Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 61
Filtrar
Mais filtros

Bases de dados
País/Região como assunto
Tipo de documento
Intervalo de ano de publicação
1.
Climacteric ; 17(4): 500-9, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24606596

RESUMO

OBJECTIVE: Recent evidence suggests that climacteric symptoms may be intensified by specific temperament and personality traits in postmenopausal women. In this study we investigate Cloninger's model of personality in relation to menopausal symptoms. METHODS: One-hundred and seventy peri- and postmenopausal women consecutively recruited from a menopause clinic of an academic hospital completed the Cloninger's Temperament and Character Inventory (TCI-140) which measures four dimensions of temperament: Harm avoidance, Novelty seeking, Reward dependence and Persistence, as well as three dimensions of character: Self-directedness, Cooperativeness, and Self-transcendence. Menopausal somatic, vasomotor and psychological symptoms were also assessed using the Greene Climacteric Scale. RESULTS: In comparison to the norms of the Greek general population, postmenopausal women presented lower scores in Novelty seeking and Reward dependence and higher scores in Persistence, Self-directedness, Cooperativeness and Self-transcendence. Higher harm avoidance (the inclination to avoid potential punishment, be shy and fearful of uncertainty) significantly correlated with anxiety and depressive symptoms while lower Self-directedness (the ability to have the willpower to adapt to or overcome any changes) correlated with depressive symptoms only. By multivariate regression analysis, higher Harm avoidance and lower Self-directedness were independently associated with the presence of depressive symptoms. No significant associations were observed between TCI-140 traits and somatic or vasomotor symptoms. CONCLUSIONS: Our findings indicate that most temperament and character traits according to Cloninger's model in peri- and postmenopausal women varied significantly as compared to the general population. Among several traits, high Harm avoidance and low Self-directedness were most strongly associated with psychological climacteric distress but not with somatic and vasomotor symptoms.


Assuntos
Adaptação Psicológica/fisiologia , Ansiedade , Depressão , Fogachos , Menopausa , Personalidade , Temperamento/classificação , Ansiedade/etiologia , Ansiedade/fisiopatologia , Ansiedade/psicologia , Caráter , Estudos Transversais , Depressão/etiologia , Depressão/fisiopatologia , Depressão/psicologia , Feminino , Grécia , Fogachos/etiologia , Fogachos/fisiopatologia , Fogachos/psicologia , Humanos , Menopausa/fisiologia , Menopausa/psicologia , Pessoa de Meia-Idade , Personalidade/classificação , Personalidade/fisiologia , Inventário de Personalidade , Estatística como Assunto , Sistema Vasomotor/fisiopatologia
2.
Nat Genet ; 20(1): 70-3, 1998 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-9731535

RESUMO

Schizophrenia is a common disorder characterized by psychotic symptoms; diagnostic criteria have been established. Family, twin and adoption studies suggest that both genetic and environmental factors influence susceptibility (heritability is approximately 71%; ref. 2), however, little is known about the aetiology of schizophrenia. Clinical and family studies suggest aetiological heterogeneity. Previously, we reported that regions on chromosomes 22, 3 and 8 may be associated with susceptibility to schizophrenia, and collaborations provided some support for regions on chromosomes 8 and 22 (refs 9-13). We present here a genome-wide scan for schizophrenia susceptibility loci (SSL) using 452 microsatellite markers on 54 multiplex pedigrees. Non-parametric linkage (NPL) analysis provided significant evidence for an SSL on chromosome 13q32 (NPL score=4.18; P=0.00002), and suggestive evidence for another SSL on chromosome 8p21-22 (NPL=3.64; P=0.0001). Parametric linkage analysis provided additional support for these SSL. Linkage evidence at chromosome 8 is weaker than that at chromosome 13, so it is more probable that chromosome 8 may be a false positive linkage. Additional putative SSL were noted on chromosomes 14q13 (NPL=2.57; P=0.005), 7q11 (NPL=2.50, P=0.007) and 22q11 (NPL=2.42, P=0.009). Verification of suggestive SSL on chromosomes 13q and 8p was attempted in a follow-up sample of 51 multiplex pedigrees. This analysis confirmed the SSL in 13q14-q33 (NPL=2.36, P=0.007) and supported the SSL in 8p22-p21 (NPL=1.95, P=0.023).


