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Noventa A, Herpe G, Vesselle G, Guibal A, Velasco S, Chan P, Ingrand P, Boucebci S, Tasu JP. Erratum to “Chart for renal tumor microwave ablation from human study” [Diagn. Interv. Imaging 99 (2018) 609–14]. Diagn Interv Imaging 2020; 101:327. [DOI: 10.1016/j.diii.2019.12.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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McCullen M, Grosskopf C, Jafary S, Chan P, Chen V. P270 Using a rabbit model to observe corticospinal contributions of noninvasive electrical stimulation. Clin Neurophysiol 2020. [DOI: 10.1016/j.clinph.2019.12.380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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53
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Sun H, Sun F, Zhang XQ, Fang XH, Chan P. The Prevalence and Clinical Characteristics of Essential Tremor in Elderly Chineses: A Population-Based Study. J Nutr Health Aging 2020; 24:1061-1065. [PMID: 33244561 DOI: 10.1007/s12603-020-1472-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
OBJECTIVES To investigate the prevalence and the clinical feature of essential tremor (ET) in a community cohort in Beijing. METHODS Using a door-to-door, two-phase approach, we investigated 2,835 residents aged ≥55 years old from rural, urban, and mountain areas. RESULTS The prevalence rate of ET was 4.29%, 2.85%, and 2.29% in rural, urban, and mountain areas, respectively. The overall age- and sex-adjusted prevalence was 3.29%. Among those aged ≥75 years, the prevalence rate in the urban area was higher than those in the rural and mountain areas. The prevalence rate increased with age, and the prevalence was higher among men (6.0%) than among women (3.6%). There was a correlation of ET prevalence with age, sex, and habitation area, but not with alcohol, tea drinking, and occupation. Women (25%) with ET were more likely to have head tremor than men (16.9%). CONCLUSIONS The ET prevalence in the elderly of Beijing was 3.29% which is higher in the urban area and in men.
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Affiliation(s)
- H Sun
- Piu Chan, MD PhD, Department of Neurology, Neurobiology and Geriatrics, Xuanwu Hospital of Capital Medical University, No. 45 Changchun Street, Beijing, 100053, China, Tel: +86-10-83198677, Fax: +86-10-83161294,
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Chhetri JK, Chan P, Arai H, Chul Park S, Sriyani Gunaratne P, Setiati S, Assantachai P. Prevention of COVID-19 in Older Adults: A Brief Guidance from the International Association for Gerontology and Geriatrics (IAGG) Asia/Oceania region. J Nutr Health Aging 2020; 24:471-472. [PMID: 32346683 PMCID: PMC7156899 DOI: 10.1007/s12603-020-1359-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 04/08/2020] [Indexed: 12/28/2022]
Affiliation(s)
- J K Chhetri
- Dr. Jagadish K Chhetri M.D, Xuanwu Hospital of Capital Medical University, No. 45 Changchun Street, Xicheng District, Beijing 100053, China, E-mail:, Tel: +86-10-83198677
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Abstract
OBJECTIVES Multimorbidity is common in older hospitalized adults. To date, however, few studies have addressed multimorbidity in the older population of Chinese inpatients. We aimed to investigate the multimorbidity rate and associated risk factors in older adult inpatients in China. DESIGN, SETTING, PARTICIPANTS This study was conducted in the medical wards of a tertiary-care hospital from. The patients were recruited aged between 60 to 101 (74.14±8.46) years. MEASUREMENTS Data were obtained from the China Comprehensive Geriatric Assessment Study, conducted in 2011-2012 in China. A total of 4,633 inpatients older than 60 years was recruited from 12 hospitals in 7 cities throughout China. The prevalence of comorbidity, distribution of common chronic diseases, and the associated risk factors were studied. RESULTS A total of 4,348 people aged 60 to 101 (74.14±8.46) years completed questionnaires. The average frequency of multimorbidity was 69.3% (95% CI, 67.9% to 70.6%). The prevalence of multimorbidity increased with age and was higher in men (71.6%; 95% CI, 69.9% to 73.3%) than in women (65.3%, 95% CI 63.0% to 67.6%), and higher in the northern region (71.7%, 95% CI 69.9% to 73.5%) than in the southern region (66.0%; 95% CI, 63.8% to 68.1%). The most frequent chronic diseases were hypertension, coronary heart disease, diabetes, cataract, and stroke. Area (OR=0.556; 95% CI, 0.465 to 0.666), region (OR=0.834; 95% CI, 0.723 to 0.962), body mass index (BMI) (OR=1.124; 95% CI, 1.017 to 1.242), and impairment of activities of daily living (OR=0.911; 95% CI, 0.855 to 0.970) were independent factors associated with multimorbidity. CONCLUSIONS Multimorbidity is common in older Chinese inpatients with a national prevalence of 69.3% that increases in line with age. Age, region, area, BMI, and daily activities were independent factors significantly associated with multimorbidity in older inpatients. Clinicians should therefore focus more attention on multimorbidity.
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Affiliation(s)
- L Zhang
- Piu Chan, MD, Department of Neurobiology, Xuanwu Hospital of Capital MedicalUniversity, Beijing 100053, China. . Zhe Tang, MD, Beijing Geriatric Healthcare Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
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Brochu F, Robins S, Miner SA, Grunberg PH, Chan P, Lo K, Holzer HEG, Mahutte N, Ouhilal S, Tulandi T, Zelkowitz P. Searching the Internet for Infertility Information: A Survey of Patient Needs and Preferences. J Med Internet Res 2019; 21:e15132. [PMID: 31829963 PMCID: PMC6933516 DOI: 10.2196/15132] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 08/13/2019] [Accepted: 09/24/2019] [Indexed: 01/30/2023] Open
Abstract
Background Given the complexity of infertility diagnoses and treatments and the convenience of the internet for finding health-related information, people undergoing infertility treatments often use Web-based resources to obtain infertility information and support. However, little is known about the types of information and support resources infertility patients search for on the internet and whether these resources meet their needs. Objective The aims of this study were to (1) examine what individual factors, namely, demographic characteristics and distress, are associated with searching the internet for different types of infertility-related information and support resources and (2) determine whether Web-based resources meet the needs of patients. Methods Men and women seeking infertility care responded to a survey assessing use of Web-based resources for accessing infertility-related information and support. The survey further assessed satisfaction with Web-based resources as well as perceived stress and depressive symptomatology. Results A total of 567 participants, including 254 men and 313 women, completed the survey. Most participants (490/558, 87.8%) had searched the internet for infertility information and support. Searchers were more likely to be women (P<.001), highly educated (P=.04), long-term patients (P=.03), and more distressed (P=.04). Causes of infertility, treatment options, and scientific literature about infertility were the three most frequently searched topics, whereas ways to discuss treatment with family and friends as well as surrogacy and ways to find peer support were the three least searched topics. Of those who searched the internet, 70.9% (346/488) indicated that their needs were met by Web-based information, whereas 29.1% (142/488) said that their needs were not met. Having unmet needs was related to greater levels of perceived stress (P=.005) and depressive symptomatology (P=.03). Conclusions This study provides evidence for the important role of the internet in accessing infertility information and support and for the ability of Web-based resources to meet patients’ needs. However, although distressed patients reported particularly high rates of searching, their needs were not always met, suggesting that they may benefit from alternative sources of information and support or guidance from health care providers when searching the internet.
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Affiliation(s)
- Felicia Brochu
- Department of Psychiatry, McGill University, Montreal, QC, Canada
| | - Stephanie Robins
- Department of Psychiatry, Jewish General Hospital, Montreal, QC, Canada.,Lady Davis Institute, Jewish General Hospital, Montreal, QC, Canada
| | - Skye A Miner
- Lady Davis Institute, Jewish General Hospital, Montreal, QC, Canada.,Department of Sociology, McGill University, Montreal, QC, Canada
| | - Paul H Grunberg
- Department of Psychology, McGill University, Montreal, QC, Canada
| | - Peter Chan
- McGill University Health Center, Montreal, QC, Canada
| | - Kirk Lo
- Mount Sinai Hospital, Toronto, ON, Canada
| | - Hananel E G Holzer
- McGill University Health Center, Montreal, QC, Canada.,Hadassah University Hospitals, Jerusalem, Israel.,Hebrew University, Jerusalem, Israel
| | | | | | - Togas Tulandi
- Lady Davis Institute, Jewish General Hospital, Montreal, QC, Canada.,McGill University Health Center, Montreal, QC, Canada
| | - Phyllis Zelkowitz
- Department of Psychiatry, McGill University, Montreal, QC, Canada.,Department of Psychiatry, Jewish General Hospital, Montreal, QC, Canada.,Lady Davis Institute, Jewish General Hospital, Montreal, QC, Canada
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Chan P, Wong G, Dinh Nguyen T, Nguyen T, McNeil J, Hopper I. Estimation of respiratory rate using infrared video in an inpatient population: an observational study. J Clin Monit Comput 2019; 34:1275-1284. [PMID: 31792761 DOI: 10.1007/s10877-019-00437-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 11/28/2019] [Indexed: 12/14/2022]
Abstract
Respiratory rate (RR) is one of the most sensitive markers of a deteriorating patient. Despite this, there is significant inter-observer discrepancy when measured by clinical staff, and modalities used in clinical practice such as ECG bioimpedance are prone to error. This study utilized infrared thermography (IRT) to measure RR in a critically ill population in the Intensive Care Unit. This study was carried out in a Single Hospital Centre. Respiratory rate in 27 extubated ICU patients was counted by two observers and compared to ECG Bioimpedance and IRT-derived RR at distances of 0.4-0.6 m and > 1 m respectively. IRT-derived RR using two separate computer vision algorithms outperformed ECG derived RR at distances of 0.4-0.6 m. Using an Autocorrelation estimator, mean bias was - 0.667 breaths/min. Using a Fast Fourier Transform estimator, mean bias was - 1.000 breaths/min. At distances greater than 1 m no statistically significant signal could be obtained. Over all frequencies, there was a significant relationship between the RR estimated using IRT and via manual counting, with Pearson correlation coefficients between 0.796 and 0.943 (p < 0.001). Correlation between counting and ECG-derived RR demonstrated significance only at > 19 bpm (r = 0.562, p = 0.029). Overall agreement between IRT-derived RR at distances of 0.4-0.6 m and gold standard counting was satisfactory, and outperformed ECG derived bioimpedance. Contactless IRT derived RR may be feasible as a routine monitoring modality in wards and subacute inpatient settings.
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Affiliation(s)
- Peter Chan
- Eastern Health Intensive Care Services, Eastern Health, Melbourne, Australia.
