Our Team



Tanzania Team
The IDEA study Tanzanian site is in the Hai district, on the slopes of Mount Kilimanjaro. Hai is a rural region, and the majority of the population are subsistence farmers. Hai has been a demographic surveillance site (DSS) since the mid 1990s, because it is a well demarcated geographical area with clear boundaries and little migration. As a result many epidemiological studies have been carried out in Hai, in collaboration with Northumbria Healthcare Trust and Newcastle University in the UK.
Biographies of the IDEA Tanzania team

Dr. John Kisima
Dr John Kisima is an Assistant Medical Officer (retired). He has worked as supervisor and coordinator for the Adult Morbidity and Mortality Project (AMMP) since 1992, a predominantly public health role. He has worked alongside Northumbria Healthcare Trust since 2003 coordinating a number of epidemiological studies, including the stroke incidence study in 2011 and continued this until retirement. He is now working on the IDEA study, and has been closely involved in screening tool validation and recruitment for the CST trial. He has an MSc in International Health from Edinburgh University, UK.

Mr. Godfrey Mbowe
Godfrey Mbowe is an occupational therapist currently working at Mawenzi regional referral hospital in Moshi. He also has teaching responsibilities on the diploma in occupational therapy course at Tumaini University, and has an interest in mental health. He has a BSc in Psychological Counselling and a Diploma in Occupational Therapy, both from Tumaini University, Tanzania.
Godfrey has previous training in delivery of CST for dementia from the UK, and is experienced in carrying out CST in Tanzania. He is married to Anna and has three children.

Mr. Aloyce Kisoli
Mr. Aloyce Kisoli is an MSc qualified nurse who currently has teaching responsibilities on the undergraduate nursing, physiotherapy and medical degree programmes at Kilimanjaro Christian Medical college. He has extensive experience of dementia research in Tanzania and has authored a number of publications related to dementia in Tanzania. He is a core member of the IDEA study team, and is also experienced in delivery of CST for dementia in Tanzania.

Mrs. Sarah Mkenda
Mrs. Sarah Mkenda is the current head of Occupational Therapy at Kilimanjaro Christian Medical Centre and is the lead for Occupational Therapy teaching at Kilimanjaro Christian Medical College. She trained in delivery of CST in the UK and is experienced in carrying out CST in Tanzania. Mrs Mkenda has a Masters degree in Occupational therapy from the UK.

Dr. Sarah Urasa
Dr Sarah Urasa is a consultant neurologist and physician working at Kilimanjaro Christian Medical College, Tanzania. Her role in the IDEA study has been specialist advice and diagnostic support as well as supervision of training for local healthcare workers on dementia. She is currently leading a study on delirium at Kilimanjaro Christian Medical Centre.

Dr. Declare Mushi
Dr Declare Mushi is a social scientist and public health expert. He has a PhD in public health from the University of Heidelberg, Germany. Dr. Mushi is currently a lecturer and director of postgraduate studies at Kilimanjaro Christian Medical and is the Principal Investigator of the Tanzanian site of the IDEA study.

Nigeria Team
The IDEA study Nigerian site is in Lalupon, Oyo state. The University of Ibadan is the oldest in Nigeria, and Ibadan University have been researching dementia for over twenty years, and publishing respected academic papers on dementia throughout this time.


adesolaAdesola Ogunniyi, Clinician, Researcher, Professor of Medicine (Neurology), University of Ibadan, and Honorary Consultant Physician/Neurologist to the University College Hospital, Ibadan, Nigeria. He was former Director, Institute for Advanced Medical Research and Training (IAMRAT), College of Medicine, University of Ibadan (2011-2014), and former Head, Department of Medicine of the institution (2000-2003; 2006-2009). He was a member of the Indianapolis-Ibadan Dementia Project and served, at various times, as Director, Investigator and Co-Principal Investigator. The study was funded by grants from the National Institute of Aging, USA. He participated in the investigation of the burden and risk factors for stroke as part of the WHO STEPS and the INTERSTROKE studies; was involved with the Centers for Disease Control and Prevention (CDC)–initiated control of cardiovascular diseases in sub-Saharan Africa (2003-2009). He was member of the Scientific Advisory Board of the National Institute of Mental Health, NIH, USA and the Global Alliance for Chronic Diseases on Grand Challenges in Global Mental Health (2010) as well as the World Health Organization Working Group on the Classification of Neurocognitive Disorders (2011). He currently serves as a member of the WHO Consultation Group on the Classification of Behavioural and Psychological Symptoms in Neurocognitive Disorders for ICD-11.

He received his medical degree from the University of Ife, Ile-Ife (now Obafemi Awolowo University), Nigeria and had residency training in Internal Medicine and Neurology at the University College Hospital, Ibadan. He was awarded the World Health Organization/Fogarty International Center/National Institute of Neurologic and Communicative Disorders and Stroke (WHO-FIC-NINCDS) fellowship in neuroepidemiology at the National Institutes of Health, USA (1986-7). He is well acquainted with the challenges and demands of collaborative studies and is the Principal Investigator of the Identification of Dementia in Elderly Africans (IDEA) Study that is funded by Grand Challenges Canada (2012-2015).

