A four-year follow-up controlled study of stress response and symptom persistence in Brazilian children and adolescents with attention deficit disorder and hyperactivity (ADHD).

This study evaluated children and adolescents with Attention Deficit Disorder andHyperactivity Disorder (ADHD), reassessing them at a four-year follow-up. Their cortisol response to a stress stimulus was measured twice. ADHD symptom persistence, development of comorbidities, and psychostimulant usage were also reassessed. The initial sample consisted of 38 ADHD patients and 38 healthy controls, age ranging 6-14. At the follow-up, there were 37 ADHD patients and 22 healthy controls, age ranging 10-18. ADHD was classified as persistent if the patients fulfilled all DSM IV criteria for syndromic or subthreshold or had functional impairment. Salivary cortisol samples were collected prior to the application of a cognitive stressor (Continuous Performance Test - CPT), and at three time intervals afterwards at baseline and at the follow-up. Their reassessment showed that 75% had persistent symptoms, psychiatric comorbidities (oppositional defiant and behavioral disorders), functional and academic impairement. Only seven patients were on medication. The ADHD group's cortisol levels were lower than those measured four years earlier, but cortisol concentrations were similar for both ADHD and control groups at the four-year follow-up. The cortisol results suggest that HPA axis reactivity could be a marker differentiating ADHD from ADHD with comorbidities.

Supplementation with fish oil and coconut fat prevents prenatal stress-induced changes in early postnatal development.

Adequate development of the central nervous system depends on prenatal and postnatal factors. On one hand, prenatal stress (PNS) has been implicated in impaired development of the offspring. On other hand, nutritional factors during pregnancy and lactation can influence fetal and postnatal growth. This study assessed the postnatal development of rat offspring exposed to PNS, which consisted of restraint and bright lights, 3 times/day, from days 14 to 20 of pregnancy, whose mothers were fed different diets during pregnancy and lactation: regular diet, diet supplemented with coconut fat or fish oil. When pregnancy was confirmed, they were distributed into control (CTL) or PNS groups. At birth, PNS males and females weighed less than those in the group CTL. At 21 days of age, this alteration was no longer observed with fish oil and coconut fat groups. PNS and coconut fat diet induced increased locomotor activity in 13 day old male and female pups, and this effect was prevented by fish oil supplementation only in females. In conclusion, postnatal development from birth to weaning was influenced by PNS and diet and some of those alterations were prevented by coconut fat and fish oil.

Ethanol-induced sensitization depends preferentially on D1 rather than D2 dopamine receptors.

Behavioral sensitization, defined as a progressive increase in the locomotor stimulant effects elicited by repeated exposure to drugs of abuse, has been used as an animal model for drug craving in humans. The mesoaccumbens dopaminergic system has been proposed to be critically involved in this phenomenon; however, few studies have been designed to systematically investigate the effects of dopaminergic antagonists on development and expression of behavioral sensitization to ethanol in Swiss mice. We first tested the effects of D(1) antagonist SCH-23390 (0-0.03 mg/kg) or D(2) antagonist Sulpiride (0-30 mg/kg) on the locomotor responses to an acute injection of ethanol (2.0 g/kg). Results showed that all tested doses of the antagonists were effective in blocking ethanol's stimulant effects. In another set of experiments, mice were pretreated intraperitoneally with SCH-23390 (0.01 mg/kg) or Sulpiride (10 mg/kg) 30 min before saline or ethanol injection, for 21 days. Locomotor activity was measured weekly for 20 min. Four days following this pretreatment, all mice were challenged with ethanol. Both antagonists attenuated the development of ethanol sensitization, but only SCH-23390 blocked the expression of ethanol sensitization according to this protocol. When we tested a single dose (30 min before tests) of either antagonist in mice treated chronically with ethanol, both antagonists attenuated ethanol-induced effects. The present findings demonstrate that the concomitant administration of ethanol with D(1) but not D(2) antagonist prevented the expression of ethanol sensitization, suggesting that the neuroadaptations underlying ethanol behavioral sensitization depend preferentially on D(1) receptor actions.

