Characterization of Metallo β-Lactamase Producing Isolates with Susceptibility to the Aztreonam/Avibactam Combination.

Metallo-β-lactamases (MBLs) in and other Gram-negative organisms pose significant public health threats due to their association with multidrug resistance (MDR). Although aztreonam (AZT) can target MBL-producing organisms, its efficacy is compromised in organisms expressing additional β-lactamases that inactivate it. Combining AZT with the β-lactamase inhibitor avibactam (AVI) may restore its activity against MBL-producing isolates.

IgM Flare in Anti-MAG Neuropathy Post Rituximab Treatment: A Clinical Case and a Systematic Review of the Literature.

Background/objectives: Anti-MAG polyneuropathy is a demyelinating peripheral neuropathy associated with IgM monoclonal gammopathies, particularly MGUS (monoclonal gammopathy of undetermined significance) and Waldenström macroglobulinemia. It is characterized by a subacute onset of distal sensory symptoms, with distal motor dysfunction typically appearing only in the later stages of the disease. The condition is caused by the presence of autoantibodies directed against myelin-associated glycoprotein, a structural protein of myelin.

Connexin-43 in Cancer: Above and Beyond Gap Junctions!

Connexin-43 (Cx43) is the most characterized gap junction protein, primarily involved in the Gap Junctional Intercellular Communication (GJIC) between adjacent cells to facilitate molecule exchange and the formation of a signaling network. It is increasingly evident that the importance of Cx43 is not only limited to its GJIC function, but rather includes its role in connecting the intracellular and extracellular environment by forming membrane hemichannels, as well as its intracellular signaling function mediated by its C-terminal tail (Cx43-CT). Notably, Cx43 has been implicated in a variety of cancers, with earlier notions suggesting a tumor-suppressor function, whereas new studies shed light on its pro-tumorigenic role.

Interplay of Oxidative Stress, Gut Microbiota, and Nicotine in Metabolic-Associated Steatotic Liver Disease (MASLD).

Oxidative stress has been described as one of the main drivers of intracellular damage and metabolic disorders leading to metabolic syndrome, a major health problem worldwide. In particular, free radicals alter lipid metabolism and promote lipid accumulation in the liver, existing in the hepatic facet of metabolic syndrome, the metabolic dysfunction-associated steatotic liver disease (MASLD). Recent literature has highlighted how nicotine, especially if associated with a high-fat diet, exerts a negative effect on the induction and progression of MASLD by upregulating inflammation and increasing oxidative stress, abdominal fat lipolysis, and hepatic lipogenesis.

Incorporating immune checkpoint inhibitors in epithelial ovarian cancer.

Objective: Therapeutic interventions for epithelial ovarian cancer (EOC) have increased greatly over the last decade but improvements outside of biomarker selected therapies have been limited. There remains a pressing need for more effective treatment options that can prolong survival and enhance the quality of life of patients with EOC. In contrast to the significant benefits of immunotherapy with immune checkpoint inhibitors (CPI) seen in many solid tumors, initial experience in EOC suggests limited efficacy of CPIs monotherapy.

Risk Factors for Anastomotic Leakage: A Comprehensive Single-Center Analysis of Colorectal Anastomoses for Ovarian and Gastrointestinal Cancers.

Background: Anastomotic leakage (AL) is a major complication in colorectal surgery, particularly following rectal cancer surgery, necessitating effective prevention strategies. The increasing frequency of colorectal resections and anastomoses during cytoreductive surgery (CRS) for peritoneal carcinomatosis further complicates this issue owing to the diverse patient populations with varied tumor distributions and surgical complexities. This study aims to assess and compare AL incidence and associated risk factors across conventional colorectal cancer surgery (CRC), gastrointestinal CRS (GI-CRS), and ovarian CRS (OC-CRS), with a secondary focus on evaluating the role of protective ostomies.

Rescue therapy after failed thrombectomy in medium/distal vessel occlusions: A retrospective analysis of an international, multi-center registry.

