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Time course and localization of nerve growth factor expression and sensory nerve growth during progression of knee osteoarthritis in rats. Osteoarthritis Cartilage 2022; 30:1344-1355. [PMID: 35843479 DOI: 10.1016/j.joca.2022.07.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 07/04/2022] [Accepted: 07/07/2022] [Indexed: 02/02/2023]
Abstract
OBJECTIVES Nerve growth factor (NGF) and sensory nerves are key factors in established osteoarthritis (OA) knee pain. We investigated the time course of NGF expression and sensory nerve growth across early and late stages of OA progression in rat knees. DESIGN Knee OA was induced by medial meniscectomy in rats. OA histopathology, NGF expression, and calcitonin gene-related peptide immunoreactive (CGRP-IR) nerves were quantified pre-surgery and post-surgery at weeks 1, 2, 4 and 6. Pain-related behavior was evaluated using dynamic weight distribution and mechanical sensitivity of the hind paw. RESULTS NGF expression in chondrocytes increased from week 1 and remained elevated until the advanced stage. In synovium, NGF expression increased only in early stages, whereas in osteochondral channels and bone marrow, NGF expression increased in the later stages of OA progression. CGRP-IR nerve density in suprapatellar pouch peaked at week 4 and decreased at week 6, whereas in osteochondral channels and bone marrow, CGRP-IR innervation increased through week 6. Percent ipsilateral weight-bearing decreased throughout the OA time course, whereas reduced paw withdrawal thresholds were observed only in later stages. CONCLUSION During progression of knee OA, time-dependent alterations of NGF expression and CGRP-IR sensory innervation are knee tissue specific. NGF expression increased in early stages and decreased in advanced stage in the synovium but continued to increase in osteochondral channels and bone marrow. Increases in CGRP- IR sensory innervation followed increases in NGF expression, implicating that NGF is a key driver of articular nerve growth associated with OA pain.
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990P Osimertinib for RT-naïve CNS metastasis of EGFR mutation-positive NSCLC: Phase II OCEAN study (LOGIK 1603/WJOG 9116L), part of the first-line cohort. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Retraction: Chloroplast proteotoxic stress-induced autophagy is involved in the degradation of chloroplast proteins in Chlamydomonas reinhardtii. PLANT & CELL PHYSIOLOGY 2021; 62:741. [PMID: 33951175 DOI: 10.1093/pcp/pcab055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
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Abstract
Objective It has been established that stroke occurrence is influenced by seasonality. Stroke is divided into three subtypes: cerebral hemorrhage (CH), cerebral infarction (CI), and subarachnoid hemorrhage (SAH). The purpose of this paper was to analyze stroke events by subtype and month, in order to clarify the biggest factors that affect seasonal differences and thereby gain insight into stroke prevention. Methods Initial stroke events in the Akita Stroke Registry from 1991 to 2010 (58,684 cases; male 30,549, female 28,135) were classified by subtype and the month of onset, and correlations were estimated based on 115 healthy volunteers' monthly mean resting blood pressure (BP) at home and outdoor temperature measured by the Akita Meteorological Observatory in 2001. Results Systolic BP showed monthly variation in both morning and evening measurements. BP and outdoor temperature showed significant correlations with hemorrhagic stroke events by month (CH: r=0.87, r=-0.82; SAH: r=0.68, r=-0.82). Among the stroke subtypes, seasonal differences were the greatest in CH. Systolic BP was the most important factor for monthly and seasonal variation in stroke events. By comparing monthly BP variations with CH incidence throughout the year, we concluded that a decrease in home BP of 5 mmHg can reduce the risk of CH by 35%. Conclusion Our findings suggest that lowering BP would be the best strategy for CH prevention. Simple daily actions may be affected by cold stress. As physicians, we must strive to help patients lower their BP throughout the year not only with medication but with lifestyle guidance, especially in winter.
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Successful treatment of severe blepharitis in a patient with atopic dermatitis by topical delgocitinib. Clin Exp Dermatol 2021; 46:1119-1120. [PMID: 33760267 DOI: 10.1111/ced.14651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/16/2021] [Indexed: 10/21/2022]
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P72.03 Tumor Microenvironment Disparity in Multiple Primary Lung Cancers. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1021] [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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Impact of Tongue Pressure and Peak Expiratory Flow Rate on Nutritional Status of Older Residents of Nursing Homes in Japan: A Cross-Sectional Study. J Nutr Health Aging 2020; 24:512-517. [PMID: 32346690 DOI: 10.1007/s12603-020-1347-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVES Swallowing function is critical for continuing oral feeding to prevent frailty in older adults. In this study, we investigated the impact of tongue pressure and pulmonary function on the nutritional status of older adults. DESIGN, SETTING, PARTICIPANTS This cross-sectional study was conducted in Kitakyushu, Japan from August 2017 to November 2018. Fifty-two residents aged >65 years of age from three nursing care insurance facilities in Kitakyushu City, Japan were recruited. MEASUREMENTS Oral health status, swallowing function, nutritional status using a mini nutritional assessment short form (MNA-SF), cognitive function, activities of daily living, peak expiratory flow rate (PEFR) for pulmonary function, and tongue pressure were assessed. The associations between nutritional status and the above factors were analysed using a logistic regression model. RESULTS Participants were divided into two groups: well-nourished group (MNA-SF ≤12) and undernutrition group (MNA-SF <12). Multivariate logistic regression analysis revealed that the correlations of PEFR [odds ratio (OR) = 0.23, 95% confidence interval (CI) = 0.23-0.89 p=0.033) and tongue pressure (OR = 0.88, 95% CI = 0.88-0.99, p=0.029) remained significant even after adjustment with possible confounders. CONCLUSION Maximum tongue pressure and PEFR in older adults were significantly associated with their nutritional status. These findings suggest that maintaining oral and pulmonary function may be a preventive factor against a decrease in the nutritional status of older frail adults.
