Results 31 to 40 of about 225,386 (346)

Development and Validation of Discriminative Dissolution Method for Metformin Immediate-Release Film-Coated Tablets

open access: yesJournal of Analytical Methods in Chemistry, 2019
The purpose of this study was to develop and validate a discriminative dissolution method for the metformin film-coated tablet with immediate release of the active substance that belongs to class III of the Biopharmaceutical Classification System (BCS ...
Ivana Mitrevska   +5 more
doaj   +1 more source

Review on Chemical Constituents and Biological Activity of Piper betle L.

open access: yesShipin gongye ke-ji, 2022
As a “medicine food homology” plant, the Piper betle L. has the characteristics of spicy, slightly sweet, and warm in nature, which can be used for treating cold, cough, stomachache, and eczema.
Tailing JIANG   +9 more
doaj   +1 more source

ANet: Autoencoder-Based Local Field Potential Feature Extractor for Evaluating An Antidepressant Effect in Mice after Administering Kratom Leaf Extracts [PDF]

open access: yesarXiv, 2022
Kratom (KT) typically exerts antidepressant (AD) effects. However, evaluating which form of KT extracts possesses AD properties similar to the standard AD fluoxetine (flu) remained challenging. Here, we adopted an autoencoder (AE)-based anomaly detector called ANet to measure the similarity of mice's local field potential (LFP) features that responded ...
arxiv  

Marine Alkaloid 2,2-Bis(6-bromo-3-indolyl) Ethylamine and Its Synthetic Derivatives Inhibit Microbial Biofilms Formation and Disaggregate Developed Biofilms [PDF]

open access: yes, 2019
The antimicrobial activity of the marine bisindole alkaloid 2,2-bis(6-bromo-3-indolyl) ethylamine (1) and related synthetic analogues (compounds 2–8) against target microorganisms was investigated by Minimum Inhibitory Concentration (MIC) determination ...
Baffone, Wally   +3 more
core   +1 more source

Comprehensive Assessment of Degradation Behavior of Simvastatin by UHPLC/MS Method, Employing Experimental Design Methodology

open access: yesInternational Journal of Analytical Chemistry, 2018
This manuscript describes comprehensive approach for assessment of degradation behavior of simvastatin employing experimental design methodology as scientific multifactorial strategy.
Maja Hadzieva Gigovska   +6 more
doaj   +1 more source

Poison Frog Colors Are Honest Signals Of Toxicity, Particularly For Bird Predators [PDF]

open access: yes, 2012
Antipredator defenses and warning signals typically evolve in concert. However, the extensive variation across taxa in both these components of predator deterrence and the relationship between them are poorly understood.
Cummings, Molly E., Maan, Martine E.
core   +3 more sources

Transaminase‐Triggered Cascades for the Synthesis and Dynamic Kinetic Resolution of Chiral N‐Heterocycles

open access: yesAngewandte Chemie, EarlyView.
A single‐step biocatalytic route to complex indolizidine and quinolizidine alkaloids is described that relies on transaminase‐triggered double intramolecular aza‐Michael methodology. In one case, a retro‐double intramolecular aza‐Michael reaction enables dynamic kinetic resolution. Abstract Biocatalysis is now a well‐established branch of catalysis and
Adam O'Connell   +10 more
wiley   +2 more sources

Optimized genotyping method for identification of bacterial contaminants in pharmaceutical industry

open access: yesActa Pharmaceutica, 2016
Microbiological control is of crucial importance in the pharmaceutical industry regarding the possible bacterial contamination of the environment, water, raw materials and finished products. Molecular identification of bacterial contaminants based on DNA
Stamatoski Borche   +4 more
doaj   +1 more source

Recent Discovery of Heterocyclic Alkaloids from Marine-Derived Aspergillus Species

open access: yesMarine Drugs, 2020
Nitrogen heterocycles have drawn considerable attention due to of their significant biological activities. The marine fungi residing in extreme environments are among the richest sources of these basic nitrogen-containing secondary metabolites. As one of
Kuo Xu   +3 more
doaj   +1 more source

Phytochemical characterization of Tabernanthe iboga root bark and its effects on dysfunctional metabolism and cognitive performance in high-fat-fed C57BL/6J mice [PDF]

open access: yes, 2018
Preparations of the root bark of Tabernanthe iboga have long been used in Central and West African traditional medicine to combat fatigue, as a neuro-stimulant in rituals, and for treatment of diabetes. The principal alkaloid of T.
Akinyeke, Tunde   +11 more
core   +1 more source

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