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Articles 1 - 30 of 89
Full-Text Articles in Medicine and Health Sciences
Family-Focused Treatment For Adolescents And Young Adults At High Risk For Psychosis: Results Of A Randomized Trial, D. J. Miklowitz, M. P. O'Brien, D. A. Schlosser, J. Addington, K. A. Candan, B. C. Walsh, J. L. Zinberg, S. D. De Silva, M. Friedman-Yakoobian, T. D. Cannon, +2 Additional Authors
Family-Focused Treatment For Adolescents And Young Adults At High Risk For Psychosis: Results Of A Randomized Trial, D. J. Miklowitz, M. P. O'Brien, D. A. Schlosser, J. Addington, K. A. Candan, B. C. Walsh, J. L. Zinberg, S. D. De Silva, M. Friedman-Yakoobian, T. D. Cannon, +2 Additional Authors
Journal Articles
Objective: Longitudinal studies have begun to clarify the phenotypic characteristics of adolescents and young adults at clinical high risk for psychosis. This 8-site randomized trial examined whether a 6-month program of family psychoeducation was effective in reducing the severity of attenuated positive and negative psychotic symptoms and enhancing functioning among individuals at high risk. Method: Adolescents and young adults (mean age 17.4 +/- 4.1 years) with attenuated positive psychotic symptoms, brief and intermittent psychosis, or genetic risk with functional deterioration were randomly assigned to 18 sessions of family-focused therapy for individuals at clinical high risk (FFT-CHR) in 6 months or …
A Randomized Trial Of Family Focused Therapy With Populations At Clinical High Risk For Psychosis: Effects On Interactional Behavior, M. P. O'Brien, D. J. Miklowitz, K. A. Candan, C. Marshall, I. Domingues, B. C. Walsh, J. L. Zinberg, S. D. De Silva, K. A. Woodberry, T. D. Cannon
A Randomized Trial Of Family Focused Therapy With Populations At Clinical High Risk For Psychosis: Effects On Interactional Behavior, M. P. O'Brien, D. J. Miklowitz, K. A. Candan, C. Marshall, I. Domingues, B. C. Walsh, J. L. Zinberg, S. D. De Silva, K. A. Woodberry, T. D. Cannon
Journal Articles
Objective: This study investigated whether family focused therapy (FFT-CHR), an 18-session intervention that consisted of psychoeducation and training in communication and problem solving, brought about greater improvements in family communication than enhanced care (EC), a 3-session psychoeducational intervention, among individuals at clinical high risk for developing psychosis. Method: This study was conducted within a randomized controlled trial across 8 sites. We examined 10-min problem-solving discussions at baseline and 6-month reassessment among 66 adolescents and young adults and their parents. Trained coders who were blind to treatment and time of assessment achieved high levels of interrater reliability when evaluating family discussions …
Serum Levels Of Brain-Derived Neurotrophic Factor At 4 Weeks And Response To Treatment With Ssris, R. Yoshimura, T. Kishi, H. Hori, A. Katsuki, A. Sugita-Ikenouchi, W. Umene-Nakano, K. Atake, N. Iwata, J. Nakamura
Serum Levels Of Brain-Derived Neurotrophic Factor At 4 Weeks And Response To Treatment With Ssris, R. Yoshimura, T. Kishi, H. Hori, A. Katsuki, A. Sugita-Ikenouchi, W. Umene-Nakano, K. Atake, N. Iwata, J. Nakamura
Journal Articles
Objective It is important to predict a response to an antidepressant in early time after starting the antidepressant. We previously reported that serum brain-derived neurotrophic factor (BDNF) levels in responders to treatment with antidepressants were increased, whereas, those in nonresponders were not. Therefore, we hypothesized that the changes in serum levels of BDNF from baseline (TO) to 4 weeks (T4) after treatment with selective serotonin reuptake inhibitors (SSRIs) predict the response to the treatment at 8 weeks (T8) in depressed patients. To confirm the hypothesis, we measured serum BDNF at TO, T4, and T8 during the treatment with SSRIs (paroxetine, …
Near-Infrared Spectroscopy And Plasma Homovanillic Acid Levels In Bipolar Disorder: A Case Report, I. Miura, S. Kono, S. Oshima, K. Kanno-Nozaki, H. Mashiko, S. I. Niwa, H. Yabe
Near-Infrared Spectroscopy And Plasma Homovanillic Acid Levels In Bipolar Disorder: A Case Report, I. Miura, S. Kono, S. Oshima, K. Kanno-Nozaki, H. Mashiko, S. I. Niwa, H. Yabe
Journal Articles
