Publications by authors named "Iman Montasser"

Article Synopsis
  • Hepatocellular carcinoma (HCC) is the most common liver cancer, often caused by chronic hepatitis and cirrhosis, with this study aiming to examine the genomic characteristics of HCC in Egyptian patients through whole exome sequencing.
  • Whole exome sequencing was performed on 13 HCC patients who underwent surgery, revealing specific mutational signatures and a set of highly mutated genes associated with HCC, including notable mutations in APOB and RP1L1 across multiple studies.
  • The findings confirmed previously established patterns in HCC genetics, identifying critical signaling pathways and potential clinical targets, highlighting the importance of these mutations for future research and therapy development.
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Medical professional environments are becoming increasingly multicultural, international, and diverse in terms of its specialists. Many transplant professionals face challenges related to gender, sexual orientation or racial background in their work environment or experience inequities involving access to leadership positions, professional promotion, and compensation. These circumstances not infrequently become a major source of work-related stress and burnout for these disadvantaged, under-represented transplant professionals.

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Background: Bile stones are associated with numerous complications in liver transplant recipients. Endoscopic retrograde cholangiopancreatography (ERCP) has been proven to be safe and highly effective in dealing with most post-transplant biliary complications.

Objective: The objective of this study was to identify the possible risk factors for bile stone formation on top of biliary stricture, the effects of stones on graft outcomes, and their management.

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Background: Patients who undergo living donor liver transplantation (LDLT) may suffer complications that require intensive care unit (ICU) readmission.

Aim: To identify the incidence, causes, and outcomes of ICU readmission after LDLT.

Methods: A retrospective cohort study was conducted on patients who underwent LDLT.

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Background: NAFLD and NASH are emerging as primary causes of chronic liver disease, indicating a need for an effective treatment. Mutaflor® probiotic, a microbial treatment of interest, was effective in sustaining remission in ulcerative colitis patients.

Objective: To construct a genetic-epigenetic network linked to HSC signaling as a modulator of NAFLD/NASH pathogenesis, then assess the effects of Mutaflor on this network.

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Background And Study Aims: Portal vein thrombosis (PVT) is no longer an absolute contraindication for living donor liver transplantation (LDLT). This study aimed to assess the short-term outcomes of LDLT and compare the 1-year survival rates between patients with and without preoperative PVT.

Patients And Methods: This combined prospective and retrospective cohort study was conducted on patients who underwent LDLT at Ain Shams Centre for Organ Transplantation (ASCOT) between 2008 and 2020.

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Background: There is some evidence in the literature to suggest that pre-operative counselling improves pain scores postoperatively. However, it is unclear whether pre-operative counselling of the donor improves immediate and short-term outcomes after living liver donation.

Objectives: This systematic review aimed to investigate the available quality of evidence (QOE) of pre-operative counselling for living donors on short term outcomes, provide expert opinion, grade recommendations and identify relevant components for Enhanced Recovery after Surgery (ERAS) protocols.

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Background: Biliary complications (BCs) after liver transplantation (LT) remain a considerable cause of morbidity, mortality, increased cost, and graft loss.

Aim: To investigate the impact of BCs on chronic graft rejection, graft failure and mortality.

Methods: From 2011 to 2016, 215 adult recipients underwent right-lobe living-donor liver transplantation (RT-LDLT) at our centre.

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Background: Despite significant advancements in liver transplantation (LT) surgical procedures and perioperative care, post-LT biliary complications (BCs) remain a significant source of morbidity, mortality, and graft failure. In addition, data are conflicting regarding the health-related quality of life (HRQoL) of LT recipients. Thus, the success of LT should be considered in terms of both the survival and recovery of HRQoL.

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Background: The current SARS-CoV-2 pandemic may negatively impact the care of liver transplant candidates and recipients.

Main Body Of The Abstract: Accordingly, each country must have its national guidelines based on the current situation and according to available tools. Liver Transplantation Scientific Committee of Waiting List Project in Egypt was established in 13 April 2020.

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Background And Aim: Behavior of HCC that developed after DAAs therapy for HCV infection is still debated. In this study we aim to compare characteristics and pattern of de novo HCC in cirrhotic HCV patients who were treated and untreated with DAAs.

Patients And Methods: This study included 160 cirrhotic HCV patients presented with de novo HCC during the period of December 2017 to December 2018.

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Background And Study Aims: Several factors affect the quality of life and personal well-being of transplant recipients, including Ramadan fasting for Muslims. This study aimed to assess the effect of Ramadan fasting on the renal and liver functions of liver transplantation recipients and to propose a protocol for adapting an Immunosuppression regimen and follow-up schedule for patients wishing to fast after liver transplantation.

Patients And Methods: This prospective study was conducted on 45 recipients who wished to fast Ramadan from 17th May to 14th June 2018, at Ain Shams Center for Organ Transplantation, Cairo, Egypt.

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Background: Screening for neoplastic lesions is mandatory as a part of the evaluation process of potential candidates for liver transplant (LT). This work aimed at identifying the main findings in screening colonoscopy and their risk factors.

Methods: Endoscopic and pathologic findings of the biopsied lesions of 311 potential candidates for living donor liver transplant were collected and analyzed.

