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Oro S, Le Floch R, Alvès A, Colin A, Ouedraogo R, Welfringer A, Dereure O, Besnard N, Bodemer C, Bernier C, Hoffmann C, Tetart F, Carpentier D, Cordel N, Elie E, Tauber M, Soubiron L, Milpied B, de Prost N. Modalités de réalisation des soins locaux de la nécrolyse épidermique : enquête de pratiques. Ann Dermatol Venereol 2020. [DOI: 10.1016/j.annder.2020.09.183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hoffmann C, Macefield RC, Wilson N, Blazeby JM, Avery KNL, Potter S, McNair AGK. A systematic review and in-depth analysis of outcome reporting in early phase studies of colorectal cancer surgical innovation. Colorectal Dis 2020; 22:1862-1873. [PMID: 32882087 DOI: 10.1111/codi.15347] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/19/2020] [Accepted: 08/20/2020] [Indexed: 12/23/2022]
Abstract
AIM Early phase studies are essential to evaluate new technologies prior to randomized evaluation. Evaluation is limited, however, by inconsistent measurement and reporting of outcomes. This study examines outcome reporting in studies of innovative colorectal cancer surgery. METHODS Systematic searches identified studies of invasive procedures treating primary colorectal adenocarcinoma. Included were a random sample of studies which authors reported as 'new' or 'modified'. Outcomes were extracted verbatim and categorized using an existing framework of 32 domains relevant to early phase studies. Outcomes were classified as 'measured' (where there was an explicit statement to that effect or evidence that data collection had occurred) or 'mentioned but not measured' (where outcomes were discussed but data collection was not evident). Patterns of identified outcomes are described. RESULTS Of 8373 records, 816 were potentially eligible. Full-text review of a random sample of 218 studies identified 51 for inclusion of which 34 (66%) were 'new' and 17 (33%) were 'modified'. Some 2073 outcomes were identified, and all mapped to domains. 'Anticipated disadvantages' were most frequently identified [660 (32%) outcomes identified across 50 (98%) studies]. No domain was represented in all studies. Under half (944, 46%) of outcomes were 'measured'. 'Surgeon's/operator's experience of the innovation' was more frequently 'mentioned but not measured' [207 (18%) outcomes across 46 (90%) studies] than 'measured' [17 (2%) outcomes, 11 (22%) studies]. CONCLUSION There is outcome reporting heterogeneity in studies of early phase colorectal cancer surgery. The adoption of core outcome sets may help to resolve these inconsistencies and enable efficient evaluation of surgical innovations.
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Feliachi S, Le Moigne E, Le Ven F, Hoffmann C, Bressolette L, Didier R, Jobic Y, Gilard M, Mansourati J, Leroyer C, Couturaud F. Comparison between transthoracic echocardiography and transcranial Doppler for detection of PFO in patients in the acute phase of a pulmonary embolism. A Post-hoc analysis of EPIC-FOP. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Patent foramen ovale is a fairly common defect found in a quarter of the population. PFO has always been associated with an increased risk of stroke, the mechanism of which has been attributed to the paradoxical embolism of venous thrombi passing through the PFO directly into the left atrium, however this mechanism remains debated to date.
For the detection of PFO, several modalities exist including transcranial doppler (TCD), transthoracic echocardiography (TTE) and transoesophageal echocardiography. This raises the question of the examination with the best diagnostic performance for its detection.
Purpose
The majority of studies comparing the different modalities of patient PFO diagnosis have been conducted in the context of stroke assessment. Very few studies have focused on the acute PE patient population. The interest of our study is therefore to evaluate the diagnostic performance of two modalities (TTE versus TCD) for the detection of shunts, especially since this population is at risk of stroke by paradoxical embolism due to the phenomenon of hyperpressure in the right heart chambers increasing the chances of having a paradoxical embolism.
Methods
We performed a post HOC analysis of the EPIC-FOP study which is a multicenter, prospective, French cohort study. Patients were recruited within 3 days of diagnosis of PE. Patients included were given a transthoracic echocardiography (TTE) with PFO screening by injection of saline contrast and magnetic resonance imaging (MRI) within 7 days of inclusion to look for signs of recent stroke. A proportion of the patients included in this study also received a transcranial doppler in search of PFO, the results of which were used in our study.
Results
The mean age of the patients was 62±14.66 years with a slight male predominance (55.6%). TCD was able to detect 97 right-left shunts while the TTE detected only 25 shunts. Concordance analysis by Cohen's Kappa Coefficient: 0.1767 [0.0427; 0.3107–p<0.001] is considered poor.
