Vrije Universiteit Brussel

About: Vrije Universiteit Brussel is a education organization based out in Brussels, Belgium. It is known for research contribution in the topics: Population & Context (language use). The organization has 14295 authors who have published 38258 publications receiving 1203970 citations. The organization is also known as: VUB.

A lower ongoing pregnancy rate can be expected when GnRH agonist is used for triggering final oocyte maturation instead of HCG in patients undergoing IVF with GnRH antagonists

Abstract: Background Eliciting an endogenous LH surge by GnRH-agonist for the induction of final oocyte maturation may be more physiological compared with the administration of HCG. However, the efficacy of this intervention in patients treated for IVF with GnRH antagonists remains to be assessed. Methods 106 patients were randomized to receive either 10 000 IU urinary HCG or 0.2 mg Triptorelin for triggering final oocyte maturation. Ovarian stimulation for IVF was performed with a fixed dose of 200 IU recombinant FSH and GnRH antagonist was started on stimulation day 6. Luteal phase was supported with micronized vaginal progesterone and oral estradiol. The study was monitored continuously for safety and stopping rules were established. Results No significant differences were present in the number of cumulus-oocyte complexes retrieved, in the proportion of metaphase II oocytes, in fertilization rates or in the number and quality of the embryos transferred between the two groups. However, a significantly lower probability of ongoing pregnancy in the GnRH agonist arm prompted discontinuation of the trial, according to the stopping rules established (odds ratio 0.11; 95% confidence interval 0.02-0.52). Conclusions Lower probability of ongoing pregnancy can be expected when GnRH agonist is used for triggering final oocyte maturation instead of HCG in patients undergoing ovarian stimulation for IVF with GnRH antagonists.

Gastrin Stimulates β-Cell Neogenesis and Increases Islet Mass From Transdifferentiated but Not From Normal Exocrine Pancreas Tissue

Abstract: It is still unclear which factors regulate pancreatic regeneration and β-cell neogenesis and which precursor cells are involved. We evaluated the role of intravenously infused gastrin in regenerating pancreas of duct-ligated rats. The ligation of exocrine ducts draining the splenic half of the pancreas resulted in acinoductal transdifferentiation within the ligated part but not in the unligated part. We found that infusion of gastrin from day 7 to 10 postligation resulted in a doubling of the β-cell mass in the ligated part as measured by morphometry. This increase in insulin-expressing cells was not associated with increased proliferation, hypertrophy, or reduced cell death of the β-cells. Furthermore, we found an increased percentage of single, extra-insular β-cells and small β-cell clusters induced by gastrin infusion. These changes occurred only in the ligated part of the pancreas, where transdifferentiation of the exocrine acinar cells to ductlike cells (metaplasia) had occurred, and was not found in the normal unaffected pancreatic tissue. In conclusion, we demonstrate that administration of gastrin stimulates β-cell neogenesis and expansion of the β-cell mass from transdifferentiated exocrine pancreas.

Exercise therapy improves both mental and physical health in patients with major depression

Abstract: Purpose: to present clinical guidelines for exercise therapy in depressed patients derived from recent meta-analyses. Method: four meta-analyses on effects of physical exercise on mental and physical in depression were analysed. Results: For mild to moderate depression the effect of exercise may be comparable to antidepressant medication and psychotherapy; for severe depression exercise seems to be a valuable complementary therapy to the traditional treatments. Depression is associated with a high incidence of co-morbid somatic illnesses, especially cardiovascular diseases, type 2 diabetes and metabolic syndrome. Exercise is extremely powerful in preventing and treating these diseases. Physical exercise is an outstanding opportunity for the treatment of patients who have a mix of mental and physical health problems. Exercise therapy also improves body image, patient s coping strategies with stress, quality of life and independence in activities of daily living in older adults. Conclusions: Physical therapists should be aware, that several characteristics of major depression (e.g. loss of interest, motivation and energy, generalised fatigue, a low self-worth and self-confidence, fear to move, and psychosomatic complaints) and physical health problems interfere with participation in exercise. Therefore, motivational strategies should be incorporated in exercise interventions to enhance the patients’ motivation and adherence in exercise programs.

A framework for Higgs characterisation

Abstract: We introduce a framework, based on an effective field theory approach, that allows one to perform characterisation studies of the boson recently discovered at the LHC, for all the relevant channels and in a consistent, systematic and accurate way. The production and decay of such a boson with various spin and parity assignments can be simulated by means of multi-parton, tree-level matrix elements and of next-to-leading order QCD calculations, both matched with parton showers. Several sample applications are presented which show, in particular, that beyond-leading-order effects in QCD have nontrivial phenomenological implications.

Arginase-1 and Ym1 are markers for murine, but not human, alternatively activated myeloid cells.

Abstract: In an interesting paper, Scotton et al. ([1][1]) reported the effects of IL-13 on the transcriptional profile of human monocytes. Comparing their results with studies analyzing the profile induced by IL-4 in murine macrophages ([2][2], [3][3]), the authors notice some differences, giving as examples