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Selvakumar B, Sekar P, Samsudin AR. Intestinal macrophages in pathogenesis and treatment of gut leakage: current strategies and future perspectives. J Leukoc Biol 2024; 115:607-619. [PMID: 38198217 DOI: 10.1093/jleuko/qiad165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 11/13/2023] [Accepted: 12/08/2023] [Indexed: 01/12/2024] Open
Abstract
Macrophages play key roles in tissue homeostasis, defense, disease, and repair. Macrophages are highly plastic and exhibit distinct functional phenotypes based on micro-environmental stimuli. In spite of several advancements in understanding macrophage biology and their different functional phenotypes in various physiological and pathological conditions, currently available treatment strategies targeting macrophages are limited. Macrophages' high plasticity and diverse functional roles-including tissue injury and wound healing mechanisms-mark them as potential targets to mine for efficient therapeutics to treat diseases. Despite mounting evidence on association of gut leakage with several extraintestinal diseases, there is no targeted standard therapy to treat gut leakage. Therefore, there is an urgent need to develop therapeutic strategies to treat this condition. Macrophages are the cells that play the largest role in interacting with the gut microbiota in the intestinal compartment and exert their intended functions in injury and repair mechanisms. In this review, we have summarized the current knowledge on the origins and phenotypes of macrophages. The specific role of macrophages in intestinal barrier function, their role in tissue repair mechanisms, and their association with gut microbiota are discussed. In addition, currently available therapies and the putative tissue repair mediators of macrophages for treating microbiota dysbiosis induced gut leakage are also discussed. The overall aim of this review is to convey the intense need to screen for microbiota induced macrophage-released prorepair mediators, which could lead to the identification of potential candidates that could be developed for treating the leaky gut and associated diseases.
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Affiliation(s)
- Balachandar Selvakumar
- Department of Microbiota, Research Institute for Medical and Health Sciences, College of Medicine, University of Sharjah, University City Road, Sharjah, 27272, United Arab Emirates
| | - Priyadharshini Sekar
- Department of Microbiota, Research Institute for Medical and Health Sciences, College of Medicine, University of Sharjah, University City Road, Sharjah, 27272, United Arab Emirates
| | - A Rani Samsudin
- Department of Microbiota, Research Institute for Medical and Health Sciences, College of Medicine, University of Sharjah, University City Road, Sharjah, 27272, United Arab Emirates
- Department of Oral and Craniofacial Health Sciences, College of Dental Medicine, University of Sharjah, University City Road, Sharjah, 27272, United Arab Emirates
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2
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Garemo M, Sundh V, Mellström D, Strandvik B. Serum phospholipid fatty acids are associated with bone mass in healthy 4-years-old children. Prostaglandins Leukot Essent Fatty Acids 2024; 200:102606. [PMID: 38181601 DOI: 10.1016/j.plefa.2023.102606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/21/2023] [Accepted: 12/23/2023] [Indexed: 01/07/2024]
Abstract
BACKGROUND Fatty acids are involved in bone development but knowledge in children is limited. The aim of this study was to investigate bone mass and mineral density in healthy preschool children in relation to fatty acids. MATERIAL AND METHODS In 111 healthy 4-yrs-old children (20 % overweight) bone was analysed by dual X-ray absorptiometry and serum phospholipid fatty acid by gas chromatography. Fat intake was calculated from 7 days self-reported dietary records and food frequency questionnaire. RESULTS Total bone mass content (BMC) and mineral density (BMD) differed by sex in normal weight, but not in overweight children showing generally higher bone mass density than children with normal weight. Linoleic acid intake was strongly correlated to BMC and femoral BMD in normal weight children. Serum concentration of docosahexaenoic acid correlated positively to BMD in all children (p = 0.01), but linoleic and arachidonic acids, and monounsaturated fatty acids showed diverging associations with bone in normal weight and overweight children. CONCLUSION Serum phospholipid DHA was associated with bone density. Other fatty acids associations to bone sites differed in overweight children, analogue to the pattern in healthy 8-yrs-old.The finding need to be confirmed longitudinally and in a larger group of overweight individuals.
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Affiliation(s)
- Malin Garemo
- University of Gothenburg, Department of Pediatrics, Sahlgrenska Academy, Göteborg, Sweden
| | - Valter Sundh
- University of Gothenburg, Department of Community Medicine and Public Health, Institute of Medicine, Sahlgrenska Academy, Göteborg, Sweden
| | - Dan Mellström
- University of Gothenburg, Center for Bone and Arthritis Research, Department of Internal Medicine, Institutet of Medicine, Sahlgrenska Academy, Göteborg, Sweden
| | - Birgitta Strandvik
- Karolinska Institutet, Department of Biosciences and Nutrition, Stockholm, Sweden.
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3
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Grüner N, Ortlepp AL, Mattner J. Pivotal Role of Intestinal Microbiota and Intraluminal Metabolites for the Maintenance of Gut-Bone Physiology. Int J Mol Sci 2023; 24:ijms24065161. [PMID: 36982235 PMCID: PMC10048911 DOI: 10.3390/ijms24065161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 03/03/2023] [Accepted: 03/06/2023] [Indexed: 03/30/2023] Open
Abstract
Intestinal microbiota, and their mutual interactions with host tissues, are pivotal for the maintenance of organ physiology. Indeed, intraluminal signals influence adjacent and even distal tissues. Consequently, disruptions in the composition or functions of microbiota and subsequent altered host-microbiota interactions disturb the homeostasis of multiple organ systems, including the bone. Thus, gut microbiota can influence bone mass and physiology, as well as postnatal skeletal evolution. Alterations in nutrient or electrolyte absorption, metabolism, or immune functions, due to the translocation of microbial antigens or metabolites across intestinal barriers, affect bone tissues, as well. Intestinal microbiota can directly and indirectly alter bone density and bone remodeling. Intestinal dysbiosis and a subsequently disturbed gut-bone axis are characteristic for patients with inflammatory bowel disease (IBD) who suffer from various intestinal symptoms and multiple bone-related complications, such as arthritis or osteoporosis. Immune cells affecting the joints are presumably even primed in the gut. Furthermore, intestinal dysbiosis impairs hormone metabolism and electrolyte balance. On the other hand, less is known about the impact of bone metabolism on gut physiology. In this review, we summarized current knowledge of gut microbiota, metabolites and microbiota-primed immune cells in IBD and bone-related complications.
