Browsing NTNU Open by Author "Mai, Xiao-Mei"
Now showing items 1-20 of 59
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Adiposity and asthma in adults: a bidirectional Mendelian randomization analysis of the HUNT Study
Sun, Yi-Qian; Brumpton, Ben Michael; Langhammer, Arnulf; Chen, Yue; Kvaløy, Kirsti; Mai, Xiao-Mei (Journal article; Peer reviewed, 2019)Background We aimed to investigate the potential causal associations of adiposity with asthma overall, asthma by atopic status or by levels of symptom control in a large adult population and stratified by sex. We also ... -
Age at Menarche, age at Natural Menopause, and Risk of Lung and Colorectal Cancers: A Mendelian Randomization Study
Dénos, Marion Nicole Marie; Sun, Yi-Qian; Jiang, Lin; Brumpton, Ben Michael; Mai, Xiao-Mei (Peer reviewed; Journal article, 2023)Background: The roles of age at menarche and age at menopause in the etiology of lung and colorectal cancers are unclear. Objective: We aimed to investigate potential causal associations between age at menarche, age at ... -
Assessing the role of genome-wide DNA methylation between smoking and risk of lung cancer using repeated measurements: the HUNT Study
Sun, Yi-Qian; Richmond, Rebecca C.; Suderman, Matthew; Min, Josine L; Battram, Thomas; Flatberg, Arnar; Beisvag, Vidar; Nøst, Therese Haugdahl; Guida, Florence; Jiang, Lin; Wahl, Sissel Gyrid Freim; Langhammer, Arnulf; Skorpen, Frank; Walker, Rosie M; Bretherick, Andrew D; Zeng, Yanni; Chen, Yue; Johansson, Mattias; Sandanger, Torkjel M; Relton, Caroline L; Mai, Xiao-Mei (Peer reviewed; Journal article, 2021)Background: It is unclear if smoking-related DNA methylation represents a causal pathway between smoking and risk of lung cancer. We sought to identify novel smoking-related DNA methylation sites in blood, with repeated ... -
The association between clinically evaluated cognitive function and oral health in Norwegian older adults: The HUNT Study
Dénos, Marion Nicole Marie; Asante, Ernest Obeng; Eldholm, Rannveig Sakshaug; Selbæk, Geir; Skjellegrind, Håvard Kjesbu; Mai, Xiao-Mei; Yue, Chen; Sun, Yi-Qian (Journal article; Peer reviewed, 2024)Poor oral health and neurocognitive disorders (NCDs) are both important public health challenges in the general older population.1, 2 Older adults with NCDs may have poorer oral health due to decline in self-care, medication ... -
Association between vitamin D status and long-term changes of lipid profile in healthy and younger adults
Eikås, Jørgen (Master thesis, 2016)Background Dyslipidaemia is the condition of abnormal lipid levels and is considered a criterion in the pathogenesis of arteriosclerosis. Vitamin D is considered to be beneficial for overall health, however the prevalence ... -
Associations of serum 25-hydroxyvitamin D level with incidence of lung cancer and histologic types in Norwegian adults: a case-cohort analysis of the HUNT study
Sun, Yi-Qian; Langhammer, Arnulf; Wu, Chunsen; Skorpen, Frank; Chen, Yue; Nilsen, Tom Ivar Lund; Romundstad, Pål Richard; Mai, Xiao-Mei (Journal article, 2017)Background: Previous prospective studies have shown inconsistent associations between serum 25-hydroxyvitamin D [25(OH)D] level and lung cancer incidence. The aim of the present study was to explore the associations of ... -
Asthma and asthma symptom control in relation to incidence of lung cancer in the HUNT study
Jiang, Lin; Sun, Yi-Qian; Langhammer, Arnulf; Brumpton, Ben Michael; Chen, Yu; Nilsen, Tom Ivar Lund; Leivseth, Linda; Wahl, Sissel Gyrid Freim; Mai, Xiao-Mei (Peer reviewed; Journal article, 2021)Large prospective studies on asthma, especially asthma symptom control, as a potential risk factor for lung cancer are limited. We followed up 62,791 cancer-free Norwegian adults from 1995–1997 to 2017. Self-reported ... -
Body mass index and all cause mortality in HUNT and UK Biobank studies: linear and non-linear mendelian randomisation analyses
Sun, Yi-Qian; Burgess, Stephen; Staley, James R.; Wood, Angela M.; Bell, Steven; Kaptoge, Stephen; Guo, Qi; Bolton, Thomas R.; Mason, Amy M; Butterworth, Adam S.; Di Angelantonio, Emanuele; Vie, Gunnhild Åberge; Bjørngaard, Johan Håkon; Kinge, Jonas Minet; Chen, Yue; Mai, Xiao-Mei (Journal article; Peer reviewed, 2019)Objective To investigate the shape of the causal relation between body mass index (BMI) and mortality. Design Linear and non-linear mendelian randomisation analyses. Setting Nord-Trøndelag Health (HUNT) Study (Norway) ... -
Body mass index and incidence of lung cancer in the HUNT study: using observational and Mendelian randomization approaches
Jiang, Lin; Sun, Yi-Qian; Brumpton, Ben Michael; Langhammer, Arnulf; Chen, Yue; Mai, Xiao-Mei (Peer reviewed; Journal article, 2022)Background Traditional observational studies have shown an inverse association between body mass index (BMI) and lung cancer risk. Mendelian randomization (MR) analysis using genetic variants as instruments for BMI may ... -
Cardiovascular Exercise Intensity in Cancer Treatment: Impact on treatment efficiency in women with breast cancer
Grønlien, Emil Brække; Gustavsen, Anders Olsen; Opheim, Kristine Akselsen (Bachelor thesis, 2024)Hensikt: Hensikten med denne studien er å undersøke om ulike kardiovaskulære treningsintensiteter påvirker effektiviteten av kreftbehandlingen hos kvinner med bryst kreft. Metode: Dette litteraturstudiet er basert på ... -
Chronic obstructive pulmonary disease (COPD): Influence of comorbidities on health status, morbidity and mortality in a 25 years follow-up populationbased study. The HUNT Study.
