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Lujan, Marla E.
Cornell Faculty Member
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Positions
- Assistant Professor, Division of Nutritional Sciences (DNS), College of Agriculture and Life Sciences (CALS)
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advisory group member
Research
research activities
Publications
individual publications
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academic article
- Development of morphologically dominant follicles is associated with fewer metabolic disturbances in amenorrheic women with polycystic ovary syndrome. Ultrasound in Obstetrics and Gynaecology. 36:759-66. 2010
- Digit ratios by computer-assisted analysis confirm lack of anatomical evidence of prenatal androgen exposure in clinical phenotypes of polycystic ovary syndrome. Reproductive Biology and Endocrinology. 8:156. 2010
- Digit ratios do not serve as anatomical evidence of prenatal androgen exposure in clinical phenotypes of polycystic ovary syndrome. Human Reproduction. 25:204-211. 2010
- Grid analysis improves reliability in follicle counts made by ultrasonography in women with polycystic ovary syndrome. Ultrasound in Medicine and Biology. 36:712-8. 2010
- Women's perceptions of polycystic ovary syndrome following participation in a clinical research study: implications for knowledge, feelings, and daily health practices.. Journal of Obstetrics & Gynaecology Canada. 32:453-9. 2010
- Assessment of ultrasonographic features of polycystic ovaries is associated with modest levels of inter-observer agreement. Journal of Ovarian Research. 2:6. 2009
- Digit ratios determined by computer-assisted analysis are more reliable than those using physical measurements, photocopies, and printed scans. American Journal of Human Biology. 21:365-70. 2009
- Imaging ovarian follicles and corpora lutea in the mouse using ultrasound biomicroscopy: a validation study. Reproduction, Fertility & Development. 21:579-86. 2009
- Diagnostic criteria for polycystic ovary syndrome: pitfalls and controversies. Journal of Obstetrics & Gynaecology Canada. 30:671-9. 2008
- Improving interobserver variability in the evaluation of ultrasonographic features of polycystic ovaries. Reproductive Biology and Endocrinology. 6:30. 2008
- Metabolic Fuel and Clinical Implications for Female Reproduction. Journal of Obstetrics and Gynaecology Canada. 29:887-902. 2007
- Developing a model of nutritional amenorrhea in rhesus monkeys. Endocrinology. 147:483-92. 2006
- Effect of fasting on cocaine-amphetamine-regulated transcript, neuropeptide Y, and leptin receptor expression in the nonhuman primate hypothalamus. Neuroendocrinology. 84:83-93. 2006
- Effect of leptin administration on ovulation in food-restricted rhesus monkeys. Neuroendocrinology. 84:103-14. 2006
- Caloric restriction inhibits steroid-induced gonadotropin surges in ovariectomized rhesus monkeys. Endocrine. 27:25-31. 2005
- Hypoglycemia does not affect gonadotrope responsiveness to gonadotropin-releasing hormone in rhesus monkeys. Endocrine. 21:109-14. 2003
- Estrogen-induced gonadotropin surge in rhesus monkeys is not inhibited by cortisol synthesis inhibition or hypoglycemia. Endocrine. 19:169-176. 2002
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conference paper
- Longitudinal characterization of follicle populations in women with PCOS. Proceedings of the College of Agriculture and Life Sciences Research Honor’s Thesis Program. 2011
- An evaluation of intra- and inter-observer agreement of digit ratios measured by direct, scanned, and photocopied images. 15th Annual Life & Health Sciences Research Conference, University of Saskatchewan, Saskatoon, Saskatchewan, Canada. 63. 2008
- An evaluation of the phenotypic spectrum of 100 consecutive women presenting with polycystic ovary syndrome. Proceeding of the 54th Annual Meeting of the Canadian Fertility & Andrology Society, Calgary, Alberta, Canada. 33. 2008
- Digit ratios as anatomical evidence of prenatal androgen exposure in women with polycystic ovary syndrome. Proceeding of the 54th Annual Meeting of the Canadian Fertility & Andrology Society, Calgary, Alberta, Canada. 65. 2008
- Do follicle populations change in amenorrheic women with polycystic ovary syndrome? . Proceedings of the 90th Annual Meeting of the Endocrine Society, San Francisco, California, USA. 2008
