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Xu X, Xu X, Zhong K, Wu Z, Wang C, Ding Z, Chen S, Zhang J. Salecan ameliorates LPS-induced acute lung injury through regulating Keap1-Nrf2/HO-1 pathway in mice. Int Immunopharmacol 2024; 128:111512. [PMID: 38199195 DOI: 10.1016/j.intimp.2024.111512] [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: 11/15/2023] [Revised: 01/01/2024] [Accepted: 01/05/2024] [Indexed: 01/12/2024]
Abstract
Acute lung injury (ALI) is a severe clinical condition with high mortality, characterized by rapid onset and limited treatment options. The pathogenesis of ALI involves inflammation and oxidative stress. The polysaccharide salecan, a water-soluble β-(1,3)-D-glucan, has been found to possess numerous pharmaceutical effects, including anti-inflammatory properties, inhibition of oxidative stress, and anti-fatigue effects. This study aims to investigate the protective effect and underlying mechanism of salecan against LPS-induced ALI in mice. Using an in vivo LPS-induced ALI mouse model and an in vitro RAW264.7 cell system, we investigated the role of salecan in ALI with various experimental approaches, including histological staining, quantitative real-time PCR, flow cytometry, western blot analysis, and other relevant assays. Pre-treatment with salecan effectively attenuated LPS-induced ALI in vivo, reducing the severity of pulmonary edema, inflammation, and oxidative stress. NMR-based metabolomic profiling analysis revealed that salecan attenuated LPS-induced metabolic imbalances associated with ALI. Furthermore, salecan downregulated Keap1 and upregulated Nrf2 and HO-1 protein levels, indicating its modulation of the Keap1-Nrf2/HO-1 signaling pathway as a potential mechanism underlying its protective effects against ALI. In vitro studies on RAW264.7 cells revealed that salecan exhibited binding affinity towards macrophages, thereby alleviating LPS-induced apoptosis and inflammation, which underpin its therapeutic potential against ALI. Our study suggests that salecan can alleviate LPS-induced ALI by modulating oxidative stress, inflammatory response, and apoptosis through the activation of the Keap1-Nrf2/HO-1 pathway. These findings provide novel insights into the potential therapeutic use of salecan for the treatment of ALI.
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Affiliation(s)
- Xiaodong Xu
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Xi Xu
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Kunxia Zhong
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Zhuhui Wu
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Chenchen Wang
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Zhao Ding
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Shijunyin Chen
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Jianfa Zhang
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing 210094, China.
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Alibeg AAA, Mohammed MH. Molecular docking, synthesis, characteristics and preliminary cytotoxic study of new coumarin-sulfonamide derivatives as histone deacetylase inhibitors. WIADOMOSCI LEKARSKIE (WARSAW, POLAND : 1960) 2024; 77:514-525. [PMID: 38691794 DOI: 10.36740/wlek202403118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
OBJECTIVE Aim: To evaluate the cytotoxic activity of newly synthesized a series of novel HDAC inhibitors comprising sulfonamide as zinc binding group and Coumarin as cap groups. PATIENTS AND METHODS Materials and Methods: The utilization of sulfonamide as zinc binding group and Coumarin as cap groups known to possess antitumor activity in the designed of new histone deacetylase inhibitors and using the docking and MTT assay to evaluate the compounds. RESULTS Results: Four compounds have been synthesized and characterized successfully by ART-FTIR, NMR and ESI-Ms. The synthesized compound assessed for their cytotoxic activity against hepatoblastoma HepG2 (IC50, I=0.094, II=0.040, III=0.032, IV=0.046, SAHA=0.141) and human colon adenocarcinoma MCF-7 (IC50, I=0.135, II=0.050, III= 0.065, IV=0.059, SAHA=0.107). The binding mode to the active site of [HDAC6] were determined by docking study which give results that they might be good inhibitors for [HDAC6]. CONCLUSION Conclusions: The synthesized compounds (I, II, III and IV) showed a comparable cytotoxic result with FDA approved drug (SAHA) toward HepG2 and MCF-7 cancer cell lines and their docking analysis provided a preliminary indication that they are viable [HDAC6] candidates.
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Pourova J, Dias P, Pour M, Bittner Fialová S, Czigle S, Nagy M, Tóth J, Balázs VL, Horváth A, Csikós E, Farkas Á, Horváth G, Mladěnka P. Proposed mechanisms of action of herbal drugs and their biologically active constituents in the treatment of coughs: an overview. PeerJ 2023; 11:e16096. [PMID: 37901462 PMCID: PMC10607228 DOI: 10.7717/peerj.16096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 08/24/2023] [Indexed: 10/31/2023] Open
Abstract
Various medicinal plants find their use in cough treatment, based on traditions and long-term experience. Pharmacological principles of their action, however, are much less known. Herbal drugs usually contain a mixture of potentially active compounds, which can manifest diverse effects. Expectorant or antitussive effects, which can be accompanied by others, such as anti-inflammatory or antibacterial, are probably the most important in the treatment of coughs. The aim of this review is to summarize the current state of knowledge of the effects of medicinal plants or their constituents on cough, based on reliable pharmacological studies. First, a comprehensive description of each effect is provided in order to explain the possible mechanism of action in detail. Next, the results related to individual plants and substances are summarized and critically discussed based on pharmacological in vivo and in vitro investigation.
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Affiliation(s)
- Jana Pourova
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Charles University Prague, Hradec Králové, Czech Republic
| | - Patricia Dias
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Charles University Prague, Hradec Králové, Czech Republic
| | - Milan Pour
- Department of Organic and Bioorganic Chemistry, Faculty of Pharmacy, Charles University Prague, Hradec Králové, Czech Republic
| | - Silvia Bittner Fialová
- Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University Bratislava, Bratislava, Slovak Republic
| | - Szilvia Czigle
- Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University Bratislava, Bratislava, Slovak Republic
| | - Milan Nagy
- Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University Bratislava, Bratislava, Slovak Republic
| | - Jaroslav Tóth
- Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University Bratislava, Bratislava, Slovak Republic
| | | | - Adrienn Horváth
- Department of Pharmaceutical Biology, Faculty of Pharmacy, University of Pécs, Pécs, Hungary
| | - Eszter Csikós
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, Pécs, Hungary
| | - Ágnes Farkas
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, Pécs, Hungary
| | - Györgyi Horváth
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, Pécs, Hungary
| | - Přemysl Mladěnka
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Charles University Prague, Hradec Králové, Czech Republic
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Tirunavalli SK, Pramatha S, Eedara AC, Walvekar KP, Immanuel C, Potdar P, Nayak PG, Chamallamudi MR, Sistla R, Chilaka S, Andugulapati SB. Protective effect of β-glucan on Poly(I:C)-induced acute lung injury/inflammation: Therapeutic implications of viral infections in the respiratory system. Life Sci 2023; 330:122027. [PMID: 37597767 DOI: 10.1016/j.lfs.2023.122027] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/27/2023] [Accepted: 08/15/2023] [Indexed: 08/21/2023]
Abstract
AIMS Acute lung inflammation, particularly acute respiratory distress syndrome (ARDS), is caused by a variety of pathogens including bacteria and viruses. β-Glucans have been reported to possess both anti-inflammatory and immunomodulatory properties. The current study evaluated the therapeutic effect of β-glucans on polyinosinic:polycytidylic acid (Poly(I:C)) induced lung inflammation in both hamster and mice models. MAIN METHODS Poly(I:C)-induced ALI/inflammation models were developed in hamsters (2.5 mg/kg) and mice (2 mg/kg) by delivering the Poly(I:C) intratracheally, and followed with and without β-glucan administration. After treatment, lung mechanics were assessed and lung tissues were isolated and analyzed for mRNA/protein expression, and histopathological examinations. KEY FINDINGS Poly(I:C) administration, caused a significant elevation of inflammatory marker's expression in lung tissues and showed abnormal lung mechanics in mice and hamsters. Interestingly, treatment with β-glucan significantly (p < 0.001) reversed the Poly(I:C)-induced inflammatory events and inflammatory markers expression in both mRNA (IL-6, IL-1β, TNF-α, CCL2 and CCL7) and protein levels (TNF-α, CD68, myeloperoxidase, neutrophil elastase, MUC-5Ac and iNOS). Lung functional assays revealed that β-glucan treatment significantly improved lung mechanics. Histopathological analysis showed that β-glucan treatment significantly attenuated the Poly(I:C) induced inflammatory cell infiltration, injury and goblet cell population in lung tissues. Consistent with these findings, β-glucan treatment markedly reduced the number of neutrophils and macrophages in lung tissues. Our findings further demonstrated that β-glucan could reduce inflammation by suppressing the MAPK pathway. SIGNIFICANCE These results suggested that β-glucan may attenuate the pathogenic effects of Poly(I:C)-induced ALI/ARDS via modulating the MAPK pathway, indicating β-glucan as a possible therapeutic agent for the treatment of viral-pulmonary inflammation/injury.
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Affiliation(s)
- Satya Krishna Tirunavalli
- Division of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, Telangana, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201 002, India
| | - Shashidhar Pramatha
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Udupi 576104, Karnataka, India
| | - Abhisheik Chowdary Eedara
- Division of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, Telangana, India
| | - Komal Paresh Walvekar
- Division of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, Telangana, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201 002, India
| | - Christiana Immanuel
- Division of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, Telangana, India
| | - Pooja Potdar
- Division of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, Telangana, India
| | - Pawan G Nayak
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Udupi 576104, Karnataka, India
| | - Mallikarjuna Rao Chamallamudi
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Udupi 576104, Karnataka, India
| | - Ramakrishna Sistla
- Division of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, Telangana, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201 002, India
| | - Sabarinadh Chilaka
- Division of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, Telangana, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201 002, India.
| | - Sai Balaji Andugulapati
- Division of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, Telangana, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201 002, India.
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Al Mahmud A, Shafayet Ahmed Siddiqui, Karim MR, Al-Mamun MR, Akhter S, Sohel M, Hasan M, Bellah SF, Amin MN. Clinically proven natural products, vitamins and mineral in boosting up immunity: A comprehensive review. Heliyon 2023; 9:e15292. [PMID: 37089292 PMCID: PMC10079597 DOI: 10.1016/j.heliyon.2023.e15292] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 03/13/2023] [Accepted: 03/31/2023] [Indexed: 03/26/2024] Open
Abstract
BACKGROUND and Purposes: The terminology "immune boost-up" was the talk of the topic in this Covid-19 pandemic. A significant number of the people took initiative to increase the body's defense capacity through boosting up immunity worldwide. Considering this, the study was designed to explain the natural products, vitamins and mineral that were proved by clinical trail as immunity enhancer. METHODS Information was retrieved from SciVerse Scopus ® (Elsevier Properties S. A, USA), Web of Science® (Thomson Reuters, USA), and PubMed based on immunity, nutrients, natural products in boosting up immunity, minerals and vitamins in boosting up immunity, and immune booster agents. RESULT A well-defined immune cells response provide a-well functioning defense system for the human physiological system. Cells of the immune system must require adequate stimulation so that these cells can prepare themselves competent enough to fight against any unintended onslaught. Several pharmacologically active medicinal plants and plants derived probiotics or micronutrients have played a pivotal role in enhancing the immune boost-up process. Their role has been well established from the previous study. Immune stimulating cells, especially cells of acquired immunity are closely associated with the immune-boosting up process because all the immunological reactions and mechanisms are mediated through these cells. CONCLUSION This article highlighted the mechanism of action of different natural products, vitamins and mineral in boosting up the immunity of the human body and strengthening the body's defense system. Therefore, it is recommended that until the specific immune-boosting drugs are available in pharma markets, anyone can consider the mentioned products as dietary supplements to boost up the immunity.
