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Total 79 results found since Jan 2013.

siRNA as a tool to improve the treatment of brain diseases: Mechanism, targets and delivery.
Abstract As the population ages, brain pathologies such as neurodegenerative diseases and brain cancer increase their incidence, being the need to find successful treatments of upmost importance. Drug delivery to the central nervous system (CNS) is required in order to reach diseases causes and treat them. However, biological barriers, mainly blood-brain barrier (BBB), are the key obstacles that prevent the effectiveness of possible treatments due to their ability to strongly limit the perfusion of compounds into the brain. Over the past decades, new approaches towards overcoming BBB and its efflux transporters ha...
Source: Ageing Research Reviews - March 18, 2015 Category: Genetics & Stem Cells Authors: Gomes MJ, Martins S, Sarmento B Tags: Ageing Res Rev Source Type: research

Delivering siRNA Compounds During HOPE to Modulate Organ Function: A Proof-of-concept Study in a Rat Liver Transplant Model
Conclusions. FAS inhibition through siRNA therapy decreases the severity of IRI after LT in a SCS protocol; however the association of siRNA therapy with a HOPE perfusion model is very challenging. Future studies using better designed siRNA compounds and appropriate doses are required to prove the siRNA therapy effectiveness during liver HOPE liver perfusion.
Source: Transplantation - August 1, 2022 Category: Transplant Surgery Tags: Original Basic Science Source Type: research

Inhibition of human hepatocellular carcinoma tumor angiogenesis by siRNA silencing of VEGF via hepatic artery perfusion.
CONCLUSIONS: Our data demonstrated that VEGF silencing could suppress cells proliferation, promote cells apoptosis and reduce HCC angiogenesis through inactivation of VEGF/PI3K/AKT signaling pathway. PMID: 26744866 [PubMed - in process]
Source: European Review for Medical and Pharmacological Sciences - January 15, 2016 Category: Drugs & Pharmacology Tags: Eur Rev Med Pharmacol Sci Source Type: research

Tangshen Formula Alleviates Hepatic Steatosis by Inducing Autophagy Through the AMPK/SIRT1 Pathway
Conclusion In conclusion, the present study demonstrated that autophagy was involved in relieving the effects of TSF against NAFLD, which were mediated by the AMPK/SIRT1 pathway (Figure 7D). These findings may improve our current understanding of the role of TSF in treating hepatic steatosis and provide an experimental basis for the clinical application of TSF in NAFLD and its related metabolic syndrome. Ethics Statement This study was carried out in accordance with the recommendations in the Guide for the Care and Use of Laboratory Animals of the National Institutes of Health. The protocol was approved by the Ethics Co...
Source: Frontiers in Physiology - April 25, 2019 Category: Physiology Source Type: research

Naked caspase 3 small interfering RNA is effective in cold preservation but not in autotransplantation of porcine kidneys
Conclusions: Naked caspase 3 siRNA administered into the kidney was effective in cold preservation but not enough to protect posttransplant kidneys, which might be because of systemic complementary responses overcoming local effects.
Source: Journal of Surgical Research - July 27, 2012 Category: Surgery Authors: Cheng Yang, Yichen Jia, Tian Zhao, Yinjia Xue, Zitong Zhao, Junlin Zhang, Jina Wang, Xuanchuan Wang, Yongyin Qiu, Miao Lin, Dong Zhu, Guisheng Qi, Yue Qiu, Qunye Tang, Ruiming Rong, Ming Xu, Sujie Ni, Bin Lai, Michael L. Nicholson, Tongyu Zhu, Bin Yang Tags: Transplantation/Immunology Source Type: research

Nanotherapy Silencing the Interleukin-8 Gene Produces Regression of Prostate Cancer by Inhibition of Angiogenesis.
This study examines the role of IL-8 in the pathogenesis of metastatic prostate cancer. We developed a biocompatible, cationic polylactide (CPLA) nanocarrier to complex with and efficiently deliver IL-8 siRNA to CaP cells in vitro and in vivo. CPLA IL-8 siRNA nanocomplexes (nanoplexes) protect siRNA from rapid degradation, are nontoxic, have a prolonged lifetime in circulation, and their net positive charge facilitates penetration of cell membranes and subsequent intracellular trafficking. Administration of CPLA IL-8 siRNA nanoplexes to immunodeficient mice bearing human CaP tumors produced significant antitumor activities...
Source: Immunology - May 8, 2016 Category: Allergy & Immunology Authors: Aalinkeel R, Nair B, Chen CK, Mahajan SD, Reynolds JL, Zhang H, Sun H, Sykes DE, Chadha KC, Turowski SG, Bothwell KD, Seshadri M, Chen C, Schwartz SA Tags: Immunology Source Type: research

IGF-1 regulates Ang II and VEGF signaling pathways in retinal neovascularization.
CONCLUSIONS: The occurrence of retinal neovascularization is related to the reduction of IGF-1 expression and the increase of Ang II and VEGF. PMID: 30338783 [PubMed - in process]
Source: European Review for Medical and Pharmacological Sciences - October 21, 2018 Category: Drugs & Pharmacology Tags: Eur Rev Med Pharmacol Sci Source Type: research

Endothelial deletion of mTORC1 protects against hindlimb ischemia in diabetic mice via activation of autophagy, attenuation of oxidative stress and alleviation of inflammation.
In conclusion, our present study demonstrates that endothelial mTORC1 deletion protects against hindlimb ischemic injury in diabetic mice possibly via activation of autophagy, attenuation of oxidative stress and alleviation of inflammation. Therapeutics targeting mTORC1 may therefore represents a promising strategy to rescue limb ischemia in diabetes mellitus. PMID: 28473248 [PubMed - as supplied by publisher]
Source: Free Radical Biology and Medicine - May 1, 2017 Category: Biology Authors: Fan W, Han D, Sun Z, Ma S, Gao L, Chen J, Li X, Li X, Fan M, Li C, Hu D, Wang Y, Cao F Tags: Free Radic Biol Med Source Type: research

Upregulated ClC3 channels/transporters elicit swelling-activated Cl < sup > - < /sup > currents and induce excessive cell proliferation in idiopathic pulmonary arterial hypertension
Biol Pharm Bull. 2022 Aug 20. doi: 10.1248/bpb.b22-00513. Online ahead of print.ABSTRACTPulmonary arterial hypertension (PAH) is characterized by vascular remodeling of the pulmonary artery, which is mainly attributed to the excessive proliferation of pulmonary arterial smooth muscle cells (PASMCs) comprising the medial layer of pulmonary arteries. The activity of ion channels associated with cytosolic Ca2+ signaling regulates the pathogenesis of PAH. Limited information is currently available on the role of Cl- channels in PASMCs. Therefore, the functional expression of ClC3 channels/transporters was herein investigated i...
Source: Biological and Pharmaceutical Bulletin - August 21, 2022 Category: Drugs & Pharmacology Authors: Taiki Amano Aya Yamamura Moe Fujiwara Seiji Hirai Rubii Kondo Yoshiaki Suzuki Hisao Yamamura Source Type: research