Centre J.D. MacLean pour maladies tropicales - agrégateur /tropmed/fr/aggregator Centre J.D. MacLean pour maladies tropicales - flux agrégés fr Recent publications from TDC/Clinical Epidemiology authors: Increasing our knowledge about the epidemiology of <em>Helicobacter pylori</em> in Nunavik's Inuit population (Québec, Canada) using <em>Qanuilirpitaa?</em> 2017 cross-sectional survey https://pubmed.ncbi.nlm.nih.gov/39283038/?utm_source=Other&utm_medium=rss&utm_campaign=pubmed-2&utm_content=1zSVwQViw4htk0ptJE-rdb4g98Hn0Vy51ceCnixBnFkL6ILsbf&fc=20201106102241&ff=20240918023816&v=2.18.0.post9+e462414 Helicobacter pylori is a bacterium that may colonise and proliferate in human stomachs, leading invariably to chronic inflammation and, to a lesser extent, to peptic ulcers and cancer. The main objective of this study is to describe the epidemiology surrounding H. pylori in Nunavik's Inuit population using the 2004 and 2017 Health Surveys. Estimated prevalences were 70.9% for bacterial colonisation using a stool antigens test (SAT), 72.5% for anti-H. pylori antibodies, 12.7% for faecal occult... Mon, 16 Sep 2024 06:00:00 -0400 Recent publications from TDC/Clinical Epidemiology authors: Phytochemical screening, antimicrobial, antioxidant, anticancer activities on cervical cancer cell lines and aero-digestive extract of <em>Moringa oleifera</em> https://pubmed.ncbi.nlm.nih.gov/39257089/?utm_source=Other&utm_medium=rss&utm_campaign=pubmed-2&utm_content=1zSVwQViw4htk0ptJE-rdb4g98Hn0Vy51ceCnixBnFkL6ILsbf&fc=20201106102241&ff=20240912025732&v=2.18.0.post9+e462414 The phytochemical screening showed that the Moringa oleifera (MO) extract contained many compounds such as polyphenols, polyterpenes, sterols, reducing sugars, and hydrolysates tannins. The MICs of MO extract for microbial strains is 0.73 mg/ml for Escherichia coli, Pseudomonas aeruginosa, 7.5 mg/ml for Enterococcus faecalis, Staphylococcus aureus and 0.5 mg/ml for Candida albicans. The MO extract has an IC(50) of 3.403 mg/ml has an antioxidant activity by DPPH radical scavenging. The cytotoxic... Wed, 11 Sep 2024 06:00:00 -0400 Recent publications from TDC/Clinical Epidemiology authors: Helminth-derived metabolites induce tolerogenic functional, metabolic, and transcriptional signatures in dendritic cells that attenuate experimental colitis https://pubmed.ncbi.nlm.nih.gov/39211070/?utm_source=Other&utm_medium=rss&utm_campaign=pubmed-2&utm_content=1zSVwQViw4htk0ptJE-rdb4g98Hn0Vy51ceCnixBnFkL6ILsbf&fc=20201106102241&ff=20240901021118&v=2.18.0.post9+e462414 Inflammatory bowel diseases (IBD) are chronic inflammatory diseases in which abdominal pain, bloody diarrhea, weight loss, and fatigue collectively result in diminished quality of patient life. The disappearance of intestinal helminth infections in Western societies is associated with an increased prevalence of IBD and other immune-mediated inflammatory diseases. Evidence indicates that helminths induce tolerogenic dendritic cells (tolDCs), which promote intestinal tolerance and attenuate... Fri, 30 Aug 2024 06:00:00 -0400 Recent publications from TDC/Clinical Epidemiology authors: Bridging Hepatitis C Care Gaps: A Modeling Approach for Achieving the WHO's Targets in Ontario, Canada https://pubmed.ncbi.nlm.nih.gov/39205198/?utm_source=Other&utm_medium=rss&utm_campaign=pubmed-2&utm_content=1zSVwQViw4htk0ptJE-rdb4g98Hn0Vy51ceCnixBnFkL6ILsbf&fc=20201106102241&ff=20240901021118&v=2.18.0.post9+e462414 CONCLUSIONS: Doubling the antibody testing rates, along with increased RNA testing and treatment rates, showed promise in meeting the WHO's goals by 2035. Thu, 29 Aug 2024 06:00:00 -0400 Recent publications from TDC/Clinical Epidemiology authors: Genomic Epidemiology of Mycobacterium abscessus on the Island of Montréal Not Suggestive of Healthcare-associated Person-to-Person Transmission https://pubmed.ncbi.nlm.nih.gov/39189818/?utm_source=Other&utm_medium=rss&utm_campaign=pubmed-2&utm_content=1zSVwQViw4htk0ptJE-rdb4g98Hn0Vy51ceCnixBnFkL6ILsbf&fc=20201106102241&ff=20240828012851&v=2.18.0.post9+e462414 CONCLUSIONS: Genomics alone is insufficient to establish MABC transmission, particularly considering the genetic similarity and