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Isikhuemhen OS, Anike FN, Enemudo JO, Mizuno M, Alagbaoso CA. Crude Polysaccharides from Mushrooms Elicit an Anti-Allergic Effect Against Type 1 Allergy In Vitro. Int J Med Mushrooms 2024; 26:1-9. [PMID: 38421692 DOI: 10.1615/intjmedmushrooms.2023051549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Type 1 allergic disease is a global challenge, hence the search for alternative therapies. Mushrooms have several medicinal and health benefits. However, scant data exist on the anti-allergic properties of polysaccharides from fruiting bodies (FB) and mycelia of mushrooms. We used an in vitro co-culture system comprising Caco-2 cells (intestinal epithelial colorectal carcinoma cell line) and RBL-2H3 cells (cell line from rat basophilic leukemia cells). Reduction in degranulation of mast cells indicated anti-allergy properties. The inhibitory effect of crude polysaccharides from different mushroom FB and mycelia on β-hexosaminidase release from RBL-2H3 cells was measured. Results showed that crude polysaccharides from the FB of Inonotus obliquus exhibited a significant inhibitory effect on β-hexosaminidase release and lowered it by 16%. Polysaccharides from the FB of Lentinus squarrosulus, and Pleurotus ostreatus did not exhibit a significant reduction in β-hexosaminidase. However, crude polysaccharides from their mycelia had a significant inhibitory effect, resulting in up to a 23% reduction in β-hexosaminidase activity. Among fungi showing degranulation properties, crude polysaccharides from their mycelia showed more potent action against degranulation than their corresponding FB. Polysaccharides extracted from FB and or mycelia, of selected mushrooms, possess anti-allergic properties that could be harnessed for use in alternative allergy therapies.
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Affiliation(s)
- Omoanghe S Isikhuemhen
- Mushroom Biology and Fungal Biotechnology Laboratory, Department of Natural Resources and Environmental Design, College of Agriculture and Environmental Sciences, North Carolina Agricultural and Technical State University, Greensboro, NC 27411, USA
| | - Felicia N Anike
- Mushroom Biology and Fungal Biotechnology Laboratory, Department of Natural Resources and Environmental Design, North Carolina Agricultural and Technical State University, Greensboro, NC 27411, USA
| | - Judith O Enemudo
- Mushroom Biology and Fungal Biotechnology Laboratory, Department of Natural Resource & Environmental Design, North Carolina A&T State University, Greensboro, NC 27411, USA
| | - Masashi Mizuno
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| | - Chidube A Alagbaoso
- Department of Biomedical Engineering, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
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2
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Diao J, Liu H, Cao H, Chen W. The dysfunction of Tfh cells promotes pediatric recurrent respiratory tract infections development by interfering humoral immune responses. Heliyon 2023; 9:e20778. [PMID: 37876425 PMCID: PMC10590952 DOI: 10.1016/j.heliyon.2023.e20778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 08/06/2023] [Accepted: 10/06/2023] [Indexed: 10/26/2023] Open
Abstract
Recurrent respiratory tract infections (RRTIs) are one of the most common pediatric diseases. Although the pathogenesis of pediatric RRTIs remains unknown, ineffective B cell-dominated humoral immunity has been considered as the core mechanism. During the course of pediatric RRTIs, B cell-dominated humoral immunity has changed from "protector" of respiratory system to "bystander" of respiratory tract infections. Under physiological condition, Tfh cells are essential for B cell-dominated humoral immunity, including regulating GC formation, promoting memory B cell (MB)/plasma cell (PC) differentiation, inducting immunoglobulin (Ig) class switching, and selecting affinity-matured antibodies. However, in disease states, Tfh cells are dysfunctional, which can be reflected by phenotypes and cytokine production. Tfh cell dysfunctions can cause the disorders of B cell-dominated humoral immunity, such as promoting B cell presented apoptosis, abrogating total Ig production, reducing MB/PC populations, and delaying affinity maturation of antigens-specific antibodies. In this review, we focused on the functions of B and Tfh cells in the homeostasis of respiratory system, and specifically discussed the disorders of humoral immunity and aberrant Tfh cell responses in the disease process of pediatric RRTIs. We hoped to provide some clues for the prevention and treatment of pediatric RRTIs.
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Affiliation(s)
- Jun Diao
- Department of Pediatrics, Yueyang Hospital of Chinese Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Huosheng Liu
- Department of Acupuncture and Moxibustion, Jiading Hospital of Traditional Chinese Medicine, Shanghai, 201800, China
| | - Hui Cao
- Department of Liver Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Weibin Chen
- Department of Pediatrics, Yueyang Hospital of Chinese Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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3
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Medoro A, Davinelli S, Colletti A, Di Micoli V, Grandi E, Fogacci F, Scapagnini G, Cicero AFG. Nutraceuticals as Modulators of Immune Function: A Review of Potential Therapeutic Effects. Prev Nutr Food Sci 2023; 28:89-107. [PMID: 37416796 PMCID: PMC10321448 DOI: 10.3746/pnf.2023.28.2.89] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 02/27/2023] [Accepted: 03/03/2023] [Indexed: 07/08/2023] Open
Abstract
Dietary supplementation with nutraceuticals can promote optimal immune system activation, modulating different pathways that enhance immune defenses. Therefore, the immunity-boosting effects of nutraceuticals encompass not only immunomodulatory but also antioxidant, antitumor, antiviral, antibacterial, and antifungal properties, with therapeutic effects against diverse pathological conditions. However, the complexity of the pathways that regulate the immune system, numerous mechanisms of action, and heterogeneity of the immunodeficiencies, and subjects treated make their application in the clinical field difficult. Some nutraceuticals appear to safely improve immune system function, particularly by preventing viral and bacterial infections in specific groups, such as children, the elderly, and athletes, as well as in frail patients, such as those affected by autoimmune diseases, chronic diseases, or cancer. Several nutraceuticals, such as vitamins, mineral salts, polyunsaturated omega-3 fatty acids, many types of phytocompounds, and probiotic strains, have the most consolidated evidence in humans. In most cases, further large and long-term randomized clinical trials are needed to confirm the available preliminary positive data.
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Affiliation(s)
- Alessandro Medoro
- Department of Medicine and Health Sciences “V. Tiberio”, University of Molise, Campobasso 86100, Italy
| | - Sergio Davinelli
- Department of Medicine and Health Sciences “V. Tiberio”, University of Molise, Campobasso 86100, Italy
- Italian Nutraceutical Society (SINut), Bologna 40138, Italy
| | - Alessandro Colletti
- Italian Nutraceutical Society (SINut), Bologna 40138, Italy
- Department of Science and Drug Technology, University of Turin, Turin 10125, Italy
| | - Valentina Di Micoli
- Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Bologna 40138, Italy
| | - Elisa Grandi
- Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Bologna 40138, Italy
| | - Federica Fogacci
- Italian Nutraceutical Society (SINut), Bologna 40138, Italy
- Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Bologna 40138, Italy
| | - Giovanni Scapagnini
- Department of Medicine and Health Sciences “V. Tiberio”, University of Molise, Campobasso 86100, Italy
- Italian Nutraceutical Society (SINut), Bologna 40138, Italy
| | - Arrigo F. G. Cicero
- Italian Nutraceutical Society (SINut), Bologna 40138, Italy
- Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Bologna 40138, Italy
- Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Azienda Ospedaliero Universitaria Policlinico S. Orsola-Malpighi, Bologna 40138, Italy
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4
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Kozarski M, Klaus A, van Griensven L, Jakovljevic D, Todorovic N, Wan-Mohtar WAAQI, Vunduk J. Mushroom β-glucan and polyphenol formulations as natural immunity boosters and balancers: nature of the application. FOOD SCIENCE AND HUMAN WELLNESS 2023. [DOI: 10.1016/j.fshw.2022.07.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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5
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Zerva A, Mohammadi M, Dimopoulos G, Taoukis P, Topakas E. Transglycosylation of Stevioside by a Commercial β-Glucanase with Fungal Extracted β-Glucans as Donors. WASTE AND BIOMASS VALORIZATION 2023; 14:1-11. [PMID: 36713934 PMCID: PMC9872074 DOI: 10.1007/s12649-023-02052-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 01/14/2023] [Indexed: 06/18/2023]
Abstract
Abstract Alternative sweeteners, such as steviol glucosides from the plant Stevia rebaudiana Bertoni, are becoming increasingly popular for the design of next-generation foodstuffs. However, the bitter aftertaste of native steviol glucosides is one of the main reasons behind consumer reluctance towards stevia-containing products. Biocatalysis could be a sustainable solution to this problem, through addition of glucosyl moieties to the molecule. Glycoside hydrolases are enzymes performing transglycosylation reactions, and they can be exploited for such modifications. In the present work, the commercial β-glucanase Finizym 250L® was employed for the transglycosylation of stevioside. After optimization of several reaction parameters, the maximal reaction yield obtained was 19%, with barley β-glucan as the glycosyl donor. With the aim to develop a sustainable process, β-glucan extracts from different fungal sources were prepared. Pulsed Electric Field pretreatment of mycelial biomass resulted in extracts with higher β-glucan content. The extracts were tested as alternative glucosyl donors, reaching up to 15.5% conversion yield, from Pleurotus-extracted β-glucan. Overall, in the present work a novel enzymatic process for the modification of stevioside is proposed, with concomitant valorization of β-glucans extracted from fungal biomass, potentially generated as a byproduct from other applications, in concert with the principles of circular economy. Graphical Abstract
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Affiliation(s)
- Anastasia Zerva
- Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, 5 Iroon Polytechniou Str., Zografou Campus, 15780 Athens, Greece
| | - Milad Mohammadi
- Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, 5 Iroon Polytechniou Str., Zografou Campus, 15780 Athens, Greece
| | - Georgios Dimopoulos
- Laboratory of Food Chemistry and Technology, School of Chemical Engineering, National Technical University of Athens, 5 Iroon Polytechniou Str., Zografou Campus, 15780 Athens, Greece
| | - Petros Taoukis
- Laboratory of Food Chemistry and Technology, School of Chemical Engineering, National Technical University of Athens, 5 Iroon Polytechniou Str., Zografou Campus, 15780 Athens, Greece
| | - Evangelos Topakas
- Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, 5 Iroon Polytechniou Str., Zografou Campus, 15780 Athens, Greece
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6
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Increasing the production of the bioactive compounds in medicinal mushrooms: an omics perspective. Microb Cell Fact 2023; 22:11. [PMID: 36647087 PMCID: PMC9841694 DOI: 10.1186/s12934-022-02013-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 12/28/2022] [Indexed: 01/18/2023] Open
Abstract
Macroscopic fungi, mainly higher basidiomycetes and some ascomycetes, are considered medicinal mushrooms and have long been used in different areas due to their pharmaceutically/nutritionally valuable bioactive compounds. However, the low production of these bioactive metabolites considerably limits the utilization of medicinal mushrooms both in commerce and clinical trials. As a result, many attempts, ranging from conventional methods to novel approaches, have been made to improve their production. The novel strategies include conducting omics investigations, constructing genome-scale metabolic models, and metabolic engineering. So far, genomics and the combined use of different omics studies are the most utilized omics analyses in medicinal mushroom research (both with 31% contribution), while metabolomics (with 4% contribution) is the least. This article is the first attempt for reviewing omics investigations in medicinal mushrooms with the ultimate aim of bioactive compound overproduction. In this regard, the role of these studies and systems biology in elucidating biosynthetic pathways of bioactive compounds and their contribution to metabolic engineering will be highlighted. Also, limitations of omics investigations and strategies for overcoming them will be provided in order to facilitate the overproduction of valuable bioactive metabolites in these valuable organisms.
