119 research outputs found
Ebola virus disease and pregnancy outcome: A review of the literature
Introduction: Ebola virus disease (EVD) is a disease of humans and other primates caused by Ebola viruses. The most widespread epidemic of EVD in history occurred recently in several West African countries. The burden and outcome of EVD in pregnant women remains uncertain. There are few reports to date on maternal and fetal outcomes among pregnant women with EVD, hence the justification for this comprehensive review of these published studies.Materials and Methods: Published literature in Englishthat reported on maternal and or fetal outcome among pregnant women with EVD up to May 2016 were searched in electronic databases (Google Scholar, Medline, Embase, PubMed, AJOL, and Scopus). Studies that did not meet the inclusion criteria were excluded. We extracted the following variables from each study: Geographical location, year of the study, settings of the study, participants, maternal and fetal outcome.Results: A total of 12 studies reported on 108 pregnant women and 110 fetal outcomes. Six of the studies were case reports, three retrospective studies, two cross‑sectional studies, and one was a technical report. There were 91 (84.3%) deaths out of the 108 pregnant women, while only one (0.9%) fetal survival was reported out of 110. The survival rate among the 15 patients that had spontaneous abortion/stillbirth or induced delivery was 100%.Conclusion: There was a poor maternal and fetal outcome among pregnant women with EVD, and fetal evacuation significantly improves maternal survival.Key words: Africa; Ebola; fetal; maternal; outcome
Disseminated Cutaneous Leishmaniasis in HIV positive patient - A Case Report
Disseminated cutaneous leishmaniasis and HIV dual-infection is seldom reported. Leishmaniasis and HIV co-infection may intensify the immunedefect and is the chief reason for atypical presentation and widespread progression of cutaneous leishmaniasis and its defiance to conventional therapy. Here we report a 38-yearold HIV-positive ladywhopresented with a 6-month history of a progressive papule and nodular eruptions of leishmaniasis on face, trunk and extremities that was recalcitrant to treatment.Keywords: Co-infection, Diffuse cutaneous leishmaniasis, HIV infection
Evaluation of antiulcer activity of aqueous ethanol extract of Thesium viride on ethanol and aspirin induced models in rats
Thesiumviride Hill (Santalaceae) is a sub-shrub hemiparasite that grows up to 45cm tall and widely distributed in Europe, Asia and Africa. It is used in treatment of ulcer and jaundice. Phytochemical screening was carried out on the aqueous ethanol extract of the whole plant by using standard phytochemical methods. Acute oral toxicity test was carried out and antiulcer activity was conducted using absolute ethanol and aspirin as the ulcerogenic agents on rats where the ulcer index was the parameter and percentage preventive index was determined. The aqueous ethanol extract of the plant was found to contain flavonoids, anthraquinones, glycosidesand alkaloids. Acute toxicity test showed an oral LD50 greater than 5000 mg/kg. In ethanol model, aqueous ethanol extract at doses of 250 and 500 mg/kg exhibited significant (P<0.0001) protection against ulcer with mean ulcer indices of 4.40 ± 0.60 and 1.80 ± 0.37 respectively as compared with negative (12.80 ± 0.97) and positive (4.00 ± 0.71)control mean ulcer indices. In aspirin model, aqueous ethanol extract at doses of 250 and 500 mg/kg demonstrated significant (P<0.05) protection against ulcer with mean ulcer indices of 3.20 ± 0.80 and 2.60 ± 0.24 respectively ascompared with negative (5.60 ± 0.97) and positive (1.00 ± 0.44) controlmean ulcer indices. The higher dose of the extract demonstrated greater protective ability with percentage preventive index 85.94% in ethanol induced model and 53.57% in aspirin induced model. The aqueous ethanol extract of the plant was found to be non-toxic and contains some phytochemicals that could be responsible for its antiulcer activity.Keywords: Thesiumviride, Phytochemical, LD50, Ulcer index, Aqueous ethanol extrac
Occurrence of hypocortisolism in HIV patients: Is the picture changing?
