Resolução de conflitos familiares por adolescentes e defesa do domínio pessoal / Adolescents' family conflict resolution and defense of personal domain / Resolución de conflictos familiares por adolescentes y defensa del dominio personal

Compreender as estratégias de resolução de conflitos utilizadas por adolescentes na relação com seus pais é fundamental para entender como ocorre seu desenvolvimento saudável. Este artigo investigou a resolução de conflitos de adolescentes em situações de confronto entre o seu domínio pessoal e o controle parental. 36 adolescentes com idades entre 15 e 17 anos, divididos igualmente conforme o sexo, responderam a uma entrevista semiestruturada, que continha quatro situações de conflito hipotéticas. Os dados foram submetidos à análise de conteúdo semântica e a testes não paramétricos. Os resultados foram categorizados em sete estratégias: Assunção de culpa, Submissão, Mentira, Hostilidade, Diálogo/Explicação, Negociação e Outra. A forma predominante de resolução utilizada foi o Diálogo/Explicação, considerada como uma forma recorrente de defender o domínio pessoal. Foram encontradas diferenças em relação ao sexo dos participantes e à situação hipotética. Por fim, os resultados são discutidos em termos de grau de autonomia e tipo de defesa do domínio pessoal.(AU)

Understanding the conflict resolution strategies used by adolescents in their relationship with their parents is fundamental to understanding how their healthy development occurs. This article investigated the resolution of conflicts by adolescents in confrontation situations between their personal domain and parental control. A total of 36 adolescents, aged 15 to 17 years, divided equally according to sex, answered a semi-structured interview that contained four hypothetical conflict situations. Data were subjected to semantic content analysis and non-parametric tests. The results were categorized into seven strategies: Assumption of Guilt, Submission, Lie, Hostility, Dialogue/Explanation, Negotiation, and Other. The predominant form of resolution used was Dialogue/Explanation, considered a recurrent form of defense of the personal domain. Differences were found depending on the participants' gender and the hypothetical situation. Finally, the results are discussed regarding the degree of autonomy and type of defense of the personal domain.(AU)

Enterarse de las estrategias de resolución de conflictos que los adolescentes utilizan en la relación con sus padres es fundamental para comprender cómo ocurre el desarrollo saludable de los adolescentes. A partir de una entrevista semiestructurada, presentamos cuatro situaciones hipotéticas de conflicto que fueron analizadas y respondidas por 36 adolescentes de entre 15 y 17 años, divididos según el género. Los datos se sometieron a un análisis de contenido semántico y a pruebas no paramétricas. Los resultados se categorizaron en siete estrategias de resolución de conflictos: Asunción de culpa, Sumisión, Mentira, Hostilidad, Diálogo/Explicación, Negociación y Otros. La forma de resolución más utilizada fue Diálogo/Explicación, y esta categoría fue una forma de defensa del dominio personal. Asimismo, se encontraron diferencias en función del género de los participantes y conforme la situación hipotética. Los resultados se discuten en términos de grado de autonomía y tipo de defensa del dominio personal.(AU)

O florir da violeta: um estudo de caso em avaliação terapêutica / The flowering of violet: a case study in therapeutic assessment / La flor de la violeta: un estudio de caso en evaluación terapéutica

A Avaliação Terapêutica (AT) é um processo avaliativo e interventivo proposto para ser semiestruturado e colaborativo com o objetivo de promover mudanças positivas no cliente, que é convidado a ter uma participação ativa durante o processo. Na AT, os resultados dos testes psicológicos padronizados ganham destaque como facilitadores do processo de autoconhecimento do cliente. Desse modo, usualmente, integram-se os achados de testes psicológicos de autorrelato com os métodos projetivos para gerar informações que possam ampliar a visão que o cliente tem de si. Neste artigo, buscou-se compreender o potencial de uso dos testes psicológicos e da relação colaborativa a partir de um caso atendido na perspectiva da AT. A participante, Violeta (nome fictício), foi atendida em 10 sessões com duração entre 60 e 115 minutos. Foram utilizados os testes psicológicos Escala de Bem-Estar Psicológico (Ebep), Escala de Vulnerabilidade e Estresse no Trabalho (Event), Bateria Fatorial de Personalidade (BFP), Método de Rorschach e Inventários de Habilidades Sociais 2 (IHS-2). Observou-se que, durante o processo, Violeta ampliou sua autopercepção, o que possibilitou mudanças no modo de agir em seus relacionamentos amorosos e na reflexão sobre como sua postura era vista por si e por seus colegas de trabalho. Acredita-se que a AT cumpriu com o objetivo de estabelecer uma experiência terapêutica que possibilitasse mudanças positivas para a cliente. Este estudo de caso contribuiu para ampliar a compreensão sobre a importância e o uso dos testes psicológicos neste modelo de avaliação psicológica.(AU)

