Publications by authors named "Mohamed A Saleh"

The success of CO mineralization as a potential solution for reducing carbon emissions hinges on understanding chemical interactions between basaltic minerals and CO-charged fluids. This study provides a detailed analysis of olivine dissolution in CO-water mixtures at 90 and 150 °C, 2-9 MPa, and for 8 and 24 h, in both water- and CO-dominant conditions. By using olivine crystal sections instead of powders, surface agitation is prevented, closing the gap between laboratory studies and natural settings.

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  • - Dapagliflozin (DAPA) is an SGLT2 inhibitor with beneficial effects on heart cells, blood vessels, and insulin-producing beta cells, reducing hypertrophy and inflammation while improving cellular stress response.
  • - The study found that DAPA activates the AKT pathway, decreases reactive oxygen species (ROS) production, and enhances glucose metabolism, contributing to its cardioprotective effects.
  • - In aortic endothelial cells, DAPA showed anti-inflammatory effects and promoted better vascular function by regulating key signaling pathways and enhancing insulin function in beta cells, which could help manage diabetes.
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Introduction: The renin-angiotensin-aldosterone system (RAAS) plays a pivotal role in regulating blood pressure (BP), with dysregulation of RAAS resulting in hypertension and potentially heart failure (HF), myocardial infarction (MI), cardio-renal syndrome, and stroke. RAAS inhibitors, such as angiotensin-converting enzyme inhibitors (ACEis) and angiotensin receptor blockers (ARBs), have advantages beyond BP control. However, differences between these two drug classes need to be considered when choosing a therapy for preventing cardiovascular events.

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Thermal and mechanical properties play a key role in optimizing the performance of nanoelectronic devices. In this study, the lattice thermal conductivity (κL) and elastic constants of Si nanosheets at different sheet thicknesses were determined using recently developed machine learning interatomic potentials (MLIPs). A Si nanosheet with a minimum thickness of 10 atomic layers was used for model training to predict the properties of sheets with greater thicknesses.

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  • * The IGF family includes hormones (IGF-I, IGF-II, and insulin), receptors, and binding proteins, which have been linked to cancer risk and can act as mitogens promoting tumor growth.
  • * Despite controversies in research related to IGF expression and prostate cancer due to tumor variability and methodological issues, understanding IGF signaling is crucial for developing effective treatment strategies.
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ST-elevation myocardial infarction (STEMI) patients suffer higher mortality and adverse outcomes linked to endothelial dysfunction (ED). 43 patients were randomized to pentoxifylline (PTX) 400 mg thrice daily (n = 22) or placebo (n = 21). Soluble vascular cell adhesion molecule-1, malondialdehyde, interleukin-1 (IL-1), interleukin-6 (IL-6), high-sensitivity C-reactive protein (hs-CRP) and tumor necrosis factor-α (TNF-α) were assessed at baseline and 2 months.

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Dysregulated autophagy/mitophagy is one of the major causes of cardiac injury in ischemic conditions. Glycogen synthase kinase-3alpha (GSK-3α) has been shown to play a crucial role in the pathophysiology of cardiac diseases. However, the precise role of GSK-3α in cardiac mitophagy remains unknown.

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  • * A study screened 70 natural compounds and identified Psoralidin and Rosmarinic acid as promising GSK-3 inhibitors, each showing stronger effects on their respective isoforms (Psoralidin for GSK-3α and Rosmarinic acid for GSK-3β).
  • * The effectiveness of these compounds was confirmed through in silico docking and biochemical assays, but further research is needed to explore their potential benefits in treating cardiovascular, metabolic, and neurological conditions. *
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Background And Aims: The protein phosphatase 1 regulatory inhibitor subunit 1A (PPP1R1A) has been linked with insulin secretion and diabetes mellitus. Yet, its full significance in pancreatic β-cell function remains unclear. This study aims to elucidate the role of the PPP1R1A gene in β-cell biology using human pancreatic islets and rat INS-1 (832/13) cells.

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Sodium-glucose cotransporter 2 (SGLT2) inhibitors have attracted significant attention for their broader therapeutic impact beyond simply controlling blood sugar levels, particularly in their ability to influence inflammatory pathways. This review delves into the anti-inflammatory properties of SGLT2 inhibitors, with a specific focus on canagliflozin, empagliflozin, and dapagliflozin. One of the key mechanisms through which SGLT2 inhibitors exert their anti-inflammatory effects is by activating AMP-activated protein kinase (AMPK), a crucial regulator of both cellular energy balance and inflammation.

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Hypoxia-inducible factor-1 (HIF-1) is a key regulator for balancing oxygen in the cells. It is a transcription factor that regulates the expression of target genes involved in oxygen homeostasis in response to hypoxia. Recently, research has demonstrated the multiple roles of HIF-1 in the pathophysiology of various diseases, including cancer.

