1
|
Ryan-Moore E, Mavrommatis Y, Waldron M. Systematic Review and Meta-Analysis of Candidate Gene Association Studies With Fracture Risk in Physically Active Participants. Front Genet 2020; 11:551. [PMID: 32612634 PMCID: PMC7308497 DOI: 10.3389/fgene.2020.00551] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 05/07/2020] [Indexed: 12/12/2022] Open
Abstract
Background: Fractures are common in physically active populations and genetic differences may mediate injury risk. Objective: To meta-analyse the pooled results of candidate gene association studies with non-osteoporotic fracture risk in physically active humans. Methods: Systematic searching of databases returned 11 eligible studies published in English. Pooled odds ratios (ORs) with 95% confidence intervals (CI) were produced using allele contrast, recessive and homozygote contrast meta-analysis models to evaluate associations of risk alleles in the COL1A1 (rs1800012), COL2A1 (rs412777), CTR (rs1801197), ESR1 (rs2234693 and rs9340799) LRP5 (rs3736228), VDR (rs10735810, rs7975232, rs1544410, and rs731236) genes with fracture incidence. Results: Eligible study quality was generally low (7/11) and no significant overall effect was found for any genetic variant with any comparison model (p > 0.05). A trivial reduction in fracture risk was found for female participants with the COL1A1 Sp1 (rs1800012) T allele (OR = 0.48, 95% CI = 0.25–0.91, p = 0.03, d = –0.18). Conclusions: No overall effect was found from the pooled results of included genetic variants on fracture risk in physically active participants. The COL1A1 Sp1 rs1800012 T allele may reduce fracture risk in physically active females but further high-quality research with sex-specific analysis is required. Trial Registration: (PROSPERO; CRD42018115008).
Collapse
Affiliation(s)
- Edward Ryan-Moore
- Faculty of Sport, Health and Applied Sciences, St Mary's University, London, United Kingdom.,Fulham Football Club, Sports Science and Medicine, London, United Kingdom
| | - Yiannis Mavrommatis
- Faculty of Sport, Health and Applied Sciences, St Mary's University, London, United Kingdom.,Nell Health Ltd., Genetics & Nutrition, London, United Kingdom
| | - Mark Waldron
- Research Centre in Applied Sports, Technology, Exercise and Medicine, Swansea University, Swansea, United Kingdom.,School of Science and Technology, University of New England, Armidale, NSW, Australia
| |
Collapse
|
2
|
Whole genome sequence analysis reveals genetic structure and X-chromosome haplotype structure in indigenous Chinese pigs. Sci Rep 2020; 10:9433. [PMID: 32523001 PMCID: PMC7286894 DOI: 10.1038/s41598-020-66061-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 05/14/2020] [Indexed: 12/05/2022] Open
Abstract
Chinese indigenous pigs exhibit considerable phenotypic diversity, but their population structure and the genetic basis of agriculturally important traits need further exploration. Here, we sequenced the whole genomes of 24 individual pigs representing 22 breeds distributed throughout China. For comparison with European and commercial breeds (one pig per breed), we included seven published pig genomes with our new genomes for analyses. Our results showed that breeds grouped together based on morphological classifications are not necessarily more genetically similar to each other than to breeds from other groups. We found that genetic material from European pigs likely introgressed into five Chinese breeds. We have identified two new subpopulations of domestic pigs that encompass morphology-based criteria in China. The Southern Chinese subpopulation comprises the classical South Chinese Type and part of the Central China Type. In contrast, the Northern Chinese subpopulation comprises the North China Type, the Lower Yangtze River Basin Type, the Southwest Type, the Plateau Type, and the remainder of the Central China Type. Eight haplotypes and two recombination sites were identified within a conserved 40.09 Mb linkage-disequilibrium (LD) block on the X chromosome. Potential candidate genes (LEPR, FANCC, COL1A1, and PCCA) influencing body size were identified. Our findings provide insights into the phylogeny of Chinese indigenous pig breeds and benefit gene mining efforts to improve major economic traits.
