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He L, Deng T, Huang Y, Yang W, Yang J, Song G. Association between 23 drugs and inflammatory bowel disease: a two-sample Mendelian randomization study. Front Med (Lausanne) 2024; 11:1371362. [PMID: 38835788 PMCID: PMC11149542 DOI: 10.3389/fmed.2024.1371362] [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: 01/16/2024] [Accepted: 05/07/2024] [Indexed: 06/06/2024] Open
Abstract
Background Inflammatory bowel disease (IBD) is a group of diseases characterized by chronic and recurrent inflammation of the gastrointestinal tract. The etiology of IBD remains multifaceted and poorly understood, resulting in limited treatment options that primarily target disease induction and remission maintenance. Thus, the exploration of novel therapeutic options for IBD among existing medications is advantageous. Mendelian randomization analysis (MR) serves as a valuable tool in investigating the relationship between drugs and diseases. In this study, MR analysis was employed to investigate the potential causal relationship between 23 approved drugs for the treatment of various diseases and IBD. Method We performed a two-sample MR analysis using publicly available genome-wide association study (GWAS) statistics. The inverse variance weighting (IVW) method was used as the main analysis method, supplemented by the remaining four methods (weighted median, MR Egger regression, simple and weighted models), and Meta-analysis was performed to expand the sample size to obtain a more reliable composite causal effect. Finally, Cochran's Q statistic and the MR-Egger test for directed pleiotropy were applied to determine whether significant heterogeneity or directed pleiotropy existed. Results In the main MR analysis (IVW), drugs with a negative causal association with the risk of IBD were immunosuppressant {OR (95% CI) = 0.7389 [0.6311-0.8651], p = 0.0046} and diabetes drugs {OR (95% CI) = 0.9266 [0.8876-0.9674], p = 0.0058}. A positive causal association with the risk of IBD was found for salicylic acid and derivatives {OR (95% CI) = 1.2737 [1.0778-1.5053], p = 0.0345}. Negative causal associations with UC risk were identified for immunosuppressants {OR (95% CI) = 0.6660 [0.5133-0.8640], p = 0.0169} and diabetes medications {OR (95% CI) = 0.9020 [0.8508-0.9551], p = 0.0046}; positive causal associations with UC risk were found for β-receptor blockers {OR (95% CI) = 1.1893 [1.0823-1.3070], p = 0.0046}. A negative causal association with the risk of CD was found for immunosuppressants {OR (95% CI) = 0.6957 [0.5803-0.8341], p = 0.0023}. There was no statistically significant association between the remaining 19 drugs and IBD and subtypes. Conclusion This MR study provides evidence suggesting that immunosuppressants have a mitigating effect on the risk of IBD and demonstrate consistent efficacy in subtypes of ulcerative colitis (UC) and Crohn's disease (CD). Additionally, diabetes medications show potential in reducing the risk of IBD, particularly in cases of UC, while β-blockers may elevate the risk of UC. Conversely, salicylic acid and its derivatives may increase the risk of IBD, although this effect is not consistently observed in the subtypes of the disease. These findings offer new insights into the prevention and management of IBD.
