start-ver=1.4
cd-journal=joma
no-vol=47
cd-vols=
no-issue=3
article-no=
start-page=281
end-page=288
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2019
dt-pub=20191119
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Association of masticatory muscle activity with sleep arousal and other concomitant movements during sleep
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=OBJECTIVE:
This study aims to verify the associations among sleep bruxism (SB), sleep arousal (SA) and concurrent body movements.
MATERIAL AND METHODS:
Subjects underwent a standard overnight polysomnography test and audio-video recordings. Sleep quality was evaluated according to the Rechtschaffen and Kales criteria, while SA was determined as per the American Sleep Disorders Association criteria. Analyses were performed by an external institution after masking of the subjects' information. SB was assessed based on the presence/absence of rhythmic masticatory muscle activity (RMMA) episodes, which were identified by using electromyography of the masseter muscle. The observed simultaneous movements included lower leg movement (LLM), swallowing, face scratching, head movement, body movement, eye blinking, coughing, licking, sighing, body scratching, lip sucking, somniloquy and yawning. The LLM was determined visually, as well as through an increase in the tibialis electromyogram signal. Other movements were visually assessed using audio-video recordings. The incidences of all the simultaneous movements were compared between RMMA with intercurrent SA (SAwRMMA; RMMA episode derived from a masseter electromyogram showing more than 10% of maximum voluntary contraction) and SA without RMMA (SAw/oRMMA).
RESULTS:
Fourteen subjects were included in this study (females/males: 4/10, mean age: 31.5 } 5.7 years). Among these, LLM, swallowing, body movement, licking, body scratching and lip sucking were frequently observed in SAwRMMA episodes than in SAw/oRMMA episodes, significantly. However, the non-specific simultaneous movements were higher observed in SAw/oRMMA episodes than that in SAwRMMA.
CONCLUSION:
Our results suggest that SB is concurrently activated with LLM in relation to arousal.
en-copyright=
kn-copyright=
en-aut-name=MikiHaruna
en-aut-sei=Miki
en-aut-mei=Haruna
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=MinakuchiHajime
en-aut-sei=Minakuchi
en-aut-mei=Hajime
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=MiyagiMayu
en-aut-sei=Miyagi
en-aut-mei=Mayu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=HaraEmilio Satoshi
en-aut-sei=Hara
en-aut-mei=Emilio Satoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=ShigemotoShuji
en-aut-sei=Shigemoto
en-aut-mei=Shuji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=SuzukiYoshitaka
en-aut-sei=Suzuki
en-aut-mei=Yoshitaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=MaekawaKenji
en-aut-sei=Maekawa
en-aut-mei=Kenji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=MatsukaYoshizo
en-aut-sei=Matsuka
en-aut-mei=Yoshizo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=ClarkGlenn T.
en-aut-sei=Clark
en-aut-mei=Glenn T.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=KubokiTakuo
en-aut-sei=Kuboki
en-aut-mei=Takuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
affil-num=1
en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=2
en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=3
en-affil=Department of Stomatgnathic Function and Occlusal Reconstruction, Institute of Biomedical Sciences, Clinical Dentistry, Tokushima University Graduate School
kn-affil=
affil-num=4
en-affil=Department of Biomaterials, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=5
en-affil=Department of Fixed Prosthodontics, School of Dental Medicine, Tsurumi University
kn-affil=
affil-num=6
en-affil=Department of Stomatgnathic Function and Occlusal Reconstruction, Institute of Biomedical Sciences, Clinical Dentistry, Tokushima University Graduate School
kn-affil=
affil-num=7
en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=8
en-affil=Department of Stomatgnathic Function and Occlusal Reconstruction, Institute of Biomedical Sciences, Clinical Dentistry, Tokushima University Graduate School
kn-affil=
affil-num=9
en-affil=Advanced Program in Orofacial Pain and Oral Medicine, Ostrow School of Dentistry, University of Southern California
kn-affil=
affil-num=10
en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
en-keyword=concomitant movement
kn-keyword=concomitant movement
en-keyword=non-specific simultaneous movements
kn-keyword=non-specific simultaneous movements
en-keyword=polysomnography assessment
kn-keyword=polysomnography assessment
en-keyword=rhythmic masticatory muscle activity
kn-keyword=rhythmic masticatory muscle activity
en-keyword=sleep arousal
kn-keyword=sleep arousal
en-keyword=sleep bruxism
kn-keyword=sleep bruxism
END
start-ver=1.4
cd-journal=joma
no-vol=57
cd-vols=
no-issue=
article-no=
start-page=404
end-page=413
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2017
dt-pub=201705
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Biocompatible nanostructured solid adhesives for biological soft tissues
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= Over the past few years, the development of novel adhesives for biological soft tissue adhesion has gained significant interest. Such adhesives should be non-toxic and biocompatible. In this study, we synthesized a novel solid adhesive using nanostructured hydroxyapatite (HAp) and evaluated its physical adhesion properties through in vitro testing with synthetic hydrogels and mouse soft tissues. The results revealed that HAp-nanoparticle dispersions and HAp-nanoparticle-assembled nanoporous plates showed efficient adhesion to hydrogels. Interestingly, the HAp plates showed different adhesive properties depending upon the shape of their nanoparticles. The HAp plate made up of 17 nm-sized nanoparticles showed an adhesive strength 2.2 times higher than that of the conventional fibrin glue for mouse skin tissues.
en-copyright=
kn-copyright=
en-aut-name=OkadaMasahiro
en-aut-sei=Okada
en-aut-mei=Masahiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=NakaiAkira
en-aut-sei=Nakai
en-aut-mei=Akira
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=Hara EmilioSatoshi
en-aut-sei=Hara Emilio
en-aut-mei=Satoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=TaguchiTetsushi
en-aut-sei=Taguchi
en-aut-mei=Tetsushi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=NakanoTakayoshi
en-aut-sei=Nakano
en-aut-mei=Takayoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=MatsumotoTakuya
en-aut-sei=Matsumoto
en-aut-mei=Takuya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
affil-num=1
en-affil=Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=2
en-affil=Department of Biomaterials, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=4
en-affil=Polymeric Biomaterials Group, RCFM, National Institute for Materials Science
kn-affil=
affil-num=5
en-affil=Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
kn-affil=
affil-num=6
en-affil=Department of Biomaterials, Okayama University
kn-affil=
en-keyword=Hydroxyapatite
kn-keyword=Hydroxyapatite
en-keyword=Nanoparticle
kn-keyword=Nanoparticle
en-keyword=Solid adhesive
kn-keyword=Solid adhesive
en-keyword=Wet adhesion
kn-keyword=Wet adhesion
END