Publications

Export 4284 results:
Sort by: Author Title Type [ Year  (Desc)]
2021
Amarquaye, G, Arrow P, Bansal K, Bedi R, Campus G, Chen KJ, Chibinski A, Chinzorig T, Crystal Y, Duangthip D, Ferri M, Folayan M, Garidkhuu A, Hamama H, Jirarattanasopa V, Kemoli A, Leal S, Leelataweewud P, Chu C-H.  2021.  Global Oral Health Policies and Guidelines: Using Silver Diamine Fluoride for Caries Control, 2021/07/01. 2:685557. Abstract
n/a
Sarfo, F, Akpa O, Ovbiagele B, Akpalu A, Wahab K, Komolafe M, Obiako R, Owolabi L, Osaigbovo G, Jenkins C, Ogbole G, Fakunle A, Tiwari H, Arulogun O, Arnett D, Asowata O, Ogah O, Akinyemi R, Owolabi M.  2021.  Influence of age on links between major modifiable risk factors and stroke occurrence in West Africa, 2021/07/01. 428:117573. Abstract
n/a
Adewole, K, Ogunfowokan A, Olodu M.  2021.  Influence of Health Literacy on Health Promoting Behaviour of Adolescents with and without Obesity, 2021/07/01. 15:100342. Abstract

BackgroundLearning has been associated with human behaviour, and health literacy is vital in an individual’s health promotion and maintenance activities.
Purpose
This study aimed at comparing the health literacy and health-promoting behaviour of adolescents with and without obesity, and to also identify the association between health literacy and health-promoting behaviour of these two groups of adolescents.
Methods
A concurrent mixed-method design was adopted and the study was conducted among150 adolescents with obesity and 150 adolescents without obesity from 15 private secondary schools in Osun State, Nigeria. A structured self-administered questionnaire and an in-depth interview guide were used to collect data on their health literacy levels and health-promoting behaviour.
Results
The findings showed that adolescents without obesity had a higher level of health literacy (70%) compared to their counterparts with obesity (59%). More than half (55.3%) of those with obesity and 35% of those without obesity scored low on health-promoting behaviour scale. Also, there was a significant relationship between health literacy and health-promoting behaviour among adolescents with obesity (r = 0.29; p = 0.001) and those without obesity (r = 0.85, p =0.015).
Conclusion
The study concluded that adolescents with obesity had lower level of health-promoting behaviour despite their high level of health literacy, compared to those without obesity. Irrespective of the adolescent’s obesity status, their health-promoting behaviour is significantly associated with their health literacy. Implication for school nursing practice is documented.

Oloniniyi, I, Ibigbami O, Amiola A, Esan O, Esan O.  2021.  First Episode Psychosis during COVID-19 Pandemic: A Case Series, 2021/06/26. 38:599-603. Abstract

Introduction:Neuropsychiatric events are often associated with viral pandemics. The unexpected turn of events the world over since the onset of the coronavirus pandemic may serve as stressors which can trigger or worsen mental disorders particularly psychosis. There is little or no reports about acute psychosis on the background of this current global pandemic particularly in the African context. The aim of this article describes a case series of acute schizophrenia-like disorder with COVID-19 related psychotic themes in the context of the current pandemic.
Materials and methods:
We present a case series of 2 patients with first episode psychotic illnesses during the COVID-19 pandemic. Both patients presented at the mental health outpatient clinic of the Obafemi Awolowo University Teaching Hospitals Complex, Ile-Ife, Nigeria.
Results:
Two patients with no previous history of mental illness presented with COVID-19 delusional themes and odd behaviours. Mental state examination revealed abnormalities in behaviour, thought system, perception and cognition. ICD10 diagnosis of Acute and Transient Psychotic disorder was made in both patients. There were no abnormal physical health findings and symptoms resolved with the use of antipsychotics.
Conclusion:
Information on the COVID-19 pandemic may influence the content of psychotic experiences among the general population. A high index of suspicion and acute services are important to ensure prompt intervention and promotion of community mental health. Clinicians need to be well informed to be able to identify what deviates from the norm, and to be able to provide prompt intervention.

