Publications by authors named "Samir Amer"

A low-grade oncocytic tumor of the kidney (LOT) is a distinctive entity categorized under the 2022 World Health Organization (WHO) classification as "Other oncocytic tumors of the kidney." It represents a unique subset of oncocytic tumors, distinct from oncocytoma and chromophobe renal cell carcinoma. Characterized by bland oncocytic cells that diffusely express CK7 and lack CD117 expression, LOT typically manifests as a solitary, small lesion with a low stage.

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Myofibroma (MF) is a benign neoplasm derived from myofibroblasts. While they are infrequent, these tumors are predominantly found in the pediatric group and seldom manifest as intraosseous mandibular tumors. Herein, we present a 9-year-old female with a radiolucent lesion in the left mandible associated with malposed left lower canine and 1st premolar teeth.

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Article Synopsis
  • * A study analyzed 21 cases of CGCG at Temple University Hospital from 2015 to 2022, focusing on patient demographics, symptoms, and diagnostic methods such as X-ray imaging and histological examination using H&E staining.
  • * Findings revealed that the majority of cases affected the mandible (81%), many were asymptomatic (62%), and symptomatic cases commonly exhibited pain and fullness; differential diagnoses included brown
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Article Synopsis
  • Sclerosing epithelioid fibrosarcoma (SEF) is a very rare type of cancer, primarily affecting the deep soft tissues of the lower body, with limited occurrences in the head and neck region, particularly the oral and maxillofacial area.
  • A case study of a 52-year-old man revealed a radiolucent lesion near his left lower molar, initially mistaken for a common dental issue, discovered to be SEF after he had a history of the tumor in his skull.
  • The study emphasizes that SEF should be considered in the differential diagnosis for high-grade tumors in the oral region, highlighting the significance of immunohistochemical stains like MUC-4 for
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Objectives: The first goal of this study was to synthesize the silver nanoparticles Alcaligenes xylosoxidans exopolysaccharide (Ag-AXEPS). The second objective was to analyse the role of Ag-AXEPS nanoparticles (NPS) in treating bleomycin (BLM)-induced lung fibrosis.

Methods: Intratracheal bleomycin (2.

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Primary toxicity targets of alcohol and its metabolites in the pancreas are cellular energetics and endoplasmic reticulum (ER). Therefore, the role of AMP-Activated Protein Kinase (AMPKα) in amelioration of ethanol (EtOH)-induced pancreatic acinar cell injury including ER/oxidative stress, inflammatory responses, the formation of fatty acid ethyl esters (FAEEs) and mitochondrial bioenergetics were determined in human pancreatic acinar cells (hPACs) and AR42J cells incubated with/without AMPKα activator [5-aminoimidazole-4-carboxamide ribonucleotide (AICAR)]. EtOH treated hPACs showed concentration and time-dependent increases for FAEEs and inactivation of AMPKα, along with the upregulation of ACC1 and FAS (key lipogenic proteins) and downregulation of CPT1A (involved β-oxidation of fatty acids).

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Ethanol (EtOH) metabolism itself can be a predisposing factor for initiation of alcoholic liver disease (ALD). Therefore, a dose dependent study to evaluate liver injury was conducted in hepatic alcohol dehydrogenase (ADH) deficient (ADH) and ADH normal (ADH) deer mice fed 1%, 2% or 3.5% EtOH in the liquid diet daily for 2 months.

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Introduction: Plexiform schwannoma is a rare variant of schwannoma that accounts for only 5% of all schwannomas. Herein, we present a rare case of plexiform schwannoma of the tongue in a pediatric patient with neurofibromatosis type 2 (NF2).

Case Presentation: A 13-year-old female presented with a growing left-sided tongue mass.

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The single most common cause of chronic pancreatitis (CP, a serious inflammatory disease) is chronic alcohol abuse, which impairs hepatic alcohol dehydrogenase (ADH, a major ethanol oxidizing enzyme). Previously, we found ~5 fold greater fatty acid ethyl esters (FAEEs), and injury in the pancreas of hepatic ADH deficient (ADH) vs. hepatic normal ADH (ADH) deer mice fed 3.

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Background: Chronic alcohol abuse, a major risk factor for such diseases as hepatitis and cirrhosis, impairs hepatic alcohol dehydrogenase (ADH; key ethanol [EtOH]-metabolizing enzyme). Therefore, differentially altered hepatic and plasma proteomes were identified in chronic EtOH feeding model of hepatic ADH-deficient (ADH ) deer mice to understand the metabolic basis of alcoholic liver disease (ALD).

Methods: ADH deer mice were fed 3.

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Objectives: The aim of this study was to identify differentially expressed proteins in the pancreatic tissue of hepatic alcohol dehydrogenase-deficient deer mice fed ethanol to understand metabolic basis and mechanism of alcoholic chronic pancreatitis.

Methods: Mice were fed liquid diet containing 3.5 g% ethanol daily for 3 months, and differentially expressed pancreatic proteins were identified by protein separation using 2-dimensional gel electrophoresis and identification by mass spectrometry.

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Three series of benzothiophene derivatives were designed and synthesized as cytotoxic agents. The compounds were subjected to in vitro antitumor screening at the National Cancer Institute (NCI), Bethesda, MD. The results of the single dose screening indicated that only the benzothieno[3,2-b]pyran series 3a-f exhibited potent and broad spectrum cytotoxic activity and was subjected to five dose cytotoxic screening.

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Canine gastric mucosal cyclic AMP content was determined at 1, 5, 30, 60, and 120 min after commencing a 2-hr continuous intravenous infusion of histamine of sufficient dose to elicit a brisk acid secretory response from the dog stomach. The increase in acid output was significant at 30 min and stabilized at the stimulated level for the duration of histamine infusion. By contrast, there was no significant increase in mucosal cyclic AMP content at any time of measurement.

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