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Wu J, Olson JL, Brunke-Reese D, Lagoa CM, Conroy DE. Wearable device adherence among insufficiently-active young adults is independent of identity and motivation for physical activity. J Behav Med 2024; 47:197-206. [PMID: 37642938 PMCID: PMC10902189 DOI: 10.1007/s10865-023-00444-4] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 08/09/2023] [Indexed: 08/31/2023]
Abstract
Wearable devices are increasingly being integrated to improve prevention, chronic disease management and rehabilitation. Inferences about individual differences in device-measured physical activity depends on devices being worn long enough to obtain representative samples of behavior. Little is known about how psychological factors are associated with device wear time adherence. This study evaluated associations between identity, behavioral regulations, and device wear adherence during an ambulatory monitoring period. Young adults who reported insufficient physical activity (N = 271) were recruited for two studies before and after the SARS-COVID-19 pandemic declaration. Participants completed a baseline assessment and wore an Actigraph GT3X + accelerometer on their waist for seven consecutive days. Multiple linear regression indicated that wear time was positively associated with age, negatively associated with integrated regulation for physical activity, and greater after (versus before) the pandemic declaration. Overall, the model accounted for limited variance in device wear time. Exercise identity and exercise motivation were not associated with young adults' adherence to wearing the physical activity monitors. Researchers and clinicians can use wearable devices with young adults with minimal concern about systematic motivational biases impacting adherence to device wear.
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Affiliation(s)
- Jingchuan Wu
- Department of Kinesiology, The Pennsylvania State University, University Park, Pennsylvania, PA, USA
| | - Jenny L Olson
- Department of Kinesiology, The Pennsylvania State University, University Park, Pennsylvania, PA, USA
- Department of Public Health Sciences, The Pennsylvania State University, Hershey, PA, USA
| | - Deborah Brunke-Reese
- Department of Kinesiology, The Pennsylvania State University, University Park, Pennsylvania, PA, USA
| | - Constantino M Lagoa
- School of Electrical Engineering & Computer Science, The Pennsylvania State University, University Park, Pennsylvania, PA, USA
| | - David E Conroy
- Department of Kinesiology, The Pennsylvania State University, University Park, Pennsylvania, PA, USA.
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Lee AM, Hojjatinia S, Courtney JB, Brunke-Reese D, Hojjatinia S, Lagoa CM, Conroy DE. Motivational Message Framing Effects on Physical Activity Dynamics in a Digital Messaging Intervention: Secondary Analysis. JMIR Form Res 2023; 7:e41414. [PMID: 37083710 PMCID: PMC10163402 DOI: 10.2196/41414] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 11/09/2022] [Accepted: 03/21/2023] [Indexed: 04/22/2023] Open
Abstract
BACKGROUND Digital smartphone messaging can be used to promote physical activity to large populations with limited cost. It is not clear which psychological constructs should be targeted by digital messages to promote physical activity. This gap presents a challenge for developing optimal content for digital messaging interventions. OBJECTIVE The aim of this study is to compare affectively framed and social cognitively framed messages on subsequent changes in physical activity using dynamical modeling techniques. METHODS We conducted a secondary analysis of data collected from a digital messaging intervention in insufficiently active young adults (18-29 years) recruited between April 2019 and July 2020 who wore a Fitbit smartwatch for 6 months. Participants received 0 to 6 messages at random per day across the intervention period. Messages were drawn from 3 content libraries: affectively framed, social cognitively framed, or inspirational quotes. Person-specific dynamical models were identified, and model features of impulse response and cumulative step response were extracted for comparison. Two-way repeated-measures ANOVAs evaluated the main effects and interaction of message type and day type on model features. This early-phase work with novel dynamic features may have been underpowered to detect differences between message types so results were interpreted descriptively. RESULTS Messages (n=20,689) were paired with valid physical activity monitoring data from 45 participants for analysis. Received messages were distributed as 40% affective (8299/20,689 messages), 39% social-cognitive (8187/20,689 messages), and 20% inspirational quotes (4219/20,689 messages). There were no statistically significant main effects for message type when evaluating the steady state of step responses. Participants demonstrated heterogeneity in intervention response: some had their strongest responses to affectively framed messages, some had their strongest responses to social cognitively framed messages, and some had their strongest responses to the inspirational quote messages. CONCLUSIONS No single type of digital message content universally promotes physical activity. Future work should evaluate the effects of multiple message types so that content can be continuously tuned based on person-specific responses to each message type.
