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1.
Braz J Med Biol Res ; 56: e12484, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36946840

RESUMO

Borderline personality disorder (BPD) is a severe psychiatric condition that affects up to 2.7% of the population and is highly linked to functional impairment and suicide. Despite its severity, there is a lack of knowledge about its pathophysiology. Studies show genetic influence and childhood violence as factors that may contribute to the development of BPD; however, the involvement of neuroinflammation in BPD remains poorly investigated. This article aimed to explore the pathophysiology of BPD according to the levels of brain-derived neurotrophic factor (BDNF), inflammatory cytokines, and oxidative stress substances that exacerbate neuronal damage. Few articles have been published on this theme. They show that patients with BPD have a lower level of BDNF and a higher level of tumor necrosis factor (TNF)-α and interleukin (IL)-6 in peripheral blood, associated with increased plasma levels of oxidative stress markers, such as malondialdehyde and 8-hydroxy-2-deoxyguanosine. Therefore, more research on the topic is needed, mainly with a pre-clinical and clinical focus.


Assuntos
Transtorno da Personalidade Borderline , Humanos , Criança , Transtorno da Personalidade Borderline/epidemiologia , Transtorno da Personalidade Borderline/genética , Transtorno da Personalidade Borderline/psicologia , Fator Neurotrófico Derivado do Encéfalo/genética , Interleucina-6 , Fator de Necrose Tumoral alfa
2.
Braz. j. med. biol. res ; 56: e12484, 2023. tab
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1420761

RESUMO

Borderline personality disorder (BPD) is a severe psychiatric condition that affects up to 2.7% of the population and is highly linked to functional impairment and suicide. Despite its severity, there is a lack of knowledge about its pathophysiology. Studies show genetic influence and childhood violence as factors that may contribute to the development of BPD; however, the involvement of neuroinflammation in BPD remains poorly investigated. This article aimed to explore the pathophysiology of BPD according to the levels of brain-derived neurotrophic factor (BDNF), inflammatory cytokines, and oxidative stress substances that exacerbate neuronal damage. Few articles have been published on this theme. They show that patients with BPD have a lower level of BDNF and a higher level of tumor necrosis factor (TNF)-α and interleukin (IL)-6 in peripheral blood, associated with increased plasma levels of oxidative stress markers, such as malondialdehyde and 8-hydroxy-2-deoxyguanosine. Therefore, more research on the topic is needed, mainly with a pre-clinical and clinical focus.

3.
J Affect Disord ; 148(1): 136-40, 2013 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-23200297

RESUMO

Despite the evidence of an association between depression and increased inflammatory markers, still little is known in relation to the most severe cases of the disorder i.e., those who fail to respond to antidepressants. We have assessed the cytokine profile and cortisol levels in 21 healthy controls (HC) and 19 medicated patients with depression with treatment-resistance (TRD) moderately ill. As an initial exploratory analysis, we have also related cytokine profile to the patient's clinical treatment outcome after an inpatient admission. Cytokine profile was measured in the serum by the Cytokine Array I kit (Randox). Plasma cortisol was carried out using a commercially available for the IMMULITE system. When compared to healthy controls, depressed patients had higher levels of cortisol, IL-6, IL-10, but lower levels of IL-4 and VEGF. Our exploratory analysis showed subjects who did not go on to respond to the inpatient admission treatment package had lower levels of MCP-1, and a trend toward lower levels of VEGF. Taking together, these data suggest that lack of clinical therapeutic benefit of antidepressants is associated with overall activation of the inflammatory system.


Assuntos
Antidepressivos/efeitos adversos , Citocinas/sangue , Depressão/sangue , Depressão/tratamento farmacológico , Inflamação/induzido quimicamente , Adulto , Estudos de Casos e Controles , Feminino , Humanos , Hidrocortisona/sangue , Interleucina-10/sangue , Interleucina-4/sangue , Interleucina-6/sangue , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento , Fator A de Crescimento do Endotélio Vascular/sangue
4.
J Psychopharmacol ; 23(8): 985-7, 2009 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-18583441

RESUMO

The psychopathologies underlying affective disorders are thought to involve persistent changes in the expression and function of both mineralocorticoid receptors and glucocorticoid receptors in the hippocampus. In addition, exposure to stressful stimuli can precipitate episodes in vulnerable individuals. The aim of this study is to determine if spironolactone as an adjunctive therapy is effective in improving residual symptoms in bipolar disorder. Four cases of euthymic bipolar disorder (BD) patients were treated with spironolactone as an adjunctive therapy in a private treatment sector. All patients met the DSM-IV diagnosis criteria for bipolar disorder. Clinical response was assessed retrospectively using the Clinical Global Impression Scale for Improvement. Spironolactone was effective in all patients. The four cases illustrate a clinical response to residual symptoms and improvement in stress response after use of spironolactone as an adjunctive therapy in BD. This pilot case series suggests reducing in residual symptoms, with spironolactone as an adjunctive therapy in these DSM-IV BD patients. Mineralocorticoid receptors antagonists' role in reducing stress-induced symptoms deserves further investigation through placebo-controlled trials.


