Here are the answers to the questions:

1. What tool was used for pathway enrichment analysis?
The tool used for pathway enrichment analysis is KOBAS software.

2. Was a tool version number provided?
No, a tool version number was not provided.

3. What gene set library was queried (eg: GO, KEGG, Reactome or other)?
The gene set libraries queried were KEGG and Gene Ontology (GO).

4. Was a background gene list defined for pathway enrichment analysis?
Not described.

5. What statistical test was used for enrichment analysis?
Not described, but it is mentioned that pathways with a p-value less than 0.05 were defined as significantly enriched pathways.

6. Was false discovery rate correction used to control the number of false positives in the pathway enrichment analysis?
Not described, although false discovery rate (FDR) correction was mentioned as being used in the differential expression analysis (using Benjamini and Hochberg’s approach), it is not clear if this was also applied to the pathway enrichment analysis.