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Find video protocols related to scientific articles indexed in Pubmed.
Initial metastatic kinetics is the best prognostic indicator in stage IV metastatic melanoma.
Eur. J. Cancer
PUBLISHED: 01-15-2014
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In metastatic melanoma (MM) there is an agreement that a fast or slow progression should influence the choice between drugs with immediate impact (BRAF-inh) or delayed (ipilimumab) activity. MM kinetics thus appears crucial for medical decision, although only estimated through surrogate markers (tumour load or lactate dehydrogenase (LDH)). Our objective was to show that 1-MM kinetics can be measured and 2- is a real prognostic factor.
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123I-BZA2 as a Melanin-Targeted Radiotracer for the Identification of Melanoma Metastases: Results and Perspectives of a Multicenter Phase III Clinical Trial.
J. Nucl. Med.
PUBLISHED: 11-21-2013
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Our group has developed a new radiopharmaceutical, (123)I - N-(2-diethylaminoethyl)-2-iodobenzamide ((123)I-BZA2), a benzamide derivative able to bind to melanin pigment in melanoma cells. In a prospective and multicentric phase III clinical study, the value of (18)F-FDG PET/CT and (123)I-BZA2 scintigraphy was compared for melanoma staging.
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A severe case of ipilimumab-induced guillain-barré syndrome revealed by an occlusive enteric neuropathy: a differential diagnosis for ipilimumab-induced colitis.
J. Immunother.
PUBLISHED: 06-29-2013
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Ipilimumab is a fully human monoclonal antibody directed against cytotoxic T-lymphocyte antigen-4 recently approved for the treatment of metastatic melanoma and currently under investigation in the adjuvant setting of high-risk stage III melanoma. The blockade of CTLA-4 induces activation of T cells, with an expected increase in the immunological reaction directed to cancer. We report a case of ipilimumab-induced Guillain-Barré syndrome revealed by an occlusive enteric neuropathy. Two weeks after the second dose of ipilimumab, our patient started to complain of abdominal meteorism and nausea. Within a few days, an occlusive syndrome developed. Wall biopsies during colonoscopy revealed a slight edema of the mucosa and a high number of lymphocytic follicles, leading to the diagnosis of ipilimumab-induced immune colitis. A respiratory failure occurred and a neurological deficiency developed rapidly. The diagnosis of polyradiculoneuritis was retained. Despite IV steroids, tacrolimus than plasmatic exchanges, the patient died within a few days because of multivisceral failure. Polyradiculoneuritis is a rare but very severe immune-mediated complication of ipilimumab. Occlusive enteric neuropathy may mimic the digestive symptoms of colitis, which is so frequent under ipilimumab.
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Evidence of a limited intra-individual diversity of nevi: intuitive perception of dominant clusters is a crucial step in the analysis of nevi by dermatologists.
J. Invest. Dermatol.
PUBLISHED: 02-08-2013
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Although nevi are highly polymorphous, it has been suggested that each individual is characterized by only a few dominant patterns of nevi. Therefore, a nevus that does not fit in with these patterns, the "ugly duckling" nevus, is suspicious. Our objective was to study the intra-individual diversity of nevi, using human ability to build "perceived similarity clusters" (PSCs). Nine dermatologists had to cluster all the nevi of 80 patients into PSCs, at the clinical scale (CS) and at the dermoscopic scale (DS) (subset of 30 patients). Nine novices did the same in a subset of 11 patients. The experts identified a mean of 2.8 PSCs/patient at CS. Concordance was higher between experts than between novices at CS and at DS. Despite a trend for more PSCs at DS than at CS, the number of nevus patterns per patient remained low, regardless of the number of nevi. Inter-expert concordance permits a consensus representation of nevus diversity in each individual. Nevus diversity is limited in each patient and constitutes an individual reference system, which we can intuitively perceive. This reference is probably crucial for nevus analysis and melanoma detection and opens perspectives for computer-aided diagnostics.
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Impact of STROBE statement publication on quality of observational study reporting: interrupted time series versus before-after analysis.
PLoS ONE
PUBLISHED: 01-01-2013
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In uncontrolled before-after studies, CONSORT was shown to improve the reporting of randomised trials. Before-after studies ignore underlying secular trends and may overestimate the impact of interventions. Our aim was to assess the impact of the 2007 STROBE statement publication on the quality of observational study reporting, using both uncontrolled before-after analyses and interrupted time series.
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The "spaghetti technique": an alternative to Mohs surgery or staged surgery for problematic lentiginous melanoma (lentigo maligna and acral lentiginous melanoma).
J. Am. Acad. Dermatol.
PUBLISHED: 01-25-2011
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Lentigo maligna (LM) and acral lentiginous melanoma (ALM) are often large and clinically ill defined. The surgical challenge is to spare tissue while still achieving clear margins.
