Perceived Cognitive Impairment in Breast Cancer Survivors and Its Relationships with Psychological Factors

Cognitive complaints are common adverse effects for breast cancer survivors, with potential negative impacts on quality of life or return to work. Identifying subjects at risk could allow to reduce cognitive disorders or to set up appropriate care. In this study we explored current cognitive complaints reported by breast cancer survivors, using the Functional Assessment of Cancer Therapy-Cognition (FACT-Cog) questionnaire and examined the relationships between current cognitive complaints and current psychological symptoms (especially post-traumatic stress symptoms). This large survey showed that about half of breast cancer survivors reported cognitive complaints after cancer treatments. These complaints were mainly associated with chemotherapy, age, self-reported sleep difficulties, the frequency of psychotropic treatments and psychological factors including post-traumatic stress symptoms or. Some modifiable risk factors should be detected early to reduce persistent cognitive complaints after cancer, including sleep difficulties and post-traumatic stress symptoms

Biomimetic versus sintered macroporous calcium phosphate scaffolds enhanced bone regeneration and human mesenchymal stromal cell engraftment in calvarial defects

In contrast to sintered calcium phosphates (CaPs) commonly employed as scaffolds to deliver mesenchymal stromal cells (MSCs) targeting bone repair, low temperature setting conditions of calcium deficient hydroxyapatite (CDHA) yield biomimetic topology with high specific surface area. In this study, the healing capacity of CDHA administering MSCs to bone defects is evaluated for the first time and compared with sintered beta-tricalcium phosphate (ß-TCP) constructs sharing the same interconnected macroporosity. Xeno-free expanded human bone marrow MSCs attached to the surface of the hydrophobic ß-TCP constructs, while infiltrating the pores of the hydrophilic CDHA. Implantation of MSCs on CaPs for 8 weeks in calvaria defects of nude mice exhibited complete healing, with bone formation aligned along the periphery of ß-TCP, and conversely distributed within the pores of CDHA. Human monocyte-osteoclast differentiation was inhibited in vitro by direct culture on CDHA compared to ß-TCP biomaterials and indirectly by administration of MSC-conditioned media generated on CDHA, while MSCs increased osteoclastogenesis in both CaPs in vivo. MSC engraftment was significantly higher in CDHA constructs, and also correlated positively with bone in-growth in scaffolds. These findings demonstrate that biomimetic CDHA are favorable carriers for MSC therapies and should be explored further towards clinical bone regeneration strategies. Statement of significance Delivery of mesenchymal stromal cells (MSCs) on calcium phosphate (CaP) biomaterials enhances reconstruction of bone defects. Traditional CaPs are produced at high temperature, but calcium deficient hydroxyapatite (CDHA) prepared at room temperature yields a surface structure more similar to native bone mineral. The objective of this study was to compare the capacity of biomimetic CDHA scaffolds with sintered ß-TCP scaffolds for bone repair mediated by MSCs for the first time. In vitro, greater cell infiltration occurred in CDHA scaffolds and following 8 weeks in vivo, MSC engraftment was higher in CDHA compared to ß-TCP, as was bone in-growth. These findings demonstrate the impact of material features such as surface structure, and highlight that CDHA should be explored towards clinical bone regeneration strategies.Peer ReviewedPostprint (author's final draft

Dialogues artistiques avec les passés de l'Égypte

De l’architecture aux arts décoratifs et de la peinture au théâtre, ce recueil de textes traite d’œuvres dialoguant avec le patrimoine égyptien dans toutes ses composantes. La notion « d’égyptianisme » se trouve ainsi examinée dans la plus large variété de ses acceptions artistiques, architecturales et critiques, dans le monde occidental comme en Égypte. Les textes révèlent un historicisme artistique de veine égyptienne qui ne se cantonnerait ni à la référence antique, ni au monde occidental : nombreux sont les peintres, les sculpteurs, les cinéastes, les architectes… d’Égypte à avoir intégré des représentations du passé national – pharaonique, copte, médiéval, ottoman, et désormais khédivial ou nassérien – dans leur pratique artistique. À l’encontre de l’image habituelle de l’Égyptomanie, c’est un panorama plus riche et plus diversifié qui prend corps ici à travers divers médias et contextes nationaux. Le présent recueil trouve sa source dans un colloque international organisé à la faveur de la venue à Paris de l’exposition « Le théorème de Néfertiti : itinéraire de l’œuvre d’art, la création des icônes » présentée à l’Institut du monde arabe en 2013. Ce colloque s’est tenu les 26 et 27 juin 2013 en partenariat avec Mathaf : Arab Museum of Modern Art (Doha) sous l’intitulé « L’Égypte en ses miroirs ; art, architecture et critique, à demeure et au-delà (XIXe-XXe siècles) »

Contribution des tests Platelia au diagnostic précoce de candidose profonde chez des patients neutropéniques infectés par Candida tropicalis

