Publications by authors named "Mahmoud E"

Backgrounds: The pathophysiology of nephrolithiasis is complex, influenced by both environmental and genetic factors. Calcium is the most prevalent metabolite present in the stone matrix. Stimulating the basolateral calcium sensing receptor (CASR) in the renal tubules leads to an increase in claudin-14 expression, reducing paracellular calcium permeability and increasing urinary Ca excretion.

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Background: The healthcare sector faces a growing threat from the rise of highly resistant microorganisms, particularly Methicillin-resistant Staphylococcus aureus (MRSA) and multidrug-resistant Pseudomonas aeruginosa (MDR P. aeruginosa). Facing the challenge of antibiotic resistance, nanoparticles have surfaced as promising substitutes for antimicrobial therapy.

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This study aims to investigate and compare the effects of short and long-term application of low-level laser therapy on the mandibular alveolar process of osteoporotic rats. Forty adult male albino rats were included in this study. After animal grouping, the experimental group received dexamethasone (0.

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Fusobacterium nucleatum (Fn), as an intestinal pathogenic bacterium, is closely related to the occurrence, progression, and limited therapeutic efficacy of colorectal cancer (CRC). The presence of Fn within CRC communities induces an inflammatory and immunosuppressive microenvironment while promoting new vessel formation. Therefore, developing novel methods to efficiently eliminate Fn and enhance the therapeutic outcomes against Fn-associated CRC is of great significance.

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  • A case is presented involving a patient with a ruptured paramedian occipital DAVF who experienced sudden sinus bradycardia during embolization while inflating balloons in the occipital arteries.
  • The medical team managed the situation by temporarily stopping the injections and deflating the balloons, allowing for a successful third injection that completely excluded the fistula without further complications.
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  • The study investigates the effectiveness of 2D speckle tracking echocardiography (2D-STE) in identifying significant coronary artery stenosis in patients with stable angina pectoris.
  • Results indicate that patients with significant coronary artery disease (CAD) show lower global longitudinal strain (GLS) values, and 2D-STE demonstrates high sensitivity and specificity for detecting stenosis compared to standard echocardiography.
  • The findings suggest that GLS and segmental longitudinal strain (SLS) provide a more accurate assessment of coronary artery health than conventional echocardiography, which relies on subjective evaluation of wall motion.
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Fungal infection is a potential issue in citrus fruits, while essential oils from and could be better alternatives to synthetic fungicides in orange preservation. The nanoparticles produced during ultrasonication exhibited a monomodal distribution of particle sizes with a mean zeta potential and a polydispersity index mean value of 74.12 nm, -38.

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Background: Cardiovascular disease risk assessment is a key tool in primary prevention. The ADRS (Abu Dhabi Risk Study) is a retrospective cohort study aiming to develop 10-year risk prediction equations for coronary artery disease (CAD), stroke, and atherosclerotic cardiovascular disease (ASCVD), and validate international risk equations.

Methods And Results: The 8699 participants were examined in the Abu Dhabi cardiovascular screening program from 2011 to 2013 with a subsequent average follow-up of 9.

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  • This study investigates how Gestational Diabetes Mellitus (GDM) is linked to negative pregnancy outcomes, comparing two sets of diagnostic criteria: the IADPSG recommendations and higher cut-off criteria.
  • A systematic review and meta-analysis of 30 observational studies were conducted, focusing on data from 2010 to 2023, using comprehensive databases for sourcing relevant studies.
  • Results showed that GDM significantly increased the likelihood of adverse maternal outcomes like cesarean section (aOR 1.24) and pregnancy-induced hypertension (aOR 1.55), as well as neonatal outcomes like macrosomia (aOR 1.38).
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The current study offers a metal-free, direct, and successful synthesis technique for a new series of quinolinone and benzo[d][1,3]oxazine, along with an assessment of their biological activities. Heteroannulation of anthranilic acid with carbonyl-containing chemicals (aroyl pyruvate, ethyl acetoacetatete, maleic anhydride, and ethyl cyanoacetate) resulted in the desired quinolones and benzo[d][1,3]oxazines. This technique introduces a number of fundamental breakthroughs in organic synthesis, including metal-free catalysts, smart reaction conditions with column purification, and a wide functional scope.

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The resilience of tomato plants under different cultivation environments, particularly saline and non-saline conditions, was investigated by applying various treatments, including 0.5% Ascorbic Acid (AsA) and 1% Sulphur-treated Biochar (BS). The study evaluated parameters such as fruit length, diameter, yield per plant and pot, Total Soluble Solids (TSS) content, chlorophyll content, electrolyte leakage, enzyme activities (Superoxide Dismutase - SOD, Peroxidase - POD, Catalase - CAT), and nutrient content (Nitrogen - N%, Phosphorus - P%, Potassium - K%).

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To evaluate the efficacy of baricitinib compared to TNF-α Inhibitors and conventional DMARDs (cDMARDs) in patients with RA. Our study included 334 RA patients classified into 3 groups: the first receiving baricitinib, the second receiving TNF-α Inhibitors, and the third receiving cDMARDs. Patients were evaluated at baseline, week 12, and week 24 using TJC, SJC, VAS, DAS28, CDAI, and HAQ-DI.

