Bone Metabolism
Mostrando 37-48 de 292 artigos, teses e dissertações.
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37. Elevated levels of plasma osteoprotegerin are associated with all-cause mortality risk and atherosclerosis in patients with stages 3 to 5 chronic kidney disease
Osteoprotegerin (OPG) regulates bone mass by inhibiting osteoclast differentiation and activation, and plays a role in vascular calcification. We evaluated the relationship between osteoprotegerin levels and inflammatory markers, atherosclerosis, and mortality in patients with stages 3-5 chronic kidney disease. A total of 145 subjects (median age 61 years, 6
Braz J Med Biol Res. Publicado em: 22/08/2014
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38. Two and three-dimensional morphometric analysis of trabecular bone using X-ray microtomography (µCT)
INTRODUCTION: Trabecular bones have a porous microstructure and can be modeled as linear elastic solids, heterogeneous and anisotropic. In the literature, few investigations have compared the two- dimensional (2D) and three-dimensional (3D) morphometric analyses of cancellous bone. METHODS: In this investigation eighteen cylindrical samples of cancellous bon
Rev. Bras. Eng. Bioméd.. Publicado em: 2014-06
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39. Obesity and inflammation and the effect on the hematopoietic system
Bone marrow is organized in specialized microenvironments known as 'marrow niches'. These are important for the maintenance of stem cells and their hematopoietic progenitors whose homeostasis also depends on other cell types present in the tissue. Extrinsic factors, such as infection and inflammatory states, may affect this system by causing cytokine dysregu
Rev. Bras. Hematol. Hemoter.. Publicado em: 2014-04
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40. Bone healing of mandibular critical-size defects in spontaneously hypertensive rats
Few articles have shown changes in bone metabolism caused by hypertension. The objective of this study was to investigate the relationship between hypertension and bone healing. Circular critical-size defects 5 mm and 2 mm in diameter were created, respectively, on the left and right side of the mandible in 40 spontaneously hypertensive and 40 control Wistar
Braz. oral res.. Publicado em: 2013-09
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41. Influence of dialysis duration and parathyroid hormone on the clinical and radiographic oral conditions of pre-transplant patients with chronic kidney disease
AIM: To evaluate the oral conditions of patients with chronic kidney disease undergoing dialysis and to determine the influence of dialysis duration and bone metabolism on the prevalence and severity of the alterations found. METHODS: The simplified oral hygiene index (OHI-S), prevalence of dental caries (decayed, missing filled teeth index, DMFT), and the p
Braz. J. Oral Sci.. Publicado em: 2013-06
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42. Serum 25-hydroxyvitamin D and biochemical markers of bone metabolism in patients with juvenile idiopathic arthritis
Our objective was to evaluate the concentrations of serum 25-hydroxyvitamin D [25(OH)D], serum calcium, serum phosphorus, alkaline phosphatase, and parathormone (PTH) in patients with polyarticular juvenile idiopathic arthritis (JIA) and to associate them with disease duration and activity, bone mineral density and use of medications. In a cross-sectional an
Braz J Med Biol Res. Publicado em: 11/01/2013
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43. Papel dos receptores nucleares ativados por proliferadores de peroxissomos (PPAR) na periodontite induzida em ratos. / Role of peroxisome proliferator activated nuclear receptor (PPAR) in induced periodontitis in rats.
Este estudo investigou o efeito da Roziglitazona (RTZ) sobre a perda óssea alveolar induzida pela periodontite (POAIP). Durante 3 semanas, ratos receberam sal puro de RTZ (i.p.) ou a formulaço comercial AvandiaÒ (v.o.); os grupos controles receberam os repectiovos veículos (DMSO ou CMC). Duas semanas após o inicio do tratamento
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/07/2012
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44. Ciclooxigenase-2 modula in vivo a expressão de marcadores da osteoclastogênese e genes envolvidos no metabolismo ósseo em resposta ao lipopolissacarídeo bacteriano / Ciclooxygenase-2 modulates in vivo the expression of osteoclastiogenesis makers and genes involved in bone metabolism in response to bacterial lipopolysaccharide
During an inflammatory response, several mediators are locally released in order to stimulate cellular and humoral immune response. Through the action of cyclooxygenase and lipoxygenase enzymes structural changes occur in the arachidonic acid chain leading to synthesis of prostaglandins or leukotrienes and lipoxins, respectively. Such mediators are responsib
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/06/2012
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45. Associação entre densidade mineral óssea e status da vitamina D em mulheres idosas
Vitamin D has a fundamental role in bone metabolism and skeletal integrity, and is also associated with the appearance of several diseases. Receptors for this vitamin are present in all tissues, which explains these associations. Decreased calcium absorption with advancing age is strongly related to declining vitamin D levels. Use of excess clothing, little
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/05/2012
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46. Efeito dos prebióticos oligofrutose, galacto-oligossacarídeos e de sua combinação no metabolismo ósseo de ratas wistar na meia-idade / Effect of oligofructose and galactooligosaccharides on bone metabolism in aging female wistar rats
Prebióticos são componentes alimentares não-digeríveis que conferem benefícios à saúde do hospedeiro por meio da modulação de sua microbiota gastrintestinal, tais como a oligofrutose e os galacto-oligossacarídeos (GOS). Diversos estudos têm sugerido que estes dois prebióticos podem estar associados à melhora da saúde óssea. Nas mulheres, a per
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/03/2012
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47. Immunosuppressants: implications in Orthodontics
INTRODUCTION: There are medications capable of affecting bone metabolism and the rate of tooth movement. Among these medications are the immunosuppressants, which act by repressing the action of T lymphocytes, however they can cause bone loss and consequently lead to osteoporosis. Osteoporosis is a common complication following kidney, heart, liver or lung t
Dental Press Journal of Orthodontics. Publicado em: 2012-04
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48. Efeitos da hiperlipidemia e sinvastatina sobre a morfologia, resistência mecânica e capacidade osteogênica em camundongos knockout do gene do receptor de LDL (LDLr-/-) / Hyperlipidemia and effects of simvastatin on the morphology, mechanical strength and osteogenic capacity in mice knockout LDL receptor gene (LDLr-/-)
Introdução: O tecido ósseo pode sofrer alterações em suas propriedades bioquímicas, morfológicas, bioquímicas e biomecânicas sob a influência de determinadas doenças. Níveis elevados de colesterol e hiperlipidemia podem causar alterações no osso, comprometendo a osteogênese e resistência mecânica. A sinvastatina é um medicamento do grupo de
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/12/2011