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Plant-Derived Alkaloids: The Promising Disease-Modifying Agents for Inflammatory Bowel Disease
Conclusion This paper summarizes the current findings regarding the anti-colitis activity of plant-derived alkaloids and shows how these alkaloids exhibit significant and beneficial effects in alleviating colonic inflammation. These natural alkaloids are not only promising agents for IBD treatment but are also components for developing new wonder drugs. However, the underlying molecular mechanisms or toxicological evaluation of most plant-derived alkaloids still require much scientific research, and their actual efficacies for IBD patients have not been verified well in field research. Thus, further clinical trials to elu...
Source: Frontiers in Pharmacology - April 11, 2019 Category: Drugs & Pharmacology Source Type: research

Esculentoside A Attenuates Allergic Airway Inflammation via Activation of the Nrf-2 Pathway
Conclusions: This is the first study to illustrate that EsA acts as a novel Nrf-2 activator, which modulates the oxidative stress pathway to improve lung injury and ameliorate the development of airway inflammation.Int Arch Allergy Immunol 2015;167:280-290
Source: International Archives of Allergy and Immunology - October 24, 2015 Category: Allergy & Immunology Source Type: research

Ephedrine induced Thioredoxin-1 expression through β-adrenergic receptors/Cyclic AMP/protein kinase A/dopamine- and Cyclic AMP-regulated phosphoprotein signaling pathway.
In this study, we found that Eph induced Trx-1 expression, which was inhibited by propranolol (β-adrenergic receptors inhibitor), but not by phenoxybenzamine (α-adrenergic receptors inhibitor) in rat pheochromocytoma PC12 cells. Moreover, the increase of Trx-1 expression was inhibited by SQ22536 (adenylyl cyclase inhibitor) and H-89 (protein kinase A inhibitor). Interestingly, the effect of Eph on dopamine- and Cyclic AMP-regulated phosphoprotein (DARPP-32) was similar to Trx-1. Thus, the relationship between Trx-1 and DARPP-32 was further studied. The DARPP-32 siRNA significantly reduced Trx-1 expression, but Trx-1 siRN...
Source: Cellular Signalling - February 14, 2013 Category: Cytology Authors: Jia JJ, Zeng XS, Li Y, Ma S, Bai J Tags: Cell Signal Source Type: research