101
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Yun B, Maburutse BE, Kang M, Park MR, Park DJ, Kim Y, Oh S. Short communication: Dietary bovine milk-derived exosomes improve bone health in an osteoporosis-induced mouse model. J Dairy Sci 2020; 103:7752-7760. [PMID: 32622594 DOI: 10.3168/jds.2019-17501] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 04/14/2020] [Indexed: 12/13/2022]
Abstract
Osteoporosis is a systemic skeletal disease characterized by low bone mass and micro-architectural deterioration of bone tissue, with a consequent increase in bone fragility and fracture susceptibility. In an aged society with increased life expectancy, the incidence rate of osteoporosis is also rapidly increasing. Inadequate nutrition may negatively influence bone metabolism. Recently, many studies have investigated the functionality of milk-derived exosomes, which play important roles in cell-to-cell communication. However, there are few reports of how milk-derived exosomes influence osteoblast proliferation and differentiation. Here, we determined whether bovine colostrum-derived exosomes promote anti-osteoporosis in vitro and in vivo. Tartrate-resistant acid phosphatase-stained cells were significantly inhibited in Raw264.7 cells treated with exosomes, indicating reduced osteoclast differentiation. We induced osteoporosis in mice using glucocorticoid pellets after orally administering exosomes for 2 mo. Interestingly, the bone mineral density of exosome-fed mouse groups was significantly improved compared with the glucocorticoid-induced osteoporosis group without exosome treatment. In addition, Lactobacillus were decreased in the gut microbiota community of osteoporosis-induced mice, but the gut microbiota community composition was effectively restored by exosome intake. Taken together, we propose that exosomes isolated from bovine colostrum could be a potential candidate for osteoporosis prevention, bone remodeling improvement, and inhibition of bone resorption. To our knowledge, this is the first time that a protective effect of milk exosomes against osteoporosis has been demonstrated in vivo. Our results strongly suggest that bovine colostrum exosomes might be used as a prophylaxis to prevent the onset of osteoporosis. Indeed, our results offer promising alternative strategies in the nutritional management of age-related bone complications.
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Affiliation(s)
- B Yun
- Department of Animal Science and Institute of Milk Genomics, Chonbuk National University, Jeonju 54896, Korea
| | - B E Maburutse
- Department of Animal Sciences and Health, Marondera University of Agricultural Sciences and Health, PO Box 35, Marondera, Zimbabwe
| | - M Kang
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea
| | - M R Park
- Department of Pharmacology and System Physiology, University of Cincinnati, OH 45267
| | - D J Park
- Korea Food Research Institute, Jeollabuk-do 55365, Korea
| | - Y Kim
- Department of Agricultural Biotechnology and Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea.
| | - S Oh
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea.
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102
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Lactobacillus plantarum GKM3 and Lactobacillus paracasei GKS6 Supplementation Ameliorates Bone Loss in Ovariectomized Mice by Promoting Osteoblast Differentiation and Inhibiting Osteoclast Formation. Nutrients 2020; 12:nu12071914. [PMID: 32605314 PMCID: PMC7401263 DOI: 10.3390/nu12071914] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/23/2020] [Accepted: 06/26/2020] [Indexed: 12/30/2022] Open
Abstract
Osteoporosis, an imbalance in the bone-forming process mediated by osteoblasts and the bone-resorbing function mediated by osteoclasts, is a bone degenerative disease prevalent among the aged population. Due to deleterious side effects of currently available medications, probiotics as a potential treatment of osteoporosis is an appealing approach. Hence, this study aims to evaluate the beneficial effects of two novel Lactobacilli strain probiotics on bone health in ovariectomized (OVX) induced osteoporotic mice model and its underlying mechanisms. Forty-five 9-week-old Institute of Cancer Research (ICR) mice underwent either a sham-operation (n = 9) or OVX (n = 36). Four days after the operation, OVX mice were further divided into four groups and received either saline alone, Lactobacillus plantarum GKM3, Lactobacillus paracasei GKS6 or alendronate per day for 28 days. After sacrifice by decapitation, right distal femur diaphysis was imaged via micro-computed tomography (MCT) and parameters including bone volume/tissue volume ratio (BV/TV), trabecular thickness (Tb.Th), trabecular number (Tb.N), trabecular separation (Tb.Sp), and bone mineral density (BMD) were measured. Moreover, GKM3 and GKS6 on RANKL-induced osteoclast formation and osteoblast differentiation using in vitro cultures were also investigated. The results showed that both probiotics strains inhibited osteoporosis in the OVX mice model, with L. paracasei GKS6 outperforming L. plantarum GKM3. Besides this, both GKS6 and GKM3 promoted osteoblast differentiation and inhibited RANKL-induced osteoclast differentiation via the Bone Morphogenetic Proteins (BMP) and RANKL pathways, respectively. These findings suggested that both strains of Lactobacilli may be pursued as potential candidates for the treatment and management of osteoporosis, particularly in postmenopausal osteoporosis.
