• Title/Summary/Keyword: GI disease

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Biochemical and molecular features of LRRK2 and its pathophysiological roles in Parkinson's disease

  • Seol, Won-Gi
    • BMB Reports
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    • v.43 no.4
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    • pp.233-244
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    • 2010
  • Parkinson's disease (PD) is the second most common neurodegenerative disease, and 5-10% of the PD cases are genetically inherited as familial PD (FPD). LRRK2 (leucine-rich repeat kinase 2) was first reported in 2004 as a gene corresponding to PARK8, an autosomal gene whose dominant mutations cause familial PD. LRRK2 contains both active kinase and GTPase domains as well as protein-protein interaction motifs such as LRR (leucine-rich repeat) and WD40. Most pathogenic LRRK2 mutations are located in either the GTPase or kinase domain, implying important roles for the enzymatic activities in PD pathogenic mechanisms. In comparison to other PD causative genes such as parkin and PINK1, LRRK2 exhibits two important features. One is that LRRK2's mutations (especially the G2019S mutation) were observed in sporadic as well as familial PD patients. Another is that, among the various PD-causing genes, pathological characteristics observed in patients carrying LRRK2 mutations are the most similar to patients with sporadic PD. Because of these two observations, LRRK2 has been intensively investigated for its pathogenic mechanism (s) and as a target gene for PD therapeutics. In this review, the general biochemical and molecular features of LRRK2, the recent results of LRRK2 studies and LRRK2's therapeutic potential as a PD target gene will be discussed.

Analysis of COPD Patient's Exhaled Breath Using Sensor Array (센서 어레이를 사용한 COPD 환자의 호기분석)

  • Yu, Joon-Boo;Lee, Shin-Yup;Jeon, Jin-Young;Byun, Hyung-Gi;Lim, Jeong-Ok
    • Journal of Sensor Science and Technology
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    • v.22 no.3
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    • pp.219-222
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    • 2013
  • The exhaled breath contains gases generated from human body. When disease occurs in the body, exhaled breath may include gas components released from disease metabolism. If we can find specific elements through analysis of the exhaled gases, this approach is an effective way to diagnose the disease. The lung function has a close relationship with exhalation. Exhaled gases from COPD (Chronic Obstructive Pulmonary Disease) patients can be analyzed by gas chromatography-mass spectroscopy (GC-MS) and a gas sensor system. The exhaled breath for healthy person and COPD patients had different components. Significantly more benzendicarboxylic acid was detected from COPD patients than in healthy persons. In addition, patients had a variety of decane. Phosphorous compounds with different isomers were detected from patients. The results obtained by gas sensor system were processed by PCA (Principal Component Analysis). The PCA results revealed distinct difference between the patients and healthy people.

Syndromic Surveillances based on the Emergency Department (응급실 증후군 감시체계의 운영 현황과 활성화 방안)

  • Cho, Joon-Pil;Min, Young-Gi;Choi, Sang-Cheon
    • Journal of Preventive Medicine and Public Health
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    • v.41 no.4
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    • pp.219-224
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    • 2008
  • Due to heightened concerns regarding possible bioterrorist attacks, the Korea Center for Disease Control and Prevention introduced syndromic surveillance systems, which have been run by emergency departments in hospitals throughout Korea since 2002. These systems are designed to identify illness clusters before diagnoses are confirmed and reported to public health agencies, to mobilize a rapid response, and thereby to reduce morbidity and mortality. The Korea Center for Disease Control and Prevention performed drop-in syndromic surveillance successfully during the World Cup Football Games in 2002, the Universiad games in 2004, and the Asian Pacific Economic Cooperation meeting in 2005. In addition, sustainable syndromic surveillance system involving the collaborative efforts of 125 sentinel hospitals has been in operation nationwide since 2002. Because active data collection can bias decisions a physician makes, there is a need to generate an automatic and passive data collection system. Therefore, the Korea Center for Disease Control and Prevention plans to establish computerized automatic data collection systems in the near future. These systems will be used not only fur the early detection of bioterrorism but also for more effective public health responses to disease.

