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1.
Artigo em Inglês | MEDLINE | ID: mdl-38017259

RESUMO

To research the effect of the COVID-19 pandemic on mental health, the prevalence and characteristics of all completed suicides in the city of Frankfurt am Main were compared for a 10-month period before the pandemic (March 2019-December 2019) with one during the early pandemic (March 2020-December 2020). Medicolegal data collected in the context of the FraPPE suicide prevention project were evaluated using descriptive statistical methods. In total, there were 81 suicides during the early pandemic period, as opposed to 86 in the pre-pandemic period. Though statistically not significant, the proportion of male suicides (73%) was higher during the early pandemic period than before (63%). The age-at-death was comparable in the pre-pandemic and pandemic periods (average, 54.8 vs. 53.1 years). Between these two periods, there was no difference in respect to the three most commonly used suicide methods by men: fall from a height (26% vs. 22%), intoxication, and strangulation (each 24% vs. 19%). For women, there was, however, a shift in methods from strangulation (38%), intoxication (28%), and fall from a height (19%) to fall from a height (50%), strangulation (18%), intoxication, and collision with a rail vehicle (14% each). There was a trend towards more suicides among non-German nationals during the early pandemic (suicide rate/100,000 inhabitants: German, 14.3 vs. 11.5; non-German, 4.4 vs. 8.8). Before the pandemic, 54% of the suicides were known to have a mental illness in contrast to 44% during the early pandemic. Overall, no increase in completed suicides could be observed in Frankfurt am Main during the early pandemic.

2.
Eur Arch Psychiatry Clin Neurosci ; 272(4): 679-692, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34622343

RESUMO

Substantial evidence shows that physical activity and fitness play a protective role in the development of stress related disorders. However, the beneficial effects of fitness for resilience to modern life stress are not fully understood. Potentially protective effects may be attributed to enhanced resilience via underlying psychosocial mechanisms such as self-efficacy expectations. This study investigated whether physical activity and fitness contribute to prospectively measured resilience and examined the mediating effect of general self-efficacy. 431 initially healthy adults participated in fitness assessments as part of a longitudinal-prospective study, designed to identify mechanisms of resilience. Self-efficacy and habitual activity were assessed in parallel to cardiorespiratory and muscular fitness, which were determined by a submaximal step-test, hand strength and standing long jump test. Resilience was indexed by stressor reactivity: mental health problems in relation to reported life events and daily hassles, monitored quarterly for nine months. Hierarchical linear regression models and bootstrapped mediation analyses were applied. We could show that muscular and self-perceived fitness were positively associated with stress resilience. Extending this finding, the muscular fitness-resilience relationship was partly mediated by self-efficacy expectations. In this context, self-efficacy expectations may act as one underlying psychological mechanism, with complementary benefits for the promotion of mental health. While physical activity and cardiorespiratory fitness did not predict resilience prospectively, we found muscular and self-perceived fitness to be significant prognostic parameters for stress resilience. Although there is still more need to identify specific fitness parameters in light of stress resilience, our study underscores the general relevance of fitness for stress-related disorders prevention.


Assuntos
Aptidão Física , Autoeficácia , Adulto , Estudos Transversais , Humanos , Estudos Prospectivos , Estresse Psicológico
3.
Nervenarzt ; 93(9): 921-930, 2022 Sep.
Artigo em Alemão | MEDLINE | ID: mdl-35380222

RESUMO

INTRODUCTION: For the past 20 years vagus nerve stimulation (VNS) has been an approved invasive treatment option for treatment-resistant depression (TRD) across Europe. In contrast to more common treatments, such as ECT, knowledge about VNS is low both in the general population and among professionals. METHODS: In this narrative review, we provide a clinically and scientifically sound overview of VNS. Hypotheses on the mechanism of action as well as the current evidence base on efficacy are presented. Perioperative management, adverse event profile and follow-up including dose titration are described. A comparison of international guideline recommendations on VNS is also provided. Furthermore, we formulate criteria that are helpful in the selection of appropriate patients. RESULTS: Electrical impulses are transmitted afferently via the vagus nerve and stimulate a neuromodulatory cerebral network via different pathways. Many studies and case series demonstrated the efficacy of VNS as an adjuvant procedure for TRD. The effect occurs with a latency period of 3-12 months and possibly increases with the duration of VNS. If stimulation recommendations are followed, side effects are tolerable for most patients. CONCLUSION: The use of VNS is an approved, effective and well-tolerated long-term therapy for chronic and treatment-resistant depression. Further sham-controlled studies over a longer observational period are desirable to improve the evidence.


