Browsing by Author "Owolabi, M."

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H3Africa partnerships to empower clinical research sites to generate high-quality biological samples
(2020) Croxton, T.; Agala, N.; Jonathan, E.; Balogun, O.; Ozumba, P.J.; Onyemata, E.; Onyemata, E.; Lawal, S.; Mamven, M.; Ajayi, S.; Melikam, S.E.; Owolabi, M.; Ovbiagele, B.; Adu, D.; Ojo, A.; Beiswanger, C.M.; Abimiku, A.
Background: The Institute of Human Virology Nigeria (IHVN) – Human Heredity and Health in Africa (H3Africa) Biorepository (I-HAB) seeks to provide high-quality biospecimens for research. This depends on the ability of clinical research sites (CRS) – who provide biospecimens – to operate according to well-established industry standards. Yet, standards are often neglected at CRSs located in Africa. Here, I-HAB reports on its four-pronged approach to empower CRSs to prepare high-quality biospecimens for research. Objectives: I-HAB sought (1) to assess a four-pronged approach to improve biobanking practices and sample quality among CRSs, and (2) to build human capacity. Methods: I-HAB partnered with two H3Africa principal investigators located in Nigeria and Ghana from August 2013 through to May 2017 to debut its four-pronged approach (needs assessment, training and mentorship, pilot, and continuous quality improvement) to empower CRSs to attain high-quality biospecimens. Results: Close collaborations were instrumental in establishing mutually beneficial and lasting relationships. Improvements during the 12 months of engagement with CRSs involved personnel, procedural, and supply upgrades. In total, 51 staff were trained in over 20 topics. During the pilot, CRSs extracted 50 DNA biospecimens from whole blood and performed quality control. The CRSs shipped extracted DNA to I-HAB and I-HAB that comparatively analysed the DNA. Remediation was achieved via recommendations, training, and mentorship. Preanalytical, analytical and post-analytical processes, standard operating procedures, and workflows were systematically developed. Conclusion: Partnerships between I-HAB and H3Africa CRSs enabled research sites to produce high-quality biospecimens through needs
Predictors and prognoses of new onset post-stroke anxiety at one year in black Africans
(Elsevier Inc., 2020) Ojagbemi, A.; Akinyemi, J.; Owolabi, M.; Akinyemi, R.; Arulogun, O.; Gebregziabher, M.; Akpa, O.; Olaniyan, O.; Salako, B.; Ovbiagele, B.
Background: There is relatively limited information on the risk factors and outcome of new onset Post stroke Anxiety (PSA) in Low- and Middle-Income Countries. We estimated incidence, cumulative incidence, risk factors and outcome of new onset anxiety in the first year of stroke among African stroke survivors. Methods: We analyzed the dataset of a completed clinical trial comprising patients enrolled to test an intervention designed to improve one-year blood pressure control among recent ( one month) stroke survivors in Nigeria. Anxiety was measured using the Hospital Anxiety and Depression Scale. Outcomes were assessed using the modified Rankin Scale (mRS), Community screening instrument for dementia (CSID) and Health Related Quality of Life in Stroke Patients (HRQOLISP-26). Results: Among 322 stroke survivors who were free of anxiety at baseline, we found a one-year cumulative incidence of 34% (95% CI = 28.6 39.3). Rates were 36.2% (95% CI =29.6 42.7) for men and 29.2% (95% CI =19.9 38.3) for women. In multivariate Cox regression analyses, haemorrhagic stroke type was associated with higher risk of new onset PSA (Hazard Ratio=1.52, 95% CI =1.01 2.29). New onset PSA was independently associated with cognitive [(mean difference (MD) in CSID scores=1.1, 95% C.I=0.2, 1.9)] and motor decline (MD in mRS scores= 0.2, 95% C.I= 0.4, 0.02), as well as poorer quality of life overtime (MD in total HRQOLISP-26 scores=3.6, 95% C.I=1.0, 6.2). Conclusion: One in 3 stroke survivors in Nigeria had PSA at one year. Clinicians in SSA should pay special attention to survivors of haemorrhagic stroke as they are at higher risk of incident anxiety and therefore its consequences.
