1
|
Niu X, Wang C, Li H, Chen W. Role of OPG/RANKL/RANK/TLR4 signaling pathway in sepsis-associated acute kidney injury. BMC Nephrol 2024; 25:205. [PMID: 38910256 PMCID: PMC11194911 DOI: 10.1186/s12882-024-03648-1] [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: 01/18/2024] [Accepted: 06/19/2024] [Indexed: 06/25/2024] Open
Abstract
BACKGROUND Sepsis-associated acute kidney injury (SA-AKI) has high mortality rates. The osteoprotegerin (OPG)/receptor activator of nuclear factor-κB ligand (RANKL)/receptor activator of nuclear factor-κB (RANK)/Toll-like receptor 4 (TLR4) pathway and its potential role in SA-AKI pathogenesis remain to be fully understood. Herein, we addressed this issue using mouse models. METHODS An SA-AKI mouse model was established using the cecal ligation and puncture method (CLP). Mice were grouped into sham, CLP model, CLP + recombinant RANKL, and CLP + anti-RANKL groups. Serum creatinine (Scr) and blood urea nitrogen (BUN) levels were measured to assess kidney function. ELISA was used to detect serum IL-1β, TNF-α, and IL-6 levels. Real-time quantitative PCR and Western blot were used to detect the mRNA and protein expression levels of OPG, RANKL, RANK, and TLR4 in kidney tissues. HE staining was performed to evaluate the pathological changes. RESULTS The CLP model group showed higher levels of Scr and BUN, indicating impaired kidney function in SA-AKI, compared to the sham group. Treatment with recombinant RANKL in the CLP + recombinant RANKL group reduced Scr and BUN levels, while anti-RANKL treatment in the CLP + anti-RANKL group elevated their levels. Moreover, the CLP model group had significantly increased IL-1β, TNF-α, and IL-6 than the sham group, indicating elevated inflammation in SA-AKI. The CLP + recombinant RANKL group demonstrated decreased cytokine levels, whereas the CLP + anti-RANKL group showed an increase. Additionally, the histopathological evaluation revealed distinct kidney tissue damage in the CLP model group. Recombinant RANKL treatment reduced this damage, while anti-RANKL treatment exacerbated it. Mechanically, the mRNA and protein expression of RANKL were significantly decreased, while those of OPG, RANK, and TLR4 were significantly increased in the CLP model group and the CLP + anti-RANKL group. Interestingly, treatment with recombinant RANKL reversed these changes, as evidenced by significantly increased RANKL but decreased OPG, RANK, and TLR4. CONCLUSION The OPG/RANKL/RANK/TLR4 pathway is involved in SA-AKI pathogenesis. Recombinant RANKL treatment attenuates the inflammatory response and kidney tissue damage in SA-AKI, possibly via regulating this pathway. This pathway shows promise as a therapeutic target for SA-AKI.
Collapse
Affiliation(s)
- Xinrong Niu
- Department of Critical Care Medicine, Xinjiang Uyghur Autonomous Region People's Hospital, No. 91 Tianchi Road, Tianshan District, Urumqi, 830001, P.R. China.