Assuntos
Transtorno Depressivo Resistente a Tratamento , Estimulação do Nervo Vago , Depressão/terapia , Transtorno Depressivo Resistente a Tratamento/diagnóstico , Transtorno Depressivo Resistente a Tratamento/terapia , Humanos , Resultado do Tratamento , Nervo Vago/fisiologia , Estimulação do Nervo Vago/efeitos adversos , Estimulação do Nervo Vago/métodos
4.
Eur Arch Psychiatry Clin Neurosci ; 271(6): 1035-1051, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32683526

RESUMO

Resilience is the maintenance and/or quick recovery of mental health during and after periods of adversity. It is conceptualized to result from a dynamic process of successful adaptation to stressors. Up to now, a large number of resilience factors have been proposed, but the mechanisms underlying resilience are not yet understood. To shed light on the complex and time-varying processes of resilience that lead to a positive long-term outcome in the face of adversity, the Longitudinal Resilience Assessment (LORA) study has been established. In this study, 1191 healthy participants are followed up at 3- and 18-month intervals over a course of 4.5 years at two study centers in Germany. Baseline and 18-month visits entail multimodal phenotyping, including the assessment of mental health status, sociodemographic and lifestyle variables, resilience factors, life history, neuropsychological assessments (of proposed resilience mechanisms), and biomaterials (blood for genetic and epigenetic, stool for microbiome, and hair for cortisol analysis). At 3-monthly online assessments, subjects are monitored for subsequent exposure to stressors as well as mental health measures, which allows for a quantitative assessment of stressor-dependent changes in mental health as the main outcome. Descriptive analyses of mental health, number of stressors including major life events, daily hassles, perceived stress, and the ability to recover from stress are here presented for the baseline sample. The LORA study is unique in its design and will pave the way for a better understanding of resilience mechanisms in humans and for further development of interventions to successfully prevent stress-related disorder.


Assuntos
Resiliência Psicológica , Estresse Psicológico , Alemanha , Humanos , Estudos Longitudinais , Estresse Psicológico/psicologia
5.
Mol Psychiatry ; 23(2): 400-412, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-28070120

RESUMO

Major mood disorders, which primarily include bipolar disorder and major depressive disorder, are the leading cause of disability worldwide and pose a major challenge in identifying robust risk genes. Here, we present data from independent large-scale clinical data sets (including 29 557 cases and 32 056 controls) revealing brain expressed protocadherin 17 (PCDH17) as a susceptibility gene for major mood disorders. Single-nucleotide polymorphisms (SNPs) spanning the PCDH17 region are significantly associated with major mood disorders; subjects carrying the risk allele showed impaired cognitive abilities, increased vulnerable personality features, decreased amygdala volume and altered amygdala function as compared with non-carriers. The risk allele predicted higher transcriptional levels of PCDH17 mRNA in postmortem brain samples, which is consistent with increased gene expression in patients with bipolar disorder compared with healthy subjects. Further, overexpression of PCDH17 in primary cortical neurons revealed significantly decreased spine density and abnormal dendritic morphology compared with control groups, which again is consistent with the clinical observations of reduced numbers of dendritic spines in the brains of patients with major mood disorders. Given that synaptic spines are dynamic structures which regulate neuronal plasticity and have crucial roles in myriad brain functions, this study reveals a potential underlying biological mechanism of a novel risk gene for major mood disorders involved in synaptic function and related intermediate phenotypes.


Assuntos
Caderinas/genética , Transtornos do Humor/genética , Adulto , Tonsila do Cerebelo/fisiopatologia , Transtorno Bipolar/genética , Encéfalo/fisiopatologia , Caderinas/metabolismo , Cognição/fisiologia , Dendritos , Espinhas Dendríticas , Transtorno Depressivo Maior/genética , Feminino , Predisposição Genética para Doença/genética , Genótipo , Humanos , Masculino , Pessoa de Meia-Idade , Plasticidade Neuronal , Neurônios , Personalidade/genética , Polimorfismo de Nucleotídeo Único/genética , Fatores de Risco , Sinapses/genética , Sinapses/metabolismo
6.
Nitric Oxide ; 88: 45-49, 2019 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-31002875

RESUMO

INTRODUCTION: The neuronal isoform of the nitric oxide synthase (NOS-I) encoded by NOS1 is the main source of nitric oxide (NO) in the brain. Reduced NO signaling in the prefrontal cortex has been linked to schizophrenia and cognitive processes while reduced striatal NOS1 expression has been associated with impulsive behavior. METHODS: To evaluate the effect of two functional polymorphisms in alternative first exons of NOS1, ex1f-VNTR and ex1c-SNP rs41279104, on the HPA stress axis and neurocognitive abilities, 280 healthy subjects were genotyped, had their salivary cortisol levels measured and were assessed in verbal memory, verbal fluency, working memory and verbal IQ by using the California Verbal Learning Test (CVLT), the Regensburger test of verbal fluency (RWT), a n-back task and subscales of the Wechsler Adult Intelligence Scale III (WAIS-III). RESULTS: Schizophrenia risk (A)-allele carriers of NOS1 ex1c-SNP rs41279104 displayed significantly lower baseline cortisol levels (p = 0.004). NOS1 ex1f-VNTR genotype carriers showed differences in working memory performance (p = 0.05) in a gene-dose effect manner, with homozygous carriers of the short impulsivity-risk allele committing most commission errors. Finally, A-allele carriers of the NOS1 ex1c-SNP rs41279104 tended to react faster during the working memory task (p = 0.065). CONCLUSION: For the first time, we demonstrated an influence of the NOS1 ex1c-SNP rs41279104 on salivary cortisol levels and additionally implicate the A-allele in an enhanced reaction time during a working memory task. Regarding the NOS1 ex1f-VNTR our study supports the previously reported influence on impulsivity, lending further support to the hypothesis that this genetic variant underlies impulsive behavior.


