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1.
Mar Drugs ; 18(1)2020 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-31952203

RESUMO

Polyelectrolyte nanocomposites rarely reach a stable state and aggregation often occurs. Here, we report the synthesis of nanocomposites for the oral delivery of insulin composed of alginate, dextran sulfate, poly-(ethylene glycol) 4000, poloxamer 188, chitosan, and bovine serum albumin. The nanocomposites were obtained by Ca2+-induced gelation of alginate followed by an electrostatic-interaction process among the polyelectrolytes. Chitosan seemed to be essential for the final size of the nanocomposites and there was an optimal content that led to the synthesis of nanocomposites of 400-600 nm hydrodynamic size. The enhanced stability of the synthesized nanocomposites was assessed with LUMiSizer after synthesis. Nanocomposite stability over time and under variations of ionic strength and pH were assessed with dynamic light scattering. The rounded shapes of nanocomposites were confirmed by scanning electron microscopy. After loading with insulin, analysis by HPLC revealed complete drug release under physiologically simulated conditions.


Assuntos
Insulina/administração & dosagem , Insulina/química , Nanocompostos/química , Polissacarídeos/química , Administração Oral , Alginatos/química , Quitosana/química , Portadores de Fármacos/química , Sistemas de Liberação de Medicamentos/métodos , Géis/química , Polietilenoglicóis/química , Soroalbumina Bovina/química , Eletricidade Estática
2.
Neuroscience ; 310: 152-62, 2015 Dec 03.
Artigo em Inglês | MEDLINE | ID: mdl-26391922

RESUMO

The clinical use of benzodiazepines is limited by the development of tolerance to their pharmacological effects. Tolerance to each of the pharmacological actions of benzodiazepines develops at different rates. The aim of this work was to investigate the mechanism of tolerance by performing behavioral tests in combination with biochemical studies. To this end, we administered prolonged treatments of diazepam to rats for 7 or 14 days. Tolerance to the sedative effects of diazepam was detected by means of the open field test after the 7- and 14-day treatments, whereas tolerance to the anxiolytic actions of benzodiazepine manifested following only the 14-day treatment in the elevated plus maze. The cerebral cortical concentrations of diazepam did not decline after the diazepam treatments, indicating that tolerance was not due to alterations in pharmacokinetic factors. The uncoupling of GABA/benzodiazepine site interactions and an increase in the degree of phosphorylation of the GABAA receptor γ2 subunit at serine 327 in the cerebral cortex were produced by day 7 of diazepam treatment and persisted after 14 days of exposure to benzodiazepine. Thus, these alterations could be part of the mechanism of tolerance to the sedative effects of diazepam. An increase in the percentage of α1-containing GABAA receptors in the cerebral cortex was observed following the 14-day treatment with diazepam but not the 7-day treatment, suggesting that tolerance to the anxiolytic effects is associated with a change in receptor subunit composition. The understanding of the molecular bases of tolerance could be important for the development of new drugs that maintain their efficacies over long-term treatments.


Assuntos
Ansiolíticos/farmacologia , Córtex Cerebral/efeitos dos fármacos , Diazepam/farmacologia , Tolerância a Medicamentos/fisiologia , Regulação da Expressão Gênica/efeitos dos fármacos , Receptores de GABA-A/metabolismo , Animais , Ansiolíticos/metabolismo , Benzodiazepinas/farmacologia , Sítios de Ligação/efeitos dos fármacos , Córtex Cerebral/metabolismo , Diazepam/metabolismo , Esquema de Medicação , Imunoprecipitação , Masculino , Aprendizagem em Labirinto/efeitos dos fármacos , Ligação Proteica/efeitos dos fármacos , RNA Mensageiro/metabolismo , Ratos , Ratos Sprague-Dawley , Receptores de GABA-A/genética , Fatores de Tempo , Ácido gama-Aminobutírico/farmacologia
3.
Euro Surveill ; 19(26)2014 Jul 03.
Artigo em Inglês | MEDLINE | ID: mdl-25011065

RESUMO

Respiratory infections positive for human respiratory syncytial virus (RSV) subtype A were characterised in children admitted to hospitals in Rome and Ancona (Italy) over the last three epidemic seasons. Different strains of the novel RSV-A genotype ON1, first identified in Ontario (Canada) in December 2010, were detected for the first time in Italy in the following 2011/12 epidemic season. They bear an insertion of 24 amino acids in the G glycoprotein as well as amino acid changes likely to change antigenicity. By early 2013, ON1 strains had spread so efficiently that they had nearly replaced other RSV-A strains. Notably, the RSV peak in the 2012/13 epidemic season occurred earlier and, compared with the previous two seasons, influenza-like illnesses diagnoses were more frequent in younger children; bronchiolitis cases had a less severe clinical course. Nonetheless, the ON1-associated intensive care unit admission rate was similar, if not greater, than that attributable to other RSV-A strains. Improving RSV surveillance would allow timely understanding of the epidemiological and clinicopathological features of the novel RSV-A genotype.


