1
|
Nelis C, Belin L, Tejedor I, Dulon J, Bachelot A, Chakhtoura Z. Bone mineral density: Comparison between women under hormone replacement therapy with Turner syndrome or idiopathic premature ovarian insufficiency. ANNALES D'ENDOCRINOLOGIE 2024:S0003-4266(24)00111-2. [PMID: 39111694 DOI: 10.1016/j.ando.2024.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 07/11/2024] [Accepted: 07/14/2024] [Indexed: 09/06/2024]
Abstract
CONTEXT Turner syndrome (TS) is characterized by short stature and premature ovarian insufficiency (POI). The main long-term complication of POI is osteoporosis, which can be prevented by hormone replacement therapy (HRT). OBJECTIVE The objective of our study was to compare initial bone mineral density (BMD) and progression between TS and idiopathic POI patients under HRT. METHODS A single-center retrospective study was conducted between 1998 and 2018. All women had undergone at least two bone densitometry assessments at least 2 years apart. RESULTS Sixty-eight TS patients and 67 idiopathic POI patients were included. Mean age at initial assessment was 27 years (IQR, 21-35.5 years) in TS patients and 31.5 years (IQR, 23-37 years) in idiopathic POI patients (P=0.1). Lumbar and femoral neck BMD were lower in the TS group than in the idiopathic POI group (respectively 0.89g/cm2 versus 0.95g/cm2, P=0.03; 0.70g/cm2 versus 0.77g/cm2, P<0.0001). Mosaic karyotype was associated with better BMD in TS patients while history of growth hormone treatment had no impact on BMD. Over time, a significant gain in vertebral BMD was observed in TS patients versus a loss of BMD in idiopathic POI patients (P=0.0009). CONCLUSION TS patients had a lower BMD at baseline than idiopathic POI patients, at both spinal and femoral levels. Over time, on HRT, a significant gain in vertebral BMD was observed in patients with TS, compared with a loss of BMD in patients with idiopathic POI. We hypothesized that earlier initiation and longer duration of HRT played an important role in this finding. Long-term prospective follow-up to assess the incidence of fractures in TS would be useful.
Collapse
Affiliation(s)
- Charlotte Nelis
- Service d'endocrinologie et médecine de la reproduction, groupe hospitalo-universitaire La Pitié-Salpêtrière-Charles Foix, 47-83, boulevard de l'Hôpital, 75013 Paris, France
| | - Lisa Belin
- Institut Pierre-Louis d'épidémiologie et de Santé publique, Sorbonne université, Inserm, 184, rue du Faubourg Saint-Antoine, 75012 Paris, France; Département biostatistique Santé publique et information médicale, groupe hospitalo-universitaire La Pitié-Salpêtrière-Charles Foix, 47-83, boulevard de l'Hôpital, 75013 Paris, France
| | - Isabelle Tejedor
- Service d'endocrinologie et médecine de la reproduction, groupe hospitalo-universitaire La Pitié-Salpêtrière-Charles Foix, 47-83, boulevard de l'Hôpital, 75013 Paris, France
| | - Jerome Dulon
- Service d'endocrinologie et médecine de la reproduction, groupe hospitalo-universitaire La Pitié-Salpêtrière-Charles Foix, 47-83, boulevard de l'Hôpital, 75013 Paris, France
| | - Anne Bachelot
- Service d'endocrinologie et médecine de la reproduction, groupe hospitalo-universitaire La Pitié-Salpêtrière-Charles Foix, 47-83, boulevard de l'Hôpital, 75013 Paris, France; Sorbonne université, 4, place Jussieu, 75005 Paris, France
| | - Zeina Chakhtoura
- Service d'endocrinologie et médecine de la reproduction, groupe hospitalo-universitaire La Pitié-Salpêtrière-Charles Foix, 47-83, boulevard de l'Hôpital, 75013 Paris, France.
