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SarcopeniaNCT02116166

Skeletal Muscle Inflammation, Oxidative Stress and DNA Repair in Age-Related Sarcopenia

An observational study of Sarcopenia, run by University of Florida at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this research study is to investigate how and why the loss of muscle mass occurs with aging. Tissue collected from young subjects will be compared to previously collected tissue from elderly subjects, as well as previously collected data on muscle function/mass to further investigate cellular and… Read more about this study

Who is it for?
Ages 20 to 35 yearsHealthy volunteers can take part
Conditions the study is for
Sarcopenia
How many people
10 participants
Where
1 siteUnited States
Study dates
May 2014to Jul 2016
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 to 35 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Study population: Young (age 20-35 years; N =10)

Who may be able to join

  • males and females aged 20-35.
  • willing and able to give informed consent.

Who cannot join

  • High physical activity level (i.e., the subject has spent greater than 300 minutes per week in the past 2 month performing structured physical activity, such as exercising at a gym and/or weight training)
  • Active treatment for cancer or history of cancer in the past 3 years
  • Congestive heart failure NYHA Class III or IV
  • Previous stroke with upper and/or lower extremities involvement within the last 6 months
  • Peripheral vascular disease Fontaine Class III/IV
  • History of life-threatening cardiac arrhythmias, stroke, severe Parkinson's disease or severe neurological disorders likely to interfere with physical function
Show all 21Show fewer
  • Renal disease requiring dialysis
  • Lung disease requiring steroids
  • Lower extremity amputation
  • Complicated diabetes
  • Life-threatening illnesses with an estimated life expectancy less than 1 year
  • Anticoagulant therapy (aspirin use is allowed, but participants will be asked to stop taking it 48 hours prior to muscle biopsy)
  • Involved in active weight loss > 5 kg in prior 3 months
  • Pregnancy (determined by a pregnancy test)
  • Lidocaine allergy
  • Temporary exclusion criteria:
  • Recent bacterial infection (< 2 weeks)
  • Acute febrile illness in previous 2 months
  • High blood pressure (i.e., BP ≥ 160/90 mm Hg) at the visit (subject will be referred to his/her physician and reevaluated after appropriated therapy being instituted)
  • Taking aspirin within 48 hours preceding biopsy
  • Performing exercise 48 hours prior to the biopsy.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Florida

    Gainesville, Florida, 32611

Other trials in United States

About this study

Official title: Claude D. Pepper Older Americans Independence Center (OAIC); Skeletal Muscle Inflammation, Oxidative Stress and DNA Repair in Age-Related Sarcopenia

The purpose of this research study is to investigate how and why the loss of muscle mass occurs with aging. Tissue collected from young subjects will be compared to previously collected tissue from elderly subjects, as well as previously collected data on muscle function/mass to further investigate cellular and molecular pathways that have recently been shown to be important for the aging process in muscle. The Principal Investigator (PI) and the study team will look for specific proteins (called biomarkers) that can be present in the muscle tissue in various amounts in different individuals. This study will increase the investigators understanding of the processes of muscle atrophy (loss of mass) and functional loss at older age and will help to find new treatments and interventions aimed at improving the quality of life and independence of America's rapidly expanding elderly population.

Read the detailed description

For this project, we will continue to gain mechanistic insight into age-related muscle loss and to maximize the utility of the tissue we previously collected (Claude D. Pepper Older Americans Independence Center (OAIC); Skeletal muscle apoptosis and physical performance; Oxidative RNA/DNA damage and repair in aged human muscle (Developmental Study), IRB # 429-2005) and we will collect muscle tissue from additional young subjects. This project will specifically test whether inflammatory pathways and DNA repair mechanisms are altered and/or involved in the development of sarcopenia and the related decline in physical function observed in the elderly.

