RUSI JournalPub Date : 2022-01-01DOI: 10.1177/15330338221085376
Nihal Mostafa, Ahmed Salem, Somaya Z Mansour, Sawsan M El-Sonbaty, Fatma S M Moawed, Eman I Kandil
{"title":"Rationale for Tailoring an Alternative Oncology Trial Using a Novel Gallium-Based Nanocomplex: Mechanistic Insights and Preclinical Challenges.","authors":"Nihal Mostafa, Ahmed Salem, Somaya Z Mansour, Sawsan M El-Sonbaty, Fatma S M Moawed, Eman I Kandil","doi":"10.1177/15330338221085376","DOIUrl":"10.1177/15330338221085376","url":null,"abstract":"<p><p><b>Introduction:</b> In the fight against cancer, cisplatin is most widely used as a clinical mainstay for the chemotherapy of various human cancers. Meanwhile, its cytotoxic profile, as well as drug resistance, limits its widespread application. The goal of precision medicine is to tailor an optimized therapeutic program based on the biology of the disease. Recently, nanotechnology has been demonstrated to be promising in this scenario. <b>Objective:</b> The current work provides a rationale for the design of an alternative oncology trial for the treatment of hepatocarcinogenesis using a novel eco-friendly nanocomplex, namely gallic acid-coated gallium nanoparticles. Moreover, the study tests whether the antineoplastic efficacy of gallic acid-coated gallium nanoparticles could be enhanced or not when it is administrated together with cisplatin. <b>Methods:</b> The work comprised a series of both <i>in vitro</i> and <i>in vivo</i> investigations. The <i>in vivo</i> therapeutic efficacy of such treatments, against diethylnitrosamine-induced hepatocarcinogenesis, was strictly evaluated by tracking target genes expressions, iron homeostasis, diverse biomarkers alterations, and lastly, routine paraclinical investigations were also assessed. <b>Results:</b> The <i>in vitro</i> biological evaluation of gallic acid-coated gallium nanoparticles in a HepG-2 cancer cell line established its superior cytotoxicity. Else more, the results of the <i>in vivo</i> experiment highlighted that gallic acid-coated gallium nanoparticles could diminish key hallmarks of cancer by ameliorating most of the investigated parameters. This was well-appreciated with the histopathological findings of the liver architectures of the treated groups. <b>Conclusions:</b> Our findings suggest that novel biogenic Ga-based nanocomplexes may potentially present new hope for the development of alternative liver cancer therapeutics, which should attract further scientific interest.</p>","PeriodicalId":51795,"journal":{"name":"RUSI Journal","volume":"99 1","pages":"15330338221085376"},"PeriodicalIF":2.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8990695/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81621521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
RUSI JournalPub Date : 2020-04-15DOI: 10.1080/03071847.2020.1769299
E. Grove, M. Alexander
{"title":"Obituary: Professor Colin S Gray","authors":"E. Grove, M. Alexander","doi":"10.1080/03071847.2020.1769299","DOIUrl":"https://doi.org/10.1080/03071847.2020.1769299","url":null,"abstract":"","PeriodicalId":51795,"journal":{"name":"RUSI Journal","volume":"165 1","pages":"10-11"},"PeriodicalIF":1.0,"publicationDate":"2020-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03071847.2020.1769299","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43731948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Obstetric and perinatal outcomes in pregnant women with Takayasu’s arteritis: single centre experience over five years","authors":"Liji Sarah David, Manisha Madhai Beck, Manish Kumar, Sudha Jasmine Rajan, Debashish Danda, Reeta Vijayaselvi","doi":"10.4274/jtgga.galenos.2019.2019.0115","DOIUrl":"10.4274/jtgga.galenos.2019.2019.0115","url":null,"abstract":"<p><strong>Objective: </strong>To study obstetric and perinatal outcomes among pregnant women with Takayasu arteritis (TA), attending our hospital for pregnancy and childbirth between January 2011 to December 2016.</p><p><strong>Material and methods: </strong>Retrospective study was carried out by abstracting clinical charts on all pregnant women with TA who underwent antenatal care and/or delivery in our hospital during this period. American College of Rheumatology criteria was used for diagnosis of TA. Sixteen women with TA were included in the study. Maternal demographic data, stage of disease, complications related to disease, details of treatment taken prior to pregnancy, pregnancy outcomes, and neonatal outcomes were studied.</p><p><strong>Results: </strong>Forty-four percentage (7/16) belonged to type 5 angiographic type, however the same proportion (7/16) had undergone surgical corrections prior to pregnancy and the majority (15/16) were on medical management. Only three women (19%) were diagnosed during pregnancy. Most did not have active disease measured by Kerr’s criteria (n=12; 75%), and Indıan Takayasu clinical activity scores A. Chronic hypertension was the commonest antenatal complication (56.2%), nearly one-third had growth restricted babies and 25% had preterm labour. There were no cardiovascular events, no maternal deaths, nor fetal or neonatal deaths. Two-thirds of our women were delivered by caesarean section.</p><p><strong>Conclusion: </strong>Preconceptional counselling is of paramount importance in women with TA. Good maternal and fetal outcomes are observed with close antenatal surveillance and multidisciplinary care. Pregnancy should be planned during disease remission, with good antenatal care, close monitoring of clinical symptoms, early diagnosis and treatment of complications.</p>","PeriodicalId":51795,"journal":{"name":"RUSI Journal","volume":"19 1","pages":"15-23"},"PeriodicalIF":1.4,"publicationDate":"2020-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7075400/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81679244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
