Human Parathyroid Hormone Fragment Stimulates Prostaglandin Synthase in Chick Calvaria
Author Information
Author(s): Chin-Yuh Yang, Ching-Liang Meng, Patrick Y-K. Wong
Primary Institution: Tri-Service General Hospital, National Defense Medical Center
Hypothesis
Does hPTH-(1-34) stimulate the de novo synthesis of prostaglandin synthase in chick calvaria?
Conclusion
hPTH-(1-34) significantly increases the activity of prostaglandin synthase in chick calvaria.
Supporting Evidence
- hPTH-(1-34) at a concentration of 0.6 µg/ml stimulates PG synthase activity in chick calvaria.
- Indomethacin and actinomycin D blocked the stimulatory effect of hPTH-(1-34) on PG synthase.
- PG synthase activity was significantly higher in the presence of hPTH-(1-34) compared to control.
Takeaway
A hormone from the parathyroid gland helps chick bones make more of a substance that is important for inflammation and healing.
Methodology
Chick calvariae were incubated with hPTH-(1-34) and other additives, and the activity of prostaglandin synthase was measured by the conversion of arachidonic acid to PGE2.
Limitations
The study is limited to chick calvaria and may not be generalizable to other species.
Participant Demographics
Chick embryos, specifically 17-day-old embryos.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
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