Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 30
Filtrar
Mais filtros

País/Região como assunto
Tipo de documento
Intervalo de ano de publicação
1.
Braz. J. Psychiatry (São Paulo, 1999, Impr.) ; Braz. J. Psychiatry (São Paulo, 1999, Impr.);45(2): 162-181, Mar.-Apr. 2023. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1439561

RESUMO

Objectives: Religiosity and spirituality (R/S) have been negatively associated with several mental health problems, including delinquency. The study aimed to investigate the relationship between R/S and interpersonal violence using a systematic review. Methods: We conducted a descriptive systematic review followed by meta-analyses using seven different databases. We included observational studies that assessed the relationship between R/S and different types of interpersonal violence (physical and sexual aggression and domestic violence). Results: A total of 16,599 articles were screened in the databases and, after applying the eligibility criteria, 67 were included in the systematic review and 43 were included in the meta-analysis. The results showed that higher levels of R/S were significantly associated with decreased physical and sexual aggression, but not domestic violence. All selected studies evidenced sufficient methodological quality, with 26.8% being cohort studies. In the subanalyses, the role of R/S was more prevalent among adolescents. Conclusion: There is an inverse relationship between R/S and physical and sexual aggression, suggesting a protective role. However, these results were not observed for domestic violence. Healthcare professionals and managers should be aware of their patients' beliefs when investigating interpersonal violence to create tailored interventions for reducing violent behavior.

2.
Int J Mol Sci ; 24(3)2023 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-36768934

RESUMO

The mammalian target of rapamycin (mTOR) is often activated in several cancers. We focused on two mTOR regulatory mechanisms: oxaliplatin-induced mTOR signaling and L-type amino acid transporter 1 (LAT1)-induced mTOR activation. High LAT1 expression in several cancers is associated with mTOR activation and resistance to chemotherapy. However, the significance of LAT1 has not yet been elucidated in colorectal cancer (CRC) patients treated with post-operative adjuvant chemotherapy. Immunohistochemistry was conducted to examine the significance of membrane LAT1 expression in 98 CRC patients who received adjuvant chemotherapy, including oxaliplatin. In vitro analysis was performed using CRC cell lines to determine the effects of LAT1 suppression on proliferation, oxaliplatin sensitivity, and mTOR signaling. LAT1 expression was associated with cancer aggressiveness and poor prognosis in 98 CRC patients treated with adjuvant chemotherapy. We found that positive LAT1 expression correlated with shorter survival in 43 patients treated with the capecitabine-plus-oxaliplatin (CAPOX) regimen. LAT1 suppression in CRC cells inhibited the proliferation potency and oxaliplatin-induced activation of mTOR signaling, and improved oxaliplatin sensitivity. LAT1 evaluation before adjuvant treatment may therefore be a sensitive marker for oxaliplatin-based regimens. Moreover, LAT1 may be a promising target for patients with refractory CRC.


Assuntos
Neoplasias Colorretais , Humanos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Quimioterapia Adjuvante , Neoplasias Colorretais/metabolismo , Fluoruracila/uso terapêutico , Oxaliplatina/farmacologia , Oxaliplatina/uso terapêutico , Sirolimo/uso terapêutico , Serina-Treonina Quinases TOR/metabolismo
3.
Braz J Psychiatry ; 45(2): 162-181, 2023 May 11.
Artigo em Inglês | MEDLINE | ID: mdl-36331229

RESUMO

OBJECTIVE: Religiosity and spirituality (R/S) have been negatively associated with several mental health problems, including delinquency. The study aimed to investigate the relationship between R/S and interpersonal violence using a systematic review. METHODS: We conducted a descriptive systematic review followed by meta-analyses using seven different databases. We included observational studies that assessed the relationship between R/S and different types of interpersonal violence (physical and sexual aggression and domestic violence). RESULTS: A total of 16,599 articles were screened in the databases and, after applying the eligibility criteria, 67 were included in the systematic review and 43 were included in the meta-analysis. The results showed that higher levels of R/S were significantly associated with decreased physical and sexual aggression, but not domestic violence. All selected studies evidenced sufficient methodological quality, with 26.8% being cohort studies. In the subanalyses, the role of R/S was more prevalent among adolescents. CONCLUSION: There is an inverse relationship between R/S and physical and sexual aggression, suggesting a protective role. However, these results were not observed for domestic violence. Healthcare professionals and managers should be aware of their patients' beliefs when investigating interpersonal violence to create tailored interventions for reducing violent behavior.


