• Title/Summary/Keyword: third

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A STUDY ON THE EFFECTS OF THIRD MOLARS ON ANGLE'S CLASS III MALOCCLUSION (제3대구치가 Angle 씨 3급 부정교합에 미치는 영향에 관한 연구)

  • Lee, Jung-eun;Cha, Kyung-suk
    • The korean journal of orthodontics
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    • v.24 no.3 s.46
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    • pp.695-707
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    • 1994
  • This study investigates the effects of third molar on the occlusal plane in Angle's class El malocclusion with possibilities of posterior crowding and the interrelationships of occlusal plane inclinations to other skeletal patterns. Above investigations might showed that considerations should be given to third molars with possibilities of posterior crowding in establishing diagnosis and treatment plans for Angle's class III malocclusion patients. The following conclusions were obtained 1. In events of third molars causing possible posterior crowding, maxillary third molars showed more mesial inclinations than second molars, and compared to those with third molar missing cases, first molars were more mesially inclined and displaced more inferiorly from the palatal plane and OP-MP was increase , thus the occlusal plane was less steep. 2. In events of third molars causing possible posterior crowding, the anglulation between AB line and mandibular plane was decreased and ANB showed negative values. Thus chin points were more protruded, ramus were more anteriorly displaced, and increase in lower facial height, genial angle, effective mandibular length and mandibular plane angle were observed. This in all caused more vertical opening and more severe skeletal disturbance. 3. OP-MP was increased as the maxillary first molars were more inferiorly displaced from the palatal plane. As this angle was increased mandibular planes were more inferiorly inclined and LFH, genial angle, effective mandibular length were more increased and mandibular ramus was more anteriorly placed. 4. As the maxillary first molars were more inferiorly placed from the palatal plane, more increased OP-MP/PP-MP ratio made the occlusal plane less steep. As OP-MP/PP-MP was increased, mandibular ramus was more anteriorly placed and made longer, and facial angle and effective mandibular length were increased.

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Expression of β-tubulin III and Survivin in Advance Stage Breast Cancer Correlates with Chemotheraputic Effects of Docetaxel

  • Yuan, Shao-Fei;Zhu, Lin-Jia;Zheng, Wei-E;Chen, Hua;Wu, Li-Li;Zhang, Wu;Sun, Hong-Yu;Chen, Wen-Jun
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.1
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    • pp.361-365
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    • 2012
  • Aims: To investigate the relationship between the expression of ${\beta}$-tubulin III and survivin in advanced breast cancers and chemotherapeutic effects of docetaxel. Methods: Clinical pathological data of 74 patients with advanced breast cancer were retrospectively analyzed after docetaxel chemotherapy. Expression of ${\beta}$-tubulin III and survivin was assessed by immunohistochemistry and analyzed with reference to therapeutical and adverse effects of docetaxel. Results: The positive expression rate of ${\beta}$-tubulin III was 38.1% (32/84), while that of survivin was 76.2% (64/84). The effective rate (complete response + partial response) was 52.4%. That for patients with the positive expression of ${\beta}$-tubulin III or/and survivin was significantly lower than for those with negative expression (P<0.05). There were significant differences in the non-progression of median diseases, 1-year and 2-year survival rates of between the patients with positive and negative expression (P<0.05). The main side effects were myelosuppression, alimentary canal response and alopecie, no differences being observed between groups. Conclusions: The combined detection of ${\beta}$-tubulin III and survivin is a predictive index for chemotherapy effects of docetaxel in metastatic breast cancer.

The effect of third molar extraction on the periodontal status of the adjacent second molar (제3대구치의 발치가 인접 2대구치의 치주에 미치는 영향)

  • Kim, Hyung-Seop;Kim, Tae-Kyun;Heo, Soo-Rye;Cho, Ik-Hyun
    • Journal of Periodontal and Implant Science
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    • v.33 no.3
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    • pp.407-414
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    • 2003
  • The aim of this study was to investigate the effect of third molar extraction on the periodontal status of the adjacent second molar. A total of 61 second molars in 31 adult periodontitis patients were examined. Among them, 27 second molars without adjacent third molars were included in the test group, and 34 second molars with third molar were included in the control group. Clinical parameters including plaque index, gingival index, and pocket depth and radiographic bone loss were measured around the second molar both in test and control group. The result showed that: (1) the mean plaque index and gingival index of control group were higher than these of the test group but the difference was not statistically significant, (2) the mean pocket depth of the control group was higher than the test group significantly at distal and buccal surface, (3) radiographic hone loss was greater in control group than test group significantly, (4) in Pearson correlation analysis between the age of extraction and radiographic bone loss in the test group, a positive relationship was shown(p<0.01). Within limitation of this study, it may be concluded that third molar extraction in periodontitis patients showed an improvement in periodontal status in contrast the patients group having third molar, therefore earlier a removal of third molar may minimize radiographic hone loss of the adjacent second molar.

