Additive Effects of Intra-articular Injection of Growth Hormone and Hyaluronic Acid in Rabbit Model of Collagenase-induced Osteoarthritis
Journal of Korean Medical Science
;
: 776-780, 2010.
Article
in English
| WPRIM
| ID: wpr-157569
ABSTRACT
In a rabbit model of collagenase-induced osteoarthritis, the additive effects of intra-articular recombinant human growth hormone (GH) administration to hyaluronic acid (HA) were evaluated. After intra-articular collagenase injection, mature New Zealand white rabbits (n=30) were divided into 3 groups. Group 1 (control rabbits) received once weekly intra-articular saline injections for 4 weeks. Group 2 rabbits received 6 mg HA injections, and group 3 rabbits were injected with 6 mg HA and 3 mg recombinant human GH. These injections were initiated 4 weeks after collagenase injections. Lameness was observed for 9 weeks after collagenase injections. Macroscopic and histopathological knee joint findings were also evaluated at the end of 9 weeks after collagenase injections. Although all animals had lameness after collagenase injections, the duration and severity of lameness were significantly shorter and less severe in group 3 than group 1 and 2 (P<0.01). Macroscopic scores showed that femoral condyles of group 3 rabbits received significantly less cartilage damage than those of groups 1 and 2 rabbits (P<0.01). Histopathological score was also the lowest in group 3 (P<0.01). These results suggest that co-injection of intra-articular HA and recombinant human GH is more effective than HA injections alone in an osteoarthritis model.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Osteoarthritis
/
Treatment Outcome
/
Collagenases
/
Human Growth Hormone
/
Disease Models, Animal
/
Drug Combinations
/
Drug Synergism
/
Hyaluronic Acid
/
Injections, Intra-Articular
Type of study:
Prognostic study
Limits:
Animals
/
Humans
/
Male
Language:
English
Journal:
Journal of Korean Medical Science
Year:
2010
Type:
Article
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