- School of Public Health and Prevention Medicine, Monash University, Melbourne, Australia.
| | - Gabriel Wong
- Eastern Health Intensive Care Services, Eastern Health, Melbourne, Australia
| | - Toan Dinh Nguyen
- Monash eResearch Centre, Monash University, Melbourne, Australia
| | - Tam Nguyen
- St Vincent's Hospital, Melbourne, Australia
| | - John McNeil
- School of Public Health and Prevention Medicine, Monash University, Melbourne, Australia
| | - Ingrid Hopper
- School of Public Health and Prevention Medicine, Monash University, Melbourne, Australia
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Han C, Lu Y, Cheng H, Wang C, Chan P. The impact of long-term exposure to ambient air pollution and second-hand smoke on the onset of Parkinson disease: a review and meta-analysis. Public Health 2019; 179:100-110. [PMID: 31770719 DOI: 10.1016/j.puhe.2019.09.020] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Revised: 09/04/2019] [Accepted: 09/30/2019] [Indexed: 12/21/2022]
Abstract
OBJECTIVES Long-term exposure to particulate and gaseous air pollution (AP) may trigger the development of Parkinson disease (PD), but this association remains controversial. The relationship between second-hand smoke (SS) and PD risk is also inconclusive. We aimed to systematically review epidemiological studies investigating the association between these AP exposures and PD risk. STUDY DESIGN This was a systematic review and meta-analysis of studies investigating the relationship of ambient AP and SS with PD risk. METHODS PubMed, Embase, Web of Science, Cochrane Library, and Google Scholar databases were searched. We used a random-effects model to derive pooled estimates of relative risk (RR) and corresponding 95% confidence intervals (CIs) per increment in pollutant concentration. The studied AP included particulate matter with aerodynamic diameter <2.5 μm (PM2.5), <10 μm (PM10), nitrogen dioxides (NO2, NOx), ozone (O3), and carbon monoxide (CO). RESULTS In total, 21 studies with 222,051 patients with PD were eligible for inclusion. We found marginally significant increased risk of PD with per 10-μg/m3 increase in concentration of PM2.5 (RR = 1.08, 95% CI = 0.98-1.19), NO2 (RR = 1.03, 95% CI = 0.99-1.07), and O3 (RR = 1.01, 95% CI = 1.00-1.02). A positive but non-significant association was also detected for CO (RR = 1.32, 95% CI = 0.82-2.11). Furthermore, an inverse PD-SS relationship was noted irrespective of exposure occasions and timing (at home: RR = 0.73, 95% CI = 0.56-0.95; at work: RR = 0.82, 95% CI = 0.57-1.17; in children: RR = 0.91, 95% CI = 0.76-1.08). Both sensitivity and subgroup analyses generated results comparable with those of the overall analyses. CONCLUSIONS Our study suggested that exposure to PM2.5, NO2, and O3 might contribute to higher risk of PD, whereas SS conferring reduced PD risk. Public and environmental health strategies that aim at reducing outdoor AP levels might reduce the burden of PD. More prospective cohort studies with personal exposure measurements are warranted in the future.
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Affiliation(s)
- C Han
- National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital of Capital Medical University, 45 Changchun Road, Xicheng District, Beijing, China
| | - Y Lu
- Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases, NHC Key Laboratory of Human Disease Comparative Medicine, Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences and Comparative Medical Center, Peking Union Medical College, 5 Pan Jia Yuan Nan Li, Chaoyang District, Beijing, China
| | - H Cheng
- Obstetrics and Gynecology Department, Huangpi District Hospital of Traditional Chinese Medicine, 48 Banqiao Road, Huangpi District, Wuhan, Hubei, China
| | - C Wang
- National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital of Capital Medical University, 45 Changchun Road, Xicheng District, Beijing, China; Department of Neurobiology, Neurology and Geriatrics, Xuanwu Hospital of Capital Medical University, Beijing Institute of Geriatrics, Clinical Center for Parkinson's Disease, Capital Medical University, Beijing, China; Key Laboratories for Neurodegenerative Diseases of the Ministry of Education, Beijing Key Laboratory for Parkinson's Disease, Parkinson Disease Center of Beijing Institute for Brain Disorders, 45 Changchun Road, Xicheng District, Beijing, China
| | - P Chan
- National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital of Capital Medical University, 45 Changchun Road, Xicheng District, Beijing, China; Department of Neurobiology, Neurology and Geriatrics, Xuanwu Hospital of Capital Medical University, Beijing Institute of Geriatrics, Clinical Center for Parkinson's Disease, Capital Medical University, Beijing, China; Key Laboratories for Neurodegenerative Diseases of the Ministry of Education, Beijing Key Laboratory for Parkinson's Disease, Parkinson Disease Center of Beijing Institute for Brain Disorders, 45 Changchun Road, Xicheng District, Beijing, China.
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Pekker I, Lim L, Simon J, Gormley M, Li Z, Pollak J, Potts K, Watford S, Posey J, Chan P, Urtishak K, Garg K, Hosseini A, Li M. Analytical performance of the resolution-HRD plasma assay used to identify mCRPC patients with biallelic disruption of DNA repair genes for treatment with niraparib. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz257.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Miller J, Bruen C, Wilburn J, Mackey C, Prekker M, Chan P, Peacock W, Stauderman K, Dunn M, Hebbar S. 353 An Open-Label, Dose-Response Study of CM4620-Injectable Emulsion in Emergency Department Patients With Acute Pancreatitis. Ann Emerg Med 2019. [DOI: 10.1016/j.annemergmed.2019.08.314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Lai L, Lee PE, Chan P, Fok MC, Hsiung GYR, Sepehry AA. Prevalence of delusions in drug-naïve Alzheimer disease patients: A meta-analysis. Int J Geriatr Psychiatry 2019; 34:1287-1293. [PMID: 29023987 DOI: 10.1002/gps.4812] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 08/23/2017] [Indexed: 11/12/2022]
Abstract
INTRODUCTION Neuropsychiatric symptoms (NPS) are common at all stages of Alzheimer disease (AD). Delusions in AD are associated with negative clinical consequences and may signal rapid disease progression. Hence, we sought to determine the prevalence of delusions in drug-naïve (no cholinesterase inhibitor or neuroleptic medications) AD patients. METHODS In this meta-analysis, a search of the EMBASE, MEDLINE, and PsycINFO databases was performed. We selected studies reporting delusion prevalence measured by the Neuropsychiatric Inventory (NPI) in drug-naïve AD patients. An aggregate delusion event rate with 95% confidence interval (CI) was calculated. The I2 statistic was used to assess the magnitude of between-study heterogeneity. Single variable meta-regressions allowed examination of the effect of moderating factors and heterogeneity. Quantitative measures were used to appraise for publication bias. RESULTS We identified 6 studies with 591 participants allowing calculation of the aggregate delusional prevalence rate. Irrespective of dementia severity, the aggregate event rate for delusions was 29.1% (95% CI: 20-41%; I2 = 84.59). No publication bias was observed. CONCLUSION This meta-analysis calculates a 29.1% prevalence rate of delusions in AD patients. There is a trend towards increasing delusion prevalence in concordance with increasing severity of dementia. Given delusions are associated with poorer outcomes, the obtained prevalence should motivate clinicians to screen carefully for delusions. Current literature limitations warrant future studies, with sub-analyses on dementia severity, and other neurobiological factors known to influence the presence of delusions.
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Affiliation(s)
- Leo Lai
- University of British Columbia, Department of Medicine, Division of Geriatric Medicine, Vancouver, Canada
| | - Philip E Lee
- University of British Columbia, Department of Medicine, Division of Geriatric Medicine, Vancouver, Canada
| | - Peter Chan
- University of British Columbia, Department of Psychiatry, Division of Geriatric Psychiatry, Vancouver, Canada
| | - Mark C Fok
- University of British Columbia, Department of Medicine, Division of Geriatric Medicine, Vancouver, Canada
| | - Ging-Yuek R Hsiung
- University of British Columbia, Department of Medicine, Division of Neurology, Vancouver, Canada
| | - Amir A Sepehry
- University of British Columbia, Department of Medicine, Division of Neurology, Vancouver, Canada
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Abstract
Background Microscopic hematuria is a common incidental finding on routine urinalysis. Although there are no clear recommendations to perform routine urinalysis, some studies have shown that up to 50% of general practitioners continue to perform annual routine urinalysis regardless of age or risk factors. The aim of this study was to identify associated factors and prevalence of dipstick microscopic hematuria in the general male population presenting to an annual public men’s health fair. Method We conducted a retrospective analysis of prospectively collected data at an annual Men’s Health fair from 2008 to 2013. Patient reported health questionnaires, basic physical exam including digital rectal exam, basic bloodwork and dipstick urinalysis data was examined. Results A total of 979 patients were reviewed. Of these, 850 provided a urine sample and were included in the final analysis. Seventy-three (8.6%) patients had positive hematuria on urinalysis. Average age in both groups was 55 years. Presence of microscopic hematuria was correlated with presence of diabetes and proteinuria with odds-ratio of 2.8 (1.3–5.8) and 2.9 (1.7–5.0) respectively on multivariate analysis. There was no significant correlation identified with age, hypertension, coronary artery disease, body-mass index, smoking, prostate specific antigen (PSA) or International Prostate Symptom Score (IPSS). Limitation of this study is the lack of follow-up and knowledge of subsequent investigations of patients. Conclusion Microscopic hematuria is a prevalent condition in the male population presenting to a health fair. The only factors associated with microscopic hematuria were diabetes and proteinuria. No association was found between hematuria and smoking, age, or lower urinary tract symptoms.
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Affiliation(s)
- Karim Courtemanche
- Division of Urology, McGill University Health Center, 1001 Blvd Decarie, room E02.4366, Montreal, Quebec, H4A 3J1, Canada
| | - Peter Chan
- Division of Urology, McGill University Health Center, 1001 Blvd Decarie, room E02.4366, Montreal, Quebec, H4A 3J1, Canada
| | - Wassim Kassouf
- Division of Urology, McGill University Health Center, 1001 Blvd Decarie, room E02.4366, Montreal, Quebec, H4A 3J1, Canada.
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Abstract
As aging is becoming a global phenomenon, the burden of population aging is increasing rapidly, and is soon expected to be the highest in low-and middle-income countries. China represents the world's largest population, and will face the largest number of older individuals, while the economy still remains developing. There is an urgent need to address the negative consequences of aging such as disability, that creates a myriad of challenges, including financial burden to the economy. In order to achieve successful aging-i.e., aging without being frail or disabled, the traditional healthcare model based on a disease-centered approach is not enough, but require a more holistic course. Here, we briefly outline the current scenario of aging and disability in the Chinese older population, its impact and challenges. We strongly believe that public health initiatives centered on frailty, a clinically distinguishable state of extreme vulnerability in older adults, could be the most relevant approach to meet the current needs of the aging population. Such initiatives are immediately needed to reshape the existing model of geriatric healthcare, to promote healthy aging and to reduce the burden of disability in the Chinese population.
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Affiliation(s)
- J K Chhetri
- Jagadish K Chhetri M.D, Department of Neurobiology and Geriatrics, Xuanwu Hospital of Capital Medical University, Beijing 100053, China
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Abstract
BACKGROUND Although frailty status greatly impacts health care in countries with rapidly aging populations, little is known about the frailty status in Chinese older adults. OBJECTIVES Given the increased health care needs associated with frailty, we sought to develop an easily applied self-report screening tool based on four of the syndromic frailty components and sought to validate it in a population of older adults in China. DESIGN Prospective epidemiological cohort study. SETTING Community-dwelling residents living in Beijing, China. PARTICIPANTS 1724 community-dwelling adults aged ≥60 years in 2004 with an 8-year follow up. MEASUREMENTS We developed a simple self-report frailty screening tool-the Frailty Screening Questionnaire (FSQ)-based on the modified Fried frailty components. The predictive ability for outcome was assessed by age and sex adjusted Cox proportional hazards model. RESULTS According to FSQ criteria, 7.1% of the participants were frail. Frailty was associated with poor physical function, fractures, falls, and mortality. Both frailty and pre-frailty were associated with a higher mortality rate: frailty-hazards ratio (HR), 3.94, 95% confidence interval (CI), 3.16-4.92, P<0.001; pre-frailty-HR, 1.89; 95% CI, 1.57-2.27, P <0.001; adjusted models for this variable did not affect the estimates of the association. Among the four frailty components, slowness was the strongest predictor of mortality. The combination of the four components provided the best risk prediction. CONCLUSIONS FSQ is a self-report frailty measurement tool that can be rapidly performed to identify older adults with higher risk of adverse health outcomes.