Study on real time monitoring to detect third party damage using vibration signal (진동신호를 이용한 타공사 조기 감시 기술 연구( I ))

  • Cho S.H.;Jeon K.S.;Park K.W.;Cho Y.B.;Li S.Y.;Kyo Y.T.
    • Journal of the Korean Institute of Gas
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    • v.4 no.1 s.9
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    • pp.1-8
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    • 2000
  • Third party damage is one of the causes intrimiting the safety of a buried pipelines and it is very important to detect third party damage on pipelines as soon as possible. The purpose of this study is whether third-party damage can be detected by accelerometer sensor and how far the third-party damage signal can propagate. And a pilot experiment was carried out in order to find third-party damage location. As a result, the detected signal's spectum is high frequency at short distances, as the distance is far, the signals in high frequency range are attenuated and those in low frequency range remain. It was also proved that third-party damage within 5.3km distance can be detected by monitoring vibration signals.

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Analysis of Key Genes and Pathways Associated with Colorectal Cancer with Microarray Technology

  • Liu, Yan-Jun;Zhang, Shu;Hou, Kang;Li, Yun-Tao;Liu, Zhan;Ren, Hai-Liang;Luo, Dan;Li, Shi-Hong
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.3
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    • pp.1819-1823
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    • 2013
  • Objective: Microarray data were analyzed to explore key genes and their functions in progression of colorectal cancer (CRC). Methods: Two microarray data sets were downloaded from Gene Expression Omnibus (GEO) database and differentially expressed genes (DEGs) were identified using corresponding packages of R. Functional enrichment analysis was performed with DAVID tools to uncover their biological functions. Results: 631 and 590 DEGs were obtained from the two data sets, respectively. A total of 32 common DEGs were then screened out with the rank product method. The significantly enriched GO terms included inflammatory response, response to wounding and response to drugs. Two interleukin-related domains were revealed in the domain analysis. KEGG pathway enrichment analysis showed that the PPAR signaling pathway and the renin-angiotensin system were enriched in the DEGs. Conclusions: Our study to systemically characterize gene expression changes in CRC with microarray technology revealed changes in a range of key genes, pathways and function modules. Their utility in diagnosis and treatment now require exploration.

Allogeneic Hemopietic Stem Cell Transplants for the Treatment of B Cell Acute Lymphocytic Leukemia

  • Dong, Wei-Min;Cao, Xiang-Shan;Wang, Biao;Lin, Yun;Hua, Xiao-Ying;Qiu, Guo-Qiang;Gu, Wei-Ying;Xie, Xiao-Bao
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.15
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    • pp.6127-6130
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    • 2014
  • Objective: Explore the feasibility of allo-hemopietic stem cell transplants in treating patients with B cell acute lymphocytic leukemia. Methods: Between september 2006 and February 2011, fifteen patients with B cell acute lymphocytic leukemia (ALL) were treated by allo-hemopietic stem cell transplants (HSCT). Stem cell sources were peripheral blood. Six patients were conditioned by busulfan (BU) and cyclophosphamide (CY) and nine patients were conditioned with TBI and cyclophosphamide (CY). Graft versus host disease (GVHD) prophylaxis regimen consisted of cyclosporine A (CSA), methotrex ate (MTX) and mycophenolatemofetil (MMF). Results: Patients received a median of $7.98{\times}10^8{\cdot}kg^{-1}$ ($5.36-12.30{\times}10^8{\cdot}kg^{-1}$) mononuclear cells (MNC). The median time of ANC> $0.5{\times}10^9/L$ was day 12 (10-15), and PLT> $20.0{\times}10^9/L$ was day 13 (11-16). Extensive acute GVHD occurred in 6 (40.0%) patients, and extensive chronic GVHD was recorded in 6 (40.0%) patients. Nine patients were alive after 2.5-65 months follow-up. Conclusion: Allogeneic stem cell transplant could be effective in treating patients with B cell acute lymphocytic leukemia.

A Study on Female Image of the Third wave Feminism in Fashion Photographs (패션사진에 나타난 3세대 페미니즘 여성이미지)

  • Park, Jeongsil;Ha, Jisoo
    • Fashion & Textile Research Journal
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    • v.17 no.1
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    • pp.33-41
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    • 2015
  • It analyzes the expressive characteristics of the third wave feminism revealed in the fashion photographs and examines the feminine image affected by the third wave feminism. For the research purposes, both literature review and case study were conducted together. Through the analysis on the expressive characteristics of the fashion photographs based on the characteristics of the third wave feminism, the followings are definitions of the feminine image affected by the third wave feminism. First, as the 'Female image with sexual freedom', it escapes from the passive viewpoint and expresses liberation and rights of women as the subject of the power rather than subordination using sexuality of women actively. Second, as the 'Female image with multiple aspects', it pursues an independent and strong image, challenges and threatens the man power. Third, as the 'Multicultural female image', it reduces a gap among colored races and many other cultures, seeks after rights and freedom independently escaping from the dual oppression, Fourth, as the 'Queer female image', it disorganizes dichotomous gender identity actively and pursues diverse gender identities. So, it shows that the third wave feminism expressed by the various media cultures influences the feminine image in a society at large creating a new image of a woman through exchanging and communicating with its recipients.

