About NIA

Offices & Divisions

Division of Geriatrics and Clinical Gerontology (DGCG)

Organizational Structure diagram for the Division of Geriatrics and Clinical Gerontology (DGCG)-- On the top strata are Evan Hadley, Director; Winifred Rossi, Deputy Director; and Rosaly Correa-de-Araujo, Senior Scientific Advisor. All the following branches report directly to the Director and Deputy Director, in 3 strata. 1 Geriatrics Branch. Staff includes Basil Eldadah (Chief), Lyndon Joseph, Marcel Salive, and Susan Zieman. 2 Clinical Trials Branch. Staff includes Sergei Romashkan (Chief) and Barbara Radziszewska. 3 Clinical Gerontology Branch. Staff includes Chhanda Dutta (Chief), Nalini Raghavachari, and Giovanna Zappala.

The Division of Geriatrics and Clinical Gerontology (DGCG) supports clinical and translational research on health and disease in the aged, and research on aging over the human life span, including its relationships to health outcomes.  DGCG foci include translational research for the development of new interventions for age-related conditions, prevention and treatment of multiple chronic conditions in the elderly, and studies that help to promote evidenced based geriatric care and inform policies affecting older adults.

DGCG comprises three major research areas administered by three Branches:  Geriatrics, Clinical Gerontology, and Clinical Trials. Division-wide emphases include research training and career development to for investigators across a wide range of specialties to expand their capabilities to address clinical aging issues, and the application of new technologies to expand opportunities for clinical aging research.

For inquiries, potential applicants are encouraged to review the scientific areas of responsibility of DGCG staff listed below. If you are unsure of whom to contact with regard to your proposed project, please feel free to contact the Branch Chief and he/she will direct your inquiry to the appropriate staff member.

Download the DGCG brochure. (PDF, 150K)

Office of the Director

Evan Hadley serves as the Division Director and is responsible for the overall program development and scientific direction of DGCG.

Winnie Rossi serves as the Division Deputy Director and is responsible for the operation of the Division, including overseeing the grants and administrative activities and budgets, and program analysis.

Rosaly Correa-de-Araujo serves as Senior Scientific Advisor to the Director, DGCG with current foci on to skeletal muscle functional deficits, biorepositories scientific and administrative management including policy development, and the STRIDE trial on fall injury prevention.

Geriatrics Branch

The Geriatrics Branch focuses on health issues regarding the aged. Research emphases include multifactorial geriatric syndromes such as risk for falls; symptomatic problems such as pain and fatigue; various types of disability; effects and interactions of multiple chronic conditions and development of effective treatment strategies for patients with multiple chronic conditions; effects of age-related changes on clinical or functional disease outcomes or treatment responses; effects of physical activity on disease and disability in older persons; and the elucidation, diagnosis, and treatment of previously unappreciated pathologic changes in old age (e.g., sarcopenia, vascular stiffening, diastolic dysfunction). The Geriatrics Branch also supports the Claude D. Pepper Older Americans Independence Centers (OAICs) which conduct basic and clinical research to develop more effective interventions to enhance the ability of older people to maintain independence.

Geriatrics Branch Staff and Areas of Scientific Responsibility:

Basil Eldadah, Chief
Lyndon Joseph
  • Musculoskeletal conditions, physical function, and disability
  • Physical activity/exercise in older adults
  • Anabolic agents (including testosterone)
  • Frailty
  • Falls and fractures
  • Obesity, metabolism, nutrition, and diabetes
Marcel Salive
  • Multiple chronic conditions and polypharmacy
  • Infectious diseases (including vaccinations)
  • Cancer
  • Wound healing / skin ulcer prevention
  • Urological conditions (including incontinence)
  • Clinical decision making and prediction tools
  • Preventative medicine
  • Systems of care, quality of care, and readmissions
  • Comparative effectiveness research methodology
Susan Zieman
  • Cardiovascular diseases
  • Anemia
  • Pulmonary disease
  • Renal disease
  • Thyroid conditions
  • Critical care / emergency care
  • Delirium
  • Clinical specialty liaison

Clinical Gerontology Branch

The Clinical Gerontology Branch focuses on clinically-related research on aging changes over the life span. Research emphases include factors affecting development of age-related conditions and disease risk factors (particularly for multiple age-related conditions) and interventions influencing these factors; exceptionally healthy aging (including exceptional longevity); protective factors against multiple age-related conditions; menopause and mid-life aging changes; translational human research to follow up findings from basic research on aging; long-term effects of current or new interventions that may be administered over a large part of the lifespan; and long-term effects of physical activity throughout the lifespan.

