Impact of Peanut Consumption on Stress, Immune Function, Inflammation, and Cardiovascular Health in High-Stress Individuals
8 de septiembre de 2026 actualizado por: USDA, Western Human Nutrition Research Center
Effects of Peanut Consumption on Physiological and Psychosocial Stress, Circulating Immune Cell Status, Markers of Inflammation and Cardiovascular Disease Risk, and Gastrointestinal Health in High-Stress Individuals
The purpose of this research is to determine whether peanut consumption improves indicators of cardiovascular disease (CVD) risk in human subjects following the consumption of study foods.
Descripción general del estudio
Estado
Reclutamiento
Condiciones
Intervención / Tratamiento
Descripción detallada
The overall goal of the proposed study is to determine whether peanut consumption improves indices of cardiovascular disease (CVD) risk in human subjects with high levels of perceived chronic stress.
Chronic stress is a growing public health concern and is associated with adverse health outcomes, including CVD.
Stress, experienced when a person feels that environmental, physiological, or psychosocial demands tax or exceed their adaptive capacity, triggers a coordinated response from the sympathetic nervous system (SNS) and hypothalamic- pituitary- adrenal (HPA) axis increasing blood pressure, driving systemic inflammation, and affecting the immune system by accelerating the output of disease-promoting immune cells from bone marrow.
Tipo de estudio
Intervencionista
Inscripción (Estimado)
70
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: Ellen Bonnel, PhD
- Número de teléfono: 530-752-4184
- Correo electrónico: elbonnel@ucdavis.edu
Copia de seguridad de contactos de estudio
- Nombre: Ione Summers, BSc
- Número de teléfono: 530-754-8544
- Correo electrónico: iosummerssteffes@ucdavis.edu
Ubicaciones de estudio
-
-
California
-
Davis, California, Estados Unidos, 95616
- Reclutamiento
- Western Human Nutrition Research Center
-
Contacto:
- Ellen Bonnel, PhD
- Número de teléfono: 530-752-4184
- Correo electrónico: elbonnel@ucdavis.edu
-
Contacto:
- Ione Summers, B.S.
- Número de teléfono: 530-754-8544
- Correo electrónico: iosummerssteffes@ucdavis.edu
-
Investigador principal:
- Ryan Snodgrass, PhD
-
Sub-Investigador:
- Danielle Lemay, PhD
-
Sub-Investigador:
- Mary Kable, PhD
-
Sub-Investigador:
- Kevin Laugero, PhD
-
-
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
Descripción
Inclusion Criteria:
- Males and females
- 18-65 years old
- BMI ≥ 18.5 kg/m2 and ≤ 39.9 kg/ m2
- Recruitment will be based on Perceived Stress Scale - 4 (PSS-4) score
Exclusion Criteria:
- Less than 18 and over 65 years old
- Pregnant or lactating women
- Adults who rely on prescription medication that may influence study variables, apart from birth control
- BMI < 18.5 kg/m2 and > 39.9 kg/m2
- Smokers who currently use tobacco- or marijuana-containing products including e-cigarettes, vape pens, pod mods, tanks, and electronic nicotine delivery devices (ENDS)
- Habitual consumption of nuts, nut butters, nut powders, nut side dishes, nut bars or other nut products
- Known food allergies (milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, soybeans, sesame, corn) due to samples not prepared in a hypoallergenic environment
- Currently living in close contact with individuals who have an allergy to peanuts, in order to avoid exposing these individuals to an allergen
- Self-reported history of difficulties with blood drawing procedures including prior fainting or dizziness, or veins assessed as not suitable for four separate venipunctures by licensed phlebotomist
Diagnosed active chronic diseases for which the individual is currently taking daily medication, including but not limited to:
- Diabetes mellitus, cardiovascular disease, cancer, gastrointestinal disorders, kidney disease, liver disease, bleeding disorders, asthma, autoimmune disorders, hypertension, osteoporosis
- Recent minor surgery (within 4 weeks) or major surgery (within 16 weeks)
- Known gallbladder disease or history of cholecystectomy
- History of gastrointestinal surgery, including gastric bypass surgery or resection
- Diagnosis of irritable bowel syndrome
- Recent antibiotic therapy (within 4 weeks)
- Recent hospitalization (within 4 weeks)
- Current participation in another research study
- Has HIV/AIDS, hepatitis, or another disease that affects the immune system
- Gives regular blood donations and is unwilling to stop during the study
- Blood Pressure ≥ 140 mmHg systolic or 90 mmHg diastolic
- Current diagnoses of an eating disorder (ex. anorexia, bulimia, etc.)
