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Liang N, Kim BJ, Dallas DC. Bioavailability of Peptides Derived from the In Vitro Digestion of Human Milk Assessed by Caco-2 Cell Monolayers. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:7077-7084. [PMID: 35608530 DOI: 10.1021/acs.jafc.2c01246] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Human milk-protein-derived peptides exhibit an array of bioactivities. Certain bioactivities cannot be exerted unless the peptides are absorbed across the gastrointestinal lumen into the bloodstream. The purpose of study was to determine which peptides derived from in vitro digestion of human milk could cross human intestinal Caco-2 cell monolayers. Our results showed that the numbers of peptides absorbed by the Caco-2 cell monolayer were different at different concentrations (44 peptides out of 169 peptides detected at 10 μg/mL, 124 peptides out of 204 peptides detected at 100 μg/mL, and 175 peptides out of 236 peptides detected at 1000 μg/mL). Four peptides (NLHLPLP (β-casein [138-144]), PLAPVHNPI (β-casein [216-224]), PLMQQVPQPIPQ (β-casein [148-159]), and FDPQIPK (β-casein [126-132])) crossed to the basolateral chamber of the Caco-2 monolayer incubated with peptides at all three concentrations. Among the peptides identified in the basolateral chambers, three peptides (NLHLPLP (β-casein [138-144]), LENLHLPLP (β-casein [136-144]), and QVVPYPQ (β-casein [182-188])) are known ACE-inhibitors; one peptide (LLNQELLLNPTHQIYPV (β-casein [197-213])) is antimicrobial, and another peptide (QVVPYPQ (β-casein [182-188])) has antioxidant activity. These findings indicate that specific milk peptides may be able to reach the bloodstream and exert bioactivity.
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Affiliation(s)
- Ningjian Liang
- Nutrition Program, School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, Oregon 97331, United States
| | - Bum Jin Kim
- Nutrition Program, School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, Oregon 97331, United States
| | - David C Dallas
- Nutrition Program, School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, Oregon 97331, United States
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Guha S, Alvarez S, Majumder K. Transport of Dietary Anti-Inflammatory Peptide, γ-Glutamyl Valine (γ-EV), across the Intestinal Caco-2 Monolayer. Nutrients 2021; 13:nu13051448. [PMID: 33923345 PMCID: PMC8145144 DOI: 10.3390/nu13051448] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 04/20/2021] [Accepted: 04/20/2021] [Indexed: 01/04/2023] Open
Abstract
The present study analyzed the transepithelial transport of the dietary anti-inflammatory peptide, γ-glutamyl valine (γ-EV). γ-EV is naturally found in dry edible beans. Our previous study demonstrated the anti-inflammatory potency of γ-EV against vascular inflammation at a concentration of 1mM, and that it can transport with the apparent permeability coefficient (Papp) of 1.56 × 10-6 ± 0.7 × 10-6 cm/s across the intestinal Caco-2 cells. The purpose of the current study was to explore whether the permeability of the peptide could be enhanced and to elucidate the mechanism of transport of γ-EV across Caco-2 cells. The initial results indicated that γ-EV was nontoxic to the Caco-2 cells up to 5 mM concentration and could be transported across the intestinal cells intact. During apical-to-basolateral transport, a higher peptide dose (5 mM) significantly (p < 0.01) enhanced the transport rate to 2.5 × 10-6 ± 0.6 × 10-6 cm/s. Cytochalasin-D disintegrated the tight-junction proteins of the Caco-2 monolayer and increased the Papp of γ-EV to 4.36 × 10-6 ± 0.16 × 10-6 cm/s (p < 0.001), while theaflavin 3'-gallate and Gly-Sar significantly decreased the Papp (p < 0.05), with wortmannin having no effects on the peptide transport, indicating that the transport route of γ-EV could be via both PepT1-mediated and paracellular.
