Publications by authors named "Mahdi N"

Objective: Hemolysis is the most severe change that occurs in stored blood and can cause severe consequences in patients after transfusion. This study examines the potential role of IgG and complement, exampled by C4, in the hemolysis of stored CPDA-1 blood under poor storage conditions in low-income countries.

Methods: The study was performed on 30 whole blood units (250 mL) drawn from convenience healthy volunteer donors with CPDA-1 anticoagulant and stored at 2-6 °C for 35 days.

View Article and Find Full Text PDF

Unmanned aerial vehicles (UAVs) require fault diagnosis for safe operation. Here, we present a protocol for UAV fault diagnosis using signal processing and artificial intelligence. We describe steps for collecting vibration-based signal data, preprocessing, and feature extraction using a 3-axis accelerometer or similar sensors.

View Article and Find Full Text PDF

Background: There is a paucity of data regarding sex-related differences on cardiac outcomes in the context of transposition of the great arteries (TGA) with a systemic right ventricle and biventricular physiology (sRV-biV). Moreover, the long-term impact of pregnancy on cardiac outcomes remains unknown.

Objectives: The purpose of this study was to identify sex-related differences and the influence of pregnancy on cardiac outcomes in TGA sRV-biV population.

View Article and Find Full Text PDF

The bromodomain and extra terminal (BET) family of bromodomain-containing proteins are important epigenetic regulators that elicit their effect through binding histone tail -acetyl lysine (KAc) post-translational modifications. Recognition of such markers has been implicated in a range of oncology and immune diseases and, as such, small-molecule inhibition of the BET family bromodomain-KAc protein-protein interaction has received significant interest as a therapeutic strategy, with several potential medicines under clinical evaluation. This work describes the structure- and property-based optimization of a ligand and lipophilic efficient pan-BET bromodomain inhibitor series to deliver candidate I-BET787 () that demonstrates efficacy in a mouse model of inflammation and suitable properties for both oral and intravenous (IV) administration.

View Article and Find Full Text PDF

Background: Fluorine-fluorodeoxyglucose (F-FDG) positron emission tomography (PET) CT imaging has been used in many inflammatory and infectious conditions to differentiate areas of increased metabolic activity. FDG uptake differs between areas of normal lung parenchyma and interstitial lung disease (ILD).

Objectives: In this study, we investigated whether FDG-PET/CT parameters were associated with a change in the quality of life (QoL) in patients with ILD over 4 years of follow-up.

View Article and Find Full Text PDF

A new, simple, and sensitive FIA-spectrophotometric method has been developed for evaluating pure amoxicillin and pharmaceutical formulations. The FIA method involves the reaction of dapsone with sodium nitrite and hydrochloric acid. Subsequently, the diazotized dapsone is coupled with amoxicillin in an alkaline medium, resulting in a stable orange dye with a maximum wavelength of 440 nm.

View Article and Find Full Text PDF

This research shows the exact detection of riboflavin (RF), dopamine (DA), and L-tryptophan (Trp) through molecularly imprinted polymer (MIP) based on the electropolymerization method. MIP was placed on the surface of the glassy carbon electrode (GCE) by electropolymerization of monomers such as catechol and para-aminophenol, in the presence of all three analytes. The introduced sensor was investigated using field emission scanning electron microscopy (FE-SEM), atomic force microscopy (AFM), Fourier-transform infrared spectroscopy (FTIR), and electrochemical methods, for example, electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and differential pulse voltammetry (DPV).

View Article and Find Full Text PDF

Introduction: The first case of novel SARS-COV-2 (COVID-19) in Pakistan was detected on 26 February 2020. Pharmacological and non-pharmacological strategies have been tried to lessen the mortality and morbidity burden. Various vaccines have been approved.

View Article and Find Full Text PDF

resides naturally in the nasal cavity of healthy individuals, including those working in restaurants, so they may be a source for spreading this bacterium to restaurant customers directly or indirectly through cooked meals. This bacterium has several virulence factors enabling it to cause many diseases in different parts of the body. It has also the capability to resist conventional antibiotics including methicillin.

View Article and Find Full Text PDF

Background: Preliminary data suggest that the prevalence of pulmonary hypertension (PH) in patients with COVID-19 is around 13%, but its prognostic role remains unclear. Approximately 3% of patients develop chronic thrombo-embolic pulmonary hypertension (CTEPH) following diagnosis of acute pulmonary embolism (PE). It is recommended that patients are screened for CTEPH if they remain symptomatic 3 months following diagnosis of PE.

View Article and Find Full Text PDF

Background: Pakistan has vaccinated over 122 million people. The two vaccines in widespread use are inactivated (BBIBP-CorV & Sinovac) and mRNA forms (BNT162b2 & mRNA-1273). The primary aim of this study was to compare these two forms of vaccines against unvaccinated individuals collectively and then to see which one is more efficacious.

View Article and Find Full Text PDF

Background And Aim: To develop an environmentally friendly alternative to mosquito larvicides for vegetables, leaf extracts of , , , , , and were prepared. This study aimed to determine the biological efficacy of several leaf extracts on the mortality of mosquito and the inhibition of egg hatching.

