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1.
Community Health Equity Res Policy ; : 2752535X231221594, 2023 Dec 12.
Artigo em Inglês | MEDLINE | ID: mdl-38086749

RESUMO

In Bauchi State, northern Nigeria, communities recognise short birth interval (kunika in the Hausa language) as harmful, but family planning is a sensitive topic. This paper describes the development of a culturally safe way to communicate about kunika in a conservative Muslim setting. The objective was to co-design culturally safe communication material, based on local knowledge about short birth interval, to share with women and men in households.Six community co-design groups of women and six of men (total 96 participants) reviewed summaries of their previously created maps of perceived local causes of kunika, categorised as frequent sex, family dynamics and non-use of contraception. They advised how these causes could be discussed effectively and acceptably with women and their husbands in households and suggested storylines for three short video docudramas about the prevention of kunika. The research team created the docudramas with a local producer and fieldworkers piloted their use in households.The design groups advised that communication materials should focus on child spacing rather than on limitation of family size. Even sensitive issues could be covered. People would not change their sexual behaviour but could be advised to use contraceptives to prevent kunika. The groups approved the final videos and six focus groups of visited women and men reported they were acceptable and helpful. Community co-design of communication about kunika was feasible and led to videos about a sensitive topic that were acceptable to ordinary men and women in communities in Bauchi.

2.
J Infect Dis ; 2023 Sep 22.
Artigo em Inglês | MEDLINE | ID: mdl-37739781

RESUMO

In 2016, World Health Organization (WHO) introduced global targets for the care and management of hepatitis C virus (HCV) infection to eliminate hepatitis C as a public health threat by 2030. Despite significant improvements in testing and treatment, in 2020 only 23% of all persons infected with HCV globally were diagnosed. We explore examples from global hepatitis C programs in Georgia, Rwanda, and Nigeria that have used decentralized and integrated models to increase access to HCV testing. Georgia established the world's first national hepatitis C elimination program in 2015. In 2022, 2.6 million people (80% of the adults) have been screened for antibodies for HCV infection, and 80,000 persons with HCV virus detected were treated. To achieve these results, Georgia implemented HCV core antigen (HCVcAg) testing, utilization of point-of-care HCV RNA, and simplification of HCV viremia detection by qualitative HCV RNA. Rwanda was the first country in sub-Saharan Africa to commit to HCV elimination in 2018, and as of 2022 it has achieved its screening target of 7 million people and initiated approximately 60,000 patients on hepatitis C treatment by rapid decentralization and integration of HCV services. In Nigeria, the integrated near-point-of-care testing approach in Nasarawa state has been effective in expanding access to HCV viremia testing and enabling the possibility of same-day testing and treatment initiation. Examples of decentralization and integration of HCV testing and linkage to care in Georgia, Rwanda and Nigeria could help inform effective strategies to reach 2030 hepatitis C elimination goals in other countries.

3.
Environ Sci Pollut Res Int ; 29(35): 52818-52832, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35274204

RESUMO

This paper investigates the short-term dynamics as well as the long-term relationship between natural gas consumption and economic growth in Nigeria, taking breaks into account. The techniques employed include Shahbaz-Omay-Roubaud unit root test with sharp and smooth breaks and autoregressive distributed lag (ARDL) model with breaks. The results revealed that natural gas consumption is positively related to growth both in the short-term and long-term but only significant in the latter. However, there is evidence of bidirectional causality in the long-term and unidirectional causality in the short-term, from growth to natural gas consumption. The implication of the findings is that natural gas is a contributing factor to the growth of the Nigerian economy, and any energy policy aimed at increasing the consumption of natural gas could lead to the increase in economic growth and that Nigerian authorities could adopt energy conservation policies in the short-term so as to take the issue of global warming into consideration. Therefore, the paper recommends stepping up efforts to increase natural gas consumption by building more gas storage facilities, pipeline installations, exploring alternative energy sources, raising awareness/enlightenment about the uses of natural gas, suitability in its use, economic and environmental benefits of its use, ensuring its affordable availability, and beeping up security against pipelines vandalization. Moreover, in the short-term, the country could enact energy conservation policies to combat global warming.


Assuntos
Desenvolvimento Econômico , Gás Natural , Dióxido de Carbono/análise , Fontes Geradoras de Energia , Nigéria
4.
J Glob Health ; 12: 04003, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35136595

