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Background: Chronic kidney disease (CKD) is becoming an increasing public health problem. A study that reviewed patients receiving treatment in hemodialysis centers reported 79.2% of patients from Jigawa State to be managed for CKD. This study aimed to find the factors associated with CKD among adults from high-burden kidney disease areas of Jigawa State. MATERIALS AND METHODS: A cross-sectional descriptive study design that utilized mixed methods (quantitative and qualitative) of data collection (sequential explanatory) was used to study eligible respondents from the four local government areas (LGAs) reported to have a high burden of kidney disease. The modified WHO STEPS questionnaire, key informant interview, and in-depth interview guides were employed to collect information from the eligible selected community members. Multistage and purposive sampling techniques were used, and data were analyzed using IBM SPSS version 22.0 with a statistical significance set at P ≤ 0.05. Thematic analysis was used to analyze the qualitative interviews. Results: The age of the respondents ranged from 18 to 102 years, with a median of 45 (interquartile range = 30–80) years. The period prevalence over the past five years (2018–2023) of having kidney disease in the family was 67 (18.6%), while the point prevalence (currently having a patient with kidney disease) was 51 (14.1%). In terms of the distribution of cases by LGAs, Jahun reported more cases, 33.3% in the family within the last five years, followed by Hadejia 18.7%. In the same vein, respondents from Jahun 28.9% and Hadejia 16.5% reported more current cases of kidney disease in the family. The prevalence of ever had patient with chronic kidney disease in the family was significantly higher among those with systolic hypertension (BP) ≥140 mmHg (29.3%, P < 0.001). Elevated systolic BP was significantly associated with currently having a kidney disease patient (23.3%, P = 0.001). The interviews revealed late presentation and noncompliance to medications among those with risk factors as the perceived facilitators of kidney disease. Conclusions: The prevalence of kidney disease was alarming in the high-burden kidney disease areas. The government should develop a sustainable model for mass community screening of risk factors and community-based health insurance to effectively manage all identified cases.

Abstract The demand for sustainable development goals and the absence of systematic development and organised exploration for gold has prompted this study to integrate magnetic and radiometric datasets with lithology to evaluate the gold mineralisation potential in the Ilesha schist belt. This study considers 3168.72 km2 of the Ilesha schist belt in southwestern Nigeria, a frontier belt for gold deposits. The high-resolution airborne magnetic and radiometric datasets were processed using enhancement techniques, including the analytical signal, lineament density, and K/Th ratio. CET grid analysis, Euler deconvolution, and analytical signal depth estimation methods were used to aid the interpretation. The spatial integration and interpolation were performed using the Analytical Hierarchy Process (AHP) and weighted overlay analytical tools within the ArcGIS environment. The dominant structural controls for potential mineralisation are ENE–WSW and ESE–WNW trends. The depth of the magnetic sources revealed by the analytical signal ranged from 63.17 to 629.47 m, while depths ranging from 47.32 to 457.22 m were obtained from Euler deconvolution. The delineated highly magnetic edge sources, dense lineaments, radiometrically highlighted alteration zones, and lithological hosts for gold mineralisation were integrated to establish the gold mineralisation potential map. The AHP deductions reveal that 10.52% of the study site is within the high mineralisation potential class, a remarkable 60.39% falls within the moderate class, a significant portion (28.86%) falls within the poor class, and 0.23% is considered unfavourable. The result was optimised by validation using known mines, with 94% (i.e., 15 out of 16 mining sites) plotting within the high mineralisation potential class. This assessment provides invaluable insight for stakeholders and policymakers to embark on gold exploration and exploitation and promote sustainable mineral development.

Abstract Background This case report presents an exceptionally rare and atypical presentation of diphtheria in a 17-year-old female of Hausa ethnicity residing in an area with an elevated incidence within Kano State, Nigeria. By the end of 39th epidemiological week of 2023, only two cases of cutaneous diphtheria have been reported among 5,811 cases managed at MMSH diphtheria treatment center (DTC), representing approximately 0.035% of all diphtheria cases during that time period. Case presentation A 17-year-old Hausa female presented with a 3-day history of throat discomfort, malaise, and muffled speech. Physical examination revealed a pseudomembrane covering the tonsillar pillars, grade 3 tonsillar enlargement, and an unusual genital manifestation characterized by extensive vulval edema, severe pain, and a large, greyish patch extending into the vaginal introitus. Her medical history was significant for recent exposure to diphtheria and the emotional impact of her sibling's death from the same disease. Diagnostic tests, including throat swab culture and histocytology, confirmed diphtheria in the throat and vulvovaginal regions. The patient was promptly initiated on diphtheria antitoxin, Azithromycin, and innovative sitz baths with hydrogen peroxide. After 4 days of Sitz bath therapy, complete pseudomembrane clearance was observed, and the patient's symptoms resolved. Conclusion This case underscores the complexity of diphtheria presentations, particularly with rare pseudomembranes in both throat and vaginal regions. The successful management, combining traditional and innovative therapies, highlights the importance of recognizing and addressing unusual manifestations promptly. The potential role of auto-inoculation and the efficacy of interventions like hydrogen peroxide sitz baths warrant further investigation. Overall, this case contributes to the understanding of diverse diphtheria presentations, guiding future clinical strategies for management of diphtheria cases and emphasizing the imperative of comprehensive vaccination efforts.

ABSTRACTBackground The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of COVID-19, caused over 6.8 million deaths globally as of March 2023. The knowledge, attitude, and practices (KAP) of people to COVID-19 varied in different locations around the world. In this study, we investigated the KAP of women attending Maimusari Primary Healthcare in Jere Local Government, Borno state during the pandemic with a view to understanding the KAP related to COVID-19 across different demographics of women.Methods A cross-sectional survey was carried out using self-administered questionnaire on 400 women attending the health facility. The questionnaire surveyed participants’ demographic characteristics, knowledge, attitude, practices, and willingness to take vaccine. Descriptive and inferential statistics was used to analyze the data.Results Of the 400 participants, a higher proportion were between the ages of 20 and 29 (36.2%), Kanuri by tribe (47.2%), from monogamous family (66.0%) with less than 5 in terms of family size (64.8%) with no formal education (57.8%). The overall mean knowledge score was 13.64 ± 2.36, which differs significantly (p

Interest in naturally occurring phytochemicals has been on the increase, they are believed to reduce the risk of brain disorders. Hispidulin (HN) is a phenolic flavonoid compound with various pharmacological and biological effects on the central nervous system. It belongs to the flavone class of flavonoids. It can be found in different plant materials, especially fruits and vegetables. The literature used in this review was collected from credible scientific databases including ScienceDirect, Scopus, PubMed, Google Scholar, and Hindawi without time restriction, using relevant keywords, such as HN, brain, central nervous system, flavonoids, and flavones. HN was discovered to possess pro-apoptotic properties, act as an antioxidant, inhibit cytokine production and toll-like receptor 4 expression, as well as impede nuclear factor kappa beta and mitogen-activated protein kinase B. HN was also found to inhibit lipid peroxidation in vitro and reduce brain edema in mice. These pharmacological potentials suggest that HN is a promising candidate for neuroprotection in CNS disorders like depression and epilepsy. This review provides an update on the scientific literature concerning how these activities could help provide various forms of neuroprotection in the CNS. Additional experimental data on the effects of HN in models of neurological disorders and neuroprotection should be explored further. Based on the current study, HN is a promising candidate for neuroprotection of the CNS.

A one hour old baby boy presented to the Special Care Baby Unit (SCBU) of the Ahmadu Bello University Teaching Hospital (ABUTH), Shika, Zaria, on account of respiratory distress noticed from birth. He was a product of supervised pregnancy, delivered at 37 weeks gestation via emergency caeserien section performed due to severe pre eclampsia and fetal distress. APGAR scores were 2 and 7 at one and five minutes respectively. He weighed 1850 grams and was found to be dusky, inactive, hypothermic (T = 35.50C) and in severe respiratory distress (SPO2 ranged between 60 % and 72 %). He was tachypnoeic with respiratory rate persistently above 80 cycles/ min, and had reduced air entry in the mid and lower zones of the lungs bilaterally with wide spread coarse crepitations. A diagnosis of perinatal asphyxia was entertained with differential diagnoses of pulmonary hypoplasia, hyaline membrane disease and group B streptococcal (GBS) pneumonia. He had a full sepsis screen including chest radiograph and was commenced on supplemental oxygen via nasal cannula, antibiotics and other supportive measures. The patient however continued to have laboured breathingand subsequently had an apnoeic attack. He was resuscitated and commenced on bubble nasal CPAP.He did remarkably well and was weaned off CPAP after a total of 60 hours. A repeat chest radiograph showed remarkable aeration of the lungs as against an earlier one which showed a reticulogranular (ground glass) appearance.