| | - Caihong Wang
- Department of Critical Care Medicine, Xinjiang Uyghur Autonomous Region People's Hospital, No. 91 Tianchi Road, Tianshan District, Urumqi, 830001, P.R. China
| | - Hui Li
- Department of Critical Care Medicine, Xinjiang Uyghur Autonomous Region People's Hospital, No. 91 Tianchi Road, Tianshan District, Urumqi, 830001, P.R. China
| | - Weilin Chen
- Department of Critical Care Medicine, Xinjiang Uyghur Autonomous Region People's Hospital, No. 91 Tianchi Road, Tianshan District, Urumqi, 830001, P.R. China
| |
Collapse
|
2
|
Angkeow J, Rothman A, Chaaban L, Paul N, Melia J. Systematic Review: Outcome Prediction in Acute Severe Ulcerative Colitis. GASTRO HEP ADVANCES 2023; 3:260-270. [PMID: 39129959 PMCID: PMC11307437 DOI: 10.1016/j.gastha.2023.11.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 11/06/2023] [Indexed: 08/13/2024]
Abstract
Background and Aims Approximately 1 in 4 patients with ulcerative colitis experiences a severe exacerbation of disease requiring hospitalization, termed acute severe ulcerative colitis (ASUC). These episodes pose a major burden on patients with ulcerative colitis and early prediction of their outcomes based on clinical data is crucial to optimize therapy. Methods A systematic review was performed using Embase and Medline for articles between 2000 and 2023. Studies obtained from the databases were uploaded on Covidence for screening by 2 independent reviewers. Quality appraisal for each study was done using the Critical Appraisals Skills Program depending on study design. Results A total of 48 eligible studies were included in the review. The key predictors of ASUC identified in this review included clinical, endoscopic, and radiographic biomarkers, which were summarized. The main outcomes assessed in the studies were intravenous corticosteroid failure, need for rescue therapy, and need for colectomy. Score-based predictions and some novel markers were also included in the results. Conclusion Utilization of evidence-based predictors of outcome in ASUC could serve as a powerful tool in customizing therapeutic measures and a step forward toward personalized patient care. Despite promising candidates, there remains a significant opportunity to identify and test additional clinical and laboratory-based predictors, especially early in the hospitalization and as the clinical practice and medical therapies evolve.
Collapse
Affiliation(s)
- Julia Angkeow
- Division of Gastroenterology and Hepatology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Alissa Rothman
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Lara Chaaban
- Division of Gastroenterology and Hepatology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Nicole Paul
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Joanna Melia
- Division of Gastroenterology and Hepatology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| |
Collapse
|
3
|
Volkers AG, Appleton L, Gearry RB, Frampton CM, de Voogd FAE, Peters van Ton AM, Leach ST, Lemberg DA, Day AS. Fecal Calprotectin, Chitinase 3-Like-1, S100A12 and Osteoprotegerin as Markers of Disease Activity in Children with Crohn’s Disease. GASTROINTESTINAL DISORDERS 2022; 4:180-189. [DOI: 10.3390/gidisord4030017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/10/2023] Open
Abstract
Fecal calprotectin (FC), chitinase 3-like-1 protein (CHI3L1), S100A12 and osteoprotegerin (OPG) are biomarkers of intestinal inflammation. This cross-sectional study aimed to evaluate these biomarkers in a cohort of children with Crohn’s disease (CD) and compare them with other measures of disease activity. Stool samples from children with CD were used to measure FC, CHI3L1, S100A12 and OPG by enzyme-linked immunosorbent assay. Serum inflammatory markers were measured and pediatric CD disease activity index (PCDAI) scores calculated. The simple endoscopic score for CD (SES-CD) was reported for a subgroup who underwent ileocolonoscopy corresponding with the stool samples. Sixty-five children were recruited. Children in clinical remission had lower FC and CHI3L1 levels than those with active disease (FC: 277 vs. 1648 µg/g, p = 0.012; CHI3L1: 23 vs. 227 ng/g, p = 0.013). FC levels differed between patients with clinically active or inactive isolated ileal CD. Although FC and CHI3L1 levels correlated strongly (r = 0.83), none of the fecal markers correlated well with serum markers. Only FC and OPG correlated with SES-CD scores (r = 0.57 and r = 0.48, respectively). In conclusion, FC correlated with both endoscopic and clinical disease activity and was the only biomarker that differentiated between active and inactive ileal CD. CHI3L1 also predicted clinical disease activity and correlated highly with FC. Further investigation of the role of CHI3L1 is required.