RESUMO

BACKGROUND: The World Health Organization recommends increased male involvement to improve maternal and newborn health in low- and middle-income countries, but few studies have measured the impact of male-engagement interventions on targeted men. A trial of universal home visits to pregnant women and their spouses in Nigeria improved maternal and child health outcomes. This analysis examines the impact of the visits on male spouses. METHODS: In Toro Local Government Area in Bauchi State, Nigeria, we randomly allocated eight wards into four waves, beginning the intervention at one-year intervals. The intervention comprised two-monthly evidence-based home visits to discuss local risk factors for maternal and child health with all pregnant women and their male spouses. Measured secondary outcomes of the intervention in the men included knowledge about danger signs in pregnancy and childbirth, beliefs about heavy work in pregnancy, discussion with their wives about pregnancy and childbirth, knowledge about causes and intentions about management of childhood diarrhoea, and views about childhood immunisation. The analysis compared outcomes between men in visited wards (intervention group) and pre-intervention wards (control group), using a cluster t test. Generalised linear mixed modelling accounted for the effect of socio-economic differences on the measured impact. RESULTS: The analysis included 6931 men in the intervention group and 9434 in the control group. More men in the intervention group knew four or more danger signs in pregnancy (risk difference (RD) = 0.186, 95% confidence interval (CI) = 0.044 to 0.327), and three danger signs in childbirth (RD = 0.091, 95%CI = 0.013 to 0.170), thought pregnant women should reduce heavy work before the third trimester (RD = 0.088, 95% CI = 0.015 to 0.162), and had discussed pregnancy and childbirth with their spouse (RD = 0.157, 95% CI = 0.026 to 0.288). More knew correct management of childhood diarrhoea with fluids and feeding (RD = 0.300, 95% CI = 0.203 to 0.397) and less would give a child medicine to stop diarrhoea (RD = 0.206, 95% CI = 0.125 to 0.287). Socio-economic differences did not explain the effect of the intervention on any of the outcomes. CONCLUSION: Universal home visits improved knowledge of male spouses about maternal and child health, which could contribute to improved maternal and child outcomes. TRIAL REGISTRATION: ISRCTN, ISRCTN82954580. 11 August 2017. Retrospectively registered. http://www.isrctn.com/ISRCTN82954580.


Assuntos
Saúde da Criança , Visita Domiciliar , Atitude , Criança , Feminino , Humanos , Recém-Nascido , Masculino , Nigéria , Parto , Gravidez
5.
BMC Health Serv Res ; 21(1): 1085, 2021 Oct 12.
Artigo em Inglês | MEDLINE | ID: mdl-34641865

RESUMO

BACKGROUND: Nigeria is the second biggest contributor to global child mortality. Infectious diseases continue to be major killers. In Bauchi State, Nigeria, a stepped wedge cluster randomised controlled trial tested the health impacts of universal home visits to pregnant women and their spouses. We present here the findings related to early child health. METHODS: The home visits took place in eight wards in Toro Local Government Authority, randomly allocated into four waves with a delay of 1 year between waves. Female and male home visitors visited all pregnant women and their spouses every 2 months during pregnancy, with a follow up visit 12-18 months after the birth. They presented and discussed evidence about household prevention and management of diarrhoea and immunisation. We compared outcomes among children 12-18 months old born to mothers visited during the first year of intervention in each wave (intervention group) with those among children 12-18 months old pre-intervention in subsequent waves (control group). Primary outcomes included prevalence and management of childhood diarrhoea and immunisation status, with intermediate outcomes of household knowledge and actions. Generalised Estimating Equations (GEE), with an exchangeable correlation matrix and ward as cluster, tested the significance of differences in outcomes. RESULTS: The analysis included 1796 intervention and 5109 control children. In GEE models including other characteristics of the children, intervention children were less likely to have suffered diarrhoea in the last 15 days (Odds Ratio (OR) 0.40, 95% confidence interval (CI) 0.30-0.53) and more likely to have received increased fluids and continued feeding in their last episode of diarrhoea (OR 6.06, 95% CI 2.58-14.20). Mothers of intervention children were more likely to identify lack of hygiene as a cause of diarrhoea (OR 2.24, 95% CI 1.27-3.95) and their households had better observed hygiene (OR 3.29, 95% CI 1.45-7.45). Intervention children were only slightly more likely to be fully immunised (OR 1.67, 95% CI 0.78-3.57). CONCLUSIONS: Evidence-based home visits to both parents stimulated household actions that improved prevention and management of childhood diarrhoea. Such visits could help to improve child health even in settings with poor access to quality health services. TRIAL REGISTRATION: ISRCTN82954580 . Date: 11/08/2017. Retrospectively registered.


Assuntos
Saúde da Criança , Visita Domiciliar , Criança , Características da Família , Feminino , Humanos , Lactente , Masculino , Nigéria/epidemiologia , Parto , Gravidez
6.
Methods Protoc ; 4(3)2021 Jun 29.
Artigo em Inglês | MEDLINE | ID: mdl-34209527

RESUMO

Laser diffraction spectrometry allows for efficiently obtaining high-resolution grain size data. However, pretreatment and dispersion of aggregates in sediment samples are essential pre-requisites for acquiring accurate results using this method. This study evaluates the effectiveness of five dispersing agents in deflocculating the investigated fluvial sediments and the resulting grain size distribution obtained by laser diffraction spectrometry. We also examine the ability of the different dispersing agents to deflocculate sediment samples treated by thermal combustion. Distilled water presented a low efficiency in deflocculating the samples and yielded a near-zero clay content for samples with an expected clay content. The other chemical dispersants were effective in dispersing aggregates and yielding clay, albeit with different efficiencies. Calgon had the highest dispersing ability, followed closely by sodium tripolyphosphate. The performance of chemical treatment with sodium oxalate approaches that of sodium tripolyphosphate. However, it leads to the formation of precipitates in the samples, obscuring the actual grain size data. Sodium pyrophosphate derived the least amount of deflocculation among the four chemical dispersants. Furthermore, all the chemical dispersants were found to be ineffective in dispersing aggregates in samples treated by thermal combustion.

