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1.
Eur Psychiatry ; 63(1): e82, 2020 08 24.
Artigo em Inglês | MEDLINE | ID: mdl-32829740

RESUMO

BACKGROUND: Compulsory admission procedures of patients with mental disorders vary between countries in Europe. The Ethics Committee of the European Psychiatric Association (EPA) launched a survey on involuntary admission procedures of patients with mental disorders in 40 countries to gather information from all National Psychiatric Associations that are members of the EPA to develop recommendations for improving involuntary admission processes and promote voluntary care. METHODS: The survey focused on legislation of involuntary admissions and key actors involved in the admission procedure as well as most common reasons for involuntary admissions. RESULTS: We analyzed the survey categorical data in themes, which highlight that both medical and legal actors are involved in involuntary admission procedures. CONCLUSIONS: We conclude that legal reasons for compulsory admission should be reworded in order to remove stigmatization of the patient, that raising awareness about involuntary admission procedures and patient rights with both patients and family advocacy groups is paramount, that communication about procedures should be widely available in lay-language for the general population, and that training sessions and guidance should be available for legal and medical practitioners. Finally, people working in the field need to be constantly aware about the ethical challenges surrounding compulsory admissions.


Assuntos
Coerção , Internação Compulsória de Doente Mental/ética , Internação Compulsória de Doente Mental/legislação & jurisprudência , Hospitalização , Transtornos Mentais , Europa (Continente) , Humanos , Inquéritos e Questionários
2.
J Neurovirol ; 25(1): 9-21, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30298203

RESUMO

It is yet unclear if people infected with human immunodeficiency virus (HIV+) on stable, combined antiretroviral therapies (cARTs) decline with age at the same or greater rate than healthy people. In this study, we examined independent and interactive effects of HIV, age, and HIV-related clinical parameters on neuropsychological functioning and brain regional volume in a sizable group of Polish HIV+ men receiving cART. We also estimated the impact of nadir CD4 cell count, CD4 cell count during participation in the study, duration of HIV infection, or duration of cART along with age. Ninety-one HIV+ and 95 control (HIV-) volunteers ages 23-75 completed a battery of neuropsychological tests, and 54 HIV+ and 62 HIV- of these volunteers participated in a brain imaging assessment. Regional brain volume in the cortical and subcortical regions was measured using voxel-based morphometry. We have found that HIV and older age were independently related to lower attention, working memory, nonverbal fluency, and visuomotor dexterity. Older age but not HIV was associated with less volume in several cortical and subcortical brain regions. In the oldest HIV+ participants, age had a moderating effect on the relationship between the duration of cART and visuomotor performance, such as that older age decreased speed of visuomotor performance along with every year on cART. Such results may reflect the efficacy of cART in preventing HIV-associated brain damage. They also highlight the importance of monitoring neuropsychological functioning and brain structure in HIV+ patients. This is particularly important in older patients with long adherence to cART.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Córtex Cerebral/fisiopatologia , Infecções por HIV/fisiopatologia , Adulto , Fatores Etários , Idoso , Terapia Antirretroviral de Alta Atividade , Contagem de Linfócito CD4 , Linfócitos T CD4-Positivos/efeitos dos fármacos , Linfócitos T CD4-Positivos/virologia , Estudos de Casos e Controles , Córtex Cerebral/diagnóstico por imagem , Córtex Cerebral/efeitos dos fármacos , Córtex Cerebral/virologia , Infecções por HIV/diagnóstico por imagem , Infecções por HIV/tratamento farmacológico , Infecções por HIV/virologia , Humanos , Imageamento por Ressonância Magnética , Masculino , Memória de Curto Prazo/efeitos dos fármacos , Pessoa de Meia-Idade , Neuroimagem , Testes Neuropsicológicos , Tamanho do Órgão/efeitos dos fármacos
3.
Eur Arch Psychiatry Clin Neurosci ; 266(2): 89-124, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26874960

