3,448 research outputs found
Mindfulness and Symptoms o f Depression and Anxiety in the General Population: The Mediating Roles of Worry, Rumination, Reappraisal and Suppression
The present study examined the effects of mindfulness on depression and anxiety, both direct and indirect through the mediation of four mechanisms of emotional regulation: worry, rumination, reappraisal and suppression. Path analysis was applied to data collected from an international and non-clinical sample of 1151 adults, including both meditators and non-meditators, who completed an online questionnaire battery. Our results show that mindfulness are related to lower levels of depression and anxiety both directly and indirectly. Suppression, reappraisal, worry and rumination all acted as significant mediators of the relationship between mindfulness and depression. A similar picture emerged for the relationship between mindfulness and anxiety, with the difference that suppression was not a mediator. Our data also revealed that the estimated number of hours of mindfulness meditation practice did not affect depression or anxiety directly but did reduce these indirectly by increasing mindfulness. Worry and rumination proved to be the most potent mediating variables. Altogether, our results confirm that emotional regulation plays a significant mediating role between mindfulness and symptoms of depression and anxiety in the general population and suggest that meditation focusing on reducing worry and rumination may be especially useful in reducing the risk of developing clinical depression
Gender differences in mental health during the economic crisis
Background: Economic crises have a negative effect on mental health. Little evidence has been published on the impact of economic downturns on male and female. The aim of the study was to analyze gender differences in specific mental disorders in primary care during the current economic recession in Spain.
Method: A total of 7, 914 patients in 2006 and 5, 876 patients in 2010 were recruited to collect sociodemographic data and the Primary Care Evaluation of Mental Disorders.
Results: Between 2006 and 2010 the prevalence of Major Depressive Disorder increased 155.7% in men and 104.9% in women; Generalized Anxiety Disorder increased 98.3% in men and 71.3% in women; and Multisomatoform Disorder increased 100.05% in men and 37% in women. The effect of the Employment confounder was significant across all comparisons: Major Depressive Disorder Generalized Odds Ratio=2.557 for Men (p<.001), 2.046 for Women (p=.002); Generalized Anxiety Disorder Generalized Odds Ratio= 2.153 (p<.001) for Men, 1.546 for Women (p<.001); and for Non-specific Multisomatoform Disorder Generalized Odds Ratio=1.680 for Men (p<.001) and 1.301 for women (p=.014).
Conclusion: Overall prevalence of mental disorders increased significantly between 2006 and 2010, especially in males, who are more sensitive to the effect of the current economic recession than women.
Antecedentes: el impacto de las crisis económicas sobre la salud mental está bien documentado, pero hay poca evidencia sobre el efecto diferencial que pueda tener entre hombres y mujeres. El objetivo fue analizar las diferencias de género en la prevalencia de trastornos mentales en atención primaria durante la recesión económica en España.
Método: 7.914 pacientes en 2006-2007 y 5.876 en 2010-2011 fueron encuestados para recoger datos sociodemográficos y completar la entrevista Primary Care Evaluation of Mental Disorders.
Resultados: entre 2006 y 2010 la prevalencia del Trastorno Depresivo Mayor incrementó 155, 7% en hombres y un 104, 9% en mujeres; el Trastorno de Ansiedad Generalizada aumentó 98, 3% en hombres y 71, 3% en mujeres; el Trastorno Multisomatomorfo incrementó 100, 05% en hombres y 37% en mujeres. El desempleo fue significativo en todos los análisis: Trastorno Depresivo Odds Ratio Generalizados= 2.557 en hombres (p<.001), 2.046 en mujeres (p= .002); Trastorno de Ansiedad Generalizada Odds Ratio Generalizados= 2.153 (p<.001) en hombres, 1.546 en mujeres (p<.001); Trastorno Multisomatoformo indiferenciado Odds Ratio Generalizados= 1.680 en hombres (p<.001) y 1.301 en mujeres (p= .014).
