User profiles for Naoki Kawachi
Naoki KawachiNational Institutes for Quantum Science and Technology (QST) Verified email at qst.go.jp Cited by 2587 |
Tracing cadmium from culture to spikelet: noninvasive imaging and quantitative characterization of absorption, transport, and accumulation of cadmium in an intact rice …
We characterized the absorption and short-term translocation of cadmium (Cd) in rice (Oryza
sativa ‘Nipponbare’) quantitatively using serial images observed with a positron-emitting …
sativa ‘Nipponbare’) quantitatively using serial images observed with a positron-emitting …
[HTML][HTML] Real-time imaging and analysis of differences in cadmium dynamics in rice cultivars (Oryza sativa) using positron-emitting107Cd tracer
…, S Ishii, M Igura, T Abe, M Kuramata, N Kawachi… - BMC Plant …, 2011 - Springer
Background Rice is a major source of dietary intake of cadmium (Cd) for populations that
consume rice as a staple food. Understanding how Cd is transported into grains through the …
consume rice as a staple food. Understanding how Cd is transported into grains through the …
[HTML][HTML] First demonstration of multi-color 3-D in vivo imaging using ultra-compact Compton camera
…, Y Nagao, K Kurita, M Yamaguchi, N Kawachi… - Scientific reports, 2017 - nature.com
In the field of nuclear medicine, single photon emission tomography and positron emission
tomography are the two most common techniques in molecular imaging, but the available …
tomography are the two most common techniques in molecular imaging, but the available …
[HTML][HTML] Kinetic analysis of zinc/cadmium reciprocal competitions suggests a possible Zn-insensitive pathway for root-to-shoot cadmium translocation in rice
…, B Dendena, YG Yin, A Ferri, S Ishii, N Kawachi… - Rice, 2016 - Springer
Background Among cereals, rice has a genetic propensity to accumulate high levels of
cadmium (Cd) in grains. Xylem-mediated root-to-shoot translocation rather than root uptake has …
cadmium (Cd) in grains. Xylem-mediated root-to-shoot translocation rather than root uptake has …
Application of glutathione to roots selectively inhibits cadmium transport from roots to shoots in oilseed rape
…, NS Ishioka, S Ito-Tanabata, N Kawachi… - Journal of …, 2013 - academic.oup.com
Glutathione is a tripeptide involved in various aspects of plant metabolism. This study
investigated the effects of the reduced form of glutathione (GSH) applied to specific organs (source …
investigated the effects of the reduced form of glutathione (GSH) applied to specific organs (source …
[HTML][HTML] From Laboratory to Field: OsNRAMP5-Knockdown Rice Is a Promising Candidate for Cd Phytoremediation in Paddy Fields
Previously, we reported that OsNRAMP5 functions as a manganese, iron, and cadmium (Cd)
transporter. The shoot Cd content in OsNRAMP5 RNAi plants was higher than that in wild-…
transporter. The shoot Cd content in OsNRAMP5 RNAi plants was higher than that in wild-…
Imaging of 99mTc-DMSA and 18F-FDG in humans using a Si/CdTe Compton camera
…, H Odaka, T Kamiya, N Kawachi… - Physics in Medicine …, 2020 - iopscience.iop.org
The Compton camera can simultaneously acquire images of multiple isotopes injected in a
body; therefore, it has the potential to introduce a new subfield in the field of biomedical …
body; therefore, it has the potential to introduce a new subfield in the field of biomedical …
Nitrate facilitates cadmium uptake, transport and accumulation in the hyperaccumulator Sedum plumbizincicola
The aims of this study are to investigate whether and how the nitrogen form (nitrate (NO 3 –
) versus ammonium (NH 4 + )) influences cadmium (Cd) uptake and translocation and …
) versus ammonium (NH 4 + )) influences cadmium (Cd) uptake and translocation and …
Secondary-electron-bremsstrahlung imaging for proton therapy
A feasibility study on an imaging technique of a therapeutic proton-beam trajectory using a
gamma camera by measuring secondary electron bremsstrahlung (SEB) was performed by …
gamma camera by measuring secondary electron bremsstrahlung (SEB) was performed by …
Rapid Quantitative Measurement of CMRO2 and CBF by Dual Administration of 15O-Labeled Oxygen and Water During a Single PET Scan—a Validation Study and …
…, N Teramoto, H Watabe, N Kawachi… - Journal of Cerebral …, 2005 - journals.sagepub.com
Cerebral blood flow (CBF) and rate of oxygen metabolism (CMRO 2 ) may be quantified
using positron emission tomography (PET) with 15 O-tracers, but the conventional three-step …
using positron emission tomography (PET) with 15 O-tracers, but the conventional three-step …