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[Wilson's disease presenting as Asperger syndrome]. Rinsho Shinkeigaku 2019; 59:589-591. [PMID: 31474638 DOI: 10.5692/clinicalneurol.cn-001245] [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] [Indexed: 06/10/2023]
Abstract
A 24-year-old man, who had been treated for 3 years as Asperger syndrome in adolescence due to behavioral disturbances, lack of social awareness and inability to socialize, was referred to our hospital shortly after tremors developed. On the basis of clinical features, laboratory findings and the brain MRI, a diagnosis of Wilson's disease (WD) was made. WD was further confirmed by genetic testing (the mutation of ATP7B gene). He was started with trientine hydrochloride 500 mg/day, and after 1 year of follow-up, his psychiatric symptoms have improved. Since psychiatric symptoms may precede the neurological symptoms, the possibility of WD should be always considered in the differential diagnosis of psychiatric disorders in young adults.
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Reply to “The electroencephalogram in syncope”. J Gen Fam Med 2018; 19:227. [PMID: 30464875 PMCID: PMC6238231 DOI: 10.1002/jgf2.217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 09/23/2018] [Accepted: 10/02/2018] [Indexed: 11/25/2022] Open
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Impact of medial versus lateral knee pain on deep tissue hyperalgesia and muscle strength. Eur J Pain 2018; 22:1757-1766. [PMID: 29934985 DOI: 10.1002/ejp.1271] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/20/2018] [Indexed: 12/20/2022]
Abstract
BACKGROUND Accumulating evidence indicates that knee pain gives rise to sensory and motor alterations, however, whether different profile of knee pain causes different alterations has not been investigated. The purpose of this experimental study is to clarify characteristics of medial and lateral knee pain and its potential for modulating sensory and motor function in humans. METHODS Fourteen healthy men were included. Medial knee pain (MP) was induced by injection of hypertonic saline (0.5 mL) into the tibial insertion of the medial collateral ligament. For comparison, lateral knee pain (LP) was induced by injection of hypertonic saline identically into the iliotibial tract. Isotonic saline was injected contralaterally as control. Pain intensity was assessed on a continuous electronic visual analogue scale (VAS). Before, during and after the painful state, pressure pain thresholds from the knee (PPTs), maximal isometric muscle strength of the quadriceps and grip power were assessed bilaterally. RESULTS MP demonstrated significantly higher VAS scores than LP and compared with control. PPTs decreased on medial and lateral knee in MP but only on the lateral knee in LP. Quadriceps muscle strength and grip power reduced bilaterally in both models, however, MP caused significantly greater reduction of ipsilateral quadriceps strength compared with LP. CONCLUSION Medial knee pain has a greater impact on deep tissue hyperalgesia and reduction of the muscle strength compared with lateral knee pain. This is a novel finding that should be taken into consideration in a treatment strategy for painful knee patients. SIGNIFICANCE The experimental medial knee pain model demonstrated higher pain intensity, more localized pain distribution, widespread deep tissue hyperalgesia and more severe inhibition of muscle strength compared with the lateral knee pain model.
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Convulsive syncope on electroencephalogram. J Gen Fam Med 2018; 19:109-110. [PMID: 29744265 PMCID: PMC5931353 DOI: 10.1002/jgf2.165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Accepted: 02/12/2018] [Indexed: 11/08/2022] Open
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Necrotizing enterocolitis associated with Clostridium butyricum in a Japanese man. Acute Med Surg 2018; 5:194-198. [PMID: 29657735 PMCID: PMC5891105 DOI: 10.1002/ams2.329] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 12/25/2017] [Indexed: 02/03/2023] Open
Abstract
Case Necrotizing enterocolitis (NEC) caused by Clostridium butyricum is common in neonates; however, a case of NEC in adults has not been previously reported. An 84‐year‐old Japanese man developed C. butyricum‐related NEC during hospitalization for treatment of stab wounds to the left side of the neck and lower abdomen, without organ damage, and concomitant pneumonia. Outcome The patient developed acute onset of emesis accompanied by shock during his admission; partial resection of the small intestine was carried out due to necrosis. Pathologic findings showed mucosal necrosis and extensive vacuolation with gram‐positive rods in the necrotic small intestine. Blood culture tests revealed C. butyricum infection. The patient's condition improved after the surgery. He was moved to a rehabilitation hospital on day 66. Conclusion This study suggests that hospitalized adult patients who receive antibiotic treatment are at risk for NEC.
