Book contents
- Frontmatter
- Contents
- List of contributors
- Preface
- 1 The developmental origins of health and disease: an overview
- 2 The ‘developmental origins’ hypothesis: epidemiology
- 3 The conceptual basis for the developmental origins of health and disease
- 4 The periconceptional and embryonic period
- 5 Epigenetic mechanisms
- 6 A mitochondrial component of developmental programming
- 7 Role of exposure to environmental chemicals in developmental origins of health and disease
- 8 Maternal nutrition and fetal growth and development
- 9 Placental mechanisms and developmental origins of health and disease
- 10 Control of fetal metabolism: relevance to developmental origins of health and disease
- 11 Lipid metabolism: relevance to developmental origins of health and disease
- 12 Prenatal hypoxia: relevance to developmental origins of health and disease
- 13 The fetal hypothalamic–pituitary–adrenal axis: relevance to developmental origins of health and disease
- 14 Perinatal influences on the endocrine and metabolic axes during childhood
- 15 Patterns of growth: relevance to developmental origins of health and disease
- 16 The developmental environment and the endocrine pancreas
- 17 The developmental environment and insulin resistance
- 18 The developmental environment and the development of obesity
- 19 The developmental environment and its role in the metabolic syndrome
- 20 Programming the cardiovascular system
- 21 The role of vascular dysfunction in developmental origins of health and disease: evidence from human and animal studies
- 22 The developmental environment and atherogenesis
- 23 The developmental environment, renal function and disease
- 24 The developmental environment: effect on fluid and electrolyte homeostasis
- 25 The developmental environment: effects on lung structure and function
- 26 Developmental origins of asthma and related allergic disorders
- 27 The developmental environment: influences on subsequent cognitive function and behaviour
- 28 The developmental environment and the origins of neurological disorders
- 29 The developmental environment: clinical perspectives on effects on the musculoskeletal system
- 30 The developmental environment: experimental perspectives on skeletal development
- 31 The developmental environment and the early origins of cancer
- 32 The developmental environment: implications for ageing and life span
- 33 Developmental origins of health and disease: implications for primary intervention for cardiovascular and metabolic disease
- 34 Developmental origins of health and disease: public-health perspectives
- 35 Developmental origins of health and disease: implications for developing countries
- 36 Developmental origins of health and disease: ethical and social considerations
- 37 Past obstacles and future promise
- Index
- References
5 - Epigenetic mechanisms
Published online by Cambridge University Press: 08 August 2009
- Frontmatter
- Contents
- List of contributors
- Preface
- 1 The developmental origins of health and disease: an overview
- 2 The ‘developmental origins’ hypothesis: epidemiology
- 3 The conceptual basis for the developmental origins of health and disease
- 4 The periconceptional and embryonic period
- 5 Epigenetic mechanisms
- 6 A mitochondrial component of developmental programming
- 7 Role of exposure to environmental chemicals in developmental origins of health and disease
- 8 Maternal nutrition and fetal growth and development
- 9 Placental mechanisms and developmental origins of health and disease
- 10 Control of fetal metabolism: relevance to developmental origins of health and disease
- 11 Lipid metabolism: relevance to developmental origins of health and disease
- 12 Prenatal hypoxia: relevance to developmental origins of health and disease
- 13 The fetal hypothalamic–pituitary–adrenal axis: relevance to developmental origins of health and disease
- 14 Perinatal influences on the endocrine and metabolic axes during childhood
- 15 Patterns of growth: relevance to developmental origins of health and disease
- 16 The developmental environment and the endocrine pancreas
- 17 The developmental environment and insulin resistance
- 18 The developmental environment and the development of obesity
- 19 The developmental environment and its role in the metabolic syndrome
- 20 Programming the cardiovascular system
- 21 The role of vascular dysfunction in developmental origins of health and disease: evidence from human and animal studies
- 22 The developmental environment and atherogenesis
- 23 The developmental environment, renal function and disease
- 24 The developmental environment: effect on fluid and electrolyte homeostasis
- 25 The developmental environment: effects on lung structure and function
- 26 Developmental origins of asthma and related allergic disorders
- 27 The developmental environment: influences on subsequent cognitive function and behaviour
- 28 The developmental environment and the origins of neurological disorders
- 29 The developmental environment: clinical perspectives on effects on the musculoskeletal system
- 30 The developmental environment: experimental perspectives on skeletal development
- 31 The developmental environment and the early origins of cancer
- 32 The developmental environment: implications for ageing and life span
- 33 Developmental origins of health and disease: implications for primary intervention for cardiovascular and metabolic disease
- 34 Developmental origins of health and disease: public-health perspectives
- 35 Developmental origins of health and disease: implications for developing countries
- 36 Developmental origins of health and disease: ethical and social considerations
- 37 Past obstacles and future promise
- Index
- References
Summary
Introduction
There is a growing awareness that whether or not a gene is actively expressed within a particular cell is determined not only by the primary nucleotide sequence of the gene and its regulatory elements, but also by changes in the way the DNA is modified and packaged within the nucleus. This non-sequence-based information is termed epigenetic. Epigenetic changes include methylation of the DNA itself, and modifications of the histone proteins that package the DNA within chromosomes. The pattern of epigenetic information varies from cell type to cell type and is reflected by the cell-specific profile of gene expression. Once established in a differentiated cell type, these epigenetic signals are stably inherited through mitosis, and are essential to maintain the correct gene expression profile within cells of that type for the life of the organism. The acquisition and maintenance of the correct epigenetic profile is therefore essential for normal development. The past decade has witnessed an explosion in our understanding of so-called ‘epigenetic diseases’, where the disruption of an epigenetic signal results in the inappropriate expression or silencing of one or more genes, giving rise to the disease phenotype. The aims of this chapter are to introduce the chemical nature of the major epigenetic signals, to discuss epigenetic processes which take place during normal development, and to briefly review some of the important examples of human diseases arising due to breakdowns in epigenetic processes.
- Type
- Chapter
- Information
- Developmental Origins of Health and Disease , pp. 62 - 74Publisher: Cambridge University PressPrint publication year: 2006
References
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