Misdiagnosis of bipolar disorder is a serious, but not unusual problem for patients. Nevertheless, there are few biomarkers for distinguishing unipolar and bipolar disorder. Near-infrared spectroscopy (NIRS) is a noninvasive and useful method for the measurement of hemoglobin concentration changes in the cortical surface area, which enables the assessment of brain function. We measured NIRS and plasma monoamine metabolite levels in a patient with bipolar disorder. A 22-year-old man was admitted due to major depression. At admission, NIRS findings showed oxygenated hemoglobin reincrease in the posttask period, which is characteristic of schizophrenia. After treatment with paroxetine, he became manic with …
The Subjective Experience Of Youths At Clinically High Risk Of Psychosis: A Qualitative Study, S. Ben-David, M. L. Birnbaum, M. E. Eilenberg, J. E. Devylder, K. E. Gill, J. Schienle, N. Azimov, E. P. Lukens, L. Davidson, C. M. Corcoran
The Subjective Experience Of Youths At Clinically High Risk Of Psychosis: A Qualitative Study, S. Ben-David, M. L. Birnbaum, M. E. Eilenberg, J. E. Devylder, K. E. Gill, J. Schienle, N. Azimov, E. P. Lukens, L. Davidson, C. M. Corcoran
Journal Articles
Objective: Understanding the experience of individuals across stages of schizophrenia is important for development of services to promote recovery. As yet, little is known about the experience of individuals who exhibit prodromal symptoms of schizophrenia. Methods: Audiotaped interviews were conducted with 27 participants of diverse racial-ethnic backgrounds who were at clinically high risk of psychosis (15 males and 12 females; mean age 21). Phenomenological qualitative research techniques of coding, consensus, and comparison were used. Results: Emergent themes differed by gender. Themes for males were feeling abnormal or "broken," focus on going " crazy," fantasy and escapism, and alienation and despair, …
Dopaminergic Influences On Emotional Decision Making In Euthymic Bipolar Patients, K. E. Burdick, R. J. Braga, C. B. Gopin, A. K. Malhotra
Dopaminergic Influences On Emotional Decision Making In Euthymic Bipolar Patients, K. E. Burdick, R. J. Braga, C. B. Gopin, A. K. Malhotra
Journal Articles
We recently reported that the D2/D3 agonist pramipexole may have pro-cognitive effects in euthymic patients with bipolar disorder (BPD); however, the emergence of impulse-control disorders has been documented in Parkinson's disease (PD) after pramipexole treatment. Performance on reward-based tasks is altered in healthy subjects after a single dose of pramipexole, but its potential to induce abnormalities in BPD patients is unknown. We assessed reward-dependent decision making in euthymic BPD patients pre- and post 8 weeks of treatment with pramipexole or placebo by using the Iowa Gambling Task (IGT). The IGT requires subjects to choose among four card decks (two risky …
Reliability Of Neuroanatomical Measurements In A Multisite Longitudinal Study Of Youth At Risk For Psychosis, T. D. Cannon, L. J. Seidman, H. W. Thermenos, B. A. Cornblatt, D. M. Olvet, D. Perkins, M. L. Qiu, D. H. Mathalon, P. Thompson, A. W. Toga, +19 Additional Authors
Reliability Of Neuroanatomical Measurements In A Multisite Longitudinal Study Of Youth At Risk For Psychosis, T. D. Cannon, L. J. Seidman, H. W. Thermenos, B. A. Cornblatt, D. M. Olvet, D. Perkins, M. L. Qiu, D. H. Mathalon, P. Thompson, A. W. Toga, +19 Additional Authors
Journal Articles
Multisite longitudinal neuroimaging designs are used to identify differential brain structural change associated with onset or progression of disease. The reliability of neuroanatomical measurements over time and across sites is a crucial aspect of power in such studies. Prior work has found that while within-site reliabilities of neuroanatomical measurements are excellent, between-site reliability is generally more modest. Factors that may increase between-site reliability include standardization of scanner platform and sequence parameters and correction for between-scanner variations in gradient nonlinearities. Factors that may improve both between- and within-site reliability include use of registration algorithms that account for individual differences in cortical …
Clinical Predictors Of Therapeutic Response To Antipsychotics In Schizophrenia, M. Carbon, C. U. Correll
Clinical Predictors Of Therapeutic Response To Antipsychotics In Schizophrenia, M. Carbon, C. U. Correll
Journal Articles
