Publications by authors named "Sabbagh S"

Essential thrombocythemia (ET) is a type of myeloproliferative neoplasm (MPN) disorder characterized by persistent thrombocytosis and characterized by frequent association with cellular genetic alterations. The 10%-15% of ET that is not associated with genetic abnormalities is known as triple-negative essential thrombocythemia (TNET). A common complication observed in around 20% of ET patients is the development of acquired von Willebrand disease (AvWD).

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Carbon black (CB) as rubber reinforcement has raised environmental concerns regarding this traditional petroleum-based filler, which is less susceptible to biodegradability. Although it has great reinforcing properties, the production technique is no longer sustainable, and its cost increases regularly. For these reasons, it is wise to look for sustainable replacement materials.

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Neurotrophins are proteins that mediate neuronal development using spatiotemporal signaling gradients. The chicken nucleus magnocellularis (NM), an analogous structure to the mammalian anteroventral cochlear nucleus, provides a model system in which signaling between the brain-derived neurotrophic factor (BDNF) and tyrosine receptor kinase B (TrkB) is temporally regulated. In the NM, TrkB expression is high early in development (embryonic [E] day 9) and is downregulated until maturity (E18-21).

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  • Juvenile dermatomyositis (JDM) is a common inflammatory muscle disease in children that still causes significant health issues despite improvements in treatment.
  • Different clinical types of JDM are linked to specific myositis-related antibodies, suggesting a correlation between the disease's manifestations and underlying biology.
  • The paper discusses how combining clinical observations with molecular analysis can inform more effective targeted therapies by understanding the role of immune pathways in JDM.
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  • * Thirty male Wistar rats were used in the experiment, divided into groups receiving either gentamicin, beta-carotene, both, or control treatments, with tests done on serum and tissues to evaluate hepatorenal function.
  • * Results showed that beta-carotene significantly reduced markers of liver and kidney damage (like SGOT, SGPT, creatinine, and urea levels) compared to gentamicin alone, suggesting it may be beneficial as an additional treatment for patients receiving gentamicin.
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  • A study evaluated the safety and efficacy of endovascular thrombectomy in patients with acute large-vessel occlusion and tandem lesions, focusing on those with low (0-5) and high (6-10) Alberta Stroke Program Early Computed Tomography Scores (ASPECTS).
  • The analysis included 691 patients, revealing that those with low ASPECTS had significantly lower odds of achieving a favorable functional outcome (mRS 0-2) and higher odds of suffering symptomatic intracranial hemorrhage compared to those with high ASPECTS.
  • The researchers concluded that endovascular thrombectomy may lead to poorer functional recovery in patients with tandem lesions and low ASPECTS, particularly in the
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  • Internal organ development in embryos involves the process of cell internalization, which can happen individually or collectively, with epithelial invagination being a well-studied method.
  • The study focuses on the Drosophila embryo, specifically the anterior midgut primordium, revealing that an epithelial-mesenchymal transition (EMT) happens during its internalization while still at the surface.
  • The findings suggest that this process of collective EMT aids in the primordium's internalization through both cell divisions and the movement of cells, supported by the remodeling of adjacent tissues.
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Gastrulation involves multiple, physically-coupled tissue rearrangements. During Drosophila gastrulation, posterior midgut (PMG) invagination promotes both germband extension and hindgut invagination, but whether the normal epithelial rearrangement of PMG invagination is required for morphogenesis of the connected tissues has been unclear. In steppke mutants, epithelial organization of the PMG primordium is strongly disrupted.

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Objective: Previous studies assessing factors associated with drug-resistant epilepsy (DRE) were constrained by their amalgamation of all epilepsy syndromes in their analyses and the absence of uniform criteria for defining DRE. Our objective was to identify predictors of DRE among the four primary childhood epilepsy syndrome groups within a cohort of children with new onset seizures, using the International League Against Epilepsy (ILAE) definition of DRE and the recent classification of epilepsies.

Methods: This is a prospective study of 676 children with new onset seizures initiated on antiseizure medication.

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Introduction: Following amputation, peripheral nerves lack distal targets for regeneration, often resulting in symptomatic neuromas and debilitating neuropathic pain. Animal models can establish a practical method for symptomatic neuroma formation for better understanding of neuropathic pain pathophysiology through behavioral and histological assessments. We created a clinically translatable animal model of symptomatic neuroma to mimic neuropathic pain in patients and assess sexual differences in pain behaviors.

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Importance: Among patients with metastatic colorectal cancer (mCRC), data are limited on disparate biomarker testing and its association with clinical outcomes on a national scale.

Objective: To evaluate the socioeconomic and demographic inequities in microsatellite instability (MSI) and KRAS biomarker testing among patients with mCRC and to explore the association of testing with overall survival (OS).