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Affiliation(s)
- Niklas Grüner
- Mikrobiologisches Institut-Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen and Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Anna Lisa Ortlepp
- Mikrobiologisches Institut-Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen and Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Jochen Mattner
- Mikrobiologisches Institut-Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen and Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg, 91054 Erlangen, Germany
- Medical Immunology Campus Erlangen, Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg, 91054 Erlangen, Germany
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Tayyab S, Rual E, Nagari M. Improving compliance to DEXA in IBD population according to BSG guidelines in Morriston Hospital, Swansea. Clin Med (Lond) 2022; 22 Suppl 4:72-73. [PMID: 38614604 DOI: 10.7861/clinmed.22-4-s72] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Zhang YL, Chen Q, Zheng L, Zhang ZW, Chen YJ, Dai YC, Tang ZP. Jianpi Qingchang Bushen decoction improves inflammatory response and metabolic bone disorder in inflammatory bowel disease-induced bone loss. World J Gastroenterol 2022; 28:1315-1328. [PMID: 35645540 PMCID: PMC9099185 DOI: 10.3748/wjg.v28.i13.1315] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 01/17/2022] [Accepted: 02/27/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Bone loss and osteoporosis are commonly described as extra-intestinal manifestations of inflammatory bowel disease (IBD). Jianpi Qingchang Bushen decoction (JQBD) is a prescription used in clinical practice. However, further studies are needed to determine whether JQBD regulates the receptor activator of nuclear factor kappa B (NF-κB) (RANK)/receptor activator of NF-κB ligand (RANKL)/ osteoprotegerin (OPG) pathways and could play a role in treating IBD-induced bone loss.
AIM To evaluate the therapeutic effect of JQBD in IBD-induced bone loss and explore the underlying mechanisms.
METHODS An IBD-induced bone loss model was constructed by feeding 12 6-to-8-wk-old interleukin-10 (IL-10)-knockout mice with piroxicam for 10 d. The mice were randomly divided into model and JQBD groups. We used wild-type mice as a control. The JQBD group was administered the JQBD suspension for 2 wk by gavage, while the control and model groups were given normal saline at the corresponding time points. All mice were killed after the intervention. The effect of JQBD on body weight, disease activity index (DAI), and colon length was analyzed. Histopathological examination, colon ultrastructure observation, and micro-computed tomographic scanning of the lumbar vertebrae were performed. The gene expression of NF-κB, tumor necrosis factor-α (TNF-α), IL-1β, IL-6, and IL-8 in the colon was evaluated by real-time polymerase chain reaction. Colon samples were assessed by Western blot for the expression of RANKL, OPG, RANK, and NF-κB proteins.
RESULTS The model group lost body weight, had a shorter colon, and showed a dramatic increase in DAI score, whereas JQBD had protective and therapeutic effects. Treatment with JQBD significantly improved inflammatory cell infiltration and reduced crypt abscess and ulcer formation. Three-dimensional imaging of the vertebral centrum in the model group revealed a lower bone mass, loose trabeculae, and “rod-shaped” changes in the structure compared to the control group and JQBD groups. The bone volume/total volume ratio and bone mineral density were significantly lower in the model group than in the control group. JQBD intervention downregulated the NF-κB, TNF-α, IL-1β, IL-6, and IL-8 mRNA expression levels. The RANKL and OPG protein levels were also improved.
CONCLUSION JQBD reduces inflammation of the colonic mucosa and inhibits activation of the RANK/ RANKL/OPG signaling pathway, thereby reducing osteoclast activation and bone resorption and improving bone metabolism.
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Affiliation(s)
- Ya-Li Zhang
- Institute of Digestive Diseases, LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Qian Chen
- Institute of Digestive Diseases, LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Lie Zheng
- Department of Gastroenterology, Traditional Chinese Medicine Hospital of Shaanxi Province, Xi’an 710003, Shaanxi Province, China
| | - Zi-Wei Zhang
- Institute of Digestive Diseases, LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Yu-Jun Chen
- Institute of Digestive Diseases, LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Yan-Cheng Dai
- Department of Gastroenterology, Shanghai Traditional Chinese Medicine-Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200082, China
| | - Zhi-Peng Tang
- Institute of Digestive Diseases, LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
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Moran MM, Wessman P, Rolfson O, Bohl DD, Kärrholm J, Keshavarzian A, Sumner DR. The risk of revision following total hip arthroplasty in patients with inflammatory bowel disease, a registry based study. PLoS One 2021; 16:e0257310. [PMID: 34735461 PMCID: PMC8568118 DOI: 10.1371/journal.pone.0257310] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 08/30/2021] [Indexed: 11/25/2022] Open
Abstract
Inflammatory bowel disease (IBD) is characterized by chronic inflammation of the intestinal tract and is associated with decreased bone mineral density. IBD patients are at higher risk of osteopenia, osteoporosis and fracture compared to non-IBD patients. The impact of IBD on the performance of orthopedic implants has not been well studied. We hypothesized that a history of IBD at the time of primary total hip arthroplasty (THA) would increase the risk of subsequent failure as assessed by revision surgery. A retrospective implant survival analysis was completed using the Swedish Hip Arthroplasty Registry and the Sweden National Patient Register. A total of 150,073 patients undergoing THA for osteoarthritis within an 18-year period were included in the study. THA patients with (n = 2,604) and without (n = 147,469) a history of IBD at the time of THA were compared with primary revision as the main endpoint and adjusted using sex, age category and comorbidity (Elixhauser scores) as covariates. We found that patients with a history of IBD had a relatively higher risk of revision surgery for septic causes while the non-IBD patients had a relatively higher risk of revision for aseptic causes (p = 0.004). Our findings suggest there may be an association between gut health and THA performance.