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7
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Hobbs C. The Health and Clinical Benefits of Medicinal Fungi. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2023; 184:285-356. [PMID: 37468715 DOI: 10.1007/10_2023_230] [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: 07/21/2023]
Abstract
The human uses of mushrooms and cultured mycelium products for nutrition and medicine are detailed and supported by available human studies, which in many cases are clinical trials published in peer-reviewed journals. The major medically active immunomodulating compounds in the cell walls-chitin, beta-glucans, and glycoproteins, as well as lower weight molecules-nitrogen-containing compounds, phenolics, and terpenes-are discussed in relation to their current clinical uses. The nutritional content and foods derived from mushrooms, particularly related to their medical benefits, are discussed. High-quality major nutrients such as the high amounts of complete protein and prebiotic fibers found in edible and medicinal fungi and their products are presented. Mushrooms contain the highest amount of valuable medicinal fiber, while dried fruiting bodies of some fungi have up to 80% prebiotic fiber. These fibers are particularly complex and are not broken down in the upper gut, so they can diversify the microbiome and increase the most beneficial species, leading to better immune regulation and increasing normalizing levels of crucial neurotransmitters like serotonin and dopamine. Since the growth of medicinal mushroom products is expanding rapidly worldwide, attention is placed on reviewing important aspects of mushroom and mycelium cultivation and quality issues relating to adulteration, substitution, and purity and for maximizing medicinal potency. Common questions surrounding medicinal mushroom products in the marketplace, particularly the healing potential of fungal mycelium compared with fruiting bodies, extraction methods, and the use of fillers in products, are all explored, and many points are supported by the literature.
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Affiliation(s)
- Christopher Hobbs
- Institute for Natural Products Research, University of Massachusetts, Amherst, MA, USA.
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8
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Bhoite R, Satyavrat V, Premasudha Sadananda M. Clinical benefits of β-glucan supplementation in children: a review. DISCOVER FOOD 2022. [PMCID: PMC9793387 DOI: 10.1007/s44187-022-00038-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
AbstractMalnutrition is a global concern since it affects 130 million children under the age of 5 worldwide. The child’s immunity is brutally compromised, making them susceptible to various diseases and infections, leading to a high mortality rate. Multiple strategies have been implemented to strengthen immunity in children with compromised immunity, such as rendering a balanced diet, fortifying food, dietary supplements, and introducing potential natural dietary fibers to maintain good nutrition status, such as β-glucan. A class of biologically active polysaccharides, sourced from yeast, mushroom, bacteria, and cereals with versatile immunomodulatory benefits that potentially primes the host immune system, drives several metabolic health effects, increases infection resistance, shields against the damaging effects of stress, and maintains healthy energy levels. This review focuses on the capabilities, underlying mechanisms, immune-stimulating potency, and clinically meaningful shreds of evidence to substantiate the multiple health benefits of β-glucan in children. Although, more clinical studies are required, current findings confirms the various biological response modifying abilities of β-glucan that may notably aid in the development of a strong immune system in children for their overall health and wellbeing.
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Affiliation(s)
- Rachana Bhoite
- Dr Reddy’s Laboratories Pvt Ltd, Ameerpet, Hyderabad, India
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9
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Du B, Zhang X, Zhu C, Wu Y, Ji H, Zhang Y, Yue X. Immunomodulatory and Antioxidant Effects of Polysaccharides from
Pleurotus ostreatus
on immunosuppressed mice. STARCH-STARKE 2022. [DOI: 10.1002/star.202200009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Biqi Du
- College of Food Engineering and Nutrition Science Shaanxi Normal University Xi'an 710119 China
| | - Xiao Zhang
- College of Food Engineering and Nutrition Science Shaanxi Normal University Xi'an 710119 China
| | - Caiping Zhu
- College of Food Engineering and Nutrition Science Shaanxi Normal University Xi'an 710119 China
| | - Yuan Wu
- College of Food Engineering and Nutrition Science Shaanxi Normal University Xi'an 710119 China
| | - Huijie Ji
- College of Food Engineering and Nutrition Science Shaanxi Normal University Xi'an 710119 China
| | - Yifan Zhang
- College of Food Engineering and Nutrition Science Shaanxi Normal University Xi'an 710119 China
| | - Xiaoxia Yue
- College of Food Engineering and Nutrition Science Shaanxi Normal University Xi'an 710119 China
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10
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Tian JJ, Levy M, Zhang X, Sinnott R, Maddela R. Counteracting Health Risks by Modulating Homeostatic Signaling. Pharmacol Res 2022; 182:106281. [PMID: 35661711 DOI: 10.1016/j.phrs.2022.106281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/14/2022] [Accepted: 05/27/2022] [Indexed: 10/18/2022]
Abstract
Homeostasis was initially conceptualized by Bernard and Cannon around a century ago as a steady state of physiological parameters that vary within a certain range, such as blood pH, body temperature, and heart rate1,2. The underlying mechanisms that maintain homeostasis are explained by negative feedbacks that are executed by the neuronal, endocrine, and immune systems. At the cellular level, homeostasis, such as that of redox and energy steady state, also exists and is regulated by various cell signaling pathways. The induction of homeostatic mechanism is critical for human to adapt to various disruptive insults (stressors); while on the other hand, adaptation occurs at the expense of other physiological processes and thus runs the risk of collateral damages, particularly under conditions of chronic stress. Conceivably, anti-stress protection can be achieved by stressor-mimicking medicinals that elicit adaptive responses prior to an insult and thereby serve as health risk countermeasures; and in situations where maladaptation may occur, downregulating medicinals could be used to suppress the responses and prevent subsequent pathogenesis. Both strategies are preemptive interventions particularly suited for individuals who carry certain lifestyle, environmental, or genetic risk factors. In this article, we will define and characterize a new modality of prophylactic intervention that forestalls diseases via modulating homeostatic signaling. Moreover, we will provide evidence from the literature that support this concept and distinguish it from other homeostasis-related interventions such as adaptogen, hormesis, and xenohormesis.
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Affiliation(s)
- Junqiang J Tian
- USANA Health Science, Inc., 3838 Parkway Blvd, Salt Lake City, UT 84121, USA.
| | - Mark Levy
- USANA Health Science, Inc., 3838 Parkway Blvd, Salt Lake City, UT 84121, USA
| | - Xuekai Zhang
- Beijing University of Chinese Medicine, No. 11, Bei San Huan Dong Lu, Chaoyang District, Beijing100029, China; US Center for Chinese Medicine, 14801 Physicians lane, 171 A 2nd Floor, #281, Rockville MD 20850, USA
| | - Robert Sinnott
- USANA Health Science, Inc., 3838 Parkway Blvd, Salt Lake City, UT 84121, USA
| | - Rolando Maddela
- USANA Health Science, Inc., 3838 Parkway Blvd, Salt Lake City, UT 84121, USA
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11
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Phillips JM, Ooi SL, Pak SC. Health-Promoting Properties of Medicinal Mushrooms and Their Bioactive Compounds for the COVID-19 Era—An Appraisal: Do the Pro-Health Claims Measure Up? Molecules 2022; 27:molecules27072302. [PMID: 35408701 PMCID: PMC9000601 DOI: 10.3390/molecules27072302] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/24/2022] [Accepted: 03/30/2022] [Indexed: 01/19/2023] Open
Abstract
Many mushroom species are consumed as food, while significant numbers are also utilised medicinally. Mushrooms are rich in nutrients and bioactive compounds. A growing body of in vitro, in vivo, and human research has revealed their therapeutic potentials, which include such properties as anti-pathogenic, antioxidant, anti-inflammatory, immunomodulatory, gut microbiota enhancement, and angiotensin-converting enzyme 2 specificity. The uses of medicinal mushrooms (MMs) as extracts in nutraceuticals and other functional food and health products are burgeoning. COVID-19 presents an opportunity to consider how, and if, specific MM compounds might be utilised therapeutically to mitigate associated risk factors, reduce disease severity, and support recovery. As vaccines become a mainstay, MMs may have the potential as an adjunct therapy to enhance immunity. In the context of COVID-19, this review explores current research about MMs to identify the key properties claimed to confer health benefits. Considered also are barriers or limitations that may impact general recommendations on MMs as therapy. It is contended that the extraction method used to isolate bioactive compounds must be a primary consideration for efficacious targeting of physiological endpoints. Mushrooms commonly available for culinary use and obtainable as a dietary supplement for medicinal purposes are included in this review. Specific properties related to these mushrooms have been considered due to their potential protective and mediating effects on human exposure to the SARS CoV-2 virus and the ensuing COVID-19 disease processes.
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Affiliation(s)
- Jennifer Mary Phillips
- School of Dentistry and Medical Sciences, Charles Sturt University, Bathurst, NSW 2795, Australia; (J.M.P.); (S.L.O.)
- LAGOM NutriHealing, 16 Gentile Court, Hobart, TAS 7010, Australia
| | - Soo Liang Ooi
- School of Dentistry and Medical Sciences, Charles Sturt University, Bathurst, NSW 2795, Australia; (J.M.P.); (S.L.O.)
| | - Sok Cheon Pak
- School of Dentistry and Medical Sciences, Charles Sturt University, Bathurst, NSW 2795, Australia; (J.M.P.); (S.L.O.)
- Correspondence: ; Tel.: +61-2-6338-4952; Fax: +61-2-6338-4993
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12
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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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13
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Brueggeman JM, Zhao J, Schank M, Yao ZQ, Moorman JP. Trained Immunity: An Overview and the Impact on COVID-19. Front Immunol 2022; 13:837524. [PMID: 35251030 PMCID: PMC8891531 DOI: 10.3389/fimmu.2022.837524] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 01/28/2022] [Indexed: 01/13/2023] Open
Abstract
Effectively treating infectious diseases often requires a multi-step approach to target different components involved in disease pathogenesis. Similarly, the COVID-19 pandemic has become a global health crisis that requires a comprehensive understanding of Severe Acute Respiratory Syndrome Corona Virus 2 (SARS-CoV-2) infection to develop effective therapeutics. One potential strategy to instill greater immune protection against COVID-19 is boosting the innate immune system. This boosting, termed trained immunity, employs immune system modulators to train innate immune cells to produce an enhanced, non-specific immune response upon reactivation following exposure to pathogens, a process that has been studied in the context of in vitro and in vivo clinical studies prior to the COVID-19 pandemic. Evaluation of the underlying pathways that are essential to inducing protective trained immunity will provide insight into identifying potential therapeutic targets that may alleviate the COVID-19 crisis. Here we review multiple immune training agents, including Bacillus Calmette-Guérin (BCG), β-glucan, and lipopolysaccharide (LPS), and the two most popular cell types involved in trained immunity, monocytes and natural killer (NK) cells, and compare the signaling pathways involved in innate immunity. Additionally, we discuss COVID-19 trained immunity clinical trials, emphasizing the potential of trained immunity to fight SARS-CoV-2 infection. Understanding the mechanisms by which training agents activate innate immune cells to reprogram immune responses may prove beneficial in developing preventive and therapeutic targets against COVID-19.
