129 results on '"Wark JD"'
Search Results
2. WHAM-A Prospective Study of Weight and Body Composition After Risk-Reducing Bilateral Salpingo-oophorectomy
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Price, SAL, Finch, S, Krejany, E, Jiang, H, Kale, A, Domchek, S, Wrede, D, Wark, JD, Hickey, M, Price, SAL, Finch, S, Krejany, E, Jiang, H, Kale, A, Domchek, S, Wrede, D, Wark, JD, and Hickey, M
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CONTEXT: Body weight and composition may change over the natural menopause transition. Whether surgical menopause has similar effects, and the impact of hormone replacement therapy (HRT), are unknown. Understanding the metabolic effects of surgical menopause will inform clinical care. OBJECTIVE: To prospectively measure weight and body composition over 24 months following surgical menopause compared with a similar comparison group who retained their ovaries. METHODS: Prospective observational study of weight change from baseline to 24 months in 95 premenopausal women at elevated risk of ovarian cancer planning risk-reducing salpingo-oophorectomy (RRSO) and 99 comparators who retained their ovaries. Change in body composition from baseline to 24 months was also assessed by dual-energy x-ray absorptiometry in a subgroup of 54 women who underwent RRSO and 81 comparators who retained their ovaries. In the subgroup, weight, fat mass, lean mass, and abdominal fat measures were compared between groups. RESULTS: At 24 months both groups had gained weight (RRSO 2760 ± 4860 g vs comparators 1620 ± 4540 g) with no difference between groups (mean difference 730 g; 95% CI 920 g to 2380 g; P = .383). In the body composition subgroup, there was no difference in weight between groups at 24 months (mean difference 944 g; 95% CI -1120 g to 2614 g; P = .431). RRSO women may have gained slightly more abdominal visceral adipose tissue (mean difference 99.0 g; 95% CI 8.8 g to 189.2 g; P = .032) but there were no other differences in body composition. There were also no differences in weight or body composition between HRT users and nonusers at 24 months. CONCLUSION: 24 months after RRSO, there was no difference in body weight compared with women who retained their ovaries. RRSO women gained more abdominal visceral adipose tissue than comparators, but there were no other differences in body composition. Use of HRT following RRSO had no effect on these outcomes.
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- 2023
3. Quantifying Bone Strength Deficits in Young Adults Born Extremely Preterm or Extremely Low Birth Weight
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Dao, T, Robinson, DL, Doyle, LW, Lee, PVS, Olsen, J, Kale, A, Cheong, JLY, Wark, JD, Dao, T, Robinson, DL, Doyle, LW, Lee, PVS, Olsen, J, Kale, A, Cheong, JLY, and Wark, JD
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- 2023
4. Growth from infancy to adulthood and associations with cardiometabolic health in individuals born extremely preterm
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Cheong, JLY, Olsen, JE, Konstan, T, Mainzer, RM, Hickey, LM, Spittle, AJ, Wark, JD, Cheung, MM, Garland, SM, Duff, J, Clark, M, Stevens, P, Doyle, LW, Cheong, JLY, Olsen, JE, Konstan, T, Mainzer, RM, Hickey, LM, Spittle, AJ, Wark, JD, Cheung, MM, Garland, SM, Duff, J, Clark, M, Stevens, P, and Doyle, LW
- Abstract
BACKGROUND: Few studies have tracked growth in children born extremely preterm (EP, <28 weeks' gestation) beyond late adolescence. The relationships between growth parameters (including weight and BMI) through childhood and adolescence with later cardiometabolic health, are unclear in those born EP. We aimed to (i) compare growth from 2 to 25 years between EP and controls; and in the EP group (ii) determine the associations of growth parameters with cardiometabolic health. METHODS: Prospective state-wide cohort of all EP livebirths in Victoria, Australia, in 1991-1992 and contemporaneous term-born controls. Z-scores for weight (z-weight), height (z-height) and BMI (z-BMI) at 2, 5, 8, 18 and 25 years, and cardiometabolic health at 25 years (body composition, glucose tolerance, lipid profiles, blood pressure, exercise capacity) were measured. Growth trajectories were compared between groups using mixed models. The relationships between z-BMI changes/year, and being overweight at different ages, with cardiometabolic health were explored using linear regression. FINDINGS: Z-weight and z-BMI were lower in EP than controls, but the gap decreased with age due to a more rapid rate of rise in z-weight and a decrease in z-height in the EP group compared with controls. Greater increases in z-BMI/year in the EP group were associated with poorer cardiometabolic health [coefficient (95% CI) per 0.1 z-BMI increase/year: visceral fat volume (cm3) 217.8 (160.9, 274.7), triglycerides (mmol/L) 0.45 (0.20, 0.71), systolic blood pressure (mmHg) 8.9 (5.8, 12.0), and exercise capacity (BEEP test maximum level -1.2 (-1.7, -0.7)), all p < 0.001]. The association between being overweight with poorer cardiometabolic health strengthened with age. INTERPRETATION: The catch-up in weight and BMI by young adulthood in survivors born EP may not be desirable as it is associated with poorer cardiometabolic health. The associations of being overweight from mid-childhood with poorer cardiometabolic hea
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- 2023
5. Effect of yoga on health-related outcomes in people at risk of fractures: a systematic review
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Kim, K, Bartley, J, Ashe, MC, Bardai, Z, Butt, DA, Chilibeck, PD, Ponzano, M, Rodrigues, IB, Stapleton, J, Thabane, L, Wark, JD, Giangregorio, L, Kim, K, Bartley, J, Ashe, MC, Bardai, Z, Butt, DA, Chilibeck, PD, Ponzano, M, Rodrigues, IB, Stapleton, J, Thabane, L, Wark, JD, and Giangregorio, L
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We summarized the effects of yoga on health-related outcomes and adverse events in men and postmenopausal women ≥50 years-old at increased risk of fracture, to inform the updated Osteoporosis Canada clinical practice guidelines. Six databases were searched for observational studies, randomized controlled trials and case series. Certainty of evidence was assessed using the Grading of Recommendations, Assessment, Development and Evaluation handbook. Nine studies were included and reported using narrative syntheses due to the limited available evidence. Overall, the available evidence was of very low certainty. There was no effect of yoga on health-related quality of life in randomized trials. Effects on other health-related outcomes were mixed or not available in the literature. Five studies reported no adverse events directly related to the study intervention, and 2 studies did not report whether adverse events occurred. However, 2 case series reported vertebral fractures related to yoga participation, possibly due to excessive spinal flexion. Due to the limited and very low certainty evidence, guideline developers will need to draw indirect evidence from yoga studies among middle aged or older adults that are not at fracture risk. PROSPERO: CRD42019124898. Novelty: Evidence in general was of very low certainty. Yoga had no effect on health-related quality of life in randomized trials. Evidence was mixed or unavailable for other outcomes. Case studies reported yoga poses involving spinal flexion coincided with incidents of vertebral compression fracture among older adults with increased fracture risk.
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- 2022
6. Denosumab for the treatment and prevention of postmenopausal osteoporosis
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Bennett, TG, Le Marshall, K, Khan, F, Wark, JD, Brand, C, Bennett, TG, Le Marshall, K, Khan, F, Wark, JD, and Brand, C
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- 2021
7. The Vitamin D in Pregnancy Study: a prospective prebirth cohort in southern Australia
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Hyde, NK, Brennan-Olsen, SL, Wark, JD, Hosking, SM, Vuillermin, PJ, Williams, LJ, Pasco, JA, Hyde, NK, Brennan-Olsen, SL, Wark, JD, Hosking, SM, Vuillermin, PJ, Williams, LJ, and Pasco, JA
- Abstract
PURPOSE: The Vitamin D in Pregnancy Study is a long-term ongoing cohort study. It was conceived to explore relationships between maternal vitamin D status in pregnancy and offspring growth and development, and has since diversified to include a wide range of physical and mental health exposures and outcomes. PARTICIPANTS: Recruitment was from the University Hospital Geelong (Barwon Health) antenatal clinic, Geelong, Victoria, Australia, between 2002 and 2004. 475 women were initially recruited, which resulted in 400 eligible mother-child pairs at birth. FINDINGS TO DATE: The cohort has been followed up twice in pregnancy, at birth, and 1 year, 6 years and 11 years post birth. The study has reported an association between vitamin D in pregnancy and musculoskeletal health and body composition in the children. FUTURE PLANS: Subject to funding, there will be a prospective young adult follow-up. This profile aims to foster both cross-national and international collaborations with both existing and future data collection.
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- 2020
8. Bone Health in Rats With Temporal Lobe Epilepsy in the Absence of Anti-Epileptic Drugs
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Brady, RD, Wong, KR, Robinson, DL, Mychasiuk, R, McDonald, SJ, D'Cunha, RA, Yamakawa, GR, Sun, M, Wark, JD, Lee, PVS, O'Brien, TJ, Casillas-Espinosa, PM, Shultz, SR, Brady, RD, Wong, KR, Robinson, DL, Mychasiuk, R, McDonald, SJ, D'Cunha, RA, Yamakawa, GR, Sun, M, Wark, JD, Lee, PVS, O'Brien, TJ, Casillas-Espinosa, PM, and Shultz, SR
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Rationale: Epilepsy patients often exhibit reduced bone mineral density and are at an increased risk of bone fracture. Whether these bone abnormalities are due to the use of anti-epileptic drugs (AED’s) or the disease itself is unknown. For example, although decreased bone health in epilepsy patients is generally attributed to the use of AED’s, seizures can also trigger a number of physiological processes that have the potential to affect bone. Therefore, to assess whether bone abnormalities occur in epilepsy in the absence of AED’s, the current study investigated mechanical characteristics and trabecular bone morphology in rats with chronic temporal lobe epilepsy. Methods: Ten-week old male Wistar rats underwent kainic acid-induced status epilepticus (SE; n = 7) or a sham procedure (n = 9). Rats were implanted with EEG recording electrodes at nine weeks post-SE, and video-EEG was continuously recorded for one week at 10- and 22-weeks post-SE to confirm that SE rats had spontaneous seizures. Open-field testing to assess locomotion was conducted at 23-weeks post-SE. At 24-weeks post-SE, rats were euthanized and tibia were extracted to determine trabecular morphology by micro-computed tomography (µCT), while femurs were used to investigate mechanical properties via 3-point bending. Results: All post-SE rats had spontaneous seizures at 10- and 22-weeks post-SE, while none of the sham rats had seizures. µCT trabecular analysis of tibia revealed no differences in total volume, bone volume, bone volume fraction, trabecular number, or trabecular separation between post-SE or sham rats, although post-SE rats did have increased trabecular thickness. There were also no group differences in total distance travelled in the open field suggesting that activity levels did not account for the increased trabecular thickness. In addition, no differences in mechanical properties of femurs were observed between the two groups. Conclusion: There was a lack of overt bone abnormalities in
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- 2019
9. Impact of extreme prematurity or extreme low birth weight on young adult health and well-being: the Victorian Infant Collaborative Study (VICS) 1991-1992 Longitudinal Cohort study protocol
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Cheong, JLY, Wark, JD, Cheung, MM, Irving, L, Burnett, AC, Lee, KJ, Garland, SM, Smallwood, D, Patton, GC, Haikerwal, A, Doyle, LW, Cheong, J, Anderson, C, Anderson, P, Bear, M, Boland, R, Burnett, A, Callanan, C, Carse, E, Charlton, M, Clarke, M, Courtot, J, Davis, N, Doyle, L, Duff, J, Ellis, R, Hickey, L, Hayes, M, Josev, E, Kelly, E, McDonald, M, McInnes, E, Novella, B, Olsen, J, Opie, G, Roberts, G, Scott, K, Spittle, A, Stevens, P, Turner, A-M, Cheong, JLY, Wark, JD, Cheung, MM, Irving, L, Burnett, AC, Lee, KJ, Garland, SM, Smallwood, D, Patton, GC, Haikerwal, A, Doyle, LW, Cheong, J, Anderson, C, Anderson, P, Bear, M, Boland, R, Burnett, A, Callanan, C, Carse, E, Charlton, M, Clarke, M, Courtot, J, Davis, N, Doyle, L, Duff, J, Ellis, R, Hickey, L, Hayes, M, Josev, E, Kelly, E, McDonald, M, McInnes, E, Novella, B, Olsen, J, Opie, G, Roberts, G, Scott, K, Spittle, A, Stevens, P, and Turner, A-M
- Abstract
