Publications by authors named "Abdullah Al-Saleh"

Background: Fungal pathogens are ubiquitous microorganisms that are implicated in a wide range of infections, affecting individuals with underlying health conditions and immune suppression therapy; however, immunocompetent individuals may also be at risk. Among these infections, many are caused by molds and yeasts other than Candida and are recognized in clinical practice, such as aspergillosis, mucormycosis, fusariosis, phaeohyphomycosis, and basidiobolomycosis, among others, each presents different clinical manifestations and requires clinical management specific to the site of involvement. Although pathogenic fungal contaminants and potential sources of mycosis in humans are plentiful in Gulf Cooperation Council (GCC) countries, epidemiological reports regarding mycosis in the region are scarce.

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This paper introduces a new probabilistic composite model for the detection of zero-day exploits targeting the capabilities of existing anomaly detection systems in terms of accuracy, computational time, and adaptability. To address the issues mentioned above, the proposed framework consisted of three novel elements. The first key innovations are the introduction of "Adaptive WavePCA-Autoencoder (AWPA)" for pre-processing stage which address the denoising and dimensionality reduction, and contributes to the general dependability and accuracy of zero-day exploit detection.

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Hepatocellular carcinoma (HCC) is the third leading cause of cancer death worldwide with a poor prognosis. Treatment with immune checkpoint inhibitors (ICIs) has improved overall survival in patients with HCC. However, not all patients benefit from the treatment.

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Background Panton-Valentine leukocidin (PVL) is one of the most important determinants of virulence in It is associated with a propensity for complicating skin and soft tissue infections and necrotizing pneumonia. This study aims to quantitively examine the effect of ascorbic acid and nicotinamide on PVL production in the reference strain USA300. Methodology Sandwich enzyme-linked immunosorbent assay (ELISA) was used to quantitively measure the production of PVL via the commercial LukS sandwich ELISA kit (IBT Bio-services, MD, USA).

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The ventriculoperitoneal (VP) shunt has been one of the primary methods for treating hydrocephalus for many years and is one of the most frequent surgical interventions performed in neurosurgery using a variety of techniques and different VP shunt types. Consequently, shunt insertion is associated with many complications, including insertion failure, functional failure, and mechanical failure such as shunt migration. Shunt migration to the gastrointestinal or urogenital tract is a rare and one of the most distressing complications, which can lead to ascending infection and even meningitis.

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The Internet of Things field has created many challenges for network architectures. Ensuring cyberspace security is the primary goal of intrusion detection systems (IDSs). Due to the increases in the number and types of attacks, researchers have sought to improve intrusion detection systems by efficiently protecting the data and devices connected in cyberspace.

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Background: Methicillin-resistant (MRSA) is a ubiquitous pathogen associated with a wide spectrum of human infections. In recent decades, MRSA infections have been increasingly reported in individuals without established risk factors, infecting immunocompetent members of the community. This emergence is attributed to the production of various virulence factors, notably Panton-Valentine leukocidin (PVL).

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Methicillin-resistant (MRSA) is a pathogenic bacteria involved in a wide spectrum of human diseases. Many virulence factors promote this widespread propagation. One important factor is acquiring antibiotic resistance genes, which leads to a reduction in the availability and efficacy of therapy options.

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Background: Panton−Valentine Leukocidin sustains a strong cytotoxic activity, targeting immune cells and, consequently, perforating the plasma membrane and inducing cell death. The present study is aimed to examine the individual effect of ascorbic acid and nicotinamide on PVL cytotoxicity ex vivo, as well as their effect on granulocytes viability when treated with PVL. Materials and Methods: The PVL cytotoxicity assay was performed in triplicates using the commercial Cytotoxicity Detection Kit PLUS (LDH).

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Background: Methicillin-resistant Staphylococcus aureus (MRSA) is a ubiquitous pathogen that is increasing in Gulf Cooperation Council (GCC) countries. It is implicated in a wide range of infections, from superficial skin infections to lifethreatening syndromes. MRSA has moved beyond healthcare facilities, affecting individuals in the community without substantial risk factors.

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Background: Gastroenteritis is one of the most common diseases that affects children and remains a leading cause of morbidity and mortality around the world. There is conflicting evidence regarding the effect of rapid intravenous fluid regimen on the clinical outcome of patients with acute gastroenteritis. This study aimed to assess the current practice of intravenous hydration on the clinical outcomes of pediatric patients with acute gastroenteritis and determine the predictive factors for early discharge and emergency department (ED) revisit.

