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bone mineral density adolescent

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https://www.readbyqxmd.com/read/28605234/the-impact-of-training-load-on-bone-mineral-density-of-adolescent-swimmers-a-structural-equation-modeling-approach
#1
Ricardo Ribeiro Agostinete, Santiago Maillane-Vanegas, Kyle R Lynch, Bruna Turi-Lynch, Manuel João Coelho-E-Silva, Eduardo Zapaterra Campos, Suziane Ungari Cayres, Romulo Araújo Fernandes
PURPOSE: To investigate the mediating effect of muscle mass on the relationship between training load and bone density in adolescent swimmers. METHODS: A cross-sectional study involving 87 control and 22 swimmers aged 10-19 years (overall sample, n= 109). Swimmers had a minimum of one year of competition in regional and national championships, and control adolescents reported one year without any organized sport. Bone density was the main outcome (dual energy X-ray absorptiometry), which was measured in upper-limbs, lower-limbs, spine, and whole-body...
June 12, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28592609/tracking-of-vitamin-d-status-from-childhood-to-early-adulthood-and-its-association-with-peak-bone-mass
#2
Kun Zhu, Wendy H Oddy, Patrick Holt, Wendy Chan She Ping-Delfos, Jenny Mountain, Stephen Lye, Craig Pennell, Prue H Hart, John P Walsh
Background: To our knowledge, there are few longitudinal studies of vitamin D status from childhood to early adulthood, and it is uncertain whether vitamin D predicts peak bone mass in young adults.Objectives: The purpose of this longitudinal study was to evaluate the long-term stability of vitamin D status from ages 6 to 20 y in healthy individuals and to study associations between serum 25-hydroxyvitamin D [25(OH)D] at different developmental stages and bone mass measured at age 20 y.Design: Participants were offspring of the Western Australian Pregnancy Cohort (Raine) study...
June 7, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28589419/breastfeeding-as-the-sole-source-of-milk-for-6%C3%A2-months-and-adolescent-bone-mineral-density
#3
E Blanco, R Burrows, M Reyes, B Lozoff, S Gahagan, C Albala
Little is known regarding the relationship between early life factors and bone mineral density (BMD). We found a positive association between breastfeeding for at least 6 months, without formula supplementation, and whole body adolescent BMD z-score. INTRODUCTION: The aim of the study is to assess the role of breastfeeding BF on adolescent bone mineral density (BMD) in a cohort prospectively followed since infancy. METHODS: We studied 679 participants from an infancy iron deficiency anemia preventive trial in Santiago, Chile, followed to adolescence...
June 6, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28581534/bone-mineralization-and-densitometric-evaluation-of-vertebral-fractures-in-women-6-21-years-after-the-onset-of-anorexia-nervosa-symptoms
#4
Gabriela Jagielska, Jerzy Przedlacki, Zbigniew Bartoszewicz, Agnieszka Kondracka, Agnieszka Butwicka, Ewa Racicka, Olgierd Rowiński, Rafał Brzewski, Tomasz Wolańczyk, Celina Tomaszewicz-Libudzic, Urszula Szymańska
OBJECTIVES: We attempted to assess bone mineralization and the frequency of fractures occurrence in women with a history of treatment of anorexia nervosa (AN) in adolescence. METHODS: 47 women (age 20-36.8 years) were re-examined 6.33-21,2 years after the onset of AN symptoms. Bone mineral density (BMD) of total body, lumbar spine, femoral neck, total hip (DXA) and densitometric Vertebral Fracture Assessment (VFA) were performed on 46 of women and BAP, P1NP, CTX, estradiol, testosterone, cortisol, IGF-1, leptin, DHEA-S on 45 of women entered for the current study...
April 30, 2017: Psychiatria Polska
https://www.readbyqxmd.com/read/28580404/the-associations-of-exposure-to-combined-hormonal-contraceptive-use-on-bone-mineral-content-and-areal-bone-mineral-density-accrual-from-adolescence-to-young-adulthood-a-longitudinal-study
#5
Stefan A Jackowski, Adam D G Baxter-Jones, Ashlee J McLardy, Roger A Pierson, Carol D Rodgers
BACKGROUND: The association of long term combined hormone based contraceptives (CHC) use on bone mineral content (BMC) and areal bone mineral density (aBMD) development remains controversial, as it appears that the relationship may be age-dependent. The purpose of this study was to investigate the long-term associations of CHC exposure on the accrual of bone parameters from adolescence into young-adulthood. METHODS: 110 women (67 exposed to CHC) were drawn from the Pediatric Bone Mineral Accrual Study (PBMAS)...
