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Dermatologic manifestations in paediatric neurofibromatosis type 2: a cross sectional descriptive multicentric study. Orphanet J Rare Dis 2022; 17:242. [PMID: 35729665 PMCID: PMC9210598 DOI: 10.1186/s13023-022-02379-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 06/06/2022] [Indexed: 11/27/2022] Open
Abstract
Background Neurofibromatosis type 2 (NF2) is characterized by bilateral vestibular schwannoma (VS) more often in adults but a severe paediatric form with multiple neurological tumours is also described. In this population, a early diagnosis is important to prevent the onset of neurological complications but is difficult, particularly without a familial history. Cutaneous manifestations, which may precede VS or neurological tumours by several years, may contribute to an early diagnosis, but specific studies are lacking. The objective of this study was to characterize cutaneous manifestations of NF2 in a paediatric population. Results This observational, descriptive and multicentric study was conducted from April 2019 to April 2020 in seven academic French hospitals. We included patients ≤ 18 years old who fulfilled the Manchester diagnostic criteria or had a pathogenic mutation identified in the NF2 gene. All patients underwent a dermatological examination guided by a standardized questionnaire. 21 children were included, of whom 20 had at least one skin tumour (mean number 5 ± 4.6 [range 0–15]), which led to a diagnosis in four cases. In the other 17 cases, the diagnosis of NF2 was based on neurosensory complications (n = 10), family screening (n = 4) or ocular signs (n = 3). Before the NF2 diagnosis, 15 children had at least one “undiagnosed” cutaneous tumour that did not lead to a specific management. Patients’ dermatological examination also revealed < 6 non specific café au lait macules (n = 15), hypopigmented macules (n = 12) with more than 3 lesions in 4 cases, and purple reticulated macules of the trunk (n = 4). Conclusion Dermatological lesions are frequent and early in children with NF2 but rarely lead to the diagnosis. Cutaneous schwannomas are the most frequent but are often underdiagnosed. Café au lait macules are frequent, but atypical and mostly in small numbers. Multiple hypopigmented macules seem suggestive although inconsistent. The sensitivity of reticulated capillary malformation-like lesions remains to be assessed by further studies. Supplementary Information The online version contains supplementary material available at 10.1186/s13023-022-02379-6.
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Soixante-dix ans de chirurgie bariatrique : une revue systématique des essais contrôlés randomisés. NUTR CLIN METAB 2022. [DOI: 10.1016/j.nupar.2021.12.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Safety and efficacy of low-dose PI3K inhibitor taselisib in adult patients with CLOVES and Klippel-Trenaunay syndrome (KTS): the TOTEM trial, a phase 1/2 multicenter, open-label, single-arm study. Genet Med 2021; 23:2433-2442. [PMID: 34385668 PMCID: PMC8631579 DOI: 10.1038/s41436-021-01290-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 07/13/2021] [Accepted: 07/13/2021] [Indexed: 11/08/2022] Open
Abstract
PURPOSE PIK3CA pathogenic variants in the PIK3CA-related overgrowth spectrum (PROS) activate phosphoinositide 3-kinase signaling, providing a rationale for targeted therapy, but no drug has proven efficacy and safety in this population. Our aim was to establish the six-month tolerability and efficacy of low-dose taselisib, a selective class I PI3K inhibitor, in PROS patients. METHODS Patients over 16 years with PROS and PIK3CA pathogenic variants were included in a phase IB/IIA multicenter, open-label single-arm trial (six patients at 1 mg/day of taselisib, then 24 at 2 mg/day). The primary outcome was the occurrence of dose limiting toxicity (DLT). Efficacy outcomes were the relative changes after treatment of (1) tissue volume at affected and unaffected sites, both clinically and on imaging; (2) cutaneous vascular outcomes when relevant; (3) biologic parameters; (4) quality of life; and (5) patient-reported outcomes. RESULTS Among 19 enrolled patients, 2 experienced a DLT (enteritis and pachymeningitis) leading to early trial termination (17 treated, 10 completed the study). No serious adverse reaction occurred in the 1 mg cohort (n = 6). No significant reduction in affected tissue volume was observed (mean -4.2%; p = 0.81; SD 14.01). Thirteen (76.4%) participants reported clinical improvement (pain reduction, chronic bleeding resolution, functional improvement). CONCLUSION Despite functional improvement, the safety profile of low-dose taselisib precludes its long-term use.