- High - very high triglyceride levels: ≥ 300 mg/dL
- Adults who are unable to consent, individuals who are not yet adults (infants, children and teenagers), pregnant women and prisoners will be excluded from participation in the study
- Participants who are unwilling to collect and transport urine, stool and saliva samples
- Abnormal hemoglobin and/or hematocrit levels
- Abnormal liver function (defined as liver enzymes that are >200% of upper limit (ALT upper limit is 43 U/L or Aspartate transaminase (AST) upper limit is 54 U/L)
- Unwillingness to discontinue probiotic, prebiotic, fiber, or other supplements (except RDA-level vitamin and mineral supplements) during the study
- Unwilling to consume study foods
- Alcohol consumption > 20 g/day
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: Ciencia básica
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación cruzada
- Enmascaramiento: Ninguno (etiqueta abierta)
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
|
Experimental: Peanut Intervention followed by corn chips Intervention
Participants will be asked to consume 42g of peanuts with skin daily for 4 weeks.
Following a 4-week washout, the participant will then be asked to consume 45g of corn chips daily for 4 weeks.
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42g roasted salted peanuts with skins consumed daily
Corn chips (45g)
|
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Experimental: Corn chip Intervention followed by Peanut Intervention
The participant will be asked to consume 45g of corn chips daily for 4 weeks.
Following a 4-week washout, the participant will be then asked to consume 42g of peanuts with skin daily for 4 weeks.
|
42g roasted salted peanuts with skins consumed daily
Corn chips (45g)
|
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Change in psychosocial stress over time
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
The PSS-10 will be administered 4 times during the study. The 10-item Perceived Stress Scale (PSS-10) is a validated, standard instrument used to assess subjective perceptions of chronic psychological stress (i.e., excessive demands, insufficient coping resources, and a perceived lack of control). The minimum score is 0 and the maximum score is 40. Higher scores indicate greater severity of psychosocial stress. |
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
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Change from baseline of allostatic load following dietary interventions
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Before and after each intervention, cumulative physiological stress load, also referred to as allostatic load (AL), will be calculated.
AL will be derived from 12-h overnight urinary cortisol, norepinephrine, and epinephrine levels (corrected for urinary creatinine levels), resting systolic and diastolic blood pressure, and overnight fasted waist-to-hip ratio, fasting serum levels of high-sensitivity C-reactive protein (hs-CRP), cholesterol, HDL-cholesterol, fasting plasma dehydroepiandrosterone sulfate (DHEA-S), and whole blood glycohemoglobin (HbA1c).
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
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Change from baseline of monocyte gene expression
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Total monocytes isolated from human peripheral blood mononuclear cells (PBMCs) at baseline and post-intervention will be collected, and their global gene expression will be analyzed by ribonucleic acid (RNA) sequencing.
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
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Change from baseline of cytokine and interferon production in PBMCs
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Monocytes isolated from human peripheral blood mononuclear cells (PBMCs) will be challenged with and without toll-like receptor ligands to assess cytokine and interferon production in low- and high-stress subjects at baseline and after intervention.
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
|
Change from baseline of cytotoxicity of peripheral natural killer cells
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
The cytotoxicity of peripheral natural killer (NK) cells isolated from subject's peripheral blood mononuclear cells (PBMCs) of low- and high-stress individuals at baseline and after intervention will be assessed using an ex vivo cytotoxicity assay with human erythroleukemic cell line (K562) target cells.
