Research Areas
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Pigmentation disorders
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Albinism
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vitiligo
External Career
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Yamagata University, Assistant Professor, 2022.01 -
Academic Society Affiliations
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Japanese Dermatological Association
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Japanese Dermatological Association
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Japanese Society for Pigment Cell Research
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Japanese Society for Pigment Cell Research
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Japanese Society for Investigate Dermatology
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The Japanese Society for Investigative Dermatology
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Society for Investigate Dermatology
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Society for Investigative Dermatology
Papers
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特集 遺伝性皮膚疾患-診断と治療の現在地- 遺伝性色素異常症の病態に基づく診断, 皮膚科, 9(2) 147-154, 2026.02
齊藤 亨, 岡村 賢
Single Author
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A Hairless Mouse Model for Vitiligo: Enhancing Preclinical Therapeutic Evaluation, JOURNAL OF INVESTIGATIVE DERMATOLOGY, 146(2) 374-382.e4, 2026.02
Okamura, K; Arai, Y; Kawaguchi, J; Tsukada, S; Nakamura, A; Abe, Y; Fukuda, K; Harris, JE; Suzuki, T
Single Author
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Genetic Pigmentary Disorders: From Molecular Mechanisms to Clinical Manifestations, JOURNAL OF DERMATOLOGY, 53(2) 169-179, 2026.02
Okamura, K; Suzuki, T
Single Author
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特集 色素異常の多種多様 総説1 先天性および後天性の色素低下型色素異常症, 皮膚病診療, 47(12) 1044-1051, 2025.12
岡村 賢
Single Author
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A Non-targeted Proteomics Newborn Screening Platform for Inborn Errors of Immunity, JOURNAL OF CLINICAL IMMUNOLOGY, 45(1) 33, 2025.12
Shibata, H; Nakajima, D; Konno, R; Hijikata, A; Higashiguchi, M; Nihira, H; Shimodera, S; Miyamoto, T; Nishitani-Isa, M; Hiejima, E; Izawa, K; Takita, J; Heike, T; Okamura, K; Ohnishi, H; Ishimura, M;...
Single Author
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特集 白斑の病態と最新の治療 尋常性白斑の評価, 皮膚科, 8(5) 328-334, 2025.11
岡村 賢
Single Author
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Deep intronic variant in<i> TYR</i> causes OCA1A in Japanese families through pseudoexon activation, JOURNAL OF DERMATOLOGICAL SCIENCE, 120(2) 77-79, 2025.11
Okamura, K; Saito, T; Ohori, S; Takada, F; Nomura, T; Oba, E; Hozumi, Y; Suzuki, T
Single Author
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Updated Analysis of Albinism in Japan: 290 Families With Novel Pathological Variants, PIGMENT CELL & MELANOMA RESEARCH, 38(6) e70066, 2025.11
Okamura, K; Saito, T; Oiso, N; Sekiguchi, A; Motegi, S; Hara, Y; Komine, M; Kudo, K; Noguchi, A; Oshimo, T; Shibuya, M; Miyano, K; Hoshina, T; Itokawa, M; Masui, Y; Otaki, K; Hozumi, Y; Suzuki, T
Single Author
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A Case of Metastasis of Giant Basal Cell Carcinoma in Oculocutaneous Albinism (vol 52, pg e43, 2025), JOURNAL OF DERMATOLOGY, 52(10) 1612, 2025.10
Matsuo, M; Okamura, K; Saito, T; Suzuki, T; Niwa, H; Iwata, H
Single Author
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Albumin-binding dendritic siRNA improves delivery and efficacy to solid tumors in a melanoma model, MOLECULAR THERAPY NUCLEIC ACIDS, 36(3) 102579, 2025.09