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Affiliation(s)
- Lei He
- Department of Gastroenterology, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Tuo Deng
- Department of Gastroenterology, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Yurong Huang
- Department of Gastroenterology, Liupanshui People's Hospital, Liupanshui, Guizhou, China
| | - Wangliu Yang
- Department of Gastroenterology, Liupanshui People's Hospital, Liupanshui, Guizhou, China
| | - Jie Yang
- Department of Gastroenterology, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Gengqing Song
- Department of Gastroenterology and Hepatology, Metrohealth Medical Center, Case Western Reserve University, Cleveland, OH, United States
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Liu H, Feng X, Wang D, Liu L, Liu Y, Liu B, Zhu L, Zhang C, Yang W. Altered metabolome and microbiome features provide clues in predicting recurrence of ulcerative colitis. J Pharm Biomed Anal 2024; 239:115864. [PMID: 38029703 DOI: 10.1016/j.jpba.2023.115864] [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: 08/15/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 12/01/2023]
Abstract
PURPOSE Many studies have shown that the imbalance of the intestinal flora and metabolite can lead to the development of ulcerative colitis (UC), but their role in recurrent-UC is still unclear. We studied the intestinal flora and metabolites associated with recurrent-UC to elucidate the mechanism and biomarkers of recurrent-UC. METHODS Ulcerative colitis (UC) models in active, remission, and recurrence stages were established, and the abundance of intestinal flora was determined by 16 S rRNA sequencing. The changes in the metabolites present in feces and serum were analyzed by UPLC-MS/MS. RESULTS We identified 24 metabolites in feces and serum, which might be used as diagnostic and predictive biomarkers of recurrent-UC. The dominant flora of recurrent-UC included Romboutsia, UCG-005, etc. The results of a network analysis found that long-chain fatty acids and phenylalanine were strongly correlated with Firmicutes and Proteobacteria, which indicated that the recurrence of UC might be closely related to metabolites and microorganisms. CONCLUSION The changes in intestinal microbiota and metabolites are closely related to the development of UC. Microbiota is an important inducer of UC, which can regulate metabolites through the 'microorganism-gut-metabolite' axis. It may provide a new method for the prediction and treatment of UC.
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Affiliation(s)
- Haifan Liu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xue Feng
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Dunfang Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Li Liu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yaqing Liu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Bin Liu
- Heilongjiang University of Chinese Medicine, Harbin, China
| | - Lin Zhu
- Heilongjiang University of Chinese Medicine, Harbin, China
| | - Caijuan Zhang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
| | - Weipeng Yang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
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Zhdanava M, Zhao R, Manceur AM, Ding Z, Boudreau J, Kachroo S, Kerner C, Izanec J, Pilon D. Burden of chronic corticosteroid use among patients with ulcerative colitis initiated on targeted treatment or conventional therapy in the United States. J Manag Care Spec Pharm 2024; 30:141-152. [PMID: 38308626 PMCID: PMC10839463 DOI: 10.18553/jmcp.2024.30.2.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2024]
Abstract
BACKGROUND Chronic corticosteroid use is common in ulcerative colitis (UC); however, real-world evidence of its burden to the health care system is limited. OBJECTIVE To quantify chronic corticosteroid use burden in UC. METHODS Adults with UC initiated on targeted treatments (ie, biologics and advanced/small molecule therapies) or conventional therapy (index date) were selected from a deidentified US insurance claims database (January 1, 2004, to September 30, 2021). Targeted treatments and conventional therapy initiators were stratified into chronic (>90 days corticosteroid use 12 months post-index [landmark]) and nonchronic corticosteroid users. Patient characteristics 12 months pre-index were balanced with inverse probability of treatment weighting. Health care resource use, costs (US$ 2021), and corticosteroid-related complications were compared in the 12 months post-landmark. RESULTS: Targeted treatment initiators included 1,886 chronic and 1,911 nonchronic corticosteroid users; conventional therapy initiators included 4,980 chronic and 5,199 nonchronic users. Chronic vs nonchronic users had 94% more inpatient days and 16% more outpatient visits among targeted treatment initiators, and 135% more inpatient days and 30% more outpatient visits among conventional therapy initiators (all P < 0.01). Mean all-cause total costs per patient per year were $73,491 for chronic vs $58,884 for nonchronic users ($14,607 higher; P < 0.01) for targeted treatment initiators, and $39,335 for chronic vs $21,271 for nonchronic users ($18,065 higher; P < 0.01) for conventional therapy initiators. Odds of infection and bone loss were 14% and 113% higher, respectively, in chronic vs nonchronic users among targeted treatment initiators and 29% and 47% higher in chronic vs nonchronic users among conventional therapy initiators (all P < .01). CONCLUSIONS The results of this study suggest that chronic corticosteroid use is associated with substantial clinical and economic burden and may indicate unmet needs in the management of UC progression.
