hPD-MSCs	Human placenta-derived mesenchymal stem cells
IGF-I	Insulin-like growth factor-I
CE-TOF/MS	Capillary electrophoresis-time-of-flight mass spectrometry
MSCs	Mesenchymal stem cells
Ovx	Ovariectomized
PCA	Principal component analysis
3-HBA	3-Hydroxybutyric acid
GCA	Glycocholic acid
PLP	Pyridoxal 5′-phosphate
THP1	Tryptophan hydroxylase 1
DDC	Dopa decarboxylase
CDK2	Cyclin-dependent kinase 2
HTR2A	5-Hydroxytryptamine receptor 2a
HGF	Hepatocyte growth factor
VEGFA	Vascular endothelial growth factor a
PGC1α	Peroxisome proliferator-activated receptor-γ coactivator 1α
mtTFA	Mitochondrial transcription factor A
SIRT1	Sirtuin 1
NRF1	Nuclear respiration factor 1
GCDCA	Glycochenodeoxycholic acid
ELISA	Enzyme-linked immunosorbent assay
5-HT	5-Hydroxytryptamine