Fakih, HH; Tang, Q; Summers, A; Gross, KY; Rachid, MO; Okamura, K; Martinez, N; Sleiman, HF; Harris, JE; Khvorova, A
Single Author
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Complete response to nivolumab in a patient with HPV-associated squamous cell carcinoma of the anus: the predictive value of tumour-infiltrating CD8<SUP>+</SUP>PD-1<SUP>+</SUP> T cells, EUROPEAN JOURNAL OF DERMATOLOGY, 35(5) 408-409, 2025.09
Murooka, T; Okamura, K; Kabasawa, T; Saito, T; Hemmi, A; Kawaguchi, J; Suzuki, T
Single Author
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Salivary metabolomics for skin cancer screening, JOURNAL OF DERMATOLOGICAL SCIENCE, 119(2) 90-96, 2025.08
Hayashi, M; Ishikawa, S; Sugimoto, M; Okuyama, N; Edamatsu, K; Yusa, K; Hemmi, T; Konno, T; Okamura, K; Araki, Y; Nikaido, M; Yaguchi, Y; Saito, T; Nakano, S; Hemmi, A; Hozumi, Y; Suzuki, T
Single Author
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Wound, pressure ulcer, and burn guidelines (2023)―4: Guidelines for the management of connective tissue disease/vasculitis-associated skin ulcers, third edition, JOURNAL OF DERMATOLOGY, 52(6) e430-e480, 2025.06
Asano, Y; Asai, J; Ishii, T; Iwata, Y; Kodera, M; Miyabe, C; Uchiyama, A; Ogawa, Y; Okamura, K; Kishibe, M; Koike, Y; Kotobuki, Y; Fujimoto, N; Miyagi, T; Yamaguchi, Y; Yoshizaki, A; Omori, R; Nakanis...
Single Author
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Wound, pressure ulcer, and burn guidelines (2023)―4: Guidelines for the management of connective tissue disease/ vasculitis-associated skin ulcers, third edition, The Journal of Dermatology, 52(6) 951-1122, 2025.04
Asano Yoshihide, Asai Jun, Ishii Takayuki, Iwata Yohei, Kodera Masanari, Miyabe Chie, Uchiyama Akihiko, Ogawa Youichi, Okamura Ken, Kishibe Mari, Koike Yuta, Kotobuki Yorihisa, Fujimoto Noriki, Miyagi...
Single Author
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A case of cancer-associated amyopathic dermatomyositis with anti-Mi-2 antibody, JOURNAL OF DERMATOLOGY, 52(4) e280-e281, 2025.04
Nakamura, R; Okamura, K; Watabe, T; Miura, T; Suzuki, T
Single Author
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Hypopigmented malignant melanoma in a patient with oculocutaneous albinism type 4, JOURNAL OF DERMATOLOGY, 52(6) e584-e585, 2025.03
Yamamoto, K; Okamura, K; Saito, T; Suzuki, T
Single Author
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Synonymous but Significant: New Findings of Pathological Variants in Hermansky-Pudlak Syndrome, PIGMENT CELL & MELANOMA RESEARCH, 38(2) e13221, 2025.03
Kawaguchi, J; Okamura, K; Saito, T; Arai, Y; Fujiwara, S; Kitamura, M; Tanizaki, H; Hozumi, Y; Suzuki, T
Single Author
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Genetics and epigenetics in vitiligo, JOURNAL OF DERMATOLOGICAL SCIENCE, 117(3) 45-51, 2025.03
Okamura, K; Suzuki, T
Single Author
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Effective management of coexisting bullous pemphigoid and psoriasis with bimekizumab, JOURNAL OF DERMATOLOGY, 52(3) e238-e239, 2025.03
Okamura, K; Saito, T; Arai, Y; Suto, H; Suzuki, T
Single Author
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特集 すぐに役立つ すごく役立つ 皮膚科検査の基本マニュアル 遺伝学的検査・細胞解析 遺伝性色素異常症(白皮症含む)の遺伝子診断, 皮膚病診療, 46(13) 97-100, 2024.12
岡村 賢, 鈴木 民夫
Single Author
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Prospective multicenter surveillance study of branch-duct intraductal papillary mucinous neoplasm of the pancreas; risk of dual carcinogenesis, PANCREATOLOGY, 24(7) 1141-1151, 2024.11
Ohtsuka, T; Maguchi, H; Tokunaga, S; Hijioka, S; Takayama, Y; Koshita, S; Hanada, K; Sudo, K; Uehara, H; Tanno, S; Tada, M; Kimura, W; Nakamura, M; Kin, T; Kamata, K; Masamune, A; Iwashita, T; Akahosh...