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Fatal necrotizing myositis from fulminant Streptococcus dysgalactiae subspecies equisimilis (SDSE) infection: A case report of autopsy images. J Gen Fam Med 2018; 19:50-52. [PMID: 29600128 PMCID: PMC5867076 DOI: 10.1002/jgf2.154] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 12/18/2017] [Indexed: 11/07/2022] Open
Abstract
Over the past few decades, Streptococcus dysgalactiae subspecies equisimilis (SDSE) have been considered as weak pathogenicity compared with S. pyogenes (GAS). Some recent reports argue that SDSE may bring severe soft tissue infection as same as GAS. No reports have been tried to reveal the clinical characteristics and autopsy images of fulminant SDSE infection. In this case report, we aimed to present a case of fatal necrotizing myositis from fulminant SDSE infection at iliopsoas, including autopsy appearance.
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The cerebral blood flow dynamism depending on antiparkinson drug. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2046] [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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Spect findings in Parkinsonian patients: A clinical indicator of antiparkinsonian drug efficacy. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2687] [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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The relationship of autonomic function with severity and clinical outcome in stroke patients ₋ analysis of light reaction by electronic pupillometer. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3656] [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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Experimental pain in the groin may refer into the lower abdomen: Implications to clinical assessments. J Sci Med Sport 2017; 20:904-909. [DOI: 10.1016/j.jsams.2017.04.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 02/14/2017] [Accepted: 04/16/2017] [Indexed: 11/27/2022]
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The association of clinical features and cerebral blood flow in Parkinson’s disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2706] [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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The nationwide cancer genome screening project in Japan SCRUM-Japan GI-SCREEN: Efficient identification of cancer genome alterations in advanced pancreatic cancer. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx363.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Endoscopic photodynamic therapy using talaporfin sodium for recurrent intranasal carcinomas after radiotherapy in three dogs. J Small Anim Pract 2017; 59:128-132. [PMID: 28369945 DOI: 10.1111/jsap.12667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 04/22/2016] [Accepted: 04/26/2016] [Indexed: 11/28/2022]
Abstract
Radiation is the treatment of choice for canine nasal tumours but, in almost all cases, there is local recurrence associated with poor prognosis. This report describes the effect of endoscopic photodynamic therapy using talaporfin sodium for canine intranasal carcinoma recurring after radiation therapy. Rhinoscopic photodynamic therapy was administered after radiation therapy in three dogs with recurrent intranasal carcinoma. Two to 24 illuminations of a 665-nm diode laser were performed two hours after intravenous bolus injection of 5·0 mg/kg of talaporfin sodium. Photodynamic therapy induced almost complete remission and prolonged survival time in all cases suggesting that it might be a useful treatment for intranasal carcinomas that recur after radiation.
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Posterior teeth occlusion and dysphagia risk in older nursing home residents: a cross-sectional observational study. J Oral Rehabil 2017; 44:89-95. [DOI: 10.1111/joor.12472] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/08/2016] [Indexed: 11/29/2022]
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Effects of oral care with tongue cleaning on coughing ability in geriatric care facilities: a randomised controlled trial. J Oral Rehabil 2016; 43:953-959. [DOI: 10.1111/joor.12451] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/12/2016] [Indexed: 02/02/2023]
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User-independent assessment of conditioning pain modulation by cuff pressure algometry. Eur J Pain 2016; 21:552-561. [PMID: 27859944 DOI: 10.1002/ejp.958] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/04/2016] [Indexed: 01/04/2023]
Abstract
BACKGROUND The use of conditioning pain modulation (CPM) is hampered by poor reproducibility and lack of user-independent paradigms. This study refined the CPM paradigm by applying user-independent cuff algometry. METHODS In 20 subjects, the CPM effect of conditioning with cuff stimulation on the arm was investigated by pain test stimuli on the contralateral leg before and in parallel with different cuff conditionings (10, 30, 60 kPa/60 s; 30, 60 kPa/10 s). As test stimulus, another cuff was inflated (1 kPa/s) until the subjects detected the pain tolerance threshold (PTT) during which the pain detection threshold (PDT) and the pressure at a pain intensity of 6 cm on a 10-cm visual analogue scale (PVAS6) were extracted. For comparison, pressure pain thresholds (PPTs) as test stimuli were recorded by the user-dependent handheld pressure algometry. Combinations of cuff locations for conditioning (pain intensity standardized) and contralateral test stimuli were additionally evaluated (leg-arm, leg-leg, arm-thigh). The test-retest reliability in two sessions 1 month apart was assessed in five CPM protocols. RESULTS In all protocols, the PDT, PVAS6 and PTT increased during conditioning compared with baseline (p < 0.05). The CPM effect (i.e. conditioning minus baseline) for PVAS6, PTT and PPT increased for increasing conditioning intensities (p < 0.05). The CPM effects were not significantly different for changes in conditioning durations or conditioning/test stimulus locations. In two sessions, the CPM effects for PVAS6 and PTT assessed after 60 s of conditioning on the leg/thigh showed the highest intra-class correlations (0.47-0.73), where they were 0.04-0.6 for PPTs. CONCLUSIONS The user-independent cuff algometry is reliable for CPM assessment and for supra-pain threshold test stimuli better than the user-dependent technology. SIGNIFICANCE A user-independent CPM technique where the conditioning is controlled by one cuff stimulation, and the test-stimulus is provided by another cuff stimulation. This study shows that cuff algometry is reliable for CPM assessment.
