Relationship between leptin and all-cause and cardiovascular mortality in chronic hemodialysis patients

Juan José Díez1, Maurizio Bossola, María José Fernández-Reyes

  • 1Servicio de Endocrinología, Hospital Ramón y Cajal, Madrid. jdiez.hrc@salud.madrid.org

Insights

Serum leptin and leptin/body mass index (BMI) ratio do not predict cardiovascular disease (CVD) or mortality in hemodialysis patients. These markers are not associated with prevalent CVD or death risk in this population.

Area of Science:

  • Nephrology
  • Cardiology
  • Endocrinology

Background:

  • Cardiovascular disease (CVD) is a major concern in hemodialysis (HD) patients.
  • Leptin, a hormone involved in metabolism, has been investigated for its role in CVD.
  • The leptin/body mass index (BMI) ratio is a proposed marker for metabolic health.

Purpose of the Study:

  • To investigate the association between serum leptin and the leptin/BMI ratio with prevalent CVD in HD patients.
  • To determine the influence of these markers on all-cause and CVD-related mortality in HD patients.

Main Methods:

  • A cohort of 118 stable HD patients was studied.
  • Baseline serum leptin concentrations were measured.
  • Survival analysis and Cox regression were used to assess relationships with mortality.

Main Results:

  • The leptin/BMI ratio was similar in patients with and without CVD at baseline.
  • No independent association was found between the leptin/BMI ratio and prevalent CVD.
  • No significant relationships were observed between leptin levels or leptin/BMI ratio and all-cause or CVD-related mortality.

Conclusions:

  • Serum leptin concentrations and the leptin/BMI ratio are not associated with prevalent CVD in stable HD patients.
  • The leptin/BMI ratio does not appear to be a risk factor for mortality in this patient group.
Abstract

Related Concept Videos

Chronic Kidney Disease II: Clinical Manifestations01:24

Chronic Kidney Disease II: Clinical Manifestations

Chronic Kidney Disease (CKD) progressively impairs multiple body systems due to the accumulation of uremic toxins, which disrupt cellular functions across various organs.Neurologic symptomsNeurologic symptoms often arise early in CKD, as uremic toxin buildup drives changes in cognitive and motor functions. Patients frequently experience fatigue, headache, confusion, difficulty concentrating, and, in severe cases, seizures. Peripheral neuropathy commonly manifests as burning sensations in the...
Hemodialysis II: Procedure and Complications01:24

Hemodialysis II: Procedure and Complications

DialyzersA hemodialysis (HD) dialyzer is a plastic cartridge containing thousands of parallel hollow fibers, which serve as semipermeable membranes. These fibers are typically made from cellulose-based or other synthetic materials. During HD, blood is pumped into the top of the cartridge and distributed among these fibers. Simultaneously, dialysis fluid, known as dialysate, is introduced into the bottom of the cartridge, bathing the outside of the fibers. Across the semipermeable membrane,...
Hemodialysis III: Nursing Management01:25

Hemodialysis III: Nursing Management

The nursing management of a patient undergoing hemodialysis includes several critical steps, starting with a thorough assessment before the procedure.Before the Hemodialysis ProcedureFirst, record the patient's vital signs—blood pressure, heart rate, respiratory rate, and temperature—to establish a baseline. This baseline is essential for detecting conditions such as hypotension that could impact the patient's response to dialysis. Document the patient's pre-dialysis weight, as this measurement...
Chronic Kidney Disease III: Interprofessional Care01:28

Chronic Kidney Disease III: Interprofessional Care

Chronic kidney disease (CKD) requires collaborative and comprehensive management. CKD progresses through stages and can lead to end-stage kidney disease (ESKD) if untreated. Interprofessional collaboration and patient education are crucial, enabling patients to manage their health and improve their quality of life.Diagnostic approach for chronic kidney diseaseThe diagnosis of CKD primarily focuses on the glomerular filtration rate (GFR), which assesses kidney function by measuring how well...
Heart Failure VI: Adjunct Therapies01:22

Heart Failure VI: Adjunct Therapies

Additional therapies for treating patients with heart failure (HF) may include procedural interventions, supplemental oxygen, the management of sleep disorders, and nutritional therapy.Procedural InterventionsImplantable Cardioverter-Defibrillator: For patients at risk of life-threatening arrhythmias due to severe left ventricular dysfunction, an Implantable Cardioverter-Defibrillator (ICD) can detect and terminate these arrhythmias, preventing sudden cardiac death and improving survival rates.
Chronic Kidney Disease IV: Nursing Management01:18

Chronic Kidney Disease IV: Nursing Management

Nursing management is essential for preventing complications, maintaining stability, and improving patients' quality of life in chronic kidney disease (CKD). By using a structured approach, nurses help slow CKD progression and support effective patient care​.1. Comprehensive patient assessmentEffective management begins with nurses reviewing the patient’s medical history, and identifying key risk factors like diabetes, hypertension, and nephrotoxic drug use. Nurses assess signs of fluid...