Assuntos
Hidrocortisona/metabolismo , Comportamento Impulsivo/fisiologia , Memória de Curto Prazo/fisiologia , Óxido Nítrico Sintase Tipo I/genética , Polimorfismo de Nucleotídeo Único , Adulto , Feminino , Voluntários Saudáveis , Humanos , Masculino , Tempo de Reação/genética , Saliva/metabolismo
7.
Pharmacogenomics J ; 18(3): 467-473, 2018 05 22.
Artigo em Inglês | MEDLINE | ID: mdl-29205205

RESUMO

Elucidating resistance mechanisms for therapeutic monoclonal antibodies (MAbs) is challenging, because they are difficult to study in non-human models. We therefore developed a strategy to genetically map in vitro drug sensitivity, identifying genes that alter responsiveness to rituximab, a therapeutic anti-CD20 MAb that provides significant benefit to patients with B-cell malignancies. We discovered novel loci with genome-wide mapping analyses and functionally validated one of these genes, CBLB, which causes rituximab resistance when knocked down in lymphoma cells. This study demonstrates the utility of genome-wide mapping to discover novel biological mechanisms of potential clinical advantage.


Assuntos
Proteínas Adaptadoras de Transdução de Sinal/genética , Resistencia a Medicamentos Antineoplásicos/genética , Leucemia Linfocítica Crônica de Células B/tratamento farmacológico , Proteínas Proto-Oncogênicas c-cbl/genética , Rituximab/efeitos adversos , Anticorpos Monoclonais/administração & dosagem , Anticorpos Monoclonais/efeitos adversos , Anticorpos Monoclonais/genética , Antígenos CD20/efeitos dos fármacos , Antígenos CD20/imunologia , Antineoplásicos , Linhagem Celular Tumoral , Resistencia a Medicamentos Antineoplásicos/efeitos dos fármacos , Feminino , Regulação Neoplásica da Expressão Gênica/efeitos dos fármacos , Ligação Genética , Genoma Humano/genética , Humanos , Leucemia Linfocítica Crônica de Células B/complicações , Leucemia Linfocítica Crônica de Células B/genética , Masculino , Rituximab/administração & dosagem
8.
Brain Behav Immun ; 71: 133-141, 2018 07.
Artigo em Inglês | MEDLINE | ID: mdl-29627531

RESUMO

OBJECTIVE: Heart failure (HF) is a complex medical condition with a multitude of genetic and other factors being involved in the pathogenesis. Emerging evidence points to an involvement of inflammatory mechanisms at least in subgroups of patients. The same is true for depression and depressive symptoms, which have a high prevalence in HF patients and are risk factors for the development and outcomes of cardiovascular disease. METHODS: In 936 patients of the Interdisciplinary Network Heart Failure (INH) program, CRP and IL-6 protein blood levels were measured and genetic variants (single nucleotide polymorphisms) of the CRP and IL6 gene analyzed regarding their influence on mortality. RESULTS: Less common recessive genotypes of two single nucleotide polymorphisms in the CRP gene (rs1800947 and rs11265263) were associated with significantly higher mortality risk (p < 0.006), higher CRP levels (p = 0.029, p = 0.006) and increased depressive symptoms in the PHQ-9 (p = 0.005, p = 0.003). Variants in the IL-6 gene were not associated with mortality. CONCLUSION: Our results hint towards an association of less common CRP genetic variants with increased mortality risk, depressive symptoms and peripheral CRP levels in this population of HF patients thereby suggesting a possible role of the inflammatory system as link between poor prognosis in HF and depressive symptoms.


Assuntos
Proteína C-Reativa/genética , Transtorno Depressivo/genética , Insuficiência Cardíaca/genética , Idoso , Proteína C-Reativa/metabolismo , Proteína C-Reativa/fisiologia , Doença Crônica , Depressão/sangue , Depressão/genética , Depressão/fisiopatologia , Transtorno Depressivo/sangue , Transtorno Depressivo/fisiopatologia , Feminino , Predisposição Genética para Doença/genética , Variação Genética/genética , Genótipo , Insuficiência Cardíaca/mortalidade , Insuficiência Cardíaca/psicologia , Humanos , Interleucina-6/sangue , Interleucina-6/genética , Interleucina-6/fisiologia , Masculino , Pessoa de Meia-Idade , Polimorfismo de Nucleotídeo Único/genética , Fatores de Risco
9.
Mol Psychiatry ; 22(10): 1431-1439, 2017 10.
Artigo em Inglês | MEDLINE | ID: mdl-28167838