December 2016: Bone Reports
https://www.readbyqxmd.com/read/28577285/the-influence-of-birth-weight-and-length-on-bone-mineral-density-and-content-in-adolescence-the-troms%C3%A3-study-fit-futures
#6
Tore Christoffersen, Luai A Ahmed, Anne Kjersti Daltveit, Elaine M Dennison, Elin K Evensen, Anne-Sofie Furberg, Luis Gracia-Marco, Guri Grimnes, Ole-Andreas Nilsen, Berit Schei, Grethe S Tell, Dimitris Vlachopoulous, Anne Winther, Nina Emaus
The influence of birth weight and length on bone mineral parameters in adolescence is unclear. We found a positive association between birth size and bone mineral content, attenuated by lifestyle factors. This highlights the impact of environmental stimuli and lifestyle during growth. PURPOSE: The influence of birth weight and length on bone mineral density and content later in life is unclear, especially in adolescence. This study evaluated the impact of birth weight and length on bone mineral density and content among adolescents...
December 2017: Archives of Osteoporosis
https://www.readbyqxmd.com/read/28561037/milk-cereal-and-whole-grain-dietary-patterns-protect-against-low-bone-mineral-density-among-male-adolescents-and-young-adults
#7
S Shin, S-H Kim, H Joung, M J Park
BACKGROUND/OBJECTIVES: Evidence supporting the possible effect of dietary factors on adult bone health has emerged in recent decades. The purpose of this study was to ascertain the influence of different dietary patterns on bone mineral density (BMD) among Korean male youth. SUBJECTS/METHODS: Data were extracted from the Korean National Health and Nutrition Examination Survey (KNHANES) during 2008-2011. The subjects included 1351 male aged 10-25 years. We defined 'low BMD group' as subjects with a BMD Z-score of -2...
May 31, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28554916/bone-mineral-density-reference-standards-for-chinese-children-aged-3-18-cross-sectional-results-of-the-2013-2015-china-child-and-adolescent-cardiovascular-health-ccach-study
#8
Junting Liu, Liang Wang, Jinghui Sun, Gongshu Liu, Weili Yan, Bo Xi, Feng Xiong, Wenqing Ding, Guimin Huang, Steven Heymsfield, Jie Mi
OBJECTIVES: No nationwide paediatric reference standards for bone mineral density (BMD) are available in China. We aimed to provide sex-specific BMD reference values for Chinese children and adolescents (3-18 years). METHODS: Data (10 818 participants aged 3-18 years) were obtained from cross-sectional surveys of the China Child and Adolescent Cardiovascular Health in 2015, which included four municipality cities and three provinces. BMD was measured using Hologic Discovery Dual Energy X-ray Absorptiometry (DXA) scanner...
May 29, 2017: BMJ Open
https://www.readbyqxmd.com/read/28554377/pharmacological-treatment-options-for-low-bone-mineral-density-and-secondary-osteoporosis-in-anorexia-nervosa-a-systematic-review-of-the-literature
#9
REVIEW
Lauren Robinson, Victoria Aldridge, Emma M Clark, Madhusmita Misra, Nadia Micali
OBJECTIVE: Although there are several evidence-based treatments available to increase Bone Mineral Density (BMD) and reduce fracture risk in aging men and women, there are still uncertainties regarding which treatments are efficacious in reducing lifetime fracture risk in women with Anorexia Nervosa (AN). METHODS: Medline, PsychInfo, Embase and the Cochrane Database were searched for English Language Studies. Inclusion criteria were studies of females of any age with AN who received pharmacological treatment with the primary aim to increase BMD or reduce fracture risk...
