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( Hyun Su Baek ),( Hye Sung Lee ),( Bok Joo Kim ),( In Kyo Chung ),( Chul Hoon Kim ),( Sun Mi Jin ),( Hie Sung Hwang ),( Sang Hun Shin2 ) 한국조직공학·재생의학회 2011 조직공학과 재생의학 Vol.8 No.6
The objective of this study was to evaluate platelet-rich fibrin (PRF)’s effectiveness in repairing articular disc defect in the temporomandibular joint (TMJ) of rabbits. Eight rabbits were divided into four groups of two rabbits each, corresponding to groups A, B, C, and D. Both TMJs of all of the rabbits were used in the experiments: the right joints comprised the experimental groups, and the left ones, the control groups. The disc defect was circular and 2 mm in diameter. In the experimental groups, the PRF was compressed into the defect, whereas the control group defects were left untreated. A, B, C, and D groups were sacrificed at the 1st, 2nd, 4th and 6th weeks, respectively. The defects of each control group exhibited no specific changes. Contrastingly, in each experimental group, there was an increased number of chondroblasts at the margins of the defects, along with accelerated cell differentiation and a columnar cell arrangement observable at the time of cell differentiation. The experimental groups showed inflammatory cell infiltrations and fibrosis by the 1st week, maturation of chondrocytes by the 2nd week, and proliferation by the 4th week, after which the defects began to be filled with chondrocytes, a process that was complete after the 6th week. In the histological evaluation (H-E), the experimental groups showed significant increases of chondroblasts after the 2nd and 4th weeks, as well as regular columns of chondrocyte arrays observable during cell division. After 6 weeks, the defects were filled with chondrocytes.
김희진(KIM Hee Jin),강민규(KANG Mill Kyu),김진학(KIM Jm Hak),박재한(PARK Jae Han),이상섭(LEE Sang Heon),이상헌(LEE Sang Sup),정인혁(CHUNG In Hyuk2) 대한체질인류학회 1997 대한체질인류학회지 Vol.10 No.2
연구자들은 한국인 어른 남녀 시신의 머리와 목 61 을 대상으로 깊은 층 육안해부를 시행하여 혀동맥의 형태를 조사하였다 혀동맥이 일어나는 유형은 위갑상동맥, 혀동맥, 그리고 얼굴동맥이 바깥목동액에서 따로 가지를 내어 나뉘는 경우가 563% 호 가장 않았으며, 얼굴동맥과 혀동맥이 강은 가지에서 얼어나 나뉘는 경우 (312%), 그리고 위 강상동액과 혀동맥이 같은 가지에서 나뉘는 경우 (12 5%) 등이 있었다. 혀동맥과 혀동맥의 둘째 부분은 덮는 목뿔혀근 과의 영대학적 관계는 각각 혀동맥의 첫째 부분이 목뿔혀근 뒤에서 심하게 휘어져 깊은 층으로 들어가는 유형 (41 2 %), 그리고 혀동맥의 첫째 부분이 목뿔혀근의 뒤쪽 근육모셔리 바로 뒤흘 지나 깊은 층으로 들어가는 경우가 661% 로 가장 많았다 목뿔혀근 깊은층에서 혀동맥의 둘째 부분이 달리는 양상은 급하게 위쪽으로 꺾역 달리다가 다시 앞쪽으로 꺾여 혀의 깊은 곳으로 들어가는 경우와 목뿔빼에서 혀쪽으로 완만한 굽이플 이루며 올라가는 경우가 비슷한 반도로 관찰되었다. 입안바닥에 분포하는 혀밑동맥이 혀동맥 셋째 부분에서 나오는 경우슨 전체의 590% 에서만 관창되었으며 그 외는 대부분 얼굴동맥의 턱끝 및동맥 가지가 턱옥뽕근응 옳고 입안바닥에 분포하였다. 따라서 연구자들은 한국인 업안바 닥에는 혀동액이 전체의 59%에서만 분포하며 그외는 영굴동액의 턱끝밑동맥 가지 , 그리고 기타 다른 동맥의 가지들이 분포한다는 사실을 확인하였다
Glomerular crescents are associated with worse graft outcome in allograft IgA nephropathy
Park, Sehoon,Baek, Chung Hee,Cho, Hyunjeong,Yu, Mi‐,yeon,Kim, Yong Chul,Go, Heounjeong,Kim, Young Hoon,Lee, Jung Pyo,Min, Sang Il,Ha, Jongwon,Moon, Kyung Chul,Kim, Yon Su,Ahn, Curie,Park, Su2 Wiley (Blackwell Publishing) 2019 American journal of transplantation Vol.19 No.1
Jung, Chang H.,Yang, Yoo‐,Soo,Kim, Jun‐,Seob,Shin, Jae‐,Il,Jin, Yong‐,Su,Shin, Jae Y.,Lee, Jong H.,Chung, Koo M.,Hwang, Jae S.,Oh, Jung M.,Shin, Yeon‐,Kyun,Kweon, Dae2 Blackwell Publishing Ltd 2008 FEBS JOURNAL Vol.275 No.12
