Results 31 to 40 of about 4,011 (296)

Selective Bronchodilators from 1-(5′-Oxohexyl)xanthines [PDF]

open access: yes, 1992
A series of twenty one 1-(5′-oxohexyl)xanthines substituted with alkyl chains at the N 3 and N 7 positions of the xanthine nucleus were prepared and their relaxant activity in guinea-pig isolated tracheal muscle and positive chronotropic activity in ...
Ryosuke Sakai   +6 more
core   +1 more source

Synthesis and research on properties of 2-(4-еthyl-5-((3'-methylxantine-7'-yl)methyl)-4H-1,2,4-triazole-3-ylthio)acetic acid’s salts

open access: yesAktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2016
1,2,4-Triazole derivatives are successfully used in medicine as antibacterial and antifungal agents. Aim of our research is the study of synthesis of 7'-((3-thio-4-ethyl-4H-1,2,4-triazole-5-yl)methyl)-3'-methylxanthine. Methods and results.
A. S. Gotsulya
doaj   +1 more source

1‐Hydroxy‐xanthine derivatives inhibit the human Caf1 nuclease and Caf1‐containing nuclease complexes via Mg2+‐dependent binding

open access: yesFEBS Open Bio, 2019
In eukaryotic cells, cytoplasmic mRNA is characterised by a 3′ poly(A) tail. The shortening and removal of poly(A) tails (deadenylation) by the Ccr4‐Not nuclease complex leads to reduced translational efficiency and RNA degradation.
Blessing Airhihen   +4 more
doaj   +1 more source

Caffeine Citrate in Neonatal Intensive Care Unit [PDF]

open access: yesAnnals of Neonatology Journal, 2023
Apnea is a common condition in premature infants due to the immaturity of respiratory control mechanisms. Incidence increases with younger gestational age and lower birth weight, afflicting 25% of infants under 2500 g and 80% under 1000 g .
Afaf Korraa
doaj   +1 more source

Effects of methylated xanthines on the neuronally isolated cerebral cortex [PDF]

open access: yes, 1961
Although caffeine has long been considered to be a cerebral cortical stimulant, relatively little is known of its sites and mechanism of action in the cerebral cortex.
Domino, Edward F., Maiti, Ajit
core   +1 more source

Synthesis and physical-chemical properties of 3-aryl-(aralkyl)-8-hydrazinemethylxanthines and their N-substituted derivatives

open access: yesAktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2016
Introduction. Analysis of last years’ literature shows, that the most wide spread drugs are those, which contain in their structures heterocyclic fragment.
K. V. Аleksandrova   +3 more
doaj   +1 more source

Benefits under the Sea: The Role of Marine Compounds in Neurodegenerative Disorders

open access: yesMarine Drugs, 2021
Marine habitats offer a rich reservoir of new bioactive compounds with great pharmaceutical potential; the variety of these molecules is unique, and its production is favored by the chemical and physical conditions of the sea.
Mariano Catanesi   +5 more
doaj   +1 more source

Genetic predisposition to porto‐sinusoidal vascular disorder: A functional genomic‐based, multigenerational family study

open access: yesHepatology, EarlyView., 2022
A deleterious variant of FCHSD1 results in mTOR pathway overactivation and may cause porto‐sinusoidal vascular disorder (PSVD). The pedigree of the family demonstrated an autosomal dominant disease with variable expressivity. Whole‐genome sequencing and Sanger sequencing both validated the existence of the FCHSD1 variant and the heterozygosity of c ...
Jingxuan Shan   +19 more
wiley   +1 more source

Drug Delivery Systems: Study of Inclusion Complex Formation between Methylxanthines and Cyclodextrins and Their Thermodynamic and Transport Properties

open access: yesBiomolecules, 2019
This paper presents an analysis of the molecular mechanisms involved in the formation of inclusion complexes together with some structural interpretation of drug−carrier molecule interactions in aqueous multicomponent systems comprising ...
Cecília I. A. V. Santos   +2 more
doaj   +1 more source

The Effect of Lipopolysaccharide on the Disposition of Xanthines in Rats [PDF]

open access: yes, 1993
The effect of lipopolysaccharide (LPS) isolated from Klebsiella pneumoniae O3 on the pharmacokinetic behaviour and metabolism of the xanthines, theophylline and 1-methyl-3-propylxanthine (MPX), which are mainly metabolized by the liver, was investigated ...
Isao Muraoka   +5 more
core   +1 more source

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