Contribution of Nuclear Fragmentation to Dose and RBE in Carbon-Ion Radiotherapy.

Variable relative biological effectiveness (RBE) of carbon radiotherapy may be calculated using several models, including the microdosimetric kinetic model (MKM), stochastic MKM (SMKM), repair-misrepair-fixation (RMF) model, and local effect model I (LEM), which have not been thoroughly compared. In this work, we compared how these four models handle carbon beam fragmentation, providing insight into where model differences arise. Monoenergetic and spread-out Bragg peak carbon beams incident on a water phantom were simulated using Monte Carlo.

Testing for myelin oligodendrocyte glycoprotein antibodies: Who, what, where, when, why, and how.

Testing for myelin oligodendrocyte glycoprotein immunoglobulin G antibodies (MOG-IgG) is essential to the diagnosis of MOG antibody-associated disease (MOGAD). Due to its central role in the evaluation of suspected inflammatory demyelinating disease, the last 5 years has been marked by an abundance of research into MOG-IgG testing ranging from appropriate patient selection, to assay performance, to utility of serum titers as well as cerebrospinal fluid (CSF) testing. In this review, we synthesize current knowledge pertaining to the "who, what, where, when, why, and how" of MOG-IgG testing, with the aim of facilitating accurate MOGAD diagnosis in clinical practice.

Natural Product Identification and Molecular Docking Studies of Leishmania Major Pteridine Reductase Inhibitors.

: Pteridine reductase 1 (PTR1) has been one of the prime targets for discovering novel antileishmanial therapeutics in the fight against Leishmaniasis. This enzyme catalyzes the NADPH-dependent reduction of pterins to their tetrahydro forms. While chemotherapy remains the primary treatment, its effectiveness is constrained by drug resistance, unfavorable side effects, and substantial associated costs.

Associations of Voice Metrics with Postural Function in Parkinson's Disease.

Background: This study aimed to explore the potential associations between voice metrics of patients with PD and their motor symptoms.

Methods: Motor and vocal data including the Unified Parkinson's Disease Rating Scale part III (UPDRS-III), Harmonic-Noise Ratio (HNR), jitter, shimmer, and smoothed cepstral peak prominence (CPPS) were analyzed through exploratory correlations followed by univariate linear regression analyses. We employed these four voice metrics as independent variables and the total and sub-scores of the UPDRS-III as dependent variables.

Utilization of RT-PCR and Optical Genome Mapping in Acute Promyelocytic Leukemia with Cryptic Rearrangement: A Case Discussion and Systemic Literature Review.

Background: Acute promyelocytic leukemia (APL) is characterized by abnormal promyelocytes and t(15;17)(q24;q21) . Rarely, patients may have cryptic or variant rearrangements. All-trans retinoic acid (ATRA)/arsenic trioxide (ATO) is largely curative provided that the diagnosis is established early.

SNP rs9364554 Modulates Androgen Receptor Binding and Drug Response in Prostate Cancer.

(1) Background: Prostate cancer treatment efficacy is significantly influenced by androgen receptor (AR) signaling pathways. SLC22A3, a membrane transporter, has been linked to SNP rs9364554 risk loci for drug efficacy in prostate cancer. (2) Methods: We examined the location of SNP rs9364554 in the genome and utilized TCGA and other publicly available datasets to analyze the association of this SNP with transcription levels.

Blockade of LIF and PD-L1 Enhances Chemotherapy in Preclinical PDAC Models.

: Pancreatic ductal adenocarcinoma (PDAC), expecting to be the second leading cause of cancer deaths by 2030, resists immune checkpoint therapies due to its immunosuppressive tumor microenvironment (TME). Leukemia inhibitory factor (LIF) is a key target in PDAC, promoting stemness, epithelial-mesenchymal transition (EMT), and therapy resistance. Phase 1 clinical trials showed anti-LIF therapy is safe but with limited efficacy, suggesting better outcomes when combined with chemotherapy, radiotherapy, or immunotherapy.

Food Security and Cardio-Metabolic Risk in Individuals with Metabolic Syndrome.

This study assessed the association of food security with potential cardio-metabolic risk factors among persons with metabolic syndrome (MetS). Data were derived from the baseline data of a randomized controlled lifestyle intervention trial for individuals with MetS. Household food security, fruit and vegetable intake, perceived food environment, and perceived stress were collected using validated questionnaires.

