scholarly journals Computational Approach to Investigating Key GO Terms and KEGG Pathways Associated with CNV

2018 ◽  
Vol 2018 ◽  
pp. 1-9
Author(s):  
YuanYuan Luo ◽  
Yan Yan ◽  
Shiqi Zhang ◽  
Zhen Li

Choroidal neovascularization (CNV) is a severe eye disease that leads to blindness, especially in the elderly population. Various endogenous and exogenous regulatory factors promote its pathogenesis. However, the detailed molecular biological mechanisms of CNV have not been fully revealed. In this study, by using advanced computational tools, a number of key gene ontology (GO) terms and KEGG pathways were selected for CNV. A total of 29 validated genes associated with CNV and 17,639 nonvalidated genes were encoded based on the features derived from the GO terms and KEGG pathways by using the enrichment theory. The widely accepted feature selection method—maximum relevance and minimum redundancy (mRMR)—was applied to analyze and rank the features. An extensive literature review for the top 45 ranking features was conducted to confirm their close associations with CNV. Identifying the molecular biological mechanisms of CNV as described by the GO terms and KEGG pathways may contribute to improving the understanding of the pathogenesis of CNV.

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Hang Yin ◽  
ShaoPeng Wang ◽  
Yu-Hang Zhang ◽  
Yu-Dong Cai ◽  
Hailin Liu

Pancreatic cancer is a serious disease that results in more than thirty thousand deaths around the world per year. To design effective treatments, many investigators have devoted themselves to the study of biological processes and mechanisms underlying this disease. However, it is far from complete. In this study, we tried to extract important gene ontology (GO) terms and KEGG pathways for pancreatic cancer by adopting some existing computational methods. Genes that have been validated to be related to pancreatic cancer and have not been validated were represented by features derived from GO terms and KEGG pathways using the enrichment theory. A popular feature selection method, minimum redundancy maximum relevance, was employed to analyze these features and extract important GO terms and KEGG pathways. An extensive analysis of the obtained GO terms and KEGG pathways was provided to confirm the correlations between them and pancreatic cancer.


2020 ◽  
Vol 23 (4) ◽  
pp. 295-303
Author(s):  
Jing Lu ◽  
YuHang Zhang ◽  
ShaoPeng Wang ◽  
Yi Bi ◽  
Tao Huang ◽  
...  

Aim and Objective: Leukemia is the second common blood cancer after lymphoma, and its incidence rate has an increasing trend in recent years. Leukemia can be classified into four types: acute lymphoblastic leukemia (ALL), acute myeloid leukemia (AML), chronic lymphocytic leukemia (CLL), and chronic myelogenous leukemia (CML). More than forty drugs are applicable to different types of leukemia based on the discrepant pathogenesis. Therefore, the identification of specific drug-targeted biological processes and pathways is helpful to determinate the underlying pathogenesis among such four types of leukemia. Methods: In this study, the gene ontology (GO) terms and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways that were highly related to drugs for leukemia were investigated for the first time. The enrichment scores for associated GO terms and KEGG pathways were calculated to evaluate the drugs and leukemia. The feature selection method, minimum redundancy maximum relevance (mRMR), was used to analyze and identify important GO terms and KEGG pathways. Results: Twenty Go terms and two KEGG pathways with high scores have all been confirmed to effectively distinguish four types of leukemia. Conclusion: This analysis may provide a useful tool for the discrepant pathogenesis and drug design of different types of leukemia.


GeroPsych ◽  
2019 ◽  
Vol 32 (3) ◽  
pp. 145-151
Author(s):  
Mahshid Foroughan ◽  
Zahra Jafari ◽  
Ida Ghaemmagham Farahani ◽  
Vahid Rashedi

Abstract. This study examines the psychometric properties of the IQCODE and its applicability in the Iranian elderly population. A group of 95 elderly patients with at least 4 years of formal education who fulfilled the criteria of DSM-IV-TR for dementia were examined by the MMSE and the AMTs. The Farsi version of the IQCODE was subsequently administered to their primary caregivers. Results showed a significant correlation ( p = .01) between the score of the questionnaire and the results of the MMSE ( r = −0.647) and AMTs ( r = −0.641). A high internal reliability of the questionnaire was confirmed by Cronbach’s alpha coefficient (α = 0.927) and test-retest reliability by correlation coefficient ( r = 0.81). This study found that the IQCODE has acceptable psychometric properties and can be used for evaluating the cognitive state in the elderly population of Iran.


2018 ◽  
Author(s):  
S. Sommaruga ◽  
R. Beekman ◽  
S. Chu ◽  
Z. King ◽  
C. Matouk ◽  
...  

2019 ◽  
Vol 3 ◽  
pp. 4
Author(s):  
Andrew C. Clark ◽  
Devang Butani

Sacral insufficiency fractures (SIFs) are a cause of debilitating low back pain that is often difficult to diagnosis and manage. The diagnosis of SIF is often delayed due to inaccurately attributing symptoms to spondylosis, which is a commonly present in the elderly population where SIFs are most prevalent. Historically, treatment consisted of medical management and open reduction internal fixation reserved for severe cases. However, percutaneous sacroplasty has emerged as a minimally invasive treatment option which provides early pain relief without significant complications. The objective of this article is to raise awareness of SIFs and percutaneous sacroplasty as an effective and safe treatment method.


2019 ◽  
Vol 15 (1) ◽  
pp. 33-36
Author(s):  
Animesh Gupta ◽  
Soumya K. Inamadar ◽  
Ashish Goel

Geriatric syndromes consist of common clinical conditions affecting the elderly population. They lead to multiple, interacting medical and social deficits that increase the risk of adverse health outcomes, including dependence, institutionalization and also death. Research over the last few decades, in this area of medicine, has led to evolution of newer syndromes that pose a greater challenge to the physician. The present review aims to provide a synopsis of some of the newer syndromes like frailty, osteosarcopenia, sleep disorders and oropharyngeal dysphagia that have emerged in geriatric literature in recent times.


2009 ◽  
Vol 29 (10) ◽  
pp. 2812-2815
Author(s):  
Yang-zhu LU ◽  
Xin-you ZHANG ◽  
Yu QI

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