Assuntos
Epidemias , Infecções por Vírus Respiratório Sincicial/virologia , Vírus Sincicial Respiratório Humano/genética , Adolescente , Criança , Pré-Escolar , Feminino , Variação Genética , Genótipo , Hospitalização/estatística & dados numéricos , Humanos , Lactente , Itália/epidemiologia , Masculino , Dados de Sequência Molecular , Filogenia , RNA Viral/química , Infecções por Vírus Respiratório Sincicial/diagnóstico , Infecções por Vírus Respiratório Sincicial/epidemiologia , Vírus Sincicial Respiratório Humano/classificação , Vírus Sincicial Respiratório Humano/isolamento & purificação , Infecções Respiratórias/epidemiologia , Estações do Ano , Análise de Sequência de DNA
4.
Neuroscience ; 257: 119-29, 2014 Jan 17.
Artigo em Inglês | MEDLINE | ID: mdl-24215979

RESUMO

Persistent activation of GABAA receptors triggers compensatory changes in receptor function that are relevant to physiological, pathological and pharmacological conditions. Chronic treatment of cultured neurons with GABA for 48h has been shown to produce a down-regulation of receptor number and an uncoupling of GABA/benzodiazepine site interactions with a half-time of 24-25h. Down-regulation is the result of a transcriptional repression of GABAA receptor subunit genes and depends on activation of L-type voltage-gated calcium channels. The mechanism of this uncoupling is currently unknown. We have previously demonstrated that a single brief exposure of rat primary neocortical cultures to GABA for 5-10min (t½=3min) initiates a process that results in uncoupling hours later (t½=12h) without a change in receptor number. Uncoupling is contingent upon GABAA receptor activation and independent of voltage-gated calcium influx. This process is accompanied by a selective decrease in subunit mRNA levels. Here, we report that the brief GABA exposure induces a decrease in the percentage of α3-containing receptors, a receptor subtype that exhibits a high degree of coupling between GABA and benzodiazepine binding sites. Initiation of GABA-induced uncoupling is prevented by co-incubation of GABA with high concentrations of sucrose suggesting that it is dependent on a receptor internalization step. Moreover, results from immunocytochemical and biochemical experiments indicate that GABA exposure causes an increase in GABAA receptor endocytosis. Together, these data suggest that the uncoupling mechanism involves an initial increase in receptor internalization followed by activation of a signaling cascade that leads to selective changes in receptor subunit levels. These changes might result in the assembly of receptors with altered subunit compositions that display a lower degree of coupling between GABA and benzodiazepine sites. Uncoupling might represent a homeostatic mechanism that negatively regulates GABAergic transmission under physiological conditions in which synaptic GABAA receptors are transiently activated for several minutes.


Assuntos
Benzodiazepinas/farmacologia , Neurônios/efeitos dos fármacos , Receptores de GABA-A/química , Receptores de GABA-A/metabolismo , Ácido gama-Aminobutírico/farmacologia , Animais , Benzodiazepinas/metabolismo , Sítios de Ligação/efeitos dos fármacos , Células Cultivadas , Córtex Cerebral/citologia , Embrião de Mamíferos , Flunitrazepam/farmacocinética , Antagonistas GABAérgicos/farmacologia , Moduladores GABAérgicos/farmacocinética , Regulação da Expressão Gênica/efeitos dos fármacos , Picrotoxina/farmacologia , Ligação Proteica/efeitos dos fármacos , Transporte Proteico/efeitos dos fármacos , Ratos , Ratos Sprague-Dawley , Receptores de GABA-A/genética , Fatores de Tempo , Trítio/farmacocinética
5.
Eur J Med Genet ; 55(6-7): 404-13, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22522176

RESUMO

Duplications leading to functional disomy of chromosome Xq28, including MECP2 as the critical dosage-sensitive gene, are associated with a distinct clinical phenotype in males, characterized by severe mental retardation, infantile hypotonia, progressive neurologic impairment, recurrent infections, bladder dysfunction, and absent speech. Female patients with Xq duplications including MECP2 are rare. Only recently submicroscopic duplications of this region on Xq28 have been recognized in four females, and a triplication in a fifth, all in combination with random X-chromosome inactivation (XCI). Based on this small series, it was concluded that in females with MECP2 duplication and random XCI, the typical symptoms of affected boys are not present. We present clinical and molecular data on a series of five females with an Xq28 duplication including the MECP2 gene, both isolated and as the result of a translocation, and compare them with the previously reported cases of small duplications in females. The collected data indicate that the associated phenotype in females is distinct from males with similar duplications, but the clinical effects may be as severe as seen in males.


Assuntos
Anormalidades Múltiplas/diagnóstico , Duplicação Cromossômica , Cromossomos Humanos X/genética , Deficiência Intelectual/genética , Proteína 2 de Ligação a Metil-CpG/genética , Fenótipo , Anormalidades Múltiplas/genética , Criança , Bandeamento Cromossômico , Feminino , Estudos de Associação Genética , Humanos , Linhagem , Inativação do Cromossomo X
6.
Int J Immunopathol Pharmacol ; 24(1): 217-23, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21496405

RESUMO

The aim of this study is to monitor type I interferon (IFN) activation in the cervical mucosa of Human Papillomavirus (HPV)-infected and uninfected women attending a routine gynaecologic clinic. The expression of three IFN-induced genes (MxA coding for human Mixovirus resistance protein A, ISG15 Interferon Stimulated Gene coding for a 15 kDa ubiquitin-like protein and UBP43 coding for the ISG15 isopeptidase) was determined as the mRNA copy number in cervical cells, normalized to the mRNA ones of the beta-glucuronidase gene. Type-specific HPV-DNA load was concurrently determined in the HPV-positive samples. Out of 127 samples tested, 54 were sufficient for both DNA and RNA extraction. The type-specific HPV-DNA copy numbers in the 34 HPV-positive samples varied widely. No significant association was found between copy numbers of MxA, ISG15, UBP43 and HPV status or viral load. However, despite a marked inter-individual variability, ISG15 expression was significantly higher when low-risk HPV infections were compared with HPV-negative samples, while high-risk HPV infections had very low ISG15 levels. The lack of ISG15 activation in high-risk HPV-infected cervical cells could be due to the lack of p53-mediated induction or to HPV-directed specific inhibition of type I IFN pathways. This study approach might be of value in clarifying the role of type I IFN activation in determining the clearance or persistence of HPV infections.