RESUMO

The molecular genetics of panic disorder (PD) with and without agoraphobia (AG) are still largely unknown and progress is hampered by small sample sizes. We therefore performed a genome-wide association study with a dimensional, PD/AG-related anxiety phenotype based on the Agoraphobia Cognition Questionnaire (ACQ) in a sample of 1370 healthy German volunteers of the CRC TRR58 MEGA study wave 1. A genome-wide significant association was found between ACQ and single non-coding nucleotide variants of the GLRB gene (rs78726293, P=3.3 × 10-8; rs191260602, P=3.9 × 10-8). We followed up on this finding in a larger dimensional ACQ sample (N=2547) and in independent samples with a dichotomous AG phenotype based on the Symptoms Checklist (SCL-90; N=3845) and a case-control sample with the categorical phenotype PD/AG (Ncombined =1012) obtaining highly significant P-values also for GLRB single-nucleotide variants rs17035816 (P=3.8 × 10-4) and rs7688285 (P=7.6 × 10-5). GLRB gene expression was found to be modulated by rs7688285 in brain tissue, as well as cell culture. Analyses of intermediate PD/AG phenotypes demonstrated increased startle reflex and increased fear network, as well as general sensory activation by GLRB risk gene variants rs78726293, rs191260602, rs17035816 and rs7688285. Partial Glrb knockout mice demonstrated an agoraphobic phenotype. In conjunction with the clinical observation that rare coding GLRB gene mutations are associated with the neurological disorder hyperekplexia characterized by a generalized startle reaction and agoraphobic behavior, our data provide evidence that non-coding, although functional GLRB gene polymorphisms may predispose to PD by increasing startle response and agoraphobic cognitions.


Assuntos
Agorafobia/genética , Agorafobia/metabolismo , Receptores de Glicina/genética , Adulto , Alelos , Ansiedade/complicações , Transtornos de Ansiedade/genética , Encéfalo/metabolismo , Encéfalo/fisiologia , Estudos de Casos e Controles , Cognição/fisiologia , Medo/fisiologia , Medo/psicologia , Feminino , Frequência do Gene/genética , Predisposição Genética para Doença/genética , Estudo de Associação Genômica Ampla , Genótipo , Alemanha , Humanos , Masculino , Mutação/genética , Transtorno de Pânico/genética , Receptores de Glicina/metabolismo , Reflexo de Sobressalto/genética
10.
Nervenarzt ; 89(7): 759-765, 2018 Jul.
Artigo em Alemão | MEDLINE | ID: mdl-29876599

RESUMO

BACKGROUND: According to current research concepts resilience can be defined as adaptation to past and ongoing exposure. Accordingly, adaptation to exposure is a dynamic process, which can be different in different population groups. Prospective longitudinal studies provide unique opportunities to investigate resilience processes. OBJECTIVES: The aim of this article is to define the concept of resilience, describe examples of longitudinal studies investigating resilience in children, adults and older individuals, exemplary describe four ongoing longitudinal resilience studies in which the authors of the article are participating and identify and analyze methodological challenges in empirical resilience research. MATERIAL AND METHODS: This study was based on a qualitative literature review of published prospective studies investigating resilience listed in PubMed and study protocols of the four longitudinal studies. RESULTS: The exemplarily described studies have shown that resilience processes are changeable in all age groups and subject to a variety of influencing factors. The specific and potentially age-associated types of alterations have so far been difficult to determine and need further clarification. DISCUSSION: In view of the dynamic course of resilience, prospective longitudinal studies are urgently needed. Prospective longitudinal studies have the potential to identify resilience mechanisms and predictors of the course of resilience in different population groups, such as children, adolescents, adults and older individuals. Furthermore, resilience research needs to develop an improved and precise assessment of exposure to stressors.


Assuntos
Resiliência Psicológica , Humanos , Estudos Longitudinais , Estudos Prospectivos , Pesquisa
11.
Mol Psychiatry ; 21(5): 665-79, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-26390831

RESUMO

The utilization of molecular genetics approaches in examination of panic disorder (PD) has implicated several variants as potential susceptibility factors for panicogenesis. However, the identification of robust PD susceptibility genes has been complicated by phenotypic diversity, underpowered association studies and ancestry-specific effects. In the present study, we performed a succinct review of case-control association studies published prior to April 2015. Meta-analyses were performed for candidate gene variants examined in at least three studies using the Cochrane Mantel-Haenszel fixed-effect model. Secondary analyses were also performed to assess the influences of sex, agoraphobia co-morbidity and ancestry-specific effects on panicogenesis. Meta-analyses were performed on 23 variants in 20 PD candidate genes. Significant associations after correction for multiple testing were observed for three variants, TMEM132D rs7370927 (T allele: odds ratio (OR)=1.27, 95% confidence interval (CI): 1.15-1.40, P=2.49 × 10(-6)), rs11060369 (CC genotype: OR=0.65, 95% CI: 0.53-0.79, P=1.81 × 10(-5)) and COMT rs4680 (Val (G) allele: OR=1.27, 95% CI: 1.14-1.42, P=2.49 × 10(-5)) in studies with samples of European ancestry. Nominal associations that did not survive correction for multiple testing were observed for NPSR1 rs324891 (T allele: OR=1.22, 95% CI: 1.07-1.38, P=0.002), TPH1 rs1800532 (AA genotype: OR=1.46, 95% CI: 1.14-1.89, P=0.003) and HTR2A rs6313 (T allele: OR=1.19, 95% CI: 1.07-1.33, P=0.002) in studies with samples of European ancestry and for MAOA-uVNTR in female PD (low-active alleles: OR=1.21, 95% CI: 1.07-1.38, P=0.004). No significant associations were observed in the secondary analyses considering sex, agoraphobia co-morbidity and studies with samples of Asian ancestry. Although these findings highlight a few associations, PD likely involves genetic variation in a multitude of biological pathways that is diverse among populations. Future studies must incorporate larger sample sizes and genome-wide approaches to further quantify the observed genetic variation among populations and subphenotypes of PD.