Systemic lupus erythematosus is an autoimmune multisystemic inflammatory disease that is rare in children. Though a disease of the black race it is rarely diagnosed in black African children. Only few cases have been report in Nigeria and these were in the south. We report a case of a 7-year-old girl who presented with recurrent body swellings, an unusual rash, pericardial effusion and gastro-intestinal disturbances. The diagnosis was made after serology was found to be positive for Anti-nuclear antibody (ANA). She later developed stroke which was characterized by a convulsive episode, loss of consciousness and subsequent rightsided hemiplegia. She gradually regained consciousness after three days with residual weakness of the right side of her body. She has commenced prednisolone and is currently on follow-up at our clinic. SLE though rareshould be considered in any child with multiorgan disease, nephritis or stroke, especially after common conditions in our environment have been excluded.

Objectives: Parental knowledge of a child’s heart disease, treatment and prevention of complications may promote a better health related behavior towards the care of the child. Most of these children often present with failure to thrive which the parents may not associate with the disease. This study is aimed at determining the knowledge of parents of children with congenital heart disease (CHD) and the impact of the disease on their growth. Methods: This was a cross sectional study consisting of parents and children with CHD attending the Pediatric Cardiology Clinic of Aminu Kano Teaching Hospital. Relevant information was gotten from pre-tested questionnaires- containing data such as age, anthropometric parameters, educational level of parents and knowledge of their children’s cardiac defect. Results: Out of the one hundred and three parents recruited in this study, ninety-one (88.3%) of the parents knew the correct cardiac diagnosis. which had no statistically significant association with their educational status. There was statistically significant association between maternal educational status and ability to name the medications (X2= 27.01, df=12, p=0.008). A total of sixty nine (67%) children have a WAZ score of ≤−2 and

Background: Medical schools use different evaluation methods after students undergo a period of instruction for certification of acquisition of requisite skills and competencies required for registration. Despite a global trend towards adoption of OSCE format to test competencies, its adoption in medical schools in Nigeria has been relatively slow and local experiences with its use are limited. We describe the development and administration of OSCE for the formative assessment of undergraduate medical students of Kaduna state university at the end of paediatrics clinical rotation. Methodology: OSCE was developed and conducted to assess clinical skills of 20 undergraduate medical students at the end of clinical posting in paediatrics. Students rotated through a series of clinical encounters arranged in ten stations in a circuit, each for a short duration of five minutes. Clinical tasks were carefully chosen to reflect learning objectives of the posting using standardized patients while scoring was done using task-specific and validated checklists by the same assessors. Results: A range of clinical competencies in different clinical scenarios, including history taking, physical examination and basic clinical skills was examined using this format. The conduct was resource intensive with much time spent during the selection of the competencies and appropriate standardized patients to be tested, standardization of checklists, briefing assessors and choosing appropriate venue as well as preparation of stations. Unfamiliarity with OSCE by both some students and assessors was a major challenge. Conclusions: OSCE is a feasible way of assessing a wide range of clinical competencies of medical students during paediatric rotation in our setting.

Approximately 15 million babies are born preterm each year.1 Preterm infants commonly experience postnatal growth failure due to insufficient intake of micronutrients. We aim to determine the outcome of preterm neonates thatreceived micronutrients. Methods: The study subjects comprised of 210 preterm neonates admitted to (SCBU) of Federal Medical Centre, Brinin kebbi, Kebbi State from 1st June 2020 to 30st May, 2022. The subjects were randomized into two groups; 100 preterm neonates (Study group) received micronutrients (Reload; Reload Brands, LLC, Salt Lake City, Utah, USA) while, 110 preterm neonates (Control group) did not receive micronutrients. Biodata and other important information were obtained. All the babies (210) received the usual treatment protocol of preterm admitted to our SCBU. Ethical approval was obtained from the Research and Ethics Committee. Results: Birth weights of the 210 neonates ranged from 800grams to the highest 2500grams with mean CC –BY 4.0 birth weight of 1.54kg ±0.95. Average daily weight gains in 71% of the study subjects ranged from 25grams to a maximum of 29 grams per day while, in the non- micronutrients group, 54% had daily weight gain range of 10- 14grams per day (p = 0.001). Twelve (12%) of the Micronutrient group (MG) and 30% 0f the Non-Micronutrient group (NMG) had need for blood transfusion respectively (p = 0.002). The average ho sp ital stay was 22.95±9.68; hospital stay for the MG was 8 to 21 days while that of the NMG was 22 to 42 days (p =0.001). C o n c l u s i o n s : M i c r o n u t r i -ents intake were in consistent with optimal weight gain, shorter hospital stay and lower need for blood transfusion in preterm newborns.

Background: In early 2020, Nigeria recorded its first case of COVID-19. The disease later became a pandemic with devastating consequences on the health and population globally. The exact incidence of the disease in Nigeria has not been reported. Aim: We determined pooled estimates, clinical characteristics, outcomes, and disease severity for COVID-19 patients in Nigeria. Materials and Methods: The search for relevant literature was conducted using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines across multiple databases, including PUBMED, Web of Science, AJOL, BIOLINE, Hinari, and Cochrane Library. The search was done from November 1, 2021, to February 2, 2022. Studies of laboratory-confirmed COVID-19 cases with relevant data were included. Two reviewers independently performed study selection, article screening, and data extraction. Studies that did not differentiate between confirmed pathogenic isolates and specimen contamination or colonization were excluded. Of 58 articles, 14 studies were included in qualitative analysis, 77,419 total tested population. Results: The study found the prevalence of COVID 19 to be 20.2%; 95% confidence interval (CI): 13.2–27.4. Of these 16.2% 95% CI: (5.1–26.2) were symptomatic, while 21.3% 95% CI: (12.4–30.2) were asymptomatic. The prevalence based on diagnostic modality was 39.3%; 95% CI (30.2–48.1) using enzyme linked immunosorbent assay based rapid diagnostic test, 25.1% 95% CI (19.3–31.1) using polymerase chain reaction based test. Based on study design, the Prevalence was 10.3% 95% CI (4.1–24.2) in cross sectional studies; with 25.1% 95% CI (19.2–31.1) in retrospective study. The regional difference ranges from 11.1%; 95% CI (6.3–28.2) in North Central Nigeria to 42.4%; 95% CI (41.2–44.3) in North Western Nigeria. Conclusion: In conclusion, this meta-analysis reported an estimated prevalence of COVID-19 in Nigeria, indicating a moderate community transmission. It also demonstrates a tendency to decline in severe acute respiratory syndrome coronavirus 2 positivity. This finding provides a window of opportunity for strengthening existing preventive intervention measures, enhancing serologic and genomic surveillance, improving clinical management, and improving mobilization towards vaccination, particularly among susceptible populations.

