TEM-145 and TEM-146 &#223-lactamases produced by Escherichia coli isolates from state hospitals in KwaZulu-Natal, South Africa

Two Escherichia coli isolates which were isolated from the urine of patients in state hospitals in KwaZulu-Natal, South Africa were investigated to determine the sequence of the TEM -lactamases responsible for their resistance to -lactamase inhibitors. The isolates were subjected to MICdeterminations, iso-electric focusing analysis, plasmid analysis, polymerase chain reaction (PCR) for the detection of -lactamase genes and sequencing of the blaTEM. Analysis of the nucleotide sequencesrevealed the presence of two novel TEM -lactamases, TEM-145 and TEM-146 which had the R244H mutation. Mutations at position 244 have been previously reported in other inhibitor-resistant TEMs (IRTs)

Amendments to the Sexual Offences Act dealing with consensual underage sex: Implications for doctors and researchers

In terms of the Sexual Offences and Related Matters Amendment Act, consensual sex or sexual activity with children aged 12 - 15 was a crime, and as such had to be reported to the police. This was challenged in court in the Teddy Bear case, which held that it was unconstitutional and caused more harm than good. In June 2015, the Amendment Act was accepted by both the National Assembly and the National Council of Provinces, and came into operation on 3 July 2015. This article looks at the amendments to sections 15 and 16 of the Act and what the reporting obligations for medical professionals and researchers are in light of the amendments, as well as the duty to provide medical services and advice to adolescents

Creating an instrument to measure perceptions about access to health-related higher education programmes in South Africa

Background: The South African government has created countless policies that support the need to admit and graduate students who had been excluded from health-science programmes in higher education settings during the apartheid era.Objective: to develop a questionnaire that could be used by various stakeholders to obtain their perceptions about access to health sciences education in higher education settings.Method: A mixed methods design was used; the qualitative stage allowed for the identification of themes while the quantitative stage used measurement theory, to develop an instrument based on those themes.Results: The overarching theme was Achieving equity of access for success is multi-factorial and has diverse and complex challenges and eight sub-themes emerged which were used to create a 17-item questionnaire that has good content validity and reliability (Cronbach alpha=.767).Conclusion: Further psychometric testing with larger, more diverse samples will result in a refined instrument that can be administered to various stakeholder groups, such as current and potential health sciences students and faculties, and used in programme evaluation. Health science programmes can use the instrument to measure access within different disciplines and possible changes over time as innovations are piloted. Different health sciences programmes can be compared and contrasted and objective data can be used to make systematic organizational changes

Point-of-Care Testing for Pharyngitis in the Pharmacy.

Pharyngitis (also known as sore throat) is a common, predominately viral, self-limiting condition which can be symptomatically managed without antibiotic treatment. Inappropriate antibiotic use for pharyngitis contributes to the development and spread of antibiotic resistance. However, a small proportion of sore throats caused by group A streptococcal (GAS) infection may benefit from the provision of antibiotics. Establishing the cause of infection is therefore an important step in effective antibiotic stewardship. Point-of-care (POC) tests, where results are available within minutes, can distinguish between viral and GAS pharyngitis and can therefore guide treatment in primary healthcare settings such as community pharmacies, which are often the first point of contact with the healthcare system. In this opinion article, the evidence for the use of POC testing in the community pharmacy has been discussed. Evidence suggests that pharmacy POC testing can promote appropriate antibiotic use and reduce the need for general practitioner consultations. Challenges to implementation include cost, training and 'who prescribes', with country and regional differences presenting a particular issue. Despite these challenges, POC testing for pharyngitis has become widely available in pharmacies in some countries and may represent a strategy to contain antibiotic resistance and contribute to antimicrobial stewardship

DTi2Vec: Drug-target interaction prediction using network embedding and ensemble learning.

Drug-target interaction (DTI) prediction is a crucial step in drug discovery and repositioning as it reduces experimental validation costs if done right. Thus, developing in-silico methods to predict potential DTI has become a competitive research niche, with one of its main focuses being improving the prediction accuracy. Using machine learning (ML) models for this task, specifically network-based approaches, is effective and has shown great advantages over the other computational methods. However, ML model development involves upstream hand-crafted feature extraction and other processes that impact prediction accuracy. Thus, network-based representation learning techniques that provide automated feature extraction combined with traditional ML classifiers dealing with downstream link prediction tasks may be better-suited paradigms. Here, we present such a method, DTi2Vec, which identifies DTIs using network representation learning and ensemble learning techniques. DTi2Vec constructs the heterogeneous network, and then it automatically generates features for each drug and target using the nodes embedding technique. DTi2Vec demonstrated its ability in drug-target link prediction compared to several state-of-the-art network-based methods, using four benchmark datasets and large-scale data compiled from DrugBank. DTi2Vec showed a statistically significant increase in the prediction performances in terms of AUPR. We verified the novel predicted DTIs using several databases and scientific literature. DTi2Vec is a simple yet effective method that provides high DTI prediction performance while being scalable and efficient in computation, translating into a powerful drug repositioning tool