The cell-free endocranial surface of young adult rat parietal bones was used as a substrate for osteoclastic bone resorption, either without prior treatment, or after incubation of the parietal bones with collagenase or neonatal rat calvarial cells. Untreated, the endocranial surface consisted of unmineralized organic fibres; incubation with calvarial cells or collagenase caused disruption and ...

introduction: the low regeneration of bone in defective bones causes therapeutic problems. various strategies to assess the healing of bone defects have been used which they include histological and histo-chemical analysis in an invasive study. the purpose of this study was to determine the ultrasonic parameters of bone as a promising noninvasive technology for assessing bone repair process. ma...

OBJECTIVES This study aims at examining the ultrastructure of bone-derived biological apatite (BAp) from a series of small vertebrates and the effect of thermal treatment on its physiochemical properties. MATERIALS AND METHODS Femurs/fin rays and vertebral bodies of 5 kinds of small vertebrates were firstly analyzed with X-ray microtomography. Subsequently, BAp was obtained with thermal treat...

Hepatocyte growth factor (HGF) is a novel potential therapy for improving bone health in patients with type II diabetes and hypertension, but its effect on the molecular structure not revealed yet. Here, X-ray absorption near edge (XANES) spectroscopy was used to explore effects elicited by HGF chemical structure. This study assessed local calcium (Ca) phosphorus (P) coordination of diabetic hy...

The study aimed to compare the effects of different cryopreservation temperatures on mechanical properties and determine optimal temperature for bones in Japanese quail. Bone biomechanical tests are getting more attention but, fresh not always available testing have a limited lifespan. Cryopreservation biological specimens is often needed during tissue preparation testing. In study, tibiotarsi ...

OBJECTIVE To study the diaphyseal Nutrient Foramina (NF) of dry Pakistani fibulae morphometrically and topographically. STUDY DESIGN Descriptive cross-sectional study. PLACE AND DURATION OF STUDY Anatomy Department, Allama Iqbal Medical College, Lahore, from December 2013 to April 2014. METHODOLOGY The materials comprised 168 dried fibulae, 80 of left side and 88 of right side. Length of ...

gressive tumors that account for 4.0-9.5% of all primary bone neoplasms (1, 2). GCT predominates in the long tubular bones, but does, in rare cases, occur in the small bones of the hands and feet. Most GCT cases occur at the sacrum, with only very rare cases occurring during pregnancy (3, 4). We report a case of a GCT involving a metacarpal bone with rapid growth during pregnancy, which was mis...

The mechanisms by which bone resorbing osteoclasts form and are activated by hormones are poorly understood. We show here that the generation of oxygen-derived free radicals in cultured bone is associated with the formation of new osteoclasts and enhanced bone resorption, identical to the effects seen when bones are treated with hormones such as parathyroid hormone (PTH) and interleukin 1 (IL-1...

intraosseous ganglia can affect the carpal bones of the hand and must be considered in the differential diagnosis of wrist pain. a 38-year-old female presented with a 14-month history of left wrist pain and a radiolucent cystic lesion was seen computed tomography (ct) scanning. characteristic radiographic findings of a cyst in association with a fine sclerotic rim was apparent. we report an unu...

Star formation primarily occurs in filaments where magnetic fields are expected to be dynamically important. The largest and densest trace spiral structure within galaxies. Over a dozen of these dense ($\sim$10$^4$\,cm$^{-3}$) long ($>$10\,pc) have been found the Milky Way, they often referred as "bones." Until now, none bones had their field resolved mapped entirety. We introduce SOFIA legacy ...