The current clinically relevant findings on COVID-19 pandemic

The emergence of a novel coronavirus and coronavirus disease 2019 (COVID-19) represents a challenge to global healthcare. In the past 20 years, this is the third coronavirus that jumped the species barrier and infected humans. It is highly contagious but associated with low pathogenicity. First identified in Wuhan, China, a city of over 11 million, the disease has since spread to every continent except Antarctica. About 15 to 20 of all cases may be called severe, and it is believed many cases are asymptomatic. The average age of a person with COVID has been reported as 49 years. Worse outcomes are associated with geriatric populations and those with un-derlying diseases such as cardiovascular, respiratory disorders, and/or diabetes. The coronavirus, like other coronaviruses, is highly contagious and has a latency period of about 14 days. Most patients present with fever and a dry cough, but fever may be absent. Differential diagnosis can be challenging since influenza may present with similar symptoms. Chest radiography or computed to-mography may be used to find evidence of secondary pneumonia. Nosocomial infection is of concern, and it has been reported that 3.8 of all cases with COVID-19 in that country involve healthcare workers in China. Most patients have mild disease, and supportive care suffices. A variety of repurposed and investigational drugs are being evaluated. There are currently no antiviral therapies or vaccines, even if many therapies are proposed. Hand hygiene, social distancing, and scientifically sound information are the best strategies at the moment to combat this epidemic. © 2020, Author(s)

An Induced Mutation in Tomato eIF4E Leads to Immunity to Two Potyviruses

BACKGROUND: The characterization of natural recessive resistance genes and Arabidopsis virus-resistant mutants have implicated translation initiation factors of the eIF4E and eIF4G families as susceptibility factors required for virus infection and resistance function. METHODOLOGY/PRINCIPAL FINDINGS: To investigate further the role of translation initiation factors in virus resistance we set up a TILLING platform in tomato, cloned genes encoding for translation initiation factors eIF4E and eIF4G and screened for induced mutations that lead to virus resistance. A splicing mutant of the eukaryotic translation initiation factor, S.l_eIF4E1 G1485A, was identified and characterized with respect to cap binding activity and resistance spectrum. Molecular analysis of the transcript of the mutant form showed that both the second and the third exons were miss-spliced, leading to a truncated mRNA. The resulting truncated eIF4E1 protein is also impaired in cap-binding activity. The mutant line had no growth defect, likely because of functional redundancy with others eIF4E isoforms. When infected with different potyviruses, the mutant line was immune to two strains of Potato virus Y and Pepper mottle virus and susceptible to Tobacco each virus. CONCLUSIONS/SIGNIFICANCE: Mutation analysis of translation initiation factors shows that translation initiation factors of the eIF4E family are determinants of plant susceptibility to RNA viruses and viruses have adopted strategies to use different isoforms. This work also demonstrates the effectiveness of TILLING as a reverse genetics tool to improve crop species. We have also developed a complete tool that can be used for both forward and reverse genetics in tomato, for both basic science and crop improvement. By opening it to the community, we hope to fulfill the expectations of both crop breeders and scientists who are using tomato as their model of study

Changing perceptions of disability through sport: the case of Singaporean wheelchair basketball

10.1080/21640599.2016.1222659Asia Pacific Journal of Sport and Social Science53157-16

Developing population health research priorities in Asian city state: Results from a multi-step participatory community engagement.

ObjectivesTo identify a broad range of research priorities to inform the studies seeking to improve population health outcomes based on the engagement of diverse stakeholders.MethodsA multi-step, participatory and mixed-methods approach was adopted to solicit and structure the investigative themes from diverse stakeholders. The priority setting exercise involved four key phases: (1) feedback from community leadership; (2) interim ranking survey and focus group discussions during the population health symposium; (3) individual in-depth interviews with stakeholders in the community; and (4) synthesis of the research priorities from the multistep process.ResultsDiverse stakeholders in Singapore, comprising community partnership leaders, health care and social service providers, users of population health services, patients and caregivers, participated in the research priority setting exercise. Initial 14 priorities were identified from six community leadership feedback, 42 survey responses, two focus groups (n = 16) and 95 in-depth interviews. The final integrated research agenda identified six priorities: empower residents and patients to take charge of their health; improve care transition and management through relationship building and communication; enhance health-social care interface; improve respite care services for long-term caregivers; develop primary care as a driving force for care integration; and capacity building for service providers. Selected research questions in each priority area were also generated to develop novel models of care, foster collaboration, implement optimal services and enhance understanding of the end users' care needs.ConclusionsThis study illuminates that greater community engagement in research priority setting for population health can facilitate the formulation of evidence-based research agendas that matter to the care providers and service users in the community. The outcomes derived from this exercise will help focus researchers' efforts through which meaningful gains can be made for population health

Double mutations in eIF4E and eIFiso4E confer recessive resistance to Chilli veinal mottle virus in pepper

To evaluate the involvement of translation initiation factors eIF4E and eIFiso4E in Chilli veinai mottle virus (ChiVMV) infection in pepper, we conducted a genetic analysis using a segregating population derived from a cross between Capsicum annuum 'Dempsey' containing an eIF4E mutation (pvr1 2 ) and C. annuum 'Perennial' containing an eIFiso4E mutation (pvr6). C. annuum 'Dempsey' was susceptible and C. annuum 'Perennial' was resistant to ChiVMV. All F1 plants showed resistance, and F2 individuals segregated in a resistant-susceptible ratio of 166:21, indicating that many resistance loci were involved. Seventy-five F2 and 329 F3 plants of 17 families were genotyped with pvr1 2 and pvr6 allele-specific markers, and the genotype data were compared with observed resistance to viral infection. All plants containing homozygous genotypes of both pvr1 2 and pvr6 were resistant to ChiVMV, demonstrating that simultaneous mutations in eIF4E and eIFiso4E confer resistance to ChiVMV in pepper. Genotype analysis of F2 plants revealed that all plants containing homozygous genotypes of both pvr1 2 and pvr6 showed resistance to ChiVMV. In protein-protein interaction experiments, ChiVMV viral genome-linked protein (VPg) interacted with both eIF4E and eIFiso4E. Silencing of eIF4E and eIFiso4E in the VIGS experiment showed reduction in ChiVMV accumulation. These results demonstrated that ChiVMV can use both eIF4E and eIFiso4E for replication, making simultaneous mutations in eIF4E and eIFiso4E necessary to prevent ChiVMV infection in pepper. © 2009 The Korean Society for Molecular and Cellular Biology and Springer Netherlands