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Related Concept Videos

Adrenal Gland Disorders01:27

Adrenal Gland Disorders

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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Signs of Puberty

Puberty is a critical phase, typically beginning between the ages of 8 and 13 in girls and 9 and 14 in boys, though timing can vary based on genetics, environmental factors, and overall health. This period is characterized by the development of secondary sexual characteristics and the attainment of reproductive potential. Endocrine changes underpin puberty, with hormonal surges of Luteinizing Hormone (LH) and Follicle-Stimulating Hormone (FSH) instigated by Gonadotropin-Releasing Hormone (GnRH)...
Attention-Deficit/Hyperactivity Disorder01:30

Attention-Deficit/Hyperactivity Disorder

Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by persistent inattention, hyperactivity, and impulsivity. It affects approximately 5-8% of children globally, with around 60-70% of cases persisting into adulthood. ADHD has significant implications for educational attainment, social interactions, and occupational success.
Diagnostic Criteria and Symptoms
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Hormones of the Adrenal Glands01:31

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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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Cushing Syndrome II: Pathophysiology01:19

Cushing Syndrome II: Pathophysiology

Cortisol production is normally governed by the hypothalamic–pituitary–adrenal (HPA) axis, which maintains hormonal balance through tightly regulated feedback mechanisms. Disruption of this regulatory system is central to the development of Cushing syndrome, whether the excess cortisol originates from external medications or internal pathology. Persistent cortisol elevation alters metabolism, immune function, and endocrine signaling, producing the characteristic clinical features of the...
Cushing Syndrome I: Introduction01:26

Cushing Syndrome I: Introduction

Cushing syndrome refers to the collection of clinical manifestations that arise when tissues are exposed to excessive amounts of cortisol or cortisol-like medications over an extended period. Cortisol, a glucocorticoid produced by the adrenal cortex, regulates metabolism, immune responses, and the body’s adaptation to stress. When its concentration remains chronically elevated, these physiological pathways become dysregulated, resulting in the characteristic features of the syndrome.Exogenous...

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Establishment of Zone-Enriched Primary Cultures from the Mouse Adrenal Cortex
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Premature adrenarche.

Alexander K C Leung1, Wm Lane M Robson

  • 1University of Calgary, Calgary, Alberta, Canada. aleung@ucalgary.ca

Journal of Pediatric Health Care : Official Publication of National Association of Pediatric Nurse Associates & Practitioners
|July 2, 2008
PubMed
Summary
This summary is machine-generated.

Premature adrenarche is early pubic hair development due to adrenal androgen secretion before age 8 (girls) or 9 (boys). It may indicate future conditions like PCOS, requiring ongoing monitoring.

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Area of Science:

  • Pediatrics
  • Endocrinology
  • Reproductive Health

Background:

  • Premature adrenarche involves early adrenal androgen secretion.
  • Characterized by isolated pubic hair development before age 8 (girls) or 9 (boys).
  • Female predominance (10:1 ratio) with specific hair distribution patterns.

Purpose of the Study:

  • To define premature adrenarche and its clinical manifestations.
  • To differentiate it from other pubertal disorders.
  • To highlight potential associated conditions and the need for follow-up.

Main Methods:

  • Clinical observation and description of symptoms.
  • Exclusion of other causes of precocious puberty.
  • Longitudinal follow-up for associated conditions.

Main Results:

  • Early onset of dark, coarse pubic hair.
  • Absence of other signs of virilization (hirsutism, voice deepening, etc.).
  • Transient growth acceleration but normal final height; normal pubertal onset.

Conclusions:

  • Premature adrenarche is a distinct endocrine event.
  • It can be a precursor to polycystic ovary syndrome (PCOS) or Syndrome X.
  • Requires continued observation and periodic re-evaluation for early detection of associated conditions.