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Affiliation(s)
- L Ma
- Dr. Jeremy D. Walston, Division of Geriatric Medicine and Gerontology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21224, USA. E-mail: ; Dr. Zhe Tang, Beijing Geriatric Healthcare Center, Xuanwu Hospital, Capital Medical University, 45 Changchun Street, Xicheng District, Beijing 100053, China. Tel: 86-010-63162077. E-mail:
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Chan P, Parekattil SJ, Goldstein M, Lipshultz LI, Kavoussi P, McCullough A, Sigman M. Pros and cons of robotic microsurgery as an appropriate approach to male reproductive surgery for vasectomy reversal and varicocele repair. Fertil Steril 2019; 110:816-823. [PMID: 30316417 DOI: 10.1016/j.fertnstert.2018.08.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 08/08/2018] [Indexed: 12/19/2022]
Affiliation(s)
- Peter Chan
- Male Reproductive Medicine, Royal Victoria Hospital, Montreal, Quebec, Canada; Department of Urology, McGill University, Montreal, Quebec, Canada
| | - Sijo J Parekattil
- South Lake Hospital, Orlando Health & University of Central Florida, Orlando, Florida
| | - Marc Goldstein
- Department of Reproductive Medicine and Urology, Weill Cornell Medicine, New York Presbyterian Hospital, New York, New York
| | - Larry I Lipshultz
- Division of Male Reproductive Medicine and Surgery, Scott Department of Urology, Baylor College of Medicine, Houston, Texas
| | | | | | - Mark Sigman
- Division of Urology, Alpert Medical School of Brown University, Providence, Rhode Island; Lifespan, Providence, Rhode Island.
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Herrero MB, Lusignan MF, Son WY, Sabbah M, Buckett W, Chan P. ICSI outcomes using testicular spermatozoa in non-azoospermic couples with recurrent ICSI failure and no previous live births. Andrology 2019; 7:281-287. [PMID: 30734539 DOI: 10.1111/andr.12591] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 12/21/2018] [Accepted: 01/09/2019] [Indexed: 12/14/2022]
Abstract
BACKGROUND The use of testicular over ejaculated spermatozoa for ICSI has been presented as an alternative to overcome infertility in men with poor semen parameters or high levels of sperm DNA fragmentation. OBJECTIVE To evaluate the efficacy of testicular ICSI outcomes in couples with no previous live birth and recurrent ICSI failure using ejaculated spermatozoa by comparison to the outcomes of couples with similar history of recurrent ICSI using ejaculated spermatozoa only. MATERIALS AND METHODS A total of 145 couples undergoing ejaculated or testicular ICSI cycles with no previous live births and with at least two previous failed ICSI cycles with ejaculated spermatozoa were evaluated retrospectively. ICSI was performed either with ejaculated (E-ICSI) or with testicular (T-ICSI) spermatozoa. Semen parameters and sperm DNA quality were assessed prior to the oocyte collection day. Primary outcomes included cumulative live birth and pregnancy rates. Secondary analysis included percentage of DNA fragmentation in ejaculated spermatozoa (SCSA® and TUNEL). RESULTS Patients undergoing T-ICSI (n = 77) had a significantly higher clinical pregnancy rate/fresh embryo transfer (ET) (27.9%; 17/61) and cumulative live birth rate (23.4%; 15/64) compared to patients using E-ICSI (n = 68) (clinical pregnancy rate/fresh ET: 10%; 6/60 and cumulative live birth rate: 11.4%; 7/61). Further, T-ICSI yield significantly better cumulative live birth rates than E-ICSI for men with high TUNEL (≥36%) (T-ICSI: 20%; 3/15 vs. E-ICSI: 0%; 0/7, p < 0.025), high SCSA® (≥25%) scores (T-ICSI: 21.7%; 5/23 vs. E-ICSI: 9.1%; 1/11, p < 0.01), or abnormal semen parameters (T-ICSI: 28%; 7/25 vs. E-ICSI: 6.7%; 1/15, p < 0.01). CONCLUSIONS The use of testicular spermatozoa for ICSI in non-azoospermic couples with no previous live births, recurrent ICSI failure, and high sperm DNA fragmentation yields significantly better live birth outcomes than a separate cohort of couples with similar history of ICSI failure entering a new ICSI cycle with ejaculated spermatozoa.
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Affiliation(s)
- M B Herrero
- MUHC Reproductive Centre, McGill University Health Centre, Montreal, QC, Canada
| | - M F Lusignan
- The Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - W-Y Son
- MUHC Reproductive Centre, McGill University Health Centre, Montreal, QC, Canada
| | - M Sabbah
- The Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - W Buckett
- MUHC Reproductive Centre, McGill University Health Centre, Montreal, QC, Canada
| | - P Chan
- MUHC Reproductive Centre, McGill University Health Centre, Montreal, QC, Canada.,The Research Institute of the McGill University Health Centre, Montreal, QC, Canada.,Department of Surgery, McGill University, Montreal, QC, Canada
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Schein J, Chan P, Chen Y, Dunham C, Fuchs H, Letschert V, McNeil M, Melody M, Price S, Stratton H, Williams A. Methodology for the National Water Savings Models- Indoor Residential and Commercial/Institutional Products, and Outdoor Residential Products. Water Sci Technol Water Supply 2019; 19:879-890. [PMID: 33414698 PMCID: PMC7786394 DOI: 10.2166/ws.2018.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Abstract
Since 2006, the U.S. Environmental Protection Agency (EPA) has operated WaterSense® in partnership with manufacturers, utilities, and consumer groups. Similar to EPA's ENERGY STAR® role for energy-efficient products, WaterSense® employs a labeling system to identify water-efficient products, homes, and services. As of 2015, the WaterSense® program can claim credit for a total savings of 1.5 trillion gallons of water and $32.6 billion in consumer water and energy bills. Savings are tracked in the National Water Savings (NWS) model that combines innovative analyses with methodologies established in the energy sector. Merging life-cycle cost and national impact analysis models, the NWS model estimates savings from a bottom-up accounting method for individual products. The model extends those savings to the national level by employing parameters such as frequency of product use by number of people and building type, product lifetime, stock accounting, and market saturation. The NWS model tracks the water and consumer monetary savings of WaterSense-labeled products for residential and commercial water use both indoors and out.
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Affiliation(s)
| | - Peter Chan
- Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Yuting Chen
- Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Camilla Dunham
- Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Heidi Fuchs
- Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | | | - Michael McNeil
- Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Moya Melody
- Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Sarah Price
- Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Hannah Stratton
- Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Alison Williams
- Lawrence Berkeley National Laboratory, Berkeley, California, USA
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Miner SA, Daumler D, Chan P, Gupta A, Lo K, Zelkowitz P. Masculinity, Mental Health, and Desire for Social Support Among Male Cancer and Infertility Patients. Am J Mens Health 2018; 13:1557988318820396. [PMID: 30585112 PMCID: PMC6775564 DOI: 10.1177/1557988318820396] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
By surveying men who are currently infertile ( N = 251) and men who are potentially infertile (i.e., men with cancer; N = 195), the mental health consequences of reproductive masculinity, or the cultural assumption that men are virile and should be fathers, were investigated. There was no difference in depression levels between these two groups when controlling for demographic variables, suggesting that both groups of men have similar mental health needs. Since gendered notions of masculinity also suggest that men do not want to discuss their fertility health, their desire for online fertility-related social support was assessed. These findings suggest that most men do want to talk to others about fertility, which indicates that there is a need for more fertility-related social support. This research challenges some conceptions regarding masculinity, as men revealed an interest in accessing online social support related to fertility.
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Affiliation(s)
- Skye A Miner
- 1 Department of Sociology, McGill University, Montreal, QC, Canada.,2 Lady Davis Institute, Jewish General Hospital, Montreal, QC, Canada
| | - Davis Daumler
- 2 Lady Davis Institute, Jewish General Hospital, Montreal, QC, Canada.,3 Department of Sociology, University of Michigan, Ann Arbor, MI, USA
| | - Peter Chan
- 4 McGill University Health Center, Montreal, QC, Canada
| | - Abha Gupta
- 5 Princess Margaret Cancer Centre, University of Toronto, Toronto, ON, Canada
| | - Kirk Lo
- 6 Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada
| | - Phyllis Zelkowitz
- 2 Lady Davis Institute, Jewish General Hospital, Montreal, QC, Canada.,7 Department of Psychiatry, McGill University, Montreal, QC, Canada.,8 Department of Psychiatry, Jewish General Hospital, Montreal, QC, Canada
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Chan P. PO179 Novel Cardiac Protective Agent, AFC1, Attenuated Ischemic Reperfusion Induced Ventricular Remodeling via Inhibiting PDGFR and JAK/STAT Pathways. Glob Heart 2018. [DOI: 10.1016/j.gheart.2018.09.157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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70
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Nobis S, Morin A, Achamrah N, Belmonte L, Legrand R, Chan P, Do Rego J, Vaudry D, Dechelotte P, Goichon A, Coeffier M. Ralentissement de la vidange gastrique dans le modèle animal d’anorexie « activity-based anorexia » : rôle du métabolisme protéique ? NUTR CLIN METAB 2018. [DOI: 10.1016/j.nupar.2018.09.188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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71
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Novanta A, Herpe G, Vesselle G, Guibal A, Velasco S, Chan P, Ingrand P, Boucebi S, Tasu JP. Chart for renal tumor microwave ablation from human study. Diagn Interv Imaging 2018; 99:609-614. [DOI: 10.1016/j.diii.2018.05.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 04/28/2018] [Accepted: 05/15/2018] [Indexed: 10/28/2022]
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Villamor GA, Andras LM, Chan P, Jalloh H, Sanders AE, Yang J, Choi PD, Tolo VT, Skaggs DL. Stomaching the pain of spinal fusion: gastrointestinal discomfort is as severe as back pain in 50% of adolescent idiopathic scoliosis patients following posterior spinal fusion. J Child Orthop 2018; 12:539-543. [PMID: 30294380 PMCID: PMC6169568 DOI: 10.1302/1863-2548.12.180037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
PURPOSE There have been no prospective studies investigating gastrointestinal (GI) symptoms of patients with adolescent idiopathic scoliosis (AIS) following posterior spinal fusion (PSF). The purpose of this study was to evaluate the incidence and severity of self-reported GI symptoms following PSF. METHODS In all, 40 AIS patients undergoing PSF were prospectively enrolled between March 2015 and October 2016. Patients completed a survey on each postoperative, inpatient day regarding nausea, emesis, constipation, abdominal pain and back pain, rating their pain on a scale of 1 to 10. RESULTS Abdominal pain (50%), emesis (63%), nausea (65%) and constipation (68%) were experienced by the majority of patients. Of those reporting back pain, the mean pain level during the postoperative period was 5.1 (0.2 to 9.6). Of those reporting abdominal pain, the mean pain level during the postoperative period was 5.5 (1.4 to 8.6), which was not different than the severity of their back-pain levels (mean = 6.0, p = 0.31). CONCLUSIONS Gastrointestinal issues in AIS patients following PSF are common. Abdominal pain was as severe as the back pain for half of the patients. LEVEL OF EVIDENCE II.
