• 제목/요약/키워드: Ki-1

검색결과 27,145건 처리시간 0.056초

Ki-67 Labeling Indices in 'Classic' versus 'Blastoid' Mantle Cell Lymphomas - Proposed Cutoff Values for Routine Diagnostic Workup

  • Pervez, Shahid;Haroon, Saroona;Awan, Dreema
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권15호
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    • pp.6591-6594
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    • 2015
  • Background: Mantle-cell lymphoma (MCL) is a unique entity of peripheral B-cell lymphoma that has a discrete morphologic, immunologic, and genetic phenotype, with more common 'classic' and less frequent 'blastoid' and 'pleomorphic' variants, associated with an aggressive clinical course. The aim of this study was to analyze proliferation (Ki-67) indices of 'classic' (c-MCL) and 'blastoid' (b-MCL) variants of a cohort of MCL and to suggest cut off values for the Ki-67 proliferation index in these two subsets. Materials and Methods: MCL cases diagnosed over $4{\frac{1}{2}}$ years at Section of Histopathology, Department of Pathology and Laboratory Medicine, Aga Khan University Hospital, Karachi were retrieved and reviewed. Ki-67 labelling was scored and analysed. Results: A total of 90 of cases of MCL were scrutinized. Mean age ${\pm}SD$ was $60.2{\pm}12.5$ years and the male to female ratio was 4:1, with 67 (75%) cases of c-MCL and 23 (25%) cases of b-MCL. Most samples were lymph node biopsies (n=68), whereas the remainder were from various extranodal sites The mean Ki-67 proliferation index was $29.5%{\pm}14.4%$ in classic variants and $64.4{\pm}15.2%$ for the blastoid variant, the difference being statistically significant (p = 0.029). Conclusions: It was concluded that differential cut-off values of Ki-67 labeling may be used in more objective way to reliably classify MCL into classic or blastoid variants by diagnostic pathologists. We propose a < 40 proliferative index to be suggestive of c-MCL and one of > 50 for the blastoid variant.

Expression of Ki67 in Papillary Thyroid Microcarcinoma and its Clinical Significance

  • Zhou, Yuan;Jiang, Hong-Gang;Lu, Ning;Lu, Bo-Hao;Chen, Zhi-Heng
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권4호
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    • pp.1605-1608
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    • 2015
  • Purpose: To investigate the expression of Ki67 protein in papillary thyroid microcarcinoma(PTMC), and to analyze its clinical significance. Materials and Methods: Ki67 protein expression was evaluated in the tissues of 108 human PTMC and 50 other benign papillary hyperplasia of thyroid specimens using immunohistochemistry. Results: The expression intensity of Ki67 in PTMC and benign papillary hyperplasia of thyroid specimens were $1.45{\pm}1.83%$ and $0.46{\pm}0.46%$.The positive expression rates were 46.3% and 14%. There were significant differences between these two groups (p<0.01). There was no significant variation of the expression intensity and positive expression rates of Ki67 in PTMC with gender, age, position of the tumor and the level of TSH pre-operation (p>0.05), but these parameters varied with tumor size, invasion by membrane and cervical lymph node metastasis (p<0.05 or p<0.01). Conclusions: The expression of Ki67 in PTMC was related to tumor size, invasion by membrane and cervical lymph node metastasis, and could be the important indicator for judging clinical progress and estimating prognosis.

음곡에 시행한 적소두약침이 LPS로 유도된 흰쥐의 급성 신장염에 미치는 영향 (The Effect of Phaseoli Semen Herbal-acupuncture at $KI_{10}$ in Lipopolysaccharide Induced Acute Nephritis in Rats)

