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| Registros recuperados: 31 | |
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| Fernandes,Jovanir Inês Müller; Murakami,Alice Eiko; Scapinello,Claudio; Moreira,Ivan; Varela,Elkin Varela. |
| The effect of four levels of dietary vitamin K (vit. K) on production, egg quality and bone structure of laying hens near the end of the production cycle were studied. A total of 192 Hy-Line, W-36 hens, 67 weeks of age, were distributed into a completely randomized design with four treatments (0, 2, 8, 32 mg vit. K/kg of diet), six replicates and eight birds per experimental unit. Corn-soybean-meal basal diets were isonitrogenous (15.5% crude protein), isoenergetic (2,790 kcal ME/kg), isocalcium (4.25% Ca) and isophosphorus (0.40% available P). Vitamin K supplementation did not alter egg mass, feed intake, feed conversion (kg/kg), bone breaking strength, specific egg gravity, eggshell weight, thickness and percentage of thin and cracked shell. A linear... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Eggshell quality; Layer; Osteoporosis. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000300013 |
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| Mastaglia,Silvina. |
| La sarcopenia asociada a la edad es una condicion caracterizada por una disminucion de la masa y fuerza muscular de causa multifactorial. El hueso y el musculo son dos tejidos que se encuentran interrelacionados entre si. Las fuerzas mecanicas aplicadas sobre el hueso son aquellas originadas por la contraccion muscular, lo cual condiciona las propiedades del hueso como masa, tamano, forma y arquitectura. Por la tanto, la disminucion de la masa y fuerza muscular conduciran a una disminucion de la cantidad y calidad osea. De esta manera, la sarcopenia es una condicion que en adultos mayores incrementa el riesgo de caidas y fracturas por fragilidad osea, por lo que se propone el termino de osteosarcopenia para identificar aquellos adultos mayores con mayor... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Osteosarcopenia; Osteoporosis; Fracturas. |
| Ano: 2016 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0325-29572016000300004 |
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| Zeni,Susana Noemí. |
| La prevalencia de dos desórdenes crónicos como la osteoporosis y la obesidad se encuentra en aumento. La fisiopatología de ambas alteraciones metabólicas es multifactorial e incluye factores genéticos, factores ambientales y hormonales. Diversos estudios clínicos y experimentales demuestran la existencia de una interacción entre el tejido adiposo y el esqueleto, similar a la que ocurre entre las patologías mencionadas. Si bien se pensaba que la obesidad protegía al hueso, actualmente se postula que un exceso de tejido graso, fundamentalmente grasa abdominal, sería un factor de riesgo para el desarrollo de osteoporosis y fracturas por fragilidad. Diversos factores secretados por el tejido graso incrementados por efecto de la obesidad jugarían un rol clave... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hueso; Remodelamiento óseo; Adipocitos; Estrés oxidativo; Obesidad; Osteoporosis. |
| Ano: 2016 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0325-29572016000300006 |
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| LUCINDA,LEDA M.F.; AARESTRUP,BEATRIZ J.V.; REBOREDO,MAYCON M.; PAINS,THAIS D.A.; CHAVES,RAPHAEL Z.; REIS,JOÃO E.P.; LOUZADA,MÁRIO J.Q.; GUERRA,MARTHA O.. |
| ABSTRACT Evaluate the effect of the extract of Ginkgo biloba in the bone alkaline phosphatase, bone mineral density, in the mechanical properties of the tibia in rats with glucocorticoid-induced-osteoporosis. After osteoporosis induction, the rats were divided into five groups: Osteoporosis; EGb1 (28 mg/Kg); EGb2 (56 mg/Kg); alendronate (0.2 mg/animal) and control. The animals were treated during 20 and 30 days. The control group was compared with the osteoporosis’s (Student’s t-test), while the other were analyzed by ANOVA test followed by Tukey/Dunnett’T3 (p<0.05). In the osteoporosis group the bone alkaline phosphatase, bone mineral density, the bone stiffness, the maximum load and the resilience were reduced. The bone alkaline phosphatase values... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bone density; DEXA scan; Ginkgo biloba; Osteoporosis. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000602833 |
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| Pino,Ana María; Rosen,Clifford J; Rodríguez,J. Pablo. |
