1
|
Peng X, Yang Y, Zhong R, Yang Y, Yan F, Liang N, Yuan S. Zinc and Inflammatory Bowel Disease: From Clinical Study to Animal Experiment. Biol Trace Elem Res 2024:10.1007/s12011-024-04193-6. [PMID: 38805169 DOI: 10.1007/s12011-024-04193-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Accepted: 04/18/2024] [Indexed: 05/29/2024]
Abstract
Inflammatory bowel disease (IBD) is a chronic inflammatory disease of the gastrointestinal tract (GI) with a high incidence rate globally, and IBD patients are often accompanied by zinc deficiency. This review aims to summarize the potential therapeutic value of zinc supplementation in IBD clinical patients and animal models. Zinc supplementation can relieve the severity of IBD especially in patients with zinc deficiency. The clinical severity of IBD were mainly evaluated through some scoring methods involving clinical performance, endoscopic observation, blood biochemistry, and pathologic biopsy. Through conducting animal experiments, it has been found that zinc plays an important role in alleviating clinical symptoms and improving pathological lesions. In both clinical observation and animal experiment of IBD, the therapeutic mechanisms of zinc interventions have been found to be related to immunomodulation, intestinal epithelial repair, and gut microbiota's balance. Furthermore, the antioxidant activity of zinc was clarified in animal experiment. Appropriate zinc supplementation is beneficial for IBD therapy, and the present evidence highlights that alleviating zinc-deficient status can effectively improve the severity of clinical symptoms in IBD patients and animal models.
Collapse
Affiliation(s)
- Xi Peng
- School of Pharmacy, Sichuan Industrial Institute of Antibiotics, Chengdu University, No. 2025, Chengluo Avenue, Chengdu, 610106, Sichuan, China
| | - Yingxiang Yang
- School of Life Sciences, China West Normal University, Nanchong, 637001, Sichuan, China
| | - Rao Zhong
- School of Pharmacy, Sichuan Industrial Institute of Antibiotics, Chengdu University, No. 2025, Chengluo Avenue, Chengdu, 610106, Sichuan, China
| | - Yuexuan Yang
- School of Pharmacy, Sichuan Industrial Institute of Antibiotics, Chengdu University, No. 2025, Chengluo Avenue, Chengdu, 610106, Sichuan, China
| | - Fang Yan
- Geriatric Diseases Institute of Chengdu, Department of Geriatrics, Chengdu Fifth People's Hospital, Chengdu, China
| | - Na Liang
- Guangdong Key Laboratory of Nanomedicine, CAS Key Lab for Health Informatics, Shenzhen Engineering Laboratory of Nanomedicine and Nanoformulations, Shenzhen Institutes of Advanced Technology (SIAT), Chinese Academy of Sciences, Shenzhen, 518055, People's Republic of China
| | - Shibin Yuan
- School of Life Sciences, China West Normal University, Nanchong, 637001, Sichuan, China.
| |
Collapse
|
2
|
Wen C, Wang J, Sun Z, Zhong R, Li M, Shen X, Ye Q, Qin K, Peng X. Dietary Zinc Ameliorates TNBS-Induced Colitis in Mice Associated with Regulation of Th1/Th2/Th17 Balance and NF-κB/NLRP3 Signaling Pathway. Biol Trace Elem Res 2024; 202:659-670. [PMID: 37249802 DOI: 10.1007/s12011-023-03715-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 05/23/2023] [Indexed: 05/31/2023]
Abstract
Inflammatory bowel diseases (IBDs), including Crohn's disease and ulcerative colitis, are chronic relapsing inflammatory gastrointestinal tract diseases of uncertain origin, which are frequently associated with zinc deficiency. Animal models have a considerable value in elucidating the process of IBD. In this study, 50 male C57BL/6 J mice were randomly assigned to five groups: control group (Con), 2,4,6-trinitrobenzenesulfonic acid (TNBS) group, and three zinc supplementation groups, namely 160 ppm group, 400 ppm group, and 1000 ppm group. The results showed that supplementation of dietary zinc with zinc oxide could effectively relieve the severity of ulcerative colitis induced by TNBS in mice. We demonstrate that the protective mechanism involves the immunomodulation of dietary zinc by increasing CD3+, CD3+CD8+, and Th2 cells, suppressing Th1 and Th17 cells, and decreasing the production of serum IL-1β and IL-18. The dietary zinc oxide seems to be able to suppress the NF-κB/NLRP3 signaling pathway by downregulating the mRNA and protein expression of NIK, IKK, NF-κB, and NLRP3. The results suggest that dietary supplementation of zinc oxide may protect against colitis, and proper daily zinc supplementation may reduce the risk of IBD.
Collapse
Affiliation(s)
- Changlin Wen
- School of Pharmacy, Sichuan Industrial Institute of Antibiotics, Chengdu University, No. 2025, Chengluo Avenue, Chengdu, 610106, Sichuan, China
| | - Jiayu Wang
- School of Pharmacy, Sichuan Industrial Institute of Antibiotics, Chengdu University, No. 2025, Chengluo Avenue, Chengdu, 610106, Sichuan, China
| | - Zhenhua Sun
- Department of Technology, Sichuan Youngster Technology Co., Ltd., No. 733, Furong Avenue, Wenjiang District, Chengdu, 611130, Sichuan, China
| | - Rao Zhong
- School of Pharmacy, Sichuan Industrial Institute of Antibiotics, Chengdu University, No. 2025, Chengluo Avenue, Chengdu, 610106, Sichuan, China
| | - Mengjie Li
- Department of Technology, Sichuan Youngster Technology Co., Ltd., No. 733, Furong Avenue, Wenjiang District, Chengdu, 611130, Sichuan, China
| | - Xuemei Shen
- Department of Technology, Sichuan Youngster Technology Co., Ltd., No. 733, Furong Avenue, Wenjiang District, Chengdu, 611130, Sichuan, China
| | - Qiaobo Ye
- School of Basic Medicine Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, Sichuan, China
| | - Kaihua Qin
- School of Basic Medicine Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, Sichuan, China
| | - Xi Peng
- School of Pharmacy, Sichuan Industrial Institute of Antibiotics, Chengdu University, No. 2025, Chengluo Avenue, Chengdu, 610106, Sichuan, China.
| |
Collapse
|
3
|
Yu ZY, Xu YS, Tang M, Xin WF. The effect of olsalazine of chinese generic drugs on ulcerative colitis induced by dextran sulfate sodium salt in BALB/c mice. Acta Cir Bras 2023; 38:e382923. [PMID: 37610966 PMCID: PMC10443231 DOI: 10.1590/acb382923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 06/12/2023] [Indexed: 08/25/2023] Open
Abstract
PURPOSE To explore effect and mechanism of olsalazine of Chinese generic drugs on ulcerative colitis induced by dextran sulfate sodium salt (DSS) in BALB/c mice. METHODS The mouse model of ulcerative colitis was induced by free drinking of 3% (w/v) DSS aqueous solution for seven days. The mice were treated with olsalazine (0.6 g·kg-1) of Chinese generic drugs. The therapeutic effect of olsalazine on ulcerative colitis mice was evaluated by measuring disease activity index (DAI), colonic mucosal injury index (CMDI), histopathological score (HS), and detected the expression levels of interleukin (IL)-2, IL-10, tumor necrosis factor-α (TNF-α), interferon-γ (IFN-γ), IL-1β in serum and IL-7, IL-17, IL-22, epidermal growth factor (EGF), transforming growth factor β1 (TGF-β1) in colonic homogenate of mice. RESULTS Olsalazine significantly increased the contents of IL-2, IL-10, IL-22, TGF and EGF in ulcerative colitis rats, and significantly decreased the scores of DAI, CMDI, HS and the contents in IL-7, IL-17, TNF-α, IL-1β and IFN-γ when compared with the model group. It improved the degree of colonic lesion in ulcerative colitis mice. CONCLUSIONS It was suggested that olsalazine has a therapeutic effect on ulcerative colitis induced by DSS in mice, and the mechanism may be related to the increase of IL-2, IL-10, IL-22, TGF, and EGF and the decrease of the expression of IL-7, IL-17, TNF-α, IL-1β, and IFN-γ.
Collapse
Affiliation(s)
- Zheng-Yong Yu
- Wenshan University – College of Notoginseng Medicine and Pharmacy – Yunnan – China
| | - Yu-Sheng Xu
- Hunan Agricultural University – Agricultural School – Hunan – China
| | - Miao Tang
- Dali University – Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D – Yunnan – China
| | - Wen-Feng Xin
- Wenshan University – College of Notoginseng Medicine and Pharmacy – Yunnan – China
| |
Collapse
|
4
|
Zhang C, Hu Y, Yuan Y, Guo J, Li H, Li Q, Liu S. Liposome-embedded SOD attenuated DSS-induced ulcerative colitis in mice by ameliorating oxidative stress and intestinal barrier dysfunction. Food Funct 2023; 14:4392-4405. [PMID: 37092895 DOI: 10.1039/d2fo03312g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
Oxidative stress is generally considered inseparable from the development and exacerbation of ulcerative colitis (UC). Therefore, reducing oxidative stress has become a possible way to alleviate UC. In this study, the therapeutic effects of different doses of liposome-embedded superoxide dismutase (L-SOD) on mice with DSS-induced UC were systematically investigated. The results showed that L-SOD significantly attenuated the signs of colitis in mice, including colonic shortening, diarrhoea, bloody stools, and histopathological changes. L-SOD ameliorated DSS-induced oxidative damage, increased SOD, catalase (CAT), and glutathione (GSH) activities, and decreased malondialdehyde (MDA) levels. In addition, L-SOD ameliorated the inflammatory response by inhibiting the expression of myeloperoxidase (MPO) and pro-inflammatory cytokines and protected barrier function by promoting the expression of the tight junction proteins occludin and ZO-1 in the colon. Importantly, the results demonstrated a bell-shaped distribution of therapeutic effects relative to the administered dose, with an optimal dose of 150 000 U kg-1. These results indicate that L-SOD has great potential as an ingredient in functional foods for the prevention and mitigation of UC.
Collapse
Affiliation(s)
- Chi Zhang
- Institute of Biotechnology, Fuzhou University, Fuzhou 350108, China.
| | - Yujia Hu
- Institute of Biotechnology, Fuzhou University, Fuzhou 350108, China.
| | - Yi Yuan
- Institute of Biotechnology, Fuzhou University, Fuzhou 350108, China.
| | - Jingke Guo
- Institute of Biotechnology, Fuzhou University, Fuzhou 350108, China.
- Department of Food and Biological Engineering, Zhicheng College, Fuzhou University, Fuzhou 350002, China
| | - Henian Li
- Institute of Biotechnology, Fuzhou University, Fuzhou 350108, China.
| | - Qiaoling Li
- Institute of Biotechnology, Fuzhou University, Fuzhou 350108, China.
| | - Shutao Liu
- Institute of Biotechnology, Fuzhou University, Fuzhou 350108, China.
- Department of Food and Biological Engineering, Zhicheng College, Fuzhou University, Fuzhou 350002, China
| |
Collapse
|
5
|
Babu SSN, Singla S, Jena G. Role of Combination Treatment of Aspirin and Zinc in DMH-DSS-induced Colon Inflammation, Oxidative Stress and Tumour Progression in Male BALB/c Mice. Biol Trace Elem Res 2023; 201:1327-1343. [PMID: 35438409 DOI: 10.1007/s12011-022-03241-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 04/09/2022] [Indexed: 02/07/2023]
Abstract
Colitis-associated colorectal cancer serves as a prototype of inflammation-associated cancers which is linked with repeated cycles of inflammation and DNA repair deficits. Several preclinical and clinical data reported that aspirin has a chemo-preventive effect in colorectal cancer and is associated with dose-dependent side effects. Furthermore, it has been reported that zinc supplementation improves the quality of life in patients undergoing chemotherapy by alteration of colonic cancer cell gene expression. However, explication of the detailed molecular mechanisms involved in the combined administration of aspirin and zinc-mediated protection against colitis-associated colorectal cancer deserves further investigation. For the induction of colitis-associated colorectal cancer, male BALB/c mice were administered 1,2-dimethylhydrazine dihydrochloride (DMH) 20 mg/kg/bw thrice before the initiation of every DSS cycle (3%w/v in drinking water). One week after the initiation of DSS treatment, aspirin (40 mg/kg; p.o.) and zinc in the form of zinc sulphate (3 mg/kg; p.o.) were administered for 8 weeks. Combination of aspirin and zinc as intervention significantly ameliorated DAI score, myeloperoxidase activity, histological score, apoptotic cells and protein expression of various inflammatory markers including nuclear factor kappa light chain enhancer of activated B cells (NFκBp65), cycloxygenase-2 (COX-2) and interleukin-6 (IL-6); proliferation markers such as proliferating cell nuclear antigen (PCNA), signal transducer and activator of transcription 3 (STAT3) expression significantly decreased, and antioxidant enzymes nuclear factor erythroid 2-related factor 2 (Nrf-2), metallothionein, catalase and superoxide dismutase (SOD) significantly increased as evaluated by immunohistochemistry and western blot analysis.