Physicians' knowledge, attitudes, and beliefs regarding practices of male and female surgical sterilization procedures in Lebanon.

Objective: Surgical sterilization, including vasectomy in males and tubal ligation in females, is a highly effective but underutilized contraception method. Adoption rates vary globally mostly due to misconceptions by both the general public and practicing physicians. Our survey aims to explore physicians' knowledge, attitudes and beliefs about surgical sterilization techniques in Lebanon.

Dual anti-CTLA-4 and anti-PD-1 blockade in metastatic basal cell carcinoma.

We report the basal cell cancer (BCC) cohort of the SWOG/NCI 1609 Dual Anti-CTLA-4 & Anti-PD-1 blockade in Rare Tumors (DART), a phase II prospective, multicenter basket trial of nivolumab and ipilimumab. The primary endpoint was objective response rate (ORR) (RECIST v1.1).

Cracking the Code of Calcification: How Presence and Burden among Intracranial Arteries Influence Stroke Incidence and Recurrence.

Background: Intracranial atherosclerosis accounts for about 8% of all strokes in Western societies but the influence of arterial calcification on plaque instability is a topic on ongoing debate.

Purpose: Explore the association between the presence and burden of calcium in atherosclerotic plaques among intracranial arteries with the risk of clinical or silent stroke events through a systematic review and meta-analysis.

Data Sources: Adhering to PRISMA guidelines, studies from PubMed and Embase were analyzed up to May 2024.

Clinical outcomes of patients with unsuccessful mechanical thrombectomy versus best medical management of medium vessel occlusion stroke in the middle cerebral artery territory.

Background: Current randomized controlled trials are investigating the efficacy and safety of mechanical thrombectomy (MT) in patients with medium vessel occlusion (MeVO) stroke. Whether best medical management (MM) is more efficient than unsuccessful vessel recanalization during MT remains unknown.

Methods: This was a retrospective cohort study using data from 37 academic centers across North America, Asia, and Europe between September 2017 and July 2021.

Mechanical thrombectomy in elderly stroke patients with low ASPECTS: insights from STAR.

Background: The elderly population (≥80 years) were underrepresented in recent trials of endovascular thrombectomy (EVT) for anterior circulation large vessel occlusion acute ischemic stroke (LVO-AIS) with low Alberta Stroke Program Early CT Score (ASPECTS) (≤5).

Methods: This study analyzed data from a prospectively maintained database of 37 thrombectomy centers. The primary cohort of the study comprised patients with LVO-AIS aged ≥80 who underwent EVT with ASPECTS≤5 from 2013 to 2023.

Efficacy and safety of mechanical thrombectomy in patients with acute ischemic stroke and left ventricular assist device: review of the literature and meta-analysis.

Background: Left ventricular assist devices (LVADs) are used as definitive therapy or as a bridge to heart transplant in patients with advanced heart failure. Thromboembolic complications such as acute ischemic stroke (AIS) are common among patients with LVAD support. This study aims to evaluate the current evidence on the efficacy and safety of mechanical thrombectomy (MT) in patients with AIS due to large vessel occlusions (LVO) and LVAD-support.

The Relationship Between Hispanic Ethnicity and Outcomes for Infants Born Extremely Preterm.

Objective: To characterize the association between maternal ethnicity and infant survival to discharge without major morbidity.

Study Design: This is secondary analysis of a prospective cohort of infants born <27 weeks of gestation at NICHD Neonatal Research Network centers from 2006 through 2020. The primary outcome was survival to discharge without major morbidity (sepsis, necrotizing enterocolitis, bronchopulmonary dysplasia grade 3, intracranial hemorrhage grade ≥3, periventricular leukomalacia, and advanced retinopathy of prematurity).

Implantable Cardioverter-Defibrillators and Cardiovascular Resynchronization Therapy with Left Ventricular Assist Devices: A MOMENTUM 3 Trial Analysis.

Background: The benefit of implantable cardioverter-defibrillators (ICD) and cardiovascular resynchronization therapy (CRT-D) in patients supported with a HeartMate 3 left ventricular assist device (LVAD) remains uncertain.