Soyoye, D, Abiodun O, Ikem R, Kolawole B, Akintomide A.  2021.  Diabetes and peripheral artery disease: A review, 2021/06/15. 12:827-838. Abstract
n/a
Oladejo, AS, Bolaji AO, Okuniyi EO, Gidado RM.  2021.  Segregation of Genes Controlling Seed Coat Color in Cowpea (Vigna unguiculata [L.] Walp)), 2021/06/05. Genetic and Biodiversity Journal. :198-206. Abstract

Aims: To evaluate, identify and select superior genotypes with better agronomic traits with respect to insect resistance and yield components for the development of improved cowpea varieties.Study Design: The plants were raised using completely randomized design (CRD).
Place and Duration of Study: Screen house of the Department of Botany, Obafemi Awolowo
University, Ile-Ife, Nigeria, between July 2017 and January 2018.
Methodology: A total of 67 Vigna accessions consisting of 36 V. vexillata and 31 V. unguiculata species were evaluated and the quantitative and qualitative attributes of the various accessions studied were documented. The data obtained in the study were subjected to univariate analysis involving descriptive statistics, the General Linear Model (GLM); and as well as multivariate analysis involving Principal Component Analysis (PCA). The differences among means of each variable were tested using the Duncan Multiple Range Test (DMRT) at ˂0.05 using System Analysis Software (SAS) version 9.13. Pearson Correlation Coefficient was also used to test the correlation among the quantitative attributes of the varieties studied.
Results: The results of the investigation showed that there was significant variation in most of the quantitative attributes of the species studied though many of the qualitative vegetative attributes were considerably uniform. The Principal Component Analysis showed that some of the important traits that contributed significantly to the variation were number of days to seedling emergence, plant height, leaf length, leaf breadth, petiole length, pod length, pod breadth, seed length, seed breadth, number of seeds per pod and number of locules.
Conclusion: From the findings obtained in this study, it could be concluded that the desirable
traits of Tvnu1249 (V. vexillata) such as early maturity, and Tvnu72 (V. vexillata) with high percentage seed set and resistance to flower bud thrips could be transferred into Sanzi and Ifebrown (V. unguiculata varieties) with larger seed sizes and high percentage seed set through
hybridization and other breeding techniques.

Sartorius, B, VanderHeide J, Yang M, Goosmann E, Hon J, Haeuser E, Chowdhury MAK, Perkins S, Jahagirdar D, Schaeffer L, Serfes A, LeGrand K, Abbastabar H, Hailemariam Z, Eshete A, Abu-Gharbieh E, Accrombessi M, Adebayo O, Adegbosin A.  2021.  Subnational mapping of HIV incidence and mortality among individuals aged 15–49 years in sub-Saharan Africa, 2000–18: a modelling study, 2021/06/05. Abstract
n/a
Faniyi, I, Olofinjana B, Fasakin O, Ajenifuja E, Alo F, Eleruja M, Ajayi E.  2021.  Effects of graphene oxide and reduced graphene oxide on thermal and mechanical properties of expanded polystyrene-based composites, 2021/06/01. 44 Abstract

Graphene oxide (GO) acts as an insulator but when reduced to reduced graphene oxide (RGO), it has high heat storage capacity. This can result in lowering the phase change temperature when embedded in a material such as expanded polystyrene (EPS), thus making it a good heat-resistance material. In this study, the thermal and the mechanical effects of GO and RGOs over EPS were analysed. GO was synthesized using modified Hummer’s method, while the reduction process was taken through different routes using three different reductants: hydrazine (RGO-HZ), ascorbic acid (RGO-AA) and the extract of Amaranthus hybridus (RGO-AH). The same content of graphite and its derivatives were separately and chemically bonded together with EPS forming composites (i.e., graphite composite, GO composite, RGO-HZ composite, RGO-AA composite and RGO-AH composite) and cast on a mould at room temperature to form a dog-bone shape. Fourier transform infrared spectroscopy, differential thermal analysis, scanning electron microscopy and mechanical tests were conducted on ordinary EPS and on each of the composite samples. The results showed a significant enhancement of thermal and mechanical properties of the composites over ordinary EPS.