Assuntos
Cromossomos Humanos Par 13 , Cromossomos Humanos Par 8 , Esquizofrenia/genética , Adulto , Suscetibilidade a Doenças , Feminino , Genes Dominantes , Ligação Genética , Humanos , Escore Lod , Masculino , Repetições de Microssatélites , Modelos Genéticos
3.
Int J Psychiatry Clin Pract ; 15(4): 296-302, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-22122004

RESUMO

OBJECTIVE: This retrospective study examined the demographic, clinical and pharmacological factors associated with aggressive behaviour after abrupt discontinuation of medication in schizophrenic patients. METHOD: The study reports on a survey of 402 schizophrenic patients, who had abruptly discontinued their medication and had been involuntarily hospitalized to Psychiatric Hospital of Attika. The survey utilized the Discontinuation-Emergent Signs and Symptoms Checklist (DESS) to assess the signs and symptoms that patients exhibited (Rosenbaum et al., Biol Psychiatry 1998;44:77), as well the Aggression Scale (Delgado-Escueta et al., New England J Med 1981;305:711) to estimate the aggressive behaviour. Demographic and clinical variables as well as variables related to pharmacological treatment have been also investigated. RESULTS: Analyses revealed that the presence of aggressive behaviour after abrupt drug discontinuation was associated positively with previous history of aggression, male gender , abrupt discontinuation of anticholinergics, delusions, nervousness or anxiety, elevated mood, irritability and negatively with negative symptoms. These predictors can correctly classify 76.3% of patients with aggressive behaviour and 64.0% of patients without aggressive behaviour. CONCLUSION: These findings suggest that abrupt discontinuation of medication in schizophrenic patients may lead to aggressive behaviour, being connected at least in the acute phase with particular demographic, clinical and pharmacological parameters.


Assuntos
Agressão/psicologia , Psicotrópicos/administração & dosagem , Esquizofrenia/tratamento farmacológico , Adulto , Fatores Etários , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Psicologia do Esquizofrênico , Fatores Sexuais
4.
J BUON ; 16(2): 378-80, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21766520

RESUMO

Gaspard-Laurent Bayle was a 19th century eminent clinician, pathologist, phthisiologist and statistician that deserves our attention. His very advanced oncologic conceptions rank him among the all-time great pioneers of oncology.


Assuntos
Oncologia/história , Neoplasias/história , Patologia Clínica/história , História do Século XVIII , História do Século XIX , Humanos , Médicos , Estatística como Assunto
5.
J BUON ; 16(4): 783-6, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-22331744

RESUMO

Professor of physiology Charles-Robert Richet, winner of the Nobel Prize in 1913, is best known for his work on anaphylaxis. However, with his collaborator Jules Héricourt studied the effects of antibody treatment and made the very first attempts to fight cancer with serotherapy. Being versatile, Richet contributed in neurology, psychology and was also a poet, playwrighter, pacifist and pioneer in aviation.


Assuntos
Alergia e Imunologia/história , Imunização Passiva/história , Oncologia/história , Neoplasias/terapia , Prêmio Nobel , Anafilaxia/imunologia , História do Século XIX , História do Século XX , Humanos , Soros Imunes
6.
Psychiatriki ; 29(4): 291-302, 2018.
Artigo em El | MEDLINE | ID: mdl-30814039

