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45XO/46XY Mosaicism°ú SRYÀ¯ÀüÀÚ ¾ç¼ºÀÎ 45XO ȯÀÚÀÇ ÀÓ»óÀû Ư¼º °íÂû Clinical Characteristics in the 45XO/46XY Mosaicism and 45XO with SRY Gene Positive Patients

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È«ÁÖÀÇ/Joo Eui Hong À̹ÎÁ¾/ÇÑ»ó¿ø/ÀÌÁø¼º/Ãֽ°­/ÀÌÅÃ/Min Chong Lee/Sang Won Han/Jin Sung Lee/Seung Kang Choi/Tack Lee

Abstract

¼­·Ð
¼ºÀÇ °áÁ¤Àº ³­ÀÚ¿Í Á¤ÀÚ°¡ ¼öÁ¤ ÈÄ Á÷¼±ÀûÀÌ°í ¿¬¼ÓÀûÀÎ ºÐÈ­¿¡ ÀÇÇØ ÀÌ·ç¾îÁø´Ù. ±×·¯
¹Ç·Î ¼ººÐÈ­ Àå¾Ö´Â Àå¾Ö°¡ ¹ß»ýÇÏ´Â ½Ã±â¿¡ µû¶ó ±× ÀÓ»óÀû ¾ç»óÀÌ ´Ù¾çÇÏ´Ù. ÀÌ ¼ººÐÈ­
Àå¾Ö´Â Àå¾Ö°¡ ¹ß»ýÇÏ´Â ½Ã±â¿¡ µû¶ó ¼º¿°»öü, ¼º¼± ¹× Ç¥ÇöÇüÀÇ ÀÌ»óÀ¸·Î ºÐ·ùµÈ´Ù. ÀÌÁß,
¼º¿°»öü À̻󿡼­ ±âÀÎÇÑ Àå¾Ö´Â Á¤»ó ¼ººÐÈ­ ´Ü°è¿¡¼­ Á¤ÀÚ ¹× ³­ÀÚÀÇ °¨¼öºÐ¿­ºÎÅÍ ¼öÁ¤
´Ü°è±îÁöÀÇ º´º¯À¸·Î ±× ÀÓ»óÀû ¾ç»óÀº ´Ù¸¥ ½Ã±âÀÇ Àå¾Ö¿¡ ºñÇÏ¿© ÈξÀ ´õ ½É°¢ÇÏ´Ù.
¼ººÐÈ­ Àå¾Ö Áß ¼º¿°»öü ÀÌ»ó¿¡ ±âÀÎÇÏ´Â °Íµé·Î´Â KlinefelterÁõÈıº, XX³²¼ºÁõÈıº, º¹
ÇÕ¼º¼±ÀÌÇü¼ºÁõ(mixed gonadal dysgenesis), TurnerÁõÈıº, Áø¼º¹ÝÀ½¾ç(true
hermaphroditism)µîÀÌ ÀÖÀ¸¸ç, À̵éÀº °¢°¢ÀÇ Æ¯ÀÌÇÑ ÀÓ»óÀû Ư¼º°ú ¸»ÃÊÇ÷¾× ¹éÇ÷±¸¿¡¼­
¿°»öü °Ë»ç·Î Áø´ÜµÈ´Ù. ÀÌ Áß Æ¯È÷, º¹ÇÕ¼º¼±ÀÌÇü¼ºÁõÀº ¸ðÈ£ÇÑ ¼º±â¿Í ¼º¼±À¸·Î ÀÎÇÏ¿©
Ãâ»ý½Ã ¼ºÀÇ °áÁ¤ÀÌ ¾î·Á¿î °æ¿ì°¡ ¸¹´Ù. ±×·¯³ª ȯ¾Æ ¹× °¡Á·ÀÇ ¼ºº°ÀÇ È¥¶õÀ» ¸·°í »çȸ
Àû ÀûÀÀÀ» À§ÇÏ¿© Á¤È®ÇÑ Áø´Ü ¹× Á¶±â¿¡ ¼ºÀ» °áÁ¤ÇÏ´Â °ÍÀÌ ÇʼöÀûÀ̶ó ÇÏ°Ú´Ù.
º» ¿¬±¸¿¡¼­´Â º»¿ø¿¡¼­ °æÇèÇß´ø ¼º¿°»öü ÀÌ»ó Áß 45XO/46XY mosaicism ȯÀÚ¿Í
SRY(sex determining region Y) À¯ÀüÀÚ¸¦ °®´Â 45XO ȯ¾ÆÀÇ ¿°»öü¿Í ¼º¼± ¹ßÇöÀÇ »ó°ü
°ü°è¿Í ÀÓ»óÀû Ư¼ºÀ» ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù.

Purpose : We investigated the clinical characteristics and relationship between
chromosome and its phenotypic expression in patients with 45XO/46XY mosaicism or
45XO with SRY gene.
Materials and Methods : 11 patients with 45XO/46XY chromosomal abnormality and 4
patients with 45XO with SRY positive reaction admitted from 1990 to 1996 were
evaluated. Patients were grouped according to chromosome and gonadal expression.
Group A consisted of patients with 45XO/46XY chromosome and unilateral streak gonad,
group B patients with 45XO chromosome, SRY positive reaction and unilateral streak
gonad and group C patients with 45XO/46XY chromosome and bilateral streak gonads.
Results : Of the total 15 patients, the number of patients in group A, B, and C were
8, 4, and 3, respectively. SRY gene was positive in all group A and B patients but only
one patient was positive in group C. Of the 8 patients in group A, 5 patients had a
high XY mosaicism ratio compared to XO whereas an equal ratio was observed in the
remaining 3 patients. Of the 4 male penotype patients only 1 patient had a high XY
mosaicism ratio compared to XO while 3 patients displayed an equal ratio. There was
no difference in associated anomaly and the degree of severity of ambiguity according to
the mosaicism ratio in all patients.
Conclusions : There was no definite correlation between the mosaicism ratio and
phenotypic expression. Presence of SRY gene in 45XO patients may suggest
MGD(mixed gonadal dysgenesis) and therefore, the evaluation SRY gene could be useful
in the diagnosis of 45XO patients with ambiguous genitalia.

Å°¿öµå

Mixed gonadal dysgenesis; 45XO/46XY mosaicism; SRY gene;

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