Assuntos
Predisposição Genética para Doença , Transtorno de Pânico/genética , Polimorfismo Genético , Ansiedade/genética , Humanos
12.
Mol Psychiatry ; 21(6): 813-22, 2016 06.
Artigo em Inglês | MEDLINE | ID: mdl-26324098

RESUMO

Corticotropin-releasing hormone (CRH) is a major regulator of the hypothalamic-pituitary-adrenal axis. Binding to its receptor CRHR1 triggers the downstream release of the stress response-regulating hormone cortisol. Biochemical, behavioral and genetic studies revealed CRHR1 as a possible candidate gene for mood and anxiety disorders. Here we aimed to evaluate CRHR1 as a risk factor for panic disorder (PD). Allelic variation of CRHR1 was captured by 9 single-nucleotide polymorphisms (SNPs), which were genotyped in 531 matched case/control pairs. Four SNPs were found to be associated with PD, in at least one sub-sample. The minor allele of rs17689918 was found to significantly increase risk for PD in females after Bonferroni correction and furthermore decreased CRHR1 mRNA expression in human forebrains and amygdalae. When investigating neural correlates underlying this association in patients with PD using functional magnetic resonance imaging, risk allele carriers of rs17689918 showed aberrant differential conditioning predominantly in the bilateral prefrontal cortex and safety signal processing in the amygdalae, arguing for predominant generalization of fear and hence anxious apprehension. Additionally, the risk allele of rs17689918 led to less flight behavior during fear-provoking situations but rather increased anxious apprehension and went along with increased anxiety sensitivity. Thus reduced gene expression driven by CRHR1 risk allele leads to a phenotype characterized by fear sensitization and hence sustained fear. These results strengthen the role of CRHR1 in PD and clarify the mechanisms by which genetic variation in CRHR1 is linked to this disorder.


Assuntos
Transtorno de Pânico/genética , Receptores de Hormônio Liberador da Corticotropina/genética , Adulto , Alelos , Ansiedade/genética , Transtornos de Ansiedade/genética , Viés , Hormônio Liberador da Corticotropina/metabolismo , Medo , Feminino , Predisposição Genética para Doença/genética , Variação Genética/genética , Genótipo , Humanos , Hidrocortisona/metabolismo , Sistema Hipotálamo-Hipofisário/metabolismo , Masculino , Pessoa de Meia-Idade , Fenótipo , Sistema Hipófise-Suprarrenal/metabolismo , Polimorfismo de Nucleotídeo Único , Fatores de Risco
13.
Nervenarzt ; 88(3): 222-233, 2017 Mar.
Artigo em Alemão | MEDLINE | ID: mdl-27220643

RESUMO

In this article the guideline-adherent psychiatric psychotherapeutic treatment of patients with bipolar disorders is outlined and the required resources are estimated. Based on the core recommendations of the S3 guidelines for diagnostics and treatment of bipolar disorders published in 2012, inpatient treatment needs in hours per week and per patient are determined for both manic and bipolar depressive episodes. The resulting staffing requirements are estimated on this basis. In summary, for guideline-adherent inpatient psychiatric psychotherapeutic treatment the additional needs regarding the physician/psychotherapeutic domain add up to 44 min per patient and week during a manic episode and 88 min for patients with bipolar depression when compared to current psychiatry staffing regulations.


