<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Aishwarya Ilanko</style></author><author><style face="normal" font="default" size="100%">Ian Edwin Cock</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The Interactive Antimicrobial Activity of Conventional Antibiotics and Petalostigma spp. Extracts Against Bacterial Triggers of some Autoimmune Inflammatory Diseases</style></title><secondary-title><style face="normal" font="default" size="100%">Pharmacognosy Journal</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">ankylosing spondylitis</style></keyword><keyword><style  face="normal" font="default" size="100%">Conventional antimicrobials</style></keyword><keyword><style  face="normal" font="default" size="100%">Drug combinations</style></keyword><keyword><style  face="normal" font="default" size="100%">Efflux pump inhibitor</style></keyword><keyword><style  face="normal" font="default" size="100%">Interaction</style></keyword><keyword><style  face="normal" font="default" size="100%">Medicinal plants</style></keyword><keyword><style  face="normal" font="default" size="100%">multiple sclerosis</style></keyword><keyword><style  face="normal" font="default" size="100%">rheumatoid arthritis</style></keyword><keyword><style  face="normal" font="default" size="100%">Synergy</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2019</style></year><pub-dates><date><style  face="normal" font="default" size="100%">March 2019</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">11</style></volume><pages><style face="normal" font="default" size="100%">292-309</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;&lt;!-- x-tinymce/html --&gt;&lt;strong&gt;Introduction&lt;/strong&gt;: An increase in antibiotic resistance and a corresponding decrease in antimicrobial discovery have directed researchers towards alternative therapies, including plant-based medicines. However, synergistic combinations of plant extracts with conventional antibiotics are a far more effective approach in overcoming resistance and potentiating the activity of antibiotics that are otherwise ineffective against resistant bacterial strains. &lt;strong&gt;Methods&lt;/strong&gt;: In this study, &lt;em&gt;Petalostigma&lt;/em&gt; spp. (native Australian medicinal plants) extracts were combined with a range of conventional antibiotics and tested against various microbial triggers of autoimmune diseases. The fruit and leaves were extracted separately with solvents of varying polarity and investigated for the ability to inhibit bacterial growth using disc diffusion and liquid dilution MIC techniques. &lt;strong&gt;Results&lt;/strong&gt;: The methanolic and water extracts showed low to moderate inhibitory activity against several microbes. However, combinations of the mid-low polarity extracts with conventional antibiotics proved significantly more effective in inhibiting the growth of &lt;em&gt;Proteus mirabilis and Acinetobacter baylyi&lt;/em&gt; (bacterial triggers of rheumatoid arthritis and multiple sclerosis respectively). In total, 14 different combinations proved to be synergistic. Notably, two antibiotics (chloramphenicol and erythromycin) with no inhibitory activity against &lt;em&gt;P. mirabilis&lt;/em&gt; alone were shown to have substantial activity when tested in combination with &lt;em&gt;Petalostigma&lt;/em&gt; spp. extracts. &lt;strong&gt;Conclusion&lt;/strong&gt;: Although the mechanisms of synergy are still unclear, studies indicate that compounds within&lt;em&gt; Petalostigma&lt;/em&gt; spp. may mimic the actions of resistance modifying agents, thus potentiating the activity of several antibiotics that are relatively ineffective alone. Isolation of these agents may be highly beneficial in drug design against several bacteria including the microbial triggers of rheumatoid arthritis and multiple sclerosis.&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">2</style></issue><work-type><style face="normal" font="default" size="100%">Research Article</style></work-type><section><style face="normal" font="default" size="100%">292</style></section><auth-address><style face="normal" font="default" size="100%">&lt;p&gt;&lt;!-- x-tinymce/html --&gt;&lt;/p&gt;

&lt;p&gt;&lt;strong&gt;Aishwarya Ilanko&lt;sup&gt;1&lt;/sup&gt;, Ian Edwin Cock&lt;sup&gt;1,2,&lt;/sup&gt;* &lt;/strong&gt;&lt;/p&gt;

&lt;p&gt;&lt;sup&gt;1&lt;/sup&gt;School of Natural Sciences, Nathan Campus, Griffith University, Brisbane, AUSTRALIA.&lt;/p&gt;

