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The Value of Narrow Band Imaging in Stratifying Patients for Endoscopic Resection or Surgery

ABSTRACT: Magnification narrow band imaging (NBI) can make accurate evaluation in in predicting of invasive depth of colorectal neoplasia.

DISEASE(S): Colorectal Neoplasms

PROVIDER: 2119446 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

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Transcription profiling by array of oral squamous cell cancer (OSCC) surgical margins defined by narrow band imaging.

Project description:The purpose of this study was to provide molecular evidence that surgical margin definition using narrow band imaging (NBI) resulted in more complete OSCC excision that conventional while light (WL) imaging. Samples were taken prospectively from 18 patients undergoing surgical resection for intraoral SCC (excluding lip, pharynx and hypopharynx). Biopsies were taken from the tumour and from 5mm beyond each of the abnormal tissue margins defined by WL and NBI. Transcriptional profiling was performed by microarray.

2018-01-17 | E-MTAB-5933 | biostudies-arrayexpress

MicroRNA profiling by array of oral squamous cell cancer (OSCC) surgical margins defined by narrow band imaging.

2018-02-09 | E-MTAB-6470 | biostudies-arrayexpress

Comparison of Diagnostic Accuracy for Predicting Histology of Colorectal Lesions

Project description:Chromoendoscopy (indigo carmine or acetic acid) and Narrow Band Imaging (NBI) could make accurate evaluation in predicting of invasive depth of colorectal neoplasia. NBI could be the first choice.

| 2119445 | ecrin-mdr-crc

Gene Profiling of Narrow-band UVB-induced Skin Injury Defines Cellular and Molecular Innate Immune Responses

Project description:We sought to define the cutaneous response at 24 hours following erythemogenic doses of narrow-band UVB (NB-UVB, 312 nm peak) exposure and determine the differences between irradiated and non-irradiated skin.

2012-10-30 | GSE41078 | GEO

Narrow-band UVB phototherapy reverses DNA methylation changes in psoriatic epidermis

Project description:To obtain a comprehensive DNA methylation signature specific for the epidermal component of psoriasis and to analyze methylation changes during therapy, we performed genome-wide DNA methylation profiling of epidermal cells from 12 patients undergoing narrow-band UVB phototherapy and 12 corresponding healthy controls. A distinct DNA methylation pattern was seen in psoriasis compared to controls. An overall hypomethylation was found in psoriasis and 3665 methylation variable positions were identified. The DNA methylation pattern was reversed at the end of phototherapy in patients with clinical response.

2015-04-02 | GSE63315 | GEO

Narrow-band UVB phototherapy for psoriasis

Project description:Psoriasis is a common chronic inflammatory and hyperproliferative immune-mediated skin disorder. Narrow-band UVB (NB-UVB) phototherapy is a convenient first-line treatment of psoriasis, though the mechanisms underlying its efficacy have not been completely elucidated. In order to improve our understanding of NB-UVB phototherapy, gene expression profiling was used to characterize gene expression in lesional epidermis from psoriasis patients undergoing NB-UVB phototherapy. Increased expression of melanogenesis pathway genes was observed to be the earliest response. At the end of treatment, genes involved in diverse biological processes were affected, such as pigmentation, cell adhesion, ectodermal development and metabolism. The relationship between gene expression and treatment outcome was further studied using Partial Least Squares Discriminant Analysis (PLS-DA). Gene ontology analysis showed that genes responding to phototherapy and highly correlated to treatment outcome were involved in oxidation reduction, growth and mitochondria organization. In particular SPATA18, a key regulator of mitochondria quality, was found to be significantly downregulated in psoriasis, and its upregulation following phototherapy was required for optimal clinical improvement. Our data suggest that oxidation reduction is a critical event for the resolution of psoriatic plaques.

2013-12-23 | GSE53431 | GEO

Gene Profiling of Narrow-band UVB-induced Skin Injury Defines Cellular and Molecular Innate Immune Responses

2012-10-30 | E-GEOD-41078 | biostudies-arrayexpress

Narrow-band UVB phototherapy reverses DNA methylation changes in psoriatic epidermis

2015-04-02 | E-GEOD-63315 | biostudies-arrayexpress

Study of Narrow Band Imaging in the Characterization of Serrated Lesions

Project description:This study is designed to evaluate the utility of Narrow Band Imaging (NBI) compared with High Definition White Light colonoscopy (WLE) in subjects with serrated lesions who do not fulfill the diagnostic criteria of Serrated Polyposis Syndrome (SPS).

| 2187136 | ecrin-mdr-crc

Study of Narrow Band Imaging in the Characterization of Residual Neoplasia After Endoscopic Piecemeal Mucosal Resection

Project description:This study is designed to evaluate the diagnostic accuracy of Narrow Band Imaging (NBI) compared with High Definition White Light colonoscopy (WLE) for detection of residual neoplasia in subjects with piecemeal polypectomy scars.

| 2190366 | ecrin-mdr-crc

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