Marwa Sayed Abdel-Tawab

Dr. Marwa Sayed Abdel-Tawab


Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 October 2020 in Reports of Biochemistry and Molecular Biology
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MAMarwa Sayed Abdel-Tawab
Marwa Sayed Abdel-Tawab
OTOla Mostafa Tork
Ola Mostafa Tork
GMGomaa Mostafa-Hedeab
Gomaa Mostafa-Hedeab
MHManal Ewaiss Hassan
Manal Ewaiss Hassan
Background: Medications to prevent the development of NSAID-induced gastric ulcers have a large range of unpleasant side effects. Recent efforts have been focused on determining safer alternative non-toxic and natural forms of anti-ulcer treatments. Methods: Twenty-four male rats were divided into 4 groups: 1: control group that received no treatment; 2: the ...

21 April 2022 in PLOS ONE
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MAMarwa Sayed Abdel-Tawab
Marwa Sayed Abdel-Tawab
HFHanan Fouad
Hanan Fouad
AOAsmaa M. Othman
Asmaa M. Othman
Ragaey Ahmad EidRagaey Ahmad Eid
Ragaey Ahmad Eid
MMMarwa Abdeltawab Mohammed
Marwa Abdeltawab Mohammed
HRHoda Ramadan Reyad
Hoda Ramadan Reyad
Gastric cancer (GC) is considered lethal aggressive cancer. In Egypt, GC has a low incidence but unfortunately, it is mostly diagnosed at an advanced stage with a poor prognosis. Assessment of novel markers that can be used in the early detection of GC is an urgent need. The present study was performed to assess the association of the Pleckstrin homology domain-containing S1 (PLEKHS1)، arylacetamide deacetylase (AADAC, and Cyclin-dependent kinase inhibitor 3 (CDKN3) genes with GC and to correlate their gene expression levels with tumor stage, grade, and other clinicopathological features. The current work was performed on forty gastric tissue samples; twenty in Group 1 with GC tissues at different stages, and grades and twenty in Group 2 (control group) with non-tumorous tissue. PLEKHS1, AADAC, and CDKN3 gene expression were assessed by RT-qPCR. AADAC, CDKN3 genes were significantly (p<0.001) upregulated, while PLEKHS1 gene was significantly (p<0.001) downregulated in the GC group than the control group. AADAC gene expression exhibited a high significant (p<0.001) positive correlation with the tumor grades and the tumor stages. A high significant negative correlation between AADAC, and CDKN3 gene expression (r = -.760, p<0.001) was found. The three studied parameters showed high significant sensitivity and specificity in the prediction of the presence of GC. PLEKHS1, AADAC, and CDKN3 gene expressions were suggested to be used as diagnostic and predictive biomarkers of GC, additionally, AADAC may be used as a prognostic marker in these patients for further future confirming studies.

13 October 2023 in Molecular Biology Reports
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MAMarwa Sayed Abdel-Tawab
Marwa Sayed Abdel-Tawab
MMMohamed Gamal Mohamed
Mohamed Gamal Mohamed
NDNoha A. Doudar
Noha A. Doudar
EREnas Ezzat Rateb
Enas Ezzat Rateb
HRHoda Ramadan Reyad
Hoda Ramadan Reyad
NENaglaa Adli Abd Elazeem
Naglaa Adli Abd Elazeem
Background: Diabetic nephropathy (DN), which is a chronic outcome of diabetes mellitus (DM), usually progresses to end-stage renal disease (ESRD). The DN pathophysiology, nevertheless, is not well-defined. Several miRNAs were reported to be either risk or protective factors in DN. Methods, and results: The present study sought to inspect the potential diagnostic and prognostic value of hsa-miR-221 in DN. The study included 200 participants divided into four groups: Group 1 (50 patients with DN), Group 2 (50 diabetic patients without nephropathy), Group 3 (50 nondiabetic patients with CKD), and Group 4 (50 healthy subjects as a control group). Patients in groups 1 and 3 were further classified based on the presence of macroalbuminuria and microalbuminuria. Hsa-miR-221 expression was measured by RT- qRT-PCR. DN patients had significantly elevated serum hsa-miR-221 levels than the other groups, while diabetic patients without nephropathy exhibited elevated levels compared to both nondiabetic patients with CKD, and the control group. The DN patients with macroalbuminuria revealed significantly higher mean values of hsa-miR-221 relative to the patients with microalbuminuria. Significant positive associations were observed in the DN group between serum hsa-miR-221 and fasting insulin, fasting glucose, HOMA IR, ACR, and BMI. The ROC curve analysis of serum hsa-miR-221 in the initial diagnosis of DN in DM revealed high specificity and sensitivity. Conclusions: It is concluded that hsa-miR-221 has the potential to be a useful biomarker for prognostic and diagnostic purposes in DN.