The search for clinical outcome predictors for schizophrenia is as old as the field of psychiatry. However, despite a wealth of large, longitudinal studies into prognostic factors, only very few clinically useful outcome predictors have been identified. The goal of future treatment is to either affect modifiable risk factors, or use nonmodifiable factors to parse patients into therapeutically meaningful subgroups. Most clinical outcome predictors are nonspecific and/or nonmodifiable. Nonmodifiable predictors for poor odds of remission include male sex, younger age at disease onset, poor premorbid adjustment, and severe baseline psychopathology. Modifiable risk factors for poor therapeutic outcomes that clinicians can …
Type And Duration Of Subsyndromal Symptoms In Youth With Bipolar I Disorder Prior To Their First Manic Episode, C. U. Correll, M. Hauser, J. B. Penzner, A. M. Auther, V. Kafantaris, E. Saito, D. Olvet, R. E. Carrion, M. Pavuluri, B. A. Cornblatt, +4 Additional Authors
Type And Duration Of Subsyndromal Symptoms In Youth With Bipolar I Disorder Prior To Their First Manic Episode, C. U. Correll, M. Hauser, J. B. Penzner, A. M. Auther, V. Kafantaris, E. Saito, D. Olvet, R. E. Carrion, M. Pavuluri, B. A. Cornblatt, +4 Additional Authors
Journal Articles
Objectives: The aim of the present study was to systematically evaluate the prodrome to mania in youth. Methods: New-onset/worsening symptoms/signs of >= moderate severity preceding first mania were systematically assessed in 52 youth (16.2 +/- 2.8 years) with a research diagnosis of bipolar I disorder (BD-I). Youth and/or caregivers underwent semi-structured interviews, using the Bipolar Prodrome Symptom Scale-Retrospective. Results: The mania prodrome was reported to start gradually in most youth (88.5%), with either slow (59.6%) or rapid (28.8%) deterioration, while a rapid-onset-and-deterioration prodrome was rare (11.5%). The manic prodrome, conservatively defined as requiring >= 3 symptoms, lasted 10.3 +/- 14.4 …
The Relation Between Childhood Maltreatment And Psychosis In Patients With Schizophrenia And Non-Psychiatric Controls, P. Derosse, G. C. Nitzburg, B. Kompancaril, A. K. Malhotra
The Relation Between Childhood Maltreatment And Psychosis In Patients With Schizophrenia And Non-Psychiatric Controls, P. Derosse, G. C. Nitzburg, B. Kompancaril, A. K. Malhotra
Journal Articles
Several lines of evidence suggest that childhood maltreatment is associated with an increased risk for both psychotic disorders and subclinical psychotic-like experiences in the general population. Few studies, however, have sought to examine whether the strength of this relationship is comparable across patient and non-patient groups. The present study sought to compare the strength of the association between childhood maltreatment and self-reported psychotic symptoms in 447 healthy adult volunteers and 184 stable outpatients with schizophrenia or schizoaffective disorder. Strong positive correlations between childhood maltreatment and self-reported symptoms were observed in both groups. Although patients scored significantly higher than controls on …
The Bipolar Prodrome Symptom Interview And Scale-Prospective (Bpss-P): Description And Validation In A Psychiatric Sample And Healthy Controls, C. U. Correll, D. M. Olvet, A. M. Auther, M. Hauser, T. Kishimoto, R. Carrion, S. Snyder, B. A. Cornblatt
The Bipolar Prodrome Symptom Interview And Scale-Prospective (Bpss-P): Description And Validation In A Psychiatric Sample And Healthy Controls, C. U. Correll, D. M. Olvet, A. M. Auther, M. Hauser, T. Kishimoto, R. Carrion, S. Snyder, B. A. Cornblatt
Journal Articles
Objective: The aim of the present study was to investigate the psychometric properties of the Bipolar Prodrome Symptom Interview and Scale-Prospective (BPSS-P), the first specific interview for emerging bipolar disorder (BD) symptoms. Methods: A total of 205 youth aged 12-23 years and/or their caregivers underwent BPSS-P interviews: 129 patients with mood spectrum disorders [ depression spectrum disorder (n = 77), mood disorder not otherwise specified (NOS) (n = 27), BD-NOS (n = 14), bipolar I disorder (BD-I)/bipolar II disorder (BD-II)/cyclothymia (n = 11), 34 with non-mood spectrum disorders, and 42 healthy controls (HCs)]. We used Cronbach's alpha to assess internal …
Clozapine-Induced Agranulocytosis Is Associated With Rare Hla-Dqb1 And Hla-B Alleles, J. I. Goldstein, L. F. Jarskog, C. Hilliard, A. Alfirevic, H. L. Huang, M. Lek, A. L. Holden, D. L. Kelly, A. K. Malhotra, P. F. Sullivan, +21 Additional Authors
Clozapine-Induced Agranulocytosis Is Associated With Rare Hla-Dqb1 And Hla-B Alleles, J. I. Goldstein, L. F. Jarskog, C. Hilliard, A. Alfirevic, H. L. Huang, M. Lek, A. L. Holden, D. L. Kelly, A. K. Malhotra, P. F. Sullivan, +21 Additional Authors