RESUMO

This European Psychiatric Association (EPA) guidance paper is a result of the Working Group on Mental Health Consequences of Economic Crises of the EPA Council of National Psychiatric Associations. Its purpose is to identify the impact on mental health in Europe of the economic downturn and the measures that may be taken to respond to it. We performed a review of the existing literature that yields 350 articles on which our conclusions and recommendations are based. Evidence-based tables and recommendations were developed through an expert consensus process. Literature dealing with the consequences of economic turmoil on the health and health behaviours of the population is heterogeneous, and the results are not completely unequivocal. However, there is a broad consensus about the deleterious consequences of economic crises on mental health, particularly on psychological well-being, depression, anxiety disorders, insomnia, alcohol abuse, and suicidal behaviour. Unemployment, indebtedness, precarious working conditions, inequalities, lack of social connectedness, and housing instability emerge as main risk factors. Men at working age could be particularly at risk, together with previous low SES or stigmatized populations. Generalized austerity measures and poor developed welfare systems trend to increase the harmful effects of economic crises on mental health. Although many articles suggest limitations of existing research and provide suggestions for future research, there is relatively little discussion of policy approaches to address the negative impact of economic crises on mental health. The few studies that addressed policy questions suggested that the development of social protection programs such as active labour programs, social support systems, protection for housing instability, and better access to mental health care, particularly at primary care level, is strongly needed.


Assuntos
Recessão Econômica , Saúde Mental/economia , Saúde Mental/normas , Psiquiatria , Sociedades Médicas/normas , Europa (Continente) , Humanos , Psiquiatria/economia , Psiquiatria/métodos , Psiquiatria/normas
4.
Int Urogynecol J ; 26(4): 563-8, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25047898

RESUMO

INTRODUCTION AND HYPOTHESIS: As in the case of cardiovascular and metabolic diseases, the prevalence of pelvic organ prolapse (POP) has been rising with the increasing proportion of elderly women in the population. The purpose of the present cross-sectional study was to evaluate the components of metabolic syndrome (MS) in urogynecological patients with a variable POP severity. METHODS: The MS risk factors (elevated waist circumference, elevated triglycerides, decreased high-density lipoprotein cholesterol, elevated blood pressure, hyperglycemia) were assessed in 100 women who were referred to our urogynecological center with pelvic floor disorders (PFD). POP was evaluated with the Pelvic Organ Prolapse Quantification system (POP-Q). RESULTS: The χ (2) test revealed that the diagnosis of MS and the presence of elevated triglycerides increased with the overall POP-Q stage. The other MS risk factors were not significantly associated with the overall POP-Q stage. MS and elevated triglycerides were predictors of the POP-Q stage ≥III [odds ratio (OR) 3.5, 95 % confidence interval (CI) 1.5-8.2 for MS and OR 3.4, 95 % CI 1.4-8.2 for elevated triglycerides, p < 0.01]. CONCLUSIONS: The diagnosis of MS and the presence of elevated triglycerides may be associated with the severity of POP in urogynecological patients. Longitudinal studies are required to assess whether the MS risk factors might predict the progression of POP and whether elimination of the risk factors might improve the prognosis in POP patients.


Assuntos
Hipertrigliceridemia/epidemiologia , Síndrome Metabólica/epidemiologia , Prolapso de Órgão Pélvico/epidemiologia , Índice de Gravidade de Doença , Idoso , Estudos Transversais , Feminino , Humanos , Pessoa de Meia-Idade , Prolapso de Órgão Pélvico/diagnóstico , Projetos Piloto , Prevalência , Fatores de Risco , Circunferência da Cintura
6.
Br J Pharmacol ; 171(4): 973-84, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24199650

