136 research outputs found
Capital Market Predictive Power on the Development of the Nigerian Economy: An Impulse Response and Variance Decomposition Approach
The study investigates the contributions of Nigeria s capital market to the development of Nigeria economy Most researchers focused on the capital market and growth nexus while we deviated by focusing on the role played by the capital market in ensuring the reduction of unemployment and poverty in Nigeria Specifically we investigated the contributions of market capitalization MCAP the value of share traded VST and all share index ASI to the unemployment rate UNPR and poverty NPI reductions in Nigeria within the period 1981 to 2017 The data series used was obtained from the annual statistical bulletin of the central bank of Nigeria CBN and Nigeria stock exchange NSE Preliminary analyses of stationarity and cointegration tests revealed that the series was non stationary at levels and cointegrated respectivel
A Case Report on Autoimmune Encephalitis after Head Trauma
Background: Autoimmune inflammatory encephalitis is an inflammation of the brain characterized by prominent neuropsychiatric symptoms and are associated with antibodies against neuronal cell-surface proteins, ion channels, or receptors. Most common causes of autoimmune encephalitis include Anti-NMDA antibodies, paraneoplastic syndromes, and in rare cases, seroconversion from an HSV infection. This report discusses a rare case of autoimmune encephalitis after a head trauma obtained from a ground level fall.
Case Presentation: Patient was a 55-year-old Hispanic man who presented to the emergency department with worsening confusion. Two months prior, the patient presented to an urgent care with a head laceration after a ground level fall at work. After admission, radiologic findings revealed encephalitis evident by temporal lobe enhancement on MRI. Laboratory and cerebrospinal fluid findings were negative for reasonable causes of encephalitis like Infection, tumor, and metabolic syndromes. Pharmacologic intervention began with the use of methylprednisolone and IVIG for 5 days. Patient saw significant improvement in functional, neurologic, and cognitive status with complete resolution of previously noted enhancement within the left temporal and left occipital lobe.
Conclusion: Autoimmune encephalitis is largely a diagnosis of exclusion. Diagnostic criteria include neuropsychiatric symptoms, nervous system deficits, seizures, and exclusion of reasonable cause. In the absence of an obvious cause and clinical improvement upon treatment with methylprednisolone, it was safe to assume Autoimmune Encephalitis with an unknown etiology or likely triggered by previous head trauma. This case report implies the need for focus on research exploring autoimmune encephalitis secondary to previous head trauma
Quality and Standard Balancing in Nigerian University Education: Implications for the Attainment of the Millennium Development Goals
Education is very crucial in human capital development for the attainment of excellence in the vision area of macro economic, population growth, equity, and natural resource and environmental management. Thus for education to remain āinstrument per excellenceā (NPE 2004), it must be of high quality with an acceptablestandard tone. This paper took its conceptual framework from existing practice ennoblement assumptions, the educational variables that can be utilized to attain quality and standard balance in Nigeria universities. Also, this paper constructively matched operative issues found to be constraining quality and standard in university education in Nigeria with strategic solutions in order to balance sustainable system ontheory and practice. It argues that there still exists educational policies such as quota system and government non- chalant attitude to education, thus there is need for a review of higher education policies in the light of the Millennium Development Goals (MDG). This paper therefore posits that for positive reflection of the MDG in highereducation, the government should consider the review and implementation of these educational variables in universities
Impact of HIV infection and zidovudine therapy on RBC parameters and urine methylmalonic acid levels
Background. Anaemia is a common complication of human immunodeficiency virus (HIV) infection. The aim of this study was to investigate the impact of HIV infection and zidovudine on red blood cells (RBC) parameters and urine methylmalonic acid (UMMA) levels in patients with HIV infection. Material and Methods. A cross-sectional study involving 114 subjects, 94 of which are HIV-infected nonanaemic and 20 HIV negative subjects (Cg) as control. Full blood count parameters and urine methylmalonic acid (UMMA) level of each subject were determined. Associations were determined by Chi-square test and logistic regression statistics where appropriate. Results. Subjects on zidovudine-based ART had mean MCV (93āfL) higher than that of control group (82.9āfL) and ART-naĆÆve (85.9āfL) subjects and the highest mean RDW. Mean UMMA level, which reflects vitamin B12 level status, was high in all HIV-infected groups but was significantly higher in ART-naĆÆve subjects than in ART-experienced subjects. Conclusion. Although non-zidovudine therapy may be associated with macrocytosis (MCV > 95āfL), zidovudine therapy and ART naivety may not. Suboptimal level of vitamin B12 as measured by high UMMA though highest in ART-naĆÆve subjects was common in all HIV-infected subjects
