Older Adults With Inflammatory Bowel Disease in Canada: A Mixed-Methods Exploratory Study of Care Experiences and Health-Related Quality of Life.

Literature exploring the health-related quality of life and care experiences of older adults with inflammatory bowel disease is limited despite the increasing prevalence in this population. The purpose of this study was to explore the perceived health-related quality of life and care experiences in older adults with inflammatory bowel disease in Canada. This study used a mixed-methods convergent design consisting of a descriptive, cross-sectional survey and qualitative descriptive interviews. Fifty-eight participants completed the survey and 24 participants completed interviews. Older adults reported satisfaction with inflammatory bowel disease-related care, high levels of disease control, moderate health-related quality of life, and low levels of patient-healthcare team interactions. Themes identified were (1) Experiences of inflammatory bowel disease in daily life; (2) Accessibility of inflammatory bowel disease-related health services; and (3) Communication and relationships to facilitate inflammatory bowel disease care. Ultimately, quality inflammatory bowel disease care for older adults is contingent upon communication between patients and providers, access to multidisciplinary clinics, and support networks. By ensuring these factors are present, providers and patients can work together collectively toward positive patient outcomes, enhanced satisfaction with care, and greater perceived quality of care.

Exploring pain among young people who have completed treatment for acute lymphoblastic leukemia: experiences of youth and caregivers.

PURPOSE: Acute lymphoblastic leukemia (ALL) is the most common cancer diagnosed among individuals <14 years of age. The disease and its treatments are associated with negative side effects, including pain, which is both prevalent and distressing. Little is known about pain experiences in this population, which has slowed efforts to identify strategies to mitigate and cope with this adverse effect. This study sought to explore youth's and their caregiver's experiences with, and perspectives of, pain in the context of pediatric cancer treatment. METHODS: Youth and one of their caregivers were recruited through (omitted for peer review). Following completion of a demographic survey, youth and one of their caregivers were interviewed separately using a semi-structured, one-on-one interview guide. Demographic information was analyzed with descriptive statistics, and interviews were transcribed verbatim and analyzed using reflexive thematic analysis. RESULTS: Youth (n = 19; Mage = 15.3 years) and caregiver (n = 19; Mage = 45.4 years) perspectives informed 4 themes: (1) my pain experience is nuanced, multidimensional, and is changing over time; (2) the cancer experience has changed the way I experience and respond to pain; (3) I used strategies to manage pain, and not all of them worked; and (4) my pain experience was influenced by people around me. CONCLUSIONS: Findings extend prior work, suggesting that pain is common, distressing, multidimensional, and influenced by social context. Results highlight the number of ways in which youth and their caregivers attempt to manage their pain and factors influencing pain experiences. Greater efforts are needed to address pain during cancer treatment and survivorship.

The Experiences of Older Adults Living With Inflammatory Bowel Disease: A Scoping Review.

The prevalence of inflammatory bowel disease is rising in persons older than 65 years. Although there is extensive literature on inflammatory bowel disease in older adults from a disease-related outcome, epidemiological, and treatment perspective, the older adult perspective on inflammatory bowel disease-related care needs and experiences is not well represented. This scoping review examines the existing literature regarding the care experiences of older adults living with inflammatory bowel disease. A systematic search was conducted using 3 concepts: older adults, inflammatory bowel disease, and patient experience. Seven publications met the inclusion criteria. Reported data include study design and methods, sample characteristics, and findings relevant to the research question. Two themes were identified: preferences for interactions with healthcare personnel and peer support networks, and barriers to accessing care for inflammatory bowel disease needs. An overarching concept across all studies was the need and request for individualized, patient-centered care where patient preferences are considered. This review highlights the need for more research on the older adult age group to guide evidence-informed practice that meets their individual inflammatory bowel disease care needs.

Impact of whole-body resistance exercise timing on mitigating hyperglycaemia-induced vascular dysfunction.