The Therapeutic Assessment (TA) is an evaluative and interventional process proposed to be semi-structured and collaborative with the objective of promoting positive changes in the client, who is invited to have an active participation during the process. At the TA, the results of standardized psychological tests are highlighted as facilitators of the client's self-knowledge process. In this way, the findings of psychological self-report tests are usually integrated with projective methods to generate information that can broaden the client's view of themselves. In this article, understanding the potential use of psychological tests and of the collaborative relationship from a case treated from the TA perspective was sought. The participant, Violet (fictitious name), was assisted in 10 sessions lasting between 60 and 115 minutes. The psychological tests Psychological Well-Being Scale (EBEP), Vulnerability and Stress at Work Scale (EVENT), Personality Factorial Battery (BFP), Rorschach Method and Social Skills Inventories 2 (IHS-2) were used. It was observed that, during the process, Violet increased her self-perception, which allowed changes in her way of acting in her love life and in her reflection on how her posture was seen by herself and herco-workers. It is believed that TA fulfilled the objective of establishing a therapeutic experience that would enable positive changes for the client. This case study contributed to broaden the understanding about the importance and use of psychological testing in this psychological assessment model.(AU)

La Evaluación Terapéutica (ET) es un proceso de evaluación e intervención que se propone ser semiestructurado y colaborativo, con el objetivo de lograr cambios positivos en el cliente, quien es invitado a tener participación activa durante el proceso. En la ET se destacan los resultados de las pruebas psicológicas estandarizadas como facilitadoras del proceso de autoconocimiento del cliente. Los hallazgos de las pruebas psicológicas de autoinforme suelen integrarse con métodos proyectivos para generar información que pueda ampliar la visión que el cliente tiene de sí mismo. En este artículo se buscó comprender el uso potencial de las pruebas psicológicas y de la relación colaborativa a partir de un estudio de caso tratado desde la perspectiva de la ET. Atendieron a la participante Violeta (nombre ficticio), en 10 sesiones que duraron entre 60 y 115 minutos. Se utilizaron las pruebas psicológicas Escala de Bienestar Psicológico (EBEP), Escala de Vulnerabilidad y Estrés en el Trabajo (EVENT), Batería de Factorial de la Personalidad (BFP), Método de Rorschach e Inventario de Habilidades Sociales 2 (IHS-dos). Se observó que, durante el proceso, Violeta amplió su autopercepción, lo que permitió cambios en la forma de actuar en sus relaciones amorosas y en el reflejo de como ella y sus compañeros de trabajo veían su postura. Así, se cree que ET ha cumplido el objetivo de establecer una experiencia terapéutica que permitió cambios positivos a la cliente. Este estudio contribuyó a ampliar la comprensión sobre la importancia y el uso de las pruebas psicológicas en este modelo de evaluación psicológica.(AU)

Um capítulo esquecido na história da psicologia? sexualidades desviantes, psicopatologia e normalidade / A forgotten chapter in the history of psychology? deviant sexualities, psychopathology, and normality / ¿Un capítulo olvidado en la historia de la psicología? sexualidades desviadas, psicopatología y normalidad

Este artigo tem como objetivo produzir uma análise histórica sobre as intersecções entre Psicologia e sexualidade desviantes da norma no Brasil, de fins do século XIX a meados da década de 1980. Esta temporalidade foi escolhida por abarcar o surgimento das pesquisas científicas sobre sexualidade e desvios sexuais, a consolidação dos estudos psicológicos sobre a temática e o processo mais recente de despatologização da homossexualidade. Em termos teóricos e metodológicos, foram adotados os pressupostos da História Social da Psicologia e da historiografia das homossexualidades no Brasil. Desse modo, buscou-se compreender como as ideias, concepções e práticas psicológicas foram mudando ao longo do tempo, em conexão com as transformações socioculturais e políticas que ocorreram durante o século XX. Para isto, foram utilizadas fontes primárias e secundárias de pesquisa com vistas à produção de interpretações sobre as conexões entre as ideias, os atores e os eventos narrados. Argumenta-se, ao longo do artigo, que as ideias e práticas psicológicas estão intrinsecamente conectadas aos contextos socioculturais e políticos de seu tempo, sendo os movimentos dinâmicos e os conflitos presentes nesses contextos fatores determinantes para a sua constituição.(AU)

This article aims to produce a historical analysis of the intersections between Psychology and sexualities that deviate from the norm in Brazil, from the late 19th century to the mid-1980s. This period was chosen because it encompasses the emergence of scientific research on sexuality and sexual deviations, the consolidation of psychological studies on the subject and the most recent process of de-pathologization of homosexuality. Theoretically and methodologically, the assumptions of the Social History of Psychology and the historiography of homosexualities in Brazil were adopted. Therefore, we sought to understand how psychological ideas, conceptions and practices have changed over time, in connection with the sociocultural and political transformations that occurred throughout the 20th century. For this, primary and secondary sources of research were used to produce interpretations about the connections between the ideas, the actors and the narrated events. It is argued, throughout the article, that the psychological ideas and practices are intrinsically connected to the sociocultural and political contexts of their time, being the dynamic movements and conflicts present in these contexts determining factors for their constitution.(AU)

