Human premature aging disorders and dysfunction of DNA repair / Byungchan Ahn and Vilhelm A. Bohr -- DNA repair aspects for RecQ helicase disorders / Takehisa Matsumoto -- Trichothiodystrophy: a disorder highlighting the crosstalk between DNA repair and transcription / Miria Stefanini -- Roles of the BRCA1 and BRCA2 breast cancer susceptibility proteins in DNA repair / Katrin Gudmundsdottir, Emily Witt and Alan Ashworth -- Radiosensitivity of cells derived from Down syndrome patients: is defective DNA repair involved? / Adayapalam T. Natarajan -- The Fanconi anemia/BRCA pathway: FANCD2 at the crossroad between repair and checkpoint responses to DNA damage / Massimo Bogliolo and Jordi Surrallés -- Is ataxia telangiectasia a result of impaired coordination between DNA repair and cell cycle checkpoint regulators? / Adayabalam S. Balajee and Charles R. Geard -- Mechanisms of DNA damage and repair in Alzheimer disease / V. Prakash Reddy ... [et al.] -- Orchestration of telomeres and DNA repair factors in mammalian cells: implications for cancer and ageing / M. Prakash Hande -- Defective solar protection in xeroderma pigmentosum and Cockayne syndrome patients / Colette ApRhys and Daniel Judge.