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Affiliation(s)
- Alexandra M Lee
- The Pennsylvania State University, University Park, PA, United States
| | - Sahar Hojjatinia
- The Pennsylvania State University, University Park, PA, United States
| | | | | | - Sarah Hojjatinia
- The Pennsylvania State University, University Park, PA, United States
| | | | - David E Conroy
- The Pennsylvania State University, University Park, PA, United States
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Conroy DE, Wu J, Lee AM, Brunke-Reese D, Lagoa CM. Dose-response relations between the frequency of two types of momentary feedback prompts and daily physical activity. Health Psychol 2023; 42:151-160. [PMID: 36862471 PMCID: PMC10015600 DOI: 10.1037/hea0001271] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
OBJECTIVE Self-monitoring and behavioral feedback are widely used to help people monitor progress toward daily physical activity goals. Little information exists about the optimal dosing parameters for these techniques or if they are interchangeable in digital physical activity interventions. This study used a within-person experimental design to evaluate associations between the frequency of two different prompt types (one for each technique) and daily physical activity. METHOD Insufficiently active young adults were assigned monthly physical activity goals and wore smartwatches with activity trackers for 3 months. They received zero to six randomly selected and timed watch-based prompts each day, with individual prompts either providing behavioral feedback or prompting the participant to self-monitor. RESULTS Physical activity increased significantly over the 3-month period (step counts d = 1.03; moderate-to-vigorous physical activity duration d = 0.99). Mixed linear models revealed that daily step counts were positively associated with the frequency of daily self-monitoring prompts up to approximately three prompts/day (d = 0.22) after which additional prompts provided minimal or reduced benefit. Daily step counts were not associated with the frequency of behavioral feedback prompts. Daily moderate-to-vigorous physical activity was not associated with the frequency of either prompt. CONCLUSIONS Self-monitoring and behavioral feedback are not interchangeable behavior change techniques in digital physical activity interventions, and only self-monitoring prompts show signs of a dose-response association with physical activity volume. Activity trackers, such as smartwatches and mobile apps, should provide an option to replace behavioral feedback prompts with self-monitoring prompts to promote physical activity among insufficiently active young adults. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
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Affiliation(s)
- David E Conroy
- Department of Kinesiology, The Pennsylvania State University
| | - Jingchuan Wu
- Department of Kinesiology, The Pennsylvania State University
| | - Alexandra M Lee
- Department of Kinesiology, The Pennsylvania State University
| | | | - Constantino M Lagoa
- School of Electrical Engineering & Computer Science, The Pennsylvania State University
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Olson JL, Mama SK, Brunke-Reese D, Lagoa CM, Sciamanna CN, Conroy DE. Broad versus narrow bandwidth measures of experienced automaticity for physical activity. Psychol Health 2022:1-17. [PMID: 36384364 PMCID: PMC10188660 DOI: 10.1080/08870446.2022.2146690] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 06/14/2022] [Accepted: 09/21/2022] [Indexed: 11/18/2022]
Abstract
Objective: Physical activity is important for health, yet most young adults are insufficiently active. Physical activity is regulated in part, by habit, typically operationalised as automaticity. Little is known about the characteristics of automaticity, or whether broad bandwidth unidimensional measures of automaticity for physical activity are superior to narrower bandwidth multi- dimensional measures. Design: This secondary analysis (N = 238) investigated the nature of automaticity, and relations between the dimensions of automaticity, global automaticity, and physical activity.Main Outcome Measures: The structure of the Generic Multifaceted Automaticity Scale (GMAS) was examined by confirmatory factor analyses. Structural equation models were estimated to evaluate relations between automaticity (measured on the GMAS and the Self- Report Behavioral Automaticity Index, SRBAI) and device- measured activity.Results: The hypothesised 3- factor structure of the GMAS was rejected, in favour of a 2- factor solution. Lack of intention/control and efficiency were associated with global automaticity, but not physical activity. Global automaticity was associated with moderate to vigorous physical activity and daily steps, but not light physical activity.Conclusion: Multi- dimensional measures of automaticity may not provide a more nuanced understanding of automaticity when predicting overall physical activity.