RESUMO

Electroconvulsive therapy (ECT) is the oldest among the early biological treatments introduced in psychiatry, and the only one still in use. In this paper we attempt a brief presentation of ECT usage over the last 80 years, since it was originally introduced. It is a safe, well-tolerated, and highly effective treatment option for major psychiatric disorders, such as mood disorders and schizophrenia, especially when there is an acute exacerbation of psychotic symptoms or if catatonic symptoms are prominent. ECT has also been used successfully for the treatment of Parkinson's disease, delirium, neuroleptic malignant syndrome, autism and agitation and depression in demented patients. There are no absolute contraindications. However, it is considered a high risk procedure for patients with increased intracranial pressure, recent myocardial infarction, recent cerebral hemorrhage or stroke, vascular aneurysm, retinal detachment and pheocromocytoma. Modern genetic and neuroimaging techniques have helped clarify possible mechanisms of action of ECT, but much remains unknown. Improvement of this method through a number of technical advancements has contributed in the reduction of side effects. Thus, modified ECT is currently considered as an effective and safe form of treatment even in vulnerable populations such as the geriatric patients, the adolescents and the pregnant patients. The mortality rate is very low, comparable to that of a minor anesthetic procedure. The most common adverse events are headache, nausea, myalgias and postictal delirium while the most severe are the cardiovascular side effects. Of note, the cognitive side effects especially amnesia, although transient, has been the focus of skepticism against the treatment. Major psychiatric disorders are chronic, recurring disorders. The relapse rate after a successful course of ECT without any intervention is extremely high. Pharmacotherapy or continuation ECT reduces equally the relapse rate up to 40%. Continuation and maintenance ECT, in combination with pharmacotherapy, have been successfully used in preventing relapse and recurrence. Gradual tapering off acute ECT treatments and individualized continuation and maintenance ECT treatments based on the needs of each patient seems the optimum clinical practice. Conclusively, despite impressive new developments in pharmacotherapy and in biological non pharmacological treatments ECT remains a valuable, irreplaceable treatment option for debilitating, resistant major psychiatric disorders.


Assuntos
Eletroconvulsoterapia/história , Transtornos Mentais/terapia , Psiquiatria/história , Transtorno Depressivo Resistente a Tratamento/terapia , Eletroconvulsoterapia/efeitos adversos , Eletroconvulsoterapia/métodos , História do Século XX , História do Século XXI , Humanos , Transtornos Mentais/psicologia , Recidiva , Resultado do Tratamento
7.
Psychiatriki ; 29(3): 220-230, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30605426

RESUMO

Schema therapy (ST) is an integrative therapy, which combines elements of cognitive behavior therapy, attachment theory, object relations theory and emotional-focused models. Schema therapy is an effective treatment for patients with personality disorders and other chronic psychological disorders. Early Maladaptive Schemas (EMSs) are a main concept in schema theory referring to self-defeating, core themes or patterns. They develop as a result of traumatic or toxic childhood experiences and the frustration of the core emotional needs in childhood. To date 18 EMSs have been identified and grouped into five higher order structures, known as domains. For the evaluation of the EMSs, Young developed a self-report inventory, the Young Schema Questionnaire (YSQ). There are two forms of the YSQ, the Young Schema Questionnaire - Long Form 3 (YSQ-L3) a 232-item inventory and the Young Schema Questionnaire - Short form 3 (YSQ-S3), a 90-item inventory, which is a subset of the Long form. The aim of this study was to validate the Greek Version of the YSQ-S3. A non-clinical sample of 1,236 undergraduate students completed the YSQ-S3 and 124 patients with Axis-I, Axis II or comorbid diagnosis, completed the YSQ-L3. Moreover, both samples completed the second part of the Adults Self Report (ASR). Internal consistency reliability, discriminative, convergent and predictive validity were examined. The internal consistency reliability of the schema factors was satisfactory with a Cronbach's alpha coefficient of 0.70 or above, for all factors in both student's and clinical sample. The effect sizes were high for most of the scales, regarding the differences between clinical and non-clinical sample. Emotional Deprivation, Vulnerability to harm or Illness, Subjugation, Social Isolation/Alienation and Defectiveness/Shame had the highest effect sizes in the clinical sample and in the non-clinical sample according to whether they had ever visited a mental health specialist. This may suggest that these EMSs are more sensitive and useful markers of psychological problems. In addition, patients with Axis II pathology scored significantly higher on Emotional Deprivation, Abandonment, Mistrust/Abuse, Social Isolation/Alienation compared to patients with only Axis I pathology. This finding is consistent with Schema theory, as these EMSs are associated with earlier in life traumatic experiences and insecure attachment and lie in the core of personality pathology. YSQ-S3 factors were significantly correlated with all ASR dimension and linear regression analysis showed that certain EMSs could predict Depressive and Anxiety problems. In total, the greek version of the YSQ-S3 showed good reliability and validity.


