Publications by authors named "Muhammad A Zahid"

Potato (Solanum tuberosum L.) yield is highly sensitive to drought stress, yet robust phenotyping methods for drought tolerance remain scarce. To address this challenge, we present a rapid, high-throughput hydroponic assay designed as an efficient pre-screening tool for evaluating potato cultivars and CRISPR-edited lines.

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Objective: The primary objective is to identify how often do adult patients, who undergo elective open-heart surgeries are fast track extubated. Secondary objectives are to identify the causes of delayed extubation and to quantify the frequency of re-intubation and hospital stay in fast-track patients.

Study Design: Retrospective cross-sectional study.

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Background and objective Orbital cellulitis is mostly associated with sinusitis. The pediatric cases have a peculiar clinical presentation and variability with respect to different factors like season, type of sinus involved, and number of sinuses involved. In this study, we aimed to analyze the trends of sinusitis-associated orbital cellulitis in pediatric patients, which, we believe, would help physicians in managing these patients.

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Background: Despite the accumulating evidence from cellular and animal studies, the role of circulating Sestrin2, a stress-inducible antioxidant protein, in human cardiometabolic health remains largely unexplored. Hence, the current study aimed to investigate the association between circulating Sestrin2 and cardiometabolic risk factors in healthy and diabetic individuals.

Methods: This cross-sectional study leveraging data and plasma samples from the Qatar Biobank investigated the relationship between plasma Sestrin2 levels and various cardiometabolic indices in 326 healthy and 518 diabetic subjects.

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Introduction: The escalating prevalence of diabetes and non-alcoholic fatty liver disease (NAFLD) has intensified the search for effective therapeutic interventions. The current study investigates the potential of ondansetron, a Food and Drug Administration (FDA)-approved drug for conditions like nausea and vomiting, as a novel treatment option for these metabolic disorders.

Methods: A multifaceted approach, encompassing computational analyses, in vitro enzyme inhibition assays, and in vivo experiments in a high-fat diet (HFD)-induced disease model in rats were employed.

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Potato ( L.) is an important global crop, but its production is severely impacted by late blight, caused by the pathogen . The economic burden of this disease is significant, and current control strategies rely mainly on fungicides, which face increasing regulatory and environmental constraints.

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Introduction The orbital tissues of the eye can be affected by infections, a serious clinical illness that can have potentially fatal consequences. The study aimed to identify the demographic data, the categories of orbital infections based on Chandler's classification, and the underlying causes of orbital infections to ascertain the characteristics of patients admitted with orbital infections. We also looked at the management practices and their results.

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Cardiovascular diseases (CVD) are a global health concern that accounts for a large share of annual mortality. Endothelial dysfunction is the main underlying factor that eventually leads to cardiovascular events. Recent studies have underscored the critical function of Protein Tyrosine Phosphatase 1B (PTP1B) in the onset of endothelial dysfunction, chiefly through its involvement in metabolic diseases such as diabetes, obesity, and leptin resistance.

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Sestrin2 (SESN2) is a stress-inducible protein known for its cytoprotective functions, but its role in diabetic vascular complications remains unclear. This study investigated the impact of SESN2 on methylglyoxal (MGO)-induced endothelial-mesenchymal transition (EndMT). Human endothelial cells were transfected with SESN2 siRNA duplexes to silence SESN2 expression, followed by MGO treatment.

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This study examines the association between serum Sestrin2 (SESN2) levels and cardiovascular disease (CVD) risk factors in healthy and diabetic adults, using data from the Qatar Biobank (QBB). A total of 844 participants were included, with 518 in the diabetic cohort and 326 in the healthy cohort. Clinical characteristics, cardiometabolic markers, and SESN2 levels were measured, and binomial logistic regression analyses were conducted to assess the associations between SESN2 and various health indices.

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Article Synopsis
  • The study investigates the incidence of blood transfusions in patients undergoing coronary artery bypass grafting (CABG) using acute normovolemic haemodilution (ANH) over six months.
  • In a cohort of 50 patients, 44% required allogeneic blood transfusions perioperatively, with notable intraoperative and ICU transfusion rates associated with lower haemoglobin levels during surgery and longer surgical times.
  • The findings suggest that managing intraoperative conditions effectively may help reduce the need for blood transfusions and minimize potential postoperative complications.
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The RAF1-RAP1A interaction activates the MAPK/ERK pathway which is very crucial in the carcinogenesis process. This protein complex influences tumor formation, proliferation, and metastasis. Understanding aberrant interactions driven by clinical mutations is vital for targeted therapies.

