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Fukushima M, Kadowaki S, Nakatani S, Waki S, Matsumoto K, Okamoto H. Impact of endolymphatic hydrops on the function of the horizontal canal during caloric stimulation in Ménière's disease. Eur Arch Otorhinolaryngol 2024; 281:1701-1708. [PMID: 37804352 DOI: 10.1007/s00405-023-08272-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 10/02/2023] [Indexed: 10/09/2023]
Abstract
PURPOSE When a dizzy patient with episodic vertigo has an abnormal caloric and a normal video head impulse test (vHIT), this caloric-vHIT dissociation provides vital information for a diagnosis of Ménière's disease (MD). Endolymphatic hydrops (EH), a histological marker of MD, is hypothesized to be involved in the caloric-vHIT dissociation in MD through hydropic duct distension of the horizontal semicircular canal (SC). This study was designed to determine the impact of EH on the function of horizontal SC during caloric stimulation. METHODS Caloric test and vHIT were used to evaluate the function of horizontal SC every six months, annual magnetic resonance imaging (MRI) was used to evaluate the degree of EH size in the vestibule, and monthly vertigo and hearing evaluation was done for 12 months. EH shrinkage was defined as the size change of vestibular EH from significant to none. RESULTS Among 133 MD patients evaluated for eligibility, 67 patients with caloric-vHIT dissociation entered the study. Fifteen participants had EH shrinkage (G-I), while 52 participants had no remarkable EH change (G-II). Average values (IQR) of the maximum slow phase velocity in G-I and G-II were 29.6 (13.0-34.0) and 25.9 (17.3-31.3), respectively, at baseline, 26.1 (9.0-38.0) and 23.6 (18.0-28.3) at 12 months. Two-factor repeated-measures ANOVA showed no significant differences between the groups (P = 0.486). The values of vestibulo-ocular reflex gain of the horizontal SC in G-I and G-II remained above 0.8 during the study period. CONCLUSIONS EH detected by MRI shows limited correlation with caloric stimulation results.
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Affiliation(s)
- Munehisa Fukushima
- Department of Otolaryngology, Adachi Medical Center, Tokyo Women's Medical University, 4-33-1 Kohoku, Adachi-Ku, Tokyo, 123-8558, Japan.
- Department of Otolaryngology and Head and Neck Surgery, Kansai Rosai Hospital, Hyogo, Japan.
| | - Seiichi Kadowaki
- Department of Otolaryngology, Adachi Medical Center, Tokyo Women's Medical University, 4-33-1 Kohoku, Adachi-Ku, Tokyo, 123-8558, Japan
- Department of Physiology, School of Medicine, International University of Health and Welfare, Chiba, Japan
| | - Saho Nakatani
- Department of Otolaryngology and Head and Neck Surgery, Kansai Rosai Hospital, Hyogo, Japan
| | - Sadanori Waki
- Department of Otolaryngology and Head and Neck Surgery, Kansai Rosai Hospital, Hyogo, Japan
| | - Ken Matsumoto
- Department of Otolaryngology and Head and Neck Surgery, Kansai Rosai Hospital, Hyogo, Japan
| | - Hidehiko Okamoto
- Department of Physiology, School of Medicine, International University of Health and Welfare, Chiba, Japan
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Dekant R, Bertermann R, Serban J, Sharma S, Shinohara M, Morizawa Y, Okamoto H, Brock W, Dekant W, Mally A. Correction: Species-differences in the in vitro biotransformation of trifluoroethene (HFO-1123). Arch Toxicol 2024; 98:363-364. [PMID: 38057564 PMCID: PMC10761458 DOI: 10.1007/s00204-023-03640-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Affiliation(s)
- R Dekant
- Department of Toxicology, University of Würzburg, Versbacher Strasse 9, 97078, Würzburg, Germany
| | - R Bertermann
- Department of Inorganic Chemistry, University of Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - J Serban
- Department of Toxicology, University of Würzburg, Versbacher Strasse 9, 97078, Würzburg, Germany
| | - S Sharma
- Department of Toxicology, University of Würzburg, Versbacher Strasse 9, 97078, Würzburg, Germany
| | - M Shinohara
- Chemicals Company, AGC Inc, CSR Office, 1-5-1, Marunouchi, Chiyoda-ku, Tokyo, 100-8405, Japan
| | - Y Morizawa
- Chemicals Company, AGC Inc, CSR Office, 1-5-1, Marunouchi, Chiyoda-ku, Tokyo, 100-8405, Japan
| | - H Okamoto
- Chemicals Company, AGC Inc, CSR Office, 1-5-1, Marunouchi, Chiyoda-ku, Tokyo, 100-8405, Japan
| | - W Brock
- Brook Scientific Consulting LLC, Hilton Head Island, SC, USA
| | - W Dekant
- Department of Toxicology, University of Würzburg, Versbacher Strasse 9, 97078, Würzburg, Germany
| | - A Mally
- Department of Toxicology, University of Würzburg, Versbacher Strasse 9, 97078, Würzburg, Germany.
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3
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Dekant R, Bertermann R, Serban J, Sharma S, Shinohara M, Morizawa Y, Okamoto H, Brock W, Dekant W, Mally A. Species-differences in the in vitro biotransformation of trifluoroethene (HFO-1123). Arch Toxicol 2023; 97:3095-3111. [PMID: 37792044 PMCID: PMC10567879 DOI: 10.1007/s00204-023-03603-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 08/30/2023] [Indexed: 10/05/2023]
Abstract
1,1,2-Trifluoroethene (HFO-1123) is anticipated for use as a refrigerant with low global warming potential. Inhalation studies on HFO-1123 in rats indicated a low potential for toxicity (NOAELs ≥ 20,000 ppm). In contrast, single inhalation exposure of Goettingen® minipigs (≥ 500 ppm) and New Zealand white rabbits (≥ 1250 ppm) resulted in severe toxicity. It has been suggested that these pronounced species-differences in toxicity may be attributable to species-differences in biotransformation of HFO-1123 via the mercapturic acid pathway. Therefore, the overall objective of this study was to evaluate species-differences in glutathione (GSH) dependent in vitro metabolism of HFO-1123 in susceptible versus less susceptible species and humans as a basis for human risk assessment. Biotransformation of HFO-1123 to S-(1,1,2-trifluoroethyl)-L-glutathione (1123-GSH) and subsequent cysteine S-conjugate β-lyase-mediated cleavage of the corresponding cysteine conjugate (1123-CYS) was monitored in hepatic and renal subcellular fractions of mice, rats, minipigs, rabbits, and humans. While 1123-GSH formation occurred at higher rates in rat and rabbit liver S9 compared to minipig and human S9, increased β-lyase cleavage of 1123-CYS was observed in minipig kidney cytosol as compared to cytosolic fractions of other species. Increased β-lyase activity in minipig cytosol was accompanied by time-dependent formation of monofluoroacetic acid (MFA), a highly toxic compound that interferes with cellular energy production via inhibition of aconitase. Consistent with the significantly lower β-lyase activity in human cytosols, the intensity of the MFA signal in human cytosols was only a fraction of the signal obtained in minipig subcellular fractions. Even though the inconsistencies between GSH and β-lyase-dependent metabolism do not allow to draw a firm conclusion on the overall contribution of the mercapturic acid pathway to HFO-1123 biotransformation and toxicity in vivo, the β-lyase data suggest that humans may be less susceptible to HFO-1123 toxicity compared to minipigs.
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Affiliation(s)
- R Dekant
- Department of Toxicology, University of Würzburg, Versbacher Strasse 9, 97078, Würzburg, Germany
| | - R Bertermann
- Department of Inorganic Chemistry, University of Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - J Serban
- Department of Toxicology, University of Würzburg, Versbacher Strasse 9, 97078, Würzburg, Germany
| | - S Sharma
- Department of Toxicology, University of Würzburg, Versbacher Strasse 9, 97078, Würzburg, Germany
| | - M Shinohara
- Chemicals Company, AGC Inc, CSR Office, 1-5-1, Marunouchi, Chiyoda-ku, Tokyo, 100-8405, Japan
| | - Y Morizawa
- Chemicals Company, AGC Inc, CSR Office, 1-5-1, Marunouchi, Chiyoda-ku, Tokyo, 100-8405, Japan
| | - H Okamoto
- Chemicals Company, AGC Inc, CSR Office, 1-5-1, Marunouchi, Chiyoda-ku, Tokyo, 100-8405, Japan
| | - W Brock
- Brook Scientific Consulting LLC, Hilton Head Island, SC, USA
| | - W Dekant
- Department of Toxicology, University of Würzburg, Versbacher Strasse 9, 97078, Würzburg, Germany
| | - A Mally
- Department of Toxicology, University of Würzburg, Versbacher Strasse 9, 97078, Würzburg, Germany.
