Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 24 for “"Bone mineralization"”.
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The Distribution of Bone Sialoprotein in Bone Mineralization
Bone consists of an organic matrix and hydroxyapatite (HA) crystals. The mechanism by which bone mineralizes the organic matrix is not clearly understood. Collagen provides the framework of bone and may even play a role in the nucleation of the HA crystals through the hole zones within collagen …
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Studies on the Role of Vitamin D in the Mineralization of Bone: A Vitamin D-dependent Serum Protein That Stimulates the Incorporation of 45 Calcium by Bone Cells in Vitro
… in the 1920's established that rickets, a bone disease in which newly synthesized osteoid matrix does not calcify, was caused by a dietary deficiency in the fat-soluble vitamin D. These investigators concluded that vitamin D was necessary for the normal mineralization of bone. After 50 …
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Effects of dietary Ca concentration on the performance of broiler chicks fed various sources of dietary P with and without phytase supplementation
… the phytase interactions did not influence bone mineralization (P ≤ 0.05). So, the diet is potentially more appetizing with phytase supplementation. Calcium x phosphorus interaction was driving bone mineralization, but not influencing BWG or FI (P ≤ 0.05). Additionally, bone mineralization …
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Bone Mineral Density Analysis for Evaluation of Cervical Vertebral Maturation
… include all factors that may be involved in bone maturation. For instance, the current CVM cannot account for changes of bone mineral density (BMD), which result from active bone remodeling during growth. Thus, the objective of this study was to describe bone density changes in the cervical …
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The Role of Nutrition and Administration of Estrogen in Holstein Calf Growth, Development, and Adenogenesis
… understand how plane of nutrition influences BW, bone mineralization, and organ growth during the preweaning phase of development in Holstein calves. Calves offered a higher plane of nutrition experienced greater BW gains, increased bone mineralization, and accelerated organ growth. The second …
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Alkaline Phosphatase Activity in Wound Healing in Normal and Scorbutic Guinea Pigs
… reaction on polyphosphates to initiate bone mineralization (7,8,9). Other reactions of phosphatases in so far as synthetic or degradative reactions on protein or polysaccharride molecules is at best speculative in nature (10). Although these reactions are not understood, such phophatase …
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Evaluation of Feed Ingredients and Feed Additives on Poultry Performance and Health
… on laying hen performance, eggshell quality, and bone mineralization. There were minimal differences in performance regardless of Ca source and concentration, however the inclusion of 4.10% limestone resulted in the lowest performance. There was a Ca source main effect for all eggshell quality …
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Bone growth following demineralized bone matrix implantation requires angiogenesis
… ossification in mice by implanting demineralized bone matrix (DBM) proximal to the femur to induce ectopic bone formation. TNP-470, a drug known to be anti-angiogenic, was used to inhibit vascularization during the time course of de novo bone formation in order to define the role of angiogenesis …
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Efficacy and safety of a new genetically modified phytase for improving dietary phosphorus utilization of swine and poultry
… both middle toes for turkeys were removed for bone analysis. In pigs performance, bone measurements, and digestibilities of P and Ca increased as levels of phytase increased. Concentration of P and Ca in the feces decreased as dietary phytase increased. In turkeys, BW gain and toe ash increased …
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Gender differences in mandibular bone mineral distribution with aging
… (CBCT) can determine relative differences in bone mineral density distribution using clinical images of patients’ mandibular bone and 2) if the relative differences can be used to detect the effects of gender and age on bone mineral density distribution. Methods: Sixty six clinical CBCT images …
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Vitamin D and Calcium Supplementation For Prevention of Falls and Fractures In Older Adults
… for these injuries (Inderjeeth & Poland, 2010). Bone health is one important aspect of preventing fragility fractures. Adequate nutrition, especially adequate calcium and vitamin D is necessary for bone mineralization (Nieves, 2005). Many older adults do not obtain enough of these nutrients from …
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The effects of dietary probiotic inclusion on skeletal health of poultry and its possible mechanisms
… studies have shown that probiotics improve bone health in humans and rodents with less information available on the skeletal health of avians given probiotics. The objective of this study was to determine the effects of probiotic supplementation on bone health of egg-laying and meat-type …
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Expression and Function(s) of Parathyroid Hormone- Related Peptide in Intramembranous Bone Formation by Neonatal Rat Calvarial Cells In Vitro
… of the skeleton. The shortening of appendicular bones in knockout mice is explained by an effect of PTHrP on endochondral bone growth where it functions to inhibit the hypertrophy of chondrocytes in the epiphyseal growth plate. Whether or not PTHrP influences intramembranous ossification is less …
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1,25- dihydroxycholecalciferol-glycoside supplementation for LPS - challenged broiler chickens
… on feed intake, feed conversion, serum levels of bone alkaline phosphatase, calcium, and phosphorus, and calcium and phosphorus concentration in the tibia (P > 0.05). The IL-10 level in the jejunum was higher (P = 0.011) in SUP+LPS birds than in the CON and CON+LPS groups. Among birds challenged …
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Assessment of a Nutritional Rehabilitation Model in Two Modern Broilers and Their Jungle Fowl Ancestor: A Model for Better Understanding Childhood Undernutrition
… the effects of malnutrition on performance, bone mineralization, intestinal morphology and paracellular intestinal leakage across three diverse genetic backgrounds. 2015 Cobb chicken, 1995 Cobb chicken, and the Jungle Fowl were allocated into four different dietary treatments. Dietary …
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Aberrant Ras/MAPK signaling in skeletal development
… the in vivo role of MAPK signaling during bone development is still controversial, with some studies supporting a positive role of the MAPK pathway during this process, and others arguing for a suppressive role. To analyze in depth the bone defects caused by aberrant K-ras/MAPK signaling …
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Evaluation and Selection of a Bacillus based Direct-Fed Microbial Candidate for In situ Enzyme Production to Improve Gut Health Integrity, Bone Quality and Growth Performance in Poultry
… resulting in an increase of performance and bone quality parameters, along with maintenance of the beneficial microflora in the GIT. Moreover, due to the wide availability of DDGS from the ethanol industry, a different set of experiments including 8% of DDGS in the grower diet were developed. …
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Requirements for digestible calcium by growing pigs
… to 85 kg as indicated by growth performance and bone ash. In Exp. 1, the hypothesis was that the requirement to maximize growth performance of 50- to 85-kg pigs expressed as the STTD Ca:STTD P ratio, is less than 1.35:1. Fifteen corn-soybean meal based diets were formulated to contain 0.14, 0.27, …
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The effect of mechanical loading on bone during growth
Bone modeling and remodeling processes occur everyday during one's life, but change the skeleton in distinct ways. The primary function of bone modeling is to increase net bone mass and shape skeletal structure during growth, while remodeling has an essential role in renewing the bone by replacing …
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