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https://www.readbyqxmd.com/read/28339762/maternal-and-genetic-effects-on-broiler-bone-properties-during-incubation-period
#1
R Yair, A Cahaner, Z Uni, R Shahar
In order to examine the differences in bone properties between fast-growing and slow-growing broiler embryos and to understand the effects of genotype and egg size on these differences, fast- and slow-growing hens and males were reciprocally crossed to create 4 egg groups: FST (laid by fast-growing hens, inseminated by fast-growing males), H-FST (fast-growing hens and slow-growing males), H-SLW (slow-growing hens and fast-growing males), and SLW (slow-growing hens and slow-growing males). Embryos (n = 8) from these 4 groups were sacrificed and weighed, and both tibiae were harvested on embryonic d (E) 17, 19, and 21...
February 23, 2017: Poultry Science
https://www.readbyqxmd.com/read/28334709/micronutrients-essential-fatty-acids-and-bone-health-in-phenylketonuria
#2
Serwet Demirdas, Francjan J van Spronsen, Carla E M Hollak, J Hanneke van der Lee, Peter H Bisschop, Fred M Vaz, Nienke M Ter Horst, M Estela Rubio-Gozalbo, Annet M Bosch
INTRODUCTION: In phenylketonuria (PKU), a natural protein-restricted dietary treatment prevents severe cognitive impairment. Nutrient deficiencies may occur due to strict diet. This study is aimed at evaluating the dietary intake and blood concentrations of micronutrients and essential fatty acids (FA), bone mineral density (BMD) and fracture history in patients on long-term dietary treatment. METHODS: Sixty early diagnosed Dutch patients (aged 1-39 years) were included in a multi-center cross-sectional study...
March 24, 2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28334520/new-approach-for-vertical-bone-regeneration-using-in-situ-gelling-and-sustained-bmp-2-releasing-poly-phosphazene-hydrogel-system-on-peri-implant-site-with-critical-defect-in-a-canine-model
#3
Bo-Bae Seo, Hae-Im Chang, Hyuck Choi, Jeong-Tae Koh, Kwi-Dug Yun, Jae-Yeol Lee, Soo-Chang Song
An injectable hydrogel system with sustained bone morphogenetic protein 2 (BMP-2) release ability was developed for vertical bone regeneration at peri-implant sites and enhanced osseointegration of dental implants. In three young male beagle dogs, a pair of defects was created on both sides of the mandibular bone. Next, two implants were transplanted into each defect. In situ gelling polymer solutions with or without BMP-2 were applied to cover the implants and mandibular defects. The effects of the in situ gelling and sustained BMP-2 releasing (IGSR) hydrogel system on peri-implant bone regeneration were evaluated by radiologic examination, micro-computed tomography, and histomorphometric analysis...
March 23, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28334220/effect-of-vitamin-d-deficiency-in-developed-countries
#4
Zaki K Hassan-Smith, Martin Hewison, Neil J Gittoes
Introduction: Vitamin D deficiency is common worldwide with adverse effects on skeletal health. In recent years, there has been great interest in non-classical actions of vitamin D. Basic research has uncovered actions in a range of non-skeletal tissues, and observational studies have identified inverse relationships with risk of a number of disease states including sarcopenia, obesity, the metabolic syndrome, cardiovascular disease, cancer and autoimmune diseases. Sources of data: PubMed, Medline and Cochrane Systematic Reviews...
March 9, 2017: British Medical Bulletin
https://www.readbyqxmd.com/read/28331906/associations-between-sarcopenia-and-degenerative-lumbar-scoliosis-in-older-women
#5
Yawara Eguchi, Munetaka Suzuki, Hajime Yamanaka, Hiroshi Tamai, Tatsuya Kobayashi, Sumihisa Orita, Kazuyo Yamauchi, Miyako Suzuki, Kazuhide Inage, Kazuki Fujimoto, Hirohito Kanamoto, Koki Abe, Yasuchika Aoki, Tomoaki Toyone, Tomoyuki Ozawa, Kazuhisa Takahashi, Seiji Ohtori
BACKGROUND: Age-related sarcopenia can cause various forms of physical disabilities. We investigated how sarcopenia affects degenerative lumbar scoliosis (DLS) and lumbar spinal canal stenosis (LSCS). METHODS: Subjects comprised 40 elderly women (mean age 74 years) with spinal disease whose chief complaints were low back pain and lower limb pain. They included 15 cases of DLS (mean 74.8 years) and 25 cases of LSCS (mean age 72.9 years). We performed whole-body dual-energy X-ray absorptiometry (DXA) to analyze body composition, including appendicular and trunk skeletal muscle mass index (SMI; lean mass (kg)/height (m)(2)) and bone mineral density (BMD)...
