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Author

HARAGUCHI, Naoki and HARAGUCHI, Naoki

Abstract

This paper seeks to clarify the existence of heightened Taiwanese nationalism inherent in the work through a focus on the Japanese representation in “reconciliation.” In “Cape no. 7, ” which is structured as a backstage musical, music plays a driving role in the story. The combination of the leitmotivs of “1945” and “the Wild Rose” and the lyrics of “the Wild Rose” reveal the “reconciliation” between the Japanese teacher and Taiwanese Tomoko Kojima. While the theme of “1945” was replaced by “the Wild Rose” in a way that incorporated the musical characteristics of “1945, ” the overall arrangement of the music in the last sequence gave a repressive impression to “1945, ” and the Japanese teacherʼs thoughts were shown as part of “the Wild Rose.” On the other hand, “the Wild Rose” also has not lost any of its musical characteristics. As a result, “1945” has become something of a non-dominant representation of Japan, and rather than “reconciliation, ” there is subsumption, which means that a certain concept is subsumed into a higher concept. As a result, “Cape no. 7” shows not only reconciliation between ethnic groups, but also the subsumption of Japanese people. Considering the multiple motifs related to Japanʼs imperialist policies in the work and the origin of Taiwanese nationalism, it is thought that the heightened Taiwanese nationalism in “Cape no. 7” was brought about by the synergistic effect of the reconciliation of ethnic groups and the subsumption of Japanese people.

Published
2023

14. Effects of sturgeon fillet intake on top‐ranked Japanese female long‐distance runners.

Author

Haraguchi, Naoki, Nakao, Hiroyuki, Sakakibara, Yoichi, Tamura, Hiroki, Nagahama, Kiyoko, Sakurai, Keiko, Sameshima, Hiroshi, Schauerte, Michael, Ikenoue, Tsuyomu, and Katsuragi, Shinji

Subjects
*BIOMARKERS, *DOCOSAHEXAENOIC acid, *ENERGY metabolism, *STATISTICS, *BODY composition, *CLINICAL trials, *NUTRITIONAL assessment, *HEMATOCRIT, *FOOD consumption, *LONG-distance running, *SERUM, *CHEMILUMINESCENCE assay, *ANTHROPOMETRY, *IRON, *FERRITIN, *MUSCLE fatigue, *ACTIVITIES of daily living, *VISUAL analog scale, *IRON in the body, *OXIDATIVE stress, *PRE-tests & post-tests, *EICOSAPENTAENOIC acid, *VITAMIN D, *FISHES, *EXERCISE intensity, *IMMUNOENZYME technique, *DESCRIPTIVE statistics, *PLATELET count, *URINALYSIS, *BLOOD testing, *FRIEDMAN test (Statistics), *DATA analysis, *DATA analysis software, *ARACHIDONIC acid, *ERYTHROCYTES, *LONGITUDINAL method, *CREATININE, *VENOUS puncture
Abstract

Aims: The aim of this study is to investigate whether consumption of sturgeon fillets reduces the oxidative stress marker urinary 8‐hydroxy‐2′‐deoxyguanosine (8OHdG) in top‐ranked Japanese female long‐distance runners. Methods: In a before‐and‐after study, nine professional long‐distance female athletes ate 100 g/day of sturgeon fillets for 2 weeks. Urinalysis (8OHdG, an oxidative stress marker, and creatinine), blood tests (fatty acids and 25‐hydroxyvitamin D [25OHD]), exercise intensity, subjective fatigue, muscle elasticity, muscle mass, body fat mass, and nutritional intake using image‐based dietary assessment (IBDA) were compared before, immediately after, and 1 month after the intervention. Results: Consumption of sturgeon fillets suppressed 8OHdG (p < 0.05) in the increased exercise intensity female athletes. Eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and 25OHD levels in blood increased from before to immediately after and 1 month after the intervention (p < 0.05). IBDA showed that intake of n‐3 fatty acid increased after and one month after the intervention, whereas DHA, imidazole dipeptide and vitamin D intake increased after the intervention (p < 0.05) and then decreased after 1 month (p < 0.05). There were no significant changes in subjective fatigue, muscle elasticity, muscle mass, and body fat. Conclusions: The results suggest that eating sturgeon fillets during intense training may increase blood levels of EPA, DHA, and 25OHD, which may suppress urinary oxidative stress (8OHdG) in top‐ranked Japanese long‐distance runners. [ABSTRACT FROM AUTHOR]

Published
2023
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20. Active Consumption of Konjac and Konjac Products Improves Blood Glucose Control in Patients with Type 2 Diabetes Mellitus.

