“…No change reported Shiomi et al (2004Shiomi et al ( , 2005 Xpg E791A/E791A TC-NER GG-NER >2 years ND UV-hypersensitive skin and eyes Tian et al (2004a) TTD Xpd TTD Partial TC-NER partial GG-NER 2 years 3 weeks TTD-like brittle hair, grey hair and hair loss, anemia, mild osteoporosis, signs of accelerated aging in multiple tissues, reduced weight de Boer et al (1998ade Boer et al ( ,b, 2002 XFE Xpf m/m ND 3 weeks ND UV-hypersensitive skin and eyes, severe skin cancer predisposition, mild neurodegenerative changes, mild age-related weight loss, reduced fat tissue Tian et al (2004b) Ercc À/À TC-NER GG-NER 3 weeks ND Severe growth deficiency (>50% reduced weight at 3 weeks), abnormalities in multiple tissues, absence of subcutaneous fat, progressive neurodegenerative changes and motor symptoms McWhir et al (1993) and Weeda et al (1997) Xpd XPCS /Xpa À/À TC-NER GG-NER 3 weeks -Severe post-natal growth deficiency (>50%), no subcutaneous fat, abnormalities in multiple organs, neurodegenerative changes and motor symptoms Andressoo et al (2006b) with oxidative DNA damage is an important factor contributing to CS symptoms (Scharer, 2008;Soltys et al, 2013).…”