Juma Orach

ORCID: 0000-0002-9676-7921
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About
Contact & Profiles
Research Areas
  • Air Quality and Health Impacts
  • Energy and Environment Impacts
  • Air Quality Monitoring and Forecasting
  • Noise Effects and Management
  • Neuroscience of respiration and sleep
  • Obstructive Sleep Apnea Research
  • Workplace Health and Well-being
  • Health and Lifestyle Studies
  • Cardiac Health and Mental Health
  • Climate Change and Health Impacts
  • Indoor Air Quality and Microbial Exposure
  • Health, Environment, Cognitive Aging
  • Vehicle emissions and performance
  • Chronic Obstructive Pulmonary Disease (COPD) Research
  • Epigenetics and DNA Methylation

University of British Columbia
2020-2025

Vancouver Coastal Health
2021-2023

Vancouver Coastal Health Research Institute
2021-2023

Background Adherence to self-care behaviors can prevent or delay adverse outcomes associated with cardiovascular disease (CVD). Sex and socioculturally constructed gender might impact individuals' ability adhere healthy lifestyles. Objective The aim of this study was systematically identify, evaluate, synthesize the literature on influence sex adherence for CVD risk management in global context. Methods We searched MEDLINE, EMBASE, CINAHL, Scopus, Web Science, Global Health Databases...

10.1097/jcn.0000000000001173 article EN The Journal of Cardiovascular Nursing 2025-01-10

Rationale: There is growing evidence that chronic obstructive pulmonary disease (COPD) can be caused and exacerbated by air pollution exposure. Objectives: To document the impact of short-term exposure on inflammation markers, proteases, antiproteases in lower airways older adults with without COPD. Methods: Thirty participants (10 ex-smokers mild to moderate COPD 20 healthy [9 11 never-smokers]), an average age 60 years, completed this double-blinded, controlled, human crossover study. Each...

10.1164/rccm.202104-1079oc article EN American Journal of Respiratory and Critical Care Medicine 2022-02-25

Summary We assessed the relation between air pollution, weather, and adherence to positive airway pressure (PAP) therapy in a retrospective community‐based repeated‐measures study of adults with obstructive sleep apnea who purchased PAP devices from registered provider 2013 2017 (Ottawa, Ontario, Canada) had at least one day data. Daily PAP‐derived data, weather databases were linked using postal code. The exposures mean nocturnal (8:00 p.m. 8:00 a.m.) (i) residential concentrations nitrogen...

10.1111/jsr.14183 article EN cc-by-nc-nd Journal of Sleep Research 2024-03-04

Rationale: Air pollution exposure is harmful to human airways, and its impacts are best studied using concentration–response relationships. However, most research on airway health has investigated chronic exposures, with less being known about acute effects, which can be robustly controlled exposures. Objectives: To investigate the concentration relationship between measures diesel exhaust (DE). Methods: We conducted a double-blind crossover study 17 healthy nonsmokers exposed filtered air...

10.1513/annalsats.202209-762oc article EN Annals of the American Thoracic Society 2023-03-17

Abstract Background Traffic-related air pollution (TRAP) exposure causes adverse effects on wellbeing and quality of life, which can be studied non-invasively using self-reported symptoms. However, little is known about the different TRAP concentrations symptoms following controlled exposures, where acute responses with limited confounding. We investigated concentration–response relationship between diesel exhaust (DE) exposure, as a model TRAP, Methods recruited 17 healthy non-smokers into...

10.1186/s12989-022-00506-6 article EN cc-by Particle and Fibre Toxicology 2022-11-23

<b>Background:</b> Traffic-related air pollution (TRAP) is a major risk factor of chronic respiratory and cardiovascular disease. Although severity prevalence these diseases vary in females males, sex-related differences TRAP-mediated protein changes remains unknown. <b>Objective:</b> To examine plasma profile response to low, real-world concentrations diesel exhaust (DE), paradigm TRAP. <b>Methods:</b> We used randomized crossover human controlled exposure study. Male female (n=5 each)...

10.1183/13993003.congress-2022.4331 article EN 03.02 - Airway cell biology and immunopathology 2022-09-04
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