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Bacillus subtilis-Based Probiotic Improves Skeletal Health and Immunity in Broiler Chickens Exposed to Heat Stress. Animals (Basel) 2021; 11:ani11061494. [PMID: 34064126 PMCID: PMC8224346 DOI: 10.3390/ani11061494] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/06/2021] [Accepted: 05/11/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary High ambient temperature is a major environmental stressor affecting the physiological and behavioral status of animals, increasing stress susceptibility and immunosuppression, and consequently increasing intestinal permeability (leaky gut) and related neuroinflammation. Probiotics, as well as prebiotics and synbiotics, have been used to prevent or decrease stress-associated detrimental effects on physiological and behavioral homeostasis in humans and various animals. The current data indicate that a dietary probiotic supplement, Bacillus subtilis, reduces heat stress-induced abnormal behaviors and negative effects on skeletal health in broilers through a variety of cellular responses, regulating the functioning of the microbiota–gut–brain axis and/or microbiota-modulated immunity during bone remodeling under thermoneutral and heat-stressed conditions. Abstract The elevation of ambient temperature beyond the thermoneutral zone leads to heat stress, which is a growing health and welfare issue for homeothermic animals aiming to maintain relatively constant reproducibility and survivability. Particularly, global warming over the past decades has resulted in more hot days with more intense, frequent, and long-lasting heat waves, resulting in a global surge in animals suffering from heat stress. Heat stress causes pathophysiological changes in animals, increasing stress sensitivity and immunosuppression, consequently leading to increased intestinal permeability (leaky gut) and related neuroinflammation. Probiotics, as well as prebiotics and synbiotics, have been used to prevent or reduce stress-induced negative effects on physiological and behavioral homeostasis in humans and various animals. The current data indicate dietary supplementation with a Bacillus subtilis-based probiotic has similar functions in poultry. This review highlights the recent findings on the effects of the probiotic Bacillus subtilis on skeletal health of broiler chickens exposed to heat stress. It provides insights to aid in the development of practical strategies for improving health and performance in poultry.
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Do patients with gastroesophageal reflux disease exhibit compromised bone quality prior to proton pump inhibitor therapy? Bone Rep 2021; 14:101095. [PMID: 34095362 PMCID: PMC8167151 DOI: 10.1016/j.bonr.2021.101095] [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: 03/30/2021] [Revised: 05/15/2021] [Accepted: 05/18/2021] [Indexed: 11/24/2022] Open
Abstract
Patients with gastroesophageal reflux disease (GERD) are routinely treated with proton pump inhibitors (PPIs), despite many reports of increased fracture risk associated with PPI use. Notably, the skeletal properties in patients with GERD prior to PPI therapy have not been addressed. We hypothesized that PPI-naïve GERD patients have bone impairment, and that short-term treatment with PPI has minimal skeletal effects. To test this, 17 (12 men/5 women) GERD patients age 32–73 years, not previously exposed to PPI, and 17 age- and sex-matched controls were enrolled from September 2010 to December 2012. Bone mineral density (BMD) at lumbar spine, femoral neck, total hip, and trabecular bone score (TBS) at the lumbar spine, a marker of bone microarchitecture, were measured by dual X-ray absorptiometry. Markers of bone turnover and calcium homeostasis, and gastric hormones were analyzed. The same parameters were measured after three months of treatment with the PPI pantoprazole. The GERD patients displayed a significantly lower TBS at baseline than controls (1.31 ± 0.11 vs. 1.43 ± 0.07, p = 0.0006). Total hip and femoral neck BMD were lower in patients compared to controls, however, not significantly (p = 0.09 and 0.12, respectively). CTX was non-significantly higher in GERD patients at baseline (p = 0.11). After three months, changes in BMD, TBS and CTX did not differ between the groups. In conclusion, this is the first report demonstrating compromised bone quality and inferior BMD in PPI-naïve GERD patients. Treatment with pantoprazole did not influence bone parameters, indicating that short-term use with this PPI is safe for the skeleton. Previous studies have reported an increased fracture risk in PPI users. Patients with GERD had compromised bone quality before starting PPI. Three months treatment with pantoprazole did not influence bone parameters.
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Li C, Pi G, Li F. The Role of Intestinal Flora in the Regulation of Bone Homeostasis. Front Cell Infect Microbiol 2021; 11:579323. [PMID: 33777828 PMCID: PMC7994858 DOI: 10.3389/fcimb.2021.579323] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 02/09/2021] [Indexed: 12/16/2022] Open
Abstract
Intestinal flora located within the intestinal tract comprises a large number of cells, which are referred to as the second gene pool of the human body and form a complex symbiotic relationship with the host. The knowledge of the complex interaction between the intestinal flora and various life activities of the host is a novel and rapidly expanding field. Recently, many studies are being conducted on the relationship between the intestinal flora and bone homeostasis and indicate that the intestinal flora can regulate bone homeostasis via the host immune, metabolic, and endocrine systems. What’s more, based on several clinical and preclinical pieces of evidence, changing the composition and function of the host intestinal flora through the application of probiotics, prebiotics, and fecal microbiota transplantation is being considered to be a potential novel target for the regulation of bone homeostasis. Here, we searched relevant literature and reviewed the role of the intestinal flora in the regulation of bone homeostasis and its modulating interventions.
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Affiliation(s)
- Chengxiang Li
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Guofu Pi
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Feng Li
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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4
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Swan AL, Schütt C, Rozman J, del Mar Muñiz Moreno M, Brandmaier S, Simon M, Leuchtenberger S, Griffiths M, Brommage R, Keskivali-Bond P, Grallert H, Werner T, Teperino R, Becker L, Miller G, Moshiri A, Seavitt JR, Cissell DD, Meehan TF, Acar EF, Lelliott CJ, Flenniken AM, Champy MF, Sorg T, Ayadi A, Braun RE, Cater H, Dickinson ME, Flicek P, Gallegos J, Ghirardello EJ, Heaney JD, Jacquot S, Lally C, Logan JG, Teboul L, Mason J, Spielmann N, McKerlie C, Murray SA, Nutter LMJ, Odfalk KF, Parkinson H, Prochazka J, Reynolds CL, Selloum M, Spoutil F, Svenson KL, Vales TS, Wells SE, White JK, Sedlacek R, Wurst W, Lloyd KCK, Croucher PI, Fuchs H, Williams GR, Bassett JHD, Gailus-Durner V, Herault Y, Mallon AM, Brown SDM, Mayer-Kuckuk P, Hrabe de Angelis M. Mouse mutant phenotyping at scale reveals novel genes controlling bone mineral density. PLoS Genet 2020; 16:e1009190. [PMID: 33370286 PMCID: PMC7822523 DOI: 10.1371/journal.pgen.1009190] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 01/22/2021] [Accepted: 10/13/2020] [Indexed: 12/18/2022] Open
Abstract
The genetic landscape of diseases associated with changes in bone mineral density (BMD), such as osteoporosis, is only partially understood. Here, we explored data from 3,823 mutant mouse strains for BMD, a measure that is frequently altered in a range of bone pathologies, including osteoporosis. A total of 200 genes were found to significantly affect BMD. This pool of BMD genes comprised 141 genes with previously unknown functions in bone biology and was complementary to pools derived from recent human studies. Nineteen of the 141 genes also caused skeletal abnormalities. Examination of the BMD genes in osteoclasts and osteoblasts underscored BMD pathways, including vesicle transport, in these cells and together with in silico bone turnover studies resulted in the prioritization of candidate genes for further investigation. Overall, the results add novel pathophysiological and molecular insight into bone health and disease. Patients affected by osteoporosis frequently present with decreased BMD and increased fracture risk. Genes are known to control the onset and progression of bone diseases such as osteoporosis. Therefore, we aimed to identify osteoporosis-related genes using BMD measures obtained from a large pool of mutant mice genetically modified for deletion of individual genes (knockout mice). In a collaborative endeavor involving several research sites world-wide, we generated and phenotyped 3,823 knockout mice and identified 200 genes which regulated BMD. Of the 200 BMD genes, 141 genes were previously not known to affect BMD. The discovery and study of novel BMD genes will help to better understand the causes and therapeutic options for patients with low BMD. In the long run, this will improve the clinical management of osteoporosis.