| The formation, maintenance, and repair of bone tissue involve close interlinks between two stem cell types housed in the bone marrow: the hematologic stem cell originating osteoclasts and mesenchymal stromal cells (MSCs) generating osteoblasts. In this review, we consider malfunctioning of MSCs as essential for osteoporosis. In osteoporosis, increased bone fragility and susceptibility to fractures result from increased osteoclastogenesis and insufficient osteoblastogenesis. MSCs are the common precursors for both osteoblasts and adipocytes, among other cell types. MSCs' commitment towards either the osteoblast or adipocyte lineages depends on suitable regulatory factors activating lineage-specific transcriptional regulators. In osteoporosis, the reciprocal... |
| Tipo: Journal article |
Palavras-chave: MSCs; Osteoporosis; Adipogenesis; Bone marrow microenvironment. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602012000300009 |
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| Roldan,Eugenia Quiros; Brianese,Nigritella; Raffetti,Elena; Focà,Emanuele; Pezzoli,Maria Chiara; Bonito,Andrea; Ferraresi,Alice; Lanza,Paola; Porcelli,Teresa; Castelli,Francesco. |
| ABSTRACT Introduction: Osteoporosis represents one of the most frequent comorbidity among HIV patients. The current standard method for osteoporosis diagnosis is dual-energy X-ray absorptiometry. Calcaneal quantitative ultrasound can provide information about bone quality. The aims of this study are to compare these two methods and to evaluate their ability to screen for vertebral fracture. Methods: This cross-sectional study was conducted in HIV patients attending the Clinic of Infectious and Tropical Diseases of Brescia during 2014 and who underwent lumbar/femoral dual-energy X-ray absorptiometry, vertebral fracture assessment and calcaneal quantitative ultrasound. The assessment of osteoporosis diagnostic accuracy was performed for calcaneal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Osteoporosis; HIV; Calcaneal ultrasound. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702017000600581 |
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| Bezerra,M.M.; Brito,G.A.C.; Ribeiro,R.A.; Rocha,F.A.C.. |
| Matrix metalloproteinases (MMP) are considered to be key initiators of collagen degradation, thus contributing to bone resorption in inflammatory diseases. We determined whether subantimicrobial doses of doxycycline (DX) (<=10 mg kg-1 day-1), a known MMP inhibitor, could inhibit bone resorption in an experimental periodontitis model. Thirty male Wistar rats (180-200 g) were subjected to placement of a nylon thread ligature around the maxillary molars and sacrificed after 7 days. Alveolar bone loss (ABL) was measured macroscopically in one hemiarcade and the contralateral hemiarcade was processed for histopathologic analysis. Groups of six animals each were treated with DX (2.5, 5 or 10 mg kg-1 day-1, sc, 7 days) and compared to nontreated (NT) rats. NT... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Tetracyclines; Doxycycline; Metalloproteinases; Periodontitis; Osteoporosis; Bone resorption; Inflammation. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000500015 |
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| Cutrim,D.M.S.L.; Pereira,F.A.; Paula,F.J.A. de; Foss,M.C.. |
| We assessed the effect of chronic hyperglycemia on bone mineral density (BMD) and bone remodeling in patients with type 2 diabetes mellitus. We investigated 42 patients with type 2 diabetes under stable control for at least 1 year, 22 of them with good metabolic control (GMC: mean age = 48.8 ± 1.5 years, 11 females) and 20 with poor metabolic control (PMC: mean age = 50.2 ± 1.2 years, 8 females), and 24 normal control individuals (CG: mean age = 46.5 ± 1.1 years, 14 females). We determined BMD in the femoral neck and at the L2-L4 level (DEXA) and serum levels of glucose, total glycated hemoglobin (HbA1), total and ionic calcium, phosphorus, alkaline phosphatase, follicle-stimulating hormone, intact parathyroid hormone (iPTH), 25-hydroxyvitamin D (25-OH-D),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diabetes mellitus; Osteoporosis; Bone mineral density; Glycemic control; Bone markers; Insulin-like growth factor I. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000200008 |
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| Pereira,F.A.; Castro,J.A.S. de; Santos,J.E. dos; Foss,M.C.; Paula,F.J.A. |
| Data about the impact of bariatric surgery (BS) and subsequent weight loss on bone are limited. The objective of the present study was to determine bone mineral density (BMD), bone remodeling metabolites and hormones that influence bone trophism in premenopausal women submitted to BS 9.8 months, on average, before the study (OGg, N = 16). The data were compared to those obtained for women of normal weight (CG, N = 11) and for obese women (OG, N = 12). Eight patients in each group were monitored for one year, with the determination of BMD, of serum calcium, phosphorus, magnesium, parathyroid hormone, 25-hydroxyvitamin D, insulin-like growth factor-I (IGF-I) and osteocalcin, and of urinary calcium and deoxypyridinoline. The biochemical determinations were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Osteoporosis; Obesity; Bone mineral density; Bone turnover; Bariatric surgery. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000400009 |
