Results 81 to 90 of about 11,727,114 (306)

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

FEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise, Tiziano Mazza, Raffaella Scanga, Lara Console, Michele Galluccio, Cesare Indiveri   +5 more
wiley   +1 more source

Review and revision of empirical critical loads and dose-response relationships

, 2011
The workshop on the review and revision of empirical critical loads and dose response relationships was held under the Convention on Long-range Transboundary Air Pollution, in Noordwijkerhout, from 23-25 June 2010.
Tomassen, Hilde, Power, Sally A. (R17014), Bobbink, Roland, Weijters, Maaike, Schütz, Kirsten, Nordin, Annika, Strengbom, Joachim, Braun, Sabine   +7 more
core  

Systematic review and meta-analysis of reduction in all-cause mortality from walking and cycling and shape of dose response relationship [PDF]

, 2014
Background and objectiveWalking and cycling have shown beneficial effects on population risk of all-cause mortality (ACM). This paper aims to review the evidence and quantify these effects, adjusted for other physical activity (PA).Data sourcesWe ...
Thomas Götschi, Foster, C, Scarborough, Peter, Kahlmeier, Sonja, Nia Roberts, Goetschi, T, Götschi, Thomas, Paul Kelly, Scarborough, P, Orsini, Nicola, Richards, Justin, Kahlmeier, S, Richards, J, Charlie Foster, Götschi, T, Foster, Charlie, Orsini, N,, Sonja Kahlmeier, Nicola Orsini, Peter Scarborough, Roberts, N, Foster, Charles, Orsini, N, Kelly, Paul, Roberts, Nia, Justin Richards, Kelly, P   +26 more
core   +1 more source

A context‐dependent modulatory role for eIF6 in acquired resistance to vemurafenib in melanoma

FEBS Letters, EarlyView.
Acquired resistance to vemurafenib upregulates the translation factor eIF6 in melanoma cells. Silencing eIF6 in resistant cells reduces proliferation and partially restores drug sensitivity, whereas its overexpression increases sensitivity across melanoma lines regardless of BRAF status, via modulation of mTOR, S6K, and MAPK signaling.
George Kyriakopoulos, Antonia Petropoulou, Alexandra Anastogianni, Angelina Bania, Vassilis Stamatakis, Argyris Alexiou, Chi‐Ping Day, Glenn Merlino, Katerina Grafanaki, Constantinos Stathopoulos   +9 more
wiley   +1 more source

Practical considerations for optimal designs in clinical dose finding studies [PDF]

Determining an adequate dose level for a drug and, more broadly, characterizing its dose response relationship, are key objectives in the clinical development of any medicinal drug. If the dose is set too high, safety and tolerability problems are likely
Dette, Holger, Pinheiro, José, Bretz, Frank   +2 more
core  

Modeling Nonlinear Dose-Response Relationships in Epidemiologic Studies: Statistical Approaches and Practical Challenges

, 2005
Non-linear dose response relationships pose statistical challenges for their discovery. Even when an initial linear approximation is followed by other approaches, the results may be misleading and, possibly, preclude altogether the discovery of the ...
Carol Bigelow, Susanne May
core   +1 more source

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

Molecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce, Simone Bini, Marialuisa Sponziello, Giorgio Grani, Giulia Fiscon, Paola Paci, Lorenzo Farina, Rosa Falcone, Valentina Maggisano, Sebastiano Filetti, Cosimo Durante, Antonella Verrienti   +11 more
wiley   +1 more source

A Method to Evaluate Hormesis in Nanoparticle Dose-Responses

, 2012
The term hormesis describes a dose-response relationship that is characterized by a response that is opposite above and below the toxicological or pharmacological threshold. Previous reports have shown that this relationship is ubiquitous in the response
Edward J. Calabrese, Marc A. Nascarella
core   +1 more source

Efficacy and toxicity of low-doses versus standard-dose enzalutamide in advanced prostate cancer: a real-world study with implications for cancer prevention/interception

BMC Cancer
Background Enzalutamide at standard doses (160 mg/day) is effective in advanced prostate cancer (PCa) but is associated with considerable adverse events (AEs) and high financial costs.
Martino Oliva, Monica Boitano, Alessio Carbone, Irene Maria Briata, Tania Buttiron Webber, Davide Corradengo, Carlo Introini, Matteo Puntoni, Marco Ennas, Federico Germinale, Nicoletta Provinciali, Matteo Clavarezza, Alberto Gozza, Carlotta Defferrari, Mauro D’Amico, Howard L. Parnes, Andrea DeCensi   +16 more
doaj   +1 more source

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

Molecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla, Christopher Dirks, Caroline Eiden, Sonja K. Fesenmayer, Femke M. Hormann, Yolande Klootsema, Ingrid Lilienthal, Si Min Zhang, Nikolas Herold, Sean G. Rudd   +9 more
wiley   +1 more source