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Your search keyword '"Kodama, Masaaki"' showing total 482 results
Start Over Author "Kodama, Masaaki" Publication Type Academic Journals
482 results on '"Kodama, Masaaki"'

1. Characterization of residual cancer by comparison of a pair of organoids established from a patient with esophageal squamous cell carcinoma before and after neoadjuvant chemotherapy

Author

Fuchino, Takafumi, Kurogi, Shusaku, Tsukamoto, Yoshiyuki, Shibata, Tomotaka, Fumoto, Shoichi, Fujishima, Hajime, Kinoshita, Keisuke, Hirashita, Yuka, Fukuda, Masahide, Nakada, Chisato, Itai, Yusuke, Suzuki, Kosuke, Uchida, Tomohisa, Shiroshita, Hidefumi, Matsumoto, Takashi, Yamaoka, Yoshio, Tsutsumi, Koshiro, Fukuda, Kensuke, Ogawa, Ryo, Mizukami, Kazuhiro, Kodama, Masaaki, Inomata, Masafumi, Murakami, Kazunari, Moriyama, Masatsugu, and Hijiya, Naoki

Published
2024
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4. Efficient Establishment of Bile-Derived Organoids From Biliary Cancer Patients

Author

Kinoshita, Keisuke, Tsukamoto, Yoshiyuki, Hirashita, Yuka, Fuchino, Takafumi, Kurogi, Shusaku, Uchida, Tomohisa, Nakada, Chisato, Matsumoto, Takashi, Okamoto, Kazuhisa, Motomura, Mitsuteru, Fukuchi, Satoshi, Sagami, Ryota, Nagai, Takayuki, Gotoh, Yasuhiko, Fukuda, Kensuke, Ogawa, Ryo, Mizukami, Kazuhiro, Okimoto, Tadayoshi, Kodama, Masaaki, Murakami, Kazunari, Moriyama, Masatsugu, and Hijiya, Naoki

Published
2023
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7. Potential association of eEF1A dimethylation at lysine 55 in the basal area of Helicobacter pylori-eradicated gastric mucosa with the risk of gastric cancer: a retrospective observational study

Author

Hirashita, Yuka, Fukuda, Masahide, Kodama, Masaaki, Tsukamoto, Yoshiyuki, Okimoto, Tadayoshi, Mizukami, Kazuhiro, Kawahara, Yoshinari, Wada, Yasuhiro, Ozaka, Sotaro, Togo, Kazumi, Kinoshita, Keisuke, Fuchino, Takafumi, Fukuda, Kensuke, Okamoto, Kazuhisa, Ogawa, Ryo, Matsunari, Osamu, Honda, Koichi, and Murakami, Kazunari

Published
2022
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8. A rare case of leiomyosarcoma with a pleomorphic component of the sigmoid colon.

Author

Omameuda, Takahiko, Koizumi, Masaru, Miyahara, Yuzo, Kitabayashi, Hiroyuki, Shiozawa, Mikio, Kondo, Satoru, Kawai, Shigeo, and Kodama, Masaaki

Subjects
FECAL occult blood tests, SIGMOID colon, SURGICAL diagnosis, CANCER diagnosis, DIAGNOSTIC imaging
Abstract

A 66-year-old man presented to our institution with a positive fecal occult blood test and lower abdominal pain. Although a tumor was found in the sigmoid colon, biopsy and imaging studies failed to enable the diagnosis of the cancer, and the patient underwent surgery for treatment and diagnosis. The tumor had two distinct areas with differing features shown both histopathologically and on imaging; it was thus diagnosed as a leiomyosarcoma of the sigmoid colon with a pleomorphic component. Here, we describe a rare case of leiomyosarcoma of the sigmoid colon with a pleomorphic component. There are no reports of leiomyosarcoma with pleomorphic components arising in the colon in the literature; thus, the recurrence and metastatic characteristics are unknown. Therefore, accumulating cases in the literature may provide valuable insights into diagnosing and treating these rare tumors. [ABSTRACT FROM AUTHOR]

Published
2024
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9. Early response in phosphorylation of ribosomal protein S6 is associated with sensitivity to trametinib in colorectal cancer cells

Author

Hirashita, Yuka, Tsukamoto, Yoshiyuki, Kudo, Yoko, Kakisako, Daisuke, Kurogi, Shusaku, Hijiya, Naoki, Nakada, Chisato, Uchida, Tomohisa, Hirashita, Teijiro, Hiratsuka, Takahiro, Akagi, Tomonori, Ueda, Yoshitake, Shiroshita, Hidefumi, Etoh, Tsuyoshi, Mizukami, Kazuhiro, Honda, Koichi, Okimoto, Tadayoshi, Kodama, Masaaki, Inomata, Masafumi, Moriyama, Masatsugu, and Murakami, Kazunari

Published
2021
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13. Multicenter study of invasive gastric cancer detected after 10 years of Helicobacter pylori eradication in Japan: Clinical, endoscopic, and histopathologic characteristics.