Conclusiones: la prevalencia de los trastornos mentales se incrementó entre 2006 y 2010 en ambos sexos, pero especialmente en hombres, quienes son más sensibles a los efectos de la crisis económica
The Mediterranean diet and micronutrient levels in depressive patients
Introduction: An inverse association between depression and some serum micronutrient levels (selenium, zinc, iron, magnesium, vitamin B and folic acid) has been reported. In addition, other studies reported that this micronutrient supplementation may improve depressed mood. The Mediterranean diet contains a sufficient amount of the micronutrients mentioned, although no study has reported an association between diet prescription and increased levels of them in depressive patients.
Objective: To examine the impact of dietary patterns recommendations on micronutrient levels in depressive patients.
Methods: 77 outpatients were randomly assigned either to the active (hygienic-dietary recommendations on diet, exercise, sleep, and sun exposure) or control group. Outcome measures were assessed before and after the six month intervention period.
Results: Serum selenium and zinc levels were slightly low at basal point and serum selenium was inversely correlated with severity of depression (r=-0.233; p=0.041). A better outcome of depressive symptoms was found in the active group. Nevertheless, no significant differences in micronutrient levels were observed after the Mediterranean diet pattern prescription, probably due to an insufficient adherence.
Conclusion: Selenium, zinc, iron, magnesium, vitamin B12 and folic acid serum levels didn`t increase in depressed patients after six months of the Mediterranean diet pattern prescription
Nova shema za izravno upravljanje momentom asinkronih motora napajanih iz trofaznog izmjenjivača
This paper presents a novel controller based on Direct Torque Control (DTC) strategy. This controller is designed to be applied in the control of Induction Motors (IM) fed with a three-level Voltage Source Inverter (VSI). This type of inverter has several advantages over the standard two-level VSI, such as a greater number of levels in the output voltage waveforms, lower dV/dt, less harmonic distortion in voltage and current waveforms and lower switching frequencies. In the new controller, torque and stator flux errors are used together with the stator flux angular frequency to generate a reference voltage vector. Experimental results of the novel system are presented and compared with those obtained for Classical DTC system employing a two-level VSI. The new controller is shown to reduce the ripple in the torque and flux responses. Lower current distortion and switching frequency of the semiconductor devices are also obtained in the new system presented.U ovome se članku opisuje novi regulator zasnovan na strategiji izravnog upravljanja momentom i razvijen za primjenu u upravljanju asinkronim motorima napajanim iz trorazinskih izmjenjivača napona. Taj tip izmjenjivača ima nekoliko prednosti u odnosu na standardne dvorazinske izmjenjivače napona, kao što je veći broj razina u izlaznom valnom obliku napona, niži du/dt, manja distorzija harmonika u valnim oblicima napona i struje i niže frekvencije komutacije. U novom regulatoru moment i pogreške u statorskom toku koriste se zajedno s kutnom frekvencijom statora za tvorbu referentne vrijednosti vektora napona. Eksperimentalni su rezultati novog sustava prikazani i uspoređeni s rezultatima klasičnog sustava koji koristi dvorazinski pretvarač napona. Novi regulator pokazuje smanjeni šum u odzivima momenta i toka motora. U predloženom je sustavu također postignuta i manja distorzija struje i manja frekvencija komutacije poluvodičkih sklopova
Radiation-damage produced in BaHfO₃ irradiated with thermal and fast-neutrons