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Affiliation(s)
- Meghan M. Moran
- Department of Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL, United States of America
| | - Peter Wessman
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Ola Rolfson
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Daniel D. Bohl
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL, United States of America
| | - Johan Kärrholm
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Ali Keshavarzian
- Division of Digestive Diseases and Nutrition, Department of Internal Medicine, Rush Medical College, Chicago, IL, United States of America
| | - D. Rick Sumner
- Department of Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL, United States of America
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL, United States of America
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Zhou A, Wu B, Yu H, Tang Y, Liu J, Jia Y, Yang X, Xiang L. Current Understanding of Osteoimmunology in Certain Osteoimmune Diseases. Front Cell Dev Biol 2021; 9:698068. [PMID: 34485284 PMCID: PMC8416088 DOI: 10.3389/fcell.2021.698068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 07/15/2021] [Indexed: 02/05/2023] Open
Abstract
The skeletal system and immune system seem to be two independent systems. However, there in fact are extensive and multiple crosstalk between them. The concept of osteoimmunology was created to describe those interdisciplinary events, but it has been constantly updated over time. In this review, we summarize the interactions between the skeletal and immune systems in the co-development of the two systems and the progress of certain typical bone abnormalities and bone regeneration on the cellular and molecular levels according to the mainstream novel study. At the end of the review, we also highlighted the possibility of extending the research scope of osteoimmunology to other systemic diseases. In conclusion, we propose that osteoimmunology is a promising perspective to uncover the mechanism of related diseases; meanwhile, a study from the point of view of osteoimmunology may also provide innovative ideas and resolutions to achieve the balance of internal homeostasis.
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Affiliation(s)
- Anqi Zhou
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Bingfeng Wu
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hui Yu
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yufei Tang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jiayi Liu
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yinan Jia
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xiaoyu Yang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Lin Xiang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Abstract
PURPOSE OF THE REVIEW Patients with inflammatory bowel disease (IBD) have increased bone fragility, demonstrated by increased fracture risk, and often have low bone density and altered bone geometry, but the underlying pathophysiology remains poorly understood. RECENT FINDINGS Children and adolescents with IBD appear to have decreased bone formation, at diagnosis, which frequently improves with treatment of their underlying IBD. There is a growing body of evidence regarding how the immune system interacts with bone metabolism. There are likely multi-factorial etiologies that contribute to suboptimal bone accrual and subsequent lack of peak bone mass attainment in growing patients with IBD. There appears to be differential effects dependent upon IBD sub-type and bone compartment. Pediatric patients with IBD require recognition of several risk factors that may adversely impact their bone accrual. Future studies are necessary to further delineate the effects of IBD on pediatric bone health.
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Affiliation(s)
- Rebecca J Gordon
- Division of Endocrinology, Boston Children's Hospital, Harvard Medical School, 300 Longwood Avenue, Boston, MA, 02115, USA.
| | - Catherine M Gordon
- Division of Endocrinology, Boston Children's Hospital, Harvard Medical School, 300 Longwood Avenue, Boston, MA, 02115, USA
- Division of Adolescent/Young Adult Medicine, Boston Children's Hospital, Harvard Medical School, 300 Longwood Avenue, Boston, MA, 02115, USA
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Neveling DP, Dicks LMT. Probiotics: an Antibiotic Replacement Strategy for Healthy Broilers and Productive Rearing. Probiotics Antimicrob Proteins 2021; 13:1-11. [PMID: 32556932 DOI: 10.1007/s12602-020-09640-z] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Pathogens develop resistance to antibiotics at a rate much faster than the discovery of new antimicrobial compounds. Reports of multidrug-resistant bacteria isolated from broilers, and the possibility that these strains may spread diseases amongst humans, prompted many European countries to ban the inclusion of antibiotics in feed. Probiotics added to broiler feed controlled a number of bacterial infections. A combination of Enterococcus faecium, Pediococcus acidilactici, Bacillus animalis, Lactobacillus salivarius and Lactobacillus reuteri decreased the colonisation of Campylobacter jejuni and Salmonella Enteritidis in the gastro-intestinal tract (GIT) of broilers, whereas Bacillus subtilis improved feed conversion, intestinal morphology, stimulated the immune system and inhibited the colonisation of Campylobacter jejuni, Escherichia coli and Salmonella Minnesota. Lactobacillus salivarius and Pediococcus parvulus improved weight gain, bone characteristics, intestinal morphology and immune response, and decreased the colonisation of S. Enteritidis. Lactobacillus crispatus, L. salivarius, Lactobacillus gallinarum, Lactobacillus johnsonii, Enterococcus faecalis and Bacillus amyloliquefaciens decreased the Salmonella count and led to an increase in lysozyme and T lymphocytes. Probiotics may also improve feed digestion through production of phytases, lipases, amylases and proteases or stimulate the GIT to secrete digestive enzymes. Some strains increase the nutritional value of feed by production of vitamins, exopolysaccharides and antioxidants. Bacteriocins, if produced, regulate pathogen numbers in the GIT and keep pro-inflammatory and anti-inflammatory reactions in balance.
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Affiliation(s)
- Deon P Neveling
- Department of Microbiology, Stellenbosch University, Private Bag X1, Matieland, Stellenbosch, 7602, South Africa
| | - Leon M T Dicks
- Department of Microbiology, Stellenbosch University, Private Bag X1, Matieland, Stellenbosch, 7602, South Africa.
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10
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Effects of vitamin D supplementation on blood markers in ulcerative colitis patients: a systematic review and meta-analysis. Eur J Nutr 2021; 61:23-35. [PMID: 34075433 DOI: 10.1007/s00394-021-02603-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 05/28/2021] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Observational studies have shown that vitamin D levels are inversely related to ulcerative colitis activity, yet evidence from population interventions remains inconsistent. We conducted a systematic review and meta-analysis of randomized-controlled trials to clarify the effect of vitamin D on blood markers in patients with ulcerative colitis. METHODS The PubMed, Cochrane Library, Embase, CNKI, VIP, and Wanfang databases were searched for studies published before June 2020. Information was collected regarding serum vitamin D levels, erythrocyte sedimentation rate (ESR), and C-reactive protein (CRP), and Ca (calcium), and parathyroid hormone (PTH), and ulcerative colitis disease activity index (UCDAI) research data. RESULTS Seven studies (n = 539) were included in the meta-analysis. Vitamin D supplementation resulted in significant improvements in the serum vitamin D levels (standardized mean difference (SMD) = 0.69, 95% CI (0.36, 1.03), P < 0.001), ESR (weighted mean difference (WMD) = - 1.10, 95% CI (- 1.97, - 0.24), P = 0.01), CRP (SMD = - 0.43, 95% CI (- 0.67, - 0.20), P = 0.0003), and Ca (SMD = 0.92, 95% CI (0.09, 1.74), P = 0.03) but not in other outcomes. According to subgroup analysis, supplementation with vitamin D at a dose of ≥ 300,000 IU/day can improve serum vitamin D levels. Supplementation with a sufficient dose of vitamin D in a short period of time can also improve serum vitamin D levels. According to GRADE method evaluation, the evidence quality was classified as low for the Serum Vitamin D Level and ESR, and very low for the CRP, PTH, Ca, and UCDAI. CONCLUSIONS Compared with placebo control interventions, vitamin D supplementation seemed to be an effective intervention for patients with ulcerative colitis. Different doses of vitamin D and durations of intervention produce different effects. However, due to the limitation of the quality of the included studies, the above conclusions still need to be verified by more high-quality studies and weak clinical recommendations.
