Masashi Ninomiya

2.7k total citations · 1 hit paper
82 papers, 2.0k citations indexed

About

Masashi Ninomiya is a scholar working on Hepatology, Epidemiology and Surgery. According to data from OpenAlex, Masashi Ninomiya has authored 82 papers receiving a total of 2.0k indexed citations (citations by other indexed papers that have themselves been cited), including 52 papers in Hepatology, 51 papers in Epidemiology and 11 papers in Surgery. Recurrent topics in Masashi Ninomiya's work include Liver Disease Diagnosis and Treatment (32 papers), Hepatitis B Virus Studies (31 papers) and Hepatitis C virus research (28 papers). Masashi Ninomiya is often cited by papers focused on Liver Disease Diagnosis and Treatment (32 papers), Hepatitis B Virus Studies (31 papers) and Hepatitis C virus research (28 papers). Masashi Ninomiya collaborates with scholars based in Japan, United States and Taiwan. Masashi Ninomiya's co-authors include Tooru Shimosegawa, Eiji Kakazu, Yasuteru Kondo, Jun Inoue, Osamu Kimura, Yoshiyuki Ueno, Hiroaki Okamoto, Masaharu Takahashi, Takayuki Kogure and Nobukazu Araki and has published in prestigious journals such as Journal of Neuroscience, SHILAP Revista de lepidopterología and Gastroenterology.

In The Last Decade

Masashi Ninomiya

77 papers receiving 2.0k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Subventricular Zone-Derived Neuroblasts Migrate and Differentiate into Mature Neurons in the Post-Stroke Adult Striatum

2006 586 citations Toru Yamashita, Masashi Ninomiya et al. Journal of Neuroscience profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Masashi Ninomiya Japan	24	754	609	492	397	241	82	2.0k
Yoshiko Habu Japan	23	311 0.4×	262 0.4×	264 0.5×	65 0.2×	66 0.3×	32	1.9k
Elena Baixerás Spain	22	314 0.4×	185 0.3×	592 1.2×	19 0.0×	146 0.6×	59	2.8k
Hiromi Takaki Japan	23	251 0.3×	77 0.1×	657 1.3×	39 0.1×	124 0.5×	46	1.8k
Lars Vereecke Belgium	25	385 0.5×	43 0.1×	1.6k 3.3×	87 0.2×	132 0.5×	46	3.7k
Kate O’Brien United States	17	163 0.2×	91 0.1×	645 1.3×	111 0.3×	88 0.4×	19	2.0k
Lewis F. Neville United States	14	311 0.4×	170 0.3×	283 0.6×	32 0.1×	54 0.2×	27	1.1k
Ruqi Tang China	22	671 0.9×	559 0.9×	647 1.3×	17 0.0×	66 0.3×	59	1.8k
Paul T. Massa United States	27	225 0.3×	17 0.0×	824 1.7×	116 0.3×	197 0.8×	63	2.4k
Belén de Andrés Spain	27	161 0.2×	82 0.1×	531 1.1×	72 0.2×	144 0.6×	69	1.9k

Countries citing papers authored by Masashi Ninomiya

Since Specialization

Citations

This map shows the geographic impact of Masashi Ninomiya's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Masashi Ninomiya with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Masashi Ninomiya more than expected).

Fields of papers citing papers by Masashi Ninomiya

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Masashi Ninomiya. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Masashi Ninomiya. The network helps show where Masashi Ninomiya may publish in the future.

Co-authorship network of co-authors of Masashi Ninomiya

This figure shows the co-authorship network connecting the top 25 collaborators of Masashi Ninomiya. A scholar is included among the top collaborators of Masashi Ninomiya based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Masashi Ninomiya. Masashi Ninomiya is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Inoue, Jun, Kazumichi Abe, Hiroaki Haga, et al.. (2025). Validation Study of Scores Predicting Hepatocellular Carcinoma Risk in Chronic Hepatitis B Patients Treated With Nucleos(t)ide Analogues. Journal of Viral Hepatitis. 32(4). e70021–e70021.

Sato, Kosuke, Jun Inoue, Takehiro Akahane, et al.. (2025). Comparison of hepatitis B virus genotype B and C patients in Japan in terms of family history and maternal age at birth. Hepatology Research. 55(5). 773–779.

Inoue, Jun, et al.. (2024). Long-read deep sequencing analysis of hepatitis B virus quasispecies in two elderly cases of interspousal transmission. Journal of Infection and Chemotherapy. 31(1). 102521–102521. 1 indexed citations

Sasaki, M., Jun Inoue, Eiji Kakazu, et al.. (2024). Type 2 Diabetes Mellitus Is a Risk Factor for Skeletal Muscle Loss in the Course of Dietary Treatment for Patients with Metabolic Dysfunction-associated Steatotic Liver Disease. Internal Medicine. 64(5). 631–641.