  • 곽규인;강재희;이현
    • Journal of Acupuncture Research
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    • 제30권3호
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    • pp.61-73
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    • 2013
  • Objectives : This study was designed to evaluate the effects of Phaseoli Semen Herbal-acupuncture(PS-HA) at $KI_{10}$ in acute nephritis induced by lipopolysaccharide(LPS) in rat. Methods : The rats were divided into 5 groups, which were control, LPS, PS-HA, NP and saline group. LPS, PS-HA, NP and saline groups were given LPS to induce acute nephritis and control group did not receive LPS. LPS group did not receive any treatment after the onset of acute nephritis. PS-HA, NP and saline group received PS-HA, normal acupuncture, and saline injection at $KI_{10}$ three times per week, respectively. To evaluate the effect of PS-HA at $KI_{10}$, the complete blood count, BUN, creatinine, TNF-${\alpha}$, and CINC-1 in serum were measured. To show its effect on renal function, creatinine, and total protein in urine was measured as well as urine output. The level of myeloperoxidase in renal tissue was quantified and complete histology was done in kidney samples obtained from the rats. Results : PS-HA group showed a significant reduction in the proportion of WBC and neutrophil, serum BUN, TNF-${\alpha}$, and CINC-1 compared to LPS group. Furthermore, a significant increase in urine output and a decrease in urinary creatinine level, MPO in renal tissue, and number of neutrophils at glomerulus was observed in PS-HA group compared to LPS group Conclusions : PS-HA at $KI_{10}$ was shown to have a significantly effect on treating LPS induced acute nephrits. Therefore, future study is needed to further evaluate the clinical usefulness of PS-HA at $KI_{10}$ in treating acute nephritis.

『동의보감(東醫寶鑑)』의 '형기론(形氣論)'에 대한 소고 (A View on Hyung-Ki in Donguibogam)

  • 박준규;차웅석;김남일
    • 한국의사학회지
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    • 제23권1호
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    • pp.55-65
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    • 2010
  • The narration of "Donguibogam" is focused on humans whilst medical books before it focused on diseases. This is shown from the first subtitle of External Body(身形門) chapter, [The Origin of Hyung-Ki(形氣之始)]. The contents of [The Origin of Hyung-Ki] explains that the human body is composed of 'Hyung(形)' and 'Ki(氣)' This perspective is shown throughout "Donguibogam". First, in the aspect of construction, the viewpoint is shown from the JipRye(集例). It divides the body into inside and outside, which is a result of Hyung-Ki perspective. This continues in the table of contents. Naegyeongpyeon(內景) and Oehyeongpyeon(外形) describes the inside and outside of the body, in other words 'Hyung-Ki'. Japbyeongpyeon(雜病) describes complex illnesses with mixed insides and outsides. Tangaekpyeon(湯液) and Chimgupyeon(鍼灸) can be understood as division of treatment methods into inside and outside. When we look at the contents, the human body is created on the basis of the essence and vital energy of the world. Cheon-Ki becomes the 'Ki' that forms the functions of the body, while Ji-Ki becomes the 'Hyung' that constructs the bodily structure. It is considered that 'Hyung' is composed of SaDae(the body essence, vital energy, mentality and blood), and 'Ki' is composed of OSang(the five Jang organs and six Bu organs). 'Hyung' and 'Ki' show various appearances according to physiology and pathology. 'Hyung' is especially shown by obesity or thinness, 'Ki' by color. The obese may have Ki deficiency, coldness, dampness or phlegm. The thin could have blood deficiency, heat, fire or dryness. The color could show the pathology of the five Jang organs by the five colors, but it can simply be divided into black and white, where black means Eum deficiency, and white means Yang deficiency. It is said that the distinctive feature of traditional Korean medicine is that it is a constitutional medicine. In this perspective, further study on 'Hyung-Ki' is of value. If "Donguibogam" was the foundation of the Sasang Constitutional Medicine(四象醫學), study on 'Hyung-Ki' means searching for the origin of the Sasang Constitutional Medicine. Also, the study on Sasang Constitutional Medicine and Hyungsang medicine(形象醫學) will show the modern image of "Donguibogam". Hence, interchange study between "Donguibogam", Sasang Constitutional Medicine and Hyungsang medicine through the term 'Hyung-Ki' could hopefully lead to academic progression.

Ki67 Frequency in Breast Cancers without Axillary Lymph Node Involvement and its Relation with Disease-free Survival