Assuntos
Colo do Útero/imunologia , Interferon Tipo I/fisiologia , Mucosa/imunologia , Infecções por Papillomavirus/imunologia , Adolescente , Adulto , Colo do Útero/virologia , Citocinas/genética , DNA Viral/análise , Endopeptidases/genética , Feminino , Proteínas de Ligação ao GTP/genética , Regulação da Expressão Gênica , Humanos , Pessoa de Meia-Idade , Mucosa/virologia , Proteínas de Resistência a Myxovirus , Papillomaviridae/isolamento & purificação , Infecções por Papillomavirus/virologia , RNA Mensageiro/análise , Ubiquitina Tiolesterase , Ubiquitinas/genética , Carga Viral
7.
Eur J Neurol ; 18(1): 150-7, 2011 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-20550563

RESUMO

BACKGROUND: hereditary spastic paraplegias (HSP) are a group of neurodegenerative disorders characterized by progressive lower extremity spastic weakness. SPG7, SPG4 and SPG3A are some of the autosomal genes recently found as mutated in recessive or dominant forms of HSP in childhood. SPG31 is more often associated with a pure spastic paraplegia phenotype, but genotype-phenotype correlation is still unclear. The aims of the current study was: (i) to verify the mutational frequency of SPG4, SPG3A, SPG31 and SPG7 genes in our very-well-selected childhood sample, and (ii) to improve our knowledge about the clinical and electrophysiological HSP phenotypes and their possible correlation with a specific mutation. METHODS: a sample of 14 Italian children affected by pure HSP (mean age at diagnosis 5.9 years) was extensively investigated with electrophysiological, neuroradiological and genetic tests. RESULTS: three SPG4 mutations were identified in three patients: two novel missense mutations, both sporadic, and one multiexonic deletion already reported. A novel large deletion in SPG31 gene involving exons 2-5 was also detected in one young patient. No mutations in the SPG7 and in the SPG3A genes were found. CONCLUSIONS: our data confirm that HSP represent a heterogeneous group of genetic neurodegenerative disorders, also in sporadic or autosomal recessive early onset forms. Multiplex Ligation-dependent Probe Amplification-based mutation screening for SPG4 and SPG31 genes would be added to sequencing-based screening of SPG4, SPG31 and SPG3A genes in the routine diagnosis of HSP children.


Assuntos
Deleção de Genes , Mutação , Paraplegia Espástica Hereditária/genética , Paraplegia Espástica Hereditária/fisiopatologia , ATPases Associadas a Diversas Atividades Celulares , Adenosina Trifosfatases/genética , Adolescente , Idade de Início , Criança , Pré-Escolar , Análise Mutacional de DNA , Feminino , GTP Fosfo-Hidrolases/genética , Proteínas de Ligação ao GTP , Frequência do Gene , Testes Genéticos , Humanos , Masculino , Proteínas de Membrana , Metaloendopeptidases/genética , Fenótipo , Espastina
8.
Eur J Clin Microbiol Infect Dis ; 28(8): 977-81, 2009 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-19360443

RESUMO

To evaluate the performance of different commercial assays for the detection of recent cytomegalovirus (CMV) in pregnancy, the sensitivity and specificity of assays for CMV-specific IgM antibodies were compared. Routine specimens from pregnant women were screened for CMV IgM using the Abbott AxSYM assay. Sera that were reactive according to AxSYM were further tested for IgM by other commercial assays. In selected IgM positive samples a CMV IgG avidity assay (Radim) and virus isolation from urine (shell vial) were also performed. The positivity rate for IgM anti-CMV by AxSYM was relatively high (140 out of 492, combining reactive and grayzone results). Only 26 of the 140 samples were positive for IgM according to Radim. The IgG avidity was low in 16 of the 43 samples tested, and the Radim and DiaSorin IgM assays were negative in 5 of them; 2 of the latter cases were also positive for viral isolation according to a shell vial method. There are differences in the sensitivity of the commercially available tests for CMV antibodies. CMV screening in pregnancy is performed as a first step by immunoassays and the choice of highly sensitive IgM test associated with further serological and virological methods could help to identify early primary infections.


Assuntos
Infecções por Citomegalovirus/diagnóstico , Imunoensaio/métodos , Complicações Infecciosas na Gravidez/diagnóstico , Kit de Reagentes para Diagnóstico , Anticorpos Antivirais/sangue , Afinidade de Anticorpos , Feminino , Humanos , Imunoglobulina G/sangue , Imunoglobulina M/sangue , Gravidez , Sensibilidade e Especificidade , Urina/virologia
10.
Encephale ; 29(5): 438-44, 2003.
Artigo em Francês | MEDLINE | ID: mdl-14615693