| |
Collapse
|
2
|
Ebeling PR, Nguyen HH, Aleksova J, Vincent AJ, Wong P, Milat F. Secondary Osteoporosis. Endocr Rev 2022; 43:240-313. [PMID: 34476488 DOI: 10.1210/endrev/bnab028] [Citation(s) in RCA: 100] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Indexed: 02/07/2023]
Abstract
Osteoporosis is a global public health problem, with fractures contributing to significant morbidity and mortality. Although postmenopausal osteoporosis is most common, up to 30% of postmenopausal women, > 50% of premenopausal women, and between 50% and 80% of men have secondary osteoporosis. Exclusion of secondary causes is important, as treatment of such patients often commences by treating the underlying condition. These are varied but often neglected, ranging from endocrine to chronic inflammatory and genetic conditions. General screening is recommended for all patients with osteoporosis, with advanced investigations reserved for premenopausal women and men aged < 50 years, for older patients in whom classical risk factors for osteoporosis are absent, and for all patients with the lowest bone mass (Z-score ≤ -2). The response of secondary osteoporosis to conventional anti-osteoporosis therapy may be inadequate if the underlying condition is unrecognized and untreated. Bone densitometry, using dual-energy x-ray absorptiometry, may underestimate fracture risk in some chronic diseases, including glucocorticoid-induced osteoporosis, type 2 diabetes, and obesity, and may overestimate fracture risk in others (eg, Turner syndrome). FRAX and trabecular bone score may provide additional information regarding fracture risk in secondary osteoporosis, but their use is limited to adults aged ≥ 40 years and ≥ 50 years, respectively. In addition, FRAX requires adjustment in some chronic conditions, such as glucocorticoid use, type 2 diabetes, and HIV. In most conditions, evidence for antiresorptive or anabolic therapy is limited to increases in bone mass. Current osteoporosis management guidelines also neglect secondary osteoporosis and these existing evidence gaps are discussed.
Collapse
Affiliation(s)
- Peter R Ebeling
- Department of Medicine, School of Clinical Sciences, Monash University, Clayton, Victoria 3168, Australia.,Department of Endocrinology, Monash Health, Clayton, Victoria 3168, Australia
| | - Hanh H Nguyen
- Department of Medicine, School of Clinical Sciences, Monash University, Clayton, Victoria 3168, Australia.,Department of Endocrinology, Monash Health, Clayton, Victoria 3168, Australia.,Department of Endocrinology and Diabetes, Western Health, Victoria 3011, Australia
| | - Jasna Aleksova
- Department of Endocrinology, Monash Health, Clayton, Victoria 3168, Australia.,Hudson Institute of Medical Research, Clayton, Victoria 3168, Australia
| | - Amanda J Vincent
- Department of Endocrinology, Monash Health, Clayton, Victoria 3168, Australia.,Monash Centre for Health Research and Implementation, School of Public Health and Preventative Medicine, Monash University, Clayton, Victoria 3168, Australia
| | - Phillip Wong
- Department of Medicine, School of Clinical Sciences, Monash University, Clayton, Victoria 3168, Australia.,Department of Endocrinology, Monash Health, Clayton, Victoria 3168, Australia.,Hudson Institute of Medical Research, Clayton, Victoria 3168, Australia
| | - Frances Milat
- Department of Medicine, School of Clinical Sciences, Monash University, Clayton, Victoria 3168, Australia.,Department of Endocrinology, Monash Health, Clayton, Victoria 3168, Australia.,Hudson Institute of Medical Research, Clayton, Victoria 3168, Australia
| |
Collapse
|
3
|
Ikegawa K, Hasegawa Y. Fracture risk, underlying pathophysiology, and bone quality assessment in patients with Turner syndrome. Front Endocrinol (Lausanne) 2022; 13:967857. [PMID: 36325455 PMCID: PMC9618639 DOI: 10.3389/fendo.2022.967857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 09/29/2022] [Indexed: 11/27/2022] Open
Abstract
Turner syndrome (TS), the most common type of X chromosomal disorder, has various, clinical manifestations. Among these, primary hypogonadism, which may lead to osteoporosis, is a life-long health issue. A high prevalence of fractures associated with osteoporosis is a major problem in patients with TS, where it may be 1.4-2.2 times higher than in healthy individuals and increases with age. Among the risk factors associated with fractures in TS, hypogonadism is arguably the most important. Estrogen deficiency due to hypogonadism leads to low bone mineral density (BMD), resulting in a high prevalence of bone fractures. Estrogen replacement therapy (ERT) in patients with TS reportedly improved their BMD. However, other causes of low BMD may exist, given that this condition begins in the prepubertal period in patients with TS. Most previous studies have reported low BMD in patients with TS using dual-energy X-ray absorptiometry (DXA), but this method has some limitations. Areal BMD values assessed by DXA were influenced by bone size and short stature, resulting in an underestimation of BMD. Currently, volumetric BMD values may be accurately obtained using peripheral quantitative computed tomography (pQCT). pQCT, high-resolution pQCT, and the trabecular bone score can also be used to evaluate bone quality, including bone geometry and microarchitecture, in TS. The present review discusses the high fracture risk, role of estrogen deficiency in low BMD, advantages and disadvantages of various bone assessment methods, and characteristics of bone quality in TS.
