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1.
Am J Obstet Gynecol MFM ; 2(2): 100086, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-33345957

RESUMO

BACKGROUND: After careful review of the ARRIVE trial (A Randomized Trial of Induction Versus Expectant Management) data, induction of labor prior to one's due date in the absence of maternal and fetal indications (which the American College of Obstetricians and Gynecologists currently refers to as "elective") is now endorsed as a "reasonable" option by the American College of Obstetricians and Gynecologists (ACOG). As a result, there has been much discussion among providers regarding how best to operationalize this ACOG recommendation into shared decision making regarding delivery planning. However, we lack a formal understanding of the perspectives of patients themselves on this topic. OBJECTIVE: To assess patient understanding and preference for induction of labor prior to one's due date. MATERIALS AND METHODS: We conducted an anonymous, cross-sectional survey of women in their third trimester of pregnancy presenting for routine obstetric care in August 2018. The survey included a series of questions designed to assess basic demographics, obstetric history, and patient understanding and opinions about the practice of induction of labor, with a focus on induction of labor prior to one's due date in the absence of maternal and fetal indications. RESULTS: A total of 108 women were approached for participation, and 100 women participated in this survey (93% participation). Of the participants, 99% were supportive of induction of labor for fetal indications, and 96% were supportive for maternal indications prior to one's due date. In contrast, 54% of participants were not interested in induction of labor in the absence of maternal and fetal indications prior to one's due date. Women opposed to induction of labor in the absence of maternal and fetal indications were almost 4 times more likely to be concerned about the possibility that induction of labor in the absence of maternal and fetal indications could cause fetal harm (odds ratio, 3.9; confidence interval, 1.2-13.2). CONCLUSION: Nearly all women surveyed in our pilot study were interested in induction of labor prior to one's due date for maternal or fetal indications. 46% of those surveyed were interested in induction of labor in the absence of maternal and fetal indications prior to their due date. Concern about potential fetal harm was more likely among women opposed to induction of labor in the absence of maternal and fetal indications. As providers discuss delivery planning with their patients, these results may provide a useful context for operationalizing and individualizing the results of the ARRIVE trial for their patients.


Assuntos
Trabalho de Parto , Estudos Transversais , Feminino , Feto , Humanos , Trabalho de Parto Induzido , Projetos Piloto , Gravidez
2.
J Matern Fetal Neonatal Med ; 33(14): 2415-2421, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-30482067

RESUMO

Background: Infants that are small for gestational age (SGA) at birth are at increased risk for morbidity and mortality. Unfortunately, the antenatal prediction of SGA is suboptimal.Objectives: We sought to: (1) examine the association between second trimester fetal abdominal circumference < 10% (2T-AClag) with SGA and other gestational and neonatal adverse outcomes; (2) assess 2T-AClag as a predictor of SGA.Study design: Retrospective study of 212 singleton gestations with 2T-AClag on routine ultrasound between 18-24 weeks. The study group was compared to 424 gestations without 2T-AClag for maternal characteristics as well as pregnancy and neonatal adverse outcomes. A multivariate logistic regression was used to determine the predictive value of 2T-AClag for SGA, adjusting for maternal and pregnancy characteristics. The screening model accuracy was assessed through receiver operating characteristic (ROC) curves. Fetal growth restriction (FGR) was defined as an estimated fetal weight (EFW) less than the 10th percentile.Results: Gestations with 2T-AClag had higher rates of SGA (35.7 versus 11.6%, p < .0001), FGR (17 versus 1.7%, p < .0001), pregnancy induced hypertension (31.1 versus 17%, p < .0001), preeclampsia (14.6 versus 7.8%, 0 = 0.01), abnormal umbilical artery Doppler (30 versus 5.1%, p < .0001), indicated preterm birth (5.7 versus 1.9%, p = .01), primary cesarean birth (29.6 versus 20.1%, p = .01) and NICU admission (12.9 versus 6.4%, p = .009). After adjusting for maternal and gestational risk factors, 2T-AClag remained an independent risk factor for SGA (OR 4.53, 95%CI 2.91-7.05, p < .0001) and FGR (OR 11.57, 95%CI 5.02-26.65, p < .0001). The inclusion of 2T-AClag in a regression model with traditional risk factors, significantly improved the model's predictability for SGA and FGR (area under ROC curve increased from 0.618 to 0.723 and 0.653 to 0.819, respectively, p < .0001).Conclusions: Second trimester abdominal circumference (AC) lag is associated with an increased risk of SGA, FGR and other adverse outcomes. The inclusion of 2T-AClag in a screening model for prediction of SGA and FGR may improve the identification of this at-risk group and assist in customizing surveillance plans.Brief rationaleScreening for newborns that are small for gestational age (SGA) at birth is currently suboptimal. Our study shows that second trimester abdominal circumference (AC) lag, using a parameter already routinely assessed during anatomic survey, is associated with SGA at birth and can improve current screening for growth restriction and other gestational, fetal and neonatal complications.


