Results 71 to 80 of about 38,324 (259)

Chicken Coccidiosis in Peri-Urban Family Farming in Two South American Countries: Prevalence and Circulating Eimeria spp.

open access: yesAnimals
Family poultry production systems (FPPSs) in Chile and Argentina produce high-quality and nutritious food. However, little is known about chicken coccidiosis in these production systems. This work aimed to determine the Eimeria sp.
Mariela L. Tomazic   +10 more
doaj   +1 more source

Comparison of Electrochemical Immunosensors and Aptasensors for Detection of Small Organic Molecules in Environment, Food Safety, Clinical and Public Security

open access: yesBiosensors, 2016
We review here the most frequently reported targets among the electrochemical immunosensors and aptasensors: antibiotics, bisphenol A, cocaine, ochratoxin A and estradiol.
Benoit Piro   +4 more
doaj   +1 more source

Dual targeting of cancer-related human matrix metalloproteinases and carbonic anhydrases by chiral N-(biarylsulfonyl)-phosphonic acids

open access: yesJournal of Enzyme Inhibition and Medicinal Chemistry, 2017
A series of nanomolar phosphonate matrix metalloproteinase (MPP) inhibitors was tested for inhibitory activity against a panel of selected human carbonic anhydrase (CA, EC 4.2.1.1) isozymes, covering the cancer-associated CA IX and XII.
Grazia Luisi   +8 more
doaj   +1 more source

DEVELOPMENT AND VALIDATION OF A SIMPLE AND FAST METHOD FOR SULFONAMIDES, TETRACYCLINES AND MACROLIDES IN HONEY USING LC-MS/MS

open access: yesDrug Analytical Research, 2018
Antibacterial are widely used in veterinary applications for diseases treatment and prophilatic purposes. Inadequate uses of these drugs can lead of undesirable residues in honey for consumption.
Cristina Belissimo Ribeiro   +5 more
doaj   +1 more source

Durch anomere Amide ermöglichte divergente Synthese unsymmetrischer Harnstoffe, Carbamate, Thioester und Amide aus Aldehyden

open access: yesAngewandte Chemie, EarlyView.
Eine divergente Aldehyd‐Funktionalisierungssequenz, ermöglicht durch ein anomeres Amid, erlaubt den Ein‐Topf‐Zugang zu unsymmetrischen Harnstoffen, Carbamaten, Thiocarbamaten, Thioestern und Amiden. Entscheidend für diese Transformation ist die Bildung von N‐Boc‐Hydroxamat‐Intermediaten, die als Plattformen für eine orthogonale Aktivierung über Lossen ...
Jasper L. Tyler   +6 more
wiley   +1 more source

A randomized, pilot trial comparing full versus escalating dose regimens for the desensitization of AIDS patients allergic to sulfonamides

open access: yesBrazilian Journal of Infectious Diseases
Sulfonamides are drugs extensively used in the management of AIDS patients. However, the use of sulfonamides is often associated with the development of allergic reactions, provoking the substitution of the drug (by another that may be less effective ...
Andrea Straatmann   +3 more
doaj   +1 more source

Kinase Inhibitors that Increase the Sensitivity of Methicillin Resistant Staphylococcus aureus to β-Lactam Antibiotics

open access: yesPathogens, 2015
Staphylococcus aureus are Gram-positive bacteria that are the leading cause of recurrent infections in humans that include pneumonia, bacteremia, osteomyelitis, arthritis, endocarditis, and toxic shock syndrome.
Jay Vornhagen   +5 more
doaj   +1 more source

Unified Synthesis of Unconventional α‐Polyhalogenated Amines Through Hydroaminoalkylation

open access: yesAngewandte Chemie International Edition, EarlyView.
A unified, redox‐neutral method that transforms alkenes and alkynes into α‐polyhalomethyl amines using stable hemiaminal reagents is reported. This approach enables access to CF3, CF2H, CF2Cl, and CFClH motifs, expanding halogenated amine space with broad substrate scope, functional group tolerance, and applicability to late‐stage modification of drug ...
Angela K. Hofmeister   +9 more
wiley   +1 more source

Removal of nutrients from water column and physiological responses of Vallisneria natans under sulfonamide stress

open access: yesJournal of Freshwater Ecology, 2019
For a better understanding of the metabolic adaptations to sulfonamide (SA) stress in submerged macrophytes, the alterations of nutrient element uptake and secondary metabolism were studied in the leaves of Vallisneria natans (Lour.) Hara exposed to 0 ...
Houtao Xu   +4 more
doaj   +1 more source

An overview of structurally diversified anticonvulsant agents

open access: yesActa Pharmaceutica, 2019
There are several limited approaches to treat epilepsy in hospitals, for example, using medicines, surgery, electrical stimulation and dietary interventions.
Al-Otaibi Faisal
doaj   +1 more source

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