Author

Ueno, Hiroaki, Haraguchi, Naoki, Azuma, Mayumi, Shiiya, Tomomi, Noda, Tomoho, Ebihara, Emi, Uehira, Yudai, Uchida, Taisuke, Sasaba, Keiko, Nakamura, Miyo, Uchimura, Naho, Kita, Emiko, Umemura, Akemi, Nobe, Tomoko, Sumoto, Eri, Yano, Yui, and Nakazato, Masamitsu

Abstract

Konjac is a food mainly consumed in Asian countries with high fiber and low energy. Although glucomannan, a component of konjac, have been used for several clinical studies, there is few reports using konjac itself. This study examined the effects of the active consumption of konjac in patients with type 2 diabetes mellitus (T2DM). The study included 26 Japanese patients with T2DM. Participants were recommended to take konjac at least once a day using free konjac products (various noodles, rice, and desserts) and plate konjac for 12 weeks. HbA1c and fasting plasma glucose levels significantly decreased from 8.3 ± 0.9% to 8.0 ± 0.8% and from 173.2 ± 44.4 to 152.8 ± 36.7 mg/dL, respectively. No significant changes were observed in body weight and insulin resistance indices, but the index for insulin secretion significantly increased. Serum high molecular weight adiponectin levels significantly increased. Plasma ghrelin, leptin and glucagon-like peptide-1 levels tended to decrease (p = 0.084), decrease (p = 0.057) and increase (p = 0.071), respectively. Actual konjac intake positively correlated with age (r = 0.61, p = 0.001). Body weight and HbA1c significantly decreased in patients aged ≥50 years than in those aged <50 years, and the changes significantly inversely correlated with age. Active consumption of konjac and konjac products seems to be a useful dietary therapy with multifaceted action for T2DM. Further studies with greater sample size and long-term are needed to confirm these findings. [ABSTRACT FROM AUTHOR]

Published
2023
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21. Simple production of resilin‐like protein hydrogels using the Brevibacillus secretory expression system and column‐free purification.

Author

Homma, Toshimasa, Terui, Shu, Yokoyama, Fuki, Okino, Saki, Ohta, Sora, Kato, Chihiro, Haraguchi, Naoki, Fujisawa, Ikuhide, Itsuno, Shinichi, and Ang, Lily Zuin Ping

Abstract

Resilin, an insect structural protein, has excellent flexibility, photocrosslinking properties, and temperature responsiveness. Recombinant resilin‐like proteins (RLPs) can be fabricated into three‐dimensional (3D) structures for use as cell culture substrates and highly elastic materials. A simplified, high‐yielding production process for RLPs is required for their widespread application. This study proposes a simple production process combining extracellular expression using Brevibacillus choshinensis (B. choshinensis) and rapid column‐free purification. Extracellular production was tested using four representative signal peptides; B. choshinensis was found to efficiently secrete Rec1, an RLP derived from Drosophila melanogaster, regardless of the type of signal peptide. However, it was suggested that Rec1 is altered by an increase in the pH of the culture medium associated with prolonged incubation. Production in a jar fermentor with controllable pH yielded 530 mg Rec1 per liter of culture medium, which is superior to productivity using other hosts. The secreted Rec1 was purified from the culture supernatant via (NH4)2SO4 and ethanol precipitations, and the purified Rec1 was applied to ring‐shaped 3D hydrogels. These results indicate that the combination of secretory production using B. choshinensis and column‐free purification can accelerate the further application of RLPs. [ABSTRACT FROM AUTHOR]

Published
2023
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22. Active Consumption of Konjac and Konjac Products Improves Blood Glucose Control in Patients with Type 2 Diabetes Mellitus