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Affiliation(s)
- Jenny L. Olson
- Department of Kinesiology, The Pennsylvania State University, University Park, PA, USA
- College of Medicine, The Pennsylvania State University, Hershey, PA, USA
| | - Scherezade K. Mama
- MD Anderson Cancer Center, Department of Health Disparities Research, Houston, TX, USA
| | - Deborah Brunke-Reese
- Department of Kinesiology, The Pennsylvania State University, University Park, PA, USA
| | - Constantino M. Lagoa
- School of Electrical Engineering and Computer Science, The Pennsylvania State University, University Park, PA, USA
| | - Chris N. Sciamanna
- College of Medicine, The Pennsylvania State University, Hershey, PA, USA
| | - David E. Conroy
- Department of Kinesiology, The Pennsylvania State University, University Park, PA, USA
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Hojjatinia S, Lee AM, Hojjatinia S, Lagoa CM, Brunke-Reese D, Conroy DE. Physical Activity Dynamics During a Digital Messaging Intervention Changed After the Pandemic Declaration. Ann Behav Med 2022; 56:1188-1198. [PMID: 35972330 PMCID: PMC9384787 DOI: 10.1093/abm/kaac051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND The COVID-19 pandemic adversely impacted physical activity, but little is known about how contextual changes following the pandemic declaration impacted either the dynamics of people's physical activity or their responses to micro-interventions for promoting physical activity. PURPOSE This paper explored the effect of the COVID-19 pandemic on the dynamics of physical activity responses to digital message interventions. METHODS Insufficiently-active young adults (18-29 years; N = 22) were recruited from November 2019 to January 2020 and wore a Fitbit smartwatch for 6 months. They received 0-6 messages/day via smartphone app notifications, timed and selected at random from three content libraries (Move More, Sit Less, and Inspirational Quotes). System identification techniques from control systems engineering were used to identify person-specific dynamical models of physical activity in response to messages before and after the pandemic declaration on March 13, 2020. RESULTS Daily step counts decreased significantly following the pandemic declaration on weekdays (Cohen's d = -1.40) but not on weekends (d = -0.26). The mean overall speed of the response describing physical activity (dominant pole magnitude) did not change significantly on either weekdays (d = -0.18) or weekends (d = -0.21). In contrast, there was limited rank-order consistency in specific features of intervention responses from before to after the pandemic declaration. CONCLUSIONS Generalizing models of behavioral dynamics across dramatically different environmental contexts (and participants) may lead to flawed decision rules for just-in-time physical activity interventions. Periodic model-based adaptations to person-specific decision rules (i.e., continuous tuning interventions) for digital messages are recommended when contexts change.
