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1.
Alcohol Alcohol ; 58(5): 565-569, 2023 Sep 09.
Artículo en Inglés | MEDLINE | ID: mdl-37526038

RESUMEN

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.


Asunto(s)
Alcoholismo , Síndrome de Abstinencia a Sustancias , Humanos , Alcoholismo/tratamiento farmacológico , Diazepam/uso terapéutico , Diazepam/efectos adversos , Baclofeno/efectos adversos , Síndrome de Abstinencia a Sustancias/tratamiento farmacológico , Método Simple Ciego , Benzodiazepinas/uso terapéutico , Método Doble Ciego
2.
J Community Health ; 48(2): 347-352, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36454479

RESUMEN

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.


Asunto(s)
COVID-19 , Consulta Remota , Humanos , Consulta Remota/métodos , Salud Mental , Pacientes , Evaluación del Resultado de la Atención al Paciente
3.
Cerebellum ; 21(6): 1123-1134, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-34637054

RESUMEN

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.


Asunto(s)
Cerebelo , Conducta Social , Humanos , Cerebelo/fisiología
4.
Psychiatr Danub ; 34(3): 602-605, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36257013

RESUMEN

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.


Asunto(s)
COVID-19 , Trastornos por Estrés Postraumático , Humanos , Trastornos por Estrés Postraumático/epidemiología , Trastornos por Estrés Postraumático/terapia , Trastornos por Estrés Postraumático/diagnóstico , Calidad de Vida , Cuidados Críticos , Ansiedad/epidemiología , Unidades de Cuidados Intensivos , Depresión
5.
Alcohol Clin Exp Res ; 45(1): 25-37, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-33190239

RESUMEN

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.


Asunto(s)
Consumo de Bebidas Alcohólicas/sangre , Biomarcadores/sangre , Hepatopatías/sangre , Humanos , Valor Predictivo de las Pruebas , Factores de Tiempo
6.
Z Kinder Jugendpsychiatr Psychother ; 50(1): 54-67, 2021 Jan.
Artículo en Alemán | MEDLINE | ID: mdl-34397296

RESUMEN

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.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad , Estimulantes del Sistema Nervioso Central , Trastornos Relacionados con Sustancias , Adolescente , Adulto , Trastorno por Déficit de Atención con Hiperactividad/diagnóstico , Trastorno por Déficit de Atención con Hiperactividad/epidemiología , Trastorno por Déficit de Atención con Hiperactividad/terapia , Estimulantes del Sistema Nervioso Central/uso terapéutico , Niño , Comorbilidad , Humanos , Tamizaje Masivo , Trastornos Relacionados con Sustancias/diagnóstico , Trastornos Relacionados con Sustancias/epidemiología , Trastornos Relacionados con Sustancias/terapia
7.
J Inherit Metab Dis ; 43(3): 611-617, 2020 05.
Artículo en Inglés | MEDLINE | ID: mdl-31800099

RESUMEN

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.


Asunto(s)
Proteínas de Transferencia de Ésteres de Colesterol/metabolismo , HDL-Colesterol/metabolismo , LDL-Colesterol/metabolismo , Trastornos Congénitos de Glicosilación/genética , Galactosiltransferasas/genética , Adolescente , Estudios de Casos y Controles , Niño , Preescolar , Proteínas de Transferencia de Ésteres de Colesterol/genética , Trastornos Congénitos de Glicosilación/metabolismo , Femenino , Glicosilación , Homocigoto , Humanos , Lactante , Masculino , Mutación
8.
Eur Addict Res ; 26(6): 309-315, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32961535

RESUMEN

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.


Asunto(s)
Consumo de Bebidas Alcohólicas/epidemiología , Fumar Cigarrillos/epidemiología , Infecciones por Coronavirus , Uso de la Marihuana/epidemiología , Pandemias , Neumonía Viral , Cuarentena/psicología , Adulto , Factores de Edad , Consumo de Bebidas Alcohólicas/psicología , Bélgica/epidemiología , Betacoronavirus , Tedio , COVID-19 , Fumar Cigarrillos/psicología , Escolaridad , Femenino , Humanos , Soledad , Masculino , Uso de la Marihuana/psicología , Persona de Mediana Edad , Motivación , Características de la Residencia , SARS-CoV-2 , Autoinforme , Factores Sexuales , Conducta Social , Encuestas y Cuestionarios , Adulto Joven
9.
Eur Addict Res ; 26(4-5): 223-232, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32634814

RESUMEN

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.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad/diagnóstico , Consenso , Práctica Clínica Basada en la Evidencia , Tamizaje Masivo , Trastornos Relacionados con Sustancias , Adolescente , Trastorno por Déficit de Atención con Hiperactividad/tratamiento farmacológico , Estimulantes del Sistema Nervioso Central/administración & dosificación , Técnica Delphi , Femenino , Salud Global , Humanos , Masculino , Factores de Riesgo , Trastornos Relacionados con Sustancias/complicaciones , Trastornos Relacionados con Sustancias/terapia , Resultado del Tratamiento
10.
Psychiatr Hung ; 35(4): 435-447, 2020.
Artículo en Húngaro | MEDLINE | ID: mdl-33263293

RESUMEN

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.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad/diagnóstico , Trastorno por Déficit de Atención con Hiperactividad/terapia , Tamizaje Masivo , Trastornos Relacionados con Sustancias/diagnóstico , Trastornos Relacionados con Sustancias/terapia , Adulto , Atención , Trastorno por Déficit de Atención con Hiperactividad/tratamiento farmacológico , Trastorno por Déficit de Atención con Hiperactividad/epidemiología , Comorbilidad , Humanos , Psicoterapia , Trastornos Relacionados con Sustancias/tratamiento farmacológico , Trastornos Relacionados con Sustancias/epidemiología
11.
Alcohol Alcohol ; 54(2): 188-189, 2019 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-30721965

RESUMEN

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.