Introduction Quality of life (QoL) is a vital healthcare indicator among people living with human immunodeficiency virus (PLWHA). Assessing the effects of comorbidities on QoL among PLWHA is of clinical and public health importance. This study compared the QoL of comorbid and non-comorbid PLWHA at St. Gerard’s Catholic Hospital (SGCH), Kaduna. Methods This was a prospective cross-sectional study of 178 conveniently selected and stratified comorbid PLWHA and 172 non-comorbid PLWHA receiving care at the facility. Data was collected using a structured, interviewer-administered instrument. The QoL scores were statistically compared using the Mann‒Whitney U test. P

Background: Birth preparedness and complication readiness remains one of the important strategies for reducing maternal mortality. One of its important components is knowledge of obstetric danger signs (KODS). The KODS is as important to men as it is to women, especially in African countries where majority of the household heads are men and are the major decision makers. Objective: The objective of the study was to determine the KODS among the household heads of Nasarawan Buhari, Nigeria. Materials and Methods: A cross-sectional community-based descriptive study was conducted among 104 household heads (or their representatives) of Nasarawan Buhari, Giwa Local Government Area Kaduna State, Nigeria, from April 15 to May 10, 2019. Data were collected using pretested semi-structured interviewer-administered questionnaires. Data were analyzed using IBM SPSS version 25 (2017). Results: Majority of the respondents were aged between 40 and 49 years, with a mean age of 40 ± 12.6 years. The overall KODS was poor (70.2%). After controlling for confounders, the only determinant of good KODS was the age of respondents. Household heads older than 30 years were more likely to have good KODS than those younger than 30 years (odds ratio 1.04, 1.001–1.07). Conclusion: The overall KODS among the respondents was poor, while the age of respondents was a determinant of having good KODS. The Authority of Giwa Local Government Area Council (LGC) of Kaduna State should design and implement a program aimed at educating the household heads in the LGC.

Abstract This study assessed the gamma-ray shielding potential of clay, sand, gypsum and kaolin commonly used as a building material in Northwestern, Nigeria. The radiological status of the samples was first evaluated by determining the activity concentrations of 238U, 232Th and 40K using NaI (Tl) detector after which elemental composition and mass density were determined using Neutron Activation Analytical Technique. After which the mass attenuation coefficients (MAC), linear attenuation coefficients (LAC), half value layer (HVL), tenth value layer (TVL), and effective atomic number (Zeff) were determined experimentally and theoretically using standard point sources of 137Cs and 60Co photon peaks (0.662 and 1.332, 1.173) MeV and Py-MLBUF software. The activity concentrations were found to range from 51 to 59 Bq kg−1 with a mean value of 59 Bq kg−1 for 238U, 24 to 27 Bq kg−1 with a mean value of 29 Bq kg−1 for 232Th, and 219 to 247 Bq kg−1 with a mean value of 247 Bq kg−1 for 40K which were about within the world recommended values of 33, 45 and 420 Bq kg−1 respectively. The results of the elemental compositions show that Si, Al, K, Fe, and Ba in clay and sand samples have concentrations in the range of 36.83–78.48%, 1.92–26.05%, 6.33–21.96%, 2.39–19.09%, and 0.09–1.44%, respectively, while in kaolin and gypsum, results revealed that Si, Al, K, Fe, and Ca range between 0.34 and 65.52%, 1.14–35.82%, 0.00–12.12%, 0.00–5.77%, and 0.00–96.6%, respectively. However, the concentrations of other elements such as Mg, Ti, Mn, Zn, Na, and Ba varied significantly with the samples. The results showed that clay has an average density of 1.96 g/cm3, sand has 2.32 g/cm3, kaolin has 2.63 g/cm3, and gypsum has the highest density with a value of 2.66 g/cm3 compared to other samples. During the measurements, a thallium-activated sodium-iodide NaI (TI) detector was used. A narrow beam transmission geometry condition was adopted for the measurements to ensure minimal scattered radiation. Absorption and attenuation of gamma beams as a function of sample thickness against gamma energy generally exhibit an increasing gamma ray behaviour as the sample thickness increases from 1 to 3 cm. The results showed that the gypsum, kaolin, sand, and clay were capable of attenuating 63.5%, 61.5%, 58.4%, and 44.2 of gamma-ray photons of energy 0.662 MeV at 3 cm thickness %, respectively, and 40.6%, 32.9%, 30.6%, and 27.3% of gamma energy 1.332 MeV at 3 cm thickness, respectively. The results showed that MAC, LAC, and Zeff of all the samples decreased with an increase in photon energy, while those of HVL and TVL increased. The experimental results for all the gamma-ray shielding parameters were found to be in good agreement with the theoretical values obtained using Py-MLBUF. The results have shown that all the samples have similar photon attenuation behaviours; however, gypsum has the best shielding potential than kaolin and this is attributed due to its highest density value.

Abstract The COVID-19 pandemic has been a life threatening and spreads wildly with physical human contact. Physical distancing is recommended by health experts to prevent the spread; thus, agronomic research has to be designed in conformity to this preventive standard during the pandemic. Consequently, this study was designed to evaluate the reliability of using digital tools in nutrient management research amid the COVID-19 pandemic in northern Nigeria. Fifty extension agents (EAs) were selected across 15 LGAs of Kaduna and Kano states. The EAs were trained on how to generate fertilizer recommendation using an android mobile phone-based nutrient expert (NE), to measure farmers’ field sizes using UTM Area measure mobile phone app, and open data kit to record, submit and aggregate data during the exercise. Each EA covered 50 farms, where two nutrient management practices—one determined by the farmers: farmer fertilizer practice (FFP), and the other generated using the NE were evaluated. Results show that around 90% of the farmers have an average field size of 1.13 ha. All selected farmers used improved maize varieties for planting, among which 21% been able to use the exact recommended or lower seed rate. Use of inorganic fertilizer was 33% higher than the average recommended NE rate, while average yield of the NE fields was 48% higher than for the FFP. The results of this study indicate that yield can be improved with site-specific nutrient management (SSNM) extension approach. The SSNM using digital tools as the NE seem promising and befits to agronomic research in northern Nigeria amid the COVID-19 pandemic.

Abstract Waste beneficiation is key to environmental protection and the realisation of a circular economy. Herein, amorphous alumina (a-Al2O3) derived from aluminium waste cans (AWC) was used to modify plantain stalk as an adsorbent for sequestration of lead (II) and chromium (VI) ions from electroplating wastewater. Raw plantain-stalk (RPS) and amorphous-alumina modified plantain stalk (APS) developed as adsorbents were characterised using various equipment such as x-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), and Brunauer–Emmett–Teller (BET). The FTIR revealed that the adsorbents are rich in functional groups that could promote the adsorption process which includes carboxyl, hydroxyl, and aliphatic groups. Also, the BET analysis showed a substantial increase in the surface area of APS (174.448 m2/g) compared to that of RPS (40.531 m2/g) which could be due to the effect of modification by the a-Al2O3. The batch adsorption studies revealed that the APS achieved 99.38% and 98.33% removal of Cr(VI) and Pb(II), respectively, which is superior to RPS adsorption efficiency. Also, the estimated and experimental data for the APS compared well under all the kinetic models studied with R2 > 0.88. This suggested that chemisorption is the most plausible adsorption mechanism of Cr(VI) and Pb(II) onto the APS. Further analysis showed that the Cr(VI) and Pb(II) adsorption followed the Langmuir model with the RL value of 0.038 and 0.999, respectively, which indicated that the two metal ions were effectively adsorbed onto the APS. Therefore, this work demonstrated that the modification of plantain-stalk with amorphous-alumina derived from AWC enhanced the characteristics of the APS and favoured its adsorption of the selected heavy metals.

Abstract Type 2 diabetes mellitus (T2D) causes gastroparesis, delayed intestinal transit, and constipation, for unknown reasons. Complications are predominant in women than men (particularly pregnant and postmenopausal women), suggesting a female hormone-mediated mechanism. Low G-protein coupled estrogen receptor (GPER) expression from epigenetic modifications may explain it. We explored sexually differentiated GPER expression and gastrointestinal symptoms related to GPER alterations in wild-type (WT) and T2D mice (db/db). We also created smooth muscle-specific GPER knockout (GPER KO) mice to phenotypically explore the effect of GPER deficiency on gastrointestinal motility. GPER mRNA and protein expression, DNA methylation and histone modifications were measured from stomach and colon samples of db/db and WT mice. Changes in gut motility were also evaluated as daily fecal pellet production patterns. We found that WT female tissues have the highest GPER mRNA and protein expressions. The expression is lowest in all db/db. GPER downregulation is associated with promoter hypermethylation and reduced enrichment of H3K4me3 and H3K27ac marks around the GPER promoter. We also observed sex-specific disparities in fecal pellet production patterns of the GPER KO mice compared to WT. We thus, conclude that T2D impairs gut GPER expression, and epigenetic sex-specific mechanisms matter in the downregulation.

