In the exercise-depression study by Blumenthal et al. (the SMILE study), which of the treatments had the best success when consi
dering the percentage of individuals who had either recovered or at least partially recovered at a 6-month follow-up period? A. medication group
B. exercise group
C. exercise + medication group
D. all groups had similar success rates
In the exercise-depression study by Blumenthal et al. (the SMILE study), which of the treatments had the best success when considering the percentage of individuals who had either recovered or at least partially recovered at a 6-month follow-up period? B. Exercise group.
Explanation:
Exercise has different depression-reducing effects. It enables the body to producte endorphins that reduce sensations of pain. Moreover, it changes the neurotransmitter levels associated with depression (for example, norepinephrine) and it developes a sense of mastery and self-control through regular practice. <em>The SMILE study concludes that aerobic exercise on MDD remission extend the benefits</em> and it might be better than the benefits of antidepressant use.
D. Each receptor triggers one particular type of cell behavior, for example, activating gene expression.
Explanation:
Each extracellular signal molecule can induce different responses depending on the target cell.
Lipophilic receptors diffuse or carried across the cell's plasma membrane and bind to an intracellular receptor. For example steroid hormones are transported via carrier proteins.
Some signalling molecules only induce response from specific cells.
A single receptor can be activated by different signal molecules.