Mahmoud, B, Mirghni A, Oyedotun K, Fasakin O, Manyala N.  2021.  Nanoplatelets ammonium nickel-cobalt phosphate graphene foam composite as novel electrode material for hybrid supercapacitors, 2021/06/01. 883:160897. Abstract

Nanoplatelets NH4(NiCo)PO4·H2O and NH4(NiCo)PO4·H2O/GF composites were synthesized through a hydrothermal approach and used as actively positive electrode for hybrid supercapacitor. Electrochemical performances of the samples were carried out in both the 3and 2-electrode measurements in 1 M KOH solution. The composite NH4(NiCo)PO4·H2O/GF exhibited an improved specific capacity of 111 mAh g⁻¹ over the pristine NH4(NiCo)PO4·H2O material with a 100 mAh g⁻¹, which was obtained at 0.5 Ag⁻¹. Moreover, an assembled hybrid device NH4(NiCo)PO4·H2O/GF//AC revealed maximum specific energy of 47 Wh kg⁻¹ and specific power of 468 W/kg at 0.5 Ag⁻¹. The device was subjected to a long-term stability test of over 10,000 GCD cycles and could retain about 70% of its initial capacity and also proved a columbic efficiency of 99.8% at 10.0 A g⁻¹. Interestingly, the device could preserve a 1.14 V of its initial potential window of 1.4 V after being subjected to a 72 h self-discharge test, showing an efficiency of 81.4%. Based on the results discussed on this work, the NH4(NiCo)PO4·H2O/GF composite could be an excellent candidate as future energy storage material, specifically supercapacitors.

Chen, KJ, Duangthip D, Gao S, Huang F, Anthonappa R, Oliveira B, Turton B, Durward C, El Tantawi M, Attia D, Heima M, Muthu S, Maharani D, Folayan M, Phantumvanit P, Sitthisettapong T, Innes N, Crystal Y, Ramos-Gomez F, Chu C-H.  2021.  Oral Health Policies to Tackle the Burden of Early Childhood Caries: A Review of 14 Countries/Regions, 2021/06/01. 2:670154. Abstract
n/a
Sartorius, B, VanderHeide J, Yang M, Goosmann E, Hon J, Haeuser E, Chowdhury MAK, Perkins S, Jahagirdar D, Schaeffer L, Serfes A, LeGrand K, Abbastabar H, Hailemariam Z, Eshete A, Abu-Gharbieh E, Accrombessi M, Adebayo O, Adegbosin A.  2021.  Subnational mapping of HIV incidence and mortality among individuals aged 15–49 years in sub-Saharan Africa, 2000–18: a modelling study, 2021/06/01. 8:e363-e375. Abstract
n/a
Nguyen, A, Brown B, El Tantawi M, Ndembi N, Okeibunor J, Mohammed A, Folayan M.  2021.  Time to Scale-up Research Collaborations to Address the Global Impact of COVID-19 – A Commentary, 2021/06/01. 8:277-280. Abstract
n/a
Oyedotun, K, Mirghn A, Fasakin O, Mahmoud B, Tarimo D, Manyala N.  2021.  Activated Carbon Derived from Biomass-Waste Okra As High-Performance Electrodes for Use in Supercapacitors, 2021/05/30. MA2021-01:495-495. Abstract
n/a
Folayan, M, Brown B, Haire B, Ndembi N, Babalola C.  2021.  Considerations for stakeholder engagement and COVID-19- pandemic group journal - aug 2020, 2021/05/30. Abstract
n/a
Soyoye, D, Kolawole B, Ikem R, Ugwu E, Soyoye O, Owolabi F, Anozie C, Amjo O, Ogundele O.  2021.  Screening for Diabetes Mellitus and Hypertension in Ile-Ife - A World Diabetes Day Experience, 2021/05/29. 38:434-438. Abstract