Assuntos
Agressão , Espiritualidade , Adolescente , Humanos , Agressão/psicologia , Pessoal de Saúde , Violência
4.
Front Oncol ; 12: 904471, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35814448

RESUMO

Objectives: To determine whether quantitative parameters derived from dual-energy computed tomography (DECT) were predictive of the aggressiveness of oral tongue squamous cell carcinoma (OTSCC) including the pathologic stages, histologic differentiation, lymph node status, and perineural invasion (PNI). Methods: Between August 2019 and March 2021, 93 patients (mean age, 54.6 ± 13.8 years; 66 men) with pathologically diagnosed OTSCC were enrolled in this prospective study. Preoperative DECT was performed and quantitative parameters (e.g., slope of the spectral Hounsfield unit curve [λHu], normalized iodine concentration [nIC], normalized effective atomic number [nZeff], and normalized electron density [nRho]) were measured on arterial phase (AP) and venous phase (VP) DECT imaging. Quantitative parameters from DECT were compared between patients with different pathologic stages, histologic differentiation, lymph node statuses, and perineural invasion statuses. Logistic regression analysis was utilized to assess independent parameters and the diagnostic performance was analyzed by the receiver operating characteristic curves (ROC). Results: λHu and nIC in AP and λHu, nZeff, and nIC in VP were significantly lower in stage III-IV lesions than in stage I-II lesions (p < 0.001 to 0.024). λHu in VP was an independent predictor of tumor stage with an odds ratio (OR) of 0.29, and area under the curve (AUC) of 0.80. λHu and nIC were higher in well-differentiated lesions than in poorly differentiated lesions (p < 0.001 to 0.021). The nIC in VP was an independent predictor of histologic differentiation with OR of 0.31, and AUC of 0.78. λHu and nIC in VP were lower in OTSCCs with lymph node metastasis than those without metastasis (p < 0.001 to 0.005). λHu in VP was the independent predictor of lymph node status with OR of 0.42, and AUC of 0.74. No significant difference was found between OTSCCs without PNI and those with PNI in terms of the quantitative DECT parameters. Conclusion: DECT can be a complementary means for the preoperative prediction of the aggressiveness of OTSCC.

5.
Front Biosci (Landmark Ed) ; 27(5): 155, 2022 05 12.
Artigo em Inglês | MEDLINE | ID: mdl-35638422

RESUMO

BACKGROUND: We obtained microelectrode recordings from four patients with intractable aggressivity who underwent surgery at posteromedial hypothalamus under general anaesthesia. We described two general types of extracellular action potentials (EAPs): typical/canonical and atypical. METHODS: We analysed 337 units and 67 traces, which were characterized by the mean action potential (mAP). For the first phase, depolarization and repolarization, we computed amplitudes (VFP, VDep and VRep) and durations (dFP, dDep and dRep), maximum and minimum values of the first derivative (dVmax, dVmin), and amplitude and duration ratios. RESULTS: Most of the canonical mAPs were positive (81.1%). EAPs with atypical mean action potentials (amAPs) were recorded in 42/337 cases. Only 35.6% of mAPs showed 2 phases. We identified the following types: N1P1N2 (38.3%), P1N1 (35.9%), amAP (12.5%), P1P2N1 (12.2%), N1P1 (4.7%), P1N1P2 (4.1%) and N1N2P1 (3.2%). We can define the properties of canonical forms as those units with (i) at least two opposite phases; (ii) VDep∈[1.2,2.7]×|VRep| and strongly related by this function VRep=-0.56⁢(±0.01)⁢VDep-1.83⁢(±0.79); (iii) a very strong relationship between dVmax and dVmin, given by the equation d⁢Vmin=-0.91⁢(±0.03)⁢d⁢Vmax-0.37⁢(±0.12), both of which were included in the depolarization phase; (iv) related with VDep by the equation d⁢Vmax=0.08⁢(±0.001)⁢VDep-0.28⁢(±0.14); and (v) dDep⁢~⁢0.38⁢dRep. However, the first phase does not pertain to the same dynamic process responsible for depolarization and repolarization. CONCLUSIONS: Atypical units are described here for the first time and are true EAPs that differ strikingly from canonical forms. To date, they have been observed only in the hypothalamus, but future research is needed to assess their existence in other brain structures.