Aim 1. We will further determine the association of skeletal muscle mass and function with intramuscular mediators of inflammation. Focus will be on inflammatory proteins (e.g.,TNF, TNFR1, pIkBα, pIKKb, CCL2, ZIP14, ZnT2) and genes (e.g., IL-6, TNFa, IL11β, IL-8, CCL2, CCR2, NFkB p50, NFkB p65, ZIP14) and metals (e.g., copper, zinc, and iron). We hypothesize that the majority of these markers will be upregulated in muscle from older individuals when compared to young.

Aim 2. For the first time, we will determine the age related effect of DNA damage on pattern and dynamics of mRNA translation in human muscle tissue by genome wide analysis using "ribosome profiling." The recently developed deep-sequencing techniques of RNA-seq and "ribosome profiling" will be implemented on human muscle. This will allow us to explore on a genomic scale and at single-nucleotide resolution, the effect of age-related DNA damage on transcriptional fidelity and translational kinetics. Importantly, for the first time, these phenotype changes will be compared with genome mapping of DNA damage, a major factor driving mammalian aging. We hypothesize that older muscle has greater modification of translational patterns compared to young muscle.

Muscle tissue samples remaining following the completion of this research will be stored and used in the future to explore new avenues of research related to aging.

Conditions
Sarcopenia
Keywords
aging, sarcopenia, mitochondria, skeletal muscle, inflammation
Medical subject headings
Sarcopenia, Inflammation

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT02116166
Study groupRoleWhat they receive
YoungYoung (20-35 years old)
OldOlder (70-99 years old)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Tumor Necrosis Factor alpha (TNF-alpha)

    Inflammation marker; measured in muscle biopsy specimens.

    Measured: baseline

  2. tumor-necrosis factor receptor-1 (TNFR1)

    Inflammation marker; measured in muscle biopsy specimens.

    Measured: baseline

  3. Phospho-Inhibitory Subunit Of NF-KBα (pIkBα)

    Inflammation marker; measured in muscle biopsy specimens.

    Measured: baseline

  4. Chemokine (C-C motif) ligand 2 (CCL2)

    Inflammation marker; measured in muscle biopsy specimens.

    Measured: baseline

  5. zinc transporter (ZIP) 14

    Inflammation marker; measured in muscle biopsy specimens.

    Measured: baseline

  6. Interleukin 6 (IL-6)

    Inflammation marker; measured in muscle biopsy specimens.

    Measured: baseline

  7. Interleukin (IL) 11β

    Inflammation marker; measured in muscle biopsy specimens.

    Measured: baseline

  8. Interleukin 8 (IL-8)

    Inflammation marker; measured in muscle biopsy specimens.

    Measured: baseline

  9. C-C chemokine receptor type 2 (CCR2)

    Inflammation marker; measured in muscle biopsy specimens.

    Measured: baseline

  10. zinc transporter 14 (ZIP14)

    Inflammation marker; measured in muscle biopsy specimens.

    Measured: baseline

  11. copper

    metals; measured in muscle biopsy specimens.

    Measured: baseline

  12. zinc

    metals; measured in muscle biopsy specimens.

    Measured: baseline

  13. iron

    metals; measured in muscle biopsy specimens.

    Measured: baseline

  14. ribosome profiling

    DNA damage on pattern and dynamics of mRNA translation in human muscle tissue; measured in muscle biopsy specimens.

    Measured: baseline

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted16 Apr 2014 (estimated)
  2. Study startMay 2014
  3. Primary completionJul 2016
  4. Study completionJul 2016

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Cross-sectional
Enrolment
10 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02116166
Sponsor's protocol ID
201300790-N
Other IDs
2P30AG028740
Status last verified
Apr 2018
First submitted
14 Apr 2014
Last updated
5 Apr 2018
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

An observational study of Sarcopenia, run by University of Florida at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 21 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 5 Apr 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Tumor Necrosis Factor alpha (TNF-alpha) (time frame: baseline). The study lists 14 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Apr 2018.

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