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Bone mineral density and oxidative stress in adolescent girls with anorexia nervosa. Eur J Pediatr 2022; 181:311-321. [PMID: 34292351 DOI: 10.1007/s00431-021-04199-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 07/01/2021] [Accepted: 07/06/2021] [Indexed: 10/20/2022]
Abstract
Oxidative stress appears to be involved in the pathogenesis of osteoporosis-a serious complication of anorexia nervosa (AN). We evaluated the oxidative status in adolescent girls with AN and its potential relationship with bone mineral density (BMD). Girls with AN (n = 43) and age-matched healthy controls (n = 20) underwent anthropometric and BMD examination. Markers of bone turnover, oxidative stress, and antioxidant status were measured. Participants with AN and controls did not differ in BMD at the lumbar spine (p = 0.17) and total body less head BMD (p = 0.08). BMD at the total hip was lower (p < 0.001) in the AN group compared with the controls. Levels of antioxidant status markers-ferric reduction antioxidant power, total antioxidant capacity, and reduced and oxidized glutathione ratio (all p < 0.001)-were significantly lower, whereas those of advanced oxidation protein products (AOPP), fructosamines, and advanced glycation end products (AGEs) (all p < 0.001) were higher in AN patients than in healthy controls. BMD and bone turnover markers were positively correlated with antioxidant status markers, while they were negatively correlated with AOPP, fructosamines, and AGEs levels. Conclusion: This is the first study to assess a potential association between oxidative status and BMD in adolescents with AN. We demonstrated that in young girls, the imbalance of oxidative status and reduced BMD are concurrently manifested at the time of the diagnosis of AN. Disturbance of oxidative status could play a pathogenetic role in AN-associated decreased BMD. What is Known: • Osteoporosis is a serious complication of AN, and in affected adolescents may result in a permanent deficit in bone mass. • Oxidative and carbonyl stress may be involved in the development of bone loss. What is New: • Adolescents girls with AN have impaired antioxidant defense and increased oxidative damage to biomolecules. • Disturbance of oxidative status could affect bone loss and could contribute to decreased BMD in adolescent females with AN.
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Pehlivanturk-Kizilkan M, Akgul S, Derman O, Kanbur N. Predictors of bone mineral density in adolescents with atypical anorexia nervosa. J Bone Miner Metab 2021; 39:678-683. [PMID: 33712977 DOI: 10.1007/s00774-021-01211-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 01/31/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION We aimed to evaluate the bone mineral density (BMD) z scores of adolescents with atypical anorexia nervosa (AAN) and investigate the potential predictors of low BMD risk. MATERIALS AND METHODS Potential factors that might have an effect on the femoral neck and lumbar spine dual energy X-ray absorptiometry data of adolescents (11-18 years) with AAN were retrospectively evaluated. RESULTS Among adolescents with AAN, 13 (34.2%) had a z score lower than - 1 and 25 (65.8%) had a z score equal or greater than - 1. When adolescents with a BMD score lower and higher than - 1 were compared, normal BMD group had a significantly higher mean lifetime maximum BMI (p = 0.0035). Similarly previous overweight history was significantly higher in the normal BMD group (p = 0.005). A positive correlation was found between femoral neck (p = 0.002, r: 0.546) and lumbar spine (p: 0.002, r: 0.505) z scores and lifetime maximum BMI. There was also a positive correlation between lumbar spine BMD scores and BMI at admission (p = 0.001, r: 0.540). Lumbar spine z scores and amenorrhea duration were negatively correlated (p: 0.002, r: - 10.867). CONCLUSION In the adolescent period similar to AN, AAN cases are also at risk for disordered bone health. In adolescents with AAN, BMI prior to the illness was estimated to be the significant parameter for the risk of low BMD. Special attention should be paid to the bone health of adolescents with AAN, especially for those who do not have a previous overweight history.
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Affiliation(s)
- Melis Pehlivanturk-Kizilkan
- Department of Pediatrics, Division of Adolescent Medicine, Hacettepe University Ihsan Dogramaci Children's Hospital, Ankara, Turkey.
| | - Sinem Akgul
- Department of Pediatrics, Division of Adolescent Medicine, Hacettepe University Ihsan Dogramaci Children's Hospital, Ankara, Turkey
| | - Orhan Derman
- Department of Pediatrics, Division of Adolescent Medicine, Hacettepe University Ihsan Dogramaci Children's Hospital, Ankara, Turkey
| | - Nuray Kanbur
- Department of Pediatrics, Division of Adolescent Medicine, Hacettepe University Ihsan Dogramaci Children's Hospital, Ankara, Turkey
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İnan-Erdoğan I, Akgül S, Işgın-Atıcı K, Tuğrul-Yücel T, Boduroğlu K, Derman O, Kanbur N. Effects of vitamin D and estrogen receptor polymorphisms on bone mineral density in adolescents with anorexia nervosa. J Pediatr Endocrinol Metab 2019; 32:1377-1384. [PMID: 31714887 DOI: 10.1515/jpem-2019-0240] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 09/02/2019] [Indexed: 11/15/2022]
Abstract
Background Anorexia nervosa (AN) is a serious eating disorder that is associated with decreased bone mineral density (BMD) and greater lifetime risk for fractures. The aim of this study was to determine the correlation between BMD and genetic polymorphisms in AN. Methods This case-control study analyzed vitamin D receptor (VDR) (VDRBsml, VDRFokl) and estrogen receptor (ESR) (ESR1Xbal, ESR1Pvull) polymorphisms in 45 adolescents diagnosed with AN and 46 age-matched healthy controls. BMD values of the AN group were classified as low or normal, and polymorphisms were compared between cases and controls. The effects of body mass index (BMI), duration of disease and amenorrhea on BMD were also evaluated. Results In girls with AN, a positive effect of the bb genotype of VDRBsmI polymorphism on femur Z-scores (p = 0.103) and of the Ff genotype of VDRFokI polymorphism on vertebra Z-scores (p = 0.097) was observed. In boys with AN, a positive effect of the Ff genotype of VDRFokI polymorphism on vertebra BMD (g/cm2) was detected (p = 0.061). No association was detected between ESR polymorphisms. An inverse relationship was observed between BMD and duration of illness and amenorrhea. A direct relationship was detected between BMD and BMI. Conclusions Specific VDR gene polymorphism genotypes may have positive effects on BMD in patients with AN. Additionally, the lack of association between ESR gene polymorphisms on BMD could be attributed to the low estrogen status of the patient.
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Affiliation(s)
- Işıl İnan-Erdoğan
- Hacettepe University Faculty of Medicine, İhsan Doğramacı Children's Hospital, Department of Pediatrics, Ankara, Turkey
| | - Sinem Akgül
- Hacettepe University Faculty of Medicine, İhsan Doğramacı Children's Hospital, Department of Pediatrics, Division of Adolescent Medicine, Ankara, Turkey
| | - Kübra Işgın-Atıcı
- Hacettepe University, Department of Nutrition and Dietetics, Ankara, Turkey
| | - Tuğba Tuğrul-Yücel
- Hacettepe University Faculty of Medicine, İhsan Doğramacı Children's Hospital, Department of Pediatrics, Division of Pediatric Genetics, Ankara, Turkey
| | - Koray Boduroğlu
- Hacettepe University Faculty of Medicine, İhsan Doğramacı Children's Hospital, Department of Pediatrics, Division of Pediatric Genetics, Ankara, Turkey
| | - Orhan Derman
- Hacettepe University Faculty of Medicine, İhsan Doğramacı Children's Hospital, Department of Pediatrics, Division of Adolescent Medicine, Ankara, Turkey
| | - Nuray Kanbur
- Hacettepe University Faculty of Medicine, İhsan Doğramacı Children's Hospital, Department of Pediatrics, Division of Adolescent Medicine, Ankara, Turkey
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Kandemir N, Slattery M, Ackerman KE, Tulsiani S, Bose A, Singhal V, Baskaran C, Ebrahimi S, Goldstein M, Eddy K, Klibanski A, Misra M. Bone Parameters in Anorexia Nervosa and Athletic Amenorrhea: Comparison of Two Hypothalamic Amenorrhea States. J Clin Endocrinol Metab 2018; 103:2392-2402. [PMID: 29659886 PMCID: PMC6456997 DOI: 10.1210/jc.2018-00338] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Accepted: 04/02/2018] [Indexed: 11/19/2022]
Abstract
OBJECTIVE We have reported low bone mineral density (BMD), impaired bone structure, and increased fracture risk in participants with anorexia nervosa (AN) and normal-weight oligoamenorrheic athletes (OAs). However, data directly comparing compartment-specific bone parameters in participants with AN, OAs, and controls are lacking. DESIGN A total of 468 female participants 14 to 21.9 years old were included: 269 with AN, 104 OAs, and 95 normal-weight eumenorrheic controls. Dual-energy x-ray absorptiometry was used to assess areal BMD (aBMD) of the whole body less head (WBLH), spine, and hip. High-resolution peripheral quantitative computed tomography was used to assess volumetric BMD (vBMD), bone geometry, and structure at the non-weight-bearing distal radius and weight-bearing distal tibia. RESULTS Participants with AN had lower WBLH and hip aBMD z scores than OAs and controls (P < 0.0001). Participants with AN and OAs had lower spine aBMD z scores than controls (P < 0.01). At the radius, total and cortical vBMD, percentage cortical area, and thickness were lower in the AN and OA groups than in controls (P ≤ 0.04); trabecular vBMD was lower in participants with AN than controls. At the tibia, participants with AN had lower measures for most parameters compared with OAs and controls (P < 0.05); OAs had lower cortical vBMD than controls (P = 0.002). Participants with AN and OAs had higher fracture rates than controls. Stress fracture prevalence was highest in OAs (P < 0.0001); nonstress fracture prevalence was highest in participants with AN (P < 0.05). CONCLUSION AN is deleterious to bone at all sites and both bone compartments. A high stress fracture rate in OAs, who have comparable WBLH and hip aBMD measures to controls, indicates that BMD in these women may need to be even higher to avoid fractures.
