died of AE within 30 days. Median survival time after the onset of AE was 169 days in all 10 patients. The treatment with immunosuppressant just before AE onset might improve the prognosis of AE. The median survival time after the onset of AE was significantly longer in patients showing good response to corticosteroid compared with those with poor response to corticosteroid (805 days and 45 days, respectively) (p <0.05), suggesting that there are some cases in CTD-IP, showing the good response to corticosteroid even when AE was complicated. J. Med. Invest. 63: 294-299, August, 2016.
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Yamanaka K, Yamagiwa A, Akeda T, Kondo M, Kakeda M, Habe K, Mizutani H. 179 Neutrophil is not the dominant IL-17 producer in psoriasis. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Muroga T, Tanaka T, Kondo M, Nagasaka T, Xu Q. Characterization of Liquid Lithium Blanket with RAFM and V-Alloy for TBM and DEMO. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst09-a9024] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Li YF, Kondo M, Nagasaka T, Muroga T, Tsisar V. Influence of Exposure to Pb-Li on Microstructure and Mechanical Properties of 9Cr-ODS and CLAM Steels. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst11-a12380] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Kondo M, Tsuji M, Hara K, Arimura K, Yagi O, Tagaya E, Takeyama K, Tamaoki J. Chloride ion transport and overexpression of TMEM16A in a guinea-pig asthma model. Clin Exp Allergy 2017; 47:795-804. [PMID: 28109183 DOI: 10.1111/cea.12887] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 12/09/2016] [Accepted: 12/18/2016] [Indexed: 12/19/2022]
Abstract
BACKGROUND TMEM16A, a Ca-activated Cl channel, regulates various physiological functions such as mucin secretion. However, the role of TMEM16A in hyper-secretion in asthma is not fully understood. OBJECTIVE The aim of this study is to evaluate Cl ion transport via TMEM16A and determine the localization of TMEM16A in a guinea-pig asthma model. METHODS Guinea-pigs were sensitized with ovalbumin (OVA) i.p. on Days 1 and 8. On Day 22, we assessed OVA challenge-induced Cl ion transport in the sensitized tracheas ex vivo in an Ussing chamber, compared with the non-sensitized tracheas. We then examined the effect of T16Ainh-A01, a TMEM16A inhibitor, on the increase in Cl ion transport. The tracheal epithelium was immunostained with an anti-TMEM16A antibody. Epithelial cells from guinea-pig tracheas were cultured at the air-liquid interface in the presence of IL-13 for in vitro study. We studied the effect of TMEM16A inhibitors on Ca-dependent agonist, uridine triphosphate (UTP)-induced increases in Cl ion transport in the cultured cells. The cells were immunostained with an anti-TMEM16A antibody, an anti-MUC5AC antibody and an anti-α-tubulin antibody. RESULTS OVA challenge induced an increase in short circuit current within 1 min in the OVA-sensitized tracheas but not in the non-sensitized tracheas, which was inhibited by pretreatment of T16Ainh-A01. Sensitized tracheas showed goblet cell metaplasia with more positive TMEM16A immunostaining, particularly in the apical portion compared with the non-sensitized tracheas. The in vitro UTP-induced increase in Cl ion transport was strongly inhibited by pretreatment with T16Ainh-A01, benzbromarone, and niflumic acid. TMEM16A was positively immunostained at the apical portion and in the MUC5AC-positive area in IL-13-induced goblet cell metaplasia. CONCLUSIONS Antigen challenge and Ca-dependent agonist treatment increased Cl ion transport via the overexpression of TMEM16A in goblet cell metaplasia in a guinea-pig asthma model. TMEM16A inhibitors may be useful for the treatment of hyper-secretion in asthma.
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Uchino J, Katakami N, Yokoyama T, Naito T, Kondo M, Yamada K, Kitajima H, Yoshimori K, Sato K, Takiguchi Y, Takayama K, Eguchi K. ONO-7643/anamorelin for the treatment of patients with non-small cell lung cancer and cachexia: results from phase 2 study with Japanese patients. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw390.02] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Roels D, Ueno S, Kondo M, Leroy B. Unilateral carcinoma-associated retinopathy: diagnosis, serology and treatment. Acta Ophthalmol 2016. [DOI: 10.1111/j.1755-3768.2016.0428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Kondo M, Yamamoto S, Goto H, Nara Y. Nodules behind the ears: IgG4-related skin disease. Br J Dermatol 2016; 175:1056-1058. [DOI: 10.1111/bjd.14628] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/25/2016] [Indexed: 02/06/2023]
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Kondo M, Igawa K, Munetsugu T, Shibama S, Nishizawa A, Tokoro S, Yokozeki H. Increasing Numbers of Mast Cells in Skin Lesions of Hyperpigmented Mycosis Fungoides with Large-Cell Transformation. Ann Dermatol 2016; 28:115-6. [PMID: 26848231 PMCID: PMC4737817 DOI: 10.5021/ad.2016.28.1.115] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 03/02/2015] [Accepted: 03/21/2015] [Indexed: 11/08/2022] Open
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Morise M, Kondo M, Hasegawa Y. 396P Comparison of the incidence of skeletal related events (SREs) between non small cell lung cancer (NSCLC) and small cell lung cancer (SCLC). Ann Oncol 2015. [DOI: 10.1093/annonc/mdv531.29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Kondo M, Nakamura Y, Ishida Y, Shimada S. The 5-HT3 receptor is essential for exercise-induced hippocampal neurogenesis and antidepressant effects. Mol Psychiatry 2015; 20:1428-37. [PMID: 25403840 DOI: 10.1038/mp.2014.153] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 10/03/2014] [Accepted: 10/08/2014] [Indexed: 12/22/2022]
Abstract
Exercise has a variety of beneficial effects on brain structure and function, such as hippocampal neurogenesis, mood and memory. Previous studies have shown that exercise enhances hippocampal neurogenesis, induces antidepressant effects and improves learning behavior. Brain serotonin (5-hydroxytryptamine, 5-HT) levels increase following exercise, and the 5-HT system has been suggested to have an important role in these exercise-induced neuronal effects. However, the precise mechanism remains unclear. In this study, analysis of the 5-HT type 3A receptor subunit-deficient (htr3a(-/-)) mice revealed that lack of the 5-HT type 3 (5-HT3) receptor resulted in loss of exercise-induced hippocampal neurogenesis and antidepressant effects, but not of learning enhancement. Furthermore, stimulation of the 5-HT3 receptor promoted neurogenesis. These findings demonstrate that the 5-HT3 receptor is the critical target of 5-HT action in the brain following exercise, and is indispensable for hippocampal neurogenesis and antidepressant effects induced by exercise. This is the first report of a pivotal 5-HT receptor subtype that has a fundamental role in exercise-induced morphological changes and psychological effects.