Using TTE as the reference examination, transcranial Doppler has a very good sensitivity 96.00% (79.65% to 99.90%) and a poor specificity 42.06% (33.33% to 51.18%). A good negative likelihood ratio 0.10 (0.01 to 0.66).
Using TCD, incidence of stroke in the acute phase of PE was significantly higher in the PFO population. In the ten strokes detected 9 had occurred in patients with PFO, RR=1.43 IC95% (1.1169 to 1.8228) p=0. 0044. The difference in proportion is calculated to be 26.92%.
Conclusion
It is the first study that compared TCD vs TEE in the setting of acute phase of PE for detection of PFO. TCD showed a good sensitivity and negative likelihood ratio that can be used as a first means to rule out PFO or associated with TTE. Also, our analysis confirms the increased risk of stroke following a PE episode when a PFO is present.
Funding Acknowledgement
Type of funding source: None
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Ingen‐Housz‐Oro S, Le Floch R, Alves A, Colin A, Ouedraogo R, Welfringer A, Dereure O, Besnard N, Bodemer C, Bernier C, Hoffmann C, Tétart F, Carpentier D, Cordel N, Elie E, Tauber M, Soubiron L, Milpied B, Prost N. Carrying out local care for epidermal necrolysis: survey of practices. J Eur Acad Dermatol Venereol 2020; 35:e155-e157. [DOI: 10.1111/jdv.16884] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/11/2020] [Accepted: 08/13/2020] [Indexed: 12/22/2022]
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Macefield RC, Wilson N, Hoffmann C, Blazeby JM, McNair AGK, Avery KNL, Potter S. Outcome selection, measurement and reporting for new surgical procedures and devices: a systematic review of IDEAL/IDEAL-D studies to inform development of a core outcome set. BJS Open 2020; 4:1072-1083. [PMID: 33016009 PMCID: PMC8444278 DOI: 10.1002/bjs5.50358] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 08/20/2020] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Outcome selection, measurement and reporting for the evaluation of new surgical procedures and devices is inconsistent and lacks standardization. A core outcome set may promote the safe and transparent evaluation of surgical innovations. This systematic review examined outcome selection, measurement and reporting in studies conducted within the IDEAL (Idea, Development, Exploration, Assessment and Long-term monitoring) framework to examine current practice and inform the development of a core outcome set for early-phase studies of surgical procedures/devices. METHODS Web of Science and Scopus citation searches were performed to identify author-reported IDEAL/IDEAL-D studies for any surgical procedure/device. Outcomes were extracted verbatim, including contextual information regarding outcome selection and measurement. Outcomes were categorized to inform a conceptual framework of outcome domains relevant to evaluating innovation. RESULTS Some 48 studies were identified. Outcome selection, measurement and reporting varied widely across studies in different IDEAL stages. From 1737 outcomes extracted, 22 domains specific to evaluating innovation were conceptualized under seven broad categories: procedure completion success/failure; modifications; unanticipated events; surgeons' experiences; patients' experiences; resource use specific to the innovative procedure/device; and other innovation-specific outcomes. Most innovation-specific outcomes were measured and reported in only a small number of studies. CONCLUSION This review highlighted the need for guidance and standardization in outcome selection and reporting in the evaluation of new surgical procedures/devices. Novel outcome domains specific to innovation have been identified to establish a core outcome set for future evaluations of surgical innovations.
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Basso AMM, De Castro RJA, de Castro TB, Guimarães HI, Polez VLP, Carbonero ER, Pomin VH, Hoffmann C, Grossi-de-Sa MF, Tavares AH, Bocca AL. Immunomodulatory activity of β-glucan-containing exopolysaccharides from Auricularia auricular in phagocytes and mice infected with Cryptococcus neoformans. Med Mycol 2020; 58:227-239. [PMID: 31095342 DOI: 10.1093/mmy/myz042] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 04/01/2019] [Accepted: 04/12/2019] [Indexed: 12/19/2022] Open
Abstract
Current antifungal drugs present poor effectiveness and there is no available vaccine for fungal infections. Thus, novel strategies to treat or prevent invasive mycosis, such as cryptococcosis, are highly desirable. One strategy is the use of immunomodulators of polysaccharide nature isolated from mushrooms. The purpose of the present work was to evaluate the immunostimulatory activity of β-(1,3)-glucan-containing exopolysaccharides (EPS) from the edible mushrooms Auricularia auricula in phagocytes and mice infected with Cryptococcus neoformans. EPS triggered macrophages and dendritic cell activation upon binding to Dectin-1, a pattern recognition receptor of the C-type lectin receptor family. Engagement of Dectin-1 culminated in pro-inflammatory cytokine production and cell maturation via its canonical Syk-dependent pathway signaling. Furthermore, upon EPS treatment, M2-like phenotype macrophages, known to support intracellular survival and replication of C. neoformans, repolarize to M1 macrophage pattern associated with enhanced production of the microbicidal molecule nitric oxide that results in efficient killing of C. neoformans. Treatment with EPS also upregulated transcript levels of genes encoding products associated with host protection against C. neoformans and Dectin-1 mediated signaling in macrophages. Finally, orally administrated β-glucan-containing EPS from A. auricular enhanced the survival of mice infected with C. neoformans. In conclusion, the results demonstrate that EPS from A. auricula exert immunostimulatory activity in phagocytes and induce host protection against C. neoformans, suggesting that polysaccharides from this mushroom may be promising as an adjuvant for vaccines or antifungal therapy.