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Resisted adduction in hip neutral is a superior provocation test to assess adductor longus pain: An experimental pain study. Scand J Med Sci Sports 2015; 26:967-74. [DOI: 10.1111/sms.12529] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/26/2015] [Indexed: 11/28/2022]
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THU0190 The Prediction Model for Methotrexate Efficacy Consisting of 9 SNPS Selected by Dmet Microarray Profiling in Japanese RA Patients. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Impacts of family support on the rehabilitation outcome of stroke inpatients at rehabilitation hospitals in Japan—a multi-center study. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.3480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Mechanism of action of newly developed vitamin D analogue. CONTRIBUTIONS TO NEPHROLOGY 2015; 91:146-8. [PMID: 1666031 DOI: 10.1159/000420171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
26,27-F6-1,25(OH)2D3 has a higher potency both in vivo and in vitro systems, and longer duration of action in vivo, instead of almost equal binding to 1,25(OH)2D3 receptor and comparatively short serum half-life. To date, the mechanism of higher action is not known, but using these analogues as a mirror we might be able to elucidate the mechanism of action or the metabolism of the kidney hormone, 1,25(OH)2D3.
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Effects of intra‐articular hyaluronic acid injection on immunohistochemical characterization of joint afferents in a rat model of knee osteoarthritis. Eur J Pain 2015; 19:334-40. [DOI: 10.1002/ejp.551] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/27/2014] [Indexed: 12/11/2022]
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Constipation is not associated with colonic diverticula: a multicenter study in Japan. Neurogastroenterol Motil 2015; 27:333-8. [PMID: 25469640 DOI: 10.1111/nmo.12478] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Accepted: 11/01/2014] [Indexed: 01/06/2023]
Abstract
BACKGROUND The association of diverticula with bowel habits is unclear. We therefore analyzed the association between diverticula and bowel habits in over 1000 Japanese individuals. METHODS Japanese subjects who underwent total colonoscopies at seven centers in Japan from June to September 2013 were analyzed. Bowel habits were evaluated using the Gastrointestinal Symptom Rating Scale, and stool form was assessed using a part of the Bristol Scale and Rome ΙΙΙ criteria. Diverticula were diagnosed by colonoscopy with a transparent soft-short hood. KEY RESULTS The study evaluated 1066 subjects, 648 males and 418 females (ratio, 1.55 : 1), of mean age 63.9 ± 13.0 years. After adjusting for age and sex, the presence of constipation was associated with a significantly reduced likelihood of diverticula (odds ratio [OR] = 0.70, 95% confidence interval [CI] 0.52-0.93). When assessed according to the location of diverticula, the presence of constipation was associated with a significantly decreased likelihood of left-sided (OR = 0.39, 95% CI 0.16-0.93), but not right-sided (OR = 1.10, 95% CI 0.48-2.53), diverticula. Furthermore, stool form was unrelated with the presence or absence of diverticula. CONCLUSIONS & INFERENCES The wide-spread hypothesis that constipation was associated with colonic diverticula was not supported. Rather, we found that the absence of diverticula was associated with constipation, suggesting the need to reassess the etiology of colonic diverticula.
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Repeated intra-articular injections of acidic saline produce long-lasting joint pain and widespread hyperalgesia. Eur J Pain 2014; 19:629-38. [PMID: 25158678 DOI: 10.1002/ejp.584] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/24/2014] [Indexed: 11/08/2022]
Abstract
BACKGROUND Synovial fluid in inflamed joint shows a drop in pH, which activates proton-gated ion channels in nociceptors. No studies have ever tried to develop and characterize acid-induced joint pain. METHODS Rats were injected intra-articularly with pH 4.0 acidic saline twice, 5 days apart. Pain-related behaviour tests including weight-bearing asymmetry, paw withdrawal threshold and knee compression threshold were conducted. To clarify the roles of proton-gated ion channels, rats were injected intra-articularly with selective antagonists for ASIC1a, ASIC3 and TRPV1 on day 5 (before the second injection) or on day 14. Underlying peripheral and central pain mechanisms were evaluated using joint histology, interleukin-1β concentrations in the synovium, single-fibre recording of the knee afferent and expression of phosphorylated cyclic adenosine monophosphate-responsive element-binding protein (p-CREB) in the spinal dorsal horn. RESULTS Repeated injections of acidic saline induced weight-bearing asymmetry, decrease in paw withdrawal threshold and knee compression threshold bilaterally, which lasted until day 28. Early administration of ASIC3 antagonist reduced the bilateral and long-lasting hyperalgesia. Neither articular degeneration nor synovial inflammation was observed. C-fibre of the knee afferent was activated by acidic saline, which was attenuated by pre-injection of ASIC3 antagonist. p-CREB expression was transiently up-regulated bilaterally on day 6, but not on day 14. CONCLUSION We developed and characterized a model of acid-induced long-lasting bilateral joint pain. Peripheral ASIC3 and spinal p-CREB played important roles for the development of hyperalgesia. This animal model gives insights into the mechanisms of joint pain, which is helpful in developing better pain treatments.
