• 제목/요약/키워드: enucleation

검색결과 303건 처리시간 0.035초

Improved Enucleation Efficiency of Pig Somatic Cell Nuclear Transfer by Early Denudation of Oocytes at 30 Hours of In Vitro Maturation

  • Song, Kil-Young;Hyun, Sang-Hwan;Lee, Eun-Song
    • 한국수정란이식학회지
    • /
    • 제22권4호
    • /
    • pp.235-243
    • /
    • 2007
  • Our goal was to examine the effects of early denudation on the enucleation efficiency and developmental competence of embryos following somatic cell nuclear transfer (SCNT) and parthenogenetic activation (PA). Oocytes were denuded following 30 h of in vitro maturation (IVM) and then cultured with (D+) or without (D-) their detached cumulus cells for additional $10{\sim}14$ h. Control oocytes were denuded after $40{\sim}44$ h of IVM. The size of the perivitelline space was larger at 40 h of IVM ($11.7{\sim}11.8{\mu}m$) than at 30 h ($8.9{\mu}m;$ p<0.01). The distances between the metaphase II (M II) plates and the polar bodies (PBs) were shorter in D+ ($19.4{\mu}m$) and D- oocytes ($18.9{\mu}m$) than in control oocytes ($25.5{\mu}m;$ p<0.01). Enucleation rates following blind aspiration at 40 h of IVM were higher (p<0.01) in D+ (92%) and D- oocytes (93%) compared to controls (82%). Early denudation did not affect oocyte maturation or the in vitro development of SCNT and PA embryos. When SCNT embryos from D+ oocytes were transferred to four gilts, pregnancy was established in two pigs, and one of them farrowed three live piglets. In conclusion, early denudation of oocytes at 30 h of IVM could improve the enucleation efficiency by maintaining the M II plate and the PB within close proximity and support the in vivo development of SCNT embryos to term.

낭종적출술 후 발생한 원인 모를 국소적 지방이영양증: 증례보고 (Idiopathic Localized Lipodystrophy of Subcutaneous Fat after Cyst Enucleation of Jaw: Report of 3 Cases)

  • 이바다;나혜영;김남규;김형준
    • Maxillofacial Plastic and Reconstructive Surgery
    • /
    • 제34권3호
    • /
    • pp.205-208
    • /
    • 2012
  • Lipodystrophy is a disorder characterized by the loss of subcutaneous adipose tissue which is inherited or heterogeneously acquired. We report 3 uncommon cases of localized lipodystrophy on face which distinguished 1 year after cyst enucleation of mandibular posterior area.

Distribution of Calretinin in the Superficial Layers of the Mouse Superior Colliculus: Effect of Monocular Enuclection

  • 양혜원;전창진
    • Animal cells and systems
    • /
    • 제2권3호
    • /
    • pp.389-393
    • /
    • 1998
  • We localized a calcium-binding protein, calretinin, in the superior colliculus of the mouse and studied the distribution and effect of eye enucleation on the distribution of this protein. Calretinin was localized with immunocyto-chemistry. A dense plexus of anti-calretinin-labeled fibers was found within the superficial layers. The highest density was found in the deep superficial gray layer. Monocular enucleation produced an almost complete reduction of calretinin-immunoreactive fibers in the superficial layers of the superior colliculus contralateral to the enucleation. Furthermore, many calretinin-labeled cells appeared in the contralateral superior colliculus. These newly appeared neurons had small oval or round cell bodies. The results demonstrate that calretinin identify unique neuronal sublaminar organizations in the superior colliculus of the mouse. They also suggest that the retinal projection may control in part the content of calretinin in some neurons in the superficial layers of the mouse superior colliculus.

  • PDF

치성 낭종 및 종양의 치료를 위한 조대술의 사용 : 증례 보고(3례) 및 문헌 고찰 (Marsupialization for management of odontogenic cysts and tumors : Report of three cases with literature review)

  • 이재일;윤현중;이상화
    • 대한치과의사협회지
    • /
    • 제53권8호
    • /
    • pp.569-580
    • /
    • 2015
  • Cyst is a closed sac, having a distinct membrane and division compared to the nearby tissue. Most cysts in the oro-maxillofacial area are odontogenic origin and found most commonly by oral and maxillofacial surgeons. Enucleation is considered as a definitive therapy in the management of these cysts. However, to select the treatment method for large cyst, consideration of position of the cyst, size and accessibility to main structure are needed. Marsupialization is a minimal invasive technique to treat large odontogenic cyst and tumor without damage to adjacent important structures. This study was undertaken to describe three cases of odontogenic cysts and tumors of jaws that were successfully treated with enucleation after marsupialization.