Ginsenoside-Rh2 Inhibits Proliferation and Induces Apoptosis of Human Gastric Cancer SGC-7901 Side Population Cells

  • Qian, Jun;Li, Jing;Jia, Jian-Guang;Jin, Xin;Yu, Da-Jun;Guo, Chen-Xu;Xie, Bo;Qian, Li-Yu
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.4
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    • pp.1817-1821
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    • 2016
  • Objectives: To observed the effects of ginsenoside -Rh2 (GS-Rh2) on proliferation and apoptosis of side population (SP) human gastric cancer SGC-7901 cells. Materials and Methods: SGC-7901 SP and Non-SP cells were sorted by flow cytometry and assessed using the cck-8 method. Expression of apoptosis-related proteins Bax and Bcl-2 of SP before and after the intervention was determined by Western-blotting. Results: It was found that the proliferation of SP was significantly faster than that of NSP (P<0.05). In addition, GS-Rh2 inhibited proliferation of gastric cancer SP cells, induced cell cycle arrest and cell apoptosis, and changed the expression of BAX/Bcl-2 proteins in a time-dependent and concentration-dependent manner (P<0.05). Conclusions: With increase of GS-Rh2 dose, GS-Rh2 gradually inhibit the proliferation of SGC-7901 SP cells, which have high proliferation rate, through G1/G0 phase arrest, followed by apoptosis which involves the up-regulation of Bax and the down-regulation of Bcl-2.

Validity of the vertical tube-shift method in determining the relationship between the mandibular third molar roots and the inferior alveolar nerve canal

  • Arora, Anjana;Patil, Bharati A.;Sodhi, Amandeep
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.41 no.2
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    • pp.66-73
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    • 2015
  • Objectives: To assess the validity of the vertical tube-shift method using intraoral periapical radiography (IOPAR) for determining the relationship between the mandibular third molar roots and the inferior alveolar nerve (IAN) canal in comparison with cone-beam computed tomography (CBCT). Materials and Methods: Fifty impacted mandibular third molars were analyzed using the IOPAR vertical tube-shift method and CBCT. The relationship of the IAN canal to the impacted mandibular third molar was recorded as buccal, lingual or in line with the apex and was compared with CBCT findings. The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of the vertical tube-shift method in depicting the relationship (buccal/lingual/in line with the apex) of the IAN canal to the third molar root apex was calculated. Results: The sensitivity and specificity PPV and NPV of the IOPAR vertical tube-shift technique was found to be highest for a lingual relationship (100%) followed by buccal (94.4%, 92.3%, 97.1%, and 85.7%) and in line with the apex relationship (88.9%, 95.0%, 80.0%, and 97.4%) of the IAN canal with the third molar root apex, respectively. A statistically significant association was observed between the IOPAR vertical tube-shift method and the CBCT with a P-value <0.01. Conclusion: The vertical tube-shift method can be used as an effective diagnostic tool in assessing the relationship of the IAN canal to the third molar root apex with high sensitivity, specificity, PPV, and NPV.

Characteristics of bony changes and tooth displacement in the mandibular cystic lesion involving the impacted third molar

  • Lee, Jin-Hyeok;Kim, Sung-Min;Kim, Hak-Jin;Jeon, Kug-Jin;Park, Kwang-Ho;Huh, Jong-Ki
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.40 no.5
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    • pp.225-232
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    • 2014
  • Objectives: The purpose of this retrospective study is to find the differentiating characteristics of cystic and cystic-appearing lesions that involve the impacted mandibular third molar by analyzing panoramic radiographs and computed tomography images, and to aid the preoperative diagnosis. Materials and Methods: Eighty-one patients who had a mandibular cystic or cystic-appearing lesion that involved impacted mandibular third molar and underwent cyst enucleation were included in the study. The preoperative panoramic radiograph and computed tomography findings were analyzed in accordance to the histopathologic type. Results: Most of the cystic lesions containing the mandibular third molar were diagnosed as a dentigerous cyst (77.8%). The occurrence of mesio-distal displacement of the third molar was more frequent in the odontogenic keratocyst (71.4%) and in the ameloblastoma (85.7%) than in the dentigerous cyst (19.1%). Downward displacement was primarily observed in each group. Odontogenic keratocyst and ameloblastoma showed more aggressive growth pattern with higher rate of bony discontinuity and cortical bone expansion than in dentigerous cyst. Conclusion: When evaluating mandibular cystic lesions involving the impacted mandibular third molar, dentigerous cyst should first be suspected. However, when the third molar displacement and cortical bone absorption are observed, then odontogenic keratocyst or ameloblastoma should be considered.