1,011,016 results match your criteria: "Department of Microbiology; Perelman School of Medicine; University of Pennsylvania; Philadelphia[Affiliation]"

Clinical evaluation of a multiplex droplet digital PCR for diagnosing suspected bloodstream infections: a prospective study.

Front Cell Infect Microbiol

January 2025

Department of Clinical Laboratory, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.

Background: Though droplet digital PCR (ddPCR) has emerged as a promising tool for early pathogen detection in bloodstream infections (BSIs), more studies are needed to support its clinical application widely due to different ddPCR platforms with discrepant diagnostic performance. Additionally, there is still a lack of clinical data to reveal the association between pathogen loads detected by ddPCR and corresponding BSIs.

Methods: In this prospective study, 173 patients with suspected BSIs were enrolled.

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Introduction: For years, the placenta was believed to be sterile, but recent studies reveal it hosts a unique microbiome. Despite these findings, significant questions remain about the origins of the placental microbiome and its effects on pregnancy and fetal health. Some studies suggest it may originate from the vaginal tract, while others indicate that oral bacteria can enter the maternal bloodstream and seed the placenta.

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Exposure-response (ER) analyses are routinely performed as part of model-informed drug development to evaluate the risk-to-benefit ratio for dose selection, justification, and confirmation. For logistic regression analyses with binary endpoints, several exposure metrics are investigated, based on pharmacological plausibility, including time-averaged concentration to event (C). C is informative because it accounts for dose interruptions, modifications, and reductions and is therefore often compared against ER relationships identified using steady-state exposures.

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First insight into eosinophils as a biomarker for the early distinction of COVID-19 from influenza A in outpatients.

Exp Ther Med

March 2025

Department of Infectious Diseases, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, P.R. China.

Coronavirus disease 2019 (COVID-19) and influenza A outbreaks have spread rapidly in China. It is difficult to accurately differentiate these two different respiratory tract infections on the basis of their similar early-stage symptoms and lymphocytopenia. In the present study, the age, sex and white blood cell, neutrophil, lymphocyte, monocyte and eosinophil counts, as well as the neutrophil-to-lymphocyte ratio (NLR) of 201 outpatients with confirmed COVID-19 and 246 outpatients with influenza A were investigated and compared.

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Mpox Virus as a Global Public Health Emergency: A Scoping Review.

Can J Infect Dis Med Microbiol

January 2025

Department of Biomedical and Clinical Sciences, Division of Molecular Medicine and Virology, Linköping University, Linköping 58183, Sweden.

The monkeypox (Mpox) virus has emerged as a global public health emergency of international concern recently. The virus that was endemic in West and Central Africa has now been reported with chains of global transmission to several countries. A scoping review was carried out from the relevant literature available from PubMed, Scopus and Web of Science.

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is a severe danger to worldwide maize () cultivation, due to its extreme toxicity of aflatoxins produced by the fungi, and its ability to cause economic losses while also posing a health concern to humans and animals. Among the measures that may be considered for control, applying coatings based on natural ingredients appears to be the most promising. The current work examines the antagonistic ability of bioactive metabolites added to chitosan nanoparticles against on maize kernels.

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, responsible for flea-borne spotted fever, is a rising zoonotic pathogen posing an increasing global threat due to its expanding geographical distribution. The rise in antibiotic-resistant strains of this pathogen underscores the urgent need for new therapeutic interventions. This study employed a comprehensive subtractive proteomics analysis of the proteome, aiming to identify essential, non-host homologous, and pathogen-specific proteins, which were subsequently evaluated as potential new drug targets.

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Classification performance and reproducibility of GPT-4 omni for information extraction from veterinary electronic health records.

Front Vet Sci

January 2025

Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States.

Large language models (LLMs) can extract information from veterinary electronic health records (EHRs), but performance differences between models, the effect of hyperparameter settings, and the influence of text ambiguity have not been previously evaluated. This study addresses these gaps by comparing the performance of GPT-4 omni (GPT-4o) and GPT-3.5 Turbo under different conditions and by investigating the relationship between human interobserver agreement and LLM errors.

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Impact of trypanosomiasis on male camel infertility.

Front Vet Sci

January 2025

Zoology and Entomology Department, Faculty of Science, New Valley University, El-Kharga, Egypt.

Introduction: Blood parasitism is a significant clinical disease that silently undermines the livestock industry, particularly affecting camels. This study aimed to assess the prevalence of in Arabian camels () and its impact on infertility by examining serum protein fractions, lipids, reproductive indices, and the expression of heat shock protein (HSP70) during breeding season.

Methods: A total of 107 male post-pubertal camels, aged between 5 and 10 years, were collected randomly from slaughtering house in Assiut Governorate, Egypt.

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Hepcidin: A missing link at the interface of malaria and hypertension.

IJID Reg

December 2024

The Kuvin Center for the Study of Infectious and Tropical Diseases, & Department of Microbiology and Molecular Genetics, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel.

Malaria and hypertension are seemingly unrelated communicable and non-communicable diseases, both highly pervasive in the global south. There is a debate about the potential connection between these two disorders beyond any obvious factors. The emerging evidence suggests an emerging genetic selection pressure for hypertension in malaria-endemic regions.

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Objectives: In Gabon, data on hepatitis B virus (HBV) infection are limited to hepatitis B surface antigen (HBsAg) detection among specific populations and rural regions. This is the first study aimed at determining the seroprevalence of HBV markers among the Gabonese population.

Methods: A retrospective study was conducted from January 2002 through December 2022.

