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Related Concept Videos

Hypothalamic-Pituitary Axis01:37

Hypothalamic-Pituitary Axis

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The response to stress—be it physical or psychological, acute or chronic—involves activation of the Hypothalamic-Pituitary-Adrenal (HPA) axis. The HPA axis is part of the neuroendocrine system because it involves both neuronal and hormonal communication. Its function is to regulate homeostatic systems—metabolic, cardiovascular, and immune—providing the necessary means to respond to a stressor.
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Arteries of the Lower Limbs01:24

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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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Physiological Foundation of Stress01:24

Physiological Foundation of Stress

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Stress triggers a coordinated physiological response involving the sympathetic nervous system (SNS) and the hypothalamic-pituitary-adrenal (HPA) axis. This dual activation ensures that the body is prepared for both immediate and prolonged stress management. The process begins with the perception of a stressor. This initial phase activates the SNS, leading to the rapid release of adrenaline (epinephrine) from the adrenal glands.
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Hormones of the Adrenal Glands01:31

Hormones of the Adrenal Glands

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Adrenal hormones play a pivotal role in maintaining the body's electrolyte balance and orchestrating responses to stress, showcasing the intricate functions of the adrenal cortex and medulla.
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Adrenal Gland Disorders01:27

Adrenal Gland Disorders

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Adrenal gland disorders manifest when the production of adrenal hormones deviates from the norm, resulting in either excessive or insufficient concentrations.
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
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Antiepileptic Drugs: Glutamate Antagonists01:14

Antiepileptic Drugs: Glutamate Antagonists

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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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The sleep-first effect of perampanel in children with self-limited epilepsy with centrotemporal spikes: A temporal efficacy analysis in the context of complex polytherapy.

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Using a Bipolar Electrode to Create a Temporal Lobe Epilepsy Mouse Model by Electrical Kindling of the Amygdala
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Hypothalamic-Pituitary-Adrenal Axis and Epilepsy.

Xueying Bian1, Wenxian Yang2, Jiannan Lin3

  • 1Department of Pediatrics, Shaoxing Peoples' Hospital, The First Affiliated Hospital of Shaoxing University, Shaoxing, China.

Journal of Clinical Neurology (Seoul, Korea)
|February 8, 2024
PubMed
Summary

Epilepsy, a neurological disorder, is triggered by stress. This study investigates the hypothalamic-pituitary-adrenal (HPA) axis

Keywords:
adrenocorticotropic hormonecorticotropin-releasing hormoneepilepsyglucocorticoidshypothalamic-pituitary-adrenal axis

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Using a Bipolar Electrode to Create a Temporal Lobe Epilepsy Mouse Model by Electrical Kindling of the Amygdala
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Electroconvulsive Seizures in Rats and Fractionation of Their Hippocampi to Examine Seizure-induced Changes in Postsynaptic Density Proteins
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Area of Science:

  • Neuroscience
  • Endocrinology
  • Pathophysiology

Background:

  • Epilepsy is a recurrent neurological disorder significantly impacting patients' quality of life.
  • Stressful stimuli are known triggers for seizures and can exacerbate epilepsy.
  • The hypothalamic-pituitary-adrenal (HPA) axis is central to the body's stress response and its dysfunction is implicated in epilepsy.

Purpose of the Study:

  • To explore the relationship between the HPA axis and epilepsy.
  • To elucidate the role of corticotropin-releasing hormone, adrenocorticotropic hormone, and glucocorticoids in epilepsy pathogenesis.

Main Methods:

  • Literature review and synthesis of existing research on the HPA axis and epilepsy.
  • Analysis of the molecular and physiological links between stress hormones and seizure activity.

Main Results:

  • The HPA axis, involving key hormones like glucocorticoids, plays a significant role in the stress response relevant to epilepsy.
  • Dysregulation of the HPA axis is associated with epilepsy symptoms and related psychological conditions.

Conclusions:

  • Understanding the HPA axis's role in epilepsy pathogenesis is crucial.
  • This knowledge may guide the development of novel antiepileptic drugs targeting the stress response system.