Abstract The functional properties of engine mounts largely depend on the rubber compound formulation. This study proposes the use of rice husk–derived silica (RHS) blended with carbon black (N772) as an effective and environmentally friendly substitute for fillers used in rubber engine mounts (REMs). CV-60 natural rubber was filled with the blended fillers at various ratios, and their compatibility for use as rubber engine mounts (REMs) was assessed. Grey Relational Analysis was utilised to determine the optimal blend loading levels for use in rubber engine mounts, resulting in 40 phr of N772 and 20 phr of RHS cured at 130 °C and 2.5 MPa for 20 min. The developed REMs and conventional REMs had low vibration data variation during the performance assessment. Their resonance transmissibility was 5.03 and 3.74, corresponding to natural frequencies of 24.27 Hz and 26.94 Hz, respectively. The RHS/N772 REMs had excellent damping characteristics and lower transmissibility in the isolation zone of the vibration isolation curve, which is outside of the resonant frequency region. The efficiency curves showed that the blended fillers are a better and more effective material for REMs at all frequencies, balancing static deflection and vibration isolation.

Background: This was a cross-sectional community-based survey to study the prevalence of serum antibodies against the severe acute respiratory syndrome coronavirus 1 (SARS-COV-1) and determine possible source of antibodies as to whether from vaccination or from natural infection as well as attempt to compare antibody levels in response to the different four types of vaccines administered in Nigeria. Methods: A cross-sectional community-based study of the prevalence of serum antibodies against all four vaccine types used in Nigeria amongst a representative sample of people aged 18 years and above in the six geopolitical zones of the country using a multistage sampling technique covering 12 states of the country with two states being randomly selected from each geopolitical zone. High-throughput Roche electrochemiluminescence immunoassay system (Elecsys Anti-SARS-COV-1 Cobas) was used for qualitative and quantitative detection of antibodies to SARS-COV-1 in human plasma. Results: There was no statistically significant difference between the proportions with seropositivity for both the vaccinated and the unvaccinated (P = 0.95). The nucleocapsid antibody (anti-Nc) titres were similar in both the vaccinated and the unvaccinated, whereas the Spike protein antibody (anti-S) titres were significantly higher amongst the vaccinated than amongst the unvaccinated. Antibody levels in subjects who received different vaccines were compared to provide information for policy. Conclusion: While only 45.9% of the subjects were reported to have been vaccinated, 98.7% of the subjects had had contact with the SARS-COV-1 as evidenced by the presence of nucleocapsid (NC) antibodies in their plasma. The 1.3% who had not been exposed to the virus, had spike protein antibodies which most likely resulted from vaccination in the absence of NC antibodies. Successive vaccination and booster doses either through heterogeneous or homologous vaccines increased antibody titres, and this stimulation of immune memory may offer greater protection against coronavirus disease 2019.

Abstract Cancer is one of the major causes of death in the modern world, and the incidence varies considerably based on race, ethnicity, and region. Novel cancer treatments, such as surgery and immunotherapy, are ineffective and expensive. In this situation, ion channels responsible for cell migration have appeared to be the most promising targets for cancer treatment. This research presents findings on the organic compounds present in Albizia lebbeck ethanolic extracts (ALEE), as well as their impact on the anti-migratory, anti-proliferative and cytotoxic potentials on MDA-MB 231 and MCF-7 human breast cancer cell lines. In addition, artificial intelligence (AI) based models, multilayer perceptron (MLP), extreme gradient boosting (XGB), and extreme learning machine (ELM) were performed to predict in vitro cancer cell migration on both cell lines, based on our experimental data. The organic compounds composition of the ALEE was studied using gas chromatography-mass spectrometry (GC–MS) analysis. Cytotoxicity, anti-proliferations, and anti-migratory activity of the extract using Tryphan Blue, MTT, and Wound Heal assay, respectively. Among the various concentrations (2.5–200 μg/mL) of the ALEE that were used in our study, 2.5–10 μg/mL revealed anti-migratory potential with increased concentrations, and they did not show any effect on the proliferation of the cells (P

Abstract The present study investigated crustal structures and geological bodies within selected areas of the southern Benue trough and the adjacent crystalline basement. It utilized high-resolution aeromagnetic data to provide original insights into the contrasting structures and geological bodies within the area, while also identifying promising areas for further mineral and hydrocarbon investigations. The aeromagnetic anomaly data were analyzed using various techniques, including total gradient magnitude, pseudo-gravity transformation, tilt derivative, and source parameter imaging. The total gradient magnitude anomalies revealed a considerable component of the basin affected by block faulting which may have resulted from severe tectonic and structural deformation of the metamorphic basement and the subsequent injection into the sedimentary sequence, a few intrusions. The pseudo-gravity transformation identified a large igneous body in the sedimentary basin which is characterized by positive pseudo-gravity anomalies and surrounded on both sides by linear negative anomalies that signify a rift zone. The positive amplitude of the tilt derivative identified subtle linear magnetic minerals associated with the geologic structure and igneous bodies that suggest considerable mineral exploration prospects. A two-dimensional model of the source parameter imaging reveals the basement below the sedimentary basin to be intensely fragmented and variably subsided with the floor of the basin forming irregular upward and downward folds. In conclusion, the findings suggest promising prospects for mineral exploration along the margin of the sedimentary basin and potential hydrocarbon resources in the northeastern segment of the basin, which is characterized by fewer intrusions.

The incidence of disseminated gonococcal infection (DGI) is rising in some parts of the world, but there is paucity of data on its true incidence from sub-Saharan Africa. DGI has varied manifestations in different population group. We report a case of a 30-year-old sexually active woman presenting with hemorrhagic symptoms 2 weeks after a surgery on account of diagnosis of uterine fibroid made at a peripheral hospital. A multidrug-resistant Neisseria gonorrhoeae was isolated from the wound on her surgical site and blood sample. She was managed with intravenous meropenem, pressure dressing, and blood products, with the patient making a full recovery after a week. This case is presented because it is a rare one. Moreover, there is the need to revive the awareness of clinicians on the existence of multidrug-resistant gonococcus in our environment. We herein report a case of DGI from Nigeria.

Abstract BackgroundThe COVID-19 pandemic caused by SARS-CoV-2 is causing ongoing human and socioeconomic losses. ObjectiveTo know how far the virus has spread in Niger State, Nigeria, a pilot study was carried out to determine the SARS-CoV-2 seroprevalence, patterns, dynamics, and risk factors in the state. MethodsA cross-sectional study design and clustered, stratified random sampling strategy were used to select 185 test participants across the state. SARS-CoV-2 IgG and IgM rapid test kits (colloidal gold immunochromatography lateral flow system) were used to determine the presence or absence of antibodies to the virus in the blood of sampled participants across Niger State from June 26 to 30, 2020. The test kits were validated using the blood samples of some of the Nigeria Center for Disease Control–confirmed positive and negative COVID-19 cases in the state. SARS-CoV-2 IgG and IgM test results were entered into the Epi Info questionnaire administered simultaneously with each test. Epi Info was then used to calculate the arithmetic mean and percentage, odds ratio, χ2 ResultsThe seroprevalence of SARS-CoV-2 in Niger State was found to be 25.4% (47/185) and 2.2% (4/185) for the positive IgG and IgM results, respectively. Seroprevalence among age groups, genders, and occupations varied widely. The COVID-19 asymptomatic rate in the state was found to be 46.8% (22/47). The risk analyses showed that the chances of infection are almost the same for both urban and rural dwellers in the state. However, health care workers, those who experienced flulike symptoms, and those who had contact with a person who traveled out of Nigeria in the last 6 months (February to June 2020) were at double the risk of being infected with the virus. More than half (101/185, 54.6%) of the participants in this study did not practice social distancing at any time since the pandemic started. Participants’ knowledge, attitudes, and practices regarding COVID-19 are also discussed. ConclusionsThe observed Niger State SARS-CoV-2 seroprevalence and infection patterns meansuggest that the virus has widely spread, far more SARS-CoV-2 infections have occurred than the reported cases, and there is a high asymptomatic COVID-19 rate across the state.