Assuntos
Hipotálamo , Potenciais de Ação/fisiologia , Humanos
6.
Mol Carcinog ; 61(8): 787-796, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35611989

RESUMO

Locoregional control is a significant prognostic factor for hepatocellular carcinoma (HCC). Historically, the use of radiotherapy (RT) for HCC was limited owing to the low radiotolerance of the liver and the need for high RT doses for disease control. We aimed to examine if 1α,25-dihydroxyvitamin D3 (calcitriol) has a role in the tumor inhibition and the radiation response of HCC in vitro and in vivo, and explore the underlying mechanisms. The human and murine liver cancer cell lines were selected for cellular and animal experiments to investigate the changes in tumor characteristics and the radiation response after calcitriol supplementation. The effects induced by calcitriol supplementation on interleukin-6 (IL-6) signaling and the tumor immune microenvironment following RT were also examined. Our data revealed that calcitriol supplementation attenuated tumor aggressive behavior, decrease IL-6 expression, and augmented radiation-induced tumor inhibition. The biological changes following calcitriol treatment included suppressed epithelial-mesenchymal transition, attenuated cancer stem cell-like properties and increased radiation-induced reactive oxygen species and cell death in vitro. Regarding immune microenvironment, calcitriol attenuated the recruitment of myeloid-derived suppressor cell (MDSC) recruitment and increased the infiltration of cytotoxic T cells in tumor following RT. Furthermore, When the primary liver tumor was irradiated with larger dose per fraction, calcitriol induced a smaller size of synchronous unirradiated tumor in mice, which linked with attenuated IL-6 signaling and MDSC recruitment. In conclusion, calcitriol treatment reduced tumor aggressiveness and enhanced the radiation response. The inhibited IL-6 signaling and subsequently enhanced antitumor immunity might be responsible to augment radiation-induced tumoricidal effect induced by calcitriol. Based on our results, we suggest that calcitriol could exert the antitumor and radiosensitization effects for HCC, especially for multifocal tumors.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Animais , Calcitriol/farmacologia , Carcinoma Hepatocelular/metabolismo , Carcinoma Hepatocelular/radioterapia , Linhagem Celular Tumoral , Colecalciferol/farmacologia , Interleucina-6/metabolismo , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/radioterapia , Camundongos , Microambiente Tumoral
7.
Ann Palliat Med ; 11(6): 1876-1887, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35272472

RESUMO

BACKGROUND: For cancer patients, life-threatening complications may be difficult to anticipate, which can lead to complex medical decision-making processes. Since 2015, the Gustave Roussy Cancer Center has used a Decision-Aid Form (DAF), which contains an estimated gradation of care in cases where patients' conditions worsen. In this study, we assessed the acceptability of the DAF and the predictive value of the proposed stratification of care with regard to care delivered and patient's outcomes. METHODS: During a 5-month period, all patients who had been transferred from Site 1 to Site 2 of the hospital were prospectively included. RESULTS: A DAF was completed for 89.3% of the 206 patients included. Planned stratification of care was indicated in nearly all cases. The involvement of the palliative care team was indicated in only 29% of the DAF. The value of the WHO/ECOG Performance Status (PS) was limited. Finally, the field "information for patients and relatives" was infrequently completed. Although the possibility of transfer to the Intensive Care Unit was proposed for two-thirds of the patients, 76% of the 35 patients experiencing an acute event received only medical or palliative care. Overall, the level of therapeutic commitment suggested by the DAF was most often revised towards less aggressive care. CONCLUSIONS: The results of our study suggest that implementing an advanced stratification record is possible in a French cultural setting. To achieve complete cultural acceptance, our large integrated institutional program continues to play a key role in anticipating intent, tracing and sharing information with patients and their relatives.


Assuntos
Planejamento Antecipado de Cuidados , Neoplasias , Tomada de Decisão Clínica , Hospitais , Humanos , Unidades de Terapia Intensiva , Neoplasias/terapia , Cuidados Paliativos/métodos , Planejamento de Assistência ao Paciente
8.
Vínculo (São Paulo, Online) ; 18(2): 1-11, jul.-dez. 2021. ilus
Artigo em Português | LILACS, INDEXPSI | ID: biblio-1341789

