Results 31 to 40 of about 45,192 (224)

A novel antifolate suppresses growth of FPGS-deficient cells and overcomes methotrexate resistance

open access: yesLife Science Alliance, 2023
Mechanistic characterization of a novel, lipophilic antifolate that suppresses growth of FPGS-deficient cells that are linked to methotrexate resistance and relapse in cancer patients.
Felix van der Krift   +18 more
doaj   +1 more source

A reservoir of 'historical' antibiotic resistance genes in remote pristine Antarctic soils [PDF]

open access: yes, 2018
Background: Soil bacteria naturally produce antibiotics as a competitive mechanism, with a concomitant evolution, and exchange by horizontal gene transfer, of a range of antibiotic resistance mechanisms.
Bezuidt, Oliver KI   +5 more
core   +2 more sources

Self-organizing Neural Networks for Modeling Robust 3D and 4D QSAR: Application to Dihydrofolate Reductase Inhibitors

open access: yesMolecules, 2004
We have used SOM and grid 3D and 4D QSAR schemes for modeling the activity of a series of dihydrofolate reductase inhibitors. Careful analysis of the performance and external predictivities proves that this method can provide an efficient inhibition ...
Tomasz Magdziarz   +3 more
doaj   +1 more source

Toward eradication of B-vitamin deficiencies : considerations for crop biofortification [PDF]

open access: yes, 2018
'Hidden hunger' involves insufficient intake of micronutrients and is estimated to affect over two billion people on a global scale. Malnutrition of vitamins and minerals is known to cause an alarming number of casualties, even in the developed world ...
Strobbe, Simon   +1 more
core   +3 more sources

Identification of Novel Potential Inhibitors of Pteridine Reductase 1 in Trypanosoma brucei via Computational Structure-Based Approaches and in Vitro Inhibition Assays

open access: yesMolecules, 2019
Pteridine reductase 1 (PTR1) is a trypanosomatid multifunctional enzyme that provides a mechanism for escape of dihydrofolate reductase (DHFR) inhibition. This is because PTR1 can reduce pterins and folates.
Magambo Phillip Kimuda   +3 more
doaj   +1 more source

Processes underlying the nutritional programming of embryonic development by iron deficiency in the rat [PDF]

open access: yes, 2012
Peer reviewedPublisher ...
Gambling, Lorraine   +5 more
core   +3 more sources

Design, synthesis, and biological evaluation of novel N 4 -substituted sulfonamides: acetamides derivatives as dihydrofolate reductase (DHFR) inhibitors

open access: yesBMC Chemistry, 2019
Background Sulfonamide derivatives are of great attention due to their wide spectrum of biological activities. Sulfonamides conjugated with acetamide fragments exhibit antimicrobial and anticancer activities. The inhibition dihydrofolate reductase (DHFR)
Essam M. Hussein   +3 more
doaj   +1 more source

Affinity chromatography of dihydrofolate reductase [PDF]

open access: yesBiochemical Journal, 1971
1. Dihydrofolate reductase was purified from Lactobacillus casei MTX/R, and studied on affinity columns containing folic acid and methotrexate. Two forms of the enzyme were interconverted by incubation with substrates. 2. Affinity columns were prepared from agarose activated with cyanogen bromide and coupled with 1,6-diaminohexane.
P C, Newbold, N G, Harding
openaire   +2 more sources

A Two-Enzyme Adaptive Unit within Bacterial Folate Metabolism

open access: yesCell Reports, 2019
Summary: Enzyme function and evolution are influenced by the larger context of a metabolic pathway. Deleterious mutations or perturbations in one enzyme can often be compensated by mutations to others.
Andrew F. Schober   +8 more
doaj   +1 more source

Cinnamomum zeylanicum Extract and its Bioactive Component Cinnamaldehyde Show Anti-Tumor Effects via Inhibition of Multiple Cellular Pathways

open access: yesFrontiers in Pharmacology, 2022
Cinnamomum zeylanicum is a tropical plant with traditional medicinal significance that possesses antimicrobial, antifungal, anti-parasitic, and anti-tumor properties.
Sadhna Aggarwal   +8 more
doaj   +1 more source

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