7.
Reprod Health ; 18(1): 74, 2021 Apr 06.
Artigo em Inglês | MEDLINE | ID: mdl-33823874

RESUMO

BACKGROUND: Short birth intervals, defined by the World Health Organization as less than 33 months, may damage the health and wellbeing of children, mothers, and their families. People in northern Nigeria recognise many adverse effects of short birth interval (kunika in the Hausa language) but it remains common. We used fuzzy cognitive mapping to systematize local knowledge of causes of kunika to inform the co-design of culturally safe strategies to address it. METHODS: Male and female groups in twelve communities built 48 maps of causes and protective factors for kunika, and government officers from the Local Government Area (LGA) and State made four maps. Each map showed causes of kunika or no-kunika, with arrows showing relationships with the outcome and between causes. Participants assigned weights for the perceived strength of relationships between 5 (strongest) and 1 (weakest). We combined maps for each group: men, women, and government officers. Fuzzy transitive closure calculated the maximum influence of each factor on the outcome, taking account of all relationships in the map. To condense the maps, we grouped individual factors into broader categories and calculated the cumulative net influence of each category. We made further summarised maps and presented these to the community mapping groups to review. RESULTS: The community maps identified frequent sex, not using modern or traditional contraception, and family dynamics (such as competition between wives) as the most influential causes of kunika. Women identified forced sex and men highlighted lack of awareness about contraception and fear of side effects as important causes of kunika. Lack of male involvement featured in women's maps of causes and in the maps from LGA and State levels. Maps of protective factors largely mirrored those of the causes. Community groups readily appreciated and approved the summary maps resulting from the analysis. CONCLUSIONS: The maps showed how kunika results from a complex network of interacting factors, with culture-specific dynamics. Simply promoting contraception alone is unlikely to be enough to reduce kunika. Outputs from transitive closure analysis can be made accessible to ordinary stakeholders, allowing their meaningful participation in interpretation and use of the findings. For people in Bauchi State, northern Nigeria, kunika describes a short interval between successive births, understood as becoming pregnant again before the previous child is weaned. They recognise it is bad for children, mothers and households. We worked with 12 communities in Bauchi to map their knowledge of the causes and protective factors for kunika. Separate groups of men and women built 48 maps, and government officers at local and state level built four maps. Each group drew two maps showing causes of kunika or of no-kunika with arrows showing the links between causes and the outcome. Participants marked the strength of each link with a number (between 5 for the strongest and 1 for the weakest). We combined maps for women, men and government officers. We grouped similar causes together into broader categories. We calculated the overall influence of each category on kunika or no-kunika and produced summary maps to communicate findings. The maps identified the strongest causes of kunika as frequent sex, not using modern or traditional contraception, and family dynamics. Women indicated forced sex as an important cause, but men focused on lack of awareness about contraception and fear of side effects. The maps of protective factors mirrored those of the causes. The groups who created the maps approved the summary maps. The maps showed the complex causes of kunika in Bauchi. Promoting contraception is unlikely to be enough on its own to reduce kunika. The summary maps will help local stakeholders to co-design culturally safe ways of reducing kunika.


ANTECEDENTES: Los intervalos intergenésicos cortos (menores de 33 meses, según la OMS) afectan la salud y el bienestar de la madre, el niño y la familia. Aunque los habitantes del norte de Nigeria reconocen muchos efectos adversos de un intervalo intergenésico corto (kunika en lengua hausa), éstos aún son frecuentes. Nosotros usamos cartografía cognitiva para sintetizar el conocimiento local sobre causas de kunika y guiar el codiseño de estrategias culturalmente seguras que permitan su disminución. MéTODO: Grupos de hombres y mujeres en doce comunidades hicieron 48 mapas, mientras funcionarios del Estado de Bauchi y del Área Local de Gobierno (LGA) hicieron otros cuatro. Cada mapa mostraba causas de kunika o de no-kunika con flechas indicando la influencia entre ellas. Los participantes ponderaron la influencia entre 1 (la más débil) y 5 (la más fuerte). Nosotros combinamos los mapas por grupos de mujeres, hombres y funcionarios. Con fuzzy transitive closure calculamos la máxima influencia entre factores cuando todas las relaciones en el mapa son consideraras. Condensamos los mapas agrupando factores individuales en categorías y calculamos la influencia neta acumulativa para cada una. Estos mapas los sintetizamos aún más para revisarlos con sus autores. RESULTADOS: Los mapas de los grupos comunitarios identificaron el sexo frecuente y factores relacionados, no usar anticonceptivos modernos o tradicionales y las dinámicas familiares (como el deseo de tener más hijos o la competencia entre esposas) como las causas más importantes de kunika. Los mapas de las mujeres identificaron el sexo forzado como causa importante y los mapas de los hombres destacaron la falta de conocimiento sobre anticoncepción y el temor a los efectos secundarios. La falta de participación masculina apareció en los mapas de las mujeres, del LGA y del Estado. Los mapas de los factores protectores reflejaron en gran medida los de las causas. Los grupos comunitarios aprobaron y apreciaron los mapas que sintetizaban el análisis. CONCLUSIONES: Los mapas comunitarios mostraron que kunika es el resultado de una compleja red de factores con dinámicas culturales específicas. Es poco probable que enfocarse solo en promover anticoncepción reduzca kunika. Los resultados del transitive closure pueden comunicarse al público en general para una mayor participación en la interpretación y uso de los resultados.