Inoue, Jun, et al.. (2024). Association of Omega-3 Polyunsaturated Fatty Acids with Sarcopenia in Liver Cirrhosis Patients with Hepatocellular Carcinoma. Journal of Clinical and Translational Hepatology. 0(0). 0–0. 3 indexed citations

Inoue, Jun, Takehiro Akahane, Tomoo Kobayashi, et al.. (2023). Usefulness of the Fibrosis‐4 index and alanine aminotransferase at 1 year of nucleos(t)ide analog treatment for prediction of hepatocellular carcinoma in chronic hepatitis B patients. Hepatology Research. 54(2). 131–141. 1 indexed citations

Fujita, Masashi, Kazumichi Abe, Hidekatsu Kuroda, et al.. (2022). Influence of skeletal muscle volume loss during lenvatinib treatment on prognosis in unresectable hepatocellular carcinoma: a multicenter study in Tohoku, Japan. Scientific Reports. 12(1). 6479–6479. 10 indexed citations

Kakazu, Eiji, Jun Inoue, Masashi Ninomiya, et al.. (2019). Branched chain amino acids are associated with the heterogeneity of the area of lipid droplets in hepatocytes of patients with non‐alcoholic fatty liver disease. Hepatology Research. 49(8). 860–871. 16 indexed citations

Kondo, Yasuteru, Osamu Kimura, Tomoaki Iwata, et al.. (2013). A case of sarcoidosis liver caused rupture of esophageal varices due to sudden portal hypertension. Kanzo. 54(5). 354–362. 1 indexed citations

10.

Kogure, Takayuki, Yasuteru Kondo, Eiji Kakazu, et al.. (2013). Involvement of miRNA‐29a in epigenetic regulation of transforming growth factor‐β‐induced epithelial–mesenchymal transition in hepatocellular carcinoma. Hepatology Research. 44(8). 907–919. 29 indexed citations

11.

Kakazu, Eiji, Yasuteru Kondo, Takayuki Kogure, et al.. (2013). Supplementation of Branched-Chain Amino Acids Maintains the Serum Albumin Level in the Course of Hepatocellular Carcinoma Recurrence. The Tohoku Journal of Experimental Medicine. 230(4). 191–196. 10 indexed citations

12.

Ninomiya, Masashi, Yasuteru Kondo, Ryo Funayama, et al.. (2013). Distinct MicroRNAs Expression Profile in Primary Biliary Cirrhosis and Evaluation of miR 505-3p and miR197-3p as Novel Biomarkers. PLoS ONE. 8(6). e66086–e66086. 72 indexed citations

13.

Ninomiya, Masashi, Yoshiyuki Ueno, Ryo Funayama, et al.. (2011). Use of Illumina Deep Sequencing Technology To Differentiate Hepatitis C Virus Variants. Journal of Clinical Microbiology. 50(3). 857–866. 39 indexed citations

14.

Inoue, Jun, Yoshiyuki Ueno, Yuta Wakui, et al.. (2011). Enhanced Replication of Hepatitis B Virus With Frameshift in the Precore Region Found in Fulminant Hepatitis Patients. The Journal of Infectious Diseases. 204(7). 1017–1025. 27 indexed citations

15.

Kakazu, Eiji, Yoshiyuki Ueno, Yasuteru Kondo, et al.. (2011). Plasma L-Cystine/L-Glutamate Imbalance Increases Tumor Necrosis Factor-Alpha from CD14+ Circulating Monocytes in Patients with Advanced Cirrhosis. PLoS ONE. 6(8). e23402–e23402. 14 indexed citations

16.

Inoue, Jun, Yoshiyuki Ueno, Takehiro Akahane, et al.. (2009). Sporadic acute hepatitis E occurred constantly during the last decade in northeast Japan. Journal of Gastroenterology. 44(4). 329–337. 18 indexed citations

17.

Nagaki, Masahito, Masaru Shimizu, Eiichi Tomita, et al.. (2009). Clinical trial: extended treatment duration of peginterferon‐alpha2b plus ribavirin for 72 and 96 weeks in hepatitis C genotype 1‐infected late responders. Alimentary Pharmacology & Therapeutics. 30(4). 343–351. 7 indexed citations

18.

Wibawa, I Dewa Nyoman, Mulyanto Mulyanto, Fumio Tsuda, et al.. (2007). Identification of genotype 4 hepatitis E virus strains from a patient with acute hepatitis E and farm pigs in Bali, Indonesia. Journal of Medical Virology. 79(8). 1138–1146. 28 indexed citations

19.

Yamashita, Toru, Masashi Ninomiya, José Manuel García‐Verdugo, et al.. (2006). Subventricular Zone-Derived Neuroblasts Migrate and Differentiate into Mature Neurons in the Post-Stroke Adult Striatum. Journal of Neuroscience. 26(24). 6627–6636. 586 indexed citations breakdown →

20.

Ninomiya, Masashi, et al.. (1990). Osteoarthropathy in Congenital Sensory Neuropathy With Anhidrosis. Clinical Orthopaedics and Related Research. 258(258). 232–236. 7 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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