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A functional genomics screen identifying blood cell development genes in Drosophila by undergraduates participating in a course-based research experience. G3-GENES GENOMES GENETICS 2021; 11:6127131. [PMID: 33561251 PMCID: PMC8022729 DOI: 10.1093/g3journal/jkaa028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 11/06/2020] [Indexed: 11/13/2022]
Abstract
Undergraduate students participating in the UCLA Undergraduate Research Consortium for Functional Genomics (URCFG) have conducted a two-phased screen using RNA interference (RNAi) in combination with fluorescent reporter proteins to identify genes important for hematopoiesis in Drosophila. This screen disrupted the function of approximately 3500 genes and identified 137 candidate genes for which loss of function leads to observable changes in the hematopoietic development. Targeting RNAi to maturing, progenitor, and regulatory cell types identified key subsets that either limit or promote blood cell maturation. Bioinformatic analysis reveals gene enrichment in several previously uncharacterized areas, including RNA processing and export and vesicular trafficking. Lastly, the participation of students in this course-based undergraduate research experience (CURE) correlated with increased learning gains across several areas, as well as increased STEM retention, indicating that authentic, student-driven research in the form of a CURE represents an impactful and enriching pedagogical approach.
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Acute acral eruptions in children during the COVID-19 pandemic: Characteristics of 103 children and their family clusters. Ann Dermatol Venereol 2021; 148:94-100. [PMID: 33551211 PMCID: PMC7831537 DOI: 10.1016/j.annder.2020.11.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 10/15/2020] [Accepted: 11/26/2020] [Indexed: 12/20/2022]
Abstract
Background A marked increase in frequency of acute acral eruptions (AAE) was observed in children during the COVID-19 pandemic in the spring period. Objectives In this observational multicenter study, based on children with AAE, we aimed to assess the proportion of household members possibly infected by SARS-CoV-2. Methods We collected data from all children observed with AAE, prospectively from April 7, 2020 to June 22, 2020, and retrospectively since February 28, 2020. The primary outcome was the household infection rate, defined as the proportion of family clusters having at least one member with COVID-19 infection other than the child with AAE (“index child”). The definition of a case was based on characteristic clinical signs and a positive PCR or serology. Results The study included 103 children in 10 French departments and in Quebec. The median age was 13 years and the interquartile range [8–15], with a female-to-male ratio of 1/1.15. In children with AAE, all PCR tests were negative (n = 18), and serology was positive in 2/14 (14.3%) cases. We found no significant anomalies in the lab results. A total of 66 of the 103 families (64.1%) of included children had at least one other infected member apart from the index child. The total number of household members was 292, of whom 119 (40.8%) were considered possibly infected by SARS-CoV-2. No index children or households exhibited severe COVID-19. Discussion Among the 103 households included, 64.1% had at least one infected member. Neither children with AAE nor their households showed severe COVID-19.