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The incidence of hemorrhagic stroke in Japan is twice compared with western countries: the Akita stroke registry. Neurol Sci 2014; 36:155-60. [DOI: 10.1007/s10072-014-1917-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 08/04/2014] [Indexed: 10/24/2022]
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Effects of Janus kinase inhibitor tofacitinib on circulating serum amyloid A and interleukin-6 during treatment for rheumatoid arthritis. Clin Exp Immunol 2014; 175:208-14. [PMID: 24665995 DOI: 10.1111/cei.12234] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/31/2013] [Indexed: 12/18/2022] Open
Abstract
The Janus kinase inhibitor tofacitinib is currently being investigated as a disease-modifying agent in rheumatoid arthritis (RA). We investigated the in-vivo effects of tofacitinib treatment for 4 weeks on elevated circulating acute-phase serum amyloid (SAA) levels in 14 Japanese patients with RA. SAA levels fell from 110·5 ± 118·5 μg/ml (mean ± standard deviation) at treatment initiation to 15·3 ± 13·3 μg/ml after 4 weeks treatment with tofacitinib. The reduction in SAA levels was greater in patients receiving tofacitinib plus methotrexate compared with those receiving tofacitinib monotherapy. Tofacitinib was also associated with reduced serum interleukin (IL)-6, but had no effect on serum levels of soluble IL-6 receptor. Patients were divided into groups with adequate (normalization) and inadequate SAA responses (without normalization). Serum IL-6 levels were reduced more in the group with adequate SAA response compared with those with inadequate SAA response. These results suggest that tofacitinib down-regulates the proinflammatory cytokine, IL-6, accompanied by reduced serum SAA levels in patients with active RA. The ability to regulate elevated serum IL-6 and SAA levels may explain the anti-inflammatory activity of tofacitinib.
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Inhibition of Janus kinase/signal transducer and activator of transcription (JAK/STAT) signalling pathway in rheumatoid synovial fibroblasts using small molecule compounds. Clin Exp Immunol 2014; 174:356-63. [PMID: 23968543 DOI: 10.1111/cei.12190] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/16/2013] [Indexed: 12/15/2022] Open
Abstract
Janus kinase (JAK) inhibitors have been developed as anti-inflammatory agents and have demonstrated clinical efficacy in rheumatoid arthritis (RA). We investigated if JAK-3-selective inhibition alone could disrupt cytokine signalling in rheumatoid synovial fibroblasts. In-vitro studies were performed using synovial fibroblasts isolated from patients with RA. Levels of activated JAK and signal transducer and activator of transcription (STAT) proteins were detected by immunoblot analysis. Target-gene expression levels were measured by reverse transcription-polymerase chain reaction (RT-PCR) or real-time PCR. The JAK inhibitors CP-690,550 and INCB028050 both suppressed activation of JAK-1/-2/-3 and downstream STAT-1/-3/-5, as well as the expression levels of target proinflammatory genes (MCP-I, SAA1/2) in oncostatin-M (OSM)-stimulated rheumatoid synovial fibroblasts. In contrast, the JAK-3-selective inhibitor, PF-956980, suppressed STAT-1/-5 activation but did not affect STAT-3 activation in OSM-stimulated rheumatoid synovial fibroblasts. In addition, PF-956980 significantly suppressed MCP-1 gene expression, but did not block SAA1/2 gene expression in OSM-stimulated rheumatoid synovial fibroblasts. These data suggest that JAK-3-selective inhibition alone is insufficient to control STAT-3-dependent signalling in rheumatoid synovial fibroblasts, and inhibition of JAKs, including JAK-1/-2, is needed to control the proinflammatory cascade in RA.
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Nociceptive phenotype of dorsal root ganglia neurons innervating the subchondral bone in rat knee joints. Eur J Pain 2013; 18:174-81. [DOI: 10.1002/j.1532-2149.2013.00360.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/02/2013] [Indexed: 11/10/2022]
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Alcohol is a risk factor not for thalamic but for putaminal hemorrhage: the Akita Stroke Registry. J Stroke Cerebrovasc Dis 2012; 22:1064-9. [PMID: 22939201 DOI: 10.1016/j.jstrokecerebrovasdis.2012.07.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2012] [Revised: 07/08/2012] [Accepted: 07/09/2012] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Although the risk factors of cerebral hemorrhage were established long ago, there is little agreement as to the risk factors for the site of cerebral hemorrhage. METHODS We obtained mass health screening data collected between 1990 and 2000 regarding 151,796 subjects from the Akita Prefectural Federation of Agricultural Cooperative for Health and Welfare. A first-ever cerebral hemorrhage occurring <3 years after the screening examination was defined as an event. Stroke events were determined from the Akita stroke registry between 1990 and 2003. Clinical risk factors for stroke, such as age, blood pressure, severe obesity (body mass index >30 kg/m(2)), low serum total cholesterol, hepatic disorder, renal disorder, and drinking habits were then assessed. RESULTS Cerebral hemorrhage developed in 344 cases in the study population. The distribution of subtypes (putaminal hemorrhage [PH], thalamic hemorrhage [TH], and subcortical hemorrhage [SH]) were 122 cases (35.5%), 110 cases (32.0%), and 44 cases (12.8%), respectively. We evaluated the risk factors by multiple logistic regression analysis among these 3 groups. Age was a significant risk factor among these 3 groups, but blood pressure was not a risk factor in SH. Low serum cholesterol and drinking habits were significant risk factors only in PH. Hepatic disorder was a strong risk factor in PH and a weak risk factor in TH. Interestingly, a drinking habit was a significant risk factor only in PH. CONCLUSIONS Drinking habits had been a risk factor for cerebral hemorrhage, but it was a risk factor not for PH and not for TH or SH.