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Affiliation(s)
| | - Ruizhi Zhao
- Janssen Scientific Affairs, LLC, Horsham, PA
| | | | - Zhijie Ding
- Janssen Scientific Affairs, LLC, Horsham, PA
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Dong K, Zhang Y, Ji HR, Guan ZL, Wang DY, Guo ZY, Deng SJ, He BY, Xing JF, You CY. Dexamethasone-Loaded Lipid Calcium Phosphate Nanoparticles Treat Experimental Colitis by Regulating Macrophage Polarization in Inflammatory Sites. Int J Nanomedicine 2024; 19:993-1016. [PMID: 38299194 PMCID: PMC10829593 DOI: 10.2147/ijn.s442369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 01/20/2024] [Indexed: 02/02/2024] Open
Abstract
Background The M1/M2 polarization of intestinal macrophages exerts an essential function in the pathogenesis of ulcerative colitis (UC), which can be adjusted to alleviate the UC symptoms. Purpose A kind of pH-sensitive lipid calcium phosphate core-shell nanoparticles (NPs), co-loading with dexamethasone (Dex) and its water-soluble salts, dexamethasone sodium phosphate (Dsp), was constructed to comprehensively regulate macrophages in different states towards the M2 phenotype to promote anti-inflammatory effects. Methods Dex and Dsp were loaded in the outer lipid shell and inner lipid calcium phosphate (Cap) core of the LdCaPd NPs, respectively. Then, the morphology of NPs and methods for determining drug concentration were investigated, followed by in vitro protein adsorption, stability, and release tests. Cell experiments evaluated the cytotoxicity, cellular uptake, and macrophage polarization induction ability of NPs. The in vivo distribution and anti-inflammatory effect of NPs were evaluated through a 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced BALB/c mice ulcerative colitis model. Results The LdCaPd NPs showed a particle size of about 200 nm and achieved considerable loading amounts of Dex and Dsp. The in vitro and in vivo studies revealed that in the acidic UC microenvironment, the cationic lipid shell of LdCaPd underwent protonated dissociation to release Dex first for creating a microenvironment conducive to M2 polarization. Then, the exposed CaP core was further engulfed by M1 macrophages to release Dsp to restrict the pro-inflammatory cytokines production by inhibiting the activation and function of the nuclear factor kappa-B (NF-κB) through activating the GC receptor and the NF kappa B inhibitor α (I-κBα), respectively, ultimately reversing the M1 polarization to promote the anti-inflammatory therapy. Conclusion The LdCaPd NPs accomplished the sequential release of Dex and Dsp to the UC site and the inflammatory M1 macrophages at this site, promoting the regulation of macrophage polarization to accelerate the remission of UC symptoms.
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Affiliation(s)
- Kai Dong
- Department of Pharmacy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Ying Zhang
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Hong Rui Ji
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Ze Lin Guan
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Dan Yang Wang
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Zi Yang Guo
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Shu Jing Deng
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Bin Yang He
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Jian Feng Xing
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Cui Yu You
- Department of Pharmacy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
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Özdemir S, Üner B, Baranauskaite J, Sümer E, Yıldırım E, Yaba Uçar A. Design and Characterization of Dexamethasone Loaded Microsponges for the Management of Ulcerative Colitis. Eur J Pharm Biopharm 2023; 187:34-45. [PMID: 37061099 DOI: 10.1016/j.ejpb.2023.04.007] [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: 02/11/2023] [Revised: 03/29/2023] [Accepted: 04/10/2023] [Indexed: 04/17/2023]
Abstract
Ulcerative colitis is an inflammatory condition with ulcerations throughout the colon. The existing remedies have some limitations such as drug inactivation, poor absorption, and adverse reactions. The present study aimed to design novel microsponge formulations to enhance remission of the dexamethasone (as a model pharmaceutical ingredient) in the colon. Microsponges were prepared by using the quasi-emulsion technique. The optimal formulation was selected by applying the design of experiments approach which used methylcellulose (MC) (0.75-2%, w/w), polyvinylalcohol (PVA)(0.5-1%, w/w), and tween 80 (TW80) (1.5-2.5%, w/w). The critical quality attributes were selected as particle size and entrapment efficiency. The particle size and encapsulation efficiency were found as 140.38 ± 9.2 µm and 77.96 ± 3.4 %. After the optimization; morphological, thermal, and physicochemical characterization studies were performed. Ultimately, the optimal formulation was investigated by using the acetic acid-induced ulcerative colitis model in rats. The physicochemical characterization studies confirmed that the formulation components were compatible with each other. The in vitro release mechanisms were fitted to First order kinetics at pH 1.2 (R2:0.9563), and Korsmeyer-Peppas kinetics at pH 4.5 (R2: 0.9877), and pH 6.8 (R2: 0.9706). The medicated microsponges exhibited remarkable recovery compared to the control group of the in vivo ulcerative colitis model (p<0.05). It could be concluded that microsponges were evaluated as a promising alternative drug delivery system for the management of ulcerative colitis.