Author

Ueno, Hiroaki, primary, Haraguchi, Naoki, additional, Azuma, Mayumi, additional, Shiiya, Tomomi, additional, Noda, Tomoho, additional, Ebihara, Emi, additional, Uehira, Yudai, additional, Uchida, Taisuke, additional, Sasaba, Keiko, additional, Nakamura, Miyo, additional, Uchimura, Naho, additional, Kita, Emiko, additional, Umemura, Akemi, additional, Nobe, Tomoko, additional, Sumoto, Eri, additional, Yano, Yui, additional, and Nakazato, Masamitsu, additional

Published
2021
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33. Avulsion fracture of the lateral ankle ligament complex in severe inversion injury: incidence and clinical outcome

Author

Haraguchi, Naoki, Toga, Hidekazu, Shiba, Nobumasa, and Kato, Fumio

Subjects
Avulsion fractures -- Diagnosis -- Care and treatment, Ankle -- Injuries, Sports injuries -- Diagnosis -- Care and treatment, Health, Sports and fitness, Diagnosis, Care and treatment
Abstract

Background: Avulsion fracture of the lateral ankle ligaments is often undetected on early radiographs. The epidemiology and treatment of such avulsion fractures have received much less attention than the epidemiology [...]

Published
2007

35. T1ρ Mapping of Subtalar Articular Cartilage in Patients with Ankle Osteoarthritis

Author

Maki, Yuhei, primary, Haraguchi, Naoki, additional, Asano, Kota, additional, Arimoto, Tatsuya, additional, Kano, Yosuke, additional, Mikami, Suguru, additional, Kimura, Satomi, additional, Fukumoto, Gaku, additional, Yamada, Takayuki, additional, Sato, Takuo, additional, Tsutaya, Atsushi, additional, Yoshida, Takashige, additional, Ota, Koki, additional, and Niki, Hisateru, additional

Published
2021
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37. Functionality of Porous Titanium Improved by Biopolymer Filling

Author

Niinomi, Mitsuo, primary, Nakai, Masaaki, additional, Akahori, Toshikazu, additional, Tsutsumi, Harumi, additional, Yamanoi, Hideaki, additional, Itsuno, Shinichi, additional, Haraguchi, Naoki, additional, Itoh, Yoshinori, additional, Ogasawara, Tadashi, additional, Onishi, Takashi, additional, and Shindoh, Taku, additional

Published
2009
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43. The Influence of Age on the Outcomes of Traumatic Brain Injury: Findings from a Japanese Nationwide Survey (J-ASPECT Study-Traumatic Brain Injury)

