Publications by authors named "Mahmoud B"

Class III malocclusion is one of the most challenging malocclusions in orthodontics. Its nature and multifactorial etiology should be taken into consideration, especially in growing and adolescent patients. Many treatment modalities have been proposed.

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  • The study identified sixteen compounds from the ethyl acetate extract of seeds related to a specific species and evaluated the wound-healing effects of a combination of BMMSCs and this extract in immunocompromised rats.
  • The combination therapy was found to reduce oxidative stress, lower pro-inflammatory cytokines, and inhibit NF-KB activation after 16 days.
  • Key genes linked to wound healing were identified, with pathways indicating positive effects on cell migration and locomotion, highlighting the potential of this approach in regenerative medicine, though further safety tests and clinical trials are needed.
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Background:  Understanding the attributes of vertical patterns is essential for delivering optimal orthodontic care. Cone-beam computed tomography (CBCT) represents a valuable resource for assessing the buccolingual inclination of the teeth. The present research delves into examining the buccolingual inclination of premolars in nongrowing individuals exhibiting diverse vertical facial patterns.

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Offspring sex ratios in avian species are of significant scientific interest, with implications for evolutionary biology and poultry production. This study investigated sex ratios in Japanese quail (Coturnix japonica), a valuable model for other poultry species due to its rapid generation interval. The study examined the impact of selection over generations, age at first egg (AFE), and body weight at AFE (BW) on offspring sex ratios.

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  • - The study developed a new device for preparing autologous skin cell suspension (ASCS) containing melanocytes to treat stable vitiligo, which is often difficult to repigment using conventional methods.
  • - In a trial involving 25 subjects, the ASCS treatment showed significant effectiveness, with 36% of lesions achieving at least 80% repigmentation after 24 weeks, compared to none in the control group.
  • - The results suggest that ASCS could be a promising treatment for stable vitiligo, potentially enhancing patients' quality of life, although the small sample size limits deeper analysis.
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  • Understanding vertical facial patterns is essential for effective orthodontic treatment, and cone beam computed tomography (CBCT) is a useful tool for analyzing buccolingual inclinations.
  • The study involved 66 adult patients with skeletal class II division I relationships, categorized into three groups based on facial pattern: normodivergent, hypodivergent, and hyperdivergent.
  • Results showed significant differences in molar inclinations for hypodivergent patients compared to the other groups, highlighting that normodivergent and hyperdivergent individuals have similar buccolingual inclinations.
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How patient and tumor factors influence clearance margins and the number of Mohs Micrographic Surgery (MMS) stages when treating basal cell carcinoma (BCC) remains widely uncharacterized. It is important to elucidate these relationships, as surgical outcomes may be compared nationally between colleagues. Our objective is to evaluate the relationships between defect size and patient demographics, as well as between BCC subtypes and the number of MMS stages.

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  • - The study tested the antibacterial effects of root extracts from Jasminum officinale, Rosa damascena, and Paeonia officinalis against MRSA, finding that P. officinalis had significant efficacy with a minimum inhibitory concentration (MIC) of 0.4673 µg/ml, while the other two showed minimal activity.
  • - Chemical profiling of P. officinalis revealed 20 different metabolites, primarily terpenes, and network pharmacology was utilized to map these metabolites' targets related to MRSA infections, using various online databases and software tools.
  • - The research identified 254 targets associated with MRSA, with several key genes linked to the infection and highlighted the vascular smooth muscle contraction pathway as the top
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A facile electrochemical approach is proposed for the synchronous determination of acetaminophen (ACP), codeine (COD) and caffeine (CAF) utilizing unmodified screen-printed electrodes (SPEs). The determination of ACP, COD and CAF has been explored across different supporting electrolytes including sulfuric acid (HSO), hydrochloric acid (HCl), phosphoric acid (HPO) and Briton Robinson (B.R) buffer solutions.

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The durability and degradability of evaporitic rocks are always a critical concern in geological, civil, and geotechnical engineering applications, necessitating careful consideration for reliable, secure, and sustainable construction. This dataset is based on a comprehensive collection of geotechnical data involving both mechanical and physical properties as well as geochemical analyses for the evaporitic rocks in Abu Dhabi and its vicinity. The purpose of this dataset is to be an important source for construction professionals, engineers, and decision-makers in the region by providing basic insights into the challenges associated with building projects on and in evaporitic rocks.

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Aim: The primary factor causing chronic renal failure is diabetic nephropathy (DN) worldwide. However, the current biomarkers for DN have limited diagnostic utility. Thus, this work aimed to clarify the implications of microRNA-200a (miR-200a) and microRNA-132 (miR-132) and their correlation with NF-κB (nuclear factor- kappa beta), and, TNF-α (tumor necrosis factor -alpha) signaling to identify biomarkers able to distinguish late-stage from early- stage DN.

