1
|
Yamamoto K, Sato Y, Hagihara K, Kirikihira K, Jotaki A, Michihara A, Miyake Y. Effects of Rikkunshi-To, a Japanese kampo medicine, on donepezil-induced gastrointestinal side effects in mice. J Pharmacol Sci 2022; 150:123-133. [PMID: 36055750 DOI: 10.1016/j.jphs.2022.08.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 05/13/2022] [Accepted: 08/02/2022] [Indexed: 11/29/2022] Open
Abstract
Donepezil, an acetylcholinesterase inhibitor, is associated with gastrointestinal symptoms, such as nausea, vomiting, and anorexia, which may affect adherence to continuous therapy. Since Rikkunshi-To, a Japanese herbal medicine, activates the ghrelin signaling pathway and promotes gastrointestinal function, it is administered to prevent gastrointestinal symptoms. We herein investigated whether donepezil-induced gastrointestinal side effects in mice are ameliorated by Rikkunshi-To and if its therapeutic efficacy is mediated by ghrelin. Since pica behavior, the ingestion of kaolin, correlates with nausea and vomiting in humans, donepezil was intraperitoneally administered with or without Rikkunshi-To daily to mice, and food and kaolin intakes were monitored. The effects of donepezil on intestinal motility and a ghrelin receptor antagonist on donepezil-induced pica behavior, anorexia, and changes in intestinal motility were examined in mice treated with Rikkunshi-To. Pica behavior and anorexia were significantly induced by donepezil and significantly inhibited by Rikkunshi-To. Intestinal motility was significantly suppressed by donepezil and promoted by Rikkunshi-To. Furthermore, the therapeutic effects of Rikkunshi-To were antagonized by the ghrelin receptor antagonist. The present results support the therapeutic efficacy of Rikkunshi-To against donepezil-induced gastrointestinal side effects.
Collapse
Affiliation(s)
- Kouichi Yamamoto
- Department of Medical Science and Technology, Division of Health Sciences, Graduate School of Medicine, Osaka University, 1-7 Yamadaoka, Suita, Osaka 565-0871, Japan.
| | - Yuhki Sato
- Department of Clinical Evaluation of Drug Efficacy, Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, 1 Sanzo, Gakuen-cho, Fukuyama-shi, Hiroshima 729-0292, Japan
| | - Keisuke Hagihara
- Department of Advanced Hybrid Medicine, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kyosuke Kirikihira
- Department of Medical Science and Technology, Division of Health Sciences, Graduate School of Medicine, Osaka University, 1-7 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Akito Jotaki
- Department of Medical Science and Technology, Division of Health Sciences, Graduate School of Medicine, Osaka University, 1-7 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Ayana Michihara
- Department of Clinical Evaluation of Drug Efficacy, Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, 1 Sanzo, Gakuen-cho, Fukuyama-shi, Hiroshima 729-0292, Japan
| | - Yumi Miyake
- Department of Clinical Evaluation of Drug Efficacy, Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, 1 Sanzo, Gakuen-cho, Fukuyama-shi, Hiroshima 729-0292, Japan
| |
Collapse
|
2
|
Erriu M, Pili FMG, Cadoni S, Garau V. Diagnosis of Lingual Atrophic Conditions: Associations with Local and Systemic Factors. A Descriptive Review. Open Dent J 2016; 10:619-635. [PMID: 27990187 PMCID: PMC5123136 DOI: 10.2174/1874210601610010619] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Revised: 10/09/2016] [Accepted: 10/15/2016] [Indexed: 12/16/2022] Open
Abstract
Atrophic glossitis is a condition characterised by absence of filiform or fungiform papillae on the dorsal surface of the tongue. Consequently, the ordinary texture and appearance of the dorsal tongue, determined by papillary protrusion, turns into a soft and smooth aspect. Throughout the years, many factors, both local and systemic, have been associated with atrophic glossitis as the tongue is currently considered to be a mirror of general health. Moreover, various tongue conditions were wrongly diagnosed as atrophic glossitis. Oral involvement can conceal underlying systemic conditions and, in this perspective, the role of clinicians is fundamental. Early recognition of oral signs and symptoms, through a careful examination of oral anatomical structures, plays a crucial role in providing patients with a better prognosis.
Collapse
Affiliation(s)
- M Erriu
- Department of Surgical Sciences, Cagliari University, Cagliari, Italy
| | - F M G Pili
- Department of Surgical Sciences, Cagliari University, Cagliari, Italy
| | - S Cadoni
- Digestive Endoscopy Unit, S. Barbara Hospital, Iglesias (CA), Italy
| | - V Garau
- Department of Surgical Sciences, Cagliari University, Cagliari, Italy
| |
Collapse
|