Assuntos
Desenvolvimento Fetal , Retardo do Crescimento Fetal/epidemiologia , Circunferência da Cintura , Adulto , Estudos de Casos e Controles , Feminino , Retardo do Crescimento Fetal/diagnóstico por imagem , Peso Fetal , Humanos , Recém-Nascido , Recém-Nascido Pequeno para a Idade Gestacional , Gravidez , Segundo Trimestre da Gravidez , Curva ROC , Estudos Retrospectivos , Medição de Risco , Ultrassonografia Pré-Natal
3.
Obstet Gynecol ; 129(6): 1104-1108, 2017 06.
Artigo em Inglês | MEDLINE | ID: mdl-28486361

RESUMO

OBJECTIVE: To evaluate the relationship between universal transvaginal screening for short cervical length in the second trimester and the timing of antenatal corticosteroids. METHODS: We performed a retrospective cohort study of patients with nonanomalous singleton gestations and spontaneous preterm birth between 24 and 34 weeks of gestation after the initiation of a universal transvaginal cervical length screening program between October 2012 and August 2015. Our primary outcome was antenatal corticosteroid administration to a delivery interval of fewer than 7 days. Secondary outcomes were delivery 24 hours to 7 days after the initial steroid injection, steroid administration to delivery interval, neonatal survival, neonatal intensive care unit length of stay, and respiratory distress syndrome. Multivariable logistic regression was used to estimate the association between antenatal corticosteroid timing and the diagnosis of a short cervix adjusted for potential confounders. RESULTS: Among 266 eligible patients, 69 with a short cervical length and 197 without a short cervical length were identified. There were no statistically significant differences in baseline characteristics between the groups. During the study period, 64 of 69 (92.8%) of patients with a short cervix and 176 of 197 (89.3%) without a short cervix received at least one steroid injection before delivery (P=.411). Steroids were given within 7 days of delivery in 33 of 69 (47.8) patients with a short cervix compared with 126 of 197 (64%) patients in the no short cervix group (P=.015; adjusted odds ratio 0.51, 95% confidence interval 0.29-0.9). Median interval between steroid administration and delivery was 8 days in patients diagnosed with a short cervix compared with 3 days for those without a short cervical length (P<.001). CONCLUSION: Patients identified as having a short cervical length by universal transvaginal ultrasound screening were at greater risk of delivering more than 7 days after the initiation of corticosteroids for fetal lung maturation compared with women without a short cervical length.


Assuntos
Corticosteroides/administração & dosagem , Medida do Comprimento Cervical , Colo do Útero/diagnóstico por imagem , Nascimento Prematuro/diagnóstico por imagem , Adulto , Estudos de Coortes , Parto Obstétrico , Feminino , Maturidade dos Órgãos Fetais , Humanos , Avaliação de Processos e Resultados em Cuidados de Saúde , Gravidez , Resultado da Gravidez , Segundo Trimestre da Gravidez , Nascimento Prematuro/prevenção & controle , Estudos Retrospectivos , Estados Unidos
4.
Soc Cogn Affect Neurosci ; 11(12): 1872-1881, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27497314

