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.

Scientific Reports
|January 22, 2021
PubMed

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.

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