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Affiliation(s)
- Snigdha Guha
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE 68588-6205, USA;
| | - Sophie Alvarez
- Proteomics and Metabolomics Facility, Nebraska Center for Biotechnology, University of Nebraska-Lincoln, Lincoln, NE 68588-0665, USA;
| | - Kaustav Majumder
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE 68588-6205, USA;
- Correspondence: ; Tel.: +1-(402)-472-3510; Fax: +1-(402)-472-4474
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Xu Q, Hong H, Wu J, Yan X. Bioavailability of bioactive peptides derived from food proteins across the intestinal epithelial membrane: A review. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.02.050] [Citation(s) in RCA: 122] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Lin Q, Xu Q, Bai J, Wu W, Hong H, Wu J. Transport of soybean protein-derived antihypertensive peptide LSW across Caco-2 monolayers. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.10.011] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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Xu Q, Fan H, Yu W, Hong H, Wu J. Transport Study of Egg-Derived Antihypertensive Peptides (LKP and IQW) Using Caco-2 and HT29 Coculture Monolayers. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:7406-7414. [PMID: 28782363 DOI: 10.1021/acs.jafc.7b02176] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The objective of this study was to investigate the mechanisms of the transport of antihypertensive tripeptides LKP (Leu-Lys-Pro) and IQW (Ile-Gln-Trp) derived from egg white using a coculture system of Caco-2 and HT29 cell monolayers. The results revealed that LKP and IQW have no cytotoxicity to the cell viability after 2 h incubation, could be transported intact across coculture monolayers (apparent permeability coefficient: (18.11 ± 1.57) × 10-8 and (13.21 ± 1.12) × 10-8 cm/s, respectively), and were resistant to peptidase secreted by enterocytes. In addition, the transports were significantly inhibited by dipeptide Gly-Pro (P < 0.05), a competitive substance of peptide transporter 1 (PepT1). The transports from apical to basolateral side were significantly higher than that of the reverse direction (P < 0.05). These results suggest that PepT1 is involved in LKP and IQW transports. The transports were also significantly decreased by theaflavin-3'-O-gallate (P < 0.05), an enhancer of tight junction (TJ) and increased by cytochalasin D (P < 0.05), a disruptor of TJ but not influenced by wortamanin, a transcytosis inhibitor, suggesting that passive paracellular route via TJs is also involved in LKP and IQW transports but not transcytosis. In addition, siRNA was also used to knockdown the expression of PepT1 and significantly inhibited the transport (P < 0.05), confirming that PepT1 is involved in transport process. Therefore, both passive paracellular route via TJ and active route via PepT1 coexist in the transport of antihypertensive LKP and IQW across Caco-2/HT29 coculture monolayers.
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Affiliation(s)
- Qingbiao Xu
- College of Animal Sciences and Technology, Huazhong Agricultural University , Wuhan 430070, China
- Department of Agricultural, Food and Nutritional Science, University of Alberta , Edmonton, Alberta T6G 2P5, Canada
| | - Hongbing Fan
- Department of Agricultural, Food and Nutritional Science, University of Alberta , Edmonton, Alberta T6G 2P5, Canada
| | - Wenlin Yu
- Department of Agricultural, Food and Nutritional Science, University of Alberta , Edmonton, Alberta T6G 2P5, Canada
| | - Hui Hong
- Department of Agricultural, Food and Nutritional Science, University of Alberta , Edmonton, Alberta T6G 2P5, Canada
| | - Jianping Wu
- Department of Agricultural, Food and Nutritional Science, University of Alberta , Edmonton, Alberta T6G 2P5, Canada
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Vij R, Reddi S, Kapila S, Kapila R. Transepithelial transport of milk derived bioactive peptide VLPVPQK. Food Chem 2016. [DOI: 10.1016/j.foodchem.2015.05.121] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Dombu CY, Kroubi M, Zibouche R, Matran R, Betbeder D. Characterization of endocytosis and exocytosis of cationic nanoparticles in airway epithelium cells. NANOTECHNOLOGY 2010; 21:355102. [PMID: 20689164 DOI: 10.1088/0957-4484/21/35/355102] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A major challenge of drug delivery using colloids via the airway is to understand the mechanism implied in their interactions with epithelial cells. The purpose of this work was to characterize the process of endocytosis and exocytosis of cationic nanoparticles (NPs) made of maltodextrin which were developed as a delivery system for antigens in vaccine applications. Confocal microscopy demonstrated that these NP are rapidly endocytosed after as little as 3 min incubation, and that the endocytosis was also faster than NP binding since most of the NPs were found in the middle of the cells around the nuclei. A saturation limit was observed after a 40 min incubation, probably due to an equilibrium becoming established between endocytosis and exocytosis. Endocytosis was dramatically reduced at 4 degrees C compared with 37 degrees C, or by NaN(3) treatment, both results suggesting an energy dependent process. Protamine pretreatment of the cells inhibited NPs uptake and we found that clathrin pathway is implied in their endocytosis. Cholesterol depletion increased NP uptake by 300% and this phenomenon was explained by the fact that cholesterol depletion totally blocked NP exocytosis. These results suggest that these cationic NPs interact with anionic sites, are quickly endocytosed via the clathrin pathway and that their exocytosis is cholesterol dependent, and are similar to those obtained in other studies with viruses such as influenza.