RESUMO

INTRODUCTION: The main therapeutic objective for depression is remission (absence of clinical signs of the disorder and low scores on assessment scales), yet partial remission rates remain high (insufficient criteria for diagnosing the disorder while clinically and psychometrically assessable symptoms continue to linger. The presence of residual symptoms is associated with a higher relapse rate of depression, occurring up to 5 times earlier, an increased suicide rate, significant use of healthcare services and a marked social impairment. The most frequently reported symptoms are specific to depression, i.e. anxiety and irritability, depressed mood, feelings of guilt and loss of interest in activities, asthenia and difficulty falling asleep at night. Residual symptoms constitute a valid and reliable clinical marker of prognosis (especially for relapse and chronicity) and must be treated with specific therapeutic strategies. Studies on depression with residual symptoms are few and mainly focus on populations of hospitalized patients or those with a severe form of depression. Since little work has been done with regard to patients monitored on an outpatient basis, we felt it was appropriate to select a population of depressed patients from private psychiatric practice. Our main objective was to analyze the frequency of residual symptoms after 8 to 12 weeks of antidepressant treatment and to study the clinical and socio-demographic characteristics of these subjects. DESIGN: 1 790 patients who had presented with one major depressive episode per DSM IV criteria and who had been receiving antidepressant treatment for 8 to 12 weeks were included and evaluated. 463 private psychiatrists practicing in metropolitan France were randomly selected and stratified by region and sex ratio (30% female and 70% male) to obtain a sample as representative as possible of the French psychiatrist population. The following were measured and assessed: anthropometric and socio-demographic characteristics, the history of depression, a description of the last major depressive episode, a description of its management, current clinical variables, the Hamilton Depression Rating Scale (HDRS) score, the physician's assessment of residual symptoms, and a description of the patient's management on the day of the appointment. RESULTS: Following acute treatment, evaluation of depressive symptoms on the Hamilton scale showed that 549 (32%) of subjects had a score below 8; 792 patients (46.7%) had a score between 8 and 18; and 354 (20%) had a score above 18. Patients in the first group (HDRS<8) who were considered to be in remission started treatment early (chi2=18.28, DOF=4, p<0.01) for a first episode (51.3%) with a low number of initial symptoms (chi2=27.03, DOF=6, p<0.01). The evaluators found persistent depressogenic factors (chi2=15.9, DOF=2, p<0.01) and significant psychiatric co-morbidity (chi2=18.28, DOF=4, p<0.01) in subjects in partial remission (HDRS between 8 and 18). The non-responders (HDRS>18) presented a history of more depressive episodes (chi2=17.04, DOF=4, p<0.01) and a delay of more than 30 days before treatment was initiated (chi2=18.2, DOF=4, p<0.01). With regard to the nature of residual symptoms, at least 50% of subjects in partial remission were very symptomatic for depressive mood (65.4%), psychic anxiety (56.6%), and loss of interest and time away from work (49.4%). Indicators of severe depression (early morning insomnia, psychomotor retardation, agitation, hypochondriasis, weight loss and lack of awareness of the disorder) were reported less frequently, and usually not at all. Conclusion - These results illustrate three important points. First, a significant percentage (46.7%) of patients who responded to treatment subsequent to the acute period presented with residual symptoms. Second, these symptoms are included in the areas of depressed mood - psychic anxiety . Third, a delay in initiating treatment seems to have an effect on response. These results confirm the need to develop strategies to screen for these residual forms for these residual forms of depression, as well as specific methods to treat them.


Assuntos
Assistência Ambulatorial , Antidepressivos/uso terapêutico , Transtorno Depressivo Maior/tratamento farmacológico , Transtorno Depressivo Maior/reabilitação , Transtorno Depressivo Maior/diagnóstico , Manual Diagnóstico e Estatístico de Transtornos Mentais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Observação , Índice de Gravidade de Doença , Fatores de Tempo
11.
Encephale ; 29(4 Pt 1): 306-12, 2003.
Artigo em Francês | MEDLINE | ID: mdl-14615700

RESUMO

UNLABELLED: Recent studies suggest that depression with residual symptoms is a frequent progressive form of this disease. It is associated with a poor prognosis that translates into an earlier and higher relapse rate, and has a significant medical and social impact. Several literature reviews emphasize that residual symptoms are under-evaluated and that their treatment should follow an incisive strategy with the goal of complete eradication of symptoms. Specific patterns have not been detected either, and the evaluation of residual symptoms remains subject to numerous biases due to the lack of a validated definition. The purpose of this study was to analyze the opinions and attitudes of psychiatrists about residual symptoms following major depressive episodes treated with antidepressants as part of their daily private practice. DESIGN: 867 psychiatrists were selected from across France to form a representative sample of the medical specialization. They were questioned with a closed-choice questionnaire on the scope of the residual depressive symptoms concept (definition, professional consensus), determining factors in their onset (factors associated with the patient, with the initial episode, with management) and their practical and therapeutic attitude towards these symptoms. RESULTS: The estimated prevalence of residual symptoms in their depressed patients was 25%. Fifty-seven percent of the physicians queried felt the concept was appropriate, but 70.3% thought that it did not have a strong professional consensus. The definitions deemed most appropriate were those involving the persistence of clinical signs (asthenia or minor cognitive impairment), whereas the use of psychometric criteria was mentioned less often. There is a clear absence of consensus concerning the diagnostic delay of residual symptoms, as 30% diagnosed them after 6 months. Responses about factors that may be predictive or affect the onset of residual symptoms (associated with the patient, the nature of the initial episode and the management) did not reflect a unified position, nor did they necessarily correspond to the data in the literature. However, while the therapeutic attitude seemed adequate (verifying treatment compliance, clinical re-evaluation, therapeutic re-adjustment), 64% of the physicians considered residual symptoms to be a therapeutic challenge. CONCLUSION: Through the wide disparity of responses, this observational study demonstrates the absence of consensus with regard to the concept of residual symptoms. While it does appear that practitioners often adopt an approach that is pragmatic yet still close to that recommended by the ANAES [Agence National d'Accréditation et d'Evaluation en Santé, French National Health Accreditation and Evaluation Agency], such an approach does not seem to be optimized for the specific treatment of these symptoms. This clinical concept remains little studied, and lacking a specific definition, appears to be under-evaluated and under-treated by conventional treatment strategies. Further research on residual symptoms is necessary in order to establish true and valid definitions that will.


