• 한국임상수의학회지
• /
• 제28권3호
• /
• pp.303-306
• /
• 2011

프로게스테론 제제를 복용해 오던 12세령의 암컷 잡종 견이 복부 종괴의 평가를 위해 내원하였다. 복부 초음파 검사와 방사선 검사를 통해 확장된 자궁과 관련된 종괴를 확인하였다. 혈청 화학 검사에서는 고글로불린혈증이 나타났으며, 전기영동 검사상 급성 염증 패턴으로 판단되었다. 초음파 유도하에 종괴의 세침흡인을 실시하였으며 세포학검사를 통해 선암종이 진단되었다. 탐색적 개복을 실시하였으며 장구체의 종괴를 발견하여 자궁과 함께 종괴를 제거하는 수술을 실시하였다. 조직병리 검사결과 자궁 선암종이 진단되었으며 종양세포의 에스트로겐 수용체와 프로게스테론 수용체 발현 여부 평가를 위해 면역 염색을 실시하였다. 면역염색결과 종양세포는 두 항체에 대해 음성 결과를 보였으며, 정상 간엽세포에서만 양성 결과가 나타났다. 수술 후 1주일에 재검을 위해 내원하였는데 컴퓨터 단층촬영 검사결과 폐 전이가 확인되었다. 환자는 수술 후 40일경에 폐사하였다.

• 한국임상수의학회지
• /
• 제26권3호
• /
• pp.259-262
• /
• 2009

Focal adnexal dysplasia(FAD) is a rare non-neoplastic lesion of adnexal appendages that occurs in dogs and has good prognosis. We report a case in which FAD diagnosis was favored by its histopathological features. A 8-year-old, castrated male American cocker spaniel dog presented with papillomatous masses on the distal phalanx of left forelimb. Histopathologically, the stroma was sharply demarcated from the adjacent dermis and subcutis. The adnexa was surrounded and interspersed with abundant, hyalinized collagen and the numerous sebaceous lobules distributed haphazardly around hair follicles, which is thickened, dilated and tortuous with abundant keratin. Epidermis was acanthotic. Proliferative lesions of the skin region are very common with similar gross features, thus the basic histopathological examination supported by additional diagnostic methods allow to establish the definitive diagnosis in most cases of cutaneous tumor or tumor-like lesions. And it is important that physicians and pathologists are aware of this unusual tumour-like nonneoplastic lesion.

• 한국동물위생학회지
• /
• 제34권4호
• /
• pp.403-407
• /
• 2011

This study describes a canine lymphosarcoma with a rapid proliferation and recurrence. A 4-year-old, male, Shih Tzu dog was examined for acute swelling mass. The mass had been identified since 3 months ago and enlarged $10{\times}7$ cm and located in the right axillary region. The surgical removal was recommended when patient visited veterinarian and the operation was conducted. The removed tumor was $11{\times}8{\times}7$ cm and firm, lobulated and white cut surface. Routine screening laboratory test was assessed with blood and radiological analysis. The metastasis sign was not detected on thoracic and abdominal radiography. Blood test revealed decreased lymphocytes. After surgical removal of the mass, microscopic histopathological examination was performed to determine the final diagnosis. Histopathologically, the tumors are characterized by the same histological features, including the presence of neoplastic cellular populations, and lymphocytes infiltration in varying proportions. Also, DNA was extracted and PCR analysis was employed to analyze the origin of tumor cells. T-cell specific nucleic acid fragments were specifically amplified by PCR. On the basis of the laboratory results, the tumor was diagnosed with canine T-cell lymphosarcoma. On the basis of our knowledge, this is the first report of canine T-cell lymphosarcoma in a Shih Tzu dog.