BackgroundLow back pain (LBP) is the leading global cause of years lived with disability. Of the biopsychosocial domains of health, social determinants of LBP remain under-researched. Socioeconomic status (SES) may be associated with the onset of new LBP or outcomes of acute LBP, with educational attainment (EA) being a key component of SES. The association between EA and LBP has yet to be the subject of a dedicated review and meta-analysis.PurposeTo review evidence of the association between EA and a) onset or b) outcomes of acute and subacute LBP in the adult general population and to conduct statistical pooling of data where possible.MethodsAn electronic search was conducted in MEDLINE, Embase, CINAHL, and ProQuest from inception to 2nd November 2023 including reference lists to identify relevant prospective studies. Risk of bias (RoB) was assessed using the Quality in Prognostic Studies (QUIPS) tool. Where adequate data were available, estimates were pooled using a random-effects meta-analysis. Overall evidence for each outcome was graded using an adapted GRADE.ResultsAfter screening 8498 studies, 29 were included in the review. Study confounding and attrition were common biases. Data from 19 studies were statistically pooled to explore EA as a predictor of new LBP onset or as prognostic for outcomes of acute or subacute LBP. Pooled results showed no association between EA and the onset of new LBP (OR: 0.927, 95%CI: 0.747 to 1.150; I2 = 0%). For predicting outcomes of acute LBP, compared to those with no more than secondary-level education, post-secondary education or higher was associated with better outcomes of pain (OR: 0.538, 95%CI: 0.432 to 0.671; I2 = 35%) or disability (OR: 0.565, 95%CI: 0.420 to 0.759; I2 = 44%). High heterogeneity (I2>80%) prevented meaningful pooling of estimates for subacute LBP outcomes.ConclusionWe found no consistent evidence that lower EA increases the risk of LBP onset. Lower EA shows a consistent association with worse LBP outcomes measured at least 3 months later after acute onset with inconclusive findings in subacute LBP. Causation cannot be supported owing to study designs. High-quality research is needed on potential mechanisms to explain these effects.

It is well-known that the Tseng algorithm and its modifications have been successfully employed in approximating zeros of the sum of monotone operators. In this study, we restored various thoracic diseases' computerized tomography (CT) images, which were degraded with a known blur function and additive noise, using a modified Tseng algorithm. The test images used in the study depict calcification of the Aorta, Subcutaneous Emphysema, Tortuous Aorta, Pneumomediastinum, and Pneumoperitoneum. Additionally, we employed well-known image restoration tools to enhance image quality and compared the quality of restored images with the originals. Finally, the study demonstrates the potential to advance monotone inclusion problem-solving, particularly in the field of medical image recovery.

BackgroundThe novel SARS-CoV-2 virus that causes Coronavirus disease (COVID-19) has redefined global health and response to Acute Respiratory Infection (ARI). The outbreak of a cluster of influenza-like illnesses in Wuhan, China, has morphed into a pandemic in the last quarter of 2019, stretching from South East Asia to Europe, The Americas, Africa, and the Australian subcontinent. We evaluated the prevalence of depression among outpatients diagnosed with ARI.Materials and methodsWe utilized a cross-sectional, observational design and investigated the prevalence of symptoms of depression among outpatients with ARI and described the characteristics of outpatients with ARI in Kaduna State.ResultsThe prevalence of symptoms of depression was 19.6% for respondents with symptoms of ARI and 14.4% for those without symptoms of ARI. On no risk of depression, we had a higher proportion of the respondents without symptoms of ARI (86%) than those with symptoms of depression (80%) (M = 318.4, SD = 29.62 case, and M = 344.0, SD = 14.2 control, r = 0.88, CI = 13.5 to 6.5, P = 0.000952). Likewise, in the category with mild risk of depression, respondents without symptoms of ARI were fewer (10%) than those with symptoms of depression (15%) (M = 58.4, SD = 26.0 case, and M = 42.1, SD = 12.7 control, r = 0.86, CI = 11.8 to 5.8, P = 0.0136. There was no significant difference between respondents with symptoms of ARI and without symptoms of ARI in the categories of moderate (M = 13.6, SD = 5.1 case, and M = 11.6, SD = 4.6 control, r = 0.87, CI = 2.3 to 2.1, P = 0.178) and high (M = 5.6, SD = 2.5 case, and M = 4.4, SD = 3.2 control, r = 0.61, CI = 1.2 to 1.5, P = 0.174) risk of depression.ConclusionSymptoms of depression were commoner among respondents who presented with symptoms of Acute Respiratory Infection (ARI) at the Outpatient Department (OPD). However, further explanatory research is needed to establish causality.

Climate change and inter-annual variability cause variation in rainfall commencement and cessation which has consequences for the maize growing season length and thus impact yields. This study therefore sought to determine the spatially explicit optimum maize sowing dates to enable site specific recommendations in Nigeria. Gridded weather and soil data, crop management and cultivar were used to simulate maize yield from 1981-2019 at a scale of 0.5°. A total of 37 potential sowing dates between 1 March and 7 November at an interval of 7 days for each year were evaluated. The optimum sowing date was the date which maximizes yield at harvest, keeping all other management factors constant. The results show that optimum sowing dates significantly vary across the country with northern Nigeria having notably delayed sowing dates compared to southern Nigeria which has earlier planting dates. The long-term optimal sowing dates significantly (p

Bacterial pathogens have remained a major public health concern for several decades. This study investigated the antibacterial activities of Miang extracts (at non-neutral and neutral pH) against Bacillus cereus TISTR 747, Escherichia coli ATCC 22595, Salmonella enterica serovar Typhimurium TISTR 292 and Streptococcus mutans DMST 18777. The potential of Polyvinylpolypyrrolidone (PVPP)-precipitated tannin-free Miang extracts in growth-inhibition of the cariogenic Streptococcus mutans DMST 18777 and its biofilms was also evaluated. The tannin-rich fermented extracts had the best bacterial growth inhibition against S. mutans DMST 18777 with an MIC of 0.29 and 0.72 mg/mL for nonfilamentous fungi (NFP) Miang and filamentous-fungi-processed (FFP) Miang respectively. This observed anti-streptococcal activity still remained after PVPP-mediated precipitation of bioactive tannins especially, in NFP and FFP Miang. Characterization of the PVPP-treated extracts using High performance liquid chromatography quadrupole-time of flight-mass spectrometry (HPLC-QToF-MS) analysis, also offered an insight into probable compound classes responsible for the activities. In addition, Crystal violet-staining also showed better IC50 values for NFP Miang (4.30 ± 0.66 mg/mL) and FFP Miang (12.73 ± 0.11 mg/mL) against S. mutans DMST 18777 biofilms in vitro. Homology modeling and molecular docking analysis using HPLC-MS identified ligands in tannin-free Miang supernatants, was performed against modelled S. mutans DMST 18777 sortase A enzyme. The in silico analysis suggested that the inhibition by NFP and FFP Miang might be attributed to the presence of ellagic acid, flavonoid aglycones, and glycosides. Thus, these Miang extracts could be optimized and explored as natural active pharmaceutical ingredients (NAPIs) for applications in oral hygienic products.

BackgroundWorkers are exposed to workplace hazards which increase their risk of occupational injury. Data on occupational injuries and associated factors are important for planning and informing national policy regarding workplace health and safety. This study sought to estimate the prevalence and factors associated with occupational injuries among workers in an industrial city in Ghana.MethodsA community-based cross-sectional survey was conducted among 459 workers in the Tema industrial enclave in Ghana from 22nd December 2020 to 27th February 2021. Participants were recruited using a two-stage sampling technique. Eight communities were randomly selected from twenty-five communities in the first stage while households in each community were randomly selected in the second stage. Data on socio-demographic characteristics, occupational health and safety and occupational injuries were collected. Logistic regression was used to examine the relationship between occupational injuries and associated factors.ResultsThe mean age of the workers was 33.9 (±6.8) years with a range of 21-53 while over 18.1% of them were working at the Port and Harbour. The prevalence of occupational injury among the workers in the preceding twelve months was 64.7%. The mechanism of injury was mainly the use of working tools (45.8%) and hot surfaces, substances or chemicals (14.1%). Being a casual staff (AOR: 2.26, 95%CI: 1.04-4.92), working at Port and Harbour (AOR: 3.77, 95%CI: 1.70-8.39), no health and safety training (AOR: 2.18, 95%CI: 1.08-4.39), dissatisfaction with health and safety measures (AOR: 4.31, 95%CI: 2.12-8.78) and tertiary education (AOR: 0.03, 95%CI: 0.01-0.10) were significantly associated with occupational injuries.ConclusionThe prevalence of occupational injuries in this study was high. Promoting machine tools' safety, health and safety training, and satisfaction with health and safety measures through rewarding workers who do not sustain injuries could be key to employees' health and safety.