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Sasaki K, Kadowaki S, Iwasaki J, Pijanowska M, Okamoto H. Cognitive neural responses in the semantic comprehension of sound symbolic words and pseudowords. Front Hum Neurosci 2023; 17:1208572. [PMID: 37900724 PMCID: PMC10603230 DOI: 10.3389/fnhum.2023.1208572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 09/25/2023] [Indexed: 10/31/2023] Open
Abstract
Introduction Sound symbolism is the phenomenon of sounds having non-arbitrary meaning, and it has been demonstrated that pseudowords with sound symbolic elements have similar meaning to lexical words. It is unclear how the impression given by the sound symbolic elements is semantically processed, in contrast to lexical words with definite meanings. In event-related potential (ERP) studies, phonological mapping negativity (PMN) and N400 are often used as measures of phonological and semantic processing, respectively. Therefore, in this study, we analyze PMN and N400 to clarify the differences between existing sound symbolic words (onomatopoeia or ideophones) and pseudowords in terms of semantic and phonological processing. Methods An existing sound symbolic word and pseudowords were presented as an auditory stimulus in combination with a picture of an event, and PMN and N400 were measured while the subjects determined whether the sound stimuli and pictures match or mismatch. Results In both the existing word and pseudoword tasks, the amplitude of PMN and N400 increased when the picture of an event and the speech sound did not match. Additionally, compared to the existing words, the pseudowords elicited a greater amplitude for PMN and N400. In addition, PMN latency was delayed in the mismatch condition relative to the match condition for both existing sound symbolic words and pseudowords. Discussion We concluded that established sound symbolic words and sound symbolic pseudowords undergo similar semantic processing. This finding suggests that sound symbolism pseudowords are not judged on a simple impression level (e.g., spiky/round) or activated by other words with similar spellings (phonological structures) in the lexicon, but are judged on a similar contextual basis as actual words.
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Affiliation(s)
- Kaori Sasaki
- Department of Speech and Hearing Sciences, International University of Health and Welfare, Narita, Japan
| | - Seiichi Kadowaki
- Graduate School of Medicine, International University of Health and Welfare, Narita, Japan
| | - Junya Iwasaki
- Department of Speech and Hearing Sciences, International University of Health and Welfare, Narita, Japan
| | - Marta Pijanowska
- Office of Medical Education, International University of Health and Welfare, School of Medicine, Narita, Japan
- Graduate School of Humanities and Sociology, University of Tokyo, Tokyo, Japan
| | - Hidehiko Okamoto
- Graduate School of Medicine, International University of Health and Welfare, Narita, Japan
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5
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Kadowaki S, Morimoto T, Pijanowska M, Mori S, Okamoto H. 80 Hz auditory steady state responses (ASSR) elicited by silent gaps embedded within a broadband noise. Front Neurol 2023; 14:1221443. [PMID: 37521303 PMCID: PMC10374305 DOI: 10.3389/fneur.2023.1221443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 06/27/2023] [Indexed: 08/01/2023] Open
Abstract
Introduction Although auditory temporal processing plays an important role in speech comprehension, it cannot be measured by pure tone audiometry. Auditory temporal resolution is often assessed by behavioral gaps-in-noise test. To evaluate whether auditory temporal resolution could be objectively assessed, we measured the auditory steady state response (ASSR) elicited by silent gaps embedded within broadband noises at 80 Hz. Methods We prepared six sound types as test stimuli. One was a continuous broadband noise without a silent interval as a control stimulus and the others were broadband noises with 80 Hz silent intervals of 0.4, 0.8, 1.6, 3.1, and 6.3 ms. Results Significant ASSRs were recorded only when the gap length was longer than the behavioral thresholds and the ASSR amplitude increased as the gap length increased. Conclusion Eighty Hertz gap-evoked ASSR appears to reflect the neural activity related to the auditory gap processing and may be used as an objective measure of auditory temporal resolution in humans.
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Affiliation(s)
- Seiichi Kadowaki
- Department of Physiology, International University of Health and Welfare Graduate School of Medicine, Narita, Japan
| | - Takashi Morimoto
- Department of Audiological Engineering, RION Co., Ltd., Tokyo, Japan
| | - Marta Pijanowska
- Office of Medical Education, International University of Health and Welfare School of Medicine, Narita, Japan
- Graduate School of Humanities and Sociology, University of Tokyo, Tokyo, Japan
| | - Shuji Mori
- Department of Informatics, Graduate School of Information Science and Electrical Engineering, Kyusyu University, Fukuoka, Japan
| | - Hidehiko Okamoto
- Department of Physiology, International University of Health and Welfare Graduate School of Medicine, Narita, Japan
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Nakajima R, Hirobe D, Kawaguchi G, Nabei Y, Sato T, Narushima T, Okamoto H, Yamamoto HM. Giant spin polarization and a pair of antiparallel spins in a chiral superconductor. Nature 2023; 613:479-484. [PMID: 36653570 DOI: 10.1038/s41586-022-05589-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 11/23/2022] [Indexed: 01/20/2023]
Abstract
Chiral molecules can exhibit spin-selective charge emission, which is known as chirality-induced spin selectivity1,2. Despite the constituent light elements of the molecules, their spin polarization can approach or even exceed that of typical ferromagnets. This powerful capability may lead to applications in the chiral spintronics2 field. Although the origin of spin selectivity is elusive, two microscopic phenomena have been suggested based on experimental results: effective enhancement of spin-orbit interactions3 and chirality represented by a pair of oppositely polarized spins4,5. However, the hypotheses remain to be verified. Here we report the simultaneous observation of these two phenomena in an organic chiral superconductor by magnetoresistance measurements in the vicinity of the superconducting transition temperature. A pair of oppositely polarized spins is demonstrated by spatially mapping the spin polarity in an electric alternating current excitation. The obtained spin polarization exceeds that of the Edelstein effect6-10 by several orders of magnitude, which indicates an effective enhancement of the spin-orbit interaction. Our results demonstrate a solid-state analogue of spin accumulations assumed for chiral molecules, and may provide clues to the origin of their molecular counterparts. In addition, the innovative capability of spin-current sourcing will invigorate superconducting spintronics research11.
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Affiliation(s)
- R Nakajima
- Institute for Molecular Science, Myodaiji, Okazaki, Japan.,The Graduate University for Advanced Studies, Myodaiji, Okazaki, Japan
| | - D Hirobe
- Institute for Molecular Science, Myodaiji, Okazaki, Japan. .,The Graduate University for Advanced Studies, Myodaiji, Okazaki, Japan. .,PRESTO, Japan Science and Technology Agency, Kawaguchi, Saitama, Japan. .,Shizuoka University, Suruga, Shizuoka, Japan.
| | - G Kawaguchi
- Institute for Molecular Science, Myodaiji, Okazaki, Japan
| | - Y Nabei
- Institute for Molecular Science, Myodaiji, Okazaki, Japan.,The Graduate University for Advanced Studies, Myodaiji, Okazaki, Japan
| | - T Sato
- Institute for Molecular Science, Myodaiji, Okazaki, Japan.,The Graduate University for Advanced Studies, Myodaiji, Okazaki, Japan
| | - T Narushima
- Institute for Molecular Science, Myodaiji, Okazaki, Japan.,The Graduate University for Advanced Studies, Myodaiji, Okazaki, Japan.,Elementary and Secondary Education Bureau, Ministry of Education, Culture, Sports, Science and Technology (MEXT), Kasumigaseki, Chiyoda, Tokyo, Japan
| | - H Okamoto
- Institute for Molecular Science, Myodaiji, Okazaki, Japan.,The Graduate University for Advanced Studies, Myodaiji, Okazaki, Japan
| | - H M Yamamoto
- Institute for Molecular Science, Myodaiji, Okazaki, Japan. .,The Graduate University for Advanced Studies, Myodaiji, Okazaki, Japan.
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7
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Fukushima M, Akahani S, Okamoto H, Takeda N, Inohara H. Assessment of inner ear morphology and function in response to local positive pressure for Ménière's disease: a nonrandomized controlled trial. Sci Rep 2022; 12:20782. [PMID: 36456740 PMCID: PMC9715546 DOI: 10.1038/s41598-022-25321-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 11/28/2022] [Indexed: 12/03/2022] Open
Abstract
Ménière's disease (MD) is an inner ear disorder in which the main pathological feature is endolymphatic hydrops (EH). Positive pressure therapy (PPT) using a portable device is now a second-line therapy for intractable MD when initial medical treatment fails. However, it remains unknown whether PPT causes the morphological and functional changes of inner ear in patients with active MD in accordance with reduction of vertigo attacks. In this nonrandomized controlled trial of 52 patients with MD, the volume of EH significantly decreased with reduction of vertigo attacks during 8 months of PPT combined with medications while the volume of that significantly increased with medications alone. There was no difference between Control group (n = 26) and PPT group (n = 26) regarding the vertigo control, however, PPT group achieved a significant functional improvement of vertical semicircular canals. The effect of volume reduction by PPT has been firstly demonstrated and the functional changes of all semicircular canals during PPT have been firstly examined. Morphological and functional changes in the inner ear by administrating local positive pressure are quite different from those caused by medications alone.Clinical trial registration: UMIN-CTR UMIN000041164 (registered on July 20, 2020).
