title: [Big Y chromosome not significantly influences outcomes of in vitro fertilization and embryo transfer].
abstract: OBJECTIVE
  To evaluate the influence of big Y chromosome on the outcomes of in vitro fertilization and embryo transfer.
  
  
  METHODS
  Data of 127 cycles of IVF/ICSI-ET, performed in our Reproductive Medicine Center from March 2001 to June 2003 were analyzed. The patients were divided into two groups according to the length of chromosome: Group A, 56 cycles with big Y chromosome
  
  
  RESULTS
  No significant difference was observed in the quality of embryos and in the and Group B, 71 cycles with normal karyotype. rates of fertilization, cleavage, clinical pregnancy, implantation, miscarriage, ectopic pregnancy, dead infant delivery, malformation,
  
  
  CONCLUSIONS
  Big Y chromosome has no significant influence on the baby boy delivery and baby girl delivery between the two groups. development of embryos and the outcome of pregnancy.
authors.affiliation: ART Center, Shenzhen Zhongshan Urology Hospital, Shenzhen, Guangdong 518000, China.
authors.forename: Xiao-dong
authors.initials: XD
authors.lastname: Hu
authors.forename: Yong
authors.initials: Y
authors.lastname: Zeng
authors.forename: Mei-lan
authors.initials: ML
authors.lastname: Mo
authors.forename: Qi
authors.initials: Q
authors.lastname: Lin
authors.forename: Jing
authors.initials: J
authors.lastname: Cai
authors.forename: Chu-ping
authors.initials: CP
authors.lastname: Guo
authors.forename: Jiang-lin
authors.initials: JL
authors.lastname: Deng
mesh_terms: D041322:Chromosomes, Human, Y; D010064:Embryo Implantation; D005260:Female; D006801:Humans; D007248:Infertility, Male / Q000235:genetics / Q000628:therapy*; D008297:Male; D011247:Pregnancy; D018873:Pregnancy Rate; D011446:Prospective Studies; D020554:Sperm Injections, Intracytoplasmic