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Morningstar B, Clayborne Z, Wong SL, Roberts KC, Prince SA, Gariépy G, Goldfield GS, Janssen I, Lang JJ. The association between social media use and physical activity among Canadian adolescents: a Health Behaviour in School-aged Children (HBSC) study. Can J Public Health 2023; 114:642-650. [PMID: 36920659 PMCID: PMC10349007 DOI: 10.17269/s41997-023-00754-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 02/07/2023] [Indexed: 03/16/2023]
Abstract
OBJECTIVE To determine the association between social media use (SMU) and physical activity (PA) among Canadian adolescents. METHODS We used data from 12,358 participants in grades 6 to 10 who responded to the Canadian component of the 2017/2018 Health Behaviour in School-aged Children (HBSC) survey. Social media intensity and problematic SMU were assessed using a 4-point mutually exclusive scale that contained three categories based on intensity (non-active, active, and intense SMU) and one category based on the presence of addiction-like symptoms irrespective of intensity (problematic SMU). PA was assessed for five domains (i.e., school curriculum, organized sport, exercise, outdoor play, and active transport) and dichotomized using the first quartile to represent high PA engagement in each domain. Meeting PA recommendation of 60 min per day of moderate-to-vigorous PA was calculated using the sum of the five domains. Logistic regression models were used to assess the association between SMU and PA, with active SMU used as the reference group for all models. RESULTS Non-active SMU was associated with lower odds of meeting the daily PA recommendations and of high engagement in all five domains of PA when compared to active SMU. Intense SMU was associated with higher odds of meeting the daily PA recommendations. Problematic SMU was not associated with meeting daily PA recommendations, but it was significantly associated with lower odds of high PA engagement in the exercise domain. CONCLUSION The findings of this study suggest that non-active SMU was significantly associated with lower PA levels. Problematic SMU was only significantly associated with lower PA levels in the exercise domain. Intense SMU was associated with higher odds of meeting the PA recommendation.
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Affiliation(s)
- Brandon Morningstar
- Centre for Surveillance and Applied Research, Public Health Agency of Canada, 785 Carling Ave, Ottawa, ON, K1A 0K9, Canada
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Zahra Clayborne
- Centre for Surveillance and Applied Research, Public Health Agency of Canada, 785 Carling Ave, Ottawa, ON, K1A 0K9, Canada
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Suzy L Wong
- Centre for Health Promotion, Public Health Agency of Canada, Ottawa, ON, Canada
| | - Karen C Roberts
- Centre for Surveillance and Applied Research, Public Health Agency of Canada, 785 Carling Ave, Ottawa, ON, K1A 0K9, Canada
| | - Stephanie A Prince
- Centre for Surveillance and Applied Research, Public Health Agency of Canada, 785 Carling Ave, Ottawa, ON, K1A 0K9, Canada
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Geneviève Gariépy
- Centre for Surveillance and Applied Research, Public Health Agency of Canada, 785 Carling Ave, Ottawa, ON, K1A 0K9, Canada
- School of Public Health, University of Montreal, Montreal, QC, Canada
| | - Gary S Goldfield
- Healthy Active Living and Obesity Research Group, Children's Hospital of Eastern Ontario Research Institute, Ottawa, ON, Canada
| | - Ian Janssen
- School of Kinesiology and Health Studies, Department of Public Health Sciences, Queen's University, Kingston, ON, Canada
| | - Justin J Lang
- Centre for Surveillance and Applied Research, Public Health Agency of Canada, 785 Carling Ave, Ottawa, ON, K1A 0K9, Canada.
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada.
- Healthy Active Living and Obesity Research Group, Children's Hospital of Eastern Ontario Research Institute, Ottawa, ON, Canada.
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Philpott D, Gomis S, Wang H, Atwal R, Kelil A, Sack T, Morningstar B, Burnie C, Sargent EH, Angers S, Sidhu S, Kelley SO. Rapid On-Cell Selection of High-Performance Human Antibodies. ACS Cent Sci 2022; 8:102-109. [PMID: 35106377 PMCID: PMC8796304 DOI: 10.1021/acscentsci.1c01205] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Indexed: 06/14/2023]
Abstract
Phage display is a critical tool for developing antibodies. However, existing approaches require many time-consuming rounds of biopanning and screening of potential candidates due to a high rate of failure during validation. Herein, we present a rapid on-cell phage display platform which recapitulates the complex in vivo binding environment to produce high-performance human antibodies in a short amount of time. Selection is performed in a highly stringent heterogeneous mixture of cells to quickly remove nonspecific binders. A microfluidic platform then separates antigen-presenting cells with high throughput and specificity. An unsupervised machine learning algorithm analyzes sequences of phage from all pools to identify the structural trends that contribute to affinity and proposes ideal candidates for validation. In a proof-of-concept screen against human Frizzled-7, a key ligand in the Wnt signaling pathway, antibodies with picomolar affinity were discovered in two rounds of selection that outperformed current gold-standard reagents. This approach, termed μCellect, is low cost, high throughput, and compatible with a wide variety of cell types, enabling widespread adoption for antibody development.
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Affiliation(s)
- David
N. Philpott
- Edward
S. Rogers Sr. Department of Electrical & Computer Engineering, University of Toronto, Toronto, Ontario M5S 3G8, Canada
| | - Surath Gomis
- Edward
S. Rogers Sr. Department of Electrical & Computer Engineering, University of Toronto, Toronto, Ontario M5S 3G8, Canada
| | - Hansen Wang
- Department
of Pharmaceutical Sciences, University of
Toronto, Toronto, Ontario M5S 3M2, Canada
| | - Randy Atwal
- Department
of Pharmaceutical Sciences, University of
Toronto, Toronto, Ontario M5S 3M2, Canada
| | - Abdellali Kelil
- Donnelly
Centre, University of Toronto, Toronto, Ontario M5S 3E1, Canada
| | - Tanja Sack
- Department
of Pharmaceutical Sciences, University of
Toronto, Toronto, Ontario M5S 3M2, Canada
| | - Brandon Morningstar
- Department
of Pharmaceutical Sciences, University of
Toronto, Toronto, Ontario M5S 3M2, Canada
| | - Chris Burnie
- Department
of Pharmaceutical Sciences, University of
Toronto, Toronto, Ontario M5S 3M2, Canada
| | - Edward H. Sargent
- Edward
S. Rogers Sr. Department of Electrical & Computer Engineering, University of Toronto, Toronto, Ontario M5S 3G8, Canada
| | - Stephane Angers
- Department
of Pharmaceutical Sciences, University of
Toronto, Toronto, Ontario M5S 3M2, Canada
| | - Sachdev Sidhu
- Donnelly
Centre, University of Toronto, Toronto, Ontario M5S 3E1, Canada
| | - Shana O. Kelley
- Department
of Pharmaceutical Sciences, University of
Toronto, Toronto, Ontario M5S 3M2, Canada
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