Author

Kobayashi, Masaaki, Fujisaki, Junko, Namikawa, Ken, Hoteya, Shu, Sasaki, Akiko, Shibagaki, Kotaro, Yao, Kenshi, Abe, Seiichiro, Oda, Ichiro, Ueyama, Hiroya, Isomoto, Hajime, Ito, Masanori, Sugimoto, Mitsushige, Kawai, Takashi, Kodama, Masaaki, Murakami, Kazunari, Adachi, Kyoichi, Matsuhashi, Nobuyuki, Ohata, Ken, and Ushijima, Toshikazu

Published
2024
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17. Functional evaluation of swallowing in patients with tongue cancer before and after surgery using high-speed continuous magnetic resonance imaging based on T2-weighted sequences

Author

Nishimura, Shun, Tanaka, Tatsurou, Oda, Masafumi, Habu, Manabu, Kodama, Masaaki, Yoshiga, Daigo, Osawa, Kenji, Kokuryo, Shinya, Miyamoto, Ikuya, Kito, Shinji, Wakasugi-Sato, Nao, Matsumoto-Takeda, Shinobu, Joujima, Takaaki, Miyamura, Yuichi, Hitomi, Suzuro, Yamamoto, Noriaki, Uehara, Masataka, Sasaguri, Masaaki, Ono, Kentaro, Yoshioka, Izumi, Tominaga, Kazuhiro, and Morimoto, Yasuhiro

Published
2018
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18. Usefulness of AI-Equipped Endoscopy for Detecting Colorectal Adenoma during Colonoscopy Screening: Confirm That Colon Neoplasm Finely Can Be Identified by AI without Overlooking Study (Confidential Study).

Author

Mizukami, Kazuhiro, Fushimi, Erina, Sagami, Ryota, Abe, Takashi, Sato, Takao, Terashi, Shohei, Fukuda, Masahide, Nishikiori, Hidefumi, Nagai, Takayuki, Kodama, Masaaki, and Murakami, Kazunari

Subjects
COLON tumors, VIRTUAL colonoscopy, COMPUTER-aided diagnosis, ADENOMA, COLONOSCOPY, ENDOSCOPY
Abstract

In the present prospective case series study, we investigated the lesion-detection ability of an AI-equipped colonoscopy as an addition to colonoscopy (CS) screening. Participants were 100 patients aged ≥20 years who had not undergone CS at the study site in the last 3 years and passed the exclusion criteria. CS procedures were conducted using conventional white light imaging and computer-aided detection (CADe). Adenoma detection rate (ADR; number of individuals with at least one adenoma detected) was compared between the conventional group and the CADe group. Of the 170 lesions identified, the ADR of the CADe group was significantly higher than the ADR of the conventional group (69% vs. 61%, p = 0.008). For the expert endoscopists, although ADR did not differ significantly, the mean number of detected adenomas per procedure (MAP) was significantly higher in the CADe group than in the conventional group (1.7 vs. 1.45, p = 0.034). For non-expert endoscopists, ADR and MAP were significantly higher in the CADe group than in the conventional group (ADR 69.5% vs. 56.6%, p = 0.016; MAP 1.66 vs. 1.11, p < 0.001). These results indicate that the CADe function in CS screening has a positive effect on adenoma detection, especially for non-experts. [ABSTRACT FROM AUTHOR]

Published
2023
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20. Multiple mandibular static bone depressions attached to the three major salivary glands