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Affiliation(s)
- Munehisa Fukushima
- grid.414976.90000 0004 0546 3696Department of Otolaryngology and Head and Neck Surgery, Kansai Rosai Hospital, 3-1-69 Inabaso, Amagasaki, Hyogo 660-8511 Japan ,grid.136593.b0000 0004 0373 3971Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Shiro Akahani
- grid.414976.90000 0004 0546 3696Department of Otolaryngology and Head and Neck Surgery, Kansai Rosai Hospital, 3-1-69 Inabaso, Amagasaki, Hyogo 660-8511 Japan
| | - Hidehiko Okamoto
- grid.411731.10000 0004 0531 3030Department of Physiology, School of Medicine, International University of Health and Welfare, Chiba, Japan
| | - Noriaki Takeda
- grid.267335.60000 0001 1092 3579Department of Otolaryngology, University of Tokushima School of Medicine, Tokushima, Japan
| | - Hidenori Inohara
- grid.136593.b0000 0004 0373 3971Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
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Okuma Y, Nomura S, Ninomiya K, Yamaguchi H, Murakami S, Kogure Y, Harada D, Okishio K, Okamoto H, Goto Y. 1186TiP EPONA, efficacy of osimertinib with platinum and pemetrexed in EGFR mutant non-small cell lung cancer patients bearing CNS metastasis, and have systemic progression but stable intracranial disease on OsimertiNib resistAnce (TORG 1938). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Yoh K, Kenmotsu H, Yamamoto N, Misumi T, Takahashi T, Saito H, Sugawara S, Yamazaki K, Nakagawa K, Sugio K, Seto T, Toyooka S, Date H, Mitsudomi T, Okamoto I, Yokoi K, Saka H, Okamoto H, Takiguchi Y, Tsuboi M. 931MO Final overall survival analysis of phase III study of pemetrexed/cisplatin versus vinorelbine/cisplatin for completely resected non-squamous non-small cell lung cancer: The JIPANG Study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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10
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Kadowaki S, Morimoto T, Okamoto H. Auditory steady state responses elicited by silent gaps embedded within a broadband noise. BMC Neurosci 2022; 23:27. [PMID: 35524192 PMCID: PMC9074354 DOI: 10.1186/s12868-022-00712-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 04/24/2022] [Indexed: 11/15/2022] Open
Abstract
Background Auditory temporal processing plays an important role in speech comprehension. Usually, behavioral tests that require subjects to detect silent gaps embedded within a continuous sound are used to assess the ability of auditory temporal processing in humans. To evaluate auditory temporal processing objectively, the present study aimed to measure the auditory steady state responses (ASSRs) elicited by silent gaps of different lengths embedded within a broadband noise. We presented a broadband noise with 40-Hz silent gaps of 3.125, 6.25, and 12.5 ms. Results The 40-Hz silent gaps of 3.125, 6.25, and 12.5 ms elicited clear ASSRs. Longer silent gaps elicited larger ASSR amplitudes and ASSR phases significantly differed between conditions. Conclusion The 40 Hz gap-evoked ASSR contributes to our understanding of the neural mechanisms underlying auditory temporal processing and may lead to the development of objective measures of auditory temporal acuity in humans. Supplementary Information The online version contains supplementary material available at 10.1186/s12868-022-00712-0.
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Affiliation(s)
- Seiichi Kadowaki
- Department of Physiology, International University of Health and Welfare Faculty of Medicine Graduate School of Medicine, 4-3 Kozunomori, Narita, 286-8686, Japan
| | - Takashi Morimoto
- Department of Audiological Engineering, RION Co., Ltd., Tokyo, 185-8533, Japan
| | - Hidehiko Okamoto
- Department of Physiology, International University of Health and Welfare Faculty of Medicine Graduate School of Medicine, 4-3 Kozunomori, Narita, 286-8686, Japan.
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11
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Fukushima M, Makino S, Matsumoto K, Okamoto H, Akahani S, Imai T, Inohara H. Antivertiginous Effect of Caloric Stimulation for Acute Peripheral Vertigo. Otol Neurotol 2022; 43:e515-e518. [PMID: 35170554 DOI: 10.1097/mao.0000000000003470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To clarify therapeutic effect of caloric stimulation for acute peripheral vertigo. PATIENTS Two patients with acute peripheral vertigo accompanied by spontaneous nystagmus. INTERVENTIONS Therapeutic. MAIN OUTCOMES AND MEASURES Changes in the maximum slow phase velocity of spontaneous nystagmus and subjective vertigo. RESULTS Reduction in the maximum slow phase velocity of spontaneous nystagmus and mitigation of subjective vertigo was observed in both patients. CONCLUSION Caloric stimulation could be one potential option as a suppressant for acute peripheral vertigo.
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Affiliation(s)
- Munehisa Fukushima
- Department of Otolaryngology and Head and Neck Surgery, Kansai Rosai Hospital, Hyogo
| | - Saho Makino
- Department of Otolaryngology and Head and Neck Surgery, Kansai Rosai Hospital, Hyogo
| | - Ken Matsumoto
- Department of Otolaryngology and Head and Neck Surgery, Kansai Rosai Hospital, Hyogo
| | - Hidehiko Okamoto
- Department of Physiology, School of Medicine, International University of Health and Welfare, Chiba
| | - Shiro Akahani
- Department of Otolaryngology and Head and Neck Surgery, Kansai Rosai Hospital, Hyogo
| | - Takao Imai
- Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Hidenori Inohara
- Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
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12
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Fukushima M, Suekata Y, Kusumoto T, Akahani S, Okamoto H, Inohara H, Takeda N. Rupture-Like Shrinkage and Regrowth of Endolymphatic Hydrops in Ménière's Disease During Remission. Otol Neurotol 2021; 42:1390-1393. [PMID: 34191784 DOI: 10.1097/mao.0000000000003221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To clarify pathophysiological characteristics of Ménière's disease during the remission phase. PATIENTS Two Ménière's disease patients with different disease durations, whose endolymphatic hydrops was longitudinally observed using 3-T magnetic resonance imaging. INTERVENTIONS Diagnostic. MAIN OUTCOMES AND MEASURES Morphological changes of endolymphatic hydrops visualized using 3-T magnetic resonance imaging. RESULTS Rupture-like shrinkage and regrowth of endolymphatic hydrops during the remission phase was observed in both patients. CONCLUSION The remission phase with hearing improvement could be as important as vertigo attacks in Ménière's disease.
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Affiliation(s)
- Munehisa Fukushima
- Department of Otolaryngology and Head and Neck Surgery, Kansai Rosai Hospital, Hyogo
| | - Yu Suekata
- Department of Otolaryngology and Head and Neck Surgery, Kansai Rosai Hospital, Hyogo
| | - Takuya Kusumoto
- Department of Otolaryngology and Head and Neck Surgery, Kansai Rosai Hospital, Hyogo
| | - Shiro Akahani
- Department of Otolaryngology and Head and Neck Surgery, Kansai Rosai Hospital, Hyogo
| | - Hidehiko Okamoto
- Department of Physiology, School of Medicine, International University of Health and Welfare, Chiba
| | - Hidenori Inohara
- Department of Otolaryngology and Head and Neck Surgery, Osaka University, Graduate School of Medicine, Osaka
| | - Noriaki Takeda
- Department of Otolaryngology, University of Tokushima School of Medicine, Tokushima, Japan
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13
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Taniguchi Y, Okamoto H, Shimokawa T, Sasaki T, Sato T, Niho S, Ohe Y, Saigusa Y, Yamanaka T. P25.02 Concurrent Chemoradiotherapy With Cisplatin + S-1 for Locally Advanced Non-Small Cell Lung Cancer: IPD Meta-Analysis. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Takeyama T, Shimada A, Sakamoto Y, Aoki T, Kondo E, Nakano S, Fukuda J, Azuma T, Sato G, Okamoto H, Kitamura Y, Udaka J, Takeda N. Development of receptive vocabulary and verbal intelligence in Japanese children with unilateral hearing loss. Auris Nasus Larynx 2021; 49:335-341. [PMID: 34511300 DOI: 10.1016/j.anl.2021.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 07/31/2021] [Accepted: 08/11/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVE In the past, it was believed that unilateral hearing loss has a minimal impact on the speech and language development in children. However, several studies have suggested that some school-age children with unilateral hearing loss have learning impairments in language. In the present study, we first examined whether preschool-age children with unilateral severe-to-profound hearing loss (UHL) have delays in the development of receptive vocabulary and verbal intelligence. In the follow-up study, we tested the children again after school admission. The objective of the present study was to reveal the development of receptive vocabulary and verbal intelligence from preschool to school years in children with UHL. METHODS Fifteen Japanese preschool-age children with UHL and a control group of 20 age-matched Japanese children with bilateral normal hearing (NH), who were examined because articulation disorder was suspected, were enrolled in this study. The development of receptive vocabulary and verbal intelligence was evaluated using the Picture Vocabulary Test-Revised (PVT-R) and the Wechsler Intelligence Scale, respectively. The present retrospective study was approved by the Committee for Medical Ethics of Tokushima University Hospital (#3801). RESULTS The scaled score (SS) of the PVT-R and verbal intelligence quotient (VIQ)/verbal comprehension index (VCI), but not performance intelligence quotient/perceptual reasoning index in children with UHL were significantly lower than those in the control children with NH at preschool-age. The SS of the PVT-R and VIQ/VCI in children with UHL significantly improved after school admission. In the subgroup analysis, the SS of the PVT-R in the lower receptive vocabulary group of children with UHL at preschool-age was significantly increased after school admission, but the SS in the normal and higher receptive vocabulary group of children with UHL at preschool-age were still around the standardized mean of SS after school admission. CONCLUSION These findings suggest that the development of receptive vocabulary and verbal intelligence was delayed in preschool-age children with UHL and that most of them caught up to exhibit normal language ability after school admission.
