Mahmoud Nassar

Dr. Mahmoud Nassar

Division of Endocrinology, Diabetes and Metabolism, SUNY University at Buffalo, Buffalo, New York, USA
orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

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

Representative Publications

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22 March 2025 in ASIDE Internal Medicine
Verified
Journal Article
Open access
PDF file
MNMahmoud Nassar
Mahmoud Nassar
HAHazem Abosheaishaa
Hazem Abosheaishaa
KEKhaled Elfert
Khaled Elfert
ABAzizullah Beran
Azizullah Beran
AIAbdellatif Ismail
Abdellatif Ismail
AAAhmed Y. Azzam
Ahmed Y. Azzam
Introduction: The increasing utilization of real-world data platforms in medical research necessitates a comprehensive understanding of their methodological strengths and limitations. TriNetX has emerged as a significant platform for exploring large healthcare datasets. This review aims to critically evaluate the methodological framework and limitations of TriNetX, assess the impact of electronic health record coding accuracy on data reliability, and analyze the platform's capacity for generating generalizable real-world evidence in clinical research. Methods: We conducted a comprehensive review examining TriNetX's data architecture, quality metrics, and research applications, focusing on data integrity, platform architecture, and the external validity of research findings. Results: The analysis reveals significant methodological considerations. TriNetX's reliance on retrospective data introduces biases such as selection bias and confounding variables. The coding accuracy of electronic health records, which have not been independently validated, is a critical determinant of data reliability. The demographic representation is limited, affecting the generalizability of results. Discussion: Despite its extensive use, TriNetX's effective utilization requires careful consideration of its inherent limitations. The platform's data, predominantly from insured populations in academic and acute care settings, may not fully represent broader demographic groups. Addressing these methodological constraints is crucial for enhancing the reliability and applicability of research findings derived from TriNetX. Conclusions: TriNetX is a valuable resource for healthcare research. However, its limitations must be acknowledged, and future research should focus on standardizing data collection and enhancing data validation processes to mitigate platform-specific biases and improve the quality and applicability of the findings.

4 September 2021 in Diabetes & Metabolic Syndrome: Clinical Research & Reviews
Verified
Journal Article
Closed access
MNMahmoud Nassar
Mahmoud Nassar
ADAhmed Daoud
Ahmed Daoud
NNNso Nso
Nso Nso
LMLuis Medina
Luis Medina
VGVictoria Ghernautan
Victoria Ghernautan
AMAnoop Misra
Anoop Misra

1 September 2021 in Diabetes & Metabolic Syndrome: Clinical Research & Reviews
Verified
Journal Article
Closed access
MNMahmoud Nassar
Mahmoud Nassar
NNNso Nso
Nso Nso
CGCarlos Gonzalez
Carlos Gonzalez
SLSofia Lakhdar
Sofia Lakhdar
MAMohsen Alshamam
Mohsen Alshamam
VRVincent Rizzo
Vincent Rizzo

11 November 2022 in Medicine
Verified
Journal Article
Open access
MNMahmoud Nassar
Mahmoud Nassar
VGVictoria Ghernautan
Victoria Ghernautan
NNNso Nso
Nso Nso
ANAkwe Nyabera
Akwe Nyabera
FCFrancisco Cuevas Castillo
Francisco Cuevas Castillo
MEMohamed El-Kassas
Mohamed El-Kassas
The gastrointestinal tract (GI) is the second most affected organ system in individuals suffering from systemic/localized scleroderma (SSc) or localized scleroderma. SSc can affect any part of the GI, between the oral cavity and anorectum. The annual incidence of SSc in the United States is estimated to be 19.3 cases per million adults, with the highest incidence reported in people aged 44 to 55. Females are 5 times more likely than males to suffer from SSc. Morbidity and mortality rates associated with SSc are predominantly elevated among patients with GI manifestations. Esophageal and intestinal manifestations impact 90% and 40% to 70% of patients with systemic scleroderma, respectively. SSc patients are known to suffer from small bowel hypomotility and small intestinal bacterial overgrowth, which cause malabsorption and malnutrition, ultimately contributing to the 50% mortality rate. Fecal incontinence is a common symptom of SSc that can lead to depression. SSc patients may suffer from gastrointestinal complications that can negatively impact their quality of life on a daily basis. Multidisciplinary approaches are necessary for systematically managing gastrointestinal complications associated with SSc. A prospective study should focus on developing targeted therapies to improve recovery patterns and prognosis in cases of SSc. This article summarizes the epidemiology, commonly reported clinical manifestations, complications, and available treatments for treating GI pathology in SSc patients.

1 January 2021 in Diabetes & Metabolic Syndrome: Clinical Research & Reviews
Verified
Journal Article
Closed access
MNMahmoud Nassar
Mahmoud Nassar
NNNso Nso
Nso Nso
BBBahaaeldin Baraka
Bahaaeldin Baraka
MAMostafa Alfishawy
Mostafa Alfishawy
MMMahmoud Mohamed
Mahmoud Mohamed
ISissac Sachmechi
issac Sachmechi

1 July 2021 in Diabetes & Metabolic Syndrome: Clinical Research & Reviews
Verified
Journal Article
Closed access
MNMahmoud Nassar
Mahmoud Nassar
HCHoward Chung
Howard Chung
YDYarl Dhayaparan
Yarl Dhayaparan
ANAndrew Nyein
Andrew Nyein
BABryan Jose Acevedo
Bryan Jose Acevedo
EKEben Kimball
Eben Kimball