Publications by authors named "Roni Nasser"

The thiopurine drugs-azathioprine and mercaptopurine-are purine antimetabolites used for the treatment of autoimmune hepatitis. These drugs undergo metabolism through genetically determined pathways, which influences their effectiveness and toxicity. There is scarce information regarding the clinical effects of measuring drug metabolites in these patients.

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Background: Society guidelines on colorectal dysplasia screening, surveillance, and endoscopic management in inflammatory bowel disease (IBD) are complex, and physician adherence to them is suboptimal. We aimed to evaluate the use of ChatGPT, a large language model, in generating accurate guideline-based recommendations for colorectal dysplasia screening, surveillance, and endoscopic management in IBD in line with European Crohn's and Colitis Organization (ECCO) guidelines.

Methods: 30 clinical scenarios in the form of free text were prepared and presented to three separate sessions of ChatGPT and to eight gastroenterologists (four IBD specialists and four non-IBD gastroenterologists).

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In recent years, the status of Internal Medicine has been constantly wearing down. There has been a dramatic decrease in the number of internal medicine students and residents planning to pursue careers in internal medicine. This is mainly due to a higher workload, as well as physical and professional exhaustion leading to work dissatisfaction and provision of suboptimal patient care.

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Article Synopsis
  • Immunoglobulin G4 sclerosing cholangitis (IgG4-SC) is a rare type of cholangitis linked to IgG4-related disease, marked by bile duct thickening and high serum IgG4 levels.
  • Distinguishing IgG4-SC from other conditions like primary sclerosing cholangitis and extra-hepatic cholangiocarcinoma is crucial due to their differing treatments and outcomes.
  • Early and accurate diagnosis is vital, as IgG4-SC responds well to steroid treatment, while delays can result in severe complications and require more invasive procedures.
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Pregnant travellers and their offspring are vulnerable to severe outcomes following a wide range of infections. Vaccine-preventable diseases can have a particularly severe course in pregnant women, but little is known about the safety of travel vaccines in pregnant women. We performed a systematic review of all published literature concerning the safety of vaccines frequently given to travellers such as yellow fever, MMR (mumps, measles and rubella), influenza, Tdap (tetanus, diphtheria and pertussis), meningococcus, hepatitis A and B, rabies, polio, typhoid fever, tick-borne encephalitis and Japanese encephalitis vaccines.

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Background And Purpose: Brain-derived neurotrophic factor (BDNF) is a neuronal growth factor that plays an essential role in the maintenance of the nervous system. We have evaluated the peripheral blood protein levels of BDNF and the valine-to-methionine substitution at codon 66 (Val66Met) single-nucleotide polymorphism (SNP) as potential biomarkers for the early recognition of chemotherapy-induced peripheral neuropathy (CIPN) in non-Hodgkin lymphoma and multiple myeloma patients.

Methods: CIPN was assessed in 45 patients at the diagnosis and during vincristine or bortezomib-based therapy using objective [reduced version of the Total Neuropathy Score (TNSr)] and subjective (FACT-GOG-NTx) tools.

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Article Synopsis
  • - The study investigates how serum magnesium levels affect 30-day mortality in patients with community-acquired pneumonia (CAP), a widespread illness that impacts millions globally.
  • - An analysis of 3,851 hospitalized patients revealed that both low (hypomagnesemia) and high (hypermagnesemia) magnesium levels at admission significantly increased the risk of death within 30 days, while normal magnesium levels correlated with lower mortality rates.
  • - Interestingly, among normal magnesium levels, those at the higher end (2-2.4 mg/dl) had a higher mortality rate (30.3%) than those with slightly lower normal levels (1.35-2.0 mg/dl at 12.9%).
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Background: Acute exacerbation of COPD (AECOPD) is one of the leading causes for hospitalization and readmission in developed countries. No laboratory indices were consistently found to be associated with readmission risk. Recent evidence attests that red blood cell distribution width (RDW), conveys important information for short and long term prognosis in a variety of medical conditions.

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A 56-year-old man with lymphoma developed orchitis followed by septic arthritis of his right glenohumeral joint. Synovial fluid cultures were negative but PCR amplification test was positive for The patient was treated with doxycycline. Two and a half years later, the patient presented with shortness of breath and grade III/IV diastolic murmur on auscultation.

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Background: Community acquired pneumonia is a major cause of morbidity and mortality. The association between serum phosphorus levels on admission and the outcome of patients with community acquired pneumonia has not been widely examined. We aimed to investigate the prognostic value of serum phosphorus levels on admission on the 30- day mortality.

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