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Association between Premenstrual Dysphoric Disorder and Systemic Lupus Erythematosus: Exacerbation of Major Depression Symptoms?

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Open Journal of Rheumatology and Autoimmune Diseases 2013年第4期3卷 209-215页

作者： Sílvia Fernanda Lima de Moura cal lorena cal alonso Amanda Galvao de Almeida Mittermayer Barreto Santiago Ângela Miranda-Scippa Medicine and Human Health Post-Graduation Program Fundacao Bahiana para o Desenvolvimento das CiênciasEscola Bahiana de Medicina e Saúde PúblicaBahiaBrazil Medicine Graduation Program Faculdade de Tecnologia e CiênciasBahiaBrazil Department of Psychiatry and Laboratório Interdisciplinar de Neurociências Clínicas(LiNC) Universidade Federal de Sao PauloSao PauloBrazil Medicine and Human Health Post-Graduation Program Fundacao Bahiana Para o Desenvolvimento das CiênciasEscola Bahiana de Medicina e Saúde PúblicaBahiaBrazil Department of Neuroscience and Mental Health Universida de Federal da BahiaBahiaBrazil

Introduction: Systemic Lupus Erythematosus (SLE) usually presents neuropsychiatric manifestations, such as psychosis, convulsion, mood disorder and chronic headache, with mood disorder being the most prevalent. It is also known that other psychiatric disorders and menstrual cycle disorders are frequent in SLE. The aim of this study was to describe for the first time the frequency of premenstrual dysphoric disorder in patients with SLE diagnosis, and its association with depression and anxiety. Material and Methods: An evaluation was made of 62 (sixty-two) patients with diagnosis of SLE, based on the American College of Rheumatology criteria, who received follow-up care at an ambulatory reference center. The patients were submitted to a sociodemographic evaluation questionnaire, upon which the Mini International Neuropsychiatric Interview (MINI PLUS), Brazilian Version 5.0.0, was used to evaluate the diagnosis. Results: Twenty (32%) patients were found to have premenstrual dysphoric disorder, and there was a statistically significant association with major depression (p = 0.010), but no statistical significance was found with dysthymia (p = 0.063) or anxiety (p = 0.223). Conclusions: The frequency of premenstrual dysphoric disorder (PMDD) in patients with SLE was high, as well as the frequency of major depression in this group. There was an association between these two disorders.

关键词： Systemic Lupus Erythematous Depression Anxiety Premenstrual Dysphoric Disorder Premenstrual Syndrome

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Endocytic Trafficking towards the Vacuole Plays a Key Role in the Auxin Receptor SCF^TIR-Independent Mechanism of Lateral Root Formation in A. thaliana

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Molecular Plant 2012年第6期5卷 1195-1209页

作者： Patricio Perez-Henrique Natasha V. Raikhel lorena Norambuena Plant Molecular Biology Laboratory Department of Biology Faculty of Sciences University of Chile Santiago Chile Millenium Nucleus in Plant Cell Biotechnology Chile Center for Plant Cell Biology and Department of Botany and Plant Sciences University of California Riverside CA 92521 USA

Plants＇ developmental plasticity plays a pivotal role in responding to environmental conditions. One of the most plastic plant organs is the root system. Different environmental stimuli such as nutrients and water deficiency may induce lateral root formation to compensate for a low level of water and/or nutrients. It has been shown that the hor- mone auxin tunes lateral root development and components for its signaling pathway have been identified. Using chemi- cal biology, we discovered an Arabidopsis thaliana lateral root formation mechanism that is independent of the auxin receptor SCFTM. The bioactive compound Sortin2 increased lateral root occurrence by acting upstream from the morpho- logical marker of lateral root primordium formation, the mitotic activity. The compound did not display auxin activity. At the cellular level, Sortin2 accelerated endosomal trafficking, resulting in increased trafficking of plasma membrane recy- cling proteins to the vacuole. Sortin2 affected Late endosome/PVC/MVB trafficking and morphology. Combining Sortin2 with well-known drugs showed that endocytic trafficking of Late E/PVC/MVB towards the vacuole is pivotal for Sortin2- induced SCFTm-independent lateral root initiation. Our results revealed a distinctive role for endosomal trafficking in the promotion of lateral root formation via a process that does not rely on the auxin receptor complex SCFTM.

关键词： lateral root development endocytic trafficking Sortin2 endosomes Arabidopsis.

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Effect of psychological stress on gastric motility assessed by electrical bio-impedance

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World Journal of Gastroenterology 2012年第36期18卷 5027-5033页

作者： María Raquel Huerta-Franco Miguel Vargas-Luna Juana Berenice Montes-Frausto Ismael Morales-Mata lorena Ramirez-Padilla Department of Applied Sciences to Work Health Science DivisionUniversity of Guanajuato37320 LeonGuanajuatoMexico Department of Physical Engineering Science and Engineering DivisionUniversity of Guanajuato37150 LeonGuanajuatoMexico

AIM:To evaluate gastric motility using electrical bioimpedance(EBI) and gastric changes as a result of stress induced by psychological ***:A group of 57 healthy women,aged 40-60 years,was recruited,and a clinical history and physical examination were *** women were free from severe anxiety,chronic or acute stress,severe depression,mental diseases and conditions that affect gastric *** women were evaluated under fasting conditions,and using a four-electrode configuration,the gastric signals were obtained through a BIOPAC MP-150 *** volunteers were evaluated using the following paradigm:basal state,recording during the Stroop Test,intermediate resting period,recording during the Raven Test,and a final resting *** analyzed the relative areas of the frequency spectrum:A1(1-2 cpm),A2(2-4 cpm),A3(4-8 cpm),and A4(8-12 cpm),as well as the median of area A2 + *** data were analyzed by an autoregressive method using a Butterworth filter with MatLab and *** of variance(ANOVA) and Friedman ANOVA(for nonparametric variables) were performed;in addition,pairs of groups were compared using the T dependent and Wilcoxon T ***:The results of the main values of area A2 were not significantly different comparing the five steps of the experimental ***,there was a tendency of this A2 region to decrease during the stress tests,with recuperation at the final resting *** an extended gastric region was considered(1-4 cpm),significant differences with the psychological stress tests were present(F = 3.85,P = 0.005).The A3 region also showed significant changes when the stress psychological tests were administered(F = 7.25,P cal bio-impedance(EBI) was the median of the area under the region from 2 to 8 cpm(A2 + A3)

关键词： Psychological stress Bio-impedance Gas-tric motility

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