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Acrosyndromes aigus pédiatriques au cours de l’épidémie de COVID-19 : étude des caractéristiques de la cellule familiale. Ann Dermatol Venereol 2020. [DOI: 10.1016/j.annder.2020.09.100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Intertrigo péri-alaire de l’enfant et de l’adolescent : étude descriptive prospective multicentrique d’une nouvelle entité clinique (Étude TRIGONASO). Ann Dermatol Venereol 2020. [DOI: 10.1016/j.annder.2020.09.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Reflections on year one of a new residency program: Lessons for future leaders from residents and educators. MEDEDPUBLISH 2020; 9:94. [PMID: 38058866 PMCID: PMC10697504 DOI: 10.15694/mep.2020.000094.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2023] Open
Abstract
This article was migrated. The article was marked as recommended. As the number of graduating medical students increases, the number of primary care residency positions is not keeping pace. One solution to this problem is the creation and accreditation of new residencies, although there is little literature describing the perspectives of the residents and educators who found new programs. Seven out of ten resident physicians who served as the inaugural interns in a new residency training program in pediatrics provide their reflection on the distinctive perspective they had from this experience. They have identified consensus themes in topic areas of strengths, challenges, and lessons learned from training in a new program. Themes applying to strengths of participating in a new residency training program were the opportunity to shape the program, individualized learning experience, and enthusiastic faculty. Challenges of a new program included missing upper level residents, diverse faculty expectations, and morale. Themes under lessons learned included resident engagement, expectations and feedback, and wellness. Each theme was then considered in the context of the medical education literature, underscoring the important balance that new program leaders must strike between structure and flexibility. This inaugural resident class has identified key challenges and opportunities to inform education leaders who are planning new GME training programs.
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Drug survival and postdrug survival of systemic treatments in a national French cohort of children with atopic dermatitis. Br J Dermatol 2020; 183:376-378. [PMID: 32037515 DOI: 10.1111/bjd.18941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Enfants atteints de psoriasis issus de la cohorte BIPE : évaluation de l’éligibilité des enfants traités par biothérapie dans la vie courante pour des études cliniques de phase III. Ann Dermatol Venereol 2019. [DOI: 10.1016/j.annder.2019.09.520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Enseignements de l’essai TOTEM évaluant le tasélisib, inhibiteur de la PI3 K, dans les syndromes hypertrophiques liés à PIK3CA. Ann Dermatol Venereol 2019. [DOI: 10.1016/j.annder.2019.09.031] [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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Age-specific characteristics of neutrophilic dermatoses and neutrophilic diseases in children. J Eur Acad Dermatol Venereol 2019; 33:2179-2187. [PMID: 31166045 DOI: 10.1111/jdv.15730] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 05/08/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND Our suggested 'modern' concepts of 'neutrophilic dermatoses' (ND) and 'neutrophilic disease' were based on observations in adult patients and have not been studied in paediatric patients. Only a minority of ND occurs in children, and little is known about age-specific characteristics. OBJECTIVES To describe age-specific characteristics of ND in children and to study whether our suggested 'modern' classification of ND may be applied to children. METHODS We conducted a retrospective multicentre study in a French cohort of 27 paediatric patients diagnosed with pyoderma gangrenosum (PG) or Sweet's syndrome (SS). RESULTS Demographics and distribution of typical/atypical forms were similar in patients diagnosed with PG and SS. Atypical ND were more frequent in infants (90%), when compared to young children (60%) and adolescents (33%). Neutrophilic disease was observed in 17/27 patients and was most frequent in infants. Neutrophilic disease of the upper respiratory tract, as well as cardiac neutrophilic disease, was only observed in infants, whereas other locations were similarly found in infants, young children and adolescents. In infants and young children, ND were associated with a large spectrum of general diseases, whereas in adolescents associations were limited to inflammatory bowel disease and Behçet's disease. CONCLUSIONS Our study describes the concept of ND in paediatric patients and shows that they have some characteristics different from ND occurring in adults. ND occurring in infants can be associated with a large spectrum of general diseases. Occurrence of neutrophilic disease is frequent in children. Thus, ND occurring in young paediatric patients should incite clinicians to schedule complementary explorations in order to search for involvement of other organs and to rule out monogenetic autoinflammatory syndromes.