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The impact of childhood abuse history, domestic violence and mental health symptoms on parenting behaviour among mothers in Japan. Child Care Health Dev 2012; 38:530-7. [PMID: 21696427 DOI: 10.1111/j.1365-2214.2011.01272.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND To assess the impact of childhood abuse history, domestic violence experiences and mental health symptoms on the parenting behaviour of mothers in Japan who have separated from violent husbands or partners. METHODS A self-administered questionnaire survey was conducted on a sample of mothers (n = 304) and their children (n = 498) residing in 83 mother-child homes in Japan. The survey assessed the mothers' childhood abuse history (physical, psychological and sexual abuse and neglect history), domestic violence experiences, current mental health symptoms (dissociative, depressive and traumatic symptoms) and parenting behaviours after moving into the homes to separate from a violent husband or partner. RESULTS The mothers' childhood abuse history and experience of domestic violence were not associated with their not playing with their children. In contrast, the mothers' dissociative and depressive symptoms were significantly associated with not playing with their children. Although there was no association between the mothers' total childhood abuse history and not praising their children, their childhood physical abuse history was significantly associated with their not praising their children. The dissociative and depressive symptoms were also associated with no praise. Interestingly, the experience of domestic violence showed an inverse association with no praise. CONCLUSIONS Mental health symptoms, more specifically dissociative and depressive symptoms, are associated with a decrease in parenting quality. Mothers who were physically abused as children are less likely to praise their own children, independent of maternal mental health symptoms. In contrast, mothers who experienced domestic violence but subsequently separated from their violent husbands or partners are more likely to praise their children. The treatment of mental health symptoms, particularly dissociative and depressive symptoms, therapy for childhood abuse history and separation from violent husbands or partners might be effective ways to enhance the quality of parenting in Japan.
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Molecular characterization of heterochromatin proteins 1a and 1b from the silkworm, Bombyx mori. INSECT MOLECULAR BIOLOGY 2012; 21:9-20. [PMID: 22142192 DOI: 10.1111/j.1365-2583.2011.01115.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Heterochromatin protein 1s (HP1s) are nonhistone chromosomal proteins that play a direct role in the formation and maintenance of heterochromatin structure. Similarly to Caenorhabditis elegans, silkworms possess holocentric chromosomes, in which diffused kinetochores extend along the length of each chromosome. We have isolated two silkworm HP1 homologues, BmHP1a and BmHP1b. Cytological analysis showed a unique localization of BmHP1s during cell division, in which these proteins first appear to dissociate from the chromosomes, but then return to enclose the chromosomes during metaphase. BmHP1s formed homo- and hetero-dimers and interacted with BmSu(var)3-9, which is a methyltransferase for histone H3 lysine 9 (H3K9). We further showed, using a silkworm cell-based reporter system, that BmHP1b had higher transcriptional repression activity than BmHP1a, whereas BmHP1a interacted more strongly with BmSu(var)3-9 than did BmHP1b. These results suggest that silkworm HP1a and HP1b may play different roles in heterochromatin formation in holocentric silkworm chromosomes.
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Successful management of aortic thrombi resulting in spinal cord infarction in a patient with antiphospholipid antibody syndrome and acute cholecystitis. Int Med Case Rep J 2011; 4:93-6. [PMID: 23754914 PMCID: PMC3658312 DOI: 10.2147/imcrj.s26618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
A 74-year-old man with coronary artery disease was suffering from acute nonobstructive cholecystitis and was admitted to a nearby hospital. Dual antiplatelet (aspirin and ticlopidine) therapy was discontinued before preparation for surgical resection of the gall bladder. During his time in hospital he was aware of lumbar pain and weakness in both legs. He was transferred to our hospital for further evaluation and therapy. Diffuse intra-aortic thrombi were revealed by computed tomography with contrast media, and magnetic resonance imaging showed spinal cord infarction. However, computed tomography scans of the descending aorta obtained 4 months before admission exhibited no signs of atherosclerotic plaques or intra-aortic thrombi. Laboratory data suggest that antiphospholipid antibody syndrome might have caused these acute multiple intra-arterial thrombi. By restarting dual antiplatelet therapy and increasing the dose of heparin (from 10,000 IU/day to 15,000 IU/day) we successfully managed the patient's clinical condition and symptoms. It is important to understand that stopping antiplatelet therapy may rapidly grow thrombi in patients with a hypercoagulative state.