Collapse
Affiliation(s)
- Singothu Siva Nagendra Babu
- Facility for Risk Assessment and Intervention Studies, Dept. of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, S.A.S Nagar, Punjab, India, 160062
| | - Shivani Singla
- Facility for Risk Assessment and Intervention Studies, Dept. of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, S.A.S Nagar, Punjab, India, 160062
| | - Gopabandhu Jena
- Facility for Risk Assessment and Intervention Studies, Dept. of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, S.A.S Nagar, Punjab, India, 160062.
| |
Collapse
|
6
|
Sishen Wan Treats Ulcerative Colitis in Rats by Regulating Gut Microbiota and Restoring the Treg/Th17 Balance. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:1432816. [PMID: 36619196 PMCID: PMC9822768 DOI: 10.1155/2022/1432816] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 12/09/2022] [Accepted: 12/12/2022] [Indexed: 01/01/2023]
Abstract
Objective This study was aimed to explore the mechanism of Sishen Wan (SSW) in treating ulcerative colitis (UC) in a rat model of spleen-kidney yang deficiency pattern by regulating gut microbiota and the content of butyric acid in short-chain fatty acid (SCFAs) and restoring regulatory T (Treg)/T helper type 17 (Th17) balance from the perspective of the correlation between gut microbiota and immune function. Methods The UC rat model of spleen-kidney yang deficiency pattern was established by the method of combining disease and syndrome (intragastric administration of senna leaf, subcutaneous injection of hydrocortisone, and enema with 2,4-dinitrobenzenesulfonic acid (DNBS)/ethanol solution). After successful modeling, rats were randomly divided into six groups: the blank group, model group, low-, middle-, and high-dose Sishen Wan groups, and mesalazine group. Samples were taken after continuous administration for 3 weeks. The general conditions and body weight of the rats were observed and recorded, and the disease activity index (DAI) score was calculated. Colonic mucosal injury was observed, and a colonic mucosal damage index (CMDI) score was calculated. Histopathological changes in colon tissues were determined by hematoxylin and eosin (H&E) staining, and the histopathological score (HS) was calculated. The serum levels of transforming growth factor-β1 (TGF-β1), interleukin (IL)-6, IL-10, and IL-17 were determined by enzyme-linked immunosorbent assay (ELISA) assays. The expression of TGF-β1, signal transducer and activator of transcription 3 (STAT3), and peroxisome proliferator-activated receptor γ (PPARγ) was determined by Western blot analysis. The proportion of Th17 and Treg cells in colon tissue was determined by flow cytometry. The relative abundance of gut microbiota was determined by 16S rDNA sequencing, and the concentration of butyric acid of SCFAs was determined by gas chromatography-mass spectrometry (GC-MS). Results Administration of SSW significantly improved the pathological changes of colon tissue in UC rats and could attenuate the DAI and CMDI scores, and the HS. SSW significantly decreased the serum levels of IL-6 and IL-17 and increased the serum levels of TGF-β1 and IL-10. In addition, SSW increased the expression of TGF-β1 and PPARγ and decreased the expression of STAT3 in colon tissue in a dose-dependent manner. Furthermore, SSW significantly decreased the proportion of Th17 cells and increased the proportion of Treg cells in colon tissue. Additionally, SSW altered the gut microbiota, including an increase in the relative abundance of Firmicutes and a decrease in Bacteroidota at the phylum level and an increase in the relative abundance of Lactobacillus at the genus level. Moreover, SSW significantly increased the concentration of butyric acid. Conclusions Combined, these data suggested that SSW increased the relative abundance of firmicutes and the level of butyric acid and restored the balance of Treg/Th17 immune axis and gut homeostasis, thus delaying the progress of UC.
Collapse
|
7
|
Liang X, Wen K, Chen Y, Fang G, Yang S, Li Q. Oral Administration of Therapeutic Enzyme Capsule for the Management of Inflammatory Bowel Disease. Int J Nanomedicine 2022; 17:4843-4860. [PMID: 36262191 PMCID: PMC9574266 DOI: 10.2147/ijn.s378073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 10/06/2022] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Oral administration of proteins/peptides is challenging in clinical application due to their instability and susceptibility in the gastrointestinal tract. MATERIALS AND METHODS The in situ polymerization on the surface of enzymes was used to encapsulate antioxidant enzymes (superoxide dismutase (SOD) and catalase (CAT)) in polymeric shells, and the reactive oxygen species (ROS) scavenging ability was monitored based on DCFH-DA probe using flow cytometry and confocal laser scanning microscopy. The mRNA expression level of pro-inflammatory factors was assessed by real-time qPCR, using lipopolysaccharide-induced RAW264.7 cells as a model. Finally, the enzyme capsules were orally administered for the treatment of inflammatory bowel disease using dextran sodium sulfate (DSS)-induced colitis mice as a model, based on the evaluation of the disease-associated index, ROS level and pro-inflammatory cytokines' expression. RESULTS The enzyme capsules could effectively scavenge the intracellular reactive oxygen species (ROS) through the cascade catalysis of SOD and CAT, and thus protect the cells from ROS-induced oxidative damage. Meanwhile, the enzyme capsules could inhibit the secretion of pro-inflammatory cytokines from macrophages, thereby achieving favorable anti-inflammation effect. Oral administration of enzyme capsules could facilitate the accumulation of enzymes in the inflamed colon tissues of DSS-induced colitis mice. Moreover, the oral delivery of enzyme capsules could effectively alleviate the symptoms associated with colitis, attributing to the excellent ROS scavenging ability and the inhibition of pro-inflammatory cytokines' level. CONCLUSION In summary, our findings provided a promising approach to construct enzyme-based nano-formulations with favorable therapeutic efficacy and biocompatibility, exhibiting great potential in the treatment of gastrointestinal diseases in an oral administration manner.
Collapse
Affiliation(s)
- Xiao Liang
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, People’s Republic of China
| | - Kai Wen
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, People’s Republic of China
| | - Yingxuan Chen
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, People’s Republic of China
| | - Guangxu Fang
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, People’s Republic of China
| | - Shengcai Yang
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, People’s Republic of China
| | - Quanshun Li
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, People’s Republic of China,Correspondence: Quanshun Li; Shengcai Yang, Tel/Fax +86-431-85155200, Email ;
| |
Collapse
|
8
|
Ovalbumin and its Maillard reaction products ameliorate dextran sulfate sodium-induced colitis by mitigating the imbalance of gut microbiota and metabolites. Int J Biol Macromol 2022; 222:715-724. [PMID: 36174860 DOI: 10.1016/j.ijbiomac.2022.09.224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 09/24/2022] [Accepted: 09/24/2022] [Indexed: 11/20/2022]
Abstract
The Maillard reaction reduces the gastrointestinal digestibility of ovalbumin (OVA) in vitro. However, the regulatory effects of OVA and its Maillard reaction products (MRPs) on gut microbiota disorders remain unknown. In this study, the influence of OVA and its MRPs on the modulation of gut microbiota in mice with dextran sulfate sodium (DSS)-induced colitis was investigated. The results revealed that OVA and its MRPs intake could alleviate the symptoms of colitis and improve the richness and diversity of the gut microbiota. Moreover, the results revealed that the Maillard reaction would block the release of lysine and essential amino acids in vivo, but they variously regulated the gut microbiota and the levels of short-chain fatty acids (SCFAs) due to their indigestible properties. These findings provide a basic theory for the rational utilization of OVA and its MRPs as nutraceutical food ingredients in regulating the gut microbiota for maintaining intestinal health.
Collapse
|
9
|
Animal Models and Pathogenesis of Ulcerative Colitis. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:5927384. [PMID: 35860188 PMCID: PMC9293489 DOI: 10.1155/2022/5927384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 06/09/2022] [Accepted: 06/17/2022] [Indexed: 01/30/2023]
Abstract
Background Ulcerative colitis (UC) is a kind of inflammatory bowel disease which is needed to be predicted. Objective To analyze various animal models of UC conditions and summarizes the animal selection, model progression, and pathogenic mechanisms of UC animal models. Methods We surveyed the research papers published in PubMed, Google Scholar, Baidu Scholar, CNKI, SciFinder, and Web of Science in the past 5 years and discussed the experimental animals, modeling methods, and pathogenic mechanisms. Results In the selection of experimental animals, rats are considered the best experimental animals. The mainstream modeling methods can be categorized into the chemical stimulation method, immune stimulation method, and compound method, among which the compound method is the most successful. In the study of the pathogenesis of UC, the pathogenesis of UC is due to various pathogenic factors, such as nitric oxide (NO), prostaglandins (PG), proinflammatory factors (IL, TNF-α), and intestinal flora. Conclusion The method of building an animal model of UC is well-established, providing a more targeted selection of animal models for future related experiments.
Collapse
|
10
|
Che YH, Yu ZY, Geng FN, He M, Yang ZB, Zheng YY, Zhang CG, Zhao Y, Wu XM, Liu H. Effects of the Traditional Chinese Medicine Formula Ento-PB in Experimental Models of Ulcerative Colitis. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221078453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The traditional Chinese medicine (TCM) formula Ento-PB containing Periplaneta americana (Linnaeus) (Blattidae) and Taraxacum mongolicum Hand.-Mazz. (Compositae) has great potential for treating inflammation. This study explored the effects of Ento-PB on ulcerative colitis (UC). The UC model was induced with 2,4,6-trinitrobenzene sulfonic acid (TNBS) by enema. Male Sprague–Dawley rats (n = 32) were divided into four groups: (1) control group that received 2.5 mL/kg normal saline, (2) TNBS group that received 2.5 mL/kg normal saline, (3) Ento-PB low-dose group that received 100 mg/kg Ento-PB, and (4) Ento-PB high-dose group that received 200 mg/kg Ento-PB. Rats were administered drugs via enema for 14 days after modeling. The disease activity index (DAI), colon mucosa damage index (CMDI), histopathological score (HS), levels of interleukin-8 (IL-8), IL-10, IL-17, tumor necrosis factor-α (TNF-α), and C-reactive protein (CRP) in serum, contents of IL-2, myeloperoxidase (MPO), transforming growth factor-β1 (TGF-β1), and epidermal growth factor (EGF) in the colon, and abundance of Bifidobacterium, Lactobacillus, Enterococcus, Bacteroides, and Escherichia coli were assessed. Ento-PB administration showed a significant reduction in DAI, CMDI, and HS, contents of IL-2, IL-8, IL-17, TNF-α, CRP, and MPO, and a significant increase in the levels of IL-10, TGF-β1, and EGF. Compared with the TNBS-administered group, the abundance of Bifidobacterium, Lactobacillus, Enterococcus, and E. coli decreased, while an obvious increase in the proportion of Bacteroides was found in the Ento-PB-administered groups. Ento-PB alleviated inflammation in UC by regulating the equilibrium of Th1/Th17/Treg cytokines and recovering the imbalance between the gut microbiota. Applying Ento-PB in treating UC could be suggested.
Collapse
Affiliation(s)
- Yi-Hao Che
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, China
- National-Local Joint Engineering Research Center of Entomoceutics, College of Pharmacy,Dali University, Dali, Yunnan, China
- South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, Guangdong, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Zheng-Yong Yu
- Yunnan Provincial 2011 Collaborative Innovation Center for Entomoceutics, College of Pharmacy, Dali University, Dali, Yunnan, China
- Yunnan Provincial Engineering Research Center for Comprehensive Development and Utilization of Special Spice Plants R&D,Wenshan University, Wenshan, Yunnan, China
| | - Fu-Neng Geng
- Yunnan Provincial 2011 Collaborative Innovation Center for Entomoceutics, College of Pharmacy, Dali University, Dali, Yunnan, China
- Good Doctor Pharmaceutical Group Co. Ltd, Chengdu, Sichuan, China
| | - Miao He
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, China
- National-Local Joint Engineering Research Center of Entomoceutics, College of Pharmacy,Dali University, Dali, Yunnan, China
- Yunnan Provincial 2011 Collaborative Innovation Center for Entomoceutics, College of Pharmacy, Dali University, Dali, Yunnan, China
| | - Zhi-Bin Yang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, China
- National-Local Joint Engineering Research Center of Entomoceutics, College of Pharmacy,Dali University, Dali, Yunnan, China
- Yunnan Provincial 2011 Collaborative Innovation Center for Entomoceutics, College of Pharmacy, Dali University, Dali, Yunnan, China
| | - Yuan-Yuan Zheng
- Yunnan Provincial 2011 Collaborative Innovation Center for Entomoceutics, College of Pharmacy, Dali University, Dali, Yunnan, China
- Neuro Psychiatric Hospital of Jilin Province, Siping, Jilin, China
| | - Cheng-Gui Zhang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, China
- National-Local Joint Engineering Research Center of Entomoceutics, College of Pharmacy,Dali University, Dali, Yunnan, China
- Yunnan Provincial 2011 Collaborative Innovation Center for Entomoceutics, College of Pharmacy, Dali University, Dali, Yunnan, China
| | - Yu Zhao
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, China
- National-Local Joint Engineering Research Center of Entomoceutics, College of Pharmacy,Dali University, Dali, Yunnan, China
- Yunnan Provincial 2011 Collaborative Innovation Center for Entomoceutics, College of Pharmacy, Dali University, Dali, Yunnan, China
| | - Xiu-Mei Wu
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, China
- National-Local Joint Engineering Research Center of Entomoceutics, College of Pharmacy,Dali University, Dali, Yunnan, China
- Yunnan Provincial 2011 Collaborative Innovation Center for Entomoceutics, College of Pharmacy, Dali University, Dali, Yunnan, China
| | - Heng Liu
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, China
- National-Local Joint Engineering Research Center of Entomoceutics, College of Pharmacy,Dali University, Dali, Yunnan, China
- Yunnan Provincial 2011 Collaborative Innovation Center for Entomoceutics, College of Pharmacy, Dali University, Dali, Yunnan, China
| |
Collapse
|
11
|
Scarpellini E, Balsiger LM, Maurizi V, Rinninella E, Gasbarrini A, Giostra N, Santori P, Abenavoli L, Rasetti C. Zinc and gut microbiota in health and gastrointestinal disease under the COVID-19 suggestion. Biofactors 2022; 48:294-306. [PMID: 35218585 PMCID: PMC9082519 DOI: 10.1002/biof.1829] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 01/30/2022] [Indexed: 12/12/2022]
Abstract
Microelements represent an emerging resource for medicine and its preventive branch. Zinc is the second most abundant element in our organism with peculiar physiologic functions and pathophysiologic implications in systemic and gastrointestinal (GI) diseases. It interacts very often with gut microbiota (GM) and can affect natural course of GI diseases through a bidirectional relationship with intestinal bugs. We aimed to review literature data regarding zinc chemistry, role in health, and GI diseases in man with a special focus on its interaction with GM. We conducted a search on the main medical databases for original articles, reviews, meta-analyses, randomized clinical trials and case series using the following keywords and acronyms and their associations: zinc, microelements, gut microbiota, gut health, and COVID-19. Zinc has a rapid and simple metabolism and limited storage within our body. Its efficacy on immune system modulation reflects on improved response to pathogens, reduced inflammatory response, and improved atopic/allergic reactions. Zinc is also involved in cell cycle regulation (namely, apoptosis) with potential anti-cancerogenic effects. All these effects are in a "symbiotic" relationship with GM. Finally, zinc shows preliminary viral antireplicative effects. Zinc seems to gain more and more evidences on its efficacy in allergic, atopic and infectious diseases treatment, and prevention. COVID-19 can be the booster for research on future applications of zinc as perfect "postbiotic" in medicine.
