PMID- 24936726 OWN - NLM STAT- MEDLINE DCOM- 20150518 LR - 20190918 IS - 1677-9487 (Electronic) IS - 0004-2730 (Linking) VI - 58 IP - 4 DP - 2014 Jun TI - [The use of FISH on buccal smear to investigate mosaicism with a 45,X cell line: study on healthy men and patients with disorders of sex development]. PG - 328-34 LID - S0004-27302014000400328 [pii] AB - OBJECTIVE: To verify whether fluorescence in situ hybridization (FISH) of cells from the buccal epithelium could be employed to detect cryptomosaicism with a 45,X lineage in 46,XY patients. SUBJECTS AND METHODS: Samples of nineteen 46,XY healthy young men and five patients with disorders of sex development (DSD), four 45,X/46,XY and one 46,XY were used. FISH analysis with X and Y specific probes on interphase nuclei from blood lymphocytes and buccal epithelium were analyzed to investigate the proportion of nuclei containing only the signal of the X chromosome. RESULTS: The frequency of nuclei containing only the X signal in the two tissues of healthy men did not differ (p = 0.69). In all patients with DSD this frequency was significantly higher, and there was no difference between the two tissues (p = 0.38), either. CONCLUSIONS: Investigation of mosaicism with a 45,X cell line in patients with 46,XY DSD or sterility can be done by FISH directly using cells from the buccal epithelium. FAU - Paulo, Juliana de AU - Paulo Jd AD - Faculdade de Ciencias Medicas, Universidade Estadual de Campinas, Campinas, SP, Brasil. FAU - Andrade, Juliana Gabriel Ribeiro de AU - Andrade JG AD - FCM, Unicamp, Campinas, SP, Brasil. FAU - Santos, Ana Paula dos AU - Santos AP AD - Faculdade de Ciencias Medicas, Universidade Estadual de Campinas, Campinas, SP, Brasil. FAU - Gil-da-Silva-Lopes, Vera Lucia AU - Gil-da-Silva-Lopes VL AD - Departamento de Genetica Medica, FCM, Unicamp, Campinas, SP, Brasil. FAU - Guerra-Junior, Gil AU - Guerra-Junior G AD - Departamento de Pediatria, FCM, Unicamp, Campinas, SP, Brasil. FAU - Maciel-Guerra, Andrea Trevas AU - Maciel-Guerra AT AD - Departamento de Genetica Medica, FCM, Unicamp, Campinas, SP, Brasil. LA - por PT - English Abstract PT - Journal Article PT - Research Support, Non-U.S. Gov't TT - Uso da FISH em mucosa oral para investigacao de mosaicismo com linhagem 45,X: estudo com homens saudaveis e pacientes com disturbios da diferenciacao do sexo. PL - Brazil TA - Arq Bras Endocrinol Metabol JT - Arquivos brasileiros de endocrinologia e metabologia JID - 0403437 SB - IM MH - Adolescent MH - Adult MH - Cell Nucleus MH - Child MH - Child, Preschool MH - Disorders of Sex Development/blood/*genetics/*pathology MH - Female MH - Gonadal Dysgenesis, 46,XY/blood/genetics MH - Gonadal Dysgenesis, Mixed/blood/genetics MH - Humans MH - *In Situ Hybridization, Fluorescence MH - Infertility, Male/genetics MH - Interphase MH - Lymphocytes MH - Male MH - *Mosaicism MH - *Mouth Mucosa MH - Turner Syndrome/genetics MH - Young Adult EDAT- 2014/06/18 06:00 MHDA- 2015/05/20 06:00 CRDT- 2014/06/18 06:00 PHST- 2013/06/24 00:00 [received] PHST- 2013/11/25 00:00 [accepted] PHST- 2014/06/18 06:00 [entrez] PHST- 2014/06/18 06:00 [pubmed] PHST- 2015/05/20 06:00 [medline] AID - S0004-27302014000400328 [pii] AID - 10.1590/0004-2730000002853 [doi] PST - ppublish SO - Arq Bras Endocrinol Metabol. 2014 Jun;58(4):328-34. doi: 10.1590/0004-2730000002853.