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Affiliation(s)
- G. A. Villamor
- Children’s Orthopaedic Center, Children’s Hospital Los Angeles, Los Angeles, California, USA
| | - L. M. Andras
- Children’s Orthopaedic Center, Children’s Hospital Los Angeles, Los Angeles, California, USA
| | - P. Chan
- Children’s Orthopaedic Center, Children’s Hospital Los Angeles, Los Angeles, California, USA
| | - H. Jalloh
- Children’s Orthopaedic Center, Children’s Hospital Los Angeles, Los Angeles, California, USA
| | - A. E. Sanders
- Children’s Orthopaedic Center, Children’s Hospital Los Angeles, Los Angeles, California, USA
| | - J. Yang
- Children’s Orthopaedic Center, Children’s Hospital Los Angeles, Los Angeles, California, USA
| | - P. D. Choi
- Shriners for Children Medical Center, Pasadena, California, USA
| | - V. T. Tolo
- Children’s Orthopaedic Center, Children’s Hospital Los Angeles, Los Angeles, California, USA
| | - D. L. Skaggs
- Children’s Orthopaedic Center, Children’s Hospital Los Angeles, Los Angeles, California, USA, Correspondence should be sent to D. L. Skaggs, Children’s Orthopaedic Center, Children’s Hospital Los Angeles, 4650 Sunset Blvd, MS#69, Los Angeles, California 90027, USA. E-mail:
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Perez S, Lambert SD, Lee V, Loiselle CG, Chan P, Gupta A, Lo K, Rosberger Z, Zelkowitz P. A fertility needs assessment survey of male cancer patients. Psychooncology 2018; 27:2747-2753. [PMID: 30176700 DOI: 10.1002/pon.4874] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 08/16/2018] [Accepted: 08/20/2018] [Indexed: 01/19/2023]
Abstract
OBJECTIVE To describe fertility-related informational needs and practices, and to examine if demographic characteristics are related to these needs and practices. METHODS A needs assessment survey was conducted at three Canadian cancer centres. RESULTS 192 male cancer patients (Mage = 33.6) completed the survey. Most patients (70%) recalled having had a discussion with a health care provider regarding their fertility and 44% banked their sperm. Patients reported not getting all the information that they wanted, eg, the risk that a future child may have the same type of cancer (78%), and what was covered by insurance plans (71%). Barriers to sperm preservation were urgency to begin cancer treatment (49%), not planning to have a child in the future (47%) and worries that cancer could be passed on to future children (38%). Participants' age and being the parent of a child were significantly associated with having had a discussion about fertility. Participants' age, province, being the parent of a child and the desire for future children were significantly associated with fertility preservation. CONCLUSIONS Discussions with health care providers were more frequent, and fertility preservation rates were higher than in past studies, but still not all patients' questions were answered. Misconceptions about passing on cancer to one's child, and that sperm preservation will delay treatment, should be dispelled. Health care providers can ask patients if they have any desire to have children in the future as a way to initiate a discussion of fertility preservation. Key information gaps and psychosocial resource needs are suggested to fully meet male cancer patients' fertility-related concerns.
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Affiliation(s)
- Samara Perez
- Department of Psychiatry Montreal, McGill University, Montreal, QC, Canada.,Lady Davis Institute for Medical Research Montreal, Montreal, QC, Canada
| | - Sylvie D Lambert
- School of Nursing Montreal, McGill University Ingram School of Nursing Montreal, Montreal, QC, Canada.,St. Mary's Research Centre Montreal, Montreal, QC, Canada
| | - Virginia Lee
- McGill University Health Centre, Montreal, QC, Canada
| | - Carmen G Loiselle
- School of Nursing Montreal, McGill University Ingram School of Nursing Montreal, Montreal, QC, Canada.,Segal Cancer Center Montreal, Jewish General Hospital, Montreal, QC, Canada
| | - Peter Chan
- McGill University Health Centre, Montreal, QC, Canada
| | - Abha Gupta
- The Hospital for Sick Children, Toronto, ON, Canada
| | - Kirk Lo
- Mount Sinai Hospital, Toronto, ON, Canada
| | - Zeev Rosberger
- Department of Psychiatry Montreal, McGill University, Montreal, QC, Canada.,Lady Davis Institute for Medical Research Montreal, Montreal, QC, Canada.,Segal Cancer Center Montreal, Jewish General Hospital, Montreal, QC, Canada
| | - Phyllis Zelkowitz
- Department of Psychiatry Montreal, McGill University, Montreal, QC, Canada.,Lady Davis Institute for Medical Research Montreal, Montreal, QC, Canada.,Department of Psychiatry Montreal, Jewish General Hospital, Montreal, QC, Canada
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74
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Kirzner N, Etherington G, Ton L, Chan P, Paul E, Liew S, Humadi A. Relationship between facet joint distraction during anterior cervical discectomy and fusion for trauma and functional outcome. Bone Joint J 2018; 100-B:1201-1207. [DOI: 10.1302/0301-620x.100b9.bjj-2018-0199.r1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Aims The purpose of this retrospective study was to investigate the clinical relevance of increased facet joint distraction as a result of anterior cervical decompression and fusion (ACDF) for trauma. Patients and Methods A total of 155 patients (130 men, 25 women. Mean age 42.7 years; 16 to 87) who had undergone ACDF between 1 January 2001 and 1 January 2016 were included in the study. Outcome measures included the Neck Disability Index (NDI) and visual analogue scale (VAS) for pain. Lateral cervical spine radiographs taken in the immediate postoperative period were reviewed to compare the interfacet distance of the operated segment with those of the facet joints above and below. Results There was a statistically significant relationship between greater facet distraction and increased NDI and VAS pain scores. This was further confirmed by Spearman correlation, which showed evidence of a moderate correlation between both NDI score and facet joint distraction (Spearman correlation coefficient 0.34; p < 0.001) and VAS score and facet distraction (Spearman correlation coefficient 0.52; p < 0.001). Furthermore, there was a discernible transition point between outcome scores. Significantly worse outcomes, in terms of both NDI scores (17.8 vs 8.2; p < 0.001) and VAS scores (4.5 vs 1.3; p < 0.001), were seen with facet distraction of 3 mm or more. Patients who went on to have a posterior fusion also had increased NDI and VAS scores, independent of facet distraction. Conclusion After undergoing ACDF for the treatment of cervical spine injury, patients with facet joint distraction of 3 mm or more have worse NDI and VAS pain scores. Cite this article: Bone Joint J 2018;100-B:1201–7.
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Affiliation(s)
| | | | - L. Ton
- Alfred Hospital, Prahran, Australia
| | - P. Chan
- Alfred Hospital, Prahran, Australia
| | - E. Paul
- Alfred Hospital, Prahran, Australia
| | - S. Liew
- Alfred Hospital, Prahran, Australia
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Albert O, Huang JY, Aleksa K, Hales BF, Goodyer CG, Robaire B, Chevrier J, Chan P. Exposure to polybrominated diphenyl ethers and phthalates in healthy men living in the greater Montreal area: A study of hormonal balance and semen quality. Environ Int 2018; 116:165-175. [PMID: 29684825 DOI: 10.1016/j.envint.2018.04.012] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 04/04/2018] [Accepted: 04/06/2018] [Indexed: 06/08/2023]
Abstract
Studies investigating the associations between exposure of young men to polybrominated diphenyl ethers (PBDEs) or phthalates and hormone levels or semen quality have produced inconsistent results. Our goal was to investigate the association of exposure to PBDEs or phthalate metabolites with changes in markers of thyroid (TSH, free T3 and free T4) and reproductive function (sperm concentrations, motility, and quality; serum LH and testosterone) in 153 healthy young men from the greater Montreal area. Using covariate-adjusted models, we found that each 10-fold increase in BDE-47 was associated with lower TSH levels (-17.3%; 95% CI: -31.5, 0.0; p = 0.05). BDE-47 exposure was also associated with a decrease in sperm concentration (-19.7%; 95% CI: -36.8; 2.0; p = 0.07) and motility (-25.5%; 95% CI: -44.5, 0.1; p = 0.05). Trends towards decreases in these parameters were also observed in association with exposure to BDE-100 and the sum of BDE-47, -99, and -100 (∑3BDEs). These associations were not accompanied by effects on sperm chromatin quality, as assessed with the HT-COMET assay. There were no substantial associations between urinary phthalate metabolite concentrations, either individually or grouped by molecular weight or parent compound, and sperm quality parameters; however, there was a positive association between elevated MECCP and free T4 (0.98; 95% CI: 0.02, 1.94; p = 0.05). Inverse associations between BDE-47 and ∑3BDEs and free T3 and positive associations between MEHP and free T3 were stronger among individuals with BMI ≥ 25, suggesting that weight status may modify the effects of these endocrine disrupting chemicals.
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Affiliation(s)
- Océane Albert
- Department of Pharmacology and Therapeutics, McGill University, Montreal, QC, Canada
| | - Jonathan Y Huang
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, QC, Canada
| | - Katarina Aleksa
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada; Leslie Dan School of Pharmacy, University of Toronto, Toronto, ON, Canada
| | - Barbara F Hales
- Department of Pharmacology and Therapeutics, McGill University, Montreal, QC, Canada
| | - Cynthia G Goodyer
- Research Institute of McGill University Health Centre, Montreal, QC, Canada; Department of Pediatrics, McGill University, Montreal, QC, Canada
| | - Bernard Robaire
- Department of Pharmacology and Therapeutics, McGill University, Montreal, QC, Canada; Department of Obstetrics and Gynecology, McGill University, Montreal, QC, Canada
| | - Jonathan Chevrier
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, QC, Canada.
| | - Peter Chan
- Division of Urology, McGill University Health Centre, Montreal, QC, Canada
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Hoffman I, Lewis B, Chan P. Circulation of cosmogenic 22Na using the global monitoring network of the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO). J Environ Radioact 2018; 187:8-15. [PMID: 29459255 DOI: 10.1016/j.jenvrad.2018.01.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 01/23/2018] [Accepted: 01/23/2018] [Indexed: 06/08/2023]
Abstract
Using a recently published global data set of 22Na and 7Be from the global monitoring network of the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO), atmospheric circulation and stratosphere-troposphere interactions are examined. Cosmogenic 22Na has a half-life well-suited to environmental processes with durations from several months to a decade. Combined with corresponding 7Be observations, these two cosmogenic isotopes form a useful environmental tracer and new radiochronometer to study physical interactions of air masses in the stratosphere and troposphere.
