Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Regulation of Sodium and Potassium

Regulation of Sodium and Potassium

The regulation of sodium and potassium ion concentrations in the human body is a complex process governed primarily by hormones such as aldosterone, antidiuretic hormone (ADH), and atrial natriuretic peptide (ANP).
Sodium Regulation
Sodium ions make up approximately 90% of extracellular cations, with a normal blood plasma concentration of 136–148 mEq/L. A decrease in blood volume and pressure triggers the release of renin from granular cells in the juxtaglomerular complex (JGC), primarily in...

Renal Regulation of Acid-Base Balance

Renal Regulation of Acid-Base Balance

Metabolic reactions in the body produce nonvolatile acids, such as sulfuric acid, which generate an acid load of approximately 1 mEq of H+ per kilogram of body weight daily. Excreting H+ in the urine is essential to balance this acid load.
In the kidneys, cells within the proximal convoluted tubules (PCT) and the collecting ducts secrete hydrogen ions (H+) into the tubular fluid. Specifically, in the PCT, Na+/H+ antiporters secrete H+ while reabsorbing Na+.
However, the intercalated cells in...

Antihypertensive Drugs: Potassium-Sparing Diuretics

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...

Acute Kidney Injury V: Interprofessional Care

Acute Kidney Injury V: Interprofessional Care

Acute Kidney Injury (AKI) requires a collaborative healthcare approach to restore renal function and prevent complications. Essential management strategies involve monitoring fluid and electrolyte balance, adjusting medications, initiating dialysis when necessary, and providing nutritional support.Fluid and Electrolyte ManagementFluid Monitoring: Regularly monitoring body weight, central venous pressure, and urine output helps detect fluid imbalances early. Patient intake and output are...

Acute Kidney Injury VI: Nursing Management

Acute Kidney Injury VI: Nursing Management

Acute Kidney Injury (AKI) results in an inability to maintain fluid, electrolyte, and acid-base balance. Effective nursing management is critical in improving patient outcomes and includes comprehensive patient assessment and targeted interventions.Comprehensive Patient AssessmentA detailed history collection is essential, focusing on any recent infections, nephrotoxic medication use, or chronic conditions such as hypertension and diabetes that may contribute to AKI. During the physical...

Renal Drug Excretion: Effect of Urine pH, Flow Rate, and Drug pKa

Renal Drug Excretion: Effect of Urine pH, Flow Rate, and Drug pKa

The pH of urine, the drug's pKa, and the urine flow rate are vital parameters for drug reabsorption and excretion. Urinary pH varies between 4.6 and 8.0 and is influenced by diet, drug intake, and the patient's pathophysiology. It affects a drug's ionization state and reabsorption. For instance, carbohydrate-rich food produces alkaline urine promoting drug excretion, while proteins and certain medications like ascorbic acid lead to acidic urine enhancing reabsorption.
The pKa of a drug,...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Microalbuminuria in Rats Treated with D-Nitroarginine Methyl Ether.

Bulletin of experimental biology and medicine·2024

Same author

Role of Proglucagon Peptides in Osmoregulation.

Bulletin of experimental biology and medicine·2021

Same author

Subtypes of Neurohypophyseal Nonapeptide Receptors and Their Functions in Rat Kidneys.

Acta naturae·2020

Same author

The Cascade System of Osmotic Homeostasis Regulation.

Doklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections·2020

Same author

[DIFFERENCES OF EXENATIDE EFFECTS ON GLYCEMIA AND RENAL WATER AND ION EXCRETION IN FROGS AND RATS].

Zhurnal evoliutsionnoi biokhimii i fiziologii·2019

Same author

[EFFECTS OF ORALLY AND PARENTERALLY ADMINISTERED ANALOGS OF PEPTIDE HORMONES ON RENAL WATER AND ION TRANSPORT].

Rossiiskii fiziologicheskii zhurnal imeni I.M. Sechenova·2018

Search research articles

Related Experiment Video

Updated: May 10, 2026

Normothermic Ex Vivo Kidney Perfusion for the Preservation of Kidney Grafts prior to Transplantation

Normothermic Ex Vivo Kidney Perfusion for the Preservation of Kidney Grafts prior to Transplantation

Published on: July 15, 2015

[Ion-regulating renal function during oral and parenteral potassium loading].

A S Marina, A V Kutina

Rossiiskii Fiziologicheskii Zhurnal Imeni I.M. Sechenova

|June 25, 2013

Summary

Oral potassium loading in rats increases potassium excretion more effectively than parenteral loading. Vasopressin analogues influenced electrolyte excretion, suggesting gut involvement in renal regulation.

Area of Science:

Nephrology
Endocrinology
Physiology

Background:

Renal function is crucial for ion homeostasis.
Vasopressin and its analogues modulate water and electrolyte balance.
Understanding potassium excretion mechanisms is vital for managing electrolyte disorders.

Purpose of the Study:

To investigate renal ion regulation after potassium loading.
To determine the influence of vasopressin and its analogues on urinary potassium excretion.
To compare the effects of oral versus parenteral potassium loading on renal function.

Main Methods:

Experiments were conducted on Wistar rats.
Potassium loading was performed via oral and parenteral routes using potassium chloride (KCl) solutions.

More Related Videos

Measuring Cation Transport by Na,K- and H,K-ATPase in Xenopus Oocytes by Atomic Absorption Spectrophotometry: An Alternative to Radioisotope Assays

Measuring Cation Transport by Na,K- and H,K-ATPase in Xenopus Oocytes by Atomic Absorption Spectrophotometry: An Alternative to Radioisotope Assays

Published on: February 19, 2013

Related Experiment Videos

Last Updated: May 10, 2026

Normothermic Ex Vivo Kidney Perfusion for the Preservation of Kidney Grafts prior to Transplantation

Normothermic Ex Vivo Kidney Perfusion for the Preservation of Kidney Grafts prior to Transplantation

Published on: July 15, 2015

Measuring Cation Transport by Na,K- and H,K-ATPase in Xenopus Oocytes by Atomic Absorption Spectrophotometry: An Alternative to Radioisotope Assays

Measuring Cation Transport by Na,K- and H,K-ATPase in Xenopus Oocytes by Atomic Absorption Spectrophotometry: An Alternative to Radioisotope Assays

Published on: February 19, 2013

Urinary excretion of potassium, sodium, and magnesium, as well as diuresis, were measured.

The effects of desmopressin, 1-deamino-Arg4-vasotocin, and vasopressin were evaluated.

Main Results:

Oral potassium loading led to a dose-dependent increase in potassium excretion.
Potassium excretion was higher and faster following oral versus parenteral loading.
Oral potassium loading increased diuresis, sodium, and magnesium excretion.
Vasopressin analogues (desmopressin, 1-deamino-Arg4-vasotocin) attenuated the rise in diuresis and natriuresis.
1-deamino-Arg4-vasotocin and vasopressin stimulated early potassium excretion after oral loading.
Vasopressin analogues did not affect potassium or sodium excretion after parenteral loading.

Conclusions:

The gut plays a role in signaling to the kidney following potassium intake.
Oral potassium loading triggers a more robust renal response compared to parenteral loading.
Vasopressin analogues can modulate electrolyte and water excretion, influencing the body's response to potassium load.