Publications by authors named "Ali Al-Qarni"

Importance: Sepsis screening is recommended among hospitalized patients but is supported by limited evidence of effectiveness.

Objective: To evaluate the effect of electronic sepsis screening, compared with no screening, on mortality among hospitalized ward patients.

Design, Setting, And Participants: In a stepped-wedge, cluster randomized trial at 5 hospitals in Saudi Arabia, 45 wards (clusters) were randomized into 9 sequences, 5 wards each, to have sepsis screening implemented at 2-month periods.

View Article and Find Full Text PDF

An electrochemical sensing approach was developed for the detection of the agricultural antibiotic drug kasugamycin. The method involves the construction of an electrochemical sensor comprising molecularly imprinted polymers (MIPs) embedded within a carbon paste (CP) matrix. The MIPs are designed to have imprinted sites that match the size and geometry of the Cu(II)-kasugamycin coordinated complex.

View Article and Find Full Text PDF

Type 2 diabetes mellitus (T2DM) and cancer share common risk factors including obesity, inflammation, hyperglycemia, and hyperinsulinemia. High insulin levels activate the PI3K/Akt/mTOR signaling pathway promoting cancer cell growth, survival, proliferation, metastasis, and anti-apoptosis. The inhibition of the PI3K/Akt/mTOR signaling pathway for cancer remains a promising therapy; however, drug resistance poses a major problem in clinical settings resulting in limited efficacy of agents; thus, combination treatments with therapeutic inhibitors may solve the resistance to such agents.

View Article and Find Full Text PDF

Low Earth Orbit (LEO) has emerged as a unique environment for evaluating altered stem cell properties in microgravity. LEO has become increasingly accessible for research and development due to progress in private spaceflight. Axiom Mission 2 (Ax-2) was launched as the second all-private astronaut mission to the International Space Station (ISS).

View Article and Find Full Text PDF

Background: The term "cellulitis" is frequently used to describe a non-necrotizing inflammation of the skin and subcutaneous tissues that is typically caused by an acute infection and does not affect the muscles or fascia. Warmth, erythema, tenderness, swelling, and localized pain are the hallmarks of cellulitis. Life-threatening and debilitating outcomes from cellulitis include necrotizing fasciitis, necrotizing hypodermitis, abscess formation, septic shock, and, in extreme cases, death.

View Article and Find Full Text PDF

Background: SARS-Co-V2 infection can induce ER stress-associated activation of unfolded protein response (UPR) in host cells, which may contribute to the pathogenesis of COVID-19. To understand the complex interplay between SARS-Co-V2 infection and UPR signaling, we examined the effects of acute pre-existing ER stress on SARS-Co-V2 infectivity.

Methods: Huh-7 cells were treated with Tunicamycin (TUN) and Thapsigargin (THA) prior to SARS-CoV-2pp transduction (48 h p.

View Article and Find Full Text PDF

Background and objective Even though obesity is a major global health concern, few studies in the literature have discussed obesity in the workplace. In light of this, we aimed to explore obesity in the workplace and its contributing factors. Methodology An online survey was distributed via official work emails.

View Article and Find Full Text PDF
Article Synopsis
  • A new composite material combining aluminum and nitrogen co-doped carbon dots (Al-N@CQDs) with glutathione-capped copper nanoclusters (GSH@CuNCs) was developed for detecting pyrophosphate anion (PO) using a ratiometric approach.
  • The composite exhibited dual-emission signals due to aggregation-induced emission (AIE) and fluorescence resonance energy transfer (FRET), allowing effective measurement of PO concentrations.
  • The detection range of the system was from 0.035 to 160 µM, with a remarkable limit of detection at 0.012 µM, and it was successfully tested on real samples like water, serum, and urine.
View Article and Find Full Text PDF

Context: Bariatric surgery has been shown to be effective in inducing complete remission of type 2 diabetes in adults with obesity. However, its efficacy in achieving complete diabetes remission remains variable and difficult to predict before surgery.

Objective: We aimed to characterize bariatric surgery-induced transcriptome changes associated with diabetes remission and the predictive role of the baseline transcriptome.

View Article and Find Full Text PDF

We have successfully created a dual-modal probe, labeled as of iron(ii)-ortho-phenanthroline/N, S@g-CDs, which combines both fluorometric and colorimetric techniques for the accurate and sensitive detection of hypochlorite (ClO). The mechanism behind this probe involves the fluorescence quenching interaction between nitrogen and sulfur co-doped green emissive carbon dots (N, S@g-CDs) and the iron(ii)-ortho-phenanthroline chelate, utilizing both the inner filter effect and redox processes. As the concentration of ClO increases, the iron(ii) undergo oxidation to iron(iii) as follows: Fe(ii) + 2HClO = Fe(iii) + ClO + HO, leading to the restoration of N, S@g-CDs fluorescence.

View Article and Find Full Text PDF

Background: Morning Report (MR) is a ubiquitous traditional educational activity in internal medicine residency training. It is under-researched; hence, this study was conducted. It aimed to examine the practice of MR by internal medicine residents, their motivation to engage with it, and their perception of its contribution to education.

View Article and Find Full Text PDF

Background Breast cancer is the most common of all female cancers worldwide. A large percentage are diagnosed at a late stage, which can be related to awareness and knowledge deficiency. We aimed to assess the level of knowledge of and attitude to breast cancer and breast self-examination in Jeddah, Saudi Arabia.

