{"title":"[Bio-nanoparticle: Making and Measurement].","authors":"Eisuke Kanao","doi":"10.1248/yakushi.24-00186-3","DOIUrl":"https://doi.org/10.1248/yakushi.24-00186-3","url":null,"abstract":"<p><p>Bio-related nanoparticles are key players in intercellular communication and represent the ultimate goal of nanotechnology as material-transport systems. Biological membranes support the functionality of bio-related nanoparticles; therefore, understanding the correlation between membrane molecular characteristics and the functions of bioparticles is essential. In this study, we developed foundational technologies for measuring the biological membranes of bioparticles by integrating fields such as separation science, materials chemistry, and omics. Furthermore, we developed a new methodology for incorporating the functions of natural bioparticles into artificial nanomaterials.</p>","PeriodicalId":23810,"journal":{"name":"Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan","volume":"145 6","pages":"533-537"},"PeriodicalIF":0.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144200206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Performance Evaluation of High-performance Liquid Chromatography Instrument in Determining the Serum Concentration of Linezolid].","authors":"Naoaki Hashimoto, Shino Tsuda, Tomoka Kusama, Yuji Mukai, Ryuto Shioya, Mikiro Kato, Norihiko Terada, Miyuki Matsushita, Satoru Morikawa, Hideki Hashimoto, Masato Homma, Hiromichi Suzuki","doi":"10.1248/yakushi.24-00213","DOIUrl":"https://doi.org/10.1248/yakushi.24-00213","url":null,"abstract":"<p><p>LM1010, a high-performance liquid chromatography system for therapeutic drug monitoring (TDM) of various agents in clinical practice, is currently approved in Japan. Unlike conventional systems, LM1010 can rapidly measure clinical samples, and data analysis is based on the absolute calibration curve method and fully automated. However, the analytical performance of the LM1010 for the measurement of serum concentrations of linezolid (LZD) has not yet been evaluated. In this study, we aimed to evaluate the analytical performance of LM1010 and confirm the long-term stability of LZD at -30°C. One hundred forty-eight serum samples were collected from 25 patients (17 men and 8 women) who received LZD. Serum concentrations of LZD were measured using LM1010 and liquid chromatography-tandem mass spectrometry (LC-MS/MS). Three LM1010 instruments were used to confirm the differences in the measured values. A Passing-Bablok regression analysis demonstrated a strong correlation between LM1010 and LC-MS/MS (r=0.991), and comparable results were observed among the three LM1010 instruments (r=0.982-0.998). Bland-Altman analyses revealed that the average difference between LM1010 and LC-MS/MS methods was 1.7%, and similar results were observed among the three LM1010 instruments. The long-term stability of serum LZD in samples stored at -30°C for 48 weeks was also confirmed. These results suggest that LM1010 can be used for TDM of LZD in clinical practice.</p>","PeriodicalId":23810,"journal":{"name":"Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan","volume":"145 6","pages":"553-560"},"PeriodicalIF":0.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144200216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Elucidation of the Mechanisms of RNA Diseases and Manipulation of RNA].","authors":"Miki Imanishi, Hitomi Tsuiji","doi":"10.1248/yakushi.24-00209-F","DOIUrl":"https://doi.org/10.1248/yakushi.24-00209-F","url":null,"abstract":"","PeriodicalId":23810,"journal":{"name":"Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan","volume":"145 7","pages":"581-582"},"PeriodicalIF":0.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144555042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Identification of Food-derived Bioactive Components with Physiological Effects].","authors":"Jun Inoue","doi":"10.1248/yakushi.24-00173-2","DOIUrl":"https://doi.org/10.1248/yakushi.24-00173-2","url":null,"abstract":"<p><p>Food-derived components with physiological effects have been attracting attention in recent years, and studies have comprehensively analyzed these components. In this study, we sought to identify food components with functional properties for the prevention and improvement of metabolic syndrome. We performed a luciferase reporter assay using fatty acid synthase (FAS) and low-density lipoprotein receptor (LDL) receptor gene promoters. Naturally occurring isothiocyanate sulforaphane impaired FAS promoter activity and reduced sterol regulatory element-binding protein (SREBP) target gene expression in human hepatoma Huh-7 cells. Sulforaphane reduced SREBP proteins by promoting the degradation of the SREBP precursor. Furthermore, we screened LDL receptor promoter effectors and observed that extract from sweet cherry peduncles induces LDL receptor gene promoter activity. Several analytical and chemical methods revealed that chrysin 7O-β-D-glucopyranoside in cherry peduncle extract stimulated LDL receptor gene promoter activity. Thus, this comprehensive search for components that alter the expression of genes associated with lipid metabolism led to the discovery of new functions of food components.