Collapse
|
4
|
Verdú E, Homs J, Boadas-Vaello P. Physiological Changes and Pathological Pain Associated with Sedentary Lifestyle-Induced Body Systems Fat Accumulation and Their Modulation by Physical Exercise. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:13333. [PMID: 34948944 PMCID: PMC8705491 DOI: 10.3390/ijerph182413333] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 12/02/2021] [Accepted: 12/10/2021] [Indexed: 12/11/2022]
Abstract
A sedentary lifestyle is associated with overweight/obesity, which involves excessive fat body accumulation, triggering structural and functional changes in tissues, organs, and body systems. Research shows that this fat accumulation is responsible for several comorbidities, including cardiovascular, gastrointestinal, and metabolic dysfunctions, as well as pathological pain behaviors. These health concerns are related to the crosstalk between adipose tissue and body systems, leading to pathophysiological changes to the latter. To deal with these health issues, it has been suggested that physical exercise may reverse part of these obesity-related pathologies by modulating the cross talk between the adipose tissue and body systems. In this context, this review was carried out to provide knowledge about (i) the structural and functional changes in tissues, organs, and body systems from accumulation of fat in obesity, emphasizing the crosstalk between fat and body tissues; (ii) the crosstalk between fat and body tissues triggering pain; and (iii) the effects of physical exercise on body tissues and organs in obese and non-obese subjects, and their impact on pathological pain. This information may help one to better understand this crosstalk and the factors involved, and it could be useful in designing more specific training interventions (according to the nature of the comorbidity).
Collapse
Affiliation(s)
- Enrique Verdú
- Research Group of Clinical Anatomy, Embryology and Neuroscience (NEOMA), Department of Medical Sciences, University of Girona, 17003 Girona, Spain;
| | - Judit Homs
- Research Group of Clinical Anatomy, Embryology and Neuroscience (NEOMA), Department of Medical Sciences, University of Girona, 17003 Girona, Spain;
- Department of Physical Therapy, EUSES-University of Girona, 17190 Salt, Spain
| | - Pere Boadas-Vaello
- Research Group of Clinical Anatomy, Embryology and Neuroscience (NEOMA), Department of Medical Sciences, University of Girona, 17003 Girona, Spain;
| |
Collapse
|
5
|
Lolansen SD, Rostgaard N, Andreassen SN, Simonsen AH, Juhler M, Hasselbalch SG, MacAulay N. Elevated CSF inflammatory markers in patients with idiopathic normal pressure hydrocephalus do not promote NKCC1 hyperactivity in rat choroid plexus. Fluids Barriers CNS 2021; 18:54. [PMID: 34863228 PMCID: PMC8645122 DOI: 10.1186/s12987-021-00289-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 11/13/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Idiopathic normal pressure hydrocephalus (iNPH) is a potentially reversible neurological condition of unresolved etiology characterized by a clinical triad of symptoms; gait disturbances, urinary incontinence, and cognitive deterioration. In the present study, we aimed to elucidate the molecular coupling between inflammatory markers and development of iNPH and determine whether inflammation-induced hyperactivity of the choroidal Na+/K+/2Cl- cotransporter (NKCC1) that is involved in cerebrospinal fluid (CSF) secretion could contribute to the iNPH pathogenesis. METHODS Lumbar CSF samples from 20 iNPH patients (10 with clinical improvement upon CSF shunting, 10 without clinical improvement) and 20 elderly control subjects were analyzed with the novel proximity extension assay technique for presence of 92 different inflammatory markers. RNA-sequencing was employed to delineate choroidal abundance of the receptors for the inflammatory markers found elevated in the CSF from iNPH patients. The ability of the elevated inflammatory markers to modulate choroidal NKCC1 activity was determined by addition of combinations of rat version of these in ex vivo experiments on rat choroid plexus. RESULTS 11 inflammatory markers were significantly elevated in the CSF from iNPH patients compared to elderly control subjects: CCL28, CCL23, CCL3, OPG, CXCL1, IL-18, IL-8, OSM, 4E-BP1, CXCL6, and Flt3L. One inflammatory marker, CDCP1, was significantly decreased in iNPH patients compared to control subjects. None of the inflammatory markers differed significantly when comparing iNPH patients with and without clinical improvement upon CSF shunting. All receptors for the elevated inflammatory markers were expressed in the rat and human choroid plexus, except CCR4 and CXCR1, which were absent from the rat choroid plexus. None of the elevated inflammatory markers found in the CSF from iNPH patients modulated the choroidal NKCC1 activity in ex vivo experiments on rat choroid plexus. CONCLUSION The CSF from iNPH patients contains elevated levels of a subset of inflammatory markers. Although the corresponding inflammatory receptors are, in general, expressed in the choroid plexus of rats and humans, their activation did not modulate the NKCC1-mediated fraction of choroidal CSF secretion ex vivo. The molecular mechanisms underlying ventriculomegaly in iNPH, and the possible connection to inflammation, therefore remains to be elucidated.