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103
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Szajnar K, Znamirowska A, Kuźniar P. Sensory and textural properties of fermented milk with viability of Lactobacillus rhamnosus and Bifidobacterium animalis ssp. lactis Bb-12 and increased calcium concentration. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2020. [DOI: 10.1080/10942912.2020.1748050] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Katarzyna Szajnar
- Department of Dairy Technology, University of Rzeszow, Rzeszow, Poland
| | - Agata Znamirowska
- Department of Dairy Technology, University of Rzeszow, Rzeszow, Poland
| | - Piotr Kuźniar
- Department of Food and Agriculture Production Engineering, University of Rzeszow, Rzeszow, Poland
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104
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Roberts JL, Drissi H. Advances and Promises of Nutritional Influences on Natural Bone Repair. J Orthop Res 2020; 38:695-707. [PMID: 31729041 DOI: 10.1002/jor.24527] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 11/12/2019] [Indexed: 02/04/2023]
Abstract
Impaired fracture healing continues to be a significant public health issue. This is more frequently observed in aging populations and patients with co-morbidities that can directly influence bone repair. Tremendous progress has been made in the development of biologics to enhance and accelerate the healing process; however, side-effects persist that can cause significant discomfort and tissue damage. This has been the impetus for the development of safe and natural strategies to hasten natural bone healing. Of the many possible approaches, nutrition represents a safe, affordable, and non-invasive strategy to positively influence each phase of fracture repair. However, our understanding of how healing can be hindered by malnutrition or enhanced with nutritional supplementation has lagged behind the advancements in both surgical management and the knowledge of molecular and cellular drivers of skeletal fracture repair. This review serves to bridge this knowledge gap as well as define the importance of nutrition during fracture healing. The extant literature clearly indicates that pre-existing nutritional deficiencies should be corrected, and nutritional status should be carefully monitored to prevent the development of malnutrition for the best possible healing outcome. It remains unclear, however, whether the provision of nutrients beyond sufficiency has any benefit on fracture repair and patient outcomes. The combined body of pre-clinical studies using a variety of animal models suggests a promising role of nutrition as an adjuvant therapy to facilitate fracture repair, but extensive research is needed, specifically at the clinical level, to clarify the utility of nutritional interventions in orthopedics. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 38:695-707, 2020.
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Affiliation(s)
- Joseph L Roberts
- Department of Orthopaedics, School of Medicine, Emory University, Atlanta, Georgia.,Nutrition and Health Sciences Program, Emory University, Atlanta, Georgia
| | - Hicham Drissi
- Department of Orthopaedics, School of Medicine, Emory University, Atlanta, Georgia.,Nutrition and Health Sciences Program, Emory University, Atlanta, Georgia
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105
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Schepper JD, Collins F, Rios-Arce ND, Kang HJ, Schaefer L, Gardinier JD, Raghuvanshi R, Quinn RA, Britton R, Parameswaran N, McCabe LR. Involvement of the Gut Microbiota and Barrier Function in Glucocorticoid-Induced Osteoporosis. J Bone Miner Res 2020; 35:801-820. [PMID: 31886921 DOI: 10.1002/jbmr.3947] [Citation(s) in RCA: 133] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 12/05/2019] [Accepted: 12/14/2019] [Indexed: 12/14/2022]
Abstract
Glucocorticoids (GCs) are potent immune-modulating drugs with significant side effects, including glucocorticoid-induced osteoporosis (GIO). GCs directly induce osteoblast and osteocyte apoptosis but also alter intestinal microbiota composition. Although the gut microbiota is known to contribute to the regulation of bone density, its role in GIO has never been examined. To test this, male C57/Bl6J mice were treated for 8 weeks with GC (prednisolone, GC-Tx) in the presence or absence of broad-spectrum antibiotic treatment (ABX) to deplete the microbiota. Long-term ABX prevented GC-Tx-induced trabecular bone loss, showing the requirement of gut microbiota for GIO. Treatment of GC-Tx mice with a probiotic (Lactobacillus reuteri [LR]) prevented trabecular bone loss. Microbiota analyses indicated that GC-Tx changed the abundance of Verrucomicobiales and Bacteriodales phyla and random forest analyses indicated significant differences in abundance of Porphyromonadaceae and Clostridiales operational taxonomic units (OTUs) between groups. Furthermore, transplantation of GC-Tx mouse fecal material into recipient naïve, untreated WT mice caused bone loss, supporting a functional role for microbiota in GIO. We also report that GC caused intestinal barrier breaks, as evidenced by increased serum endotoxin level (2.4-fold), that were prevented by LR and ABX treatments. Enhancement of barrier function with a mucus supplement prevented both GC-Tx-induced barrier leakage and trabecular GIO. In bone, treatment with ABX, LR or a mucus supplement reduced GC-Tx-induced osteoblast and osteocyte apoptosis. GC-Tx suppression of Wnt10b in bone was restored by the LR and high-molecular-weight polymer (MDY) treatments as well as microbiota depletion. Finally, we identified that bone-specific Wnt10b overexpression prevented GIO. Taken together, our data highlight the previously unappreciated involvement of the gut microbiota and intestinal barrier function in trabecular GIO pathogenesis (including Wnt10b suppression and osteoblast and osteocyte apoptosis) and identify the gut as a novel therapeutic target for preventing GIO. © 2019 American Society for Bone and Mineral Research.