</p>","PeriodicalId":23810,"journal":{"name":"Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan","volume":"145 1","pages":"23-28"},"PeriodicalIF":0.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[The Potential Analysis of Flavoring Agents as Novel Functional Foods].","authors":"Takuya Yamashita, Kazuya Nagano","doi":"10.1248/yakushi.24-00173-1","DOIUrl":"https://doi.org/10.1248/yakushi.24-00173-1","url":null,"abstract":"<p><p>Functional foods have attracted increasing attention. To prevent diseases using functional foods, various unhealthy conditions must be addressed, such as blood lipids, blood sugar, and blood pressure. However, there are insufficient functional ingredients available to address these unhealthy conditions. For example, five main ingredients (such as γ-aminobutyric acid) currently predominate in foods with functional claims, and account for approximately 38.2% of the total registered products in Japan. These data suggest that some functional and safe ingredients are widely used. From this perspective, enhancing the lineup of functional ingredients is necessary to address unhealthy conditions and develop various functional foods in the future. Flavoring agents are attractive ingredients. However, studies on flavoring agents have focused only on psychological functions, such as relaxation. In this study, we discuss the potential use of flavoring agents as functional ingredients.</p>","PeriodicalId":23810,"journal":{"name":"Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan","volume":"145 1","pages":"17-21"},"PeriodicalIF":0.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Disease Research and Drug Development Pioneered by Female Researchers with a Focus on the Liver].","authors":"Yukiko Ueyama-Toba, Kahori Shimizu","doi":"10.1248/yakushi.24-00177-F","DOIUrl":"https://doi.org/10.1248/yakushi.24-00177-F","url":null,"abstract":"","PeriodicalId":23810,"journal":{"name":"Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan","volume":"145 3","pages":"169-170"},"PeriodicalIF":0.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143537885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Current Situation and Challenges of Regulation and Analytical Methods for Residual Pesticides, Veterinary Drugs and Mycotoxins in Foods].","authors":"Takaaki Taguchi, Tomoaki Tsutsumi","doi":"10.1248/yakushi.24-00164-F","DOIUrl":"https://doi.org/10.1248/yakushi.24-00164-F","url":null,"abstract":"","PeriodicalId":23810,"journal":{"name":"Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan","volume":"145 2","pages":"93-94"},"PeriodicalIF":0.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143081152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Usefulness of SPLINE-Deconvolution Method to Analyze Absorption Kinetics of Fentanyl Released from Systemically Acting Fentanyl Patch].","authors":"Noriko Hirota, Hiroki Hirayama","doi":"10.1248/yakushi.24-00193","DOIUrl":"https://doi.org/10.1248/yakushi.24-00193","url":null,"abstract":"<p><p>Durotep<sup>®</sup>MT Patch (DMTP) (Janssen Pharmaceutical K.K., Tokyo) is a systemically acting narcotic patch containing fentanyl. It is applied transdermally and removed 72 h after applying. The range of effective serum fentanyl concentrations is very narrow (0.3-3 ng/mL). Therefore, analysis of the absorption kinetics (ABK) is especially important. We studied ABK for fentanyl from DMTP 16.8 mg. There are 5 analytical methods to obtain ABK: The estimated mean absorbed rate at steady state (EMARSS) obtained using the residual method (standard value), absolute bioavailability method, Wagner-Nelson method, 3-compartment model Loo-Riegelman method (3LR), and SPLINE-Deconvolution method (SDecon), yielding results of 0.104, 0.119, 0.114, 0.109, and 0.103 mg/h respectively. EMARSS for 3LR and SDecon were nearly equal to the standard value. The absorbed rate for fentanyl with elapsed time by SDecon indicated an amplitude of 3 times with about a 20 h period at 10.7-72 h and the increase in the absorption rate began before the increase in the serum concentration when DMTP was applied transdermally. This phenomenon indicates that the mean absorption rate was constant; thus, an absorption steady state was reached. The actual mean absorption rate during this period was 0.0924 mg/h (range: 0.0594-0.131). The cumulative absorption ratio increased gradually with only a small amplitude, and bioavailability was 44.2%. From our results, SPLINE-Deconvolution is the most suitable method to assess fentanyl absorption kinetics of DMTP.