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Epilepsy is primarily characterized by unpredictable seizures, either provoked by an identifiable factor, such as injury or illness, or unprovoked, occurring spontaneously without apparent cause.
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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.
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Phenylketonuria (PKU) is a protein metabolism disorder characterized by high blood levels of the amino acid phenylalanine. This results from a mutation in the gene responsible for phenylalanine hydroxylase, an enzyme that converts phenylalanine into tyrosine. When this enzyme is deficient, phenylalanine builds up in the blood, leading to symptoms such as vomiting, rashes, seizures, growth deficiency, and severe mental retardation. An early diagnosis and a diet restricting phenylalanine intake...
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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: Calcium Channel Blockers01:17

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Calcium channel blockers, a class of antiepileptic drugs, regulate the flow of calcium ions within neurons.
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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.
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CDKL5 Deficiency Disorder-A Complex Epileptic Encephalopathy.

Martyna Jakimiec1, Justyna Paprocka1,2, Robert Śmigiel3

  • 1Department of Paediatrics and Developmental Age Neurology, Upper Silesian Child Health Centre, 40-752 Katowice, Poland.

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|February 22, 2020
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Summary
This summary is machine-generated.

CDKL5 deficiency disorder (CDD) involves severe early-onset seizures and developmental delays due to non-functional CDKL5 protein. Research is expanding knowledge on CDD

Keywords:
CDKL5 deficiency disorderchildrenepilepsy

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Area of Science:

  • Genetics and Molecular Biology
  • Neurology
  • Pediatrics

Background:

  • CDKL5 deficiency disorder (CDD) results from a non-functional or absent CDKL5 serine-threonine kinase.
  • CDD is characterized by early-onset epileptic seizures, epileptic encephalopathy, and psychomotor development retardation.
  • The condition's X-chromosome linkage leads to higher prevalence in females, though males often experience more severe symptoms.

Purpose of the Study:

  • To consolidate and disseminate current knowledge on CDKL5 deficiency disorder.
  • To enhance understanding of CDKL5 protein function, disease natural history, and therapeutic strategies.
  • To support families affected by CDD through expanded information and resources.

Main Methods:

  • Review and analysis of clinical data from multiple centers.
  • Establishment and utilization of the International CDKL5 Disorder Database (since 2012).
  • Focus on knowledge expansion regarding CDD's clinical presentation, genetics, and management.

Main Results:

  • Significant progress in understanding CDKL5 protein's role and the natural history of CDD.
  • Evaluation of various therapeutic options, their effectiveness, and patient prognosis.
  • Increased dissemination of information to patient families and the medical community.

Conclusions:

  • CDD is a complex neurodevelopmental disorder requiring comprehensive management.
  • Continued research and data collection are crucial for improving patient outcomes.
  • The International CDKL5 Disorder Database serves as a vital resource for advancing CDD knowledge and support.