Assuntos
Transtorno Depressivo Maior , Adulto , Comorbidade , Transtorno Depressivo Maior/diagnóstico , Transtorno Depressivo Maior/epidemiologia , Transtorno Depressivo Maior/terapia , Diagnóstico Diferencial , Feminino , Seguimentos , França/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Transtornos da Personalidade/epidemiologia , Prevalência , Índice de Gravidade de Doença , Inquéritos e Questionários
12.
Encephale ; 29(1): 72-9, 2003.
Artigo em Francês | MEDLINE | ID: mdl-12640330

RESUMO

We report on the case of a 20 year old woman with no previous psychiatric history, who displayed a first episode of catatonia with acute onset. Symptoms started plainly with sudden general impairment, intense asthenia, headache, abdominal pain and confusion. After 48 hours, the patient was first admitted to an emergency unit and transferred to an internal medicine ward afterwards. She kept confused. Her behaviour was bizarre with permanent swinging of pelvis, mannerism, answers off the point and increasingly poor. The general clinical examination was normal, except for the presence of a regular tachycardia (120 bpm). The paraclinical investigations also showed normal: biology, EEG, CT Scan, lumbar puncture. Confusion persisted. The patient remained stuporous, with fixed gazing and listening-like attitudes. She managed to eat and move with the help of nurses but remained bedridden. The neurological examination showed hypokinaesia, extended hypotonia, sweating, urinary incontinence, bilateral sharp reflexes with no Babinski's sign and an inexhaustible nasoorbicular reflex. The patient was mute and contrary, actively closed her eyes, but responded occasionally to simple instructions. For short moments, she suddenly engaged in inappropriate behaviors (wandering around) while connecting back to her environment answering the telephone and talking to her parents. The patient's temperature rose twice in the first days but with no specific etiology found. During the first 8 days of hospitalization, an antipsychotic treatment was administered: haloperidol 10 mg per os daily and cyamemazine 37.5 mg i.m. daily. Despite these medications, the patient worsened and was transferred to our psychiatric unit in order to manage this catatonic picture with rapid onset for which no organic etiology was found. On admission, the patient was stuporous, immobile, unresponsive to any instruction, with catalepsy, maintenance of postures, severe negativism and refusal to eat. A first treatment by benzodiazepine (clorazepate 20 mg i.v.) did not lead to any improvement. The organic investigations were completed with cerebral MRI and the ruling out of a Wilson's disease. Convulsive therapy was then decided. It proved dramatically effective from the first attempt; 4 shocks were carried out before the patient's relatives ask for her discharge from hospital. The patient revealed she had experienced low delirium during her catatonic state. The clinical picture that followed showed retardation with anxiety. She was scared with fear both for the other patients and the nursing team. She kept distant and expressed few affects. The treatment at the time of discharge was olanzapine 10 mg per os. She was discharged with a diagnosis of catatonia but with no specific psychiatric etiological diagnosis associated. She discontinued her follow-up a few weeks later. After one year, we had no information about her. Catatonia has now become rare but remains a problem for clinicians. We reviewed data concerning short term vital prognosis and psychiatric long term prognosis in catatonia. Lethal catatonia is associated with acute onset, both marked psychomotor and neurovegetative symptoms. In the light of literature, there is no proband clinical criterion during the episode that is of relevant diagnostic value to ascertain the psychiatric etiology.


Assuntos
Catatonia/diagnóstico , Doença Aguda , Adulto , Ansiolíticos/uso terapêutico , Antipsicóticos/uso terapêutico , Catatonia/tratamento farmacológico , Catatonia/reabilitação , Clorazepato Dipotássico/uso terapêutico , Serviços de Emergência Psiquiátrica , Feminino , Haloperidol/uso terapêutico , Hospitalização , Humanos , Fenotiazinas/uso terapêutico , Prognóstico
13.
Pathologica ; 93(1): 20-7, 2001 Feb.
Artigo em Italiano | MEDLINE | ID: mdl-11294015

RESUMO

A pilot study has been carried out to evaluate women's compliance to a screening program for cervical cancer. The study, initiated in 1994, was performed in conjunction with the ACRO project of the CNR by the Italian National Health Institute, in collaboration with La Sapienza University of Rome and the National Institute for Cancer Research in Genoa. A preliminary telephone survey was carried out on a sample of 400 women (200 in Rome and 200 in Genoa) to assess, among other factors, their attitude towards the screening program. Afterwards, an ad hoc advertising campaign was launched and 21,827 women, randomly chosen from the register office's lists, were sent a personal invitation to participate in the screening. Most women showed interest in attending the screening program at the interview, but the percentages of participation were low (25.7% in Genoa and 27.3% in Rome). On the other hand, a high percentage of women who participated in the screening had already had a Pap test in the previous three years (Genoa, 73%; Rome, 76%). The recruiting techniques that were used in this study, and that are commonly used, do not seem to reach the core of the target population for cervical screening, i.e. women who have never had a Pap test or who had a Pap test more than 5 years earlier. New methods of recruiting aimed at categories at risk and based more on direct contacts need to be developed.