- Knowledge, feelings and daily health practices of women living with polycystic ovary syndrome. The 15th Annual Life & Health Sciences Research Conference, University of Saskatchewan, Saskatoon, Saskatchewan, Canada. 79. 2008
- Limitation of first trimester ultrasonography for prediction of gestational age: using known ovulation dates versus last menstrual period prediction of conception. Proceeding of the Society of Obstetricians and Gynaecologists of Canada 2008 Annual Clinical Meeting, Calgary, Alberta, Canada. 2008
- Ultrasonographic image attributes of polycystic ovaries relate to degree of symptomology in polycystic ovary syndrome. Proceeding of the 54th Annual Meeting of the Canadian Fertility & Andrology Society, Calgary, Alberta, Canada. 34. 2008
- Ultrasonographic measurements of first trimester gestational age differ when dating from ovulation versus last menstrual period. Proceedings of the Reproductive Science & Medicine Research Symposium, University of Saskatchewan, Saskatoon, Saskatchewan, Canada. 17. 2008
- Volunteering in a clinical study changes knowledge, feelings and daily health practices of women living with polycystic ovary syndrome. Proceeding of the Society of Obstetricians and Gynaecologists of Canada 2008 Annual Clinical Meeting, Calgary, Alberta, Canada. 2008
- Improving interobserver variability in the identification and quantification of ultrasonographic features of polycystic ovaries. Proceedings of the 53rd Annual Meeting of the Canadian Fertility & Andrology Society, Halifax, Nova Scotia, Canada. 112. 2007
- Improving interobserver variability in the identification and quantification of ultrasonographic features of polycystic ovaries: role of image quality and follicle population. Proceedings of the 5th Annual Meeting Androgen Excess Society, Toronto, Ontario, Canada. 34. 2007
- Inter-observer variability in the identification and quantification of ultrasonographic features of polycystic ovaries. P4-190. 2007
- Inter-observer variability in the identification and quantification of ultrasonographic features of polycystic ovaries. Proceedings of the Annual Research Day of the Department of Radiology & Diagnostic Imaging, University of Alberta, Edmonton, Alberta. 19. 2007
- Radiologists and reproductive endocrinologists differ in their evaluation of ultrasonographic features of polycystic ovaries. Proceeding of the 70th Annual Scientific Meeting of the Canadian Association of Radiologists, St. John’s, Newfoundland, Canada. 32. 2007
- Developing a model of nutritional amenorrhea: can chronic dietary restriction inhibit ovulation in rhesus monkeys. Proceedings of the Reproductive Science & Medicine Research Conference, University of Saskatchewan, Saskatoon, Saskatchewan, Canada. 8. 2006
- Endocrine responses in monkeys with anovulation induced by chronic dietary restriction: effect of leptin administration. Proceedings of the 13th Annual Life & Health Sciences Research Conference, University of Saskatchewan, Saskatoon, Saskatchewan, Canada. 2006
- Evaluation of the inter-observer variability of the ultrasound diagnosis of polycystic ovaries. Proceeding of the Annual Research Day of the Academic Department of Medical Imaging, University of Saskatchewan. 13. 2006
- Ultrasonographic characterization of follicle and luteal dynamics during the menstrual cycle in rhesus monkeys. No. 271. 2006
- Fasting-induced changes in hypothalamic neuropeptide Y and cocaine amphetamine regulated transcript gene expression in rhesus monkeys. P710. 2005
- The effect of acute fasting on expression of NPY, CART and Ob-R in the hypothalamus of female rhesus monkeys. 014. 2005
- Three-dimensional ultrasonography and morphometry for the clinical evaluation of polycystic ovarian syndrome: assessment of aberrant folliculogenesis and metabolic correlates. Proceedings of the Saskatchewan Health Research Foundation Sante Awards, Saskatoon, Saskatchewan, Canada. 2005
- Caloric restriction affects the positive feedback response to estrogen and progesterone in non-human primates. O20. 2004
- Caloric restriction inhibits steroid-induced gonadotropin surges in ovariectomized rhesus monkeys. PT34. 2004
- Caloric restriction inhibits steroid-induced gonadotropin surges in ovariectomized rhesus monkeys. Proceedings of the 32nd Annual Southern Ontario Reproductive Biology Workshop, Toronto, Ontario, Canada. 2004
- Endocrine responses to caloric restriction in the non-human primate: effect of leptin administration and re-alimentation. P1-215. 2004
