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Hiroki Kato

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Positron-Emission Tomography

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Tadashi Watabe; Kohei Hanaoka; Kayako Isohashi; Yasukazu Kanai; Hiroki Kato; Eku Shimosegawa; Mitsuaki Tatsumi; Takashi Ueguchi; Hiroshi Watabe; Jun Hatazawa
Quantitative evaluation of cerebral blood flow and oxygen metabolism in normal anesthetized rats: 15O-labeled gas inhalation PET with MRI Fusion.
Kayako Isohashi; Yasukazu Kanai; Hiroki Kato; Sadahiro Naka; Eku Shimosegawa; Hiroshi Watabe; Koichi Fujino; Jun Hatazawa
Optimization of [11C]methionine PET study: appropriate scan timing and effect of plasma amino acid concentrations on the SUV.
Hiroki Kato; K Matsuda; Eku Shimosegawa; K Baba; M Imaizumi; K Isohashi; Jun Hatazawa
MR imaging-based correction for partial volume effect improves detectability of intractable epileptogenic foci on iodine 123 iomazenil brain SPECT images: an extended study with a larger sample size.

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2013: Tadashi Watabe; Kohei Hanaoka; Kayako Isohashi; Yasukazu Kanai; Hiroki Kato; Eku Shimosegawa; Mitsuaki Tatsumi; Takashi Ueguchi; Hiroshi Watabe; Jun Hatazawa
Quantitative evaluation of cerebral blood flow and oxygen metabolism in normal anesthetized rats: 15O-labeled gas inhalation PET with MRI Fusion.
Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2013;54(2):283-90.
2013: Kayako Isohashi; Yasukazu Kanai; Hiroki Kato; Sadahiro Naka; Eku Shimosegawa; Hiroshi Watabe; Koichi Fujino; Jun Hatazawa
Optimization of [11C]methionine PET study: appropriate scan timing and effect of plasma amino acid concentrations on the SUV.
EJNMMI research 2013;3(1):27.
2012: Hiroki Kato; K Matsuda; Eku Shimosegawa; K Baba; M Imaizumi; K Isohashi; Jun Hatazawa
MR imaging-based correction for partial volume effect improves detectability of intractable epileptogenic foci on iodine 123 iomazenil brain SPECT images: an extended study with a larger sample size.
AJNR. American journal of neuroradiology 2012;33(11):2088-94.
2012: Hiroki Kato; H Kazui; N Kimura; Eku Shimosegawa; K Isohashi; Jun Hatazawa
Distribution of cortical benzodiazepine receptor binding in right-handed healthy humans: a voxel-based statistical analysis of iodine 123 iomazenil SPECT with partial volume correction.
AJNR. American journal of neuroradiology 2012;33(8):1458-63.
2012: Masahiro Yanagawa; Yuichiro Doki; Kayako Isohashi; Hiroki Kato; Hiroshi Miyata; Masaki Mori; Eiichi Morii; Eku Shimosegawa; Mitsuaki Tatsumi; Noriyuki Tomiyama; Tadashi Watabe; Makoto Yamasaki; Jun Hatazawa
Evaluation of response to neoadjuvant chemotherapy for esophageal cancer: PET response criteria in solid tumors versus response evaluation criteria in solid tumors.
Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2012;53(6):872-80.
2012: Tadashi Watabe; Masahiro Yanagawa; Kayako Isohashi; Hiroki Kato; Eku Shimosegawa; Mitsuaki Tatsumi; Hiroshi Watabe; Jun Hatazawa
Intratumoral heterogeneity of F-18 FDG uptake differentiates between gastrointestinal stromal tumors and abdominal malignant lymphomas on PET/CT.
Annals of nuclear medicine 2012;26(3):222-7.
2010: Tohru Miyake; Takashi Satoh; Hiroki Kato; Kazufumi Matsushita; Yutaro Kumagai; Alexis Vandenbon; Tohru Tani; Tatsushi Muta; Shizuo Akira; Osamu Takeuchi
IκBζ is essential for natural killer cell activation in response to IL-12 and IL-18.
Proceedings of the National Academy of Sciences of the United States of America 2010;107(41):17680-5.
2010: Yasuyuki Kimura; Kazuo Kitagawa; Naohiko Oku; Katsufumi Kajimoto; Hiroki Kato; Makiko Tanaka; Manabu Sakaguchi; Hidetaka Hougaku; Saburo Sakoda; Jun Hatazawa
Blood pressure lowering with valsartan is associated with maintenance of cerebral blood flow and cerebral perfusion reserve in hypertensive patients with cerebral small vessel disease.
Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association 2010;19(2):85-91.
2010: Kazuya Nakajo; Mitsuaki Tatsumi; Atsuo Inoue; Kayako Isohashi; Ichiro Higuchi; Hiroki Kato; Masao Imaizumi; Takayuki Enomoto; Eku Shimosegawa; Tadashi Kimura; Jun Hatazawa
Diagnostic performance of fluorodeoxyglucose positron emission tomography/magnetic resonance imaging fusion images of gynecological malignant tumors: comparison with positron emission tomography/computed tomography.