Asunto(s)
Consumo de Bebidas Alcohólicas/metabolismo , Índice de Masa Corporal , Glucuronatos/análisis , Cabello/química , Humanos , Detección de Abuso de Sustancias
12.
Psychiatr Danub ; 31(Suppl 3): 418-420, 2019 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-31488764

RESUMEN

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.


Asunto(s)
Intervención en la Crisis (Psiquiatría)/estadística & datos numéricos , Servicios de Urgencia Psiquiátrica/provisión & distribución , Trastornos Mentales/epidemiología , Trastornos Mentales/terapia , Psiquiatría/métodos , Psiquiatría/organización & administración , Trastornos Relacionados con Alcohol/terapia , Bélgica/epidemiología , Depresión/epidemiología , Depresión/terapia , Humanos , Estudios Retrospectivos , Ideación Suicida
13.
Eur Addict Res ; 24(1): 43-51, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29510390

RESUMEN

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.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad/diagnóstico , Trastorno por Déficit de Atención con Hiperactividad/terapia , Comorbilidad , Consenso , Internacionalidad , Trastornos Relacionados con Sustancias/diagnóstico , Trastornos Relacionados con Sustancias/terapia , Adulto , Trastorno por Déficit de Atención con Hiperactividad/epidemiología , Estimulantes del Sistema Nervioso Central/administración & dosificación , Humanos , Tamizaje Masivo , Metilfenidato/administración & dosificación , Psicoterapia/métodos , Factores de Riesgo , Trastornos Relacionados con Sustancias/epidemiología , Resultado del Tratamiento
14.
Alcohol Alcohol ; 52(1): 19-23, 2017 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-27797711

RESUMEN

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).


Asunto(s)
Abstinencia de Alcohol , Consumo de Bebidas Alcohólicas/metabolismo , Alcoholismo/metabolismo , Índice de Masa Corporal , Glucuronatos/análisis , Cabello/química , Adulto , Alcoholismo/diagnóstico , Biomarcadores/análisis , Biomarcadores/química , Biomarcadores/metabolismo , Femenino , Glucuronatos/metabolismo , Cabello/metabolismo , Humanos , Masculino , Persona de Mediana Edad
15.
Synapse ; 70(4): 153-62, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26799447

RESUMEN

(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.


Asunto(s)
Encéfalo/diagnóstico por imagen , Antagonistas de Aminoácidos Excitadores/farmacocinética , Modelos Biológicos , Radiofármacos/farmacocinética , Receptor del Glutamato Metabotropico 5/metabolismo , Adulto , Femenino , Humanos , Cinética , Masculino , Persona de Mediana Edad , Tomografía de Emisión de Positrones/normas , Unión Proteica , Receptor del Glutamato Metabotropico 5/antagonistas & inhibidores , Reproducibilidad de los Resultados
16.
Hum Brain Mapp ; 36(10): 4222-30, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-26220024

RESUMEN

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.


Asunto(s)
Amígdala del Cerebelo/patología , Trastornos Relacionados con Cocaína/patología , Trastornos Relacionados con Cocaína/psicología , Vías Nerviosas/patología , Corteza Prefrontal/patología , Adulto , Edad de Inicio , Ira , Mapeo Encefálico , Expresión Facial , Miedo , Humanos , Procesamiento de Imagen Asistido por Computador , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Factores de Riesgo , Percepción Social , Trastornos Relacionados con Sustancias/patología , Trastornos Relacionados con Sustancias/psicología , Adulto Joven
17.
Br J Psychiatry ; 204(6): 486-7, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-24676965

RESUMEN

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.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad/tratamiento farmacológico , Proteínas de Transporte de Dopamina a través de la Membrana Plasmática/efectos de los fármacos , Conducta Impulsiva/efectos de los fármacos , Metilfenidato/uso terapéutico , Adulto , Inhibidores de Captación de Dopamina/uso terapéutico , Humanos , Masculino , Resultado del Tratamiento
18.
Eur Addict Res ; 20(3): 105-14, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24192558

RESUMEN

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.


Asunto(s)
Psicoterapia , Esquizofrenia/complicaciones , Esquizofrenia/terapia , Trastornos Relacionados con Sustancias/complicaciones , Trastornos Relacionados con Sustancias/terapia , Terapia Combinada , Diagnóstico Dual (Psiquiatría)/psicología , Humanos , Pacientes Ambulatorios/psicología
19.
J Atten Disord ; 28(8): 1236-1241, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38500265

RESUMEN

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.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad , Humanos , Países Bajos , Trastorno por Déficit de Atención con Hiperactividad/historia , Historia del Siglo XVIII
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