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Advantages and limitations of antihypertensive treatment for stroke risk in a general population: the Akita Stroke Registry. Acta Cardiol 2011; 66:729-35. [PMID: 22299383 DOI: 10.1080/ac.66.6.2136956] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND Although the association between stroke risk and blood pressure (BP) levels related to antihypertensive medication has been an object of study for a long time, there is little agreement as to the relationship in a general population study. METHODS AND RESULTS We obtained mass health screening data regarding 156,847 (142,989 untreated and 13,858 treated) subjects from the Akita Prefectural Federation of Agricultural Cooperative for Health and Welfare from 1991 to 1998. Stroke events were determined from the Akita stroke registry between 1991 and 2001. A Poisson regression model, adjusting for possible confounding factors, was used to investigate the risk of first stroke among six BP-based categories (BP defined according to JNC-6), with or without antihypertensive medication. Stroke developed in 1,323 (0.8%) individuals in the study population within 3 years after the health examination. Among untreated groups, the relative hazard linearly increased with elevation of the BP grade. In the untreated group, stroke risk was significantly higher (relative hazard 2.1, 95% confidence interval (CI) 1.6-2.7) in the subjects with high-normal BP levels than with optimal BP levels. In the treated group, stroke risk was significantly higher in patients with high-normal BP levels (relative hazard 2.0, 95% CI 1.0-4.2) than with optimal BP levels. Furthermore, stroke risk was significantly higher in the treated groups with normal BP levels (relative hazard 3.1, 95% CI 2.0-4.9) compared with the untreated group with optimal BP levels. CONCLUSIONS Although antihypertensive medication can reduce stroke risk, treated patients within non-hypertension levels may still have a higher risk compared with untreated subjects of the same categories.
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Successful treatment of wound breakdown caused by pyoderma gangrenosum after total knee arthroplasty. Knee 2011; 18:453-5. [PMID: 20643552 DOI: 10.1016/j.knee.2010.06.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2010] [Revised: 06/18/2010] [Accepted: 06/22/2010] [Indexed: 02/02/2023]
Abstract
Pyoderma gangrenosum is a rare ulcerative disorder of the skin of unknown etiology. We present a case of pyoderma gangrenosum that occurred following total knee arthroplasty, which was initially misdiagnosed as severe wound infection. Repeated debridement procedures resulted in a large soft tissue defect around the anterior knee joint. The patient was treated successfully with a latissimus dorsi musculocutaneous flap under immunosuppressive therapy. Pyoderma gangrenosum is often misdiagnosed as an infected wound, but the treatment for theses differential diagnoses is completely different. When a lesion is refractory to thorough treatment for infection, a diagnosis of pyoderma gangrenosum should be considered.
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Prospective multicentre cohort study of heparin-induced thrombocytopenia in acute ischaemic stroke patients. Br J Haematol 2011; 154:378-86. [PMID: 21671895 PMCID: PMC3170484 DOI: 10.1111/j.1365-2141.2011.08775.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Acute ischaemic stroke patients sometimes receive heparin for treatment and/or prophylaxis of thromboembolic complications. This study was designed to elucidate the incidence and clinical features of heparin-induced thrombocytopenia (HIT) in acute stroke patients treated with heparin. We conducted a prospective multicentre cohort study of 267 patients who were admitted to three stroke centres within 7 d after stroke onset. We examined clinical data until discharge and collected blood samples on days 1 and 14 of hospitalization to test anti-platelet factor 4/heparin antibodies (anti-PF4/H Abs) using an enzyme-linked immunosorbent assay (ELISA); platelet-activating antibodies were identified by serotonin-release assay (SRA). Patients with a 4Ts score ≥4 points, positive-ELISA, and positive-SRA were diagnosed as definite HIT. Heparin was administered to 172 patients (64·4%: heparin group). Anti-PF4/H Abs were detected by ELISA in 22 cases (12·8%) in the heparin group. Seven patients had 4Ts ≥ 4 points. Among them, three patients (1·7% overall) were also positive by both ELISA and SRA. National Institutes of Health Stroke Scale score on admission was high (range, 16–23) and in-hospital mortality was very high (66·7%) in definite HIT patients. In this study, the incidence of definite HIT in acute ischaemic stroke patients treated with heparin was 1·7% (95% confidence interval: 0·4–5·0). The clinical severity and outcome of definite HIT were unfavourable.
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Imaging features contributing to the diagnosis of ameloblastomas and keratocystic odontogenic tumours: logistic regression analysis. Dentomaxillofac Radiol 2011; 40:133-40. [PMID: 21346078 DOI: 10.1259/dmfr/24726112] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
OBJECTIVE The aim of this study was to clarify the characteristic imaging features that can be used to differentiate ameloblastomas from keratocystic odontogenic tumours and to examine the significant imaging features contributing to a correct diagnosis. METHODS 60 observers (39 specialists in oral and maxillofacial radiology and 21 non-specialists) examined CT and/or panoramic images of 10 ameloblastomas and 10 keratocystic odontogenic tumours shown on a webpage and made diagnoses. Their correct answer ratios were then calculated. The imaging features of the tumours were evaluated and expressed as binary numbers or quantitative values. The imaging features that contributed to a correct diagnosis were elucidated using logistic regression analysis. RESULTS The mean correct answer ratio was 61.3% ± 17.2% for the diagnosis of ameloblastomas and keratocystic odontogenic tumours. CT images produced higher correct answer ratios for diagnosis of keratocystic odontogenic tumours by specialists. The significantly different imaging features between ameloblastomas and keratocystic odontogenic tumours were the degree of bone expansion and the presence of high-density areas. The significant imaging features contributing to a correct imaging diagnosis were the number of locules, the presence of high-density areas and the inclusion of impacted teeth. CONCLUSION The presence of high-density areas is the most useful feature in the differential diagnosis of ameloblastomas and keratocystic odontogenic tumours based on comparison of the imaging features of both tumours and examination of the diagnostic contributions of these features.