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We retrospectively reviewed 292 patients who received a second line of therapy post ASCT for their light chain amyloidosis. Most patients (40%) were treated with an alkylator + PI ± dex or PI ± dex followed by an alkylator + 2nd-gen IMiD ± dex or 2nd-gen IMiD ± dex (26%), an alkylator ± steroid or steroid monotherapy (19%), a 2nd-gen IMiD + PI ± dex (6%), an alkylator + thalidomide ± dex (5%), or daratumumab-based therapy (4%). The rate of CR or VGPR was 70% among the daratumumab-based group, 62% in the alkylator + PI ± dex or PI ± dex group, 55% in the alkylator + 2nd-gen IMiD ± dex or 2nd-gen IMiD ± dex group, 47% in the 2nd-gen IMiD + PI ± dex group, 24% in the alkylator ± steroid or steroid monotherapy group, and 18% in the alkylator + thalidomide ± dex group.

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Supernumerary lacrimal punctum is rare, and very few cases have been reported. Most patients are asymptomatic, but in some excessive tearing could be a symptom. In addition, obstruction of the canaliculi causing canaliculitis has been reported.

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Background: During their residency program, pediatric residents frequently face ethical challenges. The aim of the study is to evaluate the pediatric residents' knowledge and confidence to handle common ethical dilemmas during their training.

Methods: This is a survey-based cross-sectional study on all pediatric residents in the largest pediatric training center in Saudi Arabia.

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This is a retrospective study of patients with multiple myeloma (MM) who were >75 years old. We identified 394 patients and for non-trial patients ( = 350), immunomodulatory drug (IMiD)+dex (32%) was the most commonly used regimen followed by alkylator with steroids or other therapy (21%), alkylator + proteasome inhibitor (PI)+steroid (18%), and IMiD + PI + dex (13%). Overall, achieving ≥ very good partial response was more in patients receiving a triplet compared to other therapies (46% vs.

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Multiple myeloma (MM) remains an incurable disease despite incorporation of novel agents. Venetoclax, a B-cell lymphoma 2 (BCL-2) inhibitor is approved for some hematologic malignancies but not yet for MM, although clinical trials have shown efficacy in patients with MM, particularly those harboring t(11;14). We reviewed the medical records of relapsed and/or refractory MM patients to study the efficacy and safety of venetoclax used outside of clinical trials at Mayo Clinic between December, 2016 and March, 2019.

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Article Synopsis
  • Rheumatoid arthritis (RA) can lead to serious eye complications, such as corneal perforation, which is challenging to treat, especially in patients with severe dry eye, as seen in a 48-year-old woman whose condition worsened despite previously inactive RA.
  • The patient underwent multiple surgeries, including penetrating keratoplasty (PKP) and amniotic membrane transplant (AMT), but continued to experience corneal perforations, prompting adjustments in her medication regimen.
  • To effectively manage her condition, including a third corneal perforation, new treatments like infliximab were introduced, ultimately resulting in a stable graft and no further complications.
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Patients who undergo autologous stem cell transplantation (ASCT) for multiple myeloma (MM) are routinely assessed at day +100 using serum and urine protein electrophoresis/immunofixation and the serum free light chain (sFLC) assay. We evaluated whether an increase in M-spike or FLC from immediately before ASCT to day +100 post-ASCT has any prognostic impact. We retrospectively reviewed 1218 patients with MM at the Mayo Clinic who underwent their first ASCT between 2000 and 2016.

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A 24-h urine protein collection (24hUP), the gold standard for measuring albuminuria in systemic AL amyloidosis, is cumbersome and inaccurate. We retrospectively reviewed 575 patients with systemic AL amyloidosis to assess the correlation between a urine albumin to creatinine ratio (uACR) and the 24hUP. The uACR correlated strongly with 24hUP at diagnosis (Pearson's r = 0.

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The goal of therapy in AL amyloidosis is to inhibit further production of the amyloidogenic light chains, thereby allowing organ recovery and improving survival. We aimed to assess the impact of depth of hematologic response prior to ASCT on survival. We conducted a retrospective study of 128 newly diagnosed AL amyloidosis patients who received induction prior to ASCT between January 2007 and August 2017 at Mayo Clinic.

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