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Affiliation(s)
| | - Fraser Collins
- Department of Physiology, Michigan State University, East Lansing, MI, USA
| | - Naiomy Deliz Rios-Arce
- Department of Physiology, Michigan State University, East Lansing, MI, USA.,Comparative Medicine and Integrative Biology Program, Michigan State University, East Lansing, MI, USA
| | - Ho Jun Kang
- Department of Physiology, Michigan State University, East Lansing, MI, USA
| | - Laura Schaefer
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, USA
| | | | - Ruma Raghuvanshi
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, USA
| | - Robert A Quinn
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, USA
| | - Robert Britton
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, USA
| | | | - Laura R McCabe
- Department of Physiology, Michigan State University, East Lansing, MI, USA
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106
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Aurora R. Confounding factors in the effect of gut microbiota on bone density. Rheumatology (Oxford) 2020; 58:2089-2090. [PMID: 31504958 DOI: 10.1093/rheumatology/kez347] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 07/12/2019] [Accepted: 07/15/2019] [Indexed: 12/24/2022] Open
Affiliation(s)
- Rajeev Aurora
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St Louis, MO, USA
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107
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Lee CS, Lee SH, Kim SH. Bone‐protective effects of
Lactobacillus plantarum
B719‐fermented milk product. INT J DAIRY TECHNOL 2020. [DOI: 10.1111/1471-0307.12701] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Chul Sang Lee
- College of Life Sciences and Biotechnology Korea University Seoul 02841 Korea
- Institute of Animal Molecular Biotechnology Korea University Seoul 02841 Korea
| | - Sun Ho Lee
- College of Life Sciences and Biotechnology Korea University Seoul 02841 Korea
| | - Sae Hun Kim
- College of Life Sciences and Biotechnology Korea University Seoul 02841 Korea
- Institute of Animal Molecular Biotechnology Korea University Seoul 02841 Korea
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108
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Amin N, Boccardi V, Taghizadeh M, Jafarnejad S. Probiotics and bone disorders: the role of RANKL/RANK/OPG pathway. Aging Clin Exp Res 2020; 32:363-371. [PMID: 31119697 DOI: 10.1007/s40520-019-01223-5] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 05/10/2019] [Indexed: 12/20/2022]
Abstract
The skeleton is the framework and in charge of body configuration preservation. As a living tissue, bones are constantly being formed and absorbed. Osteoblasts and osteoclasts are the main bone cells and balance between their activities indicates bone health. Several mechanisms influence the bone turnover and RANKL/RANK/OPG pathway is one of them. This system, whose components are part of the tumor necrosis factor (TNF) superfamily, exists in many organs and could play a role in bone modeling and remodeling. RANKL/RANK pathway controls osteoclasts activity and formation. In addition, they are identified as key factors on bone turnover in different pathological situations. At the same time, OPG (RANKL's decoy receptor) plays role as a bone-protective factor by binding to RANKL and prevention of extra resorption. The lack of balance between RANKL and OPG could result in excessive bone resorption. Probiotics, the beneficial microorganisms for human health, entail bones in their advantages. Recent studies suggest that probiotics could reduce inflammatory factors (for example TNF-α and IL-1β) and increase bone OPG expression. In addition, probiotics have shown to maintain bones in various ways. Although current evidence is not enough for definitive approval of probiotics' efficacy on RANKL/RANK/OPG, its positive responses from conducted studies are significant. Understanding of the probiotics' effects on RANKL/RANK/OPG pathway will help focus future studies, and assist in developing efficient treatment strategies.
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Affiliation(s)
- Negin Amin
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Islamic Republic of Iran
| | - Virginia Boccardi
- Section of Gerontology and Geriatrics, Department of Medicine, Santa Maria della Misericordia Hospital, University of Perugia, Perugia, Italy
| | - Mohsen Taghizadeh
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Islamic Republic of Iran
| | - Sadegh Jafarnejad
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Islamic Republic of Iran.
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109
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Jurczak P, Witkowska J, Rodziewicz-Motowidło S, Lach S. Proteins, peptides and peptidomimetics as active agents in implant surface functionalization. Adv Colloid Interface Sci 2020; 276:102083. [PMID: 31887572 DOI: 10.1016/j.cis.2019.102083] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 12/09/2019] [Accepted: 12/09/2019] [Indexed: 12/14/2022]
Abstract
The recent impact of implants on improving the human life quality has been enormous. During the past two decades we witnessed major advancements in both material and structural development of implants. They were driven mainly by the increasing patients' demand and the need to address the major issues that come along with the initially underestimated complexity of the bone-implant interface. While both, the materials and design of implants reached a certain, balanced state, recent years brought a shift in focus towards the bone-implant interface as the weakest link in the increasing implant long-term usability. As a result, several approaches were developed. They aimed at influencing and enhancing the implant osseointegration and its proper behavior when under load and stress. With this review, we would like to discuss the recent advancements in the field of implant surface modifications, emphasizing the importance of chemical methods, focusing on proteins, peptides and peptidomimetics as promising agents for titanium surface coatings.