Este artículo tiene como objetivo realizar un análisis histórico de las intersecciones entre la Psicología y las sexualidades desviadas de la norma en Brasil desde finales del siglo XIX hasta mediados de la década de 1980. Esta temporalidad fue elegida por abarcar el surgimiento de las investigaciones científicas sobre sexualidad y desvíos sexuales, la consolidación de los estudios psicológicos sobre el tema y el más reciente proceso de despatologización de la homosexualidad. En el marco teórico y metodológico, se adoptaron los presupuestos de la Historia Social de la Psicología y de la historiografía de las homosexualidades en Brasil. De esta manera, se pretende comprender cómo las ideas, concepciones y prácticas psicológicas han cambiado a lo largo del tiempo, en conexión con las transformaciones socioculturales y políticas ocurridas durante el siglo XX. Para ello, se utilizaron las fuentes de investigación primarias y secundarias con miras a generar interpretaciones sobre las conexiones entre las ideas, los actores y los eventos narrados. Se argumenta, a lo largo de este artículo, que las ideas y las prácticas psicológicas están intrínsecamente conectadas a los contextos socioculturales y políticos de su tiempo, y los movimientos dinámicos y los conflictos presentes en estos contextos fueron los factores determinantes para su constitución.(AU)

Dung avoidance behavior in Crioula Lanada lambs naturally infected with gastrointestinal nematodes in a rotational pasture system / Comportamento de afastamento do bolo fecal em cordeiros Crioula Lanada naturalmente infectados com nematoides gastrintestinais em sistema de pastoreio rotacionado

Abstract This study aimed to evaluate foraging distance (FD) from the dung, parasitological and physiological factors in 18 Crioula Lanada lambs naturally infected by nematodes with three infection levels (IL) in a Voisin Grazing System. In the pre-experimental phase animal feces collection, deworming, observer training, animal adaptation and dung demarcation were carried out; in the experimental phase, grazing distance, feces, pasture and blood sampling. An initial exploratory analysis was carried out (Kruskal-Wallis test). Fixed predictors were selected with a cumulative logit regression model; an ordinal logistic regression mixed model identified influencing factors of ordinal responses for (i) FD, (ii) infective larvae quantity (L3). Animals approached the dung when the radiation or temperature were more intense (P < 0.05). Paddock entry/exit, IgG and L3 influenced FD over time (P < 0.05). L3, in turn, was influenced by IL, FEC and corpuscular volume (CV). In the High IL group, FD varied between 60-100 cm. Greater L3 and FEC were found in the High and Low IL from the 4th week (P < 0.05). Naturally infected Crioula Lanada lambs increased the distance from the dung, which was not related to IL but to the dynamics of solar radiation and parasitological and immunological factors.

Resumo O objetivo deste estudo foi avaliar a distância de forrageamento do bolo fecal (DF), fatores parasitológicos e fisiológicos em 18 cordeiros Crioula Lanada, naturalmente infectados por nematoides com três níveis de infecção (NI) em sistema Pastoreio Racional Voisin (PRV). Na fase pré-experimental, houve coleta de fezes dos animais, vermifugação, treinamento de observadores, adaptação dos animais e demarcação do bolo fecal; na fase experimental, distância, fezes, pastagem e sangue. Um modelo de regressão "logit" cumulativa selecionou preditores fixos; um modelo misto de regressão logística ordinal identificou fatores influenciadores das respostas ordinais para (i) DF (ii) quantidade de larva infectante (L3). Os cordeiros se aproximaram do bolo fecal quando a radiação ou temperatura foram mais intensas (P < 0,05). A entrada e a saída dos piquetes, a ingestão de L3 e IgG influenciaram DF (P < 0,05). L3 foi influenciada por NI, OPG e volume corpuscular. O grupo NI Alta variou a distância entre 60-100 cm. Maior L3 e a FEC foram encontrados nos grupos NI Alta e Baixa a partir da 4ª semana (P < 0,05). Cordeiros Crioula Lanada, naturalmente infectados, aumentaram a DF, sem relação com nível, de infecção, mas com a dinâmica da radiação solar e dos fatores parasitológicos e imunológicos.

Association of Increased Amygdala Activity with Stress-Induced Anxiety but not Social Avoidance Behavior in Mice / 神经科学通报·英文版

Chronic stress leads to many psychiatric disorders, including social and anxiety disorders that are associated with over-activation of neurons in the basolateral amygdala (BLA). However, not all individuals develop psychiatric diseases, many showing considerable resilience against stress exposure. Whether BLA neuronal activity is involved in regulating an individual's vulnerability to stress remains elusive. In this study, using a mouse model of chronic social defeat stress (CSDS), we divided the mice into susceptible and resilient subgroups based on their social interaction behavior. Using in vivo fiber photometry and in vitro patch-clamp recording, we showed that CSDS persistently (after 20 days of recovery from stress) increased BLA neuronal activity in all the mice regardless of their susceptible or resilient nature, although impaired social interaction behavior was only observed in susceptible mice. Increased anxiety-like behavior, on the other hand, was evident in both groups. Notably, the CSDS-induced increase of BLA neuronal activity correlated well with the heightened anxiety-like but not the social avoidance behavior in mice. These findings provide new insight to our understanding of the role of neuronal activity in the amygdala in mediating stress-related psychiatric disorders.

