Skip to content

Home Search Authors Pakistan News Saved

SciRah

SciRah does not host or store research papers. Results come live from free, official scholarly APIs, and every paper links back to its original source.

Data sources

OpenAlex
Semantic Scholar
Crossref
CORE
arXiv
PubMed

Privacy policy Terms of service

A. Okumura · SciRah

Researcher profile · Semantic Scholar

A. Okumura

Share profile

A. Okumura — researcher profile on SciRah

h-index: 22
Works: 78
Citations: 1,819

Most-cited papers

The potential role of glutamate transporters in the pathogenesis of normal tension glaucoma.
T. Harada, C. Harada, Kazuaki Nakamura, Hun-Meng A Quah +7 more
2007Journal of Clinical Investigation334 citations Open access
Semantic Scholar
Structures and functions of the extrinsic proteins of photosystem II from different species
I. Enami, A. Okumura, R. Nagao, Takehiro Suzuki +2 more
2008Photosynthesis Research142 citations
Semantic Scholar
Role of apoptosis signal-regulating kinase 1 in stress-induced neural cell apoptosis in vivo.
C. Harada, Kazuaki Nakamura, K. Namekata, A. Okumura +9 more
2006American Journal of Pathology110 citations Open access
Semantic Scholar
Isolation and characterization of oxygen-evolving thylakoid membranes and photosystem II particles from a marine diatom Chaetoceros gracilis.
R. Nagao, A. Ishii, Osamu Tada, Takehiro Suzuki +6 more
2007Biochimica et Biophysica Acta99 citations Open access
Semantic Scholar
Increase in Hepatic NKT Cells in Leukocyte Cell-Derived Chemotaxin 2-Deficient Mice Contributes to Severe Concanavalin A-Induced Hepatitis1
Takeshi Saito, A. Okumura, Hisami Watanabe, M. Asano +10 more
2004Journal of Immunology86 citations Open access
Semantic Scholar
Purification and characterization of a stable oxygen-evolving Photosystem II complex from a marine centric diatom, Chaetoceros gracilis.
R. Nagao, T. Tomo, E. Noguchi, Saori Nakajima +6 more
2010Biochimica et Biophysica Acta66 citations Open access
Semantic Scholar
Cross-reconstitution of various extrinsic proteins and photosystem II complexes from cyanobacteria, red algae and higher plants.
I. Enami, Shizue Yoshihara, Akihiro Tohri, A. Okumura +2 more
2000Plant and Cell Physiology66 citations
Semantic Scholar
Extrinsic proteins of photosystem II: an intermediate member of PsbQ protein family in red algal PS II.
Hisataka Ohta, Takehiro Suzuki, Masaji Ueno, A. Okumura +3 more
2003European Journal of Biochemistry64 citations
Semantic Scholar
Suppressive role of leukocyte cell-derived chemotaxin 2 in mouse anti-type II collagen antibody-induced arthritis.
A. Okumura, Takeshi Saito, I. Otani, Kazuo Kojima +8 more
2008Arthritis & Rheumatism63 citations
Semantic Scholar
Increased serum leukocyte cell-derived chemotaxin 2 (LECT2) levels in obesity and fatty liver.
A. Okumura, Hiroyuki Unoki-Kubota, Y. Matsushita, T. Shiga +3 more
2013BioScience Trends58 citations Open access
Semantic Scholar
Role of monocyte chemotactic protein-1 and nuclear factor kappa B in the pathogenesis of proliferative diabetic retinopathy.
C. Harada, A. Okumura, K. Namekata, Kazuaki Nakamura +3 more
2006Diabetes Research and Clinical Practice47 citations
Semantic Scholar
Binding and Functional Properties of Five Extrinsic Proteins in Oxygen-evolving Photosystem II from a Marine Centric Diatom, Chaetoceros gracilis*
R. Nagao, Akira Moriguchi, T. Tomo, A. Niikura +7 more
2010Journal of Biological Chemistry42 citations Open access
