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Despite its high prevalence, very little is known regarding genetic predisposition to prostate cancer. A genome-wide scan performed in 66 high-risk prostate cancer families has provided evidence of linkage to the long arm of chromosome 1 (1q24-25). Analysis of an additional set of 25 North American and Swedish families with markers in this region resulted(More)
A genome scan of approximately 12-cM initial resolution was done on 50 of a set of 51 carefully ascertained unilineal multiplex families segregating the bipolar affective disorder phenotype. In addition to standard multipoint linkage analysis methods, a simultaneous-search algorithm was applied in an attempt to surmount the problem of genetic heterogeneity.(More)
OBJECTIVE To explore the impact of apoE-4 on Alzheimer's disease (AD) and its age at onset. DESIGN A genetic linkage study using affected relative pairs, predominantly siblings. SETTING Three academic medical centers ascertained subjects from memory disorder clinics, nursing homes, and the local community. SUBJECTS 310 families including 679 subjects(More)
OBJECTIVE The purpose of this study was to compare the pattern of affective psychopathology in families ascertained for genetic linkage studies through bipolar I probands to that in families ascertained through bipolar II probands. METHOD All available first-degree relatives (N = 266) of 48 bipolar I and eight bipolar II probands were interviewed with the(More)
Asthma is a common disease with a complex risk architecture including both genetic and environmental factors. We performed a meta-analysis of North American genome-wide association studies of asthma in 5,416 individuals with asthma (cases) including individuals of European American, African American or African Caribbean, and Latino ancestry, with(More)
RATIONALE The Severe Asthma Research Program cohort includes subjects with persistent asthma who have undergone detailed phenotypic characterization. Previous univariate methods compared features of mild, moderate, and severe asthma. OBJECTIVES To identify novel asthma phenotypes using an unsupervised hierarchical cluster analysis. METHODS Reduction of(More)
Verbal learning and memory were studied in 196 healthy men and women aged 40 to 89. The Rey Auditory Verbal Learning Task (RAVLT), a 15-word list, was presented over five trials followed by free recall after each trial. A recognition trial of 50 words subsequently was administered. A stepwise regression that examined the contributions of age, sex, and(More)
OBJECTIVE The authors analyzed data from a family sample ascertained for a genetic linkage study of bipolar disorder to address the following questions: Do the major clinical subtypes of familial affective disorder have distinct distributions of age at onset? What factors other than clinical subtype affect these distributions? After controlling for these(More)
Asthma and atopy are related conditions that may share similar genetic susceptibility. Linkage studies have identified a region on chromosome 5q that contains biologic candidates for both asthma and atopy phenotypes, including several proinflammatory cytokines. Interleukin (IL)-13, one of the candidate genes in the region, is directly involved in the(More)
BACKGROUND The consistent finding of a genetic susceptibility to prostate cancer suggests that there are germline sequence variants predisposing individuals to this disease. These variants could be useful in screening and treatment. METHODS We performed an exploratory genome-wide association scan in 498 men with aggressive prostate cancer and 494 control(More)