RESUMO

Moral judgments are produced through the coordinated interaction of multiple neural systems, each of which relies on a characteristic set of neurotransmitters. Genes that produce or regulate these neurotransmitters may have distinctive influences on moral judgment. Two studies examined potential genetic influences on moral judgment using dilemmas that reliably elicit competing automatic and controlled responses, generated by dissociable neural systems. Study 1 (N = 228) examined 49 common variants (SNPs) within 10 candidate genes and identified a nominal association between a polymorphism (rs237889) of the oxytocin receptor gene (OXTR) and variation in deontological vs utilitarian moral judgment (that is, judgments favoring individual rights vs the greater good). An association was likewise observed for rs1042615 of the arginine vasopressin receptor gene (AVPR1A). Study 2 (N = 322) aimed to replicate these findings using the aforementioned dilemmas as well as a new set of structurally similar medical dilemmas. Study 2 failed to replicate the association with AVPR1A, but replicated the OXTR finding using both the original and new dilemmas. Together, these findings suggest that moral judgment is influenced by variation in the oxytocin receptor gene and, more generally, that single genetic polymorphisms can have a detectable effect on complex decision processes.


Assuntos
Teoria Ética , Julgamento/fisiologia , Princípios Morais , Polimorfismo de Nucleotídeo Único , Receptores de Ocitocina/genética , Adolescente , Adulto , Humanos , Masculino , Pessoa de Meia-Idade , Comportamento Social , Adulto Jovem
5.
Am J Psychiatry ; 172(1): 82-93, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25158072

RESUMO

OBJECTIVE: Obsessive-compulsive disorder (OCD) and Tourette's syndrome are highly heritable neurodevelopmental disorders that are thought to share genetic risk factors. However, the identification of definitive susceptibility genes for these etiologically complex disorders remains elusive. The authors report a combined genome-wide association study (GWAS) of Tourette's syndrome and OCD. METHOD: The authors conducted a GWAS in 2,723 cases (1,310 with OCD, 834 with Tourette's syndrome, 579 with OCD plus Tourette's syndrome/chronic tics), 5,667 ancestry-matched controls, and 290 OCD parent-child trios. GWAS summary statistics were examined for enrichment of functional variants associated with gene expression levels in brain regions. Polygenic score analyses were conducted to investigate the genetic architecture within and across the two disorders. RESULTS: Although no individual single-nucleotide polymorphisms (SNPs) achieved genome-wide significance, the GWAS signals were enriched for SNPs strongly associated with variations in brain gene expression levels (expression quantitative loci, or eQTLs), suggesting the presence of true functional variants that contribute to risk of these disorders. Polygenic score analyses identified a significant polygenic component for OCD (p=2×10(-4)), predicting 3.2% of the phenotypic variance in an independent data set. In contrast, Tourette's syndrome had a smaller, nonsignificant polygenic component, predicting only 0.6% of the phenotypic variance (p=0.06). No significant polygenic signal was detected across the two disorders, although the sample is likely underpowered to detect a modest shared signal. Furthermore, the OCD polygenic signal was significantly attenuated when cases with both OCD and co-occurring Tourette's syndrome/chronic tics were included in the analysis (p=0.01). CONCLUSIONS: Previous work has shown that Tourette's syndrome and OCD have some degree of shared genetic variation. However, the data from this study suggest that there are also distinct components to the genetic architectures of these two disorders. Furthermore, OCD with co-occurring Tourette's syndrome/chronic tics may have different underlying genetic susceptibility compared with OCD alone.


Assuntos
Transtorno Obsessivo-Compulsivo/genética , Síndrome de Tourette/genética , Adulto , Comorbidade , Feminino , Estudo de Associação Genômica Ampla , Humanos , Masculino , Transtorno Obsessivo-Compulsivo/diagnóstico , Transtorno Obsessivo-Compulsivo/epidemiologia , Polimorfismo de Nucleotídeo Único , Escalas de Graduação Psiquiátrica , Índice de Gravidade de Doença , Síndrome de Tourette/diagnóstico , Síndrome de Tourette/epidemiologia
6.
J Am Acad Child Adolesc Psychiatry ; 53(8): 910-9, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25062598