Collapse
Affiliation(s)
- Emidio Scarpellini
- Hepatology and Internal Medicine Unit“Madonna del soccorso” General HospitalSan Benedetto del TrontoItaly
- T.A.R.G.I.DGasthuisberg University Hospital, KULeuvenLuevenBelgium
| | | | - Valentina Maurizi
- Internal Medicine Residency ProgramUniversità Politecnica delle MarcheAnconaItaly
| | - Emanuele Rinninella
- Clinical Nutrition Unit, Gastroenterology, EndocrinologyNephrology and Urology Department, Fondazione Policlinico A. Gemelli IRCCSRomeItaly
- Institute of Medical PathologyCatholic University of the Sacred HeartRomeItaly
| | - Antonio Gasbarrini
- Institute of Medical PathologyCatholic University of the Sacred HeartRomeItaly
| | - Nena Giostra
- Hepatology and Internal Medicine Unit“Madonna del soccorso” General HospitalSan Benedetto del TrontoItaly
| | - Pierangelo Santori
- Hepatology and Internal Medicine Unit“Madonna del soccorso” General HospitalSan Benedetto del TrontoItaly
| | | | - Carlo Rasetti
- Hepatology and Internal Medicine Unit“Madonna del soccorso” General HospitalSan Benedetto del TrontoItaly
| |
Collapse
|
12
|
Ding R, Xiao Z, Jiang Y, Yang Y, Ji Y, Bao X, Xing K, Zhou X, Zhu S. Calcitriol ameliorates damage in high-salt diet-induced hypertension: Evidence of communication with the gut-kidney axis. Exp Biol Med (Maywood) 2021; 247:624-640. [PMID: 34894804 DOI: 10.1177/15353702211062507] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Several studies have established a link between high-salt diet, inflammation, and hypertension. Vitamin D supplementation has shown anti-inflammatory effects in many diseases; gut microbiota is also associated with a wide variety of cardiovascular diseases, but potential role of vitamin D and gut microbiota in high-salt diet-induced hypertension remains unclear. Therefore, we used rats with hypertension induced by a high-salt diet as the research object and analyzed the transcriptome of their tissues (kidney and colon) and gut microbiome to conduct an overall analysis of the gut-kidney axis. We aimed to confirm the effects of high salt and calcitriol on the gut-kidney immune system and the composition of the intestinal flora. We demonstrate that consumption of a high-salt diet results in hypertension and inflammation in the colon and kidney and alteration of gut microbiota composition and function. High-salt diet-induced hypertension was found to be associated with seven microbial taxa and mainly associated with reduced production of the protective short-chain fatty acid butyrate. Calcitriol can reduce colon and kidney inflammation, and there are gene expression changes consistent with restored intestinal barrier function. The protective effect of calcitriol may be mediated indirectly by immunological properties. Additionally, the molecular pathways of the gut microbiota-mediated blood pressure regulation may be related to circadian rhythm signals, which needs to be further investigated. An innovative association analysis of the microbiota may be a key strategy to understanding the association between gene patterns and host.
Collapse
Affiliation(s)
- Ruifeng Ding
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Zilong Xiao
- Department of Cardiology, Zhongshan Hospital of Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China
| | - Yufeng Jiang
- Department of Nephrology, 66329Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200021, China.,Key Laboratory of Liver and Kidney Diseases (Shanghai University of Traditional Chinese Medicine), Ministry of Education, Shanghai 201203, China
| | - Yi Yang
- Shanghai Cinoasia Institute, Shanghai 200438, China
| | - Yang Ji
- School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Xunxia Bao
- Shanghai Cinoasia Institute, Shanghai 200438, China
| | - Kaichen Xing
- Shanghai Cinoasia Institute, Shanghai 200438, China
| | - Xinli Zhou
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Sibo Zhu
- School of Life Sciences, Fudan University, Shanghai 200438, China
| |
Collapse
|
13
|
Ge H, Cai Z, Chai J, Liu J, Liu B, Yu Y, Liu J, Zhang T. Egg white peptides ameliorate dextran sulfate sodium-induced acute colitis symptoms by inhibiting the production of pro-inflammatory cytokines and modulation of gut microbiota composition. Food Chem 2021; 360:129981. [PMID: 34020366 DOI: 10.1016/j.foodchem.2021.129981] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 04/01/2021] [Accepted: 04/26/2021] [Indexed: 12/24/2022]
Abstract
Egg white peptides (EWPs) can be effectively used to alleviate and treat inflammatory diseases due to their anti-oxidation, anti-inflammation, and microbiota regulation capabilities. A dextran sodium sulfate (DSS)-induced colitis model was used to clarify the regulatory effects of EWPs on colitis. Forty-three peptide sequences were identified from EWPs using LC-MS/MS. The results demonstrated that EWPs decreased the levels of pro-inflammatory cytokines and the extent of crypt damage in a dose-dependent manner. 16S rRNA gene sequencing results indicated that 200 mg/kg EWPs significantly increased the relative abundance of beneficial bacteria Lactobacillus and Candidatus_Saccharimonas, and reduced the relative abundance of pathogenic bacteria Ruminiclostridium and Akkermansia. In addition, the degree of correlation between pro-inflammatory cytokines and microbiota was as follows: interleukin (IL)-1β > IL-8 > IL-6 > tumor necrosis factor-α To summarize, EWPs contributed to the alleviation of colitis symptoms and the intestinal injury through anti-inflammatory effects, repair of intestinal mucosa, and modulation of gut microbiota.
Collapse
Affiliation(s)
- Huifang Ge
- Jilin Provincial Key Laboratory of Nutrition and Functional Food, Jilin University, Changchun 130062, People's Republic of China; College of Food Science and Engineering, Jilin University, Changchun 130062, People's Republic of China
| | - Zhuanzhang Cai
- Jilin Provincial Key Laboratory of Nutrition and Functional Food, Jilin University, Changchun 130062, People's Republic of China; College of Food Science and Engineering, Jilin University, Changchun 130062, People's Republic of China
| | - Jiale Chai
- Jilin Provincial Key Laboratory of Nutrition and Functional Food, Jilin University, Changchun 130062, People's Republic of China; College of Food Science and Engineering, Jilin University, Changchun 130062, People's Republic of China
| | - Jiyun Liu
- Department of Chemistry and Biomedicine, Linnaeus University, Kalmar 39182, Sweden
| | - Boqun Liu
- Jilin Provincial Key Laboratory of Nutrition and Functional Food, Jilin University, Changchun 130062, People's Republic of China; College of Food Science and Engineering, Jilin University, Changchun 130062, People's Republic of China
| | - Yiding Yu
- Jilin Provincial Key Laboratory of Nutrition and Functional Food, Jilin University, Changchun 130062, People's Republic of China; College of Food Science and Engineering, Jilin University, Changchun 130062, People's Republic of China
| | - Jingbo Liu
- Jilin Provincial Key Laboratory of Nutrition and Functional Food, Jilin University, Changchun 130062, People's Republic of China; College of Food Science and Engineering, Jilin University, Changchun 130062, People's Republic of China.
| | - Ting Zhang
- Jilin Provincial Key Laboratory of Nutrition and Functional Food, Jilin University, Changchun 130062, People's Republic of China; College of Food Science and Engineering, Jilin University, Changchun 130062, People's Republic of China.
| |
Collapse
|
14
|
Liu SS, Xu YS, Hilola A, Zhou N, He M, Zhang CG, Liu H. Study on the effect of the treatment of Periplaneta americana L. extract Ento-B by Dinitrochlorobenzene combined with acetic acid induced UC in rats. Acta Cir Bras 2021; 36:e360102. [PMID: 33605307 PMCID: PMC7892194 DOI: 10.1590/acb360102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 11/05/2020] [Accepted: 12/02/2020] [Indexed: 11/21/2022] Open
Abstract
PURPOSE To study the Periplaneta americana L. extract Ento-B on the treatment of chronic ulcerative colitis induced by 2,4-dinitrochlorobenzene and acetic acid in rats and to explore its primary mechanism of action. METHODS Using 2,4-dinitrochlorobenzene combined with acetic acid to induce chronic ulcerative colitis (chronic UC) in rats. The sulfasalazine (400 mg/kg) and Ento-B (200 mg/kg, 100 mg/kg,50 mg/kg) were given by intragastric administration and the effect was evaluated according to the disease activity index (DAI) score, colon mucosal injury index (CMDI) score, histopathological score (HS) and the serum levels of Interleukin-4(IL-4), Interleukin-10(IL-10), Tumor necrosis factor-α(TNF-α), Malondialdehyde(MDA), Superoxide dismutase(SOD) and Inducible nitric oxide synthase(iNOS.). RESULTS Compared with the model group, all doses of Ento-B could reduce the score of CMDI (p < 0.05), HS(p < 0.05 or p < 0.01), significantly increased the expression of IL-4, IL-10, SOD (p < 0.01) and decreased the levels of TNF-α, MDA, iNOS in serum of UC rats, significantly improving the degree of colon lesionsin UC rats. CONCLUSIONS Ento-B may play an important role in the treatment of ulcerative colitis induced byUC rats. The mechanism may be related to the increased expression of IL-4, IL-10, SOD and reduced expression of TNF-α, MDA, iNOS.
Collapse
Affiliation(s)
- Sheng-Shuai Liu
- MM. Dali University – Yunnan Provincial Key Laboratory of
Entomological Biopharmaceutical R&D - Yunnan, China
| | - Yu-Sheng Xu
- MD. Hunan Agricultural University – Changsha, Hunan, China
| | - Ahunova Hilola
- MD. Namangan State University – Life Sciences Faculty – Uzbekistan,
China
| | - Nong Zhou
- MD. Chongqing Three Gorges University – College of Biology and Food
Engineering – Chongqing Engineering Laboratory – Chongqing, China
| | - Miao He
- MD. Dali University – National-Local Joint Engineering Research
Center of Entomoceutics – Yunnan, China
| | - Cheng-Gui Zhang
- MD. Dali University – National-Local Joint Engineering Research
Center of Entomoceutics – Yunnan, China
| | - Heng Liu
- MD. Dali University – Yunnan Provincial Key Laboratory of
Entomological Biopharmaceutical R&D – Yunnan, China
| |
Collapse
|
15
|
Gao Y, Li T, Duan S, Lyu L, Li Y, Xu L, Wang Y. Impact of titanium dioxide nanoparticles on intestinal community in 2,4,6-trinitrobenzenesulfonic acid (TNBS)-induced acute colitis mice and the intervention effect of vitamin E. NANOSCALE 2021; 13:1842-1862. [PMID: 33438704 DOI: 10.1039/d0nr08106j] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Titanium dioxide nanoparticles (TiO2-NPs) are widely applied as additives in foods due to their excellent whitening and brightening capability. Although the toxicity and antibacterial activity of TiO2-NPs have been extensively studied, their impact on the gut microbiota in vivo still remains unclear, especially in animals with gastrointestinal disorders. In the present study, healthy mice and TNBS-induced colitis mice were administered with TiO2-NPs (38.3 ± 9.3 nm) orally at a dose of 100 mg per kg bw daily for 10 days to study the impact of TiO2-NPs on the gut microbiota and colitis development. Moreover, the mechanism of TiO2-NPs on the gut microbiota was also discussed when the colitis mice were additionally administered with vitamin E to remove ROS. Changes in the microbiota community structure and gut-associated function prediction were analyzed through bioinformatics. The result showed that the oral administration of TiO2-NPs mitigated colitis symptoms by reducing the DAI and CMDI scores and TNF-α level. Furthermore, 16S rDNA sequencing analysis showed that the structure and function prediction of gut microbiota could be modified in healthy mice and colitis mice after exposure to TiO2-NPs, but the opposite physiological effect occurred since the dominant flora varied in these two groups. Moreover, vitamin E intervention did not change the effects of TiO2-NPs on the microbiota community structure and gut-associated function, which indicates that the mechanism of the biological effects of TiO2-NPs on the gut microbiota may not be associated with their ability to induce the generation of ROS. In summary, our work firstly found that TiO2-NPs could regulate the gut microbiota of colitis mice and participate in the mitigation of TNBS-induced acute colitis, and the capability of TiO2-NPs to induce the generation of ROS inducement did not contribute to this process.
