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result(s) for
"Zaki, Abeer G"
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Dietary inclusion of nano-phosphorus improves growth performance, carcass quality, and growth-related traits of Nile tilapia (Oreochromis niloticus) and alleviates water phosphorus residues
2023
Supplementation of phosphorus nanoparticles is a promising strategy to reduce water pollution, improve phosphorus concentration in fish diet, and provide better production quality. We used 300 fingerlings of Nile tilapia that were randomly distributed into 3 groups; each one was attributed to 5 replicates of 20 fish per aquarium with initial weight (gm) (156 ± 1.25). The first diet contained traditional Di-calcium phosphate (D-group), the second supplemented with phosphorus nanoparticles in a dose equal to the previous conventional one (N-D group), and the last one included with phosphorus nanoparticles with the half dose of the conventional phosphorus group (1/2 N-D group). After 3 months of feeding, the N-D group showed the best growth performance including its feed conversion ratio (FCR), feed intake (FI), or body weight gain (BWG). Furthermore, the growth-related gene expression findings considering growth hormone receptor (GHR) and insulin-like growth factor-1 (IGF-1) were upregulated as well. Moreover, whole body chemical composition revealed higher Fe, Zn, P, and crude protein level in the N-D group than the other two groups. Lipoprotein lipase (LPL) and fatty acid synthetase (FAS) mRNA expression showed a significant increase in 1/2 N-D and N-D groups compared with the control group. To sum up, using of nano-phosphorus particles improved the growth rate and immunity response of Nile tilapia, besides decreasing water pollution.
Journal Article
Epidemiological and Genetic Insights of the Circulating Foot-and-Mouth Disease Virus Serotypes in Egypt
by
Abdelmegeed, Hala K
,
Zaki, Abeer G
,
Abdelwahed, Dina A
in
Amino acids
,
Epidemiology
,
Foot & mouth disease
2024
Foot-and-mouth disease virus (FMDV) remains a major threat to livestock in Egypt, with ongoing outbreaks involving serotypes A, O, and SAT2. This study aimed to improve the understanding of these circulating FMDV strains to improve control measures. Between 2022 and 2023, 134 cattle samples from across Egypt were analyzed, revealing a 67.9% positivity rate for Pan FMDV. Of these positive samples, 64 were identified as serotype A and 27 as serotype O. Genetic analysis indicated that serotype O strains clustered within the EA-3 topotype, suggesting endemic persistence and potential vaccine evasion, while serotype A strains were associated with the African topotype and linked to regions such as Ethiopia, Kenya, and Sudan. Notable amino acid mutations in the VP1 protein of both serotypes highlighted potential challenges to vaccine effectiveness. These findings underscore the need for enhanced surveillance, timely vaccine updates, and regional cooperation to effectively manage FMD outbreaks in Egypt and neighboring countries.
Journal Article
Clinical, Biochemical and Molecular Evaluations of Ivermectin Mucoadhesive Nanosuspension Nasal Spray in Reducing Upper Respiratory Symptoms of Mild COVID-19
by
Bazeed, Shamardan Ezz Eldin S
,
Rashad, Alaa
,
Hassan, Rehab G
in
Adult
,
Antigens
,
Antiviral Agents - administration & dosage
2021
Ivermectin is an FDA-approved broad-spectrum anti-parasitic agent that has been shown to inhibit SARS-CoV-2 replication
.
We aimed to assess the therapeutic efficacy of ivermectin mucoadhesive nanosuspension intranasal spray in treatment of patients with mild COVID-19.
This clinical trial included 114 patients diagnosed as mild COVID-19. Patients were divided randomly into two age and sex-matched groups; group A comprising 57 patients received ivermectin nanosuspension nasal spray twice daily plus the Egyptian protocol of treatment for mild COVID-19 and group B comprising 57 patients received the Egyptian protocol for mild COVID-19 only. Evaluation of the patients was performed depending on improvement of presenting manifestations, negativity of two consecutive pharyngeal swabs for the COVID-19 nucleic acid via rRT-PCR and assessments of hematological and biochemical parameters in the form of complete blood counts, C-reactive protein, serum ferritin and d-dimer which were performed at presentation and 7 days later.