RESUMO

BACKGROUND AND PURPOSE: Many dementia patients exhibit behavioural and psychological symptoms (BPSD) that include psychosis, aggressivity, depression and anxiety. Antipsychotic drugs are frequently prescribed but fail to significantly attenuate mood deficits, may interfere with cognitive function and are associated with motor and cardiac side effects, which are problematic in elderly patients. A need therefore exists for drugs that are better suited for the treatment of BPSD. EXPERIMENTAL APPROACH: We used in vitro cellular and in vivo behavioural tests to characterize ADN-1184, a novel arylsulfonamide ligand with potential utility for treatment of BPSD. KEY RESULTS: ADN-1184 exhibits substantial 5-HT6 /5-HT7 /5-HT2A /D2 receptor affinity and antagonist properties in vitro. In tests of antipsychotic-like activity, it reversed MK-801-induced hyperactivity and stereotypies and inhibited conditioned avoidance response (MED = 3 mg·kg(-1) i.p.). Remarkably, ADN-1184 also reduced immobility time in the forced swim test at low doses (0.3 and 1 mg·kg(-1) i.p.; higher doses were not significantly active). Notably, up to 30 mg·kg(-1) ADN-1184 did not impair memory performance in the passive avoidance test or elicit significant catalepsy and only modestly inhibited spontaneous locomotor activity (MED = 30 mg·kg(-1) i.p.). CONCLUSIONS AND IMPLICATIONS: ADN-1184 combines antipsychotic-like with antidepressant-like properties without interfering with memory function or locomotion. This profile is better than that of commonly used atypical antipsychotics tested under the same conditions and suggests that it is feasible to identify drugs that improve BPSD, without exacerbating cognitive deficit or movement impairment, which are of particular concern in patients with dementia.


Assuntos
Antipsicóticos/farmacologia , Isoxazóis/farmacologia , Receptores de Serotonina/metabolismo , Antagonistas da Serotonina/farmacologia , Sulfonamidas/farmacologia , Animais , Antipsicóticos/sangue , Antipsicóticos/farmacocinética , Comportamento Animal/efeitos dos fármacos , Encéfalo/metabolismo , Células CHO , Cricetulus , Maleato de Dizocilpina/farmacologia , Células HEK293 , Humanos , Isoxazóis/sangue , Isoxazóis/farmacocinética , Ligantes , Masculino , Atividade Motora/efeitos dos fármacos , Ratos , Ratos Sprague-Dawley , Ratos Wistar , Antagonistas da Serotonina/sangue , Antagonistas da Serotonina/farmacocinética , Sulfonamidas/sangue , Sulfonamidas/farmacocinética
7.
Lupus ; 23(2): 188-93, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24297641

RESUMO

Despite precise definitions and exclusions for 19 syndromes of neuropsychiatric systemic lupus erythematosus (NPSLE), under some circumstances it appears to be difficult to differentiate whether neuropsychiatric symptoms are caused by SLE or by other reasons such as primary mental disorders or substance-induced mood disorders, especially induced by glucocorticoids or antimalarials. We report the case of a male patient with SLE who presented with an exacerbation of bipolar disorder triggered by chloroquine. Firstly, when the patient was diagnosed with SLE, he underwent six months of therapy with chloroquine without any psychiatric symptoms. Later, the SLE returned and the patient was prescribed chloroquine again, without any mental illness. When the third exacerbation of SLE occurred, it coincided with a severe depressive episode with psychotic features that became aggravated for the first time after the administration of chloroquine. The chloroquine was subsequently replaced with hydroxychloroquine for the next six months without any behavioral problems, following which, the SLE and mood disorder were in remission. Later, a bipolar disorder relapse occurred, manifested by a manic episode, and in the following three months, despite psychiatric treatment, a manic episode with psychotic features developed four days after chloroquine was prescribed for arthritis. It was the second time that the mood disorder was exacerbated by chloroquine. Since that time, chloroquine has been withdrawn. Currently the patient is undergoing treatment with hydroxychloroquine and psychiatric drugs with good response. Our case points out that although chloroquine-induced psychosis is rare, patients presenting with behavioral changes need physicians' attention in order to diagnose early and efficiently treat encountered mood disorders.


Assuntos
Transtorno Bipolar/etiologia , Cloroquina/efeitos adversos , Lúpus Eritematoso Sistêmico/complicações , Lúpus Eritematoso Sistêmico/tratamento farmacológico , Adulto , Antimaláricos/efeitos adversos , Antimaláricos/uso terapêutico , Transtorno Bipolar/induzido quimicamente , Transtorno Bipolar/tratamento farmacológico , Cloroquina/uso terapêutico , Humanos , Hidroxicloroquina/uso terapêutico , Lúpus Eritematoso Sistêmico/psicologia , Vasculite Associada ao Lúpus do Sistema Nervoso Central/complicações , Vasculite Associada ao Lúpus do Sistema Nervoso Central/tratamento farmacológico , Vasculite Associada ao Lúpus do Sistema Nervoso Central/psicologia , Masculino
8.
Int Urogynecol J ; 24(12): 2087-92, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23749240