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Affiliation(s)
- Justin M. Brueggeman
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States,Division of Infectious, Inflammatory and Immunologic Diseases, Department of Internal Medicine, Quillen College of Medicine, East Tennessee State University (ETSU), Johnson City, TN, United States,Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, TN, United States
| | - Juan Zhao
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States,Division of Infectious, Inflammatory and Immunologic Diseases, Department of Internal Medicine, Quillen College of Medicine, East Tennessee State University (ETSU), Johnson City, TN, United States
| | - Madison Schank
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States,Division of Infectious, Inflammatory and Immunologic Diseases, Department of Internal Medicine, Quillen College of Medicine, East Tennessee State University (ETSU), Johnson City, TN, United States
| | - Zhi Q. Yao
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States,Division of Infectious, Inflammatory and Immunologic Diseases, Department of Internal Medicine, Quillen College of Medicine, East Tennessee State University (ETSU), Johnson City, TN, United States,Hepatitis (HCV/HBV/HIV) Program, James H. Quillen VA Medical Center, Department of Veterans Affairs, Johnson City, TN, United States
| | - Jonathan P. Moorman
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States,Division of Infectious, Inflammatory and Immunologic Diseases, Department of Internal Medicine, Quillen College of Medicine, East Tennessee State University (ETSU), Johnson City, TN, United States,Hepatitis (HCV/HBV/HIV) Program, James H. Quillen VA Medical Center, Department of Veterans Affairs, Johnson City, TN, United States,*Correspondence: Jonathan P. Moorman,
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14
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Mata-Martínez P, Bergón-Gutiérrez M, del Fresno C. Dectin-1 Signaling Update: New Perspectives for Trained Immunity. Front Immunol 2022; 13:812148. [PMID: 35237264 PMCID: PMC8882614 DOI: 10.3389/fimmu.2022.812148] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 01/20/2022] [Indexed: 12/12/2022] Open
Abstract
The C-type lectin receptor Dectin-1 was originally described as the β-glucan receptor expressed in myeloid cells, with crucial functions in antifungal responses. However, over time, different ligands both of microbial-derived and endogenous origin have been shown to be recognized by Dectin-1. The outcomes of this recognition are diverse, including pro-inflammatory responses such as cytokine production, reactive oxygen species generation and phagocytosis. Nonetheless, tolerant responses have been also attributed to Dectin-1, depending on the specific ligand engaged. Dectin-1 recognition of their ligands triggers a plethora of downstream signaling pathways, with complex interrelationships. These signaling routes can be modulated by diverse factors such as phosphatases or tetraspanins, resulting either in pro-inflammatory or regulatory responses. Since its first depiction, Dectin-1 has recently gained a renewed attention due to its role in the induction of trained immunity. This process of long-term memory of innate immune cells can be triggered by β-glucans, and Dectin-1 is crucial for its initiation. The main signaling pathways involved in this process have been described, although the understanding of the above-mentioned complexity in the β-glucan-induced trained immunity is still scarce. In here, we have reviewed and updated all these factors related to the biology of Dectin-1, highlighting the gaps that deserve further research. We believe on the relevance to fully understand how this receptor works, and therefore, how we could harness it in different pathological conditions as diverse as fungal infections, autoimmunity, or cancer.
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15
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Rennerova Z, Picó Sirvent L, Carvajal Roca E, Paśnik J, Logar M, Milošević K, Majtan J, Jesenak M. Beta-(1,3/1,6)-D-glucan from Pleurotus ostreatus in the prevention of recurrent respiratory tract infections: An international, multicentre, open-label, prospective study. Front Pediatr 2022; 10:999701. [PMID: 36324817 PMCID: PMC9619242 DOI: 10.3389/fped.2022.999701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 09/27/2022] [Indexed: 11/13/2022] Open
Abstract
Preschool children are particularly susceptible to recurrent upper and lower respiratory tract infections due to their immune immaturity and other contributing factors. Preventing and/or treating children suffering from recurrent respiratory tract infections (RRTIs) is challenging, and it is important to provide more clinical evidence about the safety and efficacy of natural immunomodulating preparations, including β-glucans. The aim of the present study was to assess the incidence of respiratory tract infections (RTIs) in children with a history of RRTIs for a period of 6 months (3 months of pleuran supplementation and 3 months of follow-up) compared with the same period from October to March of the previous year prior to enrolment in the study. A total of 1,030 children with a mean age of 3.49 ± 1.91 years from seven countries were included in this study. The total number of RTIs observed during the study period was significantly lower compared to the same period of the previous year (7.07 ± 2.89 vs. 3.87 ± 3.19; p < 0.001). Analysis of each type of RTI revealed significant reductions in the mean number and duration of infections for all RTI subtypes compared to the previous year. This study also confirmed the beneficial safety profile of pleuran supplementation. In conclusion, pleuran supplementation represents an interesting and prospective supplement in preventing respiratory infections and reveals new strategies for supporting immune functions in the paediatric population.
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Affiliation(s)
- Zuzana Rennerova
- Department of Paediatric Pulmonology and Phthisiology, Faculty of Medicine, Slovak Medical University, National Children Institute of Health, Bratislava, Slovakia
| | - Leandro Picó Sirvent
- Paediatrics Department, Hospital de la Salud, Valencia, Spain.,Faculty of Medicine and Health Sciences, Valencia Catholic University Saint Vincent Martyr, Valencia, Spain
| | - Eva Carvajal Roca
- Paediatrics Department, Hospital de la Salud, Valencia, Spain.,Faculty of Medicine and Health Sciences, Valencia Catholic University Saint Vincent Martyr, Valencia, Spain
| | | | - Mateja Logar
- Department of Infectious Diseases, University Medical Center Ljubljana, Ljubljana, Slovenia.,Department of Infectious Diseases and Epidemiology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Katarina Milošević
- Department of Pulmonology and Allergology, University Children's Hospital, Belgrade, Serbia.,School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Juraj Majtan
- Institute of Molecular Biology, Slovak Academy of Sciences, Bratislava, Slovakia.,Department of Microbiology, Faculty of Medicine, Slovak Medical University, Bratislava, Slovakia
| | - Milos Jesenak
- Department of Paediatrics, Jessenius Faculty of Medicine, University Teaching Hospital in Martin, Comenius University in Bratislava, Martin, Slovakia.,Department of Clinical Immunology and Allergology, University Teaching Hospital in Martin, Martin, Slovakia
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16
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Booi HN, Lee MK, Fung SY, Ng ST, Tan CS, Lim KH, Roberts R, Ting KN. Medicinal Mushrooms and Their Use to Strengthen Respiratory Health During and Post-COVID-19 Pandemic. Int J Med Mushrooms 2022; 24:1-14. [DOI: 10.1615/intjmedmushrooms.2022045068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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17
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Fischer S, Stegmann F, Gnanapragassam VS, Lepenies B. From structure to function – Ligand recognition by myeloid C-type lectin receptors. Comput Struct Biotechnol J 2022; 20:5790-5812. [DOI: 10.1016/j.csbj.2022.10.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/14/2022] [Accepted: 10/14/2022] [Indexed: 11/29/2022] Open
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18
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Pang L, Wang T, Liao Q, Cheng Y, Wang D, Li J, Fu C, Zhang C, Zhang J. Protective role of ergothioneine isolated from Pleurotus ostreatus against dextran sulfate sodium-induced ulcerative colitis in rat model. J Food Sci 2021; 87:415-426. [PMID: 34873706 DOI: 10.1111/1750-3841.15982] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 09/27/2021] [Accepted: 10/18/2021] [Indexed: 11/30/2022]
Abstract
The well-acknowledged sulfur-containing amino acid ergothioneine (EGT), which is usually perceived to be produced from fungi, cyanobacteria, and mushrooms, has been increasingly demonstrated as a diet-derived antioxidant with therapeutic potential. However, little is known regarding the therapeutic benefit against ulcerative colitis of EGT. Meanwhile, few studies have reported whether EGT could be produced by Pleurotus ostreatus, which is the second most cultivated edible mushroom worldwide, with ideal economic and ecological values and medicinal properties. In the current study, EGT was primarily extracted and isolated from P. ostreatus by water extraction and alcohol precipitation. Then, the Sephadex G-10 gel permeation chromatography and preparative high-performance liquid chromatography were employed in order to purify and collect EGT. Based on nuclear magnetic resonance spectrum characterization, the content of EGT extracted from P. ostreatus is 1.916 mg/g (the weight of EGT is the same as that of dry P. ostreatus). Finally, both the antioxidant activity in vitro and potential effects of EGT on dextran sulfate sodium-induced ulcerative colitis in rats were investigated. The results showed that the collected EGT exhibited strong antioxidant activity with a concentration-dependent manner in 1,1-diphenyl-2-picrylhydrazyl and 2,2'-azinobis (3-ethylbenzoline-6-sulphonic acid) assays. The oral administration of EGT can significantly alleviate colon length shortening and colonic pathological damage, mediated by downregulating the expression of pro-inflammatory factors and inhibiting TLR4/MyD88/NF-κB signaling pathway. Therefore, this study demonstrated that EGT from P. ostreatus would be an excellent dietary compound to ameliorate ulcerative colitis. PRACTICAL APPLICATION: In order to develop Pleurotus ostreatus as a functional food and related products for the prevention and treatment of ulcerative colitis, the separation and purification technology of ergothioneine (EGT) from P. ostreatus was studied, which not only provided a new and broader source for the acquisition and development of EGT, but also provided a basis for the development of EGT as a drug against UC.
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Affiliation(s)
- Lan Pang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ting Wang
- Department of traditional Chinese medicine pharmacy, Affiliated Hospital/Clinical Medical College of Chengdu University, Chengdu, China
| | - Qian Liao
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yanfen Cheng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Di Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jingjing Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Chaomei Fu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Chen Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jinming Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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19
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Córdova-Martínez A, Caballero-García A, Roche E, Noriega DC. β-Glucans Could Be Adjuvants for SARS-CoV-2 Virus Vaccines (COVID-19). INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182312636. [PMID: 34886361 PMCID: PMC8656611 DOI: 10.3390/ijerph182312636] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/26/2021] [Accepted: 11/27/2021] [Indexed: 12/23/2022]
Abstract
Waiting for an effective treatment against the SARS-CoV-2 virus (the cause of COVID-19), the current alternatives include prevention and the use of vaccines. At the moment, vaccination is the most effective strategy in the fight against pandemic. Vaccines can be administered with different natural biological products (adjuvants) with immunomodulating properties. Adjuvants can be taken orally, complementing vaccine action. Adjuvant compounds could play a key role in alleviating the symptoms of the disease, as well as in enhancing vaccine action. Adjuvants also contribute to an effective immune response and can enhance the protective effect of vaccines in immunocompromised individuals such as the elderly. Adjuvants must not produce adverse effects, toxicity, or any other symptoms that could alter immune system function. Vaccine adjuvants are substances of wide varying chemical structure that are used to boost the immune response against a simultaneously administered antigen. Glucans could work as adjuvants due to their immunomodulatory biological activity. In this respect, β-(1,3)-(1,6) glucans are considered the most effective and safe according to the list issued by the European Commission. Only glucans with a β-(1,3) bond linked to a β-(1,6) are considered modulators of certain biological responses. The aim of this review is to present the possible effects of β-glucans as adjuvants in the efficacy of vaccines against SARS-CoV-2 virus.
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Affiliation(s)
- Alfredo Córdova-Martínez
- Department of Biochemistry, Molecular Biology and Physiology, Faculty of Health Sciences, GIR: “Physical Exercise and Ageing”, University Campus “Los Pajaritos”, Valladolid University, 42004 Soria, Spain
- Correspondence:
| | - Alberto Caballero-García
- Department of Anatomy and Radiology, Faculty of Health Sciences, GIR: “Physical Exercise and Ageing”, University Campus “Los Pajaritos”, Valladolid University, 42004 Soria, Spain;
| | - Enrique Roche
- Department of Applied Biology-Nutrition, Institute of Bioengineering, Miguel Hernández University, 03202 Elche, Spain;
- Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), 03010 Alicante, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - David C. Noriega
- Spine Unit, Department of Surgery, Ophthalmology, Otorhinolaryngology and Physiotherapy, Faculty of Medicine, Hospital Clínico Universitario de Valladolid, 47003 Valladolid, Spain;
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20
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Spacek J, Vocka M, Zavadova E, Konopasek B, Petruzelka L. Immunomodulation with β-glucan from Pleurotus ostreatus in patients with endocrine-dependent breast cancer. Immunotherapy 2021; 14:31-40. [PMID: 34784798 DOI: 10.2217/imt-2021-0069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Aim: To evaluate the effect of pleuran (β-glucan from Pleurotus ostreatus) administration on the immune profile of patients with endocrine-dependent breast cancer (clinical stages I-II) in clinical and imaging remission. Methodology: Antitumor cellular immunity (CD19+, CD3+, CD4+ and CD8+ T lymphocytes, and natural killer cells) of 195 patients (49 in the pleuran group and 146 in the control group) was measured by flow cytometry. Results: We observed a significant increase in the absolute number of CD3+, CD19+, CD4+ and CD8+ T lymphocytes in the pleuran group compared with the control group. Conclusion: Our results suggest potential benefit of continuous pleuran administration on immune rehabilitation of cellular antitumor immunity and better prognosis in breast cancer patients in remission.
