ey0021.14-2 | Basic Biology and Molecular Mechanisms | ESPEYB21
S Young
, C Schiffer
, A Wagner
, J Patz
, A Potapenko
, L Herrmann
, V Nordhoff
, T Pock
, C Krallmann
, B Stallmeyer
, A Ropke
, M Kierzek
, C Biagioni
, T Wang
, L Haalck
, D Deuster
, JN Hansen
, D Wachten
, B Risse
, HM Behre
, S Schlatt
, S Kliesch
, F Tuttelmann
, C Brenker
, T. Strunker
Short summary: This study examined ex vivo the function of the sperm-specific CatSper-channel in almost 2300 men undergoing investigation for infertility. In 9 infertile men with normal semen analysis but pathologic sperm motility, biallelic variants in genes forming the CatSper-channel were found, either in CATSPER2 or CATSPERE. These men and their partners failed to conceive naturally and medically assisted reproduction (MAR) was successful only via intracytoplasmic...