Sample Essay on:
Depression: Analyzed From A Micro, Molecular And Macro Level

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Essay / Research Paper Abstract

6 pages in length. From environmental to social and cultural to chemical, divergent factors categorize depression as having separate indicators and consequences. The writer discusses how chemical imbalance, compulsive behavior and perpetual poverty might influence depression. Bibliography lists 9 sources.

Page Count:

6 pages (~225 words per page)

File: LM1_TLCdprsh.doc

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Unformatted sample text from the term paper:

at Washington University have discovered possible structural abnormalities in the brain as well. The prefrontal cortex has been found to be smaller in the brains of the depressed person. In fact, one might readily draw from Zimbardo et al that depressed patients have been found to have a drastically smaller volume of a section of the left PFC that sits behind the bridge of the nose. In some cases this section is up to forty percent smaller in depressed persons. When researchers looked into what might cause this shrinkage, it was found that it could be the result of having loss of glia, which are small cells that do important or even critical housekeeping of the brain. The glia might also play a part in the development of serotonin in the system. Additionally, it may be that a defect in the neural development of the prefrontal cortex could be the initial abnormality in depression. "People who suffer from either major depression or manic depression and who also have family members with these mood disturbances display strikingly low numbers of glial cells--but not neurons--in a brain area implicated in emotional behavior and stress responses" (Anonymous 296). Researchers have been making the connection for some time now between depression and the death of astrocytes, noting that the astrocytes -- being essential for the brains nerve cells -- have been discovered to have healing properties. Pennisi notes how neurobiologists are beginning to recognize the regeneration components of astrocytes. "Its going to make [neurobiologists] look at these cells in more detail. It will be interesting to see if they can be purified and used in [brain] repair" (Pennisi PG). Understanding the roles that neurons and astrocytes play ...

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