RESUMO

INTRODUCTION AND HYPOTHESIS: The aim of the present study was to determine possible correlations between mesh retraction after anterior vaginal mesh repair and de novo stress urinary incontinence (SUI), overactive bladder (OAB), and vaginal pain symptoms. METHODS: One hundred and three women with symptomatic prolapse of the anterior vaginal wall, stages 3 and 4 based on the Pelvic Organ Prolapse Quantification (POP-Q) system, underwent Prolift anterior™ implantation. At a 6-month follow-up, the patients were interviewed for de novo SUI, OAB, and vaginal pain, and underwent an introital/transvaginal ultrasound examination to measure the mesh length in the midsagittal plane. RESULTS: Mesh retraction was significantly larger in a subgroup of patients (n = 20; 19.4 %) presenting de novo OAB symptoms on the follow-up assessment compared with those without this complication (5.0 cm vs. 4.3 cm; p < 0.05). Mesh retraction was also significantly larger in a subgroup of patients (n = 23; 22.3 %) reporting postoperative vaginal pain compared with the women who did not report any postoperative vaginal pain (5.3 cm vs. 4.2 cm; p < 0.01). A significant correlation was found between mesh retraction and the severity of vaginal pain (R = 0.4, p < 0.01). Mesh retraction did not differ between patients with de novo SUI symptoms and those without this complication. CONCLUSIONS: Mesh retraction assessed on ultrasound examination after anterior vaginal mesh repair may correlate with de novo OAB symptoms and vaginal pain.


Assuntos
Dor Pós-Operatória/etiologia , Falha de Prótese/efeitos adversos , Telas Cirúrgicas/efeitos adversos , Bexiga Urinária Hiperativa/etiologia , Incontinência Urinária por Estresse/etiologia , Prolapso Uterino/cirurgia , Vagina/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Pessoa de Meia-Idade , Polipropilenos , Slings Suburetrais/efeitos adversos
9.
Eur Addict Res ; 19(1): 55-9, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23006490

RESUMO

AIM: The aim of this study was to evaluate the role of the glutamate receptor subunit-7 (GluR7, GRIK 3) rs6691840 (Ser310Ala, T928G) in the pathogenesis of alcohol dependence (AD). METHODS: DNA was provided from AD patients (n = 209) and healthy control subjects (n = 308) all of Polish descent. The history of alcoholism was obtained using the Polish version of the SSAGA (Semi-Structured Assessment for the Genetics of Alcoholism). We conducted case-control association study and transmission disequilibrium test (TDT). GRIK3 functional polymorphism was genotyped by the PCR-RFLP method. RESULTS: Analyses revealed that polymorphism Ser310Ala of GRIK3 gene is not associated with AD or any of its subgroups. TDT reveled an adequate transmission of both alleles in the group of alcohol families. CONCLUSIONS: These findings replicate and extend our previous research results that do not support the hypothesis of the role of rs6691840 in the pathogenesis of AD.


Assuntos
Alcoolismo/genética , Família , Predisposição Genética para Doença/genética , Receptores de Ácido Caínico/genética , Adulto , Alelos , Estudos de Casos e Controles , Feminino , Estudos de Associação Genética/métodos , Estudos de Associação Genética/estatística & dados numéricos , Genótipo , Humanos , Masculino , Polimorfismo de Nucleotídeo Único/genética , Receptor de GluK3 Cainato
10.
Genes Brain Behav ; 10(5): 551-6, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21429093

