Table 1.

List of potential biomarkers of aging in Caenorhabditis elegans

	Biomarkers of aging	Correlation with lifespan	References
Physiological markers	Locomotion	Positive	Hahm et al. (2015), Hsu et al. (2009), Huang et al. (2004) and Pincus et al. (2011)
	Pharyngeal pumping rate	Positive	Huang et al. (2004)
	Progeny number	Positive	Pickett et al. (2013)
Cellular markers	Nucleolar size	Negative	Tiku et al. (2017)
Molecular markers	sod –3 expression	Positive	Sanchez‐Blanco and Kim (2011)
	hsp –16 .2 expression	Positive	Rea et al. (2005)
	miRNAs	Positive or negative	Pincus et al. (2011)
	Age pigments	Negative	Pincus et al. (2011) and Pincus et al. (2016)
	Mitochondrial activity	Negative	Cheng et al. (2014) and Shen et al. (2014)