LILLE2-BU Santé-Recherche (593502101) / SudocSudocFranceF

Valoriser travail collaboratif et créativité dès la licence : La démarche scientifique en action

International audienceWe describe here the succession of scientific projects proposed all along our 3 year-bachelor teaching program to the students of Villebon - Georges Charpak Institute, with the aim of forming scientists with novel and diverse profiles. Innovative pedagogy and collaborative projects are used from the very beginning of the 1st year in order to develop creativity and appetite for sciences. Creativity should then stimulate pleasure for learning basics.Nous décrivons ici comment nous avons articulé une série de projets scientifiques en 1ère et 2ème années de Licence « Sciences et Technologie » de l'Institut Villebon-Georges Charpak pour amener progressivement les étudiants à coopérer et à développer leur créativité scientifique. Cette construction est utilisée pour servir de socle à une reprise de confiance en soi de la part d'étudiants pouvant présenter initialement des fragilités scolaires. La créativité n'intervient donc pas après avoir consolidé les savoirs de base mais, au contraire, comme stimulant pour ouvrir l'appétit d'apprendre

Evolution empirique d’une formation vers l’approche programme

International audienc

Histone deacetylase 6 inhibition compensates for the transport deficit in Huntington's disease by increasing tubulin acetylation.

peer reviewe

Contribution of the Platelia Candida-Specific Antibody and Antigen Tests to Early Diagnosis of Systemic Candida tropicalis Infection in Neutropenic Adults

The Platelia Candida-specific antigen and antibody assays (Bio-Rad Laboratories) were used to test serial serum samples from seven neutropenic adult patients with hematological malignancies who had developed systemic Candida tropicalis infections. The diagnosis of candidiasis was based on a positive blood culture (all seven patients) and the isolation of C. tropicalis from a normally sterile site (six patients). All patients received early antifungal therapy with amphotericin B and/or an azole derivative and had successful outcomes. When the combined assays were applied to sera collected at different time points before and after the first positive blood culture, all patients tested positive. In six patients, at least one positive test was obtained with sera collected, on average, 5 days (range, 2 to 10 days) prior to the first positive blood culture, while blood cultures were constantly negative. High and persistent mannanemias were detected in all patients during the neutropenic period. In five patients, an increased antibody response was detected when the patients recovered from aplasia. Controls consisted of 48 serum samples from 12 febrile neutropenic patients with aspergillosis (n = 4), bacteremia (n = 4), or no evidence of infection (n = 4). A low level of mannanemia was detected in only one serum sample, and none showed significant Candida antibody titers. Our data thus confirm the value of the combined detection of mannanemia and antimannan antibodies in individuals at risk of candidemia and suggest that in neutropenic patients, an approach based on the regular monitoring of both markers could contribute to the earlier diagnosis of C. tropicalis systemic infection

Cognitive complaints in cancer survivors and expectations for support: Results from a web–based survey

Abstract Background Cognitive complaints are common in cancer survivors. We aimed to assess cognitive complaints in cancer survivors and the associated factors using a large web–based survey. Methods This online survey was proposed to cancer survivors. Participants completed several questions on cognitive complaints experience, expectations for support of cognitive difficulties, preexisting knowledge about chemotherapy–associated cognitive problems and demographic and medical variables. We used multivariable logistic regression models to estimate Odds Ratios and 95% confidence intervals to estimate associations. Results Among 1610 eligible participants (median age 52 [21‐84]), >85% (n = 1393) were breast cancer survivors. Median postcancer treatment time (excluding hormone therapy) was 2.83 years [0.8‐33]. Seventy five percent of the participants (n = 1214) reported cognitive complaints related to cancer treatments. Cognitive difficulties had an impact on work resumption for 76% of the participants (n = 754/982). Most cancer survivors would like to receive support (75%, n = 909) and especially cognitive training (72%, n = 658). Chemotherapy was strongly associated with cognitive complaints (multivariable OR = 3.67, 95% CI: 2.80‐4.82). Self–reported sleep difficulties (ORoften vs. never = 2.84, 95% CI: 1.80‐4.47), preexisting knowledge about chemotherapy–associated cognitive problems (ORNo vs. Yes = 1.69, 95% CI: 1‐29‐2.22) and age (OR21‐64 vs. ≥65 = 0.37, 95% CI: 0.23‐0.58) were also associated with cancer–related cognitive complaints. Conclusions According to this large web–based survey including mainly breast cancer survivors, cognitive complaints were reported by three quarters of participants, which reinforces that cognitive difficulties are a major issue in cancer survivors. Chemotherapy, self–reported sleep difficulties and preexisting knowledge about chemotherapy–associated cognitive problems were strongly associated with cancer–related cognitive complaints. Most cancer survivors wished to receive support and especially cognitive training