Publications by authors named "Shehab M"

Obesity and type 2 diabetes (T2D) are associated with significant alterations in various metabolic biomarkers. Isthmin-1 (Ism1) has recently emerged as a potential marker of metabolic health and was shown in animal studies to associate with metabolic-associated fatty liver disease (MAFLD). In this study, we aimed to investigate the circulatory levels of Ism1 in individuals with obesity compared to non-obese individuals and evaluate their association with insulin resistance, MAFLD, and T2D.

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Objective: The primary objective of this study is to quantify the incidence of stroke following cardiac surgery over 17 years at our centre. Additionally, we evaluated the potential risk factors leading to postoperative stroke in these patients.

Methods: Patient characteristics and perioperative data were collected for 24,412 patients undergoing surgery at our centre between January 2005 and December 2021.

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Background: Novel colorectal cancer endoscopic surveillance techniques for inflammatory bowel disease (IBD) have recently been developed.

Aims: Compare the efficacy of currently available techniques for dysplasia detection in colonic IBD.

Methods: We conducted a systematic literature search from inception to March 2024 for randomized controlled trials (RCTs) or prospective cohort studies enrolling adults with IBD and having surveillance colonoscopy for dysplasia screening.

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Platelets are hyperactive in patients with type2 diabetes (T2DM), they adhere to vascular endothelium and play a key role in macrovascular complications. Platelets activity can be measured by flow-cytometry (cluster of differentiation (CD) 41, CD 42, CD 62, CD 63), which allows detection of surface antigens in a sensitive and specific manner. This study aimed to describe platelets activity in T2DM in association with cardiovascular and cerebrovascular complications in relation to duration of diabetes (DM).

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Introduction: Biologic therapies treat patients with moderate to severe inflammatory bowel disease (IBD). This study aims to investigate the demographics of biologic therapy use and its association with patient characteristics, a topic that has not yet been thoroughly assessed in our region.

Methods: Electronic health record data from June 1, 2021, to May 31, 2023, were collected at a tertiary care IBD center in Kuwait.

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Biomass is a key element in biofuels which can be defined as a fuel produced through contemporary biological processes, and its increased use can support the EU's aims of reducing greenhouse gas emissions. Information on the nature and the quality of the biomass or biofuel is important in order to support the optimization of their combustion with respect to realizing higher efficiencies and lower emissions during energy production. Three reference materials were produced by a collaborative approach among national metrology institutes and designated institutes within the scope of the EMPIR project: BIOFMET.

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Article Synopsis
  • The study investigates Dipeptidyl peptidase-4 (DPP4) enzyme activities in young individuals diagnosed with type 2 diabetes mellitus (T2DM) compared to those with normal glucose tolerance (NGT).
  • It involved 29 young participants with untreated T2DM and 29 participants with NGT, measuring various health metrics and DPP4 enzyme activity levels.
  • Results showed that T2DM participants had significantly higher DPP4 activity than those with NGT, suggesting a potential link between elevated DPP4 levels and youth-onset T2DM.
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  • A study was conducted to evaluate the effectiveness of biologic therapies in treating inflammatory bowel disease (IBD) patients in the Middle East, focusing on biologic-naïve individuals.
  • The research analyzed records of 422 patients treated with different biologics (adalimumab, infliximab, ustekinumab, vedolizumab) over a period from October 2017 to October 2023, measuring outcomes like hospitalizations, surgeries, and remission rates.
  • Results showed that biologics were effective in achieving remission for both Crohn's disease and ulcerative colitis, indicating that their efficacy in this region is comparable to that seen in Western populations.*
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Cardiovascular complications represent a significant health concern for individuals with diabetes mellitus. The relationship between diabetes and cardiovascular diseases is complex and multifaceted, involving a variety of pathophysiological mechanisms. This study aimed to investigate the potential role of the cardiothoracic ratio as a prognostic tool for cardiovascular disorders in patients with diabetes.

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  • - This study examined the use of tunneled dialysis catheters (TDC) in chronic hemodialysis patients, focusing on their frequency of dysfunction and replacement over five years.
  • - Out of 625 TDC inserted, 37.4% (234) had to be replaced due to dysfunction, with diabetes identified as a significant predictor of TDC issues.
  • - The findings emphasize the growing use of TDC in dialysis, the problem of dysfunction, and the necessity for ongoing research to enhance dialysis access and catheter performance.
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Background & Aims: Treatment options for moderate to severe ulcerative colitis (UC) are increasing rapidly, but the lack of comparative efficacy trials makes treatment choices a clinical challenge. This network-meta-analysis aimed to compare the relative efficacy of biologics and small molecules in achieving remission in patients with moderate to severe UC.

Methods: The literature was searched up to May 2024.

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Introduction: Advancements in endovascular therapy, especially in complex aortic procedures, underscore the need for additional post-certification training. Dedicated post-residency vascular fellowship programs offer exposure to diverse cases, research opportunities, and professional networking. The study aims to describe and present outcomes from the complex aortic fellowship program at the Vascular Surgery Department of the Uppsala University Hospital.