Association of insight, avoidance behavior, indecisiveness, and inflated responsibility with other clinical characteristics in children and adolescents with obsessive-compulsive disorder

Objectives: Although the Children's Yale-Brown Obsessive-Compulsive Scale (CY-BOCS) includes ancillary symptom dimensions - insight, avoidance, degree of indecisiveness, inflated sense of responsibility, pervasive slowness/disturbance of inertia, and pathological doubting -, we know little about their clinical/scientific utility. We examined these ancillary dimensions in childhood obsessive-compulsive disorder (OCD), and tested their associations with clinical characteristics. Methods: Treatment-seeking children and adolescents (n=173) with a DSM-5 OCD diagnosis were recruited from six centers in India and evaluated with a semi-structured proforma for sociodemographic/clinical details, the Structured Clinical Interview for DSM-5, the CY-BOCS, the Children's Depression Rating Scale, and the Family Interview for Genetic Studies. Regression analysis was used to study the associations between ancillary dimensions (independent variables) and clinical variables (dependent variables). Results: 87.9% of the sample reported at least a mild-moderate severity of ancillary dimensions, which were highly intercorrelated. Multiple ancillary dimensions were correlated with illness severity on the CY-BOCS. On regression analysis, only insight and avoidance retained significance. There were few differential associations between OCD symptom and ancillary dimensions. Conclusion: Ancillary dimensions are more a feature of illness severity than differentially associated with individual symptom dimensions in childhood OCD. Insight and avoidance should be considered for inclusion in the assessment of illness severity in childhood OCD.

In vivo exposure for fear of pain and avoidance of movement in low back pain / Exposición en vivo al miedo al dolor y evitación del movimiento en dolor lumbar / Exposição ao vivo para o medo da dor e evitação do movimento em dor lombar

ABSTRACT Objectives: to verify the effects of hierarchization and in vivo exposure for fear of pain, avoidance of movement, and anxiety in chronic low back pain. Methods: quasi-experimental study. The 27 patients who participated graded the damage associated with the movements in each of the 40 activities of daily living depicted in pictures using a scale from 0 to 100. The patients chose five out of all the activities that received a score higher than 50 to carry out the exposure. The intensities of fear and anxiety were measured before and after each exposure session. Results: the frequencies of the gender were equal, and the mean age was 44.9 years. The activities chosen more frequently for the exposure were shoveling (33.3%) and running (33.3%). There was reduction of fear and anxiety before and after exposure (p<0.001). Conclusions: hierarchization and in vivo exposure were effective in reducing fear and anxiety.

RESUMEN Objetivos: verificar los efectos de la jerarquización y exposición viva al supuesto miedo al dolor y evitar el movimiento y la ansiedad en pacientes con dolor lumbar crónico. Métodos: estudio cuasiexperimental. Los 27 pacientes que participaron clasificaron el dolor de cada uno de los 40 movimientos de la actividad cotidiana representados en fotos, utilizando una escala de 0-100. Entre las actividades clasificadas con más de 50, eligieron 5 para realizar la exposición. La intensidad del miedo y la ansiedad fueron medidas antes y después de cada sesión de exposición. Resultados: la muestra expresó equivalencia entre sexos, media etaria de 44,9 años. Las actividades más elegidas para la exposición fueron: trabajar con la pala (33,3%) y correr (33,3%). Hubo reducción del miedo y de la ansiedad antes y después de las exposiciones (p<0,001). Conclusiones: la jerarquización y exposición vivas fueron efectivas para reducir el miedo y la ansiedad.

RESUMO Objetivos: verificar os efeitos do uso da hierarquização e exposição ao vivo para a crença de medo da dor e evitação do movimento e ansiedade em pacientes com dor lombar crônica. Métodos: estudo quase-experimental. Os 27 pacientes que participaram graduaram o dano de cada um dos 40 movimentos de atividades da vida diária representados em fotos, utilizando uma escala de 0 a 100. Dentre as atividades graduadas acima de 50, escolheram 5 para realizar a exposição. As intensidades do medo e da ansiedade foram mensuradas antes e depois de cada sessão de exposição. Resultados: a frequência entre os sexos foi equitativa, a média da idade foi de 44,9 anos. As atividades mais escolhidas para a exposição foram trabalhar com a pá (33,3%) e correr (33,3%). Houve redução do medo e ansiedade antes e após as exposições (p<0,001). Conclusões: a hierarquização e exposição ao vivo foram efetivas na redução do medo e da ansiedade.

Recapitulation of Neuropsychiatric Behavioral Features in Mice Using Acute Low-dose MK-801 Administration

Despite some innate limitations, animal models are a potent investigative tool when used to model specific symptoms of a disorder. For example, MK-801, an N-methyl-D-aspartate receptor antagonist, is used as a pharmacological tool to induce symptoms found in some neuropsychiatric disorders. However, a close examination of literature suggests that the application window of MK-801 doses is relatively narrow between individual behavioral paradigms, necessitating careful characterization of the evoked behavioral aberrations and the doses used to induce them. Moreover, variation in behaviors depending on the animal strain, gender of the subject, and the timing of administration is observed, making it difficult to compare the behavioral characteristics reported in different studies. We aim to characterize the behavioral aberrations induced by different doses of MK-801 in CD-1 mice and create a ready reference for future studies. We used CD-1 mice to recapitulate behavioral impairments resulting from acute administration of MK-801. In 0.1 mg kg⁻¹, we observed diminished spontaneous alteration during the Y-maze test, while 0.12 mg kg⁻¹ resulted in hyperlocomotion and social deficit. Mice treated with 0.2 and 0.3 mg kg⁻¹ of MK-801 demonstrated a decreased self-grooming. Finally, all doses significantly impaired cliff avoidance behaviors suggesting increased impulsivity. These results affirm that MK-801 can effectively model various symptoms of different neuropsychiatric disorders in a dose-dependent manner. The observed sensitivity against spatial-memory impairment and impulsive behaviors at low concentration of MK-801 suggest that MK801 may modulate cognitive function and impulsivity in even lower concentration before it can modulate other behavioral domains.