Collapse
|
3
|
Bae IS, Kim JM, Cheong JH, Ryu JI, Han MH. Association between bone mineral density and brain parenchymal atrophy and ventricular enlargement in healthy individuals. Aging (Albany NY) 2019; 11:8217-8238. [PMID: 31575827 PMCID: PMC6814624 DOI: 10.18632/aging.102316] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Accepted: 09/21/2019] [Indexed: 01/01/2023]
Abstract
Bone, vascular smooth muscle, and arachnoid trabeculae are composed of the same type of collagen. However, no studies have investigated the relationship between bone mineral density deterioration and cerebral atrophy, both of which occur in normal, healthy aging. Accordingly, we evaluated whether bone mineral density was associated with brain parenchymal atrophy and ventricular enlargement in healthy individuals. Intracranial cavity, brain parenchyma, and lateral ventricles volumes were measured using brain magnetic resonance imaging (MRI) with a semiautomated tool. We included 267 individuals with no history of dementia or other neurological diseases, who underwent one or more dual-energy X-ray absorptiometry scans and brain MRIs simultaneously (within 3 years of each other) at our hospital over an 11-year period. We found that progression of brain parenchymal atrophy was positively associated with bone mineral density after full adjustment (B, 0.94; P < 0.001). In addition, individuals with osteoporosis showed more parenchymal atrophy among those younger than 80 years. In addition, we observed greater ventricular enlargement in individuals with osteoporosis among those older than 80 years. We believe that osteoporosis may play a role in the acceleration of parenchymal atrophy during the early-stages, and ventricular enlargement in the late-stages, of normal aging-related cerebral atrophy.
Collapse
Affiliation(s)
- In-Suk Bae
- Department of Neurosurgery, Hanyang University Guri Hospital, Guri, Gyonggi-do, Korea
| | - Jae Min Kim
- Department of Neurosurgery, Hanyang University Guri Hospital, Guri, Gyonggi-do, Korea
| | - Jin Hwan Cheong
- Department of Neurosurgery, Hanyang University Guri Hospital, Guri, Gyonggi-do, Korea
| | - Je Il Ryu
- Department of Neurosurgery, Hanyang University Guri Hospital, Guri, Gyonggi-do, Korea
| | - Myung-Hoon Han
- Department of Neurosurgery, Hanyang University Guri Hospital, Guri, Gyonggi-do, Korea
| |
Collapse
|
4
|
Erdem M, Tüfekçi Ö, Kızıldağ S, Yılmaz Ş, Kızmazoğlu D, Eroğlu Filibeli B, Ören H. Investigation of the Relationship Between Fok1 and Col1A1 Gene Polymorphisms and Development of Treatment-Related Bone Complications in Children with Acute Lymphoblastic Leukemia. Turk J Haematol 2018; 36:12-18. [PMID: 30251958 PMCID: PMC6373515 DOI: 10.4274/tjh.galenos.2018.2018.0221] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Objective: In acute lymphoblastic leukemia (ALL), various clinical risk factors and genetic predispositions contribute to the development of bone complications during and after chemotherapy. In this study, we aimed to investigate whether vitamin D receptor (VDR) Fok1 and collagen protein Col1A1 Sp1-binding site gene polymorphisms, which are important in bone mineral and matrix formation, have effects on the development of bone abnormalities in childhood ALL survivors. Materials and Methods: Fifty children with ALL who were treated with the ALL Berlin-Frankfurt-Muenster-95 protocol between 1998 and 2008 and were followed for at least 7 years were enrolled. The control group consisted of 96 healthy children. VDR Fok1 and Col1A1 Sp1-binding site gene polymorphisms were analyzed by polymerase chain reaction and restriction fragment length polymorphism. Bone mineral density (BMD) and markers of bone metabolism were all noted. All patients who presented with pain in the joints were examined for bone pathologies while on chemotherapy or during long-term follow-up. Results: Low BMD (16%), osteoporosis (12%), and osteonecrosis (8%) were present in a total of 18 patients (36%). The frequency of osteonecrosis and total bone abnormalities was significantly higher in children aged ≥10 years (p=0.001). The risk of low BMD and osteonecrosis was higher in those with vitamin D deficiency. Only the Col1A1 Sp1-binding site gene polymorphism showed a significant association in ALL patients with osteonecrosis. Conclusion: The development of therapy-induced bone mineral loss and osteonecrosis in children with ALL is frequent and the risk is especially higher in children aged ≥10 years and with vitamin D deficiency. The association between Col1A1 Sp1-binding site gene polymorphisms and osteonecrosis has to be assessed in a larger group of ALL survivors.