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Biological treatments for paediatric psoriasis : a retrospective observational study on biological drug survival in daily practice in childhood psoriasis. J Eur Acad Dermatol Venereol 2019; 33:1984-1992. [DOI: 10.1111/jdv.15579] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 02/27/2019] [Indexed: 02/06/2023]
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Dermoscopic phenotype of pseudoxanthoma elasticum skin lesions: a study of 16 patients. J Eur Acad Dermatol Venereol 2019; 33:e262-e265. [PMID: 30803054 DOI: 10.1111/jdv.15534] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Phénotype dermoscopique des lésions cutanées de pseudoxanthome élastique dans une cohorte de 16 patients. Ann Dermatol Venereol 2018. [DOI: 10.1016/j.annder.2018.09.413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Establishing a Lu-177 Dotatate Therapy Program. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Clinical, dermoscopic, histological and molecular analysis of BAP1-inactivated melanocytic naevus/tumour in two familial cases of BAP1 syndrome. Br J Dermatol 2018; 179:973-975. [DOI: 10.1111/bjd.16740] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
Hepatosplenic cat-scratch disease (CSD) may cause prolonged fever. We present the case of a 4-year-old boy with confirmed hepatosplenic CSD with fever lasting 3 months despite use of multiple different antimicrobial agents. The patient became afebrile soon after corticosteroid therapy was started. Our case indicates corticosteroids may be useful in patients with hepatosplenic CSD and prolonged fever.
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Inclusion of Radiation Environment Variability in Total Dose Hardness Assurance Methodology. IEEE TRANSACTIONS ON NUCLEAR SCIENCE 2017; 64:325-331. [PMID: 28804156 PMCID: PMC5548493 DOI: 10.1109/tns.2016.2607021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Variability of the space radiation environment is investigated with regard to parts categorization for total dose hardness assurance methods. It is shown that it can have a significant impact. A modified approach is developed that uses current environment models more consistently and replaces the radiation design margin concept with one of failure probability during a mission.
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Profil des enfants porteurs d’une sclérodermie cutanée localisée résistants au méthotrexate. Ann Dermatol Venereol 2016. [DOI: 10.1016/j.annder.2016.09.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Essai de phase 2a du sirolimus dans les hypertrophies liées à PIK3CA (PROMISE) : données préliminaires de tolérance dans la cohorte française. Ann Dermatol Venereol 2016. [DOI: 10.1016/j.annder.2016.09.638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Dermatose à IgA linéaire de l’enfant : étude rétrospective multicentrique de 32 cas. Ann Dermatol Venereol 2016. [DOI: 10.1016/j.annder.2016.09.210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Long-term safety/tolerability of lanreotide autogel/depot (LAN) treatment for metastatic intestinal and pancreatic neuroendocrine tumours (NETs): Final results of the CLARINET open-label extension (OLE). Ann Oncol 2016. [DOI: 10.1093/annonc/mdw369.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Systemic treatments in childhood psoriasis: a French multicentre study on 154 children. Br J Dermatol 2016; 174:1118-21. [DOI: 10.1111/bjd.14326] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Psoriasis segmentaire : aspects cliniques et thérapeutiques. Une étude nationale de 27 observations. Ann Dermatol Venereol 2015. [DOI: 10.1016/j.annder.2015.10.101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Évaluation de la corticophobie chez les enfants atteints de psoriasis versus dermatite atopique : étude multicentrique nationale chez 122 enfants. Ann Dermatol Venereol 2015. [DOI: 10.1016/j.annder.2015.10.242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Abstract
BACKGROUND The parallel ridge pattern (PRP) is considered the dermoscopic hallmark of acral melanoma (AM). However, it was recently shown that approximately one-third of AMs do not display a PRP dermoscopically, rendering their detection more troublesome. OBJECTIVES To investigate the diagnostic accuracy of dermoscopic criteria for the diagnosis of AM. METHODS Dermoscopic images of consecutive cases of histopathologically diagnosed AMs and acral naevi with histopathological diagnosis or with at least 1 year of follow-up were evaluated by three independent investigators for the presence of predefined criteria. Crude and adjusted odds ratios and their corresponding 95% confidence intervals were calculated by univariate and multivariate logistic regression, respectively. Receiver operating characteristic curves were used to choose among competing classification schemes. RESULTS In total 603 lesions (472 naevi and 131 AMs) were included in the study. A scoring system (named BRAAFF) composed of six variables was associated with optimal area under the curve and sensitivity for the diagnosis of AM. This method includes four positive (irregular blotches, ridge pattern, asymmetry of structures and asymmetry of colours) and two negative predictors (furrow pattern and fibrillar pattern). CONCLUSIONS The BRAAFF checklist significantly improves the diagnostic accuracy of dermoscopy for the diagnosis of AM.