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Affiliation(s)
- Anna L. Swan
- MRC Harwell Institute, Mammalian Genetics Unit, Harwell Campus, Oxfordshire, United Kingdom
| | - Christine Schütt
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Neuherberg, Germany
| | - Jan Rozman
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- Czech Center for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences,Vestec, Czech Republic
| | | | - Stefan Brandmaier
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- Research Unit of Molecular Epidemiology, Institute of Epidemiology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Michelle Simon
- MRC Harwell Institute, Mammalian Genetics Unit, Harwell Campus, Oxfordshire, United Kingdom
| | - Stefanie Leuchtenberger
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Neuherberg, Germany
| | - Mark Griffiths
- Mouse Informatics Group, Wellcome Sanger Institute, Hinxton, United Kingdom
| | - Robert Brommage
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Neuherberg, Germany
| | - Piia Keskivali-Bond
- MRC Harwell Institute, Mammalian Genetics Unit, Harwell Campus, Oxfordshire, United Kingdom
| | - Harald Grallert
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- Research Unit of Molecular Epidemiology, Institute of Epidemiology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Thomas Werner
- Internal Medicine Nephrology and Center for Computational Medicine & Bioinformatics, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Raffaele Teperino
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Neuherberg, Germany
| | - Lore Becker
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Neuherberg, Germany
| | - Gregor Miller
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Neuherberg, Germany
| | - Ala Moshiri
- University of California-Davis School of Medicine, Sacramento, California, United States of America
| | - John R. Seavitt
- Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Derek D. Cissell
- Department of Surgical & Radiological Sciences, University of California, Davis, California, United States of America
| | - Terrence F. Meehan
- European Molecular Biology Laboratory- European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, United Kingdom
| | - Elif F. Acar
- The Center for Phenogenomics, Toronto, Ontario, Canada
- The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
- Department of Statistics, University of Manitoba, Winnipeg, Manitoba, Canada
| | | | - Ann M. Flenniken
- The Center for Phenogenomics, Toronto, Ontario, Canada
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Ontario, Canada
| | - Marie-France Champy
- Université de Strasbourg, CNRS, INSERM, IGBMC, PHENOMIN-ICS, Illkirch, France
| | - Tania Sorg
- Université de Strasbourg, CNRS, INSERM, IGBMC, PHENOMIN-ICS, Illkirch, France
| | - Abdel Ayadi
- Université de Strasbourg, CNRS, INSERM, IGBMC, PHENOMIN-ICS, Illkirch, France
| | - Robert E. Braun
- The Jackson Laboratory, 600 Main Street, Bar Harbor, Maine, United States of America
| | - Heather Cater
- MRC Harwell Institute, Mary Lyon Centre, Harwell Campus, Oxfordshire, United Kingdom
| | - Mary E. Dickinson
- Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
- Departments of Molecular Physiology & Biophysics, Baylor College of Medicine, One Baylor Plaza, Houston,Texas, United States of America
| | - Paul Flicek
- European Molecular Biology Laboratory- European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, United Kingdom
| | - Juan Gallegos
- Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
- Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, United States of America
| | - Elena J. Ghirardello
- Molecular Endocrinology Laboratory, Department of Metabolism, Digestion and Reproduction, Imperial College London, Hammersmith Campus, London, United Kingdom
| | - Jason D. Heaney
- Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
- Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, United States of America
| | - Sylvie Jacquot
- Université de Strasbourg, CNRS, INSERM, IGBMC, PHENOMIN-ICS, Illkirch, France
| | - Connor Lally
- MRC Harwell Institute, Mary Lyon Centre, Harwell Campus, Oxfordshire, United Kingdom
| | - John G. Logan
- Molecular Endocrinology Laboratory, Department of Metabolism, Digestion and Reproduction, Imperial College London, Hammersmith Campus, London, United Kingdom
| | - Lydia Teboul
- MRC Harwell Institute, Mary Lyon Centre, Harwell Campus, Oxfordshire, United Kingdom
| | - Jeremy Mason
- European Molecular Biology Laboratory- European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, United Kingdom
| | - Nadine Spielmann
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Neuherberg, Germany
| | - Colin McKerlie
- The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Stephen A. Murray
- The Jackson Laboratory, 600 Main Street, Bar Harbor, Maine, United States of America
| | - Lauryl M. J. Nutter
- The Center for Phenogenomics, Toronto, Ontario, Canada
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Ontario, Canada
| | - Kristian F. Odfalk
- Advanced Technologies Cores, Baylor College of Medicine, One Baylor Plaza, Houston Texas, United States of America
| | - Helen Parkinson
- European Molecular Biology Laboratory- European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, United Kingdom
| | - Jan Prochazka
- Czech Center for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences,Vestec, Czech Republic
| | - Corey L. Reynolds
- Departments of Molecular Physiology & Biophysics, Baylor College of Medicine, One Baylor Plaza, Houston,Texas, United States of America
| | - Mohammed Selloum
- Université de Strasbourg, CNRS, INSERM, IGBMC, PHENOMIN-ICS, Illkirch, France
| | - Frantisek Spoutil
- Czech Center for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences,Vestec, Czech Republic
| | - Karen L. Svenson
- The Jackson Laboratory, 600 Main Street, Bar Harbor, Maine, United States of America
| | - Taylor S. Vales
- Advanced Technologies Cores, Baylor College of Medicine, One Baylor Plaza, Houston Texas, United States of America
| | - Sara E. Wells
- MRC Harwell Institute, Mary Lyon Centre, Harwell Campus, Oxfordshire, United Kingdom
| | - Jacqueline K. White
- The Jackson Laboratory, 600 Main Street, Bar Harbor, Maine, United States of America
| | - Radislav Sedlacek
- Czech Center for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences,Vestec, Czech Republic
| | - Wolfgang Wurst
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Neuherberg, Germany
- Chair of Developmental Genetics, TUM School of Life Sciences (SoLS), Technische Universität München, Freising, Germany
- Deutsches Institut für Neurodegenerative Erkrankungen (DZNE) Site Munich, Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), Adolf-Butenandt-Institut, Ludwig-Maximilians-Universität München, Munich, Germany
| | - K. C. Kent Lloyd
- Department of Surgery, School of Medicine and Mouse Biology Program, University of California Davis
| | - Peter I. Croucher
- Garvan Institute of Medical Research, Sydney, New South Wales, Australia
- St Vincent’s Clinical School, Faculty of Medicine, Sydney, New South Wales, Australia
- School of Biotechnology and Biomolecular Sciences, UNSW Australia, Sydney, New South Wales, Australia
| | - Helmut Fuchs
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Neuherberg, Germany
| | - Graham R. Williams
- Molecular Endocrinology Laboratory, Department of Metabolism, Digestion and Reproduction, Imperial College London, Hammersmith Campus, London, United Kingdom
