{"title":"The association of ESBL <i>Escherichia coli</i> with mortality in patients with <i>Escherichia coli</i> bacteremia at the emergency department.","authors":"Pariwat Phungoen, Jessada Sarunyaparit, Korakot Apiratwarakul, Lumyai Wonglakorn, Atibordee Meesing, Kittisak Sawanyawisuth","doi":"10.33393/dti.2022.2422","DOIUrl":"https://doi.org/10.33393/dti.2022.2422","url":null,"abstract":"ABSTRACT Background: Escherichia coli is a common bloodstream infection pathogen in the emergency department (ED). Patients with extended-spectrum beta-lactamase (ESBL) E. coli have a higher risk of morbidity. However, there is still debate surrounding ESBL E. coli-associated mortality in community, intensive care unit, and tertiary care settings. In addition, there have been few studies regarding mortality in ESBL E. coli in ED settings, and results have been contradictory. Methods: This was a retrospective cohort study conducted at the Department of Emergency Medicine, Faculty of Medicine, Khon Kaen University in Thailand aimed at evaluating the possible association between ESBL E. coli bacteremia and mortality in the ED. The inclusion criteria were age 18 years or over, clinical presentation suspicious of infection, and positive blood culture for E. coli. Predictors for mortality were analyzed by logistic regression analysis. Results: During the study period, 273 patients presented at the ED with hemoculture positive for E. coli. Of those, 27 (9.89%) died. Five factors remained in the final model, of which plasma glucose levels, serum lactate levels, and ESBL E. coli were significantly associated with 28-day mortality in the ED with adjusted odds ratios of 0.970, 1.258, and 12.885, respectively. Plasma glucose of less than 113 mg/dL yielded a sensitivity of 80.95% and specificity of 64.29%, while serum lactate over 2.4 mmol/L had a sensitivity of 81.48% and specificity of 45.50%. Conclusion: ESBL E. coli, plasma glucose, and serum lactate levels were associated with 28-day mortality in patients with E. coli bacteremia presenting at the ED.","PeriodicalId":11326,"journal":{"name":"Drug Target Insights","volume":" ","pages":"12-16"},"PeriodicalIF":2.7,"publicationDate":"2022-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/2b/73/dti-16-12.PMC9589459.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40652791","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}
{"title":"Anatomical and functional responses to single brolucizumab injection in neovascular age-related macular degeneration patients not responding to antiangiogenics: a case series","authors":"S. Zuccarini, Fabrizio Puce, Alessandro Crisà","doi":"10.33393/dti.2022.2343","DOIUrl":"https://doi.org/10.33393/dti.2022.2343","url":null,"abstract":"ABSTRACT Introduction: Neovascular age-related macular degeneration (nAMD) is treated with antivascular endothelial growth factor (anti-VEGF) drugs. However, resistance to anti-VEGF therapy is observed in some patients. Brolucizumab is a new-generation anti-VEGF drug for the treatment of nAMD, with proven efficacy in fluid resolution and long-lasting effects. Methods: We report here a case series of nAMD patients not responding to previous anti-VEGF therapy showing anatomical and functional response to a single intravitreal injection of brolucizumab. Results: Nine patients with nAMD, undergoing treatment with anti-VEGF therapy (aflibercept, bevacizumab, or ranibizumab) but with either fluid persistence or frequent fluid recurrences in retinal compartments, were switched to intravitreal brolucizumab and examined 4 weeks postinjection. No signs of active disease were observed in all but one patient, with complete retinal fluid resolution in seven patients. Central macular thickness and visual acuity significantly improved, and changes were sustained for up to 12 weeks in a subset of three patients. No adverse reactions were observed. Conclusions: This new anti-VEGF drug showed great efficacy since the first week from the injection with a significative reduction of subretinal fluid and rapid improvement of visual acuity. In conclusion, brolucizumab administered intravitreally appears to be an effective treatment in nAMD patients, leading to both early anatomical and functional improvements.","PeriodicalId":11326,"journal":{"name":"Drug Target Insights","volume":"16 1","pages":"6 - 11"},"PeriodicalIF":2.7,"publicationDate":"2022-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46116051","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}
Drug Target InsightsPub Date : 2022-03-07eCollection Date: 2022-01-01DOI: 10.33393/dti.2022.2355
Martino Carriero