Collapse
Affiliation(s)
- Yanjun Gao
- Department of Occupational and Environmental Health Sciences School of Public Health Peking University, Beijing 100191, China.
| | | | | | | | | | | | | |
Collapse
|
16
|
Ji E, Wang T, Xu J, Fan J, Zhang Y, Guan Y, Yang H, Wei J, Zhang G, Huang L. Systematic Investigation of the Efficacy of Sinitang Decoction Against Ulcerative Colitis. Front Pharmacol 2020; 11:1337. [PMID: 32982747 PMCID: PMC7490561 DOI: 10.3389/fphar.2020.01337] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 08/11/2020] [Indexed: 12/12/2022] Open
Abstract
The aim of this study was to investigate the precise clinical use of Sinitang decoction (SNT) in ulcerative colitis (UC). Network pharmacology-based analysis of the drug components-targets-diseases-pathways was used to predict the possible clinical applications of SNT. Next, 2,4,6-trinitrobenzenesulfonic acid (TNBS) was used to establish a rat model of UC, and the efficacy of SNT against UC was tested, followed by a proteomic analysis of the specific signatures regulated by SNT against UC. SNT was predicted to be effective in inflammatory bowel disease, UC, and several other diseases. In the rats with UC, SNT decreased the disease activity index and colon mucosal damage index compared to the untreated UC model rats. Additionally, SNT reversed the upregulated levels of serum tumor necrosis factor (TNF)-α, prostaglandin E2 (PGE2), interleukin (IL)-6, and nitric oxide (NO) in UC model rats. The proteomic analysis identified 78 proteins that were differentially regulated by SNT in the rats with UC, which were associated with the Gene Ontology terms sulfur compound binding, calcium ion binding, and Toll-like receptor (TLR)-4 binding. Among these differentially regulated proteins, C-reactive protein (CRP) and collagen alpha-1(XII) chain (COL12A1) were found to be signature proteins associated with the efficacy of SNT against UC. This study represents the first precise investigation of the efficacy and mechanisms of SNT against UC, and shows that SNT is a promising candidate for personalized management of UC.
Collapse
Affiliation(s)
- Enhui Ji
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China.,Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Tingting Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jing Xu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jianwei Fan
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co., Ltd., Linyi, China
| | - Yi Zhang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yongxia Guan
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co., Ltd., Linyi, China
| | - Hongjun Yang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Junying Wei
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Guimin Zhang
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co., Ltd., Linyi, China
| | - Luqi Huang
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China.,Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| |
Collapse
|
17
|
Che YH, Yang ZB, Zhang HC, Wu XM, Sun MZ, Tang M, Wang PC, Geng FN, Wan P, Liu H, He M, Zhao Y, Zhang CG. Study on the effect of Periplaneta americana on ulcerative colitis in rats induced by 2,4,6-trinitrobenzene sulfonic acid. EUR J INFLAMM 2020. [DOI: 10.1177/2058739220942629] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Ulcerative colitis (UC) is a chronic inflammatory disease of intestinal tract, and Periplaneta americana has been found to be effective in the treatment for UC. The purpose of the study was to investigate the therapeutic effect of Periplaneta americana extract Ento-A on UC in rats induced by 2,4,6-trinitrobenzene sulfonic acid (TNBS) and to explore its mechanism. The Sprague-Dawley (SD) rats were randomly divided into normal control group; TNBS-treated group; sulfasalazine (SASP) treated group; Ento-A low- (50 mg/kg), medium- (100 mg/kg), and high-dose (200 mg/kg) groups, respectively. The UC model of rats was induced via TNBS. Disease activity index (DAI) was used to evaluate the severity of UC in rats. The macroscopic and microscopic damages of colon were accessed by colon mucosa damage index (CMDI) and histopathological score (HS), respectively. The levels of interleukin-4 (IL-4), interleukin-17 (IL-17), tumor necrosis factor-α (TNF-α), and interferon-γ (IFN-γ) in serum and the contents of myeloperoxidase (MPO), transforming growth factor-β1 (TGF-β1), and epidermal growth factor (EGF) in colonic mucosa were measured by enzyme-linked immunosorbent assay (ELISA). Compared with the normal control group, the TNBS-treated group showed increase in DAI, CMDI, HS, IL-17, TNF-α, IFN-γ as well as MPO and decrease in the levels of IL-4, EGF, and TGF-β1. However, Ento-A-administrated groups reversed the changes in the DAI, CMDI, HS, and the cytokines caused by TNBS. The study indicates that Periplaneta americana extract Ento-A can effectively alleviate the inflammation in TNBS-induced UC of rats, and the mechanism of that may be related to restoring the balance of T helper 1 (Th1)/Th2/Th17/T regulatory (Treg) cytokines.
Collapse
Affiliation(s)
- Yi-Hao Che
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, Yunnan, China
- National-Local Joint Engineering Research Center of Entomoceutics, Dali University, Dali, Yunnan, China
| | - Zhi-Bin Yang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, Yunnan, China
- National-Local Joint Engineering Research Center of Entomoceutics, Dali University, Dali, Yunnan, China
- Yunnan Provincial 2011 Collaborative Innovation Center for Entomoceutics, Dali University, Dali, Yunnan, China
| | - Han-Chao Zhang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, Yunnan, China
- National-Local Joint Engineering Research Center of Entomoceutics, Dali University, Dali, Yunnan, China
| | - Xiu-Mei Wu
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, Yunnan, China
- National-Local Joint Engineering Research Center of Entomoceutics, Dali University, Dali, Yunnan, China
- Yunnan Provincial 2011 Collaborative Innovation Center for Entomoceutics, Dali University, Dali, Yunnan, China
| | - Min-Zhe Sun
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, Yunnan, China
- National-Local Joint Engineering Research Center of Entomoceutics, Dali University, Dali, Yunnan, China
| | - Miao Tang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, Yunnan, China
- National-Local Joint Engineering Research Center of Entomoceutics, Dali University, Dali, Yunnan, China
| | - Peng-Chuan Wang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, Yunnan, China
- National-Local Joint Engineering Research Center of Entomoceutics, Dali University, Dali, Yunnan, China
| | - Fu-Neng Geng
- Good Doctor Pharmaceutical Group, Chengdu, Sichuan, China
| | - Ping Wan
- Department of Gastroenterology, The First People’s Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Heng Liu
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, Yunnan, China
- National-Local Joint Engineering Research Center of Entomoceutics, Dali University, Dali, Yunnan, China
- Yunnan Provincial 2011 Collaborative Innovation Center for Entomoceutics, Dali University, Dali, Yunnan, China
| | - Miao He
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, Yunnan, China
- National-Local Joint Engineering Research Center of Entomoceutics, Dali University, Dali, Yunnan, China
- Yunnan Provincial 2011 Collaborative Innovation Center for Entomoceutics, Dali University, Dali, Yunnan, China
| | - Yu Zhao
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, Yunnan, China
- National-Local Joint Engineering Research Center of Entomoceutics, Dali University, Dali, Yunnan, China
- Yunnan Provincial 2011 Collaborative Innovation Center for Entomoceutics, Dali University, Dali, Yunnan, China
| | - Cheng-Gui Zhang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali University, Dali, Yunnan, China
- National-Local Joint Engineering Research Center of Entomoceutics, Dali University, Dali, Yunnan, China
- Yunnan Provincial 2011 Collaborative Innovation Center for Entomoceutics, Dali University, Dali, Yunnan, China
| |
Collapse
|
18
|
Song C, Gao X, Song W, Zeng D, Shan S, Yin Y, Li Y, Baranenko D, Lu W. Simulated spatial radiation impacts learning and memory ability with alterations of neuromorphology and gut microbiota in mice. RSC Adv 2020; 10:16196-16208. [PMID: 35493686 PMCID: PMC9052872 DOI: 10.1039/d0ra01017k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 04/01/2020] [Indexed: 12/26/2022] Open
Abstract
Complex space environments, including microgravity and radiation, affect the body's central nervous system, endocrine system, circulatory system, and reproductive system. Radiation-induced aberration in the neuronal integrity and cognitive functions are particularly well known. Moreover, ionizing radiation is a likely contributor to alterations in the microbiome. However, there is a lacuna between radiation-induced memory impairment and gut microbiota. The present study was aimed at investigating the effects of simulated space-type radiation on learning and memory ability and gut microbiota in mice. Adult mice were irradiated by 60Co-γ rays at 4 Gy to simulate spatial radiation; behavioral experiments, pathological experiments, and transmission electron microscopy all showed that radiation impaired learning and memory ability and hippocampal neurons in mice, which was similar to the cognitive impairment in neurodegenerative diseases. In addition, we observed that radiation destroyed the colonic structure of mice, decreased the expression of tight junction proteins, and increased inflammation levels, which might lead to dysregulation of the intestinal microbiota. We found a correlation between the brain and colon in the changes in neurotransmitters associated with learning and memory. The 16S rRNA results showed that the bacteria associated with these neurotransmitters were also changed at the genus level and were significantly correlated. These results indicate that radiation-induced memory and cognitive impairment can be linked to gut microbiota through neurotransmitters.
Collapse
Affiliation(s)
- Chen Song
- Institute of Extreme Environment Nutrition and Protection, Harbin Institute of Technology Harbin China
- National Local Joint Laboratory of Extreme Environmental Nutritional Molecule Synthesis Transformation and Separation Harbin China
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin China
| | - Xin Gao
- Institute of Extreme Environment Nutrition and Protection, Harbin Institute of Technology Harbin China
- National Local Joint Laboratory of Extreme Environmental Nutritional Molecule Synthesis Transformation and Separation Harbin China
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin China
| | - Wei Song
- College of Food Science and Technology, Northwest University Xi'an 710069 China
- Laboratory of Nutritional and Healthy Food-Individuation Manufacturing Engineering Xi'an 710069 Shanxi China
| | - Deyong Zeng
- Institute of Extreme Environment Nutrition and Protection, Harbin Institute of Technology Harbin China
- National Local Joint Laboratory of Extreme Environmental Nutritional Molecule Synthesis Transformation and Separation Harbin China
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin China
| | - Shan Shan
- Institute of Extreme Environment Nutrition and Protection, Harbin Institute of Technology Harbin China
- National Local Joint Laboratory of Extreme Environmental Nutritional Molecule Synthesis Transformation and Separation Harbin China
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin China
| | - Yishu Yin
- Institute of Extreme Environment Nutrition and Protection, Harbin Institute of Technology Harbin China
- National Local Joint Laboratory of Extreme Environmental Nutritional Molecule Synthesis Transformation and Separation Harbin China
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin China
| | - Yongzhi Li
- Institute of Extreme Environment Nutrition and Protection, Harbin Institute of Technology Harbin China
- China Astronaut Research and Training Centre Beijing China
| | - Denis Baranenko
- Biotechnologies of the Third Millennium, ITMO University Saint-Petersburg Russia
| | - Weihong Lu
- Institute of Extreme Environment Nutrition and Protection, Harbin Institute of Technology Harbin China
- National Local Joint Laboratory of Extreme Environmental Nutritional Molecule Synthesis Transformation and Separation Harbin China
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin China
| |
Collapse
|
19
|
Li M, Luo T, Huang Y, Su J, Li D, Chen X, Zhang Y, Huang L, Li S, Jiao C, Li W, Xie Y, Li W. Polysaccharide from Pycnoporus sanguineus ameliorates dextran sulfate sodium-induced colitis via helper T cells repertoire modulation and autophagy suppression. Phytother Res 2020; 34:2649-2664. [PMID: 32281697 DOI: 10.1002/ptr.6695] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 03/12/2020] [Accepted: 03/21/2020] [Indexed: 12/13/2022]
Abstract
Inflammatory bowel disease (IBD) is a chronic autoimmune disease associated with various risk factors. Pycnoporus sanguineus (L.) Murrill is a saprotrophic fungus used worldwide for its industrial and medical purposes. Here, polysaccharide from P. sanguineus (PPS) was explored for its antiinflammatory potential in a murine colitis model of IBD induced by dextran sulfate sodium (DSS). PPS ameliorated the colitis as manifested by the lowered disease activity index (DAI), prolonged colon, and reduced serum lipopolysaccharide (LPS). PPS recovered the histological lesion by upregulating the expressions of Zonula occludens-1 (ZO-1), E-cadherin, and proliferating cell nuclear antigen (PCNA). PPS inhibited the helper T cells (Th)-mediated immune response by decreasing the proportions of Th cells (including Th2 cells, Th17 cells, and regulatory T cells), which was accompanied with reductions on myeloperoxidase (MPO) activity and releases of several interleukins and chemokines within the colon. Moreover, PPS exhibited an evident inhibition on autophagy, in which the ratio of light chain 3 (LC3) II/I was declined, while the expression of p62 and Beclin-1 was increased. The present study highlighted important clinical implications for the treatment application of PPS against IBD, which relies on the regulation of Th cells repertoire and autophagy suppression to restore epithelium barrier.