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Affiliation(s)
- Christophe Youta Dombu
- EA 4483, IFR 114, Laboratoire de Physiologie, Faculté de Médecine Pôle Recherche, Université de Lille 2, Lille, France
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Regazzo D, Mollé D, Gabai G, Tomé D, Dupont D, Leonil J, Boutrou R. The (193-209) 17-residues peptide of bovine β-casein is transported through Caco-2 monolayer. Mol Nutr Food Res 2010; 54:1428-35. [DOI: 10.1002/mnfr.200900443] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Gilbert ER, Wong EA, Webb KE. Board-invited review: Peptide absorption and utilization: Implications for animal nutrition and health. J Anim Sci 2008; 86:2135-55. [PMID: 18441086 DOI: 10.2527/jas.2007-0826] [Citation(s) in RCA: 210] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Over the last 50 yr, the study of intestinal peptide transport has rapidly evolved into a field with exciting nutritional and biomedical applications. In this review, we describe from a historical and current perspective intestinal peptide transport, the importance of peptides to whole-body nutrition, and the cloning and characterization of the intestinal peptide transporter, PepT1. We focus on the nutritional significance of peptide transport and relate these findings to livestock and poultry. Amino acids are transported into the enterocyte as free AA by a variety of AA transporters that vary in substrate specificity or as di- and tripeptides by the peptide transporter, PepT1. Expression of PepT1 is largely restricted to the small intestine in most species; however, in ruminants, peptide transport and activity is observed in the rumen and omasum. The extent to which peptides are absorbed and utilized is still unclear. In ruminants, peptides make a contribution to the portal-drained visceral flux of total AA and are detected in circulating plasma. Peptides can be utilized by the mammary gland for milk protein synthesis and by a variety of other tissues. We discuss the factors known to regulate expression of PepT1 including development, diet, hormones, diurnal rhythm, and disease. Expression of PepT1 is detected during embryological stages in both birds and mammals and increases with age, a strategic event that allows for the immediate uptake of nutrients after hatch or birth. Both increasing levels of protein in the diet and dietary protein deficiencies are found to upregulate the peptide transporter. We also include in this review a discussion of the use of dietary peptides and potential alternate routes of nutrient delivery to the cell. Our goal is to impart to the reader the nutritional implications of peptide transport and dietary peptides and share discoveries that shed light on various biological processes, including rapid establishment of intestinal function in early neonates and maintenance of intestinal function during fasting, starvation, and disease states.
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Affiliation(s)
- E R Gilbert
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg 24061-0306, USA
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Quirós A, Dávalos A, Lasunción MA, Ramos M, Recio I. Bioavailability of the antihypertensive peptide LHLPLP: Transepithelial flux of HLPLP. Int Dairy J 2008. [DOI: 10.1016/j.idairyj.2007.09.006] [Citation(s) in RCA: 107] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kodera T, Hara H, Nishimori Y, Nio N. Amino Acid Absorption in Portal Blood After Duodenal Infusions of a Soy Protein Hydrolysate Prepared by a Novel Soybean Protease D3. J Food Sci 2006. [DOI: 10.1111/j.1750-3841.2006.00118.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Kodera T, Nio N. Identification of an Angiotensin I-converting Enzyme Inhibitory Peptides from Protein Hydrolysates by a Soybean Protease and the Antihypertensive Effects of Hydrolysates in 4 Spontaneously Hypertensive Model Rats. J Food Sci 2006. [DOI: 10.1111/j.1365-2621.2006.tb15612.x] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Casartelli M, Corti P, Giovanna Leonardi M, Fiandra L, Burlini N, Pennacchio F, Giordana B. Absorption of albumin by the midgut of a lepidopteran larva. JOURNAL OF INSECT PHYSIOLOGY 2005; 51:933-40. [PMID: 15935372 DOI: 10.1016/j.jinsphys.2005.04.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2004] [Revised: 04/18/2005] [Accepted: 04/18/2005] [Indexed: 05/02/2023]
Abstract
In the last decade, the study of peptide and protein absorption by the insect gut has received increasing attention because of the considerable impact this information may have on the development of new delivery strategies for insecticide macromolecules targeting haemocoelic receptors. Available experimental evidence in vivo suggests that, in insects, peptides and proteins can cross the intestinal barrier reaching the haemocoel, but the functional bases of this absorption pathway have not yet been thoroughly investigated. The current knowledge of the mechanisms involved in protein and polypeptide absorption in animals derives from the extensive studies performed in mammalian polarised epithelial cells, where the transcellular transport of proteins by transcytosis has been demonstrated. In this process, proteins are internalised at one pole of the cell and transported by cytoplasmic vesicular traffic to the opposite plasma membrane domain, where they are released with unchanged biological activity. Here we report data on albumin translocation across the isolated midgut of Bombyx mori caterpillars perfused in vitro. The functional properties of the transepithelial transport of this protein are described and, since absorption prevails over secretion, its lumen-to-haemolymph flux is characterised. Low-temperature incubations nearly abolish the transepithelial transport, while the peculiar physiological features of the larval midgut, i.e. the high lumen positive transepithelial voltage and the luminal alkaline pH, do not affect the flux. The obtained results indicate that albumin crosses B. mori larval midgut by transcytosis.