Assuntos
Intervalo entre Nascimentos , Participação da Comunidade , Anticoncepção , Características da Família , Saúde Reprodutiva , Criança , Cognição , Serviços de Planejamento Familiar , Feminino , Lógica Fuzzy , Humanos , Masculino , Nigéria , Gravidez
8.
Niger Med J ; 62(5): 293-297, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-38716437

RESUMO

Sacrococcygeal agenesis or caudal regression syndrome is an uncommon disorder in which there is partial or total agenesis of the sacrum with or without lumbar involvement. Very few cases have been reported in the literature. We report a case of a 7-year-old child of a non-diabetic mother who presented with complaints of urinary and faecal incontinence since birth. Clinical examination revealed a soft, fluctuant swelling at the lower aspect of the back. The sacral and coccygeal bones were not palpable. CT scan and MRI confirmed sacrococcygeal agenesis with a sacral lipoma. He was being managed with pelvic floor training and physiotherapy with minimal improvement before being lost to follow up.

9.
Bioinorg Chem Appl ; 2020: 8898360, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33029114

RESUMO

BACKGROUND: Acute myeloid leukemia (AML) persists to be a major health problem especially among children as effective chemotherapy to combat the disease is yet to be available. Boswellia dalzielii is a well-known herb that is traditionally used for treatment and management of many diseases including degenerative diseases. In this study, silver nanoparticles were synthesized from the phytochemicals of B. dalzielii stem bark aqueous extract. The silver nanoparticles were characterized by carrying out Fourier Transform Infrared (FTIR) spectroscopy, Energy Filtered Scanning Electron Microscopy (FESEM), X-ray diffraction, and Dynamic Light Scattering (DLS) analyses. Antioxidant capacity of the nanoparticles was evaluated using 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay, and the antiproliferative effect of the nanoparticles on Kasumi-1 leukemia cells was investigated using PrestoBlue assay. Flow cytometry analysis was performed to observe the effect of the nanoparticles on the leukemia cell cycle progression. RESULTS: Our findings revealed that the synthesized silver nanoparticles were formed from electrons of the plant phytochemicals which include aromatic compounds, ethers, and alkynes. FESEM analysis revealed that the sizes of the nanoparticles range from 12 nm to 101 nm; however, DLS analysis estimated a larger average size of the nanoparticles (108.3 nm) because it measured the hydrodynamic radii of the nanoparticles. The zeta potential of the nanoparticles was -16 nm, and the XRD pattern of the nanoparticles has distinct peaks at 38.02°, 42.94°, 64.45°, 77.20°, and 81.47°, which is typical of face-centered cubic (fcc) structure of silver. The Trolox Equivalence Antioxidant Capacity (TEAC) of the nanoparticles was estimated to be 300.91 µM Trolox/mg silver nanoparticles. The nanoparticles inhibited Kasumi-1 cell proliferation. The half minimal inhibitory concentrations (IC50s) that inhibited Kasumi-1 cell proliferation are 49.5 µg/ml and 13.25 µg/ml at 48 and 72 hours, respectively. The nanoparticles induced cell cycle arrest in the Kasumi-1 cells at S (5% increase) and G2/M (3% increase) phases. CONCLUSION: The nanoparticles synthesized from the stem bark extract of B. dalzielii inhibit the growth of Kasumi-1 leukemia cells by activating cell cycle arrest; thus, they are potential antileukemic agents.

10.
Saudi J Kidney Dis Transpl ; 30(4): 843-852, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31464241

RESUMO

The kidney is an important target organ in human immunodeficiency virus (HIV) infection, and a variety of renal disorders could occur throughout the course of the disease. HIV- associated nephropathy (HIVAN) is the most common form of kidney disease resulting directly from HIV infection. The true prevalence of HIVAN among infected African children is unknown largely due to lack of surveillance and reporting. We thus aimed to determine the prevalence of HIVAN and associated factors among HIV-infected children at the University of Maiduguri Teaching Hospital. This was a cross-sectional study carried out at the Pediatric Infectious Clinic. Children aged ≤15 years were recruited through systematic random sampling. Relevant sociodemographic and clinical information were obtained. Spot urine sample was analyzed using a multistix (Combi-Screen 10SL Analyticon Biotechnologies AG, Germany), and proteinuria of ≥2+ was considered significant. The CD4+ count and CD4+% (for those <5 years) were obtained using a PARTEC™ CD4+ easy count kit. The obtained data were entered and analyzed using Statistical Package for the Social Sciences version 16.0. A total of 250 children were recruited. Eighty-five (34%) of them had HIVAN. Sex, social class, and mode of transmission were not significantly associated with HIVAN (P >0.05). However, age, medication status (highly active antiretroviral therapy [HAART]), duration on HAART, and disease severity (both clinical and immunological) all had a significant association to HIVAN (p = 0.005, 0.004, 0.008, and <0.001, respectively). These factors also showed a positive but weak correlation to HIVAN; while age had the least correlation coefficient (0.157), immunological class had the highest r = 0.458. However, these relationships were all significant (P <0.5). HIVAN is highly prevalent among children living with HIV in Maiduguri. Routine screening through urina-lysis and early commencement of HAART is recommended.


