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Citrus junos Tanaka Peel Extract Ameliorates HDM-Induced Lung Inflammation and Immune Responses In Vivo. Nutrients 2022; 14:nu14235024. [PMID: 36501052 PMCID: PMC9740624 DOI: 10.3390/nu14235024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022] Open
Abstract
In the wake of the COVID-19 pandemic, lung disorders have become a major health concern for humans. Allergic asthma is the most prevalent form of asthma, and its treatments target the inflammation process. Despite significant developments in the diagnosis and management of allergic asthma, side effects are a major concern. Additionally, its extreme heterogeneity impedes the efficacy of the majority of treatments. Thus, newer, safer therapeutic substances, such as natural products, are desired. Citrus junos Tanaka has traditionally been utilized as an anti-inflammatory, sedative, antipyretic, and antitoxic substance. In this study, the protective effects of Citrus junos Tanaka peel extract (B215) against lung inflammation were examined, and efforts were made to understand the underlying protective mechanism using an HDM-induced lung inflammation murine model. The administration of B215 reduced immune cell infiltration in the lungs, plasma IgE levels, airway resistance, mucus hypersecretions, and cytokine production. These favorable effects alleviated HDM-induced lung inflammation by modulating the NF-κB signaling pathway. Hence, B215 might be a promising functional food to treat lung inflammation without adverse effects.
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Huang WY, Lee SH, Oh SJ, Yoon H, Pan JH, Jeong I, Kim MJ, Han BK, Kim JK, Shin EC, Kim YJ. Canavalia gladiata Pod Extract Mitigates Ovalbumin-Induced Asthma Onset in Male BALB/c Mice via Suppression of MAPK. Molecules 2022; 27:molecules27196317. [PMID: 36234854 PMCID: PMC9573573 DOI: 10.3390/molecules27196317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/18/2022] [Accepted: 09/22/2022] [Indexed: 11/26/2022] Open
Abstract
Asthma is one of the most common inflammatory diseases of the lung worldwide. There has been considerable progress in recent studies to treat and prevent allergic asthma, however, various side effects are still observed in clinical practice. Six-week-old male BALB/c mice were orally administered with either sword bean pod extracts (SBP; 100 or 300 mg/kg) or dexamethasone (DEX; 5 mg/kg) once daily over 3 weeks, followed by ovalbumin sensitization (OVA/Alum.; intraperitoneal administration, 50 μg/2 mg/per mouse). Scoring of lung inflammation was performed to observe pathological changes in response to SBP treatment compared to OVA/Alum.-induced lung injury. Additionally, inflammatory cytokines were quantified in serum, bronchoalveolar lavage fluid (BALF), and lung tissue using ELISA and Western blot analyses. SBP treatment significantly reduced the infiltration of inflammatory cells, and release of histamine, immunoglobulin E, and leukotriene in serum and BALF. Moreover, the therapeutic effect of SBP was also assessed to analyze the inflammatory changes in the lung tissues. SBP markedly suppressed the activation of the MAPK signaling pathway and the expression of key inflammatory proteins (e.g., TNF-α) and Th2 type cytokines (IL-5 and IL-13). SBP was effective in ameliorating the allergic inflammation against OVA/Alum.-induced asthma by suppressing pulmonary inflammation.
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Affiliation(s)
- Wen Yan Huang
- Department of Food and Biotechnology, Korea University, Sejong 30019, Korea
- BK21 FOUR Research Education Team for Omics-Based Bio-Health in Food Industry, Korea University, Sejong 30019, Korea
| | - Sang Hoon Lee
- Department of Food and Biotechnology, Korea University, Sejong 30019, Korea
- BK21 FOUR Research Education Team for Omics-Based Bio-Health in Food Industry, Korea University, Sejong 30019, Korea
| | - Seong Ju Oh
- Department of Food and Regulatory Science, Korea University, Sejong 30019, Korea
| | - Hyeock Yoon
- Department of Food and Regulatory Science, Korea University, Sejong 30019, Korea
| | - Jeong Hoon Pan
- Department of Food and Nutrition, Chosun University, Gwangju 61452, Korea
| | - Inhye Jeong
- RWJMS Institute for Neurological Therapeutics, Rutgers-Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA
| | - Mi Jeong Kim
- Department of Food and Biotechnology, Korea University, Sejong 30019, Korea
| | - Bok Kyung Han
- Department of Food and Biotechnology, Korea University, Sejong 30019, Korea
- Department of Food and Regulatory Science, Korea University, Sejong 30019, Korea
| | - Jae Kyeom Kim
- Department of Behavioral Health and Nutrition, College of Health Sciences, University of Delaware, Newark, DE 19716, USA
| | - Eui-Cheol Shin
- Department of Food Science, Gyeongsang National University, Jinju 52828, Korea
| | - Young Jun Kim
- Department of Food and Biotechnology, Korea University, Sejong 30019, Korea
- BK21 FOUR Research Education Team for Omics-Based Bio-Health in Food Industry, Korea University, Sejong 30019, Korea
- Department of Food and Regulatory Science, Korea University, Sejong 30019, Korea
- Correspondence: ; Tel.: +82-44-860-1040; Fax: +82-44-860-1780
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