<P>Soluble <I>N</I>‐ethylmaleimide sensitive‐factor attachment receptor (SNARE) proteins have crucial roles in driving exocytic membrane fusion. Molecular recognition between vesicle‐associated (v)‐SNARE and target membrane (t)‐SNARE leads to the formation of a four‐helix bundle, which facilitates the merging of two apposing membranes. Synthetic peptides patterned after the SNARE motifs are predicted to block SNARE complex formation by competing with the parental SNAREs, inhibiting neuronal exocytosis. As an initial attempt to identify the peptide sequences that block SNARE assembly and membrane fusion, we created thirteen 17‐residue synthetic peptides derived from the SNARE motifs of v‐ and t‐SNAREs. The effects of these peptides on SNARE‐mediated membrane fusion were investigated using an <I>in vitro</I> lipid‐mixing assay, <I>in vivo</I> neurotransmitter release and SNARE complex formation assays in PC12 cells. Peptides derived from the N‐terminal region of SNARE motifs had significant inhibitory effects on neuroexocytosis, whereas middle‐ and C‐terminal‐mimicking peptides did not exhibit much inhibitory function. N‐terminal mimicking peptides blocked N‐terminal zippering of SNAREs, a rate‐limiting step in SNARE‐driven membrane fusion. Therefore, the results suggest that the N‐terminal regions of SNARE motifs are excellent targets for the development of drugs to block SNARE‐mediated membrane fusion and neurotransmitter release.</P>
Eun Mee Oh<SUP>1<,SUP>,Yoo Seung Chung<SUP>1<,SUP>,Won Jong Song<SUP>1<,SUP>,Yeun Sun Kim<SUP>2<,SUP>,Young Don Lee<SUP>1<,SUP> 대한갑상선-내분비외과학회 2013 The Koreran journal of Endocrine Surgery Vol.13 No.3
Purpose: Neck ultrasonography (NUS) is one of the most commonly used methods for evaluating thyroid nodules and preoperative higher TSH levels are known to be associated with differentiated thyroid cancers. This study was conducted to assess whether serum TSH levels and neck ultrasonography are of value in predicting malignancy in patients with atypia of undetermined significance/follicular lesions of undetermined significance (AUS). Methods: A total of 62 patients (7 men, 55 women; mean age 48.4±11.9 years) who had indeterminate cytologic results indicating AUS underwent thyroidectomy. Preoperative clinical data including serum TSH and the findings of NUS were analyzed retrospectively between malignant and non-malignant groups. Results: The final pathologic results of malignancy were reported in 53 of 62 (85.5%) patients with AUS. There was no significant difference in the mean value of preoperative serum TSH between malignant and non-malignant groups (1.5±1.3 vs. 1.9±1.2, P=NS). In NUS, the patients diagnosed with malignancy in histology showed a higher proportion of calcification, taller-than-wide shape, hypoechoic texture and irregular margin (58.5% vs. 22.2%, P=0.044; 34% vs. 0%, P=0.038; 98.1% vs. 44.4%, P<0.01; 47.2% vs. 0%, P= 0.008). Conclusion: Serum TSH was not related to malignancy in thyroid nodules showing AUS. However, ultrasonographic features including calcifications, taller-than-wide shape, hypoechoic pattern and irregular margin could be used to predict malignancy. Ultra-sonography should be the first useful methods when making decisions regarding mana-gement of thyroid nodules showing indeterminate cytologic results as AUS.