| | - J. H. Duncan Bassett
- Molecular Endocrinology Laboratory, Department of Metabolism, Digestion and Reproduction, Imperial College London, Hammersmith Campus, London, United Kingdom
| | - Valerie Gailus-Durner
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Neuherberg, Germany
| | - Yann Herault
- Université de Strasbourg, CNRS, INSERM, IGBMC, Illkirch, France
- Université de Strasbourg, CNRS, INSERM, IGBMC, PHENOMIN-ICS, Illkirch, France
| | - Ann-Marie Mallon
- MRC Harwell Institute, Mammalian Genetics Unit, Harwell Campus, Oxfordshire, United Kingdom
| | - Steve D. M. Brown
- MRC Harwell Institute, Mammalian Genetics Unit, Harwell Campus, Oxfordshire, United Kingdom
| | - Philipp Mayer-Kuckuk
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Neuherberg, Germany
| | - Martin Hrabe de Angelis
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, Neuherberg, Germany
- Chair of Experimental Genetics, TUM School of Life Sciences (SoLS), Technische Universität München, Freising, Germany
- * E-mail:
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von Gunten S, Simon HU. Linking glucocorticoid-induced osteoporosis to osteoimmunology. Cell Death Dis 2020; 11:1026. [PMID: 33311437 PMCID: PMC7734061 DOI: 10.1038/s41419-020-03250-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/05/2020] [Accepted: 11/13/2020] [Indexed: 12/18/2022]
Affiliation(s)
| | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, Bern, Switzerland
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dos Santos TS, Teng PY, Yadav S, Castro FLDS, Gould RL, Craig SW, Chen C, Fuller AL, Pazdro R, Sartori JR, Kim WK. Effects of Inorganic Zn and Cu Supplementation on Gut Health in Broiler Chickens Challenged With Eimeria spp. Front Vet Sci 2020; 7:230. [PMID: 32426385 PMCID: PMC7212353 DOI: 10.3389/fvets.2020.00230] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 04/06/2020] [Indexed: 11/13/2022] Open
Abstract
An experiment was conducted to evaluate the effect of different levels of inorganic copper and zinc on growth performance, intestinal permeability, intestinal lesion scores, oocyst shedding, antioxidant properties and bone quality in broilers challenged with Eimeria spp. A total of 360 d-old male Cobb broiler chickens were housed in floor cages for 12 days at the Poultry Research Center. At 12 days of age, birds were placed in grower Petersime batteries and distributed in a completely randomized design with 10 birds per cage, six replicates per treatment, and six treatments. There were six corn-soybean meal-based dietary treatments: non-challenged control (NC), challenged control (CC), 100 ppm Cu (100 Cu), 150 ppm Cu (150 Cu), 80 ppm Zn (80 Zn), and 100 ppm Zn (100 Zn). Broilers received the treatment diets for 9 days (12-20d). Birds, except NC, were challenged with Eimeria maxima (50,000 oocysts/bird), Eimeria tenella (50,000 oocysts/bird), and Eimeria acervulina (250,000 oocysts/bird) on 14d. On 20d, the growth performance was recorded, and one bird/cage was used for analysis of intestinal permeability, antioxidant properties and bone quality. Lesion score was recorded at 20 days of age in eight birds/cage. The means were subjected to ANOVA and, when significant, compared by Duncan's test. Intestinal permeability was significantly improved when birds received the 100 Zn diet (P < 0.05). In addition, lesion scores on duodenum were reduced when broilers received diets 150 Cu as compared to CC diet (P < 0.05). However, growth performance was not positively influenced by inclusion of inorganic minerals as compared to the NC diet. Furthermore, activity of superoxide dismutase and bone quality were not affected, whereas glutathione status was improved with mineral supplementation in all groups. This study showed that Cu and Zn supplementation improves intestinal integrity during the Eimeria spp. infection, suggesting that Cu and Zn supplementation would be a potential strategy to reduce detrimental effects of Eimeria infection in broilers.
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Affiliation(s)
- Tatiane Souza dos Santos
- Department of Breeding and Animal Nutrition, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, Brazil
| | - Po-Yun Teng
- Department of Poultry Science, University of Georgia (UGA), Athens, GA, United States
| | - Sudhir Yadav
- Department of Poultry Science, University of Georgia (UGA), Athens, GA, United States
| | | | - Rebecca Lizabeth Gould
- Department of Foods and Nutrition, University of Georgia (UGA), Athens, GA, United States
| | - Steven Wesley Craig
- Department of Foods and Nutrition, University of Georgia (UGA), Athens, GA, United States
| | - Chongxiao Chen
- Department of Poultry Science, University of Georgia (UGA), Athens, GA, United States
| | | | - Robert Pazdro
- Department of Foods and Nutrition, University of Georgia (UGA), Athens, GA, United States
| | - José Roberto Sartori
- Department of Breeding and Animal Nutrition, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, Brazil
| | - Woo Kyun Kim
- Department of Poultry Science, University of Georgia (UGA), Athens, GA, United States
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The Interplay between Immune System and Microbiota in Osteoporosis. Mediators Inflamm 2020; 2020:3686749. [PMID: 32184701 PMCID: PMC7061131 DOI: 10.1155/2020/3686749] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 01/27/2020] [Accepted: 02/04/2020] [Indexed: 01/04/2023] Open
Abstract
Osteoporosis is a disease characterized by low bone mass and alterations of bone microarchitecture, with an increased risk of fractures. It is a multifactorial disorder that is more frequent in postmenopausal women but can be associated to other diseases (inflammatory and metabolic diseases). At present, several options are available to treat osteoporosis trying to block bone reabsorption and reduce the risk of fracture. Anyway, these drugs have safety and tolerance problems in long-term treatment. Recently, gut microbiota has been highlighted to have strong influence on bone metabolism, becoming a potential new target to modify bone mineral density. Such evidences are mainly based on mouse models, showing an involvement in modulating the interaction between the immune system and bone cells. Germ-free mice represent a basic model to understand the interaction between microbiota, immune system, and bone cells, even though data are controversial. Anyway, such models have unequivocally demonstrated a connection between such systems, even if the mechanism is unclear. Gut microbiota is a complex system that influences calcium and vitamin D absorption and modulates gut permeability, hormonal secretion, and immune response. A key role is played by the T helper 17 lymphocytes, TNF, interleukin 17, and RANK ligand system. Other important pathways include NOD1, NOD2, and Toll-like receptor 5. Prebiotics and probiotics are a wide range of substances and germs that can influence and modify microbiota. Several studies demonstrated actions by different prebiotics and probiotics in different animals, differing according to sex, age, and hormonal status. Data on the effects on humans are poor and controversial. Gut microbiota manipulation appears a possible strategy to prevent and treat osteopenia and/or osteoporosis as well as other possible bone alterations, even though further clinical studies are necessary to identify correct procedures in humans.