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Affiliation(s)
- Abdullah Al Mahmud
- Department of Pharmacy, Manarat International University, Ashulia, Dhaka, 1341, Bangladesh
- Pratyasha Health Biomedical Research Center, Dhaka, 1230, Bangladesh
| | - Shafayet Ahmed Siddiqui
- Department of Pharmacy, Manarat International University, Ashulia, Dhaka, 1341, Bangladesh
- Pratyasha Health Biomedical Research Center, Dhaka, 1230, Bangladesh
| | - Md Rezaul Karim
- Department of Pharmacy, Manarat International University, Ashulia, Dhaka, 1341, Bangladesh
| | | | - Shammi Akhter
- Department of Pharmacy, Varendra University, Rajshahi, 6204, Bangladesh
| | - Md Sohel
- Pratyasha Health Biomedical Research Center, Dhaka, 1230, Bangladesh
- Department of Biochemistry and Molecular Biology, Primeasia University, Dhaka, 1213, Bangladesh
| | - Mahedi Hasan
- Department of Pharmacy, Manarat International University, Ashulia, Dhaka, 1341, Bangladesh
| | - Sm Faysal Bellah
- Department of Pharmacy, Manarat International University, Ashulia, Dhaka, 1341, Bangladesh
| | - Mohammad Nurul Amin
- Pratyasha Health Biomedical Research Center, Dhaka, 1230, Bangladesh
- Department of Pharmacy, Atish Dipankar University of Science and Technology, Dhaka, 1230, Bangladesh
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Zhou J, Fu Y, Qi G, Dai J, Zhang H, Wang J, Wu S. Yeast cell-wall polysaccharides improve immunity and attenuate inflammatory response via modulating gut microbiota in LPS-challenged laying hens. Int J Biol Macromol 2022; 224:407-421. [DOI: 10.1016/j.ijbiomac.2022.10.133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 09/30/2022] [Accepted: 10/14/2022] [Indexed: 11/05/2022]
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Xue Y, Zhang Y, Chen L, Wang Y, Lv Z, Yang LQ, Li S. Citrulline protects against LPS‑induced acute lung injury by inhibiting ROS/NLRP3‑dependent pyroptosis and apoptosis via the Nrf2 signaling pathway. Exp Ther Med 2022; 24:632. [PMID: 36160882 PMCID: PMC9468793 DOI: 10.3892/etm.2022.11569] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 07/29/2022] [Indexed: 12/02/2022] Open
Abstract
Acute lung injury (ALI) is a common complication in patients with sepsis and is accompanied by high mortality. The present study aimed to investigate if the organic compound citrulline has a protective against lipopolysaccharide (LPS)-stimulated ALI and its potential mechanisms. ALI was induced in mice by intraperitoneal (i.p.) injection of LPS (10 mg/kg). Citrulline (1 g/kg/day) was administrated i.p. 7 days prior to LPS injection. Mouse lung vascular endothelial cells (MLVECs) were divided into five groups: Control, LPS, LPS + Cit, LPS + N-acetyl-L-cysteine (NAC) and LPS + Cit + ML385. Lung injury was determined by morphology changes. Apoptosis and pyroptosis were detected using western blot analysis and immunofluorescence. The present results indicated that citrulline can significantly attenuate ALI. Citrulline pretreatment decreased the expression of NOD-, LRR- and pyrin domain-containing protein 3 (NLRP3) inflammasome and decreased pyroptosis and apoptosis. Intervention with the total reactive oxygen species (ROS) scavenger N-acetyl-L-cysteine attenuated NLRP3 inflammasome-associated pyroptosis and apoptosis in LPS-treated MLVECs. Citrulline pretreatment inhibited pyroptotic cell death and apoptosis induced by LPS. Citrulline decreased accumulation of intracellular ROS and activated the nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway. Furthermore, the Nrf2 inhibitor ML385 reversed ROS generation, NLRP3 inflammasome-mediated pyroptosis and apoptosis suppressed by citrulline. In summary, the present data demonstrated that citrulline may confer protection against ALI via inhibition of ROS/NLRP3 inflammasome-dependent pyroptosis and apoptosis via the Nrf2 signaling pathway.
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Affiliation(s)
- Yao Xue
- Department of Anesthesiology, The Affiliated Shenmu Hospital of Northwest University, Shenmu, Shaanxi 719300, P.R. China
| | - Yunqian Zhang
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, P.R. China
| | - Li Chen
- Department of Anesthesiology, Suqian Hospital of Nanjing Drum‑Tower Hospital Group, Suqian, Jiangsu 223865, P.R. China
| | - Yan Wang
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, P.R. China
| | - Zhou Lv
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, P.R. China
| | - Li-Qiao Yang
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, P.R. China
| | - Siyuan Li
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, P.R. China
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Murphy EJ, Rezoagli E, Pogue R, Simonassi-Paiva B, Abidin IIZ, Fehrenbach GW, O'Neil E, Major I, Laffey JG, Rowan N. Immunomodulatory activity of β-glucan polysaccharides isolated from different species of mushroom - A potential treatment for inflammatory lung conditions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 809:152177. [PMID: 34875322 PMCID: PMC9752827 DOI: 10.1016/j.scitotenv.2021.152177] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 11/29/2021] [Accepted: 11/30/2021] [Indexed: 05/08/2023]
Abstract
Acute respiratory distress syndrome (ARDS) is the most common form of acute severe hypoxemic respiratory failure in the critically ill with a hospital mortality of 40%. Alveolar inflammation is one of the hallmarks for this disease. β-Glucans are polysaccharides isolated from a variety of natural sources including mushrooms, with documented immune modulating properties. To investigate the immunomodulatory activity of β-glucans and their potential as a treatment for ARDS, we isolated and measured glucan-rich polysaccharides from seven species of mushrooms. We used three models of in-vitro injury in THP-1 macrophages, Peripheral blood mononuclear cells (CD14+) (PMBCs) isolated from healthy volunteers and lung epithelial cell lines. We observed variance between β-glucan content in extracts isolated from seven mushroom species. The extracts with the highest β-glucan content found was Lentinus edodes which contained 70% w/w and Hypsizygus tessellatus which contained 80% w/w with low levels of α-glucan. The extracts had the ability to induce secretion of up to 4000 pg/mL of the inflammatory cytokine IL-6, and up to 5000 pg/mL and 500 pg/mL of the anti-inflammatory cytokines IL-22 and IL-10, respectively, at a concentration of 1 mg/mL in THP-1 macrophages. In the presence of cytokine injury, IL-8 was reduced from 15,000 pg/mL to as low as 10,000 pg/mL in THP-1 macrophages. After insult with LPS, phagocytosis dropped from 70-90% to as low 10% in CD14+ PBMCs. After LPS insult CCL8 relative gene expression was reduced, and IL-10 relative gene expression increased from 50 to 250-fold in THP-1 macrophages. In lung epithelial cells, both A549 and BEAS-2B after IL-1β insult, IL-8 levels dropped from 10,000 pg/mL to as low as 6000 pg/mL. TNF-α levels dropped 10-fold from 100 pg/mL to just below 10 pg/mL. These results demonstrate the therapeutic potential of β-glucans in inflammatory lung conditions. Findings also advance bio-based research that connects green innovation with One Health applications for the betterment of society.
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Affiliation(s)
- Emma J Murphy
- Bioscience Research Institute, Athlone Institute of Technology, Athlone, Ireland; Department of Graduate Studies, Limerick Institute of Technology, Limerick, Ireland
| | - Emanuele Rezoagli
- Lung Biology Group, Regenerative Medicine Institute at CURAM Centre for Medical Devices, School of Medicine, National University of Ireland Galway, Galway, Ireland; Anaesthesia and Intensive Care Medicine, University Hospital Galway, Galway, Ireland; Department of Medicine and Surgery, University of Milan-Bicocca, Monza, Italy.
| | - Robert Pogue
- Bioscience Research Institute, Athlone Institute of Technology, Athlone, Ireland; Post-Graduate Program in Genomic Sciences and Biotechnology, Catholic University of Brasilia, Brazil
| | | | | | | | - Emer O'Neil
- Bioscience Research Institute, Athlone Institute of Technology, Athlone, Ireland
| | - Ian Major
- Materials Research Institute, Athlone Institute of Technology, Athlone, Ireland
| | - John G Laffey
- Lung Biology Group, Regenerative Medicine Institute at CURAM Centre for Medical Devices, School of Medicine, National University of Ireland Galway, Galway, Ireland; Anaesthesia and Intensive Care Medicine, University Hospital Galway, Galway, Ireland
| | - Neil Rowan
- Bioscience Research Institute, Athlone Institute of Technology, Athlone, Ireland
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Ustunova S, Haciosmanoglu E, Bulut H, Elibol B, Kilic A, Hekimoglu R, Tunc S, Atmaca R, Kaygusuz I, Tunc S, Tunc GB, Meral I. A low direct electrical signal attenuates oxidative stress and inflammation in septic rats. PLoS One 2021; 16:e0257177. [PMID: 34499695 PMCID: PMC8428794 DOI: 10.1371/journal.pone.0257177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 08/24/2021] [Indexed: 11/19/2022] Open
Abstract
Electrical stimulation is proposed to exert an antimicrobial effect according to studies performed using bacterial and cell cultures. Therefore, we investigated the effects of electrification on inflammation in septic rats. Twenty-eight male Wistar albino rats were divided into 4 groups: healthy control (C), electrified healthy (E), sepsis (S), and electrified sepsis (SE) groups. Staphylococcus aureus (1 x 109 colonies) in 1 ml of medium was intraperitoneally injected into rats to produce a sepsis model. The rats in the E and SE groups were exposed to a low direct electrical signal (300 Hz and 2.5 volts) for 40 min and 1 and 6 h after bacterial infection. Immediately after the second electrical signal application, blood and tissue samples of the heart, lung, and liver were collected. An antibacterial effect of a low direct electrical signal was observed in the blood of rats. The effects of electrical signals on ameliorating changes in the histological structure of tissues, blood pH, gases, viscosity and cell count, activities of some important enzymes, oxidative stress parameters, inflammation and tissue apoptosis were observed in the SE group compared to the S group. Low direct electrical signal application exerts antibacterial, antioxidant, anti-inflammatory and antiapoptotic effects on septic rats due to the induction of electrolysis in body fluids without producing any tissue damage.
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Affiliation(s)
- Savas Ustunova
- Department of Physiology, School of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Ebru Haciosmanoglu
- Department of Biophysics, School of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Huri Bulut
- Department of Biochemistry, School of Medicine, Istinye University, Istanbul, Turkey
| | - Birsen Elibol
- Department of Medical Biology, School of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Aysu Kilic
- Department of Physiology, School of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Rumeysa Hekimoglu
- Department of Histology & Embryology, School of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | | | | | | | | | | | - Ismail Meral
- Department of Physiology, School of Medicine, Bezmialem Vakif University, Istanbul, Turkey
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Akpinar E, Kutlu Z, Kose D, Aydin P, Tavaci T, Bayraktutan Z, Yuksel TN, Yildirim S, Eser G, Dincer B. Protective Effects of Idebenone against Sepsis Induced Acute Lung Damage. J INVEST SURG 2021; 35:560-568. [PMID: 33722148 DOI: 10.1080/08941939.2021.1898063] [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: 01/01/2023]
Abstract
BACKGROUND/AIMS Sepsis is an uncontrolled systemic infection, withcomplex pathophysiology that may result in acute lung organ damage and cause multiple organ failure. Although much research has been conducted to illuminate sepsis's complex pathophysiology, sepsis treatment protocols are limited, and sepsis remains an important cause of mortality andmorbidity in intensive care units.Various studies have shown that idebenone (IDE) possesses strong antioxidant properties, which inhibit lipid peroxidation and protect cells from oxidative damage. The present study aimed to evaluate the protective effects of IDE against lung injury in a cecal ligation and puncture (CLP)-induced sepsis rat model. METHODS Male albino Wistar rats were used. The animals were divided into a healthy control (no treatment), CLP, IDE control (200 mg/kg), and CLP + IDE subgroups (50 mg/kg, 100 mg/kg, and 200 mg/kg), with nine rats in each group.IDE was administered 1 h after CLP induction.To evaluate the protective effects of IDE, lung tissues were collected 16 h after sepsis for biochemical, immunohistochemical staining, and histopathological examination. RESULTS IDE significantly ameliorated sepsis-induced disturbances in oxidative stress-related factors, with its effects increasing in accordance with the dose.IDE also abolished histopathological changes in lung tissues associated with CLP.Furthermore, interleukin 1 beta (IL-1β)and tumor necrosis factor-alpha (TNF-α) immunopositivity markedly decreased in the septic rats following IDE treatment. CONCLUSIONS IDE largely mitigated the inflammatory response in sepsis-induced lung injury by decreasing free radicals and preventing lipid peroxidation. The results suggest that IDE may represent a potential novel therapeutic drug for sepsis treatment.
