A decade in the MIST: learnings from investigations of drug metabolites in drug development under the “metabolites in safety testing” regulatory guidance

…, C Funk, CECA Hop, WG Humphreys, F Igarashi… - Drug Metabolism and …, 2018 - ASPET
Since the introduction of metabolites in safety testing (MIST) guidance by the Food and Drug
Administration in 2008, major changes have occurred in the experimental methods for the …

[HTML][HTML] A Halloween gene noppera-bo encodes a glutathione S-transferase essential for ecdysteroid biosynthesis via regulating the behaviour of cholesterol in …

S Enya, T Ameku, F Igarashi, M Iga, H Kataoka… - Scientific reports, 2014 - nature.com
In insects, the precise timing of moulting and metamorphosis is strictly guided by ecdysteroids
that are synthesised from dietary cholesterol in the prothoracic gland (PG). In the past …

The silkworm glutathione S-transferase gene noppera-bo is required for ecdysteroid biosynthesis and larval development

S Enya, T Daimon, F Igarashi, H Kataoka… - Insect biochemistry and …, 2015 - Elsevier
Insect molting and metamorphosis are tightly controlled by ecdysteroids, which are important
steroid hormones that are synthesized from dietary sterols in the prothoracic gland. One of …

Cholesterol internalization and metabolism in insect prothoracic gland, a steroidogenic organ, via lipoproteins

F Igarashi, MH Ogihara, M Iga, H Kataoka - Steroids, 2018 - Elsevier
Dietary sterols including cholesterol and phytosterols are essential substrates for insect steroid
hormone (ecdysteroid) synthesis in the prothoracic glands (PGs). In the silkworm Bombyx …

A highly specific and sensitive quantification analysis of the sterols in silkworm larvae by high performance liquid chromatography–atmospheric pressure chemical …

F Igarashi, J Hikiba, MH Ogihara, T Nakaoka… - Analytical …, 2011 - Elsevier
The biochemical quantification of sterols in insects has been difficult because only small
amounts of tissues can be obtained from insect bodies and because sterol metabolites are …

Main contribution of UGT1A1 and CYP2C9 in the metabolism of UR-1102, a novel agent for the treatment of gout

M Yamane, F Igarashi, T Yamauchi, T Nakagawa - Xenobiotica, 2021 - Taylor & Francis
UR-1102, a novel uricosuric agent for treating gout, has been confirmed to exhibit a
pharmacological effect in patients. We clarified its metabolic pathway, estimated the contribution of …

Analysis of Non-linear Pharmacokinetics of P-Glycoprotein Substrates in a Microfluidic Device Using a Mathematical Model that Includes an Unstirred Water Layer …

F Igarashi, T Nakagawa, Y Shinohara… - Pharmaceutical …, 2021 - Springer
Purpose The purpose of this research is to analyze non-linear pharmacokinetics of P-glycoprotein
(P-gp) substrates in a cell based assay of a microfluidic device, which might be …

[CITATION][C] Laser Fourier morphometry on cell surface with micro‐spheres bound by means of antigen‐antibody reaction to specific sites assisted by computer …

T Hayashi, Y Yoshimuta, F Igarashi… - … on Form I, 1986 - KTK Scientific Publishers

[CITATION][C] Kore wa minshuto da

I Fumihiko - Jiritsu to kyosei no shimin chushin-gata shakai e, 1996

[CITATION][C] Ohkurashou Kaitairon

F Igarashi - 2010), Seiken. Tokyo: Nihon Keizai Shinbunsha., Kenji …, 1995