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110
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LeBegue CE, Love BL, Wyatt MD. Microbes as Drugs: The Potential of Pharmabiotics. Pharmacotherapy 2020; 40:102-106. [PMID: 31863487 DOI: 10.1002/phar.2357] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Chloé E LeBegue
- Department of Clinical Pharmacy and Outcomes Sciences, College of Pharmacy, University of South Carolina, Columbia, South Carolina.,Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, Columbia, South Carolina
| | - Bryan L Love
- Department of Clinical Pharmacy and Outcomes Sciences, College of Pharmacy, University of South Carolina, Columbia, South Carolina
| | - Michael D Wyatt
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, Columbia, South Carolina
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111
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Liu Y, Zhao Y, Yang Y, Wang Z. Effects of Probiotics, Prebiotics, and Synbiotics on Calcium Homeostasis and Bone Health With Aging: A Systematic Review. Worldviews Evid Based Nurs 2019; 16:478-484. [PMID: 31638313 DOI: 10.1111/wvn.12405] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/28/2019] [Accepted: 05/20/2019] [Indexed: 01/03/2023]
Abstract
BACKGROUND Calcium homeostasis and bone health are an increasing concern for middle-aged and older adults. Many studies have explored the positive effects of probiotics, prebiotics, or synbiotics on serum calcium and bone mineral density (BMD) or other parameters related to bone health. However, the participants, the species, doses and duration of interventions, outcomes, and measurements varied among these studies. AIMS To systematically evaluate the effect of probiotics, prebiotics, or synbiotics on maintaining calcium homeostasis and improving bone health in middle-aged and older adults. METHODS We identified studies in Cochrane Library, Embase, PubMed, Web of Science, CINAHL, China National Knowledge Infrastructure, and Wanfang and articles in English and Chinese published from inception up to January 10, 2019. Randomized controlled trials (RCTs) involving probiotics, prebiotics, or synbiotics for middle-aged or older adults were employed for meta-analysis by using RevMan 5.3, and heterogeneity and risk of bias assessment were performed. RESULTS A total of eight studies, involving 564 participants, were included. Probiotics, prebiotics, or synbiotics supplementation was able to significantly elevate serum calcium levels (0.52 mg/dl, 95% CI [0.38, 0.66]), heterogeneity: p = .13, I2 = 44%), while the results of meta-analysis failed to support the effects of this supplementation on the parameters related to bone health in middle-aged and older adults, including BMD, parathyroid hormone, osteocalcin, and alkaline phosphatase. LINKING EVIDENCE TO ACTION Probiotics, prebiotics, or synbiotics supplementation exerts a facilitating influence on the level of serum calcium, while the present study has not yet supported the beneficial effects of such interventions on bone health. Therefore, further studies with high-quality RCTs are required to determine the effects of probiotics, prebiotics, or synbiotics supplementation on middle-aged and older adults.
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Affiliation(s)
- Yang Liu
- Department of Basic Nursing, Daqing Campus, Harbin Medical University, Daqing, China
| | - Yajie Zhao
- School of Nursing, Peking University, Beijing, China.,Peking University Health Science Centre for Evidence-Based Nursing: A Joanna Briggs Institute Centre of Excellence, Beijing, China
| | - Yajun Yang
- Department of Pharmacology, Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang, China
| | - Zhiwen Wang
- School of Nursing, Peking University, Beijing, China.,Peking University Health Science Centre for Evidence-Based Nursing: A Joanna Briggs Institute Centre of Excellence, Beijing, China
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112
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Zhang C, Xue S, Wang Y, Yu D, Hua L, Guo C, Wang D, Lei M. Oral administration of Lactobacillus casei Shirota improves recovery of hand functions after distal radius fracture among elder patients: a placebo-controlled, double-blind, and randomized trial. J Orthop Surg Res 2019; 14:257. [PMID: 31412879 PMCID: PMC6694534 DOI: 10.1186/s13018-019-1310-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 08/07/2019] [Indexed: 01/03/2023] Open
Abstract
Background To evaluate the effect of oral Lactobacillus casei Shirota (LcS) administration on recovery of hand functions in senior patients diagnosed with an acute distal radius fracture. Methods This clinical trial is double-blind and placebo-controlled, in which 293 senior patients with distal radius fracture were initially enrolled. After exclusion, 264 eligible patients were randomly assigned to receive oral placebo or LcS daily for a period of 3 months after the fracture. Treatment outcomes were Michigan Hand Questionnaire (MHQ) score, radial deviation and inclination, and ulnar deviation and variance, all of which were monitored and measured every month. Results Throughout the length of this study, MHQ score, radial deviation and inclination, and ulnar deviation and variance of patients on oral LcS displayed a significantly faster improvement in comparison to those receiving placebo, over the 3-month intervention period. Conclusion Oral administration of LcS dramatically accelerated hand function recovery in senior patients with distal radius fracture.
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Affiliation(s)
- Chunhua Zhang
- Department of Emergency Medicine, the Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China
| | - Sujuan Xue
- Department of Nutrition and Diet, the Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China
| | - Yong Wang
- Department of Orthopedics, the Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China
| | - Dan Yu
- Department of Nutrition and Diet, the Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China
| | - Limei Hua
- Department of Nutrition, Bethune International Heping Hospital, No. 398 Zhong Shan West Road, Shijiazhuang, 050082, Hebei, China
| | - Chunhua Guo
- Department of Oral and Maxillofacial Surgery, the Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China
| | - Dawei Wang
- Department of Oral and Maxillofacial Surgery, the Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China
| | - Min Lei
- Department of Nutrition and Diet, the Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China.