Background and objectives:Non-communicable diseases have emerged as major public health concerns in developing nations, where communicable diseases used to be the major contributor to the public health burden. Diabetes and hypertension contribute significantly to this menace, and they are largely undiagnosed in the affected population. We determined the prevalence of previously diagnosed and undiagnosed hypertension and diabetes mellitus in adult Nigerians.
Methods:
Participants who presented in response to advertisement for the study and gave informed consent were recruited using convenience sampling. Data was collected using a proforma to obtain salient medical and social history. Anthropometric and blood pressure measurements were done. Capillary blood was taken for initial glucose measurements. Oral glucose tolerance test (OGTT) was subsequently done in non-diabetics with elevated blood glucose to confirm the diagnosis of diabetes.
Results:
One hundred and thirty-six participants with age range 24 - 90 years were recruited for the study. Participants were mainly females (61.8%). Prevalence of diabetes among study participants was 19.9% (previously diagnosed -16.9% vs undiagnosed - 3.0%) with higher occurrence among males. Hypertension was found in 50.7% of participants; 28.7% were on treatment for hypertension, while 22.0% were newly diagnosed. Diabetes was associated with older age and elevated systolic blood pressure while hypertension was associated with older age, obesity and elevated blood glucose.
Conclusion:
This study showed a high occurrence of diabetes and hypertension among adult Nigerians; hence efforts to address these should be intensified. Targeted screening of people at risk for non-communicable diseases is an added benefit.

Animasahun, L, Taleatu B, Adewinbi S, Bolarinwa HS, Fasasi A.  2021.  Synthesis of SnO2/CuO/SnO2 Multi-layered Structure for Photoabsorption: Compositional and Some Interfacial Structural Studies, 2021/05/29. 3:74-81. Abstract

Many metal oxide heterostructures have been synthesized as mixed oxides or layered structures for photocatalytic, photodegradation of pollutants and light-harvesting applications. However, in the layered structures the effects of interfacial properties and composition have largely not been explored. Hence, the effects of interfacial mixing and diffusion of sandwiched thin CuO layer on optical absorption of as-deposited and heat-treated multi-layered structured SnO2/CuO/SnO2 films were studied. The RBS analysis of the as-deposited films showed the presence of a minute amount of Cu in the surface and bottom SnO2 layers of the structure. We attributed this to inhomogeneous layer thickness evidenced by very low Sn/Cu atoms ratio of the CuO layer. However, the thermal treatment of the layered structure led to pronounced interlayer mixing and consequent formation of SnO2-CuO solid solutions throughout the layered structure. The layer integrity of the inserted CuO of the as-deposited films was very high and the as-deposited structure was far more optically absorbing. However, the annealed structure showed lesser optical absorption because of the onset of interfacial mixing and improved crystallization. This reflected in the optical bandgap variations of the as-deposited and annealed multilayered structures. The significance of this result is that the multi-layered films possess band narrowing – evidence of increased photon absorption - making it a better candidate than pure SnO2 oxide for photocatalysis, photodegradation and photodetection applications. It also pointed to the fact that attention must be paid to effects of heat treatments or annealing when inserting an absorbing layer into a photocatalyst or a material meant for photodegradation or any light-harvesting material.

Folayan, M, El Tantawi M, Virtanen J, Feldens C, Rashwan M, Kemoli A, Villena R, Al-Batayneh O, Amalia R, Gafar B, Mohebbi S, Arheiam A, Daryanavard H, Vukovic A, Schroth R.  2021.  Correction to: An ecological study on the association between universal health service coverage index, health expenditures, and early childhood caries, 2021/05/26. 21 Abstract
n/a
Jiang, CM, Duangthip D, Auychai P, Chiba M, Folayan M, Hamama H, Kamnoedboon P, Lyons K, Matangkasombut O, Mathu-Muju K, Mathur V, Mei ML, Morgan M, Poolthong S, Morankar R, Srinivasan M, Takahashi T, Yaklai S, Zhang S, Lo E.  2021.  Changes in Oral Health Policies and Guidelines During the COVID-19 Pandemic. Frontiers in Oral Health, 2021/05/21. 2 Abstract
n/a
Wuraola, F, Famurewa B, Olasehinde O, Odujoko O, Adesina O, Aregbesola S.  2021.  From the breast to the upper jaw: A rare case of metastatic breast cancer, 2021/05/11. 14:60-63. Abstract

Breast cancer is the commonest malignancy in women globally. Metastasesof advanced breast carcinoma to bones, lungs and liver are well known but
spread to maxillary bone presenting as maxillary sinus and palatal swelling is
rare. We present a case of advanced breast carcinoma in a female Nigerian with
clinical, radiological and histopathological features of lung and right maxillary
bone metastases. To the best of our knowledge, this is the first reported case of
metastatic breast cancer to the lungs and maxilla in Nigeria. The debilitating
sequelae of advanced untreated breast carcinoma in a resource limited setting
with suboptimal comprehensive cancer care are highlighted.

