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Drug repurposing of dextromethorphan as a cellular target for the management of influenza
ConclusionInfluenza viruses continue to emerge and cause infection (including pandemics) in humans, so there remains a critical need to advance the understanding of influenza treatment. Our results demonstrated reduced hospitalization rates for influenza patients treated with DM. Further research on cellular targets and / or DM are warranted for the treatment of influenza.
Source: Pharmacotherapy: The Journal of Human Pharmacology and Drug Therapy - August 24, 2021 Category: Drugs & Pharmacology Authors: Tammy H. Cummings, Joseph Magagnoli, James W. Hardin, S. Scott Sutton Tags: ORIGINAL RESEARCH ARTICLE Source Type: research

Current Development of siRNA Bioconjugates: From Research to the Clinic
In this study, it was shown that the main factor determining the nature of the biodistribution of conjugates is their lipophilicity. Conjugates of siRNA with lower lipophilicity; i.e., derivatives of retinoic acid, lithocholic acid, and docosahexanoic acid with greater efficiency than cholesterol conjugates accumulated in the kidneys, bladder, and lungs of the mouse after subcutaneous injection (Biscans et al., 2018). This fact is consistent with previous data that showed that more lipophilic conjugates bind more efficiently to serum components, and thus are not excreted by the kidneys (Wolfrum et al., 2007; Osborn et al.,...
Source: Frontiers in Pharmacology - April 25, 2019 Category: Drugs & Pharmacology Source Type: research

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

Conjugates of HA2 with octaarginine-grafted HPMA copolymer offer effective siRNA delivery and gene silencing in cancer cells.
Abstract The key for successful gene silencing is to design a safe and efficient siRNA delivery system for the transfer of therapeutic nucleic acids into the target cells. Here, we describe the design of hydrophilic N-(2-hydroxypropyl)methacrylamide (HPMA) copolymer displaying multiple copies of octaarginine (R8) and its use in promoting the effective delivery of small interfering RNA (siRNA) molecules intracellularly. Fluorescein-5-isothiocyanate (FITC)-labeled HPMA copolymer-bound R8 (P-R8-FITC) was synthesized with increasing R8 molar ratios (4 to 9.5 mol-%) to define the optimal R8 content that allowed the pol...
Source: European Journal of Pharmaceutics and Biopharmaceutics - September 30, 2016 Category: Drugs & Pharmacology Authors: Golan M, Feinshtein V, David A Tags: Eur J Pharm Biopharm Source Type: research

Inhalable Dry Powder Formulations of siRNA and pH-Responsive Peptides with Antiviral Activity Against H1N1 Influenza Virus
Molecular PharmaceuticsDOI: 10.1021/mp500745v
Source: Molecular Pharmaceutics - January 30, 2015 Category: Drugs & Pharmacology Authors: Wanling Liang, Michael Y. T. Chow, Pui Ngan Lau, Qi Tony Zhou, Philip C. L. Kwok, George P. H. Leung, A. James Mason, Hak-Kim Chan, Leo L. M. Poon and Jenny K. W. Lam Source Type: research