PROJECT /SUMMARY ABSTRACT
My prior training and exposures linked with my long-term goal makes this K43 Emerging Global Award for
Developing Countries the ideal opportunity for me to realise my aspiration as an independent researcher in
the field of translational genomics in non-communicable diseases. Genetic research in the area of NCDs in
general, but particularly in diabetes is very sparse in Africa. I was however opportuned to be part of the only
notable diabetes genetic project in West Africa, the Africa America Diabetes Mellitus Study, by which the
seed of my interest in genetic research was cultivated. Recently, through the NIH D43 collaborative
research-training programme between University of Ibadan and University of Chicago, I was exposed
further to the impact of genomics advances in improving diagnostic precision of diabetes. In order to
advance my career as independent investigator, I now ask whether acquisition of competency in diagnostic
molecular genomics in NCDs, and its application in the clinic setting, can translate into improved diagnostic
precision of diabetes, particularly detection of monogenic cause of diabetes as a test case.
Non-communicable diseases (NCDs) such as diabetes have devastating consequences on African nations
such as Nigeria. Contributing to this is very little access to genetic testing resulting in misdiagnosis or, in
some cases like monogenic diabetes (MD), non-diagnosis. Consequently, the proportion, spectrum and
pattern of undiagnosed MD among patients with commoner types of diabetes in Nigeria remain unknown. It
is not known whether identifying and addressing physicians' related barriers to genetic testing could
facilitate genotypic description of MD in Nigeria, as a prototype for application of genetic testing to other
NCDs. My overall objective for this K43 application is to describe the frequency and spectrum of genetic
variants of MD in Nigeria, while I obtain training and competency in diagnostic molecular genomics focused
on NCDs, so as to improve diagnostic precision of these conditions and thereby make Ibadan, Nigeria, a
referral center for the entire West Africa. My hypothesis is that physicians' related factors constitute
significant barriers to application and utility of genetic testing in the clinic, with consequent undiagnosed or
misdiagnosed MD among patients with diabetes in Nigerian, who are likely to have different genotypic
variants compared to other population.
In the research plan, I describe the three specific aims that need to be achieved in the Nigerian setting to
move from non-application of genetic testing in the clinic to using the outcome of genetic testing to describe
the genotypic spectrum of a previously undiagnosed condition such as MD in Nigeria. The knowledge and
experience gained can then be extended to other NCDs and, through training of others, increase capacity
and impact the whole of West Africa. First, there is need to identify physicians' related barriers by carrying
out surveys among eligible doctors practicing in public health institutions in Ibadan. Secondly, I plan to
develop and implement a genomics programme to diagnose and classify diabetes in the clinic through
design of a practical, contextualised decision support tool for physicians. Lastly, using a two-step strategy
of screening likely patients by a practical guideline and sequencing DNA of selected patients, I will then
describe the frequency, spectrum and genotypic pattern of MD among clinic patients with diabetes.
In order to be successful at application of genomics to improve diagnostic precision of NCDs in Nigeria, I
need further training in genomics, bioinformatics as well as leadership skills required to build a RCE in a
LMIC. I have identified and assembled a mentorship committee in these areas and together we have
planned a curriculum of courses training programme that will lead me to this end. The K43 award will
enable me to develop the competency to independently carry out phenotype-genotype matching in NCDs,
and make Ibadan a referral and training centre for other parts of West Africa.