• 한국잠사곤충학회지
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• 제18권2호
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• pp.1-60
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• 1976

본 연구에서는 전자현미경과 Radioautography에 의하여 가잠의 휴면 기구를 연구하였다. 1. 가잠의 휴면성은 최청중의 온도와 명장에 의하여 변하기 쉬운 것으로서 특히 배자의 후기와 관계가 깊다는 사실은 잘 알려저 있다. 그러므로 저온과 고온최청의 경우 가잠의 배자 발생 단계중에 있어서 핵산과 단백질의 전구물질을 사용하여 합성의 Pattern을 조사하였다. 고온최청 때에는 반전후 3일째에 $^3$H-glycine이 배자의 뇌와 식도하신경구에 다량으로 들어가 있는 동시에 타부위에도 약간이나마 들어가 있었다. 그러나 저온최청 때에는 뇌와 식도하신 경구 그리고 타부위 사이에 차이가 없었다. 고온과 저온과의 사이에는 배자의 DNA 합성의 차리를 인정할 수 없었다. 산난후 20일째의 휴면난에 있어서는 소수의 중배엽세포의 핵에 들어가 있었으나 월연한 잠난에 있어서는 중배엽의 전핵에 들어가 있었다. 고온과 저온최청때에 반전후의 배자의 전부 즉 뇌와 식도하신경구의 주위에만 $^3$H-thymidine이 들어가 있는 것을 볼 수 있었으나 후부에서는 전혀 볼 수 없었다. 한편 전 최청기간중 또는 산난후 20일째의 난황세포에 있어서는 단백질합성과 나NA 합성을 인정하지 못하였으나 월년난 배자의 부속지 발생전까지는 RNA합성이 관찰되었다.

• 대한치과의사협회지
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• 제49권8호
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• pp.472-477
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• 2011

Dermoid cyst is a benign neoplasm, so called by teratoma that is derived from both ectoderm and mesoderm during embryonic period. The majority of dermoid cysts are found in the ovaries and approximately only 7% of dermoid cysts are found in the head and neck. The growth of dermoid cysts in the floor of the mouth is considered a rare condition. We report one case of huge dermoid cyst in the floor of mouth suffered with double chin appearance and difficulty in pronunciation and respiration. The cyst was excised successfully only intra-oral incision. Clinical progress was uneventful and postoperative recovery excellent without recurrence.

• Journal of Chest Surgery
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• 제17권3호
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• pp.497-504
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• 1984

The malignant germ cell tumor found in the gonad can originate in the anterior mediastinum. Endodermal sinus tumor[Yolk sac tumor] is a kind of malignant germ cell tumor and is derived from extra-embryonic mesoderm. We experienced a case of primary mediastinal endodermal sinus tumor occurred in 22 year old male patient. His chief complaint was anterior chest pain for 2 days. The tumor located in the anterior mediastinum and invaded upper lobe of the deft lung and pericardium. A left upper lobe resection including phrenic nerve and pericardium was performed and the tumor in the anterior mediastinum was excised. The patient has been treated with combination chemotherapy[Cis-platinum, Vincristine, Actinomycin-D, & Cyclophosphamide} and followed up for 4 months with partial remission.

• 동의생리병리학회지
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• 제16권6호
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• pp.1110-1116
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• 2002

The skin(皮膚) separates epidermis(皮) and dermis(膚) in Oriental medicine. epidermis and hair come from ectoderm as dermis comes from mesoderm in embryology. Epidermis and hair belong to the Metal(金) and dermis belongs to the Earth(土) in Oriental medicine. The lung is related to the skin and hair. The skin surface is nourished by the essence from the lung, and the. lung has the function of sending wei-qi(衛氣.: defensive Energy) to the skin surface to guarantee body resistance. The skin takes nourishment from blood(血) and express by qi(氣). The supply of nutrients to the lung and skin relies on the function of the spleen, pancreas and subcutis. Flaming of the heart fire may scorch the essence of the lung-metal, inducing dermatosis.

• 대한두경부종양학회지
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• 제25권2호
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• pp.160-162
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• 2009

Dermoid cysts are benign neoplasm that is derived from both ectoderm and mesoderm. They may be found at various sites of the body, but are extremely rare to occur in the lower neck. We present the case of a 22-year old woman with a midline cystic mass anterior to the cervical trachea. The mass was excised under local anesthesia. Histopathologically the diagnosis was confirmed as a dermoid cyst.

• 생명과학회지
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• 제9권5호
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• pp.504-509
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• 1999

The trend of organogenesis in Xenopus presumptive ectoderm was studied by combined dose of activin A and IGF-1(insulin-like growth factor-1). In reference study of Asashima and his colleagues, the inductive patterns of various organs were reported with activin, the potent mesoderm inducing factor. In present study, the inducing pattern was cleared with combined-dose of concentration 1-100 ng/ml activin A and IGF-1. In addition, the result from single treatment of activin A was compared with former study. As a result, eye was differentiated in 5-20% of explants at 10 and 50 ng/ml concentrative combination of activin A. Otic vesicle was appeared in the entire concentrative combination of IGF-1. Pronephric duct was induced 19-38% of explants at the concentration of activin A 100 ng/ml by adding IGF-1. The comparison of single treatment of activin A was showed some difference in dose-dependent inducing pattern.