Assuntos
Educação em Saúde/organização & administração , Inquéritos Epidemiológicos , Programas de Rastreamento/organização & administração , Programas Nacionais de Saúde/organização & administração , Folhetos , Seleção de Pacientes , Neoplasias do Colo do Útero/prevenção & controle , Esfregaço Vaginal , Adulto , Idoso , Atitude Frente a Saúde , Carcinoma de Células Escamosas/diagnóstico , Carcinoma de Células Escamosas/epidemiologia , Feminino , Educação em Saúde/economia , Educação em Saúde/métodos , Humanos , Itália/epidemiologia , Programas de Rastreamento/economia , Programas de Rastreamento/psicologia , Pessoa de Meia-Idade , Programas Nacionais de Saúde/economia , Aceitação pelo Paciente de Cuidados de Saúde/psicologia , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Cooperação do Paciente/estatística & dados numéricos , Projetos Piloto , Serviços Postais , Prevalência , Avaliação de Programas e Projetos de Saúde , Distribuição Aleatória , Cidade de Roma/epidemiologia , Fatores Socioeconômicos , Telefone , População Urbana , Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/epidemiologia , Esfregaço Vaginal/psicologia , Esfregaço Vaginal/estatística & dados numéricos , Displasia do Colo do Útero/diagnóstico , Displasia do Colo do Útero/epidemiologia
14.
Acta Psychiatr Scand ; 103(1): 66-72, 2001 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-11202131

RESUMO

OBJECTIVE: To assess, in depressed patients, the clinical benefit of mianserin augmentation of fluoxetine or the the benefit of switching treatment from fluoxetine to mianserin. METHOD: In a 6-week double-blind study we compared the therapeutic efficiency and tolerance of mianserin 60 mg/day (N = 34), mianserin 60 mg/day plus fluoxetine 20 mg/day (N = 32) and continuing fluoxetine 20 mg/day (N = 38) in patients with major depression who did not respond to previous fluoxetine treatment. RESULTS: Intent-to-treat analysis showed that at week 6 the decrease in the Hamilton Depression rating scale score was significantly (P < or = 0.03) greater in the mianserin plus fluoxetine group when compared to the fluoxetine group (effect size 0.665). Switching from fluoxetine to mianserin gave intermediate results. Mianserin augmentation of fluoxetine was well tolerated. CONCLUSION: Mianserin augmentation of fluoxetine in patients non-responders to fluoxetine 20 mg/day increases response to treatment and is well tolerated.


Assuntos
Antidepressivos de Segunda Geração/uso terapêutico , Transtorno Depressivo Maior/tratamento farmacológico , Fluoxetina/uso terapêutico , Mianserina/uso terapêutico , Adulto , Antidepressivos de Segunda Geração/farmacologia , Método Duplo-Cego , Quimioterapia Combinada , Feminino , Fluoxetina/farmacologia , Humanos , Masculino , Mianserina/farmacologia , Pessoa de Meia-Idade , Resultado do Tratamento
15.
Encephale ; 26(4): 58-66, 2000.
Artigo em Francês | MEDLINE | ID: mdl-11064841

RESUMO

Among somatoform disorders, pain disorder (DSM IV) appears to be relatively common in general practice and to cause social, psychological, and functional impairment. A previous study conducted by Lemoine (1997) has shown that sulpiride is more effective than placebo in reducing intensity and frequency of pain in this disorder. The aim of our study was to assess safety and efficacy of sulpiride in a large sample of patients under natural conditions of use, in general practice. In a multicenter, open clinical trial, 669 patients (mean age: 47 years +/- 12; male: 245, female: 424) fulfilling the DSM IV criteria for pain disorder (of gastrointestinal localization), were included by 321 general practitioners (GP) and treated for 6 weeks with sulpiride 150 mg/d. Investigators' evaluations were planned at D14 and D42. Furthermore a diary was given to each patient for self evaluation and intercurrent events reporting. The pain was of psychological type in 93% of cases and caused social or working disabilities in 78% of patients. At inclusion the mean score of the Hamilton Anxiety Rating Scale was 18 +/- 8, and the mean score of the depression scale HARD (Humeur, Angoisse, Ralentissement, Danger) was 14.8 +/- 6.4. During the study 7.9% of the patients had at least one adverse event, and 3% of patients were withdrawn for adverse event. Safety assessed with a specific variable (grouping together adverse events' reporting and results of CGI item 3) was good for 88% of patients. The principal criterion of efficacy was the clinician's evaluation of the intensity and frequency of abdominal pain on a four-point scale from 0 (asymptomatic) to 3 (important/continuous) from D0 to D End a decrease in pain intensity (91% of patients) and in pain frequency (89%) was observed as well as in frequency and intensity of related gastroenterological symptoms such as disturbances of bowel movements (79% and 78%), bloated symptoms (88% and 83%), nausea/vomiting (90% and 90%). A similar improvement (p < 0.001) was observed from D0 to End point on the self evaluation parameters (Visual Analogic Scales), assessing pain (mean score D0-D End: 17.1 +/- 15.9), quality of sleep (mean score D0-D End: 27.1 +/- 17.8), activity (mean score D0-D End: 24.4 +/- 18.8), and appetite (mean score D0-D End: 22.6 +/- 16.6). In conclusion these results confirm the usefulness of sulpiride in the treatment of pain disorders a symptomatology known to cause difficulties to GP's in their practice.


