نتایج جستجو برای: trabecular maturity

تعداد نتایج: 35815  

Bahram Garmrudi Elahe Tohidi Elham Garmrudi Mahmood Gholyaf, Zahra Shakibaei

Introduction: This study aims to evaluate the dentomaxillofacial radiographic changes in end stage renal disease (ESRD) patients who were on hemodialysis. Methods: Parathyroid hormone (PTH), calcium, phosphorus and alkaline phosphatase (ALP) measurements, as well as Panoramic and periapical radiographs were obtained from seventy four patients with a history of end stage renal disease (ESRD). Re...

Journal: :Bone 2001
E Tanck J Homminga G H van Lenthe R Huiskes

In mature trabecular bone, both density and trabecular orientation are adapted to external mechanical loads. Few quantitative data are available on the development of architecture and mechanical adaptation in juvenile trabecular bone. We studied the hypothesis that a time lag occurs between the adaptation of trabecular density and the adaptation of trabecular architecture during development. To...

2014
Alessandra Pulliero Anke Seydel Anna Camoirano Sergio Claudio Saccà Marco Sandri Alberto Izzotti

Autophagy is an intracellular lysosomal degradation process induced under stress conditions. Autophagy also plays a major role in ocular patho-physiology. Molecular aging does occur in the trabecular meshwork, the main regulator of aqueous humor outflow, and trabecular meshwork senescence is accompanied by increased oxidative stress. However, the role of autophagy in trabecular meshwork patho-p...

2012
S. Enoki M. Higashiura M. Sato K. Tanaka T. Katayama

The increase of patients with osteoporosis is a social problem. Osteoporosis decreases bone strength and increases the risk of fracture. The finding of prevention and treatment methods is an urgent issue. Since cancellous bone is metabolically more active than cortical bone, cancellous bone is used for diagnosis of osteoporosis. There are a lot of studies about stress analysis of cancellous bon...

Journal: :American journal of physiology. Endocrinology and metabolism 2006
Natalie A Sims Karen Brennan Jenny Spaliviero David J Handelsman Markus J Seibel

Although testosterone (T) has striking effects on mature skeletal size and structure, it is not clear whether this depends exclusively on adult circulating levels of T or whether additional early-life factors also play a role. We have compared the androgen-deficient hypogonadal (hpg) mutant mouse with intact, orchidectomized, and T-treated non-hpg mice to determine relative contributions of adu...

2010
Kamil E Barbour Joseph M Zmuda Elsa S Strotmeyer Mara J Horwitz Robert Boudreau Rhobert W Evans Kristine E Ensrud Moira A Petit Christopher L Gordon Jane A Cauley

Quantitative computed tomography (QCT) can estimate volumetric bone mineral density (vBMD) and distinguish trabecular from cortical bone. Few comprehensive studies have examined correlates of vBMD in older men. This study evaluated the impact of demographic, anthropometric, lifestyle, and medical factors on vBMD in 1172 men aged 69 to 97 years and enrolled in the Osteoporotic Fractures in Men S...

2014
Haibin Ling Peiyi Li Vasileios Megalooikonomou

Cross gender-age trabecular texture analysis in cone beam computed tomography Purposes: To investigate whether multiple texture features in different regions-of-interest (ROIs) on cone beam computed tomography (CBCT) are correlated with gender-age variation of trabecular patterns. Methods: CBCT volumes from 96 subjects were used. The data set was divided into four gender-age subgroups including...

2012
Timothy M. Ryan Colin N. Shaw

Understanding the mechanically-mediated response of trabecular bone to locomotion-specific loading patterns would be of great benefit to comparative mammalian evolutionary morphology. Unfortunately, assessments of the correspondence between individual trabecular bone features and inferred behavior patterns have failed to reveal a strong locomotion-specific signal. This study assesses the relati...

2018
Cynthia Blanton

Nutrition is a primary modifiable determinant of chronic noncommunicable disease, including osteoporosis. An etiology of osteoporosis is the stimulation of bone-resorbing osteoclasts by reactive oxygen species (ROS). Dietary polyphenols and probiotics demonstrate protective effects on bone that are associated with reduced ROS formation and suppressed osteoclast activity. This study tested the e...

Journal: :Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research 2005
Maria Benito Branimir Vasilic Felix W Wehrli Benjamin Bunker Michael Wald Bryon Gomberg Alexander C Wright Babette Zemel Andrew Cucchiara Peter J Snyder

UNLABELLED We evaluated the effect of testosterone treatment on trabecular architecture by microMRI in 10 untreated severely hypogonadal men. After 2 years, microMRI parameters of trabecular connectivity improved significantly, suggesting the possibility that testosterone improves trabecular architecture. INTRODUCTION Osteoporosis, characterized by low BMD and diminished bone quality, is a si...

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