Japanese journal of radiology 2010;28(2):95-100.
2010: Takashi Satoh; Hiroki Kato; Yutaro Kumagai; Mitsutoshi Yoneyama; Shintaro Sato; Kazufumi Matsushita; Tohru Tsujimura; Takashi Fujita; Shizuo Akira; Osamu Takeuchi
LGP2 is a positive regulator of RIG-I- and MDA5-mediated antiviral responses.
Proceedings of the National Academy of Sciences of the United States of America 2010;107(4):1512-7.
2009: Tatsukata Kawagoe; Osamu Takeuchi; Yoshitsugu Takabatake; Hiroki Kato; Yoshitaka Isaka; Tohru Tsujimura; Shizuo Akira
TANK is a negative regulator of Toll-like receptor signaling and is critical for the prevention of autoimmune nephritis.
Nature immunology 2009;10(9):965-72.
2009: Kazufumi Matsushita; Osamu Takeuchi; Daron M Standley; Yutaro Kumagai; Tatsukata Kawagoe; Tohru Miyake; Takashi Satoh; Hiroki Kato; Tohru Tsujimura; Haruki Nakamura; Shizuo Akira
Zc3h12a is an RNase essential for controlling immune responses by regulating mRNA decay.
Nature 2009;458(7242):1185-90.
2008: Yasuyuki Kimura; Kazuo Kitagawa; Naohiko Oku; Katsufumi Kajimoto; Hiroki Kato; Makiko Tanaka; Manabu Sakaguchi; Hidetaka Hougaku; Saburo Sakoda; Jun Hatazawa
Hemodynamic influences of azelnidipine, a novel calcium channel blocker, on cerebral circulation in hypertensive patients with ischemic white matter lesions.
Hypertension research : official journal of the Japanese Society of Hypertension 2008;31(12):2147-54.
2008: Makiko Tanaka; Eku Shimosegawa; Katsufumi Kajimoto; Yasuyuki Kimura; Hiroki Kato; Naohiko Oku; Masatsugu Hori; Kazuo Kitagawa; Jun Hatazawa
Chronic middle cerebral artery occlusion: a hemodynamic and metabolic study with positron-emission tomography.
AJNR. American journal of neuroradiology 2008;29(10):1841-6.
2008: Hiroki Kato; Osamu Takeuchi; Eriko Mikamo-Satoh; Reiko Hirai; Tomoji Kawai; Kazufumi Matsushita; Akane Hiiragi; Terence S Dermody; Takashi Fujita; Shizuo Akira
Length-dependent recognition of double-stranded ribonucleic acids by retinoic acid-inducible gene-I and melanoma differentiation-associated gene 5.
The Journal of experimental medicine 2008;205(7):1601-10.
2008: Hiroki Kato; Eku Shimosegawa; Naohiko Oku; Kazuo Kitagawa; Haruhiko Kishima; Youichi Saitoh; Amami Kato; Toshiki Yoshimine; Jun Hatazawa
MRI-based correction for partial-volume effect improves detectability of intractable epileptogenic foci on 123I-iomazenil brain SPECT images.
Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2008;49(3):383-9.
2008: Hiroki Kato; Takuya Yoshikawa; Naohiko Oku; Masao Imaizumi; Masashi Takasawa; Yasuyuki Kimura; Katsufumi Kajimoto; Makiko Tanaka; Kazuo Kitagawa; Masatsugu Hori; Jun Hatazawa
Statistical parametric analysis of cerebral blood flow in vascular dementia with small-vessel disease using Tc-HMPAO SPECT.
Cerebrovascular diseases (Basel, Switzerland) 2008;26(5):556-62.
2008: Hiroki Kato; Eku Shimosegawa; Naohiko Oku; Yasuyuki Kimura; Katsufumi Kajimoto; Makiko Tanaka; Masatsugu Hori; Kazuo Kitagawa; Jun Hatazawa
Cerebral hemodynamics and oxygen metabolism in patients with moyamoya syndrome associated with atherosclerotic steno-occlusive arterial lesions.
Cerebrovascular diseases (Basel, Switzerland) 2008;26(1):9-15.
2008: Andreas Jung; Hiroki Kato; Yutaro Kumagai; Himanshu Kumar; Taro Kawai; Osamu Takeuchi; Shizuo Akira
Lymphocytoid choriomeningitis virus activates plasmacytoid dendritic cells and induces a cytotoxic T-cell response via MyD88.
Journal of virology 2008;82(1):196-206.
2007: Yutaro Kumagai; Osamu Takeuchi; Hiroki Kato; Himanshu Kumar; Kosuke Matsui; Eiichi Morii; Katsuyuki Aozasa; Taro Kawai; Shizuo Akira
Alveolar macrophages are the primary interferon-alpha producer in pulmonary infection with RNA viruses.
