Results 41 to 50 of about 30,153 (204)
Background The biosynthesis of estrogens from androgens is catalyzed by aromatase P450 enzyme, coded by the CYP19A1 gene on chromosome 15q21.2. Genetic variation within the CYP19A1 gene sequence has been shown to alter the function of the enzyme.
Mullin, B. +33 more
core +1 more source
Introduction: Young women with endometrial intraepithelial hyperplasia or low-grade endometrial carcinoma are potential candidates for conservative fertility sparing therapy utilizing progesterone rather than hysterectomy.
Alli Straubhar +3 more
doaj +1 more source
High temperature (36° C) treatment during sexual differentiation caused significant changes in sex ratio in YY male Nile tilapia Oreochromis niloticus fry (64.5% males compared to 100.0% males at 28° C), while dietary treatment with a chemical ...
Penman, David +2 more
core +1 more source
Apoptosis and autophagy in breast cancer cells following exemestane treatment. [PDF]
Aromatase inhibitors (AIs), which block the conversion of androgens to estrogens, are used for hormone-dependent breast cancer treatment. Exemestane, a steroidal that belongs to the third-generation of AIs, is a mechanism-based inhibitor that binds ...
Cristina Amaral +5 more
doaj +1 more source
Neoadjuvant therapy is recommended for patients with locally advanced breast cancer. Here the authors report the results of a phase 2 clinical trial of oral neoadjuvant therapy with pyrotinib (pan-HER tyrosine kinase inhibitor), letrozole (aromatase ...
Nan Niu +32 more
doaj +1 more source
ICSI cycles in women over 40 years: analysis of 3 different ovarian stimulation protocols
Purpose: To compare the clinical and laboratory outcomes of GnRH agonist stop, aromatase inhibitor/flexible antagonist and ultrashort flare GnRHa/flexible GnRH antagonist protocols in women (40–44) years undergoing ICSI.
H. Sibai, E.A. Elgindy, M.I. Mostafa
doaj +1 more source
Aromatase Inhibitors for Ovulation Induction [PDF]
Normogonadotropic anovulation, including polycystic ovary syndrome (PCOS), is one of the main causes of infertility. Recent meta-analysis and randomized controlled trial suggest the use of aromatase inhibitors (ie, letrozole) as effective drug and first-line treatment to restore fertility in these patients.
openaire +3 more sources
Since their introduction into clinical use in the 1970s, aromatase inhibitors have been a cornerstone of therapy for estrogen-receptor positive breast cancer in postmenopausal women.
Nelly Grigorian, Steven J Baumrucker
doaj +1 more source
Origin of aromatase inhibitory activity via proteochemometric modeling [PDF]
Aromatase, the rate-limiting enzyme that catalyzes the conversion of androgen to estrogen, plays an essential role in the development of estrogen-dependent breast cancer.
Saw Simeon +7 more
doaj +2 more sources
PurposeTo establish a high-risk prediction model for aromatase inhibitor-associated bone loss (AIBL) in patients with hormone receptor-positive breast cancer.MethodsThe study included breast cancer patients who received aromatase inhibitor (AI) treatment.
Yue Zhou (71752) +17 more
core +1 more source