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Affiliation(s)
- I Hoffman
- Radiation Protection Bureau, Health Canada, 775 Brookfield Rd., Ottawa, Ontario, Canada.
| | - B Lewis
- Department of Chemistry and Chemical Engineering, Royal Military College of Canada, PO Box 17000, Kingston, Ontario, Canada
| | - P Chan
- Department of Chemistry and Chemical Engineering, Royal Military College of Canada, PO Box 17000, Kingston, Ontario, Canada
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77
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Nobis S, Morin A, Achamrah N, Belmonte L, Legrand R, Chan P, do Rego JL, Vaudry D, Gourcerol G, Déchelotte P, Goichon A, Coëffier M. Delayed gastric emptying and altered antrum protein metabolism during activity-based anorexia. Neurogastroenterol Motil 2018; 30:e13305. [PMID: 29411462 DOI: 10.1111/nmo.13305] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 01/05/2018] [Indexed: 12/17/2022]
Abstract
BACKGROUND Anorexia nervosa, a restrictive eating disorder, is often associated with gastrointestinal disorders, particularly a delayed gastric emptying. However, the mechanisms remained poorly documented. Thus, we aimed to evaluate gastric emptying and antrum protein metabolism in the Activity-Based Anorexia model (ABA). METHODS Females C57Bl/6 mice were randomized into 3 groups: Control, ABA, and Limited Food Access (LFA). Food access has been progressively limited from 6 h/day at day 6 to 3 h/day at day 9 and until day 17. ABA mice had free access to an activity wheel. Gastric emptying was assessed. On gastric extracts, a proteomic analysis was performed, as well as an evaluation of protein synthesis and protein oxidation. KEY RESULTS Both LFA and ABA mice exhibited a delayed gastric emptying compared with Controls (P < .05). Proteomic approach revealed 15 proteins that were differentially expressed. Among these proteins, we identified 2 clusters of interest contributing to (i) the organization of muscle fiber with ACTA2, VCL, KRT19, KRT8, and DES proteins and (ii) "heat shock proteins" with STIP1, HSPD1, and HSPA8 proteins. ABA mice specifically exhibited an increased rate of gastric oxidized proteins. CONCLUSIONS AND INFERENCES Delayed gastric emptying observed in anorectic conditions appears to be secondary to malnutrition. However, an oxidative stress is specifically present in the stomach of ABA mice. Its role remains to be further studied.
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Affiliation(s)
- S Nobis
- INSERM Unit 1073, UNIROUEN, Normandie University, Rouen, France.,Institute for Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, Rouen, France
| | - A Morin
- INSERM Unit 1073, UNIROUEN, Normandie University, Rouen, France.,Institute for Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, Rouen, France
| | - N Achamrah
- INSERM Unit 1073, UNIROUEN, Normandie University, Rouen, France.,Institute for Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, Rouen, France.,Nutrition Department, Rouen University Hospital, Rouen, France
| | - L Belmonte
- INSERM Unit 1073, UNIROUEN, Normandie University, Rouen, France.,Institute for Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, Rouen, France.,Nutrition Department, Rouen University Hospital, Rouen, France
| | - R Legrand
- INSERM Unit 1073, UNIROUEN, Normandie University, Rouen, France.,Institute for Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, Rouen, France
| | - P Chan
- Institute for Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, Rouen, France.,Platform in proteomics PISSARO, UNIROUEN, Normandie University, Rouen, France
| | - J-L do Rego
- Institute for Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, Rouen, France.,Animal Behaviour Platform SCAC, UNIROUEN, Normandie University, Rouen, France
| | - D Vaudry
- Institute for Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, Rouen, France.,Platform in proteomics PISSARO, UNIROUEN, Normandie University, Rouen, France.,INSERM Unit 1239, UNIROUEN, Normandie University, Rouen, France
| | - G Gourcerol
- INSERM Unit 1073, UNIROUEN, Normandie University, Rouen, France.,Institute for Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, Rouen, France.,Physiology Department, Rouen University Hospital, Rouen, France
| | - P Déchelotte
- INSERM Unit 1073, UNIROUEN, Normandie University, Rouen, France.,Institute for Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, Rouen, France.,Nutrition Department, Rouen University Hospital, Rouen, France
| | - A Goichon
- INSERM Unit 1073, UNIROUEN, Normandie University, Rouen, France.,Institute for Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, Rouen, France
| | - M Coëffier
- INSERM Unit 1073, UNIROUEN, Normandie University, Rouen, France.,Institute for Research and Innovation in Biomedicine (IRIB), UNIROUEN, Normandie University, Rouen, France.,Nutrition Department, Rouen University Hospital, Rouen, France
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Leung FK, Lau TW, Yuen GW, Chan EM, Chan P, Lam RY. Effectiveness of a multidisciplinary approach to geriatric hip fractures in improving clinical outcomes and cost of care. Hong Kong Med J 2018; 24 Suppl 2:45-47. [PMID: 29938659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023] Open
Affiliation(s)
- F Kl Leung
- Department of Orthopaedics and Traumatology, The University of Hong Kong
| | - T W Lau
- Department of Orthopaedics and Traumatology, Queen Mary Hospital
| | - G Wy Yuen
- School of Nursing, The University of Hong Kong
| | - E Mt Chan
- Department of Occupational Therapy, Queen Mary Hospital
| | - P Chan
- Central Nursing Department, Queen Mary Hospital
| | - R Yh Lam
- Physiotherapy Department, Queen Mary Hospital
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Abstract
OBJECTIVE Frailty, which involves low physical activity (PA), is as a well-established factor of increased risk of hospitalization, disability, and mortality. To date, there are no specific tools to assess PA among Chinese elderly. As part of the Beijing Longitudinal Study of Aging (BLSA), we aimed to develop the BLSA Leisure-Time Physical Activity Questionnaire (BLSA-PAQ) and assess its prediction of mortality. DESIGN Longitudinal study. SETTING Community. PARTICIPANTS 1810 Chinese older adults completed the BLSA-PAQ questionnaire. MEASUREMENTS BLSA-PAQ questionnaire containing four items: walking, outdoor chores, low-intensity exercise, and moderate-intensity exercise. Physical function was assessed through the balance test, chair-stand test, and the activities of daily living (ADL), and instrumental activities of daily living (IADL). Frailty was evaluated using a modified frailty phenotype and frailty index. RESULTS The following equation was obtained based on the 8-year mortality for the four BLSA-PAQ components: BLSA-PAQ index (BLSA-PAQ total score) = Walking score + Outdoor chores score + 2 × (low-intensity exercise score) + 3 × (moderate-intensity exercise score). The BLSA-PAQ index decreased with age, and was negatively related to modified frailty phenotype score and frailty index. Low PA and pre-low PA statuses were associated with poorer results in the balance and chair-stand tests, ADL dependency, IADL dependency, and frailty. After adjusting for age and gender, the 8-year mortality HRs were 1.453 (95% CI, 1.166-1.811) and 2.358 (95% CI, 1.856-2.995) for low PA and pre-low PA, respectively. Low PA defined by the BLSA-PAQ index was associated with frailty, disability, worse physical function, and higher mortality. CONCLUSION The BLSA-PAQ seems to be a reliable tool to measure PA in Chinese older adults. Further studies are needed to confirm these findings and validate the use of the BLSA-PAQ for frailty assessments of older adults.
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Affiliation(s)
- L Ma
- Dr. Zhe Tang, Beijing Geriatric Healthcare Center, Xuanwu Hospital, Capital Medical University, #45 Changchun Street, Xicheng District, Beijing 100053, China. Tel: 86-010-63162077, Fax: 86-010-63162077. E-mail address:
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81
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Gilman AR, Younes G, Tannus S, Son WY, Chan P, Buckett W. Does using testicular sperm retrieval rather than ejaculated spermatozoa improve reproductive outcomes in couples with previous ART failure and poor ovarian response? A case-controlled study. Andrology 2017; 6:142-145. [PMID: 29195015 DOI: 10.1111/andr.12447] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 09/16/2017] [Accepted: 10/24/2017] [Indexed: 01/23/2023]
Abstract
The objective of this study was to assess whether testicular-retrieved spermatozoa improve reproductive outcomes compared to fresh ejaculate in women with poor ovarian response and a history of previous ART failure. The study was performed as a retrospective case-control study at a university-based reproductive center in Montreal, Quebec, Canada. Eighteen poor-responder patients were matched 3 : 1 with 54 controls. Poor responders were defined as those with ≤3 oocytes retrieved at oocyte pickup. Cases were identified as poor responders, and only those with previous IVF failure(s) as an indication for testicular-retrieved spermatozoa were included. Controls were age and cycle attempt number matched. All patients were included only once. From January 1, 2009 to December 31, 2015, all patients and controls underwent an IVF cycle using ICSI with either testicular spermatozoa or ejaculated spermatozoa, respectively. Outcomes included live birth rate, pregnancy rate, miscarriage rate, oocyte number, and embryo transfer (ET) day. The results showed live birth rates, pregnancy rates, and miscarriage rates were similar. There were fewer day 2 ETs (8.5% vs. 48.6%, p = 0.01) and more day 5 blastocyst transfers (25.0% vs. 5.4%, p = 0.05) in the testicular sperm retrieval group compared to controls and thus an overall suggestion of better embryo quality in the testicular sperm group. Overall, however, the use of testicular sperm retrieval appears to add little. Women with poor ovarian response typically have a poor prognosis with respect to live birth rates, and this is further supported in this study. The suggestion of better embryo quality in the testicular-retrieved sperm group would need to be further assessed in a larger multicentered study.
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Affiliation(s)
- A R Gilman
- MUHC Reproductive Centre, Montréal, QC, Canada
| | - G Younes
- MUHC Reproductive Centre, Montréal, QC, Canada
| | - S Tannus
- MUHC Reproductive Centre, Montréal, QC, Canada
| | - W Y Son
- MUHC Reproductive Centre, Montréal, QC, Canada
| | - P Chan
- MUHC Reproductive Centre, Montréal, QC, Canada
| | - W Buckett
- MUHC Reproductive Centre, Montréal, QC, Canada
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82
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Da Costa D, Zelkowitz P, Letourneau N, Howlett A, Dennis CL, Russell B, Grover S, Lowensteyn I, Chan P, Khalifé S. HealthyDads.ca: What Do Men Want in a Website Designed to Promote Emotional Wellness and Healthy Behaviors During the Transition to Parenthood? J Med Internet Res 2017; 19:e325. [PMID: 29021126 PMCID: PMC5658653 DOI: 10.2196/jmir.7415] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 07/19/2017] [Accepted: 07/27/2017] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Up to 18% of men experience depression and/or anxiety during the transition to parenthood. Interventions designed specifically to promote the mental health of men during the transition to parenthood are scarce. Internet-delivered interventions may be acceptable and far-reaching in enhancing mental health, parenting knowledge, and healthy behaviors in expectant or new fathers. OBJECTIVE To guide the development of Healthydads.ca, a website designed to enhance mental health and healthy behaviors in expectant fathers, a needs assessment was conducted to identify fathers' perspectives of barriers to seeking help for emotional wellness, informational needs, and factors affecting the decision to visit such a website. METHODS One hundred and seventy-four men whose partners were expecting, or had recently given birth, in 3 Canadian provinces (Quebec, Ontario, and Alberta) completed a Web-based survey inquiring about information needs related to psychosocial aspects of the transition to parenthood, lifestyle behaviors, parenting, and factors associated with the decision to visit a father-focused website. RESULTS Most men (155/174, 89.1%) reported accessing the Internet to obtain information on pregnancy and spent an average of 6.2 hours online per month. Seeking information about parenting on the Internet was reported by 67.2% (117/174) of men, with a mean of 4.4 hours per month of online searching. Top barriers to seeking help to improve emotional wellness during the perinatal period were: no time to seek help/assistance (130/174, 74.7%), lack of resources available in the health care system (126/174, 72.4%), financial costs associated with services (118/174, 67.8%), and feeling that one should be able to do it alone (113/174, 64.9%). Information needs that were rated highly included: parenting/infant care (52.9-81.6%), supporting (121/174, 69.5%) and improving (124/174, 71.3%) relationship with their partner, work-family balance (120/174, 69.0%), improving sleep (100/174, 57.5%), and managing stress (98/174, 56.3%). Perceiving the website as personally relevant (151/174, 86.8%), credible (141/174, 81.0%), effective (140/145, 80.5%), and having an easy navigation structure (141/174, 81.0%) were identified as important factors related to a first website visit. Providing useful (134/174, 77.0%) and easy to understand (158/174, 90.8%) information, which was also free of charge (156/174, 89.7%), were considered important for deciding to prolong a website visit. Providing the possibility to post questions to a health professional (133/174, 76.4%), adding new content regularly (119/174, 68.4%), and personal motivation (111/174, 63.8%) were factors identified that would encourage a revisit. CONCLUSIONS Our findings demonstrate that there is substantial interest among expectant and new fathers for using Internet-delivered strategies to prepare for the transition to parenthood and support their mental health. Specific user and website features were identified to optimize the use of father-focused websites.
