Results 51 to 60 of about 114,653 (180)

Metabolic profile and root development of Hypericum perforatum L. in vitro roots under stress conditions due to chitosan treatment and culture time [PDF]

open access: yes, 2016
The responses of Hypericum perforatum root cultures to chitosan elicitation had been investigated through 1H-NMR-based metabolomics associated with morpho-anatomical analyses.
Alessio eValletta   +11 more
core   +5 more sources

Ashwagandha: Is It Safe? Part 2: A Preclinical Evidence Review

open access: yesPhytotherapy Research, EarlyView.
ABSTRACT The preclinical evidence for the safety of ashwagandha (Withania somnifera (L.) Dunal, AS) is reviewed, and its preparations (extracts) and constituents, from the general toxicity in animal models to in vitro and cell culture studies, which may elucidate mechanisms of action and explain clinical case reports.
Elizabeth M. Williamson, Thomas Brendler
wiley   +1 more source

Standardization and Quality Control of the Herbal Medicine Mist Nibima, Employed to Treat Malaria and COVID-19, Using Physicochemical and Organoleptic Parameters and Quantification of Chemical Markers via UHPLC-MS/MS

open access: yesInternational Journal of Analytical Chemistry, 2021
Mist Nibima is an essential herbal medicine used to treat malaria, bacterial, yeast, and COVID-19 infections. However, the drug has not been standardized and its active chemical ingredients are also not known.
Emmanuel Kofi Kumatia   +3 more
doaj   +1 more source

Chromosomal control of wheat endosperm proteins. A critical review. [PDF]

open access: yes, 1977
Progress made in the chromosomal location of structural genes for wheat endosperm proteins, and in the study of the regulation and quantitative expression of these genes, by using aneuploids and by related techniques, is critically evaluated ...
Aragoncillo Ballesteros, Cipriano   +3 more
core   +2 more sources

De novo formation of an aggregation pheromone precursor by an isoprenyl diphosphate synthase-related terpene synthase in the harlequin bug. [PDF]

open access: yes, 2018
Insects use a diverse array of specialized terpene metabolites as pheromones in intraspecific interactions. In contrast to plants and microbes, which employ enzymes called terpene synthases (TPSs) to synthesize terpene metabolites, limited information ...
Ghosh, Saikat Kumar B   +17 more
core   +3 more sources

Environmentally Friendly Lubricants: The Role of Biopolymers in Modern Tribology

open access: yesSPE Polymers, Volume 7, Issue 3, July 2026.
Biomass‐derived biopolymers modified for green tribology applications with reduced friction, wear, and environmental footprint. ABSTRACT Energy losses due to friction and wear are a major challenge for the energy efficiency and sustainability of mechanical systems, motivating the development of green tribology strategies.
Zineb Chiki   +6 more
wiley   +1 more source

Toxicological characteristics of dental gel ‘Matripin’

open access: yesВестник медицинского института «Реавиз»: Реабилитация, врач и здоровье, 2020
We performed toxicological evaluation of dental gel ‘Matripin.’ Objective: to assess acute and chronic toxicity of dental gel ‘Matripin’ on mature rats. Animals were kept in standard vivarium conditions.
L. I. Arystan   +4 more
doaj  

Metabolomic Differentiation of Malpighiaceae From Dry and Humid Tropics via UHPLC‐MS/MS and Chemometrics

open access: yesAnalytical Science Advances, Volume 7, Issue 1, June 2026.
ABSTRACT Various factors can trigger water stress in plants, particularly in those growing in dry tropical regions. To survive under such conditions, plants produce metabolites with adaptive functions. However, metabolomic data on the leaves of Malpighiaceae species cultivated in both dry and humid tropical areas of Brazil remain scarce.
Jaqueline Munise Guimarães da Silva   +2 more
wiley   +1 more source

Arginase from kiwifruit: properties and seasonal variation [PDF]

open access: yes, 1988
The in vitro activity of arginase (EC 3.5.3.1) was investigated in youngest-mature leaves and roots (1-3 mm diameter) of kiwifruit vines (Actinidia deliciosa var. deliciosa) during an annual growth cycle, and enzyme from root material partially purified.
Dwek, RA   +9 more
core   +4 more sources

The soil mosaic hypothesis: a synthesis of multi-trophic diversification via soil heterogeneity

open access: yesIdeas in Ecology and Evolution, 2017
Myriad unexplored mechanisms potentially drive ecological speciation and could help explain global variation in diversity. Here, we develop a novel hypothesis focused on variation in biotic, chemical, and physical properties of soil as a factor ...
Andrea E. Glassmire   +6 more
doaj  

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