RESUMO

O artigo visa discutir impasses no manejo da agressividade num grupo terapêutico, tendo a hipótese de que, em alguns momentos, a agressividade apresenta-se como uma ameaça ao enquadre do grupo. Para isso, partiremos da apresentação de um caso clínico atendido em grupo terapêutico de orientação psicanalítica em co-terapia na Clínica Escola do Instituto de Psicologia da Universidade de São Paulo. Se a partir de autores centrais na psicanálise concebemos a agressividade enquanto experiência fundamental à própria constituição psíquica (inexoravelmente presente na relação entre o eu e o outro), localizamos como condição fundamental à experiência de cuidado em um grupo terapêutico o endereçamento a um outro que se apresenta disponível. Assim, a partir das funções do enquadre propostas por Bleger e Roussillon, pensamos nas condições de constância da experiência terapêutica psicanalítica - experiência que entendemos não se dar sem alguma violência/ruptura - e nos ocupamos, no caso em questão, em evitar a potencial experiência de desamparo que a agressividade colocaria em jogo no grupo, na medida em que, com Kaës, o concebemos enquanto composto por espaços psíquicos comuns e partilhados.


The article aims to discuss challenges on handling aggressiveness in a psychotherapeutic group, from the hypothesis that, in some moments, aggressiveness presents itself as a threat to the group's environment. For this, we will start with the presentation of a clinical case treated in a therapeutic group of psychoanalytic guidance in co-therapy at the Clinical School of the Institute of Psychology of the University of São Paulo. If according to central authors in psychoanalysis we conceive aggressiveness as a fundamental experience to the psychic constitution itself (inexorably present in the relationship between the self and the other), we understand that a fundamental condition for the experience of care in a therapeutic group is being able to address to another that is available. Thus, based on the frame functions proposed by Bleger and Roussillon, we discuss the conditions of constancy of the psychoanalytic therapeutic experience - an experience that we understand does not happen without some violence / rupture. Finally, in the case presented, we aimed in avoiding the potential experience of helplessness that aggressiveness would put at stake in the group, as we conceive it, with Kaës, as composed of common and shared psychic spaces.


El artículo tiene como objetivo discutir los impases en el manejo de la agresividad en un grupo terapéutico, con la hipótesis de que, en algunos momentos, la agresividad se presenta como una amenaza para el encuadre del grupo. Para esto, comenzaremos con la presentación de un caso clínico tratado en un grupo terapéutico de orientación psicoanalítica en co-terapia en la Escuela Clínica del Instituto de Psicología de la Universidad de São Paulo. Si juntamente con autores centrales del psicoanálisis concebimos la agresividad como una experiencia fundamental para la propia constitución psíquica (inexorablemente presente en la relación entre el yo y el otro), comprendemos también ser fundamental a la experiencia del cuidado en el grupo terapeutico dirigirse a un otro que está disponible. Por lo tanto, a partir de las funciones del encuadre propuestas por Bleger y Roussillon, pensamos acerca de las condiciones constantes de la experiencia terapéutica psicoanalítica, una experiencia que entendemos que no ocurre sin cierta violencia / ruptura, y nos dedicamos, en el caso presentado, a evitar la experiencia de desamparo que la agresividad pondría en juego en el grupo, en la medida en que, con Kaës, lo concebimos como compuesto de espacios psíquicos comunes y compartidos.


Assuntos
Humanos , Jogos e Brinquedos , Ludoterapia , Psicanálise , Ameaças , Agressão , Psicoterapia
9.
Front Oncol ; 11: 673147, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34150639

RESUMO

STUDY REGISTRATION: https://www.drks.de/drks_web/navigate.do?navigationId=trial.HTML&TRIAL_ID=DRKS00022837,DRKS00022837. BACKGROUND: Intensified oncological treatment for advanced cancer patients at the end-of-life has been specified as aggressiveness of care (AOC) and increased over the past decades. The aims of this study were to 1) determine the frequency of AOC in Central Europe, and 2) investigate differences in mental health outcomes in bereaved caregivers depending on whether the decedent had experienced AOC or not. MATERIALS AND METHODS: We conducted a cross-sectional study in a large tertiary comprehensive cancer care center in Germany. Bereaved caregivers provided information about (a) treatment within the last month of life of the deceased cancer patient and (b) their own mental health status, i.e., decision regret, complicated grief, depression, and anxiety. After multiple imputation of missing data, differences in mental health outcomes between AOC-caregivers and non-AOC-caregivers were analyzed in a multivariate analysis of variances. RESULTS: We enrolled 298 bereaved caregivers of deceased cancer patients. AOC occurred in 30.9% of all patients. In their last month of life, 20.0% of all patients started a new chemotherapy regimen, and 13.8% received ICU-treatment. We found differences in mental health outcomes between bereaved AOC- and non-AOC-caregivers. Bereaved AOC caregivers experienced significantly more decision regret compared to non-AOC caregivers (Cohen's d = 0.49, 95% CI [0.23, 0.76]). CONCLUSION: AOC occurs frequently in European health care and is associated with poorer mental health outcomes in bereaved caregivers. Future cohort studies should substantiate these findings and explore specific trajectories related to AOC. Notwithstanding, shared-decision making at end-of-life should increasingly account for both patients' and caregivers' preferences.