Single Author
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A Non-targeted Proteomics Newborn Screening Platform for Inborn Errors of Immunity, Journal of Clinical Immunology, 45 , 2024.10
柴田 洋史, 中島 大輔, 紺野 亮, 土方 敦司, 東口 素子, 仁平 寛士, 下寺 佐栄子, 宮本 尚幸, 伊佐 真彦, 日衛嶋 栄太郎, 井澤 和司, 滝田 順子, 平家 俊男, 岡村 賢, 大西 秀典, 石村 匡崇, 岡田 賢, 山下 基, 森尾 友宏, 金兼 弘和, 今井 耕輔, 中村 康子, 野々山 恵章, 内山 徹, 小野寺 雅史, 西小森 隆太, 小原 收, 川島 祐介, 八角 高...
Single Author
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症例 乳頭部およびその周囲に発生したBowen病の1例, 皮膚科の臨床, 66(10) 1387-1390, 2024.09
新井 陽介, 林 昌浩, 山本 晧平, 岡村 賢, 大山 正俊, 鈴木 民夫
Single Author
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Post-COVID-19 vaccination diffuse cutaneous sarcoidosis, JOURNAL OF DERMATOLOGY, 51(8) e282-e283, 2024.08
Hemmi, A; Okamura, K; Nikaido, M; Saito, T; Arai, Y; Suzuki, T
Single Author
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Successful treatment of recurrent subcutaneous abscesses using granulocyte and monocyte adsorptive apheresis, JOURNAL OF DERMATOLOGY, 51(8) e287-e288, 2024.08
Okamura, K; Nikaido, M; Saito, T; Arai, Y; Yoshioka, C; Yagi, M; Komoriya, H; Takahashi, N; Hozumi, Y; Suzuki, T
Single Author
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Genetic insights into Tietz albinism-deafness syndrome: A new dominant-negative mutation in <i>MITF</i>, PIGMENT CELL & MELANOMA RESEARCH, 37(4) 430-437, 2024.07
Yamamoto, K; Okamura, K; Wakamatsu, K; Ito, S; Akabane, K; Arai, Y; Kawaguchi, J; Hozumi, Y; Suzuki, T
Single Author
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特集 子どもの皮膚診療を極めるために Ⅲ 専門医への紹介が必要な皮膚疾患 眼皮膚白皮症, 小児科診療, 87(13) 272-277, 2024.04
齊藤 亨, 岡村 賢, 鈴木 民夫
Single Author
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Resident memory T cell contributes to the phenotype of inflammatory vitiligo, JOURNAL OF DERMATOLOGICAL SCIENCE, 113(2) 74-76, 2024.02
Okamura, K; Kabasawa, T; Saito, T; Arai, Y; Futakuchi, M; Suzuki, T
Single Author
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A case of acute localized exanthematous pustulosis following COVID-19 infection, JOURNAL OF DERMATOLOGY, 51(2) e37-e38, 2024.02
Arai, Y; Okamura, K; Saito, T; Ito, Y; Suzuki, T
Single Author
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症例 眼皮膚白皮症4型の一卵性双生児例, 皮膚科の臨床, 66(1) 91-93, 2024.01
松立 吉弘, 土居 千晃, 岡﨑 秀規, 定本 靖司, 齊藤 亨, 岡村 賢, 鈴木 民夫
Single Author
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Two atypical cases of multiple miliary osteoma cutis, EUROPEAN JOURNAL OF DERMATOLOGY, 34(1) 95-97, 2024.01
Arai, Y; Okamura, K; Saito, T; Sugawara, M; Suzuki, T
Single Author
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A Sporadic Case of Dyschromatosis Symmetrica Hereditaria, Hifu no kagaku, 23(4) 301-306, 2024
Kurosaki Yukiho, Kawashima Haruna, Ota Asako, Miyazaki Akiko, Nakajima Takeshi, Saito Toru, Okamura Ken, Suzuki Tamio, Itoi-Ochi Saori
Single Author
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Vitiligo through the Lens of Genetics, JOURNAL OF JAPANESE COSMETIC SCIENCE SOCIETY, 47(4) 314-319, 2023.12
Okamura Ken
Single Author
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A vitiligo-associated SNP (rs706779) controls IL15RA isoforms and T cell activation in epidermal keratinocytes, JOURNAL OF INVESTIGATIVE DERMATOLOGY, 143(5) S144, 2023.05
Okamura, K; Shan, S; Tang, Q; Vangala, P; Fan, X; Lopes, CS; Cao, Y; Ko, W; Suzuki, T; Khvorova, A; Garber, M; Harris, JE
