skeletal muscle biopsies; spinal cord; frontal cortex
iPSC-derived motor neurons
genetically engineered animal model
not specified
RNA-seq; RNase R Treatment; RT-qPCR; divergent primers PCR; Clinical Sample Validation; Bioinformatics Analysis
potential translational application of circRNAs as biomarkers of ALS disease onset and progression
hsa_circ_0000231 is upregulated in ALS skeletal muscle but reduced in ALS spinal cord and frontal cortex, suggesting a tissue-gradient pattern; no mechanism was established.
0.585
Transcriptomic analysis of human ALS skeletal muscle reveals a disease-specific pattern of dysregulated circRNAs.
combined biological and clinical study