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Men and Osteoporosis

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The Faces of Osteoporosis

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Medical & Scientific Advisory Board

Bruce Ettinger

Bruce Ettinger, MD

After graduating cum laude from Harvard Medical School, Dr. Ettinger completed his medical residency on the Harvard service of the Boston City Hospital. He then served a fellowship in Endocrinology and Metabolism at the Metabolic Research Unit of the University of California, San Francisco. He has spent 30 years practicing endocrinology and internal medicine. He is past President of the North American Menopause Society. Dr. Ettinger has authored or co-authored over 137 peer-reviewed scientific publications, and has written numerous book chapters. Dr. Ettinger's current research interests include: osteoporosis, kidney stones and calcium metabolism, estrogens and other female hormone therapies, menopause, and pharmaco-epidemiology.


Shirin Hooshmand, PhD

Shirin Hooshmand, PhD, is Associate Professor of Nutrition at the School of Exercise and Nutritional Sciences at San Diego State University. She received her PhD and completed her post-doctoral training at Florida State University working in the area of nutrition, bone, and cartilage. Her current research interests include bone and calcium metabolism, osteoporosis and osteoarthritis, and functional foods. She has published 32 original articles in peer reviewed journals and presented more than 60 abstracts in national and international symposiums. Dr. Hooshmand’s current research focuses on the role of both natural and synthetic compounds in prevention and/or treatment of osteoporosis and osteoarthritis.


Risa Kagan, MD, CCD

Dr. Kagan is a board certified obstetrician-gynecologist, graduate of New York University and the Albany Medical College of Union University.  She completed her internship-residency at the University of California San Francisco in 1982. Dr. Kagan is Clinical Professor, Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco. She is a North American Menopause Society (NAMS) certified Menopause Practitioner and is certified by the International Society of Clinical Densitometry (CCD). She specializes in gynecology with particular focus on gynecologic surgery and women's health issues. She serves on national committees developing standards for menopause and osteoporosis care and is actively involved in several professional organizations including the North American Menopause Society, where she serves as a member of the NAMS Board of Trustees. Dr. Kagan has been recognized for many years as one of the Bay Area's best physicians.

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David Karpf, MD, President, Medical and Scientific Advisory

Dr. Karpf is an adjunct clinical professor of endocrinology at Stanford University School of Medicine, where he sees patients with osteoporosis and metabolic bone disease. He is board certified in internal medicine with a subspecialty in endocrinology and metabolism. A UC Berkeley graduate, Dr. Karpf received his medical degree from UC San Diego and completed residency in internal medicine and fellowship in endocrinology, diabetes and metabolism at UCLA/Cedars-Sinai Medical Center. This was followed by a fellowship in metabolic bone disease in the endocrine bone unit at UCSF, where his bench research focused on characterization and isolation of the PTH/PTHrP receptor.


Wendy Korht, PhD

Dr. Kohrt received her PhD in Exercise Science from Arizona State University in 1986 and spent the first 13 years of her career in the Department of Medicine, Division of Geriatrics and Gerontology, at Washington University School of Medicine in St. Louis. She carried out research projects there on the effectiveness of exercise and hormone replacement therapy to prevent such diseases as diabetes and osteoporosis in women and men, aged 60 years and older. In 1999, she moved to the University of Colorado Health Sciences Center (UCHSC) in Denver, where she established the IMAGE research group - Investigations in Metabolism, Aging, Gender, and Exercise. The mission of the IMAGE group is to be a national leader in aging research focused on the prevention of disease and the maintenance of functional independence in old age.

Dolores Shoback, MD

Dolores Shoback sees general endocrine patients with an emphasis on metabolic bone disease and osteoporosis. She is board certified in internal medicine with a subspecialty in endocrinology and metabolism. A professor of medicine and director of the UCSF Training Program in Diabetes, Endocrinology and Metabolism, her research interests are metabolic bone disease, the calcium sensing receptor and parathyroid hormone. Shoback completed her undergraduate studies at the University of Pennsylvania. She went on to Johns Hopkins University for medical school and performed a residency in internal medicine at Johns Hopkins Hospital and then completed a fellowship in endocrinology at Brigham and Woman's Hospital in Boston.

Frederick Singer

Frederick Singer, MD

Dr. Singer taught at Harvard Medical School prior to assuming faculty positions at both USC's and UCLA's schools of medicine. He has served on several advisory committees for the U.S. Public Health Service, co-chaired medical symposia on bone disorders, and received a special award from the Paget's Disease Foundation. Before joining JWCI, Dr. Singer was director of the Bone Center at Cedars-Sinai Medical Center (Los Angeles). As Director of the Endocrine/Bone Disease Program at JWCI, Dr. Singer is expanding his investigations of abnormal bone metabolism in cancer patients.


