Results 131 to 140 of about 42,124 (246)

Abstract 2400: Identification of histone modifying enzymes associated with tamoxifen resistance in MCF7 breast cancer cells

open access: yes, 2017
Tamoxifen is widely used to treat estrogen receptor-alpha positive breast cancer. However, resistance to tamoxifen often prevent the success of endocrine therapy.
Min-Ho Lee, Mi-Ock Lee
core   +1 more source

Mitochondrial oxidative stress, calcium and dynamics in cardiac ischaemia‐reperfusion injury

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Heart attack causes ischaemia–reperfusion injury in cardiomyocytes. Mitochondria generate reactive oxygen species (ROS), leading to oxidative stress. High levels of mitochondrial calcium (Ca2+) activate the mitochondrial permeability transition pore (mPTP), and excess ROS levels can lower the Ca2+ required to activate the mPTP ...
Emily Rozich   +5 more
wiley   +1 more source

Mammalian enabled protein enhances tamoxifen sensitivity of the hormone receptor-positive breast cancer patients by suppressing the AKT signaling pathway

open access: yesBiology Direct
Background Mammalian enabled (MENA) protein is a member of the enabled/vasodilator stimulated phosphoprotein (Ena/VASP) protein family, which regulates cytoplasmic actin network assembly.
Lifang He   +7 more
doaj   +1 more source

An investigation of the role of the ErbB receptor family in chemotherapeutic drug resistance and invasion in human breast cancer [PDF]

open access: yes, 2002
The purpose of the work described in this thesis was to investigate the effects of upregulation of c-erbB-2 by cDNA transfection and the downregulation by ribozyme transfection on chemotherapeutic drug sensitivity, in vitro invasion, and expression of a ...
Glynn, Sharon
core  

Maternal nutrition as a key determinant of placental and developing blood–brain barrier xenobiotic protective functions

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Suboptimal maternal nutrition alters placental and developing blood–brain barrier (BBB) protective function and is associated with increased fetal brain vulnerability. In the placenta, nutritional adversity may reduce the exchange surface area and promote meta‐inflammation, compromising barrier efficiency in a model‐ and context ...
Kristin L. Connor   +4 more
wiley   +1 more source

Voltage‐gated potassium channels mediate thyroid hormone control of skeletal muscle excitability

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Thyroid hormone (TH)‐dependent remodelling of potassium (K+) channel networks regulates skeletal muscle (SkM) excitability. Triiodothyronine (T3), locally generated from thyroxine (T4) by type 2 deiodinase (D2), binds thyroid hormone receptors (TRα/β) and modulates transcription via thyroid response elements (TREs).
Annarita Nappi   +12 more
wiley   +1 more source

Integrative Analysis of Response to Tamoxifen Treatment in ER-Positive Breast Cancer Using GWAS Information and Transcription Profiling

open access: yes, 2012
Variable response and resistance to tamoxifen treatment in breast cancer patients remains a major clinical problem. To determine whether genes and biological pathways containing SNPs associated with risk for breast cancer are dysregulated in response to ...
Chindo Hicks   +3 more
core   +1 more source

Identification of Crucial Drug Targets and Pathways to Reprogram Drug Resistance Through Epigenetic Modulation in Advanced Lung Cancer Using Integrated Bioinformatics Approach

open access: yesComputational and Systems Oncology, Volume 6, Issue 1, December 2026.
ABSTRACT Resistance to chemotherapy, which is demonstrated in almost every patient with advanced‐stage lung cancer (ALC), underscores an urgent need to unravel the underlying molecular mechanisms and identify novel strategies to overcome drug resistance. In the present study, an attempt was made to identify epigenetic targets and modulators that can be
Okibur Rahman   +2 more
wiley   +1 more source

Female Mice Show Stronger Time‐of‐Day Modulation of Astrocytic Ca2+ Activity in the Sleep‐Regulatory Ventrolateral Preoptic Nucleus

open access: yesGlia, Volume 74, Issue 8, August 2026.
VLPO astrocytes exhibit sex‐specific Ca2+ dynamics across the nycthemeral cycle. Males show faster Ca2+ kinetics, while females display increased amplitude, frequency, and network coupling at Zeitgeber Time (ZT)‐14. Sex is a key variable in astrocyte‐based sleep regulation mechanisms.
Félix Camille Bellier   +5 more
wiley   +1 more source

Tamoxifen Resistance Trumped and Oral Selective Estrogen Receptor Degraders Arrive

open access: yes, 2018
Predictive tests, to refine the estrogen receptor assay, for the adjuvant treatment of breast cancer with tamoxifen and oral selective estrogen receptor degraders (SERD) are required.
V. Craig Jordan
core   +1 more source

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