FJ, F, Soyinka J, SA O, OK P, Adegbola A, BA A.  2021.  Physicochemical properties, antioxidant and antimicrobial activities of Nigerian Polyfloral honeys, 2021/05/05. 10:1-9. Abstract

Natural honey is widely applied as food sweetener, food preservative and in folk medicine for treatmentof varying degree of human affliction and diseases. This study evaluates the antimicrobial activities,
physicochemical, phytochemical and antioxidant properties of four Nigerian honey samples collected
from Ekiti, Kogi, Osun and Ondo (coded as A, B, C and D respectively). Physicochemical determination
of honey samples include: pH, free acidity, electrical conductivity and density. Determination of
phytochemical was carried out quantitatively using phenolics and flavonoid; while the total antioxidant
capacities was measured in an in-vitro system using inhibition of lipid peroxidation, thiobarbituric acid
reactions and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity. Agar diffusion method
was used to measure the antimicrobial activities of the honey samples against some selected
microorganisms (Staphylococcus aureus, Bacillus subtilis, Psuedomonas aeruginosa and Escherichia
coli). The results of the physicochemical characterization showed that the honey samples were
polyflorals characterized by low pH (3.76 ± 0.02, 4.17 ± 0.15, 3.94 ± 0.10 and 3.77 ± 0.01 for A, B, C
and D respectively) capable of inhibiting the growth of most microorganisms and density ranging
between 1.38 and 1.45 g/ml. All the honey samples showed antimicrobial activity against the selected
microorganisms at concentration greater than 60 % v/v. The antioxidant investigation also demonstrated
ability to inhibit lipid peroxidation and thiobarbituric acid reactions and 2, 2-diphenyl-1-picrylhydrazyl
(DPPH) radical scavenging activity possibly due to the reasonable amount of flavonoids and phenolics
therein.

Braimah, R, Oladejo T, Olarinoye T, Adetoye A, Osho P, Ramat O, Braimah, R.O..  2021.  A multidisciplinary approach to the management of temporomandibular joint ankylosis in a sickle-cell anemia patient in a resource-limited setting, 2021/05/04. Abstract
n/a
Olorunkosebi, A, Eleruja M, Adedeji A, Olofinjana B, Fasakin O, Omotoso E, Oyedotun K, Ajayi E, Manyala N.  2021.  Optimization of Graphene oxide through various Hummers' methods and comparative reduction using green approach, 2021/05/01. 117:108456. Abstract

Graphene oxide (GO) was synthesized using three techniques and was reduced using two reducers' extracts from neem and pumpkin leaves. The obtained GOs and RGOs were characterized using Fourier infra-red (FTIR) spectroscopy, Raman spectroscopy, UV–visible spectrophotometry, energy dispersive x-ray spectroscopy (EDX) and scanning electron microscopy (SEM). Results revealed that all the three methods used are capable of producing GO with various levels of oxidation. FTIR spectra of RGOs showed that the CO signature of GOs at 1730–1740 cm⁻¹ were eliminated after reduction. Other characterization results of the RGOs revealed that both the neem and pumpkin extracts are capable of reducing the synthesized GO. With all these, it can be concluded that the extracts of neem and pumpkin are good reducing agents. The neem and pumpkin extracts, which are ecofriendly can replace the use of hazardous chemicals that are not ecofriendly.

El Tantawi, M, Folayan M, Oginni O, Adeniyi A, Mapayi B, Yassin R, Chukwumah N, Sam-Agudu N.  2021.  Association between mental health, caries experience and gingival health of adolescents in sub-urban Nigeria, 2021/04/30. 21 Abstract
n/a