Abstract

Tamoxifen, a nonsteroidal antiestrogen drug, is used in the treatment of breast cancer. With its antiestrogen properties, it binds to estrogen receptors thus blocking estrogen dependent tumor growth. Estrogen, mainly the lack of, is instrumental in the cause of osteoporosis. At menopause, the lack of estrogen causes an increase in bone loss. Tamoxifen in a hypoestrogenic environment, post menopause, appears to have estrogen like effects and inhibits bone resorption. In vitro studies, however, demonstrate that Tamoxifen in the presence of estrogen actually inhibits the beneficial effects of estrogen on bone metabolism. This study will help to evaluate the beneficial effects of estrogen on bone metabolism. Monocytes will be isolated from whole blood and placed in culture. While in culture we will study the cytokines (substance released from inflammatory cells such as monocytes) which modulate bone resorption. These cytokines may be regulated by estrogen and/or Tamoxifen.

  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 #
6282248
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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