Assuntos
Nefropatia Associada a AIDS/epidemiologia , Infecções por HIV/epidemiologia , Hospitais Universitários , Proteinúria/epidemiologia , Nefropatia Associada a AIDS/diagnóstico , Nefropatia Associada a AIDS/virologia , Adolescente , Fatores Etários , Criança , Pré-Escolar , Estudos Transversais , Feminino , Infecções por HIV/diagnóstico , Infecções por HIV/virologia , Humanos , Lactente , Masculino , Nigéria/epidemiologia , Prevalência , Proteinúria/diagnóstico , Proteinúria/virologia , Fatores de Risco
11.
BMJ Glob Health ; 4(1): e001172, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30899560

RESUMO

INTRODUCTION: Maternal mortality in Nigeria is extremely high. Access to quality antenatal and obstetric care is limited. In Bauchi State, we found maternal morbidity was associated with domestic violence, heavy work in pregnancy, ignorance of danger signs, and lack of spousal communication. This cluster randomized controlled trial tested the impact of universal home visits that discussed these upstream risk factors with pregnant women and their spouses, to precipitate household actions protecting pregnant women. METHODS: We randomly allocated four wards in Toro Local Government Authority to immediate or delayed intervention. Female and male home visitors visited all pregnant women and their spouses in the two intervention wards every 2 months. We compared completed pregnancies between intervention and pre-intervention wards after 1 year. Primary outcomes were pregnancy, delivery, and postnatal complications, analysed with intention to treat using a cluster t-test. Ancillary analysis examined the influence of baseline and health service use differences. RESULTS: Among 1837 women in intervention wards and 1853 women in pre-intervention wards, the intervention reduced problems in pregnancy and post partum: raised blood pressure (relative risk reduction (RRR) 0.120, cluster-adjusted 95% CI (CIca) 0.045 to 0.194; risk difference (RD) 0.116, 95% CIca 0.042 to 0.190) and swelling of face or hands (RRR 0.271, 95% CIca 0.201 to 0.340; RD 0.264, 95% CIca 0.194 to 0.333) and postpartum sepsis (RRR 0.399, 95% CIca 0.220 to 0.577; RD 0.324, 95% CIca 0.155 to 0.493). The intervention reduced the targeted upstream risk factors such as heavy work during pregnancy (RRR 0.234, 95% CIca 0.085 to 0.383; RD 0.222, 95% CIca 0.073 to 0.370). It did not increase use of antenatal care, institutional delivery or skilled birth attendance. CONCLUSION: Home visits reduced upstream maternal risks, improving maternal outcomes without increased use of health services. This could have implications in other settings with poor access to quality antenatal and delivery care services. TRIAL REGISTRATION: ISRCTN82954580.

12.
Ultrason Sonochem ; 50: 172-181, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30245203

RESUMO

Vertically aligned Zinc oxide nanorods (ZnO NRs) were successfully synthesized in this study using the sonochemical method to improve the intrinsic properties of UV photodetector (PD). Three different thin films: Ti/Zn, Ti/ZnO, and Ti/ZnO/Zn, with the thicknesses of 10 nm/55 nm, 10 nm/85 nm, and 10 nm/85 nm/55 nm respectively, were deposited on glass substrates using the RF-sputtering technique. The synthesized ZnO NRs were investigated using XRD, FESEM and Raman spectroscopy to determine the effect of Zn and ZnO as seed layers, and ZnO as a buffer layer on the surface morphology, crystal structure, optical properties of ZnO NRs. The ZnO NRs grown on Zn/Ti, ZnO/Ti, and Zn/ZnO/Ti are characterized by hexagonal crystal structure with preferential growth in the c-axis direction. The ZnO NRs grown on Zn/ZnO/Ti displayed the highest density, uniform size distribution, vertically aligned rods and aspect ratio. The UV device fabricated from the ZnO NRs grown on Zn /ZnO/Ti also showed the highest photocurrent (360 µA) and responsivity of (878 mA/W). ZnO NRs grown on Zn/ZnO/Ti were also observed to be highly stable and exhibited a relatively rapid response and recovery times for different time intervals when exposed to the UV light of 365 nm wavelength. Thus, the inclusion of the ZnO as a buffer layer (Zn as a seed layer/ZnO as buffer layer/Ti as a buffer layer) improve the properties of the ZnO NRs. In addition, the current gain of ZnO NRs grown on Zn (55 nm)/ZnO (85 nm)/Ti (10 nm) - based ultraviolet (UV) photodetector (PD) is about two times higher than that of conventional Zn (55 nm)/ZnO (85 nm)/Ti (10 nm) thin-films UV PD, which is due to the higher surface-to-volume ratio of ZnO nanorods (NRs) compared with their thin films. This study confirms the possibility of sonochemically fabricating vertically aligned ZnO nanorods as well as its applicability as a viable UV photodetector.