Pituitary volume and the effects of phototherapy in patients with seasonal winter depression: a controlled study.

OBJECTIVES: Our aims were to investigate the pituitary volume in patients with seasonal winter depression and healthy volunteers in winter and summer, and to assess the effects of phototherapy in these patients. METHOD: The pituitary volume of 12 patients with winter depression and 12 healthy controls, paired according gender, age and menstrual cycle, were obtained from magnetic resonance imaging in winter and summer. Eight patients were submitted to phototherapy (10000 vs. 2500 lux) in a double-blind crossover fashion during the winter, and reassessed (symptoms and magnetic resonance imaging) after treatment. RESULTS: There were no significant differences in pituitary volume between controls and patients in winter or summer. Exposure to phototherapy (10000 lux) decreased the depressive symptoms (p = 0.004), but the glandular volume did not change (p = 0.5). However, the pituitary volume in winter showed a positive correlation with the severity of depression in these patients (r = 0.69, p = 0.04). CONCLUSIONS: The results suggest that neither winter depression nor the change of seasons is associated with significant change in the pituitary volume. Despite the fact that this study was performed in a tropical area, phototherapy with 10000 lux showed to be an efficient treatment in this SAD patients sample.

Pituitary volume and the effects of phototherapy in patients with seasonal winter depression: a controlled study

OBJECTIVES: Our aims were to investigate the pituitary volume in patients with seasonal winter depression and healthy volunteers in winter and summer, and to assess the effects of phototherapy in these patients. METHOD: The pituitary volume of 12 patients with winter depression and 12 healthy controls, paired according gender, age and menstrual cycle, were obtained from magnetic resonance imaging in winter and summer. Eight patients were submitted to phototherapy (10000 vs. 2500 lux) in a double-blind crossover fashion during the winter, and reassessed (symptoms and magnetic resonance imaging) after treatment. RESULTS: There were no significant differences in pituitary volume between controls and patients in winter or summer. Exposure to phototherapy (10000 lux) decreased the depressive symptoms (p = 0.004), but the glandular volume did not change (p = 0.5). However, the pituitary volume in winter showed a positive correlation with the severity of depression in these patients (r = 0.69, p = 0.04). CONCLUSIONS: The results suggest that neither winter depression nor the change of seasons is associated with significant change in the pituitary volume. Despite the fact that this study was performed in a tropical area, phototherapy with 10000 lux showed to be an efficient treatment in this SAD patients sample.

OBJETIVOS: Nossos objetivos foram investigar o volume da pituitária em pacientes com depressão sazonal de inverno e controles sadios, no inverno e verão, e avaliar os efeitos da fototerapia nesses pacientes. MÉTODO: O volume da pituitária de 12 pacientes com depressão de inverno e 12 controles sadios, pareados quanto ao gênero, idade e fase do ciclo menstrual, foi examinado por meio de imagem por ressonância magnética no inverno e verão. Oito pacientes foram submetidos à fototerapia (10.000 vs 2.500 lux) de forma duplo-cega e cruzada durante o inverno e reavaliados (sintomas e imagem por ressonância magnética) após o tratamento. RESULTADOS: Não houve diferença significativa no volume da pituitária entre controles e pacientes, no inverno e verão. A fototerapia (10.000 lux) reduziu os sintomas depressivos (p = 0,004), mas não alterou o volume glandular (p = 0,5). Contudo, o volume da pituitária, no inverno, mostrou uma correlação positiva com a gravidade da depressão nesses pacientes (r = 0,69, p = 0,04). CONCLUSÕES: Os resultados sugerem que nem a depressão de inverno, nem a mudança das estações estão associadas com a mudança significativa do volume da pituitária. Apesar do fato deste estudo ter sido realizado em uma região tropical, a fototerapia com 10.000 lux mostrou-se um tratamento eficaz nesta amostra.