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Khan SF, Damerell V, Omar R, Du Toit M, Khan M, Maranyane HM, Mlaza M, Bleloch J, Bellis C, Sahm BDB, Peres J, ArulJothi KN, Prince S. The roles and regulation of TBX3 in development and disease. Gene 2020; 726:144223. [PMID: 31669645 PMCID: PMC7108957 DOI: 10.1016/j.gene.2019.144223] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 10/18/2019] [Accepted: 10/22/2019] [Indexed: 12/18/2022]
Abstract
TBX3, a member of the ancient and evolutionary conserved T-box transcription factor family, is a critical developmental regulator of several structures including the heart, mammary glands, limbs and lungs. Indeed, mutations in the human TBX3 lead to ulnar mammary syndrome which is characterized by several clinical malformations including hypoplasia of the mammary and apocrine glands, defects of the upper limb, areola, dental structures, heart and genitalia. In contrast, TBX3 has no known function in adult tissues but is frequently overexpressed in a wide range of epithelial and mesenchymal derived cancers. This overexpression greatly impacts several hallmarks of cancer including bypass of senescence, apoptosis and anoikis, promotion of proliferation, tumour formation, angiogenesis, invasion and metastatic capabilities as well as cancer stem cell expansion. The debilitating consequences of having too little or too much TBX3 suggest that its expression levels need to be tightly regulated. While we have a reasonable understanding of the mutations that result in low levels of functional TBX3 during development, very little is known about the factors responsible for the overexpression of TBX3 in cancer. Furthermore, given the plethora of oncogenic processes that TBX3 impacts, it must be regulating several target genes but to date only a few have been identified and characterised. Interestingly, while there is compelling evidence to support oncogenic roles for TBX3, a few studies have indicated that it may also have tumour suppressor functions in certain contexts. Together, the diverse functional elasticity of TBX3 in development and cancer is thought to involve, in part, the protein partners that it interacts with and this area of research has recently received some attention. This review provides an insight into the significance of TBX3 in development and cancer and identifies research gaps that need to be explored to shed more light on this transcription factor.
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Affiliation(s)
- Saif F Khan
- Division of Cell Biology, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Observatory, 7925, Cape Town, South Africa
| | - Victoria Damerell
- Division of Cell Biology, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Observatory, 7925, Cape Town, South Africa
| | - Rehana Omar
- Division of Cell Biology, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Observatory, 7925, Cape Town, South Africa
| | - Michelle Du Toit
- Division of Cell Biology, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Observatory, 7925, Cape Town, South Africa
| | - Mohsin Khan
- Division of Cell Biology, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Observatory, 7925, Cape Town, South Africa
| | - Hapiloe Mabaruti Maranyane
- Division of Cell Biology, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Observatory, 7925, Cape Town, South Africa
| | - Mihlali Mlaza
- Division of Cell Biology, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Observatory, 7925, Cape Town, South Africa
| | - Jenna Bleloch
- Division of Cell Biology, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Observatory, 7925, Cape Town, South Africa
| | - Claire Bellis
- Division of Cell Biology, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Observatory, 7925, Cape Town, South Africa
| | - Bianca D B Sahm
- Division of Cell Biology, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Observatory, 7925, Cape Town, South Africa; Department of Pharmacology, Institute of Biomedical Science, University of São Paulo, São Paulo, SP 11030-400, Brazil
| | - Jade Peres
- Division of Cell Biology, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Observatory, 7925, Cape Town, South Africa
| | - K N ArulJothi
- Division of Cell Biology, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Observatory, 7925, Cape Town, South Africa
| | - Sharon Prince
- Division of Cell Biology, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Observatory, 7925, Cape Town, South Africa.
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Mazzaferro S, Cianciolo G, De Pascalis A, Guglielmo C, Urena Torres PA, Bover J, Tartaglione L, Pasquali M, La Manna G. Bone, inflammation and the bone marrow niche in chronic kidney disease: what do we know? Nephrol Dial Transplant 2019; 33:2092-2100. [PMID: 29733407 DOI: 10.1093/ndt/gfy115] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 04/02/2018] [Indexed: 02/06/2023] Open
Abstract
Recent improvements in our understanding of physiology have altered the way in which bone is perceived: no longer is it considered as simply the repository of divalent ions, but rather as a sophisticated endocrine organ with potential extraskeletal effects. Indeed, a number of pathologic conditions involving bone in different ways can now be reconsidered from a bone-centred perspective. For example, in metabolic bone diseases like osteoporosis (OP) and renal osteodystrophy (ROD), the association with a worse cardiovascular outcome can be tentatively explained by the possible derangements of three recently discovered bone hormones (osteocalcin, fibroblast growth factor 23 and sclerostin) and a bone-specific enzyme (alkaline phosphatase). Further, in recent years the close link between bone and inflammation has been better appreciated and a wide range of chronic inflammatory states (from rheumatoid arthritis to ageing) are being explored to discover the biochemical changes that ultimately lead to bone loss and OP. Also, it has been acknowledged that the concept of the bone-vascular axis may explain, for example, the relationship between bone metabolism and vessel wall diseases like atherosclerosis and arteriosclerosis, with potential involvement of a number of cytokines and metabolic pathways. A very important discovery in bone physiology is the bone marrow (BM) niche, the functional unit where stem cells interact, exchanging signals that impact on their fate as bone-forming cells or immune-competent haematopoietic elements. This new element of bone physiology has been recognized to be dysfunctional in diabetes (so-called diabetic mobilopathy), with possible clinical implications. In our opinion, ROD, the metabolic bone disease of renal patients, will in the future probably be identified as a cause of BM niche dysfunction. An integrated view of bone, which includes the BM niche, now seems necessary in order to understand the complex clinical entity of chronic kidney disease-mineral and bone disorders and its cardiovascular burden. Bone is thus becoming a recurrently considered paradigm for different inter-organ communications that needs to be considered in patients with complex diseases.