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Levy-Shraga Y, Megnazi O, Modan-Moses D, Tripto-Shkolnik L, Gruber N, Haberman Y, Shouval DS, Weiss B. Trabecular Bone Score in Children and Adolescents With Inflammatory Bowel Diseases. J Clin Densitom 2021; 24:243-251. [PMID: 33189561 DOI: 10.1016/j.jocd.2020.10.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 10/18/2020] [Accepted: 10/20/2020] [Indexed: 01/08/2023]
Abstract
INTRODUCTION Trabecular bone score (TBS) is a textural index that evaluates bone microarchitecture of the lumbar spine. Our aim was to assess TBS in children with inflammatory bowel diseases and to evaluate correlations with clinical, laboratory and densitometric variables. METHODS A retrospective study of TBS and areal bone mineral density measurements by dual-energy X-ray absorptiometry (DXA) of children with either Crohn's disease (CD) or ulcerative colitis (UC). Bone mineral apparent density was calculated for size adjustment. TBS Z-score for each child were calculated based on data from a healthy population of similar age and gender distribution. Variables significantly associated with TBS were included in stepwise linear regression models to examine independent predictors of TBS. RESULTS Fifty patients (age at DXA scan 13.8 ± 3.0 years, 29 males) were included. No significant differences were observed between the patients with CD and UC, in age at diagnosis, age at DXA scan and disease duration. The mean TBS of patients with CD (n = 35) was lower than of patients with UC (n = 15): 1.340 ± 0.080 vs 1.395 ± 0.092, p = 0.040. The mean TBS Z-score of patients with CD, -0.443 ± 0.788, was significantly lower than expected in healthy children (p = 0.002), while the mean TBS Z-score of patients with UC, 0.231 ± 0.685, was similar to that of healthy children (p = 0.212). In the stepwise linear regression analysis, BMI Z-score at diagnosis, phosphorus level at diagnosis and age at the time of the DXA scan were significant independent predictors of TBS (r² = 0.604; β = 0.037, 95% confidence interval (CI) for β 0.022-0.051, p < 0.001; β = 0.045, 95% CI: 0.017-0.073, p = 0.002; and β = 0.031, 95% CI: 0.005-0.021, p < 0.002, respectively). CONCLUSIONS TBS is significantly reduced in pediatric patients with CD but not in patients with UC. This finding likely reflects the effect of CD on bone microarchitecture.
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Affiliation(s)
- Yael Levy-Shraga
- Pediatric Endocrinology and Diabetes Unit, The Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel-Hashomer, Israel; The Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.
| | - Ophir Megnazi
- The Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Dalit Modan-Moses
- Pediatric Endocrinology and Diabetes Unit, The Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel-Hashomer, Israel; The Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Liana Tripto-Shkolnik
- The Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Division of Endocrinology, Diabetes and Metabolism, Sheba Medical Center, Tel-Hashomer, Israel
| | - Noah Gruber
- Pediatric Endocrinology and Diabetes Unit, The Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel-Hashomer, Israel; The Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Yael Haberman
- The Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Division of Pediatric Gastroenterology and Nutrition, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer, Israel
| | - Dror S Shouval
- The Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Division of Pediatric Gastroenterology and Nutrition, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer, Israel
| | - Batia Weiss
- The Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Division of Pediatric Gastroenterology and Nutrition, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer, Israel
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12
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Hossain SF, Huang M, Ono N, Morita A, Kanaya S, Altaf-Ul-Amin M. Development of a biomarker database toward performing disease classification and finding disease interrelations. DATABASE-THE JOURNAL OF BIOLOGICAL DATABASES AND CURATION 2021; 2021:6168336. [PMID: 33705530 PMCID: PMC7951048 DOI: 10.1093/database/baab011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 02/19/2021] [Accepted: 02/25/2021] [Indexed: 12/11/2022]
Abstract
A biomarker is a measurable indicator of a disease or abnormal state of a body that plays an important role in disease diagnosis, prognosis and treatment. The biomarker has become a significant topic due to its versatile usage in the medical field and in rapid detection of the presence or severity of some diseases. The volume of biomarker data is rapidly increasing and the identified data are scattered. To provide comprehensive information, the explosively growing data need to be recorded in a single platform. There is no open-source freely available comprehensive online biomarker database. To fulfill this purpose, we have developed a human biomarker database as part of the KNApSAcK family databases which contain a vast quantity of information on the relationships between biomarkers and diseases. We have classified the diseases into 18 disease classes, mostly according to the National Center for Biotechnology Information definitions. Apart from this database development, we also have performed disease classification by separately using protein and metabolite biomarkers based on the network clustering algorithm DPClusO and hierarchical clustering. Finally, we reached a conclusion about the relationships among the disease classes. The human biomarker database can be accessed online and the inter-disease relationships may be helpful in understanding the molecular mechanisms of diseases. To our knowledge, this is one of the first approaches to classify diseases based on biomarkers. Database URL: http://www.knapsackfamily.com/Biomarker/top.php.
