• Title/Summary/Keyword: connective tissues

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Temporal Abscess Mimicking Temporomandibular Disorders

  • Jin, Jung-Yong;Suh, Bong-Jik;Lee, Kyung-Eun
    • Journal of Oral Medicine and Pain
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    • v.41 no.3
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    • pp.133-136
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    • 2016
  • Facial abscess is a suppurative condition that is caused by infection and that its infected materials built up within the loose connective tissues or a fascial space of the head and neck. Facial abscess should be treated with a caution since it can make threat to patient's life. When pus collects near masticatory muscles, it may lead to masticatory muscle disorder reducing the range of mouth opening and the mobility of jaw. The authors review an uncommon case of facial abscess which occurred in temporal muscle and induced mouth opening limitation.

Pathological Studies of Fibrinous Pleuritis in the Lung of the Korean Cattle (한우(韓牛)의 섬유소성(纖維素性) 늑막염(肋膜炎)에 관(關)한 병리학적(病理學的) 검색(檢索))

  • Lee, Joon Sup;Lim, Chang Hyeong
    • Korean Journal of Veterinary Research
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    • v.5 no.1
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    • pp.21-25
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    • 1965
  • Throughout the studies the followings were obtained and summarized here. 1. Thickenings of plerua were due to the organized fibrin deposition on the pleural surface. 2. Thickenings of plerura were accompanied with increaseness of fibrous connective tissues in the interlobular and alveolar septa. 3. Eosinophilic inclusions seemed to LCL bodies were observed in the cytoplasms of epithelial cells of bronchi, bronchial glands and in the cytoplasms of mononuclear cells. 4. Histo-pathologically, there were some evidences influenced by viruses and the organisms of Psittacosis-Lymphogranuloma Venereum Group.

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Mesenchymal stem cells and osteogenesis

  • Jung, Cho-Rok;Kiran, Kondabagil R.;Kwon, Byoung S.
    • IMMUNE NETWORK
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    • v.1 no.3
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    • pp.179-186
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    • 2001
  • Bone marrow stroma is a complex tissue encompassing a number of cell types and supports hematopiesis, differentiation of erythreid, nyel and lymphoid lineages, and also maintains undifferentiated hematopoietic stem cells. Marrow-derived stem cells were composed of two populations, namely, hematopoietic stem cells that can differentiate into blood elements and mesenchymal stem cells that can give rise to connective tissues such as bone, cartilage, muscle, tendon, adipose and stroma. Differentiation requires environmental factors and unique intracellular signaling. For example, $TGF-{\beta}$ or BMP2 induces osteoblastic differentiation of mesenchymal stem are very exciting. However, the intrinsic controls involved in differentiation of stem cells are yet to be understood properly in order to exploit the same. This review presents an overview of the recent developments made in mesenchymal stem cell research with respect to osteogenesis.

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A STUDY OF COMPARATIVE GROWTH DYNAMICS AND TOTAL PROTEINS BETWEEN GRANULATION TISSUE FIBROBLASTS AND NORMAL FIBROBLASTS (만성 염증시 치주 결체조직 세포 성장 및 총 단백질 변화에 관한 연구)

  • Lim, Jeong-Su;Oh, Kwi-Ok;Kim, Hyung-Sup
    • Journal of Periodontal and Implant Science
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    • v.23 no.1
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    • pp.135-143
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    • 1993
  • The investigation was undertaken to determin the altered function and structure of granulation tissue fibroblasts. Human granulation-tissue fibroblasts were cultured from periodontal chronic inflammatory lesions (SBI index : above 3) and compared with healthy gingival connective tissues fibroblasts a control(SBI index : below 1). Granulation tissue fibroblasts proliferated with a slower growth rate and exhibited larger cell size than control cells. Total protein profile of granulation tissue fibroblasts was almost identical to that of control cells with some exception. These results support tha theory that granulation tissue fibroblasts represent a distinct phenotype of fibrotic cells.

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Electron Microscopic Study of the Mast Cells of the Bat Stomach (박쥐 위의 비만세포에 대한 전자현미경적 연구)

  • Kang Ho-Suck
    • Applied Microscopy
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    • v.8 no.1
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    • pp.49-52
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    • 1978
  • Mask cells are distributed in the animal tissue, The bat subject has not been studied with the electron microscope, The material was fixed in 2.5% phosphate buffered glutaraldehyde for 24 hours at $4^{\circ}C$ and then post-fixed in phosphate buffered 1% osmium tetroxide for 2 hours at $4^{\circ}C$ and then the cleared tissues were embedded in Epon. The mast cell has numerous cytoplasmic processes projecting into the surrounding connective tissue. In general, the cytoplasmic granules showed ovoid, round, lunal or irregular shape, most of them were fine particulate substructure in texture. Especially, the granules was enclosed by the lamella structure.