Assuntos
Transtornos Mentais/diagnóstico , Transtornos Mentais/psicologia , Psicoterapia/métodos , Inquéritos e Questionários , Adulto , Feminino , Grécia , Humanos , Masculino , Psicometria , Reprodutibilidade dos Testes , Estudantes , Traduções , Adulto Jovem
8.
Psychiatriki ; 27(3): 192-203, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27837573

RESUMO

Patients with chronic conditions like hypertension may experience many negative emotions which endorse the development of anxiety and depression symptomatology, thus they increase their risk for poor quality of life. Several studies have shown an association between symptoms of psychological distress and hypertension. In this study we aimed to quantify the link between depression, cardiophobia and quality of life in hypertensive patients. A cross-sectional design was employed. A sample of 197 hypertensive patients (89 men-108 women, mean age 53 years, SD=12 ranged 25-78) from a university outpatient hypertension clinic in Greece participated. Ninety-four (47.7%) of the participants suffered from essential grade I hypertension; 68 (34.5%) were grade II; 16 (8.1%) were categorized as grade III, while only 11 (5.6%) patients were recorded as normotensives with high normal values. The questionnaires included: (a) question for the recording of social-demographic characteristics and clinical features, (b) The Short Form (SF-36) Health Survey, (c) The Beck Depression Inventory -I, and (d) The Cardiac Anxiety Questionnaire. There were no significant differences between the two genders with exception of marital status (p=0.010), dyslipidemia (p=0.050), grade of hypertension (p=0.014), cardiac left ventricular hypertrophy (p=0.004), renal failure (p=0.043) and stroke (p=0.024). Lower levels of quality of life and higher levels of depression and cardiophobia were observed compared to the general population. There were no significant differences on psychological measures between the two sexes (p>0.05). Cardiophobia was positively related to depressive symptomatology (r=0.533, p=0.000) while negatively to both physical and mental health summary measures of SF-36 health survey (r=-0.467, p=0.000 r=-0.537, p=0.000 respectively). Multiple linear regression models found that for psychical health depression and cardiac anxiety, avoidance activities had an influence on levels of quality of life in hypertensive patients, after controlling for age and other socio-demographic variables and clinical characteristics (Beta=-0.133, p=0.007, Beta=-0.364 p=0.000 and Beta=-0.167 p=0.006, respectively). For mental component summary depression and cardiophobia, heart focused attention had also impact on mental health in hypertensives (Beta=-0.438, p=0.016, Beta=-0.564, p=0.000 and Beta=-0.223, p=0.037, respectively) after adjustments. Heart focused anxiety symptoms-as avoidance activities and/or attention and monitoring cardiac activity, are related to hypertensive patients' present deteriorated depressive symptoms and levels of quality of life. Both depressive symptomatology and heart focused anxiety may be a mechanism partly responsible for hypertensive patients' present impaired levels of quality of life.


Assuntos
Transtorno Depressivo/psicologia , Hipertensão/psicologia , Astenia Neurocirculatória/psicologia , Qualidade de Vida/psicologia , Adulto , Idoso , Comorbidade , Estudos Transversais , Transtorno Depressivo/diagnóstico , Feminino , Grécia , Inquéritos Epidemiológicos , Humanos , Hipertensão/diagnóstico , Masculino , Pessoa de Meia-Idade , Astenia Neurocirculatória/diagnóstico , Estresse Psicológico/complicações , Estresse Psicológico/psicologia
9.
Eur Neuropsychopharmacol ; 15(5): 511-6, 2005 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-16139168

RESUMO

Controversial evidence exists regarding the presence of the phenomenon of anticipation in affective disorder. To further evaluate this hypothesis on the unipolar pattern of the disease, we examined 21 two-generation pairs of first and second degree relatives with unipolar recurrent major depression. Biases from index-patient and from unaffected sibs were taken into consideration. A significant difference in the age at onset and episode frequency (as measure of disease severity) between parental and offspring generation was observed. The median age at onset of the parental generation was 37+/-8.2 years compared to 22+/-8.3 years in the offspring generation (p=0.001). The offspring generation also experienced an episode frequency two times greater than the parent generation (p=0.001). Anticipation was demonstrated in 95% of pairs regarding age at onset and in 84% of pairs in episode frequency. However, the observation of a birth cohort effect may possibly explain the differences in age at onset between generations in our sample.