INTRODUCTION: Infants born extremely preterm (EP, <28 weeks' gestation) or with extremely low birth weight (ELBW,<1000 g) in the era when surfactant has been available clinically are at high risk of health and developmental problems in childhood and adolescence. However, how their health and well-being may be affected in adulthood is not well known. This study aims to compare between EP/ELBW and normal birthweight (NBW) controls: (1) physical health, mental health and socioemotional functioning at 25 years of age and (2) trajectories of these outcomes from childhood to adulthood. In addition, this study aims to identify risk factors in pregnancy, infancy, childhood and adolescence for poor physical health and well-being in EP/ELBW young adults. METHODS AND ANALYSIS: The Victorian Infant Collaborative Study (VICS) is a prospective geographical cohort of all EP/ELBW survivors to 18 years of age born in the State of Victoria, Australia, from 1 January 1991 to 31 December 1992 (n=297) and contemporaneous term-born/NBW controls (n=262). Participants were recruited at birth and followed up at 2, 5, 8 and 18 years. This 25-year follow-up includes assessments of physical health (cardiovascular, respiratory and musculoskeletal), mental health and socioemotional functioning. Outcomes will be compared between the birth groups using linear and logistic regression, fitted using generalised estimating equations (GEEs). Trajectories of health outcomes from early childhood will be compared between the birth groups using linear mixed-effects models. Risk factors for adult outcomes will be assessed using linear and logistic regression (fitted using GEEs). ETHICS AND DISSEMINATION: This study was approved by the Human Research Ethics Committees of the Royal Women's Hospital, Mercy Hospital for Women, Monash Medical Centre and the Royal Children's Hospital, Melbourne. Study outcomes will be disseminated through conference presentations, peer-reviewed publications, the internet and soci
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- 2019
10. Treadmill Exercise before and during Pregnancy Improves Bone Deficits in Pregnant Growth Restricted Rats without the Exacerbated Effects of High Fat Diet
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Anevska, K, Mahizir, D, Briffa, JE, Jefferies, AJ, Wark, JD, Grills, BL, Brady, RD, McDonald, SJ, Wlodek, ME, Romano, T, Anevska, K, Mahizir, D, Briffa, JE, Jefferies, AJ, Wark, JD, Grills, BL, Brady, RD, McDonald, SJ, Wlodek, ME, and Romano, T
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Growth restriction programs adult bone deficits and increases the risk of obesity, which may be exacerbated during pregnancy. We aimed to determine if high-fat feeding could exacerbate the bone deficits in pregnant growth restricted dams, and whether treadmill exercise would attenuate these deficits. Uteroplacental insufficiency was induced on embryonic day 18 (E18) in Wistar Kyoto (WKY) rats using bilateral uterine vessel ligation (restricted) or sham (control) surgery. The F1 females consumed a standard or high-fat (HFD) diet from 5 weeks, commenced treadmill exercise at 16 weeks, and they were mated at 20 weeks. Femora and plasma from the pregnant dams were collected at post-mortem (E20) for peripheral quantitative computed tomography (pQCT), mechanical testing, histomorphometry, and plasma analysis. Sedentary restricted females had bone deficits compared to the controls, irrespective of diet, where such deficits were prevented with exercise. Osteocalcin increased in the sedentary restricted females compared to the control females. In the sedentary HFD females, osteocalcin was reduced and CTX-1 was increased, with increased peak force and bending stress compared to the chow females. Exercise that was initiated before and continued during pregnancy prevented bone deficits in the dams born growth restricted, whereas a HFD consumption had minimal bone effects. These findings further highlight the beneficial effects of exercise for individuals at risk of bone deficits.
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- 2019
11. Using Mobile Technology to Improve Bone-Related Lifestyle Risk Factors in Young Women With Low Bone Mineral Density: Feasibility Randomized Controlled Trial.
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Subasinghe, AK, Garland, SM, Gorelik, A, Tay, I, Wark, JD, Subasinghe, AK, Garland, SM, Gorelik, A, Tay, I, and Wark, JD
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BACKGROUND: Poor bone health in adolescent and young adult females is a growing concern. Given the widespread use of mobile phones in this population, mobile health (mHealth) interventions may help improve health behaviors related to bone health in young women. OBJECTIVE: The goal of the study was to determine the acceptability and feasibility of an mHealth intervention called Tap4Bone in improving health behaviors associated with the risk of osteoporosis in young women. METHODS: The Tap4Bone mHealth intervention comprised the use of mobile phone apps, short messaging service (text messaging), and Web emails to encourage health behavior changes. The education group received osteoporosis prevention education leaflets. Changes in the bone health-related behaviors exercise, smoking, and calcium intake were assessed. User experiences and acceptance of the app were collected through focus group interviews. RESULTS: A total of 35 (22 completed, mean age 23.1 [SD 1.8] years) were randomized to either the mobile phone (intervention n=18) or education (control n=17) group. Although there were trends toward improvement in calcium intake, sports activity, and smoking behaviors in the mHealth intervention group compared to the education group, these were not statistically significant. CONCLUSIONS: The Tap4Bone mHealth intervention was shown to be acceptable and feasible in subsets of the participants. The intervention should be improved upon using participant feedback to improve functionality. Findings from this study may aid in the development and modification of health care apps to reduce participant attrition.
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- 2019
12. Polycystic ovarian syndrome: Prevalence and impacton the wellbeing of Australian women aged 16-29years
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Varanasi, LC, Subasinghe, A, Jayasinghe, YL, Callegari, ET, Garland, SM, Gorelik, A, Wark, JD, Varanasi, LC, Subasinghe, A, Jayasinghe, YL, Callegari, ET, Garland, SM, Gorelik, A, and Wark, JD
- Abstract
BACKGROUND: Polycystic ovarian syndrome (PCOS) is the most common condition among reproductive-aged women. However, its exact prevalence is unknown. AIMS: To determine the prevalence of PCOS in Australian women aged 16-29 years using the National Institutes of Health (NIH) criteria compared to self-reported PCOS, to compare co-morbidities between the groups and to determine the most distressing aspect of a diagnosis of PCOS for these young women. MATERIALS AND METHODS: Participants were recruited from the Young Female Health Initiative (YFHI) and Safe-D studies. Participants completed questionnaires, physical examinations and blood tests from 2012 to 2016. In March 2016, two supplementary questionnaires were distributed: the first, comprising questions on reproductive health and impact of diagnosis, was sent to participants who self-reported having PCOS in the original studies. The second, comprising general reproductive health questions, was sent to the remainder. RESULTS: The prevalence of PCOS, according to the NIH criteria, was 12% (31/254), while the prevalence of self-reported PCOS was 8% (23/300). Only 35% (8/23) of those with self-reported PCOS actually fulfilled the NIH criteria for PCOS. Comorbidities were relatively similar among groups. Finally, approximately 65% (15/23) were unhappy or worried about their initial PCOS diagnosis, with 72% (13/18) stating fertility concerns were the most distressing aspect of their diagnosis. CONCLUSIONS: The lack of consistent and accurate diagnosis of PCOS in young women potentially leads to over-diagnosis. This creates unnecessary fears of health complications, particularly infertility. Therefore, we recommend the development of standardised criteria with set parameters that allow for better diagnosis of PCOS.
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- 2018
13. Informing the Design of a health virtual community of practice: a knowledge translation approach
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Murad, A, Bosua, R, Chang, S, Lederman, R, Wark, JD, Murad, A, Bosua, R, Chang, S, Lederman, R, and Wark, JD
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Access to knowledge forms an integral part of the continuous learning processes of medical and other health professionals throughout their career. Modern technologies have become instrumental in ex-tending learning processes to the online realm, particularly through the use of social media technologies. Health Practitioners’ (HPs) exploitation of online social media technologies for online learning and knowledge sharing purposes has evolved into Virtual Communities of Practice (VCoP). However, there is limited research on the types of knowledge being shared to fulfil the notion of ‘knowledge-into-action’ in the healthcare domain. In addition, little is known of the use of online social media technologies as a catalyst to achieve ‘knowledge-into-action’. This research in progress paper extends the conceptual model from our previous work and draws on current literature that identifies the types of knowledge being shared in a Health VCoP. We discuss some of our data using our conceptual lens as a preliminary analysis of our work. Expected outcomes are a new extended conceptual model that fulfils the notion of ‘knowledge-into-action’ that informs the design of an IT artefact based on types of knowledge being shared in a Health VCoP.
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- 2018
14. Vitamin D during pregnancy and offspring body composition: a prospective cohort study
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Hyde, NK, Brennan-Olsen, SL, Wark, JD, Hosking, SM, Holloway-Kew, KL, Pasco, JA, Hyde, NK, Brennan-Olsen, SL, Wark, JD, Hosking, SM, Holloway-Kew, KL, and Pasco, JA
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BACKGROUND: Evidence regarding the association between gestational vitamin D status and offspring body composition during childhood is inconsistent. Therefore, we aimed to determine the association between maternal vitamin D and offspring lean and fat mass in the Vitamin D in Pregnancy birth cohort. METHODS: Subjects were mother-child pairs recruited from the Australian-based Vitamin D in Pregnancy cohort study. Mothers were recruited before 16 weeks' gestation and provided a blood sample at both recruitment and at 28-32 weeks' gestation. Serum vitamin D [25(OH)D] was measured by radioimmunoassay (Tyne and Wear, UK). Offspring lean and fat mass were quantified by using dual-energy X-ray absorptiometry (GE Lunar Prodigy, Madison, WI, USA) at 11 years of age. RESULTS: Median maternal 25(OH)D levels were 55.9 (42.2-73.3) and 56.1 (43.6-73.9) at recruitment and 28-32 weeks' gestation, respectively. Maternal smoking was identified as an effect modifier in the association between maternal vitamin D status at recruitment and offspring body composition. In smokers, but not non-smokers, serum 25(OH)D status at recruitment was negatively associated with offspring fat mass percentage and positively associated with lean mass (both p < 0.05). There was no association with 25(OH)D status at 28-32 weeks' gestation. CONCLUSIONS: Maternal vitamin D status in early pregnancy, in smokers, is associated with offspring body composition. These important findings warrant confirmation in larger studies and trials.
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- 2018
15. P3.216 Assessing hpv genotype prevalence in infection and disease in young australian women following the introduction of a national vaccination program
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Garland, Suzanne, primary, Cornall, AM, additional, Brotherton, JML, additional, Osborne, SL, additional, Wrede, CD, additional, Wark, JD, additional, Saville, M, additional, Pyman, J, additional, Tan, J, additional, Callegari, ET, additional, Gertig, DM, additional, Jayasinghe, Y, additional, Malloy, M, additional, Pitts, M, additional, and Tabrizi, SN, additional
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- 2017
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16. Bone loss with antiepileptic drug therapy: a twin and sibling study
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Ahmad, BS, Petty, SJ, Gorelik, A, O'Brien, TJ, Hill, KD, Christie, JJ, Sambrook, PN, Wark, JD, Ahmad, BS, Petty, SJ, Gorelik, A, O'Brien, TJ, Hill, KD, Christie, JJ, Sambrook, PN, and Wark, JD
- Abstract
UNLABELLED: Changes in areal bone mineral density (aBMD) and other predictors of bone loss were evaluated in 48 same-sex twin/age-matched sibling pairs discordant for antiepileptic drug (AED) use. AED users had reduced BMD at the hip regions. Prolonged AED users had greater aBMD loss, predicting a higher risk of bone fragility. INTRODUCTION: To investigate the longitudinal associations of bone mineral measures with antiepileptic drug (AED) use, including enzyme-inducing (EIAED) and non-enzyme-inducing (NEIAED) types, and other predictors of bone loss in a study of 48 same-sex twin/age-matched sibling pairs (40 female, 8 male) discordant for AED use. METHODS: Using dual-energy X-ray absorptiometry (DXA), areal bone mineral density (aBMD) and content (BMC) at the hip regions, forearm, lumbar spine, and whole body were measured twice, at least 2 years apart. The mean within-pair difference (MWPD), MWPD%, and mean annual rate of aBMD change were adjusted for age, weight, and height. Predictors of bone loss were evaluated. RESULTS: AED users, compared to non-users, at baseline and follow-up, respectively, had reduced aBMD at the total hip (MWPD% 3.8, 4.4%), femoral neck (4.7, 4.5%), and trochanter regions (4.1, 4.6%) (p < 0.05). For the whole cohort, the annual rate of change in all aBMD/BMC (p > 0.05) regions did not differ within pairs. Nevertheless, EIAED users had greater aBMD loss than non-users (n = 20 pairs) at the total hip (1.7 vs. 0.3%, p = 0.013) and whole body regions (0.7% loss vs. 0.1% BMD gain, p = 0.019), which was not found in NEIAED-discordant pairs (n = 16). AED use >20 years predicted higher aBMD loss at the forearm (p = 0.028), whole body (p = 0.010), and whole body BMC (p = 0.031). CONCLUSIONS: AED users had reduced aBMD at the hip regions. Prolonged users and EIAED users had greater aBMD loss, predicting a higher risk of bone fragility. Further prospective studies of AED effects on bone microarchitecture are needed.