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Hoffmann C, Leven C, Le Mao R, De Moreuil C, Lacut K. [Direct oral anticoagulants: In which indications? Which one to prescribe? For or against their use in frail patients and in atypical cases? Which monitoring and management haemorrhage complications?]. Rev Med Interne 2020; 41:598-606. [PMID: 32674901 DOI: 10.1016/j.revmed.2020.05.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 05/09/2020] [Accepted: 05/21/2020] [Indexed: 02/08/2023]
Abstract
Since their approval, the direct oral anticoagulants have been widely used in the management of venous thromboembolism, for stroke and systemic embolism prevention in non valvular atrial fibrillation, and in venous thromboembolism prophylaxis after surgical hip or knee replacement. Because they are easy to use, with oral fixed doses and no biological monitoring need, they are more and more prescribed. New indications are rising in cancer associated thrombosis in France beyond the 6 first months of treatment, and to prevent cardiovascular events after an acute coronary syndrome, or in stable coronary or peripheral arterial disease in Europe. The efficacity and safety of direct oral anticoagulants in frail patients or in unusual pathological contexts are not entirely known, but further data are coming and will probably bring new answers.
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Scholz M, Onal B, Schleicher P, Pingel A, Hoffmann C, Kandziora F. Two-level ACDF with a zero-profile stand-alone spacer compared to conventional plating: a prospective randomized single-center study. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2020; 29:2814-2822. [PMID: 32430769 DOI: 10.1007/s00586-020-06454-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 05/06/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE Stand-alone zero-profile devices have already proven safety, and a reduced dysphagia rate was assumed. So far, no level-one evidence is available to prove the proposed advantages of zero-profile implants in multilevel procedures. The aim of this RCT was to compare the clinical and radiological outcome of a zero-profile spacer versus cage + plate in two-level ACDF. METHODS Consecutive patients with contiguous two-level cDD were randomly assigned either to the interventional group (zero-profile device) or to the control group (cage + plate). Primary endpoint of the study was the prevalence of dysphagia at 24 months. Disability, progress of adjacent segment degeneration, fusion status and loss of correction were analyzed as secondary outcome measure. Primary outcome parameter was statistically analyzed by Chi-square test. RESULTS Forty-one patients met inclusion criteria and were randomly assigned to the interventional and the control group. Dysphagia was frequent in either group at 3 months FU favoring interventional group (p = 0.078). At final FU, less patients of the interventional group complained about dysphagia, but the difference was not significant. No relevant differences at final FU were recorded for NPDI, loss of correction and adjacent-level degeneration. Fusion rate was slightly lower in the interventional group. DISCUSSION Two-level ACDF either by a stand-alone zero-profile spacer or cage + plate is safe. Using a zero-profile cage dysphagia was infrequent at 24 months, but the value did not reach statistical significance in comparison with the cage + plate. Hence, this randomized trial was not able to prove the proposed clinical superiority for dysphagia rates for zero-profile anchored spacer in two-level cDD.