Collapse
Affiliation(s)
- Sara Diana Lolansen
- Department of Neuroscience, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark
| | - Nina Rostgaard
- Department of Neurosurgery, Rigshospitalet, Copenhagen, Denmark
| | - Søren Norge Andreassen
- Department of Neuroscience, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark
| | - Anja Hviid Simonsen
- Danish Dementia Research Centre, Department of Neurology, Rigshospitalet, Copenhagen, Denmark
| | - Marianne Juhler
- Department of Neurosurgery, Rigshospitalet, Copenhagen, Denmark
| | | | - Nanna MacAulay
- Department of Neuroscience, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark.
| |
Collapse
|
6
|
Murad H, Rafeeq M, Mosli M, Gari M, Basheikh M. Effect of sequential eradication therapy on serum osteoprotegerin levels in patients with Helicobacter pylori infection and co-existing inflammatory bowel disease. J Int Med Res 2021; 49:3000605211060648. [PMID: 34851775 PMCID: PMC8647270 DOI: 10.1177/03000605211060648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Objective To investigate the effect of sequential Helicobacter pylori
eradication therapy on serum osteoprotegerin levels in patients with
H. pylori infection and co-existing inflammatory bowel
disease (IBD). Methods Three groups of patients were involved in this observational cross-sectional
study: IBD (n = 83), H. pylori infection (HP, n = 68), and
H. pylori infection with co-existing IBD (HP + IBD,
n = 52). These groups were compared with a normal control group (NC,
n = 50). Serum osteoprotegerin, serum bone alkaline phosphatase (BALP), and
fecal calprotectin (FC) levels were measured. Results Serum osteoprotegerin levels were significantly correlated with the simple
endoscopic score for Crohn’s disease and Mayo score for ulcerative colitis.
The receiver operating characteristic analysis of osteoprotegerin revealed
high values for the area under the curve, sensitivity, and specificity.
Discriminant analysis illustrated that osteoprotegerin levels significantly
differentiated patients with IBD from healthy controls. Osteoprotegerin and
FC levels distinguished the IBD and HP + IBD groups from the NC and HP
groups. Conclusions Sequential eradication therapy did not affect serum osteoprotegerin levels in
patients with H. pylori infection and co-existing IBD.
Serum osteoprotegerin elevation might be a marker for IBD development in
patients with past or current H. pylori infection.
