Publications by authors named "Mohamed A Fahmy"

Article Synopsis
  • The study investigates bacterial species in a new pharmaceutical facility in 6th of October City, Egypt, focusing on their resistance patterns and phylogenetic relationships.
  • All bacterial isolates were sensitive to Levofloxacin, but five Gram-positive and one Gram-negative multidrug-resistant strains were identified, raising concerns about potential contamination in drug manufacturing.
  • Disinfectants tested were mostly effective, with Clorox showing the best results against biofilms, while Dettol was less effective and only bacteriostatic, indicating the need for careful selection of disinfectants in cleanroom environments.
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Surface Enhanced Raman Spectroscopy (SERS) is a highly sensitive analytical technique used for fingerprint recognition of molecular samples. The SERS effect, which enhances Raman scattering signals, has been the subject of extensive research over the past few decades. More recently, the commercialization of portable Raman spectrometers has brought SERS closer to real-world applications.

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Salinity negatively impacts crop production by affecting physiological and biochemical processes in plants. This study investigates the effectiveness of Nano-ZnO (NZn), proline (PA), Nano-TiO (NTi), Nano-SiO (NSi)), and biochar inoculated with (OSBS) in enhancing wheat tolerance to salinity stress. Pot experiments were conducted under saline conditions with varying rates of biochar and foliar applications.

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Polyphenols, including phenolics, alkaloids, and terpenes, are secondary metabolites that are commonly found in fruits, vegetables, and beverages, such as tea, coffee, wine, chocolate, and beer. These compounds have gained considerable attention and market demand because of their potential health benefits. However, their application is limited due to their low absorption rates and reduced tissue distribution efficiency.

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This study utilizes (MI) for the first time to investigate the uptake and translocation of chlorpyrifos (CPF; 10 µg g) from soil, introducing a new approach to improve the efficacy of this technique, which includes using biosurfactants ( and ) at 10 CFU/mL to degrade CPF under greenhouse conditions. Moreover, antioxidant enzymes, including superoxide dismutase (SOD) and peroxidase (Prx), and oxidative stress due to hydrogen peroxide (HO) and malondialdehyde (MDA) in MI roots and leaves were evaluated under CPF stress. Our results demonstrated that amending soil with MI and followed by significantly reduced CPF levels in the soil ( > 0.

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One of the most common cancers that result in death is lung cancer. There is new hope in the fight against lung cancer thanks to the chemopreventive properties of natural dietary substances like β-caryophyllene oxide (CPO), and research is currently being done to test this theory. CPO, a sesquiterpene isolated from medicinal plant essential oils, inhibits carcinogenesis and has been effective in treating many cancers.

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Purpose: The present study aimed to compare the immune-enhancing potential of gold nanoparticles (AuNPs) to Alum against rabies vaccine and the related immunological, physiological, and histopathological effects.

Materials And Methods: Alum and AuNPs sole and in combination with rabies vaccine were used at 0.35 mg/mL and 40 nM/mL, respectively.

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A new three-dimensional (3D) boundary element method (BEM) strategy was developed to solve fractional-order thermo-elastoplastic ultrasonic wave propagation problems based on the meshless moving least squares (MLS) method. The temperature problem domain was divided into a number of circular sub-domains. Each node was the center of the circular sub-domain surrounding it.

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The primary goal of this article is to propose a new fractional boundary element technique for solving nonlinear three-temperature (3 T) thermoelectric problems. Analytical solution of the current problem is extremely difficult to obtain. To overcome this difficulty, a new numerical technique must be developed to solve such problem.

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The main aim of this paper was to develop an advanced processing method for analyzing of anisotropic thermoelastic metal and alloy discs with holes. In the boundary element method (BEM), the heat impact is expressed as an additional volume integral in the corresponding boundary integral equation. Any attempt to integrate it directly will necessitate domain discretization, which will eliminate the BEM's most distinguishing feature of boundary discretization.

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Background: Resistance to antibiotics and anticancer therapy is a serious global health threat particularly in immunosuppressed cancer patients. Current study aimed to estimate the antibacterial and anticancer potentials of short-term exposure to extremely low frequency electromagnetic field (ELF-EMF) and silver nanoparticles (AgNPs) either in sole or combined form.

Methods: Antibacterial activity was evaluated via determination of the bacterial viable count reduction percentage following exposure, whereas their ability to induce apoptosis in breast cancer (MCF-7) cell line was detected using annexin V-fluorescein isothiocyanate and cell cycle analysis.

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Purpose: The present study aimed to evaluate the anticancer potential of Egyptian scorpion Leiurus quinquestriatus venom (ScV) or human Wharton's jelly-derived mesenchymal stem cells conditioning medium (hWJ-MSCs-CM)/CM against breast cancer (MCF-7) cell line as an alternative effective cancer biotherapy.

Methods: Venom (ScV) toxicity was performed recording concentration-dependent viability % and ScV IC value was in the order of 100 μg/ml. MCF-7 were treated with hWJ-MSCs-CM used as (25%, 50%, and 75% ml) or the IC of ScV.

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Introduction: Bladder cancer is still of unknown initiation and progression, it is difficult to treat the patient once bladder cancer have a distant metastasis.