Journal Articles
Clozapine is a particularly effective antipsychotic medication but its use is curtailed by the risk of clozapine-induced agranulocytosis/granulocytopenia (CIAG), a severe adverse drug reaction occurring in up to 1% of treated individuals. Identifying genetic risk factors for CIAG could enable safer and more widespread use of clozapine. Here we perform the largest and most comprehensive genetic study of CIAG to date by interrogating 163 cases using genomewide genotyping and whole-exome sequencing. We find that two loci in the major histocompatibility complex are independently associated with CIAG: a single amino acid in HLA-DQB1 (126Q) (P = 4.7 x 10(-14), odds ratio …
Independent Component Analysis Of Resting State Activity In Pediatric Obsessive-Compulsive Disorder, P. Gruner, A. Vo, M. Argyelan, T. Ikuta, A. J. Degnan, M. John, B. D. Peters, A. K. Malhotra, A. M. Ulug, P. Szeszko
Independent Component Analysis Of Resting State Activity In Pediatric Obsessive-Compulsive Disorder, P. Gruner, A. Vo, M. Argyelan, T. Ikuta, A. J. Degnan, M. John, B. D. Peters, A. K. Malhotra, A. M. Ulug, P. Szeszko
Journal Articles
Obsessive-compulsive disorder (OCD) is an often severely disabling illness with onset generally in childhood or adolescence. Little is known, however, regarding the pattern of brain resting state activity in OCD early in the course of illness. We therefore examined differences in brain resting state activity in patients with pediatric OCD compared with healthy volunteers and their clinical correlates. Twenty-three pediatric OCD patients and 23 healthy volunteers (age range 9-17), matched for sex, age, handedness, and IQ completed a resting state functional magnetic resonance imaging exam at 3T. Patients completed the Children's Yale Brown Obsessive Scale. Data were decomposed into 36 …
Sudden Unexpected Death In Schizophrenia: Autopsy Findings In Psychiatric Inpatients, P. Ifteni, C. U. Correll, V. Burtea, J. M. Kane, P. Manu
Sudden Unexpected Death In Schizophrenia: Autopsy Findings In Psychiatric Inpatients, P. Ifteni, C. U. Correll, V. Burtea, J. M. Kane, P. Manu
Journal Articles
Schizophrenia is associated with premature mortality and a high rate of sudden, unexpected deaths. Autopsy data are scant, and in studies using death certificates or root cause assessments, a majority of sudden deaths remained unexplained. In the community, post-mortem data indicate that the most common cause of sudden "natural" death is coronary artery disease. In this study, we used autopsy findings to determine the cause of sudden death in a consecutive cohort of 7189 schizophrenia patients admitted to a free-standing, psychiatric teaching hospital from 1989 to 2013. Medical record review identified 57 patients (0.79%) who died suddenly and unexpectedly during …
Schizophrenia Relapse After Stopping Olanzapine Treatment During Pregnancy: A Case Report, P. Ifteni, M. A. Moga, V. Burtea, C. U. Correll
Schizophrenia Relapse After Stopping Olanzapine Treatment During Pregnancy: A Case Report, P. Ifteni, M. A. Moga, V. Burtea, C. U. Correll
Journal Articles
Women with schizophrenia have a high risk for symptom exacerbation or relapse during pregnancy and thereafter. Relapses are more frequent when antipsychotics are discontinued. This paper describes the case of a 28-year old woman with schizophrenia who continued treatment with olanzapine during the first trimester. Olanzapine, a second-generation antipsychotic, was administered at a therapeutic dose from week 1 of gestation until week 13 when she reported the pregnancy to her psychiatrist. Despite the psychiatrist's recommendation to continue treatment, the patient stopped olanzapine at 20 weeks. She was hospitalized at week 36 for a schizophrenia relapse and was transferred to the …
A Schizophrenia Risk Gene, Znf804a, Is Associated With Brain White Matter Microstructure, T. Ikuta, B. D. Peters, S. Guha, M. John, K. H. Karlsgodt, T. Lencz, P. R. Szeszko, A. K. Malhotra
A Schizophrenia Risk Gene, Znf804a, Is Associated With Brain White Matter Microstructure, T. Ikuta, B. D. Peters, S. Guha, M. John, K. H. Karlsgodt, T. Lencz, P. R. Szeszko, A. K. Malhotra
Journal Articles
