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Association between triglyceride glucose index and peak growth hormone in children with short stature
Qianqian Zhao1,2,3, Yuntian Chu4, Hui Pan5,3
1Department of Endocrinology, Qingdao University, Qingdao, 266071, Shandong, People's Republic of China.
Insights
The triglyceride (TyG) index may indicate growth hormone (GH) deficiency in children with short stature. A higher TyG index, particularly above 7.8, is linked to lower peak GH levels, suggesting a potential diagnostic marker.
Area of Science:
- Pediatric Endocrinology
- Metabolic Syndrome Research
Background:
- Growth hormone (GH) secretion is influenced by various factors and GH provocation tests show poor reproducibility.
- Identifying reliable indicators for GH deficiency (GHD) in children with short stature is crucial for accurate diagnosis and timely intervention.
Purpose of the Study:
- To investigate the association between the triglyceride (TyG) index and peak GH levels in children presenting with short stature.
- To determine if the TyG index can serve as a predictive marker for GH deficiency in pediatric populations.
Main Methods:
- A cohort of 1095 children with short stature were analyzed, categorized into GH deficiency (GHD) and non-GHD groups based on GH provocation tests.
- Statistical analyses were performed to assess the relationship between the TyG index and peak GH levels, including nonlinear association testing.
Main Results:
- Children in the GHD group exhibited significantly higher TyG index values compared to the non-GHD group (P < 0.001).
- A nonlinear relationship was identified between the TyG index and peak GH, with a critical threshold at 7.8.
- A significant negative association was found between the TyG index and peak GH when the index exceeded 7.8 (β = -2.61, P < 0.001).
Conclusions:
- The triglyceride (TyG) index demonstrates a nonlinear relationship with peak GH levels in children with short stature.
- An elevated TyG index, especially above 7.8, is associated with reduced peak GH, suggesting its potential utility in evaluating pediatric short stature and possible GH deficiency.
Abstract:
Growth hormone (GH) secretion is related to many factors, such as weight and puberty, and the reproducibility of GH provocation tests is very poor. This study aimed to evaluate whether the triglyceride (TyG) index was associated with peak GH in children with short stature. This study included 1095 children with short stature divided into two groups based on peak GH level in GH provocation tests [GH deficiency (GHD) group = 733 children; non-GHD group = 362 children]. We found that the TyG index was significantly higher in the GHD group than in the non-GHD group (P < 0.001). A nonlinear relationship was detected between the TyG index and peak GH, whose point was 7.8. A significant negative association between the TyG index and peak GH was observed when the TyG index was greater than 7.8 (β - 2.61, 95% CI - 3.98, - 1.24; P < 0.001), whereas, the relationship between the TyG index and peak GH was not significant when the TyG index was lower than 7.8 (β 0.25, 95% CI - 1.68, 2.17; P = 0.799). There is a nonlinear relationship between the TyG index and peak GH, and a higher TyG index is associated with decreased peak GH in children with short stature.
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