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Microgravity, in space travel and prolonged bed rest conditions, induces cardiovascular deconditioning along with skeletal muscle mass loss and weakness. The findings of microgravity research may also aid in the understanding and treatment of human health conditions on Earth such as muscle atrophy, and cardiovascular diseases. Due to the paucity of biomarkers and the unknown underlying mechanisms of cardiovascular and skeletal muscle deconditioning in these environments, there are insufficient diagnostic and preventative measures.

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Aim: To investigate the association between beta1-adrenergic receptor () polymorphisms and response to bisoprolol treatment in beta-blocker naive patients with acute coronary syndrome (ACS).

Patients & Methods: Seventy-seven patients received bisoprolol for four weeks. Blood pressure and heart rate were measured at baseline and during treatment.

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Reperfusion after acute myocardial infarction further exaggerates cardiac injury and adverse remodeling. Irrespective of cardiac cell types, loss of specifically the α isoform of the protein kinase GSK-3 is protective in chronic cardiac diseases. However, the role of GSK-3α in clinically relevant ischemia/reperfusion (I/R)-induced cardiac injury is unknown.

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is a perennial flowering plant of the Apocynaceae family, traditionally used in medicine to treat various ailments. Recent investigations have revealed its potential therapeutic activities such as anti-inflammatory, gastroprotective, analgesic, anti-obesity, and anti-diabetic properties. RP-HPLC qualitatively and quantitatively evaluated the phenolic acids and flavonoids in the ethanolic extract at two different wavelengths, 280 and 330 nm.

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Background: Doxorubicin (DOX) is widely used to treat a variety of malignancies in both adults and children, including those of the bladder, breast, stomach, and ovaries. Despite this, it has been reported to cause hepatotoxicity. The recent discovery of bone marrow-derived mesenchymal stem cells' (BMSCs) therapeutic effects in the context of liver diseases suggests that their administration plays a part in the mitigation and rehabilitation of drug-induced toxicities.

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Quercetin (QtN) displays low systemic bioavailability caused by poor water solubility and instability. Consequently, it exerts limited anticancer action in vivo. One solution to increase the anticancer efficacy of QtN is the use of appropriate functionalized nanocarriers that preferentially target and deliver the drug to the tumor location.

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Endothelin-1 (ET-1) contributes to the development of kidney diseases. However, the underlying molecular mechanism is largely undefined. Here we sought to investigate the potential role of ET-1 receptors, ET and ET in the regulation of increased glomerular permeability and underlying signaling pathways post-ET-1 infusion.

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Ischemia-induced metabolic remodeling plays a critical role in the pathogenesis of adverse cardiac remodeling and heart failure however, the underlying molecular mechanism is largely unknown. Here, we assess the potential roles of nicotinamide riboside kinase-2 (NRK-2), a muscle-specific protein, in ischemia-induced metabolic switch and heart failure through employing transcriptomic and metabolomic approaches in ischemic NRK-2 knockout mice. The investigations revealed NRK-2 as a novel regulator of several metabolic processes in the ischemic heart.

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Objectives: This study aims to evaluate the pharmacological role of indigo extract in accelerating the wound healing in a rat model.

Methods: Female Sprague-Dawley rats were anesthetized with ketamine (30 mg/kg, i.p.

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Topoisomerase II (TOP-2) is a promising molecular target for cancer therapy. Numerous antibiotics could interact with biologically relevant macromolecules and provoke antitumor potential. Herein, molecular docking studies were used to investigate the binding interactions of 138 antibiotics against the human topoisomerase II-DNA complex.

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Aims: Oxidative stress and inflammation have been linked to doxorubicin (DOX)-induced cardiotoxicity, while the exact molecular processes are currently under investigation. The goal of this study is to investigate Metformin's preventive role in cardiotoxicity induced by DOX.

Materials And Methods: Male albino mice were divided randomly into 4 groups.

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In this research, two novel series of dibenzo[]azepines (14 candidates) were designed and synthesised based on the rigidification principle and following the reported doxorubicin's pharmacophoric features. The anti-proliferative activity was evaluated at the NCI against a panel of 60 cancer cell lines. Further, the promising candidates () were evaluated for their ability to inhibit topoisomerase II, where was noticed to be the most active congener.

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Telomerase is an outstanding biological target for cancer treatment. BIBR1532 is a non-nucleoside selective telomerase inhibitor; however, it experiences ineligible pharmacokinetics. Herein, we aimed to design new BIBR1532-based analogues as promising telomerase inhibitors.

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Article Synopsis
  • * Molecular dynamics simulations and quantum mechanical studies supported the findings, while in vitro tests revealed that ticagrelor had the strongest inhibitory effect with an IC value of 5.60 µM and a safety index of 25.33.
  • * Fondaparinux sodium and dabigatran also showed notable inhibitory potential, with IC values of 2.36 µM for fondaparinux and 10.59 µ
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