Publications by authors named "N Samel"

Point-of-care ultrasound (POCUS) is changing the practice of nearly all specialties and is increasingly being incorporated as a bedside tool by more gastroenterologists and hepatologists. POCUS is most often used to answer focused clinical questions, supplement the traditional physical examination, and guide performance of invasive bedside procedures. This review describes several common POCUS applications used in gastroenterology and hepatology, as well as some novel applications that warrant further investigation.

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Article Synopsis
  • The study investigates how certain processes in B-cell development can lead to adult B-cell progenitor acute lymphoblastic leukemia (BCP-ALL), particularly focusing on Irf4 mice which are more likely to develop this condition as they age.
  • It was found that preB-I cells in these mice show poor differentiation but increased proliferation when exposed to IL-7, alongside a decreased ability to stay in the bone marrow due to lower responsiveness to CXCL12.
  • The research also suggests that mutations in Jak3, linked to abnormal activation of AID, contribute to the cancer's development, and treating with Ruxolitinib extended the survival of leukemia-affected mice by targeting JAK signaling effects.
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Aim: Left-sided colonic serrated adenomas (L-SAs) were evaluated for aneuploidy using automated imaging cytometry to quantify DNA content and compared with normal colonic tissues (NCT), tubular adenomas (TA), left-sided hyperplastic polyps (L-HP) and adenocarcinomas.

Materials & Methods: We used standard paraffin-embedded Feulgen-stained tissue sections.

Results: The mean DNA index (DI) of NCT was 0.

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Pancreatic lipase (PNLIP) is a digestive enzyme that is a potential drug target for the treatment of obesity. A better understanding of its regulation mechanisms would facilitate the development of new therapeutics. Recent studies indicate that intestinal lipolysis by PNLIP is reduced by Angiopoietin-like protein 4 (ANGPTL4), whose N-terminal domain (nANGPTL4) is a known inactivator of lipoprotein lipase (LPL) in blood circulation and adipocytes.

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