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Affiliation(s)
- Erol Akpinar
- Department of Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Zerrin Kutlu
- Department of Biochemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Duygu Kose
- Department of Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey.,Clinical Research, Development and Design Application and Research Center, Ataturk University, Erzurum, Turkey
| | - Pelin Aydin
- Department of Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey.,Department of Anesthesiology and Reanimation, Educational and Research Hospital, Erzurum, Turkey
| | - Taha Tavaci
- Department of Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Zafer Bayraktutan
- Department of Biochemistry, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Tugba Nurcan Yuksel
- Department of Pharmacology, Faculty of Medicine, Namik Kemal University, Tekirdag, Turkey
| | - Serkan Yildirim
- Department of Pathology, Faculty of Veterinary Medicine, Ataturk University, Erzurum, Turkey
| | - Gizem Eser
- Department of Pathology, Faculty of Veterinary Medicine, Ataturk University, Erzurum, Turkey
| | - Busra Dincer
- Department of Pharmacology, Faculty of Pharmacy, Erzincan Binali Yildirim University, Erzincan, Turkey
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11
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Omara II, Pender CM, White MB, Dalloul RA. The Modulating Effect of Dietary Beta-Glucan Supplementation on Expression of Immune Response Genes of Broilers during a Coccidiosis Challenge. Animals (Basel) 2021; 11:ani11010159. [PMID: 33445562 PMCID: PMC7827683 DOI: 10.3390/ani11010159] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/06/2021] [Accepted: 01/08/2021] [Indexed: 02/06/2023] Open
Abstract
Simple Summary Avian coccidiosis is the leading parasitic disease in the poultry industry and means to control its damages continue to be explored. This study evaluated the feeding effects of a yeast-derived β-glucan on expression of immune response genes in the spleen, thymus, and bursa of commercial broiler chickens during an Eimeria challenge. The study consisted of two dietary treatments (0% or 0.1% β-glucan) each with or without a coccidiosis challenge. There were significant effects from dietary β-glucan, Eimeria challenge, and their interaction for several gene targets in the spleen, thymus, and bursa on days 10 and 14 of age. Based on the current results, supplementation of dietary β-glucan in Eimeria-challenged birds enhanced and modulated the expression of immune response genes during coccidiosis. Abstract This study investigated the effects of a yeast-derived β-glucan (Auxoferm YGT) supplementation on mRNA expression of immune response genes in the spleen, thymus, and bursa of broiler chickens during a mixed Eimeria infection. Day (d)-old chicks (n = 1440) were fed diets containing 0% or 0.1% YGT. On d 8 post-hatch, half the replicate pens (n = 8) were challenged with a mixed inoculum of E. acervulina, E. maxima, and E. tenella. On d 10 and d 14 post-hatch, the spleen, thymus, and bursa were collected to evaluate mRNA abundance by quantitative real-time PCR. Data were analyzed using PROC GLIMMIX model (2-way interaction) and differences were established by LS-MEANS with significance reported at p ≤ 0.05. In spleen tissues at d 10, expression of interleukin (IL)-10 and inducible nitric oxide synthase (iNOS) were elevated in both 0.1% YGT-fed challenged and non-challenged birds. In thymus tissues at d 14, expression of IL-10, IL-17F, interferon (IFN)-γ, iNOS, and macrophage migration inhibitory factor (MIF) were elevated in challenged birds fed 0.1% YGT. In bursal tissues at d 10 and d 14, expression of IL-10, IFN-γ, iNOS (d 10 only), and MIF were elevated in 0.1% YGT-fed challenged and non-challenged birds. Dietary β-glucan supplementation to chicken diets modulated their immune response to the Eimeria challenge.
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Affiliation(s)
- Islam I. Omara
- Avian Immunobiology Laboratory, Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA 24061, USA; (I.I.O.); (C.M.P.); (M.B.W.)
- Animal and Poultry Division, Department of Animal Production, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
| | - Chasity M. Pender
- Avian Immunobiology Laboratory, Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA 24061, USA; (I.I.O.); (C.M.P.); (M.B.W.)
| | - Mallory B. White
- Avian Immunobiology Laboratory, Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA 24061, USA; (I.I.O.); (C.M.P.); (M.B.W.)
| | - Rami A. Dalloul
- Avian Immunobiology Laboratory, Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA 24061, USA; (I.I.O.); (C.M.P.); (M.B.W.)
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
- Correspondence:
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12
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Murphy EJ, Rezoagli E, Major I, Rowan NJ, Laffey JG. β-Glucan Metabolic and Immunomodulatory Properties and Potential for Clinical Application. J Fungi (Basel) 2020; 6:E356. [PMID: 33322069 PMCID: PMC7770584 DOI: 10.3390/jof6040356] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/07/2020] [Accepted: 12/08/2020] [Indexed: 12/21/2022] Open
Abstract
β-glucans are complex polysaccharides that are found in several plants and foods, including mushrooms. β-glucans display an array of potentially therapeutic properties. β-glucans have metabolic and gastro-intestinal effects, modulating the gut microbiome, altering lipid and glucose metabolism, reducing cholesterol, leading to their investigation as potential therapies for metabolic syndrome, obesity and diet regulation, gastrointestinal conditions such as irritable bowel, and to reduce cardiovascular and diabetes risk. β-glucans also have immune-modulating effects, leading to their investigation as adjuvant agents for cancers (solid and haematological malignancies), for immune-mediated conditions (e.g., allergic rhinitis, respiratory infections), and to enhance wound healing. The therapeutic potential of β-glucans is evidenced by the fact that two glucan isolates were licensed as drugs in Japan as immune-adjuvant therapy for cancer in 1980. Significant challenges exist to further clinical testing and translation of β-glucans. The diverse range of conditions for which β-glucans are in clinical testing underlines the incomplete understanding of the diverse mechanisms of action of β-glucans, a key knowledge gap. Furthermore, important differences appear to exist in the effects of apparently similar β-glucan preparations, which may be due to differences in sources and extraction procedures, another poorly understood issue. This review will describe the biology, potential mechanisms of action and key therapeutic targets being investigated in clinical trials of β-glucans and identify and discuss the key challenges to successful translation of this intriguing potential therapeutic.
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Affiliation(s)
- Emma J. Murphy
- Bioscience Research Institute, Athlone Institute of Technology, N37 HD68 Athlone, Ireland; (E.J.M.); (E.R.); (N.J.R.)
| | - Emanuele Rezoagli
- Bioscience Research Institute, Athlone Institute of Technology, N37 HD68 Athlone, Ireland; (E.J.M.); (E.R.); (N.J.R.)
- Lung Biology Group, Regenerative Medicine Institute at CURAM Centre for Medical Devices, School of Medicine, National University of Ireland Galway, H91 CF50 Galway, Ireland
- Anaesthesia and Intensive Care Medicine, University Hospital Galway, H91 YR71 Galway, Ireland
- Department of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy
| | - Ian Major
- Materials Research Institute, Athlone Institute of Technology, N37 HD68 Athlone, Ireland;
| | - Neil J. Rowan
- Bioscience Research Institute, Athlone Institute of Technology, N37 HD68 Athlone, Ireland; (E.J.M.); (E.R.); (N.J.R.)
| | - John G. Laffey
- Lung Biology Group, Regenerative Medicine Institute at CURAM Centre for Medical Devices, School of Medicine, National University of Ireland Galway, H91 CF50 Galway, Ireland
- Anaesthesia and Intensive Care Medicine, University Hospital Galway, H91 YR71 Galway, Ireland
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13
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Galanakis CM, Aldawoud TM, Rizou M, Rowan NJ, Ibrahim SA. Food Ingredients and Active Compounds against the Coronavirus Disease (COVID-19) Pandemic: A Comprehensive Review. Foods 2020; 9:E1701. [PMID: 33233560 PMCID: PMC7699782 DOI: 10.3390/foods9111701] [Citation(s) in RCA: 129] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/05/2020] [Accepted: 11/16/2020] [Indexed: 02/07/2023] Open
Abstract
As media reports have noted, the COVID-19 pandemic has accelerated market mainstreaming of immune-boosting food bioactives, supplements, and nutraceuticals. However, most studies reporting on the potential of bioactives against COVID-19 transmission have been uploaded as preprints with little opportunity to revise content for benefit and impact. The current review discusses current best evidence and information underpinning the role of food ingredients and bioactive compounds in supporting immune functions in humans and animals, specifically in the prevention and treatment of COVID-19 disease. Up to now, some evidence from randomized population and clinical trials has suggested that vitamin D levels may be linked to COVID-19 transmission and severity. Numerous theoretical studies have pointed to polyphenols and particularly flavonoids as potential inhibitors of SARS-CoV-2 infection. There is also inconclusive evidence to support the future use of β-glucan to address COVID-19 due in part to variability in immune response arising from heterogeneity in polysaccharide branch and chain length for different sources and the absence of a standardized extraction method. To confirm the promising outcomes and hypotheses for bioactive compounds, more randomized and controlled clinical studies are needed. The results of such studies would have a profound effect on the prospects of food supplements and nutraceuticals as potential prophylaxis against COVID-19 and serve to help consumers to protect themselves during the post-lockdown recovery era.
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Affiliation(s)
- Charis M. Galanakis
- Research & Innovation Department, Galanakis Laboratories, 73131 Chania, Greece;
- College of Science, King Saud University, Riyadh 12372, Saudi Arabia;
- Food Waste Recovery Group, ISEKI Food Association, 1190 Vienna, Austria
| | | | - Myrto Rizou
- Research & Innovation Department, Galanakis Laboratories, 73131 Chania, Greece;
| | - Neil J. Rowan
- Bioscience Research Institute, Athlone Institute of Technology, Dublin Road, N37 F6D7 Athlone, Ireland;
- Empower Eco Sustainability Hub, Lough Boora, R35 DA50 Co. Offaly, Ireland
| | - Salam A. Ibrahim
- Food and Nutritional Sciences Program, North Carolina Agricultural and Technical State University, Greensboro, NC 27401, USA
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14
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Vassiliou AG, Kotanidou A, Dimopoulou I, Orfanos SE. Endothelial Damage in Acute Respiratory Distress Syndrome. Int J Mol Sci 2020; 21:ijms21228793. [PMID: 33233715 PMCID: PMC7699909 DOI: 10.3390/ijms21228793] [Citation(s) in RCA: 104] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/14/2020] [Accepted: 11/18/2020] [Indexed: 01/01/2023] Open
Abstract
The pulmonary endothelium is a metabolically active continuous monolayer of squamous endothelial cells that internally lines blood vessels and mediates key processes involved in lung homoeostasis. Many of these processes are disrupted in acute respiratory distress syndrome (ARDS), which is marked among others by diffuse endothelial injury, intense activation of the coagulation system and increased capillary permeability. Most commonly occurring in the setting of sepsis, ARDS is a devastating illness, associated with increased morbidity and mortality and no effective pharmacological treatment. Endothelial cell damage has an important role in the pathogenesis of ARDS and several biomarkers of endothelial damage have been tested in determining prognosis. By further understanding the endothelial pathobiology, development of endothelial-specific therapeutics might arise. In this review, we will discuss the underlying pathology of endothelial dysfunction leading to ARDS and emerging therapies. Furthermore, we will present a brief overview demonstrating that endotheliopathy is an important feature of hospitalised patients with coronavirus disease-19 (COVID-19).
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Affiliation(s)
- Alice G. Vassiliou
- 1st Department of Critical Care Medicine & Pulmonary Services, School of Medicine, National and Kapodistrian University of Athens, Evangelismos Hospital, 106 76 Athens, Greece; (A.G.V.); (A.K.); (I.D.)
| | - Anastasia Kotanidou
- 1st Department of Critical Care Medicine & Pulmonary Services, School of Medicine, National and Kapodistrian University of Athens, Evangelismos Hospital, 106 76 Athens, Greece; (A.G.V.); (A.K.); (I.D.)
| | - Ioanna Dimopoulou
- 1st Department of Critical Care Medicine & Pulmonary Services, School of Medicine, National and Kapodistrian University of Athens, Evangelismos Hospital, 106 76 Athens, Greece; (A.G.V.); (A.K.); (I.D.)
| | - Stylianos E. Orfanos
- 1st Department of Critical Care Medicine & Pulmonary Services, School of Medicine, National and Kapodistrian University of Athens, Evangelismos Hospital, 106 76 Athens, Greece; (A.G.V.); (A.K.); (I.D.)