NEW FINDINGS: What is the central question of this study? Is the estrous cycle affected during disuse atrophies and if so, how do estrous cycle changes relate to musculoskeletal outcomes? What is the main finding and its importance? Rodent estrous cycles are altered during disuse atrophy, which corresponds to musculoskeletal outcomes. However, the estrous cycle does not appear changed in Lewis Lung Carcinoma, which corresponded to no differences in muscle size compared to healthy controls. These findings suggest a relationship between estrous cycle and muscle size during atrophic pathologies. ABSTRACT: Hyperglycemia can cause disruptions in vascular function, whereas exercise has been shown to restore vascular function. The primary aim of this study is to investigate the effect of performing whole-body resistance exercise, 30-min before, immediately following, or 30- or 60-min after a high carbohydrate meal, on endothelial function, measured by flow-mediated dilation (FMD). Healthy adults will be recruited to this randomized crossover trial to compare the postprandial glycaemic and vascular responses to four different exercise timing conditions and a control: i) C- control, high carbohydrate meal/no exercise, ii) 30Pre- 30 min of resistance exercises (~30% of 1RM [Repetition Maximum]), 30 min before a high carbohydrate meal, iii) IP- 30 min of resistance exercises (~30% of 1RM), immediately following a high carbohydrate meal, iv) 30Post- 30 min of resistance exercises, 30 min after a high carbohydrate meal and v) 60Post- 30 min of resistance exercises, 60 min after a high carbohydrate meal. Measures of metabolic and vascular function will be assessed at baseline and for two hours following the carbohydrate-based breakfast meal.

Perspectives of health care use and access to care for individuals living with inflammatory bowel disease in rural Canada.

INTRODUCTION: Inflammatory bowel disease (IBD) is a chronic inflammatory condition of the gastrointestinal tract with no known cure. Management of IBD is complex and requires those with IBD to have lifelong interactions with the healthcare system. Individuals with IBD who live in rural areas are at risk of poorer health outcomes due to their limited access to care. This study examined healthcare utilization and access to care for rural adults with IBD. The research questions explored in this study were: What are the care experiences of healthcare providers (HCPs) and persons living with IBD in rural areas? What are the enablers and barriers to optimal IBD care in rural environments? What strategies are necessary to enhance care delivery for these individuals with IBD? METHODS: This patient-oriented research initiative involved patient and family advisors as active and equal team members in decision-making throughout the project. This article reports on the qualitative findings of a larger mixed-methods study. The setting was one western Canadian province. Fourteen individuals with IBD living in rural areas and three HCPs working in rural areas participated. Interview data were analyzed using thematic analysis. RESULTS: Three themes were identified: communication, stressors and support systems, and coordination of care. Communication with and between HCPs was challenging due to the distance to access care. Participants described challenges related to rural HCPs' lack of IBD-related knowledge. Virtual communication, such as telehealth and phone clinics, was infrequently used yet highly recommended by participants. Individuals with IBD described various stressors and feelings of isolation while living in rural environments, and both participant groups described the need for additional formal and informal support systems to ease these stressors. Coordination of care was considered essential to optimal health outcomes, but individuals frequently experienced gaps in care. Lack of local services such as outpatient clinics, hospitals, laboratory testing, infusion clinics, and pharmacies meant individuals with IBD frequently had to travel to access care. Some participants reported bypassing existing local services, instead preferring the expedited, specialist care within larger centers. CONCLUSION: Most participants described challenges associated with living in rural areas and suggested health system improvements. Access to multidisciplinary care teams, including IBD physicians and nurses, psychologists, and dieticians, for individuals in rural areas is encouraged, as is the use of virtual care delivery options such as telehealth, online clinics, telephone clinics or advice lines, web-based video-conferencing, and email communication to increase access to care. Continued efforts to recruit and retain rural HCPs with knowledge of IBD are deemed necessary to provide continuity of care within rural environments. Strengthening formal and informal support systems and enhancing psychosocial supports in rural communities are warranted to ensure optimal wellbeing. Online strategies to provide individual and group education related to IBD are strongly recommended. Facilitating access to care in rural areas can increase disease remission, decrease direct and indirect care costs, and promote quality of life in individuals with IBD.