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- 2017
17. Health practitioner perceptions of using a health virtual community of practice for their continuing professional development
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Murad, A, Bosua, R, Pirotta, M, Lederman, R, Chang, S, Wark, JD, Murad, A, Bosua, R, Pirotta, M, Lederman, R, Chang, S, and Wark, JD
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- 2017
18. Determinants of bone mineral density in young Australian women; results from the Safe-D study
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Callegari, ET, Garland, SM, Gorelik, A, Wark, JD, Callegari, ET, Garland, SM, Gorelik, A, and Wark, JD
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UNLABELLED: The study aimed to explore determinants of bone parameters in young women. Most bone parameters were associated with height and lean mass. Bone parameters were not associated with vitamin D status. Future research should address whether interventions aimed at improving lean mass are beneficial to bone health in young women. INTRODUCTION: The implementation of prevention strategies during young adulthood may be crucial for osteoporosis prevention in later life, yet literature examining the determinants of bone health in premenopausal women is limited. We aimed to assess determinants of bone health, including serum 25-hydroxyvitamin D (25OHD), in females aged 16-25 years, living in Victoria, Australia, recruited through Facebook advertising. METHODS: Serum 25OHD was measured by liquid chromatography-tandem mass spectrometry and bone health was measured using dual-energy X-ray absorptiometry (DXA) and peripheral quantitative computed tomography (pQCT) in 326 participants. RESULTS: Mean (± standard deviation) serum 25OHD was 69 ± 28 nmol/L and the prevalence of vitamin D deficiency (serum 25OHD <50 nmol/L) was 26%. Seven percent of participants (n = 23) reported taking a vitamin D supplement. Two percent of participants had low lumbar spine bone mineral density (Z-score <-2.0), 5% at the hip and 7% at the femoral neck. Serum 25OHD levels were not associated with DXA bone parameters, nor with pQCT bone parameters. Most bone parameters were positively associated with height and lean mass. CONCLUSION: Vitamin D status was not associated with bone health in young women in the current study. Our findings suggest that targeting other modifiable factors, such as lean body mass, is likely to be beneficial to bone health in young women. Longitudinal studies examining the association between vitamin D status and bone health in young women are necessary to confirm our findings. In addition, whether raising 25OHD levels is advantageous for young women's bone health is y
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- 2017
19. Determinants of bone mineral density in young Australian women; results from the Safe-D study (vol 28, pg 2619, 2017)
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Callegari, ET, Garland, SM, Gorelik, A, Wark, JD, Callegari, ET, Garland, SM, Gorelik, A, and Wark, JD
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- 2017
20. Impaired bone and muscle development in young people treated with antiepileptic drugs
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Simm, PJ, Seah, S, Gorelik, A, Gilbert, L, Nuguid, J, Werther, GA, Mackay, MT, Freeman, JL, Petty, SJ, Wark, JD, Simm, PJ, Seah, S, Gorelik, A, Gilbert, L, Nuguid, J, Werther, GA, Mackay, MT, Freeman, JL, Petty, SJ, and Wark, JD
- Abstract
OBJECTIVE: Antiepileptic drugs (AEDs) are associated with reduced bone density, balance impairment, and increased fracture risk in adults. However, pediatric data are limited. Therefore, we aimed to examine bone, muscle, and balance outcomes in young patients taking AEDs. METHODS: We undertook a case-control study utilizing an AED exposure-discordant matched-pair approach. Subjects were aged 5-18 years with at least 12 months of AED exposure. Pairs were twins, nontwin siblings and first cousins, sex- and age-matched (to within 2 years), allowing for greater power than with unrelated control subjects. Dual energy x-ray absorptiometry (DXA), peripheral quantitative computed tomography (pQCT), and muscle force/balance were tested, with questionnaires were administered for bone health and epilepsy details. RESULTS: Twenty-three pairs were recruited, (median age 12.9 years [subjects] and 13.5 years [controls])-7 twin, 14 sibling, and 2 cousin pairs. Those taking AEDs had an increased prevalence of fractures (15 fractures in 8 subjects, compared with 4 fractures in 3 controls, p < 0.01). Trabecular volumetric bone mineral density (vBMD) measured by pQCT at the 4% site (tibia) was reduced by 14% (p = 0.03) in subjects. Subjects exerted a decreased maximum force compared to body weight (Fmax total/g) at the tibia. There were no differences seen in either bone mineral parameters measured by DXA or balance measures. SIGNIFICANCE: Young people taking AEDs reported more fractures and had reductions in tibial vBMD and lower limb muscle force compared to their matched controls. These findings suggest that further exploration of bone health issues of young patients on AED therapy is required. Longitudinal studies are required to confirm these changes in the muscle-bone unit and to further explore the clinical outcomes.
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- 2017
21. Prevalence and severity of dysmenorrhoea, and management options reported by young Australian women
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Subasinghe, AK, Happo, L, Jayasinghe, YL, Garland, SM, Gorelik, A, Wark, JD, Subasinghe, AK, Happo, L, Jayasinghe, YL, Garland, SM, Gorelik, A, and Wark, JD
- Abstract
BACKGROUND: Little is known about the severity of dysmenorrhoea and attitudes towards its management in young females. OBJECTIVE: The aim of this study was to evaluate the prevalence and severity of dysmenorrhoea in women aged 16-25 years. METHODS: Participants were recruited via targeted Facebook advertising and asked to complete an online questionnaire covering medications, menstruation and lifestyle-related themes. A follow-up questionnaire on dysmenorrhoea was also administered. RESULTS: The prevalence of dysmenorrhoea was 88% (n = 247, mean age 21.5 years, SD 2.6). Only 34% of participants reported consulting a healthcare provider about their pain, whereas 86% consulted other sources. Pain medication was used by 58% of the participants. Dysmenorrhoea was associated with interference with daily activities (P DISCUSSION: Dysmenorrhoea is highly prevalent among these women, with most indicating moderate to severe pain and a significant adverse impact on daily activities. Most women did not obtain information about dysmenorrhoea from healthcare providers, indicating the need for general practitioners to provide accurate information about dysmenorrhoea to young females.
- Published
- 2016
22. Improving Vitamin D Status and Related Health in Young Women: The Safe-D study - Part B
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Tabesh, M, Garland, SM, Gorelik, A, Nankervis, A, Maclean, S, Callegari, ET, Chang, S, Heffernan, K, Wark, JD, Tabesh, M, Garland, SM, Gorelik, A, Nankervis, A, Maclean, S, Callegari, ET, Chang, S, Heffernan, K, and Wark, JD
- Abstract
BACKGROUND: Vitamin D deficiency is highly prevalent and associated with increased risk of a number of chronic health conditions including cardiovascular disease, poor bone and muscle health, poor mental health, infection, and diabetes. Vitamin D deficiency affects millions of Australians, potentially causing considerable suffering, economic loss, and mortality. OBJECTIVE: To measure the effectiveness of a (1) mobile-based app (behavioral) and (2) pharmacological intervention to increase circulating 25-hydroxyvitamin D (serum 25 OHD) levels and health outcomes over 4 months of intervention compared with usual care in a cohort of young women with suboptimal serum 25 OHD levels (25-75 nmol/L). METHODS: Participants with 25 OHD levels 25 to 75 nmol/L are invited to participate in this study. Participants are randomized to one of three groups in 1:1:1 ratio: a mobile phone-based application, vitamin D supplementation (1000 IU/day), and a control group. Data collection points are at baseline, 4, and 12 months post baseline with the major endpoints being at 4 months. A wide-range of information is collected from participants throughout the course of this study. General health, behavioral and demographic information, medications, smoking, alcohol and other substance use, health risk factors, nutrition, eating patterns and disorders, and mental health data are sourced from self-administered, Web-based surveys. Clinical data include anthropometric measurements, a silicone skin cast of the hand, cutaneous melanin density, bone mineral density, and body composition scans obtained through site visits. Main analyses will be conducted in two ways on an intention-to-treat (ITT) basis using the last observation carried forward approach as an imputation for missing data, and on a per protocol basis to compare the intervention arms against the control group at 4 and 12 months. RESULTS: Publication of trial results is anticipated in 2017. CONCLUSIONS: The study will allow assessment o
- Published
- 2016
23. Guidelines and Recommendations for Developing Interactive eHealth Apps for Complex Messaging in Health Promotion
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Heffernan, KJ, Chang, S, Maclean, ST, Callegari, ET, Garland, SM, Reavley, NJ, Varigos, GA, Wark, JD, Heffernan, KJ, Chang, S, Maclean, ST, Callegari, ET, Garland, SM, Reavley, NJ, Varigos, GA, and Wark, JD
- Abstract
BACKGROUND: The now ubiquitous catchphrase, "There's an app for that," rings true owing to the growing number of mobile phone apps. In excess of 97,000 eHealth apps are available in major app stores. Yet the effectiveness of these apps varies greatly. While a minority of apps are developed grounded in theory and in conjunction with health care experts, the vast majority are not. This is concerning given the Hippocratic notion of "do no harm." There is currently no unified formal theory for developing interactive eHealth apps, and development is especially difficult when complex messaging is required, such as in health promotion and prevention. OBJECTIVE: This paper aims to provide insight into the creation of interactive eHealth apps for complex messaging, by leveraging the Safe-D case study, which involved complex messaging required to guide safe but sufficient UV exposure for vitamin D synthesis in users. We aim to create recommendations for developing interactive eHealth apps for complex messages based on the lessons learned during Safe-D app development. METHODS: For this case study we developed an Apple and Android app, both named Safe-D, to safely improve vitamin D status in young women through encouraging safe ultraviolet radiation exposure. The app was developed through participatory action research involving medical and human computer interaction researchers, subject matter expert clinicians, external developers, and target users. The recommendations for development were created from analysis of the development process. RESULTS: By working with clinicians and implementing disparate design examples from the literature, we developed the Safe-D app. From this development process, recommendations for developing interactive eHealth apps for complex messaging were created: (1) involve a multidisciplinary team in the development process, (2) manage complex messages to engage users, and (3) design for interactivity (tailor recommendations, remove barriers to use, d
- Published
- 2016
24. Young people's experiences of persistent musculoskeletal pain, needs, gaps and perceptions about the role of digital technologies to support their co-care: a qualitative study
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Slater, H, Jordan, JE, Chua, J, Schutze, R, Wark, JD, Briggs, AM, Slater, H, Jordan, JE, Chua, J, Schutze, R, Wark, JD, and Briggs, AM
- Abstract
OBJECTIVE: To investigate young people's experiences of persistent musculoskeletal pain, including care needs and current service gaps as well as perceptions about the role of digital technologies to support their co-care. METHODS: A qualitative study employing two independent data collection modes: in-depth individual semistructured interviews and focus groups. SETTING: Community settings throughout Australia. PARTICIPANTS: Participants were included if they had experienced persistent musculoskeletal pain of >3-month duration with an average of ≥3 on the visual analogue scale over the preceding 3 months, including non-specific conditions (eg, low back pain) and specific conditions (eg, juvenile idiopathic arthritis and other systemic arthritides), with/without pre-existing or current diagnosed mental health conditions. 23 young people (87.0% women; mean (SD) age: 20.8 (2.4) years) from across 6 Australian jurisdictions participated. Almost two-thirds of participants with persistent musculoskeletal pain reported comorbid mental health conditions. MAIN OUTCOME MEASURES: Inductive and deductive approaches to analyse and derive key themes from verbatim transcripts. RESULTS: Participants described their daily experiences of living with persistent musculoskeletal pain, their fears and the challenges imposed by the invisibility of pain, and the two-way relationship between their pain and mental well-being. A lack of relevant and accessible information and resources tailored to young people's unique needs, integrated and youth-relevant healthcare services and adequately skilled healthcare practitioners were identified as key care gaps. Participants strongly advocated for the use of digital technologies to improve access to age-appropriate resources and support for co-care. CONCLUSIONS: Young people living with persistent musculoskeletal pain described the absence of age-appropriate pain services and clearly articulated their perceptions on the role of, and opportunities pr
- Published
- 2016
25. Osteoporosis Associated with Epilepsy and the Use of Anti-Epileptics-a Review
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Petty, SJ, Wilding, H, Wark, JD, Petty, SJ, Wilding, H, and Wark, JD
- Abstract
The increased rate of fractures associated with epilepsy has been long recognised but remains incompletely understood. Study quality and study results have varied, with some but not all studies showing bone diseases including osteoporosis and/or osteomalacia, and a high prevalence of vitamin D insufficiency and deficiency are also noted. Falls risk can also be higher in patients with epilepsy taking anti-epileptic medications, potentially leading to fracture. Larger research collaborations are recommended to further advance understanding in this field, particularly to examine underlying genetic and pharmacogenomic associations of epilepsy and anti-epileptic medication usage and its association with bone diseases and fractures, as well as further investigation into optimal management of bone health in epilepsy.
