journal
https://read.qxmd.com/read/36853826/superior-vena-cava-candida-krusei-septic-thrombophlebitis-in-an-ards-patient-on-ecmo-with-an-unusual-late-complication
#1
JOURNAL ARTICLE
Elizabeth Iskandar, Caterina Cavanna, Eva Maria Giada Mollaschi, Ruben Mattia Trani, Francesco Mojoli, Alessandro Amatu
Candida-related bloodstream infections (BSIs) represent a severe condition associated with health care in the critical patient, with an increasing incidence of Candida non-albicans species. These infections could lead to several and unusual complications in high-risk patients due to various factors, including a prolonged hospital stay and invasive medical interventions. Here we report a case of a Candida krusei septic thrombophlebitis in an ARDS patient admitted to the ICU, complicated by a late onset prostatic abscess...
February 2023: New Microbiologica
https://read.qxmd.com/read/36853825/strongyloides-hyperinfection-syndrome-and-cytomegalovirus-infection-in-a-patient-with-type-ii-diabetes-mellitus
#2
JOURNAL ARTICLE
Zhaoliang Wang, Jiaquan Guo, Jinlin Liu
Strongyloidiasis is a gastrointestinal parasitic infection caused by percutaneous infection with Strongyloides stercoralis, which is mainly distributed in the tropics and subtropics worldwide. Digestive symptoms like diarrhea and abdominal pain are the main manifestation, but serious infections such as bacterial pneumonia, purulent meningitis and sepsis also occur in immunocompromised individuals. Herein, we present a rare case of a type II diabetes mellitus (T2DM) patient presented with gastrointestinal hemorrhage and sepsis caused by concomitant Strongyloides stercoralis and cytomegalovirus (CMV) infection...
February 2023: New Microbiologica
https://read.qxmd.com/read/36853824/a-covid-19-mystery-multisystem-inflammatory-syndrome-in-adults-mis-a-associated-with-splenic-rupture
#3
JOURNAL ARTICLE
Isil Isel, Istemi Serin, Beyza Kal Kolik, Hasan Goze, Tahir Alper Cinli, Gulben Erdem Huq, Mahmut Emin Cicek, Sermin Altindal, Osman Yokus
Severe inflammation and one or more extrapulmonary organ dysfunctions have been observed in those who had recently developed COVID-19, except for a macrophage activation syndrome-like picture. A 50-year-old female patient was admitted to the emergency department with fever and a history of COVID-19 infection. More than one area of hemophagocytosis was found in the bone marrow aspiration. The HLH-2004 protocol was started with neurological involvement and she underwent splenectomy due to massive intra-abdominal bleeding secondary to splenic laceration on the 3rd day...
February 2023: New Microbiologica
https://read.qxmd.com/read/36853823/post-neurosurgical-nocardia-meningoventriculitis-a-case-report-and-review-of-the-literature
#4
REVIEW
Giacomo Ponta, Lucia Bradanini, Valentina Morena, Carola Mauri, Marco Ripa, Caterina Uberti Foppa, Antonella Castagna, Francesco Luzzaro, Stefania Piconi
The genus Nocardia consists of a group of gram-positive environmental bacteria. They typically cause lung and brain infections in immunocompromised patients, even though one out of three infected patients have a normally functioning immune system. Being a ubiquitous microorganism, in some cases Nocardia has been associated with nosocomial acquired infections and surgical procedures. A review of the literature in this field follows the case report. A 47-year-old woman underwent an endoscopic third ventriculostomy and a left retro-sigmoid craniotomy for a schwannoma removal...
February 2023: New Microbiologica
https://read.qxmd.com/read/36853822/nocardia-infections-in-italy-from-a-local-to-a-national-view
#5
JOURNAL ARTICLE
Giampaolo Cordioli, Giuseppe Di Pietra, Shirin Asa'ad, Silvia Meneghello, Claudia Del Vecchio, Ettore De Canale, Ignazio Castagliuolo
In this paper, we have described cases of nocardiosis that occurred in our hospital and examined the literature on other nocardiosis cases recorded in Italy. We have collected the clinical details of our recent cases and described them in full. Regarding the older cases in our hospital and the Italian cases present in the literature, we noted the clinical data, the Nocardia species involved, and the antimicrobial susceptibility reported. The survey was carried out on PubMed. The first of our cases is an elderly woman with compromised health who had a lung and bloodstream infection...