Occupational therapy intervention for cancer patients following hospital discharge: How and when should we intervene? A systematic review.

INTRODUCTION: Advances in cancer treatment over the last decade have led to increased survival rates. As a result, survivors are living longer with and beyond cancer, often with greater levels of morbidity. Occupational therapists, with their focus on remedial and compensatory strategies to improve function and participation, are well suited to assess and intervene with this population. Despite this, little research exists to demonstrate the efficacy of interventions and value of the occupational therapy role. This systematic review aimed to review how and when occupational therapists provide services for adult patients with cancer and identify where they add the most value. METHODS: A systematic search was conducted of six electronic databases. Eligible studies reported on occupational therapy interventions targeting management of cancer symptoms, rehabilitation or environmental modifications for adult cancer patients discharged from acute hospital services. Data extraction and quality assessment were undertaken by two reviewers. Narrative synthesis summarised the attributes and treatment outcomes of each intervention. RESULTS: Nine articles were included from a total of 309 articles retrieved. Eight different interventions were reported for people with cancer (n = 531). Small sample sizes and methodological quality precluded any formal analysis; however, intervention components that showed positive results were person-centred, individualised and included regular monitoring and flexibility in care, with input from multidisciplinary health professionals. Therapists also need to reflect upon the optimal duration of interventions and selection of outcome measures that specifically match intervention components. CONCLUSION: Despite inconclusive support of any particular type of intervention, this systematic review identified several successful intervention components for occupational therapists working with people with or beyond cancer. Overall, findings suggest that monitored tailored programmes compensating for fluctuations in a patient's condition have efficacy to improve patient outcomes and should be considered when delivering intervention with patients post hospital discharge.

Exploring the Experiences of Virtual Inflammatory Bowel Disease Care in Saskatchewan.

BACKGROUND: Individuals with inflammatory bowel disease (IBD) require life-long interactions with the healthcare system. Virtual care (VC) technologies are becoming increasingly utilized for accessing healthcare services. Research related to the use of VC technology for the management of IBD in Canada is limited. This study aimed to examine the VC experiences from the perspectives of individuals with IBD and gastroenterology care providers (GCPs). METHODS: A patient-oriented, qualitative descriptive approach was used. Semi-structured interviews were completed with individuals with IBD and GCPs. Data were analyzed using an inductive content analysis approach. RESULTS: A total of 25 individuals with IBD and five GCPs were interviewed. Three categories were identified: benefits of virtual IBD care delivery, challenges of virtual IBD care delivery, and optimizing IBD care delivery. Individuals with IBD and GCPs were satisfied with the use of VC technology for appointments. Participants believed VC was convenient and allowed enhanced access to care. However, VC was not considered ideal in some instances, such as during disease flares or first appointments. Thus, a blended use of virtual and in-person appointments was suggested for individualized care. CONCLUSIONS: The virtual method of connecting patients and providers is deemed useful for routine appointments and for persons living in rural areas. VC is becoming more common in the IBD care environment. Nurses are in a key position to facilitate and enhance virtual IBD care delivery for the benefit of both individuals living with IBD and providers.

Sleep Efficiency and Sleep Onset Latency in One Saskatchewan First Nation.

BACKGROUND: Sleep efficiency and sleep onset latency are two measures that can be used to assess sleep quality. Factors that are related to sleep quality include age, sex, sociodemographic factors, and physical and mental health status. This study examines factors related to sleep efficiency and sleep onset latency in one First Nation in Saskatchewan, Canada. METHODS: A baseline survey of the First Nations Sleep Health project was completed between 2018 and 2019 in collaboration with two Cree First Nations. One-night actigraphy evaluations were completed within one of the two First Nations. Objective actigraphy evaluations included sleep efficiency and sleep onset latency. A total of 167 individuals participated, and of these, 156 observations were available for analysis. Statistical analysis was conducted using logistic and linear regression models. RESULTS: More females (61%) than males participated in the actigraphy study, with the mean age being higher for females (39.6 years) than males (35.0 years). The mean sleep efficiency was 83.38%, and the mean sleep onset latency was 20.74 (SD = 27.25) minutes. Age, chronic pain, ever having high blood pressure, and smoking inside the house were associated with an increased risk of poor sleep efficiency in the multiple logistic regression model. Age, chronic pain, ever having anxiety, heart-related illness, and smoking inside the house were associated with longer sleep onset latency in the multiple linear regression model. CONCLUSIONS: Sleep efficiency and sleep onset latency were associated with physical and environmental factors in this First Nation.