Background: The occurrence of endocrine diseases in people who are infected with HIV is traditionally thought to occur in the setting of AIDS with opportunistic infections and malignancies. However, recent studies find the correlation between hypocortisolism and stage of HIV (CD4 count and WHO clinical stage) inconsistent.Methods: This descriptive cross-sectional study included three hundred and fifty (350) consecutive patients with HIV infection. They were interviewed, and subsequently underwent laboratory evaluation for the detection of hypocortisolism. Blood samples for serum cortisol estimation were taken at baseline and at 30 minutes following the administration of 1μg of tetracosactrin (Synacthen). In addition, the patients had blood samples taken at 0 minutes (baseline) for CD4+ lymphocyte cell counts.Results: At baseline, 108 (30.9%) participants had serum cortisol levels below 100 μg/L with a median value of 55.48 μg/L (11.36-99.96 μg/L), but only 57 (16.3%) study participants had stimulated serum cortisol levels below 180 μg/L with median of 118 μg/L (19.43-179.62). There was no significant difference in the occurrence of clinical features between participants with low and normal serum cortisol, nor WHO clinical stage, CD4 count and ART regimen. The occurrence of hypocortisolism was higher among participants who had been on ART for a longer period of time.Conclusion: There is a high prevalence of hypocortisolism among HIV patients by biochemical testing, especially those who have been on ARVs for a longer duration. Hypocortisolism cannot be predicted based on the participants’ WHO clinical stage of disease, CD4 cell count, or the treatment regimen. Funding: Personal FundsKeywords: HIV, Adrenocortical insufficiency, CD4 cell count, Tetracosactri
Effect of Gross Alpha and Beta in Groundwater Intake and Estimation of Groundwater Table in Kano University of Science and Technology, Wudil
Groundwater levels in Kano University of Science and Technology (KUST), Wudil were measured in hand-dug wells and boreholes. Water samples were collected in both hand-dug wells and boreholes in the study area, and their radiological quality was measured using an internal proportion counter (model EURISYS MEASURE IN 20) instrument, Results of the measurements shows the gross alpha and beta particles presence. The average depth to water table was 419 m, while the gross alpha activity ranging between 0.022 Bq/l to 0.0005 Bq/l, with an average (mean) of 0.0062 Bq/l, and that of beta activity ranges between 0.345 Bq/l to 0.0080 Bq/l, with an average (mean) of 0.0478 Bq/l. These results reveals that; the groundwater in the study area, is not radioactively contaminated, as the values obtained were all below the World Health Organization (WHO), Environmental Protection Agency (EPA), and Australian Laboratory Services (ALS) drinking water guideline values of 1.0 Bq/l for the gross beta radioactivity, and value of 0.5 Bq/l for gross alpha activity, values of 0.1 Bq/l for both the gross alpha and beta and values of 0.5 Bq/l for both gross alpha and beta activities respectively. Hence, the groundwater of the study area (KUST, Wudil.) is radioactively safe to use
Perception and beliefs about mental illness among adults in Karfi village, northern Nigeria
BACKGROUND: This study was designed to examine the knowledge, attitude and beliefs about causes, manifestations and treatment of mental illness among adults in a rural community in northern Nigeria. METHODS: A cross sectional study design was used. A pre-tested, semi-structured questionnaire was administered to 250 adults residing in Karfi village, northern Nigeria. RESULTS: The most common symptoms proffered by respondents as manifestations of mental illness included aggression/destructiveness (22.0%), loquaciousness (21.2%), eccentric behavior (16.1%) and wandering (13.3%). Drug misuse including alcohol, cannabis, and other street drugs was identified in 34.3% of the responses as a major cause of mental illness, followed by divine wrath/ God's will (19%), and magic/spirit possession (18.0%). About 46% of respondents preferred orthodox medical care for the mentally sick while 34% were more inclined to spiritual healing. Almost half of the respondents harbored negative feelings towards the mentally ill. Literate respondents were seven times more likely to exhibit positive feelings towards the mentally ill as compared to non-literate subjects (OR = 7.6, 95% confidence interval = 3.8–15.1). CONCLUSIONS: Our study demonstrates the need for community educational programs in Nigeria aimed at demystifying mental illness. A better understanding of mental disorders among the public would allay fear and mistrust about mentally ill persons in the community as well as lessen stigmatization towards such persons
Role of Serial Polio Seroprevalence Studies in Guiding Implementation of the Polio Eradication Initiative in Kano, Nigeria: 2011-2014.