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Affiliation(s)
- Takaaki Takeyama
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima 770-8503, Japan; Udaka ENT Clinic, Tokushima, Japan
| | - Aki Shimada
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - Yuki Sakamoto
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - Toshihito Aoki
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima 770-8503, Japan; Udaka ENT Clinic, Tokushima, Japan
| | - Eiji Kondo
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - Seiichi Nakano
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - Junya Fukuda
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - Takahiro Azuma
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - Go Sato
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - Hidehiko Okamoto
- Department of Physiology, International University of Health and Welfare School of Medicine, Narita, Japan
| | - Yoshiaki Kitamura
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - Jiro Udaka
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima 770-8503, Japan; Udaka ENT Clinic, Tokushima, Japan
| | - Noriaki Takeda
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima 770-8503, Japan.
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Sato Y, Ikeda S, Kato T, Kenmotsu H, Ogura T, Hino A, Harada T, Kubota K, Tokito T, Okamoto I, Furuya N, Yokoyama T, Hosokawa S, Iwasawa T, Kasajima R, Miyagi Y, Misumi T, Yamanaka T, Okamoto H. 1285P Final analysis of TORG1936/AMBITIOUS: Phase II study of atezolizumab for pretreated non-small cell lung cancer with idiopathic interstitial pneumonia. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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16
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Tanaka K, Ross B, Kuriki S, Harashima T, Obuchi C, Okamoto H. Neurophysiological Evaluation of Right-Ear Advantage During Dichotic Listening. Front Psychol 2021; 12:696263. [PMID: 34305754 PMCID: PMC8295541 DOI: 10.3389/fpsyg.2021.696263] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 06/14/2021] [Indexed: 11/13/2022] Open
Abstract
Right-ear advantage refers to the observation that when two different speech stimuli are simultaneously presented to both ears, listeners report stimuli more correctly from the right ear than the left. It is assumed to result from prominent projection along the auditory pathways to the contralateral hemisphere and the dominance of the left auditory cortex for the perception of speech elements. Our study aimed to investigate the role of attention in the right-ear advantage. We recorded magnetoencephalography data while participants listened to pairs of Japanese two-syllable words (namely, "/ta/ /ko/" or "/i/ /ka/"). The amplitudes of the stimuli were modulated at 35 Hz in one ear and 45 Hz in the other. Such frequency-tagging allowed the selective quantification of left and right auditory cortex responses to left and right ear stimuli. Behavioral tests confirmed the right-ear advantage, with higher accuracy for stimuli presented to the right ear than to the left. The amplitude of the auditory steady-state response was larger when attending to the stimuli compared to passive listening. We detected a correlation between the attention-related increase in the amplitude of the auditory steady-state response and the laterality index of behavioral accuracy. The right-ear advantage in the free-response dichotic listening was also found in neural activities in the left auditory cortex, suggesting that it was related to the allocation of attention to both ears.
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Affiliation(s)
- Keita Tanaka
- Department of Science and Engineering, Tokyo Denki University, Saitama, Japan
| | - Bernhard Ross
- Baycrest Centre, Rotman Research Institute, Toronto, ON, Canada
| | - Shinya Kuriki
- Department of Science and Engineering, Tokyo Denki University, Saitama, Japan.,Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Tsuneo Harashima
- Faculty of Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - Chie Obuchi
- Department of Speech Language and Hearing Sciences, International University of Health and Welfare, Narita, Japan
| | - Hidehiko Okamoto
- Department of Physiology, School of Medicine, International University of Health and Welfare, Narita, Japan
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17
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Sakamoto Y, Shimada A, Nakano S, Kondo E, Takeyama T, Fukuda J, Udaka J, Okamoto H, Takeda N. Effects of FM system fitted into the normal hearing ear orcartilage conduction hearing aid fitted into the affected ear on speech-in-noise recognition in Japanese children with unilateral congenital aural atresia. J Med Invest 2021; 67:131-138. [PMID: 32378596 DOI: 10.2152/jmi.67.131] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
The effects of FM system fitted into the normal hearing ear (NHE) or a cartilage conduction hearing aid (CCHA) fitted into the affected ear (AE) on the speech recognition ability in noise were examined in children with unilateral congenital aural atresia (UCAA). In children with bilateral normal hearing (BNH), speech recognition score (SRS) was significantly decreased in the noisy environment of -5 dB signal-to-noise ratio (SNR), compared with those in quiet. In children with UCAA, SRS was significantly decreased in noisy environments of 0 and -5 dB SNR, compared with those in quiet. In noisy environments of 0 and -5 dB SNR, SRS in children with UCAA was significantly decreased, compared those in children with BNH. In the noisy environment of -5 dB SNR, SRS in UCAA children aided by FM system fitted into NHE was significantly better than those in unaided children in the same group. In the noisy environment of 0 dB SNR, SRS in UCAA children aided by CCHA into AE tended to be higher than those in unaided children in the same group. FM system and CCHA can be recommended as an audiological management for the improvement of speech recognition in children with UCHL in classrooms. J. Med. Invest. 67 : 134-138, February, 2020.
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Affiliation(s)
- Yuki Sakamoto
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Aki Shimada
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Seiichi Nakano
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Eiji Kondo
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Takaaki Takeyama
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan.,Udaka ENT Clinic, Tokushima, Japan
| | | | - Jiro Udaka
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan.,Udaka ENT Clinic, Tokushima, Japan
| | - Hidehiko Okamoto
- Department of Physiology, International University of Health and Welfare School of Medicine, Narita, Japan
| | - Noriaki Takeda
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
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18
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Miyazaki K, Hirasawa Y, Aga M, Aiko N, Hamakawa Y, Taniguti Y, Misumi Y, Agemi Y, Ishii M, Shimokawa T, Okamoto H. P33.08 Granulocyte Colony-Stimulating Factor-Producing Lung Cancer With Highly Expresses PD-L1 Protein Expression Level. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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19
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Yamakawa H, Miyamoto T, Morimoto T, Takamura N, Liang S, Yoshimochi H, Terashige T, Kida N, Suda M, Yamamoto HM, Mori H, Miyagawa K, Kanoda K, Okamoto H. Terahertz-field-induced polar charge order in electronic-type dielectrics. Nat Commun 2021; 12:953. [PMID: 33574221 PMCID: PMC7878852 DOI: 10.1038/s41467-021-20925-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 12/29/2020] [Indexed: 11/09/2022] Open
Abstract
Ultrafast electronic-phase change in solids by light, called photoinduced phase transition, is a central issue in the field of non-equilibrium quantum physics, which has been developed very recently. In most of those phenomena, charge or spin orders in an original phase are melted by photocarrier generations, while an ordered state is usually difficult to be created from a non-ordered state by a photoexcitation. Here, we demonstrate that a strong terahertz electric-field pulse changes a Mott insulator of an organic molecular compound in κ-(ET)2Cu[N(CN)2]Cl (ET = bis(ethylenedithio)tetrathiafulvalene), to a macroscopically polarized charge-order state; herein, electronic ferroelectricity is induced by the collective intermolecular charge transfers in each dimer. In contrast, in an isostructural compound, κ-(ET)2Cu2(CN)3, which shows the spin-liquid state at low temperatures, a similar polar charge order is not stabilized by the same terahertz pulse. From the comparative studies of terahertz-field-induced second-harmonic-generation and reflectivity changes in the two compounds, we suggest the possibility that a coupling of charge and spin degrees of freedom would play important roles in the stabilization of polar charge order.
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Affiliation(s)
- H Yamakawa
- Department of Advanced Materials Science, University of Tokyo, Chiba, 277-8561, Japan
| | - T Miyamoto
- Department of Advanced Materials Science, University of Tokyo, Chiba, 277-8561, Japan.
| | - T Morimoto
- Department of Advanced Materials Science, University of Tokyo, Chiba, 277-8561, Japan
| | - N Takamura
- Department of Advanced Materials Science, University of Tokyo, Chiba, 277-8561, Japan
| | - S Liang
- Department of Advanced Materials Science, University of Tokyo, Chiba, 277-8561, Japan
| | - H Yoshimochi
- Department of Applied Physics, University of Tokyo, Bunkyo-Ku, 113-8656, Japan
| | - T Terashige
- AIST-UTokyo Advanced Operand-Measurement Technology Open Innovation Laboratory, National Institute of Advanced Industrial Science and Technology, Chiba, 277-8589, Japan
| | - N Kida
- Department of Advanced Materials Science, University of Tokyo, Chiba, 277-8561, Japan
| | - M Suda
- Division of Functional Molecular Systems, Research Center of Integrative Molecular Systems (CIMoS), Institute for Molecular Science, Okazaki, 444-8585, Japan.,Department of Molecular Engineering, Kyoto University, Kyoto, 615-8510, Japan
| | - H M Yamamoto
- Division of Functional Molecular Systems, Research Center of Integrative Molecular Systems (CIMoS), Institute for Molecular Science, Okazaki, 444-8585, Japan
| | - H Mori
- Institute for Solid State Physics, University of Tokyo, Chiba, 277-8581, Japan
| | - K Miyagawa
- Department of Applied Physics, University of Tokyo, Bunkyo-Ku, 113-8656, Japan
| | - K Kanoda
- Department of Applied Physics, University of Tokyo, Bunkyo-Ku, 113-8656, Japan
| | - H Okamoto
- Department of Advanced Materials Science, University of Tokyo, Chiba, 277-8561, Japan. .,AIST-UTokyo Advanced Operand-Measurement Technology Open Innovation Laboratory, National Institute of Advanced Industrial Science and Technology, Chiba, 277-8589, Japan.