Collapse
Affiliation(s)
- Hussam Murad
- Department of Pharmacology, Faculty of Medicine, Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia.,Department of Pharmacology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Misbahuddin Rafeeq
- Department of Pharmacology, Faculty of Medicine, Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mahmoud Mosli
- Department of Medicine, Division of Gastroenterology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mamdouh Gari
- Department of Hematology, Faculty of Applied Medical Sciences, 37848King Abdulaziz University, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohammed Basheikh
- Department of Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| |
Collapse
|
7
|
Fu Z, Cai W, Shao J, Xue H, Ge Z, Fan H, Dong C, Wang C, Zhang J, Shen C, Zhang Y, Huang P, Yue M. Genetic Variants in TNFSF4 and TNFSF8 Are Associated With the Risk of HCV Infection Among Chinese High-Risk Population. Front Genet 2021; 12:630310. [PMID: 33841497 PMCID: PMC8027328 DOI: 10.3389/fgene.2021.630310] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 03/01/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND The tumor necrosis factor superfamily (TNFSF) and TNF receptor superfamily (TNFRSF) play important roles in the immune responses to infections. The aim of this study was to determine the impact of single nucleotide polymorphisms (SNPs) of several TNFSF/TNFRSF genes on the risk of hepatitis C virus (HCV) infection in the Chinese high-risk population. METHODS The TNFSF4-rs1234313, TNFSF4-rs7514229, TNFSF8-rs3181366, TNFSF8-rs2295800, TNFRSF8-rs2298209, and TNFRSF8-rs2230625 SNPs were genotyped in 2309 uninfected controls, 597 subjects with spontaneous HCV clearance and 784 patients with persistent HCV infection using the TaqMan-MGB assay. The putative functions of the positive SNPs were determined using online bioinformatics tools. RESULTS After adjusting for gender, age, high-risk population, alanine transaminase (ALT), aspartate aminotransferase (AST), IL28B-rs12979860 and rs8099917 genotypes, the non-conditional logistic regression showed that rs7514229-T, rs3181366-T, and rs2295800-C were associated with an increased risk of HCV infection (all P FDR < 0.05). Combined analysis of rs7514229-T and rs3181366-T risk alleles showed that the subjects carrying 2-4 risk alleles were more susceptible to HCV infection compared with those lacking any risk allele (all P < 0.001). Furthermore, the risk of HCV infection increased with the number of risk alleles (P trend < 0.001). In silico analysis showed that rs7514229, rs3181366, and rs2295800 polymorphisms may affect the transcription of mRNA by regulating miRNA binding, TF binding, and promoter activation, respectively, which may have biological consequences. CONCLUSION TNFSF4-rs7514229, TNFSF8-rs3181366, and TNFSF8-rs2295800 are associated with increased risk of HCV infection in the Chinese high-risk population.
Collapse
Affiliation(s)
- Zuqiang Fu
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, China
- Institute of Epidemiology and Microbiology, Eastern Theater Command Centers for Disease Control and Prevention, Nanjing, China
| | - Weihua Cai
- Department of Hepatobiliary Surgery, Third Affiliated Hospital of Nantong University, Nantong, China
| | - Jianguo Shao
- Department of Gastroenterology, Third Affiliated Hospital of Nantong University, Nantong, China
| | - Hong Xue
- Department of Infectious Diseases, Third Affiliated Hospital of Nantong University, Nantong, China
| | - Zhijun Ge
- Department of Critical Care Medicine, The Affiliated Yixing Hospital of Jiangsu University, Yixing, China
| | - Haozhi Fan
- Department of Information, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Chen Dong
- Department of Epidemiology and Statistics, School of Public Health, Soochow University Medical College, Suzhou, China
| | - Chunhui Wang
- Institute of Epidemiology and Microbiology, Eastern Theater Command Centers for Disease Control and Prevention, Nanjing, China
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Jinwei Zhang
- Department of Anesthesiology, Affiliated Drum-Tower Hospital of Medical College of Nanjing University, Nanjing, China
| | - Chao Shen
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, China
- Institute of Epidemiology and Microbiology, Eastern Theater Command Centers for Disease Control and Prevention, Nanjing, China
| | - Yun Zhang
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, China
- Institute of Epidemiology and Microbiology, Eastern Theater Command Centers for Disease Control and Prevention, Nanjing, China
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Peng Huang
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, China
- Institute of Epidemiology and Microbiology, Eastern Theater Command Centers for Disease Control and Prevention, Nanjing, China
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Ming Yue