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Affiliation(s)
- Shaikh Farhad Hossain
- Computational Systems Biology Lab, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), 8916-5, Takayama, Ikoma, Nara 630-0192, Japan
| | - Ming Huang
- Computational Systems Biology Lab, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), 8916-5, Takayama, Ikoma, Nara 630-0192, Japan
| | - Naoaki Ono
- Computational Systems Biology Lab, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), 8916-5, Takayama, Ikoma, Nara 630-0192, Japan
| | - Aki Morita
- Computational Systems Biology Lab, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), 8916-5, Takayama, Ikoma, Nara 630-0192, Japan
| | - Shigehiko Kanaya
- Computational Systems Biology Lab, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), 8916-5, Takayama, Ikoma, Nara 630-0192, Japan
| | - Md Altaf-Ul-Amin
- Computational Systems Biology Lab, Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), 8916-5, Takayama, Ikoma, Nara 630-0192, Japan
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13
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Ratajczak AE, Rychter AM, Zawada A, Dobrowolska A, Krela-Kaźmierczak I. Lactose intolerance in patients with inflammatory bowel diseases and dietary management in prevention of osteoporosis. Nutrition 2020; 82:111043. [PMID: 33316755 DOI: 10.1016/j.nut.2020.111043] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 08/13/2020] [Accepted: 10/15/2020] [Indexed: 02/06/2023]
Abstract
Lactose intolerance affects 33% to 75% of the world population and may be associated with various genetic factors. Lactose in the diet can be found in milk and dairy products, which simultaneously constitute the primary sources of calcium. Gut microbiota also influences lactose tolerance. Patients with lactose intolerance often stop consuming milk and dairy products, which may lead to calcium and vitamin deficiency and osteoporosis. Insufficient production of lactase also occurs in patients with diseases of the gastrointestinal tract, such as inflammatory bowel diseases. Moreover, Crohn's disease and ulcerative colitis are risk factors for osteoporosis, and the intake of the proper amount of calcium is an essential element in preventing the decrease of bone mineral density. Diet may prevent the development of osteoporosis, thus, educating patients regarding proper diet should constitute a part of the treatment and prevention process. Patients should consume low-lactose, or lactose-free milk and bacterially fermented dairy products. Additionally, plant milk supplemented by calcium and vitamin D, mineral water with calcium, and certain vegetables also may be good sources of calcium.
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Affiliation(s)
- Alicja Ewa Ratajczak
- Department of Gastroenterology, Dietetics and Internal Diseases, Poznan University of Medical Sciences, Poland.
| | - Anna Maria Rychter
- Department of Gastroenterology, Dietetics and Internal Diseases, Poznan University of Medical Sciences, Poland
| | - Agnieszka Zawada
- Department of Gastroenterology, Dietetics and Internal Diseases, Poznan University of Medical Sciences, Poland
| | - Agnieszka Dobrowolska
- Department of Gastroenterology, Dietetics and Internal Diseases, Poznan University of Medical Sciences, Poland
| | - Iwona Krela-Kaźmierczak
- Department of Gastroenterology, Dietetics and Internal Diseases, Poznan University of Medical Sciences, Poland
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14
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Nesterova I, Mitropanova M, Chudilova G, Lomtatidze L. Osteocalcin and regulatory cytokine imbalance in children with congenital cleft lip and palate. Immunol Med 2020; 43:130-134. [PMID: 32511082 DOI: 10.1080/25785826.2020.1775465] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
The aim of the work was a comprehensive assessment of the cytokine system and peripheral blood osteocalcin with the establishment of features of their interconnections in children with congenital cleft lip and palate (CCLP) in comparison with corresponding controls at different age periods. Levels of IL17, IL4, IL6, IL1β, IFNγ and osteocalcin were analyzed by enzyme immunoassay in the peripheral blood of 80 children (0-12 months, 1-3 years, 4-9 years, 10-15 years) with CCLP and age-appropriate control of healthy individuals (40 people). An analysis of the obtained data shows that in children with CCLP we revealed significant differences between pro-inflammatory (IL1β, IL6, IL17), regulatory (IFNγ), anti-inflammatory (IL4) cytokines and osteocalcin compared with controls. Differences were found in the content of IL17, IFNγ, IL4 and osteocalcin in healthy children and in children with CCLP in postnatal ontogenesis. Cytokine deregulation of immunosteogenesis in CCLP, leading to a significant deficit of osteocalcin in the first year of life due to imbalance of the cytokine profile: discordant IL17, IFNγ and IL4 were detected. Obtained data are undoubtedly important in the future for developing new strategies for targeted therapy aimed at normalizing osteocalcin levels at different age periods in children with CCLP.
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Affiliation(s)
- Irina Nesterova
- Central Research Laboratory, Kuban State Medical University, Krasnodar, Russia.,Department of Allergology and Immunology of the Medical Institute, RUDN University, Moscow, Russia
| | - Marina Mitropanova
- Department of Pediatric Dentistry, Orthodontics and Dentofacial Surgery, Kuban State Medical University, Krasnodar, Russia
| | - Galina Chudilova
- Central Research Laboratory, Kuban State Medical University, Krasnodar, Russia
| | - Lyudmila Lomtatidze
- Central Research Laboratory, Kuban State Medical University, Krasnodar, Russia
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15
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Levy‐Shraga Y, Shenkar A, Modan‐Moses D, Assa A, Haberman Y, Shouval D, Guz‐Mark A, Lahad A, Weiss B. Longitudinal changes in bone mineral density in children with inflammatory bowel diseases. Acta Paediatr 2020; 109:1026-1032. [PMID: 31594031 DOI: 10.1111/apa.15046] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 08/22/2019] [Accepted: 10/04/2019] [Indexed: 12/30/2022]
Abstract
AIM Children with inflammatory bowel disease (IBD) are prone to low bone mineral density (BMD). Our aim was to assess longitudinal changes in BMD in this population. METHODS A retrospective longitudinal study of children with IBD, treated at two tertiary centres in Israel, who underwent two BMD measurements by dual-energy X-ray absorptiometry (DXA). Changes in lumbar spine BMD (∆L1-4 z-scores) were examined for correlations with clinical characteristics. RESULTS The cohort included 41 patients (age at diagnosis 12.1 ± 3.5 years, 23 females).The mean interval between the scans was 3.4 ± 2.0 years. There was a trend towards improvement in L1-4 z-scores (-1.64 ± 1.02 vs -1.45 ± 0.83, P = .12). ∆L1-4 z-scores correlated positively with ∆weight-standard deviation scores (SDS), ∆height-SDS and ∆BMI-SDS, and with age at the second scan (R = .55, P < .01; R = .42, P < .01; R = .42, P = .01; R = .35, P = .02, respectively); and negatively with L1-4 z-scores at the first scan (R = -.63, P < .01). Stepwise linear regression analysis identified the first scan L1-4 z-scores and ∆weight-SDS as independent predictors of ∆L1-4 z-scores. An L1-4 z-score ≤-2 at the first DXA scan was associated with significant improvement at the second scan. CONCLUSION Improvement in BMD was more pronounced in children who gained weight or whose BMD was low at the first scan.
