Composite chronic lymphocytic leukemia and mantle cell lymphoma involving the bone marrow: a case report and literature review.

Chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) is a clinically indolent lymphoproliferative disorder characterized by accumulation of mature B-cell lymphocytes. Given the common CD5 co-expression, mantle cell lymphoma (MCL) is one of the most important entities in the differential diagnosis. MCL and CLL/SLL might exhibit overlapping morphologic and immunohistochemical features, making diagnosis particularly difficult in cases of composite lymphomas.

Impact of iron limitation on in vitro and in vivo activity of ceftazidime against A. baumannii.

Acinetobacter baumannii (AB) is known to have high rates of multidrug resistance (MDR); new treatment options are critically needed to prevent further spread and mortality. Deferiprone, a metal chelator, has been shown to induce transient growth inhibition in previous studies, and this could be potentially exploited for therapeutic purposes. This study was to examine the impact of iron limitation on the in vitro and in vivo activity of ceftazidime against four clinical MDR AB isolates.

Clinical and Genomic Characterization of Recalcitrant Enterococcal Bacteremia: A Multicenter Prospective Cohort Study (VENOUS).

Background: Patients with recalcitrant enterococcal bloodstream infections are at greater risk of adverse outcomes. We identified patients in the 2016-2022 Vancomycin-Resistant Enterococcal Bacteremia Outcomes Study (VENOUS) cohort experiencing recalcitrant bloodstream infections for further clinical and genomic characterization.

Methods: Bacteremia episodes were considered "persistent" if there was a lack of clearance on day four while receiving ≥ 48 hours of active therapy and recurrent if there was clearance during hospitalization with a subsequent positive culture (collectively, "recalcitrant" bacteremia).

Acquired aberrant partial CD3 expression in recurrent Epstein-Barr virus-negative solitary plasmacytoma of tonsil.

The aberrant expression of specific T-cell maker CD3 in B-cell neoplasms can be a potential diagnostic pitfall leading to a misclassification of cell lineage. Here, we report a case of recurrent solitary plasmacytoma with new aberrant expression of CD3. The neoplastic plasma cells of the recurrent tumor were kappa restricted, positive for CD138, MUM1, negative for CD20, cyclin D1, and Epstein-Barr virus.

Low-glycemic index cookies supplemented with substrate: Nutritional values, physicochemical properties, antioxidant activity, bioactive constituents, and bioaccessibility.

substrate (CMS) is a novel ingredient rich in dietary fibers and bioactive compounds; however, its application in food products remains largely unexplored. This study introduces CMS as a partial wheat flour substitute for developing low-glycemic cookies enriched with dietary fiber and bioactive compounds. Results indicate that CMS supplementation increased fiber and phenolic content by 1.

Molecular determinants of sialylated IgG anti-inflammatory activity.

IgG antibodies are the basis for many successful therapeutics. A single, N-linked glycan is present on the Fc on all IgGs, and the composition of that glycan exerts marked influence over effector functions of the IgG. We and others have shown terminal sialylation of the Fc glycan confers anti-inflammatory activity to the IgG1 subclass and is thought to be responsible for the anti-inflammatory activity of high-dose intravenous immunoglobulin.

Colorectal Neoplasia in Vietnamese Patients Under 50 Years of Age: A Cross-Sectional Study.

Background/aims: Few studies have examined the colonoscopic findings of Asian individuals under 50 years of age, with some focusing on specific age cohorts. The present study examined the prevalence, endoscopic characteristics, and histology findings of colorectal neoplasia in Vietnamese patients under 50 years of age and compared these results across age groups.

Methods: A retrospective cross-sectional study was conducted at the University Medical Center, Ho Chi Minh City, Vietnam.

Clinical and Genomic Characterization of Recalcitrant Enterococcal Bacteremia: A Multicenter Prospective Cohort Study (VENOUS).

Background: Patients with recalcitrant enterococcal bloodstream infections are at greater risk of adverse outcomes. We identified patients in the 2016-2022 Vancomycin-Resistant Enterococcal Bacteremia Outcomes Study (VENOUS) cohort experiencing recalcitrant bloodstream infections for further clinical and genomic characterization.

Methods: Bacteremia episodes were considered "persistent" if there was a lack of clearance on day four while receiving ≥ 48 hours of active therapy and recurrent if there was clearance during hospitalization with a subsequent positive culture (collectively, "recalcitrant" bacteremia).

Validation of a modified rapid test to detect the cefazolin inoculum effect in methicillin-susceptible Staphylococcus aureus from bloodstream infections in hospitals from North and Latin America.

Background: The cefazolin inoculum effect (CzIE), defined here as a cefazolin MIC at high inoculum (107 colony-forming units/mL)  ≥16 mg/L in MSSA, has been associated with less favourable clinical outcomes. However, detection of this phenotype is challenging in the clinical microbiology laboratory. We previously described modification of a rapid nitrocefin test using ampicillin disks rather than ampicillin powder for induction of the Staphylococcus aureus β-lactamase (BlaZ).

Changing trends in the sources and volumes of clinical cultures with Candida auris at an integrated health system in Miami, Florida, United States, 2019-2023.

Background: Candida auris (C auris) has rapidly spread in the United States. We aimed to characterize the trends in volumes and sources of clinical cultures with C auris at a large health care system.

Methods: We conducted a retrospective observational study including clinical cultures with C auris collected between April 1, 2019, and December 31, 2023.

Endocuff Vision-Assisted Colonoscopy Significantly Improves Adenoma Detection in a Shorter Withdrawal Time Compared with Standard Colonoscopy: A Randomized Controlled Trial.