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Affiliation(s)
- Morena Casartelli
- Dipartimento di Biologia, Università degli Studi di Milano, via Celoria 26, 20133 Milano, Italy
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4-(3-Aminopropylene)-7-nitrobenzofurazan: a new polymerisable monomer for use in homogeneous molecularly imprinted sorbent fluoroassays. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.03.053] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Abstract
By incorporating the transporter-mediated or receptor-mediated transport process in physiologically based pharmacokinetic models, we succeeded in the quantitative prediction of plasma and tissue concentrations of beta-lactam antibiotics, insulin, pentazocine, quinolone antibacterial agents, and inaperizone and digoxin. The author's research on transporter-mediated pharmacokinetics focuses on the molecular and functional characteristics of drug transporters such as oligopeptide transporter, monocarboxylic acid transporter, anion antiporter, organic anion transporters, organic cation/carnitine transporters (OCTNs), and the ATP-binding cassette transporters P-glycoprotein and MRP2. We have successfully demonstrated that these transporters play important roles in the influxes and/or effluxes of drugs in intestinal and renal epithelial cells, hepatocytes, and brain capillary endothelial cells that form the blood-brain barrier. In the systemic carnitine deficiency (SCD) phenotype mouse model, juvenile visceral steatosis (jvs) mouse, a mutation in the OCTN2 gene was found. Furthermore, several types of mutation in human SCD patients were found, demonstrating that OCTN2 is a physiologically important carnitine transporter. Interestingly, OCTNs transport carnitine in a sodium-dependent manner and various cationic drugs transport it in a sodium-independent manner. OCTNs are thought to be multifunctional transporters for the uptake of carnitine into tissue cells and for the elimination of intracellular organic cationic drugs.
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Affiliation(s)
- Akira Tsuji
- Faculty of Pharmaceutical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa 920-0934, Japan.
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Sai Y, Kajita M, Tamai I, Wakama J, Wakamiya T, Tsuji A. Adsorptive-mediated endocytosis of a basic peptide in enterocyte-like Caco-2 cells. THE AMERICAN JOURNAL OF PHYSIOLOGY 1998; 275:G514-20. [PMID: 9724263 DOI: 10.1152/ajpgi.1998.275.3.g514] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The internalization of a basic peptide, 001-C8 [H-MeTyr-Arg-MeArg-D-Leu-NH(CH2)8NH2], into enterocyte-like Caco-2 cells was evaluated. Internalization of 125I-labeled 001-C8 (125I-001-C8) increased time dependently and reached steady state at 60 min. The steady-state internalization of 125I-001-C8 (7.24 +/- 0. 41 microl/mg protein) was temperature and concentration dependent and was significantly decreased by dansylcadaverine (500 microM), protamine (1 mM), poly-L-lysine (1 mM), E-2078 (1 mM), and ebiratide (1 mM), whereas poly-L-glutamic acid (1 mM), tyrosine (1 mM), and glycylglycine (25 mM) were not inhibitory. Predigestion of acid mucopolysaccharides by heparinase I, heparitinase, and chondroitinase ABC also decreased the internalization. The maximal internalization, the half-saturation constant, and the nonsaturable internalization of 125I-001-C8 were 1.13 +/- 0.23 pmol/mg protein, 0. 47 +/- 0.43 microM, and 3.13 +/- 0.19 microl/mg protein, respectively. Confocal microscopy also indicated the internalization of fluorescence-derived 001-C8 [001-C8-4-nitrobenz-2-oxa-1,3-diazole (001-C8-NBD)]. Granular staining seen within the cell, excluding nuclei, indicated the sequestration of 001-C8-NBD within endocytotic vesicles. Dansylcadaverine and protamine strongly decreased the granular distribution of 001-C8-NBD within the cell. These results demonstrate that 001-C8 is taken up by Caco-2 cells via adsorptive-mediated endocytosis.
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Affiliation(s)
- Y Sai
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Kanazawa University, Kanazawa 920-0934, Japan
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Sai Y, Kajita M, Tamai I, Wakama J, Wakamiya T, Tsuji A. Adsorptive-mediated transcytosis of a synthetic basic peptide, 001-C8 in Caco-2 cells. Pharm Res 1998; 15:1305-9. [PMID: 9706066 DOI: 10.1023/a:1011916613875] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Y Sai
- Department of Pharmacobiodynamics, Faculty of Pharmaceutical Sciences, Kanazawa University, Japan
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