February 2023: New Microbiologica
https://read.qxmd.com/read/36853821/should-we-expect-weight-changes-in-people-with-hiv-and-a-reported-weight-gain-only-by-switching-antiretroviral-therapy
#6
JOURNAL ARTICLE
Camilla Muccini, Daniele Ceccarelli, Riccardo Lolatto, Vincenzo Spagnuolo, Chiara Oltolini, Anna Danise, Ilaria Mainardi, Roberta Monardo, Antonella Castagna
Weight gain following the initiation or the switch of antiretroviral therapy (ART) is well documented and mainly associated with some of the most recent drugs, such as integrase strand transfer inhibitors and tenofovir alafenamide. However, limited data have been published on weight trends in ART-experienced people living with HIV (PLWH) with a long exposure to HIV infection and antiretroviral drugs. In our study, we assessed changes in weight after switching ART among PLWH who reported weight gain under a previous regimen...
February 2023: New Microbiologica
https://read.qxmd.com/read/36853820/virucidal-efficacy-of-a-novel-silver-based-disinfectant-against-sars-cov-2-omicron-ba-5
#7
JOURNAL ARTICLE
Alberto Zani, Serena Messali, Francesca Caccuri
In this study we evaluated the antiviral activity of the Silver Barrier® disinfectant against SARSCoV-2. Silver Barrier® showed time- and concentration-dependent antiviral activity against SARSCoV-2. After 5 min contact time, Silver Barrier® at 0.002% showed a strong inhibitory effect (p<0.001), with a 2-fold reduction of viral genome copy numbers, and a robust suppression (94%) of SARS-CoV-2 infectivity. Considering the effects obtained in solution and within a very short time, Silver Barrier® stands as an excellent new candidate for the disinfection of work environments, especially at the healthcare level, where there are people at high risk of serious illnesses...
February 2023: New Microbiologica
https://read.qxmd.com/read/36853819/characterization-of-gardnerella-vaginalis-isolates-correlations-among-clades-biofilm-formation-and-cytokine-stimulation
#8
JOURNAL ARTICLE
Sara Morselli, Melissa Salvo, Claudio Foschi, Tiziana Lazzarotto, Simone Ambretti, Antonella Marangoni
We characterized 61 Gardnerella vaginalis (GV) strains isolated from women with bacterial vaginosis. GV clade 1 was the most commonly found (52.5%), followed by clade 4 (36.1%). All the strains were susceptible to ampicillin and clindamycin, whereas 96.7% and 6.6% of strains showed metronidazole and tetracycline resistance, respectively. Isolates within clade 4 tended to possess the highest ability to form biofilm. Strains resistant to metronidazole and tetracycline were all intermediate or high biofilm producers...
February 2023: New Microbiologica
https://read.qxmd.com/read/36853818/comparative-transcriptome-analysis-of-wild-type-and-a-pectate-lyase-mutant-strain-of-bacillus-subtilis
#9
JOURNAL ARTICLE
Kongyang Wu, Jinqiu Wu, Xue Li, Tongxiang Yang, Xuedong Chen, Xueyi Yang
Transcriptome analysis for the original Bacillus subtilis K1 strain and UV mutagenic strain UW07 with high yield of pectate lyase was implemented with RNA-seq. The function of genes was annotated and metabolic pathways were classified to look for different expression genes and classify these genes into related metabolic pathways to reveal the high-yield mechanism of pectate lyase in UW07. The results showed that 397 genes were up-regulated and 617 genes were down-regulated compared with the original strain...
February 2023: New Microbiologica
https://read.qxmd.com/read/36853817/progesterone-and-estradiol-alter-the-growth-virulence-and-antibiotic-susceptibilities-of-staphylococcus-aureus
#10
JOURNAL ARTICLE
Fatma Kalaycı-Yüksek, Defne Gümüş, Varol Güler, Aysun Uyanık-Öcal, Mine Anğ-Küçüker
In the present study, the effects of progesterone (PRO) and estradiol (EST) on the growth, adhesion, invasion, biofilm and antibiotic susceptibilities of methicillin-resistant Staphylococcus aureus (MRSA) and methicillin-susceptible S. aureus (MSSA) were examined. We also investigated effects of S. aureus infections on the viability of human breast adenocarcinoma (MCF-7) cells in the presence/ absence of hormones. The effects of hormones on the growth, adhesion and invasion of S. aureus were investigated in MCF-7 cells...