- Published
- 2016
26. P03.16 Sexual abuse reported by young australian women
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Garland, SM, primary, Jayasinghe, Y, additional, Callegari, ET, additional, Gorelik, A, additional, Subasinghe, AK, additional, and Wark, JD, additional
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- 2015
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27. P3.216 Assessing hpv genotype prevalence in infection and disease in young australian women following the introduction of a national vaccination program
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Garland, Suzanne, Cornall, AM, Brotherton, JML, Osborne, SL, Wrede, CD, Wark, JD, Saville, M, Pyman, J, Tan, J, Callegari, ET, Gertig, DM, Jayasinghe, Y, Malloy, M, Pitts, M, and Tabrizi, SN
- Abstract
IntroductionThe National HPV Vaccination Program, utilising the quadrivalent HPV vaccine, was implemented in Australia in 2007. As the first country to introduce this scheme, Australia is ideally placed to identify changes in HPV genoprevalence in a vaccinated population, as well as in cervical intraepithelial neoplasia grade 3 (CIN3) lesions.MethodsThe VACCINE (Vaccine Against Cervical Cancer Impact and Effectiveness) study was designed to assess prevalence of vaccine-targeted HPV genotype infections. In sub-study A, sexually active Victorian women aged 18–25 years, recruited through targeted social media advertising on Facebook, were asked to complete an online questionnaire and provide a self-collected vaginal swab for HPV DNA genotyping. The National HPV Vaccination Program Register (NHVPR) was utilised to verify self-reported vaccination status. In sub-study B, causal HPV genotypes in 529 CIN3 cases among vaccine-eligible young women were determined using laser capture microdissection and compared with pre-vaccine era data.ResultsIn sub-study A, 1095 participants were recruited (18% were virginal so no swab was collected) and 774 (77%) completed all study requirements. Vaccine-targeted HPV genotypes were detected in only 13 samples (1.7%); 11 HPV16 and two HPV6: none were in participants vaccinated prior to sexual debut. In sub-study B, 333 women (62.9%) had a HPV16/18 positive CIN3 detected. The pre-vaccine era population included 98 women aged 18–25, and 115 women aged 26–32, recruited between 2001 and 2005. Compared to the pre-vaccine cohort, the proportion of HPV16/18 positive CIN3 was significantly lower in the post-vaccine 18–25 year old group (71.4% vs 54.9%, p=0.009), but was not significantly different in the 26–32 year old age group (61.7% vs 65.9%, p=0.409). ConclusionThe VACCINE study demonstrates that vaccine-related HPV genotype prevalence is remarkably low amongst vaccine-eligible Victorian women, and also demonstrates a reduction in the proportion of CIN3 caused by vaccine preventable HPV types in younger, vaccine-eligible women. Support:I Professor Suzanne Garland, have received Grants to my institution from Commonwealth Department of Health for HPV genoprevalance surveillance post vaccination, Merck and GSK (GlaxoSmithKline) to perform phase 3 clinical vaccine trials: Merck to evaluate HPV in RRP post vaccination programme, CSL for HPV in cervical cancer study, and VCA (Victoria Cancer Agency) for a study on effectiveness of public health HPV vaccine study plus a study on associations of early onset cancers. I have received speaking fees from MSD and SPMSD for work performed in my personal time. Merck paid for travel and accommodation to present at HPV Advisory board meetings.
- Published
- 2017
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28. Developing and Evaluating an Interactive, Case-Based, Web-Based Active Learning Tool for Primary Care Physicians (Community Fracture Capture Learning Hub): Protocol for an Acceptability and Engagement Study.
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Fathalla AM, Chiang C, Audehm R, Gorelik A, Chang S, Yates CJ, Snow S, Barmanray R, Price S, Collins L, and Wark JD
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- Humans, Internet, Problem-Based Learning methods, Male, Pilot Projects, Female, Adult, Middle Aged, Physicians, Primary Care education
- Abstract
Background: The lack of osteoporosis treatment initiation after fragility fractures is a significant gap, especially in primary care. It is unclear whether barriers for primary care physicians (PCPs) arise from uncertainty about investigations, treatment initiation, or medication side effects. Key questions remain about whether active learning platforms improve treatment initiation rates better than passive methods and how PCP demographics affect learning outcomes. With PCPs increasingly using web-based platforms for continuing professional development due to time constraints and heavy workloads, an interactive community fracture capture (CFC) tool may serve as an effective alternative to in-person learning. Our CFC pilot study tested this new program's design and content, showing promising potential., Objective: We aim to evaluate the interactive, case-based, web-based CFC Learning Hub, examining user acceptance and engagement with the platform, focusing on participants' interactions, satisfaction levels, and overall experience., Methods: Participating PCPs are recruited through Praxhub, a web-based medical education platform, and provide electronic consent for data use after deidentification. They have been allocated into small groups (12-20 members) and join the CFC Learning Hub, a secure web-based community. This hub includes a web-based discussion forum with participant-contributed case studies and a knowledge repository. Over the 6-week program, participants will receive weekly modules with instructions, resources, discussion threads, and quizzes, along with interactive discussions moderated by experienced PCPs and physicians. The platform also hosts web-based surveys that, in combination with platform analytics, allow assessment of baseline knowledge gaps, level of activity or engagement, and improvements following the course completion. This study protocol demonstrates the creation and proposed evaluation of the CFC Learning Hub, featuring an interactive, case-based, small-group web-based learning platform equipped with flexibly scheduled, tailored modules to address the fracture treatment gap within the community. Both qualitative (via thematic analysis) and quantitative (by using 2-tailed paired t tests, Wilcoxon signed rank tests, and multivariable regression analysis) analyses will be used to assess levels of engagement and acceptance and changes in PCPs' knowledge and confidence after engagement with the CFC Learning Hub., Results: Recruitment of participants started in May 2022. Data collection, analysis, and reporting will be completed following the completion of four 6-week cycles of the program., Conclusions: The study described in this protocol will provide important insights into the function and effectiveness of the CFC Learning Hub. This information will guide the expansion of the program. This initiative offers a simple digital solution for promoting current bone health practices tailored to PCPs' needs and thereafter to expand the rollout of the e-learning hub and implementation of fracture liaison models at a primary care level in Australia and elsewhere. Future applications may extend to other clinical areas and professions., International Registered Report Identifier (irrid): DERR1-10.2196/57511., (©Ahmed M Fathalla, Cherie Chiang, Ralph Audehm, Alexandra Gorelik, Shanton Chang, Christopher J Yates, Steve Snow, Rahul Barmanray, Sarah Price, Lucy Collins, John D Wark. Originally published in JMIR Research Protocols (https://www.researchprotocols.org), 25.02.2025.)
- Published
- 2025
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29. The behavior patterns of giraffes ( Giraffa camelopardalis ) housed across 18 US zoos.
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Wark JD and Cronin KA
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- Animals, Male, Female, United States, Stereotyped Behavior, Feeding Behavior, Animal Welfare, Animals, Zoo, Giraffes, Behavior, Animal
- Abstract
Interpreting animal behavior in the context of welfare can be inherently challenging given the limited behavior data available for many species housed in zoos. Describing common behavior patterns may help animal managers by providing additional background when assessing the individuals in their care. Although valuable, these efforts require a large, collaborative approach and have, consequently, been rare. Here, we share the behavior patterns of zoo-housed giraffes, an iconic and commonly housed megafauna in zoos. Behavior data were evaluated for 66 giraffes living across 18 AZA-accredited zoos using the ZooMonitor Community platform. Data were recorded during 10-minute observation sessions. Observations were conducted during daytime hours over the course of approximately one year at each zoo (mean total observed time per individual = 23.2 hr). The most common behaviors observed were feeding/ foraging behaviors, which accounted for 38.6% of the mean visible time budget across giraffes. Time spent in these behaviors varied by individual and ranged from 14.3% to 69.3% of visible time. Stereotypic behaviors occurred in all study individuals, with oral stereotypic behaviors being most common. Although prevalent, stereotypic behaviors varied considerably across giraffes, with some individuals exhibiting these behaviors only on a few occasions to an individual that exhibited these behaviors once every few minutes. This study provides a robust evaluation of giraffe behavior across zoos to present a picture of their common behavior patterns in managed care. We hope these multi-institutional behavior patterns can provide perspective to aid animal managers in evaluating giraffes in their care., Competing Interests: The authors declare there are no competing interests., (©2024 Wark and Cronin.)
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- 2024
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30. Gestational vitamin D and offspring fracture risk: do associations persist into mid adolescence?
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Percival MA, Anderson KB, Pasco JA, Hosking SM, Williams LJ, Holloway-Kew KL, Wark JD, and Hyde NK
- Subjects
- Humans, Female, Pregnancy, Adolescent, Male, Risk Factors, Prenatal Exposure Delayed Effects, Adult, Cohort Studies, Australia epidemiology, Vitamin D Deficiency complications, Vitamin D Deficiency blood, Child, Maternal Nutritional Physiological Phenomena, Vitamin D blood, Vitamin D analogs & derivatives, Fractures, Bone epidemiology, Fractures, Bone etiology, Fractures, Bone blood
- Abstract
Background: Previous studies report that maternal vitamin D exposure during pregnancy is associated with offspring later-life bone health. A study in the Vitamin D in Pregnancy (VIP) cohort reported sexually dimorphic effects of maternal 25-hydroxyvitamin-D (25(OH)D) and offspring fracture profiles at 10 years of age. We, therefore, aimed to determine associations between maternal 25(OH)D status and offspring fracture risk at 16 years of age in this cohort., Methods: In total, 475 mother-child pairs were recruited to the VIP study in southeastern Australia. Maternal serum samples were obtained at recruitment (<16 weeks' gestation) and/or 28-32 weeks' gestation and analysed for 25(OH)D. Radiologically-confirmed incident fractures in children were ascertained from date of birth (2002-2004) until July 16, 2019. Cox proportional hazard models were used to determine associations between maternal 25(OH)D and childhood fracture risk, and final models included maternal age at recruitment, offspring sex, birth weight, gestation length and season of 25(OH)D sample., Results: Data were available for 400 children (mean age 16.1 years). There were 122 (30.5%) children who sustained at least one fracture. Higher maternal 25(OH)D (per 10 nmol/L) in early gestation was associated with a decreased fracture risk in boys (HR 0.87; 95% CI: 0.77, 0.99); the pattern was reversed in girls (HR 1.10; 95% CI 1.00, 1.22). At late gestation, higher maternal 25(OH)D was associated with an increased fracture risk in girls (HR 1.14; 95% CI: 1.04, 1.24)., Conclusions: While our findings must be interpreted within the constraints of our limitations, we report that the contradictory risk profiles observed at early childhood in this cohort remain in adolescence., (© 2024. The Author(s).)