Collapse
Affiliation(s)
- Muxia Li
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, People's Republic of China.,State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratoryof Applied Microbiology, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, Guangdong, People's Republic of China
| | - Ting Luo
- Jinan University, Guangzhou, Guangdong, People's Republic of China.,Guangdong Laboratory Animals Monitoring Institute, Guangdong Provincial Key Laboratory of Laboratory Animals, Guangzhou, Guangdong, People's Republic of China
| | - Yong Huang
- Department of Gastrointestinal Surgery, Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, People's Republic of China
| | - Jiyan Su
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratoryof Applied Microbiology, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, Guangdong, People's Republic of China
| | - Dan Li
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, People's Republic of China.,State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratoryof Applied Microbiology, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, Guangdong, People's Republic of China.,Guangdong Yuewei Edible Fungi Technology Co. Ltd., Guangzhou, Guangdong, People's Republic of China
| | - Xiaohong Chen
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, People's Republic of China.,State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratoryof Applied Microbiology, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, Guangdong, People's Republic of China.,Guangdong Yuewei Edible Fungi Technology Co. Ltd., Guangzhou, Guangdong, People's Republic of China
| | - Yifan Zhang
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratoryof Applied Microbiology, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, Guangdong, People's Republic of China
| | - Longhua Huang
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratoryof Applied Microbiology, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, Guangdong, People's Republic of China
| | - Shunxian Li
- Guangdong Yuewei Edible Fungi Technology Co. Ltd., Guangzhou, Guangdong, People's Republic of China
| | - Chunwei Jiao
- Guangdong Yuewei Edible Fungi Technology Co. Ltd., Guangzhou, Guangdong, People's Republic of China
| | - Wenzhi Li
- Infinitus (China) Company Ltd., Guangzhou, Guangdong, People's Republic of China
| | - Yizhen Xie
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratoryof Applied Microbiology, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, Guangdong, People's Republic of China.,Guangdong Yuewei Edible Fungi Technology Co. Ltd., Guangzhou, Guangdong, People's Republic of China
| | - Wende Li
- Guangdong Laboratory Animals Monitoring Institute, Guangdong Provincial Key Laboratory of Laboratory Animals, Guangzhou, Guangdong, People's Republic of China
| |
Collapse
|
20
|
Liu J, Yu L, Mo N, Lan H, Zhang Y, Liu X, Wu Q. Supercritical Fluid Extract of Angelica sinensis and Zingiber officinale Roscoe Ameliorates TNBS-Induced Colitis in Rats. Int J Mol Sci 2019; 20:E3816. [PMID: 31387229 PMCID: PMC6696010 DOI: 10.3390/ijms20153816] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 07/28/2019] [Accepted: 08/02/2019] [Indexed: 12/11/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a worldwide healthcare problem calling for the development of new therapeutic drugs. Angelica sinensis and Zingiber officinale Roscoe are two common dietetic Chinese herbs, which are traditionally used for complementary treatment of gastrointestinal disorders. As bioactive constituents, volatile and pungent substances of these two herbs could be effectively extracted together by supercritical fluid extraction. In this study, the supercritical fluid extract of Angelica sinensis and Zingiber officinale Roscoe (AZ-SFE) was obtained by an optimized extraction process and it was chemically characterized. The anti-inflammatory effect and underlying mechanism of AZ-SFE were evaluated in a lipopolysaccharide (LPS)-induced RAW264.7 cell model and a 2, 4, 6-trinitrobenzenesulfonic acid (TNBS)-induced colitis rat model. AZ-SFE notably inhibited the production of NO in LPS-stimulated macrophages, and it inhibited the proliferation of Concanavalin A (Con A)-induced splenocytes with suppression of the Th1 immune response. In vivo, the study demonstrated that AZ-SFE significantly alleviated disease activity, colonic shortening, macroscopic damage and histological injury of TNBS-treated rats with reduction of oxidative stress, suppression of inflammatory cytokines, and modulation of hepcidin and serum iron. These findings suggested that AZ-SFE may be a promising supplement for current IBD therapy.
Collapse
Affiliation(s)
- Jia Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Ling Yu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Nuolan Mo
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Hai Lan
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Yan Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Xin Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Qing Wu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China.
| |
Collapse
|
21
|
Poursadegh F, Ahadi M, Vosoughinia H, Salehi M, Beheshti Namdar A, Farzanehfar MR, Memar B, Ziaolhagh R. A STROBE compliant observational study on trace elements in patients with ulcerative colitis and their relationship with disease activity. Medicine (Baltimore) 2018; 97:e13523. [PMID: 30593128 PMCID: PMC6314770 DOI: 10.1097/md.0000000000013523] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 11/11/2018] [Indexed: 12/20/2022] Open
Abstract
Nutritional deficiencies and malnutrition are considered to be related to ulcerative colitis (UC); however, the association between serum levels of micronutrients and UC is not well known. This study aimed to evaluate the serum levels of micronutrients in UC patients and investigate their association with disease activity.This cross-sectional study was conducted on UC patients visiting the Department of Gastroenterology at 3 different teaching hospitals between January 2016 and January 2017. UC activity was measured based on Truelove and Witts' severity index and guidelines for colonoscopy. A healthy gender- and age-matched group was also selected. Serum levels of zinc, copper, selenium, ceruloplasmin, albumin, and total protein were compared between the 2 groups of UC patients and healthy subjects using independent-samples t test. Also, the association between serum levels of micronutrients and UC activity was assessed by using Pearson and Spearman correlation coefficient tests. The data were analyzed by SPSS version 21, considering P ≤.05 as the statistical significance level.Overall, 112 (54 male and 58 female) individuals with the mean age of 34.6 years were studied in the 2 groups of UC patients (n = 56) and healthy subjects (n = 56). The 2 groups were homogeneous in terms of age, gender, marital status, place of residence, and educational level (P >.05). The serum levels of total protein (6.41 ± 1.1 vs 7.41 ± 0.4 g/dL; P = .0001), albumin (4.72 ± 1.1 vs 5.19 ± 0.28 g/dL; P = .0001), zinc (679 ± 62 vs 1055 ± 156 μg/L; P = .0001), and selenium (81.85 ± 6.4 vs 108.4 ± 12.98 micg/L; P = .0001) were significantly lower in the UC patients. The serum level of copper did not differ significantly between the 2 groups (P = .1).Considering the simultaneous reduction in nutritional criteria in the UC patient group, malnutrition appears to be a factor affecting micronutrient deficiency in patients with UC.
Collapse
Affiliation(s)
| | - Mitra Ahadi
- Gastroenterology and Hepatology Research Center
| | | | | | | | | | - Bahram Memar
- Surgical Oncology Research Center, Mashhad University of Medical Sciences
| | | |
Collapse
|
22
|
Saleh NY, Abo El Fotoh WMM. Low serum zinc level: The relationship with severe pneumonia and survival in critically ill children. Int J Clin Pract 2018; 72:e13211. [PMID: 29855123 DOI: 10.1111/ijcp.13211] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 04/30/2018] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Zinc deficiency is common among children in developing countries; but, there is still conflicting evidence on whether the alteration in zinc metabolism is the predictive of disease severity in the setting of critical illness. OBJECTIVES To assess serum zinc levels in children admitted with pneumonia, and also to study the relationship between zinc levels and severity and mortality from pneumonia. METHODS In a prospective cohort study, we enrolled 320 critically ill children admitted to the paediatric intensive care unit (PICU) with severe pneumonia (group 1) in addition to 160 children admitted into wards with pneumonia (group 2). Serum zinc measured in all patients on admission. RESULTS Serum zinc level was significantly lower among patients admitted to PICU (group 1) compared with patients admitted to wards (group 2) (P < .001). There was a highly statistically significant decrease in zinc level in critically ill children complicated by sepsis, mechanically ventilated cases and those who died. Regarding the diagnosis of sepsis, zinc had an area under the curve (AUC) of 0.81 while C-reactive protein (CRP) had an AUC of 0.83. Regarding the prognosis, zinc had an AUC of 0.649 for prediction of mortality, whereas the AUC for Pediatric risk of mortality (PRISM), Pediatric index of mortality2 (PIM2) and CRP were 0.83, 0.82 and 0.78, respectively. The combined zinc with PRISM and PIM2 has increased the sensitivity of zinc for mortality from 86.5% to 94.9%. CONCLUSION Zinc has both a diagnostic and a prognostic value for children with pneumonia.
Collapse
Affiliation(s)
- Nagwan Yossery Saleh
- Department of Pediatrics, Faculty of Medicine, Menoufia University Hospital, Shebin El-Kom, Egypt
| | | |
Collapse
|
23
|
Song L, Zhang HJ, Deng AJ, Li J, Li X, Li ZH, Zhang ZH, Wu LQ, Wang SQ, Qin HL. Syntheses and structure-activity relationships on antibacterial and anti-ulcerative colitis properties of quaternary 13-substituted palmatines and 8-oxo-13-substituted dihydropalmatines. Bioorg Med Chem 2018; 26:2586-2598. [PMID: 29680749 DOI: 10.1016/j.bmc.2018.04.025] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Accepted: 04/10/2018] [Indexed: 11/16/2022]
Abstract
In this study, quaternary palmatine is used as a lead compound to design and synthesize derivatives to evaluate bioactivities, with twenty-seven compounds of four series being obtained. Antibacterial activity was examined by determining the minimal inhibitory concentration (MIC) values on Staphylococcus aureus, Escherichia coli, and Candida albicans, three series of derivatives being found to exhibit activity in vitro with significant structure-activity relationship (SAR). Elongating the carbon chain led to the antibacterial activity increased, with quaternary 13-hexanoylpalmatine chloride, quaternary 13-(ω-ethoxycarbonyl)heptylpalmatine chloride, and 8-oxo-13-(N-n-nonyl)aminomethyldihydropalmatine, all of which possess the longest aliphatic carbon chain in the corresponding series of derivatives, showing the MIC values of 62.5, 7.81, and 15.63 µg/ml against S. aureus, respectively. The property of anti-ulcerative colitis (anti-UC) was assessed at the levels of both in vitro and in vivo, with X-box-binding protein 1 (XBP1) being targeted in vitro. Seven compounds were found not only to be hypocytotoxic toward intestinal epithelial cells, but also to exhibit activity of activating the transcription of XBP1 in vitro. Five compounds were found to possess significant dose-effect relationship with EC50 values at a level of 10-7 µM in vitro. 8-Oxo-13-formyldihydropalmatine as an intermediate was found to display significant curative effect on UC in vivo based on the biomarkers of body weight change, colon length change, and calculated values of disease activity index and colon macroscopic damage index of the experimental animals, as well as the examination into the pathological changes of the colon tissue of the modeled animals.
Collapse
Affiliation(s)
- Li Song
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Hai-Jing Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - An-Jun Deng
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Jia Li
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Xiang Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Zhi-Hong Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Zhi-Hui Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Lian-Qiu Wu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| | - Sheng-Qi Wang
- Beijing Institute of Radiation Medicine, Beijing 100850, China.
| | - Hai-Lin Qin
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| |
Collapse
|
24
|
Hershfinkel M. The Zinc Sensing Receptor, ZnR/GPR39, in Health and Disease. Int J Mol Sci 2018; 19:ijms19020439. [PMID: 29389900 PMCID: PMC5855661 DOI: 10.3390/ijms19020439] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 01/24/2018] [Accepted: 01/29/2018] [Indexed: 02/07/2023] Open
Abstract
A distinct G-protein coupled receptor that senses changes in extracellular Zn2+, ZnR/GPR39, was found in cells from tissues in which Zn2+ plays a physiological role. Most prominently, ZnR/GPR39 activity was described in prostate cancer, skin keratinocytes, and colon epithelial cells, where zinc is essential for cell growth, wound closure, and barrier formation. ZnR/GPR39 activity was also described in neurons that are postsynaptic to vesicular Zn2+ release. Activation of ZnR/GPR39 triggers Gαq-dependent signaling and subsequent cellular pathways associated with cell growth and survival. Furthermore, ZnR/GPR39 was shown to regulate the activity of ion transport mechanisms that are essential for the physiological function of epithelial and neuronal cells. Thus, ZnR/GPR39 provides a unique target for therapeutically modifying the actions of zinc in a specific and selective manner.
Collapse
Affiliation(s)
- Michal Hershfinkel
- Department of Physiology and Cell Biology and The Zlotowski Center for Neuroscience, Faculty of Health Sciences, POB 653, Ben-Gurion Ave. Ben-Gurion University of the Negev, Beer Sheva 84105, Israel.
| |
Collapse
|
25
|
Sunuwar L, Medini M, Cohen L, Sekler I, Hershfinkel M. The zinc sensing receptor, ZnR/GPR39, triggers metabotropic calcium signalling in colonocytes and regulates occludin recovery in experimental colitis. Philos Trans R Soc Lond B Biol Sci 2017; 371:rstb.2015.0420. [PMID: 27377730 DOI: 10.1098/rstb.2015.0420] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/03/2016] [Indexed: 12/22/2022] Open
Abstract
Impaired epithelial barrier function is a hallmark of inflammatory bowel diseases, such as colitis, contributing to diarrhoea and perpetuating inflammation. We show that the zinc sensing receptor, ZnR/GPR39, triggers intracellular Ca(2+) signalling in colonocytes thereby inducing occludin expression. Moreover, ZnR/GPR39 is essential for epithelial barrier recovery in the dextran sodium sulfate (DSS) ulcerative colitis model. Loss of ZnR/GPR39 results in increased susceptibility to DSS-induced inflammation, owing to low expression of the tight junction protein occludin and impaired epithelial barrier. Recovery of wild-type (WT) mice from the DSS insult was faster than that of ZnR/GPR39 knockout (KO) mice. Enhanced recovery of the epithelial layer and increased crypt regeneration were observed in WT mice compared with ZnR/GPR39 KO, suggesting that ZnR/GPR39 is promoting epithelial barrier integrity following DSS insult. Indeed, cell proliferation and apical expression of occludin, following the DSS-induced epithelial erosion, were increased in WT tissue but not in ZnR/GPR39 KO tissue. Importantly, survival following DSS treatment was higher in WT mice compared with ZnR/GPR39 KO mice. Our results support a direct role for ZnR/GPR39 in promoting epithelial renewal and barrier function following DSS treatment, thereby affecting the severity of the disease. We suggest ZnR/GPR39 as a novel therapeutic target that can improve epithelial barrier function in colitis.This article is part of the themed issue 'Evolution brings Ca(2+) and ATP together to control life and death'.
Collapse
Affiliation(s)
- Laxmi Sunuwar
- Department of Physiology and Cell Biology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Michal Medini
- Department of Physiology and Cell Biology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Limor Cohen
- Department of Physiology and Cell Biology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Israel Sekler
- Department of Physiology and Cell Biology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Michal Hershfinkel
- Department of Physiology and Cell Biology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| |
Collapse
|
26
|
Liu DY, Gao L, Zhang J, Huo XW, Ni H, Cao L. Anti-inflammatory and Anti-oxidant Effects of Licorice Flavonoids on Ulcerative Colitis in Mouse Model. CHINESE HERBAL MEDICINES 2017. [DOI: 10.1016/s1674-6384(17)60116-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
|
27
|
ZnO nanoparticles act as supportive therapy in DSS-induced ulcerative colitis in mice by maintaining gut homeostasis and activating Nrf2 signaling. Sci Rep 2017; 7:43126. [PMID: 28233796 PMCID: PMC5324050 DOI: 10.1038/srep43126] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 01/19/2017] [Indexed: 12/19/2022] Open
Abstract
Inflammatory bowel diseases (IBD) are widespread inflammatory diseases that cause debilitating health problems including cancer. In this study, we show that ZnO nanoparticle (ZnONP) treatment has markedly dose-dependent effects on the remission of dextran sulfate sodium (DSS)-induced ulcerative colitis in mice. We demonstrate the mechanism involves the antioxidant and anti-inflammatory abilities of ZnONPs to suppress ROS and malondialdehyde (MDA) production; increase GSH level; suppress proinflammatory cytokines IL-1β and TNF-α and myeloperoxidase (MPO). The ZnONP treatment is able to activate the Nrf2 pathway in the cellular antioxidant defense system. The novel finding is that ZnONP combined with mesalazine (5-ASA) can enhance the therapeutic efficacy of 5-ASA in the treatment of DSS-induced colitis. Lastly, we found that ZnONP treatment can restore the changes in special colonic bacteria of DSS-mice while the drug 5-ASA cannot. These results indicate that ZnONPs can act as a medical additive for the therapy of IBD.