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Affiliation(s)
- Nurgun Kandemir
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Pediatric Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Meghan Slattery
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Kathryn E Ackerman
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Divisions of Sports Medicine and Endocrinology, Boston Children’s Hospital, Boston, Massachusetts
| | - Shreya Tulsiani
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Amita Bose
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Vibha Singhal
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Pediatric Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Charumathi Baskaran
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Pediatric Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Seda Ebrahimi
- Center of Eating Disorders Management, Cambridge, Massachusetts
| | - Mark Goldstein
- Division of Adolescent Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Kamryn Eddy
- Eating Disorders Clinical and Research Program, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Anne Klibanski
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Madhusmita Misra
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Pediatric Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Correspondence and Reprint Requests: Madhusmita Misra, MD, MPH, Massachusetts General Hospital, BUL 457 B, 55 Fruit Street, Boston, Massachusetts 02114. E-mail:
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Bone mineral density in anorexia nervosa: Only weight and menses recovery? ACTA ACUST UNITED AC 2016; 63:458-465. [DOI: 10.1016/j.endonu.2016.06.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 06/18/2016] [Accepted: 06/24/2016] [Indexed: 11/22/2022]
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Levy-Shraga Y, David D, Vered I, Kochavi B, Stein D, Modan-Moses D. Hyponatremia and decreased bone density in adolescent inpatients diagnosed with anorexia nervosa. Nutrition 2016; 32:1097-102. [DOI: 10.1016/j.nut.2016.03.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Revised: 03/09/2016] [Accepted: 03/15/2016] [Indexed: 11/24/2022]
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Misra M, Golden NH, Katzman DK. State of the art systematic review of bone disease in anorexia nervosa. Int J Eat Disord 2016; 49:276-92. [PMID: 26311400 PMCID: PMC4769683 DOI: 10.1002/eat.22451] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/23/2015] [Indexed: 01/05/2023]
Abstract
OBJECTIVE Low bone mineral density (BMD) is a known consequence of anorexia nervosa (AN) and is particularly concerning during adolescence, a critical time for bone accrual. A comprehensive synthesis of available data regarding impaired bone health, its determinants, and associated management strategies in AN is currently lacking. This systematic review aims to synthesize information from key physiologic and prospective studies and trials, and provide a thorough understanding of impaired bone health in AN and its management. METHOD Search terms included "anorexia nervosa" AND "bone density" for the period 1995-2015, limited to articles in English. Papers were screened manually based on journal impact factor, sample size, age of participants, and inclusion of a control group. When necessary, we included seminal papers published before 1995. RESULTS AN leads to low BMD, impaired bone quality and increased fracture risk. Important determinants are low lean mass, hypogonadism, IGF-1 deficiency, and alterations in other hormones that impact bone health. Weight gain and menses restoration are critical for improving bone outcomes in AN. Physiologic estrogen replacement as the transdermal patch was shown to increase bone accrual in one study in adolescent females with AN; however, residual deficits persist. Bisphosphonates are potentially useful in adults with AN. DISCUSSION To date, evidence suggests that the safest and most effective strategy to improve bone health in AN is normalization of weight with restoration of menses. Pharmacotherapies that show promise include physiologic estradiol replacement (as the transdermal estradiol patch), and in adults, bisphosphonates. Further studies are necessary to determine the best strategies to normalize BMD in AN.
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Affiliation(s)
- Madhusmita Misra
- Division of Pediatric Endocrinology and the Neuroendocrine Unit, Massachusetts General Hospital, Boston, Massachusetts,Correspondence to: Madhusmita Misra, MD, MPH, Division of Pediatric Endocrinology and the Neuroendocrine Unit, Massachusetts General Hospital, Boston, Massachusetts.
| | - Neville H. Golden
- Division of Adolescent Medicine, Stanford University School of Medicine, Palo Alto, California
| | - Debra K. Katzman
- Division of Adolescent Medicine, Hospital for Sick Children and University of Toronto, Toronto, Canada
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Misra M, Klibanski A. Anorexia Nervosa and Its Associated Endocrinopathy in Young People. Horm Res Paediatr 2016; 85:147-57. [PMID: 26863308 PMCID: PMC4792745 DOI: 10.1159/000443735] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 01/04/2016] [Indexed: 12/23/2022] Open
Abstract
Anorexia nervosa (AN) is a condition of severe undernutrition associated with adaptive changes in many endocrine axes. These changes include hypogonadotropic hypogonadism, acquired growth hormone resistance with low insulin-like growth factor 1 (IGF-1) levels, hypercortisolemia, altered secretion of adipokines and appetite-regulating hormones, and low bone mineral density (BMD). Bone health is impaired subsequent to a low body mass index, decreased lean mass, and the endocrine changes described above. In addition to low areal BMD, AN is characterized by a decrease in volumetric BMD, changes in bone geometry, and reductions in strength estimates, leading to an increased risk for fracture. Weight restoration is essential for restoration of normal endocrine function; however, hypercortisolemia, high peptide YY levels, and ghrelin dynamics may not completely normalize. In some patients, hypogonadotropic hypogonadism persists despite weight restoration. Weight gain and menstrual recovery are critical for improving bone health in AN; however, residual deficits may persist. Physiologic estrogen replacement using transdermal, but not oral, estrogen increases bone accrual in adolescents with AN, while bisphosphonates improve BMD in adults. Recombinant human IGF-1 and teriparatide have been used in a few studies as bone anabolic therapies. More data are necessary to determine the optimal therapeutic strategies for low BMD in AN.
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Affiliation(s)
- Madhusmita Misra
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114,Pediatric Endocrine Unit, Massachusetts General Hospital for Children and Harvard Medical School, Boston, MA 02114
| | - Anne Klibanski
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114
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Abstract
Anorexia nervosa (AN) is a condition of severe low weight that is associated with low bone mass, impaired bone structure, and reduced bone strength, all of which contribute to increased fracture risk. Adolescents with AN have decreased rates of bone accrual compared with normal-weight controls, raising additional concerns of suboptimal peak bone mass and future bone health in this age group. Changes in lean mass and compartmental fat depots, and hormonal alterations secondary to nutritional factors contribute to impaired bone metabolism in AN. The best strategy to improve bone density is to regain weight and menstrual function. Oral estrogen-progesterone combinations are not effective in increasing bone density in adults or adolescents with AN, and transdermal testosterone replacement is not effective in increasing bone density in adult women with AN. However, physiological estrogen replacement as transdermal estradiol with cyclic progesterone does increase bone accrual rates in adolescents with AN to approximate that in normal-weight controls, leading to a maintenance of bone density Z-scores. A recent study has shown that risedronate increases bone density at the spine and hip in adult women with AN. However, bisphosphonates should be used with great caution in women of reproductive age, given their long half-life and potential for teratogenicity, and should be considered only in patients with low bone density and clinically significant fractures when non-pharmacological therapies for weight gain are ineffective. Further studies are necessary to determine the best therapeutic strategies for low bone density in AN.
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Affiliation(s)
- Madhusmita Misra
- BUL 457Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Boston, Massachusetts 02114, USAPediatric Endocrine UnitMassachusetts General Hospital for Children and Harvard Medical School, Boston, Massachusetts 02114, USABUL 457Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Boston, Massachusetts 02114, USAPediatric Endocrine UnitMassachusetts General Hospital for Children and Harvard Medical School, Boston, Massachusetts 02114, USA
| | - Anne Klibanski
- BUL 457Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Boston, Massachusetts 02114, USAPediatric Endocrine UnitMassachusetts General Hospital for Children and Harvard Medical School, Boston, Massachusetts 02114, USA
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10
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Zuckerman-Levin N, Hochberg Z, Latzer Y. Bone health in eating disorders. Obes Rev 2014; 15:215-23. [PMID: 24165231 DOI: 10.1111/obr.12117] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 09/11/2013] [Accepted: 09/13/2013] [Indexed: 12/30/2022]
Abstract
Eating disorders (EDs) put adolescents and young adults at risk for impaired bone health. Low bone mineral density (BMD) with ED is caused by failure to accrue peak bone mass in adolescence and bone loss in young adulthood. Although ED patients diagnosed with bone loss may be asymptomatic, some suffer bone pains and have increased incidence of fractures. Adolescents with ED are prone to increased prevalence of stress fractures, kyphoscoliosis and height loss. The clinical picture of the various EDs involves endocrinopathies that contribute to impaired bone health. Anorexia nervosa (AN) is characterized by low bone turnover, with relatively higher osteoclastic (bone resorptive) than osteoblastic (bone formation) activity. Bone loss in AN occurs in both the trabecular and cortical bones, although the former is more vulnerable. Bone loss in AN has been shown to be influenced by malnutrition and low weight, reduced fat mass, oestrogen and androgen deficiency, glucocorticoid excess, impaired growth hormone-insulin-like growth factor 1 axis, and more. Bone loss in AN may not be completely reversible despite recovery from the illness. Treatment modalities involving hormonal therapies have limited effectiveness, whereas increased caloric intake, weight gain and resumption of menses are essential to improved BMD.