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- 2024
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31. Bone Density and Trabecular Bone Score Decline Rapidly in the First Year After Bone Marrow Transplantation with a Marked Increase in 10-Year Fracture Risk.
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Gong JY, Chiang C, Wark JD, Ritchie D, Panek-Hudson Y, Le MV, Limbri L, Fabila N, Fourlanos S, and Yates CJ
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- Humans, Male, Cancellous Bone, Bone Marrow Transplantation adverse effects, Absorptiometry, Photon, Lumbar Vertebrae, Femur Neck, Risk Assessment, Bone Density, Osteoporotic Fractures epidemiology
- Abstract
As outcomes from allogeneic bone marrow transplantation (BMT) have improved, prevention of long-term complications, such as fragility fractures, has gained importance. We aimed to assess areal bone mineral density (aBMD) and trabecular bone score (TBS) changes post BMT, and determine their relationship with fracture prevalence. Patients who attended the Royal Melbourne Hospital (RMH) BMT clinic between 2005-2021 were included. Patient characteristics and dual-energy X-ray absorptiometry (DXA) values were collected from the electronic medical record and a survey. TBS iNsight™ was used to calculate TBS for DXA scans performed from 2019 onwards. 337 patients with sequential DXAs were eligible for inclusion. Patients were primarily male (60%) and mean age ± SD was 45.7 ± 13.4 years. The annualised decline in aBMD was greater at the femoral neck (0.066g/cm
2 (0.0038-0.17)) and total hip (0.094g/cm2 (0.013-0.19)), compared to the lumbar spine (0.049g/cm2 (- 0.0032-0.16)), p < 0.0001. TBS declined independently of aBMD T-scores at all sites. Eighteen patients (5.3%) sustained 19 fractures over 3884 person-years of follow-up post-transplant (median follow-up 11 years (8.2-15)). This 5.3% fracture prevalence over the median 11-year follow-up period is higher than what would be predicted with FRAX® estimates. Twenty-two patients (6.5%) received antiresorptive therapy, and 9 of 18 (50%) who fractured received or were on antiresorptive therapy. In BMT patients, aBMD and TBS decline rapidly and independently in the first year post BMT. However, FRAX® fracture probability estimates incorporating these values significantly underestimate fracture rates, and antiresorptive treatment rates remain relatively low., (© 2024. Crown.)- Published
- 2024
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32. Transition to Adulthood for Extremely Preterm Survivors.
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Pigdon L, Mainzer RM, Burnett AC, Anderson PJ, Roberts G, Patton GC, Cheung M, Wark JD, Garland SM, Albesher RA, Doyle LW, and Cheong JLY
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- Infant, Newborn, Humans, Longitudinal Studies, Prospective Studies, Survivors, Victoria epidemiology, Infant, Extremely Premature, Infant, Extremely Low Birth Weight
- Abstract
Objective: To compare transition into adulthood of survivors born extremely preterm (EP; <28 weeks' gestation) or extremely low birth weight (ELBW; <1000 g) in the postsurfactant era with term-born controls., Methods: Prospective longitudinal cohort study of all EP/ELBW survivors born in the State of Victoria, Australia between January 1, 1991 and December 31, 1992 and matched term-born controls. Outcomes include educational attainment, employment, financial status, romantic partnering, living arrangements, parenthood, physical health and mental health, risk-taking behaviors, life satisfaction, and interpersonal relationships at 25 years., Results: Data were available from 165 EP/ELBW and 127 control participants. Overall, there was little evidence for differences between the EP/ELBW and control groups on most comparisons after adjustment for social risk and multiple births. However, compared with controls, the EP/ELBW group was more likely to have their main source of income from government (adjusted odds ratio [aOR] 2.49, 95% confidence interval [CI] 1.21-5.13; P = .01) and to have never moved out of the parental home (aOR 2.13, 95% CI 1.27-3.58; P = .01), and fewer had ever engaged in smoking (aOR 0.52, 95% CI 0.28-0.98; P = .04), binge drinking (aOR 0.41, 95% CI 0.18-0.93; P = .03), or street drugs (aOR 0.56, 95% CI 0.32-0.98; P = .04)., Conclusions: Aside from clinically important differences in main income source, leaving the parental home, and reduced risk-taking behavior, survivors born EP/ELBW in the era since surfactant was introduced are transitioning into adulthood similarly to term-born controls in some areas assessed but not all., (Copyright © 2024 by the American Academy of Pediatrics.)
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- 2024
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33. WHAM-A Prospective Study of Weight and Body Composition After Risk-Reducing Bilateral Salpingo-oophorectomy.
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Price SAL, Finch S, Krejany E, Jiang H, Kale A, Domchek S, Wrede D, Wark JD, and Hickey M
- Subjects
- Female, Humans, Prospective Studies, Menopause, Hormone Replacement Therapy, Body Weight, Ovariectomy, Salpingo-oophorectomy, Ovarian Neoplasms
- Abstract
Context: Body weight and composition may change over the natural menopause transition. Whether surgical menopause has similar effects, and the impact of hormone replacement therapy (HRT), are unknown. Understanding the metabolic effects of surgical menopause will inform clinical care., Objective: To prospectively measure weight and body composition over 24 months following surgical menopause compared with a similar comparison group who retained their ovaries., Methods: Prospective observational study of weight change from baseline to 24 months in 95 premenopausal women at elevated risk of ovarian cancer planning risk-reducing salpingo-oophorectomy (RRSO) and 99 comparators who retained their ovaries. Change in body composition from baseline to 24 months was also assessed by dual-energy x-ray absorptiometry in a subgroup of 54 women who underwent RRSO and 81 comparators who retained their ovaries. In the subgroup, weight, fat mass, lean mass, and abdominal fat measures were compared between groups., Results: At 24 months both groups had gained weight (RRSO 2760 ± 4860 g vs comparators 1620 ± 4540 g) with no difference between groups (mean difference 730 g; 95% CI 920 g to 2380 g; P = .383). In the body composition subgroup, there was no difference in weight between groups at 24 months (mean difference 944 g; 95% CI -1120 g to 2614 g; P = .431). RRSO women may have gained slightly more abdominal visceral adipose tissue (mean difference 99.0 g; 95% CI 8.8 g to 189.2 g; P = .032) but there were no other differences in body composition. There were also no differences in weight or body composition between HRT users and nonusers at 24 months., Conclusion: 24 months after RRSO, there was no difference in body weight compared with women who retained their ovaries. RRSO women gained more abdominal visceral adipose tissue than comparators, but there were no other differences in body composition. Use of HRT following RRSO had no effect on these outcomes., (© The Author(s) 2023. Published by Oxford University Press on behalf of the Endocrine Society.)
- Published
- 2023
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34. Quantifying Bone Strength Deficits in Young Adults Born Extremely Preterm or Extremely Low Birth Weight.
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Dao T, Robinson DL, Doyle LW, Lee PV, Olsen J, Kale A, Cheong JL, and Wark JD
- Subjects
- Infant, Newborn, Female, Humans, Male, Young Adult, Adult, Birth Weight, Minerals, Victoria, Infant, Extremely Low Birth Weight, Infant, Extremely Premature
- Abstract
The long-term bone health of young adults born extremely preterm (EP; <28 weeks' gestation) or extremely low birth weight (ELBW; <1000 g birth weight) in the post-surfactant era (since the early 1990s) is unclear. This study investigated their bone structure and estimated bone strength using peripheral quantitative computed tomography (pQCT)-based finite element modeling (pQCT-FEM). Results using this technique have been associated with bone fragility in several clinical settings. Participants comprised 161 EP/ELBW survivors (46.0% male) and 122 contemporaneous term-born (44.3% male), normal birth weight controls born in Victoria, Australia, during 1991-1992. At age 25 years, participants underwent pQCT at 4% and 66% of tibia and radius length, which was analyzed using pQCT-FEM. Groups were compared using linear regression and adjusted for height and weight. An interaction term between group and sex was added to assess group differences between sexes. Parameters measured included compressive stiffness (k
comp ), torsional stiffness (ktorsion ), and bending stiffness (kbend ). EP/ELBW survivors were shorter than the controls, but their weights were similar. Several unadjusted tibial pQCT-FEM parameters were lower in the EP/ELBW group. Height- and weight-adjusted ktorsion at 66% tibia remained lower in EP/ELBW (mean difference [95% confidence interval] -180 [-352, -8] Nm/deg). The evidence for group differences in ktorsion and kbend at 66% tibia was stronger among males than females (pinteractions <0.05). There was little evidence for group differences in adjusted radial models. Lower height- and weight-adjusted pQCT-FEM measures in EP/ELBW compared with controls suggest a clinically relevant increase in predicted long-term fracture risk in EP/ELBW survivors, particularly males. Future pQCT-FEM studies should utilize the tibial pQCT images because of the greater variability in the radius possibly related to lower measurement precision. © 2023 The Authors. Journal of Bone and Mineral Research published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research (ASBMR)., (© 2023 The Authors. Journal of Bone and Mineral Research published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research (ASBMR).)- Published
- 2023
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35. Actualisation 2023 des lignes directrices de pratique clinique pour la prise en charge de l’ostéoporose et la prévention des fractures au Canada.
- Author
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Morin SN, Feldman S, Funnell L, Giangregorio L, Kim S, McDonald-Blumer H, Santesso N, Ridout R, Ward W, Ashe MC, Bardai Z, Bartley J, Binkley N, Burrell S, Butt D, Cadarette SM, Cheung AM, Chilibeck P, Dunn S, Falk J, Frame H, Gittings W, Hayes K, Holmes C, Ioannidis G, Jaglal SB, Josse R, Khan AA, McIntyre V, Nash L, Negm A, Papaioannou A, Ponzano M, Rodrigues IB, Thabane L, Thomas CA, Tile L, and Wark JD
- Subjects
- Humans, Canada, Osteoporosis, Fractures, Bone
- Abstract
Competing Interests: Intérêts concurrents : Lora Giangregorio déclare avoir reçu des honoraires d’Amgen Inc. pour une conférence donnée sur l’exercice physique, hors du cadre du présent manuscrit, sans mention de médicaments. La Dre Giangregorio est également membre du conseil consultatif scientifique d’Ostéoporose Canada et coresponsable du Groupe d’intérêt spécial sur la fracture vertébrale du Fragility Fracture Network. Sandra Kim déclare qu’Ostéoporose Canada lui a offert le soutien d’une personne spécialiste de la méthodologie GRADE (Grading of Recommendations, Assessment, Development and Evaluations) à l’Université McMaster au cours de l’étude. De 2017 à 2020, la Dre Kim a aussi été membre bénévole du conseil d’administration d’Ostéoporose Canada. Nancy Santesso déclare avoir reçu une rémunération versée à son établissement (Université McMaster) afin d’apporter son expertise de l’outil GRADE à l’élaboration des lignes directrices et à la préparation de contenus au cours de l’étude. La Dre Santesso a aussi reçu du soutien d’Ostéoporose Canada pour se rendre aux réunions sur les lignes directrices. Heather McDonald-Blumer déclare avoir reçu des honoraires de consultation d’Eli Lilly et de Novartis pour sa présence à des conseils consultatifs, sans lien avec les présents travaux. Rowena Ridout est membre du conseil d’administration d’Ostéoporose Canada depuis 2020 (aucune rémunération perçue). Neil Binkley déclare avoir reçu une subvention de recherche (versée à son établissement) de Radius, ainsi que des frais de consultation et des honoraires d’Amgen. Angela Cheung a reçu des honoraires d’Amgen et des Laboratoires Paladin à titre de consultante. La Dre Cheung a aussi été membre du comité des lignes directrices cliniques de l’Endocrine Society, coprésidente du programme de santé postménopause de l’American College of Obstetrics and Gynecology et vice-présidente et coresponsable de la Conférence de prise de position 2023 de la Société internationale de densitométrie clinique. Robert Josse déclare avoir reçu des frais de consultation d’Amgen Canada, des Laboratoires Paladin et d’Alexion, ainsi que des honoraires d’Amgen et d’Alexion. Le Dr Josse a aussi participé à des comités consultatifs pour Amgen, Paladin, Alexion et Ultragenyx. Aliya Khan a reçu des subventions de recherche d’Alexion, d’Amgen Canada, de Takeda, d’Ascendis, de Chugai, de Radius, d’Amolyt et d’Ultragenyx, ainsi que des honoraires de conférencière d’Amgen, d’Alexion, d’Ascendis, de Takeda et d’Ultragenyx. La Dre Khan a également participé à des comités consultatifs pour Amgen Canada, Alexion, Amolyt, Ascendis et Takeda. E. Lynn Izumi Nash déclare que le Collège des médecins de famille de l’Ontario lui a versé des honoraires pour la conception d’ateliers de formation médicale continue sur l’ostéoporose. La Dre Nash est aussi membre du conseil consultatif scientifique d’Ostéoporose Canada (à titre bénévole). Zahra Bardai déclare avoir reçu des honoraires en tant que membre du comité de planification scientifique de Pri-Med Canada depuis 2011 et en tant que créatrice du Programme d’apprentissage basé sur la pratique en petit groupe de la Fondation pour l’éducation médicale continue, à l’Université McMaster. La Dre Bardai est aussi membre bénévole du conseil consultatif scientifique d’Ostéoporose Canada. Suzanne Cadarette déclare avoir reçu des subventions de recherche (versées à son établissement) en tant que cochercheuse principale pour des projets financés par les Instituts de recherche en santé du Canada et les National Institutes of Health. Heather Frame a siégé au conseil d’administration d’Ostéoporose Canada jusqu’en novembre 2020. Kaleen Hayes déclare avoir reçu des subventions de recherche à l’initiative des chercheurs du National Institute on Aging, d’Insight Therapeutics, de Genentech et de Sanofi (versées directement à son établissement), et des honoraires de consultation de l’Agence canadienne des médicaments et des technologies de la santé. Alexandra Papaioannou a fait partie d’un comité consultatif et de services de conférenciers et conférencières et a reçu des honoraires d’Amgen Canada. Christine Thomas a été membre du conseil d’administration d’Ostéoporose Canada à différentes périodes.