Vikjord, Sigrid Anna Aalberg (Doctoral theses at NTNU;2020:254, Doctoral thesis, 2020) -
Cod liver oil intake and incidence of asthma in Norwegian adults-the HUNT study
Mai, Xiao-Mei; Langhammer, Arnulf; Chen, Yue; Camargo, Carlos Arthuro (Journal article; Peer reviewed, 2013)Background Cod liver oil is an important source of vitamin D, but also contains other fat-soluble components such as vitamin A. Before 1999, the cod liver oil formula in Norway contained a high concentration of vitamin A ... -
Comparison of pre‐ and post‐bronchodilator lung function as predictors of mortality: The HUNT Study
Bhatta, Laxmi; Leivseth, Linda; Carslake, David; Langhammer, Arnulf; Mai, Xiao-Mei; Chen, Yue; Henriksen, Anne Hildur; Brumpton, Ben Michael (Peer reviewed; Journal article, 2019)Background and objective Post‐bronchodilator (BD) lung function is recommended for the diagnosis of chronic obstructive pulmonary disease (COPD). However, often only pre‐BD lung function is used in clinical practice or ... -
Cross-Sectional and Prospective Cohort Study of Serum 25-Hydroxyvitamin D Level and Obesity in Adults
Mai, Xiao-Mei; Chen, Yue; Camargo, Carlos Arthuro; Langhammer, Arnulf (Journal article; Peer reviewed, 2012)Experimental studies suggest that vitamin D modulates the activity of adipocytes. The authors examined baseline serum 25-hydroxyvitamin D (25(OH)D) level in relation to prevalent and cumulative incident obesity in Norway. ... -
Determinants of vitamin D supplement use in Canadians
McCormack, Daniel; Mai, Xiao-Mei; Chen, Yue (Journal article; Peer reviewed, 2015)To determine the prevalence of vitamin D supplement use in Canadian adults and associations with demographic and socio-economic variables. Data from the Healthy Aging module of the Canadian Community Health Survey were ... -
Effect of strength training on bone health in healthy postmenopausal women
Five, Helene; Herrem, Synne (Bachelor thesis, 2022)Formål: Antallet beinbrudd relatert til osteoporose etter menopause blant kvinner i Skandinavia har doblet de siste 50 årene. Denne økningen i frakturer er høyere enn observert noe annet sted i verden. Siden det er allment ... -
Estimated cardiorespiratory fitness in relation to overall, breast and prostate cancer incidence: The Norwegian HUNT Study
Wang, Jin; Mai, Xiao-Mei; Sun, Yi-Qian (Peer reviewed; Journal article, 2022)Purpose To investigate the relationships between the estimated cardiorespiratory fitness (eCRF) and the incidence of overall, breast, and prostate cancer in a large prospective cohort study. Methods We included ... -
Factors associated with vitamin D deficiency in a Norwegian population: the HUNT Study
Larose, Tricia L; Chen, Yue; Camargo, Carlos Arthuro; Langhammer, Arnulf; Romundstad, Pål Richard; Mai, Xiao-Mei (Journal article; Peer reviewed, 2014)Vitamin D deficiency occurs worldwide. Winter season and high Body Mass Index (BMI) are associated with low levels of serum 25-hydroxyvitamin D (25(OH)D). We estimated the prevalence of vitamin D deficiency in a Norwegian ... -
General and abdominal obesity and incident asthma in adults: the HUNT study
Brumpton, Ben Michael; Langhammer, Arnulf; Romundstad, Pål Richard; Chen, Yue; Mai, Xiao-Mei (Journal article; Peer reviewed, 2013)Measures of body mass index (BMI) and waist circumference define general obesity and abdominal obesity respectively. While high BMI has been established as a risk factor for asthma in adults, waist circumference has seldom ... -
General physical activity recommendations in rehabilitation for improved physical function and quality of life in colorectal cancer survivors
Egeland, Anthony; Solheim, Sivert; Hagen, Ådne (Bachelor thesis, 2023)Bakgrunn: Formålet med denne studien er å undersøke effektene av fysisk aktivitet på livskvalitet (eng: quality of life) og fysisk funksjon (eng: physical functioning) hos kolorektal kreft-overlevende (eng: CRC survivors) ...