  • Shandiz, Fatemeh Homaei;Shabahang, Hossein;Afzaljavan, Fahimeh;Sharifi, Nourieh;Tavasoli, Alireza;Afzalaghaee, Monavar;Roshanzamir, Emane;Pasdar, Alireza
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권3호
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    • pp.1347-1350
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    • 2016
  • Background: Breast cancer prognosis is influenced by several histopathology and clinical factors including expression of Ki67 which may have a predictive role in lymph node negative breast cancer patients. The aim of this study was to assess Ki67 expression in breast cancers without axillary lymph node involvement and to evaluate its prognostic value with regard to disease-free survival. Materials and Methods: Subjects were selected from non-metastatic invasive breast cancer patients who were referred to the oncology department of Ghaem hospital during 1 April 2001 to 1 April 2008. Ki67 levels were measured using immunohistochemistry (IHC) and compared with clinicopathological features. The relation of Ki67 expression with disease-free survival was also analysed. Results: A total of 106 women with a mean age of 49 were examined. Some 94.3% were classified as having invasive ductal carcinomas and the mean tumour diameter at the time of diagnosis was 2.8 cm. Some 50.9% of cases were ER positive and 47.2% were PR positive. P53 expression was positive in 48.1% of the cases. According to the IHC results, only 8.5% of the patients were Her2/neu positive. Ki67 was positive in 66 (62.3%) with a significant relation to lower age (p=0.0229) and P53 positivity (p=0.005). After an average of 40-months follow up, 13 (12.3%) demonstrated recurrence, most commonly systemic. Of 13 cases with relapse, 10 patients (77%) were Ki67 positive. Conclusions: In our population Ki67 appeared to be an independent prognostic factor for three-year survival. However, we stress that a survival study with a bigger sample size would help to support this conclusion.

말초신경병증으로 추정되는 비증(痺證) 치험 1례 (A Case of Treating the Paresthesia Suggested from Peripheral Neuropathy)

  • 최창원
    • 대한한방내과학회지
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    • 제30권3호
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    • pp.648-655
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    • 2009
  • Peripheral neuropathy is a disease of multiple Peripheral nerves. Tingling, pins-and needles, numbness, burning and raw sensation are symptoms of peripheral neuropathy. These symptoms are frequently complained by patients who suffered from obstructive syndrome of Ki and blood (痺證). This case was reported to evaluate the effects of oriental medicine therapy on a patient with obstructive syndrome of Ki and blood (痺證). The subject was a female patient who had obstructive syndrome of Ki and blood (痺證). She complained of calf pain, cold sense, walking discomfort, insomnia, dyspepsia, anorexia etc. We administered the medicine with dispeling the cold pathogenic factor (寒邪), adjusting the constructive and defensive energy (調營衛), tonifying the Ki and blood (補氣血) by stage. After the treatment, the symptoms improved. This case suggests that oriental medicine therapy can be applicable to improve in symptoms with Peripheral neuropathy.

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DETERMINATION OF TROPHIC STATE AND TESTING OF PHOSPHORUS MODEL IN THE KI HEUNG RESERVOIR

  • Lee, Do-Hun;Oh, Jong-Min
    • Water Engineering Research
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    • 제1권3호
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    • pp.199-208
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    • 2000
  • The relationship between areal total phosphorus(TP) and areal hydraulic loading was identified and used as defining the trophic state of the reservoir. And three simple, conceptual TP models were tested against the measured in-reservoir TP concentration. The analyses were based on water quality data measured in the Ki Heung reservoir for two years. The results showed that Ki Heung reservoir has undergone eutrophic state, and Dillon's and Vollenweider's TP models were in close agreement with the measured annual mean TP concentration. However, the OECD's model understimated the measured annual mean TP concentration in the Ki Heung reservor. A discussion is given for the hypothetical application of TP loading plot which might be useful for establishing the TP control program in the resavoirs/lakes.

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촉매를 이용한 이산화탄소 고정화 및 고리형 카보네이트 합성반응에 대한 계산화학적 해석 (Computational Chemistry Study of CO2 Fixation and Cyclic Carbonate Synthesis Using Various Catalysts)

  • 안혜영;김민경;정희철;엄기헌;원용선
    • 청정기술
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    • 제22권1호
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    • pp.35-44
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    • 2016
  • 본 연구에서는 이론화학 또는 분자모델링이라 불리는 계산화학을 기존에 연구된 촉매반응 실험결과를 해석하는 데 접목시켜 보았다. 온실효과의 주범인 이산화탄소를 에폭사이드와 반응을 통해 고정화하고 카보네이트를 생성하는 반응을 선택하였는데 이 반응은 활성화 에너지(55~59 kcal/mol)가 높아 촉매의 사용이 불가피하다. 많은 기존 연구들 중에 ZIF-90/ionic liquid immobilized ZIF-90 (IL-ZIF-90), polystyrene-supported quaternized ammonium salt, KI/KI-glycine, dimethylethanolamine (DMEA)를 촉매로 사용한 경우에 대해 반응의 각 단계를 계산하여 반응의 경로를 예측하고 단계별로 구한 에너지를 바탕으로 에너지도를 구성함으로써 실험결과를 열역학적으로 해석하였다. ZIF-90/IL-ZIF-90과 KI/KI-glycine의 경우는 실험적으로 후자들이 상대적으로 높은 수율을 얻었는데 계산 결과 활성화에너지가 낮아진 이유가 아니라 전자들의 경우 반응 중간체가 높은 에너지를 가져 반응물로 되돌아가는 역반응에 의해 정반응의 진행이 방해를 받은 것으로 밝혀졌다. DMEA를 촉매로 사용하였을 경우는 활성화 에너지를 ~42 kcal/mol로 낮춰줌으로써 금속이나 할로겐염 없이도 촉매의 활성이 잘 일어남을 증명하였다. 폴리스티렌(polystyrene)으로 지지된 quaternized 암모늄염 촉매의 경우 클러스터 가정을 사용하여 계산을 진행하였으며 암모늄염의 -NH기와 에폭사이드의 O 원자 사이의 상호작용의 가능성을 확인할 수 있는 반응경로를 제시하였다.