- Department of Infectious Diseases, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| |
Collapse
|
8
|
Śliwicka E, Cisoń T, Pilaczyńska-Szcześniak Ł, Ziemba A, Straburzyńska-Lupa A. Effects of marathon race on selected myokines and sclerostin in middle-aged male amateur runners. Sci Rep 2021; 11:2813. [PMID: 33531538 PMCID: PMC7854637 DOI: 10.1038/s41598-021-82288-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 01/15/2021] [Indexed: 02/06/2023] Open
Abstract
In recent years, there has been increasing interest in the homeostatic response to extreme exercises, especially in the integrated function of muscle and bone. The aim of this study was to evaluate the effects of a marathon race on selected myokines and sclerostin in 10 male recreational runners (mean age 41 ± 7.7 years). Body composition, bone mineral density (BMD), and the serum concentration of myostatin, irisin, sclerostin, osteoprotegerin (OPG), 25-hydroxyvitamin D (25(OH)D), parathyroid hormone (PTH), high-sensitivity interleukin-6 (hsIL-6), tumor necrosis factor α (TNFα), high-sensitivity C-reactive protein (hsCRP) and myoglobin, were determined 24 h before and 24 h and 72 h after a marathon race. Post-marathon increases were observed in the levels of myostatin (1.2-fold), OPG (1.5-fold), and PTH (1.3-fold), hsIL-6 (1.9-fold), myoglobin (4.1-fold), hsCRP (fivefold), TNFα (2.6-fold), after 24 h; and in myostatin (1.2-fold), irisin (1.1-fold), sclerostin (1.3-fold), OPG (1.3-fold), and PTH (1.4-fold), hsIL-6 (1.4-fold), TNFα (1.9-fold), after 72 h compared to the baseline level. The results show that in response to the marathon run, a complex network of endocrine interactions is initiated. Further research is needed to fully elucidate the long-term impact of prolonged high intensity exercise on the human body.
Collapse
Affiliation(s)
- Ewa Śliwicka
- Department of Physiology and Biochemistry, Poznan University of Physical Education, Królowej Jadwigi Str. 27/39, 61-871, Poznań, Poland.
| | - Tomasz Cisoń
- Department of Physiotherapy, State University of Applied Science in Nowy Sącz, Nowy Sącz, Poland
| | - Łucja Pilaczyńska-Szcześniak
- Faculty of Rehabilitation and Sport, The President Stanisław Wojciechowski State University of Applied Sciences in Kalisz, Kalisz, Poland
| | - Andrzej Ziemba
- Department of Applied Physiology, Mossakowski Medical Research Centre, Polish Academy of Sciences, Warsaw, Poland
| | - Anna Straburzyńska-Lupa
- Department of Physical Therapy and Sports Recovery, Poznan University of Physical Education, Poznań, Poland
| |
Collapse
|
9
|
Tschiderer L, Willeit J, Schett G, Kiechl S, Willeit P. Osteoprotegerin concentration and risk of cardiovascular outcomes in nine general population studies: Literature-based meta-analysis involving 26,442 participants. PLoS One 2017; 12:e0183910. [PMID: 28837646 PMCID: PMC5570489 DOI: 10.1371/journal.pone.0183910] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 08/14/2017] [Indexed: 11/18/2022] Open
Abstract
Background Recent experimental and epidemiological studies have suggested that osteoprotegerin, a key regulator in bone metabolism, may be involved in vascular calcification and atherosclerosis. Our aim was to reliably quantify the associations of osteoprotegerin concentration and incidence of first-ever cardiovascular disease outcomes in the general population. Methods Using the electronic databases MEDLINE, EMBASE and Web of Science (January 1975 and April 2017, no language restrictions), nine relevant studies were identified involving a total of 26,442 participants recruited from the general population. Over a mean follow-up of 8.5 years, 2,160 cardiovascular disease, 2,123 coronary heart disease, and 1,102 stroke outcomes were recorded. Study-specific risk ratios were combined with random-effects meta-analysis. Results When comparing individuals in the top with those in the bottom third of osteoprotegerin concentration, the combined risk ratio was 1.83 (95% confidence interval: 1.46, 2.30; P<0.001; I2 = 76.8%) for cardiovascular disease, 1.72 for coronary heart disease (1.26, 2.37; P = 0.001; I2 = 83.5%), and 1.58 for stroke (1.18, 2.12; P = 0.002; I2 = 65.2%). Associations appeared stronger at younger age (P = 0.018 for cardiovascular disease), in studies that did not employ statistical adjustment (P = 0.023 for cardiovascular disease and 0.018 for coronary heart disease), and potentially in studies that measured osteoprotegerin in plasma rather than in serum (P = 0.005 for cardiovascular disease and 0.018 for coronary heart disease). Magnitudes of associations did not differ according to the proportion of males, geographical region, or osteoprotegerin assay manufacturer. There was no evidence for publication bias for any of the outcomes assessed (all P>0.05). Conclusions Elevated osteoprotegerin concentration is associated with an increased risk of incident cardiovascular disease in the general population. The mechanisms underlying this observation deserve further investigation.
