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Y. Osaki · SciRah

Researcher profile · Semantic Scholar

Y. Osaki

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Y. Osaki — researcher profile on SciRah

h-index: 43
Works: 248
Citations: 6,936

Most-cited papers

Phase 2 study of lenvatinib in patients with advanced hepatocellular carcinoma
K. Ikeda, M. Kudo, S. Kawazoe, Y. Osaki +8 more
2016Journal of gastroenterology311 citations Open access
Semantic Scholar
Lusutrombopag Reduces Need for Platelet Transfusion in Patients With Thrombocytopenia Undergoing Invasive Procedures
H. Hidaka, M. Kurosaki, Hironori Tanaka, M. Kudo +16 more
2019Clinical Gastroenterology and Hepatology118 citations Open access
Semantic Scholar
Liver Cirrhosis: Evaluation, Nutritional Status, and Prognosis
Hiroki Nishikawa, Y. Osaki
2015Mediators of Inflammation108 citations Open access
Semantic Scholar
Efficacy and safety of glecaprevir/pibrentasvir in Japanese patients with chronic genotype 2 hepatitis C virus infection
H. Toyoda, K. Chayama, F. Suzuki, Ken Sato +18 more
2017Hepatology99 citations Open access
Semantic Scholar
Peretinoin after curative therapy of hepatitis C-related hepatocellular carcinoma: a randomized double-blind placebo-controlled study
K. Okita, N. Izumi, O. Matsui, Katsuaki Tanaka +19 more
2014Journal of gastroenterology85 citations Open access
Semantic Scholar
B-Mode Ultrasonography versus Contrast-Enhanced Ultrasonography for Surveillance of Hepatocellular Carcinoma: A Prospective Multicenter Randomized Controlled Trial
M. Kudo, K. Ueshima, Y. Osaki, M. Hirooka +9 more
2019Liver Cancer79 citations Open access
Semantic Scholar
Prognostic significance of sarcopenia in patients with hepatocellular carcinoma undergoing sorafenib therapy.
Hiroki Nishikawa, N. Nishijima, H. Enomoto, A. Sakamoto +8 more
2017Oncology Letters79 citations Open access
Semantic Scholar
A randomized controlled trial of lusutrombopag in Japanese patients with chronic liver disease undergoing radiofrequency ablation
R. Tateishi, M. Seike, M. Kudo, Hideyuki Tamai +11 more
2018Journal of gastroenterology76 citations Open access
Semantic Scholar
Treatment for hepatocellular carcinoma in Japan over the last three decades: Our experience and published work review
Y. Osaki, Hiroki Nishikawa
2014Hepatology Research75 citations Open access
Semantic Scholar
Cold snare polypectomy reduced delayed postpolypectomy bleeding compared with conventional hot polypectomy: a propensity score-matching analysis
Takeshi Yamashina, M. Fukuhara, T. Maruo, Gensho Tanke +17 more
2017Endoscopy International Open70 citations Open access
Semantic Scholar
Transcatheter arterial embolic therapies for hepatocellular carcinoma: a literature review.
Hiroki Nishikawa, R. Kita, Toru Kimura, Y. Osaki
2014Anticancer Research57 citations
Semantic Scholar
Does interferon-free direct-acting antiviral therapy for hepatitis C after curative treatment for hepatocellular carcinoma lead to unexpected recurrences of HCC? A multicenter study by the Japanese Red Cross Hospital Liver Study Group
Toshie Mashiba, K. Joko, M. Kurosaki, H. Ochi +21 more
2018PLoS ONE54 citations Open access
Semantic Scholar
Gastric atrophy and xanthelasma are markers for predicting the development of early gastric cancer
A. Sekikawa, H. Fukui, R. Sada, M. Fukuhara +12 more
2015Journal of gastroenterology52 citations
Semantic Scholar
Antithrombin III for portal vein thrombosis in patients with liver disease: A randomized, double‐blind, controlled trial
H. Hidaka, S. Kokubu, Takahiro Sato, S. Katsushima +10 more
2017Hepatology Research48 citations Open access
Semantic Scholar
Diabetes mellitus increases the risk of early gastric cancer development.
A. Sekikawa, H. Fukui, T. Maruo, T. Tsumura +2 more
2014European Journal of Cancer48 citations
Semantic Scholar
Factors predicting through-the-scope gastroduodenal stenting outcomes in patients with gastric outlet obstruction: a large multicenter retrospective study in West Japan.
Kentaro Yamao, M. Kitano, T. Kayahara, Etsuji Ishida +10 more
2016Gastrointestinal Endoscopy45 citations
Semantic Scholar
Radiofrequency ablation for hepatocellular carcinoma: the relationship between a new grading system for the ablative margin and clinical outcomes