• 생명과학회지
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• 제14권3호
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• pp.375-384
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• 2004

FGFs는 Xenopus의 초기 배발생에서 중배엽 형성, 전후축패턴형성, scatter factor로서 낭배기의 기관형성에 관여하는 등 다양한 기능을 가지고 있는 것으로 알려져 있다 그 중 bFGF는 배양 분리편으로부터 다양한 기관을 유도해낼 수 있으며 그 효과는 처리시간 및 농도 의존적이라고 알려져 왔다. 본 연구는 Xenopus의 예정표피역을 분리하여 bFGF와 HGF을 단독 및 복합처리 하였을 때 기관분화 및 유도효과를 검토하기 위하여 실시하였다. 단독처리 및 복합 처리된 배양액에 동물극 분리편을 정상배가 st. 43에 이를 때까지 2$0^{\circ}C$에서 3일간 배양하여 조직학적 및 면역조직화학적 방법으로 조직의 분화양상을 확인하였다. 성장인자는 bFGF를 0, 0.5, 1. 10. 50 ng/ml의 농도와 HGF를 0, 1, 10, 50, 100ng/ml의 농도로 조합하여 처리한 결과 bFGF 단독처리 때보다 HGF와의 혼합처리에서 기관분화율의 상승효과가 관찰되었다. 분화된 기관은 1 ng/ml의 bFGF 와 10ng/ml의 HGF, 10ng/ml의 bFGF와 1ng/ml의 HGF의 농도에서 매우 다양한 것으로 나타났다. 눈은 1과 10ng/ml의 bFGF ,그리고 1과 10 ng/ml의 HGF 농도조합에서 높은 비율로 분화하였다. 또한 분리편 배양에 의해 유도된 눈과 정상 배의 눈에서 RPE65를 인식하는 단일클론 항체 40All, 25F5를 사용하여 AP 반응이 강하게 나타나 눈의 유도를 확인할 수 있었다.

• Animal cells and systems
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• 제1권2호
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• pp.329-335
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• 1997

The final pattern of the skeletal muscle of a vertebrate depends on the position-specific behavior of the muscle precursor cells during early developmental process and the abdominal muscle is made of cells which migrate a relatively long distance from their original tissue, myotome of dorsal mesoderm. We report the spatia-temporal migration pattern of abdominal muscle in Xenopus laevis by in situ hybridization and immunohistological studies. Shortly after hatching tadpole stage (stage 31/32), a group of myotomal cells detaches from the lower tip of the second somite and migrates ventrally to the lower position of abdomen. At stage 34/35, a second cell group migrates away from the third somite. Total 7 myotomal cell groups migrate ventrally one by one from the second to eighth myotome along their own pathways through the cell free space located between epidermis and subepidermal layer of the abdomen. During migration, the sizes of the cell groups (abdominal muscle anlagens) are increased to several tens fold. Around stage 40 all the abdominal muscle anlagens reaches their final positions and are interconnected side by side rostrocaudally. They are also connected to other types of muscles, forming a large multisegmented abdominal muscle. Heat shock study suggests that the disruption of segmentation of somites does not block the detachment of abdominal muscle anlagen, though the treatment gave stage- and dosagedependent effects on the migration speed.

• Journal of Yeungnam Medical Science
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• 제15권2호
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• pp.381-390
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• 1998

저자들은 출생시부터 군집상의 홍반성 수포와 부분적으로 사마귀양 병변이 섞여 있는 피부병변을 보인 남아에서 생후 10주부터 갈색 및 검은 색의 색소 침착이 나타나 Bloch-Sulzberger 형의 색소실조증(incontinentia pigmenti)이 의심되어 시행한 피부 생검소견으로 호산성질을 함유한 다수의 수포성 병변이 과각화증과 함께 관찰되는 수포기(bullous stage)와 우상기(verrucous stage)에 속하는 색소실소증으로 확진되고 동반된 증상으로는 경련과 좌안 망막의 삼출성 병변이 관찰된 증례를 경험하였다. 이에 저자들은 지금까지 우리 나라에서는 2례 밖에 소개된 바 없는 남아에서 발생한 색소실조증을 문헌고찰과 함께 보고하였다.

• BMB Reports
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• 제47권3호
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• pp.135-140
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• 2014

The mesenchymal stem cells (MSCs), which are derived from the mesoderm, are considered as a readily available source for tissue engineering. They have multipotent differentiation capacity and can be differentiated into various cell types. Many studies have demonstrated that the MSCs identified from amniotic membrane (AM-MSCs) and amniotic fluid (AF-MSCs) are shows advantages for many reasons, including the possibility of noninvasive isolation, multipotency, self-renewal, low immunogenicity, anti-inflammatory and nontumorigenicity properties, and minimal ethical problem. The AF-MSCs and AM-MSCs may be appropriate sources of mesenchymal stem cells for regenerative medicine, as an alternative to embryonic stem cells (ESCs). Recently, regenerative treatments such as tissue engineering and cell transplantation have shown potential in clinical applications for degenerative diseases. Therefore, amnion and MSCs derived from amnion can be applied to cell therapy in neuro-degeneration diseases. In this review, we will describe the potential of AM-MSCs and AF-MSCs, with particular focus on cures for neuronal degenerative diseases.