PMID- 21782513 OWN - NLM STAT- MEDLINE DCOM- 20120112 LR - 20110905 IS - 1472-6491 (Electronic) IS - 1472-6483 (Linking) VI - 23 IP - 3 DP - 2011 Sep TI - Seven years of experience of preimplantation HLA typing: a clinical overview of 327 cycles. PG - 363-71 LID - 10.1016/j.rbmo.2011.05.016 [doi] AB - Preimplantation human leukocyte antigen (HLA) typing allows the birth of healthy children who are potential donors of stem cells for their affected siblings. This technique can be used for acquired diseases such as leukaemia or can be used for single-gene disorders such as thalassaemia. This retrospective study presents clinical data obtained from 171 couples who had undergone 327 preimplantation HLA typing cycles: 262 cycles for HLA typing in combination with mutation analysis and 65 cycles for the sole purpose of HLA typing. Of the diagnosed embryos 17.6% were found to be HLA matched. Embryo transfer was performed in 212 cycles, 34.9% clinical pregnancy rate per transfer was achieved and 59 healthy and HLA-compatible children were born. Twenty-one sick children have been cured through haemopoietic stem cell transplantation. The effect of maternal age and ovarian reserve on reproductive outcome was assessed retrospectively. The data demonstrated that, once a mutation-free and HLA-compatible embryo was found, clinical pregnancy rate did not differ statistically significantly despite the presence of some cycle-related limitations such as advanced maternal age and/or diminished ovarian reserve. Preimplantation HLA typing is an effective therapeutic tool for curing an affected sibling even for poor-prognosis patients. Preimplantation human leukocyte antigent (HLA) typing allows the birth of healthy children who are potential donors of stem cells for their affected siblings. This technique can be used for acquired diseases such as leukaemia or can be used for single-gene disorders such as thalassaemia. This study presents clinical data obtained from 171 couples who underwent 327 preimplantation HLA-typing cycles. Of these, 262 cycles were performed for HLA typing in combination with mutation analysis and 65 cycles were performed for the sole purpose of HLA typing. A total of 17.6% of the diagnosed embryos were found to be HLA matched. Embryo transfer was performed in 212 cycles. The clinical pregnancy rate per transfer was 34.9% and 59 healthy and HLA compatible children were born. Twenty-one sick children have been cured through haemopoietic stem cell transplantation. The effect of maternal age and ovarian reserve on reproductive outcome was assessed retrospectively. The data demonstrated that, once a mutation-free and HLA-compatible embryo was found, clinical pregnancy rates did not differ statistically significantly by the presence of some cycle-related limitations such as advanced maternal age and/or diminished ovarian reserve. Preimplantation HLA typing is an effective therapeutic tool for curing an affected sibling even for poor-prognosis patients. CI - Copyright (c) 2011 Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved. FAU - Kahraman, Semra AU - Kahraman S AD - In Vitro Fertilisation Unit, Istanbul Memorial Hospital, Piyalepasa Bulvari, Sisli, Istanbul, Turkey. FAU - Beyazyurek, Cagri AU - Beyazyurek C FAU - Ekmekci, Cumhur Gokhan AU - Ekmekci CG LA - eng PT - Journal Article DEP - 20110615 PL - Netherlands TA - Reprod Biomed Online JT - Reproductive biomedicine online JID - 101122473 SB - IM CIN - Reprod Biomed Online. 2011 Sep;23(3):271-3. PMID: 21802364 MH - Blastocyst/*immunology MH - Embryo Transfer MH - Female MH - Fertilization in Vitro MH - *Histocompatibility Testing MH - Humans MH - Pregnancy MH - Pregnancy Rate MH - Preimplantation Diagnosis MH - Retrospective Studies MH - Siblings EDAT- 2011/07/26 06:00 MHDA- 2012/01/13 06:00 CRDT- 2011/07/26 06:00 PHST- 2010/11/08 00:00 [received] PHST- 2011/04/29 00:00 [revised] PHST- 2011/05/11 00:00 [accepted] PHST- 2011/07/26 06:00 [entrez] PHST- 2011/07/26 06:00 [pubmed] PHST- 2012/01/13 06:00 [medline] AID - S1472-6483(11)00324-5 [pii] AID - 10.1016/j.rbmo.2011.05.016 [doi] PST - ppublish SO - Reprod Biomed Online. 2011 Sep;23(3):363-71. doi: 10.1016/j.rbmo.2011.05.016. Epub 2011 Jun 15.