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Author Goncalves, P.B.; Hallal, P.C.; Hino, A.A.F.; Reis, R.S.
Title Individual and environmental correlates of objectively measured physical activity and sedentary time in adults from Curitiba, Brazil Type Journal Article
Year 2017 Publication International Journal of Public Health Abbreviated Journal Int J Public Health
Volume Issue Pages
Keywords Accelerometry; Adults; Environmental correlates; Individual correlates; Physical activity; Sedentary time
Abstract OBJECTIVES: This study assessed the association of individual and neighborhood environment characteristics and objectively measured physical activity (PA) and sedentary time (ST) in adults from Curitiba, Brazil. METHODS: A population-based cross-sectional study was conducted through face-to-face household interviews in 2010. The analytic sample included 305 adults aged 20-65 years recruited from 32 census tracts selected according to neighborhood walkability and socioeconomic status. Individual and environmental PA correlates were evaluated through standardized and valid self-reported measures, including the Neighborhood Environment Walkability Scale. Minutes per week of PA and ST were assessed through accelerometry. Multi-level regression models were used in the analyses. RESULTS: After adjusting for confounders the strongest individual and environmental correlates associated with ST was residential density (B = 0.14; p = 0.008), light-intensity PA was being a father/mother (B = 35.71; p = 0.025) and moderate-to-vigorous PA was sex (B = 0.91; p < 0.001) and number of cars (one car, B = -1.05; two cars, B = -1.14; p < 0.001). CONCLUSIONS: The associations found with individual and environmental correlates varied accordingly across all outcomes. Future changes in policies and infrastructure should consider the social context of the community and improvements to promote a safer environment in the neighborhood.
Address (down) Prevention Research Center, Brown School, Washington University in St. Louis, St. Louis, MO, USA
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1661-8556 ISBN Medium
Area Expedition Conference
Notes PMID:28717827 Approved no
Call Number ref @ user @ Serial 97632
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Author Goncalves, P.B.; Hallal, P.C.; Hino, A.A.F.; Reis, R.S.
Title Individual and environmental correlates of objectively measured physical activity and sedentary time in adults from Curitiba, Brazil Type Journal Article
Year 2017 Publication International Journal of Public Health Abbreviated Journal Int J Public Health
Volume Issue Pages
Keywords Accelerometry; Adults; Environmental correlates; Individual correlates; Physical activity; Sedentary time
Abstract OBJECTIVES: This study assessed the association of individual and neighborhood environment characteristics and objectively measured physical activity (PA) and sedentary time (ST) in adults from Curitiba, Brazil. METHODS: A population-based cross-sectional study was conducted through face-to-face household interviews in 2010. The analytic sample included 305 adults aged 20-65 years recruited from 32 census tracts selected according to neighborhood walkability and socioeconomic status. Individual and environmental PA correlates were evaluated through standardized and valid self-reported measures, including the Neighborhood Environment Walkability Scale. Minutes per week of PA and ST were assessed through accelerometry. Multi-level regression models were used in the analyses. RESULTS: After adjusting for confounders the strongest individual and environmental correlates associated with ST was residential density (B = 0.14; p = 0.008), light-intensity PA was being a father/mother (B = 35.71; p = 0.025) and moderate-to-vigorous PA was sex (B = 0.91; p < 0.001) and number of cars (one car, B = -1.05; two cars, B = -1.14; p < 0.001). CONCLUSIONS: The associations found with individual and environmental correlates varied accordingly across all outcomes. Future changes in policies and infrastructure should consider the social context of the community and improvements to promote a safer environment in the neighborhood.
Address (down) Prevention Research Center, Brown School, Washington University in St. Louis, St. Louis, MO, USA
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1661-8556 ISBN Medium
Area Expedition Conference
Notes PMID:28717827 Approved no
Call Number ref @ user @ Serial 98014
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Author Coll, C. de V.N.; Domingues, M.R.; Hallal, P.C.; da Silva, I.C.M.; Bassani, D.G.; Matijasevich, A.; Barros, A.; Santos, I.S.; Bertoldi, A.D.
Title Changes in leisure-time physical activity among Brazilian pregnant women: comparison between two birth cohort studies (2004 – 2015) Type Journal Article
Year 2017 Publication BMC Public Health Abbreviated Journal BMC Public Health
Volume 17 Issue 1 Pages 119
Keywords Adult; Body Mass Index; Brazil; Cohort Studies; *Exercise; Female; Humans; *Leisure Activities; Maternal Age; Mothers/*statistics & numerical data; Obesity/complications; Parity; Pregnancy; Pregnancy Complications/etiology/*prevention & control; Pregnancy Trimesters/physiology; Time Factors; Young Adult; Birth cohort studies; Exercise; Motor activity; Physical activity; Pregnancy; Recommendations; Surveillance
Abstract BACKGROUND: Low levels of leisure-time physical activity (LTPA) during pregnancy have been shown in studies conducted worldwide. Surveillance is extremely important to monitor the progress of physical activity patterns over time and set goals for effective interventions to decrease inactivity among pregnant women. The aim of this study was to evaluate time changes in LTPA among Brazilian pregnant women in an 11-year period (2004-2015) by comparing data from two birth cohort studies. METHODS: Two population-based birth cohort studies were carried out in the city of Pelotas, southern Brazil, in 2004 and 2015. A total of 4244 and 4271 mothers were interviewed after delivery. Weekly frequency and duration of each session of LTPA in a typical week were reported for the pre-pregnancy period and for each trimester of pregnancy. Trends in both recommended LTPA (>/=150 min/week) and any LTPA (regardless of weekly amount) were analysed overtime. Changes were also calculated separately for subgroups of maternal age, schooling, family income, parity, pre-pregnancy body mass index and pre-pregnancy LTPA. RESULTS: The proportion of women engaged in recommended levels of LTPA pre-pregnancy increased from 11.2% (95%CI 10.0-12.2) in 2004 to 15.8% (95%CI 14.6-16.9) in 2015. During pregnancy, no changes were observed over the period for the first (10.6 to 10.9%) and second (8.7 to 7.9%) trimesters, whereas there was a decrease from 3.4% (95%CI 2.9-4.0) to 2.4% (95%CI 1.9-2.8) in the last trimester. Major decreases in LTPA in the last trimester were observed among women who were younger, with intermediate to high income, high schooling, primiparous, pre-pregnancy obese and, engaged in LTPA before pregnancy. Changes in any LTPA practice followed the same patterns described for recommended LTPA. CONCLUSIONS: Despite the increase in the proportion of women engaged in LTPA before pregnancy between 2004 and 2005, LTPA levels remained stable during the first and second trimesters of pregnancy and declined during the third gestational trimester over the period. Interventions to encourage the maintenance of LTPA practice throughout pregnancy are urgently needed.