Introduction: Although several studies in Western countries have shown that Endocuff Vision-assisted colonoscopy (EC) can improve the colorectal adenoma detection rate (ADR), such evidence in Asia is still scarce. This study aimed to evaluate the performance of EC in detecting colorectal adenomas in Vietnamese patients.

Methods: This was a randomized controlled trial conducted at a tertiary hospital in Vietnam.

Effectiveness of ceftazidime-avibactam versus ceftolozane-tazobactam for multidrug-resistant Pseudomonas aeruginosa infections in the USA (CACTUS): a multicentre, retrospective, observational study.

Background: Ceftolozane-tazobactam and ceftazidime-avibactam are preferred treatment options for multidrug-resistant Pseudomonas aeruginosa infections; however, real-world comparative effectiveness studies are scarce. Pharmacokinetic and pharmacodynamic differences between the agents might affect clinical response rates. We aimed to compare the effectiveness of ceftolozane-tazobactam and ceftazidime-avibactam for treatment of invasive multidrug-resistant P aeruginosa infections.

In Children, -Methyl-D-Aspartate Receptor Antibody Encephalitis Incidence Exceeds That of Japanese Encephalitis in Vietnam.

Background: The recognition of autoimmune causes of encephalitis has led to epidemiological shifts in the worldwide characteristics of encephalitis. -methyl-D-aspartate receptor (NMDAR) antibody encephalitis leads to well-established complex neuropsychiatric manifestations. In low- and middle-income countries, including Vietnam, its relative incidence, especially in children, is unknown and most neurologists currently consider infectious encephalitis prior to autoimmune etiologies.

Molecular basis of cell membrane adaptation in daptomycin-resistant Enterococcus faecalis.

Daptomycin is a last-resort lipopeptide antibiotic that disrupts cell membrane (CM) and peptidoglycan homeostasis. Enterococcus faecalis has developed a sophisticated mechanism to avoid daptomycin killing by redistributing CM anionic phospholipids away from the septum. The CM changes are orchestrated by a 3-component regulatory system, designated LiaFSR, with a possible contribution of cardiolipin synthase (Cls).

Prevalence of the cefazolin inoculum effect (CzIE) in nasal colonizing methicillin-susceptible in patients from intensive care units in Colombia and use of a modified rapid nitrocefin test for detection.

The cefazolin inoculum effect (CzIE) has been associated with poor clinical outcomes in patients with methicillin-susceptible (MSSA) infections. We aimed to investigate the point prevalence of the CzIE among nasal colonizing MSSA isolates from ICU patients in a multicenter study in Colombia (2019-2023). Patients underwent nasal swabs to assess for colonization on admission to the ICU, and some individuals had follow-up swabs.

Prevalence of methicillin-resistant Staphylococcus aureus (MRSA) harboring mupirocin and biocide resistance genes in a large health care system.

Background: We aimed to determine the prevalence of genes associated with high-level mupirocin and biocide resistance in methicillin-resistant Staphylococcus aureus (MRSA) isolates among hospitalized patients and to characterize their genomic and epidemiologic features.

Methods: Study conducted on an integrated health system. Clinical cultures with MRSA from hospitalized patients collected between March 1, 2023, and January 20, 2024 underwent prospective whole-genome sequencing, including assessment for the presence of markers of resistance against mupirocin (mupA) and biocides (qac).

Esophageal achalasia compressing the left atrium and mimicking an extracardiac tumor on the transthoracic echocardiography: A case report.

Achalasia is an uncommon disorder affecting esophageal motility. Occasionally, the appearance of a dilated esophagus in achalasia may resemble an extracardiac tumor when observed through transthoracic echocardiography. Left atrial compression due to extensive esophageal dilation is also rare, potentially leading to hemodynamic compromise.

Effects of film-forming components on the viability of probiotics and the application of synbiotic pectin film in preserving Da Xanh pomelo and Thai jackfruit fresh-cut.

Minimally processed products are highly convenient, and fresh-cut fruits coated with the synbiotic film have many advantages. This study investigated the film-forming components and preservation ability of Da Xanh pomelo and Thai jackfruit fresh-cut by synbiotic pectin film. The results showed that PA70 film combined with 1.

Prevalence of the Cefazolin Inoculum Effect (CzIE) in Nasal Colonizing Methicillin-Susceptible in Patients from Intensive Care Units in Colombia and Use of a Modified Rapid Nitrocefin Test for Detection.

The cefazolin inoculum effect (CzIE) has been associated with poor clinical outcomes in patients with MSSA infections. We aimed to investigate the point prevalence of the CzIE among nasal colonizing MSSA isolates from ICU patients in a multicenter study in Colombia (2019-2023). Patients underwent nasal swabs to assess for colonization on admission to the ICU and some individuals had follow-up swabs.

Cefiderocol heteroresistance associated with mutations in TonB-dependent receptor genes in of clinical origin.

The siderophore-cephalosporin cefiderocol (FDC) presents a promising treatment option for carbapenem-resistant (CR) (PA). FDC circumvents traditional porin and efflux-mediated resistance by utilizing TonB-dependent receptors (TBDRs) to access the periplasmic space. Emerging FDC resistance has been associated with loss of function mutations within TBDR genes or the regulatory genes controlling TBDR expression.

The 2.5 generation enzymatic sensors based on the construction of quasi-direct electron transfer type NAD(P)-Dependent dehydrogenases.

We introduce a versatile method to convert NAD or NADP -dependent dehydrogenases into quasi-direct electron transfer (quasi-DET)-type dehydrogenases, by modifying with a mediator on the enzyme surface toward the development of 2.5 generation enzymatic sensors. In this study, we use β-hydroxybutyrate (BHB) dehydrogenase (BHBDh) from Alcaligenes faecalis (AfBHBDh) as a representative NAD or NADP -dependent dehydrogenase.