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Kerpel A, Yalon M, Soudack M, Chiang J, Gajjar A, Nichols KE, Patay Z, Shrot S, Hoffmann C. Neuroimaging Findings in Children with Constitutional Mismatch Repair Deficiency Syndrome. AJNR Am J Neuroradiol 2020; 41:904-910. [PMID: 32354708 DOI: 10.3174/ajnr.a6512] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 02/26/2020] [Indexed: 01/02/2023]
Abstract
BACKGROUND AND PURPOSE Constitutional mismatch repair deficiency is a hereditary childhood cancer predisposition syndrome characterized by brain tumors and colorectal and hematologic malignancies. Our objective was to describe the neuroimaging findings in patients with constitutional mismatch repair deficiency. MATERIALS AND METHODS This retrospective study included 14 children with genetically confirmed constitutional mismatch repair deficiency who were referred to 2 tertiary pediatric oncology centers. RESULTS Fourteen patients from 11 different families had diagnosed constitutional mismatch repair deficiency. The mean age at presentation was 9.3 years (range, 5-14 years). The most common clinical presentation was brain malignancy, diagnosed in 13 of the 14 patients. The most common brain tumors were glioblastoma (n = 7 patients), anaplastic astrocytoma (n = 3 patients), and diffuse astrocytoma (n = 3 patients). Nonspecific subcortical white matter T2 hyperintensities were noted in 10 patients (71%). Subcortical hyperintensities transformed into overt brain tumors on follow-up imaging in 3 patients. Additional non-neoplastic brain MR imaging findings included developmental venous anomalies in 12 patients (85%) and nontherapy-induced cavernous hemangiomas in 3 patients (21%). CONCLUSIONS On brain MR imaging, these patients have both highly characteristic intra-axial tumors (typically multifocal high-grade gliomas) and nonspecific findings, some of which might represent early stages of neoplastic transformation. The incidence of developmental venous anomalies is high in these patients for unclear reasons. Awareness of these imaging findings, especially in combination, is important to raise the suspicion of constitutional mismatch repair deficiency in routine diagnostic imaging evaluation or surveillance imaging studies of asymptomatic carriers because early identification of the phenotypic "gestalt" might improve outcomes.
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Le Tourneau C, Calugaru V, Borcoman E, Moreno V, Calvo E, Liem X, Salas S, Doger B, Jouffroy T, Mirabel X, Rodriguez J, Chilles A, Bernois K, De Rink M, Baskin-Bey E, Fakhry N, Hee Kam SW, Hoffmann C. Hafnium oxide nanoparticles (NBTXR3) activated by radiotherapy for the treatment of frail and/or elderly patients with locally advanced HNSCC: a phase I/II study. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kullmann S, Wagner L, Berti K, Schneeweiss P, Veit R, Hoffmann C, Niess A, Preissl H, Häring H, Fritsche A, Weigert C, Böhm A, Heni M. P6 Exercise improves intranasal insulin mediated functional connectivity in sedentary overweight and obese adults. Clin Neurophysiol 2020. [DOI: 10.1016/j.clinph.2019.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Le Tourneau C, Garcia V, Doger B, Urban A, Bernois K, Liem X, Salas S, Wong S, Fakhry N, Dimitriu M, Calugaru V, Hoffmann C. PHASE I STUDY OF HAFNIUM OXIDE NANOPARTICLES ACTIVATED BY INTENSITY MODULATED RADIATION THERAPY (IMRT) AS A NEW THERAPEUTIC OPTION FOR ELDERLY OR FRAIL HNSCC PATIENTS. J Geriatr Oncol 2019. [DOI: 10.1016/s1879-4068(19)31169-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Brückl W, Reck M, Laack E, Hermes B, Rawluk J, Huber R, Hoffmann C, Schueler A. Sequential treatment with afatinib followed by 3rd generation EGFR-TKI – subgroup analysis of the GIDEON trial: A prospective non-interventional study (NIS) in EGFR mutated NSCLC patients in Germany. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz260.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Laack E, Hoffmann C, Reck M, Schaefer H, Kortsik C, Griesinger F, Schueler A, Brückl W. Patients with brain metastases treated with afatinib in clinical practice: Results from the prospective non-interventional study GIDEON. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz260.058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Brückl W, Laack E, Hoffmann C, Zhou C, Wu Y. P2.01-79 Afatinib in EGFR Mutation-Positive (EGFRm+) NSCLC Harbouring Uncommon Mutations: Experience in ‘Real-World’ Clinical Practice. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1422] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Dicker A, Shen C, De Baere T, Hoffmann C, Welsh J, Rolland Y, Doger B, Den R, Trabulsi E, Lallas C, Seiwert T, Fernando N, Iannessi A, Pilleul F, Tetreau R, Rutkowski P, Papai Z, Brisse H. Hafnium Oxide Nanoparticles Activated By Radiotherapy: Potential for Local Treatment of a Wide Variety of Solid Tumors. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Mardor Y, Last D, Daniels D, Tylim A, Nass D, Nissim O, Spiegelmann R, Tsarfaty G, Hoffmann C, Talianski A, Blumenthal D, Bukstein F, Limon D, Tzuk T, Shoshan Y, Cohen Z, Zach L, Guez D. Treatment Response Assessment Maps (TRAMs): Increased/Decreased Sensitivity to Tumor As a Function of Acquisition/Analysis Parameters. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.2228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Atallah S, Berçot B, Laurence V, Hoffmann C. Association of Mycoplasma Hominis and head and neck cancer with unknown primary. Eur Ann Otorhinolaryngol Head Neck Dis 2019; 137:69-71. [PMID: 31186167 DOI: 10.1016/j.anorl.2019.05.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Beside HPV infection, there is currently no evidence of association between head and neck squamous cell carcinomas and microbial infections. We report the case of a cervical squamous cell carcinoma by Mycoplasma hominis. CASE SUMMARY A 20-year-old woman, consulted for a swelling on the left cervical side. Clinical examination found a large fixed mass. Biological tests found no evidence of infection. Biopsies of the cervical lesion diagnosed an HPV negative squamous cell carcinoma. Microbiological tests of 16sRNA identification showed the presence of Mycoplasma hominis in the 3 specimens. The patient was treated by induction chemotherapy associated to antibiotherapy, followed by chemo-radiotherapy. DISCUSSION The present case suggests that oropharyngeal infection by Mycoplasma hominis might be more frequent than expected, that 16sRNA is an efficient technique to isolate this pathogen and finally that further studies are required to document its potential oncogenic role in head and neck squamous cell carcinomas.