Collapse
|
28
|
Duan H, Lü S, Qin H, Gao C, Bai X, Wei Y, Wu X, Liu M, Zhang X, Liu Z. Co-delivery of zinc and 5-aminosalicylic acid from alginate/ N -succinyl-chitosan blend microspheres for synergistic therapy of colitis. Int J Pharm 2017; 516:214-224. [DOI: 10.1016/j.ijpharm.2016.11.036] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 11/03/2016] [Accepted: 11/12/2016] [Indexed: 01/04/2023]
|
29
|
Xie M, Zhang HJ, Deng AJ, Wu LQ, Zhang ZH, Li ZH, Wang WJ, Qin HL. Synthesis and Structure-Activity Relationships of N-Dihydrocoptisine-8-ylidene Aromatic Amines and N-Dihydrocoptisine-8-ylidene Aliphatic Amides as Antiulcerative Colitis Agents Targeting XBP1. JOURNAL OF NATURAL PRODUCTS 2016; 79:775-783. [PMID: 26981782 DOI: 10.1021/acs.jnatprod.5b00807] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this study, natural quaternary coptisine was used as a lead compound to design and synthesize structurally stable and actively potent coptisine analogues. Of the synthesized library, 13 N-dihydrocoptisine-8-ylidene amines/amides were found not only to be noncytotoxic toward intestinal epithelial cells (IECs), but they were also able to activate the transcription of X-box-binding protein 1 (XBP1) targets to varying extents in vitro. Antiulcerative colitis (UC) activity levels were assessed at the in vitro molecular level as well as in vivo in animals using multiple biomarkers as indices. In an in vitro XBP1 transcriptional activity assay, four compounds demonstrated good dose-effect relationships with EC50 values of 0.0708-0.0132 μM. Moreover, two compounds were confirmed to be more potent in vivo than a positive control, demonstrating a curative effect for UC in experimental animals. Thus, the findings of this study suggest that these coptisine analogues are promising candidates for the development of anti-UC drugs.
Collapse
Affiliation(s)
- Meng Xie
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Hai-Jing Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - An-Jun Deng
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Lian-Qiu Wu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Zhi-Hui Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Zhi-Hong Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Wen-Jie Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Hai-Lin Qin
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| |
Collapse
|
30
|
Zhang ZH, Zhang HJ, Deng AJ, Wang B, Li ZH, Liu Y, Wu LQ, Wang WJ, Qin HL. Synthesis and Structure–Activity Relationships of Quaternary Coptisine Derivatives as Potential Anti-ulcerative Colitis Agents. J Med Chem 2015; 58:7557-71. [DOI: 10.1021/acs.jmedchem.5b00964] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Zhi-Hui Zhang
- State Key Laboratory of Bioactive
Substance and Function of Natural Medicines, Institute of Materia
Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Hai-Jing Zhang
- State Key Laboratory of Bioactive
Substance and Function of Natural Medicines, Institute of Materia
Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - An-Jun Deng
- State Key Laboratory of Bioactive
Substance and Function of Natural Medicines, Institute of Materia
Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Bo Wang
- State Key Laboratory of Bioactive
Substance and Function of Natural Medicines, Institute of Materia
Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Zhi-Hong Li
- State Key Laboratory of Bioactive
Substance and Function of Natural Medicines, Institute of Materia
Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Yang Liu
- State Key Laboratory of Bioactive
Substance and Function of Natural Medicines, Institute of Materia
Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Lian-Qiu Wu
- State Key Laboratory of Bioactive
Substance and Function of Natural Medicines, Institute of Materia
Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Wen-Jie Wang
- State Key Laboratory of Bioactive
Substance and Function of Natural Medicines, Institute of Materia
Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Hai-Lin Qin
- State Key Laboratory of Bioactive
Substance and Function of Natural Medicines, Institute of Materia
Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| |
Collapse
|
31
|
Viana-Cardoso KV, Silva MTB, Peixoto-Junior AA, Marinho LS, Matias NS, Soares PMG, Santos AA, Brito GAC, Rola FH, Gondim FDAA. Sensory and inflammatory colonic changes induced by vincristine in distinct rat models of colitis. ACTA ACUST UNITED AC 2015; 34:27-34. [DOI: 10.1111/aap.12020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Revised: 06/15/2012] [Accepted: 09/01/2012] [Indexed: 12/30/2022]
Affiliation(s)
- K. V. Viana-Cardoso
- Curso de Fisioterapia; Universidade Federal do Ceará; 949 Alexandre Baraúna street, Rodolfo Teófilo 60430-160 Fortaleza Ceará Brasil
| | - M. T. B. Silva
- Departamento de Fisiologia e Farmacologia; Faculdade de Medicina; Universidade Federal do Ceará; 1127, Cel. Nunes de Melo street, Rodolfo Teófilo 60430-270 Fortaleza Ceará Brasil
| | - A. A. Peixoto-Junior
- Departamento de Fisiologia e Farmacologia; Faculdade de Medicina; Universidade Federal do Ceará; 1127, Cel. Nunes de Melo street, Rodolfo Teófilo 60430-270 Fortaleza Ceará Brasil
- Hospital Universitário Walter Cantídio; Universidade Federal do Ceará; 1290, Capitão Francisco Pedro street, Rodolfo Teófilo 60430-370 Fortaleza Ceará Brasil
| | - L. S. Marinho
- Departamento de Fisiologia e Farmacologia; Faculdade de Medicina; Universidade Federal do Ceará; 1127, Cel. Nunes de Melo street, Rodolfo Teófilo 60430-270 Fortaleza Ceará Brasil
| | - N. S. Matias
- Departamento de Fisiologia e Farmacologia; Faculdade de Medicina; Universidade Federal do Ceará; 1127, Cel. Nunes de Melo street, Rodolfo Teófilo 60430-270 Fortaleza Ceará Brasil
| | - P. M. G. Soares
- Departamento de Morfologia; Faculdade de Medicina; Universidade Federal do Ceará; Delmiro de Farias street, Rodolfo Teófilo 60416-030 Fortaleza Ceará Brasil
| | - A. A. Santos
- Departamento de Fisiologia e Farmacologia; Faculdade de Medicina; Universidade Federal do Ceará; 1127, Cel. Nunes de Melo street, Rodolfo Teófilo 60430-270 Fortaleza Ceará Brasil
| | - G. A. C. Brito
- Departamento de Morfologia; Faculdade de Medicina; Universidade Federal do Ceará; Delmiro de Farias street, Rodolfo Teófilo 60416-030 Fortaleza Ceará Brasil
| | - F. H. Rola
- Departamento de Fisiologia e Farmacologia; Faculdade de Medicina; Universidade Federal do Ceará; 1127, Cel. Nunes de Melo street, Rodolfo Teófilo 60430-270 Fortaleza Ceará Brasil
| | - F. de A. A. Gondim
- Departamento de Medicina Clínica; Divisão de Neurologia; Faculdade de Medicina; Universidade Federal do Ceará; 1608, Prof. Costa Mendstreet 4th Floor, Rodolfo Teófilo 60430-140 Fortaleza Ceará Brasil
| |
Collapse
|
32
|
Skrovanek S, DiGuilio K, Bailey R, Huntington W, Urbas R, Mayilvaganan B, Mercogliano G, Mullin JM. Zinc and gastrointestinal disease. World J Gastrointest Pathophysiol 2014; 5:496-513. [PMID: 25400994 PMCID: PMC4231515 DOI: 10.4291/wjgp.v5.i4.496] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Revised: 09/18/2014] [Accepted: 10/01/2014] [Indexed: 02/06/2023] Open
Abstract
This review is a current summary of the role that both zinc deficiency and zinc supplementation can play in the etiology and therapy of a wide range of gastrointestinal diseases. The recent literature describing zinc action on gastrointestinal epithelial tight junctions and epithelial barrier function is described. Zinc enhancement of gastrointestinal epithelial barrier function may figure prominently in its potential therapeutic action in several gastrointestinal diseases.
Collapse
|
33
|
Blood zinc levels in children hospitalized with pneumonia: A cross sectional study. EGYPTIAN JOURNAL OF CHEST DISEASES AND TUBERCULOSIS 2013. [DOI: 10.1016/j.ejcdt.2013.09.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
34
|
Das RR, Singh M, Shafiq N. Short-term therapeutic role of zinc in children < 5 years of age hospitalised for severe acute lower respiratory tract infection. Paediatr Respir Rev 2012; 13:184-91. [PMID: 22726876 DOI: 10.1016/j.prrv.2012.01.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2011] [Revised: 01/08/2012] [Accepted: 01/21/2012] [Indexed: 10/28/2022]
Abstract
In contrast to its 'preventive role', no consensus has evolved for the therapeutic role of zinc in pneumonia in children. We conducted a meta-analysis to find the therapeutic role of zinc in children <5 years of age hospitalised for severe acute lower respiratory tract infection (ALRTI). A comprehensive search was performed of the major electronic databases. Randomised controlled trials (RCTs) comparing treatment with zinc versus placebo were included. Seven RCTs (1066 subjects) conducted in developing countries were eligible for inclusion. There was no significant difference between the two groups regarding the time of resolution of severe illness (standardised mean difference (SMD) -0.15 (95% confidence interval (CI) -0.5, 0.2; p=0.4)) and duration of hospitalisation (SMD -0.29 (95% CI -0.68, -0.09; p=0.13)). No significant difference between the two groups was also noted for other parameters (duration of resolution of hypoxia, chest indrawing or tachypnoea, change of antibiotics and treatment failure rates). The adverse events were not significant. To conclude, present available data do not support the efficacy of zinc in treatment of severe ALRTI.
Collapse
Affiliation(s)
- Rashmi Ranjan Das
- Department of Pediatrics, All India Institute of Medical Sciences (AIIMS), New Delhi-110029, India.
| | | | | |
Collapse
|
35
|
He HH, Shen H, Zhu XX, Gu PQ, Liu YJ, Zhu L, Zheng K. Radix cynanchi paniculati ameliorates 2,4,6-trinitrobenzenesulfonic acid-induced colitis in rats. Shijie Huaren Xiaohua Zazhi 2012; 20:2237-2242. [DOI: 10.11569/wcjd.v20.i24.2237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the effects of radix cynanchi paniculati in the treatment of 2,4,6-trinitrobenzenesulfonic acid (TNBS)-induced colitis in rats.
METHODS: Forty male Sprague-Dawley (SD) rats were randomly divided into four groups: control group, model group, radix cynanchi paniculati group, and balsalazide group. Experimental colitis was induced in rats by intragastric administration of TNBS. Rats in the radix cynanchi paniculati and balsalazide groups were treated by gavage with radix cynanchi paniculati (4 g/kg) or balsalazide (1 g/kg) for ten consecutive days following TNBS administration. After treatment, general status, macroscopic lesions and histological injuries were observed, and serum levels of cytokines, including interleukin (IL)-1β, tumor necrosis factor (TNF)-α and lL-10 were determined by enzyme-linked immunosorbant assay (ELISA).
RESULTS: Body weight was improved in rats of the two treatment groups, but there was no statistical difference in body weight between the treatment groups and model group. Disease activity index (DAI) was significantly lower in the two treatment groups than in the model group (0.70 ± 1.06, 0.67 ± 0.71 vs 2.38 ± 1.51, both P < 0.05). Both radix cynanchi paniculati and balsalazide could improve colonic macroscopic morphology and pathohistology compared to the model group (1.05 ± 0.83, 1.06 ± 0.85 vs 2.94 ± 0.94; 1.65 ± 1.67, 2.00 ± 1.80 vs 6.00 ± 1.67, all P < 0.01). Serum levels of TNF-α and IL-1β were significantly lower in the radix cynanchi paniculati group than in the model group (both P < 0.01), but there was no statistical difference in IL-10 level between the two groups. Serum levels of TNF-α, IL-1β and IL-10 were significantly lower in the balsalazide group than in the model group (all P < 0.01).
CONCLUSION: Radix cynanchi paniculati could effectively ameliorate TNBS-induced colitis in rats possibly via mechanisms associated with altering the levels of cytokines.