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| Castro,T.C.M.; Terreri,M.T.; Szejnfeld,V.L.; Castro,C.H.M.; Fisberg,M.; Gabay,M.; Hilário,M.O.E.. |
| We evaluated spine bone mineral density (BMD) in Brazilian children with juvenile systemic lupus erythematosus (JSLE) in order to detect potential predictors of reduction in bone mass. A cross-sectional study of BMD at the lumbar spine level (L2-L4) was conducted on 16 female JSLE patients aged 6-17 years. Thirty-two age-matched healthy girls were used as control. BMD at the lumbar spine was measured by dual-energy X-ray absorptiometry. Weight, height and pubertal Tanner stage were determined in patients and controls. Disease duration, mean daily steroid doses, mean cumulative steroid doses and JSLE activity measured by the systemic lupus erythematosus disease activity index (SLEDAI) were determined for all JSLE patients based on their medical charts. All... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Systemic lupus erythematosus; Children; Adolescents; Bone mineral density; Osteoporosis; Corticosteroids. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002001000008 |
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| Lima,C.A.; Lyra,A.C.; Mendes,C.M.C.; Lopes,M.B.; Coqueiro,F.G.; Rocha,R.; Santana,G.O.. |
| Inflammatory bowel disease (IBD) is associated with low bone mineral density (BMD). In this study, the association between disease severity and BMD in patients with IBD was evaluated. Associations between BMD and the Montreal classification, disease activity and drug therapy were also tested. A cross-sectional prevalence study with a comparison group was conducted. One hundred and twenty-eight patients were evaluated: 68 patients with ulcerative colitis (UC), and 60 with Crohn's disease (CD). The control group consisted of 67 healthy subjects. All patients and controls had BMD measured and in IBD patients, current medications, hospitalization, and disease location, extent and phenotype, according to the Montreal classification, were recorded. Multiple... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bone mineral density; Ulcerative colitis; Crohn’s disease; Inflammatory bowel disease; Osteoporosis. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017001200614 |
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| Taveira,A.T.A.; Pereira,F.A.; Fernandes,M.I.M.; Sawamura,R.; Nogueira-Barbosa,M.H.; Paula,F.J.A.. |
| Bone mass loss is a major complication of chronic cholestatic liver disease (CCD). However, the long-term impact of CCD on bone mass acquisition is unknown. We longitudinally assessed bone mineral density (BMD) and factors involved in bone remodeling in 9 children and adolescents with CCD Child-Pugh A (5 boys/4 girls) and in 13 controls (6 boys/7 girls). The groups were evaluated twice, at baseline (T0) and after 3 years (T1), when osteocalcin, deoxypyridinoline, 25-hydroxyvitamin-D, parathyroid hormone, insulin-like growth factor-I (IGF-I), and BMD (L1-L4, proximal femur and total body) were determined. Serum levels of receptor activator for nuclear factor kB ligand (RANKL) and osteoprotegerin were measured only at T1. Lumbar spine BMD was reanalyzed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hepatic osteodystrophy; Insulin-like growth factor-I; Osteoporosis; Bone mineral density; Bone remodeling. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2010001100017 |
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| Paiva,A.G.; Yanagihara,G.R.; Macedo,A.P.; Ramos,J.; Issa,J.P.M.; Shimano,A.C.. |
| Osteoporosis has become a serious global public health issue. Hence, osteoporotic fracture healing has been investigated in several previous studies because there is still controversy over the effect osteoporosis has on the healing process. The current study aimed to analyze two different periods of bone healing in normal and osteopenic rats. Sixty, 7-week-old female Wistar rats were randomly divided into four groups: unrestricted and immobilized for 2 weeks after osteotomy (OU2), suspended and immobilized for 2 weeks after osteotomy (OS2), unrestricted and immobilized for 6 weeks after osteotomy (OU6), and suspended and immobilized for 6 weeks after osteotomy (OS6). Osteotomy was performed in the middle third of the right tibia 21 days after tail... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Osteoporosis; Osteotomy; Fracture healing; Immobilization; Rats. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000300708 |
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| Registros recuperados: 31 | |
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