Materials And Methods: Extraction was performed in an organic solvent (methanol) using a Soxhlet extractor.

View Article and Find Full Text PDF
Article Synopsis
  • This study examined how low doses of caffeine and conditioning activities impact the performance of young taekwondo athletes, using a controlled experimental design with both caffeine and placebo.
  • Results showed that combining caffeine with conditioning activities led to significantly improved performance in agility and kick tests compared to other conditions.
  • Additionally, males generally performed better than females across multiple measured outcomes, highlighting the potential benefits of caffeine and conditioning as effective strategies for enhancing athletic performance.
View Article and Find Full Text PDF

Background: There is an emerging understanding that coronavirus disease 2019 (COVID-19) is associated with increased incidence of pneumomediastinum (PTM). We aimed to determine its incidence among patients hospitalised with COVID-19 in the UK and describe factors associated with outcome.

Methods: A structured survey of PTM and its incidence was conducted from September 2020 to February 2021.

View Article and Find Full Text PDF

The main aim of this study was to assess the efficacy of advanced respiratory support (ARS) for acute respiratory failure in do-not-attempt cardiopulmonary resuscitation order (DNACPR) COVID-19 patients. In this single-center study, the impact of different types of ARS modality, PaO/FiO (PF) ratio, clinical frailty score (CFS) and 4C score on mortality was evaluated. There was no significant difference in age, type of ARS modality, PF ratio and 4C scores between those who died and those who survived.

View Article and Find Full Text PDF

COVID-19 is a known risk factor for pulmonary embolism (PE). In this retrospective, multicenter study, we aimed to determine an optimal D-dimer cutoff to predict PE in hospitalized patients with COVID-19. A total of 193 patients underwent computerized tomographic pulmonary angiography imaging and were classified into PE positive and negative groups.

View Article and Find Full Text PDF

Introduction: Risk factors of adverse outcomes in COVID-19 are defined but stratification of mortality using non-laboratory measured scores, particularly at the time of prehospital SARS-CoV-2 testing, is lacking.

Methods: Multivariate regression with bootstrapping was used to identify independent mortality predictors in patients admitted to an acute hospital with a confirmed diagnosis of COVID-19. Predictions were externally validated in a large random sample of the ISARIC cohort (N=14 231) and a smaller cohort from Aintree (N=290).

View Article and Find Full Text PDF

Objectives:  The aim of this study was to compare the effects of two margin designs (shoulderless and slight chamfer) with two occlusal thicknesses on fracture resistance and failure mode of the monolithic zirconia crowns.

Materials And Methods:  Forty nickel-chromium dies were duplicated from the previous two prepared teeth using a three-dimensional optical scanner. Nickel-chromium supporting dies were divided into two main groups ( = 20) according to the type of margin design: group A, slight chamfer margin design and group B, shoulderless margin design.

View Article and Find Full Text PDF

Background: Velopharyngeal insufficiency is the inability to close the velopharyngeal port during speech and swallowing, leading to hypernasal speech and food regurgitation.

Objective: This study aimed to explore the aetiological factors contributing to the development of velopharyngeal insufficiency in a non-cleft paediatric population, especially following adenoidectomy.

Methods: A retrospective case review was conducted of all children without a known cleft palate, born between 2000 and 2013, who were referred to a tertiary cleft centre with possible velopharyngeal insufficiency.

View Article and Find Full Text PDF

Polyethersulfone (PES) is a polymeric permeable material used in ultrafiltration (UF) membranes due to its high thermomechanical and chemical stability. The hydrophobic nature of PES membranes renders them prone to fouling and restricts the practical applications of PES in the fabrication of water treatment membranes. The present study demonstrates a non-solvent-induced phase separation (NIPS) approach to modifying PES membranes with different concentrations of discrete TiO nanotubes (TNTs).

View Article and Find Full Text PDF

Objective: Surgical site infection (SSI) is a serious complication after coronary artery bypass grafting (CABG). This study was performed to evaluate evidence-based practice and structured problem-solving to reduce SSI after CABG.

Methods: An infection control strategy including supervised chlorhexidine gluconate (CHG) showers was implemented from January 2017 to March 2018 for 119 patients undergoing CABG.

View Article and Find Full Text PDF

The complexity of immune responses limits the usefulness of univariate methods in answering complex immunology questions. To demonstrate the utility of a multivariate approach, we employ such approach to compare T cells of African green monkeys (AGMs) and rhesus macaques (RMs). Among the most prominent distinguishing features we found were lower CD3 and higher CD28 surface expression in AGMs compared to RMs.

View Article and Find Full Text PDF

Modification of carbon nitride based polymeric 2D materials for tailoring their optical, electronic and chemical properties for various applications has gained significant interest. The present report demonstrates the synthesis of a novel modified carbon nitride framework with a remarkable 3:5 C:N stoichiometry (CN) and an electronic bandgap of 1.76 eV, by thermal deammoniation of the melem hydrazine precursor.

View Article and Find Full Text PDF