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
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Change from baseline of interferon-gamma
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Interferon-gamma (IFN-γ) will be measured before and after each intervention using the V-PLEX Human Biomarker 40-Plex Kit from Meso Scale Discovery
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
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Change from baseline of tumor necrosis factors alpha and beta
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Tumor necrosis factors alpha and beta (TNF-α, TNF-β) will be measured before and after each intervention using the V-PLEX Human Biomarker 40-Plex Kit from Meso Scale Discovery
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
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Change from baseline of interleukins
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
A panel of interleukins: (IL) (IL-1α, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-7, IL-8, IL-10, IL-12/IL-23p40, IL-12p70, IL-13, IL-15, IL-16, IL-17A) will be measured before and after each intervention using the V-PLEX Human Biomarker 40-Plex Kit from Meso Scale Discovery
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Baseline, 4 weeks, 8 weeks, and 12 weeks
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Change from baseline of fibroblast growth factor
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Fibroblast growth factor (FGF) will be measured before and after each intervention using the V-PLEX Human Biomarker 40-Plex Kit from Meso Scale Discovery
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
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Change from baseline of granulocyte-macrophage colony-stimulating factor
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Granulocyte-macrophage colony-stimulating factor (GM-CSF) will be measured before and after each intervention using the V-PLEX Human Biomarker 40-Plex Kit from Meso Scale Discovery:
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Baseline, 4 weeks, 8 weeks, and 12 weeks
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Change from baseline of thymus and activation-regulated chemokine
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Thymus and activation-regulated chemokine (TARC).
will be measured before and after each intervention using the V-PLEX Human Biomarker 40-Plex Kit from Meso Scale Discovery
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
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Change from baseline of macrophage inflammatory proteins-1 alpha and beta
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Macrophage inflammatory proteins-1 alpha and beta (MIP-1α, MIP-1β) will be measured before and after each intervention using the V-PLEX Human Biomarker 40-Plex Kit from Meso Scale Discovery
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
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Change from baseline of macrophage-derived chemokine
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Macrophage-derived chemokine (MDC) will be measured before and after each intervention using the V-PLEX Human Biomarker 40-Plex Kit from Meso Scale Discovery
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
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Change from baseline of monocyte chemoattractant proteins-1 and -4
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
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Monocyte chemoattractant proteins-1 and -4 (MCP-1, MCP-4) will be measured before and after each intervention using the V-PLEX Human Biomarker 40-Plex Kit from Meso Scale Discovery
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Baseline, 4 weeks, 8 weeks, and 12 weeks
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Change from baseline of interferon gamma-induced protein-10
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Interferon gamma-induced protein-10 (IP-10) will be measured before and after each intervention using the V-PLEX Human Biomarker 40-Plex Kit from Meso Scale Discovery
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
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Change from baseline of eotaxin and eotaxin-3
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
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Eotaxin and eotaxin-3 will be measured before and after each intervention using the V-PLEX Human Biomarker 40-Plex Kit from Meso Scale Discovery
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Baseline, 4 weeks, 8 weeks, and 12 weeks
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Change from baseline of C-reactive protein
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
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C-reactive protein (CRP) will be measured before and after each intervention using the V-PLEX Human Biomarker 40-Plex Kit from Meso Scale Discovery
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Baseline, 4 weeks, 8 weeks, and 12 weeks
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Change from baseline of intercellular adhesion molecule-1
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
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Intercellular adhesion molecule-1 (ICAM-1) will be measured before and after each intervention using the V-PLEX Human Biomarker 40-Plex Kit from Meso Scale Discovery
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Baseline, 4 weeks, 8 weeks, and 12 weeks
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Change from baseline of placental growth factor
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
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Placental growth factor (PlGF) will be measured before and after each intervention using the V-PLEX Human Biomarker 40-Plex Kit from Meso Scale Discovery
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Baseline, 4 weeks, 8 weeks, and 12 weeks
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Change from baseline of serum amyloid A
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
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Serum amyloid A (SAA) will be measured before and after each intervention using the V-PLEX Human Biomarker 40-Plex Kit from Meso Scale Discovery
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Baseline, 4 weeks, 8 weeks, and 12 weeks
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Change from baseline of angiopoietin-1 receptor
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
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Angiopoietin-1 receptor (Tie-2) will be measured before and after each intervention using the V-PLEX Human Biomarker 40-Plex Kit from Meso Scale Discovery
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Baseline, 4 weeks, 8 weeks, and 12 weeks
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Change from baseline of vascular cell adhesion molecule-1
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
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Vascular cell adhesion molecule-1 (VCAM-1) will be measured before and after each intervention using the V-PLEX Human Biomarker 40-Plex Kit from Meso Scale Discovery
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Baseline, 4 weeks, 8 weeks, and 12 weeks
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Change from baseline of vascular endothelial growth factors A, C, and D
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
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Vascular endothelial growth factors A, C, and D (VEGF-A, VEGF-C, VEGF-D) will be measured before and after each intervention using the V-PLEX Human Biomarker 40-Plex Kit from Meso Scale Discovery
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Baseline, 4 weeks, 8 weeks, and 12 weeks
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Change from baseline of vascular endothelial growth factor receptor-1
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
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Vascular endothelial growth factor receptor-1 (VEGFR-1/Flt-1) will be measured before and after each intervention using the V-PLEX Human Biomarker 40-Plex Kit from Meso Scale Discovery
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Baseline, 4 weeks, 8 weeks, and 12 weeks
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Change from baseline of monocyte phenotype
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, 12 weeks
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Classical monocytes, intermediate monocytes, and non-classical monocytes, will be identified by leukocyte common antigen (CD45+), Low-density lipoprotein receptor-related protein 1 (CD91+), cluster of differentiation 14 (CD14), cluster of differentiation 16 (CD16), and cluster of differentiation 3 (lin-CD3)/cluster of differentiation 66b (CD66b)/neural cell adhesion molecule (CD56)/cluster of differentiation 19 (CD19) using flow cytometry.
