Abstract

This study is aimed at determining if premenopausal women taking Tamoxifen are at increased risk for developing osteoporosis. The study will use human monocyte cultures derived from cells obtained from volunteers of the OB/GYN and endocrine clinics. Tamoxifen may have different effects on bone resorption depending on the estrogen environment. After menopause, natural or surgical, it appears to inhibit bone resorption. However, in vitro studies in the presence of estrogen indicate that Tamoxifen inhibits the beneficial effects of estrogen on bone metabolism. This in vitro monocyte culture study will evaluate the effect of Tamoxifen on the production of two substances, the cytokines interleukin 1 B and interleukin - 6, produced during bone metabolism. Specifically, it will be determined if Tamoxifen alone will decrease IL-I mRNA and protein productions in a dose responsive manner using a reverse transcriptase-polymerase chain reaction and if Tamoxifen in the presence of estradiol will negate the effect of estradiol on IL-I mRNA and protein production. IL-I will be measured by an enzyme linked immunosorbent assay.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
General Clinical Research Centers Program (M01)
Project #
5M01RR005096-09
Application #
6282249
Study Section
Project Start
1997-12-01
Project End
1999-06-30
Budget Start
1997-10-01
Budget End
1998-09-30
Support Year
9
Fiscal Year
1998
Total Cost
Indirect Cost

  Institution

Name
Tulane University
Department
Type
DUNS #
City
New Orleans
State
LA
Country
United States
Zip Code
70118

  Publications

Allegrezza, Michael J; Rutkowski, Melanie R; Stephen, Tom L et al. (2016) Trametinib Drives T-cell-Dependent Control of KRAS-Mutated Tumors by Inhibiting Pathological Myelopoiesis. Cancer Res 76:6253-6265
Drerup, Justin M; Liu, Yang; Padron, Alvaro S et al. (2015) Immunotherapy for ovarian cancer. Curr Treat Options Oncol 16:317
Chyun, Deborah A; Wackers, Frans J Th; Inzucchi, Silvio E et al. (2015) Autonomic dysfunction independently predicts poor cardiovascular outcomes in asymptomatic individuals with type 2 diabetes in the DIAD study. SAGE Open Med 3:2050312114568476
Rahman, Mahboob; Xie, Dawei; Feldman, Harold I et al. (2014) Association between chronic kidney disease progression and cardiovascular disease: results from the CRIC Study. Am J Nephrol 40:399-407
Kempen, John H; Sugar, Elizabeth A; Varma, Rohit et al. (2014) Risk of cataract among subjects with acquired immune deficiency syndrome free of ocular opportunistic infections. Ophthalmology 121:2317-24
Ricardo, Ana C; Yang, Wei; Lora, Claudia M et al. (2014) Limited health literacy is associated with low glomerular filtration in the Chronic Renal Insufficiency Cohort (CRIC) study. Clin Nephrol 81:30-7
Kozak, Igor; Vaidya, Vijay; Van Natta, Mark L et al. (2014) The prevalence and incidence of epiretinal membranes in eyes with inactive extramacular CMV retinitis. Invest Ophthalmol Vis Sci 55:4304-12
Wing, Maria R; Devaney, Joseph M; Joffe, Marshall M et al. (2014) DNA methylation profile associated with rapid decline in kidney function: findings from the CRIC study. Nephrol Dial Transplant 29:864-72
Mariani, Laura H; White, Matthew T; Shults, Justine et al. (2014) Increasing use of vitamin D supplementation in the chronic renal insufficiency cohort study. J Ren Nutr 24:186-93
Wing, Maria R; Yang, Wei; Teal, Valerie et al. (2014) Race modifies the association between adiposity and inflammation in patients with chronic kidney disease: findings from the chronic renal insufficiency cohort study. Obesity (Silver Spring) 22:1359-66

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