Hiroki Nishikawa, Y. Osaki, E. Iguchi, H. Takeda +8 more
2013Journal of gastroenterology43 citations
Semantic Scholar
Gastric xanthelasma may be a warning sign for the presence of early gastric cancer
A. Sekikawa, H. Fukui, T. Maruo, T. Tsumura +3 more
2014Journal of Gastroenterology and Hepatology42 citations
Semantic Scholar
Clinical significance of therapy using branched‐chain amino acid granules in patients with liver cirrhosis and hepatocellular carcinoma
Hiroki Nishikawa, Y. Osaki
2014Hepatology Research42 citations Open access
Semantic Scholar
Survey of survival among patients with hepatitis C virus-related hepatocellular carcinoma treated with peretinoin, an acyclic retinoid, after the completion of a randomized, placebo-controlled trial
K. Okita, N. Izumi, K. Ikeda, Y. Osaki +20 more
2014Journal of gastroenterology40 citations Open access
Semantic Scholar
Complex Pattern of Resistance-Associated Substitutions of Hepatitis C Virus after Daclatasvir/Asunaprevir Treatment Failure
J. Itakura, M. Kurosaki, C. Hasebe, Y. Osaki +19 more
2016PLoS ONE39 citations Open access
Semantic Scholar
Comparison of systems for assessment of post-therapeutic response to sorafenib for hepatocellular carcinoma
T. Arizumi, K. Ueshima, H. Takeda, Y. Osaki +9 more
2014Journal of gastroenterology39 citations Open access
Semantic Scholar
Virological Escape in HCV Genotype-1-Infected Patients Receiving Daclatasvir plus Ribavirin and Peginterferon Alfa-2A or Alfa-2B
F. Mcphee, D. Hernandez, N. Zhou, Fei Yu +12 more
2014Antiviral Therapy39 citations
Semantic Scholar
The Effect of Long-term Supplementation With Branched-chain Amino Acid Granules in Patients With Hepatitis C Virus-related Hepatocellular Carcinoma After Radiofrequency Thermal Ablation
Hiroki Nishikawa, Y. Osaki, E. Iguchi, Y. Koshikawa +13 more
2013Journal of Clinical Gastroenterology39 citations
Semantic Scholar
Ramucirumab as second-line treatment in patients with advanced hepatocellular carcinoma: Japanese subgroup analysis of the REACH trial
M. Kudo, E. Hatano, S. Ohkawa, H. Fujii +21 more
2017Journal of gastroenterology37 citations
Semantic Scholar
Long‐term antitumor effect of lenvatinib on unresectable hepatocellular carcinoma with portal vein invasion
H. Takeda, N. Nishijima, A. Nasu, H. Komekado +4 more
2019Hepatology Research34 citations Open access
Semantic Scholar
Clinical features associated with radiological response to sorafenib in unresectable hepatocellular carcinoma: a large multicenter study in Japan
H. Takeda, Hiroki Nishikawa, Y. Osaki, K. Tsuchiya +6 more
2015Liver international (Print)33 citations
Semantic Scholar
Hepatocellular Carcinoma in Child-Pugh C Cirrhosis: Prognostic Factors and Survival Benefit of Nontransplant Treatments
M. Kudo, Y. Osaki, T. Matsunaga, H. Kasugai +2 more
2013Digestive Diseases33 citations Open access
Semantic Scholar
Comparison of Clinical Characteristics and Survival after Surgery in Patients with Non-B and Non-C Hepatocellular Carcinoma and Hepatitis Virus-Related Hepatocellular Carcinoma
Hiroki Nishikawa, A. Arimoto, T. Wakasa, R. Kita +2 more
2013Journal of Cancer33 citations Open access
Semantic Scholar
Daclatasvir Combined with Peginterferon Alfa-2A and Ribavirin in Japanese Patients Infected with Hepatitis C Genotype 1
N. Izumi, O. Yokosuka, N. Kawada, Y. Osaki +8 more
2014Antiviral Therapy32 citations
Semantic Scholar
Transcatheter Arterial Chemoembolization for Intermediate-Stage Hepatocellular Carcinoma: Clinical Outcome and Safety in Elderly Patients
Hiroki Nishikawa, R. Kita, Toru Kimura, Y. Ohara +7 more
2014Journal of Cancer32 citations Open access
Semantic Scholar
Risk of hepatocellular carcinoma in cirrhotic hepatitis B virus patients during nucleoside/nucleotide analog therapy
E. Orito, C. Hasebe, M. Kurosaki, Y. Osaki +6 more
2015Hepatology Research31 citations
Semantic Scholar
Absent microsurface pattern is characteristic of early gastric cancer of undifferentiated type: magnifying endoscopy with narrow-band imaging.
T. Kanesaka, A. Sekikawa, T. Tsumura, T. Maruo +4 more
2014Gastrointestinal Endoscopy31 citations
Semantic Scholar
Clinical Implication of Performance Status in Patients with Hepatocellular Carcinoma Complicating with Cirrhosis