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Affiliation(s)
- Samet Özdemir
- Istanbul Health and Technology University, Faculty of Pharmacy, Department of Pharmaceutical Technology, 34010, Zeytinburnu, Istanbul, Turkey.
| | - Burcu Üner
- University of Health Science and Pharmacy in St. Louis, Department of Pharmaceutical and Administrative Sciences, 63110, St. Louis, MO, USA; Yeditepe University, Faculty of Pharmacy, Department of Pharmaceutical Technology, 34755, Atasehir, Istanbul, Turkey
| | - Juste Baranauskaite
- Yeditepe University, Faculty of Pharmacy, Department of Pharmaceutical Technology, 34755, Atasehir, Istanbul, Turkey
| | - Engin Sümer
- Yeditepe University, Faculty of Medicine, Experimental Research Center (YUDETAM), 34755, Atasehir, Istanbul, Turkey
| | - Ecem Yıldırım
- Yeditepe University, Faculty of Medicine, Department of Histology and Embryology, 34755, Atasehir, Istanbul, Turkey
| | - Aylin Yaba Uçar
- Yeditepe University, Faculty of Medicine, Department of Histology and Embryology, 34755, Atasehir, Istanbul, Turkey
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Dong K, Deng SJ, He BY, Guo ZY, Guan ZL, Leng X, Ma RR, Wang DY, Xing JF, You CY. Mucoadhesive Nanoparticles Enhance the Therapeutic Effect of Dexamethasone on Experimental Ulcerative Colitis by the Local Administration as an Enema. Drug Des Devel Ther 2023; 17:191-207. [PMID: 36718245 PMCID: PMC9884054 DOI: 10.2147/dddt.s390274] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 01/09/2023] [Indexed: 01/26/2023] Open
Abstract
Background As the first-line drug to treat ulcerative colitis (UC), long-term use of glucocorticoids (GCs) produces severe toxic and side effects. Local administration as enema can increase the local GCs concentrations and reduce systemic exposure to high oral doses by directly delivering GCs to the inflammation site in the distal colorectum. However, UC patients are often accompanied by diarrhea, leading to the short colonic residence time of GCs and failure to exert their function fully. Purpose A kind of mucoadhesive nanoparticles (NPs) loading different dexamethasone derivatives (DDs) were developed, which could attach to the positively charged inflammatory colonic mucosa through electrostatic adsorption after administered by enema, thereby improving the local concentration and achieving effective targeted therapy for UC. Methods Two DDs, dexamethasone hemisuccinate and dexamethasone phosphate, were synthesized. In NPs preparation, The core PEI-DDs NPs were built by the electrostatic adsorption of DDs and the cationic polymer polyethyleneimine (PEI). Then, the natural polyanionic polysaccharide sodium alginate (SA) was electronically coated around NPs to construct the final SA-PEI-DDs NPs, followed by the in vitro stability and release tests, in vitro and in vivo colonic mucosal adhesion tests. In the in vivo anti-UC test, the experimental colitis mice were induced by 2,4,6-trinitrobenzenesulfonic acid. The body weight and disease activity index changes were measured, and the myeloperoxidase activity, pro-inflammatory cytokines concentration, and hematoxylin and eosin staining were also investigated to evaluate the therapeutic effect of NPs. Results The structures of two DDs were demonstrated by 1H-NMR and MS. Both NPs were negatively charged and achieved high loading efficiency of DDs, while their particle sizes were significantly different. NPs showed good stability and sustained release properties in the simulated colonic environment. Moreover, the negative charge on the of NPs surface made them easier to adhere to the positively charged inflammatory colonic mucosa, thereby enhancing the enrichment and retention of DDS in the colitis site. Furthermore, the NPs exhibited better therapeutic effects than free Dex on the experimental colitis mice induced by TNBS through the enema rectal. Conclusion These results indicated the mucoadhesive NPs as a kind of novel nano-enema showed great potential to achieve efficient treatment on UC.