A clinical impact study of dermatologists' use of diagnostic gene expression profile testing to guide patient management.

Aim: Cutaneous melanocytic neoplasms with diagnostic and/or clinical ambiguity pose patient management challenges. Methods: Six randomized case scenarios with diagnostic/clinical uncertainty were described with/without a benign or malignant diagnostic gene expression profile (GEP) result. Results: Clinical impact was assessed by reporting the mean increase/decrease of management changes normalized to baseline (n = 32 dermatologists). Benign GEP results prompted clinicians to decrease surgical margins (84.2%). Malignant GEP results escalated surgical excision recommendations (100%). A majority (72.2%) reduced and nearly all (98.9%) increased follow-up frequency for benign or malignant GEP results, respectively. There was an overall increase in management plan confidence with GEP results. Conclusion: Diagnostic GEP tests help guide clinical decision-making in a variety of diagnostically ambiguous or clinicopathologically discordant scenarios.

Dermatologists' use of diagnostic gene expression profiles for personalized patient care. When your doctor takes a piece of a mole, that mole is looked at under the microscope by a pathologist. The pathologist is responsible for figuring out if the mole is dangerous or not. Dangerous moles are removed with surgery to make sure all the dangerous tissue is gone. Moles without a health threat are left alone. Sometimes figuring out how dangerous a mole is is difficult. The pathologist may not provide the doctor with enough information for them to know how to treat your mole. There is a test that can provide information on whether your mole is unsafe. This test is called diagnostic gene expression profiling or GEP. In this study, GEP is used to help doctors figure out how to treat a mole and how often the patient should be seen in the office for skin checks. With GEP, important changes in patient treatment were identified. These include the need for an additional surgery, how much healthy tissue should be removed during surgery and how often the patient should be seen in the office. For suspicious moles where the pathology report is unclear, GEP can provide information that leads to more appropriate and personalized patient care.

Ancillary diagnostic gene expression profile testing for ambiguous cutaneous melanocytic lesions helps optimize dermatologist recommendations for excision margin and follow-up.

Bioactive hydrogels with enhanced initial and sustained cell interactions.

The highly tunable properties of poly(ethylene glycol) (PEG)-based hydrogel systems permit their use in a wide array of regenerative medicine and drug delivery applications. One of the most valuable properties of PEG hydrogels is their intrinsic resistance to protein adsorption and cell adhesion, as it allows for a controlled introduction of desired bioactive factors including proteins, peptides, and drugs. Acrylate-PEG-N-hydroxysuccinimide (Acr-PEG-NHS) is widely utilized as a PEG linker to functionalize bioactive factors with photo-cross-linkable groups. This enables their facile incorporation into PEG hydrogel networks or the use of PEGylation strategies for drug delivery. However, PEG linkers can sterically block integrin binding sites on functionalized proteins and reduce cell-material interactions. In this study we demonstrate that reducing the density of PEG linkers on protein backbones during functionalization results in significantly improved cell adhesion and spreading to bioactive hydrogels. However, this reduction in functionalization density also increases protein loss from the matrix over time due to ester hydrolysis of the Acr-PEG-NHS linkers. To address this, a novel PEG linker, acrylamide-PEG-isocyanate (Aam-PEG-I), with enhanced hydrolytic stability was synthesized. It was found that decreasing functionalization density with Aam-PEG-I resulted in comparable increases in cell adhesion and spreading to Acr-PEG-NHS systems while maintaining protein and bioactivity levels within the hydrogel network over a significantly longer time frame. Thus, Aam-PEG-I provides a new option for protein functionalization for use in a wide range of applications that improves initial and sustained cell-material interactions to enhance control of bioactivity.