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Affiliation(s)
- N Zuckerman-Levin
- Eating Disorders Clinic, Psychiatric Division, Rambam Medical Center, Haifa, Israel
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Howgate DJ, Graham SM, Leonidou A, Korres N, Tsiridis E, Tsapakis E. Bone metabolism in anorexia nervosa: molecular pathways and current treatment modalities. Osteoporos Int 2013; 24:407-21. [PMID: 22875459 DOI: 10.1007/s00198-012-2095-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2012] [Accepted: 07/03/2012] [Indexed: 11/26/2022]
Abstract
Eating disorders are associated with a multitude of metabolic abnormalities which are known to adversely affect bone metabolism and structure. We aimed to comprehensively review the literature on the effects of eating disorders, particularly anorexia nervosa (AN), on bone metabolism, bone mineral density (BMD), and fracture incidence. Furthermore, we aimed to highlight the risk factors and potential management strategies for patients with eating disorders and low BMD. We searched the MEDLINE/OVID (1950-July 2011) and EMBASE (1980-July 2011) databases, focussing on in vitro and in vivo studies of the effects of eating disorders on bone metabolism, bone mineral density, and fracture incidence. Low levels of estrogen, testosterone, dehydroepiandrosterone, insulin-like growth factor-1 (IGF-1), and leptin, and high levels of cortisol, ghrelin, and peptide YY (PYY) are thought to contribute to the 'uncoupling' of bone turnover in patients with active AN, leading to increased bone resorption in comparison to bone formation. Over time, this results in a high prevalence and profound degree of site-specific BMD loss in women with AN, thereby increasing fracture risk. Weight recovery and increasing BMI positively correlate with levels of IGF-1 and leptin, normalisation in the levels of cortisol, as well as markers of bone formation and resorption in both adolescent and adult patients with AN. The only treatments which have shown promise in reversing the BMD loss associated with AN include: physiologic dose transdermal and oral estrogen, recombinant human IGF-1 alone or in combination with the oral contraceptive pill, and bisphosphonate therapy.
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Affiliation(s)
- D J Howgate
- Academic Department of Orthopaedics and Trauma, Salford Royal University Teaching Hospital, Salford Royal NHS Foundation Trust, Stott Lane, M6 8HD, Salford, UK
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Dehydroepiandrosterone treatment effects on weight, bone density, bone metabolism and mood in women suffering from anorexia nervosa-a pilot study. Psychiatry Res 2012; 200:544-9. [PMID: 22858403 DOI: 10.1016/j.psychres.2012.07.012] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Revised: 06/21/2012] [Accepted: 07/15/2012] [Indexed: 12/13/2022]
Abstract
We investigated the effects of the administration of dehydroepiandrosterone (DHEA) on weight, bone metabolism, bone density and clinical mood symptoms in outpatient Anorexia Nervosa (AN) patients. AN patients (n=26) were double-blindly randomized to receive DHEA (100mg) or placebo for 6 months. Outcome measures were bone mineral density (BMD) and bone mineral content (BMC) measured by dual energy X-ray absorptiometry (DXA) and metabolism indexes, steroid hormones, and mood and eating disorder symptoms measured at baseline and at the 3 and 6 months follow-up visits. Mood and eating disorder symptoms were assessed monthly by the Beck Depression Inventory, Eating Disorder Inventory and Clinical Global Improvement Scales. No treatment or treatment by time interaction was observed for any bone density measures. Deoxypiridinolyne (DPD) was positively correlated with weight (P=0.02). An increase in body mass index (BMI) in the DHEA group was significantly higher at 4 months compared to the control group (P=0.05). Improvement of mood was significantly correlated with weight only in the DHEA group. Despite a significant decrease in DPD, no improvement in bone mineral density was detected. However, patients treated with DHEA benefited from a significant increase in BMI, which was positively correlated with improvement in mood.
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Ruble K, Hayat M, Stewart KJ, Chen A. Body composition after bone marrow transplantation in childhood. Oncol Nurs Forum 2012; 39:186-92. [PMID: 22374492 DOI: 10.1188/12.onf.186-192] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
PURPOSE/OBJECTIVES To describe the body composition and fat distribution of childhood bone marrow transplantation (BMT) survivors at least one year post-transplantation and examine the ability of the Centers for Disease Control and Prevention criteria to identify survivors with elevated body fat percentage. DESIGN Cross-sectional, descriptive. SETTING Pediatric oncology program at a National Cancer Institute-designated comprehensive cancer center. SAMPLE 48 childhood BMT survivors (27 males and 21 females). METHODS Measurements included dual-energy x-ray absorptiometry scan, height, weight, and physical activity. Descriptive statistics were reported and mixed-model linear regression models were used to describe findings and associations. MAIN RESEARCH VARIABLES Total body fat percentage and central obesity (defined as a ratio of central to peripheral fat of 1 or greater). FINDINGS Fifty-four percent of survivors had body fat percentages that exceeded recommendations for healthy body composition and 31% qualified as having central obesity. Previous treatment with total body irradiation was associated with higher body fat percentage and central obesity, and graft-versus-host disease was associated with lower body fat percentage. The body mass index (BMI) criteria did not correctly identify the BMT survivors who had elevated body fat percentage. CONCLUSIONS Survivors of childhood BMT are at risk for obesity and central obesity that is not readily identified with standard BMI criteria. IMPLICATIONS FOR NURSING Nurses caring for BMT survivors should include evaluation of general and central obesity in their assessments. Patient education materials and resources for healthy weight and muscle building should be made available to survivors. Research is needed to develop appropriate interventions.
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Affiliation(s)
- Kathy Ruble
- School of Medicine, Johns Hopkins University, Baltimore, MD, USA.
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Halvorsen I, Platou D, Høiseth A. Bone Mass Eight Years After Treatment for Adolescent-Onset Anorexia Nervosa. EUROPEAN EATING DISORDERS REVIEW 2012; 20:386-92. [DOI: 10.1002/erv.2179] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Inger Halvorsen
- Regional Department of Eating Disorders; Oslo University Hospital; Oslo; Norway
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Waugh EJ, Woodside DB, Beaton DE, Coté P, Hawker GA. Effects of exercise on bone mass in young women with anorexia nervosa. Med Sci Sports Exerc 2011; 43:755-63. [PMID: 20962688 DOI: 10.1249/mss.0b013e3181ff3961] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE The response of bone to exercise in women with anorexia nervosa (AN) is unclear. We investigated the associations between bone mineral density (BMD) and exercise performed while ill and while recovered in women with a history of AN. METHODS A cross-sectional study was conducted with 141 women with AN (85 ill; 56 recovered), aged 17-40 yr. BMD at the lumbar spine (LS), femoral neck (FN), and total body (TB) was measured by dual-energy x-ray absorptiometry. Life History Calendar and Minnesota Leisure Time Physical Activity interviews were used to collect lifetime illness and exercise histories (amount and bone loading type). Average hours per week of each of moderate (MOD) and high (HI) bone loading exercise were determined for three illness phases: "before ill," "while ill," and "while recovered." Participants were categorized into four exercise groups for each phase: MOD-ONLY, HI-ONLY, BOTH, and NEITHER (reference group). Weight-adjusted BMD z-scores were compared in the exercise groups by multivariable linear regression, adjusting for illness duration and severity, and exercise during the other illness phases. RESULTS In ill participants, MOD-ONLY "while ill" had lower BMD at LS (β = -0.69, 95% confidence interval (CI) = -1.02 to -0.05) and TB (β = -0.73, 95% CI = -1.31 to -0.15) than the NEITHER group. In recovered participants, HI-ONLY "while recovered" had higher BMD at FN (β = 0.95, 95% CI = 0.15-1.75) and TB (β = 0.79, 95% CI = 0.07-1.51) than the NEITHER group. CONCLUSIONS The effect of exercise on bone in AN patients is dependent on both the type of mechanical loading and the phase of illness during which it was performed. Excessive moderate loading exercise while ill may put patients at higher risk of low bone mass, but high bone loading activities may provoke bone accrual during recovery.
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Affiliation(s)
- Esther J Waugh
- Osteoporosis Research Program, Women’s College Hospital, 76 Grenville St., 8th Floor E, Room 812B, Toronto, Ontario, Canada M5S 2B2.
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Abstract
The incidence and prevalence of eating disorders in children and adolescents has increased significantly in recent decades, making it essential for pediatricians to consider these disorders in appropriate clinical settings, to evaluate patients suspected of having these disorders, and to manage (or refer) patients in whom eating disorders are diagnosed. This clinical report includes a discussion of diagnostic criteria and outlines the initial evaluation of the patient with disordered eating. Medical complications of eating disorders may affect any organ system, and careful monitoring for these complications is required. The range of treatment options, including pharmacotherapy, is described in this report. Pediatricians are encouraged to advocate for legislation and policies that ensure appropriate services for patients with eating disorders, including medical care, nutritional intervention, mental health treatment, and care coordination.
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Abstract
OBJECTIVES Alterations in serotonin impact bone metabolism in animal models, and selective serotonin reuptake inhibitors (SSRI) have been associated with increased fracture risk in older adults. SSRIs are commonly used in anorexia nervosa (AN), a condition that predisposes to low bone mineral density (BMD). Our objective was to determine whether SSRI use is associated with low BMD in AN. METHODS We examined Z-scores for spine, hip and whole body (WB) BMD, spine bone mineral apparent density and WBBMC/height (Ht) in females with AN 12-21 years old who had never been on SSRIs, on SSRIs for <6 months (<6M) or >6 months (>6M). RESULTS Subjects on SSRIs for >6M had lower spine, femoral-neck and WBBMD Z-scores than those on SSRIs for <6M. Hip BMD and WBBMC/Ht Z-scores were lowest in subjects on SSRIs for >6M. Duration of SSRI use, duration since AN diagnosis and duration of amenorrhea inversely predicted BMD, whereas BMI was a positive predictor. In a regression model, duration of SSRI use remained an independent negative predictor of BMD. DISCUSSION Duration of SSRI use >6M is associated with low BMD in AN. CONCLUSION It may be necessary to monitor BMD more rigorously when duration of SSRI use exceeds 6M.