Assuntos
Transtorno Bipolar/terapia , Hospitalização/estatística & dados numéricos , Admissão e Escalonamento de Pessoal/estatística & dados numéricos , Guias de Prática Clínica como Assunto , Psicoterapia/normas , Carga de Trabalho/estatística & dados numéricos , Transtorno Bipolar/diagnóstico , Transtorno Bipolar/epidemiologia , Alemanha/epidemiologia , Fidelidade a Diretrizes/normas , Fidelidade a Diretrizes/estatística & dados numéricos , Humanos , Pacientes Internados/estatística & dados numéricos , Avaliação das Necessidades , Admissão e Escalonamento de Pessoal/normas , Psiquiatria/normas , Psiquiatria/estatística & dados numéricos , Carga de Trabalho/normas
14.
Pharmacogenomics J ; 16(3): 243-8, 2016 06.
Artigo em Inglês | MEDLINE | ID: mdl-26194361

RESUMO

Carboplatin/taxane combination is first-line therapy for ovarian cancer. However, patients can encounter treatment delays, impaired quality of life, even death because of chemotherapy-induced gastrointestinal (GI) toxicity. A candidate gene study was conducted to assess potential association of genetic variants with GI toxicity in 808 patients who received carboplatin/taxane in the Scottish Randomized Trial in Ovarian Cancer 1 (SCOTROC1). Patients were randomized into discovery and validation cohorts consisting of 404 patients each. Clinical covariates and genetic variants associated with grade III/IV GI toxicity in discovery cohort were evaluated in replication cohort. Chemotherapy-induced GI toxicity was significantly associated with seven single-nucleotide polymorphisms in the ATP7B, GSR, VEGFA and SCN10A genes. Patients with risk genotypes were at 1.53 to 18.01 higher odds to develop carboplatin/taxane-induced GI toxicity (P<0.01). Variants in the VEGF gene were marginally associated with survival time. Our data provide potential targets for modulation/inhibition of GI toxicity in ovarian cancer patients.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Carboplatina/efeitos adversos , Gastroenteropatias/induzido quimicamente , Gastroenteropatias/genética , Neoplasias Ovarianas/tratamento farmacológico , Farmacogenética , Variantes Farmacogenômicos/genética , Polimorfismo de Nucleotídeo Único , Taxoides/efeitos adversos , Adenosina Trifosfatases/genética , Proteínas de Transporte de Cátions/genética , ATPases Transportadoras de Cobre , Docetaxel , Feminino , Gastroenteropatias/diagnóstico , Estudos de Associação Genética , Predisposição Genética para Doença , Humanos , Estimativa de Kaplan-Meier , Canal de Sódio Disparado por Voltagem NAV1.8/genética , Neoplasias Ovarianas/mortalidade , Fenótipo , Modelos de Riscos Proporcionais , Fatores de Risco , Escócia , Índice de Gravidade de Doença , Fatores de Tempo , Resultado do Tratamento , Fator A de Crescimento do Endotélio Vascular/genética
15.
J Neural Transm (Vienna) ; 123(8): 1001-11, 2016 08.
Artigo em Inglês | MEDLINE | ID: mdl-27273092

RESUMO

Previous studies have demonstrated impairments in attention, memory and executive functions in euthymic bipolar patients (BP) as well as their unaffected first-degree relatives, albeit in an attenuated form. Subsequently, cognitive deficits are discussed as a possible endophenotype of bipolar disorder. However, recent studies showed that only a subgroup of BP shows cognitive impairments. The aim of the present study was to investigate cognitive functioning in relatives compared to BP, to find out if the differentiation in a cognitive deficit vs. non-deficit subgroup is valid for relatives of BP, too. Therefore, the performance of 27 unaffected relatives of BP, 27 euthymic BP and 27 HC were compared using a neuropsychological test battery. The results showed that BP exhibited a reduced psychomotor speed and deficits in working memory compared to relatives and HC. Relatives performed significantly slower (psychomotor speed) as compared to HC (p = 0.024); performance in the other test measures lie between BP and HC. Furthermore, a detailed evaluation of the data indicated that only subgroups of BP and relatives exhibited cognitive impairments in the implemented tests. However, the deficit and non-deficit groups did not differ in sociodemographic and clinical variables from each other, possibly due to the small sample size. In conclusion, our results suggest that reduced psychomotor speed could serve as a potential endophenotype for bipolar disorder which should be investigated along the developmental trajectory of this disorder, also to examine whether abnormalities therein precede onset of the first mood episode. Furthermore, the division of relatives into subgroups aids in the identification of stable trait markers and high-risk bipolar groups and could enable early prevention strategies. As to that more research using distinct and homogeneous subgroups is necessary.


Assuntos
Transtorno Bipolar/complicações , Transtornos Cognitivos/etiologia , Transtornos Cognitivos/genética , Família/psicologia , Adulto , Análise de Variância , Atenção , Transtorno Bipolar/psicologia , Endofenótipos , Feminino , Humanos , Masculino , Memória de Curto Prazo/fisiologia , Pessoa de Meia-Idade , Testes Neuropsicológicos , Escalas de Graduação Psiquiátrica , Psicometria , Aprendizagem Verbal/fisiologia , Adulto Jovem
16.
Chromosome Res ; 23(2): 311-31, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25783786

