22 research outputs found
Proteomic analysis of stress-responsive proteins in Arabidopsis thaliana rosette leaves.
No full textIs Portomesenteric Vein Thrombosis after Laparoscopic Sleeve Gastrectomy Related to Short-Course Prophylaxis of Thromboembolism? A Monocentric Retrospective Analysis about an Infrequent but Not Rare Complication and Review of the Literature
No full textBackground: Portomesenteric vein thrombosis (PMVT) is considered a rare and potentially fatal complication of bariatric surgery. Laparoscopic sleeve gastrectomy (LSG) is one of the most performed bariatric procedures in the world. PMVT in LSG was first reported in 2009 by Berthet et al. in a thrombophilic patient. No data exist regarding the real prevalence of this complication specifically after LSG. Methods: We examined retrospectively all the clinical records of patients who underwent LSG for morbid obesity from January 2011 to December 2016. Moreover, we performed a literature search of PubMed, Medscape, and EMBASE databases, in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Results: 2854 patients underwent LSG for morbid obesity from January 2011 to December 2016. The retrospective analysis of our records revealed only 1 case of PMVT. The 18 studies selected include 62 cases of PMVT after LSG with a prevalence of 0.52% (ranging from 0.2% to 1.81%) and a mortality rate of 1.61%. Conclusions: PMVT is an infrequent but not rare complication in patients who undergo LSG. Short-course antithrombotic prophylaxis (<10 days) could increase the risk of this complication. The authors recommend a postoperative prophylaxis with sodium enoxaparin 40 mg sc once a day for 4 weeks. PMVT mortality in patients who undergo LSG is lower than other causes of portal vein thrombosis (hepatic cirrhosis, tumors, myeloproliferative disorders, etc.) If risk factors for PMVT are present preoperatively, the authors recommend a prophylaxis with sodium enoxaparin 40 mg sc twice daily for 4 weeks
Au sujet de l'hamiltonien de spin applicable à un monocristal appartenant au système orthorhombique
No full textLa résonance paramagnétique électronique d'un monocristal de glycocolle irradié par des rayons gamma
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Effect of short-term cadmium stress on Populus nigra L. detached leaves
No full textPollution by toxic metals, accumulating into soils as result of human activities, is a worldwide major concern in industrial countries. Plants exhibit different degrees of tolerance to heavy metals, as a consequence of their ability to exclude or accumulate them in particular tissues, organs or sub-cellular compartments. Molecular information about cellular processes affected by heavy metals is still largely incomplete. As a fast-growing, highly tolerant perennial plant species, poplar has become a model for environmental stress response investigations. To study the short-term effects of cadmium accumulation in leaves, we analyzed photosystem II (PSII) quantum yield, hydrogen peroxide (H2O2) generation, hormone levels variation, as well as proteome profile alteration of 50μM CdSO4 vacuum-infiltrated poplar (Populus nigra L.) detached leaves. Cadmium management brought about an early and sustained production of hydrogen peroxide, an increase of abscisic acid, ethylene and gibberellins content, as well as a decrease in cytokinins and auxin levels, whereas photosynthetic electron transport was unaffected. Proteomic analysis revealed that twenty-one proteins were differentially induced in cadmium-treated leaves. Identification of fifteen polypeptides allowed to ascertain that most of them were involved in stress response while the remaining ones were involved in photosynthetic carbon metabolism and energy production
Sur l'origine d'un déplacement radiatif observé en modulation spatiotemporelle des jets moléculaires
No full textWhen a modular beam is irradiated near the molecular resonance by an irradiation cell having a periodic structure, one observes a spectrum, the components of which can have a displacement of the Bloch-Siegert type and a displacement bound to the interaction time. We propose an analysis of the second one which we explain by interferences of transition probabilities.Au voisinage d'une résonance d'un jet moléculaire, le spectre de modulation produit par une cellule d'irradiation ayant une structure spatiale périodique, montre des composantes subissant un déplacement de type Bloch-Siegert et un autre déplacement lié au temps d'interaction et qui résulte des interférences des probabilités de transition dues aux deux composantes résonnante et antirésonnante du champ d'irradiation
Effet du Spin Électronique Sur La Conduction De Semiconducteurs Impliques Dans des Jonctions de Type Semiconducteur-Métal
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