&lt;p&gt;&lt;sup&gt;2&lt;/sup&gt;Environmental Futures Research Institute, Nathan Campus, Griffith University, Brisbane, AUSTRALIA.&lt;/p&gt;
</style></auth-address></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Baxter Blonk</style></author><author><style face="normal" font="default" size="100%">Ian E.Cock</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Interactive Antimicrobial and Toxicity Profiles of Scaevola spinescens R.Br. Extracts with Conventional Antibiotics</style></title><secondary-title><style face="normal" font="default" size="100%">Pharmacognosy Journal</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Antibiotic resistance</style></keyword><keyword><style  face="normal" font="default" size="100%">Australian plant</style></keyword><keyword><style  face="normal" font="default" size="100%">Conventional antimicrobials</style></keyword><keyword><style  face="normal" font="default" size="100%">Interaction</style></keyword><keyword><style  face="normal" font="default" size="100%">Maroon bush</style></keyword><keyword><style  face="normal" font="default" size="100%">Medicinal plants</style></keyword><keyword><style  face="normal" font="default" size="100%">Synergy</style></keyword><keyword><style  face="normal" font="default" size="100%">Toxicity</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2018</style></year><pub-dates><date><style  face="normal" font="default" size="100%">August 2018</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">10</style></volume><pages><style face="normal" font="default" size="100%">1024-1035</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;strong&gt;Background:&lt;/strong&gt; &lt;em&gt;Scaevola spinescens&lt;/em&gt; was traditionally used by Australian Aborigines to treat a variety of conditions including bacterial and viral infections, inflammation and cancer. Conventional antibiotics are amongst the most commonly prescribed groups of drugs in allopathic medicine. Therefore, these therapies may be used concurrently by practitioners of complementary medicine and there is a need to evaluate their effects in combination.&lt;strong&gt; Methods:&lt;/strong&gt; Plant extracts were prepared using solvents of varying polarity and subjected to qualitative phytochemical screening analysis. Antimicrobial activity was assessed using disc diffusion and liquid dilution minimum inhibitory concentration (MIC) assays against a panel of pathogenic triggers of some autoimmune diseases. Interactions between the S. spinescens extracts and conventional antibiotics were studied and classified by determining the sum of the fractional inhibitory concentration (&amp;Sigma;FIC). Synergistic interactions were further examined across a range of ratios using isobolograms analysis. The toxicity of the individual samples and of the combinations was assessed using the Artemia lethality assay (ALA) and an MTS HDF cell viability assays. &lt;strong&gt;Results:&lt;/strong&gt; Methanolic, aqueous and ethyl acetate extracts showed moderate to good inhibitory activity against several bacterial pathogens known to trigger autoimmune inflammatory diseases in genetically susceptible individuals. However, combinations of the methanolic, aqueous, ethyl acetate and hexane extracts with conventional antibiotics proved significantly more effective in inhibiting the growth of Klebsiellia pneumoniae and &lt;em&gt;Streptococcus pyogenes&lt;/em&gt; (bacterial triggers of ankylosing spondylitis and rheumatic fever respectively). In total, 4 combinations proved to be synergistic, all of which contained tetracycline as the conventional antibiotic component. Furthermore, all conventional antibiotics and &lt;em&gt;S. spinescens&lt;/em&gt; leaf extracts were determined to be nontoxic when tested alone in the &lt;em&gt;Artemia&lt;/em&gt; nauplii and HDF bioassays. Combining the extracts and antibiotics did not significantly affect the toxicity of the combinations. &lt;strong&gt;Conclusion:&lt;/strong&gt; &lt;em&gt;S. spinescens&lt;/em&gt; extracts were effective inhibitors of the growth of several bacterial triggers of autoimmune inflammatory diseases when tested alone. Additionally, the methanolic, aqueous and ethyl acetate extracts potentiated the activity of tetracycline against bacterial otherwise resistant to its actions. Isolation of the synergising compounds in these extracts may be beneficial in drug design against several bacteria including the microbial triggers of ankylosing spondylitis and rheumatic fever.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">5</style></issue><work-type><style face="normal" font="default" size="100%">Original Article</style></work-type><section><style face="normal" font="default" size="100%">1024</style></section><auth-address><style face="normal" font="default" size="100%">&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;strong&gt;Baxter Blonk&lt;sup&gt;1,2&lt;/sup&gt;, Ian E.Cock&lt;sup&gt;1,2,*&lt;/sup&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;sup&gt;1&lt;/sup&gt;School of Environment and Science, Griffith University, 170 Kessels Rd, Nathan, Queensland, 4111, AUSTRALIA.&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;sup&gt;2&lt;/sup&gt;Environmental Futures Research Institute, Nathan Campus, Griffith University, 170 Kessels Rd,Nathan, Queensland, 4111, AUSTRALIA.&lt;/p&gt;</style></auth-address></record></records></xml>