10.
Oper Neurosurg (Hagerstown) ; 21(3): 165-171, 2021 08 16.
Artigo em Inglês | MEDLINE | ID: mdl-34017998

RESUMO

BACKGROUND AND IMPORTANCE: Deep brain stimulation of the posteromedial hypothalamus (PMH DBS) appears to be an effective treatment for drug-resistant aggressiveness. Weaver syndrome (WS) is a rare genetic disorder in which patients develop some degree of intellectual disability and rarely severe behavioral alterations that may benefit from this procedure. CLINICAL PRESENTATION: We present the case of a 26-yr-old man diagnosed with WS presenting with uncontrollable self and heteroaggressiveness and disruptive behavior refractory to pharmacological treatment and under severe physical and mechanical restraining measures. The patient was successfully treated with bilateral PMH DBS resulting in affective improvement, greater tolerance for signs of affection, regularization in his sleep pattern and appetite disturbances at 12-mo follow-up. A detailed description and video of the procedure are presented, and a review of the clinical characteristics of WS and the utility and benefits of PMH DBS for refractory aggressiveness are reviewed. CONCLUSION: To our knowledge, this is the first case of refractory aggressiveness described in WS as well as the first patient with WS successfully treated with PMH DBS.


Assuntos
Anormalidades Craniofaciais , Estimulação Encefálica Profunda , Anormalidades Múltiplas , Agressão , Hipotireoidismo Congênito , Deformidades Congênitas da Mão , Humanos , Hipotálamo , Masculino
11.
Psychoanal Q ; 90(3): 399-438, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-35312397

RESUMO

The authors begin by presenting the epistemological foundations that enabled them to design a therapeutic mediation framework aimed at enhancing the treatment of hospitalized anorexic patients. This unique framework utilizes bodily exploration through sound and music vibration. The authors were inspired by a method of dynamic structuring of the body image through clay modeling, created by Gisela Pankow, and by the bodily aspects of the subject's relationship with the object in transitional phenomena and in playing, as elaborated by Donald W. Winnicott. A detailed account of a clinical experience with a young female patient highlights the way in which the framework helped reveal destructive fantasies linked to scenes of psychic conflict.1.


Assuntos
Anorexia Nervosa , Adolescente , Anorexia , Anorexia Nervosa/terapia , Imagem Corporal , Feminino , Humanos
12.
Nutrition ; 79-80: 110958, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32882636

RESUMO

OBJECTIVES: This study aimed to analyze the effect of creatine (Cr) supplementation on tumor microenvironment, evaluating the parameters of tumor aggressiveness. METHODS: Sixteen male Wistar rats were randomly assigned to 2 groups (n = 8/group): Tumor-bearing (T) and tumor-bearing supplemented with Cr (TCr). Cr supplementation was provided in drinking water for a total of 21 d. After 11 d of Cr supplementation (TCr group) or water (T group), Walker-256 tumor cells were inoculated subcutaneously in the right flank of all rats, which kept receiving Cr supplementation (TCr group) or water (T group) for 10 more days. The total period of the experiment was 21 d. RESULTS: Tumor weight corresponded with approximately 3.5% ± 0.9% of animal body weight in the T group. Cr supplementation did not accelerate tumor growth or increase tumor size. The histopathological analysis demonstrated the presence of nuclear pleomorphisms and atypical nuclei, with the presence of low-differentiated tumor cells, in both groups. Cr supplementation did not alter apoptosis and cell proliferation markers, nor tumor capsule thickness and viable tumor area. CONCLUSIONS: Cr supplementation in Walker-256 tumor-bearing rats did not induce significant changes in tumor development, and did not interfere with the parameters of tumor aggressiveness, such as the level of cell differentiation and proliferation.


