• 제목/요약/키워드: Medical informatics

검색결과 845건 처리시간 0.024초

COEX-Seq: Convert a Variety of Measurements of Gene Expression in RNA-Seq

  • Kim, Sang Cheol;Yu, Donghyeon;Cho, Seong Beom
    • Genomics & Informatics
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    • 제16권4호
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    • pp.36.1-36.3
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    • 2018
  • Next generation sequencing (NGS), a high-throughput DNA sequencing technology, is widely used for molecular biological studies. In NGS, RNA-sequencing (RNA-Seq), which is a short-read massively parallel sequencing, is a major quantitative transcriptome tool for different transcriptome studies. To utilize the RNA-Seq data, various quantification and analysis methods have been developed to solve specific research goals, including identification of differentially expressed genes and detection of novel transcripts. Because of the accumulation of RNA-Seq data in the public databases, there is a demand for integrative analysis. However, the available RNA-Seq data are stored in different formats such as read count, transcripts per million, and fragments per kilobase million. This hinders the integrative analysis of the RNA-Seq data. To solve this problem, we have developed a web-based application using Shiny, COEX-seq (Convert a Variety of Measurements of Gene Expression in RNA-Seq) that easily converts data in a variety of measurement formats of gene expression used in most bioinformatic tools for RNA-Seq. It provides a workflow that includes loading data set, selecting measurement formats of gene expression, and identifying gene names. COEX-seq is freely available for academic purposes and can be run on Windows, Mac OS, and Linux operating systems. Source code, sample data sets, and supplementary documentation are available as well.

의료 정보 검사코드 표준화를 위한 LOINC 자동 매핑 프레임웍 (An Automatic LOINC Mapping Framework for Standardization of Laboratory Codes in Medical Informatics)

  • 안후영;박영호
    • 한국멀티미디어학회논문지
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    • 제12권8호
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    • pp.1172-1181
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    • 2009
  • 전자의무기록(Electronic Medical Record, EMR)은 모든 검사 과정이 텍스트 기반의 데이터 형태로 저장되는 의료 분야의 의무기록 시스템을 의미한다. 그러나 국내의 전자의무기록 시스템은 각 의료기관마다 고유한 의료정보검사코드 형태를 이용하여 기록하는 방식으로 정보를 저장하기 때문에 병원 간의 의료검사 기록 형태들의 공유, 해석, 분석에 많은 문제점들을 가진다. 위의 문제들을 해결하기 위하여 표준화 되어 있지 않은 병원들의 검사코드들을 LOINC (Logical Observation Identifiers Names and Code)로 표준화하려는 연구들이 많다. 현재까지의 연구들은 로컬 의료정보검사코드를 수동으로 LOINC로 변환하는 방법이 연구되었다. 또한 대용량 의학 정보들을 다루기에 적절하지 않은 파일 기반에서 코드들을 관리하는 연구들이 이루어져왔다. 기존의 문제점을 해결하기 위하여 본 논문에서는 의료 용어 표준화 알고리즘을 제안하고, 구현하여 해결하였다. 또한, 대표적인 상용시스템이 가졌던 문제점인 검색어를 의사가 직접 생성해야 했던 부분을 LOINC 의 여섯 가지 자동 속성 추출 및 검색어 자동 생성 기능을 구현하여 해결하였다. 또한, 기존의 시스템들이 고려하지 않았던 대용량 데이터의 매핑 부분을 파일 시스템 기반이 아닌 데이터베이스 기반 검색 프레임웍을 구축하였다.

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명리학적 질병진단과 예측에 관한 방법연구 (A Study on the Diagnosis and Prognosis by the Arts of Divination)

  • 류시옥
    • 대한한의정보학회지
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    • 제14권2호
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    • pp.21-46
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    • 2008
  • Though modern medicine has taken rapid strides, varieties of intractable maladies and diseases go on increasing more and more. And so medical technologies and academic achievements related to diagnoses and prognoses are being carried on. As the progress of genetics, all sorts of diseases have proved to be hereditary. This makes efficient use of the prevention of diseases. According to Sasang-Constitution medicine, each person inherently possesses a unique constitution different from that of any other person. The shapes and sizes, temperaments and characters of people have enormous variations that must affect our health and happiness. Without understanding our particular constitution, we must fall into poor health and disease. The food and exercise that are good for one person's constitution may not be good for another. No standardized medicine can adequately deal with our individual variations. Only a system that can discern our different constitutional types has this capacity. This paper is to study Life-Regulating Science that has taken firm root in our culture from time immemorial, so that I suggest the methods of diagnoses and prognoses by using Life-Regulating Science. In the medical texts, psychological imbalances of Eum-Yang and Five Phases generate all kinds of diseases. Accordingly visceral manifestation and diseases as a future possibility may be known by the Four Pillars.