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Affiliation(s)
- Sandro Mazzaferro
- Department of Cardiovascular Respiratory Nephrologic Geriatric and Anesthetic Sciences, Sapienza University of Rome, Rome, Italy.,Nephrology Unit, Azienda Ospedaliero-Universitaria Policlinico Umberto I, Rome, Italy
| | - Giuseppe Cianciolo
- Department of Experimental Diagnostic and Specialty Medicine (DIMES), Nephrology, Dialysis and Renal Transplant Unit, St Orsola Hospital, University of Bologna, Bologna, Italy
| | - Antonio De Pascalis
- Nephrology, Dialysis and Renal Transplant Unit, Vito Fazzi Hospital, Lecce, Italy
| | - Chiara Guglielmo
- Department of Experimental Diagnostic and Specialty Medicine (DIMES), Nephrology, Dialysis and Renal Transplant Unit, St Orsola Hospital, University of Bologna, Bologna, Italy
| | - Pablo A Urena Torres
- Ramsay-Générale de Santé, Clinique du Landy, Department of Nephrology and Dialysis and Department of Renal Physiology, Necker Hospital, University of Paris Descartes, Paris, France
| | - Jordi Bover
- Fundació Puigvert, Department of Nephrology IIB Sant Pau, RedinRen, Barcelona, Catalonia, Spain
| | - Lida Tartaglione
- Department of Cardiovascular Respiratory Nephrologic Geriatric and Anesthetic Sciences, Sapienza University of Rome, Rome, Italy
| | - Marzia Pasquali
- Nephrology Unit, Azienda Ospedaliero-Universitaria Policlinico Umberto I, Rome, Italy
| | - Gaetano La Manna
- Department of Experimental Diagnostic and Specialty Medicine (DIMES), Nephrology, Dialysis and Renal Transplant Unit, St Orsola Hospital, University of Bologna, Bologna, Italy
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Analysis of methylation datasets identified significantly changed genes and functional pathways in osteoarthritis. Clin Rheumatol 2019; 38:3529-3538. [PMID: 31376087 DOI: 10.1007/s10067-019-04700-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 07/11/2019] [Accepted: 07/15/2019] [Indexed: 01/15/2023]
Abstract
BACKGROUND Researches indicate that epigenetics was involved in osteoarthritis (OA). The purpose of this study was to describe the alterations of DNA methylation in hip and knee OA by comparing DNA methylome of OA cartilage and non-OA samples and to identify novel genes and pathways associated with OA. METHODS We gained two expression profiling datasets (GSE73626 and GSE63695) from the GEO dataset. The RnBeads in R package was used to identify differentially methylated CpG sites. Genes that showed significant differences in DNA methylation between OA and normal control groups underwent functional annotation analysis using the online tool of GeneCodis. Furthermore, we used the Sequenom MassARRAY platform (CapitalBio, Beijing, China) to perform the quantitative methylation analysis. RESULTS A total of 249 hypermethylated sites and 96 hypomethylated sites were obtained from OA samples compared with normal control samples. Functional analysis of differentially methylated genes obtained that embryonic skeletal system morphogenesis, cartilage development, and skeletal system development may be involved in the pathogenesis of OA. Eight genes including HOXB3, HOXB4, HOXB6, HOXC4, HOXC10, HOXD3, TBX3, and TBX5 were identified as potential novel biomarkers for OA. CONCLUSION Taken together, our study found different molecular characteristics between OA patients and normal controls. This may provide new clues to elucidate the pathogenesis of OA.Key Points• Embryonic skeletal system morphogenesis, cartilage development, skeletal system development may be involved in the pathogenesis of OA.• Eight genes are identified as potential novel markers for OA.• Our future in vivo molecular intervention experiments will extend our current findings.
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Akbari Moghaddam Kakhki R, Lu Z, Thanabalan A, Leung H, Mohammadigheisar M, Kiarie E. Eimeria challenge adversely affected long bone attributes linked to increased resorption in 14-day-old broiler chickens. Poult Sci 2019; 98:1615-1621. [PMID: 30544238 PMCID: PMC6414031 DOI: 10.3382/ps/pey527] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 10/26/2018] [Indexed: 12/21/2022] Open
Abstract
There is limited information on the effects of enteric pathogen on bone quality in rapidly growing broiler chicks. We examined tibia and femur attributes (length, diameter, relative weight of ash content [AC] to the BW, ash concentration [AP]) and serum bone-turnover markers including receptor activator of nuclear factor kappa-B ligand (RANKL) for resorption, alkaline phosphatase (ALP) for mineralization, and selected serum metabolites in 14-day-old broilers challenged with Eimeria. A total of 160 (80 males and 80 females) 1-day-old Ross × Ross 708 chicks were used. Based on BW, birds were placed within sex in cages (5 birds per cage) and fed chick starter diets to day 9 of age. On day 9, half of the cages were orally gavaged with 1 mL of Eimeria culture (100,000 oocysts of E. acervulina and 25,000 oocysts of E. maxima) and the other half (unchallenged control) received 1 mL 0.9% saline in distilled water. On day 14, 2 birds were randomly selected and necropsied for intestinal lesion score, blood, tibia, and femur samples. Data were analyzed in a 2 (challenged vs. unchallenged) × 2 (males vs. females) factorial arrangement. There was no interaction (P > 0.05) between Eimeria and sex on any measurement. Whereas there were no intestinal lesions in unchallenged birds, Eimeria resulted in lesion score (0 to 4) of 3.35, 2.59 and 0.11 in duodenum, jejunum and ileum, respectively. Eimeria challenge decreased (P < 0.05) tibia AC and AP by 10 and 8.2%, respectively but had no (P > 0.10) effect on femur attributes. Generally, males showed (P < 0.05) longer and wider bones with more AC compared with the female. Circulating serum RANKL concentration increased (P = 0.017) in response to Eimeria challenge and was negatively correlated with tibia AC (-0.731; P = 0.021). Our findings showed that Eimeria damage to the intestinal physiology had adverse effects on long bone attributes linked to increased resorption.
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Affiliation(s)
| | - Z Lu
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - A Thanabalan
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - H Leung
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - M Mohammadigheisar
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - E Kiarie
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
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Sardar S, Kerr A, Vaartjes D, Moltved ER, Karosiene E, Gupta R, Andersson Å. The oncoprotein TBX3 is controlling severity in experimental arthritis. Arthritis Res Ther 2019; 21:16. [PMID: 30630509 PMCID: PMC6329118 DOI: 10.1186/s13075-018-1797-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 12/14/2018] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Development of autoimmune diseases is the result of a complex interplay between hereditary and environmental factors, with multiple genes contributing to the pathogenesis in human disease and in experimental models for disease. The T-box protein 3 is a transcriptional repressor essential during early embryonic development, in the formation of bone and additional organ systems, and in tumorigenesis. METHODS With the aim to find novel genes important for autoimmune inflammation, we have performed genetic studies of collagen-induced arthritis (CIA), a mouse experimental model for rheumatoid arthritis. RESULTS We showed that a small genetic fragment on mouse chromosome 5, including Tbx3 and three additional protein-coding genes, is linked to severe arthritis and high titers of anti-collagen antibodies. Gene expression studies have revealed differential expression of Tbx3 in B cells, where low expression was accompanied by a higher B cell response upon B cell receptor stimulation in vitro. Furthermore, we showed that serum TBX3 levels rise concomitantly with increasing severity of CIA. CONCLUSIONS From these results, we suggest that TBX3 is a novel factor important for the regulation of gene transcription in the immune system and that genetic polymorphisms, resulting in lower expression of Tbx3, are contributing to a more severe form of CIA and high titers of autoantibodies. We also propose TBX3 as a putative diagnostic biomarker for rheumatoid arthritis.