RESUMO

OBJECTIVE: Obsessive-compulsive disorder (OCD) and Tourette syndrome (TS) are heritable neurodevelopmental disorders with a partially shared genetic etiology. This study represents the first genome-wide investigation of large (>500 kb), rare (<1%) copy number variants (CNVs) in OCD and the largest genome-wide CNV analysis in TS to date. METHOD: The primary analyses used a cross-disorder design for 2,699 case patients (1,613 ascertained for OCD, 1,086 ascertained for TS) and 1,789 controls. Parental data facilitated a de novo analysis in 348 OCD trios. RESULTS: Although no global CNV burden was detected in the cross-disorder analysis or in secondary, disease-specific analyses, there was a 3.3-fold increased burden of large deletions previously associated with other neurodevelopmental disorders (p = .09). Half of these neurodevelopmental deletions were located in a single locus, 16p13.11 (5 case patient deletions: 0 control deletions, p = .08 in the current study, p = .025 compared to published controls). Three 16p13.11 deletions were confirmed de novo, providing further support for the etiological significance of this region. The overall OCD de novo rate was 1.4%, which is intermediate between published rates in controls (0.7%) and in individuals with autism or schizophrenia (2-4%). CONCLUSION: Several converging lines of evidence implicate 16p13.11 deletions in OCD, with weaker evidence for a role in TS. The trend toward increased overall neurodevelopmental CNV burden in TS and OCD suggests that deletions previously associated with other neurodevelopmental disorders may also contribute to these phenotypes.


Assuntos
Variações do Número de Cópias de DNA , Transtorno Obsessivo-Compulsivo/genética , Síndrome de Tourette/genética , Adolescente , Manual Diagnóstico e Estatístico de Transtornos Mentais , Feminino , Predisposição Genética para Doença , Estudo de Associação Genômica Ampla , Humanos , Masculino , Transtorno Obsessivo-Compulsivo/diagnóstico , Polimorfismo de Nucleotídeo Único , Síndrome de Tourette/diagnóstico
7.
PLoS One ; 9(7): e101784, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25010186

RESUMO

BACKGROUND: Neuroimaging studies reliably identify two markers of error commission: the error-related negativity (ERN), an event-related potential, and functional MRI activation of the dorsal anterior cingulate cortex (dACC). While theorized to reflect the same neural process, recent evidence suggests that the ERN arises from the posterior cingulate cortex not the dACC. Here, we tested the hypothesis that these two error markers also have different genetic mediation. METHODS: We measured both error markers in a sample of 92 comprised of healthy individuals and those with diagnoses of schizophrenia, obsessive-compulsive disorder or autism spectrum disorder. Participants performed the same task during functional MRI and simultaneously acquired magnetoencephalography and electroencephalography. We examined the mediation of the error markers by two single nucleotide polymorphisms: dopamine D4 receptor (DRD4) C-521T (rs1800955), which has been associated with the ERN and methylenetetrahydrofolate reductase (MTHFR) C677T (rs1801133), which has been associated with error-related dACC activation. We then compared the effects of each polymorphism on the two error markers modeled as a bivariate response. RESULTS: We replicated our previous report of a posterior cingulate source of the ERN in healthy participants in the schizophrenia and obsessive-compulsive disorder groups. The effect of genotype on error markers did not differ significantly by diagnostic group. DRD4 C-521T allele load had a significant linear effect on ERN amplitude, but not on dACC activation, and this difference was significant. MTHFR C677T allele load had a significant linear effect on dACC activation but not ERN amplitude, but the difference in effects on the two error markers was not significant. CONCLUSIONS: DRD4 C-521T, but not MTHFR C677T, had a significant differential effect on two canonical error markers. Together with the anatomical dissociation between the ERN and error-related dACC activation, these findings suggest that these error markers have different neural and genetic mediation.


Assuntos
Potenciais Evocados/genética , Imagem Multimodal , Neuroimagem , Adulto , Alelos , Transtornos Globais do Desenvolvimento Infantil/diagnóstico , Transtornos Globais do Desenvolvimento Infantil/genética , Transtornos Globais do Desenvolvimento Infantil/fisiopatologia , Eletroencefalografia , Feminino , Genótipo , Giro do Cíngulo/fisiopatologia , Humanos , Imageamento por Ressonância Magnética , Magnetoencefalografia , Masculino , Metilenotetra-Hidrofolato Redutase (NADPH2)/genética , Análise Multivariada , Transtorno Obsessivo-Compulsivo/diagnóstico , Transtorno Obsessivo-Compulsivo/genética , Transtorno Obsessivo-Compulsivo/fisiopatologia , Polimorfismo de Nucleotídeo Único , Receptores de Dopamina D4/genética , Movimentos Sacádicos/genética , Movimentos Sacádicos/fisiologia , Esquizofrenia/diagnóstico , Esquizofrenia/genética , Esquizofrenia/fisiopatologia
8.
Biol Psychiatry ; 76(11): 902-10, 2014 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-24529281