Semantic Scholar
Topological analysis of the extrinsic PsbO, PsbP and PsbQ proteins in a green algal PSII complex by cross-linking with a water-soluble carbodiimide.
R. Nagao, Takehiro Suzuki, A. Okumura, A. Niikura +6 more
2010Plant and Cell Physiology40 citations Open access
Semantic Scholar
Dual Agonist of Farnesoid X Receptor and Takeda G Protein‐Coupled Receptor 5 Inhibits Hepatitis B Virus Infection In Vitro and In Vivo
Kiyoaki Ito, A. Okumura, J. Takeuchi, K. Watashi +9 more
2021Hepatology39 citations
Semantic Scholar
Proteases are associated with a minor fucoxanthin chlorophyll a/c-binding protein from the diatom, Chaetoceros gracilis.
R. Nagao, T. Tomo, E. Noguchi, Takehiro Suzuki +4 more
2012Biochimica et Biophysica Acta35 citations Open access
Semantic Scholar
A novel protein in Photosystem II of a diatom Chaetoceros gracilis is one of the extrinsic proteins located on lumenal side and directly associates with PSII core components.
A. Okumura, R. Nagao, Takehiro Suzuki, S. Yamagoe +3 more
2008Biochimica et Biophysica Acta33 citations Open access
Semantic Scholar
Neutrophil activation and arteritis induced by C. albicans water-soluble mannoprotein-β-glucan complex (CAWS)
A. Ishida‐Okawara, N. Nagi-Miura, T. Oharaseki, Kei Takahashi +8 more
2007Experimental and molecular pathology (Print)33 citations Open access
Semantic Scholar
Comparison of binding and functional properties of two extrinsic components, Cyt c550 and a 12 kDa protein, in cyanobacterial PSII with those in red algal PSII.
I. Enami, M. Iwai, Ai Akiyama, Takehiro Suzuki +5 more
2003Plant and Cell Physiology33 citations
Semantic Scholar
Differential proteome analysis of serum proteins associated with the development of type 2 diabetes mellitus in the KK-A(y) mouse model using the iTRAQ technique.
E. Takahashi, A. Okumura, Hiroyuki Unoki-Kubota, H. Hirano +2 more
2013Journal of Proteomics28 citations
Semantic Scholar
Crystal structure of Psb31, a novel extrinsic protein of photosystem II from a marine centric diatom and implications for its binding and function.
R. Nagao, M. Suga, A. Niikura, A. Okumura +5 more
2013Biochemistry28 citations
Semantic Scholar
Proteomic analysis of serum biomarkers for prediabetes using the Long‐Evans Agouti rat, a spontaneous animal model of type 2 diabetes mellitus
E. Takahashi, Hiroyuki Unoki-Kubota, Yukiko Shimizu, T. Okamura +11 more
2017Journal of Diabetes Investigation24 citations Open access
Semantic Scholar
Comparison of brain urocortin-3 and corticotrophin-releasing factor for physiological responses in chicks.
Madoka Ogino, A. Okumura, M. I. Khan, M. Cline +1 more
2014Physiology and Behavior24 citations
Semantic Scholar
Urinary afamin levels are associated with the progression of diabetic nephropathy.
Y. Kaburagi, E. Takahashi, H. Kajio, S. Yamashita +10 more
2019Diabetes Research and Clinical Practice22 citations Open access
Semantic Scholar
Glycated Albumin Induces Activation of Activator Protein-1 in Retinal Glial Cells
A. Okumura, Y. Mitamura, K. Namekata, Kazuaki Nakamura +2 more
2007Japanese Journal of Ophthalmology21 citations
Semantic Scholar
Cloning, expression of the psbU gene, and functional studies of the recombinant 12-kDa protein of photosystem II from a red alga Cyanidium caldarium.
Hisataka Ohta, A. Okumura, Satoshi Okuyama, Ai Akiyama +5 more
1999Biochemical and Biophysical Research Communications - BBRC21 citations
Semantic Scholar