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Schulze UME, Schuler S, Schlamp D, Schneider P, Mehler-Wex C. Bone mineral density in partially recovered early onset anorexic patients - a follow-up investigation. Child Adolesc Psychiatry Ment Health 2010; 4:20. [PMID: 20615217 PMCID: PMC2914652 DOI: 10.1186/1753-2000-4-20] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2009] [Accepted: 07/08/2010] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND AND AIMS There still is a lack of prospective studies on bone mineral development in patients with a history of early onset Anorexia nervosa (AN). Therefore we assessed associations between bone mass accrual and clinical outcomes in a former clinical sample. In addition to an expected influence of regular physical activity and hormone replacement therapy, we explored correlations with nutritionally dependent hormones. METHODS 3-9 years (mean 5.2 +/- 1.7) after hospital discharge, we re-investigated 52 female subjects with a history of early onset AN. By means of a standardized approach, we evaluated the general outcome of AN. Moreover, bone mineral content (BMC) and bone mineral density (BMD) as well as lean and fat mass were measured by dual-energy x-ray absorptiometry (DXA). In a substudy, we measured the serum concentrations of leptin and insulin-like growth factor-I (IGF-I). RESULTS The general outcome of anorexia nervosa was good in 50% of the subjects (BMI >/= 17.5 kg/m2, resumption of menses). Clinical improvement was correlated with BMC and BMD accrual (chi2 = 5.62/chi2 = 6.65, p = 0.06 / p = 0.036). The duration of amenorrhea had a negative correlation with BMD (r = -.362; p < 0.01), but not with BMC. Regular physical activity tended to show a positive effect on bone recovery, but the effect of hormone replacement therapy was not significant. Using age-related standards, the post-discharge sample for the substudy presented IGF-I levels below the 5th percentile. IGF-I serum concentrations corresponded to the general outcome of AN. By contrast, leptin serum concentrations showed great variability. They correlated with BMC and current body composition parameters. CONCLUSIONS Our results from the main study indicate a certain adaptability of bone mineral accrual which is dependent on a speedy and ongoing recovery. While leptin levels in the substudy tended to respond immediately to current nutritional status, IGF-I serum concentrations corresponded to the individual's age and general outcome of AN.
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Affiliation(s)
- Ulrike ME Schulze
- Department of Child and Adolescent Psychiatry/Psychotherapy, University of Ulm, Germany
| | - Simone Schuler
- Department of Child and Adolescent Psychiatry and Psychotherapy, University of Würzburg, Germany
| | - Dieter Schlamp
- Heckscher Clinic for Child and Adolescent Psychiatry, Munich, Germany
| | - Peter Schneider
- Clinic for Nuclear Medicine, University of Würzburg, Germany
| | - Claudia Mehler-Wex
- Department of Child and Adolescent Psychiatry/Psychotherapy, University of Ulm, Germany
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Fernández Soto ML, González Jiménez A, Varsavsky M. Metabolismo mineral y riesgo de fracturas en la anorexia nerviosa. Med Clin (Barc) 2010; 135:274-9. [DOI: 10.1016/j.medcli.2009.04.046] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2009] [Accepted: 04/24/2009] [Indexed: 10/20/2022]
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Affiliation(s)
- Evelyn Attia
- Weill Cornell Medical College and Columbia Center for Eating Disorders, Columbia University Medical Center, New York, New York;
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Mehler PS, MacKenzie TD. Treatment of osteopenia and osteoporosis in anorexia nervosa: a systematic review of the literature. Int J Eat Disord 2009; 42:195-201. [PMID: 18951456 DOI: 10.1002/eat.20593] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE To systematically review the evidence supporting treatment of osteopenia and osteoporosis in patients with anorexia nervosa (AN). DATA SOURCES We identified controlled clinical studies of interventions for low bone mass in AN via searches of MEDLINE; the Cochrane Library; EMBASE; PsycINFO; and cumulative index to nursing and allied health literature. Outcomes of interest were changes in bone mineral density and fracture incidence. RESULTS Six randomized controlled trials (RCTs) and two cohort trials examined five classes of medical therapy on bone mineral density outcomes. One RCT of bisphosphonates showed no benefit and a second flawed RCT showed some benefit; one RCT showed a benefit of insulin-like growth factor-I; none of the five trials evaluating estrogen therapy showed benefit. DISCUSSION Although patients with AN are often losing bone mass when they should be optimizing bone growth, there is no good evidence to guide medicinal interventions. Therefore, early detection and weight restoration are of utmost importance whereas ongoing trials define effective therapies.
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Affiliation(s)
- Philip S Mehler
- Department of Internal Medicine, Denver Health Medical Center, Denver, Colorado 80204, USA.
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Dual-energy X-ray aborptiometry assessment in children and adolescents with diseases that may affect the skeleton: the 2007 ISCD Pediatric Official Positions. J Clin Densitom 2008; 11:29-42. [PMID: 18442751 DOI: 10.1016/j.jocd.2007.12.004] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2007] [Accepted: 12/05/2007] [Indexed: 01/19/2023]
Abstract
The Task Force focusing on the use of dual energy X-ray absorptiometry (DXA) in children and adolescents with diseases that may affect the skeleton reviewed over 300 articles to establish the basis for the Official Positions. A significant number of studies used DXA-based outcome measures to assess the effects of specific interventions and charted the natural history of incremental changes in bone size and mass in specific disease states in children. However, the utility of DXA in clinical practice has not been evaluated systematically, in large part due to the lack of a workable definition for childhood osteoporosis. Thus, in combination with the Official Positions addressing the diagnosis of osteoporosis in children, and the reporting of DXA results in children, this document presents clear guidelines from which clinicians and researchers alike can work. This report delineates a set of disorders in which it is appropriate to use DXA as part of the comprehensive assessment of skeletal health in children and adolescents, and provides guidance concerning the initiation of assessment and the frequency of monitoring. Importantly, this document also highlights significant gaps in our knowledge, emphasizing areas for future research.
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Clinical practice guidelines for treating restrictive eating disorder patients during medical hospitalization. Curr Opin Pediatr 2008; 20:390-7. [PMID: 18622192 DOI: 10.1097/mop.0b013e32830504ae] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW Anorexia nervosa is a life-threatening complex psychiatric disorder that often requires patients to be medically hospitalized. In order to help provide consistent high-quality care to inpatients medically hospitalized for nutritional deficiency, a clinical practice guideline for these patients was created at Children's Hospital Boston. This paper reviews essential components of the clinical practice guideline for patients with restrictive eating disorders. RECENT FINDINGS There is considerable variability in admission practices, inpatient treatment and discharge criteria for patients with anorexia nervosa. Weight restoration is one critical factor in treatment, and research suggests that some medical complications are reversible with weight restoration. Weight gain during hospitalization is associated with better short-term outcomes, which indicate patients are continuing toward recovery. However, patients must be closely monitored during nutritional rehabilitation to avoid complications. SUMMARY The clinical practice guideline for patients with restrictive eating disorders outlines the care patients receive during the course of their hospitalization. The clinical practice guideline has been effective in helping patients to meet weight-gain goals. Clinical practice guideline outcome data could be used to compare protocols on a national level and help establish best practices for the inpatient medical treatment for these patients.
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Misra M. Long-Term Skeletal Effects of Eating Disorders with Onset in Adolescence. Ann N Y Acad Sci 2008; 1135:212-8. [DOI: 10.1196/annals.1429.002] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Winston AP, Alwazeer AEF, Bankart MJG. Screening for osteoporosis in anorexia nervosa: prevalence and predictors of reduced bone mineral density. Int J Eat Disord 2008; 41:284-7. [PMID: 18176948 DOI: 10.1002/eat.20501] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE Decreased bone mineral density (BMD) in anorexia nervosa (AN) can be detected easily by dual-energy X-ray absorptiometry (DXA). This study was designed to assess the prevalence of osteoporosis and osteopenia in AN, identify predictors, and determine the diagnostic yield of screening with DXA. METHOD DXA was used to screen 59 unselected adult patients with a history of AN. RESULTS Osteoporosis was identified in 18 patients (31%) and osteopenia in 30 (51%). The spine had a lower mean T-score than either the hip or femur. BMI significantly predicted T-score (p = 0.0006) and the odds of having osteoporosis (p = 0.0188). There was a significant association between use of oestrogens and the presence of osteoporosis or osteopenia (p = 0.0491). There was no significant association between duration of AN and T-score. A duration of AN of less than 1 year was found in 12% of those with osteoporosis. CONCLUSION BMI is a strong predictor of BMD in AN. DXA is an effective screening tool and should probably be offered routinely.
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Affiliation(s)
- Anthony P Winston
- Eating Disorders Unit, Woodleigh Beeches Centre, Warwick Hospital, Warwick, United Kingdom.
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Jayasinghe Y, Grover SR, Zacharin M. Current concepts in bone and reproductive health in adolescents with anorexia nervosa. BJOG 2008; 115:304-15. [PMID: 18190366 DOI: 10.1111/j.1471-0528.2007.01601.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Anorexia nervosa (AN) initiates an adaptive response at the level of the hypothalamus, which results in a complex interplay involving most elements of the neuroendocrine axis. Consequences of onset of disease in adolescence include amenorrhoea, pubertal arrest with potential loss of target height, and osteoporosis with reduced capacity for future attainment of peak bone mass. With recovery, delay in restoration of menses is common. Hormonal therapies for restoration of bone mineral density (BMD) in adolescents have shown limited efficacy. This review will discuss the reproductive endocrine effects of AN in adolescence, and discuss new investigative tools for monitoring restoration of reproductive function and BMD in this population.