RESUMO

Inhibitory effects of passive ethanol exposure on brain neurogenesis have been extensively documented in animal models. In contrast, a role of brain neurogenesis in ethanol self-administration has not been addressed, as yet. The aim of this study was to assess intake of, and preference for, ethanol solutions [2-16% (v/v)] in a mouse model of adult neurogenesis deficiency based on permanent knockout (KO) of cyclin D2 (Ccnd2). Wild type (WT) and Ccnd2 KO mice did not differ in 2% and 4% ethanol intake. The KO group consumed significantly more ethanol in g/kg when offered with 8% or 16% ethanol as compared with the WT controls. The WT and KO mice did not differ in 2% ethanol preference, but the KO group showed a significantly higher preference for 4-16% ethanol. Animal and human studies have suggested that the low level of response to the sedative/hypnotic effects of alcohol is genetically associated with enhanced alcohol consumption. However, in this study, there were no between-genotype differences in ethanol-induced loss of righting reflex. Previous reports have also suggested that high ethanol intake is genetically associated with the avidity for sweets and better acceptance of bitter solutions. However, the KO and WT mice consumed similar amounts of saccharin solutions and the KOs consumed less quinine (i.e. bitter) solutions as compared with the WTs. In conclusion, these results may indicate that Ccnd2 and, possibly, brain neurogenesis are involved in central regulation of ethanol intake in mice.


Assuntos
Consumo de Bebidas Alcoólicas/genética , Comportamento de Escolha/fisiologia , Ciclina D2/genética , Etanol/administração & dosagem , Neurogênese/genética , Animais , Ciclina D2/metabolismo , Genótipo , Camundongos , Camundongos Knockout , Autoadministração
11.
J Laryngol Otol ; 125(5): 492-6, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-21205370

RESUMO

OBJECTIVE: Apart from its role as an inhibitory neurotransmitter, γ-aminobutyric acid is also thought to regulate various stages of cell proliferation and differentiation in the brain and periphery. The present study aimed to assess the levels of γ-aminobutyric acid and its biochemical precursor glutamic acid (glutamate) in benign parotid tumours and in unstimulated parotid saliva. METHOD: Unstimulated parotid saliva was collected bilaterally, using the swab method, in 20 patients with unilateral pleomorphic adenoma or Warthin's tumour. Samples of tumour and adjacent salivary tissue were collected during tumour resection. RESULTS: Concentrations of γ-aminobutyric acid and glutamate, but not aspartate, were significantly higher in the tumour tissue than in the non-tumour tissue. There was no significant difference in salivary concentrations of γ-aminobutyric acid, glutamate or aspartate, comparing the involved and non-involved side. CONCLUSION: The present results provide preliminary evidence that γ-aminobutyric acid may be involved in the growth of benign parotid tumours.


Assuntos
Adenolinfoma/química , Adenoma Pleomorfo/química , Glândula Parótida/química , Neoplasias Parotídeas/química , Saliva/química , Ácido gama-Aminobutírico/análise , Adolescente , Adulto , Idoso , Ácido Aspártico/análise , Proliferação de Células , Cromatografia Líquida , Feminino , Ácido Glutâmico/análise , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem , Ácido gama-Aminobutírico/biossíntese , Ácido gama-Aminobutírico/fisiologia
12.
J Physiol Pharmacol ; 60(3): 119-25, 2009 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-19826190

RESUMO

Some empirical evidence suggests that the endocannabinoids (eCB) (e.g. anandamide) may play an important role in cocaine addiction. The eCB act as a retrograde messengers activating CB receptors at the presynaptic membrane and are degraded by enzymatic actions of fatty acid amide hydrolase (FAAH). The present study aimed to examine the effect of the FAAH inhibitors, phenylmethylsulphonyl fluoride (PMSF; i.p.) or cyclohexylcarbamic acid 3-carbamoyl biphenyl-3-yl ester (URB597; i.p.) on the cocaine- or food-maintained self-administration as well as on the cocaine-seeking or food-taking behaviors in rats. Male Wistar rats were implanted with a catheter (iv.) and trained to self-administer cocaine (0.5 mg/kg/infusion) on a fixed ratio 5 schedule of reinforcement with a conditioned stimulus (tone+light). After self-administration stabilized, extinction/reinstatement procedures were carried out during which the rats were tested for the response reinstatement induced by cocaine (10 mg/kg, ip) or a cue (light+tone). The food (sweetened milk) self-administration and extinction/reinstatement procedures were conducted in a manner resembling cocaine self-administration. Neither PMSF (30-120 mg/kg) nor URB597 (0.1-3 mg/kg) affected cocaine self-administration. PMSF, 60 mg/kg, significantly reduced cocaine-induced reinstatement and at 120 mg/kg (combined with the challenge dose of cocaine) it evoked behavioral disruption. PMSF (60-120 mg/kg) dose-dependently inhibited cue-induced reinstatement. URB597 (1-3 mg/kg) attenuated both cocaine- and cue-induced drug-seeking behaviors. PMSF (60 mg/kg) decreased food self-administration. Toward reinstatement of food-taking behavior PMSF (60-120 mg/kg) and URB597 (3 mg/kg) showed inhibitory effects. Our results indicate that FAAH inhibitors could be potent modulators of motivational and conditioned aspects of goal-directed behaviors with less prominent effects on consumatory behaviors.


