Table I.

Cyclobutane pyrimidine dimers (CPD), 8-hydroxy-2′-deoxyguanosine (8OHdG) and protein carbonylation (PC) in human HaCaT cells under different experimental conditions.

	Negative control	Positive control	Trehalose-loaded liposomes	L-carnosine	L-(+)-ergothioneine	L-ascorbic acid	DL-α-tocopherol
CPD	1	27.5±0.6	6.1±0.3	12.1±1.3	8.4±1.2	15.3±1.4	12.6±0.5
8OHdG	1	8.1±0.6	3.6±0.1	5.2±0.3	4.7±0.2	6.1±0.2	6.0±0.4
PC	1	7.2±0.2	2.1±0.1	4.7±0.1	4.3±0.2	5.5±0.3	4.9±0.2

Data are means ± standard deviation of at least three independent experiments. The negative control cells were set at 1.