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Salud metabólica, huesos y nueces durante la pérdida de peso en adultos (BERN)

3 de noviembre de 2026 actualizado por: Sue A. Shapses, Ph.D., RD, Rutgers, The State University of New Jersey

Salud metabólica, huesos y nueces fuentes de ácidos grasos durante la pérdida de peso en adultos

The aging population is rapidly increasing, and it is important to identify dietary factors that can prevent disease and promote health in this group. Legumes, such as peanuts, are a plant-based food high in protein and unsaturated fat making this a healthy choice but are not consumed frequently enough in older adults. Studies have shown that regular nut consumption is associated with lower adiposity and reduced weight gain, and several dietary pattern studies indicate that nuts and legumes are associated with better bone health. In addition, our preliminary translational data indicates that a higher monounsaturated fatty acid (MUFA) intake is associated with improved bone mineral density (BMD) and quality. Given these findings, the proposed study aims to examine the impact of consuming peanut products on bone health, metabolic health (e.g., serum glucose, insulin, lipids and inflammation), markers of brain and sleep health, and physical function in overweight and obese older adults before and after a six-month weight loss intervention using a randomized controlled design. The results of this study have the potential to provide valuable insights into the role of peanuts as a sources of fatty acids in promoting health and preventing disease in at-risk adults.

Descripción general del estudio

Estado

Reclutamiento

Condiciones

Intervención / Tratamiento

Descripción detallada

The aging population is rapidly increasing, and it is important to identify dietary factors that can prevent disease and promote health in this group. Legumes, such as peanuts, are a plant-based food high in protein and unsaturated fat making this a healthy choice but are not consumed frequently enough in older adults. Studies have shown that regular nut consumption is associated with lower adiposity and reduced weight gain, and several dietary pattern studies indicate that nuts and legumes are associated with better bone health. In addition, our preliminary translational data indicates that a higher monounsaturated fatty acid (MUFA) intake is associated with improved bone mineral density (BMD) and quality. Given these findings, the proposed study aims to examine the impact of consuming peanut products on bone health, metabolic health (e.g., serum glucose, insulin, lipids and inflammation), markers of brain and sleep health, and physical function in overweight and obese older adults before and after a six-month weight loss intervention using a randomized controlled design. The results of this study have the potential to provide valuable insights into the role of peanuts as a sources of fatty acids in promoting health and preventing disease in at-risk adults.

Specific Aims

  1. To determine whether consuming peanuts daily compared to a control group (no nuts) during lifestyle intervention has a differential effect on bone mineral density in older adults who are overweight or obese.
  2. To determine the temporal change in bone turnover biomarkers and bone regulating hormones during weight loss in the diet in older adults with overweight or obesity. Exploratory outcomes will examine metabolic biomarkers (serum glucose, insulin, lipid levels), brain (MRI and biomarkers) and sleep health and physical function.

Tipo de estudio

Intervencionista

Inscripción (Estimado)

44

Fase

  • No aplica

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

  • Nombre: Principal Investigator
  • Número de teléfono: 848-932-9403
  • Correo electrónico: shapses@rutgers.edu

Copia de seguridad de contactos de estudio

Ubicaciones de estudio

    • New Jersey
      • New Brunswick, New Jersey, Estados Unidos, 08901
        • Reclutamiento
        • Rutgers University - NJ Inst Food Nutrition & Health
        • Contacto:
          • Principal Investigator
          • Número de teléfono: 848-932-9403
          • Correo electrónico: shapses@rutgers.edu
        • 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

50 años a 75 años (Adulto, Adulto Mayor)

Acepta Voluntarios Saludables

Sí

Géneros elegibles para el estudio

Todos

Descripción

Inclusion Criteria:

  • Men and postmenopausal women (>2 years since last menses), ages 50-75 years
  • Body mass index (25-42 kg/m2) or evidence of pre-clinical obesity.
  • Agree to be randomly assigned to consume a daily peanut snack or nut-free snack for 24 weeks
  • Must attend on-site visits (about 10) in New Brunswick, NJ, USA (transportation/reimbursement for travel not included)

Exclusion Criteria:

  • Peanut allergies or intolerances
  • Individuals with >5% weight loss in the past 3 months or those with extreme dietary/physical activity habits.
  • An inability to follow the experimental intervention or to perform the required specimen collections.
  • Individuals with significant psychiatric or food disorders.
  • Current diagnosis, or history of cancer in past 3 years.
  • Current diagnosis or history of bone diseases, type I or II diabetes if using insulin, gastrointestinal disease, hyperparathyroidism, Alzheimer's disease, mild cognitive impairment, untreated thyroid disease, significant immune, hepatic, cardiac, or renal disease.
  • History of major surgery in the past 6 months
  • Regular use of medications that affect bone metabolism, including bisphosphonates or hormone replacement.
  • Regular use of medications for cholecystitis, urinary tract infection, severe organic diseases including coronary heart disease, myocardial infarction, infectious diseases including pulmonary tuberculosis and AIDS.
  • Alcohol or illicit drug abuse
  • Any other condition deemed by the Research Physician that would prevent participation in the study, e.g. participation in another clinical research project that may interfere with the results of this study.
  • Participation in another clinical interventional research trial

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

  • Propósito principal: Tratamiento
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación paralela
  • Enmascaramiento: Cuadruplicar

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Peanut

Peanut products

Subjects will receive a daily peanut snack and nutrition education-behavior modification instructions for weight loss

Comparador activo: Nut-free snack

Nut-free snack

Subjects will receive a daily no-nut snack and nutrition education-behavior modification instructions for weight loss

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Bone Mineral Density (BMD - total hip)
Periodo de tiempo: Change from baseline to 24 weeks

dual energy x-ray absorptiometry; g/cm2

Change from baseline to 24 weeks

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Soft tissue (lean and fat mass)
Periodo de tiempo: Change from baseline to 24 weeks

dual energy x-ray absorptiometry (kg)

Change from baseline to 24 weeks
Serum bone turnover
Periodo de tiempo: Change from baseline to 24 weeks

Serum levels (ng/mL) of carboxyterminal crosslinking telopeptide of type I collagen (CTX), procollagen type-I aminoterminal propeptide (PINP), and osteocalcin

Change from baseline to 24 weeks
Areal BMD
Periodo de tiempo: Change from baseline to 24 weeks

Dual energy x-ray absorptiometry: lumbar spine, femoral neck, radius, total body, g/cm2

Change from baseline to 24 weeks
Weight loss
Periodo de tiempo: Change from baseline to 24 weeks

Body weight in kg

Change from baseline to 24 weeks
Trabecular BMD
Periodo de tiempo: Change from baseline to 24 weeks

peripheral quantified computed tomography, g/cm3

Change from baseline to 24 weeks
Trabecular separation
Periodo de tiempo: Change from baseline to 24 weeks

peripheral quantitative computed tomography, mm

Change from baseline to 24 weeks
Trabecular bone volume / tissue volume
Periodo de tiempo: Change from baseline to 24 weeks

peripheral quantitative computed tomography, BV/TV (%)

Change from baseline to 24 weeks
Cortical and total (volumetric BMD)
Periodo de tiempo: change from baseline to 24 weeks

peripheral quantitative computed tomography, g/cm3

change from baseline to 24 weeks
Cortical (thickness)
Periodo de tiempo: change from baseline to 24 weeks

peripheral quantitative computed tomography, mm

change from baseline to 24 weeks
Cortical (porosity)
Periodo de tiempo: change from baseline to 24 weeks

peripheral quantitative computed tomography, %

change from baseline to 24 weeks
Inflammatory Markers
Periodo de tiempo: Change from baseline to 24 weeks

Serum levels of high-sensitivity C-reactive protein (hsCRP), interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α)

Change from baseline to 24 weeks
Lipid panel
Periodo de tiempo: Change in baseline and 24 weeks

serum LDL, HDL, triglycerides (mg/dL)

Change in baseline and 24 weeks
Cognition
Periodo de tiempo: Change from baseline to 24 weeks

Neuropsychological Test Automated Battery (CANTAB)

Change from baseline to 24 weeks
Physical and sleep activity level
Periodo de tiempo: change from baseline to 24 weeks

Time spent in sleep, sedentary activity, and moderate-to-vigorous activity (minutes) using Actigraphy

change from baseline to 24 weeks
Sleep architecture (EEG)
Periodo de tiempo: Baseline and 24 weeks

Time spent in rapid eye movement (REM) sleep, and non-REM stages 1-3 sleep (minutes) and as a percentage of total sleep time

Baseline and 24 weeks
Subjective Sleep
Periodo de tiempo: Change from baseline to 24 weeks

Sleep Diary will be used to assess quality of the previous night's sleep using a Likert scale (higher scores reflect higher quality sleep)

Change from baseline to 24 weeks
Body Temperature (CALERA)
Periodo de tiempo: Change from baseline to 24 weeks

(Core, skin, heat flux)

Change from baseline to 24 weeks

Otras medidas de resultado

Medida de resultado
Medida Descripción
Periodo de tiempo
Short Physical Performance Battery (SPPB)
Periodo de tiempo: Change from baseline to 24 weeks

Modified SPPB includes chair stand, balance test on1 leg and walk test (0-12; higher score is better)

Change from baseline to 24 weeks
Arm Curl
Periodo de tiempo: Change from baseline to 24 weeks

Dumbbell weight (More arm curls are better. Score interpretation is age and sex dependent)

Change from baseline to 24 weeks
Hand Grip
Periodo de tiempo: Change from baseline to 24 weeks

Dynamometer (kilograms, higher is better)

Change from baseline to 24 weeks
Circumferences
Periodo de tiempo: Change from baseline to 24 weeks

tape measure (waist and hip)

Change from baseline to 24 weeks
Glucose and insulin
Periodo de tiempo: Change from baseline and 24 weeks

Serum (mg/dL)

Change from baseline and 24 weeks
Parathyroid hormone
Periodo de tiempo: Change from baseline to 24 weeks

serum (pg/mL)

Change from baseline to 24 weeks
25-hydroxyvitamin D (25OHD)
Periodo de tiempo: Change from baseline to 24 weeks

Serum (ng/mL)

Change from baseline to 24 weeks
Estradiol
Periodo de tiempo: Change from baseline to 24 weeks

serum (pg/mL)

Change from baseline to 24 weeks
Eating self-efficacy
Periodo de tiempo: Change from baseline to 24 weeks

Weight lifestyle efficacy questionnaire short-form (0-80; higher score is better)

Change from baseline to 24 weeks
Diet Quality Score
Periodo de tiempo: Change from baseline to 24 weeks

nutrient analysis software (Healthy Eating Index 0-100; higher score is better)

Change from baseline to 24 weeks
Microbiota
Periodo de tiempo: Baseline and 24 weeks

stool

Baseline and 24 weeks
Blood pressure (systolic and diastolic)
Periodo de tiempo: Change from baseline to 24 weeks

sphygmomanometer (mmHg)

Change from baseline to 24 weeks
Quality of Sleep
Periodo de tiempo: Change from baseline and 24 weeks

Pittsburgh Sleep Quality Index scores (0-21; higher score is worse)

Change from baseline and 24 weeks
MRI of the brain
Periodo de tiempo: Baseline to 24 weeks

Tissue/Blood (1 hour of MRI time)

Baseline to 24 weeks
Morningness-Eveningness Questionnaire
Periodo de tiempo: Baseline and after 24 weeks

Score (16-86; higher score is morningness vs low score is eveningness)

Baseline and after 24 weeks
Biomarkers of brain health
Periodo de tiempo: Baseline and after 24 weeks

Serum amyloid-beta (42,40) and tau markers (217, 181), BDNF, NfL

Baseline and after 24 weeks
Intestinal Permeability biomarker
Periodo de tiempo: Change from baseline to 24 weeks

Serum Zonulin

Change from baseline to 24 weeks

Colaboradores e Investigadores

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

Patrocinador

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 (Actual)

30 de octubre de 2025

Finalización primaria (Estimado)

31 de diciembre de 2027

Finalización del estudio (Estimado)

31 de diciembre de 2027

Fechas de registro del estudio

Enviado por primera vez

21 de marzo de 2025

Primero enviado que cumplió con los criterios de control de calidad

21 de abril de 2025

Publicado por primera vez (Actual)

29 de abril de 2025

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

6 de noviembre de 2026

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

3 de noviembre de 2026

Última verificación

1 de mayo de 2026

Más información

Términos relacionados con este estudio

Otros números de identificación del estudio

  • Pro2023001457
  • 1156048 (Otro número de subvención/financiamiento: TPIF)

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

NO

Descripción del plan IPD

Individual participant data that underlie the results and after deidentification will be shared upon request for researchers who provide a methodologically sound proposal (and IRB approved).

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. .