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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Genetic association study between chitinase and atopic eczema phenotype in Chinese children.

January 2009 (has links)
Ching, Ka Wai. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2009. / Includes bibliographical references (leaves [69-80]). / Abstract also in Chinese. / Abstract (in English) --- p.ii / Abstract (in Chinese) --- p.v / Acknowledgement --- p.viii / Table of Contents --- p.ix / List of Tables --- p.xii / List of Figures --- p.xiii / Glossary of Terms and Abbreviations --- p.xv / Chapter Chapter 1: --- Introduction --- p.1 / Chapter 1.1 --- Introduction of Atopic Eczema (AE) --- p.1 / Chapter 1.1.1 --- Definition and classification of AE --- p.1 / Chapter 1.1.2 --- Epidemiology --- p.3 / Chapter 1.1.2.1 --- The hygiene hypothesis --- p.5 / Chapter 1.2 --- Pathogenesis and Etiology --- p.6 / Chapter 1.2.1 --- Biphasic type-1/type-2 T-helper lymphocyte (Thl/Th2) immunological responses --- p.6 / Chapter 1.2.2 --- Nature and involvements of immunoglobin E (IgE) --- p.8 / Chapter 1.2.3 --- Microbial colonization --- p.9 / Chapter 1.2.4 --- Cytokines involvement --- p.10 / Chapter 1.2.5 --- Pruritus inducing neurotrophic factors --- p.11 / Chapter 1.2.6 --- "Food allergens, aeroallergens" --- p.12 / Chapter 1.2.7 --- Dysregulation of innate immune system --- p.13 / Chapter 1.2.7.1 --- Dysregulation of antimicrobial peptides --- p.14 / Chapter 1.2.7.2 --- Skin barrier impairment --- p.14 / Chapter 1.2.8 --- Genetic predisposition --- p.15 / Chapter 1.3 --- Assessments of Atopic Eczema (AE) --- p.17 / Chapter 1.3.1 --- AE severity assessment --- p.17 / Chapter 1.3.1.1 --- Scoring of atopic dermatitis (SCORAD) system --- p.17 / Chapter 1.3.1.2 --- Nottingham eczema severity score (NESS) --- p.20 / Chapter 1.3.2 --- Dermatological parameter - skin hydration (SH) and transepidermal water loss (TEWL) --- p.22 / Chapter 1.4 --- Chitinase (CHIA) --- p.22 / Chapter 1.4.1 --- Chitin and CHIA --- p.22 / Chapter 1.4.2 --- Association of acid mammalian chitinase (AMCase) with asthma --- p.23 / Chapter 1.4.3 --- Hygiene hypothesis implies: AMCase and allergy relationship --- p.24 / Chapter Chapter 2: --- Hypothesis and Objectives --- p.25 / Chapter 2.1 --- Hypothesis - based on CHIA involvements in canine AE --- p.25 / Chapter 2.2 --- Hypothesis --- p.25 / Chapter 2.3 --- Objective 226}0ؤ based on AMCase single nucleotide polymorphism (SNPs) in asthma susceptibility --- p.25 / Chapter 2.4 --- Objectives --- p.27 / Chapter Chapter 3: --- Methodology --- p.28 / Chapter 3.1 --- Recruitment of cases and controls --- p.28 / Chapter 3.2 --- Assessment of clinical parameters --- p.29 / Chapter 3.2.1 --- Scoring of atopic dermatitis (SCORAD) system --- p.29 / Chapter 3.2.2 --- Nottingham eczema severity score (NESS) --- p.29 / Chapter 3.2.3 --- Dermatologic parameters --- p.29 / Chapter 3.2.3.1 --- Cutaneous bacterial colonization --- p.29 / Chapter 3.2.3.2 --- Skin hydration (SH) and transepidermal water loss (TEWL) --- p.30 / Chapter 3.3 --- Peripheral blood collection and genomic deoxyribonucleic acid (DNA) extraction --- p.30 / Chapter 3.4 --- Acid mammalian chitinase (AMCase) polymorphism genotyping --- p.31 / Chapter 3.4.1 --- Polymerase chain reactions (PCR) amplification of AMCase gene --- p.31 / Chapter 3.4.1.1 --- List of PCR reagents --- p.32 / Chapter 3.4.1.2 --- Electrophoresis reagents --- p.33 / Chapter 3.4.2 --- Restriction fragment length polymorphism (RFLP) analysis of AMCase and confirmation with direct sequencing --- p.33 / Chapter 3.5 --- Statistical analysis --- p.34 / Chapter Chapter 4: --- Results and Data Analysis --- p.36 / Chapter 4.1 --- Results --- p.36 / Chapter 4.1.1 --- Demographic data of cases and controls --- p.36 / Chapter 4.1.2 --- PCR amplification and RFLP analysis of AMCase gene --- p.37 / Chapter 4.1.3 --- PCR cycle sequencing of the PCR fragments --- p.40 / Chapter 4.2 --- Data analysis --- p.41 / Chapter 4.2.1 --- Data overview --- p.41 / Chapter 4.2.2 --- Genotypes distribution of AMCase polymorphisms --- p.43 / Chapter 4.2.2.1 --- Allele frequency comparison of AMCase single nucleotide polymorphism (SNPs) by chi-square --- p.43 / Chapter 4.2.2.2 --- Allele frequency comparison of AMCase SNPs by logistic regression analysis --- p.44 / Chapter 4.2.3 --- Haplotype frequency estimation via maximum likelihood algorithm --- p.45 / Chapter 4.2.4 --- Association of AMCase polymorphism with Atopic Eczema (AE) clinical parameters --- p.47 / Chapter 4.2.4.1 --- Peripheral blood eosinophil counts --- p.48 / Chapter 4.2.4.2 --- Serum immunoglobin E (IgE) level --- p.49 / Chapter 4.2.4.3 --- Dermatologic factors --- p.49 / Chapter 4.2.4.3.1 --- Cutaneous Staphylococcus aureus colonization --- p.49 / Chapter 4.2.4.3.2 --- Skin hydration (SH) and transepidermal water loss (TEWL) --- p.50 / Chapter Chapter 5: --- Discussion --- p.52 / Chapter 5.1 --- Data overview --- p.52 / Chapter 5.2 --- AMCase rs3806448 polymorphism was significantly different among AE cases and controls --- p.53 / Chapter 5.2.1 --- Allele frequency comparison of AMCase SNPs polymorphisms by chi-square --- p.53 / Chapter 5.2.2 --- Allele frequency comparison of AMCase SNPs polymorphisms by logistic regression analysis --- p.54 / Chapter 5.2.3 --- The possible genetic modification by rs3806448 homozygous recessive genotype --- p.55 / Chapter 5.3 --- "Significant difference of haplotype frequency, 2212 among case-control comparison" --- p.56 / Chapter 5.4 --- Strong associations between AMCase SNPs polymorphisms and clinical parameters of AE --- p.57 / Chapter 5.4.1 --- Peripheral blood eosinophil counts --- p.57 / Chapter 5.4.2 --- Dermatologic factors --- p.58 / Chapter 5.4.2.1 --- Cutaneous Staphylococcus aureus colonization --- p.58 / Chapter 5.4.2.2 --- Skin hydration (SH) and transepidermal water loss (TEWL) --- p.59 / Chapter 5.5 --- Limitation of the present study --- p.59 / Chapter Chapter 6: --- Conclusion and Future Prospect --- p.62 / Chapter 6.1 --- Conclusion --- p.62 / Chapter 6.2 --- Future prospect --- p.62 / Chapter Chapter 7: --- Appendices --- p.64 / Chapter Chapter 8: --- References --- p.69

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