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Serum Maresin-1 Levels in Patients With Lipedema: A Cross-Sectional Study (LIP-MARES)

11 de junio de 2026 actualizado por: Zeynep Karakuzu Güngör, Kanuni Sultan Suleyman Training and Research Hospital

Evaluation of the Relationship Between Serum Maresin-1 Levels and Clinical and Inflammatory Parameters in Patients With Lipedema

Lipedema is a chronic and progressive adipose tissue disorder characterized by symmetrical fat accumulation, pain, tenderness, and easy bruising, predominantly affecting women. Increasing evidence suggests that chronic low-grade inflammation and impaired resolution of inflammation may contribute to its pathophysiology. Maresin-1 is a specialized pro-resolving lipid mediator with potent anti-inflammatory and tissue-protective properties; however, its role in lipedema remains largely unknown. This cross-sectional observational study aims to evaluate serum Maresin-1 levels in women with lipedema and to investigate their associations with pain severity, inflammatory markers, central sensitization, and quality of life. Serum Maresin-1 levels and clinical characteristics will be compared among women with lipedema, obese women without lipedema, and healthy controls to explore the potential value of Maresin-1 as a biomarker in lipedema.

Descripción general del estudio

Estado

Aún no reclutando

Condiciones

Descripción detallada

Lipedema is a chronic, progressive adipose tissue disorder that predominantly affects women and is characterized by symmetrical enlargement of the extremities, pain, tenderness, and easy bruising. Despite its increasing recognition, the underlying pathophysiological mechanisms remain incompletely understood. Current evidence suggests that adipose tissue dysfunction, microvascular alterations, and chronic low-grade inflammation may contribute to disease development and progression. Distinguishing lipedema from obesity and lymphedema remains a major clinical challenge, highlighting the need for reliable biological markers.

Maresin-1 is a macrophage-derived specialized pro-resolving lipid mediator involved in the active resolution of inflammation and the restoration of tissue homeostasis. Experimental and clinical studies have demonstrated its anti-inflammatory and immunomodulatory properties in several chronic inflammatory conditions. However, the relationship between circulating Maresin-1 levels and the clinical manifestations of lipedema has not been adequately investigated.

This study is designed as a single-center, cross-sectional, observational study including three groups: women with clinically diagnosed lipedema, obese women without lipedema, and healthy female controls. A total of 84 participants are planned to be enrolled, with 28 individuals in each group.

Serum Maresin-1 concentrations will be measured using the enzyme-linked immunosorbent assay (ELISA) method. Clinical assessments will include pain severity evaluated by the Visual Analog Scale (VAS), central sensitization assessed by the Central Sensitization Inventory (CSI), and health-related quality of life measured using the EuroQol-5D (EQ-5D). Routine inflammatory parameters, including C-reactive protein (CRP) and the neutrophil-to-lymphocyte ratio (NLR), will also be evaluated.

The primary objective of the study is to compare serum Maresin-1 levels among the three groups. Secondary objectives are to investigate the associations between Maresin-1 levels and pain severity, inflammatory parameters, central sensitization, and quality of life, as well as to explore the potential role of Maresin-1 as a biomarker for lipedema pathophysiology.

Tipo de estudio

De observación

Inscripción (Estimado)

84

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Estudio Contacto

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

  • Adulto
  • Adulto Mayor

Acepta Voluntarios Saludables

Sí

Método de muestreo

Muestra no probabilística

Población de estudio

The study population will consist of adult women aged 18 to 65 years recruited from the Physical Medicine and Rehabilitation outpatient clinic of a tertiary care hospital. Participants will be classified into three groups: (1) women with clinically diagnosed lipedema, (2) women with obesity (body mass index ≥30 kg/m²) without lipedema, and (3) healthy female volunteers without chronic or inflammatory diseases. A total of 84 participants are planned to be enrolled, with 28 individuals in each group. The study aims to compare serum Maresin-1 levels and their associations with clinical and inflammatory parameters across these populations.

Descripción

Inclusion Criteria:

  • Female participants aged 18 to 65 years. Women with a clinical diagnosis of lipedema for the lipedema group. Women with obesity (body mass index ≥30 kg/m²) and without a diagnosis of lipedema for the obesity group.

Healthy female volunteers without chronic or inflammatory diseases for the healthy control group.

No acute infection within the previous 3 months. Ability and willingness to provide written informed consent.

Exclusion Criteria:

  • Active infection at the time of enrollment. History of autoimmune or chronic inflammatory disease. History of malignancy. Pregnancy or breastfeeding. Current use of corticosteroids or immunosuppressive medications. Regular use of anti-inflammatory medications that may affect inflammatory biomarkers.

Acute infection within the previous 3 months. Inability to comply with study procedures or complete study assessments. Refusal or inability to provide written informed consent.

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

Cohortes e Intervenciones

Grupo / Cohorte
Lipedema
Women with clinically diagnosed lipedema.
Obesity
Women with obesity (BMI ≥30 kg/m²) without clinical lipedema.
Healthy Control
Healthy women without lipedema or obesity and without chronic inflammatory disease.

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Serum Maresin-1 Level
Periodo de tiempo: At baseline (single assessment during study participation)
The primary outcome is the serum Maresin-1 concentration measured in peripheral venous blood samples using a commercially available enzyme-linked immunosorbent assay (ELISA). Serum Maresin-1 levels will be compared among women with lipedema, obese women without lipedema, and healthy controls.
At baseline (single assessment during study participation)

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Pain Severity (Visual Analog Scale, VAS)
Periodo de tiempo: At baseline (single assessment during study participation)
Pain intensity will be assessed using the 10-cm Visual Analog Scale (VAS). Higher scores indicate greater pain severity.
At baseline (single assessment during study participation)
Central Sensitization Inventory (CSI) Score
Periodo de tiempo: At baseline (single assessment during study participation)
Central sensitization symptoms will be evaluated using the Central Sensitization Inventory (CSI). Higher scores indicate greater central sensitization.
At baseline (single assessment during study participation)

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Estimado)

20 de junio de 2026

Finalización primaria (Estimado)

20 de agosto de 2026

Finalización del estudio (Estimado)

1 de septiembre de 2026

Fechas de registro del estudio

Enviado por primera vez

11 de junio de 2026

Primero enviado que cumplió con los criterios de control de calidad

11 de junio de 2026

Publicado por primera vez (Actual)

16 de junio de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

16 de junio de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

11 de junio de 2026

Última verificación

1 de junio de 2026

Más información

Términos relacionados con este estudio

Otros números de identificación del estudio

  • LIP-MAR-2026-001

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

No

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

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