• 한국환경성돌연변이발암원학회지
• /
• 제20권1호
• /
• pp.14-20
• /
• 2000

DHAQ-97, (2-(3-[p-bis(2-chloroethyl)aminophenyl]-2 formylaminopropanoyloxy) methy1-1,4-dihy-droxy-9,10-anthraquinone), is a novel anthraquinone derivative synthesized for use as an anti-neoplastic agent. In the present study, we have evaluated the selective cytotoxicity of DHAQ-97 by comparing its effects on viability and proliferation of human breast cancer cell line (NCF-7) versus normal immortalized breast epithelial cell line (MCF-10A). Thus, DHAQ-97 reduced both viability and proliferation of MCF-7 cells to a much greater extent than did for MCF-10A cells. The growth inhibitory and anti-proliferative properties of DHAQ-97 appear to be attributable to its ability to induce apoptosis as revealed by positive staining after in 냐셔 nick-end labeling (TUNEL), cleavage of poly(ADP-ribose)polymerase, release of mitochondrial cytochrome c into cytoplasm, and increased expression of pro-apoptotic Bax protein. Recent studies have indicated possible involvement of the ubiquitous eukaryotic transcription factor, NF-kappa B (NF-kB) in the regulation of apoptotic cell death. In line induced cytotoxicity in cultured MCF-7 cells. Furthermore, mild activation of NF-kB, as determined by its increased DNA binding capability, was observed 30 min after treatment with 10$\mu\textrm{m}$ DHAQ-97. Taken together, the above findings suggest that DHAQ-97 exerts selective cytotoxicity towards cancer cells through induction of apoptosis, which appears to be regulated by NF-kB.

• 대한두개안면성형외과학회지
• /
• 제18권3호
• /
• pp.218-221
• /
• 2017

A solitary fibrous tumor is a relatively uncommon neoplasm that usually occurs in the pleura but occurs extremely rarely in the oral cavity. Reported herein is a rare case of a solitary fibrous tumor in the buccal cheek mucosa. A 50-year-old man visited the authors' hospital due to a buccal cheek mass whose size had increased. Excisional biopsy was done under local anesthesia. After the excisional biopsy, the patient was diagnosed to have a solitary fibrous tumor. In immunohistochemistry, the patient's solitary fibrous tumor was characterized by the expression of CD34 and CD99 on the neoplastic cells, and negativity for Bcl-2 and S-100. No recurrence or complication occurred for a period of 5 years. The growth of a primary solitary fibrous tumor in the buccal cheek mucosa is extremely rare and has been rarely reported in the South Korean medical literature. A solitary fibrous tumor must be distinguished from other spindle cell tumors. Presented herein is a case of primary solitary fibrous tumor in the buccal cheek mucosa. The relevant literature is briefly reviewed.

• Tuberculosis and Respiratory Diseases
• /
• 제45권6호
• /
• pp.1284-1289
• /
• 1998

저자들은 59세 여자환자에서 조직학적으로 면역학적으로 이상성 활막육종의 형태를 가진 원발성 폐육종 1예를 경험하였기에 이를 문헌 고찰과 함께 보고하는 바이다.

• Tuberculosis and Respiratory Diseases
• /
• 제62권2호
• /
• pp.125-128
• /
• 2007

Docetaxel은 비소세포암에서 널리 사용되는 taxoid 계열의 항암제로, 조갑변화의 부작용은 한국에서 드물게 알려져 있다. 저자들은 비소세포암 4기인 62세 남환이 5차례 docetaxel 및 carboplatin 항암치료시행 7일 후 발생한 조갑하 농양 및 조갑 박리의 진단과 치료 1예를 경험하여 문헌 고찰과 함께 보고하는 바이다.

• 한국의학물리학회지:의학물리
• /
• 제7권1호
• /
• pp.37-52
• /
• 1996

뇌종양, 뇌졸중, 정신분열증과 개뇌에 대하여 영상으로 정위선정하고 수분억제 방식을 이용한 양성자 자기공명분광법을 시행하였다. STEAM 펄스 시퀀스를 채택하여 GE Signa 1.5 T 전신 MRI/MRS system 을 사용하였다. 크레아틴 (creatine)을 중심으로 양성자 대사물질의 비율을 Marquart 알고리즘을 이용하여 구하였다. 뇌이상조직의 생체내 양성자 자기공명 스펙트럼은 N-acetylaspartate (NAA), choline (Cho), lactate (Lac)의 신호 강도가 현격히 차이를 보였다. 본 연구의 결과는 양성자 자기공명분광에 의해 얻어진 대사물질의 비율은 뇌종양, 뇌졸중, 정신분열증 등의 지표로 사용할 수 있으며, 또 뇌사 판정 기준에 유용한 대사 정보를 제공할 수 있음을 시사해 주고 있다.