Assuntos
Dor Abdominal/psicologia , Transtornos Somatoformes/tratamento farmacológico , Sulpirida/uso terapêutico , Dor Abdominal/tratamento farmacológico , Adulto , Idoso , Doença Crônica , Doenças Funcionais do Colo/tratamento farmacológico , Doenças Funcionais do Colo/psicologia , Medicina de Família e Comunidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Transtornos Somatoformes/psicologia , Sulpirida/efeitos adversos , Resultado do Tratamento
16.
Encephale ; 26(5): 30-8, 2000.
Artigo em Francês | MEDLINE | ID: mdl-11192802

RESUMO

Improved compliance with antipsychotic medication is a major issue in schizophrenic management. For this purpose educational programs have been used, but up to now, little or no information has been gathered or published in France concerning schizophrenic patients' opinion on information they have about their disease and their treatment. Thus we conducted a survey in concert with 78 psychiatrists from the French psychiatric health service. From this cross sectional survey we assessed 336 outpatients (male: 72%; mean age: 36 +/- 10.4 years) with schizophrenia according to the DSM IV (paranoid sub type: 57%, disorganized: 12%, catatonic: 1%, undifferentiated: 12%, residual: 18%). The mean duration of the illness was 11.6 years (sd: 8.5) and the mean duration of the follow up with the same psychiatrist was 5.4 years (sd: 5.1). Patients completed a questionnaire which assessed their level of information on mental illness and treatment. The diagnosis of schizophrenia has been told to their patients by 39% of the psychiatrists, and treatment has been explained to the patients by 96% of the practitioners. Results indicate less than half of the patients (45%) felt ill, only 46% thought they knew their illness well or very well (nevertheless only 31% of them named spontaneously the diagnosis of schizophrenia or psychosis), and 61% considered that they had been given sufficient information. Most of the patients (79%) were persuaded that their treatment was useful, and 75% of patient were completely satisfied with their treatment. Surprisingly 92% reported taking their medication regularly. Most patients think that a high level of information about their illness (74%) and treatment (79%) help them to cope better with their schizophrenia. Analysis performed according to patients characteristics indicated that paranoid patients felt more ill (p = 0.035) than others, thought to know less about their illness (p = 0.0065), and were less satisfied with their treatment (p = 0.04) and their level of information (p = 0.03). Patients with a duration of their illness longer than 10 years were more convinced of the utility of their treatment (p = 0.02) and had debated more on the choice of their treatment with their psychiatrist (p = 0.047). Patients older than 35 years were more satisfied with their information (p = 0.002). More patients with atypical antipsychotics accepted to take their treatment on a regular basis (p = 0.035) compared to patients under classical neuroleptics. This survey underlines that mental health consumers' opinions can be obtained even in the field of schizophrenia, and argues in favour of further such investigations. It also highlights the need for educational programs on schizophrenia and antipsychotic medications.


Assuntos
Antipsicóticos/uso terapêutico , Educação de Pacientes como Assunto , Esquizofrenia/tratamento farmacológico , Psicologia do Esquizofrênico , Papel do Doente , Adaptação Psicológica , Adulto , Antipsicóticos/efeitos adversos , Conscientização , Estudos Transversais , Feminino , França , Humanos , Masculino , Pessoa de Meia-Idade , Cooperação do Paciente
17.
Encephale ; 26 Spec No 1: 15-22, 2000 Oct.
Artigo em Inglês, Francês | MEDLINE | ID: mdl-11294058

RESUMO

Improved compliance with antipsychotic medication is a major issue in schizophrenic management. For this purpose educational programs have been used, but up to now, little or no information has been gathered or published in France concerning schizophrenic patients' opinion on information they have about their disease and their treatment. Thus we conducted a survey in concert with 78 psychiatrists from the French psychiatric health service. From this cross sectional survey we assessed 336 outpatients (male: 72%; mean age: 36 +/- 10.4 years) with schizophrenia according to the DSM IV (paranoid sub type: 57%, disorganized: 12%, catatonic: 1%, undifferentiated: 12%, residual: 18%). The mean duration of the illness was 11.6 years (sd: 8.5) and the mean duration of the follow up with the same psychiatrist was 5.4 years (sd: 5.1). Patients completed a questionnaire which assessed their level of information on mental illness and treatment. The diagnosis of schizophrenia has been told to their patients by 39% of the psychiatrists, and treatment has been explained to the patients by 96% of the practitioners. Results indicate less than half of the patients (45%) felt ill, only 46% thought they knew their illness well or very well (nevertheless only 31% of them named spontaneously the diagnosis of schizophrenia or psychosis), and 61% considered that they had been given sufficient information. Most of the patients (79%) were persuaded that their treatment was useful, and 75% of patients were completely satisfied with their treatment. Surprisingly 92% reported taking their medication regularly. Most patients think that a high level of information about their illness (74%) and treatment (79%) help them to cope better with their schizophrenia. Analysis performed according to patients characteristics indicated that paranoid patients felt more ill (p = 0.035) than others, thought to know less about their illness (p = 0.0065), and were less satisfied with their treatment (p = 0.04) and their level of information (p = 0.03). Patients with a duration of their illness longer than 10 years were more convinced of the utility of their treatment (p = 0.02) and had debated more on the choice of their treatment with their psychiatrist (p = 0.047). Patients older than 35 years were more satisfied with their information (p = 0.002). More patients with atypical antipsychotics accepted to take their treatment on a regular basis (p = 0.035) compared to patients under classical neuroleptics. This survey underlines that mental health consumers' opinions can be obtained even in the field of schizophrenia, and argues in favour of further such investigations. It also highlights the need for educational programs on schizophrenia and antipsychotic medications.