Materials And Methods: In the present study, propolis extract was evaluated against bladder cancer cells (T24). Two independent pathways were investigated, apoptosis and angiogenesis, Bax, Bcl-2, P53, and caspase-3 for apoptosis, vascular endothelial growth factor receptor and protein kinase A as angiogenesis potential targets.

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Purpose: One of the essential goals regarding the successful control of rabies infection is the development of a safe, effective, and inexpensive vaccine. the current study aimed to evaluate the inactivation potential of β-propiolactone (βPL), binary ethyleneimine (BEI), and hydrogen peroxide (HO).

Materials And Methods: Estimating the inactivation kinetics of βPL, BEI, and HO revealed that the tested inactivants could completely and irreversibly inactivate rabies virus within 2, 12, and 4 hours, respectively while maintaining its viral immunogenicity.

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Purpose: The objective of the present study was to evaluate the immune-enhancing potential of outer membrane protein (OMP) and alum as adjuvants towards inactivated Vero cells rabies vaccine (FRV/K2).

Materials And Methods: Six groups of female Sprague Dawley albino rats (10/group) were used in the evaluation of immunogenicity and safety of vaccines and adjuvants. Total immunoglobulin G secreted interferon-gamma (IFN-γ), and the percentage of proliferated CD4+ and CD8+ T cells were measured.

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Since 2019, entire world is facing the accelerating threat of Corona Virus, with its third wave on its way, although accompanied with several vaccination strategies made by world health organization. The control on the transmission of the virus is highly desired, even though several key measures have already been made, including masks, sanitizing and disinfecting measures. The ongoing research, though devoted to this pandemic, has certain flaws, due to which no permanent solution has been discovered.

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The present work aimed to study the activity of naturally derived fungal secondary metabolites as anticancer agents concerning their cytotoxicity, apoptotic, genetic, and histopathological profile. It was noticed that Aspergillus terreus, Aspergillus flavus, and Aspergillus fumigatus induced variable toxic potential that was cell type, secondary metabolite type, and concentration dependent. Human colonic adenocarcinoma cells (Caco-2) showed less sensitivity than hepatocyte-derived cellular carcinoma cells (HuH-7), and in turn, the half-maximal inhibitory concentration (IC) was variable.

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Article Synopsis
  • The study examined the anticancer effects of ethanolic extracts from cactus and lupin on colon cancer cells, specifically focusing on their antioxidant and cytotoxic properties.
  • Lupin extract showed the highest levels of bioactive compounds and significant cytotoxic effects, particularly in regulating genes related to apoptosis.
  • Overall, both lupin and cactus extracts demonstrate strong potential as natural anticancer agents, with lupin extract being the most effective for therapeutic applications.
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Article Synopsis
  • * Research shows that Ascorbic acid combined with cupric ions can effectively inactivate the virus without losing its effectiveness as a vaccine.
  • * HemaGel demonstrated superior vaccine stabilization compared to human albumin and lactose, leading to improved immune responses in terms of IgG levels and specific cytokines.
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Background: A high proportion of children with bladder exstrophy will continue to suffer from urinary incontinence and a miserable life even after a well-performed staged reconstruction in specialized centers. Most of those children usually have a normal anal sphincter allowing construction of a neobladder from the rectum, so they are continent without an abdominal stoma, and do not require frequent catheterization, which greatly contribute to a favorable body image.

Objective: In this study a modified Duhamel's rectal pouch done for 19 children, with implication of suitable stapler adopted to construct a rectal bladder with a non-refluxing urterorectostomy, there is a theoretical advantage in our procedure of avoiding a mix of urine and feces.

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To test if trehalose could be a better cryoprotectant for BCG than the usually used lactose and predict viability of BCG during shelf-life, BCG was suspended into three stabilizer systems containing 15% w/v trehalose, trehalose-gelatin mixture (in ratio, 30:1 w/w) or lactose. Each formula was lyophilized and several quality parameters were tested before and after lyophilization including sterility, safety, viability, morphology and moisture content. Samples of lyophilized formulae were tested for their reconstitution time and others were charged to stability chambers at 5°C for the performance of real time study.

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Background: The normal relationship between the scrotum and penis during fetal development is controlled by several genetic and hormonal factors, and impairment of this positional relation results in a wide spectrum of positional congenital anomalies.

Objective: This a cohort study analysing 63 cases of penoscrotal anomalies (PSAs) according to severity and other associated malformations to provide a simple classification for recognising, describing and categorizing cases that may require surgical correction.

Design And Setting: Between 2005 and 2013, 63 diverse cases of penoscrotal positional anomaly were detected and analysed based on their hormonal profile and other associated anomaly.

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Background: Children who have had extensive abdominal wall vascular anomalies (VAs) face 3 common reconstructive options: either tolerating the complications of these lesions, exposure to repeated laser therapy session with its sequelae, or excision followed by a color-matched skin graft. The use of serial tissue expansion and excision of the affected skin offers a potentially better option under the right circumstances. Tissue expanders (TEs) have broad applicability but are not without complications.

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Background: Children with giant congenital melanocytic nevi (GCMN) pose a great challenge to pediatric and reconstructive surgeons because they have to cover the widely exposed area after its excision. A variety of treatment options exist for the management of such cases. In this retrospective review of a selected group of children who had a GCMN of their abdominal walls managed with implantation of tissue expanders (TEs) for staged reconstruction, patients were evaluated with respect to complications and general and esthetic criteria for patient and parent satisfaction.

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