View Article and Find Full Text PDF

Objective: To investigate the correlation between dental calculus and kidney stones, and to identify the risk factors associated with the presence of these conditions.

Methods: This study was carried out at the medical city, King Saud University, Riyadh, Saudi Arabia between 2020 and 2021. The study included 141 participants (70 with kidney stones and 71 with controls).

View Article and Find Full Text PDF

This prospective quasi-experimental study from the NASAM (National Approach to Standardize and Improve Mechanical Ventilation) collaborative assessed the impact of evidence-based practices including subglottic suctioning, daily assessment for spontaneous awakening trial (SAT), spontaneous breathing trial (SBT), head of bed elevation, and avoidance of neuromuscular blockers unless otherwise indicated. The study outcomes included VAE (primary) and intensive care unit (ICU) mortality. Changes in daily care process measures and outcomes were evaluated using repeated measures mixed modeling.

View Article and Find Full Text PDF

COVID-19 infection can spread in the host body without any adequate immune response. Zinc is an essential trace element with strong immunoregulatory and antiviral properties and its deficiency might lead to inflammation and oxidative stress. The aim of the current study was to determine the association of serum zinc and inflammatory markers with the severity of COVID-19 infection.

View Article and Find Full Text PDF

Plasma lipoproteins exist as several subpopulations with distinct particle number and size that are not fully reflected in the conventional lipid panel. In this study, we sought to quantify lipoprotein subpopulations in patients with type 2 diabetes mellitus (T2DM) to determine whether specific lipoprotein subpopulations are associated with insulin resistance and inflammation markers. The study included 57 patients with T2DM (age, 61.

View Article and Find Full Text PDF

Excess plasma lipid levels are a risk factor for various cardiometabolic disorders. Studies have shown that improving dyslipidemia lowers the progression of these disorders. In this study, we investigated the role of ATP-binding cassette transporter C10 (ABCC10) in regulating lipid metabolism.

View Article and Find Full Text PDF

Saturated free fatty acids (FFAs) such as palmitate in the circulation are known to cause endoplasmic reticulum (ER) stress and insulin resistance in peripheral tissues. In addition to protein kinase B (AKT) signaling, extracellular signal-regulated kinase (ERK) has been implicated in the development of insulin resistance. However, there are conflicting data regarding role of ERK signaling in ER stress-induced insulin resistance.

View Article and Find Full Text PDF

Introduction: and importance: An uncommon condition is congenital unilateral agenesis of the internal carotid artery (ICA). Most instances are asymptomatic due to adequate collateral circulation via the circle of Willis, but individuals might potentially manifest (or show) ischemic or aneurysmal dilatation hemorrhagic cerebrovascular lesions. The bony carotid canal must be absent from distinguishing this abnormality from chronic ICA blockage.

View Article and Find Full Text PDF

Lipid rafts in cell plasma membranes play a critical role in the life cycle of many viruses. However, the involvement of membrane cholesterol-rich lipid rafts in the entry of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) into target cells is not well known. In this study, we investigated whether the presence of cholesterol-rich microdomains is required for the entry of SARS-CoV-2 into host cells.

View Article and Find Full Text PDF

Objective: The study aimed to evaluate the novel coronavirus disease 2019 (COVID-19) vaccination acceptance and reluctance among staff working in Saudi healthcare facilities.

Methods: A cross-sectional study was conducted during April - May 2021, among healthcare workers in five public hospitals under the National Guards Health Association located in Alahsa, Dammam, Jeddah, Madinah, and Riyadh. The study used a questionnaire in English language, which was distributed through official email communication among healthcare staff currently working at study venues.

View Article and Find Full Text PDF

Purpose: Primary hyperparathyroidism (PHPT) is a common cause of hypercalcemia and remains understudied within the Arabian population. The present study, the largest of its kind within the Gulf Cooperation Council (GCC) countries, aims to determine the demographics and clinical presentation of PHPT in Saudi Arabia.

Methods: In this multi-center retrospective study involving three tertiary hospitals in different geographic locations of Saudi Arabia namely, Riyadh, Al Ahsa and Jeddah, a total of 205 out of 243 confirmed PHPT cases aged 16 to 93 years old were included (N = 96 from Riyadh; N = 59 from Al Ahsa and N = 50 from Jeddah).

View Article and Find Full Text PDF

Sphingolipids are biomolecules with diverse physiological functions in signaling as well as plasma membrane structure. They are associated with either cellular membranes or plasma lipoproteins and any changes in their levels may contribute to certain metabolic diseases. Sphingolipids are evenly distributed in lipoproteins and may be used as prognostic and diagnostic markers.

View Article and Find Full Text PDF

Background: Although obesity and T2DM comorbidity is too frequent, the molecular basis of diabetic obesity is largely unexplained and barely investigated.

Materials: Cross-sectional studies were conducted in Kingdom of Saudi Arabia (KSA) in 2013 and Kuwait in 2019. Fasting blood samples were obtained from a total of 216 T2DM patients (104 from KSA) and 193 nondiabetic subjects (93 from KSA) after their consents.

View Article and Find Full Text PDF

Unlabelled: Type 2 diabetes (T2D) is associated with obesity whereas loss of weight is a feature of the disease; however, the two states are not mutually exclusive. Obesity is linked with changes in hormonal activity and overall body metabolism.

Materials And Methods: In this study, 408 T2D patients were recruited in three distinct studies conducted in Bahrain, Saudi Arabia, and Kuwait in three different intervals between 2001 and 2019.

View Article and Find Full Text PDF