297 research outputs found
Maternal health services in South Africa During the 10th anniversary of the WHO 'Safe Motherhood' initiative
The tenth anniversary of the World Health Organisation's 'Safe Motherhood' initiative is being celebrated this year and the organisation is using the opportunity to assess critically its gains, its strengths and its weaknesses. South Africa has taken some bold steps to address maternal health services, specifically introducing free health care for pregnant women and children under 5. In this paper we explore what further steps are necessary to ensure improved health outcome for pregnant women. South African health care administrations are, in some cases, engaged in broad health systems interventions at provincial level. This approach to improving health services is nonetheless frustrated by programme-specific initiatives, such as the introduction of female condoms or other piecemeal additions. We argue that making the systems function is the essential, primary step in the success of any intervention. The case of maternal health is explored in this paper
The diagnosis, morphological particularities, and surgical technique in a case of intravascular leiomyoma extended to the right heart chambers
Intravenous leiomyoma is a benign smooth muscle cell tumor of uterine origin that may grow into the pelvic veins and the inferior vena cava. It usually affects premenopausal women and the majority (90%) are parous. Because cardiac involvement is present in up to 10% of cases, it may be misdiagnosed as a primary cardiac tumor or a venous thrombus-in-transit. We describe a case of intravascular leiomyomatosis with cardiac extension and the morphological particularities of the removed tumor
Outbreak of Rift Valley fever affecting veterinarians and farmers in South Africa, 2008
Background. During 2008, Rift Valley fever (RVF) virus re-emerged in South Africa as focal outbreaks in several provinces. Aims. To investigate an outbreak affecting cattle farmers and farm workers, and the staff and students of a veterinary school, assess the prevalence of infection during the outbreak, document the clinical presentation of cases, and identify potential risk factors. Methods. We conducted a cross-sectional serological survey of exposed veterinarians and farmers, who were examined to determine the presence of current or recent illness. Blood specimens were collected for virus isolation, nucleic acid detection and serology. A subset was interviewed using a standardised questionnaire to obtain data on recent exposures and risk factors for infection. Results. Of 53 participants potentially exposed to infected domestic ruminants, 15% had evidence of recent infection and 4% evidence of past exposure to the RVF virus. The prevalence of acute infection was 21% in veterinarians compared with 9% in farmers and farm workers. After a mean incubation period of 4.3 days, the most frequent symptoms experienced included myalgia (100%), headache (88%) and malaise (75%). No asymptomatic cases were identified. Transmission by direct contact with infected animals was the major risk factor in these professional groups. Performing animal autopsies was significantly associated with acute infection (risk ratio 16.3, 95% confidence interval 2.3 - 114.2). Conclusions. Increased risks associated with veterinary practices highlight a need for the use of personal protective equipment, and identify veterinarians as a primary target group for future vaccination
Perinatal Epigenetic Determinants of Cognitive and Metabolic Disorders
Multiple cues from the environment of our indirect and immediate ancestors, which often persist throughout the prenatal period and adulthood, are shaping our phenotypes through either direct, parent-to-child influences, or transgenerational inheritance. These effects are due to gene-environment interactions, which are intended to be a predictive tool and a mechanism of quick adaptation to the environment, as compared with genetic variations that are inherited over many generations. In certain circumstances the influences induced by the gene-environment interactions can have deleterious effects upon the health status, in the context of a radical change in the environment that does not fit with the predicted conditions, via epigenetic alterations. Conversely the best fit to the expected environment might have a delayed aging process and a longer life span. This review will touch upon the Developmental Origins of Health and Disease (DoHAD) concept, while discussing recent advances in the understanding of metabolic and cognitive disruptions, with a focus on epigenetic factors, their transgenerational effects, and the consequences they might have upon the onset of chronic disease and premature exitus
