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Resolution limits of quantum ghost imaging [PDF]

, 2018
Quantum ghost imaging uses photon pairs produced from parametric downconversion to enable an alternative method of image acquisition. Information from either one of the photons does not yield an image, but an image can be obtained by harnessing the ...
Aspden, Reuben S., Boyd, Robert W., Gregory, Thomas, Moreau, Paul-Antoine, Morris, Peter A., Padgett, Miles, Spalding, Gabriel, Toninelli, Ermes   +7 more
core   +2 more sources

Experimental quantum imaging distillation with undetected light. [PDF]

Sci Adv, 2023
Fuenzalida J, Gilaberte Basset M, Töpfer S, Torres JP, Gräfe M.   +4 more
europepmc   +3 more sources

Distribution of intraperitoneally administered deuterium-labeled water in aquaporin-4-knockout mouse brain after middle cerebral artery occlusion

Frontiers in Neuroscience, 2023
IntroductionAs the movement of water in the brain is known to be involved in neural activity and various brain pathologies, the ability to assess water dynamics in the brain will be important for the understanding of brain function and the diagnosis and ...
Takuya Urushihata, Takuya Urushihata, Hiroyuki Takuwa, Hiroyuki Takuwa, Manami Takahashi, Manami Takahashi, Manami Takahashi, Jeff Kershaw, Sayaka Shibata, Nobuhiro Nitta, Yasuhiko Tachibana, Masato Yasui, Makoto Higuchi, Takayuki Obata   +13 more
doaj   +1 more source

Exploring cell membrane water exchange in aquaporin-4-deficient ischemic mouse brain using diffusion-weighted MRI

European Radiology Experimental, 2021
Background Aquaporin-4 is a membrane channel protein that is highly expressed in brain astrocytes and facilitates the transport of water molecules. It has been suggested that suppression of aquaporin-4 function may be an effective treatment for reducing ...
Takuya Urushihata, Hiroyuki Takuwa, Manami Takahashi, Jeff Kershaw, Yasuhiko Tachibana, Nobuhiro Nitta, Sayaka Shibata, Masato Yasui, Makoto Higuchi, Takayuki Obata   +9 more
doaj   +1 more source

Power-law scaling of correlations in statistically polarised nano-NMR

npj Quantum Information, 2022
Diffusion noise is a major source of spectral line broadening in liquid state nano-scale nuclear magnetic resonance with shallow nitrogen-vacancy centres, whose main consequence is a limited spectral resolution.
Nicolas Staudenmaier, Anjusha Vijayakumar-Sreeja, Santiago Oviedo-Casado, Genko Genov, Daniel Cohen, Daniel Dulog, Thomas Unden, Nico Striegler, Alastair Marshall, Jochen Scheuer, Christoph Findler, Johannes Lang, Ilai Schwartz, Philipp Neumann, Alex Retzker, Fedor Jelezko   +15 more
doaj   +1 more source

Measurement of Striatal Dopamine Release Induced by Neuropsychological Stimulation in Positron Emission Tomography With Dual Injections of [11C]Raclopride

Frontiers in Psychiatry, 2022
ObjectivesPositron emission tomography (PET) with [11C]raclopride has been applied to measure changes in the concentration of endogenous dopamine induced by pharmacological challenge or neuropsychological stimulation by evaluating the binding potential ...
Yoko Ikoma, Yasuyuki Kimura, Yasuyuki Kimura, Makiko Yamada, Takayuki Obata, Tetsuya Suhara, Hiroshi Ito, Hiroshi Ito   +7 more
doaj   +1 more source

Increased glutamate and glutamine levels and their relationship to astrocytes and dopaminergic transmissions in the brains of adults with autism

Scientific Reports, 2023
Increased excitatory neuronal tones have been implicated in autism, but its mechanism remains elusive. The amplified glutamate signals may arise from enhanced glutamatergic circuits, which can be affected by astrocyte activation and suppressive signaling
Masaki Oya, Kiwamu Matsuoka, Manabu Kubota, Junya Fujino, Shisei Tei, Keisuke Takahata, Kenji Tagai, Yasuharu Yamamoto, Hitoshi Shimada, Chie Seki, Takashi Itahashi, Yuta Y. Aoki, Haruhisa Ohta, Ryu-ichiro Hashimoto, Genichi Sugihara, Takayuki Obata, Ming-Rong Zhang, Tetsuya Suhara, Motoaki Nakamura, Nobumasa Kato, Yuhei Takado, Hidehiko Takahashi, Makoto Higuchi   +22 more
doaj   +1 more source

Selective dysfunction of fast-spiking inhibitory interneurons and disruption of perineuronal nets in a tauopathy mouse model

iScience, 2023
Summary: In Alzheimer’s disease (AD), network hyperexcitability is frequently observed and associated with subsequent cognitive impairment. Dysfunction of inhibitory interneurons (INs) is thought to be one of the key biological mechanisms of ...
Takehiro Kudo, Hiroyuki Takuwa, Manami Takahashi, Takuya Urushihata, Masafumi Shimojo, Kazuaki Sampei, Mitsugu Yamanaka, Yutaka Tomita, Naruhiko Sahara, Tetsuya Suhara, Makoto Higuchi   +10 more
doaj   +1 more source

Chemogenetic attenuation of cortical seizures in nonhuman primates

Nature Communications, 2023
Pharmacological and surgical treatments of epilepsy can have unsatisfactory outcomes, so a more targeted and on-demand approach is desirable. Here, the authors demonstrate the usage of inhibitory chemogenetics in male nonhuman primates to attenuate the ...
Naohisa Miyakawa, Yuji Nagai, Yukiko Hori, Koki Mimura, Asumi Orihara, Kei Oyama, Takeshi Matsuo, Ken-ichi Inoue, Takafumi Suzuki, Toshiyuki Hirabayashi, Tetsuya Suhara, Masahiko Takada, Makoto Higuchi, Keisuke Kawasaki, Takafumi Minamimoto   +14 more
doaj   +1 more source

Targeted Delivery of Chemogenetic Adeno-Associated Viral Vectors to Cortical Sulcus Regions in Macaque Monkeys by Handheld Injections

Bio-Protocol, 2023
Recent advancements in chemogenetic tools, such as designer receptors exclusively activated by designer drugs (DREADDs), allow the simultaneous manipulation of activity over a specific, broad brain region in nonhuman primates.
Kei Oyama, Yuji Nagai, Takafumi Minamimoto   +2 more
doaj   +1 more source