Assuntos
Transtorno Bipolar/tratamento farmacológico , Antagonistas de Receptores de Mineralocorticoides , Espironolactona/uso terapêutico , Estresse Psicológico/tratamento farmacológico , Adulto , Transtorno Bipolar/psicologia , Feminino , Humanos , Sistema Hipotálamo-Hipofisário/efeitos dos fármacos , Masculino , Pessoa de Meia-Idade , Sistema Hipófise-Suprarrenal/efeitos dos fármacos
5.
Artigo em Inglês | MEDLINE | ID: mdl-19007842

RESUMO

Bipolar affective disorders often require adjunctive therapy to treat persistent symptoms. In order to evaluate bipolar symptoms inadequately responsive to lithium, we have compared the effects of two structurally related compounds carbamazepine (CBZ) and oxcarbazepine (OXC). We evaluated the efficacy and safety of CBZ and OXC administration in residual symptoms as an adjunctive therapy in Bipolar I (BP I) and Bipolar II (BP II) patients while on lithium maintenance treatment. We selected from 153 bipolar patients in treatment those fulfilling Research Diagnostic Criteria for mania or hypomania, according to the SADS-L and conducted in 52 bipolar patients (27 BP I, 25 BP II) a double-blind, randomized, parallel-group, single centre, clinical trial. Bipolar I and II outpatients, were randomly assigned on a 1:1 ratio to OXC (n=26) or CBZ (n=26) for an 8-week period as add-on treatment to the existing lithium regimen. Outcome measures included the Young Mania Rating Scale (YMRS), Hamilton Depression Rating Scale 21 items (HDRS-21) and Montgomery-Asberg Depression Rating Scale (MADRS), Clinical Global Impression severity (CGI-S) and improvement illness (CGI-I). These scales were administered at baseline and at the end of weeks 2, 4 and 8. All the fifty-two patients completed the trial. Overall, females were 35 (65%) and mean (S.D.) age was 39.4 (11.9) years; final doses at the end of week 8 in OXC group was 637.7 (210) mg/day and in the CBZ group 673.5 (179) mg/day; lithium plasma levels were 0.73 (0.25) meq/l and 0.71 (0.28) meq/l, respectively. Both OXC and CBZ were effective in reducing bipolar scores from baseline to endpoint (p<0.01). OXC was more effective than CBZ at weeks 4 and 8 on all 5 outcome measures. OXC resulted in greater significant mean reductions in YMRS, HDRS-21, MADRS, CGI-S and CGI-I scores from baseline to week 4 (p<0.05) and from baseline to week 8 (p<0.001), except YMRS (p<0.01). OXC appeared to be significantly more effective and with better tolerability than CBZ as add-on strategy treatment in BP I and BP II patients. This pilot, randomized clinical trial, suggests the potential usefulness of OXC as adjunctive therapy to lithium both in acute and long-term treatment of bipolar disorder. However, further adequately placebo-controlled trials are needed to expand these findings.


Assuntos
Transtorno Bipolar/tratamento farmacológico , Carbamazepina/análogos & derivados , Carbamazepina/administração & dosagem , Adulto , Antimaníacos/sangue , Antimaníacos/uso terapêutico , Carbamazepina/efeitos adversos , Depressão/tratamento farmacológico , Método Duplo-Cego , Resistência a Medicamentos , Quimioterapia Combinada , Feminino , Humanos , Compostos de Lítio/efeitos adversos , Compostos de Lítio/uso terapêutico , Masculino , Pessoa de Meia-Idade , Oxcarbazepina , Projetos Piloto , Escalas de Graduação Psiquiátrica , Índice de Gravidade de Doença
6.
J Clin Pharm Ther ; 31(6): 523-34, 2006 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-17176358

RESUMO

BACKGROUND: Thirty years ago, psychiatrists had only a few choices of old neuroleptics available to them, currently defined as conventional or typical antipsychotics, as a result schizophrenics had to suffer the severe extra pyramidal side effects. Nowadays, new treatments are more ambitious, aiming not only to improve psychotic symptoms, but also quality of life and social reinsertion. Our objective is to briefly but critically review the advances in the treatment of schizophrenia with antipsychotics in the past 30 years. We conclude that conventional antipsychotics still have a place when just the cost of treatment, a key factor in poor regions, is considered. The atypical antipsychotic drugs are a class of agents that have become the most widely used to treat a variety of psychoses because of their superiority with regard to extra pyramidal symptoms. We can envisage different therapeutic strategies in the future, each uniquely targeting a different dimension of schizophrenia, be it positive, negative, cognitive or affective symptoms.


