This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. Relative and absolute amounts of body fat are critical for the onset of puberty and subsequent development and maintenance of menstrual cyclicity, ovulation and ultimately fertility. The need for a positive energy balance to ensure reproductive competency and maturity has been supported by studies in both animals and humans. Physical training and increased energy expenditure can induce a decrease of adiposity and a consequent reduction in reproductive competency of otherwise healthy young women. We are using the model of the post-pubertal athlete of normal weight to test the hypothesis that relative fatness is critical to the maintenance of the integrity of the reproductive axis. The experimental design consists of collecting the following: 1) Body composition by DEXA scan 2) VO2 max determination by treadmill 3) Detailed dietary analysis and 4) GCRC admission for 24 hour high frequency blood sampling of gonadotropins, growth hormone cortisol and leptin. In phase 1, we have collected a reference database of over 50 healthy young women in various states of fitness. Now in Phase 2, we now are starting an intervention phase where sedentary but otherwise healthy young women are trained and enrolled in hormonal studies pre and post-training. Future research directions will apply the same research paradigm to the study of insulin-resistant states in adolescent females such polycystic ovary disease with comparison between the effects of physical training, diet and insulin sensitizing agents. This work will help identify markers and cofounders that will ultimately be incorporated in the design of very large epidemiological studies.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
General Clinical Research Centers Program (M01)
Project #
2M01RR000042-46
Application #
7376489
Study Section
Special Emphasis Panel (ZRR1-CR-8 (02))
Project Start
2006-04-05
Project End
2007-02-28
Budget Start
2006-04-05
Budget End
2007-02-28
Support Year
46
Fiscal Year
2006
Total Cost
$91,975
Indirect Cost
Name
University of Michigan Ann Arbor
Department
Internal Medicine/Medicine
Type
Schools of Medicine
DUNS #
073133571
City
Ann Arbor
State
MI
Country
United States
Zip Code
48109
Robarge, Jason D; Desta, Zereunesay; Nguyen, Anne T et al. (2017) Effects of exemestane and letrozole therapy on plasma concentrations of estrogens in a randomized trial of postmenopausal women with breast cancer. Breast Cancer Res Treat 161:453-461
Crane, Natania A; Jenkins, Lisanne M; Bhaumik, Runa et al. (2017) Multidimensional prediction of treatment response to antidepressants with cognitive control and functional MRI. Brain 140:472-486
Hertz, Daniel L; Speth, Kelly A; Kidwell, Kelley M et al. (2017) Variable aromatase inhibitor plasma concentrations do not correlate with circulating estrogen concentrations in post-menopausal breast cancer patients. Breast Cancer Res Treat 165:659-668
Hertz, D L; Kidwell, K M; Seewald, N J et al. (2017) Polymorphisms in drug-metabolizing enzymes and steady-state exemestane concentration in postmenopausal patients with breast cancer. Pharmacogenomics J 17:521-527
Kadakia, Kunal C; Kidwell, Kelley M; Seewald, Nicholas J et al. (2017) Prospective assessment of patient-reported outcomes and estradiol and drug concentrations in patients experiencing toxicity from adjuvant aromatase inhibitors. Breast Cancer Res Treat 164:411-419
Spengler, Erin K; Kleiner, David E; Fontana, Robert J (2017) Vemurafenib-induced granulomatous hepatitis. Hepatology 65:745-748
Heidemann, Lauren; Law, James; Fontana, Robert J (2017) A Text Searching Tool to Identify Patients with Idiosyncratic Drug-Induced Liver Injury. Dig Dis Sci 62:615-625
Law, Ian H; Alam, Osman; Bove, Edward L et al. (2016) Follow-Up of a Prospective Surgical Strategy to Prevent Intra-Atrial Reentrant Tachycardia After the Fontan Operation. Circ Arrhythm Electrophysiol 9:
Schrepf, Andrew; Harper, Daniel E; Harte, Steven E et al. (2016) Endogenous opioidergic dysregulation of pain in fibromyalgia: a PET and fMRI study. Pain 157:2217-2225
As-Sanie, Sawsan; Kim, Jieun; Schmidt-Wilcke, Tobias et al. (2016) Functional Connectivity is Associated With Altered Brain Chemistry in Women With Endometriosis-Associated Chronic Pelvic Pain. J Pain 17:1-13

Showing the most recent 10 out of 1380 publications