Assuntos
Carcinoma 256 de Walker , Neoplasias , Animais , Apoptose , Carcinoma 256 de Walker/tratamento farmacológico , Creatina , Suplementos Nutricionais , Masculino , Ratos , Ratos Wistar , Microambiente Tumoral
13.
Front Cell Dev Biol ; 8: 613, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32754598

RESUMO

Ewing sarcoma (ES) is a rare, highly aggressive, bone, or soft tissue-associated tumor. Although this sarcoma often responds well to initial chemotherapy, 40% of the patients develop a lethal recurrence of the disease, with death recorded in 75-80% of patients with metastatic ES within 5 years, despite receiving high-dose chemotherapy. ES is genetically well-characterized, as indicated by the EWS-FLI1 fusion protein encoded as a result of chromosomal translocation in 80-90% of patients with ES, as well as in ES-related cancer cell lines. Recently, tyrosine kinases have been identified in the pathogenesis of ES. These tyrosine kinases, acting as oncoproteins, are associated with the clinical pathogenesis, metastasis, acquisition of self-renewal traits, and chemoresistance of ES, through the activation of various intracellular signaling pathways. This review describes the recent progress related to cellular and molecular functional roles of tyrosine kinases in the progression of ES.

14.
Artigo em Inglês | MEDLINE | ID: mdl-32260239

RESUMO

The objective of this study was to examine the effect of Mindkeys Training, a mindfulness-based educational intervention, on attention, self-control, and aggressiveness in third-year primary school pupils. In order to achieve this aim, a switching replications design was used. Two groups of third year primary students (nGE1 = 40; nGE2 = 33), aged between 7 and 10 years old (M = 8.08; DT = 0.49), had the intervention at different time points, such that while one served as the experimental group, the other served as the control group. Longitudinal differences were examined in both groups, and cross-sectional differences were examined between the two groups at three time points; at the start of the study, and following the intervention with each group. To that end, measurements of problems of attention, deficits of self-control, and aggressiveness for students were obtained via a teacher rating scale. The intervention program demonstrated a positive effect on the reduction of pupils' attention problems, deficits of self-control, and aggressiveness. The effects were greater on the cognitive variables that the intervention worked on directly (attention and self-control). Attention was the variable on which the intervention exhibited the longest term effects.


Assuntos
Atenção , Atenção Plena , Autocontrole , Estudantes , Criança , Estudos Transversais , Humanos , Instituições Acadêmicas , Estudantes/psicologia
15.
Physiol Behav ; 213: 112722, 2020 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-31676261

RESUMO

High-fat diets (HFDs) during pregnancy may damage the neural development and emotional behavior of rat offspring. Therefore, we investigated the neurobehavioral development of rat offspring who were fed a control diet (CD) or an HFD with lard (HFD-lard) or canola oil (HFD-canola oil), during pregnancy. Offspring's neurodevelopment (somatic growth, physical maturation, and ontogenesis reflex) was assessed while they were suckling. The rat's levels of depression, anxiety, and aggression were assessed through forced swimming, elevation plus a maze or open field test, and a foot-shock test on postnatal days 60, 80, and 110, respectively. Maternal HFDs with lard or canola oil promoted rats' offspring during suckling. They had reduced body weight and growth, physical maturation delay (auditory conduit and eyes opening to both groups HFDs-lard and canola oil; ear unfolding and incisor eruption only HFD-lard) and an ontogenesis reflex (palm grasp/vibrissa placing to both groups HFDs-lard and canola oil, and free-fall righting only in HFD-lard). Negative geotaxis resulted in the faster development of the HFD-lard offspring. Furthermore, in adulthood, the HDFs-offspring were more likely to be overweight, have shorter swimming times in the swim test, greater susceptibility to anxiety with an increased time spent in the closed arm in the elevated plus-maze while spending less time in the open arm, and having a decreased number of crossings and rearing in the open field. On the other hand, aggressive-like behavior was not affected. Therefore, these findings indicate that maternal HFDs enriched with lard or canola oil during pregnancy can impair the neurodevelopment of rat offspring and can perhaps be associated with possible changes to the emotional behavior of adult offspring.