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Affiliation(s)
- Samra Sardar
- Section for Molecular and Cellular Pharmacology, Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
- Present address: Nordic Bioscience A/S, Copenhagen, Denmark
| | - Alish Kerr
- Section for Molecular and Cellular Pharmacology, Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
- Present address: Nuritas, Dublin, Ireland
| | - Daniëlle Vaartjes
- Section for Molecular and Cellular Pharmacology, Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
- Present address: Division of Medical Inflammation Research, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Emilie Riis Moltved
- Section for Molecular and Cellular Pharmacology, Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
- Present address: IQVIA, Copenhagen, Denmark Denmark
| | - Edita Karosiene
- Department of Bio and Health Informatics, Kemitorvet 208, Technical University of Denmark, Lyngby, Denmark
- Present address: Novo Nordisk A/S, Copenhagen, Denmark
| | - Ramneek Gupta
- Department of Bio and Health Informatics, Kemitorvet 208, Technical University of Denmark, Lyngby, Denmark
| | - Åsa Andersson
- Section for Molecular and Cellular Pharmacology, Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
- Rydberg Laboratory of Applied Sciences, ETN, Halmstad University, Halmstad, Sweden
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Chaugule S, Kashipathi Sureshbabu S, Dakave S, Krishna CM, Chaudhari P, Indap M, Chiplunkar S. Hexane Fraction of Turbo brunneus Inhibits Intermediates of RANK-RANKL Signaling Pathway and Prevent Ovariectomy Induced Bone Loss. Front Endocrinol (Lausanne) 2019; 10:608. [PMID: 31555218 PMCID: PMC6742724 DOI: 10.3389/fendo.2019.00608] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 08/21/2019] [Indexed: 01/04/2023] Open
Abstract
Osteoporosis is a "silent disease" characterized by fragile and impaired bone quality. Bone fracture results in increased mortality and poor quality of life in aged people particularly in postmenopausal women. Bone is maintained through the delicate balance between osteoclast-mediated bone resorption and osteoblast-mediated bone formation. The imbalance is caused most often by overly active osteoclasts due to estrogen deficiency. Natural products have long been used to prevent and treat osteoporosis since they have fewer side effects. The marine environment is a potential source of biologically and structurally novel biomolecules with promising biological activities but is less explored for the treatment of bone-related diseases. The present study aims to evaluate the antiosteoporotic effect of Hexane fraction of Turbo brunneus methanolic extract (HxTME) and to investigate its role in RANK-RANKL signaling pathway using in vitro osteoclasts cultures and in vivo ovariectomized (OVX) Swiss mice model. The present study demonstrated that the HxTME significantly inhibited RANKL induced osteoclast differentiation and maturation in vitro. HxTME completely downregulated the mRNA expression of key transcription factors such as NFATc1, c-FOS, and osteoclasts related genes involved in osteoclastogenesis. In vivo studies also depicted the effectiveness of HxTME in ovariectomized mice by preserving bone microarchitecture, mineral content, and inhibiting bone loss in treated mice as analyzed by Histomorphometry, MicroCT, and Raman spectroscopy. Oral administration of HxTME fraction resulted in the decreased percentage of F4/80+, CD11b+, and CD4+ RANKL+ T cells in OVX mice whereas pro-osteoclastic cytokine, IL6 was markedly reduced upon treatment with HxTME. On stimulation with PMA/Io and PHA, a significant decrease in proliferative response in the splenocytes of HxTME treated OVX mice was observed. Fatty acid profiling revealed that HxTME is rich in ω3 and ω6 polyunsaturated fatty acids (PUFAs), which have high nutraceutical properties and are known to play important role in growth, development and maintenance of health. Therefore, HxTME may be a good source of nutraceutical in the treatment of bone-related diseases particularly in postmenopausal osteoporosis and may be pursued as a potential candidate for treatment and management of osteoporosis.
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Affiliation(s)
- Sachin Chaugule
- Chiplunkar Lab, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai, India
- Central Research Laboratory, D. G. Ruparel College, Mumbai, India
| | - Shalini Kashipathi Sureshbabu
- Chiplunkar Lab, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
| | - Suresh Dakave
- Chiplunkar Lab, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai, India
| | - C. Murali Krishna
- Homi Bhabha National Institute, Mumbai, India
- Chilakapati Laboratory, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai, India
| | - Pradip Chaudhari
- Homi Bhabha National Institute, Mumbai, India
- Comparative Oncology Program and Small Animal Imaging Facility, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai, India
| | - Madhavi Indap
- Central Research Laboratory, D. G. Ruparel College, Mumbai, India
- *Correspondence: Madhavi Indap
| | - Shubhada Chiplunkar
- Chiplunkar Lab, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
- Shubhada Chiplunkar
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Lechner J, Rudi T, von Baehr V. Osteoimmunology of tumor necrosis factor-alpha, IL-6, and RANTES/CCL5: a review of known and poorly understood inflammatory patterns in osteonecrosis. Clin Cosmet Investig Dent 2018; 10:251-262. [PMID: 30519117 PMCID: PMC6233471 DOI: 10.2147/ccide.s184498] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background The immune and bone systems are closely linked via cytokine cross-talk. This interdisciplinary field of research is referred to as osteoimmunology and pertains to inflammatory and osteoarticular diseases that feature the primary expression of tumor necrosis factor-alpha (TNF-α) and IL-6. Objective Are there bone resorptive processes wherein chronic inflammatory conditions are not linked to TNF-α and IL-6 expression, but rather to the expression of other cytokines? Materials and methods A comprehensive literature search was performed in PubMed Central. Discussion Although all diseases with cytokines involved in bone resorption (TNF-α and IL-6) are at the forefront of destructive inflammatory processes, there is one exception in the literature: fatty oxide osteoporosis/osteolysis in the jawbone (FDOJ), which is associated with significant bone softening. However, it should be noted that TNF-α and IL-6 fall below the levels found in a healthy jawbone in this condition. Another conspicuous finding is that there is a nearly 35-fold overexpression of the chemokine RANTES/CCL5 (R/C) in all FDOJ cases studied thus far in the literature. Conclusion FDOJ appears to represent a unique cytokine and inflammatory pattern from osteolysis in the body. R/C can be defined as the dominant carrier of a “maxillomandibular osteoimmunology”.