- 2nd Department of Critical Care, School of Medicine, National and Kapodistrian University of Athens, Attikon Hospital, 124 62 Athens, Greece
- Correspondence: or ; Tel.: +30-2107-235-521
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15
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Zhen W, Shao Y, Wu Y, Li L, Pham VH, Abbas W, Wan Z, Guo Y, Wang Z. Dietary yeast β-glucan supplementation improves eggshell color and fertile eggs hatchability as well as enhances immune functions in breeder laying hens. Int J Biol Macromol 2020; 159:607-621. [DOI: 10.1016/j.ijbiomac.2020.05.134] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 05/07/2020] [Accepted: 05/16/2020] [Indexed: 12/12/2022]
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16
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DiNicolantonio JJ, Barroso-Aranda J. Harnessing adenosine A2A receptors as a strategy for suppressing the lung inflammation and thrombotic complications of COVID-19: Potential of pentoxifylline and dipyridamole. Med Hypotheses 2020; 143:110051. [PMID: 32650197 PMCID: PMC7330590 DOI: 10.1016/j.mehy.2020.110051] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 06/25/2020] [Indexed: 12/30/2022]
Abstract
Counterproductive lung inflammation and dysregulated thrombosis contribute importantly to the lethality of advanced COVID-19. Adenosine A2A receptors (A2AR), expressed by a wide range of immune cells, as well as endothelial cells and platelets, exert cAMP-mediated anti-inflammatory and anti-thrombotic effects that potentially could be highly protective in this regard. The venerable drug pentoxifylline (PTX) exerts both anti-inflammatory and antithrombotic effects that reflect its ability to boost the responsiveness of A2AR to extracellular adenosine. The platelet-stabilizing drug dipyridamole (DIP) blocks intracellular uptake of extracellularly-generated adenosine, thereby up-regulating A2AR signaling in a way that should be functionally complementary to the impact of PTX in that regard. Moreover, DIP has recently been reported to slow the cellular replication of SARS-CoV-2 in clinically feasible concentrations. Both PTX and DIP are reasonably safe, well-tolerated, widely available, and inexpensive drugs. When COVID-19 patients can be treated within several days of symptom onset, using PTX + DIP in conjunction with hydroxychloroquine (HCQ) and an antibiotic – azithromycin (AZM) or doxycycline – might be warranted. HCQ and AZM can suppress SARS-CoV-2 proliferation in vitro and may slow the cell-to-cell spread of the virus; a large case series evaluating this combination in early-stage patients reported an impressively low mortality rate. However, whereas HCQ and AZM can promote QT interval lengthening and may be contraindicated in more advanced COVID-19 entailing cardiac damage, doxycycline has no such effect and exerts a potentially beneficial anti-inflammatory action. In contrast to HCQ, we propose that the combination of PTX + DIP can be used in both early and advanced stages of COVID-19. Concurrent use of certain nutraceuticals – yeast beta-glucan, zinc, vitamin D, spirulina, phase 2 inducers, N-acetylcysteine, glucosamine, quercetin, and magnesium – might also improve therapeutic outcomes in COVID-19.
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17
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Jesenak M, Brndiarova M, Urbancikova I, Rennerova Z, Vojtkova J, Bobcakova A, Ostro R, Banovcin P. Immune Parameters and COVID-19 Infection - Associations With Clinical Severity and Disease Prognosis. Front Cell Infect Microbiol 2020; 10:364. [PMID: 32695683 PMCID: PMC7338601 DOI: 10.3389/fcimb.2020.00364] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 06/12/2020] [Indexed: 12/23/2022] Open
Abstract
Severe acute respiratory syndrome caused by a novel 2019 coronavirus (SARS-CoV2) represents one of the most studied infectious diseases of today. The number of scientific reports and publications increases exponentially day by day. While the majority of infected subjects are asymptomatic or show mild symptoms, there is an important proportion of patients who requires hospitalization and, sometimes, intensive care. Immune response to novel coronavirus is complex, involves both innate and adaptive immunity, and is biphasic. Significant differences were observed when comparing severe and non-severe patients. Analysis of the reported results from clinical trials clearly show an involvement of specific cellular immunity (predominantly leucopenia, decreased counts of CD3+, CD4+, and CD8+ T lymphocytes, changes of T cell compartment) and the so-called cytokine storm, which is associated with worsening of symptoms and the promotion of lung damage. An interesting finding regarding eosinopenia that can have both diagnostic and prognostic value is reported by some authors. Examination of selected immune parameters could help to identify severe patients with the risk of unfavorable course of the disease, predict the prognosis and recognize improvement in the clinical status. Moreover, detailed analysis of the immune changes could help to select novel prospective therapeutic strategies.
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Affiliation(s)
- Milos Jesenak
- Department of Pediatrics, Jessenius Faculty of Medicine, Comenius University in Bratislava, University Hospital in Martin, Martin, Slovakia
- Department of Pulmonology and Phthisiology, Jessenius Faculty of Medicine, Comenius University in Bratislava, University Hospital in Martin, Martin, Slovakia
- Department of Clinical Immunology and Allergology, University Hospital in Martin, Martin, Slovakia
| | - Miroslava Brndiarova
- Department of Pediatrics, Jessenius Faculty of Medicine, Comenius University in Bratislava, University Hospital in Martin, Martin, Slovakia
| | - Ingrid Urbancikova
- Department of Pediatrics, Faculty of Medicine, Children Faculty Hospital, P. J. Safarik University, Kosice, Slovakia
- Department of Pediatric Infectology, Faculty of Medicine, Children Faculty Hospital, P. J. Safarik University, Kosice, Slovakia
| | - Zuzana Rennerova
- Pneumo-Alergo Centre Ltd., Falck Healthcare Group, Bratislava, Slovakia
- Department of Pediatric Pulmonology and Phthisiology, Faculty of Medicine, National Institute of Children Diseases, Slovak Medical University, Bratislava, Slovakia
| | - Jarmila Vojtkova
- Department of Pediatrics, Jessenius Faculty of Medicine, Comenius University in Bratislava, University Hospital in Martin, Martin, Slovakia
| | - Anna Bobcakova
- Department of Pulmonology and Phthisiology, Jessenius Faculty of Medicine, Comenius University in Bratislava, University Hospital in Martin, Martin, Slovakia
| | - Robert Ostro
- Department of Pediatrics, Faculty of Medicine, Children Faculty Hospital, P. J. Safarik University, Kosice, Slovakia
| | - Peter Banovcin
- Department of Pediatrics, Jessenius Faculty of Medicine, Comenius University in Bratislava, University Hospital in Martin, Martin, Slovakia
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18
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Abo Ghanima MM, Abd El-Aziz AH, Noreldin AE, Atta MS, Mousa SA, El-Far AH. β-glucan administration improves growth performance and gut health in New Zealand White and APRI rabbits with different breed responses. PLoS One 2020; 15:e0234076. [PMID: 32520965 PMCID: PMC7286524 DOI: 10.1371/journal.pone.0234076] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Accepted: 05/18/2020] [Indexed: 12/16/2022] Open
Abstract
This study investigated the effects of oral administration of β-glucan 1,3 (pharmaceutical grade 10%) on growth performance and carcass traits in two breeds of weanling rabbits adapted to survive in Egypt, New Zealand White (NZW) and Animal Production Research Institute (APRI) rabbits, with special attention to relative mRNA expression of interleukins and antioxidant enzyme genes, biochemical, and histological alterations. Oral administration of β-glucan with doses 0.25 and 0.5 ml per one-liter of drinking water significantly accelerated body weight gain (BWG) in both rabbits’ breeds, reduced total feed consumption (FC), and reduced feed conversion ratio (FCR), especially the 0.5 ml per one-liter dose in both rabbit breeds. There are remarkable differences in all the growth performance traits due to breed effect. The interaction effect between β-glucan and breed significantly improved BWG, FC, and FCR. There were non-significant differences in all carcass traits studied due to oral administration of β-glucan with both doses, except in dressing percentages. The highest of the dressing percentages were observed at doses 0.25 ml per one-liter (51%) and 0.5 ml per one-liter (52%) compared with control (50%). Our findings show significant variations in the final BW, total daily gain, feed consumption, and total feed conversion ratio between NZW and APRI rabbits. Absence of significant differences in the hot carcass weight and dressing percentage between the genetic groups had been reported in this study. Supplementing NZW and APRI rabbits with β-glucan increased blood total protein and globulin. The duodenal villi dimensions, splenic lymphoid diameter, muscular fiber diameter, and muscular glycogen areas were significantly increased by β-glucan administration. Expression of intestinal interleukin-18 (IL-18) in NZW rabbits treated with 0.25 and 0.5 doses of β-glucan was significantly upregulated and enhanced the immune response. β-glucan upregulated the expression of intestinal occludin mRNA particularly at dose 0.5 β-glucan as well as upregulated intestinal superoxide dismutase 1 (SOD1) and glutathione peroxidase 1 (GPx1), which modulates anti-inflammatory and antioxidant properties. In conclusion, oral administration of β-glucan at a dose of 0.25 or 0.5 ml per one-liter drinking water provided beneficial effects in the growth performance and health status of rabbits.
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Affiliation(s)
- Mahmoud M. Abo Ghanima
- Department of Animal Husbandry and Animal Wealth Development, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Ayman H. Abd El-Aziz
- Department of Animal Husbandry and Animal Wealth Development, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Ahmed E. Noreldin
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Mustafa S. Atta
- Department of Physiology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Shaker A. Mousa
- Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, Rensselaer, NY, United States of America
| | - Ali H. El-Far
- Department of Biochemistry, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
- * E-mail:
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19
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Kostakoglu U, Topcu A, Atak M, Tumkaya L, Mercantepe T, Uydu HA. The protective effects of angiotensin-converting enzyme inhibitor against cecal ligation and puncture-induced sepsis via oxidative stress and inflammation. Life Sci 2019; 241:117051. [PMID: 31733315 DOI: 10.1016/j.lfs.2019.117051] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 11/06/2019] [Accepted: 11/07/2019] [Indexed: 12/16/2022]
Abstract
AIMS Sepsis is a severe public health problem affecting millions of individuals, with global mortality rates caused by lower respiratory tract infections are approximately 2.38 million people a year die from respiratory failure caused by infection. Although ACE is known to contribute to damage in septicemia, the pathophysiological mechanisms of sepsis remain unclear. While mortality can be significantly reduced through effective and sensitive antibiotic therapy, antibiotic resistance restricts the use of these drugs, and the investigation of novel agents and targets is therefore essential. Our aim was to determine whether Perindopril (PER) has anti-inflammatory and antioxidant capable of preventing these adverse conditions resulting in injury in previous studies. MAIN METHODS Sprague Dawley rats were randomly assigned into the control group, received oral saline solution alone for four days. the cecal ligation and puncture (CLP) group, underwent only cecal ligation and puncture induced sepsis, while the CLP + PER (2 mg/kg) underwent cecal ligation and puncture-induced sepsis together with oral administration of 2 mg/kg PER for four days before induction of sepsis. KEY FINDINGS Malondialdehyde (MDA), tumor necrosis factor-alpha (TNF-α), Caspase-3 and nuclear factor kappa B (NF-kβ/p65) levels increased in the CLP group. On the other hand, PER (2 mg/kg) oral administration to septic rats decreased MDA, TNF-α and increase glutathione (GSH) in the lung tissue. In addition, PER administration also decreased the lung tissue NF-κB and Caspase-3 immunopositivity against sepsis. SIGNIFICANCE PER treatment may represent a promising means of preventing sepsis-induced lung injury via antioxidant and anti-inflammation effects.
