statement of problem: it is not known whether endochondral and intramembranous bones have distinct biological characteristics. octacalcium phosphate (ocp), a hydroxyapatite precursor, has been reported to stimulate bone formation after being implanted in parietal bone defects of rats. purpose: the present study was designed to investigate the response of endochondral and intramembranous bones t...

BACKGROUND Low skeletal muscle mass is associated with deterioration of bone mineral density. Because serum creatinine can serve as a marker of muscle mass, we evaluated the relationship between serum creatinine and bone mineral density in an older population with normal renal function. METHODS Data from a total of 8,648 participants (4,573 men and 4,075 postmenopausal women) aged 45-95 years...

We present experimental evaluation of a new fully-automatic method for accurate knee cartilage segmentation based on 40 test and 60 training images of the SKI10 set. The method is comprised of three main steps: bone segmentation, bone-cartilage interface (BCI) classification, and cartilage segmentation. For cartilage segmentation, reference patches are extracted from training images by comparin...

background: the problem of bone defects during treatments of bone lesions, especially cranial trauma, and also during craniotomy operations indicates isolation of osteoblasts and culturing them for filling these bone effects. methods: bone tissue specimens were obtained from 6 patients’ carvaria undergoing craniotomy surgery operations in al-zahra teaching hospital and transferred to lab. these...

introduction: the teratogenic effect of caffeine depends on the dosage and the route of administration. a daily oral dose of caffeine (80 mg/kg) is tetrogenic for rat. in present study, the teratogenic effects of caffeine on the development of bones and the resoption of skeletal cartilage in the rat embryo were quantitatively evaluation. materials and methods: three groups of pregnant rats were...

osteoporosis (op) is a frequent complication of rheumatoid arthritis (ra) and longitudinal studies have documented increased rate of bone loss in ra patients. to determine the frequency of low bone mass as well as the influence of disease duration and corticosteroid use on bone mass in patients with ra, 88 patients with ra and 112 age matched controls were studied. bone densitometry was perform...

The max-k-cut problem is to partition the vertices of a weighted graph G = (V, E) into k ≥ 2 disjoint subsets such that the weight sum of the edges crossing the different subsets is maximized. The problem is referred as the max-cut problem when k = 2. In this work, we present a multiple operator heuristic (MOH) for the general max-k-cut problem. MOH employs five distinct search operators organi...

PURPOSE To determine the predictive value of the mean platelet volume (MPV) and the MPV/platelet count ratio on the development of isolated bone metastasis in patients with breast cancer. METHODS A total of 121 previously untreated female patients with isolated bone metastases from breast cancer (group 1) were included in this retrospective cohort study. The patients enrolled in this study ha...

INTRODUCTION Arthritic bone loss in the joints of patients with rheumatoid arthritis is the result of a combination of osteoclastic bone resorption and osteoblastic bone formation. This process is not completely understood, and especially the importance of local inflammation needs further investigation. We evaluated how bone formation and bone resorption are altered in experimental autoimmune a...

Nanosilicate-polysaccharide composite hydrogels are a well-studied class of materials in regenerative medicine that combine good 3D printability, staining, and biological properties, making them an excellent candidate material for complex bone scaffolds. The aim this study was to develop hydrogel suitable printing has radiological properties similar those the natural protocols their histologica...