Single Author
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バセドウ病に対するヨウ化カリウムまたはthionamide治療中または治療後に甲状腺機能亢進症再発とよく似た所見を呈し寛解に至った無痛性甲状腺炎(Painless thyroiditis mimicking relapse of hyperthyroidism during or after potassium iodide or thionamide therapy for Graves' disease resulting in remission), Endocrine Journal, 70(2) 207-222, 2023.02
Okamura Ken, Sato Kaori, Fujikawa Megumi, Bandai Sachiko, Ikenoue Hiroshi, Kitazono Takanari
Single Author
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ミエロペルオキシダーゼ特異的抗好中球細胞質抗体陽性Hermansky-Pudlak症候群患者の肺および腸病変(Pulmonary and Intestinal Involvement in a Patient with Myeloperoxidase-specific Antineutrophil Cytoplasmic Antibody-positive Hermansky-Pudlak Syndrome), Internal Medicine, 62(1) 103-106, 2023.01
Tokito Takatomo, Sakamoto Noriho, Ishimoto Hiroshi, Okuno Daisuke, Miyamura Takuto, Hara Atsuko, Kido Takashi, Yamamoto Kazuko, Yamaguchi Hiroyuki, Obase Yasushi, Akazawa Yuko, Okamura Ken, Suzuki Tam...
Single Author
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Pulmonary and Intestinal Involvement in a Patient with Myeloperoxidase-specific Antineutrophil Cytoplasmic Antibody-positive Hermansky-Pudlak Syndrome, INTERNAL MEDICINE, 62(1) 103-106, 2023
Tokito, T; Sakamoto, N; Ishimoto, H; Okuno, D; Miyamura, T; Hara, A; Kido, T; Yamamoto, K; Yamaguchi, H; Obase, Y; Akazawa, Y; Okamura, K; Suzuki, T; Ishimatsu, Y; Mukae, H
Single Author
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Melanotic Malignant Melanoma in Oculocutaneous Albinism Type 4., Acta Derm Venereol, 97(2) 287-288, 2017.02
Ozaki Saeko, Funasaka Yoko, Otsuka Yohei, Oyama Satomi, Ito Michiko, Osada Shin-Ichi, Ueno Takashi, Okamura Ken, Hozumi Yutaka, Suzuki Tamio, Kawana Seiji, Saeki Hidehisa
Multiple Authorship (Including Foreigners)
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Microsatellite polymorphism located immediately upstream of the phosphatidylinositol glycan, class K gene (PIGK) affects its expression, which correlates with tyrosinase activity in human melanocytes., J Dermatol Sci, 85(2) 131-134, 2017.02
Okamura Ken, Hayashi Masahiro, Abe Yuko, Araki Yuta, Hozumi Yutaka, Suzuki Tamio
Multiple Authorship (Including Foreigners)
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A novel three dimensional imaging method for the measurement of area in vitiligo and chemical leukoderma., J Dermatol Sci, 84(2) 219-221, 2016.11
Hayashi Masahiro, Okamura Ken, Araki Yuta, Suzuki Masami, Tanaka Tomoyo, Abe Yuko, Nakano Shoko, Yoshizawa Junko, Hozumi Yutaka, Inoie Masukazu, Suzuki Tamio
Multiple Authorship (Including Foreigners)
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Whole-exome sequencing confirmation of multiple MC1R variants associated with extensive freckles and red hair: Analysis of a Mongolian family., J Dermatol Sci, 84(2) 216-219, 2016.11
Araki Yuta, Okamura Ken, Munkhbat Batmunkh, Tamiya Gen, Erdene-Ochir Bujin, Nemekhbaatar Lkhasuren, Hozumi Yutaka, Suzuki Tamio
Multiple Authorship (Including Foreigners)
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Dyschromatosis symmetrica hereditaria complicated by intracranial hemangiomas and Parry-Romberg syndrome., J Dermatol, 43(9) 1106-1108, 2016.09
Yanagishita Saki, Fukai Kazuyoshi, Tsuruta Daisuke, Seto Toshiyuki, Shimono Taro, Okamura Ken, Hozumi Yutaka, Suzuki Tamio