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20
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Senda H, Okamoto H. A case of pubic abscess after prostate cancer surgery and radiotherapy treated with rectus femoris muscle flap. JPRAS Open 2020; 26:54-59. [PMID: 33134471 PMCID: PMC7588652 DOI: 10.1016/j.jpra.2020.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 09/27/2020] [Indexed: 11/18/2022] Open
Abstract
We report the case of a 95-year-old man with soft tissue deficiency associated with a pubic abscess that occurred 30 years after prostate cancer surgery and radiation therapy. A fistula with purulent discharge without any obvious cause appeared in the midline of the lower abdomen and progressed to a soft tissue defect in which several calcium phosphate stones of 5-8 mm in diameter were found. Computed tomography showed calcium deposits on the surface of the pubis and irregular zonal calcifications extending from the pubis to the medial region of both thighs. Conservative treatment did not improve the patient's condition; thus, surgical treatment was performed. The pedicled rectus femoris muscle flap was elevated from the left thigh and transferred to fill the tissue defect, then a split thickness skin graft was applied on it. The tissue defect was successfully repaired, and the patient was able to regain ambulation ability. In the present case, it was presumed that urine exudation around the bladder due to radiation cystitis was involved in the formation of ectopic calculi and subsequent infection. In reconstructing a complex defect associated with infection, using muscle flaps to fill the dead space with well vascularized tissue is considered to be appropriate. In our case, we chose a rectus femoris muscle flap, which has advantages in volume and versatility of transposition owing to long vascular pedicle and requires no microsurgical vascular anastomosis. As a result, the preoperative activity was maintained, the infection was treated, and a good course was obtained.
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Affiliation(s)
- H. Senda
- Department of Orthopaedic Surgery, Nagoya City East Medical Center, 2-23 Wakamizu 1, Chikusa, Nagoya, Aichi, 464-8547, Japan
| | - H. Okamoto
- Department of Orthopaedic Surgery, Nagoya City University
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21
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Inaba K, Okuma K, Murakami N, Kashihara T, Okamoto H, Nakamura S, Nishioka S, Takahashi A, Takahashi K, Igaki H, Nakayama Y, Itami J. The Treatment Results of Reduced Dose Radiotherapy For Gastric MALT Lymphoma. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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22
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Noro R, Igawa S, Bessho A, Hirose T, Tsuneo S, Nakashima M, MInato K, Seki N, Tokito T, Harada T, Sasada S, Miyamoto S, Tanaka Y, Furuya N, Kaburagi T, Hayashi H, Iihara H, Naoki K, Okamoto H, Kubota K. 1365P A prospective, phase II trial of low-dose afatinib monotherapy for patients with EGFR, mutation-positive, non-small cell lung cancer (TORG1632). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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23
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Ohnishi H, Jinnouchi O, Agawa S, Kondo E, Kawata I, Okamoto H, Azuma T, Sato G, Kitamura Y, Abe K, Takeda N. Daily auricular stimulation with capsaicin ointment improved cough reflex sensitivity in elderly patients with dysphagia: a pilot study. Acta Otolaryngol 2020; 140:249-253. [PMID: 32022628 DOI: 10.1080/00016489.2020.1716993] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Background: In our previous study, a single auricular application of capsaicin ointment, but not placebo improved cough reflex in elderly patients with dysphagia.Aims/Objectives: In the present study, we examined whether daily auricular application of capsaicin ointment continued to improve cough reflex in similar patients.Material and methods: With a cotton swab, 0.025% capsaicin ointment was applied in each external auditory canal alternately once a day for 2 weeks. The cough reflex sensitivity was evaluated on videoendoscopy using a numerical score and inhalation cough challenge test using citric acid in elderly dysphagic inpatients.Results: After daily auricular application of capsaicin ointment for 2 weeks, the endoscopic score of glottal closure and cough reflexes significantly improved, and the citric acid cough threshold significantly decreased. There was a significant correlation between the endoscopic score and the citric acid cough threshold before and after daily capsaicin application in the patients.Conclusions: Daily auricular stimulation with capsaicin ointment for 2 weeks continued to improve the cough reflex sensitivity in elderly patients with dysphagia.Significance: Daily auricular stimulation with capsaicin ointment would be a safe and effective intervention to prevent pneumonia in elderly with a risk of aspiration.
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Affiliation(s)
- Hiroki Ohnishi
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Osamu Jinnouchi
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
- Department of Otolaryngology, Anan Kyoei Hospital, Tokushima, Japan
| | - Seiji Agawa
- Department of Otolaryngology, Anan Kyoei Hospital, Tokushima, Japan
| | - Eiji Kondo
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Ikuji Kawata
- Department of Otolaryngology, Anan Kyoei Hospital, Tokushima, Japan
| | - Hidehiko Okamoto
- Department of Physiology, International University of Health and Welfare School of Medicine, Narita, Japan
| | - Takahiro Azuma
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Go Sato
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Yoshiaki Kitamura
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Koji Abe
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Noriaki Takeda
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
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Okuma K, Igaki H, Okamoto H, Nishioka S, Iijima K, Kashihara T, Takahashi K, Murakami N, Nakayama Y, Itami J. SP-008: Clinical experiences and Dosimetry of MR guided X-ray Therapy (MRXT). Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(20)30560-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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25
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Takezawa K, Ueda-Hayakawa I, Yamazaki F, Kambe N, Son Y, Okamoto H. Successful treatment with hydroxychloroquine for systemic lupus erythematosus with cutaneous involvement accompanied by a xanthomatous reaction. Lupus 2019; 29:79-82. [DOI: 10.1177/0961203319890677] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Antimalarials are usually recommended for the first-line systemic treatment of cutaneous lupus erythematosus. Alopecia in patients with discoid lupus erythematosus (DLE) is sometimes a refractory condition in spite of topical therapies. We herein described a case of DLE on the scalp with a pathological change of a xanthomatous reaction, which was successfully treated with hydroxychloroquine (HCQ). A 34-year-old woman presented with hair loss to the parietal region. She had been diagnosed with systemic lupus erythematosus (SLE) four years previously. Treatment with 30 mg/day of prednisolone (PSL) had been initiated, and the dose was gradually reduced. At 10 mg/day of PSL, she had noticed her hair loss. Physical examination revealed some small erythematous lesions to the parietal region with accompanying hair loss. Pathological findings of the erythematous lesion on her head revealed thickening of the basement membrane zone, the interface dermatitis with vacuolar degeneration, and both superficial perivascular and perifollicular infiltration of inflammatory cells in the dermis. In addition, there was an infiltrate of xanthomatous cells detected in the papillary dermis, which were positive for CD68 and CD163. The patient started treatment with HCQ at a dose of 200 mg/day. The skin lesions completely resolved within five months after initiation of HCQ without increase in the dose of PSL. Xanthomatous reactions are rarely recognized in lupus erythematosus. The chronic epithelial injury in DLE could be implicated in triggering the secondary reactive process of a xanthomatous reaction. We believe that the reaction seen in our patient was a secondary change to pathological alteration due to SLE. However, as yet unrecognized factors may play a role in the development of a xanthomatous reaction in DLE.
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Affiliation(s)
- K Takezawa
- Department of Dermatology, Kansai Medical University, Hirakata, Japan
| | - I Ueda-Hayakawa
- Department of Dermatology, Kansai Medical University, Hirakata, Japan
| | - F Yamazaki
- Department of Dermatology, Kansai Medical University, Hirakata, Japan
| | - N Kambe
- Department of Dermatology, Kansai Medical University, Hirakata, Japan
| | - Y Son
- Department of Rheumatology and Clinical Immunology, Kansai Medical University, Hirakata, Japan
| | - H Okamoto
- Department of Dermatology, Kansai Medical University, Hirakata, Japan
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26
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Kubo T, Nogami N, Bessho A, Morita A, Ikeo S, Yokoyama T, Ishihara M, Honda T, Fujimoto N, Murakami S, Kaira K, Harada T, Nakamura K, Iwasawa S, Shimokawa T, Kiura K, Yamashita N, Okamoto H. Phase II trial of carboplatin, nab-paclitaxel and bevacizumab for advanced non-squamous non-small cell lung cancer (CARNAVAL study; TORG1424/OLCSG1402). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz437.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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27
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Takehara R, Sunami K, Miyagawa K, Miyamoto T, Okamoto H, Horiuchi S, Kato R, Kanoda K. Topological charge transport by mobile dielectric-ferroelectric domain walls. Sci Adv 2019; 5:eaax8720. [PMID: 31763453 PMCID: PMC6858255 DOI: 10.1126/sciadv.aax8720] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 09/19/2019] [Indexed: 06/10/2023]
Abstract
The concept of topology has been widely applied in condensed matter physics, leading to the identification of peculiar electronic states on three-dimensional (3D) surfaces or 2D lines separating topologically distinctive regions. In the systems explored so far, the topological boundaries are built-in walls; thus, their motional degrees of freedom, which potentially bring about new paradigms, have been experimentally inaccessible. Here, working with a quasi-1D organic material with a charge-transfer instability, we show that mobile neutral-ionic (dielectric-ferroelectric) domain boundaries with topological charges carry strongly 1D-confined and anomalously large electrical conduction with an energy gap much smaller than the one-particle excitation gap. This consequence is further supported by nuclear magnetic resonance detection of spin solitons, which are required for steady current of topological charges. The present observation of topological charge transport may open a new channel for broad charge transport-related phenomena such as thermoelectric effects.