July 2017: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/28547135/sedentary-behaviour-and-bone-health-in-children-adolescents-and-young-adults-a-systematic-review
#10
REVIEW
J B Koedijk, J van Rijswijk, W A Oranje, J P van den Bergh, S P Bours, H H Savelberg, N C Schaper
Sedentary behaviour (SB) is increasing in Western societies and some studies suggest a deleterious effect of SB on bone. The aim of this systematic review was to examine the association between SB and bone health in children, adolescents and young adults. Electronic databases (PubMed, MEDLINE, PsycINFO and Science Citation Index) were searched for relevant articles up to January 9, 2017. Studies were included when results on bone health (e.g. strength, mass and structure) and either subjectively (questionnaires) or objectively (accelerometry) measured SB were reported in healthy participants ≤24 years...
May 26, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28538496/committee-opinion-no-702-female-athlete-triad
#11
(no author information available yet)
The female athlete triad is a medical condition observed in physically active females involving three components: 1) low energy availability with or without disordered eating, 2) menstrual dysfunction, and 3) low bone density. An individual does not need to show clinical manifestations of all three components of the female athlete triad simultaneously to be affected by the condition. Consequences of these clinical conditions may not be completely reversible, so prevention, early diagnosis, and intervention are critical...
June 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28530321/-the-effect-of-down-syndrome-on-teeth-and-jaws-development-the-first-case-report-on-dental-implants-with-15-years-follow-up
#12
Uri Zilberman
Down syndrome presents dentists with several treatment problems due to hereditary olygodontia of permanent teeth, abnormal development of the midface causing small maxilla and class III occlusion, abnormal mineralization of teeth, reduced bone density and hypotony. The challenge of replacing missing permanent teeth was the trigger for the development of dental implants some 30 years ago. However, the abnormal development of jaw bones and the reverse occlusion caused concerns in the dental community regarding the possibility of using dental implants in Down syndrome patients...
August 2016: Harefuah
https://www.readbyqxmd.com/read/28525352/evaluation-of-endocrine-and-metabolic-dysfunctions-after-hematopoietic-stem-cell-transplantation-in-children-a-study-from-turkey
#13
Dilek Gurlek Gokcebay, Fatih Azik, Cengiz Bayram, Arzu Yazal Erdem, Ali Fettah, Pamir Isik, Nese Yarali, Fatma Demirel, Bahattin Tunc, Namik Ozbek
BACKGROUND: Endocrine organs are highly susceptible to effects of high-dose chemotherapy. The objective of the study was to evaluate endocrine and metabolic complications after hematopoietic stem cell transplantation (HSCT) in children. METHODS: The patients who underwent HSCT in our center from April 2010 to October 2014 with at least 1 year follow-up were analyzed retrospectively. RESULTS: One-hundred children (M/F:59/41; mean age 8.9±4...
May 24, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28520584/eating-disorders-and-bone-metabolism-in-women
#14
Lauren Robinson, Nadia Micali, Madhusmita Misra
PURPOSE OF REVIEW: Eating Disorders are psychiatric disorders associated with a high risk for low bone mineral density (BMD) and fractures. Low BMD is a consequence of undernutrition, changes in body composition, and hormonal alterations. This review summarizes recent findings regarding novel strategies for assessing bone outcomes in patients with eating disorders, factors contributing to altered bone metabolism, and possible therapeutic strategies. RECENT FINDINGS: Emerging research in this field suggests that not only anorexia nervosa, but also bulimia nervosa results in lower BMD compared to controls...
May 16, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28500826/serum-kisspeptin-concentrations-are-negatively-correlated-with-body-mass-index-in-adolescents-with-anorexia-nervosa-and-amenorrhea
#15
Flora Bacopoulou, George I Lambrou, Maria-Evangelia Rodanaki, Evgenia Stergioti, Vasiliki Efthymiou, Efthymios Deligeoroglou, Sophia I Markantonis
OBJECTIVE: To measure, for the first time, serum kisspeptin concentrations in adolescent females with anorexia nervosa (AN) and associated amenorrhea, and investigate potential correlations of kisspeptin with anthropometric, bone and hormonal data. DESIGN: Setting: University Adolescent Medicine Center. PARTICIPANTS: Females aged 12-20 years with typical or atypical AN (based on DSM-5 diagnostic criteria) and controls. INTERVENTIONS: Measurement of body mass index (BMI), whole body/lumbar spine bone mineral density and serum concentrations of kisspeptin, follicle stimulating hormone, luteinizing hormone (LH), prolactin (PRL), thyroid stimulating hormone (TSH), free thyroxine, triiodothyronine, estradiol (E2), 17-hydroxyprogesterone...