Collapse
|
36
|
Cohen L, Asraf H, Sekler I, Hershfinkel M. Extracellular pH regulates zinc signaling via an Asp residue of the zinc-sensing receptor (ZnR/GPR39). J Biol Chem 2012; 287:33339-50. [PMID: 22879599 DOI: 10.1074/jbc.m112.372441] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Zinc activates a specific Zn(2+)-sensing receptor, ZnR/GPR39, and thereby triggers cellular signaling leading to epithelial cell proliferation and survival. Epithelial cells that express ZnR, particularly colonocytes, face frequent changes in extracellular pH that are of physiological and pathological implication. Here we show that the ZnR/GPR39-dependent Ca(2+) responses in HT29 colonocytes were maximal at pH 7.4 but were reduced by about 50% at pH 7.7 and by about 62% at pH 7.1 and were completely abolished at pH 6.5. Intracellular acidification did not attenuate ZnR/GPR39 activity, indicating that the pH sensor of this protein is located on an extracellular domain. ZnR/GPR39-dependent activation of extracellular-regulated kinase (ERK)1/2 or AKT pathways was abolished at acidic extracellular pH of 6.5. A similar inhibitory effect was monitored for the ZnR/GPR39-dependent up-regulation of Na(+)/H(+) exchange activity at pH 6.5. Focusing on residues putatively facing the extracellular domain, we sought to identify the pH sensor of ZnR/GPR39. Replacing the histidine residues forming the Zn(2+) binding site, His(17) or His(19), or other extracellular-facing histidines to alanine residues did not abolish the pH dependence of ZnR/GPR39. In contrast, replacing Asp(313) with alanine resulted in similar Ca(2+) responses triggered by ZnR/GPR39 at pH 7.4 or 6.5. This mutant also showed similar activation of ERK1/2 and AKT pathways, and ZnR-dependent up-regulation of Na(+)/H(+) exchange at pH 7.4 and pH 6.5. Substitution of Asp(313) to His or Glu residues restored pH sensitivity of the receptor. This indicates that Asp(313), which was shown to modulate Zn(2+) binding, is an essential residue of the pH sensor of GPR39. In conclusion, ZnR/GPR39 is tuned to sense physiologically relevant changes in extracellular pH that thus regulate ZnR-dependent signaling and ion transport activity.
Collapse
Affiliation(s)
- Limor Cohen
- Department of Morphology, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer-Sheva 84105, Israel
| | | | | | | |
Collapse
|
37
|
Sartori G, Pesarico AP, Pinton S, Dobrachinski F, Roman SS, Pauletto F, Rodrigues LC, Prigol M. Protective effect of brown Brazilian propolis against acute vaginal lesions caused by herpes simplex virus type 2 in mice: involvement of antioxidant and anti-inflammatory mechanisms. Cell Biochem Funct 2011; 30:1-10. [PMID: 22025285 DOI: 10.1002/cbf.1810] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Revised: 07/25/2011] [Accepted: 08/24/2011] [Indexed: 01/10/2023]
Abstract
Propolis has been highlighted for its antioxidant, anti-inflammatory and antiviral properties. The purpose of this study was to investigate if brown Brazilian hydroalcoholic propolis extract (HPE) protects against vaginal lesions caused by herpes simplex virus type 2 (HSV-2) in female BALB/c mice. The treatment was divided in 5 days of pre-treatment with HPE [50 mg · kg(-1), once a day, intragastric (i.g.)], HSV-2 infection [10 µl of a solution 1 × 10(2) plaque-forming unit (PFU · ml(-1) HSV-2), intravaginal inoculation at day 6] and post-treatment with HPE (50 mg · kg(-1)) for 5 days more. At day 11, the animals were killed, and the in vivo analysis (score of lesions) and ex vivo analysis [haematological and histological evaluation; superoxide dismutase (SOD), catalase (CAT) and myeloperoxidase (MPO) activities; reactive species (RS), tyrosine nitration levels, non-protein thiols (NPSH) and ascorbic acid (AA) levels] were carried out. HPE treatment reduced extravaginal lesions and the histological damage caused by HSV-2 infection in vaginal tissues of animals. HPE was able to decrease RS, tyrosine nitration, AA levels and MPO activity. Also, it protected against the inhibition of CAT activity in vaginal tissues of mice. HPE promoted protective effect on HSV-2 infected animals by acting on inflammatory and oxidative processes, and this effect probably is caused by its antioxidant and anti-inflammatory properties.
Collapse
Affiliation(s)
- Gláubia Sartori
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | | | | | | | | | | | | | | |
Collapse
|
38
|
Barollo M, Medici V, D’Incà R, Banerjee A, Ingravallo G, Scarpa M, Patak S, Ruffolo C, Cardin R, Sturniolo GC. Antioxidative potential of a combined therapy of anti TNFα and Zn acetate in experimental colitis. World J Gastroenterol 2011; 17:4099-103. [PMID: 22039323 PMCID: PMC3203360 DOI: 10.3748/wjg.v17.i36.4099] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Revised: 02/19/2011] [Accepted: 02/26/2011] [Indexed: 02/06/2023] Open
Abstract
AIM: To evaluate whether combination therapy with anti-tumour necrosis factor α (TNFα) antibody and Zn acetate is beneficial in dextran sodium sulphate (DSS) colitis.
METHODS: Colitis was induced in CD1-Swiss mice with 5% DSS for 7 d. The experimental mice were then randomised into the following subgroups: standard diet + DSS treated (induced colitis group); standard diet + DSS + subcutaneous 25 μg anti-TNFα treated group; Zn acetate treated group + DSS + subcutaneous 25 μg anti-TNFα; standard diet + DSS + subcutaneous 6.25 μg anti-TNFα treated group and Zn acetate treated group + DSS + subcutaneous 6.25 μg anti-TNFα. Each group of mice was matched with a similar group of sham control animals. Macroscopic and histological features were scored blindly. Homogenates of the colonic mucosa were assessed for myeloperoxidase activity as a biochemical marker of inflammation and DNA adducts (8OH-dG) as a measure of oxidative damage.
RESULTS: DSS produced submucosal erosions, ulcers, inflammatory cell infiltration and cryptic abscesses which were reduced in both groups of mice receiving either anti-TNFα alone or combined with zinc. The effect was more pronounced in the latter group (vs Zn diet, P < 0.02). Myeloperoxidase activity (vs controls, P < 0.02) and DNA adducts, greatly elevated in the DSS fed colitis group (vs controls, P < 0.05), were significantly reduced in the treated groups, with a more remarkable effect in the group receiving combined therapy (vs standard diet, P < 0.04).
CONCLUSION: DSS induces colonic inflammation which is modulated by the administration of anti-TNFα. Combining anti-TNFα with Zn acetate offers marginal benefit in colitis severity.
Collapse
|
39
|
Iwaya H, Kashiwaya M, Shinoki A, Lee JS, Hayashi K, Hara H, Ishizuka S. Marginal zinc deficiency exacerbates experimental colitis induced by dextran sulfate sodium in rats. J Nutr 2011; 141:1077-82. [PMID: 21525261 DOI: 10.3945/jn.111.138180] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
We investigated the impact of Zn status on the maintenance of mucosal homeostasis. Rats were fed diets containing different amounts of Zn (30, 10, 5, <1 mg Zn/kg diet) for 21 d. Serum Zn concentrations were lower in rats fed marginally Zn-deficient (MZD; 5 mg Zn/kg diet) and severely Zn-deficient (<1 mg/kg) diets but not in those fed the marginally Zn-adequate diet (10 mg/kg) or the Zn-adequate (ZA; 30 mg/kg) group (P < 0.05). However, organ weights, colonic epithelial cell proliferation, and crypt fission did not differ between the MZD and ZA groups. We then evaluated whether MZD modulated dextran sulfate sodium (DSS)-induced colonic inflammation by administering 2% DSS to the MZD and ZA groups for 7 d. Myeloperoxidase activity and TNFα production increased in response to DSS in the MZD group (P < 0.03). Colonic permeability in the 2 groups did not differ after DSS administration. In a culture experiment using isolated mesenteric leukocytes, TNFα production was higher (P < 0.05) and TNF receptor type I (TNFR1) expression was detected in culture medium containing 20 and 30 μmol/L of Zn compared with culture medium lacking Zn supplementation. These results suggest that MZD exacerbated colitis by modulating the immune response through the impairment of TNFα production and TNFR1 expression rather than through the impairment of epithelial barrier function.
Collapse
Affiliation(s)
- Hitoshi Iwaya
- Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589 Japan
| | | | | | | | | | | | | |
Collapse
|
40
|
Ko JK, Leung CC. Ginger extract and polaprezinc exert gastroprotective actions by anti-oxidant and growth factor modulating effects in rats. J Gastroenterol Hepatol 2010; 25:1861-8. [PMID: 21091998 DOI: 10.1111/j.1440-1746.2010.06347.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIM Contemporary medications used in the treatment of gastric ulcers involve the use of novel mucosal protective drugs. The present study aimed to investigate the gastroprotective effect of ginger extract and polaprezinc in a rat model of acetic acid-induced gastric ulcer. METHODS 'Kissing' ulcers were induced in male Sprague-Dawley rats by using 60% acetic acid. Rhizoma Zingiber officinale (ginger) extract (1.5-5 g/kg) or polaprezinc (30 and 60 mg/kg) was orally given to the animals once daily for three consecutive days after ulcer induction. All animals were killed on day 5 by an overdose of ketamine. RESULTS Both ginger extract and polaprezinc significantly reduce the gastric ulcer area in a dose-dependent manner, with concomitant attenuation of the elevated activities of xanthine oxidase and myeloperoxidase, as well as malondialdehyde level in the ulcerated mucosa. Nevertheless, only polaprezinc could restore the mucosal glutathione level. Polaprezinc also causes the overexpression of basic fibroblast growth factor, vascular endothelial growth factor and ornithine decarboxylase, whereas ginger extract only increases the expression of the two growth factors in the gastric mucosa. Furthermore, polaprezinc could consistently downregulate the protein expression of tumor necrosis factor (TNF)-α, interleukin-1β, macrophage inflammatory protein-2 and cytokine-induced neutrophil chemoattractant-2α that have been activated in the ulcerated tissues, whereas ginger extract mainly inhibits the expression of the chemokines and to some extent TNF-α. CONCLUSION Ginger extract and polaprezinc both show anti-oxidation that consequently alleviates gastric mucosal damage and promotes ulcer healing, which together serve as effective mucosal protective agents.
Collapse
Affiliation(s)
- Joshua K Ko
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China.
| | | |
Collapse
|
41
|
Talukder P, Satho T, Irie K, Sharmin T, Hamady D, Nakashima Y, Kashige N, Miake F. Trace metal zinc stimulates secretion of antimicrobial peptide LL-37 from Caco-2 cells through ERK and p38 MAP kinase. Int Immunopharmacol 2010; 11:141-4. [PMID: 21035435 DOI: 10.1016/j.intimp.2010.10.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2010] [Revised: 10/08/2010] [Accepted: 10/13/2010] [Indexed: 01/24/2023]
Abstract
Infectious diseases, especially, diarrhoea, are responsible for high mortality rates in developing countries. Zinc supplementation shows beneficial effects against such diseases, but the mechanism of action is poorly understood. Here, we examined whether zinc supplementation can improve mucosal innate immunity through induction of antimicrobial peptide secretion from intestinal epithelial cells. Zinc was found to induce secretion of the antimicrobial peptide LL-37 from Caco-2 cell in a dose (0.63±0.09ng/mL and 0.54±0.06ng/mL at 20μM and 50μM respectively) and time dependent manner. LL-37 secretion increased immediately (1h) after exposure to 20μM Zn (0.29±0.04ng/mL), which continued up to 48h of exposure (0.58±0.05ng/mL). Zinc induces the phosphorylation of ERK and p38 MAP kinase and regulates LL-37 secretion through these MAP kinases. Zinc supplementation may have beneficial effects on mucosal innate immunity via secretion of LL-37.
Collapse
Affiliation(s)
- Parimal Talukder
- Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1, Nanakuma, Jonan- ku, Fukuoka 814-0180, Japan
| | | | | | | | | | | | | | | |
Collapse
|
42
|
Evidence for a potential role of metallothioneins in inflammatory bowel diseases. Mediators Inflamm 2009; 2009:729172. [PMID: 19727408 PMCID: PMC2734936 DOI: 10.1155/2009/729172] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2009] [Accepted: 07/03/2009] [Indexed: 01/23/2023] Open
Abstract
Inflammatory bowel diseases (IBDs) are a group of chronic, relapsing, immune-mediated disorders of the intestine, including Crohn's disease and ulcerative colitis. Recent studies underscore the importance of the damaged epithelial barrier and the dysregulated innate immune system in their pathogenesis. Metallothioneins (MTs) are a family of small proteins with a high and conserved cysteine content that are rapidly upregulated in response to an inflammatory stimulus. Herein, we review the current knowledge regarding the expression and potential role of MTs in IBD. MTs exert a central position in zinc homeostasis, modulate the activation of the transcription factor nuclear factor (NF)-kappaB, and serve as antioxidants. In addition, MTs could be involved in IBD through their antiapoptotic effects or through specific immunomodulating extracellular effects. Reports on MT expression in IBD are contradictory but clearly demonstrate a deviant MT expression supporting the idea that these aberrations in IBD require further clarification.
Collapse
|
43
|
He WC, Li J, Zhou R, Tang PF. Effect of 5-ASA on serum level of IL-8 and PMN apoptosis in TNBS-induced rat colitis. Shijie Huaren Xiaohua Zazhi 2009; 17:1297-1302. [DOI: 10.11569/wcjd.v17.i13.1297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the therapeutic mechanism of 5-ASA in inflammatory bowel disease (IBD) through observation of its effects on serum level of IL-8 and PMN apoptosis in trinitrobenzene sulphonic acid (TNBS)-induced rat colitis.
METHODS: Thirty female Sprague-Dawley (SD) rats were randomly divided into three groups, namely, normal control group (group A) and colitis groups (group B and C). Then group B was given 1 mL normal saline while group C was given 5-ASA (200 mg/kg) for 7 d. All of the animals in three groups were anesthetized, and the macroscopic and histological changes of the colon were evaluated and scored. Expression of serum IL-8 was detected using ELISA, and the apoptosis of PMN was examined by flow cytometry.