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Affiliation(s)
- Jan Spacek
- Department of Oncology, First Faculty of Medicine, Charles University & General University Hospital in Prague, U Nemocnice 2, Praha 2, 128 08, Czech Republic
| | - Michal Vocka
- Department of Oncology, First Faculty of Medicine, Charles University & General University Hospital in Prague, U Nemocnice 2, Praha 2, 128 08, Czech Republic
| | - Eva Zavadova
- Department of Oncology, First Faculty of Medicine, Charles University & General University Hospital in Prague, U Nemocnice 2, Praha 2, 128 08, Czech Republic
| | - Bohuslav Konopasek
- Department of Oncology, First Faculty of Medicine, Charles University & General University Hospital in Prague, U Nemocnice 2, Praha 2, 128 08, Czech Republic
| | - Lubos Petruzelka
- Department of Oncology, First Faculty of Medicine, Charles University & General University Hospital in Prague, U Nemocnice 2, Praha 2, 128 08, Czech Republic
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21
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Mirończuk-Chodakowska I, Kujawowicz K, Witkowska AM. Beta-Glucans from Fungi: Biological and Health-Promoting Potential in the COVID-19 Pandemic Era. Nutrients 2021; 13:3960. [PMID: 34836215 PMCID: PMC8623785 DOI: 10.3390/nu13113960] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/04/2021] [Accepted: 11/04/2021] [Indexed: 12/12/2022] Open
Abstract
Beta-glucans comprise a group of polysaccharides of natural origin found in bacteria, algae, and plants, e.g., cereal seeds, as well as microfungi and macrofungi (mushrooms), which are characterized by diverse structures and functions. They are known for their metabolic and immunomodulatory properties, including anticancer, antibacterial, and antiviral. Recent reports suggest a potential of beta-glucans in the prevention and treatment of COVID-19. In contrast to β-glucans from other sources, β-glucans from mushrooms are characterized by β-1,3-glucans with short β-1,6-side chains. This structure is recognized by receptors located on the surface of immune cells; thus, mushroom β-glucans have specific immunomodulatory properties and gained BRM (biological response modifier) status. Moreover, mushroom beta-glucans also owe their properties to the formation of triple helix conformation, which is one of the key factors influencing the bioactivity of mushroom beta-glucans. This review summarizes the latest findings on biological and health-promoting potential of mushroom beta-glucans for the treatment of civilization and viral diseases, with particular emphasis on COVID-19.
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Affiliation(s)
- Iwona Mirończuk-Chodakowska
- Department of Food Biotechnology, Faculty of Health Sciences, Medical University of Bialystok, Szpitalna 37, 15-295 Bialystok, Poland; (K.K.); (A.M.W.)
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22
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Edible Mushrooms and Beta-Glucans: Impact on Human Health. Nutrients 2021; 13:nu13072195. [PMID: 34202377 PMCID: PMC8308413 DOI: 10.3390/nu13072195] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/16/2021] [Accepted: 06/22/2021] [Indexed: 12/19/2022] Open
Abstract
Mushroom cell walls are rich in β-glucans, long or short-chain polymers of glucose subunits with β-1,3 and β-1,6 linkages, that are responsible for the linear and branching structures, respectively. β-glucans from cereals, at variance, have no 1,6 linkages nor branching structures. Both immunomodulatory and anti-inflammatory effects of mushrooms have been described using purified β-glucans or fungi extracts on cellular and experimental models; their potential clinical use has been tested in different conditions, such as recurrent infections of the respiratory tract or complications of major surgery. Another promising application of β-glucans is on cancer, as adjuvant of conventional chemotherapy. β-glucans may protect the cardiovascular system, ameliorating glucose, lipid metabolism, and blood pressure: these activities, observed for oat and barley β-glucans, require confirmation in human studies with mushroom β-glucans. On the other hand, mushrooms may also protect the cardiovascular system via a number of other components, such as bioactive phenolic compounds, vitamins, and mineral elements. The growing knowledge on the mechanism(s) and health benefits of mushrooms is encouraging the development of a potential clinical use of β-glucans, and also to further document their role in preserving health and prevent disease in the context of healthy lifestyles.
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23
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Vlassopoulou M, Yannakoulia M, Pletsa V, Zervakis GI, Kyriacou A. Effects of fungal beta-glucans on health - a systematic review of randomized controlled trials. Food Funct 2021; 12:3366-3380. [PMID: 33876798 DOI: 10.1039/d1fo00122a] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
INTRODUCTION Beta-glucans are polysaccharides that exhibit a wide range of biological properties as a result of their varying chemical composition. Like all dietary fibers, they avoid catabolism in the upper gastrointestinal tract, and they reach the large intestine undigested. There, they undergo fermentation by the gut microbiota, a process that has potential beneficial effects for the host. The aim of this systematic review is to assess the effects of consumption of beta-(1 → 3,1 → 6)-d-glucans, naturally found in the cell walls of fungi, on health outcomes. METHODS A comprehensive literature search was performed on PubMed, Cochrane Library and Web of Science to retrieve studies that applied randomized controlled trials (RCTs) to investigate the impact of exclusive oral administration of fungal beta-glucans in any form and at any dosage to healthy subjects or patients. RESULTS Thirty-four RCTs, of the 917 records retrieved in total, met the eligibility criteria and are included in the present review. The sources of fungal beta-glucans were Saccharomyces cerevisiae, Aureobasidium pullulans, Pleurotus ostreatus, Lentinula edodes and Ganoderma lucidum, and the dosage of supplementation ranged from 2.5 to 1000 mg daily for up to 6.5 months. The primary physiological outcome of the majority of the interventions was immunomodulation, which resulted in (a) strengthened immune defense that reduces the incidence and symptoms of cold, flu and other respiratory infections and (b) improvement of allergic symptoms. However, the findings on the induction of immune response alterations were inconsistent at the cellular and molecular levels. Another aspect is psychological wellbeing, as the cohorts that received the polysaccharides of interest reported improvement in their mood states as well as amelioration of overall wellbeing. At the same time, it might also be useful as a complementary agent to patients undergoing cancer therapies. Furthermore, supplements containing beta-(1 → 3,1 → 6)-d-glucan administered to overweight/obese adults might have the potential to decrease comorbid conditions associated with obesity. Notably, no adverse event causally related to glucans was recorded. CONCLUSIONS Supplementation with beta-(1 → 3,1 → 6)-d-glucans is well-tolerated, and health-promoting properties are manifested primarily through the potentiation of the immune system. More studies are required to confirm their additional beneficial effects, to establish the optimal dose, and to reveal the underlying molecular mechanisms.
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Affiliation(s)
- Marigoula Vlassopoulou
- Department of Nutrition and Dietetics, Harokopio University, 70 El. Venizelou Str., Kallithea 176 76, Greece. and Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vas. Constantinou Ave., Athens 116 35, Greece
| | - Mary Yannakoulia
- Department of Nutrition and Dietetics, Harokopio University, 70 El. Venizelou Str., Kallithea 176 76, Greece.
| | - Vasiliki Pletsa
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vas. Constantinou Ave., Athens 116 35, Greece
| | - Georgios I Zervakis
- Laboratory of General and Agricultural Microbiology, Department of Crop Science, Agricultural University of Athens, 75 Iera Odos Str., Athens 118 55, Greece
| | - Adamantini Kyriacou
- Department of Nutrition and Dietetics, Harokopio University, 70 El. Venizelou Str., Kallithea 176 76, Greece.
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24
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Niego AG, Rapior S, Thongklang N, Raspé O, Jaidee W, Lumyong S, Hyde KD. Macrofungi as a Nutraceutical Source: Promising Bioactive Compounds and Market Value. J Fungi (Basel) 2021; 7:397. [PMID: 34069721 PMCID: PMC8161071 DOI: 10.3390/jof7050397] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/16/2021] [Accepted: 05/16/2021] [Indexed: 02/06/2023] Open
Abstract
Macrofungi production and economic value have been increasing globally. The demand for macrofungi has expanded rapidly owing to their popularity among consumers, pleasant taste, and unique flavors. The presence of high quality proteins, polysaccharides, unsaturated fatty acids, minerals, triterpene sterols, and secondary metabolites makes macrofungi an important commodity. Macrofungi are well known for their ability to protect from or cure various health problems, such as immunodeficiency, cancer, inflammation, hypertension, hyperlipidemia, hypercholesterolemia, and obesity. Many studies have demonstrated their medicinal properties, supported by both in vivo and in vitro experimental studies, as well as clinical trials. Numerous bioactive compounds isolated from mushrooms, such as polysaccharides, proteins, fats, phenolic compounds, and vitamins, possess strong bioactivities. Consequently, they can be considered as an important source of nutraceuticals. Numerous edible mushrooms have been studied for their bioactivities, but only a few species have made it to the market. Many species remain to be explored. The converging trends and popularity of eastern herbal medicines, natural/organic food product preference, gut-healthy products, and positive outlook towards sports nutrition are supporting the growth in the medicinal mushroom market. The consumption of medicinal mushrooms as functional food or dietary supplement is expected to markedly increase in the future. The global medicinal mushroom market size is projected to increase by USD 13.88 billion from 2018 to 2022. The global market values of promising bioactive compounds, such as lentinan and lovastatin, are also expected to rise. With such a market growth, mushroom nutraceuticals hold to be very promising in the years to come.
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Affiliation(s)
- Allen Grace Niego
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand; (A.G.N.); (N.T.); (O.R.)
- School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
- Iloilo Science and Technology University, La Paz, Iloilo 5000, Philippines
| | - Sylvie Rapior
- Laboratory of Botany, Phytochemistry and Mycology, Faculty of Pharmacy, CEFE, CNRS, University Montpellier, EPHE, IRD, CS 14491, 15 Avenue Charles Flahault, CEDEX 5, 34093 Montpellier, France;
| | - Naritsada Thongklang
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand; (A.G.N.); (N.T.); (O.R.)
- School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Olivier Raspé
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand; (A.G.N.); (N.T.); (O.R.)
- School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Wuttichai Jaidee
- Medicinal Plants Innovation Center, Mae Fah Luang University, Chiang Rai 57100, Thailand;
| | - Saisamorn Lumyong
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand;
- Research Center of Microbial Diversity and Sustainable Utilization, Chiang Mai University, Chiang Mai 50200, Thailand
- Academy of Science, The Royal Society of Thailand, Bangkok 10300, Thailand
| | - Kevin D. Hyde
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand; (A.G.N.); (N.T.); (O.R.)
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand;
- Innovative Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Guangzhou 510408, China
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25
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Živković J, Ivanov M, Stojković D, Glamočlija J. Ethnomycological Investigation in Serbia: Astonishing Realm of Mycomedicines and Mycofood. J Fungi (Basel) 2021; 7:jof7050349. [PMID: 33947042 PMCID: PMC8146042 DOI: 10.3390/jof7050349] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/22/2021] [Accepted: 04/27/2021] [Indexed: 12/17/2022] Open
Abstract
This study aims to fill the gaps in ethnomycological knowledge in Serbia by identifying various fungal species that have been used due to their medicinal or nutritional properties. Ethnomycological information was gathered using semi-structured interviews with participants from different mycological associations in Serbia. A total of 62 participants were involved in this study. Eighty-five species belonging to 28 families were identified. All of the reported fungal species were pointed out as edible, and only 15 of them were declared as medicinal. The family Boletaceae was represented by the highest number of species, followed by Russulaceae, Agaricaceae and Polyporaceae. We also performed detailed analysis of the literature in order to provide scientific evidence for the recorded medicinal use of fungi in Serbia. The male participants reported a higher level of ethnomycological knowledge compared to women, whereas the highest number of used fungi species was mentioned by participants within the age group of 61–80 years. In addition to preserving ethnomycological knowledge in Serbia, this study can present a good starting point for further pharmacological investigations of fungi.
