RESUMO
BACKGROUND: This systematic review and meta-analysis aimed to inventory all outcome measures that are affected by tapering in chronic noncancer pain and to investigate the effectiveness of tapering. METHODS: A literature search was conducted from inception to April 2024 in MEDLINE via PubMed, Web of Science, SCOPUS, EMBASE, and PsycINFO. RESULTS: The initial database search identified 3969 articles, which were screened by two independent reviewers. Studies evaluating pain medication tapering in adults with chronic noncancer pain were eligible for inclusion. In total, 57 and 34 articles were included in the systematic review and meta-analysis, respectively. Risk of bias assessment demonstrated poor, fair, and good quality in 30, 24, and three studies, respectively. Pain intensity was the most reported outcome measure, as reported in 28 studies. Furthermore, a random-effect three-level meta-analysis was performed. An overall effect size of 0.917 (95% confidence interval 0.61-1.22; P<0.001) was found, indicating a beneficial effect of tapering. In addition, a statistically significant improvement was demonstrated after tapering for pain intensity, headache disability, the number of headache days per month, anxiety, depression, the number of pills consumed per month, the number of days with medication intake per month, pain catastrophising, and pain interference. No statistically significant effect was observed for physical functioning, mental health-related quality of life, opioid use, pain self-efficacy, and physical health-related quality of life. CONCLUSIONS: This systematic review revealed a broad range of outcome measures affected by tapering. Owing to the high risk of bias of the included articles, the results of this meta-analysis must be interpreted with caution. SYSTEMATIC REVIEW PROTOCOL: CRD42023416343 (PROSPERO).
Assuntos
Analgésicos , Dor Crônica , Humanos , Analgésicos/administração & dosagem , Analgésicos/uso terapêutico , Dor Crônica/diagnóstico , Dor Crônica/tratamento farmacológico , Redução da Medicação , Medição da Dor/métodos , Qualidade de Vida , Resultado do TratamentoRESUMO
Baclofen may reduce the symptoms of alcohol withdrawal, as an alternative or as an adjuvant for benzodiazepines, but the available data are insufficient to support baclofen-assisted alcohol withdrawal. This study investigated the need for diazepam during acute alcohol withdrawal in patients receiving baclofen. In a single-blind, dose-dependent randomized controlled trial with three study arms, 63 patients with alcohol use disorder, starting in-patient benzodiazepine-assisted alcohol detoxification, were randomly assigned to receive placebo (n = 18), baclofen 30 mg/day (N = 20), or baclofen 60 mg/day (N = 25) for 7 days. Diazepam was provided as needed based on the withdrawal symptoms stated by Clinical Institute Withdrawal Assessment for Alcohol-revised. The primary outcome measure was the number of patients in need of diazepam during alcohol detoxification. Secondary outcome measure included the between-group difference in the amount of diazepam needed during alcohol detoxification. Using baclofen 60 mg/day, 32% of patients needed additional diazepam compared to 35% on baclofen 30 mg/day and compared to 72% on placebo (P = .013). The median total amount of diazepam needed was significantly lower in patients receiving baclofen 60 mg/day (0 ± 10 mg diazepam) and baclofen 30 mg/day (0 ± 10 mg diazepam) compared to placebo (10 ± 43 mg diazepam; P = .017). Adverse events were comparable between patients on baclofen and placebo. Baclofen can reduce the withdrawal symptoms during alcohol detoxification. Baclofen was well tolerated and may be considered for the management of alcohol withdrawal syndrome, especially useful in situations where benzodiazepines should be withheld, such as patients with liver impairment.