Assuntos
Antecipação Genética , Transtorno Depressivo/genética , Transtornos do Humor/genética , Adolescente , Adulto , Idade de Início , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Núcleo Familiar , Linhagem
10.
Eur Psychiatry ; 20(2): 110-4, 2005 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-15797694

RESUMO

Suicide is a universally observed human behavior related to bio-psychological, social and cultural factors. The aim of the present study was to examine suicide in Cyprus, an island that has known many civilizations and cultures. All completed suicide cases in the Christian population of Cyprus during the years 1988-1999 were included in the study and they were analyzed according to age, gender, reported reasons for suicide and suicide methods. The main results indicate that: 1. The mean age-standardized suicide rate is the lowest in Europe, in males (3.08/100,000) and also in females (1.05/100,000). 2. Mean suicide rates increase significantly with age in males only. 3. Female suicide rates are highest in the 15-24 age group. 4. Statistically significant rising trends of male and female suicide rates in the all-ages group. 5. Suicide methods were mostly violent. Among males, the most common methods were poisoning, firearms-explosives, and hanging, while in females, jumping, hanging and poisoning. 6. Mental disorders, physical illness, interpersonal and financial problems were the main reported reasons for suicide. The epidemiological characteristics of suicide in Cyprus might be attributed to a combined effect of social and cultural factors and probably reflect influences from countries to which Cyprus is ethnically, historically or geographically related.


Assuntos
Suicídio/etnologia , Adolescente , Adulto , Distribuição por Idade , Idoso , Cultura , Chipre/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Psicologia , Distribuição por Sexo , Suicídio/estatística & dados numéricos
11.
Psychiatriki ; 26(2): 93-105, 2015.
Artigo em El | MEDLINE | ID: mdl-26197099

RESUMO

The media seem to have played a prominent role in shaping the contemporary social image of people with mental illness, by perpetuating the stigma attached to it. Worldwide, a vast amount of research findings converge to the stigmatizing representation of people with mental illness by the media, with reference to the dominant stereotype of violence. The present study aims to explore the representations of mental illness in the Greek Press using a quantitative and qualitative approach. Potential changes in the media portrayal of mental illness during the last decade are also being examined: findings are compared to those of a previous research that took place in 2001, following the same methodology. The sample consisted of press articles referring to mental illness, that were indexed daily from the Greek newspapers during the period July-November 2011. The items were categorized into thematic categories and further analyzed taking in account the use of stigmatizing vocabulary, the reproduction of common myths concerning mental illness, the overall valence of each article (stigmatizing, neutral or anti-stigmatizing) towards people with mental illness, as well as the contextual implications conveyed in the use of psychiatric terms as a metaphor. The largest thematic category that emerged from the sample was that referring to the repercussions of the economic crisis to mental health, followed by the category of articles where psychiatric terms are used as a metaphor. The comparisons made between 2001 and 2011 revealed an improved representation of mental illness in terms of stigma, especially regarding schizophrenia. The public expression of stigma has decreased, with fewer stigmatizing articles and notably more neutral in valence articles. The findings of this study suggest a decline of the media propensity for emotionally charged descriptions and a shift towards objective journalism regarding mental illness. This is most likely to be attributed to the anti-stigma campaigns, targeting media workers, that have been implemented during the last decade in Greece. Nevertheless, the public expression of stigma remains present by taking more subtle forms. Such examples are demonstrated by the semantic context of articles in which psychiatric terms are used as a metaphor, or by the recurrent reference of (unspecified) mental illness on the occasion of violent crime.


Assuntos
Meios de Comunicação de Massa/tendências , Transtornos Mentais/psicologia , Saúde Mental/tendências , Estigma Social , Humanos
12.
J Diabetes Res ; 2015: 354923, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25722989

RESUMO

OBJECTIVE: This study investigates the association of homocysteine and cortisol with psychological factors in type 2 diabetic patients. METHOD: Homocysteine, cortisol, and psychological variables were analyzed from 131 diabetic patients. Psychological factors were assessed with the Eysenck Personality Questionnaire (EPQ), Hostility and Direction of Hostility Questionnaire (HDHQ), the Symptom Checklist 90-R (SCL 90-R), the Zung Self-Rating Depression Scale (ZDRS), and the Maudsley O-C Inventory Questionnaire (MOCI). Blood samples were taken by measuring homocysteine and cortisol in both subgroups during the initial phase of the study (T0). One year later (T1), the uncontrolled diabetic patients were reevaluated with the use of the same psychometric instruments and with an identical blood analysis. RESULTS: The relation of psychoticism and homocysteine is positive among controlled diabetic patients (P value = 0.006 < 0.05) and negative among uncontrolled ones (P value = 0.137). Higher values of cortisol correspond to lower scores on extraversion subscale (r(p) = -0.223, P value = 0.010). Controlled diabetic patients showed a statistically significant negative relationship between homocysteine and the act-out hostility subscale (r(sp) = -0.247, P = 0.023). There is a statistically significant relationship between homocysteine and somatization (r(sp) = -0.220, P = 0.043). CONCLUSIONS: These findings support the notion that homocysteine and cortisol are related to trait and state psychological factors in patients with diabetes mellitus type 2.


