New evidence concerning the pathophysiology of migraine has come from the results of therapeutic transcranial magnetic stimulation (tTMS). The instantaneous responses to single pulses applied during the aura or headache phase, together with a number of other observations, make it unlikely that cortical spreading depression is involved in migraine. tTMS is considered to act by abolishing abnormal impulse activity in cortical pyramidal neurons and a suggestion is made as to how this activity could arise.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1590/0004-282X20150094 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Inhibition of prefrontal glutamatergic neuron activity during the recovery period following chronic stress disrupts fear memory in male rats: potential role of the infralimbic cortex.
Learn Mem
January 2025
Department of Psychology, Arizona State University, Tempe, Arizona 85287, USA
Chronic stress typically leads to deficits in fear extinction. However, when a delay occurs from the end of chronic stress and the start of fear conditioning (a "recovery"), rats show improved context-cue discrimination, compared to recently stressed rats or nonstressed rats. The infralimbic cortex (IL) is important for fear extinction and undergoes neuronal remodeling after chronic stress ends, which could drive improved context-cue discrimination.
View Article and Find Full Text PDFSpreading depolarization triggers pro- and anti-inflammatory signalling: a potential link to headache.
Brain
January 2025
Institute of Neurological Sciences and Psychiatry, Hacettepe University, 06100, Ankara, Turkey.
Cortical spreading depolarization (CSD), the neurophysiological event believed to underlie aura, may trigger migraine headaches through inflammatory signaling that originates in neurons and spreads to the meninges via astrocytes. Increasing evidence from studies on rodents and migraine patients supports this hypothesis. The transition from pro-inflammatory to anti-inflammatory mechanisms is crucial for resolving inflammation.
View Article and Find Full Text PDFSeizure network characterization by functional connectivity mapping and manipulation.
Neurophotonics
January 2025
Weill Cornell Medicine, Department of Neurological Surgery, New York, United States.
Significance: Despite the availability of various anti-seizure medications, nearly 1/3 of epilepsy patients experience drug-resistant seizures. These patients are left with invasive surgical options that do not guarantee seizure remission. The development of novel treatment options depends on elucidating the complex biology of seizures and brain networks.
View Article and Find Full Text PDFAdvances in Migraine Treatment: A Comprehensive Clinical Review.
Curr Protein Pept Sci
January 2025
Department of Pharmacology, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur- 603203, Chengalpattu, Tamil Nadu, India.
Migraine is a neurological disease that, while not inherently causing "chronic headaches," can evolve into a chronic condition over time including major symptoms such as nausea, and light, sound, and allodynia, particularly in cases of frequent episodic migraine or due to factors such as medication overuse or inadequate management. This condition's complex pathophysiology makes treatment difficult. Genetics, trigeminovascular system activation, and cortical spreading depression are involved.
View Article and Find Full Text PDFAura phenomenon: a proposal for an etiology-based clinical classification.
J Headache Pain
January 2025
Department of Neuroscience, Bufalini Hospital, AUSL Romagna, Cesena, Italy.
Background: The term "aura" refers to a well-defined pattern of usually positive, progressive, and reversible neurological symptoms, with spreading depolarization as the underlying mechanism. While commonly associated with migraine, aura can also occur in other neurological disorders (i.e.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!