Ghrelin, Growth Hormone and Growth Factors at High Altitude
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|ClinicalTrials.gov Identifier: NCT00966134|
Recruitment Status : Completed
First Posted : August 26, 2009
Last Update Posted : February 23, 2010
Regulation of ghrelin, growth hormone and growth factors at high altitude and their change during ascent to high altitude has not been studied in depth yet. The study includes 33 volunteers (12f) investigated at sea level, 4 days after ascent to 3440m and 14 days after ascent to 5400-5900m.
The investigators hypothesized that during ascent growth hormone levels would increase to compensate for the higher energy needs at high altitude.
|Condition or disease||Intervention/treatment|
|Healthy Growth Hormone||Other: exposure to high altitude|
|Study Type :||Observational|
|Study Start Date :||April 2002|
|Actual Study Completion Date :||September 2005|
|probands||Other: exposure to high altitude|
- Ghrelin, growth hormone, insulin-like growth factor I (IGF-I), IGF binding protein 1 (IGFBP1), IGF binding protein 2 (IGFBP2), IGF binding protein 3 (IGFBP3), acid-labile subunit (ALS), insulin, prolactin [ Time Frame: 14 days ]