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Affiliation(s)
| | - Phyllis Zelkowitz
- Department of Psychiatry, Jewish General Hospital, Montreal, QC, Canada.,Lady Davis Institute for Medical Research, Montreal, QC, Canada
| | - Nicole Letourneau
- Faculty of Nursing, University of Calgary, Calgary, AB, Canada.,Cumming School of Medicine, Pediatrics & Psychiatry, Alberta Children's Hospital Research Institute for Child and Maternal Health, Calgary, AB, Canada
| | - Andrew Howlett
- Department of Psychiatry, St. Joseph's Health Centre, Toronto, ON, Canada
| | - Cindy-Lee Dennis
- Lawrence Bloomberg Faculty of Nursing, University of Toronto, Toronto, ON, Canada
| | | | - Steven Grover
- Department of Medicine, McGill University, Montreal, QC, Canada
| | - Ilka Lowensteyn
- Department of Medicine, McGill University, Montreal, QC, Canada
| | - Peter Chan
- Department of Urology, McGill University Health Centre, Montreal, QC, Canada
| | - Samir Khalifé
- Department of Obstetrics and Gynecology, Jewish General Hospital, Montreal, QC, Canada
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83
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Goichon A, Ghouzali I, Bahlouli W, Chan P, Vaudry D, Déchelotte P, Ducrotté P, Coëffier M. SUN-P116: Immunoproteasome Subunit Beta2i Deficiency Modifies Colonic Proteome in Stressed Mice: Putative Role for Irritable Bowel Syndrome. Clin Nutr 2017. [DOI: 10.1016/s0261-5614(17)30511-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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84
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Affiliation(s)
| | - Grace Tan
- OriginElle Fertility Clinic and Women's Health Centre, Montreal, QC, Canada.,Department of Epidemiology, Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Peter Chan
- OriginElle Fertility Clinic and Women's Health Centre, Montreal, QC, Canada.,Division of Urology, Department of Surgery, McGill University, Montreal, QC, Canada
| | - Seang Lin Tan
- OriginElle Fertility Clinic and Women's Health Centre, Montreal, QC, Canada.,Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, McGill University, Montreal, QC, Canada
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85
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Ng S, Chan P, Si Tou J, Tse M. THE TIMED UP AND GO TEST WITH ADDITIONAL MOTOR TASK FOR ASSESSING OLDER ADULTS WITH CHRONIC STROKE. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- S. Ng
- The Hong Kong Polytechnic University, Hung Hom, Hong Kong
| | - P. Chan
- The Hong Kong Polytechnic University, Hung Hom, Hong Kong
| | - J. Si Tou
- The Hong Kong Polytechnic University, Hung Hom, Hong Kong
| | - M. Tse
- The Hong Kong Polytechnic University, Hung Hom, Hong Kong
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86
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Affiliation(s)
- F. Liu
- Department of Emergency, Xuanwu Hospital of Capital Medical University, Beijing, China,
| | - J. Qin
- Department of Emergency, Xuanwu Hospital of Capital Medical University, Beijing, China,
| | - X. Liang
- Department of Emergency, Xuanwu Hospital of Capital Medical University, Beijing, China,
| | - J. Wang
- Department of Emergency, Xuanwu Hospital of Capital Medical University, Beijing, China,
| | - P. Chan
- Department of Geriatrics, Beijing Institute of Geriatrics, Xuanwu Hospital of Capital Medical University, Beijing, China,
- Department of Neurobiology, Beijing Institute of Geriatrics, Xuanwu Hospital of Capital Medical University, Beijing, China,
- Department of Neurology, Beijing Institute of Geriatrics, Xuanwu Hospital of Capital Medical University, Beijing, China
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87
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Katigbak C, Zuo S, Chan P. CHINESE IMMIGRANTS’ VIEWS ON EXERCISE AND USING TECHNOLOGY TO ENHANCE PHYSICAL ACTIVITY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- C. Katigbak
- Connell School of Nursing, Boston College, Chestnut Hill, Massachusetts,
| | - S. Zuo
- Connell School of Nursing, Boston College, Chestnut Hill, Massachusetts,
| | - P. Chan
- Chinese Consolidated Benevolent Association of New England, Boston, Massachusetts
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Jewell M, Delva NJ, Graf P, Chan P, Enns M, Gosselin C, Gilron I, Lawson JS, Martin B, Milev R, Patry S, Bonifacio M. A National Survey on Nursing in Canadian ECT Departments. Arch Psychiatr Nurs 2017; 31:302-305. [PMID: 28499572 DOI: 10.1016/j.apnu.2017.02.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Accepted: 02/04/2017] [Indexed: 10/20/2022]
Affiliation(s)
- Mark Jewell
- Addiction & Mental Health, Alberta Health Services, Canada.
| | | | - Peter Graf
- Department of Psychology, University of British Columbia, Canada
| | - Peter Chan
- Department of Psychiatry, University of British Columbia, Canada
| | - Murray Enns
- Department of Psychiatry, University of Manitoba, Canada
| | | | - Ian Gilron
- Department of Anesthesiology & Preoperative Medicine and Biomedical & Molecular Sciences, Queen's University, Canada
| | | | - Barry Martin
- Department of Psychiatry, University of Toronto, Canada
| | - Roumen Milev
- Department of Psychiatry, Queen's University, Canada
| | - Simon Patry
- Department of Psychiatry, Universite Laval, Canada
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Cotelle P, Chan P, Cotelle N, Bernier JL, Hénichart JP. Active site model peptides of glutathione peroxidase : a 77Se NMR study. ACTA ACUST UNITED AC 2017. [DOI: 10.1051/jcp/1992890191] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Chan P, Vélasco S, Vesselle G, Boucebci S, Herpe G, Debaene B, Ingrand P, Irani J, Tasu JP. Percutaneous microwave ablation of renal cancers under CT guidance: safety and efficacy with a 2-year follow-up. Clin Radiol 2017; 72:786-792. [PMID: 28545682 DOI: 10.1016/j.crad.2017.03.029] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 02/21/2017] [Accepted: 03/13/2017] [Indexed: 01/20/2023]
Abstract
AIM To evaluate the safety and efficiency of percutaneous microwave ablation (MWA) of renal cell carcinomas (RCC) carried out under computed tomography (CT) guidance. MATERIALS AND METHODS A retrospective study was performed on RCC that was either histologically proven or diagnosed at imaging (Bosniak IV cyst) and treated by MWA under general anaesthesia with CT guidance. Indications for percutaneous ablation were based on the American Urological Association recommendations. Twenty-four months post-procedure follow-up was performed. RESULTS Sixty-two patients presenting one or more RCC (84 tumours ranging from 10-48 mm in diameter; mean diameter: 25.6 mm) were included. Technical success was achieved for 78 tumours (58 patients). For four patients, the treatment was stopped due to gas dissection failure. At 3 months, six residual tumours were observed (8%). At 6 months, two recurrences and one residual tumour (3.8%) were observed; all were retreated with complete success. At 12 months, local control of the disease was achieved in 94% of cases (100% in cases where treatment was performed). Two cases of distal metastasis were observed after 12 and 24 months. At 24 months, one patient presented with a contralateral tumour. The complication rate was 4.8% including one grade III complication and two grade II complications according to the Clavien-Dindo classification. At 2 years, the cumulative disease-free survival rate and overall survival were 95% and 97%, respectively. CONCLUSION MWA ablation under CT guidance to treat RCC is safe and provides a high rate of effectiveness at 24 months.
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Affiliation(s)
- P Chan
- Imaging Department, CHU de Poitiers, 2 rue de la milétrie, 86000 CHU de Poitiers, France
| | - S Vélasco
- Imaging Department, CHU de Poitiers, 2 rue de la milétrie, 86000 CHU de Poitiers, France
| | - G Vesselle
- Imaging Department, CHU de Poitiers, 2 rue de la milétrie, 86000 CHU de Poitiers, France
| | - S Boucebci
- Imaging Department, CHU de Poitiers, 2 rue de la milétrie, 86000 CHU de Poitiers, France
| | - G Herpe
- Imaging Department, CHU de Poitiers, 2 rue de la milétrie, 86000 CHU de Poitiers, France
| | - B Debaene
- Anesthesiology Department, CHU de Poitiers, 2 rue de la milétrie, 86000 CHU de Poitiers, France
| | - P Ingrand
- Inserm U619, CHU de Poitiers et University of Poitiers, rue de la milétrie, 86000 CHU de Poitiers, France
| | - J Irani
- Inserm U619, CHU de Poitiers et University of Poitiers, rue de la milétrie, 86000 CHU de Poitiers, France; Urology Department, CHU de Poitiers, 2 rue de la milétrie, 86000 CHU de Poitiers, France
| | - J-P Tasu
- Imaging Department, CHU de Poitiers, 2 rue de la milétrie, 86000 CHU de Poitiers, France.
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91
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Erdem H, Inan A, Guven E, Hargreaves S, Larsen L, Shehata G, Pernicova E, Khan E, Bastakova L, Namani S, Harxhi A, Roganovic T, Lakatos B, Uysal S, Sipahi OR, Crisan A, Miftode E, Stebel R, Jegorovic B, Fehér Z, Jekkel C, Pandak N, Moravveji A, Yilmaz H, Khalifa A, Musabak U, Yilmaz S, Jouhar A, Oztoprak N, Argemi X, Baldeyrou M, Bellaud G, Moroti RV, Hasbun R, Salazar L, Tekin R, Canestri A, Čalkić L, Praticò L, Yilmaz-Karadag F, Santos L, Pinto A, Kaptan F, Bossi P, Aron J, Duissenova A, Shopayeva G, Utaganov B, Grgic S, Ersoz G, Wu AKL, Lung KC, Bruzsa A, Radic LB, Kahraman H, Momen-Heravi M, Kulzhanova S, Rigo F, Konkayeva M, Smagulova Z, Tang T, Chan P, Ahmetagic S, Porobic-Jahic H, Moradi F, Kaya S, Cag Y, Bohr A, Artuk C, Celik I, Amsilli M, Gul HC, Cascio A, Lanzafame M, Nassar M. The burden and epidemiology of community-acquired central nervous system infections: a multinational study. Eur J Clin Microbiol Infect Dis 2017; 36:1595-1611. [PMID: 28397100 DOI: 10.1007/s10096-017-2973-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Accepted: 03/22/2017] [Indexed: 12/11/2022]
Abstract
Risk assessment of central nervous system (CNS) infection patients is of key importance in predicting likely pathogens. However, data are lacking on the epidemiology globally. We performed a multicenter study to understand the burden of community-acquired CNS (CA-CNS) infections between 2012 and 2014. A total of 2583 patients with CA-CNS infections were included from 37 referral centers in 20 countries. Of these, 477 (18.5%) patients survived with sequelae and 227 (8.8%) died, and 1879 (72.7%) patients were discharged with complete cure. The most frequent infecting pathogens in this study were Streptococcus pneumoniae (n = 206, 8%) and Mycobacterium tuberculosis (n = 152, 5.9%). Varicella zoster virus and Listeria were other common pathogens in the elderly. Although staphylococci and Listeria resulted in frequent infections in immunocompromised patients, cryptococci were leading pathogens in human immunodeficiency virus (HIV)-positive individuals. Among the patients with any proven etiology, 96 (8.9%) patients presented with clinical features of a chronic CNS disease. Neurosyphilis, neurobrucellosis, neuroborreliosis, and CNS tuberculosis had a predilection to present chronic courses. Listeria monocytogenes, Staphylococcus aureus, M. tuberculosis, and S. pneumoniae were the most fatal forms, while sequelae were significantly higher for herpes simplex virus type 1 (p < 0.05 for all). Tackling the high burden of CNS infections globally can only be achieved with effective pneumococcal immunization and strategies to eliminate tuberculosis, and more must be done to improve diagnostic capacity.