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2331 Prognostic value of neutrophil/lymphocyte ratio in intestinal and pancreatic neuroendocrine tumors: exploratory analysis of data from the CLARINET trial of lanreotide depot/autogel. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31247-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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2370 Relative risk analysis of safety profile of lanreotide autogel/depot vs. placebo in patients with pancreatic and intestinal neuroendocrine tumours. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31286-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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2374 Multivariate analysis of progression-free survival in the CLARINET study of lanreotide Autogel/Depot vs placebo identifies prognostic factors in neuroendocrine tumours. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31290-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Palmoplantar psoriasis, a frequent and severe clinical type of psoriasis in children. J Eur Acad Dermatol Venereol 2015; 30:1390-2. [DOI: 10.1111/jdv.13236] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Psoriasis and obesity in French children: a case-control, multicentre study. Br J Dermatol 2015; 172:1593-1600. [PMID: 25363889 DOI: 10.1111/bjd.13507] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/19/2014] [Indexed: 12/29/2022]
Abstract
BACKGROUND Obesity is more common in adults with psoriasis than in the general population, but there is a lack of data available regarding this association in children. OBJECTIVES To evaluate whether obesity was more common in French children with psoriasis of any clinical type or severity. METHODS A multicentre case-control study was performed in 23 French dermatology centres. Children without chronic or genetic inflammatory disease were selected as controls and matched for age, sex and dermatology centre. We used three weight cut-off categories to compare the two groups: overweight, overweight with abdominal obesity and overweight with obesity according to the French Health Authority guidelines. RESULTS A total of 261 children with psoriasis were included. The mean age was 9.8 years, 126 were boys and 135 were girls. Overall, 42.5% of these children had plaque psoriasis and 32.2% had severe psoriasis. There was no difference between the psoriasis and control groups when the frequency of children who were overweight was compared (20·7% in psoriasis group vs. 17·1% in control group; P = 0·18). Overweight with abdominal obesity including obesity (18·4% vs. 10·4%; P = 0·009) and obesity alone (10·0% vs. 3·1%; P = 0·001) were more common in the psoriasis group. CONCLUSIONS This study shows that being overweight with abdominal obesity and being obese is more common in children with psoriasis than in controls. The risk factors are the same as those that affect the French general population, i.e. female sex and having a parent who was overweight. The severity and clinical type of psoriasis do not affect overweight and obesity.