RESUMO

Urothelial carcinoma (UC), also referred to as transitional cell carcinoma (TCC), is the most common bladder malignancy in both human and canine populations. In human UC, numerous studies have demonstrated the prevalence of chromosomal imbalances. Although the histopathology of the disease is similar in both species, studies evaluating the genomic profile of canine UC are lacking, limiting the discovery of key comparative molecular markers associated with driving UC pathogenesis. In the present study, we evaluated 31 primary canine UC biopsies by oligonucleotide array comparative genomic hybridization (oaCGH). Results highlighted the presence of three highly recurrent numerical aberrations: gain of dog chromosome (CFA) 13 and 36 and loss of CFA 19. Regional gains of CFA 13 and 36 were present in 97 % and 84 % of cases, respectively, and losses on CFA 19 were present in 77 % of cases. Fluorescence in situ hybridization (FISH), using targeted bacterial artificial chromosome (BAC) clones and custom Agilent SureFISH probes, was performed to detect and quantify these regions in paraffin-embedded biopsy sections and urine-derived urothelial cells. The data indicate that these three aberrations are potentially diagnostic of UC. Comparison of our canine oaCGH data with that of 285 human cases identified a series of shared copy number aberrations. Using an informatics approach to interrogate the frequency of copy number aberrations across both species, we identified those that had the highest joint probability of association with UC. The most significant joint region contained the gene PABPC1, which should be considered further for its role in UC progression. In addition, cross-species filtering of genome-wide copy number data highlighted several genes as high-profile candidates for further analysis, including CDKN2A, S100A8/9, and LRP1B. We propose that these common aberrations are indicative of an evolutionarily conserved mechanism of pathogenesis and harbor genes key to urothelial neoplasia, warranting investigation for diagnostic, prognostic, and therapeutic applications.


Assuntos
Carcinoma/veterinária , Aberrações Cromossômicas , Hibridização Genômica Comparativa , Neoplasias Urológicas/veterinária , Animais , Biópsia , Biologia Computacional/métodos , Variações do Número de Cópias de DNA , Cães , Feminino , Loci Gênicos , Genômica/métodos , Humanos , Hibridização in Situ Fluorescente , Masculino
17.
Eur Arch Psychiatry Clin Neurosci ; 266(3): 225-37, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26611783

RESUMO

Considerable evidence demonstrates that neuropsychological deficits are prevalent in bipolar disorder during both acute episodes and euthymia. However, it is less clear whether these cognitive disturbances are state- or trait-related. We here present the first longitudinal study employing a within-subject pre- and post-testing examining acutely admitted bipolar patients (BP) in depression or mania and during euthymia, aiming to identify cognitive performance from acute illness to remission. Cognitive performance was measured during acute episodes and repeated after at least 3 months of remission. To do so, 55 BP (35 depressed, 20 hypo-/manic) and 55 healthy controls (HC) were tested with a neuropsychological test battery (attention, working memory, verbal memory, executive functioning). The results showed global impairments in acutely ill BP compared to HC: depressed patients showed a characteristic psychomotor slowing, while manic patients had severe deficits in executive functioning. Twenty-nine remitted BP could be measured in the follow-up (dropout rate 48 %), whose cognitive functions partially recovered, whereas working memory and verbal memory were still impaired. However, we found that subthreshold depressive symptoms and persisting sleep disturbances in euthymic BP were associated with reduced speed, deficits in attention and verbal memory, while working memory was correlated with psychotic symptoms (lifetime). This result indicates working memory as trait related for a subgroup of BP with psychotic symptoms. In contrast, attention and verbal memory are negatively influenced by state factors like residual symptoms, which should be more considered as possible confounders in the search of cognitive endophenotypes in remitted BP.


Assuntos
Transtorno Bipolar/psicologia , Transtornos Cognitivos/complicações , Adulto , Estudos de Casos e Controles , Função Executiva , Feminino , Humanos , Estudos Longitudinais , Masculino , Memória de Longo Prazo , Memória de Curto Prazo , Testes Neuropsicológicos , Desempenho Psicomotor
18.
Pharmacopsychiatry ; 49(4): 146-54, 2016 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26926233

RESUMO

INTRODUCTION: Methylphenidate (MPH) is widely used to treat childhood and adult attention-deficit/hyperactivity disorder (ADHD). However, there are still safety concerns about side effects in long-term treatment. The aim of this study was to assess cytogenetic effects of chronic MPH treatment in adult ADHD and to find out if chronic social stress is attenuated by medication and to investigate whether chronic psychosocial stress leads to mutagenic effects by itself. METHODS: Lymphocytes for micronucleus assay and saliva samples for cortisol measurement were collected from adult ADHD patients and healthy controls. Stress exposure of the last 3 months was assessed by TICS (Trier Inventory for Chronic Stress). RESULTS: We could not detect an influence of MPH treatment on cytogenetic markers. ADHD patients displayed significantly higher chronic stress levels measured by TICS compared to healthy controls which were influenced by duration of MPH treatment. ADHD patients also showed significantly lower basal cortisol levels. DISCUSSION: We could corroborate that there are neither cytogenetic effects of chronic stress nor of chronic MPH intake even after several years of treatment.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Transtorno do Deficit de Atenção com Hiperatividade/patologia , Estimulantes do Sistema Nervoso Central/uso terapêutico , Linfócitos/efeitos dos fármacos , Metilfenidato/uso terapêutico , Adolescente , Adulto , Transtorno do Deficit de Atenção com Hiperatividade/complicações , Células Cultivadas , Feminino , Humanos , Hidrocortisona/metabolismo , Masculino , Saliva/metabolismo , Estatísticas não Paramétricas , Estresse Psicológico/sangue , Estresse Psicológico/tratamento farmacológico , Estresse Psicológico/etiologia , Adulto Jovem
19.
Nervenarzt ; 87(9): 967-73, 2016 Sep.
Artigo em Alemão | MEDLINE | ID: mdl-27448177

