• 제목/요약/키워드: Hermaphroditism

검색결과 20건 처리시간 0.038초

개에 발생한 반음양증 (Four cases of hermaphroditism in dogs)

  • 권영삼;박천호;장광호;토시후미 오야마다;히로야스 요시카와
    • 대한수의학회지
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    • 제45권3호
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    • pp.411-416
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    • 2005
  • Hermaphroditism was discovered in four dogs at surgery. For the classification of the type of hermaphroditism in each case, gross morphological and histopathological studies were performed. Based on the histopathological studies, two dogs were diagnosed as unilateral true hermaphroditism because they had mixed gonad containing testis and ovary in unilateral gonad. Whereas two dogs were diagnosed as male pseudohermaphroditism because they had only testis and uterus that had endometrial atrophy. After resection, further follow-up of several months revealed no evidence of clinical abnormalities.

진도개에서 발생한 Os clitoris와 Ovotestes를 특징으로 하는 양성자 사례 연구 (An Intersex with Os Clitoris and Ovotestes in Korean Native Jindo Dog)

  • 조성진;이현아;박상호;김옥진
    • 한국임상수의학회지
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    • 제27권1호
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    • pp.83-87
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    • 2010
  • 양성자(Hermaphroditism)는 사람과 동물에서 매우 드물게 발생단계의 이상으로 발생한다. 한국에서 개의 양성자 발생 보고는 6 사례가 있으며 그들 모두가 American Cocker Spaniel 품종이었다. 본 연구자들은 진돗개에서 발생한 양성자 사례를 발견하고 그 특징 분석과 병리조직학적 연구 및 분자생물학적 성별감별 연구를 수행하였다. 본 사례연구를 통하여 os clitoris와 ovotestes를 가지며 암컷 성을 가진 양성자 진돗개를 최초로 확인하고 보고하는 바이다.

참남여중간몸증으로 오인된 혼합생식샘발달장애 (Mixed Gonadal Dysgenesis Mimicking True Hermaphroditism)

  • 최재덕;전종호;박재신
    • Advances in pediatric surgery
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    • 제13권2호
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    • pp.222-227
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    • 2007
  • A differential diagnosis between the true hermaphroditism (TH) and mixed gonadal dysgenesis (MGD) has important clinical implications for gender assignment and the decision for early gonadectomy; however, variable clinical and histological features frequently lead to the confusion of TH with MGD. A 17-month-old boy was presented with proximal hypospadias with chordee and right non-palpable testis in his scrotum. He also had right auricular anomaly including a separated tragus with skin tag. Left testis was well palpable in his left scrotum. Diagnostic right inguinal exploration showed Mullerian structures such as a gonad like an ovary and a fallopian tube with a uterus, which were removed. Repair of hypospadias and right auricular anomaly was also done. Following ultrasonography (USG) showed a normal looking testis in left scrotum. His chromosome was 45, XO/46, XY. We report a difficult case of mixed gonadal dysgenesis mimicking true hermaphroditism which combines ipsilateral congenital auricular anomaly.

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이매패류의 성과 성전환 (Sex and Sex Reversal of Bivalves)

  • 이정식
    • 한국패류학회지
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    • 제31권4호
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    • pp.315-322
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    • 2015
  • 이매패류의 성은 자웅이체와 자웅동체로 구분되며, 자웅이체는 동시자웅동체와 비동시자웅동체로 나누어진다. 비동시자웅동체는 계절에 따른 성의 전환을 의미한다. 일반적으로 자웅이체 이매패류의 경우 형태학적 성으로 표현되는 암, 수는 개체의 생활사 가운데 일정한 한 시기에 국한된 것이다. 개체의 성을 정확히 확인하기 위해서는 성을 표지한 후, 생활사 동안 성의 변화를 연속적으로 추적해야 한다. 이매패류에서 성전환과 비동시자웅동체는 굴과, 가리비과, 백합과 및 돌조개과 등의 이매패류에서 보고되고 있다. 이들 연구의 대부분은 동일 개체군에서 연령에 따른 성비의 변화를 증거로 이러한 결론에 도달하게 되었다. 비동시자웅동체 이매패류에서 성의 변화는 보통 방란, 방정 후 생식소의 비활성기에 일어난다. 이매패류에서 성결정과 성의 변화에는 유전적 요인과 환경적 요인 두 가지가 관여하지만, 이에 관한 이들의 영향에 관해서는 세부적인 연구가 필요하다.