February 2023: New Microbiologica
https://read.qxmd.com/read/36853816/antimicrobial-resistance-rates-of-streptococcus-pyogenes-in-a-greek-tertiary-care-hospital-6-year-data-and-literature-review
#11
JOURNAL ARTICLE
Georgios Meletis, Alexandros Lazaros Soulopoulos Ketikidis, Nikoletta Floropoulou, Areti Tychala, Georgia Kagkalou, Olga Vasilaki, Paraskevi Mantzana, Lemonia Skoura, Efthymia Protonotariou
Streptococcus pyogenes is responsible for various clinical manifestations in patients of all ages worldwide. Worryingly, an increase in antibiotic resistance rates of S. pyogenes has been observed in many countries. In the present study, 6-year data are presented regarding the antibiotic resistance rates of S. pyogenes in our hospital. During this period, a total of 52 S. pyogenes isolates were recovered from 52 patients and antimicrobial susceptibility testing was performed for 49 isolates. All were susceptible to penicillin, ampicillin, cefotaxime, ceftriaxone, linezolid, moxifloxacin, rifampicin, vancomycin, teicoplanin, and tigecycline...
February 2023: New Microbiologica
https://read.qxmd.com/read/36853815/pathogens-distribution-and-antimicrobial-resistance-pattern-of-blood-stream-infections-in-southern-italian-hospital-2016-2021-surveillance
#12
JOURNAL ARTICLE
Maria Teresa Della Rocca, Vittorio Panetta, Adriana Durante, Lucio Bucci, Alfredo Matano, Angela Annecchiarico, Rita Greco
Bloodstream infections (BSIs) monitoring and antibiotic susceptibility assumes a priority relevance to guide antibiotic treatment strategies and prevention programs. The study aims to identify the most common causative agents of BSIs, seasonal distribution and variation of antimicrobial susceptibility rates during a 6-year period in a in a Level II EAD Southern Italian Hospital. The study was conducted from 2016 to 2021 at Hospital of National Relevance (AORN) Sant'Anna and San Sebastiano, Caserta, Campania Region in Italy...
February 2023: New Microbiologica
https://read.qxmd.com/read/36853814/severe-escherichia-coli-infections-in-critical-adult-patients-two-case-reports-and-genomic-analysis
#13
JOURNAL ARTICLE
Stefano Amadesi, Giulio Virgili, Elisa Marchionni, Alessandra Cascavilla, Tiziana Lazzarotto, Pierluigi Viale, Paolo Gaibani
Pathogenic Escherichia coli strains can infect a variety of body sites due to the expression of virulence factors necessary to overcome the host defenses. Here, we present two cases of E. coli infection in adults and discuss the associated genomic features. Whole-genome sequencing was performed using both Illumina iSeq 100 and Oxford Nanopore MinION systems. Assembly was carried out with Unicycler using a hybrid approach. The genomes were annotated with RASTtk and scanned for genes involved in antimicrobial resistance, virulence and stress response with AMRFinderPlus...
February 2023: New Microbiologica
https://read.qxmd.com/read/36853813/sars-cov-2-infection-clinical-picture-and-outcomes-in-adults-living-with-hiv-a-cohort-analysis
#14
JOURNAL ARTICLE
Franco Maggiolo, Laura Comi, Marco Arosio, Daniela Valenti, Davide Guarneri, Marco Rizzi, Annapaola Callegaro
Existing evidence about HIV and SARS-CoV-2 co-infection has, so far, yield conflicting results. Methods: This is a cohort, single center, clinical study aimed at identifying possible characteristics of PLWH that could correlate with the risk of acquiring SARS-CoV-2 and would influence the outcome. 155 cases of SARS-CoV-2 infection were compared with 307 PLWH who tested negative. No variable was associated with an increased risk of infection. SARS-CoV-2 PLWH were completely asymptomatic in 20.6% of cases. Factors associated with severe COVID-19 were age (P=0...
February 2023: New Microbiologica
https://read.qxmd.com/read/36853812/cefditoren-a-clinical-overview
#15
REVIEW
Simone Giuliano, Angela Acquasanta, Luca Martini, Francesco Sbrana, Sarah Flammini, Carlo Tascini
Cefditoren is an oral third-generation cephalosporin with a large spectrum activity against Gram-negative and Gram-positive bacteria which are reported to be responsible for respiratory tract and skin and skin structure infections. In this work we reviewed the pharmacodynamics, pharmacokinetics, and the main clinical indications of cefditoren. Similarly to other beta-lactams, cefditoren is a time-dependent antibiotic, and its "best" PK/PD target is probably 40% dosing interval time > 4- 5-fold MIC and 40-70% dosing interval time > 4- 5-fold MIC for bacteriostatic and bactericidal effect, respectively...