BACKGROUND: Nigeria was one of 3 polio-endemic countries before it was de-listed in September 2015 by the World Health Organization, following interruption of transmission of the poliovirus. During 2011-2014, Nigeria conducted serial polio seroprevalence surveys (SPS) in Kano Metropolitan Area, comprising 8 local government areas (LGAs) in Kano that is considered very high risk (VHR) for polio, to monitor performance of the polio eradication program and guide the program in the adoption of innovative strategies. METHODS: Study subjects who resided in any of the 8 local government areas of Kano Metropolitan Area and satisfied age criteria were recruited from patients at Murtala Mohammed Specialist Hospital (Kano) for 3 seroprevalence surveys. The same methods were used to conduct each survey. RESULTS: The 2011 study showed seroprevalence values of 81%, 75%, and 73% for poliovirus types 1, 2, and 3, respectively, among infants aged 6-9 months age. Among children aged 36-47 months, seroprevalence values were greater (91%, 87%, and 85% for poliovirus types 1, 2, and 3, respectively).In 2013, the results showed that the seroprevalence was unexpectedly low among infants aged 6-9 months, remained high among children aged 36-47 months, and increased minimally among children aged 5-9 years and those aged 10-14 years. The baseline seroprevalence among infants aged 6-9 months in 2014 was better than that in 2013. CONCLUSIONS: The results from the polio seroprevalence surveys conducted in Kano Metropolitan Area in 2011, 2013, and 2014 served to assess the trends in immunity and program performance, as well as to guide the program, leading to various interventions being implemented with good effect, as evidenced by the reduction of poliovirus circulation in Kano
Causal attribution of mental illness in south-eastern Nigeria
Background:
Understanding of mental illness in sub-Saharan Africa has remained under-researched in spite of the high and increasing neuropsychiatric burden of disease in the region.
Aims:
This study investigated the causal beliefs that the Igbo people of south-eastern Nigeria hold about schizophrenia, with a view to establishing the extent to which the population makes psychosocial, biological and supernatural attributions.
Method:
Multi-stage sampling was used to select participants (N = 200) to which questionnaires were administered.
Results:
Mean comparison of the three causal models revealed a significant endorsement of supernatural causation. Logistic regressions revealed significant contributions of old age and female gender to supernatural attribution; old age, high education and Catholic religious denomination to psychosocial attributions; and high education to biological attributions.
Conclusions:
It is hoped that the findings would enlighten, augment literature and enhance mental health care service delivery
Quantum walks: a comprehensive review
Quantum walks, the quantum mechanical counterpart of classical random walks,
is an advanced tool for building quantum algorithms that has been recently
shown to constitute a universal model of quantum computation. Quantum walks is
now a solid field of research of quantum computation full of exciting open
problems for physicists, computer scientists, mathematicians and engineers.
In this paper we review theoretical advances on the foundations of both
discrete- and continuous-time quantum walks, together with the role that
randomness plays in quantum walks, the connections between the mathematical
models of coined discrete quantum walks and continuous quantum walks, the
quantumness of quantum walks, a summary of papers published on discrete quantum
walks and entanglement as well as a succinct review of experimental proposals
and realizations of discrete-time quantum walks. Furthermore, we have reviewed
several algorithms based on both discrete- and continuous-time quantum walks as
well as a most important result: the computational universality of both
continuous- and discrete- time quantum walks.Comment: Paper accepted for publication in Quantum Information Processing
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