Stroke lesions and post-stroke depression among survivors in Ibadn, Nigeria
(2013) Ojegbemi, A.; Owolabi, M.; Baiyewu, O.
"Background: We aimed to determine the association between the neuro-radiological characteristics of stroke lesions and post-stroke major depression among survivors in Ibadan, Nigeria. This is in the background of a paucity of information on the clinico-pathological correlation of post-stroke emotional responses among African Survivors. Method: We studied 30 stroke survivors receiving physiotherapy. The radiological characteristics of the stroke lesions were documented using computerized tomography or magnetic resonance imaging scans in the acute phase of the stroke. While the presence of major depressive disorder meeting criteria in the fourth edition of the Diagnostic and Statistical Manual was assessed using the Schedule for Clinical Assessment in Neuropsychiatry (SCAN), between 3 months and 2 years after. The association between lesion characteristics and depression was explored using logistic regression analysis. Result: Nine (30.0%) stroke survivors met criteria for major depressive disorder. There were significant differences in their gender. The differences in the lesion types approached the set level of significance in survivors with or without major depressive disorder. There were however no differences when considering hemispheric lateralization or intrahemispheric lesion location. Being female, but not the lesion characteristics was strongly associated with post-stroke major depressive disorder. Conclusion: Lesion characteristics documented in the acute phase of stroke could not predict the occurrence of majbr depressive disorder during rehabilitation in this sample. The occurrence of depression among stroke survivors may ultimately be determined by a combination of factors. "
Unraveling the ethical, legal, and social implications of neurobiobanking and stroke genomic research in Africa: a studyprotocol of the African neurobiobankfor precision stroke medicine ELSI project
(Sage Publications, 2020) Akinyemi, R. O.; Jenkins, C.; Nichols, M.; Singh, A.; Wahab, K.; Akpalu, A.; Sarfo, F. S.; Owolabi, L. F.; Obiako, R.; Akinyemi, J.; Ojebuyi, B.; Adigun, M.; Musbahu, R.; Bello, A.; Titiloye, M.; Calys-Tagoe, B.; Ogunronbi, M.; Uvere, E.; Laryea, R.; Fakunle, A.; Adeleye, O.; Olorunsogbon, O.; Ojo, A.; Adesina, D.; Mensah, N.; Oguike, W.; Coleman, N.; Mande, A.; Uthman, M.; Kalaria, R. N.; Jegede, A.; Owolabi, M.; Ovbiagele, B.; Arulogun, O.
The ethical, legal, and social implications (ELSI) of emerging neurobiobanks and data resources are unclear in an African scientific landscape with unique cultural, linguistic, and belief systems. The overarching goal of the African Neurobiobank for Precision Stroke Medicine–—ELSI Project is to identify, examine, and develop novel approaches to address ELSI issues of biobanking and stroke genomic research in sub-Saharan Africa (SSA). To accomplish the goal we will (1) explore knowledge, attitude, perceptions, barriers, and facilitators influencing ELSI issues related to biobanking and stroke genomic research; (2) use information obtained to craft a community intervention program focused on ELSI issues; and (3) build capacity and careers related to genomics and biobanking for effective client/community engagement while enhancing regulatory, governance, and implementation competences in biobanking science in SSA. A community-based participatory research and mixed-methodological approach, focused on various levels of the social ecological model, will be used to identify and examine relevant ELSI issues. Contextual intervention tools, platforms, and practices will be developed to enhance community understanding and participation in stroke biobanking and genomics research activities while facilitating enduring trust, and equitable and fair utilization of biobanking resources for genetic and trans-omics research. A concurrent capacity building program related to genetic counseling and biobanking will be implemented for early career researchers. The huge potential for neurobiobanking and genomics research in Africa to advance precision medicine applicable to stroke and other neurological disorders requires addressing ELSI challenges while building sustainable research, career, and regulatory capacities in trans-omics and biobanking science.