Multiple Authorship (Including Foreigners)
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Case of a neutrophilic dermatosis involving lung abscess after influenza vaccination., J Dermatol, 2016.08
Okamura Ken, Saitoh Hiroshi, Saitoh Soichi, Suzuki Tamio
Multiple Authorship (Including Foreigners)
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Case of Japanese Hermansky-Pudlak syndrome patient with deeply invasive squamous cell carcinoma and multiple lesions of actinic keratosis on the face and neck., J Dermatol, 2016.05
Iwata Yohei, Kobayashi Tsukane, Arima Masaru, Numata Shigeki, Yagami Akiko, Okamura Ken, Araki Yuta, Sugiura Kazumitsu, Suzuki Tamio, Matsunaga Kayoko
Multiple Authorship (Including Foreigners)
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Behavior of melanocytes and keratinocytes in reticulate acropigmentation of Kitamura., Pigment Cell Melanoma Res, 29(2) 243-246, 2016.03
Okamura Ken, Abe Yuko, Araki Yuta, Hozumi Yutaka, Kawaguchi Masakazu, Suzuki Tamio
Multiple Authorship (Including Foreigners)
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Genetic analyses of oculocutaneous albinism types 2 and 4 with eight novel mutations., J Dermatol Sci, 81(2) 140-142, 2016.02
Okamura Ken, Araki Yuta, Abe Yuko, Shigyou Akari, Fujiyama Toshiharu, Baba Atsunori, Kanekura Takuro, Chinen Yasutsugu, Kono Michihiro, Niizeki Hironori, Tsubota Akiko, Konno Takayuki, Hozumi Yutaka, ...
Multiple Authorship (Including Foreigners)
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Rhododenol-induced leukoderma in a mouse model mimicking Japanese skin., J Dermatol Sci, 81(1) 35-43, 2016.01
Abe Yuko, Okamura Ken, Kawaguchi Masakazu, Hozumi Yutaka, Aoki Hitomi, Kunisada Takahiro, Ito Shosuke, Wakamatsu Kazumasa, Matsunaga Kayoko, Suzuki Tamio
Multiple Authorship (Including Foreigners)
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Waardenburg syndrome type IIE in a Japanese patient caused by a novel missense mutation in the SOX10 gene., J Dermatol, 42(12) 1211-1212, 2015.12
Okamura Ken, Oiso Naoki, Tamiya Gen, Makino Satoshi, Tsujioka Daishi, Abe Yuko, Kawaguchi Masakazu, Hozumi Yutaka, Shimomura Yoshikazu, Suzuki Tamio
Multiple Authorship (Including Foreigners)
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Immunohistopathological analysis of frizzled-4-positive immature melanocytes from hair follicles of patients with Rhododenol-induced leukoderma., J Dermatol Sci, 80(2) 156-158, 2015.11
Okamura Ken, Ohe Rintaro, Abe Yuko, Ueki Masao, Hozumi Yutaka, Tamiya Gen, Matsunaga Kayoko, Yamakawa Mitsunori, Suzuki Tamio
Multiple Authorship (Including Foreigners)
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Case of Hermansky-Pudlak syndrome 1 in a Japanese infant., J Dermatol, 42(9) 906-907, 2015.09
Tanaka Mari, Yang Liping, Wataya-Kaneda Mari, Suzuki Tamio, Okamura Ken, Hozumi Yutaka, Yang Fei, Katayama Ichiro
Multiple Authorship (Including Foreigners)
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Mutation analyses of patients with dyschromatosis symmetrica hereditaria: Ten novel mutations of the ADAR1 gene., J Dermatol Sci, 79(1) 88-90, 2015.07
Okamura Ken, Abe Yuko, Fukai Kazuyoshi, Tsuruta Daisuke, Suga Yasushi, Nakamura Motonobu, Funasaka Yoko, Oka Masahiro, Suzuki Noriyuki, Wataya-Kaneda Mari, Seishima Mariko, Hozumi Yutaka, Kawaguchi Ma...