Design, Setting, And Participants: This cohort study, conducted between November 2022 and March 2024, included patients who were diagnosed with mCRC between January 1, 2010, and December 31, 2017.

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Background: The desirable properties of silver diamine fluoride (SDF) make it an effective agent for managing dental caries and tooth hypersensitivity. There are several clinical instances that SDF application might precede the placement of direct tooth-colored restorations. On the other hand, SDF stains demineralized/carious dental tissues black, which might affect the esthetic outcomes of such restorations.

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  • * Method: A specialized group utilized surveys and consensus techniques to develop these CTPs, ensuring a collaborative approach among experts in the field.
  • * Results: Four distinct treatment plans were established, achieving high agreement among respondents on their effectiveness, with a preference for rituximab as the most likely choice for treatment.
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  • Tandem lesions involve stenosis or occlusion of the cervical internal carotid artery, often due to atherosclerosis or dissection, combined with a large vessel occlusion; this study compares patient outcomes based on the cause of ICA lesions.
  • The study analyzed data from 526 patients treated endovascularly between 2015 and 2020, focusing on 90-day functional independence and various secondary outcomes, using matching methods for analysis.
  • Results showed no differences in 90-day independence, but patients with dissection had lower successful recanalization rates and higher distal emboli incidents compared to those with atherosclerosis.
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Recurrent exposures to a pathogenic antigen remodel the CD8 T cell compartment and generate a functional memory repertoire that is polyclonal and complex. At the clonotype level, the response to the conserved influenza antigen, M1 has been well characterized in healthy individuals, but not in patients receiving immunosuppressive therapy or with aberrant immunity, such as those with juvenile idiopathic arthritis (JIA). Here we show that patients with JIA have a reduced number of M1 specific RS/RA clonotypes, indicating decreased clonal richness and, as a result, have lower repertoire diversity.

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Background: Using Silver Diamine Fluoride (SDF) may be an effective public health approach for managing dental caries in children. Parental acceptance of SDF has rarely been investigated in low-income and middle-income countries (LMICs). The aim of this study was to evaluate parental acceptance of SDF to manage dental caries in children aged 2-12 in Iran and Tajikistan.

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  • The study compares microbial and inflammatory profiles in periodontally and systemically healthy African American (AA) and Caucasian (C) individuals aged 5 to 25 years.
  • Results show that AA individuals had greater probing depth, while C individuals had higher caries and DMFT indices, with notable differences in inflammatory markers and microbial profiles between the groups.
  • The findings suggest that these distinct profiles may lead to varying susceptibility to oral diseases in AA and C individuals.
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Purpose: Patients with Breast Cancer (BC) with Brain Metastasis (BCBM) have poor survival outcomes. We aimed to explore the clinico-pathologic and therapeutic factors predicting the survival in patients with de novo BCBM using the National Cancer Database (NCDB).

Patients And Methods: The NCDB was queried for patients with BC between 2010 and 2020.

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Purpose: Disparities in cancer care have been exacerbated by the COVID-19 pandemic. The aim of this study is to establish how telehealth mitigated the effect of COVID-19 on the healthcare sector and to identify potential disparities in perception and experience with telehealth in cancer care during and after the pandemic.

Methods: We identified individuals with an established cancer diagnosis who received treatment at a comprehensive academic cancer center with a diverse patient population between 2019 and 2021, during the COVID-19 pandemic.

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Purpose: The objective of this multicentre randomised controlled trial was to compare the clinical/radiographic outcomes of cervical pulpotomy using calcium-enriched mixture cement (PCEM) and pulpectomy using Metapex (PM) in primary molars with irreversible pulpitis (IP).

Methods: A total of 134 primary molars from 94 children were randomly assigned to two intervention groups: the PCEM group (n = 74) and the PM group (n = 60). Baseline characteristics including age/gender/molar type/tooth type/jaw were recorded.

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Background: Endovascular therapy (EVT) stands as an established and effective intervention for acute ischemic stroke in patients harboring tandem lesions (TLs). However, the optimal anesthetic strategy for EVT in TL patients remains unclear. This study aims to evaluate the impact of distinct anesthetic techniques on outcomes in acute ischemic stroke patients presenting with TLs.

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Silver nanoparticles (Ag-NPs) have a unique mode of action as antibacterial agents in addition to their anticancer and antioxidant properties. In this study, microbial nanotechnology is employed to synthesize Ag-NPs using the cell filtrate of Streptomyces enissocaesilis BS1. The synthesized Ag-NPs are confirmed by ultraviolet-visible (UV-Vis), Fourier transform infrared (FT-IR), X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), and transmission electron microscopy (TEM).

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