Genome-wide association studies have provided strong evidence for association of the SNP rs1344706 in the ZNF804A gene with schizophrenia and bipolar disorder. Neuroimaging studies have suggested that variation at rs1344706 may be associated with neural endophenotypes such as white matter volumes and densities. However, analyses of white matter microstructure using diffusion tensor imaging (DTI) have produced conflicting results. We examined the association between rs1344706 and white matter microstructure in 107 healthy individuals using tract-based spatial statistics (TBSS). TBSS analysis showed significant association between the risk allele and lower fractional anisotropy in the corpus callosum, left forceps minor, and right parietal …
Subcortical Modulation Of Attentional Control By Second-Generation Antipsychotics In First-Episode Psychosis, T. Ikuta, D. G. Robinson, J. A. Gallego, B. D. Peters, P. Gruner, J. M. Kane, M. John, S. Sevy, A. K. Malhotra, P. R. Szeszko
Subcortical Modulation Of Attentional Control By Second-Generation Antipsychotics In First-Episode Psychosis, T. Ikuta, D. G. Robinson, J. A. Gallego, B. D. Peters, P. Gruner, J. M. Kane, M. John, S. Sevy, A. K. Malhotra, P. R. Szeszko
Journal Articles
Psychotic disorders are characterized by significant deficits in attentional control, but the neurobiological mechanisms underlying these deficits early in the course of illness prior to extensive pharmacotherapy are not well understood. Moreover, little is known regarding the symptom and brain changes associated with amelioration of attentional impairments through antipsychotic pharmacotherapy. In this study 14 male patients experiencing a first-episode of psychosis with minimal prior antipsychotic treatment completed an attentional control task while undergoing functional magnetic resonance imaging at the onset of treatment with a second generation antipsychotic (rispericlone or aripiprazole) in a double blind randomized clinical trial and then again …
Hospitalization Rates In Patients Switched From Oral Anti-Psychotics To Aripiprazole Once-Monthly: Final Efficacy Analysis, John Kane, C. Zhao, B. R. Johnson, R. A. Baker, A. Eramo, R. D. Mcquade, A. R. Duca, R. Sanchez, T. Peters-Strickland
Hospitalization Rates In Patients Switched From Oral Anti-Psychotics To Aripiprazole Once-Monthly: Final Efficacy Analysis, John Kane, C. Zhao, B. R. Johnson, R. A. Baker, A. Eramo, R. D. Mcquade, A. R. Duca, R. Sanchez, T. Peters-Strickland
Journal Articles
Abstract Objective: To compare hospitalization rates in patients with schizophrenia treated prospectively with aripiprazole once-monthly 400 mg (AOM 400; an extended-release injectable suspension) vs the same patients' retrospective rates with their prior oral anti-psychotic therapy. Research design and methods: Multi-center, open-label, mirror-image, naturalistic study in a community setting in North America. Patients who required a change in treatment and/or would benefit from long-acting injectable anti-psychotic therapy were treated prospectively for 6 months with AOM 400. Retrospective data on hospitalization rates were obtained. Clinical trial registration: ClinicalTrials.gov: NCT01432444. Main outcome measures: The proportion of patients with >/=1 psychiatric inpatient hospitalization with …
Altered White Matter Microstructure Is Associated With Social Cognition And Psychotic Symptoms In 22q11.2 Microdeletion Syndrome, M. Jalbrzikowski, J. E. Villalon-Reina, K. H. Karlsgodt, D. Senturk, C. Chow, P. M. Thompson, C. E. Bearden
Altered White Matter Microstructure Is Associated With Social Cognition And Psychotic Symptoms In 22q11.2 Microdeletion Syndrome, M. Jalbrzikowski, J. E. Villalon-Reina, K. H. Karlsgodt, D. Senturk, C. Chow, P. M. Thompson, C. E. Bearden
Journal Articles
22q11.2 Microdeletion Syndrome (22q11DS) is a highly penetrant genetic mutation associated with a significantly increased risk for psychosis. Aberrant neurodevelopment may lead to inappropriate neural circuit formation and cerebral dysconnectivity in 22q11DS, which may contribute to symptom development. Here we examined: (1) differences between 22q11DS participants and typically developing controls in diffusion tensor imaging (DTI) measures within white matter tracts; (2) whether there is an altered age-related trajectory of white matter pathways in 22q11DS; and (3) relationships between DTI measures, social cognition task performance, and positive symptoms of psychosis in 22q11DS and typically developing controls. Sixty-four direction diffusion weighted imaging …