Assuntos
Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/psicologia , Homocisteína/sangue , Hidrocortisona/sangue , Transtornos Psicóticos/sangue , Idoso , Diabetes Mellitus Tipo 2/complicações , Feminino , Humanos , Modelos Lineares , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Escalas de Graduação Psiquiátrica , Psicometria , Psicopatologia , Transtornos Psicóticos/complicações , Inquéritos e Questionários
13.
Biol Psychiatry ; 25(2): 141-52, 1989 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-2539200

RESUMO

Plasma norepinephrine (NE), free 3-methoxy-4-hydroxyphenethylene glycol (MHPG), and binding of tritiated yohimbine to platelet membranes were measured in 14 patients with generalized anxiety disorder (GAD), who were matched for age and sex with 14 patients with unipolar major depressive disorder (MDD) and 14 normal subjects. Plasma NE and MHPG levels were increased and the number of alpha2-adrenoreceptors (Bmax) was decreased in GAD patients compared with MDD and normal subjects. No differences were found between MDD patients and normal subjects for plasma NE, MHPG, and alpha2-adrenoreceptor binding. Plasma NE and MHPG were significantly correlated in MDD patients and tended toward a significant positive correlation in GAD patients. Plasma MHPG and affinity of binding platelet alpha2-adrenoreceptors (Kd) were significantly correlated in normal subjects. Thus, noradrenergic activity seems to be increased in patients with GAD, but not in patients with MDD. In GAD patients, higher levels of catecholamines may lead to a down-regulation of presynaptic alpha2-adrenoreceptors.


Assuntos
Transtornos de Ansiedade/sangue , Transtorno Depressivo/sangue , Norepinefrina/sangue , Receptores Adrenérgicos/fisiologia , Adulto , Idoso , Transtornos de Ansiedade/psicologia , Plaquetas/metabolismo , Transtorno Depressivo/psicologia , Feminino , Humanos , Masculino , Metoxi-Hidroxifenilglicol/sangue , Pessoa de Meia-Idade , Testes Psicológicos , Ioimbina/farmacocinética
14.
Biol Psychiatry ; 39(6): 444-7, 1996 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-8679790

RESUMO

The effects of thyrotropin-releasing hormone (TRH) administration on electroconvulsive therapy (ECT)-induced prolactin (PRL) secretion and the duration of the seizure were studied in 14 depressed women. In a balanced order crossover design the patients were given 0.4 mg TRH or placebo intravenously 20 min before ECT during the first two sessions. In the third ECT session TRH was given just prior to ECT. ECT elicited the expected PRL response when given alone and when given 20 min after TRH when PRL plasma levels were high. During the coadministration design (third ECT session) PRL levels were raised not as a sum of the two stimuli but even significantly more. TRH failed to modify the duration of the seizure induced by ECT. Therefore, if TRH is involved in seizure modulation during ECT, our findings suggest a postictal rather than ictal role for TRH.


Assuntos
Transtorno Bipolar/terapia , Transtorno Depressivo/terapia , Eletroconvulsoterapia , Eletroencefalografia/efeitos dos fármacos , Prolactina/sangue , Hormônio Liberador de Tireotropina/administração & dosagem , Adulto , Idoso , Transtorno Bipolar/fisiopatologia , Transtorno Bipolar/psicologia , Estudos Cross-Over , Transtorno Depressivo/fisiopatologia , Transtorno Depressivo/psicologia , Potenciais Evocados/efeitos dos fármacos , Feminino , Humanos , Infusões Intravenosas , Pessoa de Meia-Idade , Pré-Medicação , Escalas de Graduação Psiquiátrica , Resultado do Tratamento
15.
Am J Med Genet ; 105(4): 317-20, 2001 May 08.
Artigo em Inglês | MEDLINE | ID: mdl-11378843

