Abstract
Protein turnover in collagen rich tissue is influenced by exercise, but can only with difficulty be studied in vivo due to use of invasive procedure. The present study was done to investigate the possibility of applying the PET-tracer, cis-[(18)F]fluoro-proline (cis-Fpro), for non-invasive assessment of collagen synthesis in rat musculoskeletal tissues at rest and following short-term (3 days) treadmill running. Musculoskeletal collagen synthesis was studied in rats at rest and 24 h post-exercise. At each session, rats were PET scanned at two time points following injection of cis-FPro: (60 and 240 min p.i). SUV were calculated for Achilles tendon, calf muscle and tibial bone. The PET-derived results were compared to mRNA expression of collagen type I and III. Tibial bone had the highest SUV that increased significantly (p
| Original language | English |
|---|---|
| Journal | P L o S One |
| Volume | 6 |
| Issue number | 2 |
| Pages (from-to) | 827-36 |
| Number of pages | 10 |
| ISSN | 1932-6203 |
| DOIs | |
| Publication status | Published - 2011 |
Keywords
- Animals
- Biological Transport
- Collagen
- Collagen Type I
- Collagen Type III
- Connective Tissue
- Male
- Muscle, Skeletal
- Physical Conditioning, Animal
- Positron-Emission Tomography
- Proline
- RNA, Messenger
- Rats
- Rats, Wistar
- Real-Time Polymerase Chain Reaction
- Reproducibility of Results
- Rest
- Tendons