The Relation Between Diabetes Self-Efficacy And Psychological Distress Among Older Adults: Do Racial And Ethnic Differences Exist?, G. Kim, Ruth Shim, K. L. Ford, T. A. Baker
The Relation Between Diabetes Self-Efficacy And Psychological Distress Among Older Adults: Do Racial And Ethnic Differences Exist?, G. Kim, Ruth Shim, K. L. Ford, T. A. Baker
Journal Articles
OBJECTIVE: This study examined racial/ethnic differences in the relationship between diabetes self-efficacy and psychological distress among older adults with diabetes mellitus. METHOD: Adults aged 60 or older with a diagnosis of diabetes mellitus (N = 3,067) were drawn from the 2009 California Health Interview Survey (CHIS). Hierarchical multiple regression analyses were conducted. RESULTS: After controlling for covariates, African Americans and those with higher levels of diabetes self-efficacy tended to have lower levels of psychological distress. Significant interactions were found in the Hispanic/Latino and Asian groups: The effect of diabetes self-efficacy on psychological distress was greater for Hispanics/Latinos and Asians than …
Long-Acting Injectable Vs Oral Antipsychotics For Relapse Prevention In Schizophrenia: A Meta-Analysis Of Randomized Trials, Taishiro Kishimoto, A. Robenzadeh, C. Leucht, S. Leucht, K. Watanabe, M. Mimura, M. Borenstein, John Kane, Christoph Correll
Long-Acting Injectable Vs Oral Antipsychotics For Relapse Prevention In Schizophrenia: A Meta-Analysis Of Randomized Trials, Taishiro Kishimoto, A. Robenzadeh, C. Leucht, S. Leucht, K. Watanabe, M. Mimura, M. Borenstein, John Kane, Christoph Correll
Journal Articles
Background: While long-acting injectable antipsychotics (LAIs) are hoped to reduce high relapse rates in schizophrenia, recent randomized controlled trials (RCTs) challenged the benefits of LAIs over oral antipsychotics (OAPs). Methods: Systematic review/meta-analysis of RCTs that lasted = 6 months comparing LAIs and OAPs. Primary outcome was study-defined relapse at the longest time point; secondary outcomes included relapse at 3, 6, 12, 18, and 24 months, all-cause discontinuation, discontinuation due to adverse events, drug inefficacy (ie, relapse + discontinuation due to inefficacy), hospitalization, and nonadherence. Results: Across 21 RCTs (n = 5176), LAIs were similar to OAPs for relapse prevention at …
Cb2 Receptor Deficiency Increases Amyloid Pathology And Alters Tau Processing In A Transgenic Mouse Model Of Alzheimer's Disease, Jeremy Koppel, V. Vingtdeux, P. Marambaud, C. D'Abramo, H. Jimenez, M. Stauber, R. Friedman, P. Davies
Cb2 Receptor Deficiency Increases Amyloid Pathology And Alters Tau Processing In A Transgenic Mouse Model Of Alzheimer's Disease, Jeremy Koppel, V. Vingtdeux, P. Marambaud, C. D'Abramo, H. Jimenez, M. Stauber, R. Friedman, P. Davies
Journal Articles
The endocannabinoid CB2 receptor system has been implicated in the neuropathology of Alzheimer's disease (AD). In order to investigate the impact of the CB2 receptor system on AD pathology, a colony of mice with a deleted CB2 receptor gene, CNR2, was established on a transgenic human mutant APP background for pathological comparison with CB2 receptor-sufficient transgenic mice. J20 APP (PDGFB-APPSwInd) mice were bred over two generations with CNR2(-/-) (Cnr2(tm1Dgen)/J) mice to produce a colony of J20 CNR2(+/+) and J20 CNR2(-/-)mice. Seventeen J20 CNR2(+/+) mice (12 females, 5 males) and 16 J20 CNR2(-/-) mice (11 females, 5 males) were killed at …
The Influence Of Neighborhood Characteristics On Police Officers' Encounters With Persons Suspected To Have A Serious Mental Illness, S. Krishan, R. Bakeman, B. Broussard, S. L. Cristofaro, D. Hankerson-Dyson, L. Husbands, A. C. Watson, Michael Compton
The Influence Of Neighborhood Characteristics On Police Officers' Encounters With Persons Suspected To Have A Serious Mental Illness, S. Krishan, R. Bakeman, B. Broussard, S. L. Cristofaro, D. Hankerson-Dyson, L. Husbands, A. C. Watson, Michael Compton
Journal Articles
Objective: Police officers' decisions and behaviors are impacted by the neighborhood context in which police encounters occur. For example, officers may use greater force and be more likely to make arrests in disadvantaged neighborhoods. We examined whether neighborhood characteristics influence police encounters with individuals suspected to have a serious mental illness, addictive disorder, or developmental disability. Method: We obtained data on 916 encounters from 166 officers in six jurisdictions in Georgia, USA and abstracted geographical data pertaining to the location of these encounters from United States Decennial Census data. Encounters were nested within 163 census tracts. Officer-reported data covered general …