Methods: An analysis of the MOMENTUM 3 randomized clinical trial and the first 1000 patients in the Continued Access Protocol trial. Patients were divided into three groups based on the presence of ICD and/or CRT-D: No device (n=153, 11%), ICD only (n=699, 50.

Consensus statement on the treatment of proximal humerus fractures: a Delphi approach by the Neer Circle of the American Shoulder and Elbow Surgeons.

Background: The treatment of patients who suffer a proximal humeral fracture (PHF) remains controversial. The purpose of this study was to find consensus among experts using a validated iterative process in the treatment of patients after a PHF.

Methods: The Neer Circle is an organization of shoulder experts recognized for their service to the American Shoulder and Elbow Surgeons.

Estimating very low ejection fraction from the 12 Lead ECG among patients with acute heart failure.

Background: Identifying patients with low left ventricular ejection fraction (LVEF) in the emergency department using an electrocardiogram (ECG) may optimize acute heart failure (AHF) management. We aimed to assess the efficacy of 527 automated 12‑lead ECG features for estimating LVEF among patients with AHF.

Method: Medical records of patients >18 years old and AHF-related ICD codes, demographics, LVEF %, comorbidities, and medication were analyzed.

Antiseizure medications for Lennox-Gastaut Syndrome: Comprehensive review and proposed consensus treatment algorithm.

Lennox-Gastaut syndrome (LGS) is a severe, childhood-onset developmental and epileptic encephalopathy characterized by multiple drug-resistant seizure types, specific electroencephalogram (EEG) patterns, and significant cognitive and behavioral impairments. To date, eight anti-seizure medications (ASMs) have been specifically approved by the U.S.

Treatment With Avacopan in Patients With Respiratory Tract Manifestations of Antineutrophil Cytoplasmic Antibody-Associated Vasculitis.

Objective: The ADVOCATE trial demonstrated that treatment of active granulomatosis with polyangiitis (GPA) and microscopic polyangiitis (MPA) with avacopan was noninferior in achieving remission at week 26 and superior for sustained remission at week 52 compared with a prednisone taper. This analysis of ADVOCATE evaluated the efficacy and safety of avacopan in patients with ear, nose, throat (ENT), or lung manifestations.

Methods: This post hoc analysis included patients enrolled in ADVOCATE with ENT or lung manifestations at baseline.

COVID-19 Pandemic and Racial and Ethnic Disparities in Long-Term Nursing Home Stay or Death Following Hospital Discharge.

Importance: Long-term nursing home stay or death (long-term NH stay or death), defined as new long-term residence in a nursing home or death following hospital discharge, is an important patient-centered outcome.

Objective: To examine whether the COVID-19 pandemic was associated with changes in long-term NH stay or death among older adults with sepsis, and whether these changes were greater in individuals from racial and ethnic minoritized groups.

Design, Setting, And Participants: This cross-sectional study used patient-level data from the Medicare Provider Analysis and Review File, the Master Beneficiary Summary File, and the Minimum Data Set.

Prophylactic Use of Cardiac Medications and Survival in Duchenne Muscular Dystrophy.

Introduction/aims: Prophylactic treatment of left ventricular dysfunction (LVD) in Duchenne muscular dystrophy (DMD) delays onset of LVD, but there is limited data showing impact on survival. Our aim was to describe survival among treated and untreated individuals with DMD.

Methods: Retrospective, population-based surveillance data from the Muscular Dystrophy Surveillance, Tracking and Research Network (MD STARnet) were used.

International Validation of a Novel PEACE Scale to Improve the Quality of Upper Gastrointestinal Mucosal Inspection During Endoscopy.

Introduction: The performance of a high quality esophagogastroduodenoscopy (EGD) is dependent on the mucosal cleanliness. Recently, the Polprep: Effective Assessment of Cleanliness in EGD (PEACE) scale was created to assess the degree of mucosal cleanliness during EGD. The aim of this study was to validate this scoring system in a cohort of international endoscopists.

Optimizing Electroconvulsive Therapy With E-Field Modeling: A Narrative Review.

Electroconvulsive therapy (ECT) is an effective treatment for severe depression, especially in treatment-resistant cases. However, its potential cognitive side effects necessitate careful dosing to balance therapeutic benefits and cognitive stability. Recent advances in electric field (E-field) modeling offer promising avenues to optimize ECT dosing.