Collapse
Affiliation(s)
- Kento Ikegawa
- Division of Endocrinology and Metabolism, Tokyo Metropolitan Children’s Medical Center, Tokyo, Japan
- Clinical Research Support Center, Tokyo Metropolitan Children’s Medical Center, Tokyo, Japan
- *Correspondence: Kento Ikegawa,
| | - Yukihiro Hasegawa
- Division of Endocrinology and Metabolism, Tokyo Metropolitan Children’s Medical Center, Tokyo, Japan
- Department of Pediatrics, Keio University of School of Medicine, Tokyo, Japan
| |
Collapse
|
4
|
Nguyen HH, Milat F, Vincent AJ. New insights into the diagnosis and management of bone health in premature ovarian insufficiency. Climacteric 2021; 24:481-490. [PMID: 33955314 DOI: 10.1080/13697137.2021.1917539] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Premature ovarian insufficiency (POI), defined as a loss of ovarian function before the age of 40 years, is a life-changing diagnosis that has numerous long-term consequences. Musculoskeletal complications, including osteoporosis and fractures, are a key concern for women with POI. The risk of bone loss is influenced by the underlying etiology of POI, and the degree and duration of estrogen deficiency. A decline in muscle mass as a result of estrogen and androgen deficiency may contribute to skeletal fragility, but has not been examined in women with POI. This article aims to review musculoskeletal health in POI; summarize the traditional and novel modalities available to screen for skeletal fragility and muscle dysfunction; and provide updated evidence for available management strategies.
Collapse
Affiliation(s)
- H H Nguyen
- Department of Medicine, School of Clinical Sciences, Monash University, Clayton, VIC, Australia.,Department of Endocrinology, Monash Health, Clayton, VIC, Australia.,Department of Endocrinology and Diabetes, Western Health, St. Albans, VIC, Australia
| | - F Milat
- Department of Medicine, School of Clinical Sciences, Monash University, Clayton, VIC, Australia.,Department of Endocrinology, Monash Health, Clayton, VIC, Australia.,Metabolic Bone Research Group, Hudson Institute of Medical Research, Clayton, VIC, Australia
| | - A J Vincent
- Department of Endocrinology, Monash Health, Clayton, VIC, Australia.,Monash Centre for Health Research and Implementation, Monash University, Clayton, VIC, Australia
| |
Collapse
|
5
|
Chiarito M, Brunetti G, D'Amato G, Faienza MF. Monitoring and maintaining bone health in patients with Turner syndrome. Expert Rev Endocrinol Metab 2020; 15:431-438. [PMID: 33074770 DOI: 10.1080/17446651.2020.1834846] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 10/07/2020] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Subjects affected with Turner Syndrome (TS) suffer low bone mineral density and high risk of fracture from a young age. Estrogen deficiency is considered the main risk factor but other factors, such as intrinsic bone abnormalities, enhanced osteoclastogenesis, vitamin D deficiency and other comorbidities may contribute to the exalted bone fragility. AREAS COVERED The authors performed a literature search in PubMed and EMBASE, using selected key words. They focused their search on pathogenetic mechanisms of osteoporosis in TS and updated the diagnosis, prevention and therapeutic interventions. EXPERT OPINION Bone health is a concern in subjects with TS, and strategies to prevent osteoporosis and fractures should be considered from childhood. Advice on how to live a healthy lifestyle, including physical activity and correct nutrition, should be given during childhood in order to prevent bone impairment later in life. The screening for vitamin D deficiency should be performed between the ages of 9 and 11, and every 2-3 years thereafter. Early initiation of estrogen replacement therapy (ERT) between 11-12 years of age, prompt titration to the adult dose after 2 years, and long-term follow-up to guarantee compliance with ERT, are the key points of osteoporosis prevention in women with TS.