RESUMO

BACKGROUND: Individuals with panic disorder (PD) exhibit a hypersensitivity to inhaled carbon dioxide, possibly reflecting a lowered threshold for sensing signals of suffocation. Animal studies have shown that carbon dioxide-mediated fear behavior depends on chemosensing of acidosis in the amygdala via the acid-sensing ion channel ASIC1a. We examined whether the human ortholog of the ASIC1a gene, ACCN2, is associated with the presence of PD and with amygdala structure and function. METHODS: We conducted a case-control analysis (n = 414 PD cases and 846 healthy controls) of ACCN2 single nucleotide polymorphisms and PD. We then tested whether variants showing significant association with PD are also associated with amygdala volume (n = 1048) or task-evoked reactivity to emotional stimuli (n = 103) in healthy individuals. RESULTS: Two single nucleotide polymorphisms at the ACCN2 locus showed evidence of association with PD: rs685012 (odds ratio = 1.32, gene-wise corrected p = .011) and rs10875995 (odds ratio = 1.26, gene-wise corrected p = .046). The association appeared to be stronger when early-onset (age ≤ 20 years) PD cases and when PD cases with prominent respiratory symptoms were compared with controls. The PD risk allele at rs10875995 was associated with increased amygdala volume (p = .035) as well as task-evoked amygdala reactivity to fearful and angry faces (p = .0048). CONCLUSIONS: Genetic variation at ACCN2 appears to be associated with PD and with amygdala phenotypes that have been linked to proneness to anxiety. These results support the possibility that modulation of acid-sensing ion channels may have therapeutic potential for PD.


Assuntos
Canais Iônicos Sensíveis a Ácido/genética , Tonsila do Cerebelo/patologia , Tonsila do Cerebelo/fisiopatologia , Transtorno de Pânico/genética , Polimorfismo de Nucleotídeo Único , Adulto , Mapeamento Encefálico , Estudos de Casos e Controles , Feminino , Estudos de Associação Genética , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Transtorno de Pânico/patologia , Transtorno de Pânico/fisiopatologia
9.
Am J Med Genet B Neuropsychiatr Genet ; 165B(1): 9-18, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24339136

RESUMO

Genome-wide association studies (GWAS) have identified multiple single nucleotide polymorphisms (SNPs) as disease associated variants for schizophrenia (SCZ), bipolar disorder (BPD), or both. Although these results are statistically robust, the functional effects of these variants and their role in the pathophysiology of SCZ or BPD remain unclear. Dissecting the effects of risk genes on distinct domains of brain function can provide important biological insights into the mechanisms by which these genes may confer illness risk. This study used quantitative event related potentials to characterize the neurophysiological effects of well-documented GWAS-derived SCZ/BPD susceptibility variants in order to map gene effects onto important domains of brain function. We genotyped 199 patients with DSM-IV diagnoses of SCZ or BPD and 74 healthy control subjects for 19 risk SNPs derived from previous GWAS findings and tested their association with five neurophysiologic traits (P3 amplitude, P3 latency, N1 amplitude, P2 amplitude, and P50 sensory gating responses) known to be abnormal in psychosis. The TCF4 SNP rs17512836 risk allele showed a significant association with reduced auditory P3 amplitude (P = 0.00016) after correction for multiple testing. The same allele was also associated with delayed P3 latency (P = 0.005). Our results suggest that a SCZ risk variant in TCF4 is associated with neurophysiologic traits thought to index attention and working memory abnormalities in psychotic disorders. These findings suggest a mechanism by which TCF4 may contribute to the neurobiological basis of psychotic illness.