Assuntos
Alcoolismo , Síndrome de Abstinência a Substâncias , Humanos , Alcoolismo/tratamento farmacológico , Diazepam/uso terapêutico , Diazepam/efeitos adversos , Baclofeno/efeitos adversos , Síndrome de Abstinência a Substâncias/tratamento farmacológico , Método Simples-Cego , Benzodiazepinas/uso terapêutico , Método Duplo-CegoRESUMO
OBJECTIVE: An exponential implementation of remote mental health care has been observed, but little data is available on experiences and barriers of remote health from a patient's perspective. This study investigated experiences associated with several forms of remote consultations (both telephone and online video) for mental health care during the COVID-19 coronavirus pandemic with a particular focus on patients' experiences. METHODS: This study includes results of an online web-based survey filled in by 512 patients on the use and experiences of remote mental health consultations and circulating between March and October 2021. RESULTS: Psychiatric consultations were initiated by the health care provider in 47.0% of cases, while psychological consultations were most often initiated in shared decision with the patient (54.9%). Only 28.8% of participants mentioned advantages regarding teleconsultations over face-to-face, compared to 39.3% for online video consultations. Moreover, 49.3% saw clear disadvantages for teleconsultations and 32.7% for video consultations. Positive factors associated with remote mental health care included when faced with transportation problems, followed by consultations primarily focusing on medication (for telephone consultations) or on more practical aspects (for video consultations). 25.0% of patients deemed conversations when being angry or sad to be feasible by telephone, and 33.0% considered these feasibly using video consultations. CONCLUSION: Remote consultations were deemed feasible, but the positive factors did not seem to outweigh the face-to-face contacts from a patient's perspective. Remote consultations will probably remain present in the following decades, although care must be taken when providing the possibility of remote mental health care.
Assuntos
COVID-19 , Consulta Remota , Humanos , Consulta Remota/métodos , Saúde Mental , Pacientes , Avaliação de Resultados da Assistência ao PacienteRESUMO
Recent advances in social neuroscience have highlighted the critical role of the cerebellum in social cognition, and especially the posterior cerebellum. Studies have supported the view that the posterior cerebellum builds internal action models of our social interactions to predict how other people's actions will be executed and what our most likely responses are to these actions. This mechanism allows to better anticipate action sequences during social interactions in an automatic and intuitive way and to fine-tune these anticipations, making it easier to understand other's social behaviors and mental states (e.g., beliefs, intentions, traits). In this paper, we argue that the central role of the posterior cerebellum in identifying and automatizing social action sequencing provides a fruitful starting point for investigating social dysfunctions in a variety of clinical pathologies, such as autism, obsessive-compulsive and bipolar disorder, depression, and addiction. Our key hypothesis is that dysfunctions of the posterior cerebellum lead to under- or overuse of inflexible social routines and lack of plasticity for learning new, more adaptive, social automatisms. We briefly review past research supporting this view and propose a program of research to test our hypothesis. This approach might alleviate a variety of mental problems of individuals who suffer from inflexible automatizations that stand in the way of adjustable and intuitive social behavior, by increasing posterior cerebellar plasticity using noninvasive neurostimulation or neuro-guided training programs.
Assuntos
Cerebelo , Comportamento Social , Humanos , Cerebelo/fisiologiaRESUMO
An increase of psychopathology such as post-traumatic stress disorder (PTSD) is described in patients affected with COVID-19 that stayed at an intensive care unit (ICU). However, data on follow-up and on impact of contextual factors are limited. In a single-center, observational study, PTSD symptomatology was prevalent among 38% of participants (n=8), persisting in clinical PTSD in 2 participants after one year. In patients with initial PTSD symptoms, scores on depression, anxiety and insomnia scales were significantly higher. A higher mental burden due to avoidance of contact and a reduced quality of life was also retained in patients with PTSD symptoms.