Assuntos
Antipsicóticos/uso terapêutico , Transtornos Psicóticos/tratamento farmacológico , Antipsicóticos/classificação , Aripiprazol , Benzodiazepinas/uso terapêutico , Clozapina/uso terapêutico , Dibenzotiazepinas/uso terapêutico , Humanos , Olanzapina , Piperazinas/uso terapêutico , Fumarato de Quetiapina , Quinolonas/uso terapêutico , Receptores Dopaminérgicos/efeitos dos fármacos , Receptores de Serotonina/efeitos dos fármacos , Risperidona/uso terapêutico , Esquizofrenia/diagnóstico , Esquizofrenia/tratamento farmacológico , Tiazóis/uso terapêutico
7.
J Psychopharmacol ; 14(1): 61-6, 2000 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-10757255

RESUMO

The purpose of this study was to compare the efficacy and tolerability of venlafaxine and amitriptyline in outpatients with major depression with or without melancholia. This was an 8-week, multicentre, randomized, double-blind, parallel-group comparison of venlafaxine and amitriptyline. Outpatients with DSM-IV major depression, a minimum score of 20 on the 21-item Hamilton Depression Rating Scale (HAM-D), and depressive symptoms for at least 1 month were eligible. Patients were randomly assigned to venlafaxine or amitriptyline, both drugs titrated to a maximum of 150 mg/day until study day 15. The primary efficacy variables were the final on-therapy scores on the HAM-D, Montgomery-Asberg Depression Rating Scale and Clinical Global Impression severity scales. Data were evaluated on an intent-to-treat basis using the LOCF method. One hundred and 16 patients were randomized, and 115 were evaluated for efficacy. Both drugs showed efficacy in the treatment of depression with or without melancholia. No significant differences were noted between treatments for any efficacy parameter. However, significantly (p < 0.05) more patients in the amitriptyline group had at least one adverse event. These results should support the efficacy and tolerability of venlafaxine in comparison with amitriptyline for treating major depression with or without melancholia.


Assuntos
Amitriptilina/uso terapêutico , Antidepressivos de Segunda Geração/uso terapêutico , Antidepressivos Tricíclicos/uso terapêutico , Cicloexanóis/uso terapêutico , Transtorno Depressivo Maior/tratamento farmacológico , Transtorno Depressivo/tratamento farmacológico , Adolescente , Adulto , Assistência Ambulatorial , Amitriptilina/efeitos adversos , Antidepressivos de Segunda Geração/efeitos adversos , Antidepressivos Tricíclicos/efeitos adversos , Cicloexanóis/efeitos adversos , Transtorno Depressivo/diagnóstico , Transtorno Depressivo Maior/diagnóstico , Método Duplo-Cego , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Inventário de Personalidade , Resultado do Tratamento , Cloridrato de Venlafaxina
9.
Int Clin Psychopharmacol ; 12(6): 317-21, 1997 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-9547133

RESUMO

Neuroendocrine challenge studies are frequently used to study the pathophysiology of psychiatric illnesses and the effects of psychotropic drug treatment on brain monoamine function. Moclobemide, a reversible inhibitor of monoamine oxidase, with predominant effects on the A-type of the enzyme, was administered to 15 healthy men. Seven out of the 15 also received single blind placebo a week before the moclobemide. The individuals received moclobemide as a single dose (150 mg), followed by doses of 150 mg three times a day, during a 4-week period. Plasma prolactin was measured in the morning over a 150-min period, following the single dose, and then at the end of weeks 1, 2 and 4 of moclobemide intake. The present data show an acute and transitory increase of plasma prolactin levels after the single dose, and also during the long-term moclobemide administration. It might indicate that steady-state moclobemide levels, during the long-term drug administration, were low and thus large fluctuations of drug levels occurred between doses. Thus, it is suggested that larger doses or administering smaller doses more frequently, or both, may induce hyperprolactinaemia with clinical consequences.


Assuntos
Antidepressivos/farmacologia , Benzamidas/farmacologia , Inibidores da Monoaminoxidase/farmacologia , Prolactina/sangue , Adulto , Antidepressivos/efeitos adversos , Benzamidas/efeitos adversos , Euforia , Cefaleia/induzido quimicamente , Humanos , Masculino , Moclobemida , Inibidores da Monoaminoxidase/efeitos adversos , Fatores de Tempo
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