期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 23, 期 19, 页码 -出版社
MDPI
DOI: 10.3390/ijms231911917
关键词
ASD; mitochondrial function; NGF; Seahorse XFp
资金
- National Science Fund of Bulgaria [KP 06-H33/6-2019]
- NUCBAR-BBMRI.BG [D01-285/17.12.2019]
This study is the first to link elevated NGF with mitochondrial respiration and altered energy homeostasis in ASD. High levels of NGF may serve as a screening tool to improve early diagnosis and clinical follow-up in ASD.
Background: NGF is a molecule with a pleiotropic role, affecting neuro-immune functions, energy homeostasis, and synaptic plasticity. The mechanisms of NGF-induced neuronal differentiation are well established, but its effect on mitochondria in autism spectrum disorder (ASD) is still unclear. We hypothesize that NGF-induced neuronal development requires large amounts of energy, and mitochondria in ASD are overloaded to meet the new functional requirements. Method: The study includes primary diagnosed ASD children. Peripheral blood mononuclear cells (PBMCs) and plasma were obtained from both patients and typically developing children (TDC). PBMCs were analyzed with Seahorse XFp, and plasma NGF protein levels were measured. Results: We detected nearly 50% higher NGF levels and approximately 40% elevation in spare respiratory capacity in ASD compared to TDC. These findings are consistent with the observed difference in maximal respiration, which was also significantly higher in the patient group. Both mitochondrial respiration and NGF plasma levels exhibit a strong potential to discriminate children with ASD from TDC. Conclusions: This study is the first to link elevated NGF with mitochondrial respiration and altered energy homeostasis in ASD. High NGF correlates with basic bioenergetic signatures that may be used as a screening tool to improve early diagnosis and clinical follow-up in ASD.
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