Bmper inhibits endothelial expression of inflammatory adhesion molecules and protects against atherosclerosis.

OBJECTIVE: Bone morphogenetic proteins (Bmps) are important mediators of inflammation and atherosclerosis, though their mechanism of action is not fully understood. To better understand the contribution of the Bmp signaling pathway in vascular inflammation, we investigated the role of Bmper (Bmp endothelial cell precursor-derived regulator), an extracellular Bmp modulator, in an induced in vivo model of inflammation and atherosclerosis. METHODS AND RESULTS: We crossed apolipoprotein E-deficient (ApoE(-/-)) mice with mice missing 1 allele of Bmper (Bmper(+/-) mice used in the place of Bmper(-/-) mice that die at birth) and measured the development of atherosclerosis in mice fed a high-fat diet. Bmper haploinsufficiency in ApoE(-/-) mice (Bmper(+/-);ApoE(-/-) mice) led to a more severe phenotype compared with Bmper(+/+);ApoE(-/-) mice. Bmper(+/-);ApoE(-/-) mice also exhibited increased Bmp activity in the endothelial cells in both the greater and lesser curvatures of the aortic arch, suggesting a role for Bmper in regulating Bmp-mediated inflammation associated with laminar and oscillatory shear stress. Small interfering RNA knockdown of Bmper in human umbilical vein endothelial cells caused a dramatic increase in the inflammatory markers intracellular adhesion molecule 1 and vascular cell adhesion molecule 1 at rest and after exposure to oscillatory and laminar shear stress. CONCLUSIONS: We conclude that Bmper is a critical regulator of Bmp-mediated vascular inflammation and that the fine-tuning of Bmp and Bmper levels is essential in the maintenance of normal vascular homeostasis.

Using Continuous Glucose Monitoring to Prescribe a Time to Exercise for Individuals with Type 2 Diabetes.

This study examines the potential utility of using continuous glucose monitoring (CGM) to prescribe an exercise time to target peak hyperglycaemia in people with type 2 diabetes (T2D). The main aim is to test the feasibility of prescribing an individualised daily exercise time, based on the time of CGM-derived peak glucose, for people with T2D. Thirty-five individuals with T2D (HbA1c: 7.2 ± 0.8%; age: 64 ± 7 y; BMI: 29.2 ± 5.2 kg/m2) were recruited and randomised to one of two 14 d exercise interventions: i) ExPeak (daily exercise starting 30 min before peak hyperglycaemia) or placebo active control NonPeak (daily exercise starting 90 min after peak hyperglycaemia). The time of peak hyperglycaemia was determined via a two-week baseline CGM. A CGM, accelerometer, and heart rate monitor were worn during the free-living interventions to objectively measure glycaemic control outcomes, moderate-to-vigorous intensity physical activity (MVPA), and exercise adherence for future translation in a clinical trial. Participation in MVPA increased 26% when an exercise time was prescribed compared to habitual baseline (p < 0.01), with no difference between intervention groups (p > 0.26). The total MVPA increased by 10 min/day during the intervention compared to the baseline (baseline: 23 ± 14 min/d vs. intervention: 33 ± 16 min/d, main effect of time p = 0.03, no interaction). The change in peak blood glucose (mmol/L) was similar between the ExPeak (-0.44 ± 1.6 mmol/L, d = 0.21) and the NonPeak (-0.39 ± 1.5 mmol/L, d = 0.16) intervention groups (p = 0.92). Prescribing an exercise time based on CGM may increase daily participation in physical activity in people with type 2 diabetes; however, further studies are needed to test the long-term impact of this approach.

Personalising activity to target peak hyperglycaemia and improve cardiometabolic health in people with type 2 diabetes: protocol for a randomised controlled trial.

INTRODUCTION: The benefits of physical activity for glycaemic control in type 2 diabetes (T2D) are well-known. However, whether established glycaemic and cardiovascular benefits can be maximised by exercising at a certain time of day is unknown. Given postprandial glucose peaks contribute to worsening glycated haemoglobin (HbA1c) and cardiovascular risk factors, and that exercise immediately lowers blood glucose, prescribing exercise at a specific time of day to attenuate peak hyperglycaemia may improve glycaemic control and reduce the burden of cardiovascular disease in people with T2D. METHODS AND ANALYSIS: A single-centre randomised controlled trial will be conducted by the University of Wollongong, Australia. Individuals with T2D (n=70, aged 40-75 years, body mass index (BMI): 27-40 kg/m2) will be recruited and randomly allocated (1:1), stratified for sex and insulin, to one of three groups: (1) exercise at time of peak hyperglycaemia (ExPeak, personalised), (2) exercise not at time of peak hyperglycaemia (NonPeak) or (3) waitlist control (WLC, standard care). The trial will be 5 months, comprising an 8-week intervention and 3-month follow-up. Primary outcome is the change in HbA1c preintervention to postintervention. Secondary outcomes include vascular function (endothelial function and arterial stiffness), metabolic control (blood lipids and inflammation) and body composition (anthropometrics and dual-energy X-ray absorptiometry (DEXA)). Tertiary outcomes will examine adherence. ETHICS AND DISSEMINATION: The joint UOW and ISLHD Ethics Committee approved protocol (2019/ETH09856) prospectively registered at the Australian New Zealand Clinical Trials Registry. Written informed consent will be obtained from all eligible individuals prior to commencement of the trial. Study results will be published as peer-reviewed articles, presented at national/international conferences and media reports. TRIAL REGISTRATION NUMBER: ACTRN12619001049167.

Obesity, Sex, Snoring and Severity of OSA in a First Nation Community in Saskatchewan, Canada.

Sleep disorders have been related to body weight, social conditions, and a number of comorbidities. These include high blood pressure and type 2 diabetes, both of which are prevalent in the First Nations communities. We explored relationships between obstructive sleep apnea (OSA) and risk factors including social, environmental, and individual circumstances. An interviewer-administered survey was conducted with adult participants in 2018−2019 in a First Nations community in Saskatchewan, Canada. The survey collected information on demographic variables, individual and contextual determinants of sleep health, and objective clinical measurements. The presence of OSA was defined as an apnea−hypopnea index (AHI) ≥5. Multiple ordinal logistic regression analysis was conducted to examine relationships between the severity of OSA and potential risk factors. In addition to the survey, 233 men and women participated in a Level 3 one-night home sleep test. Of those, 105 (45.1%) participants were reported to have obstructive sleep apnea (AHI ≥ 5). Mild and moderately severe OSA (AHI ≥ 5 to <30) was present in 39.9% and severe OSA (AHI ≥ 30) was identified in 5.2% of participants. Being male, being obese, and snoring loudly were significantly associated with severity of OSA. The severity of OSA in one First Nation appears relatively common and may be related to mainly individual factors such as loud snoring, obesity, and sex.

Duration and quality of sleep in 2 rural Cree First Nation communities in Saskatchewan, Canada.

STUDY OBJECTIVES: Estimates of sleep duration and quality are lacking for Canadian First Nations peoples. This study examines the prevalence of and risk factors for short/normal/long sleep duration and sleep quality. METHODS: Five hundred eighty-eight adults participated in the baseline survey of the First Nations Sleep Health Project conducted in 2018-2019 in Saskatchewan, Canada. Sleep duration and quality were self-reported. RESULTS: Mean sleep duration was 8.18 hours per night. About 45.5% slept the recommended 7 hours per night. However, short sleep duration and poor sleep quality were relatively common: about one-quarter of the participants slept fewer hours than recommended. Sleep duration was significantly less for men than women. Women were significantly more likely to report poor sleep quality than males. Multiple regression models revealed that age was significantly related with shorter sleep duration; sex and employment status were significantly related with sleep duration; and sex and income indicators were significantly associated with sleep quality. Nearly half of participants reported having had the recommended hours of sleep, but nearly two-thirds reported poor sleep quality. CONCLUSIONS: Information about the proportion of First Nations adults who sleep the recommended duration and the quality of sleep is important in informing health care and health policy.