Collapse
Affiliation(s)
- Melek Erdem
- Dokuz Eylül University Faculty of Medicine, Department of Pediatric Hematology, İzmir, Turkey
| | - Özlem Tüfekçi
- Dokuz Eylül University Faculty of Medicine, Department of Pediatric Hematology, İzmir, Turkey
| | - Sefa Kızıldağ
- Dokuz Eylül University Faculty of Medicine, Department of Medical Biology, İzmir, Turkey
| | - Şebnem Yılmaz
- Dokuz Eylül University Faculty of Medicine, Department of Pediatric Hematology, İzmir, Turkey
| | - Deniz Kızmazoğlu
- Dokuz Eylül University Faculty of Medicine, Department of Pediatric Hematology, İzmir, Turkey
| | - Berna Eroğlu Filibeli
- Dokuz Eylül University Facullty of Medicine, Department of Pediatrics, İzmir, Turkey
| | - Hale Ören
- Dokuz Eylül University Faculty of Medicine, Department of Pediatric Hematology, İzmir, Turkey
| |
Collapse
|
5
|
Wu J, Yu M, Zhou Y. Association of collagen type I alpha 1 +1245G/T polymorphism and osteoporosis risk in post-menopausal women: a meta-analysis. Int J Rheum Dis 2017; 20:903-910. [PMID: 28261929 DOI: 10.1111/1756-185x.13052] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
AIM To fully understand the association between collagen type I alpha 1 (COL1A1) +1245G/T polymorphism and osteoporosis risk in post-menopausal women. METHODS We searched the electronic databases including PubMed, Embase and Cochrane library updated to January 2016, as well as printed articles. Studies were screened according to the predefined inclusion and exclusion criteria, and the included studies were further assessed by Clark scores system. Furthermore, the association between COL1A1 +1245G/T polymorphism and osteoporosis risk was assessed using odds ratios (ORs) and their 95% confidence intervals (95% CIs). Additionally, the meta-analysis was carried out using Review Manger 5.1 software (Cochrane Collaboration, Oxford, UK) and Stata 11.0 software (StataCorp, College Station, TX, USA). RESULTS A total of five studies, which contained 1557 subjects (including 458 osteoporosis patients, 269 osteopenic patients and 830 normal controls), were included. Further, the included studies achieved Clark scores no less than 5, indicating a moderate or high quality. The pooled effect size indicated that there was a significant association between COL1A1 +1245G/T polymorphism and osteoporosis risk only under a co-dominant model (GG vs. TT, OR = 2.45, 95% CI = 1.11-5.44, P = 0.03). Moreover, there was no significant correlation between COL1A1 +1245G/T polymorphism and osteopenic risk under each model (P > 0.05). CONCLUSION There might be a certain relationship between GG genotype of COL1A1 +1245G/T polymorphism and osteoporosis risk in post-menopausal women.
Collapse
Affiliation(s)
- Jian Wu
- Department of Orthopaedic Surgery, Beijing Jishuitan Hospital, Fourth Clinical College of Peking University, Beijing, China
| | - Meng Yu
- Department of Orthopedics, Beijing Shijitan Hospital Affiliated to Capital Medical University, Beijing, China
| | - Yixin Zhou
- Department of Orthopaedic Surgery, Beijing Jishuitan Hospital, Fourth Clinical College of Peking University, Beijing, China
| |
Collapse
|
6
|
Yu S, Yerges-Armstrong LM, Chu Y, Zmuda JM, Zhang Y. Transcriptional Regulation of Frizzled-1 in Human Osteoblasts by Sp1. PLoS One 2016; 11:e0163277. [PMID: 27695039 PMCID: PMC5047477 DOI: 10.1371/journal.pone.0163277] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 09/05/2016] [Indexed: 02/03/2023] Open
Abstract
The wingless pathway has a powerful influence on bone metabolism and is a therapeutic target in skeletal disorders. Wingless signaling is mediated in part through the Frizzled (FZD) receptor family. FZD transcriptional regulation is poorly understood. Herein we tested the hypothesis that Sp1 plays an important role in the transcriptional regulation of FZD1 expression in osteoblasts and osteoblast mineralization. To test this hypothesis, we conducted FZD1 promoter assays in Saos2 cells with and without Sp1 overexpression. We found that Sp1 significantly up-regulates FZD1 promoter activity in Saos2 cells. Chromatin immunoprecipitation (ChIP) and electrophoretic mobility shift (EMSA) assays identified a novel and functional Sp1 binding site at -44 to -40 from the translation start site in the FZD1 promoter. The Sp1-dependent activation of the FZD1 promoter was abolished by mithramycin A (MMA), an antibiotic affecting both Sp1 binding and Sp1 protein levels in Saos2 cells. Similarly, down-regulation of Sp1 in hFOB cells resulted in less FZD1 expression and lower alkaline phosphatase activity. Moreover, over-expression of Sp1 increased FZD1 expression and Saos2 cell mineralization while MMA decreased Sp1 and FZD1 expression and Saos2 cell mineralization. Knockdown of FZD1 prior to Sp1 overexpression partially abolished Sp1 stimulation of osteoblast differentiation markers. Taken together, our results suggest that Sp1 plays a role in human osteoblast differentiation and mineralization, which is at least partially mediated by Sp1-dependent transactivation of FZD1.