Akeem Olaonipekun Siwoku

akeemAkeem Olaonipekun Siwoku hails from Abeokuta, Ogun State, Nigeria. He received his training in Occupational Therapy from the Federal School of Occupational Therapy, Lagos from 2006 to 2009 and is currently a 400 level student of Psychology at the Faculty of the Social Sciences, University of Ibadan, Oyo state, Nigeria. He is a full-time therapist in the department of Psychiatry, College of Medicine- University College Hospital Ibadan Nigeria. This affords him the opportunity to work in a team of various health care workers comprising Nurses, Psychiatrists, Psychologists and Social Workers to assess and manage different mental health disorders. Akeem developed a strong sense of interest and devotion for clinical, training and research-oriented activities particularly in the area of neurosciences. As an occupational therapy practitioner, he is involved with the training and use of Cognitive Stimulation Therapy(CST) in the on-going Identification and Intervention for Dementia in Elderly Africans (IDEA)- a collaborative research project between college of medicine, University of Ibadan Nigeria, KCMU Tanzania and the Northumbra Health Care Trust Foundation in association with Newcastle University UK. The study is sponsored by Grand Challenges Canada.


Adediran Babatunde Ade

adediran babatundeAdediran Babatunde Ade is a Medical Doctor with interest in Community Health, he graduated from the Obafemi Awolowo University, Ile-Ife,Nigeria. He has worked as a Research officer at the African Council for Sustainable Health and Development (ACOSHED) and later as a Research Director at the Global Pact for African Health and Development Foundation (GLOPAHD) Foundation .He consults for the Ministry of Health /W.H.O /UNICEF as a State Technical Facilitator on the immunization programme in rural communities in Oyo State. He is currently pursuing his Fellowship in Community Medicine at the Department of Community Medicine University College Hospital, Ibadan, Nigeria he is the Research Doctor on the Identification and Intervention for Dementia in Elderly Africans (IDEA) Study for the Ibadan site.



Registered nurse (Adult) and Registered midwife. She currently works as the Research Nurse on the IDEA Study (Identification and Intervention of Dementia in Elderly Africans) since Mar, 2013. She worked as a nurse practitioner with Ibadan/Indianapolis Dementia Research Project, College of Medicine, University of Ibadan between May 2007 and August 2011. She qualified as a registered nurse from St Lukes’ Anglican School of Nursing, Wusasa Zaria, Kaduna State in 2002 and completed midwifery training at the Oba Ademola School of Midwifery, Abeokuta, Ogun State in 2004. She underwent training on adapting the Cognitive Stimulation Therapy in London and later, Newcastle between May and June 2013. She has extensive experience with community-based, cross-cultural epidemiological studies and caring for the elderly. Her role on the IDEA study included training of field interviewers, supervision of field data collection, validation of test instruments such as Zarit’s Caregiver burden, Alzheimer Disease Assessment Scale – Cognitive (ADAS-COG), Neuropsychiatry Inventory (NPI) and administration of Cognitive Stimulation Therapy with assessment of performance of the study participants.



reuben babtunde oludeleResearch Assistant on the IDEA Study since 2014. Babatunde holds a National Diploma (ND) in Business administration which he obtained from the Kwara State Polytechnic, Ilorin, Kwara State of Nigeria in 2011 He works as the data entry personnel on the project and serves as the liaison person with the community for contact tracing and home visits. He was involved with the CST administration and ensured good participation of subjects. He had previously worked as a Research Assistant on the World Health Organization-funded research on neonatal sepsis at the Department of Paediatrics Children Outpatient, University
College Hospital, Ibadan between 2011 and 2013. He is passionate about his profession with an outstanding human relation and great team spirit to work in both formal and informal organizations.


UK Team
Professor Richard Walker
Professor Richard Walker has been a consultant physician with an interest in healthcare of the elderly at North Tyneside General Hospital since 1995. He is the clinical lead for the Northumbria Parkinson’s disease service, which had 3 mentions in the UK Good Practice Guidelines for the National Service Framework on Chronic Neurological Conditions (March 2005), and was runner up for the Hospital Service Journal Awards 2005 (patient access category) and the Hospital Doctor Awards 2007(PD team category). His research interests in Parkinson’s disease (PD) include epidemiology, falls, service development, psychiatric symptoms, palliative care, bladder problems and Africa. He is chair of the British Geriatrics Society Movement Disorders Section and chair of the Movement Disorders Society African Task Force. He is the clinical lead for the Northumbria/Kilimanjaro Christian Medical Centre higher education link and has research interests in Africa in non-communicable disease including stroke, PD, epilepsy, atrial fibrillation, dementia and fluorosis. He has supervised several higher degrees (MDs and PhDs) as well as intercalating students doing Masters in Research and is involved with undergraduate teaching, both at the Medical School and within Northumbria Trust. He is honorary Professor of Ageing and International Health at the Institute of Health and Society, Newcastle University, UK.

DR W. Keith Gray
Dr Keith Gray is a research associate with Northumbria Healthcare NHS Foundation Trust. He has degrees in both physiotherapy and statistics and has been the author of over 70 peer-reviewed publications. He has a particular research interest in dementia, stroke and issues surrounding frailty in older populations in low- and middle-income countries.


Dr Catherine Dotchin
Catherine Dotchin is a consultant geriatrician and has been involved in ageing related research in Tanzania since 2005. Along with Professor Walker, Dr. Dotchin published the first community based prevalence study of Parkinsons Disease from SSA and helped institute treatment, rehabilitation and long term follow up of patient identified. She has also helped set up a community based prevalence study of dementia in Hai, Tanzania. Dr Dotchin is currently a Senior Research Fellow at Northumbria Healthcare NHS Foundation Trust and has recently finished a NIHR Clinical Lectureship in Ageing Medicine at the Institute for Ageing and Health, Newcastle University, UK.