Dose dependent anabolic and anti-catabolic response after local zoledronate treatment of cancellous bone grafts A bone chamber study in rats

Bone ◽  
2009 ◽  
Vol 44 ◽  
pp. S140
Author(s):  
M. Tägil ◽  
O. Belfrage
1996 ◽  
Vol 25 (1) ◽  
pp. 18-28 ◽  
Author(s):  
SHARON C. KERWIN ◽  
DANIEL D. LEWIS ◽  
A. DERRELL ELKINS ◽  
JULIAN OLIVER ◽  
ROBERT PECHMAN ◽  
...  

1989 ◽  
Vol &NA; (243) ◽  
pp. 254???265
Author(s):  
E. E. JOHNSON ◽  
M. R. URIST ◽  
T. P. SCHMALZRIED ◽  
A. CHOTIVICHIT ◽  
H. K. HUANG ◽  
...  
Keyword(s):  

1987 ◽  
Vol 19 (2) ◽  
pp. 111-119 ◽  
Author(s):  
S. E. KOLD ◽  
J. HICKMAN ◽  
F. MELSEN
Keyword(s):  

1998 ◽  
Vol 156 (2) ◽  
pp. 331-339 ◽  
Author(s):  
CK Lea ◽  
V Moxham ◽  
MJ Reed ◽  
AM Flanagan

We have tested the hypothesis that androstenedione (administered as 21-day, slow-release pellets) is converted to active sex steroids and reduces bone turnover in the ovariectomised rat model. We found that ovariectomy resulted in a minor but significant reduction in plasma concentrations of androstenedione and testosterone and a more significant reduction in oestrone (E1) and oestradiol (E2). This was associated with the expected substantial loss of metaphyseal cancellous bone volume. Androstenedione (1.5-100 mg) pellets increased the plasma concentrations of androstenedione and testosterone above those in the ovariectomised (ovx) rats in a dose-responsive manner, whereas E2 plasma concentrations were increased to a minor but significant degree above those in the ovx animals. Androstenedione reduced loss of cancellous bone volume in a dose-dependent fashion by reducing bone turnover. The 1.5, 5 and 100 mg androstenedione-induced effect on bone turnover was not abrogated by simultaneous treatment with Arimidex, an aromatase inhibitor. This implies that the skeletal-protective effect of androstenedione was not oestrogen-mediated.


Author(s):  
Rashmi Rashmi ◽  
Rekha Pathak ◽  
P. Tamilmahan ◽  
Amarpal Amarpal ◽  
H. P. Aithal ◽  
...  

The present work was assessed the restoration of segmental bone gap defect in rabbits by application of composite bone grafts. Composite bone grafts were prepared by seeding of rabbit foetal osteoblast on the bovine acellular cancellous bone matrix and evaluated in the segmental gap defect of 20 mm in rabbits. Thirty six adult New Zealand White rabbits of either sex were allotted to three groups of 12 each. Autograft (group A), Acellular cancellous bone matrix (group B) and composite graft seeded with fetal osteoblasts (group C) were implanted in the defects. Radiography, gross observations and histopathology at different intervals were done to evaluate healing. It was concluded that the seeded foetal osteoblasts in the composite grafts augment regeneration of the new bone leading to better integration of graft in host in comparison to bovine acellular cancellous bone matrix graft.


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