Results 11 to 20 of about 125,474 (196)

Identification of influential factors on ovarian responsiveness with tamoxifen in type-2 WHO anovulatory patients

open access: yesJournal of Mazandaran University of Medical Sciences, 2005
Background and purpose: Chronic anovulation is a common cause of infertility in women. Most women with chronic anoulation have irregular menstural cycles and normal serum FSH concentration s(WHO-type 2).finding out influential factors on ovarian ...
T. Madani   +3 more
doaj   +1 more source

Tamoxifen and the uterus [PDF]

open access: yesBMJ, 1994
The effects of tamoxifen on the endometrium have caused concern since the late 1980s,1,2 and clear evidence of endometrial changes has now emerged from three studies in postmenopausal women - one case-control study of breast cancer3 and two randomised controlled trials, one in women with early breast cancer4 and one in healthy women with a family ...
P, Neven   +4 more
openaire   +5 more sources

Microarray analysis of tamoxifen resistance in breast cancer. [PDF]

open access: yes, 2009
PhDTamoxifen remains a widely used hormone therapy for pre and postmenopausal women with hormone receptor positive breast cancer in both adjuvant and metastatic disease settings. Resistance to this well tolerated and cost-effective drug limits its use.
Moss, Charlotte
core   +4 more sources

Molecular gene expression and genome wide profiling in tamoxifen-resistant breast cancer. [PDF]

open access: yes, 2010
PhDOestrogen receptor positive (ER+) breast cancers (BC) are heterogeneous in both their clinical behaviour and response to therapy. The ER and Progesterone (PgR) are currently the best predictors of response to the anti-oestrogen tamoxifen, yet up to 40%
Yeoh, Chit Cheng
core   +4 more sources

Italian randomized trial among womenwith histerectomy: tamoxifen and hormone-dependent breast cancer in hight-risk women [PDF]

open access: yes, 2003
Tamoxifen improves outcome in women with breast cancer and reduces the incidence of estrogen receptor-positive (ER+) breast tumors in prevention trials. Tamoxifen use is associated with an increased risk of potentially serious adverse events, principally
MAISSONEUVE P   +5 more
core   +1 more source

Disruption of the ER-α36-EGFR/HER2 positive regulatory loops restores tamoxifen sensitivity in tamoxifen resistance breast cancer cells.

open access: yesPLoS ONE, 2014
Tamoxifen provided a successful treatment for ER-positive breast cancer for many years. However, most breast tumors develop tamoxifen resistance and are eventually refractory to tamoxifen therapy.
Li Yin   +4 more
doaj   +1 more source

Associations between tamoxifen, estrogens, and FSH serum levels during steady state tamoxifen treatment of postmenopausal women with breast cancer

open access: yesBMC Cancer, 2010
Background The cytochrome P450 (CYP) enzymes 2C19, 2D6, and 3A5 are responsible for converting the selective estrogen receptor modulator (SERM), tamoxifen to its active metabolites 4-hydroxy-tamoxifen (4OHtam) and 4-hydroxy-N-demethyltamoxifen (4OHNDtam,
Lundgren Steinar   +7 more
doaj   +1 more source

Upregulation of PI3K/AKT/PTEN pathway is correlated with glucose and glutamine metabolic dysfunction during tamoxifen resistance development in MCF-7 cells

open access: yesScientific Reports, 2020
Tamoxifen resistance is emerging as a big challenge in endocrine therapy of luminal A breast cancer patients. In this study, we aimed to determine the molecular changes of PI3K/AKT/PTEN signaling pathway during tamoxifen-resistance development using ...
Lama Hamadneh   +3 more
doaj   +1 more source

Combination treatment of tamoxifen with risperidone in breast cancer.

open access: yesPLoS ONE, 2014
Tamoxifen has long been used and still is the most commonly used endocrine therapy for treatment of both early and advanced estrogen receptor-positive breast cancer in pre- and post-menopause women. Tamoxifen exerts its cytotoxic effect primarily through
Wei-Lan Yeh   +3 more
doaj   +1 more source

NR4A1 Regulates Tamoxifen Resistance by Suppressing ERK Signaling in ER-Positive Breast Cancer

open access: yesCells, 2021
Endocrine therapy is used to treat estrogen receptor (ER)-positive breast cancer. Tamoxifen is effective against this cancer subtype. Nonetheless, approximately 30% of patients treated with tamoxifen acquire resistance, resulting in therapeutic ...
Yu Cheon Kim   +3 more
doaj   +1 more source

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