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113
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Wu W, Wang T, Sun B, Liu D, Lin Z, Miao Y, Wang C, Geng X, Li B. Xian-Ling-Gu-Bao induced inflammatory stress rat liver injury: Inflammatory and oxidative stress playing important roles. JOURNAL OF ETHNOPHARMACOLOGY 2019; 239:111910. [PMID: 31026554 DOI: 10.1016/j.jep.2019.111910] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Revised: 03/31/2019] [Accepted: 04/23/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Xian-Ling-Gu-Bao (XLGB) Fufang is an herbal formula that has been used in clinical settings to treat osteoporosis, osteoarthritis, aseptic bone necrosis, and climacteric syndrome. Despite its uses, XLGB treatment has been linked to potential liver injury. To date, there is a lack of clear demonstration of such toxicity in animal models. AIM OF THE STUDY As animal models fail to reproduce the XLGB hepatotoxicity reported in humans, because human hepatocytes are clearly more sensitive to XLGB, this study was designed to investigate a more reliable animal model of such toxicity. MATERIALS AND METHODS We randomized rats into five groups, as follows: CON (control), XLGB, lipopolysaccharide (LPS), L-XLGB/LPS (XLGB, 0.125 g/kg; LPS, 0.1 mg/kg), and XLGB/LPS (XLGB, 1.25 g/kg; LPS, 0.1 mg/kg). These groups were treated with 0.5% sodium carboxymethyl cellulose (CMC-Na), XLGB suspension, normal saline, or LPS. The first administration of XLGB [0.125 g/kg or 1.25 g/kg, by mouth (PO)] or its solvent (0.5% CMC-Na) was delivered, and then food was removed. Twelve hours after the first administration of XLGB, rats received LPS [0.1 mg/kg, intravenously (IV)] or saline control. After 30 min, a second administration of XLGB (0.125 g/kg or 1.25 g/kg, PO) or solvent was administered. The rats were anesthetized at 12 h or 24 h following the second administration of XLGB. Liver function was evaluated by measuring liver weight, liver microscopy, serum biochemistry and plasma microRNA-122 (miR-122). The plasma levels of 27 cytokines were measured to evaluate inflammation. Moreover, the expression of cytochrome P450 2E1 (CYP2E1), nicotinic adenine dinucleotide phosphate (NADPH) oxidase and inducible nitric oxide synthase (iNOS) at protein levels were observed; immunofluorescence and immunohistochemistry were used to confirmed the hepatotoxicity of XLGB. RESULTS Hepatotoxicity in male rats with moderate inflammation induced by XLGB was indicated by liver histopathology, serum biochemical analysis, serum miR-122 levels, and immunofluorescent assessments. We observed significant increases in liver weight and liver indexes in male rats with moderate inflammation in response to XLGB. Histopathological assessment further showed that extensive hepatocellular necrosis and inflammatory infiltration were evident in rats co-treated with XLGB/LPS. The levels of serum transaminases [alanine aminotransferase (ALT), aspartate aminotransferase (AST), gamma-glutamyl transferase (GGT)], total bilirubin (TBIL) and triglyceride (TG), which are markers of liver function, were also significantly increased by XLGB/LPS treatment. Similarly, miR-122 was significantly elevated in XLGB/LPS treated rats relative to other groups. An immunofluorescent assessment showed extensive apoptosis in hepatocytes from these co-treated rats. What is more, XLGB can dose-dependently induce liver injury in male rats with moderate inflammation. Hepatic CYP2E1, neutrophil chemotactic factor (NCF-1), iNOS, and NOX-2 (an NADPH oxidase subunit) levels were increased in response to XLGB treatment, and staining for DMPO nitrone adducts further showed elevated oxidative stress level in XLGB/LPS-treated rats relative to the other experimental groups. CONCLUSION LPS and XLGB co-treatment in rats led to marked hepatotoxicity. This toxicity was associated with disrupted lipid metabolism, extensive liver necrosis and inflammatory infiltration, apoptosis, and expression of oxidative stress-related proteins. These results demonstrate a valuable model for the study of iDILI in the context of XLGB treatment, and further provide insights into the potential mechanisms by which XLGB may induce hepatotoxicity in humans.
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Affiliation(s)
- Wenxiao Wu
- Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, China; National Center for Safety Evaluation of Drugs, National Institute for Food and Drug Control, Key Laboratory of Beijing for Nonclinical Safety Evaluation of Drugs, A8 Hongda Middle Street, Beijing Economic-Technological Development Area, Beijing, 100176, China
| | - Ting Wang
- National Center for Safety Evaluation of Drugs, National Institute for Food and Drug Control, Key Laboratory of Beijing for Nonclinical Safety Evaluation of Drugs, A8 Hongda Middle Street, Beijing Economic-Technological Development Area, Beijing, 100176, China
| | - Bo Sun
- Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, China; National Center for Safety Evaluation of Drugs, National Institute for Food and Drug Control, Key Laboratory of Beijing for Nonclinical Safety Evaluation of Drugs, A8 Hongda Middle Street, Beijing Economic-Technological Development Area, Beijing, 100176, China
| | - Dong Liu
- National Center for Safety Evaluation of Drugs, National Institute for Food and Drug Control, Key Laboratory of Beijing for Nonclinical Safety Evaluation of Drugs, A8 Hongda Middle Street, Beijing Economic-Technological Development Area, Beijing, 100176, China
| | - Zhi Lin
- National Center for Safety Evaluation of Drugs, National Institute for Food and Drug Control, Key Laboratory of Beijing for Nonclinical Safety Evaluation of Drugs, A8 Hongda Middle Street, Beijing Economic-Technological Development Area, Beijing, 100176, China
| | - Yufa Miao
- National Center for Safety Evaluation of Drugs, National Institute for Food and Drug Control, Key Laboratory of Beijing for Nonclinical Safety Evaluation of Drugs, A8 Hongda Middle Street, Beijing Economic-Technological Development Area, Beijing, 100176, China
| | - Chao Wang
- National Center for Safety Evaluation of Drugs, National Institute for Food and Drug Control, Key Laboratory of Beijing for Nonclinical Safety Evaluation of Drugs, A8 Hongda Middle Street, Beijing Economic-Technological Development Area, Beijing, 100176, China
| | - Xingchao Geng
- National Center for Safety Evaluation of Drugs, National Institute for Food and Drug Control, Key Laboratory of Beijing for Nonclinical Safety Evaluation of Drugs, A8 Hongda Middle Street, Beijing Economic-Technological Development Area, Beijing, 100176, China.