• 한국동물학회지
• /
• 제32권1호
• /
• pp.48-54
• /
• 1989

인체의 자궁암과 간암조직들이 나타내는 몇 종류의 단백질 분해효소들과 Anti-trypsin의 활성도를 정상조직의 것들과 비교하여서, 암의 종양성 형질과 단백질 분해활성의 변화사이에 어떤 상관관계가 있는지를 조사하였다. Casein과 Insulin의 분해 활성도는, 자궁암에서 2-3배 정도 증가하는 반면, 간암에서는 1/2에서 1/5정도로 감소하였다. 이와는 대조적으로, Anti-trypsin의 활성도는 자궁암에서 약 1/10정도로 감소하였고 간암에서는 2배 가량 증가하였다. 한편, Plamin-like enzyme과 Plasminogen activator의 활성도는 자궁암과 간암조직 모두에서 정상 조직에서보다 10-20% 정도 높게 나타났다. 이러한 결과는, 정상조직 내의 단백질 분해활성도가 단백질 분해효소들과 이들의 활성을 저해하는 단백질들의 균형에 의하여 조절됨을 시사하며, 암조직들에서는 각 암조직들의 종양특이성에 따라 단백질 분해효소와 저해단백질들 사이의 균형이 깨어짐에 따라 단백질 분해활성도가 다르게 나타남을 보여준다.

• 한국자원식물학회:학술대회논문집
• /
• 한국자원식물학회 2000년도 제7차 국제 심포지움(생약자원개발에 관한연구) 및 추계정기 학술발표회 초록집
• /
• pp.11-13
• /
• 2000

Cancer is a general term subjected to a series of malignant tumor diseases which may affect many different parts of the human body. These cancer diseases are characterized by a rapid and uncontrolled formation of abnormal cells in the body. Cancer chemotherapeutic agents can often provide the prolongation of life and occasionally cures. To date many kinds of compounds have been obtained from plants kingdom as anti-neoplastic and anti-cancerous agents. However, there is no special type of compounds for cancer therapy. In our laboratory, anti-tumor and cytotoxic screenings on higher plants collected in Japan, China, Korea, Southeast Asia and South America have been done by using Sarcoma 180 ascites in mice, P388 lymphocytic leukemia in mice, Chinese hamster lung V-79 cells, P388 cells and nasopharynx carcinoma (KB) cells. The family, Simaroubaceae consists of about 20 genera and 120 species, mainly shrubs and trees, distributed in tropical and subtropical country. Simaroubaceae IS classified as RUTALES, together with Rutaceae, Burseraceae, Meliaceae, Malpighiaceae and Polygalaceae. The members differ from the Rutaceae in not containing oil glands. Bitter principles are a characteristic of the family, Simaroubaceae. The genera include Quassia (Simarouba) (40 spp.), Picrasma (Aeschrion) (6 spp.), Brucea (10 spp.), Soulamea (10 spp.), Ailanthus (10 spp.) and Perriera (1 spp.) etc.. Surinam quassia derived from Quassia amara growing in Guianas, north Brazil and Venezuela is used in traditional medicines for stomachic, anti-amoebic, anti-malarial and anti-anaemic properties. Also, various parts of a number of plants of the family Simaroubaceae have been used in traditional medicine for the treatment of a variety of diseases including cancer, amoebic, dysentery and malaria. Then, the research has established that it is the quassinoid content of these plants that is responsible for above activities. In this meeting, I will present on anti-tumor and anti-malarial activities and their active principles of Simaroubaceae plants, Eurycoma longifolia, Ailanthus vilmoriniana, Simaba cedron and Brucea mollis which have been studied in our laboratory.