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Related Concept Videos

Antihypertensive Drugs: Potassium-Sparing Diuretics01:28

Antihypertensive Drugs: Potassium-Sparing Diuretics

Liddle syndrome is a genetically inherited form of hypertension characterized by the overactivity of epithelial sodium channels in the nephron, the functional unit of the kidney. This heightened activity leads to increased sodium reabsorption and excessive excretion of potassium. To counteract this, potassium-sparing diuretics such as amiloride are used. They function by blocking these sodium channels, thereby reducing the influx of sodium into the epithelial cells and minimizing the loss of...
Renal Tubule and Collecting Duct01:24

Renal Tubule and Collecting Duct

The renal tubule is divided into three parts: the proximal convoluted tubule (PCT), the Loop of Henle (LOH), and the distal convoluted tubule (DCT).
Proximal Convoluted Tubule (PCT):
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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...
Hormonal Regulation01:33

Hormonal Regulation

The renin-aldosterone system is an endocrine system which guides the renal absorption of water and electrolytes, thus managing blood pressure and osmoregulation. Activation of the system begins in the kidneys with a small cluster of cells adjacent to the afferent and efferent blood vessels of the renal corpuscle. As the nephrons are filtering blood, juxtaglomerular cells monitor blood pressure. If they detect a decrease in pressure, they release the hormone renin into the bloodstream.
Hypertension II: Pathophysiology01:29

Hypertension II: Pathophysiology

Hypertension is a chronic condition in which the blood's force against artery walls is excessively high, posing risks such as heart disease. The condition's underlying mechanisms involve complex interactions among the cardiovascular, kidney, and autonomic nervous systems.Renin-Angiotensin-Aldosterone System (RAAS): This system significantly influences blood pressure regulation. When blood pressure decreases, the kidneys secrete renin. This enzyme transforms angiotensinogen, a plasma protein,...
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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...

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Updated: Jun 2, 2026

A Novel Method: Super-selective Adrenal Venous Sampling
06:08

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Published on: September 15, 2017

[Transient pseudohypoaldosteronism].

Natasa Stajić, Jovana Putnik, Aleksandra Paripović

    Srpski Arhiv Za Celokupno Lekarstvo
    |May 17, 2011
    PubMed
    Summary
    This summary is machine-generated.

    Infants with urinary tract malformations and infections may develop transient type 1 pseudohypoaldosteronism (THPA1). Early diagnosis via urine and ultrasound is crucial to prevent underdiagnosis and incorrect treatment.

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    Area of Science:

    • Pediatric Endocrinology
    • Nephrology
    • Urology

    Context:

    • Urinary tract malformations (UTM) and infections (UTI) in infants are associated with transient type 1 pseudohypoaldosteronism (THPA1).
    • THPA1 presents with electrolyte and acid-base imbalances, mimicking other conditions.

    Purpose:

    • To report on a patient series with THPA1, UTM, and/or UTI.
    • To provide suggestions for diagnosis and therapy of THPA1 in infants.

    Summary:

    • Patients exhibited hyponatremia, hyperkalemia, metabolic acidosis, and elevated creatinine, with characteristic urinary electrolyte findings indicating tubular resistance to aldosterone.
    • Elevated aldosterone and plasma aldosterone-to-potassium ratio, along with low urinary K/Na, confirmed tubular resistance.
    • Medical and/or surgical interventions normalized patient parameters. Imaging revealed various urinary tract obstructions.

    Impact:

    • Highlights the importance of considering THPA1 in infants with UTM/UTI and electrolyte disturbances.
    • Emphasizes the necessity of urine and renal ultrasound for accurate THPA1 diagnosis.
    • Aims to prevent underdiagnosis and inappropriate treatment of THPA1 in male infants.