Collapse
Affiliation(s)
- Mariangela Chiarito
- Department of Biomedical Sciences and Human Oncology, University "A.Moro" , Bari, Italy
| | - Giacomina Brunetti
- Department of Basic Medical Sciences, Neuroscience and Sense Organs, Section of Human Anatomy and Histology, University "A. Moro" , Bari, Italy
| | - Gabriele D'Amato
- Department of Women's and Children's Health, ASL Bari, Neonatal Intensive Care Unit, Di Venere Hospital , Bari, Italy
| | - Maria Felicia Faienza
- Department of Biomedical Sciences and Human Oncology, University "A.Moro" , Bari, Italy
| |
Collapse
|
6
|
Añón Oñate I, Pérez Albaladejo L, Ferrer González MÁ, Cáliz Cáliz R. Madelung's deformity. REUMATOLOGIA CLINICA 2019; 15:e161-e162. [PMID: 29370989 DOI: 10.1016/j.reuma.2017.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 12/05/2017] [Accepted: 12/11/2017] [Indexed: 06/07/2023]
Affiliation(s)
- Isabel Añón Oñate
- Servicio de Reumatología, Hospital Universitario Virgen de las Nieves, Granada, España.
| | | | | | - Rafael Cáliz Cáliz
- Servicio de Reumatología, Hospital Universitario Virgen de las Nieves, Granada, España
| |
Collapse
|
7
|
Abstract
Turner syndrome is one of the most common sex chromosomal anomalies, characterized by the complete or partial loss of one X chromosome. Females with Turner syndrome are characterized by skeletal abnormalities, short stature and primary ovarian insufficiency. The aim of this narrative review was to identify the underlying mechanisms of osteoporosis in Turner syndrome, summarize its clinical manifestations and provide suggestions regarding the management of osteoporosis. Girls and women with Turner syndrome have lower bone mineral density and a higher fracture rate than healthy individuals. The most important risk factors for osteoporosis are inadequately treated primary ovarian insufficiency, followed by intrinsic bone abnormalities. Comorbidities that further increase the risk of osteoporosis include vitamin D deficiency, celiac disease and inflammatory bowel disease. In addition, hearing problems can predispose to falls. Early initiation of hormone replacement therapy (HRT) at the age of 11-13 years, prompt titration to the adult dose after 2 years and long-term follow-up to ensure compliance with HRT are the cornerstones of osteoporosis prevention in women with Turner syndrome.
Collapse
|
8
|
Allybocus ZA, Wang C, Shi H, Wu Q. Endocrinopathies and cardiopathies in patients with Turner syndrome. Climacteric 2018; 21:536-541. [PMID: 30380946 DOI: 10.1080/13697137.2018.1501674] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Z. A. Allybocus
- Center of Genetic and Prenatal Diagnosis, Department of Gynecology, The First Affiliated Hospital of Zhengzhou University, Henan Province, China
| | - C. Wang
- Center of Genetic and Prenatal Diagnosis, Department of Gynecology, The First Affiliated Hospital of Zhengzhou University, Henan Province, China
| | - Hr. Shi
- Center of Genetic and Prenatal Diagnosis, Department of Gynecology, The First Affiliated Hospital of Zhengzhou University, Henan Province, China
| | - Qh. Wu
- Center of Genetic and Prenatal Diagnosis, Department of Gynecology, The First Affiliated Hospital of Zhengzhou University, Henan Province, China
| |
Collapse
|
9
|
Stagi S, Di Tommaso M, Scalini P, Sandini E, Masoni F, Chiarelli F, Verrotti A, Giglio S, Romano S, de Martino M. Cross-sectional study shows that impaired bone mineral status and metabolism are found in nonmosaic triple X syndrome. Acta Paediatr 2017; 106:619-626. [PMID: 28090675 DOI: 10.1111/apa.13744] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 10/11/2016] [Accepted: 01/10/2017] [Indexed: 12/11/2022]
Abstract
AIM The effect of a supernumerary X chromosome on bones has not been reported, and this study evaluated bone mineral status and metabolism in nonmosaic triple X syndrome. METHODS This cross-sectional study comprised 19 girls, with a median age of 10.9 years, with nonmosaic triple X syndrome and a control group matched for age and body size. We studied ionised and total calcium, phosphate, parathyroid hormone (PTH), 25-hydroxyvitamin D (25(OH)D), 1,25-dihydroxyvitamin D, osteocalcin, bone alkaline phosphatase levels and urinary deoxypyridinoline concentrations. We also measured the phalangeal amplitude-dependent speed of sound (AD-SoS) and the bone transmission time (BTT) Z-scores. RESULTS Patients with nonmosaic triple X syndrome showed significantly reduced AD-SoS (p < 0.005) and BTT Z-scores (p < 0.0001) compared to the control group, and these results persisted when we divided the sample into prepubertal and pubertal patients (p < 0.05). These patients also had significantly reduced ionised calcium (p < 0.005) and 25(OH)D levels (p < 0.005) and higher phosphate (p < 0.0001) and PTH (p < 0.0001) levels. CONCLUSION Subjects with nonmosaic triple X syndrome exhibited a significant impairment in bone mineral status and metabolism similar to other X polisomy, such as Klinefelter's syndrome. This suggests the presence of a primary bone deficit and the need for regular and close monitoring of these subjects.