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Affiliation(s)
- Sahar Hojjatinia
- School of Electrical Engineering and Computer Science, The Pennsylvania State University, University Park, PA, USA
| | - Alexandra M Lee
- Department of Kinesiology, The Pennsylvania State University, University Park, PA, USA
| | | | - Constantino M Lagoa
- School of Electrical Engineering and Computer Science, The Pennsylvania State University, University Park, PA, USA
| | - Deborah Brunke-Reese
- Department of Kinesiology, The Pennsylvania State University, University Park, PA, USA
| | - David E Conroy
- Department of Kinesiology, The Pennsylvania State University, University Park, PA, USA
- Department of Preventive Medicine, Northwestern University, Chicago, IL, USA
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Hojjatinia S, Hojjatinia S, Lagoa CM, Brunke-Reese D, Conroy DE. Person-specific dose-finding for a digital messaging intervention to promote physical activity. Health Psychol 2021; 40:502-512. [PMID: 34618498 DOI: 10.1037/hea0001117] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Digital messaging is an established method for promoting physical activity. Systematic approaches for dose-finding have not been widely used in behavioral intervention development. We apply system identification tools from control systems engineering to estimate dynamical models and inform decision rules for digital messaging intervention to promote physical activity. METHOD Insufficiently active emerging and young adults (n = 45) wore an activity monitor that recorded minute-level step counts and heart rate and received 0-6 digital messages daily on their smartphone for 6 months. Messages were drawn from 3 content libraries (move more, sit less, inspirational quotes). Location recordings via location services in the user's smartphone were used to lookup weather indices at the time and place of message delivery. Following system identification, responses to each message type were simulated under different conditions. Response features were extracted to summarize dynamic processes. RESULTS A generic model based on composite data was conservative and did not capture the heterogeneous responses evident in person-specific models. No messages were uniformly ineffective but responses to specific message content in different contexts varied between people. Exterior temperature at the time of message receipt moderated the size of some message effects. CONCLUSIONS A generic model of message effects on physical activity can provide the initial evidence for context-sensitive decision rules in a just-in-time adaptive intervention, but it is likely to be error-prone and inefficient. As individual data accumulates, person-specific models should be estimated to optimize treatment and evolve as people are exposed to new environments and accumulate new experiences. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
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Weikert AE, Pagoto SL, Handley E, Courtney JB, Brunke-Reese D, Conroy DE. Golfers' Interest in Multilevel Sun-Protection Strategies. Int J Environ Res Public Health 2021; 18:ijerph18147253. [PMID: 34299704 PMCID: PMC8305060 DOI: 10.3390/ijerph18147253] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 07/02/2021] [Accepted: 07/04/2021] [Indexed: 01/03/2023]
Abstract
Active adults accumulate more ultraviolet (UV) radiation exposure and are at greater risk of skin cancer than inactive adults. Golf is a popular sport that increases UV exposure because it is played outdoors in daylight. This study evaluated adult golfers’ interest in multilevel sun-protection strategies and characterized differences in interest as a function of golfer characteristics. Adult golfers (N = 347) completed a web survey to rate their interest in 20 sun-protection strategies. We estimated descriptive statistics and evaluated differences in interest as a function of demographics, perceived risk, sun-protective behavior, and golf exposure. Golfers reported the greatest interest in environmental supports for sun protection, but these ratings were driven by golfers who already perceived golf as a risk behavior and used sunscreen diligently. Vulnerable golfers—those with a golf-related sunburn in the past year or who spend more time golfing—expressed interest in a broader range of intervention components, including education, family support, and text messages. Multilevel skin cancer prevention interventions are needed for golfers. Intervention components of interest involved support and reminders, which suggests they are open to sun-safety behaviors but need help executing them.
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Affiliation(s)
- Amanda E. Weikert
- Department of Kinesiology, The Pennsylvania State University, University Park, PA 16802, USA; (A.E.W.); (J.B.C.); (D.B.-R.)
| | - Sherry L. Pagoto
- Department of Allied Health Sciences, University of Connecticut, Storrs, CT 06269, USA;
| | - Eric Handley
- Golf Teaching and Research Center, The Pennsylvania State University, University Park, PA 16082, USA;
| | - Jimikaye B. Courtney
- Department of Kinesiology, The Pennsylvania State University, University Park, PA 16802, USA; (A.E.W.); (J.B.C.); (D.B.-R.)
| | - Deborah Brunke-Reese
- Department of Kinesiology, The Pennsylvania State University, University Park, PA 16802, USA; (A.E.W.); (J.B.C.); (D.B.-R.)
| | - David E. Conroy
- Department of Kinesiology, The Pennsylvania State University, University Park, PA 16802, USA; (A.E.W.); (J.B.C.); (D.B.-R.)