Samples of BaHfO₃ were irradiated with fast and thermal neutrons to produce ^181Hf. Attenuations of the gamma-gamma perturbed angular correlations in ^181Ta were observed, and they may have been caused by the interaction between defects (produced during or after neutron irradiation) and oxygen vacancies. Several defect structures were detected. For one of the structures, an excitation energy of 12 meV was measured, which was attributed to an electron state below the conduction band. The values of the dielectric constant and of the effective electron mass were also deduced
Effects of mindfulness-based interventions on biomarkers in healthy and cancer populations: a systematic review
Background: Only a small number of articles have investigated the relationship between mindfulness-based interventions (MBIs) and biomarkers. The aim of this systematic review was to study the effect of MBIs on specific biomarkers (cytokines, neuropeptides and C-reactive protein (CRP)) in both healthy subjects and cancer patients. Methods: A search was conducted using PubMed, EMBASE, PsycINFO and the Cochrane library between 1980 and September 2016. Results: A total of 13 studies with 1110 participants were included. In the healthy population, MBIs had no effect on cytokines, but were found to increase the levels of the neuropeptide insulin-like growth factor 1 (IGF-1). With respect to neuropeptide Y, despite the absence of post-intervention differences, MBIs may enhance recovery from stress. With regard to CRP, MBIs could be effective in lower Body Mass Index (BMI) individuals. In cancer patients, MBIs seem to have some effect on cytokine levels, although it was not possible to determine which specific cytokines were affected. One possibility is that MBIs might aid recovery of the immune system, increasing the production of interleukin (IL)-4 and decreasing interferon gamma (IFN-gamma). Conclusions: MBIs may be involved in changes from a depressive/carcinogenic profile to a more normalized one. However, given the complexity and different contexts of the immune system, and the fact that this investigation is still in its preliminary stage, additional randomized controlled trials are needed to further establish the impact of MBI programmes on biomarkers in both clinical and non-clinical populations.Instituto de Salud Carlos III of the Spanish Ministry of Economy and CompetitivenessNetwork for Prevention and Health Promotion in primary Care from the Instituto de Salud Carlos III of the Ministry of Economy and Competitiveness (Spain)European Union ERDF fundsAragon Hlth Sci Inst IACS, Zaragoza, SpainShowa Univ, Dept Psychiat, Sch Med, Tokyo, JapanPrimary Care Prevent & Hlth Promot Res Network RE, Barcelona, SpainUniv Zaragoza, Miguel Servet Univ Hosp, Dept Psychiat, Zaragoza, SpainUniv Zaragoza, Fac Social & Human Sci, Dept Psychol & Sociol, Teruel, SpainFed Univ Sao Paulo UNIFESP, Dept Prevent Med, Mente Aberta Brazilian Ctr Mindfulness & Hlth Pro, Sao Paulo, BrazilHosp Israelita Albert Einstein, Sao Paulo, BrazilUniv Zaragoza, Fac Hlth Sci & Sports, Huesca, SpainUniv Balearic Isl, Res Inst Hlth Sci IUNICS, Palma De Mallorca, SpainFed Univ Sao Paulo UNIFESP, Dept Prevent Med, Mente Aberta Brazilian Ctr Mindfulness & Hlth Pro, Sao Paulo, BrazilInstituto de Salud Carlos III of the Spanish Ministry of Economy and Competitiveness: PI13/01637Network for Prevention and Health Promotion in primary Care from the Instituto de Salud Carlos III of the Ministry of Economy and Competitiveness (Spain): RD12/0005Web of Scienc
Effectiveness of a healthy lifestyle promotion program as adjunctive teletherapy for treatment-resistant major depression during COVID 19 pandemic: A randomized clinical trial protocol
INTRODUCTION: Treatment-resistant depression (TRD) has a high prevalence and can be exacerbated by poor physical health and economic hardships, which have become common stressors during the current COVID-19 pandemic. The therapeutic approaches used to treat these patients are not always available, may be not be accepted by some patients, and often require face-to-face interactions.
OBJECTIVE: The main aim of this study will be to evaluate the effectiveness of an Internet-based adjuvant lifestyle-based intervention for patients with TRD.