STOP-Bang Score and Prediction of Severity of Obstructive Sleep Apnea in a First Nation Community in Saskatchewan, Canada.

The STOP-Bang questionnaire is an easy-to-administer scoring model to screen and identify patients at high risk of obstructive sleep apnea (OSA). However, its diagnostic utility has never been tested with First Nation peoples. The objective was to determine the predictive parameters and the utility of the STOP-Bang questionnaire as an OSA screening tool in a First Nation community in Saskatchewan. The baseline survey of the First Nations Sleep Health Project (FNSHP) was completed between 2018 and 2019. Of the available 233 sleep apnea tests, 215 participants completed the STOP-Bang score questionnaire. A proportional odds ordinal logistic regression analysis was conducted using the total score of the STOP-Bang as the independent variable with equal weight given to each response. Predicted probabilities for each score at cut-off points of the Apnea Hypopnea Index (AHI) were calculated and plotted. To assess the performance of the STOP-Bang questionnaire, sensitivity, specificity, positive predictive values (PPVs), negative predictive values (NPVs), and area under the curve (AUC) were calculated. These data suggest that a STOP-Bang score ≥ 5 will allow healthcare professionals to identify individuals with an increased probability of moderate-to-severe OSA, with high specificity (93.7%) and NPV (91.8%). For the STOP-Bang score cut-off ≥ 3, the sensitivity was 53.1% for all OSA and 72.0% for moderate-to-severe OSA. For the STOP-Bang score cut-off ≥ 3, the specificity was 68.4% for all OSA and 62.6% for moderate-to-severe OSA. The STOP-Bang score was modestly superior to the symptom of loud snoring, or loud snoring plus obesity in this population. Analysis by sex suggested that a STOP-Bang score ≥ 5 was able to identify individuals with increased probability of moderate-to-severe OSA, for males with acceptable diagnostic test accuracy for detecting participants with OSA, but there was no diagnostic test accuracy for females.

An engineered alpha1 integrin-binding collagenous sequence.

Collagen is an extracellular matrix structural component that can regulate cellular processes through its interaction with the integrins, α1ß1, α2ß1, α10ß1, and α11ß1. Collagen-like proteins have been identified in a number of bacterial species. Here, we used Scl2 from Streptococcus pyogenes serotype M28 strain MGAS6274 as a backbone for the introduction of discrete integrin-binding sequences. The introduced sequences GLPGER, GFPGER, or GFPGEN did not affect triple helix stability of the Scl (Streptococcal collagen-like) protein. Using ELISA and surface plasmon resonance, we determined that Scl2(GLPGER) and Scl2(GFPGER) bound to recombinant human α1 and α2 I-domains in a metal ion-dependent manner and without a requirement for hydroxyproline. We predicted a novel and selective integrin-binding sequence, GFPGEN, through the use of computer modeling and demonstrated that Scl2(GFPGEN) shows specificity toward the α1 I-domain and does not bind the α2 I-domain. Using C2C12 cells, we determined that intact integrins interact with the modified Scl2 proteins with the same selectivity as recombinant I-domains. These modified Scl2 proteins also acted as cell attachment substrates for fibroblast, endothelial, and smooth muscle cells. However, the modified Scl2 proteins were unable to aggregate platelets. These results indicate that Scl2 is a suitable backbone for the introduction of mammalian integrin-binding sequences, and these sequences may be manipulated to individually target α1ß1 and α2ß1.

Post-exercise Warm or Cold Water Immersion to Augment the Cardiometabolic Benefits of Exercise Training: A Proof of Concept Trial.