13.
Saudi J Kidney Dis Transpl ; 29(6): 1395-1402, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30588972

RESUMO

We aimed to determine the prevalence of urinary schistosomiasis among internally displaced children in Maiduguri, Nigeria. Data on the children's sociodemographic characteristics and risk factors for schistosomiasis were collected, over a period of six months, using an interview-based questionnaire. Ten milliliter of urine sample was collected from each child and investigated for hematuria and ova of Schistosoma haematobium. Two hundred and thirty-eight of 385 children had urinary schistosomiasis (62.0%); of this, 125 (53.0%) were males, with a male:female ratio of 1.1:1. Urinary schistosomiasis was the most common among 5-9 years' age group, low social class children, and children of farmers, P <0.05. Stunting was significantly associated with urinary schistosomiasis, P <0.05. It is concluded that urinary schistosomiasis in children was more frequently associated with stunting and low social class. It was a very common disease among internally displaced children in Nigeria.


Assuntos
Conflitos Armados , Países em Desenvolvimento , Campos de Refugiados , Refugiados , Esquistossomose Urinária/epidemiologia , Terrorismo , Adolescente , Desenvolvimento do Adolescente , Distribuição por Idade , Criança , Desenvolvimento Infantil , Pré-Escolar , Estudos Transversais , Feminino , Humanos , Masculino , Nigéria/epidemiologia , Prevalência , Fatores de Risco , Esquistossomose Urinária/diagnóstico , Esquistossomose Urinária/parasitologia , Esquistossomose Urinária/transmissão , Distribuição por Sexo , Classe Social
14.
BMC Public Health ; 18(Suppl 4): 1307, 2018 Dec 13.
Artigo em Inglês | MEDLINE | ID: mdl-30541495

RESUMO

BACKGROUND: Nigeria is the only country in Africa that is yet to be certified as polio free. Surveillance for acute flaccid paralysis (AFP) is the foundation of the polio eradication initiative since it provides information to alert both health managers and clinician that timely actions should be initiated to interrupt transmission of the polio virus. The strategy also provides evidence for the absence of wild poliovirus. This evaluation was performed to assess key quality indicators defined by the polio eradication program and thus to identify gaps to allow planning for corrective measures to achieve a polio-free situation in Bauchi state and in Nigeria at large. We conducted a cross-sectional descriptive study which involved a desk review of documents to authenticate the correctness and completeness of data, and a review of documented evidence for the quality of AFP surveillance. We interviewed Local Government Authority (LGA) surveillance officers and clinicians from focal and non-focal sites, along with caregivers of children with AFP and community leaders. The data were entered and analyzed in a Microsoft Excel spreadsheet. METHODS: We conducted a cross-sectional study of the AFP surveillance and documentation in eighteen of the twenty Local Government Areas (LGAs) of Bauchi State. We assessed the knowledge of the clinician at focal and non-focal sites on case definition of AFP, the number and method of stool specimen collection to investigate a case and types of training received for AFP surveillance. We verified AFP case investigations for the last three years: The caregivers (mothers) were interviewed to authenticate the reported information of AFP cases, the method used for stool specimen collection and feedbacks. Community leaders' knowledge on AFP surveillance was also assessed. Data was entered and analyzed in excel spread sheet. RESULTS: Of the 18 LGA Disease Surveillance and Notification Officers (DSNOs), only 2 (11%) and 5 (28%) had reports of polio outbreak investigations and supervisory visits at the lower levels, respectively. Furthermore, only 6 (33%) and 7 (39%) of the DSNOs had minutes of meetings and surveillance work plans, respectively. Of the 31 AFP cases investigated, only 39, 26, 23, and 23% had correct and complete information for the birth day, birth month, date of onset of paralysis, and date of investigation, respectively. Seventy-one percent of the clinicians at the AFP focal sites knew the correct definition for AFP compared with only 30% at the non-focal sites. Of the 38 caregivers (mothers), 16 (42%) did not remember the day or month the AFP investigation was conducted. However, 95% gave a correct number of stool samples collected and 40% mentioned that the samples were collected 24 h apart. Feedback was not given to 26 (68%) of the caregivers. The majority (79%) of the community leaders knew how to recognize a case of AFP and knew that the stool was the specimen required for the investigation, but 21% did not know to whom they should report a case of AFP in their community. CONCLUSION: This study revealed a gap in the quality indicators for polio eradication in the state, especially regarding knowledge and documentation for AFP surveillance at the operational level. Regular training of the DSNOs and focal persons, regular sensitization of clinicians, community education, supplies of reporting tools, and ensuring their judicious use will improve AFP surveillance in the state.


Assuntos
Erradicação de Doenças , Documentação/normas , Hipotonia Muscular/epidemiologia , Paralisia/epidemiologia , Poliomielite/prevenção & controle , Vigilância da População , Doença Aguda , Criança , Estudos Transversais , Feminino , Humanos , Masculino , Nigéria/epidemiologia , Poliomielite/epidemiologia
15.
BMC Health Serv Res ; 18(1): 510, 2018 Jul 03.
Artigo em Inglês | MEDLINE | ID: mdl-29970071

