• 제목/요약/키워드: vestigial tail

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Adams-Oliver Syndrome: Vestigial Tail and Genetics Update

  • Zhu, Victor Z.;Hansen-Kiss, Emily;Hecht, Jacqueline T.;Payne, Phileemon E.
    • Archives of Plastic Surgery
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    • 제49권4호
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    • pp.517-522
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    • 2022
  • Adams-Oliver syndrome is a well-recognized autosomal dominant disorder for which mutations in six genes are etiologic, but account for only one-third of the cases. We report a patient with two genetic disorders; Adams-Oliver and Xp22.33 deletion syndromes, as well as a vestigial pseudotail. The presence of a pseudotail has not previously been reported in either of these genetic conditions. Absence of a molecular etiology underlying Adams-Oliver syndrome confirms that there are additional genetic causes to be identified.

무미와 단미로 특징되는 동경이에 대한 연구 (Study on Dongkyung-i Dog Characterized as Anury and Brachyury)

  • 조성진;박영석;이은수;이현아;김옥진
    • 한국임상수의학회지
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    • 제25권1호
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    • pp.15-18
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    • 2008
  • 최근 댕견으로 불리는 동경이에 대한 과학적 연구는 현재까지 거의 없는 실정이며, 본 연구는 동경이의 형태학적 특징을 조사하기 위하여 수행되었다. 연구 결과 동경이는 활동적이고 체격이 단단하고 사람과 친화적인 것을 알 수 있었다. 형태학적으로 평균 22.6kg의 체중을 보여 중형견으로 분류되었고 피모색은 주로 황갈색으로 짧은 털을 가지고 있었고 외관상 골반이 단단하고 꼬리가 없거나 매우 짧았다. 방사선학적 연구 결과 꼬리의 미추가 형성되지 않았거나 미약한 것을 알 수 있었다. 이러한 연구 결과로부터 한국 고유 품종의 하나인 동경이의 특징은 무미 또는 단미인 것을 알 수 있었다. 향후 혈통에 대한 유전학적 연구의 진행으로 한국 고유의 특성 있는 품종의 개발 가치가 있을 것으로 판단된다.

Morphological and Molecular Characterization of Toxocara apodemi (Nematoda: Ascarididae) from Striped Field Mice, Apodemus agrarius, in Korea

  • Kim, Hyeon Cheol;Hong, Eui Ju;Ryu, Si Yun;Park, Jinho;Cho, Jeong Gon;Yu, Do Hyeon;Chae, Joon Seok;Choi, Kyoung Seong;Park, Bae Keun
    • Parasites, Hosts and Diseases
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    • 제58권4호
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    • pp.403-411
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    • 2020
  • Adult ascarid worms from the field mice, Apodemus agrarius, were observed with a light and scanning electron microscope, and molecularly analized with 18S rRNA gene. In the scanning electron microscope, 3 prominent labia were present in the anterior end of male and female worms, but the interlabia and gubernaculum were absent. Scanning electron micrographs showed cervical alae as vestigial organs that looked like a slightly uplifted superficial sewing stitch. Total 6 pairs of post-cloacal papillae were observed on the tail of the male worms. The tail of female worms was blunt and conical shape with a spine-like structure, mucron. The eggs were sub-globular, coated with the albuminous layer and 73 by 82 ㎛ in average size. The superficial pits of T. apodemi egg (mean 8.6×6.7 ㎛) are obviously bigger than those of Toxocara spp. The partial sequence of 18S rRNA showed the sequence homology of Toxocara canis (99.6%), Toxocara cati (99.4%), Toxascaris leonina (99.4%), and Toxocara vitulorum (99.2%). Conclusively, it was confirmed that ascarid nematodes, Toxocara apodemi, recovered from striped field mice in Korea are taxonomically conspecific relationship with genus Toxocara and genetic divergence from other Toxocara species.

Severe Bilateral Microphthalmia in a Holstein Calf

  • Hur, Tai-Young;Kang, Seog-Jin;Jung, Young-Hun;Do, Yoon-Jung;Choi, Chang-Yong;Ryu, Il-Sun;Cho, Sung-Whan;Song, Kun-Ho;Suh, Guk-Hyun
    • 한국임상수의학회지
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    • 제25권5호
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    • pp.411-414
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    • 2008
  • This report described a severe bilateral microphthalmia in a young Holstein calf. The anomalous calf with wry tail showed normal vigor, appetite and normal body weight except for eye defect. The orbits were shallower and smaller than normal. The orbit bilaterally contained a white small mass suspected as eyeball. A spot-like remnant of eyeball (REB) was buried in the mixture of vestigial extraocular muscles and adipose tissue of the bilateral orbit. Histologically, the REB was composed of irregularly arranged elements of ocular wall such as sclera, retina and ciliary body. But any destructive changes in the central nervous systems were not detected. This case of eye defect was defined as severe bilateral microphthalmia. The cause of this ocular defect is unknown.