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Affiliation(s)
- Ugur Kostakoglu
- Department of Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Recep Tayyip Erdogan University, 53100, Rize, Turkey.
| | - Atilla Topcu
- Department of Pharmacology, Recep Tayyip Erdogan University, Faculty of Medicine, 53100, Rize, Turkey
| | - Mehtap Atak
- Department of Medical Biochemistry, Faculty of Medicine, Recep Tayyip Erdogan University, 53100, Rize, Turkey
| | - Levent Tumkaya
- Department of Histology and Embryology, Faculty of Medicine, Recep Tayyip Erdogan University, 53100, Rize, Turkey
| | - Tolga Mercantepe
- Department of Histology and Embryology, Faculty of Medicine, Recep Tayyip Erdogan University, 53100, Rize, Turkey
| | - Huseyin Avni Uydu
- Department of Medical Biochemistry, Faculty of Medicine, Recep Tayyip Erdogan University, 53100, Rize, Turkey
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20
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Jahanian E, Mahdavi AH, Asgary S, Jahanian R, Tajadini MH. Effect of dietary supplementation of mannanoligosaccharides on hepatic gene expressions and humoral and cellular immune responses in aflatoxin-contaminated broiler chicks. Prev Vet Med 2019; 168:9-18. [PMID: 31097128 DOI: 10.1016/j.prevetmed.2019.04.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 03/16/2019] [Accepted: 04/13/2019] [Indexed: 01/14/2023]
Abstract
The present study was conducted to investigate the effects of dietary supplementation of mannanoligosaccharides (MOS) on expression of hepatic immunological genes and immune responses in aflatoxin-contaminated broiler chicks. A total of 336 seven-day-old Ross broiler chicks were randomly allotted to 7 experimental treatments with 4 replicates and 12 birds per replicate. Experimental treatments consisted of 2 aflatoxin levels (0.5 and 2 ppm) and 3 supplemental MOS levels (0, 1 and 2 g/kg) as a 2 × 3 factorial arrangement in comparison with a control group (unchallenged group). The chicks were challenged with a mix of aflatoxins during 7-28 d of age. Results showed that aflatoxin challenge resulted in the lower antibody titers against infectious bronchitis (IBV) and bursal (IBD) diseases viruses. In addition, aflatoxin-contaminated birds had a lower (P < 0.0001) lymphocyte percentage and a decline in (P < 0.01) interleukin-2 (IL-2) mRNA abundance. Likewise, heterophil proportion, heterophil to lymphocyte ratio and gene expressions of hepatic interleukin-6 (IL-6) and C reactive protein (CRP) were raised (P < 0.001) by increasing dietary aflatoxin level. Dietary inclusion of MOS increased (P < 0.05) antibody titers against IBV, IBD and Newcastle disease virus. Lymphocyte proportion and hepatic IL-2 gene expression were greater (P < 0.0001) in MOS-supplemented birds. Furthermore, supplemental MOS decreased hepatic IL-6 and CRP abundances. Additionally, inclusion of 2 g/kg MOS resulted in the upregulation (P < 0.01) of hepatic IL-2 gene expression in birds contaminated with 0.5 ppm aflatoxin. The present results indicate that supplemental MOS could improve cellular immunity via the upregulation of hepatic IL-2 gene expression in birds challenged with aflatoxins.
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Affiliation(s)
- E Jahanian
- Department of Animal Sciences, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| | - A H Mahdavi
- Department of Animal Sciences, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - S Asgary
- Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - R Jahanian
- Department of Animal Sciences, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - M H Tajadini
- Applied Physiology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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Cinar I, Sirin B, Aydin P, Toktay E, Cadirci E, Halici I, Halici Z. Ameliorative effect of gossypin against acute lung injury in experimental sepsis model of rats. Life Sci 2019; 221:327-334. [DOI: 10.1016/j.lfs.2019.02.039] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 02/08/2019] [Accepted: 02/18/2019] [Indexed: 02/06/2023]
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Yasin H, Zahoor M, Yousaf Z, Aftab A, Saleh N, Riaz N, Shamsheer B. Ethnopharmacological exploration of medicinal mushroom from Pakistan. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 54:43-55. [PMID: 30668382 DOI: 10.1016/j.phymed.2018.09.196] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 09/07/2018] [Accepted: 09/17/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND The chief aim of this study was to enlist the ethnopharmacological aspect of mushrooms from four Provinces of Pakistan. Due to the seasonal variation and extreme geographical conditions, Pakistan has great mushroom diversity. Mushrooms have been used by the indigenous people for the treatment of different ailments in many regions of Pakistan. They still depend on the mushrooms for treatment of various ailments. Moreover, mushrooms are used as first aid to treat cold, cough, influenza, asthma, cancer, gastric and hepatic disorders. Traditional uses of medicinal mushrooms lead to the discovery of alternative source of synthetic medicines. This is basically the first quantitative ethnopharmcological documentation of medicinal mushrooms from Pakistan. MATERIALS AND METHOD Ethnopharmacological information was collected from the 950 informants including male and female. The informative data was based on semi-structured interviews, group discussions, and field visits. Data was analyzed by applying different quantitative indices such as informant consent factor (ICF), Use value (UV), Relative Frequency of Citation (RFC), the Fidelity level (FL) and Jaccard Index (JI). RESULT Almost 50 mushrooms belonging to 24 families were reported. Most-frequently cited families were Agaricaceae (13 species) and Morchellaceae (5 species). Extract was the common mode of preparation reported (63.33%), followed by Powder (36.67%). Mostly these medicinal mushrooms were present as wild (62.90%), followed by cultivated (37.10%). Among all 11.75% mushrooms were toxic and inedible, 75% were nontoxic, whereas the remaining 13.46% may be toxic or nontoxic because of their dual attitude. New medicinal uses of 23 mushrooms were explored in this study. CONCLUSION This ethnopharmacological documentation revealed that the mushrooms are still used by natives of rural area in their day-to-day lives. This study provides the basis for the conservation of mushrooms. Mushrooms with high ICF, UV and FL were further used for phytochemical and pharmacological studies. This documentation is baseline information which can be used to develop new mushroom-based medicines.
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Affiliation(s)
- Hamna Yasin
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - Maria Zahoor
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - Zubaida Yousaf
- Department of Botany, Lahore College for Women University, Lahore, Pakistan.
| | - Arusa Aftab
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - Nadia Saleh
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - Nadia Riaz
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - Bushra Shamsheer
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
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Domínguez-Andrés J, Novakovic B, Li Y, Scicluna BP, Gresnigt MS, Arts RJW, Oosting M, Moorlag SJCFM, Groh LA, Zwaag J, Koch RM, Ter Horst R, Joosten LAB, Wijmenga C, Michelucci A, van der Poll T, Kox M, Pickkers P, Kumar V, Stunnenberg H, Netea MG. The Itaconate Pathway Is a Central Regulatory Node Linking Innate Immune Tolerance and Trained Immunity. Cell Metab 2019; 29:211-220.e5. [PMID: 30293776 DOI: 10.1016/j.cmet.2018.09.003] [Citation(s) in RCA: 213] [Impact Index Per Article: 42.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 07/18/2018] [Accepted: 09/03/2018] [Indexed: 01/13/2023]
Abstract
Sepsis involves simultaneous hyperactivation of the immune system and immune paralysis, leading to both organ dysfunction and increased susceptibility to secondary infections. Acute activation of myeloid cells induced itaconate synthesis, which subsequently mediated innate immune tolerance in human monocytes. In contrast, induction of trained immunity by β-glucan counteracted tolerance induced in a model of human endotoxemia by inhibiting the expression of immune-responsive gene 1 (IRG1), the enzyme that controls itaconate synthesis. β-Glucan also increased the expression of succinate dehydrogenase (SDH), contributing to the integrity of the TCA cycle and leading to an enhanced innate immune response after secondary stimulation. The role of itaconate was further validated by IRG1 and SDH polymorphisms that modulate induction of tolerance and trained immunity in human monocytes. These data demonstrate the importance of the IRG1-itaconate-SDH axis in the development of immune tolerance and training and highlight the potential of β-glucan-induced trained immunity to revert immunoparalysis.
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Affiliation(s)
- Jorge Domínguez-Andrés
- Department of Internal Medicine (463) and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre, Geert Grooteplein 8, Nijmegen 6500 HB, the Netherlands.
| | - Boris Novakovic
- Department of Molecular Biology, Faculty of Science, Radboud University, Nijmegen 6525 GA, the Netherlands
| | - Yang Li
- Department of Genetics, University Medical Center Groningen, Groningen, the Netherlands
| | - Brendon P Scicluna
- Center of Experimental & Molecular Medicine, Division of Infectious Diseases, Amsterdam Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Mark S Gresnigt
- Department of Internal Medicine (463) and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre, Geert Grooteplein 8, Nijmegen 6500 HB, the Netherlands; Department of Microbial Pathogenicity Mechanisms, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute, Jena, Germany
| | - Rob J W Arts
- Department of Internal Medicine (463) and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre, Geert Grooteplein 8, Nijmegen 6500 HB, the Netherlands
| | - Marije Oosting
- Department of Internal Medicine (463) and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre, Geert Grooteplein 8, Nijmegen 6500 HB, the Netherlands
| | - Simone J C F M Moorlag
- Department of Internal Medicine (463) and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre, Geert Grooteplein 8, Nijmegen 6500 HB, the Netherlands
| | - Laszlo A Groh
- Department of Internal Medicine (463) and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre, Geert Grooteplein 8, Nijmegen 6500 HB, the Netherlands
| | - Jelle Zwaag
- Department of Intensive Care and Radboud Center for Infectious diseases (RCI), Radboud University Nijmegen Medical Centre, Geert Grooteplein 8, Nijmegen 6500 HB, the Netherlands
| | - Rebecca M Koch
- Department of Intensive Care and Radboud Center for Infectious diseases (RCI), Radboud University Nijmegen Medical Centre, Geert Grooteplein 8, Nijmegen 6500 HB, the Netherlands
| | - Rob Ter Horst
- Department of Internal Medicine (463) and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre, Geert Grooteplein 8, Nijmegen 6500 HB, the Netherlands
| | - Leo A B Joosten
- Department of Internal Medicine (463) and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre, Geert Grooteplein 8, Nijmegen 6500 HB, the Netherlands
| | - Cisca Wijmenga
- Department of Genetics, University Medical Center Groningen, Groningen, the Netherlands
| | - Alessandro Michelucci
- NORLUX Neuro-Oncology Laboratory, Department of Oncology, Luxembourg Institute of Health, Luxembourg, Luxembourg; Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Esch-Belval, Luxembourg
| | - Tom van der Poll
- Center of Experimental & Molecular Medicine, Division of Infectious Diseases, Amsterdam Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Matthijs Kox
- Department of Intensive Care and Radboud Center for Infectious diseases (RCI), Radboud University Nijmegen Medical Centre, Geert Grooteplein 8, Nijmegen 6500 HB, the Netherlands
| | - Peter Pickkers
- Department of Intensive Care and Radboud Center for Infectious diseases (RCI), Radboud University Nijmegen Medical Centre, Geert Grooteplein 8, Nijmegen 6500 HB, the Netherlands
| | - Vinod Kumar
- Department of Internal Medicine (463) and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre, Geert Grooteplein 8, Nijmegen 6500 HB, the Netherlands; Department of Genetics, University Medical Center Groningen, Groningen, the Netherlands
| | - Henk Stunnenberg
- Department of Molecular Biology, Faculty of Science, Radboud University, Nijmegen 6525 GA, the Netherlands
| | - Mihai G Netea
- Department of Internal Medicine (463) and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre, Geert Grooteplein 8, Nijmegen 6500 HB, the Netherlands; Department for Genomics & Immunoregulation, Life and Medical Sciences Institute (LIMES), University of Bonn, Bonn, Germany; Human Genomics Laboratory, Craiova University of Medicine and Pharmacy, Craiova, Romania
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Quintin J. Fungal mediated innate immune memory, what have we learned? Semin Cell Dev Biol 2018; 89:71-77. [PMID: 29842944 DOI: 10.1016/j.semcdb.2018.05.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 05/23/2018] [Accepted: 05/25/2018] [Indexed: 10/01/2022]
Abstract
The binary classification of mammalian immune memory is now obsolete. Innate immune cells carry memory characteristics. The overall capacity of innate immune cells to remember and alter their responses is referred as innate immune memory and the induction of a non-specific memory resulting in an enhanced immune status is termed "trained immunity". Historically, trained immunity was first described as triggered by the human fungal pathogen Candida albicans. Since, numerous studies have accumulated and deciphered the main characteristics of trained immunity mediated by fungi and fungal components. This review aims at presenting the newly described aspect of memory in innate immunity with an emphasis on the historically fungal mediated one, covering the known molecular mechanisms associated with training. In addition, the review uncovers the numerous non-specific effect that β-glucans trigger in the context of infectious diseases and septicaemia, inflammatory diseases and cancer.
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Affiliation(s)
- Jessica Quintin
- Immunology of Fungal Infections, Department of Mycology, Institut Pasteur, 25, rue du Docteur Roux, 75015, Paris, France.
