Results 81 to 90 of about 1,337,629 (257)

An investigation of thresholds in air pollution-mortality effects [PDF]

, 2004
In this paper we introduce and implement new techniques to investigate threshold effects in air pollution-mortality relationships. Our key interest is in measuring the dose-response relationship above and below a given threshold level where we allow for ...
Clyde, Daniels, Delfino, Dockery, Dominici, Draper, Fairly, Fernandez, Fernandez, Gary Koop, Hodges, Hoeting, Hurley, Koop, Koop, Lim, Lise Tole, Madigan, Meng, Ordieres, Ostro, Pope, Raftery, Schwartz, Schwartz, Schwartz, Schwartz, Schwartz, Schwartz, Schwartz, Schwartz, Schwartz, Schwartz, Schwartz, Schwartz, Smith, Xu   +36 more
core   +1 more source

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

Molecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson, Lyanne Delgado‐Coka, Natalia Marchenko, Luisa F. Escobar‐Hoyos, Kenneth R. Shroyer, Alisa Yurovsky, Trey Ideker, Gábor Balázsi, Thomas MacCarthy, Scott Powers   +9 more
wiley   +1 more source

Comparison of the potency-ratio of ciprofol and propofol on sedative effects in painless hysteroscopy: a randomized double-blind dose-response study

BMC Anesthesiology
Purpose Ciprofol has been investigated as a potential alternative to propofol for anesthesia because of its tendency to depress the respiratory and circulatory systems to a lesser extent and its association with less pain during injection.
Yu Zhang, Xiaoping Chen, Lin Jin, Xinzhong Chen, Xiaowei Qian   +4 more
doaj   +1 more source

Performance of an adapted household food insecurity access scale in measuring seasonality in household food insecurity in rural Ethiopia: a cohort analysis

BMC Nutrition, 2019
Background Seasonality poses a considerable food security challenge in Ethiopia. Yet, measuring seasonal variations in food insecurity, particularly the dimension of food access, lacks an adequately validated tool.
Bereket Yohannes Kabalo, Seifu Hagos Gebreyesus, Eskindir Loha, Bernt Lindtjørn   +3 more
doaj   +1 more source

The dose-response relationship between training load and aerobic fitness in academy rugby union players [PDF]

, 2017
© 2018 Human Kinetics, Inc. Purpose: To identify the dose-response relationship between measures of training load (TL) and changes in aerobic fitness in academy rugby union players. Method: Training data from 10 academy rugby union players were collected
Abt, Grant, Akubat, Ibrahim, Myers, Tony, Sanders, Dajo, Taylor, Celia A., Taylor, Richard J.   +5 more
core   +2 more sources

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 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
Bretz, Frank, Dette, Holger, Pinheiro, José   +2 more
core  

Oral Apolipoprotein A-I Mimetic D-4F Lowers HDL-Inflammatory Index in High-Risk Patients: A First-in-Human Multiple-Dose, Randomized Controlled Trial. [PDF]

, 2017
A single dose of the apolipoprotein (apo)A-I mimetic peptide D-4F rendered high-density lipoprotein (HDL) less inflammatory, motivating the first multiple-dose study. We aimed to assess safety/tolerability, pharmacokinetics, and pharmacodynamics of daily,
Bloedon, LeAnne T., Duffy, Danielle, Dunbar, Richard L., Fogelman, Alan M., Movva, Rajesh, Navab, Mohamad, Norris, Robert B., Rader, Daniel J.   +7 more
core   +2 more sources

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

Individual differences in delay discounting and nicotine self-administration in rats [PDF]

, 2009
Delay discounting—a behavioral measure of impulsivity defined as a tendency to prefer a small, immediate reward over a larger reward delayed in time—has been extensively linked with tobacco smoking.
Sweitzer, Maggie M.
core