wide distribution of DCCs, although pan-genome analysis has the potential to add further insight. Our findings indicate that MABC infections in Montréal are unlikely attributable to healthcare-associated person-to-person transmission. Tue, 27 Aug 2024 06:00:00 -0400 Recent publications from TDC/Clinical Epidemiology authors: P-glycoproteins in anthelmintic safety, efficacy, and resistance https://pubmed.ncbi.nlm.nih.gov/39168719/?utm_source=Other&utm_medium=rss&utm_campaign=pubmed-2&utm_content=1zSVwQViw4htk0ptJE-rdb4g98Hn0Vy51ceCnixBnFkL6ILsbf&fc=20201106102241&ff=20240822014203&v=2.18.0.post9+e462414 P-glycoprotein (PGP) is a pivotal transmembrane transporter governing the cellular flux of diverse substances shielding mammals from toxics. It can thwart the effectiveness of medicines such as ivermectin (IVM) and other macrocyclic lactone (ML) anthelmintics, undermining therapeutic efforts. We analyze the role of PGPs in limiting the toxicity of these drugs in hosts, and their potential contribution to anthelmintic resistance in nematodes. Targeting nematode PGPs to increase drug sensitivity... Wed, 21 Aug 2024 06:00:00 -0400 Recent publications from TDC/Clinical Epidemiology authors: Streamlining malaria prevention recommendations for travellers: current and future approaches https://pubmed.ncbi.nlm.nih.gov/39167759/?utm_source=Other&utm_medium=rss&utm_campaign=pubmed-2&utm_content=1zSVwQViw4htk0ptJE-rdb4g98Hn0Vy51ceCnixBnFkL6ILsbf&fc=20201106102241&ff=20240822014203&v=2.18.0.post9+e462414 No abstract Wed, 21 Aug 2024 06:00:00 -0400 Recent publications from TDC/Clinical Epidemiology authors: Population immunity to varicella in Canada: A Canadian Immunization Research Network (CIRN) study https://pubmed.ncbi.nlm.nih.gov/39159217/?utm_source=Other&utm_medium=rss&utm_campaign=pubmed-2&utm_content=1zSVwQViw4htk0ptJE-rdb4g98Hn0Vy51ceCnixBnFkL6ILsbf&fc=20201106102241&ff=20240820002122&v=2.18.0.post9+e462414 INTRODUCTION: The incidence of varicella in Canada has decreased by almost 99% since vaccination was introduced. However, variation in the timing and eligibility of vaccination programs across the country has resulted in some cohorts being under-vaccinated and therefore potentially susceptible to infection. Mon, 19 Aug 2024 06:00:00 -0400 Recent publications from TDC/Clinical Epidemiology authors: Pilot-Scale Screening of Clinically Approved Drugs to Identify Uridine Insertion/Deletion RNA Editing Inhibitors in <em>Trypanosoma brucei</em> https://pubmed.ncbi.nlm.nih.gov/39118542/?utm_source=Other&utm_medium=rss&utm_campaign=pubmed-2&utm_content=1zSVwQViw4htk0ptJE-rdb4g98Hn0Vy51ceCnixBnFkL6ILsbf&fc=20201106102241&ff=20240810013919&v=2.18.0.post9+e462414 RNA editing pathway is a validated target in kinetoplastid parasites (Trypanosoma brucei, Trypanosoma cruzi, and Leishmania spp.) that cause severe diseases in humans and livestock. An essential large protein complex, the editosome, mediates uridine insertion and deletion in RNA editing through a stepwise process. This study details the discovery of editosome inhibitors by screening a library of widely used human drugs using our previously developed in vitro biochemical Ribozyme Insertion... Fri, 09 Aug 2024 06:00:00 -0400 Recent publications from TDC/Clinical Epidemiology authors: The population-level impact of introducing rapid diagnostic tests on syphilis transmission in Canadian arctic communities - a mathematical modeling study https://pubmed.ncbi.nlm.nih.gov/39100242/?utm_source=Other&utm_medium=rss&utm_campaign=pubmed-2&utm_content=1zSVwQViw4htk0ptJE-rdb4g98Hn0Vy51ceCnixBnFkL6ILsbf&fc=20201106102241&ff=20240806014433&v=2.18.0.post9+e462414 BACKGROUND: Canadian Arctic communities have experienced sustained syphilis transmission, with diagnoses rates 18-times higher than the national average. Remoteness from laboratory facilities leads to delays between syphilis screening and treatment, contributing to onward transmission. Rapid diagnostic tests can eliminate treatment delays via testing at the point-of-care. This study aims to describe syphilis diagnostic gaps and to estimate the impact of introducing rapid diagnostic tests at the... Mon, 05 Aug 2024 06:00:00 -0400