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The biology of depression is the attempt to identify a biochemical origin of depression, as opposed to theories that emphasize psychological or situational causes. [ 1 ] Scientific studies have found that different brain areas show altered activity in humans with major depressive disorder (MDD) . [ 2 ]
The brain stem is the first part of the brain that develops in a mammal out of the neural crest. It is also the oldest part of the brain and controls many automatic functions such as consciousness, breathing, heart rate, digestion, and many more. Opioid receptors are specialized pain-blocking receptors. They bind a wide range of hormones ...
A depressogen is a substance that causes or can cause depression, usually as a side effect. [1] They are the functional opposites of antidepressants. [2]Examples of drugs commonly associated with depressogenic effects include ethanol, some anticonvulsants such as the barbiturates (e.g. phenobarbital), benzodiazepines (e.g. diazepam), vigabatrin, and topiramate, corticosteroids like ...
Medications for Depression: An Overview. Antidepressants are a class of medications used very commonly to treat depression. In fact, nearly 13 percent of people 12 and over in the U.S. used ...
Notably, all of these compounds are analogues and are also classified as tetracyclic antidepressants (TeCAs) based on their chemical structures. S32212, a structurally novel NaSSA with an improved selectivity profile (e.g., no antihistamine effects, etc.), was reported in 2012.
Toxic encephalopathy is a neurologic disorder caused by exposure to neurotoxic organic solvents such as toluene, following exposure to heavy metals such as manganese, as a side effect of melarsoprol treatment for African trypanosomiasis, adverse effects to prescription drugs, or exposure to extreme concentrations of any natural toxin such as cyanotoxins found in shellfish or freshwater ...
For example, St. John's wort was traditionally prescribed in parts of Europe for depression (in addition to use as a general-purpose tea), and Chinese medicine developed elaborate lists of herbs and preparations. These and various other substances that have an effect on the brain are still used as remedies in many cultures.
Endogenous depression is an atypical subclass of major depressive disorder (clinical depression). It could be caused by genetic and biological factors. [ 1 ] Endogenous depression occurs due to the presence of an internal (cognitive, biological) stressor instead of an external (social, environmental) stressor. [ 2 ]
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related to: chemicals in the brain that cause depression examples pdf worksheet free