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Affiliation(s)
- Yael Levy‐Shraga
- Pediatric Endocrinology and Diabetes Unit The Edmond and Lily Safra Children's Hospital Sheba Medical Center Tel‐Hashomer Israel
- The Sackler Faculty of Medicine Tel‐Aviv University Tel‐Aviv Israel
| | - Anatoly Shenkar
- The Sackler Faculty of Medicine Tel‐Aviv University Tel‐Aviv Israel
| | - Dalit Modan‐Moses
- Pediatric Endocrinology and Diabetes Unit The Edmond and Lily Safra Children's Hospital Sheba Medical Center Tel‐Hashomer Israel
- The Sackler Faculty of Medicine Tel‐Aviv University Tel‐Aviv Israel
| | - Amit Assa
- The Sackler Faculty of Medicine Tel‐Aviv University Tel‐Aviv Israel
- Institute of Gastroenterology, Nutrition and Liver Disease Schneider Children's Medical Center Petah‐Tikva Israel
| | - Yael Haberman
- The Sackler Faculty of Medicine Tel‐Aviv University Tel‐Aviv Israel
- Division of Pediatric Gastroenterology and Nutrition Edmond and Lily Safra Children's Hospital Sheba Medical Center Tel Hashomer Israel
| | - Dror Shouval
- The Sackler Faculty of Medicine Tel‐Aviv University Tel‐Aviv Israel
- Division of Pediatric Gastroenterology and Nutrition Edmond and Lily Safra Children's Hospital Sheba Medical Center Tel Hashomer Israel
| | - Anat Guz‐Mark
- The Sackler Faculty of Medicine Tel‐Aviv University Tel‐Aviv Israel
- Institute of Gastroenterology, Nutrition and Liver Disease Schneider Children's Medical Center Petah‐Tikva Israel
| | - Avishay Lahad
- Division of Pediatric Gastroenterology and Nutrition Edmond and Lily Safra Children's Hospital Sheba Medical Center Tel Hashomer Israel
| | - Batia Weiss
- The Sackler Faculty of Medicine Tel‐Aviv University Tel‐Aviv Israel
- Division of Pediatric Gastroenterology and Nutrition Edmond and Lily Safra Children's Hospital Sheba Medical Center Tel Hashomer Israel
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16
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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: 101] [Impact Index Per Article: 25.3] [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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17
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Nesterova IV, Mitropanova MN, Chudilova GA, Lomtatidze LV, Gaivoronskaya TV. [The impact of disbalance of regulatory cytokines and osteocalcin on osteogenesis in children with congenital cleft lip and palate in postnatal ontogenesis]. STOMATOLOGIIA 2020; 99:77-81. [PMID: 32125307 DOI: 10.17116/stomat20209901177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The aim of the work was a comprehensive assessment of the system of cytokines and peripheral blood osteocalcin with the establishment of features of their interconnections in children with congenital cleft lip and palate (CCLP) in comparison with the corresponding controls at different age periods. In the peripheral blood of 80 children (0-12 months, 1-3 years, 4-9 years, 10-15 years) with osteocalcin and IL17, IL4, congenital cleft lip and palate and age-appropriate control of healthy individuals (40 people) IL6, IL1β, IFNγ by enzyme immunoassay. An analysis of the data obtained with CCLP revealed significant differences in the dynamics of the relationship between pro-inflammatory (IL1β, IL6, IL17), regulatory (IFNγ), anti-inflammatory (IL4) cytokines and osteocalcin compared with controls. The patterns of changes and effects of IL17, IFNγ, IL4 and osteocalcin in healthy children and in children with congenital cleft lip and palate in postnatal ontogenesis were established. Cytokine dysregulation of immunosteogenesis in CCLP, leading to a significant deficit of osteocalcin in the first year of life due to an imbalance of the cytokine profile: discordant IL17, IFNγ and IL4 were detected. Thus, the data obtained are undoubtedly important in the future for developing new strategies for targeted therapy aimed at normalizing osteocalcin levels at different age periods in children with congenital cleft lip and palate.
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Affiliation(s)
- I V Nesterova
- Kuban State Medical University of Ministry of Health Development of Russia, Krasnodar, Russia; Russian Peoples' Friendship University of Ministry of Education and Science of Russia, Moscow, Russia
| | - M N Mitropanova
- Kuban State Medical University of Ministry of Health Development of Russia, Krasnodar, Russia
| | - G A Chudilova
- Kuban State Medical University of Ministry of Health Development of Russia, Krasnodar, Russia
| | - L V Lomtatidze
- Kuban State Medical University of Ministry of Health Development of Russia, Krasnodar, Russia
| | - T V Gaivoronskaya
- Kuban State Medical University of Ministry of Health Development of Russia, Krasnodar, Russia
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18
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Olmedo-Martín RV, González-Molero I, Olveira G, Amo-Trillo V, Jiménez-Pérez M. Vitamin D in Inflammatory Bowel Disease: Biological, Clinical and Therapeutic Aspects. Curr Drug Metab 2019; 20:390-398. [PMID: 31109269 DOI: 10.2174/1389200220666190520112003] [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: 01/17/2019] [Revised: 04/13/2019] [Accepted: 04/25/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND Vitamin D has an immunoregulatory action in Inflammatory Bowel Disease (IBD) as well as other immune-mediated disorders. Its influence on intestinal permeability, innate and adaptive immunity, and the composition and diversity of the microbiota contribute to the maintenance of intestinal homeostasis. Patients with IBD have a greater prevalence of vitamin D deficiency than the general population, and a possible association between this deficit and a worse course of the disease. However, intervention studies in patients with IBD have proved inconclusive. OBJECTIVE To review all the evidence concerning the role of vitamin D as an important factor in the pathophysiology of IBD, review the associations found between its deficiency and the prognosis of the disease, and draw conclusions for the practical application from the main intervention studies undertaken. METHODS Structured search and review of basic, epidemiological, clinical and intervention studies evaluating the influence of vitamin D in IBD, following the basic principles of scientific data. RESULTS Vitamin D deficiency is associated with disease activity, quality of life, the consumption of social and healthcare resources, and the durability of anti-TNFα biological treatment. Determination of new metabolites of vitamin D, measurement of its absorption capacity and questionnaires about sun exposure could help identify groups of IBD patients with a special risk of vitamin D deficiency. CONCLUSION Well-designed intervention studies are needed in IBD, with probably higher objective plasma doses of vitamin D to establish its efficacy as a therapeutic agent with immunomodulatory properties. Meanwhile, vitamin D deficiency should be screened for and corrected in affected patients in order to achieve adequate bone and phosphocalcic metabolism.