February 2023: New Microbiologica
https://read.qxmd.com/read/36853811/genomic-epidemiology-and-phylogenetics-applied-to-the-study-of-sars-cov-2-pandemic
#16
JOURNAL ARTICLE
Alessia Lai, Annalisa Bergna, Carla Della Ventura, Gianguglielmo Zehender
The study of characteristics, prevalence and patterns of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections is significant to monitor and define the status of the pandemic, helping to design and evaluate control strategies. In this setting, the continuous emergence of new variants and their dynamic of replacement underline the importance of implementing genomic epidemiology and phylogenetic methods for the molecular monitoring and surveillance of this new virus. The current profile of the pandemic can change rapidly when new variants emerge and spread, impacting epidemiology and public health in terms of prevention and treatment and making it necessary to develop new molecules and formulate vaccines...
February 2023: New Microbiologica
https://read.qxmd.com/read/36538301/clinical-performance-of-fujirebio-lumipulse-g-sarscov-2-ag-chemiluminescent-immunoassay
#17
JOURNAL ARTICLE
Gian Luca Salvagno, Brandon M Henry, Simone De Nitto, Laura Pighi, Giuseppe Lippi
We evaluated the performance of Fujirebio Lumipulse G SARS-CoV-2 Ag chemiluminescent immunoassay. A nasopharyngeal swab was collected from 160 subjects and assayed simultaneously with Fujirebio Lumipulse G SARS-CoV-2 Ag and Altona Diagnostics RealStar SARS-CoV-2 RT-PCR assays. Using 0.60 pg/mL diagnostic threshold, Fujirebio Lumipulse G SARS-CoV-2 Ag displayed 0.88 area under the curve, 0.88 sensitivity and 0.75 specificity compared to molecular testing. The area under the curve increased to 1.00 after excluding samples with low viral load (i...
December 2022: New Microbiologica
https://read.qxmd.com/read/36538300/evaluation-and-comparison-of-eighteen-sars-cov-2-antibody-assays-from-seven-different-companies-to-assess-its-diagnostic-role-in-sars-cov-2-infections
#18
JOURNAL ARTICLE
Neval Yurttutan Uyar, Arda Ahmet, Muhittin Serdar, Sesin Kocagöz, Meltem Kilercik, Mustafa Serteser
The diagnostic performance of reverse transcriptase polymerase chain reaction (RT-PCR) decreases during the late acute stage of the corona virus disease (COVID-19) infection; hence, serological assays can be used for disease diagnosis in patients non-protected through vaccinations at this stage. The objective of this study was to assess the diagnostic accuracy of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibody tests in current/past infections, determine proper testing time, and check the accuracy of cutoff values...
December 2022: New Microbiologica
https://read.qxmd.com/read/36538299/antimicrobial-resistance-changing-trends-of-klebsiella-pneumoniae-isolated-over-the-last-5-years
#19
JOURNAL ARTICLE
Maria Teresa Della Rocca, Francesco Foglia, Valeria Crudele, Giuseppe Greco, Anna De Filippis, Gianluigi Franci, Emiliana Finamore, Massimiliano Galdiero
The aim of this study was to describe the prevalence and epidemiology distribution of K. pneumoniae isolated at University Hospital of Campania "Luigi Vanvitelli," including the susceptibility evolution profile. Data on resistant phenotype strains, such as extended-spectrum-β-lactamase (ESBL) producers and carbapenem-resistant K. pneumoniae (CRE) isolates, were also reported. K. pneumoniae strains were collected at the Complex Operative Unit (UOC) of Virology and Microbiology from different colonization and infection sites from January 2016 to December 2020...
December 2022: New Microbiologica
https://read.qxmd.com/read/36538298/cellular-vimentin-promotes-the-nuclear-transport-of-the-hbov1-structural-protein-vp1u
#20
JOURNAL ARTICLE
Meiwen Zhang, Xiaoting Feng, Peng Wei, Yongyi Li, Jiping Zhu, Yi Li
Human bocavirus 1 (HBoV1) is an important pathogen causing lower respiratory tract infection. The VP1 unique region (VP1u), consisting of 129 amino acids at the N-terminus of the HBoV1 structural protein VP1, is an important component of virus infection. Bioinformatics analysis predicted that HBoV1 VP1u exhibits two bipartite nuclear localization signals (NLS) and contains four basic regions (BRs). The two potential bipartite NLSs consist of BR2 and 3 and BR3 and 4, respectively. In this study, we inserted the truncated vp1u sequences into a double EGFP fusion expression vector and confirmed the vimentin (VIM)-HBoV1 VP1u interaction by mass spectrometry and immunoprecipitation...
December 2022: New Microbiologica
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