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Affiliation(s)
- R. Takehara
- Department of Applied Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - K. Sunami
- Department of Applied Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - K. Miyagawa
- Department of Applied Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - T. Miyamoto
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - H. Okamoto
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
- AIST-UTokyo Advanced Operando–Measurement Technology Open Innovation Laboratory (OPERANDO-OIL), National Institute of Advanced Industrial Science and Technology (AIST), Chiba 277-8568, Japan
| | - S. Horiuchi
- Flexible Electronics Research Center (FLEC), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan
| | - R. Kato
- Condensed Molecular Materials Laboratory, RIKEN, Wako, Saitama 351-0198, Japan
| | - K. Kanoda
- Department of Applied Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
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Ikeda S, Kato T, Kenmotsu H, Ogura T, Iwasawa S, Iwasawa T, Kasajima R, Miyagi Y, Misumi T, Yamanaka T, Okamoto H. Phase II study of atezolizumab for pretreated advanced / recurrent non-small cell lung cancer with idiopathic interstitial pneumonia (TORG1936 / AMBITIOUS study). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz437.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Okamoto H, Kume T, Yamada R, Neishi Y, Uemura S. P5612In vivo histological and clinical evaluation of layered culprit plaque by optical coherence tomography in stable angina patients. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
In patients with stable angina pectoris (SAP), exact mechanism of plaque progression overtime is still unclear due to lack of histological evaluation. Directional coronary atherectomy (DCA) allows for the differential cutting of atherosclerotic lesions and for the histological examination.
Purpose
The aims of this study were to compare the histological features obtained by DCA and layered pattern (LP) by OCT, and to establish the prevalence and clinical characteristics of LP in culprit lesion form SAP patients.
Methods
SAP patients who underwent OCT imaging guide PCI in our medical school hospital between June 2016 and June 2018 were included into this study. This was two-fold histological and clinical studies. In a histological study, we evaluated histological features of 42 specimens from 18 patients who underwent DCA and compare OCT findings. Lesions were classified into the following categories based on the OCT finding before DCA cutting; homogeneous or heterogeneous group. Furthermore, lesions in heterogeneous group were classified into 2 categories; LP or non-LP group. In a clinical study, 205 target lesions form 205 patients were categorized as shown above at minimum lumen area (MLA) sites. Plaque characteristics were compared among these groups.
Results
In the histological study, 9 (21.4%) specimens were classified in homogeneous group and 33 (78.6%) in heterogeneous group. In 33 heterogeneous group, LP group were observed in 12 specimens (36.3%). Of 12 LP group, 10 LP group consisted of intramural thrombosis. In clinical study, 39 (19.0%) lesion were classified in homogeneous group and 166 (81.0%) in heterogeneous group. In 166 heterogeneous group, LP group were observed in 75 lesions (45.2%). Of heterogeneous group, LP group had significantly smaller MLA (1.5±0.9 mm2 vs 1.9±1.0 mm2, p<0.05) and higher rate of microchannels (57.3% vs 15.4%, p<0.05) than non-LP group.
A representative layered pattern case
Conclusions
LP in culprit lesion with SAP was significantly associated with intramural thrombosis. MLA sites in LP was significantly smaller than in non-LP group. These data suggest that thrombus formation and subsequent their organization overtime might contribute to the plaque progression even in SAP patients.
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Affiliation(s)
- H Okamoto
- Kawasaki Medical School, Cardiology, Kurashiki, Japan
| | - T Kume
- Kawasaki Medical School, Cardiology, Kurashiki, Japan
| | - R Yamada
- Kawasaki Medical School, Cardiology, Kurashiki, Japan
| | - Y Neishi
- Kawasaki Medical School, Cardiology, Kurashiki, Japan
| | - S Uemura
- Kawasaki Medical School, Cardiology, Kurashiki, Japan
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Otani S, Yamada K, Miyamoto S, Azuma K, Ishii H, Bessho A, Hosokawa S, Kunitoh H, Miyazaki K, Tanaka H, Miura S, Aono H, Nakahara Y, Kusaka K, Hosomi Y, Hamada A, Okamoto H. MA21.11 A Multicenter Phase II Study of Low-Dose Erlotinib in Frail Patients with EGFR Mutation-Positive, Non-Small Cell Lung Cancer: TORG1425. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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31
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Sekine, Harada H, Yamamoto N, Wakabayashi M, Murakami H, Goto K, Nogami N, Seto T, Oshita F, Okamoto H, Tanaka H, Tamura T, Ishikura S, Ohe Y. Randomized phase II trial of CODE or AP after chemoradiotherapy for LD-SCLC: Long-term survival and toxicity analysis. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz264.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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32
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Tsuboi M, Kenmotsu H, Yamanaka T, Yoshiya K, Takahashi T, Ueno T, Goto K, Daga H, Ikeda N, Sugio K, Seto T, Toyooka S, Date H, Mitsudomi T, Okamoto I, Yokoi K, Saka H, Okamoto H, Takiguchi Y, Yamamoto N. JIPANG study: Randomized phase III study of pemetrexed/cisplatin (PEM/Cis) versus vinorelbine /cisplatin (VNR/Cis) for completely resected p-stage II-IIIA non-squamous non-small cell lung cancer (Ns-NSCLC): Outcomes based on EGFR mutation status. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz258.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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33
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Takahashi J, Goto T, Ishimaru T, Okamoto H, Hagiwara Y, Watase H, Hasegawa K. 73 Association of Advanced Age With a Higher Risk of Endobronchial Intubation in the Emergency Department. Ann Emerg Med 2019. [DOI: 10.1016/j.annemergmed.2019.08.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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34
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Kiyohara T, Tanimura H, Makimura K, Shimada S, Ohnishi S, Miyamoto M, Shijimaya T, Ma N, Okamoto H. Small papular pseudolymphoma induced by a patch test for gold. Clin Exp Dermatol 2019; 45:267-269. [PMID: 31350859 DOI: 10.1111/ced.14055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/23/2019] [Indexed: 11/29/2022]
Affiliation(s)
- T Kiyohara
- Department of Dermatology, Kansai Medical University, Osaka, Japan.,Department of Dermatology, Kansai Medical University Medical Center, Osaka, Japan
| | - H Tanimura
- Department of Dermatology, Kansai Medical University Medical Center, Osaka, Japan
| | - K Makimura
- Department of Dermatology, Kansai Medical University Medical Center, Osaka, Japan
| | - S Shimada
- Department of Dermatology, Kansai Medical University Medical Center, Osaka, Japan
| | - S Ohnishi
- Department of Dermatology, Kansai Medical University Medical Center, Osaka, Japan
| | - M Miyamoto
- Department of Dermatology, Kansai Medical University Medical Center, Osaka, Japan
| | - T Shijimaya
- Department of Dermatology, Kansai Medical University Medical Center, Osaka, Japan
| | - N Ma
- Department of Dermatology, Kansai Medical University, Osaka, Japan
| | - H Okamoto
- Department of Dermatology, Kansai Medical University, Osaka, Japan
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35
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Jinnouchi O, Ohnishi H, Kondo E, Kawata I, Bando H, Okamoto H, Azuma T, Sato G, Kitamura Y, Abe K, Takeda N. Aural stimulation with capsaicin prevented pneumonia in dementia patients. Auris Nasus Larynx 2019; 47:154-157. [PMID: 31280931 DOI: 10.1016/j.anl.2019.06.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 06/11/2019] [Accepted: 06/20/2019] [Indexed: 11/30/2022]
Abstract
OBJECTIVE In the present study, we examined the effects of daily application of capsaicin ointment to the external auditory canal for 6 months on the development of pneumonia in elderly dementia patients at high risk of aspiration. METHODS Twenty-nine oldest-old bedridden dementia inpatients at high risk of aspiration were enrolled in the present study. Ointment containing 0.025% capsaicin was applied to each external auditory canal with a cotton swab alternatively once a day for 6 months. RESULTS The incidence of pneumonia during the 6 months before the intervention was 1.80±0.37 in these patients. However, this incidence significantly decreased to 0.40±0.29 (p<0.01) during the 6 months of the alternative application of capsaicin ointment to each auditory canal. No adverse effect such as otalgia was observed. CONCLUSION These findings suggest that daily long-term aural stimulation with capsaicin ointment enhanced the cough reflex via Arnold's ear-cough reflex as a glottis protective measure, resulting in the reduction of incidence of pneumonia in elderly dementia patients at high risk of aspiration. The daily aural stimulation with capsaicin ointment may be a safe and promising intervention to prevent aspiration pneumonia in elderly people, especially those who cannot undergo swallowing exercise.
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Affiliation(s)
- Osamu Jinnouchi
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan; Department of Otolaryngology, Anan Kyoei Hospital, Tokushima, Japan
| | - Hiroki Ohnishi
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Eiji Kondo
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Ikuji Kawata
- Department of Otolaryngology, Anan Kyoei Hospital, Tokushima, Japan
| | - Hiroyasu Bando
- Department of Respiratory Medicine, Tokushima Prefectural Kaifu Hospital, Tokushima, Japan
| | - Hidehiko Okamoto
- Department of Physiology, International University of Health and Welfare School of Medicine, Narita, Japan
| | - Takahiro Azuma
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Go Sato
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Yoshiaki Kitamura
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Koji Abe
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Noriaki Takeda
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan.
