Results 21 to 30 of about 1,030,834 (343)

Alkaloids from the Sponge Stylissa carteri Present Prospective Scaffolds for the Inhibition of Human Immunodeficiency Virus 1 (HIV-1). [PDF]

open access: yes, 2016
The sponge Stylissa carteri is known to produce a number of secondary metabolites displaying anti-fouling, anti-inflammatory, and anti-cancer activity. However, the anti-viral potential of metabolites produced by S.
Bader, Theresa Maria   +7 more
core   +2 more sources

The phenolic content, antioxidant and cytotoxic activities of Origanum sipyleum from Turkey

open access: yesInternational Journal of Secondary Metabolite, 2018
Origanum sipyleum is a medicinal plant species belonging to the genus Origanum and traditionally vegetative parts of this plant have been used as medicinal tea or food additives.
Arzu Kaska
doaj   +1 more source

Premarital screening test results for beta thalassemia in Malatya Province

open access: yesMedicine Science, 2021
Hemoglobinopathies are the most common monogenic hereditary diseases worldwide. After sickle-cell disease, beta thalassemia has the highest incidence. Premarital screening is performed to detect beta thalassemia carriers and prevent pathological births ...
Mehmet Erten
doaj   +1 more source

One pot ‘click’ reactions: tandem enantioselective biocatalytic epoxide ring opening and [3+2] azide alkyne cycloaddition [PDF]

open access: yes, 2010
Halohydrin dehalogenase (HheC) can perform enantioselective azidolysis of aromatic epoxides to 1,2-azido alcohols which are subsequently ligated to alkynes producing chiral hydroxy triazoles in a one-pot procedure with excellent enantiomeric excess.
Campbell-Verduyn, Lachlan S.,   +6 more
core   +2 more sources

Comprehensive measurement of purines in biological samples

open access: yesFrontiers in Analytical Science
Defects in numerous aspects of purine metabolism are well-recognized causes for human diseases. The applicability of ultra performance liquid chromatography (UPLC) with photodiode array (PDA) detection for analysis of the most abundant biological ...
Rong Fu   +6 more
doaj   +1 more source

Two-step separation of nostotrebin 6 from cultivated soil cyanobacterium (Nostoc sp.) by high performance countercurrent chromatography [PDF]

open access: yes, 2014
High performance countercurrent chromatography (HPCCC) was successfully applied for the separation of nostotrebin 6 from cultivated soil cyanobacteria in a two-step operation.
Berthod   +13 more
core   +2 more sources

PENENTUAN KLORAMFENIKOL DALAM DAGING AYAM BROILER DENGAN METODE HIGH PERFORMANCE LIQUID CHROMATOGRAPHY (HPLC)

open access: yesRekayasa, 2012
Determination of chloramphenicol on broiler meat in the traditional market by using High-Performance Liquid Chromatography (HPLC) method has been done.
Aman Sentosa Panggabean
doaj   +1 more source

Catch and release’ cascades: a resin-mediated three-component cascade approach to small molecules [PDF]

open access: yes, 2006
The application of a ‘catch and release’ approach to palladium-catalysed multi-component cascade reactions leads to diverse libraries of pharmacologically interesting small molecules in high yield and with excellent ...
Andrew Cook   +23 more
core   +1 more source

Allelopathic effect of the Cladonia verticillaris lichen extracts and fumarprotocetraric acid on the early growth of germinated seedlings in Allium cepa L. [PDF]

open access: yes, 1999
The allelopathic activity of the different type of Cladonia verticillaris lichen extracts and fumarprotocetraric acid on the early growth of A. cepa (IPA 6) germinated seedlings depends on their chemical composition and concentration, respectively.
Vicente, Carlos   +2 more
core  

Simultaneous quantification of 12 different nucleotides and nucleosides released from renal epithelium and in human urine samples using ion-pair reversed-phase HPLC [PDF]

open access: yes, 2012
Nucleotides and nucleosides are not only involved in cellular metabolism but also act extracellularly via P1 and P2 receptors, to elicit a wide variety of physiological and pathophysiological responses through paracrine and autocrine signalling pathways.
Alberto Contreras-Sanz   +60 more
core   +2 more sources

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