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Affiliation(s)
- H Erdem
- Principal Coordinator of ID-IRI, Ankara, Turkey.
- Department of Infectious Diseases and Clinical Microbiology, Gulhane Medical Academy, 06010, Etlik, Ankara, Turkey.
| | - A Inan
- Department of Infectious Diseases and Clinical Microbiology, Haydarpasa Numune Training and Research Hospital, Istanbul, Turkey
| | - E Guven
- Beytepe Murat Erdi Eker State Hospital, Ankara, Turkey
| | - S Hargreaves
- International Health Unit, Section of Infectious Diseases and Immunity, Commonwealth Building, Hammersmith Campus, Imperial College London, London, UK
| | - L Larsen
- Department of Infectious Diseases Q, Odense University Hospital, Odense, Denmark
| | - G Shehata
- Department of Neurology and Psychiatry, Assiut University Hospital, Assiut, Egypt
| | - E Pernicova
- Avenier, Centres for Vaccination and Travel Medicine, Prague, Czech Republic
- Faculty Hospital Brno, Department of Infectious Diseases, Brno, Czech Republic
| | - E Khan
- Shifa International Hospital, Islamabad, Pakistan
| | - L Bastakova
- Faculty Hospital Brno, Department of Infectious Diseases and Masaryk University Faculty of Medicine, Brno, Czech Republic
| | - S Namani
- Infectious Diseases Clinic, University Clinical Center of Kosovo, Prishtina, Kosovo
| | - A Harxhi
- Service of Infectious Disease, University Hospital Center of Tirana, Tirana, Albania
| | - T Roganovic
- Infectious Diseases Clinic, University Hospital Clinical Center Banja Luka, Banja Luka, Bosnia and Herzegovina
| | - B Lakatos
- Department of Infectious Diseases, Saint Laszlo Hospital, Budapest, Hungary
| | - S Uysal
- Department of Infectious Diseases and Clinical Microbiology, Seyfi Demirsoy State Hospital, Buca, İzmir, Turkey
| | - O R Sipahi
- Department of Infectious Diseases and Clinical Microbiology, Ege University School of Medicine, Izmir, Turkey
| | - A Crisan
- Department of Infectious Diseases, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - E Miftode
- Hospital of Infectious Diseases, Gr. T. Popa University of Medicine and Pharmacy, Iasi, Romania
| | - R Stebel
- Faculty Hospital Brno, Department of Infectious Diseases and Masaryk University Faculty of Medicine, Brno, Czech Republic
| | - B Jegorovic
- Clinic for Infectious and Tropical Diseases, Clinical Centre of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Z Fehér
- Department of Infectious Diseases, Markusovszky University Teaching Hospital, Szombathely, Hungary
| | - C Jekkel
- Department of Infectious Diseases, Saint Laszlo Hospital, Budapest, Hungary
| | - N Pandak
- General Hospital Slavonski Brod, Department for Infectious Diseases, School of Medicine, University of Split, Split, Croatia
| | - A Moravveji
- Social Determinants of Health Research Center, Department of Community Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - H Yilmaz
- Department of Infectious Diseases and Clinical Microbiology, Ondokuz Mayis University School of Medicine, Samsun, Turkey
| | - A Khalifa
- Department of Neurology, Damascus Hospital, Damascus, Syria
| | - U Musabak
- Department of Immunology and Allergy, Losante Hospital, Ankara, Turkey
| | - S Yilmaz
- Gulhane Medical Academy, Blood Bank, Clinical Microbiology Division, Ankara, Turkey
| | - A Jouhar
- Department of Neurology, Damascus Hospital, Damascus, Syria
| | - N Oztoprak
- Antalya Education and Research Hospital, Antalya, Turkey
| | - X Argemi
- Infectious Diseases Department, Nouvel Hôpital Civil, Strasbourg, France
| | - M Baldeyrou
- Infectious Diseases Department, Nouvel Hôpital Civil, Strasbourg, France
| | - G Bellaud
- Department of Infectious Diseases, Tenon University Hospital, Paris, France
| | - R V Moroti
- Carol Davila University of Medicine and Pharmacy and Matei Bals National Institute for Infectious Diseases, Bucharest, Romania
| | - R Hasbun
- Medical School, Department of Infectious Diseases, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - L Salazar
- Medical School, Department of Infectious Diseases, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - R Tekin
- Department of Infectious Diseases and Clinical Microbiology, Dicle University School of Medicine, Diyarbakir, Turkey
| | - A Canestri
- Department of Infectious Diseases, Tenon University Hospital, Paris, France
| | - L Čalkić
- Department of Infectious Diseases, Zenica Cantonal Hospital, Zenica, Bosnia and Herzegovina
| | - L Praticò
- University Division of Infectious and Tropical Diseases, Piazza Spedali Civili, 25123, Brescia, Italy
| | - F Yilmaz-Karadag
- Goztepe Training and Research Hospital, Department of Infectious Diseases and Clinical Microbiology, Medeniyet University, Istanbul, Turkey
| | - L Santos
- Infectious Diseases Service, Centro Hospitalar São João and Faculty of Medicine, University of Porto, Porto, Portugal
| | - A Pinto
- Infectious Diseases Service, Centro Hospitalar São João and Faculty of Medicine, University of Porto, Porto, Portugal
| | - F Kaptan
- Department of Infectious Diseases and Clinical Microbiology, Katip Celebi University School of Medicine, Izmir, Turkey
| | - P Bossi
- Department Maladies Infectieuses, Institut Pasteur de Paris-HPA, Paris, France
| | - J Aron
- Department Maladies Infectieuses, Institut Pasteur de Paris-HPA, Paris, France
| | - A Duissenova
- Department of Infectious and Tropical Diseases, Asfendiyarov Kazakh National Medical University, Almaty, Kazakhstan
| | - G Shopayeva
- Department of Infectious and Tropical Diseases, Asfendiyarov Kazakh National Medical University, Almaty, Kazakhstan
| | - B Utaganov
- Department of Infectious and Tropical Diseases, Asfendiyarov Kazakh National Medical University, Almaty, Kazakhstan
| | - S Grgic
- Clinic for Infectious Diseases, University Hospital of Mostar, Mostar, Bosnia and Herzegovina
| | - G Ersoz
- Department of Infectious Diseases and Clinical Microbiology, Mersin University School of Medicine, Mersin, Turkey
| | - A K L Wu
- Department of Clinical Pathology, Pamela Youde Nethersole Eastern Hospital, Hong Kong SAR, China
| | - K C Lung
- Department of Clinical Pathology, Pamela Youde Nethersole Eastern Hospital, Hong Kong SAR, China
| | - A Bruzsa
- Department of Infectious Diseases, Saint Laszlo Hospital, Budapest, Hungary
| | - L B Radic
- Department of Infectious Diseases, General Hospital Dubrovnik, Dubrovnik, Croatia
| | - H Kahraman
- Department of Infectious Diseases and Clinical Microbiology, Ege University School of Medicine, Izmir, Turkey
| | - M Momen-Heravi
- Department of Infectious Diseases, Social Determinants of Health Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - S Kulzhanova
- Department of Infectious Diseases, Astana Medical University, Astana, Kazakhstan
| | - F Rigo
- Unit of Infectious Diseases, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - M Konkayeva
- Department of Infectious Diseases, Astana Medical University, Astana, Kazakhstan
| | - Z Smagulova
- Department of Infectious Diseases, Astana Medical University, Astana, Kazakhstan
| | - T Tang
- Infectious Diseases Team, Department of Medicine, Queen Elizabeth Hospital, Hong Kong, China
| | - P Chan
- Neurology Team, Department of Medicine, Queen Elizabeth Hospital, Hong Kong, China
| | - S Ahmetagic
- University Clinical Center Tuzla, Tuzla, Bosnia and Herzegovina
| | - H Porobic-Jahic
- University Clinical Center Tuzla, Tuzla, Bosnia and Herzegovina
| | - F Moradi
- Infectious and Tropical Diseases Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - S Kaya
- Department of Infectious Diseases and Clinical Microbiology, Karadeniz Technical University School of Medicine, Trabzon, Turkey
| | - Y Cag
- School of Medicine, Department of Infectious Diseases and Clinical Microbiology, Medeniyet University, Istanbul, Turkey
| | - A Bohr
- Institute of Inflammation Research, Department of Infectious Diseases and Rheumatology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - C Artuk
- Department of Infectious Diseases and Clinical Microbiology, Gulhane Training and Research Hospital, Ankara, Turkey
| | - I Celik
- Department of Infectious Diseases and Clinical Microbiology, Kayseri Training and Research Hospital, Kayseri, Turkey
| | - M Amsilli
- Infectious Diseases Unit, CHU Bicètre, Paris, France
| | - H C Gul
- Department of Infectious Diseases and Clinical Microbiology, Gulhane Training and Research Hospital, Ankara, Turkey
| | - A Cascio
- Department of Health Promotion Sciences and Mother and Child Care "G. D'Alessandro", University of Palermo, Palermo, Italy
| | - M Lanzafame
- Unit of Infectious Diseases, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - M Nassar
- Infection Control Department, Saudi German Hospital Group, Jeddah, Saudi Arabia
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92
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Hoffman I, Lewis B, Chan P, Ungar K. Analysis of 22Na using a spectral summation technique on high-volume aerosol samples. J Environ Radioact 2017; 169-170:151-158. [PMID: 28119208 DOI: 10.1016/j.jenvrad.2017.01.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 01/06/2017] [Accepted: 01/07/2017] [Indexed: 06/06/2023]
Abstract
Measurement of cosmogenic 22Na in daily aerosol samples is often difficult due to low atmospheric production rates. A new technique based upon spectral summation of sequential high-volume aerosol samples to measure 22Na is described and validated. This summation technique has broad applications to any detection system that produces sequential representative sample measurements in which radioisotopes are just below the detection limit, provided the energy calibration is stable. It is anticipated that a global dataset of this radionuclide will have many important environmental science applications.