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Antitumor activity of lanreotide autogel (LAN) in enteropancreatic net patients: The CLARINET open-label extension (OLE) study. Exp Clin Endocrinol Diabetes 2015. [DOI: 10.1055/s-0035-1547777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Psoriasis palmoplantaire : forme clinique fréquente et sévère de psoriasis chez l’enfant. Ann Dermatol Venereol 2014. [DOI: 10.1016/j.annder.2014.09.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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35
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Traitements systémiques du psoriasis de l’enfant : étude multicentrique nationale chez 140 enfants. Ann Dermatol Venereol 2014. [DOI: 10.1016/j.annder.2014.09.156] [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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Facteurs favorisants des granulomes post-vaccinaux liés à l’aluminium : une enquête multicentrique cas-témoins. Ann Dermatol Venereol 2014. [DOI: 10.1016/j.annder.2014.09.067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Muon reconstruction efficiency and momentum resolution of the ATLAS experiment in proton-proton collisions at [Formula: see text] TeV in 2010. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS 2014; 74:3034. [PMID: 25814911 PMCID: PMC4371051 DOI: 10.1140/epjc/s10052-014-3034-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Accepted: 08/19/2014] [Indexed: 05/23/2023]
Abstract
This paper presents a study of the performance of the muon reconstruction in the analysis of proton-proton collisions at [Formula: see text] TeV at the LHC, recorded by the ATLAS detector in 2010. This performance is described in terms of reconstruction and isolation efficiencies and momentum resolutions for different classes of reconstructed muons. The results are obtained from an analysis of [Formula: see text] meson and [Formula: see text] boson decays to dimuons, reconstructed from a data sample corresponding to an integrated luminosity of 40 pb[Formula: see text]. The measured performance is compared to Monte Carlo predictions and deviations from the predicted performance are discussed.
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Abstract
Objectives Rotator cuff tears are among the most common and debilitating
upper extremity injuries. Chronic cuff tears result in atrophy and
an infiltration of fat into the muscle, a condition commonly referred
to as ‘fatty degeneration’. While stem cell therapies hold promise
for the treatment of cuff tears, a suitable immunodeficient animal
model that could be used to study human or other xenograft-based
therapies for the treatment of rotator cuff injuries had not previously
been identified. Methods A full-thickness, massive supraspinatus and infraspinatus tear
was induced in adult T-cell deficient rats. We hypothesised that,
compared with controls, 28 days after inducing a tear we would observe
a decrease in muscle force production, an accumulation of type IIB
fibres, and an upregulation in the expression of genes involved
with muscle atrophy, fibrosis and inflammation. Results Chronic cuff tears in nude rats resulted in a 30% to 40% decrease
in muscle mass, a 23% reduction in production of muscle force, and
an induction of genes that regulate atrophy, fibrosis, lipid accumulation,
inflammation and macrophage recruitment. Marked large lipid droplet
accumulation was also present. Conclusions The extent of degenerative changes in nude rats was similar to
what was observed in T-cell competent rats. T cells may not play
an important role in regulating muscle degeneration following chronic
muscle unloading. The general similarities between nude and T-cell
competent rats suggest the nude rat is likely an appropriate preclinical
model for the study of xenografts that have the potential to enhance
the treatment of chronically torn rotator cuff muscles. Cite this article: Bone Joint Res 2014;3:262–72.
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39
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Quality of Life (Qol) with Lanreotide Autogel (Lan) Vs. Placebo in Patients with Enteropancreatic Neuroendocrine Tumours (Ep-Nets): Results from the Clarinet Phase III Study. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu345.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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40
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The differential production cross section of the [Formula: see text](1020) meson in [Formula: see text] = 7 TeV [Formula: see text] collisions measured with the ATLAS detector. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS 2014; 74:2895. [PMID: 25814898 PMCID: PMC4371126 DOI: 10.1140/epjc/s10052-014-2895-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Accepted: 05/08/2014] [Indexed: 05/03/2023]
Abstract
A measurement is presented of the [Formula: see text] production cross section at [Formula: see text] = 7 TeV using [Formula: see text] collision data corresponding to an integrated luminosity of 383 [Formula: see text], collected with the ATLAS experiment at the LHC. Selection of [Formula: see text](1020) mesons is based on the identification of charged kaons by their energy loss in the pixel detector. The differential cross section is measured as a function of the transverse momentum, [Formula: see text], and rapidity, [Formula: see text], of the [Formula: see text](1020) meson in the fiducial region 500 [Formula: see text] 1200 MeV, [Formula: see text] 0.8, kaon [Formula: see text] 230 MeV and kaon momentum [Formula: see text] 800 MeV. The integrated [Formula: see text]-meson production cross section in this fiducial range is measured to be [Formula: see text] = 570 [Formula: see text] 8 (stat) [Formula: see text] 66 (syst) [Formula: see text] 20 (lumi) [Formula: see text].