Skeletal Muscle Dysfunction in Patients with Chronic Obstructive Pulmonary Disease (만성폐쇄성폐질환 환자에서 골격근 기능 이상)

  • Kim, Ho-Cheol;Lee, Gi-Dong;Hwang, Young-Sil
    • Tuberculosis and Respiratory Diseases
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    • v.68 no.3
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    • pp.125-139
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    • 2010
  • Patients with chronic obstructive pulmonary disease (COPD) frequently complain of dyspnea on exertion and reduced exercise capacity, which has been attributed to an increase in the work of breathing and in impaired of gas exchange. Although COPD primarily affects the pulmonary system, patients with COPD exhibit significant systemic manifestations of disease progression. These manifestations include weight loss, nutritional abnormalities, skeletal muscle dysfunction (SMD), cardiovascular problems, and psychosocial complications. It has been documented that SMD significantly contributes to a reduced exercise capacity in patients with COPD. Ventilatory and limb muscle in these patients show structural and functional alteration, which are influenced by several factors, including physical inactivity, hypoxia, smoking, aging, corticosteroid, malnutrition, systemic inflammation, oxidative stress, apoptosis, and ubiquitin-proteasome pathway activation. This article summarizes briefly the evidence and the clinical consequences of SMD in patients with COPD. In addition, it reviews contributing factors and therapeutic strategies.

Review on Argument about Three planks of the Triangular position(三網鼎立) (삼강정립(三網鼎立) 논쟁(論爭)에 대한 소고)

  • Jang, Woo-Chang
    • Journal of Korean Medical classics
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    • v.19 no.2 s.33
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    • pp.108-114
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    • 2006
  • Three planks of the Triangular position theory was first introduced by Sanghallon(傷寒論) authored by Jang Gi. It is the regulation for the matter of diagnosis of three different clinical symptoms in the causes of exogenous disease. It brought two questions to the scientists. First question is what are the Wind stroke(中風), Affection by cold(傷寒) and the complex form of Wind stroke(中風) and Affection by cold(傷寒) mentioned in Sanghallon. It is related to the theoretical analysis of the causes for the outbreaks of exogenous disease. Second question is what are the characteristics of symptoms to use Gyejitang, Mahwangtang, Daecheongnyongtang according to Sanghallon? It is the matter of clinical skills for dispensing a prescription. Through the theoretically and empirically deepening processes for last two millenniums, those two questions brought us two more problems further. That is, how and by what processes the Six vital substances for humal life outbreaks disease as a energy transformation? And, how the individual peculiarities of human body as a disease container should be treated? In conclusion, it is also a matter of the existence of dialectic medical science.

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비허(脾虛)(기허(氣虛).양허(陽虛))증(證)에 관(關)한 문헌적(文獻的) 고찰(考察)

  • Yun, Sang-Hyeop;Ryu, Bong-Ha;Park, Dong-Won;Jang, In-Gyu;Ryu, Gi-Won
    • The Journal of Internal Korean Medicine
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    • v.10 no.1
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    • pp.53-64
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    • 1989
  • In an attempt to investigate the current of clinical researches on spleen yang or vital energy deficiency syndrome, the results were as follows. 1. It is possible to occure spleen deficiency syndrome which come from genetic factor. 2. The absorption disturbance in spleen deficiency syndrome can be likely caused by gastrointestinal mucosa injury, disorder of vagus nerve funtion and impairment of excretion of exocrine gland in pancreas. 3. Owing to the failure of tansporting and converting funtion of spleen, minerals, hematogenic substance and nutritional substance are scanty and then imbalanced metabolism state which heat production is decreasing is appeared. 4. By the failure of vital energy and blood growth, decreasement of $O_2$ transportation ability of RBC, disoder of blood coagulation, immune system disturbance which humoral immunity is enhanced and cellular immunity is decreased, are noted. 5. While there is not still an attemt to study the spleen deficiency sydrome in muscle disease or disease of four extremities, but it is likely suggested that spleen-stomach supplyment thereapy is very excellent effect on muscle disease and disease of four extremities.

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A Case Study of One Patient Who Has Diabetic Gangrene in Foot and Finger Due to Diabetes (당뇨로 인한 우측(右側 ) 족저부(足底部) 및 좌수지(左手指) 궤양(潰瘍)을 동반한 환자 치험 1 예)

  • Lee, Sang-Gi;Lee, Kyung-Lo;Song, Jeong-Mo
    • Journal of Sasang Constitutional Medicine
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    • v.16 no.3
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    • pp.129-132
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    • 2004
  • 1. Objectives Besides Diabetes Mellitus, its complications are matter of concerns as well. Its following complications are cardiovascular disease, glomerulopathy, retinopathy, neuropathy and diabetic gangrene. These complications can cause overall damage in major organs. In traditional oriental medicine it has been perceived that gangrene is mainly caused by "hwa(火)" but under sasang constitutional medicine its has been diagnosed as Taeumin superficial-disease(太陰人 表病) and Taeumin Jowiseungchung-tang(調胃升淸湯) was prescribed. As a result, significal improvments was noted and thefore we report the outcome. 2. Methods We have given Taeumin Jowiseungchung-tang(太陰人 調胃升淸湯) to a patient for treating diabetes complications. 3. Results This patient was treated with Sasang Constitional Medicine and acupuncture for about three weeks. After treatment, ulcer and whole body edema were improved considerbly. 4. Conclusions We have dianosed the patient as Taeumin superficial-disease(太陰人 表病) by undergoing several diagnostic method used in sasang constutional medicine. Therefore we have given Taeumin Jowiseungchung-tang(太陰人 調胃升淸湯) to the patient and has obtained satisfactory results in curing several diabetic complications especially ulcer due to diabetes.