Collapse
Affiliation(s)
- Shibing Yu
- Department of Medicine, School of Medicine, University of Pittsburgh, Pennsylvania, United States of America
| | - Laura M. Yerges-Armstrong
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pennsylvania, United States of America
- Program in Personalized and Genomic Medicine and Department of Medicine, Division of Endocrinology, Diabetes and Nutrition, School of Medicine, University of Maryland, College Park, Maryland, United States of America
| | - Yanxia Chu
- Department of Medicine, School of Medicine, University of Pittsburgh, Pennsylvania, United States of America
| | - Joseph M. Zmuda
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pennsylvania, United States of America
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pennsylvania, United States of America
| | - Yingze Zhang
- Department of Medicine, School of Medicine, University of Pittsburgh, Pennsylvania, United States of America
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pennsylvania, United States of America
- * E-mail:
| |
Collapse
|
7
|
Genetics of pediatric bone strength. BONEKEY REPORTS 2016; 5:823. [PMID: 27579163 DOI: 10.1038/bonekey.2016.50] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 05/23/2016] [Indexed: 12/15/2022]
Abstract
Osteoporosis is one of the most common chronic forms of disability in postmenopausal women and represents a major health burden around the world. Bone fragility is affected by bone mineral density (BMD), and, one of the most important factors in preventing osteoporosis is optimizing peak bone mass, which is achieved during growth in childhood and adolescence. BMD is a complex trait resulting from environmental and genetic factors. Genome-wide association studies have discovered robust genetic signals influencing BMD in adults, and similar studies have also been conducted to investigate the genetics of BMD in the pediatric setting. These latter studies have revealed that many adult osteoporosis-related loci also regulate BMD during growth. These investigations have the potential to profoundly impact public health and will allow for the eventual development of effective interventions for the prevention of osteoporosis.
Collapse
|
8
|
Villegas-Martínez I, de-Miguel-Elízaga I, Carrasco-Torres R, Marras C, Canteras-Jordana M, Yedra-Guzmán MJ, Martínez-Villanueva M, Tortosa-Conesa D, Martín-Fernández J. The COL1A1 SP1 polymorphism is associated with lower bone mineral density in patients treated with valproic acid. Pharmacogenet Genomics 2016; 26:126-32. [DOI: 10.1097/fpc.0000000000000199] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
9
|
Abstract
During normal childhood and adolescence, the skeleton undergoes tremendous change. Utilizing the processes of modeling and remodeling, the skeleton acquires its adult configuration and ultimately achieves peak bone mass. Optimization of peak bone mass requires the proper interaction of environmental, dietary, hormonal, and genetic influences. A variety of acute and chronic conditions, as well as genetic polymorphisms, are associated with reduced bone density, which can lead to an increased risk of fracture both in childhood and later during adulthood. Bone densitometry has an established role in the evaluation of adults with bone disorders, and the development of suitable reference ranges for children now permits the application of this technology to younger individuals. We present a brief overview of the factors that determine bone density and the emerging role of bone densitometry in the assessment of bone mass in growing children and adolescents.
Collapse
Affiliation(s)
- Michael A. Levine
- Director, Center for Bone Health, Chief, Division of Endocrinology and Diabetes, The Children's Hospital of Philadelphia, Professor of Pediatrics and Medicine, University of Pennsylvania Perelman School of Medicine, U.S.A.
| |
Collapse
|
10
|
Zemel BS. Human biology at the interface of paediatrics: measuring bone mineral accretion during childhood. Ann Hum Biol 2012; 39:402-11. [PMID: 22834897 DOI: 10.3109/03014460.2012.704071] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Professor Tanner established a paradigm for the study of growth and development that demands precise growth measurements, description of normal variability through development to adulthood, consideration of the effects of tempo and the study of factors that influence growth outcomes. The relatively new field of paediatric bone health assessment fits this paradigm and reflects the collaboration of human biologists and paediatricians in understanding the growth of the human skeleton. REVIEW This review describes the reasons for clinical assessment of bone density in children, the technological developments in bone health assessment in children, the development of reference curves and the effects of growth, body composition, pubertal timing, genetics and lifestyle on bone health outcomes.
Collapse
Affiliation(s)
- Babette S Zemel
- Division of Gastroenterology, Hepatology and Nutrition, The Children's Hospital of Philadelphia, The Perelman School of Medicine, University of Pennsylvania, 3535 Market Street, room 1560, Philadelphia, PA 19104-4399, USA.
