• 제목/요약/키워드: Pathogenesis classification

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의사결정나무법을 이이용한 병인(病因)분류에 관한 연구 (A Study of Pathogenesis Classification using Decision Tree Method)

  • 이혁재;김민용;오환섭;박영배
    • 대한한의진단학회지
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    • 제12권2호
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    • pp.27-40
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    • 2008
  • Background : In spite of the predominant of the theory of Pathogenesis, the method of Pathogenesis classification is depending on the doctor's clinical trials because od the lack of the objective test criteria. Methods and Results : This study is trying to improve the objectiveness of classification using a new statistical method, decision tree. Decision tree method -a classification technique in the statistical analysis- was used to analyze the result of pathogenesis questionnaire instead of using discriminant analysis. As a result, 10 among 38 pathogenesis questionnaire was selected as important questions and 12 terminal nodes was built to classify the pathogenesis. Conclusions : Using only 10 questions shown in the result of decision tree, we can classify and interpret the pathogenesis easily and effectively.

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Various Classification of Gastric Adenocarcinoma

  • Moon, Hee Seok;Jeong, Hyun Yong
    • Journal of Digestive Cancer Research
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    • 제7권1호
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    • pp.8-12
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    • 2019
  • Despite its declining incidence, gastric cancer is globally, still, the third most common cause of cancer-related mortality. Gastric cancer is a heterogeneous disease with diverse pathogenesis and molecular backgrounds. Therefore several systems have been proposed to aid in the classification of gastric adenocarcinoma based on the macroscopic, microscopic and anatomical features of the tumor. However, these classifications did not reflect the pathogenesis of the disease. Recently, genomic analysis has identified several subtypes of gastric adenocarcinoma and a detailed understanding of the molecular biology behind the neoplastic phenotype is possible to develop of more effective therapies. We will describe the existing various classification of gastric cancer and the recently introduced molecular biology and immunological classification.

복합간세포-담관암종 : 병리와 분류 (Combined Hepatocellular-Cholangiocarcinoma : Recent Progressin Pathology and Classification)

  • 최준혁
    • Journal of Yeungnam Medical Science
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    • 제28권1호
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    • pp.1-12
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    • 2011
  • Primary liver carcinomas have classified classified into hepatocellular carcinoma, cholangiocarcinoma, and combined hepatocellular-cholangiocarcinoma (CHC). CHC is a tumor containing unequivocal, intimately mixed elements of both hepatocellular carcinoma and cholangiocarcinoma. It forms a small but significant proportion of primary liver carcinomas. The origin and pathogenesis of CHC have not been well established. According to the 2010 WHO classification, CHCs are categorized into 2 groups: the classical type and a subtype with stem cell features. This review describes recent progress in pathology and classification of CHC.

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Updating Osteonecrosis of the Femoral Head

  • Young-Seung Ko;Joo Hyung Ha;Jung-Wee Park;Young-Kyun Lee;Tae-Young Kim;Kyung-Hoi Koo
    • Hip & pelvis
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    • 제35권3호
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    • pp.147-156
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    • 2023
  • Osteonecrosis of the femoral head (ONFH), a condition characterized by the presence of a necrotic bone lesion in the femoral head, is caused by a disruption in the blood supply. Its occurrence is more common in young and middle-aged adults and it is the main reason for performance of total hip arthroplasty in this age group. Its incidence is increasing along with increased use of glucocorticoids for management of adjuvant therapy for treatment of leukemia as well as organ transplantation and other myelogenous diseases. Current information on etiology and pathogenesis, as well as natural history, stage system, and treatments is provided in this review. A description of the Association Research Circulation Osseous (ARCO) criteria for classification of glucocorticoids-and alcohol-associated ONFH, 2019 ARCO staging system, and 2021 ARCO classification using computed tomography for the early stages of ONFH is also provided.