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Post-marketing hepatotoxicity findings are more common or occur much later. NSAIDs (non-steroidal anti-inflammatory drugs) like ibuprofen are consumed in large quantities around the world. NSAIDs have a low incidence of hepatotoxicity but their wide use makes them a major contributor to drug-induced liver injury.

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With the advancement in the egg industry sector, egg quality has assumed great significance in certain countries. Enhancements in the nutritional value of eggs may have direct affirmative consequences for daily nutrient intake and therefore for human health. Thus, affirmative improvement in egg quality boosts consumer preferences for eggs.

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Background: Recent studies suggest that individuals who underwent noncurative endoscopic resection for gastric cancer may require additional surgery. We conducted a comprehensive systematic review and meta-analysis to investigate the risk of lymph node metastasis in these cases.

Methods: We comprehensively examined relevant literature by extensively reviewing electronic databases such as PubMed, Cochrane Library, and Google Scholar.

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Background: Phospholamban (PLN) p.(Arg14del) variant carriers are at risk for development of malignant ventricular arrhythmia (MVA). Accurate risk stratification allows timely implantation of intracardiac defibrillators and is currently performed with a multimodality prediction model.

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The in-vitro anti-proliferative evaluation of Sinularia levi total extract against three cell lines revealed its potent effect against Caco-2 cell line with IC50 3.3 μg/mL, followed by MCF-7 and HepG-2 with IC50 6.4 μg/mL and 8.

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The crude extract of Hemimycale sp. marine sponge was evaluated as a cytotoxic drug against different cell lines; whereas it exhibited promising selective activity toward the breast cancer cell line only with IC value 199.6 ± 0.

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A key source of information for many decision support systems is identifying land use and land cover (LULC) based on remote sensing data. Land conservation, sustainable development, and water resource management all benefit from the knowledge obtained from detecting changes in land use and land cover. The present study aims to investigate the multi-decadal coastal change detection for Ras El-Hekma and El-Dabaa area along the Mediterranean coast of Egypt, a multi-sectoral development area.

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Unlabelled: The metabolic syndrome (MetS) is a serious public health issue that affects people all over the world. Notably, insulin resistance, prothrombotic activity, and inflammatory state are associated with MetS. This study aims to explore the relationship between cytokines and tumor necrosis factor-α (TNF-α), pancreatic-derived factor (PANDER), and interleukin (IL-)-37 and the accumulation of MetS components.

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  • The study focuses on isolating endophytic fungi from the seeds of the medicinal plant Corchorus olitorius and testing their antimicrobial properties against various bacterial and fungal strains.
  • Seven fungal strains from three genera (Penicillium, Fusarium, and Aspergillus) were successfully isolated, showing selective antibacterial activity, especially Aspergillus sp. (Ar 6), which demonstrated the strongest efficacy against E. coli and C. albicans.
  • The study highlights the potential of endophytic fungi as a source of new antimicrobial compounds, which could help address global antibiotic resistance issues.
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A Kinase Interacting Protein 1 (AKIP1) is a signalling adaptor that promotes mitochondrial respiration and attenuates mitochondrial oxidative stress in cultured cardiomyocytes. We sought to determine whether AKIP1 influences mitochondrial function and the mitochondrial adaptation in response to exercise in vivo. We assessed mitochondrial respiratory capacity, as well as electron microscopy and mitochondrial targeted-proteomics in hearts from mice with cardiomyocyte-specific overexpression of AKIP1 (AKIP1-TG) and their wild type (WT) littermates.

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Background: Cancer continues to be one of the biggest causes of death that affects human health. Chemical resistance is still a problem in conventional cancer treatments. Fortunately, numerous natural compounds originating from different microbes, including fungi, possess cytotoxic characteristics that are now well known.

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Background: Relative fat mass (RFM) is an emerging marker of obesity that estimates body fat percentage using a sex-specific formula containing height and waist circumference (WC). We studied the association of RFM with incident atrial fibrillation (AF), heart failure (HF), and coronary artery disease (CAD) and explored RFM cutoffs for cardiovascular disease (CVD) prediction.

Methods: We studied 95,003 participants (age 45 ± 13 years, 59% women) without prevalent AF, HF or CAD from the population-based Lifelines study.

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Background: Neonatal jaundice is one of the most common physiologic problems requiring medical attention in newborns. It is benign in most cases; however, high levels of bilirubin are neurotoxic and can lead to serious brain damage.

Objectives: This study aimed at assessment of magnitude of neonatal jaundice in cases of neonatal hyperbilirubinemia admitted into neonatal intensive care unit (NICU), Cairo University Pediatric Hospital and to detect possible etiologies, management and outcome.

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Background: Patients undergoing Mohs micrographic surgery (MMS) are given detailed wound care instructions to prevent postoperative complications. Previous studies have revealed low treatment adherence in general dermatology, but adherence to postoperative wound care and its potential association with poor surgical outcomes remain largely unstudied.

Objective: To determine the frequency and causes of wound care nonadherence in patients who underwent MMS.

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