Clinical Gerontology Branch Staff and Areas of Scientific Responsibility

Chhanda Dutta, Chief
  • Menopause/reproductive aging
  • Role of physical activity/exercise on health span
  • Scientific lead for NIA's Go4Life exercise campaign
  • Physiological changes (e.g., cardiovascular, endocrine, metabolism, immune function, musculoskeletal) across the lifespan
  • Studies of health trajectories, including risk or protective factors, across the lifespan (e.g., childhood into young adulthood, young adulthood to middle age, middle- to old-age)
  • Changes in stem/progenitor cells with aging
  • Juvenile protective factors
  • Clinical translational research on aging
Nalini Raghavachari
  • Translational Genomics and Healthy Aging
  • Genetics of Longevity
  • Genetic Epidemiology
  • Exceptionally healthy aging
Giovanna Zappalà
  • Nutrition and aging
  • Clinical dietary intervention studies, including caloric restriction
  • Juvenile protective factors
  • Changes in stem/progenitor cells with aging
  • Career development related to research issues on aging across the lifespan

Clinical Trials Branch

The Clinical Trials Branch plans and administers clinical trials on age-related issues. Research emphases include interventions to prevent or treat "geriatric syndromes," disability, and complications of comorbidity or polypharmacy; trials to determine effects of interventions that influence multiple risk factors and outcomes in older persons, trials to detect age- or comorbidity-related differences in responses to interventions against conditions found in middle age and old age; interventions for problems associated with menopause and other mid- and late-life changes; interventions that may affect rates of progression of age-related declines in function in early and mid-life; and interventions with protective effects against multiple conditions.

Clinical Trials Branch Staff and Areas of Scientific Responsibility

The Clinical Trials Branch consists of Barbara Radziszewska and Sergei Romashkan, Chief.  Each staff member manages diverse areas of scientific responsibility, which include but are not limited to interventional studies on falls, physical function and disability, age-related hormonal changes, metabolic disorders, cardiovascular disease, anemia, urinary incontinence, and other.

All Division Staff

Rosaly Correa-de-araujo Senior Scientific Advisor to the Director, DGCG 301-496-6762 rosaly.correa-de-araujo@nih.gov e-mail
Chhanda Dutta Chief, Clinical Gerontology Branch 301-496-4161 duttac@mail.nih.gov e-mail
Basil Eldadah Supervisory Medical Officer 301-496-6761 eldadahb@mail.nih.gov e-mail
Evan Hadley 301-435-3044 hadleye@mail.nih.gov e-mail
Judy Hannah 301-435-0044 hannahj@nia.nih.gov e-mail
Lyndon Joseph 301-496-6761 josephlj@mail.nih.gov e-mail
Barbara Radziszewska Health Scientist Administrator 301-435-3046 radziszb@mail.nih.gov e-mail
Nalini Raghavachari Health Scientist Administrator 301-435-3048 nraghavachari@mail.nih.gov e-mail
Geralyn Roland Extramural Support Asst (OA) 301-435-3048 rolandge@od.nih.gov e-mail
Sergei Romashkan 301-435-3047 romashks@mail.nih.gov e-mail
Winnie Rossi 301-496-3836 winnie_rossi@nih.gov e-mail
Marcel Salive 301-496-6761 marcel.salive@nih.gov e-mail
Mariatu Sani Extramural Support Specialist 301-496-9785 sanim@od.nih.gov e-mail
Denise Turner Program Analyst 301-435-3044 turnerd@gw.nia.nih.gov e-mail
Giovanna Zappala Health Scientist Administrator 301-827-6240 giovanna.zappala@nih.gov e-mail
Susan Zieman Medical Officer, GCG-NIA 301-496-6761 susan.zieman@nih.gov e-mail