Assuntos
Fatores de Transcrição de Zíper de Leucina e Hélice-Alça-Hélix Básicos/genética , Transtorno Bipolar/genética , Esquizofrenia/genética , Fatores de Transcrição/genética , Adolescente , Adulto , Idoso , Alelos , Ondas Encefálicas , Eletroencefalografia , Feminino , Frequência do Gene , Marcadores Genéticos , Predisposição Genética para Doença , Variação Genética , Estudo de Associação Genômica Ampla , Genótipo , Humanos , Masculino , Pessoa de Meia-Idade , Polimorfismo de Nucleotídeo Único , Transtornos Psicóticos/genética , Risco , Fator de Transcrição 4 , Adulto Jovem
10.
J Affect Disord ; 152-154: 243-9, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24161451

RESUMO

BACKGROUND: There is considerable variation in psychological reactions to natural disasters, with responses ranging from relatively mild and transitory symptoms to severe and persistent posttraumatic stress (PTS). Some survivors also report post-traumatic growth (PTG), or positive psychological changes due to the experience and processing of the disaster and its aftermath. Gene-environment interaction (GxE) studies could offer new insight into the factors underlying variability in post-disaster psychological responses. However, few studies have explored GxE in a disaster context. METHODS: We examined whether ten common variants in seven genes (BDNF, CACNA1C, CRHR1, FKBP5, OXTR, RGS2, SLC6A4) modified associations between Hurricane Katrina exposure and PTS and PTG. Data were from a prospective study of 205 low-income non-Hispanic Black parents residing in New Orleans prior to and following Hurricane Katrina. RESULTS: We found a significant association (after correction) between RGS2 (rs4606; p=0.0044) and PTG, which was mainly driven by a cross-over GxE (p=0.006), rather than a main genetic effect (p=0.071). The G (minor allele) was associated with lower PTG scores for low levels of Hurricane exposure and higher PTG scores for moderate and high levels of exposure. We also found a nominally significant association between variation in FKBP5 (rs1306780, p=0.0113) and PTG, though this result did not survive correction for multiple testing. LIMITATIONS: Although the inclusion of low-income non-Hispanic Black parents allowed us to examine GxE among a highly vulnerable group, our findings may not generalize to other populations or groups experiencing other natural disasters. Moreover, not all participants invited to participate in the genetic study provided saliva. CONCLUSIONS: To our knowledge, this is the first study to identify GxE in the context of post-traumatic growth. Future studies are needed to clarify the role of GxE in PTS and PTG and post-disaster psychological responses, especially among vulnerable populations.


Assuntos
Tempestades Ciclônicas , Desastres , Transtornos de Estresse Pós-Traumáticos/etiologia , Transtornos de Estresse Pós-Traumáticos/genética , Adolescente , Adulto , Fator Neurotrófico Derivado do Encéfalo/genética , Canais de Cálcio Tipo L/genética , Feminino , Interação Gene-Ambiente , Predisposição Genética para Doença , Variação Genética , Humanos , Masculino , Nova Orleans/epidemiologia , Pobreza/psicologia , Pobreza/estatística & dados numéricos , Estudos Prospectivos , Proteínas RGS/genética , Receptores de Hormônio Liberador da Corticotropina/genética , Receptores de Ocitocina/genética , Resiliência Psicológica , Proteínas da Membrana Plasmática de Transporte de Serotonina/genética , Proteínas de Ligação a Tacrolimo/genética , Adulto Jovem
11.
PLoS Genet ; 9(10): e1003864, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-24204291

RESUMO

The direct estimation of heritability from genome-wide common variant data as implemented in the program Genome-wide Complex Trait Analysis (GCTA) has provided a means to quantify heritability attributable to all interrogated variants. We have quantified the variance in liability to disease explained by all SNPs for two phenotypically-related neurobehavioral disorders, obsessive-compulsive disorder (OCD) and Tourette Syndrome (TS), using GCTA. Our analysis yielded a heritability point estimate of 0.58 (se = 0.09, p = 5.64e-12) for TS, and 0.37 (se = 0.07, p = 1.5e-07) for OCD. In addition, we conducted multiple genomic partitioning analyses to identify genomic elements that concentrate this heritability. We examined genomic architectures of TS and OCD by chromosome, MAF bin, and functional annotations. In addition, we assessed heritability for early onset and adult onset OCD. Among other notable results, we found that SNPs with a minor allele frequency of less than 5% accounted for 21% of the TS heritability and 0% of the OCD heritability. Additionally, we identified a significant contribution to TS and OCD heritability by variants significantly associated with gene expression in two regions of the brain (parietal cortex and cerebellum) for which we had available expression quantitative trait loci (eQTLs). Finally we analyzed the genetic correlation between TS and OCD, revealing a genetic correlation of 0.41 (se = 0.15, p = 0.002). These results are very close to previous heritability estimates for TS and OCD based on twin and family studies, suggesting that very little, if any, heritability is truly missing (i.e., unassayed) from TS and OCD GWAS studies of common variation. The results also indicate that there is some genetic overlap between these two phenotypically-related neuropsychiatric disorders, but suggest that the two disorders have distinct genetic architectures.


