Related Experiment Video
Updated: Jun 23, 2026
16:13
Modeling Neural Immune Signaling of Episodic and Chronic Migraine Using Spreading Depression In Vitro
Published on: June 13, 2011
Neural substrate of depression during migraine
1Department of Anesthesia and Critical Care, Beth Israel Deaconess Medical Center, Harvard Medical School, Center for Life Science, 330 Brookline Avenue, Boston, MA 02215, USA. rburstei@bidmc.harvard.edu
Summary
Migraine attacks are initiated by various triggers activating brain areas that stimulate parasympathetic neurons. This leads to meningeal vasodilation and inflammation, perpetuating the headache through a feedback loop.
Area of Science:
- Neuroscience
- Pain Research
- Headache Medicine
Background:
- Migraine headaches involve complex physiological and neurological pathways.
- Understanding the precise mechanisms linking triggers to migraine symptoms is crucial.
Purpose of the Study:
- To propose a neurobiological hypothesis for migraine pathogenesis.
- To elucidate the neural circuitry involved in migraine attacks.
Main Methods:
- Hypothetical model based on neuroanatomical pathways.
- Review of trigeminovascular system and central nervous system interactions.
Main Results:
- Migraine triggers activate hypothalamic, limbic, and cortical areas.
- These areas project to the superior salivatory nucleus (SSN), initiating a cascade.
- Trigeminovascular projections contribute to migraine symptoms and sustained attacks via feedback loops.
Conclusions:
- A proposed neurobiological model explains migraine initiation and perpetuation.
- The trigeminovascular system and central brain areas form a feedback network driving migraine attacks.
- This model highlights the role of parasympathetic activation and central processing in migraine pathophysiology.
Related Concept Videos
01:27Depressive Disorders: Etiology
Depressive disorders result from a complex interplay of biological, psychological, and sociocultural factors, each contributing uniquely to the development and persistence of the condition. Understanding these factors provides critical insight into the multifaceted nature of depression.
Biological Factors in Depression
Biological predispositions significantly influence the risk of developing depressive disorders. Genetic studies highlight the role of variations in the serotonin transporter...
Biological Factors in Depression
Biological predispositions significantly influence the risk of developing depressive disorders. Genetic studies highlight the role of variations in the serotonin transporter...
01:27Depressive Disorders: MDD and Dysthymia
Depressive disorders are a group of mental health conditions characterized by pervasive feelings of sadness, diminished pleasure in life, and a significant impact on daily functioning. These conditions are most prevalent in individuals during their 30s and affect women at twice the rate of men. Contrary to popular belief, younger individuals are generally more susceptible to these disorders than older adults. Two key types of depressive disorders include Major Depressive Disorder (MDD) and...
01:18Depression: Overview
Depression is a prevalent mental illness marked by persistent sadness and lack of interest in previously enjoyable activities. It can take several forms, including major depression, persistent depressive disorder, and bipolar I and II disorders. Symptoms range from emotional changes like chronic worry to physical changes like sleep disturbances and suicidal thoughts. From a neurobiological perspective, depression is believed to be triggered by abnormalities in the brain's prefrontal cortex,...
01:05Long-term Depression
Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
01:03Long-term Depression
Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
Calcium Ion Concentration Mechanism
If over time, all...
Calcium Ion Concentration Mechanism
If over time, all...
01:23Antidepressant Drugs: MAOIs and Other Agents
Atypical antidepressants, including bupropion (Wellbutrin), mirtazapine (Remeron), nefazodone (Serzone), trazodone (Desyrel), and vilazodone (Viibryd), offer unique mechanisms of action. Bupropion weakly inhibits dopamine and norepinephrine reuptake, aiding depression treatment and smoking cessation, with a low risk of sexual dysfunction. Mirtazapine enhances serotonin and norepinephrine neurotransmission, leading to sedation, increased appetite, and weight gain. As a result, it helps treat...