Assuntos
Ansiedade/fisiopatologia , Dieta Hiperlipídica/efeitos adversos , Transtornos do Neurodesenvolvimento/fisiopatologia , Sobrepeso/fisiopatologia , Efeitos Tardios da Exposição Pré-Natal/fisiopatologia , Agressão/fisiologia , Animais , Ansiedade/induzido quimicamente , Comportamento Animal , Depressão/fisiopatologia , Gorduras na Dieta/efeitos adversos , Comportamento Exploratório/fisiologia , Feminino , Masculino , Transtornos do Neurodesenvolvimento/induzido quimicamente , Sobrepeso/induzido quimicamente , Gravidez , Efeitos Tardios da Exposição Pré-Natal/induzido quimicamente , Óleo de Brassica napus/efeitos adversos , Ratos
16.
Gac Med Mex ; 155(Suppl 1): S49-S55, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31638610

RESUMO

BACKGROUND: Neurosurgical treatment, although controversial, is considered a useful resource in the treatment of chronic psychiatric diseases such as refractory aggressiveness. OBJECTIVE: To evaluate the clinical results and side effects of posteromedial hypothalamotomy associated with amygdalotomy in patients with refractory aggressiveness. METHOD: A clinical trial was conducted in patients with chronic aggressiveness and refractory to pharmacological treatment. A central amygdalotomy associated with posteromedial hypothalamotomy was performed using thermo-coagulation by radiofrequency. The degree of aggressiveness was quantified by the Yudofsky's global scale of aggression. Postoperative changes in aggressive behavior continued to be evaluated every 6 months for at least 36 months. RESULTS: A statistically significant change in aggressive behavior was observed during 36 months of follow-up. The collateral effects of the association of both procedures are described, the most frequent being drowsiness and some cases of reduction in sexual behavior. CONCLUSION: Symmetric and simultaneous unilateral lesions of the central nucleus of the amygdala and the posteromedial hypothalamus contralateral to motor dominance give the same clinical effect in the reduction of the pathological aggression that the bilateral lesions.


Assuntos
Agressão , Tonsila do Cerebelo/cirurgia , Hipotálamo/cirurgia , Adulto , Tonsila do Cerebelo/diagnóstico por imagem , Eletrocoagulação/efeitos adversos , Eletrocoagulação/métodos , Feminino , Humanos , Hipotálamo/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Psicocirurgia/métodos , Ablação por Radiofrequência/efeitos adversos , Ablação por Radiofrequência/métodos , Resultado do Tratamento , Adulto Jovem
17.
Proc Biol Sci ; 286(1912): 20191244, 2019 10 09.
Artigo em Inglês | MEDLINE | ID: mdl-31575367

RESUMO

Assessing life-history traits of parasites on resistant hosts is crucial in evolutionary ecology. In the particular case of sporulating pathogens with growing lesions, phenotyping is difficult because one needs to disentangle properly pathogen spread from sporulation. By considering Phytophthora infestans on potato, we use mathematical modelling to tackle this issue and refine the assessment of pathogen response to quantitative host resistance. We elaborate a parsimonious leaf-scale model by convolving a lesion growth model and a sporulation function, after a latency period. This model is fitted to data obtained on two isolates inoculated on three cultivars with contrasted resistance level. Our results confirm a significant host-pathogen interaction on the various estimated traits, and a reduction of both pathogen spread and spore production, induced by host resistance. Most interestingly, we highlight that quantitative resistance also changes the sporulation function, the mode of which is significantly time-lagged. This alteration of the infectious period distribution on resistant hosts may have strong impacts on the dynamics of parasite populations, and should be considered when assessing the durability of disease control tactics based on plant resistance management. This inter-disciplinary work also supports the relevance of mechanistic models for analysing phenotypic data of plant-pathogen interactions.


Assuntos
Interações Hospedeiro-Patógeno , Características de História de Vida , Phytophthora infestans/fisiologia , Solanum tuberosum/microbiologia , Solanum tuberosum/fisiologia , Modelos Biológicos , Doenças das Plantas/microbiologia
18.
Complement Ther Clin Pract ; 36: 77-81, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31383449

RESUMO

BACKGROUND AND PURPOSE: Aggression is increasing in society, leading to health hazards. The aim of the present study is to investigate the effect of anapanasati meditation on verbal aggression in healthy individuals. MATERIALS AND METHODS: In this randomized controlled trial, 140 participants were screened and 90 participants were randomly allocated to experimental and control groups, with 45 participants in each group. The Verbal Aggressiveness Scale (VAS) was used to assess the verbal aggression score, and anapanasati meditation was given as an intervention. The experimental group practiced anapanasati meditation every day for 6 months, and the control group did not receive any intervention. RESULTS: The experimental group showed a significant reduction in VAS (p < 0.01) score after the intervention, whereas the reduction was not significant in the control group. CONCLUSION: This study showed that after a 6-month intervention, verbal aggression decreased significantly in the experimental group compared with the control group.