RESUMO

There is accumulated evidence that the genes coding for the receptor of gamma aminobutyric acid (GABA), the most important inhibitory neurotransmitter in the CNS, may be involved in the pathogenesis of affective disorders. In a previous study, we have found a genetic association between the GABA-A receptor alpha5 subunit gene locus (GABRA5) on chromosome 15q11-of 13 and bipolar affective disorder. The aim of the present study was to examine the same subjects to see if there exists a genetic association between bipolar affective disorder and the GABA receptor beta3 subunit gene (GABRB3), which is located within 100 kb from GABRA5. The sample consisted of 48 bipolar patients compared to 44 controls (blood donors). All subjects were Greek, unrelated, and personally interviewed. Diagnosis was based on DSM-IV and ICD-10 criteria. The marker used was a dinucleotide (CA) repeat polymorphism with 12 alleles 179 to 201 bp long; genotyping was successful in all patients and 43 controls. The distribution of GABRB3 genotypes among the controls did not deviate significantly from the Hardy-Weinberg equilibrium. No differences in allelic frequencies between bipolar patients and controls were found for GABRB3, while this locus and GABRA5 did not seem to be in significant linkage disequilibrium. In conclusion, the GABRB3 CA-repeat polymorphism we investigated does not present the observed association between bipolar affective illness and GABRA5. This could be due to higher mutation rate in the GABRB3 CA-repeat polymorphism, but it might also signify that GABRA5 is the gene actually associated with the disease.


Assuntos
Transtorno Bipolar/genética , Cromossomos Humanos Par 15/genética , Família Multigênica/genética , Receptores de GABA-A/genética , Alelos , Transtorno Bipolar/patologia , Feminino , Frequência do Gene , Genótipo , Humanos , Masculino , Polimorfismo Genético , Subunidades Proteicas
16.
Am J Med Genet ; 81(1): 73-80, 1998 Feb 07.
Artigo em Inglês | MEDLINE | ID: mdl-9514592

RESUMO

Genetic factors seem to play an important role in the pathogenesis of affective disorder. The candidate gene strategies are being used, among others, to identify the genes conferring vulnerability to the disease. The genes coding for the receptors of gamma-aminobutyric acid (GABA) have been proposed as candidates for affective disorder, since the GABA neurotransmitter system has been implicated in the pathogenesis of the illness. We examined the possible genetic association between the GABA(A) receptor alpha5 subunit gene locus (GABRA5) on chromosome 15 and affective disorder, in 48 bipolar patients (BP), 40 unipolar patients (UP), and 50 healthy individuals, age- and sex-matched to the patients. All patients and controls were unrelated Greeks. Diagnoses were made after direct interviews according to the DSM-IV and ICD-10 criteria. For the genotyping, a dinucleotide (CA) repeat marker was used. The polymerase chain reaction (PCR) products found were nine alleles with lengths between 272 and 290 base pairs (bp). The distribution of allelic frequencies of the GABRA5 locus differed significantly between BP patients and controls with the 282-bp allele found to be associated with BP affective disorder, while no such difference was observed between the groups of UP patients and controls nor between the two patient groups. The presence or absence of the 282-bp allele in the genotype of BP patients was not shown to influence the age of onset and the overall clinical severity, but was found to be associated with a preponderance of manic over depressive episodes in the course of the illness.


Assuntos
Transtorno Bipolar/genética , Receptores de GABA-A/genética , Adulto , Alelos , Feminino , Frequência do Gene , Marcadores Genéticos , Genótipo , Humanos , Masculino
17.
Psychiatr Genet ; 9(4): 189-95, 1999 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-10697826

RESUMO

Dopamine neurotransmission has been implicated in the pathophysiology of schizophrenia and, more recently, affective disorders. Among the dopamine receptors, D3 can be considered as particularly related to affective disorders due to its neuroanatomical localization in the limbic region of the brain and its relation to the serotoninergic activity of the CNS. The possible involvement of dopamine receptor D3 in unipolar (UP) major depression was investigated by a genetic association study of the D3 receptor gene locus (DRD3) on 36 UP patients and 38 ethnically matched controls. An allelic association of DRD3 (Bal I polymorphism) and UP illness was observed, with the Gly-9 allele (allele '2', 206/98 base-pairs long) being more frequent in patients than in controls (49% vs 29%, P < 0.02). The genotypes containing this allele (1-2 and 2-2) were found in 75% of patients vs 50% of controls (P < 0.03, odds ratio = 3.00, 95% CI = 1.12-8.05). The effect of the genotype remained significant (P < 0.02) after sex and family history were controlled by a multiple linear regression analysis. These results further support the hypothesis that dopaminergic mechanisms may be implicated in the pathogenesis of affective disorder. More specifically, the '2' allele of the dopamine receptor D3 gene seems to be associated with unipolar depression and can be considered as a 'phenotypic modifier' for major psychiatric disorders.