Compliance with eight years of annual ivermectin treatment of onchocerciasis in Cameroon and Nigeria
<p>Abstract</p> <p>Background</p> <p>As the African Programme for Onchocerciasis Control (APOC) matured into its 10<sup>th </sup>year of ensuring community involvement in mass annual treatment of onchocerciasis with ivermectin, there was recognition of a need to study not only annual coverage of ivermectin in villages but also the compliance of individual villagers with these annual treatments. This was based on the concern that while population coverage goals may be achieved each year, there might be segments of the population who systematically are not complying with the annual regimen, thus creating a reservoir of infection and threatening program gains.</p> <p>Methods</p> <p>A multi-site study in five APOC sponsored projects in Nigeria and Cameroon was undertaken to identify the socio-demographic correlates of compliance with ivermectin treatment. A total of 8,480 villagers above 9 years of age selected through a systematic random sampling from 101 communities were surveyed to ascertain their levels of compliance, by adapting APOC's standard household ivermectin survey form. Community leaders, community directed distributors (CDDs) of ivermectin and health workers were interviewed with in-depth interview guides, while focus group discussions were held with community members to help explain how socio-demographic factors might affect compliance.</p> <p>Results</p> <p>Eight-year compliance ranged from 0 to 8 times with 42.9% taking ivermectin between 6-8 times annually (high compliance). In bivariate analysis high compliance was positively associated with being male, over 24 years of age, having been married, not being Christian, having little or no formal education and being in the ethnic majority. These variables were also confirmed through regression analysis based on total times ivermectin was taken over the period. While these factors explained only 8% of the overall variation in compliance, ethnic status and education appeared to be the strongest factors. Those with higher education may be more mobile and harder to reach while neglect of ethnic minorities has also been documented in other programs.</p> <p>Conclusion</p> <p>These findings can help managers of CDTI programmes to ensure ivermectin reaches all segments of the population equally.</p
The geographic distribution of onchocerciasis in the 20 participating countries of the African Programme for Onchocerciasis Control:(2) pre-control endemicity levels and estimated number infected
BACKGROUND: The original aim of the African Programme for Onchocerciasis Control (APOC) was to control onchocerciasis as a public health problem in 20 African countries. In order to identify all high risk areas where ivermectin treatment was needed to achieve control, APOC used Rapid Epidemiological Mapping of Onchocerciasis (REMO). REMO involved spatial sampling of villages to be surveyed, and examination of 30 to 50 adults per village for palpable onchocercal nodules. REMO has now been virtually completed and we report the results in two articles. A companion article reports the delineation of high risk areas based on expert analysis. The present article reports the results of a geostatistical analysis of the REMO data to map endemicity levels and estimate the number infected. METHODS: A model-based geostatistical analysis of the REMO data was undertaken to generate high-resolution maps of the predicted prevalence of nodules and of the probability that the true nodule prevalence exceeds the high risk threshold of 20%. The number infected was estimated by converting nodule prevalence to microfilaria prevalence, and multiplying the predicted prevalence for each location with local data on population density. The geostatistical analysis included the nodule palpation data for 14,473 surveyed villages. RESULTS: The generated map of onchocerciasis endemicity levels, as reflected in the prevalence of nodules, is a significant advance with many new endemic areas identified. The prevalence of nodules wasā>ā20% over an area of 2.5 million km2 with an estimated population of 62 million people. The results were consistent with the delineation of high risk areas of the expert analysis except for borderline areas where the prevalence fluctuated around 20%. It is estimated that 36 million people would have been infected in the APOC countries by 2011 if there had been no ivermectin treatment. CONCLUSIONS: The map of onchocerciasis endemicity levels has proven very valuable for onchocerciasis control in the APOC countries. Following the recent shift to onchocerciasis elimination, the map continues to play an important role in planning treatment, evaluating impact and predicting treatment end dates in relation to local endemicity levels