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Affiliation(s)
- Y Jayasinghe
- Department of Gynaecology Royal Children's Hospital, Melbourne, Victoria, Australia.
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Hatch KA, Spangler DL, Backus EM, Balagna JT, Burns KS, Guzman BS, Hubbard MJ, Lindblad SL, Roeder BL, Ryther NE, Seawright MA, Tyau JN, Williams D. Towards a physiologically based diagnosis of anorexia nervosa and bulimia nervosa. Expert Rev Mol Diagn 2007; 7:845-57. [PMID: 18020913 DOI: 10.1586/14737159.7.6.845] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Diagnosis of anorexia nervosa (AN) and bulimia nervosa (BN), while including such physiological data as weight and the reproductive status of the individual, are primarily based on questionnaires and interviews that rely on self-report of both body-related concerns and eating-related behaviors. While some key components of eating disorders are psychological and thus introspective in nature, reliance on self-report for the assessment of eating-related behaviors and nutritional status lacks the objectivity that a physiologically based measure could provide. The development of a more physiologically informed diagnosis for AN and BN would provide a more objective means of diagnosing these disorders, provide a sound physiological basis for diagnosing subclinical disorders and could also aid in monitoring the effectiveness of treatments for these disorders. Empirically supported, physiologically based methods for diagnosing AN and BN are reviewed herein as well as promising physiological measures that may potentially be used in the diagnosis of AN and BN.
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Affiliation(s)
- Kent A Hatch
- Department of Biology, Brigham Young University, Provo, UT 84602, USA.
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Oświecimska J, Ziora K, Pluskiewicz W, Geisler G, Broll-Waśka K, Karasek D, Dyduch A. Skeletal status and laboratory investigations in adolescent girls with anorexia nervosa. Bone 2007; 41:103-10. [PMID: 17493887 DOI: 10.1016/j.bone.2007.03.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2006] [Revised: 03/26/2007] [Accepted: 03/29/2007] [Indexed: 10/23/2022]
Abstract
To our knowledge anorexia nervosa (AN) adversely influences bone density, but whether qualitative characteristics of bone are also affected is not known. For this reason we investigated prospectively the changes in skeletal status in a population of 18 adolescent girls with AN aged 11.5-18.1 years (mean 15.9+/-1.9 years) using both dual-photon X-ray absorptiometry (DXA) and quantitative ultrasound (QUS) measurements, bone turnover markers (osteocalcin, bone alkaline phosphatase - bALP, carboxy-terminal cross-linked telopeptide of type I collagen - ICTP), and laboratory investigations (serum total and ionised calcium, serum phosphate, urine calcium/creatinine ratio, luteinizing hormone - LH, follicle-stimulating hormone - FSH, estradiol). Measurements of bone mineral density at the spine (s-BMD) and total body (TB-BMD) and amplitude-dependent speed of sound (Ad-SOS) of the hand phalanges were performed at baseline, 7.8+/-2.4 and 19.4+/-5.6 months of follow-up. The mean values of TB-BMD, s-BMD and Ad-SOS measurements did not change during the period of observation. The mean Z-scores for TB-BMD and Ad-SOS were significantly lower after 19.4 months of observation vs. baseline (-1.06+/-1.00 vs. -0.67+/-0.98 vs. and -0.50+/-0.88 vs. 0.26+/-1.75, respectively). Z-scores for s-BMD decreased non-significantly (p=0.08). Among bone turnover markers, we observed a significant increase in bALP and a non-significant increase in osteocalcin serum concentrations which were below normal ranges for age, sex and Tanner stage at baseline. High baseline serum ICTP concentration decreased non-significantly, reaching normal ranges during the observation. We conclude that anorexia nervosa seriously affects skeletal status in adolescent girls. Bone turnover markers analysed together with densitometric parameters suggest that AN influences both bone formation and resorption processes. QUS measurements at hand phalanges may be an appropriate method in the evaluation of skeletal status in patients with AN.
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Affiliation(s)
- Joanna Oświecimska
- Department of Pediatrics, Nephrology and Children's Endocrinology, Medical University of Silesia, Zabrze, Poland.
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Diamanti A, Bizzarri C, Gambarara M, Calce A, Montecchi F, Cappa M, Bianco G, Castro M. Bone mineral density in adolescent girls with early onset of anorexia nervosa. Clin Nutr 2007; 26:329-34. [PMID: 17307279 DOI: 10.1016/j.clnu.2006.12.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2006] [Revised: 12/20/2006] [Accepted: 12/25/2006] [Indexed: 11/17/2022]
Abstract
BACKGROUND & AIMS To assess prevalence of bone mineral density (BMD) reduction and relationship between bone mineral status and anthropometric assessment, nutritional intake and physical activity in adolescents with early anorexia nervosa (AN). METHODS Fifty-seven consecutive AN patients and 57 healthy controls underwent anthropometric status, bone density, body composition and physical activity evaluations. In AN patients clinical features and nutritional intake were also assessed. RESULTS Thirty-five patients with AN (62%) and 44 healthy subjects (77%) (pNS) showed normal BMD. Mean value of BMD Z-score was -0.6+/-0.9 in AN patients and -0.2+/-1.4 in controls (pNS). Weight at diagnosis and lean mass resulted the main predictor of bone loss but also height, best weight before diagnosis and BMI resulted correlated with bone mineral status in AN patients. Additionally, AN patients maintained good levels of protein intake and sport activity CONCLUSIONS Early diagnosis may prevent bone loss in AN patients. Protein intake and moderate physical activity seem to be useful to maintain an adequate bone mineral status.
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Affiliation(s)
- Antonella Diamanti
- Gastroenterology and Nutrition Unit, Pediatric Hospital Bambino Gesù, Piazza S. Onofrio, 4-00165 Rome, Italy.
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Misra M, Tsai P, Anderson EJ, Hubbard JL, Gallagher K, Soyka LA, Miller KK, Herzog DB, Klibanski A. Nutrient intake in community-dwelling adolescent girls with anorexia nervosa and in healthy adolescents. Am J Clin Nutr 2006; 84:698-706. [PMID: 17023694 PMCID: PMC3210565 DOI: 10.1093/ajcn/84.4.698] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Adolescence is a common time for the onset of anorexia nervosa (AN), a condition associated with long-term medical and hormonal consequences. OBJECTIVE The objective was to compare the nutrient intakes of community-dwelling girls with AN with those of healthy adolescents and to describe the associations between specific nutrient intakes and nutritionally dependent hormones. DESIGN Nutrient intakes in 39 community-dwelling girls with AN and 39 healthy adolescents aged 12.1-18.7 y were determined by using 4-d food records. Fasting adiponectin, leptin, ghrelin, insulin, and insulin-like growth factor I (IGF-I) concentrations were measured. Indirect calorimetry was used to assess respiratory quotient and resting energy expenditure. RESULTS In contrast with the control group, the AN group consumed fewer calories from fats (P < 0.0001) and more from carbohydrates (P = 0.0009) and proteins (P < 0.0001). Intake of individual fat components was lower and of dietary fiber higher in the AN group. No significant between-group differences were observed in dietary intakes of calcium, zinc, and iron; however, total intake was greater in the AN group because of greater supplement use (P = 0.006, 0.02, and 0.01, respectively). The AN group had greater intakes of vitamins A, D, and K and of most of the B vitamins, and significantly more girls with AN met the Dietary Reference Intake for calcium (P = 0.01) and vitamin D (P = 0.02) from supplement use. Fat intake predicted ghrelin, insulin, and IGF-I concentrations; carbohydrate intake predicted adiponectin. Resting energy expenditure was lower (P < 0.0001) and leisure activity levels higher in the AN group. CONCLUSIONS Despite outpatient follow-up, community-dwelling girls with AN continue to have lower fat and higher fiber intakes than do healthy adolescents, which results in lower calorie intakes. Nutritionally related hormones are associated with specific nutrient intakes.
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Affiliation(s)
- Madhusmita Misra
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.
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Abstract
Anorexia nervosa (AN), a condition of severe undernutrition, is associated with low bone mineral density (BMD) in adults and adolescents. Whereas adult women with AN have an uncoupling of bone turnover markers with increased bone resorption and decreased bone formation markers, adolescents with AN have decreased bone turnover overall. Possible contributors to low BMD in AN include hypoestrogenism and hypoandrogenism, undernutrition with decreased lean body mass, and hypercortisolemia. IGF-I, a known bone trophic factor, is reduced despite elevated growth hormone (GH) levels, leading to an acquired GH resistant state. Elevated ghrelin and peptide YY levels may also contribute to impaired bone metabolism. Weight recovery is associated with recovery of BMD but this is often partial, and long-term and sustained weight recovery may be necessary before significant improvements are observed. Anti-resorptive therapies have been studied in AN with conflicting results. Oral estrogen does not increase BMD or prevent bone loss in AN. The combination of bone anabolic and anti-resorptive therapy (rhIGF-I with oral estrogen), however, did result in a significant increase in BMD in a study of adult women with AN. A better understanding of the pathophysiology of low BMD in AN, and development of effective therapeutic strategies is critical. This is particularly so for adolescents, who are in the process of accruing peak bone mass, and in whom a failure to attain peak bone mass may occur in AN in addition to loss of established bone.