Assuntos
COVID-19 , Transtornos de Estresse Pós-Traumáticos , Humanos , Transtornos de Estresse Pós-Traumáticos/epidemiologia , Transtornos de Estresse Pós-Traumáticos/terapia , Transtornos de Estresse Pós-Traumáticos/diagnóstico , Qualidade de Vida , Cuidados Críticos , Ansiedade/epidemiologia , Unidades de Terapia Intensiva , DepressãoRESUMO
BACKGROUND AND AIMS: Alcohol-related liver disease is the most frequent cause of cirrhosis and a major indication for liver transplantation. Several alcohol use biomarkers have been developed in recent years and are already in use in several centers. However, in patients with liver disease their diagnostic performance might be influenced by altered biomarker formation by hepatic damage, altered excretion by kidney dysfunction and diuretics use, and altered deposition in hair and nails. We systematically reviewed studies on the diagnostic accuracy of biomarkers of alcohol use in patients with liver disease and performed a detailed study quality assessment. METHODS: A structured search in PubMed/Medline/Embase databases was performed for relevant studies, published until April 28, 2019. The risk of bias and applicability concerns was assessed according to the adapted quality assessment of diagnostic accuracy studies-2 (QUADAS-2) checklist. RESULTS: Twelve out of 6,449 studies met inclusion criteria. Urinary ethyl glucuronide and urinary ethyl sulfate showed high sensitivity (70 to 89 and 73 to 82%, respectively) and specificity (93 to 99 and 86 to 89%, respectively) for assessing any amount of alcohol use in the past days. Serum carbohydrate-deficient transferrin showed low sensitivity but higher specificity (40 to 79 and 57 to 99%, respectively) to detect excessive alcohol use in the past weeks. Whole blood phosphatidylethanol showed high sensitivity and specificity (73 to 100 and 90 to 96%, respectively) to detect any amount of alcohol use in the previous weeks. Scalp hair ethyl glucuronide showed high sensitivity (85 to 100%) and specificity (97 to 100%) for detecting chronic excessive alcohol use in the past 3 to 6 months. Main limitations of the current evidence are the lack of an absolute gold standard to assess alcohol use, heterogeneous study populations, and the paucity of studies. CONCLUSIONS: Urinary and scalp hair ethyl glucuronide are currently the most validated alcohol use biomarkers in patients with liver disease with good diagnostic accuracies. Phosphatidylethanol is a highly promising alcohol use biomarker, but so far less validated in liver patients. Alcohol use biomarkers can complement each other regarding diagnostic time window. More validation studies on alcohol use biomarkers in patients with liver disease are needed.
Assuntos
Consumo de Bebidas Alcoólicas/sangue , Biomarcadores/sangue , Hepatopatias/sangue , Humanos , Valor Preditivo dos Testes , Fatores de TempoRESUMO
International Consensus Statement for the Screening, Diagnosis, and Treatment of Adolescents with Concurrent Attention-Deficit/Hyperactivity Disorder and Substance Use Disorder Abstract. Background: Childhood attention-deficit/hyperactivity disorder (ADHD) is a risk factor for substance misuse and substance use disorder (SUD) in adolescence and (early) adulthood. ADHD and SUD also frequently co-occur in treatment-seeking adolescents, which complicates diagnosis and treatment and is associated with poor treatment outcomes. Research on the effect of treatment of childhood ADHD on the prevention of adolescent SUD is inconclusive, and studies on the diagnosis and treatment of adolescents with ADHD and SUD are scarce. Thus, the available evidence is generally not sufficient to justify robust treatment recommendations. Objective: The aim of the study was to obtain a consensus statement based on a combination of scientific data and clinical experience. Method: A modified Delphi study to reach consensus based upon the combination of scientific data and clinical experience with a multidisciplinary group of 55 experts from 17 countries. The experts were asked to rate a set of statements on the effect of treatment of childhood ADHD on adolescent SUD and on the screening, diagnosis, and treatment of adolescents with comorbid ADHD and SUD. Results: After 3 iterative rounds of rating and adapting 37 statements, consensus was reached on 36 of these statements representing 6 domains: general (n = 4), risk of developing SUD (n = 3), screening and diagnosis (n = 7), psychosocial treatment (n = 5), pharmacological treatment (n = 11), and complementary treatments (n = 7). Routine screening is recommended for ADHD in adolescent patients in substance abuse treatment and for SUD in adolescent patients with ADHD in mental healthcare settings. Long-acting stimulants are recommended as the first-line treatment of ADHD in adolescents with concurrent ADHD and SUD, and pharmacotherapy should preferably be embedded in psychosocial treatment. The only remaining no-consensus statement concerned the requirement of abstinence before starting pharmacological treatment in adolescents with ADHD and concurrent SUD. In contrast to the majority, some experts required full abstinence before starting any pharmacological treatment, some were against the use of stimulants in the treatment of these patients (independent of abstinence), while some were against the alternative use of bupropion. Conclusion: This international consensus statement can be used by clinicians and patients together in a shared decision-making process to select the best interventions and to reach optimal outcomes in adolescent patients with concurrent ADHD and SUD.