| |
Collapse
|
11
|
Perrotti V, Palmieri A, Pellati A, Degidi M, Ricci L, Piattelli A, Carinci F. Effect of titanium surface topographies on human bone marrow stem cells differentiation in vitro. Odontology 2012; 101:133-9. [PMID: 22678711 DOI: 10.1007/s10266-012-0067-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2011] [Accepted: 04/15/2012] [Indexed: 01/28/2023]
Abstract
Coating characteristics of dental implants such as composition and topography regulate cell response during implant healing. The aim of this study was to assess how surface topography can affect osteogenic differentiation of mesenchymal stem cells (MSCs) by analyzing the expression levels of bone-related genes and MSCs marker. Thirty disk-shaped, commercially pure Grade 2 titanium samples (10 × 2 mm) with 3 different surface topographies (DENTSPLY-Friadent GmbH, Mannheim, Germany) were used in the present study: 10 Ti machined disks (control), 10 Ti sandblasted and acid-etched disks (DPS(®)) and 10 sandblasted and acid-etched disks at high temperature (Plus(®)). Samples were processed for real-time reverse transcription-polymerase chain reaction (RT-PCR) analysis. By comparing machined and Plus(®) disks, quantitative real-time RT-PCR showed a significant reduction of the bone-related genes osteocalcin (BGLAP) and osteoblast transcriptional factor (RUNX2). The comparison between DPS(®) and Plus(®) disks showed a slight induction of all the genes examined (RUNX2, ALPL, COL1A1, COL3A1, ENG, FOSL1, SPP1, and SP7); only the expression of BGLAP remained stable. The present study, demonstrated that implant surface topography affects osteoblast gene expression. Indeed, Plus(®) surface produces an effect on MSCs in the late differentiation stages.
Collapse
Affiliation(s)
- Vittoria Perrotti
- Dental School, University of Chieti-Pescara, Via F. Sciucchi 63, 66100, Chieti, Italy
| | | | | | | | | | | | | |
Collapse
|
12
|
Sollazzo V, Palmieri A, Girardi A, Zollino I, Brunelli G, Spinelli G, Carinci F. Osteoplant acts on stem cells derived from peripheral blood. J Indian Soc Periodontol 2011; 14:12-7. [PMID: 20922073 PMCID: PMC2933523 DOI: 10.4103/0972-124x.65429] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 07/10/2009] [Accepted: 11/14/2009] [Indexed: 11/05/2022] Open
Abstract
Objectives: The osteoplant is an equine, flexible, heterologous, deantigenic, cortical, and spongy bone tissue, totally reabsorbable, used for implantation of bone tissue, to restore skeletal, even weight-bearing structures. However, how the osteoplant alters osteoblast activity to promote bone formation is poorly understood. Materials and Methods: To study how the osteoplant induces osteoblast differentiation in mesenchymal stem cells, the expression levels of bone-related genes, and mesenchymal stem cell markers are analyzed, using real time Reverse Transcription-Polymerase Chain Reaction (RT-PCR). Results: The osteoplant causes induction of osteoblast transcriptional factors such as osterix (RUNX2), and of bone-related genes such as osteopontin (SPP1) and osteocalcin (BGLAP). In contrast the expression of ENG (CD105) is significantly decreased in stem cells treated with osteoplant, with respect to untreated cells, indicating the differentiation effect of this biomaterial on stem cells. Conclusion: The obtained results can be relevant to better understand the molecular mechanism of bone regeneration and as a model for comparing other materials with similar clinical effects.
Collapse
|
13
|
Silvano L, Miras M, Pérez A, Picotto G, Díaz de Barboza G, Muñoz L, Martin S, Sobrero G, Armelini P, Mericq V, Tolosa de Talamoni N. Comparative analysis of clinical, biochemical and genetic aspects associated with bone mineral density in small for gestational age children. J Pediatr Endocrinol Metab 2011; 24:511-7. [PMID: 21932590 DOI: 10.1515/jpem.2011.196] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Clinical, biochemical and genetic analysis related to bone mineral density (BMD) were carried out in children born small for gestational age (SGA) that failed to achieve postnatal catch-up growth (CUG), SGA children that completed CUG and adequate for gestational age (AGA) children. Serum IGF-I, IGF-II, IGF binding protein-3 and acid-labile subunit were lower in the SGA-CUG children as compared with the other groups. Frequencies of polymorphic variants of vitamin D receptor, estrogen receptor and collagen genes were similar among groups. The genotype 194-192 of the IGF-I gene was higher in the SGA-CUG and 196-192 was higher in the SGA+CUG group. In the SGA-CUG group, the genotype SS of the COLIA1 gene was associated with lower BMD. Therefore, IGF system and COLIA1 polymorphism distinguish prepubertal SGA-CUG children from the SGA+CUG children of the same age. Furthermore, COLIA1 polymorphism could be useful to predict osteopenia in SGA-CUG children.