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Article Synopsis
  • The study aimed to evaluate how post-protamine neutralisation activated clotting time (ACT) influences outcomes in cardiac surgery, like chest drain output, blood transfusion needs, and ICU stay.
  • Conducted at The Aga Khan University Hospital from February to August 2023, it involved analyzing data from 101 elective cardiac surgery patients, split into two groups based on their ACT values.
  • Results showed no significant differences in postoperative outcomes or transfusion needs between the two groups, indicating that maintaining ACT close to baseline might be beneficial without requiring aggressive treatment.
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Ocular myasthenia gravis (OMG) is a neuromuscular disease characterized by the production of autoantibodies against post-synaptic proteins at the neuromuscular junction (NMJ). An 18-year-old male who had symptoms of drooping eyelids and double vision was diagnosed with ocular myasthenia gravis on investigations and examinations. Treatment was initiated with a tablet of pyridostigmine 60 mg twice daily per oral for two weeks, followed by three times daily for four weeks.

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Background: MicroRNAs (miRNAs) participate in diverse cellular changes following acute ischemic stroke (AIS). Circulating miRNAs, stabilized and delivered to target cells via extracellular vesicles (EVs), are potential biomarkers to facilitate diagnosis, prognosis, and therapeutic modulation. We aimed to identify distinctive expression patterns of circulating EV-miRNAs in AIS patients.

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Background Since bilateral nasal packing entails nasal and airway obstruction, this practice consequently leads to oral breathing. The resulting hypoxemia may then negatively impact vital signs, including blood pressure (BP), blood oxygen saturation (SpO2), and heart rate (HR). These systemic effects have a detrimental effect on patients.

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Francisella tularensis can cause severe disease in humans via the respiratory or cutaneous routes and a case fatality ratio of up to 10 % is reported due to lack of proper antibiotic treatment, while F. novicida causes disease in severely immunocompromised individuals. Efforts are needed to develop effective vaccine candidates against Francisella species.

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Objective The objective of this study was to compare K1, K2, Kmax, and pachymetry values from Pentacam and Galilei scans of corneal topography in order to assess their correlation and interchangeability in clinical practice. Methodology A total of 34 patients (68 eyes) were enrolled in the study. Corneal topography was performed using Pentacam and Galilei devices on the same day.

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Potato is the third most important food crop, but cultivation is challenged by numerous diseases and adverse abiotic conditions. To combat diseases, frequent fungicide application is common. Knocking out susceptibility genes by genome editing could be a durable option to increase resistance.

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Continued climate change impose multiple stressors on crops, including pathogens, salt, and drought, severely impacting agricultural productivity. Innovative solutions are necessary to develop resilient crops. Here, using quantitative potato proteomics, we identify Parakletos, a thylakoid protein that contributes to disease susceptibility.

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This study conducted in the Kyungpook National University Eco-friendly Agriculture Research Centre between 2022 and 2023 investigates the environmental implications of fence-type solar photovoltaic (PV) systems in diverse agricultural settings. Despite the increasing adoption of solar energy for climate change mitigation, there is a noticeable gap in research regarding the potential environmental impact of these specific PV systems. Focusing on heavy metal concentrations, including Cadmium (Cd), Copper (Cu), Arsenic (As), Mercury (Hg), Lead (Pb), Hexavalent Chromium (Cr), Zinc (Zn), and Nickel (Ni), across distinct fields, the study reveals significant fluctuations.

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Leucine is the native known ligand of Sestrin2 (Sesn2) and its interaction with Sesn2 is particularly important, as it influences the activity of mTOR in aging and its associated pathologies. It is important to find out how leucine interacts with Sesn2 and how mutations in the binding pocket of leucine affect the binding of leucine. Therefore, this study was committed to investigating the impact of non-synonymous mutations by incorporating a broad spectrum of simulation techniques, from molecular dynamics to free energy calculations.

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This narrative review examines the role of vitamin D as a biomarker in ear disorders, including benign paroxysmal positional vertigo (BPPV), otitis media, bell's palsy, Meniere's disease, and hearing loss. PubMed, The Cochrane Library, and Google Scholar were utilized to conduct a comprehensive literature search, and findings were combined from studies from 2014 to 2024. As highlighted in this review, there is a consistent association between vitamin D deficiency and an increased risk and recurrence of disease especially in BPPV and otitis media.

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Introduction: Diabetes mellitus (DM) is recognized as one of the oldest chronic diseases and has become a significant public health issue, necessitating innovative therapeutic strategies to enhance patient outcomes. Traditional treatments have provided limited success, highlighting the need for novel approaches in managing this complex disease.

Methods: In our study, we employed graph signature-based methodologies in conjunction with molecular simulation and free energy calculations.

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Article Synopsis
  • The study focuses on improving chronic wound healing, particularly in patients with diabetes, by investigating matrix metalloproteinases and their selective inhibitors as potential treatments.
  • Six compounds from Roxb were analyzed using docking studies with Autodock Vina, targeting human MMP 2 and MMP 9, and were visually assessed with Discovery Studio and Pymol.
  • Results showed that most compounds adhered to Lipinski's rule for drug-like properties, exhibited strong binding energies with the target proteins, and demonstrated promising bioactivity without skin irritancy, indicating potential for therapeutic use in wound healing.
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