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Physical Activity And Stroke Risk: A Meta-Analysis, Chong Do Lee, Aaron R. Folsom, Steven N. Blair

Faculty Publications

Background and Purpose - Whether physical activity reduces stroke risk remains controversial. We used a meta-analysis to examine the overall association between physical activity or cardiorespiratory fitness and stroke incidence or mortality.

Methods - We searched MEDLINE from 1966 to 2002 and identified 23 studies (18 cohort and 5 case-control) that met inclusion criteria. We estimated the overall relative risk (RR) of stroke incidence or mortality for highly and moderately active individuals versus individuals with low levels of activity using the general variance-based method.

Results - The meta-analysis documented that there was a reduction in stroke risk for active or …

Transmission Of Mycobacterium Tuberculosis Associated With Failed Completion Of Treatment For Latent Tuberculosis Infection - Chickasaw County, Mississippi, June 1999-March 2002, T. Chamblee, D. Hartley, M. Holcombe, K. Parham, P. Upchurch, R. M. Webb, Alyssa G. Robillard, L. Diem, B. Metchock, N. Deluca, P. D. Mcelroy, T. Navin, W. Walton, P. K. Dewan

Faculty Publications

During June 1999-March 2002, a total of 16 tuberculosis (TB) cases were reported from Chickasaw County, Mississippi (2000 population: 19,440), corresponding to annual TB incidences of 20.5-27.6 cases per 100,000 population. In comparison, annual TB incidences for Mississippi during the same period decreased from 7.8 to 5.4 cases per 100,000 population. This report summarizes the results of an investigation of the patients and their contacts and demonstrates the need for strategies to increase the proportion of infection contacts that successfully complete treatment for latent TB infection (LTBI).

Utilization Of Algal And Bacterial Extracellular Polymeric Secretions (Eps) By The Deposit-Feeding Brittlestar Amphipholis Gracillima (Echinodermata), D. L. Hoskins, S. E. Stancyk, Alan W. Decho

Faculty Publications

Like many deposit-feeding organisms, the burrowing brittlestar Amphipholis gracillima feeds on particulate organic matter in surface sediments. Microbial exopolymeric secretions (EPS) are carbohydrate-enriched polymers produced by microalgae and bacteria that bind aggregates and form dense biofilms near the sediment-water interface. EPS are assimilable by some benthic infauna and may be utilized as a significant carbon source. EPS are absorbed by some deposit-feeders, including a holothurian, and may be supplemental sources of nutrition. The burrowing brittlestar A. gracillima is a deposit-feeder that was used in a mass balance approach to model the incorporation of radiolabeled EPS by bottom feeders. Brittlestars were …