- Endocrine responses to caloric restriction in the non-human primate: effect of leptin administration and re-alimentation. P66. 2004
- Endocrine responses to caloric restriction in the non-human primate: effect of leptin administration and re-alimentation. P24. 2004
- Endocrine responses to caloric restriction in the non-human primate: effect of leptin administration and re-alimentation. O19. 2004
- Increased cortisol is not critical for anovulation induced by caloric restriction in rhesus monkeys. PT35. 2004
- Effect of caloric restriction on ovulation in rhesus monkeys: potential role for leptin. O6. 2003
- Effect of caloric restriction on ovulation in rhesus monkeys: potential role for leptin. O13. 2003
- Effect of calorie restriction on ovulation in rhesus monkeys: potential role for leptin. P1-701. 2003
- Gene expression of orexigenic and anoerexigenic neuropeptides in the nonhuman primate brain. P7. 2003
- Neuroendocrine responses to caloric restriction in the non-human primate: effect of leptin administration.. TP10. 2003
- Ovarian steroid effects on hypoglycemia-induced neuropeptide Y gene expression following a metabolic challenge in the non-human primate. OP006. 2002
- Ovarian steroid effects on hypoglycemia-induced neuropeptide Y gene expression in the non-human primate. P1-171. 2002
- Ovarian steroid effects on hypoglycemia-induced neuropeptide Y gene expression in the non-human primate. Proceedings of the 5th Annual Meeting for Basic & Clinical Research Trainees in the Faculty of Health Sciences, Queen's University, Kingston, Ontario, Canada. 2002
- The effect of leptin replacement on ovulation in rhesus monkeys. TO4. 2002
- Ovarian steroid effects on hypoglycemia-induced neuropeptide y gene expression in the non-human primate. O7. 2001
- The effects of stimulating corticotropin-releasing hormone on the estrogen-induced gonadotropin surge in rhesus monkeys. O3. 2001
- The effects of stimulating corticotropin-releasing hormone on the estrogen-induced lutenizing hormone surge in rhesus monkeys. P1-301. 2000
- The effects of stimulating corticotropin-releasing hormone on the estrogen-induced lutenizing hormone surge in rhesus monkeys. Proceedings of the 3rd Annual Meeting for Basic & Clinical Research Trainees in the Faculty of Health Sciences, Queen's University, Kingston, Ontario, Canada. 2000
- The effects of stimulating corticotropin-releasing hormone on the estrogen-induced lutenizing hormone surge in rhesus monkeys. Proceedings of the JA Low Research Day, Annual Meeting of the Department of Obstetrics & Gynaecology, Queen's College, Kingston, Ontario, Canada. 2000
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conference poster
- An exaggerated insulin response to glucose challenge in PCOS: predicting risk for diabetes mellitus 2011
- Circulating adiponectin levels vary in clinical phenotypes of polycystic ovary syndrome 2011
- Circulating and cellular adiponectin profiles in women with polycystic ovary syndrome 2011
- Differential expression of adiponectin in women with clinical phenotypes of polycystic ovary syndrome 2011
- Longitudinal characterization of follicle populations in women with polycystic ovary syndrome by 2- and 3- dimensional ultrasonography 2011
- Near-infrared fluorescence for the quantification of visfatin in human serum: association with clinical markers of metabolism in women 2011
- Quantification of oligomeric forms of adiponectin using near-infrared fluorescence 2011
- Revisiting ultrasonographic criteria for polycystic ovarian morphology: new thresholds for elevated follicle population. 2-231. 2011
- Validated criteria for the ultrasonographic detection of polycystic ovarian morphology: new thresholds for elevated follicle population and ovarian volume 2011
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document part
- An exaggerated insulin response to glucose challenge in PCOS: predicting risk for diabetes mellitus 2011
- Automated 3D-ultrasonography for the characterization of follicle populations in women with polycystic ovary syndrome 2011
- Circulating adiponectin levels vary in clinical phenotypes of polycystic ovary syndrome. 4255. 2011
- Circulating and cellular adiponectin profiles in women with polycystic ovary syndrome 2011
- Differential expression of adiponectin in women with clinical phenotypes of polycystic ovary syndrome. 5974. 2011
- Longitudinal characterization of follicle populations in women with polycystic ovary syndrome by 2- and 3- dimensional ultrasonography 2011
- Near-infrared fluorescence for the quantification of visfatin in human serum: association with clinical markers of metabolism in women. 3653. 2011
- Quantification of oligomeric forms of adiponectin using near-infrared fluorescence. 6484. 2011
- Revisiting ultrasonographic criteria for polycystic ovarian morphology: new thresholds for elevated follicle population. 2-231. 2011
- Validated criteria for the ultrasonographic detection of polycystic ovarian morphology: new thresholds for elevated follicle population and ovarian volume 2011
presentations
featured in archived article
Teaching
teaching activities
- ANSC-6190: Field of Nutrition Seminar - Spring 2013
- NS-3420: Human Anatomy and Physiology Laboratory - Spring 2013
- NS-4030: Teaching Apprenticeship - Spring 2013
- NS-6190: Field of Nutrition Seminar - Spring 2013
- ANSC-6190: Field of Nutrition Seminar - Fall 2012
- NS-6190: Field of Nutrition Seminar - Fall 2012
- NS-9990: Doctoral Thesis and Research - Fall 2012
- ANSC-6190: Field of Nutrition Seminar - Spring 2012
- NS-3420: Human Anatomy and Physiology Laboratory - Spring 2012
- NS-6190: Field of Nutrition Seminar - Spring 2012
- ANSC-6190: Field of Nutrition Seminar - Fall 2011
- NS-4000: Directed Readings - Fall 2011
- NS-4020: Supervised Fieldwork - Fall 2011
- NS-6190: Field of Nutrition Seminar - Fall 2011
- NS-9990: Doctoral Thesis - Fall 2011
recent courses taught
Service
current professional activities
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- Member, Cornell Graduate Field of Nutrition
- Member, Cornell Graduate Field of Molecular and Integrative Physiology
- Member, The Endocrine Society
- Member, Androgen Excess and PCOS Society
- Member, American Society for Reproductive Medicine
- Member, Canadian Fertility and Andrology Society
service to the profession
- Androgen Excess and PCOS Society (AEPCOS) Member 2006 -
- Canadian Fertility and Andrology Society (CFAS) Member 2002 -
- The Endocrine Society Member 2000 -
- Annual Departmental Research Day, Awards Committee, Obstetrics, Gynecology & Reproductive Sciences, University of Saskatchewan Committee Member 2006 - 2008
- Reproductive Sciences and Medicine Seminar Series, Reproductive Sciences and Medicine Research Group, University of Saskatchewan Committee Member 2005 - 2008
- Office and Research Space Allocation Committee, Department of Physiology, Queen's University Committee Member 2003 - 2004
- Department of Physiology, Queen's University Graduate Student Departmental Representative 2002 - 2004
- Physiology Seminar Series, Invited Speaker Selection Process, Physiology Graduate Student Association Chairperson 2002 - 2004
reviewer or editor for
Background
education and training
- Ph.D. in Physiology, Queen’s University 2004
- M.S. in Physiology, Queen's University 2001
- B.S. in Life Sciences, Queen's University 1998
awards and honors
- Student/Resident Best Abstract Award and ESHRE Nurses Exchange Award, 2008
- Canadian Institutes of Health Research Fellowship Award, 2008
- Strategic Training Initiative in Research in Reproductive Health Sciences (STIRRHS) Postdoctoral Fellowship Award, 2008
- Nominated to the Best of Four Competition, 2008
- Best Clinical Paper Award, 2007
- Nominated to the Resident Award Competition Session, 2007
- Canadian Institutes of Health Research (CIHR) Travel Award, 2007
- The Endocrine Society Travel Grant Award, 2007
- Jack Miller Research Award for Best Resident Project, 2007
- Best Reproductive Biology Poster, 2006
- Most read article in Endocrinology for August 2006, Developing a model of nutritional amenorrhea in rhesus monkeys. Endocrinology 2006; 147(1):483-92, 2006
- Saskatchewan Health Research Foundation Postdoctoral Fellowship Award ($90 000), 2005
- Best Scientific Poster, 2004
- Best Scientific Paper, 2004
- Ontario Graduate Scholarship in Science & Technology, 2003
- Organon Best Student/Resident Paper Award, 2003
- Best Scientific Paper, 2003
- R. Samuel McLaughlin Graduate Fellowship, 2002
- Queen’s Graduate Award, 2002
- Honourable Mention, 2002
- Best Scientific Paper, 2002
- Queen’s Graduate Award, 2001
- Queen’s Doctoral Field Travel Award, 2001
- Best Scientific Paper, 2001
- Queen’s Graduate Award, 2000
- Best Scientific Paper
Other
college
- CALS
name suffix
- PhD