Multiple Authorship (Including Foreigners)
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Oculocutaneous albinism (OCA) in Japanese patients: five novel mutations., J Dermatol Sci, 74(2) 173-174, 2014.05
Okamura Ken, Yoshizawa Junko, Abe Yuko, Hanaoka Keiko, Higashi Naoyuki, Togawa Yaei, Nakagawa Seitaro, Kambe Naotomo, Funasaka Yoko, Ohko Kentaro, Hozumi Yutaka, Suzuki Tamio
Multiple Authorship (Including Foreigners)
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Chemoradiation using cisplatin and S-1 in locally advanced giant squamous cell carcinoma of the buttock., J Dermatol, 41(3) 274-275, 2014.03
Yaguchi Yoriko, Kawaguchi Masakazu, Murata Ichidai, Okamura Ken, Katagiri Yoshiyuki, Suzuki Tamio
Multiple Authorship (Including Foreigners)
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Case of a Mongolian child with extensive Mongolian spots in mucopolysaccharidosis type VI: identification of a novel mutation in the arylsulfatase B gene., J Dermatol, 40(9) 758-759, 2013.09
Okamura Ken, Munkhbat Batmunkh, Batchimeg Batbaatar, Tamiya Gen, Hozumi Yutaka, Suzuki Tamio
Multiple Authorship (Including Foreigners)
Review Papers
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顆粒球および単球吸着アフェレーシスによる治療が奏効した再発性皮下膿瘍(Successful treatment of recurrent subcutaneous abscesses using granulocyte and monocyte adsorptive apheresis), John Wiley & Sons Australia, Ltd, The Journal of Dermatology, 51(8) e287-e288, 2024.08
Okamura Ken, Nikaido Mariko, Saito Toru, Arai Yosuke, Yoshioka Chiharu, Yagi Makoto, Komoriya Hitomi, Takahashi Nana, Hozumi Yutaka, Suzuki Tamio
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COVID-19ワクチン接種後のび漫性皮膚サルコイドーシス(Post-COVID-19 vaccination diffuse cutaneous sarcoidosis), John Wiley & Sons Australia, Ltd, The Journal of Dermatology, 51(8) e282-e283, 2024.08
Hemmi Ami, Okamura Ken, Nikaido Mariko, Saito Toru, Arai Yosuke, Suzuki Tamio
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レジデントメモリーT細胞は炎症性白斑の表現型に寄与する(Resident memory T cell contributes to the phenotype of inflammatory vitiligo), エルゼビア・ジャパン(株), Journal of Dermatological Science, 113(2) 74-76, 2024.02
Okamura Ken, Kabasawa Takanobu, Saito Toru, Arai Yosuke, Futakuchi Mitsuru, Suzuki Tamio
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COVID-19感染後の急性局所性発疹性膿疱症の1例(A case of acute localized exanthematous pustulosis following COVID-19 infection), John Wiley & Sons Australia, Ltd, The Journal of Dermatology, 51(2) e37-e38, 2024.02
Arai Yosuke, Okamura Ken, Saito Toru, Ito Yoshihiko, Suzuki Tamio
Academic Awards Received
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Grant by the Japanese Dermatological Association for the Basic Dermatological Research from Shiseido, 2018.04, Japan, Ken Okamura
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JSPCR (Japanese Society for Pigment Cell Research) Encouraging Prize, 2017, 2017.10, Japan, Ken Okamura
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SID/JSID Young Fellow Collegiality Awards, 2017, 2017.04, Japan, Ken Okamura
Other external funds procured
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Establishment of a Vitiligo Model Mouse and Pathological Analysis: Development of a Novel Therapy Focusing on Retrotransposons,2024.04 - 2027.03,Establishment of a Vitiligo Model Mouse and Pathological Analysis: Development of a Novel Therapy Focusing on Retrotransposons
Japan Society for the Promotion of Science
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Kao Melanin Workshop,2018.04 - 2019.03
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Kao Melanin Workshop,2016.04 - 2017.03