Effects of Beef Consumption on Skeletal Muscle Protein Homeostasis and Inflammatory Factors in Pre- and Postmenopausal Females
Study Details
Study Description
Brief Summary
This will be a randomized study to determine if animal-based protein-rich food sources can stimulate greater muscle protein turnover and whole-body protein balance and reduce skeletal muscle inflammatory markers in postmenopausal women compared to vegetarian base protein-rich foods.
Condition or Disease | Intervention/Treatment | Phase |
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N/A |
Detailed Description
A randomized cross-sectional controlled trial will be conducted to quantify whole-body and muscle protein turnover and skeletal muscle inflammation following 5-days of consumption of either beef or isonitrogenous plant-based sources of protein in normal/overweight and obese post-menopausal females. A premenopausal normal/overweight group consuming beef containing study meals will also be recruited to serve as a healthy control comparison.
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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Experimental: postmenopausal with normal/overweight BMI that eats primarily beef as their protein source
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Other: meals consisting of primarily animal protein sources
an omnivorous diet
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Experimental: postmenopausal with normal/overweight BMI that eats vegetables as their protein source
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Other: meals consisting of plant protein sources
an herbivorous diet
|
Experimental: postmenopausal with obese BMI that eats primarily beef as their protein source in study meals
|
Other: meals consisting of primarily animal protein sources
an omnivorous diet
|
Experimental: postmenopausal with obese BMI that eats vegetables as their protein source in study meals
|
Other: meals consisting of plant protein sources
an herbivorous diet
|
Active Comparator: premenopausal with normal/overweight BMI that eats primarily beef as their protein source
|
Other: meals consisting of primarily animal protein sources
an omnivorous diet
|
Outcome Measures
Primary Outcome Measures
- Net change in muscle protein synthesis (% per day). [Study meals are eaten for 5 consecutive days.]
Change in net muscle protein synthesis between groups.
Eligibility Criteria
Criteria
Inclusion Criteria:
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Postmenopausal women ages 50-65 (absence of menstruation for at least 12 months).
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Premenopausal women ages 35-45 (presence of normal monthly menstruation for the past 12 months).
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BMI of 20.0 - 34.9 kg/m2.
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COVID-19 negative and/or asymptomatic
Exclusion Criteria:
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Any substantial musculoskeletal injuries/diseases that have limited daily activities in the past month.
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Unable to stop the use of anti-inflammatory drugs for the week prior to and during study.
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Diagnosed metabolic or hormonal disease (i.e., renal, cardiovascular, thyroid, polycystic ovary syndrome, or type I/II diabetes mellitus).
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Currently pregnant.
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Gave birth or was lactating within previous 12 months.
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Undergone gastric bypass/bariatric surgery.
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Clinically significant weight gain or loss (>5% change) in the last 12 months.
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Consuming metabolism-altering drugs or medications (i.e., corticosteroids, stimulants, insulin, thyroid medication).
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Unable or unwilling to suspend anti-clotting medications including aspirin use for 5 days prior to Visit 4.
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Participating in >200 minutes/week of vigorous exercise and/or >4 days/week of resistance training.
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Unwilling to fast overnight.
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Surgical menopause.
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Having undergone hormone replacement therapy in the last 12 months.
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
---|---|---|---|---|---|
1 | Center of Translational Research in Aging and Longevity | Little Rock | Arkansas | United States | 72205 |
Sponsors and Collaborators
- University of Arkansas
Investigators
None specified.Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- 275449