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25
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Jupp PW. A complex systems approach to cancer prevention. Med Hypotheses 2018; 112:18-23. [PMID: 29447929 DOI: 10.1016/j.mehy.2018.01.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 12/07/2017] [Accepted: 01/14/2018] [Indexed: 11/30/2022]
Abstract
Cancer incidence continues to be a major health problem possibly because cancer is a complex system comprising many agents that interact in a non-linear manner resulting in many possible outcomes. The degree of complexity of a cancer system could be vast involving multiple endogenous and exogenous agents interacting with the over 10 trillion cells comprising the body. It is hypothesized that the practical management of this complexity may be a key to cancer prevention and possibly treatment. But the management and resolution of such an immensely complex system is difficult and may require a multidisciplinary approach including physics, biology, biochemistry and medical science. Research such as in systems biology involving large data sets may offer resolution in time, but the scale of the task is daunting. In evaluating the hypothesis, this paper proposes a method of resolution of the complex cancer system through a proxy in the form of the vital body system, energy balance, involved in several cancer processes. Although I suggest that the energy balance system is itself complex, it may permit access to factors that may be used in limiting cancer initiation. Meta-analysis related to factors of blood sugar, inflammation, stress and immune response reveal that they could be likely candidates for management. Analysis also reveals certain devices that may give practical effect to these management options. Due to the inherent complexity of a cancer system, multiple devices may need to be applied in a combination. The analysis suggests that the low-risk and low-cost devices metformin, vitamin D and vitamin C, may prove to be suitable for use as a practical cancer prevention strategy. If the presented hypothesis is correct, a practical method for prevention or management of cancer may be possible. A trial to test the hypothesis is proposed.
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Affiliation(s)
- P W Jupp
- Fenner School of Environment and Society, College of Science, The Australian National University, B141 Linnaeus way, Acton, ACT 2601, Australia.
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Gong Y, Yu Z, Gao Y, Deng L, Wang M, Chen Y, Li J, Cheng B. FABP4 inhibitors suppress inflammation and oxidative stress in murine and cell models of acute lung injury. Biochem Biophys Res Commun 2018; 496:1115-1121. [DOI: 10.1016/j.bbrc.2018.01.150] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 01/24/2018] [Indexed: 12/21/2022]
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Qi Y, Hu X, Cui J, Chen J, Wu Q, Sun X, Shi Y. Combined use of insoluble β-glucan from the cell wall of Candida albicans and cyclophosphamide: Validation in S180 tumor-bearing mice. Biomed Pharmacother 2017; 97:1366-1372. [PMID: 29156526 DOI: 10.1016/j.biopha.2017.11.049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 10/28/2017] [Accepted: 11/07/2017] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Cyclophosphamide (CTX) is a widely used antitumor drug that can suppress the immune system. The effects of regulating immune response and antitumor of β-glucan from the cell wall of Candida albicans (CAIBG) have been confirmed. However, the effects of the combined use of CAIBG and CTX remain unclear and warrant further investigation. METHODS S180 tumor-bearing models were developed for CAIBG (100 mg/10 mL/kg) and CTX (30 mg/10 mL/kg) intervention. The weights of the body, tumor spleen, and Thymus were recorded to calculate the index of the spleen and Thymus. The spleen and Thymus were observed by hematoxylin and eosin staining, whereas the expression of tumor necrosis factor (TNF)-α and interleukin (IL)-1β was determined by Western blot. The survival times of mice were followed and recorded for analysis. RESULTS CAIBG, CTX, and combined use of CAIBG and CTX could down-regulate the tumor growth and prolong the survival time. The spleen and Thymus index significantly increased in the CAIBG + CTX group than in the CTX group, but it was lower than that in the CAIBG group. Moreover, the Thymus index was significantly lower in the CAIBG + CTX group than in the CAIBG group. The lymphocytes of the spleen and Thymus decreased significantly in the CTX group but improved significantly in the CAIBG and CAIBG + CTX groups. The expression level of TNF-α and IL-1β in the CTX+CAIBG group increased significantly compared with that in the CTX group. The survival time of the CAIBG group and CAIBG + CTX group was significantly higher than that of the CTX group. CONCLUSIONS CAIBG has strong treatment potential in combating tumor growth and prolonging survival time of S180 tumor-bearing mice. Combined use of CAIBG and CTX can compensate the CTX-induced immunosuppression and provide antitumor effects. Future studies are necessary to elucidate the underlying mechanism.
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Affiliation(s)
- Yan Qi
- Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China; School of Medicine, Jinggangshan University, Ji An, China
| | - Xin Hu
- Ji An Central Hospital, Ji An, China
| | - Jin Cui
- Kun Ming Medical University, China
| | - Jing Chen
- Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Qian Wu
- Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xiao Sun
- Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Yan Shi
- Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China.
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Fuller R, Moore MV, Lewith G, Stuart BL, Ormiston RV, Fisk HL, Noakes PS, Calder PC. Yeast-derived β-1,3/1,6 glucan, upper respiratory tract infection and innate immunity in older adults. Nutrition 2017; 39-40:30-35. [PMID: 28606567 DOI: 10.1016/j.nut.2017.03.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 03/07/2017] [Accepted: 03/10/2017] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The aims of this study were to test whether yeast-derived β-1,3/1,6 glucan can prevent the occurrence or reduce the severity of upper respiratory tract infection (URTI) and modulate innate immune responses during winter months in community-dwelling older adults. METHODS This was a double-blind placebo-controlled trial of community-dwelling adults ages 50 to 70 y randomized to once-daily β-1,3/1,6 glucan (Wellmune 250 mg/d; n = 50) or identical placebo capsule (n = 50) over 90 d during winter. URTI episodes were medically confirmed. Symptom severity was recorded via self-reported daily Wisconsin Upper Respiratory Tract Infection Score 21. Blood and saliva samples were collected at days 0, 45, and 90 for measurements of innate immune parameters. RESULTS Forty-nine participants completed the trial in each group. Supplementation was well tolerated. Forty-five URTIs were confirmed: 28 in the placebo group and 17 in the Wellmune group (odds ratio, 0.55; 95% confidence interval, 0.24-1.26; P = 0.149). There was a strong trend for Wellmune to decrease the number of symptom days (P = 0.067). Symptom severity did not differ significantly between groups. Compared with the placebo group, lipopolysaccharide-stimulated blood from participants in the Wellmune group showed an increase in interferon-γ concentration from baseline at day 45 (P = 0.016) and smaller decreases in monokine induced by interferon-γ concentration from baseline at days 45 and 90 (P = 0.032 and 0.046, respectively). No difference was seen in serum or nonstimulated blood cytokines and chemokines or in salivary immunoglobulin A. CONCLUSION Daily oral β-1,3/1,6 glucan may protect against URTIs and reduce the duration of URTI symptoms in older individuals once infected. This may be linked to effects on innate immune function. Larger studies are needed to confirm the benefits of β-1,3/1,6 glucan on URTIs in this older population.
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Affiliation(s)
- Richard Fuller
- Primary Care and Population Sciences Academic Unit, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Michael V Moore
- Primary Care and Population Sciences Academic Unit, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - George Lewith
- Primary Care and Population Sciences Academic Unit, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Beth L Stuart
- Primary Care and Population Sciences Academic Unit, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Rory V Ormiston
- Human Development and Health Academic Unit, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Helena L Fisk
- Human Development and Health Academic Unit, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Paul S Noakes
- Human Development and Health Academic Unit, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Philip C Calder
- Human Development and Health Academic Unit, Faculty of Medicine, University of Southampton, Southampton, United Kingdom; NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, United Kingdom.
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Vetvicka V. Comparison of Immunological Effects of Commercially Available β-Glucans: Part III. ACTA ACUST UNITED AC 2016. [DOI: 10.15406/icpjl.2016.02.00046] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Kim YR, Hwang J, Koh HJ, Jang K, Lee JD, Choi J, Yang CS. The targeted delivery of the c-Src peptide complexed with schizophyllan to macrophages inhibits polymicrobial sepsis and ulcerative colitis in mice. Biomaterials 2016; 89:1-13. [DOI: 10.1016/j.biomaterials.2016.02.035] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Revised: 02/20/2016] [Accepted: 02/23/2016] [Indexed: 02/07/2023]
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Pardo-Ruiz Z, Menéndez-Sardiñas DE, Pacios-Michelena A, Gabilondo-Ramírez T, Montero-Alejo V, Perdomo-Morales R. Soluble β-(1,3)-glucans enhance LPS-induced response in the monocyte activation test, but inhibit LPS-mediated febrile response in rabbits: Implications for pyrogenicity tests. Eur J Pharm Sci 2015; 81:18-26. [PMID: 26428698 DOI: 10.1016/j.ejps.2015.09.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 08/14/2015] [Accepted: 09/28/2015] [Indexed: 02/02/2023]
Abstract
In the present study, we aimed to determine the influence of β-(1,3)-d-glucans on the LPS-induced pro-inflammatory cytokine response in the Monocyte Activation Test (MAT) for pyrogens, and on the LPS-induced febrile response in the Rabbit Pyrogen Test (RPT), thus evaluating the resulting effect in the outcome of each test. It was found that β-(1,3)-d-glucans elicited the production of pro-inflammatory cytokines IL-1β, IL-6 and TNF-α, also known as endogenous pyrogens, but not enough to classify them as pyrogenic according to MAT. The same β-(1,3)-d-glucans samples were non-pyrogenic by RPT. However, β-(1,3)-d-glucans significantly enhanced the LPS-induced pro-inflammatory cytokines response in MAT, insomuch that samples containing non-pyrogenic concentrations of LPS become pyrogenic. On the other hand, β-(1,3)-d-glucans had no effect on sub-pyrogenic LPS doses in the RPT, but surprisingly, inhibited the LPS-induced febrile response of pyrogenic LPS concentrations. Thus, while β-(1,3)-d-glucans could mask the LPS pyrogenic activity in the RPT, they exerted an overstimulation of pro-inflammatory cytokines in the MAT. Hence, MAT provides higher safety since it evidences an unwanted biological response, which is not completely controlled and is overlooked by the RPT.
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Affiliation(s)
- Zenia Pardo-Ruiz
- Biochemistry Department, Center for Pharmaceutical Research and Development, Ave. 26 No. 1605 e/ Ave. 51 y Boyeros, Plaza, CP 10600 Havana, Cuba
| | - Dalia E Menéndez-Sardiñas
- Biological Control Laboratory, Center for Pharmaceutical Research and Development, 17 St. No. 6208 e/ 62 y 64, Playa, CP 11300 Havana, Cuba
| | - Anabel Pacios-Michelena
- Biochemistry Department, Center for Pharmaceutical Research and Development, Ave. 26 No. 1605 e/ Ave. 51 y Boyeros, Plaza, CP 10600 Havana, Cuba
| | - Tatiana Gabilondo-Ramírez
- Biological Control Laboratory, Center for Pharmaceutical Research and Development, 17 St. No. 6208 e/ 62 y 64, Playa, CP 11300 Havana, Cuba
| | - Vivian Montero-Alejo
- Biochemistry Department, Center for Pharmaceutical Research and Development, Ave. 26 No. 1605 e/ Ave. 51 y Boyeros, Plaza, CP 10600 Havana, Cuba
| | - Rolando Perdomo-Morales
- Biochemistry Department, Center for Pharmaceutical Research and Development, Ave. 26 No. 1605 e/ Ave. 51 y Boyeros, Plaza, CP 10600 Havana, Cuba.
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Schwartz B, Hadar Y. Possible mechanisms of action of mushroom-derived glucans on inflammatory bowel disease and associated cancer. ANNALS OF TRANSLATIONAL MEDICINE 2014; 2:19. [PMID: 25332995 DOI: 10.3978/j.issn.2305-5839.2014.01.03] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Accepted: 02/20/2014] [Indexed: 12/18/2022]
Abstract
Since ancient times, medicinal mushrooms have been traditionally used as a health food or supplement for the prevention and cure of a range of health-statuses or diseases, such as overt inflammation, atherosclerosis, cancer, hypertension, diabetes and others. We concentrate in this review on the effect and putative mechanism of action of glucans harvested from fungi on inflammatory bowel disease (IBD) and colitis associated cancer. Many scientists including our own group have examined the immunomodulating effect of isolated polysaccharides-glucans in general and specifically in inflammation associated with cancer. In this manuscript we reviewed the sources, the chemical composition and medicinal properties of polysaccharides extracted from edible mushrooms. In addition we brought insights into their putative mechanisms of action behind each health-promoting activity of these interesting biomolecules. The preventive and therapeutic effects of the medicinal mushrooms and their components have been well documented in mouse and rat model systems and in cancer cell lines being the most striking effects reported to their anti-inflammatory and antitumor effect. Their anticancer effects were demonstrated mainly in in vitro and in vivo experimental systems but a very limited number of studies have been conducted in human populations. We can summarize that oral consumption of several mushrooms glucans is an efficient treatment to prevent colitis-associated dysplasias through modulation of mucosal inflammation and cell proliferation. Identifying new food-derived isolates and understanding their mechanisms of action are the main challenges in using mushrooms glucans for therapeutic purposes in the field of IBD and associated cancer. Only an in-depth understanding of the mechanism of action and cross-talk between the inflammatory cell, epithelial cell and fungi derived glucans on which we have a based structural knowledge will lead to well designed intervention clinical human studies to test the efficacy of these molecules on intestinal inflammation and colitis associated cancer.