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Baseline, 4 weeks, 8 weeks, 12 weeks
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Change from baseline of monocyte functional profile
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, 12 weeks
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Cellular activation of classical monocytes, intermediate monocytes, and non-classical monocytes will be assessed by expression of cluster of differentiation 11b (CD11b) and cluster of differentiation 163 (CD163).
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Baseline, 4 weeks, 8 weeks, 12 weeks
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Change from baseline of natural killer cell phenotype
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, 12 weeks
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Natural killer (NK) cells will be identified by CD45+, cluster of differentiation 56+ (CD56+), and lin-CD3/CD66b/CD14/CD19 using flow cytometry.
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Baseline, 4 weeks, 8 weeks, 12 weeks
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Change from baseline of natural killer cell functional profile
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, 12 weeks
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Natural killer (NK) cell maturation status and cytotoxic potential via CD16, cluster of differentiation 57 (CD57), killer cell lectin-like receptor K1 (NKG2D), and cluster of differentiation 159 (NKG2A) will be analyzed using flow cytometry.
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Baseline, 4 weeks, 8 weeks, 12 weeks
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Changes in stool consistency
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Participants will provide stool samples at 4 times throughout the study.
Stool samples will be used to confirm the stool consistency reported by the study subject.
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Baseline, 4 weeks, 8 weeks, and 12 weeks
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Changes in stool metrics
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
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Participants will provide stool samples at 4 times throughout the study.
Stool samples will be used to determine the whole stool weight.
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Baseline, 4 weeks, 8 weeks, and 12 weeks
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Changes in bowel movement frequency
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
During the week prior to each intervention and the final week of each intervention, participants will maintain a stool diary for recording frequency of bowel movements.
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Baseline, 4 weeks, 8 weeks, and 12 weeks
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Changes in Gastrointestinal (GI) symptoms
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
During the week prior to each intervention and the final week of each intervention, a short GI Symptoms Questionnaire will be administered via Qualtrics to record occurrence of gastric symptoms.
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
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Changes in gut microbial diversity
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Participants will provide stool samples at 4 times throughout the study.
Stool samples will be used to determine the microbial community composition by 16-subunit ribosomal ribonucleic acid (16S rRNA) amplicon sequence analysis.
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Baseline, 4 weeks, 8 weeks, and 12 weeks
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Changes in stool short chain fatty acids
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Participants will provide stool samples at 4 times throughout the study.
Stool samples will be used to measure the amount of fecal short chain fatty acids (SCFAs).
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
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Changes in gut inflammatory markers
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Participants will provide stool samples at 4 times throughout the study.
Stool samples will be used to measure the inflammatory marker, fecal calprotectin.
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
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Change in salivary cortisol
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
To assess waking and diurnal cortisol fluctuations, saliva will be collected at home at selected times upon waking and before bedtime. The waking saliva sample must be collected within 10-15 minutes of waking. Following the waking sample, participants will be asked to collect additional saliva samples at 15, 30, 45, and 60 minutes after the waking sample, as well as a saliva sample before bedtime. In total, participants will return 24 saliva samples (6 per visit) throughout the study. |
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
|
Change in urinary cortisol levels
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Before and after each intervention, 12-hour overnight urinary cortisol will be measured.
