نتایج جستجو برای: active bone formation

تعداد نتایج: 1210715  

A. Shahverdi M. Aminlari M. B. Eslaminejad, S. Bahmanpour T. Karimi

In recent years, considerable advances have been made in the field of regenerative medicine. Unlikeembryonic stem cells, which pose the problems of ethical concerns and cause severe immunological reactions as well as neoplasma formation after transplantation, umbilical cord blood is a primitive source ofmesenchymal stem cells that covers the benefits of both embryonic and adult stem cells. It h...

Journal: :International Journal of Molecular Sciences 2021

Bone morphogenetic proteins (BMPs) were originally identified as the active components in bone extracts that can induce ectopic formation. In recent decades, their key role has broadly expanded beyond physiology and pathology. Nowadays, BMP pathway is considered an important player vascular signaling. Indeed, mutations genes encoding different of cause various severe diseases. Their signaling c...

Journal: :journal of dentistry, tehran university of medical sciences 0
ar rokn dental implant research center, school of dentistry, tehran university of medical sciences, tehran, iran. n moslemi b eslami h khandagh abadi m paknejad

both anorganic bovine bone (abb) and β-tricalcium phosphate (β-tcp) are used in clinical practice as bone substitute materials, but there is limited data comparing these two materials in standardized defects. the aim of this study was to histologically evaluate the effectiveness of abb and β-tcp in the healing of experimentally induced bone defects.eighteen bone defects were created on the calv...

ژورنال: مجله دندانپزشکی 1987
خیاط, اکبر ,

This study was perfomed on twenty five teeth which showed radiographic lesions( 6mm over 25 mm). the teeth were arranged in seven different groups and root canal therapy ( by warm Gutta-percha technique) as surgical intervention were performed at various time intervals. In this investigation, histologic studies of the periapical tissues begin shortly after elimination of the root canal system w...

Journal: :Blood 2007
Therese Standal Niels Abildgaard Unn-Merete Fagerli Berit Stordal Oyvind Hjertner Magne Borset Anders Sundan

The bone disease in multiple myeloma is caused by an uncoupling of bone formation from bone resorption. A key difference between patients with and patients without osteolytic lesion is that the latter have fewer and less active osteoblasts. Hepatocyte growth factor (HGF) is often produced by myeloma cells and is found at high concentrations in the bone marrow of patients with multiple myeloma. ...

2008
Samit Kumar Nandi Biswanath Kundu Samir Kumar Ghosh Dipak Kumar De Debabrata Basu

The present study was undertaken to evaluate porous hydroxyapatite (HAp), the powder of which was prepared by a novel aqueous solution combustion technique, as a bone substitute in healing bone defects in vivo, as assessed by radiologic and histopathologic methods, oxytetracycline labeling, and angiogenic features in Bengal goat. Bone defects were created in the diaphysis of the radius and eith...

Journal: :Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research 2002
Paul A Price Jeffrey M Caputo Matthew K Williamson

We previously described the discovery of a fetuin-matrix Gla protein (MGP)-mineral complex in the serum of rats treated with the bone-active bisphosphonate etidronate and showed that the appearance of this complex in serum correlates with the inhibition of bone mineralization by etidronate. In this study we show that the inhibition of bone resorption by treatment with the hormone calcitonin, th...

2013
Kuo-Yu Chen Kuen-Cherng Lin Yueh-Sheng Chen Chun-Hsu Yao

As Gu-Sui-Bu (GSB) is a commonly used Chinese medical herb for therapeutic treatment of bone-related diseases, naringin is its main active component. This study elucidates how various concentrations of naringin solution affect the activities of bone cells, based on colorimetric, alkaline phosphatase activity, nodule formation, and tartrate-resistant acid phosphatase activity assays to determine...

Journal: :Diversity 2023

A new species of Dunkleosteus, D. tuderensis sp. nov., is named based on an infragnathal from the Famennian Tver Region, Russia. CT scanning holotype revealed two high-density bony constituents comparable in position and interrelations to components described for coccosteomorph arthrodires, supported by presence at least clusters large vascular canals marking separate arterial supplies. Coccost...

In this study granulocyte-macrophage colony stimulating factor (CSF) was prepared from rabbit and guinea pig lung tissues. The biological activity of these CSFs was measured on semisolid agar culture and compared with those of mouse and rat. Weight of animals, incubation time and cross-reactivity of CSFs with different bone marrow sources were also investigated. The results showed that both...

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