Researchers from the Northwestern University Feinberg School of Medicine shared two major findings:

1. Antidepressant drugs were not developed for depression. Researchers used certain drugs to manipulate the behavior of stressed animals, and then concluded (erroneously) that the drugs would be “good antidepressants.” But chronic stress does not cause the same molecular changes that depression does, making the hypothesis incorrect.

So, antidepressants were actually designed to treat stress, rather than depression — which is one reason they are so ineffective.

2. An imbalance of neurotransmitters in your brain may not trigger depressive symptoms as has long been thought. Instead, the biochemical events that lead to depression appear to start in the development and functioning of neurons. This means antidepressants focus on the effect of depression and completely miss the cause… yet another reason why they are so ineffective for most people.

Unfortunately, the lead researcher is hoping the research will “open up new routes to develop new antidepressants,” when in reality a drug solution is not the answer.

http://www.eurekalert.org/pub_releases/2009-10/nu-wad102309.php

Low testosterone levels in older men are associated with an increased risk of depression, according to an?Australian study.

Between 2001 and 2004, researchers at the University of Western Australia in Perth studied 3,987 males aged 71 to 89. The men provided demographic and health information and were tested for depression and cognitive difficulties. The researchers also checked the men’s testosterone levels.

The 203 men who met the criteria for depression had significantly lower total and free (not bound to proteins) testosterone levels than those who weren’t depressed. After controlling for other factors, such as cognitive scores, education level and body-mass index, the researchers concluded that men in the lowest quintile (20 percent) of free testosterone were three times more likely to have depression compared to those in the highest quintile.

The findings were published in the March issue of the Archives of General Psychiatry.

There is more and more evidence mounting?for?medically supervised?hormone replacement therapy.?
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