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Comparative Analysis of Human Growth Hormone in Serum Using SPRi, Nano-SPRi and ELISA Assays
Published on: January 7, 2016
Short-term gluten challenge in children with coeliac disease does not impair spontaneous growth hormone secretion
Ulf H G Jansson1, Bengt Kristiansson, Kerstin Albertsson-Wikland
1Göteborg Pediatric Growth Research Center, Department of Pediatrics, The Sahlgrenska Academy at Göteborg University, Sweden. ulf.jansson@ltjkpg.se
Insights
Growth in children with celiac disease is not due to impaired growth hormone (GH) secretion. This study found no significant changes in GH secretion during a gluten challenge, suggesting other factors may affect growth.
Area of Science:
- Pediatric Endocrinology
- Gastroenterology
- Growth Disorders
Background:
- Growth retardation in children with celiac disease is often linked to impaired growth hormone (GH) secretion.
- Previous studies observed reduced GH secretion in stimulation tests for celiac disease patients.
Purpose of the Study:
- To investigate spontaneous GH secretion changes during a standardized gluten challenge in children with suspected celiac disease.
- To determine if gluten exposure affects 24-hour GH secretion patterns.
Main Methods:
- Twelve children with suspected celiac disease underwent a 5-6 week gluten challenge.
- Repeated 24-hour GH sampling was performed before and after the challenge.
- GH levels were analyzed using the PULSAR computer program to assess secretion parameters.
Main Results:
- No significant differences were observed in GH peak, baseline GH, GH peak number, or mean GH concentration.
- A slight increase in GH secretion rate (GHt) was noted, but not significantly correlated with IGF-I changes.
- The 24-hour GH secretion profile characteristics did not significantly change post-gluten challenge.
Conclusions:
- The study found no evidence of impaired spontaneous GH secretion in children with celiac disease during a gluten challenge.
- Growth retardation in celiac disease may not be primarily due to altered GH secretion.
- Altered peripheral sensitivity to GH is proposed as a potential alternative cause for growth issues in celiac disease.
Background:
Growth retardation in children with coeliac disease has been attributed to impaired growth hormone (GH) secretion observed in stimulation tests.
Objective:
This study aimed at investigating the possible change in spontaneous GH secretion during a standardised gluten challenge.
Patients:
Twelve children with previous enteropathy suggesting coeliac disease and a normal pre-challenge biopsy on a gluten-free diet were included; eight of them completed all parts of the study, including repeated 24-h GH sampling.
Methods:
At the start and the end of a 5-6 weeks standardised gluten challenge, blood was drawn at a constant rate for 24 h and collected for GH analysis at 20-min intervals. The graph of plotted GH values was analysed by means of a computer program (PULSAR).
Results:
No significant changes were seen in the measures of maximum GH peak, baseline GH values, area under the curve over the baseline (AUCb), the number of GH peaks or mean GH concentration. GH secretion rate (GHt) increased slightly. None of the characteristics of the 24-h profile was significantly correlated to the change of IGF-I.
Conclusion:
No impaired GH secretion was found. Thus, we speculate that decreased growth rate in celiac disease may not be primarily caused by changes in GH secretion. Instead it may be caused by changed peripheral sensitivity to GH.
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