Assuntos
Agressão , Sintomas Comportamentais/terapia , Meditação , Humanos
19.
Gac Med Mex ; 155(Suppl 1): S62-S69, 2019.
Artigo em Espanhol | MEDLINE | ID: mdl-31182879

RESUMO

BACKGROUND: Neurosurgical treatment, although controversial, is considered a useful resource in the treatment of chronic psychiatric diseases such as refractory aggressiveness. OBJECTIVE: To evaluate the clinical results and side effects of posteromedial hypothalamotomy associated with amygdalotomy in patients with refractory aggressiveness. METHOD: A clinical trial was conducted in patients with chronic aggressiveness and refractory to pharmacological treatment. A central amygdalotomy associated with posteromedial hypothalamotomy was performed using thermo-coagulation by radiofrequency. The degree of aggressiveness was quantified by the Yudofsky's global scale of aggression. Postoperative changes in aggressive behavior continued to be evaluated every 6 months for at least 36 months. RESULTS: A statistically significant change in aggressive behavior was observed during 36 months of follow-up. The collateral effects of the association of both procedures are described, the most frequent being drowsiness and some cases of reduction in sexual behavior. CONCLUSION: Symmetric and simultaneous unilateral lesions of the central nucleus of the amygdala and the posteromedial hypothalamus contralateral to motor dominance give the same clinical effect in the reduction of the pathological aggression that the bilateral lesions.


ANTECEDENTES: El tratamiento neuroquirúrgico, aunque polémico, se considera un recurso útil en el tratamiento de enfermedades psiquiátricas crónicas como la agresividad refractaria. OBJETIVO: Evaluar los resultados clínicos y los efectos colaterales de la hipotalamotomía posteromedial (HPM) asociada a amigdalotomía en pacientes con agresividad refractaria. MÉTODO: Se realizó un ensayo clínico en pacientes con agresividad crónica y refractaria a tratamiento farmacológico. Se les realizó amigdalotomía central asociada a HPM mediante termocoagulación por radiofrecuencia. El grado de agresividad se cuantificó mediante la escala global de agresividad de Yudofsky. Los cambios postoperatorios en la conducta agresiva continuaron siendo evaluados cada 6 meses durante al menos 36 meses. RESULTADOS: Se observó un cambio estadísticamente significativo de la conducta agresiva, a lo largo de 36 meses de seguimiento. Se describen los efectos colaterales de la asociación de ambos procedimientos, siendo el de mayor frecuencia la somnolencia y algunos casos de reducción en la conducta sexual. CONCLUSIÓN: Las lesiones unilaterales simétricas y simultáneas del núcleo central de la amígdala y del hipotálamo posteromedial contralaterales a la dominancia motora dan el mismo efecto clínico en la reducción de la agresividad patológica que las lesiones bilaterales.


Assuntos
Agressão , Tonsila do Cerebelo/cirurgia , Hipotálamo/cirurgia , Transtornos Mentais/cirurgia , Psicocirurgia/métodos , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
20.
Phytopathology ; 109(9): 1555-1565, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31041882

RESUMO

Late blight caused by the oomycete Phytophthora infestans constitutes the greatest threat to potato production worldwide. Considering the increasing concerns regarding the emergence of novel fungicide-resistant genotypes and the general demand for reducing inputs of synthetic and copper-based fungicides, the need for alternative control methods is acute. Several bacterial antagonists have shown anti-Phytophthora effects during in vitro and greenhouse experiments. We report the effects of three Pseudomonas strains recovered from field-grown potatoes against a collection of P. infestans isolates assembled for this study. The collection comprised 19 P. infestans isolates of mating types A1 and A2 greatly varying in fungicide resistance and virulence profiles as deduced from leaf disc experiments on Black's differential set. The mycelial growth of all P. infestans isolates was fully inhibited when co-cultivated with the most active Pseudomonas strain (R47). Moreover, the isolates reacted differently to exposure to the less active Pseudomonas strains (S19 and R76). Leaf disc infection experiments with six selected P. infestans isolates showed that four of them, including highly virulent and fungicide-resistant ones, could be efficiently controlled by different potato-associated Pseudomonas strains.[Formula: see text] Copyright © 2019 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.


Assuntos
Phytophthora infestans , Solanum tuberosum , Genótipo , Doenças das Plantas/microbiologia , Pseudomonas , Solanum tuberosum/microbiologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA