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Our Staff
Scientific Director:
Jerilynn C. Prior, MD, FRCPC
Research Associate:
Christine L. Hitchcock, PhD
Post Doctoral Fellow:
Shirin Kalyan, PhD
CaMOS Co-ordinator:
Yvette Vigna, BA
CaMOS Interviewers:
Pauline Hung
Mary Lim
Tennie Ho
Administrative Assistant:
Bonnie Thompson
Volunteers:
Caroline Wilson
Tia Strachan
Jerilynn C. Prior BA, MD, FRCPC
Jerilynn C. Prior BA, MD, FRCPC, ABIM, ABEM is a Professor of Endocrinology and Metabolism at the University of British Columbia in Vancouver, B.C.
She has a special interest in menstrual cycles and the effects of hormones on women's health. Dr. Prior has studied women's menstrual cycles, perimenopause and the causes for and treatment of osteoporosis. She has researched the use of the ovarian hormone progesterone for treatment of menstrual flow problems, perimenopause, hot flushes, and low bone density. She is Director of the BC Centre of the Canadian Multicentre Osteoporosis Study (CaMOS) that is studying osteoporosis, fractures and bone density and has followed over 9000 adult women and men across the country for over ten years, plus over 1000 youth ages 16-24 for three years. She is the founder and Scientific Director of the Centre for Menstrual Cycle and Ovulation Research (CeMCOR). CeMCOR is actively researching menstrual cycles & ovulation and has a very accessible, informative website that receives over 1,200 page views per day (www.cemcor.ubc.ca).
Dr. Prior is internationally known for her research showing that progesterone increases bone formation by stimulating osteoblasts. More recently, she has shown that estrogen levels, besides being unpredictable, are significantly higher than normal in the perimenopause, the three to ten years of changes before menopause. She is widely sought as a speaker for professional and lay audiences and is the author of the award-winning book Estrogen’s Storm Season: Stories of Perimenopause, an informative book about perimenopause told in a story format. Estrogen's Storm Season was a finalist in the 2006 Independent Publishers Book Awards for Health. She is also the author, with two others, of a handbook called Transitions Through the Perimenopausal Years. With Susan Baxter PhD, medical journalist, Prior is author of Estrogen Errors - Why Progesterone Is Better For Women's Health. This book aims to inform women of the decades of presumption and prejudice behind estrogen-centric women's health dogma. She has over 200 publications and holds 6 patents. She is the recipient of numerous awards including the University of British Columbia Faculty of Medicine Distinguished Medical Research Lecturer Award (2002). Dr. Prior is currently serving as President of the Society for Menstrual Cycle Research.
Dr. Prior grew up in Alaska where she completed grade school and high school. Using scholarships, she received a Bachelors of Arts in English Literature at Linfield College, Oregon (with honours) in 1965. She graduated from Boston University School of Medicine (with honours) in 1969. She began her training in Internal Medicine in Boston. Dr. Prior has previously worked as a physician in Boston, Mass., Poughkeepsie and Syracuse NY, and Barrow and Fairbanks, Alaska. She moved to Canada in 1976 and became a citizen because she believes in the Canadian universal health care system.
Dr. Prior has been singing with the Vancouver Bach Choir for 30 years, walks and kayaks for relaxation and health and loves to read. Her daughter is a high school English teacher in Vancouver and a singer. Her son also lives and works in the Vancouver area. In 2008 she became a proud grandmother.
Christine L. Hitchcock, PhD
Christine Hitchcock (BSc (Hon) Mathematics, 1986, MA Psychology, 1987, PhD Psychology, 1992) has worked as a Research Associate with CeMCOR since it was founded. She brings statistical and mathematical modelling skills; in her early career she trained as a post-doc at Oxford, and then worked as an ecological modeller for the Canadian government. Her current research interests include the analysis of normal changes with menstrual cycles and ovulation in regularly menstruating women, hot flushes and other changes in perimenopausal women, and the effects of progesterone on hot flushes and cardiovascular health in menopausal women. Most recently she has been reviewing the safety of extended use of oral contraceptives to suppress menstruation.
Shirin Kalyan, PhD
Dr. Shirin Kalyan graduated from the University of British Columbia with a major in Immunology and Microbiology and a Minor in Arts focused on Psychology. She obtained her doctorate with the Department of Experimental Medicine for which she had been awarded senior scholarships from both the Canadian Institute of Health Research as well as the Michael Smith Foundation. Dr. Kalyan is interested in studying the role of gender in both health and disease progression — with a special interest in the context of stress and the immune system. Apart from women’s health research, Shirin is a fervid environmentalist and public policy advocate and is a current member of the Union of Concerned Scientists.
Yvette Vigna, BA
After getting a BA in Psychology in 1974 from UBC, Yvette decided to go into nursing. In 1976 she obtained her diploma in psychiatric nursing and in 1978, a diploma in nursing from the BC Institute of Technology. In 1990 she began working with Dr. Prior on various of her research studies as a research technician. In 1995 Yvette became the coordinator of the CaMOS study and has been working in this challenging position since then.
We Rely On Your Support
If you find these materials helpful, and if you are able, please consider making a donation to cover our costs and support the research and education objectives of the Centre for Menstrual Cycle and Ovulation Research.