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Affiliation(s)
- Madhusmita Misra
- Pediatric Endocrine Unit, Massachusetts General Hospital for Children, Boston, MA, USA
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Compston JE, McConachie C, Stott C, Hannon RA, Kaptoge S, Debiram I, Love S, Jaffa A. Changes in bone mineral density, body composition and biochemical markers of bone turnover during weight gain in adolescents with severe anorexia nervosa: a 1-year prospective study. Osteoporos Int 2006; 17:77-84. [PMID: 15889315 DOI: 10.1007/s00198-005-1904-6] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2004] [Accepted: 03/22/2005] [Indexed: 10/25/2022]
Abstract
Osteoporosis is a serious complication of anorexia nervosa and in affected adolescents may result in a permanent deficit in bone mass. The pathophysiology of this bone disease has not been clearly defined. In this prospective study of 26 young women with anorexia nervosa aged 13-20 years (mean 16.5) we have measured changes in bone mineral density, total body composition and biochemical indices of bone turnover over 1 year. Over this period there was a mean weight gain of 10 kg and significant height gain with baseline and final values for body mass index of 14.2+/-1.7 and 17.6+/-2.3 kg/m2 (P<0.001). However, no significant changes were seen in bone mineral density in the spine or proximal femur during the study; total body bone mineral content was significantly higher than baseline at 3 months and 12 months (P=0.001 and P<0.0001), but total body bone mineral density at 3 months was significantly lower than baseline (P=0.003). Serum osteocalcin and bone-specific alkaline phosphatase values increased significantly and remained higher than baseline at all time points whereas urinary NTX/creatinine excretion showed a non-significant increase over the first 6 months of the study, but at 12 months, the mean value was significantly lower than baseline. Mean serum 25-hydroxyvitamin D levels showed a significant decrease at 6 months (P<0.05), but returned towards baseline thereafter. There was a significant increase in serum parathyroid hormone levels at all time points compared to baseline, these occurring within the normal range. These results indicate that although weight gain in young anorexics is associated with linear growth, bone mineral density does not increase. Whether this deficit can be corrected subsequently requires longer-term prospective studies.
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Affiliation(s)
- J E Compston
- Department of Medicine, University of Cambridge School of Clinical Medicine, Cambridge, UK.
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Elgán C, Fridlund B. Bone mineral density in relation to body mass index among young women: a prospective cohort study. Int J Nurs Stud 2005; 43:663-72. [PMID: 16343501 DOI: 10.1016/j.ijnurstu.2005.10.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2005] [Revised: 09/13/2005] [Accepted: 10/29/2005] [Indexed: 12/01/2022]
Abstract
AIM To identify important predictors among lifestyle behaviours and physiological factors of bone mineral density (BMD) in relation to body mass index (BMI) among young women over a 2-year period. DESIGN, SAMPLE AND MEASUREMENTS: Data were collected in 1999 and 2001. Healthy young women (n=152) completed a questionnaire. BMD measurements were performed by DEXA in the calcaneus. The women were subdivided into three categories according to baseline BMI. RESULTS Baseline bodyweight explained 25% of the variability in BMD at follow-up in the BMI<19 category, and high physical activity seemed to hinder BMD development. In the BMI>24 category, a difference in time spent outdoors during winter between baseline and follow-up was the single most important factor for BMD levels. Overweight women with periods of amenorrhoea had lower BMD than overweight women without such periods. CONCLUSIONS Predictors and lifestyle behaviours associated with BMD are likely to be based on women of normal weight. BMI should be considered when advising on physical activity, since high physical activity seems to impair BMD development among underweight young women, possibly due to energy imbalance. Among overweight women, sleep satisfaction is the greatest predictor associated with BMD change and may indicate better bone formation conditions. Energy balance and sleep quality may be prerequisites of bone health and should be considered in prevention.
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Affiliation(s)
- Carina Elgán
- Department of Health Sciences, Division of Nursing, Lund University, P.O. Box 157, S-221 00 Lund, Sweden.
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Stoffman N, Schwartz B, Austin SB, Grace E, Gordon CM. Influence of bone density results on adolescents with anorexia nervosa. Int J Eat Disord 2005; 37:250-5. [PMID: 15822087 DOI: 10.1002/eat.20131] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Not reaching an optimal peak bone mass during adolescence puts young patients with anorexia nervosa (AN) at risk for osteoporosis. Qualitative techniques were employed to determine whether having a bone mineral density (BMD) measurement affected the attitudes and behaviors of young women with AN. METHODS Nineteen adolescents with AN who had undergone BMD measurements were questioned about the experience of having the test and reactions to the results. Themes were identified and statistical analyses were performed. RESULTS Participants perceived a normal or low BMD in healthy and unhealthy ways. Although not all healthy feelings led to behavioral change, they appeared to serve as driving forces later in their illness. DISCUSSION Providing young women with BMD results is not always enough to change unhealthy behaviors and may generate some unhealthy thoughts. However, the experience may lead to positive behavioral changes and result in long-term improvement. Clinicians must be careful and sensitive when presenting these results.
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Affiliation(s)
- Nava Stoffman
- Division of Adolescent/Young Adult Medicine, Children's Hospital Boston, Boston, Massachusetts 02115, USA
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Abstract
OBJECTIVE A case-control study was conducted to determine whether bone mass is reduced in Chinese patients with anorexia nervosa (AN) and to study the risk factors for low bone mass in the same population. METHOD Bone mineral density (BMD) of the lumbar spine and hip was measured by dual-energy X-ray absorptiometry in 42 AN patients and 221 controls. RESULTS Patients with AN had a significantly lower BMD in the total hip and spine compared with controls (p <.001). In AN patients, linear regression showed that lowest body mass index (BMI) was positively associated with BMD in the hip (p = .04) whereas duration of illness was negatively associated with BMD in the hip (p = .05). DISCUSSION Chinese patients with AN are at risk of low BMD. Duration of illness and lowest BMI were significant predictors of reduced BMD in Chinese patients with AN.
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Affiliation(s)
- Samuel Wong
- Jockey Club Centre for Osteoporosis Care and Control, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China.
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36
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Abstract
Amenorrhea is a hallmark sign of anorexia nervosa. Its cause is multifactorial and its resolution necessitates treatment of the underlying eating disorder. The neuroendocrine changes associated with menstrual abnormalities in underweight and weight recovered anorexia nervosa, recent research on osteopenia, and treatment recommendations are addressed.
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Affiliation(s)
- L A P Mitan
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio 45229-3039, USA.
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Kahl KG, Kruse N, Rieckmann P, Schmidt MH. Cytokine mRNA expression patterns in the disease course of female adolescents with anorexia nervosa. Psychoneuroendocrinology 2004; 29:13-20. [PMID: 14575726 DOI: 10.1016/s0306-4530(02)00131-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Anorexia nervosa (AN) is a serious eating disorder characterized by extreme weight loss and abnormalities of the neuroendocrine and immune systems. Cytokines have been discussed to be involved in the pathomechanisms underlying cachexia. Therefore our study aimed at examining the mRNA expression pattern of tumor necrosis factor-alpha (TNF-alpha), interferon-gamma (IFN-gamma), interleukin-6 (IL-6) and interleukin-10 (IL-10) in whole blood of 11 female AN patients and 10 age and sex matched normal weight control subjects using a sensitive quantitative polymerase chain reaction (PCR) method. We found a significant increase in TNF-alpha and IL-6 mRNA expression in anorectic patients at admission (mean BMI 14.8 +/- 1.3) when compared to controls. During follow-up, the expression of TNF-alpha mRNA remained significantly higher in formerly anorectic patients (mean BMI 18.7 +/- 0.5) while IL-6 mRNA expression decreased. We interpret our results as suggesting that TNF-alpha may contribute to metabolic abnormalities in anorexia nervosa even after goal BMI is achieved.
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Affiliation(s)
- Kai G Kahl
- Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Mannheim, Germany.
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Misra M, Miller KK, Bjornson J, Hackman A, Aggarwal A, Chung J, Ott M, Herzog DB, Johnson ML, Klibanski A. Alterations in growth hormone secretory dynamics in adolescent girls with anorexia nervosa and effects on bone metabolism. J Clin Endocrinol Metab 2003; 88:5615-23. [PMID: 14671143 DOI: 10.1210/jc.2003-030532] [Citation(s) in RCA: 194] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Anorexia nervosa (AN) is a disorder that is increasing in frequency in adolescents, and the age of onset is often in the prepubertal years, potentially affecting the development of peak bone mass and linear growth. The GH-IGF-I axis plays an important role in bone formation, and alterations in GH secretory patterns have been described in adult women with AN. However, GH secretory dynamics in adolescents with AN have not been described, and the effects of alterations in GH secretory patterns and GH concentration on bone metabolism in AN are not known. We examined patterns of GH secretion by deconvolutional analysis, and GH concentration by Cluster analysis, in adolescent girls with AN (n = 22) and controls (n = 20) of comparable bone age and pubertal stage. We also examined the roles of cortisol, leptin, and estradiol in the regulation of GH secretion and concentration, and the relationship of GH secretory patterns and concentration to bone metabolism. Basal GH secretion and secretory pulse number in adolescent girls with AN were increased compared with control values (P = 0.03 and 0.007, respectively), and increased disorderliness of GH secretion (approximate entropy) was found in AN (P = 0.004). Mean and nadir GH concentrations and total area under the concentration curve were increased (P = 0.03, 0.002, and 0.03, respectively), and IGF-I levels were decreased (P = 0.0002) in girls with AN compared with healthy adolescent girls. IGF-I levels correlated negatively with nadir GH concentrations (r = -0.35; P = 0.02). Serum cortisol levels were higher in girls with AN than in controls (P < 0.0001) and correlated inversely with IGF-I (r = -0.58; P = 0.0001) and weakly with GH concentration (area under the concentration curve; r = -0.43; P = 0.05). A strong inverse relationship between markers of nutritional status (body mass index, fat mass, and leptin) and basal and pulsatile GH secretion, and mean and nadir GH concentrations was observed. GH concentration predicted levels of all markers of bone formation and a marker of bone resorption (N-telopeptide) in healthy controls, but not in AN. We demonstrate increases in basal GH secretion, number of secretory bursts, and GH concentration in adolescents with AN compared with controls, accompanied by low IGF-I levels. These data are consistent with the hypothesis that an acquired GH resistance occurs in this undernourished group. We also demonstrate that GH secretion and concentration are nutritionally regulated, and that the effects of nutrition exceed the effects of cortisol on GH concentration. Acquired GH resistance may play a role in the osteopenia and decreased peak bone mass frequently associated with AN.