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Article Synopsis
  • Ulcerative colitis (UC) is a chronic condition that significantly affects patients' quality of life, making it important to focus on treatment efficacy beyond just clinical measures.
  • This study conducted a systematic review and network meta-analysis to assess the effectiveness of various biologics and small molecule therapies on patient-reported outcomes (PRO) and quality of life in UC patients.
  • Results indicated that upadacitinib was the most effective treatment for achieving clinical remission, while guselkumab showed the best improvement in quality of life as measured by the Inflammatory Bowel Disease Questionnaire.
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  • Crohn's disease (CD) is a chronic inflammatory bowel disease that requires a multidisciplinary management approach, particularly when dealing with fistulizing CD which poses significant treatment challenges.
  • The review discusses the different manifestations, impact on quality of life, and current management strategies for fistulizing CD, highlighting both traditional therapies and cutting-edge treatments being researched.
  • Antibiotics and biologics like infliximab are common initial treatments, but many patients develop resistance, leading to alternative therapies such as adalimumab, novel small-molecule drugs, and stem cell therapies, alongside surgical options for more complex cases.
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Ustekinumab has been shown to be effective in inducing and maintain clinical and endoscopic remission in Crohn disease (CD). We aim to assess whether ustekinumab trough levels are associated with improved outcomes in CD in real-life. We recruited patients with CD who were treated with ustekinumab for at least 6 months from January 2017 to June 2023.

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Background: Stroke in young patients results in disproportionately high societal cost given the productive life-years lost. Little is known about stroke in young Egyptian patients. We aimed to analyze clinicodemographic characteristics, functional outcome, and socioeconomic impact of ischemic stroke among young Egyptian adults.

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Introduction: Thoracic endovascular aortic repair (TEVAR) in chronic dissection is associated with a risk for distal stent-graft-induced new entry (dSINE) in up to a quarter of cases. We assess the mid-term outcome of a novel dissection-specific stent-graft (DSSG), which is a custom-made device based on the Cook Alpha platform, with a modified graft design and a distal endovascular elephant trunk without any supporting stent to reduce the radial force on the dissection membrane at the distal landing zone.

Methods: A retrospective single-center study of chronic dissection patients at high risk of dSINE who received an elective endovascular repair with DSSG from January 2017 to June 2023.

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Background: Incidence of body contouring surgeries (BCS) rose significantly to overcome problems resulted from post-Bariatric Surgery (BS). We aimed to evaluate satisfaction level and quality of life (QOL) in patients' post-BCS.

Methods: In this retrospective prospective study, patients who underwent BCS in Plastic Surgery Department, Salmaniya Medical Complex, Bahrain, in 2017-2018, were enrolled.

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Background: Patients with insulin-treated diabetes struggle with performing accurate carbohydrate counting for proper blood glucose control. Little is known about the comparative accuracy and feasibility of carbohydrate counting methods.

Purpose: The purpose of this study was to determine whether carbohydrate counting using a smartphone application is more accurate and feasible than a traditional method.

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Article Synopsis
  • Hepatitis B virus (HBV) infection can worsen chronic conditions like hepatitis and cirrhosis, and patients with inflammatory bowel disease (IBD) on biologic therapies may face increased risk of HBV reactivation.
  • A study was conducted to compare HBV vaccination effectiveness between ulcerative colitis (UC) patients treated with infliximab (IFX) and those on 5-aminosalicylic acid (5-ASA).
  • Results showed that patients on 5-ASA had significantly higher HBV antibody levels, making them more likely to respond effectively to the vaccine, highlighting the need for increased HBV vaccination effort prior to starting IFX therapy.*
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The Epstein-Barr virus has been associated with a considerable number of autoimmune diseases. We have previously demonstrated that EBV DNA enhances the production of IL-17A, a pro-inflammatory cytokine, via endosomal Toll-like receptor signalling. We used RNA-seq to analyze the transcriptional profile of mouse immune cells treated with EBV DNA.

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  • Sulfur dioxide (SO) is a harmful gas primarily produced by power plants and fossil fuel use, posing serious health and environmental threats.
  • Benzimidazole-linked polymers (BILPs) have shown promise as effective materials for capturing SO due to their stability and unique chemical properties, achieving high uptake rates of up to 8.5 mmol g under specific conditions.
  • The study demonstrates that BILPs have strong interactions with SO, enabling efficient adsorption and easy regeneration, along with high selectivity for SO over other gases like carbon dioxide and methane, suggesting their potential use in reducing SO emissions from various sources.
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Background: Chemosensory changes that occur during chemotherapy can significantly impact food enjoyment, quality of life and recovery.

Aim: To investigate chemosensory changes reported by oncology patients during chemotherapy.

Methods: A mixed-method cross-sectional study design was used to explore 100 cancer patients' experiences of chemosensory changes during chemotherapy.

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Rechargeable sodium batteries hold great promise for circumventing the increasing demand for lithium-ion batteries (LIBs) and the limited supply of lithium. However, efficient sodium ion storage remains a great impediment in this field. In this study, we report the designed synthesis of a multifunctional two-dimensional covalent organic framework featuring hexaazatrinaphthalene cores linked by imidazole moieties and demonstrate its effective performance in sodium ion storage.

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