Assuntos
Transtorno do Deficit de Atenção com Hiperatividade , Estimulantes do Sistema Nervoso Central , Transtornos Relacionados ao Uso de Substâncias , Adolescente , Adulto , Transtorno do Deficit de Atenção com Hiperatividade/diagnóstico , Transtorno do Deficit de Atenção com Hiperatividade/epidemiologia , Transtorno do Deficit de Atenção com Hiperatividade/terapia , Estimulantes do Sistema Nervoso Central/uso terapêutico , Criança , Comorbidade , Humanos , Programas de Rastreamento , Transtornos Relacionados ao Uso de Substâncias/diagnóstico , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Transtornos Relacionados ao Uso de Substâncias/terapiaRESUMO
The importance of protein glycosylation in regulating lipid metabolism is becoming increasingly apparent. We set out to further investigate this by studying the effects of defective glycosylation on plasma lipids in patients with B4GALT1-CDG, caused by a mutation in B4GALT1 with defective N-linked glycosylation. We studied plasma lipids, cholesteryl ester transfer protein (CETP) glyco-isoforms with isoelectric focusing followed by a western blot and CETP activity in three known B4GALT1-CDG patients and compared them with 11 age- and gender-matched, healthy controls. B4GALT1-CDG patients have significantly lowered non-high density lipoprotein cholesterol (HDL-c) and total cholesterol to HDL-c ratio compared with controls and larger HDL particles. Plasma CETP was hypoglycosylated and less active in B4GALT1-CDG patients compared to matched controls. Our study provides insight into the role of protein glycosylation in human lipoprotein homeostasis. The hypogalactosylated, hypo-active CETP found in patients with B4GALT1-CDG indicates a role of protein galactosylation in regulating plasma HDL and LDL. Patients with B4GALT1-CDG have large HDL particles probably due to hypogalactosylated, hypo-active CETP.
Assuntos
Proteínas de Transferência de Ésteres de Colesterol/metabolismo , HDL-Colesterol/metabolismo , LDL-Colesterol/metabolismo , Defeitos Congênitos da Glicosilação/genética , Galactosiltransferases/genética , Adolescente , Estudos de Casos e Controles , Criança , Pré-Escolar , Proteínas de Transferência de Ésteres de Colesterol/genética , Defeitos Congênitos da Glicosilação/metabolismo , Feminino , Glicosilação , Homozigoto , Humanos , Lactente , Masculino , MutaçãoRESUMO
BACKGROUND: The outbreak of coronavirus disease 19 (COVID-19) has led to measures of social distancing and quarantine worldwide. This stressful period may lead to psychological problems, including increases in substance use. OBJECTIVE: To investigate changes in alcohol, tobacco, and cannabis consumption before and during COVID-19 lockdown and motives for these changes in substance use. METHOD: A web-based survey was filled out by an unselected population during the social distancing measures of the COVID-19 pandemic in Belgium that assessed changes in alcohol, tobacco, and cannabis consumption in the period before and during the COVID-19 lockdown and also asked about reasons for change. RESULTS: A total of 3,632 respondents (mean age 42.1 ± 14.6 years; 70% female) filled out the survey. Overall, respondents reported consuming more alcohol (d = 0.21) and smoking more cigarettes (d = 0.13) than before the COVID-19 pandemic (both p < 0.001), while no significant changes in the consumption of cannabis were noted. The odds of consuming more alcohol during the lockdown were associated with younger age (OR = 0.981, p < 0.001), more children at home (OR = 1.220, p < 0.001), non-healthcare workers (p < 0.001), and being technically unemployed related to COVID-19 (p = 0.037). The odds of smoking more cigarettes during the lockdown were associated with younger age (OR = 0.988, p = 0.027), current living situation (p < 0.001), lower education (p = 0.015), and working situation related to COVID-19 (p = 0.018). Boredom, lack of social contacts, loss of daily structure, reward after a hard-working day, loneliness, and conviviality were the main reasons for consuming more of the various substances. CONCLUSIONS: During the lockdown, individuals consumed slightly more alcohol and smoked marginally more cigarettes compared to the period before the lockdown. Further research focussing on follow-up of individuals at risk may be useful to provide appropriate care in post-COVID times.