Assuntos
Amidoidrolases/antagonistas & inibidores , Comportamento Animal/efeitos dos fármacos , Transtornos Relacionados ao Uso de Cocaína/psicologia , Cocaína/administração & dosagem , Ingestão de Alimentos/efeitos dos fármacos , Inibidores Enzimáticos/farmacologia , Reforço Psicológico , Animais , Benzamidas/administração & dosagem , Benzamidas/farmacologia , Carbamatos/administração & dosagem , Carbamatos/farmacologia , Transtornos Relacionados ao Uso de Cocaína/enzimologia , Transtornos Relacionados ao Uso de Cocaína/metabolismo , Comportamento Consumatório/efeitos dos fármacos , Relação Dose-Resposta a Droga , Inibidores Enzimáticos/administração & dosagem , Extinção Psicológica/efeitos dos fármacos , Comportamento Alimentar/efeitos dos fármacos , Injeções Intraperitoneais , Masculino , Fluoreto de Fenilmetilsulfonil/administração & dosagem , Fluoreto de Fenilmetilsulfonil/farmacologia , Ratos , Ratos Wistar , Autoadministração
13.
Nutr Neurosci ; 9(1-2): 25-31, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-16910167

RESUMO

It is universally accepted that saliva plays an important role in taste sensations. However, interactions between constituents of whole saliva and the five basic taste modalities are still poorly understood. The aim of the present study was to evaluate possible relationship between endogenous glutamate (Glu) levels in whole saliva and taste responses to a prototypic umami substance, monosodium glutamate (MSG; 0.03-10.0%). Rated intensity and pleasantness of MSG taste was studied in healthy volunteers divided into a high glutamate (HG) in saliva (HG; n = 19) and low glutamate in saliva (LG; n = 18) group based on the median split level of salivary Glu. The HG and LG group did not differ in terms of electrogustometric thresholds, rated intensity of the MSG samples and pleasantness of distilled water and the lower MSG concentrations (0.03-1.0%). Perceived intensity of water taste was significantly (P < 0.05) higher in the LG subjects. The LG group rated the higher MSG concentrations (3.0-10.0%) as more unpleasant (P < 0.01). The difference remained significant after controlling for a between-group difference in age. The present results suggest that individual differences in salivary Glu levels may alter hedonic responses to suprathreshold MSG concentrations.


Assuntos
Ácido Glutâmico/análise , Saliva/química , Glutamato de Sódio , Paladar , Adulto , Ácido Aspártico/análise , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
14.
J Neurol Neurosurg Psychiatry ; 76(1): 40-6, 2005 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-15607993

RESUMO

OBJECTIVE: Preclinical studies indicate that dopaminergic transmission in the basal ganglia may be involved in processing of both pleasant and unpleasant stimuli. Given this, the aim of the present study was to assess taste responses to sweet, bitter, sour, and salty substances in patients with Parkinson's disease (PD). METHODS: Rated intensity and pleasantness of filter paper discs soaked in sucrose (10-60%), quinine (0.025-0.5%), citric acid (0.25-4.0%), or sodium chloride (1.25-20%) solutions was evaluated in 30 patients with PD and in 33 healthy controls. Paper discs soaked in deionised water served as control stimuli. In addition, reactivity to 100 ml samples of chocolate and vanilla milk was assessed in both groups. Taste detection thresholds were assessed by means of electrogustometry. Sociodemographic and neuropsychiatric data, including cigarette smoking, alcohol consumption, tea and coffee drinking, depressive symptoms, and cognitive functioning were collected. RESULTS: In general, perceived intensity, pleasantness, and identification of the sucrose, quinine, citric acid, or sodium chloride samples did not differ between the PD patients and controls. Intensity ratings of the filter papers soaked in 0.025% quinine were significantly higher in the PD patients compared with the control group. No inter-group differences were found in taste responses to chocolate and vanilla milk. Electrogustometric thresholds were significantly (p = 0.001) more sensitive in the PD patients. CONCLUSIONS: PD is not associated with any major alterations in responses to pleasant or unpleasant taste stimuli. Patients with PD may present enhanced taste acuity in terms of electrogustometric threshold.