Author

Nishimura, Shun, Osawa, Kenji, Tanaka, Tatsurou, Imamura, Yoshiharu, Kokuryo, Shinya, Habu, Manabu, Jyoujima, Takaaki, Miyamura, Yuichi, Mochida, Ken-ichi, Inoue, Tomoki, Kito, Shinji, Wakasugi-Sato, Nao, Matsumoto-Takeda, Shinobu, Oda, Masafumi, Yoshiga, Daigo, Kodama, Masaaki, Sasaguri, Masaaki, Tominaga, Kazuhiro, Yoshioka, Izumi, and Morimoto, Yasuhiro

Published
2018
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22. A spatial association between odontomas and the gubernaculum tracts

Author

Oda, Masafumi, Miyamoto, Ikuya, Nishida, Ikuko, Tanaka, Tatsurou, Kito, Shinji, Seta, Yuji, Yada, Naomi, Saeki, Katsura, Matsumoto-Takeda, Shinobu, Wakasugi-Sato, Nao, Habu, Manabu, Kodama, Masaaki, Kokuryo, Shinya, Nishimura, Shun, Matsuo, Kou, Tominaga, Kazuhiro, Yoshioka, Izumi, Maki, Kenshi, and Morimoto, Yasuhiro

Published
2016
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23. Detection and imaging characteristics of the gubernacular tract in children on cone beam and multidetector computed tomography

Author

Nishida, Ikuko, Oda, Masafumi, Tanaka, Tatsurou, Kito, Shinji, Seta, Yuji, Yada, Naomi, Fujita, Yuko, Saeki, Katsura, Morikawa, Kazumasa, Matsumoto-Takeda, Shinobu, Wakasugi-Sato, Nao, Habu, Manabu, Kodama, Masaaki, Miyamoto, Ikuya, Kokuryo, Shinya, Nishimura, Shun, Matsuo, Kou, Tominaga, Kazuhiro, Yoshioka, Izumi, Maki, Kenshi, and Morimoto, Yasuhiro

Published
2015
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24. Basic and important points regarding the diagnosis of oral cancers using fluorine-18-labeled fluoro-2-deoxy-d-glucose positron emission tomography–computed tomography: a review

Author

Kito, Shinji, Koga, Hirofumi, Oda, Masafumi, Tanaka, Tatsurou, Kodama, Masaaki, Habu, Manabu, Miyamoto, Ikuya, Kokuryo, Shinya, Yamamoto, Noriaki, Wakasugi-Sato, Nao, Matsumoto-Takeda, Shinobu, Yoshiga, Daigo, Osawa, Kenji, Nishimura, Shun, Joujima, Takaaki, Mochida, Ken-ichi, Kawanabe, Noriaki, Matsuo, Kou, Uehara, Masataka, Sasaguri, Masaaki, Yoshioka, Izumi, Tominaga, Kazuhiro, and Morimoto, Yasuhiro

Published
2017
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29. Reflection of 18F-FDG accumulation in the evaluation of the extent of periapical or periodontal inflammation

Author

Kito, Shinji, Koga, Hirofumi, Kodama, Masaaki, Yamamoto, Noriaki, Kokuryo, Shinya, Habu, Manabu, Matsuo, Kou, Nishino, Takanobu, Kubota, Kohzoh, Muraoka, Kosuke, Oda, Masafumi, Wakasugi-Sato, Nao, Matsumoto-Takeda, Shinobu, Seta, Yuji, Tanaka, Tatsurou, Miyamoto, Ikuya, Yamashita, Yoshihiro, Kitamura, Chiaki, Nakashima, Keisuke, Takahashi, Tetsu, Tominaga, Kazuhiro, and Morimoto, Yasuhiro

Published
2012
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30. Differences in clinical features and morphology between differentiated and undifferentiated gastric cancer after Helicobacter pylori eradication.

Author

Kodama, Masaaki, Mizukami, Kazuhiro, Hirashita, Yuka, Okimoto, Tadayoshi, Wada, Yasuhiro, Fukuda, Masahide, Ozaka, Sotaro, Kudo, Yoko, Ito, Kanako, Ogawa, Ryo, Okamoto, Kazuhisa, Fukuda, Kensuke, and Murakami, Kazunari

Subjects
*HELICOBACTER pylori, *STOMACH cancer, *ODDS ratio, *MULTIVARIATE analysis, *MORPHOLOGY
Abstract