Collapse
Affiliation(s)
- Stefano Stagi
- Department of Health Sciences; University of Florence, Anna Meyer Children's University Hospital; Florence Italy
| | | | - Perla Scalini
- Department of Health Sciences; University of Florence, Anna Meyer Children's University Hospital; Florence Italy
| | - Elena Sandini
- Department of Health Sciences; University of Florence, Anna Meyer Children's University Hospital; Florence Italy
| | | | | | - Alberto Verrotti
- Department of Paediatrics; University of L'Aquila; L'Aquila Italy
| | - Sabrina Giglio
- Genetics and Molecular Medicine Unit; Anna Meyer Children's University Hospital; Florence Italy
| | - Silvia Romano
- Genetics and Molecular Medicine Unit; Anna Meyer Children's University Hospital; Florence Italy
| | - Maurizio de Martino
- Department of Health Sciences; University of Florence, Anna Meyer Children's University Hospital; Florence Italy
| |
Collapse
|
10
|
Krøigård AB, Frost M, Larsen MJ, Ousager LB, Frederiksen AL. Bone structure in two adult subjects with impaired minor spliceosome function resulting from RNU4ATAC mutations causing microcephalic osteodysplastic primordial dwarfism type 1 (MOPD1). Bone 2016; 92:145-149. [PMID: 27591150 DOI: 10.1016/j.bone.2016.08.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 08/22/2016] [Accepted: 08/30/2016] [Indexed: 11/18/2022]
Abstract
Microcephalic osteodysplastic primordial dwarfism type 1 (MOPD1), or Taybi-Linder syndrome is characterized by distinctive skeletal dysplasia, severe intrauterine and postnatal growth retardation, microcephaly, dysmorphic features, and neurological malformations. It is an autosomal recessive disorder caused by homozygous or compound heterozygous mutations in the RNU4ATAC gene resulting in impaired function of the minor spliceosome. Here, we present the first report on bone morphology, bone density and bone microstructure in two adult MOPD1 patients and applied radiographs, dual energy X-ray absorptiometry, high-resolution peripheral quantitative computed tomography and biochemical evaluation. The MOPD1 patients presented with short stature, low BMI but normal macroscopic bone configuration. Bone mineral density was low. Compared to Danish reference data, total bone area, cortical bone area, cortical thickness, total bone density, cortical bone density, trabecular bone density and trabecular bone volume per tissue volume (BV/TV) were all low. These findings may correlate to the short stature and low body weight of the MOPD1 patients. Our findings suggest that minor spliceosome malfunction may be associated with altered bone modelling.
Collapse
Affiliation(s)
| | - Morten Frost
- Dept. of Endocrinology, Odense University Hospital, Odense, Denmark
| | | | | | | |
Collapse
|
11
|
Stagi S, Cavalli L, Cavalli T, de Martino M, Brandi ML. Peripheral quantitative computed tomography (pQCT) for the assessment of bone strength in most of bone affecting conditions in developmental age: a review. Ital J Pediatr 2016; 42:88. [PMID: 27670687 PMCID: PMC5037897 DOI: 10.1186/s13052-016-0297-9] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 09/15/2016] [Indexed: 12/13/2022] Open
Abstract
Peripheral quantitative computed tomography provides an automatical scan analysis of trabecular and cortical bone compartments, calculating not only their bone mineral density (BMD), but also bone geometrical parameters, such as marrow and cortical Cross-Sectional Area (CSA), Cortical Thickness (CoTh), both periosteal and endosteal circumference, as well as biomechanical parameters like Cross-Sectional Moment of Inertia (CSMI), a measure of bending, polar moment of inertia, indicating bone strength in torsion, and Strength Strain Index (SSI). Also CSA of muscle and fat can be extracted. Muscles, which are thought to stimulate bones to adapt their geometry and mineral content, are determinant to preserve or increase bone strength; thus, pQCT provides an evaluation of the functional 'muscle-bone unit', defined as BMC/muscle CSA ratio. This functional approach to bone densitometry can establish if bone strength is normally adapted to the muscle force, and if muscle force is adequate for body size, providing more detailed insights to targeted strategies for the prevention and treatment of bone fragility. The present paper offers an extensive review of technical features of pQCT and its possible clinical application in the diagnostic of bone status as well as in the monitoring of the skeleton's health follow-up.