{"title":"Erythrodermic psoriasis and palmoplantar hyperkeratosis successfully treated with secukinumab: a case report.","authors":"Martino Carriero","doi":"10.33393/dti.2022.2355","DOIUrl":"https://doi.org/10.33393/dti.2022.2355","url":null,"abstract":"ABSTRACT Introduction: Erythrodermic psoriasis (EP) is a rare and severe form of psoriasis that affects 1% to 2.25% of patients, increasing mortality risk. To date, very few therapies have been approved for the treatment of this condition. Recently, biological therapies that specifically target inflammatory cytokines have improved the management and treatment of EP. Secukinumab, a human monoclonal antibody that specifically targets interleukin-17A (IL-17A), has been shown to be beneficial in different psoriasis settings. Methods: We report the case of a 72-year-old man affected by persistent EP and severe palmoplantar hyperkeratosis whose condition was not resolved after two rounds of treatment with prednisone and therapy with cyclosporine. Results and conclusions: Treatment with secukinumab significantly improved the symptoms of palmoplantar hyperkeratosis as early as the first week, with a decrease of psoriasis area and severity index (PASI) score from 60 to 10, showing almost complete remission after 1 month. Consistent with the current literature, secukinumab treatment showed promising and encouraging clinical outcomes in the treatment of the patient’s EP. However, more studies are needed to clarify the IL-17-dependent mechanism in the pathophysiology of EP.","PeriodicalId":11326,"journal":{"name":"Drug Target Insights","volume":" ","pages":"1-5"},"PeriodicalIF":2.7,"publicationDate":"2022-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/de/1b/dti-16-1.PMC8902433.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40306297","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}
Syed Fahim Shah, Sohail Aziz Paracha, Waheed Ullah, Iqbal Muhammad, Somaid Iqbal, Aisha Gul, Mudassir Hussain, Hafiz Ullah, Sadir Zaman
{"title":"Success of 14-day triple and quadruple therapy for the control of <i>Helicobacter pylori</i> infections in Kohat district.","authors":"Syed Fahim Shah, Sohail Aziz Paracha, Waheed Ullah, Iqbal Muhammad, Somaid Iqbal, Aisha Gul, Mudassir Hussain, Hafiz Ullah, Sadir Zaman","doi":"10.33393/dti.2022.2481","DOIUrl":"https://doi.org/10.33393/dti.2022.2481","url":null,"abstract":"ABSTRACT Introduction: Helicobacter pylori is an important medical pathogen present in more than half of the world’s population. Various treatment regimen are in use for the eradication of H. pylori, but due to the emergence of antibiotic resistance, its management is a big issue for clinicians. Methods: In this study all suspected cases that had visited District Headquarters Hospital Kohat were considered for screening of H. pylori infections. Preliminary information about their age, gender, general health conditions, occupation, etc. was taken for consideration. After recording initial signs and symptoms, samples were considered for H. pylori detection using stool antigen test and endoscopy. Fourteen-day proton pump inhibitor base triple and quadruple therapy were administered to each patient. Results: In total (n = 178), there were high numbers of positivity in patients aged below 30 years (82; 46.06%), most of whom belonged to rural areas. Conclusion: This study concludes that there were high numbers of positive patients aged below 30 years, and according to this study MEL (Metronidazole + Esomeprazole + Levofloxacin) is the most effective treatment regimen for the eradication of H. pylori.","PeriodicalId":11326,"journal":{"name":"Drug Target Insights","volume":"16 ","pages":"49-53"},"PeriodicalIF":2.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/37/55/dti-16-49.PMC9768595.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10459522","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}
{"title":"AMR research: a perspective from personal experience.","authors":"Vijay Kothari","doi":"10.33393/dti.2022.2545","DOIUrl":"https://doi.org/10.33393/dti.2022.2545","url":null,"abstract":"<jats:p>...</jats:p>","PeriodicalId":11326,"journal":{"name":"Drug Target Insights","volume":"16 ","pages":"69-70"},"PeriodicalIF":2.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/c6/8e/dti-16-69.PMC9798424.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10493801","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}
Sim Yi Xing, Lee Qiao Wei, Aisha Abushelaibi, Kok Song Lai, Swee Hua Erin Lim, Sathiya Maran
