利用生物信息學(xué)手段對糖尿病和前驅(qū)糖尿病進(jìn)行判別分析的相關(guān)研究
[Abstract]:Objective Type 2 diabetes mellitus (T 2 D) is a worldwide disease. An estimated 347 million people worldwide suffer from diabetes. Therefore, this study explored the feasibility of identifying normal and prediabetic patients by whole blood leukocyte molecular lineage, and trying to find out different genes to further study the pathogenesis of diabetes. Methods A total of 167 blood samples were collected, including 87 T2D patients and 56 normal subjects. The diagnostic criteria of .T2D in 24 patients with prediabetes mellitus were body mass index (BMI) and fasting blood glucose content (FBG) > 126mg / dl, or 2 h glucose level > 200mg / dlin oral glucose tolerance test (OGTT). All samples were analyzed with Oligo microarray containing about 20 000 genes. The gene chip data were analyzed by Gene Spring 10.0 software, and the genes whose multiple change value was more than 2p < 0.05 were found. The differential gene chromosome location and function analysis were carried out by DAVID online analysis tool. The discriminant model is constructed by integrating all the parameters of the sample with spss16.0. Finally, the discriminant model is used to classify the sample. Results there were 79 genes whose multiple variation value was greater than 2. One differential gene was found to be unknown by chromosome mapping analysis. The remaining 78 genes were most distributed on chromosome 1, and 9 genes were located on chromosome 1. The next seven differentially expressed genes were on chromosome 2. According to the functional classification of differentially expressed genes, the number of differentially expressed genes in cell proliferation was the highest. There were 82 parameters including age, sex and race. The optimal discriminant model was obtained, which could confirm 95.1% of the samples. The correct rate of T2D group was 95.9%, that of normal control group was 91.5%, and that of prediabetes group was 100%. Conclusion the differential genes were scattered in all chromosomes, most of which were on chromosome 1 and 2. Differential genes that regulate cell proliferation play an important role in the development of T2D. In this study, 79 gene-binding age, sex and race models can be used to distinguish T _ 2D, normal and prediabetic patients, which will provide a new theoretical basis for the study or treatment of diabetes mellitus mechanism.
【學(xué)位授予單位】:武漢科技大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2015
【分類號】:R587.1
【共引文獻(xiàn)】
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