Assuntos
Transtorno Obsessivo-Compulsivo/genética , Característica Quantitativa Herdável , Síndrome de Tourette/genética , Frequência do Gene , Estudo de Associação Genômica Ampla , Humanos , Transtorno Obsessivo-Compulsivo/patologia , Fenótipo , Polimorfismo de Nucleotídeo Único , Síndrome de Tourette/patologia
13.
Am J Psychiatry ; 169(10): 1065-72, 2012 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23032386

RESUMO

OBJECTIVE It has been suggested that there is a mechanism by which nonsteroidal anti-inflammatory drugs (NSAIDs) may interfere with antidepressant response, and poorer outcomes among NSAID-treated patients were reported in the Sequenced Treatment Alternatives to Relieve Depression (STAR*D) study. To attempt to confirm this association in an independent population-based treatment cohort and explore potential confounding variables, the authors examined use of NSAIDs and related medications among 1,528 outpatients in a New England health care system. METHOD Treatment outcomes were classified using a validated machine learning tool applied to electronic medical records. Logistic regression was used to examine the association between medication exposure and treatment outcomes, adjusted for potential confounding variables. To further elucidate confounding and treatment specificity of the observed effects, data from the STAR*D study were reanalyzed. RESULTS NSAID exposure was associated with a greater likelihood of depression classified as treatment resistant compared with depression classified as responsive to selective serotonin reuptake inhibitors (odds ratio=1.55, 95% CI=1.21-2.00). This association was apparent in the NSAIDs-only group but not in those using other agents with NSAID-like mechanisms (cyclooxygenase-2 inhibitors and salicylates). Inclusion of age, sex, ethnicity, and measures of comorbidity and health care utilization in regression models indicated confounding; association with outcome was no longer significant in fully adjusted models. Reanalysis of STAR*D results likewise identified an association in NSAIDs but not NSAID-like drugs, with more modest effects persisting after adjustment for potential confounding variables. CONCLUSIONS These results support an association between NSAID use and poorer antidepressant outcomes in major depressive disorder but indicate that some of the observed effect may be a result of confounding.


Assuntos
Anti-Inflamatórios não Esteroides/efeitos adversos , Antidepressivos/efeitos adversos , Transtorno Depressivo Maior/tratamento farmacológico , Adulto , Idoso , Anti-Inflamatórios não Esteroides/uso terapêutico , Antidepressivos/uso terapêutico , Interações Medicamentosas , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Farmacovigilância , Fatores de Risco , Resultado do Tratamento
14.
BMJ Open ; 2(2): e000544, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22466034

RESUMO

OBJECTIVE: To examine the association between exposure to newer antidepressants and risk of gastrointestinal (GI) and other bleeding complications among individuals with major depressive disorder (MDD). DESIGN: This study uses an incident user cohort design to compare associations between incidence of vascular/bleeding events and the relative affinity (low, moderate or high) of the antidepressant for the serotonin transporter during an exposure risk period for each patient. SETTING: New England healthcare system electronic medical record database. PARTICIPANTS: 36 389 individuals with a diagnosis of MDD and monotherapy with a selective serotonin reuptake inhibitor, serotonin-norepinephrine reuptake inhibitor or other new-generation antidepressant were identified from among 3.1 million patients in a New England healthcare system. PRIMARY AND SECONDARY OUTCOME MEASURES: Rates of bleeding or other vascular complications, including acute liver failure, acute renal failure, asthma, breast cancer and hip fractures. RESULTS: 601 GI bleeds were observed in the 21 462 subjects in the high-affinity group versus 333 among the 14 927 subjects in the lower affinity group (adjusted RR: 1.17, 95% CI 1.02 to 1.34). Similarly, 776 strokes were observed in the high-affinity group versus 434 in the lower affinity treatment group (adjusted RR: 1.18, 95% CI 1.06 to 1.32). No significant association with risk for a priori negative control outcomes, including acute liver failure, acute renal failure, asthma, breast cancer and hip fractures, was identified. CONCLUSIONS: Use of antidepressants with high affinity for the serotonin transporter may confer modestly elevated risk for GI and other bleeding complications. While multiple methodologic limitations must be considered, these results suggest that antidepressants with lower serotonin receptor affinity may be preferred in patients at greater risk for such complications.