Assuntos
Cromossomos Humanos Par 3 , Transtorno Depressivo/genética , Receptores de Dopamina D2/genética , Adulto , Idoso , Mapeamento Cromossômico , Desoxirribonucleases de Sítio Específico do Tipo II , Etnicidade , Europa (Continente) , Feminino , Genótipo , Humanos , Masculino , Pessoa de Meia-Idade , Polimorfismo de Fragmento de Restrição , Receptores de Dopamina D3 , Análise de Regressão
18.
Eur Neuropsychopharmacol ; 5(1): 15-8, 1995 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-7613098

RESUMO

Despite extensive study of the effects of various pharmacological agents on the thyrotropin (TSH) and prolactin (PRL) responses to TRH challenge, the effect of serotoninergic agents remains inconclusive. We studied the effect of the serotonin antagonists methysergide (non-selective 5-HT1/5-HT2 blocker with dopaminergic properties) and ritanserin (selective 5-HT2 blocker) on the TSH and PRL responses to TRH stimulation in two groups of medication-free female depressed patients in a double-blind, within-subject design. Methysergide was found to decrease significantly the PRL response to TRH, while ritanserin had no effect. Neither compound influenced the TSH response. Results suggest that 5-HT2 mechanisms do not mediate the PRL and TSH responses to TRH challenge in depression. The reduction in PRL observed after methysergide is probably due to either 5-HT1 or dopaminergic mechanisms.


Assuntos
Depressão , Metisergida/farmacologia , Ritanserina/farmacologia , Idoso , Feminino , Humanos , Pessoa de Meia-Idade , Prolactina/metabolismo , Tireotropina/metabolismo , Hormônio Liberador de Tireotropina
19.
J Affect Disord ; 27(2): 107-16, 1993 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-8440806

RESUMO

The therapeutic effect of total sleep deprivation (SD) given twice a week, for 4 weeks, was investigated in 16 drug-free patients with major affective disorders. The response was excellent in five patients, satisfactory in three and minimal in eight patients. Six of these patients were treated prophylactically once a week, and four had an excellent response. Additionally, out of five normothymic drug-free patients with affective illness treated prophylactically with SD, without prior therapeutic SD treatment, three had an excellent response. The majority of responders were rapid cycling patients. This method is worth applying to patients resistant to classical treatment.


Assuntos
Transtorno Bipolar/terapia , Transtorno Depressivo/terapia , Privação do Sono , Adulto , Idoso , Transtornos de Ansiedade/psicologia , Transtornos de Ansiedade/terapia , Transtorno Bipolar/psicologia , Transtorno Depressivo/psicologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Determinação da Personalidade , Recidiva , Resultado do Tratamento
20.
J Affect Disord ; 15(2): 113-8, 1988.
Artigo em Inglês | MEDLINE | ID: mdl-2975680

RESUMO

After one accommodation night, sleep EEG recordings were performed during three consecutive nights in ten drug-free inpatients presenting generalized anxiety disorder (GAD) with significant depression, compared with a age- and sex-matched group of patients with GAD and a group of primary major depressive disorder (MDD) patients. GAD patients with depression did not differ from GAD patients in any sleep variable. Patients with MDD showed more stage shifts and a greater number of awakenings than patients with GAD. REM latency was significantly shorter in MDD patients than in the other groups, and may thus help to differentiate anxious from depressed patients.


Assuntos
Transtornos de Ansiedade/fisiopatologia , Transtorno Depressivo/fisiopatologia , Eletroencefalografia , Fases do Sono/fisiologia , Adulto , Nível de Alerta/fisiologia , Córtex Cerebral/fisiopatologia , Feminino , Humanos , Masculino , Tempo de Reação/fisiologia , Sono REM/fisiologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA