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Saúde metabólica, ossos e nozes durante a perda de peso em adultos (BERN)

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

Saúde metabólica, ossos e nozes fontes de ácidos graxos durante a perda de peso em 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.

Visão geral do estudo

Status

Recrutamento

Condições

Intervenção / Tratamento

Descrição detalhada

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 estudo

Intervencional

Inscrição (Estimado)

44

Estágio

  • Não aplicável

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Contato de estudo

Estude backup de contato

Locais de estudo

    • New Jersey
      • New Brunswick, New Jersey, Estados Unidos, 08901
        • Recrutamento
        • Rutgers University - NJ Inst Food Nutrition & Health
        • Contato:
        • Contato:

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

50 anos a 75 anos (Adulto, Adulto mais velho)

Aceita Voluntários Saudáveis

Sim

Gêneros Elegíveis para o Estudo

Tudo

Descrição

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

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Finalidade Principal: Tratamento
  • Alocação: Randomizado
  • Modelo Intervencional: Atribuição Paralela
  • Mascaramento: Quadruplicar

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: Peanut

Peanut products

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

Comparador Ativo: Nut-free snack

Nut-free snack

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

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Bone Mineral Density (BMD - total hip)
Prazo: Change from baseline to 24 weeks

dual energy x-ray absorptiometry; g/cm2

Change from baseline to 24 weeks

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Soft tissue (lean and fat mass)
Prazo: Change from baseline to 24 weeks

dual energy x-ray absorptiometry (kg)

Change from baseline to 24 weeks
Serum bone turnover
Prazo: 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
Prazo: 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
Prazo: Change from baseline to 24 weeks

Body weight in kg

Change from baseline to 24 weeks
Trabecular BMD
Prazo: Change from baseline to 24 weeks

peripheral quantified computed tomography, g/cm3

Change from baseline to 24 weeks
Trabecular separation
Prazo: Change from baseline to 24 weeks

peripheral quantitative computed tomography, mm

Change from baseline to 24 weeks
Trabecular bone volume / tissue volume
Prazo: Change from baseline to 24 weeks

peripheral quantitative computed tomography, BV/TV (%)

Change from baseline to 24 weeks
Cortical and total (volumetric BMD)
Prazo: change from baseline to 24 weeks

peripheral quantitative computed tomography, g/cm3

change from baseline to 24 weeks
Cortical (thickness)
Prazo: change from baseline to 24 weeks

peripheral quantitative computed tomography, mm

change from baseline to 24 weeks
Cortical (porosity)
Prazo: change from baseline to 24 weeks

peripheral quantitative computed tomography, %

change from baseline to 24 weeks
Inflammatory Markers
Prazo: 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
Prazo: Change in baseline and 24 weeks

serum LDL, HDL, triglycerides (mg/dL)

Change in baseline and 24 weeks
Cognition
Prazo: Change from baseline to 24 weeks

Neuropsychological Test Automated Battery (CANTAB)

Change from baseline to 24 weeks
Physical and sleep activity level
Prazo: 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)
Prazo: 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
Prazo: 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)
Prazo: Change from baseline to 24 weeks

(Core, skin, heat flux)

Change from baseline to 24 weeks

Outras medidas de resultado

Medida de resultado
Descrição da medida
Prazo
Short Physical Performance Battery (SPPB)
Prazo: 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
Prazo: 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
Prazo: Change from baseline to 24 weeks

Dynamometer (kilograms, higher is better)

Change from baseline to 24 weeks
Circumferences
Prazo: Change from baseline to 24 weeks

tape measure (waist and hip)

Change from baseline to 24 weeks
Glucose and insulin
Prazo: Change from baseline and 24 weeks

Serum (mg/dL)

Change from baseline and 24 weeks
Parathyroid hormone
Prazo: Change from baseline to 24 weeks

serum (pg/mL)

Change from baseline to 24 weeks
25-hydroxyvitamin D (25OHD)
Prazo: Change from baseline to 24 weeks

Serum (ng/mL)

Change from baseline to 24 weeks
Estradiol
Prazo: Change from baseline to 24 weeks

serum (pg/mL)

Change from baseline to 24 weeks
Eating self-efficacy
Prazo: 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
Prazo: 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
Prazo: Baseline and 24 weeks

stool

Baseline and 24 weeks
Blood pressure (systolic and diastolic)
Prazo: Change from baseline to 24 weeks

sphygmomanometer (mmHg)

Change from baseline to 24 weeks
Quality of Sleep
Prazo: 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
Prazo: Baseline to 24 weeks

Tissue/Blood (1 hour of MRI time)

Baseline to 24 weeks
Morningness-Eveningness Questionnaire
Prazo: 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
Prazo: 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
Prazo: Change from baseline to 24 weeks

Serum Zonulin

Change from baseline to 24 weeks

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Patrocinador

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Real)

30 de outubro de 2025

Conclusão Primária (Estimado)

31 de dezembro de 2027

Conclusão do estudo (Estimado)

31 de dezembro de 2027

Datas de inscrição no estudo

Enviado pela primeira vez

21 de março de 2025

Enviado pela primeira vez que atendeu aos critérios de CQ

21 de abril de 2025

Primeira postagem (Real)

29 de abril de 2025

Atualizações de registro de estudo

Última Atualização Postada (Real)

6 de novembro de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

3 de novembro de 2026

Última verificação

1 de maio de 2026

Mais Informações

Termos relacionados a este estudo

Outros números de identificação do estudo

  • Pro2023001457
  • 1156048 (Número de outro subsídio/financiamento: TPIF)

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

NÃO

Descrição do plano 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).

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .