Bone mineral density in adults with Down syndrome

This study analyzed data of bone mineral density (BMD) from a large cohort of adults with Down syndrome (DS). BMD was found to decrease with age more rapidly in these subjects than in the general population, exposing adults with DS to an increased risk of osteoporosis and bone fracture.IntroductionDown syndrome (DS) in adulthood presents with a high prevalence of osteoporosis. However, in DS, bone mineral density (BMD) can be underestimated due to short stature. Furthermore, the rate of age-related decline in BMD and its association with gender in DS has been rarely evaluated or compared with the general population. The present study is aimed at assessing the variation of BMD with age and gender in a sample of adults with DS and to compare these data with those of the general population, after adjusting for anthropometric differences.MethodsAdults with DS, aged 18 or older, were assessed dual-energy-X-ray-absorptiometry (DXA) at the femoral neck and at the lumbar spine. They were compared with the general population enrolled in the National Health and Nutrition Examination Survey (NHANES) 2009 –2010 dataset. Bone mineral apparent density (BMAD) was calculated for each individual.ResultsDXA was evaluated in 234 subjects with DS (mean age 36.93  ± 11.83 years, ranging from 20 to 69 years; 50.4% females). In the lumbar spine both mean BMD (DS 0.880 ± 0.141 vs. NHANES 1.062 ± 0.167,p 
Source: Osteoporosis International - Category: Orthopaedics Source Type: research

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AbstractThe aim of this study is to verify the effects of whole-body vibration (WBV) training on the muscle strength of children and adolescents with Down syndrome. We searched MEDLINE, Cochrane, SciELO, Lilacs and PUBMED databases and included manual searches to identify randomised controlled trials to investigate the effects of WBV on the structure and body function of children and adolescents with Down syndrome. Two reviewers independently selected the studies and performed statistical analysis. In total, five studies with 171 patients that compared WBV with exercise and/or control were included. Two studies demonstrate...
Source: Osteoporosis International - Category: Orthopaedics Source Type: research
Adults with Down syndrome (DS) represent a unique population who are in need of clinical guidelines to address their medical care. The United States Preventive Service Task Force (USPSTF) has developed criteria for prioritizing conditions of public health importance with the potential for providing screening recommendations to improve clinical care. The quality of existing evidence needed to inform clinical guidelines has not been previously reviewed. Using the National Library of Medicine (NLM) database PubMed, we first identified 18 peer reviewed articles that addressed co‐occurring medical conditions in adults with DS...
Source: American Journal of Medical Genetics Part A - Category: Genetics & Stem Cells Authors: Tags: RESEARCH REVIEW Source Type: research
Authors: García-Hoyos M, Riancho JA, Valero C Abstract Patients with Down syndrome have a number of risk factors that theoretically could predispose them to osteoporosis, such as early aging, development disorders, reduced physical activity, limited sun exposure, frequent comorbidities and use of drug therapies which could affect bone metabolism. In addition, the bone mass of these people may be affected by their anthropometric and body composition peculiarities. In general terms, studies in adults with Down syndrome reported that these people have lower areal bone mineral density (g/cm(2)) than the general ...
Source: Medicina Clinica - Category: General Medicine Tags: Med Clin (Barc) Source Type: research
This study shows that lifespan-extending conditions can slow molecular changes associated with an epigenetic clock in mice livers. Diverse interventions that extend mouse lifespan suppress shared age-associated epigenetic changes at critical gene regulatory regions Age-associated epigenetic changes are implicated in aging. Notably, age-associated DNA methylation changes comprise a so-called aging "clock", a robust biomarker of aging. However, while genetic, dietary and drug interventions can extend lifespan, their impact on the epigenome is uncharacterised. To fill this knowledge gap, we defined...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
ConclusionsAreal BMD is reduced in DS, but it seems to be related to the smaller body and skeletal size. In fact, the estimated volumetric BMD is similar in patients with DS and in control individuals. Furthermore, people with DS have normal bone microarchitecture.
Source: Osteoporosis International - Category: Orthopaedics Source Type: research
Dr. Dascha Weir, associate director, Boston Children’s Celiac Disease Program It may be difficult for parents to hear that their child has a chronic illness. When the diagnosis is celiac disease (CD), an autoimmune disorder caused by an intolerance to gluten, there is good news. CD is treatable by changes in diet. How it works: When food enters the stomach, it’s broken down into tiny digestible particles, which then travel through the small intestine. The small intestine is lined with villi — tiny finger-like projections that absorb nutrients from the food passing through. In celiac disease...
Source: Thrive, Children's Hospital Boston - Category: Pediatrics Authors: Tags: Diseases & Conditions celiac disease Dr. Dascha Weir gluten intolerance Source Type: news
Horm Metab Res DOI: 10.1055/s-0042-112127People with Down syndrome (DS) show lower bone mass density (BMD) and a higher prevalence of hypothyroidism compared to general population. Furthermore, DS is a well-known high oxidative stress (OS) condition because genes involved in OS map on chromosome 21. Thyroid function too is involved in OS. Since both thyroid function and OS lead to lower BMD and osteoporotic fractures, we have explored correlations among BMD, thyroid hormones, and parameters of OS in DS adults. A total of 105 DS patients (48 males; 21–71 years; mean BMI 28.88±7.12 kg/m2) were enrolled in...
Source: Hormone and Metabolic Research - Category: Endocrinology Authors: Tags: Endocrine Care Source Type: research
CONCLUSION: To the best of our knowledge, this is the first reported case of an association between moyamoya vasculopathy and LPI. While the question of association or coincidence cannot yet be answered, several pathophysiological consequences of LPI can be defined as separate, such as links between the impact of low arginine levels on the function of vascular endothelium and brain nitric oxide metabolism, as well as hemophagocytic syndrome associated with the risk of vasculitis, thus accounting for the development of moyamoya vasculopathy. PMID: 27321952 [PubMed - as supplied by publisher]
Source: European Journal of Paediatric Neurology - Category: Neurology Authors: Tags: Eur J Paediatr Neurol Source Type: research
Abstract BackgroundMany risk factors have been confirmed for poor bone health among the general population including age, gender and corticosteroid use. There is a paucity of investigation among people with intellectual disability; however, research points to differing risks namely anti‐epileptic medication use, Down syndrome and poor behaviour lifestyle. MethodsData was extracted from the Intellectual Disability Supplement to the Irish Longitudinal Study on Ageing in Ireland. In total, 753 participants took part, and data was gathered on participants' health status, behavioural health, health screenings and activities o...
Source: Journal of Intellectual Disability Research - Category: Disability Authors: Tags: Original manuscript Source Type: research
This study aims to determine the effects of 20 weeks of whole body vibration training (WBV) on bone mineral content (BMC), density (BMD), and structure variables in adolescents with Down syndrome (DS). Methods This randomized controlled trial of 25 adolescents (12–18 years) with DS (8 females) generated 2 non-equal groups, WBV group (n = 11) and CON group (n = 14). Using an efficacy analysis, the primary outcomes were BMC and BMD by dual-energy X-ray absorptiometry and the secondary were bone structure variables by peripheral quantitative c...
Source: Osteoporosis International - Category: Orthopaedics Source Type: research
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