A study on the classification system of herbology

  • Jang, Woo-Chang;Jeong, Chang-Hyun;Baik, Yoo-Sang;Mohk, In-Seok;Kim, Me-Riong;Kim, Yun-Ji
    • Advances in Traditional Medicine
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    • 제7권5호
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    • pp.447-458
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    • 2008
  • This paper reviews the historic origin and traits of the classification system used in current Korean herbology textbooks. By reassessing its value, it proposes the most relevant path for future revisions and supplementations. Through an evaluation of the history of the modern style of classification in terms of its efficacy and statistic analysis of the distribution of individual herbs in each category, this paper shows how the classification systems of Korean herbology textbooks were influenced by contemporary Chinese herbology, particularly that of the Cheong [淸] Dynasty. An examination of the academic background, strengths and weaknesses of each classification system demonstrates the need for future research on classification systems to concentrate on resolving the following issues: how well the setting and composition of each classification system reflects reality, and how closely it is connected to related sciences such as etiology and pathogenesis, prescriptionology, and diagnosis.

Cardiomyopathies in small animals

  • Fujii, Yoko
    • 한국임상수의학회:학술대회논문집
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    • 한국임상수의학회 2009년도 춘계학술대회
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    • pp.127-133
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    • 2009
  • Cardiomyopathies were previously defined as "an idiopathic myocardial disease that is not secondary to any other type of congenital/acquired heart disease or systemic diseases." With increasing understanding of etiology and pathogenesis in human medicine, the difference between cardiomyopathy and specific heart muscle disease has become indistinct. Cardiomyopathies are now classified by the dominant pathophysiology or, if possible, by etiological/pathogenetic factors. The American Heart Association recently advocated the following new definition of cardiomyopathy: Cardiomyopathies are a heterogeneous group of diseases of the myocardium associated with mechanical and/or electrical dysfunction that usually (but not invariably) exhibit inappropriate ventricular hypertrophy or dilatation and are due to a variety of causes that frequently are genetic. Cardiomyopathies either are confined to the heart or are part of generalized systemic disorders, often leading to cardiovascular death or progressive heart failure-related disability. Because the understanding of etiology or pathogenesis of cardiomyopathy has been limited in veterinary medicine, the previous classification is generally used. It is considered a dilated, hypertrophic and restrictive group on the basis of the predominant morphological and functional abnormalities. In addition, arrhythmogenic right ventricular cardiomyopathy and unclassified cardiomyopathy were also recognized in dogs and/or cats.

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과색소침착질환에 대한 침구의학적 처치 및 분류체계에 대한 고찰 (Review of Acupuncture and Related Treatments and Classification of Hyperpigmentation Disorders in Traditional Medicine)

  • 강기완;김의별;김민지;장인수
    • Journal of Acupuncture Research
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    • 제33권1호
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    • pp.69-77
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    • 2016
  • Objectives : The objective of this study is to review external approaches using acupuncture and related treatments of hyperpigmentation disorders and their classification in traditional medicine. Methods and Results : Hyperpigmentation was recorded for the first time in Treatise on the Pathogenesis and Manifestations of All Diseases published in 610 A.D. This suggests that the symptom has already been recognized as an independent disease in East Asia for more than 1,400 years. Over the course of several centuries, there has been a significant evolution in the traditional treatments for hyperpigmentation. There are many different types of therapy, including body acupuncture, intradermal acupuncture, ear acupuncture, ear acupressure, blood-letting treatment, pharmacopuncture, plum-blossom needle therapy, burning acupuncture therapy, moxibustion, and guasha. In addition, the traditional classification of hyperpigmentation has been changing shape. However, no attempts have been made to establish the academic linkage between the modern classification of hyperpigmentation disorders and the traditional one, on account of different concepts and names of the ailment. This study was designed in an attempt to identify the linkage of the categorization of the Korean Standard Classification of Disease (KCD) and the traditional classification. Conclusions : Through this literature review, we found that there has been a significant evolution in the treatment of hyperpigmentation disorders in East Asia. Traditional medical treatment for skin disease, including hyperpigmentation, is expected to be further developed with the advancement of science and technology.