| | - Bo Li
- Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, China; National Institute for Food and Drug Control, 31 Hua Tuo Road, Daxing District, Beijing, 102629, China.
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114
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Collins FL, Stone MD, Turton J, McCabe LR, Wang ECY, Williams AS. Oestrogen-deficiency induces bone loss by modulating CD14 + monocyte and CD4 + T cell DR3 expression and serum TL1A levels. BMC Musculoskelet Disord 2019; 20:326. [PMID: 31299941 PMCID: PMC6626337 DOI: 10.1186/s12891-019-2704-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 07/03/2019] [Indexed: 12/13/2022] Open
Abstract
Background Oestrogen-deficiency induced by menopause is associated with reduced bone density and primary osteoporosis, resulting in an increased risk of fracture. While the exact etiology of menopause-induced primary osteoporotic bone loss is not fully known, members of the tumour necrosis factor super family (TNFSF) are known to play a role. Recent studies have revealed that the TNFSF members death receptor 3 (DR3) and one of its ligands, TNF-like protein 1A (TL1A) have a key role in secondary osteoporosis; enhancing CD14+ peripheral blood mononuclear cell (PBMC) osteoclast formation and bone resorption. Whether DR3 and TL1A contribute towards bone loss in menopause-induced primary osteoporosis however, remains unknown. Methods To investigate this we performed flow cytometry analysis of DR3 expression on CD14+ PBMCs isolated from pre- and early post-menopausal females and late post-menopausal osteoporotic patients. Serum levels of TL1A, CCL3 and total MMP-9 were measured by ELISA. In vitro osteoclast differentiation assays were performed to determine CD14+ monocyte osteoclastogenic potential. In addition, splenic CD4+ T cell DR3 expression was investigated 1 week and 8 weeks post-surgery, using the murine ovariectomy model. Results In contrast to pre-menopausal females, CD14+ monocytes isolated from post-menopausal females were unable to induce DR3 expression. Serum TL1A levels were decreased approx. 2-fold in early post-menopausal females compared to pre-menopausal controls and post-menopausal osteoporotic females; no difference was observed between pre-menopausal and late post-menopausal osteoporotic females. Analysis of in vitro CD14+ monocyte osteoclastogenic potential revealed no significant difference between the post-menopausal and post-menopausal osteoporotic cohorts. Interestingly, in the murine ovariectomy model splenic CD4+ T cell DR3 expression was significantly increased at 1 week but not 8 weeks post-surgery when compared to the sham control. Conclusion Our results reveals for the first time that loss of oestrogen has a significant effect on DR3; decreasing expression on CD14+ monocytes and increasing expression on CD4+ T cells. These data suggest that while oestrogen-deficiency induced changes in DR3 expression do not affect late post-menopausal bone loss they could potentially have an indirect role in early menopausal bone loss through the modulation of T cell activity.
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Affiliation(s)
- Fraser L Collins
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK. .,Department of Physiology, Michigan State University, East Lansing, MI, USA.
| | - Michael D Stone
- University Hospital Llandough, Cardiff & Vale University Health Board, Cardiff, UK
| | - Jane Turton
- University Hospital Llandough, Cardiff & Vale University Health Board, Cardiff, UK
| | - Laura R McCabe
- Department of Physiology, Michigan State University, East Lansing, MI, USA
| | - Eddie C Y Wang
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK
| | - Anwen S Williams
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK
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115
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Probiotics in Extraintestinal Diseases: Current Trends and New Directions. Nutrients 2019; 11:nu11040788. [PMID: 30959761 PMCID: PMC6521300 DOI: 10.3390/nu11040788] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 03/26/2019] [Accepted: 04/02/2019] [Indexed: 12/25/2022] Open
Abstract
Probiotics are defined as live microorganisms that when administered in adequate amounts confer a health benefit to the host. Their positive supplementation outcomes on several gastrointestinal disorders are well defined. Nevertheless, their actions are not limited to the gut, but may also impart their beneficial effects at distant sites and organs. In this regard, in this review article we: (i) comprehensively describe the main mechanisms of action of probiotics at distant sites, including bones, skin, and brain; (ii) critically present their therapeutic potential against bone, skin, and neuronal diseases (e.g., osteoporosis, non-healing wounds and autoimmune skin illnesses, mood, behavior, memory, and cognitive impairments); (iii) address the current gaps in the preclinical and clinical research; and (iv) indicate new research directions and suggest future investigations.