2017: Scoliosis and Spinal Disorders
https://www.readbyqxmd.com/read/28331747/the-relationship-between-bone-mineral-density-and-estrogen-receptor-positivity-in-patients-with-breast-cancer
#6
Zeynep Erdoğan İyigün, Kezban Nur Pilancı, Fatmagül Kuşku Çabuk, Serkan İlgün, Çetin Ordu, Tomris Duymaz, Gül Alço, Filiz Çelebi, Dauren Sarsenov, Filiz İzci, Alper Öztürk, Filiz Ağaçayak, Ülkühan İner Köksal, Fatma Aktepe, Yeşim Eralp, Vahit Özmen
OBJECTIVE: The effect of estrogen on bone mineral density (BMD) and breast cancer has been known for a long time. The aim of this study was to compare of the BMD of patients with breast cancer and healthy individuals, and to investigate the degree of correlation of estrogen receptor (ER) with BMD. MATERIALS AND METHODS: Seventy-one patients with postmenopausal breast cancer and 79 healthy dividuals were included in the study. The patient demographics (age, menopause age, body mass index, number of children, BMD, Z scores, and estrogen status for breast cancer patients) were taken from hospital records...
July 2016: J Breast Health (2013)
https://www.readbyqxmd.com/read/28330908/the-effect-of-dairy-intake-on-bone-mass-and-body-composition-in-early-pubertal-girls-and-boys-a-randomized-controlled-trial
#7
Kara A Vogel, Berdine R Martin, Linda D McCabe, Munro Peacock, Stuart J Warden, George P McCabe, Connie M Weaver
Background: Calcium retention increases with increasing body mass index (BMI) on recommended calcium intakes. Dairy foods are an excellent source of essential nutrients that are needed to increase bone mineral content (BMC) and potentially decrease fracture.Objective: We compared children who were overweight with children who were healthy weight for the accrual of bone mass in response to an extra 3 servings dairy/d compared with usual intake.Design: Participants were 240 healthy boys and girls (64%), aged 8-15...
March 22, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28329121/very-low-calorie-diets-for-weight-loss-in-obese-older-adults-a-randomized-trial
#8
Cilla J Haywood, Luke A Prendergast, Katrina Purcell, Lauren Le Fevre, Wen Kwang Lim, Mary Galea, Joseph Proietto
Background: Obesity contributes to disability in older adults, and this is offset by weight loss and exercise. Very Low Calorie Diets (VLCDs) achieve rapid weight loss; however, these have not been rigorously evaluated in older people. Methods: A randomized trial was conducted from August 2012 through December 2015. The intervention was 12 weeks of thrice weekly exercise combined with either healthy eating advice (Ex/HE), hypocaloric diet (Ex/Diet), or VLCD (Ex/VLCD)...
February 20, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28328853/updated-association-of-tea-consumption-and-bone-mineral-density-a-meta-analysis
#9
Zhao-Fei Zhang, Jun-Long Yang, Huan-Chang Jiang, Zheng Lai, Feng Wu, Zhi-Xiang Liu
BACKGROUND: Current studies evaluating the association of tea consumption and bone mineral density (BMD) have yielded inconsistent findings. Therefore, we conducted a meta-analysis to assess the relationship between tea consumption and BMD. METHODS: The PubMed, Embase, and Cochrane Library databases were comprehensively searched, and a meta-analysis performed of all observational studies assessing the association of tea consumption and BMD. Forest plots were used to illustrate the results graphically...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28327171/the-association-of-time-and-medications-with-changes-in-bone-mineral-density-in-the-2%C3%A2-years-after-critical-illness
#10
Neil R Orford, Michael Bailey, Rinaldo Bellomo, Julie A Pasco, Claire Cattigan, Tania Elderkin, Sharon L Brennan-Olsen, David J Cooper, Mark A Kotowicz
BACKGROUND: Critical illness is associated with increased risk of fragility fracture and loss of bone mineral density (BMD), although the impact of medication exposures (bone anti-fracture therapy or glucocorticoids) and time remain unexplored. The objective of this study was to describe the association of time after ICU admission, and post-ICU administration of bone anti-fracture therapy or glucocorticoids after critical illness, with change in BMD. METHODS: In this prospective observational study, conducted in a tertiary hospital ICU, we studied adult patients requiring mechanical ventilation for at least 24 hours and measured BMD annually for 2 years after ICU discharge...