Laura L Tosi, MD

Dr. Laura L. Tosi, Associate Professor of Orthopaedics and Pediatrics at George Washington University, founded and directs the Bone Health Program at Children’s National Health System. Dr. Tosi graduated from Harvard Medical School and trained at the Columbia Presbyterian Hospital New York and the Hospital for Sick Children (Toronto). Dr. Tosi’s clinical practice, advocacy, research and education efforts focus on improving bone health across the lifespan. She has previously served on the Board of Directors of the American Academy of Orthopaedic Surgeons (AAOS), the Pediatric Orthopaedic Society of North America, the Orthopaedic Research and Education Foundation, the Academic Orthopaedic Society, and the Society for Women’s Health Research. She currently serves on the Board of the Osteogenesis Imperfecta Foundation and US Bone and Joint Initiative.

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Sally Warner, PhD

Dr. Warner is a Senior Director of Scientific and Medical Services for Musculoskeletal Imaging at PAREXEL Informatics. In this role she provides expertise in study design, imaging standardization, and customization of analysis software tools for musculoskeletal clinical imaging trials. Her research of bone metabolism, arthritis and body composition has included the use of various imaging modalities including histomorphometry, radiography, ultrasound, DXA, MRI, QCT and high resolution CT. In addition to her work in clinical trials, Dr. Warner writes and teaches courses in the field of musculoskeletal imaging. Dr. Warner’s academic field of study was in the biophysical science of sport and exercise physiology. She received her PhD from the University of Utah and her MA from the University of Connecticut.

Nancy Fugate Woods

Nancy Fugate Woods, PhD RN FAAN

Nancy Fugate Woods, is dean of the School of Nursing and professor in the department of family and child nursing at the University of Washington. Since the late 1970s, she has led a sustained program of research in the field of women's health. Her collaborative research has resulted in an improved understanding of women's transition to menopause, including physical and emotional factors; has advanced nursing care for mid-life women; and has provided women with a better understanding of their health. Her honors include election to the Institute of Medicine of the National Academies and to the American Academy of Nursing. She received the American Nurses Foundation Distinguished Contribution to Nursing Research Award, and the Pathfinder Award from the Friends of the National Institute for Nursing Research. She earned a B.S. in nursing from the University of Wisconsin, Eau Claire, in 1968; a M.N. from the University of Washington in 1969; and a Ph.D. in epidemiology from the University of North Carolina, Chapel Hill, in 1978.


Emeritus Members

Claude Arnaud

Claude Arnaud, MD, FACE, Past President, Medical and Scientific Advisory Board

Dr. Arnaud is internationally recognized for his research in bone and mineral metabolism, especially as it relates to parathyroid hormone (PTH) and parathyroid hormone related peptide (PTHrp). Before retiring from UCSF in January 1999, Dr Arnaud's research was continuously funded by the National Institutes of Health for 30 years, the National Aeronautics and Space Administration for 15 years and the Veterans Administration for 10 years. He has authored more than 200 scientific papers and been an invited lecturer at many local, national and international meetings and Universities. Dr. Arnaud is an active member of many prestigious clinical and scientific organizations and has served on editorial boards of their journals. He was one of the six founders of the American Society for Bone and Mineral Research (ASBMR), served as one of its Councilors, its third President and chairperson of its new Professional Practice and Archives Committees. He received the highest research award conferred by the ASBMR, the William F. Neuman Award, in 1991. He is a Fellow of the American Association for the Advancement of Science and of the American Association of Clinical Endocrinologists.

Michael McClung

Michael McClung, MD

Dr. McClung graduated from Rice University in Houston and from the University of Texas Southwestern Medical School in Dallas. After his training in Internal Medicine at Parkland Hospital in Dallas, he completed a fellowship in Endocrinology at the National Institute of Health in Bethesda, Maryland. He then joined the faculty at the Oregon Health Sciences University, where he is an Associate Professor of Medicine. At OHSU, he founded a clinic devoted to the care of patients with disorders of bone and calcium metabolism that eventually grew into the Oregon Osteoporosis Center. In 1987, Dr. McClung joined the Department of Medical Education at Providence Medical Center where he is actively involved in the training of young physicians. He is board certified in both Internal Medicine and in Endocrinology and Metabolism and is a fellow of the American College of Endocrinologists.

Betsy McClung

Betsy McClung, MN RN

Betsy McClung is the Associate Director for the Oregon Osteoporosis Center in Portland, Oregon. She has been involved in the clinical evaluation and treatment of patients at risk or diagnosed with osteoporosis for more than 20 years in collaboration with Michael McClung, MD, the Center's Director. Ms. McClung continues to be active in professional educational activities at the local, national and international level. Ms. McClung is a member of the Endocrine Nurses Society and is a past president of this society. She is also a member of The North American Menopause Society and has served on the Society's Executive Board of Trustees. She is a member of the American Society for Bone and Mineral Research. She currently serves on the Board of Directors for The Paget Foundation as well as the Scientific Advisory Board for the FORE. Ms McClung is the author of numerous papers and book chapters on postmenopausal women's health with a specific focus on osteoporosis evaluation and management.