Results 51 to 60 of about 326,787 (224)

Combination of GC-MS Molecular Networking and Larvicidal Effect against Aedes aegypti for the Discovery of Bioactive Substances in Commercial Essential Oils

open access: yesMolecules, 2022
Dengue is a neglected disease, present mainly in tropical countries, with more than 5.2 million cases reported in 2019. Vector control remains the most effective protective measure against dengue and other arboviruses.
Alan Cesar Pilon   +8 more
doaj   +1 more source

O risco de interações farmacocinéticas associado ao consumo de produtos naturais por doentes oncológicos [PDF]

open access: yes, 2016
Monografia realizada no âmbito da unidade de Estágio Curricular do Mestrado Integrado em Ciências Farmacêuticas, apresentada à Faculdade de Farmácia da Universidade de CoimbraOs doentes oncológicos recorrem frequentemente a produtos naturais ...
Jesus, Nuno Rocha de
core  

Porous Organic Polymers for Efficient and Selective SO2 Capture from CO2‐rich Flue Gas

open access: yesAngewandte Chemie, Volume 136, Issue 26, June 21, 2024.
The capture of a low concentration SO2 is of utmost importance as it is responsible for many health and environmental issues. Herein we unveiled two porous organic polymers encompassing a high content of imidazole pockets to interact preferentially with SO2 vs CO2 which can remove trace amount of SO2 from CO2‐containing streams with almost infinite ...
Jiangtao Jia   +9 more
wiley   +2 more sources

Requisitos de qualidade em óleos essenciais : a importância das monografias da Farmacopeia Europeia e das normas ISO [PDF]

open access: yes, 2011
Os óleos essenciais são produtos naturais utilizados por diversas indústrias, entre as quais se destacam a indústria alimentar e a indústria farmacêutica.
Costa, Maria do Céu   +3 more
core  

Produtos naturais anti - Helicobacter pylori: revisão

open access: yesRevista Ibero-Americana de Ciências Ambientais, 2018
A infecção pela bactéria Helicobacter pylori é considerada um problema de saúde pública, com intrínseca relação saúde e ambiente, a infecção bacteriana crônica mais comum no mundo, com alta prevalência em países em desenvolvimento. O uso de produtos naturais voltados a inovação medicamentosa, aumenta o interesse por novos princípios ativos a base de ...
Mariana Lenina Menezes Aleixo   +2 more
openaire   +2 more sources

Comprehensive Molecular Modeling Analysis of Betulin, a Triterpene Isolated from Miconia burchellii (Melastomataceae) Native to the Brazilian Cerrado

open access: yesChemistrySelect, Volume 10, Issue 40, October 27, 2025.
Betulin, isolated from the Brazilian Cerrado plant Miconia burchellii, was comprehensively characterized using X‐ray diffraction, DFT, and molecular modeling. Solid‐state analysis revealed stabilizing O···H and H···H contacts, while DFT calculations (HOMO–LUMO gap: 9.38 eV) indicated moderate stability.
Marianna C. Silva   +8 more
wiley   +1 more source

Anxiety behavior in adult Zebrafish modulated by the alkaloid fraction of Cissampelos sympodialis Eichl. roots

open access: yesPhytomedicine Plus
Cissampelos sympodialis (Menispermaceae), a species endemic to Brazil, it is used in folk medicine to treat inflammation and respiratory disorders. These activities are probably associated with the presence of alkaloids in the plant.
Johnatan Wellisson da Silva Mendes   +10 more
doaj   +1 more source

Mechanisms Underlying Vasorelaxation Induced in Rat Aorta by Galetin 3,6-Dimethyl Ether, a Flavonoid from Piptadenia stipulacea (Benth.) Ducke

open access: yesMolecules, 2014
In this study, we investigated the relaxant action of galetin 3,6-dimethyl ether (FGAL) on rat aorta. The flavonoid relaxed both PMA‑ and phenylephrine (Phe)-induced contractions (pD2 = 5.36 ± 0.11 and 4.17 ± 0.10, respectively), suggesting the ...
Cibério L. Macêdo   +7 more
doaj   +1 more source

USO DE PRODUTOS NATURAIS COM FINS TERAPÊUTICOS EM PEDIATRIA [PDF]

open access: yesEgitania Sciencia, 2017
A literatura tem demonstrado que, no tratamento de doenças infantis, o uso de produtos naturais é particularmente adequado. Entendemos útil dispor de agentes terapêuticos cuja via de metabolização seja mais conhecida. O amplo índice terapêutico de muitos fitoterápicos e a sua tolerância criam boas perspetivas para a infância.
Nascimento, Luís   +2 more
openaire   +2 more sources

Nutraceutical Blends Promote Weight Loss, Inflammation Reduction, and Better Sleep: The Role of Faecalibacterium prausnitzii in Overweight Adults–A Double‐Blind Trial

open access: yesMolecular Nutrition &Food Research, Volume 69, Issue 17, September 2025.
This study explored how a 90‐day nutraceutical blend with prebiotics, minerals, and silymarin affects the gut‐brain axis in overweight adults. Results showed improved gut microbiota, reduced inflammation, and better sleep, mood, and quality of life, suggesting a strong link between gut health and mental well‐being.
Aline Boveto Santamarina   +15 more
wiley   +1 more source

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