Drawing and interpreting data: Children's impressions of onchocerciasis and community-directed treatment with ivermectin (CDTI) in four onchocerciasis endemic countries in Africa
Although the depiction of a child leading a blind man is the most enduring image of onchocerciasis in Africa, research activities have hardly involved children. This paper aims at giving voice to children through drawings and their interpretation. The study was conducted in 2009 in Cameroon, Democratic Republic of Congo (DRC), Nigeria and Uganda. Children aged 6ā16 years were asked to draw their perceptions of onchocerciasis and community-directed treatment with ivermectin (CDTI) in their communities. A total of 50 drawings were generated. The drawings depicted four main aspects of onchocerciasis: (1) the disease symptoms, (2) the negative consequences of onchocerciasis among children and in the community generally, (3) the ivermectin distribution process, and (4) the benefits or effects of taking ivermectin. Out of the 50 drawings, 30 were on symptoms, 7 on effects of the disease on children, 8 on distribution process, and 5 represented multiple perceptions on symptoms, drug distribution processes, benefits, and effects of treatment. The lack of clarity when treatment with ivermectin can be stopped in endemic areas requires working with children to ensure continued compliance with treatment into the future. Children's drawings should be incorporated into health education interventions
Impact of Noise on Hearing Amongst Commercial Motor Bike Riders in Benin- City, Nigeria.
The ambient noise level and noise-induced hearing impairment (NIHI) in
200 motorbike riders from six motorbike parks were evaluated. All were
males aged between 20- 62 years. Subjects were sampled using a cluster
sampling technique. Parameters measured were environmental noise using
the noise meter (peters) and hearing function using an audiometer
(amplaid). A control group of 150 males was selected from amongst the
staff of the University of Benin Teaching Hospital and students of
University of Benin after informed consent was obtained. The mean
ambient noise for motor bike riders was 90 \ub110 dB a level
significantly (x=0.000), higher than the International Standard
Organization (ISO) standard of 60dB. That for control group was 50
\ub1 10dB. While there was no NIHI in control group, a significant
hearing impairment for both air conduction (AC) and Bone conduction
(BC) was observed in the study group. Unlike previous observations AC
and BC impairment were predominantly in the left ear. Development of
both AC and BC impairments increased with period of exposure.
Environment noise impacts adversely on hearing and is a risk factor in
commercial motorbike riders. Development of NIHI is significantly
higher in the left ear than right unlike in other occupations
Impact of long-term treatment of onchocerciasis with ivermectin in Kaduna State, Nigeria: first evidence of the potential for elimination in the operational area of the African Programme for Onchocerciasis Control.
BACKGROUND: Onchocerciasis can be effectively controlled as a public health problem by annual mass drug administration of ivermectin, but it was not known if ivermectin treatment in the long term would be able to achieve elimination of onchocerciasis infection and interruption of transmission in endemic areas in Africa. A recent study in Mali and Senegal has provided the first evidence of elimination after 15-17 years of treatment. Following this finding, the African Programme for Onchocerciasis Control (APOC) has started a systematic evaluation of the long-term impact of ivermectin treatment projects and the feasibility of elimination in APOC supported countries. This paper reports the first results for two onchocerciasis foci in Kaduna, Nigeria. METHODS: In 2008, an epidemiological evaluation using skin snip parasitological diagnostic method was carried out in two onchocerciasis foci, in Birnin Gwari Local Government Area (LGA), and in the Kauru and Lere LGAs of Kaduna State, Nigeria. The survey was undertaken in 26 villages and examined 3,703 people above the age of one year. The result was compared with the baseline survey undertaken in 1987. RESULTS: The communities had received 15 to 17 years of ivermectin treatment with more than 75% reported coverage. For each surveyed community, comparable baseline data were available. Before treatment, the community prevalence of O. volvulus microfilaria in the skin ranged from 23.1% to 84.9%, with a median prevalence of 52.0%. After 15 to 17 years of treatment, the prevalence had fallen to 0% in all communities and all 3,703 examined individuals were skin snip negative. CONCLUSIONS: The results of the surveys confirm the finding in Senegal and Mali that ivermectin treatment alone can eliminate onchocerciasis infection and probably disease transmission in endemic foci in Africa. It is the first of such evidence for the APOC operational area
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