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Affiliation(s)
- Johann Lechner
- Clinic for Integrative Dentistry, Munich 81547, Germany,
| | - Tatjana Rudi
- Institute for Epidemiological Studies, Berlin 10709, Germany
| | - Volker von Baehr
- Department of Immunology and Allergology, Institute for Medical Diagnostics in MVZ GbR, Berlin 12247, Germany
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Abstract
PURPOSE OF REVIEW The role of the gut microbiome in the pathogenesis of several inflammatory, non-AIDS comorbidities, such as cardiovascular disease, cognitive impairment and liver disease has become a focus of recent research. Low bone mineral density (BMD) and increased fracture incidence in people living with HIV (PLWH) is also widely reported, however, the relationship between alterations in the gut microbiome and bone disease in PLWH has not been previously reviewed. RECENT FINDINGS Murine models that manipulate the gut microbiome, either through breeding of 'germ-free' mice or antibiotic-depleted gut microbiome, show differences in bone mineral density and bone mass in those with altered gut microbiome. This effect is reported to be driven via changes in the gut-immune-skeletal axis, with changes favouring bone resorption. Several inflammatory conditions wherever bone loss is a prominent feature, such as rheumatoid arthritis and inflammatory bowel disease, have also reported alterations in the gut microbiome, which are associated with bone loss, again through changes in the gut-immune-skeletal axis. SUMMARY The interplay between the gut microbiome and the immune-skeletal axis in HIV represents a complex relationship. Alterations in the gut microbiome, which induce an activated immune phenotype and inflammatory milieu are associated with non-AIDS comorbidities in PLWH and bone loss in several other conditions characterized by chronic immune activation and inflammation. It is, therefore, likely that there are comparable effects between altered gut microbiome and bone loss in HIV, however, further research is required to better define this relationship in populations of PLWH.
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Commensal Microbiota Enhance Both Osteoclast and Osteoblast Activities. Molecules 2018; 23:molecules23071517. [PMID: 29937485 PMCID: PMC6100304 DOI: 10.3390/molecules23071517] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 06/19/2018] [Accepted: 06/21/2018] [Indexed: 12/19/2022] Open
Abstract
Recent studies suggest that the commensal microbiota affects not only host energy metabolism and development of immunity but also bone remodeling by positive regulation of osteoclast activity. However, the mechanism of regulation of bone cells by the commensal microbiota has not been elucidated. In this study, 8-week-old specific pathogen-free (SPF) and germ-free (GF) mice were compared in terms of alveolar bones and primary osteoblasts isolated from calvarias. Micro-CT analysis showed that SPF mice had larger body size associated with lower bone mineral density and bone volume fraction in alveolar bones compared with GF mice. Greater numbers of osteoclasts in alveolar bone and higher serum levels of tartrate-resistant acid phosphatase 5b were observed in SPF mice. Tissue extracts from SPF alveolar bone showed higher levels of cathepsin K, indicating higher osteoclast activity. SPF alveolar extracts also showed elevated levels of γ-carboxylated glutamic acid⁻osteocalcin as a marker of mature osteoblasts compared with GF mice. Polymerase chain reaction (PCR) array analysis of RNA directly isolated from alveolar bone showed that in SPF mice, expression of mRNA of osteocalcin, which also acts as an inhibitor of bone mineralization, was strongly enhanced compared with GF mice. Cultured calvarial osteoblasts from SPF mice showed reduced mineralization but significantly enhanced expression of mRNAs of osteocalcin, alkaline phosphatase, insulin-like growth factor-I/II, and decreased ratio of osteoprotegerin/receptor activator of nuclear factor-kappa B ligand compared with GF mice. Furthermore, PCR array analyses of transcription factors in cultured calvarial osteoblasts showed strongly upregulated expression of Forkhead box g1. In contrast, Gata-binding protein 3 was strongly downregulated in SPF osteoblasts. These results suggest that the commensal microbiota prevents excessive mineralization possibly by stimulating osteocalcin expression in osteoblasts, and enhances both osteoblast and osteoclast activity by regulating specific transcription factors.
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Quach D, Britton RA. Gut Microbiota and Bone Health. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1033:47-58. [PMID: 29101651 DOI: 10.1007/978-3-319-66653-2_4] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The past decade has seen an explosion of research in the area of how the bacteria that inhabit the human body impact health and disease. One of the more surprising concepts to emerge from this work is the ability of the intestinal microbiota to impact virtually all systems in the body. Recently, the role of gut bacteria in bone health and disease has received more significant attention. In this chapter, we review what has been learned about how the gut microbiome impacts bone health and discuss possible mechanisms of how the gut-bone axis may be connected. We also discuss the use of therapeutic microbes in the modulation of bone health. Finally, we propose an emerging field of the gut-brain-bone axis, in which the gut drives bone physiology via regulation of key hormones that are originally synthesized in the brain.
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Affiliation(s)
- Darin Quach
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, USA
| | - Robert A Britton
- Baylor College of Medicine, Department of Molecular Virology and Microbiology, Alkek Center for Metagenomics and Microbiome Research, Houston, TX, USA.
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18
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Abstract
The mutualistic interaction between the gut microbiota (GM) and its host profoundly shapes many aspects of our physiology. The composition and activity of the gut microbiota is modulated by environmental factors such as dietary habits and antibiotic treatments. In rodents, studies demonstrate that the GM is a crucial regulator of bone metabolism and that modulation of the GM composition by probiotic interventions can prevent castration-induced bone loss. Short-term colonization of germ-free mice with GM results in an activation of CD4+T cells, resulting in increased levels of pro-inflammatory cytokines in bone and thereby activation of osteoclastic bone resorption. Besides these immune-mediated effects on bone mass, the GM is involved in nutritional uptake and may, thereby, regulate overall body growth and bone sizes possibly mediated via altered IGF-I levels. We recently introduced a new term "osteomicrobiology" for the rapidly emerging research field of the role of the microbiota in bone health. This research field is aimed to bridge the gaps between bone physiology, gastroenterology, immunology, and microbiology. Future studies will determine if the GM is a novel therapeutic target for osteoporosis and if the GM composition might be used as a biomarker for fracture prediction.
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Affiliation(s)
- Claes Ohlsson
- Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Vita Stråket 11, 413 45, Gothenburg, Sweden
| | - Klara Sjögren
- Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Vita Stråket 11, 413 45, Gothenburg, Sweden.
