Learn More
Among mammals, genetic recombination occurs at highly delimited sites known as recombination hotspots. They are typically 1-2 kb long and vary as much as a 1,000-fold or more in recombination activity. Although much is known about the molecular details of the recombination process itself, the factors determining the location and relative activity of(More)
OBJECTIVES First, to determine if childhood experiences of abuse have an impact on internalizing disorders (e.g., anxiety and depressive disorders) among older adults. Second, we wish to determine if self-esteem plays a role in explaining the relationship between abuse and internalizing disorders. METHOD First, we conducted an analysis on a population(More)
OBJECTIVES Studies suggest early-onset depression (EOD) is associated with a more severe course of the depressive disorder, while late-onset depression (LOD) is associated with more cognitive and neuroimaging changes. This study examined if older adults with EOD, compared with those with LOD, would exhibit more severe symptoms of depression and, consistent(More)
OBJECTIVES The apolipoproteinE epsilon4 (APOE epsilon4) allele and a history of depression are each separate risk factors for cognitive decline (CD). However, little research has investigated whether a history of depression influences the relationship between APOE epsilon4 and CD. The present study examined whether depressive symptoms had greater influence(More)
OBJECTIVE To examine headache trajectories among persons with mild traumatic brain injury (MTBI) in the year after injury and the relation of headache trajectory to posttraumatic stress disorder (PTSD) at 1 year postinjury. DESIGN Prospective, longitudinal study. SETTING Participants were recruited through a university medical center and participated in(More)
BACKGROUND Most, but not all, past studies have suggested that the APOE genotype is a risk factor for dementia in whites but not African Americans. This paper first describes explanations as to why some studies may have failed to detect the effect of APOE genotype in African American samples. Briefly, studies have been limited by various methodological(More)
OBJECTIVES The atypical depression (AD) subtype has rarely been examined in older patients. However, younger AD patients have been characterized as having more severe and chronic symptoms of depression compared with non-AD patients. DESIGN Secondary data analysis by using analyses of variance and Growth Curve Modeling. SETTING Clinical Research Center(More)
To determine the effects of prescribed training programs on 5 physical fitness test items, each of 50 high school boys participated for 10 wk. in one of three programs (wrestling, softball, and plyometrics; weight training; and weight training and plyometrics). (a) On the sit-ups, 40-yd. dash, vertical jump, and pull-ups, each group improved significantly(More)
OBJECTIVE The aim of this study was to develop and test a model of depression, hippocampal changes, and cognitive decline. METHOD Participants were 248 community-dwelling, depressed patients and 147 healthy, non-depressed individuals 60 years and older. Participants received a structured interview assessing current depressive symptoms and past depressive(More)
OBJECTIVE the apolipoprotein E epsilon-4 (APOE [small element of] 4) allele and depression are independently associated with increased risk for cognitive decline (CD). The authors have reported that depressed elders with an APOE [small element of]4 allele had greater CD compared with depressed elders without the allele. Depression affects the hippocampus,(More)