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36
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Terashige T, Ono T, Miyamoto T, Morimoto T, Yamakawa H, Kida N, Ito T, Sasagawa T, Tohyama T, Okamoto H. Doublon-holon pairing mechanism via exchange interaction in two-dimensional cuprate Mott insulators. Sci Adv 2019; 5:eaav2187. [PMID: 31187057 PMCID: PMC6555625 DOI: 10.1126/sciadv.aav2187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Accepted: 05/02/2019] [Indexed: 06/09/2023]
Abstract
Coupling of charge and spin degrees of freedom is a critical feature of correlated electron oxides, as represented by the spin-related mechanism of a Cooper pair under high-T c superconductivity. A doublon-holon pair generated on an antiferromagnetic spin background is also predicted to attract each other via the spin-spin interaction J, similar to a Cooper pair, while its evidence is difficult to obtain experimentally. Here, we investigate such an excitonic effect by electroreflectance spectroscopy using terahertz electric field pulses in undoped cuprates: Nd2CuO4, Sr2CuO2Cl2, and La2CuO4. Analyses of the spectral changes of reflectivity under electric fields reveal that the splitting of odd-parity and even-parity excitons, a measure of doublon-holon binding energy, increases with J. This trend is reproduced by t-J-type model calculations, providing strong evidence of the spin-related doublon-holon pairing. Agreement with the calculations supports the s-wave symmetry of the doublon-holon pair in contrast to the d-wave Cooper pair in doped cuprates.
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Affiliation(s)
- T. Terashige
- Department of Advanced Materials Science, University of Tokyo, Chiba 277-8561, Japan
- AIST-UTokyo Advanced Operando-Measurement Technology Open Innovation Laboratory (OPERANDO-OIL), National Institute of Advanced Industrial Science and Technology (AIST), Chiba 277-8568, Japan
| | - T. Ono
- Department of Applied Physics, University of Tokyo, Tokyo 113-8656, Japan
| | - T. Miyamoto
- Department of Advanced Materials Science, University of Tokyo, Chiba 277-8561, Japan
| | - T. Morimoto
- Department of Advanced Materials Science, University of Tokyo, Chiba 277-8561, Japan
| | - H. Yamakawa
- Department of Advanced Materials Science, University of Tokyo, Chiba 277-8561, Japan
| | - N. Kida
- Department of Advanced Materials Science, University of Tokyo, Chiba 277-8561, Japan
| | - T. Ito
- National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8565, Japan
| | - T. Sasagawa
- Laboratory for Materials and Structures, Tokyo Institute of Technology, Yokohama 226-8503, Japan
| | - T. Tohyama
- Department of Applied Physics, Tokyo University of Science, Tokyo 125-8585, Japan
| | - H. Okamoto
- Department of Advanced Materials Science, University of Tokyo, Chiba 277-8561, Japan
- AIST-UTokyo Advanced Operando-Measurement Technology Open Innovation Laboratory (OPERANDO-OIL), National Institute of Advanced Industrial Science and Technology (AIST), Chiba 277-8568, Japan
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37
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Ueda‐Hayakawa I, Hamaguchi Y, Okiyama N, Motegi S, Yamaoka T, Miyake S, Higashi A, Okamoto H, Takehara K, Fujimoto M. Anti‐TIF‐1β antibody in dermatomyositis. Br J Dermatol 2019. [DOI: 10.1111/bjd.17661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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38
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Ueda‐Hayakawa I, Hamaguchi Y, Okiyama N, Motegi S, Yamaoka T, Miyake S, Higashi A, Okamoto H, Takehara K, Fujimoto M. 抗‐TIF‐1b 抗体与皮肌炎. Br J Dermatol 2019. [DOI: 10.1111/bjd.17677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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39
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Okuma K, Okamoto H, Iijima K, Nishioka F, Kashihara T, Shima S, Uematsu M, Igaki H, Nakayama Y, Itami J, Murakami N, Nakamura S. EP-1403 Retrospective evaluation of usefulness of MR-guided adaptive radiotherapy of gastric MALT lymphoma. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31823-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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40
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Mian MR, Iguchi H, Takaishi S, Afrin U, Miyamoto T, Okamoto H, Yamashita M. Smallest Optical Gap for Pt(II)-Pt(IV) Mixed-Valence Pt-Cl and Pt-Br Chain Complexes Achieved by Using a Multiple-Hydrogen-Bond Approach. Inorg Chem 2018; 58:114-120. [PMID: 30556698 DOI: 10.1021/acs.inorgchem.8b01910] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A multiple-hydrogen-bond approach was applied to shorten Pt-X-Pt distances in Cl- and Br-bridged Pt chain complexes. [Pt(dabdOH)2Cl]Cl2 (5) and [Pt(dabdOH)2Br]Br2 (6) (dabdOH = (2 S,3 S)-2,3-diaminobutane-1,4-diol) contain hydroxy groups, which form additional hydrogen bonds with counteranions. 5 has the shortest Pt-Cl-Pt distance (5.0747(8) Å) of all Cl-bridged Pt chain complexes reported to date. Furthermore, the smallest optical gap (1.45 eV for 5 and 1.19 eV for 6) in any Cl- or Br-bridged Pt chain complex was achieved. 6 has the highest electrical conductivity (1.9 × 10-5 S cm-1 at room temperature) of all Br-bridged Pt chain complexes. This study shows that the introduction of additional hydrogen bonds between the ligands and halides is effective to enhance the electronic properties of halogen-bridged metal complexes.
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Affiliation(s)
- M Rasel Mian
- Department of Chemistry, Graduate School of Science , Tohoku University , 6-3 Aza-Aoba , Aramaki, Sendai 980-8578 , Japan
| | - H Iguchi
- Department of Chemistry, Graduate School of Science , Tohoku University , 6-3 Aza-Aoba , Aramaki, Sendai 980-8578 , Japan
| | - S Takaishi
- Department of Chemistry, Graduate School of Science , Tohoku University , 6-3 Aza-Aoba , Aramaki, Sendai 980-8578 , Japan
| | - U Afrin
- Department of Chemistry, Graduate School of Science , Tohoku University , 6-3 Aza-Aoba , Aramaki, Sendai 980-8578 , Japan
| | - T Miyamoto
- Department of Advanced Materials Science, Graduate School of Frontier Sciences , The University of Tokyo , Kashiwa , Chiba 277-8561 , Japan
| | - H Okamoto
- Department of Advanced Materials Science, Graduate School of Frontier Sciences , The University of Tokyo , Kashiwa , Chiba 277-8561 , Japan.,AIST-UTokyo Advanced Operando-Measurement Technology Open Innovation Laboratory , National Institute of Advanced Industrial Science and Technology , Kashiwa , Chiba 277-8568 , Japan
| | - M Yamashita
- Department of Chemistry, Graduate School of Science , Tohoku University , 6-3 Aza-Aoba , Aramaki, Sendai 980-8578 , Japan.,Advanced Institute for Materials Research , Tohoku University , 2-1-1 Katahira , Aoba-ku, Sendai 980-8577 , Japan.,School of Materials Science and Engineering , Nankai University , Tianjin 300350 , P. R. China
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41
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Umezawa R, Wakita A, Ito Y, Nakamura S, Okamoto H, Takahashi K, Inaba K, Murakami N, Igaki H, Jingu K, Itami J. Analysis about Synchronization of Respiration-induced Motion at Duodenum, Stomach, and Lymph Node Regions for Primary tumor in Pancreatic Cancer Using 4-Dimensional Computed Tomography. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Sunami K, Nishikawa T, Miyagawa K, Horiuchi S, Kato R, Miyamoto T, Okamoto H, Kanoda K. Evidence for solitonic spin excitations from a charge-lattice-coupled ferroelectric order. Sci Adv 2018; 4:eaau7725. [PMID: 30515457 PMCID: PMC6269158 DOI: 10.1126/sciadv.aau7725] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 10/30/2018] [Indexed: 06/09/2023]
Abstract
Topological defects have been explored in different fields ranging from condensed matter physics and particle physics to cosmology. In condensed matter, strong coupling between charge, spin, and lattice degrees of freedom brings about emergent excitations with topological characteristics at low energies. One-dimensional (1D) systems with degenerate dimerization patterns are typical stages for the generation of topological defects, dubbed "solitons"; for instance, charged solitons are responsible for high electrical conductivity in doped trans-polyacetylene. Here, we provide evidence based on a nuclear magnetic resonance (NMR) study for mobile spin solitons deconfined from a strongly charge-lattice-coupled spin-singlet ferroelectric order in a quasi-1D organic charge-transfer complex. The NMR spectral shift and relaxation rate associated with static and dynamic spin susceptibilities indicate that the ferroelectric order is violated by dilute solitonic spin excitations, which were further demonstrated to move diffusively by the frequency dependence of the relaxation rate. The traveling solitons revealed here may promise the emergence of anomalous electrical and thermal transport.