통계청 사망외인 통계항목군의 수정도출을 통한 최적의 안전측정 분류체계(안) 연구 (A Study on the Optimal Safety Measurement Classification System by Correcting and Deriving Statistical Items for External Causes of Death)

  • 박형주
    • 문화기술의 융합
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    • 제6권4호
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    • pp.535-543
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    • 2020
  • 통계청은 사망외인에 대한 안전통계 프레임워크를 구성하는 안전변수와 하위모듈의 설정미스로 인해 통계 항목군의 도출에 착오를 일으켰고, 재난·사고 분야·영역의 학술적 분류체계를 고려하지 않고 의학적 발생기전으로 명명함으로써 통계 타당성이 떨어지는 결과가 도래된 것으로 분석되었다. 따라서 본 연구에서는 안전변수를 WHO 안전정의에 맞게 변경하고 하위모듈을 적절하게 설정하여 낙상사고, 익사·익수사고 및 무생물성 기계적 힘에 노출사고 항목군을 산업현장에서의 사고와 일상생활에서의 작업 중 사고로 분리하여 명명하고, 유독성물질을 화학적 물질과 약물로 분리하여 항목군을 재명명하는 과정과 재난사고의 6대 분야 및 영역별로 항목군을 재배치하여 최적의 안전통계 항목군 분류체계를 정립하였다. 결과적으로 사망외인의 원천 특성에 따라 재난·사고 분야를 도출하고 관련 영역을 학술적으로 설정하여 복잡하게 구성되어 있는 통계청의 사망외인 항목군을 체계적으로 재정립함으로써 통계타당성을 향상시키고 정부부처 및 관련기관의 안전투자의 방향을 결정하는데 중요한 역할을 할 것으로 기대된다.

肛門病 中 痔의 範疇와 原因 症狀 및 治療에 對한 文獻的 考察 (A literatual studies on the chi-jil(痔疾).)

  • 이상욱;고우신
    • 한방안이비인후피부과학회지
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    • 제12권1호
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    • pp.313-337
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    • 1999
  • In oriental medicine, 'chi(痔)' is 'the prolapsed nodule' in 'Ku-gyu(九竅)', but in this paper, I will write about prolapsed nodule only in anus or around it, chi-jil(痔疾), it called hemorrhoid in western medicine. So in the literatual studies on chi(痔) in anus or around it, the results are as follows. 1. The etiology and pathogenesis of ch.i-jil(痔疾) is wind, wetness, dryness, and heat caused by inrregular diet habit, severe drinking and sexual action, deficiency of ki(氣) and hyeol(血). 2. Characteristic symptoms of chi-jil(痔疾) is the prolapsed nodule in the anus or around it, and general symptoms are hematochezia, pain, hernia, swelling, abcess, and mucosal secretion. 3. Chi-jil(痔疾) is classified eight types by characteristic symptom, shape, etiology and pathogenesis. They are mac-chi(脈痔), jang-chi(腸痔), ki-chi(氣痔), hyeol-chi(血痔), joo-chi(酒痔), mo-chi(牡痔), bin-chi(牡痔), and loo-chi(屢痔)(or young-chi(영痔), choong-chi(蟲痔)). Additionally, they are divided into two parts, internal and external chi-jil(痔疾), as likely as classification of internal and external hemorrhoid in western medicine. 4. Treatment of chi-jil(痔疾) is two methods, internal treatment and external treatment. Internal treatment is per os herb-pharmacotheraphy, external treatment is surgical or the other external pharmacotheraphy. There are several external treatment, these are fumigation-theraphy(熏痔法). irrigation-theraphy(洗痔法), paint-theraphy(塗痔法). withering-theraphy(枯痔法), bending-therphy(結紮法) and incisal -theraphy(切開法).

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지황 chitin 분해효소의 전기영동 양상 및 분류 (Electrophoretic pattern and classification of chitinolytic enzymes from Rehmannia glutinosa)

  • 판철호;이은아;조도현;김수일
    • Applied Biological Chemistry
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    • 제41권7호
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    • pp.505-509
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    • 1998
  • Pathogenesis-related proteins중 chitinase를 지황에서 추출하고 분류하였다. 지황 chitinase는 chitin affinity column chromatography로 염기성 및 산성 두개 군으로 분류되었으며 native PAGE gel상 효소활성을 조사한 결과 이동도가 작은 염기성 chitinase는 pH 2.9의 산성추출 조건에서, 이동도가 큰 산성은 pH 8.8의 염기성추출 조건에서 상대적으로 많이 추출되었다. 지황에는 염기성 3개, 산성 4개등 총 7개의 chitinase isoform이 존재하며 이들의 분자량은 $28{\sim}32\;kD$내외이고 지상부와 달리 뿌리에는 주로 염기성 chitinase만 검출되어 일부 산성효소는 조직 특이적으로 발현될 가능성을 보여주고 있다.

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