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116
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Yatsonsky II D, Pan K, Shendge VB, Liu J, Ebraheim NA. Linkage of microbiota and osteoporosis: A mini literature review. World J Orthop 2019; 10:123-127. [PMID: 30918795 PMCID: PMC6428997 DOI: 10.5312/wjo.v10.i3.123] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/06/2019] [Accepted: 01/28/2019] [Indexed: 02/06/2023] Open
Abstract
The gut microbiota (GM) has become a recent topic of interest in the role of many disease states. Assessing patients with osteoporosis (OP), there is a strong correlation between gut microbe dysregulation and decreased bone density. Gut dysbiosis may lead to inflammation, dysregulation of nutrient and calcium transport across the intestine into circulation and systemic inflammation. Investigation of microbial profile relative to normal gut microbiomes, assessment of inflammatory markers such as interleukin-1 (IL-1), IL-6, and tumor necrosis factor-alpha. Therapies to normalize GM in patients with OP or prevent occurrence of OP to be investigated include: High fiber prebiotic diets to promote growth of normal gut bacteria and short chain fatty acid production, Probiotics to encourage growth of normal gut microbes, and antibiotic treatment followed by fecal matter transplant.
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Affiliation(s)
- David Yatsonsky II
- Department of Orthopedic Surgery, University of Toledo Medical Center, Toledo, OH 43614, United States
| | - Karen Pan
- Department of Orthopedic Surgery, University of Toledo Medical Center, Toledo, OH 43614, United States
| | - Vithal B Shendge
- Department of Orthopedic Surgery, University of Toledo Medical Center, Toledo, OH 43614, United States
| | - Jiayong Liu
- Department of Orthopedic Surgery, University of Toledo Medical Center, Toledo, OH 43614, United States
| | - Nabil A Ebraheim
- Department of Orthopedic Surgery, University of Toledo Medical Center, Toledo, OH 43614, United States
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117
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Zhao X, Ai J, Mao H, Gao X. Effects of Eclipta prostrata on gut microbiota of SAMP6 mice with osteoporosis. J Med Microbiol 2019; 68:402-416. [DOI: 10.1099/jmm.0.000936] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Affiliation(s)
- Xin Zhao
- 1 Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Beihua South Road, Jing Hai District, Tianjin 301617, PR China
| | - Juqing Ai
- 1 Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Beihua South Road, Jing Hai District, Tianjin 301617, PR China
| | - Haoping Mao
- 1 Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Beihua South Road, Jing Hai District, Tianjin 301617, PR China
| | - Xiumei Gao
- 1 Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Beihua South Road, Jing Hai District, Tianjin 301617, PR China
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118
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Abboud M, Papandreou D. Gut Microbiome, Probiotics and Bone: An Updated Mini Review. Open Access Maced J Med Sci 2019; 7:478-481. [PMID: 30834022 PMCID: PMC6390135 DOI: 10.3889/oamjms.2019.047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 12/25/2018] [Accepted: 01/12/2019] [Indexed: 01/29/2023] Open
Abstract
The gut microbiome is now considered as a large organ that has a direct effect on gastrointestinal tract, immune and endocrine system. There is no evidence that gut microbiota regulates the immune system and is responsible for bone formation and destruction. Probiotics have been shown through the gastrointestinal tract to have a positive effect on the management of the healthy bone. This article discusses the latest data available from PubMed and Scopus databases regarding gut microbiome, probiotics and bone briefly.
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Affiliation(s)
- Myriam Abboud
- Department of Health, CNHS, Zayed University, Dubai, UAE
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119
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McCabe LR, Irwin R, Tekalur A, Evans C, Schepper JD, Parameswaran N, Ciancio M. Exercise prevents high fat diet-induced bone loss, marrow adiposity and dysbiosis in male mice. Bone 2019; 118:20-31. [PMID: 29604350 PMCID: PMC6163087 DOI: 10.1016/j.bone.2018.03.024] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 03/27/2018] [Accepted: 03/27/2018] [Indexed: 02/07/2023]
Abstract
High fat diets can have detrimental effects on the skeleton as well as cause intestinal dysbiosis. Exercise prevents high fat (HF) diet-induced obesity and also improves bone density and prevents the intestinal dysbiosis that promotes energy storage. Previous studies indicate a link between intestinal microbial balance and bone health. Therefore, we examined whether exercise could prevent HF-induced bone pathology in male mice and determined whether benefits correlate to changes in host intestinal microbiota. Male C57Bl/6 mice were fed either a low fat diet (LF; 10 kcal% fat) or a HF diet (60 kcal% fat) and put under sedentary or voluntary exercise conditions for 14 weeks. Our results indicated that HF diet reduced trabecular bone volume, when corrected for differences in body weight, of both the tibia (40% reduction) and vertebrae (25% reduction) as well and increased marrow adiposity (44% increase). More importantly, these effects were prevented by exercise. Exercise also had a significant effect on several cortical bone parameters and enhanced bone mechanical properties in LF but not HF fed mice. Microbiome analyses indicated that exercise altered the HF induced changes in microbial composition by reducing the Firmicutes/Bacteriodetes ratio. This ratio negatively correlated with bone volume as did levels of Clostridia and Lachnospiraceae. In contrast, the abundance of several Actinobacteria phylum members (i.e., Bifidobacteriaceae) were positively correlated with bone volume. Taken together, exercise can prevent many of the negative effects of a high fat diet on male skeletal health. Exercise induced changes in microbiota composition could represent a novel mechanism that contributes to exercise induced benefits to bone health.