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Affiliation(s)
- Betty Schwartz
- 1 Institute of Biochemistry, Food Science and Nutrition, 2 Department of Plant Pathology and Microbiology, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Yitzhak Hadar
- 1 Institute of Biochemistry, Food Science and Nutrition, 2 Department of Plant Pathology and Microbiology, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
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Vannucci L, Krizan J, Sima P, Stakheev D, Caja F, Rajsiglova L, Horak V, Saieh M. Immunostimulatory properties and antitumor activities of glucans (Review). Int J Oncol 2013; 43:357-64. [PMID: 23739801 PMCID: PMC3775562 DOI: 10.3892/ijo.2013.1974] [Citation(s) in RCA: 127] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Accepted: 05/17/2013] [Indexed: 12/25/2022] Open
Abstract
New foods and natural biological modulators have recently become of scientific interest in the investigation of the value of traditional medical therapeutics. Glucans have an important part in this renewed interest. These fungal wall components are claimed to be useful for various medical purposes and they are obtained from medicinal mushrooms commonly used in traditional Oriental medicine. The immunotherapeutic properties of fungi extracts have been reported, including the enhancement of anticancer immunity responses. These properties are principally related to the stimulation of cells of the innate immune system. The discovery of specific receptors for glucans on dendritic cells (dectin-1), as well as interactions with other receptors, mainly expressed by innate immune cells (e.g., Toll-like receptors, complement receptor-3), have raised new attention toward these products as suitable therapeutic agents. We briefly review the characteristics of the glucans from mycelial walls as modulators of the immunity and their possible use as antitumor treatments.
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Affiliation(s)
- Luca Vannucci
- Laboratory of Immunotherapy, Department of Immunology and Gnotobiology, Institute of Microbiology, Academy of Sciences of Czech Republic, v.v.i., 142 20 Prague 4, Czech Republic.
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Talbott SM, Talbott JA. Baker's yeast beta-glucan supplement reduces upper respiratory symptoms and improves mood state in stressed women. J Am Coll Nutr 2013; 31:295-300. [PMID: 23378458 DOI: 10.1080/07315724.2012.10720441] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
OBJECTIVE Several studies have shown a baker's yeast beta-1,3/1,6-d-glucan, extracted from Saccharomyces cerevisiae, is effective in reducing the incidence of cold and flu symptoms. This study evaluated the effect of a specific beta-glucan supplement (Wellmune) on upper respiratory tract symptoms and psychological well-being in women with moderate levels of psychological stress. METHODS Healthy women (38 ± 12 years old) prescreened for moderate levels of psychological stress, self-administered a placebo (n = 38) or 250 mg of Wellmune (n = 39) daily for 12 weeks. We used the Profile of Mood States (POMS) psychological survey to assess changes in mental/physical energy levels (vigor) and overall well-being (global mood state). A quantitative health perception log was used to track upper respiratory symptoms. RESULTS Subjects in the Wellmune group reported fewer upper respiratory symptoms compared to placebo (10% vs 29%), better overall well-being (global mood state: 99 ± 19 vs 108 ± 23, p < 0.05), and superior mental/physical energy levels (vigor: 19.9 ± 4.7 vs 15.8 ± 6.3, p < 0.05). CONCLUSIONS These data show that daily dietary supplementation with Wellmune reduces upper respiratory symptoms and improves mood state in stressed subjects, and thus it may be a useful approach for maintaining immune protection against daily stressors.
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Choi JA, Oh TH, Choi JS, Chang DJ, Joo CK. Impact of β-1,3-glucan Isolated fromEuglena gracilison Corneal Epithelial Cell Migration and on Wound Healing in a Rat Alkali Burn Model. Curr Eye Res 2013; 38:1207-13. [DOI: 10.3109/02713683.2013.811262] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Fan W, Nakazawa K, Abe S, Inoue M, Kitagawa M, Nagahara N, Makita K. Inhaled aerosolized insulin ameliorates hyperglycemia-induced inflammatory responses in the lungs in an experimental model of acute lung injury. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2013; 17:R83. [PMID: 23622115 PMCID: PMC4057452 DOI: 10.1186/cc12697] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Accepted: 04/28/2013] [Indexed: 01/04/2023]
Abstract
Introduction Previous studies have shown that patients with diabetes mellitus appear to have a lower prevalence of acute lung injury. We assumed that insulin prescribed to patients with diabetes has an anti-inflammatory property and pulmonary administration of insulin might exert beneficial effects much more than intravenous administration. Methods Twenty-eight mechanically ventilated rabbits underwent lung injury by saline lavage, and then the animals were allocated into a normoglycemia group (NG), a hyperglycemia group (HG), an HG treated with intravenous insulin (HG-VI) group or an HG treated with aerosolized insulin (HG-AI) group with continuous infusion of different fluid solutions and treatments: normal saline, 50% glucose, 50% glucose with intravenous insulin, or 50% glucose with inhaled aerosolized insulin, respectively. After four hours of treatment, the lungs and heart were excised en bloc, and then high-mobility group B1 concentration in bronchoalveolar lavage fluid, interleukin-8 and toll-like receptor 4 mRNA expression in bronchoalveolar lavage fluid cells, and lung myeloperoxidase activity were measured. Results Treatment with both aerosolized insulin and intravenous insulin attenuated toll-like receptor 4 mRNA expressions in the bronchoalveolar lavage fluid cells. Interleukin-8 and toll-like receptor 4 mRNA expression was significantly lower in the HG-AI group than in the HG-IV group. The lung myeloperoxidase activity in the normal healthy group showed significantly lower levels compared to the NG group but not different compared to those of the HG, HG-VI and HG-AI groups. Conclusions The results suggest that insulin attenuates inflammatory responses in the lungs augmented by hyperglycemia in acute lung injury and the insulin's efficacy may be better when administered by aerosol.
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Aguilar B, Solís J, Viveros JM, López Z, Knauth P. Characterization of Cell Wall Extracts fromSaccharomyces cerevisiaewith Immunological Activity. FOOD BIOTECHNOL 2012. [DOI: 10.1080/08905436.2012.723604] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Fuller R, Butt H, Noakes PS, Kenyon J, Yam TS, Calder PC. Influence of yeast-derived 1,3/1,6 glucopolysaccharide on circulating cytokines and chemokines with respect to upper respiratory tract infections. Nutrition 2012; 28:665-9. [DOI: 10.1016/j.nut.2011.11.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Revised: 11/10/2011] [Accepted: 11/11/2011] [Indexed: 10/28/2022]
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Bedirli N, Demirtas CY, Akkaya T, Salman B, Alper M, Bedirli A, Pasaoglu H. Volatile anesthetic preconditioning attenuated sepsis induced lung inflammation. J Surg Res 2012; 178:e17-23. [PMID: 22475355 DOI: 10.1016/j.jss.2011.12.037] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Revised: 12/16/2011] [Accepted: 12/19/2011] [Indexed: 12/16/2022]
Abstract
BACKGROUND This study aimed to evaluate the differential protective effects of isoflurane or sevoflurane on lung inflammation in a rat model of cecal ligation and puncture (CLP) induced sepsis. METHODS Seventy-two rats were assigned to control, sevoflurane, or isoflurane groups. At 2 and 4 h, tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), interleukin-1β (IL-1β), nitrate/nitrate levels (NO), total antioxidant capacity (TAC), and intercellular cell adhesion molecule-1 (ICAM-1) were determined. At 12 and 24 h, malondialdehyde (MDA), myeloperoxidase (MPO), and histologic changes were evaluated. Survival was monitored for 7 d after CLP. RESULTS Sevoflurane (75%) and isoflurane (63%) significantly improved survival rate compared with control rats (38%). When sevoflurane and isoflurane groups were compared, sevoflurane pretreatment showed significant decrease in NO at 2 h [1045 (803-1274)/1570 (1174-2239) and 4 h [817 (499-1171)/1493 (794-2080)]; increase in TAC at 4 h [580.0 (387-751)/320 (239-512)]; decrease in MDA at 12 h [2.5 (1.1-4.2)/5.4 (4-73)] and 24 h [10.8 (6.0-14.0)/15.9 (9-28)]; and decrease in MPO at 24 h [145.8 (81-260)/232 (148-346)]. The difference in the ICAM-1 expression of the isoflurane and sevoflurane groups was not significant at both measurement times. The architectural integrity of the alveoli was preserved in all the groups. The injury scores of the three groups at 12 and 24 h did not show any significant difference. CONCLUSIONS Both sevoflurane and isoflurane attenuated inflammatory response, lipid peroxidation, and oxidative stress. Furthermore, sevoflurane was more effective in modulating sepsis induced inflammatory response at the chosen concentration in sepsis model.
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Affiliation(s)
- Nurdan Bedirli
- Department of Anaesthesiology, Gazi University, Ankara, Turkey.
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Asano T, Tanaka KI, Suemasu S, Ishihara T, Tahara K, Suzuki T, Suzuki H, Fukudo S, Mizushima T. Effects of β-(1,3-1,6)-D-glucan on irritable bowel syndrome-related colonic hypersensitivity. Biochem Biophys Res Commun 2012; 420:444-9. [PMID: 22430139 DOI: 10.1016/j.bbrc.2012.03.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Accepted: 03/05/2012] [Indexed: 12/18/2022]
Abstract
Irritable bowel syndrome (IBS) is a gastrointestinal disorder characterized by chronic abdominal pain associated with altered bowel habits. Since the prevalence of IBS is very high and thus, involves elevated health-care costs, treatment of this condition by methods other than prescribed medicines could be beneficial. β-(1,3)-D-glucan with β-(1,6) branches (β-glucan) has been used as a nutritional supplement for many years. In this study, we examined the effect of β-glucan on fecal pellet output and visceral pain response in animal models of IBS. Oral administration of β-glucan suppressed the restraint stress- or drug-induced fecal pellet output. β-Glucan also suppressed the visceral pain response to colorectal distension. These results suggest that β-glucan could be beneficial for the treatment and prevention of IBS.
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Affiliation(s)
- Teita Asano
- Department of Analytical Chemistry, Faculty of Pharmacy, Keio University, Tokyo 105-8512, Japan
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Li H, Qian Z, Li J, Han X, Liu M. Effects of early administration of a novel anticholinergic drug on acute respiratory distress syndrome induced by sepsis. Med Sci Monit 2012; 17:BR319-325. [PMID: 22037734 PMCID: PMC3539499 DOI: 10.12659/msm.882041] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Background Acute respiratory distress syndrome (ARDS) is the inflammatory disorder of the lung most commonly caused by sepsis. It was hypothesized that treating the lung with penehyclidine hydrochloride (PHC), a new type of hyoscyamus drug, early in the development of sepsis could diminish the lung dysfunction. Material/Methods Sprague-Dawley rats were divided into 4 groups: 1) a control group; 2) a sham-operated group; 3) a cecal ligation and puncture (CLP) group; 4) a PHC-treated group. One hour after CLP surgery, rats were either untreated or treated with PHC via intraperitoneal injection. Lung wet/dry weight ratio, bronchoalveolar lavage fluid (BALF), serum tumor necrosis factor (TNF-α), interleukin 6 (IL-6), interleukin 10 (IL-10), total nitrite/nitrate (NOx), superoxide dismutase (SOD), malondialdehyde (MDA) in lung tissues, and pulmonary functions were examined 24 hour after surgery. Another 60 rats were randomly assigned to 4 equal groups to observe survival status 96 hours after surgery. Results Treatment of PHC markedly decreased TNF-α, IL-6, NOx, SOD, MDA content, protein concentration in BALF, and lung wet/dry weight ratio and enhanced SOD activity (p<0.05), which are indicative of PHC-induced suppression in the pathogenesis of ARDS caused by sepsis. In comparison to group CLP/saline, plasma IL-10 level markedly increased in group CLP/PHC. In PHC-treated groups, the administered PHC had a significant protective effect on the lung dysfunction induced by sepsis. Conclusions We conclude that administration of PHC at the time of a systemic insult can protect the lung from the damaging effects of sepsis.
