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1.
Psychiatr Serv ; 62(1): 47-53, 2011 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21209299

RESUMO

OBJECTIVE: A 2004 consensus statement by the American Psychiatric Association and other groups noted that metabolic side effects of second-generation antipsychotics require monitoring. To reduce risk, prescribers may consider factors differentially associated with development of metabolic abnormalities, such as age, gender, and race-ethnicity. As part of a study of older patients with schizophrenia (50-102 years), this study evaluated factors associated with antipsychotic switches and switches that incurred a greater or lesser metabolic risk. METHODS: Administrative data were analyzed for a national cohort of 16,103 Veterans Health Administration patients with schizophrenia receiving second-generation antipsychotics. Multinomial logistic regression predicted the likelihood of switches from 2002 to 2003 and again from 2004 to 2005. RESULTS: At baseline nearly half the patients (45%) had a diagnosis of hypertension, a third (34%) had dyslipidemia, and 15% had a diagnosis of obesity. In both periods diabetes was associated with switches to lower-risk antipsychotics, and older patients were likely to experience neutral or no switches. Women were more likely to experience switches to higher-risk antipsychotics in 2004-2005. CONCLUSIONS: General medical conditions potentially associated with antipsychotic-related metabolic concerns were common; however, half of these patients were prescribed medication that made them liable to developing metabolic problems. Modest evidence suggests that metabolic considerations became a higher priority during the study. Future research should investigate the differential impact of antipsychotics on metabolic dysregulation for women and elderly patients. Findings underscore the need to monitor metabolic parameters of older patients taking antipsychotics.


Assuntos
Antipsicóticos/efeitos adversos , Substituição de Medicamentos , Doenças Metabólicas/prevenção & controle , Padrões de Prática Médica , Esquizofrenia/tratamento farmacológico , Veteranos/psicologia , Idoso , Idoso de 80 Anos ou mais , Antipsicóticos/administração & dosagem , Comorbidade , Feminino , Humanos , Modelos Logísticos , Masculino , Doenças Metabólicas/induzido quimicamente , Doenças Metabólicas/epidemiologia , Pessoa de Meia-Idade , Análise Multivariada , Estudos Retrospectivos , Esquizofrenia/epidemiologia , Estados Unidos/epidemiologia
2.
Am J Psychiatry ; 166(4): 442-9, 2009 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-19188284

RESUMO

OBJECTIVE: The present study investigated a new set of families of Latin American ancestry in order to detect the location of genes predisposing to schizophrenia and related psychotic disorders. METHOD: A genome-wide scan was performed for 175 newly recruited families with at least two siblings suffering from a psychotic disorder. Best-estimate consensus procedures were used to arrive at diagnoses, and nonparametric allele-sharing statistics were calculated to detect linkage. RESULTS: Genome-wide significant evidence for linkage for the phenotype of DSM-IV schizophrenia or schizoaffective disorder was found in a region on chromosome 17q21 (lod score, 3.33). A region on chromosome 15q22-23 showed suggestive evidence of linkage with this same phenotype (lod score, 2.11). Analyses using a broader model (any psychosis) yielded evidence of suggestive linkage for the 17q21 region only, and no region achieved genome-wide significance of linkage. CONCLUSIONS: The new set of 175 families of Mexican and Central American ancestry delineates two new loci likely to harbor predisposition genes for schizophrenia and schizoaffective disorder. The region with the strongest support for linkage in this sample, 17q21, has been implicated in meta-analyses of schizophrenia genome screens, but the authors found no previous reports of it as a locus for schizophrenia in specific population- or family-based studies, and it may represent the location of a schizophrenia predisposition gene (or genes) of special relevance in Mexican and Central American populations.


Assuntos
Mapeamento Cromossômico , Cromossomos Humanos Par 17/genética , Hispânico ou Latino/genética , Americanos Mexicanos/genética , Transtornos Psicóticos/genética , Esquizofrenia/genética , Ligação Genética/genética , Predisposição Genética para Doença/genética , Genótipo , Hispânico ou Latino/psicologia , Humanos , Escore Lod , Americanos Mexicanos/psicologia , Fenótipo , Transtornos Psicóticos/etnologia , Esquizofrenia/etnologia , Sudoeste dos Estados Unidos
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