RESULTS: Compared with group A, macroscopic and histological scores and the serum level of IL-8 were significantly higher in group B (2.74 ± 0.437 vs 0.27 ± 0.346, 5.10 ± 1.101 vs 0.50 ± 0.527, 4.70 ± 0.949 vs 0.44 ± 0.458, 720.97 ± 71.718 ng/L vs 129.88 ± 18.399 ng/L, all P < 0.01), but they were markedly decreased in group C than in group B (1.34 ± 0.385 vs 2.74 ± 0.437, 1.70 ± 0.483 vs 5.10 ± 1.101, 1.50 ± 0.850 vs 4.70 ± 0.949, 392.84 ± 43.628 ng/L vs 720.97 ± 71.718 ng/L, all P < 0.01). Compared with group A, PMN apoptosis rate was notably lower in group B (30.54% ± 4.036% vs 56.13% ± 5.188%, P < 0.01), but it was markedly increased in group C (48.89% ± 4.522%) than in group B (P < 0.01).
CONCLUSION: There is notably therapeutic effect in topical enema with 5-ASA for IBD, which may be related to reduced serum level of IL-8 and induced PMN apoptosis.
Collapse
|
44
|
Al-Gindan Y, Shawarby M, Noto A, Taylor CG. Intestinal inflammation in rats induces metallothionein in colonic submucosa. J Clin Biochem Nutr 2009; 44:131-41. [PMID: 19308267 PMCID: PMC2654469 DOI: 10.3164/jcbn.08-217] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2008] [Accepted: 09/30/2008] [Indexed: 11/22/2022] Open
Abstract
The aim of the current study was to determine if induction of metallothionein (MT) via acute or chronic dietary zinc supplementation attenuates intestinal inflammation, and to investigate the relationship with site-specific intestinal MT determined by immunolocalization. Growing rats were assigned to zinc-deficient (ZD), acute zinc-treated (ZT), pair-fed, control or chronic Zn-supplemented (ZS) groups. Half the rats in each dietary group received 5% dextran sulphate sodium (DSS) in their drinking water for 4 days. DSS treatment produced acute intestinal inflammation in the colon only, however, dietary zinc deficiency, acute zinc treatment or chronic zinc supplementation did not alter the severity of ulceration. Serum zinc concentrations were attenuated in the DSS-challenged ZT and ZS groups suggesting that zinc was being utilized in some capacity in response to inflammation. DSS-challenge induced MT immunostaining in the colonic submucosa, however, MT was not associated with histological improvements in the present study. The site-specific MT induction in colonic submucosa during intestinal inflammation requires further clarification as a component of the host defense.
Collapse
Affiliation(s)
- Yasmin Al-Gindan
- Department of Human Nutritional Sciences, University of Manitoba, Winnipeg, Manitoba, MB R3T 2N2, Canada
| | | | | | | |
Collapse
|
45
|
Hofseth LJ. Nitric oxide as a target of complementary and alternative medicines to prevent and treat inflammation and cancer. Cancer Lett 2008; 268:10-30. [PMID: 18440130 PMCID: PMC2680023 DOI: 10.1016/j.canlet.2008.03.024] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2008] [Revised: 03/14/2008] [Accepted: 03/19/2008] [Indexed: 02/07/2023]
Abstract
Nitric oxide (NO) and associated reactive nitrogen species (RNS) are involved in many physiological functions. There has been an ongoing debate to whether RNS can inhibit or perpetuate chronic inflammation and associated carcinogenesis. Although the final outcome depends on the genetic make-up of its target, the surrounding microenvironment, the activity and localization of nitric oxide synthase (NOS) isoforms, and overall levels of NO/RNS, evidence is accumulating that in general, RNS drive inflammation and cancers associated with inflammation. To this end, many complementary and alternative medicines (CAMs) that work in chemoprevention associated with chronic inflammation, are inhibitors of excessive NO observed in inflammatory conditions. Here, we review recent literature outlining a role of NO/RNS in chronic inflammation and cancer, and point toward NO as one of several targets for the success of CAMs in treating chronic inflammation and cancer associated with this inflammation.
Collapse
Affiliation(s)
- Lorne J Hofseth
- Department of Pharmaceutical and Biomedical Sciences, South Carolina College of Pharmacy, University of South Carolina, 770 Sumter Street, Coker Life Sciences, Room 513C, Columbia, SC 29208, USA.
| |
Collapse
|
46
|
Hershfinkel M, Silverman WF, Sekler I. The zinc sensing receptor, a link between zinc and cell signaling. Mol Med 2007; 13:331-6. [PMID: 17728842 PMCID: PMC1952663 DOI: 10.2119/2006-00038.hershfinkel] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2007] [Accepted: 06/12/2007] [Indexed: 11/06/2022] Open
Abstract
Zinc is essential for cell growth. For many years it has been used to treat various epithelial disorders, ranging from wound healing to diarrhea and ulcerative colon disease. The physiological/molecular mechanisms linking zinc and cell growth, however, are not well understood. In recent years, Zn2+ has emerged as an important signaling molecule, activating intracellular pathways and regulating cell fate. We have functionally identified an extracellular zinc sensing receptor, called zinc sensing receptor (ZnR), that is specifically activated by extracellular Zn2+ at physiological concentrations. The putative ZnR is pharmacologically coupled to a Gq-protein which triggers release of Ca2+ from intracellular stores via the Inositol 1,4,5-trisphosphate (IP3) pathway. This, in turn results in downstream signaling via the MAP and phosphatidylinositol 3-kinase (PI3 kinase) pathways that are linked to cell proliferation. In some cell types, e.g., colonocytes, ZnR activity also upregulates Na+/H+ exchange, mediated by Na+/H+ exchanger isoform 1 (NHE1), which is involved in cellular ion homeostasis in addition to cell proliferation. Our overall hypothesis, as discussed below, is that a ZnR, found in organs where dynamic zinc homeostasis is observed, enables extracellular Zn2+ to trigger intracellular signaling pathways regulating key cell functions. These include cell proliferation and survival, vectorial ion transport and hormone secretion. Finally, we suggest that ZnR activity found in colonocytes is well positioned to attenuate erosion of the epithelial lining of the colon, thereby preventing or ameliorating diarrhea, but, by signaling through the same pathways, a ZnR may enhance tumor progression in neoplastic disease.
Collapse
Affiliation(s)
- Michal Hershfinkel
- Department of Morphology, Ben Gurion University of the Negev, POB 653, Beer-Sheva, Israel.
| | | | | |
Collapse
|
47
|
Bhol KC, Schechter PJ. Effects of nanocrystalline silver (NPI 32101) in a rat model of ulcerative colitis. Dig Dis Sci 2007; 52:2732-42. [PMID: 17436088 DOI: 10.1007/s10620-006-9738-4] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2006] [Accepted: 12/15/2006] [Indexed: 02/03/2023]
Abstract
Nanocrystalline silver (NPI 32101) has been demonstrated to have antimicrobial and anti-inflammatory properties. The purpose of this study was to assess the effect of NPI 32101 in a rat model of ulcerative colitis and the possible mechanisms of action of the effects observed. NPI 32101, 4 mg/kg intracolonically or 40 mg/kg orally, significantly reduced colonic inflammation compared to the placebo and no-treatment groups. Sulfasalazine (100 mg/kg), either intracolonically or orally, also reduced colonic inflammation. NPI 32101 significantly suppressed the expression of matrix metalloproteinase (MMP)-9, tumor necrosis factor (TNF)-alpha, interleukin (IL)-1beta, and IL-12, whereas sulfasalazine suppressed MMP-9, IL-1beta, and TNF-alpha, but not IL-12, compared to placebo. MMP-9 activity was reduced by NPI 32101 and sulfasalazine. NPI 32101 administered intracolonically or orally decreases ulcerative colitis in a rat model and is as effective as sulfasalazine. NPI 32101 treatment suppresses the expression and activity of MMP-9 and the expression of TNF-alpha, IL-1beta, and IL-12, mechanisms by which NPI 32101 may exert its anti-inflammatory effects. NPI 32101 may have therapeutic potential for treatment of ulcerative colitis.
Collapse
Affiliation(s)
- Kailash C Bhol
- NUCRYST Pharmaceuticals Inc., 50 Audubon Road, Wakefield, MA 01880, USA.
| | | |
Collapse
|
48
|
Tran CD, Ball JM, Sundar S, Coyle P, Howarth GS. The role of zinc and metallothionein in the dextran sulfate sodium-induced colitis mouse model. Dig Dis Sci 2007; 52:2113-21. [PMID: 17410436 DOI: 10.1007/s10620-007-9765-9] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2006] [Accepted: 01/04/2007] [Indexed: 12/15/2022]
Abstract
Zinc (Zn) and its binding protein metallothionein (MT) have been proposed to suppress the disease activity in ulcerative colitis. To determine the role of Zn and MT in the dextran sulfate sodium (DSS)-induced model of colitis in mice, a DSS dose-response study was conducted in male C57BL/6 wild-type (MT+/+) and MT-null (MT-/-) mice by supplementing 2%, 3%, and 4% DSS in the drinking water for 6 days. In the intervention study, colitis was induced with 2% DSS, Zn (24 mg/ml as ZnO) was gavaged (0.1 ml) daily, concurrent with DSS administration, and the disease activity index (DAI) was scored daily. Histology, MT levels, and myeloperoxidase (MPO) activity were determined. DAI was increased (P<0.05) by 16% and 21% with 3% and 4% concentrations of DSS, respectively, compared to 2%, evident after 5 days of DSS administration. MPO activity was increased in MT+/+ compared to MT-/- mice and those receiving DSS. Zn administration had a 50% (P<0.05) lower DAI compared to DSS alone. Zn partially prevented the distal colon of MT+/+ by 47% from DSS-induced damage compared to MT-/- mice. MT did not prevent DSS-induced colitis and Zn was partially effective in amelioration of DSS-induced colitis.
Collapse
Affiliation(s)
- C D Tran
- Gastroenterology Unit, Children, Youth and Women's Health Service, 72 King William Road, North Adelaide, SA 5006, Australia.
| | | | | | | | | |
Collapse
|
49
|
Ohkawara T, Takeda H, Kato K, Miyashita K, Kato M, Iwanaga T, Asaka M. Polaprezinc (N-(3-aminopropionyl)-L-histidinato zinc) ameliorates dextran sulfate sodium-induced colitis in mice. Scand J Gastroenterol 2005; 40:1321-7. [PMID: 16334442 DOI: 10.1080/00365520510023530] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE Polaprezinc (N-(3-Aminopropionyl)-L-histidinato zinc), an anti-ulcer drug, has been reported to have an anti-inflammatory action in several inflammatory diseases. The aim of this study was to investigate the effect of polaprezinc on dextran sulfate (DSS)-induced colitis in mice. MATERIAL AND METHODS Mice with colitis induced by DSS were intrarectally treated with polaprezinc (15 mg/kg) or zinc sulfate (7.5 mg/kg) every day after the administration of DSS for 7 days. Disease activity index (DAI) and histological tissue damage were assessed. Levels of myeloperoxidase (MPO) activity, tumor necrosis factor (TNF)-alpha and interferon (IFN)-gamma in the colon were measured. Expression of heat shock protein (HSP) 25 and HSP70 in the colon was analyzed by Western blot analysis. RESULTS DAI and histological scores were remarkably reduced in polaprezinc-treated mice with DSS-induced colitis. Polaprezinc suppressed the increase of MPO activity and the production of TNF-alpha and IFN-gamma in the colon tissues of mice with DSS-induced colitis. Expression of HSP25 and HSP70 was remarkably up-regulated in the colon tissues of polaprezinc-treated mice during DSS treatment. CONCLUSIONS Polaprezinc suppresses DSS-induced colitis in mice, partly through inhibition of production of pro-inflammatory cytokine, suppression of neutrophils accumulation and cytoprotection by overexpression of HSPs. Polaprezinc could be useful in the treatment of inflammatory bowel diseases.
Collapse
Affiliation(s)
- Tatsuya Ohkawara
- Department of Gastroenterology and Hematology, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
| | | | | | | | | | | | | |
Collapse
|
50
|
Brooks WA, Yunus M, Santosham M, Wahed MA, Nahar K, Yeasmin S, Black RE. Zinc for severe pneumonia in very young children: double-blind placebo-controlled trial. Lancet 2004; 363:1683-8. [PMID: 15158629 DOI: 10.1016/s0140-6736(04)16252-1] [Citation(s) in RCA: 137] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BACKGROUND Pneumonia is a leading cause of morbidity and mortality in young children. Early reversal of severity signs--chest indrawing, hypoxia, and tachypnoea--improves outcome. We postulated that zinc, an acute phase reactant, would shorten duration of severe pneumonia and time in hospital. METHODS In a double-blind placebo-controlled clinical trial in Matlab Hospital, Bangladesh, 270 children aged 2-23 months were randomised to receive elemental zinc (20 mg per day) or placebo, plus the hospital's standard antimicrobial management, until discharge. The outcomes were time to cessation of severe pneumonia (no chest indrawing, respiratory rate 50 per min or less, oxygen saturation at least 95% on room air) and discharge from hospital. Discharge was allowed when respiratory rate was 40 per minute or less for 24 consecutive hours while patients were maintained only on oral antibiotics. FINDINGS The group receiving zinc had reduced duration of severe pneumonia (relative hazard [RH]=0.70, 95% CI 0.51-0.98), including duration of chest indrawing (0.80, 0.61-1.05), respiratory rate more than 50 per min (0.74, 0.57-0.98), and hypoxia (0.79, 0.61-1.04), and overall hospital duration (0.75, 0.57-0.99). The mean reduction is equivalent to 1 hospital day for both severe pneumonia and time in hospital. All effects were greater when children with wheezing were omitted from the analysis. INTERPRETATION Adjuvant treatment with 20 mg zinc per day accelerates recovery from severe pneumonia in children, and could help reduce antimicrobial resistance by decreasing multiple antibiotic exposures, and lessen complications and deaths where second line drugs are unavailable.
Collapse
Affiliation(s)
- W Abdullah Brooks
- Centre for Health and Population Research, International Centre for Diarrhoeal Disease Research, Bangladesh, GPO Box 128 Mohakhali, Dhaka 1000, Bangladesh.
| | | | | | | | | | | | | |
Collapse
|