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An Iterative Normalization Algorithm for cDNA Microarray Medical Data Analysis

  • Kim, Yoonhee;Park, Woong-Yang;Kim, Ho
    • Genomics & Informatics
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    • 제2권2호
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    • pp.92-98
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    • 2004
  • A cDNA microarray experiment is one of the most useful high-throughput experiments in medical informatics for monitoring gene expression levels. Statistical analysis with a cDNA microarray medical data requires a normalization procedure to reduce the systematic errors that are impossible to control by the experimental conditions. Despite the variety of normalization methods, this. paper suggests a more general and synthetic normalization algorithm with a control gene set based on previous studies of normalization. Iterative normalization method was used to select and include a new control gene set among the whole genes iteratively at every step of the normalization calculation initiated with the housekeeping genes. The objective of this iterative normalization was to maintain the pattern of the original data and to keep the gene expression levels stable. Spatial plots, M&A (ratio and average values of the intensity) plots and box plots showed a convergence to zero of the mean across all genes graphically after applying our iterative normalization. The practicability of the algorithm was demonstrated by applying our method to the data for the human photo aging study.

급성기 요통의 치료에서 경판의 유용성 평가 (The Evaluation about Effects of the Hard Board on Treating Acute Low Back Pain)

  • 이동열;이수길;류헌식
    • 대한한의정보학회지
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    • 제11권2호
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    • pp.57-64
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    • 2005
  • Objectives The aim of this study is to evaluate effects of hard board applied to acute low back pain patient by using Visual Analogue Scale(VAS) and Pain Rating Score(PRS). Methods From March. 2005 to October. 2005, 20 cases of acute low back pain were divided into 2 groups in sequence. Control group took a rest on the bed(marble-sponge mattress) and sample group took a rest on the hard board. Visual Analogue Scale(VAS) and Pain Rating Score(PRS) were used to assess the change of pain. VAS and PRS were checked 3 times before the treatment, after 3day treatment and 6day treatment. Results 1. After 3day and 6day treatment, there was statistical significance between control and sample group by VAS. 2. After 3day and 6day treatment, there was statistical significance between control and sample group by PRS. Conclusions On treating acute low back pain, it is more effective taking a rest on the hard board than taking a rest on the bed. Further study is needed about effects of hard board applied to acute low back pain patient.

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한방산업(韓方産業)의 최적산업구조(最適産業構造) 연구(硏究) (A Study on the Optimal Industry Construction of Korean Medicine Industry)

  • 유병완;이석재;전병욱
    • 대한한의정보학회지
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    • 제13권1호
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    • pp.1-13
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    • 2007
  • Korean medicine industry general means all industry activities related to Korean medicine. It covers material resources such as herbs and products made herbs, medical instruments, Korean medical servics and related information service based on Korean medicine theories. Also according to industrial strategy, Korean medicine industry was to define and branch. The industrial strategy of Korean medicine industry was based on kowledge, high-end, intensive techology, and global denand. By the industrial strategy of Korean Medicine industry, a study on the optimal industry construction of Korean medicine industry was standardizaition in the basic research and promoted bouds, efficiency in the group industrial, detention of global fund and global technology, and intenational division of product process. It is the optimal industry construction of Korean medicine industry by the industrial strategy of Korean medicine industry. At once adjustment to the optimal industry construction of Korean medicine industry by the industrial strategy of Korean medicine industry was internationalization in the positive adjustment.

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"동의보감(東醫寶鑑)"의 이병(耳病) 처방(處方) 연구(硏究) (A Study on Prescription for Ear Diseases in Donguibogam)

  • 윤서현;조은희
    • 대한한의정보학회지
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    • 제18권1호
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    • pp.64-77
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    • 2012
  • Donguibogam, Korea's cultural heritage and traditional Oriental medicine book listed in the World Heritage three years ago, is indeed great in its importance and value. Korea's posterity has sought treatment methods through the medical book and their researches on that book have continued. However, it is rare to make the concrete analysis on the medicines for prescriptions recorded in the book. In this study, we reviewed "Ears" in the Section "Bodily Appearance" among the five chapters of Donguibogam, and analyzed the 55 types of prescriptions for ear diseases, the medical characteristics, tastes, prime classification of medical herbs, and acupunctural effects, and the dosage forms depending on prescriptions. For insect-entering ear diseases and 20 kinds of a single-medicine prescription also, the treatments are presented in the book, but we presented the texts only and excluded them in the analysis. We also excluded overlapping prescriptions and adding and reducing prescriptions of the 55 prescriptions, and thus classified the left 42 proscriptions by dosage form. As a result: 1. With respect to medical characteristics, the medicine with warm characteristics reached 9 types(40.9%), the highest rate, followed by the medicine with cold characteristics 8 types (36.4%). 2. Concerning medical tastes, the medicine with bitter taste included 12 types (54.5%), the medicine with sour taste 10 types (45.5%), and the medicine with sweet taste 7 types (31.8%). It was unusual that of the 22 medicines used for multipurpose, no medicine with the taste was found. 3. For the acupunctural effects, the medicine with acupuncture effects for spleen medirian reached 12 types in total (54.5%). On the contrary, the medicine with the effects for pericardium meridian reached only one (4.5%) among the total of 22 medicines. 4. In the dosage form of 42 prescriptions, powder medicine was 15 types (35.7%), and decoction medicine was 14 (33.3%). Powder, dedoction, and pill medicines accounted for 90.4% of the total medicine type. It was found that in particular, for ear diseases powder medicine was used more frequently than decoction medicine.

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