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Affiliation(s)
- Jelena Živković
- Institute for Medicinal Plants Research “Dr Josif Pancic”, Tadeuša Košćuška 1, 11000 Belgrade, Serbia;
| | - Marija Ivanov
- Department of Plant Physiology, Institute for Biological Research “Siniša Stanković”—National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11000 Belgrade, Serbia; (M.I.); (J.G.)
| | - Dejan Stojković
- Department of Plant Physiology, Institute for Biological Research “Siniša Stanković”—National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11000 Belgrade, Serbia; (M.I.); (J.G.)
- Correspondence: ; Tel.: +381-112078419
| | - Jasmina Glamočlija
- Department of Plant Physiology, Institute for Biological Research “Siniša Stanković”—National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11000 Belgrade, Serbia; (M.I.); (J.G.)
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26
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Zhong K, Liu Z, Lu Y, Xu X. Effects of yeast β-glucans for the prevention and treatment of upper respiratory tract infection in healthy subjects: a systematic review and meta-analysis. Eur J Nutr 2021; 60:4175-4187. [PMID: 33900466 DOI: 10.1007/s00394-021-02566-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 04/16/2021] [Indexed: 01/10/2023]
Abstract
PURPOSE Yeast β-glucans are known for their immune-modulating effects; however, their effects on human upper respiratory tract infections (URTIs) remain unclear. The aim of the present study was to use a systematic review and meta-analysis approach to investigate the effects of yeast β-glucans for the prevention and treatment of URTIs in healthy subjects. METHODS Databases including Pubmed, Web of Science, EMBASE and the Cochrane Library were searched and 13 RCTs investigating the effects of yeast β-glucans on the incidence, duration, and severity of URTIs in healthy subjects were included. RESULTS The results showed that compared to the placebo group, yeast β-glucan could significantly reduce the incidence of URTIs (OR = 0.345, 95% CI = 0.192 to 0.620, p < 0.001), decrease the average number of URTI episodes (SMD = - 0.315, 95% CI = - 0.500 to - 0.130, p < 0.05), and decrease the duration of URTIs (SMD = - 0.312, 95% CI = - 0.561 to - 0.064, p < 0.001). Improved severity of symptoms was found in yeast β-glucan group compared to the placebo group in the majority of included studies. In addition, yeast β-glucan was well tolerated and safe in general. CONCLUSION These findings suggest a positive effect of yeast β-glucans on human URTIs. However, due to the high heterogeneity and small number of included studies, more high-quality research and clinical trials are warranted.
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Affiliation(s)
- Kunxia Zhong
- Center for Molecular Metabolism, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing, 210094, People's Republic of China
| | - Zhiqin Liu
- Center for Molecular Metabolism, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing, 210094, People's Republic of China
| | - Yao Lu
- Center for Molecular Metabolism, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing, 210094, People's Republic of China
| | - Xi Xu
- Center for Molecular Metabolism, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing, 210094, People's Republic of China.
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27
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van Steenwijk HP, Bast A, de Boer A. Immunomodulating Effects of Fungal Beta-Glucans: From Traditional Use to Medicine. Nutrients 2021; 13:1333. [PMID: 33920583 PMCID: PMC8072893 DOI: 10.3390/nu13041333] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/09/2021] [Accepted: 04/15/2021] [Indexed: 12/16/2022] Open
Abstract
The importance of a well-functioning and balanced immune system has become more apparent in recent decades. Various elements have however not yet been uncovered as shown, for example, in the uncertainty on immune system responses to COVID-19. Fungal beta-glucans are bioactive molecules with immunomodulating properties. Insights into the effects and function of beta-glucans, which have been used in traditional Chinese medicine for centuries, advances with the help of modern immunological and biotechnological methods. However, it is still unclear into which area beta-glucans fit best: supplements or medicine? This review has highlighted the potential application of fungal beta-glucans in nutrition and medicine, reviewing their formulation, efficacy, safety profile, and immunomodulating effects. The current status of dietary fungal glucans with respect to the European scientific requirements for health claims related to the immune system and defense against pathogens has been reviewed. Comparing the evidence base of the putative health effects of fungal beta-glucan supplements with the published guidance documents by EFSA on substantiating immune stimulation and pathogen defense by food products shows that fungal beta-glucans could play a role in supporting and maintaining health and, thus, can be seen as a good health-promoting substance from food, which could mean that this effect may also be claimed if approved. In addition to these developments related to food uses of beta-glucan-containing supplements, beta-glucans could also hold a novel position in Western medicine as the concept of trained immunity is relatively new and has not been investigated to a large extent. These innovative concepts, together with the emerging success of modern immunological and biotechnological methods, suggest that fungal glucans may play a promising role in both perspectives, and that there are possibilities for traditional medicine to provide an immunological application in both medicine and nutrition.
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Affiliation(s)
- Hidde P. van Steenwijk
- Campus Venlo, Food Claims Centre Venlo, Faculty of Science and Engineering, Maastricht University, 5911 BV Venlo, The Netherlands;
| | - Aalt Bast
- Campus Venlo, University College Venlo, Maastricht University, 5911 BV Venlo, The Netherlands;
- Department of Pharmacology & Toxicology, Medicine and Life Sciences, Faculty of Health, Maastricht University, 5911 BV Venlo, The Netherlands
| | - Alie de Boer
- Campus Venlo, Food Claims Centre Venlo, Faculty of Science and Engineering, Maastricht University, 5911 BV Venlo, The Netherlands;
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Wzorek-Łyczko K, Piwowarczyk A, Kuchar E. Protocol of the study: the effectiveness of pleuran in the treatment of acute gastroenteritis in children-a randomised, placebo-controlled, double-blind trial (EPTAGE). BMJ Open 2021; 11:e042370. [PMID: 33707267 PMCID: PMC7957130 DOI: 10.1136/bmjopen-2020-042370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
INTRODUCTION Acute gastroenteritis is one of the most common causes of children's morbidity and mortality globally. Oral or intravenous rehydration was proven effective in reducing the mortality rates in acute gastroenteritis, although it does not affect the course of the disease. Attempts to identify new therapeutic methods effective in reducing the symptoms of diarrhoea are of interest. Pleuran's potential immunomodulatory effect in acute gastrointestinal infection relies on the stimulation of innate immunity. The effectiveness of pleuran (β-(1,3/1,6)-d-glucan) administration to treat acute infectious diarrhoea remains unknown. This study evaluates the efficacy of pleuran in reducing diarrhoea duration and the severity of acute gastroenteritis symptoms in children. METHODS AND ANALYSIS Our study is a randomised, double-blind, placebo-controlled superiority trial with two parallel groups and a 1:1 allocation ratio. A total of 120 children aged 2-10 years hospitalised or requiring a visit to the emergency department because of acute gastroenteritis will be randomly assigned to receive either pleuran oral suspension in the experimental group or matching placebo in the control group. The primary outcome measure will be the duration of diarrhoea. We will analyse the results in both intention-to-treat and per-protocol approaches. ETHICS AND DISSEMINATION The Bioethics Committee of The Medical University of Warsaw approved the study protocol (approval number: KB/45/2018). Written informed consent of the patients' caregivers participating in the study will be obligatory. The results of this study will be published in a medical journal, regardless of whether they confirm or deny the research hypothesis. TRIAL REGISTRATION NUMBER NCT03988257; Pre-results.
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Affiliation(s)
- Katarzyna Wzorek-Łyczko
- The Department of Pediatrics with Clinical Assessment Unit, Medical University of Warsaw, Warsaw, Poland
| | - Anna Piwowarczyk
- The Department of Pediatrics with Clinical Assessment Unit, Medical University of Warsaw, Warsaw, Poland
| | - Ernest Kuchar
- The Department of Pediatrics with Clinical Assessment Unit, Medical University of Warsaw, Warsaw, Poland
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29
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Gutiérrez-González LH, Juárez E, Carranza C, Carreto-Binaghi LE, Alejandre A, Cabello-Gutiérrrez C, Gonzalez Y. Immunological Aspects of Diagnosis and Management of Childhood Tuberculosis. Infect Drug Resist 2021; 14:929-946. [PMID: 33727834 PMCID: PMC7955028 DOI: 10.2147/idr.s295798] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 02/11/2021] [Indexed: 12/24/2022] Open
Abstract
The diagnosis of tuberculosis (TB) in children is difficult because of the low sensitivity and specificity of traditional microbiology techniques in this age group. Whereas in adults the culture of Mycobacterium tuberculosis (M. tuberculosis), the gold standard test, detects 80% of positive cases, it only detects around 30-40% of cases in children. The new methods based on the immune response to M. tuberculosis infection could be affected by many factors. It is necessary to evaluate the medical record, clinical features, presence of drug-resistant M. tuberculosis strains, comorbidities, and BCG vaccination history for the diagnosis in children. There is no ideal biomarker for all TB cases in children. A new strategy based on personalized diagnosis could be used to evaluate specific molecules produced by the host immune response and make therapeutic decisions in each child, thereby changing standard immunological signatures to personalized signatures in TB. In this way, immune diagnosis, prognosis, and the use of potential immunomodulators as adjunct TB treatments will meet personalized treatment.
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Affiliation(s)
| | - Esmeralda Juárez
- Microbiology Department, National Institute for Respiratory Diseases Ismael Cosío Villegas, Mexico City, Mexico
| | - Claudia Carranza
- Microbiology Department, National Institute for Respiratory Diseases Ismael Cosío Villegas, Mexico City, Mexico
| | - Laura E Carreto-Binaghi
- Microbiology Department, National Institute for Respiratory Diseases Ismael Cosío Villegas, Mexico City, Mexico
| | - Alejandro Alejandre
- Pediatric Clinic, National Institute for Respiratory Diseases Ismael Cosío Villegas, Mexico City, Mexico
| | - Carlos Cabello-Gutiérrrez
- Virology and Mycology Department, National Institute for Respiratory Diseases Ismael Cosío Villegas, Mexico City, Mexico
| | - Yolanda Gonzalez
- Microbiology Department, National Institute for Respiratory Diseases Ismael Cosío Villegas, Mexico City, Mexico
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30
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Ikewaki N, Iwasaki M, Kurosawa G, Rao KS, Lakey-Beitia J, Preethy S, Abraham SJ. β-glucans: wide-spectrum immune-balancing food-supplement-based enteric (β-WIFE) vaccine adjuvant approach to COVID-19. Hum Vaccin Immunother 2021; 17:2808-2813. [PMID: 33651967 PMCID: PMC7938654 DOI: 10.1080/21645515.2021.1880210] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Conventional vaccines to combat COVID-19 through different approaches are at various stages of development. The complexity of COVID-19 such as the potential mutations of the virus leading to antigenic drift and the uncertainty on the duration of the immunity induced by the vaccine have hampered the efforts to control the COVID-19 pandemic. Thus, we suggest an alternative interim treatment strategy based on biological response modifier glucans such as the Aureobasidium pullulans AFO-202-derived β-glucan, which has been reported to induce trained immunity, akin to that induced by the Bacille Calmette-Guérin vaccine, by epigenetic modifications at the central level in the bone marrow. These β-glucans act as pathogen-associated molecular patterns, activating mucosal immunity by binding with specific pathogen recognition receptors such as dectin-1 and inducing both the adaptive and innate immunity by reaching distant lymphoid organs. β-Glucans have also been used as immune adjuvants for vaccines such as the influenza vaccine. Therefore, until a conventional vaccine is widely available, an orally consumable vaccine adjuvant that acts like biosimilars, termed as the wide-spectrum immune-balancing food-supplement-based enteric (β-WIFE) vaccine adjuvant approach, with well-reported safety is worth in-depth investigation and can be considered for a clinical trial.