Background: There are limited therapeutic options in cases of failed reperfusion (modified thrombolysis in cerebral infarction [mTICI] score < 2b) after stent-retriever and/or aspiration based endovascular treatment (EVT) for acute ischemic stroke. Despite the absence of data supporting its use, rescue therapy (balloon angioplasty and/or stent implantation) is often utilized in such cases. Studies are limited to large vessel occlusions, while the outcomes and complications after rescue therapy in medium/distal vessel occlusions (MDVOs) have not been reported.

Cord blood platelet-rich plasma: proteomics analysis for ophthalmic applications.

Our objective is to determine the protein and complements constituents of Cord blood Platelet-rich plasma (CB-PRP), based on the hypothesis that it contains beneficial components capable of arresting or potentially decelerating the advancement of atrophic age-related macular degeneration (dry-AMD), with the support of radiomics. Two distinct pools of CB-PRP were assessed, each pool obtained from a total of 15 umbilical cord-blood donors. One aliquot of each pool respectively was subjected to proteomic analysis in order to enhance the significance of our findings, by identifying proteins that are shared between the two sample pools and gaining insights into the pathways they are associated with.

ESR Essentials: imaging of lymphoma-practice recommendations by the European Society of Oncologic Imaging.

Imaging is used for lymphoma detection, Ann Arbor/Lugano staging, and treatment response assessment. [F]FDG PET/CT should be used for most lymphomas, including Hodgkin lymphoma, aggressive/high-grade Non-Hodgkin lymphomas (NHL) such as diffuse large B-cell lymphoma, and many indolent/low-grade NHLs such as follicular lymphoma. Apart from these routinely FDG-avid lymphomas, some indolent NHLs, such as marginal zone lymphoma, are variably FDG-avid; here, [F]FDG PET/CT is an alternative to contrast-enhanced CT at baseline and may be used for treatment response assessment if the lymphoma was FDG-avid at baseline.

Semiquantitative 2-[F]FDG PET/CT-based parameters role in lymphoma.

2-deoxy-2-[F]-fluoro-D-glucose (2-[F]FDG) positron emission tomography/computed tomography (PET/CT) plays a crucial role in the management of lymphoma in different settings, such as staging disease, assessing response to therapy, predicting prognosis, and planning RT. Beside visual analysis, several semiquantitative parameters were introduced to study lymphoma with promising results. These parameters can represent different disease characteristics, like body composition (such as sarcopenic index), dissemination of disease (Dmax), tumor burden (including metabolic tumor volume) and texture features.

Hand hygiene, knowledge and training motivational drives: findings from a survey in a university hospital.

This study assessed healthcare workers' (HCWs) knowledge and adherence to hand hygiene principles in a large Italian university hospital, focusing on identifying knowledge gaps and evaluating training effectiveness. A specifically designed 17-item questionnaire, based on the World Health Organization (WHO) Hand Hygiene Knowledge Questionnaire, was used to measure theoretical knowledge, the role of training, and the impact of experience. The survey had an 8% participation rate (542 responses from a total of 6,749 HCWs), with higher responses among nurses and doctors.

The expanding role of 16s ribosomal RNA PCR in the management of patients with infective endocarditis undergoing cardiac surgery.

Background: Aetiological diagnosis and targeted antibiotic therapy are essential to improve the prognosis of patients with infective endocarditis. Molecular tests on blood have been reported to be effective in identifying the causative organism and are recommended when blood cultures are negative. The role of molecular tests on the surgically excised valve is still unclear and needs further investigation.

Short- and long-term outcomes of vaginal, laparoscopic, and robotic-assisted surgery in "oldest old" endometrial cancer.

Objective: To assess the safety and long-term effectiveness of minimally invasive approach in managing "oldest old" endometrial cancer patients.

Methods: This is a retrospective cohort, multi-institutional study. Consecutive patients, treated between 2000 and 2020, with apparent early-stage endometrial cancer patients, aged ≥85 years.

Pleomorphic dermal sarcoma of the scalp with intracranial space involvement: management of a rare entity. Illustrative case.

Background: Exophytic tumors of the calvaria (ETCs) remain a challenging pathology because of their complex management. The authors discuss the case of a woman with a large exophytic mass of the right frontotemporal region and underline their decision-making process on the management of this unique case and possible similar ones.

Observations: Neuroradiological findings showed a calvarial tumor with both epicranial and intracranial extension involving the frontotemporal bone with a mixed component (lytic and sclerotic) and dural infiltration with a pseudonodular pattern.