Author

Keitaro Yamagami, Ryota Kurogi, Ai Kurogi, Kunihiro Nishimura, Daisuke Onozuka, Nice Ren, Akiko Kada, Ataru Nishimura, Koichi Arimura, Keisuke Ido, Masahiro Mizoguchi, Tetsuya Sakamoto, Takamasa Kayama, Michiyasu Suzuki, Hajime Arai, Akihito Hagihara, Koji Iihara, Masayoshi Takigami, Kenji Kamiyama, Kiyohiro Houkin, Shougo Nishi, Tetsuyuki Yoshimoto, Sadao Kaneko, Koji Oka, Hiroshi Ooyama, Kyousuke Kamada, Kenichi Makino, Naoki Tokumitsu, Kazuhiro Sako, Susumu Suzuki, Nozomi Suzuki, Naoto Izumi, Kazumi Nitta, Masahumi Ootaki, Masanori Isobe, Mikio Nishiya, Takaaki Yamazaki, Syouji Mabuchi, Kuniaki Ogasawara, Naohiko Kubo, Yukihiko Shimizu, Keiichi Saito, Tatumi Yamanome, Atsuo Yoshino, Mitsuyuki Fujitsuka, Masaaki Takami, Hirotoshi Ohtaka, Teruyuki Hirano, Yosiaki Shiokawa, Takaharu Okada, Ichiro Suzuki, Michihiro Kohno, Jou Haraoka, Yoshinori Arai, Noriyoshi Kawamura, Akira Isoshima, Masaharu Yasue, Mitsuhiko Hokari Takayoshi Kobayashi, Kensuke Kawai, Taketoshi Maehara, Makoto Noguchi, Haruhiko Hoshino, Hirofumi Hiyama, Kensaku Yoshida, Osamu Utsugi, Yasuaki Takeda, Kouichi Tamaki, Hirohide Karasudani, Takao Urabe, Shiro Kobayashi, Michio Nakamura, Yorio Koguchi, Junichi Ono, Sumio Suda, Hiromu Hadeishi, Toshio Fukutake, Kenji Wakui, Hirokazu Tanno, Naoki Ishige, Takashi Ohasi, Hideki Sakai, Yasuaki Nishimura, Takayuki Watanabe, Takashi Matsumoto, Naoki Koketsu, Yuichi Hirose, Manabu Doyu, Toshinori Hasegawa, Naoto Kuwayama, Shinichi Terao, Nobuhiko Mizutani, Noriyuki Suzaki, Satoshi Okuda, Keizo Yasui, Yukio Seki, Yasuhiro Hasegawa, Akira Ikeda, Youtarou Takeuchi, Sigeki Ohara, Yoshio Araki, Toshihiko Wakabayashi, Hisashi Tanaka, Junpei Yoshimoto, Makoto Sugiura, Ogura Koichiro, Nozomu Kobayashi, Tomonori Yamada, Amami Kato, Ohtsuki Toshiho, Akatsuki Wakayama, Jun Takahashi, Hiroharu Kataoka, Toshiki Yoshimine, Yoshikazu Nakajima, Hidehuku Gi, Ryunosuke Uranishi, Yusaku Nakamura, Kazunori Yamanaka, Kazumi Ohmori, Hiroyuki Matsumoto, Yoshitugu Oiwa, Yosihiko Uemura, Hiroaki Fujiwara, Yoshiyasu Iwai, Masashi Morikawa, Kazuyuki Tane, Kazuo Hashikawa, Toshiyuki Fujinaka, Shunichi Yoneda, Kohsuke Yamashita, Masahiko Kitano, Shinsuke Tominaga, Kazuhito Nakamura, Katsuhiko Kono, Kenji Ohata, Hirokatsu Taniguchi, Takanori Hazama, Toshihiko Kuroiwa, Yoji Tamura, Kazusige Maeno, Motohiro Arai, Masaaki Iwase, Kenji Hashimoto, Keisuke Yamada, Takashi Turuno, Tsutomu Ichinose, Shinichiro Kurokawa, Takeshi Matsuyama, Toshiaki Fujita, Takamichi Yuguchi, Yoshihumi Teramoto, Hiroto Kakita, Takayuki Matsuo, Tsuyoshi Izumo, Nobutoshi Ryu, Wataru Haraguchi Naoki Kitagawa, Makio Kaminogo, Seisaburo Sakamoto, Yosiharu Tokunaga, Ei-Ichirou Urasaki, Junichi Kuratsu, Akira Takada, Tadashi Terasaki, Isao Fuwa Hisami Oosima, Shigeo Yamashiro, Makoto Yoshikawa Hiromasa Tsuiki, Kazunari Koga, Hiroshi Egami, Tadao Kawamura, Kunihiko Mitsuo, Takamitu Hikawa Masaki Morisige, Yuu Takeda, Yutaka Yamaguchi, Shiro Miyata Shunro Uchinokura, Tomokazu Goya, Hideo Takeshima, Kazutaka Yatsushiro, Hajime Ohta, Tatsui Nagadou, Kazuho Hirahara, Souichi Obara, Hiroshi Seto, Koiti Moroki, Kazunori Arita, Shogo Ishiuchi, Toshimitsu