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BackgroundCrimean-Congo haemorrhagic fever (CCHF) is a severe illness characterised by fever, bleeding and high case-fatality rates. The disease is caused by CCHF virus (CCHFV), transmitted by ticks and infectious body fluids and tissues.AimAfter CCHF was diagnosed in three persons in 2023, we aimed to investigate the presence of antibodies against CCHFV in healthcare workers (HCW), sheep and goats, and of CCHFV in ticks, in an area in North Macedonia and characterise virus strains.

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BackgroundTick-borne encephalitis (TBE) can be a severe neurological disease. Identifying ecological factors that may facilitate tick-borne encephalitis virus (TBEV) circulation in the Netherlands could improve awareness and detection.AimWe aimed to identify ecological factors affecting TBEV circulation in the Netherlands and to determine if there is sustained circulation and spread of the virus.

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Multifaceted Action of 1,8-Cineole in Antibacterial and Anti-inflammatory Treatment of Respiratory Tract Diseases.

Otolaryngol Pol

January 2025

"P.U.M.A." Platform for Unique Models Application, Department of Pharmaceutical Microbiology and Parasitology, Wroclaw Medical University, Wroclaw, Poland.

1,8-cineole, renowned for its versatile therapeutic properties, has long been utilized in the treatment of respiratory system disorders. Its potential for oral administration offers a new dimension as an effective systemic therapy with anti-inflammatory and antibacterial effects. Maintaining stable levels of the compound in the body enhances treatment efficacy and reduces the risk of recurrence.

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Objective: This study aims to investigate may moesin deficiency resulted in neurodevelopmental abnormalities caused by negative impact on synaptic signaling ultimately leading to synaptic structure and plasticity.

Methods: Behavioral assessments measured neurodevelopment (surface righting, negative geotaxis, cliff avoidance), anxiety (open field test, elevated plus maze test), and memory (passive avoidance test, Y-maze test) in moesin-knockout mice (KO) compared to wild-type mice (WT). Whole exome sequencing (WES) of brain (KO vs.

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Psychiatric Symptoms Among Adolescents and Young Adults With or Without the Huntingtin Gene Expansion.

J Neuropsychiatry Clin Neurosci

January 2025

Departments of Neurology (Watson, Pfalzer, Snow, Diehl, McDonell, Claassen) and Pathology, Microbiology, and Immunology (Vnencak-Jones), Vanderbilt University Medical Center, Nashville; Department of Psychology and Human Development (Ciriegio, Snow, Compas), Vanderbilt University, Nashville; Department of Psychiatry, University of Iowa, Iowa City (Long).

Objective: Using a multi-informant approach, the authors assessed the psychiatric symptoms of adolescents and young adults with or without the huntingtin gene expansion and examined the association of psychiatric symptoms with cumulative disease exposure, a measure taking into account age and genetic data.

Methods: The sample included 110 participants with (N=71) or without (N=39) the gene expansion, along with 85 family members who provided collateral reports. Saliva samples were used for genetic testing.

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Introduction: Acute Myeloid Leukemia is a heterogeneous hematological malignancy characterized by the uncontrolled proliferation of abnormal myeloid cells. Besides several other genetic abnormalities developed in AML, FLT3 mutations are significant due to their worse prognostic impacts and therapeutic resistance. As a result, these mutations enable AML cells to develop mechanisms for evading immune surveillance.

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Clonal hematopoiesis of indeterminate potential (CHIP) is a condition where blood or bone marrow cells carry mutations associated with hematological malignancies. Individuals with CHIP have an increased risk of developing hematological malignancies, atherosclerotic cardiovascular disease, and all-cause mortality. Bone marrow transplantation (BMT) of cells carrying CHIP mutations into irradiated mice are useful procedures to investigate the dynamics of clonal expansion and potential therapeutic strategies, but myeloablative conditioning can induce confounding effects.

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Biofilm characterisation of Mycoplasma bovis co-cultured with Trueperella pyogenes.

Vet Res

January 2025

Animal Health Unit, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan.

Mycoplasma pneumonia, caused by Mycoplasma bovis (Mycoplasmopsis bovis; M. bovis), is linked with severe inflammatory reactions in the lungs and can be challenging to treat with antibiotics. Biofilms play a significant role in bacterial persistence and contribute to the development of chronic lesions.

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The global HIV epidemic remains a major public health challenge, with DTG playing a key role in ART regimens due to its efficacy and tolerability. This study evaluated virological outcomes and resistance mutations in patients on DTG in Mozambique through a retrospective cohort study in seven DREAM centers. Data from 29,601 patients (98.

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Background: The global dissemination of carbapenem-resistant hypervirulent Klebsiella pneumoniae (CR-hvKp) poses a critical threat to public health. However, comprehensive data on the prevalence and resistance rates of CR-hvKp are limited. This systematic review and meta-analysis aim to estimate the pooled prevalence of carbapenem resistance among hvKp strains and assess the distribution of carbapenemase genes.

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Background: The Immunoglobulin Heavy Chain (IGH) genomic region is responsible for the production of circulating antibodies and warrants careful investigation for its association with COVID-19 characteristics. Multiple allelic variants within and across different IGH gene segments form a limited set of haplotypes. Previous studies have shown associations between some of these haplotypes and clinical outcomes of COVID-19.

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Background: HER2-targeted therapies have revolutionized the treatment of HER2-positive breast cancer patients, leading to significant improvements in tumor response rates and survival. However, resistance and incomplete response remain considerable challenges. Proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibition is a novel therapeutic strategy for the management of dyslipidemia by enhancing the clearance of low-density lipoprotein cholesterol receptors, however recent evidence also shows links between PCSK9 and cancer cells.

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