RESUMO

The majority of women suffering from psychiatric disorders in pregnancy and the breast feeding prefer psychotherapy and other nonpharmacological treatment over psychopharmacological treatment although the risk of malformations and postnatal complications in children exposed to psychopharmacological drugs must be regarded as acceptable in moderate to severely ill patients. Data are lacking, but several psychotherapeutic and biological treatments as well as noninvasive brain stimulation procedures have been investigated to treat depressive episodes and anxiety disorders in pregnancy and the breast feeding. In mild to moderate depressive episodes different psychotherapy treatments and counseling are significantly more effective in reducing depressive symptoms than no treatment.The same seems to be true for anxiety disorders; however, studies on this are sparse. Treatment by telephone and internet also seems to improve symptoms, which is of interest especially in the less flexible group of breast feeding women and for the development of future health care structures. Noninvasive stimulation treatment has been shown to be an effective nonpharmacological therapeutic option. Data for other recent noninvasive brain stimulation treatments and biological treatments as well as exercise therapy are sparse. In severe and delusional cases as well as treatment-resistant depressive episodes, electroconvulsive therapy should be considered in pregnant women. Because several patients prefer nonpharmacological therapy during this period, those should be applied if available and feasible. Regarding nonpharmacological treatment of obsessive-compulsive disorder, bipolar disorder and schizophrenia during pregnancy and the breast feeding, no recommendation can currently be given.


Assuntos
Eletrochoque/métodos , Cuidado Pós-Natal/métodos , Complicações na Gravidez/terapia , Psicoterapia/métodos , Estimulação Transcraniana por Corrente Contínua/métodos , Terapia Combinada/métodos , Medicina Baseada em Evidências , Feminino , Alemanha , Humanos , Transtornos Mentais/prevenção & controle , Transtornos Mentais/psicologia , Transtornos Mentais/terapia , Gravidez , Complicações na Gravidez/prevenção & controle , Complicações na Gravidez/psicologia , Psicotrópicos/uso terapêutico , Resultado do Tratamento
20.
Mol Psychiatry ; 19(1): 122-8, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23319006

RESUMO

Panic disorder with agoraphobia (PD/AG) is a prevalent mental disorder featuring a substantial complex genetic component. At present, only a few established risk genes exist. Among these, the gene encoding monoamine oxidase A (MAOA) is noteworthy given that genetic variation has been demonstrated to influence gene expression and monoamine levels. Long alleles of the MAOA-uVNTR promoter polymorphism are associated with PD/AG and correspond with increased enzyme activity. Here, we have thus investigated the impact of MAOA-uVNTR on therapy response, behavioral avoidance and brain activity in fear conditioning in a large controlled and randomized multicenter study on cognitive behavioral therapy (CBT) in PD/AG. The study consisted of 369 PD/AG patients, and genetic information was available for 283 patients. Carriers of the risk allele had significantly worse outcome as measured by the Hamilton Anxiety scale (46% responders vs 67%, P=0.017). This was accompanied by elevated heart rate and increased fear during an anxiety-provoking situation, that is, the behavioral avoidance task. All but one panic attack that happened during this task occurred in risk allele carriers and, furthermore, risk allele carriers did not habituate to the situation during repetitive exposure. Finally, functional neuroimaging during a classical fear conditioning paradigm evidenced that the protective allele is associated with increased activation of the anterior cingulate cortex upon presentation of the CS+ during acquisition of fear. Further differentiation between high- and low-risk subjects after treatment was observed in the inferior parietal lobes, suggesting differential brain activation patterns upon CBT. Taken together, we established that a genetic risk factor for PD/AG is associated with worse response to CBT and identify potential underlying neural mechanisms. These findings might govern how psychotherapy can include genetic information to tailor individualized treatment approaches.


Assuntos
Terapia Cognitivo-Comportamental/métodos , Repetições Minissatélites/genética , Monoaminoxidase/genética , Transtorno de Pânico/genética , Transtorno de Pânico/reabilitação , Agorafobia/complicações , Agorafobia/reabilitação , Encéfalo/irrigação sanguínea , Encéfalo/patologia , Condicionamento Clássico/fisiologia , Eletrocardiografia , Feminino , Seguimentos , Frequência do Gene , Genótipo , Humanos , Processamento de Imagem Assistida por Computador , Imageamento por Ressonância Magnética , Masculino , Oxigênio/sangue , Transtorno de Pânico/complicações , Transtorno de Pânico/patologia , Escalas de Graduação Psiquiátrica
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