Address (down) Postgraduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1471-2458 ISBN Medium
Area Expedition Conference
Notes PMID:28122524 Approved no
Call Number ref @ user @ Serial 98029
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Author Emery, I.F.; Gopalan, A.; Wood, S.; Chow, K.-H.; Battelli, C.; George, J.; Blaszyk, H.; Florman, J.; Yun, K.
Title Expression and function of ABCG2 and XIAP in glioblastomas Type Journal Article
Year 2017 Publication Journal of Neuro-Oncology Abbreviated Journal J Neurooncol
Volume 133 Issue 1 Pages 47-57
Keywords Abcg2; Glioblastoma; Glioma stem cells; Ko143; Xiap
Abstract Despite multimodal treatment that includes surgery, radiation and chemotherapy, virtually all glioblastomas (GBM) recur, indicating that these interventions are insufficient to eradicate all malignant cells. To identify potential new therapeutic targets in GBMs, we examined the expression and function of proteins that are associated with therapy resistance and cancer cell survival. We measured the expression of eight such proteins in 50 GBM samples by immunohistochemistry and analyzed patient survival. We report that GBM patients with high expression of ABCG2 (also called BCRP) or XIAP at the protein level had worse survival than those with low expression. The adjusted hazard ratio for ABCG2 was 2.35 and for XIAP was 2.65. Since glioma stem cells (GSCs) have been shown to be more resistant than bulk tumor cells to anti-cancer therapies and to express high levels of these proteins, we also sought to determine if ABCG2 and XIAP have functional roles in GSCs. We used small molecule inhibitors to treat patient-derived GBM tumorspheres in vitro and observed that inhibitors of ABCG2, Ko143 and fumitremorgin, significantly reduced self-renewal. These results suggest that ABCG2 and XIAP proteins may be useful indicators of patient survival and that inhibition of ABCG2 may be a promising therapeutic strategy in GBMs.
Address (down) Peak Center for Brain and Pituitary Tumors, Houston Methodist Research Institute, 6670 Bertner Ave, Houston, TX, 77030, USA. kyun@houstonmethodist.org
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0167-594X ISBN Medium
Area Expedition Conference
Notes PMID:28432589 Approved no
Call Number ref @ user @ Serial 96591
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Author Spencer, D.A.; Auffinger, B.M.; Murphy, J.P.; Muroski, M.E.; Qiao, J.; Gorind, Y.; Lesniak, M.S.
Title Hitting a Moving Target: Glioma Stem Cells Demand New Approaches in Glioblastoma Therapy Type Journal Article
Year 2017 Publication Current Cancer Drug Targets Abbreviated Journal Curr Cancer Drug Targets
Volume 17 Issue 3 Pages 236-254
Keywords Brain Neoplasms/drug therapy/pathology; Drug Resistance, Neoplasm/drug effects; Glioblastoma/*drug therapy/pathology; Glioma/drug therapy/*pathology; Humans; Molecular Targeted Therapy/*methods; Neoplastic Stem Cells/drug effects/*pathology/radiation effects; Chemotherapy; drug targets; glioblastoma multiforme; glioma stem cells; niches; recurrence; resistance
Abstract BACKGROUND: Glioblastoma multiforme (GBM) continues to devastate patients and outfox investigators and clinicians despite the preponderance of research directed at its biology, pathogenesis and therapeutic advances. GBM routinely outlasts multidisciplinary treatment protocols, almost inevitably recurring in a yet more aggressive and resistant form with distinct genetic differences from the original tumor. Attempts to glean further insight into GBM point increasingly toward a subpopulation of cells with a stem-like phenotype. These cancer stem cells, similar to those now described in a variety of malignancies, are capable of tumorigenesis from a population of susceptible cells. CONCLUSIONS: Glioma stem cells have thus become a prevalent focus in GBM research for their presumed role in development, maintenance and recurrence of tumors. Glioma stem cells infiltrate the white matter surrounding tumors and often evade resection. They are uniquely suited both biochemically and environmentally to resist the best therapy currently available, intrinsically and efficiently resistant to standard chemo- and radiotherapy. These stem cells create an extremely heterogenous tumor that to date has had an answer for every therapeutic question, with continued dismal patient survival. Targeting this population of glioma stem cells may hold the long-awaited key to durable therapeutic efficacy in GBM.
Address (down) Neuro-Oncology Laboratory, Department of Neurosurgery, Northwestern University, 676 N. St. Clair Street, Suite 2210, Chicago, IL60611, United States
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1568-0096 ISBN Medium
Area Expedition Conference
Notes PMID:27993114 Approved no
Call Number ref @ user @ Serial 96616
Permanent link to this record