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LBR mutation and nuclear envelope defects in a patient affected with Reynolds syndrome.
J. Med. Genet.
PUBLISHED: 06-05-2010
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BACKGROUND Lamins are proteins of the nuclear envelope involved in laminopathies, an heterogeneous group of diseases sharing clinical similarities with systemic sclerosis (SSc). Methods In this context, a search was undertaken for mutations in LMNA, encoding Lamins A/C, and ZMPSTE24, LBR, LMNB1, LMNB2, MAN1, SYNE1a and LAP2, encoding Lamins A/C molecular partners, in a Caucasian woman affected with Reynolds syndrome, a particular nosologic entity specifically associating limited cutaneous SSc and primary biliary cirrhosis. RESULTS Coding regions and intron-exon boundaries of these genes were PCR amplified and sequenced, revealing a single heterozygous missense mutation in LBR exon 9 (c.1114C/T; p.R372C). This variant was absent in 400 control chromosomes. The mutation was predicted to induce a change in Lamin B receptor (LBR) tertiary structure and molecular interactions by bioinformatic tools. Further functional explorations were performed on the patients fibroblasts and lymphoblastoid cell lines. On the latter, the expression levels of LBR, Lamins A/C, Lamin B1, Lamin B2, and HP1a were conserved. Conversely, in the patients skin fibroblasts, LBR and the aforementioned molecular partners showed dramatically reduced or abolished expression levels. The immunofluorescence analyses performed on both cell lines corroborated these findings. CONCLUSION The fibroblast specific abnormalities observed suggest that this particular LBR mutation might have dominant negative deleterious effects in a tissue specific fashion, possibly through the perturbation of the interactions or stability of the nuclear envelope protein network. LBR mutations might thus be associated with Reynolds syndrome.
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LMNA, ZMPSTE24, and LBR are not mutated in scleroderma.
Genet Test Mol Biomarkers
PUBLISHED: 08-04-2009
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Scleroderma is a rare multisystemic disease of unknown etiology presumed to develop in genetically predisposed patients. Since patients affected with scleroderma develop clinical features similar to those observed in some laminopathies, we decided to screen at the genomic level a cohort of 27 patients affected with either localized or systemic scleroderma for mutations in three lamin-related genes: LMNA, encoding A-type lamins; ZMPSTE24, encoding a protease involved in lamin A processing; and LBR, encoding the lamin B receptor. No mutation was retrieved, whereas 25 polymorphic sequence variations were identified, 7 of which were unreported. Functional analyses performed for three of these allowed exclusion of an impact on splicing. Multiplex ligation-dependent probe amplification analysis showed no LMNA deletion or duplication. Altogether our results suggest that LMNA, ZMPSTE24, and LBR sequence variations are not major genetic determinants involved in scleroderma pathogenesis.
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Risk factors in elderly people for lentigo maligna compared with other melanomas: a double case-control study.
Arch Dermatol
PUBLISHED: 04-22-2009
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To assess lentigo maligna (LM) as an epidemiological entity separate from other melanomas (OMs) in elderly people.
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Ipilimumab in Melanoma Patients with Brain Metastasis: A Retro-spective Multicentre Evaluation of Thirty-eight Patients.
Acta Derm. Venereol.
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Treatment with ipilimumab, a monoclonal antibody that antagonizes cytotoxic T-lymphocyte antigen-4 (CTLA-4), results in improved survival of patients with stage IIIc-IV melanoma. However, there is a lack of data on the efficacy of ipilimumab in patients with brain metastases. To evaluate the efficacy of ipilimumab for the treatment of brain metastasis in melanoma, a multicentre, retrospective analysis of 38 patients with brain metastases in melanoma, treated with ipilimumab in the context of the French Expanded Access Program, was performed. Three patients had a 3 partial response, 5 stable disease, 15 disease progression and 15 patients died during the induction phase due to disease progression. Median overall survival was 101 days (range 54-154). The brain metastases control rate was 16% (6/38). Ipilimumab may be effective in a few patients with central nervous system metastasis. However, patients with brain metastases and a low life expectancy may not benefit sufficiently from treatment with ipilimumab.
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What is Visualize?

JoVE Visualize is a tool created to match the last 5 years of PubMed publications to methods in JoVE's video library.

How does it work?

We use abstracts found on PubMed and match them to JoVE videos to create a list of 10 to 30 related methods videos.

Video X seems to be unrelated to Abstract Y...

In developing our video relationships, we compare around 5 million PubMed articles to our library of over 4,500 methods videos. In some cases the language used in the PubMed abstracts makes matching that content to a JoVE video difficult. In other cases, there happens not to be any content in our video library that is relevant to the topic of a given abstract. In these cases, our algorithms are trying their best to display videos with relevant content, which can sometimes result in matched videos with only a slight relation.