- Department of Preventive Medicine, Northwestern University, Chicago, IL 60611, USA
- Correspondence: ; Tel.: +1-814-863-3451
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Conroy DE, West AB, Brunke-Reese D, Thomaz E, Streeper NM. Just-in-time adaptive intervention to promote fluid consumption in patients with kidney stones. Health Psychol 2021; 39:1062-1069. [PMID: 33252930 DOI: 10.1037/hea0001032] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Kidney stones are painful and costly. Prevention guidelines emphasize a simple behavior change: increasing fluid intake and urine output. Unfortunately, adherence to those prevention guidelines is limited, and patients report forgetting or not being thirsty enough. This study evaluated the acceptability of using semiautomated tracking of fluid consumption to trigger just-in-time reminders to drink and increase the experienced automaticity of fluid intake. METHOD In a single-group trial, participants with a history of kidney stones (n = 31) used the sipIT digital tools (H2OPal connected water bottle, H2OPal mobile app for self-tracking, Fitbit smartwatch app for gesture detection) for 3 months. RESULTS The semiautomated monitoring system detected 46,654 drinking events. From baseline to 1-month follow-up, the experienced automaticity of fluid intake increased significantly (d = 0.50) and remained elevated at 3-month follow-up (d = 0.64). A major barrier to adherence (lack of thirst) decreased from baseline to follow-ups. Retention rates and participant feedback indicated that this digital tool was acceptable to patients. CONCLUSION Semiautomated tracking of fluid consumption can be used to trigger just-in-time reminders. Based on this demonstration, the sipIT tools are ready for testing in a rigorous Phase II trial to evaluate efficacy for increasing fluid consumption and urine output as recommended for preventing the recurrence of kidney stones. (PsycInfo Database Record (c) 2020 APA, all rights reserved).
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Brunke-Reese D, Ssentongo P, Ssentongo AE, Phillips BE, Pauli EM, Berg A, Kelleher SL, Soybel DI. The Role of Genetic Variant rs13266634 in SLC30A8/ZnT8 in Post-Operative Hyperglycemia after Major Abdominal Surgery. J Clin Endocrinol Metab 2019; 104:3877-3892. [PMID: 31220282 DOI: 10.1210/jc.2018-02588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 04/04/2019] [Indexed: 11/19/2022]
Abstract
CONTEXT Following major surgery, post-operative hyperglycemia (POHG) is associated with suboptimal outcomes, among diabetics and non-diabetics. A specific genetic variant, rs13266634 (c.973C>T; p.ARG325TRP) in zinc transporter SLC30A8/ZnT8, is associated with protection against Type-2 Diabetes, suggesting it may be actionable for predicting and preventing POHG. OBJECTIVE To determine independent and mediated influences of a genetic variant on POHG in patients undergoing a model major operation, complex abdominal ventral hernia repair (cVHR). PATIENTS AND METHODS For 110 patients (mean BMI 34.9±5.8, T2D history 28%) undergoing cVHR at a tertiary referral center (January 2012 to March 2017), multivariate regression was used to correlate the rs13266634 variant to pre-operative clinical, laboratory and imaging-based indices of liver steatosis and central abdominal adiposity to POHG. Causal Mediation Analysis (CMA) was used to determine direct and mediated contributions of SLC30A8/ZnT8 status to POHG. RESULTS Variant rs13266634 was present in 61 patients (55.4%). In univariate models, when compared to patients with rs13266634, the homozygous wild-genotype (C/C, n=49) was associated with significantly higher risks of POHG (OR= 0.30 95%CI =0.14, 0.67, P=0.0038). Multivariate regression indicated that the association was independent (OR= 0.39 95%CI 0.15-0.97, p=0.040). In addition, CMA suggested that rs13266634 protects against POHG directly and indirectly through its influence on liver steatosis and central adiposity. CONCLUSIONS In medically complex patients undergoing major operations, the rs13266634 variant protects against POHG and its associated outcomes, through independent and mediated contributions. In C/C patients undergoing major operations, SLC30A8/ZnT8 may prove useful to stratify risk of POHG and potentially as a therapeutic target.
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Affiliation(s)
- Deborah Brunke-Reese
- Department of Surgery, Penn State Hershey College of Medicine and Milton S. Hershey Medical Center, Hershey, PA
| | - Paddy Ssentongo
- Department of Surgery, Penn State Hershey College of Medicine and Milton S. Hershey Medical Center, Hershey, PA
- Center for Neural Engineering, Department of Engineering, Science and Mechanics, The Pennsylvania State University, PA, USA
| | - Anna E Ssentongo
- Department of Surgery, Penn State Hershey College of Medicine and Milton S. Hershey Medical Center, Hershey, PA
- Department of Public Health Sciences, Penn State Hershey College of Medicine and Milton S. Hershey Medical Center, Hershey
| | - Brett E Phillips
- Allegheny Health Network Institute of Cellular Therapeutics, Allegheny General Hospital, Pittsburgh, PA, USA
| | - Eric M Pauli
- Department of Surgery, Penn State Hershey College of Medicine and Milton S. Hershey Medical Center, Hershey, PA
| | - Arthur Berg
- Department of Public Health Sciences, Penn State Hershey College of Medicine and Milton S. Hershey Medical Center, Hershey
| | - Shannon L Kelleher
- Department of Surgery, Penn State Hershey College of Medicine and Milton S. Hershey Medical Center, Hershey, PA
- Department of Department of Biomedical and Nutritional Sciences, Zuckerberg College of Health Sciences, University of Massachusetts- Lowell, Lowell, MA
| | - David I Soybel
- Department of Surgery, Penn State Hershey College of Medicine and Milton S. Hershey Medical Center, Hershey, PA
- Department of Cellular & Molecular Physiology, Penn State Hershey College of Medicine and Milton S. Hershey Medical Center, Hershey, PA, USA
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Ssentongo P, Brunke-Reese D, Sentongo AE, Pauli EM, Soybel DI. Genetic Variation in Zinc Transporter SLC30A8/Znt8 Modifies Risk of Surgical Stress Induced Hyperglycemia in Patients Undergoing Major Abdominal Operation. J Am Coll Surg 2018. [DOI: 10.1016/j.jamcollsurg.2018.07.206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kaag M, Brunke-Reese D, Gogoj A, Lehman E, Soybel D. PD11-04 RECOVERY OF EXERCISE TOLERANCE AT THREE MONTHS FOLLOWING RADICAL CYSTECTOMY IN A PROSPECTIVE COHORT. J Urol 2018. [DOI: 10.1016/j.juro.2018.02.627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Chacon AC, Phillips BE, Chacon MA, Brunke-Reese D, Kelleher SL, Soybel DI. Oral omega-3 fatty acids promote resolution in chemical peritonitis. J Surg Res 2016; 206:190-198. [PMID: 27916361 DOI: 10.1016/j.jss.2016.06.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 06/01/2016] [Accepted: 06/10/2016] [Indexed: 12/31/2022]
Abstract
BACKGROUND Recent studies suggest that purified omega-3 fatty acids may attenuate acute inflammation and hasten the transition to healing. In this study, we tested the hypothesis that pretreatment with omega-3-rich fish oil (FO) would promote resolution of peritoneal inflammation through production of specific lipid mediators. METHODS C57/BL6 mice were given a daily 200-μL oral gavage of saline (CTL) or FO (1.0-1.5 g/kg/d docosahexaenoic acid and 1.3-2.0 g/kg/d eicosapentaenoic acid) for 7 d before chemical peritonitis was induced with thioglycollate. Peritoneal lavage fluid was collected before induction and at days 2 and 4 after peritonitis onset. Prostaglandin E2 (PGE2), Leukotriene B4 (LTB4), Resolvin D1 (RvD1), and the composition of immune cell populations were examined in peritoneal lavage exudates. Cells harvested from the peritoneum were assessed for macrophage differentiation markers, phagocytosis, and lipopolysaccharide-induced cytokine secretion profiles (interleukin [IL]-6, IL-10, IL-1β, TNFα). RESULTS The ratio of RvD1 to pro-inflammatory PGE2 and LTB4 was increased in the peritoneal cavity of FO-supplemented animals. FO induced a decrease in the number of monocytes in the lavage fluid, with no change in the number of macrophages, neutrophils, or lymphocytes. Macrophage phagocytosis and M1/M2 messenger RNA markers were unchanged by FO with the exception of decreased PPARγ expression. FO increased ex vivo TNFα secretion after stimulation with lipopolysaccharide. CONCLUSIONS Our findings provide evidence that nutraceutically relevant doses of FO supplements given before and during chemical peritonitis shift the balance of lipid mediators towards a proresolution, anti-inflammatory state without drastically altering the number or phenotype of local innate immune cell populations.
