חדשות המחקר
Andrei Braester, Alexander Shturman, Bennidor Raviv, Lev Dorosinsky, Eyal Rosental, Shaul Atar: What a Family Doctor Should Know about Incidental Finding of High Mean Platelet Volume, Metabolic Syndrome, and Pre-diabetes (Isr Med Assoc J . )
Mean platelet volume (MPV), an essential component of the complete blood count (CBC) indices, is underutilized in common practice. In recent years, MPV has drawn strong interest, especially in clinical research. During inflammation, the MPV has a higher value because of platelet activation.
This study verifies whether high MPV values discovered incidentally in healthy naïve patients indicates the development or the presence of cardiovascular risk factors, particularly metabolic syndrome and pre-diabetes.
Khalaf Kridin: Lichen Planus (Front Med (Lausanne) .)
Lichen planus (LP) is a T cell-mediated disease affecting the stratified squamous epithelia of the skin and/or mucus membrane. Histologically, the disease is characterized by a lichenoid inflammatory infiltrate and vacuolar degeneration of the basal layer of the epidermis...
Omry Koren: Reporting guidelines for human microbiome research: the STORMS checklist (Nat Med . )
The particularly interdisciplinary nature of human microbiome research makes the organization and reporting of results spanning epidemiology, biology, bioinformatics, translational medicine and statistics a challenge. Commonly used reporting guidelines for observational or genetic epidemiology studies lack key features specific to microbiome studies. Therefore, a multidisciplinary group of microbiome epidemiology researchers adapted guidelines for observational and genetic studies to culture-independent human microbiome studies, and also developed new reporting elements for laboratory, bioinformatics and statistical analyses tailored to microbiome studies. The resulting tool, called 'Strengthening The Organization and Reporting of Microbiome Studies' (STORMS), is composed of a 17-item checklist organized into six sections that correspond to the typical sections of a scientific publication, presented as an editable table for inclusion in supplementary materials. The STORMS checklist provides guidance for concise and complete reporting of microbiome studies that will facilitate manuscript preparation, peer review, and reader comprehension of publications and comparative analysis of published results.
Mohammad E Naffaa, Fadi Hassan, Avivit Golan-Cohen, Ilan Green, Amir Saab, Ziv Paz: Factors associated with drug survival on first biologic therapy in patients with rheumatoid arthritis: a population-based cohort study (Rheumatol Int . )
Lack of sufficient head-to-head trials comparing biologic disease-modifying antirheumatic drugs (bDMARDs) in rheumatoid arthritis (RA), makes the choice of the first bDMARD a matter of rheumatologist's preference. Longer drug survival on the first bDMARD usually correlates with early remission. We aimed to identify factors associated with longer drug survival
Hava Gil-Henn: Inhibition of Vasculogenic Mimicry and Angiogenesis by an Anti-EGFR IgG1-Human Endostatin-P125A Fusion Protein Reduces Triple Negative Breast Cancer Metastases (Cells .)
Triple negative breast cancer (TNBC) is an aggressive breast cancer subtype with limited therapeutic options. Metastasis is the major cause of TNBC mortality. Angiogenesis facilitates TNBC metastases. Many TNBCs also form vascular channels lined by tumor cells rather than endothelial cells, known as 'vasculogenic mimicry' (VM). VM has been linked to metastatic TNBC behavior and resistance to anti-angiogenic agents. Epidermal growth factor receptor (EGFR) is frequently expressed on TNBC, but anti-EGFR antibodies have limited efficacy. We synthesized an anti-EGFR antibody-endostatin fusion protein, αEGFR IgG1-huEndo-P125A (αEGFR-E-P125A), designed to deliver a mutant endostatin, huEndo-P125A (E-P125A), to EGFR expressing tumors, and tested its effects on angiogenesis, TNBC VM, and motility in vitro, and on the growth and metastasis of two independent human TNBC xenograft models in vivo
Elon Glassberg: Sub-cutaneous Pfizer/BioNTech COVID-19 vaccine administration results in seroconversion among young adults (Vaccine. )
Route of vaccine administration plays a role in extent and quality of immunogenicity. 790 military personnel accidentally received the first of two doses of Pfizer/BioNTech mRNA anti Covid-19 vaccine using a needle intended for subcutaneous administration. A serological blood test (on day 21, prior to the second intramuscular dose) was performed, analyzing whether immunological response was elicited. 98.2% demonstrated seroconversion. IgG titers were negatively correlated with age and did not correlate with BMI. Our results could help reassure providers confronted with a similar mistake and may even imply a possibly new and effective administration route.