Assuntos
Doença de Parkinson/fisiopatologia , Paladar/fisiologia , Idoso , Animais , Cacau , Estudos de Casos e Controles , Ácido Cítrico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Quinina , Cloreto de Sódio na Dieta , Sacarose , Vanilla
15.
J Pediatr Orthop ; 24(6): 634-7, 2004.
Artigo em Inglês | MEDLINE | ID: mdl-15502561

RESUMO

There are several options for the treatment of long bone fractures in skeletally immature patients. Surgeon experience, type of fracture, and the possibility of damage to the physeal area dictate individual fracture management patterns. Notably, nail devices have not gained popularity in this patient group. Intramedullary locking nails have become the standard of care in adult patients due to decreased morbidity and mortality. A novel nail has been developed for humeral shaft fractures that uses a lateral starting position to avoid damage to the rotator cuff in humeral fracture fixation. This is possible because of the nail's transient flexibility during insertion. This study illustrates that it is feasible to insert this type of nail through multiple entry portals for both tibial and femoral fracture fixation, without damaging the physeal blood supply or growth areas.


Assuntos
Pinos Ortopédicos , Fixação Intramedular de Fraturas/métodos , Fraturas do Úmero/cirurgia , Fraturas da Tíbia/cirurgia , Adolescente , Criança , Estudos de Viabilidade , Fixação Intramedular de Fraturas/instrumentação , Humanos , Procedimentos Ortopédicos/instrumentação , Procedimentos Ortopédicos/métodos , Resultado do Tratamento
16.
Biotechnol Bioeng ; 76(4): 341-50, 2001 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-11745162

RESUMO

As measured by the toluene-induced bioluminescent response of Pseudomonas putida TVA8 in batch experiments, toluene dioxygenase (Tod) enzyme activities are dependent on toluene concentration between 0 and 30 mg/L. To provide a measure of the Tod activity for use in Michaelis-Menten competitive-inhibition kinetics, a correlation between toluene concentration and induced Tod activity as measured by an induced bioluminescent response of P. putida TVA8 is presented as a nondimensional Tod activity parameter. A packed-bed, radial-flow bioreactor (RFB) using the bioreporter P. putida TVA8A serves as the model system for studying the effect of the enzyme activity parameter on model predictions of vapor-phase toluene oxidation and trichloroethylene (TCE) cometabolism. Mass balances were performed on a differential section of the RFB to describe the radial transport of vapor-phase toluene and TCE through a bulk gas phase and the concomitant biological reaction in a stationary biofilm phase. The finite-element Galerkin weak-statement formulation with first-order basis functions was used to find the optimum solution to the highly nonlinear, coupled equations. For this RFB system with toluene concentrations less than 1 mg/L in the bulk gas phase, the Tod activity parameter enables accurate predictions of steady-state TCE degradation rate (0.27 microg TCE/min).


Assuntos
Oxigenases/química , Pseudomonas putida/enzimologia , Tricloroetileno/metabolismo , Cinética , Luminescência , Espectrometria de Massas , Modelos Estatísticos , Modelos Teóricos , Oxigenases/metabolismo , Ligação Proteica , Fatores de Tempo , Tricloroetileno/química
17.
Alcohol Alcohol ; 36(6): 516-9, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11704615

RESUMO

The aim of the present study was to compare taste responses to sweet, bitter, sour and salty solutions in male alcoholics and control subjects. The groups did not differ in terms of rated intensity or pleasantness of sucrose (1-30%), quinine (0.001-0.005%), citric acid (0.02-0.1%) and sodium chloride (0.18-0.9%) solutions. The proportion of sweet-likers was also similar in both groups.