Of the included patients confirmed with mild COVID-19, 82 were males (71.9%) and 32 females (28.1%) with mean age 45.1 ± 18.9. In group A, 54 patients (94.7%) achieved 2 consecutive negative PCR nasopharyngeal swabs in comparison to 43 patients (75.4%) in group B with P = 0.004. The durations of fever, cough, dyspnea and anosmia were significantly shorter in group A than group B, without significant difference regarding the duration of gastrointestinal symptoms. Duration taken for nasopharyngeal swab to be negative was significantly shorter in group A than in group B (8.3± 2.8 days versus 12.9 ± 4.3 days; P = 0.0001).
Local use of ivermectin mucoadhesive nanosuspension nasal spray is safe and effective in treatment of patients with mild COVID-19 with rapid viral clearance and shortening the anosmia duration.
NCT04716569; https://clinicaltrials.gov/ct2/show/NCT04716569.
Journal Article
Circulating miR-199a and long noncoding-RNA ANRIL as Promising Diagnostic Biomarkers for Inflammatory Bowel Disease
by
Samy, Amira
,
Zaki, Othman M
,
Gomaa, Mohamed S
in
Adult
,
Biomarkers - blood
,
Case-Control Studies
2024
Abstract
Background & Aims
Inflammatory bowel disease (IBD), involving both Crohn’s disease (CD) and ulcerative colitis (UC), represents a chronic, immune-mediated inflammatory disease due to an uncontrolled, ongoing inflammatory response to intestinal bacteria in those with genetic susceptibility. MicroRNA (miRNA) extrusion from relevant remote organs or tissues is reflected in the expression of miRNAs in serum and plasma. Both UC and CD patients had higher blood levels of expressed miR-199a. Long noncoding RNA (lncRNA) ANRIL is a proinflammatory gene that mediates nuclear factor κB to play a role in inflammatory diseases, such as IBD. The aim of the current study is to investigate the potential role of both miR-199a and ANRIL in diagnosing IBD in adult patients.
Methods
Sixty-seven IBD patients diagnosed clinically, radiologically, endoscopically, and histologically were included in this prospective cohort study. Participants were classified into 3 groups: the UC group (n = 35), the CD group (n = 32), and the control group (n = 30). Demographics, history taking, laboratory characteristics, and treatments were recorded. Tumor necrosis factor α, miR-199a, and ANRIL were measured.
Results
The findings suggested that miR-199a and ANRIL might be associated with the occurrence or progression of IBD because both genes were substantially expressed in the peripheral blood of patients with this condition. Receiver-operating characteristic curve analysis indicated that the detection of miR-199a and ANRIL had a predictive sensitivity of 62.9% and 88.6% and a specificity of 70.7% and 96.7% for the occurrence of UC cases, respectively, and a predictive sensitivity of 72.4% and 46.9% and a specificity of 96.7% and 34.7% for the occurrence of CD cases, respectively.
Conclusions
Both miR-199a and ANRIL are abundant in the sera of IBD adult Egyptian patients (UC and CD). Both can represent a noninvasive marker for early disease diagnosis.
Lay Summary
This study investigated the relation between tumor necrosis factor α, ANRIL, and miR-199a in inflammatory bowel disease patients to determine the probability of using them as prognostic and diagnostic biomarkers, as well as distinguishing between Crohn’s disease and ulcerative colitis patients. Our findings showed that ANRIL and miR-199a can represent noninvasive biomarkers for early disease diagnosis.
Journal Article
Comprehensive review on COVID-19: etiology, pathogenicity, and treatment
by
Mustafa, Mazen
,
Fadl, Rehab G.
