Involvement of the Sodium Pump and Endogenous Digitalis-like Compounds in Bipolar Disorder

This study deals with the possible molecular mechanisms that underlie the etiology of bipolar disorders (BD). Previous studies have implicated Na+, K+-ATPase and endogenous digitalis-like compounds (DLC) in the depressive state of this disease. The possibility, however, that they are also involved in the manic phase of the disease was never addressed. The results of this study may have significant implications for the treatment of BD by DLC derivatives.

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Key information

Conditions

Bipolar Disorder Behavior Behavioral Symptoms Bipolar and Related Disorders Depression Mania Mental Disorders Mood Disorders Nervous System Diseases Neurobehavioral Manifestations Neurologic Manifestations Pathological Conditions, Signs and Symptoms Signs and Symptoms

Age range

18 year–80 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Hadassah Medical Organization

Jerusalem, Israel

About this study

Depressive symptoms are the hallmark major depressive disorder, dysthymia and bipolar depression within the context of bipolar disorder (BD). They share clinical characteristics including depressed mood, anhedonia, and low energy and require medical treatment. The Na+, K+-ATPase is a major transporter in the plasma membrane which has an important role in regulating cell volume, cytoplasmic pH and Ca++ levels. Digitalis-like compounds (DLC); steroids identified as normal constituents of human brain, plasma and other tissues, exclusively interact with the Na+, K+-ATPase and induce numerous biological effects. We raised the hypothesis that Na+, K+-ATPase/DLC system is involved in BD based on studies from ours and other laboratories, which tested the involvement of this system in the depressive state of BD. The possibility that the interaction of DLC with the Na+, K+-ATPase is involved in the manic state of BD was scarcely investigated. To address this issue we intend to determine circulating DLC levels in patients with BD at different states of the disease;

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

BIPOLAR DISORDER PATIENTS

Exclusion criteria

NONE

Sponsors and collaborators

Lead sponsor

Hadassah Medical Organization

Other

Registry information

Acronym: NA\K-MANIA

Important dates

Study start: 2011
Primary completion: 2013
Study completion: 2013
First posted: Mar 24, 2011
Registry last updated: Sep 26, 2013

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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Completed