Collapse
Affiliation(s)
- Liliana Silvano
- Servicio de Endocrinología, Hospital de Niños de la Santísima Trinidad, Córdoba, Argentina
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Blades HZ, Arundel P, Carlino WA, Dalton A, Crook JS, Freeman JV, Bishop NJ. Collagen gene polymorphisms influence fracture risk and bone mass acquisition during childhood and adolescent growth. Bone 2010; 47:989-94. [PMID: 20736093 DOI: 10.1016/j.bone.2010.08.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2010] [Revised: 08/03/2010] [Accepted: 08/17/2010] [Indexed: 11/18/2022]
Abstract
Fractures are common in childhood with incidence maximal during puberty, around the time of peak height velocity. The relationships between single nucleotide polymorphisms (SNPs) in COL1A1 and COL1A2, bone mass acquisition, and childhood fractures are unclear. We recruited 394 children and adolescents aged 4 to 16 years into a noninterventional case control study. All had suffered an episode of trauma leading to hospital presentation; 205 had sustained a fracture. We determined the frequency of COL1A1 Sp1 and COL1A2 PvuII SNPs. Lumbar spine dual-energy X-ray absorptiometry (DXA) measurements were compared between fracture and control groups according to genotype. Subgroup analyses were performed according to sex, pubertal status, and site of injury. We found that the COL1A2 'PP' genotype approximately halved the odds of fracture in the study group as a whole (OR=0.45 [95% CI=0.24-0.82], p=0.01). In particular, possession of the same genotype by subjects who had not yet progressed beyond midpuberty was associated with reduced odds of fracture (OR=0.38 [95% CI=0.19-0.79], p=0.01) and significantly increased lumbar spine bone mineral content (p=0.03) and areal bone mineral density (p=0.007). The COL1A1 Sp1 binding site 's' allele was associated with a trebling of the odds of fracture in prepubertal children (OR=3.1 [95% CI=1.43-6.61], p=0.004), but there was no association with any DXA measures. This is the first paediatric study to our knowledge that shows an association of the COL1A2 PvuII restriction site 'PP' genotype with a reduced risk of fracture and of the COL1A1 Sp1 binding site 's' allele with an increased risk. The association of these variants with fracture risk is greatest during periods of predominantly appendicular bone growth.
Collapse
Affiliation(s)
- H Z Blades
- Academic Unit of Child Health, Sheffield Children's Hospital, Western Bank, Sheffield, S10 2TH, UK.
| | | | | | | | | | | | | |
Collapse
|
15
|
Sollazzo V, Palmieri A, Girardi A, Farinella F, Carinci F. Engipore acts on human bone marrow stem cells. Saudi Dent J 2010; 22:161-6. [PMID: 23960492 DOI: 10.1016/j.sdentj.2010.07.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2009] [Revised: 04/14/2010] [Accepted: 06/05/2010] [Indexed: 01/15/2023] Open
Abstract
OBJECTIVES Porous HA scaffolds are promising materials for tissue engineering because they offer a tridimensional support and serve as template for cell proliferation and at last tissue formation. Engipore provide a natural 3D scaffold with organic fibrous material in bone. However, how this material alters osteoblast activity to promote bone formation is poorly understood. MATERIALS AND METHODS To study how Engipore can induce osteoblast differentiation in mesenchymal stem cells, the expression levels of bone related genes and mesenchymal stem cells marker were analyzed. RESULTS Engipore causes a significant induction of osteoblast transcriptional factors like SP7 and RUNX2 and of the bone-related gene osteocalcin (BGLAP). The expression of CD105 was not significantly changed in stem cells treated with Engipore with respect to untreated cells, while SSP1 (osteopontin) was significantly down expressed thus reducing osteoclast activity. CONCLUSIONS The obtained results can be relevant to better understand the molecular mechanism of bone regeneration.
Collapse
Affiliation(s)
- Vincenzo Sollazzo
- Orthopedic Clinic, University of Ferrara, Corso Giovecca 203, 44100 Ferrara, Italy
| | | | | | | | | |
Collapse
|
16
|
Falcón-Ramírez E, Casas-Avila L, Miranda A, Diez P, Castro C, Rubio J, Gómez R, Valdés-Flores M. Sp1 polymorphism in collagen I α1 gene is associated with osteoporosis in lumbar spine of Mexican women. Mol Biol Rep 2010; 38:2987-92. [PMID: 20146006 DOI: 10.1007/s11033-010-9963-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2009] [Accepted: 01/15/2010] [Indexed: 10/19/2022]
Abstract
The Sp1 binding site polymorphism in collagen type I alpha 1 gene (COLIA1) has been associated with osteoporosis (OP) and bone mineral density (BMD). The aim of this study was to explore the association of this polymorphism with OP and BMD in the Mexican population by polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP) procedure. Allelic and genotypic frequencies from the Sp1 polymorphism were determined in 100 women with OP, 100 women without OP and 500 subjects from general Mexican population (GMP). Distribution of Sp1 polymorphism was in Hardy-Weinberg equilibrium. In spite of population structure due to racial mix in Mexican population, associations with OP were demonstrated. The frequency of "s" allele was significantly higher in women with OP (35%) than in women without OP (11%; P < 0.00001). Interestingly, "ss" genotype, was exclusive of women with OP and was associated with low BMD (0.588 ± 0.077 g/cm(2)) in contrast to "SS" genotype (0.733 ± 0.039 g/cm(2); P = 0.0001). This work confirms the association of Sp1 polymorphism with low BMD and OP in Mexican population and make sure to use Sp1 as a genetic marker for OP in our population.