Ultrasound-Guided Axillary Vein Puncture Versus Landmark-Guided Approach for Cardiac Implantable Electronic Device Placement.

Introduction: Ultrasound (US)-guided axillary vein puncture is a safe and effective approach for cardiac implantable electronic device (CIED) implantation, and it is highly recommended by the current consensus document. However, only reports on small populations are available in the current literature regarding the comparison of this technique with other traditional approaches (subclavian vein blind puncture and cephalic vein surgical cutdown).

Purpose: We aimed to assess the effectiveness and safety of US- guided axillary vein puncture using a microintroducer kit for CIED implantation as compared to the aforementioned traditional approaches.

An AMBRA1, ULK1 and PP2A regulatory network regulates cytotoxic T cell differentiation via TFEB activation.

The scaffold protein AMBRA1, which participates in the autophagy pathway, also promotes CD4 T cell differentiation to Tregs independent of autophagy through its interactor PP2A. Here we have investigated the role of AMBRA1 in CD8 T cell differentiation to cytotoxic T cells (CTL). AMBRA1 depletion in CD8 T cells was associated with impaired expression of the transcription factors RUNX3 and T-BET that drive CTL differentiation and resulted in impaired acquisition of cytotoxic potential.

Polygenic Score: A Tool for Evaluating the Genetic Background of Sporadic Hidradenitis Suppurativa.

Sporadic Hidradenitis Suppurativa (spHS) is a multifactorial disease in which genetic predisposition is intertwined with environmental factors. Due to the still to date limited knowledge of spHS genetics, we calculated Polygenic scores (PGS) to study the genetic underpinnings that contribute to spHS within European demographic. 256 spHS patients and 1686 healthy controls were analyzed across 6 European clinical centers.

Ultrasound-assisted and landmark-based nusinersen delivery in spinal muscular atrophy adults: A retrospective analysis.

Introduction/purpose: Nusinersen, the first treatment approved for all spinal muscular atrophy (SMA) types, is administered intrathecally through lumbar puncture. We used ultrasound assistance or a landmark-based technique to access the lumbar intrathecal space in adult SMA patients. This study aimed to evaluate the technical success and adverse events (AEs) in such patients using either technique over a long observation period.

Factors associated with oxidative stress in virologically suppressed people living with HIV on long-term antiretroviral therapy.

Background: Oxidative stress (OS) is the imbalance between oxidant and antioxidant molecules, in favour of oxidants, that has been associated with an increased risk of morbidity and mortality in ART-treated people living with HIV (PLWH). We aimed to assess factors associated with OS in virologically suppressed PLWH on long-term modern ART.

Method: In this cross-sectional study we evaluated OS by measuring both the levels of derivatives-reactive oxygen metabolites (d-ROMs) and the biological antioxidant potential (BAP).

Assessment of Emphysema on X-ray Equivalent Dose Photon-Counting Detector CT: Evaluation of Visual Scoring and Automated Quantification Algorithms.

Objectives: The aim of this study was to evaluate the feasibility and efficacy of visual scoring, low-attenuation volume (LAV), and deep learning methods for estimating emphysema extent in x-ray dose photon-counting detector computed tomography (PCD-CT), aiming to explore future dose reduction potentials.

Methods: One hundred one prospectively enrolled patients underwent noncontrast low- and chest x-ray dose CT scans in the same study using PCD-CT. Overall image quality, sharpness, and noise, as well as visual emphysema pattern (no, trace, mild, moderate, confluent, and advanced destructive emphysema; as defined by the Fleischner Society), were independently assessed by 2 experienced radiologists for low- and x-ray dose images, followed by an expert consensus read.

Fulminant Invasive Aspergillosis in a Previously Healthy Woman After Cesarean Section and a Review of the Literature.

Invasive aspergillosis is an extremely rare condition in healthy and immunocompetent individuals, and very few cases have been reported in previously healthy, pregnant, or postpartum women. We describe a case of invasive aspergillosis in a puerperal patient and present literature review results. We present a case of fulminant invasive pulmonary aspergillosis with cerebral, cardiac, and gastric involvement in a young woman, occurring a few days after an elective cesarean section.