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Affiliation(s)
- K. Sunami
- Department of Applied Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - T. Nishikawa
- Department of Applied Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - K. Miyagawa
- Department of Applied Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - S. Horiuchi
- Flexible Electronics Research Center (FLEC), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan
| | - R. Kato
- Condensed Molecular Materials Laboratory, RIKEN, Wako, Saitama 351-0198, Japan
| | - T. Miyamoto
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - H. Okamoto
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
- AIST-UTokyo Advanced Operando-Measurement Technology Open Innovation Laboratory (OPERANDO-OIL), National Institute of AIST, Chiba 277-8568, Japan
| | - K. Kanoda
- Department of Applied Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
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43
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Terai S, Ueda-Hayakawa I, Nguyen CTH, Ly NTM, Yamazaki F, Kambe N, Son Y, Okamoto H. Palisaded neutrophilic and granulomatous dermatitis associated with systemic lupus erythematosus: possible involvement of CD163 + M2 macrophages in two cases, and a review of published works. Lupus 2018; 27:2220-2227. [PMID: 30376790 DOI: 10.1177/0961203318809892] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Palisaded neutrophilic and granulomatous dermatitis (PNGD) is a commonly occurring condition related to systemic autoimmune disease. It is characterized histopathologically by a distinct pattern of granulomatous inflammation in the presence or absence of leukocytoclastic vasculitis. The properties of granulomatous cells in PNGD are still uncertain. OBJECTIVE We sought further investigation on the phenotype of the infiltrated cells in PNGD from two patients with systemic lupus erythematosus (SLE) and reviewed the previous published reports in order to provide a comprehensive summary on the clinical features of PNGD in SLE. METHODS The immunohistochemical features of granulomatous cells in PNGD associated with SLE were analyzed. Immunohistochemical studies were performed on sections from our two cases using antibodies against CD68, CD163, CD15, Factor XIIIa, myeloperoxidase and neutrophil elastase. The clinical characteristics of the SLE patients who developed PNGD were also evaluated. We included all cases retrieved through a PubMed search with the key words PNGD and SLE. RESULTS Cutaneous lesions consisted of erythematous plaques distributed on the face and upper limbs in both cases. The infiltrated cells were mainly positive for CD68 and CD163, a phenotype suggestive of M2 macrophages. Some mature neutrophils and lymphocytes were also present. A review of the literature of PNGD associated with SLE revealed a predominance in females, high prevalence of lupus nephritis and a good response to systemic steroids, with frequent skin lesions relapses during tapering of the treatment. LIMITATIONS This study examined only two cases; the pathogenesis of the disease remains to be clarified. CONCLUSION PNGD lesions were abundantly infiltrated by M2 macrophages, suggesting that they may have a role in this condition. SLE accompanied by PNGD might be associated with lupus nephritis and frequent relapses of skin lesions.
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Affiliation(s)
- S Terai
- 1 Department of Dermatology, Kansai Medical University, Hirakata, Japan
| | - I Ueda-Hayakawa
- 1 Department of Dermatology, Kansai Medical University, Hirakata, Japan
| | - C T H Nguyen
- 1 Department of Dermatology, Kansai Medical University, Hirakata, Japan.,2 Department of Dermatology and Venereology, University of Medicine and Pharmacy at Ho Chi Minh City, Vietnam
| | - N T M Ly
- 1 Department of Dermatology, Kansai Medical University, Hirakata, Japan
| | - F Yamazaki
- 1 Department of Dermatology, Kansai Medical University, Hirakata, Japan
| | - N Kambe
- 1 Department of Dermatology, Kansai Medical University, Hirakata, Japan
| | - Y Son
- 3 Department of Rheumatology and Clinical Immunology, Kansai Medical University, Hirakata, Japan
| | - H Okamoto
- 1 Department of Dermatology, Kansai Medical University, Hirakata, Japan
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44
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Ueda‐Hayakawa I, Hamaguchi Y, Okiyama N, Motegi S, Yamaoka T, Miyake S, Higashi A, Okamoto H, Takehara K, Fujimoto M. Autoantibody to transcriptional intermediary factor‐1β as a myositis‐specific antibody: clinical correlation with clinically amyopathic dermatomyositis or dermatomyositis with mild myopathy. Br J Dermatol 2018; 180:881-887. [DOI: 10.1111/bjd.17098] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/09/2018] [Indexed: 12/28/2022]
Affiliation(s)
- I. Ueda‐Hayakawa
- Department of Dermatology Kansai Medical University 2‐5‐1 Shinmachi Hirakata Osaka 573‐1010 Japan
| | - Y. Hamaguchi
- Department of Dermatology Faculty of Medicine Institute of Medical Pharmaceutical and Health Science Kanazawa University Kanazawa Japan
| | - N. Okiyama
- Department of Dermatology Faculty of Medicine University of Tsukuba Tsukuba Japan
| | - S. Motegi
- Department of Dermatology Gunma University Graduate School of Medicine Maebashi Japan
| | - T. Yamaoka
- Department of Dermatology Osaka University Graduate School of Medicine Suita Japan
| | - S. Miyake
- Department of Dermatology Faculty of Medicine Kinki University Osaka Japan
| | - A. Higashi
- Department of Dermatology Toyama Red Cross Hospital Toyama Japan
| | - H. Okamoto
- Department of Dermatology Kansai Medical University 2‐5‐1 Shinmachi Hirakata Osaka 573‐1010 Japan
| | - K. Takehara
- Department of Dermatology Faculty of Medicine Institute of Medical Pharmaceutical and Health Science Kanazawa University Kanazawa Japan
| | - M. Fujimoto
- Department of Dermatology Faculty of Medicine University of Tsukuba Tsukuba Japan
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45
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Shimada A, Udaka J, Nagashima H, Chiba I, Kondo E, Nakano S, Okamoto H, Takeda N. Effects of FM system fitted into normal hearing ear on speech-in-noise recognition in Japanese school-aged children with unilateral severe-to-profound hearing loss. J Med Invest 2018; 65:216-220. [PMID: 30282863 DOI: 10.2152/jmi.65.216] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
OBJECTIVES We examined speech recognition ability of elementary school-aged Japanese children with unilateral hearing loss under noisy environments and then examined the effects of the FM system fitted into their normal hearing ear on their speech recognition ability. METHODS Twelve children with severe-to-profound sensorineural hearing loss and ten age-matched children with bilateral normal hearing received speech recognition test in quiet and noisy environments. Other nine children with severe-to-profound sensorineural hearing loss received speech recognition test with or without the FM receiver fitted to the normal hearing ear in quiet and noisy environments. RESULTS Signal-to-noise ratio (SNR) in Japanese elementary school classrooms was estimated to be -6.9 dB at a preferential seat. In noisy environment of -5 dB SNR similar to working classrooms, the correct rates of speech recognition test in children with unilateral hearing loss were significantly lower, compared with those in children with bilateral normal hearing. In the noisy environment, the correct rates in children aided by the FM system with unilateral hearing loss were significantly better, compared with unaided ones. CONCLUSION The results suggested that the FM system is recommended as an audiological management for improvement of speech recognition of children with unilateral hearing loss in noisy classrooms. J. Med. Invest. 65:216-220, August, 2018.
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Affiliation(s)
- Aki Shimada
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences
| | - Jiro Udaka
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences
| | - Hinami Nagashima
- Department of Speech-Language-Hearing Therapy, Kyushu University of Health and Welfare, School of Health Sciences
| | - Izumi Chiba
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences
| | - Eiji Kondo
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences
| | - Seiichi Nakano
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences
| | - Hidehiko Okamoto
- Department of Physiology, International University of Health and Welfare School of Medicine
| | - Noriaki Takeda
- Department of Otolaryngology, Tokushima University Graduate School of Biomedical Sciences
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Miyamoto S, Tokkito T, Bessho A, Fukamatsu N, Kunitoh H, Ishii M, Tanaka H, Aono H, Fukui T, Kusaka K, Hosomi Y, Hamada A, Yamada K, Okamoto H. ABCB1 genetic polymorphism and pharmacokinetic analysis of low dose erlotinib in frail patients with EGFR mutation (mt)-positive, non-small cell lung cancer: TORG1425. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy292.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kunitani Y, Goto T, Funakoshi H, Okamoto H, Hagiwara Y, Watase H, Hasegawa K. 97 The Association Between Multiple Intubation Attempts and Adverse Events in Pediatric Intubations in the Emergency Department. Ann Emerg Med 2018. [DOI: 10.1016/j.annemergmed.2018.08.102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Hosokawa S, Otani S, Sasaki J, Fukui T, Nakahara Y, Bessho A, Fukamatsu N, Nakamura Y, Kasai T, Sugiyama T, Tokitho T, Seki N, Hamada A, Masuda N, Okamoto H. P3.01-37 Phase II Study of Amrubicin Plus Erlotinib in Previously Treated, Advanced Non-Small Cell Lung Cancer Patients with Wild-Type EGFR: TORG 1320. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Takiguchi Y, Yamada K, Tanaka H, Kubota K, Kishi K, Shimokawa T, Saito H, Hosomi Y, Kato T, Nogami N, Igawa S, Kasai T, Nakamura Y, Yamanaka T, Okamoto H. Survival update in randomized phase II trial of S-1/cisplatin (SP) or docetaxel/cisplatin (DP) with concurrent thoracic radiotherapy for inoperable stage III non-small cell lung cancer (NSCLC)-TORG1018. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy291.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Usui Y, Kenmotsu H, Mori K, Ono A, Yoh K, Baba T, Fujiwara Y, Yamaguchi O, Ko R, Okamoto H, Yamamoto N, Ninomiya T, Ogura T, Kato T. A multicenter single-arm phase II study of nab-paclitaxel/carboplatin for non-small cell lung cancer patients with interstitial lung disease. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy292.060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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