Crystal Structure of Human Leukocyte Cell-derived Chemotaxin 2 (LECT2) Reveals a Mechanistic Basis of Functional Evolution in a Mammalian Protein with an M23 Metalloendopeptidase Fold*
Hai Zheng, T. Miyakawa, Y. Sawano, A. Asano +3 more
2016Journal of Biological Chemistry20 citations Open access
Semantic Scholar
Synthesis, Absorption Spectra, and Photostability of Triarylmethane Dye Ethynylogues Containing Trifluoromethyl Group(s)
H. Muramatsu, A. Okumura, K. Shibata, M. Matsui
199420 citations
Semantic Scholar
Leukocyte cell‐derived chemotaxin 2 is a zinc‐binding protein
A. Okumura, Takehiro Suzuki, H. Miyatake, Tomoya Okabe +10 more
2013FEBS Letters19 citations Open access
Semantic Scholar
Effect of p75NTR on the regulation of photoreceptor apoptosis in the rd mouse.
Kazuaki Nakamura, C. Harada, A. Okumura, K. Namekata +5 more
2005Molecular Vision19 citations
Semantic Scholar
Identification and assignment of three disulfide bonds in mammalian leukocyte cell-derived chemotaxin 2 by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry.
A. Okumura, Takehiro Suzuki, N. Dohmae, Tomoya Okabe +5 more
2009BioScience Trends18 citations
Semantic Scholar
Identification of functional domains of the extrinsic 12 kDa protein in red algal PSII by limited rroteolysis and directed mutagenesis.
A. Okumura, Hisataka Ohta, Y. Inoue, I. Enami
2001Plant and Cell Physiology17 citations Open access
Semantic Scholar
Cell type‐specific transcriptome analysis unveils secreted signaling molecule genes expressed in apical epithelial cap during appendage regeneration
A. Okumura, T. Hayashi, M. Ebisawa, M. Yoshimura +4 more
2019Development, Growth and Differentiation15 citations
Semantic Scholar
Alleviation of lipopolysaccharide/d-galactosamine-induced liver injury in leukocyte cell-derived chemotaxin 2 deficient mice
A. Okumura, Takeshi Saito, M. Tobiume, Yuki Hashimoto +9 more
2017Biochemistry and Biophysics Reports12 citations Open access
Semantic Scholar
Effect of photoreceptor degeneration on RNA splicing and expression of AMPA receptors.
K. Namekata, A. Okumura, C. Harada, Kazuaki Nakamura +2 more
2006Molecular Vision12 citations
Semantic Scholar
Identification and characterization of a fibroblast growth factor gene in the planarian Dugesia japonica
Mohammad A. Auwal, Makoto Kashima, Osamu Nishimura, Kazutaka Hosoda +5 more
2020Development, Growth and Differentiation9 citations
Semantic Scholar
Aromatic structure of Tyrosine‐92 in the extrinsic PsbU protein of red algal Photosystem II is important for its functioning
A. Okumura, M. Sano, Takehiro Suzuki, Hiroyasu Tanaka +6 more
2007FEBS Letters9 citations
Semantic Scholar
Activator protein-1 in epiretinal membranes of patients with proliferative diabetic retinopathy
Yoshinori Mitamura, A. Okumura, C. Harada, K. Namekata +4 more
2005Diabetologia9 citations
Semantic Scholar
Reduced serum level of leukocyte cell-derived chemotaxin 2 is associated with the presence of diabetic retinopathy.
A. Okumura, Hiroyuki Unoki-Kubota, Natsuyo Yoshida-Hata, R. Yamamoto-Honda +8 more
2016Clinica chimica acta; international journal of clinical chemistry8 citations Open access
Semantic Scholar
Preparation and properties of polyacetylene membranes substituted with trifluoromethylated heterocyclic groups
Yoshio Hayakawa, Masakazu Nishida, A. Okumura, M. Matsui +1 more
19928 citations
Semantic Scholar
Fgf10 mutant newts regenerate normal hindlimbs despite severe developmental defects