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
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Change in urinary epinephrine levels
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Before and after each intervention, 12-hour overnight urinary epinephrine levels will be measured.
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
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Change in urinary norepinephrine levels
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Before and after each intervention, 12-hour overnight urinary norepinephrine levels will be measured.
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
|
Change in urinary creatinine levels
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Before and after each intervention, 12-hour overnight urinary creatinine levels will be measured.
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
|
Change in resting blood pressure
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Research team will collect resting blood pressure (systolic and diastolic) in mmHg (millimeters of mercury).
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
|
Change in dietary intake
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Dietary intake will be assessed by using the Automated Self-Administered 24-hour (ASA24®) dietary assessment tool, a web-based tool that enables multiple, automatically coded, self-administered 24-hour recalls.
Three dietary recalls will be conducted in the week preceding and the final week of each intervention period, for a total of 12, 24-hour dietary recalls.
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Baseline, 4 weeks, 8 weeks, and 12 weeks
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Change in Body Weight
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Research team will collect weight in kg.
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Baseline, 4 weeks, 8 weeks, and 12 weeks
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Change in white blood cell count
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
White blood cell (WBC) count will be measured by a DxH 520 Hematology analyzer.
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
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Change in lymphocyte count
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Lymphocyte (LY) count will be measured by a DxH 520 Hematology analyzer.
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Baseline, 4 weeks, 8 weeks, and 12 weeks
|
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Change in monocyte count
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Monocyte (MO) count will be measured by a DxH 520 Hematology analyzer.
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Baseline, 4 weeks, 8 weeks, and 12 weeks
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Change in neutrophil granulocyte count
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Neutrophil granulocyte (NE) count will be measured by a DxH 520 Hematology analyzer.
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Baseline, 4 weeks, 8 weeks, and 12 weeks
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Change in eosinophil count
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Eosinophil (EO) count will be measured by a DxH 520 Hematology analyzer.
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Baseline, 4 weeks, 8 weeks, and 12 weeks
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Change in basophil count
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Basophil (BA) count will be measured by a DxH 520 Hematology analyzer.
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Baseline, 4 weeks, 8 weeks, and 12 weeks
|
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Change in levels of triglycerides
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Lipid-related markers including triglycerides will be measured by auto-analyzer, Cobas Integra 400+ instrument.
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
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Change in levels of total cholesterol
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Lipid-related markers including total cholesterol will be measured by auto-analyzer, Cobas Integra 400+ instrument.
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
|
Change in levels of HDL-cholesterol
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Lipid-related markers including HDL-cholesterol (HDL-C) will be measured by auto-analyzer, Cobas Integra 400+ instrument.
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
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Change in levels of LDL-cholesterol
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Lipid-related markers including LDL-cholesterol (LDL-C) will be measured by auto-analyzer, Cobas Integra 400+ instrument.
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
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Change in levels of glucose
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Plasma glucose will be measured by auto-analyzer, Cobas Integra 400+ instrument.
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
|
Changes in gut transit time
Periodo de tiempo: Baseline, 4 weeks, 8 weeks, and 12 weeks
|
During the week prior to each intervention and the final week of each intervention, participants will consume a muffin containing blue food dye.
Participants will log the date and time of consumption, and will log each bowel movement until stool color changes.
This will be used to measure gut transit time.
|
Baseline, 4 weeks, 8 weeks, and 12 weeks
|
Colaboradores e Investigadores
Aquí es donde encontrará personas y organizaciones involucradas en este estudio.
Patrocinador
Investigadores
- Investigador principal: Ryan Snodgrass, PhD, United States Department of Agriculture - Western Human Nutrition Research Center
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)
1 de septiembre de 2026
Finalización primaria (Estimado)
1 de agosto de 2028
Finalización del estudio (Estimado)
1 de agosto de 2028
Fechas de registro del estudio
Enviado por primera vez
4 de agosto de 2025
Primero enviado que cumplió con los criterios de control de calidad
24 de julio de 2026
Publicado por primera vez (Actual)
29 de julio de 2026
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
11 de septiembre de 2026
Última actualización enviada que cumplió con los criterios de control de calidad
8 de septiembre de 2026
Última verificación
1 de septiembre de 2026
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- 2280324
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
NO
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
producto fabricado y exportado desde los EE. UU.
Sí
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. .