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Affiliation(s)
- Madhusmita Misra
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA
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Harpavat M, Keljo DJ. Perspectives on osteoporosis in pediatric inflammatory bowel disease. Curr Gastroenterol Rep 2003; 5:225-32. [PMID: 12734045 DOI: 10.1007/s11894-003-0024-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Osteoporosis is now recognized as a problem in children with chronic illness. Decreased bone mineral density and increased risk of fracture have been reported in children with inflammatory bowel disease (IBD). Recent studies have led to a better understanding of the pathogenesis of bone loss. There are many risk factors for osteopenia and osteoporosis in children with IBD. Dual-energy x-ray absorptiometry remains the diagnostic procedure of choice for assessment of bone mineral density, but other modalities are being explored. Guidelines for diagnosis and treatment of osteoporosis in children have not been established. This article reviews the current understanding of osteopenia and osteoporosis in children with IBD.
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Affiliation(s)
- Manisha Harpavat
- University of Pittsburgh School of Medicine, Children's Hospital of Pittsburgh, 3705 Fifth Avenue, Pittsburgh, PA 15213-2583, USA.
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Misra M, Soyka LA, Miller KK, Grinspoon S, Levitsky LL, Klibanski A. Regional body composition in adolescents with anorexia nervosa and changes with weight recovery. Am J Clin Nutr 2003; 77:1361-7. [PMID: 12791610 DOI: 10.1093/ajcn/77.6.1361] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Studies of regional fat distribution in adults with anorexia nervosa (AN) have shown decreased extremity fat at baseline and increased trunk fat with weight recovery, resulting in truncal adiposity. Little is known about fat distribution in adolescents with AN, especially with weight recovery. OBJECTIVE We sought to determine whether regional fat distribution in adolescents with AN is comparable with that in healthy adolescents and whether weight recovery results in increased trunk fat and truncal adiposity. DESIGN In 21 adolescent girls with AN and 21 control subjects matched for age and pubertal stage, we measured body-composition variables with dual-energy X-ray absorptiometry at baseline, 6 mo, and 12 mo. Weight recovery was defined as a > or = 10% increase in body mass index. RESULTS At baseline, the girls with AN had a lower percentage of trunk fat than did the control subjects, whereas the percentage of extremity fat was not significantly different between the groups. Weight recovery in 13 subjects with AN resulted in an increased percentage of trunk fat and an increased ratio of trunk fat to extremity fat; however, this ratio did not exceed that of control subjects. CONCLUSIONS In adolescents with AN, trunk fat rather than extremity fat is reduced. Weight recovery is associated with increased trunk fat and an increased ratio of trunk fat to extremity fat. In contrast with previous findings in adults, this most likely represents normalization of fat distribution rather than development of truncal adiposity.
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Affiliation(s)
- Madhusmita Misra
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston 02114, USA
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Gordon CM. Normal bone accretion and effects of nutritional disorders in childhood. J Womens Health (Larchmt) 2003; 12:137-43. [PMID: 12737711 DOI: 10.1089/154099903321576529] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Although osteoporosis is usually considered to be a health concern of the elderly, increased attention is being paid to children and adolescents who are at risk for developing this devastating disease. As osteoporosis is a preventable condition with no identified cure, focus has been placed on modifiable areas in a young person's life that may prevent the development of the disease. A child or adolescent's nutrition is an example of such an area. This review examines factors influencing normal bone development and emphasizes the importance of the adolescent years as a time for peak bone accretion. Current methods to evaluate skeletal status are examined, including the challenges that arise in interpreting bone densities in children who have growing bones. Children and adolescents who are at high risk for osteoporosis are discussed, with an emphasis on groups in whom poor nutrition likely mediates bone loss. Two models of malnutrition, anorexia nervosa and the female athlete triad, are discussed, with emphasis on the way in which each has deleterious effects on the adolescent skeleton. The promotion of skeletal health is ultimately the encouragement of good general health principles for all young people. Approaches for working with children and adolescents are reviewed, including literature supporting each strategy.
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Affiliation(s)
- Catherine M Gordon
- Department of Pediatrics, Harvard Medical School, and Divisions of Adolescent Medicine and Endocrinology, Children's Hospital, Boston, Massachusetts 02115, USA.
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Valtueña S, Di Mattei V, Rossi L, Polito A, Cuzzolaro M, Branca F. Bone resorption in anorexia nervosa and rehabilitated patients. Eur J Clin Nutr 2003; 57:260-5. [PMID: 12571657 DOI: 10.1038/sj.ejcn.1601527] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2002] [Revised: 05/03/2002] [Accepted: 05/08/2002] [Indexed: 11/08/2022]
Abstract
OBJECTIVE To assess the impact of anorexia nervosa and that of nutritional rehabilitation on bone resorption. DESIGN Cross-sectional, observational study. SETTING Rome, Italy SUBJECTS Twenty-eight female patients affected by anorexia nervosa (AN, BMI<or=17.0 kg/m(2)), 18 females rehabilitated from anorexia nervosa and weight-stable for at least 6 months (RE, BMI >or=18.5 kg/m(2)) and 34 age- and sex-matched healthy controls (CO, BMI >or=18.5 kg/m(2)). Among AN patients, 16 were affected by the 'restrictive' (ANr) and 12 by the 'purging' type (ANp) of anorexia nervosa. METHOD Body weight, height and skeletal diameters were measured on each individual. The skeletal mass (SKM) was predicted from the skeletal diameters of the elbow, wrist, knee and ankle, using the equation of Martin. Twenty-four-hour urinary excretion of pyridinium crosslinks of collagen (pyridinoline (Pyd) and deoxypyridinoline (Dpd)) and creatinine was assessed by reversed-phase HPLC with fluorimetric detection after solid-phase extraction and by the Jaffé-method with deproteinization, respectively. RESULTS Twenty-four-hour urinary output of Pyd and Dpd was not significantly different between AN and CO when expressed in absolute values, but AN showed higher bone resorption than CO when Pyd and Dpd excretion was adjusted by either creatinine (P<0.0000) or the SKM (P<0.05). Within the AN group, urinary excretion of both cross-links was significantly and consistently higher in ANp compared with ANr (P<0.05). However, these differences disappeared when crosslink output was adjusted either by urinary creatinine or SKM. RE subjects showed no differences in bone resorption with the AN group despite weight gain, being crosslink excretion consistently elevated compared to controls (Pyd: P<0.01 by creatinine and P<0.05 by SKM; Dpd: P<0.01 by creatinine and P<0.05 by SKM). CONCLUSION Bone resorption is elevated in anorexia nervosa and different strategies for low-weight maintenance do not seem to have a differential impact. Increased bone resorption persists in subjects with past diagnosis of anorexia nervosa despite rehabilitation lasting more than 6 months. This finding indicates that bone mass and turnover should be monitored in anorexia nervosa patients and ex-patients well beyond recovery of normal body mass. Further investigation is warranted to examine the long-term effect of such prolonged increase in bone turnover at a young age.
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Affiliation(s)
- S Valtueña
- Human Nutrition Unit, National Institute for Food and Nutrition Research, Rome, Italy
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Abstract
Pediatricians are called on to become involved in the identification and management of eating disorders in several settings and at several critical points in the illness. In the primary care pediatrician's practice, early detection, initial evaluation, and ongoing management can play a significant role in preventing the illness from progressing to a more severe or chronic state. In the subspecialty setting, management of medical complications, provision of nutritional rehabilitation, and coordination with the psychosocial and psychiatric aspects of care are often handled by pediatricians, especially those who have experience or expertise in the care of adolescents with eating disorders. In hospital and day program settings, pediatricians are involved in program development, determining appropriate admission and discharge criteria, and provision and coordination of care. Lastly, primary care pediatricians need to be involved at local, state, and national levels in preventive efforts and in providing advocacy for patients and families. The roles of pediatricians in the management of eating disorders in the pediatric practice, subspecialty, hospital, day program, and community settings are reviewed in this statement.
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Misra M, Klibanski A. Evaluation and treatment of low bone density in anorexia nervosa. NUTRITION IN CLINICAL CARE : AN OFFICIAL PUBLICATION OF TUFTS UNIVERSITY 2002; 5:298-308. [PMID: 12557813 DOI: 10.1046/j.1523-5408.2002.05605.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The prevalence of anorexia nervosa has increased in recent years, and a large proportion of adults as well as adolescents with this disorder have low bone density and, therefore, an increased risk of fractures. Anorexia nervosa often begins during adolescence, when peak bone mass is accumulated, resulting in significant deficits in bone mass accrual. Therefore, it is important to determine bone mineral density in adolescent and adult women who have this disorder, and to improve or at least stabilize bone metabolism in those with low bone mass. To do this, it is necessary to understand the mechanisms underlying low bone density in anorexia nervosa. This article discusses current concepts related to bone loss associated with anorexia nervosa, including how to prevent it.