Investigation of the clinical functioning of the Dimensional Clinical Personality Inventory 2 criticism avoidance dimension / Investigação do funcionamento clínico da dimensão evitação a críticas do Inventário Dimensional Clínico da Personalidade 2

Abstract Objective: To investigate the clinical functioning of the criticism avoidance dimension from the Dimensional Clinical Personality Inventory 2 (Inventário Dimensional Clínico da Personalidade 2 [IDCP-2]), establishing a clinically relevant cut-off for the typical traits of avoidant personality disorder (AvPD) for screening purposes. Methods: We administered the IDCP-2 to a sample of 2,276 subjects aged 18 to 90 years (mean = 26.95, standard deviation = 9.71). Of the total sample, 1,650 were women (67%) and most were college students (72.7%). The sample was divided into psychiatric patients diagnosed with other personality disorders (PDs) (n = 53), patients diagnosed with AvPD without comorbidities (n = 10), patients with AvPD with comorbidities (n=42) and those without a known diagnosis of PD (nonpsychiatric patients; n=2,171). Results: We checked for psychometric properties, assessed the adequacy of psychometric assumptions, and proceeded to focus analyses. The Wright item-person map showed the predominance of patients with AvPD in high levels of the scale. Analysis of variance (ANOVA) post hoc comparisons pointed to significant and expressive differences for almost all the comparisons; in the receiver operating characteristic (ROC) curve, we observed a sensitivity of 79% and a specificity of 87%. Conclusion: We found a suitable cut-off for the dimension, and results suggest that the dimension may help clinicians discriminate between patients with and without high levels in the symptoms of AvPD.

Resumo Objetivo: Investigar o funcionamento clínico da dimensão evitação a críticas do Inventário Dimensional Clínico da Personalidade 2 (IDCP-2), estabelecendo um ponto de corte relevante para traços típicos do transtorno da personalidade evitativa (avoidant personality disorder - AvPD), para finalidade de triagem. Métodos: Nós aplicamos o IDCP-2 em uma amostra de 2.276 pessoas com idade entre 18 e 90 anos (média=26,95; desvio padrão=9,71). Dessa amostra, 1.650 eram mulheres (67%) e a maioria era de universitários (72,7%). A amostra foi dividida em pacientes psiquiátricos com outros transtornos de personalidade (PD; n = 53), pacientes com AvPD sem comorbidades (n = 10), pacientes com AvPD com comorbidades (n=42) e aqueles sem diagnóstico conhecido de PD (pacientes não psiquiátricos; n=2.171). Resultados: Foram verificadas as propriedades psicométricas, investigando a adequação dos pressupostos psicométricos, e então procedemos às análises principais. O mapa Wright de itens-pessoas mostrou a predominância de pacientes com AvPD nos níveis mais altos da escala. Análises post hoc, pela análise de variância (ANOVA), apontou para diferenças significativas e expressivas para quase todas as comparações; na curva ROC, nós observamos sensibilidade de 79% e especificidade de 87%. Conclusão: Foi encontrado um ponto de corte adequado para a dimensão, e os resultados sugerem que a dimensão pode auxiliar clínicos a discriminar pacientes com elevação nos traços do AvPD de pacientes sem elevação nesses traços.

Thymoquinone reverses learning and memory impairments and brain tissue oxidative damage in hypothyroid juvenile rats / Timoquinona protegeu contra deficiências de aprendizagem e memória e danos nos tecidos cerebrais em ratos hipotireoidais juvenis

ABSTRACT In this study, the effect of thymoquinone (TQ) on propylthiouracil (PTU)-induced memory impairment was investigated in juvenile rats. The rats were grouped into control, Hypo, Hypo-TQ5 and Hypo-TQ10. Propylthiouracil increased latency time in the Morris water maze test and decreased delay in entering the dark compartment in the passive avoidance test. Both 5 mg/kg and 10 mg/kg doses of TQ decreased latency time in the Morris water maze test and increased delay in entering the dark compartment in a passive avoidance test. The PTU also increased malondialdehyde and nitric oxide metabolites in the brain while reduced the thiol content and superoxide dismutase and catalase activities and serum T4 level. Both doses of TQ decreased malondialdehyde and nitric oxide metabolites in the brain while enhanced the thiol content and superoxide dismutase and catalase activities and serum T4 level. The results of the present study showed that TQ protected against PTU-induced memory impairments in rats.

