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Pharmacological and phytochemical investigations on selected Chinese herbs with regards to their anti-diabetic activities.

by Lau Chun Hong. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2004. / Includes bibliographical references (leaves 179-195). / Abstracts in English and Chinese. / Abstract --- p.i / Abstract in Chinese 摘要 --- p.iv / Acknowledgements --- p.vi / Table of Contents --- p.vii / List of Abbreviations --- p.xiii / List of Figures --- p.xvi / List of Tables --- p.xviii / Publications --- p.xix / Chapter Chapter1 --- Introduction --- p.1 / Chapter 1.1 --- Epidemiology of Diabetes Mellitus --- p.1 / Chapter 1.2 --- Definition of Diabetes Mellitus --- p.2 / Chapter 1.3 --- Glucose Homeostasis and Diabetes Mellitus --- p.2 / Chapter 1.4 --- Classification of Diabetes Mellitus --- p.5 / Chapter 1.4.1 --- Type 1 Diabetes Mellitus --- p.5 / Chapter 1.4.2 --- Type 2 Diabetes Mellitus --- p.6 / Chapter 1.4.3 --- Other Specific Types --- p.7 / Chapter 1.4.4 --- Gestational Diabetes --- p.9 / Chapter 1.4.5 --- Clinical Stages of Diabetes --- p.9 / Chapter 1.5 --- Diagnostic Criteria of Diabetes Mellitus --- p.10 / Chapter 1.6 --- Complications of Diabetes Mellitus --- p.12 / Chapter 1.7 --- Pharmacological Treatment of Diabetes --- p.13 / Chapter 1.7.1 --- Treatment of Type 1 Diabetes --- p.13 / Chapter 1.7.2 --- Treatment of Type 2 Diabetes --- p.14 / Chapter 1.7.2.1 --- Sulphonylureas --- p.17 / Chapter 1.7.2.2 --- Biguanides --- p.18 / Chapter 1.7.2.3 --- α-Glucosidase Inhibitors --- p.19 / Chapter 1.7.2.4 --- Thiazolidinediones --- p.20 / Chapter 1.8 --- Diabetes and Traditional Chinese Medicine --- p.21 / Chapter 1.9 --- Project Objective --- p.27 / Chapter Chapter2 --- Botanical and Phytochemical Studies --- p.28 / Chapter 2.1 --- Introduction --- p.28 / Chapter 2.2 --- Materials --- p.31 / Chapter 2.3 --- Authentication of Herbal Material --- p.41 / Chapter 2.3.1 --- Materials --- p.41 / Chapter 2.3.2 --- Phytochemical Studies --- p.43 / Chapter 2.3.2.1 --- Sample Preparation --- p.43 / Chapter 2.3.2.2 --- Thin Layer Chromatography --- p.46 / Chapter 2.3.3 --- Results --- p.51 / Chapter 2.4 --- Extraction of Herbal Material --- p.56 / Chapter 2.4.1 --- Materials and Methods --- p.56 / Chapter 2.4.2 --- Results --- p.46 / Chapter 2.5 --- Quantification of Sugar Content in Herbal Extracts --- p.58 / Chapter 2.5.1 --- Introduction --- p.58 / Chapter 2.5.2 --- Materials and Methods --- p.58 / Chapter 2.5.3 --- Results --- p.61 / Chapter 2.6 --- Discussion --- p.65 / Chapter Chapter3 --- In vitro Studies on Formula 2 and its Individual Herbs --- p.68 / Chapter 3.1 --- Introduction --- p.68 / Chapter 3.2 --- Intestinal Glucose Absorption Studies --- p.69 / Chapter 3.2.1 --- Introduction --- p.69 / Chapter 3.2.2 --- Materials and Methods --- p.70 / Chapter 3.2.2.1 --- Preparation of BBMV --- p.71 / Chapter 3.2.2.2 --- BBMV Glucose Uptake Assay --- p.72 / Chapter 3.2.2.3 --- Bicinchoninic Acid (BCA) Protein Assay --- p.73 / Chapter 3.2.2.4 --- Preparation of Herbal Chloroform Extract --- p.74 / Chapter 3.2.2.5 --- Glucose Uptake Assay with Herbal Extracts --- p.75 / Chapter 3.2.3 --- Results --- p.76 / Chapter 3.3 --- Hepatic Gluconeogenesis Studies --- p.79 / Chapter 3.3.1 --- Introduction --- p.79 / Chapter 3.3.2 --- Materials and Methods --- p.82 / Chapter 3.3.2.1 --- Cell Culture --- p.83 / Chapter 3.3.2.2 --- Glucose Production Assay --- p.83 / Chapter 3.3.2.3 --- PEPCK Assay --- p.85 / Chapter 3.3.3 --- Results --- p.86 / Chapter 3.4 --- Cellular Glucose Uptake Studies --- p.88 / Chapter 3.4.1 --- Introduction --- p.88 / Chapter 3.4.2 --- Materials and Methods --- p.89 / Chapter 3.4.2.1 --- Cell Culture --- p.89 / Chapter 3.4.2.2 --- Differentiation of 3T3-L1 --- p.90 / Chapter 3.4.2.3 --- 2-Deoxy-D-glucose Uptake Assay --- p.91 / Chapter 3.4.3 --- Results --- p.92 / Chapter 3.5 --- Discussion --- p.96 / Chapter 3.5.1 --- Intestinal Glucose Absorption Studies by BBMV --- p.96 / Chapter 3.5.2 --- Hepatic Gluconeogenesis Studies by H4IIE Cells --- p.97 / Chapter 3.5.3 --- Cellular Glucose Uptake Studies by Hs68 and 3T3-L1 Cells --- p.99 / Chapter 3.5.4 --- Conclusions --- p.100 / Chapter Chapter4 --- In vivo Studies on Selected Herbs --- p.103 / Chapter 4.1 --- Introduction --- p.103 / Chapter 4.1.1 --- Animal Models of Type 2 Diabetes --- p.103 / Chapter 4.1.2 --- Chemically-induced Diabetic Models --- p.104 / Chapter 4.1.3 --- Neonatal-STZ Diabetic Rats --- p.107 / Chapter 4.2 --- Basal Glycaemia Test --- p.109 / Chapter 4.2.1 --- Animals --- p.109 / Chapter 4.2.2 --- Testing Method --- p.110 / Chapter 4.2.3 --- Results --- p.112 / Chapter 4.3 --- Oral Glucose Tolerance Test --- p.114 / Chapter 4.3.1 --- Animals --- p.114 / Chapter 4.3.2 --- Testing Method --- p.114 / Chapter 4.3.3 --- Results --- p.116 / Chapter 4.4 --- Discussion --- p.119 / Chapter Chapter5 --- Bioassay-guided Fractionation of Cortex Moutan --- p.125 / Chapter 5.1 --- Introduction --- p.125 / Chapter 5.1.1 --- Phytochemical Studies of Cortex Moutan --- p.125 / Chapter 5.2 --- Organic Extraction of Cortex Moutan --- p.128 / Chapter 5.2.1 --- Extraction Method --- p.128 / Chapter 5.2.2 --- Results --- p.129 / Chapter 5.3 --- BBMV Glucose Uptake Assay with Fraction CM C --- p.131 / Chapter 5.3.1 --- Materials and Methods --- p.131 / Chapter 5.3.2 --- Results --- p.131 / Chapter 5.4 --- In vivo Studies of Fraction CM-C --- p.133 / Chapter 5.4.1 --- Materials and Methods --- p.133 / Chapter 5.4.2 --- Results --- p.133 / Chapter 5.5 --- Fractionation of Fraction CM-C --- p.137 / Chapter 5.5.1 --- Materials and Methods --- p.137 / Chapter 5.5.2 --- Results --- p.139 / Chapter 5.6 --- BBMV Glucose Uptake Assay with CM-C Sub-fractions --- p.142 / Chapter 5.6.1 --- Results --- p.142 / Chapter 5.7 --- Isolation of Active Compound in Fraction CM-C4 --- p.144 / Chapter 5.7.1 --- Materials and Methods --- p.145 / Chapter 5.7.2 --- Results --- p.146 / Chapter 5.8 --- Structure Elucidation of CM-C4a --- p.148 / Chapter 5.8.1 --- Materials and Methods --- p.148 / Chapter 5.8.2 --- Results --- p.149 / Chapter 5.9 --- Effect of Paeonol in Oral Glucose Tolerance Test --- p.152 / Chapter 5.9.1 --- Materials and Methods --- p.152 / Chapter 5.9.2 --- Results --- p.153 / Chapter 5.10 --- Discussion --- p.155 / Chapter Chapter6 --- General Discussion --- p.163 / Chapter 6.1 --- Introduction --- p.163 / Chapter 6.2 --- Summary of Research Findings --- p.164 / Chapter 6.3 --- Limitations and Improvements --- p.167 / Chapter 6.4 --- Future Directions --- p.169 / Chapter 6.5 --- Conclusion --- p.170 / Appendices --- p.172 / Appendix 1 Low Resolution EI Mass Spectrum of Paeonol Reference --- p.173 / Appendix 2 Low Resolution EI Mass Spectrum of CM-C4a --- p.174 / Appendix 3 High Resolution EI Mass Spectrum of Paeonol Reference --- p.175 / Appendix 4 High Resolution EI Mass Spectrum of CM-C4a --- p.176 / Appendix 5 1H-NMR Spectrum of Paeonol Reference --- p.177 / Appendix 6 1H-NMR Spectrum of CM-C4a --- p.178 / References --- p.179

Identiferoai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_324951
Date January 2004
ContributorsLau, Chun Hong., Chinese University of Hong Kong Graduate School. Division of Chinese Medicine.
Source SetsThe Chinese University of Hong Kong
LanguageEnglish, Chinese
Detected LanguageEnglish
TypeText, bibliography
Formatprint, xix, 195 leaves : ill. (some col.) ; 30 cm.
CoverageChina
RightsUse of this resource is governed by the terms and conditions of the Creative Commons “Attribution-NonCommercial-NoDerivatives 4.0 International” License (http://creativecommons.org/licenses/by-nc-nd/4.0/)

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