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- 2023
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36. Clinical practice guideline for management of osteoporosis and fracture prevention in Canada: 2023 update.
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Morin SN, Feldman S, Funnell L, Giangregorio L, Kim S, McDonald-Blumer H, Santesso N, Ridout R, Ward W, Ashe MC, Bardai Z, Bartley J, Binkley N, Burrell S, Butt D, Cadarette SM, Cheung AM, Chilibeck P, Dunn S, Falk J, Frame H, Gittings W, Hayes K, Holmes C, Ioannidis G, Jaglal SB, Josse R, Khan AA, McIntyre V, Nash L, Negm A, Papaioannou A, Ponzano M, Rodrigues IB, Thabane L, Thomas CA, Tile L, and Wark JD
- Subjects
- Aged, Female, Humans, Male, Middle Aged, Canada, Nutritional Status, Quality of Life, Fractures, Bone, Osteoporosis complications, Osteoporosis diagnosis, Osteoporosis drug therapy
- Abstract
Background: In Canada, more than 2 million people live with osteoporosis, a disease that increases the risk for fractures, which result in excess mortality and morbidity, decreased quality of life and loss of autonomy. This guideline update is intended to assist Canadian health care professionals in the delivery of care to optimize skeletal health and prevent fractures in postmenopausal females and in males aged 50 years and older., Methods: This guideline is an update of the 2010 Osteoporosis Canada clinical practice guideline on the diagnosis and management of osteoporosis in Canada. We followed the Grading of Recommendations Assessment, Development and Evaluation (GRADE) framework and quality assurance as per Appraisal of Guidelines for Research and Evaluation (AGREE II) quality and reporting standards. Primary care physicians and patient partners were represented at all levels of the guideline committees and groups, and participated throughout the entire process to ensure relevance to target users. The process for managing competing interests was developed before and continued throughout the guideline development, informed by the Guideline International Network principles. We considered benefits and harms, patient values and preferences, resources, equity, acceptability and feasibility when developing recommendations; the strength of each recommendation was assigned according to the GRADE framework., Recommendations: The 25 recommendations and 10 good practice statements are grouped under the sections of exercise, nutrition, fracture risk assessment and treatment initiation, pharmacologic interventions, duration and sequence of therapy, and monitoring. The management of osteoporosis should be guided by the patient's risk of fracture, based on clinical assessment and using a validated fracture risk assessment tool. Exercise, nutrition and pharmacotherapy are key elements of the management strategy for fracture prevention and should be individualized., Interpretation: The aim of this guideline is to empower health care professionals and patients to have meaningful discussions on the importance of skeletal health and fracture risk throughout older adulthood. Identification and appropriate management of skeletal fragility can reduce fractures, and preserve mobility, autonomy and quality of life., Competing Interests: Competing interests: Lora Giangregorio reports receiving an honorarium from Amgen Inc. for a lecture on exercise with no mention of medications, outside the current manuscript. Dr. Giangregorio is also a member of the Scientific Advisory Council of Osteoporosis Canada and co-lead of the Vertebral Fracture Special Interest Group, Fragility Fracture Network. Sandra Kim reports receiving support from Osteoporosis Canada for a Grading of Recommendations, Assessment, Development and Evaluations (GRADE) methodologist at McMaster University, during the conduct of the study. Dr. Kim was also a volunteer member of the Osteoporosis Canada Board of Directors from 2017 to 2020. Nancy Santesso reports receiving payment to provide GRADE expertise for guideline development and preparation of materials paid to institution (McMaster University), during the conduct of the study. Dr. Santesso has also received support from Osteoporosis Canada for travel to guideline-related meetings. Heather McDonald-Blumer reports receiving consulting fees from Eli Lilly and Novartis, for attendance on advisory boards, outside the submitted work. Rowena Ridout has been a member of the Osteoporosis Canada Board of Directors since 2020 (no payment received). Neil Binkley reports receiving a research grant (paid to institution) from Radius, and consulting fees and honoraria from Amgen. Angela Cheung has received honoraria for consultancy work from Amgen and Paladin Laboratories. Dr. Cheung has also held the following roles: member of the Clinical Guidelines Committee of the Endocrine Society; co-chair of the postmenopausal health pathway, American College of Obstetrics and Gynecology; and vice-president and co-chair of the 2023 Position Development Conference, International Society for Clinical Densitometry. Robert Josse reports receiving consulting fees from Amgen Canada, Paladin Laboratories and Alexion, and honoraria from Amgen and Alexion. Dr. Josse has also participated on advisory boards for Amgen, Paladin, Alexion and Ultragenyx. Aliya Khan has received research grants from Alexion, Amgen Canada, Takeda, Ascendis, Chugai, Radius, Amolyt and Ultragenyx, and speaker honoraria from Amgen, Alexion, Ascendis, Takeda and Ultragenyx. Dr. Khan has also participated on advisory boards for Amgen Canada, Alexion, Amolyt, Ascendis and Takeda. E. Lynn Izumi Nash reports receivin an honorarium from the Ontario College of Family Physicians for designing continuing medical education workshops on osteoporosis. Dr. Nash is also a member of the Scientific Advisory Council for Osteoporosis Canada (voluntary unpaid position). Zahra Bardai reports receiving honoraria as a member of the Pri-Med Canada Scientific Planning Committee (2011–present) and as an author of the Foundation for Medical Practice Education Small Group Practice–Based Learning Program, at McMaster University. Dr. Bardai is also a volunteer member of the Osteoporosis Canada Scientific Advisory Council. Suzanne Cadarette reports receiving research funds (paid to institution) as co–principal investigator on Canadian Institutes of Health Research and National Institutes of Health project grants. Heather Frame is a former member of the Osteoporosis Canada Board of Directors (term ended November 2020). Kaleen Hayes reports receiving researcher-initiated grants from the National Institute on Aging, Insight Therapeutics, Genentech and Sanofi (all paid directly to institution), and consulting fees from the Canadian Agency for Drugs and Technologies in Health. Alexandra Papaioannou has participated on an advisory board and in speakers’ bureaus and received honoraria from Amgen Canada. Christine Thomas has been a member of the Osteoporosis Canada Board of Directors at various time points. Conflict-of-Interest Oversight Committee: Heather McDonald-Blumer (Chair), Larry Funnell, Rowena Ridout., (© 2023 CMA Impact Inc. or its licensors.)
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- 2023
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37. Do zoo animals use off-exhibit areas to avoid noise? A case study exploring the influence of sound on the behavior, physiology, and space use of two pied tamarins (Saguinus bicolor).
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Wark JD, Schook MW, Dennis PM, and Lukas KE
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- Animals, Saguinus physiology, Behavior, Animal, Animals, Zoo physiology, Noise
- Abstract
Noise can be a known stressor but our understanding of its effects on animals living in zoo environments remains limited. Although exposure to loud, chronic noise may be expected to negatively impact welfare, providing access to quiet areas to escape loud noise may buffer these negative effects. In this study, we explored the benefits of access to quiet, off-exhibit areas for animals living in a chronically loud sound environment. Two pied tamarins (Saguinus bicolor) living near a large waterfall feature that emitted loud, chronic noise were experimentally exposed to varying sound levels during 2-week treatment conditions. Baseline conditions (waterfall feature on and access to quiet, off-exhibit areas), were followed by a Quiet sound condition (waterfall off), a Loud sound condition (waterfall on and a speaker in the off-exhibit area playing volume-matched white noise), and a final Baseline condition. During Baseline conditions, sound levels were greater than 10 dBA higher in the exhibit than in the off-exhibit area (i.e., roughly twice as loud). The number of visitor groups present during behavior observations were consistent throughout the study. Both tamarins modified their space use during treatment conditions. Under Baseline conditions, both individuals showed frequent usage of quiet, off-exhibit areas. During the Quiet and Loud conditions, where sound levels were generally consistent across spaces, both individuals used off-exhibit areas less and their use of exhibit and off-exhibit areas was not significantly different than would be expected by chance, given the size of the areas. Additional behavioral changes were minimal. No significant differences in fecal glucocorticoid metabolites were observed. Although the monkeys in this study appeared to avoid noise, the overall impact on welfare appeared to be minimal considering the limited behavioral and hormonal changes observed. This study highlights the potential benefits of off-exhibit spaces as a quiet refuge from noise in the zoo environment., (© 2022 Wiley Periodicals LLC.)
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- 2023
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38. Growth from infancy to adulthood and associations with cardiometabolic health in individuals born extremely preterm.
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Cheong JLY, Olsen JE, Konstan T, Mainzer RM, Hickey LM, Spittle AJ, Wark JD, Cheung MM, Garland SM, Duff J, Clark M, Stevens P, and Doyle LW
- Abstract
Background: Few studies have tracked growth in children born extremely preterm (EP, <28 weeks' gestation) beyond late adolescence. The relationships between growth parameters (including weight and BMI) through childhood and adolescence with later cardiometabolic health, are unclear in those born EP. We aimed to (i) compare growth from 2 to 25 years between EP and controls; and in the EP group (ii) determine the associations of growth parameters with cardiometabolic health., Methods: Prospective state-wide cohort of all EP livebirths in Victoria, Australia, in 1991-1992 and contemporaneous term-born controls. Z-scores for weight (z-weight), height (z-height) and BMI (z-BMI) at 2, 5, 8, 18 and 25 years, and cardiometabolic health at 25 years (body composition, glucose tolerance, lipid profiles, blood pressure, exercise capacity) were measured. Growth trajectories were compared between groups using mixed models. The relationships between z-BMI changes/year, and being overweight at different ages, with cardiometabolic health were explored using linear regression., Findings: Z-weight and z-BMI were lower in EP than controls, but the gap decreased with age due to a more rapid rate of rise in z-weight and a decrease in z-height in the EP group compared with controls. Greater increases in z-BMI/year in the EP group were associated with poorer cardiometabolic health [coefficient (95% CI) per 0.1 z-BMI increase/year: visceral fat volume (cm
3 ) 217.8 (160.9, 274.7), triglycerides (mmol/L) 0.45 (0.20, 0.71), systolic blood pressure (mmHg) 8.9 (5.8, 12.0), and exercise capacity (BEEP test maximum level -1.2 (-1.7, -0.7)), all p < 0.001]. The association between being overweight with poorer cardiometabolic health strengthened with age., Interpretation: The catch-up in weight and BMI by young adulthood in survivors born EP may not be desirable as it is associated with poorer cardiometabolic health. The associations of being overweight from mid-childhood with poorer cardiometabolic health may provide a window for intervention., Funding: National Health and Medical Research Council of Australia., Competing Interests: The authors have no conflicts of interest relevant to this article to disclose., (© 2023 The Author(s).)- Published
- 2023
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39. Do zoo-housed primates retreat from crowds? A simple study of five primate species.
