Epigenesis to Cognitive Development

Topics: Nervous system, Central nervous system, Myelin Pages: 2 (1142 words) Published: October 27, 2014

Running Head: EPIGENESIS TO COGNITIVE DEVELOPMENT 1 Epigenesis to Cognitive Development
EPIGENESIS TO COGNITIVE DEVELOPMENT 2
Epigenesis to Cognitive Development Case Study
Epigenesis is defined as the set of processes by which environmental factors outside of hereditary material itself can influence how hereditary materials functions (Broderick & Blewitt, 2014). Cells specialize because chromosomal material is influenced by the environment surrounding the cell. Something in each cell’s environment must interact with hereditary material to direct the cell’s developmental outcome, making specialization possible. Chemicals in the cytoplasm move beyond a cell to influence adjacent cells and ultimately to influence behavior in the outside environment (Gottlieb, 2003).One particular epigenetic change that will be focused on is demethylation. Demethylation can be defined as an epigenetic change that makes the expression of a gene more likely and involves the removal of a methyl group from a coded gene or from regulatory DNA or the removal of a methyl group from histones that bind with DNA (Broderick & Blewitt, 2014). Multiple sclerosis (MS) is an auto-immune condition in which the immune system attacks the central nervous system, leading to demyelination. According to “The Causes and Treatment of Progressive Paralytic Diseases of the Nervous System,” MS affects the areas of the brain and spinal cord known as the white matter, destroying a fatty layer called the myelin sheath, which wraps around nerve fibers and electrically insulates them. When myelin is lost, the axons of neurons can no longer effectively conduct action potentials. Although much is known about the mechanisms involved in the disease process, the cause remains unknown; however, there are links to genetics and environmental factors (Bhargava, 2013). Jennifer, a thirty-seven year old white woman, has been married to thirty-six year old Chinese man, Jianshe Li, for ten...

References: Bhargava, H. (Ed.). (2013, October 30). Multiple Sclerosis and Pregnancy: Risks,
Complications, and More
Gottlie, G. (2003). Probabilistic epigensis of development. In J. Valsiner & K.J. Connolly (Eds.),
Handbook of developmental psychology (pp
Serani, D. (2009, February 23). Interview with Doctor Deb, Psychologist. Retrieved October 21,
2014, from http://www.healthcentral.com/multiple-sclerosis/c/73302/59521/doctor
The Causes and Treatment of Progressive Paralytic Diseases of the Nervous System. (n.d.).
Retrieved October 21, 2014, from http://www.regenerativenutrition.com/content.asp?id=515
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