15.
Biochim Biophys Acta ; 1822(2): 111-9, 2012 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-22056405

RESUMO

The purpose of this study was to determine the relationship between mitochondrial DNA (mtDNA) deletions, mtDNA content and aging in rhesus monkeys. Using 2 sets of specific primers, we amplified an 8 kb mtDNA fragment covering a common 5.7 kb deletion and the entire 16.5 kb mitochondrial genome in the brain and buffy-coats of young and aged monkeys. We studied a total of 66 DNA samples: 39 were prepared from a buffy-coat and 27 were prepared from occipital cortex tissues. The mtDNA data were assessed using a permutation test to identify differences in mtDNA, in the different monkey groups. Using real-time RT-PCR strategy, we also assessed both mtDNA and nuclear DNA levels for young, aged and male and female monkeys. We found a 5.7 kb mtDNA deletion in 81.8% (54 of 66) of the total tested samples. In the young group of buffy-coat DNA, we found 5.7 kb deletions in 7 of 17 (41%), and in the aged group, we found 5.7 kb deletions in 12 of 22 (54%), suggesting that the prevalence of mtDNA deletions is related to age. We found decreased mRNA levels of mtDNA in aged monkeys relative to young monkeys. The increases in mtDNA deletions and mtDNA levels in aged rhesus monkeys suggest that damaged DNA accumulates as rhesus monkeys age and these altered mtDNA changes may have physiological relevance to compensate decreased mitochondrial function.


Assuntos
Envelhecimento/genética , Dano ao DNA/genética , DNA Mitocondrial/genética , Genoma Mitocondrial , Macaca mulatta/genética , Mitocôndrias/genética , Animais , Buffy Coat/metabolismo , Encéfalo/metabolismo , Feminino , Deleção de Genes , Macaca mulatta/sangue , Masculino
16.
Patient Educ Couns ; 86(3): 329-34, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21752570

RESUMO

OBJECTIVE: To explore how effectively information presentation formats used in a patient decision aid communicated the ability of a disease modifying anti-rheumatic drug to slow the rate of progression of rheumatoid arthritis related structural joint damage (SJD). METHODS: 91 first year psychology students and 91 RA patients participated in a prospective randomized, single blind, factorial experimental design evaluating the effect of four information formats on: satisfaction with risk communication, verbatim and gist recall of a hypothetical anti-rheumatic drug's ability to slow the rate of progression of SJD. RESULTS: Both groups underestimated the hypothetical drug's ability to slow SJD. Formats that supported the narrative statement with a reinforcing graphic element resulted in recall closer to the true value. Comparison of the results from testing of RA patients and college students were remarkably similar across formats. CONCLUSION: Rate of progression as communicated by narrative statement plus a graphic element (i.e. speedometer metaphor or pictograph) aided recall better than a narrative statement alone. Our results suggest that testing decision aid components with non-patients may provide data generalizable to patient populations. PRACTICE IMPLICATIONS: Graphics must be used carefully in patient decision aids as they can enhance recall, but may also introduce unintended recall bias.


Assuntos
Antirreumáticos/administração & dosagem , Artrite Reumatoide/tratamento farmacológico , Comportamento de Escolha , Comunicação , Técnicas de Apoio para a Decisão , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Progressão da Doença , Relação Dose-Resposta a Droga , Análise Fatorial , Feminino , Humanos , Masculino , Memória de Curto Prazo , Pessoa de Meia-Idade , Estudos Prospectivos , Método Simples-Cego , Adulto Jovem
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