</p>","PeriodicalId":23810,"journal":{"name":"Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan","volume":"145 5","pages":"461-468"},"PeriodicalIF":0.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144029810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Elucidating the Mechanisms of Lipid Accumulation in the Liver and Evaluating Potential Drug Targets].","authors":"Takayuki Koga","doi":"10.1248/yakushi.24-00206","DOIUrl":"10.1248/yakushi.24-00206","url":null,"abstract":"<p><p>Fatty liver is defined as a condition in which fat accumulates excessively in the liver. It is characterized by either more than 30% of hepatocytes being fatty or over 5% of the total liver weight attributable to fat. The mechanisms behind hepatic fat accumulation are not fully understood, and no curative treatments have been established; thus, most treatments are symptomatic. Recent studies have focused on the mechanisms involving peroxisome proliferator-activated receptors (PPARs) α and γ, which are central to most research in lipid metabolism and inflammation. However, the development of drugs targeting PPARβ/δ, another isoform, has not progressed as much as for other PPARs. PPARβ/δ is known to play a critical role in maintaining homeostasis in lipid and glucose metabolism, differentiation, and inflammation, similar to other PPAR isoforms, making it a promising target for drug discovery. This review summarizes the potential of PPARβ/δ as a therapeutic target for fatty liver treatment, suggesting that it could be a valuable drug target given its roles in fundamental regulatory mechanisms.</p>","PeriodicalId":23810,"journal":{"name":"Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan","volume":"145 4","pages":"265-271"},"PeriodicalIF":0.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143773274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Application of Human Liver Organoids for Pharmaceutical Research].","authors":"Yukiko Ueyama-Toba, Yanran Tong, Hiroyuki Mizuguchi","doi":"10.1248/yakushi.24-00177-4","DOIUrl":"10.1248/yakushi.24-00177-4","url":null,"abstract":"<p><p>Human liver organoids are expected to be a hepatocyte source for preclinical in vitro studies of drug metabolism and disposition. Although these organoids show long-term proliferation, their hepatic functions remain low. Therefore, it is necessary to enhance the hepatic functions of primary human hepatocyte (PHH)-derived organoids. Here, we propose a novel method for two dimensional (2D)-cultured hepatic differentiation from PHH-derived organoids. PHH-derived organoids were established from cryopreserved PHHs. When cultured under a 2D condition, the single cells from PHH-derived organoids were seeded on collagen type I-coated plates. Then, optimal conditions for hepatic differentiation were screened using several compounds, cytokines and growth factors. Based on the results of the screening, we determined the 2D-cultured hepatic differentiation method from PHH-derived organoids. Hepatic gene expressions in PHH-derived organoids-derived hepatocytes (Org-HEPs) were greatly increased, compared to those in PHH-derived organoids. An RNA-seq analysis showed that gene expressions related to pharmacokinetics were upregulated in Org-HEPs compared to PHH-derived organoids. The metabolic activities of CYP1A2, CYP2C8, CYP2E1 and CYP3A4 were at levels comparable to those in PHHs. We also treated Org-HEPs and PHHs with hepatotoxic drugs, such as acetaminophen, troglitazone, amiodarone and clozapine. The cell viability of Org-HEPs was almost the same as that of PHHs. These results suggested that PHH-derived organoids could be differentiated into highly functional hepatocytes in 2D culture, and Org-HEPs could be used for hepatotoxicity tests. Thus, Org-HEPs will be useful for pharmaceutical research.</p>","PeriodicalId":23810,"journal":{"name":"Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan","volume":"145 3","pages":"189-194"},"PeriodicalIF":0.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143537828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}