RESUMO Neste estudo, foi investigado o efeito da timoquinona (TQ) contra deficiências de memória induzidas por propiltiouracilo (PTU) em ratos juvenis. Os ratos foram agrupados em grupos: controle, Hypo, Hypo-TQ5, e Hypo-TQ10. O PTU aumentou o tempo de latência no teste do labirinto aquático de Morris (MWM) e diminuiu o atraso para entrar no compartimento escuro no teste de evasão passiva (PA). Ambas as doses de TQ diminuíram o tempo de latência no teste de MWM e aumentaram o atraso para entrar no compartimento escuro no teste de PA. O PTU também aumentou os metabolitos de malondialdeído (MDA) e óxido nítrico (NO) no cérebro, enquanto reduziu o teor de tiol e as atividades de superóxido dismutasa (SOD) e catalasa (CAT) e o nível sérico de T4. Ambas as doses de TQ diminuíram os metabolitos de MDA e de NO no cérebro, aumentaram o conteúdo de tiol e as atividades de SOD e CAT e o nível de T4 no soro. Os resultados do presente estudo mostraram que a TQ protegeu contra deficiências de memória induzidas por PTU em ratos.

Patient Understanding of Hypoglycemia in Tertiary Referral Centers

BACKGROUND: Hypoglycemia is an important complication in the treatment of patients with diabetes. We surveyed the insight by patients with diabetes into hypoglycemia, their hypoglycemia avoidance behavior, and their level of worry regarding hypoglycemia. METHODS: A survey of patients with diabetes, who had visited seven tertiary referral centers in Daegu or Gyeongsangbuk-do, Korea, between June 2014 and June 2015, was conducted. The survey contained questions about personal history, symptoms, educational experience, self-management, and attitudes about hypoglycemia. RESULTS: Of 758 participants, 471 (62.1%) had experienced hypoglycemia, and 250 (32.9%) had experienced hypoglycemia at least once in the month immediately preceding the study. Two hundred and forty-two (31.8%) of the participants had received hypoglycemia education at least once, but only 148 (19.4%) knew the exact definition of hypoglycemia. Hypoglycemic symptoms identified by the participants were dizziness (55.0%), sweating (53.8%), and tremor (40.8%). They mostly chose candy (62.1%), chocolate (37.7%), or juice (36.8%) as food for recovering hypoglycemia. Participants who had experienced hypoglycemia had longer duration of diabetes and a higher proportion of insulin usage. The mean scores for hypoglycemia avoidance behavior and worry about hypoglycemia were 21.2±10.71 and 23.38±13.19, respectively. These scores tended to be higher for participants with higher than 8% of glycosylated hemoglobin, insulin use, and experience of emergency room visits. CONCLUSION: Many patients had experienced hypoglycemia and worried about it. We recommend identifying patients that are anxious about hypoglycemia and educating them about what to do when they develop hypoglycemic symptoms, especially those who have a high risk of hypoglycemia.

Adrenergic receptor ß3 is involved in the memory consolidation process in mice

Attention and emotion have a positive impact on memory formation, which is related to the activation of the noradrenergic system in the brain. The hippocampus and amygdala are fundamental structures in memory acquisition, which is modulated by noradrenaline through the noradrenergic receptors. Pharmacological studies suggest that memory acquisition depends on the action of both the β3 (β3-AR) and β2 (β2-AR) receptor subtypes. However, the use of animal models with specific knockout for the β3-AR receptor only (β3-ARKO) allows researchers to more accurately assess its role in memory formation processes. In the present study, we evaluated short- and long-term memory acquisition capacity in β3-ARKO mice and wild-type mice at approximately 60 days of age. The animals were submitted to the open field test, the elevated plus maze, object recognition, and social preference. The results showed that the absence of the β3-AR receptor caused no impairment in locomotion and did not cause anxious behavior, but it caused significant impairment of short- and long-term memory compared to wild-type animals. We also evaluated the expression of genes involved in memory consolidation. The mRNA levels for GLUT3, a glucose transporter expressed in the central nervous system, were significantly reduced in the amygdala, but not in the hippocampus of the β3-ARKO animals. Our results showed that β3-AR was involved in the process of acquisition of declarative memory, and its action may be due to the facilitation of glucose absorption in the amygdala.

Proteomic Analysis of the Hippocampus in Mouse Models of Trigeminal Neuralgia and Inescapable Shock-Induced Depression / 神经科学通报·英文版

To investigate the behavioral and biomolecular similarity between neuralgia and depression, a trigeminal neuralgia (TN) mouse model was established by constriction of the infraorbital nerve (CION) to mimic clinical trigeminal neuropathic pain. A mouse learned helplessness (LH) model was developed to investigate inescapable foot-shock-induced psychiatric disorders like depression in humans. Mass spectrometry was used to assess changes in the biomolecules and signaling pathways in the hippocampus from TN or LH mice. TN mice developed not only significant mechanical allodynia but also depressive-like behaviors (mainly behavioral despair) at 2 weeks after CION, similar to LH mice. MS analysis demonstrated common and distinctive protein changes in the hippocampus between groups. Many protein function families (such as cell-to-cell signaling and interaction, and cell assembly and organization,) and signaling pathways (e.g., the Huntington's disease pathway) were involved in chronic neuralgia and depression. Together, these results demonstrated that the LH and TN models both develop depressive-like behaviors, and revealed the involvement of many psychiatric disorder-related biomolecules/pathways in the pathogenesis of TN and LH.