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Cairo-Evans A, Wierzal NK, Wark JD, and Cronin KA
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- Animals, Cercopithecinae psychology, Cercopithecus psychology, Humans, Lemuridae psychology, Pitheciidae psychology, Social Isolation, Time Factors, Animal Welfare, Animals, Zoo psychology, Behavior, Animal, Crowding, Primates classification, Primates psychology, Spatial Analysis
- Abstract
An animal's welfare state is directly influenced by the mental state, which is shaped by experiences within the environment throughout the animal's life. For zoo-housed animals, visitors to the zoo are a large part of that environment and a fluctuating influence within it. This study examines the impact of zoo visitors on the space use of five species of zoo-housed primates (Eastern black-and-white colobus monkeys, Colobus guereza, n = 5, Allen's swamp monkeys, Allenopithecus nigroviridis, n = 2, DeBrazza's monkeys, Cercopithecus neglectus, n = 3, Bolivian gray titi monkeys, Callicebus donacophilus, n = 3, and crowned lemurs, Eulemur coronatus, n = 3). Specifically, we considered whether primates' distance from visitor areas changed as crowd sizes increased. Data were collected using the ZooMonitor app. Observers recorded spatial coordinates for each animal over periods ranging from 12 to 32 months. Data were analyzed using two types of regression models (linear and logistic) to examine the influence of visitors on the location of the primates. Both analyses revealed a statistically significant but small decrease in primate distance from visitor viewing glass as the number of visitors increased. Behavioral indicators of welfare were also unaffected by the presence of visitors. These results suggest that, with additional validation, distance from visitors may be one promising, simple way to evaluate the influence of visitors on primate welfare., (© 2022 The Authors. American Journal of Primatology published by Wiley Periodicals LLC.)
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- 2022
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40. Power Up: Combining Behavior Monitoring Software with Business Intelligence Tools to Enhance Proactive Animal Welfare Reporting.
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Wark JD
- Abstract
Animal welfare is a dynamic process, and its evaluation must be similarly dynamic. The development of ongoing behavior monitoring programs in zoos and aquariums is a valuable tool for identifying meaningful changes in behavior and allows proactive animal management. However, analyzing observational behavior data in an ongoing manner introduces unique challenges compared with traditional hypothesis-driven studies of behavior over fixed time periods. Here, I introduce business intelligence software as a potential solution. Business intelligence software combines the ability to integrate multiple data streams with advanced analytics and robust data visualizations. As an example, I provide an overview of the Microsoft Power BI platform, a leading option in business intelligence software that is freely available. With Power BI, users can apply data cleaning and shaping in a stepwise fashion, then build dashboards using a library of visualizations through a drag-and-drop interface. I share two examples of data dashboards built with Power BI using data from the ZooMonitor behavior recording app: a quarterly behavior summary and an enrichment evaluation summary. I hope this introduction to business intelligence software and Microsoft Power BI empowers researchers and managers working in zoos and aquariums with new tools to enhance their evidence-based decision-making processes.
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- 2022
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41. The effects of Pilates on health-related outcomes in individuals with increased risk of fracture: a systematic review.
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McLaughlin EC, Bartley J, Ashe MC, Butt DA, Chilibeck PD, Wark JD, Thabane L, Stapleton J, and Giangregorio LM
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- Canada, Female, Humans, Male, Middle Aged, Quality of Life
- Abstract
This systematic review examined the effect of Pilates on health-related outcomes in individuals with increased fracture risk to inform the 2021 Clinical Practice Guidelines for Management of Osteoporosis and Fracture Prevention in Canada. Seven electronic databases were searched to December 2020. Studies of Pilates in men and postmenopausal women aged ≥50 years with low bone mineral density (BMD), history of fragility fracture, or moderate-high risk of fragility fracture were included. Two reviewers independently screened studies and performed risk of bias assessment. Of 7286 records and 504 full-text articles, 5 studies were included, encompassing data from 143 participants (99% female). Data were insufficient for meta-analyses. There is low-certainty evidence that Pilates improved physical functioning and health-related quality of life. The effect of Pilates on falls and BMD is uncertain. No evidence was available for the effect of Pilates on mortality, fractures, or adverse events. Overall, Pilates may improve physical functioning and quality of life. Evidence of benefits relative to harms of Pilates in people with increased fracture risk, particularly males, is limited. PROSPERO registration: CRD42019122685. Novelty: Pilates may improve physical functioning and quality of life in women with osteoporosis. Evidence of the effect of Pilates on BMD, falls, fractures, or adverse events is limited.
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- 2022
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42. Exploring the Association between Pain and Fracture Characteristics in Women with Osteoporotic Vertebral Fractures.
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Manji R, Ponzano M, Ashe MC, Wark JD, Kendler D, Papaioannou A, Cheung AM, Adachi JD, Thabane L, Scherer SC, Ziebart C, Gibbs JC, and Giangregorio LM
- Abstract
Purpose: The purpose of this study was to estimate the association between pain and the number, severity, and location of fractures in women with osteoporotic vertebral fractures. Method: We used an 11-point numeric pain rating scale to assess pain during movement in the preceding week and lateral spinal radiographs to confirm number, location, and severity of vertebral fractures. In model 1, we assessed the association between pain during movement and the number, severity, and location of fractures. We adjusted model 2 for pain medication use and age. Results: The mean age of participants was 76.4 (SD 6.9) years. We found no statistically significant associations between pain and fracture number (estimated β = 0.23, 95% CI: -0.27, 0.68), fracture severity (estimated β = -0.46, 95% CI: -1.38, 0.49), or fracture location at T4-T8 (estimated β = 0.06, 95% CI: -1.26, 1.34), T9-L1 (estimated β = 0.35, 95% CI: -1.17, 1.74), or L2-L4 (estimated β = 0.40, 95% CI: -1.01, 1.75). Age and pain medication use were not significantly associated with pain. Model 1 accounted for 4.7% and model 2 for 7.2% of the variance in self-reported pain. Conclusion: The number, location, and severity of fractures do not appear to be the primary explanation for pain in women with vertebral fractures. Clinicians must consider other factors contributing to pain., (© Canadian Physiotherapy Association.)
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- 2022
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43. Effect of yoga on health-related outcomes in people at risk of fractures: a systematic review.
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Kim KV, Bartley J, Ashe MC, Bardai Z, Butt DA, Chilibeck PD, Ponzano M, Rodrigues IB, Stapleton J, Thabane L, Wark JD, and Giangregorio L
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- Aged, Female, Humans, Male, Middle Aged, Quality of Life, Fractures, Compression, Osteoporosis, Spinal Fractures, Yoga
- Abstract
We summarized the effects of yoga on health-related outcomes and adverse events in men and postmenopausal women ≥50 years-old at increased risk of fracture, to inform the updated Osteoporosis Canada clinical practice guidelines. Six databases were searched for observational studies, randomized controlled trials and case series. Certainty of evidence was assessed using the Grading of Recommendations, Assessment, Development and Evaluation handbook. Nine studies were included and reported using narrative syntheses due to the limited available evidence. Overall, the available evidence was of very low certainty. There was no effect of yoga on health-related quality of life in randomized trials. Effects on other health-related outcomes were mixed or not available in the literature. Five studies reported no adverse events directly related to the study intervention, and 2 studies did not report whether adverse events occurred. However, 2 case series reported vertebral fractures related to yoga participation, possibly due to excessive spinal flexion. Due to the limited and very low certainty evidence, guideline developers will need to draw indirect evidence from yoga studies among middle aged or older adults that are not at fracture risk. PROSPERO: CRD42019124898. Novelty: Evidence in general was of very low certainty. Yoga had no effect on health-related quality of life in randomized trials. Evidence was mixed or unavailable for other outcomes. Case studies reported yoga poses involving spinal flexion coincided with incidents of vertebral compression fracture among older adults with increased fracture risk.
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- 2022
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44. Detection of Vitamin D Metabolites in Breast Milk: Perspectives and challenges for measurement by Liquid Chromatography Tandem-Mass Spectrometry.
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Tuddenham C, Greaves RF, Rajapaksa AE, Wark JD, and Zakaria R
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- Female, Humans, Infant, Maternal Nutritional Physiological Phenomena, Prevalence, Recommended Dietary Allowances, Solid Phase Extraction, Vitamin D chemistry, Vitamin D metabolism, Vitamin D Deficiency epidemiology, Chromatography, Liquid methods, Milk, Human chemistry, Tandem Mass Spectrometry methods, Vitamin D analysis
- Abstract
Breast milk is an emerging matrix for vitamin D assessment of breastfed infants and their mothers. It is considered a more reliable indicator of infant intake than the assessment of maternal circulating vitamin D. With the improved sensitivity of mass spectrometry-based technologies, this method principle has been the recent mainstay for the quantitation of various vitamin D metabolites in breast milk for population-based clinical trials. There are still several areas across the total testing process (pre-analytical, analytical and post-analytical) to be defined and harmonised to translate breast milk vitamin D measurement by liquid chromatography-tandem mass spectrometry (LC-MS/MS) from population-based research to routine clinical use and public health applications. Pre-analytically, the determination of the best form of vitamin D to measure in breast milk requires more evidence. Analytically, standardisation of the methods to allow for comparability of results is required. Post analytically, breast milk vitamin D decision limits are needed to turn the individual numerical outputs into clinically meaningful results. This review aims to synthesise the current evidence and utility of measurement of breast milk vitamin D by LC-MS/MS and to lead a future discussion on best practices to allow for its clinical utility beyond its current research-based use., (Copyright © 2021 The Canadian Society of Clinical Chemists. Published by Elsevier Inc. All rights reserved.)
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- 2021
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45. Maternal vitamin D and offspring fracture risk: the Vitamin D in Pregnancy study.
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Percival MA, Pasco JA, Hosking SM, Williams LJ, Holloway-Kew KL, Wark JD, and Hyde NK
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- Child, Female, Humans, Male, Pregnancy, Vitamin D, Vitamins, Fractures, Bone epidemiology, Pregnancy Complications epidemiology, Vitamin D Deficiency epidemiology
- Abstract
Vitamin D is important for bone health and strength. Previous studies report 25-hydroxyvitamin D (25(OH)D) exposure during pregnancy may impact offspring bone health later in life. In this study, maternal 25(OH)D at recruitment was associated with a lower fracture risk in boys and an increased fracture risk in girls at 28-32 weeks gestation., Purpose: Maternal 25-hydroxyvitamin D (25(OH)D) in pregnancy has been shown to be associated with offspring bone measures in some studies, but few have examined fracture risk. We aimed to determine associations between maternal vitamin D status and offspring fracture risk., Methods: In total, 475 mother-child pairs participating in the Vitamin D in Pregnancy study in southeastern Australia were recruited. Maternal serum samples were taken at recruitment (< 16 weeks gestation) and/or 28-32 weeks gestation and analysed for 25(OH)D. Incident fractures in children were ascertained from date of birth (2002-2004) until December 31, 2012. Cox proportional hazard models included maternal age at recruitment, offspring sex, birth weight, gestation length and season of vitamin D sample., Results: Complete follow-up data were available for 400 children (median age = 9.5 years). There were 68 (17.0%) children who sustained at least one fracture. Higher maternal 25(OH)D (per 10 nmol/L) in early gestation was weakly associated with a decreased fracture risk in boys (HR 0.82; 95% CI 0.68, 0.99; p = 0.048) but not girls (HR 1.10; 95% CI 0.98, 1.25; p = 0.11). At late gestation, higher maternal 25(OH)D was associated with increased fracture risk in girls (HR 1.11; 95% CI 1.01, 1.23; p = 0.038) but not boys (HR 0.94; 95% CI 0.80, 1.10; p = 0.42). No statistically significant relationships were detected in analyses investigating 25(OH)D as a categorical variable., Conclusion: There is some evidence that higher maternal 25(OH)D at recruitment was associated with lower fracture risk in boys, while higher maternal 25(OH)D at 28-32 weeks gestation was associated with an increased fracture risk in girls., (© 2021. International Osteoporosis Foundation and National Osteoporosis Foundation.)