Hiroki Nishikawa, R. Kita, Toru Kimura, Y. Ohara +6 more
2015Journal of Cancer30 citations Open access
Semantic Scholar
Recent Progress in Radiofrequency Ablation Therapy for Hepatocellular Carcinoma
K. Ikeda, Y. Osaki, H. Nakanishi, A. Nasu +11 more
2014Oncology29 citations
Semantic Scholar
Serum Levels of Alpha Fetoprotein Increased More Than 10 Years Before Detection of Hepatocellular Carcinoma
D. Hughes, S. Berhane, Catherine E. de Groot, H. Toyoda +12 more
2020Clinical Gastroenterology and Hepatology28 citations Open access
Semantic Scholar
Comparison of FIB-4 index and aspartate aminotransferase to platelet ratio index on carcinogenesis in chronic hepatitis B treated with entecavir
Hiroki Nishikawa, N. Nishijima, H. Enomoto, A. Sakamoto +8 more
2017Journal of Cancer28 citations Open access
Semantic Scholar
Comparison of standard-dose and half‑dose sorafenib therapy on clinical outcome in patients with unresectable hepatocellular carcinoma in field practice: A propensity score matching analysis.
Hiroki Nishikawa, Y. Osaki, Masatsugu Endo, H. Takeda +7 more
2014International Journal of Oncology28 citations Open access
Semantic Scholar
Sorafenib Therapy for BCLC Stage B/C Hepatocellular Carcinoma; Clinical Outcome and Safety in Aged Patients: A Multicenter Study in Japan
Hiroki Nishikawa, H. Takeda, K. Tsuchiya, K. Joko +6 more
2014Journal of Cancer27 citations Open access
Semantic Scholar
Effect of treatment with branched‐chain amino acids during sorafenib therapy for unresectable hepatocellular carcinoma
H. Takeda, Hiroki Nishikawa, E. Iguchi, Y. Ohara +8 more
2014Hepatology Research26 citations
Semantic Scholar
Underwater endoscopic mucosal resection: a new endoscopic method for resection of rectal neuroendocrine tumor grade 1 (carcinoid) ≤ 10 mm in diameter
Takeshi Yamashina, Takehiko Tumura, T. Maruo, Takayuki Matsumae +16 more
2018Endoscopy International Open25 citations Open access
Semantic Scholar
Evolution of multi-drug resistant HCV clones from pre-existing resistant-associated variants during direct-acting antiviral therapy determined by third-generation sequencing
H. Takeda, Y. Ueda, Tadashi Inuzuka, Y. Yamashita +7 more
2017Scientific Reports24 citations Open access
Semantic Scholar
Reactivation from occult HBV carrier status is characterized by low genetic heterogeneity with the wild-type or G1896A variant prevalence.
Tadashi Inuzuka, Y. Ueda, H. Morimura, Yosuke Fujii +6 more
2014Journal of Hepatology24 citations Open access
Semantic Scholar
Dense‐type crypt opening seen on magnifying endoscopy with narrow‐band imaging is a feature of gastric adenoma
T. Kanesaka, A. Sekikawa, T. Tsumura, T. Maruo +4 more
2014Digestive Endoscopy24 citations
Semantic Scholar
Targeted DNA and RNA sequencing of fine-needle biopsy FFPE specimens in patients with unresectable hepatocellular carcinoma treated with sorafenib
K. Sakai, H. Takeda, N. Nishijima, E. Orito +5 more
2015OncoTarget20 citations Open access
Semantic Scholar
Effect of nucleoside analog use in patients with hepatitis B virus‐related hepatocellular carcinoma
Hiroki Nishikawa, N. Nishijima, A. Arimoto, Tadashi Inuzuka +3 more
2014Hepatology Research20 citations
Semantic Scholar
Sustained Antiviral Effects and Clearance of Hepatitis Surface Antigen after Combination Therapy with Entecavir and Pegylated Interferon in Chronic Hepatitis B
S. Hagiwara, N. Nishida, Tomohiro Watanabe, Hiroshi Ida +7 more
2018Antiviral Therapy19 citations
Semantic Scholar
Screening and surveillance for occupational cholangiocarcinoma in workers exposed to organic solvents
S. Kubo, S. Takemura, Shogo Tanaka, T. Nishioka +12 more
2016Surgery today (Print)19 citations Open access
Semantic Scholar
Expansion of viral variants associated with immune escape and impaired virion secretion in patients with HBV reactivation after resolved infection
Tadashi Inuzuka, Y. Ueda, S. Arasawa, H. Takeda +5 more
2018Scientific Reports18 citations Open access
Semantic Scholar
Noninvasive Diagnosis of Liver Fibrosis: Utility of Data Mining of Both Ultrasound Elastography and Serological Findings to Construct a Decision Tree
Norihisa Yada, M. Kudo, N. Kawada, Shuichi Sato +7 more
2014Oncology17 citations
Semantic Scholar

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