RESUMO

BACKGROUND: Maternal mortality in Nigeria is one of the highest in the world. Access to antenatal care is limited and the quality of services is poor in much of the country. Previous research in Bauchi State found associations between maternal morbidity and domestic violence, heavy work in pregnancy, lack of knowledge about danger signs, and lack of spousal communication about pregnancy and childbirth. This cluster randomized controlled stepped-wedge trial will test the impact of universal home visits to pregnant women and their partners, and the added value of video edutainment. METHODS: The trial will take place in six wards of Toro Local Government Area in Bauchi State, Nigeria, randomly allocated into three waves of two wards each. Home visits will begin in wave 1 wards immediately; in wave 2 wards after one year; and in wave 3 wards after a further year. In each wave, one ward, randomly allocated, will receive video edutainment during the home visits. Female home visitors will contact all households in their catchment areas of about 300 households, register all pregnant women, and visit them every two months during pregnancy, after delivery and one year later. They will use android handsets to collect information on pregnancy progress, send this to a central server, and discuss with the women the evidence about household factors associated with higher maternal risks, using video clips in the edutainment wards. Male home visitors will contact the partners of the pregnant women and discuss with them the same evidence. We will compare outcomes between wave 1 and wave 2 wards at about one year, between wave 2 and wave 3 wards at about two years, and finally between wards with and without added edutainment. Primary outcomes will be complications in pregnancy and delivery, and child health at one year. Secondary outcomes include knowledge and attitudes, use of health services, knowledge of danger signs, and household care of pregnant women. DISCUSSION: Demonstrating an impact of home visits and understanding potential mechanisms could have important implications for reducing maternal morbidity and mortality in other settings with poor access to quality antenatal care services. TRIAL REGISTRATION: Registration number: ISRCTN82954580 . Registry: ISRCTN. Date of registration: 11 August 2017. Retrospectively registered.


Assuntos
Acessibilidade aos Serviços de Saúde/organização & administração , Visita Domiciliar , Cuidado Pré-Natal/organização & administração , Saúde da Criança/estatística & dados numéricos , Análise por Conglomerados , Violência Doméstica/estatística & dados numéricos , Feminino , Humanos , Lactente , Recém-Nascido , Mortalidade Materna , Nigéria , Parto , Educação de Pacientes como Assunto/organização & administração , Gravidez , Complicações na Gravidez/etiologia , Resultado da Gravidez , Ensaios Clínicos Controlados Aleatórios como Assunto , Gravação em Vídeo
16.
Environ Sci Pollut Res Int ; 24(34): 26462-26477, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28948471

RESUMO

Socio-demographic factors play a significant role in increasing the individual's climate change awareness and in setting a favorable individual attitude towards its mitigation. To better understand how the adversative effects of climate change can be mitigated, this study attempts to investigate the impact of socio-demographic factors on the mitigating actions of the individuals (MAOI) on climate change. Qualitative data were collected from a face-to-face survey of 360 respondents in the Kuala Lumpur region of Malaysia through a close-ended questionnaire. Analysis was conducted on the mediating effects of attitudinal variables through the path model by using the SEM. Findings indicate that the socio-demographic factors such as gender, age, education, income, and ethnicity can greatly influence the individual's awareness, attitude, risk perception, and knowledge of climate change issues. The results drawn from this study also revealed that the attitudinal factors act as a mediating effect between the socio-demographic factors and the MAOI, thereby, indicating that both the socio-demographic factors and the attitudinal factors have significant effects on the MAOI towards climate change. The outcome of this study can help policy makers and other private organizations to decide on the appropriate actions to take in managing climate change effects. These actions which encompass improving basic climate change education and making the public more aware of the local dimensions of climate change are important for harnessing public engagement and support that can also stimulate climate change awareness and promote mitigating actions to n protect the environment from the impact of climate change.


Assuntos
Conscientização , Mudança Climática , Demografia , Conhecimentos, Atitudes e Prática em Saúde , Adulto , Feminino , Humanos , Malásia , Masculino , Inquéritos e Questionários
17.
J Trop Med ; 2016: 7439605, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26904135

RESUMO

Background. Tetanus toxoid immunisation of pregnant mother has remained the most effective strategy in eliminating neonatal tetanus. Impaired production and/or transplacental transfer of antibodies may affect the effectiveness of this strategy. We studied the effect of maternal HIV infection on serum levels and transplacental transfer of anti-tetanus antibodies. Methods. A total of 162 mother-baby paired serum samples were taken and analysed for anti-tetanus antibody levels using ELISA. Maternal HIV status was also determined by double ELISA technique. Maternal TT vaccination status was also documented. Results. Thirty-eight (23.5%) mothers and 41 (25.3%) babies were seronegative, out of whom 8 mothers were HIV positive and 9 babies were HIV exposed. HIV infected mothers and HIV exposed infants were, respectively, 16.27 times (OR = 16.27, 95% CI = 3.28 to 80.61) and 33.75 times (OR = 33.75, 95% CI = 4.12 to 276.40) more likely to be seronegative for anti-tetanus antibody. Similarly, HIV positive mother-newborn pairs were 7.46 times more likely to have a poor transplacental transfer of tetanus antibodies (OR = 7.46, 95% CI = 1.96 to 28.41). Conclusions. Maternal HIV infection is associated with impaired maternofoetal transfer of anti-tetanus antibodies and seronegativity among mothers and their newborns. Hence, this may hinder efforts to eliminate neonatal tetanus.