Repeated Failure in Reward Pursuit Alters Innate Drosophila Larval Behaviors / 神经科学通报·英文版

Animals always seek rewards and the related neural basis has been well studied. However, what happens when animals fail to get a reward is largely unknown, although this is commonly seen in behaviors such as predation. Here, we set up a behavioral model of repeated failure in reward pursuit (RFRP) in Drosophila larvae. In this model, the larvae were repeatedly prevented from reaching attractants such as yeast and butyl acetate, before finally abandoning further attempts. After giving up, they usually showed a decreased locomotor speed and impaired performance in light avoidance and sugar preference, which were named as phenotypes of RFRP states. In larvae that had developed RFRP phenotypes, the octopamine concentration was greatly elevated, while tβh mutants devoid of octopamine were less likely to develop RFRP phenotypes, and octopamine feeding efficiently restored such defects. By down-regulating tβh in different groups of neurons and imaging neuronal activity, neurons that regulated the development of RFRP states and the behavioral exhibition of RFRP phenotypes were mapped to a small subgroup of non-glutamatergic and glutamatergic octopaminergic neurons in the central larval brain. Our results establish a model for investigating the effect of depriving an expected reward in Drosophila and provide a simplified framework for the associated neural basis.

Fear-avoidance beliefs increase perception of pain and disability in Mexicans with chronic low back pain / Crenças de medo e evitação aumentam a percepção de dor e incapacidade em mexicanos com lombalgia crônica

ABSTRACT Background: Fear-avoidance beliefs are related to the prognosis of chronicity in low back pain in subacute stages, however in chronic pain, is no clear the influence of these factors; it has been suggested that the study population can determine the magnitude of influence on disability and pain of those suffering from back pain. Currently, information does not exist in the Mexican population. Objective: To analyze the relationship between fear-avoidance beliefs with pain and disability in Mexicans with chronic low back pain; analyze potentials differences between subgroups according to the time of evolution. Methods: Cross-sectional study in Mexicans with chronic LBP aged between 18 and 45. Data were collected on general socio demographic characteristics, time of evolution, body mass index, pain, disability and fear-avoidance beliefs. Results: 33 men and 47 women, with an average age of 34.19 ± 7.65 years. Higher scores of fear-avoidance beliefs were obtained in women (47.2 ± 20.99 versus 38.5 ± 9.7; p = 0.05) and single participants (p = 0.04). A positive correlation was found between disability (r = 0.603, p < 0.001) and pain (r = 0.234, p = 0.03) with high scores of fear-avoidance beliefs. Through generalized linear models for disability, total score of the fear avoidance beliefs questionnaire showed a standardized beta coefficient of 0.603, p < 0.001 (R 2 of 0.656); for pain showed a standardized beta coefficient of 0.29, p = 0.01 (R 2 of 0.721). Conclusion: The present study suggests that there is a strong relationship between pain severity, FABQ scores, and functional disability in Mexicans with chronic LBP.

RESUMO Introdução: As crenças de medo e evitação estão relacionadas com o prognóstico da cronicidade da lombalgia nas fases subagudas; contudo, na dor crônica, não é clara a influência desses fatores. Sugeriu-se que um estudo populacional pode determinar a magnitude da influência da lombalgia sobre a incapacidade e a dor. Atualmente não há informação a esse respeito na população mexicana. Objetivo: Analisar a relação entre as crenças de medo e evitação com a dor e incapacidade em mexicanos com lombalgia crônica; analisar potenciais diferenças entre subgrupos determinados pelo tempo de evolução. Métodos: Estudo transversal em mexicanos com lombalgia crônica entre 18 e 45 anos. Coletaram-se dados sobre características sociodemográficas gerais, tempo de evolução, índice de massa corporal, dor, incapacidade e crenças de medo e evitação. Resultados: Foram estudados 33 homens e 47 mulheres com média de 34,19 ± 7,65 anos. Obtiveram-se escores de crenças de medo e evitação mais elevados em participantes do sexo feminino (47,2 ± 20,99 versus 38,5 ± 9,7; p = 0,05) e solteiros (p = 0,04). Encontrou-se uma correlação positiva entre a incapacidade (r = 0,603, p < 0,001) e a dor (r = 0,234, p = 0,03), com altas pontuações de crenças de medo e evitação. Por meio de modelos lineares generalizados para incapacidade, a pontuação total no questionário de crenças de medo e evitação mostrou um coeficiente beta padronizado de 0,603, p < 0,001 (R2 de 0,656); para a dor, mostrou um coeficiente beta padronizado de 0,29, p = 0,01 (R2 de 0,721). Conclusão: O presente estudo sugere que há uma forte relação entre a intensidade da dor, os escores no FABQ e a incapacidade funcional em mexicanos com lombalgia crônica.