Bovine babesiosis has substantial economic implications in the cattle industry, emphasizing the need for a thorough understanding of the genetic diversity of the causative apicomplexan pathogen. Although babesiosis has been extensively studied globally, the genetic diversity of Babesia species in Malaysian and Nigerian cattle remains unreported. This study aims to bridge this gap by detecting and characterizing Babesia species in selected cattle herds. Our investigation explores the genetic diversity of Babesia species in cattle from Selangor, Malaysia, and Ribah, Nigeria. Blood samples revealed a 32.9% infection rate via PCR analysis. Further genetic analysis detected variations in Malaysian Babesia bigemina isolates but genetic similarity among Nigerian isolates. Conversely, all Babesia bovis isolates displayed genetic homogeneity. In summary, this research identifies genetic diversity in Babesia species affecting Malaysian and Nigerian cattle, highlighting regional disparities.

Abstract Background and Aims Antimicrobial resistance (AMR), a global health crisis of mounting urgency, has been further complicated by the ongoing COVID‐19 pandemic. The intricate relationship between these two phenomena is especially pronounced in low‐ and middle‐income countries (LMICs) due to the distinct obstacles encountered by their healthcare systems and policy structures. This study aims to explore the complex challenges arising from the coexistence of these two crises in LMICs and proffer specific recommendations for holistic management. Methods An exhaustive bibliographic survey was executed, employing search queries in specialized databases such as PubMed, SCOPUS, and Web of Science's SCI‐EXPANDED index. The timeframe for the literature search extended from January 2020 to January 2023. The search strategy employed key terms including antibiotic resistance, AMR, COVID‐19 pandemic, low‐ and middle‐income countries, SARS‐CoV‐2, and LMICs. Results The pandemic has aggravated various drivers of AMR in LMICs, including limited capabilities, weak frameworks, and socioeconomic factors. New challenges have emerged, such as disruptions in the antibiotic supply chain and an increased risk of healthcare‐associated infections. The interaction between these drivers presents a complex problem that demands a coordinated response. Specific recommendations include strengthening health systems, funding research and innovation, and enhancing infection prevention control measures. Conclusion The coexistence of AMR and the COVID‐19 pandemic in LMICs demands an integrated approach involving multiple stakeholders. Emphasis must be placed on constructing aligned regulatory frameworks, nurturing regional collaborations, and focusing on accessible therapeutic options. The study underscores the necessity for actionable strategies to achieve sustainable access to clean water and sanitation and also highlights the importance of long‐term planning, funding, and specialized expertise in emerging modalities like phage therapy.

Abstract In this numerical investigation, completely developed laminar convective heat transfer characteristics of a Williamson hybrid ferronanofluid over a cylindrical surface are reported. This new model in 2D is engaged to examine the effects of the magnetic field, thermal radiation factor, volume fraction of ultrafine particles, and Weissenberg number with the help of the Keller box method. The numerical calculations are implemented at a magnetic parameter range of 0.4 to 0.8, volume fraction range of 0.0 to 0.1, and a Weissenberg number range of 0.1 to 0.8. The numerical outcomes concluded that the velocity increases when the thermal radiation parameter and the volume fraction of a nanoparticle are increased, but inverse impacts are obtained for the magnetic parameter and the Weissenberg number. The rate of energy transport increases with increasing thermal radiation and volume fraction, while it declines with increasing the magnetic parameter and Weissenberg number. The drag force shows a positive relationship with the thermal radiation parameter and has an opposite relationship with the Weissenberg number and the magnetic parameter. Furthermore, even when the magnetic field, thermal radiation, volume fraction, and Weissenberg number are all present, the heat transfer rate of Williamson hybrid ferronanofluid is greater than that of mono Williamson ferronanofluid.

Background: Thyroid disease and type 2 diabetes mellitus (T2DM) are interconnected endocrine disorders with a bidirectional relationship. T2DM patients may present with various thyroid abnormalities, such as gland enlargement and nodule formation, warranting noninvasive assessment through ultrasound scanning. Aim: This cross-sectional study aimed to evaluate thyroid gland volume (TGV) in adult patients with T2DM using ultrasound imaging in Kano. Materials and Methods: A total of 160 participants were randomly selected and underwent sonographic scans of the thyroid gland using a medical ultrasound machine with a 7.5 MHz linear probe. Thyroid volumes were recorded, and demographic information was collected. Statistical analysis was performed using the SPSS software version 29, with significance set at P < 0.05. Results: The mean TGV ± standard deviation was 5.8 ± 3.1 cm3. Females exhibited a statistically higher TGV (6.1 ± 3.4 cm3) compared to males (5.6 ± 2.8 cm3). There was no significant difference in TGV among patients with different diabetes control habits. The mean volume of the right lobe (3.1 ± 1.8 cm3) was significantly greater than that of the left lobe (2.7 ± 1.6 cm3). TGV correlated positively with T2DM duration, age, weight, and body mass index. Conclusion: This study provides valuable insights into the TGV among patients with T2DM in Kano. The findings indicate a positive correlation between TGV and T2DM duration and demonstrate gender and laterality differences. Ultrasound-based assessment of thyroid volume can be a valuable tool in monitoring thyroid health in T2DM patients and may aid in the early detection and management of thyroid abnormalities.

Abstract We previously found that QNBC tumors are more frequent in African Americans compared to TNBC tumors. To characterize this subtype further, we sought to determine the miRNA–mRNA profile in QNBC patients based on race. Both miRNA and mRNA expression data were analyzed from TCGA and validated using datasets from the METABRIC, TCGA proteomic, and survival analysis by KMPLOT. miRNA–mRNAs which include FOXA1 and MYC (mir-17/20a targets); GATA3 and CCNG2 (mir-135b targets); CDKN2A, CDK6, and B7-H3 (mir-29c targets); and RUNX3, KLF5, IL1-β, and CTNNB1 (mir-375 targets) were correlated with basal-like and immune subtypes in QNBC patients and associated with a worse survival. Thus, QNBC tumors have an altered gene signature implicated in racial disparity and poor survival.

Nigeria had a confirmed case of COVID-19 on February 28, 2020. On March 17, 2020, the Nigerian Government inaugurated the Presidential Task Force (PTF) on COVID-19 to coordinate the country’s multisectoral intergovernmental response. The PTF developed the National COVID-19 Multisectoral Pandemic Response Plan as the blueprint for implementing the response plans. The PTF provided funding, coordination, and governance for the public health response and executed resource mobilization and social welfare support, establishing the framework for containment measures and economic reopening. Despite the challenges of a weak healthcare infrastructure, staff shortages, logistic issues, commodity shortages, currency devaluation, and varying state government cooperation, high-level multisectoral PTF coordination contributed to minimizing the effects of the pandemic through early implementation of mitigation efforts, supported by a strong collaborative partnership with bilateral, multilateral, and private-sector organizations. We describe the lessons learned from the PTF COVID-19 for future multisectoral public health response.