Tratamento homeopático da depressão: relato de série de casos / Homeopathic treatment of depression: series of case report

CONTEXTO: Não há estudos metodologicamente adequados sobre a eficácia da homeopatia na depressão. Relatos de casos clínicos são os primeiros degraus da evidência clínica, a caminho de estudos controlados. OBJETIOS: Relatar resultados preliminares do tratamento homeopático de pacientes com depressão no SUS de Jundiaí. MÉTODOS: Revisão dos prontuários dos casos novos, atendidos entre março e dezembro de 2006. O diagnóstico foi confirmado por entrevista estruturada. Os pacientes receberam homeopatia individualizada e a evolução foi avaliada pela escala de Montgomery & Åsberg (MADRS). RESULTADOS: Foram tratados 15 casos e observou-se resposta terapêutica (redução maior que 50 por cento dos escores de depressão) em 14 pacientes (93 por cento), após uma média de sete semanas de tratamento; um paciente apresentou piora clínica e foi encaminhado ao tratamento convencional. O escore média (± dp) na Escala de Avaliação de Depressão de Montgomery-Åsberg diminuiu de 24,9 (± 5,8) a 9,7 (± 8,2, p < ,0001) na segunda avaliação, resultados mantidos no decorrer da terceira e quarta consultas. CONCLUSÕES: Os resultados sugerem que a homeopatia pode ser uma alternativa terapêutica no tratamento da depressão, mas estudos randomizados e controlados são necessários para se testar a eficácia e segurança do tratamento homeopático dos transtornos depressivos.

BACKGROUND: Evidence for the efficacy of homeopathy for depression is limited due to lack of clinical trials of high quality. Case reports are the first steps of clinical evidence, towards controlled trials. OBJECTIVES: To report preliminary results of homeopathic treatment of depression in Jundiai's public health system, Sao Paulo. METHODS: Review of the medical records of new patients, treated between March and December 2006. Their diagnosis was confirmed by a semi-structured interview. Patients received individualized homeopathy and their response was measured by the Montgomery & Åsberg depression scale (MADRS). RESULTS: Fifteen patients were treated and response (more than 50 percent decrease of MADRS scores) was observed in 14 patients (93 percent), after an average of seven weeks of treatment; one patient had clinical worsening and was refered to conventional antidepressant therapy. The MADRS mean scores (± dp) decreased from 24.9 (± 5.8) to 9.7 (± 8.2, p < .0001) in the 2nd evaluation, and these results signifcance were sustained through the 3rd and 4th assessments. DISCUSSION: these results suggest that homeopathy may be an alternative therapeutics for depression, but randomized and controlled studies are needed to test the efficacy and safety of the homeopathic treatment of the depressive disorders.

Tratamento homeopático da depressão: relato de série de casos / Homeopathic treatment of depression: series of case report

CONTEXTO: Não há estudos metodologicamente adequados sobre a eficácia da homeopatia na depressão. Relatos de casos clínicos são os primeiros degraus da evidência clínica, a caminho de estudos controlados. OBJETIOS: Relatar resultados preliminares do tratamento homeopático de pacientes com depressão no SUS de Jundiaí. MÉTODOS: Revisão dos prontuários dos casos novos, atendidos entre março e dezembro de 2006. O diagnóstico foi confirmado por entrevista estruturada. Os pacientes receberam homeopatia individualizada e a evolução foi avaliada pela escala de Montgomery & Åsberg (MADRS). RESULTADOS: Foram tratados 15 casos e observou-se resposta terapêutica (redução maior que 50 por cento dos escores de depressão) em 14 pacientes (93 por cento), após uma média de sete semanas de tratamento; um paciente apresentou piora clínica e foi encaminhado ao tratamento convencional. O escore média (± dp) na Escala de Avaliação de Depressão de Montgomery-Åsberg diminuiu de 24,9 (± 5,8) a 9,7 (± 8,2, p < ,0001) na segunda avaliação, resultados mantidos no decorrer da terceira e quarta consultas. CONCLUSÕES: Os resultados sugerem que a homeopatia pode ser uma alternativa terapêutica no tratamento da depressão, mas estudos randomizados e controlados são necessários para se testar a eficácia e segurança do tratamento homeopático dos transtornos depressivos.(AU)