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Affiliation(s)
- Madhusmita Misra
- Neuroendocrine Unit, Massachusetts General Hospital, Harvard Medical School, USA
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45
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Schneider M, Fisher M, Weinerman S, Lesser M. Correlates of low bone density in females with anorexia nervosa. Int J Adolesc Med Health 2002; 14:297-306. [PMID: 12617062 DOI: 10.1515/ijamh.2002.14.4.297] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
UNLABELLED The objectives were to delineate those factors which correlate with low bone density in patients with anorexia nervosa and in turn to predict those at greatest risk for osteopenia. DESIGN Bone density was evaluated by dual energy x-ray absorptiometry in 28 postmenarchal females with anorexia nervosa who had never received hormonal therapy. Bone density results were correlated with specific historical and physical factors utilizing descriptive statistics, scatter plots, and the Spearman correlation coefficient. RESULTS Mean age was 18.6 years, mean age at menarche was 12.9 yrs, mean length of illness was 19.8 months and mean duration of amenorrhea was 13.4 months. Mean % ideal body weight was 84% at the time of bone density, 75% at minimum weight and 100% at maximum weight. Mean lumbar spine bone density was -1.69 standard deviations from the norm; mean lateral spine bone density was -1.45 standard deviations from the norm; mean femoral neck of the hip bone density was -1.18 standard deviations from the norm. There was a strong negative correlation between duration of amenorrhea and bone density at the lumbar spine (r = -0.50, p < .01) and a mild correlation at the lateral spine (r = -0.49, p < 0.05) and femoral neck (r = -0.41, p < 0.05). There was also a strong negative correlation between length of illness and bone density at the lumbar spine (r = -0.53, p < 0.01) and lateral spine (r = -0.77, p < 0.0001), and a mild correlation with the femoral neck (r = -0.48, p < 0.05). Scatter plots of lumbar bone density versus duration of amenorrhea, and versus length of illness clearly showed not only that longer duration of amenorrhea and longer length illness correlated to bone loss, but also strikingly that within a short time of being ill and amenorrheic, significant bone loss was seen. Age, and age at menarche correlated mildly with osteopenia at the lateral spine; age correlated mildly with osteopenia at the femoral neck as well. There was a trend for minimum BMI to correlate with osteopenia at the lateral spine. There were no correlations of bone density with % IBW at bone density, minimum % IBW, maximum % IBW, change in % IBW, BMI at the time of the bone density, maximum BMI or change in BMI. CONCLUSIONS Low bone density, especially in the lumbar spine, correlated with both a longer duration of amenorrhea and longer length of illness, but not with other factors, in our patients with anorexia nervosa. As many of these patients, even those with a short duration of illness and amenorrhea, were osteopenic, it is advisable to continue to perform bone density studies in all patients with anorexia nervosa, on both a clinical and research basis.
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Affiliation(s)
- Marcie Schneider
- Division of Adolescent Medicine, Department of Pediatrics, North Shore University Hospital, New York University School of Medicine, Manhasset, New York, USA.
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Fisher M, Burns J, Symons H, Schneider M. Treatment of eating disorders in a division of adolescent medicine. Int J Adolesc Med Health 2002; 14:283-95. [PMID: 12613111 DOI: 10.1515/ijamh.2002.14.4.283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We present a report on a study of 638 adolescent patients with eating disorders treated at the North Shore University Hospital between 1980 and 1994. Data from the study are presented in this paper, together with a discussion of the implications for treatment in adolescent medicine settings.
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Affiliation(s)
- Martin Fisher
- Division of Adolescent Medicine, Department of Pediatrics, North Shore University Hospital, Manhasset, New York, USA.
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47
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Abstract
There is an increasing appreciation among physicians about the importance of bone health in children as a potential modifiable risk factor for development of osteoporosis later in life. Many unanswered questions about normal pediatric bone health make the treatment and clinical investigation of bone disease in children with chronic rheumatic diseases challenging. Understanding normal bone biology along with the epidemiology and diagnosis of osteoporosis is the key to the understanding of the potential for abnormal bone metabolism in the juvenile rheumatic diseases.
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Affiliation(s)
- C Egla Rabinovich
- Division of Pediatric Rheumatology, Department of Pediatrics, Duke University Medical Center, Box 3212, Durham, NC 27710, USA.
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48
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Gordon CM, Goodman E, Emans SJ, Grace E, Becker KA, Rosen CJ, Gundberg CM, Leboff MS. Physiologic regulators of bone turnover in young women with anorexia nervosa. J Pediatr 2002; 141:64-70. [PMID: 12091853 DOI: 10.1067/mpd.2002.125003] [Citation(s) in RCA: 99] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To clarify the role of physiologic regulators of bone turnover in patients with anorexia nervosa (AN). STUDY DESIGN Adolescent girls with AN (n = 61) had anthropometric, nutrition, and exercise data acquired, and bone mineral density (BMD) and body composition measured by dual energy x-ray absorptiometry. Serum samples were obtained for hormones, proresorptive cytokines, and bone formation markers, and urine for bone resorption markers. RESULTS In bivariate correlation analyses, significant (P <.05) predictors of lumbar BMD included height, weight, and exercise. In multiple regression models, these significant relationships held, even after controlling for the duration of amenorrhea and AN. For total body BMD, the same positive predictors were found and percentage of body fat was a negative correlate. For hip BMD, exercise and weight were found to be positive predictors. Dehydroepiandrosterone sulfate (DHEAS) was inversely correlated with N-telopeptides (NTx), and insulin-like growth factor I (IGF-I) was directly correlated with osteocalcin. Proresorptive cytokine levels were low or undetectable. CONCLUSIONS Exercise and weight were positive predictors of BMD. These data are the first to suggest a relationship between DHEAS and increased bone resorption in AN. IGF-I was correlated with bone formation indices. Low cytokine levels suggest that these factors do not mediate the increased bone resorption of AN.
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Affiliation(s)
- Catherine M Gordon
- Division of Adolescent/Young Adult Medicine, Children's Hospital, Boston, Massachusetts 02115, USA
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Castro J, Toro J, Lazaro L, Pons F, Halperin I. Bone mineral density in male adolescents with anorexia nervosa. J Am Acad Child Adolesc Psychiatry 2002; 41:613-8. [PMID: 12014794 DOI: 10.1097/00004583-200205000-00019] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVES To determine the percentage of male adolescent patients with abnormal bone mineral density (BMD), to identify the variables related to BMD loss, and to study BMD change after follow-up. METHOD Dual-energy-x-ray absorptiometry tests at the lumbar spine (L2-L4) and the femoral neck were administered in 20 male adolescents with anorexia nervosa (treated from 1997 until 2000 at the Department of Child and Adolescent Psychiatry and Psychology of the Hospital Clinic Universitari in Barcelona). Examinations were repeated in 15 patients after a follow-up of 6 to 24 months. RESULTS Thirty-five percent of patients had osteopenia at the lumbar spine and femoral neck. The following variables were related to osteopenia: >12 months' duration of anorexia (p = .003), <3 hours/week of physical activity (p = .009), and calcium intake <600 mg/day (p = .015). In a stepwise logistic regression analysis to predict spinal BMD with the three variables mentioned above, only months of duration entered in the equation (beta = 3.5, SE = 1.3, p = .008) and correctly classified 85% of patients. At the follow-up, patients with only partial weight recovery had a BMD loss of 3.2% at lumbar spine and 6.4% at femoral neck, whereas patients with total weight recovery had an increase of 7.8% at lumbar spine and 6.7% at femoral neck. CONCLUSIONS The risk of osteopenia in male adolescents with anorexia of more than 12 months' duration is high. In patients with total weight recovery, BMD increase is higher than normal.
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Affiliation(s)
- Josefina Castro
- Department of Child and Adolescent Psychiatry and Psychology, Institute of Psychiatry and Psychology, Hospital Clinic Universitari, Barcelona, Spain.
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Pietrobelli A, Faith MS, Wang J, Brambilla P, Chiumello G, Heymsfield SB. Association of lean tissue and fat mass with bone mineral content in children and adolescents. OBESITY RESEARCH 2002; 10:56-60. [PMID: 11786602 DOI: 10.1038/oby.2002.8] [Citation(s) in RCA: 82] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVES There has been uncertainty in the adult body composition literature about whether fat mass (FM) or fat free mass is a better predictor of bone mineral content and bone mineral density. This issue has recently also been raised in the pediatric literature. Based on suggested skeletal muscle-bone relationships, this study tested the hypothesis that in children and adolescents lean tissue mass (LTM) is a better predictor of total bone mineral content (TBMC) than is FM. RESEARCH METHODS AND PROCEDURES Subjects were 133 Italian children and adolescents, 5 to 17 years of age, undergoing a routine medical screen. FM (kilograms), LTM (kilograms), and TBMC (kilograms) were measured by DXA. Multiple regression analyses tested the independent association of FM and LTM with bone mineral content. RESULTS Regression analyses, adjusting for pubertal status and other covariates, showed that FM and LTM were independently associated with TBMC. These associations were similar for boys and girls. TBMC was more strongly associated with LTM than FM. DISCUSSION These observations support the hypothesis that in children and adolescents a close association exists between LTM, a measure of skeletal muscle, and skeletal characteristics.
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Affiliation(s)
- Angelo Pietrobelli
- Obesity Research Center, St. Luke's-Roosevelt Hospital, Columbia University, College of Physicians and Surgeons, New York, New York, USA.
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