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Affiliation(s)
- Raúl Vicente Olmedo-Martín
- Clinical Management Unit of Digestive Diseases, Regional University Hospital of Malaga, Malaga, Spain; Faculty of Medicine, University of Malaga, Malaga, Spain.,Institute of Biomedical Research in Malaga (IBIMA), Malaga, Spain
| | - Inmaculada González-Molero
- Clinical Management Unit of Endocrinology and Nutrition, Regional University Hospital of Malaga; Institute of Biomedical Research in Malaga (IBIMA), Malaga, Spain; Faculty of Medicine, University of Malaga; CIBERDEM, Malaga, Spain
| | - Gabriel Olveira
- Clinical Management Unit of Endocrinology and Nutrition, Regional University Hospital of Malaga; Institute of Biomedical Research in Malaga (IBIMA), Malaga, Spain; Faculty of Medicine, University of Malaga; CIBERDEM, Malaga, Spain
| | - Víctor Amo-Trillo
- Clinical Management Unit of Digestive Diseases, Regional University Hospital of Malaga, Malaga, Spain; Faculty of Medicine, University of Malaga, Malaga, Spain.,Institute of Biomedical Research in Malaga (IBIMA), Malaga, Spain
| | - Miguel Jiménez-Pérez
- Clinical Management Unit of Digestive Diseases, Regional University Hospital of Malaga, Malaga, Spain; Faculty of Medicine, University of Malaga, Malaga, Spain.,Institute of Biomedical Research in Malaga (IBIMA), Malaga, Spain
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19
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Valero C, García MJ. Bone Metabolism in Inflammatory Bowel Disease and Celiac Disease. Clin Rev Bone Miner Metab 2019. [DOI: 10.1007/s12018-019-09269-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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20
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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: 59] [Impact Index Per Article: 11.8] [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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21
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Lavoie B, Roberts JA, Haag MM, Spohn SN, Margolis KG, Sharkey KA, Lian JB, Mawe GM. Gut-derived serotonin contributes to bone deficits in colitis. Pharmacol Res 2018; 140:75-84. [PMID: 30030171 PMCID: PMC6336528 DOI: 10.1016/j.phrs.2018.07.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 06/14/2018] [Accepted: 07/16/2018] [Indexed: 02/07/2023]
Abstract
Osteoporosis and bone fractures occur at higher frequency in patients with inflammatory bowel disease (IBD), and decreased bone mass is observed in animal models of colitis. Another consistent feature of colitis is increased serotonin (5-HT) availability in the intestinal mucosa. Since gut-derived 5-HT can decrease bone mass, via activation of 5-HT1B receptors on pre-osteoblasts, we tested the hypothesis that 5-HT contributes to bone loss in colitis. Colitis was chronically induced in mice by adding dextran sodium sulfate (DSS) to their drinking water for 21 days. At day 21, circulating 5-HT levels were elevated in DSS-inflamed mice. Micro-computed tomography of femurs showed a decrease in trabecular bone volume fraction, formation, and surface area, due largely to decreased trabecular numbers in DSS-treated mice. The colitis-induced loss of trabecular bone was significantly suppressed in mice treated with the 5-HT synthesis inhibitor, p-chloro-DL-phenylalanine (PCPA; 300 mg/kg/day IP daily), and in mice treated with the 5-HT1B receptor antagonist GR55562 (1 mg/Kg/day SC daily). The 5-HT reuptake transporter (SERT) is critical for moving 5-HT from the interstitial space into enterocytes and from serum into platelets. Mice lacking SERT exhibited significant deficits in trabecular bone mass that are similar to those observed in DSS-inflamed mice, and these deficits were not extensively worsened by DSS-induced colitis in the SERT-/- mice. Taken together, findings from both the DSS and SERT-/- mouse models support a contributing role for 5-HT as a significant factor in bone loss induced by colitis.
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Affiliation(s)
- B Lavoie
- Department of Neurological Sciences, The University of Vermont, Burlington, VT, USA.