조선기생 및 평양기생학교에 관한 전통문화의 디지털콘텐츠 창작소재에 관한 연구 (Study on Creative Materials of Digital Contents Using Traditional Culture of Art School of PyongYang Ki-Saeng and Ki-Saeng of Chosun Age)

  • 주정규
    • 한국게임학회 논문지
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    • 제5권1호
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    • pp.45-52
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    • 2005
  • 조선시대의 기생의 기원과 제도, 기생의 역할, 평양기생학교를 통한 기생의 원래의 의미인 전통적인 조선시대의 아티스트(Artist)임을 재조명하고, 기생학교의 제도와 규칙, 교육과정, 수업시간표, 졸업 앨범, 각종 사진첩을 통해서 조선시대의 기생의 역할과 평양기생학교 등의 재조명 및 분석을 통하여 전통적인 문화를 디지털콘텐츠의 창작소재로 발굴하므로 이를 디지털콘텐츠인 게임콘텐츠, 디지털애니메이션, 드라마, 영화화 할 수 있도록 소재화 하는 것이 본 논문의 목적이다. 특히, 조선의 기생의 아름다움과 아트적인 재능, 사회제도 및 기생학교 등을 발굴하여 원화기획(컨셉 디자인) 및 디지털시나리오 화하므로 경제성이 강한 문화콘텐츠로 발전시키며, 평양기생학교의 교육시스템, 교육내용, 학생 현황 등을 발굴하여 육성 및 경영시뮬레이션 게임의 제작 컨셉 도출 및 게임제작, 애니메이션 및 TV드라마, 디지털 애니메이션 및 영화 제작의 문화콘텐츠의 창작소재로 활용할 수 있도록 제안한다.

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음곡(KI10) 금앵자 약침이 난소적출 생쥐의 골다공증에 미치는 영향 (Effects of Herbal-Acupuncture with Rosae Laevigatae Fructus Extract at KI10(Umgok) on Osteoporosis in Ovariectomized Mice)

  • 김동수;김정호;김영일
    • 대한약침학회지
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    • 제12권4호
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    • pp.51-62
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    • 2009
  • Objective & Methods : The purpose of this study was to observe the effects of herbal-acupuncture with Rosae Laevigatae Fructus extact(RLF-HA) at KI10(Umgok) on osteoporosis in ovariectomized( OVX) ddy mice. We carried out several experimental items to analyze the changes in body weight, uterine weight, uterus index, tibial length, the ash bone weight, tibial BMD, serum ALP, serum osteocalcin, serum Ca, and the levels of Ca, P, Ca/P ratio in tibia, and we performed histological and histomorphological analysis as well. Results : 1. Herbal-acupuncture with Rosae Laevigatae Fructus at KI10(Umgok) and saline injection at KI10(Umgok) significantly inhibited the reduction of tibial calcium level in ovariectomized mice. 2. Herbal-acupuncture with Rosae Laevigatae Fructus at KI10(Umgok) significantly inhibited the increase of tibial osteoclast cells in ovariectomized mice. 3. Herbal-acupuncture with Rosae Laevigatae Fructus at KI10(Umgok) significantly inhibited the reduction of tibial trabecular bone thickness(TBT) in ovariectomized mice. 4. Herbal-acupuncture with Rosae Laevigatae Fructus at KI10(Umgok) significantly inhibited the overgrowth of tibial growth plate length(GPL) in ovariectomized mice. Conclusion : These results suggested that herbal-acupuncture with Rosae Laevigatae Fructus at KI10(Umgok) has a therapeutic effect on osteoporosis, and to be put to practical use in the future osteoporosis clinic.