Uchihara, Susumu Mekaru, Tomoaki Nagamine, Naoki Tomiyama Jin Momoji, Kouzi Idomari Atusi Kimoto, Tsutomu Kadekaru, Hirosi Syamoto, Osamu Sasaki, Makoto Minagawa, Hideaki Takahashi, Kiyoshi Onda Hiroyuki Arai, Shigekazu Takeuchi, Hiroshi Abe, Osamu Fukuda, Mitsuo Kouno, Tetsuro Tamura, Yukio Horie Michiya Kubo, Hiroaki Hondo, Hisashi Takada, Toru Masuoka, Naoki Shirasaki, Hisashi Nitta, Makoto Kimura Yasuo Katsuki, Yutaka Hayashi Hisato Minamide, Shigeru Munemoto, Kiyonobu Ikeda, Mitsutoshi Nakada Yutaka Hayashi, Syuji Sato, Taketo Hatano, Osamu Yamamura, Masanori Kabuto, Takahiro Sakuma Jyunya Hayashi, Hiroyuki Kinouchi, Hidehito Koizumi, Syougo Imae, Manabu Fujita, Masakazu Suga, Shinji Iwata Kanehisa Kohno, Kiichiro Zenke, Mutsuo Fujisawa, Hikaru Mizobuchi, Satoru Hayashi, Masanori Morimoto, Tetsuya Ueba, Hiroyuki Nishimura, Naoki Ikawa, Yuzo Matsumoto, Seiji Kannuki, Masahiro Kagawa, Naoki Hayashi, Takashi Tamiya Atsushi Shindo, Kimihiro Yoshino, Tetsuya Masaoka, Ichiro Nakahara, Akira Nakamizo Satoshi Suzuki, Yuji Okamoto, Haruki Takahashi, Katsuyuki Hirakawa, Shinji Nagata, Akio Ookura, Hidenori Yoshida Yoshiro Kaneko, Hiroshi Nakane, Isao Inoue, Tsutomu Hitotsumatsu, Terukazu Kuramoto Kouichi Kuramoto, Yoshihisa Matumoto Hiromichi Ooishi, Tooru Inoue Masani Nonaka, Motohiro Morioka, Hiroshi Sugimori Shuji Sakata, Hiroshi Takashima, Shin-Ichiro Ishihara, Kenji Suzuyama, Masayuki Miyazono, Masafumi Morimoto Itaro Hattori, Satoshi Ozaki, Nobuo Hirota, Yasunori Takemoto Yasuhiko Mochimatsu, Makoto Takagi, Isao Yamamoto Kenji Nakayama, Yoshinori Uchida Hiroshi Tanaka, Katsumi Sakata, Kawahara Nobutaka, Motohiro Nomura, Hitoshi Ozawa, Kotaro Tsumura, Makoto Inaba Michiyuki Maruyama, Tatsuro Mori, Takahisa Mori, Masato Sugitani, Yuichiro Tanaka, Masaru Yamada, Mitsunori Matsumae, Keiichirou Onitsuka, Kosuke Miyahara Tatsuya Takahashi, Sumio Endou, Hidekazu Takahashi, Hiroyuki Kaidu, Akira Tsunoda Chikashi Maruki, Takamitsu Fujimaki, Hidetoshi Ooigawa, Masahiko Tanaka Masatsugu Uchida, Hiroshi Wanihuti Kouiti Katoh, Akio Hyodo, Ken Asakura, Shigeyoshi Nakajima, Takao Kanzawa, Hideyuki Kurihara, Sigehiro Ohmori, Mitsugi Yoshinao Hiroshi Kusunoki, Satoshi Magarisawa, Shinichi Okabe, Yuuji Kujiraoka, Shin Tsuruoka, Mikihiko Takeshita, Tetsuya Yamamoto Akira Matsumura, Kazuya Uemura, Hitoshi Tabata, Makoto Sonobe, Masashi Nakatsukasa Ryoji Yoshida, Norifumi Shimoeda, Hideo Kunimine, Masayuki Ishihara, Nozomu Murai, Nobukuni Murakami, Minoru Kidooka, Yoshihiro Iwamoto, Hiroshi Tenjin, Kouji Shiga Masahiko Takamasu, Nobuhito Mori, Shigeru Kose, Eiji Kohmura, Keigo Matsumoto, Takayuki Sakaki, Hiroji Miyake, Eiichiro Mabuchi, Masayuki Yokota, Hideyuki Ohnishi Yosihiro Kuga, Mitsuru Kimura, Osamu Narumi Masaaki Saiki, Norio Nakajima, Minoru Asahi, Junji Koyama, Shinya Noda, Junichi Iida, Toyohisa Fujita, Hiroyuki Nakase, Hidehiro Hirabayashi Toru Hoshida, Takayoshi Fujimoto, Naoyuki Nakao, Yoshiyuki Tanaka, Fuminori Ozaki, Yoshinari Nakamura, Kazuhito Miki, Takashi Watanabe, Seiko Hasegawa, Hiromu Konno, Atsuhito Takemura, Atsuya Okubo, Hitoshi Saito, Tatsuya Ishikawa Taizen Nakase, Hiroaki Shimizu Toshio Sasajima, Masayuki