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Affiliation(s)
- Kai Dong
- Department of Pharmacy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China,School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Shu-Jing Deng
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Bin-Yang He
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Zi-Yang Guo
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Ze-Lin Guan
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Xue Leng
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Rui-Rui Ma
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Dan-Yang Wang
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Jian-Feng Xing
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China,Correspondence: Jian-Feng Xing, School of Pharmacy, Xi’an Jiaotong University, 76 Yanta West Road, Xi’an, 710061, Shaanxi, People’s Republic of China, Tel +86-29-82655139, Fax +86-29-82655139, Email
| | - Cui-Yu You
- Department of Pharmacy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China,Cui-Yu You, Department of Pharmacy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China, Tel +86-29-85323241, Fax +86-29-85323240, Email
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Xu Z, Zhang X, Wang W, Zhang D, Ma Y, Zhang D, Chen M. Fructus Mume (Wu Mei) Attenuates Acetic Acid-Induced Ulcerative Colitis by Regulating Inflammatory Cytokine, Reactive Oxygen Species, and Neuropeptide Levels in Model Rats. J Med Food 2022; 25:389-401. [PMID: 35438553 DOI: 10.1089/jmf.2021.k.0155] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Ulcerative colitis (UC) is a chronic idiopathic inflammatory disorder of the large intestine. Fructus mume (FM), a natural food with nutritive and pharmaceutical value, has demonstrated therapeutic efficacy against UC. In this study, we investigated the protective effects and mechanisms of FM against UC. We induced UC in rats with 4% (v/v) acetic acid (AA), orally administered 0.7 or 0.325 g/kg FM and 0.3 g/kg sulfasalazine (SASP) for 7 days, and explored the responses the drugs elicited in the rats. We assessed the general conditions of the rats by the disease active index. We evaluated colon tissue damage macroscopically and by Hematoxylin & Eosin, Alcian Blue-periodic acid-Schiff, and Masson's staining, and explored the potential mechanisms of FM on inflammation, oxidative stress, and neuropeptides by measuring TNF-α, IL-6, IL-8, IL-10, MMP9, CXCR-1, SOD, GSH-px, MDA, ROS, SIRT3, SP, VIP, ghrelin, and 5-HT. FM treatment significantly attenuated colon damage and submucosal fibrosis compared with the model. It lowered serum proinflammatory TNF-α, IL-8, and colonic MMP9 and CXCR-1, and raised serum anti-inflammatory IL-10 levels. FM upregulated the antioxidant enzymes SOD, GSH-px, and SITR3 protein but inhibited ROS and MDA production. It downregulated colonic SP, VIP, ghrelin, and 5-HT. The beneficial effects of FM might be dose dependent. Around 0.7 g/kg FM and SASP displayed similar efficacy for treating AA-induced colitis in rats. Our results provide empirical evidence that FM protects against AA-induced UC in rats via anti-inflammatory and antioxidant mechanisms, and regulates neuropeptides; thus, FM may be a promising, safe, and efficacious alternative therapy for UC, if its efficacy can be confirmed in human trials.