March 21, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28326606/physical-activity-sedentary-time-and-bone-strength-from-childhood-to-early-adulthood-a-mixed-longitudinal-hr-pqct-study
#11
Leigh Gabel, Heather M Macdonald, Lindsay Nettlefold, Heather A McKay
Bone strength is influenced by bone geometry, density, and bone microarchitecture, which adapt to increased mechanical loads during growth. Physical activity (PA) is essential for optimal bone strength accrual; however, less is known about how sedentary time influences bone strength and its determinants. Thus, our aim was to investigate the prospective associations between PA, sedentary time, and bone strength and its determinants during adolescence. We used HR-pQCT at distal tibia (8% site) and radius (7% site) in 173 girls and 136 boys (aged 9 to 20 years at baseline)...
March 22, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28326353/in-vitro-osteogenic-capacity-of-bone-marrow-mscs-from-postmenopausal-women-reflect-the-osseointegration-of-their-cementless-hip-stems
#12
Jessica J Alm, Niko Moritz, Hannu T Aro
Age-related dysfunction of mesenchymal stromal cells (MSCs) is suggested as a main cause of altered bone repair with aging. We recently showed that in postmenopausal women undergoing cementless total hip arthroplasty (THA) aging, low bone mineral density (BMD) and age-related geometric changes of the proximal femur are risk factors for increased early migration and delayed osseointegration of the femoral stems. Extending these analyses, we have here explored how the in vitro osteogenic capacity of bone marrow MSCs from these patients reflects implant osseointegration, representing the patient's in vivo bone healing capacity...
December 2016: Bone Reports
https://www.readbyqxmd.com/read/28326352/aging-lifestyle-factors-hormones-and-bone-health-in-singaporean-men
#13
Victor Hng Hang Goh, William George Hart
PURPOSE: The present study examined how age, bodyweight, body fat, regular exercise and some endocrine factors are associated with osteoporosis, spine bone mineral density (Sbmd) and femoral neck bone mineral density (Fnbmd) in Singaporean men. METHODS: Body composition and bone scans of lumbar spine at L2-L4 and hip were carried out with duel-energy X-ray absorptiometry (DXA). Anthropometric parameters were measured and demographic data, medical history and exercise schedule were collected via a questionnaire...
December 2016: Bone Reports
https://www.readbyqxmd.com/read/28326351/effects-of-low-dose-ibuprofen-supplementation-and-resistance-training-on-bone-and-muscle-in-postmenopausal-women-a-randomized-controlled-trial
#14
Whitney R D Duff, Saija A Kontulainen, Darren G Candow, Julianne J Gordon, Riley S Mason, Regina Taylor-Gjevre, Bindu Nair, Michael Szafron, Adam D G Baxter-Jones, Gordon A Zello, Philip D Chilibeck
PURPOSE: To compare the effects of nine months of exercise training and ibuprofen supplementation (given immeditately after exercise sessions) on bone and muscle in postmenopausal women. METHODS: In a double-blind randomized trial, participants (females: n = 90, mean age 64.8, SD 4.3 years) were assigned (computer generated, double blind) to receive supervised resistance training or stretching 3 days/week, and ibuprofen (400 mg, post-exercise) or placebo (i...
December 2016: Bone Reports
https://www.readbyqxmd.com/read/28326349/quantitative-in-vivo-micro-computed-tomography-for-assessment-of-age-dependent-changes-in-murine-whole-body-composition
#15
Kim L Beaucage, Steven I Pollmann, Stephen M Sims, S Jeffrey Dixon, David W Holdsworth
Micro-computed tomography (micro-CT) is used routinely to quantify skeletal tissue mass in small animal models. Our goal was to evaluate repeated in vivo micro-CT imaging for monitoring whole-body composition in studies of growth and aging in mice. Male mice from 2 to 52 weeks of age were anesthetized and imaged using an eXplore Locus Ultra and/or eXplore speCZT scanner. Images were reconstructed into 3D volumes, signal-intensity thresholds were used to classify each voxel as adipose, lean or skeletal tissue, and tissue masses were calculated from known density values...
