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Muscle Signaling and Estrogen:
The MUSE Study
The MUSE study will examine the effects of the female sex hormone estrogen
on changes in muscle due to lack of use. The goal of this research study
is to find out if estrogen helps protect against muscle loss when the
muscle is used very little.
Women in the MUSE study will be asked to wear a knee brace on the left leg
for 9 days to immobilize the leg. Women will also receive daily injections
of a hormone-suppressing drug for 13 days. This drug will cause blood sex
hormone levels to decrease to postmenopausal levels. At the same time,
participants will be randomly assigned to wear either an estrogen or a
placebo (inactive substance) skin patch for 13 days. Neither the women in
the study nor the study team will know if the patch is estrogen or placebo.
Three muscle biopsies will be performed; one prior to immobilization, one
directly following immobilization, and one 4 days after the immobilization
period. This will allow us to determine the effect that estrogen has on
muscle tissue following a period of disuse.
Qualifications to volunteer:
- Healthy women between the age of 21-40 years
- Regular menstrual cycles
- No current use of hormonal contraceptives
- Physically active but not a competitive athlete
- Willing to wear a knee brace and use crutches for 9 days
Benefits for study volunteers include:
- Measurement of body composition and bone density
- Fitness testing
- Compensation will be provided for your time
The Principal Investigator for the MUSE study is
Catherine Jankowski, PhD. For more information
please contact Ellie Gibbons at 720-848-6408 or Ellie.Gibbons@ucdenver.edu.
This study is funded by the UCD Department of Medicine and has been approved
by the Colorado Multiple Institutional Review Board. (COMIRB #07-0379)
A Familiar IMAGE Face
Many of you will remember the winning smile and quick wit of Angie Moquin, the
very first IMAGE professional research assistant. Angie was deeply involved
with the AFTER and BONE studies and supervised exercise as recently as a year
ago while working on her doctorate of physical therapy degree. We are proud
to announce that Angie graduated from the University of Colorado Physical
Therapy Program in May, 2009, and is now Dr. Angie (Angela) Moquin, MS, PT,
DPT. She will begin working as a physical therapist in Nevada later this
summer. Angie has a special interest in helping people with artificial limbs
to not only rehabilitate but also to accomplish personal performance goals.
Kudos to Angie!
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Sex Hormones,
Coristol, and
Adiposity
Loss via
Exercise
Ever wonder why women gain abdominal fat
after menopause? Is your body changing without your consent?
If so, then keep reading to learn more about the SCALE study!
Abdominal fat is associated with increased risk for heart disease and adult
onset diabetes. Cortisol, a stress hormone, is known to increase abdominal fat.
The rate of fat gain in women, especially in the abdominal area, increases
after menopause. Why this occurs is not known. One possibility is that the
loss of estrogen at menopause may increase abdominal fat by changing cortisol metabolism.
SCALE is a research study that will determine the separate effects of estrogen and weight
loss on the stress hormone cortisol. The findings from this study may lead to the
development of ways to help decrease abdominal fat gain after menopause.
Eligible participants are healthy, nonsmoking, sedentary, postmenopausal women
aged 40-59 who do not currently take hormone therapy, are willing to wear an
estrogen or placebo patch for 1 month, and are able to take part in a 4 month
supervised aerobic exercise program designed to reduce body weight by at least 5%.
Wendolyn S. Gozansky, MD, MPH is the Principal Investigator for SCALE (COMIRB #07-0278).
For more information about this study funded by the National Institutes of Health,
please contact Kathryn Cardwell at 720-848-6418 or
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Our type of research would not be possible without the dedication of our
research volunteers. We sincerely thank you for giving us your commitment,
time, and energy.
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The IMAGE Staff
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