Results 81 to 90 of about 9,547 (224)
Occurrence of Pterin Pigments in Hymenoptera [PDF]
Nature, 1950 IT has been found that pterins exist in tissues of animals belonging to nearly all groups; their occurrence as pigments, however, is restricted to insects and cold-blooded vertebrates1,2. Among Lepidoptera, they are always present in the wing-scales of the Pieridae and appear to be a biochemical characteristic of that natural family3,4.
openaire +2 more sources
Synthetic Routes to a Library of Novel Methionine Synthase Inhibitors [PDF]
, 2020 Fungal infections are of continuous concern, especially with regard to immunocompromised patients. In an effort to develop new potential anti-fungal agents, we have begun synthesizing a library of potential inhibitors of the fungal Methionine Synthase ...
Bennett, Zachary +4 more
core +1 more source
Levodopa Use and Long‐Term Benefit in Different Dystonia Phenotypes
Acta Neurologica Scandinavica, Volume 2026, Issue 1, 2026.Background Dopaminergic changes have been reported in various forms of dystonia beyond dopa‐responsive dystonia (DRD). Besides DRD, levodopa (LDopa) is generally not considered effective in dystonia and may worsen it. This study assesses the impact of LDopa on different dystonia phenotypes. Objectives The patient database of Tampere University Hospital
Rebekka M. Ortiz +2 more
wiley +1 more source
Metabolic Processes Preserved as Biosignatures in Iron-Oxidizing Microorganisms: Implications for Biosignature Detection on Mars [PDF]
Iron-oxidizing bacteria occupy a distinct environmental niche. These chemolithoautotrophic organisms require very little oxygen (when neutrophilic) or outcompete oxygen for access to Fe(II) (when acidophilic).
Emerson, David +3 more
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The Scientific World Journal, Volume 2026, Issue 1, 2026.The focus of recent research has been on developing natural medicines. Natural substances of the Annona reticulata Linn. plant, which belongs to the Annonaceae family, have medicinal uses. The antibacterial, insecticidal, and antidiarrheal properties of Annona reticulata Linn.
Tasnia Binte Bari Kabbo +4 more
wiley +1 more source
Journal of Pharmacological Sciences, 2008 To evaluate the feasibility of two kinds of pterin derivatives, 2-(N,N-dimethylaminomethyleneamino)-6-formyl-3-pivaloylpteridin-4-one (DFP) and 2-(N,N-dimethylaminomethyleneamino)-3-pivaloylpteridin-4-one (DP), as anticancer drugs, their photodynamic and
Takashi Miyoshi +6 more
doaj +1 more source
First Synthesis of a Representative, Natural Pterin Glycoside: 2’-O-(α-D-Glucopyranosyl)biopterin [PDF]
, 2009 Glycosylation of N(2)-(N,N-dimethylaminomethylene)-1’-O-(4-methoxybenzyl)-3-[2-(4-nitrophenyl) ethyl]biopterin (14) with the novel donor 4,6-di-O-acetyl-2,3-di-O-(4-methoxybenzyl)-α-D-glucopyranosyl bromide (19) in the presence of silver triflate and ...
Hanaya, Tadashi +2 more
core
Drug Discovery Applications of Nitroso (Hetero)Arene Derivatives
ChemPlusChem, Volume 90, Issue 12, December 10, 2025.Nitroso (hetero)aromatic compounds are bioactive molecules with antiviral, anticancer, neuroprotective, and antimicrobial properties. This review highlights their mechanisms of action—oxidative stress, DNA damage, and enzyme inhibition—alongside synthesis, structure–activity relationships, and toxicity challenges, offering insight into their ...
Silvia Roscales, Aurelio G. Csáky
wiley +1 more source
Biosynthesis of Pteridines in Insects: A Review
InsectsPteridines are important cofactors for many biological functions of all living organisms, and they were first discovered as pigments of insects, mainly in butterfly wings and the eye and body colors of insects. Most of the information on their structures
Juan Ferré
doaj +1 more source
Exogenous application of molybdenum affects the expression of CBF14 and the development of frost tolerance in wheat. [PDF]
, 2013 Wheat is able to cold acclimate in response to low temperatures and thereby increase its frost tolerance and the extent of this acclimation is greater in winter genotypes compared to spring genotypes.
Al-Issawi, M +4 more
core +2 more sources