RUSI JournalPub Date : 2019-07-30Epub Date: 2019-07-16DOI: 10.1073/pnas.1903949116
Dongjun Liang, Kane Wu, Reika Tei, Timothy W Bumpus, Johnny Ye, Jeremy M Baskin
{"title":"A real-time, click chemistry imaging approach reveals stimulus-specific subcellular locations of phospholipase D activity.","authors":"Dongjun Liang, Kane Wu, Reika Tei, Timothy W Bumpus, Johnny Ye, Jeremy M Baskin","doi":"10.1073/pnas.1903949116","DOIUrl":"10.1073/pnas.1903949116","url":null,"abstract":"<p><p>The fidelity of signal transduction requires spatiotemporal control of the production of signaling agents. Phosphatidic acid (PA) is a pleiotropic lipid second messenger whose modes of action differ based on upstream stimulus, biosynthetic source, and site of production. How cells regulate the local production of PA to effect diverse signaling outcomes remains elusive. Unlike other second messengers, sites of PA biosynthesis cannot be accurately visualized with subcellular precision. Here, we describe a rapid, chemoenzymatic approach for imaging physiological PA production by phospholipase D (PLD) enzymes. Our method capitalizes on the remarkable discovery that bulky, hydrophilic <i>trans</i>-cyclooctene-containing primary alcohols can supplant water as the nucleophile in the PLD active site in a transphosphatidylation reaction of PLD's lipid substrate, phosphatidylcholine. The resultant <i>trans</i>-cyclooctene-containing lipids are tagged with a fluorogenic tetrazine reagent via a no-rinse, inverse electron-demand Diels-Alder (IEDDA) reaction, enabling their immediate visualization by confocal microscopy in real time. Strikingly, the fluorescent reporter lipids initially produced at the plasma membrane (PM) induced by phorbol ester stimulation of PLD were rapidly internalized via apparent nonvesicular pathways rather than endocytosis, suggesting applications of this activity-based imaging toolset for probing mechanisms of intracellular phospholipid transport. By instead focusing on the initial 10 s of the IEDDA reaction, we precisely pinpointed the subcellular locations of endogenous PLD activity as elicited by physiological agonists of G protein-coupled receptor and receptor tyrosine kinase signaling. These tools hold promise to shed light on both lipid trafficking pathways and physiological and pathological effects of localized PLD signaling.</p>","PeriodicalId":51795,"journal":{"name":"RUSI Journal","volume":"162 1","pages":"15453-15462"},"PeriodicalIF":0.0,"publicationDate":"2019-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6681737/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81661029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
RUSI JournalPub Date : 2018-09-03DOI: 10.1080/03071847.2018.1552453
James K Wither
{"title":"Svalbard: NATO’s Arctic ‘Achilles’ Heel’","authors":"James K Wither","doi":"10.1080/03071847.2018.1552453","DOIUrl":"https://doi.org/10.1080/03071847.2018.1552453","url":null,"abstract":"The Arctic has been characterised as an area of low tension in relations between Russia and NATO states in the region. However, there are several emerging issues that could give rise to tensions in...","PeriodicalId":51795,"journal":{"name":"RUSI Journal","volume":"163 1","pages":"28-37"},"PeriodicalIF":1.0,"publicationDate":"2018-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03071847.2018.1552453","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44869494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
RUSI JournalPub Date : 2018-07-04DOI: 10.1080/03071847.2018.1522046
Aniseh Bassiri Tabrizi
{"title":"Informal Groups of States: A Growing Role in EU Foreign Policy After Brexit?","authors":"Aniseh Bassiri Tabrizi","doi":"10.1080/03071847.2018.1522046","DOIUrl":"https://doi.org/10.1080/03071847.2018.1522046","url":null,"abstract":"In this article, Aniseh Bassiri Tabrizi argues that, in the aftermath of Brexit, informal groups of states are likely to become a frequently adopted tool for EU member states when dealing with foreign policy issues. Because of their features, such frameworks enable the UK to continue to cooperate with the EU on an ad hoc basis on areas of mutual concern. Further, they grant a much-needed flexibility compared with treaty-based provisions.","PeriodicalId":51795,"journal":{"name":"RUSI Journal","volume":"163 1","pages":"62 - 70"},"PeriodicalIF":1.0,"publicationDate":"2018-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03071847.2018.1522046","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59637256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
RUSI JournalPub Date : 2018-07-04DOI: 10.1080/03071847.2018.1529917
Diana Clark Gill
{"title":"Mutual Radicalization: How Groups and Nations Drive Each Other to Extremes","authors":"Diana Clark Gill","doi":"10.1080/03071847.2018.1529917","DOIUrl":"https://doi.org/10.1080/03071847.2018.1529917","url":null,"abstract":"","PeriodicalId":51795,"journal":{"name":"RUSI Journal","volume":"163 1","pages":"114 - 115"},"PeriodicalIF":1.0,"publicationDate":"2018-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03071847.2018.1529917","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59637500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
RUSI JournalPub Date : 2018-01-02DOI: 10.1080/03071847.2018.1442669
Damian P O’Connor
{"title":"Kruger’s War: The Truth Behind the Myths of the Boer War","authors":"Damian P O’Connor","doi":"10.1080/03071847.2018.1442669","DOIUrl":"https://doi.org/10.1080/03071847.2018.1442669","url":null,"abstract":"","PeriodicalId":51795,"journal":{"name":"RUSI Journal","volume":"163 1","pages":"103 - 104"},"PeriodicalIF":1.0,"publicationDate":"2018-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03071847.2018.1442669","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59637049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}