Background/Aims: Although undifferentiated gastric cancer (UGC) diagnosed after Helicobacter pylori eradication (HPE) carries a poor prognosis, characteristics of post-HPE UGC have not been evaluated in detail because of its low incidence. Therefore, we compared the clinicopathologic characteristics of UGC and differentiated gastric cancers (DGC) diagnosed after successful HPE. Methods: GC lesions from patients who had successfully completed HPE and who had undergone upper gastrointestinal endoscopy between January 2004 and March 2016 were analyzed. Tumors were divided into DGC and UGC groups. Clinicopathologic factors of background and tumor characteristics were compared using univariate and multiple logistic analyses. Results: A total of 129 tumors from 115 patients were evaluated; 113 tumors were in the DGC group and 16 in the UGC group. Depressed-type tumors (P = 0.024) and sub-submucosal invasion (P<0.001) were significantly higher in the UGC group. The UGC group had larger tumor diameters (25.9±7.3 mm) than the DGC group (13.2±10.2 mm) (P<0.001). Multivariate analysis showed that female sex (odds ratio [OR] 3.24, 95%CI:1.02–10.37; P = 0.047) and absent follow-up (OR 4.99, 95%CI:1.60–15.57; P = 0.006) were significant independent risk factors for UGC. The DGC group showed a gradually decreasing temporal trend by trend test (P = 0.015), while the UGC group showed a relatively constant incidence over time, although the number of cases was small. Conclusion: UGC was diagnosed even after long time spans following HPE, although the number of cases was small. Female sex, and especially absent follow-up, were risks for post-HPE UGC, suggesting that diligent long-term follow-up after HPE is essential. [ABSTRACT FROM AUTHOR]

Published
2023
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31. Magnetic resonance angiography with fresh blood imaging for identification of hemangiomas and blood vessels around hemangiomas in oral and maxillofacial regions

Author

Oda, Masafumi, Tanaka, Tatsurou, Kito, Shinji, Matsumoto-Takeda, Shinobu, Otsuka, Kozue, Hayashi, Yuki, Wakasugi-Sato, Nao, Yoshioka, Izumi, Habu, Manabu, Kokuryo, Shinya, Kodama, Masaaki, Nogami, Shinnosuke, Miyamoto, Ikuya, Yamamoto, Noriaki, Ishikawa, Ayataka, Zhang, Min, Matsuo, Kou, Shiiba, Shunji, Seta, Yuji, Yamashita, Yoshihiro, Takahashi, Tetsu, Tominaga, Kazuhiro, and Morimoto, Yasuhiro

Published
2012
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33. Noninvasive identification of peripheral vessels of oral and maxillofacial regions by using electrocardiography-triggered three-dimensional fast asymmetric spin-echo sequences

Author

Tanaka, Tatsurou, Oda, Masafumi, Kito, Shinji, Wakasugi-Sato, Nao, Matsumoto-Takeda, Shinobu, Otsuka, Kozue, Yoshioka, Izumi, Habu, Manabu, Kokuryo, Shinya, Kodama, Masaaki, Nogami, Shinnosuke, Miyamoto, Ikuya, Yamamoto, Noriaki, Ishikawa, Ayataka, Matsuo, Kou, Shiiba, Shunji, Seta, Yuji, Yamashita, Yoshihiro, Takahashi, Tetsu, Tominaga, Kazuhiro, and Morimoto, Yasuhiro

Published
2011
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34. Multi-center randomized controlled study to establish the standard third-line regimen for Helicobacter pylori eradication in Japan

Author

Murakami, Kazunari, Furuta, Takahisa, Ando, Takashi, Nakajima, Takeshi, Inui, Yoshikatsu, Oshima, Tadayuki, Tomita, Toshihiko, Mabe, Katsuhiro, Sasaki, Makoto, Suganuma, Takanori, Nomura, Hideyuki, Satoh, Kiichi, Hori, Shinichiro, Inoue, Syuuji, Tomokane, Takeshi, Kudo, Mineo, Inaba, Tomoki, Take, Susumu, Ohkusa, Toshifumi, Yamamoto, Shojiro, Mizuno, Shigeaki, Kamoshida, Toshiro, Amagai, Kenji, Iwamoto, Junichi, Miwa, Jun, Kodama, Masaaki, Okimoto, Tadayoshi, Kato, Mototsugu, Asaka, Masahiro, and For the Japan GAST Study Group.