The effects of regular exercise on capsaicin-induced pulpal pain and pain-induced changes in passive avoidance learning and memory in rats

BACKGROUND: Pulpal pain is one of the most common and severe orofacial pain conditions with considerable adverse effects on physiological processes including learning and memory. Regular exercise is known to be effective on cognitive function as well as pain processing in the central nervous system. Here, the possible effects of regular exercise on pulpal pain response as well as pain-induced changes in learning and memory efficiency in rats were investigated. METHODS: Twenty-four male Wistar rats were randomly assigned to the control, capsaicin, exercise, and exercise plus capsaicin groups. Rats in exercise groups were forced to run on a treadmill with a moderate exercise protocol for 4 weeks. Capsaicin was used to induce dental pulp pain. Passive avoidance learning and memory performance was assessed by using a shuttle box apparatus. RESULTS: According to the results, regular exercise could decrease the time course of capsaicin-induced pulpal pain (P < 0.001). Moreover, in capsaicin-treated rats, passive avoidance acquisition was impaired as compared to the control (P < 0.05) and exercise (P < 0.001) groups. Additionally, regular exercise before capsaicin injection could attenuate capsaicin-induced memory impairments (P < 0.05). CONCLUSIONS: Taken together, the present data showed that regular exercise has inhibitory effects on capsaicin-induced pulpal pain as well as pain-induced cognitive dysfunction in rats.

El Bullying en las Unidades Educativas. Estrategias de Intervención. Cuenca. 2016

El Bullying, por sus características y consecuencias, se ha transformado en una preocupación central en el ámbito educativo y de salud, en los cuales se han desarrollado diferentes formas de afrontarlo con el fin de disminuir su incidencia y garantizar el cumplimiento de los derechos en niños y adolescentes. En el presente trabajo, se describe el acoso o maltrato entre pares "bullying" en estudiantes de nivel primario, secundario y su-perior, se analiza las intervenciones realizadas y se señala el rol que los prestadores de salud deben tener en el ámbito de la promoción, prevención e intervención.

The bullying for its characteristics and conse-quences, has become a central concern in education and health, which have developed different ways of facing in order to reduce their impact and ensure compliance with the rights in children and adolescents. This work, describes the harassment or abuse between peer, "bullying" in students of primary, secon-dary and superior level, the interventions are analyzed and it is showed the role that health care providers should have in the field of pro-motion, prevention and intervention.

Proteome analysis of rat hippocampus following morphine-induced amnesia and state-dependent learning

Morphine's effects on learning and memory processes are well known to depend on synaptic plasticity in the hippocampus. Whereas the role of the hippocampus in morphine-induced amnesia and state-dependent learning is established, the biochemical and molecular mechanisms underlying these processes are poorly understood. The present study intended to investigate whether administration of morphine can change the expression level of rat hippocampal proteins during learning of a passive avoidance task. A step-through type passive avoidance task was used for the assessment of memory retention. To identify the complex pattern of protein expression induced by morphine, we compared rat hippocampal proteome either in morphine-induced amnesia or in state-dependent learning by two-dimensional gel electerophoresis and combined mass spectrometry [MS and MS/MS]. Post-training administration of morphine decreased step-through latency. Pre-test administration of morphine induced state-dependent retrieval of the memory acquired under post-training morphine influence. In the hippocampus, a total of 18 proteins were identified whose MASCOT [Modular Approach to Software Construction Operation and Test] scores were inside 95% confidence level. Of these, five hippocampal proteins altered in morphine-induced amnesia and ten proteins were found to change in the hippocampus of animals that had received post-training and pre-test morphine. These proteins show known functions in cytoskeletal architecture, cell metabolism, neurotransmitter secretion and neuroprotection. The findings indicate that the effect of morphine on memory formation in passive avoidance learning has a morphological correlate on the hippocampal proteome level. In addition, our proteomic screen suggests that morphine induces memory impairment and state-dependent learning through modulating neuronal plasticity

Effect of 5-HT1A receptors in the hippocampal DG on active avoidance learning in rats / 中国应用生理学杂志

<p><b>OBJECTIVE</b>To investigate the effects of serotonin (5-HTIA) receptors in the hippocampal dentate gyrus (DG) on active avoidance learning in rats.</p><p><b>METHODS</b>Totally 36 SD rats were randomly divided into control group, antagonist group and agonist group(n = 12). Active avoidance learning ability of rats was assessed by the shuttle box. The extracellular concentrations of 5-HT in the DG during active avoidance conditioned reflex were measured by microdialysis and high performance liquid chromatography (HPLC) techniques. Then the antagonist (WAY-100635) or agonist (8-OH-DPAT) of the 5-HT1A receptors were microinjected into the DG region, and the active avoidance learning was measured.</p><p><b>RESULTS</b>(1) During the active avoidance learning, the concentration of 5-HT in the hippocampal DG was significantly increased in the extinction but not establishment in the conditioned reflex, which reached 164.90% ± 26.07% (P <0.05) of basal level. (2) The microinjection of WAY-100635 (an antagonist of 5-HT1A receptor) into the DG did not significantly affect the active avoidance learning. (3) The microinjection of 8-OH-DPAT(an agonist of 5-HT1A receptor) into the DG significantly facilitated the establishment process and inhibited the extinction process during active avoidance conditioned reflex.</p><p><b>CONCLUSION</b>The data suggest that activation of 5-HT1A receptors in hipocampal DG may facilitate active avoidance learning and memory in rats.</p>