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Affiliation(s)
- Hao Li
- Department of Hepatobiliary Surgery, Hunan Provincial People's Hospital, Changsha, China
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Thoracic epidural bupivacaine attenuates inflammatory response, intestinal lipid peroxidation, oxidative injury, and mucosal apoptosis induced by mesenteric ischemia/reperfusion. Anesth Analg 2011; 113:1226-32. [PMID: 21865496 DOI: 10.1213/ane.0b013e31822b8984] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND We conducted this study to evaluate the effects of thoracic epidural anesthesia (TEA) on inflammatory response, lipid peroxidation, and oxidative stress in a rat model of mesenteric ischemia/reperfusion (I/R). METHOD Rats were divided into 4 groups: sham group (n=6; sham laparotomy), control group (n=6; I/R), bupivacaine group (n=6; mesenteric I/R and 20 μL/h 0.5% bupivacaine), and saline group (n=6, mesenteric I/R and 20 μL/h 0.9% saline). I/R injury was established by occluding the superior mesenteric artery for 1 hour followed by 12 hours reperfusion. Blood gas, tumor necrosis factor-α, interleukin-6, interleukin-1β, glutathione peroxidise, superoxide dismutase, catalese, myeloperoxidase concentrations, immunohistochemical examinations (intracellular adhesion molecule-1), apoptosis determination, and wet/dry ratio of intestinal edema were determined. RESULTS Bupivacaine significantly decreased the cytokine, malondialdehyde, and myeloperoxidase levels and increased the antioxidant enzyme levels. Wet/dry ratio comparison showed a significant decrease in the bupivacaine (2.88±0.17) group in comparison with control (5.45±0.67) and saline (5.87±0.17) groups. The intestinal injury score was significantly decreased in rats in the epidural bupivacaine (2 [1-2]) infusion group in comparison with rats in the control (3 [2-3]) and saline (3 [2-4]) groups. Bupivacaine (63%) caused a significant decrease in the percentage of apoptotic cells in comparison with control (85%) only. ICAM-1 levels in the bupivacaine (27.4±7.1) group decreased in comparison with control (12.3±7.4) and saline (24.9±3.2) groups. CONCLUSION This study demonstrated that epidural bupivacaine attenuates the mesenteric I/R-related inflammatory response and intestinal damage.
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Eicher SD, Patterson JA, Rostagno MH. β-Glucan plus ascorbic acid in neonatal calves modulates immune functions with and without Salmonella enterica serovar Dublin. Vet Immunol Immunopathol 2011; 142:258-64. [PMID: 21628075 DOI: 10.1016/j.vetimm.2011.05.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2010] [Revised: 04/10/2011] [Accepted: 05/06/2011] [Indexed: 10/18/2022]
Abstract
To determine if β-glucan plus ascorbic acid affects adherence and pathogenicity of Salmonella Dublin and innate immune response in neonatal calves, 20 calves were fed control or supplemented diets (β-glucan, 0.9 g/d, plus ascorbic acid, 500 mg/d) until d 23. On d 21, 5 calves per treatment received 2.4 × 10(8)CFU of S. Dublin orally. S. Dublin spread through intestinal tissues into mesenteric lymph nodes (MLN), spleen, and lung tissues within 48 h. All supplemented calves had less mRNA expression of IL-1 receptor antagonist in liver. Leukocyte cell surface markers changed in lung cells, but not in blood, MLN, or spleen. CD14 in lungs was greatest for calves receiving supplement and challenge, but CD18 in lungs was greater for challenged than control calves. Lung DEC205 was greatest for challenged calves with and without supplement compared to controls, but more lung cells expressed CD14 for all treated groups compared to controls. These data show that S. Dublin briefly inhabited the intestinal tract, moving quickly to spleen, MLN, and lung tissues. Lung tissue was modulated by S. Dublin, but supplement alone increased CD14 expressing cells. The supplement appears not to attenuate invasiness but modified some lung cell populations by 48h.
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Affiliation(s)
- S D Eicher
- USDA-ARS, Livestock Behavior Research Unit, 125 S. Russell St., West Lafayette, IN 47907, United States.
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Local peritoneal irrigation with intestinal alkaline phosphatase is protective against peritonitis in mice. J Gastrointest Surg 2011; 15:860-9. [PMID: 21360208 DOI: 10.1007/s11605-010-1405-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2010] [Accepted: 12/08/2010] [Indexed: 01/31/2023]
Abstract
BACKGROUND The brush-border enzyme intestinal alkaline phosphatase (IAP) functions as a gut mucosal defense factor and detoxifies different toll-like receptor ligands. This study aimed to determine the therapeutic effects of locally administered calf IAP (cIAP) in a cecal ligation and puncture (CLP) model of polymicrobial sepsis. METHODS C57BL/6 mice underwent CLP followed by intraperitoneal injection of cIAP or normal saline. Blood leukocyte counts, levels of cytokines and liver enzymes, and lung myeloperoxidase activity were determined. Peritoneal lavage fluid (PLF) was assayed for neutrophil infiltration and both aerobic and anaerobic bacterial counts. RESULTS After intraperitoneal injection, cIAP activity in PLF decreased 50% within 15 min with minimal activity evident at 4 h. Compared with irrigation with normal saline, cIAP irrigation increased the 7-day survival rate in mice undergoing CLP, with maximal effects seen at 25 units of cIAP (0% vs. 46% survival rate, respectively; p < 0.001). cIAP treatment reduced lung inflammation, liver damage and levels of tumor necrosis factor alpha and interleukin-6. CONCLUSIONS Peritoneal irrigation with cIAP significantly enhances survival in a mouse model of peritonitis, likely through reduction of local inflammation and remote organ damage. We suggest that intraperitoneal cIAP irrigation could be a novel therapy for intra-abdominal sepsis.
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Abstract
β-(1,3)-d-Glucan with β-(1,6) branches has been reported to have various pharmacological activities, such as anti-tumour and anti-infection activities, which result from its immunomodulating effects. Gastric lesions result from an imbalance between aggressive and defensive factors. In the present study, we examined the effect of β-(1,3)-d-glucan with β-(1,6) branches isolated fromAureobasidium pullulanson the gastric ulcerogenic response in mice. Oral administration of β-glucan ameliorated gastric lesions induced by ethanol (EtOH) or HCl. This administration of β-glucan also suppressed EtOH-induced inflammatory responses, such as infiltration of neutrophils and expression of pro-inflammatory cytokines, chemokines and cell adhesion molecules (CAM) at the gastric mucosa. Of the various defensive factors, the levels of heat shock protein (HSP) 70 and mucin but not PGE2were increased by the administration of β-glucan. β-Glucan-dependent induction of the expression of HSP70 and mucin proteins and suppression of the expression of pro-inflammatory cytokines, chemokines and CAM were also observed in cultured cellsin vitro.The results of the present study suggest that β-glucan protects the gastric mucosa from the formation of irritant-induced lesions by increasing the levels of defensive factors, such as HSP70 and mucin.
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The β-human chorionic gonadotropin-related peptide LQGV reduces mortality and inflammation in a murine polymicrobial sepsis model. Crit Care Med 2011; 39:126-34. [PMID: 20890188 DOI: 10.1097/ccm.0b013e3181fa3a93] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Mortality in sepsis remains high and efforts to modulate the inflammatory response so far mostly failed to improve survival. The human chorionic gonadotropin-related tetrapeptide LQGV was recently shown to exert anti-inflammatory activity. The aim of this study was to assess the effect of LQGV on cecal ligation and puncture-induced mortality and inflammation. DESIGN Animal study. SETTING University research laboratory. SUBJECTS Male C57BL/6 mice. INTERVENTIONS To examine the effect of LQGV by itself on cecal ligation and puncture-induced mortality and inflammation, C57BL/6 mice were exposed to a moderate cecal ligation and puncture procedure (40% ligation and double puncture) with a mortality rate of approximately 80% within 5 days in control mice. In addition, to examine whether LQGV was of additive value to standard sepsis care (antibiotics and fluid resuscitation), a more severe cecal ligation and puncture procedure was used (80% ligation and double puncture), yielding approximately 100% mortality within 12 days in control mice. LQGV (5 mg/kg body weight), phosphate-buffered saline (as control), or dexamethasone (2.5 mg/kg body weight) was administered perioperatively. Survival was monitored for 21 days and inflammatory markers were determined in plasma, peritoneal cavity, and lungs. MEASUREMENTS AND MAIN RESULTS LQGV significantly improved survival from 20% to 50% during the first 5 days after moderate cecal ligation and puncture. This was associated with reduced cytokine and E-selectin levels in peritoneal lavage fluid, lungs, and, to a lesser extent, in plasma. LQGV treatment also reduced pulmonary nuclear factor-κB activation and pulmonary damage. In the severe cecal ligation and puncture model, LQGV combined with fluid resuscitation and antibiotics resulted in significantly better survival (70%) than that observed with fluid resuscitation and antibiotics alone (30%). CONCLUSIONS LQGV improves survival after cecal ligation and puncture. This is likely established by a modest reduction of the acute inflammatory response through a nuclear factor-κB-dependent mechanism. Furthermore, LQGV may be a valuable additive next to the standard care in polymicrobial sepsis.
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Effect of oat and barley β-glucans on inhibition of cytokine-induced adhesion molecule expression in human aortic endothelial cells: Molecular structure–function relations. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2010.11.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Gulmen S, Kiris I, Kocyigit A, Kumbul Dogus D, Ceylan BG, Meteoglu I. β-Glucan Protects against Lung Injury Induced by Abdominal Aortic Ischemia-Reperfusion in Rats. J Surg Res 2010; 164:e325-32. [DOI: 10.1016/j.jss.2010.08.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2010] [Revised: 07/08/2010] [Accepted: 08/09/2010] [Indexed: 11/16/2022]
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Cox CM, Stuard LH, Kim S, McElroy AP, Bedford MR, Dalloul RA. Performance and immune responses to dietary beta-glucan in broiler chicks. Poult Sci 2010; 89:1924-33. [PMID: 20709977 DOI: 10.3382/ps.2010-00865] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
During the first week posthatch, the avian immune system is immature and inefficient at protecting chicks from invading pathogens. Among immunomodulators, beta-glucans are known as biological response modifiers due to their ability to activate the immune system. Current research suggests that beta-glucans may enhance avian immunity; however, very little is known about their influence on regulation of immune function. A study was performed to evaluate the effects of dietary beta-glucan on growth performance, immune organ weights, peripheral blood cell profiles, and immune-related gene expression in the intestine. One-day-old chicks were fed a diet containing 0, 0.02, or 0.1% yeast beta-glucan (n = 30/treatment). On d 7 and 14 posthatch, body and relative immune organ weights were measured and small intestinal sections were collected to evaluate gene expression by quantitative real-time PCR. Peripheral blood samples were also collected to determine heterophil:lymphocyte ratios. Supplementation of beta-glucan did not significantly affect BW gains, and no significant differences were observed among groups for relative immune organ weights or heterophil:lymphocyte ratios. Compared with controls, expression of interleukin (IL)-8 was downregulated in the beta-glucan-treated groups on d 7 and 14. On d 14, beta-glucan inclusion resulted in increased inducible nitric oxide synthase expression. Expression of IL-18 was upregulated on d 7 but reduced on d 14 due to beta-glucan supplementation. On d 7, interferon-gamma and IL-4 expression decreased in the beta-glucan-treated groups. However, on d 14, IL-4 expression was upregulated in the supplemented groups. Intestinal expression of IL-13 was also downregulated in the beta-glucan-treated birds on d 7. These results suggest that dietary inclusion of beta-glucans altered the cytokine-chemokine balance; however, it did not elicit a robust immune response in the absence of a challenge, resulting in no deleterious effects on performance.
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Affiliation(s)
- C M Cox
- Avian Immunobiology Laboratory, Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA, USA
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