Psychotic Alzheimer's Disease Is Associated With Gender-Specific Tau Phosphorylation Abnormalities, Jeremy Koppel, C. Acker, P. Davies, O. L. Lopez, H. Jimenez, M. Azose, Blaine Greenwald, P. S. Murray, C. M. Kirkwood, J. Kofler, R. A. Sweet
Psychotic Alzheimer's Disease Is Associated With Gender-Specific Tau Phosphorylation Abnormalities, Jeremy Koppel, C. Acker, P. Davies, O. L. Lopez, H. Jimenez, M. Azose, Blaine Greenwald, P. S. Murray, C. M. Kirkwood, J. Kofler, R. A. Sweet
Journal Articles
Converging evidence suggests that psychotic Alzheimer's disease (AD + P) is associated with an acceleration of frontal degeneration, with tau pathology playing a primary role. Previous histopathologic and biomarker studies have specifically implicated tau pathology in this condition. To precisely quantify tau abnormalities in the frontal cortex in AD + P, we used a sensitive biochemical assay of total tau and 4 epitopes of phospho-tau relevant in AD pathology in a postmortem sample of AD + P and AD - P. Samples of superior frontal gyrus from 26 AD subjects without psychosis and 45 AD + P subjects with psychosis …
Molecular Genetic Evidence For Overlap Between General Cognitive Ability And Risk For Schizophrenia: A Report From The Cognitive Genomics Consortium (Cogent), T. Lencz, E. Knowles, G. Davies, S. Guha, D. C. Liewald, J. M. Starr, S. Djurovic, I. Melle, K. Sundet, A. Christoforou, I. Reinvang, S. Mukherjee, P. Derosse, A. Lundervold, V. M. Steen, M. John, T. Espeseth, K. Raikkonen, E. Widen, A. Palotie, J. G. Eriksson, I. Giegling, B. Konte, M. Ikeda, P. Roussos, S. Giakoumaki, K. E. Burdick, A. Payton, W. Ollier, M. Horan, G. Donohoe, D. Morris, A. Corvin, M. Gill, N. Pendleton, N. Iwata, A. Darvasi, P. Bitsios, D. Rujescu, J. Lahti, S. L. Hellard, M. C. Keller, O. A. Andreassen, I. J. Deary, D. C. Glahn, Anil Malhotra
Molecular Genetic Evidence For Overlap Between General Cognitive Ability And Risk For Schizophrenia: A Report From The Cognitive Genomics Consortium (Cogent), T. Lencz, E. Knowles, G. Davies, S. Guha, D. C. Liewald, J. M. Starr, S. Djurovic, I. Melle, K. Sundet, A. Christoforou, I. Reinvang, S. Mukherjee, P. Derosse, A. Lundervold, V. M. Steen, M. John, T. Espeseth, K. Raikkonen, E. Widen, A. Palotie, J. G. Eriksson, I. Giegling, B. Konte, M. Ikeda, P. Roussos, S. Giakoumaki, K. E. Burdick, A. Payton, W. Ollier, M. Horan, G. Donohoe, D. Morris, A. Corvin, M. Gill, N. Pendleton, N. Iwata, A. Darvasi, P. Bitsios, D. Rujescu, J. Lahti, S. L. Hellard, M. C. Keller, O. A. Andreassen, I. J. Deary, D. C. Glahn, Anil Malhotra
Journal Articles
It has long been recognized that generalized deficits in cognitive ability represent a core component of schizophrenia (SCZ), evident before full illness onset and independent of medication. The possibility of genetic overlap between risk for SCZ and cognitive phenotypes has been suggested by the presence of cognitive deficits in first-degree relatives of patients with SCZ; however, until recently, molecular genetic approaches to test this overlap have been lacking. Within the last few years, large-scale genome-wide association studies (GWAS) of SCZ have demonstrated that a substantial proportion of the heritability of the disorder is explained by a polygenic component consisting of …
The Relationship Of Neurocognition And Negative Symptoms To Social And Role Functioning Over Time In Individuals At Clinical High Risk In The First Phase Of The North American Prodrome Longitudinal Study, E. C. Meyer, Ricardo Carrion, Barbara Cornblatt, J. Addington, K. S. Cadenhead, T. D. Cannon, T. H. Mcglashan, D. O. Perkins, M. T. Tsuang, L. J. Seidman, +3 Additional Authors
The Relationship Of Neurocognition And Negative Symptoms To Social And Role Functioning Over Time In Individuals At Clinical High Risk In The First Phase Of The North American Prodrome Longitudinal Study, E. C. Meyer, Ricardo Carrion, Barbara Cornblatt, J. Addington, K. S. Cadenhead, T. D. Cannon, T. H. Mcglashan, D. O. Perkins, M. T. Tsuang, L. J. Seidman, +3 Additional Authors
Journal Articles