,
Abdelmohsen, Usama Ramadan
in
Chronic illnesses
,
COVID-19
,
Diabetes
2025
With the unprecedented surge of severe COVID-19 cases in early 2020, researchers and medical professionals worked actively to identify effective viral infection treatments based on a scientific understanding of viruses. Over the past few years, an enormous amount of research has investigated the viral infection and replication processes following the first SARS-CoV-2 case. With this knowledge, many drugs have been explicitly created to inhibit viral replication or decrease the severity of the immune response. Additionally, scientists have utilized decades of research and techniques to expedite SARS-CoV-2 vaccine development. SARS-CoV-2, a positive-strand RNA virus, belongs to the Sarbecovirus subgroup of Betacoronaviruses. Its emergence is not unique; previous outbreaks like SARS and MERS have shaped our understanding of coronavirus-related diseases. Molecular clock analysis suggests that the ancestor of all current coronaviruses existed over 10,000 years ago, with subsequent evolution occurring around 3300–2400 BC. Researchers have explored synthetic and natural treatments alongside other antiviral therapies, corticosteroids, and immunotherapies. Additionally, using artificial intelligence and nano-based technologies enriched SARS-CoV-2 diagnosis and management. In this comprehensive review, we provide recent literature on COVID-19, exploring its evolving etiology, pathogenicity, and pathophysiology, alongside developments in synthetic and natural therapeutic strategies, vaccines, artificial intelligence in diagnosis, and nano-based technologies.
Journal Article
The Influence of rs1859168 Polymorphism on Serum Expression of HOTTIP and Its Target miR-615-3p in Egyptian Patients with Breast Cancer
by
Hemeda, Nada F.
,
Zaidan, Mohamed
,
Abdelaleem, Omayma O.
in
Alleles
,
Biomarkers
,
Breast cancer
2021
Background: Polymorphisms of long noncoding RNAs are lately documented as hazardous factors for the development of numerous tumors. Furthermore, the evaluation of noncoding RNAs has emerged as a novel detector of breast cancer patients. We aimed to genotype the HOXA transcript at the distal tip (HOTTIP) rs1859168 and assess its relationship with the levels of the serum HOTTIP and its target miR-615-3p in patients with breast cancer (BC). Methods: One hundred and fifty-one patients with BC, 139 patients with fibroadenoma (FA), and 143 healthy participants were incorporated into the current study. The genotyping of rs1859168 and the measurements of the HOTTIP and miR-615-3p levels were assessed using quantitative real-time PCR. Results: We revealed a significant association between each of the CC genotypes, C allele, dominant and recessive models, and the increased risk of BC (p = 0.013, p < 0.001, p < 0.001, and p < 0.001, respectively) relative to the healthy controls. Similarly, the CC genotype, C allele, and recessive model were observed to be related to the increased incidence of BC with respect to FA (p < 0.001 for all). A significant upregulation of HOTTIP and a marked decrease of miR-615-3p were verified in patients with BC compared to each of the healthy individuals, patients with FA, and the non-BC group (healthy subjects + FA) (p < 0.001 for all). A significant negative correlation was demonstrated between the expression of HOTTIP and miR-615-3p in the serum of patients with BC. The HOTTIP expression was upregulated, while that of miR-615-3p was downregulated in patients with BC who carried the CC genotype with respect to those who carried the AA or AC genotypes (p < 0.05 for all). Conclusions: The genetic variants of rs1859168 are linked to an increased susceptibility to BC. Moreover, HOTTIP and miR-615-3p may be used as novel indicators and targets for the treatment of patients with BC.
Journal Article
Clinical, Biochemical and Molecular Evaluations of Ivermectin Mucoadhesive Nanosuspension Nasal Spray in Reducing Upper Respiratory Symptoms of Mild COVID-19 Corrigendum
by
Hassan,Abeer S
,
Abdelmaksoud,Aida A
,
Hassan,Mohammed H
in
Biochemical and molecular
,
Corrigendum
,
COVID-19
2025
Aref ZF, Bazeed SEES, Hassan MH, et al. Int J Nanomedicine. 2021;16:4063-4072. https://doi.org/10.2147/IJN.S313093
It has come to our attention that there are errors on page 4067 of the published paper. Specifically, Figure 1 and in the Results, Demographic Data of Study Groups section.
There are spelling errors throughout the figure artwork. The text \"swaps\" should read \"swabs\" and \"d-dimmer\" should read \"D-Dimer\". The correct Figure 1 is shown below.
Figure 1 Flow chart of the study design.
Results, Demographic Data of Study Groups section, left column, line 13, the text \"P = 0 0.7\" should read \"P = 0.7\".
The authors apologize for these errors and advise they do not affect the results of the paper.
Journal Article