Characterization of the chemical profile and the effects of ethanolic extracts of Maytenus ilicifolia Mart. ex Reissek on glucose metabolism in normal hyperglycemic rats

2021 ◽  
pp. 114173
Author(s):  
Monica Santin Zanatta Schindler ◽  
Jean Felipe Fossá Calisto ◽  
Katiuska Marins ◽  
Alissara Regginato ◽  
Hemilli Mezzomo ◽  
...  
2021 ◽  
Vol 15 (02) ◽  
pp. 270-279
Author(s):  
Aline Griebler ◽  
Fernanda Weyand Banhuk ◽  
Izabela Virginia Staffen ◽  
Aline Antunes Maciel Bortoluzzi ◽  
Thaís Soprani Ayala ◽  
...  

Introduction: Trypanosoma cruzi is the agent of Chagas’ disease and affects approximately 6-8 million people worldwide. The search for new anti-T. cruzi drugs are relevant because only two drugs exist actually. The objective of this study was to investigate the effect of the extracts from the seeds of Lonchocarpus cultratus on T. cruzi, its cytotoxicity as well as to elucidate its chemical profile. Methodology: The characterization of the extracts was done using 1H-RMN. T. cruzi forms were treated with increasing concentrations of the extracts and after, the percentage of inhibition and IC50 or LC50 were calculated. Murine peritoneal macrophages were treated with different concentrations of the extracts to evaluate the cellular viability. The hemotoxicity was accessed by verifying the levels of hemolysis caused by the extracts on human red blood cells. Results: Chalcones isocordoin and lonchocarpin were detected in the dichloromethane extract, and chalcone lonchocarpin was detected in the hexane extract. The dichloromethane extract showed higher activity against all the forms of T. cruzi compared to the other two extracts, but the hexane showed the best selectivity index. The cytotoxicity observed in murine macrophages was confirmed in human erythrocytes, with dichloromethane extract having the highest toxicity. The methanolic extract showed the lowest anti-T. cruzi activity but was nontoxic to peritoneal murine macrophages and red blood cells. Conclusions: L. cultratus extracts have the potential to be explored for the development of new anti-trypanosomal drugs. This study was the first to demonstrate the action of extracts from the genus Lonchocarpus on infecting forms of T. cruzi.


2020 ◽  
Vol 44 (5) ◽  
Author(s):  
Cheng‐piao Tian ◽  
Ya‐ling Song ◽  
Hai‐tang Xu ◽  
Xing‐dong Yao ◽  
Si‐qi Niu ◽  
...  

2021 ◽  
Vol 8 (3) ◽  
Author(s):  
Ilinka Pećinar ◽  
Djurdja Krstić ◽  
Gianluca Caruso ◽  
Jelena B. Popović-Djordjević

Rosehip (pseudo-fruit) of dog rose ( Rosa canina L.) is highly valued, and owing to nutritional and sensory properties it has a significant place in the food industry. This work represents an innovative report focusing on the evaluation of the phytochemical composition of rosehips (hypanthium and seed) grown in different locations in Serbia, using Raman microspectroscopy combined with multivariate data analysis. Some significant differences arose between the analysed rosehip samples with regard to the chemical profile of both hypanthium parenchyma cells and seed, although no evident discrimination was recorded between the samples of wild and cultivated rosehip. The differences between the hypanthium samples compared were mainly determined by the content of carotenoids, phenolic compounds and polysaccharides, whereas phenolics, polysaccharides (pectin, cellulose and hemicellulose) and lipids (to a lower extent) contributed to the seed sample discrimination. The differences observed between the rosehip samples may be attributed to abiotic factors (growing, ripening and storage conditions), which had a significant impact on the carotenoid and polyphenols biosynthesis.


Diabetes ◽  
2019 ◽  
Vol 68 (Supplement 1) ◽  
pp. 1980-P
Author(s):  
MARTIN L. KÅRHUS ◽  
DAVID P. SONNE ◽  
MARTIN L. THOMASEN ◽  
JENS J. HOLST ◽  
TINA VILSBØLL ◽  
...  

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