Assuntos
Consumo de Bebidas Alcoólicas/epidemiologia , Fumar Cigarros/epidemiologia , Infecções por Coronavirus , Uso da Maconha/epidemiologia , Pandemias , Pneumonia Viral , Quarentena/psicologia , Adulto , Fatores Etários , Consumo de Bebidas Alcoólicas/psicologia , Bélgica/epidemiologia , Betacoronavirus , Tédio , COVID-19 , Fumar Cigarros/psicologia , Escolaridade , Feminino , Humanos , Solidão , Masculino , Uso da Maconha/psicologia , Pessoa de Meia-Idade , Motivação , Características de Residência , SARS-CoV-2 , Autorrelato , Fatores Sexuais , Comportamento Social , Inquéritos e Questionários , Adulto JovemRESUMO
BACKGROUND: Childhood attention-deficit/hyperactivity disorder (ADHD) is a risk factor for substance misuse and substance use disorder (SUD) in adolescence and (early) adulthood. ADHD and SUD also frequently co-occur in treatment-seeking adolescents, which complicates diagnosis and treatment and is associated with poor treatment outcomes. Research on the effect of treatment of childhood ADHD on the prevention of adolescent SUD is inconclusive, and studies on the diagnosis and treatment of adolescents with ADHD and SUD are scarce. Thus, the available evidence is generally not sufficient to justify robust treatment recommendations. OBJECTIVE: The aim of the study was to obtain a consensus statement based on a combination of scientific data and clinical experience. METHOD: A modified Delphi study to reach consensus based upon the combination of scientific data and clinical experience with a multidisciplinary group of 55 experts from 17 countries. The experts were asked to rate a set of statements on the effect of treatment of childhood ADHD on adolescent SUD and on the screening, diagnosis, and treatment of adolescents with comorbid ADHD and SUD. RESULTS: After 3 iterative rounds of rating and adapting 37 statements, consensus was reached on 36 of these statements representing 6 domains: general (n = 4), risk of developing SUD (n = 3), screening and diagnosis (n = 7), psychosocial treatment (n = 5), pharmacological treatment (n = 11), and complementary treatments (n = 7). Routine screening is recommended for ADHD in adolescent patients in substance abuse treatment and for SUD in adolescent patients with ADHD in mental healthcare settings. Long-acting stimulants are recommended as the first-line treatment of ADHD in adolescents with concurrent ADHD and SUD, and pharmacotherapy should preferably be embedded in psychosocial treatment. The only remaining no-consensus statement concerned the requirement of abstinence before starting pharmacological treatment in adolescents with ADHD and concurrent SUD. In contrast to the majority, some experts required full abstinence before starting any pharmacological treatment, some were against the use of stimulants in the treatment of these patients (independent of abstinence), while some were against the alternative use of bupropion. CONCLUSION: This international consensus statement can be used by clinicians and patients together in a shared decision-making process to select the best interventions and to reach optimal outcomes in adolescent patients with concurrent ADHD and SUD.
Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/diagnóstico , Consenso , Prática Clínica Baseada em Evidências , Programas de Rastreamento , Transtornos Relacionados ao Uso de Substâncias , Adolescente , Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Estimulantes do Sistema Nervoso Central/administração & dosagem , Técnica Delphi , Feminino , Saúde Global , Humanos , Masculino , Fatores de Risco , Transtornos Relacionados ao Uso de Substâncias/complicações , Transtornos Relacionados ao Uso de Substâncias/terapia , Resultado do TratamentoRESUMO
Among patients with substance use disorders (SUD), adult attention deficit hyperactivity disorder (ADHD) is one of the most frequently co-occuring disorder. Those SUD patients with comorbid ADHD show earlier onset of substance use, more severe SUD and poor treatment outcomes. Therefore, early recognition of ADHD is highly rele - vant within this patient population. The results of available screening instruments may lay the foundation of timely ADHD diagnosis. Considering the integrated treatment of patients with a dual ADHD+SUD diagnosis, the applica tion of combined pharmaco- and psychotherapy is recommended. Based on the evidence-and consensus-based suggestions, prescription of long-acting methylphenidate, extended-release amphetamines and atomoxetine with up-titration might be the best choice in the treatment of patients who are either unresponsive to standard dose or characterized by therapy resistance. The main purpose of this manuscript is to establish a standing-ground for the effective screening, diagnosis and treatment of ADHD+SUD patients.
Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/diagnóstico , Transtorno do Deficit de Atenção com Hiperatividade/terapia , Programas de Rastreamento , Transtornos Relacionados ao Uso de Substâncias/diagnóstico , Transtornos Relacionados ao Uso de Substâncias/terapia , Adulto , Atenção , Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Transtorno do Deficit de Atenção com Hiperatividade/epidemiologia , Comorbidade , Humanos , Psicoterapia , Transtornos Relacionados ao Uso de Substâncias/tratamento farmacológico , Transtornos Relacionados ao Uso de Substâncias/epidemiologiaRESUMO
Body mass index (BMI) is a variable that complicates the interpretation of the alcohol metabolite ethyl glucuronide (EtG) in hair. However, direction on how EtG should currently be interpreted within individuals consuming moderate and excessive daily amounts of alcohol related to their BMI is lacking. In light of interpretation of EtG in individuals with high BMI, we present post hoc analysis of earlier data regarding the effect of BMI on hair EtG concentrations.
Assuntos
Consumo de Bebidas Alcoólicas/metabolismo , Índice de Massa Corporal , Glucuronatos/análise , Cabelo/química , Humanos , Detecção do Abuso de SubstânciasRESUMO
BACKGROUND: A reformation of psychiatry was set up in Belgium with the establishment of mobile crisis teams. SUBJECTS AND METHODS: We performed a retrospective analysis of the patients referred to the mobile team "Pharos" in the period between December 2013 and December 2018. RESULTS: The number of patients is growing over the years and the most common referral reasons are suicidal thoughts and depressive mood. We have a high percentage of inclusions, maybe because the main referrers are GPs. Alcohol withdrawal at home is feasable and safe. CONCLUSION: Many psychiatric crisis situations can be managed at home with support of mobile teams, but further research is needed to provide evidence on outcome and cost effectiveness.
Assuntos
Intervenção em Crise/estatística & dados numéricos , Serviços de Emergência Psiquiátrica/provisão & distribuição , Transtornos Mentais/epidemiologia , Transtornos Mentais/terapia , Psiquiatria/métodos , Psiquiatria/organização & administração , Transtornos Relacionados ao Uso de Álcool/terapia , Bélgica/epidemiologia , Depressão/epidemiologia , Depressão/terapia , Humanos , Estudos Retrospectivos , Ideação SuicidaRESUMO
Adult attention deficit/hyperactivity disorder (ADHD) often co-occurs with substance use disorders (SUD) and is associated with early onset and more severe development of SUD and with reduced treatment effectiveness. Screening tools allow for a good recognition of possible ADHD in adults with SUD and should be used routinely, followed by an ADHD diagnostic process initiated as soon as possible. Simultaneous and integrated treatment of ADHD and SUD, using a combination of pharmaco- and psychotherapy, is recommended. Long-acting methylphenidate, extended-release amphetamines, and atomoxetine with up-titration to higher dosages may be considered in patients unresponsive to standard doses. This paper includes evidence- and consensus-based recommendations developed to provide guidance in the screening, diagnosis and treatment of patients with ADHD-SUD comorbidity.
Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/diagnóstico , Transtorno do Deficit de Atenção com Hiperatividade/terapia , Comorbidade , Consenso , Internacionalidade , Transtornos Relacionados ao Uso de Substâncias/diagnóstico , Transtornos Relacionados ao Uso de Substâncias/terapia , Adulto , Transtorno do Deficit de Atenção com Hiperatividade/epidemiologia , Estimulantes do Sistema Nervoso Central/administração & dosagem , Humanos , Programas de Rastreamento , Metilfenidato/administração & dosagem , Psicoterapia/métodos , Fatores de Risco , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Resultado do TratamentoRESUMO
AIM: Analysis of ethyl glucuronide (EtG) concentrations in hair is increasingly used to estimate the consumption of alcohol of the prior months. Linear correlations between the amount of alcohol consumed and the concentration of EtG in hair have been reported, and several variables that may influence this correlation have been investigated: e.g. cosmetic hair treatments, gender influences or hair color. Here, we investigate the influence of body mass index (BMI) on this correlation. METHODS: A post hoc analysis on the influence of BMI on the relation between amounts of alcohol consumed and the measured EtG concentrations in hair in 199 participants. RESULTS: Our data show higher EtG concentrations in participants with high BMI (≥25) compared to participants with low BMI (<25) (P = 0.001) across a wide range of amounts of alcohol consumed. CONCLUSIONS: We conclude that BMI should be taken into account when interpreting hair EtG concentrations. SHORT SUMMARY: Ethyl glucuronide concentrations in hair (hEtG) can be used to estimate the consumption of alcohol of the prior months. Body mass index (BMI) influences this relation and BMI should be taken into account when interpreting hEtG concentrations in participants with high BMI (≥25) compared to participants with low BMI (<25).
Assuntos
Abstinência de Álcool , Consumo de Bebidas Alcoólicas/metabolismo , Alcoolismo/metabolismo , Índice de Massa Corporal , Glucuronatos/análise , Cabelo/química , Adulto , Alcoolismo/diagnóstico , Biomarcadores/análise , Biomarcadores/química , Biomarcadores/metabolismo , Feminino , Glucuronatos/metabolismo , Cabelo/metabolismo , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
(18)F-FPEB is a promising PET tracer for studying the metabotropic glutamate subtype 5 receptor (mGluR5) expression in neuropsychiatric disorders. To assess the potential of (18)F-FPEB for longitudinal mGluR5 evaluation in patient studies, we evaluated the long-term test-retest reproducibility using various kinetic models in the human brain. Nine healthy volunteers underwent consecutive scans separated by a 6-month period. Dynamic PET was combined with arterial sampling and radiometabolite analysis. Total distribution volume (V(T)) and nondisplaceable binding potential (BP(ND)) were derived from a two-tissue compartment model without constraints (2TCM) and with constraining the K(1)/k(2) ratio to the value of either cerebellum (2TCM-CBL) or pons (2TCM-PONS). The effect of fitting different functions to the tracer parent fractions and reducing scan duration were assessed. Regional absolute test-retest variability (aTRV), coefficient of repeatability (CR) and intraclass correlation coefficient (ICC) were computed. The 2TCM-CBL showed best fits. The mean 6-month aTRV of V(T) ranged from 8 to 13% (CR < 25%) with ICC > 0.6 for all kinetic models. BPND from 2TCM-CBL with a sigmoid fit for the parent fractions showed the best reproducibility, with aTRV ≤ 7% (CR < 16%) and ICC > 0.9 in most regions. Reducing the scan duration from 90 to 60 min did not affect reproducibility. These results demonstrate for the first time that (18)F-FPEB brain PET has good long-term reproducibility, therefore validating its use to monitor mGluR5 expression in longitudinal clinical studies. We suggest a 2TCM-CBL with fitting a sigmoid function to the parent fractions to be optimal for this tracer.