Collapse
Affiliation(s)
- Lena Tschiderer
- Department of Neurology, Innsbruck Medical University, Innsbruck, Austria
| | - Johann Willeit
- Department of Neurology, Innsbruck Medical University, Innsbruck, Austria
| | - Georg Schett
- Department of Internal Medicine 3, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Stefan Kiechl
- Department of Neurology, Innsbruck Medical University, Innsbruck, Austria
| | - Peter Willeit
- Department of Neurology, Innsbruck Medical University, Innsbruck, Austria
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
- * E-mail:
| |
Collapse
|
10
|
Amirhosseini M, Andersson G, Aspenberg P, Fahlgren A. Mechanical instability and titanium particles induce similar transcriptomic changes in a rat model for periprosthetic osteolysis and aseptic loosening. Bone Rep 2017; 7:17-25. [PMID: 28795083 PMCID: PMC5544474 DOI: 10.1016/j.bonr.2017.07.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 07/24/2017] [Accepted: 07/26/2017] [Indexed: 01/30/2023] Open
Abstract
Wear debris particles released from prosthetic bearing surfaces and mechanical instability of implants are two main causes of periprosthetic osteolysis. While particle-induced loosening has been studied extensively, mechanisms through which mechanical factors lead to implant loosening have been less investigated. This study compares the transcriptional profiles associated with osteolysis in a rat model for aseptic loosening, induced by either mechanical instability or titanium particles. Rats were exposed to mechanical instability or titanium particles. After 15 min, 3, 48 or 120 h from start of the stimulation, gene expression changes in periprosthetic bone tissue was determined by microarray analysis. Microarray data were analyzed by PANTHER Gene List Analysis tool and Ingenuity Pathway Analysis (IPA). Both types of osteolytic stimulation led to gene regulation in comparison to unstimulated controls after 3, 48 or 120 h. However, when mechanical instability was compared to titanium particles, no gene showed a statistically significant difference (fold change ≥ ± 1.5 and adjusted p-value ≤ 0.05) at any time point. There was a remarkable similarity in numbers and functional classification of regulated genes. Pathway analysis showed several inflammatory pathways activated by both stimuli, including Acute Phase Response signaling, IL-6 signaling and Oncostatin M signaling. Quantitative PCR confirmed the changes in expression of key genes involved in osteolysis observed by global transcriptomics. Inflammatory mediators including interleukin (IL)-6, IL-1β, chemokine (C-C motif) ligand (CCL)2, prostaglandin-endoperoxide synthase (Ptgs)2 and leukemia inhibitory factor (LIF) showed strong upregulation, as assessed by both microarray and qPCR. By investigating genome-wide expression changes we show that, despite the different nature of mechanical implant instability and titanium particles, osteolysis seems to be induced through similar biological and signaling pathways in this rat model for aseptic loosening. Pathways associated to the innate inflammatory response appear to be a major driver for osteolysis. Our findings implicate early restriction of inflammation to be critical to prevent or mitigate osteolysis and aseptic loosening of orthopedic implants.
Collapse
Affiliation(s)
- Mehdi Amirhosseini
- Division of Cell Biology, Department of Clinical and Experimental Medicine, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
- Corresponding author.
| | - Göran Andersson
- Division of Pathology, Department of Laboratory Medicine, Karolinska Institutet, Karolinska University Hospital, Huddinge, Sweden
| | - Per Aspenberg
- Orthopedics, Department of Clinical and Experimental Medicine, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
| | - Anna Fahlgren
- Division of Cell Biology, Department of Clinical and Experimental Medicine, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
| |
Collapse
|