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Affiliation(s)
- Laura R McCabe
- Department of Physiology, Michigan State University, East Lansing, MI, United States; Department of Radiology, Michigan State University, East Lansing, MI, United States; Biomedical Imaging Research Center, Michigan State University, East Lansing, MI, United States.
| | - Regina Irwin
- Department of Physiology, Michigan State University, East Lansing, MI, United States
| | - Arjun Tekalur
- Department of Mechanical Engineering, Michigan State University, East Lansing, MI, United States
| | - Christian Evans
- Physical Therapy Program, Midwestern University, Downers Grove, IL, United States
| | - Jonathan D Schepper
- Department of Physiology, Michigan State University, East Lansing, MI, United States
| | | | - Mae Ciancio
- Biomedical Sciences Program, Midwestern University, Downers Grove, IL, United States.
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120
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Raehtz S, Hargis BM, Kuttappan VA, Pamukcu R, Bielke LR, McCabe LR. High Molecular Weight Polymer Promotes Bone Health and Prevents Bone Loss Under Salmonella Challenge in Broiler Chickens. Front Physiol 2018; 9:384. [PMID: 29706903 PMCID: PMC5908899 DOI: 10.3389/fphys.2018.00384] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 03/28/2018] [Indexed: 12/12/2022] Open
Abstract
As a consequence of rapid growth, broiler chickens are more susceptible to infection as well as bone fractures that result in birds being culled. Intestinal infection/inflammation has been demonstrated to promote bone loss in mice and humans. Given this link, we hypothesize that therapeutics that target the gut can benefit bone health. To test this, we infected broiler chickens (7 days old) with Salmonella and treated the birds with or without MDY, a non-absorbable mucus supplement known to benefit intestinal health, from day 1–21 or from day 14–21. Chicken femoral trabecular and cortical bone parameters were analyzed by microcomputed tomography at 21 days. Birds infected with Salmonella displayed significant trabecular bone loss and bone microarchitecture abnormalities that were specific to the femoral neck region, a common site of fracture in chickens. Histological analyses of the chicken bone indicated an increase in osteoclast surface/bone surface in this area indicating that infection-induced bone resorption likely causes the bone loss. Of great interest, treatment with MDY effectively prevented broiler chicken bone loss and architectural changes when given chronically throughout the experiment or for only a week after infection. The latter suggests that MDY may not only prevent bone loss but reverse bone loss. MDY also increased cortical bone mineral density in Salmonella-treated chickens. Taken together, our studies demonstrate that Salmonella-induced bone loss in broiler chickens is prevented by oral MDY.
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Affiliation(s)
- Sandi Raehtz
- Department of Physiology, Michigan State University, East Lansing, MI, United States
| | - Billy M Hargis
- Department of Poultry Science, University of Arkansas, Fayetteville, AR, United States
| | - Vivek A Kuttappan
- Department of Poultry Science, University of Arkansas, Fayetteville, AR, United States
| | - Rifat Pamukcu
- Midway Pharmaceuticals, Spring House, PA, United States
| | - Lisa R Bielke
- Department of Animal Science, Ohio State University, Columbus, OH, United States
| | - Laura R McCabe
- Department of Physiology, Michigan State University, East Lansing, MI, United States.,Department of Radiology, Michigan State University, East Lansing, MI, United States.,Biomedical Imaging Research Centre, Michigan State University, East Lansing, MI, United States
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121
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Schepper JD, Irwin R, Kang J, Dagenais K, Lemon T, Shinouskis A, Parameswaran N, McCabe LR. Probiotics in Gut-Bone Signaling. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1033:225-247. [PMID: 29101658 PMCID: PMC5762128 DOI: 10.1007/978-3-319-66653-2_11] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The intestinal environment is linked to an array of conditions and diseases, including osteoporosis. Human and animal studies indicate that probiotics can benefit intestinal health and may provide a useful therapeutic to prevent and/or treat bone loss. Probiotics are defined as live microorganisms that when administered in adequate amounts will confer a health benefit on the host. In this review, we will focus on (1) probiotics (definition, history, nomenclature, types), (2) the effects of probiotics on bone health, and (3) mechanisms of probiotic prevention of bone pathologies.
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Affiliation(s)
| | - Regina Irwin
- Department of Physiology, Michigan State University, East Lansing, MI, USA
| | - Jun Kang
- Department of Physiology, Michigan State University, East Lansing, MI, USA
| | - Kevin Dagenais
- Department of Physiology, Michigan State University, East Lansing, MI, USA
| | - Tristan Lemon
- Department of Physiology, Michigan State University, East Lansing, MI, USA
| | - Ally Shinouskis
- Department of Physiology, Michigan State University, East Lansing, MI, USA
| | - Narayanan Parameswaran
- Department of Physiology, Michigan State University, East Lansing, MI, USA.
- Comparative Medicine and Integrative Biology Program, East Lansing, MI, USA.
| | - Laura R McCabe
- Department of Physiology and Department of Radiology, Biomedical Imaging Research Centre, Michigan State University, East Lansing, MI, USA.
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