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Affiliation(s)
- Nobunao Ikewaki
- Department of Medical Life Science, Kyushu University of Health and Welfare, Nobeoka, Japan.,Institute of Immunology, Junsei Educational Institute, Nobeoka, Miyazaki, Japan
| | - Masaru Iwasaki
- Centre for Advancing Clinical Research (CACR), University of Yamanashi - School of Medicine, Chuo, Japan
| | - Gene Kurosawa
- Department of Academic Research Support Promotion Facility, Center for Research Promotion and Support, Fujita Health University, Aichi, Japan
| | - Kosagi-Sharaf Rao
- Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), City of Knowledge, Panama City, Panama
| | - Johant Lakey-Beitia
- Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), City of Knowledge, Panama City, Panama
| | - Senthilkumar Preethy
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), Chennai, India
| | - Samuel Jk Abraham
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), Chennai, India.,Edogawa Evolutionary Laboratory of Science (EELS), Edogawa Hospital, Tokyo, Japan.,The Mary-Yoshio Translational Hexagon (MYTH), Nichi-In Centre for Regenerative Medicine (NCRM), Chennai, India.,Biomaterials and Cell Biology Division, JBM Inc, Tokyo, Japan.,Immune Systems R & D Division, GN Corporation Co. Ltd, Kofu, Japan
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31
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Venturella G, Ferraro V, Cirlincione F, Gargano ML. Medicinal Mushrooms: Bioactive Compounds, Use, and Clinical Trials. Int J Mol Sci 2021; 22:ijms22020634. [PMID: 33435246 PMCID: PMC7826851 DOI: 10.3390/ijms22020634] [Citation(s) in RCA: 87] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 01/04/2021] [Accepted: 01/07/2021] [Indexed: 12/18/2022] Open
Abstract
Medicinal mushrooms have important health benefits and exhibit a broad spectrum of pharmacological activities, including antiallergic, antibacterial, antifungal, anti-inflammatory, antioxidative, antiviral, cytotoxic, immunomodulating, antidepressive, antihyperlipidemic, antidiabetic, digestive, hepatoprotective, neuroprotective, nephroprotective, osteoprotective, and hypotensive activities. The growing interest in mycotherapy requires a strong commitment from the scientific community to expand clinical trials and to propose supplements of safe origin and genetic purity. Bioactive compounds of selected medicinal mushrooms and their effects and mechanisms in in vitro and in vivo clinical studies are reported in this review. Besides, we analyzed the therapeutic use and pharmacological activities of mushrooms.
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Affiliation(s)
- Giuseppe Venturella
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, Bldg. 5, I-90128 Palermo, Italy; (V.F.); (F.C.)
- Correspondence: ; Tel.: +39-09123891234
| | - Valeria Ferraro
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, Bldg. 5, I-90128 Palermo, Italy; (V.F.); (F.C.)
| | - Fortunato Cirlincione
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, Bldg. 5, I-90128 Palermo, Italy; (V.F.); (F.C.)
| | - Maria Letizia Gargano
- Department of Agricultural and Environmental Science, University of Bari Aldo Moro, Via Amendola 165/A, I-70126 Bari, Italy;
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32
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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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Evaluation of the Cultivated Mushroom Pleurotus ostreatus Basidiocarps Using Vibration Spectroscopy and Chemometrics. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10228156] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Fruiting bodies (basidiocarps) of the cultivated mushroom Pleurotus ostreatus (16 strains) were characterized by vibration spectroscopy and chemometrics. According to organic elemental analysis and Megazyme assay, the basidiocarps contained ~6.2–17.5% protein and ~18.8–58.2% total glucans. The neutral sugar analysis confirmed that glucose predominated in all the samples (~71.3–94.4 mol%). Fourier-transformed (FT) mid- and near-infrared (FT MIR, FT NIR) and FT Raman spectra of the basidiocarps were recorded, and the characteristic bands of proteins, glucans and chitin were assigned. The samples were discriminated based on principal component analysis (PCA) of the spectroscopic data in terms of biopolymeric composition. The partial least squares regression (PLSR) models based on first derivatives of the vibration spectra were obtained for the prediction of the macromolecular components, and the regression coefficients R2 and root mean square errors (RMSE) were calculated for the calibration (cal) of proteins (R2cal 0.981–0.994, RMSEcal ~0.3–0.5) and total glucans (R2cal 0.908–0.996, RMSEcal ~0.6–3.0). According to cross-validation (CV) diagnosis, the protein models were more precise and accurate (R2cv 0.901–0.970, RMSEcv ~0.6–1.1) than the corresponding total glucan models (R2cv 0.370–0.804, RMSEcv ~4.7–8.5) because of the wide structural diversity of these polysaccharides. Otherwise, the Raman band of phenylalanine ring breathing vibration at 1004 cm−1 was used for direct quantification of proteins in P. ostreatus basidiocarps (R ~0.953). This study showed that the combination of vibration spectroscopy with chemometrics is a powerful tool for the evaluation of culinary and medicinal mushrooms, and this approach can be proposed as an alternative to common analytical methods.
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Esposito S, Jones MH, Feleszko W, Martell JAO, Falup-Pecurariu O, Geppe N, Martinón-Torres F, Shen KL, Roth M, Principi N. Prevention of New Respiratory Episodes in Children with Recurrent Respiratory Infections: An Expert Consensus Statement. Microorganisms 2020; 8:E1810. [PMID: 33213053 PMCID: PMC7698530 DOI: 10.3390/microorganisms8111810] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/01/2020] [Accepted: 11/13/2020] [Indexed: 02/06/2023] Open
Abstract
In healthy infants and young children, the development of respiratory tract infections (RTIs) is extremely common. In this paper, we present an international consensus of the available approaches for the prevention of recurrent RTIs in children, including the atopic/allergic ones as well as those with asthma. Few convincing measures for reducing the frequency and clinical relevance of recurrent respiratory episodes in RTI-prone children have been developed until now. Among the most recently suggested measures, immunotherapy is attractive, but only for OM-85 is there a sufficient number of well-conducted clinical trials confirming efficacy in RTIs prevention with an adequate safety profile. In the case of probiotics, it is not clear which bacteria can offer the best results and which dosage and schedule of administration are the most effective. The problems of dosage and the schedule of administration are not solved also for vitamin D, despite some promising efficacy results. While we wait for new knowledge, the elimination or reduction as much as possible of the environmental factors that favor RTIs, vaccination when available and/or indicated, and the systematic application of the traditional methods for infection prevention, such as hand washing, remain the best measures to prevent recurrent infections in RTI-prone children.
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Affiliation(s)
- Susanna Esposito
- Pediatric Clinic, Pietro Barilla Children’s Hospital, University of Parma, 43126 Parma, Italy
| | - Marcus Herbert Jones
- School of Medicine, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre (RS) 90619-900, Brazil;
| | - Wojciech Feleszko
- Department of Pediatric Pneumonology and Allergy, The Medical University of Warsaw, 00-927 Warsaw, Poland;
| | - José A. Ortega Martell
- Department of Immunology, Universidad Autónoma del Estado de Hidalgo, Pachuca, Hidalgo 42082, Mexico;
| | - Oana Falup-Pecurariu
- Faculty of Medicine, Transilvania University, Children’s Clinic Hospital, 500036 Brasov, Romania;
| | - Natalia Geppe
- Department of Paediatrics, Sechenov First Moscow State Medical University, 115093 Moscow, Russia;
| | - Federico Martinón-Torres
- Translational Pediatrics and Infectious Diseases, Department of Pediatrics, Hospital Clínico Universitario de Santiago de Compostela, 15706 Santiago de Compostela, Spain;
| | - Kun-Ling Shen
- China National Clinical Research Center for Respiratory Diseases, Department of Respiratory Medicine, Capital Medical University, National Center for Children’s Health, Beijing 100045, China;
| | - Michael Roth
- Pulmonary Cell Research and Pneumology, Department of Biomedicine and Internal Medicine, University Hospital Basel, 4002 Basel, Switzerland;
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Taefehshokr N, Taefehshokr S, Hemmat N, Heit B. Covid-19: Perspectives on Innate Immune Evasion. Front Immunol 2020; 11:580641. [PMID: 33101306 PMCID: PMC7554241 DOI: 10.3389/fimmu.2020.580641] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 09/11/2020] [Indexed: 12/13/2022] Open
Abstract
The ongoing outbreak of Coronavirus disease 2019 infection achieved pandemic status on March 11, 2020. As of September 8, 2020 it has caused over 890,000 mortalities world-wide. Coronaviral infections are enabled by potent immunoevasory mechanisms that target multiple aspects of innate immunity, with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) able to induce a cytokine storm, impair interferon responses, and suppress antigen presentation on both MHC class I and class II. Understanding the immune responses to SARS-CoV-2 and its immunoevasion approaches will improve our understanding of pathogenesis, virus clearance, and contribute toward vaccine and immunotherepeutic design and evaluation. This review discusses the known host innate immune response and immune evasion mechanisms driving SARS-CoV-2 infection and pathophysiology.
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Affiliation(s)
- Nima Taefehshokr
- Department of Microbiology and Immunology, Center for Human Immunology, The University of Western Ontario, London, ON, Canada
| | - Sina Taefehshokr
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nima Hemmat
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Bryan Heit
- Department of Microbiology and Immunology, Center for Human Immunology, The University of Western Ontario, London, ON, Canada
- Robarts Research Institute, London, ON, Canada
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36
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Govers C, Tang Y, Stolte EH, Wichers HJ, Mes JJ. Wheat-derived arabinoxylans reduced M2-macrophage functional activity, but enhanced monocyte-recruitment capacity. Food Funct 2020; 11:7073-7083. [PMID: 32725025 DOI: 10.1039/d0fo00316f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The immunomodulatory properties of non-digestible polysaccharides (NDPs) have been recognized in in vitro and in vivo studies. The latter mostly demonstrated altered frequencies and inflammatory status of immune cells as clinical parameters. Most of the NDP activity will be exerted in the intestine where they can directly interact with macrophages. The predominant macrophage phenotype in the intestine is M2-like, with M1-like macrophages arising during inflammation. Here, we investigated transcriptional and functional impact on these macrophage phenotypes by NDP-treatment (i.e. yeast-derived soluble β-glucan (yeast-βG), apple-derived RG-I (apple-RGI), shiitake-derived β-glucan (shiitake-βG) or wheat-derived arabinoxylan (wheat-AX)). Wheat-AX, and to a lesser extent shiitake-βG and apple-RGI but not yeast-βG, reduced endocytosis and antigen processing capacity of M1- and M2-like macrophages. Moreover, the NDPs, and most notably wheat-AX, strongly induced transcription and secretion of a unique set of cytokines and chemokines. Conditioned medium from wheat-AX-treated M2-like macrophages subsequently demonstrated strongly increased monocyte recruitment capacity. These findings are in line with clinically observed immunomodulatory aspects of NDPs making it tempting to speculate that clinical activity of some NDPs is mediated through enhanced chemoattraction and modifying activity of intestinal immune cells.