{"title":"Current molecular approach for diagnosis of MRSA: a meta-narrative review.","authors":"Sim Yi Xing, Lee Qiao Wei, Aisha Abushelaibi, Kok Song Lai, Swee Hua Erin Lim, Sathiya Maran","doi":"10.33393/dti.2022.2522","DOIUrl":"https://doi.org/10.33393/dti.2022.2522","url":null,"abstract":"ABSTRACT Introduction: Detection and diagnosis of methicillin-resistant Staphylococcus aureus (MRSA) are important in ensuring a correct and effective treatment, further reducing its spread. A wide range of molecular approaches has been used for the diagnosis of antimicrobial resistance (AMR) in MRSA. This review aims to study and appraise widely used molecular diagnostic methods for detecting MRSA. Methods: This meta-narrative review was performed by searching PubMed using the following search terms: (molecular diagnosis) AND (antimicrobial resistance) AND (methicillin-resistant Staphylococcus aureus). Studies using molecular diagnostic techniques for the detection of MRSA were included, while non-English language, duplicates and non-article studies were excluded. After reviewing the libraries and a further manual search, 20 studies were included in this article. RAMESES publication standard for narrative reviews was used for this synthesis. Results: A total of 20 full papers were reviewed and appraised in this synthesis, consisting of PCR technique (n = 7), deoxyribonucleic acid (DNA) Microarray (n = 1), DNA sequencing (n = 2), Xpert MRSA/SA BC assay (n = 2), matrix-assisted laser desorption/ionization-time of flight (MALDI-TOF) (n = 2), MLST (n = 4), SCCmec typing (n = 1) and GENECUBE (n = 1). Discussion: Different diagnostic methods used to diagnose MRSA have been studied in this review. This study concludes that PCR has been extensively used due to its higher sensitivity and cost-effectiveness in the past five years","PeriodicalId":11326,"journal":{"name":"Drug Target Insights","volume":"16 ","pages":"88-96"},"PeriodicalIF":2.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/77/1b/dti-16-88.PMC9906022.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10688896","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}
{"title":"Unmet needs for management of drug-resistant infections: low- and middle-income countries' viewpoint.","authors":"Monica Sharma, Kamini Walia, Nitin Bansal","doi":"10.33393/dti.2022.2532","DOIUrl":"https://doi.org/10.33393/dti.2022.2532","url":null,"abstract":"ABSTRACT Drug-resistant infections are a serious threat globally which demands cost-effective solutions to meet the unmet needs in their diagnosis and treatment. Gram-negative pathogens, drug-resistant tuberculosis, and multidrug-resistant Salmonella typhi have been reported as cause of resistant infections in developing countries. Here, we discuss the priority pathogens and conditions for which feasible solutions adaptable to low-resource settings are required to address the antimicrobial resistance in pathogens. These solutions will be helpful in containing the spread of antimicrobial resistance and better patient outcomes.","PeriodicalId":11326,"journal":{"name":"Drug Target Insights","volume":"16 ","pages":"78-80"},"PeriodicalIF":2.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/76/d0/dti-16-78.PMC9823287.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10540472","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}
{"title":"Exploring the inhibitory mechanisms of indazole compounds against SAH/MTAN-mediated quorum sensing utilizing QSAR and docking.","authors":"Sisir Nandi, Mohit Kumar, Rashmi Kumari, Aaruni Saxena","doi":"10.33393/dti.2022.2512","DOIUrl":"https://doi.org/10.33393/dti.2022.2512","url":null,"abstract":"ABSTRACT The world is under the great threat of antimicrobial resistance (AMR) leading to premature deaths. Microorganisms can produce AMR via quorum sensing mechanisms utilizing S-adenosyl homocysteine/methylthioadenosine nucleosidase (SAH/MTAN) biosynthesis. But there is no specific drug developed to date to stop SAH/MTAN, which is a crucial target for the discovery of anti-quorum sensing compound. It has been shown that indazole compounds cause inhibition of SAH/MTAN-mediated quorum sensing, but the biochemical mechanisms have not yet been explored. Therefore, in this original research, an attempt has been made to explore essential structural features of these compounds by quantitative structure-activity relationship (QSAR) and molecular docking of indazole compounds having inhibition of SAH/MTAN-mediated quorum sensing. The validated QSAR predicted five essential descriptors and molecular docking helps to identify the active binding amino acid residues involved in ligand-receptor interactions that are responsible for producing the quorum sensing inhibitory mechanisms of indazole compounds against SAH/MTAN-mediated AMR.","PeriodicalId":11326,"journal":{"name":"Drug Target Insights","volume":"16 ","pages":"54-68"},"PeriodicalIF":2.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/b3/b6/dti-16-54.PMC9788832.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10459525","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}