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A Histopathological Study on Suture Granuloma in Neutralized Dogs (개에서 거세 후 발생한 봉합사 육아종의 병리조직학적인 연구)

  • Park, Chun-Ho;Kwon, Young-Sam;Isomura, Hiroshi
    • Korean Journal of Veterinary Research
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    • v.42 no.3
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    • pp.419-423
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    • 2002
  • Postoperative suture granuloma have rarely been reported in animals. Eight biopsy masses from testes areas of neutralized dogs were diagnosed as suture granuloma. The suture granuloma occurred at any time from several weeks to a few years after surgery and appeared to be testicular tumors by macroscopic examination. The granulomas were classified into three types based on the histopathological findings. The first type of pyogranuloma was mainly composed of neutrophils, macrophages, and suture fragments. The second type was chronic necrotizing granuloma which was well demarcated by fibrous connective tissues and was composed of a few suture fragments, macrophages and central fibrinoid necrosis. The third type of granuloma had a poorly defined margin with scarcely observed suture fragments and central necrosis in the tissue. These histopathological findings suggested that various types of suture granuloma may be caused by suture material and could even appear long after surgery.

MYOSITIS OSSIFICANS TRAUMATICA IN MASSETER MUSCLE (교근에서 발생한 외상성 화골성 근염)

  • Lee, Sang-Rae;Cho, Jae-O;Kang, Yoon-Goo
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.27 no.4
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    • pp.358-361
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    • 2001
  • We had experienced a case of traumatic myositis ossificans arising in right masseter muscle, inferior to zygomatic arch occurred on 25 year old male. He had some trauma on the site one year ago and visited with complaint of mouth opening limitation and swelling. Palpable mass with facial disfigurement was noted. and several ovoid radiopaque masses were revealed on C.T. examination. On histopathologic examination, multiple bone trabeculae with osteoblasts in its periphery was noted in connective tissues and invaded to neighbouring muscles, but any chondroid components were not revealed.

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Osteogenesis Imperfecta (Correction of Anterior Tibial Bowing) - A case report - (골형성 부전증환자의 경골 전방만곡 교정 치험례)

  • Seo, Jae-Sung;Ihn, Joo-Chul
    • Journal of Yeungnam Medical Science
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    • v.4 no.1
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    • pp.157-163
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    • 1987
  • Osteogenesis imperfecta has been categorized as a heritable disorder of connective tissue affecting both bone and soft tissues and is characterized by fragility of bone, blue sclerae, and deafness, less frequently by dentinogenesis imperfecta and laxity of ligament. The goals of orthopedic management with osteogenesis imperfecta are the treatment of acute fractures and long-term rehabilitation in an effort to maintain ambulation. We report a case of osteogenesis imperfecta with anterior bowing of tibia which was successfully corrected by multiple osteotomies and intramedullary fixation by Sofield method and reviewed literatures.

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Morphological studies on the hemal node in the sika deer (사슴 혈절에 관한 형태학적 연구)

  • Yoon, Yeo-sung;Han, Jeong-hee
    • Korean Journal of Veterinary Research
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    • v.31 no.4
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    • pp.381-387
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    • 1991
  • Deer hemal nodes were studied by gross anatomy and light microscopy. Hemal nodes were scattered in the periphery of thoracic and abdominal aortae, and spherical or avoid in shape. A hemal node consisted of a thin capsule and a hilum, and had numerous small subcapsular and deep sinuses distended by a great number of erythrocytes. Although a few lymphatic nodules and tissues were seen in the parenchyma, no typical cortex and medulla was defined. Blood vessels occurred, but lymph vessel was not observed in nodes. The parenchyma of the hemal node consisted of many erythrocytes and lymphocytes, and a few granulocytes, plasma cells megakaryocytes and macrophages. The stroma was composed of reticular cells and fibers. The capsule and trabecula was a collagenous connective tissue with smooth myofibers. The above findings suggest that the hemal nodes are involved in blood storage, blood filtration and immune reaction.

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Histologic Change of Free Muscle Graft in the Rabbit Pleural Space (토끼에서 늑막강내 자유근육이식의 조직학적 변화: 술후 공기누출방지를 위한 자유근육이식술의 예비실험)

  • 원용순
    • Journal of Chest Surgery
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    • v.22 no.1
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    • pp.10-15
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    • 1989
  • Excision of bullous emphysema or decortication of chronic empyema commonly results in a prolonged air leakage. Prolonged air leakage requires prolonged intercostal drainage, delays recovery, and can be followed complications such as pneumothorax, atelectasis, incomplete expansion of remained lung, secondary infection. To minimize these complications free muscle grafts can be used like a patch to close the opening of visceral pleura and reinforce suture lines without undue tension. From a preliminary study using the latissimus dorsi muscle as a free muscle graft in the rabbit pleural space, viable muscle fibers that seems the result of the process of regeneration can be consistently identified around the degenerating muscle fibers. Voluminous connective tissues and numerous blood vessels are also observed in the peripheral zone. Further studies in that free muscle graft will be sutured with visceral pleura and lung parenchyme will hopefully provide additional information before clinical application.

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