1 October 2019
Verified
Journal Article
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OTOla Mostafa Tork
Ola Mostafa Tork
LRLaila Ahmed Rashed
Laila Ahmed Rashed
NSNermeen Bakr Sadek
Nermeen Bakr Sadek
MAMarwa Sayed Abdel-Tawab
Marwa Sayed Abdel-Tawab

27 September 2018 in The Egyptian Journal of Internal Medicine
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NANehal H. Al-Said
Nehal H. Al-Said
FTFatma M. Taha
Fatma M. Taha
GAGhada M. Abdel-Aziz
Ghada M. Abdel-Aziz
MAMarwa Sayed Abdel-Tawab
Marwa Sayed Abdel-Tawab
Fetuin-A is a hepatic secretory protein that binds to insulin receptors and inhibits insulin resistance (IR) kinase activity as well as IR autophosphorylation in vivo and in vitro. This study aimed to investigate fetuin-A levels in patients with type 2 diabetes mellitus (T2DM) and their relation to microvascular complications. This descriptive study was conducted on 160 patients. Group 1 included (n=40) diabetic patients without microvascular complications, group 2 (n=40) included diabetic patients with nephropathy, group 3 (n=40) included diabetic patients with retinopathy, and group 4 represented (n=40) healthy control. Serum fetuin-A and insulin were measured by enzyme-linked immunosorbent assay. Glucose was measured, and homeostasis model assessment for IR (HOMA-IR) was estimated. Fetuin-A levels were significantly higher in all T2DM groups compared with controls. There was a significant positive correlation between fetuin-A, insulin, and HOMA-IR in all studied groups. There was a significant positive correlation between fetuin-A and some of metabolic syndrome criteria in all diabetic patients. There were high significant increases in the mean levels of fetuin-A, insulin, and HOMA-IR in the diabetic patients with nephropathy group than other groups. There was a nonsignificant increase in fetuin-A levels in diabetic patients with retinopathy than the diabetics without microvascular complications. Fetuin-A may be used as a marker for microvascular complications in T2DM, especially the diabetic nephropathy. Antifetuin drugs may be invented to delay diabetic microvascular complications.

1 January 2020 in BioMed Research International
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MAMarwa Sayed Abdel-Tawab
Marwa Sayed Abdel-Tawab
HFHanan Fouad
Hanan Fouad
DODalia A. Omran
Dalia A. Omran
AAAml E. Abdou
Aml E. Abdou
SZShaimaa Mohamed Zaied
Shaimaa Mohamed Zaied
AMAlaa Abdelhamid Mohamed
Alaa Abdelhamid Mohamed
Background. Hepatitis C virus (HCV) is considered a major global public health problem. Recently, there are great advances in HCV therapy, but there are some limitations that are creating an urgent need for assessment of some cytokines that have a potent antiviral effect in the immune system and anti‐inflammatory effects to provide a potential novel immunotherapeutic target in HCV infection. Objective. This study was directed to assess the serum levels and gene expression levels of Galectin‐4 (LEG4), Interleukin‐27 (IL‐27), and Complement‐7 (C‐7) and their correlation with the viral load in HCV infection. Subjects and Methods. This work was conducted on 80 subjects, Group 1 (n = 40) early detected HCV patients and Group 2 (n = 40) healthy controls. LEG4, IL‐27, and C‐7 were assessed at the protein levels by ELISA, and their gene expression was assessed by RT‐qPCR. The viral load was measured by PCR. Results. There were significant elevations in the mean levels of gene expression and serum levels of all studied parameters LEG4, IL‐27, and C‐7 in the HCV group compared to the control group. Significant negative correlations between the viral load and each of the serum proteins and gene expressions of both LEG4 and IL‐27 in HCV patients were found. The gene expression levels of LEG4, IL‐27, and C‐7 were positively correlated with their corresponding serum proteins in HCV patients.Conclusion. LEG4 and IL‐27 showed significant negative correlations with the viral load, which could be an immune response to the control of the extent of hepatic inflammation, thus creating a potential novel immunotherapeutic approach in HCV infection for further studies or therapeutic clinical trials.