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41
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Capillarite purpurique chronique diffuse du petit enfant. Ann Dermatol Venereol 2014; 141:331-5. [DOI: 10.1016/j.annder.2014.01.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Revised: 10/09/2013] [Accepted: 01/10/2014] [Indexed: 11/25/2022]
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42
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Measurement of the inclusive isolated prompt photons cross section in ppcollisions at s=7 TeVwith the ATLAS detector using 4.6 fb−1. Int J Clin Exp Med 2014. [DOI: 10.1103/physrevd.89.052004] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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43
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Observation of B(s)(0) → J/ψ f1(1285) decays and measurement of the f1(1285) mixing angle. PHYSICAL REVIEW LETTERS 2014; 112:091802. [PMID: 24655242 DOI: 10.1103/physrevlett.112.091802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Indexed: 06/03/2023]
Abstract
Decays of B(s)(0) and B(0) mesons into J/ψ π+π-π+π- final states, produced in pp collisions at the LHC, are investigated using data corresponding to an integrated luminosity of 3 fb-1 collected with the LHCb detector. B(s)(0) → J/ψ f1(1285) decays are seen for the first time, and the branching fractions are measured. Using these rates, the f1(1285) mixing angle between strange and nonstrange components of its wave function in the qq structure model is determined to be ±(24.0-2.6-0.8+3.1+0.6)°. Implications on the possible tetraquark nature of the f1(1285) are discussed.
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Measurements of indirect CP asymmetries in D0 → K- K+ and D0 → π- π+ decays. PHYSICAL REVIEW LETTERS 2014; 112:041801. [PMID: 24580438 DOI: 10.1103/physrevlett.112.041801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Indexed: 06/03/2023]
Abstract
A study of indirect CP violation in D0 mesons through the determination of the parameter AΓ is presented using a data sample of pp collisions, corresponding to an integrated luminosity of 1.0 fb(-1), collected with the LHCb detector and recorded at the center-of-mass energy of 7 TeV at the LHC. The parameter AΓ is the asymmetry of the effective lifetimes measured in decays of D0 and D0 mesons to the CP eigenstates K- K+ and π- π+. Fits to the data sample yield AΓ(KK)=(-0.35±0.62±0.12)×10(-3) and AΓ(ππ)=(0.33±1.06±0.14)×10(-3), where the first uncertainties are statistical and the second systematic. The results represent the world's best measurements of these quantities. They show no difference in AΓ between the two final states and no indication of CP violation.
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Measurement of CP violation in the phase space of B± → K+ K- π± and B± → π+ π- π± decays. PHYSICAL REVIEW LETTERS 2014; 112:011801. [PMID: 24483886 DOI: 10.1103/physrevlett.112.011801] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Indexed: 06/03/2023]
Abstract
The charmless decays B± → K+ K- π± and B± → π+ π- π± are reconstructed in a data set of pp collisions with an integrated luminosity of 1.0 fb(-1) and center-of-mass energy of 7 TeV, collected by LHCb in 2011. The inclusive charge asymmetries of these modes are measured to be A(CP)(B± → K+ K- π±) = -0.141±0.040 (stat)±0.018 (syst)±0.007(J/ψ K±) and A(CP)(B± → π+ π- π±) = 0.117±0.021 (stat)±0.009 (syst)±0.007(J/ψ K±), where the third uncertainty is due to the CP asymmetry of the B± → J/ψK± reference mode. In addition to the inclusive CP asymmetries, larger asymmetries are observed in localized regions of phase space.