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Affiliation(s)
- I Hoffman
- Radiation Protection Bureau, Health Canada, 775 Brookfield Rd., Ottawa, Ontario, Canada.
| | - B Lewis
- Department of Chemistry and Chemical Engineering, Royal Military College of Canada, PO Box 17000, Kingston, Ontario, Canada
| | - P Chan
- Department of Chemistry and Chemical Engineering, Royal Military College of Canada, PO Box 17000, Kingston, Ontario, Canada
| | - K Ungar
- Radiation Protection Bureau, Health Canada, 775 Brookfield Rd., Ottawa, Ontario, Canada
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93
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Nobis S, Goichon A, Achamrah N, Guérin C, Azhar S, Chan P, Do-Rego JC, Vaudry D, Déchelotte P, Belmonte L, Coëffier M. Activation de l’autophagie au niveau colique dans un modèle d’anorexie chez la souris. NUTR CLIN METAB 2017. [DOI: 10.1016/j.nupar.2016.10.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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94
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Chan H, Korobelnik J, Léger F, Durieux M, Robinet-Perrin A, Chan P, Longueville E, Paya C. Importance de la séquence de diffusion en IRM dans le diagnostic des lymphomes orbitaires. J Fr Ophtalmol 2017; 40:e37-e39. [DOI: 10.1016/j.jfo.2015.10.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 10/12/2015] [Accepted: 10/21/2015] [Indexed: 11/28/2022]
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95
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Wang B, Liu J, Hua Y, Huang L, Huang K, Kompa A, Chan P, Fan H, Liu Z. Platelet-Derived Growth Factor Receptor β But Not α Mediates Cardiac Fibrosis In Vitro and In Vivo. Heart Lung Circ 2017. [DOI: 10.1016/j.hlc.2017.06.225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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96
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Chan D, McGraw S, Klein K, Wallock LM, Konermann C, Plass C, Chan P, Robaire B, Jacob RA, Greenwood CMT, Trasler JM. Stability of the human sperm DNA methylome to folic acid fortification and short-term supplementation. Hum Reprod 2016; 32:272-283. [PMID: 27994001 DOI: 10.1093/humrep/dew308] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 10/26/2016] [Accepted: 11/07/2016] [Indexed: 12/24/2022] Open
Abstract
STUDY QUESTION Do short-term and long-term exposures to low-dose folic acid supplementation alter DNA methylation in sperm? SUMMARY ANSWER No alterations in sperm DNA methylation patterns were found following the administration of low-dose folic acid supplements of 400 μg/day for 90 days (short-term exposure) or when pre-fortification of food with folic acid and post-fortification sperm samples (long-term exposure) were compared. WHAT IS KNOWN ALREADY Excess dietary folate may be detrimental to health and DNA methylation profiles due to folate's role in one-carbon metabolism and the formation of S-adenosyl methionine, the universal methyl donor. DNA methylation patterns are established in developing male germ cells and have been suggested to be affected by high-dose (5 mg/day) folic acid supplementation. STUDY DESIGN, SIZE, DURATION This is a control versus treatment study where genome-wide sperm DNA methylation patterns were examined prior to fortification of food (1996-1997) in men with no history of infertility at baseline and following 90-day exposure to placebo (n = 9) or supplement containing 400 μg folic acid/day (n = 10). Additionally, pre-fortification sperm DNA methylation profiles (n = 19) were compared with those of a group of post-fortification (post-2004) men (n = 8) who had been exposed for several years to dietary folic acid fortification. PARTICIPANTS/MATERIALS, SETTING, METHODS Blood and seminal plasma folate levels were measured in participants before and following the 90-day treatment with placebo or supplement. Sperm DNA methylation was assessed using the whole-genome and genome-wide techniques, MassArray epityper, restriction landmark genomic scanning, methyl-CpG immunoprecipitation and Illumina HumanMethylation450 Bead Array. MAIN RESULTS AND THE ROLE OF CHANCE Following treatment, supplemented individuals had significantly higher levels of blood and seminal plasma folates compared to placebo. Initial first-generation genome-wide analyses of sperm DNA methylation showed little evidence of changes when comparing pre- and post-treatment samples. With Illumina HumanMethylation450 BeadChip arrays, no significant changes were observed in individual probes following low-level supplementation; when compared with those of the post-fortification cohort, there were also few differences in methylation despite exposure to years of fortified foods. LARGE SCALE DATA Illumina HumanMethylation450 BeadChip data from this study have been submitted to the NCBI Gene Expression Omnibus under the accession number GSE89781. LIMITATIONS, REASONS FOR CAUTION This study was limited to the number of participants available in each cohort, in particular those who were not exposed to early (pre-1998) fortification of food with folic acid. While genome-wide DNA methylation was assessed with several techniques that targeted genic and CpG-rich regions, intergenic regions were less well interrogated. WIDER IMPLICATIONS OF THE FINDINGS Overall, our findings provide evidence that short-term exposure to low-dose folic acid supplements of 400 μg/day, over a period of 3 months, a duration of time that might occur during infertility treatments, has no major impact on the sperm DNA methylome. STUDY FUNDING/COMPETING INTERESTS This work was supported by a grant to J.M.T. from the Canadian Institutes of Health Research (CIHR: MOP-89944). The authors have no conflicts of interest to declare.
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Affiliation(s)
- D Chan
- Departments of Pediatrics and of Human Genetics of McGill University, Montreal Children's Hospital and Research Institute of the McGill University Health Centre, Glen Site, 1001 Décarie Boulevard Block E- Room EM0.2236 Montreal, QC H4A 3J1, Canada
| | - S McGraw
- Department of Obstetrics and Gynaecology, Biochemistry and Molecular Medicine of Université de Montréal, Research Center of the Sainte-Justine University Hospital, Montreal, QC H3T 1C5, Canada
| | - K Klein
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC H3T 1E2, Canada
| | - L M Wallock
- Department of Biological Sciences, Diablo Valley College, Pleasant Hill, CA 94523, USA
| | - C Konermann
- Department of Epigenomics and Cancer Risk Factors, German Cancer Research Center (DKFZ), Heidelberg 69120, Germany
| | - C Plass
- Department of Epigenomics and Cancer Risk Factors, German Cancer Research Center (DKFZ), Heidelberg 69120, Germany
| | - P Chan
- Royal Victoria Hospital of the McGill University Health Centre and Department of Surgery, McGill University, Montréal, QC H4A 3J1, Canada
| | - B Robaire
- Department of Pharmacology and Therapeutics, McGill University, Montréal, QC H3A 0G4, Canada
| | - R A Jacob
- USDA, Agricultural Research Service, Western Human Nutrition Research Center, Davis, CA 95616, USA
| | - C M T Greenwood
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC H3T 1E2, Canada.,Departments of Oncology, Epidemiology, Biostatistics and Occupational Health, and Human Genetics, McGill University, Montréal, QC H4A 3J1, Canada
| | - J M Trasler
- Departments of Pediatrics and of Human Genetics of McGill University, Montreal Children's Hospital and Research Institute of the McGill University Health Centre, Glen Site, 1001 Décarie Boulevard Block E- Room EM0.2236 Montreal, QC H4A 3J1, Canada .,Department of Pharmacology and Therapeutics, McGill University, Montréal, QC H3A 0G4, Canada
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97
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Daumler D, Chan P, Lo KC, Takefman J, Zelkowitz P. Men's knowledge of their own fertility: a population-based survey examining the awareness of factors that are associated with male infertility. Hum Reprod 2016; 31:2781-2790. [PMID: 27816924 DOI: 10.1093/humrep/dew265] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 09/22/2016] [Accepted: 09/28/2016] [Indexed: 01/12/2023] Open
Abstract
STUDY QUESTION How knowledgeable are men about the medical, environmental and psychological factors that are associated with male infertility? SUMMARY ANSWER Men, across most demographic groups, have limited knowledge of the various factors that are associated with male infertility. WHAT IS KNOWN ALREADY Few surveys have focused on men's knowledge of their own fertility. Studies of both men and women have found that men are comparatively less knowledgeable about issues of fertility and reproductive health. STUDY DESIGN, SIZE, DURATION A regionally representative sample of Canadian men completed a web-based survey of male fertility and reproductive health, over a 2-month period in 2015. PARTICIPANTS/MATERIALS, SETTING, METHODS Men, aged 18-50 years, were recruited for the study. There were 701 male participants, with a mean age of 34.1 years. Each participant was asked to identify factors associated with male infertility; fertility knowledge was assessed through two open-ended questions and a comprehensive list of risk factors and attendant health issues. MAIN RESULTS AND THE ROLE OF CHANCE Men were only able to identify 51% of the risk factors and 45% of the health issues associated with male infertility. Men were most aware of the modifiable risk factors for infertility (e.g. sexually transmitted infections, smoking cigarettes), relative to their knowledge of fixed risk factors (e.g. delayed puberty, size of testicles) and the attendant health issues (e.g. cardiovascular disease, diabetes). The overall level of fertility knowledge did not vary by most demographic characteristics (e.g. age, education, employment, income), though men from ethnic minority groups displayed moderately greater awareness. Additionally, younger men, those with lower incomes and those who had no desire to have future biological children were more likely to identify themselves as unaware of associations with infertility in the open-ended questions. Self-reported knowledge was significantly associated with higher overall knowledge scores. More than half of the sample expressed an interest in obtaining information about male fertility and reproductive health, with the majority of these men indicating that medical professionals and online sources were their preferred methods for receiving information. LIMITATIONS, REASONS FOR CAUTION Participants were self-selected and required to have Internet access in order to participate. This may affect the generalizability of results. WIDER IMPLICATIONS OF THE FINDINGS Previous studies of fertility knowledge have either omitted men from their samples or when men have been included, they were asked about general fertility or women's fertility. This is the first large-scale survey that focuses solely on men's knowledge of male fertility. Insight into the areas where men's knowledge may be lacking can inform strategies for disseminating fertility-related information and improving men's fertility awareness. Public health initiatives should tailor campaigns to educate men about the lesser known associations with male infertility, particularly those that are most prevalent and preventable through lifestyle modification. STUDY FUNDING/COMPETING INTERESTS The study was funded by a grant from CIHR TE1-138296. No competing interests.
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Affiliation(s)
- D Daumler
- Department of Psychiatry, Jewish General Hospital, McGill University, 4333 Côte-Sainte-Catherine Road, Montreal, QC H3T 1E4, Canada
| | - P Chan
- Department of Urology, McGill University Health Centre, McGill University, 1001 Décarie Boulevard, Montreal, QC H4A 3J1, Canada
| | - K C Lo
- Department of Urology, Mount Sinai Hospital, University of Toronto, 60 Murray Street, Toronto, ON M5G 1X5, Canada
| | - J Takefman
- McGill Reproductive Centre, McGill University Health Centre, McGill University, 888 de Maisonneuve Boulevard East, Suite 200, Montreal, QC H2L 4S8, Canada
| | - P Zelkowitz
- Department of Psychiatry, Jewish General Hospital, McGill University, 4333 Côte-Sainte-Catherine Road, Montreal, QC H3T 1E4, Canada .,Lady Davis Institute for Medical Research, Jewish General Hospital, McGill University, 3755 Côte-Sainte-Catherine Road, Montreal, QC H3T 1E2, Canada.,Department of Psychiatry, McGill University, Ludmer Research and Training Building, 1033 Pine Avenue West, Montreal, QC H3A 1A1, Canada
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98
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Miner S, Daumler D, Chan P, Lo K, Gupta A, Rosberger Z, Zelkowitz P. Stress, depression, and the desire for social support among male patients in fertility and cancer clinics. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.1080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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99
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Younes G, Gilman A, Tannus S, Son W, Chan P, Buckett W. Reproductive outcomes following surgical sperm retrieval in couples with obstructive azoospermia (OA), non-obstructive azoospermia (NOA) and repeated in vitro fertilization (IVF) failure. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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100
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Gilman A, Younes G, Tannus S, Son W, Chan P, Buckett W. Reproductive outcomes in poor-responder patients using surgically retrieved sperm. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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