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Affiliation(s)
- Coen Govers
- Wageningen - Food & Biobased Research, Wageningen University & Research, Wageningen, The Netherlands.
| | - Yongfu Tang
- Wageningen - Food & Biobased Research, Wageningen University & Research, Wageningen, The Netherlands. and Laboratory of Food Chemistry, Wageningen University & Research, Wageningen, The Netherlands and Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, China
| | - Ellen H Stolte
- Host-Microbe Interactomics Group, Animal Sciences Department, Wageningen University & Research, Wageningen, The Netherlands
| | - Harry J Wichers
- Wageningen - Food & Biobased Research, Wageningen University & Research, Wageningen, The Netherlands. and Laboratory of Food Chemistry, Wageningen University & Research, Wageningen, The Netherlands
| | - Jurriaan J Mes
- Wageningen - Food & Biobased Research, Wageningen University & Research, Wageningen, The Netherlands.
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Geller A, Yan J. Could the Induction of Trained Immunity by β-Glucan Serve as a Defense Against COVID-19? Front Immunol 2020; 11:1782. [PMID: 32760409 PMCID: PMC7372085 DOI: 10.3389/fimmu.2020.01782] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 07/03/2020] [Indexed: 12/22/2022] Open
Abstract
As the SARS-CoV-2 virus wreaks havoc on the populations, health care infrastructures and economies of nations around the world, finding ways to protect health care workers and bolster immune responses in the general population while we await an effective vaccine will be the difference between life and death for many people. Recent studies show that innate immune populations may possess a form of memory, termed Trained Immunity (TRIM), where innate immune cells undergo metabolic, mitochondrial, and epigenetic reprogramming following exposure to an initial stimulus that results in a memory phenotype of enhanced immune responses when exposed to a secondary, heterologous, stimulus. Throughout the literature, it has been shown that the induction of TRIM using such inducers as the BCG vaccine and β-glucan can provide protection through altered immune responses against a range of viral infections. Here we hypothesize a potential role for β-glucan in decreasing worldwide morbidity and mortality due to COVID-19, and posit several ideas as to how TRIM may actually shape the observed epidemiological phenomena related to COVID-19. We also evaluate the potential effects of β-glucan in relation to the immune dysregulation and cytokine storm observed in COVID-19. Ultimately, we hypothesize that the use of oral β-glucan in a prophylactic setting could be an effective way to boost immune responses and abrogate symptoms in COVID-19, though clinical trials are necessary to confirm the efficacy of this treatment and to further examine differential effects of β-glucan's from various sources.
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Affiliation(s)
- Anne Geller
- Department of Microbiology and Immunology, University of Louisville School of Medicine, Louisville, KY, United States
- Immuno-Oncology Program, Division of Immunotherapy, Department of Surgery, The James Graham Brown Cancer Center, University of Louisville School of Medicine, Louisville, KY, United States
| | - Jun Yan
- Immuno-Oncology Program, Division of Immunotherapy, Department of Surgery, The James Graham Brown Cancer Center, University of Louisville School of Medicine, Louisville, KY, United States
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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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Dkhil MA, Diab MSM, Lokman MS, El-Sayed H, Bauomy AA, Al-Shaebi EM, Al-Quraishy S. Nephroprotective effect of Pleurotus ostreatus extract against cadmium chloride toxicity in rats. AN ACAD BRAS CIENC 2020; 92:e20191121. [PMID: 32428092 DOI: 10.1590/0001-3765202020191121] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 11/07/2019] [Indexed: 01/15/2023] Open
Abstract
Cadmium, present in the environment, accumulates in different organs of animals and humans, and has deleterious effects on the kidney. In this study, we investigated the protective effects of the methanolic extract of Pleurotus ostreatus in comparison with silymarin on renal function in cadmium-intoxicated rats for five days. Rats intraperitoneally injected with cadmium chloride (1 mg/kg). These rats were treated with either P. ostreatus extract (200 mg/kg) or silymarin to investigate the protective effects of the extract. Cadmium treatment induced significant histopathological impairments and increased cadmium levels, DNA fragmentation, and renal oxidative stress. However, treatment with P. ostreatus extract or silymarin improved the pathology, reduced the level of cadmium in renal tissue, and restored DNA fragmentation. In addition, a significant reduction in lipid peroxidation and reactive oxygen species levels, and a significant increase in the levels of glutathione and catalase activity were observed. Thus, protective effects of P. ostreatus extract to its components. Chromatographic analysis of the P. ostreatus confirmed the presence of five phenolics (gallic acid, chlorogenic acid, catechin, propyl gallate, and cinnamic acid) that exhibit strong antioxidant properties as free radical scavengers. Therefore, our findings demonstrate that treatment with P. ostreatus extract protects against cadmium-induced nephrotoxicity in female rats.
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Affiliation(s)
- Mohamed A Dkhil
- College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Marwa S M Diab
- Molecular Drug Evaluation Department, National Organization for Drug Control & Research/ NODCAR, Giza, Egypt
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Efficacy of Pleuran ( β-Glucan from Pleurotus ostreatus) in the Management of Herpes Simplex Virus Type 1 Infection. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:8562309. [PMID: 32419831 PMCID: PMC7201855 DOI: 10.1155/2020/8562309] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 03/24/2020] [Indexed: 11/26/2022]
Abstract
One of the highly prevalent viral pathogens among children and adults causing infection, clinically presenting as herpes labialis, is herpes simplex virus type 1 (HSV-1). The long-term administration of acyclovir, a standard regimen for therapy against HSV-1 infections, can cause viral resistance against this drug. Therefore, the development of natural drugs with low toxicity that are able to enhance host antiviral defense against HSV infection is needed. β-Glucans represent a type of biologically active molecules possessing antiviral properties. The goal of this study was to investigate the clinical and immunomodulatory effect of β-glucan pleuran (insoluble β-1,3/1,6-D-glucan isolated from Pleurotus ostreatus) based supplements on the duration and intensity of herpes symptoms and on the incidence rate and duration of acute respiratory symptoms and intercurrent diseases in HSV-1 positive patients. Ninety patients were randomised into active and placebo groups. Active treatment with pleuran in systemic application caused a significantly shorter duration of herpes simplex symptoms compared to the placebo group. During the preventive phase (120 days), the duration and severity of respiratory symptoms were lower in the active group compared to the placebo group; however, a significant difference was found only in the case of cough. No significant side effects were observed during both phases of the clinical trial (acute and preventive). Obtained results suggest that the use of pleuran seems to be a promising approach in the treatment of acute HSV-1 with beneficial effect on the respiratory tract symptoms and infections.
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Use of a Pleurotus ostreatus Complex Cell Wall Extract as Elicitor of Plant Defenses: From Greenhouse to Field Trial. Molecules 2020; 25:molecules25051094. [PMID: 32121447 PMCID: PMC7179115 DOI: 10.3390/molecules25051094] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 02/25/2020] [Accepted: 02/26/2020] [Indexed: 11/24/2022] Open
Abstract
Fungi constitute an abundant source of natural polysaccharides, some of them harboring original structures which can induce responses in mammalian or plant cells. An alkaline extract from the edible mushroom Pleurotus ostreatus has been obtained and called Pleuran complex cell wall extract (CCWE). It consists of a glucan-peptide complex whose components fall in a quite broad range of molecular weights, from 30 to 80 kDa. Pleuran extract has been tested on cultivated plants in laboratory conditions and also during field trial for its capacity to stimulate plant defenses in response to pathogen attack. Following Pleuran CCWE treatment, enhanced levels of various biochemical markers associated with plant responses have been observed, including enzymatic activities (e.g., peroxidase) or expression of some pathogenesis-related genes. In addition, during field experiments, we have noticed significant reductions in disease symptom levels in relation to different plant/pathogen systems (wheat/septoria, vine/mildew). These results confirmed that Pleuran CCWE could be used as an elicitor of plant defenses and could help in reducing pesticide applications against plant pathogens.
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Kumar K. Nutraceutical Potential and Processing Aspects of Oyster Mushrooms (PleurotusSpecies). CURRENT NUTRITION & FOOD SCIENCE 2020. [DOI: 10.2174/1573401314666181015111724] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:Oyster mushrooms (Pleurotus species) have gained considerable attention of food technologist and nutritionist for their nutraceutical properties. Oyster mushrooms are considered as functional foods due to their richness in functional food ingredients. In recent times, consumption of these mushrooms has increased considerably due to their numerous health benefits. These are potential sources of bioactive components, which are sufficient enough for prevention and treatment of various lifestyle diseases. There are about 200 different species in the genus Pleurotus and these are commonly referred to as “oyster mushrooms”.Objective:The study aimed to grasp a collective information on nutraceutical and processing aspects of highly perishable but nutritious oyster mushroomResults:Pleurotus ostreatus is the most commonly consumed species all over the world due to its superior flavor, taste and nutraceutical properties. It acts as a source of natural antioxidants which might be beneficial for human health in preventing or reducing oxidative damage. Nutritionally, these species are rich sources of proteins, dietary fibres, β-glucan, vitamin B-complex, vitamin C and minerals. They contain higher proportions of certain amino acids such as methionine, cystine and aspartic acid than other edible mushrooms. Oyster mushrooms have been reported to possess hypocholesterolemic, anti-bacterial, anti-diabetic, anti-oxidant, anti-arthritic, anti-carcinogenic, hepatoprotective, anti-viral activities and act as natural resources of immunotherapy activities. The use of these mushrooms can overcome the deficiency of protein in the developing countries where there is unavailability or unacceptability of good quality proteins from animal sources because of religious restrictions.Conclusion:Because of the occurrence of abundant nutritional ingredients and other bioactive components in P. ostreatus, they have a great scope as a potential source for the development of functional or specialty foods for value addition of deficient foods so as to alleviate the nutritional deficiency diseases from society.
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Affiliation(s)
- Krishan Kumar
- Department of Food Technology, Akal College of Agriculture, Eternal University, Baru Sahib, Sirmour, HP-173101, India
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43
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Efficacy and safety of oral and inhalation commercial beta-glucan products: Systematic review of randomized controlled trials. Clin Nutr 2020; 39:40-48. [DOI: 10.1016/j.clnu.2019.01.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 12/22/2018] [Accepted: 01/07/2019] [Indexed: 01/08/2023]
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Varghese R, Dalvi YB, Lamrood PY, Shinde BP, Nair CKK. Historical and current perspectives on therapeutic potential of higher basidiomycetes: an overview. 3 Biotech 2019; 9:362. [PMID: 31572645 DOI: 10.1007/s13205-019-1886-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Accepted: 08/26/2019] [Indexed: 12/18/2022] Open
Abstract
Mushrooms are macroscopic fungi which can be either epigeous or hypogeous and is estimated to be 140,000 on earth, yet only 10% are known. Since ancient time, it played a diverse role in human history for mycolatry, mycophagy and as medicine in folklore and religion. Many Asian and western countries consider mushrooms as panacea for a large number of diseases and utilized for consumption as a gourmet food for its taste as well as flavor. In recent years, scientific research fraternities have confirmed that various extracts and metabolites of mushrooms used traditionally are able to treat a wide range of diseases due to their balanced modulation of multiple targets thereby providing a greater therapeutic effect or equivalent curative effect to that of modern medicine. Medicinal mushrooms especially those belonging to higher basidiomycete groups are reservoir of bioactive compounds with multiple therapeutic properties. The present review provides historical importance as well as an updated information on pharmacologically relevant higher basidiomycetes belong to the genus Agaricus, Auricularia, Phellinus, Ganoderma, Pleurotus, Trametes and Lentinus and their biologically active secondary metabolites. This will help the researchers to understand various type of secondary metabolites, their therapeutic role and related in vivo or in vitro work at a glance. The mounting evidences from several scientific community across the globe, regarding various therapeutic applications of mushroom extracts, unarguably make it an advance research area worth mass attention.