January 2017: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28482269/skeletal-growth-and-bone-mineral-acquisition-in-type-1-diabetic-children-abnormalities-of-the-gh-igf-1-axis
#16
REVIEW
Manish Raisingani, Brar Preneet, Brenda Kohn, Shoshana Yakar
Type 1 diabetes mellitus (T1DM) is one of the most common chronic diseases diagnosed in childhood. Childhood and adolescent years are also the most important period for growth in height and acquisition of skeletal bone mineral density (BMD). The growth hormone (GH)/insulin like growth factor -1 (IGF-1) axis which regulates growth, is affected by T1DM, with studies showing increased GH and decreased IGF-1 levels in children with T1DM. There is conflicting data as to whether adolescents with TIDM are able to achieve their genetically-determined adult height...
June 2017: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/28439060/-calcium-and-bone-metabolism-across-women-s-life-stages-exercise-and-sport-to-increase-bone-strength-in-accordance-with-female-lifecycle
#17
Jun Iwamoto
Among females who require the strategies for preventing osteoporosis, appropriate exercise and sport through all their life are important to increase or maintain bone mass. However, the type of exercise and sport applied to females is different in accordance with the lifecycle. Jumping exercise increases bone mineral content(BMC)in prepubescent children(premenarcheal girls). Bone mineral density(BMD)is higher in adolescent athletes who are engaged in weight-bearing activities. Jumping exercise, muscle strengthening exercise, and weight-bearing plus muscle strengthening exercises increase BMD in young adults and premenopausal women...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28439050/-calcium-and-bone-metabolism-across-women-s-life-stages-changes-of-biochemical-markers-of-bone-turnover-in-life-cycle-of-women
#18
Osamu Chaki
Development of bone metabolism markers began about 35 years ago. Current by the osteoporosis and bone metabolism diseases diagnosis and treatment efficacy. In childhood and adolescence, bone formation and resorption were increased, but formation rate was exceeded resorption rate. To keep strength of bone, bone formation and resorption are balanced(remodeling)in the period of maturity, Bone mineral density greatly decreases and biochemical markers of bone turnover markedly increase in postmenopausal women, indicating accelerated bone remodeling because of estrogen withdrawal...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28435337/treatment-strategies-for-the-female-athlete-triad-in-the-adolescent-athlete-current-perspectives
#19
REVIEW
Jill Thein-Nissenbaum, Erin Hammer
Since the passage of Title IX in 1972, female sports participation has dramatically increased. The benefits of physical activity, including decreased risk for heart disease and diabetes as well as improved body image and self-esteem, far outweigh the risks. However, a select population of adolescent and young adult females may experience symptoms related to the female athlete triad (Triad), which refers to the interrelatedness of energy availability, menstrual function, and bone mineral density (BMD). These conditions often manifest clinically as disordered eating behaviors, menstrual irregularity, and stress fractures; an individual may suffer from 1 or all of the Triad components simultaneously...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28432403/bone-marrow-fat-content-in-70-adolescent-girls-with-anorexia-nervosa-magnetic-resonance-imaging-and-magnetic-resonance-spectroscopy-assessment
#20
Kirsten Ecklund, Sridhar Vajapeyam, Robert V Mulkern, Henry A Feldman, Jennifer M O'Donnell, Amy D DiVasta, Catherine M Gordon
BACKGROUND: Adolescents and women with anorexia nervosa have increased bone marrow fat and decreased bone formation, at least in part due to hormonal changes leading to preferential stem cell differentiation to adipocytes over osteoblasts. OBJECTIVE: The purpose of this study was to evaluate marrow fat content and correlate with age and disease severity using knee MRI with T1 relaxometry (T1-R) and MR spectroscopy (MRS) in 70 adolescents with anorexia nervosa. MATERIALS AND METHODS: We enrolled 70 girls with anorexia nervosa who underwent 3-T knee MRI with coronal T1-W images, T1-R and single-voxel proton MRS at 30 and 60 ms TE...
April 22, 2017: Pediatric Radiology
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