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Amar S, Smith L, Fields GB. Matrix metalloproteinase collagenolysis in health and disease. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2017; 1864:1940-1951. [PMID: 28456643 PMCID: PMC5605394 DOI: 10.1016/j.bbamcr.2017.04.015] [Citation(s) in RCA: 131] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Revised: 04/20/2017] [Accepted: 04/24/2017] [Indexed: 01/08/2023]
Abstract
The proteolytic processing of collagen (collagenolysis) is critical in development and homeostasis, but also contributes to numerous pathologies. Mammalian interstitial collagenolytic enzymes include members of the matrix metalloproteinase (MMP) family and cathepsin K. While MMPs have long been recognized for their ability to catalyze the hydrolysis of collagen, the roles of individual MMPs in physiological and pathological collagenolysis are less defined. The use of knockout and mutant animal models, which reflect human diseases, has revealed distinct collagenolytic roles for MT1-MMP and MMP-13. A better understanding of temporal and spatial collagen processing, along with the knowledge of the specific MMP involved, will ultimately lead to more effective treatments for cancer, arthritis, cardiovascular conditions, and infectious diseases. This article is part of a Special Issue entitled: Matrix Metalloproteinases edited by Rafael Fridman.
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Affiliation(s)
- Sabrina Amar
- Department of Chemistry & Biochemistry, Florida Atlantic University, Jupiter, FL 33458, USA.
| | - Lyndsay Smith
- Department of Chemistry & Biochemistry, Florida Atlantic University, Jupiter, FL 33458, USA.
| | - Gregg B Fields
- Department of Chemistry & Biochemistry, Florida Atlantic University, Jupiter, FL 33458, USA; Department of Chemistry, The Scripps Research Institute/Scripps Florida, Jupiter, FL 33458, USA.
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20
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Ginaldi L, De Martinis M. Osteoimmunology and Beyond. Curr Med Chem 2017; 23:3754-3774. [PMID: 27604089 PMCID: PMC5204071 DOI: 10.2174/0929867323666160907162546] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 09/02/2016] [Accepted: 09/06/2016] [Indexed: 12/27/2022]
Abstract
Abstract: Objective Osteoimmunology investigates interactions between skeleton and immune system. In the light of recent discoveries in this field, a new reading register of osteoporosis is actually emerging, in which bone and immune cells are strictly interconnected. Osteoporosis could therefore be considered a chronic immune mediated disease which shares with other age related disorders a common inflammatory background. Here, we highlight these recent discoveries and the new landscape that is emerging. Method Extensive literature search in PubMed central. Results While the inflammatory nature of osteoporosis has been clearly recognized, other interesting aspects of osteoimmunology are currently emerging. In addition, mounting evidence indicates that the immunoskeletal interface is involved in the regulation of important body functions beyond bone remodeling. Bone cells take part with cells of the immune system in various immunological functions, configuring a real expanded immune system, and are therefore variously involved not only as target but also as main actors in various pathological conditions affecting primarily the immune system, such as autoimmunity and immune deficiencies, as well as in aging, menopause and other diseases sharing an inflammatory background. Conclusion The review highlights the complexity of interwoven pathways and shared mechanisms of the crosstalk between the immune and bone systems. More interestingly, the interdisciplinary field of osteoimmunology is now expanding beyond bone and immune cells, defining new homeostatic networks in which other organs and systems are functionally interconnected. Therefore, the correct skeletal integrity maintenance may be also relevant to other functions outside its involvement in bone mineral homeostasis, hemopoiesis and immunity.
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Affiliation(s)
- Lia Ginaldi
- School and Unit of Allergy and Clinical Immunology, Department of Life, Health, & Environmental Sciences, University of L'Aquila, Italy.
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Role of bone marrow macrophages in controlling homeostasis and repair in bone and bone marrow niches. Semin Cell Dev Biol 2016; 61:12-21. [PMID: 27521519 DOI: 10.1016/j.semcdb.2016.08.009] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 08/09/2016] [Accepted: 08/09/2016] [Indexed: 12/24/2022]
Abstract
Macrophages, named for their phagocytic ability, participate in homeostasis, tissue regeneration and inflammatory responses. Bone and adjacent marrow contain multiple functionally unique resident tissue macrophage subsets which maintain and regulate anatomically distinct niche environments within these interconnected tissues. Three subsets of bone-bone marrow resident tissue macrophages have been characterised; erythroblastic island macrophages, haematopoietic stem cell niche macrophages and osteal macrophages. The role of these macrophages in controlling homeostasis and repair in bone and bone marrow niches is reviewed in detail.
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黄 永, 江 涛, 苏 海, 罗 毅, 侯 秋. [Gut microbiota and osteoporosis]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2016; 37:278-282. [PMID: 28219877 PMCID: PMC6779662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Indexed: 10/15/2023]
Abstract
OBJECTIVE The rapidly evolving aging society in China is associated with increased incidences of osteoporosis and fractures, which have become common health problems that threaten the quality of life of the elderly. Gut microbiota colonizing in the human intestinal tract form a mutual symbiotic relationship with the host and play an important role in the metabolism and immune regulation of the host. In recent years increasing studies have demonstrated that gut microbiota not only affect the digestive system but also contribute to the disease conditions involving the immune system, and have a close relationship with the occurrence and progression of osteoporosis. This review summarizes the progress and hotspots in recent researches of the associations among gut microbiota, the immune system, osteoporosis.
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Affiliation(s)
- 永铨 黄
- 广州中医药大学第二附属医院,广东 广州510006Second Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou 510006, China
| | - 涛 江
- 广州中医药大学第二附属医院,广东 广州510006Second Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou 510006, China
| | - 海涛 苏
- 广州中医药大学第二附属医院,广东 广州510006Second Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou 510006, China
| | - 毅文 罗
- 广州中医药大学第三附属医院,广东 广州510360Third Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou 510360, China
| | - 秋科 侯
- 广州中医药大学第一附属医院,广东 广州510405First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou 510405, China
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黄 永, 江 涛, 苏 海, 罗 毅, 侯 秋. [Gut microbiota and osteoporosis]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2016; 37:278-282. [PMID: 28219877 PMCID: PMC6779662 DOI: 10.3969/j.issn.1673-4254.2017.02.23] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Indexed: 06/06/2023]
Abstract
The rapidly evolving aging society in China is associated with increased incidences of osteoporosis and fractures, which have become common health problems that threaten the quality of life of the elderly. Gut microbiota colonizing in the human intestinal tract form a mutual symbiotic relationship with the host and play an important role in the metabolism and immune regulation of the host. In recent years increasing studies have demonstrated that gut microbiota not only affect the digestive system but also contribute to the disease conditions involving the immune system, and have a close relationship with the occurrence and progression of osteoporosis. This review summarizes the progress and hotspots in recent researches of the associations among gut microbiota, the immune system, osteoporosis.
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Affiliation(s)
- 永铨 黄
- 广州中医药大学第二附属医院,广东 广州510006Second Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou 510006, China
| | - 涛 江
- 广州中医药大学第二附属医院,广东 广州510006Second Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou 510006, China
| | - 海涛 苏
- 广州中医药大学第二附属医院,广东 广州510006Second Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou 510006, China
| | - 毅文 罗
- 广州中医药大学第三附属医院,广东 广州510360Third Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou 510360, China
| | - 秋科 侯
- 广州中医药大学第一附属医院,广东 广州510405First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou 510405, China
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