Published
2013
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35. Clinical significance of ultrasonographic examination including detection of thyroid gland diseases when surveying cervical lymph nodes in subjects with oral squamous cell carcinoma

Author

Wakasugi-Sato, Nao, Wakasugi, Tetsuro, Oda, Masafumi, Yamashita, Yoshihiro, Yoshioka, Izumi, Yamamoto, Noriaki, Habu, Manabu, Kodama, Masaaki, Kokuryo, Shinya, Ichimiya, Hisashi, Miyamoto, Ikuya, Tanaka, Tatsurou, Kito, Shinji, Matsumoto-Takeda, Shinobu, Ishikawa, Ayataka, Seta, Yuji, Matsuo, Kou, Takahashi, Tetsu, Tominaga, Kazuhiro, and Morimoto, Yasuhiro

Published
2010
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36. Relationship Between Inferior Alveolar Nerve Canal Position at Mandibular Second Molar in Patients With Prognathism and Possible Occurrence of Neurosensory Disturbance After Sagittal Split Ramus Osteotomy

Author

Yoshioka, Izumi, Tanaka, Tatsurou, Khanal, Amit, Habu, Manabu, Kito, Shinji, Kodama, Masaaki, Oda, Masafumi, Wakasugi-Sato, Nao, Matsumoto-Takeda, Shinobu, Fukai, Yasuhiro, Tokitsu, Takatoshi, Tomikawa, Megumi, Seta, Yuji, Tominaga, Kazuhiro, and Morimoto, Yasuhiro

Published
2010
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38. Significance of Dynamic Magnetic Resonance Sialography in Prognostic Evaluation of Saline Solution Irrigation of the Parotid Gland for the Treatment of Xerostomia

Author

Habu, Manabu, Tanaka, Tatsuro, Tomoyose, Taiki, Ono, Kentaro, Anzai, Toshihiro, Ozaki, Yuu, Yoshioka, Izumi, Yamashita, Yoshihiro, Kodama, Masaaki, Yamamoto, Noriaki, Oda, Masufumi, Wakasugi, Nao, Matsumoto, Shinobu, Takahashi, Tetsu, Inenaga, Kiyotoshi, Tominaga, Kazuhiro, and Morimoto, Yasuhiro

Published
2010
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40. A phase I study to evaluate safety, pharmacokinetics, and pharmacodynamics of respiratory syncytial virus neutralizing monoclonal antibody MK‐1654 in healthy Japanese adults.

Author

Orito, Yuji, Otani, Naoyuki, Matsumoto, Yuki, Fujimoto, Katsukuni, Oshima, Nobuyuki, Maas, Brian M., Caro, Luzelena, Aliprantis, Antonios O., Cox, Kara S., Tokumaru, Osamu, Kodama, Masaaki, Kudo, Hideo, Imai, Hiromitsu, and Uemura, Naoto

Subjects
JAPANESE people, RESPIRATORY syncytial virus, PHARMACOKINETICS, PHARMACODYNAMICS, MONOCLONAL antibodies, RESPIRATORY infections, INFANT diseases
Abstract

Respiratory syncytial virus (RSV) is the leading cause of lower respiratory tract infection among all infants worldwide and remains a significant cause of morbidity and mortality. To address this unmet medical need, MK‐1654, a half‐life extended RSV neutralizing monoclonal antibody, is in clinical development for the prevention of RSV disease in infants. This was a phase I, randomized, placebo‐controlled, single‐site, double‐blind trial of MK‐1654 in 44 healthy Japanese adults. The safety, tolerability, pharmacokinetics, antidrug antibodies (ADAs), and serum neutralizing antibody (SNA) titers against RSV were evaluated for 1 year after a single intramuscular (i.m.) or intravenous (i.v.) dose of MK‐1654 or placebo in five groups (100 mg i.m., 300 mg i.m., 300 mg i.v., 1000 mg i.v., or placebo). MK‐1654 was generally well‐tolerated in Japanese adults. There were no serious drug‐related adverse events (AEs) reported in any MK‐1654 recipient and no discontinuations due to any AEs in the study. The half‐life of MK‐1654 ranged from 76 to 91 days across dosing groups. Estimated bioavailability was 86% for 100 mg i.m. and 77% for 300 mg i.m. One participant out of 33 (3.0%) developed detectable ADA with no apparent associated AEs. The RSV SNA titers increased in a dose‐dependent manner among participants who received MK‐1654. These data support the development of MK‐1654 for use in Japanese infants. [ABSTRACT FROM AUTHOR]

Published
2022
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