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- 2021
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46. The Effects of Walking or Nordic Walking in Adults 50 Years and Older at Elevated Risk of Fractures: A Systematic Review and Meta-Analysis.
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Rodrigues IB, Ponzano M, Butt DA, Bartley J, Bardai Z, Ashe MC, Chilibeck PD, Thabane L, Wark JD, Stapleton J, and Giangregorio LM
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- Aged, Exercise Therapy, Humans, Nordic Walking, Walking, Fractures, Bone, Quality of Life
- Abstract
Walking is a common activity among older adults. However, the effects of walking on health-related outcomes in people with low bone mineral density (BMD) are unknown. The authors included randomized controlled trials comparing walking to control in individuals aged ≥50 years with low BMD and at risk of fractures. The authors identified 13 randomized controlled trials: nine multicomponent interventions including walking, one that was walking only, and three Nordic walking trials. Most studies had a high risk of bias. Nordic walking may improve the Timed Up-and-Go values (1.39 s, 95% CI [1.00, 1.78], very low certainty). Multicomponent interventions including walking improved the 6-min walk test (39.37 m, 95% CI [21.83, 56.91], very low certainty) and lumbar spine BMD (0.01 g/cm2, 95% CI [0.00, 0.03], low certainty evidence). The effects on quality of life or femoral neck BMD were not significant. There were insufficient data on fractures, falls, or mortality. Nordic walking may improve physical functioning. The effects on other outcomes are less certain; one may need to combine walking with other exercises to be of benefit.
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- 2021
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47. Risk of Fractures and Other Injuries in Children Treated with Antiseizure Medications for Epilepsy.
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Kumar SM, Simm PJ, De Silva L M, Gorelik A, Freeman JL, Mackay MT, Ahmad BS, Petty SJ, and Wark JD
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- Anticonvulsants adverse effects, Child, Cross-Sectional Studies, Humans, Prospective Studies, Seizures drug therapy, Seizures epidemiology, Epilepsy complications, Epilepsy drug therapy, Epilepsy epidemiology, Fractures, Bone drug therapy, Fractures, Bone epidemiology
- Abstract
This study aimed to investigate the prevalence of fractures and non-fracture injuries, including associated risk factors, in children with epilepsy prescribed antiseizure medications (ASM). A controlled, cross-sectional study was conducted in a hospital outpatient setting, comparing children with epilepsy prescribed ASMs with their non-epileptic siblings. Information was collected by questionnaire included history of fractures, non-fracture injuries and epilepsy, comorbidities and ASM use. 261 participants completed the questionnaire, 133 children with epilepsy (aged 10.7 ± 3.5 years, mean ± SD) and 128 siblings (10.1 ± 3.7 years). There were 49 non-seizure-related fractures in 34 ASM patients while prescribed ASMs, compared with 21 lifetime fractures in 15 controls, giving a 2.7 (95% CI 1.3-5.3, p = 0.007) times greater fracture prevalence in children treated with ASMs compared to healthy siblings. The rates of non-fracture injuries were similar across groups, except that concussion was more common in children taking ASMs (9.0% vs 1.6%, p = 0.026). Duration of ASM use and generalized tonic-clonic seizures (GTCS) were independent predictors of fractures (OR 1.55; 95% CI 1.03-2.31, p = 0.03; OR 2.50; 95% CI 1.05-5.94, p = 0.04, respectively). Fewer than 20% of participants and/or their families were aware that ASM use was related to bone health. Children with epilepsy treated with ASMs had a higher fracture prevalence than their sibling controls. Duration of ASM treatment and GTCS were associated with fracture risk. Longitudinal prospective studies are required to further explore risk and the direct impact of epilepsy on bone health., (© 2021. Crown.)
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- 2021
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48. The association between trunk muscle endurance, balance and falls self-efficacy in women with osteoporotic vertebral fractures: an exploratory analysis from a pilot randomized controlled trial.
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McArthur C, Gibbs JC, Ashe MC, Cheung AM, Hill KD, Kendler DL, Khan A, Prasad S, Thabane L, Wark JD, and Giangregorio LM
- Subjects
- Accidental Falls, Activities of Daily Living, Aged, Female, Humans, Muscle Strength, Muscle, Skeletal, Ontario, Pilot Projects, Postural Balance, Self Efficacy, Osteoporotic Fractures, Spinal Fractures
- Abstract
Background: Trunk muscle endurance may be associated with balance and falls self-efficacy for people with osteoporosis. However, all previous studies have examined trunk muscle strength rather than endurance., Purpose: To explore the relationships between trunk muscle endurance and standing balance and falls self-efficacy for women with vertebral fractures., Materials and Methods: This is an exploratory, secondary analysis of baseline data of a pilot randomized controlled trial in Ontario, Canada. Thirty-one women with osteoporosis, aged 65 years or older, with at least one vertebral fracture were included. The associations between balance (Balance Outcome Measure for Elder Rehabilitation) and trunk muscle endurance (Timed Loaded Standing Test) and falls self-efficacy (Falls Efficacy Scale International) and trunk muscle endurance were tested via Spearman rank order correlation with Fisher's z transformations., Results: Trunk muscle endurance was correlated with better balance performance on the Balance Outcome Measure for Elder Rehabilitation [Spearman correlation coefficient, 0.71; 95% confidence interval: 0.47-0.85; p < 0.001], but not with falls self efficacy (Spearman correlation coefficient; -0.22; 95% confidence interval: -0.53 to 0.14; p = 0.23)., Conclusions: Trunk muscle endurance was moderately associated with better standing balance performance but not falls self-efficacy, highlighting the importance of trunk muscle endurance for standing balance for older adults with osteoporosis and vertebral fractures.Implications for RehabilitationOlder adults with osteoporosis and vertebral fractures who have better trunk muscle endurance may also have better standing balance.There was no association between trunk muscle endurance and how confident a person is that they will not fall while completing various activities of daily living.Trunk muscle endurance training could be included as part of a standing balance rehabilitation program for this population.
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- 2021
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49. What Happens After Menopause? (WHAM): A prospective controlled study of cardiovascular and metabolic risk 12 months after premenopausal risk-reducing bilateral salpingo-oophorectomy.
- Author
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Hickey M, Moss KM, Mishra GD, Krejany EO, Domchek SM, Wark JD, Trainer A, and Wild RA
- Subjects
- Adult, Australia epidemiology, Body Mass Index, Cardiovascular Diseases blood, Cardiovascular Diseases etiology, Case-Control Studies, Female, Hormone Replacement Therapy, Humans, Obesity epidemiology, Obesity etiology, Ovarian Neoplasms prevention & control, Overweight epidemiology, Overweight etiology, Prospective Studies, Risk, Salpingo-oophorectomy adverse effects, United States epidemiology, Waist Circumference, Cardiovascular Diseases epidemiology, Menopause physiology, Salpingo-oophorectomy statistics & numerical data
- Abstract
Objective: To prospectively measure cardiometabolic risk 12 months after premenopausal risk-reducing bilateral salpingo-oophorectomy (RRBSO) compared to a similar age comparison group, and the effects of Hormone Therapy (HT) on cardiometabolic risk., Methods: Prospective observational study of 95 premenopausal women planning RRBSO and 99 comparisons who retained their ovaries. At baseline and 12 months, blood pressure (BP), Body Mass Index (BMI), waist and hip circumference, fasting total, HDL and LDL cholesterol, triglycerides, high-sensitivity C-reactive protein, glucose and insulin were measured and HOMA-IR was calculated. Chi-square tests, t-tests and adjusted logistic regression models were used to compare groups., Results: Baseline cardiometabolic phenotypes were similar between groups but more RRBSO participants were overweight/obese with higher waist/hip ratios. By 12 months, BP and cardiometabolic phenotypes were largely unchanged. Paired t-tests showed statistically significant increases in BMI (p = 0.037) and weight (p = 0.042) and larger increases in waist circumference (p < 0.001) and waist-hip ratio (p = 0.009) after RRBSO vs comparisons. However, these were not significant when adjusted for baseline values. After RRBSO 60% initiated Hormone Therapy (HT). Paired t-tests demonstrated that non-HT users had a significantly greater mean increase in waist circumference of 4.3 cm (95% CI 2.0-6.5) compared to 1.3 cm in HT users (95% CI -0.2-2.7, p < 0.001), which remained significant when adjusted for baseline values (p = 0.02). At 12 months, mean waist circumference was 2.94 cm greater in non-HT users compared to HT users., Conclusions: Cardiometabolic risk markers are largely unchanged 12 months after RRBSO. Hormone Therapy after RRBSO may prevent against an increase in waist circumference., Competing Interests: Declaration of Competing Interest MH is an editor for the Cochrane Collaboration Group and has received pharmaceutical funding from QUE Oncology P/L, Madorra P/L and Ovoca Bio (Australia) P/L for clinical trials outside of the submitted work. SMD has received personal fees from AstraZeneca outside of the submitted work. KMM, GDM, EOK, AT and RAW have no conflicts of interest to declare., (Copyright © 2021. Published by Elsevier Inc.)
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- 2021
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50. Wildfire smoke exposure and respiratory health outcomes in young adults born extremely preterm or extremely low birthweight.
- Author
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Haikerwal A, Doyle LW, Wark JD, Irving L, and Cheong JL
- Subjects
- Adult, Australia, Birth Weight, Child, Female, Humans, Infant, Extremely Premature, Infant, Newborn, Outcome Assessment, Health Care, Smoke adverse effects, Young Adult, Wildfires
- Abstract
Objective: Adults born either extremely preterm (EP, <28 weeks gestation) or extremely low birthweight (ELBW, <1000 g birthweight) have more obstructive airflow than controls of normal birthweight (>2499 g). We compared self-reported adverse respiratory health outcomes in young adults born EP/ELBW with controls following smoke exposure from the 2019/2020 wildfires in the Australian state of Victoria, and explored if any effects were mediated by airway obstruction, reflected in the forced expiratory volume in 1 second (FEV
1 )., Methods: EP/ELBW participants were derived from all survivors born in the state of Victoria in 1991-92. Contemporaneous controls of normal birthweight (>2499 g) were recruited in the newborn period and matched for sociodemographic variables. Both groups had been assessed at intervals through childhood and into adulthood. Those who participated in the most recent follow-up assessment at 25 years of age, when FEV1 had been measured, were sent a survey when they were approximately 28 years of age asking about respiratory health related outcomes (respiratory symptoms, health services usage, medication uptake) following wildfire smoke exposure over the southern hemisphere summer of 2019-20., Results: A total of 296 participants (166 EP/ELBW; 130 controls) were sent the survey; 44% of the EP/ELBW group and 47% of the control group responded. Compared with controls, EP/ELBW respondents reported more overall respiratory problems (30%vs 20%) and specific respiratory symptoms (breathlessness, wheezing, cough and chest tightness) following wildfire smoke exposure, as well as higher health services usage (e.g. local health clinic, hospital emergency department) and medication uptake for respiratory-related problems. Higher FEV1 values were associated with lower odds of most self-reported respiratory symptoms; adjusting for FEV1 attenuated the differences between EP/ELW and control groups., Conclusion: Survivors born EP/ELBW may be at an increased risk of adverse respiratory health outcomes following wildfire smoke exposure in early adulthood, in part related to worse expiratory airflows., (Copyright © 2021 Elsevier Inc. All rights reserved.)- Published
- 2021
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