Collapse
Affiliation(s)
- Edith Falcón-Ramírez
- Department of Genetics, National Rehabilitation Institute, Calzada Mexico-Xochimilco No. 289, Arenal de Guadalupe, Tlalpan, CP 14389 Mexico City, Mexico.
| | | | | | | | | | | | | | | |
Collapse
|
17
|
te Winkel ML, van Beek RD, de Muinck Keizer-Schrama SMPF, Uitterlinden AG, Hop WCJ, Pieters R, van den Heuvel-Eibrink MM. Pharmacogenetic risk factors for altered bone mineral density and body composition in pediatric acute lymphoblastic leukemia. Haematologica 2009; 95:752-9. [PMID: 20015871 DOI: 10.3324/haematol.2009.016303] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND This study investigates pharmacogenetic risk factors for bone mineral (apparent) density (BM(A)D) and body composition in pediatric acute lymphoblastic leukemia DESIGN AND METHODS We determined the influence of SNPs in 4 genes (vitamin-D receptor (VDR: BsmI/ApaI/TaqI and Cdx-2/GATA), collagen type I alpha 1 (SpI), estrogen receptor 1 (ESR1: PvuII/XbaI), glucocorticoid receptor (BclI)) on body composition, BM(A)D and fracture risk during dexamethasone-based pediatric acute lymphoblastic leukemia treatment. Body composition and BMD were measured repeatedly during and after treatment using dual energy X-ray absorptiometry. RESULTS Non-carriers of VDR 5'-end (Cdx-2/GATA) haplotype 3 revealed a significant larger fat gain than carriers (Delta%fat: non-carriers: +1.76SDS, carriers: +0.77SDS, P<0.001). At diagnosis and during therapy, lumbar spine BMD was significantly higher in non-carriers of VDR 5'-end (Cdx-2/GATA) haplotype 3 than in carriers. The other SNPs did not influence BMD or fracture risk during/after treatment. The year after treatment completion, lean body mass increased in non-carriers of ESR1 (PvuII/XbaI) haplotype 3 and decreased in carriers (Delta lean body mass: non-carriers:+0.28SDS, carriers: -0.55SDS, P<0.01). CONCLUSIONS Only VDR 5'-end (Cdx-2/GATA) haplotype 3 was identified as protective factor against excessive fat gain and as a risk factor for lower lumbar spine BMD during treatment. Carrying ESR1 (PvuII/XbaI) haplotype 3 negatively influenced recovery of lean body mass after pediatric acute lymphoblastic leukemia treatment.
Collapse
Affiliation(s)
- Mariël L te Winkel
- Department of Pediatric Oncology/Hematology, Erasmus MC, Sophia Children's Hospital, 3015 GJ Rotterdam, the Netherlands
| | | | | | | | | | | | | |
Collapse
|
18
|
Does COLIA1 SP1-binding site polymorphism predispose women to pelvic organ prolapse? Int Urogynecol J 2009; 20:1061-5. [PMID: 19655227 DOI: 10.1007/s00192-009-0895-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2008] [Accepted: 04/11/2009] [Indexed: 01/24/2023]
Abstract
INTRODUCTION AND HYPOTHESIS COLIA1 polymorphism is associated with increased risk for stress urinary incontinence. We hypothesize that a similar association exists with pelvic organ prolapse (POP). METHODS Patients with advanced prolapse and healthy controls were evaluated by interview, validated questionnaires, and pelvic examination. DNA was extracted from peripheral blood, and polymerase chain reaction was performed to determine the presence or absence of the polymorphism. Power calculation indicated the need for 36 patients in each arm. RESULTS The prevalence of the polymorphic heterozygous genotype (GT) in the study and control groups was 33.3% and 19.4%, respectively, leading to an odds ratio of 1.75. This difference, however, did not reach statistical significance (p = 0.27). CONCLUSIONS The COLIA1 polymorphism was not significantly associated with increased risk for POP.
