Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 4 de 4
Filter
Add more filters











Database
Language
Publication year range
1.
Pediatr Blood Cancer ; 71(11): e31259, 2024 Nov.
Article in English | MEDLINE | ID: mdl-39118249

ABSTRACT

INTRODUCTION: Precision in surgical documentation is essential to avoid miscommunication and errors in patient care. Synoptic operative reports are more precise than narrative operative reports, however they have not been widely implemented in pediatric surgical oncology. To assess the need for implementation of synoptic operative reports in pediatric surgical oncology, we examined the completeness of narrative operative reports in patients undergoing resection of Wilms tumor. METHODS: We conducted a retrospective review of narrative operative reports for resection of Wilms tumor at a single pediatric oncology center from January 2022 through July 2023. Primary outcomes were the presence or absence of 11 key operative report components. Inclusion rates were calculated as simple percentages. Unilateral and bilateral operations were considered. RESULTS: Thirty-five narrative reports for Wilms tumor resection were included. The most consistently documented operative report components were estimated blood loss, indication for surgery, intraoperative complications, and specimen naming (100% documentation rates). Documentation of lymph node sampling was present in 94.3% of reports. The least consistently documented components were assessment of intraoperative tumor spillage, completeness of resection, metastatic disease, and assessment of vascular involvement (each ≤40% documentation rate). All 11 key components were documented in three reports. CONCLUSIONS: Even at a large tertiary pediatric oncology referral center, narrative operative reports for pediatric Wilms tumor resection were found to be frequently missing important components of surgical documentation. Often, these were omissions of negative findings. Utilization of synoptic operative reports may be able to reduce these gaps.


Subject(s)
Kidney Neoplasms , Wilms Tumor , Humans , Wilms Tumor/surgery , Wilms Tumor/pathology , Retrospective Studies , Kidney Neoplasms/surgery , Kidney Neoplasms/pathology , Child , Female , Male , Consensus , Prognosis , Follow-Up Studies , Child, Preschool , Documentation/standards , Documentation/statistics & numerical data
2.
Blood Cancer Discov ; 4(1): 34-53, 2023 01 06.
Article in English | MEDLINE | ID: mdl-36350827

ABSTRACT

Distal enhancers play critical roles in sustaining oncogenic gene-expression programs. We identify aberrant enhancer-like activation of GGAA tandem repeats as a characteristic feature of B-cell acute lymphoblastic leukemia (B-ALL) with genetic defects of the ETV6 transcriptional repressor, including ETV6-RUNX1+ and ETV6-null B-ALL. We show that GGAA repeat enhancers are direct activators of previously identified ETV6-RUNX1+/- like B-ALL "signature" genes, including the likely leukemogenic driver EPOR. When restored to ETV6-deficient B-ALL cells, ETV6 directly binds to GGAA repeat enhancers, represses their acetylation, downregulates adjacent genes, and inhibits B-ALL growth. In ETV6-deficient B-ALL cells, we find that the ETS transcription factor ERG directly binds to GGAA microsatellite enhancers and is required for sustained activation of repeat enhancer-activated genes. Together, our findings reveal an epigenetic gatekeeper function of the ETV6 tumor suppressor gene and establish microsatellite enhancers as a key mechanism underlying the unique gene-expression program of ETV6-RUNX1+/- like B-ALL. SIGNIFICANCE: We find a unifying mechanism underlying a leukemia subtype-defining gene-expression signature that relies on repetitive elements with poor conservation between humans and rodents. The ability of ETV6 to antagonize promiscuous, nonphysiologic ERG activity may shed light on other roles of these key regulators in hematolymphoid development and human disease. See related commentary by Mercher, p. 2. This article is highlighted in the In This Issue feature, p. 1.