METHODS: This will be a parallel, randomized, and controlled clinical trial. A total of 180 patients with TRD will be randomly allocated (1:1:1) to 1 of 3 groups: treatment prescribed by the mental health team and written suggestions for lifestyle changes (placebo control group); treatment prescribed by the mental health team, written suggestions for lifestyle changes, and an 8-week mindfulness-based cognitive therapy program (active control group); or treatment prescribed by the mental health team, written suggestions for lifestyle changes, and an 8-week lifestyle change promotion program (intervention group). We will perform this study during the COVID-19 pandemic, and will administer interventions by teletherapy, and contact participants by telephone calls, text messages, and/or teleconferences. We will collect patient data using questionnaires administered at baseline, immediately after the intervention, and after 6 and 12 months. The primary outcome will be score on the Beck Depression Inventory-II. The secondary outcomes will be score on the Clinical Global Impressions Scale (used to quantify and track patient progress and treatment response over time) and health-related quality of life measured using the European Quality of Life-5 Dimensions Questionnaire.
DISCUSSION: Patients with TRD are especially vulnerable when face-to-face psychotherapy is unavailable. The main strength of the proposed study is the novelty of the intervention to be used as an adjuvant therapy. Our results may provide guidance for treatment of patients with TRD in future situations that require lockdown measures.
CLINICALTRIALS REGISTRATION NUMBER: NCT04428099
Estil de vida i salut mental
L’augment de l’esperança de vida ha generat un creixent interès per l’estudi de la qualitat de vida de les persones grans. La depressió i l’ansietat són els dos problemes de salut mental més freqüents en aquest grup de pacients i amb més repercussió en la seva qualitat de vida. La depressió comporta habitualment una sèrie de conductes (mala alimentació, aïllament, sedentarisme, desinterès per la cura d’un mateix, etc.) que poden precipitar o agreujar altres malalties físiques. D’altra banda, el risc d’aparició de depressió en edats avançades pot augmentar davant la freqüent restricció d’activitats i l’aïllament social, els impediments en la mobilitat, així com per l’impacte creixent de malalties mèdiques, sobretot d’origen cardiovascular, vascular cerebrals i neurodegeneratives. Hi ha, per tant, una relació de causalitat bidireccional entre la salut física i la mental. Sembla que la ciència està demostrant el que va proposar fa molts segles Juvenal en la famosa expressió «Mens sana in corpore sano». És lògic, d’acord amb el que s’ha exposat més amunt, que intervencions basades en l’estil de vida estiguin demostrant utilitat en la prevenció i el tractament dels trastorns mentals. Per exemple, la pràctica regular d’exercici físic, una dieta sana i equilibrada com la que ofereix el patró mediterrani, una correcta higiene de son i l’exposició moderada a la llum solar poden ser eines importants per a l’abordatge dels símptomes depressius en la població gran, a més de millorar la seva salut física.El aumento de la esperanza de vida ha generado un creciente interés por el estudio de la calidad de vida de las personas mayores. La depresión y la ansiedad son los dos problemas de salud mental más frecuentes en este grupo de pacientes y con mayor repercusión en su calidad de vida. La depresión comporta habitualmente una serie de conductas (mala alimentación, aislamiento, sedentarismo, desinterés por la higiene y atención de un mismo, etc.) que pueden precipitar o agravar otras enfermedades físicas. Por otro lado, el riesgo de aparición de depresión en edades avanzadas puede aumentar ante la frecuente restricción de actividades y el aislamiento social, los impedimentos en la movilidad, así como por el impacto creciente de enfermedades médicas, sobre todo de origen cardiovascular, vascular-cerebrales y neurodegenerativas. Existe, por lo tanto, una relación de causalidad bidireccional entre la salud física y la mental. Parece que la ciencia está demostrando lo que propuso hace muchos siglos Juvenal en la famosa expresión «Mens sana in corpore sano». Es lógico, de acuerdo con lo expuesto anteriormente, que intervenciones basadas en el estilo de vida estén demostrando utilidad en la prevención y el tratamiento de los trastornos mentales. Por ejemplo, la práctica regular de ejercicio físico, una dieta sana y equilibrada como la que ofrece el patrón mediterráneo, una correcta higiene de sueño y la exposición moderada a la luz solar pueden ser herramientas importantes en el abordaje de los síntomas depresivos en la población mayor, además de mejorar su salud física
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