• Title/Summary/Keyword: Neoplastic Cell

검색결과 259건 처리시간 0.035초

Prednisolone 투여로 효과적으로 치료된 소아의 전신형 Castleman병 1례 (A Case of Systemic Castleman's Disease in a Child and Successful Treatment with Oral Prednisolone)

  • 구소은;이미정;김정은;허주령;김태형
    • Clinical and Experimental Pediatrics
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    • 제48권4호
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    • pp.443-447
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    • 2005
  • 저자들은 지속되는 발열, 빈혈, 혈소판 감소증, 흉수, 복수 및 간비종대 등의 비특이적인 전신증상을 주소로 내원한 13세 남아를 경부 림프절 조직 검사에서 혼합형의 Castleman병으로 진단한 후 스테로이드와 면역글로불린을 투여하여 호전된 1례를 경험하였기에 문헌고찰과 함께 보고하는 바이다.

Screening for Korean Vegetables with Anticarcinogenic Enzyme Inducing Activity Using Cell Culture System

  • Kim, Su-Mi;Ryu, Seung-Hee;Park, Hui-Don;Kim, Sung-Su;Kim, Jeong-Hwan;Kim, Jong-Sang
    • Preventive Nutrition and Food Science
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    • 제3권3호
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    • pp.277-281
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    • 1998
  • There is extensive evidence suggesting the protective role of fruits and vegetables against chemically induced carcinogenesis. We have tested the ability of a representative range of Korean vegetables to act as blocking agents against neoplastic initiation by determining the induction level of quinone reductase , an anticarcinogenci marker enzyme, in hepalclc 7 cells exposed to vegetable extracts. Among thirty vegetables tested, Arcitum lappa(Burdock), Brassica juncea (Mustard leaf), Pteridium aguilinum (Bracken) and Chrysanthemum cornoratium(Crown daisy) caused a significant induction of quinone teductase activity with a limited increase in arylhdrocarbon hydroxylase activity. Combination of crown daisy with burdock had synergistic effect on quinone reductase induction. Quinone reductase-inducing activity was found mostly in hesane and ehtylactate fractions of MeOH extract of crown daisy while it ws not quinone reductase activity in liver, kideny, lung, and small intestine, confirming the presence of potent QR inducer (s) in crown daisy. These sata suggest that some vegetables including crown daisy induced QR merits further investigation as a potential cancer preventive agent in human.

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뇌출혈을 동반한 만성골수성백혈병 환자 1례에 대한 임상적 고찰 (A Case of Chronic Myeloblastic Leukemia with Intracerebral Hemorrhage)

  • 이영수;최창원;이강녕;김희철;곽정진
    • 대한한방내과학회지
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    • 제23권2호
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    • pp.260-267
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    • 2002
  • Chronic Myeloblastic Leukemia(CML) is characterised by excessive production of neoplastic myeloid cell, reciprocal translocation between chromosome 9 and 22 called 'Philadelphia chromosome'. This one case of CML with Intracerebral Hemorrhage(ICH) patient is thought of Kidney-Yin and Yang deficiency, by the first clinical symptoms, at admission. So the nourishing Yin and Tonifying kidney, warming and tonifying kidney-yang is used. After the incresing of WBC count, the nourishing Yin and Tonifying kidney, invigorating-Yin and reducing fire is used for treatment of the essence-of-life and blood deficiency, fever due to Yin deficiency.

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실험동물에서 apoptosis의 모델개발과 생체면역반응 및 형태학적 특징 II. Apoptosis 및 hepatic tumorigenesis 과정에서의 혈청 간 효소활성치 및 조직소견 (Development of Apoptosis Model and Bioimmune Responses and Morphological Characterization in Experimental Animal II. Activities of Serum Hepatic Enzyme and Histological Findings between Apoptosis and Hepatic Tumorigenesis)

  • 강정부;하우송;곽수동;김지경
    • 한국임상수의학회지
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    • 제16권1호
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    • pp.108-117
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    • 1999
  • Hepatic tumorigenesis was induced by ad libitum feeding of diethylnitrosamine (DEN) only. We could also observe hepatic tumor induction in 100% of DEN treated rats without any other cocarcinogen. The liver specific enzyme activities (AST, ALT, ALP, ${\gamma}$-GTP) were significantly increased (P<0.05) in all treated groups compared to control and induced apoptosis groups. In histopathological analysis, the altered foci, hyperplastic nodules, neoplastic nodules, adenomas and carcinomas were observed in liver tumors induced by administration of DEN in rats. Lipopolysaccharide-induced apoptosis in D-galactosamine sensitized mice was investigated in hepatocytes in vivo. Typical morphological changes of apoptosis were detectable in liver 12 hr and 24 hr after the injection of Lipopolysaccharide (5 $\mu\textrm{g}$) and D-galactosamine (20 mg) to mice. It was suggested that organ specific enzyme activities and morphological findings might be very useful for understanding the role of hepatic tumorigenesis including the apoptotic cell death.

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개에서 흉선종의 영상의학적 진단례 (Medical Imaging of Thymoma in a Dog)

  • 최호정;이영원;김재훈;신창호;박기태;연성찬;이효종;이희천
    • 한국임상수의학회지
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    • 제28권4호
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    • pp.460-465
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    • 2011
  • A 15-year-old, castrated male shih-tzu dog was referred to Veterinary Medical Teaching Hospital of Gyeongsang National University due to dyspnea, anorexia, depression of 1 week's duration. On thoracic radiography, triangular shaped soft tissue opacity mass presented in the left cranial lung lobe region. On computed tomography, there was a $3.8{\times}2.5$ cm mass in the left thoracic cavity, which was lobulated and adhered to ventral pleural surface. Histopathologically, the neoplastic cell population consisted of a lot of lymphocytes and a few of Hassal's corpuscles. The immunohistochemistry, lymphocytes were diffusely positive for CD3 and focal positive $CD79{\alpha}$. Based on gross, histologic, and immunohistochemical findings, the neoplasm was diagnosed a lymphocyte predominant thymoma.