Assuntos
Alcoolismo/complicações , Transtornos da Percepção/etiologia , Paladar , Adulto , Humanos , Masculino , Transtornos da Percepção/diagnóstico , Transtornos da Percepção/epidemiologia
18.
Alcohol Alcohol ; 36(6): 525-8, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11704617

RESUMO

The aim of the present study was to investigate the relationship between novelty-seeking behaviour and operant oral ethanol self-administration in Wistar rats. The open field and novel object test was used to assess novelty-seeking. Ethanol self-administration was initiated in an operant procedure where ethanol was introduced in the presence of sucrose. Eighteen out of 32 rats were successfully initiated to lever-press for 8% (v/v) ethanol. None of the parameters assessed in the open field (horizontal activity, rearings) or novel object test (number of contacts with an object, exploration time) differed between the initiated and non-initiated subjects. In addition, correlational analysis revealed that response to novelty did not predict individual differences in ethanol intake in the initiated rats. These results suggest that there is no relationship between novelty-seeking and operant ethanol self-administration in Wistar rats.


Assuntos
Condicionamento Operante/fisiologia , Etanol/administração & dosagem , Comportamento Exploratório/fisiologia , Prosencéfalo/patologia , Administração Oral , Animais , Comportamento Animal/fisiologia , Morte Celular , Locomoção/fisiologia , Masculino , Transtornos dos Movimentos/epidemiologia , Ratos , Ratos Wistar , Fatores de Risco , Autoadministração , Temperamento/fisiologia
20.
Eur J Pharmacol ; 413(1): 81-9, 2001 Feb 09.
Artigo em Inglês | MEDLINE | ID: mdl-11173066

RESUMO

It has been repeatedly reported that NMDA receptors may contribute to ethanol-induced discriminative stimulus effects and withdrawal syndrome. However, the role of NMDA receptors in the reinforcing properties of ethanol remains unclear. The aim of the present study was to evaluate effects of the novel low-affinity, uncompetitive NMDA receptor antagonist, 1-amino-1,3,3,5,5-pentamethyl-cyclohexane hydrochloride (MRZ 2/579), on ethanol self-administration and ethanol withdrawal-associated seizures in rats. Both an operant (lever pressing for ethanol) and non-operant two-bottle choice setups were employed to initiate ethanol self-administration. In another procedure, forced treatment with high doses (9--15 g/kg/day) was used to induce physical dependence on ethanol. MRZ 2/579 delivered chronically by osmotic minipumps (9.6 mg/day, s.c.) did not alter either operant or non-operant ethanol drinking behaviour in a maintenance phase of ethanol self-administration. In contrast, repeated daily injections of the drug (5 mg/kg, i.p.) led to a progressive decrease in operant responding for ethanol. MRZ 2/579 (0.5--7.5 mg/kg, i.p.) and another low-affinity NMDA receptor antagonist, memantine (1--10 mg/kg, i.p.) dose-dependently suppressed ethanol withdrawal seizures with efficacies comparable with that of a standard benzodiazepine derivative, diazepam. The results of the present study indicate that: (i) intermittent administration of MRZ 2/579 may lead to a gradual decrease of operant responding for ethanol; and (ii) the group of low-affinity uncompetitive NMDA receptor antagonists may be an interesting alternative to benzodiazepines in the treatment of alcohol withdrawal.


Assuntos
Consumo de Bebidas Alcoólicas/tratamento farmacológico , Convulsões por Abstinência de Álcool/tratamento farmacológico , Ciclopentanos/uso terapêutico , Receptores de N-Metil-D-Aspartato/antagonistas & inibidores , Consumo de Bebidas Alcoólicas/efeitos adversos , Animais , Condicionamento Operante/fisiologia , Ciclopentanos/administração & dosagem , Ciclopentanos/farmacocinética , Ciclopentanos/farmacologia , Diazepam/uso terapêutico , Epilepsia Reflexa/tratamento farmacológico , Etanol/administração & dosagem , Etanol/efeitos adversos , Masculino , Memantina/uso terapêutico , Ratos , Ratos Wistar , Autoadministração , Sono/fisiologia
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