December 2016: Bone Reports
https://www.readbyqxmd.com/read/28326348/effects-of-odanacatib-on-bone-matrix-mineralization-in-rhesus-monkeys-are-similar-to-those-of-alendronate
#16
Barbara M Misof, Paul Roschger, Charles Chen, Maureen Pickarski, Phaedra Messmer, Klaus Klaushofer, Le T Duong
Odanacatib (ODN) is a selective and reversible inhibitor of cathepsin K which is an important enzyme for the degradation of collagen I. Aim of the present work was the head-to-head comparison between the effects of ODN and alendronate (ALN) on bone mineralization density distribution (BMDD), based on quantitative backscattered electron imaging in relation to changes in histomorphometric mineralizing surface per bone surface (MS/BS) in 12-22 years old ovariectomized rhesus monkeys. Trabecular and cortical BMDD derived parameters from vertebrae and proximal tibiae were compared among vehicle (VEH, n = 8), odanacatib low dose (ODN-L, n = 8), odanacatib high dose (ODN-H, n = 8), and alendronate (ALN, n = 6) treated animals...
December 2016: Bone Reports
https://www.readbyqxmd.com/read/28326345/methionine-restriction-alters-bone-morphology-and-affects-osteoblast-differentiation
#17
Amadou Ouattara, Diana Cooke, Raj Gopalakrishnan, Tsang-Hai Huang, Gene P Ables
Methionine restriction (MR) extends the lifespan of a wide variety of species, including rodents, drosophila, nematodes, and yeasts. MR has also been demonstrated to affect the overall growth of mice and rats. The objective of this study was to evaluate the effect of MR on bone structure in young and aged male and female C57BL/6J mice. This study indicated that MR affected the growth rates of males and young females, but not aged females. MR reduced volumetric bone mass density (vBMD) and bone mineral content (BMC), while bone microarchitecture parameters were decreased in males and young females, but not in aged females compared to control-fed (CF) mice...
December 2016: Bone Reports
https://www.readbyqxmd.com/read/28326340/organ-and-tissue-level-properties-are-more-sensitive-to-age-than-osteocyte-lacunar-characteristics-in-rat-cortical-bone
#18
Nina Kølln Wittig, Fiona Linnea Bach-Gansmo, Mie Elholm Birkbak, Malene Laugesen, Annemarie Brüel, Jesper Skovhus Thomsen, Henrik Birkedal
Modeling and remodeling induce significant changes of bone structure and mechanical properties with age. Therefore, it is important to gain knowledge of the processes taking place in bone over time. The rat is a widely used animal model, where much data has been accumulated on age-related changes of bone on the organ and tissue level, whereas features on the nano- and micrometer scale are much less explored. We investigated the age-related development of organ and tissue level bone properties such as bone volume, bone mineral density, and load to fracture and correlated these with osteocyte lacunar properties in rat cortical bone...
June 2016: Bone Reports
https://www.readbyqxmd.com/read/28326299/the-association-between-dehydroepiandrosterone-sulfate-dhea-s-and-bone-mineral-density-in-korean-men-and-women
#19
Seung-Gun Park, Sena Hwang, Jong-Suk Kim, Kyung-Chae Park, Yuri Kwon, Kyong-Chol Kim
BACKGROUND: The relationship between dehydroepiandrosterone sulfate (DHEA-S) and bone mineral density (BMD) is controversial. And findings of most studies that have investigated this relationship are restricted to postmenopausal women. In this study, we investigated the relationship between serum DHEA-S and BMD in both men and women. METHODS: This cross-sectional study evaluated a total of 294 healthy Korean participants through a medical examination program. And a subgroup of 154 participants was subjected to a longitudinal analysis...
February 2017: Journal of Bone Metabolism
https://www.readbyqxmd.com/read/28325584/development-of-a-surrogate-model-based-on-patient-weight-bone-mass-and-geometry-to-predict-femoral-neck-strains-and-fracture-loads
#20
Mark Taylor, Egon Perilli, Saulo Martelli
Osteoporosis and related bone fractures are an increasing global burden in our ageing society. Areal bone mineral density assessed through dual energy X-ray absorptiometry (DEXA), the clinically accepted and most used method, is not sufficient to assess fracture risk individually. Finite element (FE) modelling has shown improvements in prediction of fracture risk, better than aBMD from DEXA, but is not practical for widespread clinical use. The aim of this study was to develop an adaptive neural network (ANN)-based surrogate model to predict femoral neck strains and fracture loads obtained from a previously developed population-based FE model...
February 27, 2017: Journal of Biomechanics
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