Miyuki Suzuki, A. Okumura, Akane Chihara, Yuki Shibata +5 more
2024Proceedings of the National Academy of Sciences of the United States of America7 citations Open access
Semantic Scholar
Mac-2 binding protein glycosylation isomer, the FIB-4 index, and a combination of the two as predictors of non-alcoholic steatohepatitis
Kiyoaki Ito, Y. Sumida, Y. Nakade, A. Okumura +9 more
2022PLoS ONE7 citations Open access
Semantic Scholar
Electrostatic interaction of positive charges on the surface of Psb31 with photosystem II in the diatom Chaetoceros gracilis.
R. Nagao, Takehiro Suzuki, A. Okumura, T. Kihira +4 more
2017Biochimica et Biophysica Acta - Bioenergetics7 citations Open access
Semantic Scholar
Trends of hepatitis B virus genotype distribution in chronic hepatitis B patients in Japan
K. Sakamoto, Kiyoaki Ito, H. Yotsuyanagi, H. Yatsuhashi +23 more
2022Journal of gastroenterology6 citations
Semantic Scholar
Screening siRNAs against host glycosylation pathways to develop novel antiviral agents against hepatitis B virus
Kiyoaki Ito, Kiyohiko Angata, A. Kuno, A. Okumura +10 more
2020Hepatology Research6 citations
Semantic Scholar
Efficacy of measuring natural killer-activating receptor ligands to predict the pathogenesis of metabolic dysfunction-associated steatotic liver disease
Jun Arai, A. Okumura, Satoshi Kimoto, K. Sakamoto +8 more
2025Hepatology International5 citations
Semantic Scholar
Natural killer group 2D‐major histocompatibility complex class I polypeptide‐related sequence A activation enhances natural killer cell‐mediated immunity against hepatocellular carcinoma: A review
Jun Arai, A. Okumura, Naoya Kato, Kiyoaki Ito
2024Hepatology Research5 citations Open access
Semantic Scholar
Erratum to "Purification characterization of a stable oxygen-evolving Photosystem II complex from a marine centric diatom, Chaetoceros gracilis" [Biochim. Biophys. Acta 1797, (2010), 160-166]
R. Nagao, T. Tomo, E. Noguchi, Saori Nakajima +6 more
20104 citations Open access
Semantic Scholar
The inbred newt genome unveils molecular mechanisms of behavior, development, and regeneration in urodele amphibians
Yuki Kimura, Miyuki Suzuki, A. Okumura, Masatoshi Matsunami +26 more
2025iScience3 citations Open access
Semantic Scholar
Molecular mechanisms of hepatitis B virus entry inhibition by a bile acid derivative INT-767 binding to the preS1 region.
A. Okumura, Yukiko Muraki, Jun Arai, Sayaka Nishimura +13 more
2025Antiviral Research3 citations Open access
Semantic Scholar
Protocols for transgenesis at a safe harbor site in the Xenopus laevis genome using CRISPR-Cas9
Yuki Shibata, A. Okumura, M. Mochii, Ken-ichi T. Suzuki
2023STAR Protocols3 citations Open access
Semantic Scholar

Frequent co-authors

Invite them to SciRah by sharing their profile.

I. Enami×15
Invite
I. Enami — researcher profile on SciRah
Takehiro Suzuki×15
Invite
Takehiro Suzuki — researcher profile on SciRah
R. Nagao×11
Invite
R. Nagao — researcher profile on SciRah
Jian-Ren Shen×9
Invite
Jian-Ren Shen — researcher profile on SciRah

×9

Invite

S. Yamagoe — researcher profile on SciRah

Invite

M. Iwai — researcher profile on SciRah

Invite

T. Harada — researcher profile on SciRah

Invite

C. Harada — researcher profile on SciRah

Invite

K. Namekata — researcher profile on SciRah

Invite

T. Tomo — researcher profile on SciRah

Hiroyuki Unoki-Kubota×7

Invite

Hiroyuki Unoki-Kubota — researcher profile on SciRah

Invite

Y. Kaburagi — researcher profile on SciRah