Assuntos
Educação de Pacientes como Assunto , Esquizofrenia/reabilitação , Psicologia do Esquizofrênico , Adulto , Antipsicóticos/administração & dosagem , Antipsicóticos/efeitos adversos , Estudos Transversais , Feminino , França , Humanos , Masculino , Pessoa de Meia-Idade , Satisfação do Paciente , Esquizofrenia/diagnóstico , Esquizofrenia/epidemiologia , Papel do Doente
18.
Rev Prat ; 49(7): 717-22, 1999 Apr 01.
Artigo em Francês | MEDLINE | ID: mdl-10337215

RESUMO

Long lasting, low intensity depressive episodes have been diversely integrated according to the classifications types or the psychodynamic points of view. The concept of anxious persistent lasting depression, neurotic depressive states, neurotic depression ... have been unified into the dysthymic disorder category of the DSM classification. This concept unification have been a topic of dispute considering that dysthymic disorder was a restrictive, heterogeneous an extensively comorbid diagnosis. Nevertheless the definition of this category offers the opportunity to place the notions of temperament, personality, adjustment disorder. Including dysthymic disorders as a category inside of the mood disorders classification suggests the interest of using an antidepressive medication in presence of chronic depressive states not included in the major depressive disorder category.


Assuntos
Transtorno Distímico/classificação , Transtornos de Adaptação/classificação , Transtornos de Adaptação/diagnóstico , Transtornos de Adaptação/psicologia , Antidepressivos/uso terapêutico , Ansiedade/psicologia , Comorbidade , Transtorno Distímico/diagnóstico , Transtorno Distímico/psicologia , Transtorno Distímico/terapia , Humanos , Transtornos do Humor/classificação , Transtornos Neuróticos/psicologia , Transtornos da Personalidade/classificação , Transtornos da Personalidade/diagnóstico , Transtornos da Personalidade/psicologia , Psicoterapia , Temperamento
19.
Encephale ; 25(1): 44-9, 1999.
Artigo em Francês | MEDLINE | ID: mdl-10205733

RESUMO

State-anxiety has been defined as a transitory emotional response involving unpleasant feelings of tension and apprehensive thoughts. Trait-anxiety, on the other hand, has been defined as a personality trait referring to individual differences in the likelihood that a person would experience state anxiety in a stressful situation. The aim of the present study was to assess trait and state-anxiety in a population of patients consulting physicians for anxious complaints. Thus, patients who stopped the benzodiazepine (BZD) treatment after three months and those who continued it for six months were compared. Included patients were evaluated at inclusion (D0), after three months (M3) and after six months (M6). The investigator filled the Covi anxiety scale, the Raskin depression scale and a CGI; patients were asked to fill the Spielberger state/trait-anxiety questionnaire. 1,112 patients have been included, 48% considered their anxiety as chronic, 50% said the evolution was progressive, 87% considered it resulting of a trigger factor, 69% received a benzodiazepine (BZD) treatment. At D0: Covi anxiety score was 5.3 +/- 2.3 points, STAI I (state-anxiety) score was 57.4 +/- 12.2 points and STAI II (trait-anxiety) score was 52.7 +/- 10.2 points. At M3, all scores decreased, and 85% were considered as ameliorated, but differences were significant (p = 0.0001) at M6. When comparing at D0 patients who stopped BZD treatment at M3 and those who continued it, some differences appeared. In fact subjects who stopped the treatment had lower score at the STAI II, presented significantly less flushes (p = 0.01), less tremor (p = 0.04) and less feverishness (p = 0.05). Their score at Covi tended to be lower (p = 0.11). The severity of the disease, evaluated with the CGI, was also lower for the patients who stopped the BZD treatment. The trait-anxiety appeared as a good predictor of the efficacy of the BZD treatment. In fact, the trait-anxiety refers to a tendency to be anxious and higher anxiety necessitates longer treatment. The treatment response was less important in the patients who continued the treatment at M3, indicating the presence of residual anxiety in these patients.


Assuntos
Transtornos de Ansiedade/diagnóstico , Adolescente , Adulto , Transtornos de Ansiedade/tratamento farmacológico , Benzodiazepinas/uso terapêutico , Medicina de Família e Comunidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Escalas de Graduação Psiquiátrica , Índice de Gravidade de Doença , Inquéritos e Questionários
20.
Headache ; 39(7): 477-80, 1999.
Artigo em Inglês | MEDLINE | ID: mdl-11279930

RESUMO

Headache centers have to deal with patients suffering from headache induced by chronic substance use which is a well-recognized complication of migraine treatment. The objective of this study was to compare psychiatric comorbidity between migraineurs with and without chronic substance use: 34 migrainous inpatients with chronic substance use were compared with 34 sex-matched noncomplicated migraineurs in a case-control study. The results showed a significantly higher prevalence of major depressive disorder, panic disorder, and social phobia in the patients with a history of chronic substance use. Consistently, anxious and depressive dimensions were significantly higher in these patients. Therefore, psychiatric morbidity may be linked to chronic substance use in migraineurs. This stresses the importance of psychiatric assessment and the need for appropriate treatment in such patients.


Assuntos
Analgésicos , Anti-Inflamatórios não Esteroides , Anti-Inflamatórios não Esteroides/efeitos adversos , Transtornos de Ansiedade/psicologia , Transtorno Depressivo/psicologia , Transtornos da Cefaleia/induzido quimicamente , Transtornos de Enxaqueca/tratamento farmacológico , Síndrome de Abstinência a Substâncias/psicologia , Transtornos Relacionados ao Uso de Substâncias/psicologia , Adulto , Analgésicos/administração & dosagem , Analgésicos/efeitos adversos , Anti-Inflamatórios não Esteroides/administração & dosagem , Transtornos de Ansiedade/diagnóstico , Estudos de Casos e Controles , Comorbidade , Transtorno Depressivo/diagnóstico , Feminino , Transtornos da Cefaleia/psicologia , Humanos , Masculino , Pessoa de Meia-Idade , Transtornos de Enxaqueca/psicologia , Fatores de Risco , Síndrome de Abstinência a Substâncias/diagnóstico
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