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Neurotransmitters - XML

Neurotransmitters are chemical substances that transmit signals between neurons across synapses. They are classified into amino acids, monoamines, peptides, and other categories, with nervous system function regulated by the balance between excitatory and inhibitory types. Over 100 types are believed to exist, involved in all brain functions including memory and learning, emotions, motor control, and sleep-wake cycles.

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<?xml version="1.0" encoding="UTF-8"?>
<items>
  <item>
    <code>01</code>
    <slug>glutamate</slug>
    <name>Glutamate</name>
    <description>The most important excitatory neurotransmitter in the central nervous system.</description>
    <category>Amino Acid</category>
    <function>Excitatory</function>
  </item>
  <item>
    <code>02</code>
    <slug>gaba</slug>
    <name>GABA</name>
    <description>The major inhibitory neurotransmitter, responsible for approximately 40% of inhibitory processing in the brain.</description>
    <category>Amino Acid</category>
    <function>Inhibitory</function>
  </item>
  <item>
    <code>03</code>
    <slug>dopamine</slug>
    <name>Dopamine</name>
    <description>A monoamine neurotransmitter involved in pleasure, motivation, and reward systems.</description>
    <category>Monoamine (Catecholamine)</category>
    <function>Excitatory/Modulatory</function>
  </item>
  <item>
    <code>04</code>
    <slug>serotonin</slug>
    <name>Serotonin</name>
    <description>An indole monoamine neurotransmitter that regulates mood, sleep, and appetite.</description>
    <category>Monoamine (Indole)</category>
    <function>Inhibitory/Modulatory</function>
  </item>
  <item>
    <code>05</code>
    <slug>acetylcholine</slug>
    <name>Acetylcholine</name>
    <description>The most widely studied neurotransmitter involved in memory, learning, and muscle contraction.</description>
    <category>Choline Derivative</category>
    <function>Excitatory/Inhibitory (context-dependent)</function>
  </item>
  <item>
    <code>06</code>
    <slug>norepinephrine</slug>
    <name>Norepinephrine</name>
    <description>A catecholamine neurotransmitter involved in arousal, attention, and stress response.</description>
    <category>Monoamine (Catecholamine)</category>
    <function>Excitatory/Modulatory</function>
  </item>
  <item>
    <code>07</code>
    <slug>glycine</slug>
    <name>Glycine</name>
    <description>An inhibitory amino acid neurotransmitter that primarily functions in the spinal cord.</description>
    <category>Amino Acid</category>
    <function>Inhibitory</function>
  </item>
  <item>
    <code>08</code>
    <slug>histamine</slug>
    <name>Histamine</name>
    <description>A monoamine neurotransmitter involved in wakefulness, feeding behavior, and immune response.</description>
    <category>Monoamine</category>
    <function>Excitatory/Modulatory</function>
  </item>
  <item>
    <code>09</code>
    <slug>endorphin</slug>
    <name>Endorphin</name>
    <description>A neuropeptide that relieves pain and produces feelings of well-being.</description>
    <category>Neuropeptide</category>
    <function>Modulatory</function>
  </item>
  <item>
    <code>10</code>
    <slug>epinephrine</slug>
    <name>Epinephrine</name>
    <description>A hormone and neurotransmitter that triggers the fight-or-flight response.</description>
    <category>Monoamine (Catecholamine)</category>
    <function>Excitatory</function>
  </item>
</items>