Background Although different educational interventions have been widely used to manage and treat hypertension, alone or in combination with other interventions, there is a significant variation in their claimed effectiveness.Review question/objective The objective of this umbrella review is to determine the effectiveness of educational interventions, alone or in combination with other interventions, for improving blood pressure control and self-management practices among hypertensive patients. The review question is: Do educational interventions, alone or in combination with other interventions, improve self-management practices among patients with hypertension?Methods We will conduct a review of systematic reviews involving studies that implemented educational interventions, alone or in combination with other interventions, designed to change self-care practices among hypertensive patients who are 18 years and above, regardless of their sex and ethnicity. Following the guidelines set forth in the Preferred Reporting Items for Systematic Review and Meta-Analysis statement, a comprehensive literature search will be conducted from September to December 2023 on six electronic databases: MEDLINE, Embase, PsycINFO, CINAHL, Web of Science Core Collection and Google Scholar. Search terms will be developed using database-specific indexed terms and text words derived from the review aim. We will present the effects of the educational interventions, alone or in combination with other interventions, on hypertension self-management practices. We will report the outcome data with 95% CIs for each study. Relative risk, mean differences or ORs will be used, depending on the measuring indices in each study.Ethics and dissemination Ethical approval is not required as this study will use aggregated data from previously published systematic reviews. However, we have registered the protocol in PROSPERO. We confirm that all methods will be performed following the guidelines of the Declaration of Helsinki. The findings from this study will be disseminated through presentations at academic conferences and publication in peer-reviewed international journals.PROSPERO registration number CRD42022375581.

Abstract Background Capacity strengthening initiatives aimed at increasing research knowledge and skills of investigators in low- and middle-income countries (LMICs) have been implemented over the last several decades. With increased capacity, local investigators will have greater leadership in defining research priorities and impact policy change to help improve health outcomes. Evaluations of models of capacity strengthening programs are often limited to short-term impact. Noting the limitations of traditional output-based evaluations, we utilized a broader framework to evaluate the long-term impact of the Vanderbilt Institute in Research Development and Ethics (VIRDE), a decade-old intensive grant development practicum specifically tailored for investigators from LMICs. Methods To assess the impact of VIRDE on the research careers of alumni over the past 10 years, we surveyed alumni on research engagement, grant productivity, career trajectory, and knowledge gained in grant writing. Descriptive statistics, including means and total counts, and paired sample t-tests were used to analyze the data. Results Forty-six of 58 alumni completed the survey. All respondents returned to their home countries and are currently engaged in research. Post-VIRDE grant writing knowledge ratings were significantly greater than pre-VIRDE. The number of respondents submitting grants post-VIRDE was 2.6 times higher than before the program. Eighty-three percent of respondents submitted a total of 147 grants post-VIRDE, of which 45.6% were awarded. Respondents acknowledged VIRDE’s positive impact on career growth and leadership, with 88% advancing in career stage. Conclusions Gains in grant writing knowledge and grant productivity suggest that VIRDE scholars built skills and confidence in grant writing during the program. A substantial proportion of respondents have advanced in their careers and continue to work in academia in their country of origin. Results show a sustained impact on the research careers of VIRDE alumni. The broader framework for research capacity strengthening resulted in an expansive assessment of the VIRDE program and alumni, illuminating successful program elements and implications that can inform similar capacity strengthening programs.

Background: Tissue biopsy is an established method of diagnosis which helps in establishing the various types of lesions. However, contrasting findings may exist depending on facility, personnel available, and geographical region. Aim: To carry out a six-year audit of oral lesions diagnosed through histopathology in our institution. Materials and Methods: This was a retrospective review of all histopathologically diagnosed oral lesions within a six-year period. Information retrieved from the patients' record and analyzed were age, sex, occupation, site, and histological diagnosis. Descriptive statistics of frequency, percentage, mean, and standard deviation were presented. Results: Two hundred and forty-two oral biopsies consisting of 130 females and 112 males were performed during the study period. Patients age ranged from 1 to 82 years with a mean of 30.2 ± 17.6 years. Lesions were mostly located on the mandible and were mainly benign in nature. The most common benign lesion was ameloblastoma, whereas the most common malignant lesion was squamous cell carcinoma. Conclusion: The prevalence and pattern of presentation of oral lesions in our center are similar to the previous reports from Nigeria and other parts of the world. There is a need to increase the awareness about oral health and availability of oral histopathological services in our center to improve utilization.

Background: Asthma is a chronic inflammatory disease of the airways. There is increasing international interests in the role of nutrition in asthma control. Objectives: This study was carried out to determine the nutritional status of children with asthma using the World Health Organization (WHO) growth reference charts for height, weight, and body mass index (BMI) for age and to determine the relationship if any between nutritional status and frequency of acute asthmatic exacerbations. Materials and Methods: It was a descriptive cross-sectional study of children aged 6–17 years with asthma attending the pediatric respiratory clinic of a tertiary hospital from October 2017 to March 2019. All the values obtained were interpreted using the WHO reference growth charts z-scores. Results: A total of 71 children participated in the study. The study showed that 94% of the children with asthma were of normal height with 2.6% stunted and 2.6% severely stunted. There was no significant association between the height and the frequency of acute exacerbation. About 65% of the children had normal BMI. Those that were wasted/severely wasted were 19.7%, whereas 15.5% were overweight/at risk of overweight. There was no significant association between the BMI and the frequency of acute exacerbations (P > 0.05). The odds of having more frequent exacerbations in children with either above normal or below normal BMI were 1.05 (0.11–10.44) and 0.81 (0.08–7.88), respectively. Conclusion: Majority of the children with asthma were of normal height. Despite the fact that there were more children who were wasted/severely wasted than overweight/risk of overweight, these findings were not significantly associated with more frequent acute exacerbations.

Purpose/Aims: This research aimed to study the profile, perceptions, barriers, and predictors of Nigerian resident doctors' level of engagement in scientific research. Methods: This study was a descriptive cross-sectional quantitative survey of 438 resident doctors in Nigeria. This study forms a part of the big CHARTING Study, the protocol of which was published in “Nigeria Journal of Medicine 2019;28:198-205.” Results: Three hundred and eighteen (72.8%) respondents were male and 119 (27.2%) were female. There were 229 (52.4%) registrars and 208 (47.6%) senior registrars, while residents in surgical versus nonsurgical specialties were 190 (44.5%) and 237 (55.5%), respectively. Three hundred and sixty-eight (85%) respondents had participated previously in research; 67 (15.6%) and 72 (16.6%) had their papers published in local or international journals, respectively; and only 46 (10.6%) had held first authorship positions in peer-reviewed journal publications. The significant barriers to research identified among them included lack of funding, lack of free time, inadequate training/knowledge on research methodology, and the onerous nature of clinical research. The independent predictor of previous engagement with research was years on current job (P = 0.007). This was similar to finding for the first authorship of a peer-reviewed article among the respondents (0.017). Conclusion: This study concludes that publication and grantsmanship rates were very low among the surveyed resident doctors, despite their high rate of engagement in research projects. There is a need for increased research capacity building among resident doctors in Nigeria.

Background: The shift in caries burden from children to adults and its rise among this population necessitates epidemiological studies to provide data on the trend and modifiable factors. Aim: This study aimed to determine prevalence of untreated caries, its contribution to caries experience, and related factors among WHO-recommended adult age groups. Patients, Materials and Methods: A cross-sectional study was conducted over a six-month period in 2021 among 451 adults recruited from a patient population in Northeast Nigeria. Sociodemographic characteristics and oral health practices were recorded. Intraoral assessment for untreated caries, filled, and missing teeth were carried out according to the WHO criteria. Data analysis included logistic regression to produce a model for predictive risk for caries, with emphasis on the WHO recommended adult age groups. Results: The prevalence of untreated caries (81.6%) was significantly (P < 0.05) related to age, occupation, education, dental visits, snacking, and toothbrushing frequency. It accounted for 65.7% of the overall decayed, missing, and filled teeth score (3.35 ± 3.00) and was significantly higher for participants

Background: Insertion of laryngeal mask airway (LMA) with propofol in children may cause hypotension, laryngospasm and apnoea. Ketamine and fentanyl have been combined separately with propofol to prevent depression of cardiovascular system during LMA insertion, especially in paediatric patients. Ketamine-fentanyl and propofol-fentanyl combinations have analgesic effect, prevent coughing and apnoea and regarded as agents of choice for LMA insertions. However, the cardiovascular effects of the two admixtures for LMA insertions have not been fully assessed in children. We compared the haemodynamic effects of ketamine-fentanyl and propofol-fentanyl combinations for LMA insertion in paediatric patients who underwent herniotomy in our facility. Patients and Methods: This comparative study was conducted on 80 children aged 1–15 years, ASA physical Statuses I and II, who had herniotomy under general anaesthesia. The patients were randomised into two groups (A and B) of 40 patients each and LMA was inserted following administrations of the two different drug combinations. Patients in Group A received pre-mixed ketamine 2 mg/kg and fentanyl 2 μg/kg while the patients in Group B received pre-mixed propofol 2.5 mg/kg and fentanyl 2 μg/kg. The blood pressure and incidence of apnoea were determined in the two groups during and after the LMA insertion. Results: The haemodynamic states of the patients were not comparable statistically as the heart rate, systolic, diastolic and mean arterial blood pressure were significantly higher and stable in the ketamine-fentanyl group than the propofol-fentanyl group (P < 0.05). The incidence of apnoea was significantly lower in the ketamine-fentanyl group compared with propofol-fentanyl group (P = 0.045), but post-anaesthesia discharge scores were similar, with no significant difference in both groups (P = 0.241). Conclusion: The use of ketamine-fentanyl combination for LMA insertion in paediatric patients was associated with better haemodynamic changes and lower incidence of apnoea when compared with propofol-fentanyl combination.