Dietary Phytochemical을 이용한 화학적 암에방과 그 작용 기전 (Cancer Chemoprevention by Dietary Phytochemicals: Rationale and Mechanisms)

  • 서영준;이종민
    • 한국환경성돌연변이발암원학회지
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    • 제18권1호
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    • pp.1-8
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    • 1998
  • Chemoprevention refers to the use of non-toxic chemical agents to prevent the neoplastic development by inhibiting, delaying, or reversing a multi-stage carcinogenesis. The primary goal of chemoprevention research is to identify or produce effective agents and strategies for clinical trials for applications to normal or high risk human populations. A large number of compounds have been tested for their possible chemopreventive activities, and it is of interest to note that many of them are naturally occurring substances. Thus, a variety of plant and vegetable constituents, particularly those included in our daily diet, have been found to possess substantial protective properties against experimental carcinogenesis. These substances, collectively known as dietary phytochemicals, exert their chemopreventive effects by influencing specific step(s) of multi-stage carcinogenesis: some inhibit metabolic activation or enhance detoxification of carcinogens, others interfere with covalent interactions between ultimate eloctrophilic carcinogens and the target cell DNA and still others may exert anti-promoting or anti-progressing effects. Mechanism-based interventions by use of safe dietary phytochemicals may provide one of the most practical and promising cancer chemopreventive strategies.

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갑상선 종양세포 식별을 위한 염색질 텍스춰의 디지탈 화상해석에 관한 연구 (A Study of Digital Image Analysis of Chromatin Texture for Discrimination of Thyroid Neoplastic Cells)

  • 정상우;이재혁;범은경;김창원
    • 대한세포병리학회지
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    • 제7권1호
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    • pp.23-30
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    • 1996
  • Chromatin texture, which partly reflects nuclear organization, is evolving as an important parameter indicating cell activation or transformation. In this study, chromatin pattern was evaluated by image analysis of the electron micrographs of follicular and papillary carcinoma cells of the thyroid gland and tested for discrimination of the two neoplasms. Digital grey images were converted from the electron micrographs, nuclear images, excluding nucleolus and intranuclear cytoplasmic inclusions, were obtained by segmentation; grey levels were standardized; and grey level histograms were generated. The histograms in follicular carcinoma showed Gaussian or near-Gaussian distribution and had a single peak, whereas those in papillary carcinoma had two peaks(bimodal), one at the black zone and the other at the white zone. In papillary carcinoma, the peak in the black zone represented an increased amount of heterochromatin particles and that at the white zone represented decreased electron density of euchromatin or nuclear matrix. These results indicate that the nuclei of follicular and papillary carcinoma cells differ in their chromatin pattern and the difference may be due to decondensed chromatin and/or matrix substances.

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Inflammatory Pseudotumor in the Lateral Ventricle with Repeated Bleeding-Case Report-

  • Park, Jong-Hwa;Nam, Taek-Kyun;Hwang, Sung-Nam;Park, Seung-Won
    • Journal of Korean Neurosurgical Society
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    • 제45권2호
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    • pp.99-102
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    • 2009
  • Inflammatory pseudotumor is an uncommon lesion with unknown etiology characterized by sclerosing inflammation which clinically and radiographically mimics a neoplastic lesion. A 47-year-old man presented with sudden headache and dysarthria. Brain CT scan revealed a $2.6{\times}2.2\;cm$ sized, round, and hyperdense mass in the anterolateral wall of the left lateral ventricular trigone. On MR imaging studies, the mass showed low signal intensity in the wall of the trigone on T2-weighted image, central mixed (iso- and high-) signal intensity with peripheral low-signal intensity on T1-weighted image. Subtle staining of left choroid plexus with irregular shaped distal branch of anterior choroidal artery was found on the cerebral angiography. These findings suggested a small tumorous lesion originated from the left choroid plexus. During the hospital days, the mass manifested as repeated hemorrhages. The mass was successfully removed via left occipital transcortical approach. The histopathological report of the specimen was hemorrhage and fibrosis, with dense lymphoplasma cell infiltration, suggestive of an inflammatory pseudotumor.

하악골에 발생한 점액성 유상피암종의 치험1례 (MUCOEPIDERMOID CARCINOMA IN THE MANDIBLE : REVIEW OF A CASE)

  • 배종고;김명래;강나라;김재화
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제28권2호
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    • pp.166-171
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    • 2006
  • Mucoepidermoid carcinoma is a common salivary gland tumor. It comprised 8% of all salivary gland tumor and originated mainly in parotid gland. Central mucoepidermoid carcinoma is rare. It comprised $2{\sim}3%$ of all mucoepidermoid carcinoma, but it occurs in the mandible two or three times more frequently than in the maxilla. Central Mucoepidermoid carcinoma are frequently associated with an odontogenic cyst, such as dentigerous cyst, in which mucous goblet cell would have neoplastic transformation. In May 2002, a 25 year-old male visits in our clinic, presented with a progressive facial swelling after surgical tooth extraction of left mandibular third molar at 1999 in the army. After incisional biopsy, the lesion was confirmed as mucoepidermoid carcinoma so we performed tumor resection and reconstruction surgery of mandible.