A Membrane Defect in the Pathogenesis of the Smith-Lemli-Opitz Syndrome
The Smith-Lemli-Opitz syndrome (SLOS) is an often lethal birth defect resulting from mutations in the gene responsible for the synthesis of the enzyme 3beta-hydroxy-steroid-Delta7-reductase, which catalyzes the reduction of the double bond at carbon 7 on 7-dehydrocholesterol (7-DHC) to form unesterified cholesterol. We hypothesize that the deficiency in cholesterol biosynthesis and subsequent accumulation of 7-DHC in the cell membrane leads to defective composition, organization, dynamics, and function of the cell membrane. Using skin fibroblasts obtained from SLOS patients, we demonstrate that the SLOS membrane has increased 7-DHC and reduced cholesterol content and abnormal membrane fluidity. X-ray diffraction analyses of synthetic membranes prepared to mimic SLOS membranes revealed atypical membrane organization. In addition, calcium permeability is markedly augmented, whereas membrane-bound Na+/K+ATPase activity, folate uptake, inositol-1,4,5-trisphosphate signaling, and cell proliferation rates are markedly suppressed. These data indicate that the disturbance in membrane sterol content in SLOS, likely at the level of membrane caveolae, directly contributes to the widespread tissue abnormalities in this disease
Ethnic differences in effects of maternal prepregnancy and pregnancy adiposity on offspring size and adiposity
10.1210/jc.2015-1728The Journal of Clinical Endocrinology & Metabolism100103641–3650GUSTO (Growing up towards Healthy Outcomes
Morbidity and mortality due to malaria in Est Mono district, Togo, from 2005 to 2010 : a times series analysis
BACKGROUND: In 2004, Togo adopted a regional strategy for malaria control that made use of insecticide-treated
nets (ITNs), followed by the use of rapid diagnostic tests (RDTs), artemisinin-based combination therapy (ACT).
Community health workers (CHWs) became involved in 2007. In 2010, the impact of the implementation of these
new malaria control strategies had not yet been evaluated. This study sought to assess the trends of malaria
incidence and mortality due to malaria in Est Mono district from 2005 to 2010.
METHODS: Secondary data on confirmed and suspected malaria cases reported by health facilities from 2005 to
2010 were obtained from the district health information system. Rainfall and temperature data were provided by
the national Department of Meteorology. Chi square test or independent student’s t-test were used to compare
trends of variables at a 95% confidence interval. An interrupted time series analysis was performed to assess the
effect of meteorological factors and the use of ACT and CHWs on morbidity and mortality due to malaria.
RESULTS: From January 2005 to December 2010, 114,654 malaria cases (annual mean 19,109 ± 6,622) were reported
with an increase of all malaria cases from 10,299 in 2005 to 26,678 cases in 2010 (p<0.001). Of the 114,654 malaria
cases 52,539 (45.8%) were confirmed cases. The prevalence of confirmed malaria cases increased from 23.1 per
1,000 in 2005 to 257.5 per 1,000 population in 2010 (p <0.001). The mortality rate decreased from 7.2 per 10,000 in
2005 to 3.6 per 10,000 in 2010 (p <0.001), with a significant reduction of 43.9% of annual number of death due to
malaria. Rainfall (β-coefficient = 1.6; p = 0.05) and number of CHWs trained (β-coefficient = 6.8; p = 0.002) were
found to be positively correlated with malaria prevalence.
CONCLUSION: This study showed an increase of malaria prevalence despite the implementation of the use of ACT
and CHW strategies. Multicentre data analysis over longer periods should be carried out in similar settings to assess
the impact of malaria control strategies on the burden of the disease. Integrated malaria vector control
management should be implemented in Togo to reduce malaria transmission.AFENET and SAFELTPhttp://www.malariajournal.com/content/11/1/389am2013ay201
Associations of Maternal Dietary Patterns during Pregnancy with Offspring Adiposity from Birth Until 54 Months of Age
10.3390/nu9010002Nutrients91article no. 2GUSTO (Growing up towards Healthy Outcomes
Associations of maternal retinal vasculature with subsequent fetal growth and birth size
10.1371/journal.pone.0118250PLoS ONE104e0118250GUSTO (Growing up towards Healthy Outcomes
7-Dehydrocholesterol–dependent proteolysis of HMG-CoA reductase suppresses sterol biosynthesis in a mouse model of Smith-Lemli-Opitz/RSH syndrome
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