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This study investigates the projected impact of air pollution on mortality and Disability-Adjusted Life Years (DALYs) across SAARC countries. Utilizing Time Series and Machine Learning methodologies such as Autoregressive Integrated Moving Average, Exponential Smoothing, and Neural Network, the research aims to accurately forecast the mortality and DALYs attributed to air pollution from 2020 to 2030. Statistical analyses reveal a consistent upward trend in deaths and DALYs during the forecasting period, primarily driven by Ambient Particulate Matter Pollution (APM) and Ambient Ozone Pollution (AOP).

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Background: Preventing high blood pressure and its complications requires identifying its risk factors. This study assessed predictors of hypertension and its associated complications among Emirati adults in Abu Dhabi, United Arab Emirates (UAE).

Methods: This retrospective cohort study was conducted by retrieving data from the Electronic Medical Records (EMR) of Emiratis who participated in a national cardiovascular screening program between 2011 and 2013.

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The aim is to evaluate ciprofloxacin toxicity in the liver and kidneys by assessing their functioning, histological alterations, and GFAP expression in chicks. In the acute trial, the chicks were divided into 3 groups of six. The 1st was the control.

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  • This study examined how different populations of Sporobolus ioclados (local names: "Sawri," "Drabhri," "Dhrbholi") adapt to drought stress while being cultivated in Pakistan.
  • Researchers tested the plants under various drought conditions to assess their physiological and morphological responses, noting changes in root and leaf attributes and increased proline and nitrogen levels.
  • The findings highlighted significant population diversity and adaptation mechanisms, identifying certain populations as particularly drought-tolerant, which suggests their potential for use in afforestation and climate change strategies in arid regions.
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In recent years, chalcogenide perovskites have emerged as promising candidates with favorable structural, electrical, and optical properties for photovoltaic applications. This paper explores the structural, electronic, and optical characteristics of ABSe perovskites (where A = Li, Na, K, Rb, Cs; B = Si, Ge, Sn) in their triclinic crystallographic phases using density functional theory. The stability of these materials is ensured by calculating formation energies, tolerance factors (T), and phonon dispersion.

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In recent years, the realm of astrobiology has expanded beyond the search for microbial life to encompass the intriguing possibility of plant life beyond our planet. Plant astrobiology delves into the adaptations and mechanisms that might allow Earth's flora to flourish in the harsh conditions of outer space and other celestial bodies. This review aims to shed light on the captivating field of plant astrobiology, its implications, and the challenges and opportunities it presents.

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  • The study examined the critical period of crop-weed competition (CPCWC) in green gram across different seasons, managing factors such as nutrient uptake and plant productivity.
  • Twelve different treatments tested the effects of weed interference and weed-free conditions at various growth stages.
  • Results indicated summer green gram yields were significantly higher than rainy season yields, with prolonged weed competition drastically reducing crop performance metrics.
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This study investigates the impact of air pollution on health outcomes in Middle Eastern countries, a region facing severe environmental challenges. As such, these are important in an effort to add up to policy-level as well as interventional changes that can be put in practice in the area of public health. Numeration analysis and association with health parameters was carried out by using Analytical tools such as, AIR Data, ARIMA,ANN, SVM and Exponential smoothing.

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The salinity and alkalinity of soils are two fundamental factors that limit plant growth and productivity. For that reason, a field study conducted at Sakha Agric. Res.

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In order to explore the role of topological indices for predicting physio-chemical properties of anti-HIV drugs, this research uses python program-based algorithms to compute topological indices as well as machine learning algorithms. Degree-based topological indices are calculated using Python algorithm, providing important information about the structural behavior of drugs that are essential to their anti-HIV effectiveness. Furthermore, machine learning algorithms analyze the physio-chemical properties that correspond to anti-HIV activities, making use of their ability to identify complex trends in large, convoluted datasets.

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Seasonal variations directly impact the biochemical and microbial properties of the soil, influence carbon and nutrient cycling within the soil system. Soils under tree plantation (TP) are rich in organic matter and microbial population, making them more susceptible to seasonal variation. We studied the effect of seasonal variations in soil chemical properties (pH, electrical conductivity (EC), total organic carbon (TOC), total nitrogen (TN), C/N ratio etc) and microclimate (moisture and temperature) on microbial respiration (SR), biomass, and carbon (C) utilization efficiency under 13 years old Kadamb ( Miq.

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A novel group of indolyl-1,2,4-triazole-chalcone hybrids was designed, synthesized, and assessed for their anticancer activity. The synthesized compounds exhibited significant antiproliferative activity. Compounds 9a and 9e exhibited significant cancer inhibition with GI ranging from 3.

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Metal-organic frameworks (MOFs) play a pivotal role in modern material science, offering unique properties such as flexibility, substantial pore space, distinctive structure, and large surface area. Recently, zinc-based MOFs have attracted significant attention, particularly in the biomedical arena, owing to their versatile applications in drug delivery, biosensing, and cancer imaging. However, there remains a crucial need to explore and understand the structural properties of zinc silicate-based MOFs to fully exploit their potential in various applications.

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