Determination of vectorial potential of Mansonia species in the transmission of Wuchereria bancrofti in Tana-Delta District, Coast-Kenya

Background: Wuchereria bancrofti are parasites causing bancroftian filariasis which is transmitted by different species of mosquitoes. Mosquitoes of Anopheles, Culex and Aedes species are known to transmit W. bancrofti parasites.Objective: To determining the potential of Mansonia species; Ma. africanus and Ma. uniformis in the transmission of W. bancrofti.Design: Cross sectional study.Setting: Villages in Tana Delta district, Kenya.Subjects: In-door collected mosquitoes.Results: A total of one thousand, six hundred and sixty two (1632) female mosquitoes were collected by gravid traps, CDC light traps and Pyrethrum spray methods. Of these, 236 representing 14.5% were identified as Mansonia species. Two filarial larvae of stage two (L2) were obtained from the dissected mosquitoes. Polymerase chain reaction assays did not show any amplified W. bancrofti DNA from the obtained larvae or the mosquitoes.Conclusion: There was no evidence that Mansonia species play a role in the transmission of W. bancrofti

Molecular screening for Plasmodium falciparum resistance markers for artemisinins in Mbita, Kenya

Artemisinins-based combination therapies (ACTs) are being recommended against uncomplicated malaria in endemic areas of Africa. However, in these areas data on their long term usefulness is limited. It has been demonstrated that ACTs resistance may be due to single nucleotide polymorphisms (SNPs) in the chemotherapeutic target, the SERCA-type ATPase protein (PfATPase6). This study analyzed PfATPase6 mutations in asymptomatic infections from samples collected from Mbita, a malaria endemic region in Kenya. Mutations in A623E and S769N residues were screened with gene specific primers followed by sequencing. The study demonstrates that there is no mutation in Mbita, Kenya because neither A623E nor S769N PfATPase6 mutations were detected. Resurgence of infections in this area could be due to re-infections and not drug failure. The study recommends that other sites be assessed for PfATPase 6 mutations to verify the long-term usefulness of ACT and monitor any emergency of resistance.Keywords: ACT (Artemisinins-based Combination Therapy), Molecular, Mutations, PfATPase 6doi: 10.4314/ajcem.v12i3.

Palliative and end-of-life care research in Scotland 2006-2015: A systematic scoping review

Background: The Scottish Government set out its 5-year vision to improve palliative care in its Strategic Framework for Action 2016–2021. This includes a commitment to strengthening research and evidence based knowledge exchange across Scotland. A comprehensive scoping review of Scottish palliative care research was considered an important first step. The aim of the review was to quantify and map palliative care research in Scotland over the ten-year period preceding the new strategy (2006–15). Methods: A systematic scoping review was undertaken. Palliative care research involving at least one co-author from a Scottish institution was eligible for inclusion. Five databases were searched with relevant MeSH terms and keywords; additional papers authored by members of the Scottish Palliative and End of Life Care Research Forum were added. Results: In total, 1919 papers were screened, 496 underwent full text review and 308 were retained in the final set. 73% were descriptive studies and 10% were interventions or feasibility studies. The top three areas of research focus were services and settings; experiences and/or needs; and physical symptoms. 58 papers were concerned with palliative care for people with conditions other than cancer – nearly one fifth of all papers published. Few studies focused on ehealth, health economics, out-of-hours and public health. Nearly half of all papers described unfunded research or did not acknowledge a funder (46%). Conclusions: There was a steady increase in Scottish palliative care research during the decade under review. Research output was strong compared with that reported in an earlier Scottish review (1990–2005) and a similar review of Irish palliative care research (2002–2012). A large amount of descriptive evidence exists on living and dying with chronic progressive illness in Scotland; intervention studies now need to be prioritised. Areas highlighted for future research include palliative interventions for people with non-malignant illness and multi-morbidity; physical and psychological symptom assessment and management; interventions to support carers; and bereavement support. Knowledge exchange activities are required to disseminate research findings to research users and a follow-up review to examine future research progress is recommended