18.
Niger Med J ; 56(2): 85-90, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25838621

RESUMO

BACKGROUND: Malaria has remained a major cause of morbidity and mortality among the under-five children in Nigeria. Prompt and accurate diagnosis of malaria is necessary in controlling this high burden and preventing unnecessary use of anti-malarial drugs. Malaria rapid diagnostic test (MRDT) offers the hope of achieving this goal. However, the performance of these kits among the most vulnerable age group to malaria is inadequate. MATERIALS AND METHODS: In this cross-sectional study, 433 out-patients, aged <5 years with fever or history of fever were enrolled. Each candidate was tested for malaria parasitaemia using ACON; malaria pf. Thick and thin films were also prepared from the same finger prick blood for each candidate. RESULT: Malaria rapid diagnostic test had sensitivity of 8.3%, specificity of 100%, positive predictive value (PPV) of 100% and negative predictive value (NPV) of 74%. The sensitivity of MRDT increased with increasing age. This effect of age on sensitivity was statistically significant (P = 0.007). Similarly parasite density had significant effect on the sensitivity of MRDT (P = <0.001). CONCLUSION: Histidine-rich protein-2 based MRDT is not a reliable mean of diagnosing malaria in the under-five age children with acute uncomplicated malaria.

19.
Afr J Paediatr Surg ; 9(2): 163-5, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22878771

RESUMO

Splenic rupture and intracranial haemorrhage are life-threatening conditions infrequently encountered in neonates without history of birth trauma. External manifestations of birth trauma; namely, capput succadeneum and cephalhematoma, when present raise suspicions for more serious intracranial or visceral damage. Rupture of normal spleen without an obvious source of trauma in haemophilic neonate is a rare event. The concurrence of both conditions and the unusual presentation make this case a rare one that is seldom encountered in the literature. Additionally, when splenic rupture occurs, the consensus is to employ all non-operative techniques aimed at salvaging the spleen, thus avoiding the immune-compromised state associated with splenectomy. However, in this case, we present a 3-day-old male with family history of haemophilia A, who was diagnosed with splenic rupture and bilateral subdural haematomas and underwent splenectomy, albeit with post-operative complications, in light of haemodynamic instability and high ongoing transfusion requirements.


Assuntos
Hematoma Subdural Intracraniano/etiologia , Hemofilia A/complicações , Hemorragias Intracranianas/complicações , Ruptura Esplênica/etiologia , Ruptura Esplênica/cirurgia , Coagulantes/administração & dosagem , Fator VIII/administração & dosagem , Hematócrito , Hematoma Subdural Intracraniano/diagnóstico por imagem , Hemofilia A/terapia , Humanos , Recém-Nascido , Masculino , Ruptura Espontânea , Esplenectomia , Tomografia Computadorizada por Raios X
20.
Ann Afr Med ; 11(2): 65-9, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22406663

RESUMO

BACKGROUND: Hysteroscopic adhesiolysis is shown to significantly improve the outcome of intrauterine adhesions (IUA). The Minimally Invasive Surgical Unit (MISU) of our Department recently acquired a hysteroscope which is being used for hysteroscopic adhesiolysis among others. MATERIALS AND METHODS: There were 57 patients diagnosed to have IUA of which 54 case notes were available for analysis, giving a retrieval rate of 95%. The information extracted includes age, parity, and menstrual pattern, predisposing factors, treatment option, outcome, complications and the year of the procedure. The data extracted were analyzed using Epi info Version 3.4.1. Chi squared test (Fisher's exact test) was used to test for statistical difference in the outcome of the modalities of treatment. P value of less than 0.05 was considered significant. RESULTS: There were 57 cases of IUA out of 4160 gynecological patients seen, giving a prevalence of 14/1000. The mean age was 28.9 years (SD 4.5) and mean parity was 1.4 (SD 1.4). Etiologic factors include Dilatation and curettage (D and C) (33.3%), Caesarean section (C/S) (31.5%), manual removal of placenta and Pelvic Inflammatory Disease (PID) (7.4% each), and unexplained (3.7%). Mode of presentation was secondary amenorrhoea (50%), oligomenorrhoea (22.2%), and hypomenorrhoea (10%). As for the management, 68% had blind procedure while 25.9% had hysteroscopic procedure. Lippes loop was used in all except three patients who had pediatric Foleys catheter instead. Upon follow-up 59.3% resumed normal menses, 11.1% had oligomenorrhoea, hypomenorrhoea 13% and amenorrhoea 5.6%. There was no statistical difference in the outcome of treatment between hysteroscopic adhesiolysis and the blind procedure when return to normal menses is considered as the end point, OR=2.27, CI 0.45-12.65, Fisher exact test (one-tailed) P=0.2184818. CONCLUSION: There was no significant difference between the blind and hysteroscopic procedures. Dilatation and curettage was found to be the commonest cause of IUA.


Assuntos
Histeroscopia/métodos , Aderências Teciduais/etiologia , Doenças Uterinas/etiologia , Adolescente , Adulto , Feminino , Hospitais de Ensino , Humanos , Distúrbios Menstruais/etiologia , Distúrbios Menstruais/cirurgia , Pessoa de Meia-Idade , Nigéria/epidemiologia , Paridade , Complicações Pós-Operatórias , Prevalência , Aderências Teciduais/epidemiologia , Aderências Teciduais/cirurgia , Resultado do Tratamento , Doenças Uterinas/epidemiologia , Doenças Uterinas/cirurgia , Adulto Jovem
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