악골내 거대 낭종 병소의 조대술 후 적출술의 시행 여부 및 적출 시기의 평가 (EVALUATION ON THE DECISION AND TIMING OF CYST ENUCLEATION AFTER MARSUPIALIZATION OF LARGE SIZED CYSTIC LESION ON THE JAWS)

  • 조지봉;이광호;이시현;김복주;김철훈;황대석;신상훈;김욱규
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
    • /
    • 제35권6호
    • /
    • pp.411-419
    • /
    • 2009
  • Objective: The purpose of this study was to determine whether cyst enucleation would be done after marsupialization of large cystic lesion on the jaws or not, and if so, when it should be done. Patients & Methods: 12 patients with cystic lesion treated by marsupialization only and 10 patients with cystic lesion treated by marsupialization followed by enucleation were examined in this study. Postoperative clinical and radiographic examinations were performed at 1, 4, 7, 10, 13, 16, 19 months on 22 patients. Bone regeneration and reduction rate of the residual cystic cavities and bone density were evaluated with a analysis of digital panoramic radiographs. Also histological evaluation of the healing process was performed on 1 patient. Results: Uneventful healing and spontaneous bony filling of the residual cavities were observed in all cases. Postoperative radiographs showed that the size of the lesions was reduced for a few months, but the reduction rate of the residual cavity was minimized for 13~16 months after marsupialization. The bone density was increased 22.5 % after 19 months. Conclusion: This results suggest that the appropriate timing to perform enucleation would be 13~16 months after marsupialization. The state of healing process could be confirmed by histological examination and radiographic evaluation of bone density. Enucleation after marsupialization could be applied appropriately to reduce the periods of bone healing in large cystic lesion on the jaws.

물리적 탈핵 방법이 소 복제수정란의 발달 능력에 미치는 영향 (Effect of Mechanical Enucleation Methods on Development of Bovine Nuclear Transfer Embryos)

  • 김세웅;이민정;황인선;배성훈;양병철;임기순;성환후;양보석;정희태;김동훈
    • Reproductive and Developmental Biology
    • /
    • 제30권3호
    • /
    • pp.207-212
    • /
    • 2006
  • 본 연구는 물리적 탈핵 방법인 aspiration 방법과 squeezing 방법을 사용해 핵이식된 소 체세포 복제란의 발달능을 조사하였다. 두 방법에 의해 탈핵된 수핵란에 한우 귀피부 세포를 융합하여 체외에서 $7{\sim}8$일간 배양하여 발육능을 검사하였다. 배양 7일째 배반포 발달율은 aspiration 방법($31.9{\pm}13.4%$)과 squeezing 방법($33.6{\pm}15.7%$) 간에 차이가 없었다. 또한 배양 8일째 배반포 발달율도 squeezing 방법($35.3{\pm}15.1%$)과 aspiration 방법($37.8{\pm}10.4%$) 간에 차이가 없는 것으로 나타났다. 배양 7일째 배반포의 평균 세포수에 있어 각 처리 간에 차이가 없는 것으로 조사되었으며(aspiration: $110.3{\pm}39.2$, squeezing $103.7{\pm}42.8$), 세포자연사의 비율에 있어서도 역시 유의적인 차이가 없는 것으로 조사되었다(aspiration: $2.8{\pm}2.6%$, squeezing: $4.3{\pm}4.4%$). 본 연구의 결과는 물리적 탈핵 방법인 aspiration 방법과 squeezing 방법 모두 소 체세포 복제수정란의 생산을 위한 유용한 방법임을 보여준다.

식도 평활근종;2례 보고 (Leiomyoma of The Esophagus - Report of two cases -)

  • 임승현
    • Journal of Chest Surgery
    • /
    • 제25권9호
    • /
    • pp.943-947
    • /
    • 1992
  • Intramural leiomyoma is the most common benign esophageal tumor, but it is rare compared with carcinoma. Although the most common symptom is dysphagia, this tumor may not cause symptoms before attaining large size. Radiographic and endoscopic findings allow an accurate diagnosis to be made before operation in most patients. The treatment of choice is enucleation without mucosal encroachment. Recently, we experienced two cases of esophageal leiomyoma on the mid portion of esophagus and enucleation of tumors were done by blunt dissection with caution. In one case, postoperative chylothorax was complicated, but cured with conservative treatment. The tissue diagnosis was confirmed with pathological finding.

  • PDF

하악골에 발생한 함치성양종의 치험예 (CASE REPORT OF DENTIGEROUS CYST OF MANDIBLE TREATE BY ENUCLEATION)

  • 최목균;배창;김석균
    • 대한치과의사협회지
    • /
    • 제16권11호통권114호
    • /
    • pp.857-860
    • /
    • 1978
  • An instance of dentigerous cyst, 6×2.5×1.5cm, occurred in posterior region of the right mandible, originated from 3rd molar, involved the 2nd premolar, 1st and 2nd molar in a 38-year-old man was observed and surgical enucleation followed by careful excision of all cyst wall was successfully carried out, recovery and healing were rapid and uncomplicated.

  • PDF

개의 모양체 종양 치료 3예 (Treatment of Ciliary Body Tumors in Three Dogs)

  • 이충호;김진현;김대용;윤정희;우흥명;권오경
    • 한국임상수의학회지
    • /
    • 제19권3호
    • /
    • pp.387-390
    • /
    • 2002
  • Ciliary body neoplasms are uncommon and have been described infrequently in the dog. We report successful treatment of three cases of canine ciliary body tumors that were diagnosed histologically as adenoma, adenocarcinoma, and malignant melanoma, respectively. They were presented with typical clinical signs that include glaucoma, anterior segment inflammation, and vision loss. On orbital ultrasound. very echodense masses involved in the ciliary body structure were revealed. Iridocyclectorny and enucleation were performed in lieu of attempts at orbital biopsy.