Immunity 2007;27(2):240-52.
2007: Tatsukata Kawagoe; Shintaro Sato; Andreas Jung; Masahiro Yamamoto; Kosuke Matsui; Hiroki Kato; Satoshi Uematsu; Osamu Takeuchi; Shizuo Akira
Essential role of IRAK-4 protein and its kinase activity in Toll-like receptor-mediated immune responses but not in TCR signaling.
The Journal of experimental medicine 2007;204(5):1013-24.
2007: Katsufumi Kajimoto; Naohiko Oku; Yasuyuki Kimura; Hiroki Kato; Makiko Rai Tanaka; Yasukazu Kanai; Kazuo Kitagawa; Motohiko Maruno; Toshiki Yoshimine; Masatsugu Hori; Jun Hatazawa
Crossed cerebellar diaschisis: a positron emission tomography study with L-[methyl-11C]methionine and 2-deoxy-2-[18F]fluoro-D-glucose.
Annals of nuclear medicine 2007;21(2):109-13.
2006: Kosuke Matsui; Yutaro Kumagai; Hiroki Kato; Shintaro Sato; Tatsukata Kawagoe; Satoshi Uematsu; Osamu Takeuchi; Shizuo Akira
Cutting edge: Role of TANK-binding kinase 1 and inducible IkappaB kinase in IFN responses against viruses in innate immune cells.
Journal of immunology (Baltimore, Md. : 1950) 2006;177(9):5785-9.
2006: Satoshi Uematsu; Myoung Ho Jang; Nicolas Chevrier; Zijin Guo; Yutaro Kumagai; Masahiro Yamamoto; Hiroki Kato; Nagako Sougawa; Hidenori Matsui; Hirotaka Kuwata; Hiroaki Hemmi; Cevayir Coban; Taro Kawai; Ken J Ishii; Osamu Takeuchi; Masayuki Miyasaka; Kiyoshi Takeda; Shizuo Akira
Detection of pathogenic intestinal bacteria by Toll-like receptor 5 on intestinal CD11c+ lamina propria cells.
Nature immunology 2006;7(8):868-74.
2006: Hiroki Kato; Osamu Takeuchi; Shizuo Akira
[Cell type specific involvement of RIG-I in antiviral responses].
Nihon rinsho. Japanese journal of clinical medicine 2006;64(7):1244-7.
2006: Hiroki Kato; Osamu Takeuchi; Shintaro Sato; Mitsutoshi Yoneyama; Masahiro Yamamoto; Kosuke Matsui; Satoshi Uematsu; Andreas Jung; Taro Kawai; Ken J Ishii; Osamu Yamaguchi; Kinya Otsu; Tohru Tsujimura; Chang-Sung Koh; Caetano Reis e Sousa; Yoshiharu Matsuura; Takashi Fujita; Shizuo Akira
Differential roles of MDA5 and RIG-I helicases in the recognition of RNA viruses.
Nature 2006;441(7089):101-5.
2006: Ken J Ishii; Cevayir Coban; Hiroki Kato; Ken Takahashi; Yuichi Torii; Fumihiko Takeshita; Holger Ludwig; Gerd Sutter; Koichi Suzuki; Hiroaki Hemmi; Shintaro Sato; Masahiro Yamamoto; Satoshi Uematsu; Taro Kawai; Osamu Takeuchi; Shizuo Akira
A Toll-like receptor-independent antiviral response induced by double-stranded B-form DNA.
Nature immunology 2006;7(1):40-8.
2005: Taro Kawai; Ken Takahashi; Shintaro Sato; Cevayir Coban; Himanshu Kumar; Hiroki Kato; Ken J Ishii; Osamu Takeuchi; Shizuo Akira
IPS-1, an adaptor triggering RIG-I- and Mda5-mediated type I interferon induction.
Nature immunology 2005;6(10):981-8.
2005: Hiroki Kato; Shintaro Sato; Mitsutoshi Yoneyama; Masahiro Yamamoto; Satoshi Uematsu; Kosuke Matsui; Tohru Tsujimura; Kiyoshi Takeda; Takashi Fujita; Osamu Takeuchi; Shizuo Akira
Cell type-specific involvement of RIG-I in antiviral response.
Immunity 2005;23(1):19-28.
2005: Satoshi Uematsu; Shintaro Sato; Masahiro Yamamoto; Tomonori Hirotani; Hiroki Kato; Fumihiko Takeshita; Michiyuki Matsuda; Cevayir Coban; Ken J Ishii; Taro Kawai; Osamu Takeuchi; Shizuo Akira
Interleukin-1 receptor-associated kinase-1 plays an essential role for Toll-like receptor (TLR)7- and TLR9-mediated interferon-{alpha} induction.
The Journal of experimental medicine 2005;201(6):915-23.