BACKGROUND: Evidence for the efficacy of homeopathy for depression is limited due to lack of clinical trials of high quality. Case reports are the first steps of clinical evidence, towards controlled trials. OBJECTIVES: To report preliminary results of homeopathic treatment of depression in Jundiai's public health system, Sao Paulo. METHODS: Review of the medical records of new patients, treated between March and December 2006. Their diagnosis was confirmed by a semi-structured interview. Patients received individualized homeopathy and their response was measured by the Montgomery & Åsberg depression scale (MADRS). RESULTS: Fifteen patients were treated and response (more than 50 percent decrease of MADRS scores) was observed in 14 patients (93 percent), after an average of seven weeks of treatment; one patient had clinical worsening and was refered to conventional antidepressant therapy. The MADRS mean scores (± dp) decreased from 24.9 (± 5.8) to 9.7 (± 8.2, p < .0001) in the 2nd evaluation, and these results signifcance were sustained through the 3rd and 4th assessments. DISCUSSION: these results suggest that homeopathy may be an alternative therapeutics for depression, but randomized and controlled studies are needed to test the efficacy and safety of the homeopathic treatment of the depressive disorders.(AU)

Seasonal variation of suicide in Brazil.

Most of what is known about the seasonal variation in suicide rate originates from studies conducted in the northern hemisphere; very few studies have been done in the southern hemisphere. The purpose of the present study was to explore the possibility that in Brazil, the seasonal variation of suicides is a function of photoperiod. This was accomplished by analyzing monthly suicide data for a 12 yr period (1979 to 1990), within latitudes ranging from 2 degrees N to 33 degrees S. Single cosinor analyses with periods of 12 or 6 months were applied to time series of monthly total and suicidal deaths, separated by gender and state. Significant spring or early summer peaks of suicide were found only in the south of Brazil for both men and women, except for the latter in one state. These peaks did not coincide with those found for total deaths, which occurred in the autumn or winter in all areas. No significant six-month period was found. In the present study, the chance of a suicide was typically 10-17% higher during the peak period than during the other months of the year. Although this moderate seasonal effect might not be sufficient to justify planning large scale prophylactic interventions, those dealing with patients who have suicide ideation should be aware of this high risk time.

Kleine-Levin syndrome: interface between neurology and psychiatry.

We report the first episode of Kleine-Levin (KLS) syndrome in a 17-year-old male. The illness onset, clinical features, neuropsychological evaluation and polysomnographic recording are described. Typical symptoms hypersomnia, hyperphagia and sexual disinhibition were observed besides behavioral disturbances, polysomnographic and neuropsychological alterations. Behavioral disturbances similar to a manic episode including psychotic symptoms were relevant. The pharmacologic treatment included lithium, methylphenidate and risperidone. The introduction of risperidone aimed the control of psychotic symptoms and the persistent manifestations of hypersexuality after sleepiness control and to the best of our knowledge there are no other reports regarding risperidone use for KLS in the literature.

Kleine-Levin syndrome: interface between neurology and psychiatry

We report the first episode of Kleine-Levin (KLS) syndrome in a 17-year-old male. The illness onset, clinical features, neuropsychological evaluation and polysomnographic recording are described. Typical symptoms hypersomnia, hyperphagia and sexual disinhibition were observed besides behavioral disturbances, polysonographic and neuropsychological alterations. Behavioral disturbances similar to a manic episode including psychotic symptoms were relevant. The pharmacologic treatment included lithium, methylphenidate and risperidone. The introduction of risperidone aimed the control of psychotic symptoms and the persistent manifestations of hypersexuality after sleepness control and to the best of our knowledge there are no other report regarding risperidone use for KLS in the literature.