| | - J A Roberts
- Department of Neurological Sciences, The University of Vermont, Burlington, VT, USA
| | - M M Haag
- Department of Neurological Sciences, The University of Vermont, Burlington, VT, USA
| | - S N Spohn
- Department of Neurological Sciences, The University of Vermont, Burlington, VT, USA
| | - K G Margolis
- Department of Pediatrics, Columbia University, New York, NY, USA
| | - K A Sharkey
- Department of Physiology and Pharmacology, University of Calgary, Calgary, AB, Canada
| | - J B Lian
- Department of Biochemistry, The University of Vermont, Burlington, VT, USA
| | - G M Mawe
- Department of Neurological Sciences, The University of Vermont, Burlington, VT, USA
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22
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Butscheidt S, Delsmann A, Rolvien T, Barvencik F, Al-Bughaili M, Mundlos S, Schinke T, Amling M, Kornak U, Oheim R. Mutational analysis uncovers monogenic bone disorders in women with pregnancy-associated osteoporosis: three novel mutations in LRP5, COL1A1, and COL1A2. Osteoporos Int 2018; 29:1643-1651. [PMID: 29594386 DOI: 10.1007/s00198-018-4499-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 03/20/2018] [Indexed: 12/14/2022]
Abstract
UNLABELLED Pregnancy was found to be a skeletal risk factor promoting the initial onset of previously unrecognized monogenic bone disorders, thus explaining a proportion of cases with pregnancy-associated osteoporosis. Therapeutic measures should focus in particular on the normalization of the disturbed calcium homeostasis in order to enable the partial skeletal recovery. INTRODUCTION Pregnancy-associated osteoporosis (PAO) is a rare skeletal condition, which is characterized by a reduction in bone mineral density (BMD) in the course of pregnancy and lactation. Typical symptoms include vertebral compression fractures and transient osteoporosis of the hip. Since the etiology is not well understood, this prospective study was conducted in order to elucidate the relevance of pathogenic gene variants for the development of PAO. METHODS Seven consecutive cases with the diagnosis of PAO underwent a skeletal assessment (blood tests, DXA, HR-pQCT) and a comprehensive genetic analysis using a custom-designed gene panel. RESULTS All cases showed a reduced BMD (DXA T-score, lumbar spine - 3.2 ± 1.0; left femur - 2.2 ± 0.5; right femur - 1.9 ± 0.5), while the spine was affected more severely (p < 0.05). The trabecular and cortical thickness was overall reduced in HR-pQCT, while the trabecular number showed no alterations in most cases. The genetic analysis revealed three novel mutations in LRP5, COL1A1, and COL1A2. CONCLUSION Our data show that previously unrecognized monogenic bone disorders play an important role in PAO. Pregnancy should be considered a skeletal risk factor, which can promote the initial clinical onset of such skeletal disorders. The underlying increased calcium demand is essential in terms of prophylactic and therapeutic measures, which are especially required in individuals with a genetically determined low bone mass. The implementation of this knowledge in clinical practice can enable the partial recovery of the skeleton. Consistent genetic studies are needed to analyze the frequency of pathogenic variants in women with PAO.
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Affiliation(s)
- S Butscheidt
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestr. 59, 22529, Hamburg, Germany
| | - A Delsmann
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestr. 59, 22529, Hamburg, Germany
| | - T Rolvien
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestr. 59, 22529, Hamburg, Germany
- Department of Orthopedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - F Barvencik
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestr. 59, 22529, Hamburg, Germany
| | - M Al-Bughaili
- Institute of Medical Genetics and Human Genetics, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
- Berlin-Brandenburg Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Max Planck Institute for Molecular Genetics, FG Development and Disease, Berlin, Germany
| | - S Mundlos
- Institute of Medical Genetics and Human Genetics, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
- Berlin-Brandenburg Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Max Planck Institute for Molecular Genetics, FG Development and Disease, Berlin, Germany
| | - T Schinke
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestr. 59, 22529, Hamburg, Germany
| | - M Amling
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestr. 59, 22529, Hamburg, Germany
| | - U Kornak
- Institute of Medical Genetics and Human Genetics, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
- Berlin-Brandenburg Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Max Planck Institute for Molecular Genetics, FG Development and Disease, Berlin, Germany
| | - R Oheim
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestr. 59, 22529, Hamburg, Germany.
- National Bone Board, Martin Zeitz Center for Rare Diseases, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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23
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Tang M, Tian L, Luo G, Yu X. Interferon-Gamma-Mediated Osteoimmunology. Front Immunol 2018; 9:1508. [PMID: 30008722 PMCID: PMC6033972 DOI: 10.3389/fimmu.2018.01508] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 06/18/2018] [Indexed: 02/05/2023] Open
Abstract
Osteoimmunology is the interdiscipline that focuses on the relationship between the skeletal and immune systems. They are interconnected by shared signal pathways and cytokines. Interferon-gamma (IFN-γ) plays important roles in immune responses and bone metabolism. IFN-γ enhances macrophage activation and antigen presentation. It regulates antiviral and antibacterial immunity as well as signal transduction. IFN-γ can promote osteoblast differentiation and inhibit bone marrow adipocyte formation. IFN-γ plays dual role in osteoclasts depending on its stage. Furthermore, IFN-γ is an important pathogenetic factor in some immune-mediated bone diseases including rheumatoid arthritis, postmenopausal osteoporosis, and acquired immunodeficiency syndrome. This review will discuss the contradictory findings of IFN-γ in osteoimmunology and its clinical application potential.
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Affiliation(s)
- Mengjia Tang
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology and Metabolism, National Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Li Tian
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology and Metabolism, National Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Guojing Luo
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology and Metabolism, National Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xijie Yu
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology and Metabolism, National Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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24
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McCabe LR, Parameswaran N. Advances in Probiotic Regulation of Bone and Mineral Metabolism. Calcif Tissue Int 2018; 102:480-488. [PMID: 29453726 PMCID: PMC5849527 DOI: 10.1007/s00223-018-0403-7] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 02/08/2018] [Indexed: 12/19/2022]
Abstract
Probiotics have been consumed by humans for thousands of years because they are beneficial for long-term storage of foods and promote the health of their host. Ingested probiotics reside in the gastrointestinal tract where they have many effects including modifying the microbiota composition, intestinal barrier function, and the immune system which result in systemic benefits to the host, including bone health. Probiotics benefit bone growth, density, and structure under conditions of dysbiosis, intestinal permeability, and inflammation (recognized mediators of bone loss and osteoporosis). It is likely that multiple mechanisms are involved in mediating probiotic signals from the gut to the bone. Studies indicate a role for the microbiota (composition and activity), intestinal barrier function, and immune cells in the signaling process. These mechanisms are not mutually exclusive, but rather, may synergize to provide benefits to the skeletal system of the host and serve as a starting point for investigation. Given that probiotics hold great promise for supporting bone health and are generally regarded as safe, future studies identifying mechanisms are warranted.
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Affiliation(s)
- Laura R McCabe
- Department of Physiology, Michigan State University, East Lansing, MI, USA.
- Department of Radiology, Michigan State University, East Lansing, MI, USA.
- Biomedical Imaging Research Center, Michigan State University, East Lansing, MI, USA.
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