Assuntos
Encéfalo/diagnóstico por imagem , Antagonistas de Aminoácidos Excitatórios/farmacocinética , Modelos Biológicos , Compostos Radiofarmacêuticos/farmacocinética , Receptor de Glutamato Metabotrópico 5/metabolismo , Adulto , Feminino , Humanos , Cinética , Masculino , Pessoa de Meia-Idade , Tomografia por Emissão de Pósitrons/normas , Ligação Proteica , Receptor de Glutamato Metabotrópico 5/antagonistas & inibidores , Reprodutibilidade dos TestesRESUMO
OBJECTIVES: Stimulant use is associated with increased anxiety and a single administration of dexamphetamine increases amygdala activation to biologically salient stimuli in healthy individuals. Here, we investigate how current cocaine use affects amygdala activity and amygdala connectivity with the prefrontal cortex in response to biologically salient stimuli in an emotional face matching task (EFMT). EXPERIMENTAL DESIGN: Amygdala activity and amygdala connectivity during the EFMT were assessed in 51 cocaine using males and 32 non-drug-using healthy males using functional magnetic resonance imaging (fMRI). Within the cocaine use group, we explored whether amygdala activation was associated with age of first use of cocaine and duration of cocaine use to distinguish between amygdala activation alterations as a cause or a consequence of cocaine use. PRINCIPAL OBSERVATIONS: We observed hyperactivity of the amygdala, thalamus, and hippocampus and reduced amygdala connectivity with the anterior cingulate gyrus in response to angry and fearful facial expressions in current cocaine users compared to controls. Increased amygdala activation was independently associated with earlier age of first cocaine use and with longer exposure to cocaine. CONCLUSIONS: Our findings suggest that amygdala hyperactivity to biologically salient stimuli may represent a risk factor for an early onset of cocaine use and that prolonged cocaine use may further sensitize amygdala activation. High amygdala activation to emotional face processing in current cocaine users may result from low prefrontal control of the amygdala response to such stimuli.
Assuntos
Tonsila do Cerebelo/patologia , Transtornos Relacionados ao Uso de Cocaína/patologia , Transtornos Relacionados ao Uso de Cocaína/psicologia , Vias Neurais/patologia , Córtex Pré-Frontal/patologia , Adulto , Idade de Início , Ira , Mapeamento Encefálico , Expressão Facial , Medo , Humanos , Processamento de Imagem Assistida por Computador , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Percepção Social , Transtornos Relacionados ao Uso de Substâncias/patologia , Transtornos Relacionados ao Uso de Substâncias/psicologia , Adulto JovemRESUMO
Impulsivity is a multidimensional construct, including impulsive decision-making and impulsive action, representing relatively independent neurocircuitries. ADHD is treated with methylphenidate, a drug that binds to dopamine transporters. This study in 24 adult male patients with ADHD shows that dopamine transporter occupancy by methylphenidate in the putamen correlates with improvements in cognitive but not in motor impulsivity.
Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Proteínas da Membrana Plasmática de Transporte de Dopamina/efeitos dos fármacos , Comportamento Impulsivo/efeitos dos fármacos , Metilfenidato/uso terapêutico , Adulto , Inibidores da Captação de Dopamina/uso terapêutico , Humanos , Masculino , Resultado do TratamentoRESUMO
AIMS: This review provides evidence of which interventions need to be part of effective outpatient integrated treatment for patients with comorbid schizophrenia and substance use disorders. METHODS: A total of 14 randomized controlled trials were included. Effect sizes are provided to assess the magnitude of the treatments' efficacy. RESULTS: Despite the studies' heterogeneity, we can conclude that certain programs (e.g. Behavioral Treatment for Substance Abuse in Severe and Persistent Mental Illness ) and specific interventions (e.g. motivational interviewing, family interventions) seem to be effective. Moreover, programs integrating multiple interventions are more likely to be positively related to better outcomes than single interventions. Finally, the lack of difference between effect sizes of assertive community treatment compared to case management suggests that a lower caseload is not necessary for positive treatment outcomes. CONCLUSION: Integrated treatment seems advantageous, although effect sizes are mostly modest. More homogeneous and qualitative sound studies are needed.
Assuntos
Psicoterapia , Esquizofrenia/complicações , Esquizofrenia/terapia , Transtornos Relacionados ao Uso de Substâncias/complicações , Transtornos Relacionados ao Uso de Substâncias/terapia , Terapia Combinada , Diagnóstico Duplo (Psiquiatria)/psicologia , Humanos , Pacientes Ambulatoriais/psicologiaRESUMO
OBJECTIVE: An early description, possibly the earliest, of attention deficit disorder in a 1753 Dutch medical book by Cornelius Kloekhof is presented. METHOD: The author of this text is briefly introduced and contextualized. The text is translated from Latin and afterwards, its impact on later scientific literature is discussed. RESULTS AND CONCLUSIONS: Kloekhofs description of attention deficit was one of the first and thoroughly inspired the subsequent literature, such as Adam Weikard, making this text an important moment in the rich history of ADHD.