Background: Sleep deprivation and disruptions are associated with both psychological and physiological disorders. Medical students have an increased risk for sleep deprivation. This study aimed to determine the quality of sleep among clinical medical students of Bayero University Kano (BUK). Materials and Methods: This is a cross-sectional study that was conducted between February and March 2019 among clinical students of BUK. The data were obtained using sociodemographic questionnaire as well as the Pittsburgh Sleep Quality Index (PSQI) and Epworth Sleepiness Scale (ESS) self-administered questionnaires. Two hundred questionnaires were administered to the students in their 4th, 5th, and 6th academic year. SPSS version 20 was used for the statistical analysis of the data collected. Results: A total of 181 questionnaires were completed out of the 200 that were administered, making a response rate of 90.5%. There were 114 males (63%) and 67 females (37%), giving a male-to-female ratio of 1.7:1, which is in keeping with the gender distribution of the students. The mean age (± standard deviation) of the students was 23.8 ± 2.9 years. The overall poor sleep quality was found to be 53.0% based on the PSQI, whereas the overall excessive daytime sleepiness was found to be 38.3% using the ESS. Poor sleep quality was found to be 61.1%, 51.7%, and 42.9% among the students in the 4th, 5th, and 6th academic years, respectively (P = 0.14). Excessive daytime sleepiness was found to be 45.8%, 41.7%, and 22.9% among the students in the 4th, 5th, and 6th academic years, respectively (P = 0.03). Conclusion: The prevalence of poor sleep quality is high among the clinical students of BUK.

BackgroundReports from various parts of the world suggest that the COVID-19 pandemic may have severe adverse effects on the delivery and uptake of reproductive health, maternal, neonatal, and child health (RMNCH) services. The objective of the study was to explore women's experiences with utilization of RMNCH services during the COVID-19 pandemic in Nigeria, and to elicit their perceptions on ways to sustain effective service delivery during the pandemic.MethodsA cross-sectional survey of 2930 women using primary health care facilities for antenatal, delivery, postnatal, and child care services before and after the onset of the pandemic in 10 States of Nigeria were interviewed with a semi-structured questionnaire. Data were collected on women's socio-demographic characteristics and pregnancy histories, the services they sought before and after the pandemic, the challenges they faced in accessing the services, their use of alternative sources of health care, and their recommendations on ways to sustain RMNCH service delivery during the pandemic. The data were analyzed with descriptive statistics, and multivariable logistic regression using SPSS 20.0. All the statistical analyses were two-tailed with a 95% confidence interval, and the p-value was set at 0.05.ResultsThe logistic regression results showed that women were at least 56% more likely to report that they used family planning, antenatal, and delivery services before the pandemic than after the pandemic started, but 38% less likely to report use of postnatal services. The experience of difficulty accessing RMNCH services was 23% more likely after the pandemic started than before the pandemic. Three categories of recommendations made by the respondents on measures to sustain RMNCH delivery during the pandemic included 1) facility improvement, and staff recruitment and re-training; 2) free and readily accessible PHC services, and 3) the provision of social safety nets including transportation and palliatives.ConclusionWe conclude that the COVID-19 pandemic limited women's access to antenatal, delivery, and childcare services offered in PHCs in Nigeria. Addressing the recommendations and the concerns raised by women will help to sustain the delivery of RMNCH services during the COVID-19 pandemic and future epidemics or health emergencies in Nigeria.

BackgroundWith stagnating funding for HIV and AIDS control programs in Nigeria, alternative funding models for antiretroviral therapy (ART) including out of pocket payment are being considered to sustain momentum epidemic control targets. We assessed willingness to pay for ART related services, and factors associated with willingness to pay.MethodsBetween July and August 2019, we conducted a survey among people living with HIV (PLHIV) on ART in 3 states in southern Nigeria. Randomly sampled respondents on ART for at least 6 months, aged ≥ 18 years, able to communicate in English or pidgin English, and consenting to the survey were enrolled. Respondents were asked if they were willing to pay for clinical consultation, antiretroviral drugs (ARVs), viral load testing services and premium ART services (including fast track services). Respondents indicating willingness to pay for any of these services were asked the maximum amount they were willing to pay using contingent valuation methodology. We assessed the weighted proportions of PLHIV on ART willing to pay for ART and used survey-featured logistic regression measures to assess sociodemographic and ART related factors associated with willingness to pay for ART services.ResultsOverall, 1,598 PLHIV with a mean age of 39.03 years (standard deviation [SD]: 11.23 years), were included in this analysis. Of these, 65.8% (1,079), 73.9% (1,192), 61.0% (995) and 33.6% (472) were willing to pay for ART consultation, ARVs, viral load testing services and premium ART services respectively. The median maximum amount PLHIV were willing to pay for clinical consultation and for ARVs was NGN1,000 (USD equivalent of $2.78; interquartile range [IQR]: 500-2,000) respectively, and NGN2,500 (USD equivalent of $6.94; IQR: NGN1,000-5,000) and NGN2,000 (USD equivalent of $5.56; IQR: NGN1,000-3,000) for viral load testing and premium ART services respectively. Receiving ART in Lagos state, being employed and having a monthly income of NGN100,000 or more was associated with willingness to pay for the various ART services.ConclusionWe found generally high-level of willingness to pay for ART consultation, ARVs and viral load testing services but low willingness to pay for premium ART services among PLHIV on ART. The maximum amount PLHIV were willing to pay for various ART services fell short of benchmarks for alternative funding but can potentially supplement ART by funding differentiated service delivery models that require nominal amounts to facilitate person-centered differentiated service delivery models.

BackgroundRegular evaluation of caesarean section (CS) is required due to their rising trend and outcomes. Many women recently opt for elective CS, even in resource-constrained settings. Data evaluating the outcomes of CS is however sparse. Hence, this study sought to determine the rate of fetal mortalities and their determinants following CS in the Tatale District Hospital of the Northern Region, Ghana.MethodsA retrospective cross-sectional study was employed to analyze the medical records of 275 women who underwent CS from 2019 to 2021. Data were collected from the hospital's record of CS cases from 2019 to 2021. Descriptive statistics were used to summarize the data and Pearson's chi-square/Fisher's exact test was used to examine the relationship between maternal and obstetric characteristics and fetal mortality. At a 95% confidence interval (95% CI), logistic regression was fitted to assess significant variables and reported the results using odds ratio.ResultsOf 1667 deliveries, 16.5% of the mothers gave birth by CS. A fetal mortality rate of 76.4 per 1000 total births was recorded following CS. Babies born with low Appearance, Pulse, Grimace, Activity and Respiration (APGAR) scores (0-3) at fifth-minute had an increased risk of fetal mortality (AOR = 523.19, 95%CI: 49.24-5559.37, p = ConclusionOverall, this study found a high rate of CS based on the World Health Organization's recommended CS rate. Interventions such as reducing the waiting time for surgery and early diagnosis of the need for CS, and ensuring the availability of modern equipment to resuscitate infants with low APGAR scores can significantly improve fetal outcomes following CS.