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46
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Measurement of D0-D0 mixing parameters and search for CP violation using D0 → K+ π- decays. PHYSICAL REVIEW LETTERS 2013; 111:251801. [PMID: 24483738 DOI: 10.1103/physrevlett.111.251801] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Indexed: 06/03/2023]
Abstract
Measurements of charm mixing parameters from the decay-time-dependent ratio of D0 → K+ π- to D0 → K- π+ rates and the charge-conjugate ratio are reported. The analysis uses data, corresponding to 3 fb(-1) of integrated luminosity, from proton-proton collisions at 7 and 8 TeV center-of-mass energies recorded by the LHCb experiment. In the limit of charge-parity (CP ) symmetry, the mixing parameters are determined to be x'2=(5.5±4.9)×10(-5), y'=(4.8±1.0)×10(-3), and RD=(3.568±0.066)×10(-3). Allowing for CP violation, the measurement is performed separately for D0 and D0 mesons yielding AD=(-0.7±1.9)%, for the direct CP-violating asymmetry, and 0.75<|q/p|<1.24 at the 68.3% confidence level, for the parameter describing CP violation in mixing. This is the most precise determination of these parameters from a single experiment and shows no evidence for CP violation.
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Measurement of jet shapes in top-quark pair events at [Formula: see text] using the ATLAS detector. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS 2013; 73:2676. [PMID: 25814852 PMCID: PMC4370876 DOI: 10.1140/epjc/s10052-013-2676-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Revised: 11/22/2013] [Indexed: 05/30/2023]
Abstract
A measurement of jet shapes in top-quark pair events using 1.8 fb-1 of [Formula: see text]pp collision data recorded by the ATLAS detector at the LHC is presented. Samples of top-quark pair events are selected in both the single-lepton and dilepton final states. The differential and integrated shapes of the jets initiated by bottom-quarks from the top-quark decays are compared with those of the jets originated by light-quarks from the hadronic W-boson decays [Formula: see text] in the single-lepton channel. The light-quark jets are found to have a narrower distribution of the momentum flow inside the jet area than b-quark jets.
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Mastocytose cutanée : analyse longitudinale d’une cohorte pédiatrique au statut mutationnel KIT connu. Ann Dermatol Venereol 2013. [DOI: 10.1016/j.annder.2013.09.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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49
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Measurement of J/ ψ polarization in pp collisions at [Formula: see text]. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS 2013; 73:2631. [PMID: 25814848 PMCID: PMC4370894 DOI: 10.1140/epjc/s10052-013-2631-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 10/15/2013] [Indexed: 05/28/2023]
Abstract
An angular analysis of the decay J/ψ→μ+μ- is performed to measure the polarization of prompt J/ψ mesons produced in pp collisions at [Formula: see text]. The dataset corresponds to an integrated luminosity of 0.37 fb-1 collected with the LHCb detector. The measurement is presented as a function of transverse momentum, pT, and rapidity, y, of the J/ψ meson, in the kinematic region 2
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50
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Measurement of form-factor-independent observables in the decay B0→K(*0)μ(+)μ(-). PHYSICAL REVIEW LETTERS 2013; 111:191801. [PMID: 24266467 DOI: 10.1103/physrevlett.111.191801] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Indexed: 06/02/2023]
Abstract
We present a measurement of form-factor-independent angular observables in the decay B(0)→K*(892)(0)μ(+)μ(-). The analysis is based on a data sample corresponding to an integrated luminosity of 1.0 fb(-1), collected by the LHCb experiment in pp collisions at a center-of-mass energy of 7 TeV. Four observables are measured in six bins of the dimuon invariant mass squared q² in the range 0.1<q²<19.0 GeV²/c(4). Agreement with recent theoretical predictions of the standard model is found for 23 of the 24 measurements. A local discrepancy, corresponding to 3.7 Gaussian standard deviations is observed in one q² bin for one of the observables. Considering the 24 measurements as independent, the probability to observe such a discrepancy, or larger, in one is 0.5%.
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