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Sakai N, Yabuuchi H, Kondo M, Matsuo Y, Kamitani T, Nagao M, Jinnouchi M, Yonezawa M, Kojima T, Yano Y, Honda H. Low-dose CT screening using hybrid iterative reconstruction: confidence ratings of diagnoses of simulated lesions other than lung cancer. Br J Radiol 2015; 88:20150159. [PMID: 26153902 DOI: 10.1259/bjr.20150159] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE To evaluate the confidence ratings of diagnoses of simulated lesions other than lung cancer on low-dose screening CT with hybrid iterative reconstruction (IR). METHODS Simulated lesions (emphysema, mediastinal masses and interstitial pneumonia) in a chest phantom were scanned by a 320-row area detector CT. The scans were performed by 64-row and 160-row helical scans at various dose levels and were reconstructed by filtered back projection (FBP) and IR. Emphysema, honeycombing and reticular opacity were visually scored on a four-point scale by six thoracic radiologists. The ground-glass opacity as a percentage of total lung volume (%GGO), CT value and contrast-to-noise ratio (CNR) of mediastinal masses were calculated. These scores and values were compared between FBP and IR. Wilcoxon's signed-rank test was used (p < 0.05). Interobserver agreements were evaluated by κ statistics. RESULTS There were no significant differences in visual assessment. Interobserver agreement was almost perfect. CT values were almost equivalent between FBP and IR, whereas CNR with IR was significantly higher than that with FBP. %GGO significantly increased at low-dose levels with FBP; however, IR suppressed the elevation. CONCLUSION The confidence ratings of diagnoses of simulated lesions other than lung cancer on low-dose CT screening were not degraded with hybrid IR compared with FBP. ADVANCES IN KNOWLEDGE Hybrid IR did not degrade the confidence ratings of diagnoses on visual assessment and differential diagnoses based on CT value of mediastinal masses, and it showed the advantage of higher GGO conspicuity at low-dose level. Radiologists can analyse images of hybrid IR alone on low-dose CT screening for lung cancer.
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Tsuchiya S, Kondo M, Okamoto K, Takase Y. The cumulative contact enhancement test. CURRENT PROBLEMS IN DERMATOLOGY 2015; 14:208-19. [PMID: 4064746 DOI: 10.1159/000411614] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Kondo M, Woldegiorgis A, Tilahun H, Harris C. Characterization of inpatient admission within a large HIV treatment
program in Ethiopia. Ann Glob Health 2015. [DOI: 10.1016/j.aogh.2015.02.796] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Tsuboi Y, Honda K, Bae YC, Shinoda M, Kondo M, Katagiri A, Echizenya S, Kamakura S, Lee J, Iwata K. Morphological and functional changes in regenerated primary afferent fibres following mental and inferior alveolar nerve transection. Eur J Pain 2014; 19:1258-66. [PMID: 25523341 DOI: 10.1002/ejp.650] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/20/2014] [Indexed: 01/22/2023]
Abstract
BACKGROUND It is important to know the mechanisms underlying pain abnormalities associated with inferior alveolar nerve (IAN) regeneration in order to develop the appropriate treatment for orofacial neuropathic pain patients. However, peripheral mechanisms underlying orofacial pain abnormalities following IAN regeneration are not fully understood. METHODS Head withdrawal threshold (HWT), jaw opening reflex (JOR) thresholds, single-fibre recordings of the regenerated mental nerve (MN) fibres, calcitonin gene-related peptide (CGRP), isolectin B4 (IB4), peripherin, neurofilament-200 (NF-200) and transient receptor potential vanilloid 1 (TRPV1) expression in trigeminal ganglion (TG) cells, and electron microscopic (EM) observations of the regenerated MN fibres were studied in MN- and IAN-transected (M-IANX) rats. RESULTS HWT to mechanical or heat stimulation of the mental skin was significantly lower in M-IANX rats compared with sham rats. Mean conduction velocity of action potentials recorded from MN fibres (n = 124) was significantly slower in M-IANX rats compared with sham rats. The percentage of Fluoro-Gold (FG)-labelled CGRP-, peripherin- or TRPV1-immunoreactive (IR) cells was significantly larger in M-IANX rats compared with that of sham rats, whereas that of FG-labelled IB4- and NF-200-IR cells was significantly smaller in M-IANX rats compared with sham rats. Large-sized myelinated nerve fibres were rarely observed in M-IANX rats, whereas large-sized unmyelinated nerve fibres were frequently observed and were aggregated in the bundles at the distal portion of regenerated axons. CONCLUSIONS These findings suggest that the demyelination of MN fibres following regeneration may be involved in peripheral sensitization, resulting in the orofacial neuropathic pain associated with trigeminal nerve injury.
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