Collapse
|
19
|
Xiong Q, Jiao Y, Hasty KA, Canale ST, Stuart JM, Beamer WG, Deng HW, Baylink D, Gu W. Quantitative trait loci, genes, and polymorphisms that regulate bone mineral density in mouse. Genomics 2009; 93:401-14. [PMID: 19150398 DOI: 10.1016/j.ygeno.2008.12.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2008] [Revised: 11/26/2008] [Accepted: 12/15/2008] [Indexed: 01/23/2023]
Abstract
This is an in silico analysis of data available from genome-wide scans. Through analysis of QTL, genes and polymorphisms that regulate BMD, we identified 82 BMD QTL, 191 BMD-associated (BMDA) genes, and 83 genes containing known BMD-associated polymorphisms (BMDAP). The catalogue of all BMDA/BMDAP genes and relevant literatures are provided. In total, there are substantially more BMDA/BMDAP genes in regions of the genome where QTL have been identified than in non-QTL regions. Among 191 BMDA genes and 83 BMDAP genes, 133 and 58 are localized in QTL regions, respectively. The difference was still noticeable for the chromosome distribution of these genes between QTL and non-QTL regions. These results have allowed us to generate an integrative profile of QTL, genes, polymorphisms that determine BMD. These data could facilitate more rapid and comprehensive identification of causal genes underlying the determination of BMD in mouse and provide new insights into how BMD is regulated in humans.
Collapse
Affiliation(s)
- Qing Xiong
- Department of Orthopaedic Surgery - Campbell Clinic and Pathology, University of Tennessee Health Science Center, Memphis, TN 38163, USA.
| | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Zemel B, Bass S, Binkley T, Ducher G, Macdonald H, McKay H, Moyer-Mileur L, Shepherd J, Specker B, Ward K, Hans D. Peripheral quantitative computed tomography in children and adolescents: the 2007 ISCD Pediatric Official Positions. J Clin Densitom 2008; 11:59-74. [PMID: 18442753 DOI: 10.1016/j.jocd.2007.12.006] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2007] [Accepted: 12/05/2007] [Indexed: 11/22/2022]
Abstract
Peripheral quantitative computed tomography (pQCT) has mainly been used as a research tool in children. To evaluate the clinical utility of pQCT and formulate recommendations for its use in children, the International Society of Clinical Densitometry (ISCD) convened a task force to review the literature and propose areas of consensus and future research. The types of pQCT technology available, the clinical application of pQCT for bone health assessment in children, the important elements to be included in a pQCT report, and quality control monitoring techniques were evaluated. The review revealed a lack of standardization of pQCT techniques, and a paucity of data regarding differences between pQCT manufacturers, models and software versions and their impact in pediatric assessment. Measurement sites varied across studies. Adequate reference data, a critical element for interpretation of pQCT results, were entirely lacking, although some comparative data on healthy children were available. The elements of the pQCT clinical report and quality control procedures are similar to those recommended for dual-energy X-ray absorptiometry. Future research is needed to establish evidence-based criteria for the selection of the measurement site, scan acquisition and analysis parameters, and outcome measures. Reference data that sufficiently characterize the normal range of variability in the population also need to be established.
Collapse
Affiliation(s)
- Babette Zemel
- The Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA 19104-4399, USA.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Bibliography. Current world literature. Parathyroids, bone and mineral metabolism. Curr Opin Endocrinol Diabetes Obes 2007; 14:494-501. [PMID: 17982358 DOI: 10.1097/med.0b013e3282f315ef] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
22
|
Hale LV, Galvin RJS, Risteli J, Ma YL, Harvey AK, Yang X, Cain RL, Zeng Q, Frolik CA, Sato M, Schmidt AL, Geiser AG. PINP: a serum biomarker of bone formation in the rat. Bone 2007; 40:1103-9. [PMID: 17258520 DOI: 10.1016/j.bone.2006.11.027] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2006] [Revised: 11/21/2006] [Accepted: 11/30/2006] [Indexed: 11/28/2022]
Abstract
Serum PINP has emerged as a reliable marker of bone turnover in humans and is routinely used to monitor bone formation. However, the effects of PTH (1-34) on bone turnover have not been evaluated following short-term treatment. We present data demonstrating that PINP is an early serum biomarker in the rat for assessing bone anabolic activity in response to treatment with PTH (1-38). Rat serum PINP levels were found to increase following as few as 6 days of treatment with PTH (1-38) and these increases paralleled expression of genes associated with bone formation, as well as, later increases in BMD. Additionally, PINP levels were unaffected by treatment with an antiresorptive bisphosphonate. PINP may be used to detect PTH-induced early bone formation in the rat and may be more generally applicable for preclinical testing of potential bone anabolic drugs.
Collapse
Affiliation(s)
- L V Hale
- Lilly Research Laboratories, Eli Lilly and Company, Lilly Corporate Center, Indianapolis, IN 46285, USA.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|