Publications by authors named "Hillel Alapi"

Article Synopsis
  • - The study examined the clinical relevance of abnormal free light chain (FLC) test results in patients who show non-specific symptoms but have no known plasma cell dyscrasia (PCD) or lymphoproliferative disease (LPD), analyzing data from 8,661 patients tested between 2007-2023.
  • - Researchers categorized FLC ratios into normal, slightly abnormal, moderately abnormal, and significantly abnormal, finding that a significant portion of patients with abnormal results were later diagnosed with PCD or LPD within a median follow-up of 52 months.
  • - The findings indicated that abnormal FLC ratios are strong indicators for diagnosing PCD/LPD, highlighting the importance of these tests for early detection, even when
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Background: Whole exome sequencing (WES) furthered our understanding of various tumors. We assessed the occurrence of germline likely pathogenic/pathogenic (LP/P) variants, disease features, and clinical outcomes in early-onset prostate cancer.

Methods: This retrospective study (N = 134) included consecutive prostate cancer patients who donated blood samples for research purposes to the Kahn-Sagol-Maccabi biobank.

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Introduction: Haemato-oncologic patients are more susceptible to severe infections with SARS-CoV-2. We aimed to assess the clinical outcomes of SARS-CoV-2 infection among patients with Mycosis Fungoides and Sezary Syndrome (MF/SS).

Methods: The data were retrieved from anonymized electronic medical records of Maccabi Healthcare Services (MHS), the second-largest healthcare organization in Israel.

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Pregnancies following diagnosis of chronic lymphocytic leukemia (CLL) are rare events, mainly because the disease is typically diagnosed in the elderly. Literature on the topic is based only on case reports, and limited data are available on the influence of pregnancy on CLL course. In this retrospective study, we aimed to summarize the clinical and laboratory course of 10 women with CLL who became pregnant.

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BACKGROUNDCircadian rhythms are evident in basic immune processes, but it is unclear if rhythms exist in clinical endpoints like vaccine protection. Here, we examined associations between COVID-19 vaccination timing and effectiveness.METHODSWe retrospectively analyzed a large Israeli cohort with timestamped COVID-19 vaccinations (n = 1,515,754 patients over 12 years old, 99.

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Background: Waning of protection against infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) conferred by 2 doses of the BNT162b2 vaccine begins shortly after inoculation and becomes substantial within 4 months. With that, the impact of prior infection on incident SARS-CoV-2 reinfection is unclear. Therefore, we examined the long-term protection of naturally acquired immunity (protection conferred by previous infection) compared to vaccine-induced immunity.

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The BNT162b2 COVID-19 vaccine has been shown to reduce viral load of breakthrough infections (BTIs), an important factor affecting infectiousness. This viral-load protective effect has been waning with time post the second vaccine and later restored with a booster shot. It is currently unclear though for how long this regained effectiveness lasts.

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Background: There is insufficient evidence regarding the magnitude and durability of protection conferred by a combined effect of naturally acquired immunity after SARS-CoV-2 infection and vaccine-induced immunity.

Objective: To compare the incidence rate of SARS-CoV-2 reinfection in previously infected persons to that of previously infected persons who subsequently received a single dose of BNT162b2 messenger RNA vaccine.

Design: A retrospective cohort study emulating a randomized controlled target trial through a series of nested trials.

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The effectiveness of the coronavirus disease 2019 (COVID-19) BNT162b2 vaccine in preventing disease and reducing viral loads of breakthrough infections (BTIs) has been decreasing, concomitantly with the rise of the Delta variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, it is unclear whether the observed decreased effectiveness of the vaccine in reducing viral loads is inherent to the Delta variant or is dependent on time from immunization. By analyzing viral loads of over 16,000 infections during the current, Delta-variant-dominated pandemic wave in Israel, we found that BTIs in recently fully vaccinated individuals have lower viral loads than infections in unvaccinated individuals.

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Objectives: The aim of this study was to assess the direct medical cost of treating major chronic illnesses in Maccabi Healthcare Services, a 1.8 million member health maintenance organization in Israel.

Methods: Direct medical costs were calculated for each member in 2006.

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