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Affiliation(s)
- Alexander C Chacon
- Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | | | | | | | - Shannon L Kelleher
- Department of Surgery, Hershey, Pennsylvania; Department of Cellular and Molecular Physiology, Hershey, Pennsylvania; Department of Pharmacology, Hershey, Pennsylvania
| | - David I Soybel
- Department of Surgery, Hershey, Pennsylvania; Department of Cellular and Molecular Physiology, Hershey, Pennsylvania.
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Won EJ, Lehman EB, Geletzke AK, Tangel MR, Matsushima K, Brunke-Reese D, Pichardo-Lowden AR, Pauli EM, Soybel DI. Association of Postoperative Hyperglycemia With Outcomes Among Patients With Complex Ventral Hernia Repair. JAMA Surg 2015; 150:433-40. [DOI: 10.1001/jamasurg.2014.3160] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Eugene J. Won
- Department of Surgery, Penn State Hershey College of Medicine and Milton S. Hershey Medical Center, Hershey
| | - Erik B. Lehman
- Department of Public Health Services, Penn State Hershey College of Medicine and Milton S. Hershey Medical Center, Hershey
| | - Abby K. Geletzke
- Department of Surgery, Penn State Hershey College of Medicine and Milton S. Hershey Medical Center, Hershey
| | - Matthew R. Tangel
- Department of Surgery, Penn State Hershey College of Medicine and Milton S. Hershey Medical Center, Hershey
| | | | - Deborah Brunke-Reese
- Department of Surgery, Penn State Hershey College of Medicine and Milton S. Hershey Medical Center, Hershey
| | - Ariana R. Pichardo-Lowden
- Department of Medicine, Penn State Hershey College of Medicine and Milton S. Hershey Medical Center, Hershey
| | - Eric M. Pauli
- Department of Surgery, Penn State Hershey College of Medicine and Milton S. Hershey Medical Center, Hershey
| | - David I. Soybel
- Department of Surgery, Penn State Hershey College of Medicine and Milton S. Hershey Medical Center, Hershey
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Wakshull E, Brunke-Reese D, Lindermuth J, Fisette L, Nathans RS, Crowley JJ, Tufts JC, Zimmerman J, Mackin W, Adams DS. PGG-glucan, a soluble beta-(1,3)-glucan, enhances the oxidative burst response, microbicidal activity, and activates an NF-kappa B-like factor in human PMN: evidence for a glycosphingolipid beta-(1,3)-glucan receptor. Immunopharmacology 1999; 41:89-107. [PMID: 10102791 DOI: 10.1016/s0162-3109(98)00059-9] [Citation(s) in RCA: 114] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
PGG-Glucan, a soluble beta-(1,6)-branched beta-(1,3)-linked glucose homopolymer derived from the cell wall of the yeast Saccharomyces cerevisiae, is an immunomodulator which enhances leukocyte anti-infective activity and enhances myeloid and megakaryocyte progenitor proliferation. Incubation of human whole blood with PGG-Glucan significantly enhanced the oxidative burst response of subsequently isolated blood leukocytes to both soluble and particulate activators in a dose-dependent manner, and increased leukocyte microbicidal activity. No evidence for inflammatory cytokine production was obtained under these conditions. Electrophoretic mobility shift assays demonstrated that PGG-Glucan induced the activation of an NF-kappaB-like nuclear transcription factor in purified human neutrophils. The binding of 3H-PGG-Glucan to human leukocyte membranes was specific, concentration-dependent, saturable, and high affinity (Kd approximately 6 nM). A monoclonal antibody specific to the glycosphingolipid lactosylceramide was able to inhibit activation of the NF-kappaB-like factor by PGG-Glucan, and ligand binding data, including polysaccharide specificity, suggested that the PGG-Glucan binding moiety was lactosylceramide. These results indicate that PGG-Glucan enhances neutrophil anti-microbial functions and that interaction between this beta-glucan and human neutrophils is mediated by the glycosphingolipid lactosylceramide present at the cell surface.