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Circulating HOTAIR LncRNA Is Potentially Up-regulated in Coronary Artery Disease

  • Avazpour, Niloofar;Hajjari, Mohammadreza;Yazdankhah, Saeed;Sahni, Azita;Foroughmand, Ali Mohammad
    • Genomics & Informatics
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    • v.16 no.4
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    • pp.25.1-25.5
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    • 2018
  • Coronary artery disease (CAD) is one of the leading causes of death and disability all around the world. Recent studies have revealed that aberrantly regulated long non-coding RNA (lncRNA) as one of the main classes of cellular transcript plays a key regulatory role in transcriptional and epigenetic pathways. Recent reports have demonstrated that circulating lncRNAs in the blood can be potential biomarkers for CAD. HOTAIR is one of the most cited lncRNAs with a critical role in the initiation and progression of the gene expression regulation. Recent research on the role of the HOTAIR in cardiovascular disease lays the basis for the development of new studies considering this lncRNA as a potential biomarker and therapeutic target in CAD. In this study, we aimed to compare the expression of HOTAIR lncRNA in the blood samples of patients with CAD and control samples. The expression level was examined by semi-quantitative reverse transcriptase polymerase chain reaction technique. Our data shows that expression of HOTAIR is up-regulated in blood samples of patients with CAD.

Changes in the Composition and Microbial Community of the Pepper Rhizosphere in Field with Bacterial Wilt Disease

  • Hyun Gi, Kong;Mee Kyung, Sang;Ju Hee, An;Songhwa, Kim;Yong Ju, Jin;Jaekyeong, Song
    • The Plant Pathology Journal
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    • v.38 no.6
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    • pp.692-699
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    • 2022
  • Bacterial wilt caused by Ralstonia solanacearum is considered one of the most harmful diseases of pepper plants. Recently, research on plant disease control through the rhizosphere microbiome has been actively conducted. In this study, the relationship with disease occurrence between the neighboring plant confirmed by analyzing the physicochemical properties of the rhizosphere soil and changes in the microbial community. The results confirmed that the microbial community changes significantly depending on the organic matters, P2O5, and clay in the soil. Despite significant differences in microbial communities according to soil composition, Actinobacteriota at the phylum level was higher in healthy plant rhizosphere (mean of relative abundance, D: 8.05 ± 1.13; H: 10.06 ± 1.59). These results suggest that Actinobacteriota may be associated with bacterial wilt disease. In this study, we present basic information for constructing of healthy soil in the future by presenting the major microbial groups that can suppress bacterial wilt.

Identification of key genes and functional enrichment analysis of liver fibrosis in nonalcoholic fatty liver disease through weighted gene co-expression network analysis

  • Yue Hu;Jun Zhou
    • Genomics & Informatics
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    • v.21 no.4
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    • pp.45.1-45.11
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    • 2023
  • Nonalcoholic fatty liver disease (NAFLD) is a common type of chronic liver disease, with severity levels ranging from nonalcoholic fatty liver to nonalcoholic steatohepatitis (NASH). The extent of liver fibrosis indicates the severity of NASH and the risk of liver cancer. However, the mechanism underlying NASH development, which is important for early screening and intervention, remains unclear. Weighted gene co-expression network analysis (WGCNA) is a useful method for identifying hub genes and screening specific targets for diseases. In this study, we utilized an mRNA dataset of the liver tissues of patients with NASH and conducted WGCNA for various stages of liver fibrosis. Subsequently, we employed two additional mRNA datasets for validation purposes. Gene set enrichment analysis (GSEA) was conducted to analyze gene function enrichment. Through WGCNA and subsequent analyses, complemented by validation using two additional datasets, we identified five genes (BICC1, C7, EFEMP1, LUM, and STMN2) as hub genes. GSEA analysis indicated that gene sets associated with liver metabolism and cholesterol homeostasis were uniformly downregulated. BICC1, C7, EFEMP1, LUM, and STMN2 were identified as hub genes of NASH, and were all related to liver metabolism, NAFLD, NASH, and related diseases. These hub genes might serve as potential targets for the early screening and treatment of NASH.