한국산 점줄종개 Cobitis lutheri의 성비와 자웅동체성 (Sex ratios and Hermaphroditism of Cobitis lutheri (Pisces, Cobitidae) from Korea)

  • 김익수;박종영
    • 한국어류학회지
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    • 제4권2호
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    • pp.72-76
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    • 1992
  • 저서성 담수어류인 기름종개과의 점줄종개 Cobitis lutheri를 1987년 10월부터 1988년 9월까지 전라남도 강진군 강진읍 남포리(탐진강)에서 1년간 채집하여 암, 수의 성비와 생식소를 조사하였다. C. lutheri는 크기가 작은 개체에서는 수컷의 빈도가 아주 높은 반면 큰 개체에서는 암컷이 높은 빈도로 나타나는 체장별 불균형 성비를 보였다. 한편, 생식소의 육안적 현미경적 관찰 결과, 중간 크기의 수컷 정소에서는 정소조직의 퇴화와 난소조직의 발달이 동시에 존재하는 자웅동체성(Hermaphroditism)의 개체가 발견되어 이에 관하여 논의하였다.

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Sex of Mussel Mytilus coruscus (Bivalvia: Mytilidae) : Sequential Hermaphroditism

  • Kim, Hyeon Jin;Shin, So Ryung;Oh, Han Young;Kim, Jae Won;Lee, Jung Sick
    • 한국발생생물학회지:발생과생식
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    • 제25권1호
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    • pp.55-57
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    • 2021
  • Samples were collected from the subtidal region of Jumunjin on the eastern coast of Korea in July 2020. A total of 338 mussels of shell height (SH) 20.8-149.8 mm were used for sex ratio analysis. The sex ratio (F:M) in the same population of mussel Mytilus coruscus was approximately 1:0.7. The sex ratio according to the class of SH was different. The sex reversal pattern of M. coruscus appears to go from male → female → male → female, and as such is determined to be sequential hermaphrodites.

간성(間性)에 관한 임상적(臨床的) 고찰(考察) (Clinical Investigation of Intersex)

  • 김광명;김경도;이희영
    • Clinical and Experimental Reproductive Medicine
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    • 제9권1_2호
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    • pp.79-93
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    • 1982
  • We collected a total of 109 patients with intersex during the past 16 years (1966-1982). They were summerized as follows: Klinefelter's syndrome, the most common disease, was found in 76 cases, Turner's syndrome in 3 cases, true hermaphroditism in 5 cases, male pseudohermaphroditism in 5 cases, female pseudohermaphroditism in 13 cases and others in 7 cases in which 2 cases of XX male syndrome, 1 case of agonadism, 1 case of hernia uteri inguinale and 3 cases of unclassified intersex were included. 2 mosaic Klinefelter's syndrome showed 46/47 XX/XXY and 1 mosaic Turner's syndrome showed 45/46 XO/XX. The 5 patients with true hermaphroditism included 2 cases that had an ovary on one side and a testis on the other, 1 case, seperate ovary and testis on each side, 1 case, an ovary on one side and a seperate testis and ovary on the other and 1 case, an ovary on one side and an ovotestis on the other. Sex chromosome study on the true hermaphroditism revealed 46 XX in 2 patients and 46/46 XX/XY mosaicism in 3 patients. In male pseudohermaphroditism, all patients had a short and blind vagina. Of which, familial tendency was found in 1 case. Her sister had operation for sex reversal for female. In female psedohermaphroditism, all the patients were adrenogenital syndrome. Operations for clitoridectomy and vaginoplasty were performed on 10 patients. Hydrocortisone was given to 6 patients. Menstruation started to occur 6 months and 4 months after the medical therapy respectively in 2 cases.

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Sex Ratio and Sex Reversal in Two-year-old Class of Oyster, Crassostrea gigas (Bivalvia: Ostreidae)

  • Park, Jung Jun;Kim, Hyejin;Kang, Seung Wan;An, Cheul Min;Lee, Sung-Ho;Gye, Myung Chan;Lee, Jung Sick
    • 한국발생생물학회지:발생과생식
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    • 제16권4호
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    • pp.385-388
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    • 2012
  • The sex ratio (F:M) in the same population of oyster, Crassostrea gigas at the commencement of the study (2007) was 1:1.0, but changed to 1:2.8 by the end of the study (2008). The sex reversal rate in two-year-old oysters was 40.2%. Specifically, female to male sex reversal rate was 66.1%, which is higher than the male to female sex reversal rate of 21.1%. The sex reversal pattern of C. gigas appears to go from male ${\Rightarrow}$ female ${\Rightarrow}$ male, and as such is determined to be rhythmical hermaphroditism.