OBJECTIVES: Impaired social, role, and neurocognitive functioning are preillness characteristics of people who later develop psychosis. In people with schizophrenia, neurocognition and negative symptoms are associated with functional impairment. We examined the relative contributions of neurocognition and symptoms to social and role functioning over time in clinically high-risk (CHR) individuals and determined if negative symptoms mediated the influence of cognition on functioning. METHODS: Social, role, and neurocognitive functioning and positive, negative, and disorganized symptoms were assessed in 167 individuals at CHR for psychosis in the North American Prodrome Longitudinal Study Phase 1 (NAPLS-1), of whom 96 were reassessed at 12 …
The Relationship Between Fasting Serum Glucose And Cerebral Glucose Metabolism In Late-Life Depression And Normal Aging, C. M. Marano, C. I. Workman, C. H. Lyman, E. Kramer, C. R. Hermann, Y. L. Ma, V. Dhawan, T. Chaly, D. Eidelberg, G. S. Smith
The Relationship Between Fasting Serum Glucose And Cerebral Glucose Metabolism In Late-Life Depression And Normal Aging, C. M. Marano, C. I. Workman, C. H. Lyman, E. Kramer, C. R. Hermann, Y. L. Ma, V. Dhawan, T. Chaly, D. Eidelberg, G. S. Smith
Journal Articles
Evidence exists for late-life depression (LLD) as both a prodrome of and risk factor for Alzheimer's disease (AD). The underlying neurobiological mechanisms are poorly understood. Impaired peripheral glucose metabolism may explain the association between depression and AD given the connection between type 2 diabetes mellitus with both depression and AD. Positron emission tomography (PET) measures of cerebral glucose metabolism are sensitive to detecting changes in neural circuitry in LLD and AD. Fasting serum glucose (FSG) in non-diabetic young (YC; n=20) and elderly controls (EC; n=12) and LLD patients (n = 16) was correlated with PET scans of cerebral glucose metabolism …
Copy Number Variation In Obsessive-Compulsive Disorder And Tourette Syndrome: A Cross-Disorder Study, L. M. Mcgrath, D. M. Yu, C. Marshall, L. K. Davis, B. Thiruvahindrapuram, B. B. Li, C. Cappi, R. D. Bruun, Cathy Budman, J. M. Scharf, +112 Additional Authors
Copy Number Variation In Obsessive-Compulsive Disorder And Tourette Syndrome: A Cross-Disorder Study, L. M. Mcgrath, D. M. Yu, C. Marshall, L. K. Davis, B. Thiruvahindrapuram, B. B. Li, C. Cappi, R. D. Bruun, Cathy Budman, J. M. Scharf, +112 Additional Authors
Journal Articles
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 (
Excess Of Homozygosity In The Major Histocompatibility Complex In Schizophrenia, S. Mukherjee, S. Guha, M. Ikeda, N. Iwata, Anil Malhotra, I. Pe'er, A. Darvasi, T. Lencz
Excess Of Homozygosity In The Major Histocompatibility Complex In Schizophrenia, S. Mukherjee, S. Guha, M. Ikeda, N. Iwata, Anil Malhotra, I. Pe'er, A. Darvasi, T. Lencz
Journal Articles
Genome-wide association studies (GWAS) in schizophrenia have focused on additive allelic effects to identify disease risk loci. In order to examine potential recessive effects, we applied a novel approach to identify regions of excess homozygosity in an ethnically homogenous cohort: 904 schizophrenia cases and 1640 controls drawn from the Ashkenazi Jewish (AJ) population. Genome-wide examination of runs of homozygosity identified an excess in cases localized to the major histocompatibility complex (MHC). To refine this signal, we used the recently developed GERMLINE algorithm to identify chromosomal segments shared identical-by-descent (IBD) and compared homozygosity at such segments in cases and controls. We …
Matrics Cognitive Consensus Battery (Mccb) Performance In Children, Adolescents, And Young Adults, G. C. Nitzburg, P. Derosse, K. E. Burdick, B. D. Peters, C. B. Gopin, Anil Malhotra
Matrics Cognitive Consensus Battery (Mccb) Performance In Children, Adolescents, And Young Adults, G. C. Nitzburg, P. Derosse, K. E. Burdick, B. D. Peters, C. B. Gopin, Anil Malhotra
Journal Articles
Background: Neurodevelopmental models of schizophrenia suggest that cognitive deficits may be observed during childhood and adolescence, long before the onset of psychotic symptoms. Elucidating the trajectory of normal cognitive development during childhood and adolescence may therefore provide a basis for identifying specific abnormalities related to the development of schizophrenia. The MATRICS Consensus Cognitive Battery (MCCB), which was designed for use in clinical trials targeting cognitive deficits most common in schizophrenia, may provide a mechanism to understand this trajectory. To date, however, there is no performance data for the MCCB in healthy children and adolescents. The present study sought to establish …