Subject(s)
Core Binding Factor Alpha 2 Subunit , Precursor B-Cell Lymphoblastic Leukemia-Lymphoma , Humans , Core Binding Factor Alpha 2 Subunit/genetics , Core Binding Factor Alpha 2 Subunit/metabolism , Transcriptional Activation , Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/genetics , Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/metabolism , Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/pathology , Transcriptome , Microsatellite Repeats , Transcriptional Regulator ERG/genetics , Transcriptional Regulator ERG/metabolism
3.
Brain Spine ; 2: 100916, 2022.
Article in English | MEDLINE | ID: mdl-36248118

ABSTRACT

Smoking is a major cause of morbidity and mortality worldwide and is responsible for the death of more than 8 million people per year globally. Through a systematic literature review, we aim to review the harmful effects of tobacco smoking on degenerative spinal diseases (DSD). DSD is a debilitating disease and there is a need to identify if smoking can be an attributable contender for the occurrence of this disease, as it can open up avenues for therapeutic options. Sources such as PubMed and Embase were used to review literature, maintaining tobacco smoking and spinal diseases as inclusion factors, excluding any article that did not explore this relationship. Risk of bias was assessed using analysis of results, sample size and methods and limitations. Upon review of the literature, tobacco smoking was found to be a major risk factor for the occurrence of DSDs, particularly lumbar spinal diseases. Smokers also experienced a greater need for surgery and greater postoperative wound healing complications, increased pain perception, delay in recovery and decreased satisfaction after receiving surgery. These effects were noted along the entire spine. Many mechanisms of action have been identified in the literature that provide plausible pictures of how smoking leads to spinal degeneration, exploring possible primary targets which can open up opportunities to develop potential therapeutic agents. More studies on cervical and thoracic spinal degeneration would be beneficial in identifying the effect of nicotine on these spinal levels. Some limitations included insufficient sample size, inconclusive evidence and lack of sufficient repeat studies. However, there appears to be a sufficient amount of research on smoking directly contributing to lumbar spinal pathology.

4.
Invest Ophthalmol Vis Sci ; 61(8): 17, 2020 07 01.
Article in English | MEDLINE | ID: mdl-32663289

ABSTRACT

Purpose: The orbit displays unique vulnerability to inflammatory conditions. The most prevalent of these conditions, thyroid eye disease (TED), occurs in up to 50% of patients with Graves' disease (GD). Whereas the pathology of both TED and GD is driven by autoantibodies, it is unclear why symptoms manifest specifically in the orbit. Methods: We performed retinoic acid treatment on both normal and TED patient-derived orbital fibroblasts (OFs) followed by mRNA and protein isolation, quantitative real-time polymerase chain reaction (qRT-PCR), enzyme-linked immunosorbent assay, RNA sequencing, and Western blot analyses. Results: Both normal and TED patient-derived OFs display robust induction of monocyte chemoattractant protein 1 (MCP-1) upon retinoid treatment; TED OFs secrete significantly more MCP-1 than normal OFs. In addition, pretreatment of OFs with thiophenecarboxamide (TPCA-1) inhibits retinoid-induced MCP-1 induction, suggesting an NF-κB (nuclear factor kappa-light-chain-enhancer of activated B cells)-dependent mechanism. We also found that treatment with cholecalciferol (vitamin D3) mitigates MCP-1 induction, likely because of competition between retinoic acid receptors (RARs) and vitamin D receptors (VDR) for their common binding partner retinoid nuclear receptors (RXRs). Conclusions: Retinoids that naturally accumulate in orbital adipose tissue can act on orbital fibroblasts to induce the expression of inflammation-associated genes. These data suggest a potential role for retinoids in sensitizing the orbit to inflammation.


Subject(s)
Chemokine CCL2/genetics , Gene Expression Regulation/drug effects , Inflammation/genetics , NF-kappa B/genetics , RNA, Messenger/genetics , Tretinoin/pharmacology , Blotting, Western , Cells, Cultured , Chemokine CCL2/biosynthesis , Fibroblasts/metabolism , Fibroblasts/pathology , Humans , Inflammation/metabolism , Inflammation/pathology , NF-kappa B/biosynthesis , Orbit/metabolism , Orbit/pathology , Signal Transduction
SELECTION OF CITATIONS
SEARCH DETAIL