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Related Concept Videos

Epilepsy and Seizures: Overview01:24

Epilepsy and Seizures: Overview

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Epilepsy is a chronic neurological disease marked by recurrent, unpredictable seizures. These seizures are caused by abnormal electrical discharges in the brain, leading to behavior, sensation, or consciousness alterations. They can also cause transient impairment of awareness, interfering with daily activities.
Various factors can trigger epilepsy, including genetic factors, brain damage, metabolic causes, and unknown etiology. Diagnosis of epilepsy involves electroencephalography (EEG), which...
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Antiepileptic Drugs: Potassium Channel Activators01:20

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Ezocgabine or retigabine, an antiepileptic drug of remarkable efficacy, has revolutionized the management of seizures. It is a potassium channel activator, explicitly targeting the family of Q subtype potassium channels. It enhances the transmembrane potassium currents, regulating neuronal excitability. This action stabilizes the resting membrane potential, a pivotal factor in mitigating the hyperexcitability that characterizes epilepsy.
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Antiepileptic Drugs: GABAergic Pathway Potentiators01:18

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γ-aminobutyric acid or GABA, plays a pivotal role as an inhibitory neurotransmitter in the brain. GABA pathway potentiators, also known as GABAergic drugs, are a class of pharmaceutical agents designed to enhance the functioning of the GABAergic system. These medications primarily treat epilepsy, a neurological disorder characterized by recurrent seizures.
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Antiepileptic drugs, such as levetiracetam (Keppra) and brivaracetam (Briviact), have emerged as crucial tools in managing epilepsy. These medications exert their therapeutic effects by targeting the synaptic vesicle protein SV2A, a transmembrane glycoprotein primarily found in the brain.
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Antiepileptic Drugs: Glutamate Antagonists01:14

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Glutamate is a fundamental neurotransmitter in the central nervous system, playing a vital role in neuronal communication and various cognitive processes. Glutamate stands as the principal excitatory neurotransmitter in the brain. Its presence is crucial for the communication between neurons, underpinning essential processes such as synaptic transmission, neuronal excitability, and plasticity. These functions are vital for higher-order cognitive processes, including learning and memory. The...
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Neurotransmitters01:31

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Neurotransmitters are essential chemical messengers within the nervous system, facilitating the communication between neurons. These chemical messengers, varying in function and effect, are critical for sustaining various aspects of neurological health and emotional well-being.
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The interactions between reproductive hormones and epilepsy.

Erik Taubøll1, Jouko I T Isojärvi2, Andrew G Herzog3

  • 1Department of Neurology, Oslo University Hospital, Rikshospitalet, Oslo, Norway; Faculty of Medicine, University of Oslo, Oslo, Norway.

Handbook of Clinical Neurology
|July 16, 2021
PubMed
Summary

Hormones, epilepsy, and antiepileptic drugs (AEDs) interact intricately. Both epilepsy and AEDs can disrupt reproductive hormones, leading to common endocrine dysfunctions in men and women with epilepsy.

Keywords:
AllopregnanoloneAntiepileptic drugsCatamenial epilepsyEndocrinologyEstrogenHypothalamusProgesteroneReproductive hormonesTestosteroneValproate

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Area of Science:

  • Endocrinology
  • Neurology
  • Pharmacology

Background:

  • Complex interactions exist between hormones, epilepsy, and antiepileptic drugs (AEDs).
  • Hormonal fluctuations influence epilepsy, and epileptic activity affects hormonal balance in both sexes.
  • Antiepileptic drugs (AEDs) can also disrupt endocrine function, particularly reproductive hormones.

Purpose of the Study:

  • To focus on the clinical importance of interactions between hormones, epilepsy, and AEDs, specifically concerning reproductive hormones.
  • To review the common reproductive endocrine dysfunctions observed in individuals with epilepsy.

Main Methods:

  • Review of existing evidence on the bidirectional relationship between hormones and epilepsy.
  • Examination of the impact of AEDs on endocrine function.
  • Analysis of documented reproductive endocrine dysfunctions in men and women with epilepsy.

Main Results:

  • Reproductive endocrine dysfunction is prevalent in both women and men with epilepsy.
  • Reported issues include menstrual disorders, polycystic ovaries, infertility in women, and reduced potency/sperm abnormalities in men.
  • Epilepsy and AEDs affect hormone levels by targeting the limbic system, hypothalamus, pituitary, endocrine glands, liver, and adipose tissue, altering steroid synthesis, binding proteins, metabolism, and gonadal function.

Conclusions:

  • The interplay between hormones, epilepsy, and AEDs significantly impacts reproductive health.
  • Understanding these complex interactions is crucial for managing endocrine dysfunction in epilepsy patients.
  • Further research into mechanisms and therapeutic strategies is warranted.