Demonstration of docosahexaenoic acid as a bioavailability enhancer for CYP3A substrates: in vitro and in vivo evidence using cyclosporin in rats

V Hirunpanich, J Katagi, B Sethabouppha… - Drug metabolism and …, 2006 - ASPET
To investigate the pharmacokinetic interaction between cyclosporin A (CsA) and docosahexaenoic
acid (DHA) in vivo, 5 mg/kg CsA was orally or intravenously coadministered with …

Comparative study of the zebrafish embryonic toxicity test and mouse embryonic stem cell test to screen developmental toxicity of human pharmaceutical drugs

…, K Kayasuga, M Morihara, J Katagi… - Fundamental …, 2016 - jstage.jst.go.jp
According to International Conference on Harmonization guidelines, each drug in
development for administration to women of child-bearing potential must be tested for possible …

Why Can dl-Sotalol Prolong the QT Interval In Vivo Despite Its Weak Inhibitory Effect on hERG K+ Channels In Vitro? Electrophysiological and Pharmacokinetic …

J Katagi, Y Nakamura, X Cao, H Ohara, A Honda… - Cardiovascular …, 2016 - Springer
In order to bridge the gap of action of dl-sotalol between the human ether-a-go-go-related
gene (hERG) K + channel inhibition in vitro and QT-interval prolongation in vivo, its …

Utility of human hepatocyte spheroids for evaluation of hepatotoxicity

T Ogihara, H Iwai, Y Inoue, J Katagi… - Fundamental …, 2015 - jstage.jst.go.jp
Drug-induced hepatotoxicity is a common reason for discontinuing the development of
candidate clinical drugs. In the present study, we investigated the utility of three-dimensionally …

Coactivation of secretogranin-II and BDNF genes mediated by calcium signals in mouse cerebellar granule cells

Y Fujita, J Katagi, A Tabuchi, T Tsuchiya… - Molecular brain …, 1999 - Elsevier
In primary culture of mouse cerebellar granule cells, the brain-derived neurotrophic factor (BDNF)
gene is activated in an activity-dependent manner, accompanying Ca 2+ influx into …

Evaluation of using dogs to predict fraction of oral dose absorbed in humans for poorly water-soluble drugs

N Matsumura, Y Yamaura, J Katagi, S Ono… - Journal of …, 2018 - Elsevier
Dogs have been widely used to study the oral absorption of a drug in drug discovery. However,
there has been no quantitative validation of using dogs to predict the fraction of oral dose …

Discovery of new orally active prostaglandin D2 receptor antagonists

…, F Nambu, R Oumi, Y Odagaki, J Katagi… - Bioorganic & medicinal …, 2011 - Elsevier
To identify an orally available drug candidate, a series of 3-benzoylaminophenylacetic acids
were synthesized and evaluated as prostaglandin D 2 (PGD 2 ) receptor antagonists. Some …

Design, synthesis, and biological evaluation of novel somatostatin receptor subtype-2 agonists: Optimization for potency and risk mitigation of hERG and …

…, T Komagata, M Iwaki, H Miyata, J Katagi… - Bioorganic & Medicinal …, 2021 - Elsevier
Somatostatin receptors are members of G-protein coupled receptor superfamily. Receptors
can be classified into five subtypes, SSTR1 to 5. The highly potent and orally active SSTR2 …

Cardiohemodynamic and electrophysiological effects of a selective EP4 receptor agonist ONO-AE1-329 in the halothane-anesthetized dogs

…, Y Nakamura, X Cao, A Honda, J Katagi… - European Journal of …, 2015 - Elsevier
Cardiovascular effects of a highly selective prostaglandin E 2 type 4 (EP 4 ) receptor agonist
ONO-AE1-329 were assessed with the halothane-anesthetized dogs (n=6). ONO-AE1-329 …

Effects of a prostagrandin EP4-receptor agonist ONO-AE1-329 on the left ventricular pressure-volume relationship in the halothane-anesthetized dogs

…, H Ohara, X Cao, H Nomura, J Katagi… - European Journal of …, 2016 - Elsevier
Cardiac effects of a prostagrandin EP4-receptor agonist ONO-AE1-329 were assessed in
the halothane-anesthetized dogs under the monitoring of left ventricular pressure-volume …