Sasou, Yoichi Watanabe, Taku Sato Kiyoshi Saito, Satoshi Taira Masahiro Satoh, Takayuki Koizumi, Yasuhiro Suzuki Shoji Mashiyama, Tomoyoshi Oikawa, Yukihiko Sonoda, Rei Kondo Shinjiro Saito, Atsuo Shinoda, Eiichiro Kamatsuka, Keiten So, Toshihiko Kinjo, Tooru Sasaki Kennji Itou, Hidenori Endo Hiroaki Shimizu, Hirosi Karibe, Kou Takahashi, Masayuki Nakajima, Kazuyoshi Watanabe, Motohiro Takayama, Taro Komuro, Hisao Hirai Fumio Suzuki, Hidenori Suzuki, Hiroto Murata, Fumitaka Miya, Kenji Kanamaru, Akira Tamura, Kiyoshi Harada, Seiji Fukazawa, Seiya Takehara, Yoshihiko Watanabe, Teiji Nakayama, Haruhiko Sato Hiroshi Nagura, Shinji Amano Chiharu Tanoi, Katsuhiro Kuroda, Satoru Morooka, Takafumi Wataya Masashi Kitagawa, Kazuo Koide, Tetsuya Tanigawara, Toru Iwama, Junki Ito, Shinji Noda, Kazuyuki Kouno, Kazuo Kitazawa, Yoshikazu Kusano Toshiki Takemae, Masanobu Hokama, Hiroki Sato Yoshihisa Nishiyama, Tatsuya Seguchi, Sumio Kobayashi Yoshihiko Inui, Youji Oohigashi, Shinsuke Muraoka, Masaki Miyatake, Kensuke Hayashida Nakagawa Shinichi, Atsushi Inoue, Keiichi Sakai, Shuhei Yamaguchi, Tatsuya Mizoue Fusao Ikawa, Gen Ishida Hideki Irie, Takato Kagawa, Yoichiro Namba, Hiroyuki Nakashima, Isao Date Koji Abe, Masaaki Uno, Masaki Chin Sen Yamagata, Hidemiti Sasayama Soitiro Takao, Hideyuki Yoshida Kouji Muneda, Akira Watanebe, Syouichi Katou, Yasuhiro Hamada, Takafumi Nishizaki, Katsuhiro Yamashita, Takaharu Nakamura Ryuji Nakamura, Shinichi Wakabayashi, Takahito Okazaki, Kaoru Kurisu, Masayasu Matsumoto, Atsushi Tominaga Katsuzo Kiya, Masaaki Shibukawa Syuichi Oki, Toshinori Nakahara, Shinji Okita, Tuyosi Torii, Minoru Nakagawa Kenjirou Fujiwara, Takashi Matsuoka Syuuhei Nishimura, Osamu Hamasaki Naoyuki Isobe, Junichiro Satomi Shinji Nagahiro, Masahito Agawa, Hirofumi Oka, Kunikazu Yoshimura, Tsutomu Kato, Nobuaki Kobayasi Satoshi Minoshima, Nobuhiro Mikuni, Rokuya Tanikawa, Jyunkou Sasaki, Yasunari Otawara, Teiji Tominaga, Tatsuya Sasaki, Sunao Takemura, Masahisa Kawakami, Satoshi Ihara, Yasushi Shibata, Takashi Saegusa, Toshihiko Iuchi, Chiaki Ito, Osamu Okuda, Kazunari Yoshida, Sadao Suga Masateru Katayama, Oikawa Akihiro, Naohisa Miura, Takahiro Ota, Toshihiro Kumabe, Sachio Suzuki, Takashi Kumagai, Keiichi Nishimaki, Kazuhiro Hongo, Hiroaki Shigeta, Kazuyoshi Hattori, Yoichi Uozumi, Norimoto Nakahara, Nobukazu Hashimoto, Shinichi Shirakami Shu Imai, Yoshinari Okumura, Ryo Tamaki Kazuhiro Yokoyama, Susumu Miyamoto, Kazuo Yamamoto, Tsugumichi Ichioka, Tsuyoshi Inoue, Manabu Kinoshita, Minoru Saitoh, Hideo Aihara, Hajimu Miyake, Kotaro Ogihara Tukasa Nishiura, Shigeki Nishino, Yasuyuki Miyoshi, Tadashi Arisawa, Shigeru Daido Shoji Tsuchimoto, Kimihisa Kinoshita, Kiyoshi Yuki Keisuke Migita, Keiichi Akatsuka, Hirosuke Fujisawa, Tadahisa Shono, Hitoshi Tsugu, Shuji Hayashi, Tatsuya Abe Toshio Matsushima, Susumu Nakashima, Takehisa Tuji, Akihiko Kaga, Reizou Kanemaru, Koji Takasaki, Junichi Imamura, Masahiro Noha, Saburo Watanabe, Nobuyuki Sakai, Yasuhisa Yoshida Hiroaki Minami, Tomoyoshi Okumura, Shinjitsu Nishimura, Shinichi Numazawa, Kiyoshi Kazekawa Masanori Tsutsumi, Kouzou Fukuyama, and Yasuhiro Fujimoto