Elon Glassberg, Avi Benov: Low-Titer Group O Whole-Blood Resuscitation in the Prehospital Setting in Israel: Review of the First 2.5 Years' Experience (Transfus Med Hemother .)
The Israeli Defense Forces Medical Corps (IDF-MC) implemented the use of low-titer group O whole blood (LTOWB) as the first-choice resuscitation fluid in the IDF airborne Combat Search and Rescue Unit (IDF-CSAR) for aerial evacuation of both military and civilian casualties in June 2018 for injured patients with hemorrhagic shock and at least one of the following: systolic blood pressure <90 mm Hg, heart rate >130 beats/min, deterioration of consciousness without head injury or hemoglobin concentration ≤7 g/dL.
Yasmin Ghantous, Imad Abu El-Naaj: A robust and interpretable gene signature for predicting the lymph node status of primary T1/T2 oral cavity squamous cell carcinoma (Int J Cancer .)
Oral cavity squamous cell carcinoma (OSCC) affects more than 30,000 individuals in the US annually, with smoking and alcohol consumption being the main risk factors. Management of early stage tumors usually includes surgical resection followed by postoperative radiotherapy in certain cases. The cervical lymph nodes (LN) are the most common site for local metastasis and elective neck dissection is usually performed if the primary tumor thickness is greater than 3.5 mm. However, postoperative histological examination often reveals that many patients with early stage disease are negative for neck nodal metastasis, posing a pressing need for improved risk stratification to either avoid over-treatment or prevent the disease progression. To this end, we aimed to identify a primary tumor gene signature that can accurately predict cervical LN metastasis in patients with early stage OSCC.
Sondra Turjeman, Omry Koren: ARGuing the case for (or against) probiotics (Trends Microbiol .)
Antibiotic resistance is one of the leading medical challenges with which we are currently faced. Antibiotics, while powerful medical tools, also wreak havoc on the endogenous microbiota. Many believe that probiotics can restore the microbiota following antibiotic treatment and might even suppress the spread of antibiotic-resistance genes, but a recent study (Montassier et al.) suggests otherwise.
Boris Fichtman, Amnon Harel: Generation and characterization of iPSC lines from two nuclear envelopathy patients with a homozygous nonsense mutation in the TOR1AIP1 gene (Stem Cell Res . )
AP1 is an inner nuclear membrane protein encoded by TOR1AIP1. A homozygous c.961C > T loss of function mutation in TOR1AIP1 that affects both isoforms of LAP1 was recently described. This mutation leads to the development of a severe multisystemic nuclear envelopathy syndrome. Here we describe the generation and characterization of two human induced pluripotent stem cell (hiPSC) lines derived from skin fibroblasts of two patients carrying the homozygous c.961C > T mutation. These novel lines can be used as a powerful tool to investigate the molecular mechanism by which LAP1 deficiency leads to the development of this severe hereditary disorder.
Amitai Bickel, Soliman Khatib, Eli Kakiashvilli, Eilam Palzur: Reappraisal of ischemia-reperfusion injury in a short duration laparoscopic surgery, a pilot study (BMC Surg . )
Serum biochemical changes during laparoscopic surgery and positive pressure pneumoperitoneum (PP) may reflect mild oxidative stress due to the ischemia-reperfusion (I/R) mechanism. However, there is still a controversy regarding the exact mechanism of PP in creating oxidative stress and whether the induction of PP causes I/R effects at all. To elucidate this debated issue, we studied, for the first time, the changes of I/R parameters in the serum, in a pilot study, during laparoscopic cholecystectomy using a reliable, independent exogenous oxidative biomarker, together with common intrinsic biomarkers of oxidative stress.
Adi Eshel, Omry Koren: Modifications in the Intestinal Functionality, Morphology and Microbiome Following Intra-Amniotic Administration ( Gallus gallus) of Grape ( Vitis vinifera) Stilbenes (Resveratrol and Pterostilbene) (Nutrients .)
This efficacy trial evaluated the effects of two polyphenolic stilbenes, resveratrol and pterostilbene, mostly found in grapes, on the brush border membrane functionality, morphology and gut microbiome. This study applied the validated Gallus gallus intra-amniotic approach to investigate the effects of stilbene administration versus the controls.
Ron Golan: Continuous Remote Patient Monitoring Shows Early Cardiovascular Changes in COVID-19 Patients (J Clin Med . )
COVID-19 exerts deleterious cardiopulmonary effects, leading to a worse prognosis in the most affected. This retrospective multi-center observational cohort study aimed to analyze the trajectories of key vitals amongst hospitalized COVID-19 patients using a chest-patch wearable providing continuous remote patient monitoring of numerous vital signs.