Collapse
Affiliation(s)
- Stefano Stagi
- Health Sciences Department, University of Florence, Anna Meyer Children’s University Hospital, viale Pieraccini 24, 50139 Florence, Italy
| | - Loredana Cavalli
- Department of Surgery and Translational Medicine, Endocrinology Unit, University of Florence, Florence, Italy
| | - Tiziana Cavalli
- Department of Surgery and Translational Medicine, Emergency and Digestive Surgery with Oncological and Functional Address Unit, University of Florence, Florence, Italy
| | - Maurizio de Martino
- Health Sciences Department, University of Florence, Anna Meyer Children’s University Hospital, viale Pieraccini 24, 50139 Florence, Italy
| | - Maria Luisa Brandi
- Department of Surgery and Translational Medicine, Endocrinology Unit, University of Florence, Florence, Italy
| |
Collapse
|
12
|
Frederiksen AL, Duno M, Johnsen IBG, Nielsen MF, Krøigård AB. Asymptomatic parental mosaicism for osteogenesis imperfecta associated with a new splice site mutation in COL1A2. Clin Case Rep 2016; 4:972-978. [PMID: 27761249 PMCID: PMC5054473 DOI: 10.1002/ccr3.658] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 05/26/2016] [Accepted: 07/11/2016] [Indexed: 12/05/2022] Open
Abstract
Recurrent lethal perinatal osteogenesis imperfecta may result from asymptomatic parental mosaicism. A previously unreported mutation in COL1A2 leads to recurrent cases of fetal osteogenesis imperfecta Sillence type IIA, which emphasizes the importance of clinical and genetic evaluation of mosaicism in asymptomatic parents as verified mosaicism highly increases recurrence risk.
Collapse
Affiliation(s)
- Anja Lisbeth Frederiksen
- Department of Clinical Genetics Odense University Hospital Odense Denmark; Department of Clinical Research, Faculty of Health University of Southern Denmark
| | - Morten Duno
- Department of Clinical Genetics University Hospital Copenhagen Copenhagen Denmark
| | - Iben B G Johnsen
- Department of Clinical Pathology Odense University Hospital Odense Denmark
| | | | - Anne Bruun Krøigård
- Department of Clinical Genetics Odense University Hospital Odense Denmark; Department of Clinical Pathology Odense University Hospital Odense Denmark
| |
Collapse
|
13
|
Faienza MF, Ventura A, Colucci S, Cavallo L, Grano M, Brunetti G. Bone Fragility in Turner Syndrome: Mechanisms and Prevention Strategies. Front Endocrinol (Lausanne) 2016; 7:34. [PMID: 27199891 PMCID: PMC4844601 DOI: 10.3389/fendo.2016.00034] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 04/11/2016] [Indexed: 01/18/2023] Open
Abstract
Bone fragility is recognized as one of the major comorbidities in Turner syndrome (TS). The mechanisms underlying bone impairment in affected patients are not clearly elucidated, but estrogen deficiency and X-chromosomal abnormalities represent important factors. Moreover, although many girls with TS undergo recombinant growth hormone therapy to treat short stature, the efficacy of this treatment on bone mineral density is controversial. The present review will focus on bone fragility in subjects with TS, providing an overview on the pathogenic mechanisms and some prevention strategies.
Collapse
Affiliation(s)
- Maria Felicia Faienza
- Pediatrics Unit, Department of Biomedical Sciences and Human Oncology, University of Bari “A. Moro”, Bari, Italy
| | - Annamaria Ventura
- Pediatrics Unit, Department of Biomedical Sciences and Human Oncology, University of Bari “A. Moro”, Bari, Italy
| | - Silvia Colucci
- Section of Human Anatomy and Histology, Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari “A. Moro”, Bari, Italy
| | - Luciano Cavallo
- Pediatrics Unit, Department of Biomedical Sciences and Human Oncology, University of Bari “A. Moro”, Bari, Italy
| | - Maria Grano
- Department of Emergency and Organ Transplantation (DETO), University of Bari “A. Moro”, Bari, Italy
| | - Giacomina Brunetti
- Section of Human Anatomy and Histology, Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari “A. Moro”, Bari, Italy
- *Correspondence: Giacomina Brunetti,
| |
Collapse
|