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Ivy Cheung Mason, Ph.D.

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University of Pennsylvania, Philadelphia, PA, USAB.A.05/2010Biological Basis of Behavior
Northwestern University, Chicago, IL, USAPh.D.12/2015Neuroscience
Fall - 2019
Certificate of Distinction in Teaching – Gen Ed 1038; Harvard College
Spri - 2019
Certificate of Distinction in Teaching – MCB 186; Harvard College
Young Investigator Research Forum Scholarship; American Academy of Sleep Medicine
2018 - 2019
Postdoctoral trainee, National Institutes of Health Training Grant; Harvard Medical School
Trainee Merit Award; Sleep Research Society
2016 - 2018
Postdoctoral trainee, National Institutes of Health Training Grant; Northwestern University
Interdepartmental Neuroscience Travel Award; Northwestern University
Trainee Merit Award; Sleep Research Society
Poster Presentation Winner; Gordon Conference: Pineal Biology - Circadian Clocks, Sleep, Metabolism
2010 - 2013
Doctoral trainee, National Institutes of Health Training Grant; Northwestern University
Graduate Research Fellowship Honorable Mention; National Science Foundation
2008 - 2010
Dean's List; University of Pennsylvania
Valedictorian; Santa Cruz High School

Dr. Ivy Mason is a Postdoctoral Research Fellow at Harvard Medical School in the Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, at Brigham and Women's Hospital. She is training under Dr. Frank A.J.L. Scheer in the Medical Chronobiology Program.

Postdoctoral project:
Obesity is a major public health concern and is related to cardiovascular diseases and metabolic syndrome. Bariatric surgery is the most effective obesity treatment with long-term cardiometabolic benefits, of which sleeve gastrectomy (SG) is the most common procedure. SG is thought to work by affecting neuro-hormonal pathways regulating appetite, energy homeostasis, and glucose metabolism. While excess weight loss after SG averages 50-60%, inter-individual differences in weight loss are large with approximately 25% of SG patients considered poor weight-loss responders. The mechanisms underlying this variation remain unknown and interventions to improve these outcomes are critically lacking. Of interest, a substantial proportion of SG candidates show altered daily patterns of food intake, raising the question whether such differences in meal-timing contribute to these inter-individual differences in weight loss success. Indeed, research has indicated that meal-timing per se, independent of total calorie intake, plays a role in the effectiveness of dietary and bariatric interventions. The main hypothesis of the proposed research is that improvements in daily meal-timing patterns will enhance the beneficial effects of SG. To test this, Dr. Mason will determine whether: 1) meal-timing pattern associates with SG success; 2) daily patterns in neuroendocrine factors involved in weight regulation differ between good and poor weight loss responders, and; 3) imposing a field-based meal-timing intervention in poor weight loss responders enhances benefits of SG using a randomized controlled trial and in-laboratory assessments. Considering effects of excess weight loss in these patients, improving SG outcomes with meal-timing may help prevent and/or treat cardiovascular disease in this population.

- Spring 2019 - Teaching Fellow (with Course Instructors Charles A. Czeisler and Frank A.J.L. Scheer), MCB 186, Sleep and Circadian Clocks: from Biology to Public Health, Harvard College, Cambridge, MA
- Fall 2019 - Teaching Fellow (with Course Instructors Charles A. Czeisler and Frank A.J.L. Scheer), Gen Ed 1038, Sleep, Harvard College, Cambridge, MA

Society Memberships:
- Sleep Research Society
- National Postdoctoral Association
- American Heart Association

The research activities and funding listed below are automatically derived from NIH ExPORTER and other sources, which might result in incorrect or missing items. Faculty can login to make corrections and additions.
  1. 19POST34380188 (Ivy Mason, Ph.D.) Jan 1, 2019 - Jun 30, 2021
    American Heart Association
    Role of Dietary Habits in Weight Loss Efficacy after Bariatric Surgery
    Role Description: This fellowship supports Ivy Mason's postdoctoral training during her work on Dr. Frank A.J.L. Scheer's project on the role of dietary habits in weight loss efficacy of bariatric surgery, which is funded by the National Institutes of Health (R01HL14057401).
    Role: Principal Investigator

Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
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PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
  1. Mason IC, Qian J, Adler GK, Scheer FAJL. Impact of circadian disruption on glucose metabolism: implications for type 2 diabetes. Diabetologia. 2020 03; 63(3):462-472. PMID: 31915891.
  2. Mason IC, Boubekri M, Figueiro MG, Hasler BP, Hattar S, Hill SM, Nelson RJ, Sharkey KM, Wright KP, Boyd WA, Brown MK, Laposky AD, Twery MJ, Zee PC. Circadian Health and Light: A Report on the National Heart, Lung, and Blood Institute's Workshop. J Biol Rhythms. 2018 10; 33(5):451-457. PMID: 30033850.
    Citations:    Fields:    
  3. Baron KG, Duffecy J, Berendsen MA, Cheung Mason I, Lattie EG, Manalo NC. Feeling validated yet? A scoping review of the use of consumer-targeted wearable and mobile technology to measure and improve sleep. Sleep Med Rev. 2018 08; 40:151-159. PMID: 29395985.
    Citations: 1     Fields:    Translation:Humans
  4. Cheung IN, Zee PC, Shalman D, Malkani RG, Kang J, Reid KJ. Morning and Evening Blue-Enriched Light Exposure Alters Metabolic Function in Normal Weight Adults. PLoS One. 2016; 11(5):e0155601. PMID: 27191727.
    Citations: 4     Fields:    Translation:HumansPHPublic Health
  5. Boubekri M, Cheung IN, Reid KJ, Wang CH, Zee PC. Impact of windows and daylight exposure on overall health and sleep quality of office workers: a case-control pilot study. J Clin Sleep Med. 2014 Jun 15; 10(6):603-11. PMID: 24932139.
    Citations: 8     Fields:    Translation:Humans
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Funded by the NIH National Center for Advancing Translational Sciences through its Clinical and Translational Science Awards Program, grant number UL1TR002541.