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STRENGTHS AND LIMITATIONS OF ANTIHYPERTENSIVE TREATMENT FOR STROKE RISK IN A GENERAL POPULATION: THE AKITA STROKE REGISTRY. J Am Coll Cardiol 2011. [DOI: 10.1016/s0735-1097(11)60612-8] [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: 11/26/2022]
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Blood pressure and total cholesterol level are critical risks especially for hemorrhagic stroke in Akita, Japan. Cerebrovasc Dis 2010; 31:100-6. [PMID: 21079399 DOI: 10.1159/000321506] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2010] [Accepted: 09/15/2010] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND AND PURPOSE Stroke risk factors differ depending on the subtype of stroke; moreover, the distribution of risks is different among countries and races. METHODS Mass health screening data were collected from the Akita Prefectural Federation of Agricultural Cooperative for Health and Welfare from 1991 to 1998. Cerebrovascular events were determined from the Akita stroke registry from 1991 to 2001. Then, clinical risk factors for stroke, such as hypertension, hyperlipidemia and diabetes mellitus, were assessed in the different subtypes of stroke. RESULTS A total of 156,892 persons were included in this study (76,330 men and 80,562 women), and 1,323 subjects had a stroke during the 3 years of the screening period. The distribution of subtypes such as cerebral hemorrhage (CH), cerebral infarction (CI) and subarachnoid hemorrhage (SAH) was 27.3, 55.9 and 16.8%, respectively. Mean age and systolic and diastolic blood pressures (BPs) were significantly higher in stroke cases. CH and CI occurred more frequently in men, whereas SAH occurred more frequently in women. Serum total cholesterol (TC) <160 mg/dl was a risk factor for hemorrhagic stroke (CH and SAH), whereas TC >280 mg/dl increased the risk of CI. A multivariable analysis revealed that the lower TC level (<160 mg/dl) and the higher BP increased the relative risk of hemorrhagic stroke. CONCLUSIONS BP was the strongest risk factor for any subtype of stroke. High BP and low TC (<160 mg/dl) were critical risks of hemorrhagic stroke.
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The effect of horizontal X-ray beam angulation on the detection of furcation defects of mandibular first molars in intraoral radiography. Dentomaxillofac Radiol 2010; 39:85-90. [PMID: 20100919 DOI: 10.1259/dmfr/99338642] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES The aim was to investigate the effect of changes in horizontal X-ray beam angulation in intraoral radiography on the detection accuracy of furcation defects in the mandibular first molar, and to examine the anatomical relationship between the roots and furcation area as a possible cause of changes in detectability. METHODS Simulated furcation defects with various depths were created in five mandibular first molars. Intraoral radiographs were taken at various horizontal angulations of the projection beams. The diagnostic accuracies were determined based on receiver operating characteristic analysis. The geometric relationship that might influence the accuracy was investigated through use of a compact cone beam CT in 59 first molar areas. RESULTS Although the horizontal angulations showing the highest accuracies were shifted mesially, no differences were found between the angles of -10 degrees and 20 degrees . The relationship between the roots and the furcation area was relevant to the range of angulations showing high detectabilities. CONCLUSIONS The angulations traditionally used for detecting proximal caries are also suitable for detecting furcation defects.
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Prevention of Venous Stasis in the Lower Limb by Transcutaneous Electrical Nerve Stimulation. Eur J Vasc Endovasc Surg 2010; 39:642-5. [DOI: 10.1016/j.ejvs.2009.11.035] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2009] [Accepted: 11/22/2009] [Indexed: 10/20/2022]
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P1.30 Pathophysiology of hemifacial flushing and contralateral anhidrosis with crossed hypohidrosis under the chest at heating in children. Auton Neurosci 2009. [DOI: 10.1016/j.autneu.2009.05.126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Use of sonographic elastography of the masseter muscles for optimizing massage pressure: a preliminary study. J Oral Rehabil 2009; 36:627-35. [PMID: 19602100 DOI: 10.1111/j.1365-2842.2009.01977.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
To examine the stiffness of the masseter muscle using sonographic elastography and to investigate its relationship with the most comfortable massage pressure in the healthy volunteers. In 16 healthy volunteers (10 men and 6 women), the Masseter Stiffness Index (MSI) was measured using EUB-7000 real-time tissue elastography. They underwent massages at three kinds of pressures using the Oral Rehabilitation Robot (WAO-1). A subjective evaluation regarding the comfort of each massage was recorded on the visual analogue scale. Elastography was also performed in two patients with temporomandibular joint dysfunction with the myofascial pain. The mean MSI of the right and left muscles in the healthy volunteers were 0.85 +/- 0.44 and 0.74 +/- 0.35 respectively. There was no significant difference between the right and left MSI in the healthy volunteers. The MSI was related to massage pressure at which the healthy men felt most comfortable. The two temporomandibular disorder patients had a large laterality in the MSI. The MSI was related to the most comfortable massage pressure in the healthy men. The MSI can be one index for determining the massage pressure.
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