Subjects
Adult, Male, medicine.medical_specialty, Adolescent, Databases, Factual, Traumatic brain injury, Nationwide survey, 03 medical and health sciences, Young Adult, 0302 clinical medicine, Level of consciousness, Japan, Surveys and Questionnaires, Epidemiology, Brain Injuries, Traumatic, medicine, Humans, Hospital Mortality, Child, Aged, Retrospective Studies, Aged, 80 and over, Univariate analysis, business.industry, Neurological status, Glasgow Coma Scale, Age Factors, Infant, Newborn, Infant, Odds ratio, Middle Aged, medicine.disease, Patient Discharge, 030220 oncology & carcinogenesis, Child, Preschool, Emergency medicine, Surgery, Female, Neurology (clinical), business, 030217 neurology & neurosurgery
Abstract

The epidemiology of patients with traumatic brain injury (TBI) has changed dramatically over recent decades as a result of rapid advances in aging societies. We assessed the influence of age on outcomes of patients with TBI and sought to identify prognostic factors for in-hospital mortality of TBI among elderly patients.Using a nationwide database, we analyzed data from 5651 patients with TBI. Univariate analysis was conducted to compare patient demographics, neurologic status on admission, radiologic findings, systemic complication rates, length of hospital stay, in-hospital mortality, and home discharge rates between elderly and nonelderly groups. Multivariable analysis was conducted to determine prognostic factors for in-hospital mortality among elderly patients.Overall in-hospital mortality was significantly higher in elderly patients (12.8% vs. 19.3%; P0.001). In-hospital mortality of elderly patients with mild TBI increased significantly at7 days after admission, whereas that of elderly patients with moderate or severe TBI was significantly higher immediately after admission. Age (odds ratio [OR], 1.62; P = 0.024), male sex (OR, 1.30; P = 0.004), Japan Coma Scale score on admission (OR, 5.95, P0.001), and incidence of acute subdural hematoma (OR, 1.89; P0.001) were associated with in-hospital mortality in elderly patients with TBI.Elderly patients with TBI showed significantly higher in-hospital mortality. Delayed increases in in-hospital mortality were observed among elderly patients with mild TBI. Level of consciousness on admission was the strongest predictor of in-hospital mortality among elderly patients.

Published
2019

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