Relatamos o primeiro episódio de síndrome de Kleine-Levin (SKL) num adolescente de 17 anos. São descritos o modo de aparecimento da doença, achados clínicos, avaliação neuropsicológica e polissonografia. Foram observados sintomas típicos como hipersonolência, hiperfagia e desinibição sexual, e outras alterações comportamentais, polissonográficas e neuropsicológicas. As alterações comportamentais assemelhadas a um episódio de mania, incluindo sintomas psicóticos, foram relevantes. O tratamento farmacológico incluiu lítio, metilfenidato e risperidona. A introdução de risperidona teve por objetivo o controle dos sintomas psicóticos e das persistentes manifestações da hipersexualidade, que permaneceram após diminuição da sonolência; não temos conhecimento de relatos anteriores, na literatura, de seu uso no tratamento da SKL.

A survey on anxious and depressive complaints of Brazilian women.

BACKGROUND: Affective disorders and symptoms are very prominent among women. However specific complaints and symptoms may vary in different cultures. METHODS: A survey on the most common complaints from Brazilian women, identified as anxious or depressive symptoms, was performed with a focus group of 6 psychiatrists. The results are shown and a narrative review of manifestations of anxious and depressive symptoms in Latin American women are reported. RESULTS: Complaints and symptoms of depression and anxiety are associated with some ethnic and socio-cultural factors. The overlap between depression and anxiety is substantial. LIMITATIONS: The authors concluded that there is still insufficient quantitative scientific evidence, allowing a clear view of this subject. CONCLUSIONS: There have been suggestions that ethnic, cultural, and economic conditions seem to play an important role in presentation of depressive and anxious symptoms.

Depressão: o mesmo acometimento para homens e mulheres? / Depression: does it affect equally men and women?

Os autores fazem revisão narrativa da literatura. Descrevem aspectos epidemiológicos, biológicos, sociais e psicológicos associados a diferenças devidas ao gênero nas depressões. Existem diversos tipos de diferença entre os sexos quanto a manifestações depressivas, tais como a proporção de distribuição de duas mulheres para um homem nas taxas de prevalência de depressão maior, amplamente descrita e produto de estudos bem conduzidos. Entretanto, permanecem muitas incertezas em aspectos fundamentais desse tema.

The authors perform a narrative review of literature. They describe epidemiological, biological, social, and psychological aspects linked to gender differences in depressions. There are several differences between sexes regarding depressive manifestations such as the prevalence proportion of two women to one man, thoroughly described in the literature and result of well conducted trials. However, a number of uncertainties remain in basic aspects of this subject.

[Neurogenesis and depression: etiology or new illusion?]. / Neurogênese e depressão: etiologia ou nova ilusão?

New hippocampal neurons are continuously generated in the adult brain of several animal species. Several studies have demonstrated that a variety of environmental factors, including stress, influence the proliferation of hippocampal cells. Thus, stress induced decrease of hippocampal neurogenesis seem to be an important factor in the etiology of depression. In this review the relationship between neurogenesis and depression has been emphasized.

Revisão sistemática, metanálise e medicina baseada em evidências: considerações clínicas / Systematic review, meta-analysis, and evidence-based medicine: conceptual issues

Os autores fazem uma revisão dos conceitos que definem revisão sistemática, metanálise e medicina baseada em evidências, dão uma descrição sucinta dos processos envolvidos em sua realização e discutem sua importância. São apontadas a variabilidade de acepções desses termos, verificada na literatura médica, assim como a eventual falta de rigor metodológico na elaboração de estudos que levam o nome de revisão sistemática e especialmente metanálise, acarretando confusões e desconfiança quanto a sua validade; por isso é salientada a necessidade de clareza do sentido desses termos quando são utilizados para qualificar um estudo ou prática científica. Quanto à medicina baseada em evidências, é destacado o fato de que, apesar de ser desejável que as decisões médicas sejam tomadas do modo mais objetivo possível, e que para isso sejam observadas as evidências produzidas por estudos de boa qualidade metodológica, também devem ser incluídas e valorizadas a experiência pessoal do médico e as peculiaridades do paciente.