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Brückl W, Laack E, Kortsik C, Schaefer H, Reck M, Maerten A, Hoffmann C. Elderly patients treated with afatinib in clinical practice: Results from the prospective non-interventional study GIDEON. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz063.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Hoffmann C, Calugaru V, Garcia VM, Mirabel X, de Spéville BD, Calvo E, Jouffroy T, Rodrigez J, Chilles-Wang A, Yemi M, Lesnik M, Badois N, Liem X, Salas S, Fakhri N, Khanà SWH, Le Tourneau C. OC-043 HNSCC in elderly frail patients treated by hafnium oxide nanoparticles activated by IMRT. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30209-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hoffmann C, Sarturi J, Reis B, Miller M, Brashears M, Millen D, Milopoulos J, Opheim T. PSVII-9 Ruminal papillae morphology and volatile fatty acid profile of beef feedlot steers fed L. salivarius L28 in replacement for tylosin. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Calugaru V, Hoffmann C, Garcia VM, Mirabel X, Dodger B, Calvo E, Jouffroy T, Rodriguez J, Chilles A, Yemi M, Lesnik M, Badois N, Liem X, Le Tourneau C. Elderly Patients: NBTXR3 as a Novel Treatment Option in Locally Advanced HNSCC. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Mardor Y, Spiegelmann R, Guez D, Last D, Daniels D, Sharabi S, Nass D, Nissim O, Tsarfaty G, Hoffmann C, Talianski A, Fellig Y, Harnof S, Cohen Z, Shoshan Y, Zach L. Radiation-Induced Vascular Malformations Mimicking Tumor in MRI-Based Treatment Response Assessment Maps (TRAMs). Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Adlere I, Sun S, Zarca A, Roumen L, Gozelle M, Viciano CP, Caspar B, Arimont M, Bebelman JP, Briddon SJ, Hoffmann C, Hill SJ, Smit MJ, Vischer HF, Wijtmans M, de Graaf C, de Esch IJP, Leurs R. Structure-based exploration and pharmacological evaluation of N-substituted piperidin-4-yl-methanamine CXCR4 chemokine receptor antagonists. Eur J Med Chem 2018; 162:631-649. [PMID: 30476826 DOI: 10.1016/j.ejmech.2018.10.060] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 10/23/2018] [Accepted: 10/27/2018] [Indexed: 01/20/2023]
Abstract
Using the available structural information of the chemokine receptor CXCR4, we present hit finding and hit exploration studies that make use of virtual fragment screening, design, synthesis and structure-activity relationship (SAR) studies. Fragment 2 was identified as virtual screening hit and used as a starting point for the exploration of 31 N-substituted piperidin-4-yl-methanamine derivatives to investigate and improve the interactions with the CXCR4 binding site. Additionally, subtle structural ligand changes lead to distinct interactions with CXCR4 resulting in a full to partial displacement of CXCL12 binding and competitive and/or non-competitive antagonism. Three-dimensional quantitative structure-activity relationship (3D-QSAR) and binding model studies were used to identify important hydrophobic interactions that determine binding affinity and indicate key ligand-receptor interactions.
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Le Tourneau C, Calugaru V, Moreno V, Mirabel X, Dodger B, Calvo E, Jouffroy T, Rodriguez J, Chilles A, Yemi M, Hoffmann C. Elderly patients with locally advanced head and neck squamous cell carcinoma treated with NBTXR3 nanoparticles activated by radiotherapy: A phase I trial. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy287.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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