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Affiliation(s)
- Zongying Xu
- Department of Clinical Foundation of Chinese Medicine, College of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Xueli Zhang
- Department of Clinical Foundation of Chinese Medicine, College of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Wenya Wang
- Department of Clinical Foundation of Chinese Medicine, College of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Di Zhang
- Department of Clinical Foundation of Chinese Medicine, College of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yan Ma
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Dongmei Zhang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Meng Chen
- Department of Clinical Foundation of Chinese Medicine, College of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
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Protective Effect of Salvianolic Acid B in Acetic Acid-Induced Experimental Colitis in a Mouse Model. Processes (Basel) 2021. [DOI: 10.3390/pr9091589] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
In its prominent experimental studies salvianolic acid B (Sal B) is novel because of its well-defined, common physiological effects, which include anti-inflammatory, anti-depressant, cardioprotective, DNA protective, neuroprotective and hepatoprotective activity in experimental animals. Initially, Sal B was studied for its anti-inflammatory properties, used as a remedy for a wide range of disease conditions, but its specific efficacy on inflammatory bowel disease is still unclear. The aim of this current study was to understand the therapeutic potential of Sal B in an acetic acid (AA)—triggered experimental mouse colitis model. Colitis was triggered by intrarectal injection of 5% AA, and then laboratory animals were given Sal B (10, 20 and 40 μg/kg) for seven days. The ulcerated colonic mucosa was assessed by clinical experiment, macroscopical, biological and histopathological analysis. The results showed depleted SOD, CAT, GSH levels and consequential elevated MPO and MDA levels and aberrant crypt foci and mast cells were seen in the AA-induced colonic mucosa of experimental animals. The data obtained from this study demonstrate that a dose of 40 µg/kg showed an efficacious anti-ulcer effect against AA-induced experimental colitis. Based on its antioxidant efficacy, Sal B may therefore be useful as a therapeutic approach for ulcerative colitis.
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Song X, Qiao L, Yan S, Chen Y, Dou X, Xu C. Preparation, characterization, and in vivo evaluation of anti-inflammatory activities of selenium nanoparticles synthesized by Kluyveromyces lactis GG799. Food Funct 2021; 12:6403-6415. [PMID: 34057171 DOI: 10.1039/d1fo01019k] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Selenium (Se) is an essential micronutrient that has implications in human diseases, including inflammatory bowel disease (IBD), especially with respect to Se deficiencies. Recently, selenium nanoparticles (SeNPs) have attracted significant attention due to their diversity of biological activities and unique advantages including low toxicity and high biological availability. In this study, an eco-friendly, efficient and low-cost method for synthesis of SeNPs by Kluyveromyces lactis GG799 (K. lactis GG799) was established, and the SeNPs were investigated for their physicochemical properties and anti-inflammatory activities in vivo. K. lactis GG799 was able to successfully transform sodium selenite into bright-red SeNPs with particle sizes of 80 and 150 nm and the nanoparticles accumulated intracellularly. Upon isolation, the SeNPs were found to be mainly capped by proteins and polysaccharides by components analysis. Dietary supplementation with 0.6 mg kg-1 Se (in the form of biogenic SeNPs) effectively attenuated dextran sulphate sodium (DSS)-induced ulcerative colitis (UC) in mice by alleviating oxidative stress and intestinal inflammation. These findings suggested that SeNPs synthesized by K. lactis GG799 may be a promising and safe Se supplement for the prevention and treatment of IBD.
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Affiliation(s)
- Xiaofan Song
- The Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China.
| | - Lei Qiao
- The Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China.
| | - Shuqi Yan
- The Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China.
| | - Yue Chen
- The Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China.
| | - Xina Dou
- The Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China.
| | - Chunlan Xu
- The Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China.
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