Neurogênese e depressão: etiologia ou nova ilusão? / Neurogenesis and depression: etiology or new ilusion?

Novos neurônios continuam sendo gerados no cérebro adulto de diversas espécies animais. Muitos estudos têm demonstrado que diversos fatores ambientais, inclusive o estresse, influenciam a proliferacão de células hipocampais. Nesse sentido, a diminuicão da neurogênese induzida pelo estresse parece ser um importante fator na etiologia da depressão. Nessa revisão, a relacão entre neurogênese e depressão é enfatizada.

Neuroendocrine effects of quetiapine in healthy volunteers.

The present study measured prolactin, cortisol, ACTH and growth hormone in healthy male volunteers following an acute oral administration of quetiapine, an atypical antipsychotic with high affinity for H1 and moderate affinity for sigma, alpha1, 5-HT2, alpha2 and D2 receptors. Fifteen male volunteers entered this randomized double-blind, cross-over, placebo-controlled study. Blood samples were drawn every 30 min from 09:00 hours to 13:00 hours. The first samples were drawn immediately before the administration of 150 mg quetiapine or placebo. Mean results for each hormone and ANOVA for repeated measures were performed. The area under the curve (AUC) hormonal values were calculated and compared by paired t test. The ANOVA showed an increase of prolactin after quetiapine administration from time 60 min up to the end of the observation period. Cortisol decreased after quetiapine administration from time 150 min to time 240 min. ACTH secretion showed no difference compared to placebo. There was a late increase in growth hormone secretion, significant in comparison with placebo only at time 210 min. The AUC values were statistically different for prolactin and cortisol compared to placebo. A single dose of quetiapine (150 mg) increased prolactin secretion probably due to a transiently high D2 receptor occupancy at the anterior pituitary. Cortisol secretion decreased as was expected from quetiapine's pharmacodynamic profile. The lack of response of ACTH might be, at least in part, explained by the low hormonal assay sensitivity. The late growth hormone increase might have been due to quetiapine's antagonism of H1 receptors.

O transtorno bipolar na mulher / Bipolar disorder in women

Diferenças sexuais, descritas em vários transtornos psiquiátricos, também parecem estar presentes no transtorno afetivo bipolar (TAB). A prevalência do TAB tipo I se distribui igualmente entre mulheres e homens. Mulheres parecem estar sujeitas a um risco maior de ciclagem rápida e mania mista, condições que fariam do TAB um transtorno com curso mais prejudicial no sexo feminino. Uma diátese depressiva mais marcante, uso excessivo de antidepressivos e diferenças hormonais surgem como hipóteses para explicar essas diferenças fenomenológicas, apesar das quais, mulheres e homens parecem responder igualmente ao tratamento medicamentoso. A indicação de anticonvulsivantes como primeira escolha em mulheres é controversa, a não ser para o tratamento da mania mista e, talvez, da ciclagem rápida. O tratamento do TAB na gravidez deve levar em conta tanto os riscos de exposição aos medicamentos quanto à doença materna. A profilaxia do TAB no puerpério está fortemente indicada em decorrência do grande risco de recorrência da doença nesse período. Embora, de modo geral, as medicações psicotrópicas estejam contra-indicadas durante a amamentação, entre os estabilizadores do humor, a carbamazepina e o valproato são mais seguros do que o lítio. Mais estudos são necessários para a confirmação das diferenças de curso do TAB entre mulheres e homens e a investigação de possíveis diferenças na efetividade dos tratamentos.

Intervenções psicossociais no transtorno bipolar / Psychosocial interventions for bipolar disorder

Neste trabalho, os autores, através de revisão bibliográfica narrativa, situam as intervenções psicossociais dentro do panorama terapêutico para o transtorno bipolar e constatam que ainda são insuficientes os estudos primários feitos com metodologia adequada para a obtenção de informações científicas de boa qualidade. São sucintamente descritos os trabalhos mais relevantes.