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Affiliation(s)
- E Wakshull
- Department of Biology, Alpha-Beta Technology, Worcester, MA 01605, USA.
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Michalek M, Melican D, Brunke-Reese D, Langevin M, Lemerise K, Galbraith W, Patchen M, Mackin W. Activation of rat macrophages by Betafectin PGG-glucan requires cross-linking of membrane receptors distinct from complement receptor three (CR3). J Leukoc Biol 1998; 64:337-44. [PMID: 9738660 DOI: 10.1002/jlb.64.3.337] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
PGG-glucan (Betafectin) is a soluble, highly purified yeast (1,3)-beta-glucan with broad anti-infective and immunomodulatory activities. These studies evaluated the ability of PGG-glucan to directly elicit O2- and tumor necrosis factor alpha (TNF-alpha) production by rat leukocytes in vitro. Particulate beta-glucan stimulated O2- production by the rat NR8383 alveolar macrophage cell line and resident rat peritoneal macrophages, but soluble PGG-glucan did not. In contrast, presentation of PGG-glucan to cells after covalent immobilization to a plastic surface caused a direct stimulation of O2- and TNF-alpha production. The O2- response of rat leukocytes to immobilized PGG-glucan was inhibited by soluble PGG-glucan, indicating that cellular responses to both immobilized and soluble PGG-glucan occur via common cell surface receptors. Because complement receptor type three (CR3) has been proposed as a beta-glucan receptor on human leukocytes, NR8383 cells were evaluated for the presence of CR3. Indirect immunofluorescence and flow cytometric analysis showed that despite being responsive to both particulate and immobilized beta-glucans, NR8383 cells expressed no detectable CR3. These results indicate that the beta-glucan receptors on NR8383 cells are not CR3 and suggest that physical presentation plays an important role in inducing pro-inflammatory leukocyte responses to PGG-glucan.
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Affiliation(s)
- M Michalek
- Alpha-Beta Technology, Inc., Worcester, Massachusetts 01605, USA
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Parnet P, Amindari S, Wu C, Brunke-Reese D, Goujon E, Weyhenmeyer JA, Dantzer R, Kelley KW. Expression of type I and type II interleukin-1 receptors in mouse brain. Brain Res Mol Brain Res 1994; 27:63-70. [PMID: 7877456 DOI: 10.1016/0169-328x(94)90185-6] [Citation(s) in RCA: 113] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Although binding sites for IL-1 have been identified in the mouse brain, it is still unknown whether these binding sites correspond to the type I or type II IL-1 receptor. Quantitative autoradiography was used to confirm the presence of specific binding sites for radiolabelled recombinant human IL-1 alpha (125I-HuIL-1 alpha) in the brain of DBA/2 mice. IL-1 binding was highest in the dentate gyrus, consisting of a single class of high affinity binding sites with a Kd of 0.1 nM and a Bmax of 57 fmol/mg protein. A similar Kd of 0.2 nM was obtained using isolated membranes from the whole hippocampus, although the number of binding sites was lower (2 fmol/mg protein). Affinity cross-linking of 125I-Hu-IL-1 alpha to hippocampal membranes revealed the existence of two types of IL-1 receptor proteins, consistent with the sizes of the type I (85 kD) and type II (60 kD) IL-1 receptor. Oligonucleotide probes were then synthesized and used in RT-PCR followed by Southern blotting to show that the whole brain expresses transcripts for both the type I and type II IL-1 receptors. The murine neuroblastoma cell line, C1300, expresses type I rather than type II IL-1 receptor mRNA. The type I receptor protein can be identified by flow cytometry on the membrane of the C1300 neuronal cell line using indirect immunofluorescence with a rat anti-mouse type I IL-1 receptor MoAb. These data show that mouse brain expresses both type I and type II IL-1 receptor mRNA and proteins and offer further support to the idea that type I IL-1 receptors are synthesized and expressed by neurons.
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Affiliation(s)
- P Parnet
- INRA-INSERM, Laboratory of Integrative Neurobiology, Bordeaux, France
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