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Affiliation(s)
- Ruby Varghese
- 1Pushpagiri Research Centre, Pushpagiri Institute of Medical Sciences and Research Centre, Tiruvalla, Kerala 689101 India
- MACFAST, Tiruvalla, Kerala India
| | - Yogesh Bharat Dalvi
- 1Pushpagiri Research Centre, Pushpagiri Institute of Medical Sciences and Research Centre, Tiruvalla, Kerala 689101 India
| | - Prasad Y Lamrood
- 3Department of Botany, Ahmednagar College (Affiliated to Savitribai Phule Pune University), Ahmednagar, Maharashtra India
| | - Bharat P Shinde
- Vidya Pratishthan's Arts Science Commerce College, Baramati, Maharashtra India
| | - C K K Nair
- MACFAST, Tiruvalla, Kerala India
- St. Gregorios Dental College and Research Centre, Kothamangalam, Kerala India
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Acceptance of a New Food Enriched in β-Glucans among Adolescents: Effects of Food Technology Neophobia and Healthy Food Habits. Foods 2019; 8:foods8100433. [PMID: 31547483 PMCID: PMC6835998 DOI: 10.3390/foods8100433] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 09/17/2019] [Accepted: 09/19/2019] [Indexed: 12/30/2022] Open
Abstract
The aim of the present study was to evaluate adolescents’ acceptability of a novel flat bread modified by substituting a part of the wheat flour content with a Pleurotus ostreatus powder rich in β-glucans, which can potentially provide health benefits. The effects of food technology neophobia and adolescents’ food habits on hedonic perception of the developed product was also investigated. Two hundred and two adolescents (age range: 13–18 years; girls: 49.5%; boys: 50.5%) evaluated their liking of two flat breads, one with mushroom powder added and one control sample with only wheat flour. Sample acceptance was studied in relation to age, gender, neophobic traits and healthy food habits. The results showed that, even if the sample with mushroom powder added was generally well accepted, there were different hedonic responses among adolescents according to their food technology neophobia level and healthy habits. In particular, adolescents with a low food technology neophobia level and healthy eating behavior mostly appreciated the sample with mushroom powder added, whereas subjects with neophobic and unhealthy eating behavior gave comparable hedonic scores to the two samples. Moreover, a negative correlation was found between food technology neophobia level and healthy food habits. In conclusion, it is possible to develop a β-glucan-enriched product appreciated by adolescents using a sustainable ingredient. The developed product may be used to achieve the daily recommended intake of β-glucans by adolescents.
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Baeva E, Bleha R, Lavrova E, Sushytskyi L, Čopíková J, Jablonsky I, Klouček P, Synytsya A. Polysaccharides from Basidiocarps of Cultivating Mushroom Pleurotus ostreatus: Isolation and Structural Characterization. Molecules 2019; 24:E2740. [PMID: 31357717 PMCID: PMC6696160 DOI: 10.3390/molecules24152740] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 07/22/2019] [Accepted: 07/27/2019] [Indexed: 12/23/2022] Open
Abstract
Oyster mushrooms are an interesting source of biologically active glucans and other polysaccharides. This work is devoted to the isolation and structural characterization of polysaccharides from basidiocarps of the cultivated oyster mushroom, Pleurotus ostreatus. Five polysaccharidic fractions were obtained by subsequent extraction with cold water, hot water and two subsequent extractions with 1 m sodium hydroxide. Branched partially methoxylated mannogalactan and slightly branched (1→6)-β-d-glucan predominated in cold- and hot-water-soluble fractions, respectively. Alternatively, these polysaccharides were obtained by only hot water extraction and subsequent two-stage chromatographic separation. The alkali-soluble parts originating from the first alkali extraction were then fractionated by dissolution in dimethyl sulfoxide (DMSO). The polysaccharide insoluble in DMSO was identified as linear (1→3)-α-d-glucan, while branched (1→3)(1→6)-β-d-glucans were found to be soluble in DMSO. The second alkaline extract contained the mentioned branched β-d-glucan together with some proteins. Finally, the alkali insoluble part was a cell wall complex of chitin and β-d-glucans.
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Affiliation(s)
- Ekaterina Baeva
- Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, University of Chemistry and Technology in Prague, Technická 5, 166 28 Praha 6 Dejvice, Czech Republic
| | - Roman Bleha
- Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, University of Chemistry and Technology in Prague, Technická 5, 166 28 Praha 6 Dejvice, Czech Republic
| | - Ekaterina Lavrova
- Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, University of Chemistry and Technology in Prague, Technická 5, 166 28 Praha 6 Dejvice, Czech Republic
| | - Leonid Sushytskyi
- Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, University of Chemistry and Technology in Prague, Technická 5, 166 28 Praha 6 Dejvice, Czech Republic
| | - Jana Čopíková
- Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, University of Chemistry and Technology in Prague, Technická 5, 166 28 Praha 6 Dejvice, Czech Republic
| | - Ivan Jablonsky
- Department of Gardening, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Praha 6 Suchdol, Czech Republic
| | - Pavel Klouček
- Department of Crop Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Praha 6 Suchdol, Czech Republic
| | - Andriy Synytsya
- Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, University of Chemistry and Technology in Prague, Technická 5, 166 28 Praha 6 Dejvice, Czech Republic.
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Use of Dietary Supplements among Spanish Pediatricians in Daily Practice: A Cross-Sectional Survey Study. J Nutr Metab 2019; 2019:5819305. [PMID: 31428471 PMCID: PMC6681612 DOI: 10.1155/2019/5819305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 06/16/2019] [Indexed: 11/18/2022] Open
Abstract
A cross-sectional survey study was designed to gather information on the use of dietary supplements by Spanish pediatricians. The study questionnaire was completed by 433 pediatricians (62% men, mean age 52.5 years) throughout the country. They also provided data on 10 of their patients (n = 4304) in which synbiotics, immune stimulants, and omega-3 polyunsaturated fatty acids (PUFAs) had been prescribed. Synbiotics were used by 92% of pediatricians, immune stimulants by 80.4%, and omega-3 PUFAs by 75.1%. Synbiotics were mainly used combined with antibiotics (92.6%) and for gastrointestinal disorders (91.2%), immune stimulants to enhance defenses and cold prevention (87.1%), and omega-3 PUFAs to improve symptoms of attention-deficit hyperactivity disorder (ADHD) (84.8%) and concentration (80.1%). Confidence and previous experience with the product (51.6%), composition and indications of the product (43.1%), and tolerability (39.9%) were main factors involved in decision-making. Children treated with omega-3 supplements were significantly older (mean age 7.6 (3.0) years) than those treated with synbiotics (3.9 (3.9) years) or immune stimulants (3.4 (2.8) years) (P<0.001). Short duration of treatment (<1 month) was significantly more common in the synbiotics group (90.5%), whereas longer duration of treatment (>3 months) was more frequent in the omega-3 group (79.1%). In the immune stimulants group, 60.4% of patients were treated for a period between 1 and 3 months. Clinical improvement was rated by participants as “a lot” in 39% of cases and as “quite” improvement in 50.6%. The overall level of satisfaction was rated as “very satisfied” by 52.1% of participants and as “quite satisfied” by 40.9%. The results show that the use of dietary supplements to improve different conditions, particularly minor disorders, is a widespread clinical practice among Spanish pediatricians. Administration regimens for the three types of supplements, synbiotics, immune stimulants, and omega-3 PUFAs, were consistent with guideline recommendations.
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Proserpio C, Lavelli V, Laureati M, Pagliarini E. Effect of Pleurotus ostreatus powder addition in vegetable soup on ß-glucan content, sensory perception, and acceptability. Food Sci Nutr 2019; 7:730-737. [PMID: 30847151 PMCID: PMC6392850 DOI: 10.1002/fsn3.917] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 11/05/2018] [Accepted: 11/28/2018] [Indexed: 01/19/2023] Open
Abstract
Pleurotus ostreatus is an edible mushroom with interesting nutritional properties, which is able to grow on agri-food waste and could in turn be used as an ingredient for food fortification. However, new food products have to face with the growing consumer consciousness about what they eat and hedonic responses, which represent a key factor in determining food preference and choices. The aim of this study was to design a vegetable-based product (a pumpkin and carrot soup) added with increasing concentration of P. ostreatus powder rich in β-glucans, which are fibers with demonstrated bioactivity in humans, and to obtain a sensory description of these fortified products to find the desirable and undesirable sensory properties that affect their acceptance. A total of 109 subjects (women N = 52; men N = 57; age = 36.1 ± 14.4 years) evaluated five samples of pumpkin and carrot soup added with increasing concentrations of mushroom powder (0%, 2%, 4%, 6%, and a hidden control at 0%) for liking and sensory properties by means of the check-all-that-apply method. Results showed that creaminess, orange color, mild odor, and taste were positively related to vegetable soups liking, whereas strong taste, dark color, and mushroom odor described the less liked samples. Sample added with 2% of mushroom powder obtained comparable liking scores to the unmodified sample, while liking decreased with increasing concentration of P. ostreatus powder. The present results demonstrated that it is possible to fortify a vegetable soup with P. ostreatus powder developing well-accepted foods by consumers. This product could be used to implement an everyday dietary intervention of β-glucans over a long-term period.
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Affiliation(s)
- Cristina Proserpio
- Department of Food, Environmental and Nutritional Sciences (DeFENS)University of MilanMilanItaly
| | - Vera Lavelli
- Department of Food, Environmental and Nutritional Sciences (DeFENS)University of MilanMilanItaly
| | - Monica Laureati
- Department of Food, Environmental and Nutritional Sciences (DeFENS)University of MilanMilanItaly
| | - Ella Pagliarini
- Department of Food, Environmental and Nutritional Sciences (DeFENS)University of MilanMilanItaly
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Zou Y, Zhang M, Qu J, Zhang J. iTRAQ-Based Quantitative Proteomic Analysis Reveals Proteomic Changes in Mycelium of Pleurotus ostreatus in Response to Heat Stress and Subsequent Recovery. Front Microbiol 2018; 9:2368. [PMID: 30356767 PMCID: PMC6189471 DOI: 10.3389/fmicb.2018.02368] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 09/14/2018] [Indexed: 12/30/2022] Open
Abstract
High temperature is a key limiting factor for mycelium growth and development in Pleurotus ostreatus. Thermotolerance includes the direct response to heat stress and the ability to recover from heat stress. To better understand the mechanism of thermotolerance in P. ostreatus, we used morphological and physiological analysis combined with an iTRAQ-based proteomics analysis of P. ostreatus subjected to 40°C for 48 h followed by recovery at 25°C for 3 days. High temperature increased the concentrations of thiobarbituric acid reactive substances (TBARS) indicating that the mycelium of P. ostreatus were damaged by heat stress. However, these physiological changes rapidly returned to control levels during the subsequent recovery phase from heat stress. In comparison to unstressed controls, a total of 204 proteins were changed during heat stress and/or the recovery phase. Wherein, there were 47 proteins that responded to both stress and recovery conditions, whereas 84 and 73 proteins were responsive to only heat stress or recovery conditions, respectively. Furthermore, quantitative real-time PCR (qRT-PCR) confirmed differential expression of nine candidate genes revealed that some of the proteins, such as a mitogen-activated protein kinase (MAPK), phenylalanine ammonia-lyase (PAL), and heat shock protein (HSP), were also regulated by heat stress at the level of transcription. These differentially expressed proteins (DEPs) in mycelium of P. ostreatus under heat stress were from 13 biological processes. Moreover, protein-protein interaction analysis revealed that proteins involved in carbohydrate and energy metabolism, signal transduction, and proteins metabolism could be assigned to three heat stress response networks. On the basis of these findings, we proposed that effective regulatory protein expression related to MAPK-pathway, antioxidant enzymes, HSPs, and other stress response proteins, and glycolysis play important roles in enhancing P. ostreatus adaptation to and recovery from heat stress. Of note, this study provides useful information for understanding the thermotolerance mechanism for basidiomycetes.
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Affiliation(s)
- Yajie Zou
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Meijing Zhang
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jibin Qu
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jinxia Zhang
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
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Khan AA, Gani A, Khanday FA, Masoodi F. Biological and pharmaceutical activities of mushroom β-glucan discussed as a potential functional food ingredient. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.bcdf.2017.12.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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