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Background: The biology of hepatocellular carcinoma remains poorly understood. Long non-coding RNAs (lncRNAs) have been confirmed to be key regulators of most cell processes and cancer. The lncRNA cancer susceptibility candidate 2 (CASC2) was originally identified as a downregulated gene in endometrial cancer and acted as a tumor suppressor.

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What Is Known And Objective: The influence of immunosuppression on the response to antiviral therapy (AVT) for recurrent hepatitis C virus (HCV) infection in liver transplant (LT) recipients remains controversial, especially for the rarely investigated genotype 4. This study aims to compare the effects of the two widely used calcineurin inhibitors (CNIs) (cyclosporine A (CsA) and tacrolimus (Tac)) on the therapeutic response to different AVT regimens.

Methods: A prospective, dual-centre, cohort study of 126 Egyptian living donor liver transplant (LDLT) recipients with recurrent HCV genotype 4 infection, who were categorized into three groups according to the AVT used.

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Background And Study Aims: Studies have found increased expression of IL-23 in inflamed and non-inflamed mucosa of patients with ulcerative colitis (UC). We hypothesized that serum interleukin-23 as a non-invasive test has a role in pathogenesis of ulcerative colitis disease and correlates with the disease severity.

Patients And Methods: Forty patients with biopsy proven ulcerative colitis, recruited from Ain Shams University hospitals were included.

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Objective: To assess the diagnostic accuracy and illustrate positive findings of contrast-enhanced fluorine-18 fluoro-D-glucose positron emission tomography/computed tomography (F-FDG PET/CT) image in patients awaiting liver transplantation (LT) with rising alpha-fetoprotein (AFP) after bridge therapy of hepatocellular carcinoma (HCC).

Materials And Methods: This prospective study included 100 patients who were waiting for LT and who previously underwent locoregional therapy (LRT) of HCC. These patients had rising AFP levels on a routine follow-up examination awaiting LT.

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Background/aim: Portal vein tumor thrombosis (PVTT) is a common complication in hepatocellular carcinoma (HCC) and it was considered a relative contraindication for transarterial chemoembolization (TACE) by many centers. This study aimed to assess the outcomes after TACE in patients with branch PVT regarding Child classification, radiological response, and 1-year survival.

Methods: Thirty HCC patients (24 male, 6 females) Child A cirrhotics with branch PVT underwent TACE.

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Background And Aim: The number of loco-regional therapies (LRTs) for hepatocellular carcinoma (HCC) has increased dramatically during the past decade, bridging or downstaging patients on the waiting list for liver transplantation. This study aimed to analyze the outcomes of LRTs prior to living donor liver transplantation in patients with HCC.

Methods: Sixty-two HCC patients received living donor liver transplantation at Ain Shams Center for Organ Transplantation over a 2-year period.

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Aim: To determine risk factors, causative organisms and antimicrobial resistance of bacterial infections following living-donor liver transplantation (LDLT) in cirrhotic patients.

Methods: This prospective study included 45 patients with hepatitis C virus-related end-stage liver disease who underwent LDLT at Ain Shams Center for Organ Transplant, Cairo, Egypt from January 2014 to November 2015. Patients were followed-up for the first 3 mo after LDLT for detection of bacterial infections.

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There is an obvious need to diagnose hepatocellular carcinoma using novel non-invasive and sensitive biomarkers. In this regard, the aim of this study was to evaluate and correlate both relative quantification of microRNA-7 using quantitative real time polymerase chain reaction and quantitative analysis of selenoprotein P using enzyme-linked immunosorbent assay in sera of hepatocellular carcinoma patients, chronic liver disease patients, as well as normal healthy subjects in order to establish a new diagnostic biomarker with a valid non-invasive technique. In addition, this study aimed to investigate whether changes in selenium supply affect microRNA-7 expression and selenoprotein P levels in human hepatocarcinoma cell line (HepG2).

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Aim: To investigate the clinical utility of serum annexin A2 (ANXA2) as a diagnostic marker for early hepatocellular carcinoma (HCC).

Methods: This study was performed in HCC Clinic of Ain Shams University Hospitals, Cairo, Egypt and included: Group 1: Fifty patients with early stage HCC (Barcelona Clinic Liver Cancer stage A); Group 2: Twenty five patients with chronic liver disease; and Control Group: Fifteen healthy, age- and sex-matched subjects who were seronegative for viral hepatitis markers. The following laboratory investigations were done: Viral hepatitis markers [hepatitis B surface antigen and hepatitis C virus (HCV) antibodies], HCV RNA in HCV antibody-positive patients, serum alpha fetoprotein (AFP), and serum ANXA2 levels.

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Aim: To assess the impact of model for end-stage liver disease (MELD) score on patient survival and morbidity post living donor liver transplantation (LDLT).

Methods: A retrospective study was performed on 80 adult patients who had LDLT from 2011-2013. Nine patients were excluded and 71 patients were divided into two groups; Group 1 included 38 patients with a MELD score < 20, and Group 2 included 33 patients with a MELD score > 20.

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Background: Recurrence of HCV after living donor liver transplant (LDLT) is nearly universal, with almost one third of recipients developing cirrhosis and graft failure within 5 years after LDLT. Different studies have been published on the effect of sofosbuvir after liver transplantation on recurrent HCV with different genotypes.

Objectives: The aim of this study was to evaluate the efficacy, safety, and tolerability of sofosbuvir and ribavirin in LDLT recipients with recurrent HCV genotype 4.

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