We investigated whether substituting the final half within 60-min bouts of exercise with passive warm or cold water immersion would provide similar or greater benefits for cardiometabolic health. Thirty healthy participants were randomized to two of three short-term training interventions in a partial crossover (12 sessions over 14-16 days, 4 week washout): (i) EXS: 60 min cycling 70% maximum heart rate (HRmax), (ii) WWI: 30 min cycling then 30 min warm water (38-40°C) immersion, and/or (iii) CWI: 30 min cycling then 30 min cold water (10-12°C) immersion. Before and after, participants completed a 20 min cycle work trial, V . O2max test, and an Oral Glucose Tolerance Test during which indirect calorimetry was used to measure substrate oxidation and metabolic flexibility (slope of fasting to post-prandial carbohydrate oxidation). Data from twenty two participants (25 ± 5 year, BMI 23 ± 3 kg/m2, Female = 11) were analyzed using a fixed-effects linear mixed model. V . O2max increased more in EXS (interaction p = 0.004) than CWI (95% CI: 1.1, 5.3 mL/kg/min, Cohen's d = 1.35), but not WWI (CI: -0.4, 3.9 mL/kg/min, d = 0.72). Work trial distance and power increased 383 ± 223 m and 20 ± 6 W, respectively, without differences between interventions (interaction both p > 0.68). WWI lowered post-prandial glucose ∼9% (CI -1.9, -0.5 mmol/L; d = 0.63), with no difference between interventions (interaction p = 0.469). Substituting the second half of exercise with WWI provides similar cardiometabolic health benefits to time matched exercise, however, substituting with CWI does not.

Sleep deprivation in two Saskatchewan First Nation communities: a public health consideration.

OBJECTIVES: Sleep deprivation is a common problem in Canada and is associated with many health problems. More than a quarter of Canadians get fewer than the recommended sleep hours (<7 h). This paper examines the prevalence and risk factors for sleep deprivation in two First Nation communities in Saskatchewan, Canada. METHODS: The baseline cross-sectional survey was completed between 2018 and 2019 in collaboration with the two Cree First Nation communities in Saskatchewan, Canada. There were five hundred and eighty-eight participants participated in the survey from two communities. A Multivariate logistic regression model was used for analysis. RESULTS: The prevalence of sleep deprivation (<7 h of sleep) was 25.4%. The multivariate logistics regression revealed that middle and older age groups, visible mold in the house, and being male with nighttime insomnia symptoms were significantly associated with a higher risk of sleep deprivation among study participants in the study. CONCLUSIONS: In these two First Nation communities, a higher proportion of the participants reported having sleep deprivation. This was a unique study, which evolved from ongoing research collaboration with two First Nation communities in Saskatchewan, Canada. Findings will be helpful in the management of patients with sleep deprivation in these communities; as well as for co-creating policy with the communities and future research priorities.

Seasonal Changes in Sleep Patterns in Two Saskatchewan First Nation Communities.

Sleep is crucial for maintaining the recovery and restoration of the body and brain. Less sleep is associated with poor mental and physical performance. Seasonal changes in sleep patterns can be observed. This paper examines seasonal effects on sleep timing, duration, and problems in two Cree First Nation communities in Saskatchewan, Canada. Data were available from a community survey of 588 adults aged 18 years and older (range: 18-78 years) with 44.2% males and 55.8% females. Results are presented using descriptive statistics and a binary logistic-regression model to identify the association between seasonal changes in sleep patterns, and demographic, social, and environmental factors. The participants reported sleeping the least during the spring and summer months and sleeping the most during the fall and winter months. This was further confirmed by sleep hours and the lower proportion of recommended hours of sleep during the spring and summer, and a higher proportion of longer sleep duration during the fall and winter months. There was no significant variation in sleeping onset and wake-up times by season. Overall, there were no significant differences in the prevalence of sleep deprivation, insomnia, and excessive daytime sleepiness by season. When stratified by age group and sex, some differences existed in the prevalence of sleep problems by season. More than two-thirds (68.6%) of the participants reported that there was a change in sleep patterns across seasons, and about 26.0% reported a very or extremely marked change in sleep patterns across seasons. Changes in sleep patterns by season were related to money left at the end of the month and damage caused by dampness in the house.