Results 31 to 40 of about 68,646 (253)

Severe theophylline poisoning treated with continuous venovenous hemodialysis in a child

The Turkish Journal of Pediatrics, 2016
Theophylline poisoning generally occurs due to acute high dose intake as well as chronic intake of the medication. Toxicity symptoms can be seen with a plasma concentration of theophylline over 20 μg/ml.
Ayhan Yaman, Tanıl Kendirli, Çağlar Ödek, Ebru Azapağası, Hatice Erkol, İbrahim Etem Pişkin, Serap Teber-Tıraş, Fatoş Yalçınkaya   +7 more
doaj   +1 more source

Systematic Comparison and Rational Design of Theophylline Riboswitches for Effective Gene Repression

Microbiology Spectrum, 2023
Riboswitches are promising regulatory tools in synthetic biology. To date, 25 theophylline riboswitches have been developed for regulation of gene expression in bacteria. However, no one has systematically evaluated their regulatory effects.
Xun Wang, Can Fang, Yifei Wang, Xinyu Shi, Fan Yu, Jin Xiong, Shan-Ho Chou, Jin He   +7 more
doaj   +1 more source

Thiolated chitosan nanoparticles enhance anti-inflammatory effects of intranasally delivered theophylline

Respiratory Research, 2006
Background Chitosan, a polymer derived from chitin, has been used for nasal drug delivery because of its biocompatibility, biodegradability and bioadhesiveness.
Mohapatra Shyam S, Lockey Richard F, Shirley Shawna A, Lee Dong-Won   +3 more
doaj   +1 more source

Effect of Theophylline as Adjunct to Inhaled Corticosteroids on Exacerbations in Patients With COPD: A Randomized Clinical Trial

Journal of the American Medical Association (JAMA), 2018
Importance Chronic obstructive pulmonary disease (COPD) is a major global health issue and theophylline is used extensively. Preclinical investigations have demonstrated that low plasma concentrations (1-5 mg/L) of theophylline enhance antiinflammatory ...
G. Devereux, S. Cotton, S. Fielding, N. McMeekin, P. Barnes, A. Briggs, Graham Burns, R. Chaudhuri, H. Chrystyn, L. Davies, A. de Soyza, S. Gompertz, J. Haughney, Karen Innes, J. Kaniewska, Amanda J. Lee, A. Morice, J. Norrie, A. Sullivan, Andrew M. Wilson, D. Price   +20 more
semanticscholar   +1 more source

Theophylline Enhances In Vitro Fertilization and Embryo Production in Buffaloes

Tropical Animal Science Journal, 2023
This study aimed to investigate the effect of theophylline on in vitro fertilization of buffalo oocytes and embryo development in subsequent in vitro embryo culture.
I. Akter, Md. Hasanur Alam, M. N. Islam, A. K. Modak, A. Khatun, M. Moniruzzaman   +5 more
doaj   +1 more source

The characteristics and costs of severe theophylline toxicity in a tertiary critical care unit in Eastern Cape Province, South Africa

South African Medical Journal, 2022
Background. Severe theophylline toxicity requiring haemodialysis accounts for approximately one-third of drug toxicity cases admitted to the Livingstone Tertiary Hospital (LTH) intensive care unit (ICU) in Gqeberha, South Africa, imposing a significant ...
JV Oxley-Oxland, R Freercks, D Baker, E van der Merwe   +3 more
doaj   +1 more source

The Old Friend Ruthless Enemy - Theophylline Toxicity: A Case Report

, 2020
Theophylline is an old drug of modern medicine. Theophylline toxicity may develop both with acute or chronic intakes due to its narrow therapeutic index.
Hasan Serdar Kıhtır, Zeynep Kıhtır, Seda Aras, Tuğçe Ekşi Aygün, Ebru Çelebi, Zeynep Gör   +5 more
core   +1 more source

Extending Small‐Molecule Aptamer Discovery Principles to Protein Targets: Selection and Characterization of Green Fluorescent Protein Aptamers

Angewandte Chemie, EarlyView.
Protein‐binding aptamers remain poorly understood compared to their small‐molecule counterparts. Using green fluorescent protein (GFP) variants as a tractable model system, we show how subtle changes in protein surface composition and divalent metal ions reshape aptamer selection, specificity, and binding.
Stefen Stangherlin, Nathan Wong, Logan Fanning, Kate Kim, Peter Kim, Iffat Tabassum, Songyang Miao, Rui Huang, Juewen Liu   +8 more
wiley   +2 more sources

Analysis of the impact of cryopreservation and theophylline on motility of sperm

Middle East Fertility Society Journal, 2018
Objective: Sperm parameters, particularly motility, decrease during cryopreservation. Theophylline generally enhances sperm motility. We analyzed effects of theophylline and freezing on sperm motility.Design: Experimental study.Setting: Private IVF lab ...
Elaheh Gorji, Mir Mehrdad Farsi, Soraya Khafri, Hamid Shafi   +3 more
doaj   +1 more source

Highly Sensitive Determination of Theophylline Based on Graphene Quantum Dots Modified Electrode

, 2018
In this study we introduce a novel modification for the surface of screen-printed electrode (SPE) by graphene quantum dot (GQD) in order to be used in the determination and detection of theophylline.
M. Ganjali
semanticscholar   +1 more source