Thuy B Duong, Minh C Duong, James I Campbell, Hoang V M Nguyen, Hien H Nguyen, Hanh T B Bui, Chau V V Nguyen, Anita Heywood
{"title":"MRSA carriage among healthcare workers in a Vietnamese intensive care unit: a prospective cohort study.","authors":"Thuy B Duong, Minh C Duong, James I Campbell, Hoang V M Nguyen, Hien H Nguyen, Hanh T B Bui, Chau V V Nguyen, Anita Heywood","doi":"10.33393/dti.2022.2504","DOIUrl":"https://doi.org/10.33393/dti.2022.2504","url":null,"abstract":"ABSTRACT Background: Little is known about the magnitude and patterns of methicillin-resistant Staphylococcus aureus (MRSA) carriage among intensive care unit (ICU) healthcare workers (HCWs), especially in lower-middle-income countries like Vietnam. Materials and methods: A prospective cohort study was conducted on HCWs working in the adult ICU of the Hospital for Tropical Diseases in Vietnam between October 28 and December 20, 2019. These HCWs included physicians, nurses, and nursing assistants who were responsible for all essential medical activities and basic patient care. A questionnaire was used to collect participants’ information, including age, sex, profession, ICU working time, and underlying diseases. Hand and nasal swabs were collected weekly for 8 consecutive weeks for MRSA screening. Staphylococcal isolates were checked for catalase and coagulase and, for methicillin resistance using cefoxitin disk diffusion, then rechecked on the matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Results: Among 55 HCWs, 16 (29.1%) carried MRSA in their noses or hands. MRSA intermittent hand carriage was documented in 2 (3.6%) HCWs. Among 53 HCWs undertaking nasal swabs, 13 (24.5%) were MRSA persistent and 3 (5.6%) were intermittent carriers. The MRSA carriage rate was highest among nursing assistants (50%, 4/8). More HCWs with underlying diseases were found to be MRSA carriers (31.8%, 7/22) compared with those without comorbidities (27.3%, 9/33). Conclusion: MRSA carriage among HCWs is not rare. The findings highlight an urgent need to review and update the local infection prevention and control measures to prevent MRSA transmission from HCWs to patients.","PeriodicalId":11326,"journal":{"name":"Drug Target Insights","volume":"16 ","pages":"71-77"},"PeriodicalIF":2.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/98/4b/dti-16-71.PMC9808530.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9076436","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}
{"title":"Antibiotic-resistant bacteria originating from the gut may modulate the mucosal immune response during sepsis and septic shock.","authors":"Swinder Jeet Singh Kalra, Hari Shankar, Nasim Mansoori, Dablu Lal Gupta","doi":"10.33393/dti.2022.2520","DOIUrl":"https://doi.org/10.33393/dti.2022.2520","url":null,"abstract":"Abstract The enrichment and diversity of gut microbiota play an important role in sepsis, but the role of gut microbiota composition and early-life colonization in sepsis and septic shock has not yet been characterized. The impact of gut microbiota diversity on host immunological disorders and future treatments of inflammatory diseases are not yet fully elucidated. Further, the association between the microbiota and immune development in sepsis remains unknown, and the underlying mechanisms are not well understood. The altered composition of gut microbiota during sepsis is profoundly associated with a loss of commensal bacteria and an overgrowth of potentially pathogenic bacteria, especially AMR bacteria. Disruptions of gut microbiota diversity are directly associated with susceptibility to sepsis and a higher risk of adverse outcomes. Several studies have confirmed that a mutual association between gut microbiota and the host is important for the metabolism of essential nutrients for the organism, for gut development, and for the maturation and development of a fully functional immune system. Therefore, understanding the gut microbiota diversity, composition, and function during various inflammatory conditions and sepsis may provide a comprehensive knowledge of the mechanisms behind the pathogenesis of gut-derived infection in diseases and the design of new treatment options (e.g., probiotics or fecal microbiota transplantation). Emerging evidence displays an important role of gut microbiota and their derived metabolites in modulating the host mucosal immune response and determining the susceptibility to, as well as outcomes of sepsis.","PeriodicalId":11326,"journal":{"name":"Drug Target Insights","volume":"16 ","pages":"81-87"},"PeriodicalIF":2.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/a6/80/dti-16-81.PMC9886009.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9252330","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}